WorldWideScience

Sample records for building constructing

  1. Building Design & Construction - Sustainability

    Energy Technology Data Exchange (ETDEWEB)

    None

    2003-11-01

    Offers a brief history of green building; presents the results of a specially commissioned survey; and analyzes the chief trends, issues, and published research, based on interviews with dozens of experts and participants in green building.

  2. Collapse simulation of building constructions

    Directory of Open Access Journals (Sweden)

    Nekrest'yanov Viktor Nikolaevich

    Full Text Available The physical reasons for building structures destruction are both the forces arising at stress-strain state of construction elements and external influences arising at emergency situations, as well as their moments, impulses and periodic impulses with the frequencies close to of fluctuations frequencies of construction elements. We shall call the mathematical calculation models for the parameters-reasons of destructions the basic models. The basic models of destruction of building structures elements allow not only providing necessary level of reliability and survivability of the elements and the construction as a whole already at the stage of their design, but also giving the chance, at their corresponding completion, to provide rational decisions on the general need of recovery works and their volume depending on destruction level. Especially important for rational design decisions development, which ensure the demanded constructional safety of building structures, is library creation of the basic mathematical models of standard processes of bearing elements destructions for standard construction designs for the purpose of the further forecast (assessment of the level and probabilities of standard destructions. Some basic mathematical models of destructions processes of the standard elements of building structures are presented in the present article. A model of accounting for construction defects and a model of obtaining requirements to probabilities of partial destructions of a construction are given. Both of these models are probabilistic.

  3. Building constructions: architecture and nature

    Directory of Open Access Journals (Sweden)

    Mayatskaya Irina

    2017-01-01

    Full Text Available The problem of optimization of building structures is considered in architectural bionic modeling on the bionic principle basis. It is possible to get a reliable and durable constructions by studying the structure and the laws of organization of natural objects. Modern architects have created unique buildings using the bionic approach. There are such properties as symmetry, asymmetry, self-similarity and fractality used in the modern architecture. Using the methods of fractal geometry in the design of architectural forms allows finding a variety of constructive solutions.

  4. Building Construction Elements, Building Envelope and Method for Constructing a Building Envelope

    DEFF Research Database (Denmark)

    2009-01-01

    High-strength concrete building system and method of assembly for construction a buiding envelope.......High-strength concrete building system and method of assembly for construction a buiding envelope....

  5. Green Construction in Building Renovation

    Directory of Open Access Journals (Sweden)

    Ksit Barbara

    2016-06-01

    Full Text Available Modern materials and construction solutions draw more and more attention to ecology and building certification. Among the criteria appearing in revitalization, an important element is bringing plants back into heavily urbanized areas. In its natural form, this is not possible to carry out everywhere, often requiring large amounts of space. Nowadays, however, there are a number of green roofs and green wall systems, allowing “greener” construction without making significant changes in the urban environment.

  6. Material Efficiency of Building Construction

    Directory of Open Access Journals (Sweden)

    Antti Ruuska

    2014-07-01

    Full Text Available Better construction and use of buildings in the European Union would influence 42% of final energy consumption, about 35% of our greenhouse gas emissions and more than 50% of all extracted materials. It could also help to save up to 30% of water consumption. This paper outlines and draws conclusions about different aspects of the material efficiency of buildings and assesses the significance of different building materials on the material efficiency. The research uses an extensive literature study and a case-study in order to assess: should the depletion of materials be ignored in the environmental or sustainability assessment of buildings, are the related effects on land use, energy use and/or harmful emissions significant, should related indicators (such as GHGs be used to indicate the material efficiency of buildings, and what is the significance of scarce materials, compared to the use of other building materials. This research suggests that the material efficiency should focus on the significant global impacts of material efficiency; not on the individual factors of it. At present global warming and greenhouse gas emissions are among the biggest global problems on which material efficiency has a direct impact on. Therefore, this paper suggests that greenhouse gas emissions could be used as an indicator for material efficiency in building.

  7. Green Construction in Building Renovation

    Science.gov (United States)

    Ksit, Barbara; Majcherek, Michał

    2016-06-01

    Modern materials and construction solutions draw more and more attention to ecology and building certification. Among the criteria appearing in revitalization, an important element is bringing plants back into heavily urbanized areas. In its natural form, this is not possible to carry out everywhere, often requiring large amounts of space. Nowadays, however, there are a number of green roofs and green wall systems, allowing "greener" construction without making significant changes in the urban environment. The article includes a presentation and analysis of selected solutions of biological surfaces known as green roofs and green walls, specifying various solutions and their most important features. The case study focuses primarily on material and design solutions, as well as the potential benefits, risks and limitations in their use. Plants structures on the surfaces of vertical and horizontal partitions continue to be a very interesting alternative to take into account when applying for grants, such as LEED or BREEAM certificates.

  8. Handbook of energy use for building construction

    Energy Technology Data Exchange (ETDEWEB)

    Stein, R.G.; Stein, C.; Buckley, M.; Green, M.

    1980-03-01

    The construction industry accounts for over 11.14% of the total energy consumed in the US annually. This represents the equivalent energy value of 1 1/4 billion barrels of oil. Within the construction industry, new building construction accounts for 5.19% of national annual energy consumption. The remaining 5.95% is distributed among new nonbuilding construction (highways, ralroads, dams, bridges, etc.), building maintenance construction, and nonbuilding maintenance construction. The handbook focuses on new building construction; however, some information for the other parts of the construction industry is also included. The handbook provides building designers with information to determine the energy required for buildings construction and evaluates the energy required for alternative materials, assemblies, and methods. The handbook is also applicable to large-scale planning and policy determination in that it provides the means to estimate the energy required to carry out major building programs.

  9. Development of Building Envelope Constructions

    DEFF Research Database (Denmark)

    Tommerup, Henrik Monefeldt; Munch-Andersen, Jørgen; Esbensen, Peter Kjær

    2000-01-01

    from solid materials as masonry and concrete and framed walls have been dealt with. Three types of foundation and five types of wall have been studied in detail, one of which is just the traditional cavity wall with increased insulation. Cost analysis has proved that the suggested wall types......It is expected that the heat insulation demands in the Danish Building Regulations will be further increased around 2005, in order to reduce the heating demand and the CO2-emission. A simple increase of the insulation thickness of common wall types seems not to be attractive due to the increased...... effect of the 2-dimensional heat loss, the large wall thickness, and the costs of the wide foundation. Therefore, new types of walls have been developed. It is sought to minimise the total heat loss as well as the material consumption. The target was to come up with new walls for which the construction...

  10. Energy efficiency and building construction in India

    Energy Technology Data Exchange (ETDEWEB)

    Tiwari, Piyush [Tsukuba Univ., Inst. of Policy and Planning Sciences, Tsukuba (Japan)

    2001-12-01

    The energy conservation has become an important issue in building design, it is logical to apply the principle of energy costing to building projects, and to look for ways to minimize the total energy consumed during their lifetime. Even though the total quantity of energy consumed in a building during its lifetime may be many times than that consumed in its construction, there are number of reasons why the energy use in the construction process, and in particular in the building materials used, should be treated as a matter of importance in looking for ways to minimize energy use in the built environment as a whole. In this paper the energy costs of alternative construction techniques using an optimization framework are assessed and compared. The techniques of construction evaluated in this paper are commonly used pucca techniques as well as low-cost construction techniques. Energy consumption and resource requirements due to the use of alternative techniques of construction for a representative room of size 3.5 m x 3.5 m x 3.14 m are evaluated. An assessment of the magnitude of energy consumption, if housing shortages have to be met, shows that a huge amount of energy would be consumed in housing sector alone. The associated levels of carbon dioxide emissions associated with this construction would also be prohibitively high. Finally the paper concludes with recommendations for structural changes in the energy and construction policy in India to minimize energy consumption in building construction. (Author)

  11. Madison Milton Design Build Bridge Construction

    OpenAIRE

    Johnson, Murray

    2013-01-01

    The design build team will provide an overview of the Madison Milton Ohio River Bridge Project construction. There will be a brief discussion of the design-build process. Specific discussions of the retrofits to the existing caissons and piers that allowed for the existing substructure to be reused as well as discussions of the truss design, erection, span lifts, and sliding will be provided.

  12. Utilizing Building Information Modelling in Construction Procurement

    OpenAIRE

    Hassinen, Mikko Henrik

    2017-01-01

    The goal of this Bachelor’s thesis was to identify potential uses of building information modelling (BIM) in construction procurement, and to generate guidelines to help in larger scale BIM utilization. Scientific articles and books were the foundation for the theoretical background for this work, together with the previously published Common BIM Requirements 2012 (COBIM2012) -guidelines for building information modelling. Various people responsible for procurement and cost estimation wer...

  13. Communication of Ergonomics in building and construction.

    Science.gov (United States)

    Wiberg, Viveca

    2012-01-01

    For the coming years SWEA is planning for communication and information actions. One of the sectors concerned is the building and construction industry. Focus of the information is to avoid accidents and injuries, and how companies by themselves can prevent risks. The objective of the information is to increase awareness among all stakeholders in order to secure that they are willing and able to reduce risks for workers. At the conference two brochures will be presented. They are designed to provide information and knowledge about specific risks of occupational accidents and occupational diseases which occur frequently during construction work and how they can be prevented. They are directed to all those who are involved in the construction process at different stages and who are subject to SWEAs rules and regulations. New identified risk groups are e.g. students, apprentices, self-employed, and foreign workers temporarily working in Sweden. We also see that work is still being carried out in narrow installation spaces during erection stage of buildings because the people responsible for the drawings do not take notice of the need for sufficient space to do the work. SWEA experienced that it is difficult to reach all the groups concerned with the message about how to avoid injuries and unnecessary musculoskeletal disorders.

  14. Evaluating The Impact Of Building Information Modeling (BIM) On Construction

    Science.gov (United States)

    2009-01-01

    1 EVALUATING THE IMPACT OF BUILDING INFORMATION MODELING (BIM) ON CONSTRUCTION By PATRICK C. SUERMANN...Evaluating The Impact Of Building Information Modeling (BIM) On Construction 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6...Building Owners and Managers Association ASC Associated Schools of Construction AtoN Aids to Navigation (USCG) BEP Business Enterprise Priority

  15. High-Rise Building: Function, Construction, Visual Image

    OpenAIRE

    Ozola, S

    2016-01-01

    Nowadays building achievements are characterized by engineering-technically complex buildings. Construction of tower buildings was already familiar during the antiquity and also in the territory of Latvia, where towers on the Baltic tribes’ hillforts guarded fortified wooden construction complexes. German knights started to build freestanding stone tower-castles in the conquered lands which were gradually included in the fortress building. The medieval city was surrounded by a defensive wall ...

  16. Delays in Building Construction Projects in Ghana

    Directory of Open Access Journals (Sweden)

    Adwoa B Agyakwah-Baah

    2010-07-01

    Full Text Available This study investigates the causes of delay of building construction projects in Ghana to determine the most important according to the key project participants; clients, consultants, and contractors. Thirty-two possible causes of delay were identified from the literature and semi-structured interviews of 15 key players in the implementation process. These delay factors were further categorised into nine major groups. The list of delay causes was subjected to a questionnaire survey for the identification of the most important causes of delay. The field survey included 130 respondents made up of 39 contractors, 37 clients and 54 consultants. The relative importance of the individual causes and the groups were calculated and ranked by their relative importance index. The overall results of the study indicate that the respondents generally agree that financial group factors ranked highest among the major factors causing delay in construction projects in Ghana. The financial group factors were delay in honouring payment certificates, difficulty in accessing credit and fluctuation in prices. Materials group factors are second followed by scheduling and controlling factors.

  17. Wood: a construction material for tall buildings

    Science.gov (United States)

    Wimmers, Guido

    2017-12-01

    Wood has great potential as a building material, because it is strong and lightweight, environmentally friendly and can be used in prefabricated buildings. However, only changes in building codes will make wood competitive with steel and concrete.

  18. Wood and Other Materials Used to Construct Nonresidential Buildings - Canada

    Science.gov (United States)

    David B. McKeever; Joe Elling

    2014-01-01

    Low-rise nonresidential building construction is an important market in Canada for lumber, engineered wood products, structural wood panels, and nonstructural wood panels. This report examines wood products consumption in 2012 for construction of selected low-rise nonresidential buildings types that have six or fewer stories. Buildings with more than six stories are...

  19. Sustainable technologies for the building construction industry

    Energy Technology Data Exchange (ETDEWEB)

    Vanegas, J.A.; DuBose, J.R.; Pearce, A.R. [Georgia Institute of Technology, Atlanta, GA (United States)

    1995-12-31

    As the dawn of the twenty-first century approaches, the current pattern of unsustainable, inequitable and unstable asymmetric demographic and economic growth has forced many segments of society to come together in facing a critical challenge: how can societies across the world meet their current basic human needs, aspirations and desires, without compromising the ability of future generations to meet their own needs? At the core of this challenge is the question: how can the human race maintain in perpetuity a healthy, physically attractive and biologically productive environment. The development path that we have been taking, in the past few centuries, has been ultimately detrimental to the health of our surrounding ecological context. We are consuming an increasing share of the natural resources available to use on this planet, and we are creating sufficiently large amounts of waste and pollution such that the earth can no longer assimilate our wastes and recover from the negative impacts. This is a result of a growing population as well as new technologies which make it easier for use to access natural resources and also require the consumption of more resources. Unsustainable technology has been the result of linear rather than cyclic thinking. The paradigm shift from linear to cyclic thinking in technological design is the crux of the shift from unsustainability to sustainability. This paper discusses the implications for the building design and construction industries. Strategies, technologies, and opportunities are presented to improve the sustainability of the built environment.

  20. Delivering construction projects using innovative building technologies

    CSIR Research Space (South Africa)

    Ampofo-Anti, Naalamkai

    2017-07-01

    Full Text Available This paper presents a project delivery model developed for use by public sector clients tasked with using innovative building technologies (IBTs) in lieu of conventional building technologies (CBTs) in the delivery of social infrastructure projects....

  1. Vacuum Insulation Panels Applied in Building Constructions

    NARCIS (Netherlands)

    Tenpierik, M.J.

    2010-01-01

    Due to sustainability and due to international treaties, it is desired and required to reduce greenhouse gas emissions drastically. One contributor to these emissions is the burning of fossil fuels for generating power and electricity to be used in and for buildings. Buildings and building-related

  2. IT-investigation in the building construction industry

    DEFF Research Database (Denmark)

    Sørensen, Lars Schiøtt

    1995-01-01

    An investigation of the level of computing in the Danish construction industry. A quantitative and qualitative level was stated among architects, engineers, building owners, contractors a.o. use of computing......An investigation of the level of computing in the Danish construction industry. A quantitative and qualitative level was stated among architects, engineers, building owners, contractors a.o. use of computing...

  3. Appraisal of systematic training practices by building construction ...

    African Journals Online (AJOL)

    ... the practice of systematic training of building construction workers. This study shows that systematic training of building construction workers serves a means of maintaining standards and ensuring that those who are newly engaged into existing jobs and practices are able to adapt quickly. Key words: Systematic training, ...

  4. Industrial robots application in the construction of buildings and structures

    Directory of Open Access Journals (Sweden)

    Verzhbovskiy Gennady

    2017-01-01

    Full Text Available Proposals on the use of modernized industrial robots in the construction of low-rise buildings are formulated. The necessary parameters of such a mechanism are established. The time necessary for building the walls of a two-story house is determined. Features of the robots use on the construction site are described.

  5. Pattern of accidents in building construction sites in Obio Akpor ...

    African Journals Online (AJOL)

    Background: Building construction workers are engaged in a dangerous job, exposing them to an array of hazards. Construction accidents cause deaths, injuries and economic loss each year. The leading cause building site accidents include falls from unsafe working conditions and scaffolding. This study was to determine ...

  6. 2nd International Conference on Construction and Building Research

    CERN Document Server

    Fernández-Plazaola, Igor; Hidalgo-Delgado, Francisco; Martínez-Valenzuela, María; Medina-Ramón, Francisco; Oliver-Faubel, Inmaculada; Rodríguez-Abad, Isabel; Salandin, Andrea; Sánchez-Grandia, Rafael; Tort-Ausina, Isabel; Construction and Building Research

    2014-01-01

    Many areas of knowledge converge in the building industry and therefore research in this field necessarily involves an interdisciplinary approach. Effective research requires strong relations between a broad variety of scientific and technological domains and more conventional construction or craft processes, while also considering advanced management processes, where all the main actors permanently interact. This publication takes an interdisciplinary approach grouping various studies on the building industry chosen from among the works presented for the 2nd International Conference on Construction and Building Research. The papers examine aspects of materials and building systems; construction technology; energy and sustainability; construction management; heritage, refurbishment and conservation. The information contained within these pages may be of interest to researchers and practitioners in construction and building activities from the academic sphere, as well as public and private sectors.

  7. Cost-derived indices for building design and construction ...

    African Journals Online (AJOL)

    predict fairly accurately the actual building costs. Also as multiples of gfi, substructure cost index, sci and roofing cost index, rci could predict componental costs of substructure and roofing for phased development purposes. Keywords: Cost Indices, Building Design, Building Construction Journal of Modeling, Design and ...

  8. Environmental and Energy Aspects of Construction Industry and Green Buildings

    Science.gov (United States)

    Kauskale, L.; Geipele, I.; Zeltins, N.; Lecis, I.

    2017-04-01

    Green building is an important component of sustainable real estate market development, and one of the reasons is that the construction industry consumes a high amount of resources. Energy consumption of construction industry results in greenhouse gas emissions, so green buildings, energy systems, building technologies and other aspects play an important role in sustainable development of real estate market, construction and environmental development. The aim of the research is to analyse environmental aspects of sustainable real estate market development, focusing on importance of green buildings at the industry level and related energy aspects. Literature review, historical, statistical data analysis and logical access methods have been used in the research. The conducted research resulted in high environmental rationale and importance of environment-friendly buildings, and there are many green building benefits during the building life cycle. Future research direction is environmental information process and its models.

  9. Knowledge transfer from building operation to construction

    DEFF Research Database (Denmark)

    Jensen, Per Anker; Chatzilazarou, Stamatia

    2017-01-01

    Purpose: To investigate how knowledge that derives from operation and maintenance of buildings can be stored and transferred in order to be reused in a future building project? Design/methodology/approach: The paper is theoretically based on knowledge management with a particular focus...... different tools and adopted several processes, aiming to the integration of the knowledge they possess from many years of operation and maintenance of the existing buildings. However, there are many situations, where the tools and processes do not work efficiently, and therefore the knowledge transfer...... on interdepartmental knowledge transfer between departments responsible for operation and management and departments responsible for building projects in organisations with large and fast changing building portfolios. The paper includes a case study of the FM organisation of the Technical University of Denmark...

  10. Research Progress of Building Materials Used in Construction Land

    Science.gov (United States)

    Niu, Yan

    2018-01-01

    Construction land preparation is an important aspect of land remediation project. The research of materials in the process of land improvement is the foundation and the core. Therefore, it is necessary to study the materials that may be involved in the process of building land preparation. In this paper, the research on the construction materials such as recycled concrete, geosynthetics, soil stabilizers, soil improvers, building insulation materials and inorganic fibrous insulation materials, which are commonly used in construction sites, is reviewed and discussed in this paper. Land remediation project involved in the construction of land materials to provide reference.

  11. Green Building Construction Thermal Isolation Materials (Rockwool)

    OpenAIRE

    M. Itewi

    2011-01-01

    Problem statement: Building insulation consisting roughly to anything in a structure that is utilizes as insulation for any reason. Thermal insulation in structures is a significant feature to attaining thermal comfort for its tenants. Approach: Insulation decreases unnecessary warmth loss or gain and can reduce the power burdens of heating and cooling structures. It does not automatically having anything to do with problems of sufficient exposure to air and might or might...

  12. Experimental Modal Analysis on Vibrations in the Building Construction

    OpenAIRE

    成瀬, 治興; 佐野, 泰之; 北畠, 弘基

    1996-01-01

    This paper describes some results of vibration propagation characteristics of two rooms next door to each other in the actual building construction (including floor, walls, and upstairfloor) by experimental modal analysis. In addition, we investigate about vibration response of measuring points by forced response and sensitivity analysis. The results are summarized as follows. The vibration of lower modes gives larger effect to vibration propagation characteristics of building construction th...

  13. 29 CFR 779.335 - Sales of building materials for residential or farm building construction.

    Science.gov (United States)

    2010-07-01

    ... residential or farm building, repair or maintenance is not a sale for resale, provided, the sale is otherwise... 29 Labor 3 2010-07-01 2010-07-01 false Sales of building materials for residential or farm building construction. 779.335 Section 779.335 Labor Regulations Relating to Labor (Continued) WAGE AND...

  14. New constructive solutions for building of transport construction facilities

    Directory of Open Access Journals (Sweden)

    Babayev Vladimir

    2017-01-01

    Full Text Available New structural systems for civil and transport engineering were examined. The basis for the formation of the proposed reinforced concrete structures is the ideology of reducing its dead weight, with a given bearing capacity, the realization of which is accomplished by burial during concreting large-sized liners of a given shape and manufactured from lightweight, inexpensive composite materials. The process of erecting these systems is presented in two forms: for flat structures - using self-tightening concrete, and for curvilinear ones - by using shotcrete technologies. The second direction is presented by steel-reinforced concrete structures. These structural systems were created on the basis of innovative component and methods of rationalization of parameters. The basis of the above methods is a compiler which includes the finite element method, adaptive evolution method and special iterative procedures. Experimental verification of structural solutions and formation procedures for suggested systems was performed. Comparison between theoretical and experimental data is given. Suggested systems were implemented in a number of building companies.

  15. Assessing the service life of building envelope constructions

    DEFF Research Database (Denmark)

    Rudbeck, Claus Christian

    1999-01-01

    During the last 10 years, national standards have been developed in order to assess the expected service life of building materials and constructions and work is still progressing on the international level. Besides the current and upcoming standards, several methodologies have been developed...... construction or for assessing the performance over time of building constructions in the building envelope. A review is provided that contrast the less practical against the more useful aspects of national and international standards. The second gives suggestions as to those methodologies that potentially can...... or suggested at the national, international or individual level. The overview provided in this paper focuses on two two items: The first describes the current methods or standards established at a national level for either assessing and implementing service life requirements in the design stage of a building...

  16. Self-Organized Construction with Continuous Building Material

    DEFF Research Database (Denmark)

    Heinrich, Mary Katherine; Wahby, Mostafa; Divband Soorati, Mohammad

    2016-01-01

    Self-organized construction with continuous, structured building material, as opposed to modular units, offers new challenges to the robot-based construction process and lends the opportunity for increased flexibility in constructed artifact properties, such as shape and deformation. As an example...... investigation, we look at continuous filaments organized into braided structures, within the context of bio-hybrids constructing architectural artifacts. We report the result of an early swarm robot experiment. The robots successfully constructed a braid in a self-organized process. The construction process can...... be extended by using different materials and by embedding sensors during the self-organized construction directly into the braided structure. In future work, we plan to apply dedicated braiding robot hardware and to construct sophisticated 3-d structures with local variability in patterns of filament...

  17. PERCEPTION OF BUILDING CONSTRUCTION WORKERS TOWARDS SAFETY, HEALTH AND ENVIRONMENT

    Directory of Open Access Journals (Sweden)

    C.R. CHE HASSAN

    2007-12-01

    Full Text Available The construction industry is known as one of the most hazardous activities. Therefore, safety on the job site is an important aspect with respect to the overall safety in construction. This paper assesses the safety level perception of the construction building workers towards safety, health and environment on a construction job site in Kuala Lumpur, Malaysia. The above study was carried out by choosing 5 selected large building construction projects and 5 small building construction projects respectively in and around Kuala Lumpur area. In the present study, an exhaustive survey was carried out in these 10 project site areas using a standard checklist and a detailed developed questionnaire. The checklist comprised 17 divisions of safety measurements which are considered and perceived to be important from the safety point of view and was assessed based on the score obtained. The questionnaire comprised the general information with 36 safety attitude statements on a 1-5 Likert scale which was distributed to 100 construction workers. The results of the checklist show the difference of safety levels between the large and small projects. The study revealed that the large projects shown a high and consistent level in safety while the small projects shown a low and varied safety levels. The relationship between the factors can be obtained from the questionnaire. They are organizational commitment, factor influencing communication among workmates, worker related factors, personal role and supervisors’ role factors, obstacles to safety and safe behavior factors and management commitment at all levels in line with the management structure and risk taking behavioral factors. The findings of the present study revealed invaluable indications to the construction managers especially in improving the construction workers’ attitude towards safety, health and environment and hence good safety culture in the building construction industries.

  18. Sustainable construction building performance simulation and asset and maintenance management

    CERN Document Server

    2016-01-01

    This book presents a collection of recent research works that highlight best practice solutions, case studies and practical advice on the implementation of sustainable construction techniques. It includes a set of new developments in the field of building performance simulation, building sustainability assessment, sustainable management, asset and maintenance management and service-life prediction. Accordingly, the book will appeal to a broad readership of professionals, scientists, students, practitioners, lecturers and other interested parties.

  19. Carbon footprint of construction using industrialised building system

    Science.gov (United States)

    Lim, P. Y.; Yahya, K.; Aminudin, E.; Zakaria, R.; Haron, Z.; Mohamad Zin, R.; Redzuan, A. A. H.

    2017-11-01

    Industrialised Building System (IBS) is more sustainable to the environment as compared to the conventional construction methods. However, the construction industry in Malaysia has low acceptance towards IBS due to the resistance to change and also lack of awareness towards sustainability development. Therefore, it is important to study the amount carbon footprint produced by IBS during its manufacturing and construction stage, and also the amount of carbon footprint produced by one meter square of gross floor area of IBS construction using Life Cycle Assessment (LCA) to ease future research through the comparison of the carbon footprint of IBS with the conventional building system. As a result, a case study on a residential type of construction in the vicinity of Johor Bahru, Malaysia was carried out to obtain the necessary data and result. From the data analysis, the amount of greenhouse gases (GHG) for a residential type IBS construction based on the raw materials and resources involved to manufacture and construct IBS components is 0.127 tonnes fossil CO2Eq per meter square. Raw material that contributed to the most amount of carbon footprint is Ordinary Portland Cement (OPC), followed by steel bars, autoclaved aerated blocks and diesel. The LCA data acquired will be very useful in implementing IBS in the residential type construction. As a result, the awareness towards sustainable construction using IBS can be improved.

  20. VARIANT FOR CONSTRUCTION, REPAIR OR RECONSTRUCTION OF BUILDING

    Directory of Open Access Journals (Sweden)

    S. N. Osipov

    2016-01-01

    Full Text Available In the XXI century moral depreciation concept comprises not only deterioration of outside appearance of construction elements in the course of time but accelerated fashion changes in respect of interior design and rapid increase in technical level for residence buildings. For this reason if average rate of building dilapidation in the buildings of series 1–335, 1–335А and 1–464А constructed in Minsk within the period of 1957–1975 and being operated till 2005–2006 has constituted 25–29 % and their moral depreciation has been equal to more than 40 % then rate of the moral depreciation has significantly increased in the XXI century. Such situation requires execution of special investigations. High operating rates of refinancing have led to the necessity for record keeping of initial expenses and repairability levels because selection of building construction, repair or reconstruction variant depends on these parameters. Repairability classification of main elements of residence buildings and premises has been proposed for regulation of such selection procedure. In this case it is recommended to take into account technological effectiveness of repair and technical service, verifiability, accessibility, easy dismountability, substitutability and interchangeability of construction elements and technical devices. The paper presents nomograms that permit to make easier practical calculations on determination of cost-efficient time period for operation of the element prior to its substitution at various refinancing rates and also for comparison of relative initial expenses according to time service. 

  1. Thermal Bridges in Building Construction - Measurements and Calculations

    DEFF Research Database (Denmark)

    Rose, Jørgen

    The thesis investigates detailed calculation methods for evaluating heat loss through building envelope constructions, or more specific, thermal bridges. First a detailed description of the calculation methods, i.e. both calculation programs and guidelines, for calculating typical thermal bridges...... in building envelope constructions is given. After this a validation of both programs and guidelines is presented. The validation is performed by comparing calculated U-values with Guarded Hot Box measurements. The last part of the thesis discusses the possibilities of utilising the results of detailed...

  2. Lifting Wing in Constructing Tall Buildings —Aerodynamic Testing

    Directory of Open Access Journals (Sweden)

    Ian Skelton

    2014-05-01

    Full Text Available This paper builds on previous research by the authors which determined the global state-of-the-art of constructing tall buildings by surveying the most active specialist tall building professionals around the globe. That research identified the effect of wind on tower cranes as a highly ranked, common critical issue in tall building construction. The research reported here presents a design for a “Lifting Wing,” a uniquely designed shroud which potentially allows the lifting of building materials by a tower crane in higher and more unstable wind conditions, thereby reducing delay on the programmed critical path of a tall building. Wind tunnel tests were undertaken to compare the aerodynamic performance of a scale model of a typical “brick-shaped” construction load (replicating a load profile most commonly lifted via a tower crane against the aerodynamic performance of the scale model of the Lifting Wing in a range of wind conditions. The data indicate that the Lifting Wing improves the aerodynamic performance by a factor of up to 50%.

  3. Safety concerns related to modular/prefabricated building construction.

    Science.gov (United States)

    Fard, Maryam Mirhadi; Terouhid, Seyyed Amin; Kibert, Charles J; Hakim, Hamed

    2017-03-01

    The US construction industry annually experiences a relatively high rate of fatalities and injuries; therefore, improving safety practices should be considered a top priority for this industry. Modular/prefabricated building construction is a construction strategy that involves manufacturing of the whole building or some of its components off-site. This research focuses on the safety performance of the modular/prefabricated building construction sector during both manufacturing and on-site processes. This safety evaluation can serve as the starting point for improving the safety performance of this sector. Research was conducted based on Occupational Safety and Health Administration investigated accidents. The study found 125 accidents related to modular/prefabricated building construction. The details of each accident were closely examined to identify the types of injury and underlying causes. Out of 125 accidents, there were 48 fatalities (38.4%), 63 hospitalized injuries (50.4%), and 14 non-hospitalized injuries (11.2%). It was found that, the most common type of injury in modular/prefabricated construction was 'fracture', and the most common cause of accidents was 'fall'. The most frequent cause of cause (underlying and root cause) was 'unstable structure'. In this research, the accidents were also examined in terms of corresponding location, occupation, equipment as well as activities during which the accidents occurred. For improving safety records of the modular/prefabricated construction sector, this study recommends that future research be conducted on stabilizing structures during their lifting, storing, and permanent installation, securing fall protection systems during on-site assembly of components while working from heights, and developing training programmes and standards focused on modular/prefabricated construction.

  4. Transformation of Malaysian Construction Industry with Building Information Modelling (BIM

    Directory of Open Access Journals (Sweden)

    Latiffi Aryani Ahmad

    2016-01-01

    Full Text Available Building Information Modelling (BIM is a revolution of technology and a process that transformed the way building is planned, designed, analysed, constructed and managed. The revolution of technology and process could increase the quality of construction projects. The knowledge of BIM has been expanding in many countries including Malaysia. Since its inception, the use of BIM has broadened up widely with different purposes. The aims of this paper is to investigate the BIM implementation and uses in Malaysian construction projects. The methodologies adopted for structuring this paper are by using literature review and semi-structured interview with construction players that have experienced and being involved in projects using BIM. The purpose of literature review is to illustrate on the pervious research on the subject matter. Meanwhile, the purpose of interviews is to explore the involvement of construction players, years of experience in projects using BIM and BIM uses in construction projects. The findings revealed that BIM has been implemented in Malaysia since 2007 by various construction players, which are client, architect, C&S engineer, M&E engineer, QS, contractor, facilities manager and BIM consultant. The findings also revealed that BIM is used for project’ visualisation, improving project design, detecting design clashes, quantity take off and operation and maintenance. Further work will be focused on the current practices of construction players in projects using BIM.

  5. PROSPECTS OF ESTABLISHING EARTHQUAKE RESISTANT BUILDINGS FROM TUBE CONCRETE CONSTRUCTIONS

    Directory of Open Access Journals (Sweden)

    Abdujafar I. Akaev

    2017-01-01

    Full Text Available Abstract. Objectives The aim of the research is to find optimal design solutions for the erection of buildings that will ensure their reliability and durability, compliance with environmental requirements, fire resistance and earthquake resistance. In this regard, the task is to determine the advantages and prospects of erecting earthquake resistant buildings from tube concrete constructions, since they are distinct in constructive, technological and economic efficiency when are used as vertical load-bearing struts of high-rise buildings. Method The technique for calculating the strength of normal sections of eccentrically-compressed tube concrete elements uses a nonlinear deformation model, taking into account the joint operation of the steel shell and the concrete core under the conditions of triaxial compression. Results In the article the review of the newest world experience of using tube concrete as vertical load-bearing structures for public facilities from the standpoint of earthquake resistant construction is given. The international practices of public facility construction ranging in height from 100 to 600 m with the use of tube concrete technology, including regions with dangerous natural and man-made conditions, have been studied. The structural, operational and technological advantages and disadvantages of tube concrete technology are analysed. Methods for calculating the strength of concrete tube elements in the case of central compression are considered: according to the so-called deformation theory, the state of total destruction of both concrete and tube fluidity attained at maximum pressure are indicated by the beginning of "tube flow on the longitudinal axis". The advantages and disadvantages of both methods are shown. Factors constraining the introduction and wider application of tube concrete constructions in Russia are considered. Conclusion While the advantages of concrete tube constructions in their extensive

  6. The repetition effect in building and construction works

    DEFF Research Database (Denmark)

    Gottlieb, Stefan Christoffer; Haugbølle, Kim

    This report summarises the results from the work undertaken for the Public Transport Authority on the effect of learning and repetition in building and construction works. The results are applied by the Public Transport Authority in a new budgeting model, while the agency investigates...

  7. ICT in building construction: prospects and challenges in developing ...

    African Journals Online (AJOL)

    Project team structures are complex and sometimes located at different places. It is only the adoption of ICT that can perform the “magic” of effective teamwork, just as the world is now a global village. Keywords: Building, Construction, Globalisation,ICT, Team, Technology. AJOL African Journals Online. HOW TO USE AJOL.

  8. Building a List of Journals with Constructed Impact Factors.

    Science.gov (United States)

    Stegmann, Johannes

    1999-01-01

    Describes the building of a list of constructed-impact factors (CIF) for biomedical journals not included in the 1996 editions of the "Journal Citation Reports." The online retrieval from the host DIMDI of the data needed for impact-factor calculation is described. The top 100 (of 338 titles, ranked according to their CIFs) are…

  9. Green building and construction worker ergonomics: a pilot ...

    African Journals Online (AJOL)

    Green building and construction worker ergonomics: a pilot investigation. ... Two descriptive surveys were conducted among general contractor members of the East Cape Masters Builders Association (ECMBA) and members of the Eastern Cape Institute of Architects (ECIA) using self-administered questionnaires.

  10. An effective release process in building and construction

    NARCIS (Netherlands)

    Reefman, R.J.B.; Van Nederveen, G.A.

    2011-01-01

    The level of failure costs in Building and Construction is still at a high level. A major cause of failure costs is the use non valid or wrong documents / models in the process. The release process is about controlling the quality of documents / models in a structured way. The major three attributes

  11. An Assessment Of Compliance Of Building Construction Projects ...

    African Journals Online (AJOL)

    Nigeria recorded and has continued to witness collapse of structures in recent times, most of which are building structures characterized with eventual loss of life and property. The rigorous construction activities in Nigeria bear direct and indirect impacts on the environment by displacement of communities and destruction of ...

  12. Apprenticeship Bullying in the Building and Construction Industry

    Science.gov (United States)

    Riggall, Michaela; Skues, Jason; Wise, Lisa

    2017-01-01

    Purpose: The purpose of this paper is to explore the definition, prevalence, antecedents, consequences and coping behaviours associated with apprenticeship bullying in the building and construction industry. Design/methodology/approach: The sample comprises 13 participants aged between 22 and 27 (M = 23.8, SD = 1.26) who were all men who had…

  13. Push an pull forces in the building and construction industry

    NARCIS (Netherlands)

    Frings-Dresen, M. H. W.; Windhorst, Judith; Hoozemans, M. J M; Van Der Beek, Allard J.; Van der Molen, Henk F.

    2000-01-01

    Push and pull activities are increasing in the building and construction industry. These activities can be assumed as one of the risk factors for the development of low back and upper extremity complaints. For a risk evaluation, besides the frequency and the duration of the activities, information

  14. Evaluation of Passive Vents in New Construction Multifamily Buildings

    Energy Technology Data Exchange (ETDEWEB)

    Maxwell, Sean [Steven Winter Associates, Norwalk, CT (United States); Berger, David [Steven Winter Associates, Norwalk, CT (United States); Zuluaga, Marc [Steven Winter Associates, Norwalk, CT (United States)

    2016-02-01

    Exhaust ventilation and corresponding outdoor air strategies are being implemented in high performance, new construction, multifamily buildings to meet program or code requirements for improved indoor air quality, but a lack of clear design guidance is resulting in poor performance of these systems despite the best intentions of the programs or standards.

  15. Y-12 Sustainable Design Principles for Building Design and Construction

    Energy Technology Data Exchange (ETDEWEB)

    Jackson, J. G.

    2008-11-01

    B&W Y-12 is committed to modernizing the Y-12 complex to meet future needs with a sustainable and responsive infrastructure and to integrating sustainability principles and practices into Y-12 work (Y72-001, B&W Y-12 Environmental, Safety and Health Policy). This commitment to sustainability and specifically sustainable design of buildings is also incorporated into Presidential Executive Orders (EO), DOE Orders (DOE O), and goals. Sustainable building design is an approach to design, construct, and operate facilities in an efficient and environmentally sound manner that will produce a healthful, resource-efficient and productive working environment that is inherently protective of the environment. The DOE has established the following 5 Guiding Principles for High Performance Sustainable Building (HPSB), and has issued directives that require Y-12 to incorporate the principles and a number of supporting specific practices and techniques into building design, construction and renovation projects: (1) Employ Integrated Design Principles; (2) Optimize Energy Performance; (3) Protect and Conserve Water; (4) Enhance Indoor Environmental Quality; and (5) Reduce Environmental Impact of Materials. The purpose of this document is to present the required sustainable building principles, practices and techniques, summarize the key drivers for incorporating them into Y-12 projects, and present additional recommendations and resources that can be used to support sustainable buildings to enhance the environmental and economic performance of the Y-12 Complex.

  16. Potential and Benefits of Building Information Modeling (BIM During Pre-Construction, Construction and Post Construction Stage

    Directory of Open Access Journals (Sweden)

    Aw Nien Wei

    2017-11-01

    Full Text Available The construction industry is the main economic support for all countries around the world in which continually adapting to meet competitive challenges around the global market. Nevertheless, the construction project is becoming much more complex and difficult to manage. This is because the construction project involves a large number of stakeholder, for example, the consultant companies, architects, engineers, building surveyors and quantity surveyors. The technology currently used in the construction industry is the AutoCAD (Automatic computeraided design. AutoCAD is a commercial software application for 2D and 3D computer-aided design (CAD and drafting develop by Autodesk. Generally, all the drawing design from Autocad will be exchanged among the stakeholder in the form of paper. Information exchanged among them mostly involves a lot of documents and drawings. This practice creates errors because of documents and drawings are mostly in a paper-based format that is not properly managed which results in miscommunication among them. Having wrong information in the construction process could hinder the productivity of projects because in a construction project information is one of the important construction materials. Building Information Modeling (BIM is one of the newly software in the architecture, engineering, and construction (AEC industries to ensure all parties receive the right information. BIM technology is also an intelligent model of a building constructed digitally in the way of 3D. The software will generate model containing the information needed to support the construction, fabrication, and procurement activities that needed to realize the building. This paper will discuss on potential and benefits of BIM during pre-construction stage, construction stage and during post construction stage

  17. Research methods of the parameters of residential buildings construction

    Directory of Open Access Journals (Sweden)

    Grigor’ev Vladimir Aleksandrovich

    Full Text Available The analysis of construction theory and practice shows that rational organizational and technological parameters of the construction of residential buildings should be based on the manifestation in time and space of the most important stages construction with their harmonization. Basing on the experience of normalizing the construction duration, it is advisable to express the complex of residential buildings’ construction processes by their basic stages - preparatory period, underground part, aboveground part, external engineering networks and land improvement. The main indicators of the development and implementation of optimization solutions are: the total duration of the construction, the duration of the preparation period, the duration of the construction of the underground part, the duration of the construction of the aboveground part, the duration of external engineering networks laying, the duration of land improvement. The indicators of the total duration of the construction of residential buildings, the construction the underground and aboveground parts are determined on the basis of the operation of one assembly crane on an object of up to four sections. In case of more sections two (three cranes are considered and the total construction duration is set depending on these conditions. The duration of the construction of multisectional buildings is determined basing on the simultaneous construction of the stages or their combination with a certain time shift. However, this approach requires a significant amount of optimization solutions due to its multivariance. Therefore, in order to reduce the volume of calculations in some cases, for example, when planning the development of districts and neighborhoods, statistical methods can be used for determining the duration of the construction basing on the compilation of optimization solutions. The total duration of the construction and the duration of the main stages are multiple

  18. The future obligations of "project manager" as construction integral director (DIPE) in the law of buildings construction in spain (LOE)

    OpenAIRE

    Soler Severino, Manuel Jose; Rubio Landart, Jaime

    2012-01-01

    In the year 1999 approves the Law of Construction Building (LOE, in Spanish) to regulate a sector such as construction, which contained some shortcomings from the legal point of view. Currently, the LOE has been in force 12 years, changing the spanish world of the construction, due to influenced by internationalization. Within the LOE, there regulating the different actors involved in the construction building, as the Projects design, the Director of Construction, the developer, The build...

  19. Photocatalytic construction and building materials: From fundamentals to applications

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Jun; Poon, Chi-sun [Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hum Hom (China)

    2009-09-15

    Heterogeneous photocatalysis has been intensively studied in recent decades because it only requires photonic energy to activate the chemical conversion contrasting with conventional catalysis which needs heat for thermo-activation. Over the years, the theories for photochemical activity of photocatalyst including photo-induced redox reaction and super-hydrophilic conversion of TiO{sub 2} itself have been established. The progress in academic research significantly promotes its practical applications, including the field of photocatalytic construction and building materials. TiO{sub 2} modified building materials are most popular because TiO{sub 2} has been traditionally used as a white pigment. The major applications of TiO{sub 2} based photocatalytic building materials include environmental pollution remediation, self-cleaning and self-disinfecting. The advantage of using solar light and rainwater as driving force has opened a new domain for environmentally friendly building materials. In this paper, the basic reaction mechanisms on photocatalyst surface under the irradiation of ultraviolet and their corresponding applications in building and construction materials are reviewed. The problems faced in practical applications and the trends for future development are also discussed. (author)

  20. IMPROVING TRADITIONAL BUILDING REPAIR CONSTRUCTION QUALITY USING HISTORIC BUILDING INFORMATION MODELING CONCEPT

    Directory of Open Access Journals (Sweden)

    T. C. Wu

    2013-07-01

    Full Text Available In addition to the repair construction project following the repair principles contemplated by heritage experts, the construction process should be recorded and measured at any time for monitoring to ensure the quality of repair. The conventional construction record methods mostly depend on the localized shooting of 2D digital images coupled with text and table for illustration to achieve the purpose of monitoring. Such methods cannot fully and comprehensively record the 3D spatial relationships in the real world. Therefore, the construction records of traditional buildings are very important but cannot function due to technical limitations. This study applied the 3D laser scanning technology to establish a 3D point cloud model for the repair construction of historical buildings. It also broke down the detailed components of the 3D point cloud model by using the concept of the historic building information modeling, and established the 3D models of various components and their attribute data in the 3DGIS platform database. In the construction process, according to the time of completion of each stage as developed on the construction project, this study conducted the 3D laser scanning and database establishment for each stage, also applied 3DGIS spatial information and attribute information comparison and analysis to propose the analysis of differences in completion of various stages for improving the traditional building repair construction quality. This method helps to improve the quality of repair construction work of tangible cultural assets of the world. The established 3DGIS platform can be used as a power tool for subsequent management and maintenance.

  1. Improving Traditional Building Repair Construction Quality Using Historic Building Information Modeling Concept

    Science.gov (United States)

    Wu, T. C.; Lin, Y. C.; Hsu, M. F.; Zheng, N. W.; Chen, W. L.

    2013-07-01

    In addition to the repair construction project following the repair principles contemplated by heritage experts, the construction process should be recorded and measured at any time for monitoring to ensure the quality of repair. The conventional construction record methods mostly depend on the localized shooting of 2D digital images coupled with text and table for illustration to achieve the purpose of monitoring. Such methods cannot fully and comprehensively record the 3D spatial relationships in the real world. Therefore, the construction records of traditional buildings are very important but cannot function due to technical limitations. This study applied the 3D laser scanning technology to establish a 3D point cloud model for the repair construction of historical buildings. It also broke down the detailed components of the 3D point cloud model by using the concept of the historic building information modeling, and established the 3D models of various components and their attribute data in the 3DGIS platform database. In the construction process, according to the time of completion of each stage as developed on the construction project, this study conducted the 3D laser scanning and database establishment for each stage, also applied 3DGIS spatial information and attribute information comparison and analysis to propose the analysis of differences in completion of various stages for improving the traditional building repair construction quality. This method helps to improve the quality of repair construction work of tangible cultural assets of the world. The established 3DGIS platform can be used as a power tool for subsequent management and maintenance.

  2. Embedded Sensor System for Early Pathology Detection in Building Construction

    OpenAIRE

    Torres, Santiago J. Barro; Cascon, Carlos J. Escudero

    2009-01-01

    Structure pathology detection is an important security task in building construction, which is performed by an operator by looking manually for damages on the materials. This activity could be dangerous if the structure is hidden or difficult to reach. On the other hand, embedded devices and wireless sensor networks (WSN) are becoming popular and cheap, enabling the design of an alternative pathology detection system to monitor structures based on these technologies. This article introduces a...

  3. Modeling Manpower and Equipment Productivity in Tall Building Construction Projects

    Science.gov (United States)

    Mudumbai Krishnaswamy, Parthasarathy; Rajiah, Murugasan; Vasan, Ramya

    2017-12-01

    Tall building construction projects involve two critical resources of manpower and equipment. Their usage, however, widely varies due to several factors affecting their productivity. Currently, no systematic study for estimating and increasing their productivity is available. What is prevalent is the use of empirical data, experience of similar projects and assumptions. As tall building projects are here to stay and increase, to meet the emerging demands in ever shrinking urban spaces, it is imperative to explore ways and means of scientific productivity models for basic construction activities: concrete, reinforcement, formwork, block work and plastering for the input of specific resources in a mixed environment of manpower and equipment usage. Data pertaining to 72 tall building projects in India were collected and analyzed. Then, suitable productivity estimation models were developed using multiple linear regression analysis and validated using independent field data. It is hoped that the models developed in the study will be useful for quantity surveyors, cost engineers and project managers to estimate productivity of resources in tall building projects.

  4. Evaluation of Ventilation Strategies in New Construction Multifamily Buildings

    Energy Technology Data Exchange (ETDEWEB)

    Maxwell, S.; Berger, D.; Zuluaga, M.

    2014-07-01

    In multifamily buildings, particularly in the Northeast, exhaust ventilation strategies are the norm as a means of meeting both local exhaust and whole-unit mechanical ventilation rates. The issue of where the 'fresh' air is coming from is gaining significance as air-tightness standards for enclosures become more stringent, and the 'normal leakage paths through the building envelope' disappear. CARB researchers have found that the majority of high performance, new construction, multifamily housing in the Northeast use one of four general strategies for ventilation: continuous exhaust only with no designated supply or make-up air source, continuous exhaust with ducted make-up air to apartments, continuous exhaust with supply through a make-up air device integral to the unit HVAC, and continuous exhaust with supply through a passive inlet device, such as a trickle vent. Insufficient information is available to designers on how these various systems are best applied. Product performance data are based on laboratory tests, and the assumption is that products will perform similarly in the field. Proper application involves matching expected performance at expected building pressures, but there is no guarantee that those conditions will exist consistently in the finished building. This research effort, which included several weeks of building pressure monitoring, sought to provide field validation of system performance. The performance of four substantially different strategies for providing make-up air to apartments was evaluated.

  5. New instruments for dynamic building-construction : Computer as partner in construction

    NARCIS (Netherlands)

    van Rees, R.

    2007-01-01

    For dynamic processes to become possible in Building-Construction, ICT support is needed. Data access and data exchange needs to be ubiquitous. Existing research often only targets elaborate international standards (that don't really get off the ground because of international differences) or it

  6. Building Essential Skills for the Ohio Building and Construction Industry. Final Report.

    Science.gov (United States)

    Pritz, Sandra G.; And Others

    The Center on Education and Training for Employment (CETE) at the Ohio State University worked in partnership with the Ohio State Building and Construction Trades Council (OSB&CT) to develop and deliver customized workplace literacy services for local union members in six major Ohio cities (Columbus, Cleveland, Cincinnati, Toledo, Dayton, and…

  7. The current state of computing in building design and construction

    DEFF Research Database (Denmark)

    Sørensen, Lars Schiøtt; Andersen, Tom

    1996-01-01

    An exhaustive IT-survey is made in the Danish construction industry in 1995. The outcome of this survey is outlined for a selected number of issues, such as number and types of CAD-systems, data base systems, networking etc. The survey shows, that the use of IT is massive. A detailed investigation...... in relation to AI-based systems is presented. This indicates that AI-based systems/approaches have not yet penetrated in the Danish construction industry. Determinants relevant to technology penetration are described, and the immediate potential for AI-penetration are discussed and compared with the actual...... status. Finally, we conclude that there is a severe lack of awareness about AI-systems in the building sector....

  8. Implementation of building information modeling in Malaysian construction industry

    Science.gov (United States)

    Memon, Aftab Hameed; Rahman, Ismail Abdul; Harman, Nur Melly Edora

    2014-10-01

    This study has assessed the implementation level of Building Information Modeling (BIM) in the construction industry of Malaysia. It also investigated several computer software packages facilitating BIM and challenges affecting its implementation. Data collection for this study was carried out using questionnaire survey among the construction practitioners. 95 completed forms of questionnaire received against 150 distributed questionnaire sets from consultant, contractor and client organizations were analyzed statistically. Analysis findings indicated that the level of implementation of BIM in the construction industry of Malaysia is very low. Average index method employed to assess the effectiveness of various software packages of BIM highlighted that Bentley construction, AutoCAD and ArchiCAD are three most popular and effective software packages. Major challenges to BIM implementation are it requires enhanced collaboration, add work to a designer, interoperability and needs enhanced collaboration. For improving the level of implementing BIM in Malaysian industry, it is recommended that a flexible training program of BIM for all practitioners must be created.

  9. Performance based building design to ensure building quality: from standardization to LEAN construction

    Directory of Open Access Journals (Sweden)

    Carlo Zanchetta

    2014-10-01

    Full Text Available The discipline of architectural design is influenced by the standardization activities concerning the construction and the development of tools for the coordination in the design process such as Building Information Modeling. The two disciplines contribute reciprocally to the achievement of the overall quality of the building process. To do so, it is strategic to develop researches on the following aspects: - definition of frameworks for the connection of the building system requirements to space and technology unit that defines it; - development of an inventory of interoperable and compliant technical solutions; - implementation of the discipline of model checking for project validation; and methodologies of comparison between intervention models; - implementation of collaborative environments for verification of compatibility between programs and regulations in order to identify the optimal design solution.

  10. Evaluation of Passive Vents in New Construction Multifamily Buildings

    Energy Technology Data Exchange (ETDEWEB)

    Maxwell, Sean [Steven Winter Associates, Inc., Norwalk, CT (United States); Berger, David [Steven Winter Associates, Inc., Norwalk, CT (United States); Zuluaga, Marc [Steven Winter Associates, Inc., Norwalk, CT (United States)

    2016-02-01

    Exhaust ventilation and corresponding outdoor air strategies are being implemented in high-performance new construction multifamily buildings to meet program or code requirements for improved indoor air quality, but a lack of clear design guidance is resulting in poor performance of these systems despite the best intentions of the programs or standards. CARB's 2014 'Evaluation of Ventilation Strategies in New Construction Multifamily Buildings' consistently demonstrated that commonly used outdoor air strategies are not performing as expected. Of the four strategies evaluated in 2014, the exhaust ventilation system that relied on outdoor air from a pressurized corridor was ruled out as a potential best practice due to its conflict with meeting requirements within most fire codes. Outdoor air that is ducted directly to the apartments was a strategy determined to have the highest likelihood of success, but with higher first costs and operating costs. Outdoor air through space conditioning systems was also determined to have good performance potential, with proper design and execution. The fourth strategy, passive systems, was identified as the least expensive option for providing outdoor air directly to apartments, with respect to both first costs and operating costs. However, little is known about how they actually perform in real-world conditions or how to implement them effectively. Based on the lack of data available on the performance of these low-cost systems and their frequent use in the high-performance building programs that require a provision for outdoor air, this research project sought to further evaluate the performance of passive vents.

  11. 7 CFR 1792.103 - Seismic design and construction standards for new buildings.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 12 2010-01-01 2010-01-01 false Seismic design and construction standards for new..., REGULATIONS, AND EXECUTIVE ORDERS Seismic Safety of Federally Assisted New Building Construction § 1792.103 Seismic design and construction standards for new buildings. (a) In the design and construction of...

  12. FEATURES APPLICATION OF A CONSTRUCTION METHOD «UP – DOWN» IN THE HIGH-RISE BUILDINGS CONSTRUCTION

    Directory of Open Access Journals (Sweden)

    ZAIATS Y. I.

    2017-01-01

    Full Text Available Formulation of the problem. The present level of construction technology development enhances the choice relevance of the most efficient organizational and technological solutions of high-rise buildings construction. Execution of construction works is associated with many conditions, which greatly complicate their production, which in turn can lead to an actual cost increase of contractors to perform the whole complex of construction works. The process of high-rise buildings construction has specific differences, especially in terms of construction technology and organization, construction-related in conditions of the functioning structures of large cities and the existing infrastructure, the account of which will neutralize or localize the negative impact of destabilizing factors. Therefore, the design of high-rise construction organizations need to consider the influence of various destabilizing factors and implement the most efficient and modern construction methods. Goal. Determination of features and advantages of the method "up - down" in high-rise buildings construction in dense urban areas. Conclusion. Improving of the design solutions efficiency of high-rise buildings construction and their implementation, especially, time and cost reducing of construction, can be achieved by applying the construction method of the "top - down", which requires a higher organization of labor, the use of appropriate construction machinery, equipping and instrumentation, high requirements for health and safety.

  13. EVALUATION OF WOOD PERFORMANCE IN BUILDING CONSTRUCTION THROUGH SYSTEM APPROACH

    Directory of Open Access Journals (Sweden)

    Ricardo Pedreschi

    2005-09-01

    Full Text Available Building construction is considered to be the leading market for the wood industry, in developed and developingcountries. The greatest amount of wood produced in Brazil is consumed as firewood and energy, followed by production of celluloseand third as machined wood. The use of wood from planted forests can be increased. This would lead to a better use of naturalresources, and consequently to an increased sustainability of forest activity in many regions of the country. The performance of woodcan be observed from many different insights: symbolic performance, technical performance and economical performance, conductedby the method of systems approach to architecture. Usages of wood related to the performances of the material, with the redefinitionof parameters of use, elaborating a new culture linked to new technologies were outlined. This work diagnosed the usage of wood inbuilding construction based in system analysis. Through an opinion research related to the acceptation of the use of wood we observethe possibilities of utilization according to physical and mechanical proprieties, aesthetics and appearance performance and postoccupation.According to the results obtained related to the culture and knowledge about the use of wood from planted forest, it canconclude that there is not enough knowledge in this area, and it is, therefore, necessary to create an information system forprofessionals and for people in general.

  14. Building construction in the Netherlands 1940 - 1970 : Continuity + changeability = durability

    NARCIS (Netherlands)

    Zijlstra, H.

    2006-01-01

    The built environment is continuously changing and such changes are particularly important when regenerating buildings. These changes add something to existing buildings and make new programmes possible. The existing buildings - history - determine continuity and form a clear additional,

  15. 76 FR 13329 - Reinstatement of Coverage Pertaining to Final Payment Under Construction and Building Services

    Science.gov (United States)

    2011-03-11

    ... Construction and Building Services AGENCY: Office of Acquisition Policy, General Services Administration (GSA... building service contracts to ensure contractors are paid in accordance with their contract requirements... making final payment under construction and building service contracts. Prior to deleting the form, GSA...

  16. Relations between constructive peculiarities and structural behavior in Venice buildings

    Directory of Open Access Journals (Sweden)

    Doglioni, F.

    2012-12-01

    Full Text Available Here we are synthetically describing some constructive peculiarities of Venice civil buildings, analyzing the relation with the features of their structural decay and behavior in the long run. We suppose Venetian buildings, especially those parts which are conceived to suit the lagoon environment, to have undergone an evolution made of some adjustments, which were based on the observation of damages in previous buildings. That is we suppose ancient builders to rely on their awareness of the behavior of structures yet to come, and to be able to forecast it in part. This process brought some building contrivances to perfection, as exclusive and enduring features of Venice, overcoming changes in style and architectural layout, till they grew into essential elements of a whole and adaptable “device”. This writing is meant for a concise interpretation of this device, which is the result of some research works carried out at Venice IUAV University.

    En este texto, se describen sintéticamente algunas peculiaridades de la edificación residencial de Venecia, analizando su relación con el abanico de problemas estructurales que caracterizan el comportamiento estructural del edificio a lo largo del tiempo. Se aventura la hipótesis que las construcciones venecianas y, en particular, algunos de sus detalles, concebidos específicamente para la laguna donde se enclava, han sido objeto de una adaptación evolutiva a través de la observación de los problemas estructurales de los edificios precedentes. Los alarifes venecianos aprendieron a tener en cuenta el comportamiento estructural posterior del edificio, que previeron en cierta medida. Este proceso ha llevado a perfeccionar algunos detalles constructivos exclusivos de Venecia que han perdurado en el tiempo, que han resistido impertérritos a mutaciones de estilo y de configuración arquitectónica, hasta constituir elementos esenciales de un aparato indivisible y adaptable cuya interpretaci

  17. Analysis of Building Envelope Construction in 2003 CBECS

    Energy Technology Data Exchange (ETDEWEB)

    Winiarski, David W.; Halverson, Mark A.; Jiang, Wei

    2007-06-01

    The purpose of this analysis is to determine "typical" building envelope characteristics for buildings built after 1980. We address three envelope components in this paper - roofs, walls, and window area. These typical building envelope characteristics were used in the development of DOE’s Reference Buildings .

  18. Alteration of granite stone used in building construction

    Directory of Open Access Journals (Sweden)

    Esbert Alemany, R. M.ª

    2007-12-01

    Full Text Available The article contains a synthesis of the different factors involved in the alteration of granite ashlars or cladding used in building construction. Emphasis is placed on the – primarily fissure-like – anisotropies often present in granite, which are usually related to the structural conditions of the quarry where it is mined. Such anisotropies condition the development of certain types of alterations that appear over time, particularly in ashlars. Stone petrography, particularly as regards the chemical composition of the minerals comprising granite, also govern its alteration. Moreover, the commercial term granite often includes other more alkaline rocks generically known as granitoids, whose alterability is higher than in granite per se. The values of some of the physical properties of these rocks, which must be quantified to evaluate their durability, are shown to differ in keeping with their anisotropy. Finally, the forms, causes and mechanisms involved in granite decay are reviewed in the context of its use in building construction.En el artículo se sintetizan los diversos aspectos que inciden en la alteración de las rocas graníticas, cuando estas se utilizan en los edificios, ya sea en forma de sillares o de losetas de revestimiento. Se hace especial hincapié en las anisotropías, fundamentalmente de carácter fisural que suelen presentar los granitos. Estas suelen estar relacionadas con las condiciones estructurales del yacimiento del cual proceden. Dichas anisotropías condicionan el desarrollo de determinadas formas de alteración que con el paso del tiempo se aprecian, sobre todo en los sillares. También se recuerda que la petrografía, y en especial la composición química de los minerales que componen las rocas graníticas, condicionan su alteración, y que dentro del término comercial granito se suelen incluir otras rocas más alcalinas denominadas genéricamente granitoides y más alterables que el granito sensu

  19. Environmental labelling of buildings and construction products: lessons for South Africa from global trends

    CSIR Research Space (South Africa)

    Ampofo-Anti, NL

    2012-07-01

    Full Text Available principles to move from prescriptive towards performance-based standards. This new approach responds to and complements emerging policy trends towards “green” building regulations and mandatory energy labelling of buildings. Construction product certification...

  20. Straw bale: A Waste from Agriculture, a New Construction Material for Sustainable Buildings

    National Research Council Canada - National Science Library

    Chaussinand, Adrien; Scartezzini, J.L; Nik, Vahid

    2015-01-01

    .... Thermal-dynamic results and Life Cycle Assessment conclude that straw bale buildings can be a sustainable alternative in the energy evolution of building construction, due to its low embodied energy...

  1. Post-insulation of Existing Buildings Constructed Between 1850 and 1920

    DEFF Research Database (Denmark)

    Rasmussen, Torben Valdbjørn

    2010-01-01

    ’s requirements. Therefore, there is an increased interest in improving the insulation standard of many existing and older buildings. However, special attention should be paid to prevent degradation of the existing construction when the energy demand for heating and thermal comfort of a building decreases...... building constructed as a typical building constructed in the period of 1850 to 1920. Like many of the existing buildings from that period, this building was recognized as a building with a unique architecture. It is a prerequisite for the improvement of the insulation standard that customized post......Tightened requirements for thermal insulation of new buildings and the demand for a reduction of energy consumption for heating and comfort in order to reduce carbon dioxide (CO2) emissions mean that existing and especially older buildings have a very low thermal standard compared with today...

  2. Trends and Reliance on Foreign Labourers in Malaysia: Conventional Construction versus Industrialized Building System Construction

    Directory of Open Access Journals (Sweden)

    Mydin M.A.O

    2014-01-01

    Full Text Available There has been an influx of foreign labourers in Malaysia over the past decade due to sustained economic growth and a limited labour market. As a long term measure to ensure sustainable growth as well as to minimize socio-economic implications, a medium to longer-term policy on foreign workers will be devised with the goal of reducing overdependence on foreign workers while attracting more skilled and trained professionals. In order to reduce the number of foreign workers, the government has encouraged the implementation of an IBS. An Industrialized Building System (IBS is a construction system in which the components are manufactured in a factory, on or off site, positioned, and assembled into complete structures with minimal additional site work. This research has been carried out to discover trends, whether decreasing or increasing, in the employment of foreign labour in the Malaysian construction industry with reference to the Immigration Department of Malaysia. Additionally, interviews with construction labourers at IBS sites and conventional sites were carried out to identify the number of foreign labourers that are used in such projects.

  3. Construction Management: Building Schools Faster in the International Marketplace

    Science.gov (United States)

    Scarano, Joseph J.

    1976-01-01

    Construction management accelerates school construction, increases quality and labor productivity, lowers costs, and offers developing nations an opportunity to improve their own management capabilities. (MLF)

  4. A method for integrating occupational indoor air quality with building information modeling for scheduling construction activities

    National Research Council Canada - National Science Library

    Altaf, Mohammed Sadiq; Hashisho, Zaher; Hussein, Mohamed Al

    2014-01-01

    ...’ health as construction activities frequently generate airborne pollutants. This paper presents a methodology to predict the concentration of air pollutants during construction activities using building information modeling (BIM...

  5. Flammability tests for regulation of building and construction materials

    Science.gov (United States)

    K. Sumathipala

    2006-01-01

    The regulation of building materials and products for flammability is critical to ensure the safety of occupants in buildings and other structures. The involvement of exposed building materials and products in fires resulting in the loss of human life often spurs an increase in regulation and new test methods to address the problem. Flammability tests range from those...

  6. Energy-Performance-Based Design-Build Process: Strategies for Procuring High-Performance Buildings on Typical Construction Budgets: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Scheib, J.; Pless, S.; Torcellini, P.

    2014-08-01

    NREL experienced a significant increase in employees and facilities on our 327-acre main campus in Golden, Colorado over the past five years. To support this growth, researchers developed and demonstrated a new building acquisition method that successfully integrates energy efficiency requirements into the design-build requests for proposals and contracts. We piloted this energy performance based design-build process with our first new construction project in 2008. We have since replicated and evolved the process for large office buildings, a smart grid research laboratory, a supercomputer, a parking structure, and a cafeteria. Each project incorporated aggressive efficiency strategies using contractual energy use requirements in the design-build contracts, all on typical construction budgets. We have found that when energy efficiency is a core project requirement as defined at the beginning of a project, innovative design-build teams can integrate the most cost effective and high performance efficiency strategies on typical construction budgets. When the design-build contract includes measurable energy requirements and is set up to incentivize design-build teams to focus on achieving high performance in actual operations, owners can now expect their facilities to perform. As NREL completed the new construction in 2013, we have documented our best practices in training materials and a how-to guide so that other owners and owner's representatives can replicate our successes and learn from our experiences in attaining market viable, world-class energy performance in the built environment.

  7. Training program for energy conservation in new-building construction. Volume II. Energy conservation technology: for the building inspector

    Energy Technology Data Exchange (ETDEWEB)

    None

    1977-12-01

    A Model Code for Energy Conservation in New Building Construction has been developed by those national organizations primarily concerned with the development and promulgation of model codes. The technical provisions are based on ASHRAE Standard 90-75 and are intended for use by state and local officials. This training manual contains the basic information necessary to acquaint the field building inspector with the concepts of energy conservation in buildings and instructs him in the basic techniques of field inspection of energy compliance.

  8. Adaptive capacity of buildings : A determination method to promote flexible and sustainable construction

    NARCIS (Netherlands)

    Geraedts, R.P.; Remøy, H.T.; Hermans, M.H.; Van Rijn, E.

    2014-01-01

    The subject adaptive construction is already for decades on the agenda of the construction sector. The adaptive capacity of a building includes all properties and qualities that enable the building keeping its (economic feasible) functionality during the technical life cycle, under altered

  9. 29 CFR 779.336 - Sales of building materials for commercial property construction.

    Science.gov (United States)

    2010-07-01

    ... property construction. Sales of building materials to a contractor or speculative builder for the... 29 Labor 3 2010-07-01 2010-07-01 false Sales of building materials for commercial property construction. 779.336 Section 779.336 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION...

  10. Climate responsive and safe earthquake construction: a community building a school

    Directory of Open Access Journals (Sweden)

    Hari Darshan

    2011-10-01

    Full Text Available This article outlines environment friendly features, climate responsive features and construction features of a prototype school building constructed using green building technology. The school building has other additional features such as earthquake resistant construction, use of local materials and local technology. The construction process not only establishes community ownership, but also facilitates dissemination of the technology to the communities. Schools are effective media for raising awareness, disseminating technology and up-scaling the innovative approach. The approach is cost effective and sustainable for long-term application of green building technology. Furthermore, this paper emphasizes that such construction technology will be instrumental to build culture of safety in communities and reduce disaster risk.

  11. RADON PREVENTION IN THE DESIGN & CONSTRUCTION OF SCHOOLS & OTHER LARGE BUILDINGS

    Science.gov (United States)

    It is typically easier and much less expensive to design and construct a new building with radon-resistant and/or easy-to-mitigate features, than to add these features after the building is completed and occupied. Therefore, when building in an area with the potential for elevate...

  12. Wood and Other Materials Used to Construct Nonresidential Buildings in the United States 2011

    Science.gov (United States)

    Craig Adair; David B. McKeever; Chris Gaston; Margaret. Stewart

    2013-01-01

    The construction of low-rise nonresidential buildings is an important market for lumber, engineered wood products, and structural and nonstructural wood panels in the United States. This report examines low-rise nonresidential buildings of six or fewer stories. Those with more than six stories are normally severely restricted by building codes from being wood framed....

  13. Wood and Other Materials Used to Construct Nonresidential Buildings in the United States 2011 Executive Summary

    Science.gov (United States)

    David B. McKeever

    2013-01-01

    The construction of low-rise nonresidential buildings is an important market for lumber, engineered wood products, and structural and nonstructural wood panels in the United States. This report examines low-rise nonresidential buildings of six or fewer stories. Those with more than six stories are normally severely restricted by building codes from being wood framed....

  14. BARRIERS AND CHALLENGES OF BUILDING INFORMATION MODELLING IMPLEMENTATION IN JORDANIAN CONSTRUCTION INDUSTRY

    OpenAIRE

    Mohammed A.KA. AL-Btoush*, Ahmad Tarmizi Haron

    2017-01-01

    Construction companies are faced with the need to innovatively integrate the construction process and address project development challenges. One way of doing that is the integration of building information modelling (BIM) in the building design and development cycles. However, due to the lack of clear understanding and the absence of a holistic implementation guideline, many companies are unable to fully achieve BIM potentials or implement BIM in their project and building lifecycle. BIM imp...

  15. School Building Projects: Managing Insurance and Contracts during Construction

    Science.gov (United States)

    Shands, Richard

    2011-01-01

    Managing the risks inherent in a building project presents a challenge and opportunities not often encountered in the ordinary affairs of a school district. A building project brings the district, its staff, and students, as well as the community, in close contact with architects and engineers and a number of contractors for a period of time often…

  16. Optimizing Local Plant Products in Building Construction:Effects of ...

    African Journals Online (AJOL)

    Recent statistics indicate that over 10 million Kenyans are in need of proper housing mainly due to high prices of conventional building materials, outdated building codes that discourage use of readily available local materials, lack of finance, increased population and high rate of urbanization. This situation has given rise ...

  17. Decision Making Process for Constructing Low-Energy Buildings in the Public Housing Sector in Sweden

    Directory of Open Access Journals (Sweden)

    Åsa Wahlström

    2016-10-01

    Full Text Available The built environment accounts for a significant share of energy consumption and energy efficiency in this sector is important for the Swedish environmental objectives. Only a limited share of the total new construction of multifamily houses are constructed as low-energy buildings. Current building regulations lay down requirements for energy efficiency for new construction, and these will be tightened further in the future. Public housing companies often aim to be at the forefront, and the public housing sector has now built half of Sweden’s low-energy blocks of flats. Many public housing companies have tried, but it is uncertain if they will, or have, the possibilities to construct low-energy buildings on a large scale. Twenty public housing companies around Sweden have been interviewed with the aim of identifying obstacles and possibilities to be forerunners and build better than required by the building regulations. The study shows that the public housing companies build better than the law demands and intend to continue doing so. Low-energy buildings are particularly suitable in central locations where land is attractive and the required returns lower. The driving motivation is to be at the forefront and to build green. The new pressure to increase house building can lead to a risk of energy and quality issues being passed over. For the increase in the construction of low-energy buildings to continue, extended, shared and comparable decision making support for the public housing companies is needed.

  18. Advanced FRP for flooring in buildings: a low carbon material application in the construction industry

    OpenAIRE

    Gao, Yijian

    2013-01-01

    Fibre-reinforced polymers (FRP) are building materials that permit both the improvement of long-term building performance and the simplification of the construction process, thanks to their high specific strength, low thermal conductivity, good environmental resistance, and ability to be formed into complex shapes. FRP materials are well-suited to fulfilling many building functions. By integrating traditionally separate building systems and layers into single function-integrated components, a...

  19. Solar architecture and solar building construction. Conference proceedings; Solararchitektur and Solares Bauen. Tagungsband

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2009-07-01

    This is the proceedings volume of the Energy Forum held in Brixen, South Tyrol, on 9/10 December 2008. The following subjects were discussed: 1. Photovoltaic systems integrated in buildings, an introduction; 2. Projecting and implementation of PV projects integrated in buildings; 3. Flexible PV thin film modules for roofs and walls; 4. Intelligent building shells: Integrated building construction with renewable energy sources; 5. Shading, sunshades, daylighting.

  20. Management of construction and demolition wastes as secondary building resources

    Science.gov (United States)

    Manukhina, Lyubov; Ivanova, Irina

    2017-10-01

    The article analyzes the methods of management of construction and demolition wastes. The authors developed suggestions for improving the management system of the turnover of construction and demolition wastes. Today the issue of improving the management of construction and demolition wastes is of the same importance as problems of protecting the life-support field from pollution and of preserving biological and land resources. The authors educed the prospective directions and methods for improving the management of the turnover processes for construction and demolition wastes, including the evaluation of potential of wastes as secondary raw materials and the formation of a centralized waste management system.

  1. Industrialised constructive systems for residential buildings: the CCCabita system

    National Research Council Canada - National Science Library

    Paolo Civiero

    2012-01-01

    .... Open industrialised systems represent the transposition into the constructive field of technological research in the productive chain and they restore the synthesis on the front of the possibilities...

  2. Modular FRP sandwich structures for building floor construction

    OpenAIRE

    Satasivam, Sindu Saprina

    2017-01-01

    Fibre reinforced polymers (FRP) have many advantageous properties compared to traditional steel and concrete, such as lightness in weight and corrosion resistance. FRP is high in strength and, when used as load-bearing members in building structures, can also provide function integration (such as thermal insulation) and environmental benefits (especially when glass fibres are used, i.e. glass fibre reinforced polymers or GFRP). This makes GFRP a promising structural material for building floo...

  3. Energy use for building construction. Final report, March 1, 1976--December 31, 1976

    Energy Technology Data Exchange (ETDEWEB)

    Hannon, B M; Stein, R G; Segal, B; Serber, D; Stein, C

    1976-12-01

    Total (direct and indirect) energy requirements of the construction industry for 1967 were determined in order to examine the potential for energy savings. The Energy Input/Output Model developed at the Center for Advanced Computation, University of Illinois, was expanded to include 49 building and non-building construction sectors (new and maintenance). Total energy intensities were determined for these sectors, as well as energy requirements to final demand. Overall, the construction industry required about 6000 trillion Btu, or about 9% of the total U. S. energy requirement in 1967. About 20% of this requirement was for direct energy. Energy requirements were further broken down according to goods and services purchased by individual construction sectors, and energy distribution patterns were determined within each construction sector. Energy cost per unit for various building materials were calculated, as well as 1967 energy cost per square foot for building sectors. Laboratories required the most energy per square foot (2,074,056 Btu/SF), while Farm Service required the least (149,071 Btu/SF). Comparative interchangeable building assemblies were evaluated for their energy costs, including initial construction and lifetime maintenance energy. Tradeoffs between construction and operational energy costs were determined for a selected wall frame assembly with different exterior finishes and varying degrees of insulation. A study was initiated to determine industries in which direct energy use led to a significant amount of the energy embodied in New Building Construction for 1967. The resulting Energy Flow Chart is included.

  4. Building Information Modeling for Managing Design and Construction

    DEFF Research Database (Denmark)

    Berard, Ole Bengt

    in the field of information systems. Design information quality is defined as conformance of the design information supplied by the design team to a contractor’s specifications for the planning and execution of a construction project. The following eight criteria have been identified in order to describe......, consequently, the information flow are unique. Therefore, the present study suggests a method for identifying information requirements collaboratively between the design and the construction team. The method is based on pull scheduling for design from lean construction. Furthermore, the study suggests...... of five points, ranging from traditional to most innovative practice. However, since technology and practice changes rapidly, the definition of each score has to be adjusted regularly. Finally, the framework is applied to a construction project in order to evaluate its practical application. The framework...

  5. The Insight of Industrialised Building System (IBS) By Bumiputera Construction Players

    OpenAIRE

    Muhammad W. M. N. W.; Azman M. A.; Othman M. K. F.; Hadi N. A.; Sahimi S. N. S.; Mohammad M. F.

    2016-01-01

    The term Industrialised Building System (IBS) is widely recognised by construction players in Malaysia since its first implementation since 1960s for IBS pilot projects of Pekeliling Flats and Rifle Range Flats. The aim for the implementation is to promote better system in delivering construction end-products which offers efficiency and effectiveness. At the same time, Bumiputera construction players are the majority of parties in construction industry especially in Small and Medium Enterpris...

  6. Aligning building information model tools and construction management methods

    NARCIS (Netherlands)

    Hartmann, Timo; van Meerveld, H.J.; Vossebeld, N.; Adriaanse, Adriaan Maria

    2012-01-01

    Few empirical studies exist that can explain how different Building Information Model (BIM) based tool implementation strategies work in practical contexts. To help overcoming this gap, this paper describes the implementation of two BIM based tools, the first, to support the activities at an

  7. Building challenge : international education model for construction education

    NARCIS (Netherlands)

    Stern, G.P. (Glenn); Bazen, J.C. (Jacques); Gavrikov, D.S. (Dennis)

    2016-01-01

    http://dx.doi.org/10.14261/postit/DB158B96-42E6-4619-AB9259AD8729C0AC In 2015 and 2016, Saxion University of Applied Sciences organized the 2nd and 3rd edition of the Regional Innovation and Entrepreneurship Conference (RIEC).   The Building challenge is a new education model in which

  8. Construction Performance Optimization toward Green Building Premium Cost Based on Greenship Rating Tools Assessment with Value Engineering Method

    Science.gov (United States)

    Latief, Yusuf; Berawi, Mohammed Ali; Basten, Van; Riswanto; Budiman, Rachmat

    2017-07-01

    Green building concept becomes important in current building life cycle to mitigate environment issues. The purpose of this paper is to optimize building construction performance towards green building premium cost, achieving green building rating tools with optimizing life cycle cost. Therefore, this study helps building stakeholder determining building fixture to achieve green building certification target. Empirically the paper collects data of green building in the Indonesian construction industry such as green building fixture, initial cost, operational and maintenance cost, and certification score achievement. After that, using value engineering method optimized green building fixture based on building function and cost aspects. Findings indicate that construction performance optimization affected green building achievement with increasing energy and water efficiency factors and life cycle cost effectively especially chosen green building fixture.

  9. Ontology-Based Representation and Reasoning in Building Construction Cost Estimation in China

    Directory of Open Access Journals (Sweden)

    Xin Liu

    2016-08-01

    Full Text Available Cost estimation is one of the most critical tasks for building construction project management. The existing building construction cost estimation methods of many countries, including China, require information from several sources, including material, labor, and equipment, and tend to be manual, time-consuming, and error-prone. To solve these problems, a building construction cost estimation model based on ontology representation and reasoning is established, which includes three major components, i.e., concept model ontology, work item ontology, and construction condition ontology. Using this model, the cost estimation information is modeled into OWL axioms and SWRL rules that leverage the semantically rich ontology representation to reason about cost estimation. Based on OWL axioms and SWRL rules, the cost estimation information can be translated into a set of concept models, work items, and construction conditions associated with the specific construction conditions. The proposed method is demonstrated in Protégé 3.4.8 through case studies based on the Measurement Specifications of Building Construction and Decoration Engineering taken from GB 50500-2013 (the Chinese national mandatory specifications. Finally, this research discusses the limitations of the proposed method and future research directions. The proposed method can help a building construction cost estimator extract information more easily and quickly.

  10. The current state of computing in building design and construction

    DEFF Research Database (Denmark)

    Sørensen, Lars Schiøtt; Andersen, Tom

    1996-01-01

    An exhaustive IT-survey is made in the Danish construction industry in 1995. The outcome of this survey is outlined for a selected number of issues, such as number and types of CAD-systems, data base systems, networking etc. The survey shows, that the use of IT is massive. A detailed investigation...... in relation to AI-based systems is presented. This indicates that AI-based systems/approaches have not yet penetrated in the Danish construction industry. Determinants relevant to technology penetration are described, and the immediate potential for AI-penetration are discussed and compared with the actual...

  11. Towards a sustainable aesthetics. Architects constructing energy efficient buildings

    Energy Technology Data Exchange (ETDEWEB)

    Ryghaug, Marianne

    2002-07-01

    This interdisciplinary study discusses challenges in energy economising in Norway as they involve the architect profession and their role in affecting the energy standard in buildings. The main research question is separated into two component research questions. The first is to analyse how the reality orientation of the architect profession is constituted and maintained, and how this in turn influences their values in connection to energy related decisions. How is the architects' professional role conception reflected in the educational system and architect journals, and how is it expressed among the 'green outsiders' of the profession? The second component research question is related to decision-making processes regarding design processes, particularly concerning energy in buildings and the role played by the architects in these processes as they interact with other actors and within institutional frames.

  12. Exploration of Team Integration in Spanish Multifamily Residential Building Construction

    OpenAIRE

    Pellicer, Eugenio; Sanz Benlloch, María Amalia; Esmaeili, B; MOLENAAR, KEITH ROBERT

    2016-01-01

    Project delivery team integration generally involves early involvement of general contractors and key specialty contractors in the design process. Team integration has been found to improve an owner’s probability of success. However, during difficult economic times, owners can forego early team involvement and move toward low bid procurement to take advantage of competitive markets. This study explores the performance of integrated teams in the Spanish multifamily building constructi...

  13. Building Robust Systems with Fallible Construction (Elaboration de systemes informatiques robustes a l’architecutre faillible)

    Science.gov (United States)

    2008-04-01

    IST-047 Building Robust Systems with Fallible Construction (Elaboration de systèmes informatiques robustes à l’architecture faillible) Final...IST-047 Building Robust Systems with Fallible Construction (Elaboration de systèmes informatiques robustes à l’architecture faillible...and cost investments. ES - 2 RTO-TR-IST-047 Elaboration de systèmes informatiques robustes à l’architecture faillible (RTO-TR-IST-047

  14. Management of metrology in measuring of the displacement of building construction

    OpenAIRE

    Jiří Kratochvíl

    2007-01-01

    The metrology management of the measurement of the displacement of building construction is not regulated in the standard ČSN ISO 73 0405 - Measurement of the displacement of building construction. But the metrology management has to be included in the project of measurement of the displacement (Stage of project). Then we have to pay an attention to the metrological management during this measurement (Stage of realization) and during the evaluation of this measurement (Stage of evaluation). W...

  15. Applications of building information model (BIM) in Malaysian construction industry

    Science.gov (United States)

    Tahir, M. M.; Haron, N. A.; Alias, A. H.; Al-Jumaa, A. T.; Muhammad, I. B.; Harun, A. N.

    2017-12-01

    Since the introduction of BIM in Malaysia in 2009, the technology adoption rate is slow when compared to other countries of the world. Most of the construction companies in Malaysia have an insight on the BIM concept but are yet to implement it in the management of their construction projects. By the year 2020, the Malaysian government will make BIM mandatory, this makes it important to carry out research on the possible applications of the technology. A qualitative method of enquiry was used for this study in Klang Valley using semistructured interview. The responses received were analysed using Principal component analysis (PCA). The result of the analysis showed that “quantity take-off and estimation”, “clash detection and coordination”, “integration and collaboration of stakeholders”, and “design and visualisation” as the main applications of BIM in Malaysia presently. The implication of this findings is that the Malaysian construction industry productivity is likely to increase to meet the demand of the population through the implementations of BIM. More also, BIM technology is regarded as the future of construction industry, which makes it very important for the industry.

  16. Cyclone-Resistant Rural Primary School Construction - A Design Guide. Educational Building Report 7.

    Science.gov (United States)

    Sinnamon, Ian T.; Loo, G. A. van't

    One of a series of documents on design of disaster-resistant buildings, this publication treats construction of rural primary schools to resist destruction by wind and water from cyclones. Also appropriate for other buildings, material is aimed at rural primary schools because they are less likely to be professionally designed or supervised; the…

  17. [Alexandre Vallaury and two of the buildings he constructed].

    Science.gov (United States)

    Ceylan, O

    1995-01-01

    A. Vallaury appears in the Ottoman society as an architect and an educator with his remarkable personality in the late XIX. century. In this essay two buildings designed by Vallaury, "Mekteb-i Tibbiye-i Sâhâne" and "Büyükada Greek Orphanage" are described. This study consists of three parts, Vallaury's life story, his works and contribution to the Ottoman architecture. Vallaury was born in Istanbul on April 2, 1850. His parents were of Levantin and French origin. He went to Paris for higher education and attended the School of Fine Arts. On returning to Istanbul, he worked as a teacher of architecture at the "Sanayi-i Nefise Mekteb-i Alisi", (today's Mimar Sinan University) from March 2, 1883 to August 10, 1908. He was rewarded with Legion d'Honneur in 1896. He died in Istanbul on May 2, 1921. Vallaury's works may be classified as, commercial, cultural, educational, residential and religious buildings. Some of his works may be exemplified as such: Afif Pasha Yalisi (Seaside Residence) at Istinye, Mecid Efendi Kiosk at Bağlarbasşi, Ottoman Bank at Galata and Eminönü, Dümayûn-i (Royal Museum of Archeology) at Sultanahmet, School of Medicine at Haydarpasha, and Greek Orphanage at Büyükada. A. Vallaury fused Ottoman culture and Western forms together in his works. He also designed buildings of free articulation, new measurement and novel proportions. He was a respected Ottoman intellectual, as well.

  18. Appraisal of external surfaces of buildings and constructions for rent

    OpenAIRE

    Kirichek, Yur. O.; Lando, E. A.

    2015-01-01

    Analysis of the existing methods of appraisal of surface roofs is made. Key valuation problems of space on the rooftop under the placement of antenna-feeder devices identified. Methods for calculating value of the surface area of the roof, outer square surface of the building and the outside surface area of a chimney proposed. The methods allow more correct to consider forming value of such factors as the market value of land, the size of the leased area on the roof and on external walls, the...

  19. Evaluation of Ventilation Strategies in New Construction Multifamily Buildings

    Energy Technology Data Exchange (ETDEWEB)

    Maxwell, S. [Consortium for Advanced Residential Buildings (CARB), Norwalk, CT (United States); Berger, D. [Consortium for Advanced Residential Buildings (CARB), Norwalk, CT (United States); Zuluaga, M. [Consortium for Advanced Residential Buildings (CARB), Norwalk, CT (United States)

    2014-07-01

    In multifamily buildings, particularly in the Northeast, exhaust ventilation strategies are the norm as a means of meeting both local exhaust and whole-unit mechanical ventilation rates. The issue of where the "fresh" air is coming from is gaining significance as air-tightness standards for enclosures become more stringent. CARB researchers have found that most new high performance, multifamily housing in the Northeast use one of four strategies for ventilation: continuous exhaust only with no designated supply or make-up air source, continuous exhaust with ducted make-up air to apartments, continuous exhaust with supply through a make-up air device integral to the unit HVAC, and continuous exhaust with supply through a passive inlet device, such as a trickle vent. Insufficient information is available to designers on how these various systems are best applied. Product performance data are based on laboratory tests, but there is no guarantee that those conditions will exist consistently in the finished building. In this research project, CARB evaluated the four ventilation strategies in the field to validate system performance.

  20. Convergence Among the Submarkets in Australian Regional Building and Construction Sector

    Directory of Open Access Journals (Sweden)

    Junxiao Liu

    2010-12-01

    Full Text Available Studies on market convergence are well considered in the literature. However, the majority of the previous research focused on housing markets and few studies have concentrated on construction markets. Owing to a simultaneously dramatic increase in the construction prices of the sub-markets in the building construction sector in Australia, this paper aims to identify the convergence among these markets, involving house construction market, other-residential building construction market, and non-residential building construction market. To achieve it the Granger causality test and generalized response function depending on the vector error correction model with the quarterly data of Australia’s eight states from 1998 to 2010 will be applied. Based upon the econometric tests, the price diffusion patterns among these construction markets have been identified. Research on the convergences of construction markets not only helps construction firms perform well in business operations and arbitrage activities, but also provides policy makers with useful information for enacting effective construction policies for national perspectives and approaches to infrastructure planning.

  1. New build CANDU in Canada - development and application of information management systems for latest construction technology

    Energy Technology Data Exchange (ETDEWEB)

    Asakura, S.; Akane, N. [Hitachi Ltd., Power Systems, Hitachi Works, Hitachi City, Ibaraki (Japan); Byrne, J.; Canas, B.; Kereliuk, S. [Atomic Energy of Canada Limited, Mississauga, Ontario (Canada); Akahori, S. [Hitachi Canada Ltd., Power and Industry Division, Mississauga, Ontario (Canada)

    2007-07-01

    In the wake of recent events representing growing nuclear energy interest in Canada, AECL and Hitachi are sharing each other's expertise as each company has its own unique and unrivalled capability in managing new build construction projects. This paper addresses some of the key strategies used to execute successfully a New CANDU build project, by focusing on recent developments and implementations in the construction and project management fields and by highlighting the use of cutting edge information technology. These strategies are designed to achieve and maximize their benefit to the New Build CANDU project team, to AECL/Hitachi as well as customers, partners and suppliers. (author)

  2. A product modelling approach to competitive tendering in the building and construction industries

    NARCIS (Netherlands)

    Tolman, F.P.; Oszariyildiz, S.

    1998-01-01

    Competitive tendering is the activity of turnkey vendors and construction consortia in the Building and Construction industries that, to a large extend, determines the company's competitiveness. From the tender price it follows if a contract will be won or not, and, if the bid has been successful,

  3. Guide for a building energy label. Promoting bio-climatic and solar construction and renovation

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    Technically speaking, building experts have the knowledge to deal with thermal inertia of buildings, solar gains, insulation, efficient ventilation, and daylighting... to get low energy buildings that provide comfort for the users. Buildings should always be designed according to the specificities of the local climate, according to a ''solar and bio-climatic construction'' approach. It is not always possible to fully apply these principles, particularly in urban areas with high density. However, this is unacceptable to keep building with such errors as insufficient insulation and direct electrical heating, single glazing, thermal bridges, low efficiency heating systems. This guide aims at encouraging the building experts to take into account the energy efficiency. Implementing a building energy label will allow general public to be aware of this issue and then, and will then lead to develop better practices. (author)

  4. Modules in historic building construction according to the Copenhagen Building Code

    DEFF Research Database (Denmark)

    Kudsk, Anders; Thuesen, Christian Langhoff; Hvam, Lars

    2011-01-01

    This paper describes an analysis of building works from Copenhagen, Denmark in the period 1850 to 1950. In the study we investigate, based on the theory of product architecture and product modularization, if examples of the use of well-defined interfaces can be found. Furthermore, the aim...... is to study how the use of such interfaces has influenced former building processes and how they were implemented and kept stable over decades. The result of the study is that at that time a number of standardized interfaces between the individual parts of the building work existed, and that these interfaces...

  5. Expanded polystyrene as the bearing building material of low energy construction

    Science.gov (United States)

    Mesaros, P.; Spisakova, M.; Kyjakova, L.; Mandicak, T.

    2015-01-01

    Sustainability of buildings is a really important issue for the construction industry. Sustainable buildings are characterized by the lower construction costs for energy consumption and operations, they are environmentally friendly, able to save natural resources and they are comfortable and healthy for their users. The European Union supports this trend through its Strategy 2020, respectively with document Energy Roadmap 2020. The strategy 2020 sets greenhouse gas emissions 20% lower than 1990, 20% of energy from renewable and 20% increase in energy efficiency. It manifests itself in introduction of modern technologies of house building. One potential for the energy saving is construction of low-energy buildings using modern materials. This paper focuses on the analysis of the low-energy buildings made by expanded polystyrene as the bearing building material. The paper analyzes their design and describes the benefits of this modern but unusual type of construction technology for houses. The examples from abroad clearly indicate that this technology has potential in modern architecture. The success and exploration of this technology potential in the conditions of Slovak construction sector is closely related to interest of investors and users of further sustainable houses which are design according the Strategy 2020 conditions.

  6. Incorporating Lean Construction agent into the Building Standards Act: the Spanish case study

    Directory of Open Access Journals (Sweden)

    Brioso Xavier

    2016-12-01

    Full Text Available There is a demand for lean construction in Europe; even though lean construction is still an emerging field and there is growing interest, there are no regulations on this topic. The main objective of this research is to regulate this role when in a project and to define and develop a building agent structure, according to the Building Standards Act (LOE by its acronym in Spanish, to be able to incorporate it into the Spanish law, protecting it from civil liabilities. In Spain, there is jurisprudence in civil jurisdiction based on the LOE to acquit or convict building agents, who are defined in the courts as “constructive managers” or similar. For this reason, courts could establish in the future several liabilities for the lean construction specialist and other agents of the project, depending on their actions and based on the implementation of the lean project delivery system, the target value design and the integrated project delivery. Conversely, it is possible that the level of action of the lean construction specialist may comprise design management, construction management and contract management. Accordingly, one or more building agents should be appropriately incorporated into the LOE according to their functions and responsibilities and based on the levels of action of the lean construction specialist. The creation of the following agents is proposed: design manager, construction manager and contract manager, definitions that are developed in this study. These agents are loosely defined, because any project manager, building information modeling manager or similar may act as one or as more-than-one of them. Finally, the creation of the lean construction manager is also proposed, as the agent who takes on the role of the design manager, construction manager and contract manager, but focused on the lean production principles.

  7. Thermal Performance of Typical Residential Building in Karachi with Different Materials for Construction

    Directory of Open Access Journals (Sweden)

    Nafeesa Shaheen

    2016-04-01

    Full Text Available This research work deals with a study of a residential building located in climatic context of Karachi with the objective of being the study of thermal performance based upon passive design techniques. The study helps in reducing the electricity consumption by improving indoor temperatures. The existing residential buildings in Karachi were studied with reference to their planning and design, analyzed and evaluated. Different construction?s compositions of buildings were identified, surveyed and analyzed in making of the effective building envelops. Autodesk® Ecotect, 2011 was used to determine indoor comfort conditions and HVAC (Heating, Ventilation, Air-Conditioning and Cooling loads. The result of the research depicted significant energy savings of 38.5% in HVAC loads with proposed building envelop of locally available materials and glazing.

  8. Benefits of Building Information Modelling in the Project Lifecycle: Construction Projects in Asia

    Directory of Open Access Journals (Sweden)

    Jian Li

    2014-08-01

    Full Text Available Building Information Modelling (BIM is a process involving the creation and management of objective data with property, unique identity and relationship. In the Architecture, Engineering and Construction (AEC industry, BIM is adopted a lot in the lifecycle of buildings because of the high integration of information that it enables. Four-dimensional (4D computer-aided design (CAD has been adopted for many years to improve the construction planning process. BIM is adopted throughout buildings' lifecycles, in design, construction and operation. This paper presents five large-scale public and financial projects that adopt BIM in the design, construction and operational phases. Different uses of BIM are compared and contrasted in the context of the separate backgrounds. It is concluded that productivity is improved where BIM is used to enable easy sharing and integration of information and convenient collaboration.

  9. Building Success: Education and Industry are Working Together to Build a Skilled Worforce in Construction

    Science.gov (United States)

    Whyte, Don

    2006-01-01

    Today's secondary, postsecondary and career and technical education students stand poised at the center of industry trends that will benefit them enormously. The country is embarking on a construction boom. As baby boomers approach retirement age, a significant portion of the existing construction workforce will be leaving, thus, demand for…

  10. A two-phase moisture transport model accounting for sorption hysteresis in layered porous building constructions

    DEFF Research Database (Denmark)

    Johannesson, Björn; Janz, Mårten

    2009-01-01

    Building constructions most commonly consists of layered porous materials such as masonry on bricks. The moisture distribution and its variations due to change in surrounding environment is of special interest in such layered construction since materials adsorb different amounts of water and exhi......Building constructions most commonly consists of layered porous materials such as masonry on bricks. The moisture distribution and its variations due to change in surrounding environment is of special interest in such layered construction since materials adsorb different amounts of water...... and exhibits different transport properties. A successful model of such a case may shred light on the performance of different constructions with regards to, for example, mould growth and freeze thaw damages. For this purpose a model has been developed which is based on a two phase flow, vapor and liquid water...

  11. Challenges of the expansive use of Building Information Modeling (BIM in construction projects

    Directory of Open Access Journals (Sweden)

    Hannele Kerosuo

    2015-06-01

    Full Text Available Building information modeling (BIM is an emerging modeling technology which challenges existing work procedures and practices in the construction industry. In this article we study the challenges, problems and potential expansions of BIM as a tool in the design, construction and operation of buildings. For this purpose the interfaces between different parties are examined in Finnish construction projects. The methodological approach of the study is cultural-historical activity theory, according to which a new artifact becomes a mediating instrument when the participatory subjects reconfigure the entire activity. The implementation of BIM is now spreading from the design activity to other phases of the construction projects, but its use is still limited in the projects' other three interfaces. BIM is an evolving set of software developed for various purposes which is locally 'combined' to fit the circumstances and capabilities of the stakeholders of the construction process.

  12. Construction products performances and basic requirements for fire safety of facades in energy rehabilitation of buildings

    Directory of Open Access Journals (Sweden)

    Laban Mirjana Đ.

    2015-01-01

    Full Text Available Construction product means any product or kit which is produced and placed on the market for incorporation in a permanent manner in construction works, or parts thereof, and the performance of which has an effect on the performance of the construction works with respect to the basic requirements for construction works. Safety in case of fire and Energy economy and heat retention represent two among seven basic requirements which building has to meet according to contemporary technical rules on planning and construction. Performances of external walls building materials (particularly reaction to fire could significantly affect to fire spread on the façade and other building parts. Therefore, façade shaping and materialization in building renewal process, has to meet the fire safety requirement, as well as the energy requirement. Brief survey of fire protection regulations development in Serbia is presented in the paper. Preventive measures for fire risk reduction in building façade energy renewal are proposed according to contemporary fire safety requirements.

  13. Field monitoring of column shortenings in a high-rise building during construction.

    Science.gov (United States)

    Choi, Se Woon; Kim, Yousok; Kim, Jong Moon; Park, Hyo Seon

    2013-10-24

    The automatic monitoring of shortenings of vertical members in high-rise buildings under construction is a challenging issue in the high-rise building construction field. In this study, a practical system for monitoring column shortening in a high-rise building under construction is presented. The proposed monitoring system comprises the following components: (1) a wireless sensing system and (2) the corresponding monitoring software. The wireless sensing system comprises the sensors and energy-efficient wireless sensing units (sensor nodes, master nodes, and repeater nodes), which automate the processes for measuring the strains of vertical members and transmitting the measured data to the remote server. The monitoring software enables construction administrators to monitor real-time data collected by the server via an Internet connection. The proposed monitoring system is applied to actual 66-floor and 72-floor high-rise buildings under construction. The system enables automatic and real-time measurements of the shortening of vertical members, which can result in more precise construction.

  14. Examination of Green Building Drivers in the South African Construction Industry: Economics versus Ecology

    Directory of Open Access Journals (Sweden)

    Abimbola Olukemi Windapo

    2014-09-01

    Full Text Available There is a large body of literature on green buildings, but few studies have focused on the motivation behind the construction of green buildings globally, and in South Africa in particular. This paper investigates the key drivers of green building in the Western Cape Construction Industry of South Africa and examines whether these drivers have changed over time. A comprehensive literature review was undertaken to provide an overview of green building issues globally and in South Africa, followed by an empirical investigation into the drivers of green building in South Africa using a multi-case study approach. The findings reveal that the key drivers of green building include rising energy costs, the industry’s Green Star rating system, competitive advantages and legislation. The study also indicates that these key drivers have not changed significantly over time. Taken together, these results suggest that the increase in green building has little to do with ecological factors and more to do with economic factors—operational costs and stakeholder demands. The paper concludes that as long as the cost of energy continues to increase and there are recognised industry rating systems in place, the need for green buildings is likely to remain.

  15. Natural air conditioning and design of building openings in residential building construction in Mexico. Natuerliche Klimatisierung und Gebaeudeoeffnungen im Wohnungsbau Mexikos

    Energy Technology Data Exchange (ETDEWEB)

    Torres Alpuche, M.E.

    1989-01-01

    In this work, recognition about constructional measures are gained, representing a contribution to natural air conditioning in tropical areas, by means of selected examples of traditional residential building in Mexico. With this, it is important to ensure a thermal well-being that fulfills present comfort requirements. Three different climatic zones are investigated. The constructional measures are classified according to the following groups considering the conception of the building opening suitable for the climate: Environment and building openings, position and dimension of the building opening, protecting devices on building offices. Furthermore, it is proven by means of an example of modern single-family houses in Mexico, that the recognition gained in a side range can be also usefully applied in present building construction. This results in recommendations for conceptions of building openings in the sense of a construction that is suitable for the climate and energy saving. (orig./KW).

  16. Definition of Availability Index of Deformed Building Constructions Using the Finite – Element Analysis Package

    Science.gov (United States)

    Shutova, M. N.; Skibin, G. M.; Evtushenko, S. I.

    2017-11-01

    The paper is devoted to the problem of definition of availability index of deforming building construction in atypical cases. The authors revealed a real applicability of the finite-elements analyses package, such as ANSYS, for engineering testing calculations of building constructions and determination of the sites of increased stresses. It was determined that stresses increased up to 7.75 times in the sites with mechanical defects (for steel crane girder); also, the authors revealed the convergence of the calculation results between the finite element method and a usual decision using the strength of materials (in the limits 2-14% for steel truss frame). The equivalent stresses don’t exceed the maximum permissible tension for this type of steel. The building constructions have a limited availability index.

  17. Glass in building construction: research and innovative application; Konstruktiver Glasbau: Forschung und Innovation

    Energy Technology Data Exchange (ETDEWEB)

    Weller, B.; Rexroth, S. [Technische Univ. Dresden (Germany). Inst. fuer Baukonstruktion

    2007-07-01

    The Institute of Building Construction at TU Dresden focuses its work within the building integration of photovoltaic (PV) modules on different aspects of design and construction. The research projects are aimed at improving the acceptance and the widespread, sustainable use of PV technology. The research teams are together developing new solutions for PV modules in an interdisciplinary approach, on the basis of thin-film technology with copper-indium-diselenide (CIS). This technology, in contrast to conventional silicon wafers, permits homogeneous and even coloured surfaces. The development of innovative PV modules integrates aspects of all stakeholders. It is concentrated specifically on the requirements of building refurbishment. But the solutions should also be able to satisfy the requirements of other aesthetical challenges in building engineering. (orig.)

  18. The occupational safety on the construction sites of the farm production buildings in Finland

    Directory of Open Access Journals (Sweden)

    M. Hellstedt

    2013-09-01

    Full Text Available The size of farms has increased considerably during Finland's EU membership. The growth has meant big investments in the new production buildings. The buildings have been switched to big industrialhall- like constructions from small-scale ones which have contained own timber and own work contribution. The objective of the project financed by Farmers' Social Insurance Institution was to improve occupational safety on farm building construction and renovation sites by disseminating current safety practices and by developing ways of action which are better than the prevailing ones. The project consisted of a literature review, statistical analysis, as well as a farmer and designer interviews. In the statistical analysis the MATA occupational injuries insurance claims database on farmers’ claims during construction and renovation work for the years 2005 - 2008 was compared with the register of Federation of Accident Insurance Institutions on the construction workers' injuries. In comparing the reasons of the accidents a clear difference was found; poor scaffoldings and ladders are still the main culprits on farm accidents. Farmer interviews were used to assess occupational safety measures on the construction site, occurred injuries and their types, nearmiss situations and the underlying factors which have led to the injuries. Also construction safety deficiencies as well as the direct and indirect costs caused for instance because of the delay in completion of construction project were discussed. Designer interviews aimed to find out how occupational safety and health considerations are taken into account in farm building planning and counseling, and how this experience of the designers should be utilized in order to improve safety at the construction sites on farms. Farmers knew their obligations on occupational safety poorly. The situation was further worsened by the fact that on the site the supervisor tasks were only nominally executed. The

  19. A Prospective Study on Building Quality: Relationship between Workmanship Quality and Common Building Defects of Low-cost Construction Projects

    Directory of Open Access Journals (Sweden)

    Othuman Mydin M.A.

    2014-01-01

    Full Text Available This study focuses on the quality of workmanship in the construction of low-cost housing in Kedah and Penang State, Malaysia and its relation to defects occurring in the building. The objectives of this study are to investigate common building defects that mostly occur at low-cost housing due to poor workmanship, the factors that contribute to poor workmanship and to established possible measures to minimize these problems. From the combination of literary reviews and questionnaire surveys, this research explores all the stated objectives. For this particular study, quantitative research was conducted through questionnaire surveys involving respondents who are involved in and are experienced in working on construction projects. After analysing the data, this study found that most common defects occurring on low-cost housing are cracks on walls, settlement and peeling paint. Additionally, construction of low-cost housing commonly suffers from low quality workmanship due to poor project management and a lack of experience and competency among labourers. These significant impediments can be remedied by providing training and education to the labourers as well as implementing strict supervision during construction work.

  20. Building Information Modeling 4D, Virtual Design & Construction y Last Planner System

    OpenAIRE

    NOGUERA SERRA, DIEGO

    2015-01-01

    [ES] En la actualidad diferentes filosofías, metodologías, herramientas se están aplicando en el sector de la construcción. Muchas de ellas consolidadas desde hace años en otros países y que están llegando a nuestro país como: Building Information Modeling, Lean Construction, Last Planner System y otras menos conocidas como Virtual Design & Construction. En este trabajo de fin de grado, se utiliza la metodología Building Information Modeling (BIM) aplicando la filosofía Lean y en concreto co...

  1. Building construction materials effect in tropical wet and cold climates: A case study of office buildings in Cameroon

    Directory of Open Access Journals (Sweden)

    Modeste Kameni Nematchoua

    2016-03-01

    Full Text Available This paper presents the results of an experimental study that was conducted in 15 office buildings in the humid and cold tropics during the working hours of the dry and rainy seasons in Cameroon. This was with the aim to study the effects that local and imported materials had on indoor air quality. To achieve this objective, the adaptive model approach has been selected. In accordance with the conditions of this model, all workers were kept in natural ventilation and, in accordance with the general procedure, a questionnaire was distributed to them, while variables, like air temperature, wind speed, and relative humidity were sampled. The results showed a clear agreement between expected behaviour, in accordance with the characteristics of building construction, and its real indoor ambience once they were statistically analysed. On the other hand, old buildings showed a higher percentage of relative humidity and a lower degree of indoor air temperature. Despite this, local thermal comfort indices and questionnaires showed adequate indoor ambience in each group of buildings, except when marble was used for external tiling. The effect of marble as an external coating helps to improve indoor ambience during the dry season. This is due to more indoor air and relative humidity being accumulated. At the same time, these ambiences are degraded when relative humidity is higher. Finally, these results should be taken cognisance of by architects and building designers in order to improve indoor environment, and overcome thermal discomfort in the Saharan area.

  2. Estimation of construction and demolition waste volume generation in new residential buildings in Spain.

    Science.gov (United States)

    Villoria Sáez, Paola; del Río Merino, Mercedes; Porras-Amores, César

    2012-02-01

    The management planning of construction and demolition (C&D) waste uses a single indicator which does not provide enough detailed information. Therefore the determination and implementation of other innovative and precise indicators should be determined. The aim of this research work is to improve existing C&D waste quantification tools in the construction of new residential buildings in Spain. For this purpose, several housing projects were studied to determine an estimation of C&D waste generated during their construction process. This paper determines the values of three indicators to estimate the generation of C&D waste in new residential buildings in Spain, itemizing types of waste and construction stages. The inclusion of two more accurate indicators, in addition to the global one commonly in use, provides a significant improvement in C&D waste quantification tools and management planning.

  3. Utilization of building information modeling in infrastructure’s design and construction

    Science.gov (United States)

    Zak, Josef; Macadam, Helen

    2017-09-01

    Building Information Modeling (BIM) is a concept that has gained its place in the design, construction and maintenance of buildings in Czech Republic during recent years. This paper deals with description of usage, applications and potential benefits and disadvantages connected with implementation of BIM principles in the preparation and construction of infrastructure projects. Part of the paper describes the status of BIM implementation in Czech Republic, and there is a review of several virtual design and construction practices in Czech Republic. Examples of best practice are presented from current infrastructure projects. The paper further summarizes experiences with new technologies gained from the application of BIM related workflows. The focus is on the BIM model utilization for the machine control systems on site, quality assurance, quality management and construction management.

  4. Scientific Support of Construction of Unique Buildings and Structures and Facilities of Increased Danger

    Science.gov (United States)

    Alekhin, V. N.; Antipin, A. A.; Gorodilov, S. N.

    2017-11-01

    A range of works on scientific support for the construction of unique buildings and the structures and facilities of increased danger, such as airport facilities, long-span and high-rise buildings is being implemented at the department “Computer Aided Design in Civil Engineering” of Ural Federal University. The scope of work includes: numerical simulation of wind and snow loads, analysis of progressive collapse and seismic impacts, verification of design solutions. The results of wind, snow loads and progressive collapse of airport buildings in the cities of Orenburg, Rostov-on-Don and Perm are considered in the article.

  5. Wood products used in the construction of low-rise nonresidential buildings in the United States, 2003

    Science.gov (United States)

    David B. McKeever; Craig Adair; Jennifer O' Connor

    2005-01-01

    Low-rise nonresidential building construction is an important market for lumber, structural wood panels, nonstructural wood panels, and engineered wood products in the United States. This report examines low-rise nonresidential buildings of four or fewer stories only, because buildings with five or more stories are normally severely restricted by building code from...

  6. Wood products used in the construction of low-rise nonresidential buildings in the United States, 2008

    Science.gov (United States)

    David McKeever

    2010-01-01

    Low-rise nonresidential building construction is an important market for lumber, structural wood panels, nonstructural wood panels, and engineered wood products in the United States. This report examines low-rise nonresidential buildings of four or fewer stories only. Buildings with five or more stories are normally severely restricted by building code from being wood...

  7. The Insight of Industrialised Building System (IBS By Bumiputera Construction Players

    Directory of Open Access Journals (Sweden)

    Muhammad W. M. N. W.

    2016-01-01

    Full Text Available The term Industrialised Building System (IBS is widely recognised by construction players in Malaysia since its first implementation since 1960s for IBS pilot projects of Pekeliling Flats and Rifle Range Flats. The aim for the implementation is to promote better system in delivering construction end-products which offers efficiency and effectiveness. At the same time, Bumiputera construction players are the majority of parties in construction industry especially in Small and Medium Enterprises (SMEs. Therefore, the purpose of this paper is to identify the perception and awareness of IBS implementation among Bumiputera players. It is found that, Bumiputera construction players have sound knowledge on the IBS and optimistic towards further implementation for future projects. Nonetheless, issues on payment methods and coordination of IBS project delivery are found to be the negative perceptions which are considered as hindrance for Bumiputera construction players’ involvement in IBS project.

  8. An Innovative Time-Cost-Quality Tradeoff Modeling of Building Construction Project Based on Resource Allocation

    Directory of Open Access Journals (Sweden)

    Wenfa Hu

    2014-01-01

    Full Text Available The time, quality, and cost are three important but contradictive objectives in a building construction project. It is a tough challenge for project managers to optimize them since they are different parameters. This paper presents a time-cost-quality optimization model that enables managers to optimize multiobjectives. The model is from the project breakdown structure method where task resources in a construction project are divided into a series of activities and further into construction labors, materials, equipment, and administration. The resources utilized in a construction activity would eventually determine its construction time, cost, and quality, and a complex time-cost-quality trade-off model is finally generated based on correlations between construction activities. A genetic algorithm tool is applied in the model to solve the comprehensive nonlinear time-cost-quality problems. Building of a three-storey house is an example to illustrate the implementation of the model, demonstrate its advantages in optimizing trade-off of construction time, cost, and quality, and help make a winning decision in construction practices. The computational time-cost-quality curves in visual graphics from the case study prove traditional cost-time assumptions reasonable and also prove this time-cost-quality trade-off model sophisticated.

  9. Waste generated in high-rise buildings construction: a quantification model based on statistical multiple regression.

    Science.gov (United States)

    Parisi Kern, Andrea; Ferreira Dias, Michele; Piva Kulakowski, Marlova; Paulo Gomes, Luciana

    2015-05-01

    Reducing construction waste is becoming a key environmental issue in the construction industry. The quantification of waste generation rates in the construction sector is an invaluable management tool in supporting mitigation actions. However, the quantification of waste can be a difficult process because of the specific characteristics and the wide range of materials used in different construction projects. Large variations are observed in the methods used to predict the amount of waste generated because of the range of variables involved in construction processes and the different contexts in which these methods are employed. This paper proposes a statistical model to determine the amount of waste generated in the construction of high-rise buildings by assessing the influence of design process and production system, often mentioned as the major culprits behind the generation of waste in construction. Multiple regression was used to conduct a case study based on multiple sources of data of eighteen residential buildings. The resulting statistical model produced dependent (i.e. amount of waste generated) and independent variables associated with the design and the production system used. The best regression model obtained from the sample data resulted in an adjusted R(2) value of 0.694, which means that it predicts approximately 69% of the factors involved in the generation of waste in similar constructions. Most independent variables showed a low determination coefficient when assessed in isolation, which emphasizes the importance of assessing their joint influence on the response (dependent) variable. Copyright © 2015 Elsevier Ltd. All rights reserved.

  10. The effects of the global financial crisis on the Australian building construction supply chain

    Directory of Open Access Journals (Sweden)

    Ram Karthikeyan Thangaraj

    2012-09-01

    Full Text Available This study involves a financial analysis of 43 publicly listed and large private companies in the building and construction supply chain from 2005 to 2010; straddling the period of the global financial crisis (GFC; and examines the impact of the GFC on the performance of these companies. The construction supply chain was divided into four sectors – material suppliers, construction companies, property developers and real estate investment trusts (REITs. The findings indicate that the impact was minimal for both material suppliers and construction companies, but especially severe for the more leveraged property developers and REITs. Building material suppliers and construction companies have benefitted substantially from the building economic stimulus package provided by the Australian government to mitigate the effects of the GFC. Decreases in the valuation of assets have, to a large extent, reduced the profitability of property developers and REITs during the GFC but these companies have recovered quickly from these adverse conditions to return to a sound financial position by the end of the 2010 financial year. The results will inform investors, managers and construction professionals in devising strategies for prudent financial management and for weathering future financial crises.

  11. STUDY ON CONSTRUCTION OF 3D BUILDING BASED ON UAV IMAGES

    Directory of Open Access Journals (Sweden)

    F. Xie

    2012-07-01

    Full Text Available Based on the characteristics of Unmanned Aerial Vehicle (UAV system for low altitude aerial photogrammetry and the need of three dimensional (3Dcity modeling, a method of fast 3D building modeling using the images from UAV carrying four-combined camera is studied. Firstly, by contrasting and analyzing the mosaic structures of the existing four-combined cameras, a new type of four-combined camera with special design of overlap images is designed, which improves the self-calibration function to achieve the high precision imaging by automatically eliminating the error of machinery deformation and the time lag with every exposure, and further reduce the weight of the imaging system. Secondly, several-angle images including vertical images and oblique images gotten by the UAV system are used for the detail measure of building surfaces and the texture extraction. Finally, two tests that are aerial photography with large scale mapping of 1:1000 and 3D building construction in Shandong University of Science and Technology and aerial photography with large scale mapping of 1:500 and 3D building construction in Henan University of Urban Construction, provide authentication model for construction of 3D building based on combined wide-angle camera images from UAV system. It is demonstrated that the UAV system for low altitude aerial photogrammetry can be used in the construction of 3D building production, and the technology solution in this paper offers a new, fast and technical plan for the 3D expression of the city landscape, fine modeling and visualization.

  12. Strategies for Promoting Green Building Technologies Adoption in the Construction Industry—An International Study

    Directory of Open Access Journals (Sweden)

    Albert Ping Chuen Chan

    2017-06-01

    Full Text Available Because green building technologies (GBTs adoption is a promising way of ameliorating the sustainability performance of buildings, GBTs are receiving increased interest in the global construction community. The barriers to the adoption of GBTs, such as higher cost and lack of awareness, further indicate that proper strategies need to be devised for promoting the wider adoption of GBTs in buildings development. However, there exist limited empirical studies identifying the strategies for promoting GBTs adoption in the construction industry. This study aims to identify the strategies that are important for promoting GBTs adoption in construction. After a comprehensive literature review to identify strategies for the promotion of GBTs adoption, empirical data were gleaned through a questionnaire survey with 104 green building experts around the world. The analysis results validated the importance of all of the 12 promotion strategies used for the study. Green building experts from different countries and with different backgrounds had significant agreement on the relative importance ranking of the promotion strategies. Furthermore, “financial and further market-based incentives for GBTs adopters”, “availability of better information on cost and benefits of GBTs”, “mandatory governmental policies and regulations”, and “green rating and labeling” were identified as the top four important promotion strategies. The research findings provide a valuable reference to assist practitioners and policy makers in developing practical strategies for promoting GBTs adoption to eventually achieve the sustainable development of buildings. From the perspective of international experts, this study adds to the green building literature by offering empirical evidence of the important strategies for promoting GBTs adoption in the construction industry. Future research will investigate the interrelationships among the promotion strategies and their

  13. Overview of the ITER Tokamak complex building and integration of plant systems toward construction

    Energy Technology Data Exchange (ETDEWEB)

    Cordier, Jean-Jacques, E-mail: jean-jacques.cordier@iter.org [ITER Organization, Route de Vinon sur Verdon, 13115 Saint Paul Lez Durance (France); Bak, Joo-Shik [ITER Organization, Route de Vinon sur Verdon, 13115 Saint Paul Lez Durance (France); Baudry, Alain [Engage Consortium, Route de Vinon sur Verdon, 13115 Saint Paul Lez Durance (France); Benchikhoune, Magali [Fusion For Energy (F4E), c/ Josep Pla, n.2, Torres Diagonal Litoral, E-08019 Barcelona (Spain); Carafa, Leontin; Chiocchio, Stefano [ITER Organization, Route de Vinon sur Verdon, 13115 Saint Paul Lez Durance (France); Darbour, Romaric [Fusion For Energy (F4E), c/ Josep Pla, n.2, Torres Diagonal Litoral, E-08019 Barcelona (Spain); Elbez, Joelle; Di Giuseppe, Giovanni; Iwata, Yasuhiro; Jeannoutot, Thomas; Kotamaki, Miikka; Kuehn, Ingo; Lee, Andreas; Levesy, Bruno; Orlandi, Sergio [ITER Organization, Route de Vinon sur Verdon, 13115 Saint Paul Lez Durance (France); Packer, Rachel [Engage Consortium, Route de Vinon sur Verdon, 13115 Saint Paul Lez Durance (France); Patisson, Laurent; Reich, Jens; Rigoni, Giuliano [ITER Organization, Route de Vinon sur Verdon, 13115 Saint Paul Lez Durance (France); and others

    2015-10-15

    The ITER Tokamak complex consists of Tokamak, diagnostic and tritium buildings. The Tokamak machine is located in the bioshield pit of the Tokamak building. Plant systems are implemented in the three buildings and are strongly interfacing with the Tokamak. The reference baseline (3D) configuration is a set of over 1000 models that today defines in an exhaustive way the overall layout of Tokamak and plant systems, needed for fixing the interfaces and to complete the construction design of the buildings. During the last two years, one of the main ITER challenges was to improve the maturity of the plant systems layout in order to confirm their integration in the building final design and freeze the interface definitions in-between the systems and to the buildings. The propagation of safety requirements in the design of the nuclear building like confinement, fire zoning and radiation shielding is of first priority. A major effort was placed by ITER Organization together with the European Domestic Agency (F4E) and the Architect Engineer as a joint team to fix the interfaces and the loading conditions to buildings. The most demanding systems in terms of interface definition are water cooling, cryogenic, detritiation, vacuum, cable trays and building services. All penetrations through the walls for piping, cables and other equipment have been defined, as well as all temporary openings needed for the installation phase. Project change requests (PCR) impacting the Tokamak complex buildings have been implemented in a tight allocated time schedule. The most demanding change was to implement a new design of the Tokamak basic machine supporting system. The 18 supporting columns of the cryostat (2001 baseline) were replaced at the end of 2012 by a concrete crown and radial concrete ribs linked to the basemat and to the bioshield surrounding the Tokamak. The change was implemented successfully in the building construction design to allow basemat construction phase being performed

  14. Analysis of Latest Experience in Design of Industrial Buildings Reconstruction by Constructing Additional Interfloor Overlaps

    Science.gov (United States)

    Peshnina, I.; Sinitsina, O.

    2017-11-01

    The study relevance is determined by the increasing interest in reconstruction of city historical centers and located in the area of industrial buildings the functional profile of which needs to be changed. The problem of obtaining extra usable spaces in the historical centers of cities is solved by raising the number of storeys in the buildings which can be achieved by the construction of additional built-in inter-floor overlaps. The article is dedicated to the analysis of the recent years’ experience in reconstruction design involving this method in our country and abroad, in the Netherlands, in particular. The article presents the results of the analysis of the experience in reconstruction of the objects by constructing additional inter-floor overlaps and aims to define the optimum construction solution for built-in inter-floor overlapping and to develop non-existing solutions for wide application of this method in the reconstruction of a building with non-unified and unmodulated parameters. It was determined as expedient to apply a monolith reinforced concrete slab with the use of steel profiled flooring as a formwork and reinforcement and steel beams designed as “Built-in Beams” for the construction of built-in inter-floor overlaps in reconstruction. The article will be useful for specialists doing research in the sphere of reconstruction of the buildings and for the practical activity of design engineers.

  15. Experimental Study of an Integrated System with Diffuse Ceiling Ventilation and Thermally Activated Building Constructions

    DEFF Research Database (Denmark)

    Zhang, Chen; Yu, Tao; Heiselberg, Per

    The experiments are carried out in a climate chamber located at the Department of Civil Engineering Aalborg University. The objective of the experiments is to evaluate the performance of the system combining diffuse ceiling ventilation and thermally activated building construction (TABS) in terms...

  16. Integrated Solution in an Office Room with Diffuse Ceiling Ventilation and Thermally Activated Building Constructions

    DEFF Research Database (Denmark)

    Zhang, Chen; Heiselberg, Per Kvols; Pomianowski, Michal Zbigniew

    2015-01-01

    An integrated system is proposed in this study to combine diffuse ceiling ventilation with a thermally activated building construction (TABS), aiming to provide cooling/ heating and ventilation to an office room all year around. The performance of the integrated system is evaluated by full...

  17. Defects as a quality problem in newly constructed public buildings in ...

    African Journals Online (AJOL)

    ... periods of up to six months. This further escalated the cost to public client. The study showed that defects must be avoided by instituting quality assurance programmes right through the life cycle of building projects, particularly at the design and construction stages. Journal of Civil Engineering Research and Practice Vol.

  18. Using the statistic tolerance interval for control measuring of building construction

    Directory of Open Access Journals (Sweden)

    Jana Neumanová

    2007-06-01

    Full Text Available The basic requierement for ensuring of geometrical accuracy is knowledge of all requierements on accuracy of geometrical parameters on finished construction. It makes safe function of construction from the point of view safeness, durability and reliability. It is necessary to know the selected functional geometrical parameters (parameters operate about functional qualification construction and their limiting deviations. The limiting deviations of geometrical parameters are prescribed at the technical documentations, projection documentations etc. If these limiting deviations of buildings are unavailable or much free (both of the cases are uneconomic, it should take account of the technological quality building process and use empirically determinated tolerance extends, which reply for technological possibility of construction. Otherwise carried out study of the capability building process, so-called check of statistical stability building process. The subject of this paper is solving of empirically determinating of the tolerance extends which may be neither parametrical extend for file which has normal division of watch sign or non-parametrical extend which has not normal division of watch sign.

  19. College Students Constructing Collective Knowledge of Natural Science History in a Collaborative Knowledge Building Community

    Science.gov (United States)

    Hong, Huang-Yao; Chai, Ching Sing; Tsai, Chin-Chung

    2015-01-01

    This study investigates whether engaging college students (n = 42) in a knowledge building environment would help them work as a community to construct their collective knowledge of history of science and, accordingly, develop a more informed scientific view. The study adopted mixed-method analyses and data mainly came from surveys and student…

  20. RADON PREVENTION IN THE DESIGN AND CONSTRUCTION OF SCHOOLS AND OTHER LARGE BUILDINGS

    Science.gov (United States)

    The paper discusses radon prevention in the design and construction of schools and other large buildings. ased on studies in progress for the past 3 years, the U.S. EPA's Office of Research and Development (ORD) has started incorporating radon control measures into the design and...

  1. Building America Case Study: Field Testing of Compartmentalization Methods for Multifamily Construction (Fact Sheet)

    Energy Technology Data Exchange (ETDEWEB)

    2015-01-01

    The 2012 IECC has an airtightness requirement of 3 air changes per hour at 50 Pascals test pressure for both single family and multifamily construction in Climate Zones 3-8. Other programs (LEED, ASHRAE 189, ASHRAE 62.2) have similar or tighter compartmentalization requirements, thus driving the need for easier and more effective methods of compartmentalization in multifamily buildings.

  2. Expanded Organic Building Units for the Construction of Highly Porous Metal-Organic Frameworks

    NARCIS (Netherlands)

    Kong, G.Q.; Han, Z.D.; He, Y.; Qu, S.; Zhou, W.; Yildirim, T.; Krishna, R.; Zou, C.; Chen, B.; Wu, C.D.

    2013-01-01

    wo new organic building units that contain dicarboxylate sites for their self-assembly with paddlewheel [Cu2(CO2)4] units have been successfully developed to construct two isoreticular porous metal-organic frameworks (MOFs), ZJU-35 and ZJU-36, which have the same tbo topologies (Reticular Chemistry

  3. Law Governing School Property and School Building Construction. School Law Casebook Series No. 7.

    Science.gov (United States)

    Garber, Lee O.; Edwards, Newton

    Legal principles of the law governing school property and school building construction are considered in the first section of this casebook. From the legal principles mentioned, the most significant are selected and illustrated with appropriate court decisions in the second section. Many of the cases selected illustrate more than one legal…

  4. Life-Cycle Evaluation of Concrete Building Construction as a Strategy for Sustainable Cities

    Energy Technology Data Exchange (ETDEWEB)

    Stadel, Alexander [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Drexel Univ., Philadelphia, PA (United States); Gursel, Petek [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States); Masanet, Eric [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2012-01-18

    Structural materials in commercial buildings in the United States account for a significant fraction of national energy use, resource consumption, and greenhouse gas (GHG) emissions. Robust decisions for balancing and minimizing these various environmental effects require that structural materials selections follow a life-cycle, systems modeling approach. This report provides a concise overview of the development and use of a new life-cycle assessment (LCA) model for structural materials in U.S. commercial buildings-the Berkeley Lab Building Materials Pathways (B-PATH) model. B-PATH aims to enhance environmental decision-making in the commercial building LCA, design, and planning communities through the following key features: (1) Modeling of discrete technology options in the production, transportation, construction, and end of life processes associated U.S. structural building materials; (2) Modeling of energy supply options for electricity provision and directly combusted fuels across the building life cycle; (3) Comprehensiveness of relevant building mass and energy flows and environmental indicators; (4) Ability to estimate modeling uncertainties through easy creation of different life-cycle technology and energy supply pathways for structural materials; and (5) Encapsulation of the above features in a transparent public use model. The report summarizes literature review findings, methods development, model use, and recommendations for future work in the area of LCA for commercial buildings.

  5. The importance of building construction materials relative to other factors affecting structure survival during wildfire

    Science.gov (United States)

    Syphard, Alexandra D.; Brennan, Teresa J.; Keeley, Jon E.

    2017-01-01

    Structure loss to wildfire is a serious problem in wildland-urban interface areas across the world. Laboratory experiments suggest that fire-resistant building construction and design could be important for reducing structure destruction, but these need to be evaluated under real wildfire conditions, especially relative to other factors. Using empirical data from destroyed and surviving structures from large wildfires in southern California, we evaluated the relative importance of building construction and structure age compared to other local and landscape-scale variables associated with structure survival. The local-scale analysis showed that window preparation was especially important but, in general, creating defensible space adjacent to the home was as important as building construction. At the landscape scale, structure density and structure age were the two most important factors affecting structure survival, but there was a significant interaction between them. That is, young structure age was most important in higher-density areas where structure survival overall was more likely. On the other hand, newer-construction structures were less likely to survive wildfires at lower density. Here, appropriate defensible space near the structure and accessibility to major roads were important factors. In conclusion, community safety is a multivariate problem that will require a comprehensive solution involving land use planning, fire-safe construction, and property maintenance.

  6. Implementation of Building Information Modeling (BIM) in Construction: A Comparative Case Study

    Science.gov (United States)

    Rowlinson, Steve; Collins, Ronan; Tuuli, Martin M.; Jia, Yunyan

    2010-05-01

    Building Information Modeling (BIM) approach is increasingly adopted in coordination of construction projects, with a number of parties providing BIM services and software solutions. However, the empirical impact of BIM on construction industry has yet to be investigated. This paper explores the interaction between BIM and the construction industry during its implementation, with a specific focus on the empirical impacts of BIM on the design and construction processes and professional roles during the process. Two cases were selected from recent construction projects coordinated with BIM systems: the Venetian Casino project in Macau and the Cathy Pacific Cargo Terminal project in Hong Kong. The former case illustrates how the conflicts emerged during the design process and procurement were addressed by adopting a BIM approach. The latter demonstrates how the adoption of BIM altered the roles of architect, contractor, and sub-contractors involved in the project. The impacts of BIM were critically reviewed and discussed.

  7. The Accelerated Window Work Method Using Vertical Formwork for Tall Residential Building Construction

    Directory of Open Access Journals (Sweden)

    Taehoon Kim

    2018-02-01

    Full Text Available In tall residential building construction, there is a process gap between the window work and the structural work. This process gap extends the total period of the project and increases its cost. In addition, as this process gap increases external exposure to noise and dust, it negatively affects the environment of a site and often causes civil complaints. This paper introduces a new window work process called the accelerated window work (AWW method, which minimizes the process gap and can reduce construction cost and duration and the number of civil complaints. We provide technical details and management elements of the AWW method with a case study that demonstrates the reductions in construction costs and duration compared with the conventional method. This work contributes to the body of knowledge in window work in tall buildings by introducing and validating a new window work method and process. The proposed method will be useful for practitioners who are under short-term constraints.

  8. Construction cost prediction model for conventional and sustainable college buildings in North America

    Directory of Open Access Journals (Sweden)

    Othman Subhi Alshamrani

    2017-03-01

    Full Text Available The literature lacks in initial cost prediction models for college buildings, especially comparing costs of sustainable and conventional buildings. A multi-regression model was developed for conceptual initial cost estimation of conventional and sustainable college buildings in North America. RS Means was used to estimate the national average of construction costs for 2014, which was subsequently utilized to develop the model. The model could predict the initial cost per square feet with two structure types made of steel and concrete. The other predictor variables were building area, number of floors and floor height. The model was developed in three major stages, such as preliminary diagnostics on data quality, model development and validation. The developed model was successfully tested and validated with real-time data.

  9. Solar building construction - new technologies; Solares Bauen - Neue Technologien fuer Gebaeude

    Energy Technology Data Exchange (ETDEWEB)

    Luther, J.; Voss, K.; Wittwer, V. [Fraunhofer-Inst. fuer Solare Energiesysteme, Freiburg (Germany). Abt. ``Thermische und Optische Systeme``

    1998-02-01

    There is an increasing demand for integrated building concepts in order to reduce energy consumption. Building design, construction and heating, ventilation and air-conditioning (HVAC) technology are decisive in this respect. Thus, an essentially higher energy efficiency is achieved and solar energy becomes the main energy source. An `active building envelope` assumes the task of controlling the energy flows between inside and outside. This paper reports on new components, system concepts and planning tools for solar building. (orig.) [Deutsch] Fuer zukuenftige Bauten werden in hohem Masse Forderungen nach integrierten Konzepten zur Begrenzung des Energieverbrauchs gestellt. Gestalt, Konstruktion und Klimatechnik sind dabei massgebliche Einflussfaktoren. Hierdurch wird eine wesentlich hoehere Energieeffizienz erzielt und Solarenergie kann die uebrigen Energiequellen zurueckdraengen. Eine `aktive Gebaeudehuelle` uebernimmt die Aufgabe, den Energiefluss zwischen Innen und Aussen zu steuern. Der Beitrag berichtet ueber neue Komponenten, Systemkonzepte und Planungswerkzeuge fuer das Solare Bauen. (orig.)

  10. Building information modelling (BIM) after ten years: Malaysian construction players’ perception of BIM

    Science.gov (United States)

    Latiffi, A. Ahmad; Brahim, J.; Fathi, M. S.

    2017-08-01

    Building Information Modelling (BIM) concept has expanded widely in many countries for more than a decade with its role of improving current practices in construction projects. However, the understanding of BIM differs among construction players, depending on how construction players utilize the concept in their projects. Therefore, this paper aims to explore the understanding of BIM concept among construction players in the Malaysian construction industry. A literature review on BIM concept and semi-structured interviews with construction players in BIM such as client, civil and structural (C&S) engineer and mechanical and electrical (M&E) engineer, quantity surveyor (QS), contractor, facilities manager and BIM consultant have been conducted in order to achieve this study’s the aim. The results show that the understanding of BIM concept among the construction players is limited to BIM as a process and technology. It is important for the construction players to improve their understanding of BIM as it can be used to enhance performance and productivity of construction projects.

  11. A supermolecular building approach for the design and construction of metal–organic frameworks

    KAUST Repository

    Guillerm, Vincent

    2014-07-10

    In this review, we describe two recently implemented conceptual approaches facilitating the design and deliberate construction of metal–organic frameworks (MOFs), namely supermolecular building block (SBB) and supermolecular building layer (SBL) approaches. Our main objective is to offer an appropriate means to assist/aid chemists and material designers alike to rationally construct desired functional MOF materials, made-to-order MOFs. We introduce the concept of net-coded building units (net-cBUs), where precise embedded geometrical information codes uniquely and matchlessly a selected net, as a compelling route for the rational design of MOFs. This concept is based on employing pre-selected 0-periodic metal–organic polyhedra or 2-periodic metal–organic layers, SBBs or SBLs respectively, as a pathway to access the requisite net-cBUs. In this review, inspired by our success with the original rht-MOF, we extrapolated our strategy to other known MOFs via their deconstruction into more elaborate building units (namely polyhedra or layers) to (i) elucidate the unique relationship between edge-transitive polyhedra or layers and minimal edge-transitive 3-periodic nets, and (ii) illustrate the potential of the SBB and SBL approaches as a rational pathway for the design and construction of 3-periodic MOFs. Using this design strategy, we have also identified several new hypothetical MOFs which are synthetically targetable.

  12. Application of Microbial Biopolymers as an Alternative Construction Binder for Earth Buildings in Underdeveloped Countries

    Directory of Open Access Journals (Sweden)

    Ilhan Chang

    2015-01-01

    Full Text Available Earth buildings are still a common type of residence for one-third of the world’s population. However, these buildings are not durable or resistant against earthquakes and floods, and this amplifies their potential harm to humans. Earthen construction without soil binders (e.g., cement is known to result in poor strength and durability performance of earth buildings. Failure to use construction binders is related to the imbalance in binder prices in different countries. In particular, the price of cement in Africa, Middle East, and Southwest Asia countries is extremely high relative to the global trend of consumer goods and accounts for the limited usage of cement in those regions. Moreover, environmental concerns regarding cement usage have recently risen due to high CO2 emissions. Meanwhile, biopolymers have been introduced as an alternative binder for soil strengthening. Previous studies and feasibility attempts in this area show that the mechanical properties (i.e., compressive strength of biopolymer mixed soil blocks (i.e, both 1% xanthan gum and 1% gellan gum satisfied the international criteria for binders used in earthen structures. Economic and market analyses have demonstrated that the biopolymer binder has high potential as a self-sufficient local construction binder for earth buildings where the usage of ordinary cement is restricted.

  13. Building America Case Study: Design Guidance for Passive Vents in New Construction Multifamily Buildings, New York, New York

    Energy Technology Data Exchange (ETDEWEB)

    2016-02-01

    This document addresses the use of passive vents as a source of outdoor air in multifamily buildings. The challenges associated with implementing passive vents and the factors affecting performance are outlined. A comprehensive design methodology and quantified performance metrics are provided. Two hypothetical design examples are provided to illustrate the process. This document is intended to be useful to designers, decision-makers, and contractors implementing passive ventilation strategies. It is also intended to be a resource for those responsible for setting high-performance building program requirements, especially pertaining to ventilation and outdoor air. To ensure good indoor air quality, a dedicated source of outdoor air is an integral part of high-performance buildings. Presently, there is a lack of guidance pertaining to the design and installation of passive vents, resulting in poor system performance. This report details the criteria necessary for designing, constructing, and testing passive vent systems to enable them to provide consistent and reliable levels of ventilation air from outdoors.

  14. Energy-saving building construction in Leipzig; Energiesparendes Bauen in Leipzig

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    2010-07-01

    Construction of a new building or modernization of an older one is a great challenge. Complex decisions must be made, with long-term effects. This brochure presents practical information on modernization and energy conservation, thermal insulation, funding options, smart houses and barrier-free bathrooms, as well as modern heating systems. Subjects: List of suppliers; Modernization and energy conservation for environment-friendly and cost-saving buildings, Successful modernization; Lifts; Heating systems; SmartHouses; Modern ventilation systems for higher room air quality; Barrier-free bathrooms; An exemplary modernization project; Funding programmes. (orig.)

  15. Application of Boosting Regression Trees to Preliminary Cost Estimation in Building Construction Projects.

    Science.gov (United States)

    Shin, Yoonseok

    2015-01-01

    Among the recent data mining techniques available, the boosting approach has attracted a great deal of attention because of its effective learning algorithm and strong boundaries in terms of its generalization performance. However, the boosting approach has yet to be used in regression problems within the construction domain, including cost estimations, but has been actively utilized in other domains. Therefore, a boosting regression tree (BRT) is applied to cost estimations at the early stage of a construction project to examine the applicability of the boosting approach to a regression problem within the construction domain. To evaluate the performance of the BRT model, its performance was compared with that of a neural network (NN) model, which has been proven to have a high performance in cost estimation domains. The BRT model has shown results similar to those of NN model using 234 actual cost datasets of a building construction project. In addition, the BRT model can provide additional information such as the importance plot and structure model, which can support estimators in comprehending the decision making process. Consequently, the boosting approach has potential applicability in preliminary cost estimations in a building construction project.

  16. Application of Boosting Regression Trees to Preliminary Cost Estimation in Building Construction Projects

    Directory of Open Access Journals (Sweden)

    Yoonseok Shin

    2015-01-01

    Full Text Available Among the recent data mining techniques available, the boosting approach has attracted a great deal of attention because of its effective learning algorithm and strong boundaries in terms of its generalization performance. However, the boosting approach has yet to be used in regression problems within the construction domain, including cost estimations, but has been actively utilized in other domains. Therefore, a boosting regression tree (BRT is applied to cost estimations at the early stage of a construction project to examine the applicability of the boosting approach to a regression problem within the construction domain. To evaluate the performance of the BRT model, its performance was compared with that of a neural network (NN model, which has been proven to have a high performance in cost estimation domains. The BRT model has shown results similar to those of NN model using 234 actual cost datasets of a building construction project. In addition, the BRT model can provide additional information such as the importance plot and structure model, which can support estimators in comprehending the decision making process. Consequently, the boosting approach has potential applicability in preliminary cost estimations in a building construction project.

  17. Expediency of application of explosion-relief constructions to ensure explosion resistance of production buildings

    Directory of Open Access Journals (Sweden)

    Lyapin Anton

    2016-01-01

    Full Text Available The article presents a model of economic evaluation and selection of explosion-relief constructions (ERC, as well as determination of explosion protection efficiency of buildings and structures provided on a stage of construction. It has been shown that definition of economic efficiency of ERС is the evaluation of its application for buildings with remote or automatically controlled production. It has been determined that an important role in design of explosive industrial facilities is played by selection of the economically feasible and effective materials for ERC. When selecting materials it is necessary to consider probability and yield of explosions. Necessity to create the methods allow considering such probability has been revealed.

  18. Action for sustainability: preparing an African plan for sustainable building and construction

    CSIR Research Space (South Africa)

    Du Plessis, C

    2005-09-01

    Full Text Available still being able to enjoy the awesome natural beauty, abundant resources and biodiversity for which the continent is famous. The building and construction sector, in partnership with its stakeholders, will therefore have to prepare itself... (including such needs as maximising shareholder value and achieving a high standard of living). This dualistic tension can be found in the debates around weak and strong sustainability (Turner and Pearce, 1993), Brown and Green Agendas (Mc...

  19. Sustainable Decision-Making in Civil Engineering, Construction and Building Technology

    OpenAIRE

    Edmundas Kazimieras Zavadskas; Jurgita Antucheviciene; Tatjana Vilutiene; Hojjat Adeli

    2017-01-01

    Sustainable decision-making in civil engineering, construction and building technology can be supported by fundamental scientific achievements and multiple-criteria decision-making (MCDM) theories. The current paper aims at overviewing the state of the art in terms of published papers related to theoretical methods that are applied to support sustainable evaluation and selection processes in civil engineering. The review is limited solely to papers referred to in the Clarivate Analytic Web of...

  20. Building Information Modelling in UK Construction Projects: A State of the Art Review

    OpenAIRE

    Georgiadou, M.C.

    2016-01-01

    This paper aims to present a state-of-the-art review of the scope and practical implications of the Building Information Modelling (BIM) platform in the UK construction practice. Theoretical developments suggest that BIM is an integration of both product and process innovation, not just a disparate set of software tools. BIM provides effective collaboration, visual representation and data management, which enable the smooth flow of information throughout the project’s lifecycle. The most freq...

  1. Manhattan Project buildings and facilities at the Hanford Site: A construction history

    Energy Technology Data Exchange (ETDEWEB)

    Gerber, M.S.

    1993-09-01

    This document thoroughly examines the role that the Hanford Engineer Works played in the Manhattan project. The historical aspects of the buildings and facilities are characterized. An in depth look at the facilities, including their functions, methods of fabrication and appearance is given for the 100 AREAS, 200 AREAS, 300 AREAS, 500, 800 and 900 AREAS, 600 AREA, 700 AREA, 1100 AREA and temporary construction structures.

  2. Exploring the Importance of Employing Bio and Nano-Materials for Energy Efficient Buildings Construction

    Directory of Open Access Journals (Sweden)

    Mona Naguib

    2017-03-01

    Full Text Available The continued and increasing use of ordinary building materials to house the ever-growing world population ensures growing contributions of carbon (C to the active carbon cycle through carbon dioxide (C02 emissions from combustion and chemical reactions in the raw material to the atmosphere. To minimize this, materials should be conserved, reduce their unnecessary use, produce them more benignly and make them last longer, recycle and reuse materials. Thus, paper will focus on exploring alternative building materials and systems that can be developed in order to balance atmospheric carbon dioxide.  It also presents the Bio-inspired architecture approach that embraces the eco-friendly practices of using Biomaterials and Nano-materials for sustainable dwelling construction through a number of examples that shows how a building can be strongly related to its site.

  3. Sustainable Decision-Making in Civil Engineering, Construction and Building Technology

    Directory of Open Access Journals (Sweden)

    Edmundas Kazimieras Zavadskas

    2017-12-01

    Full Text Available Sustainable decision-making in civil engineering, construction and building technology can be supported by fundamental scientific achievements and multiple-criteria decision-making (MCDM theories. The current paper aims at overviewing the state of the art in terms of published papers related to theoretical methods that are applied to support sustainable evaluation and selection processes in civil engineering. The review is limited solely to papers referred to in the Clarivate Analytic Web of Science core collection database. As the focus is on multiple-criteria decision-making, it aims at reviewing how the papers on MCDM developments and applications have been distributed by period of publishing, by author countries and institutions, and by journals. Detailed analysis of 2015–2017 journal articles from two Web of Science categories (engineering civil and construction building technology is presented. The articles are grouped by research domains, problems analyzed and the decision-making approaches used. The findings of the current review paper show that MCDM applications have been constantly growing and particularly increased in the last three years, confirming the great potential and prospects of applying MCDM methods for sustainable decision-making in civil engineering, construction and building technology.

  4. Economic Analysis of USN-Based Data Acquisition Systems in Tall Building Construction

    Directory of Open Access Journals (Sweden)

    Hyunsu Lim

    2017-08-01

    Full Text Available The successful construction of tall buildings requires effective construction management based on various quantitative data. The recent development of ubiquitous sensor networks (USNs enables massive amounts of data to be collected in real-time. However, the application of USN-based data acquisition systems to repetitive tasks on typical floors of tall buildings can be inefficient, because this may involve the repetitive reinstallation of sensors and the repositioning of data loggers and routers to enable continuous data transfer. To minimize this cumbersome work, a modified data acquisition method using reusable sensor nodes and mobile devices can be a useful solution. This study analyzes the economic aspects of the USN-based systems for concrete temperature monitoring by using the activity-based costing technique. The case study shows that the modified system can reduce the process cost by about 19%. It can also reduce the resource input time of management by about 55%, freeing up time for other management activities. Moreover, the cost benefits should scale up as projects increasingly require more measurement and monitoring. This study should facilitate the application of USN-based information management systems, particularly for tall building construction.

  5. PRIVATE AND PUBLIC ENTERPRISE: FLETCHER CONSTRUCTION AND THE BUILDING OF NEW ZEALAND

    Directory of Open Access Journals (Sweden)

    Astrid Baker

    2002-01-01

    Full Text Available This paper shows how a New Zealand company, Fletcher Construction, created wealth in partnership with the state. The first Labour government was elected in 1935 with a firm commitment to full employment and a broad social security system. Because Labour’s determination to get things done through local industry coincided with James Fletcher’s, and then his son’s, drive for company expansion and profits. Fletchers’ design or construction of roads, wharves, saw-mills, flour mills, pulp mills, paper mills, factories, railway stations, university buildings, hospitals, department stores, office blocks, houses, and ownership and management of stone quarries, brickworks and forests, left a mark in almost every town and city in the country. Many projects required building methods and materials new to New Zealand, the innovative use of traditional materials, large-scale plant, specialist, skilled staff and technical know-how from United States and British construction and engineering firms. In this way Fletcher projects drew together many different suppliers, equipment makers, skilled tradesmen and financiers. As a provider of employment in construction and manufacturing, with easy access to established business and political leaders and a powerful influence on policy making, the company became a potent force in New Zealand’s full employment welfare state.

  6. Sustainability assessment, rating systems and historical buildings Case study: Rehabilitated construction in a university site

    Directory of Open Access Journals (Sweden)

    Sadrykia Somayeh

    2016-01-01

    Full Text Available This paper explores the relationship between the indicators and different factors that “rating systems for green projects” concentrates on, and principles and factors considered in the rehabilitation of historical buildings. In recent years, different methods and systems concerned and improved for assessing environmental sustainability. LEED (Leadership in Energy and Environmental Design and BREEAM (Building Research Establishment (BRE Environmental Assessment Method are two most commonly used rating systems, established in U.S and UK. These systems comprise some categories and different factors to achieve environmentally responsible design. Firstly, this study focuses on the list of rating systems indicators and criteria. Secondly this paper investigates a historical rehabilitated building in the site of Tabriz Art University, as a case study and has tried to compile its green design elements. Finally, this work intends to compare mentioned elements with indicators and factors of building rating systems. Findings of the study revealed that “Materials and Resources”, “indoor environmental quality” and also “Sustainable Sites” ,the most significant indicator of rating systems, had major and important role in the rehabilitation of the building. Beyond this materials’ life cycle was considerable in construction.

  7. Comparative analysis of the construction solution variants for flat arch coverings of buildings

    Directory of Open Access Journals (Sweden)

    Ibragimov Aleksandr Mayorovich

    2014-03-01

    Full Text Available Arch structures of long span buildings’ coverings are more beneficial in respect to material expenses, than beam and frame systems. Constructive schemes of roof frameworks of arch coverings are diverse, which means their operation under loading differs much. The authors offer a number of construction solutions for flat arch coverings of long span buildings. The comparative analysis of these construction solutions is presented. The operation of radial link arch is observed. The arch consists of discontinuous top chord and radial bowstring under the single load (uniformly distributed and concentrated in nods with different spans and rises. The problem of radial link arch optimization is solved in dependence with arising forces and rise. The optimal camber of arch was found. In further works the authors plan to analyze spans more than 36 meters and solve the problem in case of asymmetrical loadings.

  8. Monitoring of Building Construction by 4D Change Detection Using Multi-temporal SAR Images

    Directory of Open Access Journals (Sweden)

    C. H. Yang

    2017-05-01

    Full Text Available Monitoring urban changes is important for city management, urban planning, updating of cadastral map, etc. In contrast to conventional field surveys, which are usually expensive and slow, remote sensing techniques are fast and cost-effective alternatives. Spaceborne synthetic aperture radar (SAR sensors provide radar images captured rapidly over vast areas at fine spatiotemporal resolution. In addition, the active microwave sensors are capable of day-and-night vision and independent of weather conditions. These advantages make multi-temporal SAR images suitable for scene monitoring. Persistent scatterer interferometry (PSI detects and analyses PS points, which are characterized by strong, stable, and coherent radar signals throughout a SAR image sequence and can be regarded as substructures of buildings in built-up cities. Attributes of PS points, for example, deformation velocities, are derived and used for further analysis. Based on PSI, a 4D change detection technique has been developed to detect disappearance and emergence of PS points (3D at specific times (1D. In this paper, we apply this 4D technique to the centre of Berlin, Germany, to investigate its feasibility and application for construction monitoring. The aims of the three case studies are to monitor construction progress, business districts, and single buildings, respectively. The disappearing and emerging substructures of the buildings are successfully recognized along with their occurrence times. The changed substructures are then clustered into single construction segments based on DBSCAN clustering and α-shape outlining for object-based analysis. Compared with the ground truth, these spatiotemporal results have proven able to provide more detailed information for construction monitoring.

  9. Monitoring of Building Construction by 4D Change Detection Using Multi-temporal SAR Images

    Science.gov (United States)

    Yang, C. H.; Pang, Y.; Soergel, U.

    2017-05-01

    Monitoring urban changes is important for city management, urban planning, updating of cadastral map, etc. In contrast to conventional field surveys, which are usually expensive and slow, remote sensing techniques are fast and cost-effective alternatives. Spaceborne synthetic aperture radar (SAR) sensors provide radar images captured rapidly over vast areas at fine spatiotemporal resolution. In addition, the active microwave sensors are capable of day-and-night vision and independent of weather conditions. These advantages make multi-temporal SAR images suitable for scene monitoring. Persistent scatterer interferometry (PSI) detects and analyses PS points, which are characterized by strong, stable, and coherent radar signals throughout a SAR image sequence and can be regarded as substructures of buildings in built-up cities. Attributes of PS points, for example, deformation velocities, are derived and used for further analysis. Based on PSI, a 4D change detection technique has been developed to detect disappearance and emergence of PS points (3D) at specific times (1D). In this paper, we apply this 4D technique to the centre of Berlin, Germany, to investigate its feasibility and application for construction monitoring. The aims of the three case studies are to monitor construction progress, business districts, and single buildings, respectively. The disappearing and emerging substructures of the buildings are successfully recognized along with their occurrence times. The changed substructures are then clustered into single construction segments based on DBSCAN clustering and α-shape outlining for object-based analysis. Compared with the ground truth, these spatiotemporal results have proven able to provide more detailed information for construction monitoring.

  10. The impact of possession on legality of mortgage registered on a building under construction: With case law

    Directory of Open Access Journals (Sweden)

    Vicković Tanja

    2016-01-01

    Full Text Available The expansion of the subject of a mortgage to buildings under construction is a considerable step forward in regulating mortgages. It is not possible to register ownership rights on buildings under construction. A person acquiring ownership does not have the possibility to protect his rights. Acquiring ownership rights to a building under construction is tied to possession. This is detrimental to the principle of publicity which in turn erodes the principle of reliance. Validity of the mortgage is tied to the possession over the mortgaged real estate at the time of its registration. Such position of the courts challenges the very essence of mortgage.

  11. COMPARATIVE STUDY ON THE CHOICE OF BUILDING MATERIALS FOR CONSTRUCTING A HOUSE

    Directory of Open Access Journals (Sweden)

    Adelaida Cristina HONŢUŞ

    2014-12-01

    Full Text Available For some, building one’s own home can be a unique opportunity in a lifetime. That is why the choice of project, materials and finishings is paramount. Any homeowner wants a comfortable house, which is durable, insulated, easy to maintain, and, why not, built with least costs, but using quality materials. Brick and Autoclaved Aerated Concrete (AAC are the most common materials on the Romanian market when it comes to building a house. Although these two materials have been on the market for years, most manufacturers still use them because of the advantages presented in time by houses constructed out of them. Brick or AAC homes have a longer life compared to the ones erected with other construction materials and feature increased safety in terms of structural strength. Also, brick or AAC houses have the advantage of much better sound insulation than wood, for example. In our country there are sufficient resources for masonry, depending on the cost invested by the owner, at the same time displaying the characteristic properties that can provide the required safety of the building. Ceramic bricks and blocks produced here have diverse sizes and shapes, being able to meet the demands of any architect and customer

  12. Towards Integrated Team Practice: A Case of Malaysian Industrialised Building System (IBS Construction Projects

    Directory of Open Access Journals (Sweden)

    Mohd Nawi Mohd Nasrun

    2014-01-01

    Full Text Available Problems associated with fragmentation in the traditional construction process, such as isolation of professionals, lack of co-ordination between design and construction, and the sequential manner of its processes, has impacted on construction performance leading to a lack of integration, wastage, low productivity and efficiency. Integrated team practice is perceived as paramount. Unfortunately, there has a limitation of study focus on the dimension of fully integrated team especially for Malaysian Industrialised Building System (IBS projects. Accordingly, this research paper explores and identifies the dimension of fully integrated team from the traditional approach and conduct a validation process for implementing it in Malaysian IBS projects. The research presented uses interviews case study to obtain qualitative data. It was found that the dimension of fully integrated team from the traditional construction process could apply to the Malaysian IBS projects. Suggestions on how an integrated team practice in IBS design and construction process in order to minimise the fragmentation gaps will be concluded.

  13. Integrating Building Information Modeling and Health and Safety for Onsite Construction

    Science.gov (United States)

    Ganah, Abdulkadir; John, Godfaurd A.

    2014-01-01

    Background Health and safety (H&S) on a construction site can either make or break a contractor, if not properly managed. The usage of Building Information Modeling (BIM) for H&S on construction execution has the potential to augment practitioner understanding of their sites, and by so doing reduce the probability of accidents. This research explores BIM usage within the construction industry in relation to H&S communication. Methods In addition to an extensive literature review, a questionnaire survey was conducted to gather information on the embedment of H&S planning with the BIM environment for site practitioners. Results The analysis of responses indicated that BIM will enhance the current approach of H&S planning for construction site personnel. Conclusion From the survey, toolbox talk will have to be integrated with the BIM environment, because it is the predominantly used procedure for enhancing H&S issues within construction sites. The advantage is that personnel can visually understand H&S issues as work progresses during the toolbox talk onsite. PMID:25830069

  14. Integrating building information modeling and health and safety for onsite construction.

    Science.gov (United States)

    Ganah, Abdulkadir; John, Godfaurd A

    2015-03-01

    Health and safety (H&S) on a construction site can either make or break a contractor, if not properly managed. The usage of Building Information Modeling (BIM) for H&S on construction execution has the potential to augment practitioner understanding of their sites, and by so doing reduce the probability of accidents. This research explores BIM usage within the construction industry in relation to H&S communication. In addition to an extensive literature review, a questionnaire survey was conducted to gather information on the embedment of H&S planning with the BIM environment for site practitioners. The analysis of responses indicated that BIM will enhance the current approach of H&S planning for construction site personnel. From the survey, toolbox talk will have to be integrated with the BIM environment, because it is the predominantly used procedure for enhancing H&S issues within construction sites. The advantage is that personnel can visually understand H&S issues as work progresses during the toolbox talk onsite.

  15. The Use Potential of Traditional Building Materials for the Realization of Structures by Modern Methods of Construction

    Directory of Open Access Journals (Sweden)

    Spišáková Marcela

    2015-11-01

    Full Text Available The sustainable building has taken off in recent years with many investors looking for new and different methods of construction. The traditional building materials can be made out of natural materials, while others can help to lower energy costs of the occupant once built. Regardless of what the goal of the investor is, traditional building materials and their use is on the rise. The submitted paper provides an overview of natural building materials and possible modern building systems using these construction materials. Based on the questionnaire survey is defined the use potential of traditional building materials for the realization of the construction by methods of modern constructions and then are determined the drivers and barriers of traditional materials through using modern methods of construction. Considering the analysis of the achieved results, we can identify the gaps in the construction market in Slovakia and also to assess the perception of potential investors in the field of traditional building materials use, which is the purpose of submitted paper.

  16. Building a Roll-Off Roof Observatory A Complete Guide for Design and Construction

    CERN Document Server

    Hicks, John

    2009-01-01

    Almost every practical astronomer who takes the pursuit to its second level aspires to a fixed, permanent housing for his telescope, permitting its rapid and comfortable use and avoiding hours of setting-up time for each observing session. A roll-off roof observatory is the simplest and by far the most popular observatory design for today’s practical astronomers. Building a Roll-off Roof Observatory will help you decide whether to embark on the venture and will certainly provoke your enthusiasm for the project. The author, both an amateur astronomer and professional landscape architect, answers many of the common questions asked around observatory construction covering the following topics: Site planning, zoning, and by-law requirements common to most states, towns and municipalities Opportunities for locating the observatory Tailoring the observatory for your particular use Tools and structural components required to build it Variations in footing design to suit your soil conditions Variations possible in ...

  17. Expanding uses of building information modeling in life-cycle construction projects.

    Science.gov (United States)

    Hannele, Kerosuo; Reijo, Miettinen; Tarja, Mäki; Sami, Paavola; Jenni, Korpela; Teija, Rantala

    2012-01-01

    BIM is targeted at providing information about the entire building and a complete set of design documents and data stored in an integrated database. In this paper, we study the use of BIM in two life-cycle construction projects in Kuopio, Finland during 2011. The analysis of uses of BIM and their main problems will constitute a foundation for an intervention. We will focus on the following questions: (1) How different partners use the composite BIM model? (2) What are the major contradictions or problems in the BIM use? The preliminary findings reported in this study show that BIM has been adopted quite generally to design use but the old ways of collaboration seem to prevail, especially between designers and between designers and building sites. BIM has provided new means and demands for collaboration but expansive uses of BIM for providing new interactive processes across professional fields have not much come true.

  18. Use of Personal Protective Equipment among Building Construction Workers in Kampala, Uganda

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    Jonathan Izudi

    2017-01-01

    Full Text Available Background. 270 million workplace accidents occur annually. In Uganda, Kampala district has the highest workplace injury and fatality rates. However, information on personal protective equipment (PPE—hand gloves, hardhats, overalls, safety boots, earplugs, safety harness with lanyard, and face shields—utilization among building construction workers remains scarce. We assessed PPE utilization and determinants among building construction workers in Kampala, Uganda. Methods. This cross-sectional study involved 385 respondents. Data collected by structured questionnaire was double-entered in EpiData and analyzed in STATA at 5% significance level. Independent determinants of PPE use were established by a stepwise backward logistic regression analysis. Results. 305 (79.2% respondents were males, 290 (75.3% were 18–30 years, 285 (74.0% completed secondary education, and 197 (51.2% were temporary employees. 60 (15.6% respondents used PPE. Female sex (adjusted odds ratio (AOR = 6.64; 95% CI: 1.55–28.46; P=0.011, temporary (AOR = 0.05; 95% CI: 0.01–0.27; P<0.001 and casual (AOR = 0.01; 95% CI: 0.001–0.071; P<0.001 employment, and previous knowledge of safety measures (AOR = 100.72; 95% CI: 26.00–390.16; P<0.001 were associated with PPE use. Conclusion. PPE use was low in Kampala, Uganda. Building construction companies should implement measures of the Uganda Occupational Health and Safety Act.

  19. Impact of climate and weather on the activities of the building and construction industry in South Africa

    CSIR Research Space (South Africa)

    De Villiers, GDT

    1986-01-01

    Full Text Available This study represents a quantitative survey of the impact of the climate and weather on the activities of the building and construction industry in South Africa. Seasonal productivity problems, the seasonal provision of special facilities...

  20. THE EVOLUTION OF THE DESIGN AND CONSTRUCTION OF MASONRY BUILDINGS IN BRAZIL

    Directory of Open Access Journals (Sweden)

    Márcio R. S. Corrêa

    2012-12-01

    Full Text Available This paper presents an overview of the use of masonry in Brazil. Some historical remarks are presented showing how masonry was introduced and has been developed in the country. A brief on the Brazilian Universities is also reviewed, showing the extensive efforts made to improve the educational system and to insert Brazil into the international masonry research environment. Current materials are shown, focusing on the use of structural and non-structural masonry. The paper points out the development of Codes, considering the most important regulated characteristics of masonry in order to be used in Brazilian constructions. The building situation is addressed, stressing the large housing demands and how the masonry industry can help to partly solve the problem. Finally, present and future challenges are discussed, showing Brazil’s constructions needs, as an emerging country.

  1. Canister storage building (CSB) safety analysis report phase 3: Safety analysis documentation supporting CSB construction

    Energy Technology Data Exchange (ETDEWEB)

    Garvin, L.J.

    1997-04-28

    The Canister Storage Building (CSB) will be constructed in the 200 East Area of the U.S. Department of Energy (DOE) Hanford Site. The CSB will be used to stage and store spent nuclear fuel (SNF) removed from the Hanford Site K Basins. The objective of this chapter is to describe the characteristics of the site on which the CSB will be located. This description will support the hazard analysis and accident analyses in Chapter 3.0. The purpose of this report is to provide an evaluation of the CSB design criteria, the design's compliance with the applicable criteria, and the basis for authorization to proceed with construction of the CSB.

  2. Identifying critical success factors (CSFs) of implementing building information modeling (BIM) in Malaysian construction industry

    Science.gov (United States)

    Yaakob, Mazri; Ali, Wan Nur Athirah Wan; Radzuan, Kamaruddin

    2016-08-01

    Building Information Modeling (BIM) is defined as existing from the earliest concept to demolition and it involves creating and using an intelligent 3D model to inform and communicate project decisions. This research aims to identify the critical success factors (CSFs) of BIM implementation in Malaysian construction industry. A literature review was done to explore previous BIM studies on definitions and history of BIM, construction issues, application of BIM in construction projects as well as benefits of BIM. A series of interviews with multidisciplinary Malaysian construction experts will be conducted purposely for data collection process guided by the research design and methodology approach of this study. The analysis of qualitative data from the process will be combined with criteria identified in the literature review in order to identify the CSFs. Finally, the CSFs of BIM implementation will be validated by further Malaysian industrialists during a workshop. The validated CSFs can be used as a term of reference for both Malaysian practitioners and academics towards measuring BIM effectiveness level in their organizations.

  3. Science supporting the economic and environmental benefits of using wood and wood products in green building construction

    Science.gov (United States)

    Michael A. Ritter; Kenneth Skog; Richard Bergman

    2011-01-01

    The objective of this report is to summarize the scientific findings that support the environmental and economic benefits of using wood and wood products in green building construction. Despite documented advantages in many peer-reviewed scientific articles, most building professionals and members of the public do not recognize wood as a renewable resource or the role...

  4. Construction of a Model Solar Building. A Learning Experience for Coastal and Oceanic Awareness Studies, No. 318. [Project COAST].

    Science.gov (United States)

    Delaware Univ., Newark. Coll. of Education.

    This activity is designed for secondary school students. The process of constructing a model solar building includes consideration of many fundamental scientific principles, such as the nature of heat, light, electricity, and energy conversion technology. When the model solar building is completed, there are numerous possibilities for the use of…

  5. Thinking Like a Whole Building: A Whole Foods Market New Construction Case Study

    Energy Technology Data Exchange (ETDEWEB)

    Deru, M.; Bonnema, E.; Doebber, I.; Hirsch, A.; McIntyre, M.; Scheib, J.

    2011-04-01

    Whole Foods Market participates in the U.S. Department of Energy's Commercial Building Partnerships (CBP) to identify and develop cost-effective, readily deployed, replicable energy efficiency measures (EEMs) for commercial buildings. Whole Foods Market is working with the National Renewable Energy Laboratory (NREL) on a retrofit and a new construction CBP project. Whole Foods Market's CBP new construction project is a standalone store in Raleigh, North Carolina. Whole Foods Market examined the energy systems and the interactions between those systems in the design for the new Raleigh store. Based on this collaboration and preliminary energy modeling, Whole Foods Market and NREL identified a number of cost-effective EEMs that can be readily deployed in other Whole Foods Market stores and in other U.S. supermarkets. If the actual savings in the Raleigh store - which NREL will monitor and verify - match the modeling results, each year this store will save nearly $100,000 in operating costs (Raleigh's rates are about $0.06/kWh for electricity and $0.83/therm for natural gas). The store will also use 41% less energy than a Standard 90.1-compliant store and avoid about 3.7 million pounds of carbon dioxide emissions.

  6. The effect of diffuse ceiling panel on the energy performance of thermally activated building construction

    DEFF Research Database (Denmark)

    Zhang, Chen; Heiselberg, Per Kvols; Pomianowski, Michal Zbigniew

    2016-01-01

    An integrated system combining diffuse ceiling ventilation with thermally activated building construction (TABS) was proposed recently. In this system, TABS is encapsulated by diffuse ceiling panel and cannot have directly heat exchange with the room. The aim of this study is to investigate the e...... an opposite effect on the heating and cooling capacity of TABS. In addition, a numerical model is built and validated by the measured data. The validated model is further applied to conduct a paramedical study on the materials of the diffuse ceiling panel.......An integrated system combining diffuse ceiling ventilation with thermally activated building construction (TABS) was proposed recently. In this system, TABS is encapsulated by diffuse ceiling panel and cannot have directly heat exchange with the room. The aim of this study is to investigate...... the effect of diffuse ceiling panel on the energy performance of TABS in both heat and cooling mode. Experiments are carried out in a full-scale test facility with the integrated system, and the cases without diffuse ceiling are also measured as references. The results indicate that the diffuse ceiling has...

  7. Management of metrology in measuring of the displacement of building construction

    Directory of Open Access Journals (Sweden)

    Jiří Kratochvíl

    2007-06-01

    Full Text Available The metrology management of the measurement of the displacement of building construction is not regulated in the standard ČSN ISO 73 0405 - Measurement of the displacement of building construction. But the metrology management has to be included in the project of measurement of the displacement (Stage of project. Then we have to pay an attention to the metrological management during this measurement (Stage of realization and during the evaluation of this measurement (Stage of evaluation. We have to insist on the subsequent improving of metrology management within the frame of the next project (so-called feedback. The metrology management in the measurement of the displacement during the stages should be based on an application of statutory instruments and technical standards. We should insist especially on the system of standards for the quality control ISO 9000. Considering specialities of geodetic measurements it is necessary to adapt the metrology management. That is why it will differ from the metrology management in other fields of knowledge. This paper includes some steps of metrological provision which must not be ignored.

  8. Nearly Zero Energy Buildings: An Overview of the Main Construction Features across Europe

    Directory of Open Access Journals (Sweden)

    Giulia Paoletti

    2017-05-01

    Full Text Available Nearly Zero Energy Buildings (nZEBs represent the backbone to achieve ambitious European goals in terms of energy efficiency and CO2 emissions reduction. As defined in the EPBD, by 31 December 2020, all of the new buildings will have to reach a target of nearly zero energy. This target encourages the adoption of innovative business models as well as the technology development in the building sector, aimed at reducing energy demand and exploiting local renewable energy sources (RES. Assessing the share of implementation and the performance of technologies in new or renovated nZEBs is strategic to identify the market trends and to define design guidelines with the most effective solutions according to the context. In this regard, this paper analyses the construction features of a set of nZEBs, collected in 17 European countries within the EU IEE ZEBRA2020 project, with a special focus on the influence of the boundary conditions on the technologies adopted. The results show a general high insulation level of the envelope and recurrent specific technologies in the Heating Ventilation Air Conditioning (HVAC system (i.e., heat pumps and mechanical ventilation, while the climatic conditions do not drive significantly the design approach and the nZEB features.

  9. Estimation of building-related construction and demolition waste in Shanghai.

    Science.gov (United States)

    Ding, Tao; Xiao, Jianzhuang

    2014-11-01

    One methodology is proposed to estimate the quantification and composition of building-related construction and demolition (C&D) waste in a fast developing region like Shanghai, PR China. The varieties of structure types and building waste intensities due to the requirement of progressive building design and structure codes in different decades are considered in this regional C&D waste estimation study. It is concluded that approximately 13.71 million tons of C&D waste was generated in 2012 in Shanghai, of which more than 80% of this C&D waste was concrete, bricks and blocks. Analysis from this study can be applied to facilitate C&D waste governors and researchers the duty of formulating precise policies and specifications. As a matter of fact, at least a half of the enormous amount of C&D waste could be recycled if implementing proper recycling technologies and measures. The appropriate managements would be economically and environmentally beneficial to Shanghai where the per capita per year output of C&D waste has been as high as 842 kg in 2010. Copyright © 2014 Elsevier Ltd. All rights reserved.

  10. Culture’s building blocks: investigating cultural evolution in a LEGO construction task

    Directory of Open Access Journals (Sweden)

    John Joseph Mcgraw

    2014-09-01

    Full Text Available One of the most essential but theoretically vexing issues regarding the notion of culture is that of cultural evolution and transmission: how a group’s accumulated solutions to invariant challenges develop and persevere over time. But at the moment, the notion of applying evolutionary theory to culture remains little more than a suggestive trope. Whereas the modern synthesis of evolutionary theory has provided an encompassing scientific framework for the selection and transmission of biological adaptations, a convincing theory of cultural evolution has yet to emerge. One of the greatest challenges for theorists is identifying the appropriate time scales and units of analysis in order to reduce the intractably large and complex phenomenon of culture into its component building blocks. In this paper, we present a model for scientifically investigating cultural processes by analyzing the ways people develop conventions in a series of LEGO construction tasks. The data revealed a surprising pattern in the selection of building bricks as well as features of car design across consecutive building sessions. Our findings support a novel methodology for studying the development and transmission of culture through the microcosm of interactive LEGO design and assembly.

  11. Construction and design defects in the residential buildings and observed earthquake damage types in Turkey

    Science.gov (United States)

    Cogurcu, M. T.

    2015-04-01

    Turkey is situated in a very active earthquake region. In the last century, several earthquakes resulted in thousands of deaths and enormous economic losses. In 1999, the Kocaeli earthquake had an approximate death toll of more than 20 000, and in 2011 the Van earthquake killed 604 people. In general, Turkish residential buildings have reinforced concrete structural systems. These reinforced concrete structures have several deficiencies, such as low concrete quality, non-seismic steel detailing and inappropriate structural systems including several architectural irregularities. In this study, the general characteristics of Turkish building stock and the deficiencies observed in structural systems are explained, and illustrative figures are given with reference to the Turkish Earthquake Code 2007. The poor concrete quality, lack of lateral or transverse reinforcement in beam-column joints and column confinement zones, high stirrup spacings, under-reinforced columns and over-reinforced beams are the primary causes of failures. Other deficiencies include weak-column-stronger-beam formations, insufficient seismic joint separations, soft-story or weak-story irregularities and short columns. Similar construction and design mistakes are also observed in other countries situated on active earthquake belts. Existing buildings still have these undesirable characteristics, and so to prepare for future earthquakes they must be rehabilitated.

  12. Material and Social Construction: A Framework for the Adaptation of Buildings

    Directory of Open Access Journals (Sweden)

    Jesse M. Keenan

    2014-12-01

    Full Text Available This article is a formulation of a framework for understanding the nature of change, particularly climate change, as it applies to the scale of a building. Through an exploration of various scientific and social scientific literutre, the article positions the concept of adaptation as the appropriate mode for understanding and managing change. Through the classification of a duality of material and social construction in the ontological composition of a building, various lines of thought relating to adaptive capacity and adaptive cycling within systems theory are appropriated within an integrated framework for adaptation. Specifically, it is theorized that as buildings as objects are developing greater capacities for intergrated operations and management through artificial intelligence, they will possess an ex ante capacity to autonomously adapt in dynamic relation to and with the ex post adaptation of owners and operators. It is argued that this top-down and bottom-up confluence of multi-scalar dynamic change is consistent with the prevailing theory of Panarchy applied in social-ecological systems theory. The article concludes with normative perspectives on the limitations of systems theory in architecture, future directions for research and an alternative positioning of professional practices.

  13. Performance of Higher National Diploma of Building Technology Graduates in the Construction Industry: A Tracer Study in Kumasi Metropolis, Ghana

    Science.gov (United States)

    Awere, E.; Edu-Buandoh, K. B. M.; Dadzie, D. K.; Aboagye, J. A.

    2016-01-01

    Building Technology graduates from Ghanaian Polytechnics seek employment in the construction industry, yet little information is known as to whether their tertiary education is really related to and meeting the actual needs of their prospective employers in the construction industry. The tracer study was conducted to ascertain the performance of…

  14. Wood construction in the future. Sub-project 03. Development of fundamental strategies for optimizing energy and indoor climate of wood constructions for office buildings and administration buildings; Holzbau der Zukunft. Teilprojekt 03. Entwicklung von grundsaetzlichen Strategien zur Energie- und Raumklimaoptimierung von Holzbauten fuer Buero- und Verwaltungsbau

    Energy Technology Data Exchange (ETDEWEB)

    Kaufmann, Hermann; Mayerhofer, Stefan; Hausladen, G.; Froehler, Robert

    2008-07-01

    The contribution under consideration reports on the development of fundamental strategies for the energy optimization and indoor climate optimization of office buildings and administration buildings in wood construction. As the most important result, the authors manifest that an optimization of energy and indoor climate is possible with buildings in wood construction. The potential of the wood construction can be increased by means of optimization measures in construction, building cover, enlargement and the intelligent integration of building services.

  15. Construction patterns of birds’ nests provide insight into nest-building behaviours

    Directory of Open Access Journals (Sweden)

    Lucia Biddle

    2017-02-01

    Full Text Available Previous studies have suggested that birds and mammals select materials needed for nest building based on their thermal or structural properties, although the amounts or properties of the materials used have been recorded for only a very small number of species. Some of the behaviours underlying the construction of nests can be indirectly determined by careful deconstruction of the structure and measurement of the biomechanical properties of the materials used. Here we examined this idea in an investigation of Bullfinch (Pyrrhula pyrrhula nests as a model for open-nesting songbird species that construct a “twig” nest, and tested the hypothesis that materials in different parts of nests serve different functions. The quantities of materials present in the nest base, sides and cup were recorded before structural analysis. Structural analysis showed that the base of the outer nests were composed of significantly thicker, stronger and more rigid materials compared to the side walls, which in turn were significantly thicker, stronger and more rigid than materials used in the cup. These results suggest that the placement of particular materials in nests may not be random, but further work is required to determine if the final structure of a nest accurately reflects the construction process.

  16. Risk factors for cardiovascular diseases among male workers of building construction site in Delhi

    Directory of Open Access Journals (Sweden)

    Mamta Parashar

    2017-01-01

    Full Text Available Background: Cardiovascular disease (CVD is mainly attributable to a combination of risk factors (RFs: tobacco use, alcohol use, high blood pressure, diabetes, unhealthy diet, and obesity which are amenable to interventions. Building construction workers are poor and vulnerable. They are also the victims of adverse working environmental conditions and subjected to health hazards of occupational origin. Objective: The aim was to study the RFs and associated sociodemographics for CVD among construction site workers. Materials and Methods: This cross-sectional study was conducted among construction site workers. A total of 172 male workers over the age of 18 years were included in the study. Modified World Health Organization Step-wise approach to chronic disease RF surveillance was used to collect data. The data were analyzed in SPSS version 17 and the Chi-square test was applied to analyze the qualitative data. Results: At least one RF for CVD was present in all the subjects, with majority (93.6% of them having at least two RFs. The presence of the RFs (moderate to high, 3–11 was found to be significantly associated with lower income group, unskilled workers, migration year <1, alcoholics, personal tobacco use, family history of tobacco use, and the low knowledge score regarding tobacco use (0–2. Conclusions: Community-based comprehensive behavioral and life style communication package should be established for workers to reduce the modifiable RFs of CVD.

  17. Best practices of Building Information Modelling (BIM) implementation in design phase for construction project

    Science.gov (United States)

    Kasim, N.; Zainal Abidin, N. A.; Zainal, R.; Sarpin, N.; Rahim, M. H. I. Abd; Saikah, M.

    2017-11-01

    Implementation of Building Information Modelling (BIM) was expected to bring improvement in current practices of Malaysian construction industry. In the design phase, there is a lack of a ready pool of skilled workers who are able to develop BIM strategic plan and effectively utilise it. These create boundaries for BIM nature in Malaysian construction industry specifically in the design phase to achieve its best practices. Therefore, the objectives of this research are to investigate the current practices of BIM implementation in the design phase as well as the best practices factors of BIM implementation in the design phase. The qualitative research approach is carried out through semi-structured interviews with the designers of different organisations which adopt BIM in the design phase. Data collection is analysed by executing content analysis method. From the findings, the best practices factors of BIM implementation in design phase such as the incentive for BIM training, formal approach to monitoring automated Level of Detailing (LOD), run a virtual meeting and improve Industry Foundation Class (IFC). Thus, best practices factors which lead to practices improvements in the design phase of project development which subsequently improves the implementation of BIM in the design phase of Malaysian construction industry.

  18. Energy and environmental aspects in building construction. Joint seminar of the LVIS-2000 and ETRR research programmes; Energia- ja ympaeristoetietoinen rakentaminen; LVIS-2000 ja ETRR -tutkimusohjelmien yhteisseminaari

    Energy Technology Data Exchange (ETDEWEB)

    Kohonen, R.; Naeraekkae, S. [eds.

    1992-12-31

    A joint seminar was arranged by ETRR or `Energy-efficient buildings and building components` and LVIS or `Future building services`. The main topics of the seminar included environmental and energy conservation aspects in building construction; Concepts of industrial house building; Energy conservation and ventilation solutions in residential buildings; The prototype METOP for low energy office buildings and development of other model solutions and programs

  19. CNAAA spent fuel complementary storage building (UFC) construction and licensing: an overview of current status

    Energy Technology Data Exchange (ETDEWEB)

    Lima Neto, Bertino do Carmo; Pacifi, Cicero Durval, E-mail: bertino@eletronuclear.gov.br, E-mail: cicero@eletronuclear.gov.br [Eletrobras Eletronuclear S.A. (ELETRONUCLEAR), Rio de Janeiro, RJ (Brazil)

    2013-07-01

    The reprocessing of nuclear fuel assemblies could be a valuable solution in order to make available additional energy resources and also to decrease the volume of discarded materials. After the burning of nuclear fuel assemblies to produce electrical energy, these components have to be stored in the spent fuel pools of each unit, for at least 10 years, in order to decrease their residual heat. Even after this initial 10 year-period, these spent fuel assemblies still have a great amount of energy, which can be reused. Nowadays, the spent fuel materials can be reprocessed in order to produce electrical energy, or be stored to provide, in the future, an opportunity to decide how these materials will be treated. At the present moment, Brazil does not plan to reprocess these spent fuels assemblies, as performed by some other countries. Thus, Brazil intends to build a spent fuel long term intermediate storage facility to allow the chance to make a decision in the future, taking into account the available technology at that time. Considering the three CNAAA units (Angra 1, 2 and 3 of Central Nuclear Almirante Alvaro Alberto, the Brazilian nuclear power plant, located at Angra dos Reis county, Rio de Janeiro state) have a life time estimated in 60 years, and the intrinsical spent fuel pools storage capacity of these units, a Spent Fuel Complementary Storage Building - UFC has to be foreseen in order to increase the storage capacity of CNAAA. Therefore, the Spent Fuel Complementary Storage Building shall be in operation in 2018, capable to receive the first spent fuel assemblies from Angra 2 and, in the next year, from Angra 1. The same procedure will be applied for the spent fuel assemblies of Angra 3, currently in construction. The Spent Fuel Complementary Storage Building will be constructed and operated by Eletrobras Eletronuclear - the CNAAA owner - and will be located at the same site of the plant. Conceptually, the UFC will be built as a wet storage modality

  20. Hydraulics in construction of high-rise buildings; Koso biru kensetsu to yuatsu (T-UP koho)

    Energy Technology Data Exchange (ETDEWEB)

    Takeno, M. [Taisei Corp., Tokyo (Japan)

    1994-07-15

    This paper reports construction of the multistory building with 33 stories and subbasement by T-UP method. The automatic building construction method named T-UP is described as below: the central part (core part) composing the chief structure of the building is constructed prior to the outer part (wing part); the production platform (hat beam that corresponds to the top structure of the building), is constructed on the ground, and then lifted up by the hydraulic jacks, utilizing the core part as supporting structures and one story by one story; and then the cranes located on and under the hat beam construct the whole building. The jacking-up unit of the hat beam is composed of eight guide pillars, eight hydraulic pressure units, eight individual console panels, and one central operating panel. The guide pillars and the hat beam are lifted up by automatic remote operation through the central panel installed in the central operating room, synchronizing each jack stroke of the eight guide pillars. The lifting-up speed is 90 min per 4 m, the height difference of each story. 8 figs., 4 tabs.

  1. Effect of energy-efficient measures in building construction on indoor radon in Russia.

    Science.gov (United States)

    Vasilyev, A; Yarmoshenko, I

    2017-04-28

    The effect of implementation of energy-efficient measures in building construction was studied. Analysis includes study of indoor radon in energy-efficient buildings in Ekaterinburg, Russia, and results of radiation measurements in 83 regions of Russia conducted within the regional programmes. The forecast distribution of radon concentration in Ekaterinburg was built with regard to the city development programme. With Ekaterinburg taken as representative case, forecast distribution of radon concentration in Russia in 2030 was built. In comparison with 2000, average radon concentration increases by a factor of 1.42 in 2030 year; percentage above the reference level 300 Bq/m3 increases by a factor of 4 in 2030 year. It is necessary to perceive such an increase with all seriousness and to prepare appropriate measures for optimization of protection against indoor radon. Despite the high uncertainty, reconstructed distribution of radon concentration can be applied for justification of measures to be incorporated in the radon mitigation strategy. © The Author 2016. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  2. Virtual Construction of Space Habitats: Connecting Building Information Models (BIM) and SysML

    Science.gov (United States)

    Polit-Casillas, Raul; Howe, A. Scott

    2013-01-01

    Current trends in design, construction and management of complex projects make use of Building Information Models (BIM) connecting different types of data to geometrical models. This information model allow different types of analysis beyond pure graphical representations. Space habitats, regardless their size, are also complex systems that require the synchronization of many types of information and disciplines beyond mass, volume, power or other basic volumetric parameters. For this, the state-of-the-art model based systems engineering languages and processes - for instance SysML - represent a solid way to tackle this problem from a programmatic point of view. Nevertheless integrating this with a powerful geometrical architectural design tool with BIM capabilities could represent a change in the workflow and paradigm of space habitats design applicable to other aerospace complex systems. This paper shows some general findings and overall conclusions based on the ongoing research to create a design protocol and method that practically connects a systems engineering approach with a BIM architectural and engineering design as a complete Model Based Engineering approach. Therefore, one hypothetical example is created and followed during the design process. In order to make it possible this research also tackles the application of IFC categories and parameters in the aerospace field starting with the application upon the space habitats design as way to understand the information flow between disciplines and tools. By building virtual space habitats we can potentially improve in the near future the way more complex designs are developed from very little detail from concept to manufacturing.

  3. Energy use for building construction. Progress report, March 1, 1976--August 1, 1976. [Energy demand in US building industry in 1967

    Energy Technology Data Exchange (ETDEWEB)

    Hannon, B M; Stein, R G; Segal, B; Serber, D; Stein, C

    1976-08-01

    Total (direct and indirect) energy requirements of the construction industry for 1967 were determined in order to examine the potential for energy savings. The Energy Input/Output Model developed at the Center for Advanced Computation, University of Illinois, was expanded to include a detailed breakdown of the industry and energy intensities of 49 building construction (new and maintenance) sectors and of the overall building construction industry were determined for 1967. The latter figure was computed at about 70,000 Btu/$, i.e., the construction industry on the average required about 70,000 Btu of direct and indirect energy per dollar of output produced. In addition, total energy requirements to final demand were developed for the construction industry for 1967. The overall industry required about 6000 trillion Btu, or about nine percent of the total U.S. energy requirement. Energy requirements were further broken down according to goods and services purchased by individual construction sectors, and energy distribution patterns were determined. Energy cost per unit for several input materials to construction were calculated, as well as energy cost per square foot for various building sectors in 1967. Laboratories and hospitals required the most energy per square foot (2,073,755 Btu/ft/sup 2/ and 1,722,172 Btu/ft/sup 2/, respectively), while warehouses required the least (558,403 Btu/ft/sup 2/). Finally, a prototypical study was conducted to determine industries in which direct energy use led to a significant amount of energy embodied in new construction for 1967. The resulting energy flow chart is included.

  4. Building

    OpenAIRE

    Seavy, Ryan

    2014-01-01

    Building for concrete is temporary. The building of wood and steel stands against the concrete to give form and then gives way, leaving a trace of its existence behind. Concrete is not a building material. One does not build with concrete. One builds for concrete. MARCH

  5. Mathematical logic as a mean of solving the problems of power supply for buildings and constructions

    Science.gov (United States)

    Pryadko, Igor; Nozdrina, Ekaterina; Boltaevsky, Andrey

    2017-10-01

    The article analyzes the questions of application of mathematical logic in engineering design associated with machinery and construction. The aim of the work is to study the logical working-out of Russian electrical engineer V.I. Shestakov. These elaborations are considered in connection with the problem of analysis and synthesis of relay contact circuits of the degenerate (A) class which the scientist solved. The article proposes to use Shestakov’s elaborations for optimization of buildings and constructions of modern high-tech. In the second part of the article the events are actualized in association with the development of problems of application of mathematical logic in the analysis and synthesis of electric circuits, relay and bridging. The arguments in favor of the priority of the authorship of the elaborations of Russian electrical engineer V. I. Shestakov, K. Shannon – one of the founders of computer science, and Japanese engineer A. Nakashima are discussed. The issue of contradiction between V. I. Shestakov and representatives of the school of M. A. Gavrilov is touched on.

  6. Building Information Modelling and Standardised Construction Contracts: a Content Analysis of the GC21 Contract

    Directory of Open Access Journals (Sweden)

    Aaron Manderson

    2015-08-01

    Full Text Available Building Information Modelling (BIM is seen as a panacea to many of the ills confronting the Architectural, Engineering and Construction (AEC sector. In spite of its well documented benefits the widespread integration of BIM into the project lifecycle is yet to occur. One commonly identified barrier to BIM adoption is the perceived legal risks associated with its integration, coupled with the need for implementation in a collaborative environment. Many existing standardised contracts used in the Australian AEC industry were drafted before the emergence of BIM. As BIM continues to become ingrained in the delivery process the shortcomings of these existing contracts have become apparent. This paper reports on a study that reviewed and consolidated the contractual and legal concerns associated with BIM implementation. The findings of the review were used to conduct a qualitative content analysis of the GC21 2nd edition, an Australian standardised construction contract, to identify possible changes to facilitate the implementation of BIM in a collaborative environment. The findings identified a number of changes including the need to adopt a collaborative contract structure with equitable risk and reward mechanisms, recognition of the model as a contract document and the need for standardisation of communication/information exchange.

  7. Development of Hybrid Model for Estimating Construction Waste for Multifamily Residential Buildings Using Artificial Neural Networks and Ant Colony Optimization

    Directory of Open Access Journals (Sweden)

    Dongoun Lee

    2016-09-01

    Full Text Available Due to the increasing costs of construction waste disposal, an accurate estimation of the amount of construction waste is a key factor in a project’s success. Korea has been burdened by increasing construction waste as a consequence of the growing number of construction projects and a lack of construction waste management (CWM strategies. One of the problems associated with predicting the amount of waste is that there are no suitable estimation strategies currently available. Therefore, we developed a hybrid estimation model to predict the quantity and cost of waste in the early stage of construction. The proposed approach can be used to address cost overruns and improve CWM in the subsequent stages of construction. The proposed hybrid model uses artificial neural networks (ANNs and ant colony optimization (ACO. It is expected to provide an accurate waste estimate by applying historical data from multifamily residential buildings.

  8. Measurement of color in different construction materials. The restoration in sandstone buildings

    Directory of Open Access Journals (Sweden)

    García Pascua, N.

    1999-03-01

    Full Text Available The use of construction materials and their subsequent repair purposes include a search of knowledge and preservation of their original appearance. For this reason, the main aim of this study is to determine a color range which does not change with the possible actions on a building, both when restoration works which imply the use and repair of "ancient" materials are carried out, and when construction is carried out with new materials. It is necessary to obtain the quantification of this property in order to check its variation over the passage of time. Each construction material must be taken into account as an isolated problem, since the color is different in each case.

    El empleo de materiales de construcción y la aplicación sobre ellos de productos de reparación requiere un detallado estudio sobre su forma de actuación y la importancia de la conservación del aspecto original de los mismos. Por este motivo, el objetivo principal de este estudio es el determinar un intervalo de color que se conserve a pesar de todas las posibles intervenciones que se acometan en el edificio, tanto cuando se realizan trabajos de restauración, que implican el uso y reparación de materiales "viejos", o bien cuando se llevan a cabo trabajos de construcción con materiales nuevos. Es necesario cuantificar dicha propiedad para poder controlar el paso del tiempo. Cada material de construcción debe ser considerado como un problema aislado, ya que el color es distinto en cada caso.

  9. The Linkage between China’s Foreign Direct Investment and Ghana’s Building and Construction Sector Performance

    Directory of Open Access Journals (Sweden)

    Kwasi BOAKYE-GYASI

    2016-11-01

    Full Text Available Over the years, China has contributed immensely to the development process of Ghana through foreign direct investments; providing financial aids’ improved management training skills, and the transfer of innovation and technological techniques. This research examines the relationship between China’s foreign direct investment and Ghana’s building and construction sector performance. By using a robust regression model, the results show that China’s FDI in Ghana’s building and construction sector has significant positive effect on the economic growth of Ghana due to strong increase in investors’ confidence in the Ghanaian economy. Thus, FDI contributes to economic growth when there is an improvement of the infrastructure and operational skills of the local building and construction companies. This will lead to the increase of revenue for citizens who are employed in this sector and thus leading to the overall economic development of the country.

  10. The Building sector commitment to promote the sustainability of construction products: a common European approach for the Environmental Product Performances

    Directory of Open Access Journals (Sweden)

    Caterina Gargari

    2013-05-01

    Full Text Available The industry of construction products plays an important role in Europe in promoting the sustainability of the built environment in a life cycle perspective. Within the framework of the European initiatives for a sustainable competitiveness, manufacturers are interested in promoting a life cycle approach along the building chain. However both, institutions and building operators, in general still have to go a long way on designing and applying a sustainable and competitive industrial policy. This paper aims to describe the European background, the regulatory framework, identifying gaps and the actions to be undertaken to promote a market for sustainable products and sustainable buildings. In particular this paper deals with the assessment and communication of the environmental performance of construction products between the operators in the building chain, as a prerequisite for the sustainability of the built environment, and outlines the strategies to implement a proper evaluation and communication process.

  11. NUMERICAL SUBSTANTIATION OF THE PROJECT EXECUTION PLAN FOR THE CONSTRUCTION OF A MULTI-STOREY BUILDING ON THE SLOPE

    Directory of Open Access Journals (Sweden)

    Mangushev Rashid Aleksandrovich

    2012-10-01

    Full Text Available The issues of preparation of a construction site designated for the accommodation of a monolithic multi-storey building of a business centre with four underground levels are considered in the proposed article. The building is to be built on the slope of the Don River bank in Rostov-Don. The slope length is thirty meters. The structural design of the building in question, as well as the structural analysis performed in the course of the project substantiation procedures, have made it possible to substantiate the application of retaining walls required to prevent the slope failure in the course of the preparation of the construction site designated for the accommodation of a multi-storey building in the complex geotechnical environment of Rostov-Don.

  12. Training program for energy conservation in new-building construction. Volume I. Energy conservation technology: management and energy conservation

    Energy Technology Data Exchange (ETDEWEB)

    None

    1977-12-01

    A Model Code for Energy Conservation in New Building Construction was developed by those national organizations primarily concerned with the development and promulgation of model codes. The technical provisions are based on ASHRAE Standard 90-75 and are intended for use by state and local officials. This training manual is both an introduction to the need for energy conservation in buildings and a definition of the need for and the role of the enforcement official for energy conservation.

  13. Parametric Modelling (bim) for the Documentation of Vernacular Construction Methods: a Bim Model for the Commissariat Building, Ottawa, Canada

    Science.gov (United States)

    Fai, S.; Filippi, M.; Paliaga, S.

    2013-07-01

    Whether a house of worship or a simple farmhouse, the fabrication of a building reveals both the unspoken cultural aspirations of the builder and the inevitable exigencies of the construction process. In other-words, why buildings are made is intimately and inevitably associated with how buildings are made. Nowhere is this more evident than in vernacular architecture. At the Carleton Immersive Media Studio (CIMS) we are concerned that the de-population of Canada's rural areas, paucity of specialized tradespersons, and increasing complexity of building codes threaten the sustainability of this invaluable cultural resource. For current and future generations, the quantitative and qualitative values of traditional methods of construction are essential for an inclusive cultural memory. More practically, and equally pressing, an operational knowledge of these technologies is essential for the conservation of our built heritage. To address these concerns, CIMS has launched a number of research initiatives over the past five years that explore novel protocols for the documentation and dissemination of knowledge related to traditional methods of construction. Our current project, Cultural Diversity and Material Imagination in Canadian Architecture (CDMICA), made possible through funding from Canada's Social Sciences and Humanities Research Council (SSHRC), explores the potential of building information modelling (BIM) within the context of a web-based environment. In this paper, we discuss our work-to-date on the development of a web-based library of BIM details that is referenced to ''typical'' assemblies culled from 19C and early 20C construction manuals. The parametric potential of these ''typical'' details is further refined by evidence from the documentation of ''specific'' details studied during comprehensive surveys of extant heritage buildings. Here, we consider a BIM of the roof truss assembly of one of the oldest buildings in Canada's national capital - the

  14. Treatment of District Energy CHP Outputs in LEED® for Building Design and Construction: New Construction and Major Renovations

    Science.gov (United States)

    This fact sheet summarizes how buildings connected to a CHP- equipped district energy system can earn more LEED® points than they could otherwise earn. It presents guidance for meeting the LEED® Minimum Energy Performance prerequisite and calculating point

  15. Training program for energy conservation in new-building construction. Volume IV. Energy conservation technology: advanced course for plan examiners

    Energy Technology Data Exchange (ETDEWEB)

    None

    1977-12-01

    A Model Code for Energy Conservation in New Building Construction has been developed by those national organizations primarily concerned with the development and promulgation of model codes. The technical provisions are based on ASHRAE Standard 90-75 and are intended for use by state and local officials. This manual contains a more in-depth training in the review techniques and concepts required by the plan examiners and code officials in administering the code for conventional (buildings of 3 stories or less) construction.

  16. Cost Control Strategies for Zero Energy Buildings: High-Performance Design and Construction on a Budget (Brochure)

    Energy Technology Data Exchange (ETDEWEB)

    2014-09-01

    There is mounting evidence that zero energy can, in many cases, be achieved within typical construction budgets. To ensure that the momentum behind zero energy buildings and other low-energy buildings will continue to grow, this guide assembles recommendations for replicating specific successes of early adopters who have met their energy goals while controlling costs. Contents include: discussion of recommended cost control strategies, which are grouped by project phase (acquisition and delivery, design, and construction) and accompanied by industry examples; recommendations for balancing key decision-making factors; and quick reference tables that can help teams apply strategies to specific projects.

  17. Versatile process for the stereodiverse construction of 1,3-polyols: iterative chain elongation with chiral building blocks.

    Science.gov (United States)

    Bredenkamp, Angela; Wegener, Michael; Hummel, Sara; Häring, Andreas P; Kirsch, Stefan F

    2016-01-31

    A versatile process for the construction of 1,3-polyols, a key structural element of polyketide-type natural products, is presented. The modular synthesis strategy involves the iterative chain elongation with novel four-carbon building blocks to access all possible stereoisomers of a growing 1,3-polyol chain. These chiral building blocks are designed to install four carbon atoms with two stereogenic centres by performing only four experimentally simple steps per elongation cycle, thus making these building blocks attractive for the realization of a universal platform from which to access a diverse range of polyketidic molecules.

  18. 78 FR 34347 - Proposed Information Collection; Comment Request; the Building Construction Technology Extension...

    Science.gov (United States)

    2013-06-07

    ...Mahon, NIST MEP, 100 Bureau Drive, Stop 4800, Gaithersburg, Maryland 20899-4800; (301-975-8328); deirdre... curricula for buildings that do and do not have building automation systems, then train trainers to deliver the curriculum to building operators, using real commercial, government and industrial buildings as...

  19. Building a semi-automatic ontology learning and construction system for geosciences

    Science.gov (United States)

    Babaie, H. A.; Sunderraman, R.; Zhu, Y.

    2013-12-01

    We are developing an ontology learning and construction framework that allows continuous, semi-automatic knowledge extraction, verification, validation, and maintenance by potentially a very large group of collaborating domain experts in any geosciences field. The system brings geoscientists from the side-lines to the center stage of ontology building, allowing them to collaboratively construct and enrich new ontologies, and merge, align, and integrate existing ontologies and tools. These constantly evolving ontologies can more effectively address community's interests, purposes, tools, and change. The goal is to minimize the cost and time of building ontologies, and maximize the quality, usability, and adoption of ontologies by the community. Our system will be a domain-independent ontology learning framework that applies natural language processing, allowing users to enter their ontology in a semi-structured form, and a combined Semantic Web and Social Web approach that lets direct participation of geoscientists who have no skill in the design and development of their domain ontologies. A controlled natural language (CNL) interface and an integrated authoring and editing tool automatically convert syntactically correct CNL text into formal OWL constructs. The WebProtege-based system will allow a potentially large group of geoscientists, from multiple domains, to crowd source and participate in the structuring of their knowledge model by sharing their knowledge through critiquing, testing, verifying, adopting, and updating of the concept models (ontologies). We will use cloud storage for all data and knowledge base components of the system, such as users, domain ontologies, discussion forums, and semantic wikis that can be accessed and queried by geoscientists in each domain. We will use NoSQL databases such as MongoDB as a service in the cloud environment. MongoDB uses the lightweight JSON format, which makes it convenient and easy to build Web applications using

  20. Heavy and light/moderate smoking among building trades construction workers.

    Science.gov (United States)

    Chin, Dal Lae; Hong, OiSaeng; Gillen, Marion; Bates, Michael N; Okechukwu, Cassandra A

    2013-03-01

    The purpose of the study was to identify the correlates of heavy smoking (defined as more than one pack of cigarettes per day) in building trades construction workers. This study used cross-sectional data from the MassBUILT smoking cessation intervention study at Massachusetts building trades unions with the sample of 763 smokers. Data collected included information about smoking behavior, individual, psychological, interpersonal, and occupational factors obtained through self-reported questionnaires. Approximately 21% of smokers were heavy smokers. Significant factors related to heavy smoking were: older age (OR = 1.10; 95% CI: 1.06-1.14), male gender (OR = 4.55; 95% CI: 1.62-12.79), smoking the first cigarette of the day within 30 min of waking (OR = 4.62; 95% CI: 2.81-7.59), smoking initiation at earlier age (OR = 0.93; 95% CI: 0.87-1.00), higher temptation to smoke (OR = 1.55; 95% CI: 1.17-2.05), household smoking (OR = 1.90; 95% CI: 1.18-3.06) or living alone (OR = 4.11; 95% CI: 1.70-9.92), and exposure to chemicals at work (OR = 1.61; 95% CI: 1.06-2.53). Addressing the influence of these factors on heavy smoking could lead to the development of targeted, multiple components in comprehensive cessation strategies for blue-collar smokers. © 2012 Wiley Periodicals, Inc.

  1. Construction components and energy efficiency in buildings; Componentes de construccion y eficiencia energetica en edificios

    Energy Technology Data Exchange (ETDEWEB)

    Bansal, N.K.; Bhandari, M.S.; Kummar, P.S. [Centro para el Estudio de Energia, Instituto Hindu de Tecnologia, Hauz Khas, Nueva Delhi (Indonesia)

    2005-01-15

    An energy efficiency analysis to a set of buildings was made in India to quantify the effects of the individual design concepts with respect to the energy system in general. The saving potential of energy of different concepts as well as the orientation, windows, air cavities, insulation, etc. was quantified for the different climatic conditions that prevail in most of the Central India regions. It is demonstrated that the specific requirement of heat energy can be reduced to 300 kWh/m{sup 2} a (U{sub edifice} = 2.13 W/m{sup 2} K) for a building of normal construction up to 143 kWh/m{sup 2} a (U{sub edifice} = 0.95 W/m{sup 2} K) when using ceiling insulation and walls and by means of the use of double glass windows. [Spanish] Se realizo el analisis de eficiencia de energia a un conjunto de edificios en la India, para cuantificar los efectos de los conceptos individuales de diseno respecto al sistema de energia en general. El potencial de ahorro de energia de distintos conceptos, como la orientacion, ventanas, cavidades de aire, aislamiento, etc. fue cuantificado para las distintas condiciones climaticas que prevalecen en la mayoria de las regiones de India central. Se demuestra que el requerimiento especifico de energia calorifica puede ser reducida de 300 kWh/m{sup 2} a (U{sub edificio} = 2.13 W/m{sup 2} K) para un edificio de construccion normal hasta 143 kWh/m{sup 2} a (U{sub edificio} = 0.95 W/m{sup 2} K) al usar un aislante en el techo, paredes y mediante el empleo de ventanas de doble vidrio.

  2. Supply chain for new construction: buy where we build; Cadena de suministro para las nuevas construcciones: Buy where we build

    Energy Technology Data Exchange (ETDEWEB)

    Cruz, J. L.; Bueno, S.

    2012-07-01

    A global supply strategy has been placed by Westinghouse in order to face the current and future constructions. And in this way, Westinghouse will be able to take advantage of benefit of Local Supply. this article shows the Westinghouse Global Supply Strategy, Local Supply considerations, the current state of supplier calcifications, and finally Memorandums of Understanding and Alliances agreed with local suppliers around the world to provide a suitable solution for the new construction needs. (Author)

  3. Building a roll-off roof or dome observatory a complete guide for design and construction

    CERN Document Server

    Hicks, John Stephen

    2016-01-01

    Almost every practical astronomer eventually aspires to have a fixed, permanent observatory for his or her telescope. A roll-off roof or dome observatory is the answer for the most popular home observatory design.  Almost every practical astronomer eventually aspires to have a fixed, permanent observatory for his or her telescope. A roll-off roof or dome observatory is the answer for the most popular home observatory design. Building a Roll-Off or Dome Observatory will help you decide whether to embark on the venture and will certainly increase your enthusiasm for the project. The author, both an amateur astronomer and a professional landscape architect, answers many of the common questions asked about observatory construction, covering the following topics: • Zoning, and by-law requirements common to most states, towns and municipalities • Where to locate the observatory • How to tailor the observatory for your particular needs • Tools and structural components required • Possible variations in de...

  4. Recycling waste brick from construction and demolition of buildings as pozzolanic materials.

    Science.gov (United States)

    Lin, Kae-Long; Wu, Hsiu-Hsien; Shie, Je-Lueng; Hwang, Chao-Lung; An Cheng

    2010-07-01

    This investigation elucidates the pozzolic characteristics of pastes that contain waste brick from building construction and demolition wastes. The TCLP leaching concentrations of waste brick for the target cations or heavy metals were all lower than the current regulatory thresholds of the Taiwan EPA. Waste brick had a pozzolanic strength activity index of 107% after 28 days. It can be regarded as a strong pozzolanic material. The compressive strengths of waste brick blended cement (WBBC) that contain 10% waste brick increased from 71.2 MPa at 28 days to 75.1 MPa at 60 days, an increase of approximately 5% over that period. At 28 days, the pozzolanic reaction began, reducing the amount of Ca(OH)(2) and increasing the densification. The intensity of the peak at 3640 cm(- 1) associated with Ca(OH)(2) is approximately the same for ordinary Portland cement (OPC) pastes. The hydration products of all the samples yield characteristics peaks at 978 cm(-1) associated with C-S-H, and at ~3011 cm(-1) and 1640 cm(-1) associated with water. The samples yield peaks at 1112 cm(-1), revealing the formation of ettringite. In WBBC pastes, the ratio Q(2)/Q(1) increases with curing time. These results demonstrate that increasing the curing time increases the number of linear polysilicate anions in C-S-H. Experimental results reveal that waste brick has potential as a pozzolanic material in the partial replacement of cement.

  5. Capture efficiency of portable high efficiency air filtration devices used during building construction activities.

    Science.gov (United States)

    Newcomer, Derek A; LaPuma, Peter; Brandys, Robert; Northcross, Amanda

    2017-12-29

    The portable high efficiency air filtration (PHEAF) device is used to control particulate matter (PM) generated from construction-type activities occurring within the built environment. Examples of activities where PHEAF devices are mobilized include building renovation, asbestos abatement, remediation of microbial contamination and lead-based paint projects. Designed for use on short-term, temporary projects the PHEAF device captures airborne PM using a high efficiency particulate air (HEPA) filter. This study sought to evaluate the capture efficiency of the PHEAF device in a field setting. An aerosol generator and photometer were used to measure particle penetration through 85 PHEAF devices. Average overall capture efficiency ranged from 41.78% to ≥99.97% with more than 88% of the tests failing to achieve 99.97% capture efficiency. Approximately 73% of the PHEAF device sample population failed to demonstrated HEPA performance criteria during any test round. Higher occurrence of PM concentrations measured around the perimeter of the filter suggested the presence of bypass leakage. While PHEAF devices were effective in capturing a significant quantity of aerosol test agent, these findings suggest that routine testing of the PHEAF device should be conducted to validate performance.

  6. Project-Based Market Competition and Policy Implications for Sustainable Developments in Building and Construction Sectors

    Directory of Open Access Journals (Sweden)

    Min-Ren Yan

    2015-11-01

    Full Text Available Building and construction sectors are significant contributors to the global economy, but their energy consumption necessitates greater commitment to sustainable developments. There is therefore a growing demand for green innovation in the form of cleaner production and policies to meet the modern requirements of sustainability. However, the nature in which public work is undertaken is in an environment of project-based market competition, whereby contractors routinely bid for contracts under specific project awarding systems, and variations are accompanied with the unique scope of individual projects before the final goods or services are delivered. A comprehensive understanding of the characteristics and contractors’ behavior in systems could help to identify the leverage points of policies. This paper proposes a system dynamics model, with quantitative analysis and simulations, to demonstrate the problems of a system with different project awarding systems and ineffective market performance. The framework of market efficiency and performance measures has been proposed to evaluate the project-based competition mechanism. Managerial policy implications for market efficiency and sustainable developments can thus be systematically discussed and compared through iterative computer simulations and scenario analysis.

  7. Experimental study of diffuse ceiling ventilation coupled with a thermally activated building construction in an office room

    DEFF Research Database (Denmark)

    Zhang, Chen; Heiselberg, Per Kvols; Pomianowski, Michal Zbigniew

    2015-01-01

    This paper presents and analyses the performance of an integrated system with diffuse ceiling ventilation and a thermally activated building construction. A full-scale experiment is carried out in a hot box with an office setup. The performance of the integrated system is evaluated under different...

  8. Advancing Integrated STEM Learning through Engineering Design: Sixth-Grade Students' Design and Construction of Earthquake Resistant Buildings

    Science.gov (United States)

    English, Lyn D.; King, Donna; Smeed, Joanna

    2017-01-01

    As part of a 3-year longitudinal study, 136 sixth-grade students completed an engineering-based problem on earthquakes involving integrated STEM learning. Students employed engineering design processes and STEM disciplinary knowledge to plan, sketch, then construct a building designed to withstand earthquake damage, taking into account a number of…

  9. The Insight of Industrialised Building System (IBS) By Bumiputera Construction Players

    National Research Council Canada - National Science Library

    Muhammad, W. M. N. W; Azman, M. A; Othman, M. K. F; Hadi, N. A; Sahimi, S. N. S; Mohammad, M. F

    2016-01-01

    ... and effectiveness. At the same time, Bumiputera construction players are the majority of parties in construction industry especially in Small and Medium Enterprises (SMEs). Therefore, the purpose...

  10. Building defects in Danish construction: project characteristics influencing the occurrence of defects at handover

    DEFF Research Database (Denmark)

    Schultz, Casper Siebken; Jørgensen, Kirsten; Bonke, Sten

    2015-01-01

    about correlations between project characteristics and the extent of defects measured at handover. Results show statistically significant differences between building projects characterized by no or few defects compared with building projects with many and/ or serious defects. Determining...

  11. A review on the current issues and barriers of Industrialised Building System (IBS) adoption in Malaysia’s construction industry

    Science.gov (United States)

    Amin, M. A. Mohd; Abas, N. H.; Shahidan, S.; Rahmat, M. H.; Suhaini, N. A.; Nagapan, S.; Rahim, R. Abdul

    2017-11-01

    Malaysia considers the construction industry as one of the main contributors to its Gross Domestic Product (GDP). However, there are some unresolved issues arising from the ongoing and widespread adoption of the conventional method of construction such as the resultant fragmentation of the industry itself; delays in production and delivery time of unnecessary wastages and lack of sustainability practice. Malaysian Government has been continuously encouraging the industry to use, partly or if not wholly, the Industrialized Building System (IBS), which is considered to be an important part of sustainable construction initiative. IBS was introduced to Malaysia as the solution to issues related to dependencies of foreign workers, raising demand for affordable accommodations and improving image, quality and productivity of construction industry. However, the IBS adoption in Malaysia remains low. This paper presents the review of the current issues and barriers of IBS adoption in Malaysian construction industry.

  12. Mathematical modeling of stress-strain state of the system HPP building - soil base with account for the phased construction of the building

    Directory of Open Access Journals (Sweden)

    Orekhov Vyacheslav Valentinovich

    Full Text Available The interaction process of a power plant building with the soil base is studied basing on mathematical modeling of the construction process of Kambarata-2 HPP, taking into account the excavation of foundation pit, the concreting schedule of the building construction, the HPP units putting into operation and territory planning. Mathematical modeling of stress-strain state of the system “power plant - soil base” in the process of construction was performed by using the computer program “Zemlya” (the Earth, which implements the method of finite elements. Such a behavior of soil was described using elastoplastic soil model, the parameters of which were determined from the results of the triaxial tests. As shown by the results of the research, the continuous change of settlement, slope, deflection and torsion of the bottom plate and accordingly change of stressed-strained state of power plant are noted during the construction process. The installed HPP construction schedule, starting from the construction of the first block and the adjacent mounting platform, is leading to the formation of initial roll of bottom plate to the path of the mounting pad. In the process of further construction of powerhouse, up to the 29th phase of construction (out of 40, a steady increase in its subsidence (maximum values of about 4.5 cm is noted. Filling of foundation pit hollows and territorial planning of the construction area lead to drastic situation. In this case, as a territory planning points exceeded the relief, the plastic deformation in the soil evolves, resulting in significant subsidence of the bottom plate under the first block (up to 7.4 cm. As a result, the additional subsidence of the soil of bottom plate edges lead to the large vertical movement in relation to its central part and it is bent around the X axis, resulting in a large horizontal tensile stress values of Sz (up to 2.17 MPa in the constructive elements of the upper part of the

  13. Lessons learned from new construction utility demand side management programs and their implications for implementing building energy codes

    Energy Technology Data Exchange (ETDEWEB)

    Wise, B.K.; Hughes, K.R.; Danko, S.L.; Gilbride, T.L.

    1994-07-01

    This report was prepared for the US Department of Energy (DOE) Office of Codes and Standards by the Pacific Northwest Laboratory (PNL) through its Building Energy Standards Program (BESP). The purpose of this task was to identify demand-side management (DSM) strategies for new construction that utilities have adopted or developed to promote energy-efficient design and construction. PNL conducted a survey of utilities and used the information gathered to extrapolate lessons learned and to identify evolving trends in utility new-construction DSM programs. The ultimate goal of the task is to identify opportunities where states might work collaboratively with utilities to promote the adoption, implementation, and enforcement of energy-efficient building energy codes.

  14. Selection of emission factor standards for estimating emissions from diesel construction equipment in building construction in the Australian context.

    Science.gov (United States)

    Zhang, Guomin; Sandanayake, Malindu; Setunge, Sujeeva; Li, Chunqing; Fang, Jun

    2017-02-01

    Emissions from equipment usage and transportation at the construction stage are classified as the direct emissions which include both greenhouse gas (GHG) and non-GHG emissions due to partial combustion of fuel. Unavailability of a reliable and complete inventory restricts an accurate emission evaluation on construction work. The study attempts to review emission factor standards readily available worldwide for estimating emissions from construction equipment. Emission factors published by United States Environmental Protection Agency (US EPA), Australian National Greenhouse Accounts (AUS NGA), Intergovernmental Panel on Climate Change (IPCC) and European Environmental Agency (EEA) are critically reviewed to identify their strengths and weaknesses. A selection process based on the availability and applicability is then developed to help identify the most suitable emission factor standards for estimating emissions from construction equipment in the Australian context. A case study indicates that a fuel based emission factor is more suitable for GHG emission estimation and a time based emission factor is more appropriate for estimation of non-GHG emissions. However, the selection of emission factor standards also depends on factors like the place of analysis (country of origin), data availability and the scope of analysis. Therefore, suitable modifications and assumptions should be incorporated in order to represent these factors. Copyright © 2016 Elsevier Ltd. All rights reserved.

  15. Construction execution and techology optimization – commercial and business building case study

    OpenAIRE

    Kumalić, Emir

    2010-01-01

    The key element for successful construction site is time-schedule, which allows us time organizing of construction site itself and reliable evaluation of construction course. In my work I discuss organization of construction site and construction technology, with emphasis on optimization of time-schedule. I applied it on the case of commercial-business object, which will be built in Ljubljana. After introduction, I have described this object further I described work technology and preparatory...

  16. Structural equation modelling of building quality constructs as a predictor of satisfaction in subsidised low-income housing

    Directory of Open Access Journals (Sweden)

    Clinton Aigbavboa

    2014-07-01

    Full Text Available Residents’ satisfaction with the building quality and housing condition features has received an increasing recognition as a significant factor which influences the occupants’ satisfaction with their housing units. This paper reports the use of Structural Equation Modelling technique to test the influence of building quality features as a predictor of residents’ satisfaction. The study was conducted amongst South Africa housing practitioners’ and the low-income housing occupants’. Data used in the study were obtained from a Delphi and field questionnaire study. Primary data were collected by a face-to-face administered questionnaire survey conducted among 751 low-income housing residents’ in three metropolitan and one district municipality in the Gauteng Province of South Africa. Data gathered via the questionnaire survey were analysed using structural equation modelling (SEM which was used to assess the factorial structure of the constructs. Using Structural Equation Modelling software - EQS version 6.2, the factorial structure, reliability and validity of building quality features indicator variables were investigated. The statistical results support the research hypothesised positive relationship that building quality feature has a direct influence in predicting residents’ satisfaction with their houses. Also, the influence of building quality feature on residents’ satisfaction was statistically significant. Further SEM analysis revealed that the Rho and the Cronbach’s alpha coefficients of internal consistency were over 0.70 criterions for acceptability, and the constructs shows a good mode fit to the sample data. The Z-statistics analysis also revealed that the constructs have direct influence in determining low-income residents’ satisfaction with their houses. The result advocates a practical consideration of these construct in future development of subsidised low-income housing in South Africa.

  17. Design, Specification and Construction of Specialized Measurement System in the Experimental Building

    Science.gov (United States)

    Fedorczak-Cisak, Malgorzata; Kwasnowski, Pawel; Furtak, Marcin; Hayduk, Grzegorz

    2017-10-01

    Experimental buildings for “in situ” research are a very important tool for collecting data on energy efficiency of the energy-saving technologies. One of the most advanced building of this type in Poland is the Maloposkie Laboratory of Energy-saving Buildings at Cracow University of Technology. The building itself is used by scientists as a research object and research tool to test energy-saving technologies. It is equipped with a specialized measuring system consisting of approx. 3 000 different sensors distributed in technical installations and structural elements of the building (walls, ceilings, cornices) and the ground. The authors of the paper will present the innovative design and technology of this specialized instrumentation. They will discuss issues arising during the implementation and use of the building.

  18. Construction and Reconstruction Efforts in Nation Building: Planning for Everything in Afghanistan Except the Afghans

    Science.gov (United States)

    2015-04-01

    the US military does not have a monopoly on inappropriate nation-building habits and performance. The key is to take lessons from these examples...offer. We had authorization to hand out small items to commanders and troops to include care products, food and snack items, building supplies, and...Material. New Mexico Geology November 1984, 69-71. 15 David Leman, US Watchdog Warns of Fire Risk in Afghan Army Buildings. www.bloomberg.com/news/2013-04

  19. Usability evaluation of mobile ICT support used at the building construction site

    DEFF Research Database (Denmark)

    Christiansson, Per; Svidt, Kjeld

    2006-01-01

    are derived from the Danish project 'IT at the Construction site' started in 2003 and ended in may 2005. The project is now followed up by the newly started 'IT and resource management at the construction site' project. The project has involved several small to medium sized construction enterprises...

  20. Risk Factors of Building Apartments for University Talent through the Agent Construction Mode in China: Interrelationship and Prioritization

    Directory of Open Access Journals (Sweden)

    Zhengrong Liu

    2016-03-01

    Full Text Available Apartments for university talent (AUT, are apartments provided to staff at non-market price, in order to attract outstanding scholars from around the world to work in universities and improve educational quality. This has been a critical issue in achieving social sustainability in China during rapid urbanization and industrialization. The agent construction mode has been adopted to build AUT because universities usually lack relevant management experience. The agent construction mode is a type of turnkey engineer construction based on the principal-agent model, project bidding mode, engineering contracting projects, and project supervision system. Risk factors are important considerations for both universities and agent construction companies. Although some studies have investigated the risk factors, only a few studies have identified the hierarchical structure of relevant risk factors. Therefore, the interrelationship and prioritization of the risk factors remain unknown, and this situation presents a barrier to better risk management. This paper investigates the interrelationship of risk factors with interpretative structural modeling (ISM. In addition, fuzzy MICMAC (matric d’impacts croises-multiplication appliqué a un classemen analysis was conducted to prioritize the risk factors. The findings provide useful references for better risk management of building AUT through the agent construction mode. Although this study focuses on China, the analytical process can also be generalized to other research topics and other countries.

  1. Post-Insulation of Existing Buildings Constructed Between 1850 and 1920

    DEFF Research Database (Denmark)

    Rasmussen, Torben Valdbjørn

    2010-01-01

    Tightened requirements for thermal insulation of new buildings and the demand for a reduction of energy consumption for heating and comfort in order to reduce carbon dioxide (CO2) emissions mean that existing and especially older buildings have a very low thermal standard compared with today...

  2. Synthesis of aromatic glycoconjugates. Building blocks for the construction of combinatorial glycopeptide libraries

    Directory of Open Access Journals (Sweden)

    Markus Nörrlinger

    2014-10-01

    Full Text Available New aromatic glycoconjugate building blocks based on the trifunctional 3-aminomethyl-5-aminobenzoic acid backbone and sugars linked to the backbone by a malonyl moiety were prepared via peptide coupling. The orthogonally protected glycoconjugates, bearing an acetyl-protected glycoside, were converted into their corresponding acids which are suitable building blocks for combinatorial glycopeptide synthesis.

  3. Learning from tradition. Construction techniques and repair of historical buildings in the area of Brescia: some examples

    Directory of Open Access Journals (Sweden)

    Barbara Scala

    2016-06-01

    The essay focuses on the area of Brescia where, in spite of significant transformations over time of buildings and territory, many examples of traditional architecture still exist. The aim of the paper is also to suggest, by presenting some case studies, a strategy for conservation which proposes a dialogue between traditional methods, technological innovations and economic sustainability of interventions. Keywords: Traditional architecture, Brescia, Sustainability, Construction techniques, Protection

  4. Moisture transfer and change in strength during the construction of earthen buildings

    Directory of Open Access Journals (Sweden)

    Schroeder, H.

    2011-09-01

    Full Text Available A number of rammed earth projects constructed in recent years in Germany and abroad testify to the high level of architectural interest in this material, not only in our country. Rammed earth has been “rediscovered”, in particular by young architects, due to its unique materiality and fascinating and individual surface aesthetics. In connection with the realisation of two rammed earth projects realised in Thuringia, Germany, in 2003/2004 some questions arose concerning the process of moisture transfer and changes in strength properties during construction. The earthen building standards detail only very rough estimates of drying times for rammed earth walls. The idea arose to develop a test programme for investigating the aspect of drying time with regard to the change in material strength in rammed earth walls, as well as for elaborating general aspects of testing procedures for rammed earth in standards. The paper presents results of a laboratory programme that attempts to approach this very complex problem. A series of test specimens were produced and the unconfined compressive strength was determined after different drying times varying from 7 to 90 days. The moisture content of the test specimens also was varied: at OMC (Proctor test and above and below the OMC.

    Una serie de proyectos de tierra apisonada construidos en los últimos años en Alemania y en el extranjero dan testimonio del alto nivel de interés arquitectónico en este material, no solo en nuestro país. La tierra apisonada ha sido “redescubierta”, en particular por los arquitectos jóvenes, debido a su materialidad única y fascinante y la estética singular de su superficie. En relación con la realización de dos proyectos de tierra apisonada realizados en Turingia, Alemania, en el período 2003/2004 surgieron algunas preguntas sobre el proceso de transferencia de la humedad y los cambios en las propiedades de resistencia durante la construcción. Las

  5. Steel Construction of Modern Building of Former Sports Hall at Chopin Street in Zielona Góra

    Directory of Open Access Journals (Sweden)

    Michalak Bartosz

    2016-06-01

    Full Text Available Modernism in architecture of the lubuskie voivodeship is not dominating style. Objects created in the period of its greatest popularity are still fighting for recognition of their value as historical monuments. One of such facilities in Zielona Góra is building at Chopin street, where today is The Teacher Training Centre. However, originally object was intended to be a sports hall. The topic worth of further analysis is the construction of the building. The skeleton is a unique steel frame, made in 1930 by the famous pre-war company Fabrik und für Brückenbau Eisenkonstruktionen BEUCHELT & Co. Grünberg in Schlesien. In order to build walls the brick technology was used. It is a rarely seen combination that indicates the attempt to experiment with new solutions by engineers of the era of modernism.

  6. Steel Construction of Modern Building of Former Sports Hall at Chopin Street in Zielona Góra

    Science.gov (United States)

    Michalak, Bartosz

    2016-06-01

    Modernism in architecture of the lubuskie voivodeship is not dominating style. Objects created in the period of its greatest popularity are still fighting for recognition of their value as historical monuments. One of such facilities in Zielona Góra is building at Chopin street, where today is The Teacher Training Centre. However, originally object was intended to be a sports hall. The topic worth of further analysis is the construction of the building. The skeleton is a unique steel frame, made in 1930 by the famous pre-war company Fabrik und für Brückenbau Eisenkonstruktionen BEUCHELT & Co. Grünberg in Schlesien. In order to build walls the brick technology was used. It is a rarely seen combination that indicates the attempt to experiment with new solutions by engineers of the era of modernism.

  7. Energy Value Housing Award Guide: How to Build and Profit with Energy Efficiency in New Home Construction

    Energy Technology Data Exchange (ETDEWEB)

    Sikora, J. L.

    2001-06-01

    As concern over the environment grows, builders have the potential to fulfill a market niche by building homes that use fewer resources and have lower environmental impact than conventional construction. Builders can increase their marketability and customer satisfaction and, at the same time, reduce the environmental impact of their homes. However, it takes dedication to build environmentally sound homes along with a solid marketing approach to ensure that customers recognize the added value of energy and resource efficiency. This guide is intended for builders seeking suggestions on how to improve energy and resource efficiency in their new homes. It is a compilation of ideas and concepts for designing, building, and marketing energy- and resource-efficient homes based on the experience of recipients of the national Energy Value Housing Award (EVHA).

  8. Toward Net Energy Buildings: Design, Construction, and Performance of the Grand Canyon House

    Energy Technology Data Exchange (ETDEWEB)

    Balcomb, J. D.; Hancock, C. E.; Barker, G.

    1999-06-23

    The Grand Canyon house is a joint project of the DOE's National Renewable Energy Laboratory and the U.S. National Park Service and is part of the International Energy Agency Solar Heating and Cooling Programme Task 13 (Advanced Solar Low-Energy Buildings). Energy consumption of the house, designed using a whole-building low-energy approach, was reduced by 75% compared to an equivalent house built in accordance with American Building Officials Model Energy Code and the Home Energy Rating System criteria.

  9. Investigation of Industrialised Building System Performance in Comparison to Conventional Construction Method

    Directory of Open Access Journals (Sweden)

    Othuman Mydin M.A.

    2014-03-01

    Full Text Available Conventional construction methods are still widely practised, although many researches have indicated that this method is less effective compared to the IBS construction method. The existence of the IBS has added to the many techniques within the construction industry. This study is aimed at making comparisons between the two construction approaches. Case studies were conducted at four sites in the state of Penang, Malaysia. Two projects were IBS-based while the remaining two deployed the conventional method of construction. Based on an analysis of the results, it can be concluded that the IBS approach has more to offer compared to the conventional method. Among these advantages are shorter construction periods, reduced overall costs, less labour needs, better site conditions and the production of higher quality components.

  10. Expressivity in Open-ended Constructive Play: Building and Playing Musical Lego Instruments

    DEFF Research Database (Denmark)

    Jakobsen, Kasper; Stougaard, Jeppe; Petersen, Marianne Graves

    2016-01-01

    This paper presents the findings from a case study in designing for open-ended constructive play for children. The study is based on a workshop where more that 150 children in ages 3-13 built and played their own musical instruments from Lego. The children used different sensors for playing......, and gives insight into the open-ended qualities of constructive play with music. Based on these findings we propose the Constructive Play Expressivity Model, as a tool for guiding designers’ way of thinking about different areas of expressivity, when designing for constructive play interaction....

  11. The Significance of Coordination for Industrialised Building System (IBS Precast Concrete in Construction Industry

    Directory of Open Access Journals (Sweden)

    Fitri Othman Mohd Khairul

    2017-01-01

    Full Text Available IBS precast concrete is construction system which is meant to improve the conventional construction process. However IBS precast concrete projects are suffering from serious problems such as cost overrun, delays and less quality of the end product. The absence of coordination is perceived as the reason for this issue. The purpose of this paper is to review the significance of coordination for IBS precast concrete in the construction industry. It if found that the fragmentation which occurs in the construction industry requires continuity of coordination due to the construction activities are intertwined in nature. Coordination is designated to assist stakeholders in completing and complementing each other with the paramount focus of achieving the objective. Proper coordination is required in delivering the desired construction product at the ideal time, cost and quality. As for the findings, the significance of coordination for IBS precast concrete can be seen through the precast concrete construction phases which consist of planning; design; manufacturing; transportation and installation/construction. These phases are meant to complement construction process with the purpose to reduce issues of fragmentation and enhance IBS precast concrete project delivery.

  12. Streamlining Demand Fulfilment Chain in Construction Projects : The Case of a Pre Engineered Steel Building Manufacturer

    NARCIS (Netherlands)

    Roosmalen, K.; van Weele, A.; Ashayeri, J.

    2010-01-01

    Practical implications – The results of this paper clearly verify the need for mind change among Pre Engineered and Structural Steel Building firms operating in the Middle-East. Supply chain management methods should be used to improve competitiveness.

  13. Sustainable use of oil sands for geotechnical construction and road building

    CSIR Research Space (South Africa)

    Anochie-Boateng, Joseph

    2012-02-01

    Full Text Available established essential trends in oil sand behavior for developing laboratory guidelines and test protocols and typical material characterization models for their sustainable use in geotechnical and road building applications....

  14. Barbarian architecture in Moravia during the first centuries AD - Building materials, constructions and groundplan layout

    Czech Academy of Sciences Publication Activity Database

    Šedo, Ondrej; Knápek, Radka

    2016-01-01

    Roč. 16, č. 1 (2016), s. 71-80 ISSN 1213-1962 Institutional support: RVO:68081758 Keywords : Moravia * Roman period * structures of Barbarians * building foundations * geometry Subject RIV: AC - Archeology, Anthropology, Ethnology

  15. Towards Integrated Team Practice: A Case of Malaysian Industrialised Building System (IBS) Construction Projects

    National Research Council Canada - National Science Library

    Mohd Nawi, Mohd Nasrun; Nadarajan, Santhisegaran; Omar, Mohd Faizal; Zaidi, Mohd Azian; Mat Yasin, Mohd Fadzil

    2014-01-01

    .... Integrated team practice is perceived as paramount. Unfortunately, there has a limitation of study focus on the dimension of fully integrated team especially for Malaysian Industrialised Building System (IBS) projects...

  16. ON THE NECESSITY OF RADIATION SURVEY OF THE BUILDINGS AFTER THE CONSTRUCTION, REPAIR OR RECONSTRUCTION

    Directory of Open Access Journals (Sweden)

    G. A. Gorsky

    2010-01-01

    Full Text Available The article presents regulation of radon concentration in the air of dwellings and public buildings in Russia in the historical aspect. It is shown with a specific reference to Saint-Petersburg that implementation of obligatory radiation survey of new buildings has led to the significant reduction of radon concentration in the dwelling air and, consequently, the levels of population exposure due to natural sources.

  17. A Real-Time Construction Safety Monitoring System for Hazardous Gas Integrating Wireless Sensor Network and Building Information Modeling Technologies.

    Science.gov (United States)

    Cheung, Weng-Fong; Lin, Tzu-Hsuan; Lin, Yu-Cheng

    2018-02-02

    In recent years, many studies have focused on the application of advanced technology as a way to improve management of construction safety management. A Wireless Sensor Network (WSN), one of the key technologies in Internet of Things (IoT) development, enables objects and devices to sense and communicate environmental conditions; Building Information Modeling (BIM), a revolutionary technology in construction, integrates database and geometry into a digital model which provides a visualized way in all construction lifecycle management. This paper integrates BIM and WSN into a unique system which enables the construction site to visually monitor the safety status via a spatial, colored interface and remove any hazardous gas automatically. Many wireless sensor nodes were placed on an underground construction site and to collect hazardous gas level and environmental condition (temperature and humidity) data, and in any region where an abnormal status is detected, the BIM model will alert the region and an alarm and ventilator on site will start automatically for warning and removing the hazard. The proposed system can greatly enhance the efficiency in construction safety management and provide an important reference information in rescue tasks. Finally, a case study demonstrates the applicability of the proposed system and the practical benefits, limitations, conclusions, and suggestions are summarized for further applications.

  18. Size distributions of airborne microbes in moisture-damaged and reference school buildings of two construction types

    Science.gov (United States)

    Meklin, T.; Reponen, T.; Toivola, M.; Koponen, V.; Husman, T.; Hyvärinen, A.; Nevalainen, A.

    Any risk assessment of moisture-damaged buildings requires an accurate characterization of the factors contributing to the human exposure. In this study, the size distributions of indoor air viable fungi and bacteria and average mean diameters of the most common fungi in school buildings were determined. One special focus was to analyze how the microbial size distributions are affected by the building frame (either wooden or concrete) and moisture damage in the building. The study was performed in 32 school buildings classified as moisture-damaged (index) and non-damaged (reference) schools according to technical building investigations. Sampling for indoor air microbes was carried out using a cascade impactor that collects particles on six stages (range from 0.65 to >7 μm) according to their aerodynamic diameters. Both wooden and concrete schools had their highest fungal levels in the size range of 1.1-4.7 μm. However, the concentrations of fungi in all size classes were higher in wooden schools than in concrete schools. Moisture damage-associated differences in size distribution, in the particle size range of 1.1-2.1 μm, were seen in concrete schools but not in wooden schools. In general, the average geometric mean diameter ( dg,ave) of total viable fungi was smaller in wooden schools than in concrete schools, and smaller in index schools of both construction types than in their reference schools. Variation in particle size, however, by genus was observed. No differences in particle size distributions of viable airborne bacteria were found. Our results on the dependency of the particle size on the building type and presence of moisture damage provide an interesting point to be considered in assessing the complex issue of indoor-related bioaerosol exposures.

  19. Building a Tree Structure: The Development of Hierarchical Complexity and Interrupted Strategies in Children's Construction Activity

    Science.gov (United States)

    Greenfield, Patricia Marks; Schneider, Leslie

    1977-01-01

    This study examined the construction of a mobile with plastic construction straws in order to study the development of tree representations in a domain other than language. Subjects were 70 children between the ages of 3 and 11. (Author/JMB)

  20. Construction and demolition waste generation rates for high-rise buildings in Malaysia.

    Science.gov (United States)

    Mah, Chooi Mei; Fujiwara, Takeshi; Ho, Chin Siong

    2016-12-01

    Construction and demolition waste continues to sharply increase in step with the economic growth of less developed countries. Though the construction industry is large, it is composed of small firms with individual waste management practices, often leading to the deleterious environmental outcomes. Quantifying construction and demolition waste generation allows policy makers and stakeholders to understand the true internal and external costs of construction, providing a necessary foundation for waste management planning that may overcome deleterious environmental outcomes and may be both economically and environmentally optimal. This study offers a theoretical method for estimating the construction and demolition project waste generation rate by utilising available data, including waste disposal truck size and number, and waste volume and composition. This method is proposed as a less burdensome and more broadly applicable alternative, in contrast to waste estimation by on-site hand sorting and weighing. The developed method is applied to 11 projects across Malaysia as the case study. This study quantifies waste generation rate and illustrates the construction method in influencing the waste generation rate, estimating that the conventional construction method has a waste generation rate of 9.88 t 100 m -2 , the mixed-construction method has a waste generation rate of 3.29 t 100 m -2 , and demolition projects have a waste generation rate of 104.28 t 100 m -2 . © The Author(s) 2016.

  1. Building theories of knowledge translation interventions: use the entire menu of constructs.

    Science.gov (United States)

    Brehaut, Jamie C; Eva, Kevin W

    2012-11-22

    In the ongoing effort to develop and advance the science of knowledge translation (KT), an important question has emerged around how theory should inform the development of KT interventions. Efforts to employ theory to better understand and improve KT interventions have until recently mostly involved examining whether existing theories can be usefully applied to the KT context in question. In contrast to this general theory application approach, we propose a 'menu of constructs' approach, where individual constructs from any number of theories may be used to construct a new theory. By considering the entire menu of available constructs, rather than limiting choice to the broader level of theories, we can leverage knowledge from theories that would never on their own provide a complete picture of a KT intervention, but that nevertheless describe components or mechanisms relevant to it. We can also avoid being forced to adopt every construct from a particular theory in a one-size-fits-all manner, and instead tailor theory application efforts to the specifics of the situation. Using audit and feedback as an example KT intervention strategy, we describe a variety of constructs (two modes of reasoning, cognitive dissonance, feed forward, desirable difficulties and cognitive load, communities of practice, and adaptive expertise) from cognitive and educational psychology that make concrete suggestions about ways to improve this class of intervention. The 'menu of constructs' notion suggests an approach whereby a wider range of theoretical constructs, including constructs from cognitive theories with scope that makes the immediate application to the new context challenging, may be employed to facilitate development of more effective KT interventions.

  2. Oscillations and residual displacements of buildings of varying heights and widths, constructed on elastic-plastic base

    Directory of Open Access Journals (Sweden)

    Ter-Martirosyan Zaven

    2016-01-01

    Full Text Available Modern regulations in the field of design and construction of buildings in seismically dangerous areas provide for stability calculation of bases, foundations and underground structures, i.e. calculations for the first group of limited states. At the same time, calculations for the second group of limited states, like deformations (yields, relative difference in yields, as a rule, are not fulfilled. This state of affairs is due to insufficient knowledge of the issues of appearance and development of additional stress and strain in ground arrays during seismic influences, that ultimately leads to residual yields and rolls of foundations of industrial and civil buildings. Essentially, residual displacements depend on the type and intensity of dynamic effects, as well as on the model foundation soils. At the same time, the most important factor is the compulsory registration of collaboration between the subgrade and the structure. Therefore, quantification of additional residual displacements of foundations of industrial buildings and structures under dynamic loads, is an actual problem of the modern earthquake-resistant construction.

  3. Effective Risk Management in Innovative Projects: A Case Study of the Construction of Energy-efficient, Sustainable Building of the Laboratory of Intelligent Building in Cracow

    Science.gov (United States)

    Krechowicz, Maria

    2017-10-01

    Many construction projects fail to meet deadlines or they exceed the assumed budget. This scenario is particularly common in the case of innovative projects, in which too late identification of a high risk of delays and exceeding the assumed costs makes a potentially profitable project untenable. A high risk level, far exceeding the level of risk in standard non-innovative projects, is a characteristic feature of the realization phase of innovative projects. This is associated not only with greater complexity of the design and construction phases, but also with the problems with application of new technologies and prototype solutions, lack of qualified personnel with suitable expertise in specialized areas, and with the ability to properly identify the gaps between available and required knowledge and skills. This paper discusses the process of effective risk management in innovative projects on the example of the realization phase of an innovative, energy-efficient and sustainable building of the Laboratory of Intelligent Building in Cracow - DLJM Lab, from the point of view of DORBUD S.A., its general contractor. In this paper, a new approach to risk management process for innovative construction projects is proposed. Risk management process was divided into five stages: gathering information, identification of the important unwanted events, first risk assessment, development and choice of risk reaction strategies, assessment of the residual risk after introducing risk reactions. 18 unwanted events in an innovative construction project were identified. The first risk assessment was carried out using two-parametric risk matrix, in which the probability of unwanted event occurrence and its consequences were analysed. Three levels of risks were defined: tolerable, controlled and uncontrolled. Risk reactions to each defined unwanted event were developed. The following risk reaction types were considered: risk retention, risk reduction, risk transfer and risk

  4. Applicability test of new nanotechnology thermal insulation material Spacloft into building constructions

    OpenAIRE

    Zrim, Grega

    2009-01-01

    The subject of the thesis is influence analysis of aerogel thermal insulation material implementation into constructional complexes. The work is separated into three modules, each of them represents a different scale of observation. First one is dedicated to technical characteristics of the material and a short comparison with the characteristics of two other insulation materials. Second module introduces a more vast stationary thermal analysis of the constructional complexes with different c...

  5. T-UP (totally mechanized construction system for high-rise buildings) applied at the Mitsubishi Heavy Industries Yokohama Building phase 1 project. T-UP koho (sogo kikaika koso biru seko system) no jitsuyoka

    Energy Technology Data Exchange (ETDEWEB)

    Furuta, A.; Tawada, T. (Taisei Corp., Tokyo (Japan))

    1993-12-01

    Since rationalization in the construction industry has not easily been advanced so far compared with other industries, an improvement of productivity and safety of it has been regarded as a subject. Accordingly each construction company is grappling with a development of new work method for the building construction, making the totally mechanized construction as a target concept. The T-UP work method is a totally mechanized dynamic construction system for the high-rise buildings. In this method, firstly the mechatronics are added to the most modern technology regarding the building work method, design and materials, and then the uppermost story of the building is constructed on the ground in advance, and subsequently the total building is completed by making it climb up. This work method has many distinctive features, such as the shortening of work term, improvement of quality and work environment, labor saving and so forth. A study of fundamental concept has been initiated in 1988, and it was firstly applied in the new construction work of the Mitsubishi Heavy Industries Yokohama Building phase 1 project. By this application, the total term of work, which has been regarded that 30 months was required by the conventional work method, is anticipated the drastic shortening of the work term, which will be 24 months, namely about 20% of shortening. 19 figs., 3 tabs.

  6. The communication in industrialised building system (IBS) construction project: Virtual environment

    Science.gov (United States)

    Pozin, Mohd Affendi Ahmad; Nawi, Mohd Nasrun Mohd

    2017-10-01

    Large portion of numbers team organization in the IBS construction sector is known are being fragmented. That is contributed from a segregation of construction activity thus create team working in virtually. Virtual team are the nature when teams are working in distributed area, across culture and time. Therefore, teams can be respond to the task without relocating to the site project and settle down a problem through information and communication technology (ICT). The emergence of virtual team are carry out by advancements in communication technologies as a medium to improve project team communication in project delivery process on IBS construction. Based on literature review from previous study and data collected from interviewing, this paper aim to identified communication challenges among project team members according to current project development practices in IBS construction project. Hence, in attempt to develop effective communication through the advantages of virtual team approach for IBS construction project. In order to ensure the data is gathered comprehensively and accurately, the data was collected from project managers by using semi structured interview method. It was found that virtual team approach could be enable competitive challenges on complexity in the construction project management process.

  7. Building ground analyses and expert opinions in district heating pipeline construction. Geotechnical investigations according to DIN 4020; Baugrunduntersuchungen und Baugrundgutachten im Fernwaermeleitungsbau. Geotechnische Untersuchungen nach DIN 4020

    Energy Technology Data Exchange (ETDEWEB)

    Weidlich, Ingo [AGFW Energieeffizienzverband fuer Waerme, Kaelte und KWK e.V., Frankfurt am Main (Germany)

    2010-12-15

    During construction of district heating pipelines, the specifications of the pertinent technical rules must be observed in order to ensure regular construction and to prevent damage. In principle, analyses of the building ground are required depending on the construction project and the pertinent DIN standards. The author lists the standards that are relevant for geotechnical operation, makes an evaluation of these standards, and explains their relevance in the construction of district heating pipelines. (orig.)

  8. Building Information Modeling (BIM) Roadmap: Supplement 2 - BIM Implementation Plan for Military Construction Projects, Bentley Platform

    Science.gov (United States)

    2011-01-01

    such as: 1. Bridges 2. Cadastre and Land Development 3. Communications 4. Electric and Gas Utilities 5. High Performance Buildings 6. Mining...Bentley PowerMap Mapping Based on Power Platform Bentley Descartes Raster Imaging and Manipulation Bentley Cadastre Create, Maintain, and Analyze Land

  9. The response of common building construction technologies to the urban poor and their environment

    CSIR Research Space (South Africa)

    Wekesa, BW

    2010-10-01

    Full Text Available will always be built by the poor themselves. In which case, there is a need for building technologies that are responsive to such communities and their environment in order to empower them to make their own contribution to the process of improving their living...

  10. Sustainable Industrialization in the Building Industry: On the Road to Energy Efficient Construction Management

    DEFF Research Database (Denmark)

    Wandahl, Søren; Ussing, Lene Faber

    2013-01-01

    Since the Brundtland report in 1987, sustainability has been an issue in all parts of the world, and the focus is increasing in these years. In the same period, the building industry has in the same period also been under heavy pressure to increase productivity in the same pace as other manufactu...

  11. Building a New Generation of Learning: Conversations to Catalyze Our Construction

    Science.gov (United States)

    Milliron, Mark David; Plinske, Kathleen; Noonan-Terry, Coral

    2008-01-01

    Rather than focus primarily on the next generation of learners, the authors argue we are best served to focus on building out our on-ground and online infrastructures for a new generation of learning--blending multiple learning modes, technologies, and techniques over the course of the next 15-20 years to serve the diverse array of students from…

  12. Wood-framed building deconstruction : a source of lumber for construction?

    Science.gov (United States)

    Bob Falk

    2002-01-01

    The sounds are much like those found at any building site. Hammers pounding. Saws whining. Lumber in motion. However, everything here seems to be in reverse ... windows and doors are being unhung rather than set in place, nails are being pounded out of boards instead of into them, lumber is being stacked up, banded, and hauled away rather than delivered and unstacked....

  13. Sustainable use of oil sands for geotechnical construction and road building

    CSIR Research Space (South Africa)

    Anochie-Boateng, Joseph

    2012-02-01

    Full Text Available the principal application of these materials for road building has been in the unbound layers of the pavement structure, the full benefits of oil sands, particularly, their sustainability and environmental friendliness are yet to be realized. In their natural...

  14. Operational modal analysis of a steel-frame, low-rise building with L-shaped construction

    Science.gov (United States)

    Sarlo, Rodrigo; Tarazaga, Pablo A.; Kasarda, Mary E.

    2017-04-01

    The Goodwin Hall Smart Infrastructure facility at Virginia Tech is a five-story "smart building" with an integrated network of 213 wired accelerometers. We utilize a subset of 68 sensors to perform high-resolution Operational Modal Analysis (OMA) of the structure under windy conditions. The low-rise, L-shaped construction and high mass, high stiffness properties of Goodwin Hall provide a unique case study in comparison to typical cases of building OMA in literature, which generally feature high-rise buildings with rectangular architectures. Our work focuses on data acquisition and feature extraction, which are two critical steps within a complete structural health monitoring approach. Our detailed methodology establishes guidelines for sensor selection and data processing applicable to this and more general cases. Modal parameters extraction using Stochastic Subspace Identification shows the first four natural frequencies, damping values, participation factors and mode shapes of the building. We hypothesize that high damping values and large differences in the participation of fundamental modes are related to the nature of the wind excitation.

  15. Construction engineering and planning of buildings related to the EPR; Bautechnik und Gebaeudeplanung beim EPR

    Energy Technology Data Exchange (ETDEWEB)

    Kaercher, H.

    1995-06-01

    Among the site-independent unit buildings are the reactor building with annulus; building for safety systems with main control room; new fuel storage pit, emergency power unit, reactor auxiliaries, access building; conventional switchgear building, and the turbine building. All buildings housing safety-related systems are protected against external and internal influences. Among the design-determining external influences are earthquakes, explosion high-pressure wave and aircraft crash. Internal incidents are caused by failure of components and pipes. The most discussed incident in the connection is the failure of the reactor pressure vessel involving core melt release which is safely retained by special devices. Earlier 3D plant models made of plastic have been replaced by 3D CAE computer models. Thus the graphic data of CAD systems have been added to the immense amount of logistic programmes/process data chains. This leads to new planning tools which are able to safely process such amounts of data and at the same time notably reduce planning time and expense. The whole data processing concept is characterized by simple, consistent data structures according to a uniform data model. It enables continual treatment throughout all planning stages and data exchange through simple, uniformly structured interfaces. (orig./HP) [Deutsch] Zu den standortunabhaengigen Blockgebaeuden gehoeren das Reaktorgebaeude mit Ringraum, Gebaeude fuer Sicherheitssysteme mit Hauptwarte, Brennelementbecken-, Notstromerzeuger-, Reaktorhilfsanlagen-, Zugangsgebaeude, konventionelles Schaltanlagengebaeude und das Maschinenhaus. Alle Gebaeude, welche sicherheitsgerichtete Systeme beinhalten, sind gegen aeussere und innere Einwirkungen geschuetzt. Zu den auslegungsbestimmenden aeusseren Einwirkungen zaehlen Erdbeben, Explosionsdruckwelle und Flugzeugabsturz. Innere Stoerfaelle entstehen durch Versagen von Komponenten und Rohrleitungen. Der dabei am meisten diskutierte Fall ist das Versagen des

  16. Building theories of knowledge translation interventions: Use the entire menu of constructs

    Directory of Open Access Journals (Sweden)

    Brehaut Jamie C

    2012-11-01

    Full Text Available Abstract Background In the ongoing effort to develop and advance the science of knowledge translation (KT, an important question has emerged around how theory should inform the development of KT interventions. Discussion Efforts to employ theory to better understand and improve KT interventions have until recently mostly involved examining whether existing theories can be usefully applied to the KT context in question. In contrast to this general theory application approach, we propose a ‘menu of constructs’ approach, where individual constructs from any number of theories may be used to construct a new theory. By considering the entire menu of available constructs, rather than limiting choice to the broader level of theories, we can leverage knowledge from theories that would never on their own provide a complete picture of a KT intervention, but that nevertheless describe components or mechanisms relevant to it. We can also avoid being forced to adopt every construct from a particular theory in a one-size-fits-all manner, and instead tailor theory application efforts to the specifics of the situation. Using audit and feedback as an example KT intervention strategy, we describe a variety of constructs (two modes of reasoning, cognitive dissonance, feed forward, desirable difficulties and cognitive load, communities of practice, and adaptive expertise from cognitive and educational psychology that make concrete suggestions about ways to improve this class of intervention. Summary The ‘menu of constructs’ notion suggests an approach whereby a wider range of theoretical constructs, including constructs from cognitive theories with scope that makes the immediate application to the new context challenging, may be employed to facilitate development of more effective KT interventions.

  17. 2001 - 2010 Danish design reference year. Reference climate dataset for technical dimensioning in building, construction and other sectors

    Energy Technology Data Exchange (ETDEWEB)

    Grunnet Wang, P.; Scharling, M.; Pagh Nielsen, K.; Kern-Hansen, C. [Danish Meteorological Institute (DMI), Copenhagen (Denmark); Wittchen, K.B. [Aalborg Univ., Danish Building Research Institute (SBi), Copenhagen (Denmark)

    2013-09-15

    This report presents the Danish Design Reference Year based on observed data from 2001 - 2010. In various sectors - i.e. building and construction, energy, etc. - the climate and weather usually plays a part in a given project. The Danish Design Reference Year dataset is a collection of data series for eleven specific parameters, that each represents a typical year in Denmark. The uses of the dataset may vary from simulations to statistical analysis, graphical overviews etc. The Danish land areas have been sectionalised into five to six climatological zones depending on the parameter, each characterized by distinct diurnal and yearly variations. The dataset consists of observed data from one station located within and representing each zone. In addition to the complete Danish Design Reference Year dataset, a subset specifically selected to be used for energy performance calculations for obtaining a building permit is included. (Author)

  18. Life Cycle Assessment in Building: A Case Study on the Energy and Emissions Impact Related to the Choice of Housing Typologies and Construction Process in Spain

    Directory of Open Access Journals (Sweden)

    Antonio Ángel Rodríguez Serrano

    2016-03-01

    Full Text Available While there exists an international trend to develop zero or near zero emissions building solutions by 2020, and European governments continuously update their building regulations to optimize the building envelope and energy systems to achieve this during the building use stage, at least in Spain the building regulations do not take into account the impact of emissions resulting from urbanization and construction activities prior to building use. This research studies in detail the entire emissions balance (and how it may be related to energy efficiency in a newly built residential cluster project in Mancha Real (Jaén, Spain, and influences due to the choice of different urban typologies. For comparison, terraced housing and low-density, four-floor, multi-family housing alternatives have been studied. The present work assessed the life cycle of the building with the help of commercial software (CYPE, and the energy efficiency and emissions according to the legal regulations in Spain with the official software LIDER and CALENER VYP. After a careful choice of building and systems alternatives and their comparison, the study concludes that the major emissions impact and energy costs of urbanization and building activity occurs during construction, while later savings due to reductions in building use emissions are very modest in comparison. Therefore, deeper analysis is suggested to improve the efficiency of the construction process for a significantly reduced emission footprint on the urban environment.

  19. A Comparative Cradle-to-Gate Life Cycle Assessment of Mid-Rise Office Building Construction Alternatives: Laminated Timber or Reinforced Concrete

    National Research Council Canada - National Science Library

    Robertson, Adam B; Lam, Frank C. F; Cole, Raymond J

    2012-01-01

    ... (cross-laminated timber (CLT) and glulam). The boundary of the quantitative analysis was cradle-to-construction site gate and encompassed the structural support system and the building enclosure...

  20. Guided Inquiry and Consensus-Building Used to Construct Cellular Models

    Directory of Open Access Journals (Sweden)

    Joel I. Cohen

    2015-02-01

    Full Text Available Using models helps students learn from a “whole systems” perspective when studying the cell. This paper describes a model that employs guided inquiry and requires consensus building among students for its completion. The model is interactive, meaning that it expands upon a static model which, once completed, cannot be altered and additionally relates various levels of biological organization (molecular, organelle, and cellular to define cell and organelle function and interaction. Learning goals are assessed using data summed from final grades and from images of the student’s final cell model (plant, bacteria, and yeast taken from diverse seventh grade classes. Instructional figures showing consensus-building pathways and seating arrangements are discussed. Results suggest that the model leads to a high rate of participation, facilitates guided inquiry, and fosters group and individual exploration by challenging student understanding of the living cell.

  1. Construction

    Science.gov (United States)

    2002-01-01

    San Juan, PR Tren Urbano Subway Project, San Juan, PR U.S. Army South, San Juan, PR U.S. Coast Guard Housing Project, San Juan, PR U.S. Coast Guard...construction?, Foresight/CRISP Workshop on Nanotechnology, Royal Society of Arts . Cheltenham, England: 2001, p.5. 56 Concrete Proposals, Economist, July 24

  2. Life-Cycle Evaluation of Concrete Building Construction as a Strategy for Sustainable Cities

    OpenAIRE

    Stadel, Alexander

    2013-01-01

    Structural materials in commercial buildings in the United States account for a significant fraction of national energy use, resource consumption, and greenhouse gas (GHG) emissions. Robust decisions for balancing and minimizing these various environmental effects require that structural materials selections follow a life-cycle, systems modeling approach. This report provides a concise overview of the development and use of a new life-cycle assessment (LCA) model for structural materials in ...

  3. Life Cycle Assessment and Optimization-Based Decision Analysis of Construction Waste Recycling for a LEED-Certified University Building

    Directory of Open Access Journals (Sweden)

    Murat Kucukvar

    2016-01-01

    Full Text Available The current waste management literature lacks a comprehensive LCA of the recycling of construction materials that considers both process and supply chain-related impacts as a whole. Furthermore, an optimization-based decision support framework has not been also addressed in any work, which provides a quantifiable understanding about the potential savings and implications associated with recycling of construction materials from a life cycle perspective. The aim of this research is to present a multi-criteria optimization model, which is developed to propose economically-sound and environmentally-benign construction waste management strategies for a LEED-certified university building. First, an economic input-output-based hybrid life cycle assessment model is built to quantify the total environmental impacts of various waste management options: recycling, conventional landfilling and incineration. After quantifying the net environmental pressures associated with these waste treatment alternatives, a compromise programming model is utilized to determine the optimal recycling strategy considering environmental and economic impacts, simultaneously. The analysis results show that recycling of ferrous and non-ferrous metals significantly contributed to reductions in the total carbon footprint of waste management. On the other hand, recycling of asphalt and concrete increased the overall carbon footprint due to high fuel consumption and emissions during the crushing process. Based on the multi-criteria optimization results, 100% recycling of ferrous and non-ferrous metals, cardboard, plastic and glass is suggested to maximize the environmental and economic savings, simultaneously. We believe that the results of this research will facilitate better decision making in treating construction and debris waste for LEED-certified green buildings by combining the results of environmental LCA with multi-objective optimization modeling.

  4. Bibliometric analysis of Spanish scientific publications in the subject Construction & Building Technology in Web of Science database (1997-2008

    Directory of Open Access Journals (Sweden)

    Rojas-Sola, J. I.

    2010-12-01

    Full Text Available In this paper the publications from Spanish institutions listed in the journals of the Construction & Building Technology subject of Web of Science database for the period 1997- 2008 are analyzed. The number of journals in whose is published is 35 and the number of articles was 760 (Article or Review. Also a bibliometric assessment has done and we propose two new parameters: Weighted Impact Factor and Relative Impact Factor; also includes the number of citations and the number documents at the institutional level. Among the major production Institutions with greater scientific production, as expected, the Institute of Constructional Science Eduardo Torroja (CSIC, while taking into account the weighted impact factor ranks first University of Vigo. On the other hand, only two journals Cement and Concrete Materials and Materials de Construction agglutinate the 45.26% of the Spanish scientific production published in the Construction & Building Technology subject, with 172 papers each one. Regarding international cooperation, include countries such as England, Mexico, United States, Italy, Argentina and France.

    En este trabajo se analizan las publicaciones procedentes de instituciones españolas recogidas en las revistas de la categoría Construction & Building Technology de la base de datos Web of Science para el periodo 1997-2008. El número de revistas incluidas es de 35 y el número de artículos publicados ha sido de 760 (Article o Review. Se ha realizado una evaluación bibliométrica con dos nuevos parámetros: Factor de Impacto Ponderado y Factor de Impacto Relativo; asimismo se incluyen el número de citas y el número de documentos a nivel institucional. Entre los centros con una mayor producción científica destaca, como era de prever, el Instituto de Ciencias de la Construcción Eduardo Torroja (CSIC, mientras que atendiendo al Factor de Impacto Ponderado ocupa el primer lugar la Universidad de Vigo. Por otro lado, sólo dos

  5. Fuzzy decision approach for selection of most suitable construction method of Green Buildings

    Directory of Open Access Journals (Sweden)

    Sunita Bansal

    2017-06-01

    Full Text Available A big challenge in sustainable projects is selection of appropriate construction method and is considered to be the decisive factor for its success. Many environment friendly prefabricated elements are entering into the market at an increasing pace. This has increased the workload and inquisitiveness of the stakeholders who will need information about their environmental, technical and esthetic aspects. The use of prefabrication in sustainable construction is advantageous but appropriate decision criteria and their weightage for applicability assessments for a project from every stakeholder’s perspective is found to be deficient. Decisions to use prefabricated elements are still largely based on anecdotal evidence or cost-based evaluation rather than holistic sustainable performance. But authenticated information is seldom available and suitability within the project requirements is always debatable. Environmental decisions, being closely coupled with society’s built-in uncertainties and risks, are uncertain since ecological systems as well as social systems change in the future. Thus the selection of a suitable construction method has been perceived as a multi-criteria decision-making problem highly intensive in knowledge with partial information and uncertainty. This knowledge or perception base from the minds of experts has to be collected and processed for a decision. Fuzzy synthetic evaluation method using analytic hierarchy process by Saaty has been adopted to provide an analytical tool to evaluate the applicability of prefabricated or on-site construction method.

  6. Global Multidisciplinary Learning in Construction Education: Lessons from Virtual Collaboration of Building Design Teams

    Directory of Open Access Journals (Sweden)

    Hao J.

    2012-01-01

    Full Text Available Construction is a multidisciplinary activity in which effective communication between parties is essential for successful construction projects. However, the construction industry has been characterised by fragmentation, which prevents seamless communication. This problem has been further exacerbated by the need to communicate over distance within a time constraint in an increasingly interconnected and globalised construction sector. This has brought a particular challenge to the education sector in preparing the future graduates to work in this context. The paper reports on an on-going Hewlett Packard-sponsored project to implement an innovative learning approach which consists of distanced collaboration between students from different disciplines from two Universities in the UK and Canada. The empirical work involved interviews and questionnaire survey at different stages of the project. The preliminary findings reveal the impact of disciplinary training on the development of effective virtual collaboration, although this has been moderated, to some extent, by their earlier (not so positive experience during the course of the project. The research provides a material for further reflection and may serve as a useful consideration for future development of a guiding framework for effective training of built environment professionals.

  7. Living building and the associated R&D based manufacturers; the revolution towards evolutionary construction

    NARCIS (Netherlands)

    De Ridder, H.

    2011-01-01

    The construction industry is not sustainable. Expressed in percentages of the totals in the Netherlands and when calculated over the total lifecycle, from the early start to the processing of waste after demolition, energy consumption is more than 50%, CO2 emission is more than 50%, waste production

  8. Analysis of noise on construction sites of high-rise buildings.

    Science.gov (United States)

    Barkokébas, Béda; Vasconcelos, Bianca M; Lago, Eliane Maria G; Alcoforador, Aline Fabiana P

    2012-01-01

    In the civil construction industry sector, it has been observed that the increasing use of machines has made tasks noisier and consequently caused hearing loss and had other adverse effects on workers. The objective of this study was to identify and assess the physical risks of noise present in activities undertaken in a construction company in order to propose control measures which will contribute to the management of health and safety within the company's organization. The methodology applied was based on verifying the characteristics of exposure to noise on construction sites, from an observation of sources which generated noise and making measurements of sound pressure levels emitted by these sources. The data was then analyzed and compared with the recommended performance levels established in control measures. As a result, it was found that some machines and equipment used in civil construction often generate noise above the acceptable levels and as such, in these cases, various control measures have been proposed. It is believed that the use of management techniques is the most effective way to assess risk and to implement the preventive and corrective actions proposed, and allows for the analysis of sound pressure levels on an ongoing basis.

  9. Chapter 10: Enclosure--Building enclosure design for cross-laminated timber construction

    Science.gov (United States)

    Samuel V. Glass; Jieying Wang; Steve Easley; Graham Finch

    2013-01-01

     Note: Clicking on the \\'View\\' option to download the PDF copy of the publication will redirect you to the web site www.masstimber.com where you will need to register prior to downloading.Cross-laminated timber #CLT# was developed in Europe for the prefabricated construction of wall, roof, and...

  10. Wood Products Other Building Materials Used in New Residential Construction in the United States

    Science.gov (United States)

    David B. McKeever; Joe Elling

    2015-01-01

    On average, new residential construction accounts for about one-third of all wood products consumed in the United States annually. During periods of robust housing activity, 45% or more of all wood products consumed are for new single-family and multifamily housing. This can fall to as low as 20% or less during times of economic recession. Unfortunately, 2012 was not...

  11. PROPOSAL FOR BUILD A TEST STAND TO THE STUDY WATER RAM BASED ON THE RECOMMENDATIONS CONSTRUCTION

    Directory of Open Access Journals (Sweden)

    Dariusz GRYGO

    2016-05-01

    Full Text Available The main aim of this article was developed of a test stand to a study physics phenomena accruing at work in a ram water based on the construction recommendations. The experience gained by a number of attempts allowed to the developed construction recommendations that allowed to adjust the test stand to perform various studies of physics phenomena occurring at the work of water ram and easy adaptions to the new requirements. The article includes: the review of the test stands on which performed the study in the history and in the present times, description of the construction recommendations of the universal test stand and the proposal of the test stand developed based on the construction recommendations. Motivation to take up this issue follows from the interest of devices that work in an unconventional way, devices used a renewable energy that can be used in household e.g. to improve their energy balance, delivery water to houses, drinking water for animals, fields irrigation, etc. Analysis of the literature of the water ram, test stands and their performance shown that it is small and typically old development in popular science form. In times of intensive search new sources of renewable energy reactivation of this type equipment may be highly probable.

  12. Review in formulating the standard form of contract for Industrialized Building System (IBS construction approach in Malaysia

    Directory of Open Access Journals (Sweden)

    Mohd Fateh Mohd Ashraf

    2017-01-01

    Full Text Available Industrialised Building System (IBS is the common term used to represent the prefabrication concept in Malaysia. Based on previous research being done locally and internationally, it is certain that using IBS offers huge benefits in terms of cost, time, productivity and quality. The Malaysian construction industry has been urged to use innovative construction techniques. It is being highlighted under the present Construction Industry Transformation Programme 2016 - 2020 (CITP. These initiatives illustrate the Malaysia government’s commitment in addressing the IBS agenda. Although some efforts have been taken to enhance the IBS adoption in Malaysia, various contract issues have emerged to become major concern amongst the IBS players that have led to delays, disputes, payment and cash flow issues in their projects. Formulating a dedicated standard form of contract for IBS construction approach is necessary to address the concerns. Therefore, the aim of the main research is to formulate the standard form of contract for IBS projects that will assist authorities and IBS industry players in mitigating the issues and challenges from the contractual perspectives. However, this paper will only present the literature reviews and findings from a preliminary survey conducted to establish pertinent contractual issues and challenges on the subject matter.

  13. Building Information Modelling (BIM) and Unmanned Aerial Vehicle (UAV) technologies in infrastructure construction project management and delay and disruption analysis

    Science.gov (United States)

    Vacanas, Yiannis; Themistocleous, Kyriacos; Agapiou, Athos; Hadjimitsis, Diofantos

    2015-06-01

    Time in infrastructure construction projects has always been a fundamental issue as early as from the inception of a project, during the construction process and often after the completion and delivery. In a typical construction contract time related matters such as the completion date and possible delays are among the most important issues that are dealt with by the contract provisions. In the event of delay there are usually provisions for extension of time award to the contractor with possible reimbursement for the extra cost and expenses caused by this extension of time to the contract duration. In the case the contractor is not entitled to extension of time, the owner will be possibly entitled to amounts as compensation for the time prohibited from using his development. Even in the event of completion within the time agreed, under certain circumstances a contractor may have claims for reimbursement for extra costs incurred due to induced acceleration measures he had to take in order to mitigate disruption effects caused to the progress of the works by the owner or his representatives. Depending on the size of the project and the agreement amount, these reimbursement sums may be extremely high. Therefore innovative methods with the exploitation of new technologies for effective project management for the avoidance of delays, delay analysis and mitigation measures are essential; moreover, methods for collecting efficiently information during the construction process so that disputes regarding time are avoided or resolved in a quick and fair manner are required. This paper explores the state of art for existing use of Building Information Modelling (BIM) and Unmanned Aerial Vehicles (UAV) technologies in the construction industry in general. Moreover the paper considers the prospect of using BIM technology in conjunction with the use of UAV technology for efficient and accurate as-built data collection and illustration of the works progress during an

  14. Excavation and aggregation as organizing factors in de novo construction by mound-building termites.

    Science.gov (United States)

    Green, Ben; Bardunias, Paul; Turner, J Scott; Nagpal, Radhika; Werfel, Justin

    2017-06-14

    Termites construct complex mounds that are orders of magnitude larger than any individual and fulfil a variety of functional roles. Yet the processes through which these mounds are built, and by which the insects organize their efforts, remain poorly understood. The traditional understanding focuses on stigmergy, a form of indirect communication in which actions that change the environment provide cues that influence future work. Termite construction has long been thought to be organized via a putative 'cement pheromone': a chemical added to deposited soil that stimulates further deposition in the same area, thus creating a positive feedback loop whereby coherent structures are built up. To investigate the detailed mechanisms and behaviours through which termites self-organize the early stages of mound construction, we tracked the motion and behaviour of major workers from two Macrotermes species in experimental arenas. Rather than a construction process focused on accumulation of depositions, as models based on cement pheromone would suggest, our results indicated that the primary organizing mechanisms were based on excavation. Digging activity was focused on a small number of excavation sites, which in turn provided templates for soil deposition. This behaviour was mediated by a mechanism of aggregation, with termites being more likely to join in the work at an excavation site as the number of termites presently working at that site increased. Statistical analyses showed that this aggregation mechanism was a response to active digging, distinct from and unrelated to putative chemical cues that stimulate deposition. Agent-based simulations quantitatively supported the interpretation that the early stage of de novo construction is primarily organized by excavation and aggregation activity rather than by stigmergic deposition. © 2017 The Author(s).

  15. Final Environmental Assessment for the construction and operation of an office building at the Stanford Linear Accelerator Center. Part 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-08-01

    The Department of Energy (DOE) has prepared an Environmental Assessment (EA), DOE/EA-1107, analyzing the environmental effects relating to the construction and operation of an office building at the Stanford Linear Accelerator Center (SLAC). SLAC is a national facility operated by Stanford University, California, under contract with DOE. The center is dedicated to research in elementary particle physics and in those fields that make use of its synchrotron facilities. The objective for the construction and operation of an office building is to provide adequate office space for existing SLAC Waste Management (WM) personnel, so as to centralize WM personnel and to make WM operations more efficient and effective. Based on the analyses in the EA, the DOE has determined that the proposed action does not constitute a major Federal action significantly affecting the quality of the human environment within the meaning of the National Environmental Policy Act of 1969 (NEPA). Therefore, the preparation of an Environmental Impact Statement is not required. This report contains the Environmental Assessment, as well as the Finding of No Significant Impact (FONSI).

  16. The effect of environmental regulation on firms' competitive performance: the case of the building & construction sector in some EU regions.

    Science.gov (United States)

    Testa, Francesco; Iraldo, Fabio; Frey, Marco

    2011-09-01

    There is a considerable debate on the effects of environmental regulation on competitive performance. Based on survey data, this paper analyzes the two main research questions, derived from literature, on the links between environmental regulation and competitiveness, by focusing on firms operating in the building and construction sector, i.e.: 1) whether environmental policy stringency affects the competitive performance of firms in the building and construction sector 2) and how a specific form of environmental regulation (direct regulation, economic instruments and soft instruments) affects this performance? By applying a regression analysis, we find that a more stringent environmental regulation, measured by inspection frequency, provides a positive impulse for increasing investments in advanced technological equipment and innovative products and on business performance. Moreover, a well-designed "direct regulation" appears to be the most effective policy instrument for prompting the positive impact of environmental policies on innovation and intangible performance while economic instruments do negatively affect business performance. Copyright © 2011 Elsevier Ltd. All rights reserved.

  17. Efficient energy use and solar building construction; Rationelle Energieverwendung und Solares Bauen

    Energy Technology Data Exchange (ETDEWEB)

    Ebert, H.P. [Bayerisches Zentrum fuer Angewandte Energieforschung e.V., Wuerzburg (Germany)

    2007-06-15

    Houses for the 21st century must be optimised in terms of energy saving and, particularly in our latitudes, thermal insulation in the winter. These requirements can be met using innovative heat insulation systems and heat storage components. Recent developments for opaque insulation include super-insulating vacuum insulation panels, while for transparent applications there is ongoing development work on vacuum glazing. Ensuring a high solar input during the cold season and efficient protection against overheating in the warm season falls within the scope of architectural design. It can be facilitated by the use of building components made of micro or macro-integrated latent heat storage materials.

  18. A bisindolylmaleimide-naphthalimide building block for the construction of the energy transfer cassette.

    Science.gov (United States)

    Li, Xiaochuan; Shi, Ruijuan; Jin, Yingchun; Lou, Yan; Ge, Qingshan; Li, Mengmeng; Kim, Hyungjoo; Son, Young-A

    2014-10-01

    Double build-in chromophores with naphthalimide and bisindolylmaleimide incorporating to one molecule were synthesized efficiently and characterized fully. Its spectral properties were investigated. Effective intramolecular energy transfer together with the strong emission in solution and solid state were discussed in terms of its electronic structures. Optimized structure and frontier molecular orbital were calculated based on D3(mol) platform. Obviously electron delocalization before and after excitation was observed according to the molecular orbital calculation, which corresponds to the mechanism of excitation energy transfer through space occurred in the donor-linker-acceptor molecular system. The opto-physical properties of the dye indicated potential application of electro-optical materials.

  19. Possibilities of Use of UAVS for Technical Inspection of Buildings and Constructions

    Science.gov (United States)

    Banaszek, Anna; Banaszek, Sebastian; Cellmer, Anna

    2017-12-01

    In recent years, Unmanned Aerial Vehicles (UAVs) have been used in various sectors of the economy. This is due to the development of new technologies for acquiring and processing geospatial data. The paper presents the results of experiments using UAV, equipped with a high resolution digital camera, for a visual assessment of the technical condition of the building roof and for the inventory of energy infrastructure and its surroundings. The usefulness of digital images obtained from the UAV deck is presented in concrete examples. The use of UAV offers new opportunities in the area of technical inspection due to the detail and accuracy of the data, low operating costs and fast data acquisition.

  20. N-Propargylamines: versatile building blocks in the construction of thiazole cores

    Directory of Open Access Journals (Sweden)

    S. Arshadi

    2017-03-01

    Full Text Available Thiazoles and their hydrogenated analogues are not only key structural units in a wide variety of natural products but they also constitute important building blocks in medicinal chemistry. Therefore, the synthesis of these compounds using new protocols is always interesting. It is well known that N-propargylamines can undergo a number of cyclization reactions to produce various nitrogen-containing heterocycles. In this review, we highlight the most important developments on the synthesis of thiazole and its derivatives starting from N-propargylamines. This review will be helpful in the development of improved methods for the synthesis of natural and biologically important compounds.

  1. An aspect of building tunels in frame of the construction of the highway system in Slovakia

    Directory of Open Access Journals (Sweden)

    Jozef Čížik

    2005-12-01

    Full Text Available The article describes an procedure of elaborating of study on the construction of the tunnels located in the highway system in Slovakia. Tunnel structures in Slovakia were designed, approved and implemented step by step in the course of several previous years (Ratkovský, 2005. The total length of one section tunnel tube amounts to 41 km. The exploratory drift is indispensable for the elaboration of safe and economically acceptable design of tunnel tubes to be built in the future. This applies in a full extent to the solution of tunnels in Slovakia. According to the design, the excavation will be carried out using a New Austrian Tunnelling Method (NATM. Also, some tunnels will be carried out using the cut-and-cover method and TBM. Any newly designed trafic-related construction has to meet requirements for the carrying capacity with conditions of state operation maintained.

  2. Construction of a new waste-water treatment plant, building 676, route Maxwell

    CERN Multimedia

    TS Department

    2008-01-01

    A new waste-water treatment plant is being constructed on Route Maxwell to treat the effluents from the TS/MME/CCS surface treatment workshops. For this purpose, excavation work is being performed in two separate locations along Route Maxwell, causing a slight disruption to traffic in these areas. Site access through Gate C should, however, be maintained. The work is scheduled to continue until February 2009.

  3. Construction of a new wastewater treatment plant, building 676, route Maxwell

    CERN Document Server

    SC Unit

    2008-01-01

    A new wastewater treatment plant is being constructed on Route Maxwell to treat the effluents from the TS/MME/CCS surface treatment workshops. For this purpose, excavation work is being performed in two separate locations along Route Maxwell, causing a slight disruption to traffic in these areas. Site access through Gate C should, however, be maintained. The work is scheduled to continue through until February 2009.

  4. Mix design and mechanical performance of geopolymer binder for sustainable construction and building material

    Science.gov (United States)

    Saeli, Manfredi; Novais, Rui M.; Seabra, Maria Paula; Labrincha, João A.

    2017-11-01

    Sustainability in construction is a major concern worldwide, due to the huge volume of materials and energy consumed by this sector. Associated supplementing industries (e.g. Portland cement production) constitute a significant source of CO2 emissions and global warming. Valorisation and reuse of industrial wastes and by-products make geopolymers a solid and sustainable via to be followed as a valid alternative to Portland cement. In this work the mix design of a green fly ash-based geopolymer is evaluated as an environmentally friendly construction material. In the pursuit of sustainability, wastes from a regional kraft pulp industry are exploited for the material processing. Furthermore, a simple, reproducible, and low-cost manufacture is used. The mix design is hence optimised in order to improve the desirable mechanical performance of the material intended for structural applications in construction. Tests indicate that geopolymers may efficiently substitute the ordinary Portland cement as a mortar/concrete binder. Furthermore, valorisation and reuse of wastes in geopolymers is a suboptimal way of gaining financial surplus for the involved industrial players, while contributes for the implementation of a desirable circular economy.

  5. Horizontal environmental assessment of building products in relation to the construction products directive (CPD).

    Science.gov (United States)

    Schiopu, Nicoleta; Jayr, Emmanuel; Méhu, Jacques; Barna, Ligia; Moszkowicz, Pierre

    2007-01-01

    According to the European Construction Products Directive (89/106/EC), construction products must satisfy specified essential requirements (ER). To comply with ER 3, on hygiene, health and environment, the construction works must be designed and built in such a way that they will not be a threat to the hygiene and health of the occupants and neighbours, nor to the environment. Standardised test methods for the release of substances that are hazardous to health and environment need to be developed at the European level. A horizontal approach is considered the best route for such test development and consists of the development of a test method applicable for different products used in a certain scenario (across the fields of different Technical Committees). The work presented here regards the emission of pollutants towards soil and water and has been carried out on monolith products, based on three types of matrices: concrete, wood and metal (zinc). The aim of the work is to study the parameters (nature of leachant, temperature, liquid-to-solid ratio) that could influence the release behaviour of substances in water. The knowledge acquired from these tests will allow the identification of some parameters needed for the development of a horizontal test.

  6. Influence of construction and demolition waste management on the environmental impact of buildings.

    Science.gov (United States)

    Coelho, André; de Brito, Jorge

    2012-03-01

    The purpose of this study is to quantify comparable environmental impacts within a Life Cycle Analysis (LCA) perspective, for buildings in which the first (Materials) and last (End of Life) life cycle stages are adjusted to several waste/material management options. Unlike most LCAs, the approach is "top-down" rather than "bottom-up", which usually involves large amounts of data and the use of specific software applications. This approach is considered appropriate for a limited but expedient LCA designed to compare the environmental impacts of different life cycle options. Present results, based on real buildings measurements and demolition contractor activities, show that shallow, superficial, selective demolition may not result in reduced environmental impacts. Calculations actually show an increase (generally less than 5%) in most impact categories for the Materials and End of Life stages because of extra transportation needs. However, core material separation in demolition operations and its recycling and/or reuse does bring environmental benefits. A reduction of around 77% has been estimated in the climate change impact category, 57% in acidification potential and 81% in the summer smog impact (for the life cycle stages referred). Copyright © 2011 Elsevier Ltd. All rights reserved.

  7. Nonstationary heat and mass transfer in the multilayer building construction with ventilation channels

    Science.gov (United States)

    Kharkov, N. S.

    2017-11-01

    Results of numerical modeling of the coupled nonstationary heat and mass transfer problem under conditions of a convective flow in facade system of a three-layer concrete panel for two different constructions (with ventilation channels and without) are presented. The positive effect of ventilation channels on the energy and humidity regime over a period of 12 months is shown. Used new method of replacement a solid zone (requiring specification of porosity and material structure, what complicates process of convergence of the solution) on quasi-solid in form of a multicomponent mixture (with restrictions on convection and mass fractions).

  8. Building a Bohemian Boom Town: The Construction of a 'Creative Class' in Asheville, North Carolina

    Directory of Open Access Journals (Sweden)

    Mary LaRue Scherer

    2007-10-01

    Full Text Available Asheville North Carolina is currently on the radar for developers, tourists, young couples and retirees looking for the perfect place to relocate. As a result of the development, sleek new buildings are popping up downtown and sidewalks are expanding to accommodate outdoor cafes and more and more visitors. This is occurring in a non-industrial city dependent on hype to attract newcomers with significant money. An examination of how this is happening is presented along with interviews of significant players in Asheville's development patterns to show how people pretty much tend to buy into the marketing of their hometown by the development community using the concept of the economy of the mind. The case-study approach is used.

  9. The tandem Claisen rearrangement in the construction of building blocks for supramolecular chemistry.

    Science.gov (United States)

    Hiratani, Kazuhisa; Albrecht, Markus

    2008-11-01

    The tandem Claisen rearrangement is a simple but highly efficient reaction to synthesize useful building blocks for supramolecular chemistry. It provides in one step two new C-C bonds in very high yield. The scope and limits of this reaction will be discussed in this review and it will be shown, how macrocyclic compounds as well as rotaxanes or helicates can be formed by use of butenylidene bridged aromatic compounds obtained after the rearrangement reaction. Special aspects will cover the search for new receptors and sensors or for energy transfer properties. The contents of this tutorial review are within the field of preparative organic synthesis but in addition cover aspects of inorganic and supramolecular chemistry.

  10. THE EVOLUTION OF THE DESIGN AND CONSTRUCTION OF MASONRY BUILDINGS IN THE UK

    Directory of Open Access Journals (Sweden)

    Barry Haseltine

    2012-12-01

    Full Text Available The paper gives a brief history of the use of masonry, mainly clay brickwork and stonework, for historic buildings in the UK. The development of a modern Code of Practice is described, leading to BS 5628: Parts 1 (1978, 2 (1985 and 3 (1985. The development and use of reinforced masonry is covered, as is the need for sensible rules to ensure that correct materials and workmanship are used. The development of new materials and methods is mentioned. The result of the European Union succeeding in changing National European Codes of Practice into Eurocodes has made a profound difference for designers and the Eurocodes are described. Finally the future use of masonry in the UK is discussed.

  11. Mastering the political Process of Building Innovation Networks - A Case from the Danish Construction Industry

    DEFF Research Database (Denmark)

    Stissing Jensen, Jens; Koch, Christian; Thomassen, Mikkel

    2008-01-01

    Drawing on network of innovation and organizational politics perspectives this paper analyzes the role of an innovation broker organization in developing and supporting an inter-organizational innovation process in the Danish construction industry. The aim is to implement an ICT-based product...... synchronization. These minimal structures were both conceptual and processual. In the development phase these structures facilitated a processes of experimentation in which the utilization of the configurator were utilized to organize the development of several aspects and activities such as branding, product...... configuration tool to support the production, sale, and installation of balconies. It is suggested that the innovation broker was successful in stabilizing the innovation process by supplying minimal structures which provided a template which facilitated a combination of individual flexibility and overall...

  12. SELF-CONSOLIDATING CONCRETE USED IN THE MONOLITHIC CONSTRUCTION OF EARTHQUAKE-RESISTANT TALL BUILDING

    Directory of Open Access Journals (Sweden)

    S. A. Aliev

    2016-01-01

    Full Text Available Objectives. The development of high-strength concrete based on experience both with domestic and foreign concretes has led to the production of a self-consolidating concrete (SCC formula. Method. Raw materials sourced from the Chechen Republic were used in the SUBconcrete formula, based on materials having different classes of compressive strength as well as the incorporation of polycarboxylate as an additive. Results. An investigation was carried out on natural and technogenic raw materials from the Chechen Republic and other regions of the country. Compositions of high-grade SCC with a compressive strength of B100 and higher are achieved with an integrated approach using both natural and man-made raw materials. The formulae of the basic concrete reinforcing technology are examined together with their physico-mechanical properties. The results of the study of locally sourced concrete, as well as that purchased from "Pavlovskgranit" and OOO "Progress" for testing from the Republic of North Ossetia–Alania, are provided. Of the various manufacturers' cements investigated, the highest quality Portland cement CEM I 4.5N was selected from the Tula cement manufacturers in the town of Chiri-Yurt. The fillers used were microsilica sourced from the Novokuznetsk plant, inactivated MP-1 mineral powder produced in Kaluga and fly ash sourced from Nevinnomyssk. Conclusion. The results of the studies show that the raw material potential of our country allows for the production of self-consolidating concrete from class B 25 to B100 and higher for use in monolithic construction, including high-rise. The concrete compositions arrived at are characterised by their high physical and mechanical properties and can be used in high-rise concrete construction sites operating in earthquake-prone areas. 

  13. ON PROBLEM IN DEVELOPMENT OF HOUSE BUILDING CONSTRUCTION WITH MINIMUM POWER RESOURCES CONSUMPTION

    Directory of Open Access Journals (Sweden)

    B. M. Khroustalev

    2014-01-01

    Full Text Available The paper presents an analysis of several variants of energy-efficient solutions for hot water supply systems in Minsk buildings that ensure significant reduction of energy for hot water supply in comparison with the existing level. The different systems have been considered as technical facilities for usage of solar energy and secondary heat sources and which are based on heat recovery of “grey” waste water, solar collector, photoelectric transducer, heat pump.Comparative analysis of the considered variants shows economic efficiency of waste water heat utilizers. An advantage of such system is in its all-year round usage in comparison with a solar collector. The second variant that is a combination of waste water heat utilizer and a solar collector that increases energy saving but it requires the increase of capital expenses. The third variant completely covers expenses of heat energy which is necessary for hot water supply. It is neces-sary to attract attention to the fact that expenses in the first two variants are close to the required ones but values of the third variant may significantly exceed the reliable level.The paper contains analytical material of Belarusian and Vietnamese researchers who were actively involved in implementation of the joint Belarusian-Vietnamese project “Usage of Renewable Power Sources in Physical-Mathematical Model of Heat Regime of Energy-Efficient House” (Project code: VAST. HTQT. Belarus. 03/2012–2013. 

  14. Post-Tensioned Concrete Long-Span Slabs in Projects of Modern Building Construction

    Science.gov (United States)

    Szydlowski, Rafal; Labuzek, Barbara

    2017-10-01

    Nowadays, design of modern an architectural building structures requires the use of slender and free from numerous supports slabs. The most suitable solution for above requirements are the post-tensioned slabs with unbounded tendons. Slabs prestressed by unbounded tendons are successfully used worldwide for several decades. During that time many recommendations dealing with the forming of geometry and prestressing, dimensioning and erection technology were issued. During the recent years prestressed slabs characterized by span and slenderness substantially exceeding recommended limitations were designed and erected with success in Poland. During the slabs erection and in two years of their using, the deflection of three oversized slabs were monitoring. In spite of designed the slabs significantly larger and slenderer than the recommended maximum value of span and span to depth ratio, the deflection of the slabs is definitely far from the limit value. The paper shows the geometry, characteristic and deflection of erected slabs and conclusion. Description of a very large span slab (21.3m), that was designed regarded to the information obtained from the previous realisation, is presented in this paper.

  15. Building America Case Study: Construction Guidelines for High R-Value Walls without Exterior Rigid Insulation, Cold Climate Region

    Energy Technology Data Exchange (ETDEWEB)

    2017-01-01

    High-R wall assemblies (R-40 and above) are gaining popularity in the market due to programs like the DOE's Zero Energy Ready Home program, Passive House (PH), Net Zero Energy Home (NZEH) challenges in several states, and highly incentivized retrofit programs. In response to this demand, several builders have successfully used 'double wall' systems to more practically achieve higher R-values in thicker, framed walls. To builders of conventional stick-framed homes, often one of the most appealing features of double wall systems is that there are very few new exterior details. Exterior sheathing, structural bracing, house wrap or building paper, window and door flashing, and siding attachment are usually identical to good details in conventional framed wall systems. The information presented in this guide is intended to reduce the risk of failure in these types of assemblies, increase durability, and result in a reduction of material brought to landfills due to failures and resulting decay. While this document focuses on double wall framing techniques, the majority of the information on how to properly construct and finish high R-value assemblies is applicable to all wall assemblies that do not have foam insulation installed on the exterior of the structural sheathing. The techniques presented have been shown through field studies to reduce the likelihood of mold growth and moisture related damage and are intended for builders, framing contractors, architects, and consultants involved in designing and building super insulated homes.

  16. Analysis of the Key and Difficult Points in the Engineering Construction Technology of the Steel Structures of a Super High-rise Building

    Science.gov (United States)

    Dou, Lijun; Li, Hengxu

    2017-07-01

    In recent years, with the rapid development of the economy of China, the traditional building structure has not been able to meet the current people’s demands and the super high-rise building has become a symbol of a city. In the current period, the research on the super high-rise building in the architectural industry of China is late and the technical blanks exist in some construction difficulties in the super high-rise steel structures. Based on the above, a brief analysis and discussion on the difficult construction technology in the steel structures of a super high-rise building and some measures are presented for reference of the relevant personnel in this paper.

  17. Urban non-engineered buildings in Mérida, Venezuela. Seismic performance and proposals for retrofit and for new construction

    Directory of Open Access Journals (Sweden)

    López-Almansa, F.

    2015-03-01

    Full Text Available The seismic risk for an informal settlement in Mérida (“La Milagrosa” is qualitatively assessed and retrofit strategies are proposed. The buildings in the settlement are thoroughly examined and four prototype buildings are chosen to represent the vast majority of houses in “La Milagrosa”. The structural behavior of these buildings under gravity loads and seismic actions is deeply analyzed; this study shows that the prototype buildings are unsafe for gravity loads, and that the seismic demands largely exceed their capacity. Based on these conclusions, feasible retrofit strategies are proposed, together with draft recommendations for new similar constructions. Earlier quantitative estimative appraisals show that the proposed seismic strengthening measures can be very effective in reducing fatalities and economical losses, and are significantly more cost-efficient than reconstruction-based approaches. These conclusions might be generalized to many non-engineered urban areas in earthquake-prone regions of the developing world.Se evalúa cualitativamente el riesgo sísmico para un asentamiento informal en Mérida («La Milagrosa» y se proponen estrategias de rehabilitación sísmica. Se eligen cuatro edificios prototipo que representan a la gran mayoría de los de «La Milagrosa». El comportamiento estructural de estos edificios se analiza en profundidad y se concluye que los edificios no son seguros para cargas gravitatorias, y que las solicitaciones sísmicas son muy superiores a su capacidad. A partir de estas conclusiones, se proponen estrategias de rehabilitación sísmica, junto con recomendaciones de proyecto para nuevas construcciones de características similares. Evaluaciones cuantitativas estimativas previas muestran que las medidas propuestas de fortalecimiento sísmico pueden ser muy eficaces en la reducción de muertes y de pérdidas económicas; siendo significativamente más rentables que los planteamientos basados en la

  18. Leveraging effects of triple bottom lines business model on the building and construction small and medium-sized enterprises’ market performance

    Directory of Open Access Journals (Sweden)

    Boniface Okanga

    2017-01-01

    Full Text Available Orientation: Embracement of triple bottom line reporting as a driver of a firm’s sustainability is a paradox puzzling most contemporary business executives.Research purpose: The purpose of this research is to examine how effective alignment of the triple bottom line business model with building and construction operational activities leverages effective market performance of the small and medium-sized enterprises (SMEs in the building and construction industry, so as to identify major paradoxes and the remedial business model that can be suggested.Research design, approach and method: The study uses interpretivist research paradigm and exploratory qualitative research method to explore the opinions and perceptions of 30 judgementally drawn participants comprising managers and supervisors from 30 building and construction SMEs in Gauteng and KwaZulu-Natal provinces. Thematic analysis was used in the evaluation and interpretation of the interview data collected using a semi-structured interview guide.Main findings: A seemingly greater preponderance to pursue profitability at the expense of people and planet bottom lines was found to be common among most of the SMEs during the initial stages of their establishments and growth because of the need to attain the usually essential initial financial sustainability. Even though on attaining financial sustainability, some of the SMEs strive to achieve all the three bottom lines, most of the undertaken initiatives are often only aimed at improving compliance with relevant building and construction legislations.Managerial implications: The study suggests a modified triple bottom line business model that the SMEs in the building and construction industry can replicate to effectively apply triple bottom line reporting as an edifier for effective market performance.Contributions: The study offers a new theory for measuring the leveraging effects of the triple bottom line business model on the building and

  19. Analysis of technical-economic requirements for the construction of a solar power plant on the roof of the business building of the Electrical Engineering Institute 'Nikola Tesla'

    OpenAIRE

    Grbić, Maja; Antić, Radoslav; Ponoćko, Jelena; Mikulović, Jovan; Đurišić, Željko

    2014-01-01

    This paper presents an analysis of the technical-economic requirements for the construction of a solar power plant on the roof of the business building of the Electrical Engineering Institute 'Nikola Tesla' in Belgrade. Calculation of solar irradiation is performed and the conceptual design of the disposition of solar panels on the roof of the building is shown as well as their connections to the inverters. Conditions for connecting the plant to the distribution network are checked and an eco...

  20. Application of Technical Measures and Software in Constructing Photorealistic 3D Models of Historical Building Using Ground-Based and Aerial (UAV Digital Images

    Directory of Open Access Journals (Sweden)

    Zarnowski Aleksander

    2015-12-01

    Full Text Available Preparing digital documentation of historical buildings is a form of protecting cultural heritage. Recently there have been several intensive studies using non-metric digital images to construct realistic 3D models of historical buildings. Increasingly often, non-metric digital images are obtained with unmanned aerial vehicles (UAV. Technologies and methods of UAV flights are quite different from traditional photogrammetric approaches. The lack of technical guidelines for using drones inhibits the process of implementing new methods of data acquisition.

  1. EXPERIENCE IN APPLICATION OF THE TECHNOLOGIES OF BUILDING INFORMATION MODELING WHEN CONSTRUCTING THE OLYMPIC OBJECTS OF SOCHI-2014 AND STADIUMS OF THE FIFA WORLD CUP 2018

    Directory of Open Access Journals (Sweden)

    Shakhraman'yan Andrey Mikhaylovich

    2016-06-01

    Full Text Available The authors describe the experience in application of information modeling technologies for buildings and structures on the example of design and construction of the objects SOCHI-2014 and stadiums of FIFA World Cup 2017. According to the regulatory documents in 2014 in Sochi the automated monitoring systems of the strain state of bearing structures and engineering systems were in-stalled in all the Olympic ice stadiums and in the Central Olympic Stadium. The systems were controlled by software package SODIS Building. The main possibilities of SODIS Building are enumerated in the article.

  2. Construction work

    CERN Multimedia

    2004-01-01

    Construction work on building 179 will start on the 16th February 2004 and continue until November 2004. The road between buildings 179 and 158 will temporarily become a one way street from Route Democrite towards building 7. The parking places between buildings 179 and 7 will become obsolete. The ISOLDE collaboration would like to apologize for any inconveniences.

  3. A Real-Time Energy Consumption Simulation and Comparison of Buildings in Different Construction Years in the Olympic Central Area in Beijing

    Directory of Open Access Journals (Sweden)

    Chen Xu

    2017-12-01

    Full Text Available Energy consumed the in urban sector accounts for a large proportion of total world delivered energy consumption. Residential building energy consumption is an important part of urban energy consumption. However, there are few studies focused on this issue and that have simulated the energy consumption of residential buildings using questionnaire data. In this research, an eQUEST study was conducted for different residential buildings in the Olympic Central Area in Beijing. Real-time meteorological observation data and an actual energy consumption schedule generated by questionnaire data were used to improve the eQUEST model in the absence of actual energy consumption data. The simulated total energy consumption of residential buildings in the case area in 2015 is 21,262.28 tce, and the average annual energy consumption per unit area is 20.09 kgce/(m2·a. Space heating accounted for 45% of the total energy consumption as the highest proportion, and the second highest was household appliances, which accounted for 20%. The results showed that old residential buildings, multi-storey buildings and large-sized apartment buildings consume more energy. The internal units, building height, per capita construction area, the number of occupants and length of power use had significant impact on residential energy consumption. The result of this study will provide practical reference for energy saving reconstruction of residential buildings in Beijing.

  4. Evaluation of Policy Implementation at Norm Strategy Criteria Procedure Safety Management System that Influence the Safety Culture in Building Construction, Housing, Waterworks, Road and Bridge Project in Indonesia

    OpenAIRE

    Yusuf Latief; Rossy Armyn Machfudiyanto; Brain Harryanto; Cahyadi Santoso

    2017-01-01

    Unideal Safety culture in Indonesia requires an evaluation of policy implementation refers to the construction safety regulation, Ministry Regulation 05/PRT/2014. Out of Norms, Standards, Procedures and Criteria (NSPK), we only have Norms and Procedure. As for Standard and Criteria are still being planned. This research on building, housing, water resource, roads and bridges construction at the Ministry of General Works and Housing resulted in having significant relation between safety policy...

  5. Building America

    Energy Technology Data Exchange (ETDEWEB)

    Brad Oberg

    2010-12-31

    IBACOS researched the constructability and viability issues of using high performance windows as one component of a larger approach to building houses that achieve the Building America 70% energy savings target.

  6. of buildings and Constructions

    Directory of Open Access Journals (Sweden)

    Shirokov Alexey Igorevich

    2012-09-01

    Full Text Available In this article the author examines the influence of wear on the ONS to the quality and investment attractiveness, and gives recommendations on how to estimate the accumulated depreciation. A formula for calculating the market value of the ONS taking into account accumulated depreciation.

  7. Insulating correctly. Manual for up-to-date construction in existing buildings; Richtig daemmen. Handbuch fuer zeitgemaesses Bauen im Bestand

    Energy Technology Data Exchange (ETDEWEB)

    Gaenssmantel, Juergen; Geburtig, Gerd

    2008-07-01

    The authors show clearly what have to be taken into account during modernization or retrofitting of an existing building or during new construction an optimal planning according to energetic points of view. Content: selection of a suitable insulation materials; airtightness and thermography; overview on insulating materials; selection of manufacturers and correct contracts; ventilation by heat recovery. (GL) [German] Die beiden Autoren zeigen auf, welche Beobachtungen und Ueberlegungen anzustellen sind, bevor ein Daemmstoff in die Hand genommen wird. Das Buch hilft dem Praktiker die verschiedenen Gegebenheiten, Anforderungen und Materialien zu beurteilen. Dazu werden auch grundlegende bauphysikalische Kenntnisse vermittelt, wie sie heute fuer jeden auf einer Baustelle verantwortlich Taetigen unerlaesslich sind. Diskutiert werden neben den Moeglichkeiten auch die Grenzen des Daemmens. Die zahlreiche Uebersichten und Checklisten erhoehen den praktischen Nutzen dieses Buches. Bei konkreten Bauvorhaben helfen sie, aus dem Buendel von Anforderungen, Gebaeudedaten und Beobachtungen zu einem Urteil zu kommen. Das Buch bietet Entscheidungshilfen und Antworten zu den Fragen: - Wo lohnt es sich nachtraeglich zu daemmen? - Wie waehlt man den geeigneten Daemmstoff aus? - Welche Checklisten kann man bei der Auswahl anwenden? - Warum haben auch energetische Nachruestungen ihre Grenzen? - Weshalb muessen bauphysikalische 'Spielregeln' beachtet werden? Ein umfangreicher Adressteil mit den Angaben zu den Herstellern von Waermedaemm-Verbundsystemen, Daemmputzen und Daemmstoffen ergaenzt das Werk. Das Buch wendet sich in erster Linie an die Fachunternehmer und Handwerker, die im Bereich des Bauens im Bestand taetig sind, darueber hinaus auch an Energieberater und Planer. (orig.)

  8. Process and system innovation in the building and construction industry: Developing a model for integrated value chain and life cycle management of built objects

    NARCIS (Netherlands)

    Ridder, H.A.J. de; Vrijhoef, R.

    2004-01-01

    The building and construction industry has a large contribution and impact on society, e.g. economical and environmental, involving a vast spectrum of stakeholders. However, the value delivering performance of the industry has often been criticized. The predictability of the value, price and costs

  9. Building indeterminacy modelling – the ‘ZCB Bamboo Pavilion’ as a case study on nonstandard construction from natural materials

    National Research Council Canada - National Science Library

    Crolla, Kristof

    2017-01-01

    If unprocessed natural materials are the most environmentally friendly construction materials available, how do we develop and communicate design model and construction information that allows dealing...

  10. A Comparative Cradle-to-Gate Life Cycle Assessment of Mid-Rise Office Building Construction Alternatives: Laminated Timber or Reinforced Concrete

    Directory of Open Access Journals (Sweden)

    Raymond J. Cole

    2012-07-01

    Full Text Available The objective of this project was to quantify and compare the environmental impacts associated with alternative designs for a typical North American mid-rise office building. Two scenarios were considered; a traditional cast-in-place, reinforced concrete frame and a laminated timber hybrid design, which utilized engineered wood products (cross-laminated timber (CLT and glulam. The boundary of the quantitative analysis was cradle-to-construction site gate and encompassed the structural support system and the building enclosure. Floor plans, elevations, material quantities, and structural loads associated with a five-storey concrete-framed building design were obtained from issued-for-construction drawings. A functionally equivalent, laminated timber hybrid design was conceived, based on Canadian Building Code requirements. Design values for locally produced CLT panels were established from in-house material testing. Primary data collected from a pilot-scale manufacturing facility was used to develop the life cycle inventory for CLT, whereas secondary sources were referenced for other construction materials. The TRACI characterization methodology was employed to translate inventory flows into impact indicators. The results indicated that the laminated timber building design offered a lower environmental impact in 10 of 11 assessment categories. The cradle-to-gate process energy was found to be nearly identical in both design scenarios (3.5 GJ/m2, whereas the cumulative embodied energy (feedstock plus process of construction materials was estimated to be 8.2 and 4.6 GJ/m2 for the timber and concrete designs, respectively; which indicated an increased availability of readily accessible potential energy stored within the building materials of the timber alternative.

  11. Net-zero building

    CSIR Research Space (South Africa)

    Van Wyk, Llewellyn V

    2013-01-01

    Full Text Available of interventions where innovative technologies could realise substantial building performance improvements. A central challenge to construction and building performance is located in the practice of constructing a building on the project site using a combination...

  12. Development of Hybrid Model for Estimating Construction Waste for Multifamily Residential Buildings Using Artificial Neural Networks and Ant Colony Optimization

    OpenAIRE

    Dongoun Lee; Seungho Kim; Sangyong Kim

    2016-01-01

    Due to the increasing costs of construction waste disposal, an accurate estimation of the amount of construction waste is a key factor in a project’s success. Korea has been burdened by increasing construction waste as a consequence of the growing number of construction projects and a lack of construction waste management (CWM) strategies. One of the problems associated with predicting the amount of waste is that there are no suitable estimation strategies currently available. Therefore, we d...

  13. Area balance method for calculation of air interchange in fire-resesistance testing laboratory for building products and constructions

    Directory of Open Access Journals (Sweden)

    Sargsyan Samvel Volodyaevich

    2014-09-01

    Full Text Available Fire-resistance testing laboratory for building products and constructions is a production room with a substantial excess heat (over 23 W/m . Significant sources of heat inside the aforementioned laboratory are firing furnace, designed to simulate high temperature effects on structures and products of various types in case of fire development. The excess heat production in the laboratory during the tests is due to firing furnaces. The laboratory room is considered as an object consisting of two control volumes (CV, in each of which there may be air intake and air removal, pollutant absorption or emission. In modeling air exchange conditions the following processes are being considered: the processes connected with air movement in the laboratory room: the jet stream in a confined space, distribution of air parameters, air motion and impurity diffusion in the ventilated room. General upward ventilation seems to be the most rational due to impossibility of using local exhaust ventilation. It is connected with the peculiarities of technological processes in the laboratory. Air jets spouted through large-perforated surface mounted at the height of 2 m from the floor level, "flood" the lower control volume, entrained by natural convective currents from heat sources upward and removed from the upper area. In order to take advantage of the proposed method of the required air exchange calculation, you must enter additional conditions, taking into account the provision of sanitary-hygienic characteristics of the current at the entrance of the service (work area. Exhaust air containing pollutants (combustion products, is expelled into the atmosphere by vertical jet discharge. Dividing ventilated rooms into two control volumes allows describing the research process in a ventilated room more accurately and finding the air exchange in the lab room during the tests on a more reasonable basis, allowing to provide safe working conditions for the staff without

  14. Present state and future prospects in structural design and construction of high rise buildings; Chokoso kenchiku ni okeru sekkei seko gijutsu no genjo to sono shorai tenbo

    Energy Technology Data Exchange (ETDEWEB)

    Yamazaki, S. [Mitsubishi Estate Co. Ltd., Tokyo (Japan)

    1994-12-05

    This paper reports the current state of design and construction of super high rise buildings quoting the case of Yokohama Landmark Tower as a central example, and describes the future prospects. Trends of load and stress in a super high rise building is such that the ratio of stress due to force in the axial direction occupying in the stress will increase with increasing height as can be understood if rectangular columns with different heights are compared. Axial force in a pillar acting against an earthquake may increase, but bending, shearing and beam stresses will remain unchanged. In buildings with heights of 250 to 300 meters, wind load stress can grow equivalent to or larger than an earthquake load stress. Designs standing on different concepts are required because of difference in the cycle and acting time of both stresses. At Yokohama Landmark Tower, many of the main frameworks were determined from the wind load, whereas 60-kg steels were used and the construction was carried out under elaborate controls. Since diversification of building shapes and ultra super high-rise construction are anticipated to be advanced in the future, expectations are focused on development of better high-strength steels, and automation and systematization in welding processes. 8 refs., 10 figs., 3 tabs.

  15. Low enthalpy geothermal energy: borehole heat exchangers (BHE. Geological and geothermal supervision during active construction in support of the energy certification of buildings - ESBE certification plan

    Directory of Open Access Journals (Sweden)

    Lorenzo Cadrobbi

    2012-12-01

    Full Text Available This article draws on the experience matured while working with low-enthalpy geothermic installations both in the design and executive phase as well as ongoing monitoring, within the scope of energy conservation as it relates to building and construction. The goal is to illustrate the feasibility of adopting the ESBE certification protocol (Certification of Energy Efficient Low-Enthalpy Probes aimed at optimizing the harnessing of local geothermic resources to satisfy the energy requirements of a building, measured against the initial investment. It is often the case, in fact, that during the course of a construction project for a given low-enthalpy installation, we verify incompa tibilities with the local geologic and geothermic models, which, if inadequate during construction, can compromise the proper functioning of the installation and its subsequent operation. To this end, the ESBE method, which adheres to the governing environmental regulations, and which takes its cue from technical statutes within the sector, permits us to validate via verification, simulations and tests, the geothermic field probes used in construction in an objective and standardized manner, thereby joining and supporting the most recent protocols for energy certification of buildings (LEED 2010, CASACLIMA 2011, UE 20120/31 Directive. ESBE certification operates through a dedicated Certifying Entity represented by the REET unit (Renewable Energies and Environmental Technologies of FBK (Bruno Kessler Foundation of Trento. The results obtained by applying the ESBE method to two concrete cases, relative to two complex geothermic systems, demonstrate how this protocol is able to guarantee, beyond the correct execution in the field of geothermic probes, an effective coverage of the energy requirements of the building during construction adopting the best optimization measures for the probes in keeping with the local geological and geothermic model.

  16. Analysis of technical-economic requirements for the construction of a solar power plant on the roof of the business building of the Electrical Engineering Institute 'Nikola Tesla'

    Directory of Open Access Journals (Sweden)

    Grbić Maja

    2014-01-01

    Full Text Available This paper presents an analysis of the technical-economic requirements for the construction of a solar power plant on the roof of the business building of the Electrical Engineering Institute 'Nikola Tesla' in Belgrade. Calculation of solar irradiation is performed and the conceptual design of the disposition of solar panels on the roof of the building is shown as well as their connections to the inverters. Conditions for connecting the plant to the distribution network are checked and an economic analysis of the project is performed.

  17. IBS SURVEY 2010: DRIVERS, BARRIERS AND CRITICAL SUCCESS FACTORS IN ADOPTING INDUSTRIALISED BUILDING SYSTEM (IBS CONSTRUCTION BY G7 CONTRACTORS IN MALAYSIA

    Directory of Open Access Journals (Sweden)

    KAMARUL ANUAR MOHAMAD KAMAR

    2014-08-01

    Full Text Available The industrialised building system (IBS survey has become an essential tool for ensuring the IBS Roadmap (2003 to 2010 meets its goals and target. As part of the process review survey, it also records the trend achievement of Malaysia in the usage of IBS in the building construction industry. The first and second IBS surveys were published in 2003 and 2005, respectively. Afterward, the IBS Roadmap’s midterm review was conducted. The third and the most recent IBS surveys were conducted in 2008 and 2010, respectively. This paper aims to highlight a part of the IBS survey report in 2010, which has been conducted to measure the drivers, barriers and the critical success factors of G7 contractors in adopting IBS construction. G7 is a Construction Industry Development Board contractor grade that can apply tender without limit. The importance of this paper is that it guides the policy and implementation strategy of IBS by G7 contractors. The survey shows that the acceptance, adoption, and deployment of IBS in the Malaysian construction industry are still low and do not address the persisting problems, such as productivity, dependency on foreign workers and high level of construction wastage.

  18. DETERMINATION OF MAIN OUTPUT PARAMETERS FOR HYDROFICATED CONSTRUCTION AND ROAD-BUILDING MACHINES AT OPERATIONAL STAGE OF THEIR LIFE CYCLE

    Directory of Open Access Journals (Sweden)

    A. N. Maximenko

    2014-01-01

    fact must be taken account while creating a machine and using it for its intended operational purpose and ensuring its operating capability. The proposed methodology for maintaining and restoration of operating capability of construction and road-building machines was published previously [3]. The paper proposes a methodology for its implementation on the basis of expenses for machine manufacturing and dynamics of main output parameters at the operational stage of its life cycle.

  19. Low enthalpy geothermal energy: borehole heat exchangers (BHE). Geological and geothermal supervision during active construction in support of the energy certification of buildings - ESBE certification plan

    OpenAIRE

    Lorenzo Cadrobbi; Fioroni Daniele; Alessandro Bozzoli

    2012-01-01

    This article draws on the experience matured while working with low-enthalpy geothermic installations both in the design and executive phase as well as ongoing monitoring, within the scope of energy conservation as it relates to building and construction. The goal is to illustrate the feasibility of adopting the ESBE certification protocol (Certification of Energy Efficient Low-Enthalpy Probes) aimed at optimizing the harnessing of local geothermic resources to satisfy the energy requirements...

  20. To the question of construction of sporting training during year of sportsmen, specialized in bodуbuilding

    Directory of Open Access Journals (Sweden)

    Sedljar J.V.

    2010-02-01

    Full Text Available Aggregate data are resulted about going near the construction of the sporting training during a year. Systematization of information is presented the special to scientifically-methodical literatures on the construction of training process of sportsmen in bodybuilding. The open questions of construction of training process of highly skilled bodybuilders are marked in a circannual macrocycle. The methodical receptions of construction of training process of sportsmen are rotined. Preparation of sportsmen of highly skilled sportsmen is characterized the expressly expressed recurrence.

  1. Bioprinting of a mechanically enhanced three-dimensional dual cell-laden construct for osteochondral tissue engineering using a multi-head tissue/organ building system

    Science.gov (United States)

    Shim, Jin-Hyung; Lee, Jung-Seob; Kim, Jong Young; Cho, Dong-Woo

    2012-08-01

    The aim of this study was to build a mechanically enhanced three-dimensional (3D) bioprinted construct containing two different cell types for osteochondral tissue regeneration. Recently, the production of 3D cell-laden structures using various scaffold-free cell printing technologies has opened up new possibilities. However, ideal 3D complex tissues or organs have not yet been printed because gel-state hydrogels have been used as the principal material and are unable to maintain the desired 3D structure due to their poor mechanical strength. In this study, thermoplastic biomaterial polycaprolactone (PCL), which shows relatively high mechanical properties as compared with hydrogel, was used as a framework for enhancing the mechanical stability of the bioprinted construct. Two different alginate solutions were then infused into the previously prepared framework consisting of PCL to create the 3D construct for osteochondral printing. For this work, a multi-head tissue/organ building system (MtoBS), which was particularly designed to dispense thermoplastic biomaterial and hydrogel having completely different rheology properties, was newly developed and used to bioprint osteochondral tissue. It was confirmed that the line width, position and volume control of PCL and alginate solutions were adjustable in the MtoBS. Most importantly, dual cell-laden 3D constructs consisting of osteoblasts and chondrocytes were successfully fabricated. Further, the separately dispensed osteoblasts and chondrocytes not only retained their initial position and viability, but also proliferated up to 7 days after being dispensed.

  2. An integrative structural health monitoring system for the local/global responses of a large-scale irregular building under construction.

    Science.gov (United States)

    Park, Hyo Seon; Shin, Yunah; Choi, Se Woon; Kim, Yousok

    2013-07-15

    In this study, a practical and integrative SHM system was developed and applied to a large-scale irregular building under construction, where many challenging issues exist. In the proposed sensor network, customized energy-efficient wireless sensing units (sensor nodes, repeater nodes, and master nodes) were employed and comprehensive communications from the sensor node to the remote monitoring server were conducted through wireless communications. The long-term (13-month) monitoring results recorded from a large number of sensors (75 vibrating wire strain gauges, 10 inclinometers, and three laser displacement sensors) indicated that the construction event exhibiting the largest influence on structural behavior was the removal of bents that were temporarily installed to support the free end of the cantilevered members during their construction. The safety of each member could be confirmed based on the quantitative evaluation of each response. Furthermore, it was also confirmed that the relation between these responses (i.e., deflection, strain, and inclination) can provide information about the global behavior of structures induced from specific events. Analysis of the measurement results demonstrates the proposed sensor network system is capable of automatic and real-time monitoring and can be applied and utilized for both the safety evaluation and precise implementation of buildings under construction.

  3. A framework of initiatives for successful application of life cycle costing (LCC in industrialised building system (IBS in Malaysian construction industry

    Directory of Open Access Journals (Sweden)

    Shamsuddin Siti Mazzuana

    2017-01-01

    Full Text Available Industrialised Building System (IBS contributes a great shift in sustainable construction and benefits the society. Previous studies have proven in general that one of the hindrances in promoting sustainable in IBS, is a high cost for any pre-cast material specifically thus effected the overall cost. The introduction of Life Cycle Costing (LCC leads into providing a better and comprehensive cost estimation, including projecting actual cost to operate the building, hence providing a better baseline for decision making. The lacking application of LCC in IBS is still in trivial impact, therefore, this paper presents a framework which produced by expressing the successful initiatives of LCC and IBS in Malaysia construction industry. The framework developed based on findings from the extensive literature reviews, 164 responded questionnaires, and 19 expert opinions, which has three sections: Strategy Development, System Development and the last part is Decision Level. Aspects of objectivity, practicality, reliability, completeness that were likely to be implemented in the Malaysian construction industry were used. There are significant opinions on the usefulness and completeness of the proposed framework in providing a comprehensive cost estimates which helps much in deciding to carry out IBS or remain with a traditional construction method.

  4. Eneregy-efficient building construction, sanitation and living in the Munich district; Energieeffizientes Bauen, Sanieren und Wohnen im Landkreis Muenchen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    The brochure under consideration supplies information to energetic questions with building, sanitation and living. Concrete practical notes and hint for promotion possibilities are given. The reader finds sources of information, consulting offers and partners for an expert advice.

  5. Protocol for the building construction process. Results of the implementation trajectory protocols EWN and EUN. Annexes; Opnameprotocol versterkt bouwkolom. Resultaten implementatietraject opnameprotocollen EWN en EUN. Bijlagen

    Energy Technology Data Exchange (ETDEWEB)

    Neeleman, J.; Uitbeijerse, G.C.M. [DWA installatie- en energieadvies, Duitslandweg 4, Postbus 274, 2410 AG Bodegraven (Netherlands)

    2013-04-15

    In the year 2012 it was foreseen to base the energy label for new buildings on the Energy Efficiency Coefficient (EPC in Dutch). This is a protocol for residential and utility buildings, with the aim to check whether and to what extent buildings were constructed according the EPC and to determine the realized EPC. In order to gain experience with the new protocols and the voluntary ventilation test the Protocol for the Energy Label for New Houses (EWN in Dutch) and the Protocol for the Energy Label for New Utility Buildings (EUN in Dutch) were conducted in 12 newly built housing projects and 5 projects in the utility building sector. This report presents the annexes [Dutch] In het jaar 2012 was voorzien om het nieuwbouwlabel te baseren op de EPC (Energie Prestatie Coefficient). Hiervoor is een opnameprotocol opgesteld voor de woningbouw en de utiliteitsbouw, met als doel te controleren of en in hoeverre conform de EPC is gebouwd en om de gerealiseerde EPC te bepalen. Om ervaring op te doen met de nieuwe opnameprotocollen en de vrijwillige ventilatietoets werden het Opnameprotocol Energielabel Woningen Nieuwbouw (EWN) en Opnameprotocol Energielabel Utiliteitsgebouwen Nieuwbouw (EUN) uitgevoerd bij 12 nieuwbouwprojecten in de woningbouw en 5 projecten in de utiliteitsbouw. In dit rapport worden de bijlagen weergegeven.

  6. Protocol for the building construction process. Results of the implementation trajectory protocols EWN and EUN; Opnameprotocol versterkt bouwkolom. Resultaten implementatietraject opnameprotocollen EWN en EUN

    Energy Technology Data Exchange (ETDEWEB)

    Neeleman, J.; Uitbeijerse, G.C.M. [DWA installatie- en energieadvies, Duitslandweg 4, Postbus 274, 2410 AG Bodegraven (Netherlands)

    2013-04-15

    In the year 2012 it was foreseen to base the energy label for new buildings on the Energy Efficiency Coefficient (EPC in Dutch). This is a protocol for residential and utility buildings, with the aim to check whether and to what extent buildings were constructed according the EPC and to determine the realized EPC. In order to gain experience with the new protocols and the voluntary ventilation test the Protocol for the Energy Label for New Houses (EWN in Dutch) and the Protocol for the Energy Label for New Utility Buildings (EUN in Dutch) were conducted in 12 newly built housing projects and 5 projects in the utility building sector [Dutch] In het jaar 2012 was voorzien om het nieuwbouwlabel te baseren op de EPC (Energie Prestatie Coefficient). Hiervoor is een opnameprotocol opgesteld voor de woningbouw en de utiliteitsbouw, met als doel te controleren of en in hoeverre conform de EPC is gebouwd en om de gerealiseerde EPC te bepalen. Om ervaring op te doen met de nieuwe opnameprotocollen en de vrijwillige ventilatietoets werden het Opnameprotocol Energielabel Woningen Nieuwbouw (EWN) en Opnameprotocol Energielabel Utiliteitsgebouwen Nieuwbouw (EUN) uitgevoerd bij 12 nieuwbouwprojecten in de woningbouw en 5 projecten in de utiliteitsbouw.

  7. The combined use of Building Information Modelling (BIM) and Unmanned Aerial Vehicle (UAV) technologies for the 3D illustration of the progress of works in infrastructure construction projects

    Science.gov (United States)

    Vacanas, Yiannis; Themistocleous, Kyriacos; Agapiou, Athos; Hadjimitsis, Diofantos

    2016-08-01

    Building Information Modelling (BIM) technology is already part of the construction industry and is considered by professionals as a very useful tool for all phases of a construction project. BIM technology, with the particularly useful 3D illustrations which it provides, can be used to illustrate and monitor the progress of works effectively through the entire lifetime of the project. Unmanned Aerial Vehicles (UAVs) have undergone significant advances in equipment capabilities and now have the capacity to acquire high resolution imagery from different angles in a cost effective and efficient manner. By using photogrammetry, characteristics such as distances, areas, volumes, elevations, object sizes, and object shape can be determined within overlapping areas. This paper explores the combined use of BIM and UAV technologies in order to achieve efficient and accurate as-built data collection and 3D illustrations of the works progress during an infrastructure construction project.

  8. Building on What You Have Learned: Object Construction Skill during Infancy Predicts the Comprehension of Spatial Relations Words

    Science.gov (United States)

    Marcinowski, Emily C.; Campbell, Julie Marie

    2017-01-01

    Object construction involves organizing multiple objects into a unified structure (e.g., stacking blocks into a tower) and may provide infants with unique spatial information. Because object construction entails placing objects in spatial locations relative to one another, infants can acquire information about spatial relations during construction…

  9. Wood products and other building materials used in new residential construction in Canada, with comparison to previous studies

    Science.gov (United States)

    Joe Elling; David B. McKeever

    2015-01-01

    New residential construction is a critical driver of the demand for lumber, structural panels and engineered wood products in Canada. For the period 2010 through 2013, residential construction accounted for roughly 23 percent of the lumber consumed in Canada and 47 percent of structural panel usage. Insufficient data concerning imports and exports prevent estimates of...

  10. High-Performance Energy-Efficient Cool Metal Roof Assemblies Utilizing Building Integrated Renewable Solar Energy Technologies for New and Retrofit Building Construction

    Science.gov (United States)

    2014-04-01

    while sandwiched by a metal sheet and fiberglass insulation , similar to the actual installation in the test building. The HFMA is used for thermal...The old roof consisted of standing-seam metal panels supported by 8 inch purlins, with R-19 (hr-ft2-°F/Btu) fiberglass insulation installed under the...layer) and fiberglass insulation . EnergyPlus can only output heat flux at the outside face and the inside face, and not at the interface of two layers

  11. Solar-optimized building construction. TC3: Solar-optimized new building ECOTEC 1 and 2: Construction of a new office and laboratory building in two stages, optimised according to solar, energetic and ecological aspects. Phase 1: Projecting, construction and system optimisation. Final report; Solaroptimiertes Bauen. TK 3: Solaroptimierter Neubau ECOTEC 1 und 2: Neubau eines Buero und Laborgebaeudes in zwei Bauabschnitten, optimiert nach solaren, energetischen und oekologischen Gesichtspunkten. Phase 1: Planung, Bauausfuehrung und Systemoptimierung. Schlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    The two ECOTEC buildings are constructed on the premises of Bremen university. They are identical mirror buildings with optimised solar technology and heat pumps to reduce the dependence on external energy supply. The results achieved so far are promising. [German] Im Mittelpunkt des Vorhabens stand die Errichtung der solaroptimierten Niedrigenergie-Gebaeude ECOTEC in zwei Bauabschnitten gleichem, aber spiegelverkehrtem Grundrissen auf dem Gelaende des Technologieparks der Universitaet Bremen. Das Planungskonzept sah zur Reduktion des Fremdenergiebedarfs den optimierten Einsatz und die Kopplung von Solarenergie, Waermepumpe ueber die Gebaeudeleittechnik vor. Basis fuer alle Berechnungen und Planungen war der Niedrigenergiestandard, der durch erhoehte Waermedaemmung der Gebaeudehuelle, kontrollierte Lueftung, solartechnische Module und solararchitektonische Merkmale erreicht und sogar ueberschritten wurde. Durch den gezielten Einsatz der Gebaeudeleit- und -systemtechnik wird ein energiesparender Betrieb insbesondere der Gebaeudebeheizung, der Lueftungsanlage sowie der Beleuchtung schon in der Planungsphase vorbereitet. Zusammenfassend laesst sich feststellen, dass das entwickelte Technikkonzept nach erfolgter Abstimmung mit den Nutzerbeduerfnissen geringste Energieverbraeuche bei sehr gutem Komfort bietet. (orig.)

  12. Lateral Displacement And Shear Lag Effect Of High-Rise Buildings With Diagrid SystemThat Is Constructed Above A Frame

    Directory of Open Access Journals (Sweden)

    Abd. Samat Roslida

    2017-01-01

    Full Text Available Diagrid system has gained a wide acceptance in the design of tall buildings due to its many advantages including its high structural efficiency in resisting both gravity and lateral loads. Most diagrid structures that had been studied have full triangulated members from the ground level to the top of the buildings where comparison in the effectiveness in minimizing the lateral displacement was often made between structures with full diagrid, frame and outrigger system. Nevertheless, no study has been performed on the effectiveness of the diagrid that is constructed above a frame system. The objective of this research is to understand the behavior of the lateral displacement and shear lag effect due to wind load when the diagrid structure is constructed above a frame. Models of sixty storey buildings were analyzed by using Staad.Pro software. The level where the diagrid members started and the spacing of vertical base columns of the frame were altered. The lateral displacement and shear lag effect resembled closely of those of the model of full diagrid when the diagrid was started at level 3, and the vertical base columns were uniformly spaced at 6 metres.

  13. The Re-invention of the Tower House for the Construction of Green Buildings NZEB, Integrated With the Vertical Axis Small Wind System

    Science.gov (United States)

    Marino, Francesco Paolo R.

    Nowadays the cultural and economic context aims to create a sustainable "carbon zero" society through energy-efficient green buildings NZEB, but it has so far overlooked a construction type widely spread throughout Europe, especially in the Middle Ages, and that in Italy still characterizes the most beautiful landscapes of Tuscany and other cities: the tower-house. The aim of the research was to verify the possibility of reinventing the type of the familiar tower-house, which is intrinsically directed to conquer the height and therefore higher wind conditions, assuming the installation on the top of a small wind system to use wind energy, to make the building energetically self-sufficient. This building is designed from a wooden structure of a deciduous tree widespread in the Italian region of Basilicata, the Turkish Oak, which, subject to processes of hygrothermal conditioning, can be transformed into the base material to compose laminated timber beams and pillars, able to guarantee a load of exercise, to bending stress, equal to 40.9 N/mm2, as followed by tests in the Laboratory of Engineering of the University of Basilicata, Potenza. With normal wind conditions in the city of Potenza (average of 6.5 m/s), a 5 kW wind turbine mounted at 25 m tall on a 13 m high building is able to provide all the energy the building needs, with its attractive tapered oval top that minimizes turbulence. Entirely made with structures, finishes and natural insulation, the building is a sign in the landscape, history and future together.

  14. A preliminary 3D model for cytochrome P450 2D6 constructed by homology model building

    NARCIS (Netherlands)

    Koymans, L M; Vermeulen, N P; Baarslag, A; Donné-Op den Kelder, G M

    A homology model building study of cytochrome P450 2D6 has been carried out based on the crystal structure of cytochrome P450 101. The primary sequences of P450 101 and P450 2D6 were aligned by making use of an automated alignment procedure. This alignment was adjusted manually by matching

  15. Service life assessment of historical building envelopes constructed using different types of sandstone: a computational analysis based on experimental input data.

    Science.gov (United States)

    Kočí, Václav; Maděra, Jiří; Fořt, Jan; Žumár, Jaromír; Pavlíková, Milena; Pavlík, Zbyšek; Černý, Robert

    2014-01-01

    Service life assessment of three historical building envelopes constructed using different types of sandstone is presented. At first, experimental measurements of material parameters of sandstones are performed to provide the necessary input data for a subsequent computational analysis. In the second step, the moisture and temperature fields across the studied envelopes are calculated for a representative period of time. The computations are performed using dynamic climatic data as the boundary conditions on the exterior side of building envelope. The climatic data for three characteristic localities are experimentally determined by the Czech Hydrometeorological Institute and contain hourly values of temperature, relative humidity, rainfalls, wind velocity and direction, and sun radiation. Using the measured durability properties of the analyzed sandstones and the calculated numbers of freeze/thaw cycles under different climatic conditions, the service life of the investigated building envelopes is assessed. The obtained results show that the climatic conditions can play a very significant role in the service life assessment of historical buildings, even in the conditions of such a small country as the Czech Republic. In addition, the investigations reveal the importance of the material characteristics of sandstones, in particular the hygric properties, on their service life in a structure.

  16. Knowledge platform for calculating climate impact from construction and building materials. Literature study; Kunnskapsplattform for beregning av klimabelastning fra bygg og byggematerialer. Litteraturstudie

    Energy Technology Data Exchange (ETDEWEB)

    Roenning, Anne; Lyng, Kari-Anne; Vold, Mie

    2011-07-01

    Greenhouse gas emissions from building linked today to a large extent to the energy consumption during the operating period. Through increasingly stringent energy requirements and other changes, the energy consumption for the operation could go down over time. This means in this case that the energy required to produce, transport and set up the building, to a greater extent can be relatively more important in a life-cycle analysis. KRD in that regard ha given Oestfoldforskning the commission to conduct a literature study that will provide an overview and assessment of the literature / research papers describing various building materials climate impact and how this translates into a lifetime (LCA - Life Cycle Assessment), and thus describe the knowledge platform these analyzes are based in. It also means a description of the factors that affect the climate and the environment, including the stages of life that are important. Literature study is conducted by searching scientific databases (Springer Link, Science Direct, Google Scholar, Norwegian EPD database of declarations). The literature search is limited to studies that are based on LCA as a methodology for calculating the climate impacts associated with the construction and building materials. Based on the review of literature is also undertaken an analysis focusing on explaining the methodological platform between the studies are based on, in order to explain why the results differ and / or may not be comparable.(eb)

  17. Service Robotics in Construction

    OpenAIRE

    Thomas, Bock

    2008-01-01

    Service robots in construction move from cleaning of the construction site and diagnosing of the building fa?ade as security, logistic and assistive robots into the building and apartment and will in the future share urban environment with humans.

  18. Risk Management in Complex Construction Projects that Apply Renewable Energy Sources: A Case Study of the Realization Phase of the Energis Educational and Research Intelligent Building

    Science.gov (United States)

    Krechowicz, Maria

    2017-10-01

    Nowadays, one of the characteristic features of construction industry is an increased complexity of a growing number of projects. Almost each construction project is unique, has its project-specific purpose, its own project structural complexity, owner’s expectations, ground conditions unique to a certain location, and its own dynamics. Failure costs and costs resulting from unforeseen problems in complex construction projects are very high. Project complexity drivers pose many vulnerabilities to a successful completion of a number of projects. This paper discusses the process of effective risk management in complex construction projects in which renewable energy sources were used, on the example of the realization phase of the ENERGIS teaching-laboratory building, from the point of view of DORBUD S.A., its general contractor. This paper suggests a new approach to risk management for complex construction projects in which renewable energy sources were applied. The risk management process was divided into six stages: gathering information, identification of the top, critical project risks resulting from the project complexity, construction of the fault tree for each top, critical risks, logical analysis of the fault tree, quantitative risk assessment applying fuzzy logic and development of risk response strategy. A new methodology for the qualitative and quantitative risk assessment for top, critical risks in complex construction projects was developed. Risk assessment was carried out applying Fuzzy Fault Tree analysis on the example of one top critical risk. Application of the Fuzzy sets theory to the proposed model allowed to decrease uncertainty and eliminate problems with gaining the crisp values of the basic events probability, common during expert risk assessment with the objective to give the exact risk score of each unwanted event probability.

  19. Energy use for building construction. Preliminary progress report for period March 1, 1976--May 15, 1976. [Energy intensities of various sectors and overall industry from Energy Input/Output Model

    Energy Technology Data Exchange (ETDEWEB)

    Hannon, B M; Stein, R G; Segal, B; Serber, D

    1976-05-01

    The building construction industry, as broken down by the Bureau of Economic Analysis, U.S. Department of Commerce, was integrated into the Energy Input/Output Model developed at the Center for Advanced Computation, University of Illinois. The resulting expanded model was used to determine energy intensities of various (49) building construction (new and maintenance) sectors and of the overall building construction industry, for year 1967. The latter figure was computed at about 70,000 Btu/$, i.e., the construction industry on the average required about 70,000 Btu of direct and indirect energy per dollar of output produced. The most energy intensive sector was New Construction of Petroleum Pipelines (about 150,000 Btu/$), while the least intensive was Maintenance Construction for Electric Utilities (about 25,000 Btu/$). Also developed were total energy (direct and indirect) requirements to final demand for the building construction industry, for 1967. The overall industry required about 6000 trillion Btu, or about nine percent of the total U.S. energy requirement. New Highway Construction required the most energy to final demand (about 1000 trillion Btu, or 16 percent of the total construction industry requirement), while Maintenance Construction Residential required the least (about 9 trillion Btu, or 0.1 percent of the total industry requirement.

  20. Cultural resource survey report for construction of office building, driveway, and parking lot at the Stanford Linear Accelerator Center. Part 1

    Energy Technology Data Exchange (ETDEWEB)

    Perry, M.E.

    1995-01-01

    An Environmental Assessment and associated documentation is reported for the construction of an office building and parking lot in support of environmental management personnel activities. As part of the documentation process, the DOE determined that the proposed project constituted an undertaking as defined in Section 106 of the National Historic Preservation Act. In accordance with the regulations implementing Section 106 of the National Historic Preservation Act, a records and literature search and historic resource identification effort were carried out on behalf of the Stanford Linear Accelerator Center (SLAC). This report summarizes cultural resource literature and record searches and a historic resource identification effort.

  1. Construction management

    CERN Document Server

    Pellicer, Eugenio; Teixeira, José C; Moura, Helder P; Catalá, Joaquín

    2014-01-01

    The management of construction projects is a wide ranging and challenging discipline in an increasingly international industry, facing continual challenges and demands for improvements in safety, in quality and cost control, and in the avoidance of contractual disputes. Construction Management grew out of a Leonardo da Vinci project to develop a series of Common Learning Outcomes for European Managers in Construction. Financed by the European Union, the project aimed to develop a library of basic materials for developing construction management skills for use in a pan-European context. Focused exclusively on the management of the construction phase of a building project from the contractor's point of view, Construction Management covers the complete range of topics of which mastery is required by the construction management professional for the effective delivery of new construction projects. With the continued internationalisation of the construction industry, Construction Management will be required rea...

  2. REDUCTION OF THE RISK IN PUBLIC PROCUREMENT BY USING DESIGN-BUILD AS A MEANS FOR SUITABLE CONSTRUCTING

    Directory of Open Access Journals (Sweden)

    Jakub Blaťák

    2016-07-01

    Full Text Available Suitable and sustainable buildings have increased demands for design and for the transfer of design requirements to realization. That causes an increase of risk connected with the differences between planned and real parameters of the buildings. This article will outline the main theme comparison between DBB and DB projects concerning contractor’s risk management level. This comparative analysis explains, using the RIPRAN method, the hidden risks in each type of delivery method. The comparison identifies numerous contractual topics and risks included in both and gives deeper insight into risk management, both for the contracting party and also for public procurement. Applying risk analysis strategies and tools to the process will help decision-makers evaluate and select the suitable delivery method consistently and defensibly. This paper gives generic risk factors related to both project types. The results indicate risk factors with influence on the price, probability of occurrence and unfavourable impact on the project and help allocate risk level more properly in accordance with its high, middle or low probable impact. Public investment is a significant part of the public budget, the application of design-build can help with the reduction of corruption, and the public sector can benefit from the usage of DB projects to help eliminate the mistakes made by contracting authorities.

  3. Construction of a New Fire Station, Demolition of Buildings 530 and 606 and Relocation of the Hazardous Cargo Area at Grand Forks Air Force Base, North Dakota. Finding of No Significant Impact (FOSNI). Finding of No Practical Alternative(FONPA)

    Science.gov (United States)

    2009-09-23

    would need to be tracked by the construction agent IAW the appropriate rules. The permit would regulate discharge of storm water runoff until the...was constructed in 1965 as a missile transfer building. The one-story, prefabricated steel structure has a reinforced concrete foundation and a steel...site of old Hazardous Cargo Area. Demolish building 530 and 606, excavation, removal of concrete slabs and foundations, disposal of all debris off site

  4. Finding of No Significant Impact: Environmental Assessment Construction of Hangar Addition Building 820 Tinker Air Force Base, Oklahoma

    Science.gov (United States)

    2012-03-06

    would be exposed to construction no ise intermittently , and only for the duration of the project; there fore, an ex tended <..lisruptio n o f normal...exercise rooms, racquetba ll rooms, indoor track, Olympic s17e pool, child play area, two full court basketball courts. locker room . as well as men’s

  5. Solar-optimized building construction. Part 1: Integration of a cross-flowed solar absorber into a building shell (solar wall). Final report; Solaroptimiertes Bauen. Teilkonzept 1: Integration eines luftdurchstroemten Solarabsorbers in eine Gebaeudehuelle (Solarwand). Schlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Loeffler, M.; Braeuchle, R.; Lehmann, J.; Wagner, A.

    1999-02-01

    In low-energy buildings, heating energy consumption is reduced as a result of lower heat losses via transmission and ventilation. This is achieved by thicker insulation, heat-insulating glass, and partly also by special ventilation systems with an integrated heat recovery function. The project comprised a theoretical investigation and construction of several variants of closed external walls with cross-flowed absorbers. The result will be an innovative construction technology which will require new solutions in materials selection, statics, overhating, vapour condensation, dust formation, dimensioning and control elements. The results of the project will be integrated in a concept for modernisation of older buildings. [German] Der heute immer noch sehr hohe Energiebedarf zur Gebaeudeheizung beinhaltet ein enormes Einsparpotential und damit die Moeglichkeit der Reduzierung des Kohlendioxidausstosses. Niedrigenergiehaeuser vermindern den Heizenergiebedarf durch verringerte Transmissions- und Lueftungswaermeverluste. Dies wird erreicht durch groessere Daemmstoffstaerken, die Verwendung von Waermeschutzglas und zum Teil durch den Einsatz von Lueftungsanlagen mit Waermerueckgewinnung. Im Mittelpunkt des Vorhaben steht die theoretische Untersuchung und die bauliche Umsetzung verschiedener Varianten geschlossener durchstroemter Aussenwaende mit durchstroemtem Absorber. Aus der gewuenschten Anwendung der Solarwand, zunaechst an Neubauten, entspringt eine innovative Bautechnik. Diese erfordert Loesungen in den Problemfeldern Materialwahl, Statik, Ueberhitzung, Wasserdampfkondensation, Staubbildung, Dimensionierung und Reglerbau. Die Ergebnisse koennen spaeter in ein Konzept zur Nachruestung von Altbauten einfliessen. (orig.)

  6. Training program for energy conservation in new building construction. Volume III. Energy conservation technology for plan examiners and code administrators. Energy Conservation Technology Series 200

    Energy Technology Data Exchange (ETDEWEB)

    None

    1977-12-01

    Under the sponsorship of the United States Department of Energy, a Model Code for Energy Conservation in New Building Construction has been developed by those national organizations primarily concerned with the development and promulgation of model codes. The technical provisions are based on ASHRAE Standard 90-75 and are intended for use by state and local officials. The subject of regulation of new building construction to assure energy conservation is recognized as one in which code officials have not had previous exposure. It was also determined that application of the model code would be made at varying levels by officials with both a specific requirement for knowledge and a differing degree of prior training in the state-of-the-art. Therefore, a training program and instructional materials were developed for code officials to assist them in the implementation and enforcement of energy efficient standards and codes. The training program for Energy Conservation Tehnology for Plan Examiners and Code Administrators (ECT Series 200) is presented.

  7. A Mathematical Model of the Color Preference Scale Construction in Quality Management at the Machine-Building Enterprise

    Science.gov (United States)

    Averchenkov, V. I.; Kondratenko, S. V.; Potapov, L. A.; Spasennikov, V. V.

    2017-01-01

    In this article, the author consider the basic features of color preferences. The famous scientists’ works confirm their identity and independence of subjective factors. The article examines the method of constructing the respondent’s color preference individual scale on the basis of L Thurstone’s pair election method. The practical example of applying this technique for constructing the respondent’s color preference individual scale is given. The result of this method application is the color preference individual scale with the weight value of each color. The authors also developed and presented the algorithm of applying this method within the program complex to determine the respondents’ attitude to the issues under investigation based on their color preferences. Also, the article considers the possibility of using the software at the industrial enterprises to improve the quality of the consumer quality products.

  8. Universal energy ratings for Germany - (Part 2): Evolution of rating distributions according to year of building construction; Universelle Energiekennzahlen fuer Deutschland - Teil 2: Verbrauchskennzahlentwicklung nach Baualtersklassen

    Energy Technology Data Exchange (ETDEWEB)

    Greller, Martin [BRUNATA Waermemesser GmbH and Co. KG, Muenchen (Germany); Schroeder, Franz; Papert, Olaf [METRONA Waermemesser Union GmbH, Muenchen (Germany); Hundt, Volker [BRUNATA Waermemesser Hagen GmbH and Co. KG, Hamburg (Germany); Mundry, Bernhard [Brunata Waermemesser-Gesellschaft Schultheiss GmbH and Co., Huerth (Germany)

    2010-02-15

    To date, universal energy ratings for Germany contain about a quarter of a million energy consumption ratings recorded by the BRUNATA METRONA Group within the recent six year period. Data processing comprises a retro perspective review and normalisation of all energy ratings according to new, localised climate factors from the German weather service. A subset of 110.000 energy ratings concerning gas- and oil-heated buildings only - half of those built past 1977 - has been analysed statistically by creating energy rating distributions depending on construction year, focussing exclusively on unrenovated objects (according to 1995 standards) built prior to 1995 and new buildings constructed in 1995 or later. It is shown, that the median values of rating distributions from about 1900 up into the 1960ies appear relatively constant around 155 kWh/(m2a). For building construction years within this time interval 90% of todays energy ratings (5% to 95 %-percentiles) fall into the range between 100 and 260 kWh/(m2a). For construction years after the mid 1960ies the median values continuously decrease to about 85 kWh/(m2a) today. Their corresponding standard deviations decreased by a factor of two from above 50 kWh/(m2a) to about 25 kWh/(m2a). The most distinct relative decrease occurred between 1994 and 1995 when the WSVO95 was activated. This work adds a direct comparison between the recorded today energy ratings and the typical requirement levels of the various heat insulation regulations, WSVO, and Building Energy Conservation Ordinances, EnEV, concerning building construction years starting from 1977. We also present parameterization functions for the most important rating distributions that could be utilized for general model calculations and extrapoletions to picture future energy efficiency evolution. [German] Die universellen Energiekennzahlen fuer Deutschland beinhalten bis dato 1/4 Million Gebaeude-Energieverbrauchskennzahlen der BRUNATA-METRONA-Gruppe aus den

  9. Two new hybrid molybdenum arsenate derivative constructed from [As2Mo6O26]6- building: Synthesis, structural characterization and photocatalysis property

    Science.gov (United States)

    Zhang, Xiao; Luo, Xuan; Duan, Yuanling; Huang, Yanping; Zhang, Nanxi; Zhao, Liyan; Wu, Jie

    2017-08-01

    Two new inorganic-organic hybrid materials [Cu(enMe)2]2{(As2Mo6O26) [Cu(enMe)2]}·4H2O (1) and [As2Mo6(OH)2O24][Cu(H2O)2(phen)]2 (2) (enMe = 1,2'-propanediamine, phen = 1,10'-phenanthroline) based on [As2Mo6O26]6- building blocks, denoted as [As2Mo6], have been obtained by hydrothermal methods. 1 shows a 1-D straight chain structure constructed form [As2Mo6] building blocks and [Cu(enMe)2] complexes, and then extended to 3-D supramolecular network by lattice water via hydrogen bonds interactions. 2 exhibits a new 1-D covalent ribbon with large rectangular grids formed from [As2Mo6] building blocks connected by [Cu(H2O)2(phen)] complexes, then extended into 3-D supramolecular network via hydrogen bonds and π···π interactions. In additional, the photocatalytic activity for methylene blue degradation under visible-light irradiation of 2 was investigated.

  10. Construction Management.

    Science.gov (United States)

    Abbott, James F.

    This article provides a detailed discussion of a team approach to building that involves a construction manager, an architect, and a contractor. Bidding methods are outlined; the major components in construction management -- value engineering and fast track scheduling -- and the use of performance specifications are discussed. The construction…

  11. Sustainability Base Construction Update

    Science.gov (United States)

    Mewhinney, Michael

    2012-01-01

    Construction of the new Sustainability Base Collaborative support facility, expected to become the highest performing building in the federal government continues at NASA's Ames Research Center, Moffet Field, Calif. The new building is designed to achieve a platinum rating under the leadership in Energy and Environment Design (LEED) new construction standards for environmentally sustainable construction developed by the U. S. Green Building Council, Washington, D. C. When completed by the end of 2011, the $20.6 million building will feature near zero net energy consumption, use 90 percent less potable water than conventionally build buildings of equivalent size, and will result in reduced building maintenance costs.

  12. Steel slag: a waste industrial by-product as an alternative sustainable green building material in construction applications--an attempt for solid waste management.

    Science.gov (United States)

    Pofale, Arun D; Nadeem, Mohammed

    2012-01-01

    This investigation explores the possibility of utilizing granular slag as an alternative to fine aggregate (natural sand) in construction applications like masonry and plastering. Construction industry utilizes large volume of fine aggregate in all the applications which has resulted into shortage of good quality naturally available fine aggregate. Use of granular slag serves two fold purposes, i.e. waste utilisation as well as alternative eco-friendly green building material for construction. The investigation highlights comparative study of properties with partial and full replacement of fine aggregate (natural sand) by granular slag in cement mortar applications (masonry and plastering). For this purpose, cement mortar mix proportions from 1:3, 1:4, 1:5 & 1:6 by volume were selected for 0, 25, 50, 75 & 100% replacement levels with w/c ratios of 0.60, 0.65, 0.70 & 0.72 respectively. Based on the study results, it could be inferred that replacement of natural sand with granular slag from 25 to 75% increased the packing density of mortar which resulted into reduced w/c ratio, increased strength properties of all mortar mixes. Hence, it could be recommended that the granular slag could be effectively utilized as fine aggregate in masonry and plastering applications in place of conventional cement mortar mixes using natural sand.

  13. Conditions of contract for construction for building and engineering works designed by the employer : general conditions : guidance for the preparation of particular conditions forms of letter of tender, contract agreement and dispute adjudication agreement

    CERN Document Server

    1999-01-01

    Conditions of Contract for Construction, which are recommended for building or engineering works designed by the Employer or by his representative, the Engineer. Under the usual arrangements for this type of contract, the Contractor constructs the works in accordance with a design provided by the Employer. However, the works may include some elements of Contractor-designed civil, mechanical, electrical and/or construction works.

  14. Evaluation of environmental sustainability in the construction and management of buildings in Mexico; Evaluacion de la sustentabilidad ambiental en la construccion y administracion de edificios en Mexico

    Energy Technology Data Exchange (ETDEWEB)

    De Buen Rodriguez, Odon [Energia, Tecnologia y Educacion, S.C., ENTE, S.C. (Mexico)

    2010-12-15

    The purpose of the present work is to establish a methodology for assessing the sustainability of buildings in Mexico, which can be standardized and comparable with the rest of North America. For this purpose three building assessment systems in North America were first analyzed: (a) Leadership in Energy and Environmental Design (LEED), (b) Living Building Challenge (LBC); and (c) Energy Star for Buildings. In addition, the analysis included Spain's Green Building Council (GBCe), to have a different comparison point with the North American systems. The analysis of the four systems suggests the use of the Energy Star system due to the following reasons: 1) For all systems, the Energy Star system is the basis for comparison in terms of energy consumption and therefore emissions of greenhouse gases, 2) It is the system requiring the simplest description of the building (construction surface, occupancy and energy consumption) and does not require (unlike other systems) data on the location of the buildings, 3) For the LEED, LBC and GBCe systems, the evaluation must be performed by professionals accredited, while for the Energy Star certification is less restrictive A database of public buildings, managed by the Comision Nacional para el Uso Eficiente de la Energia (CONUEE), was used. It integrates a significant number of office buildings occupied by departments and agencies of the federal government in Mexico. This database holds information on annual energy consumption and area occupied. Such database was complemented with available information on Degree Day data provided by the Asociacion de Empresas para el Ahorro de Energia en la Edificacion (AEAEE); it allowed to include information on weather in the same terms as the proposed methodology by Energy Star system. From the analysis, some suggestions are presented below. First, it is suggested to strengthen the collection and integration of information related to commercial buildings in Mexico to implement a

  15. Creation of Polyurethane Injection Materials, Their Pilot-industrial Production, Development and Industrial Introduction of the Technology of Strengthening and Restoring the Operability of Damaged Constructions and Buildings

    Directory of Open Access Journals (Sweden)

    Marukha, V.І.

    2015-01-01

    Full Text Available Polyurethane and foam polyurethane fluid injection materials not conceding foreign analogues and technology technology of restoration and strengthening the operability of concrete and reinforced concrete structures and buildings damaged by cracks were developed. Normative and technical documentation on the injection materials and technological processes was created. The diagnosticrestoring complex for implementing the above technologies was designed, installed and utilized at the construction sites. The equipment is designed and manufactured; the technology of the research and industrial production of «A» and «B» components of injecting polyurethane materials is designed and developed. The pilot-scale batch is manufactured. Technological processes of preparation and application of the «A» and «B» componentsof the injecting materials in industrial conditions are worked out and implemented.

  16. Radiological hazards due to naturally occurring radionuclides in the selected building materials used for the construction of dwellings in four districts of the Punjab Province, Pakistan.

    Science.gov (United States)

    Rahman, S U; Rafique, M; Jabbar, A; Matiullah

    2013-03-01

    This paper presents the finding of a study undertaken to determine the naturally occurring radionuclides present in commonly used building materials for dwellings and workplaces in four districts of the Punjab Province, Pakistan. The concentrations of (226)Ra, (232)Th and (40)K were measured by using gamma-ray spectroscopy. A total of 80 samples of building materials were collected from various manufacturers and suppliers of the studied area. The specific activities of (226)Ra, (232)Th and (40)K were measured in building samples, and results ranged from minimum values of 9 ± 1, 9 ± 2 and 27 ± 8 Bq kg(-1) to maximum values of 106 ± 5, 133 ± 5 and 914 ± 21 Bq kg(-1) with mean values of 42 ± 3, 48 ± 3 and 376 ± 16 Bq kg(-1), respectively. From the measured activity concentrations, equivalent radium (Ra(eq)), terrestrial absorbed dose rate, annual effective dose as well as external and internal hazard indices were calculated and found to range from 52 ± 7 to 274 ± 15 Bq kg(-1), 23 ± 3 to 130 6 nGy h(-1), 0.15 ± 0.02 to 0.80 ± 0.03 mSv, 0.14 ± 0.02 to 0.75 ± 0.04 and 0.2 ± 0.02 to 0.98 ± 0.05, respectively. These results were comparable to the results of similar studies undertaken locally and in other countries. The samples considered were safe for use in construction of dwellings in the study area and do not pose any significant source of radiation hazard.

  17. Citizen science applied to building healthier community environments: advancing the field through shared construct and measurement development.

    Science.gov (United States)

    Hinckson, Erica; Schneider, Margaret; Winter, Sandra J; Stone, Emily; Puhan, Milo; Stathi, Afroditi; Porter, Michelle M; Gardiner, Paul A; Dos Santos, Daniela Lopes; Wolff, Andrea; King, Abby C

    2017-09-29

    Physical inactivity across the lifespan remains a public health issue for many developed countries. Inactivity has contributed considerably to the pervasiveness of lifestyle diseases. Government, national and local agencies and organizations have been unable to systematically, and in a coordinated way, translate behavioral research into practice that makes a difference at a population level. One approach for mobilizing multi-level efforts to improve the environment for physical activity is to engage in a process of citizen science. Citizen Science here is defined as a participatory research approach involving members of the public working closely with research investigators to initiate and advance scientific research projects. However, there are no common measures or protocols to guide citizen science research at the local community setting. We describe overarching categories of constructs that can be considered when designing citizen science projects expected to yield multi-level interventions, and provide an example of the citizen science approach to promoting PA. We also recommend potential measures across different levels of impact. Encouraging some consistency in measurement across studies will potentially accelerate the efficiency with which citizen science participatory research provides new insights into and solutions to the behaviorally-based public health issues that drive most of morbidity and mortality. The measures described in this paper abide by four fundamental principles specifically selected for inclusion in citizen science projects: feasibility, accuracy, propriety, and utility. The choice of measures will take into account the potential resources available for outcome and process evaluation. Our intent is to emphasize the importance for all citizen science participatory projects to follow an evidence-based approach and ensure that they incorporate an appropriate assessment protocol. We provided the rationale for and a list of contextual factors

  18. Library Buildings and Equipment.

    Science.gov (United States)

    Oringdulph, Robert E.; And Others

    1990-01-01

    Six articles discuss library buildings and construction: (1) library buildings and their parts; (2) the North Campus Library of California State University at Long Beach in 1995; (3) new structures for teaching libraries; (4) construction standards for California public libraries; (5) Sick (Library) Building Syndrome; and (6) using focus-group…

  19. Finding of No Significant Impact (FONSI) Finding of No Practicable Alternative (FONPA): Construct of a New Fire Station, Demolition of Buildings 530 and 606 and Relocation of the Hazardous Cargo Area at Grand Forks Air Force Base, North Dakota

    Science.gov (United States)

    2009-09-18

    station (530) and missile transfer building (606) and would need to be tracked by the construction agent IAW the appropriate rules. The permit...The one-story, prefabricated steel structure has a reinforced concrete foundation and a steel roof (Figure 3-10). The building is roughly 152 ft. east...and 606, excavation, removal of concrete slabs and foundations, disposal of all debris off site, backfill, grading, seeding and final site restoration

  20. Blue roofs: Red tape all the way. A court ruling turns many solar cell arrays on farm building roofs in Nordrhein-Westfalen into illegal constructions; Wenn der Amtsschimmel blau sieht. Ein Gerichtsbeschluss macht viele Solaranlagen auf Bauernhoefen in NRW zu Schwarzbauten

    Energy Technology Data Exchange (ETDEWEB)

    Podewils, Christoph

    2010-11-15

    According to most German state building laws, solar cell arrays can be installed on buildings without licensing. However, a recent ruling of the Muenster Higher Administrative Court states that commercially used solar power plants on farm buildings require a construction permit. This may affect Federal building laws as well. (orig.)

  1. Tilt-up construction

    OpenAIRE

    Crompton, Richard E.

    1992-01-01

    CIVINS Tilt-up construction is a special form of precast concrete construction. The technique is used for constructing buildings by prefabricating concrete wall sections (panels) in a horizontal position on either the building's floor slab or on a temporary casting slab. Once the wall sections have cured, they are tilted to a vertical position using a mobile crane, they are temporarily braced in their final upright position, and finally, they are tied into the building's roof and floor sys...

  2. Phased Construction Completion Report for Building K-1401 of the Remaining Facilities Demolition Project at the East Tennessee Technology Park Oak Ridge, Tennessee

    Energy Technology Data Exchange (ETDEWEB)

    Garland S.

    2008-03-01

    This Phased Construction Completion Report documents the demolition of Bldg. K-1401, Maintenance Building, addressed in the Action Memorandum for the Remaining Facilities Demolition Project at East Tennessee Technology Park, Oak Ridge, Tennessee (DOE 2003a) as a Comprehensive Environmental Response, Compensation, and Liability Act of 1980 non-time-critical removal action. The objectives of the removal action (DOE 2003a) - to eliminate the source of potential contamination, to eliminate the threat of potential future releases, and/or to eliminate the threats to the general public and the environment - were met. The end state of this action is for the slab to remain with all penetrations sealed and grouted or backfilled. The basement and pits remain open. There is residual radiological and polychlorinated biphenyl contamination on the slab and basement. A fixative was applied to the area on the pad contaminated with polychlorinated biphenyls. Interim land-use controls will be maintained until final remediation decisions are made under the Zone 2 Record of Decision (DOE 2005a).

  3. DESIGN AND CONSTRUCTION OF SCHOOL BUILDINGS. PROCEEDINGS, ASSOCIATION OF SCHOOL BUSINESS OFFICIALS OF THE UNITED STATES AND CANADA, ANNUAL MEETING AND EDUCATIONAL EXHIBIT, (50TH SAN FRANCISCO, CALIFORNIA, OCTOBER 71-22, 1964).

    Science.gov (United States)

    LIEBESKIND, MORRIS

    PROBLEMS IN THE SCHEDULING AND COMPLETION OF SCHOOL BUILDING DESIGN AND CONSTRUCTION PROJECTS ARE DISCUSSED WITH REFERENCE TO THE CRITICAL PATH METHOD OF PROGRAMING. THE DISCUSSION GIVES A BROAD OVERVIEW OF THE METHOD WITH DETAILED SUGGESTIONS FOR SCHOOL ADMINISTRATORS. SPECIFIC SUBJECT AREAS INCLUDE--(1) CPM, A NEW MANAGEMENT TOOL, (2) CPM…

  4. Construction Sector (NAICS 23)

    Science.gov (United States)

    Find environmental regulatory information for the construction sector, including the construction of buildings or engineering projects. This includes RCRA information for hazardous waste, refrigeration compliance, asbestos, effluent guidelines & lead laws

  5. Danish building typologies

    DEFF Research Database (Denmark)

    Wittchen, Kim Bjarne; Kragh, Jesper

    The objective of TABULA is to develop a harmonised building typology for European countries. Each national building typology will consist of a set of residential model buildings with characteristic energy-related properties (element areas of the thermal building envelope, U-values, supply system...... efficiencies). The model buildings will each represent a specific construction period of the country in question and a specific building size. Furthermore the number of buildings, flats and the overall floor areas will be given, which are represented by the different building types of the national typologies....

  6. Building Procurement

    DEFF Research Database (Denmark)

    Andersson, Niclas

    2007-01-01

    ‘The procurement of construction work is complex, and a successful outcome frequently elusive’. With this opening phrase of the book, the authors take on the challenging job of explaining the complexity of building procurement. Even though building procurement systems are, and will remain, complex...... despite this excellent book, the knowledge, expertise, well-articulated argument and collection of recent research efforts that are provided by the three authors will help to make project success less elusive. The book constitutes a thorough and comprehensive investigation of building procurement, which...... evolves from a simple establishment of a contractual relationship to a central and strategic part of construction. The authors relate to cultural, ethical and social and behavioural sciences as the fundamental basis for analysis and understanding of the complexity and dynamics of the procurement system...

  7. Mining Association Rules Between Credits in the Leadership in Energy and Environmental Design for New Construction (LEED-NC) Green Building Assessment System

    National Research Council Canada - National Science Library

    Thomas, Benjamin J

    2008-01-01

    The Leadership in Energy and Environmental Design (LEED) Building Assessment System is a performance-based tool for determining the environmental impact of a facility from the whole-building perspective...

  8. Applied building physics

    CERN Document Server

    Hens, Hugo S L C

    2012-01-01

    The energy crises of the 1970s, persisting moisture problems, complaints about sick buildings, thermal, visual and olfactory discomfort, and the move towards more sustainability in building construction have pushed Building Physics to the forefront of building innovation. The societal pressure to diminish energy consumption in buildings without impairing usability acted as a trigger to activate the whole notion of performance based design and construction. As with all engineering sciences, Building Physics is oriented towards application, which is why, after a first book on fundamentals this s

  9. Inverted construction method using self compacting concrete. Underground re-building work of Meguro station of Toyoko line; Koryudo concrete ni yoru chikaeki gyakuuchi seko. Tokyu Mekamasen Meguroeki kairyo koji

    Energy Technology Data Exchange (ETDEWEB)

    Abe, Y. [Kajima Corp., Tokyo (Japan)

    1998-05-10

    In the construction to make Meguro Station of Tokyu Line an underground station, RC shell construction from the second basement to the fourth basement was applied with the inverted construction method using self compacting concrete of about 6,400 m{sup 3}, which is the largest scale for construction in the central urban area and as transportation work from general ready-mixed concrete plants. The method provided a good result in terms of shell quality, construction period and cost. This paper introduces the reasons for its application, the construction method and result. In order to carry out the construction while the railway is in operation, the present station was transferred onto a temporary steel platform. Before the station was transferred, RC crossbeams and slabs have been assembled in the second basement as a support structure for shafts to receive temporarily the station building. While drilling is going on, RC crossbeams, slabs, walls and steel skeleton pillars were constructed in the order from the third basement to the fourth basement. In the inverted construction method, the self compacting concrete was used in outer walls of the station, part of the inner walls, part of the underground crossbeams, and for filling the concrete filled steel pillars. Amount control of high-performance water reducing agent was very important for change in concrete temperature. 10 figs., 5 tabs.

  10. Building an efficient surgical team using a bench model simulation: construct validity of the Legacy Inanimate System for Endoscopic Team Training (LISETT).

    Science.gov (United States)

    Zheng, B; Denk, P M; Martinec, D V; Gatta, P; Whiteford, M H; Swanström, L L

    2008-04-01

    Complex laparoscopic tasks require collaboration of surgeons as a surgical team. Conventionally, surgical teams are formed shortly before the start of the surgery, and team skills are built during the surgery. There is a need to establish a training simulation to improve surgical team skills without jeopardizing the safety of surgery. The Legacy Inanimate System for Laparoscopic Team Training (LISETT) is a bench simulation designed to enhance surgical team skills. The reported project tested the construct validity of LISETT. The research question was whether the LISETT scores show progressive improvement correlating with the level of surgical training and laparoscopic team experience or not. With LISETT, two surgeons are required to work closely to perform two laparoscopic tasks: peg transportation and suturing. A total of 44 surgical dyad teams were recruited, composed of medical students, residents, laparoscopic fellows, and experienced surgeons. The LISETT scores were calculated according to the speed and accuracy of the movements. The LISETT scores were positively correlated with surgical experience, and the results can be generalized confidently to surgical teams (Pearson's coefficient, 0.73; p = 0.001). To analyze the influences of individual skill and team dynamics on LISETT performance, team quality was rated by team members using communication and cooperation characters after each practice. The LISETT scores are positively correlated with self-rated team quality scores (Pearson's coefficient, 0.39; p = 0.008). The findings proved LISETT to be a valid system for assessing cooperative skills of a surgical team. By increasing practice time, LISETT provides an opportunity to build surgical team skills, which include effective communication and cooperation.

  11. A Real-Time Energy Consumption Simulation and Comparison of Buildings in Different Construction Years in the Olympic Central Area in Beijing

    OpenAIRE

    Chen Xu; Yu Li; Xueting Jin; Liang Yuan; Hao Cheng

    2017-01-01

    Energy consumed the in urban sector accounts for a large proportion of total world delivered energy consumption. Residential building energy consumption is an important part of urban energy consumption. However, there are few studies focused on this issue and that have simulated the energy consumption of residential buildings using questionnaire data. In this research, an eQUEST study was conducted for different residential buildings in the Olympic Central Area in Beijing. Real-time meteorolo...

  12. Implementation of project based learning on the Prakerin subject of vocational high school students of the building engineering to enhance employment skill readiness of graduates in the construction services field

    Science.gov (United States)

    Sugandi, Machmud

    2017-09-01

    Implementation of the Prakerin subject in the field of Building Engineering study program in vocational high school (VHS) are facing many issues associated to non-compliance unit of work in the industry and the expected competencies in learning at school. Project Based Learning (PBL) is an appropriate model learning used for Prakerin subject to increase student competence as the extension of the Prakerin implementation in the construction industry services. Assignments based on the selected project during their practical industry work were given to be completed by student. VHS students in particular field of Building Engineering study program who has been completed Prakerin subject will have a better job readiness, and therefore they will have an understanding on the knowledge, skills, and attitudes and good vision on the construction project in accordance with their experience during Prakerin work in the industry.

  13. Building economics

    DEFF Research Database (Denmark)

    Pedersen, D.O.(red.)

    Publikationen er på engelsk. Den omfatter alle indlæg på det fjerde internationale symposium om byggeøkonomi, der blev arrangeret af SBI for det internationale byggeforskningsråd CIB. De fem bind omhandler: Methods of Economic Evaluation, Design Optimization, Ressource Utilization, The Building...... Market og Economics and Technological Forecasting in Construction. Et indledende bind bringer statusrapporter for de fem forskningsområder, og det sidste bind sammenfatter debatten på symposiet....

  14. 16th Annual School Construction Report, 2011

    Science.gov (United States)

    Abramson, Paul

    2011-01-01

    Almost 73 percent of construction in 2009 was of new school buildings. New school buildings accounted for less than 60 percent of construction spending in 2010, suggesting a shift to using less abundant construction dollars to upgrade and add to existing buildings. While overall construction fell more than $1.8 billion in 2010, spending on…

  15. Retrofitting Listed Buildings

    DEFF Research Database (Denmark)

    Rasmussen, Torben Valdbjørn

    2011-01-01

    . The paper demonstrates measures for the improvement of the thermal insulation of the building with solid brick walls. Durable customised measures are shown. The customised measures are required not to change the overall exterior architecture as the building is considered to contribute to the uniqueness......The paper presents a case study where the energy demand for a listed building constructed in 1900 is reduced. Many older buildings are listed and have restrictions that include the entire building or that include only its exterior. For the building presented, only its exterior facade is listed...

  16. Uniform measurement standard for heat supply in housing and utility building construction. A protocol to compare alternatives for heat supply at building construction sites. Version 3.1; Uniforme Maatlat voor de warmtevoorziening in de woning- en utiliteitsbouw. Een protocol voor het vergelijken van alternatieven voor de warmtevoorziening op bouwlocaties. Versie 3.1

    Energy Technology Data Exchange (ETDEWEB)

    Nuiten, P. [W/E adviseurs, Utrecht (Netherlands); Van der Ree, B. [Primum, Driebergen-Rijsenburg (Netherlands)

    2012-02-15

    The uniform measurement standard is one of the methods that the National Expertise Heat Centre develops to compare the energy efficiency of different techniques (such as heat pumps, heat and cold storage, collective systems, waste heat, combustion of woody biomass, etc.). The development of the uniform standard was started for the residential and utility building construction industry. In the future, the standard calculation method will also be made available for other sectors [Dutch] De uniforme maatlat is 1 van de methoden die het Nationaal Expertisecentrum Warmte ontwikkelt om de energieprestaties van verschillende technieken (zoals warmtepompen, warmte-koudeopslag, collectieve systemen, restwarmte, verbranding van houtachtige biomassa, etc.) goed vergelijkbaar te maken. De ontwikkeling van de uniforme maatlat is gestart voor de woning- en utiliteitsbouw. In de toekomst zal de uniforme maatlat ook voor andere sectoren beschikbaar komen. In deze versie van de uniforme maatlat is aansluiting gezocht bij de kengetallen van de Energieprestatienorm voor Maatregelen op Gebiedsniveau (EMG), zodat de resultaten van de uniforme maatlat in lijn zijn met die van de EMG.

  17. Oral health of building construction workers: an epidemiological approach Saúde bucal de trabalhadores da construção civil: abordagem epidemiológica

    Directory of Open Access Journals (Sweden)

    Nilce Emy Tomita

    2005-03-01

    Full Text Available This cross-sectional study aimed at evaluating the oral health conditions of building construction workers from a city in the mid-west region of São Paulo, Brazil. This study involved 219 male subjects, aged 17 to 72. The definition of a random sample utilized the functional number of each worker as a criterion to the raffle, which took into account all 450 subjects registered in the Working Accidents Prevention Program. The examination of oral health conditions by DMFT index and need of treatment were carried out according to WHO criteria (1997. This paper reports the prevalence of caries according to age, occupation, and educational level. Among the 219 workers examined, the mean DMFT was 16.9. Amongst the younger workers (Este estudo transversal foi delineado para avaliar as condições de saúde bucal de trabalhadores da construção civil em município da região centro-oeste do Estado de São Paulo. Foram examinados 219 indivíduos do sexo masculino, com idades entre 17 e 72 anos. O levantamento das condições bucais foi realizado em processo de amostragem aleatória simples, a partir do total de 450 inscritos na MEGA-SIPAT 2000 (Semana Interna de Prevenção de Acidentes do Trabalho. Foi utilizado o índice CPOD (cárie dentária e necessidade de tratamento odontológico, segundo metodologia proposta pela Organização Mundial da Saúde (1997. Neste estudo, são descritas a prevalência de cárie segundo a idade, ocupação e escolaridade. Entre os 219 trabalhadores examinados, o valor CPOD apurado foi 16,9. Os trabalhadores mais jovens (<25 anos de idade apresentaram média de 21,3 dentes sem necessidade de tratamento, enquanto os mais velhos mostraram necessidades progressivas de tratamento restaurador e reabilitador (p<0,001. Verificou-se índice CPOD de 15,6 para os trabalhadores de áreas administrativas e 21,7 para os mestres-de-obras, sem significância estatística. Houve aumento do índice CPOD segundo a idade, para todos os

  18. Protocol for the building construction process with regard to the implementation trajectory protocols EWN and EUN. Manual for commissioners, contractors, building management offices and energy efficiency standard advisors; Handleiding opnameprotocollen EWN en EUN. Voor opdrachtgevers, aannemers, bouwmanagementbureaus en EPN-adviseurs

    Energy Technology Data Exchange (ETDEWEB)

    Neeleman, J. [DWA installatie- en energieadvies, Duitslandweg 4, Postbus 274, 2410 AG Bodegraven (Netherlands)

    2013-04-15

    In the year 2012 it was foreseen to base the energy label for new buildings on the Energy Efficiency Coefficient (EPC in Dutch). This is a protocol for residential and utility buildings, with the aim to check whether and to what extent buildings were constructed according the EPC and to determine the realized EPC. In order to gain experience with the new protocols and the voluntary ventilation test the Protocol for the Energy Label for New Houses (EWN in Dutch) and the Protocol for the Energy Label for New Utility Buildings (EUN in Dutch) were conducted in 12 newly built housing projects and 5 projects in the utility building sector. With this manual you can realize energy efficient houses and/or utility buildings that meet the standards [Dutch] In het jaar 2012 was voorzien om het nieuwbouwlabel te baseren op de EPC (Energie Prestatie Coefficient). Hiervoor is een opnameprotocol opgesteld voor de woningbouw en de utiliteitsbouw, met als doel te controleren of en in hoeverre conform de EPC is gebouwd en om de gerealiseerde EPC te bepalen. Om ervaring op te doen met de nieuwe opnameprotocollen en de vrijwillige ventilatietoets werden het Opnameprotocol Energielabel Woningen Nieuwbouw (EWN) en Opnameprotocol Energielabel Utiliteitsgebouwen Nieuwbouw (EUN) uitgevoerd bij 12 nieuwbouwprojecten in de woningbouw en 5 projecten in de utiliteitsbouw. Met deze handleiding realiseert u energiezuinige woningen en/of utiliteitsgebouwen die aan de verwachtingen voldoen.

  19. Demosite - Demonstration of the integration of photovoltaic elements in buildings; DEMOSITE. Site de demonstration d'elements de construction photovoltaiques integres au batiment

    Energy Technology Data Exchange (ETDEWEB)

    Roecker, C.; Affolter, P.; Muller, A.N.; Ould-Yenia, A.

    2003-07-01

    This final report for the Swiss Federal Office of Energy summarises Phase 4 of the DEMOSITE project and concludes 10 years of DEMOSITE activities. The DEMOSITE project, started in 1992, demonstrates various ways of integrating photovoltaic elements in buildings by providing stands, pavilions and monitoring facilities at its site in Lausanne, Switzerland. Here, at the Swiss Federal Institute of Technology, roof-mounted installations can be found as well as mock-ups of buildings and roofing systems that also serve as covered parking facilities. The DEMOSITE web site and graphical presentations are also reviewed. Furthermore, the six newest pavilions are presented in detail. The report also presents several sets of data from measurements made on the installations and discusses the dissemination of information and results obtained from the project. A comprehensive annex provides illustrations of examples of building-integrated photovoltaics from around the world.

  20. Management for Construction Materials and Control of Construction Waste in Construction Industry: A Review

    OpenAIRE

    A. A. Gulghane; Prof P. V. Khandve

    2015-01-01

    In recent treads a wide range of building materials is available for the construction of civil engineering structures. The total cost of materials may be up to 60% or more of the total cost incurred in construction project dependent upon the type of project. Effective construction materials management is a key to success for a construction project. Construction waste is another serious problem in construction industry. A large and various types of construction waste with different...

  1. Energetic Refurbishment of Historic Brick Buildings

    DEFF Research Database (Denmark)

    Zagorskas, Jurgis; Mykolas Paliulis, Grazvydas; Burinskiene, Marija

    2013-01-01

    Building standards for energy effectiveness are increasing constantly and the market follows these changes by constructing new buildings in accordance with standards and refurbishment of the existing housing stock. Comprehensive trends in European construction market show tremendous increase in b...

  2. A new paradigm for designing ring construction strategies for green organic synthesis: implications for the discovery of multicomponent reactions to build molecules containing a single ring

    Directory of Open Access Journals (Sweden)

    John Andraos

    2016-11-01

    Full Text Available A new way of developing novel synthesis strategies for the construction of monocyclic rings found in organic molecules is presented. The method is based on the visual application of integer partitioning to chemical structures. Two problems are addressed: (1 the determination of the total number of possible ways to construct a given ring by 2-, 3-, and 4-component couplings; and (2 the systematic enumeration of those possibilities. The results of the method are illustrated using cyclohexanone, pyrazole, and the Biginelli adduct as target ring systems with a view to discover new and greener strategies for their construction using multicomponent reactions. The application of the method is also extended to various heterocycles found in many natural products and pharmaceuticals.

  3. Masonry Construction with drones

    OpenAIRE

    Latteur, Pierre; Goessens, Sébastien; Reniers, Milan; Zhao, Ma; Mueller, Caitlin; IASS Annual Symposium 2016 "Spatial Structures in the 21st Century"

    2016-01-01

    - This paper presents new research in the area of construction of building-scale structures using unmanned aerial vehicles, commonly called drones. The work follows up on a previous paper presented at the 2015 IASS Symposium by Latteur et al. [1], which focused on the feasibility of drone-based construction systems with an emphasis on localization systems and building system units. Since then, the project has continued with a focus on masonry block structures, with new developments in bloc...

  4. Afghan Ministry of Defense Headquarters: $154.7 Million Building Appears Well Built, but Has Several Construction Issues that Should Be Assessed

    Science.gov (United States)

    2016-02-01

    that is expected to provide operation and maintenance for power generation , clean water treatment, wastewater treatment and facility maintenance for... electricity , and if the power is interrupted or the system is not well maintained, the basement could flood, potentially damaging the fire...suppression system and water supply pumps for the building, as well as servers and the switch control panel for the back-up power generators . The other six

  5. "Canteiro Escola"--Uma Resposta da Industria da Construcao no Contexto Produtivo Atual (The "Building Site" School--A Construction Industry Answer in the Actual Productive Context).

    Science.gov (United States)

    Barone, Rosa Elisa; Letelier, Maria Eugenia

    1995-01-01

    Presents examples of the discourse of construction industry personnel involved in workplace basic education in Brazil. Reports on the perspective of the workers/students and on the experiences and the vision of those who implement the educational programs. Identifies the limits of the schooling process and the difficulties inherent in the present…

  6. Using mechanical produced TI-moduls with a favourable facade construction for prefabricated building with light concrete slabs. Final report; Einsatz maschinell gefertigter TWD-Module in einer optimierten Fassadenkonstruktion an Montagebauten mit Leichtbetonelementen. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Russ, C. [Fraunhofer-Institut fuer Solare Energiesysteme (ISE), Freiburg im Breisgau (Germany); Klinkert, V. [Hochschule fuer Technik, Wirtschaft und Kultur Leipzig (F.H.) (Germany)

    2000-07-01

    The existing building stock is characterized by high energy related carbon emissions due to high demands of fossil fuels. The present project investigates how well various solar systems succeeded at reducing the high energy consumption in a retrofitted school building in Wurzen, Germany. The renovated school building is highly representative for Eastern Germany, as it is mainly constructed out of prefabricated building elements. 300 m{sup 2} of transparently insulation were integrated into the Southern facade at comparably moderate system costs since the external shading device for the TI-wall and the windows were integrated into a single unit. Other features of the renovation were improved opaque insulation, new double-glazed windows with a low emissive coat and a new heating system. The new controlling system of the central heating is running on a central computer and is based on indoor room temperatures and the time table of the school. Buildings which are constructed out of prefabricated, light concrete building elements - like the one investigated in this project - require specially construction to attach the TI-moduls to the external building wall. For the investigated building, an energy yield of the TI-facade of 76 kWh/m{sup 2} facade area has been achieved. A solar-thermal system efficiency of 18% was observed and the specific heating demand was reduced from 170 kWh/m{sup 2} to 53 kWh/m{sup 2} after renovation which corresponds to a reduction of 69%. The system costs of the TI-wall consisted of 62% from TI-moduls, 14% for the shading device, 14% for the supporting structure and 10% for the installation. The equivalent energy costs archived in this project, related of the whole renovation, were 0.45 DM/kWh without subsides, and 0.24 DM/kWh with subsides. These results demonstrate, that the energy yields of a transparently insulated solar mass wall can balance out heat transmission and ventilation losses in middle European climate. (orig.) [German] In der

  7. Construction legislation and energy efficiency. A discussion on the covered open spaces for ventilation adopted by the Rio de Janeiro city building code, Brazil; Legislacao edilicia e eficiencia energetica. Uma discussao sobre os vaos de ventilacao adotados pelo codigo de obras do Rio de Janeiro

    Energy Technology Data Exchange (ETDEWEB)

    Pimenta, Gustavo Carvalho; Barroso-Krause, Claudia [Universidade Federal, Rio de Janeiro, RJ (Brazil). Faculdade de Arquitetura e Urbanismo. Programa de Pos-graduacao em Arquitetura]. E-mails: gparj@terra.com.br; bkrause@ufrj.br

    2002-07-01

    This paper analyses, under the energetic efficiency viewpoint, the critical points of the Rio de Janeiro city construction legislation, by the time that decrees the directives for covered open spaces for ventilation in multi-familiar buildings. The paper also demonstrates where and how the building code influences the architectonic project to induce energy consumption not contributing for an efficient architecture.

  8. ATLSS Integrated Building System

    OpenAIRE

    ECT Team, Purdue

    2007-01-01

    The AIBS (ATLSS Integrated Building Systems) program was developed to coordinate ongoing research projects in automated construction and connection systems. The objective of this technology is to design, fabricate, erect, and evaluate cost-effective building systems with a focus on providing a computer integrated approach to these activities.

  9. Development of Ecological Buildings

    Directory of Open Access Journals (Sweden)

    Andrius Keizikas

    2011-04-01

    Full Text Available The article presents research on ecological buildings and their influence on the constructional sphere. The aim of the paper is to reveal the essence of ecological architecture showing substantial progress and its potential to stimulate architectural and technological growth. The article also describes relations between the ideas of ecological buildings and the ‘passive house’ concepts and aspects of development as well as describes the possibilities of improving building sustainability and energy efficiency. Article in Lithuanian

  10. Heritage Building Information Modelling

    OpenAIRE

    Arayici, Y; Mahdjoubi, L.; Counsell, J

    2017-01-01

    This book is about Heritage Building Information Modelling (HBIM). This is a term that has only begun to be used in the latter part of the last decade, since Building Information Modelling (BIM) superseded 3D digital modelling and computer aided design (CAD) as the term generally used to describe the use of information and communication technology (ICT) for the design, construction, and procurement of the modern built environment. It is sometimes also defined as Historic Building Information ...

  11. Expedite Protocol for Construction of Chiral Regioselectively N-Protected Monosubstituted Piperazine, 1,4-Diazepane, and 1,4-Diazocane Building Blocks

    DEFF Research Database (Denmark)

    Crestey, François; Witt, Matthias; Jaroszewski, Jerzy W.

    2009-01-01

    This paper describes the first study of solution-phase synthesis of chiral monosubstituted piperazine building blocks from nosylamide-activated aziridines. The protocol, involving aminolysis of the starting aziridines with ω-amino alcohols and subsequent Fukuyama−Mitsunobu cyclization, offers...... the advantage of mild conditions as well as short reaction times, and it leads to optically pure N-Boc- or N-Ns-protected piperazines. This four-step sequence, requiring only a single final chromatographic purification, was extended to include novel diazepane and diazocane derivatives....

  12. Suitability of building construction materials in short-term energy storage. Part 3. Technical and economical boundary conditions of using phase change materials; Rakennusmateriaalien soveltuvuus lyhytaikaiseen laemmoenvarastointiin. Osa 3. Faasimuutosrakenteiden kaeytoen tekniset ja taloudelliset reunaehdot

    Energy Technology Data Exchange (ETDEWEB)

    Lamberg, P.; Jokisalo, J.; Siren, K.

    2000-07-01

    In our society, increasing environmental pollution and energy need urge researchers to investigate new possibilities for ecological energy consumption. Increasing heat loads in buildings require air-conditioning to ensure the occupants' indoor comfort. By combining a special phase change material to the building material it is possible to the increase heat capacity of the building construction material. Thus in the summer time heat could be stored in the structures of the building at day time and ventilated out at night time. It is possible to decrease the need for cooling or even remove it completely. In the autumn and spring heat could be utilised for heating the room. This report investigated how a phase change material in a building construction material influences indoor temperatures and energy consumption. The economy of PCM structures was also examined. Furthermore, this report studied the fire safety and thermophysical properties of PCM structures. The influence of PCM structures was studied by modelling a LVIS 2000 type office room with normal structures and PCM structures. Concrete and ACO light aggregate concrete elements as examples of building construction materials and salt hydrates and paraffins as examples of phase change materials were studied. Helsinki and Lisbon weather data were used for calculations of the modelled room. The results showed that it is difficult to achieve an improvement to the heat capacity of concrete with a phase change material. The concrete effectively decreases indoor temperatures even without the phase change material. A phase change material in an ACO light aggregate concrete element works well. The heat storing capacity of the ACO element is worse than the heat storing capacity of concrete because of the bigger portion of air inside the ACO element. The maximum indoor temperature drop was achieved with an ACO element when every third hole was filled with salt hydrate. The indoor temperature drop was 3.2 deg C using

  13. Building the future of healthcare. Part III: managing the build. Hospital leaders are moving forward using specialized IT tools to help them manage today's complex new-construction projects.

    Science.gov (United States)

    Lawrence, Daphne

    2010-05-01

    Hospital leaders are increasing making use of project management information systems (PMIS), which are built around documentation and communication of project-specific information. PMIS solutions are being applied to the daunting challenge of managing the large volumes of information involved in new construction projects. Project management tools usually utilize a portal. These tools can interface with administrative systems for best effect. CIOs and other senior executives emphasize that good leadership and execution are fundamental to success, and that automated project management tools are supports, not substitutes for good strategic planning and execution.

  14. Building a Straw Bridge

    Science.gov (United States)

    Teaching Science, 2015

    2015-01-01

    This project is for a team of students (groups of two or three are ideal) to design and construct a model of a single-span bridge, using plastic drinking straws as the building material. All steps of the design, construction, testing and critiquing stages should be recorded by students in a journal. Students may like to include labelled diagrams,…

  15. Farmer innovation driven by needs and understanding: building the capacities of farmer groups for improved cooking stove construction and continued adaptation

    Science.gov (United States)

    Uckert, G.; Hafner, J.; Graef, F.; Hoffmann, H.; Kimaro, A.; Sererya, O.; Sieber, S.

    2017-12-01

    Enhancing food security is one of the main goals of subsistence farmers in Sub-Saharan Africa. This study investigates the implementation of improved loam-made cooking stoves and its contribution to coping and livelihood strategies. Controlled combustion, air as well as smoke flue, and heat insulation facilitate the more efficient fuel consumption of improved cooking stoves compared to traditional stoves—namely three stone fires. Although the majority of small-scale farmers in Sub-Saharan Africa rely on the free public good of firewood, the increasing time needed for collecting firewood implies high opportunity costs for productive members of the family. The primary outcomes for users of improved stoves are reduced fuel consumption, greater safety, saved time, and reduced smoke in the kitchen. The paper illustrates part of the output, outcome, and impact of a participatory action research approach for implementing improved cooking stoves. Special emphasis was put on enabling the villagers to construct their stoves without external support, hence having locally manufactured stoves made of mud, bricks, and dried grass. The impact pathway of improved cooking stoves followed the training-of-trainers concept, where members of the initially established farmer groups were trained to construct stoves on their own. Special focus was given to knowledge exchange and knowledge transfer in order to increase firewood efficiency and overall satisfaction of users of improved cook stoves. Encouraging the members to further adapt the stoves enabled them to scale-up the construction of improved cooked stoves into a business model and increase dissemination while creating income. Although many important benefits, like time and knowledge gain, were identified by the farmers after adoption of the new technology, we found adoption rates differed significantly between regions.

  16. PRACTICAL APPLICATION OF NEW TECHNOLOGIES IN THE COURSE OF CONSTRUCTION OF MODERN BUILDINGS AND STRUCTURES (AS EXPEMPLIFIED BY MOSCOW-CITY INTERNATIONAL BUSINESS CENTRE

    Directory of Open Access Journals (Sweden)

    Sinenko Sergey Anatol'evich

    2012-07-01

    The application of advanced design techniques has proven their efficiency. Advanced methodology of design has reduced the time and cost of design due to repetitive use of the information accumulated in the course of design development, timely information support throughout the whole project development period, and the quality and timeliness of decision-making in terms of technology-related issues. The new design methodology was, to some extent, implemented by means of assurance of the standard functionality of construction-related systems and organizational actions, and through the customization of the system to assure the implementation of both the new functions and the methodology-related solutions.

  17. Building a Circular Future

    DEFF Research Database (Denmark)

    Merrild, Heidi; Guldager Jensen, Kasper; Sommer, John

    2016-01-01

    of the circular strategies is not only in the future. Increased flexibility, optimized operation and maintenance, as well as a healthier building, is low-hanging fruit that can be harvested today. The project’s principles can be implemented in industrialized construction in a large scale today. That is proven......Natural resources are scarce and construction accounts for 40 percent of the material and energy consumption in Europe. This means that a switch to a circular future is necessary. ’Building a Circular Future’ maps out where we are, where we are going, and what is needed for this conversion to take...... on the project’s strategies. The financial result is a profit of DKK 35 million on the structure alone in the demolition of a building built for the cost of DKK 860 million. The total potential for the whole building, calculated in projected material prices, is estimated to be up to 16% of the total construction...

  18. CERN's newest building

    CERN Multimedia

    Anaïs Vernède

    2011-01-01

    With a growing number of users looking for offices, the shortage of space has become acute, particularly for physicists. Building 42, inaugurated on Friday 11 February, offers almost 300 new work-spaces and a particularly pleasant working environment.   Mauro Dell’Ambrogio, the Swiss State Secretary for Education and Research (left), Rolf Heuer , CERN Director-General (centre), and Mark Muller, President of the Government of the Republic and Canton of Geneva and Head of the Department of Construction and Information Technology (right) at the opening of Building 42 on 11 February, 2011.   Construction work for the new Building 42 began in January 2009, thanks to support from the Swiss foundation FIPOI (Fondation des immeubles pour les organisations internationales). After two years of work, the building, an extension of Building 40, is ready to accommodate physicists from around the world who have come to work on the LHC. "We had more than 25 external contractors working...

  19. 高层建筑防排烟系统设计及施工中应注意的问题%The Issues Needing Attention of the Design and the Construction of High-rise Building Smoke Control System

    Institute of Scientific and Technical Information of China (English)

    张喜俊

    2012-01-01

      随着我国现代化建设步伐的加快,越来越多的高层(超高层)建筑如雨后春笋的出现在街头。透过华丽的外表,作为一名建筑施工单位的技术人员,我更关心的是如何确保其使用功能。作为消防系统中的重要组成部分,防排烟系统功能的优劣直接关系到人员的生命安全,特别是高层建筑,楼层高、人员密集、疏散难度大,保证疏散通道的畅通尤为重要。本文以中国证券大厦在防排烟系统中设计与施工的案例,详细阐述防排烟系统在设计和施工中要关注的技术要点。%  With the accelerated pace of China's mod ernization, more and more high-level (super senior) building mushroomed appeared in the streets.as a Technic al staff of the construction unit ,through the gorgeous l ooks, I am more concerned about is how to ensure its use.As an important part of the fire protection system, the pros and cons of the smoke control system is directly related to the lives and safety of the staff, especially for those high-rise building with high floor, crowded peop le and more evacuation difficulty , so it is particularly i mportant to ensure the smooth flow of evacuation rout es.Taking the design and construction of the smoke control system of China Securities Building as an example , this paper elaborates the technical points to should be concer ned in the design and the construct on of smoke control system.

  20. Transport of the first half of the CMS hadronic forward calorimeter (HF) from building 186 (CERN Meyrin site) to the CMS construction hall at point 5, Cessy, France.

    CERN Multimedia

    Florelle Antoine

    2006-01-01

    The two halves of the Forward Hadronic Calorimeter (HF) were transported from the CERN Meyrin site to the surface assembly hall at LHC Point 5 in Cessy, France, during the first part of July. Transporting these 300 tonne objects involved the construction around them of a 65-metre long trailer, simultaneously pushed and pulled by two trucks at either end. The main road between St. Genis and Cessy was closed during these operations and a police escort was provided for the ~5 hour journeys. The two HF halves will be the first major elements to be lowered by the gantry crane into the underground experimental cavern around the end of July or beginning of August.

  1. Transport of the Hadronic Forward (HF) calorimeter from building 186 (CERN Meyrin site) to the CMS construction hall at point 5, Cessy, France.

    CERN Multimedia

    Florelle Antoine

    2006-01-01

    The two halves of the Forward Hadronic Calorimeter (HF) were transported from the CERN Meyrin site to the surface assembly hall at LHC Point 5 in Cessy, France, during the first part of July. Transporting these 300 tonne objects involved the construction around them of a 65-metre long trailer, simultaneously pushed and pulled by two trucks at either end. The main road between St. Genis and Cessy was closed during these operations and a police escort was provided for the ~5 hour journeys. The two HF halves will be the first major elements to be lowered by the gantry crane into the underground experimental cavern around the end of July or beginning of August.

  2. Classification of Building Object Types

    DEFF Research Database (Denmark)

    Jørgensen, Kaj Asbjørn

    2011-01-01

    be managed by software applications and on the basis of building models. Classification systems with taxonomies of building object types have many application opportunities but can still be beneficial in data exchange between building construction partners. However, this will be performed by new methods...... and in strong connection with databases holding a wide range of object types....

  3. Optimizing the use of video-tapes of clinical sessions: the data-mining approach for scale construction and theory building for bereaved persons in Hong Kong.

    Science.gov (United States)

    Chow, Amy Yin Man

    2010-01-01

    Video-taping clinical sessions is a common practice among social workers so that the tapes may be used for clinical supervision and reviewed with the individuals or families involved. They are usually underused for research purposes. This article reports on an innovative research method using such tapes as a basis for clinical data mining to explore the bereavement experience of Chinese people in Hong Kong. Using this data, a rich item pool, containing both negative and positive reactions, was generated to allow the development of a culturally relevant measurement tool of grief reactions. The data also facilitated theory building in the area of grief and bereavement. This study extended the use of video-tapes in clinical sessions for research purposes and helped to collect reliable and timely data in a non-intrusive way. It has also advanced the use of quantitative data in the clinical data-mining approach. The study encouraged collaboration between clinicians and researchers to develop knowledge and skills about their special target group of clients.

  4. ASPECTS OF THE INFLUENCE ASSESSMENT OF THE NEW CONSTRUCTION DURING THE RECONSTRUCTION OF URBAN TERRITORY AREAS IN THE DENSE BUILDING CONDITIONS

    Directory of Open Access Journals (Sweden)

    Dmitry Prusov

    2013-10-01

    Full Text Available Normal 0 false false false MicrosoftInternetExplorer4 The scientific substantiation concept has been considered for the urban development and territorial planning reconstruction principles of the urban area sections with dense building and difficult engineering-geological conditions for scientific and technical support of all reconstruction processes and recommendations elaboration for a safe and balanced development of built-up territories and more efficient use of housing estates in the present social and economic conditions. /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Обычная таблица"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;}

  5. Evaluation de la vulnérabilité sismique des constructions en béton armé en vue de leur réhabilitation Evaluating seismic vulnerability of reinforced concrete buildings in view of their rehabilitation

    Directory of Open Access Journals (Sweden)

    Almansa F. Lopez

    2012-09-01

    Full Text Available Dans ce travail, une méthodologie simplifiée a été proposée afin d’évaluer la vulnérabilité sismique des bâtiments en béton armé. La démarche s’appuie sur une surface de réponse obtenue à partir de calculs pushover du bâtiment. L’analyse pushover a été effectuée sous le logiciel ZeusNL. Une étude de cas a été réalisée sur un bâtiment type en utilisant un plan d’expérience factoriel complet construit sur les trois paramètres de conception comprenant la résistance caractéristique du béton, la section moyenne de béton des poteaux et poutres et leurs armatures longitudinales. L’analyse de variance effectuée sur les résultats obtenus a permis de déterminer l’effet de chaque paramètre sur la performance sismique du bâtiment. Les résultats ont montré que la section moyenne des coffrages et leurs ferraillages contrôlent de manière prépondérante la capacité sismique du bâtiment vis-à-vis des états limites considérés. L’optimisation de la réhabilitation sismique a été alors proposée. In this work, a simplified methodology was proposed in order to evaluate seismic vulnerability of reinforced concrete buildings. The approach is founded on response surface obtained through pushover calculations of the building. Pushover analysis was performed under ZeusNL software. A case study was carried out on a typical building by using full factorial design of experiment table constructed on the three design parameters that include concrete resistance, the average concrete section of beams and columns and their longitudinal reinforcements. Analysis of variance performed on the obtained results enabled determining the effect of each parameter on seismic performance of the building. It was shown that concrete average section and reinforcements control preponderantly seismic capacity of the building with regards to the considered limit states. Optimisation of seismic rehabilitation was then proposed.

  6. Building performance modelling for sustainable building design

    Directory of Open Access Journals (Sweden)

    Olufolahan Oduyemi

    2016-12-01

    The output revealed that BPM delivers information needed for enhanced design and building performance. Recommendations such as the establishment of proper mechanisms to monitor the performance of BPM related construction are suggested to allow for its continuous implementation. This research consolidates collective movements towards wider implementation of BPM and forms a base for developing a sound BIM strategy and guidance.

  7. Construction of Zeolite-Like Cluster Organic Frameworks from 3 d-4 d/3 d-3 d Heterometallic Supertetrahedral Secondary Building Units: Syntheses, Structures, and Properties.

    Science.gov (United States)

    Lin, Li-Dan; Deng, Chu-Chu; Zhao, D; Li, Xin-Xiong; Zheng, Shou-Tian

    2018-01-02

    Two zeolite-like cluster organic frameworks based on Cd-Cu/Mn-Cu heterometallic supertetrahedral secondary building units have been successfully constructed under solvothermal conditions, namely, Cu[Cd 4 Cu 6 (L) 4 (H 2 O) 18 ](Ac) 9 ⋅DMA⋅3 H 2 O (1), and Cu[Mn 4 Cu 6 (L) 4 (Ac) 3 (H 2 O) 12 ](Ac) 6 ⋅CH 3 CN⋅13 H 2 O (2), where H 3 L=2-(hydroxymethyl)-2-(pyridin-4-yl)-1,3-propanediol, Ac=CH 3 COO - , DMA=N,N'-dimethylacetamide. Single-crystal X-ray structural analysis reveals that both 1 and 2 exhibit 3-dimensional zeolite-like architectures with similar 4-connected components, but possess definitely different topologies of diamondoid (dia) and uncommon lonsdaleite (lon), respectively. 1 and 2 represent the first cases of zeolite-like cluster organic frameworks containing Cd-Cu/Mn-Cu heterometallic supertetrahedral secondary building units. Furthermore, the magnetic properties and porous nature of 1 and 2 were also studied. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

  8. Building the green way.

    Science.gov (United States)

    Lockwood, Charles

    2006-06-01

    Just five or six years ago, the term "green building" evoked visions of barefoot, tie-dyed, granola-munching denizens. There's been a large shift in perception. Of course, green buildings are still known for conserving natural resources by, for example, minimizing on-site grading, using alternative materials, and recycling construction waste. But people now see the financial advantages as well. Well-designed green buildings yield lower utility costs, greater employee productivity, less absenteeism, and stronger attraction and retention of workers than standard buildings do. Green materials, mechanical systems, and furnishings have become more widely available and considerably less expensive than they used to be-often cheaper than their standard counterparts. So building green is no longer a pricey experiment; just about any company can do it on a standard budget by following the ten rules outlined by the author. Reliable building-rating systems like the U.S. Green Building Council's rigorous Leadership in Energy and Environmental Design (LEED) program have done much to underscore the benefits of green construction. LEED evaluates buildings and awards points in several areas, such as water efficiency and indoor environmental quality. Other rating programs include the UK's BREEAM (Building Research Establishment's Environmental Assessment Method) and Australia's Green Star. Green construction is not simply getting more respect; it is rapidly becoming a necessity as corporations push it fully into the mainstream over the next five to ten years. In fact, the author says, the owners of standard buildings face massive obsolescence. To avoid this problem, they should carry out green renovations. Corporations no longer have an excuse for eschewing environmental and economic sustainability. They have at their disposal tools proven to lower overhead costs, improve productivity, and strengthen the bottom line.

  9. Building America

    Energy Technology Data Exchange (ETDEWEB)

    Brad Oberg

    2010-12-31

    Builders generally use a 'spec and purchase' business management system (BMS) when implementing energy efficiency. A BMS is the overall operational and organizational systems and strategies that a builder uses to set up and run its company. This type of BMS treats building performance as a simple technology swap (e.g. a tank water heater to a tankless water heater) and typically compartmentalizes energy efficiency within one or two groups in the organization (e.g. purchasing and construction). While certain tools, such as details, checklists, and scopes of work, can assist builders in managing the quality of the construction of higher performance homes, they do nothing to address the underlying operational strategies and issues related to change management that builders face when they make high performance homes a core part of their mission. To achieve the systems integration necessary for attaining 40% + levels of energy efficiency, while capturing the cost tradeoffs, builders must use a 'systems approach' BMS, rather than a 'spec and purchase' BMS. The following attributes are inherent in a systems approach BMS; they are also generally seen in quality management systems (QMS), such as the National Housing Quality Certification program: Cultural and corporate alignment, Clear intent for quality and performance, Increased collaboration across internal and external teams, Better communication practices and systems, Disciplined approach to quality control, Measurement and verification of performance, Continuous feedback and improvement, and Whole house integrated design and specification.

  10. Construction and Demolition Waste

    DEFF Research Database (Denmark)

    Christensen, Thomas Højlund; Andersen, L.

    2011-01-01

    Construction and demolition waste (C&D waste) is the waste generated during the building, repair, remodeling or removal of constructions. The constructions can be roads, residential housing and nonresidential buildings. C&D waste has traditionally been considered without any environmental problems...... and has just been landfilled. However, in recent years more focus has been put on C&D waste and data are starting to appear. One reason is that it has been recognized that C&D waste may include many materials that are contaminated either as part of their original design or through their use and therefore...... should be managed accordingly. Another reason is that it has been documented that a large fraction of C&D waste (about 90 %) can be easily recycled and thus can conserve landfill capacity. C&D waste may conveniently be divided into three subcategories: Buildings, roads and excavations. This chapter...

  11. Modeling of the ecological balance of construction and demolition facilities

    National Research Council Canada - National Science Library

    Tskhovrebov Eduard Stanislavovich

    2017-01-01

    ...: beginning with the extraction of building materials and ending with the commissioning of completed construction projects, demolition of buildings, installations, and facilities with no life cycles...

  12. Application of BIM Technology in Prefabricated Buildings

    Science.gov (United States)

    Zhanglin, Guo; Si, Gao; Jun-e, Liu

    2017-08-01

    The development of fabricated buildings has become the main trend of the developm ent of modern construction industry in China. As the main tool of building information, BIM (b uilding information modeling) has greatly promoted the development of construction industry. Based on the review of the papers about the fabricated buildings and BIM technology in recent years, this paper analyzes the advantages of fabricated buildings and BIM technology, then exp lores the application of BIM technology in fabricated buildings. It aims to realize the rationaliz ation and scientification of project lifecycle management in fabricated construction project, and finally form a coherent information platform in the fabricated building.

  13. Building Services Systems

    DEFF Research Database (Denmark)

    Zinzi, Michele; Romeo, Carlo; Thomsen, Kirsten Engelund

    2015-01-01

    This guideline on Building Services Systems is one of four guidelines produced by the School of the Future project. The other three guidelines cover: Building Construction Elements, Improved Indoor Environmental Quality and Concepts for Zero Emission Schools. This guideline consists of the descri......This guideline on Building Services Systems is one of four guidelines produced by the School of the Future project. The other three guidelines cover: Building Construction Elements, Improved Indoor Environmental Quality and Concepts for Zero Emission Schools. This guideline consists...... of the description of 5 main technologies: condensing boilers, heat pumps, ventilation systems, lighting and photovoltaic systems. For each technology chapter there is the same content list: an introduction, a brief technology description, some advantages and disadvantages, market penetration and utilisation, energy...

  14. Construct Demo Input Deck

    Science.gov (United States)

    2010-06-01

    designed to assist new users in understanding the ConstructML and how it can be used in order to build a successful simulation. Construct is an...agents will not gain transactive memory about others performing the same task. During the simulation, an agent’s success in performing a binary task can...agents more or less likely to interact in order to capture differences in factors such as seniority, career type, introversion , or other factors which

  15. Measurement in Sustainable Building

    DEFF Research Database (Denmark)

    Hale, Lara

    2018-01-01

    of facing the disparity between the measurement of quantities and the experience of quality, seeks to bridge the gap with thorough evaluation programs and engagement with market and sociological research. Whereas well-being is not technically measureable, these evaluations lead to improvement of the metrics......Measurement is a necessary aspect of planning and constructing buildings. However, recent attempts to integrate the social dimension of sustainable building into building design and specifications demand measurement of non-technical qualities, such as well-being. The Active House Alliance, in lieu...

  16. Berkeley Lab to Help Build Straw Bale Building

    Energy Technology Data Exchange (ETDEWEB)

    Worsham, S.A.; Van Mechelen, G.

    1998-12-01

    The Shorebird Environmental Learning Center (SELC) is a new straw bale building that will showcase current and future technologies and techniques that will reduce the environmental impacts of building construction and operations. The building will also serve as a living laboratory to test systems and monitor their performance. The project will be the model for a building process that stops using our precious resources and reduces waste pollution. The rice straw that will be used for the bale construction is generally waste material that is typically burned--millions of tons of it a year--especially in California's San Joaquin Valley. Buildings have significant impacts on the overall environment. Building operations, including lighting, heating, and cooling, consume about 30% of the energy used in the United States. Building construction and the processes into making building materials consume an additional 8% of total energy. Construction also accounts for 39% of wood consumed in the U S, while 25% of solid waste volume is construction and demolition (C &D) debris. The SELC will incorporate a variety of materials and techniques that will address these and other issues, while providing a model of environmentally considered design for Bay Area residents and builders. Environmental considerations include energy use in construction and operations, selection of materials, waste minimization, and indoor air quality. We have developed five major environmental goals for this project: (1) Minimize energy use in construction and operations; (2) Employ material sources that are renewable, salvaged, recycled, and/or recyclable; (3) Increase building lifespan with durable materials and designs that permit flexibility and modification with minimal demolition; (4) Reduce and strive to eliminate construction debris; and (5) Avoid products that create toxic pollutants and make a healthy indoor environment.

  17. DGNB Building Certification Companion

    DEFF Research Database (Denmark)

    Møller, Renate Skovgaard; Rhodes, Michael K.; Larsen, Tine Steen

    2017-01-01

    In the construction industry, the popularity of sustainability and its benefits have been on the rise in recent years. Alas, with various building sustainability assessment schemes on the market, there is still no single general method for a comprehensive and inclusive design and building process...... for sustainable buildings. The literature describes several barriers of entry preventing actors in the industry from seeking sustainability certifications and prioritizing design methods, supporting sustainability in greater numbers. In the newly developed tool, “DGNB building certification companion: Sustainable...... Tool for Assessment, Planning, Learning, and Engaging (STAPLE)”, a new Excel-based, interactive, and iterative education focused platform is introduced, intended to engage dialog among stakeholders, building owners, and decision makers, and the assigned group team leaders, based on the five DGNB topics...

  18. Sofrimento psíquico no trabalho e estratégias defensivas dos operários terceirizados da construção civil Psychic suffering at work and defensive strategies of outsourced worker at building constructions

    Directory of Open Access Journals (Sweden)

    Paloma Castro da Rocha Barros

    2003-06-01

    Full Text Available Este artigo investiga as estratégias defensivas contra o sofrimento utilizadas pelos trabalhadores terceirizados de uma construtora em Brasília, utilizando como referencial teórico-metodológico a Psicodinâmica do Trabalho. Realizam-se entrevistas coletivas semi-estruturadas com 20 trabalhadores, distribuídos em quatro grupos com cinco participantes cada um, submetidas à análise de conteúdo. Os resultados apontam que os trabalhadores encontram-se vulneráveis e inseguros diante do modelo de produção terceirizado, que negligencia seus direitos e exige alta produtividade. O sofrimento torna-se visível por meio de indicadores de mal-estar tais como desgaste físico e mental e falta de reconhecimento, que é enfrentado mediante estratégias de mediação defensivas de negação e controle. O pressuposto inicial de que o modelo de produção baseado nos princípios tayloristas e na acumulação flexível de capital, preponderante no setor da construção civil, potencializa o sofrimento no contexto de produção é, então, confirmado.This paper investigated defensive strategies to confront suffering used by outsourced workers of building constructions builders in Brasília, having as theoretic-methodological reference the Psychodynamics of Work. Semi structured collective interview were undertaken with 20 workers, distributed in four groups with five participants each one. The interview was submitted to content analysis. The results show the workers presenting vulnerability and insecurity to face outsourced production models that would disregard their rights and demand high productivity. The suffering becomes visible by mal-being symptoms indicated as physic and mental stress and lack of recognition, that is copping by negation and control as defensive mediation strategies. The results confirm the initial presuppositions that the production model based on Taylorist principles and flexible accumulation of capital, predominant at the

  19. PRODUCTION CAPABILITIES EFFICIENCY PREFABRICATION ERECTION OF BUILDINGS

    Directory of Open Access Journals (Sweden)

    SOKOLOV I. A.

    2015-12-01

    Full Text Available Formulation of the problem. the largest reserves of increase of efficiency of building production concluded in the decision of problems of ensuring compliance with the technological properties of space-planning and constructive decisions of buildings organizational and technological conditions of manufacturing processes. Tendencies of development of the society determined the growth in construction, complexity of design rhenium building and makes it necessary to reduce the time of construction of buildings and reduce the cost of construction and installation works. In recent years, the architectural and compositional solutions constructed buildings are increasingly conflict with organizational, technological and technical capacity building organizations. This problem is solved by the improvement and development of new technologies of building production, the use of more modern construction machines and mechanisms. The implementation of the tasks can be solved by creating a space-planning and constructive decisions of buildings corresponding possibilities of building organizations and the creation of fundamentally new technologies. Currently, there is no single comprehensive approach allows to establish the extent to which space-constructive decisions of buildings technological possibilities of building production. Imbalance intentions and capabilities results in a significant increase in financial expenses for the construction of the building. The purpose of the article. It is necessary to propose a method of assessing the level of technological prefabrication construction of buildings, the application of which will provide an opportunity to improve the full process of erection of the building and, as a consequence, increase its efficiency by increasing the extent to which the technological properties of space-planning and constructive decisions of buildings organizational and technological conditions of manufacturing processes, pogruzki

  20. Niche construction in evolutionary theory: the construction of an ...

    Indian Academy of Sciences (India)

    Navya

    2017-04-03

    . Laland et al. .... architects and their style of architecture exert great influence on the final form that the building takes. Laland's (2015) ..... Hui C. and Yue D. 2005 Niche construction and polymorphism maintenance in.

  1. Designing for second generation value - future proofing constructions

    DEFF Research Database (Denmark)

    Lindhard, Søren Munch; Wandahl, Søren

    2012-01-01

    Lifecycle consideration in terms of environmental impact and total cost of buildings attract increased focus in construction. Here, total cost and environmental impact both involves: erection, operation, maintenance, demolition, and disposal of the building. The mindset of Lean Construction...

  2. Designing for second generation value – Future proofing construction

    DEFF Research Database (Denmark)

    Lindhard, Søren; Wandahl, Søren

    2012-01-01

    Lifecycle consideration in terms of environmental impact and total cost of buildings attract increased focus in construction. Here total cost and environmental impact both involves: erection, operation, maintenance, demolition, and disposal of the building. The mindset of Lean Construction...

  3. Digital Handover of Data from Building Projects to Building Operation

    DEFF Research Database (Denmark)

    Jensen, Per Anker

    2006-01-01

    and construction and on the other side in building opera-tion and facilities management. In Denmark the government has launched a development program called Digital Construction and one of the projects concerns specifying require-ments for building clients in relation to digital handover of data from construction......The development of computer based facilities management has not developed as rapid as expected by most professionals, mainly due to lack of interoperability between IT sys-tems. This is particularly a problem with the transfer of data between IT systems used on the one side in building design...... pro-jects to building operation. This project started in 2004 with research and analyses fol-lowed by development of a proposal for client requirements and in 2005 a first test on a real construction project has been carried out. After revision of the requirements a second test will be started early...

  4. Construction Management: Planning Ahead.

    Science.gov (United States)

    Arsht, Steven

    2003-01-01

    Explains that preconstruction planning is essential when undertaking the challenges of a school building renovation or expansion, focusing on developing a detailed estimate, creating an effective construction strategy, conducting reviews and value-engineering workshops, and realizing savings through effective risk analysis and contingency…

  5. Employment and winter construction

    DEFF Research Database (Denmark)

    Hansen, Ernst Jan de Place; Larsen, Jacob Norvig

    2011-01-01

    hemisphere. Can climatic conditions alone explain the sizeable difference in reduction in building activity in the construction sector in European countries in the winter months, or are other factors such as technology, economic cycles and schemes for financial compensation influential as well? What...... of contracts for workers is more likely to explain differences in seasonal activity than climatic or technological factors....

  6. CRITICAL EVENTS IN CONSTRUCTION PROCESS

    DEFF Research Database (Denmark)

    Jørgensen, Kirsten; Rasmussen, Grane Mikael Gregaard

    2009-01-01

    the building process and includes all participants in the construction project. A general result from the analysis was that critical events that occurred when the site was not using Lean Construction evolved much longer than critical events that occurred in the period when Lean Construction was used. Another......Function failures, defects and poor communication are major problems in the construction industry. These failures and defects are caused by a row of critical events in the construction process. The purpose of this paper is to define “critical events” in the construction process and to investigate...

  7. Protection of third parties. The protection of third parties affected by building or plant construction permits under the public construction law, the emission control law, or the atomic energy law. Drittschutz: Der Rechtsschutz Drittbetroffener gegen Bau- und Anlagengenehmigungen im oeffentlichen Baurecht, Immissionsschutzrecht und Atomrecht

    Energy Technology Data Exchange (ETDEWEB)

    Koenig, S.

    1993-01-01

    Building construction permits just like plant construction permits under the Federal Emission Control Act or the Atomic Energy Act are typical cases representing the administrative order with a dual effect, or an effect on third parties: decisions supporting the interests of the project owner always affect third parties. Third party protection therefore is a major topic of public construction law or the environmental protection law to be applied to industrial installations. Although actions brought by third parties have become something ordinary for the administrative courts, substantive third party protection continues to pose specific problems. The book in hand develops and explains a way out of the dilemma created by third party protection. The solutions presented are founded on a sound dogmatic basis and take into account the Federal Constitutional Court's rulings in matters of civil rights. The starting point adopted by the authors is the third party rights warranting protection, with the objective protection provided for by the law in general gaining effect as subjective rights as far as the protection is based on the civil rights of the constitution. The scope of protection affordable depends on the individual case and the reconciliation of terests of all parties concerned. The problem solutions set forth very extensively rely on the jurisdiction in matters of third party protection and on approaches published in the relevant literature, so that the book also may serve as a guide to current practice and a helpful source of reference for readers looking for information about the issue of third party protection. (orig./HP)

  8. Straw insulated buildings. Nature building materials; Strohgedaemmte Gebaeude. Naturbaustoffe

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2013-06-01

    Straw is one of the major agricultural by-products and is mainly used as litter in animal husbandry and to compensate the balance of humus. A relatively recent development is the use of straw bales for the construction of buildings. The brochure under consideration documents the technical development of straw construction in Germany. Possibilities of the use of straw in single family homes up to commercial buildings are described.

  9. How to use Building Information Systems for a transition towards Sustainable Building Operation

    NARCIS (Netherlands)

    Itard, L.C.M.; Joosstens, F; Heiselberg, Per Kvols

    2016-01-01

    BIM Building Information Model or Modelling connects many different information
    systems from various actors during the building construction process with each
    other in one easily accessible and understandable model. BIM assures an effective
    and efficient building construction process by

  10. SYSTEM OF STANDARTIZATION OF CONSTRUCTION OPERATIONS ARRANGEMENT

    Directory of Open Access Journals (Sweden)

    Oleynik Pavel Pavlovich

    2012-10-01

    Full Text Available In the proposed article, management of construction operations is represented as a multi-level system; it is considered with the framework of projects including new construction, restructuring and overhaul of buildings and structures. The system of management of construction operations is to be composed of the following three constituent parts. They include a construction and assembling entity, project and operations, and a procurement base. Such matters as the quality of construction products, purchase (lease of building machinery and vehicles are incorporated into the level of the construction and assembling entity. The project level comprises such components of construction operations management as pre-construction preparation of a project, methods and forms of construction management, preparatory works, management of construction activities, real-time operations control, construction quality control, etc. The level of operations and the procurement base covers the needs for materials and equipment, their purchase and procurement, as well as the warehouse management. The main elements of the standardization system are identified. Standards of construction operations management are explained, including 1. General Provisions; 2. Preparation and performance of construction and assembling works; 3. New construction. Building site organization; 4. Demolition (dismantling of buildings and structures; 5. Rules of preparation for acceptance and commissioning of completed residential buildings. The prospects for the further development of the system of standardization of construction operations management are outlined

  11. Moisture conditions in buildings

    DEFF Research Database (Denmark)

    Rode, Carsten

    2012-01-01

    Growth of mould requires the presence of moisture at a certain high level. In a heated indoor environment such moisture levels occur only if there is a reason for the moisture supply. Such moisture can come from the use of the building, because of malfunctioning constructions, or it can...

  12. Checklist for Physics Buildings.

    Science.gov (United States)

    American Inst. of Physics, New York, NY.

    This booklet was written to encourage close communication between architect and client and to assist planners of physics facilities in providing important features of building design. Some 300 items considered important are listed Also included is a list of 17 references related to facility construction (many available free of charge. A companion…

  13. Environmental indicators for buildings

    DEFF Research Database (Denmark)

    Dammann, Sven

    Construction Of Technology theory as a frame for the studies. It is concluded that it is not possible to develop a common set of indicators that all the central actors in the building sector find acceptable - at least not in a near future. Different sets of solutions are, however, outlined in the thesis......, creating an essential basis for future indicator development....

  14. Environmental indicators for buildings

    DEFF Research Database (Denmark)

    Dammann, Sven

    2004-01-01

    Construction Of Technology theory as a frame for the studies. It is concluded that it is not possible to develop a common set of indicators that all the central actors in the building sector find acceptable - at least not in a near future. Different sets of solutions are, however, outlined in the thesis......, creating an essential basis for future indicator development....

  15. Constructed Wetlands

    Science.gov (United States)

    these systems can improve water quality, engineers and scientists construct systems that replicate the functions of natural wetlands. Constructed wetlands are treatment systems that use natural processes

  16. Construction time of PWRs

    Energy Technology Data Exchange (ETDEWEB)

    Carajilescov, Pedro; Moreira, Joao M.L., E-mail: pedro.carajilescov@ufabc.edu.b, E-mail: joao.moreira@ufabc.edu.b [Universidade Federal do ABC (UFABC), Santo Andre, SP (Brazil). Center of Engineering, Modeling and Applied Social Sciences

    2011-07-01

    The cost of electricity generated by nuclear power is greatly affected by the capital cost, which is dependent on the construction time of the plant. This work analyses the construction time of PWRs in several countries with different market structure and licensing experience. Countries which succeeded to establish a more collaborative environment among utilities, constructors, regulators, and energy planners through effective partnerships were able to build PWRs in shorter times. The construction time in Germany, France and Russia was around 80 months and in Japan, about 60 months. The envelope of 95% of the cases includes a range between 50 and 250 months of construction time. The evaluations show that construction time of PWRs has been longer for countries that did not hold the technology to build their own reactors, and depended on contracts with foreign suppliers. The nominal power of the reactors was considered a measure of plant size, technology complexity and standardization. Countries with standardized reactor designs (France, Japan and Russia) were able to build plants in shorter times. (author)

  17. Buildings for advanced technology

    CERN Document Server

    Teague, E; Murday, James

    2015-01-01

    This book deals with the design and construction of buildings for nanoscale science and engineering research. The information provided in this book is useful for designing and constructing buildings for such advanced technologies as nanotechnology, nanoelectronics and biotechnology. The book outlines the technology challenges unique to each of the building environmental challenges outlined below and provides best practices and examples of engineering approaches to address them: • Establishing and maintaining critical environments: temperature, humidity, and pressure • Structural vibration isolation • Airborne vibration isolation (acoustic noise) • Isolation of mechanical equipment-generated vibration/acoustic noise • Cost-effective power conditioning • Grounding facilities for low electrical interference • Electromagnetic interference (EMI)/Radio frequency interference (RFI) isolation • Airborne particulate contamination • Airborne organic and chemical contamination • Environment, safety a...

  18. Irregular Shaped Building Design Optimization with Building Information Modelling

    Directory of Open Access Journals (Sweden)

    Lee Xia Sheng

    2016-01-01

    Full Text Available This research is to recognise the function of Building Information Modelling (BIM in design optimization for irregular shaped buildings. The study focuses on a conceptual irregular shaped “twisted” building design similar to some existing sculpture-like architectures. Form and function are the two most important aspects of new buildings, which are becoming more sophisticated as parts of equally sophisticated “systems” that we are living in. Nowadays, it is common to have irregular shaped or sculpture-like buildings which are very different when compared to regular buildings. Construction industry stakeholders are facing stiff challenges in many aspects such as buildability, cost effectiveness, delivery time and facility management when dealing with irregular shaped building projects. Building Information Modelling (BIM is being utilized to enable architects, engineers and constructors to gain improved visualization for irregular shaped buildings; this has a purpose of identifying critical issues before initiating physical construction work. In this study, three variations of design options differing in rotating angle: 30 degrees, 60 degrees and 90 degrees are created to conduct quantifiable comparisons. Discussions are focused on three major aspects including structural planning, usable building space, and structural constructability. This research concludes that Building Information Modelling is instrumental in facilitating design optimization for irregular shaped building. In the process of comparing different design variations, instead of just giving “yes or no” type of response, stakeholders can now easily visualize, evaluate and decide to achieve the right balance based on their own criteria. Therefore, construction project stakeholders are empowered with superior evaluation and decision making capability.

  19. Operations management for construction

    CERN Document Server

    March, Chris

    2009-01-01

    Students studying construction management and related subjects need to have a broad understanding of the major aspects of controlling the building processes. Operations Management for Construction is one of three textbooks (Business Organisation, Operations Management and Finance Control) written to systematically cover the field. Focusing on construction sites and operations which are challenging to run, Chris March explores issues such as the setting up of the site, the deciding of the methodology of construction, and the sequence of work and resourcing. As changing and increasing regulations affect the way sites are managed, he also considers the issues and methods of successful administering, safety, quality and environment. Finally, the contractor's responsibility to the environment, including relationships with third parties, selection of materials, waste management and sustainability is discussed. Chris March has a wealth of practical experience in the construction industry, as well as considerable exp...

  20. Building calculations

    DEFF Research Database (Denmark)

    Jensen, Bjarne Christian; Hansen, Svend Ole

    Textbook on design of large panel building including rules on robustness and a method for producing the Statical documentattion......Textbook on design of large panel building including rules on robustness and a method for producing the Statical documentattion...

  1. Building typology Schleswig-Holstein. Compendium for economic and energy efficient retrofitting of different classes of year of construction; Gebaeudetypologie Schleswig-Holstein. Leitfaden fuer wirtschaftliche und energieeffiziente Sanierungen verschiedener Baualtersklassen

    Energy Technology Data Exchange (ETDEWEB)

    Walberg, Dietmar (ed.)

    2012-06-15

    This brochure provides a realistic picture of the residential building stock in Schleswig-Holstein (Federal Republic of Germany) as well as an overview about the energy performance of a building. The planners receive proven information and examples. Commercially reasonable measures for the energy rehabilitation are presented. Simultaneously, the brochure supplies benchmarks in order to verify the statements of a concrete building.

  2. The US Army Corps of Engineers Roadmap for Life-Cycle Building Information Modeling (BIM). Supplement 2 - BIM Implementation Guide for Military Construction (MILCON) Projects Using the Bentley Platform

    Science.gov (United States)

    2012-11-01

    Building Information Modeling ( BIM ...12-2, Supplement 2 November 2012 The US Army Corps of Engineers Roadmap for Life-Cycle Building Information Modeling ( BIM ) Supplement 2 – BIM ...39180 ERDC SR-12-2, Supplement 2 (November 2012) ii Abstract Building Information Modeling ( BIM ) technology has rapidly gained ac-

  3. The US Army Corps of Engineers Roadmap for Life-Cycle Building Information Modeling (BIM). Supplement 1- BIM Implementation Guide for Military Construction (MILCON) Projects Using the Autodesk Platform

    Science.gov (United States)

    2012-11-01

    Building Information Modeling ( BIM ...12-2, Supplement 1 November 2012 The US Army Corps of Engineers Roadmap for Life-Cycle Building Information Modeling ( BIM ) Supplement 1 – BIM ...ERDC SR-12-2, Supplement 1 (November 2012) ii Abstract Building Information Modeling ( BIM ) technology has rapidly gained ac- ceptance throughout

  4. Solar building

    OpenAIRE

    Zhang, Luxin

    2014-01-01

    In my thesis I describe the utilization of solar energy and solar energy with building integration. In introduction it is also mentioned how the solar building works, trying to make more people understand and accept the solar building. The thesis introduces different types of solar heat collectors. I compared the difference two operation modes of solar water heating system and created examples of solar water system selection. I also introduced other solar building applications. It is conv...

  5. Material Science and Construction

    Science.gov (United States)

    Traugott, Alan

    2009-03-01

    We will review the new materials and technologies that are being applied in the construction of high performance (green) buildings to improve energy efficiency, Indoor Air and Environmental Quality, water conservation and reclamation, and resource conservation. We present an introduction to state-of-the-art building concepts, including ``Net-Zero'' buildings, which generate as much energy as they use, reclaim water, and minimize waste; and ``Waste as Resource,'' including waste to energy plants, biofuels, materials reclamation and recycling. The role of advanced materials and technologies, such as spectrally selective glazing, photocatalytic concrete, solar heating and cooling, and organic solar collectors will be discussed. We also give an overview of advanced analytic tools used in building design, including Computational Fluid Dynamics, energy, and lighting/daylighting computer-based simulation programs.

  6. Mould growth on building materials

    DEFF Research Database (Denmark)

    Fog Nielsen, K.

    Mould growth in buildings is associated with adverse health effects among the occupants of the building. However actual growth only occurs in damp and water-damaged materials, and is an increasing problem in Denmark, due to less robust constructions, inadequate maintenance, and too little...... ventilation. This project was started to determine if mycotoxins are produced in damp and water-damaged buildings as well investigating the influence of environmental conditions (humidity and temperature) on the production of fungal growth and secondary metabolism....

  7. Building envelope

    CSIR Research Space (South Africa)

    Gibberd, Jeremy T

    2009-01-01

    Full Text Available This chapter describes the way building envelopes can contribute to developing green buildings and sets out some objectives that could be aimed for. It also proposes a number of approaches that can be used to help design green building envelopes...

  8. Healthy Buildings?

    Science.gov (United States)

    Grubb, Deborah

    Health problems related to school buildings can be categorized in five major areas: sick-building syndrome; health-threatening building materials; environmental hazards such as radon gas and asbestos; lead poisoning; and poor indoor air quality due to smoke, chemicals, and other pollutants. This paper provides an overview of these areas,…

  9. Solvable groups and a shear construction

    DEFF Research Database (Denmark)

    Freibert, Marco; Swann, Andrew Francis

    The twist construction is a geometric model of T-duality that includes constructions of nilmanifolds from tori. This paper shows how one-dimensional foliations on manifolds may be used in a shear construction, which in algebraic form builds certain solvable Lie groups from Abelian ones. We discuss...... other examples of geometric structures that may be obtained from the shear construction....

  10. 40 CFR 7.70 - New construction.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 1 2010-07-01 2010-07-01 false New construction. 7.70 Section 7.70... of Handicap § 7.70 New construction. (a) General. New facilities shall be designed and constructed to... 18, 1991, design, construction, or alteration of buildings in conformance with sections 3-8 of the...

  11. 45 CFR 1151.23 - New construction.

    Science.gov (United States)

    2010-10-01

    ... 45 Public Welfare 3 2010-10-01 2010-10-01 false New construction. 1151.23 Section 1151.23 Public... Prohibited Accessibility § 1151.23 New construction. (a) Design, construction, and alteration. New facilities... Accessibility Standards. (1) Effective as of January 18, 1991, design, construction, or alteration of buildings...

  12. Environmental impacts of adobe as a building material: The north cyprus traditional building case

    Directory of Open Access Journals (Sweden)

    A.P. Olukoya Obafemi

    2016-06-01

    Summarily, this paper posits that the successful fusion of traditional building materials such as Adobe and modern design construct will not only give birth to earth conscious building, but will also be energy efficient. Moreover, it will be a substitute building material the building industry can adopt at as a contributing solution to the omniscient global warming malady.

  13. The pre-fabrication of building facades

    CERN Document Server

    Rangel, Bárbara; Faria, José

    2017-01-01

    This book compares two buildings with different technologies and distinct environment from the combined viewpoints of civil engineering and architecture. The first is the most recent building of Columbia University in New York, the Northwest Science Building, a project designed by Rafael Moneo and Dan Brodkin of Ove Arup. The second one is the Burgo Tower in Oporto, by Eduardo Souto Moura and Rui Furtado of AFA, a building that brings a new perspective to the use of prefabrication technologies with local traditional construction systems. With the detailed analyses of recognized researchers in civil engineering and architecture, this book is a reflection upon the problems and solutions in the design and construction process of a prefabricated building system. This volume, like those to follow, brings together, building research and building design practice to enhance the knowledge of complementarity areas involved in construction, engineering and architecture. This is the first book in a new series "Building R...

  14. New Ideas for School Construction.

    Science.gov (United States)

    Producers' Council, Inc., Washington, DC.

    Present educators, architects, engineers, and building product manufacturers with a medium of common interest for discussion of mutual school construction problems, objectives, needs, ideas, capabilities and limitations. Contents include--(1) modern wood construction, (2) school room in a steel mill, (3) masonry in new school design, (4) the…

  15. Green commercial building insurance in Malaysia

    Science.gov (United States)

    Yang, Yu Xin Ou; Chew, Boon Cheong; Loo, Heoy Shin; Tan, Lay Hong

    2017-03-01

    Green building construction is growing tremendously globally even in Malaysia. Currently, there are approximate 636 buildings have registered and to be certified with Green Building Index. Among these buildings, 45 buildings have already fulfilled the requirements and fully certified. The other buildings still under provisional certification stage. Malaysia had adopted Green Building Index in 2009 to support a move to promote green building concept. Malaysia starts to move towards green building because Malaysian construction and building industry realizes that both energy consumed and waste produced are reduced without irreversible impacts to ecosystems. Consequently, insurance companies such as Fireman's Fund from America has started the green building insurance policies for their green building in the year of 2006, while Malaysia still remain the coverage for green buildings using conventional property insurance. There are lacks of efforts to be seen from insurance companies to propose green building insurance for these green buildings. There are a few factors which can take into consideration for insurance companies to start the very first green building insurance in Malaysia. Although there are challenges, some efficient strategies have been identified to overcome the problems. The methods used in this research topic is qualitative research. The results obtained shows that green commercial building insurance has a huge business opportunity in Malaysia because the number of green commercial buildings are increasing tremendously in Malaysia. It is a favor to implement green building insurance in Malaysia. Furthermore, insurance companies can consider to add in extra coverage in standard building policy to provide extra protection for non-certified green buildings which have the intention to rebuilt in green when damage happens. Generally, it is very important to introduce green commercial buildings insurance into Malaysia so that all of the green commercial

  16. Usability Constructs

    DEFF Research Database (Denmark)

    Hertzum, Morten; Clemmesen, Torkil; Hornbæk, Kasper Anders Søren

    2007-01-01

    Whereas research on usability predominantly employs universal definitions of the aspects that comprise usability, people experience their use of information systems through personal constructs. Based on 48 repertory-grid interviews, this study investigates how such personal constructs are affecte...

  17. Accelerated construction

    Science.gov (United States)

    2004-01-01

    Accelerated Construction Technology Transfer (ACTT) is a strategic process that uses various innovative techniques, strategies, and technologies to minimize actual construction time, while enhancing quality and safety on today's large, complex multip...

  18. Modular Buildings Are Here To Stay.

    Science.gov (United States)

    Williams, Steven; Roman, Michael I.; Tiernan, Maury; Savage, Chuck; Airikka, Robert; Brosius, Jerry L.

    2000-01-01

    Presents several examples of modular building construction being used be school districts to support their need for more space, building flexibility, and enhancement of the learning environment. Comparisons with traditionally built school facilities are offered as are answers to commonly held myths concerning modular construction. (GR)

  19. Laboratory Building

    Energy Technology Data Exchange (ETDEWEB)

    Herrera, Joshua M. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2015-03-01

    This report is an analysis of the means of egress and life safety requirements for the laboratory building. The building is located at Sandia National Laboratories (SNL) in Albuquerque, NM. The report includes a prescriptive-based analysis as well as a performance-based analysis. Following the analysis are appendices which contain maps of the laboratory building used throughout the analysis. The top of all the maps is assumed to be north.

  20. U.S. Department of Energy Commercial Reference Building Models of the National Building Stock

    Energy Technology Data Exchange (ETDEWEB)

    Deru, M.; Field, K.; Studer, D.; Benne, K.; Griffith, B.; Torcellini, P.; Liu, B.; Halverson, M.; Winiarski, D.; Rosenberg, M.; Yazdanian, M.; Huang, J.; Crawley, D.

    2011-02-01

    The U.S. Department of Energy (DOE) Building Technologies Program has set the aggressive goal of producing marketable net-zero energy buildings by 2025. This goal will require collaboration between the DOE laboratories and the building industry. We developed standard or reference energy models for the most common commercial buildings to serve as starting points for energy efficiency research. These models represent fairly realistic buildings and typical construction practices. Fifteen commercial building types and one multifamily residential building were determined by consensus between DOE, the National Renewable Energy Laboratory, Pacific Northwest National Laboratory, and Lawrence Berkeley National Laboratory, and represent approximately two-thirds of the commercial building stock.