Drogemuller R, Ambrose M, Tucker S
Automating building life cycle energy assesment
Abstract: Building designers and developers are expected to meet an increasing range of
constraints on building projects. Normally, the new constraints are part of an
established body of knowledge which designers either have to learn or a new
"discipline" emerges which has expertise in the new area. While the stock of
buildings is improved through these new requirements, both of these paths increase
the complexity of the design process with consequent increases in time and cost for
LICHEE is an advanced prototype of a system that integrates CAD with life cycle
energy assessment. With the addition of some extra information, it automatically
estimates the operational energy and embodied energy requirements of detached
housing The system was built out of existing components using the Industry
Foundation Classes (IFCs) as the "glue" to bind the components together. The use
of the IFCs provided significant savings in development time over writing
interfaces against the major CAD systems. The software architecture chosen
allowed the use of existing stand-alone software components that previously
required extra expertise and time.
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Permission to reproduce these documents have been graciously provided by the Aarhus School of Architecture, Denmark. The assistnace of the editor, Prof. Kristian Agger, is gratefully aprecciated.
Newton B W , Wilson B G , Crawford J R, Tucker S N
Networking construction: electronic integration of distributed information
Abstract: Construction in all advanced industrial societies is fragmented. On a
single project, a variety of design technologies reside within different AEC
firms which are frequently dispersed geographically (increasingly
international). Coordination during design and construction can be enhanced
via electronic networking among the various AEC firms and the Project
Manager. This paper describes a prototype CAD Conferenchg systm jointly
developed by CSIRO and Telecom Research Laboratories capable of
operating on high_speed wide area networks linking heterogeneous CAD
platform (hardware, software, networks). The paper highlights the technical
as well as management issues to be resolved and the costs and benefits of
CAD conferencing versus traditional methods of operation.
Keywords: communication networks; CAD; construction; information technology (IT)
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Permission to reproduce these papers has been graciously provided by the National University of Singapore. The assistance of the editors, particularly Prof. Martin Betts, is gratefully appreciated.
Tucker S N, Ambrose M D, Johnston D R, Newton P W, Seo S, Jones D G
LCAdesign: an integrated approach to automatic eco-efficiency assessment of commercial buildings
Abstract: Buildings consume resources and energy, contribute to pollution of our air, water and soil, impact the health and well-being of populations and constitute an important part of the built environment in which we live. The ability to assess their design with a view to reducing that impact automatically from their 3D CAD representations enables building design professionals to make informed decisions on the environmental impact of building structures. Contemporary 3D object-oriented CAD files contain a wealth of building information. LCADesign has been designed as a fully integrated approach for automated eco-efficiency assessment of commercial buildings direct from 3D CAD. LCADesign accesses the 3D CAD detail through Industry Foundation Classes (IFCs) - the international standard file format for defining architectural and constructional CAD graphic data as 3D real-world objects - to permit construction professionals to interrogate these intelligent drawing objects for analysis of the performance of a design. The automated take-off provides quantities of all building components whose specific production processes, logistics and raw material inputs, where necessary, are identified to calculate a complete list of quantities for all products such as concrete, steel, timber, plastic etc and combines this information with the life cycle inventory database, to estimate key internationally recognised environmental indicators such as CML, EPS and Eco-indicator 99. This paper outlines the key modules of LCADesign and their role in delivering an automated eco-efficiency assessment for commercial buildings.
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Permission to reproduce these papers has been graciously provided by the University of Auckland. The assistance of the editor who provided the full texts and the structured metadata, Dr. Robert Amor, is gratefully appreciated.