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Paper w78-2005-d1-1-christiansson:
Virtual Buildings from theory to practice

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P Christiansson & M Carlsen

Virtual Buildings from theory to practice

Abstract:We have now during 3 decades worked hard within R&D and practice to define, design and implement Virtual Building models to support the entire life cycle of a building and to support experience capture and input to new projects. The Cambridge UK Building Design System was an early version of a system to handle rather formalized building design in the mid 1970s. Around 1980 the IGES standard supported Cad primitive drawing exchange and the PDES/STEP work in the early 1980s laid the foundation for an object oriented handling of building process entities and model data exchange. The first object oriented Cad systems appeared in the second half of the 1980s. The more operational IFC standardization work was launched 1995 and is to some extent implemented and used in real building projects today.

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