Leifgen, Christian ; Rüppel, Uwe ; Kuhn, Tilmann E. ; Teizer, Jochen (2016)
BIM-based Collaboration Platform for the Holistic Integration of Energy Active Façade Components.
International Conference on Computing in Civil and Building Engineering (ICCCBE). Osaka, Japan (06.07.2016-08.07.2016)
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Kurzbeschreibung (Abstract)

In the future renewable energy sources will inevitably be needed to satisfy the world-wide energy demand. One of the most important sources of renewable energy is solar energy. Today, solar power parks are built and photovoltaic elements are placed onto rooftops. However, in large urban regions there is little space for solar parks and rooftops are already occupied with solar systems or have to serve other needs. In contrast to roof surface areas, the building façades offer large spaces that are not utilised yet. Therefore, Energy Active Façade Components (EAFC) might be used to increase the (electrical and/or thermal) solar yield noticeable. The successful accomplishment of construction projects requires accurate planning in every aspect. A variety of processes has to be managed involving stakeholders of many domains (e.g., architects, engineers, contractors, subcontractors, suppliers, and vendors). The continuously increasing complexity of structures and buildings necessitates a thereto adapted level of project management and construction techniques. A major evolution in the construction sector was the introduction of computer-based systems in management, design, and engineering domains. As these domains are depending from each other, a comprehensive management of all project relevant aspects requires a software environment providing appropriate interfaces for information exchanges and a collaborative working mentality of the project participants. The origin of the in this paper introduced development of a BIM-based collaboration platform lies within the complexity of EAFC. EAFC (e.g., building-integrated photovoltaic or building-integrated solar thermal components) come with a wide range of properties, requirements, and constraints that have to be regarded during all project phases. In particular, giving the opportunity of a holistic consideration of all these aspects and a facilitation of the integration of EAFC in the building process as early as possible is a main goal of this research. Therefore, a concept of a collaboration platform is introduced. A BIMserver implementation provides the core for the coordination of the project participants and the exchange of building and product models. Model-based data is exchanged in the Industry Foundation Classes (IFC) standard, as well as other information shall be distributed in open file formats. A multi-agent system brings a decent level of automation and intelligence into this environment. This is needed as the complexity of EAFC combined with the dependencies between the involved stakeholders make their integration a tough challenge.

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