Research On BIM-based Building Information Integration And Management

The information silo and information gap resulting in the lack of data exchange standards and information integration mechanism during the development of the informatization of the construction industry, has made it difficult for the exchange and sharing of information during the different phases and different application systems and blocked the application of information technology in the construction area. Therefore, it has become a research direction and trend to build up building lifecycle management framework and develop integrated information management system in order to enhance the application level of IT in building industry.In the paper, BIM (Building Information Modeling), information standards and information integration technologies are comprehensively applied, and IFC (Industry Foundation Classes) standard is introduced. A BIM-based building information management system and framework is proposed. BIM architecture, information description, integration and extension mechanism are proposed. And the key technologies of BIM 3D geometric modeling and conversion, partial-BIM information extraction and integration, BIM data storage and access are researched. Based on these, a BIM Information Integration Platform (BIMIIP) is developed,which can read, save, extract, integrate and extend structured IFC model data and unstructured documents, define partial-model view, manage property set and concept term, create and convert BIM geometric model etc. The paper explored a feasible approach to create and apply BIM and provided theories, methodologies, technologies and platform for building information exchange, sharing and integration management.Furthermore, an integration methodology of 4D technology and operations simulation for construction planning and optimization is proposed and the relative integrated prototype is developed, which verified the proposed BIMIIP and technologies, and formed a more effective method for construction management. In the end, the feasibility and validity of BIMIIP are tested with the project data from the National Stadium for Beijing 2008 Olympics.The application indicates that the proposed theories and technologies in the paper solved the problem of information silo in different phases and applications in building projects, and laid a foundation for information exchange, sharing and integration in building lifecycle. The proposed BIMIIP possesses a high practical value and application prospect.