Generally, large construction projects in China have the features of huge investment, complex shapes, tight construction schedules, etc.In face of increasingly complex and diverse construction projects, the traditional project management pattern can't adapt to the current demand.The rapid development of information technology such as BIM provides a new way and method for project management.BIM research and application of Beijing Urban Construction Group can be traced back to the national stadium for the application of 4D system and Multi-user Collaborative Work System.Later, in the Kunming new airport and Beijing Inter IKEA Shopping Center and other projects, the depth and breadth of BIM applications have been extended, and it has obtained a good application effect.

Industry Foundation Classes (IFC) has been known as an international common product model for Building Information Model (BIM) exchange and sharing in building field. With the purpose of solving the problem of model sharing between structural design and other application followed, the IFC is introduced into the structural working drawing field. Combining the demand for data description, an IFC extension model was established through entity extension and property extension. The extension model was verified by BIM-based structural drawing design prototype system in a test project. The research shows that extended IFCs is suitable for BIM model description in structural working drawing. Automatic model exchange is realized between structural working drawing and quantity survey by the extended IFCs.

Collaborative design is the management support of BIM-based engineering design. With the purpose of solving the problem of model management in collaborative design, we make comprehensive application of BIM model management, user management, conflict resolution, the incremental model of transmission, user communication and etc. The research shows that using the integrated management of BIM model, we can build up a web-based collaborative design environment, which can improve the engineering design quality and efficiency significantly. The BIM management mechanism in collaborative design can provide reference for domestic platform development of collaborative design management.