Abstract: Focused on information sharing and interoperability among software applications in the AEC/FM domain, this paper presents some solutions for data mapping between architectural modeling and structural analysis systems. Based on the Industry Foundation Classes (IFC) standard, the general architectural model and structural model are differentiated, and algorithms of obtaining the topological information of structural members and the connecting joints among structural members from architectural IFC physical file are deduced. Furthermore, based on these algorithms, the bidirectional data interfaces between the general structural analysis model (SGF) proposed by this study and the architectural IFC model are implemented by correlative C++ classes. Finally, based on the central SGF model, the whole framework for data integration of various architectural physical models and structural analysis models is proposed.