Abstract: In order to solve the difficulties of modeling complex building structures in Abaqus and improve modeling efficiency, the Revit-Abaqus model exchange interface was developed. Based on Revit API, the components’ coordinates, geometry size, section type and direction, material parameters, boundary conditions and load information of the Revit structural model, which were required for structural analysis in Abaqus, were obtained by using C# language on the Visual Studio 2015 platform. In the exchange program, all components were automatically meshed, and an Abaqus-aware INP file was generated. Afterwards, the reliability and correctness of the interface were verified by a multi-layer steel frame. Finally, it was applied to the 3D modeling and structural analysis of the integral steel platform for the core tube construction of a super high-rise building in Shanghai. This exchange interface bridged the data barriers between Revit and Abaqus, and realized the goal of structural analysis by introducing the complex structural model of Revit into Abaqus, and it greatly improved the efficiency of modeling and calculation of complex structures.

Key words: Revit structural model, Revit API, Abaqus, transformation interface, secondary development, structural analysis