Seismic performance analysis on the composite structure of multi-ribbed slab and light-weight steel frame

Based on the comparison of the structure of multi-ribbed slab and the structure of light-weight steel frame,a new structural system-the composite structure of multi-ribbed slab and light-weight steel frame is put forward and introduced in this paper. It is that the pure lightweight steel frame is inserted the multi-ribbed slab. The finite element model of this composite structure is created to simulate its seismic performance by ANSYS. At the same time, the deformation, lateral displacement stiffness, ductility and energy dissipation ability of the pure light-weight steel frame structure and the composite structure are described and compared in the analysis. And the interaction of multi-ribbed slab and light-weighted steel frame is considered. Finally, it is showed that the finite element model is effective and accurate, and this composite structure system is provided with excellent seismic performance. In order to analyze the application of multi-ribbed slab to litter high-rise steel structure, the effective method is put forward.