Abstract:The finite element analysis software SAP2000 was used to conduct modal analysis and seismic response elastic-plastic time history analysis of steel concrete filled steel tubular frame structure,and 8-story concrete-filled steel tubular frame structure and steel concrete filled steel tubular frame structure were compared.The results show that the displacements,the maximum relative storm displacement angle of the top,the peak horizontal acceleration,and the bottom shear force of the steel concrete-filled steel tubular composite frame structure are less than those of the concrete-filled steel tube frame structure under the function of the different kind of seismic wave;and the steel concrete-filled steel tubular composite frame structure has better resistance to the horizontal seismic action,weaker response to the earthquake action and better effect to the hysteresis than the concrete-filled steel tube frame structure.