Study on Seismic Behavior of T-shaped Concrete-filled Steel Tube Compound Column under Different Axial Compression Ratios

摘要

In this paper, the large-scale finite element software ABAQUS is used to study seismic behavior of T-shaped concrete-filled steel tube compound columns with different axial compression ratios. We determine the appropriate type of unit, measure off rational mesh, choose rational algorithm, through this simulation analysis. And we can get the hysteresis curves and skeleton curves of the columns with dies and management. The destruction and the deformation pattern of the whole columns can be seen different axial compression rations. The results show that the difference of axial compression rations has great impact on seismic behavior of T-shaped concretefilled steel tube compound column.