摘要:针对一些学者近两年提出的新型圆截面钢管-混凝土-CFRP-混凝土实心组合柱(简称为SCCC组合柱)还没有在抗震性能方面做过深入研究的现状，本文利用有限元软件ABAQUS对轴向压力及低周往复荷载作用下SCCC组合柱的抗震性能进行了数值模拟，研究了不同直径的CFRP管对组合柱抗震性能的影响。分析结果表明，随着CFRP管直径的增大，组合柱的抗震性能有不同程度的提高。但是从结构耐火性能的角度出发，CFRP管直径过大，会使结构的耐火时间明显降低。因此，有必要确定一个合适的直径范围，使得组合柱能够充发挥其性能。同时，也能为实验提供有效的理论分析方法。

Abstract: In view of status that the new circular hybrid Steel-Concrete-CFRP-Concrete column (simply called SCCC columns) which was proposed by some scholars nearly tow years, hasn't made a deep research in seismic performance. In this paper, using finite element software ABAQUS simulate seismic behaviors of SCCC composite columns which under the action of axial compressive force and low cycle reversed loading, studied the effect on seismic performance of composite columns in different diameter CFRP tubes. Analysis results show that, along with the increase of CFRP tube diameter, the seismic performance of composite columns had different degrees of improvement. But see from the structure's fire behavior, the increse of CFRP tube diameter will make fire resistance time decreased obviously. Therefore, it is necessary to determine a suitable diameter scope, makes the composite column can play its performance. At the same time, can provide effective theoretical analysis method for experimental.