中文摘要：

采用有限元分析的方法，对钢管橡胶混凝土柱荷载—位移滞回关系曲线进行计算，并系统分析钢管截面形式和橡胶粉取代率等参数对滞回曲线骨架线、承载力退化曲线、刚度退化曲线的影响。结果表明：有限元计算结果与试验结果符合较好，钢管橡胶混凝土具有较好的滞回性能。

英文摘要：

Waste rubber processing has become a global environment and resources problems. Crushed waste rubber into rubber powder, and added into concrete, the formed of rubber concrete used as a building material, can not only achieve the utilization of waste, but also has significance for environmental protection. The cyclic behavior of rubber concrete-filled steel tubular columns was studied in this paper. The cyclic load versus later- al displacement hysteretic curve was calculated by using finite element analysis （FEA） model to investigate the behavior of the columns. Based on the theoretical model, the influences of different column cross-section type and rubber replacing ratio on the lateral load versus lateral displacement skeleton curves, capacity reduction curves and rigidity degradation curves of rubber concrete-filled steel tubular columns were discussed. Analysis shows that the predicted cyclic responses for the composite columns are in good agreement with the test results. The rubber concrete-filled steel lu- bular columns have good dynamic behaviors. The results indicate to be used for elastico-plastic analysis of the structural system.