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中文摘要：
为研究型钢混凝土（SRC）异形柱框架的滞回性能,对3榀框架模型进行低周反复加载试验,结果表明：SRC异形柱框架的滞回曲线饱满对称,耗能能力较强;实腹式配钢框架的抗震性能比空腹式更为优越。基于Open Sees系统对SRC异形柱框架的滞回性能进行有限元分析,计算结果与试验结果符合较好。根据试验及有限元模拟结果,得到SRC异形柱框架的骨架曲线模型和卸载刚度退化规律,进而建立其恢复力模型,为该新型结构体系的弹塑性分析提供参考。
英文摘要：
In order to study the hysteretic behavior of steel reinforced concrete （SRC） frame with special-shaped columns, three models were tested under low cyclic reversed loading. The test results show that the hysteretic loops of SRC frame with special-shaped columns is full and symmetry, indicating a good energy dissipation capacity. The seismic behavior of solid SRC frame with special-shaped columns is superior to that of lattice SRC frame with special-shaped columns. Based on OpenSees, the fmite element analysis on the hysteretic behavior of SRC frame with special-shaped columns was conducted. Compared with the test results, the calculated results show good agreement. According to the results of test and finite element simulation, the skeleton model and the degradation law of unloading stiffness were acquired, and then the restoring force model was established. This study can provide reference for the elasto-plastic analysis of SRC frame with special-shaped columns.
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