中文摘要：

采用OpenSees作为有限元分析平台对6根型钢再生混凝土轴压试件和9根偏压试件进行受压静载试验全过程的非线性数值模拟，分析了再生混凝土取代率、长细比及混凝土强度对型钢再生混凝土组合柱轴心受压承载力的影响和再生混凝土取代率、相对偏心距及混凝土强度对型钢再生混凝土组合柱偏心受压承载力的影响。在分析中，选用基于柔度法的纤维模型进行型钢再生混凝土柱的静力非线性分析，并结合梁柱杆件单元，根据不同的材料属性对型钢再生混凝土柱正截面进行精细划分，来实现型钢再生混凝土柱的模拟技术。与试验的对比分析表明，OpenSees能够有效地模拟型钢再生混凝土柱正截面的受力和变形过程，具有较好的计算精度。

英文摘要：

In this paper, it was carried out nonlinear numerical simulation of six axial specimens and nine eccentric compression specimens of steel reinforced recycled aggregate concrete columns using open-source earthquake engineering simulation system OpenSees. It was also analysed the effects of the recycled aggregate replacement rate, slenderness ratio and concrete strength on the bearing capacity of the exially loaded specimens, and also analyzed the effects of the recycled aggregate replacing rate, relative eccentricity and concrete strength on the bearing capacity of the eccentrically loaded specimens. In the analyzing process, the column section was fine-divided and different fibers were defined to simulate the appropriate material properties. And then, a model of SRRAC column was established based on the nonlinear beam-column element. The comparative analysis of the simulation results and the experimental results indicates that OpenSees Program can be used in simulating the loading process of steel reinforced recycled aggregate concrete columns effectively.