节点文献
钢筋混凝土柱拟静力试验数值模拟分析
Numerical Analysis of Pseudo-static Tests of RC Columns
【摘要】 采用OpenSees中的非线性纤维单元对4根钢筋混凝土柱的拟静力试验进行了数值模拟。分析表明,非线性纤维单元能够较好地模拟构件的滞回性能,钢筋的屈服强度和硬化系数对模拟结果影响较大,考虑钢筋屈曲能比较准确地描述构件在破坏阶段刚度和强度的退化行为,与试验结果更为吻合。
【Abstract】 The pseudo-static tests results of four RC columns are numerically modeled based on the nonlinear fiber element with OpenSees software.The experiment and simulated reults are compared.It is found that the nonlinear fiber element can accurately simulate the hysteretic behavior of RC columns and the simulated results are sensitive to the strength,hardening ratio and buckling behavior of the reinforcements.In order to model the degradation in strength and stiffness of RC columns loaded to their failure,the buckling of reinforcements should be taken into account in simulation.
【Key words】 RC column; OpenSees; pseudo-static test; fiber element; buckling;
- 【文献出处】 工程抗震与加固改造 ,Earthquake Resistant Engineering and Retrofitting , 编辑部邮箱 ,2013年05期
- 【分类号】TU375.3
- 【被引频次】6
- 【下载频次】288