摘要
为了对钢骨混凝土组合框架结构的抗震性能进行深入研究,基于钢骨混凝土柱-钢梁组合框架低周反复荷载试验结果,采用OpenSees有限元程序对组合框架进行了非线性有限元分析,计算结果与试验结果吻合较好,表明本文所采用的材料本构关系及有限元分析模型能准确反映组合框架结构的受力性能。在此基础上研究了轴压力系数、混凝土强度等级、含钢率等对钢骨混凝土组合框架抗震性能的影响。
Based on the low-cycle reversed test results of mixed frame with SRC columns and steel beam, the finite element analysis model were established using OpenSees software to further study the seismic behaviors the mixed frame. The analysis results agree well with the test results,indicating that the nonlinear finite element models were a good simulation of mixed frames with SRC columns. In addition, tbe effects of the axial compression ratio and concrete strength grade and steel ratio on the seismic behaviors of mixed frames with SRC columns are studied.
出处
《四川建筑科学研究》
2013年第6期20-23,共4页
Sichuan Building Science
关键词
钢骨混凝土组合框架
抗震性能
轴压力系数
mixed frames with SRC columns
seismic behaviors
axial compression ratio
