高强钢筋高强混凝土连梁抗震试验及非线性有限元分析*
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（1 天津大学建筑设计规划研究总院， 天津 300072； 2 天津大学建筑工程学院， 天津 300072）
［摘要］对3个三层1/4缩尺比的高强钢筋高强混凝土双肢剪力墙进行了低周往复试验，并采用ABAQUS软件对其进行了非线性有限元弹塑性分析，得到了双连梁在弹塑性阶段的内力以及其变化规律。结果表明，有限元分析结果与试验结果吻合良好，表明高强钢筋高强混凝土双肢剪力墙具有一定的抗震性能；增加连梁跨高比可以避免连梁发生剪切破坏，进而增加连梁的延性；与单连梁相比，双连梁具有更好的延性和耗能能力。［关键词］高强钢筋； 双肢剪力墙； HRB500钢筋； 双连梁； 拉伸硬化中图分类号：TU398.2 文献标识码：A 文章编号：1002-848X(2015)12-0001-06
Seismic behavior experiment and nonlinear finite element analysis on coupling beam with high strength rebar and concreteDing Yongjun1, Yu Jinghai1, Fu Chunbing2, Li Duan2, Xu Hongmao2, Cao Jianfeng2(1 Tianjin University Research Institute of Architecture Design and Urban Planning, Tianjin 300072, China; 2 School of Civil Engineering, Tianjin University, Tianjin 300072, China)Abstract:Low cyclic experiments were carried out on three 1/4 scale 3-storey coupled shear walls with high strength rebar and concrete. The nonlinear finite element elasticplastic analyses were carried on the three models using the software of ABAQUS to obtain the internal forces and change laws of the double coupling beams in elastic-plastic stage. The results show that the finite element analyses results are in good agreement with the experimental results, which proves that the coupled shear wall with high strength rebar and concrete has definite seismic performance. Increasing the span-depth ratio of coupling beam can avoid shear failure and increase the ductility. Compared with the structure of single coupling beam, ductility and energy dissipation ability of the double coupling beams structure are better.Keywords:high strength rebar; coupled shear wall; HRB500 rebar; double coupling beam; tension stiffening
*天津市建交委科技项目（2012-2）。作者简介：丁永君，硕士，研究员，高级工程师，Email:tju_yj@163.com。
