方钢管混凝土组合异形柱框架-钢板剪力墙结构抗震性能试验研究  

Experimental Study of the Seismic Behavior of the Frame Composed of Special-Shaped Concrete-Filled Square Steel Tube Columns and Steel Plate Shear Walls

作　　者：于敬海[1,2] 张雪涛 郑达辉[1] 李路川 闫翔宇 Yu Jinghai;Zhang Xuetao;Zheng Dahui;Li Luchuan;Yan Xiangyu(School of Civil Engineering,Tianjin University,Tianjin 300072,China;Tianjin University Research Institute of Architectural Design and Urban Planning,Tianjin 300073,China)

机构地区：[1]天津大学建筑工程学院,天津300072 [2]天津大学建筑设计规划研究总院,天津300073

出　　处：《天津大学学报（自然科学与工程技术版）》2019年第A02期38-45,共8页Journal of Tianjin University：Science and Technology

基　　金：天津市创新创业团队特殊支持项目(TJTZJH-GCCCXCYTD-1-3)

摘　　要：通过对一榀1∶2的方钢管混凝土组合异形柱(SCFST柱)框架-钢板剪力墙模型进行拟静力试验和有限元数值模拟,并与SCFST柱框架-支撑结构拟静力试验的结果进行对比,研究SCFST柱框架-钢板剪力墙结构体系的抗震性能.结果表明:试件表现出钢板剪力墙先屈曲,钢梁后产生塑性铰的屈服机制;试件滞回曲线包围面积大,有明显捏缩现象,骨架曲线呈S形;试件承载能力和刚度较高,延性较好,耗能能力随加载进程增大,强度退化不明显,破坏阶段仍保持较高承载力和耗能能力;试件与SCFST柱框架-支撑结构相比,抗震性能较优.有限元模型破坏特征与试验基本一致.To study the seismic behavior of the frame composed of special-shaped concrete-filled square steel tube(SCFST)columns and steel plate shear walls,an experimental study and numerical simulation on a 1∶2 model of a frame comprising SCFST columns and steel plate shear walls were conducted.Experimental results were compared with the results of the bracing frame with SCFST columns.Results indicated that the specimen showed buckling of the steel plate shear wall at first,followed by yielding of the plastic hinge produced by the steel beam.The hysteresis curves of the specimen had a larger encircling area and pinch phenomenon,and the skeleton curve was Sshaped.The load-bearing capacity,stiffness,and ductility of the specimen were good.The energy dissipation capacity increased with the loading process,the degradation of strength was not obvious,and the specimen in the failure stage still maintained a high load-bearing and energy dissipation capacity.The seismic performance of the specimen was better than that of the bracing frame with SCFST columns.The failure mode of the model in the finite element analysis agreed well with the test results.

关 键 词：方钢管混凝土组合异形柱 钢板剪力墙 拟静力试验 抗震性能 

分 类 号：TU352.11[建筑科学—结构工程] TU398