型钢混凝土异形柱中框架和边框架抗震性能试验对比分析  

Comparison and experimental analysis of the seismic performance of steel reinforced concrete exterior frame and middle frame with special-shaped columns

作　　者：薛建阳[1] 杨青峰[1] 刘祖强[1] 赵鸿铁[1] 周超锋[1] 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《西安建筑科技大学学报（自然科学版）》2016年第3期316-320,共5页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：国家自然科学基金项目(51308444;50978217);陕西省自然科学基础研究计划项目(2014JQ7288);陕西省教育厅科研计划项目(16JK1464);陕西省重点科技创新团队计划项目(2014KCT-31);西安建筑科技大学青年科技基金(QN1408)

摘　　要：为对比空间位置不同的型钢混凝土(SRC)异形柱框架的抗震性能,各设计1榀边框架和中框架进行低周反复加载试验,获得其破坏形态,分析其滞回曲线、骨架曲线、承载力、延性、耗能能力、刚度和型钢应变等特性.结果表明:SRC异形柱框架符合"强柱弱梁、强构件弱节点"的抗震设计要求,滞回曲线饱满,延性好,耗能能力强;与边框架相比,SRC异形柱中框架具有更高的承载力、更强的耗能能力和更大的初始刚度,但两者的延性比较接近,刚度退化速度相差不大.In order to compare the seismic performance of steel reinforced concrete （SRC） frames with special-shaped columns at different spatial locations, two models, an exterior frame and a middle frame, were tested under low cyclic reversed loading. The failure pattern were obtained and the mechanical behaviors such as hysteretic loops, skeleton curves, carrying capacity, ductility, energy dissipation, stiffness and shape steel strain distribution were analyzed. Test results show that SRC frame with special-shaped columns satisfies the seismic design principle of ＂strong column and weak beam, strong joint and weak member＂, the hysteretic loops are plump, the ductility is good and the energy dissipation is strong. Compared with the exterior frame, the middle frame has higher carrying capacity, stronger energy dissipation and larger initial stiffness, but the ductility and rate of stiffness degradation is not as great.

关 键 词：型钢混凝土 异形柱框架 拟静力试验 抗震性能 

分 类 号：TU398.2[建筑科学—结构工程]