冷弯薄壁型钢结构住宅拟静力抗震试验研究  

EXPERIMENTAL RESEARCH ON THE SEISMIC BEHAVIOR OF COLD-FORMED THIN-WALLED STEEL STRUCTURE RESIDENTIAL BUILDING UNDER QUASI-STATIC LOADING

作　　者：陈易飞 布欣[2] 王新武[2] 杨小林 邢永辉 孙海粟[2] CHEN Yifei;BU Xin;WANG Xinwu;YANG Xiaolin;XING Yonghui;SUN Haisu(College of Civil Engineering,Henan Polytechnic University,Jiaozuo 454150,China;College of Civil Engineering,Luoyang Institute of Science and Technology,Luoyang 471023,China)

机构地区：[1]河南理工大学土木工程学院,河南焦作454150 [2]洛阳理工学院土木工程学院,河南洛阳471023

出　　处：《工业建筑》2019年第12期171-176,187,共7页Industrial Construction

基　　金：国家自然科学基金项目(51678284);河南省科技攻关项目(162102310473);河南省产学研项目(162107000001)

摘　　要：为研究冷弯薄壁型钢结构体系的抗震性能,设计制作了一栋两层冷弯薄壁型钢结构住宅骨架足尺模型,并对其进行拟静力抗震试验,分析模型的受力特性和破坏形态,并对模型的滞回特性、延性、刚度退化以及耗能能力等抗震性能指标进行了研究。试验结果表明:破坏主要发生在横撑节点处构件削弱部位,其他部位变形不大;模型顶层两侧的延性系数均大于4.0,说明模型具有良好的变形能力;模型中的墙体开洞会降低结构的刚度,但延性得到提高;结构耗能能力较强,且破坏为塑性破坏,有利于结构抗震。In order to study the seismic behavior of cold-formed thin-walled steel structure system,a full-scale model of two-story cold formed thin-walled steel structure residential building frame was designed and manufactured,and quasi-static tests were conducted on the model.The mechanical characteristic and failure modes of the model were analyzed.The seismic performance indexes such as hysteretic characteristic,ductility,stiffness degradation and energy dissipation capacity were researched.The results showed that the ductility coefficients of both sides of the top story were greater than 4.0,which showed that the model had good deformation capacity;the opening of the wall in the model would reduce the stiffness of the structure,but the ductility would be improved;the structure had strong energy dissipation capacity,and the failure mode was plastic failure,which could be beneficial to the earthquake resistance of the structure.

关 键 词：冷弯薄壁型钢结构住宅 足尺模型 拟静力 破坏形态 抗震性能 

分 类 号：TU392.1[建筑科学—结构工程]