T型件单边螺栓连接方钢管混凝土柱-钢梁框架抗震性能研究  

Study on seismic behavior of concrete-filled square steel tubular column steel beam frame with T-shaped unilateral bolt connections

作　　者：徐红玉 李奕昂 王新武[2] 刘欢欢[3] 孙海粟[2] Ll Young Jang Xu Hong-yu;Li Yi-ang;Wang Xin-wu;Liu Huan-huan;Xun Hai-su;Ll Young Jang(School of Civil Engineering,Henan University of Science and Technology,Luoyang 471023,China;Luoyang Institute of Science and Technology,Henan International Joint Laboratory of New Civil Engineering Structure,Luoyang 471023,China;Wuhan University of Technology,Wuhan 430070,China;College of Civil Engineering,Kumoh National Institute of Technology,Gumisi 39177,Korea)

机构地区：[1]河南科技大学土木工程学院,河南洛阳471023 [2]洛阳理工学院河南省新型土木工程结构国际联合实验室,河南洛阳471023 [3]武汉理工大学,湖北武汉430070 [4]金乌国立工科大学土木工程学院,韩国龟尾39177

出　　处：《工程抗震与加固改造》2023年第3期15-22,共8页Earthquake Resistant Engineering and Retrofitting

基　　金：国家自然科学基金(51678284);中原科技创新领军人才(214200510002);河南省高校科技创新团队(21IRTSTHN010);河南省科技厅科技攻关(212102310969);河南省高等学校重点科研项目(21B560010)。

摘　　要：为研究T型件单边螺栓连接方钢管混凝土柱-钢梁组合框架的抗震性能,设计了一榀由T型件与单边螺栓相连的1:2缩尺的组合框架,并通过拟静力加载试验对框架的承载能力、滞回性能、刚度退化、耗能能力和延性性能进行了分析,并与一榀T型件单边螺栓连接方钢管柱-钢梁框架进行了对比分析,结果表明:两试件滞回曲线均较为饱满,无明显捏缩,方钢管混凝土柱-钢梁组合框架要比方钢管柱-钢梁框架的承载力高,且初始刚度要高出19%,但其耗能能力和延性均有所降低,两试件加载后期承载力下降均较缓慢,且水平位移达到了层间位移角1/30,表明两试件均具有良好的抗震性。In order to study the seismic behavior of concrete-filled square steel tubular(CFST)column steel beam frame structure with T-shaped members connected by unilateral bolts,a 1:2 scale composite frame composed of semi-rigid beam column joints connected by T-shaped members and unilateral bolts is designed and tested under horizontal low cyclic loading.Based on the measured data and test phenomena,the seismic performance indexes of the specimen structure,such as hysteretic performance,skeleton curve,stiffness degradation,energy dissipation capacity and ductility,are analyzed,and compared with the test data of a group of T-shaped one-sided bolted square steel tubular column steel beam frames,The results show that:the hysteresis curves of the two specimens are relatively full,with a certain pinch effect;the bearing capacity of concrete-filled square steel tubular column steel beam frame is higher than that of concrete-filled square steel tubular column steel beam frame,and its initial stiffness is 19%higher,but its energy dissipation capacity and ductility are reduced;the bearing capacity of the two specimens decrease slowly after loading,and the horizontal displacement reaches 1/30 of the inter story displacement angle,indicating that both specimens had good seismic resistance.

关 键 词：单边螺栓 T型件 方钢管混凝土柱 抗震性能 拟静力试验 

分 类 号：TU398.9[建筑科学—结构工程] TU352.11