冷弯薄壁型钢混凝土框架套筒式装配节点抗震性能  

Seismic behavior of sleeve assembly joint of cold-formed thin-wall steel concrete frame

作　　者：王秀丽[1,2] 苏晓斌 侯鸿杰 WANG Xiu-li;SU Xiao-bin;HOU Hong-jie(School of Civil Engineering,Lanzhou University of Technology,Lanzhou 730050,China;Western Center of Disaster Mitigation in Civil Engineering of Ministry of Education,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]兰州理工大学土木工程学院,甘肃兰州730050 [2]兰州理工大学西部土木工程防灾减灾教育部工程研究中心,甘肃兰州730050

出　　处：《兰州理工大学学报》2025年第2期107-117,共11页Journal of Lanzhou University of Technology

基　　金：国家重点研发计划项目(2019YFD1101003);甘肃省建设厅项目(JKR2020-26)。

摘　　要：为促进低层装配式轻钢建筑在村镇住宅的发展,提出适用其梁柱连接的节点-套筒式装配节点,以克服冷弯薄壁型钢混凝土框架节点不易连接、装配不便和抗震性能差等问题.利用有限元软件ABAQUS进行数值模拟,分析了不同构造形式节点的破坏特征、滞回曲线、骨架曲线、刚度退化及延性等,并研究了轴压比、角钢厚度和套筒厚度3个参数对其抗震性能的影响.结果表明:不同构造形式下节点的抗震性能差别较大,其中焊接节点承载力高、延性较差,铰接节点承载力低、延性高,角钢节点承载力好、延性系数高且装配方便;轴压比对角钢节点的抗震性能影响较小;角钢及套筒厚度是影响角钢节点抗震性能的两个重要参数,当角钢厚度取4~6 mm,套筒厚度取6 mm时,节点抗震性能最优.In order to promote the development of low-rise prefabricated light steel concrete building in rural residential buildings,the prefabricated sleeve joint,which is suitable for beam-column connection,is put forward to overcome the problems,such as difficult connection,inconvenient assembly and poor seismic performance of light steel concrete frame joints.Through the numerical simulation of finite element software ABAQUS,the failure characteristics,hysteretic curve,skeleton curve,stiffness degradation and ductility of joints with different structural forms were analyzed.The effects of axial compression ratio,angle steel thickness and sleeve thickness on its seismic performance are studied.The results show that the seismic performance of joints with different structural forms is quite different.Specifically;the welded joints exhibit high bearing capacity but poor ductility,the hinged joints have low bearing capacity but high ductility;the angle steel joints show good bearing capacity,high ductility coefficient and convenient assembly.The axial compression ratio has little effect on the seismic performance of angle steel joints;The thickness of angle steel and sleeve are two important parameters affecting the seismic performance of angle steel joints.When the thickness of angle steel is between 4 mm and 6 mm and the thickness of sleeve is 6mm,the seismic performance of joints is the best.

关 键 词：轻钢结构 套筒式装配节点 抗震性能 村镇住宅 冷弯薄壁型钢混凝土 

分 类 号：TU398.2[建筑科学—结构工程]