龚健, 林永乐, 王新武,等.T型钢连接方钢管柱-H型钢梁节点抗震性能分析[J].河南理工大学学报（自然科学版）,doi:10.16186/j.cnki.1673-9787.2023080020

GONG J, LIN Y L, WANG X W, et al.Seismic performance analysis of square steel tubular column-H-beam joints with T-shaped steel connection [J].Journal of Henan Polytechnic University(Natural Science) ,doi:10.16186/j.cnki.1673-9787.2023080020

T型钢连接方钢管柱-H型钢梁节点抗震性能分析（网络首发）

龚健1, 林永乐1, 王新武2, 孙海粟2, 刘欢欢2,3, 赵琦4

1.河南理工大学 土木工程学院，河南 焦作 454000;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 理学院，湖北 武汉  430070;4.河南科技大学 土木建筑学院，河南 洛阳  471023

摘要:为了研究单边螺栓和T型钢连接的方钢管柱-H型钢梁节点的抗震特性。采用室内试验和 数值模拟分析的方法，对一个1∶2缩尺的边节点进行拟静力试验，并通过ABAQUS有限元软件 进行数值模拟，综合分析边节点的承载力、刚度与耗能等力学特性。有限元分析变量为T型钢加 肋、梁翼缘做狗骨式和梁腹板做开圆孔式。结果表明：此类边节点的塑性铰主要集中在连接构件 T型钢，T型钢腹板与翼缘交接处出现应力集中状态。在试验弹性阶段，节点构件共同抵抗外部 作用力。进入塑性阶段，节点损伤逐渐累积至T型钢，使T型钢最终产生塑性破坏而失效。在T 型钢上加肋板对节点的承载力和刚度提升较明显，对耗能能力影响不大；梁翼缘做狗骨式和腹板 开圆孔式均能提高节点的耗能能力，而节点的承载力和刚度基本不变；3个变量中，梁翼缘做狗 骨式对节点抗震性能影响最显著。

关键词:T型钢;单边螺栓;拟静力;有限元模拟;抗震性能

中图分类号：TU352.11;TU398.9

doi:10.16186/j.cnki.1673-9787.2023080020

基金项目:国家自然科学基金资助项目（51678284）；中原科技创新领军人才计划项目（214200510002）；河南省高校科技创新团队项目 （21IRTSTHN010）；河南省科技厅科技攻关项目（212102310969）

收稿日期:2023-08-09

修回日期:2023-11-17

网络首发日期:2023-12-01

Seismic performance analysis of square steel tubular column-H-beam joints with T-shaped steel connection（Online）

GONG Jian1, LIN Yongle1, WANG Xinwu2, SUN Haisu2, LIU Huanhuan2,3, ZHAO Qi4

1.College of Civil Engineering， Henan Polytechnic University， Jiaozuo  454000， Henan， China;2.Henan International Joint Laboratory of New Civil Engineering Structure，Luoyang Institute of Science and Technology，Luoyang  471023，Henan，China;3.School of Science，Wuhan University of Science and Technology，Wuhan  430070， Hubei，China;4.College of Civil Engineering and Architecture，Henan University of Science and Technology，Luoyang  471023， Henan，China

Abstract:In order to study the seismic characteristics of square steel tubular column-H-shaped steel beam joints connected by one-side bolt and T-shaped steel. The quasi-static test of a 1∶2 scale edge joint was carried out by means of indoor test and numerical simulation analysis， and the numerical simulation was carried out by ABAQUS finite element software to comprehensively analyze the mechanical properties such as bearing capacity， stiffness and energy consumption of the edge joint. The finite element analysis variables are T-shaped steel ribbed， beam flanges with dog bones， and beam webs with circular holes. The results show that the plastic hinges of such edge joints are mainly concentrated on the T-shaped steel of the connecting member， and the stress concentration occurs at the junction of the T-shaped steel web and the flange. In the elastic stage of the test， the joint members resist the external force together. In the plastic stage， the joint damage gradually accumulates to the T-shaped steel， so that the T-shaped steel finally produces plastic failure and failure. The ribbed plate on the T-shaped steel has obvious improvement on the bearing capacity and stiffness of the joint， and has little effect on the energy dissipation capacity. The energy dissipation capacity of the joints can be improved by the dog-bone beam flange and the opening hole beam web， while the bearing capacity and stiffness of the joint are basically unchanged. Among the three variables， the dog-bone beam flange has the most significant effect on the seismic performance of the joint.

Key words:T-shaped steel;one-side bolt;quasi-static;finite element simulation;seismic performance

CLC：TU352.11;TU398.9