一种新型全装配柱座式节点力学性能的数值分析与设计方法  

Mechanical Property Numerical Analysis and Design Method of a New Type of Fully Assembled Column-base Joint

作　　者：许宸嘉 雷宏刚[1] 段雨童 王国庆 XU Chenjia;LEI Honggang;DUAN Yutong;WANG Guoqing(College of Civil Engineering,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学土木工程学院,太原030024

出　　处：《太原理工大学学报》2023年第2期366-374,共9页Journal of Taiyuan University of Technology

基　　金：国家重点研发计划基金资助项目(2016YFE0133300-04)。

摘　　要：提出一种方钢管柱与H型钢梁连接的柱座式全装配节点,在梁柱交汇处形成节点中心,由法兰盘连接上下柱,由端板连接钢梁。通过改变节点的端板厚度、螺栓直径和法兰盘与加劲板的开孔直径等参数,采用ABAQUS软件对4组节点试件进行了有限元数值分析,在单调加载制度下研究了各节点的极限承载能力与变形破坏模式,分析了参数改变对节点性能的影响;通过对节点进行往复加载获取节点的滞回曲线、骨架曲线,分析其耗能性能、延性性能及刚度退化等抗震性能。研究结果表明:该节点具备良好的抗震性能和耗能能力,端板厚度与螺栓直径对节点承载力有较为显著的影响,节点设计时合理选取参数可在保证节点承载性能的同时,充分发挥其耗能性能以确保梁柱等主要构件不发生塑性破坏。A column base fully assembled joint connecting square steel tube column and H-shaped steel beam was proposed. The joint is formed in the intersection of the beam and column, the flange is connected to the column, and the steel beam is connected by the end plate. By changing the end plate thickness, bolt diameter, and flange opening diameter of the joint, the finite element numerical analysis of four groups of joint specimens was carried out by using ABAQUS. The ultimate bearing capacity and deformation failure mode under monotonic load were investigated, and the influence of parameter change on the performance of the joint was analyzed. The hysteretic curve and skeleton curve of the joint were obtained by reciprocating loading, and seismic performance such as energy dissipation performance, ductility performance, and stiffness degradation were analyzed. The results show that the joint has good seismic performance and energy dissipation capacity, and the end plate thickness and bolt diameter have significant impacts on the bearing capacity of the joint. Reasonable selection of parameters in joint design can not only ensure the bearing performance of the joint, but also give full play to its energy dissipation performance to ensure that the main components do not have plastic failure.

关 键 词：装配式钢结构 柱座式节点 端板连接 有限元分析 

分 类 号：TU398[建筑科学—结构工程]