方钢管柱-H型钢梁半刚性连接钢框架静力性能有限元分析  

FEA on static performance of H-shaped steel beam to square tubular column semi-rigid connections steel frame

作　　者：夏军武[1] 杨晨[1] 祝华权 常鸿飞[1] XIA Junwu;YANG Chen;ZHU Huaquan;CHANG Hongfei(Jiangsu Key Laboratory Environment Impact and Structural Safety in Engineering,ChinaUniversity of Mining and,Technology,Xuzhou,Jiangsu 221116,China;Huahui EngineeringDesign Group Co.,Ltd.,Shaoxing,Zhejiang 312000,China)

机构地区：[1]中国矿业大学江苏省土木工程环境灾变与结构可靠性高校重点实验室,江苏徐州221116 [2]华汇工程设计集团股份有限公司,浙江绍兴312000

出　　处：《江苏建筑职业技术学院学报》2020年第3期9-14,共6页Journal Of Jiangsu Vocational Institute of Architectural Technology

基　　金：国家自然科学基金资助项目(51274192)。

摘　　要：为了更好地研究新型方钢管柱-H型钢梁装配式节点框架的力学性能,在足尺寸节点试验和整体框架受力试验的基础上,通过有限元模拟研究了柱距、柱轴压比、梁上荷载分布形式三个整体参数,以及节点刚度对方钢管柱-H型钢梁半刚性连接钢框架静力性能的影响.结果表明:钢框架在柱距较大时节点区和框架柱可以保证更高的可靠度;轴压比对半刚性钢框架受力状态的影响主要集中在柱上,而对框架梁和节点区各部件的影响很小;框架梁承受跨中集中荷载时半刚性钢框架的内力和变形比承受均布荷载时要大;节点刚度对钢框架的变形和内力的影响有临界值.In order to better study the mechanical properties of the new type of square steel tube column-H beam assembled joint frame,on the basis of the full-size joint test and the static load frame test,the influence of three overall parameters of column spacing,column axial compression ratio,beam load distribution and joint stiffness on the overall static performance of the H-shaped steel beam to square tubular column semi-rigid connections steel frame were studied by finite element simulation.The results show that the reliability of steel frame is higher when column space is larger.The influence of axial pressure ratio on the stress state of semi-rigid steel frame is mainly concentrated on the column,but has little influence on the frame beam and the components of the joint area.The internal force and deformation of semi-rigid steel frame under mid-span concentrated load are larger than that under uniformly distributed load.The influence of joint stiffness on deformation and internal force of steel frame has critical value.

关 键 词：半刚性连接钢框架 方钢管柱-H型钢梁节点 有限元分析 整体受力性能 

分 类 号：TU391[建筑科学—结构工程]