竖向穿心板式钢管混凝土柱-钢梁栓接节点承载性能分析  

Analysis of Bearing Capacity of Vertical Through Diaphragm Bolted Joint Between Concrete-filled Steel Tubular Column and Steel Beam

作　　者：叶全喜 王元清[2] 林樱 王中兴 舒畅 张枫 李桐栋 YE Quanxi;WANG Yuanqing;LIN Ying;WANG Zhongxing;SHU Chang;ZHANG Feng;LI Tongdong(School of Civil Engineering,Hebei University of Water Resources and Electric Engineering,Cangzhou 061001,Hebei,China;Department of Civil Engineering,Tsinghua University,Beijing 100084,China;School of Civil Engineering,Tianjin University,Tianjin 300350,China;Wuzhou Engineering Design and Research Institute,Beijing 100053,China;Shenzhen GSIN Green Building Co.,Ltd.,Shenzhen 518117,China;Hebei Key Laboratory of Getechnical Engineering Safety and Deformation Control,Cangzhou 061001,Hebei,China)

机构地区：[1]河北水利电力学院土木工程学院,河北沧州061001 [2]清华大学土木工程系,北京100084 [3]天津大学建筑工程学院,天津300350 [4]中国五洲工程设计集团有限公司,北京100053 [5]深圳金鑫绿建股份有限公司,深圳518117 [6]河北省岩土工程安全与变形控制重点实验室,河北沧州061001

出　　处：《北京工业大学学报》2021年第11期1247-1255,共9页Journal of Beijing University of Technology

基　　金：河北省高等学校科学研究计划青年拔尖人才资助项目(BJ2018062);国家重点研发计划资助项目(2018YFC0705503)。

摘　　要：为了解决传统钢管混凝土柱-钢梁节点内隔板焊接困难、外环板用钢量大以及柱子截面大造成室内出现凸角的问题,提出一种适用于装配式钢结构住宅的竖向穿心板式钢管混凝土柱-钢梁栓接节点,并在该节点单调加载试验基础上,对其承载性能及受力过程进行有限元模拟分析.结果表明:按实际摩擦因数输入的有限元模型分析结果与试验吻合较好,可通过有限元分析研究试验加载的详细过程;该节点按刚度分类属于半刚性连接,节点受力过程分为弹性阶段、滑移阶段、强化阶段、破坏阶段;节点均具有较高的承载力,其连接的延性系数均大于6,塑性转角均大于0.035,满足相关规范的要求.To solve problems of welding difficulty of internal diaphragm,large consumption of steel for external diaphragm and exposed corner in door caused by the large cross-section width of the column,a type of vertical through diaphragm bolted joint(VTDBJ)between concrete-filled steel tubular column and steel beam was proposed in this paper,which is suitable for fabricated steel structure.Based on the monotonic loading test of the joint,the bearing capacities and loading process were analyzed in detail through the finite element analysis.Results show that the finite element analysis based on the actual friction coefficient agress well with the test result,and the detailed loading process of test can be studied by finite element analysis.The joint can be classified as semi-rigid type according to the stiffness.The loading process of the joint can be divided into elastic stage,sliding stage,strengthening stage and failure stage.The joint has excellent bearing capacity,and the ductility coefficients of the connections are greater than 6 and the plastic rotation angles are greater than 0.035,which meets the requirement of relevant specification.

关 键 词：穿心板 半刚性节点 钢管混凝土 柱楞 节点刚度 装配式 

分 类 号：TU391[建筑科学—结构工程]