装配式方钢管-桁架梁外套筒式连接节点试验研究  

Experimental Study on Tube Connection of Prefabricated Square Steel Pipe and Truss Beam

作　　者：刘晓东 翁维素[1] 吕昊男 周胜 乎树铅 张健[1] LIU Xiaodong;WENG Weisu;LV Haonan;ZHOU Sheng;HU Shuqian;ZHANG Jian(Hebei University of Architecture,Zhangjiakou,Hebei 075000)

机构地区：[1]河北建筑工程学院,河北张家口075000

出　　处：《河北建筑工程学院学报》2023年第3期1-6,12,共7页Journal of Hebei Institute of Architecture and Civil Engineering

基　　金：河北建筑工程学院创新基金(XY202204)。

摘　　要：为深入分析装配式方钢管柱-桁架梁外套筒式连接节点的可行性,采用ABAQUS有限元软件对该连接节点进行了数值模拟,通过低周荷载反复模拟实验,获取此节点的滞回曲线、骨架曲线、延性等参数,详细研究了节点时间在加载过程中的破坏过程,对其承载性能及延性能力的影响。研究表明在低周往复加载方式下该试件节点的破坏主要为桁架梁的腹杆及弦杆发生破坏,在加载过程中试件连接节点部位未发生破坏,满足“强节点,弱构件”的抗震设计原则。In order to deeply analyze the feasibility of the assembled square steel tube column truss beam outer sleeve connection node,ABAQUS finite element software is used in this paper to conduct numerical simulation of the connection node.Through repeated low cycle load simulation experiments,the hysteresis curve,skeleton curve,ductility and other parameters of the node are obtained.The failure process of the node during the loading process is studied in detail,and the impact on its load-bearing performance and ductility capacity is studied.The research has shown that the failure of the specimen node under low cycle reciprocating loading is mainly caused by the failure of the web and chord members of the truss beam.During the loading process,there was no damage to the connection nodes of the specimen,meeting the seismic design principle of“strong nodes,weak components”.

关 键 词：装配式节点 桁架梁 有限元分析 方钢管柱 

分 类 号：TU3[建筑科学—结构工程]