H型钢梁柱新型全栓接节点的试验研究与有限元模拟  

Experimental Study and Finite Element Modeling on a New Fully Bolted Connection for H-shaped Steel Beam Column

作　　者：李祖玮 潘文[2] 蒋文龙 LI Zuwei;PAN Wen;JIANG Wenlong(Jiangsu Goodbang Vibration Control Technology Co.,Ltd.,Wuxi 214400,China;Kunming University of Science and Technology,Kunming 650000,China;Kunming Prospecting Design and Research Institute of China Nonferrous Metals Industry CO.,LTD.,Kunming 650000,China)

机构地区：[1]江苏工邦振控科技有限公司,无锡214400 [2]昆明理工大学建筑工程学院,昆明650000 [3]中国有色金属工业昆明勘察设计研究院有限公司,昆明650000

出　　处：《结构工程师》2023年第1期123-131,共9页Structural Engineers

基　　金：国家自然科学基金项目(51168024)。

摘　　要：为研究一种H型钢梁柱新型全栓接节点的性能,制作了4个不同构造方式的新型和传统全栓接节点进行对比试验,并建立有限元分析模型与试验结果进行对比。试验和有限元分析主要研究节点的半刚性特性、M-θ骨架曲线、滞回曲线、破坏模式和应力分布情况。结果表明:有限元分析结果与试验值吻合度较高,新型全栓接节点强轴方向的性能和破坏模式与传统栓接节点基本一致,均为梁端部出现塑性铰,避免节点及柱子出现严重损伤;其弱轴方向的性能和破坏模式与传统栓接节点差异较大,具有更好的承载能力、滞回性能及延性,节点及柱子的损伤较小。Four fully bolted connections in both new and traditional types have been made by different construction modes for comparative experiment,and a finite element analysis model has been established to compare with those experiment results,so as to research the performance of a new type of fully bolted connection for H-shaped steel beam column.The experiment and the finite element analysis have mainly studied the semi-rigid characteristics,the M-θskeleton curve,the hysteretic curve,the failure mode and the stress distribution of the connection.According to these results,the finite element analysis is in good alignment with the experimental value.The performance and the failure mode of the new fully bolted connection in its strong axial direction are basically the same as those of the traditional bolted connection.In both types of connections,a plastic hinge appears at the beam end,which avoids severe damages to connections and columns.The performance and the failure mode of the new fully bolted connection in its weak axial direction have demonstrated large differences from those of the traditional bolted connection.The former displays better bearing capacity,hysteretic behavior and ductility.Therefore,damages to connections and columns are small.

关 键 词：H型钢 全栓接 半刚性 承载能力 延性 

分 类 号：TU392.1[建筑科学—结构工程]