翼缘双摩擦面Z形悬臂梁式全螺栓连接梁柱节点抗震性能研究  

Seismic Performance of Cantilever Beam-Column Joint with Z-shaped Fully Bolted Connection and Double Friction Surfaces at the Flange

作　　者：沙磊 屠锋 康超懿 吴正清 SHA Lei;TU Feng;KANG Chaoyi;WU Zhengqing(State Grid Zhejiang Electric Power Co.,Ltd.,Hangzhou 310000,China)

机构地区：[1]国网浙江省电力有限公司,杭州310000

出　　处：《建筑钢结构进展》2025年第2期83-90,共8页Progress in Steel Building Structures

基　　金：国家电网有限公司总部管理科技项目:35-750kV变电站建筑物及基础装配性能提升技术研究(5200-202222082A-1-1-ZN)。

摘　　要：为研究所提出的新型翼缘双摩擦面Z形悬臂梁式全螺栓连接梁柱节点的抗震性能,设计相关试件进行拟静力试验和有限元分析。同时利用有限元模拟对新型梁柱节点进行参数化分析,以验证节点的适用性及设计方法的合理性。研究结果表明:新型节点发生梁端受弯破坏,最终在悬臂梁翼缘与钢柱焊接处开裂;翼缘螺栓连接段内无滑动现象,滞回曲线饱满无捏缩;连接节点的承载能力强,变形能力良好;有限元分析结果与试验结果吻合良好;当按等强连接配置螺栓时,不同截面尺寸节点模型的滞回性能相近,破坏模式相同,可按规范规定的刚接节点设计方法进行设计。In order to study the seismic performance of a new cantilever beam-column joint with Z-shaped fully bolted connection and double friction surfaces at the flange,relevant specimen was designed for pseudo-static test and finite element analysis.Additionally,parametric analysis of the new beam-column joint was conducted using finite element simulation to verify the applicability of the proposed joint design method.The results show that the new joint experiences bending failure at the beam end,ultimately cracking at the weld between the cantilever beam flange and the steel column.There is no sliding phenomenon in the connection section,and the hysteresis curves are plump without pinching.The bearing capacity of the joint is high and the deformation capacity is good.The finite element analysis results are in good agreement with the experimental results.When the bolts are configured with equal strength connections,the hysteretic properties and failure modes of the joint models with different section sizes are similar,and the rigid joint design method according to the specification can be used to design the joint.

关 键 词：装配式钢结构 全螺栓连接 梁柱节点 抗震性能 有限元模拟 

分 类 号：TU352.11[建筑科学—结构工程] TU391