外肋板式钢板混凝土组合剪力墙与钢梁节点抗震性能试验研究  

Experimental study on seismic behavior of joint of steel beam and steel plate-concrete composite shear wall combined with external rib plate

作　　者：刘义航 万馨[1] 赵根田[1] 陈明[1] 相景森 LIU Yihang;WAN Xin;ZHAO Gentian;CHEN Ming;XIANG Jingsen(School of Civil Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China)

机构地区：[1]内蒙古科技大学土木工程学院,包头014010

出　　处：《建筑结构》2023年第24期103-109,共7页Building Structure

基　　金：内蒙古自治区自然科学基金(2018MS05044)。

摘　　要：外肋板式钢板混凝土组合剪力墙与钢梁节点是一种新型墙梁节点,设计并制作了四个足尺的外肋板式钢板混凝土剪力墙与钢梁节点模型试件进行低周往复加载试验,研究钢梁跨高比、外肋板宽厚比以及设置栓钉对试件的滞回性能、延性、耗能和刚度退化等抗震性能的影响。结果表明该节点具有良好的延性和耗能能力,外肋板对节点承载力有较大提升,跨高比较小的试件在弹塑性阶段具有更好的耗能能力,改变外肋板宽厚比和在墙侧设置栓钉对该节点初始刚度无明显影响,该节点荷载有两种传递方式,一种由外伸梁传至外肋板,再由外肋板传至剪力墙;另一种直接由外伸梁传递至剪力墙,前者占比更高。The joint of steel beam and steel plate-concrete composite shear wall combined with external rib plate is a new type of joint of wall beam.Four full-size model specimens of steel plate-concrete shear walls and steel beam joints were designed and made,and low cycle loading tests were carried out to study the influences of steel beam span height ratio,external rib plate width to thickness ratio and peg setting on the stress characteristics of the specimen such as hysteretic performance,ductility,energy dissipation and stiffness degradation.The results show that the joint has good ductility and energy dissipation capacity.The external rib plate has a great improvement on the bearing capacity of the joint.The elastic and plastic dissipation capacity of the specimens with a small span is better.The change of the width to thickness ratio of the external rib plate and the setting of bolts on the wall have little influence on the initial stiffness of the joint.The load of the joint has two transfer modes,one is transmitted from the overhanging beam to the external rib plate and then from the external rib plate to the shear wall,the other is directly transmitted from the overhanging beam to the shear wall,and the former accounts for a higher proportion.

关 键 词：外肋板 钢板混凝土组合剪力墙 墙梁节点 抗震性能 低周往复加载试验 

分 类 号：TU398[建筑科学—结构工程]