双角钢-抗剪腹板节点钢框架低周往复加载下的试验研究  

Research on Seismic Performance of Steel Frame with Double Angle Steel and Shear Web Joints Under Quasi-Static Loading

作　　者：李江 吕恒林 牟星宇 周淑春 张辰 LI Jiang;LYU Henglin;MOU Xingyu;ZHOU Shuchun;ZHANG Chen(Hunan Architectural Design Institute Group Co.,Ltd.,Changsha 410000,China;School of Mechanics and Civil Engineering,China University of Mining and Technology,Xuzhou 221116,China;JiangSu Collaborative Innovation Center for Building Energy Saving and Construction Technology,Xuzhou 221116,China)

机构地区：[1]湖南省建筑设计院集团股份有限公司,长沙410000 [2]中国矿业大学力学与土木工程学院,江苏徐州221116 [3]江苏省建筑节能与建筑技术协同创新中心,江苏徐州221116

出　　处：《工业建筑》2024年第9期108-114,共7页Industrial Construction

基　　金：国家重点研发计划课题(2018YFD1100203);徐州市重点研发计划(社会发展)课题(KC166SS088)。

摘　　要：提出了适用于高烈度区的双角钢-抗剪腹板节点框架,选定某多层装配式钢结构住宅作为设计及试验原型,在低周往复加载作用下对双角钢-抗剪腹板节点框架和原型节点框架模型进行抗震性能的研究。两榀框架试件的破坏首先出现在外挂墙板,随后梁柱节点处角钢加劲肋及柱根部位置出现破坏。试验结果表明:双角钢-抗剪腹板节点框架相对于原型节点框架承载能力略低,但其屈服位移更大,前期的滞回环稍显单薄,加载后期由于抗剪腹板与顶底角钢形成了梁端三向约束,滞回环更加饱满,两榀框架试件的延性都满足设计要求;双角钢-抗剪腹板节点框架耗能能力略低于原节点框架,但在后期破坏过程中的耗能能力有着较大的上升空间,可以满足抗震区对于结构设计的要求。A double angle steel-shear web joint frame suitable for high intensity area was proposed.A multi-story prefabricated steel structure housing in Xuzhou was selected as the design and test prototype.The seismic performance of the double angle-steel shear webs joint frame and the original joint frame model were studied under quasi-static.The damage of the two frame specimens first appeared on the external wall panels,and then on the angle steel stiffeners at the beam-column joints and the column roots.The results showed that the bearing capacity of the double angle-steel shear web joint frame was slightly lower than that of the original joint frame,but the yield displacement of the double angle-steel shear web joint frame was larger.The hysteresis loop at the early stage was slightly thinner.In the later stage of loading,due to the shear web and avoidances angle formed three supporting points toward constraint hysteresis loop more full.The ductility of the two frames could meet the design requirements.The energy dissipation capacity of the double-angle steel-shear web joint frame was slightly lower than that of the original joint frame but had a large space to rise in the process of late failure,which could meet the requirements of seismic area for structural design.

关 键 词：双角钢-抗剪腹板节点 钢框架 低周往复加载 抗震性能 

分 类 号：TU391[建筑科学—结构工程]