循环荷载作用下高强螺栓端板节点抗震耗能性能  

Performance Investigation on Seismic Energy Dissipation of End Plate Connection with High-strength Bolts

作　　者：曹曦 李晓磊 王志宇[1,2] 王清远[1,2,3] CAO Xi;LI Xiao-lei;WANG Zhiyu;WANG Qing-yuan(Key Laboratory of Deep Underground Science and Engineering (Ministry of Education), School of Architecture and Environment, Sichuan University,Chengdu 610065, China;Failure mechanics and Engineering Disaster Prevention and Mitigation Key Laboratory of Sichuan Province, Sichuan University, Chengdu 610044, China;School of Architecture and Civil Engineering, Chengdu University,Chengdu 610106, China)

机构地区：[1]四川大学破坏力学与工程防灾减灾四川省重点实验室,成都610044 [2]四川大学建筑与环境学院,深地科学与工程教育部重点实验室,成都610065 [3]成都大学建筑与土木工程学院,成都610106

出　　处：《科学技术与工程》2019年第25期295-301,共7页Science Technology and Engineering

基　　金：国家自然科学基金(11832007);国家住房城乡建设部科学技术计划项目(2018-K9-004)资助

摘　　要：为研究高强螺栓端板节点的抗震耗能性能,进行了7个连接件的循环加载试验,分析了钢管和螺栓的两种典型破坏模式以及钢管柱壁厚、螺栓直径、螺栓孔横向间距、螺栓个数,以及钢管柱截面尺寸对连接件耗能能力的影响。研究结果表明:高强螺栓端板连接件的破坏模式与钢管管壁厚度和螺栓强度有关;增大钢管柱壁厚、螺栓直径和截面尺寸以及增加螺栓个数和减少截面尺寸均能提高节点的耗能能力,增大钢管柱壁厚对节点的耗能性能的提高最为显著。In order to study the seismic energy dissipation of end plate connection with high-strength bolts,seven connection specimens were tested by cyclic loading test. Two typical failure modes of steel tubes and bolts and the influence of the tube wall thickness,the diameter of bolts,the transverse distance of bolt holes,the number of bolts and the section size of tubes on the energy dissipation capacity of the connection were analyzed. The results show that the failure modes of bolted endplate connections are related to the wall thickness of tubes and the strength of bolts. The energy dissipation capacity increases with the increase of the tube wall thickness,the diameter of bolts,the transverse distance of bolt holes,the number of bolts and reduction in the section size of tubes. Increasing the wall thickness of tubes has the most significant improvement on the energy dissipation performance of connections.

关 键 词：高强螺栓端板 循环加载 破坏模式 耗能性能 

分 类 号：TU391[建筑科学—结构工程]