不同类型网架支座对混合结构抗震性能的影响  

THE INFLUCENCE ON SEISMIC PERFORMANCE OF MIXED STRUCTURE UNDER THREE DIFFERENT GRID SUPPORT

作　　者：乐风江[1] 刘娟辉 YUE Fengjiang;LIU Juanhui(Xinjiang University,Urumuqi 830047;Xinjiang Vocationl and Technical College of Construction,Urumuqi 830047,China)

机构地区：[1]新疆大学建筑工程学院,乌鲁木齐830047 [2]新疆建设职业技术学院,乌鲁木齐830047

出　　处：《低温建筑技术》2020年第10期46-50,共5页Low Temperature Architecture Technology

基　　金：新疆维吾尔自治区自然科学基金项目(2016D01C064)。

摘　　要：文中对按7度设防烈度设计的带网架风雨操场混合结构进行了在El Centro波作用下的罕遇地震弹塑性时程分析,对比讨论了网架结构分别采用钢平板支座、普通橡胶支座和铅芯橡胶支座时,风雨操场混合结构的地震响应,特别是网架杆件轴力、最大柱顶位移和层间位移角、底部剪力、塑性铰的发展和分布情况。研究表明网架屋盖采用橡胶支座和铅芯橡胶支座比采用钢平板支座时的混合结构整体抗震性能优越。The elastic-plastic time history of gymnasiums hybrid structure with roof grid structure under El Centro wave is carried out,which is designed based on 7 degrees fortification intensity.The seismic response of gymnasiums hybrid structure using steel plate support or rubber bearing or lead rubber bearing,especially the development and distribution of the axial force of the truss members,the maximum displacement on the top of the column,story drift angle,the base shear and the plastic hinge are given.The results show that the seismic behavior of gymnasiums hybrid structure with rubber bearing and lead rubber bearing is better than which is with steel plate bearing.

关 键 词：网架支座 混合结构 抗震性能 塑性铰 

分 类 号：TU352.1[建筑科学—结构工程]