摘要
北京某学校中学部B1楼为多层装配式钢框架减震结构。B1楼共布置24个黏滞阻尼墙(VD),为了验证装配式钢框架减震结构在设计后能否满足“大震不倒”的抗震设防要求。本文使用Perform-3D软件分别对安装VD和不安装VD的结构进行在罕遇地震、极罕遇地震作用下的弹塑性分析。结果表明:原结构在罕遇地震作用下层间位移角满足规范限值要求,但在极罕遇地震作用下层间位移角已大于1/50。减震结构在罕遇、极罕遇地震作用下层间位移角均小于1/50,且相比原结构层间位移角显著减小,黏滞阻尼墙有效地保护了主体结构,吸收了大量的地震能量。
The B1 building of the middle school department of a school in Beijing is a multilayer prefabricated steel frame damping structure.A total of 24 viscous damping walls(VD)were arranged in the B1 building.To verify whether the fabricated steel frame structure can meet the seismic fortification requirements after the design,in this paper,Perform-3D software was used to perform elastoplastic analysis of structures with and without VD under the action of rare earthquake and extremely rare earthquake.The results show that the displacement angle between the lower layers of the original structure meets the standard limit,but the displacement angle between the lower layers of the structure is greater than 1/50.The displacement angle between the lower layers of the shock absorbing structure is less than 1/50 during rare and extremely rare earthquakes,and the displacement angle between the layers is significantly smaller than that of the original structure.The viscous damping wall effectively protects the main structure and absorbs a large amount of seismic energy.
作者
刘文燕
罗隆震
耿耀明
何文福
LIU Wenyan;LUO Longzhen;GENG Yaoming;HE Wenfu(Department of Civil Engineering of Shanghai University,Shanghai 200444,China;Tongji Architectural Design(Group)Co.,Ltd.,Shanghai 200092,China)
出处
《结构工程师》
2021年第1期97-105,共9页
Structural Engineers
基金
上海市科委科研计划项目(18DZ1205700)。
关键词
非线性黏滞阻尼墙
抗震性能
装配式钢结构
弹塑性时程分析
nonlinear viscous damping wall
seismic performance
assembled steel structure
inelastic timehistory analysis
