摘要
本工程为超限高层结构,采用钢框架+外包钢板组合墙结构体系,为增强整体刚度、控制结构周期在7s以内,结构在22层和44层设置两道加强层。本文研究了外包钢板组合剪力墙在结构整体弹塑性模型中的模拟方法,并在此基础上利用ABAQUS软件对结构进行大震动力弹塑性分析,考察结构在预估罕遇地震作用下的非线性动力响应,包括结构变形、构件损伤以及能量耗散等。分析结果表明,大震作用下结构防屈曲约束支撑充分耗能,框架柱及剪力墙损伤较小,结构具有很好的抗震性能,满足"大震不倒"的性能目标。
Fang Zheng Financial Center is over-limit high-rise structure,which adopts the steel frame+composite steel plate and concrete shear wall structure system.In order to enhance the overall stiffness and control the structural free vibration period within 7 s,the 22 nd and the 44 th stories are set with outriggers and belt members.In this paper,the simulation method of composite steel plate and concrete shear walls in the overall elastoplastic model of the structure is studied.On this basis,the dynamic elastoplastic analysis of the structure is carried out by using ABAQUS software,and the nonlinear dynamic responses of the structure,including structural deformation,component damage and energy dissipation,are investigated under the action of rare earthquake.The results show that the buckling restraint braces of the structure are fully energy dissipated under the action of rare earthquake,the damage of the columns and shear walls are light,and the structure has high anti-seismic property,which meets the target of"no collapse under strong earthquake".
作者
张慎
王杰
程明
丁世伟
陈元坤
ZHANG Shen;WANG Jie;CHENG Ming;DING Shiwei;CHEN Yuankun(Central-south China Architectural Design Institute Co.,Ltd.,Wuhan 430071,China)
出处
《建筑结构》
CSCD
北大核心
2020年第S01期428-434,共7页
Building Structure
基金
住房与城乡建设部建设科技计划项目(2017-K5-014)
