摘要
基于有限元分析软件SAP2000,结合湖南电视台最新演播大楼,建立设置了楼面调频质量阻尼器的高层钢框架结构的有限元模型。首先控制阻尼器各参数相同,以不同的布置形式作用于结构,通过线性时程分析方法对布置了阻尼器的结构在罕遇地震作用下的层间剪力、层间位移、顶层加速度和位移进行分析,得到不同布置方案下阻尼器的控制效果规律、特点及最佳布置方式。以此为基础研究不同质量比对阻尼器控制效果的影响。结果表明,阻尼器布置在外侧并适当增加质量比可以提升阻尼器的控制效果,研究结果可为同类型高层钢框架结构阻尼器的布置提供参考。
Using finite element analysis software SAP2000,a finite element model of high-rise steel frame structure with floor tuned mass damper is established for the recently built studio building of Hunan TV Station.Firstly,the parameters of the control damper are the same,acting on structures in different layouts.The inter-story shear force,story drift,top acceleration and displacement of structures with dampers under rare earthquakes are analyzed by linear time-history analysis method.The control law,characteristics and optimal arrangement of dampers under different arrangement schemes are obtained.Based on this analysis,the influence of different mass ratios on the control effect of dampers is compared.The results show that the control effect of the damper can be improved by placing the damper outside and increasing the mass ratio appropriately.This paper can provide a reference for the arrangement of dampers for similar high-rise steel frame structures.
作者
胡习兵
黄浩
张明亮
HU Xibing;HUANG Hao;ZHANG Mingliang(College of Civil Engineering,Central South University of Forestry and Technology,Changsha 410004,China;Nantong Sijian Construction Group Architectural Design Co.,Ltd.,Nantong 226300,China;Hunan Construction Engineering Group Co.,Ltd.,Changsha 410004,China)
出处
《建筑钢结构进展》
CSCD
北大核心
2020年第6期98-102,127,共6页
Progress in Steel Building Structures
基金
住房和城乡建设部科技计划项目(2016-K5-054、2017-S4-026)
湖南省自然科学基金(2020JJ4943)。
关键词
高层钢框架结构
楼面阻尼器
振动控制
抗震性能
线性时程分析
high-rise steel frame structure
floor damper
vibration control
seismic performance
linear time-history analysis
