非线性粘滞阻尼器在框架结构中合理布置分析  

Analysis of reasonable arrangement of nonlinear viscous damper in frame structures

作　　者：张敏[1] 邓磊[1] 

机构地区：[1]广西科技大学土木建筑工程学院,广西柳州545006

出　　处：《广西大学学报（自然科学版）》2016年第6期1740-1750,共11页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(51368007);研究生教育创新计划项目(GKYC201631)

摘　　要：针对单向、双向地震作用下非线性粘滞阻尼器在空间框架结构中的不同布置形式,对非线性粘滞阻尼器在框架结构楼层中合理布置进行了地震反应分析,研究了框架结构的楼层最大侧移、层间最大位移角和各榀框架顶部最大侧移。结果表明,各种对称布置非线性粘滞阻尼器的减震效果基本相同,其减震效果较显著;而非对称布置非线性粘滞阻尼器的框架结构会产生不同程度的扭转效应,其减震效果较差,且地震反应甚至会超过相应抗震结构。由此建议阻尼器宜在框架结构中对称布置。Considering different arrangement of nonlinear viscous damper in frame structures under the excitation of unidirectional and bidirectional seismic actions,the seismic response analysis for reasonable arrangement of nonlinear viscous damper on the floor of the frame structures was carried out. The maximum storey displacement,storey drift angle and lateral displacement of the top of the frame structures were studied. The results indicate that the damping effect of symmetrically-setting nonlinear viscous dampers is about the same,and the effect is significant; that the frame structure which has non-symmetrically-setting nonlinear viscous dampers show some torsional responses,the damping effect is poor,and the dampers＇ seismic response is even larger than that of the frame structure. Therefore,the damper should be arranged symmetrically in frame structures.

关 键 词：阻尼器 框架 减震 非线性 有限元 

分 类 号：TU31[建筑科学—结构工程]