地震作用下某钢框架的TMD控制研究  

TMD Control Research of a Steel Frame Subjected to Seismic Excitation

作　　者：陈哲[1] 施卫星[1] 

机构地区：[1]同济大学结构工程与防灾研究所,上海200092

出　　处：《佳木斯大学学报（自然科学版）》2013年第6期859-862,873,共5页Journal of Jiamusi University：Natural Science Edition

摘　　要：采用SAP2000对某钢框架进行地震作用下的非线性时程分析．在钢框架顶部设置调谐质量阻尼器（TMD），分析计算得出不同自振频率TMD对应框架顶部节点的位移和加速度，比较控制效果得到最优的TMD自振频率范围为原结构一阶频率（ω1）的1．2～1．5倍．本工程中实际采用的TMD自振频率为1．3倍ω1，计算表明地震控制效果明显，In this paper, the nonlinear time -history seismic analysis of a steel frame was Used in SAP2000. A turned mass damper（TMD） was set on the top of the frame. The displacements and accelerations of top joints under different TMD frequency were calculated. The optimal TMD natural - 1.2 -1.5 times of funda- mental frequency - was obtained by comparison on control effect. Calculation results show that the TMD with nat- ural frequency of 1.3 ω1 setting on the frame has obvious effect on seismic control.

关 键 词：TMD 自振频率 位移 加速度 地震控制 

分 类 号：TU352[建筑科学—结构工程]