【摘要】 通过SAP2000有限元软件建立了实际框架-核心筒模型,对地震作用下调谐液体阻尼器(TLD)的影响因素进行分析,研究了质量比、频率比以及TLD设置位置对结构减震效果的影响规律。结果表明,在频率比和TLD设置位置一定时,当质量比不大于3%时,减震率随质量比的增大而增大,当质量比大于3%之后,减震率将逐渐减小;在质量比和TLD设置位置一定时,减震率随频率比的增大呈现出类似正态分布的规律,在频率比为0.88左右时,减震率达到最大;在质量比和频率比一定时,将TLD设置在结构正中间位置比放在其他位置时的减震率要高。更多还原

【Abstract】 A practical frame-corewall structure model was established by SAP2000 finite element software and the influencing factors of tuned liquid damper(TLD) under seismic action were anlayzed.The influence rules of different factors such as mass ratio,frequency ratio,and TLD position on structural damping effects were studied.The result shows that with a confirmed frequency ratio and TLD position,the TLD damping rate increases as the mass ratio increases when the value of mass ratio is no greater than 3%,or the damping rate will gradually decrease.When the mass ratio and TLD position are confirmed,with the increasing of frequency ratio,the changing of damping rate shows a similar way as the normal distribution law,and the damping rate reaches the maximum value when the frequency ratio is about 0.88.When the mass ratio and frequency ratio are constant,the damping rate of TLD placed at an intermediate position is higher than that in other locations.更多还原