集成型碰撞调谐质量阻尼器(P-TMD)振动台试验研究  

An integrated horizontal pounding tuned mass damper (P-TMD) under shaking table test

作　　者：林伟[1] 彭刚杰 祁皑[1] 陈尚鸿[1] 

机构地区：[1]福州大学土木工程学院,福建福州350116

出　　处：《广西大学学报（自然科学版）》2017年第6期2347-2354,共8页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(51578159;51678158);福建省高等学校新世纪优秀人才支持计划项目(83016017);福建省科技厅高校产学合作引导性项目(2017H0016);福州市科技局产学研项目(82316031)

摘　　要：针对传统调谐质量阻尼器(TMD)质量过大难以安装,对频率较为敏感的固有缺陷,碰撞调谐质量阻尼器(P-TMD)将碰撞耗能与传统的TMD相结合以增大装置耗能。在前期的数值模拟研究中,P-TMD在地震激励下展现了比TMD更好的控制效果及控制稳定性。根据P-TMD的数值模型设计制作了一个用于水平向减振的集成P-TMD装置原型,并将装置安装于一柔性框架结构进行了地震激励下的减振试验。试验结果验证了P-TMD在不同地震激励下都可以对结构响应进行有效控制,控制效果相对稳定;特别对加速度峰值和均方根值的控制效果可达40%以上,相比TMD控制的效果提升明显。本文结果可以为今后P-TMD的进一步研究和应用提供必要的试验支持。The traditional Tuned Mass Damper（ TMD） usually has large mass and is sensitive to the variation of frequencies. In order to improve this device,a Pounding Tuned Mass Damper（ P-TMD）that dissipates vibration energy through impact is proposed. In previous numerical study,P-TMD has shown effectiveness in controlling the seismic responses,and its performance was found to be stable when different inputs were selected. In this paper,a prototype of integrated horizontal P-TMD is designed and manufactured,and then a shaking table test is conducted on a frame structure of relatively low stiffness with the prototype installed. The experimental results show that the P-TMD can guarantee stable control effectiveness when earthquake strikes,especially for the acceleration responses. The peak and the RMS responses can be reduced by more than 40%,which improves alot when comparing to the TMD control. The results of this paper can provide necessary experimental support for further study and application of P-TMD.

关 键 词：碰撞调谐质量阻尼器(P-TMD) 碰撞 振动台试验 地震激励 能量耗散 

分 类 号：TU311.3[建筑科学—结构工程]