Seismic response control of base-isolated buildings using tuned mass damper

被引:32
作者
Stanikzai, Mohammad Hamayoun [1 ]
Elias, Said [2 ]
Matsagar, Vasant A. [3 ]
Jain, Arvind K. [3 ]
机构
[1] Old Dominion Univ, Dept Civil & Environm Engn, Norfolk, VA USA
[2] Univ Iceland, Earthquake Engn Res Ctr, Reykjavik, Iceland
[3] Indian Inst Technol IIT Delhi, Dept Civil Engn, New Delhi, India
关键词
Base-isolated buildings; bearing displacement; top floor acceleration; tuned mass damper; hybrid vibration controller; SYSTEMS;
D O I
10.1080/13287982.2019.1635307
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Earthquake response mitigation of base-isolated (BI) buildings with a tuned mass damper (TMD) is investigated. Two-dimensional reinforced concrete buildings having multiple degrees of freedom are numerically modelled. The placement of a TMD is varied on different floor levels and the building response under earthquake excitations is studied. The laminated rubber bearing (LRB), lead rubber bearing (N-Z), friction pendulum system and resilient-friction base isolator (R-FBI) are used as isolation systems for the buildings with 5, 10 and 15 floor levels. Newmark's step-by-step method of integration is used for solving differential equations of motion of the coupled buildings. Installation of a TMD at different story of the BI buildings mitigates the acceleration at the top level and displacement at bearings. It is found that at increased time period of the isolators the effectiveness of the TMD is reduced. Further, for low-rise buildings, the placement of TMD has no significant role in reducing the response of the buildings. However, the efficiency of TMD placement is more noticeable for buildings with a larger number of stories.
引用
收藏
页码:310 / 321
页数:12
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