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首页> 外文期刊>Structural Design of Tall Buildings >Seismic response control of base‐isolated buildings using multiple tuned mass dampers
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Seismic response control of base‐isolated buildings using multiple tuned mass dampers

机译：使用多调谐质量阻尼器的基层建筑物的地震反应控制

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Seismic response of a base-isolated building equipped with single tuned mass damper (STMD), multiple tuned mass dampers (MTMDs), and distributed multiple tuned mass dampers (d-MTMDs) under real earthquake ground motions is investigated. Numerical study is carried out using analytical models of five-, 10-, and 15-storey base-isolated buildings equipped with the STMD, MTMDs, and d-MTMDs. The buildings are modeled as shear-type structure with a lateral degree of freedom at each floor level, and the buildings are isolated using the laminated rubber bearing, lead-core rubber bearing, friction pendulum system, and resilient-friction base isolator. The coupled differential equation of motion for the buildings are derived and solved in the incremental form using Newmark's step-by-step method of integration. From the numerical study conducted, it is concluded that installing a tuned mass damper at each floor level of a base-isolated building reduces the structural response in terms of top floor acceleration and bearing displacement. It is found that installing the MTMDs and d-MTMDs are significantly beneficial in reducing top floor acceleration as compared with the STMD. Further, almost comparable reduction in the bearing displacement could be obtained by installing the STMD, MTMDs at top, and d-MTMDs in the base-isolated buildings. The d-MTMDs are more beneficial as compared with the STMD and MTMDs as otherwise huge controller mass can now be divided and distributed on different floor levels.
机译：研究了配备有单调质量阻尼器（STMD），多调谐质量阻尼器（MTMD）和在真正地震地面运动的多调调质量（MTMD）和分布式多调状质量阻尼器（D-MTMDS）的地震响应。使用配备有STMD，MTMD和D-MTMD的五层，10楼和15层和15层和15层和15层和15层和15层和15层和15层和15层和15层和D-MTMD的分析模型进行了数值研究。该建筑物被建模为剪切式结构，在每个楼层处具有横向自由度，并且使用层压橡胶轴承，铅芯橡胶轴承，摩擦摆动系统和弹性摩擦基座隔离器隔离。使用纽马克的集成方法，以增量形式导出和解决建筑物的耦合差分方程。从进行的数值研究中，得出结论，在基座隔离建筑物的每个楼层安装调谐质量阻尼器，在顶层加速度和轴承位移方面降低了结构响应。有人发现，与STMD相比，安装MTMDS和D-MTMD在减少顶层加速度方面是显着的有益的。此外，轴承位移的几乎相当的降低可以通过在基座隔离的建筑物中安装STMD，MTMD和D-MTMD来获得。与STMD和MTMD相比，D-MTMD与STMD和MTMD相比，否则巨大的控制器质量现在可以分割并分布在不同的楼层上。

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