Distributed Multiple Tuned Mass Dampers for Wind Vibration Response Control of High-Rise Building
Distributed Multiple Tuned Mass Dampers for Wind Vibration Response Control of High-Rise Building
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DOI：
10.1155/2014/198719
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发表时间：
2014-11
影响因子：
--
通讯作者：
S. Elias;V. Matsagar
中科院分区：
文献类型：
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作者：
S. Elias;V. Matsagar
研究了多层调谐质量阻尼器（MTMD）沿沿着高度分布对高层建筑振动响应的控制效果。以一栋76层的基准建筑为研究对象，将其模型化为剪切型结构，在每层设置一个侧向自由度，在顶层和不同楼层设置调谐质量阻尼器（TMD）。分别基于非受控和受控建筑物的振型和频率确定了安装TMD的合适位置及其调谐频率。多模态控制策略已被采用，其中每个TMD被放置在建筑物的振型振幅是最大的或大的特定模式被控制和调谐与相应的模态频率。采用Newmark法求解结构的运动控制方程。将分布式MTMD（d-MTMD）的性能与单调谐质量阻尼器（STMD）和所有MTMD放置在顶层进行了比较。计算了高层建筑在风荷载作用下的加速度和位移变化，研究了MTMD在高层建筑振动控制中的有效性。结果表明，d-MTMD比STMD和设置在顶层的MTMD更能有效地控制结构的风振。
Multiple tuned mass dampers (MTMDs) distributed along height of a high-rise building are investigated for their effectiveness in vibration response control. A 76-storey benchmark building is modeled as shear type structure with a lateral degree of freedom at each floor, and tuned mass dampers (TMDs) are installed at top/different floors. Suitable locations for installing the TMDs and their tuning frequencies are identified based, respectively, on the mode shapes and frequencies of the uncontrolled and controlled buildings. Multimode control strategy has been adopted, wherein each TMD is placed where the mode shape amplitude of the building is the largest or large in the particular mode being controlled and tuned with the corresponding modal frequency. Newmark’s method is used to solve the governing equations of motion for the structure. The performance of the distributed MTMDs (d-MTMDs) is compared with single tuned mass damper (STMD) and all the MTMDs placed at top floor. The variations of top floor acceleration and displacement under wind loads are computed to study the effectiveness of the MTMDs in vibration control of the high-rise building. It is concluded that the d-MTMDs are more effective to control wind induced vibration than the STMD and the MTMDs placed at top floor.