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Seismic Performance Analysis of a Connected Multitower Structure with FPS and Viscous Damper

机译：FPS和粘性阻尼器连接的多层塔结构的抗震性能分析

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摘要

A high four-tower structure is interconnected with a long sky corridor bridge on the top floor. To reduce the earthquake responses and member forces of the towers and sky corridor bridge, a passive control strategy with a friction pendulum tuned mass damper (FPTMD) was adopted. The sky corridor bridge was as the mass of FPTMD. The connection between the towers and the sky corridor bridge was designed as flexible links, where friction pendulum bearings (FPBs) and viscous dampers were installed. Elastoplastic time-history analysis was conducted by using Perform-3D model to look into its seismic behavior under intensive seismic excitation. The optimal design of the FPTMD with varying friction coefficients and radius of friction pendulum bearing (FPB) under seismic excitations was carried out, and the seismic behavior of the structure was also investigated at the same time. Results show that, for this four-tower connected structure, the friction pendulum tuned mass damper (FPTMD) has very well effect on seismic reduction. The structure can meet the seismic resistance design requirements.
机译：高四塔结构与顶层的长廊桥相互连接。为了减少塔架和空中走廊桥梁的地震反应和成员力，采用了带有摩擦摆调谐质量阻尼器（FPTMD）的被动控制策略。天空廊桥就像FPTMD一样。塔楼与空中走廊桥梁之间的连接被设计为柔性连接，并在其中安装了摩擦摆式轴承（FPB）和粘性阻尼器。通过Perform-3D模型进行弹塑性时程分析，以研究其在强烈地震激励下的地震行为。在地震激励下，对摩擦系数和摩擦摆轴承半径（FPB）变化的FPTMD进行了优化设计，同时研究了结构的抗震性能。结果表明，对于这种四塔连接结构，摩擦摆调谐质量阻尼器（FPTMD）在减震方面具有很好的效果。结构可以满足抗震设计要求。

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  • 来源
    《Shock and vibration》 |2018年第9期|1865761.1-1865761.19|共19页
  • 作者

    Wu Xiaohan; Wang Jun; Zhou Jiangyong;

  • 作者单位

    Tongji Univ, Res Inst Struct Engn & Disaster Reduct, Coll Civil Engn, Shanghai 200092, Peoples R China;

    Tongji Univ, Res Inst Struct Engn & Disaster Reduct, Coll Civil Engn, Shanghai 200092, Peoples R China;

    Tongji Univ, Res Inst Struct Engn & Disaster Reduct, Coll Civil Engn, Shanghai 200092, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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