Seismic vibration control of building structures with multiple tuned mass damper floors integrated

Ping Xiang*, Akira Nishitani

*この研究の対応する著者

研究成果: Article査読

66 被引用数 (Scopus)

抄録

Floor isolation system (FIS) achieving very small floor accelerations has been used to ensure human comfortability or protect important equipments in buildings. Tuned mass damper (TMD) with large mass ratios has been demonstrated to be robust with respect to the changes in structural properties. This paper presents the concept of a TMD floor vibration control system, which takes advantages of both the FIS and TMD. Such a system is called 'TMD floor system' herein. The TMD floor system (TMDFS) in which building floors serve as TMDs can achieve large mass ratio without additional masses. Furthermore, multiple TMD floors installed in a building can control multimode vibrations. Then, an optimal design process, where the objective function is set as the maximum magnitude of the frequency response functions of inter-storey drifts, is proposed to determine the TMD floor parameters. Additionally, the multimode approach is applied to determine the optimal locations of TMD floors if not all of the floors in a building can serve as TMDs. In addition to the numerical simulations, a scaled model shaking table experiment is also conducted. Both the numerical and experimental results show that the absolute accelerations of the TMD floors are smaller than those of the main structural storeys, which indicates the TMDFS maintains the merit of FIS while greatly reducing seismic responses of main structures.

本文言語English
ページ(範囲)909-925
ページ数17
ジャーナルEarthquake Engineering and Structural Dynamics
43
6
DOI
出版ステータスPublished - 2014 5月

ASJC Scopus subject areas

  • 地盤工学および土木地質学
  • 地球惑星科学(その他)

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