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Experiment of a Liquid Damper Controlling Bi-directional Wind Responses of a Tall Building

초고층 건물의 양방향 풍응답 제어를 위한 액체댐퍼 실험

  • 이혜리 (단국대학교 건축공학과) ;
  • 민경원 (단국대학교 건축대학 건축공학과)
  • Published : 2010.03.20

Abstract

This study deals with the design of a bi-directional damper using a tuned liquid damper(TLD) and a tuned liquid column damper(TLCD) for a SDOF building. Two dampers are usually needed to reduce wind-induced responses of tall buildings since they are along and across wind ones. The proposed damper has the advantage of controlling both responses with a single damper. The damper used in this study behaves as both a TLCD in a specific translational direction and a TLD in the other orthogonal direction. This paper presents experimental verification to confirm its control performance. First, shaking table test is carried out to investigate reducing responses by the damper. Control performance of the damper is expressed by the transfer function from shaking table accelerations to SDOF building ones. Testing results show that the damper reduced bi-directional responses of a SDOF building. Also, it reduced torsion responses.

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