Journal of South China University of Technology(Natural Science Edition) ›› 2012, Vol. 40 ›› Issue (4): 118-124.

• Architecture & Civil Engineering • Previous Articles     Next Articles

Rapid Algorithm and Its Application of Wind-Induced Vibration Response of Super High-Rise Building Under the Control of Multiple Tuned Mass Dampers

Li Xiao-kang  Xie Zhuang-ning  Wang Zhan   

  1. State Key Laboratory of Subtropical Building Science,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2011-09-20 Revised:2012-03-07 Online:2012-04-25 Published:2012-03-01
  • Contact: 谢壮宁(1963-) ，男，博士，教授，主要从事结构抗风研究． E-mail: znxie@scut.edu.cn E-mail:lixiaokang82@ sina.com
  • About author:李小康(1982-) ，男，博士后，主要从事结构抗风研究．
  • Supported by:

    国家自然科学基金重大研究计划重点项目( 90715040) ; 国家自然科学基金资助项目( 51078146) ; 亚热带建筑科学国家重点实验室自主研究课题( 2008ZC20)

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Abstract:

Proposed in this paper is a rapid algorithm based on the harmonic excitation method,which is used to calculate the wind-induced vibration ( WIV) of large-scale complex structures under the control of multiple tuned mass dampers ( MTMD) according to the time-historic wind loads obtained in the rigid-model wind tunnel test. Then,by taking the Shenzhen Kingkey Finance Tower ( KFT) with a height of 439 m as a research objective,the WIV response of KFT under the control of single tuned mass damper ( STMD) is analyzed,and the effects of MTMD configuration as well as the natural frequency,damping ratio and mass of STMD on the WIV response are compared and discussed. The results show that ( 1) the proposed rapid algorithm is accurate and effective in calculating the WIV; ( 2) a STMD installed at the top floor can effectively mitigate the WIV of KFT; and ( 3) though STMD is more effective than MTMD with the same total TMD mass,MTMD can still reduce the peak acceleration of WIV response at the top of the building by about 30%.

Key words: super high-rise building, wind-induced vibration response, tuned mass damper, wind tunnel test