Wind and Structures

  • 제23권4호
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  • Pages.313-350
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  • 2016
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Evaluation of wind loads and wind induced responses of a super-tall building by large eddy simulation

  • Lu, C.L. (College of Civil Engineering, Hunan University) ;
  • Li, Q.S. (Department of Architecture and Civil Engineering, City University of Hong Kong) ;
  • Huang, S.H. (School of Engineering Science, University of Science and Technology of China) ;
  • Tuan, Alex Y. (Department of Civil Engineering, Tamkang University) ;
  • Zhi, L.H. (College of Civil Engineering, Hunan University) ;
  • Su, Sheng-chung (Central Weather Bureau)
  • 투고 : 2015.01.05
  • 심사 : 2016.07.19
  • 발행 : 2016.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

Taipei 101 Tower, which has 101 stories with height of 508 m, is located in Taipei where typhoons and earthquakes commonly occur. It is currently the second tallest building in the world. Therefore, the dynamic performance of the super-tall building under strong wind actions requires particular attentions. In this study, Large Eddy Simulation (LES) integrated with a new inflow turbulence generator and a new sub-grid scale (SGS) model was conducted to simulate the wind loads on the super-tall building. Three-dimensional finite element model of Taipei 101 Tower was established and used to evaluate the wind-induced responses of the high-rise structure based on the simulated wind forces. The numerical results were found to be consistent with those measured from a vibration monitoring system installed in the building. Furthermore, the equivalent static wind loads on the building, which were computed by the time-domain and frequency-domain analysis, respectively, were in satisfactory agreement with available wind tunnel testing results. It has been demonstrated through the validation studies that the numerical framework presented in this paper, including the recommended SGS model, the inflow turbulence generation technique and associated numerical treatments, is a useful tool for evaluation of the wind loads and wind-induced responses of tall buildings.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

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