Structural Engineering and Mechanics

  • 제64권4호
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  • Pages.449-459
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  • 2017
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

A Kalman filter based algorithm for wind load estimation on high-rise buildings

  • Zhi, Lun-hai (School of Civil Engineering and Architecture, Wuhan University of Technology) ;
  • Yu, Pan (School of Civil Engineering and Architecture, Wuhan University of Technology) ;
  • Tu, Jian-wei (Key Laboratory of Roadway Bridge and Structural Engineering, Wuhan University of Technology) ;
  • Chen, Bo (Key Laboratory of Roadway Bridge and Structural Engineering, Wuhan University of Technology) ;
  • Li, Yong-gui (School of Civil Engineering, Hunan University of Science and Technology)
  • 투고 : 2017.01.02
  • 심사 : 2017.07.10
  • 발행 : 2017.11.25
⟨ 이전 논문 다음 논문 ⟩

초록

High-rise buildings are generally sensitive to strong winds. The evaluation of wind loads for the structural design, structural health monitoring (SHM), and vibration control of high-rise buildings is of primary importance. Nevertheless, it is difficult or even infeasible to measure the wind loads on an existing building directly. In this regard, a new inverse method for evaluating wind loads on high-rise buildings is developed in this study based on a discrete-time Kalman filter. The unknown structural responses are identified in conjunction with the wind loads on the basis of limited structural response measurements. The algorithm is applicable for estimating wind loads using different types of wind-induced response. The performance of the method is comprehensively investigated based on wind tunnel testing results of two high-rise buildings with typical external shapes. The stability of the proposed algorithm is evaluated. Furthermore, the effects of crucial factors such as cross-section shapes of building, the wind-induced response type, errors of structural modal parameters, covariance matrix of noise, noise levels in the response measurements and number of vibration modes on the identification accuracy are examined through a detailed parametric study. The research outputs of the proposed study will provide valuable information to enhance our understanding of the effects of wind on high-rise buildings and improve codes of practice.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Central Universities, Fok Ying Tong Education Foundation

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