Wind and Structures

  • 제21권1호
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  • Pages.63-84
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  • 2015
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

POD analysis of crosswind forces on a tall building with square and H-shaped cross sections

  • Cheng, L. (Department of Civil Engineering, The University of Hong Kong) ;
  • Lam, K.M. (Department of Civil Engineering, The University of Hong Kong) ;
  • Wong, S.Y. (Department of Civil Engineering, The University of Hong Kong)
  • 투고 : 2014.12.19
  • 심사 : 2015.04.23
  • 발행 : 2015.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

The shape of a tall building has significant impact on wind force generation and wind-induced dynamic response. To study the effect of recessed cavities, wind excitations on a wind-tunnel model of an H-section tall building were compared with those on a square-section building model. Characteristics of the fluctuating wind pressures on the side faces of the two tall buildings and their role in the generation of crosswind forces on the buildings were investigated with the space-time statistical tool of proper orthogonal decomposition (POD). This paper also compares the use of different pressure data sets for POD analysis in situations where pressures on two different surfaces are responsible for the generation of a wind force. The first POD mode is found to dominate the generation of crosswind excitation on the buildings.

키워드

참고문헌

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피인용 문헌

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  4. Effect of aerodynamic modifications on the surface pressure patterns of buildings using proper orthogonal decomposition vol.32, pp.3, 2015, https://doi.org/10.12989/was.2021.32.3.227
  5. Pressure pattern recognition in buildings using an unsupervised machine-learning algorithm vol.214, pp.None, 2021, https://doi.org/10.1016/j.jweia.2021.104629
  6. Machine learning-enabled estimation of crosswind load effect on tall buildings vol.220, pp.None, 2015, https://doi.org/10.1016/j.jweia.2021.104860