Wind and Structures

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A systematic comparison of the wind profile codifications in the Western Pacific Region

  • Jiayao Wang (Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology) ;
  • Tim K.T. Tse (Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology) ;
  • Sunwei Li (Shenzhen International Graduate School, Tsinghua University) ;
  • Tsz Kin Chan (Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology) ;
  • Jimmy C.H. Fung (Department of Mathematics, The Hong Kong University of Science and Technology)
  • Received : 2022.08.31
  • Accepted : 2023.07.05
  • Published : 2023.08.25
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Abstract

Structural design includes calculation of the wind speed as one of the major steps in the design process for wind loading. Accurate determination of design wind speed is vital in achieving safety that is consistent with the economy of construction. It is noticeable that many countries and regions such as Hong Kong, Japan and Australia regularly make amendments to improve the accuracy of wind load estimations for their wind codes and standards. This study compares the latest Hong Kong wind code published in 2019, which is generally known as the Code of Practice on Wind Effects in Hong Kong - 2019, with the latest revision of the AIJ Recommendations for Loads on Buildings - 2015 (Japan), and the Australian/New Zealand Standard, AS/NZS 1170.2:2021. The comparisons include the variations between the design wind speed and the vertical profiles of wind speed multipliers. The primary purpose of this study was to show any differences in the basic design wind speed and exposure factor estimations among the three economies located in the Western Pacific Ocean. Subsequently, the reasons for such underlying variations between the three documents, are discussed, together with future development trends.

Keywords

Acknowledgement

The work described in this paper was supported by grants from the Research Grants Council (RGC) of the HKSAR, China by the General Research Fund (GRF) 16207118.

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