Towards Better Assessment of Wind Speed Exceeding Probability considering the Most Influential Wind Directions around Building

DOI
  • ZHANG BINGCHAO
    Department of Architecture, Graduate School of Engineering, the University of Tokyo
  • OOKA Ryozo
    Institute of Industrial Science, the University of Tokyo.
  • KIKUMOTO Hideki
    Institute of Industrial Science, the University of Tokyo.

Bibliographic Information

Other Title
  • 建物周辺における最大風速発生風向を考慮した風速超過確率評価法の提案

Abstract

<p>"Evaluation scale based on the exceedance probability of daily maximum instantaneous wind speed" by Murakami et al. is widely used as the wind environment evaluation scale of the pedestrian height around building. However, the commonly used calculation method of the exceedance probability of daily maximum instantaneous wind speed remains the following two problems. First, depending on the characteristics of the airflow around the building, the day maximum wind speed at the evaluation point is not necessarily caused by the day maximum of the natural wind. Furthermore, 16 wind direction division intervals may not be so sufficient that there is a possibility that the maximum wind speed at the evaluation point will not be captured. Therefore, in order to solve the above problems, we proposed an improved method to evaluate the exceedance probability of daily maximum instantaneous wind speed. Based on the meteorological data of Tokyo and CFD calculation, we calculated the daily maximum wind speed around the 2:1:1 prismatic model and the trend of underestimation of the exceedance probability by the conventional method is also shown in this paper.</p>

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Keywords

Details 詳細情報について

  • CRID
    1390001288146200192
  • NII Article ID
    130007662520
  • DOI
    10.14887/jaweam.2019.0_125
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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