Statistical Estimation of Observed Gusty Wind and Estimate of the Associated Wind Force

• Tomokiyo Eriko

  Faculty of Human-Environment in Studies, Kyushu University

• Maeda Junji

  Faculty of Human-Environment in Studies, Kyushu University

• Nogata Kaori

  Graduate School of Human-Environment in Studies, Kyushu University

• Takeuchi Takashi

  Faculty of Engineering, Kobe University

Bibliographic Information

Other Title

• 観測突風の統計的評価と車輌形状物体のオーバーシュート風力の試算

Abstract

The overshooting of unsteady aerodynamic force on structures related to gusty winds has been investigated. However, there is very little observation of gusty winds which damage structures and so their actual features haven't been clear yet. In this paper, we analyzed the statistical information of gusty winds to estimate unsteady wind forces acting on actual structures. We matched the selected gusty winds with experimental results and calculated wind speeds equivalent to wind force overshooting, estimating unsteady wind forces on an actual sized rail-like body. Then the equivalent wind speeds were compared with observed values. Our results showed that the estimated wind forces were approximated with probability density function and the equivalent wind speeds generating wind forces with 10% probabilities of exceedance are higher than observed wind speeds.

Journal

• PROCEEDINGS OF NATIONAL SYMPOSIUM ON WIND ENGINEERING

  PROCEEDINGS OF NATIONAL SYMPOSIUM ON WIND ENGINEERING 22 (0), 13-18, 2012

  Japan Association for Wind Engineering

Keywords

• Short-time-rising gust
• Non-dimensional rise time
• Overshoot of wind force
• Equivalent wind gust

Details

• CRID: 1390282680570270976
• NII Article ID: 130004644467
• DOI: 10.14887/kazekosymp.22.0.13.0
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed