Relationship of Overshoot Wind Forces Acting on Gable Roof Structures to Pressure Distributions Caused by Sudden-Changes of Wind Velocity

• OTSUBO Kazuhiro

  Graduate School of Human-environment Studies, Kyushu University

• MAEDA Junji

  Faculty of Human-environment, Kyushu University

Bibliographic Information

Other Title

• 風速急変に因る切妻屋根建物のオーバーシュート風力と圧力分布の関係
• フウソク キュウヘン ニ ヨル キリズマヤネ タテモノ ノ オーバーシュート フウリョク ト アツリョク ブンプ ノ カンケイ

Abstract

To investigate the overshoot phenomenon of wind force caused by sudden changes of wind velocity, we measured wind forces acting on gable roof structures by a gust wind tunnel test and simulated the experimental results using CFD analysis. Our result showed that although the occurrence time of an overshoot peak drag force was different from that of a lift force, the bigger peak of drag and lift forces were generated by a gust wind with a shorter non-dimensional rise time. It was found that the first peak drag force appeared during an increasing gust wind velocity and a peak lift force followed after the gust reached a target wind velocity.

Journal

• Journal of Wind Engineering

  Journal of Wind Engineering 40 (3), 74-81, 2015

  Japan Association for Wind Engineering

Keywords

• <I>unsteady wind force</I>
• <I>short-rise-time gust</I>
• <I>gable roof body</I>

Details

• CRID: 1390001205229653632
• NII Article ID: 130005117221
• NII Book ID: AN10072785
• ISSN: 09121935
• ISSN: 1349340X
• ISSN: 13493507
• DOI: 10.5359/jwe.40.74
• NDL BIB ID: 026647164
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026647164
• Web Site: https://www.jstage.jst.go.jp/article/jwe/40/3/40_74/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed