The Effects of Roof Pitch on Unsteady Pressure on a Gable Roof Structure under a Step-function-like Gust

• Otsubo Kazuhiro

  Kyushu University

• Maeda Junji

  Kyushu University

• Tamura Naoya

  Kyushu University

• Takahashi shunsuke

  Kyushu University

• Tomokiyo Eriko

  Kyushu University

Bibliographic Information

Other Title

• 切妻屋根建物の突風風圧力分布に及ぼす屋根勾配の影響

Abstract

To investigate the effects of roof pitch on unsteady wind pressure around a gable roof structure, we measured unsteady wind pressures on gable roof bodies with several roof pitches subjected to a step-function-like gust using a specially-equipped wind tunnel. The results showed an overshoot wind pressure coefficient, which was a peak wind pressure coefficient while developing of overshoot phenomenon, was much bigger than that in a steady flow, and the overshoot wind pressure coefficient increased with a decrease in a non-dimensional rise time. It was found that the rate of increase depended on the measurement position and was strongly affected by the pitch of gable roof.

Journal

• PROCEEDINGS OF NATIONAL SYMPOSIUM ON WIND ENGINEERING

  PROCEEDINGS OF NATIONAL SYMPOSIUM ON WIND ENGINEERING 23 (0), 235-, 2014

  Japan Association for Wind Engineering

Keywords

• Unsteady wind pressure
• Short-rise-time gust
• Overshoot of wind pressure
• Gable roof body

Details

• CRID: 1390001205592839168
• NII Article ID: 130005478144
• DOI: 10.14887/kazekosymp.23.0_235
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed