MODEL OF WIND PRESSURES ON CIRCULAR FLAT ROOFS AND ITS APPLICATION TO LOAD ESTIMATION(Structures)

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  • 円形平面を持つ陸屋根に作用する風圧のモデル化と風荷重評価への応用(構造)
  • 円形平面を持つ陸屋根に作用する風圧のモデル化と風荷重評価への応用
  • エンケイ ヘイメン オ モツ リクヤネ ニ サヨウ スル フウアツ ノ モデルカ ト カゼカジュウ ヒョウカ エ ノ オウヨウ

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Abstract

The characteristics of wind pressures acting on a circular flat roof have been investigated, based on the data obtained from a wind tunnel experiment. A simple model of the pressure field is provided as a function of the geometric parameters of the building as well as of the turbulence parameters of the approach flow. A discussion is made of the application of the pressure field model to the wind load estimation, based on the gust effect factor approach and the LRC method. The gust effect factor and the equivalent static load distribution derived from the pressure field model are compared with those obtained from the time history of the pressures. The results indicate the validity of the pressure model.

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