竜巻状気流による風力と部材耐力を考慮した建築物外装材の有限要素解析

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タイトル別名
  • STUDY ON FINITE ELEMENT ANALYSIS FOR THE BUILDING CLADDING USING TORNADO-LIKE WIND INDUCED PRESSURE AND STRENGTH DATA
  • タツマキジョウ キリュウ ニ ヨル フウリョク ト ブザイ タイリョク オ コウリョ シタ ケンチクブツ ガイソウザイ ノ ユウゲン ヨウソ カイセキ

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This paper studies structural vulnerability of steel roofing and walls subjected to tornado-induced load. Using Finite Element (FE) method, the presented methodology will predict the successive stages of structural damage by a translating tornado. Wind pressure experimental data was applied to the FE model as the dynamic effects of changing pressures. The results of FE analysis show that the model case with a dominant opening is more vulnerable than the model case without it and extensive failure is observed under the maximum tangential velocity of 60m/s and more, which is consistent with past actual damage. The methodology described here will enable accurate prediction of tornado-induced damage to cladding of low-rise buildings.

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