Étude de la résistance et de la stabilité des tôles courbes cylindriques en acier : applications aux ouvrages d'art

Abstract : The use of curved panels for the construction of steel bridges has become more and more popular due to structural performance, traffic and aesthetic requirements. Their design is however made difficult due to a lack of specifications, especially in European Standards. The use of finite element modeling is often necessary. This however requires very sophisticated and expensive models in terme of calculation times. The present study aims thus at developing a method for predicting the ultimate strength of cylindrical curved panels subjected to uniform axial compression. This method is based on the formal procedure recommended by Eurocode 3 for all types of stability verifications. The agreement with the numerical results is thus very good. However, this approach seems complex to reproduce in practice user when confronting a new problem such a combinaison of loading. An alternative method based on design of computer experiment is thus developed. Based on statistic notions, this turnkey methodology provides good results with the fewest simulations possible
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Khanh Le Tran. Étude de la résistance et de la stabilité des tôles courbes cylindriques en acier : applications aux ouvrages d'art. Autre. Université Paris-Est, 2012. Français. ⟨NNT : 2012PEST1163⟩. ⟨pastel-00808411⟩

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