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Question Vérifications des contraintes normales


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j'ai une section d'acier de type I : fy=355MPa.

je suis en train de vérifier les contraintes normales.

j'ai trouvé :

contrainte de compression :

segma supérieur = Mmax/w est supérieur à fy/1,15.

contrainte de traction :

segma inférieur = Mmax/w' est supérieur à fy/1,15.

les deux contraintes ne sont pas vérifiées.

qcq je doit faire


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