Abstract

Ce type de poteaux a une instabilite statique globale sous l'action combinee de leur poids, de la traction ou de la compression exercee a leur extremite superieure et des pressions internes et externes statiques dues aux fluides dans le champ de gravite. Le postflambage de ces poteaux apres que des instabilites statiques se soient produites a une influence sur la sensibilite des charges de flambage ou la charge laterale et a la deformation initiale, sur l'amplitude de la deformation de preflambage et la forme du chemin d'equilibre du poteau charge lateralement. Application a l'etude de la stabilite elastique des colonnes montantes marines

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