Combined distortional and overall flexural-torsional buckling of cold-formed stainless steel sections: design / Barbara Rossi in Journal of structural engineering, Vol. 136 N° 4 (Avril 2010)  

Combined distortional and overall flexural-torsional buckling of cold-formed stainless steel sections: design [texte imprimé] / Barbara Rossi, Auteur ; Jaspart, Jean-Pierre, Auteur ; Kim J. R. Rasmussen, Auteur . - 2010 . - pp. 361-396.
Génie Civil
Langues : Anglais (eng)
in Journal of structural engineering > Vol. 136 N° 4 (Avril 2010) . - pp. 361-396

Mots-clés :	Stainless steel structures Distortional buckling Member Interaction Design Direct strength method
Index. décimale :	624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes
Résumé :	This paper provides a critical summary of the European standards and design methods available for calculating the strength of cold-formed stainless steel compression members. The standards considered (so far mainly applied to columns failing by flexural buckling) are applied to the case of lipped channel section columns failing by combined distortional and overall flexural-torsional buckling. As observed during the tests presented in a companion paper, distortional buckling is found to have a considerable effect on the cross section resistance and is prone to interact with the global flexural-torsional mode. It is investigated how the different formulations account for the two buckling modes and their interaction and how accurate strength predictions they provide. A new direct strength method taking into account these failure modes is then presented and compared to the test results.
DEWEY :	624.17
ISSN :	0733-9445
En ligne :	http://ascelibrary.org/sto/resource/1/jsendh/v136/i4/p361_s1?isAuthorized=no