Combined distortional and overall flexural-torsional buckling of cold-formed stainless steel sections: Design

[en] 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 tests results.

Disciplines :

Civil engineering

Author, co-author :

Rossi, Barbara ; Université de Liège - ULiège > Département Argenco : Secteur MS2F > Adéquat. struct. aux exig. de fonct.& perfor. techn.-écon.

Jaspart, Jean-Pierre ; Université de Liège - ULiège > Département Argenco : Secteur MS2F > Adéquat. struct. aux exig. de fonct.& perfor. techn.-écon.

Rasmussen, Kim J.R.; University of Sydney

Language :

English

Title :

Combined distortional and overall flexural-torsional buckling of cold-formed stainless steel sections: Design

Publication date :

April 2010

Journal title :

Journal of Structural Engineering

ISSN :

0733-9445

eISSN :

1943-541X

Publisher :

American Society of Civil Engineers, Reston, United States - Virginia

Volume :

136

Issue :

Pages :

361-369

Peer reviewed :

Peer reviewed

Available on ORBi :

since 27 November 2009

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Bibliography

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