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Coupled instabilities with distortional buckling in cold-formed steel lipped channel columns
Abstract The paper addresses the elastic post-buckling behaviours of cold-formed steel lipped channel simply supported columns affected by mode interaction phenomena involving distortional buckling, namely local/distortional, distortional/global (flexural-torsional) and local/distortional/global mode interaction. The results presented were obtained by means of Abaqus shell finite element analyses adopting column discretisations into fine 4-node element meshes. In order to enable a thorough assessment of all possible mode interaction effects, the column lengths and cross-section dimensions were carefully selected to ensure similar local, distortional and/or global buckling loads. One analyses otherwise identical (elastic) columns having initial geometrical imperfections (i) with various configurations (combinations of the competing critical buckling mode shapes) and (ii) sharing the same overall amplitude.
Coupled instabilities with distortional buckling in cold-formed steel lipped channel columns
Abstract The paper addresses the elastic post-buckling behaviours of cold-formed steel lipped channel simply supported columns affected by mode interaction phenomena involving distortional buckling, namely local/distortional, distortional/global (flexural-torsional) and local/distortional/global mode interaction. The results presented were obtained by means of Abaqus shell finite element analyses adopting column discretisations into fine 4-node element meshes. In order to enable a thorough assessment of all possible mode interaction effects, the column lengths and cross-section dimensions were carefully selected to ensure similar local, distortional and/or global buckling loads. One analyses otherwise identical (elastic) columns having initial geometrical imperfections (i) with various configurations (combinations of the competing critical buckling mode shapes) and (ii) sharing the same overall amplitude.
Coupled instabilities with distortional buckling in cold-formed steel lipped channel columns
Camotim, Dinar (author) / Dinis, Pedro B. (author)
Thin-Walled Structures ; 49 ; 562-575
2010-01-01
14 pages
Article (Journal)
Electronic Resource
English
Coupled instabilities with distortional buckling in cold-formed steel lipped channel columns
| Online Contents | 2011
LOCAL/DISTORTIONAL/GLOBAL BUCKLING MODE INTERACTION IN COLD-FORMED STEEL LIPPED CHANNEL COLUMNS
| British Library Conference Proceedings | 2009
ON THE DISTORTIONAL POST-BUCKLING BEHAVIOR OF COLD-FORMED LIPPED CHANNEL STEEL COLUMNS
| British Library Conference Proceedings | 2002