Influence of boundary condition on channel section column behaviour
Keywords:
torsional lateral buckling, boundary condition, pure bending, cold formed steel sections, Finite Element Method analysisAbstract
The FEM-based, numerical study of the influence of the boundary conditions on distorsional lateral buckling phenomena during bending of cold formed steel bars with different channel sections have been performed. Beams with lip channel crosssection, channel cross-section and top-hat cross-section had been analysed. Six different boundary conditions were examined for each cross-section to check their influence on buckling load with corresponding buckling mode and describe the thin-walled beam behaviour. The proposed model of boundary conditions has been assumed the same as in other papers, where the obtained results have been compared with those obtained based on other analytical-numerical methods or within experimental tests.
References
KOLAKOWSKI, Zbigniew, JANKOWSKI, Jacek, Interactive buckling of steel C-beams with different lengths – From short to long beams, Thin-Walled Structures, 125, pp. 203-210, 2018.
KOLAKOWSKI, Zbigniew, MANIA, Radoslaw, Semi-analytical method versus the FEM for analysis of the local post-buckling, Composite Structures, 97, pp. 99–106, 2013.
KOLAKOWSKI, Zbigniew, URBANIAK, Mariusz, Influence of the distortional-lateral buckling mode on the interactive buckling of short channels, Thin-Walled Struct, 109, pp. 296–303, 2016.
NIU, S., RASMUSSEN, K.J.R., FAN, F., Distortional-global interaction buckling of stainless steel C-beams: Part I – experimental investigation, J. Constr. Steel Res., 96, pp. 127-139, 2014.
NIU, S., RASMUSSEN, K.J.R., FAN, F., Distortional-global interaction buckling of stainless steel C-beams: Part II – numerical study and design, J. Constr. Steel Res., 96, pp. 40-53, 2014.
ABAMBRES, Miguel, CAMOTIM, Dinar, SILVESTRE, Nuno, Modal decomposition of thinwalled member collapse mechanisms, Thin-Walled Structures, 74, pp. 269–291, 2014.
ADANY, Sandor, SCHAFER, Benjamin W., A full modal decomposition of thin-walled, singlebranched open cross-section members via the constrained finite strip method, Journal of Constructional Steel Research, 64, 1, pp. 12-29, 2008.
MARTINS, A.D., LANDESMANN, A., CAMOTIN, D., DINIS, P.B., Distortional failure of coldformed steel beams under uniform bending: Behaviour, strength and DSM design, ThinWalled Structures, 118, pp. 196-213, 2017.
KUBIAK, Tomasz, KOLAKOWSKI, Zbigniew, SWINIARSKI, Jacek, URBANIAK, Mariusz, GLISZCZYNSKI, Adrian, Local buckling and post-buckling of composite channel-section beams – Numerical and experimental investigations, Composites Part B, 91, pp. 176-188, 2016.
GLISZCZYNSKI, Adrian, CZECHOWSKI, Leszek, Collapse of channel section composite profile subjected to bending. Part I: Numerical investigations, Composite Structures, 178, pp. 383-394, 2017.
JAKUBCZAK, Patryk, GLISZCZYNSKI, Adrian, BIENIAS, Jaroslaw, MAJERSKI, Krzysztof, KUBIAK, Tomasz, Collapse of channel section composite profile subjected to bending. Part II: Failure analysis, Composite Structures, 179, pp. 1-20, 2017.
CHU, X.T., YE, Z.M., KETTLE, R., LI, L.Y., Buckling behaviour of cold-formed channel sections under uniformly distributed loads, Thin-Walled Structures, 43, 4, pp. 531-542, 2005.
Published
Issue
Section
Copyright (c) 2020 The Romanian Journal of Technical Sciences. Applied Mechanics.

This work is licensed under a Creative Commons Attribution 4.0 International License.