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Title: Thin-walled steel box columns under biaxial loading
Authors: Shanmugam, N.E. 
Liew, J.Y.Richard 
Lee, S.L. 
Issue Date: Nov-1989
Citation: Shanmugam, N.E.,Liew, J.Y.Richard,Lee, S.L. (1989-11). Thin-walled steel box columns under biaxial loading. Journal of structural engineering New York, N.Y. 115 (11) : 2706-2726. ScholarBank@NUS Repository.
Abstract: A numerical method to investigate the ultimate strength behavior if thin-walled steel box columns subjected to axial load and biaxial end moments is presented in this paper. The columns are of uniform cross section along the length and simply supported at the ends. The local buckling of the component plates is taken into account by applying the effective width formulas proposed in an earlier paper. Moment-curvature-thrust relationships for a locally buckled box section is developed by using the tangent stiffness method, and the column analysis is then carried out by integrating, numerically, the moment-curvature-thrust relationship along the length. Due allowance is made in the analysis to account for imperfections such as initial column deflections and welding residual stresses. The accuracy of the method is established by comparison with limited experimental results for uniaxially loaded columns. Results for biaxially loaded columns are presented in the form of interaction diagrams. Several parameters such as plate slenderers column slenderness, level of residual stress, axial load, and load path have been considered.
Source Title: Journal of structural engineering New York, N.Y.
ISSN: 07339445
Appears in Collections:Staff Publications

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