Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jcsr.2006.05.004
Title: Local buckling of steel plates in concrete-filled thin-walled steel tubular beam-columns
Authors: Liang, Q.Q.
Uy, B.
Richard Liew, J.Y. 
Keywords: Effective width
Finite element analysis
Local buckling
Post-local buckling
Steel plates
Strength
Issue Date: Mar-2007
Source: Liang, Q.Q., Uy, B., Richard Liew, J.Y. (2007-03). Local buckling of steel plates in concrete-filled thin-walled steel tubular beam-columns. Journal of Constructional Steel Research 63 (3) : 396-405. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jcsr.2006.05.004
Abstract: The availability of high strength steels and concrete leads to the use of thin steel plates in concrete-filled steel tubular beam-columns. However, the use of thin steel plates in composite beam-columns gives a rise to local buckling that would appreciably reduce the strength and ductility performance of the members. This paper studies the critical local and post-local buckling behavior of steel plates in concrete-filled thin-walled steel tubular beam-columns by using the finite element analysis method. Geometric and material nonlinear analyses are performed to investigate the critical local and post-local buckling strengths of steel plates under compression and in-plane bending. Initial geometric imperfections and residual stresses presented in steel plates, material yielding and strain hardening are taken into account in the nonlinear analysis. Based on the results obtained from the nonlinear finite element analyses, a set of design formulas are proposed for determining the critical local buckling and ultimate strengths of steel plates in concrete-filled steel tubular beam-columns. In addition, effective width formulas are developed for the ultimate strength design of clamped steel plates under non-uniform compression. The accuracy of the proposed design formulas is established by comparisons with available solutions. The proposed design formulas can be used directly in the design of composite beam-columns and adopted in the advanced analysis of concrete-filled thin-walled steel tubular beam-columns to account for local buckling effects. © 2006 Elsevier Ltd. All rights reserved.
Source Title: Journal of Constructional Steel Research
URI: http://scholarbank.nus.edu.sg/handle/10635/65770
ISSN: 0143974X
DOI: 10.1016/j.jcsr.2006.05.004
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