Local buckling of steel plates in concrete-filled thin-walled steel tubular beam-columns
Article
Article Title | Local buckling of steel plates in concrete-filled thin-walled steel tubular beam-columns |
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ERA Journal ID | 4225 |
Article Category | Article |
Authors | Liang, Qing Quan (Author), Uy, Brian (Author) and Liew, J. Y. Richard (Author) |
Journal Title | Journal of Constructional Steel Research |
Journal Citation | 63 (3), pp. 396-405 |
Number of Pages | 10 |
Year | 2007 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0143-974X |
1873-5983 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.jcsr.2006.05.004 |
Web Address (URL) | http://www.elsevier.com/wps/find/journaldescription.cws_home/405901/description#description |
Abstract | [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. |
Keywords | effective width, finite element analysis, local buckling, post-local buckling, steel plates, strength |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Department of Agricultural, Civil and Environmental Engineering |
University of New South Wales | |
National University of Singapore |
https://research.usq.edu.au/item/9xz2v/local-buckling-of-steel-plates-in-concrete-filled-thin-walled-steel-tubular-beam-columns
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