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Local and post-local buckling of double skin composite panels

Liang, Qing Quan and Wright, Howard D and Bradford, Mark A (2003) Local and post-local buckling of double skin composite panels. Proceedings of The Institution of Civil Engineers (ICE) - Structures and Buildings, 156 (2). pp. 111-119. ISSN 0965-0911

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Abstract

Double skin composite (DSC) panels are constructed by filling concrete between two steel plates welded with stud shear connectors at a regular spacing. Steel plates in DSC panels used as two-way slabs or shearwalls may buckle locally between stud shear connectors when subjected to in-plane biaxial compression. This paper investigates the local and post-local buckling behaviour of biaxially compressed steel plates restrained by shear connectors and concrete in DSC panels by using the finite element modelling technique. Local buckling coefficients are obtained for steel plates with various aspect ratios, biaxial loading and boundary conditions by incorporating the shear stiffness effect of stud shear connectors. These buckling coefficients can be used to determine limiting width-to-thickness ratios for steel plates and the distribution of stud shear connectors. A geometric and material non-linear analysis is undertaken to quantify the post-local buckling strength of steel plates under biaxial compression. The initial imperfections of steel plates and non-linear shear–slip characteristics of stud shear connectors are taken into account in the post-local buckling analysis. Based on numerical results, biaxial strength interaction curves and formulae are developed for the ultimate strength design of steel plates in double skin composite construction.

Item Type: Article
Uncontrolled Keywords: ResPubID18695, Double skin composite, buckling, biaxial
Subjects: Faculty/School/Research Centre/Department > School of Engineering and Science
Depositing User: VUIR
Date Deposited: 15 Apr 2011 00:25
Last Modified: 28 Jan 2015 04:33
URI: http://vuir.vu.edu.au/id/eprint/2380
DOI: 10.1680/stbu.2003.156.2.111
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Citations in Scopus: 11 - View on Scopus

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