Strength analysis of steel-concrete composite beams in combined bending and shear

Liang, Qing Quan and Uy, Brian and Bradford, Mark A. and Ronagh, Hamid R. (2005) Strength analysis of steel-concrete composite beams in combined bending and shear. Journal of Structural Engineering, 131 (10). pp. 1593-1600. ISSN 0733-9445

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Abstract

[Abstract]: Despite experimental evidences, the contributions of the concrete slab and composite action to the vertical shear strength of simply supported steel–concrete composite beams are not considered in current design codes, which lead to conservative designs. In this paper, the finite element method is used to investigate the flexural and shear strengths of simply supported composite beams under combined bending and shear. A three-dimensional finite element model has been developed to account for geometric and material nonlinear behavior of composite beams, and verified by experimental results. The verified finite element model is than employed to quantify the contributions of the concrete slab and composite action to the moment and shear capacities of composite beams. The effect of the degree of shear connection on the vertical shear strength of deep composite beams loaded in shear is studied. Design models for vertical shear strength including contributions from the concrete slab and composite action and for the ultimate moment–shear interaction are proposed for the design of simply supported composite beams in combined bending and shear. The proposed design models provide a consistent and economical design procedure for simply supported composite beams.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Deposited with permissision of publisher. Link to published version provided by Publisher.
Depositing User: Dr Stephen Liang
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 11 Oct 2007 01:12
Last Modified: 02 Jul 2013 22:46
Uncontrolled Keywords: steel-concrete composite beams, bending, composite structures, finite element analysis, shear strength
Fields of Research (FOR2008): 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
Identification Number or DOI: doi: 10.1061/(ASCE)0733-9445(2005)131:10(1593)
URI: http://eprints.usq.edu.au/id/eprint/2673

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