Shear Connection Nonlinearity and Deflections of Steel–Concrete Composite Beams: A Simplified Method
Publication: Journal of Structural Engineering
Volume 129, Issue 1
Abstract
In steel and concrete composite beams, the incomplete interaction between steel profile and concrete slab leads to an appreciable increase of the beam deflections with respect to full interaction behavior. Moreover, the concrete cracking in hogging moment regions of continuous beams needs to be considered. In this paper, a finite-element procedure considering nonlinear load–slip relationship for shear connectors is presented. Such a procedure accounts for the concrete slab cracking and the resulting tension stiffening effect; it also assumes different load–slip relationships for shear connectors in cracked slab. Some experimental comparisons show the accuracy of the proposed procedure. A wide parametric analysis is performed with reference to the evaluation of deflections for simply supported composite beams. Finally, a simplified method which is able to evaluate deflections for beams with nonlinear behaving shear connection is presented.
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Published In
Journal of Structural Engineering
Volume 129 • Issue 1 • January 2003
Pages: 12 - 20
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Jul 10, 2000
Accepted: May 14, 2002
Published online: Dec 13, 2002
Published in print: Jan 2003
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