Nonlinear Quasi-Viscoelastic Behavior of Composite Beams Curved In-Plan
Publication: Journal of Engineering Mechanics
Volume 137, Issue 4
Abstract
A numerical formulation for the nonlinear quasi-viscoelastic (creep and shrinkage) analysis of steel-concrete composite beams that are curved in their plan is developed. The creep behavior of the concrete is considered by using the viscoelastic Maxwell-Weichert model, in which the aging effect of the concrete is taken into account. Geometric nonlinearities and the partial shear interaction that exist at the deck-girder interface in the tangential (or longitudinal) direction and in the radial (or horizontal) direction owing to the flexibility of the shear connectors are considered in the strain-displacement relationship. The modeling based on the developed formulation is validated by comparisons with available results reported in the literature. The effects of initial curvature, partial interaction, and geometric nonlinearity on the time-dependent behavior of curved composite beams are illustrated in selected examples.
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Acknowledgments
The work in this paper was supported by the Australian Research Council through a Discovery Project No. ARCDP0770539 awarded to the second writer. Additional support to the first writer was provided by the Faculty of Engineering at the University of New South WalesUniversity of New South Wales through an Early Career Research Grant. This support is gratefully acknowledged.
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Information
Published In
Journal of Engineering Mechanics
Volume 137 • Issue 4 • April 2011
Pages: 238 - 247
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Feb 9, 2010
Accepted: Aug 2, 2010
Published online: Sep 27, 2010
Published in print: Apr 1, 2011
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