Numerical Investigation of the Punching Resistance of Reinforced Concrete Flat Plates
Publication: Journal of Structural Engineering
Volume 144, Issue 10
Abstract
Nonlinear finite-element analyses are used to numerically investigate the punching shear resistance of reinforced concrete flat plate structures. Material nonlinearity is based principally on the formulations of the disturbed stress field model, a smeared crack reinforced concrete modeling procedure. Low-cost three-dimensional solid finite elements and one-dimensional truss bar finite elements are used to represent concrete and steel reinforcement, respectively. Requiring only easily defined concrete material properties and employing fundamental finite-element meshing techniques, the modeling approach was found to provide good response estimates for slab–column connection assembly tests under concentric shear loading conditions and was shown to effectively capture the effects of design parameters on slab punching shear performance: reinforcement ratio, column size, and slab thickness. The validated modeling approach was used to perform a brief numerical investigation on the effects of boundary conditions on the punching shear capacity of multibay flat plates. The results from the investigation were compared to the response obtained for an equivalent isolated slab–column assembly specimen and to existing code provisions and two-way shear analysis procedures.
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Published In
Journal of Structural Engineering
Volume 144 • Issue 10 • October 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Aug 28, 2017
Accepted: Mar 9, 2018
Published online: Jul 9, 2018
Published in print: Oct 1, 2018
Discussion open until: Dec 9, 2018
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