Numerical and Experimental Analysis of a Waffle Slab Parking Floor
Publication: Practice Periodical on Structural Design and Construction
Volume 19, Issue 4
Abstract
Rational and sophisticated structural solutions are essential requirements for structural designers, as a consequence of architectural design evolution and new building management concepts. Thus, waffle slabs turn out to be an interesting alternative, despite their laborious numerical modeling. It is necessary to increase knowledge about the structural behavior of and improve the theoretical models used for the simulation of these slabs. To better understand the behavior of RC waffle slabs, and more realistically quantify stresses and displacements of this kind of element under actual work conditions, a real-scale ribbed slab was tested and the results are presented in this paper. The chosen structure, designed to serve as a parking floor, was instrumented with strain and deflection gauges to assess the deformations and deflections developed under some induced loading conditions. A grillage model and a three-dimensional finite-element model were used for the numerical study. The data collected indicates that both strategies can be used to obtain adequate estimates of deflections and bending moments.
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Acknowledgments
The authors acknowledge the Brazilian Ministry of Science’s National Research Council (CNPq) and the Brazilian Ministry of Education’s Higher Education Human Resources Development Agency (CAPES) for providing the financial support needed to develop this project. The authors also express their appreciation for the technical support given by the research teams at the Laboratory of Testing and Structural Modeling (LEME) of the Federal University of Rio Grande do Sul (UFRGS), Projetak–Tavares Eng. Associados S/C Ltda., and Construtora Tedesco for their support of this work.
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Published In
Practice Periodical on Structural Design and Construction
Volume 19 • Issue 4 • November 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Aug 13, 2012
Accepted: Jan 30, 2013
Published online: Feb 1, 2013
Discussion open until: Aug 4, 2014
Published in print: Nov 1, 2014
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