Performance of Steel Fibrous Reinforced Concrete Corbels Subjected to Vertical and Horizontal Loads
Publication: Journal of Structural Engineering
Volume 135, Issue 5
Abstract
A softened strut-and-tie macromodel able to reproduce the flexural behavior of corbels in plain and fibrous concrete and with the presence of steel bars, including softening of compressed struts and yielding of main and secondary steel bars, is presented in this paper. The main focus of the proposed model is the determination of the load-deflection curves of corbels subjected to the coupled effects of vertical and horizontal forces bearing in mind the influence of the type of concrete (normal or high strength), of the fiber percentage and of the arrangement and percentage of the main and secondary (horizontal stirrup) steel bars. A validation of the proposed model is made therefore with reference to some of the experimental data available in the literature and also to numerical results obtained by using a nonlinear finite-element program (ATENA-2D) able to analyze the flexural behavior of deep members. Finally some design considerations on the use of fibrous reinforced concrete in RC corbels are given.
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Acknowledgments
Support of this research by the Ministero dell’Istruzione, dell’Università e della Ricerca is gratefully acknowledged.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 135 • Issue 5 • May 2009
Pages: 519 - 529
Copyright
© 2009 ASCE.
History
Received: May 25, 2007
Accepted: Nov 27, 2008
Published online: May 1, 2009
Published in print: May 2009
Notes
Note. Associate Editor: Dat Duthinh
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