Experimental Performance of Steel Fiber Reinforced Concrete Bridge Deck
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Volume 23, Issue 10
Abstract
A full-scale steel fiber reinforced concrete (SFRC) bridge deck was tested to investigate the behavior under two-way action. The deck was designed to reduce the amount of traditional reinforcing bars in a design controlled by service-limit criteria. The SFRC is intended to reduce the strains in the steel at service limits. Loads were applied to simulate the single and tandem loads in the continuous spans of the bridge deck and a single tandem load in the overhang. A companion test program tested slab strips to establish the one-way flexural response with and without reinforcing bars. One-way strength was used in a yield-line analysis to predict the experimental capacity of the specimens. Theoretical capacities were significantly less than the experimental strength for interior loads where significant multiple-cracking effects were observed from the SFRC. In the overhang where membrane action and load redistribution were not possible, yield-line analysis predicted the experimental capacity.
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Acknowledgments
The research presented here was funded by the Arizona DOT. The findings and opinions are those of the authors. The authors thank Codi D. McKee for assistance with creating the figures.
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Published In
Journal of Bridge Engineering
Volume 23 • Issue 10 • October 2018
Copyright
© 2018 American Society of Civil Engineers.
History
Received: Aug 11, 2017
Accepted: Apr 10, 2018
Published online: Jul 23, 2018
Published in print: Oct 1, 2018
Discussion open until: Dec 23, 2018
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