Abstract
The mechanisms of shear transfer in fiber-reinforced polymer (FRP) reinforced concrete members with shear reinforcement are discussed, and it is explained how these were used to derive the shear design provisions of the Canadian standard for design and construction of building structures with FRPs. Subsequently, the accuracy of these provisions and the validity of their underlying assumptions are assessed by comparing the predicted shear strengths of over three hundred FRP-reinforced beams with their corresponding experimental values. Although the focus of the paper is mainly on beams with FRP shear reinforcement, for completeness beams with and without shear reinforcement are analyzed. It is determined that the mean and standard deviation of the ratio of the test to predicted shear strength of the beams without shear reinforcement are 1.16 and 0.24, respectively, whereas those of beams with shear reinforcement are 1.15 and 0.23. The strengths of these beams are also computed using the recommendations and it is shown that overall recently proposed Canadian method yields more accurate and consistent results.
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Acknowledgments
The authors would like to thank the Natural Sciences and Engineering Research Council of Canada for its financial support of this study and the University of Salerno, Italy, for providing a three-month fellowship to the first author, which made it possible to complete this work during his stay in Salerno.
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Journal of Composites for Construction
Volume 19 • Issue 1 • February 2015
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© 2014 American Society of Civil Engineers.
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Received: Aug 4, 2013
Accepted: Feb 19, 2014
Published online: Apr 10, 2014
Discussion open until: Sep 10, 2014
Published in print: Feb 1, 2015
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