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Advances in Materials Science and Engineering
Volume 2017, Article ID 5386498, 10 pages
Research Article

Numerical Simulation of GFRP Reinforced Concrete Beams

1School of Transportation, Wuhan University of Technology, Wuhan, Hubei 430063, China
2Binzhou Polytechnic, Binzhou, Shandong 256603, China

Correspondence should be addressed to Xia Zhao; moc.anis@aixoahzxy

Received 22 April 2017; Accepted 19 July 2017; Published 24 August 2017

Academic Editor: Fabrizio Sarasini

Copyright © 2017 Xia Zhao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Experiment on the constitutive model of fiber reinforced concrete with volume fraction of alkali-resistant glass fiber of, respectively, 0.0%, 0.5%, 1.0%, and 1.5% was conducted, and the constitutive relation of tension stress-strain full curve of GFRC shaft was obtained; the constitutive relation of GFRP is obtained by experiment, and the secant modulus was obtained by the fitting of univariate cubic equation. The finite element numerical simulation of GFRP fiber reinforced concrete beam was carried out, and the load deflection nephogram of fiber reinforced concrete beam, strain nephogram, crack nephogram, and GFRP stress nephogram were obtained. When the fiber content is 1.0%, the bearing capacity of GFRP reinforced concrete beams is the best, and it could play a “bridging” effect when the incorporation of fiber is within the load range of about 60%, which inhibited the developing speed of cracks, but with the gradual increase of the load, the “bridging” effect disappeared.