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Study on Flexural Behavior of Concrete Beams with Glass Fiber Reinforced Polymer Bars as Internal Reinforcement


Affiliations
1 Structural Engineering, School of Civil Engineering, Karunya University, Coimbatore –641114, India
2 School of Civil Engineering, Karunya University, Coimbatore-641114, India
     

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The objective of the current study is to investigate and evaluate the flexural behavior of reinforced concrete beams when using GFRP bars as internal reinforcement. The experimental program includes testing of five concrete beams in simply supported condition with steel and GFRP bars as internal reinforcements. The experimental results were evaluated and discussed. Also the ultimate flexural capacities were calculated by theoretical calculations. A comparison made between both experimental and theoretical results. This comparison indicated that the theoretical analysis gives results which are about an average of 51.85% lower than the experimental flexural capacity for GFRPreinforced beams. The mid span average deflection of GFRP beams at 55 kN mid-point load was 4.2 times that of steel beam for same load and this can be attributed to the low modulus of elasticity of GFRP bars.

Keywords

GFRP, Flexure, Ultimate Load, Deflection, Cracks
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  • A. Nanni and S. Faza (2001)Design and construction of concrete reinforced with frp bars: an emerging technology ACI Dallas Convention, 2001
  • Mohamed S. Issa* and S. M. Elzeiny (2011)Flexural behavior of cantilever concrete beams reinforced with glass fiber reinforced polymers (GFRP) bars Journal of Civil Engineering and Construction Technology Vol. 2(2), February 2011
  • M. Pecce,G. Manfrediand E. Cosenza (2000) Response prediction of concrete beams reinforced with FRP bars Experimental Response and Code Models of GFRP RC beams in Bending 182/ Journal of Composites for Construction, November 2000
  • KocaozS, Samaranayake V.A, Nanni A (2005) Tensile characterization of glass FRP bars , Composites part B vol. 36(2005) 127-134

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  • Study on Flexural Behavior of Concrete Beams with Glass Fiber Reinforced Polymer Bars as Internal Reinforcement

Abstract Views: 269  |  PDF Views: 0

Authors

G.V. Aravindan
Structural Engineering, School of Civil Engineering, Karunya University, Coimbatore –641114, India
N. Anand
School of Civil Engineering, Karunya University, Coimbatore-641114, India

Abstract


The objective of the current study is to investigate and evaluate the flexural behavior of reinforced concrete beams when using GFRP bars as internal reinforcement. The experimental program includes testing of five concrete beams in simply supported condition with steel and GFRP bars as internal reinforcements. The experimental results were evaluated and discussed. Also the ultimate flexural capacities were calculated by theoretical calculations. A comparison made between both experimental and theoretical results. This comparison indicated that the theoretical analysis gives results which are about an average of 51.85% lower than the experimental flexural capacity for GFRPreinforced beams. The mid span average deflection of GFRP beams at 55 kN mid-point load was 4.2 times that of steel beam for same load and this can be attributed to the low modulus of elasticity of GFRP bars.

Keywords


GFRP, Flexure, Ultimate Load, Deflection, Cracks

References