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Evaluation of Flexural Behavior and Serviceability Performance of Concrete Beams Reinforced with FRP Bars |
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| Authors: | Chakib Kassem Ahmed Sabry Farghaly Brahim Benmokrane |
| Affiliation: | 1Former Ph.D. student, Project Engineer, Osmos Canada, 1001 Maisonneuve Blvd. West, Suite 800-B, Montreal, PQ, Canada, H3A 3C8. E-mail: Chakib.Kassem@osmos-canada.com 2Post-doctoral Fellow, Dept. of Civil Engineering, Univ. of Sherbrooke, Sherbrooke, PQ, Canada, J1K 2R1; Lecturer, Assiut Univ., Assiut, Egypt. E-mail: ahmed.farghaly@usherbrooke.ca 3Professor of Civil Engineering, Canada Research Chair in Advanced Composite Materials for Civil Structures, NSERC Research Chair in Innovative FRP Reinforcement for Concrete Infrastructures, Dept. of Civil Engineering, Univ. of Sherbrooke, Sherbrooke, PQ, Canada, J1K 2R1 (corresponding author). E-mail: Brahim.Benmokrane@USherbrooke.ca |
| Abstract: | Flexural behavior and serviceability performance of 24 full-scale concrete beams reinforced with carbon-, glass-, and aramid-fiber-reinforced-polymer (FRP) bars are investigated. The beams were 3,300?mm long with a rectangular cross section of 200?mm in width and 300?mm in depth. Sixteen beams were reinforced with carbon-FRP bars, four beams were reinforced with glass-FRP bars, two beams were reinforced with aramid-FRP bars, and two were reinforced with steel, serving as control specimens. Two types of FRP bars with different surface textures were considered: sand-coated bars and ribbed-deformed bars. The beams were tested to failure in four-point bending over a clear span of 2,750?mm. The test results are reported in terms of deflection, crack-width, strains in concrete and reinforcement, flexural capacity, and mode of failure. The experimental results were compared to the available design codes. |
| Keywords: | Concrete beams Cracking Deflection Flexural strength Strain Bars Serviceability |