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Deflection behaviour of FRP reinforced concrete beams and slabs: An experimental investigation |
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| Authors: | Raed Al-Sunna Kypros Pilakoutas Iman Hajirasouliha Maurizio Guadagnini |
| Affiliation: | 1. Department of Civil & Structural Engineering, The University of Sheffield, Sheffield, UK;2. Department of Civil Engineering, The University of Nottingham, Nottingham, UK;1. College of Civil Engineering, Nanjing Tech University, Nanjing, China;2. Advanced Engineering Composites Research Center, Nanjing Tech University, Nanjing, China;3. Department of Civil Engineering, Monash University, Clayton 3800, Australia;4. Department of Mechanical Engineering, University of New Orleans, New Orleans, LA 70124, USA;1. Department of Civil and Environmental Engineering, Western University, London, Ontario Canada;2. Department of Civil Engineering, University of Sherbrooke, Sherbrooke, Quebec J1K 2R1, Canada;1. Civil Engineering Department, Nigde University, Nigde, Turkey;2. School of Engineering, Design and Technology, University of Bradford, Bradford BD7 1DP, UK |
| Abstract: | The flexural response of FRP RC elements is investigated through load–deflection tests on 24 RC beams and slabs with glass FRP (GFRP) and carbon FRP (CFRP) reinforcement covering a wide range of reinforcement ratios. Rebar and concrete strains around a crack inducer are used to establish moment–curvature relationships and evaluate the shear and flexural components of mid-span deflections. It is concluded that the contribution of shear and bond induced deformations can be of major significance in FRP RC elements having moderate to high reinforcement ratios. Existing equations to calculate short-term deflection of FRP RC elements are discussed and compared to experimental values. |
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