Abstract
Structural engineers always strived for enhancing the performance of Reinforced Concrete flexure members of the structures incorporating ductility and strength in materials, viz. concrete and reinforcing steel. In the present work, composite of steel and carbon fiber reinforced polymer is used as flexure reinforcement. The composite reinforcement was fabricated in the laboratory by sandwiching woven carbon fiber fabric between steel flats with adhesive. Four concrete beams, one with conventional rebars, and three with the composite as longitudinal reinforcement were cast and suitably cured with water. Experimental results and the structural response of four beams, one of them reinforced with conventional deformed rebars and three with steel-CFRP composite as longitudinal reinforcement have been discussed in this research. Tests were conducted on the beams, supported on two rollers at 1400 mm centre-to-centre, applying two equal symmetrical concentrated loads with a shear span of 400 mm. The deflection at mid-span, deflection ductility ratio, and load-carrying mechanism of the beams with composite reinforcement have been discussed and compared with the beam having longitudinal conventional deformed rebars. The flexural ductility of the beams reinforced with the steel-CFRP composite as flexural reinforcement is found comparable with the beams reinforced with conventional deformed steel rebars.
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Uriayer, F.A., Alam, M. (2023). Ductility Behaviour of Concrete Beams with Flexural Steel-CFRP Composite Reinforcement. In: Fonseca de Oliveira Correia, J.A., Choudhury, S., Dutta, S. (eds) Advances in Structural Mechanics and Applications. ASMA 2021. Structural Integrity, vol 26. Springer, Cham. https://doi.org/10.1007/978-3-031-05509-6_6
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