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http://dx.doi.org/10.12989/sem.2007.26.4.427

Repair of precracked RC rectangular shear beams using CFRP strip technique  

Jayaprakash, J. (Department of Civil Engineering, Universiti Putra Malaysia)
Samad, Abdul Aziz Abdul (Universiti Tun Hussein Onn Malaysia)
Abbasovich, Ashrabov Anvar (Tashkent Automobile and Road Construction Institute)
Ali, Abang Abdullah Abang (Housing Research Centre, Universiti Putra Malaysia)
Publication Information
Structural Engineering and Mechanics / v.26, no.4, 2007 , pp. 427-439 More about this Journal
Abstract
The exploitation of fibre reinforced polymer composites, as external reinforcement is an evergreen and well-known technique for improving the structural performance of reinforced concrete structures. The demand to use FRP composites in the civil engineering industry is mainly due to its high strength, light weight, and stiffness. This paper exemplifies the shear strength of partially precracked reinforced concrete rectangular beams repaired with externally bonded Bi-Directional Carbon Fibre Reinforced Polymer (CFRP) Fabrics strips. All specimens were cast in the laboratory environment without any internal shear reinforcement. The test parameters were longitudinal tensile reinforcement, shear span to effective depth ratio, spacing of CFRP strips, and orientation of CFRP reinforcement. It mainly focuses on the shear capacity and modes of failure of the CFRP strengthened shear beams. Results have shown that the CFRP repaired beams attained a shear enhancement of 32% and 107.64% greater than the control beams. This study underscores that the CFRP strip technique significantly enhanced the shear capacity of precracked reinforced concrete rectangular beams without any internal shear reinforcement.
Keywords
shear; CFRP; repair;
Citations & Related Records

Times Cited By Web Of Science : 2  (Related Records In Web of Science)
Times Cited By SCOPUS : 2
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