Experimental Investigation on Flexural Behavior of RC Beams Strengthened with Carbon Fiber Reinforced Polymer (CFRP) Fabrics

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Experimental Investigation on Flexural Behavior of RC Beams Strengthened with Carbon Fiber Reinforced Polymer (CFRP) Fabrics

June 5, 2021 Engineering 0

This research investigates the flexural behaviour of carbon fibre reinforced polymer (CFRP) reinforced concrete (RC) beams. A total of ten RC beams were cast and tested up to failure under monotonic and cyclic loads over an effective span of 3000 mm for flexural strengthening. Under-reinforced concrete beams were built for the beams. Under virgin conditions, eight beams were strengthened with bonded CFRP fabric in a single layer and two layers parallel to the beam axis at the bottom and tested to failure; the remaining two beams served as control specimens. Inertia
All of the beams’ strength, stiffness, ductility ratio, energy absorption capacity factor, compositeness between CFRP fabric and concrete, and associated failure mechanisms were all tested. FEA software ANSYS was used to forecast the theoretical moment-curvature relationship as well as the load-displacement response of the strengthened and control beams. The results of the numerical (ANSYS) and experimental analyses have been compared. The reinforced beams had higher flexural strength, flexural stiffness, and composite action till failure, according to the findings. In this study, a CPRP-strengthened beam exhibits significant ductility in comparison to the control beam.

Author (s) Details

Dr. R. Balamuralikrishnan
Department of Civil and Environmental Engineering, College of Engineering, National University of Science and Technology, Muscat, Sultanate of Oman.

C. Antony Jeyasehar
(Retired), Civil and Structural Engineering, Annamalai University, Annamalainagar – 608 002, Tamilnadu, India.

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