Analytical and Experimental Study of Short Reinforced Concrete Beams Reinforced with CFRP

Abstract

In this work, short reinforced concrete beams reinforced with carbon fibre fabrics externally bonded with epoxy resins (CFRP) have been tested in three-point bending. Two types of carbon fibers were used: high modulus of elasticity and high strength. The beams have been evaluated analytically with two different procedures: (i) using a tie rod and tierod model, this procedure would be the indicated one since all regions are in D-zones and, (ii) using the usual bending theory, as if all regions were in B zones. The results obtained allow: (i) check the influence of this type of reinforcement on the standard beams; (ii) compare the results obtained with both types of fibers; (iii) compare the results obtained with the two analytical procedures used for the analysis and; (iv) compare the analytical results with the experimental results.