2021 Volume 32 Pages 1-12
The shear characteristics of RC beam specimens strengthened with carbon fiber grid plates fixed at their edges by carbon fiber bundles were investigated in terms of the tensile strength of the carbon fiber bundles and the compressive strength of PCM. As a result, strengthening with the proposed method was found to be very effective for shear strengthening of existing RC members. Further, it was established that the carbon fiber bundles used for edge anchoring should have tensile strength at least 1.0 times the tensile strength of the tendons of the carbon fiber grid plate used for shear reinforcement. It was also established that PCM with compressive strength of 50 N/mm2 or more should be used. Finally, the formula proposed for the estimation of shear capacity of the strengthened beams was verified to be valid.
