Behaviour of reinforced concrete corbels strengthened with cfrp fabrics

Abstract EN

The use of carbon fiber reinforced polymer (CFRP) as an effective approach for strengthening reinforced concrete members has developed extensively in recent years.

The present study investigates the shear behaviour, including the load-carrying capacity and mode of failure of reinforced concrete corbels strengthened with CFRP fabrics.

The experimental program consisted of five full-scale concrete corbels subjected to a patch load with a shear span to depth ratio equal to 0.73.

The specimens were designed to fail in shear.

Test results indicated that strengthening of RC corbels with CFRP slightly enhanced the shear behaviour of the test specimens.

The enhancement in the load-carrying capacity in shear ranged from 7 % to 13 %.

The results were compared with non-linear finite element analysis predictions which their predictions were conservative.

The ultimate loads predictions of ECP-203 (Egyptian code of practice) according to flexural and shear friction procedure codes were conservative with respect to NLFEA predictions at different values of α/d ratios.