Recently the Carbon Fiber sheets is widely used for strengthening damaged RC structures. Experiments were conducted to investigate the shear behavior of RC beams strengthened with externally bonded CFS strips. Total of 12 RC beams, including 5 RC beam...
Recently the Carbon Fiber sheets is widely used for strengthening damaged RC structures. Experiments were conducted to investigate the shear behavior of RC beams strengthened with externally bonded CFS strips. Total of 12 RC beams, including 5 RC beams strengthened using CFS strips without stirrup and 5 RC beams strengthened using CFS strips with stirrup and 2 unstrengthened beam, were tested. RC beams strengthened with CFS stips showed different failure mode, failure due to strip debonding or strip rupture, and different capability to enhance shear capacity of RC beams according to the type of anchorage. Failure due to sheet debonding can be prevented by providing anchorage of additional length of sheet or mechanical anchorage.
The CFS strip contribution to shear capacity of RC beams could be calculated using effective stress on CFS strip and showed good agreement between experimenal results and analytical results.