IMPROVING SHEAR CAPACITY OF REINFORCED CONCRETE MEMBERS USING EXTERNALLY BONDED FIBER REINFORCED POLYMERS: A MODIFIED DESIGN APPROACH

摘要

Externally bonded carbon fiber reinforced polymers (CFRP) sheets are continuing to show great promise for use in strengthening concrete structures. One of the applications of the externally bonded FRP sheets is their use in increasing the shear capacity of flexural members. In this paper the ultimate load capacity of carbon FRP sheets and modified design procedures to compute the contribution of CFRP to the shear capacity of reinforced concrete flexural members are presented. The ultimate load capacity and the proposed modified design are compared with a widely applied design procedure found in the literature, which is based on limited experimental results. Our results show that the proposed approach predicts conservative results. Emerging areas that have the potential for further development are also discussed.