AN IMPROVED SHEAR CORRECTION MODEL FOR CALCULATING SHEAR STRENGTH OF EXTERNALLY BONDED FIBER REINFORCED POLYMERS SYSTEMS

摘要

Externally bonded Fiber reinforced polymers (FRP) sheets are continuing to show great promise for use in strengthening concrete structures. One of the applications of externally bonded FRP sheets is their use in increasing the shear capacity of flexural members. In this paper an improved mathematical model to calculate shear correction factors and modified design procedures to compute the contribution of FRP to the shear capacity are presented. The shear values are verified by comparison with experimental data from literature and some widely used approaches. Our results show that the proposed approach correlate well with the experimental results and in most cases yield better prediction than work by other researchers.