Abstract
The objective of this study is to obtain reinforcing effect and strength characteristic of bonding method of carbon fiber sheet with joint for steel members. Uniaxial tensile test of steel plates bonded CFRP strand sheets with joints was carried out. As a result, there were no ruptures or delamination of the sheets until reaching yield stress of SBHS700, which was a kind of high strength steel, when the length of the joint was equal to or greater than 20 mm. In test pieces whose strength were below yield stress of the steel, cohesive failure of adhesive occurred at the edge of joint, and crack propagated in the joint. Moreover, finite element analysis and semi-analytical method were conducted in order to investigate on failure mode and strength characteristic of joint.
