The interfacial bond behavior between CFRP and steel plate plays an important role in the strengthening effects of steel structure reinforced by CFRP. In this paper, experimental studies based on double-shear specimen were conducted under static load, which considered the influence of different bond width and layer number. This paper presented the failure modes, bond strength, strains of CFRP, and bond-slip relationship. Test results showed that the bond strength of the specimen could be significantly improved by the way of bonding layers of CFRP sheets or increasing the bond width although the ductility was reduced because of layers of CFRP. The bond-slip curve between the interface of CFRP sheet and steel plate had an approximately bilinear shape.
展开▼
