Repair method using CFRP for corroded steel girder ends

This paper describes a study on a repair method using Carbon Fiber Reinforced Polymer (CFRP) sheets for corroded steel girder ends that have reduced load-carrying capacities in compression and shear. CFRP sheets are bonded on the corroded vertical stiffeners and/or webs using a low elastic modulus putty layer. This putty layer makes it possible to prevent delamination of the CFRP sheets when large deformations occur induced by buckling. A practical design method is proposed, and laboratory experiments for validation are described.