REHABILITATION OF COLUMN MEMBER OF STEEL GIRDER END WITH CROSS SECTIONAL LOSS USING CFRP STRIPS AND LOW ELASTIC ADHESIVE

This paper deals with a repair method for the steel girder end with section loss by externally bonded CFRP strips. In case of applying structural adhesive with low elasticity and high viscosity, there are some problems of defects (internal void) and thickness in adhesive. In this study, the modeling of defects and interfacial stress in adhesive were analyzed using spring model, and the influence of defects and thickness in adhesive on the rehabilitation of steel girder end with section loss was investigated experimentally and analytically. The result shows that the influence of defects and thickness in adhesive on the recovery of compressive strength of steel girder end is relatively small.