Rehabilitation of Concrete Bridges for Shear Deficiency Using CFRP Sheets

摘要

In North America, many reinforced concrete or prestressed concrete bridges designed in accordance with now obsolete design codes and for much lighter traffic loads, have found to be shear deficient. It is of great interest to develop rehabilitation techniques which are both structurally efficient and economically competitive. In the last few years, advanced composite materials, such as carbon, glass and aramid fiber composites, have been considered for solutions to such problems as flexural and shear deficiencies in concrete bridges. This paper summarizes the research results and field applications, under the efforts of ISIS Canada, of using carbon fiber reinforced plastic (CFRP) sheets in strengthening concrete bridges for shear deficiency.