Research on the Application of Prestressed CFRP in Strengthening Concrete Beams

Abstract

CFRP plate is a kind of common bridge reinforcement material, its high tensile strength, shrinkage, environmental corrosion resistance. It is conducive to the bridge reinforcement of CFRP plate, which can not only effectively improve the bearing capacity, stiffness, crack resistance and ductility of the component, but also will not increase the original size and weight of the bridge. It has the advantages of reliable anchorage effect, large tensile stress, simple process, good technology and economy. The reinforcement can give full play to the high strength characteristics of CFRP material, effectively improve the mechanical properties of components in the use stage, prevent spalling damage, reduce strain lag phenomenon, while the construction does not interrupt the traffic, and the material utilization rate is high, light weight, beautiful appearance and so on.