STRENGTHENING METHOD FOR CONCRETE STRUCTURES WITH PRESTRESSED NEAR SURFACE MOUNTED FIBER REINFORCED POLYMER COMPOSITES

摘要

A reinforcement method for a concrete structure by stretching and laying Fiber reinforced polymer composites is provided to reinforce a concrete structure safely and effectively by placing an FRP tension member to a concave groove formed on the surface of a concrete structure and applying tensile force to the concrete structure. A reinforcement method for a concrete structure by stretching and laying Fiber reinforced polymer composites comprises the steps of forming a concave groove on the outside of a concrete beam(100) which is required to be reinforced to the appointed depth, placing an FRP tension member(102) into the concave groove and stretching the FRP tension member using a tension device, filling up the concave groove with filler(104) such as epoxy to make the FRP tension member buried under the filler completely, removing a reaction member after curing the filler above the appointed strength, separating the FRP tension member from the tension device, applying tensile force to the concrete structure and removing the unnecessary part of the FRP tension member.