Process and steel-reinforcing element for the subsequent reinforcement of concrete structures

摘要

In the case of a process for reinforcing concrete structures by shear-resistant adhesion of steel-reinforcing elements, said steel-reinforcing element is first of all fixed on the concrete structure, spaced apart therefrom by an adhesive joint, the outer edge of the steel-reinforcing element is then sealed, and adhesive material is subsequently introduced through at least one opening in the steel-reinforcing element and/or the outer-edge seal. In order also to reinforce larger concrete structures which have to be reinforced in two dimensions, the steel-reinforcing element is composed of a plurality of steel profiles which are welded to one another in a non-overlapping manner at the respectively abutting outer edge. Each steel profile has at least one adhesive-material bonding surface and a sealing outer edge and exhibits at least one closable hole for introducing the adhesive material, one closable hole for venting, and spacers arranged on the adhesive-material bonding surface. The adhesive material is introduced by stepwise pressing-in with filling control via the venting holes, which are closed by rapid-setting sealing material when adhesive material which has been pressed in comes out of them.