FIELD: construction.
SUBSTANCE: method for increasing the bearing capacity of the bridge support body includes drilling of grooves along the outer circumference of the element to be strengthened, installation of rods, installation of enclosing strands, their bracing and applying of polymer solution. The grooves are drilled in the bottom of the support along its outer circumference, and the number of recesses is calculated from the bearing ability of the support. Then the calculated amount of holes is drilled in the support body and anchors are arranged in them. Into the grooves drilled in the bottom of the support, the reinforcing profile rods are glued, their length is no less than the support height. The rods are fixed on the support body by the anchors installed earlier. Before installing the enclosing strands made of high-strength reinforcement, the level of their installation is calculated. After that, at this level the additional anchor blocks are installed which are fixed on a support body with reinforcement anchors. Then the enclosing strands are installed and pulled together by jacks, and their ends are fixed on the anchor blocks and tightened by collet anchors. Then, the resultant structure consisting of the support itself, the rods of reinforcing profile and bundling enclosing strands is covered, for example, by guniting, with layers of the polymer solution of special composition.
EFFECT: strengthening of reinforced concrete massive supports of bridges.
3 dwg
