Repair structure and construction method of transition zone of expansion joints of intelligent highway concrete bridge

Abstract

The invention discloses a repair structure for a transition area of an intelligent highway concrete bridge expansion joint and a construction method thereof. The repair structure comprises a bonding layer, a reinforcing layer, an anti-deformation layer and a passing layer, wherein the bonding layer is arranged on the surface of a reserved groove of the bridge expansion joint; the reinforcing layercomprises reinforcing beams, a first connecting chain, a second connecting chain, a bushing and concrete; the two reinforcing beams are symmetrically arranged on two inner side edges of the reservedgroove; the first connecting chain is arranged between the reinforcing beams and the reserved groove; two ends of the second connecting chain are separately welded to the two reinforcing beams; the bushing is arranged on the second connecting chain in a sleeving manner; the concrete is poured between the two reinforcing beams; the anti-deformation layer comprises a silica gel gasket, an H-shaped rack, a wire rope and a rubber block; and the H-shaped rack is arranged on the reinforcing beams, the wire rope is connected to two inner side walls of the H-shaped rack, the rubber block fills the H-shaped rack, and the silica gel gasket is arranged between the H-shaped rack and the reserved groove. The repair structure avoids upheaval or breakage of a bridge floor due to thermal expansion and cold contraction while playing a reinforced connecting role to two sides of the bridge expansion joint, and has a very good shock absorbing effect to driving.

Description

technical field [0001] The invention relates to the technical field of bridge expansion joint transition area repair structure, in particular to an intelligent highway concrete bridge expansion joint transition area repair structure and a construction method thereof. Background technique [0002] Bridge expansion joints refer to expansion joints set between two girder ends, between girder ends and abutments, or at the hinged position of a bridge in order to meet the requirements of bridge deck deformation. Expansion joints are required to be free to expand and contract in two directions parallel and perpendicular to the bridge axis, firm and reliable, and the vehicle should be smooth, free of sudden jumps and noises when driving; it must be able to prevent rainwater and garbage from infiltrating and blocking; installation, inspection, maintenance , Elimination of dirt should be simple and convenient. Where expansion joints are set, railings and bridge deck pavement must be ...

AI Technical Summary

Problems solved by technology

[0006] Traditional bridge expansion joint repair structures use stuffing foam boards or modulus supports. The stuffing foam boards are prone to bridge deck swelling under temperature changes and have little effect on the reinforcement of both sides of the gap; while modulus supports are easy to damage. And the noise is loud when using, and the user experience is not good

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