Leak-proof bridge expansion joint and use method thereof

Abstract

The invention discloses a leak-proof bridge expansion joint and a use method thereof, and belongs to the field of bridge construction. The leak-proof bridge expansion joint mainly comprises a bridge pier cap, lateral connection reinforcement, a section steel expansion joint, two deformed steel, section steel connection reinforcement, an M-shaped rubber sealing tape and the like. Upper and lower inflatable bags and a plurality of communicating ducts respectively communicated with the upper and lower inflatable bags are respectively arranged at the upper and lower ends of the two sides of the rubber sealing tape, and the two sides of the rubber sealing tape and the two deformed steel are installed in an embedded way; the rubber sealing tape has an internal inflating or deflating functions by the improvement, i.e., the inflated rubber sealing tape and mounting grooves of the deformed steel can be tightly embedded to ensure the sealing quality of the bridge expansion joint in various use environments, and the deflated rubber sealing tape can freely move to be taken out in the mounting grooves of the deformed steel to facilitate the detection, maintenance and replacement of the rubber sealing tape. The improved structure also has the advantages of simple structure, durability, convenience in maintenance, cost reduction and the like, thus playing an all-weather water leak-proof role.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to anti-leakage bridge expansion joints and a method for using the same. Background technique [0002] Bridge expansion joints are an important part of the bridge superstructure, usually set between the two girder ends of the reserved bridge deck, between the girder end and the bridge pier cap. Bridge expansion joints are mainly composed of bridge pier caps, multiple transverse connecting steel bars and section steel expansion joints, and section steel expansion joints are formed by two hot-rolled integrally shaped special-shaped steels with "M"-shaped rubber seals in cross section. It is composed of a plurality of section steel connecting steel bars, etc., and the two sides of the rubber sealing belt are embedded in the installation grooves of two special-shaped steel. , At the same time, it can also guide rainwater to discharge out of the bridge expansion joint along the top su...

AI Technical Summary

Problems solved by technology

The elastic waterproof strip of the bridge expansion joint is small in size and cannot be used on a bridge with a large span; at the same time, the elastic waterproof strip of the bridge expansion joint is repeatedly squeezed as the main component of expansion and contraction under the inflated state. Very easy to be damaged by fatigue, especially at high temperature, that is, the compression of the elastic waterproof strip is the largest, resulting in an increase in the air pressure inside the elastic waterproof strip, and the damage is more serious; and the elastic waterproof strip is directly installed on the surface of the bridge deck, which is easy to damage and difficult to repair

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