A clean-free durable bridge expansion joint device with noise reduction and easy maintenance

Abstract

The invention discloses a clean-free durable bridge expansion joint device with noise reduction and easy maintenance, include a device body, first steel frame, the second steel frame, the first steelbar, the second steel bar, the first L-shaped fixing plate, the second L-shaped fixing plate, the first steel plate, the second steel plate, the foam cushion, the waterproof layer and the abrasion-resistant shock-absorbing layer, wherein the expansion joint of the bridge cancels the fixed rubber water stop installation groove on the original steel frame, and welds the steel plate on the steel frame, thereby facilitating the installation of the foam cushion, improving the installation efficiency and saving time; The original shaped rubber waterstop is eliminated and the foam cushion is pouredwith self-leveling and anti-aging sealant with low modulus and high elongation, which is not only convenient for construction and maintenance, but also not easy to store garbage and damage. The top ofthe steel frame is painted with an abrasion-resistant and pressure-resistant elastic coating, which is not only corrosion-resistant and has a long service life, but also good abrasion resistance andshock-absorbing effect, so that automobiles can pass through without making noise.

Description

Technical field: [0001] The invention relates to the field of bridge expansion joints, in particular to a noise-reducing, durable, cleaning-free and easy-maintenance bridge expansion joint device. Background technique: [0002] Bridge expansion joints refer to expansion joints usually set between two girder ends, between girder ends and abutments, or at the hinged position of the bridge in order to meet the deformation requirements of the bridge deck. It is required that the expansion joints can freely expand and contract in two directions parallel to and perpendicular to the bridge axis, and are firm and reliable. The vehicles should run smoothly without sudden jumps and noises; they should be able to prevent rainwater and garbage from infiltrating and blocking; installation, inspection, and maintenance , Elimination of dirt should be simple and convenient. Where expansion joints are set, railings and bridge deck pavement must be disconnected. Expansion joints are an impo...

AI Technical Summary

Problems solved by technology

[0003] However, once the existing bridge expansion joints are damaged, it will cause vehicle jumping, noise, water leakage, affect driving safety and shorten the service life of the bridge; and the existing expansion joints are very simple in structure, and a lot of garbage falls into the expansion joints, which is difficult Cleaning is usually done by sanitation workers, which poses a great threat to the life safety of sanitation workers, and the existing expansion joints will produce a huge sound when driving past, which not only affects the service life of the bridge , and it has great wear and tear on the car tires, and the installation and construction of expansion joints are also very inconvenient, with low efficiency and slow speed

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