Maintenance-free bridge expansion device with dust and residue preventing function and water stop

Abstract

The invention relates to the field of road bridges, in particular to a maintenance-free bridge expansion device with a dust and residue preventing function and a water stop. The device comprises a water stop body; the water stop comprises multiple layers, multiple gaps exist among multiple layers of the water stop and are distributed vertically, and the water stop contains side clamping structureson two sides. With the adoption of the technical scheme, compared with the prior art, the maintenance-free bridge expansion device has the benefits as follows: the water stop is innovatively dividedinto multiple layers, multiple gaps exist vertically, even if leaking holes appear in the uppermost part and rainwater fills the leaking holes, the rainwater can be isolated by a following interval layer of the water stop, therefore, multi-layer water stopping can be realized, the condition of whole leakage can be prevented, and the water stop cannot easily fail and can effectively prevent water.

Description

technical field [0001] The invention relates to the field of roads and bridges, in particular to a dust-proof and maintenance-free bridge telescopic device and a waterstop. Background technique [0002] With the development of my country's transportation industry, the traffic flow and vehicle load are increasing day by day, and there are many problems in the field of existing bridge expansion joints: [0003] 1. Stones often fall in and make a hole in the expansion joint. In this case, water will enter and damage the bridge and expansion joint structure; [0004] 2. Some sanitation workers don’t pay attention when cleaning, and the stones fall into the water stop belt, and they even pierce the stones to fall, which is very immoral; [0005] After there are holes, water will enter the bridge gap, and if it freezes, it will damage the building and corrode the steel structure, which will easily cause accidents after a long time. [0006] After the water stop in the telescopic...

AI Technical Summary

Problems solved by technology

[0003] 1. Stones often fall in and make a hole in the expansion joint. In this case, water will enter and damage the bridge and expansion joint structure;

[0004] 2. Some sanitation workers don’t pay attention when cleaning, and the stones fall into the water stop belt, and they even pierce the stones to fall, which is very immoral;

[0005] After there are holes, water will enter the bridge gap. If it freezes, it will damage the building and corrode the steel structure. It will easily cause accidents after a long time

[0006] After the waterstop in the expansion device is damaged, corrosive substances such as bridge deck sewage and winter deicing salt water will leak through the damaged part of the waterstop, which will damage the bridge support and steel bars, affect the use of the bridge, and cause bridge damage. Security risks

[0007] The traditional single-layer waterstop has a short service life and needs to be replaced frequently. If the waterstop is replaced during operation, it will affect traffic

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