Expansion joint protection device

Abstract

The invention provides an expansion joint protection device, and relates to the technical field of bridge facilities. The expansion joint protection device comprises a first side face (1), a second side face (2), a steel plate (6) and a threaded rod (8), trapezoid faces (3) are arranged on the sides, close to the threaded rod (8), of the first side face (1) and the second side face (2) correspondingly, bases (11) symmetrical about the threaded rod (8) are installed on the first side face (1) and the second side face (2) correspondingly, each base (11) comprises a first installation groove (5) and a second installation groove (9), and sliding blocks (15) are arranged on the two sides of the inner wall of each second installation groove (9). The sliding blocks (15) are connected through sliding rods (10), buffering strips (12) are arranged at the two ends of the steel plate (6) and the two ends of the base (11), the buffering strips (12) are of an arc-shaped structure or a sawtooth-shaped structure, the buffering strips (12) are filled with flexible materials (13), and the flexible materials (13) are formed by mixing asphalt and semi-flexible pavement materials. The expansion joint can be protected, and daily loss of the expansion joint is reduced.

Description

technical field [0001] The invention relates to the technical field of bridge facilities, in particular to an expansion joint protection device. Background technique [0002] The thermal expansion and contraction of the bridge due to the influence of temperature will have a serious impact on the structure of the bridge body. In order to eliminate this effect, expansion joints are usually set on the bridge, and the expansion joints will follow the bridge body Expansion with heat and contraction with cold, thereby reducing the stress of the bridge, such as patent No. CN201820868640.8 discloses a bridge expansion joint protection device, which is installed on the bridge expansion joint, the bridge expansion joint includes a first side, a second The side and the elastic waterproof layer arranged between the first side and the second side include a connecting piece and a covering piece that are fitted together, the connecting piece includes a first connecting portion and a second...

AI Technical Summary

Problems solved by technology

[0002] The thermal expansion and contraction of the bridge due to the influence of temperature will have a serious impact on the structure of the bridge body. In order to eliminate this effect, expansion joints are usually set on the bridge, and the expansion joints will follow the bridge body Expansion with heat and contraction with cold, thereby reducing the stress of the bridge, such as patent No. CN201820868640.8 discloses a bridge expansion joint protection device, which is installed on the bridge expansion joint, the bridge expansion joint includes a first side, a second The side and the elastic waterproof layer arranged between the first side and the second side include a connecting piece and a covering piece that are fitted together, the connecting piece includes a first connecting portion and a second connecting portion, and the first connecting portion One end of one end of the second connecting part is fixedly connected at right angles to one end of the second connecting part, the first connecting part is connected to the deck of the bridge, and the second connecting part is connected to the first side of the expansion joint of the bridge; the covering member includes a covering part and a fixed One end of the fixed part is fixedly connected to the bottom surface of the covering part, the fixed part is connected to the second side of the bridge, and the covering part covers the bridge deck and bridge expansion joints, which can meet the expansion and contraction requirements of the expansion joints. At the same time, it protects the elastic waterproof layer from being damaged by sharp objects and avoids the leakage of expansion joints caused by sharp objects. However, such expansion joints will make vehicles directly contact with them during use, and the expansion joints will be damaged after long-term use. Maintenance is more troublesome, and if it is not repaired in time, it will easily cause the driver to bump too much and damage the lumbar spine

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