A bridge expansion joint structure

Abstract

Provided is a bridge expansion joint structure, comprising a bridge body (2, 3) and an expansion joint (1). The expansion joint (1) divides the bridge body (2, 3) into a first bridge body (2) and a second bridge body (3). A first bearing step (21) is formed on the first bridge body (2), and the first bearing step (21) is provided with a first fixed pillar (22). A second bearing step (31) is formed on the second bridge body (3), and the second bearing step (31) is provided with a second fixed pillar (32). Lateral faces of the first and second bearing steps (21, 31) are respectively fixedly connected to a C-shaped steel plate (4). An expansion joint connector (6) is provided between the first bridge body (2) and the second bridge body (3). The expansion joint connector (6) comprises an upper bearing body (61) and a lower supporting body (62), and the upper bearing body (61) and the lower supporting body (62) are both provided with reinforcing ribs (63). A cover plate (7) is provided above the expansion joint (1). Elastic filling materials (8) are filled between the expansion joint (1) and the expansion joint connector (6). The bridge expansion joint structure meets the requirement of road expansion deformation, is structurally secure, has a good bearing capacity, provides a good smooth and comfortable sensation during driving, and is also easy and convenient to install, inspect and maintain.

Description

technical field [0001] The invention belongs to the technical field of road engineering, and in particular relates to a bridge expansion joint structure. Background technique [0002] With the continuous development of society and the rapid development of our country's economy, roads, as the lifeblood of the country, have also achieved unprecedented development. Expansion joints are set at the junction of the bridge and the junction of the roads at both ends to meet the requirements of the deformation of the bridge deck. Usually, expansion joints are set between the two girder ends, between the girder end and the abutment, or at the hinged position of the bridge. The 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 vehicles should run smoothly without sudden jumps and noises; installation, inspection, maintenance, and removal of dirt should be simple and convenient. On...

AI Technical Summary

Problems solved by technology

Once the bridge expansion joints are destroyed, it will seriously affect the speed, comfort and safety of driving, and even cause driving safety accidents

[0003] However, the structure of the current bridge expansion joints is not strong enough, and there are potential safety hazards when vehicles pass by for a long time; moreover, the connection of expansion joints is now simply connected by steel plates, and this construction method is often directly made of steel plates to save trouble. Fixed connection, neither detachable connection, routine inspection and maintenance of expansion joints in daily use, there are potential safety hazards; and because the steel plate is relatively hard, the expansion joints connected by steel plates have poor driving comfort, and the driving process Car jumping is prone to occur in the middle, so it is of practical significance to design a durable expansion joint structure with good bearing capacity, good stability, and meeting the expansion and contraction deformation of the bridge.

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