Bridge expansion joint structure

Abstract

The invention discloses a bridge expansion joint structure includes a bridge main body and an expansion joint, the expansion joint divides the bridge main body into a first bridge main body and a second bridge main body, and a first support step is formed at the first bridge main body; the first support step is provided with a first fixing column, a second support step is formed at the second bridge main body, the second support step is provided with a second fixing column, and the side surfaces of the first and second support steps are separately and fixedly connected with C-shaped steel plates; an expansion joint connecting piece is arranged between the first bridge main body and the second bridge main body; the expansion joint connecting piece includes an upper support body and a lowersupport body which are both provided with reinforcing ribs; the upper of the expansion joint is provided with a cover plate; and elastic filling materials are filled between the expansion joint and the expansion joint connecting piece. According to the bridge expansion joint structure, the demand of expansion and deformation of a road can be met, the structure is steady, the bearing capacity is better, and the smoothness and the better comfort are achieved in the driving process; and the installation, the check and the maintenance are simple and convenient at the same time.

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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