Simple bridge expansion joint structure

Abstract

The invention relates to a simple bridge expansion joint structure. The simple bridge expansion joint structure comprises a steel plate body arranged above a bridge expansion joint in a crossing mode.The two ends of the steel plate body extend to the upper surfaces of the beam body structures on the two corresponding sides of the bridge expansion joint correspondingly, wherein one end of the steel plate body is fixedly connected with the beam body structure on the corresponding side, the other end of the steel plate body is movably connected with the beam body structure on the corresponding side, and when relative horizontal movement occurs between the two beam body structures, equal horizontal displacement is generated between the other end of the steel plate body and the beam body structure on the corresponding side. The steel plate body stretches across the bridge expansion joint, the other end of the steel plate body is movably connected with the corresponding beam body structure,when the bridge expansion joint stretches out and draws back, the other end of the expansion plate body and the corresponding beam body structure automatically generate relative displacement, steel is saved, it is guaranteed that a vehicle runs comfortably, the vehicle jumping phenomenon cannot happen, and stability is good; the structure is simple, construction is convenient, and the service life is long.

Description

technical field [0001] The invention relates to the technical field of bridges, in particular to a simple bridge expansion joint structure. Background technique [0002] With the continuous development of society and the rapid development of our country's economy, bridges, as the lifeblood of transportation, have also developed unprecedentedly. 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...

AI Technical Summary

Problems solved by technology

In addition, the use of this steel plate structure will lead to uncomfortable driving, and it is easy to cause jumping during driving.

After being used for a period of time, the vehicle will produce large bumps and vibrations due to the impact when passing by, and the long-term impact will cause peeling between the expansion joint member and the bridge beam structure, which seriously reduces the gap between the two. The bonding strength

Images