Seamless expansion joint structure

Abstract

The invention discloses a seamless expansion joint structure. The seamless expansion joint structure includes an expansion joint between two adjacent beam bodies, pavement layers are arranged on the beam bodies, a pre-reserved groove is formed between the two adjacent pavement layers; the seamless expansion joint structure further includes a covering plate arranged on the expansion joint, an expansion component is arranged on the upper part of the covering plate, the pre-reserved groove is filled with elastic-plastic bodies, and the top faces of the elastic-plastic bodies are flush with the top faces of the pavement layers. According to the seamless expansion joint structure, a bridge deck is smooth and seamless, automobile jumping is effectively avoided, driving comfort is improved, waterand waste can be prevented with high attractiveness, the cracking of the elastic-plastic bodies in the process of transformation can be prevented, and the impact of traffic loads to a bridge expansion joint is reduced; due to the fact that the seamless expansion joint structure can be applied in demands for larger expansion deformation, so the seamless expansion joint structure can be applied inlarge and middle scale bridges; and the structure is simple, the installation is convenient, the construction efficiency can be effectively improved, the service life is long, and the maintenance costis low.

Description

technical field [0001] The invention relates to the technical field of bridge expansion joints, in particular to a seamless expansion joint structure. Background technique [0002] In order to prevent the expansion and deformation requirements of the beam body and bridge deck caused by factors such as temperature changes, concrete shrinkage and creep, and live loads, and to ensure the smooth passage of vehicles, expansion joints are usually set between the ends of the two beams. The structure is the most vulnerable to damage and is located in the part that is difficult to maintain. Therefore, if the selection and design of the expansion device are unreasonable, it is easy to cause damage to the expansion joints of the bridge, which will affect the driving safety and the service life of the bridge. [0003] In the prior art, on large and medium-span bridges, the demand for expansion is relatively large, such as greater than 80mm, and steel expansion joints are usually used. A...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies that the existing seamless expansion joints can only satisfy a relatively small displacement and deformation, and the steel expansion joints that can meet a relatively large deformation are prone to water leakage, poor driving comfort, and high maintenance costs, and provide A seamless expansion joint structure

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