Prefabricated and assembled protective wall connecting structure for bridge and construction method of prefabricated and assembled protective wall connecting structure

Abstract

The invention provides a prefabricated and assembled protective wall connecting structure for a bridge and a construction method of the prefabricated and assembled protective wall connecting structure, and relates to the technical field of bridge construction. The structure comprises a beam body, a prefabricated protective wall, grouting materials and connecting plates. The beam body is prefabricated, pre-embedded steel bars extend out of the corresponding positions of the beam surface during prefabrication, a bedding mortar groove is reserved, reserved grooves and supporting columns are arranged on the lower part of the prefabricated protective wall, connecting steel bars are arranged in the reserved grooves, bedding mortar is laid in the bedding mortar groove of the beam body during construction, supporting pads are arranged at the positions, corresponding to the supporting columns, of the bedding mortar groove, the prefabricated protective wall is hoisted, the supporting columns aresupported on the supporting pads, the connecting steel bars are inserted into the middles of the pre-embedded steel bars, the connecting plates pre-embedded in the supporting columns penetrate into pre-embedded bolts pre-embedded in the beam body, nuts are screwed for connection, grouting materials are poured from the upper parts of grout inlet holes till the grouting materials flow out from grout outlet holes, and thus assembling of the prefabricated protective wall and the beam body is completed. The structure is high in construction speed, large in construction allowable error, low in costand beneficial to application and popularization, and the quality is easy to guarantee.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a connection structure of a prefabricated assembled protective wall for a bridge and a construction method. Background technique [0002] In railway, urban rail transit, highway, municipal and other bridge projects, the beam surface needs to be equipped with a protective wall structure. The protective wall plays the role of blocking the ballast under the rail track, preventing train derailment, vehicle collision, etc., and is an important guarantee for driving and operation safety. . [0003] At present, the beam body is generally constructed by prefabrication, and the protective wall is generally constructed by cast-in-place construction, that is, after the erection of the prefabricated beam is completed, the reinforcement of the protective wall is bound on site and then the concrete is poured. The protective wall needs to be constructed after the erection of the be...

AI Technical Summary

Problems solved by technology

The protective wall needs to be constructed after the erection of the beam body, resulting in slow construction progress, slow speed of on-site steel bar binding, low work efficiency, and difficulty in ensuring quality. Especially for railway projects, the line is long, and the cast-in-place construction of the protective wall will restrict the construction duration, increased cost

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