Prefabricated cable trough on a high-speed railway box girder bridge deck

Abstract

The invention relates to the technical field of high speed railway bridge floor structures, in particular to a high speed railway box girder bridge floor prefabricated cable trough. The lower end of a vertical wall and the lower end of a protection wall are anchored to a bridge floor through a first anchorage structure; the first anchorage structure comprises first rebars preburied in the vertical wall and the protection wall and a first sleeve preburied in the bridge floor; the first rebars comprise upper half portions prebured in the vertical wall or the protection wall and lower half portions exposed out of the vertical wall or the protection wall; the first sleeve is of a hollow barrel-shaped structure anchored in the bridge floor, an opening is formed in the upper end of the first sleeve, and the exposed lower half portions of the first rebars stretch into the first sleeve in the vertical direction and are fixedly connected with the first sleeve through grouting materials poured into the first sleeve. The high speed railway box girder bridge floor prefabricated cable trough is simple in structure and convenient to mount, the connecting mode is easy and convenient, the mounting efficiency of a bridge floor wall structure can be greatly improved, the service life of the wall structure can be prolonged, and a large quantity of manpower and material resources is saved.

Description

Technical field [0001] The invention relates to the technical field of high-speed railway bridge deck structures, in particular to a prefabricated cable trough for high-speed railway box girder bridge decks. Background technique [0002] In order to improve construction efficiency and control the quality of bridges, factory-standardized precast concrete box beams are widely used in high-speed railway bridges. After the box girder is prefabricated in the prefabrication plant, it is sent to the construction site by the girder truck for erection. The box girder bridge deck cable trough is constructed by cast-in-place bridge deck construction. The pre-fabricated box girder flange plate is used to bind the pre-embedded steel bars with the cable trough vertical wall and the wall reinforcement of the protective wall, and pour concrete to form the cable trough. However, because the exposed embedded steel bar of the cable trough on the bridge prevents the passing of the beam carrier, the...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the construction of the cable trough in the prior art mentioned in the above background technology needs to repeatedly bend the pre-embedded steel bars, resulting in the reduction of the service life of the reinforced concrete after pouring, and to provide a high-speed railway box girder bridge deck Prefabricated cable duct

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