Cast-in-place continuous box girder construction system and construction technology

Abstract

The invention relates to the technical field of bridge construction, in particular to a cast-in-place continuous box girder construction system and a construction technology. The cast-in-place continuous box girder construction system comprises a formwork device, the formwork device comprises an outer formwork, an inner formwork, a top formwork and an end formwork, the outer formwork, the top formwork and the end formwork define a closed structure, and the inner formwork is arranged in the closed structure; the two axial ends of the inner mold abut against the end molds, an isolation supporting mechanism is arranged between the outer mold and the inner mold and comprises a supporting steel bar, abutting ends and clamping ends, the abutting ends are fixed to the two axial ends of the supporting steel bar, and the clamping ends are arranged at the ends, away from the supporting steel bar, of the abutting ends. The ends, away from the steel bars, of the abutting ends abut against the sides, close to each other, of the inner mold and the outer mold, and the clamping ends are clamped and fixed to the inner mold or the outer mold. The cast-in-place continuous box girder construction system has the following effects that the inner mold is fixed through the isolation supporting mechanism and is kept stable in the outer mold and not prone to shaking, and therefore deviation is not prone to being generated after a continuous box girder is formed.

Description

technical field [0001] The application relates to the technical field of bridge construction, in particular to a cast-in-place continuous box girder construction system and construction technology. Background technique [0002] In bridge engineering, if the same beam is supported by three or more piers, the beam can be called a continuous beam. The continuous box girder is a continuous beam with a hollow interior and flanges on both sides of the upper part, so it is named for its similarity to a box. The cast-in-place continuous box girder is the continuous box girder cast on the construction site. With the improvement of bridge technology in our country, the beauty of the bridge is getting higher and higher. The cast-in-place continuous box girder has the advantages of simple shape, beautiful appearance, high torsional rigidity, good integrity and strong applicability, and plays an important role in bridge construction. important role. [0003] The pouring construction o...

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that the stability of the inner mold in the outer mold affects the forming effect of the cast-in-place continuous box girder. If the inner mold is not fixed firmly, the size of the cast-in-place continuous box girder is prone to deviation after forming and the forming effect will be reduced. Poor, in severe cases, the cast-in-place continuous box girder cannot even be formed

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