Construction method of integral hydraulic box girder formwork

Abstract

The invention discloses a construction method of an integral hydraulic box girder formwork. The construction method includes the steps that a bridge is divided into a plurality of curved sections anda plurality of straight sections according to a drawing of the to-be-built bridge; a construction platform is set up; an external formwork is spliced and installed; an internal formwork is spliced andinstalled; a box girder steel cage is installed; concrete pouring and primary curing are conducted; and the box girder formwork is removed. According to the construction method of the integral hydraulic box girder formwork, a splicing module and a triangular wedge are used as basic units, a curved outer side form and a curved inner side form of a curved box girder are molded to be straight and obtained by splicing and assembling, thus the curved outer side form and the curved inner side form are recycled and reused, and the construction cost is lowered.

Description

technical field [0001] The invention relates to the field of box girder formwork construction methods. More specifically, the present invention relates to an integral hydraulic box girder formwork construction method. Background technique [0002] The existing box girders are all straight-line structures, and most of the spanning bridges can be built. However, due to the construction of modern urban traffic, people have certain requirements for aesthetics while paying attention to practicality. It is more aesthetic than the linear structure, but it is more difficult to construct than the linear structure; the existing construction method of the curved box girder is to use the curved formwork, splicing, and pouring concrete to obtain it, but different The curvature of the curved box girder is different, so the curved formwork used once, especially the side formwork, cannot be reused, which makes the cost of the curved box girder higher. Contents of the invention [0003] ...

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Problems solved by technology

[0002] The existing box girders are all straight-line structures, and most of the spanning bridges can be built. However, due to the construction of modern urban traffic, people have certain requirements for aesthetics while paying attention to practicality. It is more aesthetic than the straight-line structure, but it is more difficult to construct than the straight-line structure; the existing construction method of the curved box girder is to use the curved formwork, splicing, and pouring concrete to obtain it, but different The curvature of the curved box girder is different, so the curved formwork used once, especially the side formwork, cannot be reused, which increases the cost of the curved box girder

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