Egg-type underpass bridge cast-in-place box beam support template system

Abstract

The invention discloses an egg-type underpass bridge cast-in-place box beam support template system. A supporting area of a cast-in-place box beam is divided into an arc template area, a steel tube support area and a full support area; box beam end part supporting structures are correspondingly arranged in the arc template area and the steel tube support area; the box beam end part supporting structures comprise a plurality of steel tube uprights and main beams erected on the steel tube uprights; multiple template distribution beams placed in the axial direction of an underpass are erected ona corresponding main beam of the arc template area; set-shaped steel molds are arranged on the template distribution beams; multiple support distribution beams placed in the axial direction of the underpass are erected on a corresponding main beam of the steel tube support area; and supports of the steel tube support area are supported on the support distribution beams. The egg-type underpass bridge cast-in-place box beam support template system is mainly for egg-type underpasses; through the box beam end part supporting structures at the two ends of the underpass, the stress demands of end part structures are satisfied; and moreover, through coordination of the arc template area, the steel tube support area and the full support area, the arc supporting structure of the underpass is formedto satisfy a cast-in-place box beam structure with arc bottom.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, in particular to a cast-in-place box girder support formwork system for an egg-shaped underpass bridge. Background technique [0002] In the construction of existing underpassage bridges, the structural form of the oval underpassage is quite special. The top of the underpassage is an arc-shaped structure, and the end area of ​​the arc-shaped structure is close to the pier column, and the height of the upper structure is relatively high. high, the concrete load is large, and the support span is low. If the conventional steel tube Bailey support is used, there will be problems of inconvenient installation, and it will not be able to better meet the load and force requirements of the corresponding parts. Contents of the invention [0003] The object of the present invention is to provide a bracket formwork system mainly for the cast-in-place box girder of an egg-shaped underpass bridge...

AI Technical Summary

Problems solved by technology

[0002] In the construction of existing underpassage bridges, the structural form of the oval underpassage is quite special. The top of the underpassage is an arc-shaped structure, and the end area of ​​the arc-shaped structure is close to the pier column, and the height of the upper structure is relatively high. High concrete load, and the support span is low. If the conventional steel tube Bailey support is used, it will be inconvenient to install, and it will not be able to meet the load and force requirements of the corresponding parts.

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