Split type frame bridge and culvert construction formwork for high-speed railway

By designing a high-speed railway split-frame bridge and culvert construction formwork frame, the problems of unstable appearance quality and long construction period in the construction of traditional cast-in-place formwork in the bridge and culvert construction are solved, and the surface flatness and appearance quality of the bridge and culvert surface are improved, as well as the improvement of construction efficiency and progress are achieved.

CN222685321UActive Publication Date: 2025-03-28CHINA CONSTR FIRST DIV GROUP CONSTR & DEV
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Patent Information

Application Number
CN202421360713.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-14
Publication Date
2025-03-28
Estimated Expiration
2034-06-14

AI Technical Summary

Technical Problem

In the construction of high-speed railway culverts, traditional cast-in-place formwork has problems such as unstable appearance quality, long construction cycle, and time-consuming and laborious installation and demolition, resulting in delays in construction periods and increased costs.

Method used

A high-speed railway split-frame bridge and culvert construction formwork frame is designed. By setting up longitudinal positioning columns, door-type limit frames, inner and outer formwork groups, top formwork groups and bowl-buckle bracket components, the formwork panels are simplified, and the surface flatness and appearance quality stability of the bridge and culvert surface are improved.

Benefits of technology

This technical solution simplifies the installation and removal process of the formwork, improves the surface flatness and appearance quality stability of the bridge culvert, shortens the construction cycle, and accelerates the construction progress of the bridge culvert.

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Abstract

The utility model discloses a high-speed railway split type frame bridge and culvert construction formwork which is arranged on a cast-in-place bottom plate, longitudinal positioning columns are arranged on the left side and the right side of the cast-in-place bottom plate, a plurality of door-shaped limiting frames are fixed to the two longitudinal positioning columns and stretch across the cast-in-place bottom plate, and the door-shaped limiting frames are fixed to the left side and the right side of the cast-in-place bottom plate. Structural steel bars extending upwards are arranged on the left side and the right side of the cast-in-place bottom plate, outer formwork sets are laid on the left side faces of the structural steel bars, inner formwork sets are laid on the right side faces of the structural steel bars, the inner formwork sets are clamped between the structural steel bars and the door-shaped limiting frame, and a top formwork set is jointly arranged on the upper portions of the opposite side faces of the two outer formwork sets. End face formworks attached to the side faces of the door-shaped limiting frame abut against the front end faces and the rear end faces of the two inner formwork sets, the two outer formwork sets and the top formwork set, and a bowl buckle type support assembly is jointly arranged among the cast-in-place bottom plate, the top formwork set and the two outer formwork sets. The surface flatness and the appearance quality stability of the bridge and culvert are improved, and the construction progress of the bridge and culvert is accelerated.
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