Template for expanding construction of stand column in station

By using a multi-layered structural template design and steel hoop clamping, the problems of insufficient rigidity and poor sealing of existing templates were solved, achieving efficient and high-quality forming of the vehicle platform column diameter expansion construction, and improving the appearance quality and construction efficiency.

CN224495784UActive Publication Date: 2026-07-14SINOHYDRO BUREAU 11 CO LTD
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Patent Information

Application Number
CN202521646780.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-05
Publication Date
2026-07-14
Estimated Expiration
2035-08-05

AI Technical Summary

Technical Problem

The existing formwork for expanding the diameter of the internal columns of the station suffers from insufficient rigidity, easy deformation, poor joint sealing, and serious grout leakage, resulting in poor column appearance quality and affecting construction efficiency and quality stability.

Method used

The multi-layered template design includes melamine board, plywood, supporting wooden strips, and assembled wooden strip layers, which are tightened with steel hoops on the outside and combined with metal molds to ensure the stability of the template and the flatness of the inner surface, thereby improving the installation accuracy of the template.

Benefits of technology

It significantly improved construction efficiency and column appearance quality, reduced rework frequency, ensured concrete forming effect and overall quality, and met the standards for high-quality projects.

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Abstract

The utility model provides a formwork for expanding construction of stand columns in a station. The formwork comprises a steel hoop assembly and a wood formwork assembly. The wooden formwork assembly comprises two semicircular formworks, and the two semicircular formworks are encircled and spliced to form a whole circle; the formwork sequentially comprises a fireproof plate layer, a plywood layer, a supporting batten layer and an assembling batten layer from inside to outside. The fireproof plate layer and the plywood layer are fixed in a gluing manner and are used for flattening the inner surface of the template; the supporting batten layer is arranged around the periphery of the plywood layer in a gluing mode and used for supporting the whole circle. The splicing batten layer wraps the supporting batten layer and is used for restraining the overall appearance of the formwork; each steel hoop assembly comprises a pair of semicircular steel hoops arranged in pairs, the semicircular steel hoops are used for being locked outside the wood formwork assembly, and the steel hoop assemblies are arranged in the length direction of the wood formwork assembly at equal intervals. The formwork has the advantages that the construction efficiency is improved, and the appearance quality of the expanded stand column is guaranteed.
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