Construction method for adjusting arc of small-radius curve section of paragraph edge beam flange plate

By combining CAD/BIM technology with a bidirectional adjustable tie rod system, the problem of insufficient curvature forming accuracy of the edge beam flange plate in small-radius curved sections was solved, realizing an efficient and economical bridge construction method and improving construction quality and efficiency.

CN122428593APending Publication Date: 2026-07-21XINJIANG ROAD & BRIDGE CONSTR GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XINJIANG ROAD & BRIDGE CONSTR GRP CO LTD
Filing Date
2026-04-15
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In bridge engineering, the curvature forming accuracy of the edge beam flange plate of small radius curved sections is insufficient. Traditional construction methods rely on experience-based adjustments, resulting in defects in the alignment quality, poor versatility of the formwork system, serious material waste, high construction costs, and high dependence on technical personnel.

Method used

CAD/BIM technology is used for precise verification and encrypted calculation to generate high-precision control data. A two-way adjustable precision-rolled threaded steel tie rod system is used in conjunction with total station detection to achieve dynamic adjustment of the flange plate formwork curvature and standardized construction process.

Benefits of technology

It improved construction accuracy and formwork turnover efficiency, reduced material and labor costs, ensured smooth and aesthetically pleasing lines and controllable construction quality, and achieved efficient conversion and economic benefits of the formwork system.

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Abstract

The present application relates to the field of bridge engineering construction technology, in particular to a small-radius curve segment side beam flange plate arc adjustment construction method, which comprises the following steps: using software to precisely check and dynamically encrypt the design C value, and generating high-precision control data chain with 1.0-1.5 m interval; then presetting welding points on the side mold back ribs, and installing a two-way adjustable fine rolling screw rod system; finally, laying out by the polar coordinate method of a total station, adjusting the length of the rod to apply controllable radial force to the template, so that the template produces elastic deformation to accurately fit the design arc. The present application solves the problems of low linear control precision and poor template versatility in traditional construction, realizes efficient application of a set of template and multiple linear forms, and significantly improves the flange plate linear quality and construction economic benefits. The present application is suitable for the construction of precast concrete side beams with a flat curve radius R≤250 m.
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