Bridge merging section splicing construction method

By setting steel supports on the top of the cap beam at the bridge merging section as track supports for the double-beam bridge erecting machine, the problems of long construction time and high cost in the existing technology are solved, and rapid and low-cost construction of the bridge merging section is realized.

CN122236031APending Publication Date: 2026-06-19GUIZHOU ROAD & BRIDGE GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUIZHOU ROAD & BRIDGE GRP
Filing Date
2026-04-24
Publication Date
2026-06-19

AI Technical Summary

⚠Technical Problem

In existing technologies, when widening bridge sections merging into other roads, conventional single-beam bridge erecting machines cannot be used, resulting in long construction times, complex procedures, and high costs, necessitating the customization of specialized bridge erecting machines.

⚗Method used

Steel supports are installed on the top of the cap beam of the newly built widened bridge. The steel supports are used as the track support base of the double-guide beam bridge erecting machine to form the transverse width and support structure. The double-guide beam bridge erecting machine is used to complete the overall erection of the bridge into the road section. The operation channel is formed by temporarily occupying the emergency lane and slow lane.

🎯Benefits of technology

It simplifies the construction process, shortens the construction time, reduces construction costs, and avoids the need for custom-made bridge erecting machines.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to the field of bridge construction technology, specifically disclosing a method for splicing bridge sections merging into other sections. The method includes: Step 1, Lane Occupation Planning: Temporarily occupying the emergency lane and slow lane of the existing highway to create an operating channel for the bridge erecting machine; Step 2, Support System Construction: Setting up steel supports on the top of the cap beam of the newly constructed widened bridge as horizontal support bases for the bridge erecting machine's track; Step 3, Equipment Layout: Placing the track of the double-guide beam bridge erecting machine horizontally across the steel supports, allowing the track to cross the existing highway transversely; Step 4, Continuous Beam Erection: Using the double-guide beam bridge erecting machine, sequentially hoisting all the precast beams of the widened bridge to complete the overall erection of the widened bridge. This method solves the technical problem in existing technologies where, if a conventional single-guide beam bridge erecting machine cannot be used, a specially customized bridge erecting machine must be commissioned, resulting in long construction times, complex construction procedures, and high construction costs.
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