Suspension bridge main cable maintenance access handrail replacement device and construction method

By using pipe clamps, connectors, and ultra-high molecular weight polyethylene segments in the handrails of the main cable maintenance passage of the suspension bridge, combined with sealant, modular installation was achieved, which solved the corrosion problem of the handrails in the main cable maintenance passage of the suspension bridge, improved construction safety and structural reliability, and reduced maintenance costs.

CN122105987APending Publication Date: 2026-05-29ZHEJIANG COMM CONSTR GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG COMM CONSTR GRP CO LTD
Filing Date
2026-02-25
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The handrails of the existing main cable maintenance passage of the suspension bridge are prone to corrosion during operation. High-altitude welding operations are difficult and unsafe, and the welding quality is not easy to control, resulting in reduced structural reliability.

Method used

The system employs pipe clamps fitted onto the columns and connectors attached to the pipe clamps, combined with pipe segments made of ultra-high molecular weight polyethylene material and sealant, to form multiple anti-corrosion barriers. Modular installation is achieved through bolt connections, avoiding high-altitude welding.

Benefits of technology

It improves construction safety and reliability, reduces maintenance difficulty and cost, enhances the weather resistance and durability of the device, avoids safety hazards caused by unstable welding quality, and ensures the rigidity and protective function of the railing.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122105987A_ABST
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Abstract

A kind of suspension bridge main cable maintenance access handrail rail replacement device, including being set on the main cable maintenance access, the maintenance access both sides are equipped with several columns, several columns are equipped with rail rope, column is also equipped with side column, the column is equipped with the connecting assembly for connecting and fixed rail rope;The connecting assembly includes the pipe clamp of being set on the column and the connecting piece being connected to the pipe clamp, and the rope board for fixing rail rope is arranged at the end of connecting piece;Compared with prior art, by the pipe clamp of being set on the column and the connecting piece being connected to the pipe clamp, the fundamental technical problem of " need to carry out welding operation in high altitude " in the background art is solved.When installing in situ, only need to put the pipe clamp on the column and fasten by bolt, the installation of main force structure can be completed, a series of problems such as the operation difficulty brought by high-altitude welding, the quality is not easy to control, there are security risks etc.are completely avoided, the safety and reliability of construction are greatly improved.
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