Construction method of sliding hanger for closure section of continuous beam across existing line

By adopting the sliding hanging frame construction method in cross-existing lines, the problem of traditional construction methods occupying space for a long time is solved, and efficient and safe construction of the joint section is achieved, reducing the impact on the operation of the existing line and the construction cost.

CN119754184AActive Publication Date: 2025-04-04CHINA RAILWAY BEIJING ENG GRP CO LTD +2
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Patent Information

Application Number
CN202510250477.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2025-04-04
Estimated Expiration
2045-03-04

AI Technical Summary

Technical Problem

Traditional construction methods require a long time to install and remove the hanger above the existing line, which leads to interference in the existing line operations, long construction cycle and high cost.

Method used

The construction method of sliding hanger spanning the existing wire continuous beam joint section is adopted. By installing the construction track, the hanger is installed on the track through the suspension system, and the test movement and verification is carried out to ensure the stability of the hanger, and then the hanger is closed and then the construction is carried out, and finally the removal and recycling is carried out.

Benefits of technology

Minimize interference to existing line operations, reduce construction safety risks, shorten the construction cycle of the dragon section, improve construction efficiency, and reduce equipment investment and labor costs.

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Abstract

The present invention relates to the technical field of bridge construction, and in particular to a method for constructing a sliding hanger across a continuous beam closure section of an existing line, comprising: installing a construction track above the section to be closed, mounting the hanger on the track through a suspension system, preliminarily determining the diameter and quantity of the fine-rolled steel according to the weight of the hanger, and verifying it according to the construction duration. The hanger is moved to determine its stability with the suspension system, and after the closure section is rotated and raised, the hanger is moved to the closure area for construction, and is returned and removed after completion. The present invention avoids long-term and large-scale installation and removal of hangers above existing lines through the construction of sliding hangers, reduces interference with the operation of existing lines, and reduces safety risks. Its installation, positioning and removal are simple and quick, shortening the construction period and improving efficiency. During construction, the performance of the hanger is accurately measured and controlled, and verified to ensure construction quality, reduce costs, and have good economic benefits.
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