Method for removing and falling original hard cross beam after newly-built station building

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By installing slideways and sliding supports on the floor truss structure of the newly built station building, and combining them with tools such as chain hoists, the rigid crossbeams were dismantled efficiently and safely, solving the problems of low dismantling efficiency and high danger in existing technologies.

CN117905287BActive Publication Date: 2026-07-21CHINA RAILWAY CONSTR GROUP CO LTD

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: CHINA RAILWAY CONSTR GROUP CO LTD
Filing Date: 2023-12-27
Publication Date: 2026-07-21

AI Technical Summary

Technical Problem

The lack of convenient and labor-saving methods for dismantling rigid crossbeams in existing technologies leads to low dismantling efficiency and high risk in expansion projects.

Method used

Slides were installed on the floor truss structure of the new station building. Using sliding supports and chain hoists, the rigid crossbeams were transferred to the platform on one side and then lowered onto the platform. Safety control was carried out by combining finite element calculations and stress data monitoring.

Benefits of technology

This improved the efficiency and safety of rigid beam removal, reduced operational difficulty and risks, and ensured the smooth progress of the construction process.

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Abstract

The application provides a method for removing and falling a hard beam after a new station building is built, wherein the method for removing the hard beam after the new station building is built is not directly removed in situ, so that the method for directly removing in situ is low in efficiency and high in risk coefficient. The application utilizes the positional relationship between the floor truss structure of the new station building and the hard beam, installs a slide on the floor truss structure of the new station building, connects the hard beam and the sliding support on the slide, and then shifts the hard beam to one side of the platform by sliding and lifting, so that the hard beam is lowered onto the platform after being above the platform, and the removal is completed, so that the removal process is high in efficiency and safe in operation.

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