A transfer passage reconstruction method using a beam-column structure instead of a wall

By adopting a beam-column structure to replace the wall in the transfer passage renovation method, the wall was demolished in stages and the side support columns and top support beams were constructed. This solved the structural cracking problem caused by the lack of reserved conditions for transfer renovation and achieved safe connection between the new line and the existing line station.

CN122280374APending Publication Date: 2026-06-26CHINA MCC 2 GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA MCC 2 GRP CO LTD
Filing Date
2026-04-21
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

During subway station construction, if existing lines do not have reserved conditions for transfer and renovation, forcibly breaking down side walls can easily cause cracks in the existing line's side walls and roof structure, affecting operational safety.

Method used

The method of transforming the transfer passage by adopting a beam-column structure instead of a wall involves breaking down the wall in stages and constructing side support columns and top support beams in stages, with temporary support components to temporarily support the force, ultimately realizing the connection of the passage from the wall.

Benefits of technology

Without compromising the structural safety of the existing line, the connection between the new line and the existing line station transfer passage was achieved, solving the structural cracking problem caused by the lack of reserved conditions for transfer renovation and ensuring operational safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a method for renovating a transfer passage using a beam-column structure instead of walls. The method includes: demolishing the walls on both sides of the pre-demolition location of the transfer passage to create two column casting spaces; horizontally demolishing the wall above the pre-demolition location; constructing the ends of the side support columns and top support beams to form an inverted L-shape; horizontally demolishing the remaining wall above the transfer passage; constructing the middle section of the top support beam and connecting it to the pre-cast ends of the top support beam; removing the vertical temporary supports below the top support beam and demolishing the remaining wall below the top support beam to form the transfer passage. This invention uses a step-by-step wall demolition and construction process to achieve the side support columns and top support beams replacing the wall structure for load-bearing. During construction, new side support columns and top support beams are added in conjunction with temporary supports to temporarily bear the load, ultimately achieving the side support columns and top support beams replacing the original wall structure for load-bearing. The construction method is relatively simple.
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