Large-span corrugated steel-concrete combined structure shed tunnel and construction method thereof

CN117449228BActive Publication Date: 2026-06-05GUANGXI COMM PLANNING SURVEYING & DESIGNING INST +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGXI COMM PLANNING SURVEYING & DESIGNING INST
Filing Date
2023-11-09
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing corrugated steel-concrete composite structures suffer from large structural deformation, low stability, and low impact resistance in long-span applications. Furthermore, the casting of the outer arc-shaped formwork of the reinforced concrete arch ring involves a large workload and is complex to construct.

Method used

The shed adopts a corrugated steel-concrete composite structure, which includes a corrugated steel arch ring and a reinforced concrete arch ring connected by shear members, an outer filling layer and a top steel mesh, and horizontal anchor bars connected to form a load-bearing system similar to an upper-bearing beam-arch composite structure. The construction method adopts the simultaneous pouring of the reinforced concrete arch ring and the filling layers on both sides.

Benefits of technology

It improves the impact resistance and load-bearing capacity of large-span corrugated steel tunnels, enhances overall stability, simplifies the construction process, and meets the protection needs of tunnels with larger spans.

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Abstract

The present application relates to a kind of large-span corrugated steel-concrete composite structure shed hole and its construction method.A kind of large-span corrugated steel-concrete composite structure shed hole, by setting filling layer, the deformation of both sides of corrugated steel-concrete composite arch ring can be reduced, to ensure the stability of structure;And by setting horizontal top steel bar mesh in filling layer above the top of corrugated steel-concrete composite arch ring, wherein the vertical shed hole axial direction is main stress reinforcement, top steel bar mesh, filling layer and corrugated steel-concrete composite arch ring are stressed together, form similar deck beam arch combination stress system, greatly improve the impact resistance and bearing capacity performance of large-span corrugated steel shed hole, while horizontal anchor steel bar is arranged on both sides of corrugated steel-concrete composite arch ring, horizontal anchor steel bar is anchored into a whole with both sides filling layer concrete of corrugated steel-concrete composite arch ring, further improve the overall stability and stress performance of shed hole, so that it can meet the larger span shed hole protection demand.
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