A zigzag post-cast strip structure

CN224314248UActive Publication Date: 2026-06-02GUANGDONG CONSTR ENG GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG CONSTR ENG GRP
Filing Date
2025-04-23
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In existing technologies, the bond between the concrete base slab and the post-cast strip is relatively loose, which easily leads to cracks and a weak connection.

Method used

The project employs a sawtooth-shaped post-cast strip structure. Protruding strips and water-stop steel plates are installed between the concrete base slab and the post-cast strip. The protruding strips interlock with each other, and rubber strips and threaded steel bars are installed on the water-stop steel plates to enhance the connection. Expansion concrete is used in combination to improve the tightness of the connection and waterproofness.

Benefits of technology

It improves the connection tightness between the concrete base slab and the post-cast strip, reduces the chance of liquid water penetration and steel reinforcement corrosion, extends the service life of reinforced concrete structures, and improves construction efficiency.

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Abstract

This application relates to a sawtooth-shaped post-cast strip structure in the field of reinforced concrete structures. It includes a foundation, multiple concrete slabs, and a post-cast strip. The concrete slabs are cast on the foundation, with gaps between adjacent slabs. Cement mortar is poured into these gaps to form the post-cast strip. Multiple protruding strips (first type) are provided on the sidewalls of the concrete slabs, with their length direction horizontal and spaced vertically. Multiple protruding strips (second type) are provided on the sidewalls of the post-cast strip, with their length direction horizontal and spaced vertically. The protruding strips (first type) and (second type) interlock with each other. This application improves the tightness of the connection between the concrete slabs and the post-cast strip.
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