A prefabricated reinforced concrete frame structure with steel component connections

Prefabricated reinforced concrete frame structures connected by steel components solve the problems of complex formwork, cumbersome support, and insufficient reliability of node connections in traditional construction. They enable efficient and reliable support-free and formwork-free construction, improving construction efficiency and structural performance, and are suitable for multi-story buildings.

CN224705271UActive Publication Date: 2026-09-01曾盛
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Patent Information

Application Number
CN202522183599.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-15
Publication Date
2026-09-01
Estimated Expiration
2035-10-15

AI Technical Summary

Technical Problem

Traditional reinforced concrete frame structure construction suffers from problems such as complex formwork, cumbersome support, and insufficient reliability of node connections, resulting in low construction efficiency, high costs, and safety hazards, and making it difficult to achieve completely support-free and formwork-free construction.

Method used

The prefabricated reinforced concrete frame structure, which uses steel components for connection, achieves standardized production of components in the factory through prefabricated component design and node connection methods. On-site assembly is done without formwork or temporary support. The coordinated design of prefabricated columns, prefabricated main beams, prefabricated secondary beams, composite ribbed slabs and steel components forms a complete load-bearing system. Mechanical connections such as steel embedded parts, corbels and grouting sleeves are used to reduce on-site wet work.

Benefits of technology

It improves construction efficiency, ensures the integrity and seismic performance of the structure, reduces construction costs and safety risks, achieves green and environmentally friendly construction, and is suitable for multi-story buildings.

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Abstract

This utility model discloses a prefabricated reinforced concrete frame structure with steel component connections, belonging to the field of prefabricated building construction technology. Addressing the problems of cumbersome formwork support in traditional cast-in-place frames and the unreliability and partial need for formwork support in existing prefabricated joint connections, this structure includes precast columns, precast main beams with or without corbels, precast secondary beams, composite ribbed composite slabs, and column-to-column connection embedded parts. Rigid beam-column connections are achieved through T-shaped steel corbels, channel steel corbels, steel embedded parts components, and rebar bolt connectors. Grouting sleeves of the column-to-column connection embedded parts connect the longitudinal reinforcement of the upper and lower columns. Steel clips on the composite ribbed composite slabs are engaged and positioned with the main beams, and the precast layer serves as the bottom formwork. This structure achieves a completely support-free and formwork-free process, continuous force transmission at joints, strong seismic resistance, factory prefabrication ensuring quality, high on-site assembly efficiency, reduced construction waste, adaptability to multiple scenarios, and ease of modification. It is suitable for frame buildings such as residential and office buildings.
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