Full bolt connection frame system of outer package steel fiber concrete shaped column and construction method

CN117702910BActive Publication Date: 2026-07-03CHINA RAILWAY REAL ESTATE GRP DESIGN CONSULTING CO LTD +1

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: CHINA RAILWAY REAL ESTATE GRP DESIGN CONSULTING CO LTD
Filing Date: 2023-12-12
Publication Date: 2026-07-03

AI Technical Summary

Technical Problem

Existing prefabricated buildings have problems such as high precision requirements for beam-column joint connections, difficulty in docking, insufficient energy consumption of plastic hinges at joints, complex steel welding, large amount of steel reinforcement, and low utilization rate of building space.

Method used

The system adopts an external steel fiber reinforced concrete (SFR) steel-reinforced irregular steel column all-bolted connection frame system, including SFR steel column modules, SFR steel beam modules, slab modules and basement modules. It uses all-bolted connections, lower support plates and overhang plates for precise positioning, combined with channel steel connectors and longitudinal irregular stiffening plates to reduce on-site welding and enhance node stiffness and shear resistance.

Benefits of technology

It achieves high precision and rapid assembly, reduces the amount of steel reinforcement, improves the utilization rate of building space, reduces environmental pollution, meets the design concept of "strong nodes and weak components", and improves construction quality and efficiency.

✦ Generated by Eureka AI based on patent content.

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Figure CN117702910B_ABST

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Abstract

The application relates to a full-bolt connecting frame system of an outer steel fiber concrete shaped steel special-shaped column and a construction method, which comprises a shaped steel concrete special-shaped column module, a shaped steel concrete beam module, a plate module and a basement module, the shaped steel concrete special-shaped column module and the basement module both comprise a steel fiber concrete shaped steel special-shaped column and a node connecting piece, the steel fiber concrete shaped steel special-shaped column comprises shaped steel with an L-shaped, T-shaped or cross-shaped section and outer steel fiber concrete; the node connecting piece comprises a lower supporting plate, an overhanging plate, a node domain connecting plate and a negative bending moment steel bar connecting piece, the basement retaining wall is field tied with steel bars, and concrete is poured to form the retaining wall. The edge column and the corner column at the column foot of the basement column are rigidly connected with the raft foundation, and the middle column is hingedly connected with the raft foundation. The beam column can be assembled on site through full bolts, the assembling speed is high, and the construction period is shortened. The beam column uses steel fiber concrete, the amount of steel bars is reduced, the concrete crack resistance is enhanced, and the building carbon emission is reduced.

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