A concrete i-beam composite beam structure and construction method

By using a concrete I-beam composite beam structure, combined with steel structure riser support and concrete rectangular end shear beam segments, the problems of complex construction, heavy self-weight, and poor torsional resistance of large-span beam structures were solved, achieving lightweight and efficient construction.

CN116290562BActive Publication Date: 2025-11-043RD CONSTRUCTION (SHENZHEN) CO LTD OF CHINA CONSTRUCTION 5TH ENGINEERING BUREAU
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Patent Information

Application Number
CN202310476782.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-04-26
Publication Date
2025-11-04
Estimated Expiration
2043-04-26

AI Technical Summary

Technical Problem

Existing large-span beam structures are complex to construct, have heavy self-weight, are difficult to control in terms of deflection and cracking, and have poor torsional resistance.

Method used

The structure adopts a concrete I-beam composite beam structure, including a middle I-beam segment, a riser support assembly, and end shear beam segments. The riser support assembly is made of steel. The riser support assembly is arranged on both sides of the web of the middle I-beam segment, and the end shear beam segments are concrete rectangular structures. The composite beam method reduces the self-weight and improves the structural stability and torsional performance.

Benefits of technology

It reduces the self-weight of long-span beams, improves structural stability and torsional resistance, simplifies the construction process, and increases material utilization and construction efficiency.

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Abstract

The application is suitable for the field of building construction, and provides a concrete I-shaped composite beam structure and a construction method. The concrete I-shaped composite beam structure comprises: a middle I-beam section; a vertical pipe support assembly in steel structure, a plurality of which are arranged on opposite sides of the web of the middle I-beam section and are arranged along the length direction of the middle I-beam section, and the upper and lower ends of the vertical pipe support assembly are connected to the upper flange and the lower flange of the middle I-beam section, respectively; and an end shear beam section in concrete rectangular structure, which is integrally formed at the two ends of the middle I-beam section. The concrete I-shaped composite beam structure provided by the application can reduce the self weight of the large-span beam when applied to the large-span beam, make the stress more reasonable, improve the material utilization rate, and is relatively simple to construct.
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