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Superposed beam connection joint, construction method and superposed beam production process

A technology for connecting nodes and production processes, applied in joists, girders, truss beams, etc., can solve the problems of poor strength of connecting nodes, poor bending resistance of laminated beams, etc., and achieve strong bending resistance, improved performance, and excellent tensile performance. Effect

Inactive Publication Date: 2020-01-03
孔瑞清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] In order to solve the deficiencies of the prior art, the present invention provides a composite beam connection node and a construction method, which are used to solve the problems of poor bending resistance and poor connection strength of the existing composite beam

Method used

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  • Superposed beam connection joint, construction method and superposed beam production process
  • Superposed beam connection joint, construction method and superposed beam production process
  • Superposed beam connection joint, construction method and superposed beam production process

Examples

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Effect test

Embodiment 2

[0080] This embodiment introduces the second implementation mode. In this mode, the composite beam 002 has the same structure as the above-mentioned composite beam. Refer to Figure 7 , the difference is that a corbel 003 made of concrete is prefabricated on the concrete column 001, and the structure of the corbel is the same as that of the end of the composite beam, that is, a T-shaped groove is provided on the corbel 003, that is, The T-shaped slot is a part of the corbel, and the connecting piece 400 is used between the corbel and the composite beam for quick connection, and the secondary pouring of concrete can also realize the final prefabricated connection.

Embodiment 3

[0082] Further improvement is carried out on the basis of Embodiment 1. Specifically, the steel bar 110 part is curved at the end of the secondary pouring area, that is, a curved structure. This structure is conducive to improving the strength of the steel bar in the secondary pouring area. Pull-out resistance. refer to Figure 13 The structure and style shown in . At the same time, between two adjacent composite beams, the ends of the steel strands are fixed and fastened with U-shaped locks to form an integrated structure.

Embodiment 4

[0084] The above steel bar 11 is replaced by a light steel keel 110'. Specifically, the light steel keel is rolled with a thin steel plate of 1 to 3 mm, and the cross section is a U-shaped channel steel structure, and it is galvanized. The middle part has a curved structure that arches upwards. refer to Figure 14 The style shown in .

[0085] In this embodiment, the bending prestress of the channel steel and the tension prestress of the steel strand are fully utilized.

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Abstract

The invention discloses a superposed beam connection joint, a construction method and a superposed beam production process so that the problem that an existing superposed beam connection joint is nothigh in shock strength can be solved. The connection joint comprises a concrete column and superposed beams. A steel reinforcement framework portion in each superposed beam comprises stirrups, straight rebars, steel strands and steel plates, wherein the straight rebars are located on the upper portion of the framework portion and connected to the stirrups and the steel plates in a welding mode; the steel strands are located on the lower portion of the framework portion and fixed to the steel plates at the two ends by using locking assemblies, and the steel strands are tensioned under the effect of tensile force, so that the middles of the straight rebars have the upward arching radian; T-shaped grooves are formed in the two ends of each superposed beam correspondingly and penetrate throughU-shaped grooves in the steel plates correspondingly; and the superposed beams are connected through a connecting component or the superposed beams are connected with the concrete column through connecting components, and secondary concrete pouring is performed. The steel strands, the rebars, the steel plates and the connecting components form an elastic high-strength framework, a building is formed as a whole, and the overall shock resistance is improved.

Description

technical field [0001] The invention relates to the composite beam technology in the technical field of prefabricated buildings. Background technique [0002] The structure and construction method of composite beams, in traditional technology, construction methods include: [0003] A. The prefabricated part of the prefabricated composite beam; [0004] B. Build a support system, hoist the prefabricated part of the prefabricated composite beam to the support system; [0005] C. Intersperse the upper reinforcement of the composite beam; [0006] D. Binding cast-in-place column reinforcement; [0007] E. Install formwork and pour concrete for cast-in-place beams and columns. Among them, the composite beam is composed of the internal steel skeleton skeleton and the concrete part covering the steel skeleton. [0008] In the patent technical document: CN108999295A, it is a main method of prefabricated construction of composite beams, which can be used for reference and unders...

Claims

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Application Information

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IPC IPC(8): E04C3/22E04B1/58
CPCE04B1/5831E04C3/22
Inventor 不公告发明人
Owner 孔瑞清
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