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Precast concrete beam

A prefabricated concrete and concrete technology, applied in the direction of joists, girders, trusses, etc., can solve the problems of low construction efficiency and construction quality risks, and achieve the effect of avoiding falling off and ensuring construction quality and safety.

Inactive Publication Date: 2009-11-18
VANKE
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, traditional buildings are all completed through on-site construction (such as on-site casting of concrete frames, floors, etc.), which not only has risks in building quality due to the technical level of construction personnel, but also has the problem of low construction efficiency.

Method used

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  • Precast concrete beam
  • Precast concrete beam
  • Precast concrete beam

Examples

Experimental program
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Embodiment Construction

[0021] Such as Figure 1-3 Shown is a schematic structural view of a prefabricated concrete beam embodiment of the present invention. The prefabricated concrete beam includes a beam body 10 composed of main bars 12 , stirrups 13 and concrete 11 .

[0022] The main bars 12 are multiple parallel bars arranged along the length direction of the beam body 10 , and only the ends of the beam body 10 are exposed. The stirrup 13 is rectangular, including a vertical part and a horizontal part. The plane of the frame-shaped stirrup 13 is perpendicular to the main reinforcement 12 , that is, perpendicular to the length direction of the beam main body 10 . Each of the above-mentioned stirrups 13 can be formed by bending a steel bar. A plurality of main reinforcements 12 are fixed on the horizontal part of the bottom of the stirrups 13 and poured into the concrete 11. The above-mentioned fixing can be welding or steel wire binding. A plurality of main reinforcements can also be fixed at ...

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Abstract

The invention relates to a precast concrete beam comprising a beam main body. The beam main body comprises a main rid along the length direction of the beam main body, a reinforcement stirrup perpendicular to the length direction of the beam main body and concrete; the upper part of the reinforcement stirrup exposes out of the beam main body and the lower part is cast into the concrete; side walls formed by the concrete are arranged between two side surfaces of the beam main body and the reinforcement stirrup; and the width of the side wall is not less than 30 mm. In the prefabricated concrete beam, the side wall with a certain width is prefabricated outside the reinforcement stirrup, not only serves as the protection layer of a beam reinforcement steel bar, but also enables the beam to resist the impact in lifting and serves as a support to support a precast floor slab and bear the side pressure of casting concrete after mounting the floor slab, thereby ensuring the quality and the safety of construction.

Description

technical field [0001] The invention relates to the field of construction, and more specifically, to a prefabricated concrete beam. Background technique [0002] With the rapid development of urbanization in China, the urban population density is increasing, people's demand for housing is becoming more and more urgent, and the high-rise, large-scale and complexity of buildings are constantly increasing. Traditional buildings are all completed through on-site construction (such as on-site casting of concrete frames, floors, etc.), which not only has risks in building quality due to the technical level of construction personnel, but also has the problem of low construction efficiency. [0003] Construction industrialization production technology refers to the centralized production and processing of various building components (such as columns, beams, floors, etc.) in factories, and on-site transportation, assembly and construction. The adoption of construction industrializat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/20
Inventor 刘成全
Owner VANKE
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