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Prefabricated reinforced concrete hollow web girder and construction method thereof

A reinforced concrete and hollow beam technology, applied in joists, girders, trusses and other directions, can solve the problems of collision, inability to flexibly adjust the position of embedded parts, inconvenient to change, modify and adjust the pipe layout, etc., to facilitate on-site construction, convenient crossing and The effect of embedded parts layout

Inactive Publication Date: 2014-08-27
朱彤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] First, it is difficult for plumbing and electrical professional pipelines to pass through solid prefabricated parts. Even if holes or sleeves are reserved in beam components in advance during the design and component processing stages, it will place quite high requirements on the professional organization and construction accuracy of pipelines passing through beams. The current construction It is difficult to meet the conditional restrictions, and it is not convenient to adjust the pipe layout with project changes; second, the embedded parts in the beams have been fixed during prefabrication, and there are often collisions with the prefabricated floor ribs on site, so the position of the embedded parts cannot be flexible depending on the actual situation on site Adjustment

Method used

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  • Prefabricated reinforced concrete hollow web girder and construction method thereof
  • Prefabricated reinforced concrete hollow web girder and construction method thereof
  • Prefabricated reinforced concrete hollow web girder and construction method thereof

Examples

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Effect test

specific Embodiment

[0032] Such as figure 1 As shown, the longitudinal sections of the prefabricated vierendeel beam extension beam are set into two types: solid section 1 and hollow section 2, and the arrangement and combination of the two sections within the beam length range can be determined according to design and construction requirements.

[0033] Such as figure 2 As shown, it is a transverse cross-sectional view of the solid section 1. The number 3 in the figure is a longitudinal reinforcement, and the number 4 is a stirrup. Whether the stirrups in the beam are arranged or not can be selected according to the design load effect.

[0034] Such as Figure 3 to Figure 6 As shown, it is a transverse cross-sectional view of the empty stomach section 2, and the number 5 in the figure is reinforced concrete, and the number 6 is a cavity. The structural form of the cavity 6 can consider two factors: the direction of the hole and the closure of the hole end. The direction of the hole means tha...

Embodiment 1

[0036] Such as image 3 As shown, the cavity 6 is a two-way hole and two-way non-closed form, that is, holes are respectively opened in the horizontal direction and the vertical direction along the transverse direction of the beam, and the holes in the horizontal direction and the holes in the vertical direction are not closed, and both ends are transparent. .

Embodiment 2

[0038] Such as Figure 4 As shown, the cavity 6 is a two-way hole with one end closed and the other unclosed, that is, holes are respectively opened in the horizontal direction and the vertical direction along the transverse direction of the beam, wherein the holes in the horizontal direction are not closed, and the two ends are transparent. One end of the hole in the vertical direction is closed; it is also possible that the hole in the vertical direction is not closed, and both ends are transparent, and the hole in the horizontal direction is closed at one end.

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Abstract

The invention discloses a prefabricated reinforced concrete hollow web girder and a construction method thereof. The prefabricated reinforced concrete hollow web girder comprises solid sections and hollow web sections, wherein the solid sections and the hollow web sections are arranged in the longitudinal direction of the girder in a sectionalized mode, and a cavity is formed in reinforced concrete of each hollow web section. Each cavity comprises holes which are horizontally and / or vertically formed in the transverse direction of the girder, and one end of each hole is closed or not closed. After the prefabricated reinforced concrete hollow web girder is constructed and installed, embedded parts and / or casing pipes are distributed in the cavities of the hollow web sections, concrete is poured into the cavities on site according to design requirements, and an assembly integral type reinforced concrete girder is formed. Penetrating of special water heating and electrical pipelines in the girder and distribution of the embedded parts in the girder are facilitated, on-site construction is facilitated, and requirements under different design and construction circumstances can be met. The prefabricated reinforced concrete hollow web girder can be used as a primary prefabricated member or can be used for secondary combination to form a large prefabricated member.

Description

technical field [0001] The invention relates to a construction engineering prefabricated beam, in particular to a reinforced concrete prefabricated hollow beam and a construction method thereof. Background technique [0002] At present, the prefabricated solid reinforced concrete beam members used have at least the following problems exposed during the prefabricated construction process: [0003] First, it is difficult for plumbing and electrical professional pipelines to pass through solid prefabricated parts. Even if holes or sleeves are reserved in beam components in advance during the design and component processing stages, it will place quite high requirements on the professional organization and construction accuracy of pipelines passing through beams. The current construction It is difficult to meet the conditional restrictions, and it is not convenient to adjust the pipe layout with project changes; second, the embedded parts in the beams have been fixed during prefa...

Claims

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Application Information

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