Double-steel-plate reinforced concrete composite beam

A technology of reinforced concrete and composite beams, which is applied in the field of composite beams, and can solve problems such as easy web sag, difficult fabrication, and weak rigidity

Pending Publication Date: 2018-08-14
HANGXIAO STEEL STRUCTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of the large amount of concrete and steel bars used in the existing medium-sized steel concrete beams and the difficulty of making them, as well as the weak rigidity of the composite beam combined with the upper flange of the steel beam and the concrete, and the problem that the web is easy to sag. Therefore, a solution of the present invention is provided. A double-steel reinforced concrete composite beam, which saves material, has high compressive and shear strength, and is easy to manufacture and construct.

Method used

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  • Double-steel-plate reinforced concrete composite beam

Examples

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example 1

[0012] A double-steel reinforced concrete composite beam, see figure 1 , 2 , be provided with upper steel plate 1 and lower steel plate 4, be welded with stirrup 301 between upper steel plate 1 and lower steel plate 4, the vertical part of stirrup 301 is perpendicular to upper steel plate 1 and lower steel plate 4, the vertical part of stirrup 301 The outer edge is moved inward by a distance H relative to the line between the side edges of the upper steel plate 1 and the lower steel plate 4, the stirrups 301 are evenly spaced along the length direction of the upper and lower steel plates, and concrete 2 is arranged between the upper steel plate 1 and the lower steel plate 4, so that The stirrup 301 is embedded in the concrete 2 .

[0013] Concrete 2 can be poured together with the upper and lower steel plates at the construction site, or can be poured together with the upper and lower steel plates at the factory to form a whole and transported to the construction site.

[00...

example 2

[0022] In this example, double steel plate reinforced concrete composite beam, see figure 1 , 3 , The difference from the above example is that the stirrups 301 are replaced by pairs of symmetrically arranged arcuate ribs 302, and the other structures are the same as the above example.

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Abstract

The invention discloses a double-steel-plate reinforced concrete composite beam with high strength, low material consumption and convenient machining. The double-steel-plate reinforced concrete composite beam is provided with an upper steel plate and a lower steel plate. Hoop-shaped shear-resistance bars are welded between the upper steel plate and the lower steel plate. The vertical part of the hoop-shaped shear-resistance bars is perpendicular to the upper steel plate and the lower steel plate. The outer edges of the vertical part of the hoop-shaped shear-resistance bars move inwards with adistance being H relative to the connecting lines between the side edges of the upper steel plate and the lower steel plate. The hoop-shaped shear-resistance bars are evenly arranged at intervals in the length direction of the upper steel plate and the lower steel plate. Concrete is arranged between the upper steel plate and the lower steel plate, so that the hoop-shaped shear-resistance bars areburied in the concrete. The double-steel-plate reinforced concrete composite beam can be widely applied to various building structures.

Description

technical field [0001] The invention relates to a composite beam, especially a double-steel reinforced concrete composite beam, which can be widely used in various building structures. Background technique [0002] In the current composite structure system, the beams mainly include pure steel beams, steel concrete beams, and composite beams in which the upper flange of steel beams is combined with concrete. [0003] Pure steel beams are mainly I-shaped, H-shaped and box-shaped, and do not contain any concrete. They have the disadvantages of large steel consumption and weak steel beam rigidity. The concrete of the steel concrete beam is outsourced around the pure steel beam, which has the disadvantages of a large amount of concrete, the need to increase the amount of steel bars, and the difficulty of connecting steel bars and pouring concrete. The composite beam composed of the upper flange of the steel beam and the concrete is to arrange studs on the upper flange of the I-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/20
CPCE04C3/20
Inventor 胡立黎陈勇敢尹卫泽刘晓光
Owner HANGXIAO STEEL STRUCTURE
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