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A steel and recycled concrete composite beam slab and its assembly method

A technology of recycled concrete and composite beams and slabs, applied in floors, buildings, building components, etc., can solve problems such as unreliable connections, reduced bearing capacity of components, insufficient rigidity, etc., and achieve the goals of avoiding cracking under tension, reliable connections, and light weight Effect

Active Publication Date: 2022-04-29
XIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When traditional concrete beams and steel-steel concrete beams are damaged, most of them show cracks in the lower part of the beams, resulting in a reduction in the bearing capacity of the components; traditional steel beams are unstable to varying degrees due to insufficient rigidity and excessive loads; in addition, the beams and floors are separated. , resulting in unreliable connection, and the designed beam section size is large; the solid concrete floor is too heavy, and the material is wasteful; the laying of pipelines is a more troublesome problem during the second decoration, etc.

Method used

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  • A steel and recycled concrete composite beam slab and its assembly method
  • A steel and recycled concrete composite beam slab and its assembly method
  • A steel and recycled concrete composite beam slab and its assembly method

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Embodiment Construction

[0034] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] A steel and recycled concrete composite beam slab of the present invention, such as figure 1 and figure 2 As shown, it includes two rigid beams, and a concrete rigid plate is connected between the two rigid beams; each rigid beam includes a box-shaped steel 1 with a rectangular cross-section, and side plates a3 are welded above the opposite sides of the box-shaped steel 1 along the length direction , the two side plates a3 and the upper bottom surface of the box-shaped steel 1 form a groove, the upper beam is fixedly connected in the groove, and the concrete rigid plate is fixedly connected between the two upper beams.

[0036] Such as image 3 and Figure 4 As shown, each upper beam includes an I-beam 5 with a wide top and a narrow bottom. A plurality of stirrups 8 are socketed at equal intervals outside the I-beam 5 . Both sides ...

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Abstract

The invention discloses a novel steel and recycled concrete composite beam slab, which comprises two rigid beams, and a concrete rigid slab is connected between the two rigid beams; each rigid beam comprises a box-shaped steel with a rectangular section, and the box-shaped steel is The side plate a is welded on the opposite side of the direction, the two side plates a form a groove with the upper bottom of the box steel, the upper beam is fixedly connected in the groove, and the concrete rigid plate is fixedly connected between the two upper beams; the steel and the concrete beam Combination, giving full play to the mechanical properties of concrete in compression and steel in tension, avoiding the cracking of the lower part of the beam and making it have good ductility; the combination of beam and steel frame in the slab makes the connection between the beam and the concrete rigid slab reliable and achieves common work The purpose; the hollow cold-formed thin-walled box-shaped steel pipe is used in the concrete rigid slab to reduce the self-weight of the overall structure and can be used as a large-span floor structure; the box-shaped steel in the beam is used as a hollow channel, which can be used to set up pipelines.

Description

technical field [0001] The invention belongs to the technical field of building structures, and in particular relates to a steel and recycled concrete composite beam slab, and also relates to an assembly method for a steel and recycled concrete composite beam slab. Background technique [0002] The composite structure of steel and concrete has developed rapidly in China in recent years, and its structural forms are various, which are widely used in various projects. However, there are also many problems in the structure. When traditional concrete beams and steel-steel concrete beams are damaged, most of them show cracks in the lower part of the beams, resulting in a reduction in the bearing capacity of the components; traditional steel beams are unstable to varying degrees due to insufficient rigidity and excessive loads; in addition, the beams and floors are separated. , resulting in unreliable connection, and the designed beam section size is large; the solid concrete flo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B5/48
CPCE04B5/48
Inventor 马辉刘方达白恒宇张国恒刘喜洋强佳琪
Owner XIAN UNIV OF TECH
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