Steel reinforced concrete combined hollow floor and construction method thereof

A hollow floor, steel-concrete technology, used in floors, building components, buildings, etc., can solve problems such as poor anti-corrosion and fire resistance, poor concrete tensile capacity, and difficulty in pouring concrete, and achieves the ability to avoid fire and corrosion. The effect of good performance and fast construction speed

Inactive Publication Date: 2012-04-25
郎佃富
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The middle beam of the building is made of concrete, which has the disadvantages of large volume, heavy weight, and small space span, and is only suitable for floors with regular shapes on the plane, and its versatility is poor
The application of the T-beam floor partially solves the above technical problems, but the lower end of the T-beam is limited by its structure, and it is difficult to pour concrete due to insufficient occlusal force. It is exposed to the outside and is

Method used

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  • Steel reinforced concrete combined hollow floor and construction method thereof
  • Steel reinforced concrete combined hollow floor and construction method thereof
  • Steel reinforced concrete combined hollow floor and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] like figure 1 As shown in -3, the steel-concrete composite hollow floor includes multi-directional steel beams and upper and lower layers of post-cast reinforced concrete. There are several tooth wings 2 staggered to the left and right sides of the web 1; the web 1 is provided with lightening holes 3 and stiffeners 8; the tooth wings 2 on the upper and lower long sides of the web 1 are respectively embedded with The upper post-cast reinforced concrete 4 of the upper layer of steel bars 6, and the lower post-cast reinforced concrete 5 with the lower layer of reinforced bars 7.

[0037] In this embodiment, the cross section of the web 1 is rectangular; the steel beam is a cut I-shaped steel, the upper and lower long sides of the I-shaped steel are cut to form tooth wings, and the middle part of the I-shaped steel is a web. The tooth wings are one or more of rectangle, zigzag, arc, triangle, circle, ellipse or trapezoid.

[0038] The steel-concrete combined hollow floor ...

Embodiment 2

[0049] like Figure 4 As shown, the steel-concrete composite hollow floor, the steel beam includes a web 1 whose cross section is a circular arc segment curve, and the tooth wing 2 is a web cut formed by shearing the upper and lower edges of the web 1; the rest is the same as in Example 1 .

Embodiment 3

[0051] like Figure 5 As shown, the steel-concrete composite hollow floor, the steel beam includes a rectangular web 1 whose cross section is composed of "П" line segments, and the tooth wings 2 are connected by bolts or welded to the upper and lower ends of the web 1; the rest are the same as in Example 1 .

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Abstract

The invention relates to a building hollow floor, in particular to a steel reinforced concrete combined hollow floor and construction method thereof, which aims at overcoming the weaknesses of the prior art and providing a steel reinforced concrete combined hollow floor capable of adequately playing the advantages of the steel beam and the concrete and also solving the weaknesses of the steel beam and the concrete. The invention adopts the technical scheme that: the steel reinforced concrete combined hollow floor comprises a steel beam, an upper layer of post-cast steel reinforced concrete and a lower layer of post-cast steel reinforced concrete, wherein the steel beam comprises a web plate, and the upper long edge and the lower long edge of the web plate are respectively provided with a plurality of wing teeth which are alternatively inclined towards the left side and the right side of the web plate; and the wing teeth of the upper and the lower long edges of the web plate are respectively embedded into the upper and the lower layers of post-cast steel reinforced concrete. The steel reinforced concrete combined hollow floor has beneficial effects that: the weight is reduced, good bearing capacity is kept, the structural performance is better, and the integrity is stronger; the consumption of the steel reinforced bar is less, and the cost is reduced; and the steel beam component is wrapped by the concrete, so the problem that the steel beam component is inflammable and is easy to corrode can be effectively solved.

Description

technical field [0001] The invention relates to a building hollow floor, in particular to a steel-concrete composite hollow floor. Background technique [0002] At present, in the construction industry, there are mainly the following ways to form the floor: 1. On-site pouring. First use steel formwork or wood formwork to form the formwork, and then pour concrete to form. The floor built by this method has good integrity and continuity, convenient construction, and high seismic performance, but the floor is heavy and the space span is small. 2. Assembled floor slab, that is, the floor is built with prefabricated hollow floor slab. The use of prefabricated concrete hollow floor slabs can greatly reduce the weight of the floor. However, the floors built with precast concrete hollow slabs and other assembled floors have poor overall performance, especially cracks are prone to occur along the joints of the hollow slabs. Moreover, the load-bearing capacity and earthquake resis...

Claims

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Application Information

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IPC IPC(8): E04B5/29E04C3/06E04C3/08E04C3/07E04C3/09E04G21/00
Inventor 郎佃富
Owner 郎佃富
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