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Support-free prefabricated floor slab with brackets

A floor slab and corbel technology, applied in the field of prefabricated building structural components, can solve the problems of increasing construction costs, affecting construction efficiency, limiting construction space, etc., and achieves the effects of convenient installation, improving construction efficiency, and shortening the construction period

Inactive Publication Date: 2021-06-25
CHINA CONSTR FIFTH ENG DIV CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of urban buildings, prefabricated buildings have gradually become a new trend in the development of the construction industry due to their advantages of less labor costs, less on-site wet operations, energy saving and environmental protection, and short construction periods; as one of the important components of the structure, floor slabs are currently Composite floors have been widely used in prefabricated buildings; compared with traditional cast-in-place slabs, composite floors reduce the amount of on-site wet work and formwork work. Before the composite floor is hoisted, it is necessary to pre- Set up a large number of supports or even full-supported scaffolding to transfer the self-weight and construction load of the prefabricated floor slab; setting up a large number of supports on the construction site not only limits the construction space, increases the construction cost, but also seriously affects the construction efficiency

Method used

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  • Support-free prefabricated floor slab with brackets
  • Support-free prefabricated floor slab with brackets
  • Support-free prefabricated floor slab with brackets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] refer to figure 1 , the support-free precast floor with corbels is a fully precast floor, including a concrete fully precast floor body 1 and several corbels 2, the concrete fully precast floor body 1 here means the concrete floor without corbels 2, and its pouring operation is The construction work of the prefabricated building is completed in advance, and the corbel 2 is buried during the pouring operation, and the corbel 2 is prefabricated before the pouring construction operation of the fully prefabricated concrete floor slab body 1 . Both the corbel 2 and the prefabricated floor slab are prepared using standardized modular operations, which greatly reduces the amount of wet work and formwork work on site.

[0049] see figure 2 , in the span direction of concrete full prefabricated floor slab body 1 ( figure 1 Two sets of corbels 2 are set on the two side walls, each group contains two corbels 2, and each group can contain more than three corbels 2 based on actua...

Embodiment 2

[0065] refer to Figure 7 The difference between this embodiment and Embodiment 1 is that the bottom surface of the vertical steel plate 211 extends downwards from a section of the concrete prefabricated floor body 1, and the upper surface of the horizontal steel plate 212 is higher than the lower surface of the vertical steel plate 211. surface. The shear member 22 is screwed to the vertical steel plate 211 through the through hole. The two side walls of the fully prefabricated concrete floor slab body 1 abut against the side walls of the structural beams or the wall body 3, so that the airtightness is better, and the cement leakage is prevented when pouring the cement. The shear member 22 can adopt a rectangular column. Correspondingly, rectangular through holes are processed on the vertical steel plate 211. This solution can prevent the shear member 22 from rotating relative to the vertical steel plate 211 during the pouring of cement, and the combination between the rect...

Embodiment 3

[0068] refer to Figure 9 , The difference between this embodiment and Embodiment 1 is that the angle between the shear member 22 and the vertical steel plate is 60°.

[0069] The shearing member 22 is welded to one side of the vertical steel plate 211 , and the shearing member 22 gradually inclines horizontally toward the direction of the horizontal steel plate 212 away from the vertical steel plate 211 . The shear member 22 is arranged obliquely, that is, the direction in which the shear member 22 separates from the vertical steel plate 211 is at an acute angle greater than 45°. The shear member 22 is symmetrical on both sides of the vertical steel plate 211. The side bears the same force to avoid uneven force from affecting the shear performance. The number of shear members 22 is reasonably set according to needs, and the cost is saved while fixing the vertical steel plate 211 . The structure enclosed by any adjacent shear members 22 and the vertical steel plates 211 betw...

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Abstract

The invention relates to a support-free prefabricated floor slab with brackets, and belongs to the field of building structural members. According to the scheme, the support-free prefabricated floor slab is composed of a prefabricated concrete floor slab and a plurality of steel brackets, wherein the plurality of steel brackets are locally embedded in the side wall of the floor slab in the span direction; the steel brackets are composed of vertical steel plates, horizontal steel plates and a plurality of shear resistant pieces; and the parts, which are embedded in the floor slab, of the vertical steel plates and the shear resistant pieces form a fishbone structure, and the bottoms of the parts, which extend out of the floor slab, of the vertical steel plates are connected with the horizontal steel plates. According to the support-free prefabricated floor slab, the steel brackets are arranged on both sides of the concrete prefabricated floor slab, the steel brackets are supported on structural beams or walls through the horizontal steel plates of the steel brackets in the construction process of the floor slab, and the connecting performance of the steel brackets and concrete is improved through the fishbone structure anchored in the floor slab, so that load in the construction stage and the dead weight of the floor slab are transmitted to structural members such as beams and walls through the steel brackets, and the purpose that the lower part of the prefabricated floor slab is free of supporting is achieved. No support needs to be arranged below the floor slab, so that the construction efficiency is improved, and the construction cost is reduced; and the members have the advantages of the simple structure, easiness in production and convenience in installation.

Description

technical field [0001] The present application relates to the technical field of prefabricated building structural components, in particular to a support-free prefabricated floor with corbels. Background technique [0002] With the continuous development of urban buildings, prefabricated buildings have gradually become a new trend in the development of the construction industry due to their advantages of less labor costs, less on-site wet operations, energy saving and environmental protection, and short construction periods; as one of the important components of the structure, floor slabs are currently Composite floors have been widely used in prefabricated buildings; compared with traditional cast-in-place slabs, composite floors reduce the amount of on-site wet work and formwork work. Before the composite floor is hoisted, it is necessary to pre- Set up a large number of supports or even full-supported scaffolding to transfer the self-weight and construction load of the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B5/02E04B5/10E04C5/01
CPCE04B5/02E04B5/023E04B5/10E04C5/01
Inventor 周泉姚延化李水生唐宇轩
Owner CHINA CONSTR FIFTH ENG DIV CORP LTD
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