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Concrete prefabricated hollow slab

A technology of concrete and hollow slabs, applied in the direction of floors, building components, structural elements, etc., can solve the problems of dust and rainwater retention, and achieve the effect of increasing friction, reducing the probability of cracks, and ensuring the sealing effect

Active Publication Date: 2021-12-03
中交临沂建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on the technical problem that the existing concrete prefabricated hollow slabs do not close the openings and cause dust and rainwater to stay inside, the present invention proposes a concrete prefabricated hollow slab

Method used

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  • Concrete prefabricated hollow slab
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Embodiment Construction

[0027] Embodiments of the present patent are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are only used for explaining the patent, and should not be construed as limiting the patent.

[0028] In the description of this patent, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this patent and simplifying the description, rather than indicating or implying References to devices or elements must have a particular orientation, be constructed, ...

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Abstract

The invention belongs to the technical field of concrete prefabrication, particularly relates to a concrete prefabricated hollow slab, and aims to solve the problem that dust, rainwater and the like are retained in an existing concrete prefabricated hollow slab due to the fact that open holes are not closed, the concrete prefabricated hollow slab comprises a slab body, and a plurality of first open holes and second open holes are formed in the slab body at equal intervals; and the first opening and the second opening are vertically distributed on the central horizontal plane of the plate body. Second sealing covers are inserted into the two ends of each second opening, and second main rods, memory alloy sleeves, tempered sleeves and rubber sleeves are connected in a sleeving mode layer by layer, so that the two ends of the second openings are sealed, a first sealing cover, a first main rod and a plurality of supporting bodies are arranged in the first opening, and an inlet of the first opening is sealed; and therefore, no air enters the concrete prefabricated hollow slab, rainwater, dust, damp air and the like are effectively prevented from entering the concrete prefabricated hollow slab, and the crack probability of the concrete prefabricated hollow slab is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of concrete prefabrication, in particular to a concrete prefabricated hollow slab. Background technique [0002] The hollow slab is made of concrete pouring, and the cross section of the slab is made hollow. The hollow slab is lighter than the solid slab with the same span, convenient for transportation and installation, and the building height is smaller than the T-beam with the same span, and the concrete prefabricated hollow The slab is a concrete prefabricated part produced and processed in the prefabrication yard, which is directly transported to the construction site for installation, saving time and effort. [0003] The hollow-core floor technology derived from the hollow-core slab can be widely applied to buildings with large spans, large spaces, and heavy loads. Compared with traditional technologies, it can save concrete and reduce overall cost. It is mainly suitable for schools, bridges, and readi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B5/02E04C2/06E04C2/30E04B1/66E04C5/04
CPCE04B5/02E04C2/06E04C2/30E04C2/50E04B1/66E04C5/04
Inventor 廖福琴
Owner 中交临沂建筑科技有限公司
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