Hollow concrete board
A technology of concrete hollow slab and cavity, applied in the direction of floor slab, formwork/formwork/work frame, structural elements, etc., can solve the problems such as inability to pass cast-in-place concrete, waste of concrete materials, and unsuitable for large-span pouring.
Inactive Publication Date: 2010-07-14
湖南邱则有专利战略策划有限公司
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Problems solved by technology
Usually the length of the side plate of this prefabricated component is the same as the length of the bottom plate. When this prefabricated component is assembled to form a lightweight slab bearing two-way loads, the cast-in-place concrete cannot pass through the side plate, and cannot form a connected crossing with the side plate. Cast-in-place concrete ribs, at the same time, in the direction perpendicular to the side plate, various pipeline layouts need to be drilled and threaded on site, which not only wastes concrete materials, but also wastes man-hours. Moreover, after cast-in-place concrete, the assembled lightweight panels are solid. Concrete consumes a lot of material, and the lightweight slab is heavy, which is not suitable for large-span pouring. Therefore, it is urgent to develop a new type of concrete hollow slab.
Method used
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[0046] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0047] As shown in the accompanying drawings, the present invention includes cast-in-place reinforced concrete 20, cavity members 21 for filling, the cavity members 21 for filling are arranged alternately and wrapped in the cast-in-place reinforced concrete 20, and the cavity members 21 for filling are mutually arranged. There are cast-in-place concrete ribs 22 between them, and the cavity member 21 for filling includes a reinforced concrete bottom plate 1 and at least two reinforced concrete side plates 2. At least two closed overhead boxes 3 are filled in the elongated groove of the elongated groove plate member, and there is at least one longitudinally long prestressed steel bar 4 in the base plate 1 at the bottom of the side plate 2, and the side plate 2 There is at least one longitudinally long prestressed steel bar 4 at the top, closed overhead bo...
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A hollow reinforced concrete comprises concrete cast in site, hollow components as fillers spaced each other and contained in the former, and some ribs are cast in site between the said fillers. Some closed over-linked boxes, at least two, are put downward in long channels to be separated each other with narrow spaces, which are filled with concrete cast in site. At least one pre-stressed steel bar from one end to the other is respectively arranged the upper and lower portions of the side walls. At least one internal rib cavity is connected with some holes on the side walls. Two longitudinal edges are formed on the substrate. The concrete can be used as roof.
Description
(1) Technical field [0001] The invention relates to a concrete hollow slab. (2) Background technology [0002] Ribbed reinforced concrete prefabricated components are used to assemble lightweight slabs, which can bear two-way loads, do not need on-site formwork, and are low in cost, easy to hoist and transport. This ribbed prefabricated component includes a strip-shaped bottom plate and a long strip-shaped side plate, and the side plate and the bottom plate are connected as a whole to form a T-shaped or long-strip trough-shaped component. Usually the length of the side slab of this prefabricated component is the same as the length of the bottom slab. When this prefabricated component is assembled to form a lightweight slab that bears two-way loads, the cast-in-place concrete cannot pass through the side slab and cannot form a connected intersecting slab with the side slab. In-situ concrete ribs, at the same time, in the direction perpendicular to the side plate, various pip...
Claims
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IPC IPC(8): E04B5/36E04G15/06E04C5/01
Inventor 邱则有
Owner 湖南邱则有专利战略策划有限公司