CN213115148U - Light superimposed sheet - Google Patents
Light superimposed sheet Download PDFInfo
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- CN213115148U CN213115148U CN202021369190.1U CN202021369190U CN213115148U CN 213115148 U CN213115148 U CN 213115148U CN 202021369190 U CN202021369190 U CN 202021369190U CN 213115148 U CN213115148 U CN 213115148U
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Abstract
The utility model discloses a light composite slab, which comprises a prefabricated autoclaved aerated concrete bottom slab layer, wherein a cast-in-place concrete layer is arranged above the prefabricated autoclaved aerated concrete bottom slab layer; a prefabricated steel bar truss is arranged in the prefabricated autoclaved aerated concrete bottom plate layer, the upper part of the prefabricated steel bar truss is exposed out of the upper surface of the prefabricated autoclaved aerated concrete bottom plate layer, and support steel bar meshes positioned on the outer side of the prefabricated autoclaved aerated concrete bottom plate are arranged at two ends of the prefabricated steel bar truss; and a plate surface reinforcing mesh fixed at the top of the prefabricated steel bar truss is arranged in the cast-in-place concrete layer. The utility model discloses evaporate by prefabricated formula and press aerated concrete bottom plate and cast in situ concrete to through mutually supporting between prefabricated steel bar truss, face reinforcing bar net and the slab bottom reinforcing bar net, set up support reinforcing bar net at the steel bar truss tip, reinforce steel bar truss end node, under the prerequisite of guaranteeing superimposed sheet structural strength, can effectually alleviate superimposed sheet's dead weight, and then improve installation and conveying efficiency.
Description
Technical Field
The utility model relates to a superimposed sheet, especially a light superimposed sheet.
Background
In recent years, the assembled building in China is developed rapidly and is widely applied. The reinforced concrete composite floor slab is an assembled integral floor slab formed by laminating a layer of cast-in-place concrete on a concrete floor slab prefabricated in a factory. Compared with a cast-in-place floor slab, the laminated slab realizes the industrial production of partial components, can reduce the field construction operation, saves energy, protects the environment and shortens the construction period; compared with an assembly type floor, due to the existence of the cast-in-place superposed layer, the floor has better integrity and greatly improved earthquake resistance; so that the laminated slab is widely used in the prefabricated building. But traditional reinforced concrete coincide floor also has its not enough, because the prefabricated part is the concrete solid slab, leads to the superimposed sheet dead weight great, and installation and conveying efficiency are all lower. Therefore, the prior art has the problems of large self weight and low installation and transportation efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a light superimposed sheet. The utility model has the characteristics of can effectively alleviate the dead weight and improve installation and conveying efficiency.
The technical scheme of the utility model: a light composite slab comprises a prefabricated autoclaved aerated concrete bottom slab layer, wherein a cast-in-place concrete layer is arranged above the prefabricated autoclaved aerated concrete bottom slab layer; a prefabricated steel bar truss is arranged in the prefabricated autoclaved aerated concrete bottom plate layer, the upper part of the prefabricated steel bar truss is exposed out of the upper surface of the prefabricated autoclaved aerated concrete bottom plate layer, and two ends of the prefabricated steel bar truss are provided with support steel bar meshes positioned on the outer side of the prefabricated autoclaved aerated concrete bottom plate layer; and a plate surface reinforcing mesh fixed at the top of the prefabricated steel bar truss is arranged in the cast-in-place concrete layer.
In the light composite slab, the prefabricated steel bar truss comprises web member steel bars, and upper and lower ends of the web member steel bars are respectively provided with upper chord steel bars and lower chord steel bars; the web member steel bars are also provided with a plate bottom steel bar mesh; and two ends of the upper chord steel bar and the lower chord steel bar extend out of the side wall of the prefabricated autoclaved aerated concrete floor layer.
In the light composite slab, the extension lengths of the upper chord steel bar and the lower chord steel bar are both 150 mm.
In the light composite slab, the slab bottom reinforcing mesh comprises slab bottom additional longitudinal stressed steel bars fixed on the lower chord steel bars, and the slab bottom additional longitudinal stressed steel bars are connected with slab bottom transverse distribution steel bars.
In the light composite slab, the support reinforcing mesh comprises support horizontal reinforcing steel bars fixed on the lower chord reinforcing steel bars, and support vertical reinforcing steel bars are arranged between the support horizontal reinforcing steel bars and the upper chord reinforcing steel bars.
In the light composite slab, the plate reinforcing mesh comprises plate additional reinforcing steel bars fixed on the upper chord reinforcing steel bars, and the plate additional reinforcing steel bars are connected with plate transverse distribution ribs.
Compared with the prior art, the utility model discloses evaporate and press aerated concrete bottom plate and cast in situ concrete by prefabricated formula and constitute to mutually support through between prefabricated steel bar truss, face reinforcing bar net and the bottom of the slab reinforcing bar net, set up support reinforcing bar net at the steel bar truss tip, reinforce steel bar truss tip node, under the prerequisite of guaranteeing superimposed sheet structural strength, can effectually alleviate superimposed sheet's dead weight, and then improve installation and conveying efficiency. Meanwhile, the prefabricated autoclaved aerated concrete bottom plate has light self weight and can be used as a template; the lower chord steel bar can fully exert the characteristic of high tensile strength of the steel according to the stress characteristic. Meanwhile, the contraction cracks of the floor surface can be effectively prevented by arranging the plate surface reinforcing mesh of the transverse distribution ribs on the upper chord reinforcing steel bars. The utility model discloses a light superimposed sheet adopts the design of one-way board, nevertheless can be according to mechanical properties full play material strength, and its economic nature index is not inferior to two-way board, and can simplify the construction process, improves the efficiency of construction. To sum up, the utility model has the characteristics of can effectively alleviate the dead weight and improve installation and conveying efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The labels in the figures are: 1-prefabricated autoclaved aerated concrete floor layer, 2-cast-in-place concrete layer, 3-prefabricated steel bar truss, 4-support steel bar mesh, 5-plate surface steel bar mesh, 6-plate bottom steel bar mesh, 301-web member steel bar, 302-upper chord steel bar, 303-lower chord steel bar, 601-plate bottom additional longitudinal stress steel bar, 602-plate bottom transverse distribution steel bar, 401-support horizontal steel bar, 402-support vertical steel bar, 501-plate surface additional steel bar and 502-plate surface transverse distribution steel bar.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
Examples are given. A light composite slab is shown in figure 1 and comprises a prefabricated autoclaved aerated concrete bottom plate layer 1, wherein a cast-in-place concrete layer 2 is arranged above the prefabricated autoclaved aerated concrete bottom plate layer 1; a prefabricated steel bar truss 3 is arranged in the prefabricated autoclaved aerated concrete bottom plate layer 1, the upper part of the prefabricated steel bar truss 3 is exposed out of the upper surface of the prefabricated autoclaved aerated concrete bottom plate layer 1, and two ends of the prefabricated steel bar truss 3 are provided with support steel bar meshes 4 positioned on the outer side of the prefabricated autoclaved aerated concrete bottom plate layer 1; and a plate face reinforcing mesh 5 fixed at the top of the prefabricated steel bar truss 3 is arranged in the cast-in-place concrete layer 2.
In the light composite slab, the prefabricated steel bar truss 3 comprises web member steel bars 301, and upper and lower ends of the web member steel bars 301 are respectively provided with upper chord steel bars 302 and lower chord steel bars 303; the web member reinforcing steel bars 301 are also provided with a plate bottom reinforcing mesh 6; and two ends of the upper chord steel bar 302 and the lower chord steel bar 303 extend out of the side wall of the prefabricated autoclaved aerated concrete floor layer 1.
In the light composite slab, the upper chord steel bar 302 and the lower chord steel bar 303 both extend 150 mm.
In the light composite slab, the bottom reinforcing mesh 6 includes bottom additional longitudinal stress steel bars 601 fixed on the bottom chord steel bars 303, and bottom transverse distribution steel bars 602 are connected to the bottom additional longitudinal stress steel bars 601.
In the light composite slab, the support reinforcing mesh 4 comprises a support horizontal reinforcing bar 401 fixed to the lower chord reinforcing bar 303, and a support vertical reinforcing bar 402 is arranged between the support horizontal reinforcing bar 401 and the upper chord reinforcing bar 302.
In the light composite slab, the slab mesh reinforcement 5 includes the slab additional reinforcement 501 fixed on the upper chord reinforcement 302, and the slab additional reinforcement 501 is connected with the slab transverse distribution rib 502.
The support horizontal reinforcing steel bars are fixed at the extending parts of the lower chord reinforcing steel bars, and the support vertical reinforcing steel bars are fixed between the extending parts of the upper chord reinforcing steel bars and the support horizontal reinforcing steel bars.
The prefabricated autoclaved aerated concrete floor layer is made of aerated concrete with light self-weight. The aerated concrete is a light porous concrete product prepared by adding a gas former into conventional raw materials such as sand, fly ash, cement, lime and the like through processes such as autoclaving, curing and the like, and is mature and reliable.
The steel bar truss is formed by welding upper and lower chord steel bars and web member steel bars.
When the support vertical reinforcing steel bars are installed, the support vertical reinforcing steel bars are placed on the upper surface of the superposed beam to transfer construction load, and the support horizontal reinforcing steel bars are used for ensuring the stability of the support vertical reinforcing steel bars; and a plate reinforcing mesh is arranged in the cast-in-place layer and consists of plate additional reinforcing steel bars and plate transverse distribution ribs.
The novel light composite slab is applied as a simply supported floor slab stressed in one direction, the construction method of the novel light composite slab accords with the mechanical principle, and the material strength can be fully exerted. Under the action of plate surface load, the single-way simply-supported floor slab is pulled below the neutral axis and is pressed above the neutral axis. The middle shaft of the light composite slab is composed of an autoclaved aerated concrete bottom plate and a steel bar truss lower chord steel bar below a neutral shaft, and the aerated concrete has light dead weight and can be used as a template; the lower chord steel bar can fully exert the characteristic of high tensile strength of the steel according to the stress characteristic. The laminated slab mainly comprises a cast-in-place concrete laminated layer above a neutral axis, and can give full play to the characteristic of high compressive strength of concrete. The plate reinforcing mesh formed by the upper chord reinforcing steel bars and the transverse distribution reinforcing steel bars can effectively prevent the contraction cracks of the floor surface.
The longitudinal stressed steel bars added at the bottom of the plate and the transverse distributed steel bars at the bottom of the plate are spiral ribbed steel wires or cold-rolled ribbed steel bars.
Claims (6)
1. A light superimposed sheet which characterized in that: the prefabricated autoclaved aerated concrete floor slab comprises a prefabricated autoclaved aerated concrete floor slab layer (1), wherein a cast-in-place concrete layer (2) is arranged above the prefabricated autoclaved aerated concrete floor slab layer (1); a prefabricated steel bar truss (3) is arranged in the prefabricated autoclaved aerated concrete bottom plate layer (1), the upper part of the prefabricated steel bar truss (3) is exposed out of the upper surface of the prefabricated autoclaved aerated concrete bottom plate layer (1), and two ends of the prefabricated steel bar truss (3) are provided with support steel bar meshes (4) positioned on the outer side of the prefabricated autoclaved aerated concrete bottom plate layer (1); and a plate reinforcing mesh (5) fixed at the top of the prefabricated steel bar truss (3) is arranged in the cast-in-place concrete layer (2).
2. A light-weight laminated slab as claimed in claim 1, wherein: the prefabricated steel bar truss (3) comprises web member steel bars (301), and upper and lower ends of the web member steel bars (301) are respectively provided with upper chord steel bars (302) and lower chord steel bars (303); the web member steel bars (301) are also provided with a plate bottom steel bar net (6); and the two ends of the upper chord steel bar (302) and the lower chord steel bar (303) extend out of the side wall of the prefabricated autoclaved aerated concrete floor layer (1).
3. A lightweight composite panel according to claim 2 wherein: the upper chord steel bar (302) and the lower chord steel bar (303) are both 150mm in extension length.
4. A lightweight composite panel according to claim 2 wherein: the plate bottom reinforcing mesh (6) comprises plate bottom additional longitudinal stress reinforcing steel bars (601) fixed on the lower chord reinforcing steel bars (303), and plate bottom transverse distribution reinforcing steel bars (602) are connected to the plate bottom additional longitudinal stress reinforcing steel bars (601).
5. A lightweight composite panel according to claim 2 wherein: the support reinforcing mesh (4) comprises support horizontal reinforcing steel bars (401) fixed on the lower chord reinforcing steel bars (303), and support vertical reinforcing steel bars (402) are arranged between the support horizontal reinforcing steel bars (401) and the upper chord reinforcing steel bars (302).
6. A lightweight composite panel according to claim 2 wherein: the plate reinforcing mesh (5) comprises plate additional reinforcing steel bars (501) fixed on the upper chord reinforcing steel bars (302), and the plate additional reinforcing steel bars (501) are connected with plate transverse distribution ribs (502).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021369190.1U CN213115148U (en) | 2020-07-13 | 2020-07-13 | Light superimposed sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021369190.1U CN213115148U (en) | 2020-07-13 | 2020-07-13 | Light superimposed sheet |
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| Publication Number | Publication Date |
|---|---|
| CN213115148U true CN213115148U (en) | 2021-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021369190.1U Active CN213115148U (en) | 2020-07-13 | 2020-07-13 | Light superimposed sheet |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113967965A (en) * | 2021-10-29 | 2022-01-25 | 广东贵冠绿色建筑科技有限公司 | Preparation method of bidirectional steel bar truss laminated slab |
| CN114277991A (en) * | 2021-10-27 | 2022-04-05 | 广东省建科建筑设计院有限公司 | Superposed hollow floor slab with formwork |
| WO2023245468A1 (en) * | 2022-06-21 | 2023-12-28 | 山东德利森绿能建材科技有限公司 | Cast-in-place floor slab steel bar truss bottom formwork integrated structure and production process |
-
2020
- 2020-07-13 CN CN202021369190.1U patent/CN213115148U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114277991A (en) * | 2021-10-27 | 2022-04-05 | 广东省建科建筑设计院有限公司 | Superposed hollow floor slab with formwork |
| CN113967965A (en) * | 2021-10-29 | 2022-01-25 | 广东贵冠绿色建筑科技有限公司 | Preparation method of bidirectional steel bar truss laminated slab |
| WO2023245468A1 (en) * | 2022-06-21 | 2023-12-28 | 山东德利森绿能建材科技有限公司 | Cast-in-place floor slab steel bar truss bottom formwork integrated structure and production process |
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