CN112171884A - Prefabricated ribbed concrete composite slab and preparation method thereof - Google Patents
Prefabricated ribbed concrete composite slab and preparation method thereof Download PDFInfo
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- CN112171884A CN112171884A CN202010911589.6A CN202010911589A CN112171884A CN 112171884 A CN112171884 A CN 112171884A CN 202010911589 A CN202010911589 A CN 202010911589A CN 112171884 A CN112171884 A CN 112171884A
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- Prior art keywords
- concrete
- bottom plate
- mold
- slab
- ribs
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
Abstract
The invention relates to a preparation method of a prefabricated ribbed concrete composite slab, which comprises the following steps: s1, pouring small concrete blocks in advance; s2, pouring truss concrete in advance; and S3, casting and forming the laminated slab. The invention also relates to a prefabricated ribbed concrete composite slab prepared by the preparation method. The invention has no ribs on four sides, thus reducing the difficulty of site construction; the mould does not need to be provided with holes, so that the repeated utilization rate of the mould is increased, and the cost is reduced; the upper chord ribs and the web member ribs are poured and hardened in advance, after the concrete of the bottom plate is poured, the upper chord ribs and the web member ribs are inserted into the bottom plate, and the reinforcing steel bars in the web members are anchored in the bottom plate, so that the production difficulty is effectively reduced, and the production efficiency is improved; the bending resistance of the bottom plate is effectively increased by the upper chord ribs and the web member ribs, and favorable conditions are created for support-free; in the field construction process, when the beam is a prefabricated beam, the support is completely avoided, when the beam is a cast-in-place beam, the beam only needs to be supported at the end part, and the middle part does not need to be supported, so that the difficulty and the cost of the construction field are reduced; prefabricating 50mm and casting 70mm in situ, reducing plate thickness, increasing building clear height, reducing structural load and reducing total concrete quantity.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a prefabricated ribbed concrete composite slab and a preparation method thereof.
Background
With the rapid development of modern building industry, more and more large buildings are built, and how to scientifically and reasonably apply reinforced concrete as a main material of modern buildings becomes the key point of research in the building industry at present. The prefabricated reinforced concrete composite slab is an irreplaceable part in modern buildings, but the existing most of prefabricated reinforced concrete composite slabs have the defects of high field construction difficulty, low factory production efficiency and thick floor slab thickness. Therefore, a prefabricated ribbed concrete composite slab and a preparation method thereof are needed.
Disclosure of Invention
The invention aims to provide a prefabricated ribbed concrete composite slab and a preparation method thereof, aiming at the defects in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a preparation method of a prefabricated ribbed concrete composite slab, which comprises the following steps:
s1, pouring small concrete blocks in advance;
s2, pouring truss concrete in advance: placing a truss concrete mold on the mold table; placing a certain number of small concrete blocks which are poured and formed on the truss concrete mould, wherein every two small concrete blocks are separated by a certain distance; pouring concrete in the truss concrete mold;
s3, pouring and forming the laminated slab: placing a laminated plate mold on the table top of the other mold and assembling the laminated plate mold; placing a steel bar mesh in the laminated slab die; binding a certain number of lifting rings on the steel bar mesh, and placing the poured steel truss concrete; and pouring concrete in the laminated slab mold to obtain the prefabricated ribbed concrete laminated slab.
When the bottom plate is produced and constructed, a component is poured by adopting a steel bar mesh instead of manual binding; and no rib is formed on four sides, if the rib is required to be formed, a first-level steel is additionally added, and the die does not need to be perforated during production.
Preferably, the number of the small concrete blocks placed on the truss concrete mould is 4-10.
Further preferably, the number of the small concrete blocks placed on the truss concrete mold is 7.
Preferably, the space between the small concrete blocks placed on the truss concrete mould is 300-600 mm.
Preferably, the small concrete blocks are placed on the truss concrete mould at equal intervals.
Preferably, the number of the hoisting rings bound on the reinforcing mesh sheet is 2-6.
Further preferably, the number of the hoisting rings bound on the reinforcing mesh sheet is 4.
Preferably, the number of the steel truss concretes placed on the steel mesh sheets is 2-6.
Further preferably, the number of the steel truss concretes placed on the steel mesh sheets is 4.
A second aspect of the present invention provides a prefabricated ribbed concrete composite slab obtained by the above preparation method, comprising: the lifting device comprises a bottom plate, a plurality of upper chord ribs vertical to the bottom plate and a plurality of lifting rings fixed on the upper surface of the bottom plate; the upper chord rib comprises a plurality of web member ribs arranged between the bottom plate and the upper chord rib, and a plurality of rectangular holes are formed among the web member ribs.
Preferably, the distance between the lower surface of the bottom plate and the upper surface of the upper chord rib is the thickness of the floor slab.
Preferably, the prefabricated thickness of the laminated slab is 50mm, the cast-in-place thickness is 70mm, and the thickness of the laminated slab is reduced by 10mm compared with that of the prefabricated slab with most of the existing prefabricated slabs with the thickness of 60mm and the cast-in-place thickness of 70 mm.
Preferably, the joint of the superimposed sheet adopts a close splicing seam, and a site formwork is not required.
By adopting the technical scheme, compared with the prior art, the invention has the following technical effects:
the invention has no ribs on four sides, thus reducing the difficulty of site construction; the mould does not need to be provided with holes, so that the repeated utilization rate of the mould is increased, and the cost is reduced; the upper chord ribs and the web member ribs are poured and hardened in advance, after the concrete of the bottom plate is poured, the upper chord ribs and the web member ribs are inserted into the bottom plate, and the reinforcing steel bars in the web members are anchored in the bottom plate, so that the production difficulty is effectively reduced, and the production efficiency is improved; the bending resistance of the bottom plate is effectively increased by the upper chord ribs and the web member ribs, and favorable conditions are created for support-free; in the field construction process, when the beam is a prefabricated beam, the support is completely avoided, when the beam is a cast-in-place beam, the beam only needs to be supported at the end part, and the middle part does not need to be supported, so that the difficulty and the cost of the construction field are reduced; prefabricating 50mm and casting 70mm in situ, reducing plate thickness, increasing building clear height, reducing structural load and reducing total concrete quantity.
Drawings
FIG. 1 is a schematic view showing the production process of S2 in the method for manufacturing a prefabricated ribbed concrete composite slab according to the present invention;
FIG. 2 is a schematic view showing a production process S3 in the method for manufacturing a prefabricated ribbed concrete composite slab according to the present invention;
FIG. 3 is a schematic view showing a production process S3 in the method for manufacturing a prefabricated ribbed concrete composite slab according to the present invention;
FIG. 4 is a schematic structural diagram of a prefabricated ribbed concrete composite slab according to the present invention;
fig. 5 is a schematic view of the construction site installation of a prefabricated ribbed concrete composite slab according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
Example 1
The embodiment provides a preparation method of a prefabricated ribbed concrete composite slab, which comprises the following steps:
s1, pouring small concrete blocks in advance;
s2, pouring truss concrete in advance: as shown in fig. 1, a truss concrete mold is placed on the mold table; placing a certain number of small concrete blocks which are poured and formed on the truss concrete mould, wherein every two small concrete blocks are separated by a certain distance; pouring concrete in the truss concrete mold;
s3, pouring and forming the laminated slab: as shown in fig. 2 and 3, a laminated plate mold is placed on the other mold table and assembled; placing a steel bar mesh in the laminated slab die; binding a certain number of lifting rings on the steel bar mesh, and placing the poured steel truss concrete; and pouring concrete in the laminated slab mold to obtain the prefabricated ribbed concrete laminated slab.
When the bottom plate is produced and constructed, a component is poured by adopting a steel bar mesh instead of manual binding; and no rib is formed on four sides, if the rib is required to be formed, a first-level steel is additionally added, and the die does not need to be perforated during production.
Preferably, the number of the small concrete blocks placed on the truss concrete mould is 7, the distance between the small concrete blocks is 300-600 mm, and the distance between every two small concrete blocks is equal; the number of the hoisting rings bound on the steel bar mesh sheets is 4, and the number of the steel truss concretes placed on the steel bar mesh sheets is 4.
Example 2
As shown in fig. 4, the present embodiment provides a prefabricated ribbed concrete composite slab, including: the device comprises a bottom plate 1, a plurality of upper chord ribs 2 vertical to the bottom plate 1 and a plurality of hanging rings 4 fixed on the upper surface of the bottom plate 1; the upper chord rib 2 comprises a plurality of web members 3 arranged between the bottom plate 1 and the upper chord rib 2, and a plurality of rectangular holes are formed between the web members 3.
Preferably, when the bottom plate 1 is produced and constructed, a steel mesh casting component is adopted instead of manual binding; and no rib is formed on four sides, if the rib is required to be formed, a first-level steel is additionally added, and the die does not need to be perforated during production.
Preferably, the number of said upper chord ribs 2 is 4.
Preferably, the number of web ribs 3 provided between the base plate 1 and a single upper chord rib 2 is 7.
Preferably, the distance between the two web member ribs 3 is 300-600 mm.
Preferably, the number of said suspension rings 4 is 4.
Preferably, the distance between the lower surface of the bottom plate 1 and the upper surface of the upper chord rib 2 is the thickness of the floor slab.
Preferably, the prefabricated thickness of the laminated slab is 50mm, the cast-in-place thickness is 70mm, and the thickness of the laminated slab is reduced by 10mm compared with that of the prefabricated slab with most of the existing prefabricated slabs with the thickness of 60mm and the cast-in-place thickness of 70 mm.
Preferably, the joint of the superimposed sheet adopts a close splicing seam, and a site formwork is not required.
As shown in fig. 5, when the cast-in-place beam is installed in a construction site, only the end portions need to be supported, and the middle portion does not need to be supported if the two ends are cast-in-place beams; if the two ends are precast beams, the two ends and the middle part do not need to be supported; the pipeline passes through the gap between the rib and the bottom plate.
In conclusion, no ribs are formed on four sides, so that the field construction difficulty is reduced; the mould does not need to be provided with holes, so that the repeated utilization rate of the mould is increased, and the cost is reduced; the upper chord ribs and the web member ribs are poured and hardened in advance, after the concrete of the bottom plate is poured, the upper chord ribs and the web member ribs are inserted into the bottom plate, and the reinforcing steel bars in the web members are anchored in the bottom plate, so that the production difficulty is effectively reduced, and the production efficiency is improved; the bending resistance of the bottom plate is effectively increased by the upper chord ribs and the web member ribs, and favorable conditions are created for support-free; in the field construction process, when the beam is a prefabricated beam, the support is completely avoided, when the beam is a cast-in-place beam, the beam only needs to be supported at the end part, and the middle part does not need to be supported, so that the difficulty and the cost of the construction field are reduced; prefabricating 50mm and casting 70mm in situ, reducing plate thickness, increasing building clear height, reducing structural load and reducing total concrete quantity.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. A preparation method of a prefabricated ribbed concrete composite slab is characterized by comprising the following steps:
s1, pouring small concrete blocks in advance;
s2, pouring truss concrete in advance: placing a truss concrete mold on the mold table; placing a certain number of small concrete blocks which are poured and formed on the truss concrete mould, wherein every two small concrete blocks are separated by a certain distance; pouring concrete in the truss concrete mold;
s3, pouring and forming the laminated slab: placing a laminated plate mold on the table top of the other mold and assembling the laminated plate mold; placing a steel bar mesh in the laminated slab die; binding a certain number of lifting rings on the steel bar mesh, and placing the poured steel truss concrete; and pouring concrete in the laminated slab mold to obtain the prefabricated ribbed concrete laminated slab.
2. The preparation method according to claim 1, wherein the number of the small concrete blocks placed on the truss concrete mold is 4-10.
3. The preparation method according to claim 1, wherein the distance between the small concrete blocks placed on the truss concrete mold is 300-600 mm.
4. The method according to claim 3, wherein the small concrete blocks are placed on the truss concrete mold at equal intervals.
5. The preparation method according to claim 1, wherein the number of the hoisting rings bound on the reinforcing mesh sheet is 2-6.
6. The method as claimed in claim 1, wherein the number of the steel truss concretes placed on the steel mesh sheets is 2-6.
7. A prefabricated ribbed concrete composite slab obtainable by the method of any one of claims 1 to 6, comprising: the device comprises a bottom plate (1), a plurality of upper chord ribs (2) vertical to the bottom plate (1) and a plurality of hanging rings (4) fixed on the upper surface of the bottom plate (1); the upper chord rib (2) comprises a plurality of web member ribs (3) arranged between the bottom plate (1) and the upper chord rib (2), and a plurality of rectangular holes are formed among the web member ribs (3).
8. Prefabricated ribbed concrete composite slab according to claim 7, characterized in that the distance between the lower surface of said bottom plate (1) and the upper surface of said upper chord rib (2) is the thickness of the slab.
9. The prefabricated ribbed concrete composite slab of claim 7 wherein said composite slab has a prefabricated thickness of 50mm and a cast-in-place thickness of 70 mm.
10. The prefabricated ribbed concrete composite slab of claim 7 wherein a close splice seam is used at the joint of said composite slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010911589.6A CN112171884A (en) | 2020-09-02 | 2020-09-02 | Prefabricated ribbed concrete composite slab and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010911589.6A CN112171884A (en) | 2020-09-02 | 2020-09-02 | Prefabricated ribbed concrete composite slab and preparation method thereof |
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| CN112171884A true CN112171884A (en) | 2021-01-05 |
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| CN202010911589.6A Pending CN112171884A (en) | 2020-09-02 | 2020-09-02 | Prefabricated ribbed concrete composite slab and preparation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101204831A (en) * | 2006-12-18 | 2008-06-25 | 吴方伯 | Rib precast member board manufacturing method |
| CN101736838A (en) * | 2009-12-29 | 2010-06-16 | 吴方伯 | Superimposed and prestressed reinforced concrete precast panel with ribs |
| KR101441515B1 (en) * | 2014-02-19 | 2014-09-17 | (주)연우피씨엔지니어링 | Precast concrete slab of Inver-Teed Rib |
| KR101594470B1 (en) * | 2015-05-28 | 2016-02-16 | 주식회사 네비엔 | Precast concrete slabs and constructed structures thereof |
| CN105926843A (en) * | 2016-06-29 | 2016-09-07 | 河北晶通建筑科技有限公司 | Ribbed prestressed thin plate as well as casting mold and casting method thereof |
| CN206545308U (en) * | 2016-11-17 | 2017-10-10 | 中通钢构股份有限公司 | A kind of Steel Castellated Beams rib concrete folding plate |
| CN111255136A (en) * | 2020-03-18 | 2020-06-09 | 无锡磊砼工程技术有限公司 | Ribbed prestressed laminated slab |
-
2020
- 2020-09-02 CN CN202010911589.6A patent/CN112171884A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101204831A (en) * | 2006-12-18 | 2008-06-25 | 吴方伯 | Rib precast member board manufacturing method |
| CN101736838A (en) * | 2009-12-29 | 2010-06-16 | 吴方伯 | Superimposed and prestressed reinforced concrete precast panel with ribs |
| KR101441515B1 (en) * | 2014-02-19 | 2014-09-17 | (주)연우피씨엔지니어링 | Precast concrete slab of Inver-Teed Rib |
| KR101594470B1 (en) * | 2015-05-28 | 2016-02-16 | 주식회사 네비엔 | Precast concrete slabs and constructed structures thereof |
| CN105926843A (en) * | 2016-06-29 | 2016-09-07 | 河北晶通建筑科技有限公司 | Ribbed prestressed thin plate as well as casting mold and casting method thereof |
| CN206545308U (en) * | 2016-11-17 | 2017-10-10 | 中通钢构股份有限公司 | A kind of Steel Castellated Beams rib concrete folding plate |
| CN111255136A (en) * | 2020-03-18 | 2020-06-09 | 无锡磊砼工程技术有限公司 | Ribbed prestressed laminated slab |
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Application publication date: 20210105 |
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