CN108193825A - A kind of prestressed cored slab - Google Patents
A kind of prestressed cored slab Download PDFInfo
- Publication number
- CN108193825A CN108193825A CN201810146837.5A CN201810146837A CN108193825A CN 108193825 A CN108193825 A CN 108193825A CN 201810146837 A CN201810146837 A CN 201810146837A CN 108193825 A CN108193825 A CN 108193825A
- Authority
- CN
- China
- Prior art keywords
- reinforcing bar
- plate body
- plate
- cored slab
- pouring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- 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
-
- 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
- E04C2/32—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 formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
- E04C2/326—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 formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material with corrugations, incisions or reliefs in more than one direction of the element
Abstract
The present invention provides a kind of prestressed cored slabs, including pouring plate body, the two sides for pouring plate body are equipped with step structure, the step structure is symmetrical arranged, the step structure is U shape structure, the plate wide end surface for pouring plate body is equipped with several hollow bores, and the plate body that pours is equipped with girder rib.It sets girder rib that can increase the integraty of after-pouring part and prestressed cored slab, while the rigidity of prestressed cored slab can be improved on plate body is poured, ensures the use intensity of prestressed cored slab.
Description
Technical field
The invention belongs to prefabricated construction design and construction fields, and in particular to a kind of prestressed cored slab.
Background technology
The bearing capacity of large-span prestressed hollow version (hereinafter referred to as cored slab) is high, and ductility is good, and structural behaviour is reliable, fits
For large span, the architectural design of large bay.According to the design needs, cored slab can set overlapping layers.Prefabricated plate face and overlapping layers
Faying face be in the more complicated position of structure stress, therefore the performance of faying face can all have very structural bearing capacity, rigidity
Big influence.However existing cored slab is only combined by plate face indentation or rough surface with overlapping layers at present, according to《Concrete structure
Design specification》GB50010-2010 and《Prefabricated concrete structure technical regulation》JGJ1-2014 requirements, plate face indentation or coarse
Face bumps depth is no less than 6mm, however, not suggesting that specific requirement in the processing of rough surface, does not also consider different works
The difference of the rough surface of skill processing, so in Practical Project, the performance of faying face can not be completely secured in indentation or rough surface,
Floor globality is bad, is unfavorable for structure safety.
Invention content
It is an object of the invention to solve above-mentioned problem in the prior art, a kind of prestressed cored slab is provided,
Prestressed cored slab pours plate body equipped with girder rib, set on plate body is poured girder rib can increase after-pouring part with
The integraty of prestressed cored slab, while the rigidity of prestressed cored slab can be improved, ensure that the use of prestressed cored slab is strong
Degree.
The present invention is achieved by the following technical solutions：
A kind of prestressed cored slab, including pouring plate body, the two sides for pouring plate body are equipped with step structure, described
Stage structure is symmetrical arranged, and the step structure is U shape structure, and the plate wide end surface for pouring plate body is equipped with several skies
Heart through-hole, the plate body that pours is equipped with girder rib.Set on plate body is poured girder rib can increase after-pouring part with it is pre-
The integraty of stress cored slab, while the rigidity of prestressed cored slab can be improved, ensure the use intensity of prestressed cored slab.
The girder rib includes wind up reinforcing bar, lower edge reinforcing bar and web member reinforcing bar, and the lower edge embedded steel is pouring plate body
Interior, the reinforcing bar that winds up, which is vacantly arranged on, to be poured above plate body, and the lower edge reinforcing bar and the reinforcing bar that winds up pass through web member bar connecting.
Girder rib is made to be formed, and pass through abdomen with being embedded in pour the reinforcing bar of the lower edge in plate body and being arranged on and pour the reinforcing bar that winds up outside plate body
Bar reinforcing bar will wind up reinforcing bar and lower edge bar connecting, make girder rib and pour plate body to form one, can either improve and pour plate body
Rigidity, and can ensure to pour the adhesiveness of plate body and after-pouring part.
For the reinforcing bar that winds up equipped with one, the lower edge reinforcing bar is equipped with two, and reinforcing bar and the lower edge reinforcing bar of winding up is into three
Angular arrangement.Girder rib is arranged to triangle, using the stability of triangle, can ensure the support strength of girder rib.
Height H >=80mm of the girder rib, buried depth h >=37mm of the girder rib.According to the thickness for pouring plate body
Degree, selects the girder rib of proper height, while ensure the buried depth of girder rib, it is ensured that in lifting and the casting process in later stage
In, girder rib is not detached from pouring plate body.
Distance h1 >=28mm of the minimum point of the reinforcing bar that winds up away from the upper surface for pouring plate body.Make the steel that winds up of girder rib
The distance that the perigee distance of muscle pours plate body upper surface is not less than 28mm, it is ensured that pipeline can be made to be arranged under girder rib
Side, plays a protective role to pipeline.
The girder rib is evenly arranged on plate wide end surface.Girder rib is made to be evenly arranged on plate wide end surface, makes stress equal
Even distribution, avoids the occurrence of stress concentration, is damaged to pouring plate body.
The both ends of girder rib are away from pouring the plate wide end surface distance of plate body as L3.Wind up reinforcing bar and the lower edge reinforcing bar edge of girder rib
Across the direction setting of plate of plate body is poured, lower edge embedded steel is made to pour in plate body, length is less than the plate span length for pouring plate body
Degree, the reinforcing bar that winds up are set in the top for pouring plate body and lower edge parallel reinforced steel bar, and length is again smaller than the plate span length's degree for pouring plate body.
The plate face for pouring plate body setting girder rib side is equipped with fluting, the length L2 of the fluting be less than plate across
Length L1, in the plate face for pouring plate body, the other end extends to the edge for pouring plate body for one end of the fluting.
Reinforced mesh is equipped in the fluting.
One end that the fluting is located in plate face is equipped with plate hole sprue.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, a kind of prestressed cored slab of the invention is equipped with girder rib on plate body is poured, and truss is set on plate body is poured
Muscle can increase the integraty of after-pouring part and prestressed cored slab, while can improve the rigidity of prestressed cored slab, protect
Demonstrate,prove the use intensity of prestressed cored slab；
2nd, girder rib of the invention includes being embedded in the lower edge reinforcing bar poured in plate body, is arranged on and pours winding up outside plate body
Reinforcing bar and connection are winded up the web member reinforcing bar of reinforcing bar and lower edge reinforcing bar, and girder rib is with being embedded in the lower edge reinforcing bar poured in plate body and set
It puts and is pouring the reinforcing bar composition that winds up outside plate body, and pass through web member reinforcing bar to wind up reinforcing bar and lower edge bar connecting, make girder rib
One is formed with pouring plate body, the rigidity for pouring plate body can either be improved, and can ensure to pour plate body and after-pouring part
Adhesiveness；
3rd, girder rib is arranged to triangle, utilizes three by of the invention wind up reinforcing bar and lower edge reinforcing bar into triangular arrangement
Angular stability can ensure the support strength of girder rib；
4th, girder rib of the invention is evenly arranged on plate wide end surface, and girder rib is made to be evenly arranged on plate wide end surface, is made
Stress is uniformly distributed, and avoids the occurrence of stress concentration, is damaged to pouring plate body.
Description of the drawings
Fig. 1 is the plate wide end surface structure diagram of the present invention；
Fig. 2 is the overall structure diagram of the present invention；
Fig. 3 is A-A schematic cross-sectional views in Fig. 2 of the present invention；
Fig. 4 is structure diagram after the completion of the girder rib of the present invention is embedding；
Fig. 5 is the reinforced mesh displacement structure schematic diagram of the present invention；
Fig. 6 is C-C cross-sectional views in Fig. 4 of the present invention；
Fig. 7 is the girder rib embedding structure schematic diagram of the present invention；
Fig. 8 is the girder rib structure diagram of the present invention；
Fig. 9 is the girder rib side structure schematic view of the present invention；
Figure 10 be the present invention Fig. 7 in enlarged structure schematic diagram at B；
Wherein, 1 plate body, is poured, 2, girder rib, 3, hollow bore, 4, step structure, 5, fluting, 6, plate hole sprue, 7, steel
Muscle mesh sheet, 21, wind up reinforcing bar, 22, web member reinforcing bar, 23, lower edge reinforcing bar.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
As shown in Figs. 1-3, a kind of prestressed cored slab, including pouring plate body 1, the two sides for pouring plate body 1 are equipped with
Step structure 4, the step structure 4 be symmetrical arranged, the step structure 4 be U shape structure, for it is two neighboring it is pre- should
The connection of power cored slab, the plate wide end surface for pouring plate body 1 are equipped with several hollow bores 3, and hollow bore 3 is uniformly distributed,
The weight of plate body 1 is poured for mitigating, the cross sectional shape of hollow bore 3 is round, ellipse or polygon, hollow bore 3
One of which shape can be used or use the combination of various shapes, the hollow bore 3 in the application is oval and circular
Combination, the plate body 1 that pours is equipped with girder rib 2.On plate body 1 is poured set girder rib 2 can increase after-pouring part with
The integraty of prestressed cored slab, while the rigidity of prestressed cored slab can be improved, ensure that the use of prestressed cored slab is strong
Degree.The plate for pouring plate body 1 is wide there are many specification, and width has 600mm, 900mm and 1200mm etc., and the thickness for pouring plate body 1 has
150mm, 180mm, 200mm, 250mm, 300mm and 380mm etc., according to the demand of different engineerings, may be selected different plates it is wide and
Plate thickness.
As Figure 7-9, the girder rib 2 includes wind up reinforcing bar 21, lower edge reinforcing bar 23 and web member reinforcing bar 22, the lower edge
Reinforcing bar 23, which is embedded in, to be poured in plate body 1, and hanging be arranged on of the reinforcing bar 21 that winds up pours 1 top of plate body, the lower edge reinforcing bar 23
Reinforcing bar 21 is connected by web member reinforcing bar 22 with winding up.Girder rib 2 is made to pour lower edge reinforcing bar 23 in plate body 1 and setting with being embedded in
It is formed in the reinforcing bar 21 that winds up poured outside plate body 1, and passes through that web member reinforcing bar 22 will wind up reinforcing bar 21 and lower edge reinforcing bar 23 connects, made
Girder rib 2 forms one with pouring plate body 1, can either improve the rigidity for pouring plate body 1, and can ensure to pour plate body 1 with after
Pour the adhesiveness of part.The reinforcing bar 21 that winds up is equipped with one, and the lower edge reinforcing bar 23 is equipped with two, the reinforcing bar 21 that winds up
With lower edge reinforcing bar 23 into triangular arrangement.Girder rib 2 is arranged to triangle, using the stability of triangle, can ensure purlin
The support strength of frame muscle 2.Web member reinforcing bar 22 is arranged using waveform, improves the connection to wind up reinforcing bar 21 and lower edge reinforcing bar 23
Property.
As shown in Figure 10, in order to reach preferable using effect, height H >=80mm of the girder rib 2, the girder rib
2 buried depth h >=37mm.According to the thickness for pouring plate body 1, the girder rib 2 of proper height is selected, while ensure girder rib 2
Buried depth, it is ensured that in the casting process in lifting and later stage, girder rib 2 is not detached from pouring plate body 1.The reinforcing bar that winds up
Distance h1 >=28mm of 21 minimum point away from the upper surface for pouring plate body 1.Make the perigee distance of the reinforcing bar 21 that winds up of girder rib 2
The distance for pouring 1 upper surface of plate body is not less than 28mm, it is ensured that pipeline can be made to be arranged in the lower section of girder rib 2, one is played to pipeline
Fixed protective effect.
As shown in Fig. 2, the girder rib 2 is evenly arranged on plate wide end surface.Make the uniform cloth on plate wide end surface of girder rib 2
It puts, is uniformly distributed stress, avoid the occurrence of stress concentration, damaged to pouring plate body 1.The both ends of girder rib 2 are away from pouring plate
The plate wide end surface distance of body 1 is L3.Girder rib 2 wind up reinforcing bar 21 and lower edge reinforcing bar 23 is set along the plate for pouring plate body 1 across direction
It puts, is embedded in lower edge reinforcing bar 23 and pours in plate body 1, length is less than the plate span length's degree for pouring plate body 1, and the reinforcing bar 21 that winds up is pouring
The top and lower edge reinforcing bar 23 for building plate body 1 are arranged in parallel, and length is again smaller than the plate span length's degree for pouring plate body 1.The two of girder rib 2
It is L3 to hold the distance away from two plate wide end surfaces for pouring plate body 1.
As shown in Fig. 2, Fig. 4 and Fig. 6, the plate body 1 that pours sets the plate face of 2 side of girder rib to be equipped with fluting 5, described
The length L2 of fluting 5 be less than plate across length L1, in the plate face for pouring plate body 1, the other end extends to for one end of the fluting 5
Pour the edge of plate body 1.As shown in figure 5, it is equipped with reinforced mesh 7 in the fluting 5.When assembling installation, reinforced mesh 7
Wall or beam center line are extended through, ensures integrality, the validity of installation node after the completion of last layer.As shown in Fig. 2, Fig. 4 and Fig. 6,
One end that the fluting 5 is located in plate face is equipped with plate hole sprue 6.The plate hole sprue 6 of precast concrete can improve intensity and avoid this
It is damaged to locate plate face, while prevents rear pouring concrete from pouring into hole.
Above-mentioned technical proposal is one embodiment of the present invention, for those skilled in the art, at this
On the basis of disclosure of the invention application process and principle, it is easy to make various types of improvement or deformation, be not limited solely to this
Invent the described method of above-mentioned specific embodiment, therefore previously described mode is only preferred, and and without limitation
The meaning of property.
Claims (10)
1. a kind of prestressed cored slab, which is characterized in that including pouring plate body, the two sides for pouring plate body are equipped with Step-edge Junction
Structure, the step structure are symmetrical arranged, and the step structure is U shape structure, is set on the plate wide end surface for pouring plate body
There are several hollow bores, the plate body that pours is equipped with girder rib.
2. a kind of prestressed cored slab according to claim 1, which is characterized in that the girder rib include wind up reinforcing bar,
Lower edge reinforcing bar and web member reinforcing bar, the lower edge embedded steel are being poured in plate body, and the reinforcing bar that winds up, which is vacantly arranged on, pours plate
Above body, the lower edge reinforcing bar and the reinforcing bar that winds up pass through web member bar connecting.
3. a kind of prestressed cored slab according to claim 2, which is characterized in that the reinforcing bar that winds up is equipped with one, institute
Lower edge reinforcing bar is stated equipped with two, reinforcing bar and the lower edge reinforcing bar of winding up is into triangular arrangement.
4. a kind of prestressed cored slab according to claim 2, which is characterized in that height H >=80mm of the girder rib,
Buried depth h >=37mm of the girder rib.
5. a kind of prestressed cored slab according to claim 3, which is characterized in that the minimum point of the reinforcing bar that winds up is away from pouring
Build the distance h of the upper surface of plate body1≥28mm。
6. a kind of prestressed cored slab according to claim 4, which is characterized in that the girder rib is equal on plate wide end surface
Even arrangement.
7. a kind of prestressed cored slab according to claim 6, which is characterized in that the both ends of the girder rib are away from pouring plate
The plate wide end surface distance of body is L3.
8. a kind of prestressed cored slab according to claim 1, which is characterized in that described to pour plate body setting girder rib one
The plate face of side is equipped with fluting, the length L2 of the fluting be less than plate across length L1, one end of the fluting is pouring plate body
Plate face on, the other end extends to the edge for pouring plate body.
9. a kind of prestressed cored slab according to claim 8, which is characterized in that reinforced mesh is equipped in the fluting.
10. a kind of prestressed cored slab according to claim 9, which is characterized in that the fluting is located at one in plate face
End is equipped with plate hole sprue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810146837.5A CN108193825A (en) | 2018-02-12 | 2018-02-12 | A kind of prestressed cored slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810146837.5A CN108193825A (en) | 2018-02-12 | 2018-02-12 | A kind of prestressed cored slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108193825A true CN108193825A (en) | 2018-06-22 |
Family
ID=62593211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810146837.5A Pending CN108193825A (en) | 2018-02-12 | 2018-02-12 | A kind of prestressed cored slab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108193825A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110281382A (en) * | 2019-07-25 | 2019-09-27 | 万特福建筑构件有限公司 | A kind of PC component girder rib sheath |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4380196A (en) * | 1995-01-06 | 1996-07-24 | Broken Hill Proprietary Company Limited, The | A structural member |
| JP2002349006A (en) * | 2001-05-24 | 2002-12-04 | Miyoujiyou Cement Kk | Concrete plate for forming faulting slab, faulting slab structure and method for manufacturing the same |
| CN101565988A (en) * | 2008-04-21 | 2009-10-28 | 万科企业股份有限公司 | Girder rib special for precast concrete slab, and construction method of precast slab and floor slab or wall |
| CN106869388A (en) * | 2017-03-03 | 2017-06-20 | 王海崴 | A kind of supporting steel dictyosome cavity floor with holes |
| CN208056445U (en) * | 2018-02-12 | 2018-11-06 | 山东中新绿色建筑科技有限公司 | A kind of prestressed cored slab |
-
2018
- 2018-02-12 CN CN201810146837.5A patent/CN108193825A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4380196A (en) * | 1995-01-06 | 1996-07-24 | Broken Hill Proprietary Company Limited, The | A structural member |
| JP2002349006A (en) * | 2001-05-24 | 2002-12-04 | Miyoujiyou Cement Kk | Concrete plate for forming faulting slab, faulting slab structure and method for manufacturing the same |
| CN101565988A (en) * | 2008-04-21 | 2009-10-28 | 万科企业股份有限公司 | Girder rib special for precast concrete slab, and construction method of precast slab and floor slab or wall |
| CN106869388A (en) * | 2017-03-03 | 2017-06-20 | 王海崴 | A kind of supporting steel dictyosome cavity floor with holes |
| CN208056445U (en) * | 2018-02-12 | 2018-11-06 | 山东中新绿色建筑科技有限公司 | A kind of prestressed cored slab |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110281382A (en) * | 2019-07-25 | 2019-09-27 | 万特福建筑构件有限公司 | A kind of PC component girder rib sheath |
| CN110281382B (en) * | 2019-07-25 | 2024-01-23 | 万特福建筑构件有限公司 | Truss rib sheath for PC component |
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