CN203905240U - Prestress hollow laminated floor slab - Google Patents
Prestress hollow laminated floor slab Download PDFInfo
- Publication number
- CN203905240U CN203905240U CN201420198675.7U CN201420198675U CN203905240U CN 203905240 U CN203905240 U CN 203905240U CN 201420198675 U CN201420198675 U CN 201420198675U CN 203905240 U CN203905240 U CN 203905240U
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- CN
- China
- Prior art keywords
- slab
- prestressed cored
- cored slab
- concrete
- prestress
- 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.)
- Expired - Lifetime
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- 239000004567 concrete Substances 0.000 claims abstract description 32
- 238000011065 in-situ storage Methods 0.000 claims abstract description 14
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 230000002787 reinforcement Effects 0.000 claims abstract description 7
- 239000004744 fabric Substances 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 210000003205 muscle Anatomy 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010008 shearing Methods 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 241001314440 Triphora trianthophoros Species 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
A prestress hollow laminated floor slab comprises a prestress hollow slab and a cast-in-situ reinforced concrete laminated layer and is characterized in that the prestress hollow slab is longitudinally provided with a plurality of through holes; opening slots with certain lengths are formed in the upper part of the through holes in the slab end; prestress steel strands are longitudinally embedded in the lower part of the prestress hollow slab; longitudinal grooves or concave-convex surfaces are arranged on the upper surface of the hollow slab; the cast-in-situ reinforced concrete laminated layer is arranged between adjacent prestress hollow slabs and the upper part of the prestress hollow slab; a bidirectional reinforcement fabric is embedded in the concrete at the upper part. The firstly simply supported and then continuously supported laminated slab is good in bending resistance and small in deformation, the concave-convex surfaces are arranged at the surface of the hollow slab, the slab seam widths are enlarged, and anti-shearing pulling steel bars are adopted in the slab seams, so the integrity and laminating performance of the floor slab are improved.
Description
Technical field
The utility model relates to building structure field, relates in particular to a kind of integral precast floor.
Background technology
Bearing capacity is large, hollow rate is high, steel using amount is little for traditional prestressing force macroporous plate (SP plate), be highly suitable for the floor that load is larger, but its globality is poor, with the stacked poor performance of closing of rear pouring concrete, conventionally can only be by the stressed consideration of freely-supported, so supporting capacity is subject to certain limitation.In addition, the plate end shear resistance of this large hollow rate is poor, and during for the larger flooring of load, its shear strength is difficult to meet instructions for use.A kind of superimposed performance is good, the integral precast continuous floor of good integrity have not been reported.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiency of above-mentioned prior art, provides that a kind of superimposed performance is good, the pre-stress hollow laminated floor slab of good integrity.
A kind of pre-stress hollow laminated floor slab providing according to the utility model, comprise prestressed cored slab and cast-in-situ reinforced concrete overlapping layers, described prestressed cored slab is vertically arranged with some through holes, plate end through hole top is provided with the open slot of certain length, described prestressed cored slab bottom is longitudinally embedded with prestress wire, the upper surface of hollowcore slab is provided with longitudinal fluting or male and fomale(M&F), described cast-in-situ reinforced concrete overlapping layers is filled between adjacent prestressed cored slab and prestressed cored slab top, is embedded with two-way concrete slab net in the concrete on top.
A kind of pre-stress hollow laminated floor slab providing according to the utility model also has following attached technical characterictic:
Described prestressed cored slab both sides are provided with recess, and the recess bottom extension elongation of taking the lead is greater than top and takes the lead.
Concrete bottom between the adjacent prestressed cored slab of described cast-in-situ reinforced concrete overlapping layers is equipped with flanging steel sheet, and flanging steel sheet is close to the bottom of hollowcore slab and is taken the lead; Between adjacent prestressed cored slab, in concrete, be longitudinally vertically embedded with reinforced mesh or continuous S shape shear reinforcement.
Described cast-in-situ reinforced concrete overlapping layers is filled in the open slot of prestressed cored slab, and the root through hole of open slot is provided with sealing of hole plug, and interval, open slot top is embedded with the stressed negative muscle of plate.
At the bottom of the plate of described prestressed cored slab, in middle part level, be pasted with plate and lay the vertical carbon cloth of direction.
A kind of pre-stress hollow laminated floor slab providing according to the utility model compared with prior art tool has the following advantages:
1, adopt continuous superimposed sheet after first freely-supported, its bending resistance significantly improves, and distortion reduces, and end shear resistance improves, and has widened the load scope of prestressed cored slab application.
2, the plate face of prestressed cored slab is taked to arrange in groove and male and fomale(M&F) and increasing plate seam width and plate seam and is joined the measures such as shearing resistance steel tie, the globality of the old and new's concrete combination is improved, common stress performance raising.
3, at the bottom of plate, paste horizontal carbon cloth, effectively in transmission plate, load, between adjacent hollowcore slab, can reduce the equivalent uniform load of plate.
Accompanying drawing explanation
Fig. 1 is composition layered stereoscopic figure of the present utility model
Fig. 2 is plate of the present utility model end laminated floor slab sectional drawing
Fig. 3 is plate span centre of the present utility model portion laminated floor slab sectional drawing
Fig. 4 is band groove prestressed cored slab stereogram of the present utility model
Fig. 5 is band male and fomale(M&F) prestressed slab stereogram of the present utility model
Fig. 6 is prestressed cored slab of the present utility model side drawing
Fig. 7 is plate seam reinforced mesh drawing of the present utility model
Fig. 8 is the utility model S muscle drawing
The specific embodiment
Referring to Fig. 1 to Fig. 6, a kind of pre-stress hollow laminated floor slab providing at the utility model, comprise prestressed cored slab 1 and cast-in-situ reinforced concrete overlapping layers 2, described prestressed cored slab 1 is vertically arranged with some through holes 3, plate end through hole top is provided with the open slot 4 of certain length, described prestressed cored slab 1 bottom is longitudinally embedded with prestress wire 5, the upper surface of prestressed cored slab 1 is provided with longitudinal fluting or male and fomale(M&F) 6, described cast-in-situ reinforced concrete overlapping layers 2 is filled between adjacent prestressed cored slab and prestressed cored slab top, in the concrete on top, be embedded with two-way concrete slab net 7.Prestressed cored slab arranges through hole not affecting under the ability to take the burden prerequisite of plate, can reduce concrete consumption, lightened plate floor deadweight.The open slot 4 on plate end through hole top can make overlapping layers concrete 2 enter in plate end through hole 3, both the globality of the old and new's concrete combination, the shear strength of raising superposed surfaces had been increased, the problem that can solve hollowcore slab end shear strength deficiency simultaneously, makes the security of system degree of structure more unified; Prestressed cored slab 1 surface groove or male and fomale(M&F) 6, can improve the shear strength of the old and new's concrete bonding surface, increases the gross thickness of new poured concrete, and the anti-ability that starts improves; In new poured concrete, bury two-way concrete slab net sheet 7 underground, for improving globality and the anti-contracility energy of overlapping layers, in end, also the negative muscle as superimposed sheet is resisted plate hogging moment.
Referring to Fig. 1 to Fig. 6, in the above-described embodiment providing at the utility model, described prestressed cored slab 1 both sides are provided with recess 8, and the recess 8 bottoms extension elongation of taking the lead is greater than top and takes the lead.Plate side recess is the transmission shearing resistance groove of adjacent panel, suitable for readingly outer chooses littlely, for making new poured concrete can be easier to enter in plate seam, increases plate seam concrete thickness, improves the intensity as shearing-resistant member.
Referring to Fig. 1 to Fig. 3, in the above-described embodiment providing at the utility model, the concrete bottom that the adjacent prestressed cored slab of described cast-in-situ reinforced concrete overlapping layers 2 is 1 is equipped with flanging steel sheet 9, and flanging steel sheet 9 is close to the bottom of prestressed cored slab 1 and is taken the lead; In 1 concrete of adjacent prestressed cored slab, be longitudinally vertically embedded with reinforced mesh or continuous S shape shear reinforcement 10.Flanging steel sheet 9 both can be used as the fixedly bed die of plate seam concrete, prevented that concrete from leaking, and can be used as again the bending resistance arrangement of reinforcement of cast-in-situ reinforced concrete overlapping layers 2, killing three birds with one stone; The anti-ability of starting that the reinforced mesh of plate seam and S shape shear reinforcement 10 can improve overlapping layers concrete 2, improves globality and the shear strength of the old and new's concrete greatly.
Referring to Fig. 2, in the above-described embodiment providing at the utility model, the mechanical snap effect that the interior filling concrete of open slot 4 can improve the old and new's concrete, superimposed sheet globality improves, and sealing of hole plug can prevent that new poured concrete from flowing in through hole, improves the compactness of concrete in open slot simultaneously.
Referring to Fig. 3, in the above-described embodiment providing at the utility model, carbon cloth 11, as the transverse reinforcement of superimposed sheet, can make plate portion bidirectional stress, makes between adjacent panel transmission force property better, simultaneously the transverse contraction crack of restraining plate bottom.In the present embodiment, the lay width of carbon cloth is the 1/10-1/20 of plate length, in span centre setting.
Claims (5)
1. a pre-stress hollow laminated floor slab, comprise prestressed cored slab and cast-in-situ reinforced concrete overlapping layers, it is characterized in that described prestressed cored slab is vertically arranged with some through holes, plate end through hole top is provided with the open slot of certain length, prestressed cored slab bottom is longitudinally embedded with prestress wire, the upper surface of hollowcore slab is provided with longitudinal fluting or male and fomale(M&F), described cast-in-situ reinforced concrete overlapping layers is filled between adjacent prestressed cored slab and prestressed cored slab top, is embedded with two-way concrete slab net in the concrete on top.
2. pre-stress hollow laminated floor slab as claimed in claim 1, is characterized in that described prestressed cored slab both sides are provided with recess, and the recess bottom extension elongation of taking the lead is greater than top and takes the lead.
3. pre-stress hollow laminated floor slab as claimed in claim 1, is characterized in that the concrete bottom between the adjacent prestressed cored slab of described cast-in-situ reinforced concrete overlapping layers is equipped with flanging steel sheet, and flanging steel sheet is close to the bottom of prestressed cored slab and is taken the lead; Between adjacent prestressed cored slab, in concrete, be longitudinally vertically embedded with reinforced mesh or continuous S shape shear reinforcement.
4. pre-stress hollow laminated floor slab as claimed in claim 1, is characterized in that described cast-in-situ reinforced concrete overlapping layers is filled in the open slot of prestressed cored slab, and the root through hole of open slot is provided with sealing of hole plug, and interval, open slot top is embedded with the stressed negative muscle of plate.
5. pre-stress hollow laminated floor slab as claimed in claim 1, is characterized in that in middle part level, being pasted with plate and laying the vertical carbon cloth of direction at the bottom of the plate of described prestressed cored slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420198675.7U CN203905240U (en) | 2014-04-22 | 2014-04-22 | Prestress hollow laminated floor slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420198675.7U CN203905240U (en) | 2014-04-22 | 2014-04-22 | Prestress hollow laminated floor slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203905240U true CN203905240U (en) | 2014-10-29 |
Family
ID=51779528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420198675.7U Expired - Lifetime CN203905240U (en) | 2014-04-22 | 2014-04-22 | Prestress hollow laminated floor slab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203905240U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612300A (en) * | 2015-01-29 | 2015-05-13 | 济南轨道交通集团有限公司 | Hollow composite floor slab and construction method thereof |
| CN106401052A (en) * | 2016-10-21 | 2017-02-15 | 季兆桐 | Prefabricated prestressed hollow slab and preparing method thereof |
| CN110735492A (en) * | 2019-10-28 | 2020-01-31 | 浙江中清大建筑产业化有限公司 | Connecting structure of prestressed hollow composite slabs and construction method thereof |
| CN113445652A (en) * | 2021-06-15 | 2021-09-28 | 南京航空航天大学 | Plate end slotted hole SP hollow composite slab-steel beam connecting structure and construction method thereof |
-
2014
- 2014-04-22 CN CN201420198675.7U patent/CN203905240U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612300A (en) * | 2015-01-29 | 2015-05-13 | 济南轨道交通集团有限公司 | Hollow composite floor slab and construction method thereof |
| CN106401052A (en) * | 2016-10-21 | 2017-02-15 | 季兆桐 | Prefabricated prestressed hollow slab and preparing method thereof |
| CN110735492A (en) * | 2019-10-28 | 2020-01-31 | 浙江中清大建筑产业化有限公司 | Connecting structure of prestressed hollow composite slabs and construction method thereof |
| CN113445652A (en) * | 2021-06-15 | 2021-09-28 | 南京航空航天大学 | Plate end slotted hole SP hollow composite slab-steel beam connecting structure and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |