CN205296522U - Super thick cast -in -place post stretching of large -span prestressing force hollow floor that slowly bonds - Google Patents
Super thick cast -in -place post stretching of large -span prestressing force hollow floor that slowly bonds Download PDFInfo
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- CN205296522U CN205296522U CN201521089690.9U CN201521089690U CN205296522U CN 205296522 U CN205296522 U CN 205296522U CN 201521089690 U CN201521089690 U CN 201521089690U CN 205296522 U CN205296522 U CN 205296522U
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- hollow block
- cassette ceiling
- floor
- reinforcing bar
- super thick
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- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The utility model relates to a super thick cast -in -place post stretching of large -span prestressing force hollow floor that slowly bonds, including floor owner muscle, plate -fin reinforcing bar, upper reinforcing bar, slowly bond prestressing tendons, side form, prefabricated hollow block, die block and support component, floor owner muscle length is greater than the horizontal span of hollow floor, hollow floor adopts concrete placement, and the bottom is equipped with the support component, hollow floor is inside to have prefabricated hollow block, is equipped with U type checkpost between the adjacent prefabricated hollow block, be equipped with grout hole and exhaust hole above the prefabrication hollow block, it is continuous with the upper reinforcing bar and the base plate reinforcing bar at both ends respectively that anti superficial reinforcing bar passes prefabricated hollow block, prestressing tendons traversing hollow floor slowly bonds. The utility model discloses the hollow floor construction method that makes is anti superficial respond well, and construction convenience has reduced the concrete quantity, has improved construction efficiency, has reduced the cost, has reduced the destruction to the environment simultaneously, has good economic and social benefits.
Description
Technical field
This utility model belongs to house construction engineering field, is specifically related to the large span super thick retarded adhesive prestressed cassette ceiling of cast-in-place post stretching.
Technical background
Recently as engineering level be substantially improved with individual demand growing, the domestic construction market Requirement Increases to open large space; Prestressed hollow slab technology has the features such as deadweight is little, rigidity big, cracking resistance, non-deformability are strong, and large span, big load structure are had well adapting to property.
The anti-floating of precast hollow block is adopted by traditional cassette ceiling construction technology mostly prefabricated section and main body bar connecting are fixed, the buoyancy that precast hollow block produces is delivered to framework of steel reinforcement, but for large span super thick cassette ceiling, precast hollow block will produce huge buoyancy in the concrete just built, if process bad may result in reinforcing bar, bed die entirety float, the situation that shuttering supporting unstability is collapsed; Tradition prestressed hollow slab uses unbonded prestressing tendon or bonded prestressed tendon, unbonded prestressing tendon has the shortcoming that structural behaviour is not enough, and bonded prestressed tendon construction needs to arrange duct and pressure drop, complex process and create substantial amounts of pollutant.
Summary of the invention
The large span super thick retarded adhesive prestressed cassette ceiling of cast-in-place post stretching that this utility model provides, anti-floating is respond well, easy construction, decrease concrete amount, improve construction efficiency, reduce cost, decrease the destruction to environment simultaneously, there are good economic and social benefits.
The retarded adhesive prestressed cassette ceiling of the cast-in-place post stretching of large span super thick, including the main muscle of floor, rib of slab reinforcing bar, top bars, delayed bonding prestressed tendon, side form, precast hollow block, bed die and support parts;
The main muscle lateral arrangement of described floor, rib of slab reinforcing bar is longitudinally arranged, and the main muscle length of floor, more than cassette ceiling horizontal span, is stretched out outside side form;
Described cassette ceiling adopts concreting, and bottom is provided with support parts;
The precast hollow block arranging string more than one is had inside described cassette ceiling, U-shaped clamp it is provided with between contiguous prefabricated hollow block, the lateral displacement of restriction precast hollow block, U-shaped clamp is connected with the bottom reinforcement bars bottom cassette ceiling, and bottom reinforcement bars is fixed by bifilar iron wire and bed die colligation;
Described precast hollow block is arranged over grout hole and steam vent, and Anti-floating reinforcing steel bar is connected with the top bars at two ends and baseplate reinforcing bar respectively through precast hollow block, and Anti-floating reinforcing steel bar and precast hollow block are fixed by nut;
Described support parts include the support that bottom the steel pipe of horizontally set and steel pipe, orthogonal direction is arranged, described steel pipe is connected with bed die by wood is stupefied;
Described delayed bonding prestressed tendon is horizontally through cassette ceiling, it is prevented that the buoyancy that precast hollow block produces causes the overall floating of reinforcing bar and bed die, the phenomenon that unstability is collapsed occurs.
Preferably, the main muscle of above-mentioned floor and side form adopt rubber blanket to reinforce, and integral forming blocks leak, it is prevented that spillage.
Preferably, between above-mentioned bottom reinforcement bars and precast hollow block, it is provided with cushion block, fixing precast hollow block, it is prevented that produce displacement.
Preferably, above-mentioned Anti-floating reinforcing steel bar two ends are hook solid, fix with top bars and baseplate reinforcing bar respectively.
Preferably, above-mentioned wood is stupefied at steel pipe orthogonal direction, is used for fixing bed die and steel pipe, has the effect that auxiliary supports.
Preferably, the location of delayed bonding prestressed tendon adopts steel plate locating rack, make it that length travel not occur, steel plate locating rack is made up of steel plate base, stud and arc jacking, delayed bonding prestressed tendon and arc jacking are positioned by tied silk colligation, tied silk is not easily too tight, it is simple to later stage stretch-draw, steel plate base is welded with baseplate reinforcing bar.
Beneficial effect:
(1) inserting knot of delayed bonding prestressed tendon is simple, it is not necessary to reserving hole channel and pressure drop, easy construction, decreases the buying of equipment, and reduces the discharge of pollutant (mortar), is conducive to environmental protection.
(2) precast hollow block, the main muscle of floor, side form being linked to be an entirety, anti-floating is respond well, controls disease that may be present in cassette ceiling casting process admirably, it is ensured that the quality of prestressed hollow slab construction.
(3) when not changing floor sectional dimension, the application of delayed bonding prestressed tendon technology can make the quantity of presstressed reinforcing steel reduce about 15%, and cassette ceiling concrete amount is few, therefore has good economic benefit.
Accompanying drawing explanation
Fig. 1 is this utility model retarded adhesive prestressed cassette ceiling schematic diagram of the cast-in-place post stretching of large span super thick;
Fig. 2 is this utility model retarded adhesive prestressed cassette ceiling sectional view of the cast-in-place post stretching of large span super thick;
Fig. 3 is delayed bonding prestressed tendon layout drawing.
In figure: 1. bed die, 2. baseplate reinforcing bar, 3. precast hollow block, 4.U shape clamp, 5. Anti-floating reinforcing steel bar, 6. nut, 7. grout hole, 8. steam vent, 9. top bars, 10. concrete, 11. wood are stupefied, 12. steel pipes, 13. support, the 14. main muscle of floor, 15. rib of slab reinforcing bars, 16. side forms, 17. rubber blanket, 18. delayed bonding prestressed tendons, 19. cushion blocks, 20. bifilar iron wires, 21 tied silks, 22. studs, 23. steel plate base, 24. arc jackings.
Detailed description of the invention
Just not stating tired in these enforcements such as present embodiment Plate Welding technique, bolt connection construction technique, tension of prestressed tendon technique and concrete pouring construction technique, emphasis sets forth the embodiment that the present invention relates to structure.
Embodiment 1
Shown in Fig. 1-2, the retarded adhesive prestressed cassette ceiling of the cast-in-place post stretching of large span super thick, including the main muscle 14 of floor, rib of slab reinforcing bar 15, top bars 9, delayed bonding prestressed tendon 18, side form 16, precast hollow block 3, bed die 1 and support parts;
Described floor main muscle 14 lateral arrangement, rib of slab reinforcing bar 15 is longitudinally arranged, and the main muscle 14 of floor is connected with side form 16, and length is more than cassette ceiling horizontal span, stretches out side form 16 outside, buoyancy is delivered to side form 16;
Described cassette ceiling adopts concrete 10 to build, and bottom is provided with support parts;
Multiple rows of multiple row precast hollow block 3 is had inside described cassette ceiling, U-shaped clamp 4 it is provided with between contiguous prefabricated hollow block 3, the lateral displacement of restriction precast hollow block 3, U-shaped clamp 4 is connected with the bottom reinforcement bars 2 bottom cassette ceiling, and bottom reinforcement bars 2 is fixed with bed die 1 colligation by bifilar iron wire 20;
Described precast hollow block 3 is arranged over grout hole 7 and steam vent 8, and Anti-floating reinforcing steel bar 5 is connected with the top bars 9 at two ends and baseplate reinforcing bar 2 respectively through precast hollow block 3, and Anti-floating reinforcing steel bar 5 is fixed by nut 6 with precast hollow block 3;
Described support parts include the support 13 that bottom the steel pipe 12 of horizontally set and steel pipe 12, orthogonal direction is arranged, described steel pipe 12 is connected with bed die 1 by wood stupefied 11;
Described delayed bonding prestressed tendon 18 is horizontally through cassette ceiling, it is prevented that the buoyancy that precast hollow block produces causes the overall floating of reinforcing bar and bed die, the phenomenon that unstability is collapsed occurs.
The main muscle 14 of floor adopts rubber blanket 17 to reinforce with side form 16, and integral forming blocks leak, it is prevented that spillage.
Cushion block 19 it is provided with, fixing precast hollow block 3, it is prevented that produce displacement between bottom reinforcement bars 2 and precast hollow block 3.
, Anti-floating reinforcing steel bar 5 two ends are hook solid, fix with top bars 9 and baseplate reinforcing bar 2 respectively.
Wood stupefied 11, at steel pipe 12 orthogonal direction, is used for fixing bed die 1 and steel pipe 12, has the effect that auxiliary supports.
As shown in Figure 3, the location of delayed bonding prestressed tendon 18 adopts steel plate locating rack, make it that length travel not occur, steel plate locating rack is made up of steel plate base 23, stud 22 and arc jacking 24, delayed bonding prestressed tendon 18 and arc jacking 24 are by tied silk 21 colligation location, tied silk 21 is not easily too tight, it is simple to later stage stretch-draw, and steel plate base 23 is welded with baseplate reinforcing bar 2.
The construction technology of the retarded adhesive prestressed cassette ceiling of the cast-in-place post stretching of large span super thick is as follows:
(1) setting steel pipe 12 and support 13 in floor plan position as support, arrange wood stupefied 11 at steel pipe 12 orthogonal direction, lay bed die 1 above wood stupefied 11, bed die 1 is above through the fixing bottom reinforcement bars 2 of bifilar iron wire 20 colligation;
(2) the main muscle 14 of colligation floor and rib of slab reinforcing bar 15, during colligation, the position of reserved precast hollow block 3, installs side form 16, and the main muscle 14 of floor is connected with side form 16, and length is more than cassette ceiling horizontal span, stretches out side form 16 outside, and blend rubber pad 17 is reinforced;
(3) in cassette ceiling, multiple rows of multiple row precast hollow block 3 is arranged, U-shaped clamp 4 it is provided with between contiguous prefabricated hollow block 3, the lateral displacement of restriction precast hollow block 3, U-shaped clamp 4 is connected with the bottom reinforcement bars 2 bottom cassette ceiling, Anti-floating reinforcing steel bar 5 is connected with the top bars 9 at two ends and baseplate reinforcing bar 2 respectively through precast hollow block 3, Anti-floating reinforcing steel bar 5 is fixed by nut 6 with precast hollow block 3, arranging cushion block 19 between bottom reinforcement bars 2 and precast hollow block 3, precast hollow block 3 is provided above grout hole 7 and steam vent 8 simultaneously;
(4) delayed bonding prestressed tendon 18 is horizontally through cassette ceiling, adopt steel plate locating rack location, steel plate locating rack is made up of steel plate base 23, stud 22 and arc jacking 24, with arc jacking 24 by tied silk 21 colligation location, tied silk 21 is not easily too tight, it is easy to later stage stretch-draw, steel plate base 23 is welded with baseplate reinforcing bar 2;
(5) after confirming that side form 16 is closed, carrying out concrete 10 and build, vibrate with vibrating spear when building in grout hole 7, gas is discharged from steam vent 8;
(6) concrete 10 intensity reaches the pre-stretch-draw that the 80% of design carries out delayed bonding prestressed tendon 18, and intensity completes final stretch-draw when reaching the 100% of design.
Claims (6)
1. the retarded adhesive prestressed cassette ceiling of the cast-in-place post stretching of large span super thick, it is characterised in that described cassette ceiling includes the main muscle of floor, rib of slab reinforcing bar, top bars, delayed bonding prestressed tendon, side form, precast hollow block, bed die and support parts;
The main muscle lateral arrangement of described floor, rib of slab reinforcing bar is longitudinally arranged, and the main muscle length of floor, more than cassette ceiling horizontal span, is stretched out outside side form;
Described cassette ceiling adopts concreting, and bottom is provided with support parts;
Having the precast hollow block arranging string more than inside described cassette ceiling, be provided with U-shaped clamp between contiguous prefabricated hollow block, U-shaped clamp is connected with the bottom reinforcement bars bottom cassette ceiling, and bottom reinforcement bars is fixed by bifilar iron wire and bed die colligation;
Described precast hollow block is arranged over grout hole and steam vent, and Anti-floating reinforcing steel bar is connected with the top bars at two ends and baseplate reinforcing bar respectively through precast hollow block, and Anti-floating reinforcing steel bar and precast hollow block are fixed by nut;
Described support parts include the support that bottom the steel pipe of horizontally set and steel pipe, orthogonal direction is arranged, described steel pipe is connected with bed die by wood is stupefied;
Described delayed bonding prestressed tendon is horizontally through cassette ceiling.
2. the large span super thick according to claim 1 retarded adhesive prestressed cassette ceiling of cast-in-place post stretching, it is characterised in that the main muscle of described floor and side form adopt rubber blanket to reinforce.
3. the large span super thick according to claim 1 retarded adhesive prestressed cassette ceiling of cast-in-place post stretching, it is characterised in that described bottom reinforcement bars and precast hollow block are provided with cushion block.
4. the large span super thick according to claim 1 retarded adhesive prestressed cassette ceiling of cast-in-place post stretching, it is characterised in that described Anti-floating reinforcing steel bar two ends are hook solid.
5. the large span super thick according to claim 1 retarded adhesive prestressed cassette ceiling of cast-in-place post stretching, it is characterised in that described wood is stupefied at steel pipe orthogonal direction.
6. the large span super thick according to claim 1 retarded adhesive prestressed cassette ceiling of cast-in-place post stretching, it is characterized in that, the location of described delayed bonding prestressed tendon adopts steel plate locating rack, steel plate locating rack is made up of steel plate base, stud and arc jacking, delayed bonding prestressed tendon and arc jacking are positioned by tied silk colligation, and steel plate base is welded with baseplate reinforcing bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521089690.9U CN205296522U (en) | 2015-12-23 | 2015-12-23 | Super thick cast -in -place post stretching of large -span prestressing force hollow floor that slowly bonds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521089690.9U CN205296522U (en) | 2015-12-23 | 2015-12-23 | Super thick cast -in -place post stretching of large -span prestressing force hollow floor that slowly bonds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205296522U true CN205296522U (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521089690.9U Expired - Fee Related CN205296522U (en) | 2015-12-23 | 2015-12-23 | Super thick cast -in -place post stretching of large -span prestressing force hollow floor that slowly bonds |
Country Status (1)
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| CN (1) | CN205296522U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836597A (en) * | 2017-03-21 | 2017-06-13 | 中国航空规划设计研究总院有限公司 | A kind of cassette ceiling core fixing device and its construction method |
| CN107700728A (en) * | 2017-09-30 | 2018-02-16 | 沈阳建筑大学 | Easy connect band shear key reinforced concrete slab structure and connection method |
| CN114351926A (en) * | 2022-03-21 | 2022-04-15 | 中铁九局集团第四工程有限公司 | Anti-floating construction method for metal square box cast-in-place concrete hollow floor slab |
-
2015
- 2015-12-23 CN CN201521089690.9U patent/CN205296522U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836597A (en) * | 2017-03-21 | 2017-06-13 | 中国航空规划设计研究总院有限公司 | A kind of cassette ceiling core fixing device and its construction method |
| CN106836597B (en) * | 2017-03-21 | 2019-02-26 | 中国航空规划设计研究总院有限公司 | A kind of fixed device of cassette ceiling core model and its construction method |
| CN107700728A (en) * | 2017-09-30 | 2018-02-16 | 沈阳建筑大学 | Easy connect band shear key reinforced concrete slab structure and connection method |
| CN114351926A (en) * | 2022-03-21 | 2022-04-15 | 中铁九局集团第四工程有限公司 | Anti-floating construction method for metal square box cast-in-place concrete hollow floor slab |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Fugen Inventor after: Qi Yanli Inventor after: Li Zhihong Inventor before: Wang Xinquan |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180517 Address after: 315010 four four, Ling Qiao Road, Haishu District, Ningbo, Zhejiang. Patentee after: ZHEJIANG NEW DAWN CONSTRUCTION Co.,Ltd. Address before: 310015 room 1901, unit 3, 3 Wanda Commercial Center, Gongshu District, Hangzhou, Zhejiang. Patentee before: HANGZHOU JIANGRUN TECHNOLOGY Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20211223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |