CN201158880Y - Pre-stress hollow slab filled with cast-in-situ light composite unit - Google Patents
Pre-stress hollow slab filled with cast-in-situ light composite unit Download PDFInfo
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- CN201158880Y CN201158880Y CNU2008200042983U CN200820004298U CN201158880Y CN 201158880 Y CN201158880 Y CN 201158880Y CN U2008200042983 U CNU2008200042983 U CN U2008200042983U CN 200820004298 U CN200820004298 U CN 200820004298U CN 201158880 Y CN201158880 Y CN 201158880Y
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- cast
- light
- assembled unit
- combined unit
- light material
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Abstract
The utility model relates to a cast-in-situs light combined unit filled prestressed hollow slab, which belongs to the normal building construction field. The cast-in-situs light combined unit filled prestressed hollow slab is composed of a light material combined unit, an upper layer reinforced bar, a lower layer reinforced bar, a prestressed bar, a hidden beam reinforced bar and concrete, wherein the light material combined unit is composed of a light tube and a connecting reinforced bar. The combined unit is arranged between the upper layer reinforced bar and the lower layer reinforced bar of the plate, and the direction of the combined unit tube is corresponding with the bending moment bigger direction in the plate. A hidden beam is arranged with a certain interval and the prestressed bar is integrally distributed in the hidden beam. The cast-in-situs plate combines the advantages of a prestressed structure and a hollow slab structure, the hollow ratio is higher, which is not only suitable for unidirectional plates, but also suitable for bidirectional plates, the construction is very convenient, and concrete one time pouring shaping also can be realized. The cast-in-situs plate has wide span, light weight and good acoustic baffling heat insulation effects, the earthquake resistance and the crack resistance of the structure are also better, and the cast-in-situs light combined unit filled prestressed hollow slab has good economy and adaptability.
Description
Affiliated technical field
The present invention relates to a kind of prestressed concrete cast-in-place hollow slab, belong to buildings in general structure field.
Background technology
At building field, along with the large-span concrete structure is increasing, increasing floor adopts prestressing force to fill the technology that combines with light material.Prestressed reinforced concrete construction can increase the span-depth radio of horizontal member, can improve deformation of members and cracking resistance and non-deformability simultaneously.Light material infill panel and solid slab structure specific energy mutually alleviate dead load.Present existing prestressed concrete cast-in-place hollow slab form has: (1) is by circular hollow tube; (2) by flake light material or flat.More than 2 kinds of form of structure certain limitation is all arranged when using.Though easy construction during the circular hollow tube concreting for the bad processing of the hollowcore slab of bidirectional stress, and is laid tubing during site operation and location institute is time-consuming more.Though the hollow rate of the hollowcore slab floor of being filled by flake light material or flat block is higher, also solve the problem of bidirectional stress simultaneously, it is also not too convenient to construct, concrete closely knit in order to guarantee, usually concreting at twice; Not only construction trouble influences concrete pouring quality toward contact.
Summary of the invention
The technical solution adopted for the present invention to solve the technical problems is: form the prestressed cored slab that a kind of cast-in-place light assembled unit is filled, it is made of light material assembled unit, top reinforcement, lower floor's reinforcing bar, presstressed reinforcing steel, dark beam steel and concrete, and wherein the light material assembled unit is made of lightweight tubing and connecting reinforcement.The cross-sectional form of each unit can be the composite figure of circle, broken line shape or rectangle and circular arc in the light material assembled unit that the present invention adopts, the soffit of tubing is designed to circular arc or broken line shape is for convenience concrete flowing, guarantees the one-time-concreting moulding.Adopt light material to fill and solve the problem that alleviates member dead weight, the necessary bulk density of light material is little, pollution-free, can be solid or hollow tubing.In the light material assembled unit, in order to improve hollow rate, spacing is got the minimum range that can guarantee coagulation scholar pouring quality between the tubing.By connecting reinforcement several lightweight tubing being combined in advance becomes a unit, is for convenience of site operation, prevents the tubing displacement.Dark beam is set is needs, can be used as line of demarcation again towards different adjacent assembled units for the arrangement prestress muscle; It is spacing that dark beam stirrup can carry out level to assembled unit, can also improve the shearing resistance and the anti-impact of plate simultaneously and cut ability.The light material assembled unit can laterally or vertically be placed; At the different loading characteristics of one-way slabs, and the force difference of two-way slab different directions with two-way slab, in the plate each assembled unit of different parts towards by plate stressed decision herein, the direction that the arranged direction of tubing and moment of flexure are bigger is consistent.Adopt prestressing technique to solve the large span problem, the presstressed reinforcing steel centralized arrangement has bonding or Non-cohesive Prestressing Force Technology according to the span of plate and the importance decision employing of structure in dark beam.
The cast-in-place plate of this kind is taken into account the advantage of prestressed structure and hollowcore slab structure, and hollow rate is higher, both has been suitable for one-way slabs, is suitable for two-way slab again, and it is very convenient to construct, and also realizes the moulding of concrete primary concreting.The cast-in-place span of slab of this kind is big, in light weight, sound insulation, good heat-insulation effect, and the shock resistance of structure, crack resistance are also better.The present invention has excellent economy and applicability.
Description of drawings
The present invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is a transverse cross-sectional view of the present invention.
Fig. 2 is the pie graph of light material assembled unit.
Fig. 3 is an individual unit cross-sectional configuration schematic diagram in the light material assembled unit.
Among the figure: 1. light material assembled unit, 2. top reinforcement, 3. lower floor's reinforcing bar, 4. presstressed reinforcing steel, 5. dark beam steel, 6. concrete, 7. light material tubing, 8. connecting reinforcement, 9. circle, the 10. composite figure of broken line shape, 11. rectangles and circular arc.
The specific embodiment
The present invention realizes in such a way:
1, produce light material tubing (7), the necessary bulk density of light material is little, pollution-free, can be solid or hollow.Light material tubing (7) cross-sectional form can be the composite figure (11) of circular (9), broken line shape (10) or rectangle and circular arc.By connecting reinforcement (8) several tubing are coupled together around light material tubing (7) border, form a light material assembled unit (1), connecting reinforcement (8) is the position of light material tubing (7) fixedly, and adjacent tubing spacing should meet the requirement that can guarantee concrete pouring quality in the same assembled unit simultaneously.
2, lower floor's reinforcing bar (3) of colligation hollowcore slab; Dark beam is set, the dark beam steel of colligation (5) in the plate.
3, filling with light material assembled unit (1) in each sub-district lattice that in plate, are separated by dark beam steel (5).Assembled unit can laterally or vertically be placed; Each assembled unit towards stressed decision by district's lattice inner panel, the arranged direction of tubing is consistent with the bigger direction of moment of flexure in the plate.
4, centralized arrangement presstressed reinforcing steel (4) in dark beam, decision is adopted as required bonding or unbonded prestressing tendon.
5, the top reinforcement of colligation hollowcore slab (2).
6, concreting (6).
Claims (5)
1, a kind of prestressed cored slab of cast-in-place light assembled unit filling, it is characterized in that it is made of light material assembled unit (1), top reinforcement (2), lower floor's reinforcing bar (3), presstressed reinforcing steel (4), dark beam steel (5) and concrete (6), wherein light material assembled unit (1) is made up of light material tubing (7) and connecting reinforcement (8).
2, according to the described prestressed cored slab of filling of claim 1, it is characterized in that it both had been applicable to one-way slabs, was applicable to two-way slab by the cast-in-place light assembled unit.
3,, it is characterized in that light material assembled unit (1) can be laterally or vertical placement according to the described prestressed cored slab of filling of claim 1 by the cast-in-place light assembled unit; Each assembled unit towards stressed decision by district's lattice inner panel, the arranged direction of tubing is consistent with the bigger direction of moment of flexure in the plate.
4,, it is characterized in that light material tubing (7) cross-sectional form can be the composite figure (11) of circular (9), broken line shape (10) or rectangle and circular arc according to the described prestressed cored slab of filling of claim 1 by the cast-in-place light assembled unit.
5, according to the described prestressed cored slab of being filled by the cast-in-place light assembled unit of claim 1, it is characterized in that being provided with in the plate dark beam, presstressed reinforcing steel (4) centralized arrangement is in dark beam; Used presstressed reinforcing steel (4) both can be a unbonded prestressing tendon, also can be bonded prestressed tendon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200042983U CN201158880Y (en) | 2008-01-29 | 2008-01-29 | Pre-stress hollow slab filled with cast-in-situ light composite unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200042983U CN201158880Y (en) | 2008-01-29 | 2008-01-29 | Pre-stress hollow slab filled with cast-in-situ light composite unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201158880Y true CN201158880Y (en) | 2008-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200042983U Expired - Fee Related CN201158880Y (en) | 2008-01-29 | 2008-01-29 | Pre-stress hollow slab filled with cast-in-situ light composite unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201158880Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107254930A (en) * | 2017-08-04 | 2017-10-17 | 徐焱 | A kind of wide cut hollow superimposed sheet |
| CN108265868A (en) * | 2016-12-30 | 2018-07-10 | 北京市第五建筑工程集团有限公司 | The construction method of light pipe combination block cast-in-place hollow slab |
-
2008
- 2008-01-29 CN CNU2008200042983U patent/CN201158880Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265868A (en) * | 2016-12-30 | 2018-07-10 | 北京市第五建筑工程集团有限公司 | The construction method of light pipe combination block cast-in-place hollow slab |
| CN107254930A (en) * | 2017-08-04 | 2017-10-17 | 徐焱 | A kind of wide cut hollow superimposed sheet |
| CN107254930B (en) * | 2017-08-04 | 2023-09-08 | 徐焱 | Broad-width hollow superimposed sheet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Xiangli Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081203 Termination date: 20100129 |