CN202787600U - Concrete laminated slab floorslab with anti-shearing key and prefabricated structure thereof - Google Patents
Concrete laminated slab floorslab with anti-shearing key and prefabricated structure thereof Download PDFInfo
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- CN202787600U CN202787600U CN 201220390022 CN201220390022U CN202787600U CN 202787600 U CN202787600 U CN 202787600U CN 201220390022 CN201220390022 CN 201220390022 CN 201220390022 U CN201220390022 U CN 201220390022U CN 202787600 U CN202787600 U CN 202787600U
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Abstract
The utility model relates to the field of fabricated concrete construction, in particular to a concrete laminated slab floorslab with an anti-shearing key and a prefabricated structure of the concrete laminated slab floorslab with the anti-shearing key. The produced concrete laminated slab floorslab can be as a floorslab in the fabricated concrete construction. The floorslab is formed by a prefabricated reinforced concrete bottom slab, a prefabricated concrete anti-shearing key and a cast-in-place reinforced concrete layer, the section of the concrete anti-shearing key is designed to be H-shaped, ring-shaped, hexagon-shaped or of other shapes having anti-shearing functions, one end of the anti-shearing key is buried in the prefabricated bottom slab, and the other end of the anti-shearing key is buried in the cast-in-place layer. When the cast-in-place layer is manufactured, concrete is poured on the top of the anti-shearing key or above the top of the anti-shearing key. The prefabricated reinforced concrete bottom slab and the cast-in-place reinforced concrete layer are connected into a whole floorslab through the anti-shearing key, the shearing force and the drawing force between the prefabricated reinforced concrete bottom slab and the cast-in-place reinforced concrete layer are borne by the anti-shearing key. According to the concrete laminated slab floorslab with the anti-shearing key, the using amount of steel reinforcement connecting with the prefabricated reinforced concrete bottom slab and the cast-in-place reinforced concrete layer is effectively reduced, and thickness of the laminated slab floorslab is reduced.
Description
Technical field
The utility model relates to the assembly concrete building field, is specially a kind of concrete folding plate floor with shear key and prefabricated structure thereof, and the concrete folding plate floor of production can be used as the floor of using in the assembly concrete building.
Background technology
At present, in the concrete construction of practical set formula, what floor was generally used is composite slab by steel bar truss and concrete.This superimposed sheet forms (hereinafter to be referred as in-situ layer) by prefabricated reinforced concrete base plate (hereinafter to be referred as prefabricated panel) and cast-in-situ steel reinforced concrete layer, prefabricated panel is except the normal configuration reinforcement, the bending type fine steel rib truss of also joining the protruding plate face, this truss couples together the levels reinforcing bar of concrete floor, bears to make the mutually shearing of the changing of the relative positions and the mutually pulling force of disengaging between prefabricated panel and in-situ layer.Since prefabricated and be connected part and adopt the steel truss muscle to connect, amount of reinforcement increased, being connected with the reliable of cast-in-place part for assurance is prefabricated simultaneously, the steel truss muscle of employing is higher, causes floor thicker, and construction costs is higher.
The utility model content
The purpose of this utility model provides a kind of concrete folding plate floor with shear key and prefabricated structure thereof, can reduce amount of reinforcement, reduces slab thickness, and with the same engineering demands of composite slab by steel bar truss and concrete floor.
For achieving the above object, the technical solution of the utility model is:
A kind of concrete folding plate floor with shear key, this concrete folding plate floor comprises in-situ layer setting up and down and prefabricated panel, is provided with shear key at prefabricated panel, prefabricated panel is connected with in-situ layer by shear key, forms the strong bonded structure.
Described concrete folding plate floor with shear key, according to shearing and pulling force that the shear key needs bear, shear key is uniformly distributed on the prefabricated panel.
Described concrete folding plate floor with shear key, the Cross section Design of shear key be I shape, circular ring type, hexagonal or other play the shape of shearing resistance effect.
Described concrete folding plate floor with shear key, shear key one end is embedded in the prefabricated panel, and the other end is embedded in in-situ layer.
Described concrete folding plate floor with shear key, shear key are that plain concrete or plain concrete add vertical core muscle making, and extend upwardly to the in-situ layer end face, extend the prefabricated panel bottom surface downwards.
The prefabricated structure of described concrete folding plate floor with shear key, this prefabricated structure comprises presses beam, side steel form, the thick steel form in bottom surface, floor reinforcement, shear key and side steel form are set on the thick steel form in bottom surface, the side steel form is arranged on the periphery of floor reinforcement and shear key, and shear key is by pressing beam to be fixed on the thick steel form in bottom surface.
The prefabricated structure of described concrete folding plate floor with shear key presses beam to adopt shaped steel to press beam, steel tube concrete soil pressure beam or other forms to press beam, presses beam to be provided with attached steel bushing, the corresponding coupling with shear key of attached steel bushing.
The prefabricated structure of described concrete folding plate floor with shear key presses the beam two ends to be connected and fixed by the thick steel form of set bolt and bottom surface.
After adopting such scheme, the utlity model has following characteristics and effect:
1. the concrete folding plate floor of the utility model band shear key, this floor is comprised of prefabricated reinforced concrete base plate (hereinafter to be referred as prefabricated panel), precast concrete shear key (hereinafter to be referred as shear key) and cast-in-situ steel reinforced concrete layer (hereinafter to be referred as in-situ layer), and the prefabricated panel of superimposed sheet floor is connected shear key to connect with in-situ layer; The Cross section Design of shear key be I shape, circular ring type, hexagonal or other play the shape of shearing resistance effect, when making prefabricated panel, the part of shear key is embedded in the prefabricated panel, another part exposes; When making in-situ layer, with concrete casting to the top of shear key or more than the top.Like this, by shear key prefabricated panel and in-situ layer are connected into whole floor, bear shearing and pulling force between prefabricated panel and in-situ layer by shear key.
2. the utility model shear key adds vertical core muscle making by plain concrete or plain concrete, and upwards can extend the in-situ layer end face, can extend the prefabricated panel bottom surface downwards, therefore can reduce amount of reinforcement, reduces thickness of slab.
Description of drawings
Fig. 1 is the precast concrete base plate plane figure behind the layout shear key of the present utility model.
Fig. 2 is that Fig. 1 is along the sectional drawing of A-A direction.
Fig. 3 is that Fig. 1 is along the sectional drawing of B-B direction.
Fig. 4 is the schematic perspective view of shear key.
Fig. 5 is the superimposed sheet plan view that forms behind the precast concrete base plate upper concrete behind the layout shear key.
Fig. 6 is that Fig. 5 is along the sectional drawing of C-C direction.
Fig. 7 is that Fig. 5 is along the sectional drawing of D-D direction.
Fig. 8 is the plan view of arranging on the shear key of Fig. 1 behind the steel tube concrete soil pressure beam.
Fig. 9 is steel tube concrete soil pressure beam sectional drawing along its length.
Among the figure, 1. shear key (precast concrete shear key); 2. prefabricated panel; 3. in-situ layer; 4. set bolt; 5. pressure beam; 6. side steel form; 7. the thick steel form in bottom surface; 8. attached steel bushing.
The specific embodiment
Shown in Fig. 1-4, the utility model is provided with shear key 1 at prefabricated panel 2, and according to shearing and pulling force that shear key 1 needs bear, shear key 1 is uniformly distributed on the prefabricated panel 2.Wherein, the Cross section Design of shear key 1 is I shape (Fig. 2-4); Perhaps, shear key 1 can be circular ring type, hexagonal or other shapes.
Shown in Fig. 5-7, the concrete folding plate floor of the utility model band shear key mainly comprises in-situ layer setting up and down 3 and prefabricated panel 2, and prefabricated panel 2 is provided with shear key 1, prefabricated panel 2 is connected with in-situ layer 3 by shear key 1, forms the strong bonded structure.Shear key 1 one ends are embedded in the prefabricated panel, and the other end is embedded in in-situ layer.
Shown in Fig. 8-9, the prefabricated structure of the concrete folding plate floor of the utility model band shear key, mainly comprise set bolt 4, press beam 5, side steel form 6, the thick steel form 7 in bottom surface, attached steel bushing 8 etc., concrete structure is as follows: on the thick steel form 7 in bottom surface floor reinforcement, shear key 1 and side steel form 6 are set, side steel form 6 is arranged on the periphery of floor reinforcement and shear key 1, and shear key 1 is by pressing beam 5 fixing; Press beam 5 to be provided with attached steel bushing 8(Fig. 9), attached steel bushing 8 and shear key 1 corresponding coupling press beam 5 two ends to be connected and fixed by set bolt 4 and the thick steel form 7 in bottom surface.
In the utility model, press material and the shape of beam unrestricted.In the present embodiment, press beam can adopt steel tube concrete soil pressure beam, by firm being connected of steel tube concrete soil pressure beam with the thick steel form 7 in bottom surface, can be preferably fixing shear key position.
Shown in Fig. 8-9, the job practices of the concrete folding plate floor of the utility model band shear key is as follows:
(1) thick steel form 7 is arranged the floor reinforcement in the bottom surface;
(2) shearing and the pulling force that bear according to the shear key needs are evenly arranged in shear key 1 on the thick steel form 7 in bottom surface, according to the size of prefabricated panel 2, in the periphery of floor reinforcement and shear key 1 side steel form 6 are set;
(3) with pressing beam 5 to be pressed in the end face of shear key 1, and the summit portion that makes shear key 1 is in attached steel bushing 8, to prevent when the fluid concrete shear key 1 lateral sliding;
(4) will press the end of beam 5 to be fixed on the thick steel form 7 in bottom surface with set bolt 4, fluid concrete is to the thickness of prefabricated panel 2; When making prefabricated panel, the part of shear key is embedded in the prefabricated panel, another part exposes;
When (5) concrete to be cast reaches the intensity that needs, remove set bolt 4, remove and press beam 5, form the prefabricated panel 2 with shear key shown in Figure 1;
(6) after the building site will be located with the prefabricated panel of shear key, then arrange reinforcing bar in the above, fluid concrete forms in-situ layer 3, the final superimposed sheet that forms with shearing resistance, as shown in Figure 5.
When making in-situ layer, with concrete casting to the top of shear key or more than the top.That is to say that shear key can be selected to reveal the top or not reveal the top as required.
Embodiment result shows, the concrete folding plate floor of the utility model band shear key, prefabricated structure and job practices, by shear key precast concrete base plate and cast-in-situ concrete layer are connected into whole floor, bear shearing and pulling force between the two by the anti-shear concrete key.This superimposed sheet floor can effectively reduce the amount of reinforcement that connects prefabricated reinforced concrete base plate and cast-in-situ concrete layer, reduces the thickness of slab of superimposed sheet floor.
Claims (8)
1. concrete folding plate floor with shear key, it is characterized in that: this concrete folding plate floor comprises in-situ layer setting up and down and prefabricated panel, be provided with shear key at prefabricated panel, prefabricated panel is connected with in-situ layer by shear key, forms the strong bonded structure.
2. according to the concrete folding plate floor with shear key claimed in claim 1, it is characterized in that: according to shearing and pulling force that the shear key needs bear, shear key is uniformly distributed on the prefabricated panel.
3. according to the concrete folding plate floor with shear key claimed in claim 1, it is characterized in that: the Cross section Design of shear key be I shape, circular ring type, hexagonal or other play the shape of shearing resistance effect.
4. according to the concrete folding plate floor with shear key claimed in claim 1, it is characterized in that: shear key one end is embedded in the prefabricated panel, and the other end is embedded in in-situ layer.
5. according to the concrete folding plate floor with shear key claimed in claim 1, it is characterized in that: shear key is that plain concrete or plain concrete add vertical core muscle making, and extends upwardly to the in-situ layer end face, extends the prefabricated panel bottom surface downwards.
6. according to the prefabricated structure of the concrete folding plate floor with shear key claimed in claim 1, it is characterized in that: this prefabricated structure comprises presses beam, side steel form, the thick steel form in bottom surface, floor reinforcement, shear key and side steel form are set on the thick steel form in bottom surface, the side steel form is arranged on the periphery of floor reinforcement and shear key, and shear key is by pressing beam to be fixed on the thick steel form in bottom surface.
7. according to the prefabricated structure of the concrete folding plate floor with shear key claimed in claim 6, it is characterized in that: press beam to adopt steel tube concrete soil pressure beam, shaped steel to press beam or other forms to press beam, press beam to be provided with attached steel bushing, the corresponding coupling with shear key of attached steel bushing.
8. according to the prefabricated structure of the concrete folding plate floor with shear key claimed in claim 6, it is characterized in that: press the beam two ends to be connected and fixed by the thick steel form of set bolt and bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220390022 CN202787600U (en) | 2012-08-08 | 2012-08-08 | Concrete laminated slab floorslab with anti-shearing key and prefabricated structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220390022 CN202787600U (en) | 2012-08-08 | 2012-08-08 | Concrete laminated slab floorslab with anti-shearing key and prefabricated structure thereof |
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| Publication Number | Publication Date |
|---|---|
| CN202787600U true CN202787600U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220390022 Expired - Fee Related CN202787600U (en) | 2012-08-08 | 2012-08-08 | Concrete laminated slab floorslab with anti-shearing key and prefabricated structure thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839773A (en) * | 2012-08-08 | 2012-12-26 | 沈阳建筑大学 | Concrete composite slab floorslab with shear key and prefabricated construction and construction method |
| CN114687474A (en) * | 2022-04-18 | 2022-07-01 | 上海应用技术大学 | Box-type steel connecting structure and method for assembled concrete shear wall |
-
2012
- 2012-08-08 CN CN 201220390022 patent/CN202787600U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839773A (en) * | 2012-08-08 | 2012-12-26 | 沈阳建筑大学 | Concrete composite slab floorslab with shear key and prefabricated construction and construction method |
| CN114687474A (en) * | 2022-04-18 | 2022-07-01 | 上海应用技术大学 | Box-type steel connecting structure and method for assembled concrete shear wall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20150808 |
|
| EXPY | Termination of patent right or utility model |