CN211200867U - Precast concrete superimposed sheet - Google Patents
Precast concrete superimposed sheet Download PDFInfo
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- CN211200867U CN211200867U CN201921747177.2U CN201921747177U CN211200867U CN 211200867 U CN211200867 U CN 211200867U CN 201921747177 U CN201921747177 U CN 201921747177U CN 211200867 U CN211200867 U CN 211200867U
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- sand grip
- superimposed sheet
- precast concrete
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Abstract
The utility model provides a precast concrete superimposed sheet belongs to building board technical field. This superimposed sheet includes the body of bar, this internal pre-buried netted reinforcing mesh of compriseing transverse reinforcement and longitudinal reinforcement that has, it goes up sand grip and lower sand grip to have one respectively on two parallel sides of body, the lower surface of going up the sand grip keeps level with the body lower surface, the upper surface of going up the sand grip keeps level with the body upper surface, it forms a pouring basin to go up between the upper surface of sand grip and the lower surface of sand grip down, interval between the lateral surface of two last sand grips on the body is less than the interval between the lateral surface of two lower sand grips. The utility model has the advantages of new and old concrete joint strength is high.
Description
Technical Field
The utility model belongs to the technical field of building board, a precast concrete superimposed sheet is related to.
Background
The laminated slab is an assembled integral floor slab formed by laminating prefabricated slabs and cast-in-place reinforced concrete layers. The composite floor slab has good integrity, the upper and lower surfaces of the slab are smooth, the decoration of a finish coat is convenient, and the composite floor slab is suitable for high-rise buildings and large-bay buildings with higher requirement on the integral rigidity. The laminated slab is widely applied to the building construction process, the construction period is greatly shortened due to the characteristic of convenient installation, various laminated slab forms exist in the applied technology in the existing market, the existing laminated slab adopts the mode that the convex ribs or the grooves are arranged on the surface layer, so that the connection strength between new concrete and old concrete is increased, however, a weak area with relatively weak strength is easily formed at the joint of the laminated slab, in addition, the anti-stripping strength between the new concrete and the old concrete is weak, and faults and gaps are easily formed between the new concrete and the old concrete.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a precast concrete superimposed sheet to the above-mentioned problem that prior art exists, the utility model aims to solve the technical problem that how to improve the joint strength of new and old concrete.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides a precast concrete superimposed sheet, its characterized in that, this superimposed sheet includes the body of bar, this internal pre-buried netted reinforcing mesh that comprises transverse reinforcement and longitudinal reinforcement that has, it goes up sand grip and lower sand grip to have one respectively on two parallel sides of body, the lower surface and the body lower surface of going up the sand grip keep level, the upper surface and the body upper surface of going up the sand grip keep level, it forms a pouring basin to go up between the upper surface of sand grip and the lower surface of sand grip down, interval between the lateral surface of sand grip is less than the interval between the lateral surface of two sand grips down on two on the body.
After a plurality of superimposed sheets tile, form a T type groove between the adjacent superimposed sheet, the cooperation is newly poured the concrete on the superimposed sheet upper strata, makes new concrete form a T type strip between adjacent superimposed sheet, and between the adjacent superimposed sheet of this T type strip embedding, the joint strength who makes between new and old concrete improves greatly, cooperates horizontal reinforcing bar, makes the possibility greatly reduced of layering between new concrete and the superimposed sheet.
This coincide plate simple structure, utilize in the handling stock insert the casting trough can, lay the precision height, construction convenience.
Because this superimposed sheet upper strata and lower floor are straight face, stability is high when coincide storage superimposed sheet, compares traditional superimposed sheet and has better practicality.
In the precast concrete superimposed sheet, two ends of the transverse reinforcing steel bar are respectively positioned in the two casting grooves.
In the precast concrete composite slab described above, the end portions of the lateral reinforcing bars extend out of the lower protruding strips.
Can strike to the tilt state through the tip with horizontal reinforcing bar, make and to tie up fixedly through the bundle silk between the horizontal reinforcing bar of adjacent superimposed sheet to improve floor intensity.
Drawings
Fig. 1 is a schematic perspective view of the stacked plate after being laid.
In the figure, 1, a body; 2. transverse reinforcing steel bars; 3. longitudinal reinforcing steel bars; 41. upward convex strips; 42. a lower convex strip; 5. and (4) pouring a trough.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, the composite slab includes a strip-shaped body 1, a mesh-shaped reinforcing mesh composed of transverse steel bars 2 and longitudinal steel bars 3 is pre-embedded in the body 1, two parallel side edges of the body 1 are respectively provided with an upper protruding strip 41 and a lower protruding strip 42, the lower surface of the upper protruding strip 41 is flush with the lower surface of the body 1, the upper surface of the upper protruding strip 41 is flush with the upper surface of the body 1, a casting groove 5 is formed between the upper surface of the upper protruding strip 41 and the lower surface of the lower protruding strip 42, and the distance between the outer side surfaces of the two upper protruding strips 41 on the body 1 is smaller than the distance between the outer side surfaces of the two lower protruding strips 42.
After a plurality of superimposed sheets tiled, form a T type groove between the adjacent superimposed sheet, the cooperation is newly poured the concrete on the superimposed sheet upper strata, makes new concrete form a T type strip between adjacent superimposed sheet, and between the adjacent superimposed sheet of this T type strip embedding, the joint strength who makes between new and old concrete improves greatly, cooperates horizontal reinforcing bar 2, makes the possibility greatly reduced of layering between new concrete and the superimposed sheet.
This coincide plate simple structure, utilize in the handling stock insert the casting groove 5 can, lay the precision height, construction convenience.
Because this superimposed sheet upper strata and lower floor are straight face, stability is high when coincide storage superimposed sheet, compares traditional superimposed sheet and has better practicality.
The mode of this superimposed sheet side fluting still is favorable to the processing such as flattening, external and the recasting of floor limit portion.
Two ends of the transverse steel bar 2 are respectively positioned in the two casting grooves 5. The end of the transverse bar 2 extends beyond the lower rib 42. Can make and tie up fixedly through the bundle silk between the horizontal reinforcing bar 2 of adjacent superimposed sheet through knocking the tip of horizontal reinforcing bar 2 to the tilt state to improve floor intensity.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (3)
1. The utility model provides a precast concrete superimposed sheet, its characterized in that, this superimposed sheet include body (1) of bar, pre-buried netted reinforcing mesh of constituteing by transverse reinforcement (2) and longitudinal reinforcement (3) in body (1), have one respectively on two parallel sides of body (1) and go up sand grip (41) and lower sand grip (42), the lower surface and body (1) lower surface of going up sand grip (41) keep level, the upper surface and body (1) upper surface of going up sand grip (41) keep level, it forms a pouring basin (5) to go up between the upper surface of sand grip (41) and the lower surface of sand grip (42) down, the interval between the lateral surface of two last sand grip (41) on body (1) is less than the interval between the lateral surface of two lower sand grip (42).
2. Precast concrete composite slab according to claim 1, characterized in that both ends of the transversal reinforcement (2) are located in two casting grooves (5), respectively.
3. Precast concrete composite slab according to claim 1 or 2, characterized in that the ends of the transversal bars (2) protrude beyond the lower ribs (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921747177.2U CN211200867U (en) | 2019-10-17 | 2019-10-17 | Precast concrete superimposed sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921747177.2U CN211200867U (en) | 2019-10-17 | 2019-10-17 | Precast concrete superimposed sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211200867U true CN211200867U (en) | 2020-08-07 |
Family
ID=71852691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921747177.2U Active CN211200867U (en) | 2019-10-17 | 2019-10-17 | Precast concrete superimposed sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211200867U (en) |
-
2019
- 2019-10-17 CN CN201921747177.2U patent/CN211200867U/en active Active
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