CN214062168U - Precast concrete stair structure - Google Patents
Precast concrete stair structure Download PDFInfo
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- CN214062168U CN214062168U CN202022891512.5U CN202022891512U CN214062168U CN 214062168 U CN214062168 U CN 214062168U CN 202022891512 U CN202022891512 U CN 202022891512U CN 214062168 U CN214062168 U CN 214062168U
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Abstract
The utility model discloses a precast concrete stair structure, include: the inner side of the outer wall is poured to form a bracket; the inner partition wall is arranged opposite to the outer wall, and a cast-in-place platform plate is poured on the inner partition wall; the prefabricated bench plate is provided with a first end facing the outer wall and a second end facing the inner partition wall, and the second end of the prefabricated bench plate is installed on the cast-in-place platform plate; and the composite platform plate comprises an upper cast-in-place layer and a lower prefabricated layer which are overlapped together, the first end of the prefabricated bench plate extends to form the lower prefabricated layer, and the lower prefabricated layer is installed on the bracket. The utility model provides a current prefabricated staircase flight board, need cast-in-place rest platform board when the assembly, problem that the efficiency of construction is low.
Description
Technical Field
The utility model relates to a construction technical field, concretely relates to precast concrete stair structure.
Background
The precast concrete stair is a very common precast element in the fabricated building, and compared with the traditional cast-in-place stair, the precast concrete stair reduces partial procedures and time required by on-site formwork support, reinforcement binding and watering maintenance, saves labor and time cost, and achieves the purpose of environmental protection while ensuring the appearance and quality.
However, the existing prefabricated staircase only comprises the stair section plates, only the stair section plates are fully prefabricated, the rest platform plate of the staircase still adopts cast-in-place pouring, and all the prefabricated staircase needs cast-in-place rest platform plates during assembly, so that the requirement of efficient construction cannot be met.
SUMMERY OF THE UTILITY MODEL
For overcoming the defect that prior art exists, provide a precast concrete stair structure now to solve current prefabricated staircase flight board, need cast-in-place rest platform board when the assembly, problem that the efficiency of construction is low.
In order to achieve the above object, there is provided a precast concrete stair structure comprising:
the inner side of the outer wall is poured to form a bracket;
the inner partition wall is arranged opposite to the outer wall, and a cast-in-place platform plate is poured on the inner partition wall;
the prefabricated bench plate is provided with a first end facing the outer wall and a second end facing the inner partition wall, and the second end of the prefabricated bench plate is installed on the cast-in-place platform plate; and
composite platform board, including superimposed cast-in-place layer and lower prefabricated layer on going up together, the first end of prefabricated bench board extends and forms prefabricated layer down, prefabricated layer install in down on the bracket.
Furthermore, a wet joint is formed between one end, far away from the prefabricated bench slab, of the lower prefabricated layer and the outer wall, a first anchoring rib is embedded in the upper cast-in-place layer, the first anchoring rib extends into the wet joint, concrete is poured in the wet joint, and the concrete covers the first anchoring rib.
Furthermore, a first embedded part is embedded in the inner side of the outer wall, a second embedded part is embedded in the upper surface of the lower prefabricated layer, and the first embedded part is connected to the second embedded part through a connecting plate.
Further, the connecting plate includes first flange board and connect in the second flange board of first flange board, first flange board with the second flange board is the angle setting, first flange board connect in first built-in fitting, the second flange board connect in the second built-in fitting.
Furthermore, the first flange plate is attached to the first embedded part and is connected to the first embedded part through bolts.
Furthermore, the second flange plate is attached to the second embedded part and is connected to the second embedded part through bolts.
Furthermore, a second anchoring rib is embedded in the outer wall, and one end, far away from the outer wall, of the second anchoring rib is embedded in the upper cast-in-place layer.
Further, the lower prefabricated layer and a leveling layer is arranged between the brackets in a cushioning mode.
The utility model has the advantages that the prefabricated concrete stair structure of the utility model places the lower prefabricated layer of the first end of the prefabricated stair section plate on the bracket of the outer wall, cancels the arrangement of one stair beam of the traditional prefabricated stair structure, simplifies the construction process on site and accelerates the construction progress; the utility model discloses a lower floor of precast concrete stair structure composite platform board is prefabricated part, has improved the prefabrication rate. In addition, the arrangement of a ladder beam of the traditional prefabricated staircase structure is omitted, the clearance height of the staircase is increased, and the requirement of the prefabricated staircase on the specification of the clearance height of the staircase which is possibly generated is effectively met.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is the utility model discloses precast concrete stair structure's of embodiment structural schematic.
Fig. 2 is the utility model discloses composite platform board and outer wall bracket connected node's schematic structure diagram.
Fig. 3 is a first schematic structural diagram of the prefabricated bench slab of the embodiment of the present invention.
Fig. 4 is a second schematic structural diagram of the prefabricated bench slab of the embodiment of the present invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 is the utility model discloses precast concrete stair structure's schematic structure diagram, fig. 2 do the utility model discloses a composite platform board and outer wall bracket connected node's schematic structure diagram, fig. 3 do the utility model discloses a prefabricated bench board's a schematic structure diagram, fig. 4 are the utility model discloses a prefabricated bench board's a second kind of schematic structure diagram.
Referring to fig. 1 to 4, the utility model provides a precast concrete stair structure, include: the prefabricated building block comprises an outer wall 1, an inner partition wall 1, a prefabricated bench board 3 and a composite platform board 4.
Wherein, the inner partition wall 1 is arranged opposite to the outer wall 1. And the bracket 11 is formed by casting on the inner side of the outer wall 1.
The inner partition wall 1 is cast with a cast-in-place platform plate 21. The cast-in-place platform plate is arranged on one side of the inner partition wall facing the outer wall. The bracket and the cast-in-place platform plate are arranged in a staggered mode so as to install the prefabricated bench slab.
Specifically, a connecting wall is connected between the inner partition wall and the outer wall, the connecting wall is poured to form a cantilever ladder beam, and a cast-in-place platform plate is poured between the ladder beam and the inner partition wall.
The prefabricated bench slab 3 has a first end facing the outer wall 1 and a second end facing the inner partition wall 1. The second end of the prefabricated bench slab 3 is mounted to the cast-in-place deck slab 21.
The composite deck slab 4 comprises an upper cast-in-place layer 41 and a lower prefabricated layer 4. The upper cast-in-place layer 41 and the lower prefabricated layer 4 are laminated together. The first end of the prefabricated bench slab 3 is extended to form a lower prefabricated layer 42. The lower preform layer 42 is mounted on the corbel 11.
Referring to fig. 3 and 4, the prefabricated bench has two forms. With continued reference to fig. 3, the first end of the prefabricated bench slab is the upper end and the second end of the prefabricated bench slab is the lower end. The upper end of the prefabricated bench slab extends towards the bracket of the outer wall to form a lower prefabricated layer. With continued reference to fig. 4, the first end of the prefabricated bench slab is the lower end and the second end of the prefabricated bench slab is the upper end. The lower end of the prefabricated bench slab extends towards the bracket of the outer wall to form a lower prefabricated layer.
The prefabricated concrete stair structure of the utility model places the lower prefabricated layer of the first end of the prefabricated stair section plate on the bracket of the outer wall, cancels the arrangement of one stair beam of the traditional prefabricated stair structure, simplifies the construction process on site and accelerates the construction progress; the utility model discloses a lower floor of precast concrete stair structure composite platform board is prefabricated part, has improved the prefabrication rate. In addition, the arrangement of a ladder beam of the traditional prefabricated staircase structure is omitted, the clearance height of the staircase is increased, and the requirement of the prefabricated staircase on the specification of the clearance height of the staircase which is possibly generated is effectively met.
As shown in fig. 2, a leveling layer 7 is padded between the lower prefabricated layer 42 and the bracket 11. When the prefabricated bench slab is assembled on the bracket, a mortar leveling layer is poured on the bracket, and the lower prefabricated layer at the first end of the prefabricated bench slab is placed on the leveling layer.
A wet joint is formed between the end of the lower precast layer 42 remote from the precast bench slab 3 and the outer wall 1. The upper cast-in-place layer 41 has a first anchoring rib 411 embedded therein. The first end of the first anchoring rib connects the main rib of the prefabricated bench slab and the second end of the first anchoring rib 411 extends into the wet joint. Concrete 5 is poured in the wet joint. The concrete 5 is coated on the first anchoring rib 411.
As a preferred embodiment, a first embedded part is embedded in the inner side of the outer wall 1. And a second embedded part is embedded in the upper surface of the lower prefabricated layer 42. The first embedded part is connected to the second embedded part through a connecting plate 6.
Specifically, the connecting plate 6 includes a first flange plate 61 and a second flange plate 62. The second flange plate 62 is connected to the first flange plate 61, and the first flange plate 61 and the second flange plate 62 are disposed at an angle. The first flange plate 61 is connected to the first embedment. The second flange plate 62 is connected to the second embedment.
The first flange plate 61 is attached to the first embedded part and is bolted to the first embedded part. The second flange plate 62 is attached to the second embedment, and is bolted to the second embedment.
As a preferred embodiment, threaded sleeves are embedded in the outer wall and the lower prefabricated layer respectively. The first embedded part and the second embedded part are respectively provided with a first through hole of the threaded sleeve corresponding to the aligning position. The first flange plate and the second flange plate are respectively provided with second through holes aligned with the first through holes. The bolt penetrates through the second through hole of the first flange plate and the first through hole of the first embedded part and is screwed in the threaded sleeve, so that the first flange plate is fixedly locked on the inner side of the outer wall. Correspondingly, the bolt is arranged in the second through hole of the second flange plate and the first through hole of the second embedded part in a penetrating mode and is screwed in the threaded sleeve, so that the second flange plate is fixedly locked on the upper surface of the lower prefabricated layer.
A second anchoring rib 13 is embedded in the outer wall 1, and one end, far away from the outer wall, of the second anchoring rib 13 is embedded in the upper cast-in-place layer 41. In this embodiment, the second anchoring rebars are connected to the rebars of the prefabricated bench slab.
After the connecting plate is connected with the outer wall and the lower prefabricated layer, the first anchoring ribs extend into the wet joint and are connected with the steel bars of the prefabricated bench boards, and the second anchoring ribs are connected with the steel bars of the prefabricated bench boards, concrete is poured in the wet joint and on the lower prefabricated layer to form an upper cast-in-place layer.
And (3) continuously using a conventional method for the second end of the prefabricated ladder section plate, embedding vertical steel bars on the ladder beam, arranging a reserved hole at the second end of the ladder section plate, sleeving the reserved hole into the vertical steel bars, and then pouring grouting material into the reserved hole to form a fixed hinge support.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (8)
1. A precast concrete stair structure, comprising:
the inner side of the outer wall is poured to form a bracket;
the inner partition wall is arranged opposite to the outer wall, and a cast-in-place platform plate is poured on the inner partition wall;
the prefabricated bench plate is provided with a first end facing the outer wall and a second end facing the inner partition wall, and the second end of the prefabricated bench plate is installed on the cast-in-place platform plate; and
composite platform board, including superimposed cast-in-place layer and lower prefabricated layer on going up together, the first end of prefabricated bench board extends and forms prefabricated layer down, prefabricated layer install in down on the bracket.
2. The precast concrete stair structure of claim 1, wherein a wet joint is formed between one end of the lower precast layer, which is far away from the precast stair section plates, and the outer wall, a first anchoring rib is embedded in the upper cast-in-place layer, the first anchoring rib extends into the wet joint, concrete is cast in the wet joint, and the concrete is coated on the first anchoring rib.
3. The precast concrete stair structure according to claim 1, wherein a first embedded part is embedded in the inner side of the outer wall, a second embedded part is embedded in the upper surface of the lower precast layer, and the first embedded part is connected to the second embedded part through a connecting plate.
4. The precast concrete stair structure of claim 3, wherein the connecting plate comprises a first flange plate and a second flange plate connected to the first flange plate, the first flange plate being disposed at an angle to the second flange plate, the first flange plate being connected to the first embedment, the second flange plate being connected to the second embedment.
5. The precast concrete stair structure of claim 4, wherein the first flange plate is fitted to the first embedment and bolted to the first embedment.
6. The precast concrete stair structure of claim 4, wherein the second flange plate is fitted to and bolted to the second embedment.
7. The precast concrete stair structure according to claim 1, wherein a second anchoring rib is embedded in the outer wall, and one end of the second anchoring rib, which is far away from the outer wall, is embedded in the upper cast-in-place layer.
8. The precast concrete stair structure of claim 1, wherein a leveling layer is padded between the lower precast layer and the corbels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022891512.5U CN214062168U (en) | 2020-12-02 | 2020-12-02 | Precast concrete stair structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022891512.5U CN214062168U (en) | 2020-12-02 | 2020-12-02 | Precast concrete stair structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214062168U true CN214062168U (en) | 2021-08-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022891512.5U Active CN214062168U (en) | 2020-12-02 | 2020-12-02 | Precast concrete stair structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214062168U (en) |
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2020
- 2020-12-02 CN CN202022891512.5U patent/CN214062168U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230106 Address after: 100031, 28, Fuxing Avenue, Xicheng District, Beijing Patentee after: Zhou Huimin Address before: 100045 1204-a, 12 / F, building 1, A2 Fuxingmenwai street, Xicheng District, Beijing Patentee before: Jinmaohuichuang construction technology (Beijing) Co.,Ltd. |
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| TR01 | Transfer of patent right |