CN212743203U - High-strength concrete prefabricated staircase - Google Patents
High-strength concrete prefabricated staircase Download PDFInfo
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- CN212743203U CN212743203U CN202021248154.XU CN202021248154U CN212743203U CN 212743203 U CN212743203 U CN 212743203U CN 202021248154 U CN202021248154 U CN 202021248154U CN 212743203 U CN212743203 U CN 212743203U
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- floor
- prefabricated staircase
- groove
- concrete prefabricated
- strength concrete
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Abstract
The utility model relates to a high strength concrete prefabricated staircase, it includes stair body and floor platform, and the both ends of stair body length direction are provided with horizontal floor outrigger respectively, and the floor outrigger offsets with the floor platform, and floor platform upper surface is provided with the subsider that is convenient for floor outrigger to support into, is provided with two extension side pipes in the subsider, and the end wall of each extension side pipe length direction is provided with the joint board; the upper surface of the floor cantilever beam is provided with a yielding groove which is convenient for the extension square tube and the clamping plate to simultaneously abut into. The utility model discloses have the joint strength who improves floor outrigger and floor platform, guarantee prefabricated staircase stability in use's effect.
Description
Technical Field
The utility model belongs to the technical field of the prefabricated staircase technique and specifically relates to a high strength concrete prefabricated staircase is related to.
Background
At present, the prefabricated staircase is a staircase structure formed by pouring reinforcing steel bars and concrete. Compared with the traditional concrete cast-in-place stair, the concrete cast-in-place stair has the characteristics of convenience in installation and high forming speed, and is widely applied to building construction sites.
The existing Chinese patent with publication number CN204098374U provides a prefabricated twin stair, which comprises a prefabricated stair body. The both ends of prefabricated staircase body length direction are provided with the upper floor ladder beam respectively perpendicularly and choose the ear and the ear is chosen to lower floor's floor ladder beam, and the two can offset with upper and lower floor platform, and then so that the platform of two-layer floor about the prefabricated staircase body connects simultaneously.
The above prior art solutions have the following drawbacks: most of the floor cantilever beams are bonded by filling joints with concrete after being abutted against the floor platforms, and when the ground shell is changed, the connection stability between the floor cantilever beams and the floor platforms is difficult to guarantee, so that the loosening speed of the prefabricated staircase and the floor platforms is increased, and the improvement is needed.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a high strength concrete prefabricated staircase, its joint strength who has improvement floor outrigger and floor platform ensures prefabricated staircase stability in use's advantage.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a high-strength concrete prefabricated staircase comprises a staircase body and a floor platform, wherein horizontal floor outriggers are respectively arranged at two ends of the staircase body in the length direction and abut against the floor platform, a settling tank convenient for the floor outriggers to abut into is arranged on the upper surface of the floor platform, two extension square pipes are arranged in the settling tank, and a clamping plate is arranged on the end wall of each extension square pipe in the length direction; the floor outrigger upper surface runs through and is provided with the groove of stepping down that is convenient for extend side pipe and joint board to push into simultaneously.
By adopting the technical scheme, the two ends of the settling tank in the length direction are arranged in a closed manner, when the floor cantilever beam is propped into the inner cavity of the settling tank, the two ends of the floor cantilever beam in the length direction and one side of the floor cantilever beam in the width direction are propped against the side wall of the inner floor platform at the same time, the position of the floor cantilever beam is limited, and the position stability of the erected stair body can be effectively guaranteed; the extension side pipe with the clamping plate can be propped into the inner cavity of the abdicating groove, so that powerful counter-pulling acting force is formed between the floor platform and the floor cantilever beam, the connection strength between the floor cantilever beam and the floor platform is greatly improved, and the use stability of the stair body is ensured.
The present invention may be further configured in a preferred embodiment as: the one end that the stair body direction was kept away from to the floor outrigger is provided with two limiting plates, floor platform upper surface just is located subsider department and is provided with the extension groove that the limiting plate of being convenient for passed.
By adopting the technical scheme, after the limiting plate is abutted into the inner cavity of the extension groove, the position of one side of the width direction of the floor cantilever beam is limited, the phenomenon that the floor cantilever beam slides along the length direction of the settlement groove is reduced, and the position stability of the floor cantilever beam in the settlement groove is ensured.
The present invention may be further configured in a preferred embodiment as: and a connecting column is arranged between the limiting plate and the floor platform.
Through adopting above-mentioned technical scheme, the spliced pole runs through the limiting plate and extends to inside the floor platform, and it makes limiting plate and floor platform be connected for a whole, and then has improved the joint strength of limiting plate and floor platform to the indirect joint strength who has improved floor outrigger and floor platform.
The present invention may be further configured in a preferred embodiment as: the floor outrigger lateral wall is provided with two butt joint pieces, floor platform upper surface just is located subsider department and is provided with the side groove with butt joint piece looks adaptation.
Through adopting above-mentioned technical scheme, the butt piece supports side limit inslot cavity to inject the position at floor outrigger length direction both ends, it has greatly improved the positional stability of floor outrigger at the subsider inner chamber, and then has ensured the joint strength of floor outrigger and floor platform.
The present invention may be further configured in a preferred embodiment as: the transverse section of the abutting block is in a dovetail groove shape.
Through adopting above-mentioned technical scheme, the butt piece of forked tail cell type, the lateral wall length of its width direction one side is greater than the length of its opposite side, after its subsider inner chamber of support-in and its adaptation, its stable in position and the difficult phenomenon that the pine shakes the migration that appears, and then has effectively ensured the position stability of butt piece in the side inslot.
The present invention may be further configured in a preferred embodiment as: each side slot is internally provided with a positioning column, and the upper surface of the abutting block is provided with a clamping hole which is convenient for the positioning column to pass through in a penetrating way.
Through adopting above-mentioned technical scheme, when the butt piece supports side inslot cavity, the reference column supports into block hole inner chamber, and it has further injectd the position of butt piece at the side inslot, and then has further ensured the joint strength of floor outrigger at the subsider inner chamber.
The present invention may be further configured in a preferred embodiment as: the end wall of the height direction of the positioning column is provided with a locking groove, and a fixing part used for tightly abutting against the positioning column and the abutting block at the same time is arranged in the locking groove.
Through adopting above-mentioned technical scheme, when the mounting was screwed up at the locking inslot, the end of mounting can support tight reference column and butt piece simultaneously, and it has reduced the butt piece and has appeared upwards the phenomenon of sliding along the direction of height of reference column, and then has ensured the positional stability of butt piece in the side inslot to the joint strength of floor outrigger in the subsider has been ensured.
The present invention may be further configured in a preferred embodiment as: and a step groove for accommodating the end of the fixing piece is formed in the upper surface of the abutting block around the periphery of the clamping hole.
By adopting the technical scheme, the stepped groove is used for accommodating the end of the fixing piece, so that the phenomenon that the end of the fixing piece is exposed above the abutting block is reduced, and the influence of external factors on the position of the fixing piece is reduced; simultaneously, it has ensured the horizontality of butt piece roof, and the constructor of being convenient for covers floor platform upper surface with concrete thick liquids wholesale.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the floor cantilever beam is abutted into the inner cavity of the settling tank, so that the connection tightness of the floor cantilever beam and the floor platform is improved when the floor cantilever beam is abutted against the floor platform; the extension square pipe with the clamping and connecting plate is abutted into the inner cavity of the abdicating groove, so that powerful counter-pulling acting force is formed between the floor platform and the floor cantilever beam, the connecting strength between the floor platform and the floor cantilever beam is further enhanced, and the use stability of the stair body is guaranteed;
2. the limiting plates are abutted into the inner cavities of the extending grooves, and the connecting columns penetrate through the limiting plates and extend into the floor platforms, so that the connecting strength of the limiting plates and the floor platforms is improved, and the connecting strength of the floor cantilever beams and the floor platforms is further guaranteed; the abutting block abuts against the inner cavity of the side groove, and the positioning column penetrates through the inner cavity of the clamping hole, so that the connecting strength of the floor slab cantilever beam on the floor platform is further improved.
Drawings
FIG. 1 is a schematic structural view of a high-strength concrete prefabricated staircase;
FIG. 2 is a schematic cross-sectional view of the connection between the floor outriggers and the floor platforms;
FIG. 3 is an exploded view of the positional relationship of the landing, locating post and fixture;
fig. 4 is a schematic view of the positional relationship of the abutment block, the limiting plate and the floor outrigger.
In the figure, 1, a stair body; 101. floor cantilever beams; 102. a yielding groove; 103. a limiting plate; 104. connecting columns; 2. a floor platform; 201. a settling tank; 202. extending the square tube; 203. a clamping and connecting plate; 204. a side groove; 205. an extension groove; 3. a butting block; 301. a clamping hole; 302. a step groove; 4. a positioning column; 401. a locking groove; 402. and a fixing member.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Refer to fig. 1, do the utility model discloses a high strength concrete prefabricated staircase, including stair body 1 and floor platform 2. The stair body 1 is formed by pouring reinforcing steel bars and concrete, and floor slab cantilever beams 101 are respectively poured at two ends of the stair body in the length direction along the horizontal direction. The floor platform 2 is the concrete pouring floor in the building body, and adjacent floor platform 2 has certain difference in height, and the diapire that is located the floor outrigger 101 of higher department can offset with 2 roof walls of floor platform of higher department, and the roof that is located the floor outrigger 101 of lower department can offset with 2 roof walls of floor platform of lower department, and it makes stair body 1 erect between two adjacent floor platforms 2, and then so that people move towards high floor from low floor.
Referring to fig. 1 and 2, a settling tank 201 is arranged on the upper surface of the floor platform 2, the inner diameter of the settling tank 201 is matched with the outer circumference of the floor outrigger 101, and the floor outrigger 101 abuts against the inner cavity of the settling tank 201, so that the tightness of the floor outrigger 101 abutting against the floor platform 2 is improved.
Referring to fig. 2 and 3, two extension square pipes 202 are vertically arranged in the settling tank 201, the extension square pipes 202 are steel pipes with square longitudinal sections, and the inner cavities are filled with concrete slurry. The extension square pipe 202 is pre-buried when the floor platform 2 is poured, and is fixedly connected with the floor platform 2 after being fixedly connected and formed. The perpendicular of every extension side pipe 202 length direction is provided with joint board 203, and joint board 203 is solid steel sheet, and it and extension side pipe 202 integrated into one piece.
Referring to fig. 2 and 4, the upper surface of the floor cantilever beam 101 is provided with an abdicating groove 102 along the thickness direction thereof, and the inner diameter size of the abdicating groove 102 is matched with the outer circumference size of the square extension pipe 202 and the clamping plate 203 which are perpendicular to each other. When the floor cantilever beam 101 is abutted into the inner cavity of the settlement tank 201, the extension square pipe 202 and the clamping plate 203 can be simultaneously abutted into the inner cavity of the abdicating tank 102, so that mutual tensile force is generated between the floor platform 2 and the floor cantilever beam 101, and the connection strength of the floor platform and the floor cantilever beam 101 is improved.
Referring to fig. 3 and 4, the abutting blocks 3 are integrally formed on both ends of the outer side wall of the floor cantilever beam 101 in the longitudinal direction thereof, and the transverse section of the abutting block 3 is formed in a dovetail groove shape. The two ends of the upper surface of the floor platform 2 in the length direction of the settling tank 201 are respectively provided with a side groove 204, and the inner cavity of the side groove 204 is communicated with the inner cavity of the settling tank 201. When the floor cantilever beam 101 is abutted to the inner cavity of the settling tank 201, the abutting block 3 is abutted to the inner cavity of the side groove 204, the positions of the two ends of the floor cantilever beam 101 in the length direction are effectively limited, and the connecting strength of the floor cantilever beam 101 and the floor platform 2 is further improved.
Referring to fig. 3 and 4, a positioning column 4 is vertically welded to the bottom wall of each side groove 204, and the positioning column 4 is a solid steel rod. The upper surface of the abutting block 3 is provided with a clamping hole 301 along the thickness direction thereof in a penetrating manner, and the inner diameter size of the clamping hole 301 is matched with the outer periphery size of the positioning column 4. When the abutting block 3 abuts against the inner cavity of the side groove 204, the positioning column 4 abuts against the engaging hole 301, so as to further fix the position of the floor slab cantilever beam 101 in the settling tank 201.
Referring to fig. 3 and 4, a locking groove 401 is formed in an end wall of each positioning column 4 in the height direction, the locking groove 401 is a threaded groove, and a fixing member 402 is connected to an inner cavity of the threaded groove in a threaded manner. Fixing piece 402 is the bolt, and when it was screwed up in locking groove 401, its tip can support tight reference column 4 and butt piece 3 simultaneously, and then has effectively reduced butt piece 3 and has appeared upwards sliding along the direction of height of reference column 4, the phenomenon that breaks away from side groove 204 even.
Referring to fig. 3 and 4, a stepped groove 302 is provided on the upper surface of the abutment block 3 around the outer periphery of the engagement hole 301, and the stepped groove 302 receives the tip of the fixing member 402. When the fixing piece 402 is screwed in the locking groove 401, the end of the fixing piece 402 is positioned in the step groove 302, which effectively reduces the influence of external factors on the fixing piece 402, and makes the top wall of the abutting block 3 be in the same horizontal plane everywhere, so that the constructors can seal the top wall evenly.
Referring to fig. 3 and 4, two limiting plates 103 are perpendicularly welded to one end, away from the direction of the stair body 1, of the floor cantilever beam 101, the limiting plates 103 are steel plates, and the two abdicating grooves 102 are located between the two limiting plates 103. Two extension grooves 205 are arranged on the upper surface of the floor platform 2 and on one side of the settling tank 201 in the width direction, and the inner cavities of the two extension grooves 205 are communicated with the inner cavity of the settling tank 201. When the floor cantilever beam 101 abuts against the inner cavity of the settling tank 201, the limiting plate 103 also abuts against the inner cavity of the extension tank 205, which limits the position of the floor cantilever beam 101 in the width direction and effectively ensures the connection strength of the floor cantilever beam 101 and the floor platform 2.
Referring to fig. 3 and 4, be provided with spliced pole 104 between limiting plate 103 and the floor platform 2 jointly, spliced pole 104 is solid steel column, it can run through limiting plate 103 and make its direction of height's one end support into inside the floor platform 2, and then make limiting plate 103 and 2 fixed connection of floor platform, it has greatly improved limiting plate 103 and 2 joint strength of floor platform, and then improved the joint strength of floor outrigger 101 and floor platform 2, ensured stair body 1's stability in use.
The implementation principle of the embodiment is as follows:
aim at the subsider 201 with floor outrigger 101 and support into, at this moment, the limiting plate 103 can support into extension groove 205 inner chamber, and butt piece 3 can support into side groove 204 inner chamber, and reference column 4 can support into block hole 301 inner chamber, and floor outrigger 101 is comparatively stable to support tightly with floor platform 2, and stair body 1 tentatively erects between two adjacent floor platforms 2.
The connecting column 104 penetrates through the limiting plate 103 and is abutted into the floor platform 2, so that the limiting plate 103 is fixedly connected with the floor platform 2. The fixing member 402 is screwed into the inner cavity of the locking groove 401, and the end of the fixing member 402 abuts against the positioning column 4 and the abutting block 3 at the same time, so that the position of the abutting block 3 is fixed in the inner cavity of the side groove 204. At this moment, floor outrigger 101 is comparatively stably fixed in the subsider 201 inner chamber, and the joint strength between the two is higher, and its stability in use that has effectively ensured prefabricated staircase.
Finally, the constructor can cover the upper surface of the floor platform 2 by using the concrete grout to form a horizontal concrete surface layer on the upper surface, so that the constructor is convenient for people to walk and effectively reduces the influence of external factors on the connecting structure between the floor cantilever beam 101 and the floor platform 2.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a high strength concrete prefabricated staircase, includes stair body (1) and floor platform (2), stair body (1) length direction's both ends are provided with horizontally floor outrigger (101) respectively, floor outrigger (101) offset its characterized in that with floor platform (2): the upper surface of the floor platform (2) is provided with a settling tank (201) which is convenient for a floor slab cantilever beam (101) to abut into, two extension square pipes (202) are arranged in the settling tank (201), and the end wall of each extension square pipe (202) in the length direction is provided with a clamping plate (203); the upper surface of the floor slab cantilever beam (101) is provided with a yielding groove (102) which is convenient for the extension square pipe (202) and the clamping plate (203) to simultaneously abut in a penetrating manner.
2. The high-strength concrete prefabricated staircase according to claim 1, characterized in that: the floor outrigger (101) is provided with two limiting plates (103) far away from the one end of stair body (1) direction, floor platform (2) upper surface just is located subsider (201) and locates to be provided with extension groove (205) that are convenient for limiting plate (103) to pass.
3. The high-strength concrete prefabricated staircase according to claim 2, characterized in that: and a connecting column (104) is arranged between the limiting plate (103) and the floor platform (2) together.
4. The high-strength concrete prefabricated staircase according to claim 2, characterized in that: the outer side wall of the floor cantilever beam (101) is provided with two abutting blocks (3), and a side groove (204) matched with the abutting blocks (3) is formed in the upper surface of the floor platform (2) and located in the settling tank (201).
5. The high-strength concrete prefabricated staircase according to claim 4, wherein: the transverse section of the abutting block (3) is in a dovetail groove shape.
6. The high-strength concrete prefabricated staircase according to claim 4, wherein: each side groove (204) is internally provided with a positioning column (4), and the upper surface of the abutting block (3) is provided with a clamping hole (301) which is convenient for the positioning column (4) to pass through.
7. The high-strength concrete prefabricated staircase according to claim 6, wherein: the end wall of the height direction of the positioning column (4) is provided with a locking groove (401), and a fixing piece (402) used for tightly abutting against the positioning column (4) and the abutting block (3) at the same time is arranged in the locking groove (401).
8. The high-strength concrete prefabricated staircase according to claim 7, wherein: and a step groove (302) for accommodating the end of the fixing piece (402) is formed in the upper surface of the abutting block (3) around the periphery of the clamping hole (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021248154.XU CN212743203U (en) | 2020-06-30 | 2020-06-30 | High-strength concrete prefabricated staircase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021248154.XU CN212743203U (en) | 2020-06-30 | 2020-06-30 | High-strength concrete prefabricated staircase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212743203U true CN212743203U (en) | 2021-03-19 |
Family
ID=75011912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021248154.XU Expired - Fee Related CN212743203U (en) | 2020-06-30 | 2020-06-30 | High-strength concrete prefabricated staircase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212743203U (en) |
-
2020
- 2020-06-30 CN CN202021248154.XU patent/CN212743203U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210319 |