CN217630934U - Structure capable of reducing weight of prefabricated staircase - Google Patents
Structure capable of reducing weight of prefabricated staircase Download PDFInfo
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- CN217630934U CN217630934U CN202220987676.4U CN202220987676U CN217630934U CN 217630934 U CN217630934 U CN 217630934U CN 202220987676 U CN202220987676 U CN 202220987676U CN 217630934 U CN217630934 U CN 217630934U
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- prefabricated staircase
- prefabricated
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Abstract
The utility model provides a structure capable of reducing the weight of a prefabricated staircase, wherein the upper end and the lower end of the prefabricated staircase are matched, installed and fixed with the front ends of two ladder beams, the lowest pedal of the prefabricated staircase is a lower ladder platform, the highest pedal is an upper ladder platform, positioning grooves are respectively arranged at the lower sides of the upper ladder platform and the lower ladder platform, and positioning bulges matched with the positioning grooves are arranged at the joints of the front ends of the ladder beams; the front end of ladder roof beam is equipped with and picks the board and choose the ear, picks the board and is located the top of choosing the ear, picks the board and chooses the ear structure the same and at the front end dislocation of ladder roof beam. The beneficial effects are as follows: this prefabricated staircase has got rid of the prefabricated tower section of connecing at original prefabricated staircase both ends, has realized the weight that subtracts of concrete prefabricated staircase, has practiced thrift purchasing equipment cost, reduces the concrete volume, has shortened construction period, only needs a mould just can produce, has reduced the research and development production use cost of mould, will be more convenient, high-efficient in transportation and installation link.
Description
Technical Field
The utility model relates to a prefabricated staircase field especially indicates a structure that can reduce prefabricated staircase weight.
Background
Under the promotion of a plurality of departments in China, the green building materials are greatly developed by accelerating the research and development and popularization of the related technologies of green buildings, the building industrialization is promoted, and the assembly type buildings are greatly popularized nationwide. In the transformation from the original construction mode to the factory prefabricated production model, the prefabricated staircase has been widely applied in the field of fabricated building due to the advantages of high standardization degree, low production difficulty, convenient construction and installation, and the like.
The prefabricated staircase is the most mature part of technology in the prefabricated member of prefabricated building up to the present time, but because the dead weight of prefabricated staircase is heavier, the weight of prefabricated staircase is close to even surpass the maximum hoisting weight that current tower crane allows basically in the hoist and mount process, has great threat to the safety of construction stage, exists the hidden danger. Therefore, under the condition that the models of the tower cranes are not updated in a large scale, the weight reduction of the stair component is a simple and effective solution with the lowest cost.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem that exists among the prior art, provide a structure that can reduce prefabricated staircase weight.
The technical scheme of the utility model is realized like this:
a structure for reducing the weight of a prefabricated staircase, comprising: the prefabricated staircase comprises prefabricated staircases and staircase beams, wherein the upper end and the lower end of each prefabricated staircase are matched and fixedly installed with the front ends of the two staircase beams, the pedal at the lowest end of each prefabricated staircase is a lower staircase platform, the uppermost end of each prefabricated staircase is an upper staircase platform, positioning grooves are formed in the lower sides of the upper staircase platform and the lower staircase platform, and positioning bulges matched with the positioning grooves are arranged at the connecting positions of the front ends of the staircase beams; the front end of ladder roof beam is equipped with and picks the board and choose the ear, it is located the top of choosing the ear to pick the board, it with it is the same and is in to choose the ear structure the front end dislocation of ladder roof beam.
Preferably, the lifting plate and the lifting lug are further provided with embedded bolts, and the embedded bolts are in one-to-one correspondence with the anchor holes in the lower step and the anchor holes in the upper step.
Preferably, the positioning protrusions on the upper step platform are matched with the positioning grooves on the lifting lugs, and the positioning protrusions on the lower step platform are matched with the positioning grooves on the lifting plates.
Preferably, the distance from the upper plane of the upper landing to the upper plane of the ladder beam is the same as the height of the step.
The utility model has the advantages that:
1. the prefabricated staircase eliminates prefabricated tower connecting sections at two ends of the original prefabricated staircase, realizes the weight reduction of the concrete prefabricated staircase, saves the cost of purchasing equipment, reduces the consumption of concrete and shortens the construction period; compared with the prior prefabricated staircase component without reducing weight, the prefabricated staircase after reducing weight can be produced by only one mould, thereby reducing the research, development, production and use cost of the mould, reducing 30 percent of the dead weight of the prefabricated staircase component on the premise of ensuring that the component meets the use and safety requirements, leading the prefabricated staircase to be more convenient and efficient in the transportation and installation links and obtaining good economic benefit;
2. the joint portion of ladder roof beam and prefabricated stair has set up constant head tank and location arch, and the protruding card of location has strengthened the joint strength of ladder roof beam and prefabricated stair in the constant head tank.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the prefabricated staircase of the present invention;
fig. 3 is a schematic structural view of the ladder beam of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
Fig. 1-3 show a structure that can reduce prefabricated staircase weight, includes: prefabricated staircase 1 and terraced beam 2, prefabricated staircase 1 is the concrete prefabricated component, terraced beam 2 is cast-in-place, prefabricated staircase 1's the footboard of lower extreme is down terraced 3, the top is last terraced 4, go up terraced 4 and down terraced 3 itself is exactly the footboard 5 of prefabricated staircase 1, all set up constant head tank 6 at last terraced 4 with the downside of terraced 3 down, the front end of terraced beam 2 is equipped with and picks board 7 and chooses ear 8, it is located the top of choosing ear 8 to pick board 7, pick board 7 and choose the same and front end dislocation arrangement at terraced beam 2 of ear 8 structure, go up the protruding 9 of location on the terraced 4 and choose the constant head tank 6 cooperation installation on the ear 8, the protruding 9 of location on the terraced 3 of lower terraced and the constant head tank 6 cooperation installation on the board 7 of choosing.
The lifting plate 7 and the lifting lug 8 are also provided with embedded bolts 11, and the embedded bolts 11 are respectively in one-to-one correspondence with the anchor holes 10 on the lower step platform 3 and the upper step platform 4.
The distance from the upper plane of the upper landing 4 to the upper plane of the ladder beam 2 is the same as the height of the tread 5, and the reason for setting the height is that the exposed part of the ladder beam 2 can be used as a section of tread 5, so that the prefabricated staircase 1 can perfectly support the ladder beam 2.
The front end of the ladder beam 2 adopts the structure of the lifting plate 7 and the lifting lug 8 which are arranged in a staggered manner, the concrete material of the ladder beam 2 is also lightened, and the strength of the structure of the lifting plate 7 and the lifting lug 8 completely meets the requirement.
Example one
When the structure is installed, a prefabricated staircase 1 is hoisted between two staircase beams 2, an anchor hole 10 on a lower staircase platform 3 is aligned with a prefabricated anchor bolt on a take-up plate 7, a positioning bulge 9 is clamped in a positioning groove 6 after the prefabricated staircase is installed in place, and the anchoring of the lower staircase platform 3 and the lower staircase beam 2 is completed by utilizing the prefabricated anchor bolt; the same principle is applied to the installation of the upper step 4, and the anchor holes of the upper step 4 are aligned with the prefabricated anchor bolts of the lifting lugs 8.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the present invention.
Claims (4)
1. A structure for reducing the weight of a prefabricated staircase, comprising: the prefabricated staircase comprises prefabricated staircases and staircase beams, wherein the upper end and the lower end of each prefabricated staircase are matched and fixedly installed with the front ends of the two staircase beams, the pedal at the lowest end of each prefabricated staircase is a lower staircase platform, the uppermost end of each prefabricated staircase is an upper staircase platform, positioning grooves are formed in the lower sides of the upper staircase platform and the lower staircase platform, and positioning bulges matched with the positioning grooves are arranged at the connecting positions of the front ends of the staircase beams; the front end of ladder roof beam is equipped with and picks the board and choose the ear, it is located the top of choosing the ear to pick the board, it with it is the same and is in to choose the ear structure the front end dislocation of ladder roof beam.
2. The structure capable of reducing the weight of the prefabricated staircase according to claim 1, wherein: the board is picked with it still is equipped with the embedded bolt to choose on the ear, the embedded bolt respectively with down the halfpace with go up the anchor eye one-to-one on the halfpace.
3. The structure capable of reducing the weight of the prefabricated staircase according to claim 1, wherein: go up on the halfpace the location protruding with choose on the ear the constant head tank cooperation installation, down on the halfpace the location protruding with choose on the board the constant head tank cooperation installation.
4. The structure capable of reducing the weight of the prefabricated staircase according to the claim 1, wherein: the distance from the upper plane of the upper ladder platform to the upper plane of the ladder beam is the same as the height of the pedals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220987676.4U CN217630934U (en) | 2022-04-27 | 2022-04-27 | Structure capable of reducing weight of prefabricated staircase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220987676.4U CN217630934U (en) | 2022-04-27 | 2022-04-27 | Structure capable of reducing weight of prefabricated staircase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217630934U true CN217630934U (en) | 2022-10-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220987676.4U Active CN217630934U (en) | 2022-04-27 | 2022-04-27 | Structure capable of reducing weight of prefabricated staircase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217630934U (en) |
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2022
- 2022-04-27 CN CN202220987676.4U patent/CN217630934U/en active Active
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