CN212427857U - Prefabricated assembly beam type stair and building - Google Patents
Prefabricated assembly beam type stair and building Download PDFInfo
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- CN212427857U CN212427857U CN202020819085.7U CN202020819085U CN212427857U CN 212427857 U CN212427857 U CN 212427857U CN 202020819085 U CN202020819085 U CN 202020819085U CN 212427857 U CN212427857 U CN 212427857U
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Abstract
The utility model relates to the technical field of assembly buildings, in particular to a prefabricated assembly beam type stair and a building, which comprises two oblique beams and pedals, wherein the upper surfaces of the two oblique beams are step-shaped, and the two oblique beams are separated and arranged in parallel; the pedals are in a step shape, and two sides and the bottom of the pedals are matched with the oblique beams; the pedal is internally provided with reinforcing ribs, and two sides of the pedal are respectively located on the two oblique beams and are integrally formed with the oblique beams. The utility model has the advantages that the inclined beams are divided into two parts and positioned at the two sides of the stairs, and the reinforcing ribs are added in the pedals to ensure the strength of the pedals, so that the space below the pedals is prevented from adopting an integral step plate structure, the material is saved to a great extent, the integral weight of the stairs is reduced, and the lifting of the stairs is facilitated; the arrangement of the first reinforcing ribs and the second reinforcing ribs and the structure of the second reinforcing ribs extending into the inclined beam strengthen the strength of the pedal, reduce the thickness of the pedal, strengthen the connection with the inclined beam and improve the overall strength of the stair.
Description
Technical Field
The utility model relates to an assembly building technical field especially relates to a prefabricated assembly beam type stair.
Background
The traditional stairway is mostly a reinforced concrete cast-in-place stairway, so that the construction time is prolonged, materials are wasted, and the construction environment is not environment-friendly. Recently, prefabricated staircases are gradually popularized, the prefabricated staircases are prefabricated and formed in factories, and then are hoisted on site to be assembled with a building main body structure.
The inventor finds that the structure of the prior common prefabricated staircase is basically the same as that of the traditional cast-in-place staircase, and only the cast-in-place link is transferred to a factory. Because the stair beams and the stair treads of the stair are not differentiated, the upper surface of the stair beams is the treads. Because the stair beam integrally forms the footboard, occupation space is many, and is bulky, and this kind of stair weight is big, and is very high to the equipment of hoist and mount and working space requirement, when the stair span is great, the increase hoist and mount work load that can be very big.
Disclosure of Invention
The utility model discloses a solve current assembly stair because occupation space is many, weight is big, and it is very high to the equipment and the working space requirement of hoist and mount, when the stair span is great, can very big increase hoist and mount work load's problem provides a prefabricated assembly beam type stair.
In order to achieve the above object, one or more embodiments of the present invention provide the following technical solutions:
a prefabricated assembly beam type stair is characterized by comprising an inclined beam and a pedal,
the upper surface of the two inclined beams is step-shaped, and the two inclined beams are separated and arranged in parallel;
the pedals are in a step shape, and the bottoms of the pedals are matched with the inclined beams;
the pedal is internally provided with reinforcing ribs, and two sides of the pedal are respectively located on the two oblique beams and are integrally formed with the oblique beams.
In a further improvement, the reinforcing ribs comprise a first reinforcing rib and a second reinforcing rib;
the first reinforcing ribs are arranged at the positions of the pedal corresponding to the inclined beam ribs;
the second reinforcing ribs are arranged at the positions of the pedals corresponding to the concave parts of the inclined beams.
In a further improvement, two ends of the first reinforcing rib extend into the oblique beam, and two ends of the second reinforcing rib extend into the oblique beam.
In a further improvement, two ends of the first reinforcing rib are bent downwards and extend into the oblique beam;
and two ends of the second reinforcing rib extend into the oblique beam.
In a further improvement, the angle rib is arranged in the oblique beam and formed by bending a straight rib, and a top corner part is formed at the bending part.
In a further improvement, a plurality of the angle ribs are correspondingly arranged on each step of the oblique beam, the angle ribs are preferably arranged at the top protruding positions of the oblique beam, and the pedal is 50mm to 80mm thick.
Preferably, the width of the cross section of the oblique beam is 150mm to 300mm, and the height of the oblique beam is 250mm to 600 mm.
The utility model also provides a building, include as before prefabricated assembly beam type stair.
Compared with the prior art, the beneficial effect of above one or more technical scheme:
(1) because divide into two with the sloping to be located the both sides portion of stair, formed unsettled space below the footboard, between two sloping, avoided adopting holistic step structure in footboard below space, add the strengthening rib simultaneously in the footboard and guaranteed footboard intensity, to a great extent reduces the thickness of footboard, can make the thin plate with the footboard, has practiced thrift the material, has reduced the whole weight of stair, is favorable to the hoist and mount of stair.
(2) The arrangement of the first reinforcing ribs and the second reinforcing ribs and the structure of the second reinforcing ribs extending into the inclined beam strengthen the strength of the pedal, strengthen the connection with the inclined beam and improve the overall strength of the stair.
(3) The sloping beam sets up the angle muscle and the angle muscle apex angle is towards the bead of step, has improved the intensity of sloping beam self on the one hand, and on the other hand provides powerful support to the step, has improved the holding power of step, is favorable to reducing the whole volume of step to further alleviate the weight of stair.
Drawings
FIG. 1 is a cross-sectional view of a prefabricated assembly beam type staircase provided by the embodiment of the present invention;
FIG. 2 is a cross-sectional view of a prefabricated assembly beam type staircase provided by the embodiment of the present invention;
fig. 3 is a sectional view of a-a in fig. 1 of the prefabricated assembly beam type staircase provided by the embodiment of the present invention;
fig. 4 is a sectional view of fig. 3, taken along the line B-B, illustrating a prefabricated assembled beam type staircase according to an embodiment of the present invention;
in the figure:
1. sloping, 2, footboard, 3, first strengthening rib, 4, second strengthening rib, 5, angle muscle.
Detailed Description
Example 1
The utility model discloses a first embodiment provides a prefabricated assembly beam type stair, as shown in fig. 1, including sloping 1, footboard 2.
As shown in fig. 2 to 4, the inclined beams 1 have two parts, the upper surfaces of which are stepped, and the two inclined beams are spaced apart and arranged in parallel. The footboard 2 is the echelonment, and the bottom shape cooperatees with the sloping 1, and the footboard is inside to be provided with the strengthening rib, and 2 both sides of footboard are located two sloping 1 respectively to with the integrative concrete placement shaping of sloping 1.
This kind of prefabricated assembly beam type stair that this embodiment provided is owing to divide into two with the sloping to be located the both sides portion of stair, in the footboard below, formed unsettled space between two sloping, avoided adopting holistic heavy and thick plate structure in footboard below space, add the strengthening rib simultaneously in the footboard and guaranteed footboard intensity, to a great extent reduces the thickness of footboard, can make the footboard into the sheet metal, and the material is practiced thrift, has reduced the whole weight of stair, is favorable to the hoist and mount of stair.
As shown in fig. 2, the reinforcing beads include a first reinforcing bead 3 and a second reinforcing bead 4. The first reinforcing ribs 3 are arranged at the positions, corresponding to the inclined beams, of the pedal, and the two ends of the first reinforcing ribs naturally extend into the inclined beams 1. The second reinforcing ribs 4 are arranged at the positions of the pedal corresponding to the ribs of the inclined beam, and the two ends of the second reinforcing ribs are bent downwards and extend into the inclined beam 1.
The arrangement of the first reinforcing ribs and the second reinforcing ribs and the structure of the second reinforcing ribs extending into the inclined beam strengthen the strength of the pedal, strengthen the connection with the inclined beam and improve the overall strength of the stair.
As shown in fig. 4, the angle rib 5 is provided inside the oblique beam 1, and the angle rib is formed by bending a straight rib, and a vertex angle part is formed at the bent part. A plurality of angle ribs 5 are correspondingly arranged on each step of the oblique beam, the top corners of the angle ribs face the convex edges of the steps, and the angle ribs 5 are arranged at the top protruding positions of the oblique beam in the oblique beam 1.
The sloping beam sets up the angle muscle and the angle muscle apex angle is towards the bead of step, has improved the intensity of sloping beam self on the one hand, and on the other hand provides powerful support to the step, has improved the holding power of step, is favorable to reducing the whole volume of step to further alleviate the weight of stair.
The embodiment adopts the following parameters:
the thickness of the pedal is 50mm to 80 mm;
the width of the cross section of the oblique beam is 150mm to 300mm, and the height is 250mm to 600 mm;
the diameter of the top rib of the tread plate is 6mm or 8 mm.
Selecting materials:
the cant beam concrete grades C25 to C60;
the first reinforcing rib is made of common reinforcing steel bars, and the type of the reinforcing steel bars can be selected from HPB300, HRB335 or HRB 400;
the second reinforcing rib adopts ordinary reinforcing bar or prestressing steel. The ordinary steel bar can be selected from HPB300, HRB335, HRB400, HRB500 or CRB 600H. The standard value of the ultimate strength of the prestressed reinforcement is 800N/mm 2-1960N/mm 2.
Example 2
A second embodiment of the present invention provides a building including the prefabricated assembly beam type staircase according to embodiment 1.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. A prefabricated assembly beam type stair is characterized by comprising an inclined beam and a pedal,
the two inclined beams are separated and arranged in parallel, and the upper surface of each inclined beam is step-shaped;
the pedal is in a step shape, and the shape of the bottom of the pedal is matched with that of the oblique beam;
the pedal is internally provided with reinforcing ribs, and two sides of the pedal are respectively located on the two oblique beams and are integrally formed with the oblique beams.
2. The prefabricated assembled beam stairway as claimed in claim 1, wherein said reinforcing ribs include a first reinforcing rib, a second reinforcing rib;
the first reinforcing ribs are arranged at the positions of the pedal corresponding to the inclined beam ribs;
the second reinforcing ribs are arranged at the positions of the pedals corresponding to the concave parts of the inclined beams.
3. The prefabricated assembled beam type staircase of claim 2, wherein both ends of the first reinforcing rib are extended into the stringer, and both ends of the second reinforcing rib are extended into the stringer.
4. The prefabricated assembled beam type staircase of claim 3,
two ends of the first reinforcing rib are bent downwards and extend into the oblique beam;
and two ends of the second reinforcing rib extend into the oblique beam.
5. The prefabricated assembled beam type staircase according to claim 1, wherein said stringer is internally provided with an angle rib, said angle rib is formed by bending a straight rib, and a vertex angle part is formed at the bent position.
6. The prefabricated assembled beam type staircase of claim 5, wherein said stringer is provided with a plurality of said corner ribs, the top corners of said corner ribs facing the ledge of the step.
7. The prefabricated assembled beam stairway as claimed in claim 6, wherein said corner ribs are provided at a top projection of the stringer.
8. The prefabricated assembled beam stairway as claimed in claim 1, wherein said tread is 50mm to 80mm thick.
9. The prefabricated assembled beam type staircase of claim 8, wherein the width of the cross section of the inclined beam is 150mm to 300mm, and the height is 250mm to 600 mm.
10. A building comprising a prefabricated assembled beam stairway as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020819085.7U CN212427857U (en) | 2020-05-15 | 2020-05-15 | Prefabricated assembly beam type stair and building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020819085.7U CN212427857U (en) | 2020-05-15 | 2020-05-15 | Prefabricated assembly beam type stair and building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212427857U true CN212427857U (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020819085.7U Active CN212427857U (en) | 2020-05-15 | 2020-05-15 | Prefabricated assembly beam type stair and building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212427857U (en) |
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2020
- 2020-05-15 CN CN202020819085.7U patent/CN212427857U/en active Active
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Address after: 250101 1-6, 11, Shun Tai Plaza, 2000 Shun Hua Road, Ji'nan high tech Zone, Shandong. Patentee after: Tongyuan Design Group Co.,Ltd. Address before: 250101 1-6, 11, Shun Tai Plaza, 2000 Shun Hua Road, Ji'nan high tech Zone, Shandong. Patentee before: TONGYUAN DESIGN GROUP Co.,Ltd. |