CN213837421U - Prefabricated assembled bench and prefabricated assembled stair - Google Patents
Prefabricated assembled bench and prefabricated assembled stair Download PDFInfo
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- CN213837421U CN213837421U CN202022179368.2U CN202022179368U CN213837421U CN 213837421 U CN213837421 U CN 213837421U CN 202022179368 U CN202022179368 U CN 202022179368U CN 213837421 U CN213837421 U CN 213837421U
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Abstract
The utility model relates to a prefabricated bench and a prefabricated staircase using the same, wherein the bench comprises two prefabricated bench beams and a plurality of prefabricated steps with step structures, and the left and right ends of the prefabricated steps are joggled with the prefabricated bench beams on the corresponding sides respectively; the prefabricated step comprises pedals and shelves which are arranged in an upper-lower two-stage manner, and the pedals of the next-stage prefabricated step are at least partially placed on the shelves of the previous-stage prefabricated step in the two adjacent stages of prefabricated steps. The utility model discloses disassemble the bench into bench roof beam and mark time and prefabricate respectively, the mill prefabricates, transports hoist and mount and construction installation is comparatively simple and convenient; the ladder section beam and the step adopt a tenon joint type assembly structure, so that the ladder section beam is convenient to install, high in structural reliability and convenient to maintain; the plate bodies of the adjacent two-stage prefabricated steps are mutually overlapped, the previous step can support the next step, the cooperative stress between the steps can be improved, and the structural stability and the operational reliability of the stair are higher.
Description
Technical Field
The utility model belongs to the technical field of building engineering, concretely relates to prefabricated assembled bench and adopt prefabricated assembled stair of this prefabricated assembled bench.
Background
At present, the stair commonly used in the building design and construction process is a cast-in-place reinforced concrete stair, the stair system is constructed in a secondary structure mode, the construction period is long, the process is complicated, the construction difficulty is high, the season and climate influence is large, the manufacturing cost is high, and the engineering period is prolonged.
For solving the drawback of traditional stair, prefabricated reinforced concrete stair becomes one of the direction of research at present, and the main mode is that prefabricated a part stair structure and on-the-spot assembling, and its prefabricated part is whole bench from top to bottom, and the rest platform in the middle of the stair and support beam column are cast-in-place, carry out the overlap joint equipment with bench from top to bottom after cast-in-place. However, the prefabricated staircase has the following disadvantages:
(1) for the stability of the stair, the whole stair section is prefabricated to form a stable rigid body, but the whole stair section becomes extra heavy, so that the prefabrication, the transportation, the construction and the installation are difficult, and the hoisting is difficult;
(2) the cast-in-place part is too much, and the prefabrication concept is not dominant.
Therefore, the prefabricated staircase is difficult to popularize in the market, and compared with the traditional staircase, the market still has the advantage of being compared with the traditional cast-in-place staircase.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a prefabricated assembled bench and adopt this prefabricated assembled bench's prefabricated assembled stair, partial defect that can solve prior art at least.
The utility model relates to a prefabricated bench section, which comprises two prefabricated bench section beams and a plurality of prefabricated steps,
the left end and the right end of the prefabricated step are respectively assembled and connected with the prefabricated ladder section beams on the corresponding sides in a tenon spring and tenon groove matching mode;
the prefabricated steps are of a step structure and comprise pedals and shelves which are arranged in an upper-lower two-stage manner; in the two adjacent stages of the prefabricated steps, the pedal of the next stage of the prefabricated steps is at least partially placed on the shelf of the previous stage of the prefabricated steps.
As one embodiment, the left end and the right end of the precast step are respectively connected with the precast bench beams on the corresponding sides by expansion bolts.
As one embodiment, the tenon joint parts arranged at the left end and the right end of the prefabricated step are all tenon springs.
In one embodiment, the length of the tenon spring is smaller than that of the mortise, and the slot cavity exposed at the upper part of the mortise is sealed by using the slot seal.
In one embodiment, the tenon spring is a dovetail tenon spring.
The utility model also relates to a prefabricated assembled stair, which comprises a bench, wherein the upper end and the lower end of the bench are respectively connected with the upper layer of landing slab and the lower layer of landing slab; or include a plurality of bench, link up through rest platform between two adjacent bench, the top and the upper landing slab of the bench of the top are connected, and the bottom and the lower floor landing slab of below bench are connected, and at least partial bench adopts as above prefabricated assembled bench.
In one embodiment, the prefabricated staircase comprises a plurality of staircases, wherein the rest platform is a prefabricated unit and is supported by a support structure provided on the lower landing deck.
In one embodiment, the support structure comprises a plurality of support columns and a plurality of support beams, each support beam being located on top of two of the support columns; the top of a supporting beam is provided with a first inserting portion, a plurality of second inserting portions are correspondingly arranged on the rest platform, and the first inserting portions are the same in number with the second inserting portions and are inserted in a one-to-one corresponding mode.
As one embodiment, the support columns and support beams are cast-in-place structures.
As one embodiment, the upper and lower ends of the ladder section are respectively lapped with the corresponding platform plate.
The utility model discloses following beneficial effect has at least:
the prefabricated assembled bench provided by the utility model is disassembled into the bench beams and the steps which are respectively prefabricated, the prefabricated components are small, the factory prefabrication, the transportation hoisting and the construction installation are all simple, and the simplification and the short period of the installation construction are realized; the ladder section beams and the steps adopt a tenon joint type assembly structure, so that the ladder section beams and the steps are convenient to install and high in structural reliability, and are easy to disassemble, overhaul and replace at the later stage, and the overhaul difficulty and the maintenance cost of the assembled stairway are reduced; the plate bodies of the adjacent two-stage prefabricated steps are mutually overlapped, the upper step can support the lower step, and the cooperative stress performance between the steps can be improved, so that the structural stability and the operational reliability of the prefabricated assembled bench are higher.
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 following description 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 a prefabricated bench beam provided by an embodiment of the present invention;
FIG. 2 is a schematic structural view of a prefabricated step provided by an embodiment of the present invention;
fig. 3 is a schematic view of an assembly structure between a precast step and a precast bench beam provided by an embodiment of the present invention;
fig. 4 is a schematic view of a support structure provided in an embodiment of the present invention;
fig. 5 is a schematic view of an assembly structure between a bench and a resting platform provided in an embodiment of the present invention;
fig. 6 is a schematic structural view of the prefabricated assembled staircase provided by the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, 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 creative efforts belong to the protection scope of the present invention.
Example one
As shown in fig. 1-3, an embodiment of the present invention provides a prefabricated bench 1, which includes two prefabricated bench beams 12 and a plurality of prefabricated steps 11, wherein the left and right ends of each prefabricated step 11 are respectively assembled and connected with the prefabricated bench beam 12 on the corresponding side in a manner that a tenon spring 113 is matched with a mortise 121; the prefabricated step 11 is of a step structure and comprises pedals 111 and shelves 112 which are arranged in an upper-lower two-stage manner; in the two adjacent stages of the precast steps 11, the pedal 111 of the next stage of the precast steps 11 at least partially rests on the shelf 112 of the previous stage of the precast steps 11.
The width and height of the prefabricated bench beam 12 should meet the structural stress requirements. To the assembly structure between prefabricated bench beam 12 and the prefabricated step 11, can be that setting up tenon spring 113 on the prefabricated step 11 and corresponding on the prefabricated bench beam 12 and setting up mortise 121, also can be that setting up mortise 121 on the prefabricated step 11 and corresponding on the prefabricated bench beam 12 and setting up tenon spring 113, can satisfy the structure atress requirement can.
In this embodiment, as shown in fig. 1 to fig. 3, preferably, the tenon joints disposed at the left and right ends of the precast step 11 are all tenon springs 113, and a plurality of tenon grooves 121 are correspondingly disposed on the precast block beam 12; based on this structure, be convenient for on the one hand each prefabricated step 11 and the location between the prefabricated bench beam 12 assemble, on the other hand, the load of prefabricated step 11 can transmit the bench beam 12 more reliably, and this prefabricated assembled bench 1's atress performance is better. In this solution, the top end of tenon spring 113 can adopt a slope design and is flush with the top end of mortise 121 after being inserted into mortise 121, so as to ensure the beauty; in another embodiment, as shown in fig. 3, the length of tenon spring 113 is less than the length of mortise 121, so that after tenon spring 113 is inserted into mortise 121, the upper portion of mortise 121 is notched, and accordingly, the exposed cavity at the upper portion of mortise 121 can be sealed by using a slot seal to ensure the aesthetic appearance; the slot seal can be designed according to decorative attractiveness and can also be designed for light.
In one embodiment, the length direction of the tenon spring 113 is parallel to the vertical direction, that is, the tenon spring 113 is vertically inserted into the mortise 121, so that the force transmission is definite and reliable, the safety is high, and the installation is convenient. In another embodiment, the length direction of the tenon spring 113 forms an angle with the horizontal direction, that is, the tenon spring 113 is obliquely inserted into the mortise 121 from top to bottom, and the mortise 121 and the tenon spring 113 have a larger force-bearing contact area.
In an alternative embodiment, as shown in fig. 2 and 3, the tenon spring 113 is a dovetail tenon spring 113, and the stability and reliability of the plugging structure between the tenon spring 113 and the mortise 121 are better.
It is understood that the prefabricated step 11 further comprises a vertical connecting plate, and the upper end and the lower end of the vertical connecting plate are respectively connected with the pedal 111 and the shelf 112. In the adjacent two-stage prefabricated steps 11, the pedal 111 of the next-stage prefabricated step 11 is also abutted against the vertical connecting plate of the previous-stage prefabricated step 11. The overlapping area between the shelf 112 of the upper-stage precast step 11 and the pedal 111 of the lower-stage precast step 11 can be designed as required, and preferably, the area of the shelf 112 is smaller than that of the pedal 111, so as to save concrete materials and reduce the self weight of the precast steps 11.
Further preferably, the railing foundation fixing plug-in can be pre-buried on the prefabricated bench beam 12 so as to facilitate later-stage insertion of the railing.
The prefabricated assembled bench 1 provided by the embodiment is disassembled into the bench beam 12 and the step 11 which are respectively prefabricated, the prefabricated components are small, the factory prefabrication, the transportation and hoisting as well as the construction and installation are simple and convenient, and the simplification and the short period of the installation and construction are realized; the ladder section beam 12 and the step 11 adopt a tenon joint type assembly structure, so that the ladder section beam is convenient to install and high in structural reliability, and is easy to remove, overhaul and replace at the later stage, and the overhaul difficulty and the maintenance cost of the assembled stair are reduced; the plate bodies of the adjacent two-stage prefabricated steps 11 are mutually overlapped, the upper step 11 can support the lower step 11, and the cooperative stress performance between the steps 11 can be improved, so that the structural stability and the operational reliability of the prefabricated assembled bench 1 are higher.
Further preferably, the left end and the right end of the prefabricated step 11 are respectively connected with the prefabricated bench beam 12 on the corresponding side through expansion bolts 13, so that the reliability of the connection structure between the step 11 and the bench beam 12 is further improved, and the use safety of the assembled bench 1 is ensured.
Example two
The embodiment of the utility model provides a prefabricated assembled stair, which comprises a stair section 1, wherein the upper end and the lower end of the stair section 1 are respectively connected with an upper layer platform plate 41 and a lower layer platform plate 42; or include a plurality of bench 1, link up through rest platform 2 between two adjacent bench 1, the top and the upper landing slab 41 of bench 1 of the top are connected, and the bottom and the lower landing slab 42 of bench 1 of the bottom are connected, and at least some bench 1 adopts the prefabricated assembled bench 1 that above-mentioned embodiment one provided.
In this embodiment, as shown in fig. 6, the fabricated stairway includes a plurality of sections 1, and each section 1 adopts the prefabricated fabricated section 1 provided in the first embodiment.
Preferably, the upper and lower both ends of bench 1 respectively with the landing slab overlap joint that corresponds, the top and the upper deck landing slab 41 overlap joint of the bench 1 of the top promptly, each bench 1 and adjacent rest platform 2 overlap joint, the bottom and the lower floor landing slab 42 overlap joint of the bench 1 of the below. As shown in fig. 1, 5 and 6, the top and bottom ends of the ladder section beam 12 are provided with overlapping protrusions, and the upper deck plate 41/the lower deck plate 42/the resting platform 2 are correspondingly provided with overlapping grooves. And by adopting a lap joint mode, the construction is more convenient on the premise of ensuring the structural reliability.
Further preferably, the resting platform 2 is a prefabricated component, which can further improve the prefabrication degree of the fabricated stairway and simplify the construction. Optionally, the left and right sides of this rest platform 2 are equipped with respectively and keep off the bank, and further can keep off pre-buried railing basis fixed plug-in components on the bank to the railing is pegged graft in the later stage.
The resting platform 2 is supported by a support structure provided on the lower deck plate 42; generally, the support structure comprises a plurality of support columns 31 and a plurality of support beams 32, each support beam 32 being located on top of two of the support columns 31; in this embodiment, as shown in fig. 4, the stair comprises 4 supporting columns 31, the 4 supporting columns 31 are arranged in a square shape and can be respectively arranged corresponding to 4 corners of the resting platform 2, there are two supporting beams 32, and the length direction of the supporting beams 32 is parallel to the length direction of the steps 11, i.e. parallel to the transverse direction of the stair. The support beam 32 is preferably an overhanging rest platform 2, and the extension length thereof is as wide as the bench beam 12, so as to facilitate the lap joint of the bench beam 12.
Further preferably, as shown in fig. 4 and 5, a first inserting portion 321 is disposed at the top of the supporting beam 32, a plurality of second inserting portions are correspondingly disposed on the resting platform 2, and the first inserting portions 321 and the second inserting portions are the same in number and are inserted in one-to-one correspondence. In one embodiment, the first insertion part 321 on the top of the support beam 32 is a tenon, and the second insertion part on the resting platform 2 is a mortise, which are engaged with each other in a joggled manner, preferably, after the two are joggled, the top surface of the tenon is flush with the upper surface of the resting platform 2; of course, it is also feasible that the first inserting-connecting part 321 is a mortise and the second inserting-connecting part is a tenon.
In an alternative embodiment, the supporting columns 31 and the supporting beams 32 are cast-in-place structures, so that the reliability of the supporting structure is ensured. Of course, the supporting beams 31 and/or the supporting beams 32 can also be designed as prefabricated parts; for the scheme that the supporting column 31 is a prefabricated part, wet node connection can be adopted between the supporting column 31 and the lower-layer platform plate 42, for example, node steel bars are reserved on the lower-layer platform plate 42 and at the bottom end of the supporting column 31 respectively, and a cast-in-place through hole which is through up and down can be reserved in the supporting column 31, when the supporting column 31 is installed, the node steel bars at the bottom end of the supporting column are bound with the node steel bars on the lower-layer platform plate 42, then concrete is poured from the cast-in-place through hole in the supporting column 31, and reliable connection between the supporting column 31 and the lower-layer platform plate 42 can be realized.
The specific installation steps of the stair are as follows:
a. the upper layer platform plate 41 and the lower layer platform plate 42 are respectively reserved with lap-joint grooves of the ladder section beam 12, and the support columns 31 and the support beams 32 under the resting platform 2 are cast in situ;
b. mounting a rest platform 2;
c. installing the upper ladder section 1: (1) slotting the two upper bench section beams 12 according to the upper platform plate 41 and assembling the lap joints on the lower support beams 32 of the rest platform 2; (2) sequentially installing the upper steps 11, wherein the steps 11 are required to be installed from top to bottom during installation so as to facilitate the lap joint of the steps 11; (3) installing a slot seal;
d. installing the lower bench 1 by the same method as above;
e. stair decoration, plastering and brick paving;
f. and (5) installing stair railings.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A prefabricated bench, its characterized in that: comprises two prefabricated bench beams and a plurality of prefabricated steps,
the left end and the right end of the prefabricated step are respectively assembled and connected with the prefabricated ladder section beams on the corresponding sides in a tenon spring and tenon groove matching mode;
the prefabricated steps are of a step structure and comprise pedals and shelves which are arranged in an upper-lower two-stage manner; in the two adjacent stages of the prefabricated steps, the pedal of the next stage of the prefabricated steps is at least partially placed on the shelf of the previous stage of the prefabricated steps.
2. The prefabricated staircase sections of claim 1, wherein: the left end and the right end of the prefabricated step are respectively connected with the prefabricated bench beams on the corresponding sides through expansion bolts.
3. The prefabricated staircase sections of claim 1, wherein: the joggle pieces arranged at the left end and the right end of the prefabricated step are all tenon springs.
4. The prefabricated staircase sections of claim 3, wherein: the length of the tenon spring is smaller than that of the mortise, and the exposed slot cavity at the upper part of the mortise is sealed and plugged by the slot.
5. The prefabricated staircase sections of claim 1, wherein: the tenon spring is a dovetail tenon spring.
6. A prefabricated assembled stair comprises a stair section, wherein the upper end and the lower end of the stair section are respectively connected with an upper layer of platform plate and a lower layer of platform plate; or include a plurality of bench, link up through rest platform between two adjacent benches, the top and the upper landing slab of the bench of the top are connected, and its characterized in that is connected with lower floor's landing slab in the bottom of below bench: at least a portion of the ladder sections are prefabricated assembled ladder sections according to any one of claims 1 to 5.
7. The prefabricated staircase of claim 6, wherein: when including a plurality of bench, the rest platform is prefabricated component and supports through locating the bearing structure on the lower floor's landing slab.
8. The prefabricated staircase of claim 7, wherein: the supporting structure comprises a plurality of supporting columns and a plurality of supporting beams, wherein each supporting beam is positioned on the top of two supporting columns; the top of a supporting beam is provided with a first inserting portion, a plurality of second inserting portions are correspondingly arranged on the rest platform, and the first inserting portions are the same in number with the second inserting portions and are inserted in a one-to-one corresponding mode.
9. The prefabricated staircase of claim 8, wherein: the supporting columns and the supporting beams are of cast-in-place structures.
10. The prefabricated staircase of claim 6, wherein: the upper end and the lower end of the ladder section are respectively lapped with the corresponding platform plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022179368.2U CN213837421U (en) | 2020-09-29 | 2020-09-29 | Prefabricated assembled bench and prefabricated assembled stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022179368.2U CN213837421U (en) | 2020-09-29 | 2020-09-29 | Prefabricated assembled bench and prefabricated assembled stair |
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| Publication Number | Publication Date |
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| CN213837421U true CN213837421U (en) | 2021-07-30 |
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| CN202022179368.2U Active CN213837421U (en) | 2020-09-29 | 2020-09-29 | Prefabricated assembled bench and prefabricated assembled stair |
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| CN (1) | CN213837421U (en) |
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- 2020-09-29 CN CN202022179368.2U patent/CN213837421U/en active Active
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