CN219732566U

CN219732566U - Prefabricated stairwell structure

Info

Publication number: CN219732566U
Application number: CN202321203826.9U
Authority: CN
Inventors: 向黎明; 焦祥梓; 王笑峰; 李检保; 张成武
Original assignee: Shanghai Sirui Construction Technology Co ltd
Current assignee: Shanghai Sirui Construction Technology Co ltd
Priority date: 2023-05-18
Filing date: 2023-05-18
Publication date: 2023-09-22
Anticipated expiration: 2033-05-18

Abstract

The utility model discloses a prefabricated stairwell structure, which comprises a foundation base (1) and a top cover (4), wherein a plurality of layers of shaft components (2) are sequentially overlapped between the foundation base (1) and the top cover (4) from bottom to top, the shaft components (2) adjacent to the upper layer and the lower layer are connected through bolts (54), welding, slurry anchors, grouting sleeves (84) or post-tensioned prestressing, and stair plates (3) which are distributed in a staggered mode and connected end to end are arranged in the shaft components (2). The utility model has the characteristics of stable structure, shock resistance and permanent use.

Description

Prefabricated stairwell structure

Technical Field

The utility model relates to a stairwell, in particular to a prefabricated stairwell structure.

Background

With the reduction of population dividend, the shortage of labor is becoming more serious and the use of prefabricated buildings is becoming more widespread. The assembled building is formed by transferring a large amount of field operation work in a traditional building mode to a factory, processing and manufacturing building components and accessories in the factory, transporting to a building construction site, and assembling and installing on site through a reliable connection mode. The prefabricated building mainly comprises a prefabricated concrete structure, a steel structure, a modern wood structure building and the like, and is representative of a modern industrial production mode because standardized design, industrial production, assembly construction, informatization management and intelligent application are adopted.

In order to pursue rapid construction and cost reduction, the prefabricated stairwell in the fabricated building is generally simpler in structure, and the connecting structure between nodes is not stable enough, so that the tensile capacity is poor, and the overall shock resistance and the safety are poor; and can only be used temporarily, can still demolish after setting up, need consume more manpower and time.

Disclosure of Invention

The utility model aims to provide a prefabricated stairwell structure. The utility model has the characteristics of stable structure, shock resistance and permanent use.

The technical scheme of the utility model is as follows: a prefabricated stairwell structure comprises a foundation base and a top cover, wherein a plurality of layers of shaft components are sequentially overlapped between the foundation base and the top cover from bottom to top, adjacent shaft components on the upper layer and the lower layer are connected through bolts, welding, slurry anchors, grouting sleeves or post-tensioning prestress, and stair plates which are distributed in a staggered mode and connected end to end are arranged in the shaft components.

In the prefabricated stairwell structure, a first slurry layer is arranged between the upper layer and the lower layer of adjacent shaft components, a first blocking layer is arranged on the outer side of the first slurry layer, a mounting hand hole is formed in the inner wall of the upper layer of shaft component, and a bolt penetrating through the first slurry layer and being connected with the lower layer of shaft component is arranged in the mounting hand hole.

In the prefabricated stairwell structure, a plurality of connecting embedded parts are arranged between the upper layer and the lower layer of adjacent shaft components, adjusting gaskets are arranged between the connecting embedded parts, connecting steel plates are arranged on the outer sides of the connecting embedded parts, and welding seams are formed between the connecting steel plates and the outer walls of the connecting embedded parts and the shaft components.

In the prefabricated stairwell structure, a second slurry setting layer is arranged between the upper layer and the lower layer of adjacent shaft components, a second blocking layer is arranged on the outer side of the second slurry setting layer, a first grouting channel is arranged in the wall surface of the upper layer of shaft component, connecting steel bars penetrating through the second slurry setting layer and extending to the wall surface of the lower layer of shaft component are arranged in the first grouting channel, and first slurry is filled between the first grouting channel and the connecting steel bars.

In the prefabricated stairwell structure, a grouting layer is arranged between the upper layer and the lower layer of adjacent shaft components, a third blocking layer is arranged on the outer side of the grouting layer, a second grouting channel is arranged in the wall surface of the upper layer of shaft component, a sleeve extending to the wall surface of the lower layer of shaft component through the grouting layer is arranged in the second grouting channel, and second slurry is filled between the second grouting channel and the sleeve.

In the foregoing prefabricated stairwell structure, a third slurry layer is disposed between the upper and lower adjacent shaft members, a fourth plugging layer is disposed on the outer side of the third slurry layer, and a prestressed cable extending into the wall surface of the next shaft member through the third slurry layer is disposed in the wall surface of the upper shaft member.

In the above-mentioned prefabricated stairwell structure, two sides of the inner wall of the shaft member are respectively provided with a plurality of layers of landing boards, and the outer end of each layer of landing board is connected with the landing boards on the upper layer and the lower layer.

In one such prefabricated stairwell structure, the landing plates are connected to the shaft member by means of landing beams, brackets and/or lugs.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model is a fully prefabricated component, the size of the single component can be split according to the installation and transportation requirements, wherein the vertical connection of shaft components adopts bolts, welding, slurry anchors, grouting sleeves or post-tensioning prestressing to be connected into a whole, so that reliable force transmission connection is formed, tension, compression and shearing force can be simultaneously borne, the utility model can be used for a structure with the anti-seismic design requirement, the node structure is simple, the construction is convenient, and the utility model is suitable for the assembly type building of industry and logistics with the rapid construction requirement.

The utility model can quickly form a vertical construction channel in the construction process, is safe and reliable, and can be used as a permanent stairwell after completion.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic illustration of the connection between upper and lower adjacent wellbore components at A in FIG. 1 of example 1;

FIG. 3 is a schematic illustration of the connection between upper and lower adjacent wellbore components at A in FIG. 1 of example 2;

FIG. 4 is a schematic illustration of the connection between upper and lower adjacent wellbore components at A in FIG. 1 of example 3;

FIG. 5 is a schematic illustration of the connection between upper and lower adjacent wellbore components at A in FIG. 1 of example 4;

FIG. 6 is a schematic illustration of the connection between upper and lower adjacent wellbore members at A in FIG. 1 of example 5.

The marks in the drawings are: 1. a base; 2. a wellbore component; 3. stair boards; 31. a platform plate; 32. stairs beams; 33. a bracket; 4. a top cover; 51. a first slurry layer; 52. a first blocking layer; 53. a mounting hand hole; 54. a bolt; 61. connecting the embedded parts; 62. adjusting the gasket; 63. connecting steel plates; 64. welding seams; 71. a second slurry layer; 72. a second blocking layer; 73. a first grouting channel; 74. connecting steel bars; 75. a first slurry; 81. a grouting layer; 82. a third blocking layer; 83. a second grouting channel; 84. a sleeve; 85. a second slurry; 91. a third slurry layer; 92. a fourth blocking layer; 93. prestress wire rope.

Detailed Description

The utility model is further illustrated by the following figures and examples, which are not intended to be limiting.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1:

as shown in fig. 1 and 2, a prefabricated stairwell structure comprises a foundation base 1 and a top cover 4, wherein a plurality of layers of shaft members 2 are sequentially overlapped between the foundation base 1 and the top cover 4 from bottom to top, the shaft members 2 adjacent to the upper layer and the lower layer are connected through bolts 54, and stair plates 3 which are distributed in a staggered mode and are connected end to end are arranged in the shaft members 2. The foundation base 1 is of a cast-in-situ structure and is connected with the shaft member 2 through reserved steel bars, embedded parts or bolts 54, and grouting, welding or tightening through gaskets and nuts are required after installation is completed.

A first slurry layer 51 is arranged between the upper and lower layers of adjacent shaft members 2, a first blocking layer 52 is arranged on the outer side of the first slurry layer 51, a mounting hand hole 53 is arranged on the inner wall of the upper layer of shaft member 2, and a bolt 54 penetrating through the first slurry layer 51 and connected with the lower layer of shaft member 2 is arranged in the mounting hand hole 53.

A plurality of layers of platform boards 31 are arranged on two sides of the inner wall of the shaft member 2, and the outer end of each layer of platform board 31 is connected with the stair boards 3 on the upper layer and the lower layer.

The bottom of the landing plate 31 is provided with a landing beam 32, and the landing plate 31 is connected to the shaft member 2 via the landing beam 32. The embedded parts, bolts or steel bars reserved on the stair beams 32 are reliably connected with the platform plate 31. The sides of the landing beam 32 may be provided with burls or bolts to form a reliable tie with the shaft member depending on the stability requirements out of the stairwell plane.

The platform plate 31 is also connected with the inner side wall of the shaft member 2 through brackets 33 and/or lugs, positioning steel bars, bolts or embedded parts are reserved on the brackets 33 and/or lugs, and the brackets and/or lugs are in reliable force transmission connection with the shaft member 2 by grouting, welding or tightening through gaskets and nuts.

Example 2:

as shown in fig. 1 and 3, the prefabricated stairwell structure comprises a foundation base 1 and a top cover 4, wherein a plurality of layers of shaft components 2 are sequentially overlapped between the foundation base 1 and the top cover 4 from bottom to top, the shaft components 2 adjacent to the upper layer and the lower layer are connected through welding, and stair plates 3 which are distributed in a staggered mode and are connected end to end are arranged in the shaft components 2.

A plurality of connecting embedded parts 61 are arranged between the upper layer and the lower layer of adjacent shaft components 2, adjusting gaskets 62 are arranged between the connecting embedded parts 61, a connecting steel plate 63 is arranged on the outer side of the connecting embedded parts 61, and welding seams 64 are formed by welding the connecting steel plate 63, the connecting embedded parts 61 and the outer walls of the shaft components 2.

Example 3:

as shown in fig. 1 and 4, the prefabricated stairwell structure comprises a foundation base 1 and a top cover 4, wherein a plurality of layers of shaft components 2 are sequentially overlapped between the foundation base 1 and the top cover 4 from bottom to top, the shaft components 2 adjacent to the upper layer and the lower layer are connected through slurry anchors, and stair plates 3 which are distributed in a staggered mode and are connected end to end are arranged in the shaft components 2.

A second slurry setting layer 71 is arranged between the upper and lower layers of adjacent shaft members 2, a second blocking layer 72 is arranged on the outer side of the second slurry setting layer 71, a first grouting channel 73 is arranged in the wall surface of the upper layer of shaft member 2, connecting reinforcing steel bars 74 penetrating through the second slurry setting layer 71 and extending to the wall surface of the lower layer of shaft member 2 are arranged in the first grouting channel 73, and first slurry 75 is filled between the first grouting channel 73 and the connecting reinforcing steel bars 74.

Example 4:

as shown in fig. 1 and 5, a prefabricated stairwell structure comprises a foundation base 1 and a top cover 4, wherein a plurality of layers of shaft components 2 are sequentially overlapped between the foundation base 1 and the top cover 4 from bottom to top, the shaft components 2 adjacent to the upper layer and the lower layer are connected through grouting sleeves 84, and stair plates 3 which are distributed in a staggered mode and are connected end to end are arranged in the shaft components 2.

A grouting layer 81 is arranged between the upper and lower layers of adjacent shaft members 2, a third blocking layer 82 is arranged on the outer side of the grouting layer 81, a second grouting channel 83 is arranged in the wall surface of the upper layer of shaft member 2, a sleeve 84 extending to the wall surface of the lower layer of shaft member 2 through the grouting layer 81 is arranged in the second grouting channel 83, and a second slurry 85 is filled between the second grouting channel 83 and the sleeve 84.

Example 5:

as shown in fig. 1 and 6, a prefabricated stairwell structure comprises a foundation base 1 and a top cover 4, wherein a plurality of layers of shaft components 2 are sequentially overlapped between the foundation base 1 and the top cover 4 from bottom to top, the shaft components 2 adjacent to the upper layer and the lower layer are connected through post-tensioning prestress, and stair plates 3 which are distributed in a staggered mode and are connected end to end are arranged in the shaft components 2.

A third slurry layer 91 is arranged between the upper and lower layers of adjacent shaft components 2, a fourth blocking layer 92 is arranged on the outer side of the third slurry layer 91, and a prestressed steel cable 93 which passes through the third slurry layer 91 and extends to the wall surface of the shaft component 2 of the next layer is arranged in the wall surface of the shaft component 2 of the upper layer.

The utility model is not described in detail in the prior art and is not specifically described herein.

Claims

1. A prefabricated stairwell structure, characterized in that: including base (1) and top cap (4), from bottom to top has superimposed a plurality of layers pit shaft component (2) in proper order between base (1) and the top cap (4), through bolt (54), welding, thick liquid anchor, grout sleeve (84) or post-tensioned prestressing force connection between the adjacent pit shaft component (2) of upper and lower floor, be equipped with staggered distribution and head and tail connected stair board (3) in pit shaft component (2).

2. A prefabricated stairwell structure according to claim 1, characterised in that: a first slurry layer (51) is arranged between the upper layer and the lower layer of adjacent shaft components (2), a first blocking layer (52) is arranged on the outer side of the first slurry layer (51), a mounting hand hole (53) is arranged on the inner wall of the upper layer of shaft components (2), and a bolt (54) penetrating through the first slurry layer (51) and being connected with the lower layer of shaft components (2) is arranged in the mounting hand hole (53).

3. A prefabricated stairwell structure according to claim 1, characterised in that: a plurality of connecting embedded parts (61) are arranged between the upper layer and the lower layer adjacent shaft components (2), adjusting gaskets (62) are arranged between the connecting embedded parts (61), connecting steel plates (63) are arranged on the outer sides of the connecting embedded parts (61), and welding seams (64) are formed by welding the connecting steel plates (63) with the connecting embedded parts (61) and the outer walls of the shaft components (2).

4. A prefabricated stairwell structure according to claim 1, characterised in that: be equipped with second between upper and lower layer adjacent pit shaft component (2) and sit thick liquid layer (71), the outside on second sits thick liquid layer (71) is equipped with second shutoff layer (72), is equipped with first grout channel (73) in the wall of upper pit shaft component (2), is equipped with in first grout channel (73) and passes second and sit thick liquid layer (71) and extend to connecting reinforcement (74) in the wall of pit shaft component (2) of next floor, and it has first thick liquids (75) to fill between first grout channel (73) and the connecting reinforcement (74).

5. A prefabricated stairwell structure according to claim 1, characterised in that: be equipped with grout layer (81) between upper and lower layer adjacent pit shaft component (2), the outside of grout layer (81) is equipped with third shutoff layer (82), is equipped with second grout channel (83) in the wall of pit shaft component (2) of upper strata, is equipped with sleeve (84) in the wall of pit shaft component (2) of passing grout layer (81) extension to the lower floor in second grout channel (83), is filled with second thick liquids (85) between second grout channel (83) and sleeve (84).

6. A prefabricated stairwell structure according to claim 1, characterised in that: a third slurry layer (91) is arranged between the upper and lower layers of adjacent shaft components (2), a fourth blocking layer (92) is arranged on the outer side of the third slurry layer (91), and a prestressed steel cable (93) which penetrates through the third slurry layer (91) and extends into the wall surface of the lower layer of shaft component (2) is arranged in the wall surface of the upper layer of shaft component (2).

7. A prefabricated stairwell structure according to claim 1, characterised in that: a plurality of layers of platform boards (31) are arranged on two sides of the inner wall of the shaft component (2), and the outer end of each layer of platform board (31) is connected with the stair boards (3) on the upper layer and the lower layer.

8. A prefabricated stairwell structure according to claim 7, characterised in that: the landing plate (31) is connected to the shaft component (2) by means of landing beams (32), brackets (33) and/or lugs.