A scissor staircase structure

Abstract

This utility model discloses a scissor-type staircase structure, including main walls on both sides, platform surfaces at corresponding floor positions on the main walls, a partition wall located between the center of the platform surfaces, and a prefabricated staircase connecting the upper and lower platform surfaces on the same side. The prefabricated staircase consists of staircase section one and staircase section two, which are fixedly connected by irregular beams. Staircase section one and staircase section two are rigidly connected to the irregular beams by pouring concrete. Each of staircase section one and staircase section two has a fixed surface on the side near the platform surface, which is rigidly connected to the platform surface by pouring concrete. The irregular beams consist of main beam columns and side beam columns on both sides. Several support columns are provided between the platform surface and the corresponding main beam column, and between the platform surface and the corresponding side beam column. This utility model reduces damage to the prefabricated staircase and effectively enhances its support strength by optimizing the connection method and changing the anchor bolt connection method.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and more specifically to a scissor staircase structure. Background Technology

[0002] With the development of the times and the gradual acceleration of urbanization, the demand for high-rise and super high-rise buildings is increasing. As an indispensable part of such buildings, most buildings use the traditional cast-in-place method for staircases, which involves temporarily setting up formwork on the construction site and pouring reinforced concrete to solidify it. Because this method requires continuous formwork installation, pouring, setting, and demolding, it consumes a lot of time and manpower, increases costs, affects the overall efficiency of building construction, and cannot guarantee the quality of staircases in each construction.

[0003] The existing utility model patent with publication number CN206487087U discloses a scissor-type staircase that is assembled in sections. By standardizing the production and modular assembly of each component in a factory, it ensures the quality and safety of the staircase, saves labor costs, shortens the construction cycle, and facilitates on-site construction and hoisting. It can effectively improve construction efficiency and avoid the messy and disorderly situation on the construction site, which has great economic benefits. At the same time, compared with the scissor-type staircase that is assembled as a whole, its structural design is more convenient for production, transportation and hoisting. However, the anchor bolt fixing method is easy to damage the prefabricated staircase structure. In addition, the prefabricated staircase only provides support by itself, which is not strong enough. Therefore, this utility model proposes a scissor-type staircase structure. Utility Model Content

[0004] The purpose of this utility model is to provide a scissor-type staircase structure, which reduces damage to prefabricated stairs and effectively enhances the support strength of prefabricated stairs by optimizing the connection method and changing the anchor bolt connection method.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A scissor-type staircase structure includes two main walls, platform surfaces on the main walls corresponding to different floors, a partition wall between the center of the platform surfaces, and a prefabricated staircase connecting the upper and lower platform surfaces on the same side. The prefabricated staircase consists of stair section one and stair section two, which are fixedly connected by irregular beams. Stair section one and stair section two are rigidly connected to the irregular beams by pouring concrete. Each of stair section one and stair section two has a fixed surface on the side near the platform surface, which is rigidly connected to the platform surface by pouring concrete. The irregular beams consist of a main beam column and side beam columns on both sides. Several support columns are provided between the platform surface and the corresponding main beam column, and between the platform surface and the corresponding side beam column. Supporting steel bars are fixed at the upper end of the support columns. Several fixing grooves are provided at the lower end of stair section one and stair section two, and the supporting steel bars are inserted into the fixing grooves for fixation.

[0007] By adopting the above technical solution, this utility model has the following advantages:

[0008] The precast staircase of this utility model, with its stair section one and stair section two integrated with the irregular beam, allows for on-site fixation solely through splicing and concrete pouring, effectively shortening the construction period and saving labor costs. Concrete section one and concrete section two replace anchor bolts, connecting the fixing surface and platform surface, as well as the precast staircase and the irregular beam, minimizing damage to the precast staircase. The supporting columns and reinforcing steel columns further enhance the support of the precast staircase, effectively increasing its structural strength.

[0009] Furthermore, the fixed surface is provided with an inner groove 1, and a plurality of through grooves 1 are provided through the lower end of the inner groove 1. The platform surface is provided with an inner groove 2, and a plurality of through grooves 2 are provided at the upper end of the inner groove 2 corresponding to the position of the through groove 1.

[0010] By adopting the above technical solution, this utility model has the following advantages:

[0011] The inner groove 1, inner groove 2, through groove 1 and through groove 2 of this utility model can form a locking mechanism for pouring concrete, so that concrete 1 can be poured inside.

[0012] Furthermore, the concrete is poured into inner trench one, through trench one, inner trench two, and through trench two.

[0013] By adopting the above technical solution, this utility model has the following advantages:

[0014] The concrete component of this invention allows for mechanical interlocking after hardening, effectively improving shear strength compared to anchor bolts.

[0015] Furthermore, the main beam column passes through the partition wall at its center and is fixed to the corresponding floor wall at both ends; one end of the side beam column is fixedly connected to the corresponding partition wall, and the other end is fixedly connected to the corresponding floor wall.

[0016] By adopting the above technical solution, this utility model has the following advantages:

[0017] The design of the main beam and side beams in this invention allows the main beam and side beams to evenly distribute the load to the partition walls and floor walls, further supporting the prefabricated staircase.

[0018] Furthermore, the side beams and columns on both sides are staggered, with the lower end of the stair section one away from the fixed surface abutting against the upper surface of the main beam column, and the lower end of the stair section two away from the fixed surface abutting against the upper surface of the side beam column.

[0019] By adopting the above technical solution, this utility model has the following advantages:

[0020] The main beam and side beams of this utility model serve to support stair section one and stair section two, thereby achieving a connection and fixation between them.

[0021] Furthermore, both stair section one and stair section two have an inner groove three on the upper end of the side away from the fixed surface, and several through grooves three are provided through the lower end of the inner groove three. The main beam column and the side beam column have inner grooves four at corresponding positions, and several through grooves four are provided at the upper end of the inner groove four corresponding to the positions of the through grooves three.

[0022] By adopting the above technical solution, this utility model has the following advantages:

[0023] The inner groove three, inner groove four, through groove three and through groove four of this utility model can form a locking mechanism for pouring concrete, so that concrete can be poured inside.

[0024] Furthermore, the concrete is poured into the inner trench three, through trench three, through trench four and inner trench four.

[0025] By adopting the above technical solution, this utility model has the following advantages:

[0026] The concrete structure of this utility model allows it to form a mechanical interlock after hardening, effectively improving the shear strength compared to anchor bolts. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Figure 1 This is a schematic diagram of the cross-sectional structure of the prefabricated staircase without partition walls in this utility model;

[0029] Figure 2 This is a schematic diagram of the irregular beam structure of this utility model;

[0030] Figure 3 This is a top view of the structure of this utility model;

[0031] Figure 4 This is a top view schematic diagram of the non-prefabricated staircase structure of this utility model.

[0032] Attached reference numerals: 1. Staircase Section 1; 2. Staircase Section 2; 3. Fixed Surface; 301. Inner Groove 1; 302. Through Groove 1; 4. Platform Surface; 401. Inner Groove 2; 402. Through Groove 2; 5. Support Column; 501. Support Reinforcing Steel Column; 6. Main Beam Column; 601. Side Beam Column; 7. Inner Groove 3; 701. Through Groove 3; 8. Inner Groove 4; 801. Through Groove 4; 9. Main Wall; 10. Fixed Groove; 11. Concrete 2; 12. Concrete 1; 13. Partition Wall; 14. Floor Wall Surface. Detailed Implementation

[0033] like Figure 1 and Figure 4 As shown in this specific embodiment, a scissor-type staircase structure includes two main walls 9 on both sides, platform surfaces 4 at corresponding floor positions on the main walls 9, a partition wall 13 located between the centers of the platform surfaces 4, and a prefabricated staircase connecting the upper and lower platform surfaces 4 on the same side. The prefabricated staircase consists of stair section 1 and stair section 2 fixedly connected by irregular beams. Stair section 1 and stair section 2 are rigidly connected to the irregular beams by pouring concrete 11. Stair section 1 and stair section 2 are both provided with a fixing surface 3 on the side near the platform surface 4. The fixing surface 3 is rigidly connected to the platform surface 4 by pouring concrete 12. The irregular beams include main beam columns 6 and side beam columns 601 on both sides. Several support columns 5 are provided between the platform surface 4 and the corresponding main beam column 6, and between the platform surface 4 and the corresponding side beam column 601. Support steel bars 501 are fixedly provided at the upper end of the support columns 5. Several fixing grooves 10 are provided at the lower end of stair section 1 and stair section 2. The support steel bars 501 are inserted into the fixing grooves 10 for fixation.

[0034] With the above design, the stair section 1 and stair section 2 of the prefabricated staircase of this utility model are designed to be fixed on-site only by splicing and pouring concrete, which can effectively shorten the construction period and save labor costs. Concrete section 12 and concrete section 11 of this utility model replace anchor bolts, thereby connecting the fixed surface 3 and the platform surface 4, the prefabricated staircase and the irregular beam, reducing damage to the prefabricated staircase. The support column 5 and the support steel column 501 of this utility model further support the prefabricated staircase and effectively enhance the support strength of the prefabricated staircase.

[0035] like Figures 1 to 4The fixed surface 3 shown has an inner groove 301, and several through grooves 302 are provided through the lower end of the inner groove 301. The platform surface 4 has an inner groove 401, and several through grooves 402 are provided at the upper end of the inner groove 401 corresponding to the positions of the through grooves 302. Concrete 12 is poured into the inner groove 301, through grooves 302, inner groove 401, and through grooves 402. The main beam column 6 passes through the partition wall 13 at its center and is fixed to the corresponding floor wall 14 at both ends. One end of the side beam column 601 is fixedly connected to the corresponding partition wall 13, and the other end is fixedly connected to the corresponding floor wall 14. The two side beam columns 601 intersect. The staircase section 1, which is away from the fixed surface 3, has its lower end abutting against the upper surface of the main beam column 6. The staircase section 2, which is away from the fixed surface 3, has its lower end abutting against the upper surface of the side beam column 601. Both staircase sections 1 and 2 have an inner groove 3 7 on the upper end of the side away from the fixed surface 3. The lower end of the inner groove 3 7 has several through grooves 3 701. The main beam column 6 and the side beam column 601 have corresponding inner grooves 4 8. The upper end of the inner groove 4 8 has several through grooves 4 801 that are connected to the positions of the through grooves 3 701. Concrete 2 11 is poured into the inner groove 3 7, through groove 3 701, through groove 4 801 and inner groove 4 8.

[0036] Through the above configuration, the inner groove 301, inner groove 401, through groove 302, and through groove 402 of this utility model can form a locking mechanism for pouring concrete, allowing concrete 12 to be poured inside. The concrete 12 configuration of this utility model allows it to form a mechanical interlock after hardening, effectively improving its shear strength compared to anchor bolts. The main beam column 6 and side beam column 601 configuration of this utility model allow the main beam column 6 and side beam column 601 to evenly transfer the load to the partition wall 13 and the floor wall 14, further enhancing its supporting function. The function of supporting the precast stairs; the setting of the main beam column 6 and the side beam column 601 of this utility model serves to support the first stair section 1 and the second stair section 2, thereby realizing the connection and fixation between them; the inner groove 3 7, inner groove 4 8, through groove 3 701 and through groove 4 801 of this utility model can form a locking mechanism for pouring concrete, so that concrete 2 11 can be poured into it; the setting of concrete 2 11 of this utility model allows it to form a mechanical interlock after hardening, and the shear strength is effectively improved compared with anchor bolts.

[0037] Working principle: This utility model involves pouring concrete 12 into inner groove 301. Concrete 12 can fill through groove 302, through groove 402, and inner groove 401. After concrete 12 hardens, it forms a concrete pin, achieving a locking fixation between the fixed surface 3 and the platform surface 4. Concrete 11 is poured into inner groove 7. Concrete 11 can fill through groove 701, through groove 801, and inner groove 8. After concrete 11 hardens, it forms a concrete pin, achieving a locking fixation between the precast staircase and the irregular beam. In addition to reducing damage to the structure, it can also strengthen its connection strength and effectively improve tensile strength. When the precast staircase is installed, it is fixed on the support column 5. The setting of the support column 5 can further support the precast staircase and improve the support strength of the precast staircase.

[0038] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A scissors stair structure comprising main walls (9) on both sides, platform surfaces (4) provided at positions corresponding to floors on the main walls (9), partition walls (13) provided between the centers of the platform surfaces (4), and prefabricated stairs connecting the platform surfaces (4) on the same side above and below, characterized in that, The prefabricated staircase consists of stair section one (1) and stair section two (2) fixedly connected by a shaped beam. The stair section one (1) and stair section two (2) are rigidly connected to the shaped beam by pouring concrete two (11). The stair section one (1) and stair section two (2) are provided with a fixed surface (3) on the side near the platform surface (4). The fixed surface (3) is rigidly connected to the platform surface (4) by pouring concrete one (12). The shaped beam consists of a main beam column (6) and side beam columns (601) on both sides. Several support columns (5) are provided between the platform surface (4) and the corresponding main beam column (6), and between the platform surface (4) and the corresponding side beam column (601). The upper end of the support column (5) is fixed with a support steel bar column (501). The lower end of the stair section one (1) and stair section two (2) is provided with several fixing grooves (10). The support steel bar column (501) is inserted into the fixing groove (10) for fixation.

2. A scissor stair structure according to claim 1, wherein The fixed surface (3) is provided with an inner groove 1 (301), and the lower end of the inner groove 1 (301) is provided with several through grooves 1 (302). The platform surface (4) is provided with an inner groove 2 (401), and the upper end of the inner groove 2 (401) is provided with several through grooves 2 (402) at the position corresponding to the through groove 1 (302).

3. A scissor stair structure according to claim 2, wherein The concrete (12) is poured into the inner trench (301), the through trench (302), the inner trench (401), and the through trench (402).

4. The scissor stair structure of claim 1, wherein The main beam column (6) passes through the partition wall (13) at its center and is fixed to the corresponding floor wall (14) at both ends. One end of the side beam column (601) is fixedly connected to the corresponding partition wall (13), and the other end is fixedly connected to the corresponding floor wall (14).

5. A scissor stair structure according to claim 4, wherein The side beams and columns (601) on both sides are staggered. The lower end of the stair section one (1) away from the fixed surface (3) abuts against the upper surface of the main beam column (6), and the lower end of the stair section two (2) away from the fixed surface (3) abuts against the upper surface of the side beam column (601).

6. A scissor stair structure according to claim 5, wherein Both stair section one (1) and stair section two (2) have an inner groove three (7) on the upper end of the side away from the fixed surface (3). The lower end of the inner groove three (7) is provided with several through grooves three (701). The main beam column (6) and the side beam column (601) are provided with inner groove four (8) at corresponding positions. The upper end of the inner groove four (8) is provided with several through grooves four (801) corresponding to the position of the through groove three (701).

7. A scissor stair structure according to claim 6, wherein The concrete 2 (11) is poured into the inner trench 3 (7), through trench 3 (701), through trench 4 (801) and inner trench 4 (8).

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