Light and thin externally-hung reinforced concrete stair without stair columns and edge sealing beams

Abstract

The utility model discloses a light and thin externally-hung reinforced concrete stair without a stair column and an edge sealing beam, which has the advantages that the overall appearance of a building is attractive, the construction is convenient, and the use length and clear height of a stair rest platform are not limited. The side convex stair structure comprises a building, the floor height of the building is larger than two floors, one outer wall of the building is a shear wall, and the side convex stair structure is characterized in that a plurality of sets of side convex stair reinforcing steel bars are preset on the corresponding shear wall before concrete pouring, and stair steps are formed by pouring concrete outside the side convex stair reinforcing steel bars; the step stairs formed after concrete is poured into each group of side convex stair reinforcing steel bars form a group of stairs, each group of stairs is used for connecting adjacent floors, and the highest step of each group of stairs is connected with the corresponding outer side stair rest platform of the opposite upper layer of the adjacent floors; the lowest step of each group of stairs is connected with the corresponding outer side stair rest platform of the opposite lower layer of the adjacent layer; the stairs are sequentially arranged at intervals from bottom to top.

Description

Technical Field

[0001] The utility model relates to the technical field of external staircase structures, in particular to a thin and light external reinforced concrete staircase without stair columns or edge beams. Background Art

[0002] In the construction industry, some buildings need to be designed with external staircases. The external staircases in the prior art need to be equipped with ladder columns and edge beams, which makes the facade look more complicated and visually less beautiful. In addition, the setting of ladder columns limits the usable length of the stair rest platform, and the setting of ladder beams and edge beams also limits the usable net height of the stair rest platform, causing inconvenience in use. For this reason, it is urgent to develop an external staircase that can improve the aesthetics and make the usable length and net height of the stair rest platform unrestricted. Summary of the invention

[0003] In view of the above problems, the utility model provides a thin and light external reinforced concrete staircase without stair columns and edge beams, which has an overall beautiful architectural appearance and is easy to construct, and the usable length and clear height of the stair rest platform are not limited.

[0004] A thin and light external reinforced concrete staircase without staircase columns and edge beams, comprising a building, the building having a floor height greater than the second floor, one of the exterior walls of the building being a shear wall, characterized in that:

[0005] The corresponding shear wall is preset with several groups of side-convex staircase steel bars before concrete pouring. The stair treads are formed by pouring concrete on the outside of the side-convex staircase steel bars. The steps and stairs formed after each group of side-convex staircase steel bars are poured with concrete constitute a group of stairs. Each group of stairs is used to connect adjacent floors. The highest step of each group of stairs is connected to the corresponding outer staircase rest platform of the relatively upper layer of the adjacent layer, and the lowest step of each group of stairs is connected to the corresponding outer staircase rest platform of the relatively lower layer of the adjacent layer; several groups of stairs are arranged in sequence from bottom to top.

[0006] It is further characterized by:

[0007] Each set of stairs has the same structure, including an upper step group, a middle platform, and a lower step group;

[0008] The height, depth and length of each step in the upper step group are the same;

[0009] The height, depth and length of each step in the lower step group are the same;

[0010] The height, depth and length of each step in the upper step group and each step in the lower step group are the same, which makes the construction convenient and quick;

[0011] The starting position of the lowest step in the lower step group is retracted according to the width of the shear wall and the height requirements of the floor, ensuring that the total number of steps and each step meet the design standards, while allowing the corresponding outer stair rest platform relative to the lower floor to be expanded;

[0012] A guardrail is provided on the outside of each set of stairs, and the guardrail is arranged sequentially along the direction of travel of the stairs to ensure the safety of walkers.

[0013] After the adoption of the utility model, a thin and light external reinforced concrete staircase without stair columns and edge beams can be realized when the outer wall of the building is a shear wall, and the application range is wide. The external staircase without stair columns and edge beams makes the use length and net height of the stair rest platform not limited. Under the premise of unchanged building floor height, a larger rest platform space can be obtained. The external staircase has a thin and light and beautiful shape, and the facade effect does not have complicated stair columns, stair beams, and edge beam structures. At the same time, the external reinforced concrete staircase is designed, constructed, and used at the same time as the building, which improves the economy of the building and is beneficial to later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of a partial floor of a specific embodiment of the utility model (the guardrail of the staircase is not drawn);

[0015] Figure 2 It is a schematic diagram of the top view structure of a specific embodiment of the utility model;

[0016] The names corresponding to the serial numbers in the figure are as follows:

[0017] Building 100, building interior space 101, shear wall 1, staircase 2, upper step group 21, highest step 211, middle platform 22, lower step group 23, lowest step 231, stair rest platform 3, building exterior window 4, guardrail 5, tile 6. DETAILED DESCRIPTION

[0018] A thin and light external reinforced concrete staircase without staircase columns and edge beams, Figure 1 The invention discloses a building 100, which comprises a building 100, wherein the building 100 has a floor height greater than two floors, wherein one of the exterior walls of the building 100 is a shear wall 1, wherein the corresponding shear wall 1 is preset with a plurality of groups of side-convex stair steel bars before concrete pouring, wherein the stair treads are formed by pouring concrete outside the side-convex stair steel bars, and each group of side-convex stair steel bars is poured with concrete to form a group of stairs 2, wherein each group of stairs 2 is used to connect adjacent floors, wherein the highest step 211 of each group of stairs 2 is connected to a corresponding outer stair rest platform 3 of an adjacent upper floor, and the lowest step 231 of each group of stairs 2 is connected to a corresponding outer stair rest platform 3 of an adjacent lower floor; and the plurality of groups of stairs 2 are arranged in sequence from bottom to top.

[0019] During specific implementation, the outer wall of the building 100 with the stair landing 3 is also a shear wall. The corresponding stair landing 3 can be connected to the internal building space 101 of the corresponding layer, so that the user can move across two or more floors between the upper and lower floors of the stairs. The building 100 is also provided with external windows 4 on each side of the shear wall 1 with the stairs 2.

[0020] In specific implementation, each set of stairs 2 has the same structure, which includes an upper step group 21, a middle platform 22, and a lower step group 23;

[0021] The height, depth and length of each step in the upper step group 21 are the same;

[0022] The height, depth and length of each step in the lower step group 23 are the same;

[0023] The height, depth and length of each step in the upper step group 21 and each step in the lower step group 23 are the same, which makes the construction convenient and quick;

[0024] The starting position of the lowest step 231 in the lower step group 23 is retracted according to the width of the shear wall 1 and the height requirements of the floor, ensuring that the total number of steps and each step meet the design standards, while allowing the corresponding outer stair rest platform 3 relative to the lower floor to be expanded;

[0025] A guardrail 5 is provided on the outer side of each set of stairs 2, and the guardrail 5 is arranged in sequence along the travel direction of the stairs 2 to ensure the safety of the walkers.

[0026] In a specific embodiment, the upper surface of the staircase 2 and the upper surface of the staircase rest platform 3 on the outside of each floor are paved with ceramic tiles 6 to ensure the overall appearance and neatness.

[0027] The beneficial effects are as follows: the thin and light external reinforced concrete staircase has no columns and no edge beams, which can be realized when the outer wall of the building is a shear wall, and has a wide range of applications. The external staircase without columns and edge beams makes the use length and net height of the stair rest platform unlimited. On the premise that the building floor height remains unchanged, a larger rest platform space can be obtained. The external staircase is thin and light and beautiful in shape, and there is no complicated column, beam, and edge beam structure in the facade effect. At the same time, the external reinforced concrete staircase is designed, constructed, and used at the same time as the building, which improves the economy of the building and is conducive to later maintenance.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A thin and light external reinforced concrete staircase without staircase columns and edge beams, comprising a building, the building having a floor height greater than the second floor, one of the exterior walls of the building being a shear wall, characterized in that: The corresponding shear wall is preset with several groups of side-convex staircase steel bars before concrete pouring. The stair treads are formed by pouring concrete on the outside of the side-convex staircase steel bars. The steps formed by pouring concrete on each group of side-convex staircase steel bars constitute a group of stairs. Each group of stairs is used to connect adjacent floors. The highest step of each group of stairs is connected to the corresponding outer staircase rest platform of the relatively upper layer of the adjacent layer, and the lowest step of each group of stairs is connected to the corresponding outer staircase rest platform of the relatively lower layer of the adjacent layer; several groups of stairs are arranged in sequence from bottom to top.

2. According to claim 1, a thin and light external reinforced concrete staircase without stair columns and edge beams, characterized in that: Each set of stairs has the same structure, including an upper step group, a middle platform, and a lower step group.

3. The thin and light external reinforced concrete staircase without stair columns and edge beams according to claim 2 is characterized by: The height, depth and length of each step in the upper step group are the same.

4. The thin and light external reinforced concrete staircase without stair columns and edge beams according to claim 3 is characterized by: The height, depth and length of each step in the lower step group are the same.

5. The thin and light external reinforced concrete staircase without stair columns and edge beams according to claim 4 is characterized in that: The height, depth and length of each step in the upper step group and each step in the lower step group are the same.

6. The thin and light external reinforced concrete staircase without stair columns and edge beams according to claim 2 is characterized by: The starting position of the lowest step in the lower step group is retracted according to the width of the shear wall and the height requirements of the floor.

7. The thin and light external reinforced concrete staircase without stair columns and edge beams according to claim 2 is characterized by: A guardrail is provided on the outer side of each set of stairs, and the guardrails are arranged sequentially along the travel direction of the stairs.

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