Underground engineering entrance and exit part stair step foundation plate

Abstract

The utility model provides an underground engineering entrance and exit opening stair step foundation plate, which relates to the technical field of building construction, and comprises a transverse plate, the transverse plate is arranged below an opening decoration platform layer, is parallel to the opening decoration platform layer, and is fixedly connected with an opening end wall; the L-shaped plate is perpendicular to and fixedly connected with the end, close to the outdoor terrace, of the transverse plate, and the other end of the L-shaped plate extends in the direction of the outdoor terrace. By the adoption of the structure of the foundation plate, support can be provided for the upper step when the foundation settles, cracking of the stair step is effectively avoided, the step is laid after an outdoor terrace is laid, it is guaranteed that the step is evenly and equally divided, and the use experience feeling of pedestrians is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a stair tread foundation plate at the entrance of an underground project. Background Art

[0002] In the prior art, when stair treads are cast with reinforced concrete, in order to avoid the secondary delivery of steel bars and concrete, the stair treads are generally constructed before the outdoor floor paving. As a result, the height of the lowest step of the stair treads often changes after the outdoor floor paving is completed, resulting in uneven steps, affecting the walking experience of pedestrians. If the stair treads are cast with bricks, stone masonry and plain concrete, the stair treads often crack due to uneven settlement of the foundation, affecting the walking safety of pedestrians. Utility Model Content

[0003] The purpose of the utility model is to provide a stair tread foundation plate for the entrance and exit of an underground project to improve the above-mentioned problem. In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows:

[0004] In a first aspect, the present application provides a stair tread foundation plate for an underground engineering entrance, comprising:

[0005] A transverse plate, which is arranged below the mouth decoration platform layer and is parallel to the mouth decoration platform layer, and is fixedly connected to the mouth end wall;

[0006] An L-shaped plate is perpendicular and fixedly connected to one end of the transverse plate close to the outdoor floor, and the other end of the L-shaped plate extends toward the outdoor floor.

[0007] Furthermore, the steel bars of the transverse plate are connected to the steel bars of the mouth end wall by anchoring.

[0008] Furthermore, the end of the transverse plate close to the outdoor floor does not exceed the edge of the opening decoration platform layer, and the relative distance is a set threshold.

[0009] Furthermore, one end of the L-shaped plate away from the transverse plate is arranged under the outdoor floor and parallel to the outdoor floor.

[0010] Furthermore, the end of the L-shaped plate away from the transverse plate is not less than 0.2m away from the plane of the outdoor floor.

[0011] Furthermore, the distance between one end of the L-shaped plate away from the transverse plate and the edge of the outdoor floor is not less than 0.3m.

[0012] Furthermore, the side edges of the transverse plate are fixedly connected to the L-shaped plate.

[0013] Furthermore, the materials of stair treads are brick, stone, plain concrete, wood, and metal.

[0014] Furthermore, the stair treads are laid above the L-shaped plate.

[0015] The beneficial effects of the utility model are:

[0016] The utility model adopts a basic plate structure, which can provide support for the upper steps when the foundation settles and effectively avoid the cracking of the stair steps. The steps are paved after the outdoor floor is laid to ensure that the steps are evenly divided, thereby improving the pedestrian experience.

[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the embodiments of the utility model. The purpose and other advantages of the utility model can be achieved and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A longitudinal section view of a stair tread foundation plate at an entrance of an underground project described in an embodiment of the utility model;

[0020] Figure 2 It is a plan view of the stair tread foundation plate at the entrance of an underground project described in an embodiment of the utility model.

[0021] Markings in the figure:

[0022] 1. Horizontal board; 2. L-shaped board; 3. Entrance decoration platform layer; 4. Stair treads; 5. Outdoor floor; 6. Entrance end wall. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0024] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present utility model, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0025] Embodiment 1:

[0026] See also Figure 1 This embodiment provides a stair tread foundation plate for an underground engineering entrance, including:

[0027] A transverse plate, wherein the transverse plate 1 is arranged below the mouth decoration platform layer 3 and is parallel to the mouth decoration platform layer 3, and the transverse plate 1 is fixedly connected to the mouth end wall 6;

[0028] The L-shaped plate 2 is perpendicularly and fixedly connected to one end of the transverse plate 1 close to the outdoor floor 5 , and the other end of the L-shaped plate 2 extends toward the outdoor floor 5 .

[0029] When in use, the transverse plate 1 is fixed below the entrance decoration platform layer 3 and parallel to it, the L-shaped plate 2 is fixedly connected to the transverse plate 1, and after the outdoor floor 5 is laid, the stair treads 4 are laid on the L-shaped plate 2, which can ensure that the stair treads 4 are evenly divided. The base plate composed of the transverse plate 1 and the L-shaped plate 2 can be firmly connected to the entrance end wall 6 when the foundation collapses, providing support for the stair treads 4 to avoid breakage and improve the pedestrian experience.

[0030] Furthermore, the steel bars of the transverse plate 1 are fixedly connected with the steel bars of the mouth end wall 6 by anchoring; when the mouth end wall 6 is manufactured, the steel bars of the transverse plate 1 can be anchored in the mouth end wall 6, and when the concrete is poured, they are poured at the same time, which can ensure the firmness of the connection between the transverse plate 1 and the mouth end wall 6.

[0031] Furthermore, one end of the transverse board 1 close to the outdoor floor 5 does not exceed the edge of the opening decoration platform layer 3, and the relative distance is a set threshold; the edge of the transverse board 1 usually does not exceed the edge of the opening decoration platform layer 3, and the exceeding part of the transverse board 1 will affect the normal laying of the stair treads 4.

[0032] Furthermore, one end of the L-shaped plate 2 away from the transverse plate 1 is arranged under the outdoor floor 5 and parallel to the outdoor floor 5 .

[0033] Furthermore, the end of the L-shaped plate 2 away from the transverse plate 1 is not less than 0.2 m away from the plane of the outdoor floor 5.

[0034] Furthermore, the distance between one end of the L-shaped board 2 away from the transverse board 1 and the edge of the outdoor floor 5 is not less than 0.3m; the number of stair treads 4 is calculated according to the height difference between the entrance and exit decoration platform layer 3 and the outdoor floor 5. Normally, a distance of one or two steps is reserved outside the lowest step as the length of the L-shaped board 2 away from the transverse board 1, ensuring that enough space is reserved for installing the stair treads 4.

[0035] Furthermore, the sides of the transverse plate 1 are fixedly connected to the L-shaped plate 2; Figure 2 As shown, it is a plan view of the base plate of the entrance stair steps. Stair steps 4 will be installed in all directions outward from the entrance and exit, so L-shaped plates 2 will be installed to provide a support platform for the installation of the pedals.

[0036] Furthermore, the material of the stair tread 4 is brick, stone strip, plain concrete, wood, and metal. After the horizontal plate 1 and the L-shaped plate 2 are installed, the stair tread 4 is set on the L-shaped plate 2. The tread does not need to be affected by the collapse of the foundation. Therefore, brick, stone strip, plain concrete, wood and other lower strength materials can be used without reinforced concrete, which can save material costs.

[0037] Furthermore, the stair treads 4 are laid on top of the L-shaped plate 2 .

[0038] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0039] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A stair tread foundation plate at the entrance of an underground project, characterized in that: include: A transverse plate, wherein the transverse plate (1) is arranged below the mouth decoration platform layer (3) and is parallel to the mouth decoration platform layer (3), and the transverse plate (1) is fixedly connected to the mouth end wall (6); An L-shaped plate (2), wherein the L-shaped plate (2) is perpendicularly and fixedly connected to one end of the transverse plate (1) close to the outdoor floor (5), and the other end of the L-shaped plate (2) extends in the direction of the outdoor floor (5).

2. The stair tread foundation plate for the entrance of an underground project according to claim 1 is characterized in that The steel bars of the transverse plate (1) are connected to the steel bars of the mouth end wall (6) by anchoring.

3. The stair tread foundation plate for the entrance of an underground project according to claim 1 is characterized in that , one end of the transverse plate (1) close to the outdoor floor (5) does not exceed the edge of the mouth decoration platform layer (3), and the relative distance is a set threshold.

4. The stair tread foundation plate for the entrance of an underground project according to claim 1 is characterized in that The end of the L-shaped plate (2) away from the transverse plate (1) is arranged under the outdoor floor (5) and parallel to the outdoor floor (5).

5. The stair tread foundation plate for the entrance of an underground project according to claim 4, characterized in that The end of the L-shaped plate (2) away from the transverse plate (1) is at least 0.2 m away from the plane of the outdoor floor (5).

6. The stair tread foundation plate for the entrance of an underground project according to claim 5, characterized in that The distance between the end of the L-shaped plate (2) away from the transverse plate (1) and the edge of the outdoor floor (5) is not less than 0.3 m.

7. The stair tread foundation plate for the entrance of an underground project according to claim 1, characterized in that The side edges of the transverse plate (1) are fixedly connected to the L-shaped plate (2).

8. The stair tread foundation plate for the entrance of an underground project according to claim 1, characterized in that ,The materials of stair treads (4) are brick, stone strips, plain concrete, wood, and metal.

9. The stair tread foundation plate for the entrance of an underground project according to claim 8, characterized in that: The stair treads (4) are laid above the L-shaped plate (2).

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