Plate-type and beam-type combined stair structure for subway station
By using a combination of slab and beam staircase structures in subway stations, with slab staircases in the lower section and beam staircases in the upper section, the stability and safety issues of staircases under different staircase width and span requirements are solved, achieving an efficient and economical staircase design.
Patent Information
- Application Number
- CN202520363996.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-04
AI Technical Summary
Existing staircases suffer from compromised overall stability and lifespan under varying requirements for stair width and span, posing safety hazards.
The staircase adopts a combination of slab and beam structures. The lower section uses a simple slab staircase, while the upper section uses a beam staircase with strong load-bearing capacity. The overall stability and load-bearing capacity are enhanced by connecting the stair beams and columns.
It improves the overall performance and adaptability of the staircase, reduces construction complexity and material costs, and ensures safe use and efficient passage under high pedestrian density.
Smart Images
Figure CN223813865U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to stair structure technical field, especially for a kind of plate type and beam type combined stair structure for subway station. BACKGROUND
[0002] Plate stair is the most widely used stair form in subway station at present, which can be used for single-run stair, double-run stair, three-run stair, etc. It has the advantages of simple stress and convenient construction. Plate stair is composed of stair section plate, platform plate and platform beam. Plate stair considers the stair as a plate, and the two ends of the plate are supported on the edge beam of the rest platform, and the rest platform is supported on the wall or stair column. Plate stair is used in the case of small span and small stair load.
[0003] Beam stair is a kind of stair, in which the inclined beam of the stair is provided with inclined beams, and the two ends of the inclined beam are supported on the horizontal stair beam, and the horizontal stair beam is supported on the stair wall or column, thereby forming a beam stair. Its characteristics are that it is more economical when the stair section is long, but the formwork and construction are more complex than plate stair. Double-beam stair generally has two inclined stair beams, and the two ends of the step plate are integrally connected with the inclined stair beam. However, when the span is large, the cross section of the inclined beam is large, and the appearance of the stair is not beautiful.
[0004] In the case of different stair section widths and span requirements, the overall stability and service life of the stair are affected, and there are safety hazards. Therefore, a plate and beam combined stair structure for subway station is provided. CONTENT OF THE UTILITY MODEL
[0005] The main purpose of the utility model is to provide a plate and beam combined stair structure for subway station, to solve the problem of overall stability and service life of the stair being affected and having safety hazards in the case of different stair section widths and span requirements in the related art.
[0006] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a plate and beam combined stair structure for subway station is provided, which comprises a rest platform plate, one end of the rest platform plate is provided with an upper stair section using beam stair above, both sides of the rest platform plate are symmetrically provided with lower stair sections using plate stair, the bottom of the rest platform plate is provided with a plurality of stair columns, a plurality of stair beams are fixedly arranged on the upper stair section, and the stair beams are anchored into the corresponding stair columns.
[0007] Further, the stair column comprises a first stair column fixedly arranged at the four corner edges of the bottom of the rest platform plate, and a second stair column fixedly arranged at the midpoint of the bottom of one end of the rest platform plate.
[0008] Further, a platform beam is fixedly arranged around the rest platform plate, and the first and second ladder columns are fixedly arranged below the platform beam.
[0009] Further, the ladder beam comprises upper section side ladder beams fixedly arranged on both sides of the upper ladder section, and an upper section middle ladder beam fixedly arranged between the upper section side ladder beams.
[0010] Further, the upper ladder section is fixedly provided with a floor plate at one end, and the floor plate is fixedly provided with a floor beam near one side of the upper ladder section; and the lower ladder section is fixedly provided with a bottom plate at the bottom.
[0011] Further, the upper section side ladder beam is anchored at the lower end of the longitudinal stress reinforcement, and the upper section side ladder beam is anchored at the upper end of the longitudinal stress reinforcement.
[0012] Further, the upper section middle ladder beam is anchored at the lower end of the longitudinal stress reinforcement, and the upper section middle ladder beam is anchored at the upper end of the longitudinal stress reinforcement.
[0013] Further, the width and span of the upper ladder section are greater than the width and span of the lower ladder section.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] In the plate and beam combined stair structure for the subway station, the lower ladder section adopts the plate stair with simple structure and convenient construction, which not only meets the basic traffic demand, but also reduces the cost; and the upper ladder section adopts the beam stair with strong bearing capacity and good stability, which ensures the safe use under high passenger flow density; the combination of the two kinds of stair structures fully plays the advantages of the two kinds of stair structures, improves the overall performance and adaptability of the stair; the construction process of the combined stair is relatively simple, and does not need complex construction technology and equipment; and the use amount of concrete is reduced due to the plate stair of the lower ladder section, so that the material cost is saved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 It is a plan view of the stair structure in the preferred embodiment of the utility model;
[0017] Fig. 2 It is a front view of the stair structure in the preferred embodiment of the utility model;
[0018] Fig. 3 It is a side view of the stair structure in the preferred embodiment of the utility model.
[0019] ILLUSTRATIVE DESCRIPTION
[0020] 1, lower ladder section; 2, upper ladder section; 3, platform beam; 4, first ladder column; 5, second ladder column; 6, rest platform plate; 61, upper section side ladder beam; 7, floor; 71, floor beam; 8, upper section middle ladder beam; 9, bottom plate. DETAILED DESCRIPTION
[0021] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model will be described in detail as follows in combination with the drawings and preferred embodiments.
[0022] Please refer to Figs. 1-3 The embodiment aims to provide a plate and beam combined staircase structure for a subway station, which comprises a rest platform plate 6, one end of the rest platform plate 6 is fixedly provided with an upper ladder section 2 adopting a beam type staircase, both sides of the rest platform plate 6 are symmetrically fixedly provided with lower ladder sections 1 adopting a plate type staircase, and the bottom of the rest platform plate 6 is fixedly provided with a plurality of ladder columns, a plurality of ladder beams are fixedly arranged on the upper ladder section 2, and the ladder beams are anchored into the corresponding ladder columns.
[0023] The rest platform plate 6 is a transition area of the staircase, which ensures the safety and comfort of pedestrians when they go up and down the staircase. The rest platform plate 6 usually adopts a reinforced concrete structure, which has sufficient bearing capacity and durability. The surface of the rest platform plate 6 is usually paved with anti-skid materials to improve the safety of pedestrians. The overall layout of the staircase structure makes the staircase structure more balanced, which is conducive to the smooth passage of pedestrians.
[0024] The ladder columns comprise first ladder columns 4 fixedly arranged at the bottom of the rest platform plate 6 at the four corner edges, and a second ladder column 5 fixedly arranged at the bottom midpoint of one end of the rest platform plate 6, the second ladder column 5 is close to one side of the upper ladder section 2, and the second ladder column 5 is located at the center of the first ladder column 4 on the same side. Such a layout enhances the overall stability of the staircase structure.
[0025] A platform beam 3 is fixedly arranged around the rest platform plate 6, and the first ladder column 4 and the second ladder column 5 are fixedly arranged below the platform beam 3. The platform beam 3 not only enhances the bearing capacity of the rest platform plate 6, but also provides a stable support foundation for the ladder columns. The ladder columns usually adopt a reinforced concrete structure, which has sufficient bearing capacity and stability.
[0026] The ladder beams comprise upper section side ladder beams 61 fixedly arranged at both sides of the upper ladder section 2, and an upper section middle ladder beam 8 fixedly arranged between the upper section side ladder beams 61, and the upper section middle ladder beam 8 is located at the center of the upper ladder section 2. Such a design not only improves the bearing capacity of the upper ladder section 2, but also ensures the stability of the staircase.
[0027] The upper ladder section 2 is fixedly provided with a floor 7 at one end, and the floor 7 is fixedly provided with a floor beam 71 near one side of the upper ladder section 2. The floor beam 71 not only provides support for the floor 7, but also is connected with the ladder beam to jointly constitute an upper frame of the stair structure. The floor 7 is connected with other parts of the building structure through the floor beam 71. The lower ladder section 1 is fixedly provided with a bottom plate 9 at the bottom, and the bottom plate 9 is closely connected with the lower ladder section 1 through a reinforced concrete structure and provides a stable support foundation for the lower ladder section 1. Such a design ensures that the stair will not deform or lose stability when subjected to stress.
[0028] The upper section side ladder beam 61 is anchored at the lower end of the longitudinal stress reinforcement, and the upper section side ladder beam 61 is anchored at the upper end of the longitudinal stress reinforcement. Such a connection mode ensures the stability of the two sides of the upper ladder section 2 and effectively transmits the load to other parts of the building structure.
[0029] The upper section middle ladder beam 8 is anchored at the lower end of the longitudinal stress reinforcement, and the upper section middle ladder beam 8 is anchored at the upper end of the longitudinal stress reinforcement. Such a design not only enhances the stability of the center of the upper ladder section 2, but also makes the entire stair structure more balanced in stress. This connection mode is also beneficial to improve the seismic performance of the stair, ensuring that the stair can maintain the integrity and stability of the structure during natural disasters such as earthquakes.
[0030] In a subway station, a public place with high passenger flow, the design of the stair needs to fully consider the efficiency and comfort of the pedestrians, therefore, the width and span of the upper ladder section 2 are greater than those of the lower ladder section 1.
[0031] A subway station usually has a large number of passengers concentrated on and off the stairs in a short period of time, therefore, the wider width and span of the upper ladder section 2 can accommodate more pedestrians, reduce congestion, and improve the efficiency of passing through. The wider stair gives people a sense of openness and brightness in vision, which can improve the comfort and pleasure of passengers. At the same time, such a design also makes the stair more eye-catching in the overall space of the station, making it easy for passengers to quickly find and use. By reasonably adjusting the width and span of the stair, the space resources in the station can be more effectively utilized, avoiding space waste.
[0032] The beam type stair structure can bear larger load and has excellent stability and durability. In the subway station with large passenger flow and high safety requirement for the structure, the beam type stair can ensure the safe passage of passengers, and the structural design of the beam type stair is convenient for connecting and integrating with the surrounding building structure, thereby improving the stability and coordination of the overall structure. Compared with the beam type stair, the plate type stair has simpler and more beautiful structure and is convenient for construction. In the subway station, the lower stair section 1 usually adopts wider steps and platforms to improve the efficiency and comfort of passenger passage. The structural characteristics of the plate type stair can easily meet this design requirement while maintaining the neatness and beauty of the stair.
[0033] In the specific use, first, construction preparation is performed, including installing the bottom plate 9 at the bottom of the lower stair section 1 and constructing the floor 7 at one end of the upper stair section 2. Then, necessary supports and forms are erected between the completed bottom plate 9 and the floor 7, which provides an operation platform for the binding of the steel bars and ensures the accuracy and stability of the binding of the steel bars. Subsequently, the binding of the steel bars of the lower stair section 1 is started to lay the foundation for the structural strength of the lower stair section 1. Then, the binding of the stress steel bars of the rest platform plate 6 and the platform beam 3 is performed, and the longitudinal steel bars of the platform beam 3 are anchored into the first stair column 4. Then, the lower end of the longitudinal stress steel bars of the upper section side stair beam 61 is anchored into the first stair column 4, and the upper end is anchored into the floor beam 71. The lower end of the longitudinal stress steel bars of the upper section middle stair beam 8 is anchored into the second stair column 5, and the upper end is anchored into the floor beam 71. Subsequently, the binding of the stress steel bars in the upper stair section 2 is performed, and these stress steel bars need to be anchored into the upper section side stair beam 61 and the upper section middle stair beam 8 to form a complete upper stair section 2 structure. Finally, the pouring of the whole concrete of the stair is performed. After the concrete reaches the design strength, the formwork support is removed, and the construction of the stair structure is completed. At this time, the stair structure has sufficient bearing capacity and stability and can be safely used by passengers in the subway station.
[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as above with a preferred embodiment, it is not intended to limit the utility model. Any person skilled in the art can make slight changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes without departing from the technical solution of the utility model. Any modification, equivalent change and modification of the above embodiment based on the technical essence of the utility model still belongs to the scope of the technical solution of the utility model.
Claims
1. A slab-and-beam combined stair structure for a subway station, comprising a rest platform slab (6), characterized in that, The upper ladder section (2) of beam type is fixedly arranged on one end of the rest platform plate (6), the lower ladder section (1) of plate type is fixedly arranged on both sides of the rest platform plate (6) symmetrically, a plurality of ladder columns are fixedly arranged on the bottom of the rest platform plate (6), a plurality of ladder beams are fixedly arranged on the upper ladder section (2), and the ladder beams are anchored into the corresponding ladder columns.
2. The slab-and-slab combined stair structure for a subway station according to claim 1, characterized in that, The ladder column comprises a first ladder column (4) fixedly arranged at the bottom of the rest platform plate (6) at four corner edges, and a second ladder column (5) fixedly arranged at the bottom of the rest platform plate (6) at a midpoint of one end.
3. The slab-and-slab combined stair structure for a subway station according to claim 2, characterized in that, A platform beam (3) is fixedly arranged around the rest platform plate (6), and the first ladder column (4) and the second ladder column (5) are fixedly arranged below the platform beam (3).
4. The slab-and-slab combined stair structure for a subway station according to claim 1, wherein The ladder beam comprises an upper section side ladder beam (61) fixedly arranged on both sides of the upper ladder section (2), and an upper section middle ladder beam (8) fixedly arranged between the upper section side ladder beams (61).
5. The slab-and-slab combined stair structure for a subway station according to claim 4, characterized in that, A floor (7) is fixedly arranged on one end of the upper ladder section (2), a floor beam (71) is fixedly arranged on one side of the upper ladder section (2) close to the floor (7), and a bottom plate (9) is fixedly arranged on the bottom of the lower ladder section (1).
6. The slab-and-slab combined stair structure for a subway station according to claim 5, characterized in that, The lower end of the longitudinal stress reinforcement of the upper section side ladder beam (61) is anchored into the first ladder column (4), and the upper end of the longitudinal stress reinforcement of the upper section side ladder beam (61) is anchored into the floor beam (71).
7. The slab-and-slab combined stair structure for a subway station according to claim 5, characterized in that, The lower end of the longitudinal stress reinforcement of the upper section middle ladder beam (8) is anchored into the second ladder column (5), and the upper end of the longitudinal stress reinforcement of the upper section middle ladder beam (8) is anchored into the floor beam (71).
8. The slab-and-slab combined stair structure for a subway station according to claim 1, wherein The width and span of the upper ladder section (2) are greater than the width and span of the lower ladder section (1).