Track air duct structure provided with davit in subway station
By setting up the upper floor slab and side walls of the track air duct between the side walls of the subway station, setting up hanging columns and air ducts, combining the shear wall and concealed column design, the ventilation efficiency and stability problems when the subway station structure is wide is solved, and the problem of ventilation efficiency and stability is achieved. Efficient ventilation and resource conservation effects.
Patent Information
- Application Number
- CN202420435851.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-07
AI Technical Summary
The prior art is difficult to effectively solve the problems of ventilation efficiency and structural stability of rail front air ducts when the subway station structure is wide, especially in the case of shield construction, there is a risk of material waste and structural damage in cast-in-place construction.
Set up the upper floor slab and side walls of the track air duct between the side walls of the station, set up several hanging columns, and set up openings and air ducts on the bottom plate of the air duct. Use shear walls and hidden columns to form a stable ventilation structure. The hanging column includes a longitudinal Rods and stirrups are used to enhance shock resistance and reduce partition wall settings for improved ventilation efficiency.
It improves the ventilation efficiency and structural stability of the subway station, meets the needs of large-span ventilation, saves steel bars and concrete materials, simplifies the construction process, and enhances the seismic performance of the structure.
Smart Images
Figure CN222141300U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rail transportation ventilation, in particular to a rail air duct structure with hanging columns in a subway station. Background Art
[0002] The rail-top air duct of a subway station, also known as the train-top exhaust duct, is a core component of the subway station ventilation system. It is hung at the intersection of the middle plate and the side wall of the station. Due to its special location, it is usually not cast together with the main body of the station. Especially when the station requires shield construction, the rail-top air duct can only be cast in the later stage. In China, the rail-top air duct is mainly constructed by cast-in-place method.
[0003] The structure of the track top air duct is usually a U-shaped plate reinforced concrete structure, which is hung upside down under the structural side walls and floor slabs of the station. However, if the structure of the air duct is wider, such as setting up reinforced concrete partition walls inside the air duct, the exhaust speed and function may be affected.
[0004] Patent publication number CN220469993U discloses a column-type rail-top air duct structure suitable for subway stations, which avoids a large amount of rebar planting work, saves construction time and cost, and reduces damage to existing structures. However, the patent does not provide an effective solution for station structures with wider structures. Utility Model Content
[0005] The utility model aims to overcome the shortcomings of the prior art and provide a track air duct structure with hanging columns which can adapt to subway stations with wider air duct structures.
[0006] The purpose of this utility model is achieved through the following technical solutions:
[0007] A track air duct structure with hanging columns in a subway station, wherein an upper floor slab of the track air duct is arranged between the side walls of the station body, and side walls of the track air duct are arranged at the bottom of both sides of the upper floor slab; a plurality of hanging columns are arranged between the side walls of the track air duct; and the upper ends of the hanging columns are connected to the upper floor slab;
[0008] An air duct bottom plate is arranged between the side walls of the track air duct, an opening is arranged on the air duct bottom plate, and an air duct is arranged above the opening; a shear wall is arranged on the air duct bottom plate, and the shear wall and the side wall of the track air duct form a track air duct; a hidden column is arranged at the edge of the shear wall at the opening; a structural beam is arranged at the bottom of the hidden column;
[0009] The hanging column includes a first hanging column and a second hanging column. The first hanging column is located between the hidden column on the opening side and the second hanging column. The bottom of the first hanging column is the bottom plate of the air duct. A longitudinal hidden beam is arranged under the second hanging column. A transverse hidden beam is arranged between the structural beam at the bottom of the hidden column on the opening side and the longitudinal hidden beam under the second hanging column.
[0010] Preferably, the structural beam at the bottom of the hidden column on the side of the opening is set as a longitudinal hidden beam.
[0011] Preferably, concealed columns are provided at the edges of the shear walls on the bottom plate of the air duct.
[0012] Preferably, the suspension column comprises longitudinal reinforcement and stirrups, and the stirrups are arranged transversely and tied together with the longitudinal reinforcement.
[0013] Preferably, the longitudinal reinforcement is U-shaped, the upper part of the longitudinal reinforcement is anchored into the upper floor slab, and the lower part of the longitudinal reinforcement is anchored into the hidden beam under the bottom plate of the air duct.
[0014] Preferably, the longitudinal bars of the suspension column are arranged in several rows, each row includes two longitudinal bars, and the two longitudinal bars in the same row are arranged opposite to each other.
[0015] Preferably, the branches of two longitudinal bars in the same row face outwards.
[0016] Preferably, the stirrups are arranged as a dense structure, and at least three layers of stirrups are arranged in the same suspension column, and each layer of stirrups includes a ring structure composed of a number of stirrups connected at the ends.
[0017] Preferably, the stirrups of the suspension column are fully covered with concrete.
[0018] Preferably, the cross section of the suspension column is rectangular.
[0019] The utility model has at least the following beneficial effects: the utility model adopts the side wall of the subway station as a support, and sets the upper floor of the track air duct between the side walls of the station body as the air duct carrier, thereby enhancing the stability of the structure. An opening is set on the bottom plate of the air duct, and an air duct is set above the opening. This design greatly improves the ventilation efficiency and can better meet the ventilation needs of the subway station. The hanging column includes a first hanging column and a second hanging column. The first hanging column is located between the hidden column on the side of the opening and the second hanging column. A longitudinal hidden beam is set under the second hanging column. A transverse hidden beam is set between the structural beam at the bottom of the hidden column on the side of the opening and the longitudinal hidden beam under the second hanging column. The structure is stable, which can improve the seismic performance of the structure and better protect the safety of the subway station. The structure of the utility model can meet the ventilation requirements of large-span subway stations, has a reasonable structure, and is easy to construct. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show 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.
[0021] Figure 1 It is a cross-sectional schematic diagram of the utility model;
[0022] Figure 2 It is a schematic diagram of the plane layout of the utility model;
[0023] Figure 3 This is a schematic diagram of the structure of the reinforcement of the suspension column of the utility model;
[0024] In the figure, 1-side wall of the station body, 2-side wall of the track air duct, 3-bottom plate of the air duct, 4-hidden column, 5-hanging column, 6-first longitudinal hidden beam, 7-transverse hidden beam, 8-second longitudinal hidden beam, 9-upper floor, 10-air duct, 11-longitudinal reinforcement, 12-stirrup reinforcement. DETAILED DESCRIPTION
[0025] The technical solution of the present utility model is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present utility model is not limited to the following.
[0026] Hereinafter, different embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that the present disclosure is not limited to the specific form disclosed herein, but rather, the present disclosure should be interpreted as covering different changes, equivalents and / or replacements of the embodiments of the present disclosure. When describing the accompanying drawings, similar reference numerals may be used to indicate similar components.
[0027] In the present disclosure, if there is a statement "A or B", "at least one of A and / or B", or "one or more of A and / or B", it can include all possible combinations of the listed items. For example, the statement "A or B", "at least one of A and B", or "at least one of A or B" refers to all of the following situations: (1) including at least one A, (2) including at least one B, or (3) including both at least one A and at least one B.
[0028] The expressions used in different embodiments of the present disclosure, if there is "first", "second", "the first" or "the second" can modify different elements, regardless of order and / or importance, without limiting the corresponding elements. For example, a first user device and a second user device refer to different user devices, although both of them are user devices. For example, a first element can be referred to as a second element, and similarly, a second element can be referred to as a first element without departing from the scope of the present disclosure.
[0029] It will be understood that when an element (e.g., a first element) is referred to as being (operably or communicatively) "connected to" or "coupled to" another element (e.g., a second element), the element may be directly connected or coupled to the other element, or any other element (e.g., a third element) may be interposed therebetween. Conversely, when an element (e.g., a first element) is referred to as being "directly connected" or "directly coupled to" another element (the second element), no element (e.g., a third element) is interposed therebetween.
[0030] In the present disclosure, the terms are used to describe specific embodiments and do not limit the present disclosure. As used herein, the singular form is intended to also include the plural form, unless the content clearly indicates otherwise. In the specification, it should be understood that the term "including" or "having" represents the presence of a feature, number, step, operation, structural element, component or combination thereof, without excluding in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, structural elements, components or combinations thereof.
[0031] It should be understood that certain details are provided in the following description to facilitate a complete understanding of the example embodiments. However, one of ordinary skill in the art should understand that the example embodiments can be implemented without these specific details. For example, the system can be shown in a block diagram to avoid obscuring the example with unnecessary details. In other examples, well-known processes, structures, and techniques may not be shown in unnecessary details to avoid obscuring the example.
[0032] Example
[0033] A track air duct structure with hanging columns 5 in a subway station, wherein an upper floor slab 9 of the track air duct is arranged between the side walls 1 of the station body, and track air duct side walls 2 are arranged at the bottom of both sides of the upper floor slab 9; a plurality of hanging columns 5 are arranged between the track air duct side walls 2; and the upper ends of the hanging columns 5 are connected to the upper floor slab 9;
[0034] An air duct base plate 3 is arranged between the track air duct side walls 2, an opening (i.e., air duct opening) is arranged on the air duct base plate 3, and an air duct 10 is arranged above the opening; a shear wall is arranged on the air duct base plate 3, and the shear wall and the track air duct side walls 2 form a track air duct; a hidden column 4 is arranged at the edge of the shear wall at the opening to strengthen the opening and the structure; a structural beam is arranged at the bottom of the hidden column 4, and the hidden column 4 forms a rigid connection with the structural beam.
[0035] The hanging column 5 includes a first hanging column 5 and a second hanging column 5. The first hanging column 5 is located between the hidden column 4 on the side of the opening and the second hanging column 5. The bottom of the first hanging column 5 is the air duct bottom plate 3. A longitudinal hidden beam (i.e. Figure 1 A first longitudinal hidden beam 6), a transverse hidden beam 7 is arranged between the structural beam at the bottom of the hidden column 4 on the opening side and the longitudinal hidden beam below the second hanging column 5.
[0036] The utility model cleverly integrates the air duct bottom plate 3, side walls, hanging columns 5 and hidden columns 4 to jointly construct a stable and fully functional ventilation space. At the center of the structure, we carefully set the hanging columns 5, which are closely connected to the station structure floor slab and stably support the entire air duct structure. The connection between the lower end of the hanging column 5 and the hidden beam / bottom plate further enhances the stability of the structure. It is worth mentioning that the hanging column 5 is regarded as a core component that bears tension, which not only avoids the setting of a partition wall in the middle of the air duct and maintains the smooth use of the air duct, but also saves a large amount of steel bars and concrete materials, achieving a perfect combination of resource conservation and functionality. The beneficial effect of the utility model is that it solves the problem of large-span track air ducts (generally a span of more than 35 meters), maintaining its functionality and achieving resource conservation.
[0037] In a preferred embodiment, the structural beam at the bottom of the opening side hidden column 4 is set as a longitudinal hidden beam (i.e. Figure 1 The second longitudinal dark beam 8). Figure 1 As shown, a downward-flipped beam can be arranged under the hidden column 4 opposite to the hidden column 4 on the side of the opening.
[0038] In a preferred embodiment, the edges of the shear walls on the air duct bottom plate 3 are all provided with concealed columns 4, and the lower part of the concealed columns 4 is generally a concealed beam or a downward-turned beam. The concealed beam can enhance the local stability, has a beautiful design, and can also increase the height of the lower space. The downward-turned beam has a better effect on enhancing stability, and each has its own advantages and disadvantages.
[0039] In a preferred embodiment, the suspender 5 includes longitudinal reinforcement 11 and stirrups 12 . The stirrups 12 are arranged transversely and tied together with the longitudinal reinforcement 11 .
[0040] In a preferred embodiment, the longitudinal reinforcement 11 is U-shaped, the upper part of the longitudinal reinforcement 11 is anchored into the upper floor 9, and the lower part of the longitudinal reinforcement 11 is anchored into the hidden beam under the air duct bottom plate 3. Preferably, the longitudinal reinforcement 11 is connected to the horizontal hidden beam 7, and is preferably fixed to the steel bars in the horizontal hidden beam 7. The anchorage length of the longitudinal reinforcement 11 anchored into the upper floor 9 and the hidden beam is greater than 35d, where d is the diameter of the steel bar.
[0041] In a preferred embodiment, the longitudinal bars 11 of the suspension column 5 are arranged in several rows, each row includes two longitudinal bars 11, and the two longitudinal bars 11 in the same row are arranged opposite to each other.
[0042] In a preferred embodiment, the branches of the two longitudinal bars 11 in the same row are outwardly arranged in a reasonable manner, and the structure is more solid.
[0043] In a preferred embodiment, the stirrups 12 are arranged as a dense structure, and at least three layers of stirrups 12 are arranged in the same suspension column 5, and each layer of stirrups 12 includes a ring structure composed of a plurality of stirrups 12 connected at the end.
[0044] In a preferred embodiment, the stirrups 12 of the hanging column 5 are fully covered by concrete to prevent damage or corrosion of the stirrups 12. The cross section of the hanging column 5 is rectangular, which is convenient for on-site construction.
[0045] The utility model provides a construction method for a track air duct structure of a subway station with hanging columns 5:
[0046] a. Construction of the main station side wall 1 and the upper floor slab 9 of the track air duct;
[0047] b. Tie up the steel bars of the side wall 2 of the track air duct and tie up the steel bars of the bottom plate 3 of the air duct;
[0048] c. Set a hidden column 4 at the opening position of the air duct, and set a hidden beam between the bottoms of the hidden columns 4;
[0049] d. A hanging column 5 is set in the middle of the air duct, and a hidden beam is set on the corresponding position of the air duct bottom plate 3. The hanging column 5 is provided with dense stirrups 12, and the hanging column 5 is provided with longitudinal reinforcement 11. The upper part of the longitudinal reinforcement 11 is anchored into the floor slab, and the lower part of the longitudinal reinforcement 11 is anchored into the air duct bottom plate 3;
[0050] e. Cast concrete as a whole;
[0051] f. After the concrete reaches the designed strength, install the metal air duct 10.
[0052] Although the preferred embodiments of the utility model have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the utility model. The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.
Claims
1. A track air duct structure with hanging columns in a subway station, characterized in that: An upper floor slab of the track air duct is arranged between the side walls of the station body, and side walls of the track air duct are arranged at the bottom of both sides of the upper floor slab; a plurality of hanging columns are arranged between the side walls of the track air duct; and the upper ends of the hanging columns are connected to the upper floor slab; An air duct bottom plate is arranged between the side walls of the track air duct, an opening is arranged on the air duct bottom plate, and an air duct is arranged above the opening; a shear wall is arranged on the air duct bottom plate, and the shear wall and the side wall of the track air duct form a track air duct; a hidden column is arranged at the edge of the shear wall at the opening of the air duct bottom plate; a structural beam is arranged at the bottom of the hidden column; The hanging column includes a first hanging column and a second hanging column. The first hanging column is located between the hidden column on the opening side and the second hanging column. The bottom of the first hanging column is the bottom plate of the air duct. A longitudinal hidden beam is arranged under the second hanging column. A transverse hidden beam is arranged between the structural beam at the bottom of the hidden column on the opening side and the longitudinal hidden beam under the second hanging column.
2. A track air duct structure with hanging columns in a subway station according to claim 1, characterized in that: The structural beam at the bottom of the concealed column on the side of the opening is set as a longitudinal concealed beam.
3. The track air duct structure with hanging columns in a subway station according to claim 1, characterized in that: Concealed columns are set at the edges of the shear walls on the bottom plate of the air duct.
4. The track air duct structure with hanging columns in a subway station according to claim 1, characterized in that: The suspender includes longitudinal reinforcement and stirrups, and the stirrups are arranged transversely and tied together with the longitudinal reinforcement.
5. The track air duct structure with hanging columns in a subway station according to claim 4, characterized in that: The longitudinal reinforcement is U-shaped, with the upper part of the longitudinal reinforcement anchored in the upper floor slab and the lower part of the longitudinal reinforcement anchored in the hidden beam under the bottom plate of the air duct.
6. A track air duct structure with hanging columns in a subway station according to claim 5, characterized in that: The longitudinal reinforcement of the suspension column is arranged in several rows, each row includes two longitudinal reinforcements, and the two longitudinal reinforcements in the same row are arranged opposite to each other.
7. A track air duct structure with hanging columns in a subway station according to claim 6, characterized in that: The branches of the two longitudinal bars in the same row face outwards.
8. The track air duct structure with hanging columns in a subway station according to claim 7, characterized in that: The stirrups are arranged as a dense structure, and at least three layers of stirrups are arranged in the same suspension column. Each layer of stirrups includes a ring structure composed of several stirrups connected at the end.
9. A track air duct structure with hanging columns in a subway station according to claim 8, characterized in that: The stirrups of the suspension column are fully covered with concrete.
10. A track air duct structure with hanging columns in a subway station according to any one of claims 1 to 9, characterized in that: The cross section of the davit is rectangular.