Permanent structural member suitable for subway station

Abstract

The utility model relates to a permanent structural member suitable for a subway station, and belongs to the field of buildings, the permanent structural member comprises a prefabricated square pile, a protection assembly is arranged on the outer side of the prefabricated square pile, and connecting assemblies are arranged on the upper side and the lower side of the prefabricated square pile. According to the permanent structural member suitable for the subway station, the protection assemblies are arranged, the structural bars are vertically fixed to the outer sides of the prefabricated square piles, the lateral bearing capacity of the square piles is improved, the square piles can better resist lateral pressure and soil pressure, the distribution bars and the structural bars form a reinforcing mesh, concrete cracks are effectively prevented from expanding, and the service life of the square piles is prolonged. The concrete layer is filled between the constructional bars and the prefabricated square piles, the concrete layer and the square piles form a whole, the overall stability and deformation resistance of the structure are enhanced, the stirrups are fixed to the front sides and the rear sides of the distribution bars to form a concentric-square-shaped structure, the constraining force of a reinforcing mesh is increased, and the shear resistance of the structure is improved; and under the condition that the thickness of the protective layer is the same, the main load-bearing steel bars have higher durability.

Description

Technical Field

[0001] The present application relates to the field of building technology, and in particular to a permanent structural component suitable for a subway station. Background Art

[0002] Underground rail stations, commonly known as subway stations or subway stations, are public transportation facilities located underground and used in urban rail transit systems. These stations provide services for passengers to get on and off subway trains and are an important part of the city's subway network.

[0003] As disclosed in Chinese Patent Publication No. (CN220469993U), a suspended column type rail-top air duct structure suitable for subway stations relates to the field of rail transit ventilation technology. The suspended column type rail-top air duct structure consists of a main structure plate, hanging columns, air duct walls, air duct plates, beams, and anchoring steel bars; the hanging columns and beams constitute a beam-column system, and the hanging columns are fixedly connected to the main structure plate; the air duct wall is implanted in the main structure plate through anchoring steel bars; the beams are connected to the hanging columns, air duct walls, and air duct plates as a whole; a ventilation space is formed between the main structure plate, the hanging columns on both sides, the air duct walls, the air duct plates, and the beams. The utility model adopts a hanging column structure to replace the conventional wall panel structure of the rail-top air duct, which meets the connection and force requirements of the rail-top air duct and the main structure, avoids a large number of embedded steel bars and damage to the existing structure, greatly saves the project cost, and is of great significance for ensuring construction safety, quality and efficiency.

[0004] However, in the prior art such as the above-mentioned patent, there is still a problem that underground rail stations and auxiliary air duct structures are usually constructed in stages, and the side walls and foundation pit retaining piles of the air duct structure are separately arranged with the subway station, and only some retaining piles are removed in the connecting section to realize the use function of the air duct structure. Utility Model Content

[0005] In response to the shortcomings of the prior art, the present application provides a permanent structural component suitable for subway stations, which has advantages such as composite support. It solves the problem that underground rail stations and affiliated air duct structures are usually constructed in stages, and the side walls and foundation pit retaining piles of the air duct structure are separately set up from the subway station, and only some retaining piles are removed in the connecting section to realize the use function of the air duct structure.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: A permanent structural member suitable for a subway station, comprising a prefabricated square pile, a protective component is provided on the outer side of the prefabricated square pile, and a connecting component is provided on the upper and lower sides of the prefabricated square pile;

[0007] The protection component includes a number of structural bars, a number of distribution bars and a concrete layer. A number of the structural bars are respectively vertically fixed on the outer side of the precast square pile. A number of the distribution bars are all horizontally fixed on the outer side of a number of the structural bars. The concrete layer is filled between one side of the structural bar and the precast square pile. Stirrups are fixed on both the front and back sides of the structural bar and between the opposite sides of two adjacent distribution bars.

[0008] By adopting this technical solution, a component with stable structure and good bearing capacity is provided, which is applicable to the permanent structure of subway stations.

[0009] Furthermore, a number of the structural bars are evenly distributed on the outer side of the precast square pile, and the length of the structural bar is equal to the height of the precast square pile.

[0010] By adopting this technical solution, the bearing capacity of the square pile in all directions is ensured to be balanced, and the symmetry and stability of the structure are improved.

[0011] Furthermore, the shape of the stirrup is in the shape of a square frame, and the distance between the inner walls on both the front and back sides of the stirrup is equal to the diameter of the structural bar.

[0012] By adopting this technical solution, more uniform binding force is provided, and the shear resistance and torsional resistance of the structure are enhanced.

[0013] Furthermore, the diameter of the structural bar is larger than the diameters of the distribution bar and the stirrup.

[0014] By adopting this technical solution, it is ensured that the main stressed bars have higher bearing capacity, and at the same time, the thickness of the steel bar protection layer is optimized, and the durability is improved.

[0015] Furthermore, the connection component includes two steel bar connection sockets, two steel bar insertion frames and two capping beams. Installation grooves are respectively opened on the upper and lower sides of the precast square pile. Two of the steel bar connection sockets are respectively fixed to the inner walls of the two installation grooves. Two of the steel bar insertion frames are respectively inserted into the interiors of the two steel bar connection sockets. Two of the capping beams are respectively fixed to the opposite sides of the two steel bar insertion frames.

[0016] By adopting this technical solution, the effective connection between the precast square pile and other structures is realized, and the stability and bearing capacity of the overall structure are enhanced.

[0017] Furthermore, grouting ports are respectively opened on the inner walls of the two installation grooves.

[0018] By adopting this technical solution, it is convenient for the filling of the concrete slurry, and the fixing strength and integrity between the connection component and the precast square pile are improved.

[0019] Furthermore, the inner walls of the two installation grooves are filled with concrete slurry through the grouting ports.

[0020] By adopting this technical solution, the bonding force between the inner wall of the installation groove and the connecting component is enhanced, and the stability and durability of the structure are improved.

[0021] Furthermore, the capping beam includes a concrete beam and a plurality of steel bars placed inside the concrete beam.

[0022] By adopting this technical solution, a composite bearing capacity is provided, and the combination of the concrete beam and the steel bar also improves the bending and shearing properties of the capping beam.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] 1. This permanent structural member suitable for subway stations is provided with a protection component. The structural reinforcement is vertically fixed on the outside of the prefabricated square pile, which improves the lateral bearing capacity of the square pile and enables it to better resist lateral pressure and soil pressure. The distribution reinforcement and the structural reinforcement form a steel mesh, which effectively prevents the expansion of concrete cracks and improves the crack resistance and ductility of the structure. The concrete layer is filled between the structural reinforcement and the prefabricated square pile to form a whole with the square pile, thereby enhancing the overall stability and deformation resistance of the structure. The stirrups are fixed on the front and rear sides of the distribution reinforcement to form a U-shaped structure, which increases the restraining force of the steel mesh, improves the shear resistance of the structure, and ensures that under the same protective layer thickness, the main force-bearing steel bars have higher durability.

[0025] 2. The permanent structural member suitable for subway stations is provided with a connection component. The steel bar connection base is fixed to the inner wall of the installation groove, which provides a stable fixing point for the connection component to ensure the reliability of the connection. The steel bar frame is inserted into the steel bar connection base to support the top beam, which improves the bearing capacity of the connection component. The top beam is fixed to the steel bar frame to connect the upper and lower structures of the prefabricated square piles, which improves the stability of the overall structure. The top beam, as a part of the connection component, participates in the anti-floating of the main structure and effectively resists the groundwater pressure. The design of the installation groove and the grouting port simplifies the construction process, and the connection component is fixed by grouting to improve the construction efficiency. The concrete beam and steel bars inside the top beam improve its durability and stability, ensuring the reliability of long-term bearing. The design of the connection component allows the prefabricated square piles to adapt to different geological conditions and load requirements, and improves the adaptability and flexibility of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of this application;

[0027] Figure 2 A schematic diagram of the components to be protected for this application;

[0028] Figure 3 A partial schematic diagram of the component to be protected in this application;

[0029] Figure 4 Schematic diagram of connecting components for this application.

[0030] In the figure: 1. Prefabricated square piles; 2. Protection components; 21. Structural reinforcement; 22. Distribution reinforcement; 23. Concrete layer; 24. Stirrups; 3. Connection components; 31. Steel bar connection base; 32. Steel bar rack; 33. Top beam; 34. Installation groove; 35. Grouting port. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] See also Figure 1 A permanent structural member suitable for a subway station in this embodiment includes a prefabricated square pile 1, a protective component 2 is provided on the outer side of the prefabricated square pile 1, and connecting components 3 are provided on the upper and lower sides of the prefabricated square pile 1. The prefabricated square pile 1 is reinforced by the protective component 2 on the outer side and the connecting components 3 on the upper and lower sides to improve its bearing capacity and stability in underground engineering.

[0033] See also Figures 2 to 3 In order to improve the protection effect of the components, the protection component 2 in this embodiment includes a plurality of structural bars 21, a plurality of distribution bars 22 and a concrete layer 23. The protection component 2 is composed of the structural bars 21, the distribution bars 22, the stirrups 24 and the concrete layer 23 to form a reinforced concrete protection layer, which is intended to protect the prefabricated square piles from environmental erosion and provide additional crack resistance and ductility. The plurality of structural bars 21 are respectively fixed vertically on the outside of the prefabricated square piles 1, and the plurality of distribution bars 22 are horizontally fixed on the outside of the plurality of structural bars 21. The concrete layer 23 is filled between the opposite side of the structural bars 21 and the prefabricated square pile 1, and stirrups 24 are fixed between the opposite sides of two adjacent distribution bars 22 and on the front and rear sides of the structural bars 21.

[0034] In this embodiment, a plurality of structural bars 21 are evenly distributed on the outside of the prefabricated square pile 1, the length of the structural bar 21 is equal to the height of the prefabricated square pile 1, the shape of the stirrup 24 is a Chinese umbilical cord, and the distance between the inner walls of the front and rear sides of the stirrup 24 is equal to the diameter of the structural bar 21, and the structural bars 21 are evenly distributed on the outside of the prefabricated square pile 1, ensuring the symmetry and uniform load-bearing of the structure, the length of the structural bar 21 is equal to the height of the prefabricated square pile 1, and the size of the stirrup 24 matches the diameter of the structural bar 21, which helps to achieve the optimization of the structural design, the diameter of the structural bar 21 is larger than the diameter of the distribution bar 22 and the stirrup 24, and the diameter of the structural bar 21 is larger than the diameter of the distribution bar 22 and the stirrup 24. This design allows the main force-bearing bars to bear a larger load, while other steel bars play a role in assisting and distributing the load.

[0035] See also Figure 4 In order to connect the anti-floating support of the subway station, the connection component 3 in this embodiment includes two steel bar connection mother seats 31, two steel bar insertion frames 32 and two pressure top beams 33. The upper and lower sides of the prefabricated square pile 1 are provided with installation grooves 34. The two steel bar connection mother seats 31 are respectively fixed to the inner walls of the two installation grooves 34, and the two steel bar insertion frames 32 are respectively inserted into the inside of the two steel bar connection mother seats 31. The two pressure top beams 33 are respectively fixed to the opposite sides of the two steel bar insertion frames 32. The connection component 3 realizes the connection of the prefabricated square pile 1 with other structures through the steel bar connection mother seats 31, the steel bar insertion frames 32 and the pressure top beams 33, providing a stable node and enhancing the stability and bearing capacity of the overall structure.

[0036] In this embodiment, the inner walls of the two installation grooves 34 are provided with grouting holes 35, and the inner walls of the two installation grooves 34 are filled with concrete slurry through the grouting holes 35. The concrete slurry is filled into the installation grooves 34 through the grouting holes 35 in the installation grooves 34 to fix the connection components 3, thereby improving the adhesion and integrity between the components. The top beam 33 includes a concrete beam and a plurality of steel bars placed inside the concrete beam. The top beam 33 is composed of a concrete beam and internal steel bars. This design improves the bearing capacity and bending resistance of the beam, and also provides better shear resistance for the structure. It adopts a composite method and participates in the anti-floating of the main structure through the top beam 33, and is a permanent component.

[0037] The working principle of the above embodiment is:

[0038] The prefabricated square pile 1 is reinforced by the outer protection component 2 and the upper and lower connection components 3 to improve its bearing capacity and stability in underground engineering. The protection component 2 is composed of structural reinforcement 21, distribution reinforcement 22, stirrups 24 and concrete layer 23, forming a reinforced concrete protection layer, which is intended to protect the prefabricated square pile from environmental erosion while providing additional crack resistance and ductility. The structural reinforcement 21 is evenly distributed on the outside of the prefabricated square pile 1 to ensure the symmetry and uniform load of the structure. The length of the structural reinforcement 21 is equal to the height of the prefabricated square pile 1, and the size of the stirrup 24 matches the diameter of the structural reinforcement 21, which helps to achieve the optimization of the structural design. The diameter of the structural reinforcement 21 is larger than the diameter of the distribution reinforcement 22 and the stirrup 24. This design The main force-bearing bars are made to bear a greater load, while other steel bars play an auxiliary and load-distributing role. The connection component 3 realizes the connection between the prefabricated square pile 1 and other structures through the steel bar connection mother seat 31, the steel bar insertion frame 32 and the pressure beam 33, provides a stable node, and enhances the stability and bearing capacity of the overall structure. The concrete slurry is filled into the installation groove 34 through the grouting port 35 in the installation groove 34 to fix the connection component 3, thereby improving the bonding force and integrity between the components. The pressure beam 33 is composed of a concrete beam and internal steel bars. This design improves the bearing capacity and bending resistance of the beam, and also provides better shear resistance for the structure. It adopts a composite method and participates in the anti-floating of the main structure through the pressure beam 33, and is a permanent component.

Claims

1. A permanent structural member suitable for a subway station, comprising a prefabricated square pile (1), characterized in that: A protection component (2) is provided on the outer side of the precast square pile (1), and connection components (3) are provided on the upper and lower sides of the precast square pile (1); The protection component (2) includes a number of construction steel bars (21), a number of distribution steel bars (22) and a concrete layer (23). The number of construction steel bars (21) are respectively vertically fixed on the outer side of the precast square pile (1), the number of distribution steel bars (22) are all horizontally fixed on the outer side of the number of construction steel bars (21), and the concrete layer (23) is filled between the side of the construction steel bar (21) opposite to the precast square pile (1). Stirrups (24) are fixed on both the front and back sides of the construction steel bar (21) between the opposite sides of two adjacent distribution steel bars (22).

2. A permanent structural member suitable for a subway station according to claim 1, characterized in that: The number of construction steel bars (21) are evenly distributed on the outer side of the precast square pile (1), and the length of the construction steel bar (21) is equal to the height of the precast square pile (1).

3. A permanent structural member suitable for a subway station according to claim 1, characterized in that: The stirrup (24) is in the shape of a square frame, and the distance between the inner walls on the front and back sides of the stirrup (24) is equal to the diameter of the construction steel bar (21).

4. A permanent structural member suitable for a subway station according to claim 1, characterized in that: The diameter of the construction steel bar (21) is greater than the diameters of the distribution steel bar (22) and the stirrup (24).

5. The permanent structural member suitable for a subway station according to claim 1, characterized in that: The connection component (3) includes two steel bar connection sockets (31), two steel bar insertion frames (32) and two capping beams (33). Installation grooves (34) are opened on both the upper and lower sides of the precast square pile (1). The two steel bar connection sockets (31) are respectively fixed to the inner walls of the two installation grooves (34). The two steel bar insertion frames (32) are respectively inserted into the two steel bar connection sockets (31), and the two capping beams (33) are respectively fixed to the opposite sides of the two steel bar insertion frames (32).

6. A permanent structural member suitable for a subway station according to claim 5, characterized in that: Grouting ports (35) are opened on the inner walls of the two installation grooves (34).

7. A permanent structural member suitable for a subway station according to claim 5, characterized in that: The inner walls of the two installation grooves (34) are filled with concrete slurry through the grouting ports (35).

8. The permanent structural member suitable for a subway station according to claim 5, characterized in that: The capping beam (33) includes a concrete beam and a number of steel bars placed inside the concrete beam.

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