CN206815525U - A kind of orbit traffic overhead station - Google Patents

Abstract

The utility model discloses a rail transit elevated station, comprising: multiple single-column steel-concrete composite frame structures; each single-column steel-concrete composite frame includes: piers, first steel-concrete composite beams, second ‑concrete composite beam, platform structure, track beam and roof canopy; the first steel‑concrete composite beam is installed on top of the pier column via the first composite beam-column node; the second steel‑concrete composite beam is installed on top of the pier column via the second composite beam-column Installed on the top of the center column and side column of the station hall layer; the roof canopy is installed on the top of the supporting columns at both ends of the second steel-concrete composite beam; both the first steel-concrete composite beam and the second steel-concrete composite beam are A square steel pipe composite beam with an accommodation chamber, the bottom of the accommodation chamber and the connection with the first composite beam-column node or the second composite beam-column node are poured with concrete. The use of this rail transit elevated station can reduce the self-weight of structural components, improve structural ductility and seismic performance, and shorten the construction period.

Description

A rail transit elevated station

technical field

The utility model relates to rail transit technology, in particular to an elevated rail transit station.

Background technique

At present, the elevated stations (side platforms and island platform stations) of domestic rail transit projects adopt a relatively high proportion of single-column structures, and all of them adopt cast-in-place reinforced concrete structures. The advantage of this structure is that the maintenance workload during operation is relatively small, and the engineering cost is relatively low.

However, the above-mentioned rail transit elevated station using traditional concrete single column structure in the prior art also has the following disadvantages:

1. The traditional concrete single-column structure is self-heavy, the component size is large, the structural volume is large, and the overall lateral force resistance system of the structure has only one single column, which will bear a large axial force and bending moment under the earthquake. During a large earthquake, the plastic hinge formed by a single reinforced concrete column has poor ductility, which cannot consume the energy of the structure during vibration, and is prone to irreparable damage. Therefore, the seismic performance of the structure under earthquake action is poor.

2. The traditional concrete single-column structure adopts the method of on-site pouring, and the construction is complicated. Generally, the following procedures are required: erecting a full hall of scaffolding to pour beam-slab components; supporting formwork to pour beam-column components; binding steel bars, etc. All the above processes need to be completed on site, resulting in disadvantages such as long construction period, long road occupation period, and difficulty in concrete pouring.

3. Due to the large size of the components of the traditional concrete single-column structure, it has a negative impact on the urban landscape. At the same time, the concrete structure will have a great impact and pollution on the surrounding environment during the construction process. .

4. The traditional concrete single-column structure has a large self-weight load, a large amount of reinforcement for beam-column components, a small clear distance between steel bars, and a large amount of engineering work for binding steel bars, which makes concrete pouring difficult and difficult to control the construction quality.

Therefore, it is necessary to improve the rail transit elevated station structure system in the prior art.

Utility model content

In view of this, the utility model provides a rail transit elevated station, which can greatly reduce the weight of structural components, improve structural ductility and seismic performance, reduce construction period, improve construction quality, reduce road occupation time, and reduce environmental impact.

The technical scheme of the utility model is specifically realized in the following way:

A rail transit elevated station, comprising: multiple single-column steel-concrete composite frame structures;

Among them, each single-column steel-concrete composite frame structure includes: pier column, first steel-concrete composite beam, second steel-concrete composite beam, platform structure, track beam and roof canopy;

The top of the pier column is equipped with a first composite beam-column node;

The first steel-concrete composite beam is installed on the top of the pier column through the first composite beam-column node;

A center column is installed on the top of the first composite beam-column node; side columns are installed at both ends of the first steel-concrete composite beam; a second composite beam-column node is installed on the top of the center column;

The second steel-concrete composite beam is mounted on top of the center column and side columns through the second composite beam-column joint;

The platform structure and the track are arranged on the second steel-concrete composite beam; supporting columns are installed at both ends of the second steel-concrete composite beam;

The roof canopy is installed on the top of the support column;

Both the first steel-concrete composite beam and the second steel-concrete composite beam are square steel pipe composite beams; the middle part of the square steel pipe composite beam is provided with an accommodating chamber, and the bottom of the accommodating chamber and the accommodating chamber and the second Concrete is poured at the joint of a composite beam-column joint or a second composite beam-column joint;

Both ends of the first steel-concrete composite beam, the second steel-concrete composite beam and the platform structure are provided with corresponding longitudinal connecting steel beams;

Two adjacent single-column steel-concrete composite frames are connected by corresponding longitudinal connecting steel beams.

Preferably, the piers are square steel pipe concrete columns.

Preferably, the central column and the side column are all steel pipe concrete columns.

Preferably, a prefabricated reinforced concrete slab is laid on the upper surfaces of the first steel-concrete composite beam, the second steel-concrete composite beam and the platform structure; and a surface reinforcement mesh is arranged on the prefabricated reinforced concrete slab slices, and pour concrete on the upper floor to finally form an overall combined floor system.

Preferably, the roof canopy is a light steel structure.

As can be seen above, in the rail transit elevated station in the utility model, a single-column steel-concrete composite frame structure is adopted. Because the steel-concrete structure is used in the single-column steel-concrete composite frame structure, it has light weight and smaller component size than the traditional pure concrete structure. superior. In addition, during the installation of the above-mentioned elevated station, processes such as full-house scaffolding, component templates, and a large number of steel bar bindings are omitted, and various components of the above-mentioned elevated station can be manufactured in the factory in advance, and then transported to the site for direct assembly, which can greatly improve Improve the construction quality, shorten the construction period, reduce the road occupation time, and reduce the impact on the environment.

Description of drawings

Fig. 1 is the front view of the rail transit elevated station in the embodiment of the utility model.

Fig. 2 is a cross-sectional view of the rail transit elevated station in the embodiment of the present invention.

Fig. 3 is a side view of the rail transit elevated station in the embodiment of the utility model.

detailed description

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings and examples.

This embodiment provides a rail transit elevated station.

1 to 3 are respectively a front view, a sectional view and a side view of the rail transit elevated station in the embodiment of the present invention. As shown in Figures 1 to 3, the rail transit elevated station in the embodiment of the present utility model mainly includes: multiple single-column steel-concrete composite frame structures 10;

Wherein, each single-column steel-concrete composite frame structure includes: pier column 11, first steel-concrete composite beam 12, second steel-concrete composite beam 13, platform structure 14, track beam 15 and roof canopy 16;

The top of the pier column 11 is equipped with a first combined beam-column node 21;

The first steel-concrete composite beam 12 is installed on the top of the pier column 11 through the first composite beam-column node 21;

The top of the first composite beam-column node 21 is equipped with a central column 22; the two ends of the first steel-concrete composite beam 12 are equipped with side columns 23; the top of the central column 22 is equipped with a second Composite beam-column joint 24;

The second steel-concrete composite beam 13 is installed on the top of the central column 22 and the side column 23 through the second composite beam-column node 24;

The platform structure 14 and the track beam 15 are arranged on the second steel-concrete composite beam 13; the two ends of the second steel-concrete composite beam 13 are equipped with support columns 25;

The roof canopy 16 is installed on the top of the support column 25;

The first steel-concrete composite beam 12 and the second steel-concrete composite beam 13 are both square steel composite beams; the middle part of the square steel composite beam is provided with an accommodating chamber 26, the bottom of the accommodating chamber 26 and the Concrete is poured at the connection between the accommodation cavity 26 and the first composite beam-column node 21 or the second composite beam-column node 24;

Both ends of the first steel-concrete composite beam 12, the second steel-concrete composite beam 13 and the platform structure 14 are provided with corresponding longitudinal connecting steel beams 31;

Two adjacent single-column steel-concrete composite frame structures are connected by corresponding longitudinal connecting steel beams 31 .

In the technical solution of the present utility model, since the above-mentioned rail transit elevated station adopts a single-column steel-concrete composite frame structure, the single-column steel-concrete composite frame structure uses a steel-concrete structure, so the dead weight is light, and the component size Smaller than the traditional pure concrete structure, the structure is light and beautiful, has little impact on the landscape, and has better structural ductility and superior seismic performance. In addition, during the installation of the above-mentioned elevated station, processes such as full-house scaffolding, component formwork, and a large number of steel bar bindings are omitted, and the various components of the above-mentioned elevated station can be manufactured in the factory and then assembled on site, which can greatly improve the construction quality , shorten the construction period, reduce the road occupation time, and reduce the impact on the environment.

In addition, preferably, in a specific embodiment of the present utility model, the pier column is a square steel tube concrete column, so it has better ductility and seismic performance.

In the technical solution of the present utility model, the first steel-concrete composite beam and the second steel-concrete composite beam are both square steel pipe composite beams, and the box girder (that is, the accommodation cavity) of the square steel pipe composite beam is filled with concrete, but The box girder is not completely filled with concrete, but the bottom of the box girder (that is, the lower flange) and the connection between the box girder and the first composite beam-column node or the second composite beam-column node are poured with concrete. Concrete is not poured, that is, the box girder is equivalent to half-filled concrete, thus forming a composite beam that is jointly stressed by concrete and steel pipes, making full use of the material properties, and thus can greatly reduce the weight of structural components.

In addition, preferably, in a specific embodiment of the present utility model, the central column and the side column are both concrete-filled steel tube columns, so that a structure in which concrete and steel tubes are jointly stressed can also be formed, and the self-weight of the structural components can be greatly reduced.

In addition, preferably, in a specific embodiment of the present utility model, the upper surface of the first steel-concrete composite beam, the second steel-concrete composite beam and the platform structure is also laid with a prefabricated reinforced concrete slab (the The reinforced concrete slab can be used as a floor slab); and the surface steel mesh sheet is set on the prefabricated reinforced concrete slab, and then the upper layer of concrete is poured to finally form an integral composite floor system.

The prefabricated reinforced concrete slab is a steel-concrete composite laminated floor slab, so it can also form a structure in which concrete and steel pipes are jointly stressed, reduce the self-weight of structural components, reduce construction costs, speed up construction, and at the same time ensure the overall firmness of the structure.

In addition, preferably, in a specific embodiment of the present utility model, the roof canopy is a light steel structure, so that the self-weight of the structure can be effectively reduced, and the seismic response of the structure can be reduced.

In addition, preferably, in a specific embodiment of the present utility model, the first composite beam-column node 21 and the second composite beam-column node 24 are both connected by upper flange pull-through-column interpolation composite frame structure nodes.

In the technical solution of the present utility model, the above-mentioned single-column steel-concrete composite frame structure can be assembled in the following manner:

Step a, erecting the single column of steel pipe concrete at the bottom, that is, the above-mentioned pier column;

Step b, installing the first composite beam-column node on the top of the pier column, then pouring concrete in the pier column, and pouring concrete in the core area of the first composite beam-column node;

Step c, splicing the steel beam part of the first steel-concrete composite beam with the first composite beam-column node, and pouring concrete on the lower flange of the first steel-concrete composite beam (ie, the bottom of the accommodation cavity);

Step d, install longitudinal connecting steel beams at both ends of the first steel-concrete composite beam, and connect other adjacent single-column steel-concrete composite frame structures through the longitudinal connecting steel beams, so that each single-column steel - The first floor of the concrete composite frame structure (that is, the station hall floor) is longitudinally connected into a whole;

In the technical solution of the present utility model, the space between the first steel-concrete composite beam and the second steel-concrete composite beam (including the first steel-concrete composite beam) can be called the station hall floor;

Step e, install the center column in the middle of the station hall layer (i.e. the middle part of the first steel-concrete composite beam), and splice the center column with the top of the first composite beam-column node; That is, side columns are installed at both ends of the first steel-concrete composite beam;

Step f, installing the second combined beam-column node on the top of the center column, and pouring concrete in the steel pipe of the center column;

Step g, splicing the steel beam portion of the second steel-concrete composite beam with the second composite beam-column node, and simultaneously connecting the two ends of the second steel-concrete composite beam to the side columns at the two ends of the first steel-concrete composite beam Splicing, and pouring concrete in steel pipes in the core area of the lower flange of the second steel-concrete composite beam (ie the bottom of the housing cavity), side columns and the second composite beam-column node;

Step h, installing longitudinal connecting steel beams at both ends of the second steel-concrete composite beam (i.e. the lower mezzanine), and connecting with other adjacent single-column steel-concrete composite frame structures through the longitudinal connecting steel beams, so as to Strengthen the integrity between individual column steel-concrete composite frame structures;

In the technical solution of the utility model, the space between the second steel-concrete composite beam and the platform structure (excluding the second steel-concrete composite beam) can be called the lower interlayer;

Step i, install the steel structure frame above the lower mezzanine, the specific sequence can be: first install the steel structure frame of the platform layer, and then install the vertically connected steel beams at the two ends of the platform structure, so that each single-column steel-concrete The platform layer of the combined frame structure is longitudinally connected into a whole; then, the steel frame structure of the roof canopy, the longitudinally connected steel beams and the cross bracing are installed (the cross bracing is set between the canopy columns, and only one or two spans are set) ;

In the technical solution of the utility model, the platform structure and the space between the platform structure and the roof canopy can be called the platform layer;

Step j, laying a floor slab on the upper surface of the first steel-concrete composite beam, the second steel-concrete composite beam and the platform structure, and setting the surface steel mesh on the floor, and then pouring the upper layer of concrete to finally form a whole The combined floor system; the order of floor laying and pouring can be: platform floor, lower mezzanine floor, and station hall floor. The laying process of the above floor slabs should be laid from bottom to top; moreover, the timing of laying the floor slabs should be: after the beams on each floor are assembled, the floor slabs on the same floor can be paved.

Through the above-mentioned method, the above-mentioned rail transit elevated station can be assembled and completed.

In addition, in the above specific embodiments of the present utility model, the platform layer shown in Figs. 1-3 is in the form that the track beam is located in the middle, and the platform structure is located on both sides. Similarly, the technical solution of the present invention can also be applied to the form in which the platform structure is located in the middle, and the track beams are located on both sides, which will not be repeated here. In addition, the laminated slabs of the above-mentioned single-column steel-concrete composite frame structure can also be used for composite floor slabs of profiled steel plates.

In summary, in the rail transit elevated station in the utility model, a single-column steel-concrete composite frame structure is adopted. Because the steel-concrete structure is used in the single-column steel-concrete composite frame structure, it has light weight and smaller component size than the traditional pure concrete structure. superior. In addition, during the installation of the above-mentioned elevated station, processes such as full-house scaffolding, component templates, and a large number of steel bar bindings are omitted, and various components of the above-mentioned elevated station can be manufactured in the factory in advance, and then transported to the site for direct assembly, which can greatly improve Improve the construction quality, shorten the construction period, reduce the road occupation time, and reduce the impact on the environment.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. within the spirit and principles of the present utility model shall include Within the protection scope of the utility model.

Claims (5)

1. A rail transit elevated station is characterized in that the elevated station comprises: many single-column steel-concrete composite frame structures; Among them, each single-column steel-concrete composite frame structure includes: pier column, first steel-concrete composite beam, second steel-concrete composite beam, platform structure, track beam and roof canopy; The top of the pier column is equipped with a first composite beam-column node; The first steel-concrete composite beam is installed on the top of the pier column through the first composite beam-column node; A center column is installed on the top of the first composite beam-column node; side columns are installed at both ends of the first steel-concrete composite beam; a second composite beam-column node is installed on the top of the center column; The second steel-concrete composite beam is mounted on top of the center column and side columns through the second composite beam-column joint; The platform structure and the track are arranged on the second steel-concrete composite beam; supporting columns are installed at both ends of the second steel-concrete composite beam; The roof canopy is installed on the top of the support column; Both the first steel-concrete composite beam and the second steel-concrete composite beam are square steel pipe composite beams; the middle part of the square steel pipe composite beam is provided with an accommodating chamber, and the bottom of the accommodating chamber and the accommodating chamber and the second Concrete is poured at the joint of a composite beam-column joint or a second composite beam-column joint; Both ends of the first steel-concrete composite beam, the second steel-concrete composite beam and the platform structure are provided with corresponding longitudinal connecting steel beams; Two adjacent single-column steel-concrete composite frame structures are connected by corresponding longitudinal connecting steel beams. 2. The elevated station according to claim 1, characterized in that: The piers are square steel pipe concrete columns. 3. The elevated station according to claim 1, characterized in that: The central column and the side column are all steel pipe concrete columns. 4. The elevated station according to claim 1, characterized in that: The upper surface of the first steel-concrete composite beam, the second steel-concrete composite beam and the platform structure is also laid with a prefabricated reinforced concrete slab; The upper layer is concreted to form an overall composite floor system. 5. The elevated station according to claim 1, characterized in that: The roof canopy is a light steel structure.