New main structure of transfer nodes in urban rail transit transfer stations

Abstract

A new main structure for the transfer node of an urban rail transit transfer station. The transfer station has at least two transfer lines, and the intersection of the transfer lines forms a transfer node. In the present invention, a multi-ring dome-shaped force-bearing structure is adopted as the force-bearing system of the structure at the transfer node. At the transfer node of the present invention, the local outer contour can be extended outwards, and the top beam structure adopts a circular or polygonal structure, which can resolve the unfavorable internal corner structure in terms of force, and can also increase the space of the transfer hall at the transfer node; by adopting a multi-ring dome-shaped force-bearing structure, a height difference is set between the ring beams, and the variable cross-section connecting longitudinal beams are set, which can reduce the weight of the components, and can also form an inverted-basin-shaped efficient force-bearing system. The present invention can form a standardized design of a double-line or multi-line transfer large node structure in combination with several parameters such as the line angle, the clearance limit, and the outer ring diameter, improving the design efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit construction, and more specifically, to a novel main structure of a transfer node of an urban rail transit transfer station. Background Art

[0002] Nowadays, urban rail transit is developing rapidly, and rail transit lines are developing towards a network pattern. Double-line and multi-line transfer stations are becoming more and more common. The functional forms of transfer stations are diverse. Especially at the central hubs of cities, the passenger flow of double-line and multi-line transfer stations is becoming more and more intensive, and the intersection of passenger flows at transfer nodes is becoming increasingly congested.

[0003] The standard subway station is a rectangular structure. However, at the intersection of multiple lines at the transfer node, restricted by the surrounding environment, lines, and clearances, etc., its design is often a key and difficult point, and there is currently no unified, standard, and effective construction method.

[0004] In the prior art, the typical force-bearing system of the subway transfer node structure is to set vertical and horizontal beam-column structures along the line direction under the condition of not encroaching on the clearance. As Figure 1 shown, Figure 1 is a schematic structural diagram of the force-bearing system of the structure at the traditional transfer node. As shown in the figure, two lines (line a and line b) intersect, and the included angle after intersection is α. After setting vertical and horizontal beams, there are force-bearing dead corners at all four corners. In addition, according to the requirements of lines and clearances, a column grid needs to be set, that is, structural main beams are set along one direction in the concourse layer, and support columns are set under the structural main beams. The spacing of the support columns is about 9m to form a column grid. The support columns are set densely, resulting in poor visibility in the concourse. Although the force-bearing system of the traditional beam-slab-column frame structure is simple in force-bearing, the vertical and horizontal beams set will reduce the clear height of the concourse. The clear height of the concourse layer at the transfer node is about 3.5 (after deducting decoration and beam height). Summary of the Invention

[0005] In summary, the main disadvantages of the current force-bearing system adopted by transfer stations are as follows: 1. Except for the case of orthogonal lines, for non-orthogonal lines, there are force-bearing dead corners in the force-bearing system; 2. The column grid is dense at the crowded area of the transfer node, with poor visibility and narrow space; 3. Due to the setting of vertical and horizontal beams, the clear height at the transfer node is limited, making the space appear depressing.

[0006] In order to solve the problems of the prior art, the present invention provides the following technical solutions:

[0007] A novel main structure of a transfer node of an urban rail transit transfer station, the transfer station has at least two transfer lines, the intersection point of the transfer lines forms a transfer node, and a multi-ring dome-shaped force-bearing structure is adopted as the force-bearing system of the structure at the transfer node.

[0008] Preferably, in the novel main structure of the transfer node of the urban rail transit transfer station provided by the present invention, the intersections of the intersecting transfer lines are sequentially connected to form a virtual closed geometric figure, and the centroid of the virtual closed geometric figure is used as the base point; an outer ring beam is arranged with the base point as the center of the circle, and an inner ring beam is arranged with the base point as the center of the circle. The ratio of the radius of the outer ring beam to the radius of the inner ring beam is between 3:1 and 2:1; a connecting longitudinal beam is arranged between the inner ring beam and the outer ring beam, and the inner ring beam and the outer ring beam are connected through the connecting longitudinal beam to form the multi-ring dome-shaped force-bearing structure.

[0009] Preferably, in the novel main structure of the transfer node of the urban rail transit transfer station provided by the present invention, a force-bearing beam is arranged with the base point as the center of the circle, and the radius of the force-bearing beam is greater than the radius of the outer ring beam.

[0010] Preferably, in the novel main structure of the transfer node of the urban rail transit transfer station provided by the present invention, the outer ring beam and the inner ring beam are arranged in the same horizontal plane; in the vertical height, the outer ring beam is 1.0 m - 1.2 m higher than the force-bearing beam.

[0011] Preferably, in the novel main structure of the transfer node of the urban rail transit transfer station provided by the present invention, one end of the connecting longitudinal beam is connected to the inner ring beam, and the other end of the connecting longitudinal beam sequentially passes through the outer ring beam and the force-bearing beam along a straight line and extends outward; the inner ring beam, the outer ring beam, and the force-bearing beam are connected by the connecting longitudinal beam to form an inverted basin-shaped frame structure.

[0012] Preferably, in the novel main structure of the transfer node of the urban rail transit transfer station provided by the present invention, in the direction from the inner ring beam to the outer ring beam, the cross-sectional area of the connecting longitudinal beam gradually increases; in the direction from the outer ring beam to the force-bearing beam, the cross-sectional area of the connecting longitudinal beam gradually decreases.

[0013] Preferably, in the novel main structure of the transfer node of the urban rail transit transfer station provided by the present invention, the connecting longitudinal beam is a shoulder pole beam.

[0014] Preferably, in the novel main structure of the transfer node of the urban rail transit transfer station provided by the present invention, a first structural slab is arranged within the inner range of the outer ring beam and above the multi-ring dome-shaped force-bearing structure; a second structural slab is arranged within the outer range of the outer ring beam and above the outer ring beam and the force-bearing beam, and the thickness of the second structural slab is greater than the thickness of the first structural slab.

[0015] Preferably, in the novel main structure of the transfer node of the urban rail transit transfer station provided by the present invention, a first support column is arranged on the lower side of the force-bearing beam.

[0016] Preferably, in the novel main body structure of the transfer node of the urban rail transit transfer station provided by the present invention, a second support column is arranged on the lower side of the outer ring beam, and a plurality of second support columns are arranged and are all located outside the range of the closed geometric figure; a third support column is arranged on the non-concourse floor on the lower side of the inner ring beam.

[0017] Preferably, in the novel main body structure of the transfer node of the urban rail transit transfer station provided by the present invention, the outer ring beam is a circular ring structure or a regular polygon structure, and the outer ring beam is a hoop beam; the inner ring beam is a circular ring structure or a regular polygon structure, and the inner ring beam is a hoop beam; the stress beam is a circular ring structure or a regular polygon structure, and the stress beam is a hoop beam.

[0018] The beneficial effects of the present invention are as follows:

[0019] The present invention provides a novel main body structure of the transfer node of an urban rail transit transfer station. The transfer station has at least two transfer lines, and the intersection points of the transfer lines form transfer nodes. The present invention adopts a multi-ring dome stress structure as the structural stress system at the transfer nodes.

[0020] Through its structural design, the present invention can make the local outer contour expand outwards at the transfer nodes. The top beam structures (outer ring beam, inner ring beam and stress beam) adopt circular or polygonal structures, which can resolve the unfavorable internal angle structures in terms of stress, and can also increase the space of the transfer hall at the transfer nodes; adopting a multi-ring dome stress structure, a height difference is set between the ring beams, and the inner ring roof slab (the second structural slab) is thinned, and the variable cross-section connecting longitudinal beams are set, which can reduce the weight of the components and can also form an inverted-basin type efficient stress system; the support columns of the inner ring beam in the concourse floor of the transfer node are cancelled (the original space of the inner side with a span of about 9 m for 3 spans becomes a column-free space with a single span of about 27 m), and the spatial visual effect is greatly increased; after the roof slab (the second structural slab) of the transfer node is raised by 1 m, a column-free structure is adopted under the inner ring beam, and within a range with an inner diameter of about 14 m on the inner side of the inner ring beam, it is equivalent to a beamless structural system (the clear height under the slab is about 7.65), and the clear height is increased by about 58% compared with the beam-column structural system on the inner side of the general transfer node (the clear height under the beam is about 4.85 m); combining several parameters such as the line angle, clearance, and outer ring diameter, a standardized design of the large transfer node structure for double-line or multi-line transfer can be formed, improving the design efficiency. Description of the Drawings

[0021] The specification drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. Among them:

[0022] Figure 1 It is a structural schematic diagram of the structural stress system at the traditional transfer node.

[0023] In Figure 1 it, the description of the drawings is as follows:

[0024] Line a, line b, included angle α.

[0025] Figure 2 It is a schematic plan view of the novel main structure of the transfer node of the urban rail transit transfer station in the embodiment of the present invention;

[0026] Figure 3 It is a schematic vertical sectional view of the novel main structure of the transfer node of the urban rail transit transfer station in the embodiment of the present invention.

[0027] In Figure 2 and Figure 3 it, the description of the reference numerals is as follows:

[0028] Transfer line 1, closed geometric figure 2, outer ring beam 3, inner ring beam 4, connecting longitudinal beam 5, stress beam 6, first structural slab 7, second structural slab 8, first support column 9, second support column 10, subway line track 11, subway line structure outer wall 12. Detailed implementation manners

[0029] Next, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments. Each example is provided by way of explanation of the present invention rather than a limitation of the present invention. In fact, those skilled in the art will clearly understand that modifications and variations can be made to the present invention without departing from the scope or spirit of the present invention. For example, features shown or described as part of one embodiment can be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present invention includes such modifications and variations falling within the scope of the appended claims and their equivalents.

[0030] In the description of the present invention, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention rather than requiring the present invention to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. The terms "connected" and "coupled" used in the present invention should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] Please refer to Figure 2 and Figure 3 , wherein, Figure 2It is a schematic plan view of the novel main structure of the transfer node of an urban rail transit transfer station in an embodiment of the present invention; Figure 3 It is a schematic vertical sectional view of the novel main structure of the transfer node of an urban rail transit transfer station in an embodiment of the present invention.

[0032] The present invention provides a novel main structure of a transfer node of an urban rail transit transfer station. In a transfer station, there are at least two transfer lines 1. The present invention mainly discusses the case where only two transfer lines 1 are provided.

[0033] Specifically, the two transfer lines 1 intersect, and the intersection point is the transfer node. The improvement of the present invention lies in: a multi-ring dome-shaped force-bearing structure is adopted at the transfer node as the force-bearing system of the structure at the transfer node.

[0034] The transfer line described in the present invention specifically refers to the entire subway line, including the subway line track 11 and the subway line structure outer wall 12. As Figure 2 shown, the outermost rails in the subway line track 11 (if there are two parallel subway line tracks in the same subway line, the track refers to the outermost rails of the two parallel subway line tracks) intersect to form a virtual closed geometric figure 2, and the subway line structure outer wall 12 is connected to the transfer station.

[0035] In the transfer station, each transfer line will occupy a certain width (the train running direction is the length direction, and the direction perpendicular to the length direction is the width direction. The dimension of the transfer line in the width direction is the width of the line). Then, the two transfer lines 1 intersect (intersect in space, not actually cross), and the two long sides of the transfer line 1 will cross and form four intersection points. Connecting these four intersection points in a clockwise or counterclockwise direction in sequence can form a virtual closed geometric figure 2.

[0036] The closed geometric figure 2 is generally a rhombus, or other regular shapes. For example, when the transfer lines 1 intersect perpendicularly, the closed geometric figure 2 is a square.

[0037] Taking the centroid of the above-mentioned virtual closed geometric figure 2 as the base point, an outer ring beam 3 is set with the base point as the center, an inner ring beam 4 is set with the base point as the center, and a force-bearing beam 6 is set with the base point as the center.

[0038] The ratio of the radius of the outer ring beam 3 to the radius of the inner ring beam 4 is between 3:1 and 2:1, and specifically can be 3:1, 2.5:1, 2:1.

[0039] A connecting longitudinal beam 5 is arranged between the inner ring beam 4 and the outer ring beam 3. The inner ring beam 4 and the outer ring beam 3 are connected through the connecting longitudinal beam 5 to form a multi-ring dome-shaped force-bearing structure.

[0040] In the present invention, the outer ring beam 3, the inner ring beam 4, and the stress beam 6 can all be regarded as an annular surface. Then, the outer ring beam 3, the inner ring beam 4, and the stress beam 6 are coaxially arranged, and the outer ring beam 3 and the inner ring beam 4 are higher than the stress beam 6. In an embodiment of the present invention, the outer ring beam 3 and the inner ring beam 4 are arranged in the same horizontal plane. In terms of vertical height, the outer ring beam 3 is 1.0 m - 1.2 m higher than the stress beam 6, specifically, it can be 1.0 m, 1.1 m, or 1.2 m.

[0041] The outer ring beam 3, the inner ring beam 4, and the stress beam 6 are connected by the connecting longitudinal beam 5 to form a complete stress system for the transfer node.

[0042] Specifically, one end of the connecting longitudinal beam 5 is connected to the inner ring beam 4, and the other end of the connecting longitudinal beam 5 sequentially passes through the outer ring beam 3 and the stress beam 6 along a straight line and extends outward. The inner ring beam 4, the outer ring beam 3, and the stress beam 6 are connected by the connecting longitudinal beam 5 to form an inverted basin-shaped frame structure.

[0043] In the present invention, the connecting longitudinal beam 5 is a shoulder beam, and the connecting longitudinal beam 5 is a variable cross-section connecting longitudinal beam 5. Specifically, in the direction from the inner ring beam 4 to the outer ring beam 3, the cross-sectional area of the connecting longitudinal beam 5 gradually increases; in the direction from the outer ring beam 3 to the stress beam 6, the cross-sectional area of the connecting longitudinal beam 5 gradually decreases. The change in the cross-sectional area of the connecting longitudinal beam 5 is mainly reflected in the change in the overall height of the connecting longitudinal beam 5, that is, the width of the connecting longitudinal beam 5 remains unchanged, and the change in its height will cause the change in the cross-sectional area of the connecting longitudinal beam 5.

[0044] There are two setting methods for the connecting longitudinal beam 5. One is: parallel to the longitudinal beam of the transfer line 1 and butt-jointed at the end, and butt-jointed with the longitudinal beam of the transfer line 1 to form a complete longitudinal beam structure; the other is: with the base point as the radiation center, arranged in a radial shape.

[0045] In the above structural design, the outer ring beam 3, the inner ring beam 4, the stress beam 6, and the connecting longitudinal beam 5 form a set of skeleton structures. After the skeleton structure is built, it is also necessary to lay a structural slab above the skeleton structure to form a transfer station roof structure with a certain load-bearing capacity and a certain waterproof performance.

[0046] In the present invention, a first structural slab 7 is arranged inside the outer ring beam 3 and above the multi-ring dome-shaped stress structure; a second structural slab 8 is arranged outside the outer ring beam 3 and above the outer ring beam 3 and the stress beam 6. The thickness of the second structural slab 8 is greater than the thickness of the first structural slab 7. During application, the thickness of the second structural slab 8 can be between 750 mm and 850 mm, the thickness of the first structural slab 7 can be between 480 mm and 520 mm, soil is covered above the first structural slab 7 and the soil covering thickness is between 1.8 m and 2.2 m, and soil is covered above the second structural slab 8 and the soil covering thickness is between 3 m and 3.5 m.

[0047] Specifically, a first support column 9 is provided on the lower side of the stress beam 6. The first support columns 9 are arranged at equal intervals along the stress beam 6. The first support columns 9 provide a supporting effect on the stress beam 6, thereby propping up the entire multi-ring dome-shaped stress structure.

[0048] To improve the stability of the multi-ring dome-shaped stress structure, a second support column 10 is provided on the lower side of the outer ring beam 3. The second support columns 10 are all located outside the range of the closed geometric figure 2.

[0049] Specifically, the outer ring beam 3 is a circular ring structure or a regular polygon structure, and the outer ring beam 3 is a hoop beam; the inner ring beam 4 is a circular ring structure or a regular polygon structure, and the inner ring beam 4 is a hoop beam; the stress beam 6 is a circular ring structure or a regular polygon structure, and the stress beam 6 is a hoop beam. A third support column is provided on the non-concourse floor below the inner ring beam 4, that is, the support columns on the negative first floor (or concourse floor) are cancelled, increasing the column-free space of a single span and facilitating the flow of high-density passenger flow.

[0050] The technical problem to be solved by the present invention is to provide a standard and unified and effective method applicable to the design of the main structure of the transfer node of double-line or multi-line transfer stations at various angles.

[0051] The present invention appropriately expands the outer contour in combination with the surrounding controlled boundary conditions, the large-space effect and the functional requirements. The above-mentioned surrounding controlled boundary conditions generally refer to the distance requirements for construction by surrounding buildings and the space for pipeline relocation, etc.

[0052] The ring beams (outer ring beam 3, inner ring beam 4 and stress beam 6) adopt a polygon or circular structure, which can make the included angle between the transfer line and the ring beam > 90°, so that the internal corner structure can be cancelled (please refer to Figure 2, when viewed from above, the side wall of the transfer line is straight, and the stress beam 6 is circular. When the straight line passes through the center of the circle of the circular shape, the angle between the tangent line at the intersection of the straight line and the circle and the straight line is 90°. In actual situations, the side wall of the transfer line must be on both sides of the center of the stress beam 6. Then, the included angle between the side wall of the transfer line and the stress beam 6 must be greater than 90°. Therefore, the internal corner structure can be cancelled), and the space of the transfer hall can be increased. At the transfer node, the main structure of the hall adopts a multi-ring dome stress system. Take the first ring of columns outside the virtual rhombus formed by the intersection of the two lines (transfer lines) (this ring of columns is not provided according to conditions such as line clearance). That is, the second support column 10 forms an outer ring support column system to support the outer ring beam 3 (the radius of this ring is taken as R1). From the outer ring beam 3, contract inward by a distance of (1 / 2 to 1 / 3)R1 to set the inner ring beam 4 (the radius of the inner ring beam 4 is taken as r, and, corresponding to the inner ring beam 4, the column structure can be cancelled according to the effect on the negative first floor). The inner side structure elevation of the outer ring beam 3 is raised according to conditions such as on-site pipelines, which can not only reduce the load of the large-span structure inside the large ring, make the whole structure form an inverted basin-shaped structure, but also increase the structural net height, reflect the large space and large vision of the transfer hall, and form a structural feature. The outermost third ring, that is, the stress beam 6 (the radius of the stress beam 6 is taken as R2), is set in the outermost span on the outside of the outer ring beam 3 to form a stress structure. A longitudinal main crossbeam (connecting the longitudinal beam 5) is set between the inner ring beam 4 and the outer ring beam 3, and the force is transmitted to the column grid by the main crossbeam. The main structure of the entire transfer hall can determine a complete set of design schemes according to several parameters such as the line included angle, line spacing, clearance, and ring beam radius, and form a standardized design for the transfer hall of a double-line or multi-line transfer station.

[0053] The advantages of the novel main structure of the transfer node of the urban rail transit transfer station provided by the present invention are as follows: It can appropriately expand the outer contour of the structure in combination with the surrounding environment. The outer ring beam 3 and the inner ring beam 4 adopt polygonal or circular structures, which can effectively remove the stress internal corners and can also expand the space of the transfer node; at the transfer structure, the transfer hall adopts a multi-ring dome stress structure form. In terms of stress, by setting a height difference between the outer ring beam 3 and the stress beam 6, and setting a variable-section connecting longitudinal beam 5 between the outer ring beam 3 and the inner ring beam 4, the self-weight of the beam and slab components and the weight of the upper overburden can be reduced. The connecting longitudinal beam 5 connects the hoop of the multi-ring beams (outer ring beam 3, inner ring beam 4, and stress beam 6) to form an inverted basin-shaped efficient stress system; by locally expanding the transfer node, extracting the inner column grid of the concourse layer, and raising the inner ring space, not only the congestion and depression in the high-density passenger flow area of the concourse of the transfer node are eliminated, but also the transparency of the large space and large vision of the transfer hall is brought; a complete set of design schemes for the main structure can be determined according to several parameters such as the line included angle, line spacing, clearance, and outer ring radius, forming a standardized design and improving the efficiency.

[0054] Take the centroid of the polygon closed geometric figure formed by the intersection of two transfer lines as the base point. Arrange the column grid according to the line spacing and clearance requirements. Take the first row of columns outside the range of the closed geometric figure as the second support column 10 for supporting the outer ring beam 3. The radius of the outer ring beam 3 is R1. Combining the column span arrangement and the surrounding control conditions, the outer ring beam 3 forms a stress beam 6 in the outer side span. The outer ring shrinks inward by a distance of (1 / 2 - 1 / 3)R1 and sets the inner ring beam 4 in combination with the column grid conditions of the inner negative second floor (support columns may not be provided at the positions corresponding to the inner ring beam 4 on the negative first floor). The radius of the inner ring beam 4 is r. All three ring beams are hoop beams, and variable cross-section main longitudinal shoulder beams are set at the positions of the columns between the hoop beams.

[0055] A first structural slab 7 is set within the inner side range of the outer ring beam 3. The first structural slab 7 is raised, that is, the outer ring beam 3 is raised relative to the stress beam 6, so that the structural slab on the inner side of the outer ring beam 3 is also raised accordingly. Specifically, the raising dimension is determined in combination with the pipeline conditions. The first structural slab 7 is thinned, which can not only reduce the vertical load but also increase the clear height of the hall.

[0056] A specific implementation scheme of the present invention is as follows:

[0057] According to the clearance and column grid arrangement, take the centroid of the virtual closed geometric figure 2 (rhombus) formed by the intersection of the two lines as the base point. Take R1 of the outer ring beam as 14m, and R2 of the stress beam 6 as 22m (the nearest retaining wall of the surrounding buildings on site is about 4m, and sewage pipes and gas pipes need to be relocated between them). Take r of the inner ring beam 4 as 1 / 2R, which is 7m, and set a three-ring dome structure. To ensure the large space effect, cancel the columns at the positions corresponding to the inner ring beam 4 on the negative first floor. Set connecting longitudinal beams 5 between the three rings. The connecting longitudinal beams 5 are variable cross-section shoulder beams, and their dimensions are taken as 1.4x2.8m. According to the pipeline requirements, the soil covering thickness within the inner side range of the outer ring beam 3 is taken as 2m, the thickness of the first structural slab 7 is taken as 500mm, the soil covering outside the outer ring beam 3 is taken as 3 - 3.5m, and the thickness of the second structural slab 8 is taken as 800mm. The height difference between the outer ring beam 3 and the inner ring beam 4 and the stress beam 6 is 1m. Based on the above design, the actual effect is as follows: At the intersection node, there are no columns blocking the view within the inner side diameter of 28m in the concourse layer, and within the inner ring diameter of 14m, the structural net height is about 7.7m, and the net height after decoration is 6m.

[0058] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A novel main structure of the transfer node of an urban rail transit transfer station. Only two transfer lines (1) are provided in the transfer station, and the intersection point of the transfer lines forms a transfer node. It is characterized in that At the transfer node, a multi-ring dome type force-bearing structure is adopted as the force-bearing system of the structure at the transfer node; Connect the intersection points of the intersecting transfer lines in sequence to form a virtual closed geometric figure (2), and use the centroid of the virtual closed geometric figure as the base point; An outer ring beam (3) is set with the base point as the center of the circle, and an inner ring beam (4) is set with the base point as the center of the circle. The ratio of the radius of the outer ring beam to the radius of the inner ring beam is between 3:1 and 2:1; A connecting longitudinal beam (5) is arranged between the inner ring beam and the outer ring beam. The inner ring beam and the outer ring beam are connected through the connecting longitudinal beam to form the multi-ring dome type force-bearing structure; A force-bearing beam (6) is set with the base point as the center of the circle, and the radius of the force-bearing beam is greater than the radius of the outer ring beam; One end of the connecting longitudinal beam is connected to the inner ring beam, and the other end of the connecting longitudinal beam sequentially passes through the outer ring beam and the force-bearing beam along a straight line and extends outward; The inner ring beam, the outer ring beam, and the force-bearing beam are connected by the connecting longitudinal beam and form an inverted basin-shaped frame structure; In the direction from the inner ring beam to the outer ring beam, the cross-sectional area of the connecting longitudinal beam gradually increases; In the direction from the outer ring beam to the force-bearing beam, the cross-sectional area of the connecting longitudinal beam gradually decreases; The change in the cross-sectional area of the connecting longitudinal beam is mainly reflected in the change in the overall height of the connecting longitudinal beam, that is, the width of the connecting longitudinal beam remains unchanged, and the change in its height will cause the change in the cross-sectional area of the connecting longitudinal beam; The connecting longitudinal beam is arranged in a radial manner with the base point as the radiation center.

2. The novel main structure of the transfer node of the urban rail transit transfer station according to claim 1, characterized in that The outer ring beam and the inner ring beam are arranged in the same horizontal plane; In the vertical height, the outer ring beam is 1.0 m - 1.2 m higher than the force-bearing beam.

3. The novel main structure of the transfer node of the urban rail transit transfer station according to claim 1, characterized in that The connecting longitudinal beam is a shoulder beam.

4. The novel main structure of the transfer node of the urban rail transit transfer station according to claim 1, characterized in that A first structural slab (7) is arranged within the inner range of the outer ring beam and above the multi-ring dome type force-bearing structure; A second structural slab (8) is arranged outside the outer ring beam and above the outer ring beam and the force-bearing beam. The thickness of the second structural slab is greater than the thickness of the first structural slab.

5. The novel main structure of the transfer node of the urban rail transit transfer station according to claim 1, characterized in that A first support column (9) is arranged on the lower side of the force-bearing beam.

6. The novel main structure of the transfer node of the urban rail transit transfer station according to claim 5, characterized in that A second support column (10) is arranged on the lower side of the outer ring beam. A plurality of second support columns are arranged and are all outside the range of the closed geometric figure; A third support column is provided on the non-concourse floor on the lower side of the inner ring beam.

7. The novel main structure of the transfer node of the urban rail transit transfer station according to any one of claims 1 to 6, characterized in that The outer ring beam is a circular ring structure or a regular polygon structure, and the outer ring beam is a hoop beam; The inner ring beam is a circular ring structure or a regular polygon structure, and the inner ring beam is a hoop beam; The stress beam is a circular ring structure or a regular polygon structure, and the stress beam is a hoop beam.

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