A type of magnetic levitation pipeline bridge

Abstract

This application provides a maglev pipeline bridge, including a substructure, a main beam, and a maglev pipeline. The main beam is located on top of the substructure, and its interior has a channel extending longitudinally along the bridge direction. The maglev pipeline is disposed within the channel. The maglev pipeline bridge of this application embodiment exhibits good structural stability.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, and in particular to a maglev tube bridge. Background Technology

[0002] Wheel-rail transit systems are currently the mainstream system in the field of rail transit technology. However, due to limitations such as air resistance, wheel-rail adhesion, and operating noise, it is difficult to achieve a significant increase in operating speed economically under the current technological level. To meet the demand for higher economical operating speeds, low-vacuum tube magnetic levitation technology reduces wheel-rail friction and vibration by utilizing magnetic levitation, and creates a low-vacuum operating environment in the magnetic levitation tube to reduce air resistance and noise during train operation, thereby achieving higher travel speeds.

[0003] In related technologies, the maglev pipeline of a maglev bridge is directly installed on the bridge piers, requiring both good sealing and direct bearing of vertical loads. However, because the maglev pipeline is directly exposed to the external environment, it is prone to thermal stress and expansion / contraction deformation under temperature influences, thus affecting the structural stability of the maglev bridge. Summary of the Invention

[0004] In view of this, the main objective of the embodiments of this application is to provide a magnetic levitation pipeline bridge with better structural stability.

[0005] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0006] This application provides a magnetic levitation pipeline bridge, including:

[0007] Substructure;

[0008] The main beam is located on top of the substructure and has a channel extending longitudinally along the bridge direction inside.

[0009] A maglev pipeline, wherein the maglev pipeline is disposed in the channel.

[0010] In one embodiment, the maglev pipeline bridge includes two maglev pipelines, which are spaced apart along the transverse direction of the bridge.

[0011] In one embodiment, the main beam is a box girder.

[0012] In one embodiment, the outer contour of the cross-section of the box girder is quadrilateral or circular.

[0013] In one embodiment, the maglev tube bridge includes two box girders spaced apart along the transverse direction, and the two maglev tubes are respectively arranged in the channels of the corresponding box girders.

[0014] In one embodiment, the channel is divided into two sub-channels extending along the longitudinal direction of the bridge, and the two magnetic levitation pipes are respectively arranged in the corresponding sub-channels.

[0015] In one embodiment, the maglev pipeline bridge includes fasteners and a base plate disposed on the bottom wall of the channel, and the maglev pipeline is connected to the base plate via the fasteners.

[0016] In one embodiment, the maglev pipe is a metal pipe; and / or, the wall thickness of the maglev pipe is not greater than 24 mm and not less than 12 mm; and / or, the main beam is a concrete beam.

[0017] In one embodiment, the substructure includes a cap beam, double column piers, and a foundation, with the main beam positioned on top of the cap beam and the double column piers located between the cap beam and the foundation.

[0018] In one embodiment, the substructure includes a single-column pier and a foundation located at the bottom of the single-column pier, and the main beam is disposed on top of the single-column pier.

[0019] This application provides a maglev pipeline bridge, which has a main beam with a channel extending longitudinally inside the main beam. The maglev pipeline is placed inside the channel to avoid exposing the maglev pipeline to the external environment. This reduces the impact of external temperature on the maglev pipeline and prevents the internal temperature stress and expansion / contraction deformation of the maglev pipeline from affecting the substructure of the maglev pipeline bridge, thereby improving the structural stability of the maglev pipeline bridge. Attached Figure Description

[0020] Figure 1 This is a schematic cross-sectional view of a magnetic levitation pipeline bridge along the longitudinal direction according to an embodiment of this application;

[0021] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0022] Figure 3 This is a schematic cross-sectional view of the maglev pipeline bridge at the bridge pier along the transverse direction, according to an embodiment of this application.

[0023] Figure 4 This is a schematic cross-sectional view of the maglev pipeline bridge at the bridge pier along the transverse direction, according to another embodiment of this application.

[0024] Figure 5 This is a cross-sectional schematic diagram of the maglev pipeline bridge at the bridge pier along the transverse direction, according to another embodiment of this application.

[0025] Figure 6 for Figure 5 A magnified view of a section at point B.

[0026] Explanation of reference numerals in the attached figures

[0027] Substructure 10; Cap beam 11; Double column pier 12; Foundation 13; Single column pier 14; Main beam 20; Channel 20a; Sub-channel 20aa; Box girder 21; Maglev pipe 30; Fastener 40; Base plate 50; Maglev train 60. Detailed Implementation

[0028] In this application, the orientation or positional relationship of "top", "bottom", "longitudinal bridge direction", and "vertical" is based on the appendix. Figure 1 The orientation or positional relationship shown, the "transverse bridge direction" orientation or positional relationship is based on the attached... Figure 3 The orientation or positional relationship shown is for illustrative purposes only and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0029] One embodiment of this application provides a magnetic levitation pipeline bridge; please refer to [link / reference]. Figure 1 and Figure 2 It includes a substructure 10, a main beam 20, and a maglev tube 30. The main beam 20 is located on top of the substructure 10, and the interior of the main beam 20 has a channel 20a extending along the longitudinal direction of the bridge, in which the maglev tube 30 is located.

[0030] Maglev pipe 30 is a pipe for the maglev train 60 to travel inside the pipe. It has good sealing performance and can withstand the loads such as air pressure difference and temperature stress inside and outside the pipe.

[0031] In the related technologies, the maglev pipeline bridge directly bears the vertical load through the maglev pipeline 30. The pipe wall thickness is between 32mm and 48mm, which is relatively large, requires a lot of material, and results in a high engineering cost for the maglev pipeline 30.

[0032] In this embodiment of the maglev pipeline bridge, the main beam 20 bears the vertical load, and the maglev pipeline 30 is arranged in the channel 20a. This reduces the impact of external temperature on the maglev pipeline 30. Furthermore, while ensuring good sealing, the maglev pipeline 30 does not need to meet high mechanical performance requirements, thus allowing for a reduction in the wall thickness of the maglev pipeline 30. This reduces material usage and ensures the engineering economy of the maglev pipeline bridge. For example, the wall thickness of the maglev pipeline is no greater than 24mm and no less than 12mm.

[0033] The material of the maglev pipe 30 can be selected according to the actual situation. For example, the maglev pipe 30 can be a metal pipe, such as steel or stainless steel. Since the maglev pipe 30 is made of metal, the entire maglev pipe 30 can be welded into a whole, which can ensure that the entire maglev pipe 30 has good sealing performance.

[0034] The maglev tube 30 primarily serves a sealing function, creating a low-vacuum, sealed tube space within itself to meet the operational requirements of the maglev train 60. The main beam 20 bears the vertical load and transfers it to the foundation through the substructure 10. This allows the maglev tube bridge to possess both high rigidity and smoother force transmission, resulting in superior load-bearing performance.

[0035] The maglev pipeline bridge of this embodiment is provided with a main beam 20. The main beam 20 has a channel 20a extending along the longitudinal direction of the bridge. The maglev pipeline 30 is arranged in the channel 20a to avoid the maglev pipeline 30 being exposed to the external environment. This reduces the influence of the external temperature on the maglev pipeline 30 and avoids the influence of the internal temperature stress and expansion and contraction deformation of the maglev pipeline 30 on the lower structure 10 of the maglev pipeline bridge, thereby improving the structural stability of the maglev pipeline bridge.

[0036] Meanwhile, as the influence of temperature on the maglev pipe 30 is reduced, the temperature stress and expansion deformation inside the maglev pipe 30 are also reduced. As a result, the installation of expansion joints can be reduced or eliminated.

[0037] The main girder 20 extends longitudinally along the bridge to bear the vertical loads from the maglev tube 30, maglev train 60, etc. The material of the main girder 20 can be selected according to the actual situation; for example, the main girder 20 can be a concrete beam. Concrete beams have high stiffness, small deformation, and low cost, making them economical and easy to construct.

[0038] It should be noted that you should refer to [link / reference]. Figures 3 to 5 One or more maglev pipes 30 can be installed on the main beam 20. For example, the maglev pipe bridge includes two maglev pipes 30, which are spaced apart along the transverse direction of the bridge. This can meet the installation requirements of different engineering projects.

[0039] It is understandable that the two maglev tubes 30 are spaced apart on the top of the lower structure 10 and located in the channel 20a of the main beam 20. Depending on the actual structure of the main beam 20, the two maglev tubes 30 can be spaced apart in the same channel 20a, which simplifies the structure of the main beam 20 and saves material, or they can be placed in different sub-channels 20aa.

[0040] For example, please refer to Figure 4 Channel 20a is divided into two sub-channels 20aa extending along the longitudinal direction of the bridge, and two magnetic levitation pipes 30 are respectively set in the corresponding sub-channels 20aa.

[0041] In other words, the channel 20a inside the main beam 20 is divided into two sub-channels 20aa. On the one hand, this can prevent the channel 20a from being too large, thus affecting the stress performance of the main beam 20. On the other hand, it can prevent interference between the two maglev pipes 30 due to external factors.

[0042] The main beam 20 in the maglev tube bridge is of different types, and its stress characteristics and effects are also different. For example, the main beam 20 is a box girder 21.

[0043] Specifically, the box girder 21 includes a bottom plate, a top plate, and two web plates disposed between the bottom plate and the top plate. The two web plates are spaced apart along the transverse direction of the bridge, and the bottom plate, the top plate, and the web plates together form a passage 20a.

[0044] In one embodiment, the outer contour of the cross-section of the box girder 21 is quadrilateral.

[0045] Specifically, since the maglev train 60 travels inside the maglev tube 30, and the maglev tube 30 is located in the internal passage 20a of the box girder 21, the vertical loads generated by the maglev train 60 and the maglev tube 30 are all applied to the bottom plate of the box girder 21, and the stress on the top plate is relatively small. Therefore, the flange located at the top of the box girder 21 can be eliminated. Under the premise of meeting the stress requirements of the maglev tube bridge, the amount of material used can be reduced, the cost can be saved, and the economic efficiency of the project can be improved.

[0046] It is understandable that the outer contour of the cross-section of the box girder 21 can also be set to other shapes, such as circular, polygonal or other box-shaped outer contours.

[0047] In one embodiment, please refer to Figure 5 The maglev tube bridge includes two box girders 21 spaced apart along the transverse direction, and two maglev tubes 30 are respectively installed in the channels 20a of the corresponding box girders 21.

[0048] In other words, the maglev tube 30 and the box girder 21 are in one-to-one correspondence, and the two box girders 21 are independent and do not interfere with each other. As a result, the size of a single box girder 21 can be reduced, avoiding the box girder 21 being too large to be difficult to transport and construct.

[0049] In one embodiment, please refer to Figure 6 The maglev pipeline bridge includes fasteners 40 and a base plate 50 set on the bottom wall of the channel 20a. The maglev pipeline 30 is connected to the base plate 50 through fasteners 40.

[0050] Specifically, the fastener 40 has a certain degree of elasticity, and the magnetic levitation pipe 30 can be constrained in the channel 20a inside the main beam 20 by the fastener 40 and the base plate 50.

[0051] In one embodiment, please refer to Figure 5The substructure 10 includes a cap beam 11, double column piers 12 and a foundation 13. The main beam 20 is located on top of the cap beam 11, and the double column piers 12 are located between the cap beam 11 and the foundation 13.

[0052] Specifically, the main beam 20 can transfer the vertical load from the maglev pipe 30 to the foundation 13 through the cap beam 11 and the double column piers 12. The cap beam 11 and the double column piers 12 are located between the main beam 20 and the foundation 13, and mainly play the role of connecting the upper and lower parts. They can support, distribute and transfer the vertical load from the main beam 20, making the force transmission of the maglev pipe bridge smoother.

[0053] It should be noted that the specific shape of the cap beam 11 can be set according to the size of the main beam 20 and the actual engineering situation. For example, the two ends of the top of the cap beam protrude upward to form a stop structure, and the main beam 20 is located in the space between the two stop blocks.

[0054] In one specific embodiment, please refer to Figure 5 The cap beam 11 is a concrete beam, and the double column pier 12 includes two concrete columns. The horizontal projection of the two concrete columns corresponds to and coincides with the horizontal projection of the maglev pipe 30. That is, the concrete columns are respectively set directly below the bottom of the maglev pipe 30 to achieve a better force transmission effect.

[0055] In one specific embodiment, please refer to Figure 5 The substructure 10 also includes a tie beam, which connects the two concrete columns of the double column pier 12. This tie beam can connect the two concrete columns into a whole to bear the load, which can improve the stress situation of the concrete columns and strengthen the overall rigidity of the substructure 10.

[0056] In one embodiment, please refer to Figure 3 and Figure 4 The substructure 10 includes a single-column pier 14 and a foundation 13 located at the bottom of the single-column pier 14. The main beam 20 is set on the top of the single-column pier 14. Thus, the single-column pier 14 can transfer the vertical load from the main beam 20 to the foundation 13, achieving a good force transmission effect.

[0057] It should be noted that a support is provided between the substructure 10 and the main beam 20. The top of the single column pier 14 or cap beam 11 of the substructure 10 also has a support pad. The support is located between the support pad and the main beam 20, which can reliably transfer the load and deformation borne by the main beam 20 to the substructure 10.

[0058] In one specific embodiment, please refer to Figures 3 to 5The foundation 13 includes pile foundation 13 and a pile cap set on pile foundation 13. First, the pile foundation 13 and the pile cap are constructed, then the bridge piers (single column pier 14 or double column pier 12) are constructed on the pile cap, then the main beam 20 is constructed, the maglev pipeline 30 is installed into the channel 20a, and finally the equipment and auxiliary structures inside the pipeline are installed, thus forming a maglev pipeline bridge.

[0059] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in a specific embodiment," or "exemplary," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0060] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A magnetic levitation tube bridge, characterized in that The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge.

2. The magnetic levitation tube bridge according to claim 1, characterized in that The application relates to a magnetic levitation tube bridge.

3. The magnetic levitation tube bridge according to claim 2, characterized in that The application relates to a magnetic levitation tube bridge.

4. The magnetic levitation tube bridge according to claim 3, characterized in that The application relates to a magnetic levitation tube bridge.

5. The magnetic levitation tube bridge according to claim 3, characterized in that The application relates to a magnetic levitation tube bridge.

6. The magnetic levitation tube bridge according to claim 2, characterized in that The application relates to a magnetic levitation tube bridge.

7. The magnetic levitation tube bridge according to claim 1, characterized in that The application relates to a magnetic levitation tube bridge.

8. The magnetic levitation tube bridge of claim 1, wherein, The application relates to a magnetic levitation tube bridge.

9. The magnetic levitation tube bridge according to any one of claims 1 to 8, characterized in that The application relates to a magnetic levitation tube bridge.

10. The magnetic levitation tube bridge according to any one of claims 1 to 8, characterized in that The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation tube bridge. The application relates to a magnetic levitation

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