CN110029538A - It is a kind of containing the high-speed magnetic suspension rails of the beam type section of track in length and breadth and bridge beam structure - Google Patents
It is a kind of containing the high-speed magnetic suspension rails of the beam type section of track in length and breadth and bridge beam structure Download PDFInfo
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- CN110029538A CN110029538A CN201910233419.4A CN201910233419A CN110029538A CN 110029538 A CN110029538 A CN 110029538A CN 201910233419 A CN201910233419 A CN 201910233419A CN 110029538 A CN110029538 A CN 110029538A
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- 239000000725 suspension Substances 0.000 title abstract description 30
- 239000004567 concrete Substances 0.000 claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000005339 levitation Methods 0.000 claims description 44
- 229910000831 Steel Inorganic materials 0.000 claims description 42
- 239000010959 steel Substances 0.000 claims description 42
- 238000004873 anchoring Methods 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 2
- 239000011796 hollow space material Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 15
- 238000012423 maintenance Methods 0.000 abstract description 3
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/30—Tracks for magnetic suspension or levitation vehicles
- E01B25/305—Rails or supporting constructions
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Railway Tracks (AREA)
Abstract
The invention discloses a kind of containing the high-speed magnetic suspension rails of the beam type section of track in length and breadth and bridge beam structure, including beams of concrete (1) and the track (2) being set at the top of the beams of concrete (1), it further include the beam type section of track in length and breadth, it is installed on the track (2) by fastener system (3), including two stringers being arranged along line direction and perpendicular to several crossbeams of line direction setting, the crossbeam includes section of track crossbeam top plate (4), section of track crossbeam bottom plate (5) and section of track cantilever diaphragm (6), the stringer includes that track function part slides top plate (7), magnetic guide plate (8) section of track longitudinal-beam web plate (9) and π fashioned iron (10) of track function part.Structure of the invention, track structure is completely separable with bridge structure, it is realized and is accurately positioned in the track that construction period can pour after using the precision of beam type section of track track all directions in length and breadth, track elevation can be adjusted by fastener system during operation maintenance.
Description
Technical Field
The invention belongs to the technical field of magnetic levitation track traffic, and particularly relates to a high-speed magnetic levitation track and bridge beam structure comprising longitudinal and transverse beam type track panels.
Background
The magnetic suspension traffic system is a novel ground passenger traffic system, and is obviously different from the traditional wheel-rail traffic system in that a vehicle body is suspended above a track by virtue of suspension force, and a walking part of the vehicle body is not in contact with the track. The propulsion generated by the linear induction motor travels on the track. The electrified suspension electromagnet on the suspension frame of the normally-conducting high-speed maglev train and the long stator coil on the track mutually attract each other to provide suspension force for the train, suck the train upwards, and ensure a stable suspension gap by controlling suspension exciting current. The suspension clearance between the electromagnet and the track is generally controlled to be 8-12 mm.
The electrified guide electromagnet on the suspension frame interacts with the guide plate on the side surface of the track to provide a guide force, so that a certain lateral distance is kept between the vehicle body and the track, and the non-contact guide in the horizontal direction is realized. The high-speed maglev train is driven by a non-vehicle-mounted power device, namely a long stator Linear Synchronous Motor (LSM), a suspension electromagnet coil is arranged at the lower part of a vehicle suspension frame, a long stator coil is arranged on a track, and when the long stator coil arranged along the line direction provides three-phase frequency modulation and amplitude modulation power, the train is pushed to advance under the action of electromagnetic induction, so that the complete non-contact traction and braking of the train in a suspension state are realized.
At present, the normal-conducting high-speed magnetic suspension traffic adopts a track beam structure form that a bridge and a track functional part are integrated, and the track functional part is arranged at two cantilever end parts (as shown in figure 1) of a beam part structure top plate of the bridge to form a track beam. Patent document CN1715561A discloses a high-speed magnetic levitation superposed type track beam connection mechanism, a track beam and a manufacturing method thereof, which comprises a support steel beam and a welding nail, wherein the connection mechanism is provided with a reinforced concrete grouting fixed connection part which is positioned in the middle part of a track plate and is used for processing the track plate and the bearing main beam to be connected into a whole, the support steel beam is H-shaped and is respectively embedded and positioned at two ends of the track plate by the welding nail, and the support steel beam is supported between the track plate and the bearing main beam. In addition, there is also the structural style that the roof that slides, magnetism deflector and the stator core of track function spare are directly pre-buried in concrete beam form the track roof beam, but the foundation all is the structural system that track function spare and bridge beam portion structure unite two into one, and it has following not enough:
(1) the track function piece is installed at two cantilever tip of the roof beam portion structure roof of bridge and forms the structural style of track roof beam, and is high to the manufacturing accuracy requirement of track function piece and bridge roof beam portion structure, and not only the track function piece needs the finish machining to handle, has all proposed promptly as harsh requirement to precast formwork, concrete placement quality, precast beam's of bridge maintenance etc. moreover, has caused track roof beam construction technology complicacy, and the cost of prefabricating and erectting all greatly increased moreover.
(2) During installation of the track functional part, in order to achieve design of the track surface elevation and line shape, the elevation of the track surface needs to be adjusted by integrally adjusting the elevation of the whole track beam through a jack, and the track surface elevation adjusting process in the construction process is very complex.
(3) During the operation of the high-speed magnetic suspension traffic, after the rail surface changes due to settlement, concrete shrinkage and creep and the like, the rail surface elevation can be adjusted only through the support of the beam part structure, and no other method is used for adjusting the rail surface elevation. When the rail surface elevation is adjusted through the support, the rail surface elevation is adjusted after the whole rail beam is jacked up by the jack, time and labor are wasted, and the linear maintenance of the rail is inconvenient.
Disclosure of Invention
Aiming at the defects or improvement requirements of the prior art, the invention provides a high-speed magnetic levitation track containing a longitudinal and transverse beam type track panel and a bridge beam structure, wherein the track structure is completely separated from the bridge structure, the track structure adopts the longitudinal and transverse beam type track panel which is fixedly arranged on a track bearing platform at the top of the bridge through a fastener system, and the precision positioning of the track in all directions can be realized through a post-cast track bearing platform, so that the problems of complex structure, high manufacturing precision requirement, complex construction process and the like of the traditional high-speed magnetic levitation track and the bridge are solved.
In order to achieve the above object, the present invention provides a high-speed magnetic levitation track and bridge beam structure including a crossbar beam-type track panel, including a concrete beam and a track-bearing platform arranged on the top of the concrete beam, the structure further includes:
the longitudinal and transverse beam type track panel comprises two longitudinal beams arranged along the line direction and a plurality of transverse beams arranged perpendicular to the line direction, is fixedly installed on the rail bearing platform through a fastener system, and adjusts the elevation of the longitudinal and transverse beam type track panel through the fastener system so as to adjust the elevation of a track surface;
the cross beam comprises a track panel cross beam top plate, a track panel cross beam bottom plate and a track panel cross beam web plate, and the three form a steel cross beam with an I-shaped cross section, an H-shaped cross section, an inverted V-shaped cross section or a box-shaped cross section;
the rail panel longitudinal beam comprises a sliding top plate of the rail function part, a magnetic guide plate of the rail function part, a rail panel longitudinal beam web plate and pi-shaped steel, wherein the upper end of the magnetic guide plate of the rail function part is connected with the transverse outer side end of the sliding top plate of the rail function part, the lower end of the rail panel longitudinal beam web plate is aligned and fixed with the transverse center of the pi-shaped steel, and the upper end of the rail panel longitudinal beam web plate is connected with the lower edge of the sliding top plate of the rail function part.
Furthermore, the transverse two ends of the top plate of the track panel cross beam are welded with the inner side of the sliding top plate of the track functional part, the transverse two ends of the bottom plate of the track panel cross beam are welded with the inner side surface of the pi-shaped steel, and the transverse two ends of the web plate of the track panel cross beam are welded with the inner side of the web plate of the track panel longitudinal beam.
Furthermore, a stiffening plate is arranged between the magnetic guide plate of the track functional part and the web plate of the track panel longitudinal beam, and the periphery of the stiffening plate is welded with the sliding top plate of the track functional part, the magnetic guide plate of the track functional part, the web plate of the track panel longitudinal beam and the pi-shaped steel respectively.
Furthermore, a horizontal supporting plate is arranged between the magnetic guide plate of the track functional part and the pi-shaped steel.
Further, horizontal fagging sets up one along longeron direction certain distance at a distance, and the cavity between two adjacent horizontal faggings aligns with the anchor bolt of iron core.
Further, the structure also comprises a stator core which is fixed below the pi-shaped steel through the anchor bolt of the stator core.
Further, the structure also comprises a long stator coil which is arranged in the clamping groove of the stator core.
Further, the fastener system comprises an anchoring screw rod, a double-layer nut, a damping base plate, a height-adjusting base plate and an embedded steel plate of the fastener system; wherein,
the height-adjusting base plate is arranged between the track panel cross beam bottom plate and the embedded steel plate so as to replace plates with different thicknesses to adjust the height of the longitudinal and transverse beam type track panel;
the shock absorption base plate is arranged between the double-layer nut and the track panel cross beam bottom plate so as to reduce the vibration of the longitudinal and transverse beam type track panel structure.
Further, the double-layer nut comprises a layer of fastening nut and a layer of anti-loosening nut.
Furthermore, an oblong hole is formed in the bottom plate of the rail panel cross beam, the long axis direction of the oblong hole is consistent with the direction of the bridge or the line, the length of the oblong hole in the short axis direction is slightly larger than the diameter of the anchoring screw of the fastener system, and the length of the long axis direction is determined according to the maximum moving amount of the longitudinal and transverse beam type rail panel on the bridge.
Furthermore, the rail bearing platforms are arranged in a pair at intervals along the longitudinal direction, and the center positions of the rail bearing platforms are superposed with the center positions of the anchoring screw rods of the fastener system and are in one-to-one correspondence.
Further, the top plate of the rail bearing platform inclines at a certain angle, and the angle is determined according to the line curve superelevation.
Further, the top of the concrete beam is set to be a plane inclined at a certain angle according to the curved superelevation.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
1. according to the high-speed magnetic levitation track and bridge beam part structure, the track structure and the bridge structure are completely separated, the track structure adopts the longitudinal and transverse beam type track panel which is fixedly arranged on the track bearing platform at the top of the bridge through the fastener system, the precision positioning of the track in all directions can be realized through the post-poured track bearing platform, and a series of problems of complex structure, high requirement on manufacturing precision, complex construction process and the like of the traditional high-speed magnetic levitation track and bridge are solved.
2. According to the high-speed magnetic levitation track and bridge beam part structure, the longitudinal and transverse beam type track panels are laid after the construction of the bridge structure is finished, the manufacturing precision of the bridge structure can be reduced on the premise that the manufacturing and installation precision of the track structure is met, and the weight and the volume of the track structure during fine machining are greatly reduced, so that the construction cost can be reduced.
3. According to the high-speed magnetic levitation track and bridge beam part structure, when the bridge is subjected to uneven settlement and concrete shrinkage creep deformation, the track surface elevation can be conveniently adjusted by replacing the height-adjusting base plate of the fastener system, and meanwhile, the fastener system enables the track functional part to be well adapted to the shrinkage deformation of the bridge.
4. According to the high-speed magnetic suspension track and bridge girder part structure, the stator core is fixed below the pi-shaped steel through the anchor bolt of the stator core, and the long stator coil is installed in the clamping groove of the stator core, so that an electrified suspension electromagnet on a suspension frame of a high-speed magnetic suspension train and the long stator coil on the track are attracted to each other conveniently, a suspension force is provided for the train, the train is upwards attracted, and a stable suspension gap is ensured by controlling suspension excitation current.
5. According to the high-speed magnetic levitation track and bridge beam part structure, the longitudinal beam comprises the magnetic guide plate of the track functional part, and the magnetic guide plate of the track functional part interacts with the guide plate on the side face of the track to provide a guide force, so that a certain lateral distance is kept between a vehicle body and the track, and non-contact guide in the horizontal direction is realized.
6. According to the high-speed magnetic levitation track and bridge girder part structure, the length of a section of the longitudinal and transverse girder type track panel is determined by comprehensively considering the factors such as the modulus of a stator core, the length of a bridge, the convenience of transportation and erection and the like, so that the manufacturing and construction difficulties of the high-speed magnetic levitation track and bridge structure are reduced, and the manufacturing precision and the construction efficiency are improved.
7. According to the high-speed magnetic levitation track and bridge beam part structure, the cross beam comprises the track panel cross beam top plate, the track panel cross beam bottom plate and the track panel cross beam web plate which are welded into the I-shaped cross section, the H-shaped cross section, the herringbone cross section or the box-shaped cross section, the longitudinal and transverse beam type track panels with different structural forms can be flexibly selected according to the requirements of a high-speed magnetic levitation line, and the manufacturing precision and flexibility of the high-speed magnetic levitation track and bridge structure are greatly improved.
8. According to the high-speed magnetic levitation track and bridge beam part structure, when the plane of the bridge is positioned on the curve and is provided with the curve superelevation, the top plate of the track bearing platform can be inclined by a certain angle or the track beam can be integrally rotated by a certain angle, so that the high-speed magnetic levitation track and bridge beam part structure is suitable for the curve superelevation of different lines.
Drawings
Fig. 1 is a structural form of a track beam in which a bridge and a track functional part of high-speed magnetic levitation track traffic are integrated into a whole in the prior art, wherein fig. 1(a) is a structure without a cross slope, and fig. 1(b) is a structure with a cross slope;
FIG. 2 is a cross-sectional view of the high-speed magnetic levitation track with the cross-beam track panel and the bridge plane of the bridge beam structure of the present invention on a straight line;
FIG. 3 is a cross-sectional view of the high-speed magnetic levitation track with the cross-beam track panel and the bridge beam structure with the track-supporting platform having the inclined top plate and the superelevation of the track surface according to the embodiment of the present invention;
FIG. 4 is a cross-sectional view of the high-speed magnetic levitation track with the cross-beam track panel and the bridge beam structure of the present invention when the track beam is rotated integrally by a certain angle to set the superelevation;
FIG. 5 is a schematic view of a spatial three-dimensional structure of a high-speed magnetic levitation track comprising a cross-beam track panel and a cross-beam track panel of a bridge beam structure according to an embodiment of the present invention (only a linear state is shown, and when a circuit plane is located on a curve, a track functional part area is manufactured according to a curve line shape);
FIG. 6 is a top view of FIG. 5 taken along section 1-1;
FIG. 7 is a schematic cross-sectional view taken along section 2-2 of FIG. 5;
FIG. 8 is a schematic cross-sectional view taken along section 3-3 of FIG. 5;
FIG. 9 is a schematic cross-sectional view taken along section 4-4 of FIG. 4;
FIG. 10 is a schematic cross-sectional view taken along section 5-5 of FIG. 4;
FIG. 11 is a schematic cross-sectional view taken along section 5-5 in FIG. 7, when the I-section steel member formed of parts 4, 5 and 6 is made of hot rolled section steel;
FIG. 12 is a cross-sectional view of the rail panel beam as it is made in a cross-sectional chevron shape;
FIG. 13 is a cross-sectional view of the track panel beam as it is formed into a box section;
FIG. 14 is a view showing the anchoring position of the cross member to the rail supporting platform when the cross member of the track panel is formed into a cross section of a herringbone shape;
fig. 15 is a configuration of the cross member and rail bearing table anchoring position when the track panel cross member is made into a box section.
In all the figures, the same reference numerals denote the same features, in particular: the method comprises the following steps of 1-a concrete beam, 2-a rail bearing table, 3-a fastener system (comprising parts 301-305), 4-a track panel beam top plate, 5-a track panel beam bottom plate, 6-a track panel beam web plate, 7-a sliding top plate of a track function piece (also serving as a track panel longitudinal beam top plate), 8-a magnetic guide plate of the track function piece, 9-a track panel longitudinal beam web plate, 10-pi-shaped steel (also serving as a track panel longitudinal beam bottom plate), 11-a stator core, 12-a stiffening plate, 13-a horizontal supporting plate, 14-an anchoring bolt of the stator core and 15-a long stator coil;
301-anchoring screw of fastener system, 302-double-layer nut (one layer of fastening and one layer of anti-loosening), 303-shock absorption backing plate, 304-heightening backing plate and 305-embedded steel plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 2 to 4, an embodiment of the present invention provides a longitudinal and transverse beam type track panel, which includes two longitudinal beams arranged along a line direction and a plurality of transverse beams perpendicular to the line direction. The longitudinal beam comprises steel members such as a sliding top plate 7 (which is also used as a track panel longitudinal beam top plate) of a track functional part, a magnetic guide plate 8 of the track functional part, a track panel longitudinal beam web plate 9, pi-shaped steel 10 (which is also used as a track panel longitudinal beam bottom plate), a stiffening plate 12 between a part 8 and a part 9, a horizontal supporting plate 13 between the part 8 and the part 10 and the like; the cross beam comprises a track panel cross beam top plate 4, a track panel cross beam bottom plate 5 and a track panel cross beam web 6, and the three are welded into an I-shaped cross section steel cross beam. The magnetic guide plate 8 of the track functional part interacts with the guide plate on the side surface of the track to provide a guide force, so that a certain lateral distance is kept between the vehicle body and the track, and non-contact guide in the horizontal direction is realized.
Furthermore, the cross beams with the I-shaped cross sections are arranged at certain intervals along the longitudinal direction of the bridge, and the longitudinal interval between every two adjacent cross beams is determined according to the modulus of the stator core and the stress requirement of the longitudinal beam structure. The linear shape of the longitudinal beams is consistent with that of the line, the linear shape or the curve is made according to the line shape, and the transverse distance between the two longitudinal beams is determined according to the requirements of the high-speed maglev train. The transverse two ends of the track panel beam top plate 4 are welded with the inner side of the sliding top plate 7 of the track functional part, the transverse two ends of the track panel beam bottom plate 5 are welded with the inner side surface of the pi-shaped steel 10, and the transverse two ends of the track panel beam web 6 are welded with the inner side of the track panel longitudinal beam web 9.
As shown in fig. 2 to 4, the transverse outer end of the sliding top plate 7 of the rail functional member is welded to the upper end of the magnetic guide plate 8 of the rail functional member to form a 90 ° break angle, the lower end of the web 9 of the track panel longitudinal beam is aligned to and welded to the transverse center of the pi-shaped steel 10, the upper end of the web 9 of the track panel longitudinal beam is welded to the lower edge of the sliding top plate 7 of the rail functional member, the peripheries of the stiffening plate 12 between the magnetic guide plate 8 of the rail functional member and the web 9 of the track panel longitudinal beam are welded to the sliding top plate 7 of the rail functional member, the magnetic guide plate 8 of the rail functional member, the web 9 of the track panel longitudinal beam and the pi-shaped steel 10, respectively, the horizontal support plate 13 between the magnetic guide plate 8 of the rail functional member and the pi-shaped steel 10 is a small steel plate, and in order to facilitate the construction operation of the anchor bolt 14 of the stator core, the horizontal support plate 13 between the magnetic guide plate 8 of the rail The distance sets up one, and the cavity between two adjacent horizontal bracing boards 13 aligns with the anchor bolt 14 of iron core for the construction operation of the anchor bolt 14 of stator core.
As shown in fig. 2 to 4, the length of a section of longitudinal and transverse beam type track panel is determined by comprehensively considering factors such as the modulus of a stator core, the length of a bridge, the convenience of transportation and erection and the like, so that the difficulty in manufacturing and constructing the high-speed magnetic levitation track and the bridge structure is reduced, and the manufacturing precision and the construction efficiency are improved. According to the high-speed magnetic levitation track and bridge beam part structure, the longitudinal and transverse beam type track panels are laid after the construction of the bridge structure is finished, the manufacturing precision of the bridge structure can be reduced on the premise that the manufacturing and installation precision of the track structure is met, and the weight and the volume of the track structure during fine machining are greatly reduced, so that the construction cost can be reduced.
As shown in fig. 5 to 7, an embodiment of the present invention provides a high-speed magnetic levitation track and a bridge beam structure including a vertical and horizontal beam-type track panel, which are used in a bridge and a track structure in a high-speed magnetic levitation transportation engineering. The system comprises a concrete beam 1, a rail bearing platform 2 is arranged on the top of the concrete beam 1, and a longitudinal and transverse beam type rail row is installed on the rail bearing platform 2 through a fastener system 3. According to the high-speed magnetic levitation track and bridge beam part structure, the track structure and the bridge structure are completely separated, the track structure adopts the longitudinal and transverse beam type track panel which is fixedly arranged on the track bearing platform at the top of the bridge through the fastener system, the precision positioning of the track in all directions can be realized through the post-poured track bearing platform, and the problems of complex structure, high requirement on manufacturing precision, complex construction process and the like of the traditional high-speed magnetic levitation track and bridge structure are solved.
As shown in fig. 8, the rail bearing platforms 2 are arranged in pairs at regular intervals along the longitudinal direction, and the central positions of the rail bearing platforms 2 coincide with the central positions of the anchor screws of the fastener system 3 and correspond to each other one by one.
As shown in fig. 9, 14 and 15, the fastener system 3 includes an anchor screw 301, a double-layer nut 302 (one-layer fastening and one-layer loosening prevention), a shock absorbing pad 303, a height adjusting pad 304 and a pre-buried steel plate 305. The height-adjusting base plate 304 is arranged between the track panel beam bottom plate 5 and the embedded steel plate 305, and the height of the track panel can be adjusted by replacing plates with different thicknesses so as to adjust the height of a track surface; the shock absorption base plate 303 is arranged between the double-layer nut and the track panel beam bottom plate 5, and can be subdivided into a plurality of shock absorption plate parts, so that the shock absorption base plate mainly plays a role in reducing the vibration of the track panel structure. According to the high-speed magnetic levitation track and bridge beam part structure, when the bridge is subjected to uneven settlement and concrete shrinkage creep deformation, the track surface elevation can be conveniently adjusted by replacing the height-adjusting base plate of the fastener system, and meanwhile, the fastener system enables the track functional part to be well adapted to the shrinkage deformation of the bridge.
In addition, slotted holes are formed in the track panel beam bottom plate 5, and the anchoring screw rods 301 of all the fastener systems 3 penetrate through the slotted holes formed in the track panel beam bottom plate 5 to fix the longitudinal and transverse beam type track panel on the track bearing platform 2.
As shown in fig. 5, the stator core 11 is fixed below the pi-shaped steel 10 by the anchor bolt 14 of the stator core, and the long stator coil 15 is installed in the slot of the stator core 11. According to the high-speed magnetic suspension track and bridge girder part structure, the stator core is fixed below the pi-shaped steel through the anchor bolt of the stator core, and the long stator coil is installed in the clamping groove of the stator core, so that an electrified suspension electromagnet on a suspension frame of a high-speed magnetic suspension train and the long stator coil on the track are attracted to each other conveniently, a suspension force is provided for the train, the train is upwards attracted, and a stable suspension gap is ensured by controlling suspension excitation current.
Preferably, as shown in fig. 6, when the plane of the bridge is located on the curve and the curve superelevation is set, the top plate of the rail bearing platform 2 may be inclined by a certain angle, and the angle is determined according to the curve superelevation of the line, so as to adapt to the curve superelevation of different lines.
Preferably, as shown in fig. 7, when the plane of the bridge is located on the curve and the curve superelevation is set, the plane may also be implemented in a manner that the track beam integrally rotates by a certain angle, and specifically, the top of the concrete beam 1 is set to be a plane inclined by a certain angle according to the curve, so as to adapt to the curve superelevation of different lines.
As shown in fig. 4, a long circular hole is formed in the bottom plate 5 of the track panel cross beam, the long axis direction of the long circular hole is consistent with the direction of the bridge or the line, the length of the long circular hole in the short axis direction is slightly larger than the diameter of the anchoring screw of the fastener system, and the length of the long circular hole in the long axis direction is determined by calculation according to the maximum moving amount of the track panel on the bridge.
Preferably, as shown in fig. 10, the track panel beam top plate 4, the track panel beam bottom plate 5 and the track panel beam web 6 are welded into an i-shaped cross-section steel beam.
Preferably, as shown in fig. 11, the i-shaped cross-section steel beam can be formed by welding three steel plates, namely a track panel beam top plate 4, a track panel beam bottom plate 5 and a track panel beam web 6, and can also be formed by hot rolling finished H-shaped steel.
Preferably, as shown in fig. 12 and 13, the cross beams of the track panel can be not only made into an i-shaped cross section, but also made into a herringbone cross section (as shown in fig. 12) or a box-shaped cross section (as shown in fig. 13) when the longitudinal distance between the adjacent cross beams is larger and the stress of a single cross beam is larger, and the corresponding anchoring positions of the cross beams and the track bearing platform are configured as shown in fig. 14 and 15.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (13)
1. The utility model provides a high-speed magnetic levitation track and bridge beam portion structure that contains beam type section of track that moves about freely and quickly, includes concrete beam (1) and locates rail bearing platform (2) at this concrete beam (1) top, its characterized in that, this structure still includes:
the longitudinal and transverse beam type track panel comprises two longitudinal beams arranged along the line direction and a plurality of transverse beams arranged perpendicular to the line direction, and is fixedly installed on the rail bearing platform (2) through a fastener system (3), and the height of the longitudinal and transverse beam type track panel is adjusted through the fastener system (3) so as to adjust the height of a track surface;
the cross beam comprises a track panel cross beam top plate (4), a track panel cross beam bottom plate (5) and a track panel cross beam web plate (6), and the three form a steel cross beam with an I-shaped cross section, an H-shaped cross section, an inverted V-shaped cross section or a box-shaped cross section;
the rail row longitudinal beam comprises a sliding top plate (7) of the rail function part, a magnetic guide plate (8) of the rail function part, a rail row longitudinal beam web plate (9) and pi-shaped steel (10), wherein the upper end of the magnetic guide plate (8) of the rail function part is connected with the transverse outer end of the sliding top plate (7) of the rail function part, the lower end of the rail row longitudinal beam web plate (9) is aligned and fixed with the transverse center of the pi-shaped steel (10), and the upper end of the rail row longitudinal beam web plate (9) is connected with the lower edge of the sliding top plate (7) of the rail function part.
2. The high-speed magnetic levitation track and bridge beam structure comprising the longitudinal and transverse beam type track panel is characterized in that the two transverse ends of the track panel beam top plate (4) are welded with the inner side of the sliding top plate (4) of the track functional part, the two transverse ends of the track panel beam bottom plate (5) are welded with the inner side of the pi-shaped steel (10), and the two transverse ends of the track panel beam web plate (6) are welded with the inner side of the track panel longitudinal beam web plate (9).
3. The high-speed magnetic levitation track and bridge beam structure comprising the longitudinal and transverse beam type track panel as claimed in claim 1 or 2, wherein a stiffening plate (12) is arranged between the magnetic guide plate (8) of the track functional member and the longitudinal beam web (9) of the track panel, and the periphery of the stiffening plate (12) is welded with the sliding top plate (7) of the track functional member, the magnetic guide plate (8) of the track functional member, the longitudinal beam web (9) of the track panel and the pi-shaped steel (10) respectively.
4. A high speed magnetic levitation track and bridge beam structure comprising a cross beam track section as claimed in any one of claims 1-3 wherein a horizontal bracing plate (13) is provided between the magnetic guiding plate (8) of the track function member and the pi-shaped steel (10).
5. A high speed magnetic levitation track and bridge beam structure comprising a cross beam section as claimed in any one of claims 1-4 wherein the horizontal support plates (13) are placed at a distance along the longitudinal beam direction and the hollow space between two adjacent horizontal support plates (13) is aligned with the anchor bolt (14) of the iron core.
6. A high speed magnetic levitation track and bridge girder section structure comprising a cross beam section according to any one of claims 1-5, wherein the structure further comprises a stator core (11) fixed under the pi-shaped steel (10) by means of the anchor bolts (14) passing through the stator core.
7. A high speed magnetic levitation track and bridge girder section structure comprising a crossbar beam section according to any one of claims 1-6, further comprising long stator coils (15) disposed in slots of the stator core (11).
8. The high-speed magnetic levitation track and bridge beam structure comprising the cross beam type track panel and the bridge beam structure are characterized in that the fastener system (3) comprises an anchoring screw (301) of the fastener system, a double-layer nut (302), a shock absorption base plate (303), an heightening base plate (304) and an embedded steel plate (305); wherein,
the height-adjusting base plate (304) is arranged between the track panel beam bottom plate (5) and the embedded steel plate (305) to replace plates with different thicknesses to adjust the height of the longitudinal and transverse beam type track panel;
and the damping shim plate (303) is arranged between the double-layer nut (302) and the track panel beam bottom plate (5) so as to reduce the vibration of the longitudinal and transverse beam type track panel structure.
9. A high speed magnetic levitation track and bridge beam structure comprising a crossbar beam section according to any one of claims 1-8, wherein the double-layer nut (302) comprises a layer of fastening nut and a layer of anti-loosening nut.
10. The high-speed magnetic levitation track and bridge beam structure comprising the cross-beam type track panel as claimed in any one of claims 1-9, wherein the bottom plate (5) of the track panel beam is provided with an oblong hole, the long axis direction of the oblong hole is consistent with the direction of the bridge or the track, the length of the oblong hole in the short axis direction is slightly larger than the diameter of the anchoring screw (301) of the fastener system, and the length of the long axis direction is determined according to the maximum movement amount of the cross-beam type track panel on the bridge.
11. A high speed magnetic levitation track and bridge beam structure comprising a cross beam section as claimed in any one of claims 1-10 wherein said track platforms (2) are arranged in pairs at regular intervals in the longitudinal direction and the central position of the track platform (2) coincides with the central position of the anchoring screw (301) of said fastener system and corresponds one to one.
12. A high speed magnetic levitation track and bridge beam structure comprising a cross beam track section as claimed in any one of claims 1-11 wherein the top plate of the track platform (2) is inclined at an angle determined by the superelevation of the track curve.
13. A high speed magnetic levitation track and bridge beam structure comprising a cross beam section as claimed in any one of claims 1-12 wherein the top of the concrete beam (1) is arranged as a plane inclined at an angle according to the curved superelevation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910233419.4A CN110029538B (en) | 2019-03-26 | High-speed magnetic levitation track and bridge beam part structure containing longitudinal and transverse beam type track panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910233419.4A CN110029538B (en) | 2019-03-26 | High-speed magnetic levitation track and bridge beam part structure containing longitudinal and transverse beam type track panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110029538A true CN110029538A (en) | 2019-07-19 |
| CN110029538B CN110029538B (en) | 2024-10-01 |
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| CN113378255A (en) * | 2020-02-25 | 2021-09-10 | 比亚迪股份有限公司 | Design method of curved guide rail beam and curved guide rail beam |
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