CN110029540A - A kind of high speed Maglev double line box girder and track structure - Google Patents
A kind of high speed Maglev double line box girder and track structure Download PDFInfo
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- CN110029540A CN110029540A CN201910233433.4A CN201910233433A CN110029540A CN 110029540 A CN110029540 A CN 110029540A CN 201910233433 A CN201910233433 A CN 201910233433A CN 110029540 A CN110029540 A CN 110029540A
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- 239000011513 prestressed concrete Substances 0.000 claims abstract description 27
- 238000012423 maintenance Methods 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 61
- 229910052742 iron Inorganic materials 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 244000261422 Lysimachia clethroides Species 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 239000003351 stiffener Substances 0.000 claims description 7
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 210000001015 abdomen Anatomy 0.000 claims description 2
- 238000004873 anchoring Methods 0.000 claims description 2
- 238000005098 hot rolling Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 2
- 238000007667 floating Methods 0.000 abstract description 13
- 238000009434 installation Methods 0.000 abstract description 5
- 239000000725 suspension Substances 0.000 description 11
- 238000010276 construction Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000004567 concrete Substances 0.000 description 6
- 238000005339 levitation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of high speed Maglev double line box girder and track structures, including prestressed concrete double-line full span box (1), its top is symmetrically arranged with support rail beam (16), is equipped with track (2) at the top of the support rail beam (16)；The beam type section of track in length and breadth is installed on the track (2) by fastener system (3), two stringers including being arranged along line direction and several crossbeams perpendicular to line direction, and the linear and route of the stringer is linear consistent.Double line box girder and track structure of the invention, the big box beam upper berth frame rail in the whole hole of two-wire row, the section of track be in length and breadth girder structure form, realize that section of track elevation during high-speed magnetic floating carries out easily adjusting height above rail surface, operation maintenance when the section of track spreads frame, section of track installation as wheel rail high speed railway can also easily adjust by fastener, bridge floor is equipped with and easily overhauls and fire escape, track structure can realize independently of bridge structure and on bridge floor mechanization laying.
Description
Technical field
The invention belongs to magnetic levitation track technical field of transportation, more particularly, to a kind of high speed Maglev double line box girder
With track structure.
Background technique
Magnetic suspension traffic system is a kind of new terrestrial timetable planning, is with traditional wheel track traffic system significant difference
It is suspended in car body above track by suspending power, running part is not contacted with track.It is pushed away by what line inductance electromotor generated
It moves ahead in orbit into power.Often lead the long stator line on the levitating electromagnet and track charged on the suspension rack of high-speed maglev train
Circle attracts each other, and provides suspending power for train, and train is picked up upwards, and stable to guarantee by control suspension exciting current
Levitation gap.Levitation gap general control between electromagnet and track is in 8~12mm.
The guiding electromagnet charged on suspension rack and the guide plate of track side surfaces interact, and provide guiding force, make car body
Certain lateral distance is kept between track, realizes contactless guiding in the horizontal direction.The driving of high-speed maglev train is adopted
With off-board power device -- long stator synchronous linear motor (LSM), vehicle suspension frame lower part are equipped with levitating electromagnet coil, rail
Long stator coil is installed on road, when the long stator coil offer three-phase FM amplitude modulation electric power of line direction arrangement along the line, by
It is pushed and is advanced in electromagnetic induction effect train, to realize the traction and braking of suspended state Train Entirely contactless.
Often lead the track beam structure form that high speed Maglev is integrated using bridge and track function part, track function
Part is mounted on two cantilever ends formation track girder (as shown in Figure 1) of the beam structure top plate of bridge, also has track function
Slide top plate, magnetic guide plate and the stator core of part are directly embedded in the structure type that track girder is formed in beams of concrete,
It but is all the structural system that track function part and bridge beam structure are combined into one after all.
Currently, there are mainly two types of forms for high speed Maglev two-wire bridge, one is juxtaposition formula single-line railway beams -- by two
Piece single-line railway beam is directly supported on bridge pier (as shown in Figure 2), does not have any lateral connection knot between two panels single-line railway beam
Structure is usually used in small span standards simply supported beam；Another is to set up Simple Rail Bearer again (as schemed at the top of whole hole double line box girder
Shown in 3), the bridge structure for middle span.Both high speed Maglev two-wire bridges exist following insufficient:
(1) two cantilever ends that track function part is mounted on the beam structure top plate of bridge form the structure shape of track girder
Formula, high for the accuracy of manufacture requirement of track function part and bridge beam structure, not only track function part needs at finishing
Reason, and the prefab-form to bridge, concrete pouring quality, maintenance of precast beam etc. are proposed extremely harsh requirement,
Track girder complicated construction technique is caused, and cost that is prefabricated and setting up all greatly increases.
(2) linear in order to reach design height above rail surface and route during the installation of track function part, it needs whole by jack
Body adjusts entire track girder elevation to adjust height above rail surface, and the height above rail surface adjustment process in work progress is extremely complex.
(3) during high speed Maglev operation, because the reasons such as sedimentation, concrete shrinkage and creep cause rail level to change
Afterwards, other than muscle can adjust height above rail surface by the support of beam structure, then without other methods adjustment height above rail surface.And pass through
When support adjusts height above rail surface, needs to carry out height above rail surface adjustment again after jacking up entire track girder using jack, take very much
When it is laborious, the linear maintenance of track is very inconvenient.
(4) the high-speed magnetic floating two-wire bridge for using juxtaposition formula single-line railway beam, is not provided with access path and rescue on bridge
Fire escape, facility maintenance is inconvenient on bridge, when emergency occurs, without unimpeded convenient and fast fire escape.
(5) the high-speed magnetic floating two-wire bridge for using juxtaposition formula single-line railway beam cannot achieve Liang Shangyun beam trolley fortune beam simultaneously
The industrialization fabrication and erection construction method that is built a bridge using Bridge Erector, ground freight volume mode is by place, surrounding enviroment
It limits larger.
(6) using the high-speed magnetic floating two-wire bridge for setting up Simple Rail Bearer on whole hole double line box girder, on whole hole double line box girder
Simple Rail Bearer volume and be self-possessed it is larger, it is uneconomical, set up more difficult, the rail level accurate adjustment during construction and operation is difficult
Degree is very big.Since the deck-molding of the Simple Rail Bearer on whole hole double line box girder is very high, the setting of fire escape is more difficult on bridge.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provide a kind of high speed Maglev double line box girder with
Track structure, it is intended that the big box beam upper berth frame rail row in the whole hole of two-wire, section of track structure are full steel structure, section of track structure is vertical
Trabeation form, realize high-speed magnetic floating carried out as wheel rail high speed railway the section of track paving frame, the section of track installation when can be non-
Often easily section of track elevation can also easily be adjusted by fastener, bridge floor is equipped with during adjustment height above rail surface, operation maintenance
Easily maintenance and fire escape, track structure independently of bridge structure and can be realized on bridge floor mechanization laying, realize
Whole opening box girder the answering in high-speed magnetic floating conventional criteria span bridge's structure of Liang Shangyun beam trolley fortune Liang Bingyong girder erection by bridging machine
With.
To achieve the goals above, the present invention provides a kind of high speed Maglev double line box girder and track structure, using bridge
Beam and track structure unpack format, comprising:
Prestressed concrete double-line full span box, top are symmetrically arranged with support rail beam according to two-wire circuit center, should
Support rail back portion is equipped with track；
The beam type section of track in length and breadth, the beam type section of track is installed on the track by fastener system in length and breadth for this, and passes through the button
The elevation of the cross type section of track described in part system call interception adjusts height above rail surface in turn；
The section of track of beam type in length and breadth includes two stringers along line direction setting and several perpendicular to line direction
Crossbeam, the linear and route of the stringer is linear consistent, the lateral distance of two stringers depending on the limit of high-speed maglev train,
The crossbeam both ends are fixedly connected with the stringer respectively, to support the stringer.
Further, the stringer includes magnetic guide plate, the section of track for sliding top plate, track function part of track function part
Longitudinal-beam web plate and π fashioned iron；Wherein,
The track function part slides top plate as section of track stringer top plate, and π fashioned iron doubles as section of track stringer bottom plate, and described
The lower end of section of track longitudinal-beam web plate is aligned and is welded together with the transverse center of π fashioned iron, the upper end and track function part
It slides top plate lower edge to be welded together, collectively forms I Shaped Cross Section Steel Structure；
The magnetic guide plate upper end of the track function part and the side lateral out for sliding top plate of the track function part
Portion's connection, shape dog-ear in 90 °.
Further, the stringer further include:
Stiffener between the magnetic guide plate and section of track longitudinal-beam web plate of track function part, stiffener surrounding difference
It is welded with slide top plate, the magnetic guide plate of track function part, section of track longitudinal-beam web plate and the π fashioned iron of the track function part；
Horizontal fagging between the magnetic guide plate and π fashioned iron of track function part, the horizontal fagging one end and π fashioned iron
It is fixedly connected, the magnetic guide plate medial surface of the other end and track function part connects, and the plate that supports is along bridge stringer side
To not having one piece of setting spaced apart, the cavity and the anchor bolt alignment of iron core between two neighboring horizontal fagging.
Further, the crossbeam includes section of track crossbeam top plate, section of track crossbeam bottom plate, section of track cantilever diaphragm；
The section of track crossbeam top plate transverse ends and sliding for track function part are welded on the inside of top plate, section of track crossbeam bottom plate
Transverse ends and π fashioned iron medial surface weld, and weld on the inside of the section of track cantilever diaphragm transverse ends and section of track longitudinal-beam web plate；
Wherein one end is connect the section of track cantilever diaphragm with section of track crossbeam top plate, and the other end and the section of track crossbeam bottom plate connect
It connects, constitutes i shaped cross section gooseneck；Alternatively,
Section of track cantilever diaphragm both ends are respectively perpendicular to the section of track crossbeam top plate, section of track crossbeam bottom plate setting,
And hot rolling being integrally formed H profile steel crossbeam；Alternatively,
The section of track cantilever diaphragm is two and setting spaced apart, wherein the one of every section of track cantilever diaphragm
End is connect with section of track crossbeam top plate, and the other end is connect with the section of track crossbeam bottom plate, constitutes sub- shaped sections gooseneck；Alternatively,
The section of track cantilever diaphragm is two, and is respectively perpendicular set on the section of track crossbeam top plate, section of track crossbeam bottom plate
Both ends constitute box-type section gooseneck.
Further, the beam type section of track in length and breadth, further includes stator core and long stator coil, and the stator core passes through
The anchor bolt of stator core is fixed below π fashioned iron, and long stator coil is installed in the card slot of the stator core.
Further, the fastener system includes the anchorage screw of fastener system, the double-deck nut, shock-absorption backing plate, pad is turned up
Plate and pre-embedded steel slab；Wherein,
The height adjusting cushion plate is set between section of track crossbeam bottom plate and pre-embedded steel slab, to replace the plate adjustment using different-thickness
The elevation of the section of track of beam type in length and breadth；
Shock-absorption backing plate is set between the double-deck nut and section of track crossbeam bottom plate, including one layer of fastening nut and one layer of anti-loosening spiral shell
Mother, to reduce the vibration of the beam type section of track structure in length and breadth.
Further, setting is a pair of at a certain distance along longitudinal direction for the track, center and fastener system
Anchorage screw center is overlapped and corresponds.
Further, the top plate of the track is tilted a certain angle, which determines according to route curve superelevation.
Further, the top of the prestressed concrete double-line full span box is set as inclination centainly according to superrelation on curve
The plane of angle.
Further, the prestressed concrete double-line full span box is prestressed concrete single box single chamber section or single case
Dual chamber section, box section be rectangular section or inverted trapezoidal section skew web plate, and box beam top plate stretched out to both lateral sides to be formed it is outstanding
Arm plate.
Further, the support rail beam is reinforced concrete structure, lower end and the whole hole of prestressed concrete two-wire
The top plate of box beam connects；And
The support rail beam is longitudinal at interval of the lateral parting of certain distance setting along bridge, and it is double to be not involved in the prestressed concrete
The longitudinal stress of line whole opening box girder.
Further, maintenance is symmetrical arranged at the top of two cantilever slabs of the prestressed concrete double-line full span box to lead to
Road, the access path also serve as rescue fire escape, including safe barricade, intermediate straight wall, outside straight wall, shield, railing and cover board；
Wherein, the lower end and the whole hole of prestressed concrete two-wire of the safe barricade, intermediate straight wall and outside straight wall
The connection of box beam top plate；
The shield medial surface is connect with the lateral surface of outside straight wall；
The cover board is held on the safe barricade, intermediate straight wall, on the straight wall of outside, and the safe barricade, centre
Laying channel of the space that straight wall, outside straight wall are separated to form as forceful electric power and weak-current cable.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect:
1. double line box girder and track structure of the invention, the big box beam upper berth frame rail row in the whole hole of two-wire, section of track structure are all steel
Structure, section of track structure be in length and breadth girder structure form, realize high-speed magnetic floating is carried out as wheel rail high speed railway the section of track paving frame,
Section of track elevation can also be very convenient by fastener during the section of track can easily adjust height above rail surface, operation maintenance when installing
Ground adjustment, bridge floor, which are equipped with easily maintenance and fire escape, track structure, can realize independently of bridge structure and on bridge floor machine
Toolization is laid with, realizes the whole opening box girder of Liang Shangyun beam trolley fortune Liang Bingyong girder erection by bridging machine in high-speed magnetic floating conventional criteria span
Application in bridge structure.
2. all steel of the invention that mechanization is laid on whole opening box girder by prestressed concrete double-line full span box, support rail beam
Access path (as rescue fire escape) is combined together in structure section of track structure and bridge, forms completely new high-speed magnetic floating
Bridge and rail system realize track structure independently of bridge structure and can realize that mechanization is laid on bridge floor, occur tight
Passenger can realize emergency management and rescue by maintenance and fire escape when anxious situation.
3. the present invention is completely separable with bridge structure by track structure, track structure is gone again after the completion of bridge structure is constructed
It is laid with, the accuracy of manufacture of bridge structure, track structure can be reduced under the premise of meeting track structure manufacture and installation accuracy
Weight and volume when being finished also greatly reduces, so as to reduce project cost.
4. the rail of beam type in length and breadth row of the invention is fixed on the track at the top of bridge by fastener system, construct
The track that the positioning of the precision of the track all directions of period can pour after is realized and is accurately positioned well；
5. double line box girder and track structure of the invention, during operation, differential settlement, concrete shrinkage Xu occur for bridge
When deformation, height above rail surface adjustment, while fastener system can easily be carried out by the replacement of the height adjusting cushion plate of fastener system
System is but also track function part can be well adapted for the dilatation of bridge.
6. double line box girder and track structure of the invention, the beam type section of track includes two stringers along line direction setting in length and breadth
With several crossbeams perpendicular to line direction, stringer include track function part slide top plate, the magnetism of track function part is led
To plate, section of track longitudinal-beam web plate and π fashioned iron, crossbeam includes section of track crossbeam top plate, section of track crossbeam bottom plate, section of track cantilever diaphragm, and three
Person is welded into I-shaped cross-section, H-shaped section, sub- shaped sections or box-type section, can be flexible according to the demand of high speed magnetically suspended train line
The beam type section of track in length and breadth for selecting different structure form substantially increases high-speed magnetic suspension rails and the bridge structure accuracy of manufacture and flexibly
Property.
Detailed description of the invention
Fig. 1 is that high-speed magnetic suspension rails girder construction schematic cross-sectional view, Fig. 1 (a) show in the prior art for no horizontal slope cross section
It is intended to, Fig. 1 (b) is to have horizontal slope schematic cross-sectional view；
Fig. 2 is to be illustrated in the prior art using the high-speed magnetic floating two-wire bridge cross-sectional structure of juxtaposition formula single-line railway beam
Figure；
Fig. 3 is transversal using the high-speed magnetic floating two-wire bridge for setting up Simple Rail Bearer on whole hole double line box girder in the prior art
Face structural schematic diagram；
A kind of high speed Maglev double line box girder and track structure that Fig. 4 is one embodiment of the invention are in pier location
Cross-sectional view (when bridge plane is located on straight line)；
Fig. 5 is a kind of high speed Maglev double line box girder and the track structure position in bridge span of one embodiment of the invention
The cross-sectional view set (when bridge plane is located on straight line)；
Fig. 6 is that superrelation on curve is arranged in a kind of high speed Maglev double line box girder of one embodiment of the invention and track structure
When pier location cross-sectional view (bridge plane be located on curve be arranged superrelation on curve when)；
Fig. 7 is that superrelation on curve is arranged in a kind of high speed Maglev double line box girder of one embodiment of the invention and track structure
When in bridge span position cross-sectional view (bridge plane be located on curve be arranged superrelation on curve when)；
Fig. 8 is the a-quadrant drawing in Fig. 5.
Fig. 9 is a kind of section of track of the beam type in length and breadth space of high speed Maglev bridge deck track structure of one embodiment of the invention
(when only linear state, track plan being illustrated to be located at curve, track function part area is made D structure figure according to curve is linear
It makes)；
Figure 10 is the top view in Fig. 8 along 1-1 section part；
Figure 11 is the diagrammatic cross-section in Fig. 8 along 2-2 section part；
Figure 12 is the diagrammatic cross-section in Fig. 8 along 3-3 section part；
Figure 13 is the diagrammatic cross-section in Figure 11 along 4-4 section part；
Figure 14 is the diagrammatic cross-section in Figure 11 along 5-5 section part；
Along 5-5 section part in Figure 11 when Figure 15 uses hot-rolled steel section for the i shaped cross section steel member that part 4,5,6 forms
Diagrammatic cross-section；
Figure 16 is crossbeam cross-sectional view when section of track crossbeam is made into sub- shaped sections；
Figure 17 is crossbeam cross-sectional view when section of track crossbeam is made into box section；
Figure 18 is the schematic diagram of crossbeam and track anchorage point when section of track crossbeam is made into sub- shaped sections；
Figure 19 is the schematic diagram of the crossbeam and track anchorage point when section of track crossbeam is made into box section.
In all the appended drawings, same appended drawing reference indicates identical technical characteristic, specifically: 1- prestressed concrete is double
Line whole opening box girder, 2- track, 3- fastener system, 4- section of track crossbeam top plate, 5- section of track crossbeam bottom plate, 6- section of track cantilever diaphragm,
7- track function part to slide top plate, the magnetic guide plate of 8- track function part, 9- section of track longitudinal-beam web plate, 10- π fashioned iron, 11- fixed
Stiffener, 13- part 8 between sub- iron core, 12- part 8 and part 9 and the horizontal fagging between part 10,14- stator core
Anchor bolt, 15- long stator coil, 16- support rail beam, the safe barricade of 17-, straight wall among 18-, straight wall, 20- hide on the outside of 19-
Plate, 21- railing, 22- cover board, 23, the support of whole opening box girder.Anchorage screw, the 302- bilayer nut, 303- of 301- fastener system
Shock-absorption backing plate, 304- height adjusting cushion plate, 305- pre-embedded steel slab.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below that
Not constituting conflict between this can be combined with each other.
As shown in Fig. 4~Fig. 8, the top of prestressed concrete double-line full span box 1 is according to the center line position of two-wire circuit
Two support rail beams 16 of lateral arrangement are set, the top layout track 2 of support rail beam 16, the beam type steel construction section of track passes through fastener system in length and breadth
System 3 is mounted on track 2.Wherein, prestressed concrete double-line full span box 1 is cut using prestressed concrete single box single chamber
Face or single box double room section, rectangular section (straight web), which can be used, in box section can also be used inverted trapezoidal section (skew web plate), case
Back plate stretches out to form cantilever slab to both lateral sides.The deck-molding and top plate and bottom plate of box beam, web plate thickness according to structure stress,
Construction needs and deformation controlling standards are calculated and determined.Prestressed concrete double-line full span box 1 can be used for conventional criteria span letter
Strutbeam, continuous beam, simple support-continuous girder, it can also be used to the variable cross-section prestressed concrete continuous beam of large span.
As shown in Fig. 4~Fig. 8, support rail beam 16 uses reinforced concrete structure, lower end and the whole hole of prestressed concrete two-wire
The top plate of box beam 1 links together.Support rail beam 16 is longitudinal at interval of the lateral parting of certain distance setting along bridge, is not involved in pre- answer
The longitudinal stress of power concrete double-line full span box 1.
As shown in Fig. 9~Figure 11, the beam type section of track includes along two stringers of line direction setting and perpendicular to route in length and breadth
Several crossbeams in direction.Wherein, the linear and route of stringer is linear consistent, is in line or curve according to route is linear, and two
The lateral distance of a stringer is determined according to the requirement of high-speed maglev train.Stringer includes that track function part slides top plate 7, track
Magnetic guide plate 8, section of track longitudinal-beam web plate 9 and the π fashioned iron 10 of functor.Wherein, the top plate 7 that slides of track function part doubles as the section of track
Stringer top plate, π fashioned iron 10 double as section of track stringer bottom plate, and the lower end of section of track longitudinal-beam web plate 9 is aligned simultaneously with the transverse center of π fashioned iron 10
It being welded together, the upper end of section of track longitudinal-beam web plate 9 is welded together with 7 lower edge of top plate that slides of track function part,
Collectively form I Shaped Cross Section Steel Structure.Stringer is suspended in track function to the running track as magnetic suspension train, train
Part slides on top plate 7 and keeps stable levitation gap with it, meanwhile, the lateral outer side for sliding top plate 7 of track function part
End and the upper end of the magnetic guide plate 8 of track function part are welded together, shape dog-ear in 90 °, the magnetic of track function part
Property guide plate 8 and the guide plates of track side surfaces interact, guiding force is provided, makes to keep certain lateral between car body and track
Distance realizes contactless guiding in the horizontal direction.
Further, as shown in figure 8, stringer further includes the magnetic guide plate 8 and section of track stringer abdomen set on track function part
Stiffener 12 between plate 9, the surrounding of stiffener 12 respectively with the magnetism for sliding top plate 7, track function part of track function part
Guide plate 8, section of track longitudinal-beam web plate 9 and π fashioned iron 10 are welded together, and slide top plate 7 and rail with supporting track functor
The magnetic guide plate 8 of road functor guarantees that it has enough structural strengths and rigidity.
As shown in figure 8, stringer further includes the horizontal brace between the magnetic guide plate 8 and π fashioned iron 10 of track function part
Plate 13, horizontal 13 one end of fagging are fixedly connected with π fashioned iron 10,8 medial surface of magnetic guide plate of the other end and track function part
It connects, is supported to form strength to the magnetic guide plate 8 of track function part, guarantee that vertical position variation does not occur for it,
Ensure that the lateral distance between car body and track maintains to stablize, it is ensured that train traffic safety.In addition, in order to facilitate stator core
The constructing operation of anchor bolt 14, the horizontal fagging 13 between the magnetic guide plate 8 and π fashioned iron 10 of track function part are vertical along bridge
Beam direction does not have one piece of setting spaced apart, and the cavity between two neighboring horizontal fagging 13 is right with the anchor bolt 14 of iron core
Together, the constructing operation for the anchor bolt of stator core 14.
As shown in Fig. 8, Fig. 9 and Figure 13, crossbeam is to support the stringer, including section of track crossbeam top plate 4, section of track crossbeam bottom
Plate 5, section of track cantilever diaphragm 6, three are welded into I-shaped cross-section gooseneck.The I-shaped cross-section crossbeam along bridge it is longitudinal at interval of
One fixed spacing arranges one, and the longitudinal pitch of two neighboring crossbeam needs true according to stator core modulus and longitudinal beam structure stress
It is fixed.The transverse ends of section of track crossbeam top plate 4 are welded together with the inside for sliding top plate 7 of track function part, and the section of track is horizontal
The transverse ends of beam bottom plate 5 and the medial surface of π fashioned iron 10 are welded together, the transverse ends and rail of section of track cantilever diaphragm 6
The inside of row's longitudinal-beam web plate 9 is welded together.
As shown in figure 9, the length of one section of beam type high-speed magnetic floating steel construction section of track in length and breadth is long according to stator core modulus, bridge
Degree, transport and the combined factors such as the convenience of erection consider to determine, reduce high-speed magnetic suspension rails and manufacture and apply with bridge structure
Work is difficult, improves the accuracy of manufacture and construction efficiency.
As shown in Figure 13,18,19, fastener system 3 includes the anchorage screw 301 of fastener system, double-deck 302 (one layer of the nut
Fastening, one layer it is anti-loosening), shock-absorption backing plate 303, height adjusting cushion plate 304 and pre-embedded steel slab 305.Wherein, height adjusting cushion plate 304 is set to
Between section of track crossbeam bottom plate 5 and pre-embedded steel slab 305, the elevation for adjusting the section of track can be replaced using the plate of different-thickness and then adjusted
Whole height above rail surface；Shock-absorption backing plate 303 is set between the double-deck nut and section of track crossbeam bottom plate 5, can be sub-divided into several and be subtracted
Plate is shaken, the effect for reducing section of track structural vibration is primarily served.
As shown in figure 11, slotted hole, the long axis direction and bridge or line direction of slotted hole are opened up on section of track crossbeam bottom plate 5
Unanimously, the short-axis direction length of slotted hole should be more slightly larger than fastener system anchorage screw diameter, the long axis direction length root of slotted hole
It calculates and determines according to maximum amount of movement of the section of track on bridge.The anchorage screw 301 of all fastener systems 3 passes through section of track crossbeam bottom plate
The slotted hole opened up on 5 the beam type section of track will be fixed on track 2 in length and breadth.
As shown in figure 8, the section of track further includes stator core 11 and long stator coil 15, pass through the anchoring spiral shell of stator core
Bolt 14 is fixed on 10 lower section of π fashioned iron, and long stator coil 15 is installed in the card slot of stator core 11.High-speed magnetic floating rail of the invention
Road and bridge beam structure, stator core are fixed below π fashioned iron by the anchor bolt of stator core, long stator coil installation
In the card slot of stator core, convenient for the long stator on the levitating electromagnet and track that are charged on the suspension rack of high-speed maglev train
Coil attracts each other, and provides suspending power for train, and train is picked up upwards, and guarantees to stablize by control suspension exciting current
Levitation gap.
As shown in figure 12, setting is a pair of at a certain distance along longitudinal direction for track 2, the center of track 2 and fastener
The anchorage screw center of system 3 is overlapped and corresponds.
Preferably, it as shown in fig. 6, when bridge plane is located at setting superrelation on curve on curve, can use track 2
Top plate is tilted a certain angle, which determines according to route curve superelevation, to adapt to the superrelation on curve of different routes.
It preferably, can also be whole using track girder as shown in fig. 7, when bridge plane is located at setting superrelation on curve on curve
Form that body rotates by a certain angle realizes, specifically, what the top of beams of concrete 1 was set as being tilted a certain angle according to curve
Plane, to adapt to the superrelation on curve of different routes.
Preferably, as shown in figure 15, I-shaped cross-section gooseneck is in addition to using section of track crossbeam top plate 4, section of track crossbeam bottom plate
5, section of track cantilever diaphragm 6 can also be using the hot rolled H-shaped of finished product.
Preferably, as shown in Figure 16, Figure 17, the crossbeam of the section of track not can be made I-shaped cross-section singly, when adjacent beams
When the stress of larger, the single crossbeam of longitudinal pitch is larger, the crossbeam of the section of track can be made into sub- shaped sections (such as Figure 16) or
Box-type section (such as Figure 17), the construction of corresponding crossbeam and track anchorage point are as shown in Figure 18 and Figure 19.
As shown in Fig. 4~Fig. 8, maintenance is symmetrical arranged at the top of two cantilever slabs of prestressed concrete double-line full span box 1
Channel (as rescue fire escape), the access path include safe barricade 17, intermediate straight wall 18, outside straight wall 19, shield
20, railing 21 and cover board 22.Wherein, safe barricade 17, intermediate straight wall 18, the lower end of outside straight wall 19 and prestressed concrete are double
The top plate of line whole opening box girder 1 links together, and the medial surface of shield 20 and the lateral surface of outer lateral retaining wall link together, cover board 22
It is held on safe barricade 17, intermediate straight wall 18, on outside straight wall 19, safe barricade 17, intermediate straight wall 18, outside straight wall 19 divide
It can be used as the laying channel of forceful electric power and weak-current cable every the space of formation.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (12)
1. a kind of high speed Maglev double line box girder and track structure, using bridge and track structure unpack format, feature exists
In, comprising:
Prestressed concrete double-line full span box (1), top are symmetrically arranged with support rail beam (16) according to two-wire circuit center,
Track (2) are equipped at the top of the support rail beam (16)；
The beam type section of track in length and breadth, the beam type section of track is installed on the track (2) by fastener system (3) in length and breadth for this, and by being somebody's turn to do
Fastener system (3) adjusts the elevation of the cross type section of track and then adjusts height above rail surface；
The section of track of beam type in length and breadth include along two stringers of line direction setting and perpendicular to several crossbeams of line direction,
The linear and route of the stringer is linear consistent, and the lateral distance of two stringers is described depending on the limit of high-speed maglev train
Crossbeam both ends are fixedly connected with the stringer respectively, to support the stringer.
2. a kind of high speed Maglev double line box girder according to claim 1 and track structure, which is characterized in that described vertical
Beam includes that track function part slides top plate (7), the magnetic guide plate (8) of track function part, section of track longitudinal-beam web plate (9) and π type
Steel (10)；Wherein,
The track function part slides top plate (7) as section of track stringer top plate, and π fashioned iron (10) doubles as section of track stringer bottom plate, and
The lower end of the section of track longitudinal-beam web plate (9) is aligned and is welded together with the transverse center of π fashioned iron (10), the upper end and rail
Top plate (7) lower edge that slides of road functor is welded together, and collectively forms I Shaped Cross Section Steel Structure；
Magnetic guide plate (8) upper end of the track function part and the lateral outer side for sliding top plate (7) of the track function part
End connection, shape dog-ear in 90 °.
3. a kind of high speed Maglev double line box girder according to claim 1 or 2 and track structure, which is characterized in that institute
State stringer further include:
Stiffener (12) between the magnetic guide plate (8) and section of track longitudinal-beam web plate (9) of track function part, the stiffener
(12) surrounding respectively with magnetic guide plate (8), the section of track stringer for sliding top plate (7), track function part of the track function part
Web (9) and π fashioned iron (10) welding；
Horizontal fagging (13) between the magnetic guide plate (8) and π fashioned iron (10) of track function part, the horizontal fagging (13)
One end is fixedly connected with π fashioned iron (10), and magnetic guide plate (8) medial surface of the other end and track function part connects, described
It supports plate (13) and does not have one piece of setting spaced apart along bridge stringer direction, the cavity between two neighboring horizontal fagging (13)
It is aligned with the anchor bolt (14) of iron core.
4. a kind of high speed Maglev double line box girder according to any one of claim 1-3 and track structure, feature
It is, the crossbeam includes section of track crossbeam top plate (4), section of track crossbeam bottom plate (5), section of track cantilever diaphragm (6)；
Section of track crossbeam top plate (4) transverse ends and sliding for track function part are welded on the inside of top plate (7), section of track crossbeam bottom plate
(5) transverse ends and π fashioned iron (10) medial surface are welded, and section of track cantilever diaphragm (6) transverse ends and section of track stringer abdomen
Welding on the inside of plate (9)；
Wherein one end is connect the section of track cantilever diaphragm (6) with section of track crossbeam top plate (4), the other end and the section of track crossbeam bottom plate
(5) it connects, constitutes i shaped cross section gooseneck；Alternatively,
Section of track cantilever diaphragm (6) both ends are respectively perpendicular to the section of track crossbeam top plate (4), the section of track crossbeam bottom plate (5)
Setting, and hot rolling being integrally formed H profile steel crossbeam；Alternatively,
The section of track cantilever diaphragm (6) is two and setting spaced apart, and the every section of track cantilever diaphragm (6) is wherein
One end is connect with section of track crossbeam top plate (4), and the other end is connect with the section of track crossbeam bottom plate (5), and it is horizontal to constitute sub- shaped sections steel
Beam；Alternatively,
The section of track cantilever diaphragm (6) is two, and is respectively perpendicular set on the section of track crossbeam top plate (4), section of track crossbeam bottom plate
(5) both ends constitute box-type section gooseneck.
5. a kind of high speed Maglev double line box girder and track structure described in any one of -4 according to claim 1, feature
It is, the beam type section of track in length and breadth, further includes stator core (11) and long stator coil (15), the stator core (11) passes through
The anchor bolt (14) of stator core is fixed below π fashioned iron (10), and long stator coil (15) is installed on the stator core (11)
Card slot in.
6. a kind of high speed Maglev double line box girder according to any one of claims 1-5 and track structure, feature
Be, the fastener system (3) include the anchorage screw (301) of fastener system, the double-deck nut (302), shock-absorption backing plate (303),
Height adjusting cushion plate (304) and pre-embedded steel slab (305)；Wherein,
The height adjusting cushion plate (304) is set between section of track crossbeam bottom plate (5) and pre-embedded steel slab (305), uses different thickness with replacement
The elevation of the plate adjustment beam type section of track in length and breadth of degree；
Shock-absorption backing plate (303) is set between the double-deck nut (302) and section of track crossbeam bottom plate (5), including one layer of fastening nut and one
Layer Anti-loosening nut, to reduce the vibration of the beam type section of track structure in length and breadth.
7. a kind of high speed Maglev double line box girder according to claim 1 to 6 and track structure, feature
It is, setting is a pair of at a certain distance along longitudinal direction for the track (2), the anchoring spiral shell of center and fastener system (3)
Bar center is overlapped and corresponds.
8. a kind of high speed Maglev double line box girder and track structure described in any one of -7 according to claim 1, feature
It is, the top plate of the track (2) is tilted a certain angle, which determines according to route curve superelevation.
9. a kind of high speed Maglev double line box girder according to claim 1 to 8 and track structure, feature
It is, the top of the prestressed concrete double-line full span box (1) is set as being tilted a certain angle flat according to superrelation on curve
Face.
10. a kind of high speed Maglev double line box girder according to claim 1 to 9 and track structure, feature
Be, the prestressed concrete double-line full span box (1) be prestressed concrete single box single chamber section or single box double room section,
Box section is rectangular section or inverted trapezoidal section skew web plate, and box beam top plate stretches out to form cantilever slab to both lateral sides.
11. a kind of high speed Maglev double line box girder according to claim 1 to 10 and track structure, special
Sign is that the support rail beam (16) is reinforced concrete structure, lower end and the prestressed concrete double-line full span box (1)
Top plate connection；And
The support rail beam (16) is longitudinal at interval of the lateral parting of certain distance setting along bridge, and it is double to be not involved in the prestressed concrete
The longitudinal stress of line whole opening box girder (1).
12. a kind of high speed Maglev double line box girder and track structure described in any one of -11 according to claim 1, special
Sign is, access path, the maintenance are symmetrical arranged at the top of two cantilever slabs of the prestressed concrete double-line full span box (1)
Channel also serves as rescue fire escape, including safe barricade (17), intermediate straight wall (18), outside straight wall (19), shield (20), railing
(21) and cover board (22)；
Wherein, lower end and the prestressed concrete of the safe barricade (17), intermediate straight wall (18) and outside straight wall (19)
The connection of double-line full span box (1) top plate；
Shield (20) medial surface is connect with the lateral surface of outside straight wall (19)；
The cover board (22) is held on the safe barricade (17), intermediate straight wall (18), on outside straight wall (19), and the peace
The space that full barricade (17), intermediate straight wall (18), outside straight wall (19) are separated to form is logical as the laying of forceful electric power and weak-current cable
Road.
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| CN110920640A (en) * | 2019-12-20 | 2020-03-27 | 中国铁路设计集团有限公司 | Magnetic suspension vacuum pipeline internal structure |
| CN110965406A (en) * | 2019-11-25 | 2020-04-07 | 中铁宝桥集团有限公司 | Track is assembled to well low-speed magnetic levitation girder steel |
| CN111121151A (en) * | 2019-12-12 | 2020-05-08 | 国网浙江省电力有限公司嘉兴供电公司 | In-station air conditioning system for multi-station fusion |
| CN112757455A (en) * | 2020-04-08 | 2021-05-07 | 上海建工材料工程有限公司 | Prefabricating method for prefabricating high-precision high-speed magnetic suspension track beam slab |
| CN114293413A (en) * | 2021-12-03 | 2022-04-08 | 中铁第四勘察设计院集团有限公司 | High-speed magnetic suspension low-position line structure and construction method thereof |
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