CN105421166B - Rail track traffic two-wire track girder is embraced in a kind of magnetic suspension - Google Patents
Rail track traffic two-wire track girder is embraced in a kind of magnetic suspension Download PDFInfo
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- CN105421166B CN105421166B CN201510952194.XA CN201510952194A CN105421166B CN 105421166 B CN105421166 B CN 105421166B CN 201510952194 A CN201510952194 A CN 201510952194A CN 105421166 B CN105421166 B CN 105421166B
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- Prior art keywords
- box beam
- bridge pier
- embraced
- horizontal gird
- magnetic suspension
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Classifications
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- 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
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/09—Ballastless systems
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
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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
Rail track traffic two-wire track girder is embraced the invention discloses a kind of magnetic suspension, including the left box beam and right box beam being erected on bridge pier, left box beam is identical with the structure of right box beam, left box beam is arranged on the bridge pier by a left support abutment, right box beam is arranged on the bridge pier by a right support abutment, and left support abutment is identical with the structure of right support abutment；The horizontal gird that passes on left of the right side of left box beam and the right box beam is fixed together, and the horizontal gird is integrally cylindrical and it is made up of concrete filled steel tube；The horizontal gird is arranged at the surface of the bridge pier, and there is spacing between the bridge pier.The connection that left and right two box beams of the present invention pass through horizontal gird, its integral rigidity is greatly improved, more than 3 times of rigidity during to be separately provided left and right two panels single-beam, the lifting of the rigidity of structure, deformation when substantially reducing structure stress accordingly, meets magnetic and floats strict demand of the engineering for structural deformation.
Description
Technical field
The invention belongs to track girder field, rail track traffic two-wire track girder is embraced more particularly, to a kind of magnetic suspension.
Background technology
Embracing rail track traffic mainly includes magnetic levitation track traffic and cross-saddle single-track traffic, and the two is embraced using unique
The rail method of operation, the small bore single line box beam for meeting vehicle gauge is to embrace the most economical beam type of rail track traffic.
Reference picture 1, two box beams of two trajectories of traditional small bore are separate to be configured so that two trajectories
Lateral stiffness is poor；Each box beam is supported by two bearings respectively in addition, and bearing is arranged on bridge pier, the two bearings
Horizontal spacing it is big, cause the transverse width of bridge pier top cap also larger, tied which improves bridge pier top cap and pier bottom
The size of structure, it is about 35% to add bridge pier volume, the manufacturing cost of bridge pier has been significantly greatly increased, and make it that bridge pier is not also beautiful
See.
Reference picture 2 (a), Fig. 2 (b), Chinese Patent Application No. disclose one kind for 201410487247.0 Chinese patent
The double case rectangle steels of straddle-type monorail-mixed combined track beam structure, including：Two line steel being parallel to each other-mixed track girder, two
It is connected between steel-mixed track girder by crossbeam, the lower flat vertical connection of bottom；Wherein, the steel-mixed track girder includes：It is horizontal
The concrete long cube structure that section is the steel beam structure of box and cross section is rectangle, the concrete long cube structure is in
The top of the steel beam structure, and be connected with the steel beam structure by WELDING STUDS；It is in common two lines steel reinforced concrete combination track
Set crossbeam to increase lateral stiffness between beam, its crossbeam used is truss structure, though the crossbeam of this truss structure
Can so increase lateral stiffness, but it is suitable for application in this special bridge structure of magnetic levitation track girder, except its into
Beyond this higher factor, steel truss structure is easily influenceed by expanding with heat and contract with cold, and the flatness control to magnetic suspension rail is deposited
In large effect, thus it is unfavorable for the smooth-ride of magnetic suspension train, meanwhile, complicated truss structure aesthetic property is poor,
The requirement of Modern City Traffic development is not met.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, rail track traffic is embraced the invention provides a kind of magnetic suspension
Two-wire track girder, its lateral stiffness is high, and can effectively save manufacturing cost.
To achieve the above object, it is proposed, according to the invention, there is provided a kind of magnetic suspension embrace rail track traffic two-wire track girder, its
It is characterised by, including the left box beam and right box beam being erected on bridge pier, the left box beam is identical with the structure of right box beam, and institute
State left box beam to be arranged on the bridge pier by a left support abutment, the right box beam is arranged on the bridge pier by a right support abutment
On, the left support abutment is identical with the structure of right support abutment；
The horizontal gird that passes on left of the right side of the left box beam and the right box beam is fixed together；
The horizontal gird includes left crossbeam portion, pressure sensor and right crossbeam portion, the left crossbeam portion and right crossbeam portion
Formed by concrete filled steel tube, the pressure sensor is located between the left crossbeam portion and right crossbeam portion and the left crossbeam
Portion and right crossbeam portion are linked together by the pressure sensor, the pressure sensor be used for detect the left crossbeam portion and
The pressure that the right crossbeam portion is subject to；
The horizontal gird is arranged at the surface of the bridge pier, and there is spacing between the bridge pier.
Preferably, the left box beam and the right box beam are hollow structure.
Preferably, the horizontal gird, left box beam are concordant with the bottom face of right box beam.
Preferably, the height of the horizontal gird is the 2/5~4/5 of the left box beam height.
Preferably, the height of the bearing is the 1/11~1/9 of the horizontal gird height.
Preferably, the spacing between the crossbeam and the bridge pier is 0.3m~0.5m.
Preferably, the weight ratio of steel pipe and concrete is 0.2 in the horizontal gird：1~0.5：1.
Preferably, the tensile strength of the horizontal gird is more than 10MPa.
Preferably, the compression strength of the horizontal gird is more than 15MPa.
Preferably, the thickness of the horizontal gird is the 1/10~1/5 of its length.
In general, by the contemplated above technical scheme of the present invention compared with prior art, it can obtain down and show
Beneficial effect：
1) present invention is not simply to set crossbeam and is simply superimposed with reducing bearing, but according to magnetic-levitation
The characteristics of traffic, selection poured at pier location concrete filled steel tube formation crossbeam, it is ensured that profile it is attractive in appearance, in temperature change
In the case of influence to track form it is smaller.Left and right two box beams are obtained by the connection of horizontal gird, its integral rigidity
It is greatly improved, more than 3 times of rigidity during to be separately provided left and right two panels single-beam.
The lifting of the rigidity of structure, deformation when substantially reducing structure stress accordingly meets magnetic and floats engineering for structure
The strict demand of deformation.
2) present invention due in box beam position corresponding with bearing be provided with horizontal gird, the four of corresponding support box beam
Individual bearing can be reduced to two bearings, and bridge pier top cap lateral dimension can reduce 35%, and bridge pier overall dimensions are reduced under saving simultaneously
Portion's pile foundation stake is about 25%.Therefore, by optimizing the bearing plan of establishment, the manufacturing cost of bearing can be made to reduce 50%, subtracted
Lack bridge pier cost 35%, reduce bottom pile foundation cost 25%.
Brief description of the drawings
Fig. 1 is the structural representation that two single line box beams are independently arranged in the prior art；
Fig. 2 (a) and Fig. 2 (b) are the schematic diagrames connected in the prior art using truss；
Fig. 3 is the structural representation of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Not constituting conflict each other can just be mutually combined.
Rail track traffic two-wire track girder, including the left box beam 2 being erected on bridge pier 1 are embraced in a kind of reference picture 3, magnetic suspension
With right box beam 3, the left box beam 2 is identical with the structure of right box beam 3, and the left box beam 2 is arranged on by a left support abutment 4
On the bridge pier 1, the right box beam 3 is arranged on the bridge pier 1 by a right support abutment 5, the left support abutment 4 and right support abutment 5
Structure it is identical；
The horizontal gird that passes on left of the right side of the left box beam and the right box beam is fixed together；
The horizontal gird 6 includes left crossbeam portion 61, pressure sensor 62 and right crossbeam portion 63, the left He of crossbeam portion 61
Right crossbeam portion 63 is formed by concrete filled steel tube, the pressure sensor 62 be located at the left crossbeam portion 61 and right crossbeam portion 63 it
Between and the left crossbeam portion 61 and right crossbeam portion 63 linked together by the pressure sensor 62, the pressure sensor
62 are used to detect the pressure that the left crossbeam portion 61 and 63, the right crossbeam are subject to；
Horizontal gird 6 does not use cast-in-place concrete, but by the way of fill concrete in steel pipe, is filled out in steel pipe
The connected mode of flange and bolt can be used by filling concrete structure and the connected mode of both sides box beam, it would however also be possible to employ welding
Mode.Its advantage is：Concrete has good resistance to compression effect in itself, when Concrete Filled is in steel pipe, can produce one
Effect is fastened, anti-pressure ability is greatly enhanced.Meanwhile, steel pipe can bear the effect of certain tension.Built in magnetic suspension rail
During making, two box beams are prefabricated in advance, then install fixed due between two box beams be arrangeding in parallel by Bridge Erector
Space is extremely limited, using this programme, can greatly facilitate installation, while saving material, occupy little space, be suitably applied
Magnetic suspension rail environment.
The horizontal gird 6 is arranged at the surface of the bridge pier 1, and there is spacing between the bridge pier 1.
The present invention is not simply to set crossbeam and is simply superimposed with reducing bearing, but is handed over according to magnetic-levitation
The characteristics of logical, selection pours concrete filled steel tube formation crossbeam at the position of bridge pier 1, it is ensured that profile it is attractive in appearance, in temperature change
In the case of influence to track form it is smaller.Left and right two box beams are obtained by the connection of horizontal gird 6, its integral rigidity
It is greatly improved, more than 3 times of rigidity during to be separately provided left and right two panels single-beam.The lifting of the rigidity of structure, subtracts significantly accordingly
Deformation during small structure stress, meets magnetic and floats strict demand of the engineering for structural deformation.
The present invention due in box beam position corresponding with bearing be provided with horizontal gird 6, the four of corresponding support box beam
Individual bearing can be reduced to two bearings, and the top cap lateral dimension of bridge pier 1 can reduce 35%, and the overall dimensions of bridge pier 1 are reduced to be saved simultaneously
Bottom pile foundation stake is about 25%.Therefore, by optimizing the bearing plan of establishment, the manufacturing cost of bearing can be made to reduce 50%,
The cost 35% of bridge pier 1 is reduced, bottom pile foundation cost 25% is reduced.
Further, the left box beam 2 and the right box beam 3 are hollow structure, and the dead load of box beam is greatly reduced, made
Box beam makes, sets up all more convenient, and box beam holistic cost is saved more.
Further, the horizontal gird 6, left box beam 2 are concordant with the bottom face of right box beam 3, and left box beam 2 and right box beam 3 are led to
Cross horizontal gird 6 to link together, integral rigidity improves more than 3 times.Crossbeam is concordant with left and right box beam bottom, and its plastic simplicity is beautiful
See, the manufacture difficulty of box girder formwork can be reduced, save cost of manufacture.Meanwhile, crossbeam is concordant with left and right box beam bottom, it is to avoid section
It is mutated the structural stress mutation brought, it is to avoid box beam larger concentrated stress occurs with crossbeam connecting portion, makes structure stress
Uniformly, stress performance is further enhanced.
Further, the height of the horizontal gird 6 is the 2/5~4/5 of the height of left box beam 2, the height of the bearing
It is the 1/10 of the height of horizontal gird 6, the spacing between the crossbeam and the bridge pier 1 is 0.3m~0.5m, the level
The weight ratio of steel pipe and concrete is 0.2 in crossbeam 6：1~0.5：1, the thickness of the horizontal gird 6 be its length 1/10~
1/5, its structural volume is more relative to left and right two panels box beam very little, and especially beam thickness is relatively thin, conducts oneself with dignity smaller, subtracts accordingly
Lacked the dead load that left and right box beam is born, at the same also reduce bottom bridge pier, the load that pile foundation is born.In addition slim and graceful outer of crossbeam
Shape, adds daylighting effect under the bridge between two panels box beam, also enhances landscape effect.
Further, the tensile strength of the horizontal gird 6 is more than 10Mpa, and the compression strength of the horizontal gird 6 is more than
15Mpa, to adapt to the intensity requirement of track traffic.
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 invention etc., it all should include
Within protection scope of the present invention.
Claims (8)
1. rail track traffic two-wire track girder is embraced in a kind of magnetic suspension, it is characterised in that including the left box beam being erected on bridge pier
With right box beam, the left box beam is identical with the structure of right box beam, and four bearings of respective support box beam are reduced to two branch
Seat, i.e., described left box beam is arranged on the bridge pier by a left support abutment, and the right box beam is arranged on by a right support abutment
On the bridge pier, the left support abutment is identical with the structure of right support abutment；
The horizontal gird that passes on left of the right side of the left box beam and the right box beam is fixed together；
The connected mode of the horizontal gird and both sides box beam for flange and bolt connected mode, or welding connection side
Formula；
The horizontal gird, left box beam are concordant with the bottom face of right box beam, and the height of the horizontal gird is that the left box beam is high
The 2/5~4/5 of degree；
The horizontal gird include left crossbeam portion, pressure sensor and right crossbeam portion, the left crossbeam portion and right crossbeam portion by
Concrete filled steel tube is formed, the pressure sensor be located between the left crossbeam portion and right crossbeam portion and left crossbeam portion and
Right crossbeam portion is linked together by the pressure sensor, and the pressure sensor is used to detect the left crossbeam portion and described
The pressure that right crossbeam portion is subject to；
The horizontal gird is arranged at the surface of the bridge pier, and there is spacing between the bridge pier.
2. rail track traffic two-wire track girder is embraced in a kind of magnetic suspension according to claim 1, it is characterised in that the left side
Box beam and the right box beam are hollow structure.
3. rail track traffic two-wire track girder is embraced in a kind of magnetic suspension according to claim 1, it is characterised in that the branch
The height of seat is the 1/11~1/9 of the horizontal gird height.
4. rail track traffic two-wire track girder is embraced in a kind of magnetic suspension according to claim 1, it is characterised in that the horizontal stroke
Spacing between beam and the bridge pier is 0.3m~0.5m.
5. rail track traffic two-wire track girder is embraced in a kind of magnetic suspension according to claim 1, it is characterised in that the water
The weight ratio of steel pipe and concrete is 0.2 in flat crossbeam：1~0.5：1.
6. rail track traffic two-wire track girder is embraced in a kind of magnetic suspension according to claim 1, it is characterised in that the water
The tensile strength of flat crossbeam is more than 10MPa.
7. rail track traffic two-wire track girder is embraced in a kind of magnetic suspension according to claim 1, it is characterised in that the water
The compression strength of flat crossbeam is more than 15MPa.
8. rail track traffic two-wire track girder is embraced in a kind of magnetic suspension according to claim 1, it is characterised in that the water
The thickness of flat crossbeam is the 1/10~1/5 of its length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510952194.XA CN105421166B (en) | 2015-12-17 | 2015-12-17 | Rail track traffic two-wire track girder is embraced in a kind of magnetic suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510952194.XA CN105421166B (en) | 2015-12-17 | 2015-12-17 | Rail track traffic two-wire track girder is embraced in a kind of magnetic suspension |
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| Publication Number | Publication Date |
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| CN105421166A CN105421166A (en) | 2016-03-23 |
| CN105421166B true CN105421166B (en) | 2017-09-29 |
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| CN108203900A (en) * | 2018-02-09 | 2018-06-26 | 北京交通大学 | A kind of cross-saddle single-track traffic radial type two-orbit beam |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1861908A (en) * | 2006-06-13 | 2006-11-15 | 上海市隧道工程轨道交通设计研究院 | Installing method of magnetic suspension rail beam in tunnel |
| CN201077951Y (en) * | 2007-07-30 | 2008-06-25 | 上海市政工程设计研究总院 | Track traffic overhead viaduct interval structure |
| KR101004795B1 (en) * | 2008-04-14 | 2011-01-04 | (주)안풍건설 | Method for raising a bridge and the raising structure there of |
| CN201400850Y (en) * | 2009-04-15 | 2010-02-10 | 中铁二院工程集团有限责任公司 | Large-span steel girder for straddle single-track traffic system |
| CN203654157U (en) * | 2013-12-05 | 2014-06-18 | 深圳市市政设计研究院有限公司 | Track beam structure supported by double-layer rods |
| CN104912004B (en) * | 2015-06-25 | 2017-03-22 | 中铁第四勘察设计院集团有限公司 | Hold rail-type track transportation bridge evacuation maintenance platform |
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