CN105421167B - 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 PDF

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Publication number
CN105421167B
CN105421167B CN201510952353.6A CN201510952353A CN105421167B CN 105421167 B CN105421167 B CN 105421167B CN 201510952353 A CN201510952353 A CN 201510952353A CN 105421167 B CN105421167 B CN 105421167B
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CN
China
Prior art keywords
box
bridge pier
embraced
horizontal gird
magnetic suspension
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Application number
CN201510952353.6A
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Chinese (zh)
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CN105421167A (en
Inventor
文望青
罗世东
耿杰
林文泉
赵志军
杨光
杜振华
崔阳华
陶志列
韩稼春
樊磊
葛建刚
胡俊
李超俊
李靖
梁会
刘阳明
赵涛
王存国
张宪国
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China Railway Siyuan Survey and Design Group Co Ltd
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China Railway Siyuan Survey and Design Group Co Ltd
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Priority to CN201510952353.6A priority Critical patent/CN105421167B/en
Publication of CN105421167A publication Critical patent/CN105421167A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B25/00Tracks for special kinds of railways
    • E01B25/30Tracks for magnetic suspension or levitation vehicles
    • E01B25/305Rails or supporting constructions
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00Bridges characterised by the cross-section of their bearing spanning structure
    • E01D2/04Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00Characteristics of the track and its foundations
    • E01B2204/09Ballastless systems
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges
    • E01D2101/20Concrete, stone or stone-like material
    • E01D2101/24Concrete
    • E01D2101/26Concrete reinforced
    • E01D2101/268Composite concrete-metal

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

Rail track traffic two-wire track girder is embraced in a kind of magnetic suspension
Technical field
The invention belongs to track girder field, rail track traffic two-wire track girder is embraced more particularly, to one kind.
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 It can so increase lateral stiffness, but it is suitable for application in this special bridge structure of magnetic levitation track girder, except it Beyond the higher factor of cost, steel truss structure is easily influenceed by expanding with heat and contract with cold, and the flatness to magnetic suspension rail is controlled There is large effect, be thus unfavorable for the smooth-ride of magnetic suspension train, meanwhile, complicated truss structure aesthetic property compared with Difference, does not meet the requirement of Modern City Traffic development.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, rail track traffic Double line rail is embraced the invention provides one kind Road beam, 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, this Outside, 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.
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 6 that passes on left of the right side of the left box beam 2 and the right box beam 3 is fixed together, In addition, the horizontal gird 6 is overall cylindrical and it is made up of concrete filled steel tube;Horizontal gird 6 does not use cast-in-site Concrete, but by the way of fill concrete in steel pipe, the connection side of fill concrete structure and both sides box beam in steel pipe Formula can use the connected mode of flange and bolt, it would however also be possible to employ the mode of welding.Its advantage is:Concrete has good in itself Good resistance to compression effect, when Concrete Filled is in steel pipe, can produce a fastening effect, anti-pressure ability is greatly enhanced.Meanwhile, Steel pipe can bear the effect of certain tension.In magnetic suspension rail building course, two box beams are prefabricated in advance, Ran Houtong Cross Bridge Erector install fixed due between two box beams be arrangeding in parallel space it is extremely limited, can be greatly using this programme It is convenient to install, 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, in addition, institute State that horizontal gird is integrally cylindrical and it is made up of concrete filled steel tube;
The connected mode of the horizontal gird and both sides box beam for flange and bolt connected mode, or welding connection side Formula;
The height of the horizontal gird is the 2/5~4/5 of the left box beam height, the horizontal gird, left box beam and right box beam Bottom face it is concordant;
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.
CN201510952353.6A 2015-12-17 2015-12-17 Rail track traffic two-wire track girder is embraced in a kind of magnetic suspension Active CN105421167B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510952353.6A CN105421167B (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
CN201510952353.6A CN105421167B (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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CN105421167A CN105421167A (en) 2016-03-23
CN105421167B true CN105421167B (en) 2017-09-22

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3837774C1 (en) * 1988-11-08 1990-05-31 Hochtief Ag Vorm. Gebr. Helfmann, 4300 Essen, De
CN101220576B (en) * 2008-01-31 2011-06-15 重庆钢铁(集团)有限责任公司 Arcuated steel rail beam and manufacturing method thereof
KR100956008B1 (en) * 2008-03-13 2010-05-04 한국철도기술연구원 Guide rail temporary clamping apparatus for installing track structure for magnetically levitated railway
CN102995561A (en) * 2011-09-19 2013-03-27 曹新恒 Universal bridge cast-in-place support
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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