CN105568789B - 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
CN105568789B
CN105568789B CN201510952988.6A CN201510952988A CN105568789B CN 105568789 B CN105568789 B CN 105568789B CN 201510952988 A CN201510952988 A CN 201510952988A CN 105568789 B CN105568789 B CN 105568789B
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China
Prior art keywords
box
bridge pier
embraced
crossbeam
magnetic suspension
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CN201510952988.6A
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Chinese (zh)
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CN105568789A (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 CN201510952988.6A priority Critical patent/CN105568789B/en
Publication of CN105568789A publication Critical patent/CN105568789A/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

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, the 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 the left support abutment is identical with the structure of right support abutment;The crossbeam that passes on left of the right side of left box beam and the right box beam is fixed together, and the cross section of the crossbeam is in I-shaped;The crossbeam 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 crossbeam, 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 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 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 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 left side of the left box beam is provided with the left wing plate stretched out obliquely upward, and the right side of the right box beam is provided with obliquely upward The right wing plate of stretching, and the left wing plate and right wing plate are symmetrical;
The crossbeam that passes on left of the right side of the left box beam and the right box beam is fixed together, in addition, institute The cross section for stating crossbeam is in I-shaped, and it is formed by cross section in penetration concrete in I-shaped box hat;
The crossbeam 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 crossbeam, left box beam are concordant with the bottom face of right box beam.
Preferably, the horizontal depth of beam 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 beam height.
Preferably, the spacing between the crossbeam and the bridge pier is 0.3m~0.5m.
Preferably, the weight ratio of box hat and concrete is 0.2 in the crossbeam:1~0.5:1.
Preferably, the tensile strength of the crossbeam is more than 10MPa.
Preferably, the compression strength of the crossbeam is more than 15MPa.
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, select to set I-shaped crossbeam at pier location, it is ensured that profile it is attractive in appearance, in the situation of temperature change Under influence to track form it is smaller.Left and right two box beams are greatly improved by the connection of crossbeam, its integral rigidity, 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 crossbeam, four branch of corresponding support box beam Seat can be reduced to two bearings, and bridge pier top cap lateral dimension can reduce 35%, and bridge pier overall dimensions are reduced saves bottom stake simultaneously Foundation pile is about 25%.Therefore, by optimizing the bearing plan of establishment, the manufacturing cost of bearing can be made to reduce 50%, reduced Bridge pier cost 35%, reduces 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 that the box beam with wing plate is arranged on the schematic diagram on bridge pier in the prior art;
Fig. 4 is the structural representation of the present invention;
Fig. 5 is the cross-sectional view of middle cross beam 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 side being erected on bridge pier 1 are embraced in reference picture 4, Fig. 5, a kind of magnetic suspension Box beam 2 and right box beam 3, the left box beam 2 are identical with the structure of right box beam 3, and the left box beam 2 passes through 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 the right side The structure of bearing 5 is identical;
The left side of the left box beam 2 is provided with the left wing plate 7 stretched out obliquely upward, and the right side of the right box beam 3 is provided with to oblique The right wing plate 8 that top is stretched out, and the left wing plate 7 and right wing plate 8 are symmetrical;
The crossbeam 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 cross section of the crossbeam 6 is in I-shaped, and it is formed by cross section in penetration concrete in I-shaped box hat;I-shaped horizontal stroke The periphery of beam 6 is using steel plate formation accommodating chamber, filling armored concrete in chamber, and the connected mode of itself and both sides box beam can be adopted With the connected mode of flange and bolt, it would however also be possible to employ the mode of welding.In magnetic suspension rail building course, two box beams It is prefabricated in advance, then installed and fixed by Bridge Erector, space is extremely limited between two box beams for be arrangeding in parallel.I-shaped knot The horizontal component of structure in the middle part of box beam side bottom and web with being fixedly connected, it is ensured that the rigidity in horizontal direction.I-shaped knot The vertical portion of structure is fixedly connected with box girder web, it is ensured that the rigidity in vertical direction.Employ less material, occupy compared with Small volume, results on horizontally and vertically rigidity higher.It is suitably applied magnetic suspension rail environment.
The crossbeam 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 sets crossbeam at the position of bridge pier 1, it is ensured that profile it is attractive in appearance, to track in the case of temperature change The influence of form is smaller.Left and right two box beams are by the connection of crossbeam, and its integral rigidity is greatly improved, and is individually to set More than 3 times of rigidity when putting left and right two panels single-beam.The lifting of the rigidity of structure, deformation when substantially reducing structure stress accordingly, Meet magnetic and float strict demand of the engineering for structural deformation.
The present invention due in box beam position corresponding with bearing be provided with crossbeam, four bearings of corresponding support box beam Two bearings can be reduced to, the top cap lateral dimension of bridge pier 1 can reduce 35%, and the overall dimensions of bridge pier 1 are reduced saves bottom stake simultaneously Foundation pile is about 25%.Therefore, by optimizing the bearing plan of establishment, the manufacturing cost of bearing can be made to reduce 50%, reduced The cost 35% of bridge pier 1, reduces bottom pile foundation cost 25%.
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 crossbeam 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 pass through horizontal stroke Beam 6 links together, and integral rigidity improves more than 3 times.Crossbeam is concordant with left and right box beam bottom, and its plastic simplicity is attractive in appearance, can subtract The manufacture difficulty of few box girder formwork, saves cost of manufacture.Meanwhile, crossbeam is concordant with left and right box beam bottom, it is to avoid abrupt change of cross-section band The structural stress mutation come, it is to avoid box beam larger concentrated stress occurs with crossbeam connecting portion, makes structure stress uniform, by Power performance is further enhanced.
Further, the height of the crossbeam 6 is the 2/5~4/5 of the height of left box beam 2, and the height of the bearing is institute State the 1/10 of the height of crossbeam 6, the spacing between the crossbeam and the bridge pier 1 is 0.3m~0.5m, in the crossbeam 6 box hat and The weight ratio of concrete is 0.2:1~0.5:1, the thickness of the crossbeam 6 is the 1/10~1/5 of its length, its structural volume compared with For relative to left and right two panels box beam very little, especially beam thickness is relatively thin, conducts oneself with dignity smaller, consequently reduce left and right box beam and bear Dead load, while also reduce bottom bridge pier, the load that pile foundation is born.In addition the slim and graceful profile of crossbeam, adds two panels case Daylighting effect, also enhances landscape effect under bridge between beam.
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 (9)

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 the left box beam is arranged on described by a left support abutment On bridge pier, the right box beam is arranged on the bridge pier by a right support abutment, and the left support abutment is identical with the structure of right support abutment;
The left side of the left box beam is provided with the left wing plate stretched out obliquely upward, and the right side of the right box beam is provided with to be stretched out obliquely upward Right wing plate, and the left wing plate and right wing plate are symmetrical;
The crossbeam that passes on left of the right side of the left box beam and the right box beam is fixed together, in addition, the horizontal stroke The cross section of beam is in I-shaped, and it is formed by cross section in penetration concrete in I-shaped box hat;
The crossbeam 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 horizontal stroke Beam, left box beam are concordant with the bottom face of right box beam.
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 Depth of beam is the 2/5~4/5 of the left box beam height.
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 branch The height of seat is the 1/11~1/9 of the beam height.
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 horizontal stroke Spacing between beam and the bridge pier is 0.3m~0.5m.
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 horizontal stroke The weight ratio of box hat and concrete is 0.2 in beam:1~0.5:1.
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 horizontal stroke The tensile strength of beam is more than 10MPa.
9. 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 The compression strength of beam is more than 15MPa.
CN201510952988.6A 2015-12-17 2015-12-17 Rail track traffic two-wire track girder is embraced in a kind of magnetic suspension Active CN105568789B (en)

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Publication number Priority date Publication date Assignee Title
CN105544372B (en) * 2015-12-17 2017-08-01 中铁第四勘察设计院集团有限公司 Rail track traffic two-wire track girder is embraced in a kind of magnetic suspension
CN105568788B (en) * 2015-12-17 2017-09-29 中铁第四勘察设计院集团有限公司 Rail track traffic two-wire track girder is embraced in a kind of magnetic suspension

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KR101299097B1 (en) * 2012-02-02 2013-08-28 주식회사 에스비엔티 Steel box girder bridge having cross beam enhanced stiffness and construction method thereof
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
CN203834337U (en) * 2014-05-12 2014-09-17 上海市隧道工程轨道交通设计研究院 Elevated rail traffic station integrated bridge structure
CN204282185U (en) * 2014-11-28 2015-04-22 中铁第四勘察设计院集团有限公司 A kind of armful rail magnetic levitation track traffic bridge
CN104594173B (en) * 2014-11-28 2017-09-22 中铁第四勘察设计院集团有限公司 One kind embraces rail magnetic levitation track traffic box beam
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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