CN105544372B - 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
CN105544372B
CN105544372B CN201510952143.7A CN201510952143A CN105544372B CN 105544372 B CN105544372 B CN 105544372B CN 201510952143 A CN201510952143 A CN 201510952143A CN 105544372 B CN105544372 B CN 105544372B
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China
Prior art keywords
box
bridge pier
crossbeam
embraced
magnetic suspension
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CN201510952143.7A
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CN105544372A (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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Publication of CN105544372A publication Critical patent/CN105544372A/en
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    • 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

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 inverted T-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 inverted T-shaped, and its penetration concrete in the box hat that cross section is in inverted T-shaped is formed;
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.
Preferably, the crossbeam includes the vertical portion that horizontal component is arranged on horizontal component, the horizontal component The lower end of left end and right-hand member respectively with the left box beam and right box beam is fixedly connected, the left end and right-hand member point of the vertical portion Side not with the left box beam and right box beam is connected.
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 at pier location set inverted T-shaped crossbeam, 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 the structural representation of the present invention;
Fig. 4 is that the box beam with wing plate is arranged on the schematic diagram on bridge pier in the prior art;
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 inverted T-shaped, and its penetration concrete in the box hat that cross section is in inverted T-shaped is formed;The horizontal stroke of inverted T-shape The box hat of the periphery of beam 6 is using steel plate formation accommodating chamber, filling armored concrete in chamber, its connected mode with both sides box beam The connected mode of flange and bolt can be used, it would however also be possible to employ the mode of welding.In magnetic suspension rail building course, two Bar box beam is prefabricated in advance, is then installed and fixed by Bridge Erector.Because extremely there being space between two box beams be arrangeding in parallel Limit, the horizontal component of inverted T-shape structure is fixedly connected with box beam side bottom, it is ensured that the rigidity in horizontal direction, inverted T-shape knot The vertical portion of structure is fixedly connected with box beam side, it is ensured that the rigidity in vertical direction, so that present invention employs less Material, occupy less volume, result on horizontally and vertically rigidity higher.It is suitably applied magnetcisuspension Levitation track girder 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, its structural volume is more relative to left and right two panels box beam very little, especially crossbeam Thinner thickness, conducts oneself with dignity smaller, the dead load that left and right box beam is born is consequently reduced, while also reducing bottom bridge pier, pile foundation The load born.In addition the slim and graceful profile of crossbeam, adds daylighting effect under the bridge between two panels box beam, also enhances landscape effect Really.
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 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 inverted T-shaped, and its penetration concrete in the box hat that cross section is in inverted T-shaped is formed;
The connected mode of the crossbeam and both sides box beam for flange and bolt connected mode, or welding connected mode;
The horizontal depth of beam is the 2/5~4/5 of the left box beam height, the bottom face of the crossbeam, left box beam and right box beam Concordantly;
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 branch The height of seat is the 1/11~1/9 of the beam 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 horizontal stroke The weight ratio of box hat and concrete is 0.2 in beam: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 horizontal stroke The tensile strength of beam 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 horizontal stroke The compression strength of beam 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 horizontal stroke Beam includes horizontal component and is arranged on vertical portion on horizontal component, the left end and right-hand member of the horizontal component respectively with the left side Box beam is fixedly connected with the lower end of right box beam, the left end and right-hand member of the vertical portion respectively with the left box beam and right box beam Side connection.
CN201510952143.7A 2015-12-17 2015-12-17 Rail track traffic two-wire track girder is embraced in a kind of magnetic suspension Active CN105544372B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510952143.7A CN105544372B (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 (2)

Application Number Priority Date Filing Date Title
CN201510952143.7A CN105544372B (en) 2015-12-17 2015-12-17 Rail track traffic two-wire track girder is embraced in a kind of magnetic suspension
PCT/CN2016/109773 WO2017101767A1 (en) 2015-12-17 2016-12-14 Double-track beam for magnetic-levitation rail-wrap-type rail transit

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CN105544372B true CN105544372B (en) 2017-08-01

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
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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JP2007051416A (en) * 2005-08-12 2007-03-01 Gijutsu Kaihatsu Kenkyusho:Kk Scaffold device
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
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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
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CN204875390U (en) * 2015-08-10 2015-12-16 中铁二十三局集团轨道交通工程有限公司 Low -speed magnetic suspension roof beam among precast reinforced concrete
CN105544371B (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
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
CN205276076U (en) * 2015-12-17 2016-06-01 中铁第四勘察设计院集团有限公司 Two line track roof beams of rail formula track traffic are embraced in magnetic suspension
CN105568789B (en) * 2015-12-17 2017-09-22 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
CN205329437U (en) * 2015-12-17 2016-06-22 中铁第四勘察设计院集团有限公司 Two line track roof beams of rail formula track traffic are embraced in 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
CN205276073U (en) * 2015-12-17 2016-06-01 中铁第四勘察设计院集团有限公司 Two line track roof beams of rail formula track traffic are embraced in magnetic suspension
CN205276115U (en) * 2015-12-17 2016-06-01 中铁第四勘察设计院集团有限公司 Two line track roof beams of rail formula track traffic are embraced in magnetic suspension

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