EP2219927B1 - Poutre sollicitée en flexion en acier, destinée à un système d'aiguillage pour trains à sustentation magnétique - Google Patents

Poutre sollicitée en flexion en acier, destinée à un système d'aiguillage pour trains à sustentation magnétique Download PDF

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Publication number
EP2219927B1
EP2219927B1 EP08858402A EP08858402A EP2219927B1 EP 2219927 B1 EP2219927 B1 EP 2219927B1 EP 08858402 A EP08858402 A EP 08858402A EP 08858402 A EP08858402 A EP 08858402A EP 2219927 B1 EP2219927 B1 EP 2219927B1
Authority
EP
European Patent Office
Prior art keywords
cover plates
top chord
plates
web
hollow profile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP08858402A
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German (de)
English (en)
Other versions
EP2219927A1 (fr
Inventor
Karl Fichtner
Wolfgang Kirstein
Robert Lippert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Transrapid GmbH
Original Assignee
ThyssenKrupp Transrapid GmbH
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Publication date
Application filed by ThyssenKrupp Transrapid GmbH filed Critical ThyssenKrupp Transrapid GmbH
Publication of EP2219927A1 publication Critical patent/EP2219927A1/fr
Application granted granted Critical
Publication of EP2219927B1 publication Critical patent/EP2219927B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E01B25/34—Switches; Frogs; Crossings

Definitions

  • the invention relates to a bending beam of the type specified in the preamble of claim 1.
  • a known switch assembly of the type of interest here consists of a so-called. Biegeweiche (z. Maglev Transrapid - The new dimension of travel ", Hestra-Verlag Darmstadt 1989, pages 32 to 35 . DE 10 2004 015 495 A1 ).
  • An essential part of such Biegeweiche is a bendable, made of steel carrier of the above-mentioned genus, the z. B. 78 m long or longer or shorter and carries the infrastructure or equipment from this.
  • the bending beam is stationarily arranged at one end and, moreover, movably mounted on rails by means of a plurality of supporting frames and wheels mounted thereon, which rails are arranged transversely to its longitudinal direction, which is also the direction of travel or x-direction.
  • the support frames along the rails can be moved back and forth, whereby the carrier is elastically bent and selectively aligned with one of several, branching from the switch driveways.
  • the carrier may be composed of a plurality of interconnected in its longitudinal direction sections.
  • the bending beam usually contains as a basic element consisting of a box section with a rectangular cross-section hollow body composed of two lateral web plates, a lower flange and a top flange and stiffened by internal transverse walls (bulkheads).
  • the bending beam in the extensions of the bulkheads mounted cantilevers (support plates) and supported on these cover plates, where various functional parts of the infrastructure such.
  • the cover plates and the functional parts consist of sections which are comparatively short in the longitudinal direction of the travel path and form individual track elements. These preferably have one of the pitch of the maglev train dependent length of z. B. 2064 mm and are separated by narrow, transverse to the hollow body extending column.
  • the cover plates have a number of slots, in order to avoid that they warp or fold during elastic bending of the bending beam perpendicular to its surface, ie in the z-direction, ie a reduction of the stiffness and stress of the switch to the z- Axis is achieved.
  • the technical problem underlying the invention is to improve the bending beam of the type described above in that it has an increased fatigue strength and allows a greater number of Weichenver einen and vehicle crossings.
  • the cantilevers are each divided into a pressure and tension strut.
  • a distribution of the forces resulting from the driving operation and the positive deformation is possible on tensile forces which act essentially only on the tension struts and in the y direction, and on compression forces which act essentially only on the compression struts and predominantly in the z direction , These forces therefore no longer need to be absorbed solely by the inner edges or by the welds connecting them to the web plates.
  • the invention makes it possible to arrange the inner edges of the struts and connected to the upper straps ends of the tie rods with sufficient distances from each other. As a result, non-visible and inaccessible welds are largely avoided.
  • the risk of tearing underlying load-bearing welds can be arranged so that they are well visible and, if necessary, better accessible than before from the outside. Because of the reduced loads in the area of the cross joints, more favorable notch cases can also be assigned, i.
  • the welds can be designed so that defined in standards curbs can be clearly assigned. Overall, the invention therefore leads to reduced stresses in the welds, increased fatigue strength and a longer life of the entire switch assembly.
  • Fig. 1 to 5 contains a conventional switch assembly in the form of a bending weir for magnetic levitation trains a bendable, made of steel and over the entire length of the switch, for example, about 78 m long bending beam 1.
  • the hollow profile 2 is according to Fig.
  • each web plate 5 formed from a top flange 3, a bottom flange 4 and two connecting these side parts or web plates 5, which are arranged in the installed state substantially vertically and perpendicular to the upper flange 3 and the lower flange 4.
  • the stiffening serving transverse walls or bulkheads 6 and 7 are provided, according to Fig. 4 and 5 extend the bulkheads 6, starting from the top flange 3, about half the height and the bulkheads 7 over the entire height of the hollow section 2.
  • ribs 10 On the webs 9 are arranged parallel to the cantilevers 8 and preferably in their extensions (y-direction) arranged ribs 10, on the outer faces of equipment 11 are mounted in the form of the tracking of the vehicles serving side guide rails.
  • a side guide rail is provided on each longitudinal side of the bending beam 1, wherein the arrangement is preferably mirror-symmetrical to xz-plane of the imaginary coordinate system.
  • cover plates 12 are supported on both sides of the hollow section 2 and in a symmetrical arrangement, where further, not shown equipment in the form of sliding strips can be attached, which serve to settle the vehicles and how the equipment 11 over the entire length of the bending beam 1 extend.
  • the bending beam 1 is provided at the bottom of the webs 9 with equipment parts 14 in the form of Statoexm z. B. are used for attachment of stator of a long stator linear motor.
  • the described parts 1 to 14 are made of steel and are under formation of the Fig. 1 to 4 apparent bending beam 1 by welding inextricably linked.
  • Fig. 2 results in the bending beam 1 for setting the switch assembly of a continuous infrastructure section A on a branching infrastructure section B continuously to a maximum of z. B. bent about 3.65 m.
  • the bending beam 1 to z. B. six supports 16 to 21 supported, wherein it is fixedly connected to a first support, here the support 16, while on the other supports 17 to 21 in a known manner transverse to the longitudinal direction, ie in the y-direction and substantially horizontally can be moved back and forth.
  • Apparent equipment parts 10 and 14 and the cover plates 12 are not mitgebogen with the hollow section 2 when operating the switch assembly. They consist rather of z. B. only about 2 m long sections arranged in the installed state in the x direction one behind the other and by narrow column 22 (FIG. Fig. 3 ) are separated from each other, so that they automatically arrange when bending the hollow section 2 along a traverse.
  • the cover plates 12 are expediently provided with parallel to the x- and y-axis slots 12 a to facilitate the bending of the hollow section 2 and avoid distortions or folding of the cover plates 12 in the z-direction, which due to their coupling to the Cantilevers 8 could result.
  • the initially described problems of the described bending beam 1 are mainly due to in Fig. 3 and 4 partially indicated by the reference numeral 24 welds in the region of the cross joints between the inner and outer sides of the web plates 5, the bulkheads 6, 7 and inner edges 8a of the cantilevers 8.
  • These welds 24 not only carry the cantilevers 8 and their associated equipment parts 11 and 14, but also the loads occurring when driving over a vehicle.
  • the cover plates 12 are supported almost exclusively on the cantilever arms 8 and along short center webs 12b and with the formation of further welds 25 also connected to the hollow sections 2 and their upper chords 3 (see. Fig. 3 and 5 ).
  • the welds 25 and the upper ends of the welds 24 of the cross joints are not visible and accessible from all sides required, which complicates or prevents necessary maintenance and repair work.
  • an inventive bending beam 31 according to Fig. 6 to 11
  • a hollow profile 32 which is composed of a top flange 33, a bottom flange 34, web plates 35 and bulkheads 36, 37, and cantilevers 38, at which webs 39, ribs 40, equipment 41, with slots 42a, middle portions 42b and end portions 42c provided cover plates 42 and equipment 44 are attached, but the cantilevers 38 and cover plates 42 are designed differently than before.
  • Fig. 6 to 8 show, in Fig. 6 in contrast to Fig. 3 on both sides of the hollow profile 32 only one cover plate 42 is shown, the cantilever arms 38 two merge into each other sections, of which a lower portion is formed as a provided with an inner edge 38a strut 38b and upper portion as a tension strut 38c.
  • the pressure strut 38b is connected with its inner edge 38a to an associated web plate 35 and connected thereto by welding. From the inner edge 38a and thus from the hollow profile 32, the pressure strut 38b extends obliquely upwards and outwards to a transition region 38d, which is welded to the web 39.
  • the tension strut 38c is formed, which extends from there substantially in the y-direction and the hollow profile 2 and includes with the pressure strut 38b an acute angle.
  • the parts 38a to 38d are as Fig. 6 shows, preferably provided on a plane-parallel, integrally manufactured sheet metal component.
  • Fig. 7 and 8th a comparison of the Fig. 7 and 8th in that those compression struts 38b, which are supported on a bulkhead 6 which extends over approximately one half of the height of the hollow profile 2, end at a correspondingly short inner edge 38a ( Fig.
  • the cover plates 42 are, in particular Fig. 9 in a detail of the in Fig. 6 left cover sheet, according to a particularly preferred and hitherto considered best embodiment of the invention in the field of their two End portions 42c each provided with a hollow profile 32 toward the recess 42d, in each of which an integrally formed on the cover plate 42, extending substantially in the y-direction drawstring 42e protrudes.
  • the described construction of the bending beam 32 brings numerous advantages.
  • the welds 24 ( Fig. 3 ) corresponding, the pressure struts 38b with the web plates 35 connecting welds 51 ( Fig. 6 ) significantly relieved in the area of the cross joints.
  • the supporting welds which mainly include the welds 48 and 51, with a relatively large distance in the z-direction from each other.
  • the distances between the ends of the tie rods 38c facing the upper flange 33 and the upper ends of the inner edges 38a of the compression struts 38b in the z direction become correspondingly Fig. 7 and 8th preferably chosen so large that the welds 48, 51 are not only visible from all required pages, but can be easily achieved with conventional testing or maintenance equipment.
  • the repair of cracks or the re-welding of welds is facilitated.
  • a further significant advantage consists in the fact that a bending of the bending beam 31 leads to an elastic forced deformation of the tension straps 42e of the cover plates 42, which favors the flexibility of the bending operation and reliably avoids distortions of the cover plates 42. Regardless, the various roadway parts continue to be easy to produce.
  • the invention is not limited to the described embodiment, which could be modified in many ways. This is especially true for the off Fig. 6 and 9 apparent shape and size of the slots 42a and recesses 42d in the cover plates 42 and the connections of the cover plates 42 and cantilevers 38 with the equipment parts 41 and 44. Furthermore, the special shape of the cover plates 42 and the cantilevers 38 and their pressure and Zustbenben 38b, 38c be made dependent on the needs of the individual case. Finally, it should be understood that the various features may be applied in combinations other than those described and illustrated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Railway Tracks (AREA)
  • Resistance Welding (AREA)
  • Bridges Or Land Bridges (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Claims (5)

  1. Support flexible en acier pour un dispositif d'aiguillage sur des trains à suspension magnétique, contenant au moins un profilé creux (32) en forme de caisson, flexible dans une direction transversale (y) et étendu dans une direction longitudinale (x), qui présente des tôles d'âme latérales (35) et une membrure supérieure (33) reliée à celles-ci, une pluralité de cantilevers (38) espacés dans la direction longitudinale (x), étendus dans la direction transversale (y) et reliés aux côtés extérieurs des tôles d'âme (35) et une pluralité de tôles de couvercle (42) disposées les unes derrière les autres dans la direction longitudinale (x), séparées les unes des autres par des interstices étroits (22) et appuyés sur les cantilevers (38), qui présentent respectivement un gradin central (42b) relié à la membrure supérieure (33) et à un cantilever coordonné (38) et deux portions d'extrémité (42c) reliées respectivement à un autre cantilever coordonné (38), dans lequel les liaisons entre les tôles d'âme (35), les cantilevers (38) et les tôles de couvercle (42) sont constituées de liaison par soudure, caractérisé en ce que les cantilevers (38) présentent respectivement un arc-boutant (38b) relié au profilé creux (32) et dépassant vers l'extérieur en oblique vers le haut à partir de celui-ci et un tirant (38c) dépassant vers l'intérieur par rapport au profil creux (32), façonné sur une extrémité extérieure de l'arc-boutant (38b), au moyen duquel ils sont reliés au gradin central (42b), respectivement aux portions d'extrémité (42c) des tôles de couvercle (42) coordonnées et à la membrure supérieure (33).
  2. Support flexible selon la revendication 1, caractérisé en ce que les portions d'extrémité (42c) des tôles de couvercle (42) sont pourvues de cavités (42d) ouvertes vers l'intérieur par rapport au profilé creux (32) et des bandes de traction flexibles (42e) dépassant à l'intérieur de celles-ci, au moyen desquelles elles sont reliées aux tirants (38c) des cantilevers coordonnés (38), et en ce que les bandes de traction (42e) présentent des extrémités reliées à la membrure supérieure (33).
  3. Support flexible selon la revendication 2, caractérisé en ce que la membrure supérieure (33) est pourvue d'épaulements (33a, 33b) façonnés latéralement, espacés dans la direction longitudinale (x) et est reliée au moyen de ceux-ci aux gradins centraux (42b) et aux bandes de traction (42e).
  4. Support flexible selon la revendication 3, caractérisé en ce que les épaulements (33a, 33b) et les extrémités des tirants (38c) coordonnées à ceux-ci sont reliés les uns aux autres le long de surfaces de positionnement chanfreinées.
  5. Support flexible selon une des revendications 1 à 4, caractérisé en ce que entre les arêtes intérieures (38a) fixées sur les tôles d'âme (35) des arcs-boutants (38b) et les extrémités des tirants (38c) reliées à la membrure supérieure (33), des espacements permettant respectivement l'accès aux liaisons par soudure sont prévus.
EP08858402A 2007-12-11 2008-11-28 Poutre sollicitée en flexion en acier, destinée à un système d'aiguillage pour trains à sustentation magnétique Not-in-force EP2219927B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202007017388U DE202007017388U1 (de) 2007-12-11 2007-12-11 Biegeträger aus Stahl für eine Weichenanordnung bei Magnetschwebebahnen
PCT/DE2008/001979 WO2009074130A1 (fr) 2007-12-11 2008-11-28 Poutre sollicitée en flexion en acier, destinée à un système d'aiguillage pour trains à sustentation magnétique

Publications (2)

Publication Number Publication Date
EP2219927A1 EP2219927A1 (fr) 2010-08-25
EP2219927B1 true EP2219927B1 (fr) 2013-02-20

Family

ID=39244859

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08858402A Not-in-force EP2219927B1 (fr) 2007-12-11 2008-11-28 Poutre sollicitée en flexion en acier, destinée à un système d'aiguillage pour trains à sustentation magnétique

Country Status (5)

Country Link
US (1) US8371228B2 (fr)
EP (1) EP2219927B1 (fr)
CN (1) CN101868393B (fr)
DE (1) DE202007017388U1 (fr)
WO (1) WO2009074130A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108203902A (zh) * 2018-02-11 2018-06-26 北京交通大学 一种适用于磁浮交通的∏型轨
CN110438852B (zh) * 2018-05-05 2024-09-20 中铁宝桥集团有限公司 一种适应磁悬浮运行车辆测速的道岔梁结构
WO2020151243A1 (fr) * 2019-01-23 2020-07-30 中车青岛四方机车车辆股份有限公司 Aiguille pour voie d'un train à sustentation magnétique
CN111535086B (zh) * 2020-06-10 2024-09-20 中铁宝桥集团有限公司 磁浮道岔小位移转辙锁定一体装置及方法
CN113356647B (zh) * 2021-06-13 2023-01-13 中国建筑第八工程局有限公司 一种双肢悬挑型钢柱系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5575001A (en) 1978-11-29 1980-06-06 Tokyo Shibaura Electric Co Simple joint type branching apparatus for track of constant conductive magnetic float vehicle
DE4038339A1 (de) * 1990-12-01 1992-06-04 Industrieanlagen Betriebsges Stellvorrichtung fuer biegeweichen
DE20208421U1 (de) * 2002-05-28 2003-10-09 ThyssenKrupp Technologies AG, 45128 Essen Biegeträger aus Stahl für eine Spurwechseleinrichtung bei Fahrwegen von Magnetschwebefahrzeugen
CN2687161Y (zh) * 2004-01-16 2005-03-23 上海迈祥工程技术咨询有限公司 磁浮列车轨道线路道岔机构
DE102004015495A1 (de) 2004-03-26 2005-10-13 Thyssenkrupp Transrapid Gmbh Weichenanordnung für Magnetschwebebahnen und dafür geeignete Biegeträger

Also Published As

Publication number Publication date
EP2219927A1 (fr) 2010-08-25
CN101868393B (zh) 2013-04-03
WO2009074130A1 (fr) 2009-06-18
US8371228B2 (en) 2013-02-12
DE202007017388U1 (de) 2008-03-27
CN101868393A (zh) 2010-10-20
US20100269728A1 (en) 2010-10-28

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