EP3460124A1 - Sleeper with rigid shell for railway track - Google Patents

Sleeper with rigid shell for railway track Download PDF

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Publication number
EP3460124A1
EP3460124A1 EP18176624.7A EP18176624A EP3460124A1 EP 3460124 A1 EP3460124 A1 EP 3460124A1 EP 18176624 A EP18176624 A EP 18176624A EP 3460124 A1 EP3460124 A1 EP 3460124A1
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EP
European Patent Office
Prior art keywords
block
face
filling device
shell
cross member
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.)
Granted
Application number
EP18176624.7A
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German (de)
French (fr)
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EP3460124B1 (en
Inventor
Arnaud Loaec
Gilles Aubriet
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SATEBA Systeme Vagneux SAS
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SATEBA Systeme Vagneux SAS
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Publication of EP3460124A1 publication Critical patent/EP3460124A1/en
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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
    • E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
    • E01B1/005—Ballastless track, e.g. concrete slab trackway, or with asphalt layers with sleeper shoes
    • 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
    • E01B2204/01—Elastic layers other than rail-pads, e.g. sleeper-shoes, bituconcrete

Definitions

  • the invention relates to the field of railroad sleepers, monobloc or bi-block, to be cast in concrete.
  • the invention relates to sleepers with rigid shell.
  • Such sleepers with rigid hulls have been described in detail in the documents EP0919666 and FR2906269 .
  • the use of a rigid rigid shell around the concrete block has improved the use of ties with waterproof elastic booties that allowed a simplified replacement of the cross without fracturing the surrounding concrete.
  • the rigid shell does not tear during handling (transport, storage, installation), unlike elastic slippers, it can fracture or crack, which makes it lose its seal and its functions of maintaining the concrete block.
  • these shells are not practical for the installation of the seal which must come to prevent the intrusion of foreign element between the shell and the block.
  • the transom can overcome two existing difficulties: the fragility of the hull and the installation of the joint. Indeed, thanks to the presence of the filling device, a handling efforts are better distributed and no longer deform too much on the hull and secondly, the filling device can serve as a bottom seal as explained below.
  • the filling device defines an upper flange extending along the periphery of the block, said upper flange being located inside the rigid shell.
  • the device then serves as the bottom of the joint. This embodiment is done by means of the filling device disposed between the sealed rigid shell and the lower part of one of the peripheral faces.
  • the crossmember may then further comprise a seal configured to seal between the block and the shell, said seal resting on the upper edge of the filling device, which thus serves as the bottom of the joint.
  • the filling device is of shock-absorbing material such as foam or polystyrene.
  • the material of the filling device preferably has physical properties such that it is transparent with respect to the transmission and damping of vibrations generated by the passage of a train or has plastic properties so that the filling device is deforms definitively as soon as the first train passes.
  • the rigid shell locally comprises, in particular at the segments, a flared top flange and the top flange of the filling device locally has an enlargement which abuts on the upper flange of the rigid shell.
  • the block comprises a rail attachment zone on the upper face and the force transmission means further comprise a resilient sole in contact with the lower face of the block, the resilient soleplate being disposed opposite the rail attachment area.
  • the resilient sole with respect to the underside, the resilient sole and the filling device are placed side by side, without stacking.
  • the invention can be applied to a monobloc cross member, in which the filling device comprises two end elements for each end of the monobloc cross member and a central element located between the two end members.
  • the invention can be applied to a bi-block cross-member in which the filling device comprises two end elements for each of two blocks.
  • the invention relates to a filling device disposed in the volume, and defining an upper flange extending over the entire periphery of the block, said upper flange being located inside the rigid shell.
  • this filling device then occupies a maximum of unoccupied volume, in particular by being positioned between the sealed rigid shell and the lower part of one of the peripheral faces, and / or between the sealed rigid shell and the lower face of the block.
  • the invention in another aspect, relates to a filling device disposed in the volume, being positioned between the sealed rigid shell and the lower part of one of the peripheral faces and between the sealed rigid shell and the lower face of the block, so to maximize the unoccupied volume.
  • this device then defines an upper flange extending over the entire periphery of the block, said upper flange being located inside the rigid shell.
  • the invention applies in a manner similar to a biblock crossbar, formed of two blocks or "blochets" of reinforced concrete, connected to each other by a rigid, straight strut, and for example constituted by a metal angle embedded partially in the one and the other of the blocks.
  • Each of the blocks is intended to carry a respective rail 2 of the railway, in a non-detailed but known manner.
  • the rails 2 define a longitudinal reference.
  • each block 10 is delimited downwards by a lower face 11 flat manufacturing tolerances, which bottom face 11 is intended to rest indirectly on a support consisting for example of the upper face of a raft or a slab.
  • Each block 10 is delimited upwards by an upper face 12 serving as support, which comprises a fastening zone 16 of rail 2, in this case two zones 16 for the one-piece cross member.
  • Each block 10 comprises four peripheral faces 13, 14 (only two are visible in the figures) connecting the upper face 12 to the lower face 11 via respectively a round and / or a bevel.
  • the peripheral faces 13, 14 comprise two longitudinal peripheral faces 14 and two peripheral faces 13.
  • the peripheral faces 13, 14 each comprise a substantially flat bottom portion 13a, 14a, a substantially flat upper portion.
  • the longitudinal upper parts and the transverse upper parts converge mutually upwards.
  • the lower longitudinal portions 14a and the lower transverse portions 13a converge mutually downwards.
  • the crossing 1 of the figure 1 further comprises a sealed rigid shell 20 for receiving the block 10 and means for transmitting the forces 50, 60.
  • the sealed rigid shell 20 is known and will not be unduly detailed. It is a semi-open hull with an open face, comprising a bottom 21 and 23 transverse and longitudinal peripheral side walls 24.
  • the rigid shell 20 surrounds the lower face 11 and the lower parts 13a, 14a of the peripheral faces 13, 14 of the block 10. By wrapping, it means that it is around and not that there is necessarily a contact in all point.
  • the bottom 21 and the walls 23, 24 all have generally rectangular shapes.
  • the force transmission means 50, 60 are themselves arranged between the block 10 and the sealed rigid shell 20, being in contact with the two (to the functional game near for some elements to allow the insertion of the block 10 in the hull 20). Their function is to transmit and diffuse the vertical and horizontal forces generated by the passage of a train, these vibrations being able to wear and damage the railway. These devices can also play a role of vibration mitigation by creating a mass-spring system.
  • These means for transmitting the forces 50, 60 are known (see for example the two documents cited in the introduction).
  • An unoccupied volume is defined, which corresponds to the empty volume between the shell 20 and the block 10, to which the means for transmitting the forces 50 are subtracted, 60. In other words, it is the real space between the shell 20 and the block 10 with the force transmission means 50, 60, this space being generated in particular by the presence of the force transmission means 50, 60 which impose a distance between the block 10 and the shell 20.
  • Said means 50, 60 may comprise a sole 50 disposed under the lower face 11 of the block 10 and in particular facing the attachment zones 16, because the forces are essentially transmitted at this level.
  • the sole 50 extends in general over the entire width of the lower face 11, or almost the entire width (to about 1 cm). This sole 50 is known and will not be detailed.
  • Said means 50, 60 may comprise segments 60, also called lateral sectors because they are generally arranged on the lower portions 13a, 14a of the peripheral faces 13, 14 of the block 10. There is generally a segment 60 on each longitudinal peripheral face 14 and two segments on each transverse peripheral face 13. The segment 60 of the longitudinal peripheral face 14 can almost make the width of said face 14.
  • the force transmission means 50, 60 consist of a resilient material adapted to diffuse the loads of a train (see for example the document FR2906269 cited in introduction).
  • this volume generated two difficulties: the first is related to the fragility of the hull 20 during handling (transport, storage and installation), and the second is related to the establishment of a seal 40 between the block 10 and the shell 20, at the level of the open face of the shell 20.
  • the unoccupied volume allows the deformation of the shell 20 which can then break if it resumed shock, and this unoccupied volume is not convenient to install the seal 40 .
  • the cross 1 comprises a filling device 30 located in the aforementioned unoccupied volumes, to at least partially fill them.
  • the filling device 30 is located between the shell 20 and the side faces 13, 14, or between the shell 20 and the lower face 11 and preferably both at the same time. Therefore, along a peripheral face 13, 14, or along the lower face 11, there will be, between the shell 20 and the block 10, the force transmission means 50, 60 and the filling device 30 side by side, without overlapping.
  • the filling device 30 thus makes it possible to avoid the presence of an empty volume which weakens the hull 20 during the handling of the cross-member 1.
  • By carrying out a force-recovery work it is for example possible to transport the cross-member with forks that are not located next to the soles 50.
  • the filling device 30 is intended to avoid breaking the shell 20, it is preferable that it fills the maximum unoccupied volume.
  • the filling device 30 comprises a flange 32 which extends over the entire periphery of the block 10 (or almost the entire periphery: it is understood that the more the flange is continuous and follows the periphery, the more the laying of the joint will be simplified) on which the seal 40 (see Figures 2 and 3 ).
  • This flange 32 thus runs along the peripheral faces 13, 14 of the block 10 (without necessarily being in contact with it, even if to facilitate the installation of the seal 40 a contact is advantageous).
  • This flange 32 does not arrive at the open face of the shell 20, but is slightly set back, of the order of one or a few centimeters.
  • the seal 40 there is a bottom joint on which the seal 40 can be supported, which ensures an efficient and reliable implementation.
  • the seal 40 also bears on the lateral faces 23, 24 of the shell 20.
  • the shell 20 may locally comprise a flared peripheral flange 22 (in particular at the side sectors 60).
  • the edge 32 of the filling device 30 locally has an enlargement 34, so that it can bear against the flared peripheral rim 22 of the shell 20 (see FIG. figure 2 ).
  • the filling device 30 is typically made of foam or polystyrene.
  • the filling device 30 is only intended to facilitate the handling of the cross member and the installation of the cross member, in particular for the seal 40.
  • the filling device 30, by its material, has no advantage (nor any disadvantage, it can not be avoided). that is, it does not act as a vibratory bridge) as regards the attenuation of the vibrations generated by a train. This is reflected in terms of physical characteristics by a resistance to elastic deformation significantly lower compared to the transmission means of the forces 50, 60 (for example the foam) or by a resistance to plastic deformation significantly lower compared to the means of transmission of the forces 50, 60 (for which the plastic deformation threshold is normally never achieved). By far inferior is meant negligible from a physical point of view.
  • the block 10 will move vertically and laterally in the shell 20 and will crush the filling device 30, which by plastic deformation, will deform permanently.
  • the cross member substantially returns to its original position, due in particular to the resilience of the force transmission means 50, 60, so that the filling device 30 is no longer in contact with the block 10 .
  • the filling device 30 is very elastic, it will compress and regain its shape. Because of its high elasticity, it is structurally transparent as regards the transmissions between the block 10 and the shell 20, that is to say in particular that it does not function as a vibration bridge.
  • the filling device 30 can thus absorb shocks and operate as a shock absorber device. It acts as a protection by concealing shots and limiting the deformations of the hull.
  • the filling device 30 comprises an end element 310 configured to engage with the lower portion 14a of the longitudinal peripheral face 14 and with the lower face 11 of the block 10.
  • This end element 310 is formed of a single piece. It defines an end face 314, two lateral tabs 312 which extend from the end face 314 and a bottom face 313, which extends substantially perpendicular to the end face 314 and the side tabs 312.
  • the end face is in view of the longitudinal side face 14 of the block 10; the lateral lugs 312 are facing, respectively, the two transverse faces 13 of the block 20; the bottom face 313 is facing the lower face of the block 11, but not facing the sole 50.
  • the bottom face 313 comes closest to the sole 50, without there being any superposition.
  • the end face 314 comprises a through opening 316 for a segment 60.
  • the segment 60 which is a force transmission means, must be in contact with the block 10 and the rigid shell 20, at play. functional near. Therefore, the end portion 310 fills almost the entire unoccupied volume at the end of the block 10.
  • the lateral lugs 312 have a shape adapted to the segment 60 which are on the transverse lateral faces 13a of the block 10. Thus, a notch 318 is observed in the lateral lugs 312 to allow the passage of the segment 60.
  • the end face 314 and the side tabs 312 define a portion of the peripheral flange 32. This means that they are level.
  • the filling device 30 also comprises a central element 320 configured to engage the lower face 11 and the transverse side faces 13 of the block 10.
  • This central element 320 is formed of a single piece or two pieces to avoid handling. parts too long. It defines a bottom wall 323 and two side walls 322 which extend from the bottom wall 323.
  • the bottom wall 323 is opposite the lower face of the block 11, but not facing the flange 50; the two side walls 322 are opposite, respectively, of the two transverse faces 13 of the block 20.
  • the bottom face 323 touches the sole 50, without there being any superposition.
  • the bottom face 323 touches the two flanges, on both sides.
  • the side walls 322 have a shape adapted to the segments 60 which are on the transverse side faces 13a of the block 10. Thus, notches 326 are observed to allow the passage of the segment 60.
  • the side walls 322 define a portion of the peripheral rim 32 This means that they are level with the side tabs 312. In particular, the side tabs 312 and the side walls 322, due to their respective notches 318, 326 meet above the segment 60 they straddle. This ensures the continuity of the flange 32.
  • a monobloc cross member at the lower face 11 of the block 10, one can observe successively in the transverse direction, and without superposition: a bottom face 313, a sole 50, a wall bottom 313, a sole 50 and a bottom face 313.
  • a lateral leg 312 at the level of the transverse side face 14 of the block 10, successively in the transverse direction, and without superposition: a lateral leg 312, a segment 60 (as a function of the height of the direction according to which one observe the crossbar), a side wall 322, a segment 60 (idem), a side tab 312. It can thus be seen that most of the unoccupied volume has been filled with filling device 30.
  • the filling device 30 defines a peripheral flange 32 which is continuous and level, which makes it easy to set up the seal 40.
  • the filling device 30 may comprise only two end members, which join to form the peripheral flange 32.
  • the filling device 30 can be made with more different parts. It is however important that it occupies the maximum of unoccupied volume possible and that it allows the realization of the flange 32. Finally, it must not be interposed between on the one hand the force transmission means 50, 60 and on the other hand the block 10 or the shell 20 .
  • the crossbar 1 is manufactured in the factory and then delivered with the shell 20.
  • the crossbar is then cast in concrete B according to known methods (see Figures 2 and 3 ).
  • the filling device 30 is not removed during installation. Due to its specific properties, it is considered that it has no influence on the reaction of the cross member in use.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

Abrégé : L'invention concerne une traverse (1) de chemin de fer, comportant au moins un bloc (10) notamment en béton, présentant
une face inférieure (11) destinée à reposer sur un support, une face supérieure (12) destinée à recevoir au moins un rail longitudinal (2), et quatre faces périphériques
la traverse (1) comprenant
une coque rigide étanche (20) enveloppant les faces périphériques (13, 14) du bloc (10),
des moyens de transmission des efforts (50, 60) configurés pour transmettre et diffuser les efforts générés le passage d'un train, positionnés entre la coque rigide (20) et le bloc (10);
dans lequel le bloc (10), la coque (20), et les moyens de transmission des efforts (50, 60) définissant un volume inoccupé entre la coque (20) et le bloc (10),
la traverse (1) étant caractérisée en ce qu'elle comprend en outre un dispositif de comblement (30) disposé dans le volume inoccupé de sorte que le dispositif de comblement (30) comble au moins partiellement ledit volume inoccupé.

Figure imgaf001
The invention relates to a cross-member (1) of railway, comprising at least one block (10), in particular made of concrete, having
a lower face (11) intended to rest on a support, an upper face (12) intended to receive at least one longitudinal rail (2), and four peripheral faces
the crossbar (1) comprising
a sealed rigid shell (20) enveloping the peripheral faces (13, 14) of the block (10),
transmission means (50, 60) configured to transmit and diffuse the forces generated by the passage of a train, positioned between the rigid shell (20) and the block (10);
wherein the block (10), the shell (20), and the force transmitting means (50, 60) defining an unoccupied volume between the shell (20) and the block (10),
the crossbar (1) being characterized in that it further comprises a filling device (30) arranged in the unoccupied volume so that the filling device (30) fills at least partially said unoccupied volume.
Figure imgaf001

Description

DOMAINE TECHNIQUE GENERALGENERAL TECHNICAL FIELD

L'invention concerne le domaine des traverses de voies de chemins de fer, monobloc ou bi-bloc, devant être coulées dans du béton.
En particulier, l'invention concerne les traverses avec coque rigide.The invention relates to the field of railroad sleepers, monobloc or bi-block, to be cast in concrete.
In particular, the invention relates to sleepers with rigid shell.

ETAT DE L'ARTSTATE OF THE ART

De telles traverses avec coques rigides sont connues ont été décrites en détail dans les document EP0919666 et FR2906269 .
L'utilisation d'une coque rigide étanche disposée autour du bloc en béton a permis d'améliorer l'utilisation des traverses avec chaussons élastiques étanches qui permettaient un remplacement simplifié de la traverse sans devoir fracturer le béton environnant.
Toutefois, bien que la coque rigide ne se déchire pas lors de la manutention (transport, stockage, pose), à l'inverse des chaussons élastiques, elle peut se fracturer ou se fissurer, ce qui lui fait perdre son étanchéité et ses fonctions de maintien du bloc en béton.
En outre, ces coques ne sont pas pratiques pour l'installation du joint d'étanchéité qui doit venir empêcher l'intrusion d'élément étranger entre la coque et le bloc.Such sleepers with rigid hulls are known have been described in detail in the documents EP0919666 and FR2906269 .
The use of a rigid rigid shell around the concrete block has improved the use of ties with waterproof elastic booties that allowed a simplified replacement of the cross without fracturing the surrounding concrete.
However, although the rigid shell does not tear during handling (transport, storage, installation), unlike elastic slippers, it can fracture or crack, which makes it lose its seal and its functions of maintaining the concrete block.
In addition, these shells are not practical for the installation of the seal which must come to prevent the intrusion of foreign element between the shell and the block.

Il existe ainsi un besoin d'amélioration des traverses à coque rigide existante.There is thus a need for improvement of existing rigid hull sleepers.

PRESENTATION DE L'INVENTIONPRESENTATION OF THE INVENTION

A cette fin, l'invention concerne une traverse de chemin de fer, comportant au moins un bloc notamment en béton, présentant

  • une face inférieure destinée à reposer sur un support,
  • une face supérieure destinée à recevoir au moins un rail longitudina, et
  • quatre faces périphériques qui raccordent la face supérieure à la face inférieure et dont chacune comporte une partie inférieure sensiblement plane, à raison de deux faces périphériques longitudinales dont les parties inférieures convergent mutuellement vers le bas et de deux faces périphériques transversales dont les parties inférieures convergent mutuellement vers le bas,
la traverse comprenant
  • une coque rigide étanche enveloppant la face inférieure et les parties inférieures des faces périphériques du bloc,
  • des moyens de transmission des efforts configurés pour transmettre et diffuser les efforts générés le passage d'un train, positionnés entre la coque rigide et le bloc;
  • dans lequel le bloc, la coque, et les moyens de transmission des efforts définissant un volume inoccupé entre la coque et le bloc,
la traverse étant caractérisée en ce qu'elle comprend en outre un dispositif de comblement disposé dans le volume inoccupé, de sorte que le dispositif de comblement comble au moins partiellement ledit volume inoccupé. Le dispositif de comblement peut ainsi être entre la coque rigide étanche et la partie inférieure d'une des faces périphériques, et/ou entre la coque rigide étanche et la face inférieure du bloc.To this end, the invention relates to a railroad tie, comprising at least one block, in particular made of concrete, having
  • a lower face intended to rest on a support,
  • an upper face intended to receive at least one longitudinal rail, and
  • four peripheral faces which connect the upper face to the lower face and each of which comprises a substantially flat lower part, at the rate of two longitudinal peripheral faces, the mutually converging lower parts of the lower and two transverse peripheral faces, the lower parts of which converge mutually down,
the crossing including
  • a rigid rigid shell enveloping the lower face and the lower parts of the peripheral faces of the block,
  • means for transmitting the forces configured to transmit and diffuse the forces generated during the passage of a train, positioned between the rigid shell and the block;
  • wherein the block, the shell, and the force transmission means defining an unoccupied volume between the shell and the block,
the cross member being characterized in that it further comprises a filling device disposed in the unoccupied volume, so that the filling device fills at least partially said unoccupied volume. The filling device can thus be between the sealed rigid shell and the lower part of one of the peripheral faces, and / or between the sealed rigid shell and the lower face of the block.

Grâce à cela, la traverse peut pallier deux difficultés existantes : la fragilité de la coque et la mise en place du joint. En effet, grâce à la présence du dispositif de comblement, d'une les efforts de manutention sont mieux répartis et n'exercent plus de déformation trop importante sur la coque et d'autre part, le dispositif de comblement peut servir de fond de joint, comme cela est expliqué ci-dessous.Thanks to this, the transom can overcome two existing difficulties: the fragility of the hull and the installation of the joint. Indeed, thanks to the presence of the filling device, a handling efforts are better distributed and no longer deform too much on the hull and secondly, the filling device can serve as a bottom seal as explained below.

Dans un mode de réalisation préférentiel, le dispositif de comblement définit un rebord supérieur s'étendant le long de la périphérie du bloc, ledit rebord supérieur étant situé à l'intérieur de la coque rigide. Le dispositif sert alors de fond de joint. Ce mode de réalisation se fait grâce au dispositif de comblement disposé entre la coque rigide étanche et la partie inférieure d'une des faces périphériques.In a preferred embodiment, the filling device defines an upper flange extending along the periphery of the block, said upper flange being located inside the rigid shell. The device then serves as the bottom of the joint. This embodiment is done by means of the filling device disposed between the sealed rigid shell and the lower part of one of the peripheral faces.

La traverse peut alors comprendre en outre un joint d'étanchéité configuré pour assurer l'étanchéité entre le bloc et la coque, ledit joint reposant sur le rebord supérieur du dispositif de comblement, qui fait ainsi office de fond de joint.The crossmember may then further comprise a seal configured to seal between the block and the shell, said seal resting on the upper edge of the filling device, which thus serves as the bottom of the joint.

Dans un mode de réalisation préférentiel, le dispositif de comblement est en matériau absorbeur de choc tel que de la mousse ou du polystyrène.In a preferred embodiment, the filling device is of shock-absorbing material such as foam or polystyrene.

Le matériau du dispositif de comblement a préférablement des propriétés physiques telles qu'il est transparent au regard de la transmission et de l'amortissement des vibrations générées par le passage d'un train ou a des propriétés plastiques de sorte que le dispositif de comblement se déforme de façon définitive dès le passage du premier train.The material of the filling device preferably has physical properties such that it is transparent with respect to the transmission and damping of vibrations generated by the passage of a train or has plastic properties so that the filling device is deforms definitively as soon as the first train passes.

Dans un mode de réalisation particulier, la traverse comprend les caractéristiques suivantes, prises seules ou en combinaison :

  • le dispositif de comblement comprend un élément d'extrémité qui vient en prise avec la partie inférieure de la face périphérique longitudinale et avec la face inférieure du bloc,
  • l'élément d'extrémité comprend des pattes qui s'étendent le long de la partie inférieure de la face périphérique transversale, de sorte que l'élément d'extrémité viennent entourer l'extrémité du bloc.
  • les moyens de transmission des efforts comprennent un segment latéral disposés entre la partie inférieure de la face périphérique longitudinale et la coque, et dans lequel l'élément d'extrémité comprend une ouverture traversante pour le passage dudit segment,
  • le dispositif de comblement comprend un élément central qui vient en prise avec la partie inférieure de la face périphérique transversale et avec la face inférieure du bloc,
  • l'élément central entoure le bloc au niveau des parties inférieures des deux faces périphériques transversales et de la face inférieure,
  • les moyens de transmission des efforts comprennent un segment disposés entre la partie inférieure de la face périphérique transversale et la coque, l'élément central comprend deux encoches, en regard de la partie inférieure de la face périphérique transversale pour permettre la mise en place de segments.
In a particular embodiment, the cross member comprises the following features, taken alone or in combination:
  • the filling device comprises an end element which engages with the lower part of the longitudinal peripheral face and with the lower face of the block,
  • the end member comprises lugs which extend along the lower portion of the transverse peripheral face, so that the end member surrounds the end of the block.
  • the force transmission means comprise a lateral segment disposed between the lower part of the longitudinal peripheral face and the shell, and in which the end element comprises a through opening for the passage of said segment,
  • the filling device comprises a central element which engages with the lower part of the transverse peripheral face and with the lower face of the block,
  • the central element surrounds the block at the lower parts of the two transverse peripheral faces and the lower face,
  • the force transmission means comprise a segment disposed between the lower part of the transverse peripheral face and the shell, the central element comprises two notches, facing the lower part of the transverse peripheral face to allow the introduction of segments. .

Dans un mode de réalisation, la coque rigide comprend localement, notamment au niveau des segments, un rebord supérieur évasé et le rebord supérieur du dispositif de comblement présente localement un élargissement qui vient en butée sur le rebord supérieur de la coque rigide.In one embodiment, the rigid shell locally comprises, in particular at the segments, a flared top flange and the top flange of the filling device locally has an enlargement which abuts on the upper flange of the rigid shell.

Dans un mode de réalisation, le bloc comprend une zone d'attache de rail sur la face supérieure et les moyens de transmission des efforts comprennent en outre une semelle résiliente au contact la face inférieure du bloc, la semelle résiliente étant disposée en regard de la zone d'attache de rail.In one embodiment, the block comprises a rail attachment zone on the upper face and the force transmission means further comprise a resilient sole in contact with the lower face of the block, the resilient soleplate being disposed opposite the rail attachment area.

Dans un mode de réalisation, la semelle résiliente au regard de la face inférieure, la semelle résiliente et le dispositif de comblement sont mis côte à côte, sans empilement.In one embodiment, the resilient sole with respect to the underside, the resilient sole and the filling device are placed side by side, without stacking.

L'invention peut s'appliquer à une traverse monobloc, dans laquelle le dispositif de comblement comprend deux éléments d'extrémités pour chaque extrémité de la traverse monobloc et un élément central situé entre les deux éléments d'extrémités.The invention can be applied to a monobloc cross member, in which the filling device comprises two end elements for each end of the monobloc cross member and a central element located between the two end members.

L'invention peut s'appliquer à une traverse bi-bloc dans laquelle le dispositif de comblement comprend deux éléments d'extrémité pour chacun de deux blocs.The invention can be applied to a bi-block cross-member in which the filling device comprises two end elements for each of two blocks.

Ainsi, dans un aspect, l'invention concerne un dispositif de comblement disposé dans le volume, et qui définit un rebord supérieur s'étendant sur toute la périphérie du bloc, ledit rebord supérieur étant situé à l'intérieur de la coque rigide. Préférablement ce dispositif de comblement occupe alors un maximum de volume inoccupé, notamment en étant positionné entre la coque rigide étanche et la partie inférieure d'une des faces périphériques, et/ou entre la coque rigide étanche et la face inférieure du bloc.Thus, in one aspect, the invention relates to a filling device disposed in the volume, and defining an upper flange extending over the entire periphery of the block, said upper flange being located inside the rigid shell. Preferably this filling device then occupies a maximum of unoccupied volume, in particular by being positioned between the sealed rigid shell and the lower part of one of the peripheral faces, and / or between the sealed rigid shell and the lower face of the block.

Dans un autre aspect, l'invention concerne un dispositif de comblement disposé dans le volume, en étant positionné entre la coque rigide étanche et la partie inférieure d'une des faces périphériques et entre la coque rigide étanche et la face inférieure du bloc, afin de maximiser le volume inoccupé. Préférablement ce dispositif définit alors un rebord supérieur s'étendant sur toute la périphérie du bloc, ledit rebord supérieur étant situé à l'intérieur de la coque rigide.In another aspect, the invention relates to a filling device disposed in the volume, being positioned between the sealed rigid shell and the lower part of one of the peripheral faces and between the sealed rigid shell and the lower face of the block, so to maximize the unoccupied volume. Preferably this device then defines an upper flange extending over the entire periphery of the block, said upper flange being located inside the rigid shell.

PRESENTATION DES FIGURESPRESENTATION OF FIGURES

D'autres caractéristiques, buts et avantages de l'invention ressortiront de la description qui suit, qui est purement illustrative et non limitative, et qui doit être lue en regard des dessins annexés :

  • La figure 1 illustrent une vue éclatée d'une traverse monobloc comprenant un dispositif absorbeur de choc selon une mode de réalisation de l'invention,
  • La figure 2 illustre une vue en coupe dans un plan longitudinal, au niveau des moyens de transmission des efforts,
  • La figure 3 illustre une vue en coupe dans un plan longitudinal entre les deux rails.
Other features, objects and advantages of the invention will emerge from the description which follows, which is purely illustrative and nonlimiting, and which should be read with reference to the appended drawings:
  • The figure 1 illustrate an exploded view of a monobloc cross member comprising a shock absorber device according to one embodiment of the invention,
  • The figure 2 illustrates a sectional view in a longitudinal plane, at the level of the means of transmission of the forces,
  • The figure 3 illustrates a sectional view in a longitudinal plane between the two rails.

DESCRIPTION DETAILLEEDETAILED DESCRIPTION

La description détaillée sera effectuée à la lumière d'une traverse monobloc 1 telle qu'illustrée sur la figure 1 . The detailed description will be made in the light of a monobloc cross-member 1 as illustrated in FIG. figure 1 .

L'invention s'applique d'une façon similaire à une traverse bibloc, formée de deux blocs ou "blochets" en béton armé, raccordés mutuellement par une entretoise rigide, rectiligne, et par exemple constituée par une cornière métallique noyée partiellement dans l'un et l'autre des blocs.The invention applies in a manner similar to a biblock crossbar, formed of two blocks or "blochets" of reinforced concrete, connected to each other by a rigid, straight strut, and for example constituted by a metal angle embedded partially in the one and the other of the blocks.

Chacun des blocs est destiné à porter un rail respectif 2 de la voie ferrée, de façon non détaillée mais connue. Par convention, les rails 2 définissent une référence de longitudinalité.Each of the blocks is intended to carry a respective rail 2 of the railway, in a non-detailed but known manner. By convention, the rails 2 define a longitudinal reference.

Si l'on se réfère à la position d'utilisation de la traverse 1, qui servira de référence pour l'ensemble de cette description, chaque bloc 10 est délimité vers le bas par une face inférieure 11 plane aux tolérances de fabrication près, laquelle face inférieure 11 est destinée à reposer indirectement sur un support constitué par exemple par la face supérieure d'un radier ou d'une dalle. Chaque bloc 10 est délimité vers le haut par une face supérieure 12 servant d'appui, qui comprend une zone d'attache 16 de rail 2, en l'espèce deux zones 16 pour la traverse monobloc.
Chaque bloc 10 comprend quatre faces périphériques 13, 14 (seules deux sont visibles sur les figures) reliant la face supérieure 12 à la face inférieure 11 par l'intermédiaire respectivement d'un arrondi et/ou d'un biseau. Les faces périphériques 13, 14 comprennent deux faces périphériques longitudinales 14 et deux faces périphériques transversales 13. Les faces périphériques 13, 14 comprennent chacune une partie inférieure sensiblement plane 13a, 14a, une partie supérieure sensiblement plane. Les parties supérieures longitudinales et les parties supérieures transversales convergent mutuellement vers le haut. Les parties inférieures longitudinales 14a et les parties inférieures transversales 13a convergent mutuellement vers le bas.Referring to the position of use of the crossbar 1, which will serve as a reference for the whole of this description, each block 10 is delimited downwards by a lower face 11 flat manufacturing tolerances, which bottom face 11 is intended to rest indirectly on a support consisting for example of the upper face of a raft or a slab. Each block 10 is delimited upwards by an upper face 12 serving as support, which comprises a fastening zone 16 of rail 2, in this case two zones 16 for the one-piece cross member.
Each block 10 comprises four peripheral faces 13, 14 (only two are visible in the figures) connecting the upper face 12 to the lower face 11 via respectively a round and / or a bevel. The peripheral faces 13, 14 comprise two longitudinal peripheral faces 14 and two peripheral faces 13. The peripheral faces 13, 14 each comprise a substantially flat bottom portion 13a, 14a, a substantially flat upper portion. The longitudinal upper parts and the transverse upper parts converge mutually upwards. The lower longitudinal portions 14a and the lower transverse portions 13a converge mutually downwards.

La traverse 1 de la figure 1 comprend en outre une coque rigide étanche 20 destiné à recevoir le bloc 10 et des moyens de transmission des efforts 50, 60.The crossing 1 of the figure 1 further comprises a sealed rigid shell 20 for receiving the block 10 and means for transmitting the forces 50, 60.

La coque rigide étanche 20 est connue et ne sera pas détaillée outre mesure. Il s'agit d'une coque semi-ouverte avec une face ouverte, comprenant un fond 21 et des parois latérales périphériques transversales 23 et longitudinales 24.
La coque rigide 20 enveloppe la face inférieure 11 et les parties inférieures 13a, 14a des faces périphériques 13, 14 du bloc 10. Par envelopper, on signifie qu'elle se trouve autour et non pas qu'il y a nécessairement un contact en tout point. Le fond 21 et les parois 23, 24 ont toutes des formes généralement rectangulaires.The sealed rigid shell 20 is known and will not be unduly detailed. It is a semi-open hull with an open face, comprising a bottom 21 and 23 transverse and longitudinal peripheral side walls 24.
The rigid shell 20 surrounds the lower face 11 and the lower parts 13a, 14a of the peripheral faces 13, 14 of the block 10. By wrapping, it means that it is around and not that there is necessarily a contact in all point. The bottom 21 and the walls 23, 24 all have generally rectangular shapes.

Les moyens de transmission des efforts 50, 60 sont quant à eux disposés entre le bloc 10 et la coque rigide étanche 20, en étant en contact avec les deux (au jeu fonctionnel près pour certains éléments pour permettre l'insertion du bloc 10 dans la coque 20). Ils ont pour fonction de transmettre et diffuser les efforts verticaux et horizontaux générés par le passage d'un train, ces vibrations pouvant user et abîmer la voie ferrée. Ces dispositifs peuvent de plus jouer un rôle d'atténuation de vibration en créant un système masse-ressort.
Ces moyens de transmission des efforts 50, 60 sont connus (voir par exemple les deux documents cités en introduction). On définit un volume inoccupé, qui correspond au volume vide entre la coque 20 et le bloc 10, auquel on soustrait les moyens de transmission des efforts 50, 60. En d'autres termes, il s'agit de l'espace réel entre la coque 20 et le bloc 10 avec les moyens de transmission des efforts 50, 60, cet espace étant notamment généré par la présence des moyens de transmission des efforts 50, 60 qui imposent une distance entre le bloc 10 et la coque 20.The force transmission means 50, 60 are themselves arranged between the block 10 and the sealed rigid shell 20, being in contact with the two (to the functional game near for some elements to allow the insertion of the block 10 in the hull 20). Their function is to transmit and diffuse the vertical and horizontal forces generated by the passage of a train, these vibrations being able to wear and damage the railway. These devices can also play a role of vibration mitigation by creating a mass-spring system.
These means for transmitting the forces 50, 60 are known (see for example the two documents cited in the introduction). An unoccupied volume is defined, which corresponds to the empty volume between the shell 20 and the block 10, to which the means for transmitting the forces 50 are subtracted, 60. In other words, it is the real space between the shell 20 and the block 10 with the force transmission means 50, 60, this space being generated in particular by the presence of the force transmission means 50, 60 which impose a distance between the block 10 and the shell 20.

Lesdits moyens 50, 60 peuvent comprendre une semelle 50, disposée sous la face inférieure 11 du bloc 10 et en particulier en regard des zones d'attache 16, car les efforts sont essentiellement transmis à ce niveau-là. La semelle 50 s'étend en général sur toute la largeur de la face inférieure 11, ou sur quasiment toute la largeur (à environ 1 cm près). Cette semelle 50 est connue et ne sera pas détaillée.Said means 50, 60 may comprise a sole 50 disposed under the lower face 11 of the block 10 and in particular facing the attachment zones 16, because the forces are essentially transmitted at this level. The sole 50 extends in general over the entire width of the lower face 11, or almost the entire width (to about 1 cm). This sole 50 is known and will not be detailed.

Lesdits moyens 50, 60 peuvent comprendre des segments 60, aussi appelée secteurs latéraux car ils sont généralement disposés sur les parties inférieurs 13a, 14a des faces périphériques 13, 14 du bloc 10. On dénombre en général un segment 60 sur chaque face périphérique longitudinale 14 et deux segments sur chaque face périphérique transversale 13. Le segment 60 de la face périphérique longitudinale 14 peut quasiment faire la largeur de ladite face 14.Said means 50, 60 may comprise segments 60, also called lateral sectors because they are generally arranged on the lower portions 13a, 14a of the peripheral faces 13, 14 of the block 10. There is generally a segment 60 on each longitudinal peripheral face 14 and two segments on each transverse peripheral face 13. The segment 60 of the longitudinal peripheral face 14 can almost make the width of said face 14.

Les moyens de transmission des efforts 50, 60 sont composés d'un matériau résilient adapté pour diffuser les charges d'un train (voir par exemple le document FR2906269 cité en introduction).The force transmission means 50, 60 consist of a resilient material adapted to diffuse the loads of a train (see for example the document FR2906269 cited in introduction).

Du fait de la présence de ces moyens de transmission des efforts 50, 60 qui sont situés entre la coque 20 et le bloc 10, il existe un ou des volumes inoccupés entre la coque 20 et le bloc 10.Due to the presence of these force transmission means 50, 60 which are located between the shell 20 and the block 10, there is one or more unoccupied volumes between the shell 20 and the block 10.

Le Demandeur s'est aperçu que ce volume générait deux difficultés : la première est liée à la fragilité de la coque 20 lors de la manutention (transport, stockage et pose), et la deuxième est liée à la mise en place d'un joint d'étanchéité 40 entre le bloc 10 et la coque 20, au niveau de la face ouverte de la coque 20. En effet, le volume inoccupé autorise la déformation de la coque 20 qui peut alors casser si celle-ci reprend un choc, et ce volume inoccupé n'est pas commode pour poser le joint d'étanchéité 40.The Applicant has found that this volume generated two difficulties: the first is related to the fragility of the hull 20 during handling (transport, storage and installation), and the second is related to the establishment of a seal 40 between the block 10 and the shell 20, at the level of the open face of the shell 20. In fact, the unoccupied volume allows the deformation of the shell 20 which can then break if it resumed shock, and this unoccupied volume is not convenient to install the seal 40 .

Pour pallier à la première difficulté, la traverse 1 comprend un dispositif de comblement 30 situé dans les volumes inoccupés précités, visant à les combler au moins partiellement. En particulier, le dispositif de comblement 30 est situé entre la coque 20 et les faces latérales 13, 14, ou entre la coque 20 et la face inférieure 11 et préférablement les deux à la fois.
Par conséquent, le long d'une face périphérique 13, 14, ou le long de la face inférieure 11, on aura, entre la coque 20 et le bloc 10, des moyens de transmission des efforts 50, 60 et le dispositif de comblement 30 côte à côte, sans superposition.To overcome the first difficulty, the cross 1 comprises a filling device 30 located in the aforementioned unoccupied volumes, to at least partially fill them. In particular, the filling device 30 is located between the shell 20 and the side faces 13, 14, or between the shell 20 and the lower face 11 and preferably both at the same time.
Therefore, along a peripheral face 13, 14, or along the lower face 11, there will be, between the shell 20 and the block 10, the force transmission means 50, 60 and the filling device 30 side by side, without overlapping.

Ainsi, le dispositif de comblement 30 permet ainsi d'éviter la présence de volume vide qui fragilise la coque 20 lors de la manutention de la traverse 1. En effectuant un travail de reprise d'effort, il est par exemple possible de transporter la traverse avec des fourches qui ne soient pas situés en regard des semelles 50. Lorsque le dispositif de comblement 30 vise à éviter de casser la coque 20, il est préférable qu'il comble le maximum de volume inoccupé.Thus, the filling device 30 thus makes it possible to avoid the presence of an empty volume which weakens the hull 20 during the handling of the cross-member 1. By carrying out a force-recovery work, it is for example possible to transport the cross-member with forks that are not located next to the soles 50. When the filling device 30 is intended to avoid breaking the shell 20, it is preferable that it fills the maximum unoccupied volume.

Complémentairement ou alternativement, pour pallier à la deuxième difficulté et faciliter la mise en place du joint 40, le dispositif de comblement 30 comprend un rebord 32 qui s'étend sur toute la périphérie du bloc 10 (ou quasiment toute la périphérie : on comprend que plus le rebord est continu et suit la périphérie, plus la pose du joint sera simplifiée) sur lequel se pose le joint 40 (voir figures 2 et 3 ). Ce rebord 32 court donc le long des faces périphériques 13, 14 du bloc 10 (sans nécessairement être en contact avec, même si pour faciliter la pose du joint 40 un contact est avantageux). Ce rebord 32 n'arrive pas au niveau de la face ouverte de la coque 20, mais est légèrement en retrait, de l'ordre d'un ou quelques centimètres. Lorsque le dispositif de comblement 30 vise à permettre la mise en place du joint, il n'est pas nécessaire qu'il comble un maximum de volume inoccupé. Par conséquent, il n'est pas nécessaire qu'il y en ait sous la face inférieure 11 du bloc 10.Complementarily or alternatively, to overcome the second difficulty and facilitate the establishment of the seal 40, the filling device 30 comprises a flange 32 which extends over the entire periphery of the block 10 (or almost the entire periphery: it is understood that the more the flange is continuous and follows the periphery, the more the laying of the joint will be simplified) on which the seal 40 (see Figures 2 and 3 ). This flange 32 thus runs along the peripheral faces 13, 14 of the block 10 (without necessarily being in contact with it, even if to facilitate the installation of the seal 40 a contact is advantageous). This flange 32 does not arrive at the open face of the shell 20, but is slightly set back, of the order of one or a few centimeters. When the filling device 30 is intended to allow the establishment of the seal, it is not necessary that it fills a maximum of unoccupied volume. Therefore, it is not necessary that there be under the lower face 11 of the block 10.

Ainsi, on dispose d'un fond de joint sur lequel le joint 40 peut s'appuyer, ce qui assure une mise en place efficace et fiable. Comme le rebord 32 n'arrive pas à niveau, le joint 40 prend aussi appui sur les faces latérale 23, 24 de la coque 20.
La coque 20 peut comprendre localement un rebord périphérique évasé 22 (en particulier au niveau des secteurs latéraux 60). Dans ce cas, le rebord 32 du dispositif de comblement 30 présente localement un élargissement 34, de sorte qu'il puisse prendre appui sur le rebord périphérique évasé 22 de la coque 20 (voir figure 2 ).Thus, there is a bottom joint on which the seal 40 can be supported, which ensures an efficient and reliable implementation. As the rim 32 does not reach level, the seal 40 also bears on the lateral faces 23, 24 of the shell 20.
The shell 20 may locally comprise a flared peripheral flange 22 (in particular at the side sectors 60). In this case, the edge 32 of the filling device 30 locally has an enlargement 34, so that it can bear against the flared peripheral rim 22 of the shell 20 (see FIG. figure 2 ).

Lorsque le joint 40 est installé, la traverse 1 est étanchéifiée et aucun élément étranger ne peut venir dans la coque 20.When the seal 40 is installed, the cross member 1 is sealed and no foreign element can come into the shell 20.

Le dispositif de comblement 30 est typiquement fait en mousse ou en polystyrène. Le dispositif de comblement 30 a uniquement pour but de faciliter la manutention de la traverse et la pose de la traverse, notamment pour le joint 40. Le dispositif de comblement 30, par son matériau, ne présente aucun avantage (ni aucun inconvénient, c'est-à-dire qu'il n'agit pas comme un pont vibratoire) en ce qui concerne l'atténuation des vibrations générées par un train. Cela se traduit en matière de caractéristiques physiques par une résistance à la déformation élastique largement inférieure comparativement aux moyens de transmissions des efforts 50, 60 (par exemple la mousse) ou par une résistance à la déformation plastique largement inférieure comparativement aux moyens de transmission des efforts 50, 60 (pour lesquels le seuil de déformation plastique n'est normalement jamais atteint). Par largement inférieure, on entend négligeable d'un point de vue physique.The filling device 30 is typically made of foam or polystyrene. The filling device 30 is only intended to facilitate the handling of the cross member and the installation of the cross member, in particular for the seal 40. The filling device 30, by its material, has no advantage (nor any disadvantage, it can not be avoided). that is, it does not act as a vibratory bridge) as regards the attenuation of the vibrations generated by a train. This is reflected in terms of physical characteristics by a resistance to elastic deformation significantly lower compared to the transmission means of the forces 50, 60 (for example the foam) or by a resistance to plastic deformation significantly lower compared to the means of transmission of the forces 50, 60 (for which the plastic deformation threshold is normally never achieved). By far inferior is meant negligible from a physical point of view.

En particulier, après le passage du premier train, le bloc 10 va bouger verticalement et latéralement dans la coque 20 et va écraser le dispositif de comblement 30, qui par déformation plastique, va se déformer de façon permanente. Une fois le train passé, la traverse retrouve sensiblement sa position d'origine, du fait notamment de la résilience des moyens de transmission des efforts 50, 60, de sorte que le dispositif de comblement 30 n'est plus en contact avec le bloc 10.In particular, after the passage of the first train, the block 10 will move vertically and laterally in the shell 20 and will crush the filling device 30, which by plastic deformation, will deform permanently. Once the train has passed, the cross member substantially returns to its original position, due in particular to the resilience of the force transmission means 50, 60, so that the filling device 30 is no longer in contact with the block 10 .

Alternativement, si le dispositif de comblement 30 est très élastique, il va se comprimer et retrouver sa forme. Du fait de sa forte élasticité, il est structurellement transparent en ce qui concerne les transmissions entre le bloc 10 et la coque 20, c'est-à-dire notamment qu'il ne fonctionne pas comme un pont de vibration.Alternatively, if the filling device 30 is very elastic, it will compress and regain its shape. Because of its high elasticity, it is structurally transparent as regards the transmissions between the block 10 and the shell 20, that is to say in particular that it does not function as a vibration bridge.

Grâce à la mousse ou au polystyrène, le dispositif de comblement 30 peut ainsi absorber des chocs et fonctionner comme un dispositif absorbeur de choc. Il agit comme une protection en encaissant des coups et en limitant les déformations de la coque.With the foam or polystyrene, the filling device 30 can thus absorb shocks and operate as a shock absorber device. It acts as a protection by concealing shots and limiting the deformations of the hull.

A présent, en référence à la figure 1 à nouveau, un mode de réalisation particulier de la structure du dispositif de comblement 30 va être décrit.Now, with reference to figure 1 again, a particular embodiment of the structure of the filling device 30 will be described.

Le dispositif de comblement 30 comprend un élément d'extrémité 310 configuré pour venir en prise avec la partie inférieure 14a de la face périphérique longitudinale 14 et avec la face inférieure 11 du bloc 10. Cet élément d'extrémité 310 est formé d'une seule pièce. On lui définit une face extrémale 314, deux pattes latérales 312 qui s'étendent depuis la face extrémale 314 et une face de fond 313, qui s'étend sensiblement perpendiculairement à la face extrémale 314 et aux pattes latérales 312. La face extrémale est en regard de la face latérale longitudinale 14 du bloc 10 ; les pattes latérales 312 sont en regard, respectivement, des deux faces transversales 13 du bloc 20 ; la face de fond 313 est en regard de la face inférieure du bloc 11, mais pas en regard de la semelle 50.
Préférablement, la face de fond 313 vient au plus près de la semelle 50, sans qu'il y ait de superposition.
La face extrémale 314 comprend un ouverture traversante 316 pour un segment 60. En effet, on rappelle ici que le segment 60, qui est un moyen de transmission des efforts, doit être en contact avec le bloc 10 et la coque rigide 20, au jeu fonctionnel près. Par conséquent, la partie d'extrémité 310 vient combler la quasi intégralité du volume inoccupé au niveau de l'extrémité du bloc 10.
Les pattes latérales 312 ont une forme adaptée au segment 60 qui se trouvent sur les faces latérales transversales 13a du bloc 10. Ainsi, on observe une encoche 318 dans les pattes latérales 312 pour permettre le passage du segment 60.
La face extrémale 314 et les pattes latérales 312 définissent une partie du rebord périphérique 32. Cela signifie qu'elles sont à niveau.The filling device 30 comprises an end element 310 configured to engage with the lower portion 14a of the longitudinal peripheral face 14 and with the lower face 11 of the block 10. This end element 310 is formed of a single piece. It defines an end face 314, two lateral tabs 312 which extend from the end face 314 and a bottom face 313, which extends substantially perpendicular to the end face 314 and the side tabs 312. The end face is in view of the longitudinal side face 14 of the block 10; the lateral lugs 312 are facing, respectively, the two transverse faces 13 of the block 20; the bottom face 313 is facing the lower face of the block 11, but not facing the sole 50.
Preferably, the bottom face 313 comes closest to the sole 50, without there being any superposition.
The end face 314 comprises a through opening 316 for a segment 60. Indeed, it is recalled here that the segment 60, which is a force transmission means, must be in contact with the block 10 and the rigid shell 20, at play. functional near. Therefore, the end portion 310 fills almost the entire unoccupied volume at the end of the block 10.
The lateral lugs 312 have a shape adapted to the segment 60 which are on the transverse lateral faces 13a of the block 10. Thus, a notch 318 is observed in the lateral lugs 312 to allow the passage of the segment 60.
The end face 314 and the side tabs 312 define a portion of the peripheral flange 32. This means that they are level.

Le dispositif de comblement 30 comprend aussi un élément central 320 configuré pour venir en prise avec la face inférieure 11 et les faces latérales transversale 13 du bloc 10. Cet élément central 320 est formé d'une seule pièce ou de deux pièces pour éviter de manipuler des pièces trop longues. On lui définit une paroi de fond 323 et deux parois latérales 322 qui s'étendent depuis la paroi de fond 323. La paroi de fond 323 est en regard de la face inférieure du bloc 11, mais pas en regard de la semelle 50 ; les deux parois latérales 322 sont en regard, respectivement, des deux faces transversales 13 du bloc 20.
Préférablement, la face de fond 323 vient toucher la semelle 50, sans qu'il y ait de superposition. En particulier, la face de fond 323 vient toucher les deux semelles, de part et d'autre.The filling device 30 also comprises a central element 320 configured to engage the lower face 11 and the transverse side faces 13 of the block 10. This central element 320 is formed of a single piece or two pieces to avoid handling. parts too long. It defines a bottom wall 323 and two side walls 322 which extend from the bottom wall 323. The bottom wall 323 is opposite the lower face of the block 11, but not facing the flange 50; the two side walls 322 are opposite, respectively, of the two transverse faces 13 of the block 20.
Preferably, the bottom face 323 touches the sole 50, without there being any superposition. In particular, the bottom face 323 touches the two flanges, on both sides.

Les parois latérales 322 ont une forme adaptée aux segments 60 qui se trouvent sur les faces latérales transversales 13a du bloc 10. Ainsi, on observe des encoches 326 pour permettre le passage du segment 60. Les parois latérales 322 définissent une partie du rebord périphérique 32. Cela signifie qu'elles sont à niveau avec les pattes latérales 312.
En particulier, les pattes latérales 312 et les parois latérales 322, du fait de leur encoches respectives 318, 326 se rejoignent au-dessus du segment 60 qu'elles enjambent. Cela permet d'assurer la continuité du rebord 32.
Dans ce mode de réalisation et dans le cas d'une traverse monobloc, au niveau de la face inférieure 11 du bloc 10, on observe successivement selon la direction transversale, et sans superposition : une face de fond 313, une semelle 50, une paroi de fond 313, une semelle 50 et une face de fond 313.
Dans ce mode de réalisation, au niveau de la face latéral transversale 14 du bloc 10, on observe successivement selon la direction transversale, et sans superposition : une patte latérale 312, un segment 60 (en fonction de la hauteur de la direction selon laquelle on observe la traverse), une paroi latérale 322, un segment 60 (idem), une patte latérale 312.
On s'aperçoit ainsi que la plupart du volume inoccupé a bien été rempli avec du dispositif de comblement 30.
En outre, le dispositif de comblement 30 définit bien un rebord périphérique 32 qui est continu et à niveau, ce qui permet aisément la mise en place du joint 40.The side walls 322 have a shape adapted to the segments 60 which are on the transverse side faces 13a of the block 10. Thus, notches 326 are observed to allow the passage of the segment 60. The side walls 322 define a portion of the peripheral rim 32 This means that they are level with the side tabs 312.
In particular, the side tabs 312 and the side walls 322, due to their respective notches 318, 326 meet above the segment 60 they straddle. This ensures the continuity of the flange 32.
In this embodiment and in the case of a monobloc cross member, at the lower face 11 of the block 10, one can observe successively in the transverse direction, and without superposition: a bottom face 313, a sole 50, a wall bottom 313, a sole 50 and a bottom face 313.
In this embodiment, at the level of the transverse side face 14 of the block 10, successively in the transverse direction, and without superposition: a lateral leg 312, a segment 60 (as a function of the height of the direction according to which one observe the crossbar), a side wall 322, a segment 60 (idem), a side tab 312.
It can thus be seen that most of the unoccupied volume has been filled with filling device 30.
In addition, the filling device 30 defines a peripheral flange 32 which is continuous and level, which makes it easy to set up the seal 40.

Dans le cas d'une traverse bi-bloc, comme une seule semelle est prévue, le dispositif de comblement 30 peut comprendre uniquement deux éléments d'extrémité, qui se rejoignent pour former le rebord périphérique 32.In the case of a bi-block cross member, as only one sole is provided, the filling device 30 may comprise only two end members, which join to form the peripheral flange 32.

Le dispositif de comblement 30 peut être réalisé avec davantage de pièces différentes. Il est en revanche important qu'il occupe le maximum de volume inoccupé possible et qu'il permette la réalisation du rebord 32. Enfin, il ne doit pas s'interposer entre d'une part les moyens de transmission des efforts 50, 60 et d'autre part la bloc 10 ou la coque 20.The filling device 30 can be made with more different parts. It is however important that it occupies the maximum of unoccupied volume possible and that it allows the realization of the flange 32. Finally, it must not be interposed between on the one hand the force transmission means 50, 60 and on the other hand the block 10 or the shell 20 .

La traverse 1 est fabriquée en usine puis livrée avec la coque 20. La traverse est ensuite coulée dans du béton B selon des méthodes connues (voir figures 2 et 3 ). Le dispositif de comblement 30 n'est pas retiré lors de la pose. On considère que, du fait de ses propriétés spécifiques, il n'a pas d'influence sur la réaction de la traverse en utilisation.The crossbar 1 is manufactured in the factory and then delivered with the shell 20. The crossbar is then cast in concrete B according to known methods (see Figures 2 and 3 ). The filling device 30 is not removed during installation. Due to its specific properties, it is considered that it has no influence on the reaction of the cross member in use.

Claims (15)

Traverse (1) de chemin de fer, comportant au moins un bloc (10) notamment en béton, présentant une face inférieure (11) destinée à reposer sur un support, une face supérieure (12) destinée à recevoir au moins un rail longitudinal (2), et quatre faces périphériques (13, 14) qui raccordent la face supérieure (12) à la face inférieure (11) et dont chacune comporte une partie inférieure sensiblement plane (13a, 14a), à raison de deux faces périphériques longitudinales (14) dont les parties inférieures convergent mutuellement vers le bas et de deux faces périphériques transversales (13) dont les parties inférieures convergent mutuellement vers le bas, la traverse (1) comprenant une coque rigide étanche (20) enveloppant la face inférieure (11) et les parties inférieures (13a, 14a) des faces périphériques (13, 14) du bloc (10), des moyens de transmission des efforts (50, 60) configurés pour transmettre et diffuser les efforts générés le passage d'un train, positionnés entre la coque rigide (20) et le bloc (10), dans lequel le bloc (10), la coque (20), et les moyens de transmission des efforts (50, 60) définissant un volume inoccupé entre la coque (20) et le bloc (10), la traverse (1) étant caractérisée en ce qu'elle comprend en outre un dispositif de comblement (30) disposé dans le volume inoccupé, entre la coque rigide étanche (20) et la partie inférieure (13a, 14a) d'une des faces périphériques (13, 14), et/ou la coque rigide étanche (20) et la face inférieure (11) du bloc (10), de sorte que le dispositif de comblement (30) comble au moins partiellement ledit volume inoccupé. Traverse (1) of railway, comprising at least one block (10) in particular of concrete, presenting a lower face (11) intended to rest on a support, an upper face (12) for receiving at least one longitudinal rail (2), and four peripheral faces (13, 14) which connect the upper face (12) to the lower face (11) and each of which comprises a substantially flat bottom portion (13a, 14a), at the rate of two longitudinal peripheral faces (14) whose lower portions converging mutually downwards and two transverse peripheral faces (13) whose lower parts mutually converge downwards, the crossbar (1) comprising a sealed rigid shell (20) enclosing the lower face (11) and the lower portions (13a, 14a) of the peripheral faces (13, 14) of the block (10), force transmission means (50, 60) configured to transmit and diffuse the forces generated by the passage of a train, positioned between the rigid shell (20) and the block (10), wherein the block (10), the shell (20), and the force transmitting means (50, 60) defining an unoccupied volume between the shell (20) and the block (10), the cross member (1) being characterized in that it further comprises a filling device (30) arranged in the unoccupied volume, between the sealed rigid shell (20) and the lower part (13a, 14a) of one of the peripheral faces (13, 14), and / or the sealed rigid shell (20) and the lower face (11) of the block (10), so that the filling device (30) at least partially fills said unoccupied volume. Traverse (1) selon la revendication 1, dans laquelle le dispositif de comblement (30) est en matériau absorbeur de choc tel que de la mousse ou du polystyrène.Cross member (1) according to claim 1, wherein the filling device (30) is of shock-absorbing material such as foam or polystyrene. Traverse (1) selon la revendication 1 ou 2, dans laquelle le dispositif de comblement (30) a des propriétés physiques telles qu'il est transparent au regard de la transmission et de l'amortissement des vibrations générées par le passage d'un train ou a des propriétés plastiques de sorte que le dispositif de comblement (30) se déforme de façon définitive dès le passage du premier train.Traverse (1) according to claim 1 or 2, wherein the filling device (30) has physical properties such that it is transparent with respect to the transmission and damping of vibrations generated by the passage of a train or has plastic properties so that the filling device (30) deforms definitively as soon as the first train passes. Traverse (1) selon l'une quelconque des revendications précédentes, dans laquelle le dispositif de comblement (30) définit un rebord supérieur (32) s'étendant le long de la périphérie du bloc (10), ledit rebord supérieur (32) étant situé à l'intérieur de la coque rigide (20).A cross member (1) according to any one of the preceding claims, wherein the filling device (30) defines an upper flange (32) extending along the periphery of the block (10), said upper flange (32) being located inside the rigid shell (20). Traverse (1) selon l'une quelconque des revendications précédentes, dans laquelle le dispositif de comblement (30) comprend un élément d'extrémité (310) qui vient en prise avec la partie inférieure (14a) de la face périphérique longitudinale (14) et avec la face inférieure (11) du bloc (10).A cross member (1) according to any one of the preceding claims, wherein the filling device (30) comprises an end member (310) which engages the lower portion (14a) of the longitudinal peripheral face (14). and with the lower face (11) of the block (10). Traverse (1) selon la revendication 5, dans laquelle l'élément d'extrémité (310) comprend des pattes (312) qui s'étendent le long de la partie inférieure (13a) de la face périphérique transversale (13), de sorte que l'élément d'extrémité (310) viennent entourer l'extrémité du bloc (10).The cross member (1) according to claim 5, wherein the end member (310) comprises tabs (312) extending along the lower portion (13a) of the transverse peripheral face (13), so that the end element (310) surround the end of the block (10). Traverse (1) selon la revendication 5 ou 6, dans laquelle les moyens de transmission des efforts (50, 60) comprennent un segment latéral (60) disposés entre la partie inférieure (14a) de la face périphérique longitudinale (14) et la coque (20), et dans lequel l'élément d'extrémité (310) comprend une ouverture traversante (316) pour le passage dudit segment (60).Traverse (1) according to claim 5 or 6, wherein the force transmission means (50, 60) comprise a lateral segment (60) arranged between the lower portion (14a) of the longitudinal peripheral face (14) and the hull (20), and wherein the end member (310) includes a through opening (316) for passage of said segment (60). Traverse (1) selon l'une quelconque des revendications 1 à 7, dans laquelle le dispositif de comblement (30) comprend un élément central (320) qui vient en prise avec la partie inférieure (13a) de la face périphérique transversale (13) et avec la face inférieure (11) du bloc (10).Traverse (1) according to any one of claims 1 to 7, wherein the filling device (30) comprises a central element (320) which engages with the lower part (13a) of the transverse peripheral face (13). and with the lower face (11) of the block (10). Traverse (1) selon la revendication 8, dans lequel l'élément central (310) entoure le bloc (10) au niveau des parties inférieures (13a) des deux faces périphériques transversales (13) et de la face inférieure (11).Traverse (1) according to claim 8, wherein the central element (310) surrounds the block (10) at the lower portions (13a) of the two transverse peripheral faces (13) and the lower face (11). Traverse (1) selon la revendication 8 ou 9, dans laquelle les moyens de transmission des efforts (50, 60) comprennent un segment (60) disposés entre la partie inférieure (14a) de la face périphérique transversale (14) et la coque (20), l'élément central (310) comprend deux encoches (322), en regard de la partie inférieure (13a) de la face périphérique transversale (13) pour permettre la mise en place de segments.Cross member (1) according to claim 8 or 9, wherein the force transmission means (50, 60) comprise a segment (60) arranged between the lower part (14a) of the transverse peripheral face (14) and the shell ( 20), the central element (310) comprises two notches (322), facing the lower part (13a) of the transverse peripheral face (13) to allow the introduction of segments. Traverse (1) selon l'une quelconque des revendications 4 à 10 comprenant en outre un joint d'étanchéité (40) configuré pour assurer l'étanchéité entre le bloc (10) et la coque (20), ledit joint reposant sur le rebord supérieur (32) du dispositif de comblement (30), qui fait ainsi office de fond de joint.The cross member (1) according to any one of claims 4 to 10 further comprising a seal (40) configured to seal between the block (10) and the shell (20), said seal resting on the rim upper (32) of the filling device (30), which thus serves as the bottom of the joint. Traverse (1) selon l'une quelconque des revendications 1 à 10 dans lequel le bloc (10) comprend une zone d'attache (16) de rail (2) sur la face supérieure (12) et dans lequel les moyens de transmission des efforts comprennent en outre une semelle résiliente (50) au contact la face inférieure (11) du bloc (10), la semelle résiliente (50) étant disposée en regard de la zone d'attache de rail (16).Traverse (1) according to any one of claims 1 to 10 wherein the block (10) comprises a fastening region (16) rail (2) on the upper face (12) and wherein the transmission means of the efforts further comprise a resilient sole (50) in contact with the lower face (11) of the block (10), the resilient sole (50) being disposed facing the rail attachment zone (16). Traverse (1) selon la revendication 12 dans lequel, au regard de la face inférieure (11), la semelle résiliente (50) et le dispositif de comblement (30) sont mis côte à côte, sans empilement.Traverse (1) according to claim 12 wherein, with respect to the underside (11), the resilient sole (50) and the filling device (30) are placed side by side without stacking. Traverse monobloc selon l'une quelconque des revendications précédentes en combinaison avec les revendications 5 et 8, dans laquelle le dispositif de comblement (30) comprend deux éléments d'extrémités (310) pour chaque extrémité de la traverse monobloc et un élément central (320) situé entre les deux éléments d'extrémités (310).A one-piece cross member as claimed in any one of the preceding claims in combination with claims 5 and 8, wherein the filler (30) comprises two end members (310) for each end of the one-piece cross member and a central member (320). ) located between the two end members (310). Traverse bi-bloc selon l'une quelconque des revendications précédentes en combinaison avec la revendication 5, dans laquelle le dispositif de comblement (30) comprend deux éléments d'extrémité (310) pour chacun de deux blocs.A bi-block crossbar as claimed in any preceding claim in combination with claim 5, wherein the filler (30) comprises two end members (310) for each of two blocks.
EP18176624.7A 2017-06-07 2018-06-07 Sleeper with rigid shell for railway track Active EP3460124B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1755076A FR3067369B1 (en) 2017-06-07 2017-06-07 IMPROVED RIGID HULL TRAVERSE FOR RAILWAY

Publications (2)

Publication Number Publication Date
EP3460124A1 true EP3460124A1 (en) 2019-03-27
EP3460124B1 EP3460124B1 (en) 2021-03-31

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EP (1) EP3460124B1 (en)
ES (1) ES2876442T3 (en)
FR (1) FR3067369B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4489884A (en) * 1980-10-10 1984-12-25 Stedef S.A. Railroad tie cover
FR2840330A1 (en) * 2002-05-30 2003-12-05 Vagneux Traverses Beton Cast concrete railway sleeper is embedded within a sealing hull, with a synthetic rubber poured along the tongues at the upper edge of the hull and over the joint at the interior zone of the block to prevent water penetration
FR2906269A1 (en) * 2006-09-22 2008-03-28 Alstom Transport Sa Railway sleeper for railway track section in e.g. tunnel, has rigid concrete block with specific weight, and resilient tie plate arranged between lower surface of block and base of shoe, where tie plate has specific dynamic stiffness

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4489884A (en) * 1980-10-10 1984-12-25 Stedef S.A. Railroad tie cover
FR2840330A1 (en) * 2002-05-30 2003-12-05 Vagneux Traverses Beton Cast concrete railway sleeper is embedded within a sealing hull, with a synthetic rubber poured along the tongues at the upper edge of the hull and over the joint at the interior zone of the block to prevent water penetration
FR2906269A1 (en) * 2006-09-22 2008-03-28 Alstom Transport Sa Railway sleeper for railway track section in e.g. tunnel, has rigid concrete block with specific weight, and resilient tie plate arranged between lower surface of block and base of shoe, where tie plate has specific dynamic stiffness

Also Published As

Publication number Publication date
ES2876442T3 (en) 2021-11-12
EP3460124B1 (en) 2021-03-31
FR3067369A1 (en) 2018-12-14
FR3067369B1 (en) 2019-08-09

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