EP4189163A1 - Pont pour véhicule ferroviaire et procédé de montage d'un poutre de pont sur un tel pont - Google Patents
Pont pour véhicule ferroviaire et procédé de montage d'un poutre de pont sur un tel pontInfo
- Publication number
- EP4189163A1 EP4189163A1 EP21749227.1A EP21749227A EP4189163A1 EP 4189163 A1 EP4189163 A1 EP 4189163A1 EP 21749227 A EP21749227 A EP 21749227A EP 4189163 A1 EP4189163 A1 EP 4189163A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bridge
- height
- bridge beam
- height adjustment
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
- E01B2/003—Arrangement of tracks on bridges or in tunnels
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/44—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from other materials only if the material is essential
Definitions
- Bridge for a railway vehicle and method of mounting a bridge beam on such a bridge
- the invention relates to a bridge for a rail vehicle, with a track formed from two parallel rails, intended for the rail vehicle to drive on, and with a bridge beam, which carries the rails of the track and is aligned transversely to a supporting profile of the bridge, the bridge beam crossing a height adjustment element arranged between the support profile and the bridge beam is supported and wherein at least one fastening device is provided, by means of which the position of the bridge beam is fixed in relation to the height adjustment element.
- the invention relates to a method for installing a bridge beam on a support profile of a bridge for a rail vehicle, with the proviso that the upper side of the bridge beam is at a certain absolute target height in the fully assembled state.
- the rails of tracks for rail vehicles are fastened to sleepers, which are aligned transversely to the longitudinal direction of the rails and are supported in the ballast bed or on a solid base.
- sleepers are usually made of wood, plastic, concrete or steel.
- bridge beams Since the components carrying the respective track, which correspond in their function to the usual sleepers in the track superstructure, on bridges that are made of steel profiles, are called "bridge beams". Because, unlike the sleepers that are usually supported over their entire length, they freely bridge the distance between two support profiles that absorb the weight of the track and the rail vehicle driving over them.
- bridge beams are also subject to a certain amount of wear. Because of this, the bridge beams have to be renewed at certain intervals, which can be up to 20 years. However, since not only the bridge beams themselves wear out, but also the bridge as a whole, its supporting profiles or the components supporting the supporting profiles can deform over such a long service life, each individual bridge beam on the bridge that is to be replaced must be measured for the replacement, to capture its current status.
- a blank beam that is available and usually made of pretreated wood is then machined in such a way that its dimensions are exactly adapted to the nominal dimensions of the beam to be replaced, so that the replacement beam is placed in the place of the beam to be replaced and ensures optimal horizontal alignment of the rails supported by the beam.
- the horizontality of the bridge can only be reliably compensated for by examining and adjusting each individual bridge beam individually.
- the processing of the beam blank usually takes place on the construction site, because experience has shown that this is the only way that measurement errors or fitting inaccuracies determined on site at the time of assembly can be taken into account during processing and, accordingly, double work can be avoided, which would otherwise be necessary for pre-processing in the Manufacturing plant and would be required for the regularly unavoidable post-processing on the construction site.
- bridge beams designed as a double-T steel profile has been proposed as an alternative to the use of bridge beams made of wood.
- Such a bridge beam is fastened to the respective girder of the bridge, which is also designed as a double-T profile, by means of a stop bar which is arranged on the upper flange of the girder and runs parallel to the bridge girder, via which the horizontal position of the bridge girder is fixed by means of suitable fasteners.
- further fastening means are provided, which are used to fix the bridge beam in the vertical direction on the carrier.
- the distance between the bridge beam and the carrier profile can be adjusted by one or more plates which, if necessary, are arranged as a stack between the bridge beam and the support profile and protrude laterally at least beyond the lower chord of the bridge beam or the upper chord of the support profile.
- the bridging beam is then fixed to the supporting profile with the help of turnbuckles, which suitably brace the lower chord of the bridging beam against the upper chord of the supporting profile and thus fix the bridging beam to the supporting profile in the horizontal longitudinal direction of the supporting profile and in the vertical height direction of the supporting profile.
- a method should also be specified that enables the simplified, correct installation of bridge beams on a bridge for rail vehicles.
- the invention has achieved this object with a bridge that has at least the features specified in claim 1 and a method that includes at least the work steps specified in claim 18 .
- a bridge according to the invention for a rail vehicle thus comprises, in accordance with the prior art explained at the beginning, a track formed from two parallel rails, intended for the rail vehicle to drive on, and at least one bridge beam which carries the rails of the track and transverse to a supporting profile of the bridge is aligned, wherein the bridge beam is supported by a height-regulating element arranged between the support profile and the bridge beam, and at least one fastening device is provided, by means of which the position of the bridge beam is fixed in relation to the height-regulating element.
- the height-regulating element is designed as a one-piece block in such a bridge, the height of which is adapted to the distance between the support profile and the bridge beam by means of material-removing machining.
- the invention is therefore based on the idea of supporting a completely formed bridge beam, which is no longer machined on the construction site, on the carrier profile by means of a height-regulating element formed in one piece in the manner of a block.
- the block used according to the invention for height regulation is adjusted in terms of its height by material-removing processing so that the top of the bridge beam, on which the rail to be supported stands, is in the vertical target position (target height) provided for it.
- This target position corresponds to the "absolute target height" that must be maintained so that the running surface of the rail attached to the respective bridge beam is at the optimal height for a problem-free, safe crossing by a rail vehicle.
- a height adjustment element provided according to the invention is a compact solid block which, unlike the large-volume beam blanks provided in the prior art, is easy to handle and easy to use with the material processing techniques that have been tried and tested in practice when processing bridge beams on the construction site can be brought to the required height.
- the invention provides for the assembly of a bridge beam on a support profile of a bridge for a rail vehicle, with the proviso that the upper side of the bridge beam is in the fully assembled state at a certain absolute target height, at least the following work steps: a) providing a bridge beam; b) providing a height adjustment element which is manufactured as a one-piece block and has a height that is greater than a theoretically determined maximum possible distance that exists between the underside of the bridge beam and the top of the supporting profile when the top of the bridge beam is in the target height is located; c) determining the actual distance between the underside of the bridge beam and the top of the support profile when the top of the bridge beam is at the target height; d) shortening the effective height of the height adjustment element between the underside of the bridge beam and the top side of the support profile in the installed position by the difference determined in step c) by material-removing processing of the height adjustment element; e) attachments of the height-adjusting element, which is adjusted in terms of its height, to the upper side
- the carrier profile of a bridge according to the invention is typically designed as a T-beam with an upper chord and a web carrying the upper chord or as a double-T girder in which, in addition to the upper chord, a lower chord is also formed on the web on the side facing away from the upper chord .
- other profile shapes are also conceivable, such as a box shape with a rectangular cross section. It is only essential for the invention that the support profile provides a surface on its upper side on which the height adjustment element provided according to the invention can sit.
- the material-removing machining of the height-regulating element carried out according to the invention for the purpose of adjusting the height can be carried out in any suitable manner familiar to the person skilled in the art and adapted to the material of the height-regulating element as is customary for the person skilled in the art.
- the well-known chip-removing methods, such as milling, planing, grinding , filing, are suitable for this purpose, which can also be easily accomplished in mobile use on the construction site with the equipment available for this purpose in practice.
- the bridge beam provided according to the invention is formed in a conventional manner from wood or steel, since the bridge beam no longer has to be processed at the installation site.
- the height-regulating element can consist of any material that can be used to remove material with the usual technical measures such as milling, planing, grinding, and filing in order to adjust the height permitted.
- the height adjustment element can also be made of wood, for example, if it has sufficient load-bearing capacity.
- the bridge beam and the height-adjusting element are each made of a plastic-based material.
- the use of a plastic-based material not only has advantages with regard to the durability and resilience of bridge beams and height adjustment elements, but also allows an optimized shape and adaptation of the bridge beam and height element to the spatial conditions and functional requirements existing on site in a simple manner.
- plastic-sand mixtures have proven themselves for the production of the bridge beam and/or the height-regulating element, as they are successfully used in the prior art for the production of sleepers for the track superstructure.
- a plastic material is particularly suitable for the production of the bridge beam, which consists of 10-65% by mass, in particular 10-60% by mass, of thermally deformable plastic and the rest of sand mixed with the plastic .
- Variants of this plastic-based material which has been tried and tested for the manufacture of sleepers for the track superstructure, and the process steps and parameters to be taken into account when processing it into sleepers and bridge beams are described in detail in European Patent 3445734 (application number 1671 7667.6), the content of which is incorporated herein by reference registration is recorded.
- the height-adjusting element used according to the invention can also be made from a plastic-sand mixture, with proportions of up to 65% by mass, in particular up to 60% by mass, of sand and 35-100% by mass, in particular 40-100% by mass -%, plastic have proven.
- sand is only optional for the material used for the height adjustment element in order to save weight or plastic material.
- the sand content of the material of the height adjustment element is lower than the sand content of the material from which the bridge beam is made.
- limiting the sand content to a maximum of 35% by mass or a maximum of 20% by mass has proven useful here.
- the processing of the composite plastic-sand mixture and the selection of the appropriate plastic and sand can also be on the state. Set up technology that is described in the aforementioned publications EP 3445734 B1 and WO 2018/192930 A1, which are incorporated herein by reference.
- a block-like height adjustment element according to the invention is that it can be slidably mounted on the support profile in the longitudinal direction of the support profile due to its high dimensional stability. Due to the displaceability in the longitudinal direction of the support profile and thus in the longitudinal direction of the track, the bridge beam can follow the linear expansion of the rail it supports, which can occur, for example, as a result of temperature changes. Stresses on the height element due to stresses that can occur when the height element is fixed to the support profile can thus be safely avoided.
- the height adjustment element can be used not only as a loose support on the carrier profile, but also for targeted guidance of the bridge beam connected to the height adjustment element along the carrier profile in its longitudinal direction. This is because of that particular wear resistance and stability is possible in particular if at least the height adjustment element is formed from plastic-based material.
- a groove-like depression extending in the longitudinal direction of the carrier profile can be formed in the underside of the height-adjusting element assigned to the carrier profile, the width of which, measured transversely to the longitudinal extension of the carrier profile, and the depth, measured perpendicularly to the upper side of the carrier profile, are dimensioned such that the height-adjusting element is free to open can be moved along the carrier profile.
- the wall sections delimiting the depression on their longitudinal sides guide the height-regulating element on the associated longitudinal sides of the carrier profile, so that unintentional displacement transversely to the longitudinal direction of the carrier profile is reliably prevented despite the longitudinal displaceability.
- the guide can also be formed by separately prefabricated guide elements attached to the longitudinal sides of the height-adjusting element, which protrude beyond the underside of the height-adjusting element and act against the respective associated longitudinal side of the carrier profile.
- the height adjustment element provided according to the invention can basically be fixed to the bridge beam in any manner known to a person skilled in the art.
- the fastening device used for this purpose can comprise a first counter-bearing provided on the height-regulating element, a second counter-bearing provided on the bridge beam, and a clamping device that clamps the counter-bearings against one another.
- a particularly space-saving and, at the same time, easy-to-assemble configuration results when the counter bearing provided on the height-adjusting element is replaced by an outer surface of the Height control element is formed, at which a running through the height control element opens recess, through which the clamping means is guided to the counter bearing of the bridge beam.
- the recess can be designed as a through-opening through which a screw is inserted as a clamping means, the head of which is supported on the edge of the outer surface of the height-regulating element surrounding the mouth of the through-opening and serving as a counter bearing.
- the abutment provided on the height adjustment element by an outer surface of an intermediate piece held on the height adjustment element, at which a recess running through the height adjustment element opens, through which the clamping means is guided to the abutment of the bridge beam.
- the intermediate piece can be made as an angle element from a high-strength material. The use of such an intermediate piece then enables not only a particularly heavy-duty attachment, but also the compensation of positional inaccuracies and the like.
- the recess provided on the intermediate piece can be designed as a slot or the like, via which it is possible to position the clamping means so that it acts securely on both counter bearings for clamping, even if the alignment of the counter bearings of the height adjustment element and bridge beam is not perfectly aligned can.
- the bridge beam is mounted on the height-regulating element so that it can be displaced in the vertical direction, ie, the direction of gravity.
- This can be implemented in a particularly simple manner by using an intermediate piece for connecting the height-adjusting element to the bridge beam. Due to a vertically displaceable bearing, the bridge beam can follow the wave-like depressions and elevations of the track running along the track, which occur when a rail vehicle drives over the track.
- Such a vertically movable guide also contributes to reducing the stresses that would otherwise occur in the area of the attachment of the Height adjustment element would occur on the bridge beam or the beam profile.
- a guide in the form of a groove-shaped depression extending in the direction of movement can be provided, for example, on the height-regulating element.
- a connecting link extending in the direction of gravity can also be provided on the intermediate piece, into which a guide projection provided on the height-regulating element engages, or vice versa.
- the abutment of the bridge beam used for connecting to the height-regulating element can be formed by a recess formed on the bridge beam, into which the clamping means engages.
- the recess can be formed by a retaining element cast into the bridge beam, which consists of a material at least in the area against which the clamping means acts that can be subjected to higher loads than the material from which the bridge beam is made consists.
- This holding element can be a hollow profile which has an opening which is directed towards an outside of the bridge beam and into which the clamping means engages.
- the clamping means can be supported over a large area on the counter bearing, which in this case is formed by the edge region of the holding element which delimits the opening and is gripped behind by the clamping means.
- the opening of the holding element can be designed in such a way that positional inaccuracies when attaching the height-regulating element to the bridge beam can be compensated for without any problems.
- Holding elements are particularly suitable for this purpose, which have an opening designed as a slot opening extending in the longitudinal direction of the bridge beam, within which the clamping element can be displaced with its bearing section reaching into the opening.
- the opening of the holding element is provided, for example, on the side faces of the bridge beam.
- a clamping device can then for example designed in the manner of a clamp or clasp, the end of which engages in the relevant opening.
- a particularly simple and at the same time space-saving installation results when the opening of the holding element is arranged on the underside of the bridge beam assigned to the carrier profile.
- FIG. 1 shows the fastening of a bridge beam on a carrier profile of a bridge for a rail vehicle in a section transverse to the longitudinal extension of the carrier profile;
- FIG. 2 shows the fastening according to FIG. 1 in a lateral view, partially cut along the section line A- ⁇ shown in FIG. 1;
- Fig. 3 shows an alternative attachment of a bridge beam on a
- Support profile of a bridge for a rail vehicle in a section transverse to the longitudinal extent of the support profile
- FIG. 4 shows the fastening according to FIG. 3 in a lateral view, partially cut along the section line AA drawn in FIG.
- the support profiles T1, T2 shown in the figures, formed in a conventional manner as a double-T profile from a steel proven for this purpose, are part of an equally conventional bridge, not shown here, over which a rail vehicle can cross a valley, a river or the like .
- a bridge beam B1, B2 is supported on the support profile T1, T2, which is aligned transversely to the longitudinal extent LT of the support profiles T1, T2.
- On the A rail S1, S2 is fastened to the upper side of the bridge beams B1, B2 by means of a fastening system that has been tried and tested in practice for this purpose.
- the rails S1, S2 are each part of a track, not shown here, which in a known manner comprises two rails that are guided in parallel and are fastened to the bridge beams B1, B2 in the same way as the rails S1, S2.
- the bridge beams B1, B2 each consist of a plastic-sand mixture, which has been processed into the respective bridge beam B1, B2 in the manner described above in European Patent 3445734 (application number 1671 7667.6).
- the bridge beams B1, B2 are reinforced with steel reinforcements W in the manner described in WO 2018/192930 A1.
- a holding element H1, H2 formed from sheet steel was additionally cast into each of the bridge beams B1, B2.
- the holding elements H1.H2 each consist of a base plate 1 covering the bridge beams B1, B2 on its underside U1, U2 and a cross-section ( Figures 2, 4) U-shaped profile 2, which with its legs 3.4 on the inside seated on the side of the base plate 1 assigned to the respective bridge beam B1, B2 and is welded to the base plate 1 there.
- the profile 2, which is closed on its narrow sides 5, is arranged centrally on the base plate 1 in relation to the width BB of the bridge beams B1, B2 and extends in the longitudinal direction LB of the respective bridge beam B1, B2.
- the length of the profile 2 is shorter than the length of the respective bridge beam B1, B2, so that the profile 2 is completely surrounded by the material of the respective bridge beam B1, B2, except for its open side assigned to the base plate 1.
- This is made of the profile by means of anchors 6 which, starting from the roof 7 of the profile 2 extending between the legs 3,4, engage in the material of the respective bridge beam B1, B2 2 and the base plate 1 formed respective holding element H1, H2 highly resilient anchored in the respective bridge beam B1, B2.
- the space 8 bounded by the profile 2 with the base plate 1 is open to the underside U1, U2 of the respective bridge beam B1.B2 through a slot opening 9 » which is aligned centrally in relation to the width BB of the respective bridge beam B1, B2 and extends in the longitudinal direction LB of the respective bridge beam B1, B2 extends.
- the bridging beams B1, B2 are each supported via a height-regulating element R1, R2 on the planar upper side 10 of the upper chord of the associated carrier profile T1, T2.
- the height-adjusting elements R1, R2 have each been molded from a plastic-sand mixture in the manner already mentioned above and described in European Patent 3445734 (application number 1671 76 67.6). However, they each have a lower sand content than the bridge beams Bt » B2. In this way, the height adjustment elements R1, R2 are less brittle than the bridge beams B1, B2, so that they can, for example, be processed more easily by removing material.
- the height HR of the height adjustment elements R1, R2 and the associated distance between the underside U1, U2 of the respective bridge beam B1, B2 and the top 10 of the carrier profile T1 > T2 are each assigned to the respective bridge beam B1, B2, for example by milling
- the width of the depression 15 is dimensioned such that the carrier profile T1 sits with its upper belt in the depression 15 and there is sufficient play between the wall sections 16,17 and the wall sections 16,17 and the associated longitudinal sides of the upper chord of the carrier profile T1 is given.
- the wall sections 16, 17 block the height adjustment element R1 against excessive displacement in the transverse direction QT, which is oriented transversely to the longitudinal direction LT of the beam profile Tt.
- two tensioning elements N1, N2 designed as tensioning screws are provided in the embodiment shown in Figures 1 and 2, each of which is guided with its bar-like head 18 through the slot opening 9 of the holding element H1 and then around the longitudinal axis of the Clamping elements N1,N2 have been pivoted such that the head 18 is supported on the inner surface of the base plate 1 of the holding element H1, which is associated with the roof 7 of the holding element H1 and forms a first abutment 19 for the clamping elements N1,N2.
- the clamping elements N1, N2 With their shank 20, the clamping elements N1, N2 are guided through recesses 21 designed as through-openings, which open out on the underside 14 of the height-regulating element H1.
- the nuts 22, 23 screwed there onto the thread of the clamping elements N1, N2 act against the outer surface forming a second counter bearing 24 for the clamping elements N1, N2 on the underside 14 of the
- the clamping elements N1, N2 each form a fastening device with which the height-regulating element R1 is held on the bridge beam B1.
- the bridge beam B2 is connected to the height-adjusting element N2 via intermediate pieces Z1, Z2 designed as L-shaped steel angles.
- the intermediate pieces Z1, Z2 rest with their one leg 25 on the underside U2 of the bridge beam B2.
- a recess 26 designed as a through opening, through which a clamping means N1, N2, also designed as a clamping screw, is guided with its shaft.
- the middle of the span! N1, N2 each have, like the clamping means N1, N2 in the embodiment of Figures 1 and 2, a bar-like head 27 which, in the same way as the head 18 of the clamping elements N1, N2, acts on the inner surface of the base plate 1 of the holding element, acting as a counter bearing 19 H1 is supported.
- the free lower outer surface of the leg 25 also serves as a second abutment for the nut 28, 29, which is screwed onto the threaded shank of the clamping elements N1, N2.
- the clamping elements N1, N2 also form a fastening device with their heads 27 and the nuts 28, 29, with which the height-regulating element R2 is held on the bridge beam B2.
- the second leg 30 of the intermediate pieces Z1, Z2, each of which is aligned at right angles to the first leg 25, is guided in a recess 31, 32, which extends into the associated longitudinal side surface 33 of the Height adjustment element R2 is molded.
- the lateral boundaries of the recesses 31,32 embrace the legs 30 on their free side facing away from the height-regulating element R2, so that the legs 30 can each be displaced exclusively in the vertical direction V in the associated recess 31,32.
- the legs 30 protrude beyond the underside of the height adjustment element R2, which is seated on the upper chord of the carrier profile T2 so that it can be slid in the longitudinal direction LT, and thus form a lateral guide, by the excessive movement of the height adjustment element R2 in
- V vertical direction (direction of gravity)
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
L'invention concerne un pont pour un véhicule ferroviaire. Ledit pont comprend une voie formée par deux rails (S1, S2) qui s'étendent en parallèle et qui sont conçus tel que le véhicule ferroviaire se déplace sur eux, et comprend une poutre de pont (B1, B2) qui porte les rails (S1, S2) de la voie et qui est orientée transversalement à un profil de support (T1, T2) du pont. La poutre de pont (B1, B2) est supportée par un élément de régulation de hauteur (R1, R2) situé entre le profilé de support (T1, T2) et la poutre de pont (B1, B2), et au moins un dispositif de fixation servant à fixer la position de la poutre de pont (B1, B2) par rapport à l'élément de régulation de hauteur (R1, R2)est disposé. Afin d'obtenir un positionnement exact de la poutre de pont à sa hauteur voulue avec une complexité réduite et à faible coût, selon l'invention, l'élément de régulation de hauteur (R1, R2) est réalisé sous la forme d'un bloc monobloc dont la hauteur (HR) est régulée, par usinage, à l'espacement entre le profilé de support (T1, T2) et la poutre de pont (B1, B2). La poutre de pont et l'élément de régulation de hauteur sont de préférence constitués d'un matériau à base de matière plastique, en particulier d'un mélange plastique-sable.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020119905.8A DE102020119905A1 (de) | 2020-07-28 | 2020-07-28 | Brücke für ein Schienenfahrzeug und Verfahren zur Montage eines Brückenbalkens auf einer solchen Brücke |
PCT/EP2021/071059 WO2022023373A1 (fr) | 2020-07-28 | 2021-07-27 | Pont pour véhicule ferroviaire et procédé de montage d'un poutre de pont sur un tel pont |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4189163A1 true EP4189163A1 (fr) | 2023-06-07 |
Family
ID=77168282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21749227.1A Pending EP4189163A1 (fr) | 2020-07-28 | 2021-07-27 | Pont pour véhicule ferroviaire et procédé de montage d'un poutre de pont sur un tel pont |
Country Status (6)
Country | Link |
---|---|
US (1) | US20230323608A1 (fr) |
EP (1) | EP4189163A1 (fr) |
KR (1) | KR20230037048A (fr) |
CN (1) | CN116134194A (fr) |
DE (1) | DE102020119905A1 (fr) |
WO (1) | WO2022023373A1 (fr) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3065113B2 (ja) * | 1991-02-20 | 2000-07-12 | 積水化学工業株式会社 | 橋梁上に軌道を敷設する方法 |
DE19813258C1 (de) | 1998-03-26 | 1999-05-27 | Krupp Ag Hoesch Krupp | Stählerne Eisenbahnbrücke mit Trägern und darauf angeordneten Brückenbalken |
JP2000230201A (ja) * | 1999-02-09 | 2000-08-22 | Sekisui Chem Co Ltd | 枕木構造 |
KR20180124967A (ko) | 2016-04-22 | 2018-11-21 | 보슬로흐-베르케 게엠베하 | 철도 트랙 상부 구조물에 사용하기 위한 침목 제조 방법 |
DE102017108224A1 (de) | 2017-04-18 | 2018-10-18 | Vossloh-Werke Gmbh | Schwelle für den Gleisoberbau |
-
2020
- 2020-07-28 DE DE102020119905.8A patent/DE102020119905A1/de active Pending
-
2021
- 2021-07-27 CN CN202180059753.8A patent/CN116134194A/zh active Pending
- 2021-07-27 US US18/018,378 patent/US20230323608A1/en active Pending
- 2021-07-27 KR KR1020237004659A patent/KR20230037048A/ko active Search and Examination
- 2021-07-27 EP EP21749227.1A patent/EP4189163A1/fr active Pending
- 2021-07-27 WO PCT/EP2021/071059 patent/WO2022023373A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
US20230323608A1 (en) | 2023-10-12 |
CN116134194A (zh) | 2023-05-16 |
KR20230037048A (ko) | 2023-03-15 |
DE102020119905A1 (de) | 2022-02-03 |
WO2022023373A1 (fr) | 2022-02-03 |
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