EP0983400B1 - Track superstructure, in particular for tramway, tram-railway and underground railway lines - Google Patents

Track superstructure, in particular for tramway, tram-railway and underground railway lines Download PDF

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Publication number
EP0983400B1
EP0983400B1 EP98925578A EP98925578A EP0983400B1 EP 0983400 B1 EP0983400 B1 EP 0983400B1 EP 98925578 A EP98925578 A EP 98925578A EP 98925578 A EP98925578 A EP 98925578A EP 0983400 B1 EP0983400 B1 EP 0983400B1
Authority
EP
European Patent Office
Prior art keywords
superstructure
platforms
level
railway
roadway
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.)
Expired - Lifetime
Application number
EP98925578A
Other languages
German (de)
French (fr)
Other versions
EP0983400A1 (en
Inventor
Claudio Favaron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mecno-Rail Srl
Original Assignee
Mecno-Rail Srl
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mecno-Rail Srl filed Critical Mecno-Rail Srl
Publication of EP0983400A1 publication Critical patent/EP0983400A1/en
Application granted granted Critical
Publication of EP0983400B1 publication Critical patent/EP0983400B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E01B2/00—General structure of permanent way
    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B21/00—Track superstructure adapted for tramways in paved streets
    • 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
    • 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
    • E01B2204/06—Height or lateral adjustment means or positioning means for slabs, sleepers or rails
    • 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
    • E01B2204/09—Ballastless systems
    • 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
    • E01B2204/11—Embedded tracks, using prefab elements or injecting or pouring a curable material

Definitions

  • This invention relates to a track superstructure, in particular for tramway, tram-railway and underground railway lines.
  • Track superstructures are well known.
  • a first known type of superstructure uses a plurality of sleepers supported by a bed of ballast and to which the rails are fixed. To the sides of and between said rails there is then cast a covering to the level of the upper surface of the rails.
  • Another known type of superstructure consists of a foundation cast on a seat and on which there rest a plurality of reinforced concrete platforms spaced from said foundation by an anti-vibration blanket.
  • the rails are fixed on said platforms and a filling layer is applied to level the rail surface with the roadway.
  • This type of superstructure also has certain drawbacks, and in particular:
  • An object of the invention is to eliminate the drawbacks jointly or separately present in known types of superstructure by providing a superstructure which is reliable and of lesser cost than such known types.
  • a further object of the invention is to provide a superstructure which can be maintained at low cost without requiring the line to be interrupted for long periods.
  • a further object of the invention is to provide a superstructure which enables maintenance to be effected in a simple and comfortable manner.
  • the superstructure according to the invention is mounted within a continuous trench 2 formed in the roadway 4, and comprises substantially a modular load-bearing structure 6 consisting of four channel-shaped longitudinal members 8 to which there are welded a plurality of cross-members 10 formed by channel beams coupled together by welding them to an internally threaded bush 12 within there engages a corresponding screw 14 acting as a bearing foot for the cross-members.
  • each cross-member is supported by four screws which in pairs form two channels bounding each rail of the track, each screw being housed in a sleeve 18.
  • the superstructure also comprises a plurality of prefabricated modular reinforced concrete platforms 20 of substantially inverted isosceles trapezium cross-section which are covered on their sides and lower surface with a first layer of elastic material 22 for damping purposes, and an outer layer of glass-reinforced plastic 24.
  • a rail portion 26 of the railway, tramway or tram-railway line is housed in a suitable channel 16 preferably of stainless steel, which is embedded in the platform and is fixed thereto by a plurality of bolts 28 engaged in a threaded bush 32 by way of a previously interposed coil spring 30.
  • the superstructure of the invention is assembled in the following manner:
  • a reinforced concrete bed 34 is cast on the bottom of the trench, after which a plurality of prefabricated concrete panels 36 are positioned along the sides of the trench.
  • the trench is covered with a layer of insulating material 38, after which the structures 6 are placed in position and the cross-members 10 adjusted in height by operating the adjustment screws 14.
  • the prefabricated platforms 20 are then rested on said cross-members, the gauge between the two rails then being adjusted by means of suitable spacers 40.
  • Said spacers 40 consist of a cylindrical sleeve provided with threaded endpieces which engage corresponding rods 42 secured to the platforms 20.
  • Rotation in one direction or the other causes the two platforms and hence the two rails to approach or withdraw from each other.
  • a final level adjustment of the platforms 20 is then made by operating the screws 14.
  • concrete is then cast, interrupted at predetermined distances by transverse sheets of insulating material (not show on the drawings), so as to cover the trench as far as the level of the upper surface of the panels (see Figure 4).
  • the screws 14 are then removed from the containing sleeves 18 and a plurality of prefabricated reinforced concrete panels 46 are then laid to level the roadway.
  • the panels 46 and platforms 20 are firstly removed, after which the screws 14 are inserted into the sleeves 18 to engage the bushes 12 rigid with the cross-members 10 in order to be able to rotate the screws and return the casting 44 to the correct level together with the structure 6 incorporated in it (see Figure 8).
  • a contribution to the renewal work is also obtained by injecting concrete through suitable tubes previously installed during assembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Railway Tracks (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

A track superstructure, in particular for tramway, tram-railway and underground railway lines, characterised by comprising within a continuous trench in the roadway: a level-adjustable modular metal structure, means (12, 14) for adjusting the level of said structure, a plurality of modular platforms (20) supporting rail pieces (26), said platforms being at least partly covered with an anti-vibration blanket (22) and resting on said structure, a concrete casting (44) filling the interior of the trench to incorporate the metal structure and the lower and lateral surface of said platforms, substantially to the level of the roadway surface.

Description

This invention relates to a track superstructure, in particular for tramway, tram-railway and underground railway lines.
Track superstructures are well known. A first known type of superstructure uses a plurality of sleepers supported by a bed of ballast and to which the rails are fixed. To the sides of and between said rails there is then cast a covering to the level of the upper surface of the rails.
This known type of superstructure has however the drawback of being laborious in terms of the operations involved in refilling with ballast and packing it around the sleepers, this requiring breakage of the road surface with consequent interruption of the line.
Another known type of superstructure consists of a foundation cast on a seat and on which there rest a plurality of reinforced concrete platforms spaced from said foundation by an anti-vibration blanket. The rails are fixed on said platforms and a filling layer is applied to level the rail surface with the roadway.
This type of superstructure also has certain drawbacks, and in particular:
  • the need to rigorously check the planarity of the foundation to ensure a uniform platform level,
  • time loss in replacing or levelling platforms,
  • the need to provide adequately equipped road sites which interrupt the tram service. FR-A-2.691.484 relates to the laying of rails in a level adjustable trench into which concrete is subsequently cast in order to fasten the rails.
An object of the invention is to eliminate the drawbacks jointly or separately present in known types of superstructure by providing a superstructure which is reliable and of lesser cost than such known types.
A further object of the invention is to provide a superstructure which can be maintained at low cost without requiring the line to be interrupted for long periods.
A further object of the invention is to provide a superstructure which enables maintenance to be effected in a simple and comfortable manner.
These and further objects which will be apparent from the ensuing description are attained according to the invention through a track superstructure, in particular for tramway, tram-railway and underground railway lines as described in claim 1.
A preferred embodiment of the invention is described hereinafter with reference to the accompanying drawings, on which:
  • Figure 1 shows a cross-section through the metal structure of the superstructure, mounted in the trench,
  • Figure 2 shows an enlarged cross-section through a prefabricated platform,
  • Figure 3 shows a longitudinal section through the platforms while under adjustment after being mounted on the metal structure,
  • Figure 4 shows a longitudinal section through the superstructure after the concrete has been cast,
  • Figure 5 shows the superstructure in plan view,
  • Figure 6 is an enlarged detailed view of the sleeper adjustment screw,
  • Figure 7 shows the platform removal,
  • Figure 8 shows the platform removal for renovating the concrete casting.
    • As can be seen from the figures, the superstructure according to the invention is mounted within a continuous trench 2 formed in the roadway 4, and comprises substantially a modular load-bearing structure 6 consisting of four channel-shaped longitudinal members 8 to which there are welded a plurality of cross-members 10 formed by channel beams coupled together by welding them to an internally threaded bush 12 within there engages a corresponding screw 14 acting as a bearing foot for the cross-members.
    Specifically, each cross-member is supported by four screws which in pairs form two channels bounding each rail of the track, each screw being housed in a sleeve 18. The superstructure also comprises a plurality of prefabricated modular reinforced concrete platforms 20 of substantially inverted isosceles trapezium cross-section which are covered on their sides and lower surface with a first layer of elastic material 22 for damping purposes, and an outer layer of glass-reinforced plastic 24.
    A rail portion 26 of the railway, tramway or tram-railway line is housed in a suitable channel 16 preferably of stainless steel, which is embedded in the platform and is fixed thereto by a plurality of bolts 28 engaged in a threaded bush 32 by way of a previously interposed coil spring 30.
    The superstructure of the invention is assembled in the following manner:
    A reinforced concrete bed 34 is cast on the bottom of the trench, after which a plurality of prefabricated concrete panels 36 are positioned along the sides of the trench. The trench is covered with a layer of insulating material 38, after which the structures 6 are placed in position and the cross-members 10 adjusted in height by operating the adjustment screws 14. The prefabricated platforms 20 are then rested on said cross-members, the gauge between the two rails then being adjusted by means of suitable spacers 40. Said spacers 40 consist of a cylindrical sleeve provided with threaded endpieces which engage corresponding rods 42 secured to the platforms 20.
    Rotation in one direction or the other causes the two platforms and hence the two rails to approach or withdraw from each other. A final level adjustment of the platforms 20 is then made by operating the screws 14.
    Having made the adjustment, concrete is then cast, interrupted at predetermined distances by transverse sheets of insulating material (not show on the drawings), so as to cover the trench as far as the level of the upper surface of the panels (see Figure 4).
    The screws 14 are then removed from the containing sleeves 18 and a plurality of prefabricated reinforced concrete panels 46 are then laid to level the roadway.
    If the rail need to be replaced because of wear, it is sufficient to disengage the bolts 30 and extract the various damaged rail pieces from their housing-channel.
    If the insulating blanket 22 needs to be replaced due to infiltration or wear with time, the platforms 20 are raised and their base blanket is then replaced (see Figure 7).
    If work is required on the concrete casting 44, the panels 46 and platforms 20 are firstly removed, after which the screws 14 are inserted into the sleeves 18 to engage the bushes 12 rigid with the cross-members 10 in order to be able to rotate the screws and return the casting 44 to the correct level together with the structure 6 incorporated in it (see Figure 8). A contribution to the renewal work is also obtained by injecting concrete through suitable tubes previously installed during assembly.
    From the aforegoing it is apparent that the superstructure of the invention presents many advantages, and in particular:
    • it enables the line parts to be rapidly replaced by merely removing the platform from the region concerned, this being an operation which can be carried out during the night when the traffic level is reduced,
    • it considerably reduces vibro-acoustic pollution because of the presence of the insulating blankets,
    • it enables the rails to be easily and comfortably levelled and aligned.

    Claims (9)

    1. A track superstructure, in particular for tramway, tram-railway and underground railway lines, comprising within a continuous trench in the roadway a level-adjustable modular metal structure (6), and means (12,14) for adjusting the level of said structure,
      characterised by further comprising:
      a plurality of prefabricated modular platforms (20) each housing a channel (16) in which. a rail piece (26) is removably inserted, said platforms being adjacent to each other in longitudinal direction and at least partly covered with an anti-vibration blanket (22) and resting on said structure,
      a concrete casting (44) filling the interior of the trench to incorporate the metal structure and the lower and lateral surface of said platforms, substantially to the level of the roadway surface so that these platforms may be removed from the modular metal structure (6).
    2. A superstructure as claimed in claim 1, characterised in that the structure (6) consists of C-shaped longitudinal members (8) and cross-members (6).
    3. A superstructure as claimed in claim 1, characterised in that the adjustment means consist of threaded screws (14) engaging in corresponding bushes (12) rigid with the structure, the ends of said screws acting as support elements during the installation of the superstructure..
    4. A superstructure as claimed in claim 3, characterised in that said screws (14) are housed in corresponding sleeves (18).
    5. A superstructure as claimed in claim 1, characterised in that each platform (20) is substantially of inverted isosceles trapezium cross-section.
    6. A superstructure as claimed in claim 1, characterised in that each platform is constructed of reinforced concrete.
    7. A superstructure as claimed in claim 1, characterised in that each rail (26) is fixed in the channel by bolts (28) which engage in corresponding threaded bushes (32) by way of a previously interposed coil spring (32).
    8. A superstructure as claimed in claim 1, characterised in that each platform (20) is covered externally with a layer of glass-reinforced plastic.
    9. A superstructure as claimed in claim 1, characterised by comprising a plurality of panels (36) interposed between the platforms and positioned laterally to them for their levelling with the roadway.
    EP98925578A 1997-05-13 1998-05-12 Track superstructure, in particular for tramway, tram-railway and underground railway lines Expired - Lifetime EP0983400B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    IT97VE000018A IT1294571B1 (en) 1997-05-13 1997-05-13 TRACK SUPPLY, PARTICULARLY FOR TRAM, RAILWAY AND SUBWAY LINES.
    ITVE970018 1997-05-13
    PCT/EP1998/002764 WO1998051863A1 (en) 1997-05-13 1998-05-12 Track superstructure, in particular for tramway, tram-railway and underground railway lines

    Publications (2)

    Publication Number Publication Date
    EP0983400A1 EP0983400A1 (en) 2000-03-08
    EP0983400B1 true EP0983400B1 (en) 2002-09-25

    Family

    ID=11424262

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98925578A Expired - Lifetime EP0983400B1 (en) 1997-05-13 1998-05-12 Track superstructure, in particular for tramway, tram-railway and underground railway lines

    Country Status (6)

    Country Link
    EP (1) EP0983400B1 (en)
    AT (1) ATE224979T1 (en)
    AU (1) AU7764098A (en)
    DE (1) DE69808285D1 (en)
    IT (1) IT1294571B1 (en)
    WO (1) WO1998051863A1 (en)

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1700954A2 (en) * 2004-12-23 2006-09-13 SEAP Costruzioni Generali S.p.a. Prefabricated modular member, permanent railway for tramways and subways including said member, and process for laying the same
    KR102276570B1 (en) * 2020-02-14 2021-07-13 주식회사 이알에스 Lower part separating type mold for constructing embedded rail track

    Families Citing this family (10)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    BE1014311A5 (en) * 2001-07-25 2003-08-05 Vanhonacker Patrick Rail support system for railway in highways and analysis system for such a rail.
    FR2833023B1 (en) * 2001-12-05 2004-05-21 Alstom METHOD OF CONSTRUCTING A RAIL TRACK IN WHICH A CONCRETE TRACK SLAB IS MADE AND INSERTION ELEMENTS OF THE RAIL TRACK ARE INSERTED IN THE TRACK SLAB
    AU2002257578A1 (en) * 2002-02-02 2003-09-02 Rte Technologie Gmbh Device for adjusting the width of a track
    AT413551B (en) * 2004-02-03 2006-03-15 Rte Technologie Gmbh Production of a fixed track for rail vehicles comprises fixing in position a guide bar forming a guide/curve template, and making a rail support together with channels for the rails from concrete or profiling the channels
    BE1017167A3 (en) * 2006-06-13 2008-03-04 Composite Damping Material Nv Ballastless railway for moving track vehicle, has sound-absorbing layer on top side of hardening and between rails, where layer comprises standing synthetic fibers with free end for absorbing sounds of vehicles moving over railway
    FR2928940B1 (en) * 2008-03-21 2010-04-02 Systra PROCESS FOR THE PREFABRICATION OF LONGRINES TRACK SUPPORT ON A PREFABRICATED WORK
    CH701644B1 (en) * 2009-08-06 2013-09-30 Sonneville Ag Fixed carriageway for rail vehicles.
    CN107893346A (en) * 2017-10-16 2018-04-10 广州地铁设计研究院有限公司 A kind of railroad car road structure
    AT16434U1 (en) * 2018-05-02 2019-09-15 Edilon Sedra Gmbh DEVICE FOR LAYING TRACKS
    KR102509161B1 (en) * 2021-07-16 2023-03-10 박정근 Method For Constructing Rail Track Of Tram

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    Publication number Priority date Publication date Assignee Title
    NL160351C (en) * 1976-02-25 1979-10-15 Nl Spoorwegen Nv METHOD OF MANUFACTURING A BALLAST-FREE TRACK.
    DE3539225A1 (en) * 1985-11-05 1987-05-14 Max Knape Gmbh & Co Fa Method of installing a track grid
    DE3824132A1 (en) * 1988-07-15 1990-01-18 Kunz Alfred & Co Method for joining a track grid to a superstructure forming a solid travel way for railways
    FR2657096B1 (en) * 1990-01-17 1997-08-01 Sud Ouest Travaux METHOD AND APPARATUS FOR PRECISE ADJUSTMENT OF RAILWAYS PLACED ON CONCRETE PLATFORM.
    FR2691484B1 (en) * 1992-05-22 1994-07-29 Vanotti Gerard METHOD OF CONSTRUCTING A RAILWAY IN CONCRETE.
    DE59406942D1 (en) * 1993-12-23 1998-10-22 Butzbacher Weichenbau Gmbh THRESHOLD
    EP0697485B1 (en) * 1994-08-09 1998-12-02 Cogifer Method and installation for making railway tracks

    Cited By (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1700954A2 (en) * 2004-12-23 2006-09-13 SEAP Costruzioni Generali S.p.a. Prefabricated modular member, permanent railway for tramways and subways including said member, and process for laying the same
    EP1700954A3 (en) * 2004-12-23 2007-02-21 SEAP Costruzioni Generali S.p.a. Prefabricated modular member, permanent railway for tramways and subways including said member, and process for laying the same
    KR102276570B1 (en) * 2020-02-14 2021-07-13 주식회사 이알에스 Lower part separating type mold for constructing embedded rail track

    Also Published As

    Publication number Publication date
    ITVE970018A0 (en) 1997-05-13
    WO1998051863A1 (en) 1998-11-19
    ITVE970018A1 (en) 1998-11-13
    DE69808285D1 (en) 2002-10-31
    ATE224979T1 (en) 2002-10-15
    IT1294571B1 (en) 1999-04-12
    EP0983400A1 (en) 2000-03-08
    AU7764098A (en) 1998-12-08

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