WO1991010778A1 - Improvements in and relating to tram track - Google Patents

Improvements in and relating to tram track Download PDF

Info

Publication number
WO1991010778A1
WO1991010778A1 PCT/GB1991/000031 GB9100031W WO9110778A1 WO 1991010778 A1 WO1991010778 A1 WO 1991010778A1 GB 9100031 W GB9100031 W GB 9100031W WO 9110778 A1 WO9110778 A1 WO 9110778A1
Authority
WO
WIPO (PCT)
Prior art keywords
rail section
rail
head
section according
groove
Prior art date
Application number
PCT/GB1991/000031
Other languages
French (fr)
Inventor
William Henry Hodgson
Original Assignee
British Steel Plc
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
Priority claimed from GB909000581A external-priority patent/GB9000581D0/en
Priority claimed from GB909013508A external-priority patent/GB9013508D0/en
Application filed by British Steel Plc filed Critical British Steel Plc
Publication of WO1991010778A1 publication Critical patent/WO1991010778A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/085—Rail sections
    • 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
    • E01B21/02—Special supporting means; Draining of rails
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B5/00—Rails; Guard rails; Distance-keeping means for them
    • E01B5/02—Rails
    • E01B5/04—Grooved rails

Definitions

  • This invention relates to rail sections and particularly but not exclusively relates to such sections for use in track (rails) for trams, trucks or the like.
  • tram track rails have been produced from steel rolled to quite complex rolling sequences by reason of the shape adopted of said track to ensure adequate structural strength, wear resistance and bonding in the roadway, bearing in mind that such track has to be compatible with both free-standing "open" dedicated sections and contiguous sections which are sited in roadways carrying other modes of transport. It is an object of this invention to provide an improved rail section for use in track for trams/trucks and the like.
  • the present invention provides a rail section comprising a head, a base and an intermediate web portion, the head having a wheel-rim-engaging groove formed in its upper side offset from the centre line of the rail .
  • the groove lies wholly within that part of the head lying on one side of said centre line, or substantially so, and the depth of the groove may roughly equate with the depth of that portion of the head on which the wheel bears.
  • the profile of the rail is such that it can readily be bent laterally.
  • a rail in accordance with this invention may readily be bonded in grooves or troughs in roadways such that the grooved head lies flush with the surface of the roadway, or substantially so; the bonding may be effected with an elastomeric grouting compound of e.g. a polymer type.
  • the said wheel-engaging portion of the head may lie slightly proud of the roadway surface with the portion on the other side of the groove lying flush.
  • the rail may be resiliently supported within the roadway groove/slot, that is, supported on means specifically directed to a resilient mounting as distinct from the inherent resilience ascribable to the bonding medium .
  • Figure 1 illustrates a cross-section through the rail mounted within a groove in a roadway which may be a domestic thoroughfare, a tunnel or dockside .etc;
  • Figures 2 to 6 each illustrate different rail sections which may be utilised in the Figure 1 configuration - note Figure 6 in which the upper surface of the head is downwardly sloped to avoid the need for "packing" the rail to exhibit such a slope as is frequently required.
  • the base 1 is symmetrical whilst the web profile 2 is asymmetrical as likewise is the head.
  • the wheel rim- engaging groove 3 is formed in the head such that it lies wholly, or substantially wholly, within that part of the head lying on one side of the centre line, hence the need for the bulk of metal within portion 4.
  • the wheel- engaging portion 5 of the head lies at a slightly elevated level compared with that on the other side of the groove.
  • the rail is initially supported within a groove or trough cut or otherwise formed in e.g. a concrete roadway 6 which is then primed to bind any dust and sealed against ingress of moisture.
  • the base of the groove may conveniently have a resilient "pad” 7 inserted to extend along it.
  • Resilient wedges or plain distance pieces (not shown) are spaced at intervals along the length of the groove to support the rail section and an elastomeric polymeric grouting compound or glue 8 is then poured around the sides of, and under, the rail and allowed to set firmly; the wedges may in fact be made of the same material as the compound 8 which, for example, may be the proprietory material Icoset, Edilon or Sika.
  • the rail itself may be rolled from a length of (say) 5" square billet which exits from a roughing mill with web indentations 1 partially formed and is then processed in a finishing two-high reversing mill stand by which, in the first pass, web forming indentations 1 are more properly fashioned.
  • the billet is then turned through 90° to enable the groove 2 in the head (3) to be initially fashioned in the second (reversing) pass and is then more fully fashioned in the succeeding pass.
  • the partially formed section is turned back through 90° again for the web (4) to be fully formed in the fourth pass and likewise rotation back through 90° is effected to enable to groove 2 to be finish formed in the final pass.
  • the simple rolling technique adopted avoids the need for complex rolling schedules used hitherto and additionally avoids the need for edge rollers.
  • the steel utilised may conventionally be to BS 11 grade or an equivalent UIC grade, the mass of the section typically being 87 kg/metre although a lower mass of say 60 kg/metre may readily be achievable with this technique now adopted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Abstract

A rail section comprising a head, a base and an intermediate web portion, the head having a wheel-rim-engaging groove (3) formed in its upper side offset from the centre line of the rail. The rail may be bonded in troughs in roadways by an elastomeric grouting compound (8) such as to form track for trams etc.

Description

Improve ents in and Relating to Tram Track
This invention relates to rail sections and particularly but not exclusively relates to such sections for use in track (rails) for trams, trucks or the like.
Hitherto such tram track rails have been produced from steel rolled to quite complex rolling sequences by reason of the shape adopted of said track to ensure adequate structural strength, wear resistance and bonding in the roadway, bearing in mind that such track has to be compatible with both free-standing "open" dedicated sections and contiguous sections which are sited in roadways carrying other modes of transport. It is an object of this invention to provide an improved rail section for use in track for trams/trucks and the like.
From one aspect, the present invention provides a rail section comprising a head, a base and an intermediate web portion, the head having a wheel-rim-engaging groove formed in its upper side offset from the centre line of the rail .
Preferably, the groove lies wholly within that part of the head lying on one side of said centre line, or substantially so, and the depth of the groove may roughly equate with the depth of that portion of the head on which the wheel bears.
The profile of the rail is such that it can readily be bent laterally.
A rail in accordance with this invention may readily be bonded in grooves or troughs in roadways such that the grooved head lies flush with the surface of the roadway, or substantially so; the bonding may be effected with an elastomeric grouting compound of e.g. a polymer type. The said wheel-engaging portion of the head may lie slightly proud of the roadway surface with the portion on the other side of the groove lying flush.
The rail may be resiliently supported within the roadway groove/slot, that is, supported on means specifically directed to a resilient mounting as distinct from the inherent resilience ascribable to the bonding medium .
In order that the invention may be fully understood one embodiment thereof will now be described, by way of example, with reference to the accompanying drawings in which:-
Figure 1 illustrates a cross-section through the rail mounted within a groove in a roadway which may be a domestic thoroughfare, a tunnel or dockside .etc; and
Figures 2 to 6 each illustrate different rail sections which may be utilised in the Figure 1 configuration - note Figure 6 in which the upper surface of the head is downwardly sloped to avoid the need for "packing" the rail to exhibit such a slope as is frequently required.
Referring now to Figure 1 in the drawings the base 1 is symmetrical whilst the web profile 2 is asymmetrical as likewise is the head. In particular, the wheel rim- engaging groove 3 is formed in the head such that it lies wholly, or substantially wholly, within that part of the head lying on one side of the centre line, hence the need for the bulk of metal within portion 4. The wheel- engaging portion 5 of the head lies at a slightly elevated level compared with that on the other side of the groove.
The rail is initially supported within a groove or trough cut or otherwise formed in e.g. a concrete roadway 6 which is then primed to bind any dust and sealed against ingress of moisture. The base of the groove may conveniently have a resilient "pad" 7 inserted to extend along it. Resilient wedges or plain distance pieces (not shown) are spaced at intervals along the length of the groove to support the rail section and an elastomeric polymeric grouting compound or glue 8 is then poured around the sides of, and under, the rail and allowed to set firmly; the wedges may in fact be made of the same material as the compound 8 which, for example, may be the proprietory material Icoset, Edilon or Sika.
Tram track sited in this fashion exhibits a much greater reduction in noise than other systems adopted hitherto and ground vibration is likewise reduced. Additionally, water cannot readily get under the road bed via the rail since it is completely sealed. Costs of installation are also lower than comparable systems and lifting and replacement of track sections is facilitated by the fact that the pad 7 is not bonded to the concrete base. Further, since the rail is insulated within its "housing" stray electric current leakage (in electric systems) is minimised.
Typically, the rail itself may be rolled from a length of (say) 5" square billet which exits from a roughing mill with web indentations 1 partially formed and is then processed in a finishing two-high reversing mill stand by which, in the first pass, web forming indentations 1 are more properly fashioned. The billet is then turned through 90° to enable the groove 2 in the head (3) to be initially fashioned in the second (reversing) pass and is then more fully fashioned in the succeeding pass. Subsequently, the partially formed section is turned back through 90° again for the web (4) to be fully formed in the fourth pass and likewise rotation back through 90° is effected to enable to groove 2 to be finish formed in the final pass.
The simple rolling technique adopted avoids the need for complex rolling schedules used hitherto and additionally avoids the need for edge rollers.
The steel utilised may conventionally be to BS 11 grade or an equivalent UIC grade, the mass of the section typically being 87 kg/metre although a lower mass of say 60 kg/metre may readily be achievable with this technique now adopted.
Although this invention has been described with reference to the particular embodiment illustrated, it is to be understood that various modifications may readily be made without departing from the true scope of this invention. For example, other rail shapes, compatible with the principles expounded on the design of the wheel adopted to run on it. The chamfers (9) may be provided on only one side of the roadway slot or omitted altogether as also may the pad 7.

Claims

1. A rail section comprising a head, a base and an intermediate web portion, the head having a wheel-rim- engaging groove formed in its upper side offset from the centre line of the rail.
2. A rail section according to claim 1, in which the groove lies wholly within that part of the head lying on one side of the said centre line, or substantially so.
3. A rail section according to claim 1 or claim 2, in which the depth of the groove substantially equates with the depth of that portion of the head on which the wheel bears.
4. A rail section according to any of claims 1 to 3, which has been formed by rolling a billet initially in a roughing mill by which the web portion is partially formed, and then in a two-high reversing mill in which:-
(a) the web portion is more properly formed in the first roll pass, the billet is then turned through 90° , and
(b) the groove is initially fashioned in the second (reversing) roll pass and then more fully fashioned in the third pass, the billet is then turned back through 90° , and (c) the web is fully formed in the fourth pass, the billet is then turned again through 90°, and
(d) the groove is finish formed in the final pass.
5. A rail section according to any one of claims 1 to 4, in which the mass of the rail rolled is of the order of 60 kg/metre.
6. A rail section according to any one of claims 1 to 5, bonded in a trough in a roadway such that the grooved head lies substantially flush with the surface of said roadway to form a track for a tram, truck or the like.
7. A rail section according to claim 6, bonded in the roadway with an elastomeric polymeric grouting compound.
8. A rail section accordng to claim 7, supported on wedges or distance pieces located along the bottom of the trough and around which the grouting compound has been poured.
9. A rail section according to claim 7 or claim 8, in which the bonded rail is sited on a resilient pad extending along the bottom of the trough.
10. A rail section substantially as herein described with reference to the accompanying drawings.
11. A rail section bonded in a roadway trough, substantially as herein described with reference to Figure 1 in the accompanying drawings.
PCT/GB1991/000031 1990-01-10 1991-01-10 Improvements in and relating to tram track WO1991010778A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB909000581A GB9000581D0 (en) 1990-01-10 1990-01-10 Tram track
GB9000581.0 1990-01-10
GB9013508.8 1990-06-16
GB909013508A GB9013508D0 (en) 1990-06-16 1990-06-16 Tram track

Publications (1)

Publication Number Publication Date
WO1991010778A1 true WO1991010778A1 (en) 1991-07-25

Family

ID=26296481

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1991/000031 WO1991010778A1 (en) 1990-01-10 1991-01-10 Improvements in and relating to tram track

Country Status (3)

Country Link
CN (1) CN1054630A (en)
AU (1) AU7062691A (en)
WO (1) WO1991010778A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708296A1 (en) * 1993-07-27 1995-02-03 Cogifer Track rail for guided vehicle tracks
EP0738349A1 (en) * 1994-01-07 1996-10-23 Pacific International Pipe Enterprises, Inc. Method and apparatus for electrically isolating a rail in a precast concrete grade crossing
NL1006483C2 (en) * 1997-07-04 1999-01-05 Tno Railway track with improved vibration damping and noise reduction.
FR2816967A1 (en) * 2000-11-23 2002-05-24 Cogifer Tf Rail track comprises concrete support and pair of grooved rail lines each of which is inserted in longitudinal cut in support and embedded in fixing resin
FR2827879A1 (en) * 2001-07-26 2003-01-31 Cogifer Rail track grooved rail comprises mushroom in upper part with convex running surface, groove separating flange from mushroom and base having plane support surface
FR2849454A1 (en) * 2002-12-30 2004-07-02 Cogifer Railway track device for guiding railway vehicle e.g. tram train, includes profiles, each comprising, in upper part, rolling surfaces inclined to plane supporting face at non-zero angle
WO2006034518A1 (en) * 2004-09-29 2006-04-06 Voestalpine Schienen Gmbh Running rail for a rail trough
EP3617404A1 (en) * 2018-08-31 2020-03-04 Süß Joachim Rail and track structure with the rail

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102765395B (en) * 2011-05-05 2016-02-17 同济大学 A kind of Stereo tramcar
CN105080963B (en) * 2015-05-07 2017-05-17 内蒙古包钢钢联股份有限公司 Rolling method for trough type steel rail
CN108723085A (en) * 2018-06-12 2018-11-02 攀钢集团攀枝花钢钒有限公司 The milling method of head trough of belt rail
CN112024594A (en) * 2020-07-31 2020-12-04 鞍钢股份有限公司 Hole type structure of groove-shaped steel rail

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191415176A (en) * 1914-06-24 1915-08-05 Jakob Thon Improvements in Tramway Rails.
DE450540C (en) * 1926-07-17 1927-10-11 Ver Stahlwerke Akt Ges Rolling mill for rolling grooved rails
DE608324C (en) * 1932-10-28 1935-01-21 Margarethe Freudinger Geb Lieb Bed drainage for rail tracks laid in traffic routes
DE3626490A1 (en) * 1986-08-11 1988-04-07 Lothar Eisner Device for the casting-in of rails
DE8711451U1 (en) * 1987-08-24 1988-12-22 Phoenix Ag, 2100 Hamburg Elastic support bearing for grooved or block rails

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191415176A (en) * 1914-06-24 1915-08-05 Jakob Thon Improvements in Tramway Rails.
DE450540C (en) * 1926-07-17 1927-10-11 Ver Stahlwerke Akt Ges Rolling mill for rolling grooved rails
DE608324C (en) * 1932-10-28 1935-01-21 Margarethe Freudinger Geb Lieb Bed drainage for rail tracks laid in traffic routes
DE3626490A1 (en) * 1986-08-11 1988-04-07 Lothar Eisner Device for the casting-in of rails
DE8711451U1 (en) * 1987-08-24 1988-12-22 Phoenix Ag, 2100 Hamburg Elastic support bearing for grooved or block rails

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708296A1 (en) * 1993-07-27 1995-02-03 Cogifer Track rail for guided vehicle tracks
EP0738349A1 (en) * 1994-01-07 1996-10-23 Pacific International Pipe Enterprises, Inc. Method and apparatus for electrically isolating a rail in a precast concrete grade crossing
EP0738349A4 (en) * 1994-01-07 1997-04-02 Pacific International Pipe Ent Method and apparatus for electrically isolating a rail in a precast concrete grade crossing
NL1006483C2 (en) * 1997-07-04 1999-01-05 Tno Railway track with improved vibration damping and noise reduction.
WO1999001617A1 (en) * 1997-07-04 1999-01-14 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Rail track having enhanced absorption of vibration and sound
FR2816967A1 (en) * 2000-11-23 2002-05-24 Cogifer Tf Rail track comprises concrete support and pair of grooved rail lines each of which is inserted in longitudinal cut in support and embedded in fixing resin
EP1217126A1 (en) * 2000-11-23 2002-06-26 Cogifer TF Railway track for guided vehicle and apparatus comprising such a track
FR2827879A1 (en) * 2001-07-26 2003-01-31 Cogifer Rail track grooved rail comprises mushroom in upper part with convex running surface, groove separating flange from mushroom and base having plane support surface
FR2849454A1 (en) * 2002-12-30 2004-07-02 Cogifer Railway track device for guiding railway vehicle e.g. tram train, includes profiles, each comprising, in upper part, rolling surfaces inclined to plane supporting face at non-zero angle
WO2006034518A1 (en) * 2004-09-29 2006-04-06 Voestalpine Schienen Gmbh Running rail for a rail trough
JP2008514840A (en) * 2004-09-29 2008-05-08 フエーストアルピーネ・シーネン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Rail running rail
EP3617404A1 (en) * 2018-08-31 2020-03-04 Süß Joachim Rail and track structure with the rail

Also Published As

Publication number Publication date
AU7062691A (en) 1991-08-05
CN1054630A (en) 1991-09-18

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