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EP0628660B1 - Rail bar - Google Patents

Rail bar Download PDF

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Publication number
EP0628660B1
EP0628660B1 EP19940201449 EP94201449A EP0628660B1 EP 0628660 B1 EP0628660 B1 EP 0628660B1 EP 19940201449 EP19940201449 EP 19940201449 EP 94201449 A EP94201449 A EP 94201449A EP 0628660 B1 EP0628660 B1 EP 0628660B1
Authority
EP
European Patent Office
Prior art keywords
rail
rail bar
specific mass
bar
low specific
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
EP19940201449
Other languages
German (de)
French (fr)
Other versions
EP0628660A1 (en
Inventor
Robbert Vogelaar
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.)
Edilon BV
Original Assignee
Edilon BV
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 Edilon BV filed Critical Edilon BV
Publication of EP0628660A1 publication Critical patent/EP0628660A1/en
Application granted granted Critical
Publication of EP0628660B1 publication Critical patent/EP0628660B1/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
    • E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
    • E01B19/003—Means for reducing the development or propagation of noise
    • 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

  • the invention relates to a rail bar of which at least the web recess is filled from head to base with a mouldable material of a low specific mass.
  • Rail and tramway services cause noise nuisance. Particularly for instance where the train or tram moves through a bend in the route, a high screeching noise level is generated which strikes the human ear as being unpleasant. In built-up areas it is the intention to counter this nuisance by placing sound-insulating walls and the like. In the case of tram services in a built-up area this is not possible, or hardly so.
  • EP-A-0 404 756 discloses a rail bar whereof the web recess is filled to at least the head and the base of the rail with a mouldable material. Furthermore, the interposing of a rubber material between the rail and a underlying steelplate is known from this publication.
  • Said body absorbs the vibration energy generated in the rail bar.
  • the body can for instance be of steel.
  • a suitable material for the application according to the invention is a polymer filled with finely divided cells, for instance cork particles. This product is commercially available under the name Corkelast®.
  • the material can be arranged in the web recess of the rail bar by means of casting.
  • an element in the form and size of the web recess of the rail bar can be arranged by means of adhesive.
  • a further improvement can be achieved by arranging the rail bars on the support of the rail bar with interposing of a support layer of flexible material with a specific mass equal to or lower than that of the surrounding mass.
  • a layer of material of low specific mass can be arranged between the flexible support layer and the rail bar.
  • a further improvement in the operation of a railway system is obtained by use of rail bars according to the invention.
  • the invention is elucidated with reference to a drawing of an embodiment.
  • Figures 1 to 3 do not show the arrangement of a rod-like body according to the invention.
  • the rail bar 1 according to the invention can be secured to a sleeper 2 of a railway 3 using rail clips 4 and 5.
  • the web recess 6, 7 of rail 1 is filled with a material with a low specific mass, for instance Corkelast®.
  • the material can be cast in or, in the case of an already placed rail, an element 8 of Corkelast® as according to figure 3 can be fixed by gluing into the form of the web recess of the rail.
  • a body 10, 11 (see Figure 4) of considerably higher specific mass is arranged in the mass 6, 7, 8 of low specific weight.
  • the bodies 10, 11 can for instance be a cylindrical steel rod.
  • the rods 10 and 11 absorb the vibration energy generated by the rail and transmitted via the mass 9 to the rods 10 and 11.
  • the rail bar and the surrounding masses can be arranged in a support 12 with interposition of a supporting layer 13 of flexible material with a specific mass equal to or lower than that of the mass 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Lubricants (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Description

  • The invention relates to a rail bar of which at least the web recess is filled from head to base with a mouldable material of a low specific mass.
  • Rail and tramway services cause noise nuisance. Particularly for instance where the train or tram moves through a bend in the route, a high screeching noise level is generated which strikes the human ear as being unpleasant. In built-up areas it is the intention to counter this nuisance by placing sound-insulating walls and the like. In the case of tram services in a built-up area this is not possible, or hardly so.
  • EP-A-0 404 756 discloses a rail bar whereof the web recess is filled to at least the head and the base of the rail with a mouldable material. Furthermore, the interposing of a rubber material between the rail and a underlying steelplate is known from this publication.
  • It is the object of the invention to prevent the problem of noise nuisance at the source and to bring about vibration damping, that is, the attempt is made to prevent the occurrence of the noise.
  • This is achieved according to the invention by employing a rail bar whereof a rod-like body of considerably greater specific mass is arranged in said mouldable material of low specific mass, near the base of the rail.
  • Said body absorbs the vibration energy generated in the rail bar. The body can for instance be of steel.
  • A suitable material for the application according to the invention is a polymer filled with finely divided cells, for instance cork particles. This product is commercially available under the name Corkelast®.
  • The material can be arranged in the web recess of the rail bar by means of casting.
  • In existing rail constructions an element in the form and size of the web recess of the rail bar can be arranged by means of adhesive.
  • A further improvement can be achieved by arranging the rail bars on the support of the rail bar with interposing of a support layer of flexible material with a specific mass equal to or lower than that of the surrounding mass. A layer of material of low specific mass can be arranged between the flexible support layer and the rail bar.
  • A further improvement in the operation of a railway system is obtained by use of rail bars according to the invention.
  • The invention is elucidated with reference to a drawing of an embodiment.
  • Figure 1 shows a view of a rail bar according to the invention on a railway,
  • Figure 2 shows in cross sectional view a rail bar according to the invention,
  • Figure 3 shows an element of Corkelast® in the form and with the size of the web recess of a rail bar, and
  • Figure 4 shows a second embodiment in cross sectional view.
  • Figures 1 to 3 do not show the arrangement of a rod-like body according to the invention.
  • The rail bar 1 according to the invention can be secured to a sleeper 2 of a railway 3 using rail clips 4 and 5. According to the invention the web recess 6, 7 of rail 1 is filled with a material with a low specific mass, for instance Corkelast®. The material can be cast in or, in the case of an already placed rail, an element 8 of Corkelast® as according to figure 3 can be fixed by gluing into the form of the web recess of the rail. A body 10, 11 (see Figure 4) of considerably higher specific mass is arranged in the mass 6, 7, 8 of low specific weight. The bodies 10, 11 can for instance be a cylindrical steel rod. The rods 10 and 11 absorb the vibration energy generated by the rail and transmitted via the mass 9 to the rods 10 and 11.
  • According to a second embodiment as in figure 4, the rail bar and the surrounding masses can be arranged in a support 12 with interposition of a supporting layer 13 of flexible material with a specific mass equal to or lower than that of the mass 9.

Claims (6)

  1. Rail bar of which at least the web recess is filled from head to base with a mouldable material (6, 7, 8) of a low specific mass, characterized in that a rod-like (10, 11) of considerably greater specific mass is arranged in said mouldable material of low specific mass, near the base of the rail, said body absorbing the vibration energy generated in the rail bar.
  2. Rail bar as claimed in claim 1, characterized in that said body is of steel.
  3. Rail bar as claimed in claims 1 or 2, characterized in that the rail is arranged in a rail support (12) with interposing of a supporting layer (13) of flexible material and a layer of material (9) with a low specific mass.
  4. Rail bar as claimed in claims 1-3, characterized in that an element (8) with the form and dimensions of the web recess is glued into the rail bar.
  5. Rail bar as claimed in claims 1-4, characterized in that the specific mass of the material (6, 7, 8, 9) is about 1.
  6. Railway system with rail bars as claimed in one or more of the claims 1-5.
EP19940201449 1993-05-25 1994-05-24 Rail bar Expired - Lifetime EP0628660B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9300891A NL9300891A (en) 1993-05-25 1993-05-25 Rail.
NL9300891 1993-05-25

Publications (2)

Publication Number Publication Date
EP0628660A1 EP0628660A1 (en) 1994-12-14
EP0628660B1 true EP0628660B1 (en) 2000-09-20

Family

ID=19862438

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940201449 Expired - Lifetime EP0628660B1 (en) 1993-05-25 1994-05-24 Rail bar

Country Status (5)

Country Link
EP (1) EP0628660B1 (en)
DE (1) DE69425927T2 (en)
ES (1) ES2152287T3 (en)
HU (1) HU216418B (en)
NL (1) NL9300891A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6354512B2 (en) 1996-11-04 2002-03-12 Hyperlast Limited Polymer embedment of rails
US6390382B1 (en) 1997-09-19 2002-05-21 Corus Uk Limited Rail fixings
WO2005009817A2 (en) 2003-07-11 2005-02-03 Pandrol Limited Tuned absorbers for railway rails

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2738263B1 (en) * 1995-09-06 1997-10-31 Hutchinson NOISE ABSORBER FOR RAILS OF A RAIL TRACK
NL1001541C2 (en) * 1995-10-31 1997-05-02 Stichting Geluidarme Spoorbrug Railway construction, especially for bridge or viaduct.
NL1006180C2 (en) * 1997-05-30 1998-12-10 Holland Railconsult Supporting member for supporting rails and a method for manufacturing them.
DE19911467A1 (en) 1999-03-15 2000-09-21 Knape Vermoegensverwaltungs Gm Track construction with insulated / elastic mounting of rails on a support layer formed around insulating material / elastic material
FR2798106B1 (en) * 1999-09-08 2001-10-12 Pomagalski Sa LOAD BEARING SYSTEM
DE10045001A1 (en) * 2000-09-11 2002-04-04 Johann Resch Srail
NL1021990C2 (en) * 2002-11-25 2004-05-26 Edilon Bv Rail construction with cladding structure.
GB2399124B (en) 2003-03-05 2006-07-26 Corus Uk Ltd Rail damper
GB2399123B (en) 2003-03-05 2006-03-01 Corus Uk Ltd Rail damper
NL1026515C2 (en) 2004-06-29 2005-12-30 Heerema Silent Bridges B V Rail construction, especially for railway bridge or viaduct, has elastic mat between each track rail and rail support plate for reducing train noise
NL1036128C (en) 2008-10-29 2010-05-03 Heatpoint B V HEATING FOR RAIL SWITCHES.
CN203546523U (en) * 2013-07-30 2014-04-16 中铁二院工程集团有限责任公司 Passive dynamic vibration absorbing track slab
KR102171822B1 (en) * 2018-09-06 2020-10-29 한양대학교 산학협력단 Apparatus to reduce vibration
CN112853825B (en) * 2021-01-13 2022-04-26 华东交通大学 An adjustable quasi-periodic damping rail
EP4409156A1 (en) 2021-10-01 2024-08-07 ArcelorMittal Vibration damper for railway tracks and a method of manufacturing thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE16774C (en) * E. L. TAYLOR in Philadelphia, V. St. A Innovations to wagon wheels
DE3439252A1 (en) * 1984-10-26 1986-05-07 Lothar 8700 Würzburg Eisner RAIL INSTALLATION MATERIAL
NL8502169A (en) * 1985-07-31 1987-02-16 Edilon Bv RAIL, IN WHICH RAILWAYS SUPPORT AGAINST RIGID SUPPORT PLATES THROUGH ELASTIC BRACKETS, AND METHOD FOR LAYING SUCH A RAIL
DE3716070A1 (en) * 1987-05-14 1988-12-01 Messerschmitt Boelkow Blohm DISC WHEEL, ESPECIALLY FOR RAIL VEHICLES
AT395738B (en) * 1989-06-19 1993-02-25 Porr Allg Bauges UPPER STRUCTURE WITH RAILS AND METHOD FOR PRODUCING THE SAME

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6354512B2 (en) 1996-11-04 2002-03-12 Hyperlast Limited Polymer embedment of rails
US6390382B1 (en) 1997-09-19 2002-05-21 Corus Uk Limited Rail fixings
WO2005009817A2 (en) 2003-07-11 2005-02-03 Pandrol Limited Tuned absorbers for railway rails

Also Published As

Publication number Publication date
HU216418B (en) 1999-06-28
NL9300891A (en) 1994-12-16
HU9402859D0 (en) 1995-01-30
DE69425927T2 (en) 2001-03-29
EP0628660A1 (en) 1994-12-14
HUT74133A (en) 1996-11-28
DE69425927D1 (en) 2000-10-26
ES2152287T3 (en) 2001-02-01

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