EP0021873B1 - Blochet de voie ferrée surbaissée, notamment pour voie ferrée sans ballast - Google Patents

Blochet de voie ferrée surbaissée, notamment pour voie ferrée sans ballast Download PDF

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Publication number
EP0021873B1
EP0021873B1 EP80400692A EP80400692A EP0021873B1 EP 0021873 B1 EP0021873 B1 EP 0021873B1 EP 80400692 A EP80400692 A EP 80400692A EP 80400692 A EP80400692 A EP 80400692A EP 0021873 B1 EP0021873 B1 EP 0021873B1
Authority
EP
European Patent Office
Prior art keywords
sole
tie
ribs
rail
concrete
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
Application number
EP80400692A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0021873A1 (fr
Inventor
René Munier
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.)
Renault SA
Original Assignee
Regie Nationale des Usines Renault
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 Regie Nationale des Usines Renault filed Critical Regie Nationale des Usines Renault
Priority to AT80400692T priority Critical patent/ATE4735T1/de
Publication of EP0021873A1 publication Critical patent/EP0021873A1/fr
Application granted granted Critical
Publication of EP0021873B1 publication Critical patent/EP0021873B1/fr
Expired 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
    • E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
    • E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
    • E01B3/40—Slabs; Blocks; Pot sleepers; Fastening tie-rods to them
    • 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

Definitions

  • the present invention relates to a construction of a concrete-steel railroad blocker where the rails bear on blocks of reinforced concrete, called blocks, optionally connected two by two in a crosspiece by a metal frame with ends sealed in said blocks.
  • This type of block is used mainly in so-called ballast-free tracks, where the blocks rest on plates of vibration damping material, in direct support on a concrete screed, in which they are generally embedded.
  • These tracks are in particular in rail transport networks in tunnels, where the absence of ballast makes it possible to significantly reduce the height of the tunnel.
  • the reinforced concrete structure oblique blocks to give them a certain dimensional mass to acquire the strength and rigidity required. Account must be taken of the significant concentrated pressures on the center of the block vertical to the rail during the passage of trains, tending to make the latter work in bending on repeated central support which is undesirable for concrete parts. This therefore results, in order to resist these flexions, necessarily fairly massive blocks, in particular in height, which go against the desired objective of a track assembly as low as possible.
  • US-A-1788913 describes a low railroad block of the type reinforced concrete with a metal saddle of general shape in inverted U; the base or sole of the rectangular saddle receives the support and the fixing of the rail and is extended downward by ribs sealed in the concrete of the block, forming a frame.
  • the present invention relates to a block structure according to the preamble of claim 1 which does not have the above drawbacks, while retaining sufficient strength and being of simple and economical construction. It is characterized in that the sole of the saddle covers most of the upper surface of the block by being stiffened by a network of solid ribs crisscrossing its lower volume and in that the ribs have a decreasing height from their support area of the rail towards the ends of the saddle, giving it a beam shape of equal flexural strength.
  • the saddle can be made of molded metal such as cast iron, the support sole of the rail then being stiffened by a network of ribs obtained by molding, these ribs crisscrossing for example the lower surface of the sole.
  • This sole will advantageously be bordered by a peripheral rib comprising external ribs at the connection points with the internal grid ribs, on the longitudinal edge of the sole, to increase the anchoring of the reinforcement.
  • the saddle will be a steel plate cut out and folded into a U-shaped profile.
  • the two wings of this U-shaped section can be fitted by wedging in the external frame of a reinforcement frame in a flat grid formed of round concrete iron.
  • the support stops and the fixing holes of the rail fasteners will be fitted in the sole of the saddle and produced, depending on the type of construction, either directly by foundry, or by cutting, embedding and / or welding of added elements.
  • a rail 1 fixed in the usual way by fasteners 2 rests on a sole 3 forming the upper plate of a saddle 4 made of cast material such as cast iron.
  • Said sole extends vertically downwards by a network of ribs 5, sealed in the concrete of a block 6.
  • the sole 3 and its network of ribs 5 give the saddle 4 a very resistant and rigid ribbed beam structure in flexion .
  • the sole 3 has reliefs 7 forming the support stops for the rail fixing system and orifices 8 for passage and for fixing the bolt heads of the rail fasteners 2.
  • FIGS. 1 and 2 show a network of ribs 5 crisscrossing the bottom surface of the sole 3 and slightly protruding at 9, their junction with a peripheral rib of the sole 3, which increases the anchoring of the sole in the concrete block 6 and avoids any other conventional auxiliary frame.
  • the block 6 is shown equipped with a liner 10 and a sole 11 of the type used for damping vibrations in tracks without ballast.
  • the saddle 4 can be made of thick sheet metal cut and folded into a U as shown in FIGS. 4, 5 and 6 where , for the sake of simplification of the drawings, the rail fastening systems 1 have not been shown, but will be fitted out with suitable holes in the sole 3 and stops which can either be wedged in such holes, cut directly, or made up of metal studs welded to this sole according to the types of fastening used.
  • the inherent limitations of this embodiment limit the ribs 5 to two longitudinal ribs giving the saddle the shape of a U-beam. These longitudinal wings have, as in the previous case, a decreasing height from the middle to the ends in a shape d equal conventional resistance for such beams working in bending.
  • This limitation to the two longitudinal ribs is compensated for by a reinforcing reinforcement in conventional round concrete iron, but presenting itself, as indicated in FIGS. 4 and 6, like a flat grid 12 which can be wedged, by its external frame 13, and other ribs 5, taking advantage of their residual folding inclination. This wedging at 14 allows the reinforcement 13 to be held in place during the pouring and setting of the concrete.
  • the concrete block 6 has a height reduced to the strict minimum for coating the lower part of the saddle 4 and that its role is limited to transmitting by simple compression, a constraint for which this material is well suited, the concentrated pressures of the rail 1, received through the saddle 4, to the damping plate 11, in the form of a uniformly distributed pressure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Holders For Apparel And Elements Relating To Apparel (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Road Signs Or Road Markings (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Golf Clubs (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
EP80400692A 1979-06-15 1980-05-20 Blochet de voie ferrée surbaissée, notamment pour voie ferrée sans ballast Expired EP0021873B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400692T ATE4735T1 (de) 1979-06-15 1980-05-20 Schwellenblock fuer eisenbahngleis mit geringer bauhoehe, insbesondere fuer schotterloses eisenbahngleis.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7915391A FR2459327B1 (fr) 1979-06-15 1979-06-15 Blochet de voie ferree surbaissee, notamment pour voie ferree sans ballast
FR7915391 1979-06-15

Publications (2)

Publication Number Publication Date
EP0021873A1 EP0021873A1 (fr) 1981-01-07
EP0021873B1 true EP0021873B1 (fr) 1983-09-21

Family

ID=9226679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400692A Expired EP0021873B1 (fr) 1979-06-15 1980-05-20 Blochet de voie ferrée surbaissée, notamment pour voie ferrée sans ballast

Country Status (10)

Country Link
US (1) US4381076A (cs)
EP (1) EP0021873B1 (cs)
JP (1) JPS563701A (cs)
AT (1) ATE4735T1 (cs)
BR (1) BR8003704A (cs)
CA (1) CA1140517A (cs)
DE (1) DE3064898D1 (cs)
FR (1) FR2459327B1 (cs)
IN (1) IN153689B (cs)
ZA (1) ZA803341B (cs)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491105A1 (fr) * 1980-09-29 1982-04-02 Sonneville Roger Dispositif pour la fixation d'un rail sur un support en beton
DE3315697A1 (de) * 1983-04-29 1984-11-08 Klöckner-Werke AG, 4100 Duisburg Schallminderndes gleiselement
FR2693750B1 (fr) * 1992-07-20 1994-10-21 Allevard Ind Sa Dispositif de support d'un rail de chemin de fer en voie sans ballast.
USD345119S (en) 1992-10-26 1994-03-15 Jay Cox Railroad tie with quick lock sockets
KR20040017012A (ko) * 2002-08-20 2004-02-26 최진욱 철도 레일 받침대
JP6183800B2 (ja) * 2013-06-19 2017-08-23 Ｊｆｅスチール株式会社 コークス炉および装炭車軌条受台の設置方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE421322A (cs) *
US942650A (en) * 1909-05-22 1909-12-07 Henry C Krepps Railroad-tie.
US1071361A (en) * 1912-12-26 1913-08-26 Thomas C Sisk Railway tie and spike.
GB191311951A (en) * 1913-05-22 1914-05-22 Louis Green Improvements in or relating to Reinforced Concrete Railway Sleepers and Rail Supports therefor.
US1128668A (en) * 1914-10-16 1915-02-16 David S Earll Combined track-gage and rail-fastener.
US1351819A (en) * 1920-04-06 1920-09-07 Charles O Whitcomb Railroad-tie
CH97008A (fr) * 1921-02-07 1922-12-16 Permanent Railway Tie Corp Traverse de chemin de fer.
US1622259A (en) * 1926-06-10 1927-03-22 Harvey J Lipham Concrete railroad tie
US1788913A (en) * 1929-12-18 1931-01-13 Richard F Greenwood Railroad tie of composite reenforced concrete
GB488153A (en) 1936-12-12 1938-07-01 Alfredo Rosselli An improved support for a railway rail
US2201047A (en) * 1938-12-01 1940-05-14 Aetna Iron & Steel Co Structural member and method of making same
US3333389A (en) * 1964-06-29 1967-08-01 Lihap Ind Tapered girder construction
SE373821B (cs) * 1972-02-29 1975-02-17 Swedish Rail System Ab Srs
US3960637A (en) * 1973-07-23 1976-06-01 Ostrow Paul F Composite structural member

Also Published As

Publication number Publication date
EP0021873A1 (fr) 1981-01-07
ATE4735T1 (de) 1983-10-15
BR8003704A (pt) 1981-01-13
IN153689B (cs) 1984-08-04
FR2459327B1 (fr) 1986-02-28
ZA803341B (en) 1981-05-27
CA1140517A (fr) 1983-02-01
JPS563701A (en) 1981-01-16
US4381076A (en) 1983-04-26
FR2459327A1 (fr) 1981-01-09
DE3064898D1 (en) 1983-10-27

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