EP1908880A1 - Couplage résistant à la flexion de rails - Google Patents

Couplage résistant à la flexion de rails Download PDF

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Publication number
EP1908880A1
EP1908880A1 EP07117272A EP07117272A EP1908880A1 EP 1908880 A1 EP1908880 A1 EP 1908880A1 EP 07117272 A EP07117272 A EP 07117272A EP 07117272 A EP07117272 A EP 07117272A EP 1908880 A1 EP1908880 A1 EP 1908880A1
Authority
EP
European Patent Office
Prior art keywords
anchor plate
sleepers
prestressed concrete
concrete sleepers
prestressing
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.)
Withdrawn
Application number
EP07117272A
Other languages
German (de)
English (en)
Inventor
Wolfgang Puntke
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.)
Durtrack AG
Original Assignee
Durtrack AG
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 Durtrack AG filed Critical Durtrack AG
Publication of EP1908880A1 publication Critical patent/EP1908880A1/fr
Withdrawn legal-status Critical Current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
    • E01B3/32—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement
    • E01B3/34—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement with pre-tensioned armouring or reinforcement
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B7/00—Switches; Crossings
    • E01B7/22—Special sleepers for switches or crossings; Fastening means therefor

Definitions

  • the invention relates to a method for producing prestressed concrete sleepers having end faces, wherein a plurality of prestressed concrete sleepers are produced in a long tensioning bed and the several prestressed concrete sleepers are penetrated by prestressing steel wires tensioned in the tensioning bed.
  • switch elements are pre-assembled in the switch plant and transported to the construction site.
  • Very long switch sleepers lead to bulky switch elements, which limit in particular the transport options.
  • particularly long switch sleepers are manufactured in appropriate partial lengths, preassembled in suitable partial switch elements and connected to one another at the construction site.
  • Prestressed concrete sleepers are in z. B. made 80 to 100 m long Spannbetten.
  • the prestressing steel wires are anchored and prestressed at the ends of the tensioning beds.
  • the required turnout thresholds are determined by dividing elements to be designated as shutdowns (see, for example, FIG. DE-A-195 19 617 ).
  • the sheds are removed as soon as the concrete at the ends of the sleepers has sufficient green strength. Between the individual sleepers this results in a concrete-free gap at which the continuously tensioned prestressing steel wires are exposed.
  • the end anchorages of the prestressing steel wires are gradually loosened, thereby transferring the prestressing force of the prestressing steel wires to the sleepers by direct bonding between the concrete and the profiled or ribbed prestressing steel wire surface.
  • the exposed between the sleeper ends prestressing steel wires are cut flush with the Schwellenend lake.
  • the prestressing force of the prestressing steel wires is steadily increasingly transmitted to the concrete from zero at the end of the sleeper within an inlet area until at the end of the inlet area the full prestressing force of the prestressing steel wires acts on the concrete cross section of the turnout sleeper.
  • the load-bearing capacity of the switch sleepers gradually decreases towards the end of the sleeper. This is insignificant for the normal application of the sleepers, but in view of the rigid connection, the tie ends and thus the coupling area constitute a weak point.
  • the concrete in the introduction area of the prestressing force is exposed to high splitting tensile stresses, so that connection connections in the concrete of the sleeper ends impair the performance of the sleepers Overburden concrete.
  • Anchorages of tendons for prestressed concrete sleepers may be formed by wedge anchors, such as these DE-A-35 36 926 or the EP-A-0 322 317 can be seen.
  • the connecting device for multi-part railroad track concrete sleepers which is intended to solve the problem of connecting the sleeper parts to a threshold unit equivalent in area of the connection with respect to the transmission of bending moment, shear force and normal force of an unpolluted threshold without this however, could be technically realized.
  • the connecting device consists of two steel H-shaped parts which are bolted together.
  • a two-piece reinforced concrete sleeper is from the DE-C-505 518 known, wherein the threshold parts are connected to each other via flat spring joints made of iron.
  • Prestressed concrete sleepers sections are after the DE-A-38 29 659 connected via the adjacent ends receiving sleeves, wherein the gap between the threshold sections and the sleeve is shed frictionally.
  • the present invention is therefore based on the object prestressed concrete sleepers, in particular prestressed concrete sleepers, rigidly connect so that the coupling region can accommodate at least the required by the threshold, in particular switch threshold rated torque.
  • the object is achieved by the measures to be taken from the claims, wherein individual measures are essential to the invention on their own or at least partially in combination.
  • the invention is represented by a method for producing prestressed concrete sleepers having end faces, wherein a plurality of prestressed concrete sleepers are produced in a long fitted bed and the several prestressed concrete sleepers are penetrated by prestressing prestressed steel wires, which are characterized in that along at least one end face of the prestressed concrete sleeper an anchor plate member extends in which at least the full or desired biasing force the prestressing steel wires are anchored to the end face.
  • the anchor plate element is biased by at least one prestressing steel with at least in the longitudinal direction of the threshold extending smooth surface, wherein preferably the prestressing steel is anchored in the threshold cross section with full bias.
  • the anchor plate is biased by the prestressing steel with at least the same preload force as the threshold.
  • the threshold ends to be connected are each equipped with at least one anchor plate element, which is preferably anchored with at least the full biasing force of the prestressing steel wires at the respective end of the threshold and is non-positively connected to the anchor plate element of the connection threshold section.
  • each individual prestressing steel wire is preferably anchored with the full biasing force to the respective anchor plate element at the threshold end.
  • the anchor plate element is prestressed by tension steels with a smooth surface, which are anchored in the threshold cross-section, preferably with full preload, with at least the same prestressing force as the threshold.
  • the different measures by which the anchor plate element are anchored with the full bias at the respective end can also be used in combination such that they bias in the sum of the anchor plate element with at least the same biasing force as the threshold. In this case is It is not necessary that the individual prestressing steel wires or the prestressing steels are each anchored to the anchor plate element with the full prestressing force.
  • the invention relates to a connection between two prestressed concrete sleepers such as prestressed concrete sleepers, wherein the connection is characterized in that the prestressed concrete sleepers are frictionally connected via anchored to the mutually facing end faces of the prestressed concrete sleepers anchor plate elements, wherein the anchor plate elements at the respective end face with preferably substantially full biasing force of the prestressed concrete sleepers passing through prestressing steel wires are anchored.
  • anchor plate elements are anchored via at least one U-shaped or loop-shaped prestressing steel within the prestressed concrete sleeper which has a smooth or essentially smooth surface at least in its region extending in the longitudinal direction of the reinforced concrete sleeper.
  • the prestressing steel wires may be connected to the anchor plate via prior art wedge anchors.
  • Typical wedge anchors are eg the DE-A-35 36 926 to refer to the disclosure of which is referred.
  • the prestressing steel wires can pass through wedges, which are inserted into geometrically adapted recesses or receptacles, which are also referred to as housing, in the anchor plate.
  • the wedge elements themselves should be multi-part segmental design or slotted in whole or in part.
  • a longitudinal edge of an anchor plate pass into a U-shaped receptacle into which the other anchor plate to be connected to the anchor plate can be inserted.
  • Opposite longitudinal edges of the anchor plates may be received by a clamping piece, which in turn is preferably connected by a bolt member with the U-shaped receptacle and clamped.
  • each longitudinal edge of the anchor plates is chamfered, that the respective adjacent longitudinal edges are received by a common clamping piece and that the respective longitudinal edges receiving clamping pieces are interconnected via a bolt element and clamped.
  • Fig. 1 is a schematic representation of a rigid coupling 10 between prestressed concrete sleepers 12, 14 reproduced.
  • anchor plates 16, 18 are anchored by wedge anchors, two of which are exemplified by the reference numerals 20, 22, prestressing steel wires, of which also by way of example some with the reference numerals 24, 26, 28, 30 are marked.
  • the prestressing steel wires 24, 26, 28, 30 with at least the full or desired biasing force to the respective end face of the concrete sleepers 12, 14, anchored.
  • each of the prestressing steel wires 24, 26, 28, 30 is anchored at the full pretensioning force to the respective anchor plate 16, 18 at the end of the sleeper.
  • prestressing steels 32, 34 run within the prestressed concrete sleepers 12, 14 and have a smooth surface at least in the longitudinal direction of the concrete sleepers 12, 14. As the schematic representation of FIG. 2 illustrates, are in the longitudinal direction of the concrete sleepers 12, 14 a smooth surface having prestressing steels 32, 34 loop or U-shaped in the respective threshold 12, 14 laid.
  • anchor plates 16, 18 are at least non-positively connected via clamping pieces 36, 38, which in turn can be braced via a bolt element 40.
  • the prestressing steel wires 24, 26, 28, 30, 32, 34 can be fixed and tensioned via wedge anchors, two of which are designated in FIG. 4 by the reference numerals 42, 44.
  • Fig. 5 which shows a section along the line B-B in Fig. 4, the anchor plate 18 is shown, which extends along the end face of the concrete sleeper 14. It can be seen that in the face or anchor plate 18 a total of 8 wedge anchors are provided to anchor the prestressing steel wires 24, 26, 28, 30, 32, 34 with the full or desired biasing force to the face of the concrete sleepers 12, 14.
  • the wedge anchors 44 consist of a housing 46, in which a multi-part segment-like or wholly or partially slotted wedge element 48 can be used, the of which is penetrated to exciting prestressing steel wire.
  • the clamping can be done by the prestressing steel wire detecting presses.
  • FIG. 8 should be clarified in principle that the housing 46 in the respective anchor plate 16, 18 are screwed.
  • the anchor plates 16, 18 in its upper and lower edge 50, 52, which is referred to as a longitudinal edge, chamfered so that the anchor plates 16, 18 in correspondingly geometrically adapted receptacles 54, 56 of the clamping pieces 36, 38th can be used, which are connected via the anchor plates 16, 18 passing bolts 40 and clamped.
  • FIGS. 11 and 12 an alternative connection possibility between anchor plates 58, 60 is shown.
  • the left anchor plate 58 on the foot side an L-shaped and a receptacle 60 forming welded leg 62.
  • the receptacle 60 is geometrically designed such that in this the chamfered lower longitudinal edge 64 of the anchor plate 60 is inserted.
  • the opposite edges 66, 68 are received by a clamping piece 70, which corresponds to the previously described embodiment.
  • the clamping piece 70 is then penetrated by a bolt 72 which is screwed into the leg 62, so as to ensure the frictional connection between the armature plates 58, 60 and the clamping of the clamping piece 70.
  • a base plate 72 - also called base plate element - a concrete sleeper is shown, which is not positively connected to a further plate, that extends along a free end of a concrete sleeper.
  • the corresponding base plate 72 also has partial anchors to anchor the prestressing steel wires with the full or desired biasing force to the end face according to the teaching of the invention.
  • the base plate may be referred to as an anchor plate having the above-described properties or effects.
  • threshold sections especially points sleepers can be rigidly connected in such a way that the coupling reaches the same carrying capacity as the switch threshold in its range with full bias.
  • the Schwellenteil Scientific Republice be rigidly connected so that the coupling region can accommodate at least the required by the turnout threshold rated moment by the connected end to be connected to at least one armature plate element anchored with at least the full biasing force of the prestressing steel wires at each threshold end and the anchor plate element the connection threshold piece is positively connected.
  • each individual prestressing steel wire can be anchored to the respective anchor plate element at the threshold end with the full prestressing force.
  • the anchor plate member may be further biased by tensioning wires with a smooth surface, which are anchored in the threshold cross-section with full bias, with at least the same biasing force as the threshold.
  • tensioning wires with a smooth surface which are anchored in the threshold cross-section with full bias, with at least the same biasing force as the threshold.
  • the relevant possibilities can be used in such a way that they bias the sum of the anchor plate elements with at least the same biasing force as the threshold.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP07117272A 2006-09-27 2007-09-26 Couplage résistant à la flexion de rails Withdrawn EP1908880A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006045967 2006-09-27
DE102007014529A DE102007014529A1 (de) 2006-09-27 2007-03-27 Biegesteife Koppelung von Schwellen

Publications (1)

Publication Number Publication Date
EP1908880A1 true EP1908880A1 (fr) 2008-04-09

Family

ID=38961809

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07117272A Withdrawn EP1908880A1 (fr) 2006-09-27 2007-09-26 Couplage résistant à la flexion de rails

Country Status (2)

Country Link
EP (1) EP1908880A1 (fr)
DE (1) DE102007014529A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009049411A1 (de) 2009-10-14 2011-04-21 Db Netz Ag Spannbetonschwelle sowie Verfahren zum Transport und Einbau einer Weiche mit Spannbetonschwellen
DE102010035675A1 (de) 2010-08-27 2012-03-01 Db Netz Ag Klappbare Weiche

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB240757A (en) * 1925-05-11 1925-10-08 Charles Jones Improvements in reinforced concrete railway sleepers and the like
DE3832505A1 (de) * 1988-09-24 1990-03-29 Dyckerhoff & Widmann Ag Eisenbahnschwelle aus spannbeton (kennwort: gelenkschwelle)
DE19519617A1 (de) * 1995-05-29 1996-12-05 Pfleiderer Verkehrstechnik Vorrichtung und Verfahren zur Herstellung von Spannbeton-Eisenbahnschwellen
EP1026321A1 (fr) * 1999-02-06 2000-08-09 Pfleiderer Infrastrukturtechnik GmbH & Co. KG Raccord en acier pour traverses de chemins de fer, notamment traverses en béton précontraint pour aiguillages

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE505518C (de) * 1930-12-30 Carl Doerr Zweiteilige Eisenbetonschwelle, bei welcher die Teile durch ein waagerechtes Flachfedergelenk aus Eisen verbunden sind
DE1010088B (de) * 1954-07-14 1957-06-13 Leonhard Moll Bauunternehmung Spannbetonschwelle
DE3536926A1 (de) * 1985-10-17 1987-04-23 Paul Maschinenfabrik Gmbh & Co Keilverankerung zum vorpressen
FR2625241B1 (fr) * 1987-12-23 1991-09-27 Chaize Alain Dispositif de blocage pour armature allongee sous tension
DE3829659A1 (de) * 1988-09-01 1990-03-22 Wayss & Freytag Ag Verfahren zum koppeln von spannbetonschwellen und mittel zur durchfuehrung des verfahrens
DE29906351U1 (de) * 1999-02-06 1999-07-08 Pfleiderer Infrastrukturtechnik GmbH & Co. KG, 92318 Neumarkt Stählerne Verbindungsvorrichtung für Schwellen für schienengebundene Verkehrswege, insbesondere von Spannbeton-Weichenschwellen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB240757A (en) * 1925-05-11 1925-10-08 Charles Jones Improvements in reinforced concrete railway sleepers and the like
DE3832505A1 (de) * 1988-09-24 1990-03-29 Dyckerhoff & Widmann Ag Eisenbahnschwelle aus spannbeton (kennwort: gelenkschwelle)
DE19519617A1 (de) * 1995-05-29 1996-12-05 Pfleiderer Verkehrstechnik Vorrichtung und Verfahren zur Herstellung von Spannbeton-Eisenbahnschwellen
EP1026321A1 (fr) * 1999-02-06 2000-08-09 Pfleiderer Infrastrukturtechnik GmbH & Co. KG Raccord en acier pour traverses de chemins de fer, notamment traverses en béton précontraint pour aiguillages

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009049411A1 (de) 2009-10-14 2011-04-21 Db Netz Ag Spannbetonschwelle sowie Verfahren zum Transport und Einbau einer Weiche mit Spannbetonschwellen
WO2011045018A1 (fr) 2009-10-14 2011-04-21 Db Netz Ag Traverse en béton précontraint ainsi que procédé de transport et de montage d'un aiguillage avec des traverses en béton précontraint
DE102010035675A1 (de) 2010-08-27 2012-03-01 Db Netz Ag Klappbare Weiche
WO2012025170A1 (fr) 2010-08-27 2012-03-01 Db Netz Ag Aiguillage rabattable
US9145647B2 (en) 2010-08-27 2015-09-29 Rail.One Gmbh Folding switch

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