EP0249574A2 - Concrete sleeper system - Google Patents

Concrete sleeper system Download PDF

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Publication number
EP0249574A2
EP0249574A2 EP87730062A EP87730062A EP0249574A2 EP 0249574 A2 EP0249574 A2 EP 0249574A2 EP 87730062 A EP87730062 A EP 87730062A EP 87730062 A EP87730062 A EP 87730062A EP 0249574 A2 EP0249574 A2 EP 0249574A2
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EP
European Patent Office
Prior art keywords
sleeper
concrete
rail
sleepers
supports
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Granted
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EP87730062A
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German (de)
French (fr)
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EP0249574B1 (en
EP0249574A3 (en
Inventor
Günter Dipl.-Ing. Fasterding
Jürgen Dipl.-Ing. Frenzel
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Preussag Stahl AG
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Preussag Stahl AG
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Priority to AT87730062T priority Critical patent/ATE60381T1/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
    • E01B9/04—Fastening on wooden or concrete sleepers or on masonry without clamp members
    • E01B9/14—Plugs, sleeves, thread linings, or other inserts for holes in sleepers
    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • E01B9/681—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by the material

Definitions

  • the invention relates to a concrete sleeper system for track systems according to the preamble of claim 1.
  • Concrete sleepers are suitable rail supports for the railway superstructure both in ballast beds and on solid concrete or asphalt surfaces. On the one hand, they have the task of fixing the rails true to the track and, on the other hand, to give the rail track the necessary elasticity due to its relatively short bearing surface for the rails in the event of a rolling load. During operation, these sleepers are subjected to pressure, bending, torsion and transverse displacement. An overlay of the underside of the sleeper in the fullest possible length ensures a good pressure distribution into the ground, especially with ballast beds.
  • Y sleepers can achieve a considerably better load distribution for a given nominal distance of the support points of the rails according to the distance between the usual rod-shaped concrete sleepers.
  • a smaller distance between the supports would be desirable and / or a higher resistance to torsional fracture, since an opposing moment load occurs in the fork of the Y-sleeper when the sleeper's axis of symmetry is operating.
  • Rail fastening (GB-PS 861473) is widespread, in which the rail foot is first fixed to a metal base plate by means of a steel spring and the metal base plate is fixed to the threshold by further clamping means.
  • the mass problem is met by a Y-shaped concrete tie, which saves approx. 20% of the concrete mass per unit length, with the same or better rail bearing.
  • the concrete cross sleeper according to the invention with two or more supports for the rail per sleeper end can be usefully used in particular in heavily loaded track sections such as light rail lines, high-speed lines and heavy-duty lines.
  • the fixed bearing Element threshold remain stable against torsion and bending fracture.
  • this is achieved, on the one hand, by distributing the threshold load to three points at each threshold end and, on the other hand, by using known polymer concrete made of colloidal cement and 4-10% addition of polymers such as polyvinyl acetate.
  • a concrete threshold with chopped or layered GRP fibers could also be used.
  • the technological properties of these composites are considerably better than those of conventional concrete or prestressed concrete. If necessary, the particularly stressed parts of the threshold determined on the basis of a stress analysis can be stabilized from a mixture of the composite materials or by adding long-fiber carbon fibers or glass fibers.
  • This reinforcement technology has the advantage that electrically conductive material is avoided, which could cause disturbances in track current detection systems by induction or conduction (electrolyte formation in rainwater between rail and threshold or threshold reinforcement).
  • the threshold system can also be used to prevent the magnetic field of DC-powered vehicles from being influenced.
  • the new concrete cross sleepers can be connected to the ground using so-called Nelson anchors; this contributes to the stiffening of the threshold as a rail support.
  • the reinforcement of the threshold at the particularly stressed points by connecting those for the tie rods, eg sleepers screwing, dowels cast into the concrete using a plastic bridge or fiber rope, can be done according to the invention in several ways: - by connecting the screw anchors on a rail to a crossbar, - by connecting the dowels on the inside of the rails, - by connecting all dowels and the Nelson anchor attachment.
  • the attachment point for the Nelson anchor could also be included in the reinforcement.
  • the cast-in dowels can also extend through to the underside of the threshold and be open at the bottom so that any penetrating electrolytes, such as rainwater etc., can drain off.
  • a metal base plate can first be arranged on the concrete sleeper, which in turn carries two resilient, insulated support elements made of preferably polyethylene or other environmentally resistant plastics. This results in a lower specific load on the threshold.
  • This type of support should be used in particular if the track bed is made of asphalt or concrete.
  • the plastic plates must then simulate or adopt the elastic sinking behavior of a ballast bed so that the track has an overall elastic characteristic despite the relatively rigid rails and sleepers. This is important for a long service life and break resistance of the track system at the extremely prevailing summer / winter temperatures of approx. 230 K to 350 K.
  • the known steel spring bracing of the rail foot with the metal base plate can be used.
  • the metal base plate can be pre-assembled at the factory so that no screwing tools are required when laying rails. This also prevents the rail from being braced with excessive screw torques.
  • the raised support surfaces on the sleeper end can be created particularly easily if the sleeper concrete casting mold is designed for each support in such a way that at each sleeper end two bumps which emerge from the later sleeper surface are formed. An elastic rail pad is then placed on these humps, if necessary under high load with the insertion of a metal intermediate plate.
  • the elastic rail underlay can also be designed as a continuous plate or molded body, each covering two humps located at a sleeper end, with lateral guides for fixing the position on the sleeper or the hump. If this plate is elastic enough, nothing changes in the three-point bracing of the rail foot on the threshold.
  • Two adjacent rod-shaped threshold ends 1 of concrete cross sleepers made of polymer concrete have wedge surfaces 14 with an inclination 1:40 to the center of the track (FIG. 1).
  • Bearings 3, 4, 5, 6 made of resilient, electrically insulating plastic plates for the rail foot 13 of the rail 2 are arranged on the wedge surfaces 14.
  • the center distance between the supports 4 and 5 is 600 mm, between the supports 3 and 4 or 5 and 6 170 mm.
  • the rail foot 13 is fixed in the center between the supports 3, 4 and 5, 6 by guide plates 7 and clamping brackets 8 resting in the groove 16 and the screws 9 inserted in dowels 17 (FIG. 2).
  • a slot 10 is provided for receiving a Nelson anchor 12, which is braced against the mounting surface 11 with the nut 15 via the washer 23.
  • the Nelson anchor 12 has previously been welded to a strip steel 21 cast in the asphalt bed 22 by means of a stud welding device, not shown.
  • Fig. 3 shows a section through a concrete cross sleeper two different reinforcement techniques and screw dowel trusses.
  • a cross member 18 made of GRP is cast in for the rail fastening on both sides in the sleeper end 1 and thus secures a critical point of the sleeper against breaking out.
  • an end 1 of a concrete threshold is shown, which encloses a reinforcement cross member 20, the webs 19 of which consist of glass fiber laminates laminated to the dowels 17 made of polyethylene, lengthways extend through the entire threshold and end in arm 24 with a hole for the Nelson anchor, not shown.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Railway Tracks (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Bridges Or Land Bridges (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Road Paving Structures (AREA)
  • Aftertreatments Of Artificial And Natural Stones (AREA)

Abstract

Modern D.C.-tractioned trains and track circuit signal systems as well as high load trains need a special track construction. A new concrete cross sleeper system is provided for high load and high velocity tracks as well as for urban rapid transit systems comprising rails and sleepers having center part, connected to bar shaped ends and having reinforcing means. On the bar shaped ends two rail seats for each rail are positioned having elastic, electrically non-conducting plastic pads. The rails are fastened onto the rail seat by special tension means clamping the foot of the rail and fixed into plugs in the sleepers. This feature allows a triple point fixing of the rail at each sleeper end. Tracks on asphalt pavement may be secured by anchor device of the general type as sold under the trademark NELSON. The new track construction decreases the intermittent load of the rail/sleeper system and avoids trouble in track circuit signal systems existing in normally used prestressed concrete sleepers (FIG. 1).

Description

Die Erfindung betrifft ein Betonschwellensystem für Gleisanlagen gemäß dem Oberbegriff des Anspruches 1.The invention relates to a concrete sleeper system for track systems according to the preamble of claim 1.

Betonquerschwellen sind geeignete Schienenträger für den Eisenbahnoberbau sowohl in Schotterbetten als auch auf festem Beton- oder Asphaltuntergrund. Sie haben einerseits die Aufgabe, Schienen spurgetreu zu fixieren und andererseits dem Schienenstrang durch ihre relativ kurze Auflagerfläche für die Schienen bei der überrollenden Belastung die notwendige Elastizität zu geben. Im Betrieb werden diese Schwellen auf Druck, Biegung, Torsion und Querverschiebung beansprucht. Eine Auflage der Schwellenunterseite in möglichst gesamter Länge gewährleistet eine gute Druckverteilung auf in den Untergrund, insbesondere bei Schotterbetten.Concrete sleepers are suitable rail supports for the railway superstructure both in ballast beds and on solid concrete or asphalt surfaces. On the one hand, they have the task of fixing the rails true to the track and, on the other hand, to give the rail track the necessary elasticity due to its relatively short bearing surface for the rails in the event of a rolling load. During operation, these sleepers are subjected to pressure, bending, torsion and transverse displacement. An overlay of the underside of the sleeper in the fullest possible length ensures a good pressure distribution into the ground, especially with ballast beds.

Betonquerschwellen aus Spannbeton sind bekannt. Diese Schwellen, z.B. gemäß DE-PS 22 61 473, haben Nachteile. Gleisstrom-Signalsysteme können durch Schwellen mit integriertem elektrisch leitendem Material wie Stahlrohre beeinflußt werden. Bei Fahrzeugen mit Gleichstromantrieb erfassen Induktionsströme das leitende Material. Eine Verminderung der Biegebelastung in Gleislängsrichtung und damit verringerter Torsion und der bekannten "Pumpwirkung" in Schotterbetten läßt sich nur durch Verkürzung des Schwellenabstandes erreichen. Dieses bedingt einen hohen Materialaufwand.Concrete sleepers made of prestressed concrete are known. These thresholds, e.g. according to DE-PS 22 61 473, have disadvantages. Track current signal systems can be influenced by sleepers with integrated electrically conductive material such as steel pipes. In vehicles with a DC drive, induction currents capture the conductive material. A reduction in the bending load in the longitudinal direction of the track and thus reduced torsion and the known "pumping effect" in ballast beds can only be achieved by shortening the distance between the sleepers. This requires a lot of material.

Es wurde ebenfalls vorgeschlagen, durch Verwendung sogenannter "Ohrenschwellen" die Zahl der Schwellen zu reduzieren bzw. die Zahl der Schienen-Auflager zu erhöhen (CH-PS 40 591). Die seitlich der Schwellenachse sich.erstreckenden Betonteile dieser Schwelle brachen trotz Bewehrung in der Praxis jedoch häufig Bewehrung aufgrund der Belastung durch die Schienenfahrzeuge.It has also been proposed to reduce the number of sleepers or to increase the number of rail supports by using so-called "ear thresholds" (CH-PS 40 591). The concrete parts of this sleeper extending to the side of the sleeper axis frequently broke reinforcement due to the load from the rail vehicles, despite the reinforcement in practice.

Durch ein anderes bekanntes Beton-Schwellensystem, sogenannte Y-Schwellen gemäß DE-OS 28 02 145, läßt sich, bei gegebenem Nominal-Abstand der Auflagerpunkte der Schienen entsprechend dem Abstand der gebräuchlichen stabförmigen Betonquerschwellen, schon eine erheblich bessere Lastverteilung erreichen. Für diese Betonschwellen wäre ein geringerer Auflager-Abstand wünschenswert und/oder eine höhere Torsionsbruchsicherheit, da in der Gabel der Y-Schwelle, bei Betriebsbelastung in der Symmetrieachse der Schwelle, eine gegensinnige Momentenbelastung auftritt.Another known concrete sleeper system, so-called Y sleepers according to DE-OS 28 02 145, can achieve a considerably better load distribution for a given nominal distance of the support points of the rails according to the distance between the usual rod-shaped concrete sleepers. For these concrete sleepers, a smaller distance between the supports would be desirable and / or a higher resistance to torsional fracture, since an opposing moment load occurs in the fork of the Y-sleeper when the sleeper's axis of symmetry is operating.

Außerdem ist bekannt, Stahlschwellen auf Asphaltbetten (EP-A1-­023307) durch "Nelson-Anker" ( Merkblatt DVS 0902, Dezember 1972) zu fixieren.It is also known to fix steel sleepers on asphalt beds (EP-A1-023307) using "Nelson anchors" (data sheet DVS 0902, December 1972).

Weit verbreitet ist eine Schienenbefestigung (GB-PS 861473), bei der der Schienenfuß zunächst auf einer Metallgrundplatte durch eine Stahlfeder befestigt und die Metallgrundplatte durch weitere Spannmittel an der Schwelle fixiert ist.Rail fastening (GB-PS 861473) is widespread, in which the rail foot is first fixed to a metal base plate by means of a steel spring and the metal base plate is fixed to the threshold by further clamping means.

Von daher ist es Aufgabe der Erfindung, ein neues Betonschwellen­system vorzuschlagen, das es ermöglicht, bei hoher Elastizität der Gleisanlage auf Schotterbetten oder fester Fahrbahn, ein günstigeres Einsinkverhalten in Schotterbetten, verringerte Biegespannung in der Schiene und ein günstigeres Torsions- und Biegeverhalten der Schwelle zu erreichen sowie einen störungsfreien Betrieb von Gleisstrom-Signalsystemen auch bei Befahren der Gleisanlage mit gleichstromgetriebenen Fahrzeugen zu gewährleisten.It is therefore the object of the invention to propose a new concrete sleeper system which makes it possible to achieve a more favorable sinking behavior in ballast beds, reduced bending stress in the rail and a more favorable torsion and bending behavior of the sleeper with high elasticity of the track system on ballast beds or solid carriageway as well as to ensure trouble-free operation of track current signaling systems even when the track system is being driven by DC-powered vehicles.

Die Aufgabe wird erfindungsgemäß durch die im Anspruch 1 angegebenen Merkmale gelöst.The object is achieved by the features specified in claim 1.

Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen erfaßt.Advantageous developments of the invention are covered in the subclaims.

Die Doppellagerung der Schiene auf einer normalen Betonquer­schwelle in Stabform mit der dazwischenliegenden Verspannung des Schienenfußes ergibt eine optimale Dreipunkt-Fixierung der Schiene.The double bearing of the rail on a normal concrete cross sleeper in the form of a rod with the tensioning of the rail base in between results in an optimal three-point fixation of the rail.

Je größer der Abstand der Auflager auf den Schwellenenden, desto günstiger ist bei Belastung der Spannungsverlauf in der Schiene und Schwelle. Im Idealfall müßte zwischen den Auflagern aller Schwellen ein stets gleicher Abstand bestehen; dieses würde jedoch einen zu hohen Aufwand an Schwellen bedeuten. Der vorgeschlagene Zwischenschritt mit einem Auflagerabstand auf den Schwellen von mehr als 20 % des Abstandes zum Auflager der benachbarten Schwellen erbringt schon eine erhebliche Spannungsreduktion in der Schiene. Der Auflagerabstand wird durch die Schwellenbreite und damit zunehmendem Gewicht der Schwelle sowie der Gefahr des Schwellenbruches bei größer werdendem Hebelarm der Last zur Schwellenachse begrenzt.The greater the distance between the supports on the sleeper ends, the more favorable the stress curve in the rail and sleeper when the load is applied. Ideally, there should always be the same distance between the supports of all sleepers; however, this would mean that thresholds would be too expensive. The proposed intermediate step with a support distance on the sleepers of more than 20% of the distance to the support of the neighboring sleepers already brings about a considerable reduction in tension in the rail. The distance between the supports is limited by the threshold width and thus the increasing weight of the threshold and the risk of the threshold breaking when the lever arm of the load increases in relation to the threshold axis.

Dem Massenproblem begegnet eine Betonquerschwelle in Y-Form, bei der ca. 20 % der Betonmasse pro Längeneinheit eingespart wird, bei gleich guter oder besserer Schienenlagerung.The mass problem is met by a Y-shaped concrete tie, which saves approx. 20% of the concrete mass per unit length, with the same or better rail bearing.

Die erfindungsgemäße Betonquerschwelle mit zwei oder mehr Auflagern für die Schiene pro Schwellenende ist insbesondere in stark belasteten Gleisabschnitten wie Stadtbahnstrecken, Hochgeschwindigkeitsstrecken, Schwerlaststrecken sinnvoll einsetzbar.
Trotz der Gesamtelastizität der Gleisanlage muß das Festlager-­ Element Schwelle gegen Torsions- und Biegebruch stabil bleiben. Dies erreicht man erfindungsgemäß zum einen durch die Verteilung der Schwellenbelastung auf drei Punkte je Schwellenende und zum anderen durch Verwendung an sich bekannten Polymerbetons aus kolloidalem Zement und 4 - 10 % Zusatz von Polymeren wie Polyvinylacetat.
Ebenfalls verwendbar wäre eine mit gehäckselten oder lagenweise eingebrachten GFK-Fasern versehene Betonschwelle. Die technologischen Eigenschaften dieser Verbundstoffe sind erheblich besser als die von üblichem Beton oder Spannbeton. Erforderlichenfalls können die aufgrund einer Spannungsanalyse festgestellten besonders beanspruchten Teile der Schwelle aus einer Mischung der Verbundwerkstoffe oder durch Zusatz langfaseriger Kohlefasern oder Glasfasern stabilisiert werden.The concrete cross sleeper according to the invention with two or more supports for the rail per sleeper end can be usefully used in particular in heavily loaded track sections such as light rail lines, high-speed lines and heavy-duty lines.
Despite the overall elasticity of the track system, the fixed bearing Element threshold remain stable against torsion and bending fracture. According to the invention, this is achieved, on the one hand, by distributing the threshold load to three points at each threshold end and, on the other hand, by using known polymer concrete made of colloidal cement and 4-10% addition of polymers such as polyvinyl acetate.
A concrete threshold with chopped or layered GRP fibers could also be used. The technological properties of these composites are considerably better than those of conventional concrete or prestressed concrete. If necessary, the particularly stressed parts of the threshold determined on the basis of a stress analysis can be stabilized from a mixture of the composite materials or by adding long-fiber carbon fibers or glass fibers.

Diese Bewehrungstechnik hat den Vorteil, daß elektrisch leitendes Material vermieden wird, welches durch Induktion oder Leitung (Elektrolyt-Bildung bei Regenwasser zwischen Schiene und Schwelle bzw. Schwellenbewehrung) Störungen in Gleisstrom-Meldeanlagen erzeugen könnnte.
Auch eine Beeinflussung des Magnetfeldes gleichstromgetriebener Fahrzeuge durch das Schwellensystem kann so ausgeschlossen werden.This reinforcement technology has the advantage that electrically conductive material is avoided, which could cause disturbances in track current detection systems by induction or conduction (electrolyte formation in rainwater between rail and threshold or threshold reinforcement).
The threshold system can also be used to prevent the magnetic field of DC-powered vehicles from being influenced.

Zur Erhöhung des Querverschiebewiderstandes, insbesondere in Kurven von Gleisen auf Asphaltbetten, können die neuen Betonquerschwellen durch sogenannte Nelson-Anker mit dem Untergrund verbunden werden; dieses trägt zur Versteifung der Schwelle als Schienenträger bei.To increase the lateral displacement resistance, especially in curves of tracks on asphalt beds, the new concrete cross sleepers can be connected to the ground using so-called Nelson anchors; this contributes to the stiffening of the threshold as a rail support.

Die Bewehrung der Schwelle an den besonders belasteten Punkten durch die Verbindung der für die Zuganker, z.B. Schwellen­ schrauben, in den Beton eingegossenen Dübel mittels Kunststoff­brücke oder Faserseil, kann erfindungsgemäß auf mehrere Arten erfolgen:

    - durch Verbindung der Schraubdübel an einer Schiene zu einer Traverse,
    - durch Verbindung der an den Schienen-Innenseiten liegenden Dübel,
    - durch Verbindung aller Dübel und der Nelson-Anker-­Befestigung.The reinforcement of the threshold at the particularly stressed points by connecting those for the tie rods, eg sleepers screwing, dowels cast into the concrete using a plastic bridge or fiber rope, can be done according to the invention in several ways:

- by connecting the screw anchors on a rail to a crossbar,
- by connecting the dowels on the inside of the rails,
- by connecting all dowels and the Nelson anchor attachment.

In die Bewehrung einbezogen werden könnte noch der Befestigungs­punkt für den Nelson-Anker. Die eingegossenen Dübel können auch bis zur Schwellenunterseite durchragen und unten offen sein, damit eventuell eindringende Elektrolyte, wie Regenwasser etc., abfließen können.The attachment point for the Nelson anchor could also be included in the reinforcement. The cast-in dowels can also extend through to the underside of the threshold and be open at the bottom so that any penetrating electrolytes, such as rainwater etc., can drain off.

Für Schwerlastverkehr kann gemäß der Erfindung auf der Betonschwelle zunächst eine Metallgrundplatte angeordnet werden, die ihrerseits zwei federnde, isolierte Auflagerelemente aus vorzugsweise Polyethylen oder anderen umweltresistenten Kunststoffen trägt. Dadurch wird eine geringere spezifische Belastung der Schwelle erreicht.
Diese Ausführung eines Auflagers ist insbesondere zu verwenden, wenn das Gleisbett aus Asphalt oder Beton besteht. Die Kunststoffplatten müssen dann das elastische Einsinkverhalten eines Schotterbettes simulieren bzw. übernehmen, damit das Gleis trotz der relativ biegesteifen Schienen und Schwellen eine elastische Gesamtcharakteristik aufweist. Dies ist wichtig für eine hohe Lebensdauer und Bruchresistenz der Gleisanlage bei den extrem herrschenden Sommer-/Wintertemperaturen von ca. 230 K bis 350 K.For heavy goods traffic, according to the invention, a metal base plate can first be arranged on the concrete sleeper, which in turn carries two resilient, insulated support elements made of preferably polyethylene or other environmentally resistant plastics. This results in a lower specific load on the threshold.
This type of support should be used in particular if the track bed is made of asphalt or concrete. The plastic plates must then simulate or adopt the elastic sinking behavior of a ballast bed so that the track has an overall elastic characteristic despite the relatively rigid rails and sleepers. This is important for a long service life and break resistance of the track system at the extremely prevailing summer / winter temperatures of approx. 230 K to 350 K.

Im Zusammenhang mit dieser Auflagerform kann die für sich bekannte Stahlfeder-Verspannung des Schienenfußes mit der Metallgrundplatte angewendet werden. Die Metallgrundplatte kann bereits werkseitig vormontiert werden, so daß bei Schienen­verlegung keine Schraubwerkzeuge benötigt werden. Außerdem wird so verhindert, daß die Schienenverspannung mit zu hohen Schraubenmomenten erfolgt.In connection with this form of support, the known steel spring bracing of the rail foot with the metal base plate can be used. The metal base plate can be pre-assembled at the factory so that no screwing tools are required when laying rails. This also prevents the rail from being braced with excessive screw torques.

Besonders einfach lassen sich die erhöhten Auflagerflächen auf dem Schwellenende schaffen, wenn die Schwellen-Betongußform für jedes Auflager so ausgebildet wird, daß an jedem Schwellenende zwei aus der späteren Schwellenoberfläche hervorragende Höcker entstehen. Auf diesen Höckern wird dann eine elastische Schienenunterlage plaziert, erforderlichenfalls bei hoher Belastung unter Einfügung einer metallenen Zwischenplatte.The raised support surfaces on the sleeper end can be created particularly easily if the sleeper concrete casting mold is designed for each support in such a way that at each sleeper end two bumps which emerge from the later sleeper surface are formed. An elastic rail pad is then placed on these humps, if necessary under high load with the insertion of a metal intermediate plate.

Im Rahmen der Erfindung kann die elastische Schienenunterlage auch als durchgehende, je zwei an einem Schwellenende gelegene Höcker überdeckende, Platte oder Formkörper mit seitlichen Führungen für die Lagefixierung auf der Schwelle bzw. dem Höcker ausgebildet sein. Wenn diese Platte elastisch genug ausgebildet ist, ändert sich dadurch nichts an der Drei-Punkt-Verspannung des Schienenfußes auf der Schwelle.In the context of the invention, the elastic rail underlay can also be designed as a continuous plate or molded body, each covering two humps located at a sleeper end, with lateral guides for fixing the position on the sleeper or the hump. If this plate is elastic enough, nothing changes in the three-point bracing of the rail foot on the threshold.

Anhand schematischer Zeichnungen soll die Erfindung näher erläutert werden.The invention will be explained in more detail with the aid of schematic drawings.

Es zeigen

  • Fig. 1 eine Draufsicht auf ein erfindungsgemäßes System mit zwei Betonquerschwellen,
  • Fig. 2 eine Seitenansicht eines Schwellenendes mit Teilschnitt II-II gemäß Fig. 1,
  • Fig. 3 einen Schnitt durch eine erfindungsgemäße Betonquerschwelle.
Show it
  • 1 is a plan view of an inventive system with two concrete sleepers,
  • 2 is a side view of a sleeper end with partial section II-II of FIG. 1,
  • Fig. 3 shows a section through a concrete threshold according to the invention.

Zwei benachbarte stabförmige Schwellenenden 1 von Beton­querschwellen aus Polymerbeton weisen Keilflächen 14 mit Neigung 1 : 40 zur Gleismitte auf (Fig. 1).
Auf den Keilflächen 14 sind Auflager 3, 4, 5, 6 aus federnden, elektrisch isolierenden Kunststoffplatten für den Schienenfuß 13 der Schiene 2 angeordnet. Der Mittenabstand zwischen den Auflagern 4 und 5 beträgt 600 mm, zwischen den Auflagern 3 und 4 bzw. 5 und 6 170 mm.Two adjacent rod-shaped threshold ends 1 of concrete cross sleepers made of polymer concrete have wedge surfaces 14 with an inclination 1:40 to the center of the track (FIG. 1).
Bearings 3, 4, 5, 6 made of resilient, electrically insulating plastic plates for the rail foot 13 of the rail 2 are arranged on the wedge surfaces 14. The center distance between the supports 4 and 5 is 600 mm, between the supports 3 and 4 or 5 and 6 170 mm.

Mittig zwischen den Auflagern 3, 4 bzw. 5, 6 ist der Schienenfuß 13 durch in Nut 16 ruhende Führungsplatten 7 und Spannbügel 8 sowie die in Dübel 17 (Fig. 2) eingelassene Schrauben 9 fixiert.
Ein Schlitz 10 ist für die Aufnahme eines Nelson-Ankers 12 vorgesehen, der mit Mutter 15 über Scheibe 23 gegen die Befestigungsfläche 11 verspannt wird.
Der Nelson-Anker 12 ist vorher an einem im Asphaltbett 22 eingegossenen Bandstahl 21 mittels nicht dargestelltem Bolzenschweißgerät verschweißt worden.The rail foot 13 is fixed in the center between the supports 3, 4 and 5, 6 by guide plates 7 and clamping brackets 8 resting in the groove 16 and the screws 9 inserted in dowels 17 (FIG. 2).
A slot 10 is provided for receiving a Nelson anchor 12, which is braced against the mounting surface 11 with the nut 15 via the washer 23.
The Nelson anchor 12 has previously been welded to a strip steel 21 cast in the asphalt bed 22 by means of a stud welding device, not shown.

Fig. 3 zeigt im Schnitt durch eine Betonquerschwelle zwei unter­schiedliche Bewehrungstechniken und Schraubdübel-Traversen. Im rechten Bildabschnitt ist eine Traverse 18 aus GFK für die beidseitige Schienenbefestigung im Schwellenende 1 eingegossen und sichert so einen kritischen Punkt der Schwelle gegen Ausbrechen. In der linken Teilfigur ist ein Ende 1 einer Betonquerschwelle dargestellt, die eine Bewehrungstraverse 20 umschließt, deren Stege 19 aus Glasfaserlaminaten bestehen, die an die Dübel 17 aus Polyethylen anlaminiert sind, sich längs durch die gesamte Schwelle erstrecken und in Arm 24 mit Bohrung für den nicht dargestellten Nelson-Anker enden.Fig. 3 shows a section through a concrete cross sleeper two different reinforcement techniques and screw dowel trusses. In the right-hand section of the picture, a cross member 18 made of GRP is cast in for the rail fastening on both sides in the sleeper end 1 and thus secures a critical point of the sleeper against breaking out. In the left part of the figure, an end 1 of a concrete threshold is shown, which encloses a reinforcement cross member 20, the webs 19 of which consist of glass fiber laminates laminated to the dowels 17 made of polyethylene, lengthways extend through the entire threshold and end in arm 24 with a hole for the Nelson anchor, not shown.

Claims (10)

1. Betonschwellensystem mit Betonquerschwellen in gegen Torsions- und Biegebruchwiderstandsfähiger Bauweise mit stabförmigen Schwellenenden für Gleisanlagen, insbesondere von Stadtbahn- und Hochgeschwindigkeitseisenbahnstrecken mit wenigstens zwei Schienen sowie Auflagern und Befestigungen für die Schienen, wobei die Schwelle ein Breiten/Höhen­verhältnis von kleiner als 2 : 1 hat, dadurch gekennzeichnet, daß jedes Schwellenende (1) mindestens je zwei Auflager (3, 4 bzw. 6, 5) aufweist, zwischen denen Spannmittel (8, 9) für die Befestigung des Schienenfußes (13) angeordnet sind und die Betonquerschwelle eine Bewehrung aus elektrisch nicht leitendem Material hat.1.Concrete sleeper system with concrete sleepers in a construction resistant to torsion and bending fracture with rod-shaped sleeper ends for track systems, in particular for light rail and high-speed railway lines with at least two rails and supports and fastenings for the rails, the sleeper having a width / height ratio of less than 2: 1 , characterized in that each sleeper end (1) has at least two supports (3, 4 and 6, 5), between which clamping means (8, 9) for fastening the rail foot (13) are arranged and the concrete sleeper a reinforcement has electrically non-conductive material. 2. Betonschwellensystem nach Anspruch 1, dadurch gekennzeichnet, daß der Mittenabstand benachbarter Auflager (3, 4 bzw. 5, 6) größer als 0,2 mal dem Mittenabstand der Auflager (4, 5) benachbarter Schwellenenden (1) ist.2. Concrete sleeper system according to claim 1, characterized in that the center distance between adjacent supports (3, 4 or 5, 6) is greater than 0.2 times the center distance of the supports (4, 5) adjacent threshold ends (1). 3. Betonschwellensystem nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Betonquerschwelle y-förmig mit drei Schwellenenden (1) ausgebildet ist.3. Concrete sleeper system according to claims 1 and 2, characterized in that the concrete cross sleeper is Y-shaped with three sleeper ends (1). 4. Betonschwellensystem nach den Ansprüchen 1 - 3, dadurch gekennzeichnet, daß der Betonquerschwellenkörper aus Polymer- und/oder Faserbeton besteht.4. Concrete sleeper system according to claims 1-3, characterized in that the concrete cross sleeper body consists of polymer and / or fiber concrete. 5. Betonschwellensystem nach den Ansprüchen 1 - 4, gekennzeichnet durch eine Bewehrung der Betonquerschwelle aus Kohlefaser und/oder verseifungsfester Glasfaser.5. Concrete sleeper system according to claims 1-4, characterized by a reinforcement of the concrete cross sleeper made of carbon fiber and / or saponification-resistant glass fiber. 6. Betonschwellensystem nach den Ansprüchen 1 - 5, dadurch gekennzeichnet, daß jedes Schwellenende (1) einen Befestigungspunkt (11) für einen Nelson-Anker (12) aufweist.6. Concrete sleeper system according to claims 1-5, characterized in that each sleeper end (1) has a fastening point (11) for a Nelson anchor (12). 7. Betonschwellensystem nach den Ansprüchen 1 - 6, dadurch gekennzeichnet, daß für mindestens je zwei Spannmittel (8, 9) eine Schraubdübel-Traverse (18, 20) aus Kunststoff in der Betonquerschwelle angeordnet ist.7. Concrete sleeper system according to claims 1-6, characterized in that for at least two clamping means (8, 9) a screw-dowel cross member (18, 20) made of plastic is arranged in the concrete cross sleeper. 8. Betonschwellensystem nach den Ansprüchen 1 - 5, dadurch gekennzeichnet, daß die Auflager (3, 4, 5, 6) eine Metallgrundplatte und eine darauf angeordnete, federnde, elektrisch isolierende Kunststoffplatte aufweisen.8. Concrete sleeper system according to claims 1-5, characterized in that the supports (3, 4, 5, 6) have a metal base plate and a resilient, electrically insulating plastic plate arranged thereon. 9. Betonschwellensystem nach den Ansprüchen 1 - 8, dadurch gekennzeichnet, daß die Spannmittel (8, 9) für den Schienenfuß aus zwei Stahlfedern und einer die Stahlfedern einseitig haltenden Metallgrundplatte sowie mindestens zwei die Metallgrundplatte auf der Schwelle fixierenden Schrauben besteht.9. Concrete sleeper system according to claims 1-8, characterized in that the tensioning means (8, 9) for the rail foot consists of two steel springs and a metal base plate holding the steel springs on one side and at least two screws fixing the metal base plate on the threshold. 10. Betonschwellensystem nach den Ansprüchen 1 - 7, dadurch gekennzeichnet, daß das Auflager (3, 4, 5, 6) als Basis einen aus der Oberfläche des Schwellenendes (1) hervorragenden Höcker aufweist.10. Concrete sleeper system according to claims 1-7, characterized in that the support (3, 4, 5, 6) as a base has a protrusion from the surface of the sleeper end (1).
EP87730062A 1986-06-10 1987-06-06 Concrete sleeper system Expired - Lifetime EP0249574B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87730062T ATE60381T1 (en) 1986-06-10 1987-06-06 CONCRETE SLEEPER SYSTEM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863619417 DE3619417A1 (en) 1986-06-10 1986-06-10 CONCRETE THRESHOLD
DE3619417 1986-06-10

Publications (3)

Publication Number Publication Date
EP0249574A2 true EP0249574A2 (en) 1987-12-16
EP0249574A3 EP0249574A3 (en) 1988-10-19
EP0249574B1 EP0249574B1 (en) 1991-01-23

Family

ID=6302651

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87730062A Expired - Lifetime EP0249574B1 (en) 1986-06-10 1987-06-06 Concrete sleeper system

Country Status (9)

Country Link
US (1) US4802623A (en)
EP (1) EP0249574B1 (en)
JP (1) JPS62296001A (en)
AT (1) ATE60381T1 (en)
AU (1) AU597379B2 (en)
DE (2) DE3619417A1 (en)
ES (1) ES2020297B3 (en)
GR (1) GR3001787T3 (en)
ZA (1) ZA874033B (en)

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DE102009049411A1 (en) * 2009-10-14 2011-04-21 Db Netz Ag Prestressed concrete sleeper and method for transporting and installing a turnout with prestressed concrete sleepers
DE102010035675A1 (en) * 2010-08-27 2012-03-01 Db Netz Ag Foldable switch

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SE9702375L (en) * 1997-06-19 1998-12-20 Bengt Boenstroem Insulating and cushioning tracks for rail-bound traffic
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US8544763B2 (en) * 2010-03-15 2013-10-01 Concrete Systems Inc. Prefabricated plinth for supporting a railway track
DE102010060745A1 (en) * 2010-11-23 2012-05-24 Vossloh-Werke Gmbh Guide plate for laterally guiding a rail and system for fastening a rail
US20120248215A1 (en) * 2011-04-03 2012-10-04 Javad Mirmohamad Sadeghi Railroad tie
RU2504611C2 (en) * 2012-04-09 2014-01-20 Открытое акционерное общество "БетЭлТранс" Reinforced concrete cross tie
DE102012209764B4 (en) * 2012-06-12 2014-01-16 Lisega SE Cold insulated pipe storage
GB2510419B (en) * 2013-02-04 2020-02-05 Pandrol Ltd A railway rail anchoring device
US10422085B2 (en) * 2016-08-26 2019-09-24 Pandrol Limited Tie plate for railroad tracks with spike protectors
DE102016216529A1 (en) * 2016-09-01 2018-03-01 Schwihag Ag Device for fastening a rail for rail vehicles
KR102458085B1 (en) * 2021-05-28 2022-10-24 오병용 Segmented sleepers for railroads and underplates combined with them
BR202022011494U2 (en) * 2022-06-10 2022-11-29 Wirklich Ind De Plasticos Ltda ARRANGEMENT IN GALOCHA FOR CONCRETE SLEEVE

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WO1997005331A1 (en) * 1995-07-28 1997-02-13 Harms & Haffke Gmbh & Co. Twin-block polymer-concrete sleeper and method of producing it
DE102009049411A1 (en) * 2009-10-14 2011-04-21 Db Netz Ag Prestressed concrete sleeper and method for transporting and installing a turnout with prestressed concrete sleepers
DE102010035675A1 (en) * 2010-08-27 2012-03-01 Db Netz Ag Foldable switch

Also Published As

Publication number Publication date
EP0249574B1 (en) 1991-01-23
ES2020297B3 (en) 1991-08-01
DE3767576D1 (en) 1991-02-28
DE3619417A1 (en) 1987-12-17
US4802623A (en) 1989-02-07
GR3001787T3 (en) 1992-11-23
ZA874033B (en) 1987-12-04
AU7401987A (en) 1987-12-17
EP0249574A3 (en) 1988-10-19
ATE60381T1 (en) 1991-02-15
AU597379B2 (en) 1990-05-31
JPS62296001A (en) 1987-12-23

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