EP2644774A2 - Système de fixation de rails avec bagues d'appui bétonnées et ancrages en béton - Google Patents

Système de fixation de rails avec bagues d'appui bétonnées et ancrages en béton Download PDF

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Publication number
EP2644774A2
EP2644774A2 EP13161162.6A EP13161162A EP2644774A2 EP 2644774 A2 EP2644774 A2 EP 2644774A2 EP 13161162 A EP13161162 A EP 13161162A EP 2644774 A2 EP2644774 A2 EP 2644774A2
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EP
European Patent Office
Prior art keywords
concrete
rail
fastening system
sleeper
threshold
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Withdrawn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
EP13161162.6A
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German (de)
English (en)
Other versions
EP2644774A3 (fr
Inventor
Bernd Waldow
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2644774A2 publication Critical patent/EP2644774A2/fr
Publication of EP2644774A3 publication Critical patent/EP2644774A3/fr
Withdrawn legal-status Critical Current

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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
    • E01B9/28—Fastening on wooden or concrete sleepers or on masonry with clamp members
    • E01B9/30—Fastening on wooden or concrete sleepers or on masonry with clamp members by resilient steel clips
    • 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
    • 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
    • E01B9/10—Screws or bolts for sleepers

Definitions

  • the invention relates to a rail fastening system, with which rails can be mounted on a concrete sleeper, wherein support rings and concrete anchors are concreted for the attachment of clamps in the concrete sleeper.
  • Proper bracing between rail and sleeper is the guarantor for maintaining road safety on tracks and switches when carrying passengers and freight on railway lines.
  • the non-positive tension of the rail to the sleeper bearing is to ensure.
  • Loose rail fastenings and damaged concrete sleepers ensure no frictional tension between rail and sleeper and impair road safety in the implementation and maintenance of a smooth railway operation.
  • angle guide plates For fastening the rail, in each case a so-called “angled guide plate” is placed on the areas of the support section not occupied by the rail foot.
  • angle guide plates have a central portion on the underside of a support surface is formed with the angle guide plates sit on the support section.
  • a support section is additionally formed on the central section, which extends downwards from the support surface on the underside of the angled guide plate and whose shape is adapted to the shape of the depression of the threshold limiting the support section.
  • each of the angle guide plates sits with its support portion in a form-fitting manner in the recess associated therewith.
  • the angled guide plates rest laterally against the foot of the rail to be fastened. Side forces transmitted from the rail to the angled guide plate can thus be absorbed by the angled guide plate and directed into the threshold.
  • the support of the angled guide plates takes place via the side facing away from the rail side surface of the respective depression.
  • spring elements are used in the known rail fastening systems, which exert a resilient elastic hold-down force on the rail in the assembled state.
  • the spring elements used in the rail fastening system W14 and comparable systems, also referred to as “tension clamps”, are W-shaped and braced with their middle section on the angled guide plate.
  • tension clamps are W-shaped and braced with their middle section on the angled guide plate.
  • a passage opening is formed in the angled guide plate, through which the clamping screw used for clamping the respective tensioning clamp can be screwed into the recessed respectively in the threshold dowels.
  • a disadvantage of the rail fastening system used for more than 2 decades with the associated sleeper screws and screw plugs is that there were often longitudinal cracks in the concrete sleepers, which led to the expiration of the system. A frictional tension between rail and concrete sleeper was no longer guaranteed. As a result, a safe use of the rail could no longer be guaranteed and the service life of the concrete sleepers of 25 to 30 years was hardly achieved.
  • the reason for the damage to the concrete sleepers is the formation of longitudinal cracks along the threshold body through the existing cavities of the threshold dowels.
  • pressure forces are generated which act from the inside to the outside of the concrete sleepers. It is equally disadvantageous to insert the threshold dowel as a classic dowel in the concrete sleepers or whether they are cast in this. (eg WO 2006/029803 A1 . DE 101 48 726 A1 . DE 31 11 876 A1 ).
  • the vibrations occurring during train movements are transmitted through the axle loads of the rolling wheel via the sleeper screw and threshold dowels into the concrete sleeper.
  • These components are responsible for the formation of cracks in the concrete sleeper and significantly reduce the length of stay depending on the traffic load.
  • the weather conditions penetration of water and frost into the sill dowel and into the existing cracks in the concrete sleepers
  • the threshold bodies are thereby additionally damaged and this accelerates the destruction of the concrete sleeper.
  • a threshold replacement of damaged concrete sleepers is required after 5 to 15 years, depending on the type of damage for the maintenance of railway operations.
  • the fastening systems disclosed in the prior art use dowels which are inserted into an opening in the solid underground, wherein the clamping element is screwed into the dowel.
  • the teaching according to the invention is a combination of several elements (a, b, c and d, wherein the support rings and the concrete anchors are embedded in the concrete threshold).
  • the individual technical elements that are combined with each other surprisingly result in their combination in a significantly improved rail fastening system for rails on concrete sleepers. It was not obvious to a person skilled in the art that the combination of per se known elements leads to a rail fastening system which improves the static load capacity of the sleeper body and doubles the service life of the concrete sleepers while reducing the maintenance costs.
  • a concrete anchor with M10 will be used, as exemplified in US Pat FIG. 4 will be shown.
  • the concrete anchor with M10 is used to fix by fixing the support ring, preferably with an M22 thread, preferably a WD bolt M22, wherein support ring and concrete anchors are both embedded in the concrete sleeper.
  • the combination of concrete anchor (M10), the support ring with the M22 thread and the WD bolt M22 leads to the particular advantageous properties of the preferred embodiment of the invention.
  • a threshold or railway sleepers is part of the railway superstructure, which carries the rails and transfers their loads to the track substructure and distributed. It is the task of the threshold to fix the rail mounted on it in their position and thus to ensure compliance with the gauge.
  • the sleepers can be made of different materials, such as steel, wood or concrete. Concrete sleepers are in particular cast by machine from concrete, wherein on the surface already the support of the rails are formed with lateral cams against displacement and boreholes for the rail holder. Advantages of prestressed concrete sleepers over wooden and steel sleepers are better positional stability due to greater weight and longer service life. In the standard superstructure of Deutsche Bahn, prestressed concrete sleepers type B 70 will also be used for other concrete sleepers such as concrete sleepers. B. type B 90 and others.
  • the system can be used with all common concrete sleepers (such as point sleepers, single block sleepers, etc.).
  • the use of the two-block threshold is widespread.
  • This consists of two concrete blocks, with a Spurhalter are interconnected from an L-shaped or T-shaped steel profile. Resolving the threshold into two blocks increases the side shift resistance.
  • the bi-block sleeper is used in Germany for fastening the rail at the slab track in application.
  • the fastening system is compatible with the single-block sleepers, but also with the bi-block sleepers, so that it can be used universally.
  • Concreteing in the support rings with the concrete anchors offers another surprising advantage.
  • the predetermined position of the support rings in the threshold allows for an accurate and unambiguous orientation of the angled guide plates. Due to the exact positioning, the assembly is facilitated and the assembly time is shortened. It was completely surprising that the concreting of the support ring leads to a further improvement in stability. It was particularly surprising that the stability of the system can be further improved if the support ring is positioned during setting in concrete so that it is flush with the upper edge of the concrete sleeper. The improved stability properties are surprisingly further improved when the support ring is flush with the top edge of the concrete sleeper. To achieve the required electrical conductivity values it can be provided that the concrete anchor and the support ring are provided with a suitable insulating coating. In the attached figures ( FIG.
  • the support rings according to the invention conclude with the upper edge of the concrete sleeper. It is envisaged that the upper edge of the support ring, when placed in the concrete sleeper, preferably terminates with the upper edge of the concrete sleeper. It is preferred that the bolt, preferably a WD bolt M 22, is screwed in the support ring for better alignment before concreting.
  • the concreting of support ring and concrete anchor in the concrete sleeper leads to an improvement of the static load capacity of the sleeper body and also advantageously the spring force of the tension and the vibrations by the rolling wheel (axle loads) are absorbed by the bolt, so that not only the threshold bodies are prosecuted.
  • the support rings preferably have an M 22 thread, which leads to a particularly stable anchoring. The support rings are attached to the concrete anchors by means of said threads.
  • the rail fastening system according to the invention can be used flexibly and is compatible with the known concrete sleepers. In addition, it can be easily pre-assembled, so that a transport of small iron is easily possible.
  • the angle guide plate and the elastic intermediate layer is preferably placed on the concrete sleepers after setting the concrete sleepers. Subsequently, the tension clamp is preferably braced with washer and nut, so that a simple transport is possible and no technological change of the threshold transport is required.
  • the support ring, as well as the concrete anchors are embedded in the concrete threshold, and it may also be advantageous to screw the bolt for the transport of the sleeper body in the support ring. It was completely surprising that arising clamping forces are absorbed by the bolt and not registered in the threshold body. As a result, static properties are achieved, resulting in an increased durability of the concrete sleeper, which is far above that of the prior art. This not only minimizes costs but also reduces maintenance.
  • an elastic intermediate layer is arranged under the rail, which ensures a required elastic compliance in a conventional manner.
  • the "elastic” describes in the context of the invention, in particular the property of a material to deform under load and to accept the discharge of the substantially original shape again. By the intermediate layer damage to the concrete threshold can be prevented by a direct action of the rail.
  • the bolts are threaded bolts.
  • a bolt is a connecting means, which presses in particular the tension clamp on the rail or the angle guide plate.
  • the bolts may have an external thread, so that they can be screwed into the support ring. This may be, for example, a metric ISO thread with an outer diameter (nominal diameter) of 22 mm (in the context of the invention also referred to as M 22 thread). However, other threads can be used which provide sufficient holding power.
  • the bolts in particular the threaded bolts are screwed into the support rings, which are embedded in the concrete sleepers. That is, the support rings are irreversibly connected to the thresholds and are preferably already embedded in the production of the thresholds in this.
  • the support rings preferably have an internal thread, in particular a metric ISO thread M 22.
  • a metric ISO thread M 22 For the system components can be used that are already used in rail construction, such. Eg nut (eg SW 29 with M 22 thread), washer, tension clamp (eg SKL 12 or 14), angle guide plate and elastic rail interlayer. These components are already approved for use by Deutsche Bahn.
  • the use of bolts with a wrench size 24 and a metric ISO thread 22 and support rings with a metric ISO thread 22 and concrete anchors preferred.
  • the disclosed technical terms such as thread M 22 or concrete anchor
  • the disclosed technical terms such as thread M 22 or concrete anchor
  • the support ring preferably with an M 22 thread and concrete anchors are cast in place of the previously used threshold dowel in concrete sleeper production according to the specified dimensions.
  • the upper edge of the support rings terminates with the upper edge of the concrete sleeper. It is preferred that the bolt be screwed during concreting of the concrete sleeper in the support ring for better alignment.
  • the support ring is cast in concrete with a concrete anchor in the concrete sleeper. It is advantageous to embed at least two concrete anchors in the concrete sleeper, wherein the concrete anchors are preferably arranged at a 45 ° angle transverse to the threshold axis.
  • the support ring is connected to the support ring anchoring (in the context of the invention also referred to as a concrete anchor), which in turn is also cast in the concrete of the threshold, preferably connected by a thread or pin.
  • a bolt is pressable by means of a nut and washer to a foot of the rail.
  • the bolt preferably has an external thread and can be screwed into the support ring.
  • a nut eg SW39 type with an M 22 thread
  • a metal washer is screwed onto the bolt with a metal washer.
  • the guide plate is preferably composed of two arranged in the rail longitudinal direction plate parts, wherein the two plate parts can be displaced relative to each other, so that contact surfaces of the two plate members are arranged lying at an angle to the rail longitudinal direction.
  • the tension clamp is preferably with is connected to both plate parts and is pressed together by this on the threshold.
  • Fig. 1 shows a preferred rail fastening system.
  • the rail fastening system comprises an angle guide plate 4, Support rings 6, concrete anchors 8, bolts 5 and clamps 3. It comes in each case an angle guide plate 4 each side of the foot of the rail 9 to lie on the threshold 10.
  • the respective guide plate 4 is formed in an angle perpendicular to the rail over a partial area, wherein the angle forms a direction away from the rail 9 inclined surface, which comes to a corresponding inclined surface of the threshold 10 to the plant.
  • the rail 9 and an associated guide plate 4 are pressed via a particular highly elastic clamp 3 on the threshold 10, under the action of a through opening of the guide plate 4 passing through bolt 5, which is anchored in the threshold 10, in particular a support ring 6.
  • a nut 1 can be screwed with a washer 2, so that the tension clamp 3 presses the rail 9 on the threshold 10.
  • the terminal 3 can, for. B. have a W-shape or other shape.
  • the clamp 3 surrounds in its installed position with its arcuate central portion of the shaft of the bolt 5. This allows the relayed by the rail 9 on the guide plates 4 horizontal forces are removed to the threshold 10 and thus in the threshold itself.
  • the support rings 6 and the concrete anchors 8 connected to the support rings are embedded in the concrete sleeper 10.
  • Fig. 2 shows a side view of a bolt.
  • the bolt 5 preferably has a metric ISO thread 11, with which it can be screwed into the support ring.
  • a nut 1 can be used.
  • Fig. 3A , B show a plan view and side view of a support ring.
  • the support ring 6 is preferably anchored with at least two concrete anchors in a concrete sleeper and is embedded in this before.
  • the support ring 6 preferably has two receptacles for concrete anchors 12, which are configured in particular with an internal thread.
  • the bolt is preferably screwed into the receptacle for the bolt 13.
  • Fig. 4 represents a side view of a concrete anchor.
  • FIG. 5A B are a plan view and a side view of a washer are shown.
  • the washer 2 is preferably placed on the bolt.
  • the Fig. 6A , B show a plan view and side view of a nut.
  • the bolt is fixed in particular with a nut 1.
  • a fastening system according to the figures leads to very particularly advantageous properties.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
EP13161162.6A 2012-03-26 2013-03-26 Système de fixation de rails avec bagues d'appui bétonnées et ancrages en béton Withdrawn EP2644774A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012102554 2012-03-26

Publications (2)

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EP2644774A2 true EP2644774A2 (fr) 2013-10-02
EP2644774A3 EP2644774A3 (fr) 2015-09-02

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EP13161162.6A Withdrawn EP2644774A3 (fr) 2012-03-26 2013-03-26 Système de fixation de rails avec bagues d'appui bétonnées et ancrages en béton

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112553980A (zh) * 2020-12-15 2021-03-26 中铁宝桥集团有限公司 重载铁路有螺栓扣件***

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3111876A1 (de) 1980-04-03 1982-06-09 Ernst Schmitthelm, Federn- Und Metallwarenfabrik Gmbh & Co Kg, 6900 Heidelberg Federnde schienenbefestigung auf betonschwellen
DE19929283A1 (de) 1999-06-25 2000-12-28 Gudehus Gerd Sanierung von Gleisbettwellen durch Injektion
JP2002242103A (ja) 2001-02-14 2002-08-28 Railway Technical Res Inst まくらぎ下の隙間充填工法
DE10148726A1 (de) 2001-10-02 2003-04-17 Krupp Gft Ges Fuer Technik Mbh Befestigungseinrichtung für Fahrschienen
WO2006029803A1 (fr) 2004-09-14 2006-03-23 Bwg Gmbh & Co Kg Dispositif pour guider un rail sur une traverse en beton

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE198504C (fr) * 1907-02-27
DE1132573B (de) * 1961-05-27 1962-07-05 Meier Hermann Dr Ing Schienenbefestigung auf Betonschwellen mit eingeklebten Befestigungsteilen
FR2542022B1 (fr) * 1983-03-02 1985-06-28 Sonneville Roger Boulon d'ancrage pour la fixation d'un rail sur une traverse

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3111876A1 (de) 1980-04-03 1982-06-09 Ernst Schmitthelm, Federn- Und Metallwarenfabrik Gmbh & Co Kg, 6900 Heidelberg Federnde schienenbefestigung auf betonschwellen
DE19929283A1 (de) 1999-06-25 2000-12-28 Gudehus Gerd Sanierung von Gleisbettwellen durch Injektion
JP2002242103A (ja) 2001-02-14 2002-08-28 Railway Technical Res Inst まくらぎ下の隙間充填工法
DE10148726A1 (de) 2001-10-02 2003-04-17 Krupp Gft Ges Fuer Technik Mbh Befestigungseinrichtung für Fahrschienen
WO2006029803A1 (fr) 2004-09-14 2006-03-23 Bwg Gmbh & Co Kg Dispositif pour guider un rail sur une traverse en beton

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112553980A (zh) * 2020-12-15 2021-03-26 中铁宝桥集团有限公司 重载铁路有螺栓扣件***

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