EP3556938B1 - Rail to be mounted elastically - Google Patents

Rail to be mounted elastically Download PDF

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Publication number
EP3556938B1
EP3556938B1 EP19168409.1A EP19168409A EP3556938B1 EP 3556938 B1 EP3556938 B1 EP 3556938B1 EP 19168409 A EP19168409 A EP 19168409A EP 3556938 B1 EP3556938 B1 EP 3556938B1
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EP
European Patent Office
Prior art keywords
rail
joint
filling element
surround
rail head
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Active
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EP19168409.1A
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German (de)
French (fr)
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EP3556938A1 (en
Inventor
Gerd GRÜTZE
Thorsten Utermöhlen
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EDILON SEDRA GmbH
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Edilon Sedra GmbH
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Publication date
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Priority to PL19168409T priority Critical patent/PL3556938T3/en
Publication of EP3556938A1 publication Critical patent/EP3556938A1/en
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Publication of EP3556938B1 publication Critical patent/EP3556938B1/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
    • E01B21/00—Track superstructure adapted for tramways in paved streets
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C9/00—Special pavings; Pavings for special parts of roads or airfields
    • E01C9/06—Pavings adjacent tramways rails ; Pavings comprising railway tracks

Definitions

  • the invention relates to a rail to be elastically supported, which has a rail head with a running surface for the vehicle wheels, a rail foot and a rail web connecting these, in particular a grooved rail which is intended to be replaced by a possibly multilayered surrounding that forms an embedding of the rail.
  • Substructure the surface of which is in the height range of the running surface, to be surrounded at least on one side, with a joint between the embedding and the side surface of the rail head which is to be filled with a joint filling element.
  • the invention also relates to a method for the elastic laying of a rail in a track bed.
  • the rail treads for the vehicle wheels are almost flush with the road surface.
  • the rails are elastically mounted to reduce vibrations and to provide soundproofing for both the vehicle and the environment. Therefore, in addition to thermal movements, the rail head is deflected not only in the vertical but also in the horizontal direction when the vehicle travels over it.
  • the EP 2 960 370 A1 shows a "shoe" for a Vignol rail in the form of a plastic cover with air chambers that envelops the rail except for the running surfaces.
  • An elastic intermediate layer is inserted into the sleeve under the rail foot.
  • a connection to a road body or the like. is not scheduled.
  • the casing completely surrounding the rail is also provided for the important electrical insulation of the rail from the ground.
  • the EP 2 019 168 B1 describes a similar cover for a grooved rail.
  • the shell ends in front of the upper part of the rail head sides.
  • the area of the casing adjoining this, resting on the lower part of the rail head of the grooved rail, is connected to the rail by an adhesive strip.
  • the EP 1 206 599 B1 describes profiles to be attached to the side of a grooved rail, which protrude on the rail head sides up to close to the running surface. This is intended to shield the rail from the road structure that comes close to the rail.
  • DE 10 2016 114 172 A1 shows profiles to be attached to the side of a grooved rail, which leave the sides of the rail head blank for the most part.
  • An insulating layer sprayed onto the rail extends right up to the running surface.
  • the joint to the body is filled with a joint filler as described above.
  • the EP 1 331 310 A2 shows a grooved rail, during the assembly of which elastic plates are first glued to the underside of the rail feet. Left and right bearing parts are glued to the rail web, with an elastic layer protruding above and below the support parts.
  • the construction pit is poured up to the specified height with concrete 11, which laterally adjoins the elastic layers and penetrates into the part of a mounting grid protruding over the side walls of the elastic layers, so that when the concrete hardens an anchoring of the bearing parts and thus the Rail is done in concrete.
  • An asphalt layer forming the road surface is applied to this concrete layer, a joint to the rail head or to the elastic intermediate layer resting against it remains. This joint is then grouted with a bituminous grouting compound.
  • Rails with joint fillers are also in EP 1 956 143 A1 , EP 1 219 749 A2 , WO 2018/010740 A1 , FR 2911154 A and DE 10 2014 114 172 A1 disclosed.
  • One object of the invention is to create a permanent joint that is suitable for elastic rail mounting between the rail head and the adjacent remodeling with little installation effort at the construction site.
  • a prefabricated joint filling element which consists of an elastic material, with an inside facing the rail head and an inside facing away from it Outside, an upper side and a lower side is formed, wherein the inner side is permanently adhered to the side surface of the rail head before the laying of the rail, an outer side opposite the inner side is designed to promote adhesion and an underside facing a rail foot is designed to prevent adhesion.
  • the rail can therefore be provided beforehand, for example in a workshop and before being transported to the installation site, with a joint filling element on both sides of the rail head, which is firmly attached and is prepared on the outward-facing sides, after the elastic Attachment of the rail to the ground with a conversion material, i.e. concrete or asphalt, to be brought into engagement with adhesion.
  • a conversion material i.e. concrete or asphalt
  • an adhesive can be applied.
  • the rail head sides unlike on the construction site, by cleaning, primers or the like. can be prepared for a particularly good hold.
  • the material of the joint filling element preferably a slab-terminated polymer, itself as an adhesive on the rail head side.
  • the silane-terminated polymers have a very high elasticity and recovery, but take longer to harden because they are moisture-hardening, which would be a problem on the construction site.
  • a form-fitting connection between the joint filling element and the conversion for example an undercut, can be provided.
  • This can be, for example, a fleece, the fibers of which protrude beyond the outside and, according to the invention, also the inside of the joint filling element and is introduced during the production of the joint filling element in such a way that it is embedded in the material of the joint filling element and the adhesive on the inside and / or on the outside the concrete slurry or the asphalt, so that a form-fitting, integrated connection is created that provides tensile elements as anchoring.
  • adhesion-promoting elements or arrangements are understood to be understood here, which fix the positioning of adjacent elements or their surfaces to one another indirectly and / or directly, in particular by positively locking, non-positively or materially locking.
  • anchoring measures are also useful, for example embedding fibers or a fabric, for example one or more fabric strips that protrude beyond the outside of the joint filling element. All of this creates a connection that is not only pressure-resistant, but also tensile-resistant, which takes into account the fact that the rail is laid out not only vertically but also horizontally during operation, whereby the joint filling element is supposed to absorb these movements as compression and expansion without it loosens from the rail head sides and / or the conversion (concrete or asphalt) and forms gaps into which water and dirt can penetrate, which can lead to the joint becoming completely detached.
  • the joint filling element should not enter into any adhesive connection on its underside, mostly to a rail chamber filling element or the surrounding or substructure.
  • a release agent can be used, either in the form of an applied or split release agent layer or by sprinkling on dry sand.
  • the joint filling element can be provided with a pretensioning device which can be triggered after the conversion has been applied and which applies compressive stress between the conversion and the side of the rail head. This would prevent significant tensile stresses from acting on the connection points of the joint filling element during lateral movements if the prestressing is dimensioned such that the compressive prestressing predominates even with maximum deflection.
  • devices can be introduced into the joint filling element during manufacture, for example buckling elements that are deflected transversely to the prestressing direction, i.e. in the vertical direction, i.e. in the direction of extension between the outside and inside of the joint filling element and, by acting on the joint filling element, for example by a blow or pressure on its upper side
  • buckling elements that are deflected transversely to the prestressing direction, i.e. in the vertical direction, i.e. in the direction of extension between the outside and inside of the joint filling element and, by acting on the joint filling element, for example by a blow or pressure on its upper side
  • buckling elements that are deflected transversely to the prestressing direction, i.e. in the vertical direction, i.e. in the direction of extension between the outside and inside of the joint filling element and, by acting on the joint filling element, for example by a blow or pressure on its upper side
  • a snap element assume an elongated and
  • a pre-tensioned U-shaped leaf spring is also possible, which is provided in a chamber, for example in a channel of the joint filling element and is held in its pre-tensioned position by a trigger which, in turn, acts on the upper side of the elastic joint filling element, the legs of the leaf spring releases.
  • Another useful option is to create a chamber in the joint filling element, which is placed under negative pressure itself or, for example, by an inserted hose, whereby after the installation of the rail a tiny connection with the atmosphere is sufficient to create the hose and thus the chamber to expand and thus to pretension the joint filling element.
  • joint filling element under compressive stress between its inner and outer sides after its production and to block it with an outer tensioning element, for example with an adhesive strip, which is removed after the rail has been laid.
  • an outer tensioning element for example with an adhesive strip
  • an internal tensioning element for example a kind of sewing, whereby the sewing threads can be destroyed by the action of heat.
  • the invention creates a method for the elastic laying of a rail, in particular a rail according to the invention in a track bed, which has a rail head with a running surface for the vehicle wheels, a rail foot and a rail web connecting these, in which in a first step before the laying, for example in a Workshop or a manufacturing company, a prefabricated joint filling element is permanently attached to the sides of the rail head.
  • the rail prepared in this way is elastically mounted on a substructure and the rail and, in particular, the joint filling element are enclosed in a tensile-resistant manner with a remodeling, that is, concrete or asphalt is poured around it.
  • the material of the conversion can preferably enclose elements protruding beyond the outside of the joint filling element and embed them in the manner of tie rods in an adhesive manner.
  • the invention thus creates a possibility of laying the rails in a short time and with little construction site effort, the rail with the conversion, in particular a conversion that is essentially the same as the rail, such as installation in a street, tightly and without the risk of a gap forming with penetration of Moisture and dirt is and remains connected even with use-related movements of the rail. It is also ensured that the rail remains electrically isolated from the conversion in this area, which is what it is.
  • the rail can also be electrically insulated, as in the DE 10 2016 114 172 A1 the applicant is shown.
  • the joint filling element In addition to the lateral, that is to say horizontal, movements of the rail during operation, the joint filling element also absorbs the vertical rail movements.
  • the joint filling element and its adhesion are also ideally suited to elastically absorb shear movements and shear forces.
  • the invention thus creates a rail and an elastic rail installation in which a prefabricated flexible joint filling element is provided during the preparation of the rail for the gap-free, tight closing of the joint that is created on both sides of the rail.
  • Adhesion-promoting elements and measures are provided to create a pressure-resistant and tensile-resistant connection between the rail and the conversion, e.g. made of concrete or asphalt, which is only attached after the rail has been installed.
  • a releasable expansion memory can be provided in the joint filling element, which creates and maintains a compressive prestress in the joint filling element between the conversion and the rail after the rail has been installed.
  • the in Fig. 1 The section shown represents a rail vehicle (not shown), for example a tram, provided elastically in a track bed 11 grooved rail 12 Track channel side 16.
  • the rail head 13 is connected to the rail foot 18 by a rail web 17. This is mounted on an elastic foot profile 19. This in turn rests on a base plate 25 which compensates for unevenness in the track bed foundation 26.
  • a correspondingly shaped chamber filling element 21 is inserted that is supported on the rail foot on the one hand and on the undersides 22 of the rail head 13 on the other.
  • the chamber filling elements end slightly below the rail head sides 23 in an essentially horizontal surface 24.
  • a joint 50 is formed on both sides of the rail between the rail head sides 23 and a conversion 31 formed by in-situ concrete and / or the application of an asphalt layer after the rail 11 has been installed.
  • joint filling elements 27 are adhered to the rail head sides 23 on both sides before the rail 11 is installed.
  • These are prefabricated from a flexible plastic, in particular silane-terminated polymer in the form of a strip, for example as a continuously cast profile.
  • Polyurethanes and polysulfites are also suitable. They have an upper side 33 which is essentially in one plane with the running surface 14 and the conversion (road) surface 30 of the conversion 31 or slightly below it, an underside 34 adjoining a chamber filling element 21 in the example shown, an inside adjoining the rail head side 35 and an outer side 36 which adjoins the enclosure 31.
  • Fig. 2 and 3 it is shown that the connection to the rail head sides is made by an adhesive layer 28, to be precise already during the preparation of the rail in a workshop set up on it or a corresponding facility near the laying point. This ensures that the bonding takes place under the best conditions in terms of positioning, cleanliness, temperature control and preparation of the bonding surface on the rail 12 and joint filling element 27.
  • the indicated adhesive layer 28 can be an adhesive that adheres well to the rail and to the material of the joint filling element 20, advantageously also made of the same material as the joint filling element itself.
  • These examples also show a structuring of the outer sides 36 of the joint filling element 27 in such a way that a form fit (undercut) arises at least in the vertical direction by at Fig. 2 the outside 36 extends obliquely widening downwards and Fig. 3 the outside 36 has an inward curvature 37.
  • the conversion 31 is created by pouring concrete or (see Figures 2 to 4) with an asphalt layer 39 applied to the concrete conversion sub-layer 38, which together form the conversion 31 , is made, a positively secured arrangement in the vertical direction (upwards).
  • an adhesive layer 28 is also shown on the outside 36 of the joint filling element 27. Since work on the construction site, such as the application of adhesives etc., should be avoided as far as possible, an adhesive is only useful there, for example, if an adhesive layer 28 previously applied to the joint filling element can be activated by applying the conversion, e.g. if a Rebuilding 31 with an asphalt layer 39, when the liquid is applied, sufficient heat is available to activate an adhesive layer 28 consisting of hot-melt adhesive.
  • the joint filling element was already provided with a fleece 41 on its inside and on the outside during manufacture, part of which, for example half of its thickness, is embedded in the material of the joint filling element 27.
  • a fleece 41 on its inside and on the outside during manufacture, part of which, for example half of its thickness, is embedded in the material of the joint filling element 27.
  • It is a high-density fleece made of plastic and compressed from several layers.
  • a nonwoven is to be understood here as any material that is made up of fibers or threads in a regular or irregular, for example tangled, layer and leaves cavities lying undercuts free. It should have a certain thickness so that the materials between which it is supposed to provide adhesion can penetrate.
  • the fleece 41 is filled approximately halfway with the material of the joint filling element 27 on its side facing the joint filling element 27.
  • the fleece With a pressing process, the fleece can be shaped so that it can also be used as the formwork for the in Fig. 1
  • the bevel 43 shown on the concrete structure 31 can form.
  • the fleece 41 improves the adhesion to the sides of the rail head, in particular as far as the tensile strength of the adhesive connection is concerned. Due to the set absorbency of the fleece 41, it can absorb the silane-terminated polymer both during the production of the prefabricated joint filling element 27 and the concrete, ie the easily flowable portion of slurry or mortar contained therein, during the casting for the production of the conversion 31.
  • the previously described adhesive layer 28 penetrates into the inner sides 35 of the joint filling elements protruding fibers, loops, loops or the like. of the fleece 41 and improves the adhesion even with a relatively smooth surface of the rail head sides. These can also have been treated with an adhesion promoter (primer) in preparation for the bond.
  • the outer sides 36 of the joint filling elements 27 form the outer boundaries of the rail complex in the area close to the surface.
  • the conversion is now carried out by grouting with the material provided, i.e. with in-situ concrete ( Fig. 1 ) or an asphalt layer 39 on a concrete conversion sub-layer ( Fig. 4 ).
  • the initially flowable constituents of these materials i.e. concrete slurry and the largely liquid portion of the asphalt, which is usually reinforced with mineral materials, penetrate the elements protruding from the outside 36 and not embedded in the joint filling element 27, i.e. fibers, loops, loops or the like .
  • a separating means 46 is provided between the horizontal surface 24 of the chamber filling element 21 (or other elements provided at this point) and the underside of the joint filling element 27. As the simplest implementation, this can also be sprinkled quartz sand. Oil paper or a geotextile fleece or a sprayed release agent can also be used.
  • Fig. 4 shows that instead of the fleece on the outside 36 one or more fabrics 45, for example in the form of strips running along the rail, are embedded in the joint filling element, which are also embedded in the asphalt layer 39 belonging to the conversion 31 when the conversion is made. These can also be single fibers.
  • a fleece 41 is provided as an adhesion promoter on the inside 35 of the joint filling element 27, as described.
  • Fig. 5 shows a combination of the execution Fig. 2 with an embedded strip of fabric or fibers in the case of a concrete conversion 31.
  • Fig. 6 shows an embodiment in which in addition to the fleece 41 also on the outside of the joint filling element 27, an element reinforcing the tensile strength, a fabric strip or fibers 45, are embedded in the lower part of the joint filling element 27, where the fleece 41 ends.
  • the joint filling element 27 can particularly preferably be provided with a pretensioning device 51 that can be triggered after the conversion has been applied, so to speak an expansion storage device, which acts mainly in the horizontal direction. Examples are in the Figures 7 to 16 shown schematically.
  • Figures 7 and 8 show schematically indicated an embodiment of the pretensioning device 51 in which one or more buckling elements 53 are provided in or on the joint filling element 27, for example as a layer of plastic platelets that are roof-shaped.
  • the buckling elements 53 are pressed flat and also maintain this position.
  • the material of the joint filling element is stretched somewhat in the middle area and forms a compressive prestress in the edge areas.
  • Fig. 8 shows that the upper side 33 of the joint filling element 27 can thereby be somewhat concave, but this can be compensated for if this surface is made somewhat convex upwardly bulged.
  • Figures 9 and 10 show an embodiment of the pretensioning device 51, in which a chamber 54 is provided in the joint filling element 27, which extends along the rail 11 and in which pretensioning devices 51 are arranged in U-shaped bent leaf springs 55 at a longitudinal distance from one another, which are tensioned by a tensioner or trigger 56 State ( Fig. 9 ) by engaging behind the bends 57 at the ends of the spring legs 58.
  • the inverted T-shaped trigger will after installation by a pressure or blow on the top side 33 of the joint filling element 27 pressed down and releases the spring legs 58 so that they stretch the middle area of the joint filling element 27 and build up a total pressure bias in this, especially in the upper area.
  • Figures 11 and 12 demonstrate an embodiment of the pretensioning device 51, in which components 47, 48 are provided in a chamber 54 provided centrally in the joint filling element 27 by a destructible wall 59.
  • the chamber that contains one of the components for example, there can be a capsule or ampoule with a second component that enters into a chemical or physical reaction with the other, which leads to an increase in volume and an expansion to build up a compressive tension ( Fig. 12 ).
  • the components can, for example, form a flexible, hardening plastic foam that permanently but flexibly enlarges the chamber. But there are also inorganic materials that can be irreversibly expanded by a second component, for example various clay materials or gypsum when water is added.
  • a second component can also be dispensed with if the triggering reagent is water.
  • the reaction could also be triggered by diffusing moisture.
  • An expansion "with a time fuse" would then arise.
  • the figures show that in this case the joint filling element is produced with a central constriction, that is to say in each case a concave upper and / or lower side, in order to obtain flat surfaces after the expansion.
  • the desired compressive prestress can also be achieved by using a material for the joint filling element 27 which itself swells when absorbing moisture.
  • This material is known as a swell seal. It is a 1-component, solvent-free and water-swellable flexible plastic material based on polyurethane. It is particularly advantageous that it has excellent adhesion properties on a wide variety of substrates. Here, it would only have to be ensured that the joint filling element 27 is shielded from water between production and use, which, however, is not a problem during production and storage in a company. If necessary, a tear-off cover could be provided.
  • Figures 13 and 14 show an embodiment of the pretensioning device 51, which has a chamber 54 in which, possibly in a hose 60 located in the chamber 54, a negative pressure is generated after the production of the joint filling element 27, which causes the hose, the chamber and the central one to contract Part of the joint filling element is associated.
  • the hose 60 can then be pierced at one end of the elongated joint filling element and thus enlarge the hose and also the chamber.
  • FIGS 15 and 16 an embodiment of the pretensioning device 51, in which after the production of the joint filling element this is placed under lateral pressure, which is maintained by an inner tensioning element 61, for example by sewing between the inside and outside 35,36 of the filling element 27. This can be done with a thread 62, which melts easily, so that heating causes it to crack ( Fig. 16 ) and it releases the compressive stress stored in the joint filling element 27.
  • Track bed 11 Grooved rail 12th Rail head 13th Tread 14th Track channel 15th Lane channel side 16 Rail web 17th Rail foot 18th Foot profile 19th Rail chamber 20th Chamber filling element 21 bottom 22nd Rail head side 23 horizontal plane 24 Base plate 25th Track bed foundation 26th Joint filling elements 27 Adhesive layer 28 Remodeling surface 30th modification 31 Top 33 bottom 34 inside 35 Outside 36 Inward rounding 37 Concrete conversion sub-layer 38 Asphalt layer 39 Adhesive layer 40 fleece 41 chamfer 43 tissue 45 Release agent 46 Gap 50 Pretensioning device 51 Buckling element 53 chamber 54 Leaf spring 55 trigger 56 Turns 57 Spring legs 58 Wall 59 hose 60 Clamping element 61 thread 62

Description

Anwendungsgebiet und Stand der TechnikField of application and state of the art

Die Erfindung betrifft eine elastisch zu lagernde Schiene, die einen Schienenkopf mit einer Lauffläche für die Fahrzeugräder, einen Schienenfuß und einen diese verbindenden Schienensteg aufweist, insbesondere eine Rillenschiene, die dazu bestimmt ist, von einem ggf. mehrschichtigen, eine Einbettung der Schiene bildenden Um-/Unterbau, dessen Oberfläche im Höhen-Bereich der Lauffläche liegt, zumindest einseitig umgeben zu werden, wobei zwischen der Einbettung und der Seitenfläche des Schienenkopfes eine Fuge besteht, die mit einem Fugenfüllelement auszufüllen ist. Die Erfindung betrifft ferner ein Verfahren zur elastischen Verlegung einer Schiene in einem Gleisbett.The invention relates to a rail to be elastically supported, which has a rail head with a running surface for the vehicle wheels, a rail foot and a rail web connecting these, in particular a grooved rail which is intended to be replaced by a possibly multilayered surrounding that forms an embedding of the rail. / Substructure, the surface of which is in the height range of the running surface, to be surrounded at least on one side, with a joint between the embedding and the side surface of the rail head which is to be filled with a joint filling element. The invention also relates to a method for the elastic laying of a rail in a track bed.

Bahnen, die bewohnte Gebiete befahren, wie Straßenbahnen, haben Schienen, die häufig in den im Folgenden auch als Umbau bezeichneten Straßenkörper integriert sind. Die Schienen-Laufflächen für die Fahrzeugräder liegen dabei fast fluchtend zur Straßenkörper-Oberfläche. Im Bereich dieser Oberfläche besteht zwischen dem starren Straßenkörper und der Schiene eine Fuge, die nach dem Einbau der Schiene und der Fertigstellung des Straßenkörpers mit einer flüssigen, aushärtbaren Vergußmasse (Beton und/oder Asphalt) gefüllt wird. Zur Verminderung von Vibrationen und zur Schalldämmung sowohl für das Fahrzeug als auch für die Umgebung sind die Schienen elastisch gelagert. Daher wird der Schienenkopf zusätzlich zu thermischen Bewegungen auch bei der Überfahrt des Fahrzeugs nicht nur in vertikaler, sondern auch in horizontaler Richtung nicht unerheblich ausgelenkt. Das führt zu einer Spaltbildung im Bereich der Fuge, da das Fugenmaterial keine gute Haftung zur Schiene und zum Straßenkörper hat. Beim Einstellen der Eigenschaften des Fugenmaterials muss stets zwischen der Aushärtung bei technischer Elastizität und der Haftfähigkeit entschieden werden, was keine idealen Bedingungen für die Spaltfreiheit schafft. Vorbereitung der Fuge und Aufbringung des Fugenmaterials sind auf der Baustelle zeitaufwändig und dennoch nicht ideal zu lösen.Railways that travel on inhabited areas, such as trams, have rails that are often integrated into the road structure, which is also referred to as conversion below. The rail treads for the vehicle wheels are almost flush with the road surface. In the area of this surface there is a joint between the rigid road body and the rail, which is filled with a liquid, hardenable casting compound (concrete and / or asphalt) after the rail has been installed and the road body has been completed. The rails are elastically mounted to reduce vibrations and to provide soundproofing for both the vehicle and the environment. Therefore, in addition to thermal movements, the rail head is deflected not only in the vertical but also in the horizontal direction when the vehicle travels over it. This leads to the formation of a gap in the area of the joint, as the joint material does not adhere well to the rail and the road structure. When setting the properties of the grouting material, a decision must always be made between curing with technical elasticity and adhesion, which does not create ideal conditions for the absence of gaps. Preparing the joint and applying the joint material are time-consuming on the construction site, but still not ideally solved.

Die EP 2 960 370 A1 zeigt einen "Schuh" für eine Vignol-Schiene in Form einer aus Kunststoff bestehenden Hülle mit Luftkammern, die die Schiene bis auf die Laufflächen einhüllt. Dabei wird unter dem Schienenfuß noch eine elastische Zwischenlage in die Hülle eingelegt. Ein Anschluss an einen Straßenkörper o.dgl. ist nicht vorgesehen. Die die Schiene ganz umgebende Hülle ist auch zu der wichtigen elektrischen Isolierung der Schiene vom Untergrund vorgesehen.the EP 2 960 370 A1 shows a "shoe" for a Vignol rail in the form of a plastic cover with air chambers that envelops the rail except for the running surfaces. An elastic intermediate layer is inserted into the sleeve under the rail foot. A connection to a road body or the like. is not scheduled. The casing completely surrounding the rail is also provided for the important electrical insulation of the rail from the ground.

Die EP 2 019 168 B1 beschreibt eine ähnliche Hülle für eine Rillenschiene. Die Hülle endet vor dem oberen Teil der Schienenkopfseiten. Der daran anschließende, am untere Teil des Schienenkopfs der Rillenschiene anliegende, Bereich der Hülle ist durch einen Klebestreifen mit der Schiene verbunden. Über den Einbau in einem Straßenkörper und insbesondere eine Gestaltung der Fuge zum Schienenkopf sind in der Schrift keine Aussagen gemacht.the EP 2 019 168 B1 describes a similar cover for a grooved rail. The shell ends in front of the upper part of the rail head sides. The area of the casing adjoining this, resting on the lower part of the rail head of the grooved rail, is connected to the rail by an adhesive strip. No statements are made in the document about the installation in a road body and, in particular, the design of the joint to the rail head.

In der WO 2004/048 696 ist ebenfalls eine Ganz-Hülle für eine Rillenschiene gezeigt, die teilweise bis auf die Höhe der Lauffläche an den Schienenkopfseiten hochragt. Es wird dort auch von hafterhöhenden Partikeln gesprochen, die auf dem oberen Ende der Hülle liegen.In the WO 2004/048 696 a complete cover for a grooved rail is also shown, which partially protrudes up to the height of the running surface on the rail head sides. There is also talk of adhesion-increasing particles lying on the upper end of the casing.

Die EP 1 206 599 B1 beschreibt seitlich an einer Rillenschiene anzusetzende Profile, die an den Schienenkopfseiten bis nahe an die Lauffläche hinaufragen. Dadurch soll die Schiene von dem bis dicht an die Schiene heranreichenden Straßenaufbau abgeschirmt werden.the EP 1 206 599 B1 describes profiles to be attached to the side of a grooved rail, which protrude on the rail head sides up to close to the running surface. This is intended to shield the rail from the road structure that comes close to the rail.

Auch die DE 10 2016 114 172 A1 zeigt seitlich an einer Rillenschiene anzubringende Profile, die die Schienenkopfseiten überwiegend freilassen. Eine auf die Schiene aufgesprühte Isolierschicht reicht bis an die Lauffläche heran. Die Fuge zum Körper ist mit einem Fugenverguss wie vorher beschrieben aufgefüllt.Also the DE 10 2016 114 172 A1 shows profiles to be attached to the side of a grooved rail, which leave the sides of the rail head blank for the most part. An insulating layer sprayed onto the rail extends right up to the running surface. The joint to the body is filled with a joint filler as described above.

Die EP 1 331 310 A2 zeigt eine Rillenschiene, bei deren Montage zunächst elastische Platten an der Unterseite der Schienenfüße angeklebt werden. Linke und rechte Lagerteile werden an den Schienensteg geklebt, wobei eine elastische Lage nach oben und unten über die Stützteile übersteht. In der Folge wird die Baugrube bis zur vorgegebenen Höhe mit Beton 11 ausgegossen, der an die elastischen Lagen seitlich angrenzt und in den über die Seitenwände der elastischen Lagen vorstehenden Teil eines Montagegitters eindringt, so dass bei der Aushärtung des Betons eine Verankerung der Lagerteile und somit der Schiene im Beton erfolgt. Eine den Straßenbelag bildende Asphaltschicht wird auf diese Betonschicht aufgebracht, eine Fuge zum Schienenkopf bzw. zur an diesem anliegenden elastischen Zwischenlage verbleibt. Diese Fuge wird anschließend mit einer bituminösen Vergußmasse vergossen. Schienen mit Fugenfüllelementen sind auch in EP 1 956 143 A1 , EP 1 219 749 A2 , WO 2018/010740 A1 , FR 2911154 A und DE 10 2014 114 172 A1 offenbart.the EP 1 331 310 A2 shows a grooved rail, during the assembly of which elastic plates are first glued to the underside of the rail feet. Left and right bearing parts are glued to the rail web, with an elastic layer protruding above and below the support parts. In As a result, the construction pit is poured up to the specified height with concrete 11, which laterally adjoins the elastic layers and penetrates into the part of a mounting grid protruding over the side walls of the elastic layers, so that when the concrete hardens an anchoring of the bearing parts and thus the Rail is done in concrete. An asphalt layer forming the road surface is applied to this concrete layer, a joint to the rail head or to the elastic intermediate layer resting against it remains. This joint is then grouted with a bituminous grouting compound. Rails with joint fillers are also in EP 1 956 143 A1 , EP 1 219 749 A2 , WO 2018/010740 A1 , FR 2911154 A and DE 10 2014 114 172 A1 disclosed.

Aufgabe und LösungTask and solution

Eine Aufgabe der Erfindung ist es, eine dauerhafte und für die elastische Schienenlagerung geeignete Fuge zwischen dem Schienenkopf und dem angrenzenden Umbau mit geringem Verlegungsaufwand an der Baustelle zu schaffen.One object of the invention is to create a permanent joint that is suitable for elastic rail mounting between the rail head and the adjacent remodeling with little installation effort at the construction site.

Diese Aufgabe wird gelöst durch die elastisch zu lagernde Schiene des Anspruchs 1 und durch das Verfahren zur elastischen Verlegung einer Schiene des Anspruchs 11. Insbesondere ist ein vorgefertigtes Fugenfüllelement bereitgestellt, das aus einem elastischen Material besteht, mit einer dem Schienenkopf zugekehrten Innenseite und einer diesem abgekehrten Außenseite, einer Oberseite und einer Unterseite ausgebildet ist, wobei die Innenseite an der Seitenfläche des Schienenkopfes vor der Verlegung der Schiene dauerhaft haftend angebracht ist, eine der Innenseite gegenüberliegende Außenseite zum Umbau haftvermittelnd und eine einem Schienenfuß zugewandte Unterseite haftverhindernd ausgebildet ist.This object is achieved by the elastically mounted rail of claim 1 and by the method for the elastic laying of a rail of claim 11. In particular, a prefabricated joint filling element is provided which consists of an elastic material, with an inside facing the rail head and an inside facing away from it Outside, an upper side and a lower side is formed, wherein the inner side is permanently adhered to the side surface of the rail head before the laying of the rail, an outer side opposite the inner side is designed to promote adhesion and an underside facing a rail foot is designed to prevent adhesion.

Die Schiene kann also vorher, z.B. in einer Werkstatt und vor dem Transport zur Verlegungsstelle mit je einem Fugenfüllelement auf beiden Seiten des Schienenkopfs versehen werden, das fest angebracht ist und auf den nach außen weisenden Seiten dazu vorbereitet ist, nach der elastischen Befestigung der Schiene auf dem Untergrund mit einem Umbau-Material, also Beton oder Asphalt, haftvermittelnd in Eingriff gebracht zu werden. Ebenso wie auf der Innenseite kann durch Anbringung eines Klebemittels erfolgen. Auf der Innenseite besteht noch der Vorteil, dass die Schienenkopfseiten, anders als auf der Baustelle, durch Säuberung, Primern o.dgl. zu einem besonders guten Halt vorbereitet werden können. Es ist auch möglich, das Material des Fugenfüllelementes, vorzugsweise ein sielanterminiertes Polymer, selbst als Kleber an der Schienenkopfseite zu verwenden. Die silanterminierten Polymere haben eine sehr hohe Elastizität und Rückverformung, benötigen allerdings länger zum Aushärten, weil sie feuchtigkeits-aushärtend sind, was auf der Baustelle stören würde.The rail can therefore be provided beforehand, for example in a workshop and before being transported to the installation site, with a joint filling element on both sides of the rail head, which is firmly attached and is prepared on the outward-facing sides, after the elastic Attachment of the rail to the ground with a conversion material, i.e. concrete or asphalt, to be brought into engagement with adhesion. Just as on the inside, an adhesive can be applied. On the inside there is still the advantage that the rail head sides, unlike on the construction site, by cleaning, primers or the like. can be prepared for a particularly good hold. It is also possible to use the material of the joint filling element, preferably a slab-terminated polymer, itself as an adhesive on the rail head side. The silane-terminated polymers have a very high elasticity and recovery, but take longer to harden because they are moisture-hardening, which would be a problem on the construction site.

Auf der Außenseite der Fugenfüllelemente können, ggf. unterstützend zur Klebung oder diese ersetzend, zahlreiche Maßnahmen vorgesehen sein, die eine Haftung durch Eingriff oder Einbettung des Umbau-Materials bewirken. Für eine Sicherung in vertikaler Richtung kann zum Beispiel eine formschlüssige Verbindung zwischen Fugenfüllelement und Umbau, zum Beispiel ein Hinterschnitt, vorgesehen sein.Numerous measures can be provided on the outside of the joint filling elements, possibly supporting or replacing the bonding, which bring about adhesion by engaging or embedding the conversion material. For securing in the vertical direction, for example, a form-fitting connection between the joint filling element and the conversion, for example an undercut, can be provided.

Erfindungsgemäß ist aber die Einbringung von haftvermittelnden Elementen in das Material des Fugenfüllelementes, die ein Vlies aufweisen.According to the invention, however, the introduction of adhesion-promoting elements which have a fleece into the material of the joint filling element.

Das kann beispielsweise ein Vlies sein, dessen Fasern die Außenseite und erfindungsgemäß auch die Innenseite des Fugenfüllelementes überragt und bei der Herstellung des Fugenfüllelementes so eingebracht ist, dass es in das Material des Fugenfüllelementes eingebettet ist und auf der Innenseite den Kleber und/oder auf der Außenseite die Betonschlemme oder den Asphalt aufnimmt, so dass daraus eine formschlüssig integrierte Verbindung entsteht, die zugfeste Elemente als Verankerung zur Verfügung stellt. Dabei werden vorliegend unter haftvermittelnd Elemente oder Anordnungen verstanden, die mittelbar und/oder unmittelbar insbesondere durch form-, kraft- oder stoffschlusseine Positionierung benachbarter Elemente beziehungsweise deren Oberflächen zueinander fixieren.This can be, for example, a fleece, the fibers of which protrude beyond the outside and, according to the invention, also the inside of the joint filling element and is introduced during the production of the joint filling element in such a way that it is embedded in the material of the joint filling element and the adhesive on the inside and / or on the outside the concrete slurry or the asphalt, so that a form-fitting, integrated connection is created that provides tensile elements as anchoring. In the present case, the term adhesion-promoting elements or arrangements are understood to be understood here, which fix the positioning of adjacent elements or their surfaces to one another indirectly and / or directly, in particular by positively locking, non-positively or materially locking.

Auch andere Verankerungsmaßnamen sind sinnvoll, zum Beispiel die Einbettung von Fasern oder eines Gewebes, zum Beispiel eines oder mehrerer Gewebestreifen, die über die Außenseite des Fugenfüllelementes vorragen. All dies schafft eine nicht nur druckfeste, sondern auch zugfeste Verbindung, die der Tatsache Rechnung trägt, dass die Schiene im Betrieb nicht nur vertikal, sondern auch horizontal ausgelegt wird, wobei das Fugenfüllelement diese Bewegungen als Kompression und Dehnung aufnehmen soll, ohne dass es sich von den Schienenkopfseiten und/oder dem Umbau (Beton oder Asphalt) löst und Spalten gebildet, in die Wasser und Schmutz eindringen können, was zu einer völligen Ablösung der Fuge führen kann.Other anchoring measures are also useful, for example embedding fibers or a fabric, for example one or more fabric strips that protrude beyond the outside of the joint filling element. All of this creates a connection that is not only pressure-resistant, but also tensile-resistant, which takes into account the fact that the rail is laid out not only vertically but also horizontally during operation, whereby the joint filling element is supposed to absorb these movements as compression and expansion without it loosens from the rail head sides and / or the conversion (concrete or asphalt) and forms gaps into which water and dirt can penetrate, which can lead to the joint becoming completely detached.

Um die seitlichen Bewegungen aufnehmen zu können, soll das Fugenfüllelement keine Haftverbindung an seiner Unterseite, meist zu einem Schienenkammer-Füllelement oder dem Um- oder Unterbau eingehen. Dazu kann ein Trennmittel eingesetzt werden, entweder in Form einer aufgebrachten oder aufgespalteten Trennmittelschicht oder durch Aufstreuung eines trockenen Sandes.In order to be able to absorb the lateral movements, the joint filling element should not enter into any adhesive connection on its underside, mostly to a rail chamber filling element or the surrounding or substructure. For this purpose, a release agent can be used, either in the form of an applied or split release agent layer or by sprinkling on dry sand.

Nach einem weiteren, besonders vorteilhaften Merkmal der Erfindung kann das Fugenfüllelement mit einer nach der Anbringung des Umbaus auslösbaren Vorspanneinrichtung versehen sein, die eine Druckspannung zwischen Umbau und Schienenkopfseite aufbringt. Dies würde es vermeiden, dass bei seitlichen Bewegungen wesentliche Zugspannungen auf die Verbindungsstellen des Fugenfüllelements wirken, wenn die Vorspannung so bemessen ist, dass auch bei maximaler Auslenkung die Druckvorspannung überwiegt.According to a further, particularly advantageous feature of the invention, the joint filling element can be provided with a pretensioning device which can be triggered after the conversion has been applied and which applies compressive stress between the conversion and the side of the rail head. This would prevent significant tensile stresses from acting on the connection points of the joint filling element during lateral movements if the prestressing is dimensioned such that the compressive prestressing predominates even with maximum deflection.

Zu diesem Zweck können schon bei der Herstellung des Fugenfüllelementes Vorrichtungen in dieses eingebracht werden, zum Beispiel Knickelemente, die quer zur Vorspannrichtung, also in vertikaler Richtung, also in Erstreckungsrichtung zwischen Außen- und Innenseite des Fugenfüllelements, ausgelenkt sind und durch Einwirkung auf das Fugenfüllelement, zum Beispiel durch einen Schlag oder Druck auf dessen Oberseite, nach Art eines Schnappelementes eine gestreckte und damit verlängerte und das Fugenfüllelement vorspannende Form annehmen.For this purpose, devices can be introduced into the joint filling element during manufacture, for example buckling elements that are deflected transversely to the prestressing direction, i.e. in the vertical direction, i.e. in the direction of extension between the outside and inside of the joint filling element and, by acting on the joint filling element, for example by a blow or pressure on its upper side Kind of a snap element assume an elongated and thus elongated and the joint filling element prestressing shape.

Möglich ist auch eine vorgespannte U-förmige Blattfeder, die in einer Kammer, zum Beispiel in einem Kanal des Fugenfüllelementes, vorgesehen ist und in ihrer vorgespannten Lage von einem Auslöser gehalten wird, der wiederum durch Einwirkung auf die Oberseite des elastischen Fugenfüllelementes die Schenkel der Blattfeder freigibt.A pre-tensioned U-shaped leaf spring is also possible, which is provided in a chamber, for example in a channel of the joint filling element and is held in its pre-tensioned position by a trigger which, in turn, acts on the upper side of the elastic joint filling element, the legs of the leaf spring releases.

Es können auch sich irreversibel ausdehnende Materialien in eine Kammer des Fugenfüllelementes eingebracht werden, deren Ausdehnung zum Beispiel durch Wärmeeinwirkung (ggf. Mikrowelle) ausgelöst wird, oder es können Mehr-Komponenten Kunststoffe oder Chemikalien verwendet werden, die getrennt in eine Kammer eingebracht, aber durch Einwirkung auf das Fugenfüllelement zur Mischung oder Reaktion gebracht werden. Es ist auch möglich, in eine solche Kammer ein Material einzubringen, das durch Diffusion von Feuchtigkeit durch das Fugenfüllelement sein Volumen vergrößert. Dazu sind verschiedene mineralische und organische Materialien einsetzbar. Es ist dabei von Vorteil, dass bei üblichen Bauzeiten von Gleisen ausreichend Zeit zur Verfügung steht, bis die volle Druckvorspannung erreicht werden muss.It is also possible to introduce irreversibly expanding materials into a chamber of the joint filling element, the expansion of which is triggered, for example, by the action of heat (possibly microwave), or multi-component plastics or chemicals can be used that are separately introduced into a chamber, but by Action on the joint filling element can be caused to mix or react. It is also possible to introduce a material into such a chamber which increases its volume by diffusion of moisture through the joint filling element. Various mineral and organic materials can be used for this purpose. It is advantageous that, given the usual construction times for tracks, sufficient time is available until the full compressive prestress has to be achieved.

Eine weitere sinnvolle Möglichkeit besteht darin, in dem Fugenfüllelement eine Kammer zu schaffen, die selbst oder zum Beispiel durch einen eingelegten Schlauch unter Unterdruck gesetzt wird, wobei nach dem Einbau der Schiene eine winzige Verbindung mit der Atmosphäre ausreicht, um den Schlauch und damit die Kammer zur Ausdehnung und damit zur Vorspannung des Fugenfüllelementes zu bringen.Another useful option is to create a chamber in the joint filling element, which is placed under negative pressure itself or, for example, by an inserted hose, whereby after the installation of the rail a tiny connection with the atmosphere is sufficient to create the hose and thus the chamber to expand and thus to pretension the joint filling element.

Es ist auch möglich, das Fugenfüllelement nach seiner Herstellung zwischen seinen Innen- und Außenseiten unter Druckspannung zu setzen und diese durch ein äußeres Spannelement zu blockieren, zum Beispiel durch einen Klebestreifen, der nach der Verlegung der Schiene entfernt wird. Das kann auch durch ein inneres Spannelement geschehen, beispielsweise eine Art Vernähung, wobei die Nähfäden durch Wärmeeinwirkung zerstört werden können. Schließlich ist es auch möglich, das Fugenfüllelement ganz oder teilweise aus einem Quell-Kunststoff herzustellen, der sich unter Wasseraufnahme ausdehnt.It is also possible to put the joint filling element under compressive stress between its inner and outer sides after its production and to block it with an outer tensioning element, for example with an adhesive strip, which is removed after the rail has been laid. This can also be done by an internal tensioning element, for example a kind of sewing, whereby the sewing threads can be destroyed by the action of heat. Finally, it is also possible to manufacture the joint filling element entirely or partially from a swelling plastic that expands when absorbing water.

Die Erfindung schafft ein Verfahren zur elastischen Verlegung einer, insbesondere erfindungsgemäßen Schiene in einem Gleisbett, die einen Schienenkopf mit einer Lauffläche für die Fahrzeugräder, einen Schienenfuß und einen diese verbindenden Schienensteg aufweist, bei der in einem ersten Schritt vor der Verlegung, zum Beispiel in einer Werkstatt oder einem Herstellungsbetrieb, ein vorgefertigtes Fugenfüllelement an den Schienenkopfseiten dauerhaft haftend angebracht wird. Die so vorbereitete Schiene wird an einem Unterbau elastisch montiert und die Schiene und insbesondere das Fugenfüllelement zugfest haftend mit einem Umbau umgeben, also mit Beton oder Asphalt umgossen wird. Dabei kann das Material des Umbaus vorzugsweise über die Außenseite des Fugenfüllelementes hervorstehende Elemente umschließen und haftend nach Art von Zugankern einbetten.The invention creates a method for the elastic laying of a rail, in particular a rail according to the invention in a track bed, which has a rail head with a running surface for the vehicle wheels, a rail foot and a rail web connecting these, in which in a first step before the laying, for example in a Workshop or a manufacturing company, a prefabricated joint filling element is permanently attached to the sides of the rail head. The rail prepared in this way is elastically mounted on a substructure and the rail and, in particular, the joint filling element are enclosed in a tensile-resistant manner with a remodeling, that is, concrete or asphalt is poured around it. The material of the conversion can preferably enclose elements protruding beyond the outside of the joint filling element and embed them in the manner of tie rods in an adhesive manner.

Die Erfindung schafft damit eine Möglichkeit, eine Schienenverlegung in kurzer Zeit und mit geringem Baustellenaufwand vorzunehmen, wobei die Schiene mit dem Umbau, insbesondere einem zur Schiene im wesentlichen ebenengleichen Umbau, wie einem Einbau in einer Straße, dicht und ohne Gefahr einer Spaltbildung mit Eindringen von Feuchtigkeit und Schmutz auch bei nutzungsbedingten Bewegungen der Schiene verbunden ist und bleibt. Es ist dabei auch sichergestellt, dass die Schiene in diesem Bereich gegenüber dem Umbau elektrisch isoliert bleibt, was auch ist. Die Schiene kann im Übrigen elektrisch isoliert sein, wie es auch in der DE 10 2016 114 172 A1 der Anmelderin gezeigt ist. Neben den seitlichen, also horizontalen Bewegungen der Schiene im Betrieb werden von dem Fugenfüllelement auch die vertikalen Schienenbewegungen aufgenommen. Das Fugenfüllelement und seine Haftung sind bestens auch dazu geeignet, Scherbewegungen und Scherkräfte elastisch aufzunehmen.The invention thus creates a possibility of laying the rails in a short time and with little construction site effort, the rail with the conversion, in particular a conversion that is essentially the same as the rail, such as installation in a street, tightly and without the risk of a gap forming with penetration of Moisture and dirt is and remains connected even with use-related movements of the rail. It is also ensured that the rail remains electrically isolated from the conversion in this area, which is what it is. The rail can also be electrically insulated, as in the DE 10 2016 114 172 A1 the applicant is shown. In addition to the lateral, that is to say horizontal, movements of the rail during operation, the joint filling element also absorbs the vertical rail movements. The joint filling element and its adhesion are also ideally suited to elastically absorb shear movements and shear forces.

Die Erfindung schafft also eine Schiene und einen elastischen Schieneneinbau, bei dem zum spaltfreien dichten Schließen der zu beiden Seiten der Schiene entstehende Fuge bereits bei der Vorbereitung der Schiene ein vorgefertigtes flexibles Fugenfüllelement vorgesehen ist. Es sind haftvermittelnde Elemente und Maßnahmen vorgesehen, um eine druck- und zugfeste Verbindung zwischen Schiene und dem erst nach der Schienenmontage angebrachten Umbau, z.B. aus Beton oder Asphalt, zu schaffen.The invention thus creates a rail and an elastic rail installation in which a prefabricated flexible joint filling element is provided during the preparation of the rail for the gap-free, tight closing of the joint that is created on both sides of the rail. Adhesion-promoting elements and measures are provided to create a pressure-resistant and tensile-resistant connection between the rail and the conversion, e.g. made of concrete or asphalt, which is only attached after the rail has been installed.

Zur weiteren Verbesserung der rissfreien Aufnahme insbesondere seitlicher Bewegungen der Schiene kann in dem Fugenfüllelement ein auslösbarer Dehnungsspeicher vorgesehen sein, der nach dem Einbau der Schiene eine Druckvorspannung im Fugenfüllelement zwischen dem Umbau und der Schiene schafft und aufrechterhält.To further improve the crack-free absorption of, in particular, lateral movements of the rail, a releasable expansion memory can be provided in the joint filling element, which creates and maintains a compressive prestress in the joint filling element between the conversion and the rail after the rail has been installed.

Die vorstehenden und weitere Merkmale gehen außer aus den Ansprüchen auch aus der Beschreibung und den Zeichnungen hervor, wobei die einzelnen Merkmale jeweils für sich allein oder zu mehreren in Form von Unterkombinationen bei einer Ausführungsform der Erfindung und auf anderen Gebieten verwirklicht sein und vorteilhafte sowie für sich schutzfähige Ausführungen darstellen können. Die Unterteilung der Anmeldung in einzelne Abschnitte sowie Zwischenüberschriften beschränken die unter diesen gemachten Aussagen nicht in ihrer Allgemeingültigkeit. Vorstehend als mögliche (kann) beschriebene Ausführungen beschriebene Merkmale sind stets als bevorzugte Ausführungsformen der Erfindung zu verstehen.The above and other features emerge from the claims and also from the description and the drawings, with the individual features being implemented individually or in combination in the form of sub-combinations in one embodiment of the invention and in other areas and being advantageous and for themselves can represent protectable designs. The subdivision of the application into individual sections as well as subheadings do not limit the general validity of the statements made under these. Features described above as possible (can) embodiments are always to be understood as preferred embodiments of the invention.

Kurzbeschreibung der ZeichnungenBrief description of the drawings

Ausführungsbeispiele der Erfindung sind in den Zeichnungen schematisch dargestellt und werden im Folgenden näher erläutert. Es zeigen:

Fig. 1
einen Querschnitt durch eine elastisch gelagerte Rillenschiene mit Fugenfüllelementen und mit Beton-Umbau,
Fig. 2 und 3
Teilquerschnitte durch einen Schienenkopf und Fugenfüllelemente
Fig. 4
einen Querschnitt entsprechend Figur 1 mit Fugenfüllelementen und einer Verankerung in einem Asphalt-Umbau,
Fig. 5 und 6
Teilquerschnitte entsprechend Fig. 2 und 3 mit anderen Fugenfüllelementen,
Fig. 7 bis 16
vergrößerte Schnittzeichnungen von an jeweils einer Seite eines Schienenkopfes angeordneten Fugenfüllelementen mit verschiedenen Ausführungsformen von auslösbaren Vorspanneinrichtungen jeweils vor und nach der Auslösung.
Embodiments of the invention are shown schematically in the drawings and are explained in more detail below. Show it:
Fig. 1
a cross-section through an elastically mounted grooved rail with joint filling elements and with concrete surround,
Figs. 2 and 3
Partial cross-sections through a rail head and joint filling elements
Fig. 4
a cross section accordingly Figure 1 with joint filling elements and an anchoring in an asphalt conversion,
Figures 5 and 6
Partial cross-sections accordingly Fig. 2 and 3 with other joint filling elements,
Figures 7 to 16
Enlarged sectional drawings of joint filling elements arranged on each side of a rail head with different embodiments of releasable pretensioning devices in each case before and after the release.

Detaillierte Beschreibung bevorzugter AusführungsbeispieleDetailed description of preferred exemplary embodiments

Der in Fig. 1 gezeigte Schnitt stellt eine für ein nicht dargestelltes Schienenfahrzeug, zum Beispiel eine Straßenbahn, vorgesehene, in einem Gleisbett 11 elastisch gelagerte Rillenschiene 12 dar. Sie hat einen Schienenkopf 13 mit einer Lauffläche 14 für die Fahrzeugräder, einem Spurkanal 15 für den Spurkranz der Fahrzeugräder und einer Spurkanalseite 16. Der Schienenkopf 13 wird durch einen Schienensteg 17 mit dem Schienenfuß 18 verbunden. Dieser ist auf einem elastischen Fußprofil 19 gelagert. Dieses wiederum liegt auf einer Basisplatte 25, die Unebenheiten der Gleisbettgründung 26 ausgleicht.The in Fig. 1 The section shown represents a rail vehicle (not shown), for example a tram, provided elastically in a track bed 11 grooved rail 12 Track channel side 16. The rail head 13 is connected to the rail foot 18 by a rail web 17. This is mounted on an elastic foot profile 19. This in turn rests on a base plate 25 which compensates for unevenness in the track bed foundation 26.

In den auf beiden Seiten zwischen dem Schienenkopf 13 und dem Schienenfuß 18 gebildeten Schienenkammern 20 ist jeweils ein entsprechend geformtes Kammerfüllelement 21 eingesetzt, dass sich auf dem Schienenfuß einerseits und an den Unterseiten 22 des Schienenkopfes 13 andererseits abstützt. Die Kammerfüllelemente enden etwas unterhalb der Schienenkopfseiten 23 in einer im Wesentlichen horizontalen Fläche 24. Zwischen den Schienenkopfseiten 23 und einem nach der Montage der Schiene 11 durch Ortbeton und/oder Aufbringung einer Asphaltschicht gebildeten Umbau 31 ist auf beiden Seiten der Schiene eine Fuge 50 gebildet.In the rail chambers 20 formed on both sides between the rail head 13 and the rail foot 18, a correspondingly shaped chamber filling element 21 is inserted that is supported on the rail foot on the one hand and on the undersides 22 of the rail head 13 on the other. The chamber filling elements end slightly below the rail head sides 23 in an essentially horizontal surface 24. A joint 50 is formed on both sides of the rail between the rail head sides 23 and a conversion 31 formed by in-situ concrete and / or the application of an asphalt layer after the rail 11 has been installed.

Zur Füllung dieser Fuge 50 sind an den Schienenkopfseiten 23 auf beiden Seiten Fugenfüllelemente 27 vor der Montage der Schiene 11 haftend angebracht. Diese sind aus einem flexiblen Kunststoff, insbesondere silanterminiertem Polymer in Form eines Streifens, zum Beispiel als Stranggussprofil, vorgefertigt. Ebenfalls geeignet sind Polyurethane sowie Polysulfite. Sie haben eine im Wesentlichen in einer Ebene mit der Lauffläche 14 und der Umbau-(Straßen-)oberfläche 30 des Umbaus 31 oder wenig darunter liegende Oberseite 33, eine im dargestellten Beispiel an ein Kammerfüllelement 21 angrenzende Unterseite 34, eine an die Schienenkopfseite angrenzender Innenseite 35 und eine Außenseite 36, die an den Umbau 31 angrenzt.To fill this joint 50, joint filling elements 27 are adhered to the rail head sides 23 on both sides before the rail 11 is installed. These are prefabricated from a flexible plastic, in particular silane-terminated polymer in the form of a strip, for example as a continuously cast profile. Polyurethanes and polysulfites are also suitable. They have an upper side 33 which is essentially in one plane with the running surface 14 and the conversion (road) surface 30 of the conversion 31 or slightly below it, an underside 34 adjoining a chamber filling element 21 in the example shown, an inside adjoining the rail head side 35 and an outer side 36 which adjoins the enclosure 31.

In Fig. 2 und 3 ist dargestellt, dass die Verbindung zu den Schienenkopfseiten durch eine Kleberschicht 28 erfolgt, und zwar bereits bei der Vorbereitung der Schiene in einer darauf eingerichteten Werkstatt oder einer entsprechenden Einrichtung nahe der Verlegestelle. Dadurch ist sichergestellt, dass die Verklebung unter besten Bedingungen stattfindet, was die Positionierung, Sauberkeit, Temperierung und Klebeflächen-Vorbereitung an Schiene 12 und Fugenfüllelement 27 betrifft.In Fig. 2 and 3 it is shown that the connection to the rail head sides is made by an adhesive layer 28, to be precise already during the preparation of the rail in a workshop set up on it or a corresponding facility near the laying point. This ensures that the bonding takes place under the best conditions in terms of positioning, cleanliness, temperature control and preparation of the bonding surface on the rail 12 and joint filling element 27.

Die in Fig. 2 und 3 angedeutete Kleberschicht 28 kann ein an der Schiene und am Material des Fugenfüllelementes 20 gut haftender Kleber sein, vorteilhaft auch aus dem gleichen Material wie das Fugenfüllelement selbst. Diese Beispiele zeigen auch eine Strukturierung der Außenseiten 36 des Fugenfüllelementes 27 dergestalt, dass ein Formschluss (Hinterschnitt) zumindest in vertikaler Richtung entsteht, indem bei Fig. 2 die Außenseite 36 sich nach unten erweiternd schräg verläuft und Fig. 3 die Außenseite 36 eine Einwärtsrundung 37 aufweist. Zusammen mit der auf der Spurkanalseite ohnehin schrägen Außenseite 23 des Schienenkopfes entsteht, wenn der Umbau 31 durch Eingießen mit Beton oder (siehe Figur 2 bis 4) mit einer auf die Beton-Umbau-Unterschicht 38 aufgebrachten Asphaltschicht 39, die zusammen den Umbau 31 bilden, vorgenommen ist, eine in vertikaler Richtung (nach oben) formschlüssig gesicherte Anordnung.In the Fig. 2 and 3 The indicated adhesive layer 28 can be an adhesive that adheres well to the rail and to the material of the joint filling element 20, advantageously also made of the same material as the joint filling element itself. These examples also show a structuring of the outer sides 36 of the joint filling element 27 in such a way that a form fit (undercut) arises at least in the vertical direction by at Fig. 2 the outside 36 extends obliquely widening downwards and Fig. 3 the outside 36 has an inward curvature 37. Together with the outside 23 of the rail head, which is inclined anyway on the lane channel side, the conversion 31 is created by pouring concrete or (see Figures 2 to 4) with an asphalt layer 39 applied to the concrete conversion sub-layer 38, which together form the conversion 31 , is made, a positively secured arrangement in the vertical direction (upwards).

In Fig. 2 und 3 ist auch auf der Außenseite 36 des Fugenfüllelementes 27 eine Kleberschicht 28 dargestellt. Da auf der Baustelle möglichst auf Arbeiten, wie die Aufbringung von Klebstoffen etc. verzichtet werden soll, ist ein Kleber dort z.B. nur dann sinnvoll, wenn durch die Aufbringung des Umbaus eine vorher auf das Fugenfüllelement aufgebrachte Kleberschicht 28 aktiviert werden kann, z.B. wenn bei einem Umbau 31 mit einer Asphaltschicht 39 bei deren flüssiger Aufbringung ausreichend Wärme zur Verfügung steht, um eine aus Schmelzkleber bestehende Kleberschicht 28 zu aktivieren.In Fig. 2 and 3 an adhesive layer 28 is also shown on the outside 36 of the joint filling element 27. Since work on the construction site, such as the application of adhesives etc., should be avoided as far as possible, an adhesive is only useful there, for example, if an adhesive layer 28 previously applied to the joint filling element can be activated by applying the conversion, e.g. if a Rebuilding 31 with an asphalt layer 39, when the liquid is applied, sufficient heat is available to activate an adhesive layer 28 consisting of hot-melt adhesive.

In Fig. 1 ist angedeutet, dass das Fugenfüllelement an seiner Innenseite wie an der Außenseite bereits bei der Herstellung mit einem Vlies 41 versehen wurde, das zu einem Teil, z.B. zur Hälfte seiner Dicke in das Material des Fugenfüllelementes 27 eingebettet ist. Es ist ein aus Kunststoff bestehendes, aus mehreren Lagen verpresstes Vlies mit hoher Dichte. Als Vlies ist hier jedes Material zu verstehen, das aus Fasern oder Fäden in einer regelmäßigen oder unregelmäßigen, z.B. wirren Schicht aufgebaut ist und Hinterschnitten liegende Hohlräume freilässt. Dabei sollte es eine gewisse Dicke haben, um die Materialien, zwischen denen es die Haftung vermitteln soll, eindringen zu lassen. So ist das Vlies 41 jeweils auf seiner zum Fugenfüllelement 27 weisenden Seite etwa hälftig mit dem Material des Fugenfüllelements 27 gefüllt. Mit einem Verpress-Vorgang kann das Vlies in eine bestimmte Form gebracht werden, so dass sie auch die Schalung für die in Fig.1 dargestellte Fase 43 am Beton-Umbau 31 bilden kann. Das Vlies 41 verbessert die Haftung zu den Schienenkopfseiten, insbesondere, soweit die Zugfestigkeit der Klebe-Verbindung betroffen ist. Durch die eingestellte Saugfähigkeit des Vlieses 41 kann es sowohl bei der Herstellung des vorgefertigten Fugenfüllelementes 27 das silanterminierte Polymer aufnehmen als auch bei dem Verguss zur Herstellung des Umbaus 31 den Beton, d.h. den darin enthaltenen leicht fließfähigen Anteil Schlemme oder Mörtel.In Fig. 1 It is indicated that the joint filling element was already provided with a fleece 41 on its inside and on the outside during manufacture, part of which, for example half of its thickness, is embedded in the material of the joint filling element 27. It is a high-density fleece made of plastic and compressed from several layers. A nonwoven is to be understood here as any material that is made up of fibers or threads in a regular or irregular, for example tangled, layer and leaves cavities lying undercuts free. It should have a certain thickness so that the materials between which it is supposed to provide adhesion can penetrate. Thus, the fleece 41 is filled approximately halfway with the material of the joint filling element 27 on its side facing the joint filling element 27. With a pressing process, the fleece can be shaped so that it can also be used as the formwork for the in Fig. 1 The bevel 43 shown on the concrete structure 31 can form. The fleece 41 improves the adhesion to the sides of the rail head, in particular as far as the tensile strength of the adhesive connection is concerned. Due to the set absorbency of the fleece 41, it can absorb the silane-terminated polymer both during the production of the prefabricated joint filling element 27 and the concrete, ie the easily flowable portion of slurry or mortar contained therein, during the casting for the production of the conversion 31.

Bei der Anbringung an den Schienenkopfseiten 23 dringt die bereits vorher beschriebene Kleberschicht 28 in die aus den Innenseiten 35 der Fugenfüllelemente hervorstehenden Fasern, Schlingen, Schlaufen o.dgl. des Vlieses 41 ein und verbessert die Haftung auch bei einer relativ glatten Oberfläche der Schienenkopfseiten. Diese können auch als Vorbereitung der Verklebung mit einem Haftvermittler (Primer) behandelt worden sein.When attached to the rail head sides 23, the previously described adhesive layer 28 penetrates into the inner sides 35 of the joint filling elements protruding fibers, loops, loops or the like. of the fleece 41 and improves the adhesion even with a relatively smooth surface of the rail head sides. These can also have been treated with an adhesion promoter (primer) in preparation for the bond.

Die Außenseiten 36 der Fugenfüllelemente 27 bilden nach der Verlegung der Schiene 11 in dem oberflächennahen Bereich die Außengrenzen des Schienenkomplexes. Der Umbau wird nun durch Verguss mit dem dafür vorgesehenen Material vorgenommen, also mit Ortbeton (Fig. 1) oder einer Asphaltschicht 39 auf einer Beton-Umbau-Unterschicht (Fig. 4). Dabei dringen die anfangs fließfähigen Bestandteile dieser Materialien, also Beton-Schlemme und der weitgehend flüssige Anteil des meist mit mineralischen Materialien armierten Asphalts in die aus der Außenseite 36 vorstehenden, nicht in das Fugenfüllelement 27 eingebetteten Elemente, also Fasern, Schlingen, Schlaufen o.dgl. des Vlieses ein und bilden somit eine formschlüssige Verankerung des Fugenfüllelementes 27 an dem Umbau 31 und somit eine zugfeste Verbindung zwischen Schiene und Umbau. Um bei Bewegungen der Schiene eine Behinderung der Flexibilität des Fugenfüllelementes 27 zu vermeiden, ist zwischen der horizontalen Fläche 24 des Kammerfüllelementes 21 (bzw. anderer an dieser Stelle vorgesehener Elemente) und der Unterseite des Fugenfüllelementes 27 ein Trennmittel 46 vorgesehen. Als einfachste Ausführung kann dies auch gestreuter Quarzsand sein. Auch Ölpapier oder ein Geotextil-Vlies oder ein aufgesprühtes Trennmittel sind brauchbar.After the rail 11 has been laid, the outer sides 36 of the joint filling elements 27 form the outer boundaries of the rail complex in the area close to the surface. The conversion is now carried out by grouting with the material provided, i.e. with in-situ concrete ( Fig. 1 ) or an asphalt layer 39 on a concrete conversion sub-layer ( Fig. 4 ). The initially flowable constituents of these materials, i.e. concrete slurry and the largely liquid portion of the asphalt, which is usually reinforced with mineral materials, penetrate the elements protruding from the outside 36 and not embedded in the joint filling element 27, i.e. fibers, loops, loops or the like . of the fleece and thus form a form-fitting anchoring of the joint filling element 27 on the conversion 31 and thus a tensile connection between the rail and the conversion. In order to avoid the flexibility of the joint filling element 27 being impeded when the rail moves, a separating means 46 is provided between the horizontal surface 24 of the chamber filling element 21 (or other elements provided at this point) and the underside of the joint filling element 27. As the simplest implementation, this can also be sprinkled quartz sand. Oil paper or a geotextile fleece or a sprayed release agent can also be used.

Fig. 4 zeigt, dass statt des Vlieses an der Außenseite 36 ein oder mehrere Gewebe 45 z.B. in Form längst der Schiene verlaufender Streifen, im Fugenfüllelement eingebettet sind, die in der bereits beschriebenen Weise auch in die zum Umbau 31 gehörende Asphaltschicht 39 eingebettet werden, wenn der Umbau vorgenommen wird. Dies können auch Einzelfasern sein. Bei dieser Ausführung ist auf der Innenseite 35 des Fugenfüllelementes 27, wie beschrieben, ein Vlies 41 als Haftvermittler vorgesehen. Fig. 4 shows that instead of the fleece on the outside 36 one or more fabrics 45, for example in the form of strips running along the rail, are embedded in the joint filling element, which are also embedded in the asphalt layer 39 belonging to the conversion 31 when the conversion is made. These can also be single fibers. In this embodiment, a fleece 41 is provided as an adhesion promoter on the inside 35 of the joint filling element 27, as described.

Fig. 5 zeigt eine Kombination der Ausführung nach Fig. 2 mit einem eingebetteten Gewebestreifen oder Fasern bei einem Beton-Umbau 31. Fig.6 zeigt eine Ausführung, bei der zusätzlich zu dem Vlies 41 auch auf der Außenseite des Fugenfüllelementes 27 ein die Zugfestigkeit verstärkendes Element, ein Gewebestreifen oder Fasern 45, im unteren Teil des Fugenfüllelementes 27 eingebettet sind, wo das Vlies 41 endet. Fig. 5 shows a combination of the execution Fig. 2 with an embedded strip of fabric or fibers in the case of a concrete conversion 31. Fig. 6 shows an embodiment in which in addition to the fleece 41 also on the outside of the joint filling element 27, an element reinforcing the tensile strength, a fabric strip or fibers 45, are embedded in the lower part of the joint filling element 27, where the fleece 41 ends.

Um auch bei Bewegungen der Schiene in horizontaler Richtung eine Spaltbildung im Bereich der Fuge 50 zu vermeiden, kann besonders bevorzugt das Fugenfüllelement 27 mit einer nach der Anbringung des Umbaus auslösbaren Vorspanneinrichtung 51 versehen sein, sozusagen einem Dehnungsspeicher, der hauptsächlich in horizontaler Richtung wirkt. Beispiele sind in den Fig. 7 bis 16 schematisch gezeigt.In order to avoid the formation of a gap in the area of the joint 50 even when the rail moves in the horizontal direction, the joint filling element 27 can particularly preferably be provided with a pretensioning device 51 that can be triggered after the conversion has been applied, so to speak an expansion storage device, which acts mainly in the horizontal direction. Examples are in the Figures 7 to 16 shown schematically.

Fig. 7 und 8 zeigen schematisch angedeutet eine Ausführung der Vorspanneinrichtung 51, bei der in oder an dem Fugenfüllelement 27 ein oder mehrere Knickelemente 53 vorgesehen sind, zum Beispiel als eine Schicht von Kunststoffplättchen, die dachförmig ausgebildet sind. Bei einem Druck auf das Fugenfüllelement nach Aushärtung des Einbaus 31 von oben werden die Knickelemente 53 flach gedrückt und behalten diese Lage auch bei. Dadurch wird im mittleren Bereich des Fugenfüllelementes dessen Material etwas gestreckt und bildet eine Druckvorspannung in den Randbereichen. Fig. 8 zeigt, dass dadurch die Oberseite 33 des Fugenfüllelementes 27 etwas konkav einfallen kann, was aber ausgeglichen werden kann, wenn man diese Oberfläche etwas konvex nach oben ausgebeult herstellt. Figures 7 and 8 show schematically indicated an embodiment of the pretensioning device 51 in which one or more buckling elements 53 are provided in or on the joint filling element 27, for example as a layer of plastic platelets that are roof-shaped. When the joint filling element is pressed from above after the installation 31 has hardened, the buckling elements 53 are pressed flat and also maintain this position. As a result, the material of the joint filling element is stretched somewhat in the middle area and forms a compressive prestress in the edge areas. Fig. 8 shows that the upper side 33 of the joint filling element 27 can thereby be somewhat concave, but this can be compensated for if this surface is made somewhat convex upwardly bulged.

Fig. 9 und 10 zeigen eine Ausführung der Vorspanneinrichtung 51, bei denen einer im Fugenfüllelement 27 eine längs zur Schiene 11 verlaufende Kammer 54 vorgesehen ist, in der in Längsabstand voneinander Vorspanneinrichtungen 51 in U-förmig gebogener Blattfedern 55 angeordnet sind, die von einem Spanner oder Auslöser 56 in gespanntem Zustand (Fig. 9) gehalten werden, indem dieser Abbiegungen 57 an den Enden der Federschenkel 58 hintergreift. Der umgekehrt T-förmige Auslöser wird nach dem Einbau durch einen Druck oder Schlag auf die Oberseite 33 des Fugenfüllelementes 27 nach unten gedrückt und gibt die Federschenkel 58 frei, so dass diese den mittleren Bereich des Fugenfüllelementes 27 strecken und insgesamt eine Druckvorspannung in diesem aufbauen, hier vor allem im oberen Bereich. Figures 9 and 10 show an embodiment of the pretensioning device 51, in which a chamber 54 is provided in the joint filling element 27, which extends along the rail 11 and in which pretensioning devices 51 are arranged in U-shaped bent leaf springs 55 at a longitudinal distance from one another, which are tensioned by a tensioner or trigger 56 State ( Fig. 9 ) by engaging behind the bends 57 at the ends of the spring legs 58. The inverted T-shaped trigger will after installation by a pressure or blow on the top side 33 of the joint filling element 27 pressed down and releases the spring legs 58 so that they stretch the middle area of the joint filling element 27 and build up a total pressure bias in this, especially in the upper area.

Fig. 11 und 12 demonstrieren eine Ausführung der Vorspanneinrichtung 51, bei der in einer mittig im Fugenfüllelement 27 vorgesehenen Kammer 54 durch eine zerstörbare Wandung 59 getrennte Komponenten 47, 48 vorgesehen sind. So kann in der Kammer, die eine der Komponenten enthält, z.B. eine Kapsel oder Ampulle mit einer zweiten Komponente sein, die mit der anderen eine chemische oder physikalische Reaktion eingeht, die zu einer Volumenvergrößerung führt und eine Dehnung zum Aufbau einer Druckvorspannung ausführt (Fig. 12). Die Komponenten können zum Beispiel einen flexibel aushärtenden Kunststoffschaum bilden, der die Kammer dauerhaft, aber flexibel vergrößert. Es gibt aber auch anorganische Materialien, die von einer zweiten Komponente zu einer irreversiblen Ausdehnung gebracht werden können, zum Beispiel verschiedene Ton-Materialien oder Gips bei Wasserzugabe. Es kann aber unter Umständen auch auf eine zweite Komponente verzichtet werden, wenn es sich bei dem auslösenden Reagenz um Wasser handelt. In diesem Falle könnte die Reaktion auch durch eindiffundierende Feuchtigkeit ausgelöst werden. Es entstünde dann eine Dehnung "mit Zeitzünder". Die Figuren zeigen, dass in diesem Fall das Fugenfüllelement mit einer mittleren Einschnürung hergestellt ist, also jeweils konkaver Ober- und/oder Unterseite, um nach der Ausdehnung ebene Flächen zu erhalten. Figures 11 and 12 demonstrate an embodiment of the pretensioning device 51, in which components 47, 48 are provided in a chamber 54 provided centrally in the joint filling element 27 by a destructible wall 59. In the chamber that contains one of the components, for example, there can be a capsule or ampoule with a second component that enters into a chemical or physical reaction with the other, which leads to an increase in volume and an expansion to build up a compressive tension ( Fig. 12 ). The components can, for example, form a flexible, hardening plastic foam that permanently but flexibly enlarges the chamber. But there are also inorganic materials that can be irreversibly expanded by a second component, for example various clay materials or gypsum when water is added. Under certain circumstances, however, a second component can also be dispensed with if the triggering reagent is water. In this case, the reaction could also be triggered by diffusing moisture. An expansion "with a time fuse" would then arise. The figures show that in this case the joint filling element is produced with a central constriction, that is to say in each case a concave upper and / or lower side, in order to obtain flat surfaces after the expansion.

Es ist doch möglich, auf eine zweite Komponente zu verzichten, wenn das in die Kammer eingebrachte Material zum Beispiel bei einer erhöhten Temperatur reaktionsfähig ist. Diese könnte von außen entweder durch Kontaktwärme (Prinzip: Bügeleisen) oder durch thermische oder elektrische Strahlung (Mikrowelle) erzeugt werden.It is still possible to dispense with a second component if the material introduced into the chamber is reactive, for example at an elevated temperature. This could be generated from the outside either by contact heat (principle: iron) or by thermal or electrical radiation (microwave).

Die gewünschte Druckvorspannung kann auch durch die Verwendung eines Materials für das Fugenfüllelement 27 erzielt werden, das unter Aufnahme von Feuchtigkeit selbst quillt. Dieses Material ist als Quell-Dichtung bekannt. Es ist ein 1-komponentiges, lösungsmittelfreies und wasserquellfähiges flexibles Kunststoffmaterial auf der Basis von Polyurethan. Besonders vorteilhaft ist, dass es ein hervorragendes Haftverhalten auf unterschiedlichstem Untergrund hat. Hier müsste lediglich dafür gesorgt werden, dass das Fugenfüllelement 27 zwischen der Herstellung und dem Einsatz gegen Wasser abgeschirmt wird, was allerdings bei einer Herstellung und Lagerung in einem Betrieb kein Problem ist. Notfalls könnte eine abreißbare Abdeckung vorgesehen werden.The desired compressive prestress can also be achieved by using a material for the joint filling element 27 which itself swells when absorbing moisture. This material is known as a swell seal. It is a 1-component, solvent-free and water-swellable flexible plastic material based on polyurethane. It is particularly advantageous that it has excellent adhesion properties on a wide variety of substrates. Here, it would only have to be ensured that the joint filling element 27 is shielded from water between production and use, which, however, is not a problem during production and storage in a company. If necessary, a tear-off cover could be provided.

Fig. 13 und 14 zeigen eine Ausführung der Vorspanneinrichtung 51, die eine Kammer 54 aufweist, in der, ggf. in einem in der Kammer 54 liegenden Schlauch 60, ein Unterdruck nach der Herstellung des Fugenfüllelementes 27 erzeugt wird, womit eine Zusammenziehung des Schlauches, der Kammer und des mittleren Teils des Fugenfüllelementes einhergeht. Nach der Anbringung des Umbaus 31 kann dann der Schlauch 60 an einem Ende des langgestreckten Fugenfüllelementes angestochen werden und damit den Schlauch und auch die Kammer vergrößern. Figures 13 and 14 show an embodiment of the pretensioning device 51, which has a chamber 54 in which, possibly in a hose 60 located in the chamber 54, a negative pressure is generated after the production of the joint filling element 27, which causes the hose, the chamber and the central one to contract Part of the joint filling element is associated. After the conversion 31 has been attached, the hose 60 can then be pierced at one end of the elongated joint filling element and thus enlarge the hose and also the chamber.

Schließlich zeigen Fig. 15 und 16 eine Ausführung der Vorspanneinrichtung 51, bei der nach der Herstellung des Fugenfüllelementes dieses unter seitlichen Druck gesetzt wird, der durch ein inneres Spannelement 61 aufrechterhalten wird, z.B. durch eine Vernähung zwischen Innen- und Außenseite 35,36 des Füllelementes 27. Dies kann mit einem Faden 62 erfolgen, der leicht schmelzend ist, so dass ihn eine Erwärmung zum Reißen bringt (Fig. 16) und er die im Fugenfüllelement 27 gespeicherte Druckspannung freigibt.Finally show Figures 15 and 16 an embodiment of the pretensioning device 51, in which after the production of the joint filling element this is placed under lateral pressure, which is maintained by an inner tensioning element 61, for example by sewing between the inside and outside 35,36 of the filling element 27. This can be done with a thread 62, which melts easily, so that heating causes it to crack ( Fig. 16 ) and it releases the compressive stress stored in the joint filling element 27.

BezugszeichenlisteList of reference symbols

GleisbettTrack bed 1111 RillenschieneGrooved rail 1212th SchienenkopfRail head 1313th LaufflächeTread 1414th SpurkanalTrack channel 1515th SpurkanalseiteLane channel side 1616 SchienenstegRail web 1717th SchienenfußRail foot 1818th FußprofilFoot profile 1919th SchienenkammerRail chamber 2020th KammerfüllelementChamber filling element 2121 Unterseitebottom 2222nd SchienenkopfseiteRail head side 2323 horizontale Flächehorizontal plane 2424 BasisplatteBase plate 2525th GleisbettgründungTrack bed foundation 2626th FugenfüllelementeJoint filling elements 2727 KleberschichtAdhesive layer 2828 UmbauoberflächeRemodeling surface 3030th Umbaumodification 3131 OberseiteTop 3333 Unterseitebottom 3434 Innenseiteinside 3535 AußenseiteOutside 3636 EinwärtsrundungInward rounding 3737 Beton-Umbau-UnterschichtConcrete conversion sub-layer 3838 AsphaltschichtAsphalt layer 3939 KleberschichtAdhesive layer 4040 Vliesfleece 4141 Fasechamfer 4343 Gewebetissue 4545 TrennmittelRelease agent 4646 FugeGap 5050 VorspanneinrichtungPretensioning device 5151 KnickelementBuckling element 5353 Kammerchamber 5454 BlattfederLeaf spring 5555 Auslösertrigger 5656 AbbiegungenTurns 5757 FederschenkelSpring legs 5858 WandungWall 5959 Schlauchhose 6060 SpannelementClamping element 6161 Fadenthread 6262

Claims (14)

  1. A rail (12) to be mounted elastically with a joint-filling element (27), said rail having a rail head (13) with a running surface for vehicle wheels, a rail foot (15), and a rail web (16) connecting the rail head and foot, in particular a grooved rail, which is intended to be enclosed at least on one side by an optionally multi-layered surround (31), which forms an embedment of the rail and the surface (30) of which is in the height region of the running surface (14), there being a joint (50), which is to be filled with the joint-filling element (27), between the embedment and a side face (23) of the rail head (13), the joint-filling element (27) being prefabricated and consisting of an elastic material and being formed with an inner side (35) facing the rail head (13), an outer side (36) facing away from the rail head (13), an upper side (33) and a lower side (34), the inner side being permanently adhesively attached to the side face (23) of the rail head (13) before the rail (12) is laid, the outer side (36) being designed to promote adhesion to the surround (31), and the lower side (34) being designed to inhibit adhesion,
    characterised in that
    adhesion-promoting elements are embedded in the material of the joint-filling element (27) and have a nonwoven (41) which is embedded on the inner side (35) in an adhesive layer (28) to the side face (23) of the rail head (13).
  2. The rail according to Claim 1,
    characterised in that
    the outer side (36) of the joint-filling element (27) has a structure which forms an at least partially interlocking connection together with the surround (31) .
  3. The rail according to any one of the preceding claims, characterised in that
    the adhesion-promoting property of the outer side (36) is provided at least additionally by an adhesive layer (28) .
  4. The rail according to Claim 1 or 2,
    characterised in that
    the adhesion-promoting elements have
    a nonwoven (41), the fibres of which protrude from the outer side (36) and to be adhesively received in the material of the surround (31), or
    a woven fabric (45) which protrudes from the outer side (36) to be adhesively received in the material of the surround (31), or
    fibres which protrude from the outer side (36) to be adhesively received in the material of the surround (31) .
  5. The rail according to any one of the preceding claims, characterised in that
    the joint-filling element (27) forms an elastic compressive and tensile connection between the side face (23) of the rail head (13) and the surround (31).
  6. The rail according to any one of the preceding claims, characterised in that
    the lower side (34) of the joint-filling element (27) is designed for adhesion-inhibiting connection, by means of a separating agent (46), to a chamber-filling element (21) to be inserted into a rail chamber (20) formed between the rail head (13), rail web (17) and rail foot (18).
  7. The rail according to any one of the preceding claims, characterised in that
    the joint-filling element (27) is provided with a preloading device (51), which can be triggered after the attachment of the surround (31) and applies a compressive preloading between the surround (31) and the rail head side (23) .
  8. The rail according to Claim 7,
    characterised in that
    the triggerable preloading device (51) has one of the following features:
    the joint-filling element (27) has at least one bending element (23), which is provided with a deflection oriented transversely to the preloading direction and
    is to be brought into an extended form by action on the joint-filling element (27), or
    a preloaded spring (55), in particular a bent leaf spring, is introduced into the joint-filling element (27) and is held under loading by a trigger (56) until the trigger is actuated by external action on the joint-filling element (27) to release the spring loading, or
    the joint-filling element (27) contains a chamber (54) which is filled with a material which expands irreversibly when heat is applied.
  9. The rail according to Claim 6 or 7,
    characterised in that
    the triggerable preloading device (51) has one of the following features:
    the joint-filling element (27) contains a chamber (54) which contains two components which are initially separate from each other and are brought into contact with each other by expansion as a result of mechanical action, or
    the joint-filling element (27) contains an inclusion of a material which increases its volume as a result of diffusion of moisture into the joint-filling element, or
    the joint-filling element (27) contains a chamber (54, 60) which is at a negative atmospheric pressure and expands after creation of an air access.
  10. The rail according to any one of Claims 6 to 9, characterised in that
    the triggerable preloading device (51) has one of the following features:
    the joint-filling element (27) is placed under compressive loading, which is blocked by an external loading element (61) which is to be removed, or
    the joint-filling element is placed under compressive loading, which is blocked by an internal loading element (61, 62) which can be destroyed by the action of heat.
  11. A method for the elastic laying of a rail (12) with a joint-filling element (27) in a track bed (11), said rail having a rail head (13) with a running surface for the vehicle wheels, a rail foot (18), and a rail web (17) connecting the rail head and foot, in particular a grooved rail, the joint-filling element (27) being prefabricated and consisting of an elastic material, and being formed with an inner side (35) facing the rail head (13), an outer side (36) facing away from the rail head (13), an upper side (33) and a lower side (34), said method having the following steps:
    elastically attaching the rail (12) to a base (26), said rail being provided with the joint-filling element (27), which is attached adhesively at least to one side of the rail head (13) before laying,
    casting the surround (31) to the outer side (36) of the joint-filling element (27), creating an adhesive connection therebetween,
    characterised in that
    adhesion-promoting elements are embedded in the material of the joint-filling element (27) and have a nonwoven (41) which is embedded on the inner side in an adhesive layer (28) to the side face (23) of the rail head (13).
  12. The method according to Claim 11,
    characterised in that
    the adhesive connection comprises an inclusion of elements which protrude from the outer side of the joint-filling element (27) into the surround (31).
  13. The method according to Claim 11 or 12, characterised in that
    after the attachment of the surround (31) to the rail, a preloading device (51) provided for the joint-filling element (27) is triggered by action on the joint-filling element (27) to form a compressive preloading in the joint-filling element (27) between the rail head side (23) and the surround (31).
  14. The method according to Claim 13,
    characterised in that
    the action on the joint-filling element (27) comprises one of the following steps:
    mechanical action on the upper side (33) of the joint-filling element (27) by pressure or impact, or
    heat action on the joint-filling element (27), or
    creation of a connection of a chamber (54, 60) situated inside the joint-filling element (27) to the atmosphere, or
    removal of a device blocking a preloading of the joint-filling element (27), or
    exposure of the surface of the joint-filling element (27) to moisture.
EP19168409.1A 2018-04-18 2019-04-10 Rail to be mounted elastically Active EP3556938B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL19168409T PL3556938T3 (en) 2018-04-18 2019-04-10 Rail to be mounted elastically

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018109255.5A DE102018109255A1 (en) 2018-04-18 2018-04-18 Elastic rail to be stored

Publications (2)

Publication Number Publication Date
EP3556938A1 EP3556938A1 (en) 2019-10-23
EP3556938B1 true EP3556938B1 (en) 2021-10-13

Family

ID=66105055

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19168409.1A Active EP3556938B1 (en) 2018-04-18 2019-04-10 Rail to be mounted elastically

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Country Link
EP (1) EP3556938B1 (en)
DE (1) DE102018109255A1 (en)
DK (1) DK3556938T3 (en)
ES (1) ES2902939T3 (en)
PL (1) PL3556938T3 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2911154A1 (en) * 2007-01-05 2008-07-11 Lohr Ind Guiding/runway rail for guiding urban road transport vehicle, has trimming material for forming cover and covering rail, where rail does not present high lateral inertia for being bent to install on site
WO2018010740A1 (en) * 2016-07-12 2018-01-18 Dätwyler Sealing Technologies Deutschland Gmbh Damping arrangement for tracks

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19939838A1 (en) 1999-08-21 2001-02-22 Freiburger Verkehrs Ag Damping profile for rails, in particular, grooved rails only partially fills the rail chambers, and comprises an elastically compliant top section which is pressed against the underside of the rail head
DE10064254A1 (en) * 2000-12-22 2002-07-04 Knape Vermoegensverwaltungs Gm railway construction
AT411694B (en) 2002-01-24 2004-04-26 Getzner Werkstoffe Holding Gmbh DEVICE FOR THE ELASTIC STORAGE OF A RILLED RAIL
NL1021990C2 (en) 2002-11-25 2004-05-26 Edilon Bv Rail construction with cladding structure.
DE102007006544A1 (en) * 2007-02-09 2008-08-14 Gummiwerk Kraiburg Elastik Gmbh Rail covering system for a rail, in particular tram rail
DE102007035052A1 (en) 2007-07-26 2009-01-29 Hermann Ortwein Grooved rail provided with an electrical insulation
US9617688B2 (en) 2014-06-26 2017-04-11 Polycorp Ltd. Rail assembly
DE102016114172A1 (en) 2016-08-01 2018-02-01 Edilon Sedra Gmbh Rail with electrical insulation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2911154A1 (en) * 2007-01-05 2008-07-11 Lohr Ind Guiding/runway rail for guiding urban road transport vehicle, has trimming material for forming cover and covering rail, where rail does not present high lateral inertia for being bent to install on site
WO2018010740A1 (en) * 2016-07-12 2018-01-18 Dätwyler Sealing Technologies Deutschland Gmbh Damping arrangement for tracks

Also Published As

Publication number Publication date
EP3556938A1 (en) 2019-10-23
DK3556938T3 (en) 2022-01-10
PL3556938T3 (en) 2022-02-14
DE102018109255A1 (en) 2019-10-24
ES2902939T3 (en) 2022-03-30

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