EP2946036A1 - Bahnschwelle - Google Patents
BahnschwelleInfo
- Publication number
- EP2946036A1 EP2946036A1 EP13831816.7A EP13831816A EP2946036A1 EP 2946036 A1 EP2946036 A1 EP 2946036A1 EP 13831816 A EP13831816 A EP 13831816A EP 2946036 A1 EP2946036 A1 EP 2946036A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fibers
- concrete body
- concrete
- sole
- schwellensohle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
- E01B1/005—Ballastless track, e.g. concrete slab trackway, or with asphalt layers with sleeper shoes
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/46—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from different materials
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C19/00—Apparatus specially adapted for applying particulate materials to surfaces
- B05C19/001—Flocking
- B05C19/002—Electrostatic flocking
Definitions
- the invention relates to a railway sleeper, which has a concrete body with a sill sole attached to this, wherein for shear strength connection of the sill with the concrete body fibers are on the one hand connected to the sill and on the other hand with the concrete body and in this case are partially embedded in the concrete of the concrete body , Furthermore, the invention relates to a method for shear strength connection of a Schwellensohle with a concrete body of a railway sleeper by means of fibers, which are connected on the one hand with the Schwellensohle and on the other hand with the concrete body and thereby partially embedded in the concrete of the concrete body.
- Sleeper sleepers for railway sleepers are used in particular for
- Vibration protection and gravel bedding used in concrete sleepers are effective
- EP 1 298 252 A2 discloses a railway sleeper in which the sleeper sole is connected to the concrete body of the railway sleeper by means of a connecting layer which is formed by a random fiber layer, in particular a nonwoven layer. Fibers of the random fiber layer are embedded on the one hand in the concrete of the concrete body in its near-surface lower side region and on the other hand in the
- Fiber layer arranged, which is integrated in both the concrete and in the plastic layer of the sole. Due to the partially embedded in the concrete three-dimensional structure of these prior art connection layers, the permanent, tear-resistant and shear-resistant connection between the concrete body of the railway sleeper and the threshold sole is improved.
- the previously known bonding layers formed by random fiber layers, in particular needled nonwoven layers or random webs have drawbacks in various respects.
- cement slurry cement sludge
- Such a layer can transmit only relatively small forces, which is why the forces between the connecting layer and the concrete body are subsequently limited.
- Appearances are holes, lumpy fiber clusters, variations in thickness, etc. The reached over the connection layer
- Curvature of the composite of the Schwellensohle come with the connection layer. As a result, the handling is difficult and an impairment of the connection with the concrete body of the railway sleeper can be the result.
- the fibers are connected to each other and are not part of a connected textile fabric.
- the fibers are only indirectly interconnected, namely via the threshold sole or an adhesive layer applied thereto, via which the fibers are connected to the sill sole.
- Concrete embedded in the concrete body are advantageously at least substantially perpendicular to the surface of the threshold sole.
- Substantially rectangular is intended to mean that more than 90%, preferably more than 95%, of the fibers make an angle in the range of 90 ° +/- 15 ° with the surface of the fibers
- the fibers are thus individually connected to the sill, the connection being made by connecting their ends with an adhesive layer applied to the material forming the sill, or directly with the material of the sill.
- a connection being made by connecting their ends with an adhesive layer applied to the material forming the sill, or directly with the material of the sill.
- Adhesive layer applied to the already finished body of the threshold sole, so in particular after the plastic material of the threshold sole is already cured, and as a result the Befiockung with the fibers
- the Befikockung is carried out with the fibers before the plastic of the Schwellensohle is cured.
- the flock fibers are thus fed with their ends to the reaction mixture, which after the
- Curing forms the Schwellensohle.
- the penetration depth of the fibers into the adhesive layer or into the material of the threshold sole is favorably in the range of 0.1 mm to 0.5 mm, preferably in the range of 0.2 mm to 0.3 mm.
- the length of the flock fibers is advantageously in the range of 0.5 mm to 10 mm, preferably in the range of 2 mm to 5 mm. It is possible that the flock fibers are all substantially the same length. Substantially the same length shall mean here that the deviations of the individual fibers from the average fiber length are less than 10%.
- a modified training provides flock fibers with different lengths.
- the at least substantially equal orientation of the flock fibers to the surface of the sill ie, at least 90%, preferably at least 95%, of the fibers are in an angular range of +/- 15 ° to a predetermined orientation which is particularly perpendicular to the surface of the sill) be achieved by an electrostatic field, as is common in flocking.
- Sole or the applied to the sill sole adhesive layer may optionally be provided.
- Electrostatic flocking is conventionally used for various surfaces, in particular for optical and / or haptic reasons. Also for noise reduction, for surface protection and to change the
- FIG. 1 shows a schematic representation of a railway sleeper according to the invention
- Figures 2 to 4 are schematic side views of the threshold sole before flocking, after the application of the adhesive layer and after flocking with the fibers.
- Fig. 5 is a schematic representation of a device for flocking the
- Fig. 1 shows a schematic representation of a railway sleeper 1 in the form of a
- Concrete sleeper comprising a concrete body 2 and attached to the underside of the soleplate 3. With the sleeper sole 3, the railway sleeper 1 rests on a gravel bed 4 indicated in FIG.
- the railway sleepers 1 laid at a distance from each other in the ballast bed carry a track, of which a rail 5 is shown in FIG.
- the attachment of the rail 5 to the railway sleeper 1 is not shown here.
- a layer of an elastic material can be arranged between the rail 5 and the railway sleeper 1.
- the concrete body 2 is made of reinforced concrete. This may be a "late scraper” where de-scaling takes place when the concrete has hardened or an “early scraper” which can already be disengaged before the concrete hardens.
- the concrete body 2 as
- the Schwellensohle 3 consists of an elastic plastic. Preference is given to a formation of foamed polyurethane. Trainings from others,
- foamed, elastomers or thermoplastic elastomers are conceivable and possible.
- the sill sole 3 preferably covers only the underside of the concrete body 2.
- the bond between the concrete body 2 and the threshold sole 3 is advantageously already at the factory, so that no work on the site in this regard are required.
- the thickness of the threshold sole 3 is preferably in the range of 4mm to 20mm.
- fibers 6 are present, which protrude into the concrete of the concrete body 2, so are embedded over part of their length in the concrete of the concrete body.
- This length is preferably more than 50% of the total length of the fibers 6, more preferably more than two-thirds of the total length of the fibers 6. Over their remaining length, the fibers 6 are applied to the sill bottom 3
- the embedding of the fibers 6 in the concrete body 2 takes place during the production of the concrete body 2, before the concrete of the concrete body 2 has hardened. At the
- Curing the concrete is a frictional connection of the fibers 6 with the concrete body 2.
- the fibers 6 are embedded in the concrete of the concrete body 2 before it has hardened, the fibers 6 are already connected to the sill 3.
- the sill 3 with its associated fibers 6 facing towards the concrete of the concrete body 2 is placed in the mold on the cast concrete body 2 and preferably shaken into the concrete of the concrete body 2.
- the Schwellensohle 3 could be inserted with the zuzugelloenden concrete facing fibers 6 even before pouring the threshold in the mold cavity or applied to this, so that the
- the fibers 6 are flock fibers of a flock, with which the threshold sole 3 is provided.
- Figs. 2 to 4 Various stages of the formation of the Schwellensohle 3 with the flocking with the fibers 6 are shown schematically in Figs. 2 to 4.
- the base body of the sill sole is formed in a conventional manner
- an adhesive layer 9 is applied to the surface 10 of the base body of the threshold sole 3, which faces the concrete body 2 in the finished state of the railway sleeper 1, cf. Fig. 3 (the thickness of the adhesive layer 9 is exaggerated in the schematic figures).
- the fibers 6 are connected with the aid of an electrostatic field with the not yet cured adhesive of the adhesive layer 9, cf.
- the fibers 6 are aligned at least substantially the same, preferably at right angles to the surface 10 of the threshold sole 3.
- the fibers are shown on the surface of the adhesive layer 9 ending. In fact, the ends of the fibers 6 protrude slightly into the
- Adhesive layer 9 in, ie the fibers 6 are over part of their length in the Adhesive layer 9 embedded, for example about 0.2mm to 0.3mm.
- the thickness of the adhesive layer 9 is greater than the length of the embedding of the fibers 6.
- the thickness of the Schwellensohle 3 is substantially greater than the thickness of the
- Adhesive layer 9 preferably at least five times larger.
- the application of the adhesive layer 9 and the flocking with the fibers 6 can be carried out, for example, in a continuous process, as shown schematically in FIG. 5.
- the Schwellensohle 3 is placed on a in the feed direction 1 1 moving belt 1 2.
- the adhesive layer 9 is applied to the surface 10 of the Schwellensohle 3.
- the fibers 6 are first received in a metering 14. to
- metering roller metering brush
- the fibers 6 are guided past an electrode 17.
- the counterelectrode can be formed, for example, by the band 12.
- Fig. 5 schematically shows a grounding of the belt 12 is shown.
- the electrostatic field formed between the electrode 17 and the counter electrode the fibers 6 are aligned. This field can also serve to accelerate the fibers towards the adhesive layer 9.
- the gravitational force causes an acceleration of the fibers 6 in the direction of
- Adhesive layer 9 The fibers impinging on the adhesive layer 9 are injected into them with their ends facing the threshold sole 3.
- the adhesive layer 9 could also be done in other ways, for example by spraying or printing.
- the adhesive layer 9 could also be omitted and the fibers 6 be embedded with their ends directly in the elastic plastic, of which the Schwellensohle 3 consists.
- the fibers 6 are injected into the reaction medium forming the swelling sole, which is not yet cured at the time of flocking, at least not fully cured.
- the flocking of the threshold sole 3 would take place simultaneously with the formation of the threshold sole.
- a layer of the not yet fully cured reaction mixture, which forms the threshold sole 3 after curing forms in this case an adhesive layer into which the fibers 6 are embedded.
- the fibers 6 are made of polyamide.
- fibers 6 made of polyester, viscose, glass fibers, cotton, etc. can be used.
- the adhesive layer 9 could be formed, for example, from a two-component polyurethane (2K-PUR) adhesive or from an epoxy resin.
- 2K-PUR polyurethane
- PUR polyurethane sill sole
- another elastomer e.g. Natural rubber, conceivable and possible.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL13831816T PL2946036T3 (pl) | 2013-01-17 | 2013-12-23 | Podkład kolejowy |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA32/2013A AT513946B1 (de) | 2013-01-17 | 2013-01-17 | Bahnschwelle |
PCT/AT2013/000215 WO2014110608A1 (de) | 2013-01-17 | 2013-12-23 | Bahnschwelle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2946036A1 true EP2946036A1 (de) | 2015-11-25 |
EP2946036B1 EP2946036B1 (de) | 2017-02-08 |
Family
ID=50151049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13831816.7A Active EP2946036B1 (de) | 2013-01-17 | 2013-12-23 | Bahnschwelle |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2946036B1 (de) |
AT (1) | AT513946B1 (de) |
DK (1) | DK2946036T3 (de) |
PL (1) | PL2946036T3 (de) |
WO (1) | WO2014110608A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12089761B2 (en) | 2018-02-14 | 2024-09-17 | Getzner Werkstoffe Holding Gmbh | Under sleeper pad |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022134100A1 (de) | 2022-12-20 | 2024-06-20 | Het Elastomertechnik Gmbh | Verfahren zur Herstellung von Schwellensohlen für ein Bahngleis mit Schotterbettung |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1581654A (de) | 1968-07-09 | 1969-09-19 | ||
CH613253A5 (en) * | 1974-01-09 | 1979-09-14 | Ruhrkohle Ag | Sealing course for spaces to be protected against the ingress of water, in particular underground spaces |
DE3520305A1 (de) * | 1985-06-07 | 1986-12-11 | Werner 7201 Neuhausen Lohrer | Beton-verlegeelement |
DE4315215A1 (de) | 1992-05-09 | 1993-11-11 | Phoenix Ag | Schienenanordnung |
DE4302299A1 (de) | 1993-01-28 | 1994-08-04 | Saar Gummiwerk Gmbh | Elastische Schotterbettunterlage |
FR2753998B1 (fr) | 1996-09-30 | 1998-12-18 | Etancheite Les Revetements Et | Semelle sous traverse pour protection du ballast |
PT1298252E (pt) | 2001-10-01 | 2006-10-31 | Rst Rail Systems And Technolog | Travessa com revestimento inferior |
DE10304768B3 (de) | 2003-02-05 | 2004-08-05 | Rst-Rail Systems And Technologies Gmbh | Bahnschwelle mit unterseitiger Beschichtung und Abrissprüfung bei einer derartigen Bahnschwelle |
AT506529B1 (de) | 2008-03-06 | 2010-05-15 | Getzner Werkstoffe Holding Gmbh | Schwellensohle |
EP2128339A1 (de) * | 2008-05-27 | 2009-12-02 | Intron Samen Meer B.v. | Faserbeschichtetes Baumaterial |
US20130059144A1 (en) * | 2010-03-12 | 2013-03-07 | Hermann Gärlich | Concrete sleeper and method for the production thereof |
-
2013
- 2013-01-17 AT ATA32/2013A patent/AT513946B1/de active
- 2013-12-23 WO PCT/AT2013/000215 patent/WO2014110608A1/de active Application Filing
- 2013-12-23 PL PL13831816T patent/PL2946036T3/pl unknown
- 2013-12-23 EP EP13831816.7A patent/EP2946036B1/de active Active
- 2013-12-23 DK DK13831816.7T patent/DK2946036T3/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12089761B2 (en) | 2018-02-14 | 2024-09-17 | Getzner Werkstoffe Holding Gmbh | Under sleeper pad |
Also Published As
Publication number | Publication date |
---|---|
PL2946036T3 (pl) | 2017-08-31 |
DK2946036T3 (en) | 2017-05-01 |
AT513946A1 (de) | 2014-08-15 |
WO2014110608A1 (de) | 2014-07-24 |
EP2946036B1 (de) | 2017-02-08 |
AT513946B1 (de) | 2014-12-15 |
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