EP3597823B1 - Device for securing a sleeper - Google Patents
Device for securing a sleeper Download PDFInfo
- Publication number
- EP3597823B1 EP3597823B1 EP17904915.0A EP17904915A EP3597823B1 EP 3597823 B1 EP3597823 B1 EP 3597823B1 EP 17904915 A EP17904915 A EP 17904915A EP 3597823 B1 EP3597823 B1 EP 3597823B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sleeper body
- plate
- sleeper
- inter
- elastic
- 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.)
- Active
Links
- 241001669679 Eleotris Species 0.000 title claims description 98
- 238000009434 installation Methods 0.000 claims description 28
- 230000014759 maintenance of location Effects 0.000 claims description 15
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 230000000284 resting effect Effects 0.000 claims description 3
- 239000004567 concrete Substances 0.000 description 14
- 239000010426 asphalt Substances 0.000 description 4
- 230000003100 immobilizing effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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
- E01B1/007—Ballastless track, e.g. concrete slab trackway, or with asphalt layers with interlocking means to withstand horizontal forces
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
- E01B3/40—Slabs; Blocks; Pot sleepers; Fastening tie-rods to them
Definitions
- the present invention refers to a device that fixes a sleeper body, which is used to seat the tracks of a railway on it, for ballastless track.
- Railway sleepers are transverse or longitudinal components comprising the means of retaining the track rails on the body of a reinforced concrete sleeper.
- Concrete slab tracks are subjected to increased mechanical stress due to the increasing pressure of the vehicle axles and their speeds, which have tended to increase in recent times.
- the service life of the deformable body must be increased by preventing concrete sleepers from sliding sideways on the concrete base plate if an excessively flexible inter-plate is located under the sleeper.
- ES2066748T1 discloses a dowel-like device for retaining a sleeper over a supporting layer in a manner incapable of horizontal displacement between sleeper and supporting layer.
- the dowel-like device passes through the joint between the sleeper and the supporting layer and at the top fixes into the sleeper and at the bottom into the supporting layer, at least one of the two associated fixing-in arrangements permitting a vertical movement between the dowel-like device and the structural member into which it fixes respectively, and both fixing-in arrangements, in cooperation, retaining the sleeper resiliently on the supporting layer at least in respect of loads acting on the longitudinal axis of the sleeper.
- EP1039029A1 disclosed a concrete bearing layer and rails mounted on sleepers which are fastened to the concrete layer by bolts which are inserted into bores in the sleeper.
- the bolts are held in the concrete layer in such a way that they can be unscrewed.
- the bolts have a threaded section at the end which forms a bore in the anchoring material filling the hole in the concrete layer.
- EP1380687A1 discloses a railway sleeper for a solid permanent way has a recess to take an inserted dowel stone which projects from the sleeper base into the cut opening in the geo-textile and fine asphalt layers over the permanent way.
- the sleeper and the dowel stone have aligned vertical openings to take the inserted filling material.
- the cylindrical dowel stone is held in the recess by a layer insert.
- a threaded pipe is through the filling opening and embedded in the concrete.
- a filling pipe is screwed to the threaded section with a limit stop against the sleeper.
- DE4428706A1 discloses a clamp screws are fastened to the sole plate via dowel connections. There is one clamp screw for each sleeper, located in its longitudinal centre. The screw passes through a vertical passage aperture in the sleeper. The aperture serves as template to form a dowel bore in the sole plate. In the area of the clamp screw, the sleeper engages on the sole plate enclosing a hollow space. A helical compression spring is located between clamp screw and sleeper.
- EP0709522A1 discloses a concrete base to which a supporting layer of asphalt is applied.
- Monobloc sleepers each with a central recess in the underside, bear against the asphalt on both sides of it.
- Each sleeper contains a central drilling, via which after laying a blind hole is drilled, extending into the base.
- Adhesive is delivered into the hole, after which a bolt or other fixing device is driven into the drilling and hole. This can move in the axial direction in the drilling and bears against its wall.
- the adhesive used can have two ingredients contained in a cartridge inserted in the blind hole.
- DE19514005A1 discloses a concrete sleeper is fastened to a concrete or asphalt bed plate by an arrangement of a through holer in the sleeper in alignment with a blind hole in the bed plate and a plastic sleeve in the sleeper hole.
- a steel bolt is passed through the sleeve into the blind hole and a layer of curable material is placed in the blind hole, between the steel bolt and the bed plate.
- the curable material may be a grout, or an epoxy resin and the sleeve may be retained in place by epoxy resin adhesive.
- the present invention aims to resolve one or more of the drawbacks outlined above by means of a fixing device for the sleeper body as defined in the claims.
- the bolt is firmly locked and prevented from moving into the corresponding blind hole.
- the fixing device includes a guiding rod for positioning the sleeper body on the base plate in the slab track installation position; and an immobilizing end that works mechanically with the anchor bolt to fix the sleeper body in the slab track installation position.
- the rod and end of the fixing device pass through the inter-plate.
- the fixing device also includes a head included in the through hole without protruding from the upper plane of the sleeper body in the slab track installation position.
- the guiding rod can be inserted into a sleeve that internally lines the through hole in the slab track position.
- the immobilizing end is threadable into an internal thread of the anchor bolt such as a locking nut, in the installation position of the slab track.
- the inside diameter of the through hole sleeve is larger than the diameter of the fixing device stem, which allows the through hole to be aligned with the anchor bolt to ensure the fixing device force is centred on the anchor bolt. In this way, the fixing device is only applied in the direction of traction and twisting of the fixing device is avoided.
- the head of the fixing device has a diameter that is substantially equal to the diameter of the sleeve of the through hole, so that the head is locked and immobilized to make small lateral displacements according to a diameter of the head inside the sleeve of the through hole but allows limited vertical displacements of the sleeve with respect to the head and stem of the fixing device in the installation position of the slab track.
- the sleeper body comprises at least two through holes arranged close to each free outer side, i.e., the sleeper bodies are arranged in a row one after another on the inter-plate.
- Through holes can be arranged in an inclined axis with respect to an axis parallel to an edge of a free outer side of the sleeper body; for example, the inclined axis cuts two non-contiguous vertices of the sleeper body obliquely.
- the sleeper body consists of at least two rail track retention devices designed to retain the rails on the reinforced concrete sleeper body.
- the means of retention are embedded in the corresponding recesses of the sleeper body from the upper plane to the lower plane of the sleeper body.
- the rail retention media are also aligned in a row.
- the inter-plate is made of elastic material such as an elastomer, being arranged between the sleeper body and the base plate in a layered or sandwich configuration, so that when the sleeper body exerts an original pre-tension, a function of the weight of the sleeper body, and the fixing arrangement, by fixing the sleeper body to the base plate in the installation position of the slab track, it does not increase the original pre-tension of the sleeper body. That is to say, the sleeper body exerts an additional pressure to the original pretension when a train carriage passes over it.
- elastic material such as an elastomer
- the sleeper body describes a sliding vertical movement, limited elastic travel, from a resting position, corresponding to the installation position of the slab track, to a working position, relative to the passage of a train carriage on the rail tracks, and vice versa. That is to say, the time that the sleeper body is in working position is a function of the frequency of passing trains on the railway.
- the fixing device provides an elastic, resistant and economic fastening or retention to the sleeper body, which requires a reduced number of pieces and whose assembly is simple and precise with no specialization.
- the fixing arrangement provides an elastic retention whose elasticity is due both to the nature of the inter-plate and to the sliding retention system of the sleeper body in the slab track installation position.
- the sleeper body is firmly retained, and, at the same time, the retention is elastic.
- the slab track comprises at least one portion of base plate, one inter-plate and at least one sleeper body installed in a configuration of overlapping layers fixed in the slab track installation position by means of the fixing device.
- the slab track comprises non-moving parts such as the base plate and the fixing device and moving parts of reduced amplitude such as the inter-plate and the sleeper body.
- a slab track that includes, in a vertical or sandwich layered arrangement, a base plate 18 or seat plate, lower layer, an elastic inter-plate 15, intermediate layer, a sleeper body 13 in longitudinal form according to the longitudinal axis of a rail 19 of the rail track, and a sleeper body 13 fixing device 11, which anchors it to the base plate 18 of the slab track.
- the sleeper body 13 comprises at least one through hole 12 lined with a sleeve.
- the base plate 18 comprises at least one blind hole 16 in which an anchor bolt 17 is embedded, so that the anchor bolt 17 is firmly locked and prevented from moving inside the blind hole 16.
- the fixing device 11 can be inserted into the sleeve of the through hole 12; the fixing device 11 being immobilised but can be detached by the anchor bolt 17 in the installation position of the slab track.
- inter-plate 15 is not subject to an additional pretension in the slab track installation position, i.e., inter-plate 15 is subject to an original pretension depending on the weight of the sleeper body 13 when it is positioned above inter-plate 15, which, in turn, is positioned on the base plate 18.
- the fixing device 11 comprises a guide rod 22 for positioning the sleeper body 13 on the base plate 18 in the slab track installation position; and an immobilizing end 23 that works mechanically with the anchor bolt 17 to fix the sleeper body 13 in the slab track installation position.
- the fixing device 11 also comprises a head 21 in the through-hole 12 which does not protrude to the upper plane of the sleeper body 13 in the slab track installation position.
- the guiding rod 22 can be inserted into the sleeve lining the through hole 12 in the slab track installation position.
- the immobilizing end 23 is threadable into the internal thread of the anchor bolt 17 as is a retaining lock nut, in the slab track installation position.
- the inside diameter of the through hole 12 is larger than the diameter of the guide rod 22, which allows the through hole 12 to be aligned with the anchor bolt 17.
- the head 21 of fixing device 11 has a diameter substantially equal to the diameter of the sleeve of the through-hole 12, so that head 21 is held immobilized inside the sleeve of through hole 12 in the slab track installation position.
- Railway sleeper body 13 comprises at least two through holes 12 arranged close to each free outer side of the sleeper body, i.e., sleeper bodies 13 are arranged in a row one after another on the inter-plate. Therefore, the outer right and left side of the row are free.
- the through holes 12 can now be arranged in an inclined axis with respect to an axis parallel to an edge of a free outer side of the sleeper body 13; for example, the inclined axis cuts to two non-contiguous vertices of sleeper body 13 obliquely.
- Railway sleeper body 13 comprises at least two rail 19 retention devices designed to retain rails 19 on the reinforced concrete sleeper body 13.
- the means of retention are embedded in the corresponding recesses of sleeper body 13 from the upper plane to the lower plane of the sleeper body 13.
- the track retention media are also aligned in a row.
- the inter-plate 15 is made of elastic material such as an elastomer, being arranged between the sleeper body 13 and base plate 18 in a layered or sandwich configuration, in such a way that the sleeper body 13 exerts an original pre-tension, a function of the weight of the sleeper body 13 and the fixing arrangement 11, when fixing the sleeper body 13 on the base plate 18 in the slab track installation position, and it does not increase the original pre-tension of the sleeper body 13. That is to say, the sleeper body 13 exerts an additional pressure to the original pretension when a train carriage passes.
- elastic material such as an elastomer
- sleeper body 13 describes a vertical sliding movement from a resting position, corresponding to the slab track installation position, to a working position, relative to the passage of a train car on the rails 19, and vice versa. That is to say, the time that the sleeper body 13 is in a working position is a function of the frequency of trains passing on the rail track.
- Fixing device 11 provides an elastic, resistant and economic fixing, or retention to sleeper body 13, which requires a reduced number of pieces and whose assembly is simple and precise with no specialization.
- the fixing arrangement 11 provides an elastic retention whose elasticity is due both to the nature of the inter-plate 15 and to the sliding retention system of the sleeper body 13 in the slab track installation position.
- the sleeper body 13 is firmly retained and, at the same time, the retention is elastic.
- the slab track comprises at least one portion of base plate 18, one inter-plate 15 and at least one sleeper body 13 installed in a configuration in overlapping layers fixed in the slab track installation position by means of the fixing device 11.
- the slab track comprises non-moving parts such as base plate 18 and fixing device 11, and small moving parts such as the inter-plate 15 and sleeper body 13.
- the amplitude of the vertical displacement can be adjusted by increasing the thickness or width of the inter-plate layer 15.
- sleeper body 13 is now laterally removable in the event of failure of the base plate 18 seat, for example.
- the longitudinal sleeper bodies are the same, which guarantees their interchangeability.
- the fixing device 11 does not transmit pressure to the body of the sleeper body 13; it is firmly anchored to the base plate 18.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Railway Tracks (AREA)
- Connection Of Plates (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Supports For Pipes And Cables (AREA)
- Reinforcement Elements For Buildings (AREA)
- Clamps And Clips (AREA)
Description
- The present invention refers to a device that fixes a sleeper body, which is used to seat the tracks of a railway on it, for ballastless track.
- Railway sleepers for concrete slab track, which are fastened to the concrete slab of the railway track and to the track by means of through bolts are known in the state of the art.
- Railway sleepers are transverse or longitudinal components comprising the means of retaining the track rails on the body of a reinforced concrete sleeper.
- Concrete slab tracks are subjected to increased mechanical stress due to the increasing pressure of the vehicle axles and their speeds, which have tended to increase in recent times.
- Thus, speeds of over 200kmh are reached for passenger transport and speeds of 120km/h for freight transport. In addition, in order to guarantee the lifespan of the concrete slab track infrastructure, there must be some vertical mobility, i.e., an elastically deformable body must be placed under the track.
- The service life of the deformable body must be increased by preventing concrete sleepers from sliding sideways on the concrete base plate if an excessively flexible inter-plate is located under the sleeper.
-
ES2066748T1 -
EP1039029A1 disclosed a concrete bearing layer and rails mounted on sleepers which are fastened to the concrete layer by bolts which are inserted into bores in the sleeper. The bolts are held in the concrete layer in such a way that they can be unscrewed. The bolts have a threaded section at the end which forms a bore in the anchoring material filling the hole in the concrete layer. -
EP1380687A1 discloses a railway sleeper for a solid permanent way has a recess to take an inserted dowel stone which projects from the sleeper base into the cut opening in the geo-textile and fine asphalt layers over the permanent way. The sleeper and the dowel stone have aligned vertical openings to take the inserted filling material. The cylindrical dowel stone is held in the recess by a layer insert. For transport to the track laying site, a threaded pipe is through the filling opening and embedded in the concrete. A filling pipe is screwed to the threaded section with a limit stop against the sleeper. -
DE4428706A1 discloses a clamp screws are fastened to the sole plate via dowel connections. There is one clamp screw for each sleeper, located in its longitudinal centre. The screw passes through a vertical passage aperture in the sleeper. The aperture serves as template to form a dowel bore in the sole plate. In the area of the clamp screw, the sleeper engages on the sole plate enclosing a hollow space. A helical compression spring is located between clamp screw and sleeper. -
EP0709522A1 discloses a concrete base to which a supporting layer of asphalt is applied. Monobloc sleepers each with a central recess in the underside, bear against the asphalt on both sides of it. Each sleeper contains a central drilling, via which after laying a blind hole is drilled, extending into the base. Adhesive is delivered into the hole, after which a bolt or other fixing device is driven into the drilling and hole. This can move in the axial direction in the drilling and bears against its wall. The adhesive used can have two ingredients contained in a cartridge inserted in the blind hole. -
DE19514005A1 discloses a concrete sleeper is fastened to a concrete or asphalt bed plate by an arrangement of a through holer in the sleeper in alignment with a blind hole in the bed plate and a plastic sleeve in the sleeper hole. A steel bolt is passed through the sleeve into the blind hole and a layer of curable material is placed in the blind hole, between the steel bolt and the bed plate. The curable material may be a grout, or an epoxy resin and the sleeve may be retained in place by epoxy resin adhesive. - The present invention aims to resolve one or more of the drawbacks outlined above by means of a fixing device for the sleeper body as defined in the claims.
- A fixing device from a sleeper body to a base plate of a railway track where an inter-plate is located between the sleeper body and the base plate according to a configuration in overlapping layers; where the sleeper body comprises at least one through hole; the base plate comprises at least one blind hole in which an anchor bolt is embedded; the fixing device can be inserted into the through hole in order to be immobilized in a detachable way by the anchor bolt in the installation position of the slab track; without subjecting the inter-plate to an additional pretension to which the inter-plate is subjected when the sleeper body is placed on the base plate.
- The bolt is firmly locked and prevented from moving into the corresponding blind hole.
- The fixing device includes a guiding rod for positioning the sleeper body on the base plate in the slab track installation position; and an immobilizing end that works mechanically with the anchor bolt to fix the sleeper body in the slab track installation position. The rod and end of the fixing device pass through the inter-plate.
- The fixing device also includes a head included in the through hole without protruding from the upper plane of the sleeper body in the slab track installation position.
- The guiding rod can be inserted into a sleeve that internally lines the through hole in the slab track position. The immobilizing end is threadable into an internal thread of the anchor bolt such as a locking nut, in the installation position of the slab track.
- The inside diameter of the through hole sleeve is larger than the diameter of the fixing device stem, which allows the through hole to be aligned with the anchor bolt to ensure the fixing device force is centred on the anchor bolt. In this way, the fixing device is only applied in the direction of traction and twisting of the fixing device is avoided.
- However, the head of the fixing device has a diameter that is substantially equal to the diameter of the sleeve of the through hole, so that the head is locked and immobilized to make small lateral displacements according to a diameter of the head inside the sleeve of the through hole but allows limited vertical displacements of the sleeve with respect to the head and stem of the fixing device in the installation position of the slab track.
- The sleeper body comprises at least two through holes arranged close to each free outer side, i.e., the sleeper bodies are arranged in a row one after another on the inter-plate.
- Therefore, the outer right and left side of the sleeper body row are free. Through holes can be arranged in an inclined axis with respect to an axis parallel to an edge of a free outer side of the sleeper body; for example, the inclined axis cuts two non-contiguous vertices of the sleeper body obliquely.
- The sleeper body consists of at least two rail track retention devices designed to retain the rails on the reinforced concrete sleeper body. The means of retention are embedded in the corresponding recesses of the sleeper body from the upper plane to the lower plane of the sleeper body. The rail retention media are also aligned in a row.
- The inter-plate is made of elastic material such as an elastomer, being arranged between the sleeper body and the base plate in a layered or sandwich configuration, so that when the sleeper body exerts an original pre-tension, a function of the weight of the sleeper body, and the fixing arrangement, by fixing the sleeper body to the base plate in the installation position of the slab track, it does not increase the original pre-tension of the sleeper body. That is to say, the sleeper body exerts an additional pressure to the original pretension when a train carriage passes over it.
- Consequently, the sleeper body describes a sliding vertical movement, limited elastic travel, from a resting position, corresponding to the installation position of the slab track, to a working position, relative to the passage of a train carriage on the rail tracks, and vice versa. That is to say, the time that the sleeper body is in working position is a function of the frequency of passing trains on the railway.
- The fixing device provides an elastic, resistant and economic fastening or retention to the sleeper body, which requires a reduced number of pieces and whose assembly is simple and precise with no specialization.
- The fixing arrangement provides an elastic retention whose elasticity is due both to the nature of the inter-plate and to the sliding retention system of the sleeper body in the slab track installation position. The sleeper body is firmly retained, and, at the same time, the retention is elastic.
- The slab track comprises at least one portion of base plate, one inter-plate and at least one sleeper body installed in a configuration of overlapping layers fixed in the slab track installation position by means of the fixing device.
- The slab track comprises non-moving parts such as the base plate and the fixing device and moving parts of reduced amplitude such as the inter-plate and the sleeper body.
- A more detailed explanation of the device according to the embodiments of the invention is given in the description below, based on the attached figures in which:
-
figure 1 shows an elevated view of a plate track in a layered configuration, from bottom to top, base plate, inter-plate, sleeper body, rail track, -
figure 2 shows in a profile view a fixing device in the slab track installation position, -
figure 3 shows a perspective view of the slab track where the fixing device has been disassembled to remove the sleeper body from the slab track installation position, and -
figure 4 shows a plan view of the slab track in the installation position. - In relation to
figures 1 and 2 , where a slab track is shown that includes, in a vertical or sandwich layered arrangement, abase plate 18 or seat plate, lower layer, anelastic inter-plate 15, intermediate layer, asleeper body 13 in longitudinal form according to the longitudinal axis of arail 19 of the rail track, and asleeper body 13 fixingdevice 11, which anchors it to thebase plate 18 of the slab track. - The
sleeper body 13 comprises at least one throughhole 12 lined with a sleeve. Thebase plate 18 comprises at least oneblind hole 16 in which ananchor bolt 17 is embedded, so that theanchor bolt 17 is firmly locked and prevented from moving inside theblind hole 16. - The fixing
device 11 can be inserted into the sleeve of the throughhole 12; the fixingdevice 11 being immobilised but can be detached by theanchor bolt 17 in the installation position of the slab track. - Therefore, inter-plate 15 is not subject to an additional pretension in the slab track installation position, i.e., inter-plate 15 is subject to an original pretension depending on the weight of the
sleeper body 13 when it is positioned aboveinter-plate 15, which, in turn, is positioned on thebase plate 18. - The fixing
device 11 comprises aguide rod 22 for positioning thesleeper body 13 on thebase plate 18 in the slab track installation position; and animmobilizing end 23 that works mechanically with theanchor bolt 17 to fix thesleeper body 13 in the slab track installation position. - The fixing
device 11 also comprises ahead 21 in the through-hole 12 which does not protrude to the upper plane of thesleeper body 13 in the slab track installation position. - The guiding
rod 22 can be inserted into the sleeve lining the throughhole 12 in the slab track installation position. Theimmobilizing end 23 is threadable into the internal thread of theanchor bolt 17 as is a retaining lock nut, in the slab track installation position. - The inside diameter of the through
hole 12 is larger than the diameter of theguide rod 22, which allows the throughhole 12 to be aligned with theanchor bolt 17. - However, the
head 21 of fixingdevice 11 has a diameter substantially equal to the diameter of the sleeve of the through-hole 12, so thathead 21 is held immobilized inside the sleeve of throughhole 12 in the slab track installation position. -
Railway sleeper body 13 comprises at least two throughholes 12 arranged close to each free outer side of the sleeper body, i.e.,sleeper bodies 13 are arranged in a row one after another on the inter-plate. Therefore, the outer right and left side of the row are free. - In connection with
figure 4 , the throughholes 12 can now be arranged in an inclined axis with respect to an axis parallel to an edge of a free outer side of thesleeper body 13; for example, the inclined axis cuts to two non-contiguous vertices ofsleeper body 13 obliquely. -
Railway sleeper body 13 comprises at least tworail 19 retention devices designed to retainrails 19 on the reinforcedconcrete sleeper body 13. The means of retention are embedded in the corresponding recesses ofsleeper body 13 from the upper plane to the lower plane of thesleeper body 13. The track retention media are also aligned in a row. - The inter-plate 15 is made of elastic material such as an elastomer, being arranged between the
sleeper body 13 andbase plate 18 in a layered or sandwich configuration, in such a way that thesleeper body 13 exerts an original pre-tension, a function of the weight of thesleeper body 13 and the fixingarrangement 11, when fixing thesleeper body 13 on thebase plate 18 in the slab track installation position, and it does not increase the original pre-tension of thesleeper body 13. That is to say, thesleeper body 13 exerts an additional pressure to the original pretension when a train carriage passes. - Consequently,
sleeper body 13 describes a vertical sliding movement from a resting position, corresponding to the slab track installation position, to a working position, relative to the passage of a train car on therails 19, and vice versa. That is to say, the time that thesleeper body 13 is in a working position is a function of the frequency of trains passing on the rail track. - Fixing
device 11 provides an elastic, resistant and economic fixing, or retention tosleeper body 13, which requires a reduced number of pieces and whose assembly is simple and precise with no specialization. - The fixing
arrangement 11 provides an elastic retention whose elasticity is due both to the nature of the inter-plate 15 and to the sliding retention system of thesleeper body 13 in the slab track installation position. Thesleeper body 13 is firmly retained and, at the same time, the retention is elastic. - The slab track comprises at least one portion of
base plate 18, oneinter-plate 15 and at least onesleeper body 13 installed in a configuration in overlapping layers fixed in the slab track installation position by means of the fixingdevice 11. - The slab track comprises non-moving parts such as
base plate 18 and fixingdevice 11, and small moving parts such as the inter-plate 15 andsleeper body 13. The amplitude of the vertical displacement can be adjusted by increasing the thickness or width of theinter-plate layer 15. - In connection with
figure 3 ,sleeper body 13 is now laterally removable in the event of failure of thebase plate 18 seat, for example. The longitudinal sleeper bodies are the same, which guarantees their interchangeability. The fixingdevice 11 does not transmit pressure to the body of thesleeper body 13; it is firmly anchored to thebase plate 18.
Claims (5)
- A fixer device that fixes a sleeper body (13) to a base plate (18) of a slab track, the fixer device (11) comprising a head (21) which can be inserted into a through hole (12) of the sleeper body (13) without protruding from the upper plane of the sleeper body (13), a guide rod (22) which can be inserted into a sleeve (14) that internally lines the through hole (12) of the sleeper body (13) that positions the sleeper body (13) on the base plate (18), a retaining lock nut (17) and an immobilising end (23) which is threaded into an internal thread of the retaining lock nut (17) embedded within a blind hole (16) of the base plate (18) without subjecting an elastic inter-plate (15) to an additional pretension to which the elastic inter-plate (15) is subjected by the sleeper body (13) in an installation position of the track on the base plate (18), wherein the elastic inter-plate (15) is arranged between the sleeper body (13) and the base plate (18) in a layer configuration, providing an elastic retention for the sleeper body (13) to describe a vertical sliding movement from a resting position, corresponding to the installation position of the slab track, to a working position, relative to the passage of a railway carriage over the rails (19) of the railway track, and vice versa.
- Device in accordance with claim 1; characterized in that the vertical sliding movement of the elastic inter-plate (15) and the sleeper body (13) is a function of the elasticity of the elastic inter-plate (15) and of the displacement of the sleeve with respect to the head (21) of the guide rod (22) of the fixer device (11).
- Device according to claim 2; characterized in that the adjustment of the amplitude of the vertical sliding movement of the elastic inter-plate (15) and the sleeper body (13) is a function of the thickness or width of the layer of the elastic inter-plate (15).
- Device according to any claims 2 or 3; characterized in that the elastic inter-plate (15) is made of elastic material such as an elastomer.
- A slab track of rails (19) for railways; characterized in that the slab track comprises at least a portion of base plate (18), an elastic inter-plate (15) and at least one sleeper body (13) installed in a configuration in overlapping layers fixed in position of installation of the slab track by means of a fixer device (11) according to claims 1 to 4.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/ES2017/070140 WO2018185350A1 (en) | 2017-03-13 | 2017-03-13 | Device for securing a sleeper |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3597823A1 EP3597823A1 (en) | 2020-01-22 |
EP3597823A4 EP3597823A4 (en) | 2020-11-11 |
EP3597823B1 true EP3597823B1 (en) | 2022-08-17 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17904915.0A Active EP3597823B1 (en) | 2017-03-13 | 2017-03-13 | Device for securing a sleeper |
Country Status (9)
Country | Link |
---|---|
US (1) | US20200131711A1 (en) |
EP (1) | EP3597823B1 (en) |
AU (1) | AU2017408413A1 (en) |
BR (1) | BR112019019025A2 (en) |
CA (1) | CA3056511A1 (en) |
ES (1) | ES2930399T3 (en) |
PL (1) | PL3597823T3 (en) |
PT (1) | PT3597823T (en) |
WO (1) | WO2018185350A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114322755A (en) * | 2021-11-16 | 2022-04-12 | 中铁十四局集团房桥有限公司 | Automatic detection device and detection method for bottom template of switch tie |
CN115963008B (en) * | 2023-02-15 | 2024-05-28 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Full life cycle ballastless track laminated structure concrete dynamic performance test method |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4313105A1 (en) * | 1993-04-22 | 1994-11-03 | Walter Bau Ag | Method for producing a ballastless track superstructure and a track superstructure produced according to the method |
EP0637645B1 (en) * | 1993-08-02 | 1998-02-11 | Wayss & Freytag Aktiengesellschaft | Rigid railroad-base |
DE4428706A1 (en) * | 1994-08-12 | 1996-02-15 | Heilit & Woerner Bau Ag | Track grate on a continuous support plate and method for laying a track grate on a continuous support plate |
ATE145951T1 (en) * | 1994-09-24 | 1996-12-15 | Walter Bau Ag | METHOD FOR PRODUCING A BALARLESS TRACK SURFACE AND A TRACK SURFACE PRODUCED ACCORDING TO THE METHOD |
DE19514005A1 (en) * | 1995-04-13 | 1996-11-14 | Wiebe Hermann Grundstueck | Arrangement for fastening concrete sleeper to concrete or asphalt bed plate |
IT1296837B1 (en) * | 1997-12-03 | 1999-08-02 | Mario Ernesto Santini | STRUCTURE FOR THE SUPPORT AND CONTAINMENT OF RAILWAY TRACK SPACES AND PROCEDURE FOR INSTALLING THE ABOVE-MENTIONED WORK |
DE19913204B4 (en) * | 1999-03-24 | 2004-05-27 | Pfleiderer Infrastrukturtechnik Gmbh & Co. Kg | Supported fixed carriageway with threshold fasteners |
DE10230740B4 (en) * | 2002-07-09 | 2006-01-12 | Pfleiderer Infrastrukturtechnik Gmbh & Co. Kg | Dowel threshold and method of making a fixed track with such ties |
DE10236535B4 (en) * | 2002-08-09 | 2004-08-05 | Pfleiderer Infrastrukturtechnik Gmbh & Co. Kg | Process for the production of a slab track with the traverse method on bridges and other art structures |
WO2012111031A1 (en) * | 2011-02-14 | 2012-08-23 | Ipa International Rail System Technology S.R.L. | Railway structure and assembly method |
DK3384088T3 (en) * | 2015-02-10 | 2020-06-29 | Overail S R L | Modular system for laying subway and rail and tram lines |
-
2017
- 2017-03-13 CA CA3056511A patent/CA3056511A1/en active Pending
- 2017-03-13 ES ES17904915T patent/ES2930399T3/en active Active
- 2017-03-13 US US16/494,068 patent/US20200131711A1/en not_active Abandoned
- 2017-03-13 EP EP17904915.0A patent/EP3597823B1/en active Active
- 2017-03-13 AU AU2017408413A patent/AU2017408413A1/en not_active Abandoned
- 2017-03-13 BR BR112019019025A patent/BR112019019025A2/en unknown
- 2017-03-13 PL PL17904915.0T patent/PL3597823T3/en unknown
- 2017-03-13 WO PCT/ES2017/070140 patent/WO2018185350A1/en unknown
- 2017-03-13 PT PT179049150T patent/PT3597823T/en unknown
Also Published As
Publication number | Publication date |
---|---|
BR112019019025A2 (en) | 2024-01-16 |
AU2017408413A1 (en) | 2019-10-24 |
EP3597823A1 (en) | 2020-01-22 |
PL3597823T3 (en) | 2022-12-12 |
WO2018185350A1 (en) | 2018-10-11 |
ES2930399T3 (en) | 2022-12-12 |
EP3597823A4 (en) | 2020-11-11 |
CA3056511A1 (en) | 2018-10-11 |
PT3597823T (en) | 2022-11-16 |
US20200131711A1 (en) | 2020-04-30 |
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