EP0647738B1 - Box spring device for insulating railway track foundations - Google Patents
Box spring device for insulating railway track foundations Download PDFInfo
- Publication number
- EP0647738B1 EP0647738B1 EP19930402474 EP93402474A EP0647738B1 EP 0647738 B1 EP0647738 B1 EP 0647738B1 EP 19930402474 EP19930402474 EP 19930402474 EP 93402474 A EP93402474 A EP 93402474A EP 0647738 B1 EP0647738 B1 EP 0647738B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- case
- spring unit
- trefoil
- collar
- slab
- 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.)
- Expired - Lifetime
Links
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
- E01B2/00—General structure of permanent way
- E01B2/003—Arrangement of tracks on bridges or in tunnels
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/01—Elastic layers other than rail-pads, e.g. sleeper-shoes, bituconcrete
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/12—Floating rails or sleepers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/13—Dowels for slabs, sleepers or rail-fixings
Definitions
- the present invention relates to a device allowing the implementation reinforced concrete slabs of great length, poured on site and lifted, after drying, by the combined action of helical spring boxes and hydraulic cylinders, through prior reservations embétonnées.
- the present invention relates to a device according to claim 1 attached.
- a device retains the advantages associated with the use of helical springs and allows, by the use of cylinders hydraulic, progressive lifting of heavy loads.
- the cylinder hydraulic allows the spring preload. It’s the liberation of helical spring which ensures the lifting of the foundation.
- the hydraulic cylinders are moved apart and, as in the case of a floor floating on spring boxes, the foundation of the railway is completely disconnected from the primary slab.
- the hydraulic device makes it possible to vary the characteristics of the suspension depending on any change in charges.
- the supports when moving from the non-isolated area to the isolated area, the supports will be concentrated to increase the stiffness of the foundation and allow a gradual passage in suspended tracks.
- Figure 1 shows a principle section of a suspended track.
- Figure 2 shows the corresponding longitudinal view.
- Figure 3 shows a section of spring box with its damper.
- Figures 4a and 4b show the spring box introduced into the booking.
- Figures 5a and 5b show the implementation of the cylinder for the gradual lifting of the railway foundation.
- Figures 6a and 6b show the spring box after removing the cylinder and closing the cover.
- the device of the present invention therefore consists of a reservation (1) integrated in the slab (2) during the pouring of the concrete, the primary slab (3) serving as formwork. Anchorages provided on the reservations (4) allow these to be joined to the concrete and its frame.
- the spring box (5) After drying the slab, the spring box (5) is introduced into the reservation and 60 ° tour so that the clover (6) fulfills its role of support plate.
- the cylinder (7) is, in turn, inserted and locked in the reservation to ensure the lifting of the slab by pressure on the spring.
- the effort of cylinder is therefore transmitted to the primary slab (3) via the prestressed spring.
- the 3 screws (8) do not participate in dynamic lifting efforts.
- the operation is progressive and can be repeated up to the height of desired lift.
- the cylinder is then released from its hydraulic pressure and unlocked from the reservation.
- the potential energy is then stored in the spring prestressed which will deliver it during the lifting of the slab (2) depending on the progress of prestressing work on other reservations.
- the springs are pre-stressed in sufficient number, the slab (2) rises gradually.
- the 3 tabs (10) prevent any horizontal sliding of the part upper spring.
- the cover (11) is put in place with a suitable seal (12).
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Working Measures On Existing Buildindgs (AREA)
Description
Lorsque les nuisances vibratoires et acoustiques, générées par le trafic ferroviaire, sont jugées inacceptables pour la traversée aérienne ou souterraine d'une zone d'habitation, il est possible, lors de la conception des voies de chemins de fer, de désolidariser globalement les fondations de celles-ci et filtrer ainsi efficacement les trépidations.When the vibration and acoustic nuisances generated by traffic rail, are deemed unacceptable for air crossing or underground of a residential area, it is possible, during the design railway tracks, to globally separate the foundations of these and thus effectively filter the vibrations.
La présente invention concerne un dispositif permettant la mise en oeuvre de dalles béton armé de grande longueur, coulées sur place et levées, après séchage, par l'action combinée de boítes à ressort hélicoïdal et de vérins hydrauliques, au travers de réservations préalablement embétonnées.The present invention relates to a device allowing the implementation reinforced concrete slabs of great length, poured on site and lifted, after drying, by the combined action of helical spring boxes and hydraulic cylinders, through prior reservations embétonnées.
La technique antérieure à la présente invention pour la mise en oeuvre de telles fondations consiste, en général, à couler le béton sur des plaques ou des éléments en matières de synthèse aux caractéristiques élastiques limitées et mal connues. Cette technique ne permet pas d'obtenir des fréquences propres d'installation suffisamment basses pour garantir un bon filtrage. En outre, lors de la mise en oeuvre, des ponts rigides se créent entre dalle primaire et dalle suspendue. Ces points durs favorisent la transmission solidienne.The prior art to the present invention for the implementation of such foundations consist, in general, of pouring concrete on plates or synthetic materials with elastic characteristics limited and poorly known. This technique does not provide natural frequencies of installation sufficiently low to guarantee a good filtering. In addition, during installation, rigid bridges are created between primary slab and suspended slab. These hard points favor the solidary transmission.
Le document DE-B-2927852, qui décrit par ailleurs la mise en oeuvre de supports élastiques intégrables lors de la coulée des fondations de voies, concerne des appuis caoutchouc de fréquence propre relativement élevée qui ne permettent pas un filtrage efficace.Document DE-B-2927852, which further describes the implementation of elastic supports that can be integrated during the casting of track foundations, relates to rubber bearings of relatively high natural frequency which do not allow effective filtering.
La présente invention a pour objet un dispositif selon la revendication 1
annexée. Un tel dispositif conserve les avantages liés à l'utilisation de
ressorts hélicoïdaux et permet, par la mise en oeuvre de vérins
hydrauliques, le levage progressif de charges lourdes. Le vérin
hydraulique permet la précontrainte du ressort. C'est la libération du
ressort hélicoïdal qui assure le levage de la fondation.The present invention relates to a device according to
L'absence de vis de réglage, en partie basse, dans la présente invention garantit la reprise des efforts horizontaux génères par les courbes de la voie.The absence of adjusting screws, in the lower part, in the present invention guarantees the recovery of the horizontal forces generated by the curves of the way.
La présence d'amortisseurs visqueux combinés avec les ressorts complète l'efficacité de la suspension lors du passage des convois. The presence of viscous dampers combined with the complete springs the effectiveness of the suspension when passing convoys.
Une fois l'opération de levage et de réglage de la fondation terminée, les vérins hydrauliques sont écartés et, comme dans le cas d'un plancher flottant sur boítes à ressort, la fondation de la voie ferrée est totalement désolidarisée de la dalle primaire.Once the lifting and setting operation of the foundation is complete, the hydraulic cylinders are moved apart and, as in the case of a floor floating on spring boxes, the foundation of the railway is completely disconnected from the primary slab.
Le dispositif hydraulique permet de faire varier les caractéristiques de la suspension en fonction d'une éventuelle évolution des charges.The hydraulic device makes it possible to vary the characteristics of the suspension depending on any change in charges.
Le choix des ressorts et des amortisseurs et leur répartition permet de reprendre les charges statiques (fondation béton) et dynamiques (passage des convois) en fonction du tracé de la voie.The choice of springs and shock absorbers and their distribution allows take up static and dynamic loads (concrete foundation) (passage of convoys) depending on the track layout.
En particulier, lors du passage de la zone non-isolée à la zone isolée, les appuis seront concentrés pour augmenter la raideur de la fondation et permettre un passage progressif en voies suspendues.In particular, when moving from the non-isolated area to the isolated area, the supports will be concentrated to increase the stiffness of the foundation and allow a gradual passage in suspended tracks.
Les boítes à ressorts destinées à la suspension des fondations de voies ferrées sont constituées :
- d'une réservation avec ancrages, embétonnées lors de la coulée et protégée contre la corrosion,
- d'un noyau constitué par un ressort protégé et ses plaques d'appui inférieures et supérieures, et d'un éventuel amortisseur,
- d'un trèfle (6) équipé de 3 vis de réglage, le trèfle et la bague d'appui interne étant conformés de façon à constituer un ensemble de type à baïonnette permettant d'une part l'engagement du trèfle dans la bague d'appui pour l'interposition de celui-ci entre la bague et la boíte à ressort, et d'autre part la rotation du dit trèfle de façon à remplir une fonction d'appui contre la bague, lesdites vis de réglage permettant de transférer à la boíte à ressort, après levage de la dalle de fondation, par un vérin provisoirement verrouillé dans la partie supérieure de la réservation et prenant appui sur la boíte à ressort, les efforts transmis par la bague d'appui interne au trèfle,
- d'un outillage hydraulique dont la mise en oeuvre est limitée aux opérations de levage et de réglage,
- d'un couvercle assurant l'étanchéité après dépose du vérin.
- a reservation with anchors, encased during casting and protected against corrosion,
- a core constituted by a protected spring and its lower and upper bearing plates, and a possible shock absorber,
- a clover (6) equipped with 3 adjusting screws, the clover and the internal support ring being shaped so as to constitute a bayonet type assembly allowing on the one hand the engagement of the clover in the ring support for the interposition of the latter between the ring and the spring box, and on the other hand the rotation of said clover so as to fulfill a support function against the ring, said adjustment screws making it possible to transfer to the spring box, after lifting of the foundation slab, by a cylinder temporarily locked in the upper part of the reservation and bearing on the spring box, the forces transmitted by the internal support ring to the clover,
- hydraulic tools, the implementation of which is limited to lifting and adjusting operations,
- a cover ensuring sealing after removal of the jack.
La figure 1 représente une coupe de principe d'une voie suspendue.Figure 1 shows a principle section of a suspended track.
La figure 2 représente la vue longitudinale correspondante.Figure 2 shows the corresponding longitudinal view.
La figure 3 représente une coupe de boíte à ressort avec son amortisseur. Figure 3 shows a section of spring box with its damper.
Les figures 4a et 4b représentent la boíte à ressort introduite dans la réservation.Figures 4a and 4b show the spring box introduced into the booking.
Les figures 5a et 5b représentent la mise en oeuvre du vérin pour le levage progressif de la fondation de la voie ferrée.Figures 5a and 5b show the implementation of the cylinder for the gradual lifting of the railway foundation.
Les figures 6a et 6b représentent la boíte à ressort après dépose du vérin et fermeture du couvercle.Figures 6a and 6b show the spring box after removing the cylinder and closing the cover.
Le dispositif de la présente invention est donc constitué d'une réservation (1) intégrée dans la dalle (2) lors de la coulée du béton, la dalle primaire (3) servant de coffrage. Des ancrages prévus sur les réservations (4) permettent de solidariser celles-ci avec le béton et son armature.The device of the present invention therefore consists of a reservation (1) integrated in the slab (2) during the pouring of the concrete, the primary slab (3) serving as formwork. Anchorages provided on the reservations (4) allow these to be joined to the concrete and its frame.
Après séchage de la dalle, la boíte à ressort (5) est introduite dans la réservation et tournée de 60° pour que le trèfle (6) assure son rôle de plaque d'appui.After drying the slab, the spring box (5) is introduced into the reservation and 60 ° tour so that the clover (6) fulfills its role of support plate.
Le vérin (7) est, à son tour, introduit et verrouillé dans la réservation pour assurer le levage de la dalle par pression sur le ressort. L'effort du vérin est donc transmis à la dalle primaire (3) par l'intermédiaire du ressort précontraint.The cylinder (7) is, in turn, inserted and locked in the reservation to ensure the lifting of the slab by pressure on the spring. The effort of cylinder is therefore transmitted to the primary slab (3) via the prestressed spring.
Les 3 vis (8) ne participent pas aux efforts dynamiques de levage.The 3 screws (8) do not participate in dynamic lifting efforts.
L'opération est progressive et peut être renouvelée jusqu'à la hauteur de levage souhaitée.The operation is progressive and can be repeated up to the height of desired lift.
Le vérin est ensuite libéré de sa pression hydraulique et déverrouillé de la réservation. L'énergie potentielle est alors engrangée dans le ressort précontraint qui la délivrera lors du levage de la dalle (2) en fonction de l'avancement des travaux de précontrainte sur les autres réservations. Quand les ressorts sont précontraints en nombre suffisant, la dalle (2) s'élève de façon progressive.The cylinder is then released from its hydraulic pressure and unlocked from the reservation. The potential energy is then stored in the spring prestressed which will deliver it during the lifting of the slab (2) depending on the progress of prestressing work on other reservations. When the springs are pre-stressed in sufficient number, the slab (2) rises gradually.
Les 3 taquets (10) interdisent tout glissement horizontal de la partie supérieure du ressort.The 3 tabs (10) prevent any horizontal sliding of the part upper spring.
Le couvercle (11) est mis en place avec un joint d'étanchéité adapté (12).The cover (11) is put in place with a suitable seal (12).
Claims (3)
- Apparatus for the construction of elastic foundations on ponctual supports for railways, characterised by :a case (1) with anchor bars (4) to fix it to a foundation slab (2) when pouring concrete on the primary slab, the case beeing fitted with an internal support collar,an helicoid spring unit (5) integrated in the case, meant to cooperate with the primary slab and the support collar to be used as a ponctual support, low frequency, for the foundation slab,a trefoil (6) equiped with three regulation screws (8), the trefoil and the internal support collar beeing formed in order to to make a unit of bayonet type allowing on one side, the fitting of the trefoil inthez support collar to position it between the collar and the spring unit, and on the other side. the rotation of the trefoil in order to fill a support function against the collar, the regulation screws allowing transmission to the spring unit, after lifting the foundation slab by jack (7), temporarily locked in upper part of the case and taking support on the spring unit, the efforts transmitted to the trefoil by the internal support collar.
- Method as set forth in claim 1 characterised in that the spring unit can be combined with a viscous medium absorber.
- Method as set forth in claim 1 and 2 characterised in that inspection of the spring unit after the setting to work of the elastic foundation to allow the adjustment in height and frequency in a case of traffic railway increase is possible with the jack fitted and locked in the case as during the lifing operations.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19930402474 EP0647738B1 (en) | 1993-10-08 | 1993-10-08 | Box spring device for insulating railway track foundations |
| DE1993631932 DE69331932T2 (en) | 1993-10-08 | 1993-10-08 | Resilient box device for insulating the substructure of a railway track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19930402474 EP0647738B1 (en) | 1993-10-08 | 1993-10-08 | Box spring device for insulating railway track foundations |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0647738A1 EP0647738A1 (en) | 1995-04-12 |
| EP0647738B1 true EP0647738B1 (en) | 2002-05-15 |
Family
ID=8214752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19930402474 Expired - Lifetime EP0647738B1 (en) | 1993-10-08 | 1993-10-08 | Box spring device for insulating railway track foundations |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0647738B1 (en) |
| DE (1) | DE69331932T2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714620A (en) * | 2015-09-17 | 2016-06-29 | 成都明日星辰科技有限公司 | Track with oil pressure damper |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297712C (en) * | 2004-07-23 | 2007-01-31 | 尹学军 | Floating road bed |
| CN102359525B (en) * | 2011-10-31 | 2013-03-27 | 浙江天铁实业股份有限公司 | Rubber elastic shock absorber |
| AT517573A1 (en) | 2015-07-21 | 2017-02-15 | Steinhauser Consulting Eng Zt Gmbh | Bahngleisauflagerung |
| CN108591355A (en) * | 2018-06-27 | 2018-09-28 | 佛山科学技术学院 | A kind of vertical vibration isolation bearing |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3974963A (en) * | 1974-11-15 | 1976-08-17 | Westinghouse Air Brake Company | Railway wheel squeal suppression arrangement |
| DE2927852C2 (en) * | 1979-07-10 | 1981-04-02 | Gumba Gummi Im Bauwesen Gmbh, 8011 Grasbrunn | Arrangement for vibration and structure-borne noise insulated track support of underground railways |
| US4616395A (en) * | 1983-06-30 | 1986-10-14 | Perini Corporation | Railroad track fixation method and apparatus |
| AT402829B (en) * | 1992-01-29 | 1997-09-25 | Vae Ag | DEVICE FOR CONNECTING RAILS |
-
1993
- 1993-10-08 EP EP19930402474 patent/EP0647738B1/en not_active Expired - Lifetime
- 1993-10-08 DE DE1993631932 patent/DE69331932T2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714620A (en) * | 2015-09-17 | 2016-06-29 | 成都明日星辰科技有限公司 | Track with oil pressure damper |
Also Published As
| Publication number | Publication date |
|---|---|
| DE69331932T2 (en) | 2002-12-19 |
| EP0647738A1 (en) | 1995-04-12 |
| DE69331932D1 (en) | 2002-06-20 |
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