FR2678295A3 - Dowel for prestressed concrete sleepers - Google Patents
Dowel for prestressed concrete sleepers Download PDFInfo
- Publication number
- FR2678295A3 FR2678295A3 FR9207653A FR9207653A FR2678295A3 FR 2678295 A3 FR2678295 A3 FR 2678295A3 FR 9207653 A FR9207653 A FR 9207653A FR 9207653 A FR9207653 A FR 9207653A FR 2678295 A3 FR2678295 A3 FR 2678295A3
- Authority
- FR
- France
- Prior art keywords
- dowel
- prestressed concrete
- concrete sleepers
- anchor
- cap
- 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
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
- E01B9/04—Fastening on wooden or concrete sleepers or on masonry without clamp members
- E01B9/14—Plugs, sleeves, thread linings, or other inserts for holes in sleepers
- E01B9/18—Plugs, sleeves, thread linings, or other inserts for holes in sleepers for concrete sleepers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Clamps And Clips (AREA)
- Reinforcement Elements For Buildings (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
Description
CHEVILLE POUR TRAVERSES EN BETON PRECONTRAINT
La présente invention se rapporte à une cheville ouverte pour traverses en béton précontraint produites par coulee sur socle allongé.ANCHOR FOR PRESTRESSED CONCRETE CROSSINGS
The present invention relates to an open anchor for prestressed concrete sleepers produced by casting on an elongated base.
Des chevilles en matière plastique, destinées à l'ancrage des tirants de fixation des rails dans les traverses en béton, sont bien connues. Les chevilles conçues pour les traverses en beton précontraint produites par coulée sur socle allongé (par exemple des traverses Abetong) presentent une forme fermée. La cheville est noyee dans le béton et s'étend environ jusqu'aux 2/3 de la hauteur des traverses. Pour empêcher l'accumulation d'eau dans la cheville au cours du transport, du stockage ou sur le chantier de construction, cette cheville est soit revêtue de graisse (Ferrocote) de l'intérieur, soit munie de lèvres d'étanchement. Les deux mesures réclament une somme de travail et une mise en oeuvre de matière supplémentaires. Toutefois, l'expérience a démontré que l'étanchéité absolue des chevilles n est pas atteinte.En cas de gel, l'eau qui s'insinue dans la cheville peut provoquer des fissures sur la traverse, voire même une rupture de cette traverse. Plastic anchors, intended for anchoring the tie rods for fixing the rails in the concrete sleepers, are well known. The anchors designed for prestressed concrete sleepers produced by casting on an elongated base (for example Abetong sleepers) have a closed shape. The anchor is embedded in the concrete and extends approximately up to 2/3 of the height of the sleepers. To prevent water from accumulating in the anchor during transport, storage or on the construction site, this anchor is either coated with grease (Ferrocote) from the inside, or fitted with sealing lips. Both measures require additional work and additional material. However, experience has shown that the absolute tightness of the ankles is not achieved. In the event of frost, the water which seeps into the ankle can cause cracks on the cross member, or even a rupture of this cross member.
Par ailleurs, l'on connait également une cheville ouverte qui est utilisée pour des traverses en béton précontraintes individuellement. Cette cheville est ouverte au voisinage de son fond. La cheville est noyée dans le béton. Au préalable, cependant, l'ouverture située au fond de la cheville doit être obturée pour empêcher la pénétration de beton. Furthermore, there is also known an open anchor which is used for individually prestressed concrete sleepers. This pin is open in the vicinity of its bottom. The anchor is embedded in the concrete. Beforehand, however, the opening at the bottom of the dowel must be closed to prevent the penetration of concrete.
Après la prise du béton, l'obturation (coffrage) est enlevée de manière compliquée, voire expulsée au marteau. Ce type de cheville ne se prête pas à une fabrication de traverses en béton precontraint produites par coulée sur socle allonge. After the concrete has set, the shutter (formwork) is removed in a complicated way, even expelled with a hammer. This type of anchor does not lend itself to the production of prestressed concrete sleepers produced by casting on an elongated base.
La présente invention s'est fixé pour objet de fournir une cheville se prêtant à la fabrication de traverses en béton produites par coulée sur socle allongé. Conformément à 1 'inven- tion, cet objet est atteint par le fait que la cheville est prolongée par un capuchon tronconique sur la terminaison du filetage interne, et ce capuchon est pourvu d'un fond. Le fond de la cheville possède une paroi mince et peut être aisément foré ou percé. The present invention has set itself the object of providing a dowel suitable for the manufacture of concrete sleepers produced by casting on an elongated base. According to the invention, this object is achieved by the fact that the plug is extended by a frustoconical cap on the termination of the internal thread, and this cap is provided with a bottom. The bottom of the dowel has a thin wall and can be easily drilled or drilled.
Par rapport aux chevilles classiques, l'avantage de cette cheville consiste en ce que de l'eau ne peut pratiquement pas s'y accumuler. Compared to conventional ankles, the advantage of this ankle is that practically no water can accumulate there.
Le fond de la cheville est perce ou fore apres que les traverses précontraintes ont été fabriquées, si bien que de l'eau ne peut plus s'accumuler dans la cheville. Le fond de la cheville s'avère nécessaire au stade de la fabrication de la traverse précontrainte. La cheville est dimensionnée de telle sorte qu'elle parcoure toute la traverse. Le fond de la cheville empêche que le beton s'insinue dans cette cheville au stade du bétonnage. The bottom of the anchor is drilled or drilled after the prestressed ties have been made, so that water can no longer accumulate in the ankle. The bottom of the anchor is necessary at the stage of manufacturing the prestressed crossmember. The anchor is dimensioned so that it traverses the entire crosspiece. The bottom of the dowel prevents the concrete from creeping into this dowel during the concreting stage.
En outre, le capuchon tronconique prodigue l'avantage consistant en ce que le filetage externe n'est pas prolongé, si bien que les rapports de forces qui se présentent sont les me- mes que dans la cheville courte ; cela signifie qu'il n'y a aucune modification des rapports existant dans la cheville courte, et ayant fait leurs preuves. In addition, the frustoconical cap provides the advantage that the external thread is not extended, so that the force ratios which arise are the same as in the short ankle; this means that there is no modification of the reports existing in the short ankle, and having proven.
Un exemple de realisation de l'invention est commenté ciaprès plus en détail, en regard du dessin. An exemplary embodiment of the invention is discussed below in more detail, with reference to the drawing.
La cheville 1 se compose d'un corps 6, d'une couronne 2 et d'une terminaison 3 du filetage interne. La cheville 1 est prolongée par un capuchon 4. Le capuchon 4 est de configuration tronconique observé de l'extérieur, et ne présente ni filetage, ni nervures. La face interne du capuchon tronconique 4 est de forme cylindrique sensiblement jusqu'à la moitié, puis tronconique à partir du centre. The pin 1 consists of a body 6, a crown 2 and a termination 3 of the internal thread. The plug 1 is extended by a cap 4. The cap 4 has a frustoconical configuration observed from the outside, and has no threads or ribs. The internal face of the frustoconical cap 4 is of cylindrical shape substantially up to half, then frustoconical from the center.
Le capuchon tronconique 4 est obturé par un fond 5. Le fond 5 de la cheville est conçu de manière à pouvoir être aise- ment foré ou percé. Cependant, ce fond 5 doit simultanément re- sister à la pression qui lui est imposée lors du bétonnage. The frustoconical cap 4 is closed by a bottom 5. The bottom 5 of the dowel is designed so that it can be easily drilled or drilled. However, this bottom 5 must simultaneously resist the pressure imposed on it during concreting.
La cheville 1 est intégralement fabriquée en une matière plastique, par exemple une matière thermoplastique. The plug 1 is entirely made of a plastic material, for example a thermoplastic material.
Il va de soi que de nombreuses modifications peuvent etre apportées à la cheville décrite et représentée, sans sortir du cadre de l'invention. It goes without saying that many modifications can be made to the ankle described and shown, without departing from the scope of the invention.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT128391A AT397290B (en) | 1991-06-27 | 1991-06-27 | Dowels for prestressed concrete sleepers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2678295A3 true FR2678295A3 (en) | 1992-12-31 |
| FR2678295B3 FR2678295B3 (en) | 1993-06-04 |
Family
ID=3510542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9207653A Expired - Lifetime FR2678295B3 (en) | 1991-06-27 | 1992-06-23 | PLUG FOR PRE-STRESSED CONCRETE CROSSINGS. |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT397290B (en) |
| CH (1) | CH684757A5 (en) |
| CZ (1) | CZ281478B6 (en) |
| DE (1) | DE9201839U1 (en) |
| FR (1) | FR2678295B3 (en) |
| HU (1) | HU213148B (en) |
| SK (1) | SK280759B6 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0821103A1 (en) * | 1996-07-24 | 1998-01-28 | Wirthwein GmbH & Co | Internally threaded plastic dowel |
| WO2008122683A1 (en) | 2007-04-04 | 2008-10-16 | Mondragon Soluciones, S.L.U. | Sheath for fastening railway rails, method for replacing said sheath in a sleeper and tools for performing said method |
| US20130117997A1 (en) * | 2011-11-11 | 2013-05-16 | Bell Helicopter Textron Inc. | System and Method for Installing a Fastener Rod |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9208989U1 (en) * | 1992-07-04 | 1992-09-10 | Schwellenwerk Stewing Gmbh & Co., 3394 Langelsheim, De |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1897950U (en) * | 1964-03-04 | 1964-08-06 | Paul Mueller Holz Und Kunststo | PLASTIC DOWELS FOR FASTENING RAILS ON CONCRETE SLEEPERS. |
| DE1896691U (en) * | 1964-05-02 | 1964-07-16 | Paul Mueller Holz Und Kunststo | DOWELS, IN PARTICULAR FOR FASTENING RAILWAY SLEEPERS. |
| AT267828B (en) * | 1965-10-27 | 1969-01-10 | Langensiepen Kg M | Fiber anchor |
| DE2254602C2 (en) * | 1972-11-08 | 1974-12-05 | Tox-Duebel-Werk Richard W. Heckhausen Kg, 7762 Ludwigshafen | Expansion anchor |
| FR2315568A1 (en) * | 1975-06-25 | 1977-01-21 | Vape Sa Ets | SCREW FIXING DEVICE IN A CONSTRUCTION ELEMENT IN AGGLOMERATED MATERIAL |
| DE3039931C2 (en) * | 1980-10-23 | 1982-09-16 | Dyckerhoff & Widmann AG, 8000 München | Dowels for fastening rails on prestressed concrete sleepers |
| DE8436722U1 (en) * | 1984-12-14 | 1985-05-23 | Selter, Marlen, 5952 Attendorn | Fixing dowels |
-
1991
- 1991-06-27 AT AT128391A patent/AT397290B/en not_active IP Right Cessation
-
1992
- 1992-02-13 DE DE9201839U patent/DE9201839U1/de not_active Expired - Lifetime
- 1992-03-16 CH CH82892A patent/CH684757A5/en not_active IP Right Cessation
- 1992-05-15 SK SK1475-92A patent/SK280759B6/en unknown
- 1992-05-15 CZ CS921475A patent/CZ281478B6/en not_active IP Right Cessation
- 1992-06-23 FR FR9207653A patent/FR2678295B3/en not_active Expired - Lifetime
- 1992-06-26 HU HU9202152A patent/HU213148B/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0821103A1 (en) * | 1996-07-24 | 1998-01-28 | Wirthwein GmbH & Co | Internally threaded plastic dowel |
| WO2008122683A1 (en) | 2007-04-04 | 2008-10-16 | Mondragon Soluciones, S.L.U. | Sheath for fastening railway rails, method for replacing said sheath in a sleeper and tools for performing said method |
| US20130117997A1 (en) * | 2011-11-11 | 2013-05-16 | Bell Helicopter Textron Inc. | System and Method for Installing a Fastener Rod |
Also Published As
| Publication number | Publication date |
|---|---|
| SK147592A3 (en) | 1994-05-11 |
| HU213148B (en) | 1997-02-28 |
| CH684757A5 (en) | 1994-12-15 |
| HUT62672A (en) | 1993-05-28 |
| CZ147592A3 (en) | 1993-01-13 |
| HU9202152D0 (en) | 1992-10-28 |
| AT397290B (en) | 1994-03-25 |
| CZ281478B6 (en) | 1996-10-16 |
| DE9201839U1 (en) | 1992-04-09 |
| SK280759B6 (en) | 2000-07-11 |
| FR2678295B3 (en) | 1993-06-04 |
| ATA128391A (en) | 1993-07-15 |
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