EP0875636A1 - Câble de précontrainte, et élément de gaine pour un tel câble - Google Patents
Câble de précontrainte, et élément de gaine pour un tel câble Download PDFInfo
- Publication number
- EP0875636A1 EP0875636A1 EP98401060A EP98401060A EP0875636A1 EP 0875636 A1 EP0875636 A1 EP 0875636A1 EP 98401060 A EP98401060 A EP 98401060A EP 98401060 A EP98401060 A EP 98401060A EP 0875636 A1 EP0875636 A1 EP 0875636A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheath
- vent channel
- tubular cavity
- sheath element
- wall
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/10—Ducts
Definitions
- the present invention relates to the field of prestressing cables for construction works.
- Sheath is usually made of plastic such as high density polyethylene (HDPE).
- the protective material is typically a cement grout.
- the prestressing cables of the works of construction frequently have a curved path with high points and low points, the effort of prestress exerted by the cable being directed downwards in the vicinity of high points and vice versa.
- vents When injecting the sheaths of these cables with the cement grout, the air present in the sheath, water which separates from the cement grout by settling or filtration, and "poor" grout, that is to say the decantation or filtration has extracted the constituents the heaviest, are evacuated at the high points to using devices called vents.
- These vents are generally consist of a shell made of material plastic tightly attached to the sheath and a tube, forming a body or attached to this shell, which allows channel grout, water and air out of the material constituting the structure (most often concrete).
- the present invention rather relates to the external prestressing technique, in which the cable sheaths, in the straight sections of their layout, are placed outside the structure. They nevertheless cross the structure in massifs in order to take up the forces exerted by the cable and to forward to the structure. The high and low points of cable are then located in deflecting spacers.
- cable sheaths pass through these spacers passing through shuttering tubes of metal, bent and embedded in concrete.
- the cable can then be dismantled for replacement, by sectioning in and out of accessible areas spacers and anchors.
- An object of the present invention is to facilitate removal of unwanted components from the material filling the sheath at the high points of a external prestressing cable.
- the invention provides an element of sheath as defined in claim 1, as well as a prestressing cable as defined in the claim 9.
- Preferred embodiments are set out in claims 2 to 8 and 10 to 14.
- the highest point of the cable will normally be included in said first region, although this region could be somewhat offset from this highest point, especially downstream relative to the grout injection direction.
- An advantage of the invention is that the first region, in which poor air, water and / or grout are extracted from the sheath during injection, may extend over a certain length of the sheath element, instead of being punctual as in the case of vents conventional. This ensures more efficient evacuation.
- the invention is applicable in the field of non-removable external prestressing (concrete of the work being poured around the sheath on part of the length of the element). It then facilitates the implementation place vents, especially when the constitution of the structure is such that it is difficult to predict the passage of a tube towards the top of the structure.
- the invention is applicable even more advantageous in the field of external prestressing removable.
- the vent is integral with the sheath element allows the cable to be dismantled after the hardening of the grout. It can be used as well in the case of new structures than in that of structural reinforcement preexisting.
- the prestressed structure 7 is a concrete bridge whose apron is supported on batteries 8, 9.
- a cable Prestressing device 10 the strands of which are anchored to their ends by means of conventional anchoring devices 11, is used to exert a prestressing force on deck 7.
- This cable 10 follows, between the devices anchor 11 supported by the end stacks 8, a winding path in broken line whose portions straight lines are accessible from the outside. In the example considered, this winding path has a point top center, where the cable 10 passes through a planned diverter in a central stack 9, and two high points end, where the cable 10 passes through deflectors respectively adjacent to the anchoring devices 11. Between the central stack 9 and each of the end stacks 8, the cable path 10 has a low point where it is guided in a deflecting spacer provided in a pile intermediate 9a.
- the sheath of the cable 10 consists of a tube made of plastic material, for example HDPE, which consists successive elements which, in a conventional manner, are welded end to end or connected using heating sleeves.
- Figures 2 to 4 show a sheath element 15 according to the invention used in an upper part of the journey winding cable, at the center stack 9. A similar arrangement is provided in the upper parts of the cable located at the end batteries 8. At this level, the use of a sheath element according to the invention provides good protection of the strands at neighborhood of anchors, which can be points sensitive.
- a bent steel formwork tube 16 was drowned in the concrete of pile 9. If the invention was implemented to reinforce a preexisting structure, the formwork tube 16, rather than being directly embedded in the concrete of pile 9, could be in a block concrete added to this pile 9 at the time of carrying out the reinforcement.
- the shuttering tube 16 has a diameter greater than that of the cable sheath 10. In the example considered, where the cable 10 has nineteen strands 17 of diameter 15.2 mm or 15.7 mm housed in a sheath outer diameter 110 mm, one can for example use a shuttering tube 16 with internal diameter 128 mm.
- the sheath element 15 has a circular section over its entire length. Inside this circular section are on the one hand a tubular cavity 20 occupying most of the section and intended to receive the strands 17, and on the other hand a vent channel 21.
- the section of the channel d 'vent 21 is substantially smaller than that of tubular cavity 20 (it is for example from 200 to 500 mm 2 ).
- vent channel 21 is located above of the tubular cavity 20, that is to say on the side outside of the curvature of the element 15.
- the vent channel 21 extends over a part only the length of the sheath element 15. One of its ends, it is provided with an opening 22 (figure 4) which makes it communicate with the outside of the sheath. A threaded end piece 23 is welded around this opening 22 to allow connection of a tube threaded vent 24.
- the sheath element 15 is engaged in the tube shuttering 16 by its end opposite to the end piece 23, this tip 23 remaining outside in the position sheath element 15, as shown in the Figure 2.
- the vent channel 21 extends beyond the highest point of the cable passage at through the pile 9 relative to the position of the nozzle 23.
- the wall 26 separating the vent channel 21 of the tubular cavity 20 of the element of sheath has orifices 25 which communicate the vent channel 21 with the tubular cavity 20.
- These orifices 25, the cross section of which is for example of the order of 12 mm, are distributed over the length L1 + L2 of this region. This total length L1 + L2 is preferably at least 50 cm.
- the length L1, L2 of this region on each side of the highest point is at least 50 cm.
- the orifices 25 are for example arranged in staggered along region L1 + L2, so that some of them (shown schematically by broken lines on the Figure 3) are close to the junction between the wall separator 26 and the cylindrical wall of the cavity tubular 20.
- a first phase the grout is injected by one end of the sheath, or by one of the points down its winding path.
- the vent tube 24 is open to let the air from inside the sheath. It could also be blocked, especially if a thixotropic grout is used. Decanting the grout and filtering it through internal interstices of strands 17 cause formation pockets of water and poor grout at the points top of the sheath.
- the first is carried out from the downstream orifice of stack 9 relative to the direction of injection performed in the first phase.
- the vent tube 24 rejects water, grout poor and possibly air that may have subsisted in the sheath element due to turbulence which may occur during the first injection downstream of the point on upper.
- water and poor grout can remain in the sheath are in turn evacuated by the channel 21 and the vent tube 24.
- the sheath element 15 has the advantage that the collection of the components to be evacuated is not punctual, but distributed over the length L1 + L2.
- the wall 26 separating the vent channel 21 of the tubular cavity 20 is connected gently, grazing, to the wall cylindrical of the tubular cavity 20 at both ends of the vent channel 21. This prevents the ends of the channel 21 form obstacles for threading the strands 17 inside the tubular cavity 20.
- the tubular cavity 20 of the element sheath has a circular section which includes the section of the vent channel 21.
- one possibility is to weld together two pieces of general tubular shapes obtained from two plastic tubes.
- One of these pieces 32 constitutes the major part of the sheath element 15. It corresponds to a tube with a longitudinal notch produced by cutting a first strip 27 which will constitute the upper wall of the vent channel 21.
- the opening 22 is pierced at one end of this strip 27, and the end piece 23 is welded, at 28, around this opening 22 on the outer face of the strip 27.
- the other plastic tube is cut to clear a second strip which will constitute the wall bottom 26 of the vent channel 21, separating it from the tubular cavity 20.
- the holes 25 are drilled in this second strip 26, the longitudinal edges of which are then welded in 30, on the inside of the first strip 27.
- the first strip 27 thus completed by the formation of the vent channel 21 is ultimately rewelded, at 31, onto the tube from which it comes.
- the welds 28, 30, 31 can be carried out by depositing a rod of HDPE melted using an air gun hot.
- the sheath element 35 shown in Figures 5 and 6 differs from that previously described by the constitution of its vent channel 41.
- This vent channel 41 is made from a tubular piece of HDPE 47, the section is generally circular.
- This piece 47 which has the orifices 25 distributed on the side inside of its curvature, is welded to another part 52 obtained as previously by making a notch longitudinal on a plastic tube.
- the room 47 forming the vent channel 21 is fixed, using two diametrically opposed weld seams 51 on the edges of the notch in room 52. So, as shown in the Figure 6, the section of the vent channel 41 exceeds some little of the circular section of the tubular cavity 20. As the cross section of the vent channel 41 is reduced, it is possible to make sure that this overshoot does not interfere the introduction of the sheath element 35 into the tube formwork 16.
- vent channel 41 separates tangentially from the wall of the cavity tubular 20, as shown in the right part of the figure 5.
- the sheath element 55 having the vent channel 61 is produced by extrusion, which minimizes the cost of come back.
- the vent channel 61 is formed over the entire length of element 55 inside the cavity cylindrical tubular 20 receiving the strands 17.
- this sheath element 55 is connected to another sheath element 54, devoid of vent channel.
- This other element 54 also extruded, simply presents the cylindrical tubular cavity of same diameter as element 55.
- the junction 56 between the sheath elements 54 and 55 is located approximately at the level of the most top of the cable path in section 9 of the structure comprising the shuttering tube 16 ( Figure 7), so that ensure the capture of the separate components of the grout at this highest point.
- the internal wall of the vent channel 61 is beveled at the end of element 55 to prevent its end 57 obstructs the introduction of strands 17.
- the other end of the vent channel 61 is closed, and bevelled also before making its junction with the adjacent sheath element.
- an orifice 62 is drilled in the wall of the element 55 as shown in FIGS. 7 and 9.
- This orifice 62 is for example tapped to allow mounting of a tube threaded vent not shown.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Cable Accessories (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
Description
- la figure 1 est un schéma de principe illustrant un exemple de précontrainte extérieure ;
- la figure 2 est un schéma en coupe longitudinale d'un élément de gaine selon l'invention installé dans une entretoise déviatrice ;
- les figures 3 et 4 sont des vues en coupe transversale de l'élément de gaine de la figure 2 suivant les plans III-III et IV-IV indiqués sur la figure 2 ;
- la figure 5 est un schéma analogue à celui de la figure 2 montrant un autre élément de gaine selon l'invention ;
- la figure 6 est une vue en coupe transversale de cet autre élément suivant le plan VI-VI indiqué sur la figure 5 ;
- la figure 7 est un schéma analogue à celui des figures 2 et 5 montrant une autre réalisation d'une gaine d'un câble de précontrainte selon l'invention ; et
- les figures 8 et 9 sont des vues en coupe transversale de la gaine de la figure 7 suivant les plans VIII-VIII et IX-IX indiqués sur la figure 7.
Claims (14)
- Elément de gaine pour un câble de précontrainte (10) à installer suivant un trajet sinueux sur un ouvrage de construction (7), le câble comportant, à l'intérieur de la gaine, des torons (17) tendus pour précontraindre l'ouvrage et un matériau de remplissage de la gaine et de protection des torons, ledit élément de gaine (15; 35; 55) étant prévu pour traverser au moins en partie une portion (8,9) de l'ouvrage dans une partie haute dudit trajet sinueux, caractérisé en ce qu'il comporte un canal d'évent (21; 41; 61) parallèle à la cavité tubulaire (20) recevant les torons et de section sensiblement plus petite que ladite cavité tubulaire, et en ce que le canal d'évent est agencé de façon qu'après mise en place de l'élément de gaine dans ladite portion de l'ouvrage, le canal d'évent soit positionné au-dessus de la cavité tubulaire et communique avec la cavité tubulaire dans une première région de l'élément de gaine située à l'intérieur de ladite portion de l'ouvrage et avec l'extérieur de la gaine dans une seconde région de l'élément de gaine située à l'extérieur de ladite portion de l'ouvrage.
- Elément de gaine selon la revendication 1, dans lequel ladite première région de l'élément de gaine, où le canal d'évent (21; 41) communique avec ladite cavité tubulaire (20), s'étend sur une longueur (L1+L2) d'au moins 50 cm.
- Elément de gaine selon la revendication 2, dans lequel la longueur (L1, L2) de ladite première région est d'au moins 50 cm de part et d'autre du point le plus haut de ladite partie haute du trajet sinueux du câble.
- Elément de gaine selon l'une quelconque des revendications 1 à 3, dans lequel le canal d'évent (21; 41) est séparé de ladite cavité tubulaire par une paroi (26) pourvue d'orifices (25) distribués le long de ladite première région de l'élément de gaine (15; 35).
- Elément de gaine selon l'une quelconque des revendications 1 à 4, réalisé par soudage de première et seconde pièces en matière plastique de formes générales tubulaires, la première pièce (26,27; 47) correspondant à la paroi du canal d'évent (21; 41) et la seconde pièce (32; 52) correspondant à la paroi de ladite cavité tubulaire (20) avec une entaille longitudinale aux bords de laquelle est soudée la première pièce.
- Elément de gaine selon la revendication 5, dans lequel ladite première pièce (47) a une section sensiblement circulaire.
- Elément de gaine selon l'une quelconque des revendications 1 à 4, dans lequel la cavité tubulaire (20) a une section circulaire qui inclut la section du canal d'évent (21).
- Elément de gaine selon l'une quelconque des revendications 1 à 7, dans lequel le canal d'évent (21; 41; 61) est séparé de ladite cavité tubulaire (20) par une paroi (26) qui, à ses deux extrémités, se raccorde doucement à la paroi de la cavité tubulaire de manière à ne pas faire obstacle à l'enfilage des torons (17).
- Câble de précontrainte (10) installé suivant un trajet sinueux sur un ouvrage de construction (7) et comportant une gaine formée d'éléments de gaine assemblés bout à bout et, à l'intérieur de la gaine, des torons (17) tendus pour précontraindre l'ouvrage et un matériau de remplissage de la gaine et de protection des torons, la gaine traversant au moins une portion (8,9) de l'ouvrage dans une partie haute dudit trajet sinueux, caractérisé en ce qu'un élément (15; 35; 55) de la gaine, traversant au moins en partie ladite portion (8,9) de l'ouvrage, comporte un canal d'évent (21; 41; 61) parallèle à la cavité tubulaire (20) recevant les torons et de section sensiblement plus petite que ladite cavité tubulaire, et en ce que le canal d'évent est positionné au-dessus de la cavité tubulaire et communique avec la cavité tubulaire dans une première région dudit élément de gaine située à l'intérieur de ladite portion de l'ouvrage et avec l'extérieur de la gaine dans une seconde région dudit élément de gaine située à l'extérieur de ladite portion de l'ouvrage.
- Câble de précontrainte selon la revendication 9, dans lequel le canal d'évent (21; 41; 61) est séparé de ladite cavité tubulaire (20) par une paroi (26) qui, à ses deux extrémités, se raccorde doucement à la paroi de la cavité tubulaire de manière à ne pas faire obstacle à l'enfilage des torons (17).
- Câble de précontrainte selon la revendication 9 ou 10, dans lequel ledit élément de gaine (15; 35) est réalisé par soudage de première et seconde pièces en matière plastique de formes générales tubulaires, la première pièce (26,27; 47) correspondant à la paroi du canal d'évent (21; 41) et la seconde pièce (32; 52) correspondant à la paroi de ladite cavité tubulaire (20) avec une entaille longitudinale aux bords de laquelle est soudée la première pièce.
- Câble de précontrainte selon la revendication 9 ou 10, dans lequel la cavité tubulaire (20) a une section circulaire qui inclut la section du canal d'évent (21).
- Câble de précontrainte selon la revendication 9 ou 10, dans lequel ledit élément de gaine (55) est réalisé par extrusion, le canal d'évent (61) étant formé à l'intérieur de la cavité tubulaire (20) de forme générale cylindrique sur sensiblement toute la longueur dudit élément, dans lequel ledit élément de gaine pourvu du canal d'évent est relié à un autre élément de gaine (54) présentant une cavité tubulaire de forme générale cylindrique de même diamètre mais dépourvu de canal d'évent, la jonction (56) entre ces deux éléments de gaine étant située dans ladite portion (8,9) de l'ouvrage au voisinage du point le plus haut du trajet sinueux du câble dans ladite portion.
- Câble de précontrainte selon la revendication 13, dans lequel la communication du canal d'évent (61) avec l'extérieur de la gaine dans la seconde région dudit élément de gaine (55) s'effectue à travers un orifice (62) taraudé dans une paroi dudit élément de gaine.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9705470 | 1997-05-02 | ||
FR9705470A FR2762864B1 (fr) | 1997-05-02 | 1997-05-02 | Element de gaine pour cable de precontrainte |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0875636A1 true EP0875636A1 (fr) | 1998-11-04 |
EP0875636B1 EP0875636B1 (fr) | 2002-10-09 |
Family
ID=9506556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19980401060 Expired - Lifetime EP0875636B1 (fr) | 1997-05-02 | 1998-04-30 | Câble de précontrainte, et élément de gaine pour un tel câble |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0875636B1 (fr) |
DE (1) | DE69808543D1 (fr) |
ES (1) | ES2184204T3 (fr) |
FR (1) | FR2762864B1 (fr) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19906370A1 (de) * | 1999-02-16 | 2000-09-07 | Polyethylen Specialisten Sr Gm | Hüllrohrsystem für Vorspannstähle in Spannbeton und Herstellungsverfahren hierfür |
WO2000070166A1 (fr) * | 1999-05-14 | 2000-11-23 | Vsl International Ag | Appareil et procede d'ecoulement et de purge |
WO2011116825A1 (fr) | 2010-03-25 | 2011-09-29 | Vsl International Ag | Système de conduites à fluide |
CN109162206A (zh) * | 2018-10-30 | 2019-01-08 | 中国十七冶集团有限公司 | 一种现浇箱梁预应力钢束的施工结构及其施工方法 |
CN109610326A (zh) * | 2018-12-17 | 2019-04-12 | 中国十七冶集团有限公司 | 一种小半径现浇箱梁波纹管定位方法 |
WO2021245359A1 (fr) | 2020-06-05 | 2021-12-09 | Soletanche Freyssinet | Coulis pour l'injection de cables de precontrainte et procede d'installation d'un cable comprenant un tel coulis |
EP4036343A1 (fr) | 2021-02-02 | 2022-08-03 | Soletanche Freyssinet | Gaine pour cable de precontrainte et cable de precontrainte associe |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112049027A (zh) * | 2020-09-04 | 2020-12-08 | 上海市机械施工集团有限公司 | 预应力孔道的补救方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2286257A1 (fr) * | 1974-09-25 | 1976-04-23 | France Etat | Procedes pour injecter ou reinjecter un coulis de ciment dans une gaine de precontrainte |
DE2849690B1 (de) * | 1978-11-16 | 1979-11-29 | Bilfinger Berger Bau | Verfahren zum satten Verfuellen von nur einseitig zugaengigen Hohlraeumen in Spannkanalabschnitten |
FR2603928A1 (fr) * | 1986-09-15 | 1988-03-18 | Sotamec | Procede d'injection de coulis de ciment dans les gaines de cables pour beton precontraint par post-tension |
FR2671573A1 (fr) * | 1991-01-14 | 1992-07-17 | Freyssinet Int & Co | Perfectionnements aux procedes et dispositifs pour eliminer l'eau d'exsudation des gaines de precontrainte verticales. |
DE4106309A1 (de) * | 1991-02-28 | 1992-09-10 | Udo Hofmann | Verfahren zum auswechseln oder zur kontrolle von vorgespannter bewehrung mit verbund |
-
1997
- 1997-05-02 FR FR9705470A patent/FR2762864B1/fr not_active Expired - Lifetime
-
1998
- 1998-04-30 ES ES98401060T patent/ES2184204T3/es not_active Expired - Lifetime
- 1998-04-30 EP EP19980401060 patent/EP0875636B1/fr not_active Expired - Lifetime
- 1998-04-30 DE DE69808543T patent/DE69808543D1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2286257A1 (fr) * | 1974-09-25 | 1976-04-23 | France Etat | Procedes pour injecter ou reinjecter un coulis de ciment dans une gaine de precontrainte |
DE2849690B1 (de) * | 1978-11-16 | 1979-11-29 | Bilfinger Berger Bau | Verfahren zum satten Verfuellen von nur einseitig zugaengigen Hohlraeumen in Spannkanalabschnitten |
FR2603928A1 (fr) * | 1986-09-15 | 1988-03-18 | Sotamec | Procede d'injection de coulis de ciment dans les gaines de cables pour beton precontraint par post-tension |
FR2671573A1 (fr) * | 1991-01-14 | 1992-07-17 | Freyssinet Int & Co | Perfectionnements aux procedes et dispositifs pour eliminer l'eau d'exsudation des gaines de precontrainte verticales. |
DE4106309A1 (de) * | 1991-02-28 | 1992-09-10 | Udo Hofmann | Verfahren zum auswechseln oder zur kontrolle von vorgespannter bewehrung mit verbund |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19906370A1 (de) * | 1999-02-16 | 2000-09-07 | Polyethylen Specialisten Sr Gm | Hüllrohrsystem für Vorspannstähle in Spannbeton und Herstellungsverfahren hierfür |
EP1030001A3 (fr) * | 1999-02-16 | 2001-05-09 | Polyethylen specialisten SR GmbH | Système de gaines pour acier de précontraint et procédé de fabrication |
WO2000070166A1 (fr) * | 1999-05-14 | 2000-11-23 | Vsl International Ag | Appareil et procede d'ecoulement et de purge |
WO2011116825A1 (fr) | 2010-03-25 | 2011-09-29 | Vsl International Ag | Système de conduites à fluide |
CN109162206A (zh) * | 2018-10-30 | 2019-01-08 | 中国十七冶集团有限公司 | 一种现浇箱梁预应力钢束的施工结构及其施工方法 |
CN109610326A (zh) * | 2018-12-17 | 2019-04-12 | 中国十七冶集团有限公司 | 一种小半径现浇箱梁波纹管定位方法 |
WO2021245359A1 (fr) | 2020-06-05 | 2021-12-09 | Soletanche Freyssinet | Coulis pour l'injection de cables de precontrainte et procede d'installation d'un cable comprenant un tel coulis |
FR3111134A1 (fr) | 2020-06-05 | 2021-12-10 | Soletanche Freyssinet | Coulis pour l’injection de cables de precontrainte et procede d’installation d’un cable comprenant un tel coulis |
EP4036343A1 (fr) | 2021-02-02 | 2022-08-03 | Soletanche Freyssinet | Gaine pour cable de precontrainte et cable de precontrainte associe |
FR3119406A1 (fr) | 2021-02-02 | 2022-08-05 | Soletanche Freyssinet | Gaine pour cable de precontrainte et cable de precontrainte associe |
Also Published As
Publication number | Publication date |
---|---|
ES2184204T3 (es) | 2003-04-01 |
EP0875636B1 (fr) | 2002-10-09 |
DE69808543D1 (de) | 2002-11-14 |
FR2762864B1 (fr) | 1999-07-23 |
FR2762864A1 (fr) | 1998-11-06 |
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