EP0414611A1 - Method and arrangement for positioning jacks for prestressing cables in auctures - Google Patents

Method and arrangement for positioning jacks for prestressing cables in auctures Download PDF

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Publication number
EP0414611A1
EP0414611A1 EP90402337A EP90402337A EP0414611A1 EP 0414611 A1 EP0414611 A1 EP 0414611A1 EP 90402337 A EP90402337 A EP 90402337A EP 90402337 A EP90402337 A EP 90402337A EP 0414611 A1 EP0414611 A1 EP 0414611A1
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EP
European Patent Office
Prior art keywords
console
jack
cable
support
tensioning
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Granted
Application number
EP90402337A
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German (de)
French (fr)
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EP0414611B1 (en
Inventor
Jean-Pierre Brisset
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Bouygues SA
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Bouygues SA
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12Mounting of reinforcing inserts; Prestressing
    • E04G21/121Construction of stressing jacks

Definitions

  • the invention relates to the positioning of a jack for tensioning a prestressing cable.
  • the positioning of a jack in the extension of a prestressing cable for the tensioning of this cable is generally carried out in a more or less approximate manner by moving the handling machine which carries the jack and it is long and difficult to '' ensure correct positioning due to the weight of the jack (200 to 1000 kg), difficulties of access and the orientation of the cable outlet which can be arbitrary in space.
  • the present invention aims to solve this positioning problem.
  • one uses, as part fixed to the structure, a part arranged around the cable to be stretched and, for example, one very advantageously uses the anchoring plate or other anchoring body which is normally provided, in a known manner. itself, to facilitate an injection of cement slurry in the cable passage and for the mounting of a cover on the end of the cable after tensioning of the cable.
  • the anchoring plate or other anchoring body which is normally provided, in a known manner. itself, to facilitate an injection of cement slurry in the cable passage and for the mounting of a cover on the end of the cable after tensioning of the cable.
  • the jack is slidably mounted on a secondary support which can be manipulated by means of a machine and this secondary support is able to be fixed to the anchoring piece temporarily, so that the jack is automatically in its operating position simply by mounting the secondary support on the primary support constituted by the anchor.
  • a support is used as a support capable of being suspended from a handling machine, for example a support capable of being suspended from the hook of a bracket or an operating arm.
  • the secondary support has the form of a console which has a front part capable of being applied and fixed to the anchoring part fixed to the structure and a longitudinal rear part perpendicular to the front part and under which the cylinder is supported so that it can slide in the direction of the front part.
  • the device shown in the figures is intended for position a jack V to tension a prestressing cable p coming out of a concrete structure S to be prestressed (Fig. 1).
  • an anchor plate A is embedded in the concrete around the outlet of the cable p and has bolt holes for receiving a cover.
  • this anchoring part is used as a guide and as a primary support for positioning the jack.
  • the anchor A used in this example, is shown in Figure 2 in front view and in Figure 3 in side view.
  • This part, of arcuate shape, is fixed in the concrete of the structure around the outlet of the prestressing cable, in a manner known per se. It has holes 1 for receiving bolts for fixing a cover in a manner known per se.
  • two of these holes 1 ′, 1 ⁇ are used to bolt a sector 2 shown in FIG. 4 to the anchoring part.
  • This sector forms teeth 3, 4 at its ends which are seen in section in FIG. 5. These teeth are intended to retain and fix a console C to which the tensioning jack is suspended.
  • This console C is shown as a whole in FIG. 1 and, in more detail, in the figures.
  • It comprises a front part and a rear part which, in this example, are substantially perpendicular.
  • the front part is a part 5 of arcuate shape capable of being disposed against the anchoring part A, around the cable outlet, and it has an upper edge shaped with a flange 6 (FIG. 7) able to be retained by the teeth 3, 4 of sector 2.
  • Figure 8 shows the front part of the console in place on the anchor.
  • the rear part of the console is main constituted by a rail 7 fixed to the front part by an appropriate elbow 8 of any structure in itself.
  • This rail is for example a profile in the form of 1, the top of which is provided with a ring 9 allowing the console to be hooked to the hook 10 of a gantry 11 of a crane or other handling machine (FIG. 1).
  • the lower branch of the rail constitutes a raceway for the rollers 12 of a carriage 13 to which the tensioning jack V is fixed, and a jack 14 controls the movement of the carriage along the rail (FIGS. 1, 8, 9 ).
  • the structure of the carriage is arbitrary. In the example shown, this carriage comprises a sheath 15 in which the tensioning cylinder V is mounted. Means may be provided for adjusting the position of the jack with respect to the carriage and / or of the carriage with respect to the rail, so as to center the jack with respect to the cable to be stretched.
  • Figure 10 shows the tensioning cylinder in the service position on the cable.
  • the console equipped with said cylinder is suspended from a handling machine which allows the console to be approached from the anchoring part until the front part of the console is hooked, by a movement from the top below, on the anchor. You can then move the jack on the console towards the cable to grab the cable and pull it. Reverse operations allow the cylinder to be removed.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Bridges Or Land Bridges (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Ropes Or Cables (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

According to the invention, the arrangement comprises a primary support (A) fixed to the structure (5) and a secondary support (C) which can be manipulated by means of a machine, these two supports comprising means which interact for fastening the secondary support (C) onto the primary support (A), and the secondary support (C) comprises means for carrying the tensioning jack (V). According to the method of the invention, a part is fixed to the structure to be prestressed, facing the use position of the jack, and a support capable of carrying the jack in the suitable use position is added to this part. <IMAGE>

Description

L'invention concerne le positionnement d'un vérin pour la mise en tension d'un câble de précontrainte.The invention relates to the positioning of a jack for tensioning a prestressing cable.

Le positionnement d'un vérin dans le prolongement d'un câble de précontrainte pour la mise en tension de ce câble est généralement réalisé de façon plus ou moins approximative en déplaçant l'engin de manutention qui porte le vérin et il est long et difficile d'assurer un positionnement correct en raison du poids du vérin (200 à 1000 kg), des difficultés d'accès et de l'orientation de la sortie du câble qui peut être quelconque dans l'espace.The positioning of a jack in the extension of a prestressing cable for the tensioning of this cable is generally carried out in a more or less approximate manner by moving the handling machine which carries the jack and it is long and difficult to '' ensure correct positioning due to the weight of the jack (200 to 1000 kg), difficulties of access and the orientation of the cable outlet which can be arbitrary in space.

La présente invention vise à résoudre ce problème de positionnement.The present invention aims to solve this positioning problem.

On y parvient, selon l'invention, en fixant une pièce à la structure à précontraindre en sorte que cette pièce soit en vis-à-vis de la position de service du vérin et en rapportant sur cette pièce, de façon provisoire, un support apte à porter le vérin dans la position de service adéquateThis is achieved, according to the invention, by attaching a part to the structure to be prestressed so that this part is opposite the operating position of the jack and by temporarily bringing a support to this part. able to carry the cylinder in the correct service position

De préférence, on utilise, comme pièce fixée à la structure, une pièce disposée autour du câble à tendre et, par exemple, on utilise très avantageusement la plaque d'ancrage ou autre corps d'ancrage qui est normalement prévu, de façon connue en soi, pour faciliter une injection de coulis de ciment dans le passage du câble et pour le montage d'un capot sur l'extrémité du câble après mise en tension du câble.Preferably, one uses, as part fixed to the structure, a part arranged around the cable to be stretched and, for example, one very advantageously uses the anchoring plate or other anchoring body which is normally provided, in a known manner. itself, to facilitate an injection of cement slurry in the cable passage and for the mounting of a cover on the end of the cable after tensioning of the cable.

De façon préférée, selon l'invention, le vérin est monté à coulisse sur un support secondaire manipulable au moyen d'un engin et ce support secondaire est apte à être fixé sur la pièce d'ancrage de façon provisoire, en sorte que le vérin se trouve automatiquement dans sa position de service du seul fait du montage du support secondaire sur le support primaire constitué par la pièce d'ancrage.Preferably, according to the invention, the jack is slidably mounted on a secondary support which can be manipulated by means of a machine and this secondary support is able to be fixed to the anchoring piece temporarily, so that the jack is automatically in its operating position simply by mounting the secondary support on the primary support constituted by the anchor.

De préférence, on utilise comme support un support apte à être suspendu à un engin de manutention, par exemple un support apte à être suspendu au crochet d'une potence ou d'un bras de manoeuvre.Preferably, a support is used as a support capable of being suspended from a handling machine, for example a support capable of being suspended from the hook of a bracket or an operating arm.

Dans une réalisation avantageuse, le support secondaire a la forme d'une console qui présente une partie antérieure apte à être appliquée et fixée sur la pièce d'ancrage fixée à la structure et une partie postérieure longitudinale perpendiculaire à la partie antérieure et sous laquelle le vérin est supporté de façon à pouvoir coulisser en direction de la partie antérieure.In an advantageous embodiment, the secondary support has the form of a console which has a front part capable of being applied and fixed to the anchoring part fixed to the structure and a longitudinal rear part perpendicular to the front part and under which the cylinder is supported so that it can slide in the direction of the front part.

On décrira ci-après une réalisation conforme à la présente invention et qui présente encore d'autres particularités faisant également partie de l'invention, en référence aux figures jointes sur lesquelles :

  • . la figure 1 est une vue schématique d'un dispositif conforme à l'invention ;
  • . la figure 2 est une vue de face d'une pièce d'ancrage servant au dispositif ;
  • . la figure 3 est une vue latérale d'une dent de la pièce d'ancrage ;
  • . la figure 4 est une vue de face d'un secteur à rapporter sur la pièce d'ancrage ;
  • . la figure 5 est une coupe d'une extrémité du secteur de la figure 4 ;
  • . la figure 6 est une vue frontale de la partie antérieure d'une console de support du vérin de mise en tension ;
  • . la figure 7 est une coupe du bord supérieur de la partie antérieure de la console ;
  • . la figure 8 est une vue longitudinale avec coupe partielle de la console en place sur la pièce d'ancrage ;
  • . la figure 9 est une coupe schématique par un plan vertical transversal de la partie postérieure de la console, et
  • . la figure 10 est une vue logitudinale avec coupe partielle de la console en place sur la pièce d'ancrage, le vérin de mise en tension étant en position de service.
An embodiment in accordance with the present invention will be described below, which also has other features which are also part of the invention, with reference to the appended figures in which:
  • . Figure 1 is a schematic view of a device according to the invention;
  • . Figure 2 is a front view of an anchor for the device;
  • . Figure 3 is a side view of a tooth of the anchor;
  • . Figure 4 is a front view of a sector to be attached to the anchor;
  • . Figure 5 is a section through one end of the sector of Figure 4;
  • . FIG. 6 is a front view of the front part of a support console for the tensioning jack;
  • . Figure 7 is a section of the upper edge of the front part of the console;
  • . Figure 8 is a longitudinal view with partial section of the console in place on the anchor;
  • . FIG. 9 is a diagrammatic section through a vertical transverse plane of the rear part of the console, and
  • . Figure 10 is a logitudinal view with partial section of the console in place on the anchor, the tensioning cylinder being in the service position.

Le dispositif représenté sur les figures est destiné à positionner un vérin V pour tendre un câble de précontrainte p sortant d'une structure S en béton à précontraindre (Fig. 1).The device shown in the figures is intended for position a jack V to tension a prestressing cable p coming out of a concrete structure S to be prestressed (Fig. 1).

De façon en soi connue, une plaque d'ancrage A est noyée dans le béton autour de la sortie du câble p et présente des trous de boulonnage pour recevoir un capot.In known manner, an anchor plate A is embedded in the concrete around the outlet of the cable p and has bolt holes for receiving a cover.

Selon l'invention, on utilise cette pièce d'ancrage comme guide et comme support primaire pour positionner le vérin.According to the invention, this anchoring part is used as a guide and as a primary support for positioning the jack.

Pour ce faire, on utilise certains des trous de boulonnage pour fixer provisoirement sur la pièce d'ancrage une pièce de retenue apte au montage d'une console ou, en variante, on utilise une pièce d'ancrage venue de fabrication avec une pièce de retenue permanente.To do this, we use some of the bolt holes to temporarily fix on the anchoring piece a retaining piece suitable for mounting a console or, alternatively, we use an anchoring piece from manufacturing with a piece of permanent detention.

La pièce d'ancrage A, utilisée dans cet exemple, est représentée sur la figure 2 en vue de l'avant et sur la figure 3 en vue latérale. Cette pièce, de forme arquée, est fixée dans le béton de l'ouvrage autour de la sortie du câble de précontrainte, de façon connue en soi. Elle présente des trous 1 pour recevoir des boulons de fixation d'un capot de façon connue en soi.The anchor A, used in this example, is shown in Figure 2 in front view and in Figure 3 in side view. This part, of arcuate shape, is fixed in the concrete of the structure around the outlet of the prestressing cable, in a manner known per se. It has holes 1 for receiving bolts for fixing a cover in a manner known per se.

Selon l'invention, on utilise deux de ces trous 1′, 1˝ pour boulonner sur la pièce d'ancrage un secteur 2 représenté sur la figure 4. Ce secteur forme à ses extrémités des dents 3, 4 que l'on voit en coupe sur la figure 5. Ces dents sont destinées à retenir et fixer une console C à laquelle le vérin de mise en tension est suspendu.According to the invention, two of these holes 1 ′, 1˝ are used to bolt a sector 2 shown in FIG. 4 to the anchoring part. This sector forms teeth 3, 4 at its ends which are seen in section in FIG. 5. These teeth are intended to retain and fix a console C to which the tensioning jack is suspended.

Cette console C est représentée dans son ensemble sur la figure 1 et, plus en détails, sur les figures.This console C is shown as a whole in FIG. 1 and, in more detail, in the figures.

Elle comprend une partie antérieure et une partie postérieure qui, dans cet exemple, sont sensiblement perpendiculaires.It comprises a front part and a rear part which, in this example, are substantially perpendicular.

La partie antérieure est une pièce 5 de forme arquée apte à être disposée contre la pièce d'ancrage A, autour de la sortie du câble, et elle présente un bord supérieur conformé avec un rebord 6 (figure 7) apte à être retenu par les dents 3, 4 du secteur 2.The front part is a part 5 of arcuate shape capable of being disposed against the anchoring part A, around the cable outlet, and it has an upper edge shaped with a flange 6 (FIG. 7) able to be retained by the teeth 3, 4 of sector 2.

La figure 8 montre la partie antérieure de la console en place sur la pièce d'ancrage.Figure 8 shows the front part of the console in place on the anchor.

La partie postérieure de la console est principale constituée par un rail 7 fixé à la partie antérieure par un coude approprié 8 de structure en soi quelconque.The rear part of the console is main constituted by a rail 7 fixed to the front part by an appropriate elbow 8 of any structure in itself.

Ce rail est par exemple un profilé en forme de 1 dont le sommet est muni d'un anneau 9 permettant d'accrocher la console au crochet 10 d'un portique 11 de grue ou autre engin de manutention (figure 1). La branche inférieure du rail constitue un chemin de roulement pour les galets 12 d'un chariot 13 auquel est fixé le vérin V de mise en tension, et un vérin 14 commande le déplacement du chariot le long du rail (figures 1, 8, 9). La structure du chariot est quelconque. Dans l'exemple représenté, ce chariot comporte un fourreau 15 dans lequel le vérin V de mise en tension est monté. Des moyens peuvent être prévus pour régler la position du vérin par rapport au chariot et/ou du chariot par rapport au rail, de façon à centrer le vérin par rapport au câble à tendre.This rail is for example a profile in the form of 1, the top of which is provided with a ring 9 allowing the console to be hooked to the hook 10 of a gantry 11 of a crane or other handling machine (FIG. 1). The lower branch of the rail constitutes a raceway for the rollers 12 of a carriage 13 to which the tensioning jack V is fixed, and a jack 14 controls the movement of the carriage along the rail (FIGS. 1, 8, 9 ). The structure of the carriage is arbitrary. In the example shown, this carriage comprises a sheath 15 in which the tensioning cylinder V is mounted. Means may be provided for adjusting the position of the jack with respect to the carriage and / or of the carriage with respect to the rail, so as to center the jack with respect to the cable to be stretched.

La figure 10 montre le vérin de mise en tension en position de service sur le câble.Figure 10 shows the tensioning cylinder in the service position on the cable.

Pour positionner le vérin de mise en tension, on suspend la console équipée dudit vérin à un engin de manutention qui permet d'approcher la console de la pièce d'ancrage jusqu'à accrocher la partie antérieure de la console, par un mouvement de haut en bas, sur la pièce d'ancrage. On peut ensuite déplacer le vérin sur la console en direction du câble pour saisir le câble et le tirer. Des opérations inverses permettent de retirer le vérin.To position the tensioning cylinder, the console equipped with said cylinder is suspended from a handling machine which allows the console to be approached from the anchoring part until the front part of the console is hooked, by a movement from the top below, on the anchor. You can then move the jack on the console towards the cable to grab the cable and pull it. Reverse operations allow the cylinder to be removed.

L'invention n'est pas limitée à la réalisation qui a été décrite.The invention is not limited to the embodiment which has been described.

Claims (20)

1. Procédé pour positionner un vérin de mise en tension d'un câble de précontrainte d'une structure, dans lequel on fixe une pièce à la structure à précontraindre, en vis-à-vis de la position de service du vérin, et on rapporte sur cette pièce un support apte à porter le vérin dans la position de service adéquate.1. Method for positioning a jack for tensioning a prestressing cable of a structure, in which a part is fixed to the structure to be prestressed, opposite the operating position of the jack, and attaches to this part a support capable of bringing the jack into the appropriate service position. 2. Procédé selon la revendication 1, caractérisé en ce qu'on utilise, comme pièce fixée à la structure, une pièce disposée autour du câble à tendre.2. Method according to claim 1, characterized in that one uses, as part fixed to the structure, a part arranged around the cable to be stretched. 3. Procédé selon la revendication 2, caractérisé en ce qu'on utilise comme pièce fixée à la structure, la plaque ou autre corps d'ancrage normalement prévu pour monter un capot sur l'extrémité du câble après mise en tension du câble.3. Method according to claim 2, characterized in that one uses as part attached to the structure, the plate or other anchoring body normally provided for mounting a cover on the end of the cable after tensioning of the cable. 4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce qu'on monte le vérin à coulisse sur une console manipulable au moyen d'un engin de manutention et apte à être accrochée sur ladite pièce fixée à la structure.4. Method according to one of claims 1 to 3, characterized in that the slide cylinder is mounted on a console which can be manipulated by means of a handling machine and capable of being hung on said part fixed to the structure. 5. Procédé selon la revendication 4, caractérisé en ce qu'on utilise une console apte à être suspendue à l'engin de manutention.5. Method according to claim 4, characterized in that a console capable of being suspended from the handling machine is used. 6. Dispositif pour positionner un vérin de mise en tension d'un câble de précontrainte d'une structure, ce dispositif comportant un support primaire (A) fixé à la structure (5) et un support secondaire (C) manipulable au moyen d'un engin, ces deux supports comportant des moyens coopérant pour l'accrochage du support secondaire sur le support primaire, et le support secondaire comportant des moyens pour porter le vérin de mise en tension (V).6. Device for positioning a jack for tensioning a prestressing cable of a structure, this device comprising a primary support (A) fixed to the structure (5) and a secondary support (C) which can be manipulated by means of a machine, these two supports comprising means cooperating for the attachment of the secondary support to the primary support, and the secondary support comprising means for carrying the tensioning jack (V). 7. Dispositif selon la revendication 6, caractérisé en ce que ledit support primaire (A) est une pièce ancrée à la structure autour du câble de précontrainte (P).7. Device according to claim 6, characterized in that said primary support (A) is a part anchored to the structure around the prestressing cable (P). 8. Dispositif selon la revendication 6 ou 7, caractérisé en ce qu'il comporte des dents (3,4) rapportées sur le support primaire ou venues de fabrication avec lui pour retenir le support secondaire (C).8. Device according to claim 6 or 7, characterized in that it comprises teeth (3,4) attached to the primary support or come with him to retain the secondary support (C). 9. Dispositif selon la revendication 8, caractérisé en ce que lesdites dents (3, 4) sont portées par une pièce arquée (2) boulonnée sur le support primaire.9. Device according to claim 8, characterized in that said teeth (3, 4) are carried by an arcuate part (2) bolted to the primary support. 10. Dispositif selon l'une des revendications 6 à 9, caractérisé en ce que ledit support secondaire est une console (C).10. Device according to one of claims 6 to 9, characterized in that said secondary support is a console (C). 11. Dispositif selon la revendication 10, caractérisé en ce que ladite console (C) comprend une partie antérieure (5) apte à être accrochée audit support primaire.11. Device according to claim 10, characterized in that said console (C) comprises a front part (5) capable of being hooked to said primary support. 12. Dispositif selon la revendication 11? caractérisé en ce que ladite partie antérieure (5) est une pièce de forme arquée apte à être disposée autour du câble (P).12. Device according to claim 11? characterized in that said front part (5) is an arcuate piece able to be arranged around the cable (P). 13. Dispositif selon la revendication 8 ou 9 et la revendication 11 ou 12, caractérisé en ce que ladite partie antérieure (5) présente un rebord (6) apte à être retenu par lesdites dents.13. Device according to claim 8 or 9 and claim 11 or 12, characterized in that said front part (5) has a flange (6) capable of being retained by said teeth. 14. Dispositif selon l'une des revendications 10 à 13, caractérisé en ce que la console (C) comporte une partie postérieure longitudinale (7) le long de laquelle peut se déplacer un chariot (13) qui porte le vérin (V) de mise en tension.14. Device according to one of claims 10 to 13, characterized in that the console (C) comprises a longitudinal rear part (7) along which can move a carriage (13) which carries the cylinder (V) of tensioning. 15. Dispositif selon la revendication 14? caractérisé en ce que ladite partie postérieure comprend un rail (7) qui constitue un chemin de roulement pour ledit chariot (13).15. Device according to claim 14? characterized in that said rear part comprises a rail (7) which constitutes a raceway for said carriage (13). 16. Dispositif selon la revendication 14 ou 15, caractérisé en ce que ladite partie postérieure (7) est sensiblement perpendiculaire à la partie antérieure (5) de la console.16. Device according to claim 14 or 15, characterized in that said rear part (7) is substantially perpendicular to the front part (5) of the console. 17. Dispositif selon l'une des revendications 14 à 16, caractérisé en ce que ladite console porte également un vérin (14) qui commande le déplacement dudit chariot (13).17. Device according to one of claims 14 to 16, characterized in that said console also carries a jack (14) which controls the movement of said carriage (13). 18. Dispositif selon l'une des revendications 10 à 17, caractérisé en ce que ladite console comporte un moyen de suspension (9) permettant de la suspendre à un engin de manutention.18. Device according to one of claims 10 to 17, characterized in that said console comprises a suspension means (9) for suspending it from a handling machine. 19. Dispositif selon la revendication 18, caractérisé en ce que ledit moyen de suspension (9) est fixé à ladite partie postérieure de la console.19. Device according to claim 18, characterized in that said suspension means (9) is fixed to said rear part of the console. 20. Dispositif selon la revendication 19, caractérisé en ce que ledit moyen de suspension (9) est un anneau.20. Device according to claim 19, characterized in that said suspension means (9) is a ring.
EP90402337A 1989-08-25 1990-08-22 Method and arrangement for positioning jacks for prestressing cables in auctures Expired - Lifetime EP0414611B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8911259 1989-08-25
FR8911259A FR2651266B1 (en) 1989-08-25 1989-08-25 METHOD AND DEVICE FOR POSITIONING A TENSIONER OF A TENSIONING OF A PRESSURE CABLE OF A STRUCTURE.

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EP0414611A1 true EP0414611A1 (en) 1991-02-27
EP0414611B1 EP0414611B1 (en) 1993-04-14

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EP90402337A Expired - Lifetime EP0414611B1 (en) 1989-08-25 1990-08-22 Method and arrangement for positioning jacks for prestressing cables in auctures

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EP (1) EP0414611B1 (en)
AT (1) ATE88234T1 (en)
DE (1) DE69001339T2 (en)
DK (1) DK0414611T3 (en)
ES (1) ES2040084T3 (en)
FR (1) FR2651266B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333819A (en) * 1964-11-17 1967-08-01 Brandestini Antonio Wire tensioning jack having alignment means
US3588045A (en) * 1969-01-31 1971-06-28 Allan H Stubbs Prestressing apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333819A (en) * 1964-11-17 1967-08-01 Brandestini Antonio Wire tensioning jack having alignment means
US3588045A (en) * 1969-01-31 1971-06-28 Allan H Stubbs Prestressing apparatus

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Publication number Publication date
FR2651266A1 (en) 1991-03-01
DE69001339T2 (en) 1993-07-29
FR2651266B1 (en) 1991-12-13
ES2040084T3 (en) 1993-10-01
DK0414611T3 (en) 1993-05-17
EP0414611B1 (en) 1993-04-14
ATE88234T1 (en) 1993-04-15
DE69001339D1 (en) 1993-05-19

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