EP0073170B1 - Arched connecting element between two rectilinear portions of a tensional cable - Google Patents

Arched connecting element between two rectilinear portions of a tensional cable Download PDF

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Publication number
EP0073170B1
EP0073170B1 EP82401551A EP82401551A EP0073170B1 EP 0073170 B1 EP0073170 B1 EP 0073170B1 EP 82401551 A EP82401551 A EP 82401551A EP 82401551 A EP82401551 A EP 82401551A EP 0073170 B1 EP0073170 B1 EP 0073170B1
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EP
European Patent Office
Prior art keywords
cable
strands
stretched
portions
segment
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
Application number
EP82401551A
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German (de)
French (fr)
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EP0073170A3 (en
EP0073170A2 (en
Inventor
Antonio Dinis
Carlos De La Fuente
Paul Mondorf
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Freyssinet International STUP SA
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Freyssinet International STUP SA
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Priority to AT82401551T priority Critical patent/ATE23596T1/en
Publication of EP0073170A2 publication Critical patent/EP0073170A2/en
Publication of EP0073170A3 publication Critical patent/EP0073170A3/en
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Expired legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
    • 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

Definitions

  • the present invention relates to a curved connection device between two rectilinear portions of a tensioned cable, device ensuring the continuity of the tension in the whole of the cable.
  • GB-A-897 351 describes a device allowing the deflection of a cable stretched from a straight portion to a curved portion comprising a cable segment whose strands curved according to the desired curvature, are separated from each other and stretched .
  • DE-A-1 658 596 describes a device for connecting between two straight portions of a tensioned cable, this device passing through a massive structure of work and transmitting the tension from one of the cable portions to the other, but in one embodiment ( Figure 4), it provides a continuous cable which passes through the massive structure of the structure.
  • any relative movement of a cable strand relative to a solid with which it is in contact causes friction and, in the long run, a deterioration of this strand, resulting in a great reduction in the resistance to fatigue.
  • DE-A-1 658 596 provides for transmitting the tension from one of the cables to the other via a piece of steel - to which are fixed the heads - of the two cables.
  • the forces are transmitted directly from one cable to the other, without any reserve capable of compensating for the excess fatigue imposed on the cables.
  • the device according to the invention aims not only to prevent any deterioration by friction of the connection cable as provided for in GB-A-897 351 but to provide a means ensuring a reserve of prestressing, limiting the fatigue of the cable, which does not provide neither of the two patents cited above.
  • the device for connecting between two straight portions of a tensioned cable, device passing through a massive structure of work, and intended to transmit the tension from one of the cable portions to the other by a cable segment of which the strands, curved according to the desired curvature, are separated from each other and stretched is characterized by the fact that the cable segment is integrated in a prefabricated and resistant tubular element which is incorporated in the massive structure and whose free spaces are filled, at least in part, with a material capable of hardening, in principle a cement mortar, said tubular element and the hardened material being prestressed by the stretched strands of the cable segment.
  • the strands of the cable segment are free relative to the tubular element and are anchored after tensioning against the end faces of said tubular element.
  • the tubular envelope may or may not be adherent to the structure in which it is positioned.
  • the curvilinear strands are anchored against the entry and exit faces of the prefabricated tubular element can be ensured by the connecting members with the strands of the rectilinear parts of the cable, according to an arrangement of the “prestressing armature coupler” type. •.
  • a pylon A partially shown and intended to support a bridge by means of shrouds, comprises a superposition of curved channels B of which only one is shown. Each of these channels encloses a connection device C intended to ensure the continuity of the voltage between two straight and symmetrical portions of tensioned cable E 1 and E 2 each of which in this case is a deck guy.
  • the device C comprises a curved tube 1 inside which are arranged, in an organized manner, strands of cable 2 held in this arrangement (at least) by a succession of separators 3, which spacers 4 can, if necessary, hold in place at a predetermined distance.
  • the strands 2 for example strands or wires, can each be threaded into a tube 5, the set of tubes 5 being maintained in an arrangement organized by ligatures or preferably by the large diameter wrap tube 1.
  • the free spaces inside the tube 1 are filled with a solidifiable material 6 injected into this tube in the liquid state and which, solidified, is capable of elastic compression.
  • This material is advantageously a cement mortar.
  • the strands 2 are anchored in the blocks 8, in this case each formed from three thick disks 81, 82, 83 each of which comprises conical cavities 9 for anchoring one third of the number of strands 2; the discs, in which strands are not anchored, are crossed by them in cylindrical holes. It is known that such an arrangement of individual anchors reduces the diameter of the anchoring block by further limiting the deflection of the strands.
  • the set of three discs 81, 82, 83 is externally threaded to receive a sleeve 10 ensuring the connection with a similar anchoring block 8A which terminates each of the two rectilinear portions of cables stretched to be connected.
  • the assembly thus produced is equipped with filling nozzles and vents (not shown); it may further include seals 7 to allow it to be filled under pressure with the curable liquid material, intended to be compressed with the rest of the contents of the tube by the tensioning of the strands 2.
  • the strands 2 being bare, stretched and held in place in the tube 1 (suitably shaped) by separators 3, practically adjacent so as to have a regular curvature, to pour cement mortar in this tube so that that this mortar, once hardened, is prestressed, as well as the tube 1, by the strands 2 stretched released from their tensioning device.
  • the material 6 is injected before tensioning the strands and anchoring in the blocks 8.
  • the total tension imposed on the strands must in any case be at least equal, and of preferably greater than the tension of the cable portions E, E 2 so that in service a prestress remains in the device.
  • connection device thus prepared can be simply applied against a curved support formed in a structure, for example a channel-shaped opening formed in a pylon, for the connection of two shrouds, or placed at the top of said pylon ( Figure 5) .
  • the tube 1 can be provided in its central part with welded rings 12 (or other reliefs) to improve its connection with the concrete mass 13 of the pylon 17. Towards the ends, the tube 1 is separated from the concrete 13 by a layer of grease or by elastomer sleeves 14.
  • the tube 1 and its content can vary in length (by varying the tension of the strands and the compression of the tube and its content) without affecting the pylon A.
  • the strands 2 are arranged in a helix to compensate for their differences in length due to the curvature of the tube 1, in this case of rectangular section.
  • the tension of the strands 2 and their anchoring are carried out after setting and hardening of the concrete which fills the tube 1 and surrounds it.
  • the invention applies to all taut cables having inflections and subjected to uninterrupted tension. It is especially suitable for continuous pairs of stay cables for hanging a structure from one or more pylons.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Cable Accessories (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Communication Cables (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Flexible Shafts (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Ropes Or Cables (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The invention has for its object a device for connection between two rectilinear portions of a stretched cable, said device passing through a massive constructive work. According to the invention said device transmits the tension from one of the portions of cable to the other by a segment of cable of which the strands, curved along the desired incurvation, are separated from one another and stretched, with a total tension force at least equal to that of the more stretched of the two portions of cable, to ensure precompression of the portion of massive structure which these strands traverse.

Description

La présente invention concerne un dispositif de raccordement incurvé entre deux portions rectilignes d'un câble tendu, dispositif assurant la continuité de la tension dans l'ensemble du câble.The present invention relates to a curved connection device between two rectilinear portions of a tensioned cable, device ensuring the continuity of the tension in the whole of the cable.

On sait que le tracé optimal d'un câble de précontrainte ou de haubanage comporte fré- quemment des portions rectilignes de part et d'autre d'un changement de direction. Pour simplifier la réalisation des ouvrages, il est avantageux d'assurer la continuité de la tension tout le long du tracé plutôt que d'assurer, par des moyens de renforcement, la liaison de câbles rectilignes partiels croisés au droit du changement de direction. Une telle continuité est particulièrement souhaitable dans le cas des haubans porteurs d'un ouvrage suspendu à un pylône, les deux haubans symétriques d'un même couple s'équilibrant ainsi directement au droit de leur appui sur le pylône.We know that the optimal layout of a prestressing or guying cable frequently includes rectilinear portions on either side of a change of direction. To simplify the realization of the works, it is advantageous to ensure the continuity of the tension along the course rather than to ensure, by reinforcing means, the connection of partial rectilinear cables crossed at the right of the change of direction. Such continuity is particularly desirable in the case of shrouds carrying a structure suspended from a pylon, the two symmetrical shrouds of the same couple thus balancing directly in line with their support on the pylon.

Le GB-A-897 351 décrit un dispositif permettant la déviation d'un câble tendu d'une portion rectiligne à une portion courbe comportant un segment de câble dont les brins courbés suivant l'incurvation désirée, sont séparés les uns des autres et tendus.GB-A-897 351 describes a device allowing the deflection of a cable stretched from a straight portion to a curved portion comprising a cable segment whose strands curved according to the desired curvature, are separated from each other and stretched .

Le DE-A-1 658 596 décrit un dispositif de raccordement entre deux portions rectilignes d'un câble tendu, ce dispositif traversant une structure massive d'ouvrage et transmettant la tension d'une des portions de câbles à l'autre, mais dans une réalisation (figure 4), il prévoit un câble continu qui traverse la structure massive d'ouvrage.DE-A-1 658 596 describes a device for connecting between two straight portions of a tensioned cable, this device passing through a massive structure of work and transmitting the tension from one of the cable portions to the other, but in one embodiment (Figure 4), it provides a continuous cable which passes through the massive structure of the structure.

Or, si un câble continu est ainsi mis en oeuvre, ses brins (fils, barres, torons) sont, par la tension du câble, pressés les uns contre les autres et contre la portion convexe de l'appui assurant la déviation du câble, de sorte que des variations, même faibles, de la tension entraînent des frottements réciproques de ces brins de câbles.Now, if a continuous cable is thus implemented, its strands (wires, bars, strands) are, by the tension of the cable, pressed against each other and against the convex portion of the support ensuring the deflection of the cable, so that variations, even small, in the voltage cause reciprocal friction of these strands of cables.

Plus généralement, tout déplacement relatif d'un brin de câble par rapport à un solide avec lequel il est en contact provoque un frottement et, à la longue, une détérioration de ce brin, entraînant une forte réduction de la résistance à la fatigue.More generally, any relative movement of a cable strand relative to a solid with which it is in contact causes friction and, in the long run, a deterioration of this strand, resulting in a great reduction in the resistance to fatigue.

Dans une autre forme de réalisation (figures 5 et 6), le DE-A-1 658 596 prévoit de transmettre la tension d'un des câbles à l'autre par l'intermédiaire d'une pièce en acier - à laquelle sont fixées les têtes - des deux câbles.In another embodiment (Figures 5 and 6), DE-A-1 658 596 provides for transmitting the tension from one of the cables to the other via a piece of steel - to which are fixed the heads - of the two cables.

Dans une telle réalisation, les efforts sont transmis directement d'un câble à l'autre, sans aucune réserve susceptible de compenser les excès de fatigue imposés aux câbles.In such an embodiment, the forces are transmitted directly from one cable to the other, without any reserve capable of compensating for the excess fatigue imposed on the cables.

Le dispositif selon l'invention vise non seulement à empêcher toute détérioration par frottement du câble de raccordement comme le prévoit GB-A-897 351 mais à fournir un moyen assurant une réserve de précontrainte, limitant la fatigue du câble, ce que n'assurent aucun des deux brevets cités ci-dessus.The device according to the invention aims not only to prevent any deterioration by friction of the connection cable as provided for in GB-A-897 351 but to provide a means ensuring a reserve of prestressing, limiting the fatigue of the cable, which does not provide neither of the two patents cited above.

A cet effet, le dispositif de raccordement entre deux portions rectilignes d'un câble tendu, dispositif traversant une structure massive d'ouvrage, et destiné à transmettre la tension d'une des portions de câble à l'autre par un segment de câble dont les brins, courbés suivant l'incurvation désirée, sont séparés les uns des autres et tendus est caractérisé par le fait que le segment de câble est intégré dans un élément tubulaire préfabriqué et résistant qui s'incorpore à la structure massive et dont les espaces libres sont remplis, au moins en partie, par une matière susceptible de durcir, en principe un mortier de ciment, ledit élément tubulaire et la matière durcie étant précontraints par les brins tendus du segment de câble.To this end, the device for connecting between two straight portions of a tensioned cable, device passing through a massive structure of work, and intended to transmit the tension from one of the cable portions to the other by a cable segment of which the strands, curved according to the desired curvature, are separated from each other and stretched is characterized by the fact that the cable segment is integrated in a prefabricated and resistant tubular element which is incorporated in the massive structure and whose free spaces are filled, at least in part, with a material capable of hardening, in principle a cement mortar, said tubular element and the hardened material being prestressed by the stretched strands of the cable segment.

Dans une forme de réalisation les brins du segment de câble sont libres par rapport à l'élément tubulaire et sont ancrés après mise en tension contre les faces extrêmes dudit élément tubulaire.In one embodiment, the strands of the cable segment are free relative to the tubular element and are anchored after tensioning against the end faces of said tubular element.

Ainsi, on évite tout déplacement relatif des brins par rapport aux corps solides qui sont à leur contact. L'enveloppe tubulaire peut être, ou non, adhérente à la structure dans laquelle elle est positionnée.This avoids any relative displacement of the strands relative to the solid bodies which are in contact with them. The tubular envelope may or may not be adherent to the structure in which it is positioned.

En l'absence d'adhérence, si les variations de tension du câble sont fortes et si le volume et la masse de cet élément de structure sont réduits, un déplacement relatif des extrémités de l'enveloppe tubulaire par rapport au reste de la structure peut se produire. On peut pallier les effets de ce déplacement en aménageant localement des surfaces de glissement ou, mieux grâce à une liaison élastique déformable (par exemple une ou plusieurs couches d'élastomère) entre les extrémités de cet élément et le reste de la structure.In the absence of adhesion, if the cable tension variations are strong and if the volume and the mass of this structural element are reduced, a relative displacement of the ends of the tubular envelope relative to the rest of the structure can happen. The effects of this displacement can be mitigated by locally fitting sliding surfaces or, better thanks to a deformable elastic connection (for example one or more layers of elastomer) between the ends of this element and the rest of the structure.

L'ancrage des brins curvilignes contre les faces d'entrée et de sortie de l'élément tubulaire préfabriqué peut être assuré par les organes de raccordement avec les brins des parties rectilignes du câble, selon une disposition du type « coupleur d'armature de précontrainte •.The curvilinear strands are anchored against the entry and exit faces of the prefabricated tubular element can be ensured by the connecting members with the strands of the rectilinear parts of the cable, according to an arrangement of the “prestressing armature coupler” type. •.

Les dessins annexés montrent comment l'invention peut être mise en oeuvre.The accompanying drawings show how the invention can be implemented.

  • La figure 1 est une coupe verticale d'un dispositif de raccordement selon l'invention.Figure 1 is a vertical section of a connection device according to the invention.
  • La figure 2 est une coupe axiale agrandie d'une des extrémités de ce dispositif.Figure 2 is an enlarged axial section of one end of this device.
  • La figure 3 est une coupe transversale de réalisation d'un tel dispositif.Figure 3 is a cross section of an embodiment of such a device.
  • La figure 4 illustre, en perspective schématique, une variante possible de réalisation.FIG. 4 illustrates, in schematic perspective, a possible alternative embodiment.
  • La figure 5 montre schématiquement un mode particulier d'application du dispositif.FIG. 5 schematically shows a particular mode of application of the device.

Sur la figure 1,. un pylône A, partiellement représenté et destiné à supporter un pont par l'intermédiaire de haubans, comporte une superposition de canaux courbes B dont un seul est représenté. Chacun de ces canaux enferme un dispositif de raccordement C destiné à assurer la continuité de la tension entre deux portions rectilignes et symétriques de câble tendu E1 et E2 dont chacune en l'espèce est un hauban du pont. Comme cela est détaillé sur la figure 2, le dispositif C comprend un tube incurvé 1 à l'intérieur duquel sont disposés, de façon organisée, des brins de câble 2 maintenus dans cette disposition (au moins) par une succession de séparateurs 3, que des écarteurs 4 peuvent, si nécessaire, maintenir en place à distance prédéterminée. En variante, comme montré sur la figure 3, les brins 2, par exemple des torons ou des fils, peuvent être chacun enfilés dans un tube 5, l'ensemble des tubes 5 étant maintenu en disposition organisée par des ligatures ou de préférence par le tube enveloppant de grand diamètre 1.In Figure 1 ,. a pylon A, partially shown and intended to support a bridge by means of shrouds, comprises a superposition of curved channels B of which only one is shown. Each of these channels encloses a connection device C intended to ensure the continuity of the voltage between two straight and symmetrical portions of tensioned cable E 1 and E 2 each of which in this case is a deck guy. As detailed in FIG. 2, the device C comprises a curved tube 1 inside which are arranged, in an organized manner, strands of cable 2 held in this arrangement (at least) by a succession of separators 3, which spacers 4 can, if necessary, hold in place at a predetermined distance. As a variant, as shown in FIG. 3, the strands 2, for example strands or wires, can each be threaded into a tube 5, the set of tubes 5 being maintained in an arrangement organized by ligatures or preferably by the large diameter wrap tube 1.

Dans tous les cas, les espaces libres intérieurs au tube 1 sont remplis par une matière solidifiable 6 injectée dans ce tube à l'état liquide et qui, solidifiée, est capable de compression élastique. Cette matière est avantageusement un mortier de ciment.In all cases, the free spaces inside the tube 1 are filled with a solidifiable material 6 injected into this tube in the liquid state and which, solidified, is capable of elastic compression. This material is advantageously a cement mortar.

Aux extrémités du tube 1, les brins 2 sont ancrés dans les blocs 8, en l'espèce formés chacun de trois disques épais 81, 82, 83 dont chacun comporte des cavités coniques 9 pour l'ancrage du tiers du nombre des brins 2 ; les disques, dans lesquels des brins ne sont pas ancrés, sont traversés par ceux-ci dans des forages cylindriques. On sait qu'un tel agencement d'ancrages individuels réduit le diamètre du bloc d'ancrage en limitant en outre la déviation des brins.At the ends of the tube 1, the strands 2 are anchored in the blocks 8, in this case each formed from three thick disks 81, 82, 83 each of which comprises conical cavities 9 for anchoring one third of the number of strands 2; the discs, in which strands are not anchored, are crossed by them in cylindrical holes. It is known that such an arrangement of individual anchors reduces the diameter of the anchoring block by further limiting the deflection of the strands.

L'ensemble des trois disques 81, 82, 83 est extérieurement fileté pour recevoir un manchon 10 assurant la liaison avec un bloc d'ancrage similaire 8A qui termine chacune des deux portions rectilignes de câbles tendu à raccorder. L'ensemble ainsi réalisé est équipé d'ajutages de remplissage et d'évents (non représentés) ; il peut comporter en outre des joints d'étanchéité 7 pour permettre son remplissage sous pression avec la matière liquide durcissable, destinée à être comprimée avec le reste du contenu du tube par la mise en tension des brins 2.The set of three discs 81, 82, 83 is externally threaded to receive a sleeve 10 ensuring the connection with a similar anchoring block 8A which terminates each of the two rectilinear portions of cables stretched to be connected. The assembly thus produced is equipped with filling nozzles and vents (not shown); it may further include seals 7 to allow it to be filled under pressure with the curable liquid material, intended to be compressed with the rest of the contents of the tube by the tensioning of the strands 2.

Il est possible, les brins 2 étant nus, tendus et maintenus en place dans le tube 1 (convenablement conformé) par des séparateurs 3, pratiquement adjacents afin d'avoir une courbure régulière, de couler dans ce tube du mortier de ciment de telle sorte que ce mortier, une fois durci, soit précontraint, ainsi que le tube 1, par les brins 2 tendus libérés de leur appareil de mise en tension.It is possible, the strands 2 being bare, stretched and held in place in the tube 1 (suitably shaped) by separators 3, practically adjacent so as to have a regular curvature, to pour cement mortar in this tube so that that this mortar, once hardened, is prestressed, as well as the tube 1, by the strands 2 stretched released from their tensioning device.

Dans une autre configuration, les brins 2 étant graissés, ou bien gainés, on injecte la matière 6 avant mise en tension des brins et ancrage dans les blocs 8. La tension totale imposée aux brins doit de toutes façons être au moins égale, et de préférence supérieure, à la tension des portions de câble E, E2 pour qu'en service une précontrainte subsiste dans le dispositif.In another configuration, the strands 2 being greased or sheathed, the material 6 is injected before tensioning the strands and anchoring in the blocks 8. The total tension imposed on the strands must in any case be at least equal, and of preferably greater than the tension of the cable portions E, E 2 so that in service a prestress remains in the device.

Un dispositif de raccordement ainsi préparé peut être simplement appliqué contre un appui incurvé ménagé dans une structure, par exemple une ouverture en forme de canal ménagée dans un pylône, pour .le raccordement de deux haubans, ou placé au sommet dudit pylône (figure 5).A connection device thus prepared can be simply applied against a curved support formed in a structure, for example a channel-shaped opening formed in a pylon, for the connection of two shrouds, or placed at the top of said pylon (Figure 5) .

On peut aussi l'incorporer à un tel pylône de la manière montrée sur la figure 1. Le tube 1 peut être pourvu dans sa partie centrale de bagues soudées 12 (ou autres reliefs) pour améliorer sa liaison avec la masse de béton 13 du pylône 17. Vers les extrémités, le tube 1 est séparé du béton 13 par une couche de graisse ou par des manchons d'élastomère 14. Ainsi, lorsqu'il se produit une variation de tension dans les portions rectilignes E1 et E2, le tube 1 et son contenu peuvent varier en longueur (par variation de la tension des brins et de la compression du tube et de son contenu) sans affecter le pylône A.It can also be incorporated into such a pylon as shown in Figure 1. The tube 1 can be provided in its central part with welded rings 12 (or other reliefs) to improve its connection with the concrete mass 13 of the pylon 17. Towards the ends, the tube 1 is separated from the concrete 13 by a layer of grease or by elastomer sleeves 14. Thus, when there is a variation in tension in the straight portions E 1 and E 2 , the tube 1 and its content can vary in length (by varying the tension of the strands and the compression of the tube and its content) without affecting the pylon A.

Dans la réalisation montrée par la figure 4, les brins 2 sont disposés en hélice pour compenser leurs différences de longueur dues à l'incurvation du tube 1, en l'espèce de section rectangulaire. Dans ce cas aussi, la tension des brins 2 et leur ancrage sont réalisés après prise et durcissement du béton qui remplit le tube 1 et l'entoure.In the embodiment shown in Figure 4, the strands 2 are arranged in a helix to compensate for their differences in length due to the curvature of the tube 1, in this case of rectangular section. In this case too, the tension of the strands 2 and their anchoring are carried out after setting and hardening of the concrete which fills the tube 1 and surrounds it.

L'invention s'applique à tous câbles tendus présentant des inflexions et soumis à une tension ininterrompue. Elle convient spécialement aux couples continus de haubans de suspension d'un ouvrage à partir d'un ou plusieurs pylônes.The invention applies to all taut cables having inflections and subjected to uninterrupted tension. It is especially suitable for continuous pairs of stay cables for hanging a structure from one or more pylons.

On sait que de tels haubans subissent, en raison de la circulation de charges importantes, des intempéries et des variations de température, de fortes variations de tension.We know that such shrouds undergo, due to the circulation of large loads, bad weather and temperature variations, large voltage variations.

Claims (4)

1. Apparatus for connection between two rectilinear, not prolongating each other, portions of a stretched cable, said apparatus passing through a massive constructive work and adapted to transmit tension from one (E1) of the portions of cable to the other (E2) through a segment (C) of cable, the strands (2) of which are curvated according to the desired curvature, separated from one another and stretched, characterized in that the segment (C) of cable is integrated in a strong prefabricated tubular element (1) included in the massive constructive work, the free spaces of said element being filled, at least partly, with a material, said material, as a rule a cemetitious mortar, being able to harden, said tubular element (1) and the hardened material being prestressed by - the stretched strands (2) of the segment of cable.
2. Apparatus for connection according to claim 1, characterized in that the strands of the segment of cable are free relative to the tubular element and are anchored to the end faces (8) of said tubular element (6) after tensionning.
3. Apparatus for connection according to claim 2, characterized in that the tubular envelope is joint, in its central part, to relief elements for anchoring in the constructive work, the ends of said envelope being separated from said constructive work with a coating of a material allowing displacement of said ends relative to said constructive work.
4. Apparatus according to claim 1, characterized in that anchoring of the strands of the connecting segment to the faces of the prefabricated tubular element is ensured by the connecting means of said strands to the connected and stretched portions of cable.
EP82401551A 1981-08-21 1982-08-18 Arched connecting element between two rectilinear portions of a tensional cable Expired EP0073170B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82401551T ATE23596T1 (en) 1981-08-21 1982-08-18 ARC-FORM CONNECTION BETWEEN TWO STRAIGHT PARTS OF A PULLED ROPE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8116079 1981-08-21
FR8116079A FR2511721A1 (en) 1981-08-21 1981-08-21 CURVED CONNECTION DEVICE BETWEEN TWO RECTILINE PORTIONS OF A TENSILE CABLE

Publications (3)

Publication Number Publication Date
EP0073170A2 EP0073170A2 (en) 1983-03-02
EP0073170A3 EP0073170A3 (en) 1983-10-12
EP0073170B1 true EP0073170B1 (en) 1986-11-12

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EP82401551A Expired EP0073170B1 (en) 1981-08-21 1982-08-18 Arched connecting element between two rectilinear portions of a tensional cable

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US (1) US4505081A (en)
EP (1) EP0073170B1 (en)
JP (1) JPS5844142A (en)
AT (1) ATE23596T1 (en)
BR (1) BR8204894A (en)
DE (1) DE3274275D1 (en)
DK (1) DK161604C (en)
ES (1) ES515021A0 (en)
FR (1) FR2511721A1 (en)
IN (1) IN158246B (en)
NO (1) NO156575C (en)

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DE3819023A1 (en) * 1988-06-03 1989-12-07 Werner Zapf REINFORCEMENT ARRANGEMENT FOR STRUCTURAL CONCRETE CONSTRUCTIONS
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CN106120557B (en) * 2010-03-26 2019-04-02 Vsl国际股份公司 Abutment bracket and for protecting method of the strands from corroding in abutment bracket
KR101735088B1 (en) * 2010-03-26 2017-05-12 파우에스엘 인터나치오날 아게 Sealing arrangement
PL2550401T3 (en) * 2010-03-26 2017-08-31 Vsl International Ag Bridge saddle and method for protecting strands from corrosion in such bridge saddle
AU2011293086B2 (en) * 2010-08-24 2015-10-22 Mark Ronald Sinclair System for anchoring a load
FR2968681B1 (en) * 2010-12-08 2015-05-29 Soletanche Freyssinet DEVICE FOR THE DEVIATION OF A STRUCTURED CABLE, SUCH AS A HAUBAN, AND A WORK THUS EQUIPPED
ES2402971B1 (en) * 2011-08-04 2014-08-07 Tecnicas Del Pretensado Y Servicios Auxiliares, S.L. MULTITUBE CHAIR FOR BRIDGED AND EXTRUDED BRIDGES AND PROCEDURE FOR MANUFACTURE.
US8640292B1 (en) * 2012-05-21 2014-02-04 Felix L. Sorkin Deviator system for use in post-tension segmental concrete construction
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Also Published As

Publication number Publication date
DK161604B (en) 1991-07-22
US4505081A (en) 1985-03-19
NO156575C (en) 1987-10-14
JPS5844142A (en) 1983-03-15
DK368982A (en) 1983-02-22
ES8307967A1 (en) 1983-08-16
ES515021A0 (en) 1983-08-16
EP0073170A3 (en) 1983-10-12
EP0073170A2 (en) 1983-03-02
DK161604C (en) 1992-02-24
DE3274275D1 (en) 1987-01-02
ATE23596T1 (en) 1986-11-15
NO822852L (en) 1983-02-22
FR2511721B1 (en) 1984-04-13
BR8204894A (en) 1983-08-02
FR2511721A1 (en) 1983-02-25
NO156575B (en) 1987-07-06
IN158246B (en) 1986-10-04

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