EP0073170B1 - Bogenförmiges Verbindungsstück zwischen zwei geradlinigen Teilen eines gezogenen Seils - Google Patents

Bogenförmiges Verbindungsstück zwischen zwei geradlinigen Teilen eines gezogenen Seils 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
Authority
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
Other languages
English (en)
French (fr)
Other versions
EP0073170A2 (de
EP0073170A3 (en
Inventor
Antonio Dinis
Carlos De La Fuente
Paul Mondorf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Freyssinet International STUP SA
Original Assignee
Freyssinet International STUP SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Freyssinet International STUP SA filed Critical Freyssinet International STUP SA
Priority to AT82401551T priority Critical patent/ATE23596T1/de
Publication of EP0073170A2 publication Critical patent/EP0073170A2/de
Publication of EP0073170A3 publication Critical patent/EP0073170A3/fr
Application granted granted Critical
Publication of EP0073170B1 publication Critical patent/EP0073170B1/de
Expired legal-status Critical Current

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Classifications

    • 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.

Landscapes

  • 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)
  • Reinforcement Elements For Buildings (AREA)
  • Communication Cables (AREA)
  • Flexible Shafts (AREA)
  • Coupling Device And Connection With Printed Circuit (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)

Claims (4)

1. Einrichtung zur Herstellung einer Verbindung zwischen zwei geradlinigen, sich nicht in der Verlängerung des jeweils anderen befindlichen Abschnitten eines gespannten Seils, welches ein vollwandiges Bauwerk durchsetzt und der Übertragung von Zug von einem Seilabschnitt (E,) zum anderen (E2) über ein Seilsegment (C) mit entlang der gewünschten Krümmung gebogenen, voneinander getrennten und gespannten Strängen (2) dient, dadurch gekennzeichnet, daß das Seilsegment (C) in einen rohrförmigen, vorgefertigten und widerstandsfähigen Teil integriert ist, der eingebaut in das vollwandige Bauwerk mit zumindest teilweise mit einem erhärtungsfähigen Material im Prinzip Zementmörtel, gefüllten Freiräumen versehen ist und der zusammen mit dem erhärteten Material durch die gespannten Stränge (2) des Seilsegments mechanisch vorgespannt ist.
2. Einrichtung zur Herstellung einer Verbindung gemäß Anspruch 1, dadurch gekennzeichnet, daß die Stränge des Seilsegments mit Bezug auf den rohrförmigen Teil frei und nach dem Spannen in den Endflächen (8) des rohrförmigen Teils (2) verankert sind.
3. Einrichtung zur Herstellung einer Verbindung gemäß Anspruch 2, dadurch gekennzeichnet, daß der rohrförmige Mantel in seinem Mittelteil durch Verankerungseinrichtungen (12) mit dem Bauwerk starr verbunden ist, während seine Endteile vom Bauwerk durch eine Schicht aus einem Material, das eine Relativverschiebung zwischen den Endteilen und dem Bauwerk ermöglicht, getrennt sind.
4. Einrichtung gemäß Anspruch 1, dadurch gekennzeichnet, daß die Verankerungen der Stränge des Segments zur Verbindungsherstellung in den Endflächen des vorgefertigten, rohrförmigen Teils durch die Einrichtungen zur Verbindungsherstellung zwischen den Strängen und den gespannten Abschnitten der verbundenen Seile gebildet sind.
EP82401551A 1981-08-21 1982-08-18 Bogenförmiges Verbindungsstück zwischen zwei geradlinigen Teilen eines gezogenen Seils Expired EP0073170B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82401551T ATE23596T1 (de) 1981-08-21 1982-08-18 Bogenfoermiges verbindungsstueck zwischen zwei geradlinigen teilen eines gezogenen seils.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8116079A FR2511721A1 (fr) 1981-08-21 1981-08-21 Dispositif de raccordement incurve entre deux portions rectilignes d'un cable tendu
FR8116079 1981-08-21

Publications (3)

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

Family

ID=9261601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82401551A Expired EP0073170B1 (de) 1981-08-21 1982-08-18 Bogenförmiges Verbindungsstück zwischen zwei geradlinigen Teilen eines gezogenen Seils

Country Status (11)

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

Families Citing this family (35)

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IT8422084V0 (it) * 1984-06-05 1984-06-05 Ponteggi Est Spa Testata di ancoraggio di accoppiamento per realizzazione di manufatti in calcestruzzo precompressi a cavi scorrevoli.
FR2567946B1 (fr) * 1984-07-20 1986-12-26 Freyssinet Int Stup Perfectionnements aux procedes et dispositifs pour cintrer localement les armatures de precontrainte
FR2588596B1 (fr) * 1985-10-10 1987-12-24 Freyssinet Int Stup Perfectionnements aux dispositifs de precontrainte du beton comportant des cables tendus sinueux et a leurs procedes de mise en oeuvre
FR2606216A1 (fr) * 1986-10-30 1988-05-06 Elf Aquitaine Materiau a conduction ionique
FR2610656B1 (fr) * 1987-02-11 1991-06-21 Citra Dispositif pour guider les cables de precontrainte d'un ouvrage de genie civil
DE3801451C2 (de) * 1987-10-15 1994-09-29 Dyckerhoff & Widmann Ag Korrosionsgeschütztes freies Zugglied, vornehmlich Spannglied für Spannbeton ohne Verbund
DE8716677U1 (de) * 1987-03-13 1988-02-11 Dyckerhoff & Widmann Ag, 8000 Muenchen, De
US5019469A (en) * 1987-06-18 1991-05-28 Societe Nationale Elf Aquitaine Process for production of an electrochemical sub-assembly comprising an electrode and an electrolyte, and the sub-assembly obtained in this way
DE3819023A1 (de) * 1988-06-03 1989-12-07 Werner Zapf Bewehrungsanordnung fuer baukonstruktionen aus spannbeton
FR2642449B1 (fr) * 1989-01-31 1991-05-10 Freyssinet Int Stup Perfectionnements aux ponts a haubans et plus particulierement a leurs pylones et haubans
EP0393013B2 (de) * 1989-04-12 1997-06-25 Vorspann-Technik Gesellschaft m.b.H. Spannbündel aus mehreren Spanngliedern
FR2656883B1 (fr) * 1990-01-11 1992-08-28 Freyssinet Int Stup Perfectionnements aux ponts a haubans et plus particulierement a leurs haubans, pylones et tabliers.
FR2663975B1 (fr) * 1990-06-29 1993-07-09 Freyssinet Int Stup Perfectionnements aux ponts a haubans et plus particulierement a leurs pylones et haubans.
US5231931A (en) * 1992-01-23 1993-08-03 J. Muller International Rapid transit viaduct system
CH690448A5 (de) * 1996-04-22 2000-09-15 Pecon Ag Mehrteiliger Armierungsstab.
DE19858001A1 (de) * 1998-12-16 2000-06-21 Bilfinger Berger Bau Externes Spannglied
FR2806107B1 (fr) * 2000-03-13 2002-10-11 Freyssinet Int Stup Selle de deviation pour cable et structure de genie civil comprenant une telle selle de deviation
US6327825B1 (en) * 2000-04-24 2001-12-11 Charles Pankow Builders Ltd. Method and apparatus for use in positioning high-strength cables within a precast moment resisting frame
US6588730B2 (en) * 2001-07-31 2003-07-08 Bill Hughes Method and apparatus for use in positioning high-strength cables within a precast, moment resisting frame
US6880193B2 (en) * 2002-04-02 2005-04-19 Figg Bridge Engineers, Inc. Cable-stay cradle system
JP4663563B2 (ja) * 2006-03-22 2011-04-06 独立行政法人鉄道建設・運輸施設整備支援機構 橋梁用サドル構造
CN101421463B (zh) * 2006-04-20 2011-09-07 Vsl国际股份公司 用于绞线的引导装置
EP2550401B1 (de) * 2010-03-26 2016-12-14 VSL International AG Sattelsteg und verfahren zum schutz der stränge von korrosion in diesem sattelsteg
CN106120557B (zh) * 2010-03-26 2019-04-02 Vsl国际股份公司 桥托架以及用于保护线股免于在桥托架中腐蚀的方法
ES2813062T3 (es) * 2010-03-26 2021-03-22 Vsl Int Ag Disposición de sellado
WO2012024725A1 (en) * 2010-08-24 2012-03-01 Mark Ronald Sinclair System for anchoring a load
FR2968681B1 (fr) * 2010-12-08 2015-05-29 Soletanche Freyssinet Dispositif de deviation d'un cable de structure tel qu'un hauban, et ouvrage ainsi equipe
ES2402971B1 (es) * 2011-08-04 2014-08-07 Tecnicas Del Pretensado Y Servicios Auxiliares, S.L. Silla multitubo para puentes atirantados y extradorsados y procedimiento para su fabricación.
US8640292B1 (en) * 2012-05-21 2014-02-04 Felix L. Sorkin Deviator system for use in post-tension segmental concrete construction
EP2703331B1 (de) * 2012-09-03 2014-12-24 Soletanche Freyssinet Traktionssystem unter Verwendung eines mehrsehnigen Kabels mit einem Ablenkungswinkel
JP2015042844A (ja) * 2014-11-21 2015-03-05 ファウ・エス・エル・インターナツイオナール・アクチエンゲゼルシヤフト 撚線案内装置の改善
FR3069555A1 (fr) * 2017-07-28 2019-02-01 Soletanche Freyssinet Ensemble ameliore comprenant un cable de structure et un dispositif de deviation
CN113431260A (zh) * 2021-06-30 2021-09-24 西藏藏建科技股份有限公司 一种基于钢绞线的大梁施工工艺
US20230159744A1 (en) * 2021-11-24 2023-05-25 Felix Sorkin Polymer blend cradle for cable-stayed bridge
WO2024094286A1 (en) * 2022-10-31 2024-05-10 Vsl International Ag Cable system for a structural- and tensioning element and a method for replacing the tensile elements and the use thereof

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FR1230559A (fr) * 1959-03-31 1960-09-16 Entpr S Campenon Bernard Dispositifs accumulateurs de tension et leur application partieulière à la précontrainte d'ouvrages et de parties de constructions
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FR2409354A1 (fr) * 1977-09-22 1979-06-15 Fuentes Albert Barre de beton ou de mortier precomprimee
DE2811759A1 (de) * 1978-03-17 1979-09-20 Philipp Dipl Ing Schreck Vorgespanntes stahlbetonseil und verfahren zur anwendung von vorgespannten stahlbetonseilen bei der herstellung einer haengebruecke

Also Published As

Publication number Publication date
FR2511721A1 (fr) 1983-02-25
EP0073170A2 (de) 1983-03-02
DK368982A (da) 1983-02-22
FR2511721B1 (de) 1984-04-13
ATE23596T1 (de) 1986-11-15
NO156575C (no) 1987-10-14
EP0073170A3 (en) 1983-10-12
ES8307967A1 (es) 1983-08-16
DK161604B (da) 1991-07-22
NO156575B (no) 1987-07-06
DE3274275D1 (en) 1987-01-02
NO822852L (no) 1983-02-22
BR8204894A (pt) 1983-08-02
DK161604C (da) 1992-02-24
ES515021A0 (es) 1983-08-16
IN158246B (de) 1986-10-04
JPS5844142A (ja) 1983-03-15
US4505081A (en) 1985-03-19

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