EP0123622B1 - Vorrichtung zur Verankerung eines Vorspannkabels - Google Patents

Vorrichtung zur Verankerung eines Vorspannkabels Download PDF

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Publication number
EP0123622B1
EP0123622B1 EP84400800A EP84400800A EP0123622B1 EP 0123622 B1 EP0123622 B1 EP 0123622B1 EP 84400800 A EP84400800 A EP 84400800A EP 84400800 A EP84400800 A EP 84400800A EP 0123622 B1 EP0123622 B1 EP 0123622B1
Authority
EP
European Patent Office
Prior art keywords
block
plate
holes
anchoring device
pierced
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
EP84400800A
Other languages
English (en)
French (fr)
Other versions
EP0123622A3 (en
EP0123622A2 (de
Inventor
Jean-François Nieto
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 AT84400800T priority Critical patent/ATE35011T1/de
Publication of EP0123622A2 publication Critical patent/EP0123622A2/de
Publication of EP0123622A3 publication Critical patent/EP0123622A3/fr
Application granted granted Critical
Publication of EP0123622B1 publication Critical patent/EP0123622B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • E04C5/12—Anchoring devices
    • E04C5/122—Anchoring devices the tensile members are anchored by wedge-action
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/39—Cord and rope holders
    • Y10T24/3907—Sheathed strand

Definitions

  • the invention relates to anchoring devices intended for prestressing cables composed of several wires or strands, devices comprising a support plate, an anchoring block pierced with frustoconical holes each traversed by a wire or strand of the cable, said block resting on the support plate, and frustoconical jaws adapted to wedge the wires or strands in the corresponding holes of the block.
  • the support plate is hollowed out by a single central opening traversed by all of the wires or strands constituting the cable (see for example the document CH-A-444 441).
  • the edge of this opening, furthest from the block, is connected by a trumpet to the end of the sheath which envelops the cable.
  • the block must then have on the one hand a relatively large thickness to resist the flexions to which it is stressed by the tension exerted on the cable, given the vacuum created by the opening of the plate, and on the other hand sufficient transverse dimensions. to be able to rest on the edge of this opening.
  • said thickness of the block is not solely determined by the dimensions of the jaws.
  • the support plate is pierced with multiple holes extending those of the block so that this plate can support this block over its entire non-pierced surface.
  • the support plate is no longer pierced with a single central opening, but with a multitude of holes, in the manner of a grid or plate "crosslinked” or gridded.
  • This arrangement makes it possible to reduce all the dimensions of the anchoring block, and in particular its thickness, and therefore its cost.
  • the conicity of the jaw receiving holes is extended axially beyond the block, in the plate itself, which allows the ends of the jaws to also penetrate into the plate, thus ensuring excellent transverse attachment of these two parts: one is thus sure of the stability over time of their relative transverse positioning.
  • the mutual adhesion between the plate and the block can be improved by subjecting appropriate finishing treatments to the facing surfaces of these two parts or by applying to at least one of these surfaces an appropriate coating.
  • the block can be welded to the plate.
  • Figure 1 of this drawing shows in axial section a cable anchoring device according to the invention.
  • Figure 2 also shows in axial section the detail of a variant of such a device also according to the invention.
  • the anchoring device shown in FIG. 1 comprises a plate 1 pierced with a multitude of cylindrical holes 1 1 suitable for extending the various frustoconical holes 2 1 hollowed out in an anchoring block 2 itself constituted by a flat block of relatively small dimensions.
  • frustoconical jaws 3 block the multiple wires or strands 4 making up the cable to be anchored.
  • the periphery of the face, of the plate 1, furthest from the block 2, is connected, by a trumpet 5 whose diameter decreases away from the plate, at the end of a sheath 6 constituting the envelope of the cable, the sections, wires or strands 4, leaving the plate 1 being guided to said end by said trumpet which surrounds them.
  • This trumpet 5 and the sheath 6 are intended to be embedded in the concrete structure 7 which it is desired to subject to prestressing by the tension of the cable.
  • the axes of the holes 1 1 and 2 1 can be divergent towards the outside of the structure 7, as is usual.
  • these axes are perpendicular to the support plane of the plate 1, that is to say parallel to the general axis of the cable: the holes which must be made in the plate 1 and in block 2 to obtain the holes 1 1 and 2 1 are then simplified.
  • the axes considered could also have a general orientation converging towards the outside of the structure 7, as shown schematically by the angle a.
  • the holes hollowed out in the plate 1 each comprise a frustoconical section 1 2 extending exactly one frustoconical hole 2 1 of the block 2 and the small base of this frustoconical section 1 2 is connected to a cylindrical section 1 3 opening on the outside of the plate on its face furthest from block 2.
  • the small diameter ends of the jaws 3 can penetrate into the frustoconical sections 1 2 , which ensures excellent transverse joining between the plate 1 and the block 2, making it impossible for them to slide relative in particular to their work in mutual bending.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Piles And Underground Anchors (AREA)
  • Bridges Or Land Bridges (AREA)
  • Ropes Or Cables (AREA)
  • Coating With Molten Metal (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Laminated Bodies (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Surgical Instruments (AREA)
  • Reinforcement Elements For Buildings (AREA)

Claims (5)

1. Vorrichtung zur Verankerung eines Vorspannkabels, das aus mehreren Drähten oder Litzen (4) gebildet ist, mit einer Auflagerplatte (1), einem Block (2), der von kegelstumpfartigen Löchern (21) durchbohrt ist, die je von einem Draht oder einer Litze des Kabels durchsetzt sind, wobei der Block auf der Auflagerplatte ruht, und kegelstumpfartigen Spannbacken (3) zum Festklemmen der Drähte oder Litzen in ihren Löchern, dadurch gekennzeichnet, daß die Auflagerplatte (1) von mehreren Löchern (11; 12, 13) durchbohrt ist, welche jene (21) des Blockes (2) derart verlängern, daß diese Platte den Block über ihre gesamte nicht durchbohrte Fläche abstützt.
2. Verankerungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Konizität der Löcher zur Aufnahme der Spannbacken axial über den Block (2) hinaus in die Platte (1) selbst verlängert ist (bei 12).
3. Verankerungsvorrichtung nach einem der Ansprüchen 1 und 2, dadurch gekennzeichnet, daß zumindest eine der gegenseitigen Anlageflächen der Platte (1) und des Blockes (2) behandelt oder mit einem Überzug versehen ist, um ihre Haftung an der gegenüberliegenden Fläche zu verbessern.
4. Verankerungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Platte (1) auf den Block (2) aufgeschweißt ist.
5. Verankerungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Achsen der Löcher und Bohrungen, die in der Platte (1) und im Block (2) ausgebildet sind, zur allgemeinen Richtung des Kabels parallel verlaufen.
EP84400800A 1983-04-22 1984-04-19 Vorrichtung zur Verankerung eines Vorspannkabels Expired EP0123622B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84400800T ATE35011T1 (de) 1983-04-22 1984-04-19 Vorrichtung zur verankerung eines vorspannkabels.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR8302084A BR8302084A (pt) 1983-04-22 1983-04-22 Conjunto para ancoragem de membros tensores
BR8302084 1983-04-22

Publications (3)

Publication Number Publication Date
EP0123622A2 EP0123622A2 (de) 1984-10-31
EP0123622A3 EP0123622A3 (en) 1985-08-28
EP0123622B1 true EP0123622B1 (de) 1988-06-08

Family

ID=4033101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84400800A Expired EP0123622B1 (de) 1983-04-22 1984-04-19 Vorrichtung zur Verankerung eines Vorspannkabels

Country Status (8)

Country Link
US (1) US4558547A (de)
EP (1) EP0123622B1 (de)
JP (1) JPS6084909A (de)
AT (1) ATE35011T1 (de)
BR (1) BR8302084A (de)
DE (1) DE3471965D1 (de)
ES (1) ES532162A0 (de)
FR (1) FR2544769B1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2663975B1 (fr) * 1990-06-29 1993-07-09 Freyssinet Int Stup Perfectionnements aux ponts a haubans et plus particulierement a leurs pylones et haubans.
US5596854A (en) * 1994-01-19 1997-01-28 Vsl International Ag Post-tensioning anchor head assembly
DE19539748A1 (de) * 1995-10-26 1997-04-30 Dyckerhoff & Widmann Ag Spannbetonbauteil
US20040159058A1 (en) * 2003-02-19 2004-08-19 Jacques Gulbenkian Unbonded post-tensioning system
US7941554B2 (en) * 2003-08-01 2011-05-10 Microsoft Corporation Sparse caching for streaming media
US7597505B2 (en) * 2006-03-28 2009-10-06 Price Herbert S Roof bolt plate
CN110034525A (zh) * 2019-03-28 2019-07-19 合肥工业大学 压力容器传感器引出导线密封装置及方法
CN111485679A (zh) * 2020-05-07 2020-08-04 吴立新 一种用于扁锚的钢绞线连接器及使用方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB647378A (en) * 1948-09-03 1950-12-13 Dowsett Engineering Constructi Method and apparatus for use in the manufacture of reinforced concrete
DE969806C (de) * 1952-11-26 1958-07-17 Hochtief Ag Hoch Tiefbauten Verfahren zum Verkeilen gespannter Drahtbuendel bei der Herstellung von Spannbeton
US3060639A (en) * 1958-12-05 1962-10-30 Prescon Corp Prestressing apparatus
US3226934A (en) * 1961-05-16 1966-01-04 C I M Consultants Ltd Rock bolts
CH444441A (de) * 1965-09-16 1967-09-30 Losinger Ag Einrichtung zum Spannen und Verankern von mehreren, zusammen ein Spannkabel bildenden Spanngliedern
DE6938088U (de) * 1969-09-29 1970-01-02 Ilseder Huette Spannstahlverankerung
CH534786A (de) * 1971-10-21 1973-03-15 Brandestini Antonio Einrichtung zum Spannen und Verankern von Drähten oder Litzen
JPS5321749Y2 (de) * 1972-01-17 1978-06-07
GB1478308A (en) * 1973-08-23 1977-06-29 Ccl Systems Ltd Anchorage assembly for use in the prestressing of concrete structures
JPS532313U (de) * 1976-06-22 1978-01-11
JPS5321752U (de) * 1976-07-30 1978-02-23

Also Published As

Publication number Publication date
DE3471965D1 (en) 1988-07-14
ES8502196A1 (es) 1985-01-01
JPS6084909A (ja) 1985-05-14
FR2544769A1 (fr) 1984-10-26
BR8302084A (pt) 1984-11-20
US4558547A (en) 1985-12-17
EP0123622A3 (en) 1985-08-28
FR2544769B1 (fr) 1986-12-26
ES532162A0 (es) 1985-01-01
EP0123622A2 (de) 1984-10-31
ATE35011T1 (de) 1988-06-15

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