EP1131512B1 - Verankerungsvorrichtung zum befestigen eines strukturkabels an einen bauteil - Google Patents

Verankerungsvorrichtung zum befestigen eines strukturkabels an einen bauteil Download PDF

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Publication number
EP1131512B1
EP1131512B1 EP00962611A EP00962611A EP1131512B1 EP 1131512 B1 EP1131512 B1 EP 1131512B1 EP 00962611 A EP00962611 A EP 00962611A EP 00962611 A EP00962611 A EP 00962611A EP 1131512 B1 EP1131512 B1 EP 1131512B1
Authority
EP
European Patent Office
Prior art keywords
tube
anchoring device
strands
chamber
plate
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 - Lifetime
Application number
EP00962611A
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English (en)
French (fr)
Other versions
EP1131512A1 (de
Inventor
Jérôme Stubler
Patrick Ladret
Jean-Claude Percheron
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
Publication of EP1131512A1 publication Critical patent/EP1131512A1/de
Application granted granted Critical
Publication of EP1131512B1 publication Critical patent/EP1131512B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • Y10T24/3909—Plural-strand cord or rope
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/49874—Prestressing rod, filament or strand
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7047—Radially interposed shim or bushing
    • Y10T403/7051—Wedging or camming
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7062—Clamped members

Definitions

  • the present invention relates to the devices anchor for fixing structural cables to elements of construction.
  • the invention is applied each it is necessary to fix a cable subject to tensile forces, to equip elements of such as cable-stayed bridges, suspended or others, by connecting the tops of the pylons of these bridges to their aprons and their anchor beds.
  • the cables usually encountered in such construction elements include a plurality of strands which each include wires themselves wrapped together in a protective sheath, each of these protective sheaths being interrupted at a level of terminal slice so that the strands each have a bare end section.
  • the inner plate of the cable gland is fixed while the outer plate is movable and is driven to the fixed plate by means of threaded rods running through the perforated block and put in traction. These stems are both screwed into the outer plate and into an abutment nut against the perforated block.
  • the present invention aims to remedy aforementioned drawbacks by providing a device Anchoring makes maintenance easier.
  • a device anchor of the kind in question is characterized in that the outer plate is fixed by to the chamber and in that the device includes support means on the inner plate.
  • the construction element 1 shown in FIG. is for example a suspension bridge.
  • This bridge comprises conventionally an apron 2, two pillars or pylons 3, two parallel carrying cables 4, only one being visible on the figure, and a plurality of hangers 4a that are hooked to the cables 4 and which carry the apron 2.
  • the carrying cables 4 are stretched between two beds ground anchor 9 located at both ends of the bridge, and they are supported by the two pylons 3.
  • the cable 4 considered is composed of a plurality of strands individual 5.
  • Each strand 5 is itself formed, as shown in FIG. FIG. 3, of a plurality of elementary wires 6, by example to the number of seven.
  • These wires can be parallel or twisted and are for example made of galvanized steel or galfanized. All of these threads are surrounded by a protective sheath 7 which is able to protect them at life course against corrosion due to bad weather or other external aggression, and in particular humidity and handling.
  • This sheath is for example made of a plastic material, such as polyethylene or a polyamide, or a metal such as aluminum or stainless steel. The sheath is directly reported on the wire bundle by extrusion.
  • the sheath in question may also be constituted by any other desirable coating of the wire bundle 6, for example by an epoxy paint coated on it.
  • the intervals between the wires 6 and the sheath 7, if they exist, can be filled or not by a protective substance 8 such as, for example, a pitch resinous epoxy type or a wax or polybutadiene.
  • the sheathed strands 5 thus defined are all identical to each other, are autonomous and remain so for the entire life of the cable 4 they constitute.
  • the sheathed strands 5 of the cable 4 are put in tension individually, in a manner known per se, on the bridge 1.
  • the assembly is ensured by means of sleeves spun or, as shown in FIGS. 4 and 5, by tightening the ends of the strands 5 in split jaws 10.
  • each of the protective sheaths 7 of the strands 5 is interrupted at a terminal slice T so that each strand 5 has an end portion 11 bare.
  • the denuded end sections 11 are tight in the split jaws 10 which each have, on the one hand, a hole cylindrical threaded clean to surround contiguously the end of the strand to anchor and secondly, a surface outer frustoconical clean to cooperate with housing complementary formed in a perforated anchor block 15.
  • Each strand 5 is thus tensioned between for example, a pillar 3 of the bridge 1 and the perforated block 15 solidary, for example, of one of the anchoring beds 9 of this bridge.
  • the perforated block 15 has two opposite faces: a outer face 16 and an inner face 17.
  • the face 16 is turned away from the strands 5. ends 12 of the end sections 11 protrude from this face.
  • the inner face 17 is turned towards the strands 5.
  • the gland 25 is constituted, in a known manner in itself, three perforated plates 26, 27 and 28 between which are interposed two cushions 29 and 30 made of elastomeric material or the like.
  • Perforated plates 26 to 28 are plates rigid plastic material and the set of plates and cushions extends transversely to the strands 5 to be crossed by them.
  • the plate 26 is an outer plate located at the end of the tube 22 turned towards the current part of the cable that is to say, from the side from which the strands 5 extend towards the pylon 3. This plate is held in a fixed position relative to the chamber 20 abutting against a return 32 formed to the end of the tube 22.
  • the plates 26 to 28 hold the cushions 29,30 in compression to inflate the edges of the cushions and ensure the desired sealing.
  • means 35 cooperate with the plate 28 closest to the room 20, also called inner plate.
  • the support means 35 consist of a plate interposition 36 which is perforated and which is applied against the inner plate 28 and threaded rods 37 (only one being shown in Figure 4).
  • the stems threaded take the form of screws each provided with a head 38.
  • a first end of the threaded rod or screw 37 is resting against the interposition plate 36 while the second end of the rod 37 passes through a threaded hole formed in the perforated block 15, so that the head 38 protrudes on the outer face 16 of this block.
  • the stem threaded 37 is operable by means of the head 38 to be screwed through the threaded hole.
  • the intermediate plate 36 is pushed back by screwing Threaded rods or screws 37. During this compression, the interposition plate 36 moves the inner plate 28 by bringing it closer to the outer plate 26 which, she remains fixed.
  • an adjustment tube 40 is mounted secured to the outer face of the tube 22, in the vicinity of the end of this tube adjacent to the perforated block 15 while that a ring 41 is attached by screwing on a thread complemented on the adjustment tube 40.
  • This ring is in axial support against an annular bearing surface 42 part of the anchoring mass 9.
  • the adjustment tube 40 is example welded or screwed on the tube 22 while the block perforated 15 is screwed on the adjustment tube by means of screws 43 accessible from the outer face 16 of this block.
  • a hood 45 is mounted so sealed on the outer face 16 of the perforated block 15 and is held on it by means of screws 46.
  • This hood defines a chamber 47 in which are located the ends 12 stripped end sections 11 of the strands 5 and which contains a flexible protective material against corrosion of these ends.
  • Chamber 47 is filled with protection against corrosion through an orifice which is then closed by a plug 48.
  • the chamber 47 communicates with the chamber 20 by passages in the perforated block 15 (not shown)
  • each strand 5 is autonomous on all its length and can be stretched or relaxed regardless of its neighbors.
  • the 12 ends of these strands are easily accessible from the outside 16 of the perforated block 15.
  • the cushions 29 and 30 can be periodically easily put back into compression for maintain a good seal thanks to the screwing of the heads 38 screws that are easily accessible from the face 16 of the block 15. The operator does not have to disassemble certain constituent parts of the anchoring device previously described to access hidden parts.
  • the second embodiment shown in Figures 5 and 6 differs from the previous embodiment only by the shape of the support means 35, the diameter passages in the cushions 29 and 30, and the end of the tube opposite to the anchor block.
  • the strands 5 are inserted into the cushions 29 and 30 through passages 50 which have a diameter slightly less than that of the sheath 7 of the strands 5.
  • a 51 is formed at the end of the tube 22 which is opposite to the anchoring block 15.
  • the tube 22 thus has its end a segment of inner diameter that is greater to the inside diameter of the rest of the tube.
  • a jump 52 is defined by this change of diameter.
  • the three plates perforated 26 to 28 and the cushions 29 and 30 are inserted in this groove 51 by the end of the tube 22.
  • the plates and the cushions abut against the projection 52 and are held in compression against each other by means of a stop sleeve 53.
  • This sleeve is referred to the end of the tube 22 and is maintained by means of a thread 54 which cooperates with a tapped thread to inside the end portion of the tube.
  • a perforated plate replaces the sleeve stop and is screwed to the end of the tube 22.
  • This plate contains as many perforations as strands to insert into the cable gland.
  • the perforated plate is provided with perforations in number greater than the number of strands.
  • the material of the chamber 20 is put in compression so the plate inside the stuffing box is pushed back towards the outer plate which remains fixed.
  • the cushions 29, 30 are thus compressed more strongly, strengthening sealing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Supports For Pipes And Cables (AREA)

Claims (10)

  1. Verankerungsvorrichtung zum Befestigen eines Strukturkabels (4) an einem Bauelement (9), wobei dieses Kabel (4) mehrere Adern (5) aufweist, die jeweils Metalldrähte (6) aufweisen, die ihrerseits zusammen von einer Schutzhülle (7) umgeben sind, wobei jede dieser Schutzhüllen (7) auf der Höhe eines Schnitts (T) am Ende unterbrochen ist, so dass die Adern (5) jeweils ein bloßgelegtes Endstück (11) besitzen, wobei die Verankerungsvorrichtung folgendes aufweist:
    einen perforierten Block (15), an welchem die entblößten Endstücke (11) der verschiedenen Adern (5) einzeln verankert sind,
    eine Lagerfläche (42), die mit dem Bauelement (9) verbunden ist und gegen die der Außenumfang des perforierten Blocks (15) axial anliegt,
    eine Röhre (22), mit der der perforierte Block (15) auf der Seite der Auflagefläche verbunden ist, wobei die Röhre (22) in Querrichtung eine Kammer (20) begrenzt, in dessen Innerem sich die Schnitte (T) am Ende der Adern (5) befinden und die mit einem Material ausgefüllt ist, das den Schutz der entblößten Endstücke (11) in der Kammer (20) sicherstellt, und
    eine Stopfbüchse (25), die die Kammer (20) gegenüber dem Verankerungsblock (15) auf dichte Art und Weise verschließt und die auf abgedichtete Art und Weise von den umhüllten Adern (5) durchquert wird, wobei die Stopfbüchse (25) folgendes aufweist:
    zumindest zwei perforierte Platten (26 27, 28), von denen eine innere (28) auf der Seite der Kammer (20) und eine äußere (26) bezüglich der inneren (28) auf der anderen Seite des perforierten Blocks (15) vorgesehen ist, und
    zumindest ein Dichtkissen (29, 30), das zwischen der inneren (28) und der äußeren Platte (26) vorgesehen ist,
    dadurch gekennzeichnet, dass die äußere Platte (26) bezüglich der Kammer (20) befestigt ist und dass die Vorrichtung Mittel (35) aufweist, die gegen die innere Platte (28) anliegen.
  2. Verankerungsvorrichtung nach Anspruch 1, bei welcher die Mittel (35) zum Anliegen gegen die innere Platte (28) eine Druckstange (37) aufweisen, deren eines Ende gegen die innere Platte (28) anliegt und deren anderes Ende eine Öffnung in dem perforierten Block (15) durchquert und von der Seite des perforierten Blocks (15) aus betätigbar ist, die der Auflagefläche (32) an dem Bauelement (9) gegenüberliegt.
  3. Verankerungsvorrichtung nach Anspruch 2, wobei die Druckstange (37) mit einem Gewinde versehen ist und die Öffnung ebenfalls ein Gewinde aufweist, wodurch die Stange durch einen Schraubvorgang betätigbar ist.
  4. Verankerungsvorrichtung nach Anspruch 2 oder 3, wobei die Druckstange (37) gegen eine Zwischenplatte (36) anliegt, die angrenzend an die innere Platte (28) vorgesehen ist.
  5. Verankerungsvorrichtung nach Anspruch 1, wobei die Mittel (35) zum Anliegen einen Anschlag (52) aufweisen, der mit der Röhre (22) verbunden ist und der sich im Inneren der Röhre in einem Abstand von der äußeren Fläche der äußeren Platte (26) befindet, der im Wesentlichen gleich der Dicke der Stopfbüchse (25) ist, und wobei zumindest ein Dichtungskissen (29, 30) mit Kanälen (50) versehen ist, deren Durchmesser geringer ist als der Durchmesser der umhüllten Adern (5).
  6. Verankerungsvorrichtung nach Anspruch 5, wobei die Stopfbüchse (25) sich in einer im Inneren der Röhre (22) ausgebildeten Vertiefung (51) befindet und der Anschlag (52) durch den Absatz zwischen dieser Vertiefung (51) und dem regulären Bereich der Röhre (22) definiert ist.
  7. Verankerungsvorrichtung nach einem der Ansprüche 1 bis 6, wobei die äußere Platte (26) gegen eine Arretierhülse (53) anliegt, die durch einen Schraubvorgang am Ende der Röhre (22) angebracht ist.
  8. Verankerungsvorrichtung nach einem der Ansprüche 1 bis 6, wobei die äußere Platte (26) gegen eine am Ende der Röhre (22) vorgesehene perforierte Platte anliegt.
  9. Verankerungsvorrichtung nach einem der Ansprüche 5 bis 8, wobei das Schutzmaterial in der Kammer (20) unter Druck steht.
  10. Verankerungsvorrichtung nach einem der Ansprüche 1 bis 9, wobei ein Deckel (45) auf dichte Art und Weise an dem perforierten Block (15) angebracht ist und eine Kammer (47) begrenzt, in der die entblößten Endstücke (11) der Adern (5) hervorstehen, wobei die Kammer (47) mit dem besagten Schutzmaterial gefüllt ist.
EP00962611A 1999-09-15 2000-09-12 Verankerungsvorrichtung zum befestigen eines strukturkabels an einen bauteil Expired - Lifetime EP1131512B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9911517 1999-09-15
FR9911517A FR2798410B1 (fr) 1999-09-15 1999-09-15 Dispositif d'ancrage pour fixer un cable de structure a un element de construction
PCT/FR2000/002512 WO2001020098A1 (fr) 1999-09-15 2000-09-12 Dispositif d'ancrage pour fixer un cable de structure a un element de construction

Publications (2)

Publication Number Publication Date
EP1131512A1 EP1131512A1 (de) 2001-09-12
EP1131512B1 true EP1131512B1 (de) 2004-04-21

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ID=9549852

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00962611A Expired - Lifetime EP1131512B1 (de) 1999-09-15 2000-09-12 Verankerungsvorrichtung zum befestigen eines strukturkabels an einen bauteil

Country Status (16)

Country Link
US (1) US6578329B1 (de)
EP (1) EP1131512B1 (de)
JP (1) JP3905381B2 (de)
KR (1) KR100647348B1 (de)
AT (1) ATE264963T1 (de)
AU (1) AU7427700A (de)
BR (1) BR0007146A (de)
DE (1) DE60010035T2 (de)
DK (1) DK1131512T3 (de)
ES (1) ES2218219T3 (de)
FR (1) FR2798410B1 (de)
HK (1) HK1038251A1 (de)
MX (1) MXPA01004795A (de)
MY (1) MY120857A (de)
PT (1) PT1131512E (de)
WO (1) WO2001020098A1 (de)

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KR101849254B1 (ko) * 2017-06-28 2018-05-24 주식회사 후레씨네코리아 강연선의 내부식성과 프리스트레스의 도입 특성이 향상된 교량용 거더의 제작 방법 및 이에 의해 제작된 교량용 거더
KR101989945B1 (ko) * 2018-12-11 2019-06-17 퓨처엔지니어링 주식회사 비부착식 인장부재의 정착장치 및 정착방법
CN109695202B (zh) * 2019-03-01 2020-11-24 日照杜卡机电设备有限公司 一种锚具密封钢帽防泄漏装置
KR200494644Y1 (ko) * 2019-11-21 2021-11-22 다올이앤씨 주식회사 강연선 클램핑용 더미 구조체
JP7431688B2 (ja) 2020-07-21 2024-02-15 西日本高速道路株式会社 歩廊構造及び歩廊桁
CN112095779B (zh) * 2020-08-21 2022-01-21 中国建筑第八工程局有限公司 预应力桁架端部底座结构及施工方法
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MXPA01004795A (es) 2002-05-06
PT1131512E (pt) 2004-09-30
FR2798410B1 (fr) 2001-11-23
DK1131512T3 (da) 2004-08-09
HK1038251A1 (en) 2002-03-08
KR100647348B1 (ko) 2006-11-17
BR0007146A (pt) 2001-10-16
EP1131512A1 (de) 2001-09-12
ATE264963T1 (de) 2004-05-15
JP3905381B2 (ja) 2007-04-18
FR2798410A1 (fr) 2001-03-16
WO2001020098A1 (fr) 2001-03-22
US6578329B1 (en) 2003-06-17
KR20010093078A (ko) 2001-10-27
DE60010035T2 (de) 2005-03-31
MY120857A (en) 2005-11-30
ES2218219T3 (es) 2004-11-16
DE60010035D1 (de) 2004-05-27
JP2003509605A (ja) 2003-03-11
AU7427700A (en) 2001-04-17

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