EP0789110B1 - Aufhängevorrichtung für Bauwerke und Verfahren zum Herstellen - Google Patents

Aufhängevorrichtung für Bauwerke und Verfahren zum Herstellen Download PDF

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Publication number
EP0789110B1
EP0789110B1 EP97400238A EP97400238A EP0789110B1 EP 0789110 B1 EP0789110 B1 EP 0789110B1 EP 97400238 A EP97400238 A EP 97400238A EP 97400238 A EP97400238 A EP 97400238A EP 0789110 B1 EP0789110 B1 EP 0789110B1
Authority
EP
European Patent Office
Prior art keywords
sheet
cable
layers
strands
strips
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
EP97400238A
Other languages
English (en)
French (fr)
Other versions
EP0789110A1 (de
Inventor
Jérôme Stubler
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
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Freyssinet International STUP SA
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Filing date
Publication date
Application filed by Freyssinet International STUP SA filed Critical Freyssinet International STUP SA
Publication of EP0789110A1 publication Critical patent/EP0789110A1/de
Application granted granted Critical
Publication of EP0789110B1 publication Critical patent/EP0789110B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D07B1/165—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay
    • D07B1/167—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay having a predetermined shape

Definitions

  • the invention relates to civil engineering works comprising sub-assemblies suspended from cables carriers or shrouds themselves carried by pylons or analogues, the suspension of each subset being carried out by lines hung by collars to said carrying cables or shrouds.
  • each strand has a generally cylindrical shape and the mutual contacts of the strands between them are made along narrow longitudinal ranges, or even linear, of these strands.
  • each hanger The transverse load exerted on the cable by each hanger, and more precisely by the collar placed at the upper end of this hanger, is then transmitted to the cable from strand to strand along said ranges according to non-homogeneous distribution laws, especially if these pads are made of a relatively flexible material such as that constituting a strand sheath of the type self-protected.
  • said strands are not all also requested by the said charge: some of the said strands are therefore relatively overloaded, which requires a overall oversizing of the cable and increases the price by comes back from this cable and the work it equips.
  • German patent 759,490 it was proposed to interpose a trim sheet between the sections, located inside the collar, overlapping layers of strands.
  • This trim sheet has the general shape of a Overturned T whose cross bar serves as a support stop to prevent the collar from going down the cable carrier.
  • the vertical bar of this T has the width of the layers of strands between which it is inserted. Its function is to provide additional friction surface for reinforce the anchoring of the collar on the carrying cable: the overall friction which ensures this anchoring does not result only from the contact surface between the internal face of the cable collar and periphery, but also additional surfaces thus created between the layers of strands and trim sheets. Consequently, this trim sheet is stressed in tension, and does not not contribute to harmonize the stresses exerted on the different strands inside the collar.
  • An object of the present invention is to better distribute the loads exerted on the levels between the strands hanger necklaces.
  • the invention thus provides a suspension device for civil engineering works, including cable carrier itself constituted by lateral juxtaposition of multiple strands distributed in superimposed layers, and lines hung on this cable by clamps and suitable for transmitting the load of the structure to said cable, an intermediate sheet being interposed between the sections, located inside each necklace, from two to minus the superimposed layers of strands of the carrying cable, in which the interlayer sheet is alternately ribbed on both sides by bracing slats parallels with a curvilinear triangle profile, slats suitable for filling the gaps jointingly between said layers.
  • Figure 1 of this drawing shows very schematically a suspension bridge to which the invention is applicable.
  • Figure 2 shows the partial cross section of a suspension device according to the invention included by such a bridge.
  • Figure 3 shows a detail on a larger scale of this cut.
  • Figures 4 and 5 show two alternative embodiments a ribbed sheet of bracing conforming to the invention fitted to the above device.
  • Figure 6 shows a perspective view of a piece of the first of these two sheets.
  • Figure 7 very schematically shows a phase of the manufacturing process according to the invention of the device above suspension.
  • the bridge shown diagrammatically in FIG. 1 comprises, from a share, a carrying cable 1 which rests on two pylons 2 and which is stretched between two anchor blocks 3 and, on the other part, an apron 4 which is suspended from said carrying cable 1 through lines 5.
  • Cable 1 is composed of a plurality of strands individual 7 distributed in a plurality of superimposed layers vertically, each tablecloth comprising a number variable of strands juxtaposed horizontally, this number varying for example three for the two extreme layers ten or fifteen or even more for the middle ground: if the general section of the cable is circular, which is the most frequent case, the number of said layers is the same order of magnitude that the number of strands constituting the middle tablecloth.
  • the strands 7 are automatically staggered, as well visible in Figures 2 and 3, the base of each strand automatically coming into the upper throat formed between two horizontally juxtaposed strands of the immediately below.
  • the gap T thus formed between the three strands considered - and more generally between three strands any mutually contiguous of the whole - present the general shape of a prism whose cross section is delimited by a curvilinear triangle: more precisely, said triangular section is bounded by three arcs of circle of identical rays tangent two by two and curved inward of the triangle.
  • Each strand 7 is advantageously of a type self-protected, that is to say constituted by a plurality of twisted wires 8 ( Figure 3) housed inside a sheath 9 with the interposition of a protective product 10 such than an epoxy resin, wax or grease.
  • the sheath 9 is generally constituted by a incompressible product, but with a certain flexibility, such as high density polyethylene (HDPE) or a polyolefin.
  • HDPE high density polyethylene
  • polyolefin a polyolefin
  • the contacts between the different strands 7 are then established according to very narrow P ranges, and even theoretically linear, which extend longitudinally the along said strands.
  • Each gap T is then delimited by three sheath portions 9 each extending transversely between two successive ranges P.
  • the interstices T are empty and the load C applied by the lines 5 on the cable 1 by means of the collars 6 is transmitted to the various strands 7 constituting said cable at the level of only P ranges.
  • the transmission in question may give rise to poorly controlled local crushing, resulting in an irregular distribution of stresses in the different strands 7.
  • the invention overcomes this drawback by filling the interstices T in each section, of the cable 1, intended to be surrounded by a collar 6.
  • This filling is carried out using elements of filling whose volume is practically complementary that of the interstices to be filled.
  • Said element here consists of sheets 11 ribbed by parallel slats 12 projecting alternately on their two faces, each slat having the shape of one of the interstices T, that is to say that of a prism whose base is delimited by a triangle curvilinear.
  • each sheet 11 which connect between them two successive ribs or slats 12 have a width corresponding to the mutual spacing of two interstices T in cable 1.
  • each trigger guard can be very small, and for example of the order of 0.1 mm or even less: experience shows that the tensile strength of also thin plastic sheets is widely sufficient to ensure the consistency required for such sheet during handling.
  • the leaves in question are advantageously made of the same material as the sheaths 9, but this material could be different while being of course compatible with that constituting said sheaths.
  • the leaves obtained are in the form general of blinds or roller shutters with parallel slats (see Figure 6) and can be delivered, like these, in rolls can be dispensed on site on request.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Ropes Or Cables (AREA)
  • Supports For Pipes And Cables (AREA)
  • Laminated Bodies (AREA)
  • Tents Or Canopies (AREA)

Claims (8)

  1. Aufhängevorrichtung für Bauwerke, umfassend ein Tragkabel (1), welches durch seitliches Nebeneinanderfügen mehrerer Litzen (7) gebildet ist, die in übereinander liegenden Lagen angeordnet sind, sowie Hänger (5), die an diesem Kabel mittels Ringen (6) befestigt und dazu ausgelegt sind, die Last (C) des Bauwerks an das Kabel zu übertragen, wobei eine Zwischenfolie (11) zwischen den im Inneren jedes Rings (6) liegenden Abschnitten von wenigstens zwei der übereinander liegenden Lagen von Litzen (7) des Tragkabels eingefügt ist,
    dadurch gekennzeichnet,
    dass die Zwischenfolie (11) an ihren zwei Seiten alternierend mittels paralleler Verstrebungsleisten (12) gerippt ist, die ein krummliniges Dreiecksprofil aufweisen, wobei die Leisten dazu ausgelegt sind, nebeneinander liegend die zwischen diesen Lagen enthaltenen Lücken (T) auszufüllen.
  2. Aufhängevorrichtung nach Anspruch 1, betreffend ein Bauwerk, bei welchem jede Litze (7) von einer Ummantelung (9) aus flexiblem Material umgeben ist,
    dadurch gekennzeichnet,
    dass die Zwischenfolie (11) aus dem gleichen Material wie diese Ummantelung gebildet ist.
  3. Aufhängevorrichtung nach Anspruch 2,
    dadurch gekennzeichnet,
    dass das flexible Material hochdichtes Polyethylen oder ein Polyolefin ist.
  4. Aufhängevorrichtung nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet,
    dass die verdünnten Bereiche (13) der Zwischenfolie (11), die zwischen ihren Rippen (12) enthalten sind, eine Dicke von nicht wesentlich mehr als 0,1 mm aufweisen.
  5. Gerippte Verstrebungsfolie (11) für eine Aufhängevorrichtung nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet,
    dass sie an ihren zwei Flächen alternierend parallele Rippen oder Leisten (12) umfasst, welche die allgemeine Gestalt von Prismen mit einer durch ein krummliniges Dreieck begrenzten Basis aufweisen, wobei die Leisten dazu ausgelegt sind, die Lücken (T) auszufüllen, die zwischen den mehreren nebeneinander liegenden Litzen (7) enthalten sind, aus denen das Tragkabel (1) der Vorrichtung gebildet ist.
  6. Verfahren zur Herstellung einer gerippten Verstrebungsfolie nach Anspruch 5,
    dadurch gekennzeichnet,
    dass man diese Folie einstückig durch Extrudieren herstellt.
  7. Verfahren zur Herstellung einer gerippten Verstrebungsfolie nach Anspruch 5,
    dadurch gekennzeichnet,
    dass man durch Extrudieren jede der ein krummliniges Dreiecksprofil aufweisenden Leisten (12) herstellt, und dass man diese Leisten alternierend auf beiden Seiten einer dünnen Folie aufklebt.
  8. Verfahren zur Montage einer gerippten Verstrebungsfolie nach Anspruch 5,
    gekennzeichnet durch die folgende Arbeitsschrittfolge:
       Vor der Montage eines Rings (6) an den zu seiner Aufnahme bestimmten Abschnitt des Kabels (1) beabstandet man nacheinander jeweils zwei der übereinander liegenden Lagen von Litzen (7), die den Abschnitt bilden, dann führt man horizontal in jeden der Leerräume (E), die derart nacheinander zwischen zwei Lagen freigelegt werden, eine Bahn der Verstrebungsfolie (11) mit hinreichender Oberfläche ein, dann nähert man die zwei Lagen vertikal einander an, was dazu führt, dass die Rippen (12) der Folie die zwischen diesen Lagen enthaltenen Lücken (T) ausfüllen, und nachdem man derart alle zwischen diesen Lagen enthaltenen Lücken ausgefüllt hat, bringt man den Aufhängering (6) an dem derart ausgestatteten Abschnitt des Kabels (1) an.
EP97400238A 1996-02-06 1997-02-03 Aufhängevorrichtung für Bauwerke und Verfahren zum Herstellen Expired - Lifetime EP0789110B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9601405 1996-02-06
FR9601405A FR2744467B1 (fr) 1996-02-06 1996-02-06 Dispositif de suspension pour ouvrage de genie civil et procede de construction

Publications (2)

Publication Number Publication Date
EP0789110A1 EP0789110A1 (de) 1997-08-13
EP0789110B1 true EP0789110B1 (de) 2001-04-11

Family

ID=9488876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97400238A Expired - Lifetime EP0789110B1 (de) 1996-02-06 1997-02-03 Aufhängevorrichtung für Bauwerke und Verfahren zum Herstellen

Country Status (14)

Country Link
EP (1) EP0789110B1 (de)
JP (1) JPH09310307A (de)
KR (1) KR970062199A (de)
AR (1) AR005623A1 (de)
AT (1) ATE200533T1 (de)
AU (1) AU709875B2 (de)
BR (1) BR9700896A (de)
DE (1) DE69704506T2 (de)
DK (1) DK0789110T3 (de)
ES (1) ES2156343T3 (de)
FR (1) FR2744467B1 (de)
GR (1) GR3035955T3 (de)
NO (1) NO970304L (de)
PT (1) PT789110E (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10162897A1 (de) * 2001-11-19 2003-05-28 Maurer Friedrich Soehne Seildämpfer

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2777296B1 (fr) 1998-04-10 2000-06-16 Freyssinet Int Stup Dispositif de suspension pour un ouvrage de construction
FR2780127B1 (fr) 1998-06-19 2000-09-08 Freyssinet Int Stup Procede et dispositif d'accrochage d'un element transmetteur de charge sur un cable, et pont suspendu comportant de tels dispositifs
EP1013830A1 (de) 1998-12-24 2000-06-28 Freyssinet International Stup Anordnung und Verfahren zum Verbinden eines Bauelements und einer Kabelstruktur und Hängebrücke mit solchen Anordnungen
FR2798408B1 (fr) 1999-09-15 2002-01-18 Freyssinet Int Stup Cable a fils paralleles pour structure d'ouvrage de construction, ancrage d'un tel cable, et procede d'ancrage
FR2832479B1 (fr) * 2001-11-19 2006-05-26 Maurer Friedrich Soehne Dispositif d'amortissement pour cable
KR100974068B1 (ko) * 2009-07-16 2010-08-04 (주)평화엔지니어링 현수교 바 행어장치 및 이를 이용한 현수교 변위제어방법
KR101299963B1 (ko) * 2011-11-11 2013-08-26 대림산업 주식회사 콤팩트 멀티-스트랜드 케이블의 가설방법
CN107525496B (zh) * 2017-07-27 2019-12-31 中铁大桥局集团有限公司 超大跨径悬索桥缆索垂度测量装置及其测量方法
CN112144423B (zh) * 2020-09-23 2022-06-17 中国铁建投资集团有限公司 一种斜拉索的放松拆除方法

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DE759490C (de) * 1941-07-29 1951-11-29 Dortmunder Union Brueckenbau A Verbindung der Haenger mit dem Tragkabel von Haengebruecken
JPS57121684A (en) * 1980-12-27 1982-07-29 Shinko Wire Co Ltd Method and apparatus for producing wire rope with filler
JPS6018114U (ja) * 1983-07-12 1985-02-07 株式会社神戸製鋼所 吊橋ケ−ブルの保護カバ−
JPS6018115U (ja) * 1983-07-15 1985-02-07 株式会社春本鉄工所 ケ−ブルカバ−の継手
JPS60154405U (ja) * 1984-03-26 1985-10-15 株式会社　春本鉄工所 橋梁ケ−ブルの外装材
DE3734953C2 (de) * 1987-03-13 1994-02-24 Dyckerhoff & Widmann Ag Abstandhalter für ein spannbares Zugglied
FR2623551B1 (fr) * 1987-11-25 1992-04-24 Freyssinet Int Stup Perfectionnements aux haubans et a leurs composants
JPH07268810A (ja) * 1994-03-28 1995-10-17 Nippon Steel Corp 吊り橋の主ケーブルの防食方法
JP2771775B2 (ja) * 1994-07-07 1998-07-02 川鉄テクノワイヤ株式会社 被覆付きめっきｐｃ鋼より線
KR100759490B1 (ko) * 2006-06-24 2007-09-18 재단법인서울대학교산학협력재단 비결정적 펄스 기법을 이용한 고효율 선형 전력증폭 시스템
JP3149783U (ja) * 2008-11-10 2009-04-16 井上　修 スプレー缶のガス抜き器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10162897A1 (de) * 2001-11-19 2003-05-28 Maurer Friedrich Soehne Seildämpfer

Also Published As

Publication number Publication date
ATE200533T1 (de) 2001-04-15
AR005623A1 (es) 1999-06-23
AU1254597A (en) 1997-08-14
ES2156343T3 (es) 2001-06-16
GR3035955T3 (en) 2001-08-31
BR9700896A (pt) 1998-12-08
DE69704506D1 (de) 2001-05-17
KR970062199A (ko) 1997-09-12
DK0789110T3 (da) 2001-08-13
FR2744467B1 (fr) 1998-04-03
EP0789110A1 (de) 1997-08-13
PT789110E (pt) 2001-09-28
AU709875B2 (en) 1999-09-09
DE69704506T2 (de) 2002-03-28
FR2744467A1 (fr) 1997-08-08
NO970304D0 (no) 1997-01-24
NO970304L (no) 1997-08-07
JPH09310307A (ja) 1997-12-02

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