EP0789110A1 - Aufhängevorrichtung für Bauwerke und Verfahren zum Herstellen - Google Patents

Aufhängevorrichtung für Bauwerke und Verfahren zum Herstellen Download PDF

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Publication number
EP0789110A1
EP0789110A1 EP97400238A EP97400238A EP0789110A1 EP 0789110 A1 EP0789110 A1 EP 0789110A1 EP 97400238 A EP97400238 A EP 97400238A EP 97400238 A EP97400238 A EP 97400238A EP 0789110 A1 EP0789110 A1 EP 0789110A1
Authority
EP
European Patent Office
Prior art keywords
sheet
strands
cable
slats
suspension device
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.)
Granted
Application number
EP97400238A
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English (en)
French (fr)
Other versions
EP0789110B1 (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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Application filed by Freyssinet International STUP SA filed Critical Freyssinet International STUP SA
Publication of EP0789110A1 publication Critical patent/EP0789110A1/de
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Publication of EP0789110B1 publication Critical patent/EP0789110B1/de
Anticipated expiration legal-status Critical
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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 carrying cables or guy wires themselves carried by pylons or the like, the suspension of each sub-assembly being effected by means of hangers hung by collars to said carrying cables or shrouds.
  • the cables are formed by lateral juxtaposition of identical multiple strands distributed in superimposed layers, the word "strand” being adopted here, for the sake of simplification but in a nonlimiting manner, to designate strands as well individual or “strands” proper, as cables or bundles of such strands or even as bars.
  • each strand has a generally cylindrical shape and the mutual contacts of the strands with each other are made along narrow, even linear, longitudinal ranges of these strands.
  • each hanger The transverse load exerted on the cable by each hanger, and more precisely by the collar disposed 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 areas are made of a relatively flexible material such as that constituting a strand sheath of the self-protected type.
  • said strands are not all stressed equally by said load: some of said strands are therefore relatively overloaded, which requires a overall oversizing of the cable and increases the cost price of this cable and the structure it equips.
  • German patent 759 490 it was proposed to interpose a trim sheet between the sections, located inside the collar, of the superimposed layers of strands.
  • This trim sheet has the general shape of an inverted T, the transverse bar of which serves as a support stop to prevent the collar from descending along the carrying cable.
  • the vertical bar of this T has the width of the strands of strands between which it is inserted. Its function is to provide an additional friction surface to strengthen the anchoring of the collar on the carrying cable: the overall friction which ensures this anchoring does not only result from the contact surface between the internal face of the collar and the periphery of the cable, but also additional surfaces thus created between the strand plies and the trim sheets. Consequently, this lining sheet is stressed in tension, and does not contribute to harmonizing the stresses exerted on the different strands inside the collar.
  • An object of the present invention is to better distribute between the strands the loads exerted at the level of the hanger collars.
  • the invention thus proposes a suspension device for a civil engineering structure, comprising a carrying cable itself constituted by lateral juxtaposition of multiple strands distributed in superimposed layers, and lines hung on this cable by collars and suitable for transmitting to said audit cable the load of the structure, an intermediate sheet being interposed between the sections, located inside each collar, of at least two superimposed plies of strands of the carrying cable, in which the intermediate sheet is ribbed alternately on its two faces by parallel bracing slats having a curvilinear triangle profile, slats suitable for filling the gaps in joint between said layers.
  • the procedure is advantageously as follows: before mounting a collar on the section of cable intended to receive it, the layers of superimposed strands are removed two by two constituting said section, then horizontally introduced into each of the spaces thus cleared successively between two layers a section of sufficient area of the bracing sheet, then the two said layers are brought together vertically, which makes it fill by the ribs of the sheet the interstices between these layers, and after having thus filled all the interstices between the layers, the suspension collar is mounted on the section of cable thus equipped.
  • FIG. 1 of this drawing very schematically shows 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 on a larger scale a detail of this section.
  • Figures 4 and 5 show two alternative embodiments of a ribbed bracing sheet according to the invention fitted to the above device.
  • Figure 6 shows in perspective view a piece of the first of these two sheets.
  • Figure 7 shows very schematically a phase of the manufacturing process according to the invention of the above suspension device.
  • the bridge shown diagrammatically in FIG. 1 comprises, on the one hand, a carrying cable 1 which rests on two pylons 2 and which is stretched between two anchoring blocks 3 and, on the other hand, an apron 4 which is suspended from said cable carrier 1 via lines 5.
  • the cable 1 is composed of a plurality of individual strands 7 distributed in a plurality of plies vertically superimposed, each ply comprising a variable number of strands juxtaposed horizontally, this number varying for example from three for the two extreme plies to ten or fifteen or even more for the central ply: if the general section of the cable is circular, which is the most frequent case, the number of said plies is of the same order of magnitude as the number of strands constituting the central ply.
  • the strands 7 are automatically placed in staggered rows, as clearly visible in FIGS. 2 and 3, the base of each strand coming automatically to be housed in the upper groove formed between two strands horizontally juxtaposed with the immediately lower ply .
  • the interstice T thus formed between the three strands considered - and more generally between any three strands mutually contiguous to the assembly - has the general shape of a prism whose cross section is delimited by a curvilinear triangle: more precisely, said section triangular is delimited by three arcs of circle of identical rays tangent two by two and curved towards the inside of the triangle.
  • Each strand 7 is advantageously of a self-protected type, that is to say constituted by a plurality of twisted wires 8 (FIG. 3) housed inside a sheath 9 with the interposition of a protective product 10 such than an epoxy resin, wax or grease.
  • a protective product 10 such than an epoxy resin, wax or grease.
  • the sheath 9 is generally formed by an incompressible product, but having a certain flexibility, such as high density polyethylene (HDPE) or a polyolefin.
  • HDPE high density polyethylene
  • polyolefin a polyolefin
  • the contacts between the various strands 7 are then established according to very narrow, and even theoretically linear, ranges P which extend longitudinally along said strands.
  • Each gap T is then delimited by three portions of sheath 9 each extending transversely between two successive areas P.
  • the interstices T are empty and the load C applied by the lines 5 to the cable 1 by means of the collars 6 is transmitted to the various strands 7 constituting said cable at the level of only areas P.
  • the transmission in question may give rise to poorly controlled local crushing, resulting in an irregular distribution of the stresses in the different strands 7.
  • the invention overcomes this drawback by filling the gaps T in each section of the cable 1, intended to be surrounded by a collar 6.
  • This filling is carried out using filling elements whose volume is practically complementary to that of the interstices to be filled.
  • Said element is here constituted by 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 curvilinear triangle.
  • each sheet 11 which interconnect two successive ribs or slats 12 have a width corresponding to the mutual spacing of two interstices T in the cable 1.
  • each trigger guard can be very small, and for example of the order of 0.1 mm or even less: experience has shown that the tensile strength of such thin plastic sheets is largely sufficient to ensure the consistency required for such a sheet during handling.
  • the sheets in question are advantageously made of the same material as the sheaths 9, but this material could be different while of course being compatible with that constituting said sheaths.
  • the sheets obtained are in the general form of blinds or rolling shutters with parallel slats (see Figure 6) and can be delivered, like these, in rolls which can be delivered to the site on request.
  • a jacket 14 for example made of HDPE, and, against the inner face of this shirt, a layer 15 made of a material more deformable than that constituting the shirt and offering good resistance to compression, such as neoprene.
  • the projecting portion of the sheet 11 is then sectioned at S.
  • the invention is in no way limited to those of its modes of application and embodiments which have been more especially envisaged; on the contrary, it embraces all of its variants, in particular those in which the supporting cables are constituted by oblique shrouds.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Ropes Or Cables (AREA)
  • Laminated Bodies (AREA)
  • Tents Or Canopies (AREA)
  • Supports For Pipes And Cables (AREA)
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 true EP0789110A1 (de) 1997-08-13
EP0789110B1 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 (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2777296A1 (fr) 1998-04-10 1999-10-15 Freyssinet Int Stup Dispositif de suspension pour un ouvrage de construction
FR2780127A1 (fr) 1998-06-19 1999-12-24 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
FR2798408A1 (fr) * 1999-09-15 2001-03-16 Freyssinet Int Stup Cable a fils paralleles pour structure d'ouvrage de construction, ancrage d'un tel cable, et procede d'ancrage
FR2832479A1 (fr) * 2001-11-19 2003-05-23 Maurer Friedrich Soehne Dispositif d'amortissement pour cable

Families Citing this family (5)

* 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
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE759490C (de) * 1941-07-29 1951-11-29 Dortmunder Union Brueckenbau A Verbindung der Haenger mit dem Tragkabel von Haengebruecken
DE3149783A1 (de) * 1980-12-27 1982-07-08 Shinko Kosen Kogyo K.K., Amagasaki, Hyogo Drahtseil
EP0323285A1 (de) * 1987-11-25 1989-07-05 Freyssinet International (Stup) Schrägseile und deren Verankerung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE759490C (de) * 1941-07-29 1951-11-29 Dortmunder Union Brueckenbau A Verbindung der Haenger mit dem Tragkabel von Haengebruecken
DE3149783A1 (de) * 1980-12-27 1982-07-08 Shinko Kosen Kogyo K.K., Amagasaki, Hyogo Drahtseil
EP0323285A1 (de) * 1987-11-25 1989-07-05 Freyssinet International (Stup) Schrägseile und deren Verankerung

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0950762A1 (de) * 1998-04-10 1999-10-20 Freyssinet International (Stup) Aufhängevorrichtung für Bauwerke
FR2777296A1 (fr) 1998-04-10 1999-10-15 Freyssinet Int Stup Dispositif de suspension pour un ouvrage de construction
US6301735B1 (en) 1998-06-19 2001-10-16 Freyssinet International Stup Method and device for attaching a load-transmitting element to a cable, and suspension bridge comprising such devices
FR2780127A1 (fr) 1998-06-19 1999-12-24 Freyssinet Int Stup Procede et dispositif d'accrochage d'un element transmetteur de charge sur un cable, et pont suspendu comportant de tels dispositifs
WO1999067550A1 (fr) 1998-06-19 1999-12-29 Freyssinet International (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
WO2000039401A1 (fr) * 1998-12-24 2000-07-06 Freyssinet International Stup Dispositif et procede de fixation entre un element de construction et un cable de structure
EP1284324A2 (de) 1998-12-24 2003-02-19 Freyssinet International Stup Anordnung und Verfahren zum Verbinden eines Bauelements und einer Kabelstruktur und Hängebrücke mit solchen Anordnungen
US6523207B1 (en) 1998-12-24 2003-02-25 Freyssinet International (Stup) Fixing device and method between a structural element and a suspension cable
EP1284324A3 (de) * 1998-12-24 2003-02-26 Freyssinet International Stup Anordnung und Verfahren zum Verbinden eines Bauelements und einer Kabelstruktur und Hängebrücke mit solchen Anordnungen
US6715176B2 (en) 1998-12-24 2004-04-06 Freyssinet International (Stup) Device and method for fixing together a construction element and structural cable
FR2798408A1 (fr) * 1999-09-15 2001-03-16 Freyssinet Int Stup Cable a fils paralleles pour structure d'ouvrage de construction, ancrage d'un tel cable, et procede d'ancrage
WO2001020096A1 (fr) * 1999-09-15 2001-03-22 Freyssinet International (Stup) Cable a fils paralleles pour structure d'ouvrage de construction, ancrage d'un tel cable, et procede d'ancrage
US6560807B1 (en) 1999-09-15 2003-05-13 Freyssinet International (Stup) Cable with parallel wires for building work structure, anchoring for said cable, and anchoring method
US6658684B2 (en) 1999-09-15 2003-12-09 Freyssinet International (Stup) Cable with parallel wires for building work structure, anchoring for said cable and anchoring method
FR2832479A1 (fr) * 2001-11-19 2003-05-23 Maurer Friedrich Soehne Dispositif d'amortissement pour cable

Also Published As

Publication number Publication date
NO970304L (no) 1997-08-07
DE69704506T2 (de) 2002-03-28
JPH09310307A (ja) 1997-12-02
NO970304D0 (no) 1997-01-24
ES2156343T3 (es) 2001-06-16
FR2744467B1 (fr) 1998-04-03
AR005623A1 (es) 1999-06-23
AU1254597A (en) 1997-08-14
DE69704506D1 (de) 2001-05-17
GR3035955T3 (en) 2001-08-31
KR970062199A (ko) 1997-09-12
FR2744467A1 (fr) 1997-08-08
PT789110E (pt) 2001-09-28
BR9700896A (pt) 1998-12-08
EP0789110B1 (de) 2001-04-11
DK0789110T3 (da) 2001-08-13
AU709875B2 (en) 1999-09-09
ATE200533T1 (de) 2001-04-15

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