EP0914521B1 - Dispositif pour amortir les vibrations d'un cable - Google Patents
Dispositif pour amortir les vibrations d'un cable Download PDFInfo
- Publication number
- EP0914521B1 EP0914521B1 EP97935609A EP97935609A EP0914521B1 EP 0914521 B1 EP0914521 B1 EP 0914521B1 EP 97935609 A EP97935609 A EP 97935609A EP 97935609 A EP97935609 A EP 97935609A EP 0914521 B1 EP0914521 B1 EP 0914521B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ring
- cable
- resilient
- visco
- flexible container
- 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
Links
Images
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
Definitions
- the present invention relates to a device vibration dampening of a cable. She finds a particular but not exclusive application in the field civil engineering works whose structure uses such cables, for example suspension or cable-stayed bridges.
- cables or shrouds are subjected to vibrations due to wind and / or rain or to the circulation of vehicles on deck.
- the invention relates more precisely to a device comprising a first member surrounding a section of the cable and secured to said section, a second member, connected to an element to which a portion of the cable is fixed, and placed around the first organ, and damping means placed between the first and second organs.
- a device of this type for absorbing the vibrations of a shroud, is described in the European patent EP 0 343 054A.
- the two organs define a cavity ring finger filled with a viscous substance providing the desired amortization during relative movements of two organs.
- An object of the present invention is to provide a damping device for a live cable, responding in a simple and reliable way to sealing problems, and whose development is facilitated.
- the invention thus provides a device depreciation of the type indicated in the introduction, in which the damping means comprise on the one hand a ring elastic or viscoelastic resting on the first organ and on the second member, on the other hand, a flexible tank containing a viscous substance, this flexible tank being housed in an annular compartment formed between the first and second organs.
- the flexible tank constitutes a chamber constant volume damping for which the tightness is easily achieved. Cable vibrations are effectively mitigated by the combined effect of the ring elastic or viscoelastic and viscous damping provided by the substance contained in the flexible tank. The dissipation of vibrational energy results from displacements of the viscous substance in the tank flexible, stressed when the cable vibrates in relation to the element to which it is attached.
- the reservoir flexible consists of a hose wound in the compartment annular. We can thus adapt to different dimensions cable or shroud to be damped, by simply adjusting the hose length.
- the elastic or viscoelastic ring can consist of two generally semi-cylindrical parts which can be fixed to each other by means of pins substantially parallel to the cable section, assembly bolts or still a tightening belt.
- each of these parts comprises several metal half-rings embedded in a material elastic or viscoelastic molded, the ends of half-rings protruding from the molded material and being respectively provided with assembly means such as pinout holes.
- each piece has two outer half-rings of same diameter, located on both sides, a half-ring inner of smaller diameter relative to the direction of the cable section. This is the flexibility of the elastic or viscoelastic material between the half-ring inner and outer half-rings which allows the relative movement of the cable section relative to the second organ, while exerting a return effort towards the normal position.
- Figure 1 schematically shows where a damping device can be placed according to the invention on the stay cable 6 of a structure 8 such as a bridge wire.
- the stay cable is anchored at its two ends on respective blocks 10 integral with foundations or appropriate structural elements 12.
- the device damping is placed near the lower end 14 of the stay cable 6, anchored in the deck 12 of the bridge.
- a similar structure can be placed near from the upper end of the stay cable 6, anchored in a pylon from the bridge.
- the end 14 of the guy wire passes through a guide rigid tubular 16 fixed to the anchor block 10.
- FIGs 2 and 3 illustrate a possible mounting of the inner tube 20 on the shroud 6 in the case where the latter consists of strands gathered in a section bundle hexagonal.
- the tube 20 consists of two semi-cylindrical portions 20a, 20b each belonging to a shell respective.
- Each of the shells has three plates 34 which are applied against sides of the section hexagonal shroud, with interposition of a strip of glue 36.
- Longitudinal shims 38 are welded between the semi-cylindrical portion 20a and the plates 34, in the center of these last.
- the plates 34 have two axial ends protruding from the tube 20. At these ends, both shells have edges side 40 allowing their assembly by means of screws 42. Tightening the screws 42 makes it possible to block the tube 20 on the stay section 6.
- the outer tube 22 is presented as a box cylindrical which, in service, is fixed to the tubular guide 16 anchored to the foundation.
- the outer tube 22 presents towards the lower end of the shroud a flange 46 bolted on a complementary flange 48 provided at the outlet of the guide tubular 16.
- the elastic ring 24 is made up of two shaped halves general semi-cylindrical assembled after their implementation place on the inner tube 20.
- Such a half of a ring 50 is shown on the figure 4. It consists of three metal half-rings 52, 54, 56 embedded by molding in an elastomeric material 58, namely two outer half-rings of the same diameter 52, 54 and an inner half-ring of smaller diameter 56.
- the elastomeric material 58 has a cross section generally V-shaped, the inner half-ring 56 being located at the base of this V, and the two half-rings 52, 54 being located at the ends of the branches of this V.
- the groove 32 is thus defined between the two branches of the V made of elastomeric material capable of compress under the effect of transverse vibrations of the guy 6.
- the metal half-rings 52, 54, 56 each have, over the majority of their perimeter, a section rectangular in shape.
- the half-rings 52, 54, 56 each have their two ends 62, 64, 66 which protrude from the material molded elastomer 58.
- One end 62, 64, 66 of each half ring 52, 54, 56 is in the form of a yoke provided with a pinout hole 72, 74, 76, while the other end 63, 65, 67 has a shape complementary to the screed and is provided with a corresponding pin hole 73, 75, 77.
- the pinholes 72-77 allow the assembly of two ring halves 50 using three pairs of pins 82, 84, 86 extending parallel to the direction of the shroud section 6 (see the lower part of the figure 2).
- Half a ring 50 is easily manufactured in injecting the elastomeric material 58 into a form mold appropriate in which we have previously placed the three half-rings 52, 54, 56, then by vulcanizing the elastomeric material.
- the stiffness of the elastic ring 24 can be adjusted according to the dynamic properties sought in playing on the elasticity parameters and the thicknesses of the elastic or viscoelastic molded material.
- the flexible hose 26 is helically wound in compartment 30 delimited on the one hand by the groove 32 of the ring 24, and on the other hand by the inner face of the outer tube 22.
- the hose 26 has a of its closed ends, and its other end which communicates with the outside of compartment 30 by through a bore 90 formed in a spindle 84 of one of the pairs of half-rings outer 54 of the elastic ring 24.
- This end 92 hose 26 is thus accessible to fill the latter with viscous damping substance.
- This substance 28 is typically an oil or other viscous fluid, or a viscous gel whose viscosity is optimized as a function characteristics of the shroud to be amortized.
- the installation of the damping device described above takes place for example as follows.
- the guy wires 6 are installed and anchored at their two ends, passing them through the tubular guide 16 and the outer tube 22.
- the tube 22 is then moved away from the guide 16 to give access to the section of the shroud receiving the device.
- the inner tube 20 is put in place and blocked on the stay section by assembling its two shells and by tightening the screws 42.
- the two halves of the ring 24 are then placed around the inner tube 20, then paperbacks.
- the outer tube 22 is engaged around together, we fill the hose 26 with the oil 28, and we fixes the outer tube 22 on the flange 48 of the guide tubular 16.
- the strand 6 has an envelope external protector, it can be fixed on the end of the outer tube 22 opposite the guide 16.
- Figure 5 shows an alternative embodiment of the invention, in which the ring 24 and the compartment annular where the flexible tank is housed are juxtaposed the along the direction of the shroud section 6.
- the tube interior is divided into two juxtaposed sections 100,101 attached to the shroud as described with reference to the Figure 3.
- One of these sections 100 receives the ring 24 which has the same structure and the same mounting method as previously ( Figure 4), except that the groove 32 is not used to contain the viscous substance tank.
- the other section 101 of the inner tube is provided with two transverse flanges 103,104 at its two ends axial.
- the annular compartment 105 receiving the flexible tank 106 of viscous material 28, is internally delimited by the section 101 of the tube inside, and axially by the two flanges 103,104. Towards the outside, this compartment 105 is delimited by a ring 107 acting like a piston.
- This ring 107 is presented in the form of two half-rings assembled around the shroud during the installation of the device. Outwards, the half-rings have radial protrusions 108 by which they bear against the outer tube 22.
- the flexible tank 106 consists of a pocket occupying the axial length of annular compartment 105 and enveloping the perimeter of the tube section 101.
- This pocket 106 is filled with viscous substance 28 after installation of the assembly by conduits 109 passing through the ring 107 and its outgrowths 108 as shown in FIG. 5.
- the vibrations of the shroud make the piston ring 107 moves radially relative to the tube section 101 and to the flanges 103,104 so that the substance contained in pocket 106 moves into a chamber constant volume and provides the desired amortization.
- a device according to the invention can be used to absorb the vibrations of a cable other than a stay cable, for example a load-bearing cable or a suspension from a suspension bridge or an undersea cable ...
- the portion of the cable attached to a foundation or the like is not necessarily one of its extremities.
- the element to which is fixed this portion can be a foundation or any element of structure, including a network of cables.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Vibration Prevention Devices (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Description
- la figure 1 montre schématiquement comment se place un dispositif selon l'invention près d'une extrémité ancrée d'un hauban ;
- la figure 2 est une vue en coupe axiale d'un dispositif selon l'invention ;
- la figure 3 est une vue en coupe transversale, selon le plan III-III indiqué sur la figure 2, d'un tube intérieur du dispositif, et montrant en outre le plan de coupe II-II de la figure 2 ;
- la figure 4 est une vue en perspective d'une pièce moulée formant la moitié d'un anneau élastique du dispositif représenté sur la figure 2 ; et
- la figure 5 est une vue en coupe axiale d'un autre exemple de réalisation d'un dispositif selon l'invention.
- un tube intérieur 20 dans lequel passe un tronçon du hauban 6, et solidarisé à ce tronçon ;
- un tube extérieur 22 placé autour du tube intérieur 20 ;
- un anneau élastique ou viscoélastique 24 dont une face interne s'appuie contre le tube intérieur 20 et une face externe s'appuie contre le tube extérieur 22 ;
- un réservoir souple tel qu'un boyau 26 contenant une substance visqueuse 28. Dans l'exemple de la figure 2, ce réservoir 26 est logé dans un compartiment annulaire 30 délimité d'une part par une gorge annulaire 32 à profil en V présente sur une face de l'anneau élastique 24, et d'autre part par l'un des tubes 20, 22 (le tube extérieur 22 dans l'exemple représenté).
Claims (10)
- Dispositif pour amortir les vibrations d'un câble sous tension (6), comprenant un premier organe (20;100,101) entourant un tronçon du câble et solidarisé avec ledit tronçon, un second organe (22), relié à un élément (12) auquel est fixée une portion du câble (6), et placé autour du premier organe, et des moyens d'amortissement placés entre les premier et second organes, caractérisé en ce que les moyens d'amortissement comprennent d'une part un anneau élastique ou viscoélastique (24) s'appuyant sur le premier organe (20;100) et sur le second organe (22), et d'autre part un réservoir souple (26,106) contenant une substance visqueuse (28), ce réservoir souple étant logé dans un compartiment annulaire (30;105) et formé entre les premier et second organes.
- Dispositif selon la revendication 1, caractérisé en ce que le réservoir souple consiste en un boyau (26) enroulé dans le compartiment annulaire (30).
- Dispositif selon la revendication 1 ou 2, dans lequel l'anneau élastique ou viscoélastique (24) se compose de deux pièces (50) de forme générale semi-cylindrique.
- Dispositif selon la revendication 3, dans lequel les deux pièces (50) de forme générale semi-cylindrique sont fixées l'une à l'autre au moyen de broches (82,84,86) sensiblement parallèles au tronçon de câble.
- Dispositif selon la revendication 2, 3 ou 4, dans lequel chacune des pièces de forme générale semi-cylindrique (50) comporte plusieurs demi-bagues métalliques (52,54,56) noyées dans une matière élastique ou viscoélastique moulée (58), les extrémités (62-67) des demi-bagues dépassant de la matière moulée (58) et étant respectivement pourvues de moyens d'assemblage (72-77).
- Dispositif selon la revendication 5, dans lequel chacune des pièces de forme générale semi-cylindrique comporte deux demi-bagues extérieures (52,54) de même diamètre, situées de part et d'autre d'une demi-bague intérieure (56) de moindre diamètre relativement à la direction du tronçon du câble, la flexibilité de la matière élastique ou viscoélastique (58) entre la demi-bague intérieure (56) et les demi-bagues extérieures (52,54) autorisant un mouvement relatif du tronçon de câble par rapport au second organe (22).
- Dispositif selon l'une quelconque des revendications précédentes, dans lequel l'anneau élastique ou viscoélastique (24) présente une gorge (32) qui, avec l'un desdits organes (22) délimite ledit compartiment annulaire (30).
- Dispositif selon les revendications 4 et 7, dans lequel l'une des broches (84) comporte un alésage axial (90) donnant accès au réservoir souple (26) pour son remplissage.
- Dispositif selon l'une quelconque des revendications 1 à 6, dans lequel l'anneau élastique ou viscoélastique (24) et le compartiment annulaire (105) où est logé le réservoir souple (106) sont juxtaposés le long de la direction du tronçon de câble.
- Dispositif selon la revendication 9, dans lequel le compartiment annulaire (105) est délimité intérieurement par le premier organe (101), axialement par deux flasques transversaux (103,104) solidaires du premier organe, et extérieurement par une bague (107) prenant appui contre le second organe (22) et déplaçable radialement entre les flasques par rapport au premier organe.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9609449A FR2751673B1 (fr) | 1996-07-26 | 1996-07-26 | Dispositif pour amortir les vibrations d'un cable |
FR9609449 | 1996-07-26 | ||
PCT/FR1997/001374 WO1998004780A1 (fr) | 1996-07-26 | 1997-07-23 | Dispositif pour amortir les vibrations d'un cable |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0914521A1 EP0914521A1 (fr) | 1999-05-12 |
EP0914521B1 true EP0914521B1 (fr) | 2000-04-12 |
Family
ID=9494529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97935609A Expired - Lifetime EP0914521B1 (fr) | 1996-07-26 | 1997-07-23 | Dispositif pour amortir les vibrations d'un cable |
Country Status (13)
Country | Link |
---|---|
US (1) | US6334608B1 (fr) |
EP (1) | EP0914521B1 (fr) |
JP (1) | JP2000515943A (fr) |
CA (1) | CA2260834A1 (fr) |
DE (1) | DE69701700T2 (fr) |
DK (1) | DK0914521T3 (fr) |
ES (1) | ES2146480T3 (fr) |
FR (1) | FR2751673B1 (fr) |
GR (1) | GR3033573T3 (fr) |
HK (1) | HK1019904A1 (fr) |
NO (1) | NO990326L (fr) |
PT (1) | PT914521E (fr) |
WO (1) | WO1998004780A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2226525A1 (fr) | 2007-10-02 | 2010-09-08 | Getzner Werkstoffe Holding GmbH | Dispositif d'amortissement pour amortir les oscillations longitudinales d'éléments étirés |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20014322U1 (de) * | 2000-08-19 | 2002-01-10 | Dyckerhoff & Widmann AG, 81829 München | Abstützung eines freien Zugglieds, insbesondere eines Schrägseils für eine Schrägseilbrücke |
JP2002181130A (ja) * | 2000-12-12 | 2002-06-26 | Sumitomo Rubber Ind Ltd | 制振装置 |
FR2832479B1 (fr) * | 2001-11-19 | 2006-05-26 | Maurer Friedrich Soehne | Dispositif d'amortissement pour cable |
FR2859260B1 (fr) * | 2003-09-03 | 2006-02-24 | Freyssinet Int Stup | Dispositif pour amortir les vibrations d'un cable et procede d'amortissement associe |
WO2007101497A1 (fr) * | 2006-03-09 | 2007-09-13 | Iro Ab | Tensiometre a fil |
US7298672B1 (en) * | 2006-08-22 | 2007-11-20 | Pgs Geophysical | Marine seismic streamer having acoustic isolation between strength members and sensor mounting |
KR100816059B1 (ko) | 2007-03-27 | 2008-03-24 | 케이블텍 주식회사 | 케이블 댐퍼 |
KR100980310B1 (ko) * | 2009-09-11 | 2010-09-06 | 문승 | 케이블 고정용 브라켓 및 그 제조방법 |
CN102733303B (zh) * | 2012-07-06 | 2015-01-14 | 巨力索具股份有限公司 | 用于桥梁斜拉索的弯曲限制器 |
FR3012193B1 (fr) | 2013-10-23 | 2015-12-18 | Soletanche Freyssinet | Dispositif d'amortissement de vibrations d'un cable |
FR3012479B1 (fr) | 2013-10-31 | 2016-01-01 | Soletanche Freyssinet | Dispositif d'amortissement de vibrations de cables d'un systeme de suspension d'ouvrage d'art. |
CH709002A1 (fr) | 2013-12-18 | 2015-06-30 | Vsl Lnternat Ag | Dispositif et procédé d'amortissement par friction. |
CN104652271B (zh) * | 2014-12-22 | 2016-06-15 | 郑州市交通规划勘察设计研究院 | 一种波形钢腹板斜拉桥的拉索组合锚固块 |
FR3033803B1 (fr) * | 2015-03-16 | 2021-01-29 | Soletanche Freyssinet | Dispositif d'amortissement de vibrations d'un cable |
JP2016199860A (ja) * | 2015-04-07 | 2016-12-01 | 住友ゴム工業株式会社 | 橋梁用ゴムダンパー |
CN109056528B (zh) * | 2018-09-25 | 2024-03-12 | 中铁二院工程集团有限责任公司 | 一种铁路上承式钢桁梁悬索桥 |
CN112813798A (zh) * | 2021-02-03 | 2021-05-18 | 兰州铁道设计院有限公司 | 一种用于桥梁横向抗震的组合式耐腐蚀支撑装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4090168A (en) * | 1977-05-17 | 1978-05-16 | The United States Of America As Represented By The Secretary Of The Navy | Solid filled vibration isolation module for a towed sonar array |
DE2823953C2 (de) * | 1978-06-01 | 1985-01-24 | Tünkers Maschinenbau GmbH, 4030 Ratingen | Aufhängevorrichtung für Rüttelbären an einem Lastaufnahmemittel |
DE3434620A1 (de) * | 1984-09-21 | 1986-04-03 | Dyckerhoff & Widmann AG, 8000 München | Abstuetzung eines freien zugglieds, vorzugsweise eines schraegseils einer schraegseilbruecke |
FR2631407A1 (fr) * | 1988-05-16 | 1989-11-17 | Freyssinet Int Stup | Perfectionnements aux dispositifs pour amortir les vibrations des haubans |
US5463193A (en) * | 1992-05-08 | 1995-10-31 | Australia Sonar Systems Pty Ltd | Vibration isolation module |
JPH0673711A (ja) * | 1992-08-26 | 1994-03-15 | V S L Japan Kk | ケーブルの緩衝構造及びその施工方法 |
JP3644510B2 (ja) * | 1995-04-07 | 2005-04-27 | 石川島播磨重工業株式会社 | 高粘性ダンパ |
DE29517250U1 (de) * | 1995-10-31 | 1995-12-14 | Dyckerhoff & Widmann AG, 81902 München | Abstützung eines freien Zugglieds, vorzugsweise eines Schrägseils einer Schrägseilbrücke |
FR2757235B1 (fr) * | 1996-12-16 | 1999-02-19 | Jarret | Procede et dispositif d'amortissement des vibrations transversales de cables de haubanage |
-
1996
- 1996-07-26 FR FR9609449A patent/FR2751673B1/fr not_active Expired - Fee Related
-
1997
- 1997-07-23 JP JP10508550A patent/JP2000515943A/ja active Pending
- 1997-07-23 DK DK97935609T patent/DK0914521T3/da active
- 1997-07-23 PT PT97935609T patent/PT914521E/pt unknown
- 1997-07-23 US US09/230,425 patent/US6334608B1/en not_active Expired - Fee Related
- 1997-07-23 ES ES97935609T patent/ES2146480T3/es not_active Expired - Lifetime
- 1997-07-23 EP EP97935609A patent/EP0914521B1/fr not_active Expired - Lifetime
- 1997-07-23 CA CA002260834A patent/CA2260834A1/fr not_active Abandoned
- 1997-07-23 DE DE69701700T patent/DE69701700T2/de not_active Expired - Fee Related
- 1997-07-23 WO PCT/FR1997/001374 patent/WO1998004780A1/fr active IP Right Grant
-
1999
- 1999-01-25 NO NO990326A patent/NO990326L/no not_active Application Discontinuation
- 1999-11-04 HK HK99105045A patent/HK1019904A1/xx not_active IP Right Cessation
-
2000
- 2000-05-31 GR GR20000401266T patent/GR3033573T3/el not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2226525A1 (fr) | 2007-10-02 | 2010-09-08 | Getzner Werkstoffe Holding GmbH | Dispositif d'amortissement pour amortir les oscillations longitudinales d'éléments étirés |
Also Published As
Publication number | Publication date |
---|---|
GR3033573T3 (en) | 2000-09-29 |
WO1998004780A1 (fr) | 1998-02-05 |
ES2146480T3 (es) | 2000-08-01 |
HK1019904A1 (en) | 2000-03-03 |
FR2751673A1 (fr) | 1998-01-30 |
CA2260834A1 (fr) | 1998-02-05 |
NO990326D0 (no) | 1999-01-25 |
NO990326L (no) | 1999-03-25 |
US6334608B1 (en) | 2002-01-01 |
JP2000515943A (ja) | 2000-11-28 |
DE69701700T2 (de) | 2000-11-23 |
DE69701700D1 (de) | 2000-05-18 |
PT914521E (pt) | 2000-08-31 |
FR2751673B1 (fr) | 1998-10-02 |
EP0914521A1 (fr) | 1999-05-12 |
DK0914521T3 (da) | 2000-09-25 |
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FR2797834A1 (fr) | Dispositif de guidage de cable amortissant les vibrations |
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