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EP0350822A2 - Procédé de rénovation de l'anti-corrosion des membres en traction de ponts ou constructions similaires haubanées et dispositif pour la mise en oeuvre du procédé - Google Patents

Procédé de rénovation de l'anti-corrosion des membres en traction de ponts ou constructions similaires haubanées et dispositif pour la mise en oeuvre du procédé Download PDF

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Publication number
EP0350822A2
EP0350822A2 EP89112544A EP89112544A EP0350822A2 EP 0350822 A2 EP0350822 A2 EP 0350822A2 EP 89112544 A EP89112544 A EP 89112544A EP 89112544 A EP89112544 A EP 89112544A EP 0350822 A2 EP0350822 A2 EP 0350822A2
Authority
EP
European Patent Office
Prior art keywords
annular space
tension member
coating agent
liquid coating
tension
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.)
Withdrawn
Application number
EP89112544A
Other languages
German (de)
English (en)
Other versions
EP0350822A3 (fr
Inventor
Heinrich Fischer
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.)
BBV Systems GmbH
Original Assignee
Bilfinger und Berger Vorspanntechnik GmbH
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 Bilfinger und Berger Vorspanntechnik GmbH filed Critical Bilfinger und Berger Vorspanntechnik GmbH
Publication of EP0350822A2 publication Critical patent/EP0350822A2/fr
Publication of EP0350822A3 publication Critical patent/EP0350822A3/fr
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing

Definitions

  • the invention relates to a method and a device for renewing the corrosion protection of tension members of bridges and similarly braced structures.
  • tension members Although such tension members are covered, corrosion formers diffuse through the cover to the tension member. Often, a source of damage cannot be identified in time or there is no possibility of checking the extent of the source of damage without destroying the casing.
  • the expert can give no guarantee that there are air pockets in the wire interstices of the tension members.
  • a method that proposes to surround the tension members with a cover made of sheet steel, the annular gap between cover and tension member being filled with a liquid in which additives protecting against corrosion are dissolved.
  • This liquid also contains moisture-penetrating, corrosion-preventing additives which dissolve the moisture and cause it to sink within the liquid.
  • Such a method is very complex and is burdened with high maintenance costs, since the corrosion protection liquid which is always present also the one set sealing elements impaired. Furthermore, a compensation vessel must be arranged at the end of the tension members, which keeps the filling levels of the annular gaps constant. Another disadvantage of such a method is that an alarm device is required to control the system, which further reports a leak in the casing.
  • DE-PS 33 43 352 describes a composite cable for prestressed concrete plants, in which the cladding tube is composed of individual steel tube sections which have external threads at their ends and are screwed together with threaded sockets, the trumpet-shaped extensions each having a one-piece steel body which has an extension tube has an external thread for screwing to the cladding tube and other end pieces.
  • DE-OS 34 37 107 describes a tension member tensioned between components and anchored relative to them, in particular stay cable for a cable-stayed bridge, from a number of individual elements arranged together in a tubular envelope, the cavities between the individual elements and the tubular envelope from after tensioning material introduced into the tension member, for example cement mortar, and the individual elements are provided with a coating of plastic over their entire length including their course within the anchoring devices.
  • DE-OS 34 37 350 describes a cable for buildings, in particular inclined cable bridges, consisting of several bundled tension elements which are surrounded by a cladding tube, the cavity between tension elements and cladding tube being pressed with an injection material, preferably cement mortar, and the cladding tube made of at least one strip of material is formed and each has a seam at adjacent strip longitudinal edges.
  • DE-PS 36 29 704 describes corrosion protection for a tension member formed from steel ropes, parallel wire bundles or parallel strand bundles, in which the sheathing is held at a distance from the tension member with the aid of spacers, so that an annular gap surrounding the tension member results and on A compensating expansion device is arranged at the upper end of the sheathing, furthermore the annular gap is filled with a corrosion protection liquid and this contains moisture-infiltrating and corrosion-preventing admixtures in the form of gas phase inhibitors, the annular gap is sealed against this at both ends of the tension member, and a compensation vessel is also located at the upper end of the tension member is located and a silica gel sluice that draws moisture out of the incoming air is arranged above the expansion tank.
  • the invention is based on the object of providing a method and a device of the type mentioned at the outset, the elimination of corrosion formers within the tension members and a reliable control being possible without high maintenance costs.
  • Two-component resins can also be suitable as coating agents, these being drained off again before hardening.
  • two-component resins are suitable, for example, which have a setting time of, for example, 10 hours.
  • Waxes in particular ester waxes, which contain both hydrophilic and hydrophobic components in the molecule are also suitable as liquid coating agents.
  • the gas filling can optionally also be replaced in whole or in part by a so-called fluid, that is to say, for example, by a preferably easily movable liquid.
  • Figure 1 shows a bridge structure 8, which is tensioned with tension members 3, preferably consisting of steel ropes.
  • the tension members 3 are covered with a protective tube 4.
  • the protective tubes 4 are preferably tightly closed in the area of the high point 7 of the bridge structure 8, while in the low point area 9 of the bridge structure 8 the protective tubes 4 open into a suction or pump device 10.
  • the suction and pumping device 10 can be designed in such a way that it serves to attach a pump. However, make sure that the connection element is tightly sealed after removing the pump.
  • Figure 2 shows a cross section through a tension member 3, which is covered with a protective tube 4.
  • the annular space 1 is created by spacers 6.
  • the annular space 1 is again filled under vacuum with a coating agent 2, preferably made of synthetic resin (see FIG. 4).
  • a particular advantage of this method is that the coating agent 2 penetrates into the spaces 13 of the tension member 3 while favoring the vacuum and thus coats the individual tension members 3a, 3b etc.
  • the coating agent 2 is emptied again from the protective tube 4, so that the tension member 3 with its individual tension members 3a, 3b etc. is coated with the coating agent 2, but the annular space 1 is retained (Fig. 5).
  • FIG. 5a shows an enlargement of the detail labeled "A" in FIG.
  • the annular space 1 thus obtained can be mixed with a control medium, i.e. a control fluid or a control liquid 5 are filled (FIG. 6), which is then analyzed for its constituents (any corrosion agents that may occur).
  • a control medium i.e. a control fluid or a control liquid 5 are filled (FIG. 6)

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Bridges Or Land Bridges (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP89112544A 1988-07-15 1989-07-10 Procédé de rénovation de l'anti-corrosion des membres en traction de ponts ou constructions similaires haubanées et dispositif pour la mise en oeuvre du procédé Withdrawn EP0350822A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883823964 DE3823964A1 (de) 1988-07-15 1988-07-15 Verfahren zur erneuerung des korrosionsschutzes von zuggliedern von bruecken und gleichartig verspannten bauwerken sowie vorrichung zur durchfuehrung des verfahrens
DE3823964 1988-07-15

Publications (2)

Publication Number Publication Date
EP0350822A2 true EP0350822A2 (fr) 1990-01-17
EP0350822A3 EP0350822A3 (fr) 1990-04-18

Family

ID=6358709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89112544A Withdrawn EP0350822A3 (fr) 1988-07-15 1989-07-10 Procédé de rénovation de l'anti-corrosion des membres en traction de ponts ou constructions similaires haubanées et dispositif pour la mise en oeuvre du procédé

Country Status (2)

Country Link
EP (1) EP0350822A3 (fr)
DE (1) DE3823964A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2725462A1 (fr) * 1994-10-06 1996-04-12 Dyckerhoff & Widmann Ag Procede pour nettoyer et mettre a nu des troncons de longueur limitee de torons de fils d'acier
WO1998040561A1 (fr) * 1997-03-12 1998-09-17 Eps Schaub Gmbh Dispositif de protection anticorrosion destine a un cable
EP1033443A1 (fr) * 1999-03-01 2000-09-06 Baudin-Chateauneuf Câbles enveloppes d'une bande en matériau thermorétractable
FR2790492A1 (fr) * 1999-03-01 2000-09-08 Baudin Chateauneuf Cables enveloppes d'une bande en materiau thermoretractable
WO2011044611A1 (fr) * 2009-10-14 2011-04-21 The Roads And Traffic Authority Of New South Wales Ouvrage de pont et procédé de modification des caractéristiques de déformation d'un pont
US8042213B2 (en) * 2007-10-30 2011-10-25 Ihi Infrastructure Systems Co., Ltd. Device and method for preventing rusting of cable for supporting bridge
US20130007966A1 (en) * 2010-03-26 2013-01-10 Vsl International Ag Strand guiding device
CN106439138A (zh) * 2016-10-25 2017-02-22 深圳市科兰德实业发展有限公司 一种恒定水蒸汽分压力的恒压阀
CN107869466A (zh) * 2017-11-07 2018-04-03 肖叶 一种便于更换过滤网的水泵
CN108487050A (zh) * 2018-03-22 2018-09-04 谢志坚 一种基于市政桥梁工程的桥梁底座伸缩装置
CN111945562A (zh) * 2020-08-12 2020-11-17 郑州大学 一种悬索桥主缆的除湿方法
CN113389134A (zh) * 2021-06-07 2021-09-14 中建三局第一建设工程有限责任公司 一种钢板带悬桥及其施工方法
CN114232478A (zh) * 2021-09-06 2022-03-25 郑州大学 一种高效的悬索桥主缆除湿方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1091906B (de) * 1953-05-05 1960-10-27 British Ropes Ltd Verfahren zum Impraegnieren von Seilen
US3646748A (en) * 1970-03-24 1972-03-07 Frederic A Lang Tendons for prestressed concrete and process for making such tendons
US4117582A (en) * 1972-08-05 1978-10-03 Wolfgang Borelly Apparatus for producing parallel wire strands for bridges and the like by winding and unwinding strand of large cross-section and for simultaneously applying corrosion protection thereto

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3343352C1 (de) * 1983-11-30 1985-06-05 Max 8228 Freilassing Aicher Verbundkabel für Spannbetonbauwerke, vorzugsweise für Schrägkabelbrücken
DE3437350A1 (de) * 1984-08-30 1986-03-13 Ulrich Dr.Ing. e.h. Dr.Ing. 8000 München Finsterwalder Kabel fuer bauwerke, insbesondere schraegkabelbruecken und verfahren zu dessen herstellung
DE3437107A1 (de) * 1984-10-10 1986-04-10 Dyckerhoff & Widmann AG, 8000 München Zugglied, insbesondere schraegseil fuer eine schraegseilbruecke
DE3629704C1 (en) * 1985-09-02 1988-01-14 Wolfgang Dipl-Ing Borelly Corrosion protection for a tension member formed from steel ropes, parallel wire bundles or parallel strand bundles
DE3723795A1 (de) * 1987-06-11 1988-12-29 Wolfgang Dipl Ing Borelly Korrosionsschutz fuer ein aus staehlernen seilen oder paralleldraht- oder -litzenbuendeln bestehendes zugglied

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1091906B (de) * 1953-05-05 1960-10-27 British Ropes Ltd Verfahren zum Impraegnieren von Seilen
US3646748A (en) * 1970-03-24 1972-03-07 Frederic A Lang Tendons for prestressed concrete and process for making such tendons
US4117582A (en) * 1972-08-05 1978-10-03 Wolfgang Borelly Apparatus for producing parallel wire strands for bridges and the like by winding and unwinding strand of large cross-section and for simultaneously applying corrosion protection thereto

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BETON & STAHLBETONBAU, Band 83, Nr. 12, Dezember 1988, Seiten 334-338, Berlin, DE; JUNGWIRTH: "Hochleistungsf{hige Schr{gseile aus der Sicht des Betonbauers" *
CIVIL ENGINEERING, November 1980, Seiten 32,33, London, GB; DONOVAN: "Vacuum impregnation for restoring structures" *

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2725462A1 (fr) * 1994-10-06 1996-04-12 Dyckerhoff & Widmann Ag Procede pour nettoyer et mettre a nu des troncons de longueur limitee de torons de fils d'acier
AT407767B (de) * 1994-10-06 2001-06-25 Dyckerhoff & Widmann Ag Verfahren zum reinigen und freilegen längenmässig begrenzter abschnitte von litzen aus stahldrähten
WO1998040561A1 (fr) * 1997-03-12 1998-09-17 Eps Schaub Gmbh Dispositif de protection anticorrosion destine a un cable
EP1033443A1 (fr) * 1999-03-01 2000-09-06 Baudin-Chateauneuf Câbles enveloppes d'une bande en matériau thermorétractable
FR2790493A1 (fr) * 1999-03-01 2000-09-08 Baudin Chateauneuf Protection des faisceaux de cables par bande thermoretractable, notamment avec levres et glissiere
FR2790492A1 (fr) * 1999-03-01 2000-09-08 Baudin Chateauneuf Cables enveloppes d'une bande en materiau thermoretractable
US8042213B2 (en) * 2007-10-30 2011-10-25 Ihi Infrastructure Systems Co., Ltd. Device and method for preventing rusting of cable for supporting bridge
WO2011044611A1 (fr) * 2009-10-14 2011-04-21 The Roads And Traffic Authority Of New South Wales Ouvrage de pont et procédé de modification des caractéristiques de déformation d'un pont
CN102713070A (zh) * 2009-10-14 2012-10-03 道路和海上服务 桥梁结构及改变桥梁应变特性的方法
US8650691B2 (en) * 2010-03-26 2014-02-18 Vsl International Ag Strand guiding device
US20130007966A1 (en) * 2010-03-26 2013-01-10 Vsl International Ag Strand guiding device
CN106439138A (zh) * 2016-10-25 2017-02-22 深圳市科兰德实业发展有限公司 一种恒定水蒸汽分压力的恒压阀
CN106439138B (zh) * 2016-10-25 2019-04-09 深圳市科兰德实业发展有限公司 一种恒定水蒸气分压力的恒压阀
CN107869466A (zh) * 2017-11-07 2018-04-03 肖叶 一种便于更换过滤网的水泵
CN108487050A (zh) * 2018-03-22 2018-09-04 谢志坚 一种基于市政桥梁工程的桥梁底座伸缩装置
CN111945562A (zh) * 2020-08-12 2020-11-17 郑州大学 一种悬索桥主缆的除湿方法
CN111945562B (zh) * 2020-08-12 2022-07-01 郑州大学 一种悬索桥主缆的除湿方法
CN113389134A (zh) * 2021-06-07 2021-09-14 中建三局第一建设工程有限责任公司 一种钢板带悬桥及其施工方法
CN114232478A (zh) * 2021-09-06 2022-03-25 郑州大学 一种高效的悬索桥主缆除湿方法
CN114232478B (zh) * 2021-09-06 2023-09-15 郑州大学 一种高效的悬索桥主缆除湿方法

Also Published As

Publication number Publication date
EP0350822A3 (fr) 1990-04-18
DE3823964C2 (fr) 1990-06-28
DE3823964A1 (de) 1990-02-22

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