WO1999036641A1 - Dispositif d'ancrage pour ancre de tension et/ou ancre fixe - Google Patents

Dispositif d'ancrage pour ancre de tension et/ou ancre fixe Download PDF

Info

Publication number
WO1999036641A1
WO1999036641A1 PCT/DE1998/003479 DE9803479W WO9936641A1 WO 1999036641 A1 WO1999036641 A1 WO 1999036641A1 DE 9803479 W DE9803479 W DE 9803479W WO 9936641 A1 WO9936641 A1 WO 9936641A1
Authority
WO
WIPO (PCT)
Prior art keywords
anchor
tendons
intermediate plate
housing
monostrands
Prior art date
Application number
PCT/DE1998/003479
Other languages
German (de)
English (en)
Inventor
Artur DÜSTERHÖFT
Edmund Walczak
Original Assignee
Suspa Spannbeton 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 Suspa Spannbeton Gmbh filed Critical Suspa Spannbeton Gmbh
Priority to DE19882104D priority Critical patent/DE19882104D2/de
Priority to AU24081/99A priority patent/AU2408199A/en
Priority to DE19882104A priority patent/DE19882104C1/de
Publication of WO1999036641A1 publication Critical patent/WO1999036641A1/fr

Links

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
    • E04C5/122—Anchoring devices the tensile members are anchored by wedge-action
    • 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

Definitions

  • the invention relates to an anchoring device for a prestressing and / or fixed anchor, in particular for use in prestressed concrete construction, with at least one tendon with strands, in particular monostrands, which is attached to an anchor plate as an anchoring part.
  • tension members are usually used, which consist of e.g. with plastic-coated tensile strength None from prestressing steel strands or the like. In applications without a bond, these tension members are additionally protected against environmental influences by mostly corrugated cladding tubes made of PE.
  • an anchoring device in which the anchor plate, which is on an abutment, e.g. supported in the form of a concrete foundation, is provided with a tubular anchor connector. Both the additional cladding tube and the end of the tension member to be anchored are guided through the anchor stub. The stripped end of the tension member is cut in the usual way, e.g. held in an anchor sleeve by means of a clamping cone. A shrink tube is shrunk onto the transition between the end of the anchor socket and the cladding tube, which is intended to prevent the cladding tube from retracting in the event of temperature changes and the associated changes in length of the cladding tube.
  • At least the stripped part of the tension member in the anchor socket or in the anchor plate is surrounded with an anti-corrosion compound.
  • Within the anchor connector is between the jacket of the tension member and the inner wall of the A seal is provided to prevent the corrosion protection compound from escaping.
  • a disadvantage of this known anchoring device proves that pump movements, i.e. axial movements of the jacket of the tension member arise, which press the protective and sliding layer between the jacket and the tensile core of the tension member to the outside.
  • the sensitive core is no longer adequately protected against corrosion.
  • the pumping movements will reach such an extent that the jacket will retract behind the seal in the anchor connector and the corrosion protection compound may escape.
  • the object of the present invention is to create an anchoring device of the type mentioned at the outset which, with a simple construction and reduction in assembly costs, perfectly intercepts pump movements and also ensures reliable protection of the tendons.
  • anchor plate is connected to an end-sealed housing in which a part of the
  • End areas of the tendons are pressed with concrete. This has the advantage that a structural unit is created which perfectly intercepts undesired movements of the tendons, but on the other hand protects them from corrosion.
  • the tendons in particular the monostrands, can be provided in the end section with a multiple PE sheathing and with a PE push-over tube. Corrosion protection, in particular between a part of the PE push-over tube and the respective monostrand special fat, store.
  • the housing can have a sheet steel socket connected to the anchor plate, a PE recess tube attached to it, and a shrink tube with foam packer at the end. At least one PE protective shell and at least one steel strap can be located in the area of the foam packer.
  • the anchor plate can be welded to the sheet steel socket, the steel plate socket being welded to the PE
  • Recess tube is connected via screws.
  • the PE recess pipe can have at least one press-in opening with at least one ventilation opening, which can be welded by sealing plugs after the concrete has been pressed in.
  • the anchor plate is connected on the anchoring side to an intermediate plate with a seal.
  • a mounting centering ring can also be used, by means of which the intermediate plate is fastened to the anchor plate.
  • This intermediate plate can be provided with at least one vent opening connected to the interior of the housing.
  • an anchor sleeve can be connected on the end face to the intermediate plate, in which all the monostrands of the tendons are combined and fastened, the anchor sleeve transmitting the tension force via the intermediate plate and the anchor plate to at least one structural concrete part.
  • the anchor sleeve can be covered by an anchor hood filled with anti-corrosion compound.
  • Figure 2 is a schematic side view in section with respect to the installed state of the tendons.
  • Fig. 3 is a schematic side view in section with respect to the final state of the spam members.
  • FIG. 3 shows the anchoring device 1 according to the invention for a prestressing and / or fixed anchor, in particular for use in prestressed concrete construction.
  • tendons 2 are used here, which are equipped with strands, in particular with monostrands.
  • These spam members 2 are attached to an anchor plate 3 as an anchoring part.
  • the anchor plate 3 is connected to a housing 4 which is closed at the end, in which, according to FIG. 3, part I of the end regions of the tendons 2 is pressed with concrete 10.
  • Fig. 1 shows the assembly state of the concreted-in anchor plate 3.
  • a sheet steel connector 12 is welded, to which a PE Ausspamngsrohr 13 is fastened, for example, by self-tapping screws 18.
  • a steel expansion ring 21 pressed in. This expansion ring 21 is intended to prevent the PE recess tube 13 from expanding during the pretensioning.
  • the anchor plate 3 with the PE Ausspamngsrohr 13 can be concreted in from the start with new concrete.
  • Formwork 50 and 55 can be used for this purpose, the anchor plate 3 being fastened to the formwork 50 by means of mounting screws 51.
  • Recess pipes 13 are inserted into previously made concrete holes.
  • the PE expulsion pipe 13 has a press-in opening 22 and a ventilation opening 23 in the rear region.
  • the housing 4, which is designed as a PE Ausspamngsrohr 13 can be surrounded in a concrete support 8 by a coil 33 and by an additional reinforcement 34.
  • Fig. 2 shows the tendon installation state: As can be seen, the transition from the PE recess pipe 13 to the free length of the tendons 2 is sealed by a foam packer 15. In the area of the foam packer 15, the latter and the tendons 2 are surrounded by at least one PE protective shell 16, which is surrounded by a steel tension band 17. The PE protective shell 16 and that
  • Steel strip 17 is in this case encompassed by a shrink tube 14, which extends into the end region of the PE expansion pipe 13.
  • the seal on the anchoring side is provided by an intermediate plate 30 added. Furthermore, an assembly centering ring 35 is used, by means of which the intermediate plate 13 is fastened to the anchor plate 3.
  • the intermediate plate 30 can be provided with at least one ventilation opening 28 connected to the interior of the housing 4.
  • the armature sleeve 27 is provided with bores which are flared out for the seating of clamps 32.
  • the armature sleeve 27 can be manufactured with an external thread onto which a tensioning device, not shown, can be screwed to check the tensioning force.
  • anchor hood 29 made of steel or plastic, this anchor hood preferably being filled with anti-corrosion compound.
  • the anchor hood 29 is fastened to the anchor plate 3 by screws 37 covered by protective caps, an additional seal 38 being provided between the mutually opposite surfaces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Piles And Underground Anchors (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

L'invention concerne un dispositif d'ancrage (1) pour une ancre de tension et/ou une ancre fixe, en particulier destiné à être utilisé dans les constructions en béton précontraint. Ce dispositif comporte au moins un élément de tension (2) présentant des torons, en particulier des monotorons, qui est fixé à une plaque d'ancrage (3) servant de partie d'ancrage. La plaque d'ancrage (3) est reliée à un caisson (4) fermé à son extrémité, dans lequel une partie (I) des zones d'extrémité des éléments de tension (2) est comprimée avec du béton (10).
PCT/DE1998/003479 1998-01-19 1998-11-25 Dispositif d'ancrage pour ancre de tension et/ou ancre fixe WO1999036641A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19882104D DE19882104D2 (de) 1998-01-19 1998-11-25 Verankerungsvorrichtung für einen Spann- und/oder Festanker
AU24081/99A AU2408199A (en) 1998-01-19 1998-11-25 Anchoring device for a tensioning anchor and/or fixed anchor
DE19882104A DE19882104C1 (de) 1998-01-19 1998-11-25 Verankerungsvorrichtung für einen Spann- und/oder Festanker

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998101786 DE19801786A1 (de) 1998-01-19 1998-01-19 Verankerungsvorrichtung für einen Spann- und/oder Festanker
DE19801786.3 1998-01-19

Publications (1)

Publication Number Publication Date
WO1999036641A1 true WO1999036641A1 (fr) 1999-07-22

Family

ID=7855017

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1998/003479 WO1999036641A1 (fr) 1998-01-19 1998-11-25 Dispositif d'ancrage pour ancre de tension et/ou ancre fixe

Country Status (3)

Country Link
AU (1) AU2408199A (fr)
DE (2) DE19801786A1 (fr)
WO (1) WO1999036641A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002309776A (ja) * 2001-01-29 2002-10-23 Vsl Internatl Ag 基礎に支柱の一端を固定する装置
EP1505223A1 (fr) * 2003-08-02 2005-02-09 Dywidag-Systems International GmbH Tendon protégé contre la corrosion, en particulier pour béton précontraint
US7181890B2 (en) 2002-04-03 2007-02-27 Dywidag-Systems International Gmbh Anchoring device for a corrosion-resistant tension member, particularly an inclined cable for a cable-stayed bridge
CN104060525A (zh) * 2014-06-28 2014-09-24 江苏省交通科学研究院股份有限公司 钢绞线夹片锚附加锚固装置、张拉工具和安装方法
CN105986548A (zh) * 2015-02-10 2016-10-05 杭州富锚机械有限公司 一种低回缩锚具张拉装置及张拉方法
CN108570922A (zh) * 2018-06-12 2018-09-25 中交第四航务工程勘察设计院有限公司 一种多束接少束预应力钢束接长结构及施工方法
CN113981819A (zh) * 2021-11-05 2022-01-28 衡阳市新德力交通材料有限公司 一种公路桥梁施工用预应力锚具

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2973818B1 (fr) * 2011-04-07 2017-06-02 Soletanche Freyssinet Procede et dispositif de protection de l'extremite d'un cable ancre
CN109372007B (zh) * 2018-11-28 2023-11-07 长江三峡集团福建能源投资有限公司 一种海上风力机组安装锚栓笼用密封锚栓及其施工方法
CN113445427B (zh) * 2021-07-08 2022-09-09 北京工业大学 预应力钢绞线临时拉索整体卸锚装置及其施工工艺

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492870A1 (fr) * 1980-10-27 1982-04-30 Precontrainte Structures Ste F Tete d'ancrage de cable pour ouvrage en beton precontraint
WO1985001080A1 (fr) * 1983-08-22 1985-03-14 Losinger Ag Ancrage des elements de traction libres en acier d'une partie de construction soumise a des efforts dynamiques
GB2155973A (en) * 1984-03-23 1985-10-02 Acero Y Caucho Sa Manufacturas Stressed reinforcing tendon
DE8800881U1 (de) * 1988-01-20 1988-03-17 Dyckerhoff & Widmann AG, 8000 München Korrosionsgeschütztes Zugglied, vornehmlich Spannglied für Spannbeton ohne Verbund
DE3734954A1 (de) * 1987-03-13 1988-04-07 Dyckerhoff & Widmann Ag Korrosionsgeschuetztes zugglied, vornehmlich spannglied fuer spannbeton ohne verbund und verfahren zu seinem einbau
EP0703326A1 (fr) * 1994-09-22 1996-03-27 DYCKERHOFF & WIDMANN AG Elément de tension inoxydable pour la réalisation d'ouvrages en béton précontraint avec post-tension

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE872844C (de) * 1949-09-24 1953-04-09 Dyckerhoff & Widmann Ag Spannkopf fuer stabfoermige Vorspannglieder von Spannbetonbauteilen
DE3125166C2 (de) * 1981-06-26 1993-12-02 Dyckerhoff & Widmann AG, 8000 München Verfahren zum Herstellen eines nachspannbaren Verpreßankers
US4445321A (en) * 1982-11-29 1984-05-01 Hutchinson Raymond E Tendon construction for posttensioning prestressed concrete and the method of making such tendons

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492870A1 (fr) * 1980-10-27 1982-04-30 Precontrainte Structures Ste F Tete d'ancrage de cable pour ouvrage en beton precontraint
WO1985001080A1 (fr) * 1983-08-22 1985-03-14 Losinger Ag Ancrage des elements de traction libres en acier d'une partie de construction soumise a des efforts dynamiques
GB2155973A (en) * 1984-03-23 1985-10-02 Acero Y Caucho Sa Manufacturas Stressed reinforcing tendon
DE3734954A1 (de) * 1987-03-13 1988-04-07 Dyckerhoff & Widmann Ag Korrosionsgeschuetztes zugglied, vornehmlich spannglied fuer spannbeton ohne verbund und verfahren zu seinem einbau
DE8800881U1 (de) * 1988-01-20 1988-03-17 Dyckerhoff & Widmann AG, 8000 München Korrosionsgeschütztes Zugglied, vornehmlich Spannglied für Spannbeton ohne Verbund
EP0703326A1 (fr) * 1994-09-22 1996-03-27 DYCKERHOFF & WIDMANN AG Elément de tension inoxydable pour la réalisation d'ouvrages en béton précontraint avec post-tension

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002309776A (ja) * 2001-01-29 2002-10-23 Vsl Internatl Ag 基礎に支柱の一端を固定する装置
US7181890B2 (en) 2002-04-03 2007-02-27 Dywidag-Systems International Gmbh Anchoring device for a corrosion-resistant tension member, particularly an inclined cable for a cable-stayed bridge
EP1505223A1 (fr) * 2003-08-02 2005-02-09 Dywidag-Systems International GmbH Tendon protégé contre la corrosion, en particulier pour béton précontraint
US7174684B2 (en) 2003-08-02 2007-02-13 Dywidag-Systems International Gmbh Corrosion-resistant tension member, particularly a tendon for prestressed concrete
CN104060525A (zh) * 2014-06-28 2014-09-24 江苏省交通科学研究院股份有限公司 钢绞线夹片锚附加锚固装置、张拉工具和安装方法
CN105986548A (zh) * 2015-02-10 2016-10-05 杭州富锚机械有限公司 一种低回缩锚具张拉装置及张拉方法
CN105986548B (zh) * 2015-02-10 2018-02-13 杭州富锚机械有限公司 一种低回缩锚具张拉装置及张拉方法
CN108570922A (zh) * 2018-06-12 2018-09-25 中交第四航务工程勘察设计院有限公司 一种多束接少束预应力钢束接长结构及施工方法
CN108570922B (zh) * 2018-06-12 2023-12-05 中交第四航务工程勘察设计院有限公司 一种多束接少束预应力钢束接长结构及施工方法
CN113981819A (zh) * 2021-11-05 2022-01-28 衡阳市新德力交通材料有限公司 一种公路桥梁施工用预应力锚具

Also Published As

Publication number Publication date
DE19801786A1 (de) 1999-07-29
DE19882104C1 (de) 2001-04-05
AU2408199A (en) 1999-08-02

Similar Documents

Publication Publication Date Title
EP0606820B1 (fr) Dispositif d'ancrage d'au moins une armature de précontrainte dans une gaine et procédé pour monter le dispositif d'ancrage
EP1505223B1 (fr) Tendon protégé contre la corrosion, en particulier pour béton précontraint
WO1999036641A1 (fr) Dispositif d'ancrage pour ancre de tension et/ou ancre fixe
DE4118897C2 (fr)
DE9420527U1 (de) Flexible Gasleitung
DE19503346C2 (de) Rohrbauteil
DE3107506C2 (fr)
DE3801451A1 (de) Korrosionsgeschuetztes zugglied, vornehmlich spannglied fuer spannbeton ohne verbund
DE29504739U1 (de) Korrosionsgeschütztes Zugglied, vornehmlich externes Spannglied für Spannbeton ohne Verbund
EP2146004B1 (fr) Connexion de broche travaillant en cisaillement
DE2557978C2 (de) Ausbaubarer Verpreßanker
EP1154077B1 (fr) Ancrage injecté récupérable
DE3339058A1 (de) Freiliegendes spannbares zugglied aus einem oder mehreren zugelementen, wie stahlstaeben, -draehten oder -litzen
EP1045081B1 (fr) Barre d'armature
EP0950846B1 (fr) Système de tuyauterie
DE19645759C2 (de) Hülsenförmiges Verankerungselement zum Einbetten in eine Betongießmasse
DE29614733U1 (de) Vorrichtung zur Verankerung von Bewehrungsstäben
DE19711002C2 (de) Vorgefertigtes Zugglied, insbesondere als Umfangsspannglied für Großbehälter aus Beton
DE3504942A1 (de) Verfahren zur befestigung eines verankerungsstabs in einem waermedaemmenden isolierkoerper und isolierkoerper zur aufnahme eines verankerungsstabs
EP0563006B1 (fr) Elément de répartition des efforts pour un ancrage
DE10043848B4 (de) Montagehülse für einen Wandanker
WO2000028252A1 (fr) Manchon emboitable pour assemblage par liaison de force longitudinale
EP0687849A1 (fr) Procédé pour empêcher la propagation rapide des fissures dans les tubes en matière plastique et tubes obtenus selon ce procédé
CH684200A5 (de) Elektrisch isoliertes Vorspannsystem, insbesondere elektrisch isolierte Spannverankerung, in einem Bauwerksteil.
DE2600175A1 (de) Verbindungsstab

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH HU IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
REF Corresponds to

Ref document number: 19882104

Country of ref document: DE

Date of ref document: 20000615

WWE Wipo information: entry into national phase

Ref document number: 19882104

Country of ref document: DE

NENP Non-entry into the national phase

Ref country code: CA

122 Ep: pct application non-entry in european phase