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 PDFInfo
- 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
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
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19882104A DE19882104C1 (de) | 1998-01-19 | 1998-11-25 | Verankerungsvorrichtung für einen Spann- und/oder Festanker |
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 |
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)
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)
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)
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)
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 |
-
1998
- 1998-01-19 DE DE1998101786 patent/DE19801786A1/de not_active Withdrawn
- 1998-11-25 WO PCT/DE1998/003479 patent/WO1999036641A1/fr active Application Filing
- 1998-11-25 DE DE19882104A patent/DE19882104C1/de not_active Expired - Fee Related
- 1998-11-25 AU AU24081/99A patent/AU2408199A/en not_active Abandoned
Patent Citations (6)
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)
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 |
---|---|
AU2408199A (en) | 1999-08-02 |
DE19801786A1 (de) | 1999-07-29 |
DE19882104C1 (de) | 2001-04-05 |
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