EP0314927A2 - Ancrage d'extrémité d'un élément de précontrainte et procédé de réalisation d'un ancrage - Google Patents

Ancrage d'extrémité d'un élément de précontrainte et procédé de réalisation d'un ancrage Download PDF

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Publication number
EP0314927A2
EP0314927A2 EP88116433A EP88116433A EP0314927A2 EP 0314927 A2 EP0314927 A2 EP 0314927A2 EP 88116433 A EP88116433 A EP 88116433A EP 88116433 A EP88116433 A EP 88116433A EP 0314927 A2 EP0314927 A2 EP 0314927A2
Authority
EP
European Patent Office
Prior art keywords
tensioning
sleeve
tendon
anchoring
anchor
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
EP88116433A
Other languages
German (de)
English (en)
Other versions
EP0314927B1 (fr
EP0314927A3 (fr
Inventor
Hans-Joachim Dipl.-Ing. Miesseler
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.)
Strabag AG
Original Assignee
Strabag Bau AG
Strabag AG
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 Strabag Bau AG, Strabag AG filed Critical Strabag Bau AG
Priority to AT88116433T priority Critical patent/ATE102280T1/de
Publication of EP0314927A2 publication Critical patent/EP0314927A2/fr
Publication of EP0314927A3 publication Critical patent/EP0314927A3/fr
Application granted granted Critical
Publication of EP0314927B1 publication Critical patent/EP0314927B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E04C5/085—Tensile members made of fiber reinforced plastics
    • 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
    • E04C5/125—Anchoring devices the tensile members are profiled to ensure the anchorage, e.g. when provided with screw-thread, bulges, corrugations
    • 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
    • E04C5/127—The tensile members being made of fiber reinforced plastics
    • 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 tendon made of fiber composite materials, as well as a method and a device for tensioning and anchoring such a tendon for prestressed concrete components, ground anchors, rock anchors or the like, which has at least one tension rod or a tension wire bundle made of fiber composite materials with a surrounding tension at least at one end - Or anchoring sleeve, which is filled with a synthetic resin mortar affinity to the fiber composite materials, in which the tie rods or wires are embedded and which produces the adhesive-shear bond between them and the sleeve.
  • tendons with tendons or tendons made of fiber composite materials have been used in recent times, which have the advantage over tendons with high-strength steel rods or steel wires that they are corrosion-resistant and can also be used in components that are exposed to corrosive liquids or gases .
  • An end anchorage for tendons made of fiber composite materials is known (EP-PS 0 025 856), in which the tension wires made of fiber composite materials are held between clamping plates, to which a transverse pressure dependent on the applied tensile force is exerted and at the same time means are provided that the clamping pressure does not rise too high to keep the transverse pressure exerted on the tension wires within permissible limits.
  • both known types of anchoring have the disadvantage that the fatigue strength of the tendons is insufficient at the points where the tendons or tendons made of fiber composite materials enter between the clamping plates or into the clamping sleeve of the anchoring.
  • the object of the invention is to avoid these disadvantages of the known end anchoring and to design a tendon made of fiber composite materials so that it can be tensioned and securely anchored with simple means and in particular has the required fatigue strength at the anchoring points and can easily be connected to devices for function monitoring .
  • the tensioning or anchor sleeve consists of a thin-walled corrugated tube which can be gripped by a tensioning device at least over a length corresponding to the working load to be accommodated or can be concreted in the anchoring area of the respective component.
  • This configuration has the advantage that the tensioning or anchor sleeve can expand when the tension is applied by the tensioning device and follows the expansions that the tension rods or wires suffer when the tension is applied.
  • the synthetic resin mortar adhering to the tie rods can therefore tear at certain longitudinal distances transversely to the direction of pull without losing cohesion, since the resulting synthetic resin discs adhere to the tendons inside and are held at their outer edge by the corrugated pipe, which holds the synthetic resin mortar filling surrounds.
  • the resulting mortar discs allow mutual displacement in the direction of force, so that the fatigue strength of the anchor is improved.
  • the adhesive-shear bond on the inside and outside of the corrugated pipe to the surrounding mortar is considerably higher than with a cylindrical adapter sleeve, and a thin-walled corrugated pipe is considerably less expensive than thick-walled threaded adapter sleeves or clamp anchoring devices.
  • the corrugated tube can be easily gripped and clamped by a suitably adapted clamping device.
  • the clamping or anchor sleeve can be wound from thin-walled sheet metal strips which interlock with folds at their edges. When tensioning, the windings of the anchor sleeve can then yield in the folds.
  • the clamping or anchor sleeves can be made of sheet steel or aluminum and preferably have a sinusoidal corrugation.
  • the wave crests and troughs of the corrugations expediently run in the circumferential direction of the tensioning or anchor sleeve according to a helical line.
  • the clamping sleeve can then be screwed into a correspondingly shaped coupling member of a device for tensioning and temporarily anchoring the clamping member on an abutment part.
  • the device necessary for tensioning and temporarily anchoring a tendon to an abutment part has a support nut and a tensioning device, in which the support nut and the threaded sleeve of the tensioning device have corrugated pipe threaded sleeve pieces with which they can be screwed over the threaded screw tube of the tensioning sleeve of the tendon.
  • Such a device is easy to manufacture in that the corrugated pipe threaded sleeve pieces are fastened with a synthetic resin adhesive or mortar in the threaded opening of the support nut or the threaded sleeve of the clamping device.
  • Corrugated pipe threaded sleeve pieces of this type which can be screwed onto helically shaped corrugated pipes, are commercially available and can be easily procured and processed.
  • an anchoring mortar is arranged in the extensions of the cladding tube, in which the tensioning or anchor sleeves and / or the tension rods or tension wire bundles inserted out of them and into the cladding tubes are embedded and which produces the adhesive-shear bond between them and the cladding tube extensions.
  • the end of the tendon provided with an anchor sleeve is embedded in the concrete of the component in such a way that the necessary to transfer the working load from the tendon to the component Length of the anchor sleeve is in the concrete.
  • the remaining part of the anchor sleeve protrudes into the extension of the cladding tube and, as described above, can follow the expansion of the tie rods which they suffer when the tendon is tensioned, so that in this area the synthetic resin mortar inside the anchor sleeve tears open in disks and that ensures the desired elasticity in the continuous vibration loading of the component.
  • the tie rods are only embedded in the anchoring mortar after they have been tensioned to the working load and until then no relative movement has taken place between the tie rods and the anchoring mortar surrounding them, the bond at the beginning of the anchoring section is only stressed by the differential stresses resulting from permanent vibration stress and the Stresses result from the working load, so that sufficient fatigue strength is also achieved in this embodiment.
  • the anchor sleeve firmly concreted in concrete which is required for fastening the tension rods during prestressing to the working load, can be kept much shorter, which facilitates the winding of the tendons prefabricated in the manufacturing plant onto transport drums.
  • a similar procedure can also be used when anchoring the tendon end, which is initially movable longitudinally, on which the prestressing press acts to tension the tendon.
  • the tendon end which is initially movable longitudinally, on which the prestressing press acts to tension the tendon.
  • the tie rods or tension wires between the rear end of the clamping sleeve and the end face of the component are cut.
  • the tensioning force is then transferred directly from the tensioning bars or tensioning wires through the anchoring mortar to the prestressed part of the building or the cladding tube extension, which is embedded in this component.
  • the tendon rod ends protruding from the prestressed component are free, to which the sensors of a monitoring device can then be immediately attached, which monitor the effectiveness of the tendons in use.
  • this cladding tube extension can consist of a steel or aluminum corrugated tube.
  • the tendons can also be cut to suitable lengths on the construction site, provided at their ends with the anchor or tensioning sleeves and connected to them with synthetic resin mortar, which can then be heated by heating the anchor or Adapter sleeves with infrared radiators, microwave devices or the like. is cured on the spot.
  • the anchoring described above can be used for pre-stresses with composite, in which the tendon is pressed in its cladding tube along the entire length with a cement mortar or plastic mortar.
  • the anchorage can also be used for pre-stressing without a bond, such as for rock anchors or ground anchors.
  • the grout or anchoring mortar which comes into direct contact with the tendons or tendons made of fiber composite material has a high affinity for them in order to transmit the forces from the tendons or tension wires to the surrounding anchoring parts through a good adhesive-shear bond.
  • the individual tie rods or tension wires of each tendon must also have a sufficient distance from each other so that they can be completely covered by the mortar.
  • 10 denotes a tendon which is intended for prestressing a concrete component 11 and consists of a plurality of tendons 12 which are guided essentially parallel to one another.
  • the tendon 10 is laid in a cladding tube 13, which is at its rear end 13a and nem front end 13b each has an extension 14 or 15.
  • the cladding tube 13 can be made of plastic or sheet steel, but the cladding tube extensions 14 and 15 are expediently made of corrugated steel or aluminum tubes.
  • the tie rods 12 are accommodated at one, rear end 10a of the tendon 10 in an anchor sleeve 16 which surrounds the tie rods 12 at a distance and is connected to them by a synthetic resin mortar 17 which has a high affinity for the fiber composite material of the tie rods 12.
  • the anchor sleeve 16 consists of a longitudinally welded corrugated tube made of sheet steel with a sinusoidal corrugation 18, and the outer diameter d of the anchor sleeve 16 is somewhat smaller than the inner diameter D of the cladding tube extension 14.
  • the anchor sleeve 16 protrudes a little way into the interior of the cladding tube extension 14, but is otherwise firmly concreted in the concrete component 11.
  • the cladding tube 13 and the cladding tube extension 14 are empty, i.e. they form a free space in which the tie rods 12 of the tendon 10 can expand freely.
  • the rear end 10a of the tendon 10, which is firmly connected to the anchor sleeve 16 by the mortar 17, is held in the concrete of the component 11.
  • the front end 10b of the tendon 10 is arranged similar to its rear end in a clamping sleeve 19, in which the tie rods 12 are embedded with a: synthetic resin mortar 17.
  • the clamping sleeve 19 also consists of a corrugated tube with sinusoidal corrugation, the wave crests 20 and troughs 21 of which run along a helix.
  • the clamping sleeve can consist of a longitudinally welded corrugated steel tube. In the present Trap, however, the corrugated tube is wound from thin-walled sheet metal strips that interlock with folds at their edges.
  • the clamping sleeve 19 is surrounded by the cladding tube extension 15 at a distance and protrudes to the front a little way beyond the front end face 22 of the concrete component 11.
  • a supporting nut 23 is screwed onto this protruding, front end 19a of the clamping sleeve 19 and is supported on an annular anchor plate serving as an abutment part 24.
  • the clamping device is provided with a threaded sleeve 26 which is screwed onto the front end 19a of the clamping sleeve 19. Since support nuts and threaded sockets, which have a thread matching the corrugated pipe thread of the adapter sleeve 19, are not readily available, the support nut 23 and the threaded sleeve 26 are produced in that the threaded opening 28 of a commercially available nut and the threaded opening 29 of a commercially available threaded sleeve Corrugated pipe threaded sleeve pieces 27 are glued in with a synthetic resin adhesive or mortar.
  • the support nut 23 and the threaded sleeve 26 can then be easily screwed onto the free front end 19a of the clamping sleeve 19, the length L ascertainable by the threaded sleeve 26 and the support nut 23 being as large as the anchoring area 1 of the anchor sleeve 16, which is the corresponds to the payload to be absorbed.
  • the tensioning sleeve 16 with the tension rod ends fastened in it is pulled out piece by piece from the cladding tube extension 15.
  • the Clamping sleeve 19 is supported by by adjusting the support nut 23 via an intermediate sliding layer 30, as is known per se when prestressing tendons.
  • the tensioning rods 12 are stretched, this stretching continuing into the inner end 16a of the anchor sleeve and into the inner end 19a of the tensioning sleeve 19.
  • the cavities enclosed by the cladding tube extensions 14 and 15 are filled with an anchoring mortar 32, which can also be pressed into the cladding tube 13 if a full bond between the tendon and the concrete component is to be produced.
  • the anchoring mortar 32 indirectly creates an adhesive-shear bond to the corrugated pipe of the cladding tube extensions 14 and 15 over almost the entire length of the rear cladding tube extension 14 and in the rear region 33 of the front cladding tube extension 14.
  • this anchoring area which is also to be referred to as the “pre-length” and is indicated in FIG. 3 by 33 and in FIG. 1 by 34, the tie rods 12 are only embedded in the anchoring mortar in the already prestressed state. Any dynamic stress that occurs is therefore only slight in this area.
  • an end anchoring of the front, initially movable end 10b of the tensioning member 10 is also possible in that the tensioning sleeve 19 is pulled completely out of the component 11 until the working load is applied and that the tensioning rods 12 still located in the cladding tube extension 15 are then located be embedded in the anchor mortar 32.
  • this anchoring mortar 32 is then completely hardened, the tie rods 12 can be cut through between the pulled-out clamping sleeve 19 and the front end face 22 or the abutment part. You then individually look a little bit beyond the front end face 22 of the concrete component 11 and can then be connected directly to the sensors of a monitoring device, not shown here. Such a sensor connection is of course also possible at the ends 12a of the tension rods 12 if they are embedded in the tensioning sleeve 19.
  • the anchor sleeve 16 at the rear end 10a of the tendon 10, which is to be firmly concreted in can also be so long that it almost completely fills the cladding tube extension 14. Cracks 31 then occur in the synthetic resin mortar 17 in that area of the anchor sleeve which is located in the interior of the cladding tube extension 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Piles And Underground Anchors (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Ropes Or Cables (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
EP88116433A 1987-11-04 1988-10-05 Ancrage d'extrémité d'un élément de précontrainte et procédé de réalisation d'un ancrage Expired - Lifetime EP0314927B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88116433T ATE102280T1 (de) 1987-11-04 1988-10-05 Endverankerung eines spanngliedes und verfahren zum herstellen einer endverankerung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873737393 DE3737393A1 (de) 1987-11-04 1987-11-04 Spannglied aus faserverbundwerkstoffen sowie verfahren und einrichtung zum spannen und zur verankerung eines solchen spanngliedes
DE3737393 1987-11-04

Publications (3)

Publication Number Publication Date
EP0314927A2 true EP0314927A2 (fr) 1989-05-10
EP0314927A3 EP0314927A3 (fr) 1991-04-10
EP0314927B1 EP0314927B1 (fr) 1994-03-02

Family

ID=6339745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88116433A Expired - Lifetime EP0314927B1 (fr) 1987-11-04 1988-10-05 Ancrage d'extrémité d'un élément de précontrainte et procédé de réalisation d'un ancrage

Country Status (6)

Country Link
US (1) US4934118A (fr)
EP (1) EP0314927B1 (fr)
JP (1) JPH01163344A (fr)
AT (1) ATE102280T1 (fr)
CA (1) CA1302724C (fr)
DE (2) DE3737393A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2644819A1 (fr) * 1989-03-27 1990-09-28 Kajima Corp Procede de fixation de la tete d'un dispositif d'ancrage
CN102493660A (zh) * 2011-12-30 2012-06-13 湖南大学 一种碳纤维增强复合材料预应力筋的锚固方法及锚具
CN109339834A (zh) * 2018-11-02 2019-02-15 山东科技大学 一种锚杆-锚索协同变形受力的支护方法
CN112469873A (zh) * 2018-06-25 2021-03-09 碳连接股份公司 锚套筒和锚系统

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4209265A1 (de) * 1991-12-21 1993-06-24 Dyckerhoff & Widmann Ag Vorrichtung zur verankerung eines stabfoermigen zugglieds aus faserverbundwerkstoff
CH687399A5 (de) * 1992-04-06 1996-11-29 Eidgenoessische Materialpruefung Verfahren und Vorrichtung zur Schubverstaerkung an einem Bauwerkteil.
DE4411643A1 (de) * 1994-04-02 1995-10-05 Dyckerhoff & Widmann Ag Verfahren zum Ausbauen des freien Teils eines gespannten Zugglieds eines Verpreßankers
DE19917253A1 (de) * 1999-04-16 2000-11-02 Hock Berghaus Kay Verfahren zur Herstellung biegesteifer Pfähle direkt unter vorhandenen Fundamenten bei beengtem Arbeitsraum
US6481102B1 (en) 1999-12-02 2002-11-19 Tommie D. Hill Attachment devices, systems, and methods for a tendon, rod, or other elongated member
FR2811002B1 (fr) * 2000-06-29 2007-12-21 Lefevre Sa M Procede et systeme de mise en traction d'un dispositif de renforcement de structure
DE10037516C1 (de) * 2000-08-01 2002-01-17 Bauer Spezialtiefbau Hochlastanker
CN1328449C (zh) * 2004-07-26 2007-07-25 北京市建筑工程研究院 将有粘结预应力张拉端转换为无粘结预应力张拉端的做法
FR3062862B1 (fr) * 2017-02-13 2019-04-05 Soletanche Freyssinet Dispositif d'ancrage pour paroi moulee precontrainte
CN112663607A (zh) * 2020-12-29 2021-04-16 中国电建集团华东勘测设计研究院有限公司 一种锚索传力锚头结构
CN114214936B (zh) * 2021-11-23 2023-11-24 上海浦江缆索股份有限公司 一种锚固效果好且受力均匀的碳纤维拉索

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1071931B (fr) * 1959-12-24
US2677957A (en) * 1952-06-12 1954-05-11 Raymond Concrete Pile Co Prestressed concrete structure
AT201840B (de) * 1955-02-26 1959-01-26 Pforzheim Metallschlauch Gewelltes Rohr zum Umhüllen von Leitungen, Kabeln u. dgl., insbesodere von Spannkabeln an Spannbetonbauteilen und Verfahren zu seiner Herstellung
DE1130988B (de) * 1956-12-10 1962-06-07 Rudolf Buehrer Dipl Ing Spannglied aus mehreren Einzeldraehten oder -staeben
DE1097114B (de) * 1957-10-23 1961-01-12 Rudolf Buehrer Vorrichtung und Verfahren zum Greifen und Verankern eines Spannstabs vorzugsweise fuer Betonbauteile
CH376258A (de) * 1958-08-16 1964-03-31 Pforzheim Metallschlauch Hüllrohr
DE1278718B (de) * 1962-06-30 1968-09-26 Rudolf Buehrer Vorrichtung zum Greifen und Verankern eines walzprofilierten Spannstabs, insbesondere eines Stabs mit Schraegrippen
DE1659131C3 (de) * 1967-12-22 1974-09-05 Intercontinentale-Technik Gesellschaft Fuer Planung Und Konstruktion Mbh, 8000 Muenchen Spannglied verankerung für Betonbauteile und Verfahren zu ihrer Anwendung
US3956797A (en) * 1969-03-26 1976-05-18 Antonio Brandestini Anchorage body for anchoring tendons with wedges
US4069677A (en) * 1975-06-20 1978-01-24 Kabushiki Kaisha Nitto Tekuno Group Anchor and method for constructing same
JPS547732A (en) * 1977-06-20 1979-01-20 Futoshi Kamata Method of securing pc steel
EP0343316A1 (fr) * 1979-08-13 1989-11-29 RESTRA-Patentverwertung GmbH Système pour l'ancrage d'extrémité d'au moins une barre de tension en un matériau composite fibreux dans des constructions en béton précontraint
US4348844A (en) * 1980-09-25 1982-09-14 Morris Schupack Electrically isolated reinforcing tendon assembly and method
JPS606097A (ja) * 1983-06-23 1985-01-12 Matsushita Electric Ind Co Ltd クロスフロ−フアン
JPS60203763A (ja) * 1984-03-28 1985-10-15 財団法人鉄道総合技術研究所 プレストレストコンクリ−ト用緊張材の定着方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2644819A1 (fr) * 1989-03-27 1990-09-28 Kajima Corp Procede de fixation de la tete d'un dispositif d'ancrage
CN102493660A (zh) * 2011-12-30 2012-06-13 湖南大学 一种碳纤维增强复合材料预应力筋的锚固方法及锚具
CN102493660B (zh) * 2011-12-30 2014-01-01 湖南大学 一种碳纤维增强复合材料预应力筋的锚固方法及锚具
CN112469873A (zh) * 2018-06-25 2021-03-09 碳连接股份公司 锚套筒和锚系统
CN109339834A (zh) * 2018-11-02 2019-02-15 山东科技大学 一种锚杆-锚索协同变形受力的支护方法

Also Published As

Publication number Publication date
DE3888088D1 (de) 1994-04-07
DE3737393A1 (de) 1989-05-18
US4934118A (en) 1990-06-19
CA1302724C (fr) 1992-06-09
EP0314927B1 (fr) 1994-03-02
JPH01163344A (ja) 1989-06-27
ATE102280T1 (de) 1994-03-15
EP0314927A3 (fr) 1991-04-10

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