EP1125031A1 - Dispositif de serrage pour organe de traction en forme de bande - Google Patents

Dispositif de serrage pour organe de traction en forme de bande

Info

Publication number
EP1125031A1
EP1125031A1 EP99945995A EP99945995A EP1125031A1 EP 1125031 A1 EP1125031 A1 EP 1125031A1 EP 99945995 A EP99945995 A EP 99945995A EP 99945995 A EP99945995 A EP 99945995A EP 1125031 A1 EP1125031 A1 EP 1125031A1
Authority
EP
European Patent Office
Prior art keywords
band
tension member
clamping
tensioning
shaped 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.)
Granted
Application number
EP99945995A
Other languages
German (de)
English (en)
Other versions
EP1125031B1 (fr
Inventor
Hans-Peter ANDRÄ
Markus Maier
Dieter Sandner
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.)
Leonhardt Andra und Partner Beratende Ingenieure VBI GmbH
Original Assignee
Leonhardt Andra und Partner Beratende Ingenieure VBI 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 Leonhardt Andra und Partner Beratende Ingenieure VBI GmbH filed Critical Leonhardt Andra und Partner Beratende Ingenieure VBI GmbH
Publication of EP1125031A1 publication Critical patent/EP1125031A1/fr
Application granted granted Critical
Publication of EP1125031B1 publication Critical patent/EP1125031B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • 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
    • E04G21/121—Construction of stressing jacks
    • 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
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
    • 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
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
    • E04G2023/0255—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements whereby the fiber reinforced plastic elements are stressed
    • 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
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
    • E04G2023/0255—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements whereby the fiber reinforced plastic elements are stressed
    • E04G2023/0259—Devices specifically adapted to stress the fiber reinforced plastic elements
    • 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
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
    • E04G2023/0262—Devices specifically adapted for anchoring the fiber reinforced plastic elements, e.g. to avoid peeling off

Definitions

  • the invention relates to a tensioning device for a band-shaped tension member on a concrete surface of a structure.
  • brackets made of steel or reinforced concrete are anchored to the concrete surface, and the tension member is stretched between these brackets. Due to the offset between the axis of the tension member and the concrete surface, however, an unfavorable offset moment arises, which has to be recorded and forwarded in the bracket anchoring; in addition, a bond between the tension member and the concrete surface can not be made.
  • the required prestress must be applied to the band-shaped tension members lying on the concrete surface, as long as the adhesive layer between the band-shaped tension member and the concrete surface has not yet hardened.
  • the two ends of the prestressed band-shaped tension member must be permanently connected to the structure.
  • a clamping device of the type concerned here is used.
  • a tension drive is required to apply the pretension, which drive drive has, for example, one or more hydraulic cylinders. These tension drives should be removable so that they can be used again. Therefore, a permanent anchoring of the band-shaped tension member is required after the end of the tensioning process. This anchoring should be such that it protrudes only slightly over the concrete surface in order to enable corrosion protection in a simple manner.
  • the object of the invention is therefore to provide a tensioning device of the type mentioned at the outset which enables the application of the prestressing force and an effective anchoring of the band-shaped tension member in a simple manner, with as few parts as possible remaining permanently at the tensioning point.
  • a tensioning slide which is releasably connected to the band-shaped tension member by clamping is guided in a longitudinally movable manner and is arranged such that a tensioning drive can be removed between the tensioning slide and the base frame
  • an anchoring device can be permanently connected to the band-shaped tension member and the base frame.
  • a tensioning slide that only temporarily engages the band-shaped tension member during the tensioning process and a permanent anchoring device that is only to be connected to the band-shaped tension member after the tensioning process makes it possible to remove all components required for the tensioning process after the tensioning process has ended and for further tensioning of further band-shaped tension members to use.
  • the anchoring device which remains permanently connected to the band-shaped tension member, can be designed with a few simple components.
  • the base frame preferably consists of a base plate which can be permanently connected to the supporting structure, preferably by gluing, and guides for the tensioning slide, which can be detachably attached thereto by means of screws.
  • This split design of the base frame makes it possible to remove the guides that are only temporarily required for the tensioning process after the tensioning process has ended and to only leave the base plate permanently on the supporting structure.
  • the tensioning slide consists of a lower plate and a clamping plate screwed to it, between which the band-shaped tension member can be clamped.
  • this embodiment enables a simple, namely clamping connection between the tensioning slide and the band-shaped tension member; on the other hand, after the tensioning process has ended and the band-shaped tension member has been anchored, the tensioning slide can be released from the band-shaped tension member in a simple manner by means of the anchoring device.
  • the anchoring device has a clamping anchor plate which can be screwed to the base plate by clamping the band-shaped tension member.
  • the clamping anchor plate can preferably also be glued to the band-shaped tension member.
  • the combination of clamping and gluing in the area of the anchoring device increases the safety of the transmission of tensile force in the anchoring area because the adhesive connection is added to the static friction by the clamping pressure. This ensures permanent anchoring of the band-shaped tension member even when the screw pretensioning forces of the clamping decrease.
  • the problem of corrosion protection in the clamping gap is solved by applying the adhesive.
  • Fig.l in spatial representation a tensioning device for a band-shaped tension member on a concrete surface of a structure, the tensioning device is shown during the tensioning process
  • FIGS. 1 and 2 shows the anchoring device remaining after the removal of essential parts of the tensioning device according to FIGS. 1 and 2
  • the tensioning device shown in the drawing serves to pretension a band-shaped tension member 1, for example a steel lamella, which is attached to a concrete surface 2 of a supporting structure 3 with adhesive before the adhesive connection between the tension member 1 and the concrete surface 2 hardens. It also serves to anchor the section of the tension member 1 in the area of the tensioning device to the supporting structure 3.
  • a band-shaped tension member for example a steel lamella
  • the tensioning device has a base frame that consists of a base plate 4 and side guides 5 screwed thereon.
  • the base plate 4 is permanently fixed in a recess 6 of the concrete surface 2 by means of anchor screws 7 and an adhesive layer 8.
  • the guides 5 designed as lateral longitudinal rails are detachably attached to the base plate 4 by means of screws 9.
  • the tensioning slide 10 consists of a lower plate 11, which is arranged under the band-shaped tension member 1 and engages laterally under the guides 5, and a screwed thereto
  • Clamping plate 12 which lies on the top of the band-shaped tension member 1 and engages laterally over the guides 5. By tightening the screws 13 connecting the lower plate 11 and the clamping plate 12, the band-shaped tension member 1 is fastened to the tensioning slide 10 by clamping.
  • a clamping anchor plate 21 is now used (FIG. 2), an adhesive application being carried out between the underside of the clamping anchor plate 21 and the upper side of the band-shaped tension member 1.
  • the clamping anchor plate 21 is screwed to the base plate 4 by means of screws 22, the band-shaped tension member 1 being clamped. This state is shown in Fig. 2.
  • anchoring device 23 which consists of the base plate 4 and the screw-fastened anchor plate 21.
  • the tension member 1 is permanently connected to the anchoring device 23 by clamping and gluing. Corrosion protection is then applied.
  • the band-shaped tension member 1 is anchored at its other end by means of an anchoring device which corresponds to the anchoring device 23 described and shown in FIG. 3.
  • the components of the tensioning device namely the tensioning drive 14, the guides 5 and the clamping slide 10, which have been removed after the end of the tensioning process described and the permanent anchoring, can be used for the tensioning process of further tension members 1.

Landscapes

  • Architecture (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Bridges Or Land Bridges (AREA)
  • Supports For Pipes And Cables (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
  • Advancing Webs (AREA)
  • Sewing Machines And Sewing (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
EP99945995A 1998-10-28 1999-08-19 Dispositif tendeur pour un organe de traction en forme de bande Expired - Lifetime EP1125031B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19849605A DE19849605A1 (de) 1998-10-28 1998-10-28 Spannvorrichtung für ein bandförmiges Zugglied
DE19849605 1998-10-28
PCT/EP1999/006066 WO2000024989A1 (fr) 1998-10-28 1999-08-19 Dispositif de serrage pour organe de traction en forme de bande

Publications (2)

Publication Number Publication Date
EP1125031A1 true EP1125031A1 (fr) 2001-08-22
EP1125031B1 EP1125031B1 (fr) 2003-07-23

Family

ID=7885862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99945995A Expired - Lifetime EP1125031B1 (fr) 1998-10-28 1999-08-19 Dispositif tendeur pour un organe de traction en forme de bande

Country Status (6)

Country Link
US (1) US6584738B1 (fr)
EP (1) EP1125031B1 (fr)
AT (1) ATE245750T1 (fr)
DE (2) DE19849605A1 (fr)
DK (1) DK1125031T3 (fr)
WO (1) WO2000024989A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE10002563A1 (de) * 2000-01-21 2001-08-02 Siemens Ag Verfahren zum Steuern des Hochlaufs eines Förderbandes und Antriebseinrichtung für ein Förderband
DE10060459A1 (de) * 2000-09-21 2002-04-11 Gert Koenig Spannverankerung und Koppelung für Stahl- und Faserlamellen
FR2822177B1 (fr) * 2001-03-15 2004-04-30 Freyssinet Int Stup Dispositif d'ancrage pour armatures de precontrainte, systeme de precontrainte incluant le dispositif, et armature appropriee
DE10129216C1 (de) 2001-06-19 2003-05-15 Leonhardt Andrae Und Partner B Spannanker für bandförmige Zugglieder im Bauwesen
DE10134777B4 (de) * 2001-07-06 2008-11-20 Martin Krone Bauwerk und Verfahren zu seiner Herstellung
DE10237968B3 (de) * 2002-08-20 2004-02-05 Leonhardt, Andrä und Partner Beratende Ingenieure VBI GmbH Verfahren zum Anbringen von Zuggliedern an Tragwerken sowie Vorrichtung zur Durchführung des Verfahrens
DE10249266B3 (de) * 2002-10-23 2004-04-08 Leonhardt, Andrä und Partner Beratende Ingenieure VBI GmbH Spannvorrichtung für bandförmige Zugglieder
EP1507050A1 (fr) * 2003-08-13 2005-02-16 Sika Technology AG Elément de transfert de force
EP1507048A1 (fr) * 2003-08-14 2005-02-16 Sika Technology AG Procédé de mise sous tension d'un matériau composite
DE10341376A1 (de) * 2003-09-09 2005-03-31 Leonhardt, Andrä und Partner Beratende Ingenieure VBI GmbH Verankerung für bandförmige Zugglieder an Tragwerken
KR100605327B1 (ko) 2004-06-01 2006-07-26 한국건설기술연구원 섬유보강판 프리스트레싱 장치 및 이를 이용한 콘크리트구조물 보강방법
KR100588333B1 (ko) 2004-11-23 2006-06-14 (주)엠프로 외부 프리스트레싱용 섬유판 긴장장치
KR100660029B1 (ko) 2004-12-01 2006-12-20 한국건설기술연구원 프리스트레스트가 도입된 섬유보강복합체를 이용한 구조물빔 전단보강장치
KR100677847B1 (ko) 2005-01-20 2007-02-02 (주)엠프로 콘크리트구조물 프리스트레싱 보강장치 및 이를 이용한보강방법
US20060179740A1 (en) * 2005-01-31 2006-08-17 Pella Corporation Head and sill tensioning system
US20060283141A1 (en) * 2005-06-17 2006-12-21 Peter Brandstrom Device and method for securing, including earthquake resistant securing of equipment cabinets
KR100693873B1 (ko) 2006-05-03 2007-03-12 한국건설기술연구원 에프알피판 정착장치를 이용한 구조물 보수/보강방법
CH701655B1 (de) * 2008-02-08 2011-02-28 Josef Scherer Verfahren und Vorrichtung zum Vorspannen von Verstärkungslaminaten an Bauwerken.
EP2420622A1 (fr) * 2010-08-18 2012-02-22 Sika Technology AG Dispositif d'introduction de force dans des éléments de traction à partir de lamelles de bandes plates en matière synthétique renforcées en fibres
EP2447446A1 (fr) * 2010-10-28 2012-05-02 Sika Technology AG Ancrage terminal d'éléments de traction sur des supports en béton armé
FR2969196B1 (fr) * 2010-12-15 2014-02-07 Soletanche Freyssinet Procede de renforcement d'un ouvrage de construction mettant en oeuvre au moins une bande de renfort.
US8800232B1 (en) * 2011-04-04 2014-08-12 LEK Innovations, LLC Flange shear connection for precast concrete structures
CH706630B1 (de) * 2013-05-14 2013-12-31 S & P Clever Reinforcement Company Ag Verfahren zum Vorspannen eines Stahlbauwerkes sowie damit vorgespanntes Stahlbauwerk.
WO2016207372A1 (fr) * 2015-06-26 2016-12-29 Danmarks Tekniske Universitet Dispositif d'ancrage
CN105862608B (zh) * 2016-05-20 2017-09-19 东南大学 一种预应力纤维板加固梁板的自动化张拉系统及方法
JP7084768B2 (ja) * 2018-04-26 2022-06-15 ファイベックス株式会社 緊張材及び緊張材の製造方法
US11186991B2 (en) * 2018-10-31 2021-11-30 Shenzhen University Early warning device and ductility control method for prestressed FRP reinforced structure
US11174639B2 (en) * 2019-02-28 2021-11-16 Post Tensioning Solutions LLC Anchor block method for reanchoring live tendons
CN111188286B (zh) * 2020-01-13 2021-04-30 上海悍马建筑科技有限公司 一种粘接式预应力碳纤维板的拆卸方法
CN113846868B (zh) * 2021-11-10 2022-11-15 河海大学 一种基于多层纤维布预应力施加的加固装置及加固方法
CN115370157B (zh) * 2022-08-11 2023-12-22 中国建筑第八工程局有限公司 一种etfe膜张拉夹具

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Also Published As

Publication number Publication date
EP1125031B1 (fr) 2003-07-23
DE59906385D1 (de) 2003-08-28
US6584738B1 (en) 2003-07-01
DE19849605A1 (de) 2000-05-04
ATE245750T1 (de) 2003-08-15
WO2000024989A1 (fr) 2000-05-04
DK1125031T3 (da) 2003-11-17

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