EP1554447A1 - Spannvorrichtung für bandförmige zugglieder - Google Patents
Spannvorrichtung für bandförmige zuggliederInfo
- Publication number
- EP1554447A1 EP1554447A1 EP03809255A EP03809255A EP1554447A1 EP 1554447 A1 EP1554447 A1 EP 1554447A1 EP 03809255 A EP03809255 A EP 03809255A EP 03809255 A EP03809255 A EP 03809255A EP 1554447 A1 EP1554447 A1 EP 1554447A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tensioning
- tension member
- tension
- anchor
- clamping
- 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
Links
- 239000004567 concrete Substances 0.000 claims description 16
- 238000005452 bending Methods 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- 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
-
- 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
-
- 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
- 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
-
- 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 band-shaped tension members on structures, in particular
- a tensioning device is attached to one end of the tension member, which is removed again after the tensioning process and the attachment of the tension member to the concrete structure, for example by permanent clamping and / or gluing.
- a tensioning device of the type mentioned at the beginning (DE 198 49 605 AI)
- the free end of the band-shaped tension member is clamped in a temporary tension anchor, which is moved by means of press elements, for example hydraulic cylinders, from a tensioning crossbar detachably attached to the base plate in lateral guides, whereby the tension member is tensioned.
- press elements for example hydraulic cylinders
- the tension anchor can only be held in a stable position against the concrete surface by rigidly connecting the lateral guides to the tension cross-beam in order to absorb the bending stresses that arise when the tension anchor deflects. This requires considerable design effort, which not only makes the tensioning device difficult and unwieldy, but also increases the space requirement, so that a relatively large recess must be made in the concrete surface for the arrangement of the tensioning device.
- the object of the invention is therefore to design a tensioning device of the type mentioned at the outset in such a way that the tensioning anchor is held stable in its desired position by the forces occurring during the tensioning process, without the guides being subjected to bending stress.
- a support that slidably supports the tension member at least upwards Guide body between the tensioning crossbeam and the tensioning anchor is arranged stationary.
- the guide body forms a deflection point arranged on the tensioning side at a distance in front of the tensioning crossbar
- Tension member If the support point 'of the press elements and the lateral guides, such as guide bars, viewed on the clamping cross-member as a hinge, so the clamping anchor can only move along a circular path whose radius is greater than the existing between the Fuhrungskorper and the clamping anchor spacing. In order to allow this pivoting movement of the tension anchor, the tension member would have to be stretched and thus tensioned even further.
- the tension force exerted by the tension member on the tension anchor therefore keeps the tension anchor stable in its predetermined position on the structure, for example the concrete surface, without the guide rods being subjected to bending stress.
- the guide rods which are only subjected to pressure, can therefore; run relatively slim because. they do not have to transmit bending moments.
- the tensioning device as a whole is light and relatively narrow, so that its lateral space requirement is small and the size of the required recess in the surface of the structure, for example the concrete surface, is limited.
- the guide body supporting the tension member upward is arranged in the region of the tension member and thus does not protrude laterally beyond the guide rods, it does not increase the dimensions of the tensioning device.
- the guide body slidably receives the tension member in a guide slot, so that all-round guidance of the tension member is achieved.
- the guide body is attached to a guide support which is connected rigidly to the tensioning crossbeam.
- the hold-down force applied to stabilize the tension member is transmitted directly to the tensioning beam.
- the guide carrier is preferably arranged on the upper side of the tension member and has side sections which project laterally beyond the tension member and are detachably connected to a bracket located under the tension member. This allows the guide body having a guide slot after completion of the clamping process and the determination of the
- Tension member can be solved in a simple manner.
- the press elements lie in the plane of the tension member and that the tensioning anchor is supported by block or the like. takes place in the plane of the tension member.
- an unstable equilibrium is achieved during tensioning and in the locked state, which only has to be secured by the guide body without the guide body having to absorb significant forces.
- FIG. 1 is a plan view of a band-shaped tension member attached to a concrete structure with an anchoring device on its fixed side and a tensioning device on its tensioning side,
- Fig. 3 is a section along the line III-III in Fig. 1 and
- Fig. 4 is a schematic representation of the
- a band-shaped tension member 1 for example a carbon fiber reinforced plastic lamella, is intended for attachment to the surface of a supporting structure, in the illustrated embodiment of a concrete supporting structure 2. It can also be used with other structures, for example made of steel or wood. Before it is attached to the concrete structure 2, the tension member 1 must be prestressed.
- the tension member 1 is fixed to a base plate 5 by means of a clamping plate 3, on which a plurality of clamping brackets 4 act, which is provided by dowels 6 and an adhesive layer 7 in a recess 8 of the concrete structure 2 is set.
- a base plate 9 is fixed at the tension-side end (left in FIGS. 1 and 2) of the tension member 1 by means of dowels 10 and an adhesive layer 11 in a recess 12 of the concrete structure 2.
- a clamping plate not yet shown in FIGS.
- the tensioning device 13 has a tensioning crossbar 14 which is provided with two tabs 15 which are detachably fastened to the base plate 9 by means of screws 16 on both sides of the tension member 1. A rigid, releasable connection between the tensioning crossbeam 14 and the base plate 9 is thus produced.
- clamp side On the crossbar 14 are supported on the side facing away from the base plate 9 (referred to in this context as “clamping side”) two press elements 17, which in the exemplary embodiment shown as
- Hydraulic cylinders are executed.
- the two press elements 17 lie in the plane of the tension member 1. They press a tension anchor 18 away from the tensioning cross member 14.
- the tensioning anchor 18 is guided on both sides on lateral guide rods 19 which are connected to the tensioning crossbar 14. In its tensioned position, the tensioning anchor 18 can be fixed on the lateral guide rods 19, so that it is then also supported on the tensioning crossbar 14 via the guide rods 19 after the press elements 17 have been released.
- another type of block can be chosen, around which Support tension anchor 18. The support or block is in this embodiment in the plane of the tension member 1st
- the tension anchor 18 has a lower plate 20 on which the tension member 1 rests.
- the tension member 1 is by
- a guide beam 24 is made in one piece with the tensioning crossbar 14, welded to it or in some other way, for example by means of screws, rigidly attached to the tensioning crossbar 14 and forms at its free end a guide body 25 lying on the upper side of the tension member 1, which is between the tensioning crossbar 14 and the tension anchor 18 and is arranged at a distance from the tensioning side to the tensioning crossbar 14.
- .hinausragende side portions 26 which are detachably connected to a below the tension member 1 strap 27, preferably not necessarily connected by lateral screws 28.
- the 'guide body 25 must be the clamping crosshead 14: it can fixedly mounted in other ways, e.g. be connected to the structure, here with the concrete structure 2.
- a guide slot 29 is formed which slidably receives the tension member 1.
- the guide body 25 forms a deflection point for the tension member 1, which is located on the tensioning side at a distance from the tensioning crossbar 14.
- the clamping anchor 18 has a possibility of movement on a radius R which is equal to the distance between the clamping crossbar 14 and the clamping anchor 18.
Landscapes
- 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)
- Reinforcement Elements For Buildings (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
- Knitting Machines (AREA)
- Sewing Machines And Sewing (AREA)
- Clamps And Clips (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Basic Packing Technique (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Working Measures On Existing Buildindgs (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10249266A DE10249266B3 (de) | 2002-10-23 | 2002-10-23 | Spannvorrichtung für bandförmige Zugglieder |
| DE10249266 | 2002-10-23 | ||
| PCT/EP2003/009079 WO2004038128A1 (de) | 2002-10-23 | 2003-08-16 | Spannvorrichtung für bandförmige zugglieder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1554447A1 true EP1554447A1 (de) | 2005-07-20 |
| EP1554447B1 EP1554447B1 (de) | 2010-07-21 |
Family
ID=31984425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03809255A Expired - Lifetime EP1554447B1 (de) | 2002-10-23 | 2003-08-16 | Spannvorrichtung für bandförmige zugglieder |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20050252116A1 (de) |
| EP (1) | EP1554447B1 (de) |
| JP (1) | JP2006504005A (de) |
| KR (1) | KR20050032031A (de) |
| AT (1) | ATE474981T1 (de) |
| AU (1) | AU2003253415A1 (de) |
| DE (2) | DE10249266B3 (de) |
| DK (1) | DK1554447T3 (de) |
| WO (1) | WO2004038128A1 (de) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1507050A1 (de) * | 2003-08-13 | 2005-02-16 | Sika Technology AG | Krafteinleitungselement |
| CH701655B1 (de) * | 2008-02-08 | 2011-02-28 | Josef Scherer | Verfahren und Vorrichtung zum Vorspannen von Verstärkungslaminaten an Bauwerken. |
| US8904721B2 (en) * | 2008-06-12 | 2014-12-09 | University Of Utah Research Foundation | Anchoring, splicing and tensioning elongated reinforcement members |
| EP2313554A2 (de) * | 2008-06-12 | 2011-04-27 | University of Utah Research Foundation | Verankern, spleissen und spannen von länglichen verstärkungsgliedern |
| WO2011130298A1 (en) | 2010-04-13 | 2011-10-20 | The University Of Utach Research Foundation | Sheet and rod attachment apparatus and system |
| EP2447446A1 (de) | 2010-10-28 | 2012-05-02 | Sika Technology AG | Endverankerung von Zuggliedern an Stahlbetonträgern |
| 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. |
| CH706630B1 (de) * | 2013-05-14 | 2013-12-31 | S & P Clever Reinforcement Company Ag | Verfahren zum Vorspannen eines Stahlbauwerkes sowie damit vorgespanntes Stahlbauwerk. |
| CN103541513B (zh) * | 2013-09-22 | 2016-04-20 | 沈阳建筑大学 | 一种内镶frp筋加固混凝土锚固件 |
| AU2016282937A1 (en) * | 2015-06-26 | 2018-01-18 | Danmarks Tekniske Universitet | Anchorage device |
| CN105781123A (zh) * | 2016-05-06 | 2016-07-20 | 西南交通大学 | 碳纤维板机械夹持锚具以及加固装置 |
| 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 |
| CN106285038B (zh) * | 2016-09-23 | 2023-01-24 | 长沙理工大学 | 一种分离式预应力碳纤维布张拉粘贴装置及方法 |
| DE102017203645B4 (de) * | 2017-03-07 | 2020-07-02 | KB Vorspann-Technik GmbH | System zum Vorspannen eines Turmbauwerks |
| ES2775794T3 (es) * | 2017-03-07 | 2020-07-28 | Kb Vorspann Technik Gmbh | Procedimiento, dispositivo de bloqueo y sistema para pretensar una estructura de torre |
| WO2020087887A1 (zh) * | 2018-10-31 | 2020-05-07 | 深圳大学 | 预应力frp加固结构的预警装置及延性调控方法 |
| CN111794545B (zh) * | 2020-06-16 | 2024-11-01 | 深圳大学 | 一种预应力加固装置及预应力加载施工方法 |
| CN117449608B (zh) * | 2023-12-26 | 2024-03-12 | 福建理工大学 | 一种用于弧面结构的自动调平碳纤维板预应力张拉装置 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3290840A (en) * | 1962-07-20 | 1966-12-13 | Prescon Corp | Method and means for chemically prestressing concrete |
| FR1426231A (fr) * | 1964-11-25 | 1966-01-28 | Union Tech Interfederale Du Ba | Perfectionnements aux éléments de constructions renforcés |
| BE789655R (fr) * | 1965-05-21 | 1973-04-04 | Birguer Alexandre Rue Lincoln | Poutres composites et precontraintes en acier-beton et leur procede de |
| JP2700268B2 (ja) | 1989-04-04 | 1998-01-19 | 東急建設株式会社 | 炭素繊維強化プラスチック平面板の定着方法及び定着装置 |
| MX9200051A (es) * | 1992-01-07 | 1993-07-01 | Jose Luis Siller Franco | Concector por friccion mejorado para anclar acero de refuerzo a tension en elementos de concreto preesforzado o reforzado. |
| CH687399A5 (de) * | 1992-04-06 | 1996-11-29 | Eidgenoessische Materialpruefung | Verfahren und Vorrichtung zur Schubverstaerkung an einem Bauwerkteil. |
| AU3977195A (en) * | 1995-01-09 | 1996-07-31 | Eidgenossische Materialprufungs- Und Forschungsanstalt Empa | Securing of reinforcing strips |
| US5768847A (en) * | 1995-05-15 | 1998-06-23 | Policelli; Frederick J. | Concrete reinforcing devices, concrete reinforced structures, and method of and apparatus for producing such devices and structures |
| DE19742210A1 (de) * | 1997-09-24 | 1999-03-25 | Goehler Bernhard Dipl Ing | Verfahren und bandförmiges Zugglied zur Ertüchtigung und/oder Sanierung von Stahlbeton- oder Spannbeton-Tragwerken sowie Vorrichtung zur Durchführung des Vefahrens |
| DE19849605A1 (de) * | 1998-10-28 | 2000-05-04 | Goehler Andrae Und Partner Ber | Spannvorrichtung für ein bandförmiges Zugglied |
| DE19944573A1 (de) | 1999-09-17 | 2001-03-22 | Josef Scherer | Verstärkungsanordnung für Bauwerke und Bauwerksteile |
-
2002
- 2002-10-23 DE DE10249266A patent/DE10249266B3/de not_active Expired - Fee Related
-
2003
- 2003-08-16 WO PCT/EP2003/009079 patent/WO2004038128A1/de not_active Ceased
- 2003-08-16 EP EP03809255A patent/EP1554447B1/de not_active Expired - Lifetime
- 2003-08-16 AT AT03809255T patent/ATE474981T1/de active
- 2003-08-16 JP JP2004545755A patent/JP2006504005A/ja not_active Withdrawn
- 2003-08-16 AU AU2003253415A patent/AU2003253415A1/en not_active Abandoned
- 2003-08-16 DE DE50312912T patent/DE50312912D1/de not_active Expired - Lifetime
- 2003-08-16 US US10/517,988 patent/US20050252116A1/en not_active Abandoned
- 2003-08-16 DK DK03809255.7T patent/DK1554447T3/da active
- 2003-08-16 KR KR1020047018154A patent/KR20050032031A/ko not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004038128A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE474981T1 (de) | 2010-08-15 |
| DE50312912D1 (de) | 2010-09-02 |
| EP1554447B1 (de) | 2010-07-21 |
| US20050252116A1 (en) | 2005-11-17 |
| JP2006504005A (ja) | 2006-02-02 |
| KR20050032031A (ko) | 2005-04-06 |
| AU2003253415A1 (en) | 2004-05-13 |
| WO2004038128A1 (de) | 2004-05-06 |
| DK1554447T3 (da) | 2010-10-04 |
| DE10249266B3 (de) | 2004-04-08 |
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Legal Events
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