EP1507052A1 - Elément de transfert de force - Google Patents

Elément de transfert de force Download PDF

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Publication number
EP1507052A1
EP1507052A1 EP03018366A EP03018366A EP1507052A1 EP 1507052 A1 EP1507052 A1 EP 1507052A1 EP 03018366 A EP03018366 A EP 03018366A EP 03018366 A EP03018366 A EP 03018366A EP 1507052 A1 EP1507052 A1 EP 1507052A1
Authority
EP
European Patent Office
Prior art keywords
composite material
force introduction
pressure plate
introduction element
recess
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.)
Withdrawn
Application number
EP03018366A
Other languages
German (de)
English (en)
Inventor
Christoph Rüegg
Reto Clénin
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.)
Sika Technology AG
Original Assignee
Sika Technology 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 Sika Technology AG filed Critical Sika Technology AG
Priority to EP03018366A priority Critical patent/EP1507052A1/fr
Publication of EP1507052A1 publication Critical patent/EP1507052A1/fr
Withdrawn legal-status Critical Current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
    • E04C5/12—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
    • 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

Definitions

  • the invention is based on a force introduction element for anchoring a band-shaped composite material according to the preamble of the first Claim.
  • the invention also relates to a method for attaching a force introduction element to a support structure and the use of a force introduction element for reinforcing a supporting structure.
  • WO 99/10613 A1 and WO 96/21785 describe a force introduction element described that uses clamping wedges instead of bolts and plates, the be pressed onto the composite material via elliptical ring hoops. Around to keep the dimensions of these ring straps in an acceptable size, this is Force introduction limited to the composite material with a width of 60 mm.
  • the solution of the problem is thus by a new force introduction element for anchoring a band-shaped composite material to a support structure achieved, wherein at least one recess in the composite material is executed, through which at least one tension element is a pressure plate presses against the composite. With these pressure plates is a Power transmission from the support structure to the composite material.
  • the force introduction element may preferably represent a clamping head.
  • the advantages of the invention are, inter alia, that the inventive force introduction element for each width of the composite material can be used.
  • the recesses e.g. Holes are sharp-edged and damage with a diamond tipped hole Drill the composite material barely, bearing in mind that the Tensile elements up to a maximum of 50%, preferably 35% of the cross-sectional area transversely claim to the longitudinal direction of the band-shaped composite material, to the desired tensile force in the range of 180 to 250 kN when used to guarantee a force introduction element.
  • the force introduction elements are slim and flat, which minimizes the intervention in the support structure limited.
  • FIGS. 1, 1 a, 1 b and 2, 2 a, 2 b there is a force introduction element 1 shown.
  • FIGS. 1 and 1a and 1b show a force introduction element 1, via a cross-beam 2 to at least one threaded rod 9 in one not shown anchoring pipe or thrust mandrel is held, which in a borehole is secured in a support structure 10.
  • the threaded rod 9 is mounted laterally on the force introduction element 1, wherein this threaded rod 9 through the cross-Traverse 2 of the force introduction element 1 leads.
  • the composite material 5 is first using a press, which is at the end of the composite 5 is temporarily arranged, stretched in the pulling direction 11, and after that, this tension force is e.g. by turning a threaded screw 8 over introduced the cross-Traverse 2 in the threaded rod 9.
  • the force introduction element 1 comprises two pressure plates 3, wherein the Force introduction element 1 the composite material 5 with at least one tension element 4 evenly compressed.
  • the pressure plates 3 a have special surface, which e.g. by mechanical roughening with Grinding or by a chemical pretreatment or use of a Adhesive is achieved to the adhesion between pressure plate 3 and composite material 5 to improve.
  • tension elements 4 which protrude through the composite material 5, resulting in a uniform contact force the pressure plates 3 to the composite material 5.
  • Das Force introduction element 1 can be made slim and flat, which the Intervention in the support structure 10 is limited to a minimum.
  • the thickness of the Pressure plates 3 is preferably depending on the slat width / thickness between 0.5 - 1.5 cm. Also, the force introduction element 1 according to the invention is for larger slat widths, than previously possible, usable.
  • the tension members 4 may be metallic clips, bolts or screws be, by means of the tension elements 4, the pressure plates 3 with a uniform contact pressure to the composite material 5 are pressed.
  • the arrangement of the tension elements 4 takes place in such a way that an optimal Force reduction of the plate tension to the recess 6 of the tension element. 4 takes place.
  • the distance between the individual tension elements 4, measured from the edge of the recess, is preferably greater than 10 mm, in particular in a range of 15 to 30 mm.
  • the tension elements 4 are from the edge the recess 6 preferably at least 10 mm from the side of the plate edge in particular, they are in a range of 15 to 25 mm away.
  • the two pressure plates 3 are connected to the composite material 5 with pressed at least one tension element 4 or can be made using a Adhesive and at least one tension element 4 connected in two ways become.
  • the number, arrangement of the recesses 6 and the tension elements 4th and their dimensioning depends on the required contact pressure. They are only claimed on train and do not have dimensions for shear forces become.
  • the pressure plate 3 When assembling the arrangement of the tension elements 4 is first the pressure plate 3 fixed. Using a special template that with the Holes for the tension elements 4 on the pressure plate 3 coincides are with a diamond-tipped drill preferably sharp-edged and precise Recesses 6 performed by the composite material 5. The so executed Recesses 6 hardly damage the composite material 5. It has shown, that the diameters of the recesses 6 up to a maximum of 50%, preferably 35% of the cross-sectional area transverse to the longitudinal direction of the band-shaped Compound 5 can claim, for. a desired one Tensile force in the range of 180 to 250 kN when using the force application element 1 to guarantee.
  • the cross-Traverse 2 can frontally to the force application element. 1 be arranged and can consist of one piece, in which case the composite material 5 is guided by the cross-Traverse 2.
  • the cross-beam can also consist of two or more parts, in which case the parts after the covering of the composite material 5 are screwed together.
  • the composite material 5 can be configured in the form of a lamella, which consists of fibers and a synthetic resin.
  • the fiber can be in one direction i.e. be formed unidirectionally or additionally fibers in others Directions, in particular an angle plus 45 ° and minus 45 °, to the unidirectional Main fiber direction be constructed.
  • the fibers may preferably made of aramid, carbon, glass, etc., which are embedded in a synthetic resin.
  • the synthetic resin may be a duromer such as e.g. Epoxy, acrylates or a thermoplastic Material, such as Polyamide, epoxy, acrylates.
  • the surface of the composite material 5 is preferably specially embossed, e.g. roughened by grinding or pretreated with an adhesive or with a pretreatment system, such as. Treated primer, plasma, etc.
  • the pressure plates 3 can be wider than the composite material 5 be executed. Then in the overhang area, outside the area of the composite material 5, holes may be arranged in the pressure plate 3. This has the advantage that after biasing in the pulling direction 11 through this positioned next to the composite material 5 holes in the pressure plates Screw into the support structure 10 to relieve or eliminate the threaded rod 9 can be set.
  • FIGs 1 and 1a show that the composite material 5 with two tension elements 4 is held over pressure plates 3.
  • Figure 1b the composite material 5 held with four tension elements 4.
  • FIGS. 2 and 2 a and 2 b show a further embodiment, in which the cross-traverse arranged substantially centrally of the pressure plates 3 is.
  • the voltage spikes that occur are in the voltage diagram 7 and are comparable to those in FIG.
  • the cross traverse can be attached to a be arranged anywhere on the pressure plates 3.
  • the number of Tension elements is irrelevant in itself and must meet the respective requirements be adjusted. If necessary, it can also use only one pressure plate become.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP03018366A 2003-08-13 2003-08-13 Elément de transfert de force Withdrawn EP1507052A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03018366A EP1507052A1 (fr) 2003-08-13 2003-08-13 Elément de transfert de force

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03018366A EP1507052A1 (fr) 2003-08-13 2003-08-13 Elément de transfert de force

Publications (1)

Publication Number Publication Date
EP1507052A1 true EP1507052A1 (fr) 2005-02-16

Family

ID=33560788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03018366A Withdrawn EP1507052A1 (fr) 2003-08-13 2003-08-13 Elément de transfert de force

Country Status (1)

Country Link
EP (1) EP1507052A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105064616A (zh) * 2015-08-04 2015-11-18 湖南磐固土木技术发展有限公司 一种用于碳纤维板转向的锚具

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04285247A (ja) * 1991-03-15 1992-10-09 Shimizu Corp プレストレス導入部材およびプレストレス導入方法
JPH06193281A (ja) * 1992-12-25 1994-07-12 Tonen Corp 一方向配列強化繊維シートによるコンクリート補修方法
WO1996021785A1 (fr) 1995-01-09 1996-07-18 Eidgenössische Materialprüfungs- und Forschungsanstalt Empa Systeme de fixation de lamelles de renforcement
WO1999010613A1 (fr) 1997-08-26 1999-03-04 Stresshead Ag Dispositif de renfort pour structures porteuses
JPH11182061A (ja) * 1997-12-24 1999-07-06 Chishin Go 繊維材緊張によるコンクリート部材の補強方法及び補強構造
JP2002364185A (ja) * 2001-06-12 2002-12-18 Faibekkusu Kk 構造物補強シートの緊張接着補強方法及び装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04285247A (ja) * 1991-03-15 1992-10-09 Shimizu Corp プレストレス導入部材およびプレストレス導入方法
JPH06193281A (ja) * 1992-12-25 1994-07-12 Tonen Corp 一方向配列強化繊維シートによるコンクリート補修方法
WO1996021785A1 (fr) 1995-01-09 1996-07-18 Eidgenössische Materialprüfungs- und Forschungsanstalt Empa Systeme de fixation de lamelles de renforcement
WO1999010613A1 (fr) 1997-08-26 1999-03-04 Stresshead Ag Dispositif de renfort pour structures porteuses
JPH11182061A (ja) * 1997-12-24 1999-07-06 Chishin Go 繊維材緊張によるコンクリート部材の補強方法及び補強構造
JP2002364185A (ja) * 2001-06-12 2002-12-18 Faibekkusu Kk 構造物補強シートの緊張接着補強方法及び装置

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 0170, no. 88 (M - 1370) 22 February 1993 (1993-02-22) *
PATENT ABSTRACTS OF JAPAN vol. 0185, no. 48 (M - 1689) 19 October 1994 (1994-10-19) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 12 29 October 1999 (1999-10-29) *
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 04 2 April 2003 (2003-04-02) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105064616A (zh) * 2015-08-04 2015-11-18 湖南磐固土木技术发展有限公司 一种用于碳纤维板转向的锚具

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