EP1000209B1 - Procede pour la fixation d'une lamelle de bande plate sur une surface d'element de construction - Google Patents

Procede pour la fixation d'une lamelle de bande plate sur une surface d'element de construction Download PDF

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Publication number
EP1000209B1
EP1000209B1 EP98941331A EP98941331A EP1000209B1 EP 1000209 B1 EP1000209 B1 EP 1000209B1 EP 98941331 A EP98941331 A EP 98941331A EP 98941331 A EP98941331 A EP 98941331A EP 1000209 B1 EP1000209 B1 EP 1000209B1
Authority
EP
European Patent Office
Prior art keywords
flat strip
strip lamella
lamella
process according
measured
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.)
Expired - Lifetime
Application number
EP98941331A
Other languages
German (de)
English (en)
Other versions
EP1000209A1 (fr
Inventor
Alexander Bleibler
Ernesto Schümperli
Werner Steiner
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 Schweiz AG
Original Assignee
Sika AG
Sika AG Vorm Kaspar Winkler and Co
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Filing date
Publication date
Application filed by Sika AG, Sika AG Vorm Kaspar Winkler and Co filed Critical Sika AG
Publication of EP1000209A1 publication Critical patent/EP1000209A1/fr
Application granted granted Critical
Publication of EP1000209B1 publication Critical patent/EP1000209B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • 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

Definitions

  • the invention relates to a method for fastening one of a variety of into a binder matrix embedded, parallel to each other in the longitudinal direction of the slats aligned carbon fibers existing Flat ribbon lamella on a component surface, in which the flat strip lamella with a broad side over one applied in a pasty consistency, from a reaction resin existing adhesive layer against the component surface pressed and the adhesive layer under Production of an adhesive connection is cured.
  • Ribbon slats of this type are e.g. known from WO-A-96/21785 and are used to reinforce load-bearing or load-transmitting components. They are usually covered with an adhesive layer made of epoxy resin glued to the component surface. This procedure is often considered to be disadvantageous felt that for the curing of the adhesive a relative long time is required within that too reinforcing component or structure are not loaded may.
  • the invention is based on the object the procedure of the type specified in this regard to improve that with relatively simple means a significant acceleration of the curing process can be achieved.
  • the solution according to the invention assumes that the adhesive layer consisting of a reaction resin the faster the adhesive temperature, the faster it cures is.
  • the Invention proposed that at least by part the carbon fibers while heating the reinforcement lamella an electrical current passed through it the adhesive layer is heated via the reinforcing lamella becomes.
  • a certain have electrical conductivity for an ohmic Heating the flat ribbon lamella can be used can.
  • the adhesive layer is placed over the reinforcement lamella an average temperature of more than 40 ° C is heated. This can be done in the example of an epoxy resin adhesive at ambient temperature about one or two Days hardening time to one to two hours be reduced. Add to that curing at a higher temperature to a higher glass transition point and better strength properties of the Adhesive leads.
  • a preferred embodiment of the invention provides that at at least one point on the reinforcement lamella and / or the adhesive layer the temperature profile over time measured and by varying the over the Current source impressed electrical heating power set or regulate a predetermined course becomes.
  • the flat strip lamella 10 shown in the drawing is for the subsequent reinforcement of components 12, determined how reinforced concrete structures and masonry. They are with their one broadside 14 with the help of a preferably made of epoxy resin 16 attached to the surface of the component.
  • the flat strip lamella 10 has a composite structure a large number of parallel flexible or limp support fibers 26 made of carbon and from one the supporting fibers are shear-proof with each other connecting binder matrix 28 made of epoxy resin on.
  • the binder matrix 28 ensures that the Flat ribbon slat 10 is designed to be rigid.
  • a reaction adhesive preferably made of epoxy resin
  • the previously cut flat strip lamella 10 is then pressed against the component surface via the adhesive layer 16.
  • the flat strip lamella 10 is heated with the aid of an electric current.
  • metal plates 18 are pressed at the ends of the flat strip lamella against the lamella surface, so that an electrical contact is produced.
  • the fin ends can be roughened or ground beforehand with the exposure of some carbon fibers 26.
  • the metal plates 18 are connected via the lines 20 to a current source 22, so that an electrical current can be passed through the carbon fibers 26 contacted with the metal plates 18.
  • the carbon fibers 26 form a heating resistor for heating the flat strip lamella.
  • a dimmer controlled for example, according to the phase control method will be used for the heating power setting.
  • the flat strip slat can be used a temperature sensor 24 are coupled, the output signal to control or regulate the heating output can be used.
  • the invention refers to a method of attaching a Flat strip lamella 10 on a component surface 12, in which the flat strip lamella 10 with a broad side 14 via a paste-like consistency, adhesive layer 16 consisting of a reaction resin against pressed the component surface and the adhesive layer 16 cured to produce an adhesive bond becomes.
  • the flat strip lamella 10 consists of a large number of embedded in a binder matrix 28 aligned parallel to each other in the longitudinal direction Carbon fibers 26.
  • To harden the adhesive layer to accelerate is proposed according to the invention that at least through some of the carbon fibers 26 while heating the flat strip lamella 10 an electrical current is passed through and over the flat strip lamella 10 heated the adhesive layer 16 becomes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Surface Heating Bodies (AREA)
  • Moulding By Coating Moulds (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Catalysts (AREA)
  • Finishing Walls (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Laminated Bodies (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Claims (9)

  1. Procédé pour la fixation d'une lamelle de bande plate (10) souple, composée d'une multitude de fibres en carbone (26) logées dans une matrice de liant (28) résistante aux poussées et orientées parallèlement les unes aux autres dans le sens longitudinal, sur une surface d'élément de construction, dans le cas duquel procédé la lamelle de bande plate (10) est pressée contre la surface d'élément de construction avec un côté large sur une couche de colle (16) composée de résine composite et appliquée en consistance pâteuse, et dans le cas duquel la couche de colle (16) est durcie en produisant un assemblage collé, caractérisé en ce qu'un courant électrique est conduit au moins au travers d'une partie des fibres de carbone (26) en échauffant la lamelle de bande plate (10) et qu'ainsi la couche de colle (16) est échauffée sur l'un des côtés larges de la lamelle de bande plate (10).
  2. Procédé selon la revendication 1, caractérisé en ce que la couche de colle (16) est échauffée sur la lamelle de bande plate à une température moyenne supérieure à 40°C.
  3. Procédé selon la revendication 1ou 2, caractérisé en ce qu'une plaque de contact métallique (18) pouvant être raccordée à une source de courant est respectivement pressée contre les extrémités de la lamelle de bande plate (10).
  4. Procédé selon la revendication 3, caractérisé en ce que la surface de lamelle de bande plate, avant d'être pressée contre la plaque métallique (18), est grattée ou affûtée en mettant à nu des fibres de carbone (26) au point de contact.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que la courbe de température temporelle est mesurée à au moins un endroit de la lamelle de bande plate (10) et/ou de la couche de colle (16), et qu'elle est réglée ou régulée sur une courbe prédéfinie par la variation de la puissance calorifique électrique appliquée par l'intermédiaire de la source de courant (22).
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que la résistance électrique (R) de la lamelle de bande plate (10) s'étendant entre les plaques de contact métalliques (18) est mesurée avant l'opération d'échauffement et la tension électrique et/ou l'intensité de courant est réglée sur une valeur définie suivant une densité de puissance calorifique prédéfinie relative à la surface en tenant compte de la résistance mesurée.
  7. Procédé selon la revendication 6, caractérisé en ce qu'une tension électrique est réglée sur la source de courant (22) selon l'équation : U = q.l.b.R, l et b étant la longueur et la largeur de la lamelle de bande plate concernée, R la résistance électrique mesurée, et q une densité de puissance calorifique à sélectionner selon un temps d'échauffement souhaité.
  8. Procédé selon la revendication 6, caractérisé en ce qu'une intensité de courant est réglée par l'intermédiaire de la source de courant (22) selon l'équation : I = q.l.b/R, I et b étant la longueur et la largeur de la lamelle de bande plate concernée, R la résistance électrique mesurée, et q une densité de puissance calorifique à sélectionner selon un temps d'échauffement souhaité.
  9. Procédé selon la revendication 7 ou 8, caractérisé en ce que pour la donnée q, on sélectionne une valeur comprise entre 1 et 20 W/cm2.
EP98941331A 1997-07-31 1998-07-15 Procede pour la fixation d'une lamelle de bande plate sur une surface d'element de construction Expired - Lifetime EP1000209B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19733066 1997-07-31
DE19733066A DE19733066A1 (de) 1997-07-31 1997-07-31 Verfahren zur Befestigung einer Flachbandlamelle an einer Bauteiloberfläche
PCT/EP1998/004384 WO1999006652A1 (fr) 1997-07-31 1998-07-15 Procede pour la fixation d'une lamelle de bande plate sur une surface d'element de construction

Publications (2)

Publication Number Publication Date
EP1000209A1 EP1000209A1 (fr) 2000-05-17
EP1000209B1 true EP1000209B1 (fr) 2001-10-17

Family

ID=7837537

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98941331A Expired - Lifetime EP1000209B1 (fr) 1997-07-31 1998-07-15 Procede pour la fixation d'une lamelle de bande plate sur une surface d'element de construction

Country Status (18)

Country Link
US (1) US6605168B1 (fr)
EP (1) EP1000209B1 (fr)
JP (1) JP2002526691A (fr)
KR (1) KR20010022461A (fr)
CN (1) CN1135289C (fr)
AT (1) ATE207176T1 (fr)
AU (1) AU738761B2 (fr)
CA (1) CA2298521C (fr)
DE (2) DE19733066A1 (fr)
DK (1) DK1000209T3 (fr)
ES (1) ES2164453T3 (fr)
HK (1) HK1024038A1 (fr)
ID (1) ID24747A (fr)
NZ (1) NZ502145A (fr)
PL (1) PL338430A1 (fr)
PT (1) PT1000209E (fr)
TR (1) TR200000260T2 (fr)
WO (1) WO1999006652A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2851254A1 (fr) * 2003-02-13 2004-08-20 Paniplast Procede permettant d'accelerer la cinetique des collages realises par apports d'energie
FR2948712B1 (fr) * 2009-08-03 2015-03-06 Soletanche Freyssinet Procede de renforcement d'une structure de construction, et ouvrage ainsi renforce
FR2958992B1 (fr) 2010-04-14 2012-05-04 Total Sa Conduite pour le transport d'un fluide comprenant un hydrocarbure, et procede de fabrication d'une telle conduite.
FR2958991B1 (fr) 2010-04-14 2012-05-04 Total Sa Conduite pour le transport d'un fluide comprenant un hydrocarbure, et procede de fabrication d'une telle conduite.
FR2958995B1 (fr) 2010-04-14 2012-05-04 Total Sa Dispositif de chauffage pour dispositif de transport d'un fluide comprenant un hydrocarbure
WO2012140058A2 (fr) * 2011-04-11 2012-10-18 Lm Wind Power A/S Pale d'éolienne comprenant un moyen de chauffage résistif
CN102649302A (zh) * 2012-05-15 2012-08-29 厦门谨天碳纤维制品有限公司 一种在结构件外表面进行碳纤维披覆的成型工艺
CN105714697B (zh) * 2016-03-14 2017-11-03 岩土科技股份有限公司 基于预应力钢板的混凝土桥梁板加固方法
CN109406582A (zh) * 2018-12-28 2019-03-01 南水北调东线总公司 一种利用碳纤维阻值变化的结构损伤检测方法
CN111852062A (zh) * 2020-03-19 2020-10-30 同济大学 利用碳纳米管碳纤维板加固并监测钢构件疲劳性能的装置
FR3139149A1 (fr) 2022-08-26 2024-03-01 Soletanche Freyssinet Procédé pour renforcer un ouvrage de construction et dispositif pour un tel procédé

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DD137001A1 (de) * 1978-06-09 1979-08-08 Matthias Munse Einrichtung zum kaeltekleben von bauelementen mit reaktionsharzmassen
DE2928293C2 (de) * 1979-07-13 1986-08-07 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Verfahren zum Gewebeimprägnieren durch Harzinjektion
US4382113A (en) * 1981-03-23 1983-05-03 Energy Development Associates, Inc. Method for joining graphite to graphite
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Also Published As

Publication number Publication date
CA2298521C (fr) 2006-12-05
PL338430A1 (en) 2000-11-06
NZ502145A (en) 2002-11-26
PT1000209E (pt) 2002-04-29
WO1999006652A1 (fr) 1999-02-11
ES2164453T3 (es) 2002-02-16
ID24747A (id) 2000-08-03
DE19733066A1 (de) 1999-02-04
JP2002526691A (ja) 2002-08-20
AU738761B2 (en) 2001-09-27
KR20010022461A (ko) 2001-03-15
EP1000209A1 (fr) 2000-05-17
US6605168B1 (en) 2003-08-12
TR200000260T2 (tr) 2000-05-22
CN1265720A (zh) 2000-09-06
HK1024038A1 (en) 2000-09-29
ATE207176T1 (de) 2001-11-15
DK1000209T3 (da) 2002-02-11
CA2298521A1 (fr) 1999-02-11
DE59801804D1 (de) 2001-11-22
CN1135289C (zh) 2004-01-21
AU8975398A (en) 1999-02-22

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