EP1000208A1 - Lamelle de bande plate pour renforcer des elements de construction, ainsi que procede pour poser cette lamelle sur un element de construction - Google Patents

Lamelle de bande plate pour renforcer des elements de construction, ainsi que procede pour poser cette lamelle sur un element de construction

Info

Publication number
EP1000208A1
EP1000208A1 EP98941330A EP98941330A EP1000208A1 EP 1000208 A1 EP1000208 A1 EP 1000208A1 EP 98941330 A EP98941330 A EP 98941330A EP 98941330 A EP98941330 A EP 98941330A EP 1000208 A1 EP1000208 A1 EP 1000208A1
Authority
EP
European Patent Office
Prior art keywords
flat strip
component
strip lamella
lamella
adhesive
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
EP98941330A
Other languages
German (de)
English (en)
Other versions
EP1000208B1 (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
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 AG filed Critical Sika AG
Publication of EP1000208A1 publication Critical patent/EP1000208A1/fr
Application granted granted Critical
Publication of EP1000208B1 publication Critical patent/EP1000208B1/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
    • 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
    • E04G23/0225—Increasing or restoring the load-bearing capacity of building construction elements of circular building elements, e.g. by circular bracing
    • 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
    • E04G2023/0259—Devices specifically adapted to stress the fiber reinforced plastic elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1028—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by bending, drawing or stretch forming sheet to assume shape of configured lamina while in contact therewith
    • Y10T156/103—Encasing or enveloping the configured lamina

Definitions

  • Ribbon slat for reinforcing components and method for attaching the ribbon slat to a component
  • the invention relates to a flat strip lamella for reinforcing load-bearing or load-transmitting components, which consists of a composite structure made up of a plurality of flexible or pliable support fibers aligned parallel to one another and a binder matrix which connects the support fibers in a shear-resistant manner and which is broadly bonded to the surface of the by means of an adhesive reinforcing component can be attached.
  • the invention further relates to a method for attaching such flat ribbon slats to a component.
  • Reinforcement slats of this type are known, for example, from WO 96/21785.
  • the reinforcement slats are used there on elongated and / or flat components.
  • the reinforcing lamellae which have a binder matrix made of a thermoset, in particular of epoxy resin, do not allow any bends with small bending radii, so that bow-like reinforcements which run over a component edge were not possible with this.
  • Bow-shaped reinforcements are required, for example, to ensure the connection between the compression and tensile zones in reinforced concrete beams and reinforced concrete slab beams and to avoid shear and transverse cracks. Proceeding from this, the object of the invention is to develop a flat strip lamella which enables components to be reinforced across edges. Another object of the invention is to develop a method for attaching such flat ribbon slats to components.
  • the binder matrix consists of a thermoplastic.
  • a thermoplastic from the group of polyolefins, vinyl polymers, polyamides, polyesters, polyacetals, polycarbonates and thermoplastic polyurethanes and ionomers can be used to form the binder matrix.
  • the carrier fibers are expediently designed as carbon fibers, which are distinguished by a high modulus of elasticity.
  • the carrier fibers can also contain or consist of aramid fibers, glass fibers, polypropylene fibers and the like.
  • the flat strip slat heats up in its intermediate region to be led over the component edge to a temperature above the glass transition point of the thermoplastic binder , bent in the heated state by an angle corresponding to the edge angle of the component and before or after cooling on the component across the component edge by means of an adhesive layer.
  • thermoplastic binder matrix makes it possible to apply the flat strip lamellae to a component surface in the prestressed state.
  • the flat strip slats With their free ends protruding from the surface of the component to be reinforced, the flat strip slats can be heated to a tensioning Mount or bend the element and fix it.
  • the clamping elements can then be braced against each other so that the flat strip lamella can be glued to the component surface in the prestressed state.
  • a clamping mechanism arranged at a distance from the component surface to be reinforced can be provided for clamping the clamping elements.
  • the tensioning mechanism can also only act on one end of the flat strip lamella if the other end is fixed to the component surface by a suitable tensioning element.
  • thermoplastic binder matrix according to the invention, there is also the possibility of the free ends of the flat strip lamella being influenced by
  • the flat strip lamella with the thermoplastic binder matrix according to the invention can also be used to reinforce columnar components.
  • the flat strip lamella heated to a temperature above the glass transition area of the binder matrix is spirally wound onto the surface of the columnar component coated with a liquid reaction adhesive and in the wound state at the same time the adhesive has cooled down to the use temperature.
  • the surface of the flat strip lamella is freed from the binder by exposing carrier fiber surfaces, for example by roughening or sanding.
  • the invention is based on the in the
  • Figure la is a plan view of a section of a reinforcing lamella.
  • Fig. Lb shows a section along the section line B-B of Fig la in an enlarged view.
  • Figure 2 shows a section through a reinforced concrete slab with a bow-shaped bent reinforcing lamella.
  • Fig. 3 shows one end of the reinforcing lamella, which in the component recess according to section III of the
  • Fig. 2 is insertable; 4 shows a tensioning device for the prestressed attachment of the reinforcing lamella to a component;
  • Fig. 5 is a partial side view of a columnar component spirally wrapped with a reinforcing lamella.
  • the flat strip slats 10 shown in the drawing are intended for the subsequent reinforcement of components 12, such as reinforced concrete structures and masonry. They are fastened with their one broad side 14 to the surface of the component with the aid of an adhesive 16 preferably made of epoxy resin and additionally anchored with their free ends 32, 34 to component 12 (FIG. 2).
  • the component 12 according to FIG. 2 is designed, for example, as a plate beam made of reinforced concrete, in which the lamella 10 extends in a bow-like manner over the web 22 of the component 12 and is thereby bent over the corner edges 24 of the web 22.
  • the flat strip lamella 10 has a composite structure composed of a plurality of flexible or pliable support fibers 26 made of carbon, which are aligned parallel to one another, and of a binder matrix 28 made of a thermoplastic plastic and connecting the support fibers in a shear-resistant manner.
  • the thermoplastic binder matrix 28 ensures that the flat strip lamella is relatively stiff and at through use Heating to a temperature above the glass transition point is plastically deformable.
  • they are heated at the intermediate region 30 to a temperature above the glass transition point of the thermoplastic binder matrix and are plastically bent by 90 ° in accordance with the possibly rounded corner angle. This bend is retained after cooling to the service temperature.
  • the free ends 36 of the flat strip lamella 10 are drawn onto drum-shaped clamping elements 38 in the heated, plastically deformable state and anchored there.
  • the clamping elements 38 can be displaced against one another in the direction of the double arrow 39 under the action of a suitable clamping mechanism, so that the flat strip lamella 10 also adheres to the component 12 Help of the adhesive 16 is biased. If the pretension is maintained until the adhesive has hardened, an improvement in the reinforcing effect is obtained.
  • a flat strip lamella 10 is wound spirally onto a columnar component 12 and glued to it.
  • the flat strip lamella is brought to an elevated temperature so that it can easily be brought into its spiral shape during winding.
  • the invention relates to a flat strip lamella 10 for reinforcing load-bearing or load-transmitting components 12, for example made of concrete, wood, steel, natural stone or masonry.
  • the flat strip lamella 10 has a composite structure made up of a multiplicity of parallel, flexible or pliable support fibers 26 and a binder matrix 28 which connects the support fibers in a shear-resistant manner. It can be fastened on the broad side to the surface of the component to be reinforced by means of an adhesive 16.
  • the binder matrix 28 consists of a thermoplastic.

Landscapes

  • Architecture (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Reinforced Plastic Materials (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Supports For Plants (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Package Frames And Binding Bands (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

L'invention concerne une lamelle de bande plate (10) destinée à renforcer des éléments de construction (12) soutenant ou transmettant la charge, par exemple en béton, bois, acier, pierre naturelle ou maçonnerie. Cette lamelle de bande plate (10) présente une structure composite constituée d'une pluralité de fibres porteuses (26) souples ou détendues en flexion, orientées parallèlement, et d'une matrice liante (28) reliant entre elles les fibres porteuses en leur conférant une résistance au cisaillement. La lamelle se fixe au moyen d'un adhésif (16) côté plat sur la surface de l'élément de construction à renforcer. Pour pouvoir plier la lamelle de bande plate même sur les arêtes cornières d'un élément de construction, la matrice liante (28) se compose d'un matériau thermoplastique.
EP98941330A 1997-07-31 1998-07-15 Lamelle de bande plate pour renforcer des elements de construction, ainsi que procede pour poser cette lamelle sur un element de construction Expired - Lifetime EP1000208B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19733067A DE19733067A1 (de) 1997-07-31 1997-07-31 Flachband-Lamelle zur Verstärkung von Bauteilen sowie Verfahren zur Anbringung der Flachband-Lamelle an einem Bauteil
DE19733067 1997-07-31
PCT/EP1998/004383 WO1999006651A1 (fr) 1997-07-31 1998-07-15 Lamelle de bande plate pour renforcer des elements de construction, ainsi que procede pour poser cette lamelle sur un element de construction

Publications (2)

Publication Number Publication Date
EP1000208A1 true EP1000208A1 (fr) 2000-05-17
EP1000208B1 EP1000208B1 (fr) 2001-11-14

Family

ID=7837538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98941330A Expired - Lifetime EP1000208B1 (fr) 1997-07-31 1998-07-15 Lamelle de bande plate pour renforcer des elements de construction, ainsi que procede pour poser cette lamelle sur un element de construction

Country Status (19)

Country Link
US (1) US20020124930A1 (fr)
EP (1) EP1000208B1 (fr)
JP (1) JP2001512200A (fr)
KR (1) KR100417892B1 (fr)
CN (1) CN1127603C (fr)
AT (1) ATE208852T1 (fr)
AU (1) AU738490B2 (fr)
BR (1) BR9811578A (fr)
CA (1) CA2278650C (fr)
DE (2) DE19733067A1 (fr)
DK (1) DK1000208T3 (fr)
ES (1) ES2166612T3 (fr)
HU (1) HU223369B1 (fr)
IL (1) IL134118A (fr)
NO (1) NO314002B1 (fr)
NZ (1) NZ336978A (fr)
PL (1) PL335439A1 (fr)
PT (1) PT1000208E (fr)
WO (1) WO1999006651A1 (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2397103A1 (fr) * 2000-01-13 2001-07-19 Dow Global Technologies Inc. Composites a base de resines thermoplastiques et de fibres renforcantes comme supports de structure externe
DE10032595A1 (de) * 2000-07-07 2002-01-17 Josef Scherer Armierung für Bauwerksoberflächen
US20020170651A1 (en) * 2001-05-15 2002-11-21 Edwards Christopher M. Method for reinforcing cementitious structures
FI20011069L (fi) * 2001-05-22 2002-11-23 Patenttitoimisto T Poutanen Oy Uusia vetoelimien käyttöjä puurakentamisessa
KR100471509B1 (ko) * 2001-06-11 2005-03-08 고조 힌시츠 호쇼켄큐쇼 가부시키가이샤 구축물의 보강 방법, 보강 구조체 및 고연성재
JPWO2003027416A1 (ja) * 2001-09-25 2005-01-06 構造品質保証研究所株式会社 構造物の補強構造、補強材料、免震装置および補強方法
EP1331327A1 (fr) 2002-01-29 2003-07-30 Sika Schweiz AG Dispositif de renforcement
KR20030070251A (ko) * 2002-02-23 2003-08-30 윤미숙 섬유보강 투수성 콘크리트 블록 및 그의 제조 방법
JP3903314B2 (ja) * 2002-10-25 2007-04-11 清水建設株式会社 木造長尺部材の補修補強方法
WO2006039755A1 (fr) * 2004-10-12 2006-04-20 The University Of Southern Queensland Systeme de renfort
KR100894492B1 (ko) * 2008-04-23 2009-05-07 (주)희상리인포스 아라미드 스트립 부재를 이용한 철근콘크리트 구조물의 내진보강 시공방법
IT1399040B1 (it) * 2010-01-27 2013-04-05 Fidia Srl Procedimento per il rinforzo di elementi strutturali
CN101929254B (zh) * 2010-09-01 2011-09-28 中南大学 绕杆搭接锚固纤维片材加固结构构件的方法
CN102121316B (zh) * 2011-01-12 2012-12-12 北京交通大学 预张拉高强度纤维布加固圆形结构的施工方法
US9085898B2 (en) * 2013-03-04 2015-07-21 Fyfe Co. Llc System and method of reinforcing a column positioned proximate a blocking structure
JP6220542B2 (ja) * 2013-04-15 2017-10-25 ファイベックス株式会社 引張部材の定着構造
US9574359B2 (en) * 2013-06-06 2017-02-21 Sika Technology Ag Arrangement and method for reinforcing supporting structures
ITMI20131316A1 (it) * 2013-08-02 2015-02-03 Interbau S R L Collegamento antisismico tra due elementi strutturali, particolarmente tra due elementi strutturali prefabbricati, del tipo trave-pilastro, trave-trave, trave-tegolo o simile.
CH710538B1 (de) * 2014-12-18 2018-09-28 Re Fer Ag Verfahren zum Erstellen von vorgespannten Bauwerken oder Bauteilen mittels Zugelementen aus Formgedächtnis-Legierungen sowie damit ausgerüstetes Bauwerk oder Bauteil.
DE102017126447A1 (de) * 2017-11-10 2019-05-16 CHT Germany GmbH Beschichtung von Faserprodukten mit wässrigen Polymerdispersionen
CN109457992B (zh) * 2018-10-30 2021-10-08 兰州大学 一种带锚固的体外粘贴加强混凝土结构的方法
CN110453621B (zh) * 2019-07-31 2021-06-11 湖州泰益智能科技有限公司 一种防倾倒道路隔离墩

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DE3318901A1 (de) * 1983-05-25 1984-11-29 Gustav 5140 Erkelenz Stange Verfahren zur sicheren befestigung einer auf einer aussenflaeche eines flaechigen formlings aufgebrachten auflage im bereich der flaechenraender und formwerkzeug hierzu
DE3843535A1 (de) * 1988-12-23 1990-06-28 Elastogran Kunststoff Technik Verwendung von halbzeugen aus faserverstaerktem kunststoff fuer die herstellung von formkoerpern, insbesondere stossfaengertraeger
AU3977195A (en) * 1995-01-09 1996-07-31 Eidgenossische Materialprufungs- Und Forschungsanstalt Empa Securing of reinforcing strips
DE19634840A1 (de) * 1995-08-29 1997-03-06 Erhard Vesper Verfahren und Vorrichtung zur flächenhaften Aufbringung von Dekormaterial zur Verkleidung eines Formteils

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Also Published As

Publication number Publication date
PL335439A1 (en) 2000-04-25
BR9811578A (pt) 2000-08-29
CN1127603C (zh) 2003-11-12
IL134118A (en) 2003-05-29
IL134118A0 (en) 2001-04-30
ATE208852T1 (de) 2001-11-15
NO994733D0 (no) 1999-09-29
CN1251152A (zh) 2000-04-19
DE59802160D1 (de) 2001-12-20
NO314002B1 (no) 2003-01-13
HK1024039A1 (en) 2000-09-29
JP2001512200A (ja) 2001-08-21
NO994733L (no) 1999-09-29
DE19733067A1 (de) 1999-02-04
HUP0004549A3 (en) 2002-01-28
NZ336978A (en) 2001-08-31
WO1999006651A8 (fr) 1999-08-12
HUP0004549A2 (hu) 2001-04-28
DK1000208T3 (da) 2002-02-25
CA2278650A1 (fr) 1999-02-11
KR100417892B1 (ko) 2004-02-11
HU223369B1 (hu) 2004-06-28
EP1000208B1 (fr) 2001-11-14
WO1999006651A1 (fr) 1999-02-11
PT1000208E (pt) 2002-05-31
ES2166612T3 (es) 2002-04-16
AU8975298A (en) 1999-02-22
US20020124930A1 (en) 2002-09-12
KR20000070791A (ko) 2000-11-25
CA2278650C (fr) 2003-01-21
AU738490B2 (en) 2001-09-20

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