WO1999006651A1 - Flat strip lamella for reinforcing building components and method for placing a flat strip lamella on a component - Google Patents
Flat strip lamella for reinforcing building components and method for placing a flat strip lamella on a component Download PDFInfo
- Publication number
- WO1999006651A1 WO1999006651A1 PCT/EP1998/004383 EP9804383W WO9906651A1 WO 1999006651 A1 WO1999006651 A1 WO 1999006651A1 EP 9804383 W EP9804383 W EP 9804383W WO 9906651 A1 WO9906651 A1 WO 9906651A1
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- Prior art keywords
- flat strip
- component
- strip lamella
- lamella
- adhesive
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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
-
- 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
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- 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 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.
- the surface of the flat strip lamella is freed from the binder by exposing carrier fiber surfaces, for example by roughening or sanding.
- 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.
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)
- 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)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Supports For Plants (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Package Frames And Binding Bands (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
Flachband-Lamelle zur Verstärkung von Bauteilen sowie Verfahren zur Anbringung der Flachband-Lamelle an einem BauteilRibbon slat for reinforcing components and method for attaching the ribbon slat to a component
Beschreibungdescription
Die Erfindung betrifft eine Flachband-Lamelle zur Verstärkung von lastaufnehmenden oder lastübertragenden Bauteilen, die aus einer Verbundstruktur aus einer Vielzahl von parallel zueinander ausgerichteten biegsamen oder biegeschlaffen Tragfasern und einer die Tragfasern schubfest miteinander verbindenden Bindemittelmatrix besteht und die mittels eines Klebers breitseitig an der Oberfläche des zu verstärkenden Bauteils be- festigbar ist. Die Erfindung betrifft ferner ein Verfahren zur Anbringung derartiger Flachband-Lamellen an einem Bauteil.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.
Verstärkungslamellen dieser Art sind beispielsweise be- kannt aus der WO 96/21785. Die Verstärkungslamellen werden dort an langgestreckten und/oder flächigen Bauteilen eingesetzt. Die eine Bindemittelmatrix aus einem Duroplast, insbesondere aus Epoxidharz aufweisenden Verstärkungslamellen lassen keine Biegungen mit kleinen Biegeradien zu, so daß über eine Bauteilkante hinweg geführte, bügelartige Verstärkungen hiermit nicht möglich waren. Bügeiförmige Bewehrungen werden beispielsweise benötigt, um bei Stahlbetonbalken und Stahlbetonplattenbalken den Zusammenhang zwischen der Druck- und Zugzone zu sichern und Schub- und Querrisse zu vermeiden. Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, eine Flachband-Lamelle zu entwickeln, die eine kantenübergreifende Verstärkung von Bauteilen ermög- licht. Eine weitere Aufgabe der Erfindung besteht in der Entwicklung eines Verfahrens zur Anbringung derartiger Flachband-Lamellen an Bauteilen.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.
Zur Lösung dieser Aufgabe werden die in den Patentan- Sprüchen 1 sowie 6 bis 9 angegebenen Merkmalskombinationen vorgeschlagen. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den abhängigen Ansprüchen.To achieve this object, the combinations of features specified in patent claims 1 and 6 to 9 are proposed. Advantageous refinements and developments of the invention result from the dependent claims.
Der erfindungsgemäßen Lösung liegt die Erkenntnis zugrunde, daß die Biegesteifheit der Flachband-Lamellen vor allem durch die Bindemittelmatrix verursacht wird. Um die Flachband-Lamelle auch über gebogene Bauteiloberflächen und Bauteilkanten führen zu können, wird gemäß der Erfindung vorgeschlagen, daß die Bindemittelmatrix aus einem thermoplastischen Kunststoff besteht. Durch eine lokale Temperaturerhöhung kann eine solche Flachband-Lamelle verformt und an die Oberflächenkontur des zu verstärkenden Bauteils angepaßt werden. Der Glasumwandlungspunkt des verwendeten thermoplastischen Kunststoffs sollte zweckmäßig oberhalb 100 *C liegen, während der Fließübergangsbereich oberhalb 160 'C beginnen sollte, um eine zuverlässige Handhabung zu gewährleisten. Die lokale Aufheizung der Flachbandlamelle kann vor Ort beispielsweise mit Hilfe eines Heißluftföns erfolgen. Für die Bildung der Bindemittelmatrix kommt beispielsweise ein thermoplastischer Kunststoff aus der Gruppe der Polyolefine, Vinylpolymere, Polyamide, Polyesther, Polyacetale, Polycarbonate und thermoplastische Polyurethane und Ionomere in Betracht.The solution according to the invention is based on the knowledge that the bending stiffness of the flat strip lamellae is caused primarily by the binder matrix. In order to be able to also guide the flat strip lamella over curved component surfaces and component edges, it is proposed according to the invention that the binder matrix consists of a thermoplastic. Such a flat strip lamella can be deformed by a local temperature increase and adapted to the surface contour of the component to be reinforced. The glass transition point of the thermoplastic used should suitably be above 100 * C, while the flow transition area should start above 160 'C to ensure reliable handling. The flat strip lamella can be locally heated, for example with the aid of a hot air dryer. For example, 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.
Die Tragfasern sind zweckmäßig als Kohlenstoffasern ausgebildet, die sich durch einen hohen Elastizitätsmo- dul auszeichnen. Die Tragfasern können aber auch Ara- midfasern, Glasfasern, Polypropylenfasern und dergleichen enthalten oder aus diesen bestehen.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.
Zur Anbringung der erfindungsgemäßen langgestreckten Flachband-Lamellen an einem über eine Bauteilkante hinweg zu verstärkenden Bauteil wird gemäß der Erfindung vorgeschlagen, daß die Flachband-Lamelle in ihrem über die Bauteilkante hinweg zu führenden Zwischenbereich auf eine oberhalb des Glasumwandlungspunkts des thermo- plastischen Bindemittels liegende Temperatur erhitzt, im erhitzten Zustand um einen dem Kantenwinkel des Bauteils entsprechenden Winkel gebogen und vor oder nach dem Abkühlen am Bauteil über die Bauteilkante hinweg mittels einer Kleberschicht aufgeklebt wird.To attach the elongated flat strip slats according to the invention to a component to be reinforced across a component edge, it is proposed according to the invention that 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.
Die erfindungsgemäße Verwendung einer thermoplastischen Bindemittelmatrix erlaubt es, die Flachband-Lamellen im vorgespannten Zustand auf eine Bauteiloberfläche aufzubringen. Die Flachband-Lamellen lassen sich mit ihren über die zu verstärkende Bauteiloberfläche überstehenden freien Enden in erhitztem Zustand auf je ein Spann- element aufziehen oder aufbiegen und daran fixieren. Die Spannelemente können dann gegeneinander verspannt werden, so daß die Flachband-Lamelle in vorgespanntem Zustand auf die Bauteiloberfläche aufgeklebt werden kann. Zum Verspannen der Spannelemente kann ein im Abstand von der zu verstärkenden Bauteiloberfläche angeordneter Spannmechanismus vorgesehen werden. Der Spannmechanismus kann auch nur an einem Ende der Flachband- Lamelle angreifen, wenn das andere Ende durch ein ge- eignetes Spannelement an der Bauteiloberfläche fixiert wird.The use of a thermoplastic binder matrix according to the invention makes it possible to apply the flat strip lamellae to a component surface in the prestressed state. 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.
Weiter besteht mit der erfindungsgemäßen thermoplastischen Bindemittelmatrix die Möglichkeit, die freien En- den der Flachband-Lamelle unter der Einwirkung vonWith the thermoplastic binder matrix according to the invention, there is also the possibility of the free ends of the flat strip lamella being influenced by
Druck und Wärme in eine Wellen- oder Zick-Zack-Form zu pressen. Zur formschlüssigen Verankerung werden die auf diese Weise verformten Lamellenenden in eine mit einem Kleber ausgefüllte Bauteilausnehmung eingeführt, so daß sich die Zick-Zack-Bereiche mit dem pastosen Kleber ausfüllen und nach dem Erhärten des Klebers mit diesem eine formschlüssige Verbindung bilden.Pressing pressure and heat into a wave or zigzag shape. For positive anchoring, the slat ends deformed in this way are inserted into a component recess filled with an adhesive, so that the zigzag areas fill with the pasty adhesive and form a positive connection with the adhesive after it has hardened.
Die Flachband-Lamelle mit der erfindungsgemäßen ther- moplastischen Bindemittelmatrix läßt sich ferner zur Verstärkung säulenförmiger Bauteile einsetzen. Dazu wird die auf eine Temperatur oberhalb des Glasübergangsbereichs der Bindemittelmatrix erhitzte Flachband- Lamelle auf die mit einem flüssigen Reaktionskleber be- schichtete Oberfläche des säulenförmigen Bauteils spiralig aufgewickelt und im aufgewickelten Zustand bei gleichzeitigem Aushärten des Klebers auf Gebrauchstemperatur abgekühlt. Um Flüssigkeitsansammlungen unter der Flachbandwicklung zu vermeiden, ist es von Vorteil, wenn zwischen zwei Spiralwindungen der Flachband-Lame1- le ein Abstand eingehalten wird.The flat strip lamella with the thermoplastic binder matrix according to the invention can also be used to reinforce columnar components. For this purpose, 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. In order to avoid fluid accumulation under the flat ribbon winding, it is advantageous if a distance is maintained between two spiral turns of the flat ribbon laminate.
Um die Haftwirkung zwischen der Flachband-Lamelle und dem beispielsweise aus Epoxidharz bestehenden Kleber zu verbessern, kann es von Vorteil sein, wenn die Flach- band-Lamelle an ihrer kleberseitigen Oberfläche von dem Bindemittel unter Freilegung von Tragfaseroberflächen beispielsweise durch Aufrauhen oder Anschleifen befreit wird.In order to improve the adhesive effect between the flat strip lamella and the adhesive consisting, for example, of epoxy resin, it can be advantageous if the surface of the flat strip lamella is freed from the binder by exposing carrier fiber surfaces, for example by roughening or sanding.
Im folgenden wird die Erfindung anhand der in derThe invention is based on the in the
Zeichnung in schematischer Weise dargestellten Ausführungsbeispiele näher erläutert. Es zeigenDrawing illustrated in a schematic manner embodiments illustrated. Show it
Fig. la eine Draufsicht auf einen Ausschnitt aus einer Verstärkungslamelle;Figure la is a plan view of a section of a reinforcing lamella.
Fig. lb einen Schnitt entlang der Schnittlinie B-B der Fig. la in vergrößerter Darstellung;Fig. Lb shows a section along the section line B-B of Fig la in an enlarged view.
Fig. 2 einen Schnitt durch einen Stahlbeton-Plattenbalken mit bügeiförmig gebogener Verstärkungslamelle;Figure 2 shows a section through a reinforced concrete slab with a bow-shaped bent reinforcing lamella.
Fig. 3 das eine Ende der Verstärkungslamelle, das in die Bauteilausnehmung gemäß Ausschnitt III derFig. 3 shows one end of the reinforcing lamella, which in the component recess according to section III of the
Fig. 2 einführbar ist; Fig. 4 eine Spannvorrichtung zur vorgespannten Anbringung der Verstärkungslamelle an einem Bauteil;Fig. 2 is insertable; 4 shows a tensioning device for the prestressed attachment of the reinforcing lamella to a component;
Fig. 5 eine ausschnittsweise Seitenansicht eines mit einer Verstärkungslamelle spiralig umwickelten säulenförmigen Bauteils.Fig. 5 is a partial side view of a columnar component spirally wrapped with a reinforcing lamella.
Die in der Zeichnung dargestellten Flachband-Lamellen 10 sind zur nachträglichen Verstärkung von Bauteilen 12, wie Stahlbetonkonstruktionen und Mauerwerk bestimmt. Sie sind mit ihrer einen Breitseite 14 mit Hilfe eines vorzugsweise aus Epoxidharz bestehenden Klebers 16 an der Oberfläche des Bauteils befestigt und zusätzlich mit ihren freien Enden 32,34 am Bauteil 12 verankert (Fig. 2).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).
Das Bauteil 12 nach Fig. 2 ist beispielhaft als Plattenbalken aus Stahlbeton ausgebildet, bei welchem die Lamelle 10 sich bügelartig über den Steg 22 des Bauteils 12 erstreckt und dabei über die Eckkanten 24 des Stegs 22 gebogen ist.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.
Die Flachband-Lamelle 10 weist eine Verbundstruktur aus einer Vielzahl von parallel zueinander ausgerichteten biegsamen oder biegeschlaffen Tragfasern 26 aus Kohlenstoff und aus einer die Tragfasern schubfest miteinander verbindenden Bindemittelmatrix 28 aus einem thermoplastischen Kunststoff auf. Die thermoplastische Binde- mittelmatrix 28 sorgt dafür, daß die Flachband-Lamelle bei Gebrauchstemperatur relativ steif ist und durch Aufheizen auf eine Temperatur oberhalb des Glasumwandlungspunktes plastisch verformbar ist. Um die zunächst langgestreckte Flachband-Lamelle 10 über die Ecken 24 zu führen, werden sie an dem Zwischenbereich 30 auf eine Temperatur oberhalb des Glasumwandlungspunkts der thermoplastischen Bindemittelmatrix erhitzt und dem ggf. abgerundeten Eckwinkel entsprechend um 90° plastisch gebogen. Diese Biegung bleibt nach dem Abkühlen auf Gebrauchstemperatur erhalten.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. In order to guide the initially elongated flat strip lamella 10 over the corners 24, 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.
Bei dem in Fig. 2 gezeigten Ausführungsbeispiel wird auch bei der Verankerung des einen Endes 32 der Flachband-Lamelle von der plastischen Verformbarkeit unter Temperaturerhöhung Gebrauch gemacht . Das abgebogene En- de 32 ist mit dem Kleber 16 am Bauteil 12 angeklebt. An ihrem anderen freien Ende 34 weist die Flachband-Lamelle eine zick-zack-förmige Verformung auf, die unter Einwirkung von Druck und Wärme erzeugt worden ist. Mit diesem Ende 34 taucht die Flachband-Lamelle 10 in eine mit Kleber ausgefüllte Ausnehmung 35 des Bauteils 10 ein und bildet beim Aushärten des Klebers in dieser Ausnehmung eine formschlüssige Verankerung.In the embodiment shown in FIG. 2, use is also made of the plastic deformability with an increase in temperature when anchoring one end 32 of the flat strip lamella. The bent end 32 is glued to the component 12 with the adhesive 16. At its other free end 34, the flat strip lamella has a zigzag-shaped deformation which has been generated under the action of pressure and heat. With this end 34, the flat strip lamella 10 dips into a recess 35 of the component 10 filled with adhesive and forms a form-fitting anchorage in this recess when the adhesive cures.
Bei dem in Fig. 4 gezeigten Ausführungsbeispiel werden die freien Enden 36 der Flachband-Lamelle 10 in erhitztem, plastisch verformbarem Zustand auf trommeiförmige Spannelemente 38 aufgezogen und dort verankert. Die Spannelemente 38 können unter der Einwirkung eines geeigneten Spannmechanismus in Richtung des Doppelpfeils 39 gegeneinander verschoben werden, so daß die Flachband-Lamelle 10 beim Aufkleben auf das Bauteils 12 mit Hilfe des Klebers 16 vorgespannt ist. Wird die Vorspannung bis zum Aushärten des Klebers aufrechterhalten, erhält man eine Verbesserung der Verstärkungswirkung.In the exemplary embodiment shown in FIG. 4, 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.
Bei dem in Fig. 5 gezeigten Ausführungsbeispiel ist eine Flachbandlamelle 10 spiralig auf ein säulenförmiges Bauteil 12 aufgewickelt und an diesem angeklebt. Um das Aufwickeln zu erleichtern, wird die Flachband-Lamelle auf eine erhöhte Temperatur gebracht, so daß sie beim Aufwickeln leicht in ihre spiralige Form gebracht werden kann .In the exemplary embodiment shown in FIG. 5, a flat strip lamella 10 is wound spirally onto a columnar component 12 and glued to it. In order to facilitate winding, the flat strip lamella is brought to an elevated temperature so that it can easily be brought into its spiral shape during winding.
Zusammenfassend ist folgendes festzustellen: Die Erfindung bezieht sich auf eine Flachband-Lamelle 10 zur Verstärkung von lastaufnehmenden oder lastübertragenden Bauteilen 12, beispielsweise aus Beton, Holz, Stahl, Naturstein oder Mauerwerk. Die Flachband-Lamelle 10 weist eine Verbundstruktur aus einer Vielzahl von parallel ausgerichteten, biegsamen oder biegeschlaffen Tragfasern 26 und einer die Tragfasern schubfest miteinander verbindenden Bindemittelmatrix 28 auf. Sie ist mittels eines Klebers 16 breitseitig an der Oberfläche des zu verstärkenden Bauteils befestigbar. Um die Flachband-Lamelle auch über Eckkanten eines Bauteils biegen zu können, wird gemäß der Erfindung vorgeschlagen, daß die Bindemittelmatrix 28 aus einem thermoplastischen Kunststoff besteht. In summary, the following can be stated: 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. In order to be able to bend the flat strip lamella also over corner edges of a component, it is proposed according to the invention that the binder matrix 28 consists of a thermoplastic.
Claims
Priority Applications (15)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE59802160T DE59802160D1 (en) | 1997-07-31 | 1998-07-15 | FLAT-TAPE LAMPS FOR REINFORCING COMPONENTS AND METHOD FOR ATTACHING THE FLAT-TAPE LAMPS TO A COMPONENT |
| DK98941330T DK1000208T3 (en) | 1997-07-31 | 1998-07-15 | Flat strip slat for reinforcing building parts and method of applying the flat strip slat to a building part |
| BR9811578-2A BR9811578A (en) | 1997-07-31 | 1998-07-15 | Flat ribbon blade for reinforcing construction parts, as well as process for applying flat ribbon blade to a construction piece |
| AU89752/98A AU738490B2 (en) | 1997-07-31 | 1998-07-15 | Flat strip lamella for reinforcing building components and method for placing a flat strip lamella on a component |
| KR10-1999-7007053A KR100417892B1 (en) | 1997-07-31 | 1998-07-15 | Flat strip lamella for reinforcing building components and method for placing a flat strip lamella on a component |
| CA002278650A CA2278650C (en) | 1997-07-31 | 1998-07-15 | Flat strip lamella for reinforcing building components and method for placing a flat strip lamella on a component |
| NZ336978A NZ336978A (en) | 1997-07-31 | 1998-07-15 | Flat strip lamella, for reinforcing building components, comprising a composite structure of a plurality of parallel-aligned bendable or flexible fibres and a thermoplastic resin binding matrix which joins the reinforcing fibres in a shear-resistant manner |
| AT98941330T ATE208852T1 (en) | 1997-07-31 | 1998-07-15 | FLAT TAPE LAMINA FOR REINFORCEMENT OF COMPONENTS AND METHOD FOR ATTACHING THE FLAT TAPE LAMINATE TO A COMPONENT |
| PL98335439A PL335439A1 (en) | 1997-07-31 | 1998-07-15 | Belt in the form of flat ribbon for reinforcing building units and method of securing such belt to a building unit |
| JP2000505383A JP2001512200A (en) | 1997-07-31 | 1998-07-15 | Flat strip for reinforcing structural members and method of attaching the flat strip to structural members |
| IL13411898A IL134118A (en) | 1997-07-31 | 1998-07-15 | Flat strip lamella from reinforcing building components and method for placing a flat strip lamella on a component |
| EP98941330A EP1000208B1 (en) | 1997-07-31 | 1998-07-15 | Flat strip lamella for reinforcing building components and method for placing a flat strip lamella on a component |
| HK00103203.7A HK1024039B (en) | 1997-07-31 | 1998-07-15 | Flat strip lamella for reinforcing building components and method for placing a flat strip lamella on a component |
| HU0004549A HU223369B1 (en) | 1997-07-31 | 1998-07-15 | Flat strip lamella for reinforcing building components and method for placing a flat strip lamella on a component |
| NO19994733A NO314002B1 (en) | 1997-07-31 | 1999-09-29 | Flat ribbon lamella for reinforcing building components and method of applying the flat ribbon lamella to a building component |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19733067.3 | 1997-07-31 | ||
| DE19733067A DE19733067A1 (en) | 1997-07-31 | 1997-07-31 | Ribbon slat for reinforcing components and method for attaching the ribbon slat to a component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1999006651A1 true WO1999006651A1 (en) | 1999-02-11 |
| WO1999006651A8 WO1999006651A8 (en) | 1999-08-12 |
Family
ID=7837538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1998/004383 Ceased WO1999006651A1 (en) | 1997-07-31 | 1998-07-15 | Flat strip lamella for reinforcing building components and method for placing a flat strip lamella on a component |
Country Status (19)
| Country | Link |
|---|---|
| US (1) | US20020124930A1 (en) |
| EP (1) | EP1000208B1 (en) |
| JP (1) | JP2001512200A (en) |
| KR (1) | KR100417892B1 (en) |
| CN (1) | CN1127603C (en) |
| AT (1) | ATE208852T1 (en) |
| AU (1) | AU738490B2 (en) |
| BR (1) | BR9811578A (en) |
| CA (1) | CA2278650C (en) |
| DE (2) | DE19733067A1 (en) |
| DK (1) | DK1000208T3 (en) |
| ES (1) | ES2166612T3 (en) |
| HU (1) | HU223369B1 (en) |
| IL (1) | IL134118A (en) |
| NO (1) | NO314002B1 (en) |
| NZ (1) | NZ336978A (en) |
| PL (1) | PL335439A1 (en) |
| PT (1) | PT1000208E (en) |
| WO (1) | WO1999006651A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002095159A1 (en) * | 2001-05-22 | 2002-11-28 | Patenttitoimisto T. Poutanen Oy | Wood element and a method for the production of and the use of such a wood element |
| EP1331327A1 (en) | 2002-01-29 | 2003-07-30 | Sika Schweiz AG | Reinforcing device |
| EP1437459A4 (en) * | 2001-09-25 | 2005-07-06 | Structural Quality Assurance I | Reinforcement material and reinforcement structure of structure and method of designing reinforcement material |
| WO2006039755A1 (en) * | 2004-10-12 | 2006-04-20 | The University Of Southern Queensland | A strengthening system |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2001227722A1 (en) * | 2000-01-13 | 2001-07-24 | Dow Global Technologies Inc. | Composites of reinforcing fibers and thermoplastic resins as external structuralsupports |
| DE10032595A1 (en) * | 2000-07-07 | 2002-01-17 | Josef Scherer | Reinforcement for building surfaces |
| US20020170651A1 (en) * | 2001-05-15 | 2002-11-21 | Edwards Christopher M. | Method for reinforcing cementitious structures |
| KR100471509B1 (en) * | 2001-06-11 | 2005-03-08 | 고조 힌시츠 호쇼켄큐쇼 가부시키가이샤 | Method, material and construction for reinforcing a structure |
| KR20030070251A (en) * | 2002-02-23 | 2003-08-30 | 윤미숙 | Fiber reinforced permeating concrete block and method for manufacturing same |
| JP3903314B2 (en) * | 2002-10-25 | 2007-04-11 | 清水建設株式会社 | Repair and reinforcement method for long wooden members |
| KR100894492B1 (en) * | 2008-04-23 | 2009-05-07 | (주)희상리인포스 | Seismic Retrofit of Reinforced Concrete Structures Using Aramid Strip Members |
| IT1399040B1 (en) * | 2010-01-27 | 2013-04-05 | Fidia Srl | PROCEDURE FOR THE REINFORCEMENT OF STRUCTURAL ELEMENTS |
| CN101929254B (en) * | 2010-09-01 | 2011-09-28 | 中南大学 | Method for lapping and anchoring fiber sheet around rod to reinforce structural component |
| CN102121316B (en) * | 2011-01-12 | 2012-12-12 | 北京交通大学 | Construction method for reinforcing circular structures by pre-tensioned high-strength fiber cloth |
| WO2014138092A1 (en) * | 2013-03-04 | 2014-09-12 | Fyfe Co. Llc | Method of reinforcing a column positioned proximate a blocking structure |
| JP6220542B2 (en) * | 2013-04-15 | 2017-10-25 | ファイベックス株式会社 | Fixing structure of tension member |
| WO2014195504A1 (en) * | 2013-06-06 | 2014-12-11 | Sika Technology Ag | Arrangement and method for reinforcing supporting structures |
| ITMI20131316A1 (en) * | 2013-08-02 | 2015-02-03 | Interbau S R L | ANTI-SEISMIC CONNECTION BETWEEN TWO STRUCTURAL ELEMENTS, PARTICULARLY BETWEEN TWO PREFABRICATED STRUCTURAL ELEMENTS, OF THE BEAM-PILLAR TYPE, BEAM-BEAM, BEAM-TILE OR LIKE. |
| CH710538B1 (en) * | 2014-12-18 | 2018-09-28 | Re Fer Ag | Method for creating prestressed structures or components by means of tension elements made of shape memory alloys and building or component equipped therewith. |
| DE102017126447A1 (en) * | 2017-11-10 | 2019-05-16 | CHT Germany GmbH | Coating of fiber products with aqueous polymer dispersions |
| CN109457992B (en) * | 2018-10-30 | 2021-10-08 | 兰州大学 | A method for externally pasting and strengthening concrete structures with anchoring |
| CN110453621B (en) * | 2019-07-31 | 2021-06-11 | 湖州泰益智能科技有限公司 | Prevent empting road hard shoulder |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996021785A1 (en) | 1995-01-09 | 1996-07-18 | Eidgenössische Materialprüfungs- und Forschungsanstalt Empa | Securing of reinforcing strips |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3318901A1 (en) * | 1983-05-25 | 1984-11-29 | Gustav 5140 Erkelenz Stange | Process for reliable fastening of a support attached to an exterior surface of a flat moulding in the region of the surface edges and mould for this |
| DE3843535A1 (en) * | 1988-12-23 | 1990-06-28 | Elastogran Kunststoff Technik | Use of semifinished products of fibre-reinforced plastic for the production of mouldings, in particular bumper brackets |
| DE19634840A1 (en) * | 1995-08-29 | 1997-03-06 | Erhard Vesper | Mfr. of shaped decorative parts for car interiors etc. reducing waste |
-
1997
- 1997-07-31 DE DE19733067A patent/DE19733067A1/en not_active Withdrawn
-
1998
- 1998-07-15 DK DK98941330T patent/DK1000208T3/en active
- 1998-07-15 WO PCT/EP1998/004383 patent/WO1999006651A1/en not_active Ceased
- 1998-07-15 AU AU89752/98A patent/AU738490B2/en not_active Expired
- 1998-07-15 HU HU0004549A patent/HU223369B1/en not_active IP Right Cessation
- 1998-07-15 KR KR10-1999-7007053A patent/KR100417892B1/en not_active Expired - Fee Related
- 1998-07-15 ES ES98941330T patent/ES2166612T3/en not_active Expired - Lifetime
- 1998-07-15 CA CA002278650A patent/CA2278650C/en not_active Expired - Lifetime
- 1998-07-15 PL PL98335439A patent/PL335439A1/en not_active Application Discontinuation
- 1998-07-15 JP JP2000505383A patent/JP2001512200A/en active Pending
- 1998-07-15 DE DE59802160T patent/DE59802160D1/en not_active Expired - Fee Related
- 1998-07-15 AT AT98941330T patent/ATE208852T1/en active
- 1998-07-15 NZ NZ336978A patent/NZ336978A/en unknown
- 1998-07-15 CN CN98803602A patent/CN1127603C/en not_active Expired - Lifetime
- 1998-07-15 EP EP98941330A patent/EP1000208B1/en not_active Expired - Lifetime
- 1998-07-15 BR BR9811578-2A patent/BR9811578A/en not_active IP Right Cessation
- 1998-07-15 IL IL13411898A patent/IL134118A/en not_active IP Right Cessation
- 1998-07-15 US US09/341,747 patent/US20020124930A1/en not_active Abandoned
- 1998-07-15 PT PT98941330T patent/PT1000208E/en unknown
-
1999
- 1999-09-29 NO NO19994733A patent/NO314002B1/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996021785A1 (en) | 1995-01-09 | 1996-07-18 | Eidgenössische Materialprüfungs- und Forschungsanstalt Empa | Securing of reinforcing strips |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002095159A1 (en) * | 2001-05-22 | 2002-11-28 | Patenttitoimisto T. Poutanen Oy | Wood element and a method for the production of and the use of such a wood element |
| EP1437459A4 (en) * | 2001-09-25 | 2005-07-06 | Structural Quality Assurance I | Reinforcement material and reinforcement structure of structure and method of designing reinforcement material |
| EP1331327A1 (en) | 2002-01-29 | 2003-07-30 | Sika Schweiz AG | Reinforcing device |
| WO2006039755A1 (en) * | 2004-10-12 | 2006-04-20 | The University Of Southern Queensland | A strengthening system |
Also Published As
| Publication number | Publication date |
|---|---|
| BR9811578A (en) | 2000-08-29 |
| EP1000208B1 (en) | 2001-11-14 |
| PT1000208E (en) | 2002-05-31 |
| AU738490B2 (en) | 2001-09-20 |
| IL134118A0 (en) | 2001-04-30 |
| CA2278650C (en) | 2003-01-21 |
| PL335439A1 (en) | 2000-04-25 |
| EP1000208A1 (en) | 2000-05-17 |
| HK1024039A1 (en) | 2000-09-29 |
| NO314002B1 (en) | 2003-01-13 |
| HUP0004549A2 (en) | 2001-04-28 |
| CN1251152A (en) | 2000-04-19 |
| NO994733L (en) | 1999-09-29 |
| DE59802160D1 (en) | 2001-12-20 |
| WO1999006651A8 (en) | 1999-08-12 |
| HUP0004549A3 (en) | 2002-01-28 |
| DE19733067A1 (en) | 1999-02-04 |
| HU223369B1 (en) | 2004-06-28 |
| AU8975298A (en) | 1999-02-22 |
| KR100417892B1 (en) | 2004-02-11 |
| CN1127603C (en) | 2003-11-12 |
| NZ336978A (en) | 2001-08-31 |
| NO994733D0 (en) | 1999-09-29 |
| JP2001512200A (en) | 2001-08-21 |
| US20020124930A1 (en) | 2002-09-12 |
| CA2278650A1 (en) | 1999-02-11 |
| DK1000208T3 (en) | 2002-02-25 |
| ES2166612T3 (en) | 2002-04-16 |
| ATE208852T1 (en) | 2001-11-15 |
| IL134118A (en) | 2003-05-29 |
| KR20000070791A (en) | 2000-11-25 |
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