EP1507048A1 - Method for tensioning a composite material - Google Patents

Method for tensioning a composite material Download PDF

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Publication number
EP1507048A1
EP1507048A1 EP03018427A EP03018427A EP1507048A1 EP 1507048 A1 EP1507048 A1 EP 1507048A1 EP 03018427 A EP03018427 A EP 03018427A EP 03018427 A EP03018427 A EP 03018427A EP 1507048 A1 EP1507048 A1 EP 1507048A1
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EP
European Patent Office
Prior art keywords
composite material
clamping
tensioning
force introduction
introduction element
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Withdrawn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
EP03018427A
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German (de)
French (fr)
Inventor
Gregor Schwegler
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 EP03018427A priority Critical patent/EP1507048A1/en
Publication of EP1507048A1 publication Critical patent/EP1507048A1/en
Withdrawn legal-status Critical Current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
    • E04C5/085—Tensile members made of fiber reinforced plastics
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
    • 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
    • E04G2023/0255—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements whereby the fiber reinforced plastic elements are stressed
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
    • E04G2023/0255—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements whereby the fiber reinforced plastic elements are stressed
    • E04G2023/0259—Devices specifically adapted to stress the fiber reinforced plastic elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
    • E04G2023/0262—Devices specifically adapted for anchoring the fiber reinforced plastic elements, e.g. to avoid peeling off

Definitions

  • the invention is based on a method for clamping a composite material, which is anchored to a support structure.
  • the advantages of the invention include that no additional temporary Anchoring is needed because the forces already during the clamping process into the permanent anchorage, i. a Schubdorn be initiated. Further, there is no force transfer from a temporary to a permanent one Anchoring instead of the state of the art. Likewise, no tension elements, In particular threaded rods, used and thus can reduce the risk of Corrosion, in particular of stress corrosion cracking, excluded from de-icing become. The clamping process is simplified, and so is a much more economical Method provided.
  • Another advantage is that the composite material in the area of the clamping anchorage is no longer deflected, but after clamping the composite material the force introduction element in the end position behind the thrust pin lowered and hooked in the thrust mandrel.
  • FIGS. 1, 1a and 1b a tensioning method according to the invention is shown during the tensioning process.
  • a support structure 3 is a permanent Anchoring, here a thrust pin 4, arranged.
  • a temporarily inserted clamping device 6 for the clamping process arranged.
  • the thrust mandrel 4, which in a borehole in the support structure. 3 is fixed, is preferably made of metal or plastic and is e.g. as a bolt or a thick-walled pipe is designed and is in the support structure 3, for. thick-walled tube designed and is in the support structure 3, for. screwed, embedded in concrete or glued.
  • the tensioning device 6 comprises a clamp 11 molded holding device, a clamping press 9 and a plate 10 as formed Fastening device.
  • the tensioning device 6 is by means of the clamp 11 held on the thrust pin 4.
  • the force introduction element 1 comprises a transverse cross member 2 and a holder 13 comprising either at least one pressure plate, preferably two pressure plates or a clamping wedge or another Method for holding a composite material 5.
  • the transverse cross member 2 is arranged at any point of the force introduction element 1, which cooperates via the holder 13 with the band-shaped composite material 5.
  • the transverse cross member 2 and the plate 10 and the clamp 11 of the clamping device 6 are preferably made of metal with the required for the clamping operation Strength and dimension.
  • the clamping press 9 of the tensioning device 6 presses to tension the composite material 5 in the pulling direction 8 on the plate 10, the temporary for the clamping operation with the force introduction element 1, preferably with the cross-traverse 2, is connected.
  • the composite material 5 is tensioned, with the other end of the composite material also attached to the support structure or otherwise held is.
  • the composite material 5 may be configured in the form of a lamella, the made of fibers and a synthetic resin.
  • the fibers can be in one direction i.e. be formed unidirectionally or additionally fibers in other directions, in particular an angle plus 45 ° and minus 45 ° to the unidirectional main fiber direction be constructed.
  • the fibers may preferably be aramid, carbon, Glass etc., which are embedded in a synthetic resin.
  • the resin is either a duromer, such as e.g. Epoxy, acrylates or a thermoplastic material, such as. Polyamide, epoxy, acrylates or combinations thereof.
  • the surface of the composite 5 must be specially embossed, e.g. by grinding roughened or pretreated with an adhesive or with a pretreatment system treated.
  • the device is performed after the Tensioning of the composite material 5, a lowering and hooking the Anchoring behind the shear pin 4 shown.
  • the force introduction element 1, comprising the cross-beam 2 is by means of the press 12 in the direction of the support structure 3 pressed behind the thrust mandrel 4, wherein the head of the thrust mandrel 4 the Lowering of the composite material 5 through a recess in the support structure. 3 is possible.
  • the fitting part 7 can consist of several pieces and fits as accurately as possible in the space between the thrust pin 4 and the circular, kallotenförmig transverse crossbar 2.
  • the circular cross-Traverse 2 prevents tilting of the composite 5. Such tilting could lead to failure lead by cracking of the composite material 5.
  • the invention is not limited to the one shown and described Embodiment limited.
  • the force introduction element can be executed arbitrarily.

Abstract

The method involves fixing a permanent anchor (4) on the support structure (3) and attaching a tensioning device (6) to the anchor. The compound material is then tensioned by the tensioning device which interacts with the compound material through the power flow element (1) which is lowered and hung in the permanent anchor. The tensioning device is then removed from the permanent anchor. The tensioning device has a holder (11), a tension press (9) and a fixing device (10).

Description

Technisches GebietTechnical area

Die Erfindung geht aus von einem Verfahren zum Spannen eines Verbundwerkstoffes, welcher an einer Tragstruktur verankert wird.The invention is based on a method for clamping a composite material, which is anchored to a support structure.

Stand der TechnikState of the art

Zum nachträglichen Verstärken von Tragstrukturen werden seit einigen Jahren nebst Stahllamellen auch Lamellen aus Verbundwerkstoffen eingesetzt. Diese Verbundwerkstoffe werden entweder schlaff ohne Längsspannung oder über Endverankerungen vorgespannt mit der Tragstruktur verklebt. Derartige Endverankerungen sind bekannt und verschiedene Befestigungsmethoden zur Kraftübertragung von einem Krafteinleitungselement zum Verbundwerkstoff sind bereits im Markt eingeführt. Die heutigen Spannverfahren erfolgen dadurch, dass bei der permanenten Verankerung die Krafteinleitung über Zugelemente, insbesondere Gewindestangen, aufgenommen wird. Es hat sich gezeigt, dass die Zugelemente bezüglich Korrosions-, insbesondere Spannungsrisskorrosion unter Tausalzeinwirkung problematisch sein können. For the subsequent reinforcing of supporting structures are for some In addition to steel lamellas, laminates made of composite materials have also been used for years. These composites are either limp without longitudinal tension or Bonded via end anchors glued to the support structure. Such end anchors are known and various attachment methods for power transmission from a force introduction element to the composite material are already introduced in the market. Today's tensioning method is done by that at the permanent anchoring the introduction of force via tension elements, in particular Threaded rods, is added. It has been shown that the tension elements with regard to corrosion, in particular stress corrosion cracking with salt decomposition can be problematic.

Darstellung der ErfindungPresentation of the invention

Es ist daher Aufgabe der vorliegenden Erfindung, die Nachteile des bestehenden Standes der Technik zu überwinden und ein Spannverfahren ohne eine temporäre Verankerung und ohne Zugelemente zu realisieren.It is therefore an object of the present invention, the disadvantages of the existing Prior art overcome and a tensioning without a temporary anchoring and without pulling elements to realize.

Diese Aufgabe wird mit Hilfe eines erfindungsgemässen Spannverfahrens gemäss Anspruch 1 gelöst.This object is achieved by means of a tensioning method according to the invention solved according to claim 1.

Dabei wird mit einer Spannvorrichtung, die an einer permanenten Verankerung temporär fixiert ist, ein bandförmiger Verbundwerkstoff gespannt, und in einem zweiten Schritt nach dem Spannvorgang wird der Verbundwerkstoff mittels eines Krafteinleitungselementes an der permanenten Verankerung befestigt und die Spannvorrichtung danach entfernt.This is done with a tensioning device attached to a permanent anchorage is temporarily fixed, a band-shaped composite material stretched, and in one second step after the clamping process, the composite material is a force introduction element attached to the permanent anchorage and then remove the tensioning device.

Die Vorteile der Erfindung sind unter anderem, dass keine zusätzliche temporäre Verankerung benötigt wird, da die Kräfte bereits während dem Spannprozess in die permanente Verankerung, d.h. einen Schubdorn eingeleitet werden. Weiter findet keine Kraftumlagerung von einer temporären auf eine permanente Verankerung statt wie beim Stand der Technik. Ebenfalls werden keine Zugelemente, insbesondere Gewindestangen, verwendet und somit kann die Gefahr von Korrosion, insbesondere von Spannungsrisskorrosion, unter Tausalzwirkung ausgeschlossen werden. Der Spannvorgang ist vereinfacht, und so wird ein viel wirtschaftlicheres Verfahren bereitgestellt.The advantages of the invention include that no additional temporary Anchoring is needed because the forces already during the clamping process into the permanent anchorage, i. a Schubdorn be initiated. Further, there is no force transfer from a temporary to a permanent one Anchoring instead of the state of the art. Likewise, no tension elements, In particular threaded rods, used and thus can reduce the risk of Corrosion, in particular of stress corrosion cracking, excluded from de-icing become. The clamping process is simplified, and so is a much more economical Method provided.

Ein weiterer Vorteil ist, dass der Verbundwerkstoff im Bereich der Spannverankerung nicht mehr umgelenkt wird, sondern nach dem Spannen des Verbundwerkstoffs das Krafteinleitungselement in die Endlage hinter dem Schubdorn abgesenkt und im Schubdorn eingehängt wird.Another advantage is that the composite material in the area of the clamping anchorage is no longer deflected, but after clamping the composite material the force introduction element in the end position behind the thrust pin lowered and hooked in the thrust mandrel.

Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen. Further advantageous embodiments of the invention will become apparent from the Dependent claims.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Im folgenden werden anhand der Zeichnungen Ausführungsbeispiele der Erfindung näher erläutert. Gleiche Elemente sind in den verschiedenen Figuren mit den gleichen Bezugszeichen versehen.In the following, with reference to the drawings, embodiments of Invention explained in more detail. Same elements are in the different figures provided with the same reference numerals.

Es zeigen:

Fig. 1
Schematische Seitenansicht während des Spannvorgangs eines Verbundwerkstoffs mit einer Spannvorrichtung an einem Schubdorn;
Fig. 1a
Schematische Draufsicht des Spannvorgangs mit der Spannvorrichtung nach Fig. 1;
Fig. 1b
Schematische Draufsicht des Spannvorgangs mit der Spannvorrichtung nach Fig. 1, dargestellt ohne Platte 10 zu besseren Sichtbarkeit der Quer-Traverse;
Fig. 2
Schematische Seitenansicht nach dem Spannvorgang des Verbundwerkstoffs mit Spannvorrichtung;
Fig. 2a
Schematische Seitenansicht nach dem Spannvorgang, dem Absenken und Einhängen des Verbundwerkstoffs in den Schubdorn;
Fig. 2b
Schematische Draufsicht nach dem Spannvorgang, dem Absenken und Einhängen des Verbundwerkstoffs in den Schubdorn entsprechend Fig. 2a.
Show it:
Fig. 1
Schematic side view during the clamping process of a composite material with a clamping device on a thrust pin;
Fig. 1a
Schematic plan view of the clamping operation with the clamping device of FIG. 1;
Fig. 1b
Schematic plan view of the clamping operation with the clamping device of Figure 1, shown without plate 10 to better visibility of the cross-Traverse.
Fig. 2
Schematic side view after the clamping process of the composite material with clamping device;
Fig. 2a
Schematic side view after the clamping process, the lowering and hanging of the composite material in the thrust pin;
Fig. 2b
Schematic plan view after the clamping process, the lowering and hanging of the composite material in the thrust mandrel according to Fig. 2a.

Weg zur Ausführung der ErfindungWay to carry out the invention

In den Figuren 1, 1a und 1b wird ein erfindungsgemässes Spannverfahren während des Spannvorgangs dargestellt. In einer Tragstruktur 3 ist eine permanente Verankerung, hier ein Schubdorn 4, angeordnet. Am Kopf des Schubdorns 4 ist für den Spannprozess eine temporär eingesetzte Spannvorrichtung 6 angeordnet. Der Schubdorn 4, der in einem Bohrloch in der Tragstruktur 3 befestigt ist, ist vorzugsweise aus Metall oder Kunststoff und ist z.B. als ein Bolzen oder ein dickwandiges Rohr ausgestaltet und wird in die Tragstruktur 3 z.B. dickwandiges Rohr ausgestaltet und wird in die Tragstruktur 3 z.B. eingeschraubt, einbetoniert oder verklebt. Die Spannvorrichtung 6 umfasst eine als Klammer 11 ausgeformte Haltevorrichtung, eine Spannpresse 9 und eine als Platte 10 ausgeformte Befestigungsvorrichtung. Die Spannvorrichtung 6 ist mittels der Klammer 11 am Schubdorn 4 gehalten. Das Krafteinleitungselement 1 umfasst eine Quer-Traverse 2 und eine Halterung 13 umfassend entweder mindestens eine Anpressplatte, vorzugsweise zwei Anpressplatten oder ein Klemmkeil oder ein anderes Verfahren zur Halterung eines Verbundwerkstoffs 5. Die Quer-Traverse 2 ist an einer beliebigen Stelle des Krafteinleitungselements 1 angeordnet, welches über die Halterung 13 mit dem bandförmigen Verbundwerkstoff 5 zusammenwirkt. Die Quer-Traverse 2 und die Platte 10 sowie die Klammer 11 der Spannvorrichtung 6 sind vorzugsweise aus Metall mit der für den Spannvorgang geforderten Festigkeit und Dimension.In FIGS. 1, 1a and 1b, a tensioning method according to the invention is shown during the tensioning process. In a support structure 3 is a permanent Anchoring, here a thrust pin 4, arranged. At the head of the Schubdorns 4 is a temporarily inserted clamping device 6 for the clamping process arranged. The thrust mandrel 4, which in a borehole in the support structure. 3 is fixed, is preferably made of metal or plastic and is e.g. as a bolt or a thick-walled pipe is designed and is in the support structure 3, for. thick-walled tube designed and is in the support structure 3, for. screwed, embedded in concrete or glued. The tensioning device 6 comprises a clamp 11 molded holding device, a clamping press 9 and a plate 10 as formed Fastening device. The tensioning device 6 is by means of the clamp 11 held on the thrust pin 4. The force introduction element 1 comprises a transverse cross member 2 and a holder 13 comprising either at least one pressure plate, preferably two pressure plates or a clamping wedge or another Method for holding a composite material 5. The transverse cross member 2 is arranged at any point of the force introduction element 1, which cooperates via the holder 13 with the band-shaped composite material 5. The transverse cross member 2 and the plate 10 and the clamp 11 of the clamping device 6 are preferably made of metal with the required for the clamping operation Strength and dimension.

Die Spannpresse 9 der Spannvorrichtung 6 drückt zum Spannen des Verbundwerkstoffes 5 in Zugrichtung 8 auf die Platte 10, die temporär für den Spannvorgang mit dem Krafteinleitungselement 1, vorzugsweise mit der Quer-Traverse 2, verbunden ist. Durch den Spannvorgang mittels der hydraulischen Spannpresse 9 wird der Verbundwerkstoff 5 gespannt, wobei das andere Ende des Verbundwerkstoffes ebenfalls an der Tragstruktur befestigt oder sonst wie gehalten ist.The clamping press 9 of the tensioning device 6 presses to tension the composite material 5 in the pulling direction 8 on the plate 10, the temporary for the clamping operation with the force introduction element 1, preferably with the cross-traverse 2, is connected. By the clamping process by means of the hydraulic clamping press 9, the composite material 5 is tensioned, with the other end of the composite material also attached to the support structure or otherwise held is.

Der Verbundwerkstoff 5 kann in Form einer Lamelle ausgestaltet sein, die aus Fasern und einem Kunstharz besteht. Die Fasern können in einer Richtung d.h. unidirektional ausgebildet sein oder zusätzlich Fasern in anderen Richtung, insbesondere eines Winkels plus 45° und minus 45° zur unidirektionalen Hauptfaserichtung aufgebaut sein. Die Fasern können vorzugsweise Aramid, Carbon, Glas etc. sein, die in einem Kunstharz eingebettet sind. Das Kunstharz ist entweder ein Duromer, wie z.B. Epoxy, Acrylate oder ein thermoplastisches Material, wie z.B. Polyamid, Epoxy, Acrylate oder Kombinationen davon. Für die Erreichung einer optimalen Haftung zur Anpressplatte des Krafteinleitungselementes 1 kann die Oberfläche des Verbundwerkstoffs 5 speziell geprägt sein, z.B. mittels Schleifen aufgeraut oder mit einem Klebstoff vorbehandelt oder mit einem Vorbehandlungssystem behandelt. The composite material 5 may be configured in the form of a lamella, the made of fibers and a synthetic resin. The fibers can be in one direction i.e. be formed unidirectionally or additionally fibers in other directions, in particular an angle plus 45 ° and minus 45 ° to the unidirectional main fiber direction be constructed. The fibers may preferably be aramid, carbon, Glass etc., which are embedded in a synthetic resin. The resin is either a duromer, such as e.g. Epoxy, acrylates or a thermoplastic material, such as. Polyamide, epoxy, acrylates or combinations thereof. For the achievement an optimal adhesion to the pressure plate of the force introduction element 1 can the surface of the composite 5 must be specially embossed, e.g. by grinding roughened or pretreated with an adhesive or with a pretreatment system treated.

In den Figuren 2, 2a und 2b ist die Vorrichtung nach dem durchgeführten Spannvorgang des Verbundwerkstoffs 5, einem Absenken und Einhängen der Verankerung hinter dem Schubdorn 4 dargestellt. Das Krafteinleitungselement 1, umfassend die Quer-Traverse 2, wird mittels der Presse 12 in Richtung der Tragstruktur 3 hinter den Schubdorn 4 gedrückt, wobei am Kopf des Schubdorns 4 das Absenken des Verbundwerkstoffes 5 durch eine Aussparung in der Tragstruktur 3 möglich ist. Vorzugsweise wird mindestens ein Passteil 7, eine Schiftung, zwischen den Schubdorn 4 und die Quer-Traverse 2 geschoben. Das Passteil 7 kann aus mehreren Stücken bestehen und passt möglichst genau in den Raum zwischen dem Schubdorn 4 und der kreisförmig, kallotenförmig ausgebildeten Quer-Traverse 2. Die kreisförmig ausgebildete Quer-Traverse 2 verhindert ein Verkanten des Verbundwerkstoffs 5. Ein solches Verkanten könnte zu einem Versagen durch Rissbildung des Verbundwerkstoffs 5 führen.In Figures 2, 2a and 2b, the device is performed after the Tensioning of the composite material 5, a lowering and hooking the Anchoring behind the shear pin 4 shown. The force introduction element 1, comprising the cross-beam 2, is by means of the press 12 in the direction of the support structure 3 pressed behind the thrust mandrel 4, wherein the head of the thrust mandrel 4 the Lowering of the composite material 5 through a recess in the support structure. 3 is possible. Preferably, at least one fitting part 7, a sphincter, between pushed the thrust pin 4 and the cross-Traverse 2. The fitting part 7 can consist of several pieces and fits as accurately as possible in the space between the thrust pin 4 and the circular, kallotenförmig transverse crossbar 2. The circular cross-Traverse 2 prevents tilting of the composite 5. Such tilting could lead to failure lead by cracking of the composite material 5.

Selbstverständlich ist die Erfindung nicht auf die gezeigte und beschriebene Ausführungsform beschränkt. Insbesondere das Krafteinleitungselement kann beliebig ausgeführt sein. Of course, the invention is not limited to the one shown and described Embodiment limited. In particular, the force introduction element can be executed arbitrarily.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
KrafteinleitungselementForce application element
22
Quer-Traverse / KalotteCross-beam / dome
33
Tragstruktursupporting structure
44
permanente Verankerungpermanent anchorage
55
VerbundwerkstoffComposite material
66
Spannvorrichtungjig
77
Passteilfitting part
88th
Zugrichtungtensile direction
99
Spannpressespan Press
1010
Befestigungsvorrichtungfastening device
1111
Haltevorrichtungholder
1212
PressePress
1313
Halterungbracket

Claims (9)

Verfahren zum Spannen eines Verbundwerkstoffes (5), welcher mittels eines Krafteinleitungselementes (1) an einer Tragstruktur (3) verankert wird, umfassend: Befestigung einer permanenten Verankerung (4) an der Tragstruktur (3), Anbringen einer Spannvorrichtung (6) an die permanente Verankerung (4), Spannen des Verbundwerkstoffes (5) mittels der Spannvorrichtung (6), welche über das Krafteinleitungselement (1) mit dem Verbundwerkstoffes (5) zusammenwirkt, Absenken und Einhängen des Krafteinleitungselementes (1) in die permanente Verankerung (4) und Entfernen der Spannvorrichtung (6) von der permanenten Verankerung (4). Method for tensioning a composite material (5), which is anchored to a support structure (3) by means of a force introduction element (1), comprising: Fixing a permanent anchoring (4) to the supporting structure (3), Attaching a tensioning device (6) to the permanent anchoring (4), Clamping the composite material (5) by means of the tensioning device (6), which interacts with the composite material (5) via the force introduction element (1), Lowering and hanging the force introduction element (1) in the permanent anchorage (4) and Remove the tensioning device (6) from the permanent anchorage (4). Verfahren zum Spannen eines Verbundwerkstoffes (5) nach Anspruch 1, dadurch gekennzeichnet, dass vor oder nach dem Anbringen der Spannvorrichtung (6) an die permanente Verankerung (4) das Krafteinleitungselement (1) an den Verbundwerkstoff (5) angebracht wird.Method for clamping a composite material (5) according to claim 1, characterized in that the force introduction element (1) is attached to the composite material (5) before or after the attachment of the tensioning device (6) to the permanent anchorage (4). Verfahren zum Spannen eines Verbundwerkstoffes (5) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Spannvorrichtung (6) eine Haltevorrichtung (11), eine Spannpresse (9) und eine Befestigungsvorrichtung (10) umfasst, wobei mittels der Spannpresse (9) und der mit dem Krafteinleitungselement (1) für den Spannvorgang verbundenen Befestigungsvorrichtung (10) der Verbundwerkstoff (5) gespannt wird.Method for clamping a composite material (5) according to claim 1 or 2, characterized in that the clamping device (6) comprises a holding device (11), a clamping press (9) and a fastening device (10), wherein by means of the clamping press (9) and the fastening device (10) of the composite material (5) connected to the force introduction element (1) for the tensioning process is tensioned. Verfahren zum Spannen eines Verbundwerkstoffes (5) nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass das Absetzen und das Einhängen des Krafteinleitungselementes (1) an die permanente Verankerung (4) mittels einer Presse (12) erfolgt.A method for clamping a composite material (5) according to claim 1, 2 or 3, characterized in that the settling and the suspension of the force introduction element (1) to the permanent anchorage (4) by means of a press (12). Verfahren zum Spannen eines Verbundwerkstoffes (5) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass beim Einhängen des Krafteinleitungselementes (1) in die permanente Verankerung (4) der Verbundwerkstoff (5) in eine Ausweitung an der permanenten Verankerung (4) zu liegen kommt.A method of tensioning a composite material (5) according to any one of the preceding claims, characterized in that when mounting the force introduction element (1) in the permanent anchorage (4) of the composite material (5) comes to lie in an expansion of the permanent anchorage (4) , Verfahren zum Spannen eines Verbundwerkstoffes (5) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Krafteinleitungselement (1) eine Quer-Traverse (2) und/oder mindestens eine Anpressplatte (13) umfasst.Method for clamping a composite material (5) according to one of the preceding claims, characterized in that the force introduction element (1) comprises a transverse cross member (2) and / or at least one pressure plate (13). Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass die Befestigungsvorrichtung (10) der Spannvorrichtung (6) mit der Quer-Traverse (2) des Krafteinleitungselements (1) zusammenwirkt.A method according to claim 6, characterized in that the fastening device (10) of the tensioning device (6) with the transverse cross member (2) of the force introduction element (1) cooperates. Verfahren zum Spannen eines Verbundwerkstoffes (5) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass nach dem Spannvorgang, dem Absetzen und dem Einhängen des Krafteinleitungselementes (1) in die permanente Verankerung (4) mindestens ein Passteil (7) zwischen die permanente Verankerung (4) und das Krafteinleitungselement (1) geschoben wird.Method for clamping a composite material (5) according to one of the preceding claims, characterized in that after the tensioning operation, the settling and the suspension of the force introduction element (1) in the permanent anchorage (4) at least one fitting part (7) between the permanent anchorage ( 4) and the force introduction element (1) is pushed. Verfahren zum Spannen eines Verbundwerkstoffes (5) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass als permanente Verankerung (4) ein Schubdorn verwendet wird.Method for tensioning a composite material (5) according to one of the preceding claims, characterized in that a shear pin is used as the permanent anchoring (4).
EP03018427A 2003-08-14 2003-08-14 Method for tensioning a composite material Withdrawn EP1507048A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2088259A1 (en) * 2008-02-08 2009-08-12 S&P Clever Reinforcement Company AG Method and device for pre-tensioning reinforcement elements on structures

Citations (5)

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Publication number Priority date Publication date Assignee Title
DE19753318A1 (en) * 1997-12-02 1999-06-10 Sika Ag Reinforcing element for load-bearing or load-transmitting components and method for fastening it to a component surface
GB2334743A (en) * 1998-08-07 1999-09-01 Mouchel Consulting Limited System for prestressing structures
DE19849605A1 (en) * 1998-10-28 2000-05-04 Goehler Andrae Und Partner Ber Tensioning device for a band-shaped tension member
US6464811B1 (en) * 1998-02-26 2002-10-15 Eidgenössiche Materialprüfungs-und Forschungsanstalt EMPA Method and device for applying pretensed tension-proof reinforcing strips to a construction
BE1013910A3 (en) * 2001-01-10 2002-12-03 Immo Emergo Nv Pretensioned strengthening member for bridge span, is attached to underside of span to overcome sagging

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19753318A1 (en) * 1997-12-02 1999-06-10 Sika Ag Reinforcing element for load-bearing or load-transmitting components and method for fastening it to a component surface
US6464811B1 (en) * 1998-02-26 2002-10-15 Eidgenössiche Materialprüfungs-und Forschungsanstalt EMPA Method and device for applying pretensed tension-proof reinforcing strips to a construction
GB2334743A (en) * 1998-08-07 1999-09-01 Mouchel Consulting Limited System for prestressing structures
DE19849605A1 (en) * 1998-10-28 2000-05-04 Goehler Andrae Und Partner Ber Tensioning device for a band-shaped tension member
BE1013910A3 (en) * 2001-01-10 2002-12-03 Immo Emergo Nv Pretensioned strengthening member for bridge span, is attached to underside of span to overcome sagging

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2088259A1 (en) * 2008-02-08 2009-08-12 S&P Clever Reinforcement Company AG Method and device for pre-tensioning reinforcement elements on structures

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