WO2013124304A1 - Vorrichtung zur krafteinleitung in zugglieder aus faserverstärkten kunststoff-flachbandlamellen - Google Patents
Vorrichtung zur krafteinleitung in zugglieder aus faserverstärkten kunststoff-flachbandlamellen Download PDFInfo
- Publication number
- WO2013124304A1 WO2013124304A1 PCT/EP2013/053358 EP2013053358W WO2013124304A1 WO 2013124304 A1 WO2013124304 A1 WO 2013124304A1 EP 2013053358 W EP2013053358 W EP 2013053358W WO 2013124304 A1 WO2013124304 A1 WO 2013124304A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tension member
- clamping
- tension
- sleeve
- clamping element
- Prior art date
Links
- 229920003023 plastic Polymers 0.000 title abstract description 17
- 239000004033 plastic Substances 0.000 title abstract description 17
- 241000446313 Lamella Species 0.000 title abstract 2
- 239000000463 material Substances 0.000 claims abstract description 26
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 32
- 239000011151 fibre-reinforced plastic Substances 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 19
- 238000004873 anchoring Methods 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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- 238000003780 insertion Methods 0.000 description 1
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- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
- E04C5/127—The tensile members being made of fiber reinforced plastics
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/14—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using wedges
-
- 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
-
- 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
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/44—Clasp, clip, support-clamp, or required component thereof
- Y10T24/44641—Clasp, clip, support-clamp, or required component thereof having gripping member formed from, biased by, or mounted on resilient member
- Y10T24/44932—Clasp, clip, support-clamp, or required component thereof having gripping member formed from, biased by, or mounted on resilient member having specific surface material or irregularity on or along engaging face
Definitions
- the invention relates to a device for introducing force into tension members made of fiber-reinforced plastic ribbon slats according to the preamble of the first claim. Furthermore, the invention relates to a method for introducing force into such tension members, the use of a corresponding device, tension members, which one or more inventive
- WO 2005/061813 A1 describes anchorages for tension members consisting of two wedges and an anchor body, which essentially represents a sleeve for the wedges, wherein between wedges and tension member and / or between wedges and sleeve a second, in turn wedge-shaped layer is arranged.
- This second wedge-shaped layer consists of a material with a lower modulus of elasticity than that of the first wedges.
- Tension member wedges must be driven with tension member in the sleeve. Since the wedges must be driven in the pulling direction of the tension member, is lost in the application of such systems to prestressed tension members clamping force.
- the object of the present invention is therefore to provide a device for introducing force into tension members made of fiber-reinforced plastic ribbon slats, which overcomes the disadvantages of the prior art and which can be attached to a tensioned tension member, without losing clamping force is lost. According to the invention, this object is achieved by a device according to claim 1.
- the core of the invention is therefore a device for introducing force into
- Tension members made of fiber-reinforced plastic ribbon slats comprising at least one clamping element, which is arranged on the tension member and has at least one contact surface with the tension member; such as
- the clamping element is formed from at least two superimposed layers, of which at least one first, soft layer consists of a material which has a modulus of elasticity in the range from 1000 to 6000 MPa, and of which at least one second, hard layer a material which has a higher modulus of elasticity than the soft layer, and in which the entirety of the clamping elements has a structure without wedge-shaped or has a wedge-shaped or conical structure, wherein the cross-sectional reduction in this case against the
- the device according to the invention has the advantage that the use of clamping elements with the properties described produces a uniform clamping pressure or transverse pressure in the interface between tension member and clamping element, which is a very efficient and
- the inventive device also has a reduction of
- the at least preferably used for the soft layer of the clamping elements plastic additionally ensures the electrical isolation between the electrically conductive blade and the typically made of steel anchoring in the building. Without galvanic separation, there is a risk that the tension member is electrically connected via the anchors with the inner steel reinforcement of reinforced concrete to be reinforced component and forms a galvanic macroelement with this. This can become one lead to very rapid progressive corrosion of the anchorages or the internal steel reinforcement of the reinforced concrete component.
- FIG. 1 shows schematically an inventive device with tension member
- FIG. 2 schematically shows an apparatus according to the invention with tension member
- 3 shows schematically a cross section through an inventive
- Figure 5 schematically shows a cross section through an inventive
- FIG. 6a schematically shows a longitudinal section through an inventive device
- Figure 6b shows a schematic longitudinal section through an inventive
- FIG. 7 schematically shows a section of the construction of a device according to the invention with friction element and tension member; 8 shows schematically a longitudinal section through an inventive
- Figures 9a to 9c each schematically a longitudinal section through a
- FIGS. 10a to 10e schematically show the steps of a method for introducing force into tension members made of fiber-reinforced plastic flat strip slats in longitudinal section;
- Figures 1 1 a and 1 1 b schematically anchoring a tension member
- Figures 12a and 12b schematically a tension element for a tension member
- Device for the introduction of force to a supporting structure to be reinforced in longitudinal section and in the plan view.
- Figure 1 shows a device 1 for introducing force into tension members 2 made of fiber-reinforced plastic ribbon slats comprising a clamping element 3, which is arranged on the tension member and having a contact surface with the tension member, and at least one sleeve 4, which is arranged around the clamping element and the tension member around and thereby exerts a clamping pressure on the tension member via the clamping element.
- the clamping element is formed from at least two superimposed layers, of which at least one first, soft layer consists of a material having a modulus of elasticity in the range of 1000 to 6000 MPa, and of which at least one second, hard layer consists of a material, which has a higher elastic modulus than the soft layer.
- the term “soft layer” describes that layer of the clamping element which has a modulus of elasticity in the range of 1000 to 6000 MPa.
- the term “hard layer” refers to that layer of the clamping element having a higher modulus of elasticity than that of the soft layer.
- the totality of the clamping elements has a structure without a wedge suit or a wedge-shaped or conical structure, in which case the
- Cross-section reduction runs against the pulling direction of the tension member, and in that the sleeve has an inner shape suitable for receiving the at least one clamping element and for exerting a clamping pressure.
- clamping elements is understood here as meaning all clamping elements of a device, ie if a device comprises, for example, two clamping elements, then these two clamping elements also form the entirety of the clamping elements If the device has a plurality of clamping elements, this means that the clamping elements lie opposite each other with their contact surfaces, wherein at least the tension member is arranged between the contact surfaces Usually no influence on the wedge suit of the
- the clamping element can in principle have any desired shape, provided that this is suitable for the tension member between clamping element and sleeve or between several
- clamping elements are each shown in one piece, i. the hard and soft layers are not shown separately.
- the device according to the invention has one or two clamping elements, which are arranged on or around the tension member and each have at least one contact surface with the tension member.
- Figure 2 shows a preferred embodiment of the device 1 for
- tension members 2 made of fiber-reinforced plastic flat strip lamellae comprising two clamping elements 3, which are arranged around the tension member and each have at least one contact surface with the tension member, and at least one sleeve 4, which is arranged around the clamping elements and thereby on the clamping elements a
- the sleeve is a rigid sleeve, that is to say the sleeve has substantially higher rigidity relative to the clamping element and in particular in relation to the soft layer of the clamping element.
- the sleeve is in particular made of a plastic, of metal, of a metal alloy or of another high-strength material.
- the sleeve is made of fiber-reinforced plastic or steel, most preferably made of carbon fiber reinforced plastic based on epoxy resin.
- the sleeve can be configured as desired, provided that they
- the sleeve need not be tubular, but may be suitable for receiving the clamping elements bore or recess in an arbitrary shaped object.
- Figure 3 shows a cross section through an inventive device 1 consisting of a tension member 2, a clamping element 3 and a sleeve 4, wherein the sleeve has the shape of a tube halved in the longitudinal direction with a flat support 41 as a counterpart to the clamping element.
- Figure 4 shows a cross section through an inventive device 1, wherein the sleeve 4 has a rectangular shape with a flat support 41 as a counterpart to the clamping element.
- the clamping element 3 in the form of a cuboid or a dab wedge, wherein the cross-sectional reduction of the blunt wedge runs against the pulling direction of the tension member.
- Figure 5 shows a cross section through an inventive device 1 with a sleeve 4, which has a rectangular shape, wherein these
- Embodiment two clamping elements 3 which are arranged around the tension member 2.
- the clamping elements 3 in the form of cuboids or blunt wedges, wherein the cross-sectional reduction of the blunt wedges extends against the pulling direction of the tension member.
- Figure 6a shows a longitudinal section through an inventive device consisting of a tension member 2, a clamping element 3 and a sleeve 4, wherein the clamping element has a cross-sectional reduction against the pulling direction 6 of the tension member 2.
- the sleeve 4 accordingly has an inner shape suitable for receiving the clamping elements and for exerting a clamping pressure.
- the sleeve can be formed in one piece or in several parts, wherein in multi-part design, individual parts can be used from different materials.
- the sleeve of a suitable recess for example in the concrete of a structure to be reinforced in combination with a, the recess covering
- FIG. 6b shows a longitudinal section through an inventive device consisting of a tension member 2, two clamping elements 3 (soft and hard layer not shown separately) and a sleeve 4, which has a rectangular cross-sectional shape.
- the sleeve 4 is in this case constructed of several parts from an outer part 4a without cross-sectional reduction or
- Wedge suit and two inner parts 4b, which are formed in this case as pointed wedges.
- the clamping elements are applied in a first step.
- the outer part of the sleeve is pushed over the clamping elements.
- An analogous embodiment is also particularly suitable for a device with only one clamping element, as shown for example in FIG.
- the sleeve is preferably a tubular sleeve with a round cross-section, wherein the inner shape of the sleeve must always be a suitable shape for receiving the clamping elements with tension member and optionally friction element, which is sufficient to exercise a sufficient
- Clamping pressure on the tension member is suitable.
- a sleeve When using two clamping elements in the form of blunt wedges a sleeve is used with a rectangular cross-section, in which case the inner shape of the sleeve must always have a suitable form for receiving the clamping elements with tension member and optionally friction element.
- the sleeve can be made of sufficiently rigid plates.
- the sleeve In order to exert an optimal clamping pressure on the tension member, the sleeve typically has an inner shape, which has a relation to the outer shape of the clamping elements with tension member and optionally friction element reduced cross-section.
- the difference in the diameter of the entirety of the clamping elements with tension member and optionally friction element to the inner diameter of the sleeve is in particular 2 to 10%, preferably about 5%.
- the clamping pressure can also be generated by other means than pushing or driving.
- a multi-part sleeve can be arranged and fixed directly around the clamping elements. If the device is a device, as shown in FIG. 6b, the clamping pressure is not generated by pushing the sleeve as such, but by driving the inner parts, ie the wedges between the outer part of the sleeve and clamping elements.
- the tension member consists of a fiber-reinforced plastic ribbon strip, as is known in the art for different applications.
- these are unidirectionally fiber-reinforced plastic flat strip lamellae.
- the fiber reinforcement is usually carried out by
- the device according to the invention additionally comprises a friction element in the area of the contact surfaces between the clamping element and the tension element.
- the friction element has the function to increase the friction between the clamping element and the tension member and thus to prevent the slip-out of the tension member from the device even with particularly high tensile forces.
- the friction element is selected from
- the hard grains are in particular sharp-edged grains, which typically consist of a material which has a Mohs hardness in the range of> 5, in particular of> 7, preferably of> 9.
- the hard grains are those of corundum or silicon carbide.
- the grain size of the hard grains is typically 0.05 to 1 .0 mm, in particular 0.2 to 0.5 mm.
- the friction element consists of a coating of the clamping element in the region of its contact surface with the tension member, with hard grains.
- the device is an embodiment with more than one clamping element, this comprises in particular in the region of
- Figure 7 shows a schematic layer structure of a device, as has already been described in Figure 2, wherein the clamping elements 3 in this embodiment have a friction element 7 in the form of a coating of the clamping elements with hard grains.
- the force is introduced into the tension member in a preferred
- the force is typically introduced by the fact that, viewed in the pulling direction 6 of the tension member 2, before the inventive device 1, a slot plate 5 is arranged, on which the
- the slotted plate points while a slot through which the tension member can be passed. At the same time, the slotted plate supports the clamping elements 3 on as large a surface as possible.
- the slotted plate is made of metal or a metal alloy.
- the slotted plate does not have to be formed in one piece, but may consist of several parts.
- a multi-part slotted plate is suitable, for example, if it already attached to a ready-to-use tension member, which already with inventive devices for
- Clamping elements of the device according to the invention is particularly advantageous.
- the clamping elements between sleeve, tensile member and Abst Reifenung are included and have at high loads a, by their particular structure of at least two adjacent layers, conditional, volume constant elastic and
- the device according to the invention comprises two
- Clamping elements which are arranged around the tension member and one each
- clamping pressure exerts on the tension member.
- the clamping element of at least two
- superimposed layers are formed, of which at least a first, soft layer consists of a material having a modulus of elasticity in the range of 1000 to 6000 MPa, and of which at least one second, hard layer consists of a material having a higher modulus of elasticity than the soft Layer has.
- a clamping element of the device according to the invention consists of two layers, wherein
- the first soft layer is disposed between the tension member 2 and the second hard layer;
- a clamping element of the device according to the invention consists of three layers, wherein in each case a soft layer adjacent to the tension member 2 and one to the sleeve 4 and a hard layer between the two soft layers is arranged. Most preferably, a clamping element 3 of the inventive
- This embodiment in which the largest thickness of the soft layer is in the region close to the load, is particularly preferred because it makes it possible to uniformly distribute the contact pressure and the shear stress between clamping element and tension element from the load-near to the load-distant region or even to increase it slightly ,
- the average cross-sectional height of the hard layer of a clamping element of the device according to the invention is particularly preferably greater than the average cross-sectional height of the soft layer.
- the material of the at least one soft layer has a modulus of elasticity in the range from 1000 to 6000 MPa.
- the material of the soft layer further has a flexural strength of> 25 MPa, in particular from 50 to 150 MPa, and a compressive strength of> 25 MPa.
- the material of the soft layer of the clamping element is preferably plastic.
- any desired plastic with the corresponding physical properties can be used, it being possible for it to be filled or unfilled or optionally fiber-reinforced.
- a filled plastic for example, an elasticized mortar can be used.
- the soft layer of the clamping element consists of a plastic comprising at least one polyurethane polymer.
- the plastic is preferably unfilled.
- the advantages of the preferably used plastic are the high bending tensile and compressive strengths, which are very good in relation to the modulus of elasticity
- Clamping member is under the trade name SikaBlock ®, for example SikaBlock ® M940, commercially available from Sika AG Germany.
- the material of the hard layer of the clamping element is preferably a material having a modulus of elasticity of> 6000 MPa, in particular in the range of 10 ⁇ 00 to 220 ⁇ 00 MPa, preferably in the range of 12 ⁇ 00 to 25 ⁇ 00 MPa.
- the material for the hard layer of the clamping element is steel with a modulus of elasticity in the
- Epoxy resin which may be filled or unfilled and typically have two to three times higher modulus of elasticity than the material of the soft layer.
- the same plastic matrix as for the soft layer can also be used for the production of the hard layer of the clamping element, wherein in the case of the hard layer the modulus of elasticity can be adjusted, for example, by fillers and degree of filling.
- the soft and hard layers of the device according to the invention can be placed loosely on top of each other, so that they are held together only via the clamping pressure within the device, or they can also be connected to one another.
- the clamping element is formed as a composite component of the two layers.
- FIG. 9 a shows a device according to the invention in an embodiment in which the entirety of the clamping elements 3 has a conical structure, the cross-sectional reduction being counter to the pulling direction 6 of FIG. 9 a
- the sleeve 4 has a suitable for receiving the clamping elements and for exerting a clamping pressure inner shape, so also a conical recess.
- the clamping elements 3, are each made two superimposed layers are formed, of which the first, soft layer 3a of a material having a modulus of elasticity in the range of 1000 to 6000 MPa, is applied directly to the tension member 2, and of which the second, hard layer 3b of a material, which higher
- FIG. 9b shows a device according to the invention in an embodiment in which the two clamping elements 3 each have a conical structure with a reduction in cross section against the pulling direction 6 of the tension member 2, and a corresponding sleeve 4 with a conical recess.
- the clamping elements 3 are each formed of a soft layer 3a and a hard layer 3b, the soft layer 3a enclosing the hard layer 3b on three sides.
- the device of FIG. 9b has a friction element 7 between the tension member 2 and the clamping element 3.
- FIG. 9c shows a device according to the invention in an embodiment in which the two clamping elements 3 each have a cylindrical structure without a wedge suit, and corresponding sleeve 4 with a cylindrical recess.
- the clamping elements 3 are each formed of a soft layer 3a and a hard layer 3b, the soft layer 3a enclosing the hard layer 3b on three sides.
- the soft layer 3a between the two clamping elements 3 are each have a cylindrical structure without a wedge suit, and corresponding sleeve 4 with a cylindrical recess.
- the clamping elements 3 are each formed of a soft layer 3a and a hard layer 3b, the soft layer 3a enclosing the hard layer 3b on three sides.
- Tension member 2 and hard layer 3b is wedge-shaped or formed as a blunt wedge, wherein the cross-sectional area reduction of the wedge against the pulling direction 6 of the tension member 2 extends. Furthermore, the device of Figure 9c between the tension member 2 and the clamping element 3 a
- Embodiments are also suitable for devices with one or more than two clamping elements.
- the diameter of the entirety of the clamping elements 3 is typically greater than the inner diameter of the sleeve. As a result, an optimal clamping pressure can be exerted on the tension member 2.
- Embodiment the production of the sleeve particularly simple, since it is available by disassembly, for example, a tube of suitable material.
- the outer side of the entirety of the clamping elements and the inner shape of the sleeve have a wedge suit in the range from 1: 4 to 1: 200, in particular in the range of 1: 100.
- the embodiments with wedge suit are preferred and have over the embodiments without wedge suit the advantage that the sliding or mounting of the sleeve on the clamping elements with tension member and optionally friction element, or the driving of this is facilitated in the sleeve possible.
- the sleeve on the side from which it is pushed or pulled onto the clamping elements have an additional, suitable for this purpose recess on its inner side.
- a suitable recess is a so-called chamfer.
- this recess is formed as a chamfer.
- Figure 9d shows an embodiment of the inventive device before the sleeve 4 has been pushed in Aufschiebecardi 19 via the clamping elements 3, wherein the sleeve 4 is provided with a chamfer 17, the facilitates the easier driving the clamping elements. Furthermore, the clamping elements are provided with a chamfer 18 for the same purpose.
- the present invention relates to the use of a device, as has been previously described, for introducing force into tension members made of fiber-reinforced plastic ribbon slats.
- the inventive device can be attached at any point of the plastic ribbon strip, depending on where the
- the device forms the
- the inventive device can also be used to connect several tension members made of plastic ribbon slats together.
- the tension members are arranged overlapping each other at least over the entire length of the device. Thereafter, instead of the overlap, a device according to the invention is attached.
- a friction element according to the above description is used in such a use between the tension members to be connected.
- the present invention relates to a tension member made of fiber-reinforced plastic ribbon strips, comprising at least one device, as described above.
- the tension member is one which has at least one end, in particular at both ends, a closure element, wherein this closure element is a device according to the preceding description.
- the present invention also relates to a tension member arrangement consisting of two or more tension members, which are connected to one another by means of a device according to the invention.
- the invention relates to a method for introducing force into tension members made of fiber-reinforced plastic ribbon slats comprising the steps i) applying a device according to the above description to a tension member 2, wherein only at least one clamping element 3 is arranged on the tension member and then the pushing or pulling a sleeve 4 via the at least one clamping element and the tension member, so that a clamping pressure is exerted on the tension member ;
- Another method for the introduction of force into tension members of fiber-reinforced plastic ribbon strips comprises the steps
- Clamping element 3 is arranged on the tension member and thereafter the pushing or pulling a sleeve 4 via the at least one clamping element and the tension member is effected, so that a clamping pressure is exerted on the tension member; v) anchoring the non-anchored end of the tension member.
- Tension member the tension member, for example, also using a device according to the invention as a final element, anchored.
- a preferred method for introducing force into tension members made of fiber-reinforced plastic flat strip lamellae is shown schematically.
- an embodiment of the device according to the invention with two clamping elements is shown.
- the clamping elements are shown in one piece for the sake of simplicity, ie the hard and the soft layer are not shown separately.
- Devices with one or more than two clamping elements run in an analogous manner.
- Figure 10a shows a one-sided anchored tension member 2, which by means of
- FIG. 10 a shows a holding device 8, which holds the tension member in the desired position and serves as a fastening means for the slotted plate 5, as well as the sleeve 4, through which the
- FIG. 10 b shows two clamping elements 3, which are each provided with a friction element 7 and are about to be arranged around the tension member 2.
- FIG. 10c furthermore shows the clamping elements 3 brought into their end position and the sleeve 4, which is pushed over the clamping elements.
- the sleeve can be with any suitable device on the
- FIG. 10d shows the device 1 according to the invention, as finished on
- Tension member is arranged. In this state, the second slot plate 10 and the pulling device 9 can be removed. The excess of the tension member between the inventive device and the pulling device can be removed. This is shown in FIG. 10e.
- the tension members are in particular tensioned or prestressed in the described method for connecting two or more tension members. Furthermore, between the tension members is preferably in each case a friction element, as has been previously described, used.
- Devices according to the invention in connection with tension members made of fiber-reinforced plastic flat strip lamellae are particularly suitable for reinforcing structures, preferably concrete structures.
- Such systems are used in the rehabilitation of existing structures, such as bridges or ceilings.
- described systems can also be used to reinforce masonry, wooden structures, steel structures, earthquake reinforcements and the like.
- Figures 1 1 a and 1 1 1 b show, for example, the anchoring of a
- Tension member 2 which is provided with a device 1 according to the invention for the introduction of force to a support structure to be reinforced 12. It is shown an embodiment of the device with two clamping elements. The clamping elements are shown in one piece for the sake of simplicity, ie the hard and the soft layer are not shown separately.
- Anchoring 1 1 is attached to the structure 12, which holds the tension member 2 in the desired position and serves as a fastening means for the slotted plate 5.
- the device 1 for introducing force which the
- End element of the tension member 2 is, viewed in the pulling direction of the tension member, behind the anchor 1 1 and behind the slotted plate fifth
- the attachment of the tension member typically has a tension element 13, which allows the tension of the tension member.
- FIGS. 12a and 12b show a suitable tension element for tensioning a tension member, which is provided with a device according to the invention
- Device 1 is provided for the introduction of force to a support structure to be reinforced 12th
- the slotted plate 5 is not directly at the anchor 1 1 'of the tension element in the tension element, but is typically over two
- the tension of the tension member is achieved by tightening the nuts 15.
- the force is introduced into the tension member here also via the clamping elements 3, by supporting this on the slot plate. 5
- the present invention also relates to a method for reinforcing structures 12 comprising the steps
- anchorages can be used on both sides for anchoring the tension member, as described above and illustrated in FIGS. 11a and 11b.
- Tension element is not necessary in this case, which in particular
- the tensioning device used for tensioning the tension member can be removed again after tensioning and fixing.
- the present invention also relates to a method for
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Moulding By Coating Moulds (AREA)
- Bridges Or Land Bridges (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13705173.6A EP2817465B1 (de) | 2012-02-21 | 2013-02-20 | Vorrichtung zur krafteinleitung in zugglieder aus faserverstärkten kunststoff-flachbandlamellen |
CN201380010293.5A CN104126045A (zh) | 2012-02-21 | 2013-02-20 | 将力导入由多个纤维增强的塑料扁带薄片制成的受拉构件的装置 |
AU2013224199A AU2013224199A1 (en) | 2012-02-21 | 2013-02-20 | Device for introducing a force into tension members made of fiber-reinforced flat-strip plastic lamellas |
CA2864257A CA2864257A1 (en) | 2012-02-21 | 2013-02-20 | Device for introducing a force into tension members made of fiber-reinforced flat-strip plastic lamellas |
JP2014558085A JP2015508136A (ja) | 2012-02-21 | 2013-02-20 | 繊維強化プラスチックのフラットストリップ帯状体製の引張部材に力を導入するための器具 |
KR20147022597A KR20140135158A (ko) | 2012-02-21 | 2013-02-20 | 섬유 강화 플랫-스트립 플라스틱 박편들로 만들어진 인장 부재들에 힘을 도입하는 디바이스 |
US14/465,223 US20140360129A1 (en) | 2012-02-21 | 2014-08-21 | Device for introducing a force into tension members made of fiber-reinforced flat-strip plastic lamellas |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12156397.7 | 2012-02-21 | ||
EP12156397.7A EP2631392A1 (de) | 2012-02-21 | 2012-02-21 | Vorrichtung zur Krafteinleitung in Zugglieder aus faserverstärkten Kunststoff-Flachbandlamellen |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/465,223 Continuation US20140360129A1 (en) | 2012-02-21 | 2014-08-21 | Device for introducing a force into tension members made of fiber-reinforced flat-strip plastic lamellas |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013124304A1 true WO2013124304A1 (de) | 2013-08-29 |
Family
ID=47740961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/053358 WO2013124304A1 (de) | 2012-02-21 | 2013-02-20 | Vorrichtung zur krafteinleitung in zugglieder aus faserverstärkten kunststoff-flachbandlamellen |
Country Status (8)
Country | Link |
---|---|
US (1) | US20140360129A1 (de) |
EP (2) | EP2631392A1 (de) |
JP (1) | JP2015508136A (de) |
KR (1) | KR20140135158A (de) |
CN (1) | CN104126045A (de) |
AU (1) | AU2013224199A1 (de) |
CA (1) | CA2864257A1 (de) |
WO (1) | WO2013124304A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020002111A1 (en) * | 2018-06-25 | 2020-01-02 | Carbo-Link Ag | Anchor sleeve and anchor system |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015109870A1 (de) | 2015-06-19 | 2016-12-22 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Stirnrad |
CN105569272B (zh) * | 2015-12-15 | 2018-11-30 | 重庆科技学院 | 棘爪式碳纤维板锚具 |
CN105862608B (zh) * | 2016-05-20 | 2017-09-19 | 东南大学 | 一种预应力纤维板加固梁板的自动化张拉系统及方法 |
GB2558663B (en) * | 2017-01-17 | 2021-04-07 | Foster Terence | Sock anchor unit |
US11186991B2 (en) * | 2018-10-31 | 2021-11-30 | Shenzhen University | Early warning device and ductility control method for prestressed FRP reinforced structure |
EP4071321A1 (de) | 2021-04-07 | 2022-10-12 | Vilniaus Gedimino technikos universitetas | Vorrichtung und verfahren zur verstärkung von strukturen mit vorgespannten faserverstärkten polymerlaminaten |
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- 2013-02-20 CA CA2864257A patent/CA2864257A1/en not_active Abandoned
- 2013-02-20 CN CN201380010293.5A patent/CN104126045A/zh active Pending
- 2013-02-20 EP EP13705173.6A patent/EP2817465B1/de active Active
- 2013-02-20 KR KR20147022597A patent/KR20140135158A/ko not_active Application Discontinuation
- 2013-02-20 JP JP2014558085A patent/JP2015508136A/ja active Pending
- 2013-02-20 AU AU2013224199A patent/AU2013224199A1/en not_active Abandoned
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WO2020002111A1 (en) * | 2018-06-25 | 2020-01-02 | Carbo-Link Ag | Anchor sleeve and anchor system |
CN112469873A (zh) * | 2018-06-25 | 2021-03-09 | 碳连接股份公司 | 锚套筒和锚系统 |
US11761208B2 (en) | 2018-06-25 | 2023-09-19 | Carbo-Link Ag | Anchor sleeve and anchor system |
Also Published As
Publication number | Publication date |
---|---|
KR20140135158A (ko) | 2014-11-25 |
EP2817465A1 (de) | 2014-12-31 |
US20140360129A1 (en) | 2014-12-11 |
JP2015508136A (ja) | 2015-03-16 |
AU2013224199A1 (en) | 2014-08-21 |
EP2817465B1 (de) | 2016-05-25 |
CN104126045A (zh) | 2014-10-29 |
CA2864257A1 (en) | 2013-08-29 |
EP2631392A1 (de) | 2013-08-28 |
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