WO1995029308A1 - Verankerung für hochleistungsfaserverbundwerkstoff-drähte - Google Patents
Verankerung für hochleistungsfaserverbundwerkstoff-drähte Download PDFInfo
- Publication number
- WO1995029308A1 WO1995029308A1 PCT/CH1995/000080 CH9500080W WO9529308A1 WO 1995029308 A1 WO1995029308 A1 WO 1995029308A1 CH 9500080 W CH9500080 W CH 9500080W WO 9529308 A1 WO9529308 A1 WO 9529308A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- anchoring
- anchor
- filler
- cone
- anchoring body
- Prior art date
Links
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
- 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
- E04C5/122—Anchoring devices the tensile members are anchored by wedge-action
-
- 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
- Y10T403/00—Joints and connections
- Y10T403/70—Interfitted members
- Y10T403/7047—Radially interposed shim or bushing
- Y10T403/7051—Wedging or camming
- Y10T403/7052—Engaged by axial movement
- Y10T403/7058—Split or slotted bushing
-
- 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
- Y10T403/00—Joints and connections
- Y10T403/70—Interfitted members
- Y10T403/7062—Clamped members
- Y10T403/7064—Clamped members by wedge or cam
Definitions
- the present invention relates to a conical anchoring system for anchoring one or more loaded, tensioned or prestressed tension element (s), comprising an at least conical anchor sleeve and a reel element (s) which fits into the sleeve ⁇ anchoring body, which has an essentially sliding surface along the sleeve wall, a method for producing a conical anchoring system and a method for enveloping or coating of filler particles for use in an anchoring system.
- Fiber composite materials are very advantageous because they combine high strength and low bulk density, the corrosion tendency of the steel being eliminated at the same time.
- the basic problem is to anchor carbon-reinforced tensile rods so reliably when replacing steel cables in guyed constructions in the form of wires and cables that the high static strength and fatigue strength can be optimally used.
- the break should take place on the free route and not in the anchorage.
- this is a connection problem, specifically the connection between the wire and the anchoring, or the conical anchors selected as a rule, the connection between the wire and the anchoring body.
- the main goal when designing an anchor system is to achieve the most favorable possible stress distribution in order to move the wire breaks to the free distance in the tensile test and to reduce the tendency of the anchoring system to creep.
- existing anchoring systems can be divided into three categories: clamp anchoring, glued anchoring and conical anchoring systems.
- Steel cables and fiberglass rods can be anchored with all three systems, with compression sleeves for smaller tension elements being used more frequently in practice, while potting anchors are mostly used for larger cables.
- conical casting anchor systems are generally preferred.
- the anchor system basically consists of four parts:
- the anchor sleeve is usually made of steel However, it can also be manufactured from fiber composite material or as steel anchor sleeve reinforced with fiber composite materials. It also serves as a form for the production of the anchoring body.
- the anchor body itself is a critical part of the system. It must form a good bond with the tension element in order to fully transmit the force introduced to the anchor sleeve. Load tests generally show initial damage in the front part of the anchor. "Front" means that part of the anchor in which the tension element leaves this free path in the direction.
- the object of the present invention is to propose an anchoring of slender, wire-like tension elements in a conical anchor system, so that during the tensile test, the slender tension elements such as the wires break on the free path and not in the anchor system itself proposed by means of a conical encapsulation anchor system according to the wording, in particular according to claim 1.
- the anchoring body must therefore have a varying stiffness, with a very low stiffness at the front part of the anchor and strongly increasing towards the rear, ie towards the unloaded end of the tension element.
- the variation in the system stiffness of the anchor can, as proposed according to the invention, be controlled in various ways, in particular by
- a conical casting anchor system for anchoring one or more loaded, tensioned or prestressed tension element (s) comprising a conical anchor sleeve and an anchoring body that fits into the sleeve and holds the tension element or tension elements, which has an essentially freely sliding surface along the sleeve wall.
- This is the anchor body characterized in that its stiffness increases from the entry of the tension element or the tension elements into the cone, ie from the front to the rear.
- Anchor fillers consisting of a binder matrix, such as, in particular, a plastic resin and at least one filler, are particularly suitable for producing anchor bodies for parallel wire or parallel bundles from a wide variety of materials, the different ones proposed according to the invention as mentioned above being suitable Rigidity of the anchoring body results from different degrees of filling, different geometry of the filler and / or from different rigidity or hardness of the filler.
- the different stiffness can also be obtained through the binder matrix, for example by using an essentially duromeric polymer system, such as a synthetic resin, with increased proportions of plasticizers, FI exibisizers, plasticizers in the front area of the anchor cone and / or elastomer blocks built into the polymer is provided.
- a plastic anchor system is preferably to be used, with epoxy resin systems, polyurethane resins in particular, but also the use of thermoplastics, such as polyether ether ketone, polysulfone, polycarbonate or polymethyl methacrylate, having proven to be advantageous.
- epoxy resin systems is that the strength of the resin system can already be reduced by using FI exi biators, plasticisers, etc., while on the other hand very high levels can be achieved by using highly cross-linked epoxy resin systems Strength values can be achieved.
- the stiffness of the anchoring body in a casting anchor system from the front area to the rear end by a factor in the range from approximately 20 to approximately 300, preferably by a factor of approximately 80 to 100 increases.
- the anchor cone has the smallest possible opening angle, namely an angle in the range from approximately 5 ° to approximately 15 °.
- a slender cone also leads to a more favorable stress state, the lower limit of the opening angle being put under load by the maximum permissible cone slip or the maximum displacement. If the cone angle is too small, there is either the risk of the entire anchoring body tearing out or of the anchor sleeve breaking.
- Another factor for influencing the shear stress field is the choice of the radius of the anchor opening when the tension element enters. According to the invention, it is proposed that the difference between the radii of the anchor opening and the tension element or the tension element bundle when the tension element (s) enter has a value in the range from approximately 0.5 to approximately 15 mm.
- wires consisting of carbon fiber reinforced epoxy resin have proven to be advantageous as tension elements.
- Such carbon fiber wires can be produced in the so-called extrusion process (pultrusion), in which case this process is well known as prior art, which is why a more detailed description of the production of carbon fiber reinforced wires can be dispensed with here.
- a thermoplastic matrix with, for example, polyether ether ketone is also possible.
- Suitable fillers in the anchoring body are of course any materials used as fillers for polymers, in particular steel, quartz, glass, rubber and / or preferably aluminum oxide in the form of scrap, sand, balls, fibers, granules and dg1. more to be suggested.
- the strength and rigidity in the anchoring body can be greatly influenced, for example pure epoxy resin having an elastic modulus in the range of approximately 500 . can have up to 4000 MPa, while using steel scrap or aluminum oxide values of up to 100,000 MPa can be achieved.
- the anchoring body in the anchor cone has at least two zones with different stiffness, but preferably about three to five zones.
- the stiffness values of the different zones have to increase from the front area to the rear area of the anchor cone.
- the ideal case is that the stiffness increases continuously or continuously from the front area to the rear section, but in practice this is only possible with increased effort and, in addition, the choice of three to five zones already provides a sufficient distribution the shear stress, as can also be seen from the following examples and figures.
- a method for producing a conical anchoring system according to the invention according to the wording according to claim 10 is proposed. It has proven to be problematic to fill the filler into the cone during the production of the encapsulation in such a way that the at least three to five zones can be produced with different stiffness. If, for example, a very fine filler is used, the distribution of the filler in the relatively soft front area is poor, whereas if a relatively coarse or large-volume filler is used, it is hardly possible to produce a soft zone. For this reason, it is further proposed according to the invention to coat or coat the filler with binder to different extents before the filling of the anchor filling material for producing the anchoring body.
- the filler is not or only slightly encased coated filler is used.
- the filler can be coated, for example, by means of whirl sintering. This method can also greatly reduce the shrinkage of the anchoring body in the front part.
- FIG. 1 a schematically, in section, an anchor cone with tears in the anchor body occurring perpendicular to the tension element, as typically occur with an insufficient gradation of stiffness;
- FIG. 1b shows in longitudinal section an analog anchor cone as in FIG. 1 a, but shown schematically, fractures occurring in the surface layer of the wire and the boundary layer between the wire and the anchoring body;
- FIGS. 3a to 3c show the influence of three stiffness gradations in the anchoring body with a soft zone on Front part of the anchoring to the shear stress distribution on the surface of a tension element;
- FIG. 5 shows a longitudinal section through an anchoring body according to the invention, the filler used in the anchoring body being enveloped or coated to different extents with a binder.
- the filler is coated thicker at the front than at the back.
- FIGS. 1 a and 1 b possible damage patterns are schematically shown in section, such as can occur when anchoring carbon fiber wires in a casting anchor system.
- the casting anchor system 1 comprises a sleeve 3 made of steel, which has a conical bore axially on the inside. Recessed in this cone is a correspondingly conical anchoring system 5, consisting of the graded anchoring body 7 and the carbon fiber wires 9 to be held therein, of which only a single wire is shown for reasons of simplicity.
- the friction should be as small as possible, either by applying a release agent to the inside of the sleeve 3, or else by anchoring the anchoring body 7 with a Teflon film, for example. This is essential so that the two bodies can be freely displaced relative to one another.
- the anchoring body 7 is usually reinforced at this interface with fabrics made of carbon, glass or Ara id fibers. When a tensile force F occurs on the carbon fiber wires 9, there are usually two possible damage patterns, which are shown schematically in FIGS. 1 a and 1 b. La shows transverse cracks 13 in the anchoring body 7, which generally occur in the front area of the anchoring body.
- Another cause of the premature failure of the anchoring can be the occurrence of a so-called sliding fracture, in that cracks or breaks 15 or cracks 15 or respectively in the surface layer of the wire or in the surface layer of the wire. 17 occur.
- the course of the fracture is such that first cracks 15 occur in the first area A, which subsequently continue to accelerate relatively quickly in the area B.
- the first damage occurs in the front area of the casting cone 5, obviously because a tension concentration occurs in this area when the tensile force F is increased.
- the starting point was wires consisting of carbon fiber-reinforced epoxy resin, the wires being produced using the so-called extrusion process (pultrusion).
- fiber rovings for example from the company Toray Industries, Japan, type T 700, are unwound from spools and drawn through an epoxy resin bath.
- the Araldit LY 556 / HY 917 system was selected as the epoxy resin matrix system.
- the fiber / resin bundle was shaped or drawn into the desired profile in a hardening mold while simultaneously gelling the resin.
- the wires were pulled through the hardening furnace by means of a pulling device and then cut into sections six meters long.
- an anchoring body 7 was used for anchoring the carbon bundle 9 (shown as a single wire), three zones 21, 23 and 25 being selected with different or stiffness increasing in the anchor filling compound from the front to the rear end.
- an f1 exi bi 1 i si ered resp. softened epoxy resin selected as the anchor matrix with a degree of filling (short fibers or other fillers) in the order of magnitude of approx. 3-10%, the chosen filler having a relatively small grain size.
- the E-module thus obtained was in the order of magnitude of approximately 500 MPa.
- an only slightly softened epoxy resin was used as the anchor matrix, the degree of filling being of the order of 10-20%, with a grain size of the aluminum oxide used of 14-28 (size) .
- the E module obtained in this way was of the order of magnitude depending on the epoxy chosen. resin and selected filler quantity between 5,000 and 150,000 MPa.
- the rear region 25 of the casting body was formed by a non-plasticized epoxy resin matrix, which itself already had an elastic modulus in the order of 4000 MPa.
- the degree of filling in this range was between 20 and 85%, whereby coarse-grained aluminum oxide was used.
- relatively low-viscosity Araldit F resin was used for the production of the epoxy resin matrix.
- the modulus of elasticity thus achieved in area 25 was in the order of magnitude of approximately 70,000 to 300,000 MPa.
- 3b shows the corresponding moduli of elasticity with respect to the total length of the casting body in a relative order of magnitude, as a result of which the increase in rigidity from the front area to the rear area of the anchor system is clearly recognizable.
- FIG. 3 c shows the shear stress J-i ⁇ as a function of the length of the anchor cone, which is determined in the individual regions, it now being clearly evident in comparison to FIG. 2 that region 21 has a considerably lower stress concentration peak sets.
- FIG. 4a again shows an anchor cone 5, in which, however, a largely continuous increase in the rigidity in the anchoring body from the front area to the rear area of the anchor cone is achieved.
- the front Area 21 from FIG. 3 is formed by the three individual areas 21 ', the adjoining area 23 by the three zones 23', while the rear area 25 largely corresponds to that from FIG. 3.
- FIG. 4b there is a largely uniform increase in the modulus of elasticity, which is represented by curve C.
- the gradation B corresponds to that in FIG. 3b, while A represents the case where the modulus of elasticity or the rigidity is constant along the entire anchor cone, respectively. the anchor filling compound is homogeneous along the entire length.
- the anchoring body should comprise at least two or preferably three to five areas which have different stiffnesses.
- the front area 21 was constructed from an epoxy resin filled with polymer granules with a relatively low modulus of elasticity.
- the rearmost area 25, on the other hand, was filled with ceramic granules in order to obtain a relatively high rigidity and a high creep resistance.
- the middle transition area ch 23 was filled with a mixture of ceramic and polymer granules.
- duromeric or thermoplastic systems as anchor material, such as, in particular, polyurethane or polyester resin compositions, the setting of the stiffness being particularly simple, especially in the case of polyurethane resin systems.
- plasticizers, FI exibisators or even elastomeric blocks in the polymer system allows the softness or hardness to be modified, while on the other hand by increasing the crosslinking density for example, by using so-called Novol ac resins, the hardness or rigidity can be increased significantly.
- the radial pressures occurring on the wire surface when tensile forces occur must be sufficient to increase the interlaminar shear strength of the wires increase and prevent the wires from slipping out of the casting body.
- the rigidity in the anchoring body must not be too high, since otherwise the radial pressures occurring during tension are completely absorbed by the anchoring body and are not transmitted to the wire surface.
- the stiffness values increase by a factor of approximately 100 from the so-called soft front zone to the rear area. For example, stiffness values of approximately 2 to 3 GPa were measured in the front area, while the stiffness in the rear area can be up to 300 GPa.
- the opening angle of the anchor cone is as small as possible, since a slim cone leads to a favorable stress condition.
- the downward angle is limited by the permissible cone slip or by the maximum displacement under tensile load. If the cone radius is chosen too small, the radial stresses become too small, so that the anchor cone can be pulled out of the anchor sleeve or the sleeve can break open in the front area.
- a further optimization is possible in that the radius when the carbon fiber wires enter the anchor cone is only slightly larger than the radius of the carbon fiber bundle.
- the surface of the anchoring body in the linearly tapered anchor sleeve does not have to be correspondingly linearly tapered, but can be designed to taper in a curved manner towards the entry.
- this curved design of the casting body does not change the statement according to the invention that the stiffness must increase from the front area to the rear area in the anchor filling compound or in the casting body.
- the filler or the fillers be coated or coated differently with binder before filling in the anchor cone.
- a coating material such as, for example, the resin used as a binder
- a so-called fluidized bed granulator or a shaking or bi-axial mixer In this case, aluminum oxide or mineral granulate is whirled up in a mixing container by rotating a whirling tool and homogenized very finely.
- the coating material is then introduced into the mixture container, which coating material has a much lower modulus of elasticity compared to the granulate, in the order of magnitude of 10 to 1000 times smaller.
- the coating material can be the binder resin system which is used as the anchor filler matrix. However, it can of course be other materials that have a lower modulus of elasticity.
- the coating material is usually entered as a dry or sticky powder or in solution or in combination in the mix container. Depending on the dwell time in the fluidized bed granulator or in a shaker or biaxial mixer, a smaller or larger wall thickness is generated with which the filler is encased by the binder resin system. Each Depending on the substances used, the coated filler granules are subsequently dried or cured in an oven.
- the fillers produced in this way with different coating thicknesses can now, as shown in Fig. 5, be entered in the vertically standing anchor cone, with practically uncoated fillers being filled in the rear area, while fillers with a high wall thickness of bindemis in the front area of the cone be filled with resin.
- the bonding resin or the anchor matrix is injected, there is no longer any danger that the filler will be distributed homogeneously in the entire anchor cone, but, as required according to the invention, the degree of filling in the front area will be significantly lower than in the back.
- the rigidity in the front area is lower and in the rear area significantly increased.
- the anchoring body, shown in FIG. 5, thus consists of a so-called gradient material.
- coated fillers for example coated aluminum oxide
- the sensitive carbon fiber wires used in the front section cannot be damaged locally.
- the representation of the invention with reference to FIGS. 1 to 5 is of course not conclusively described, since the design of the anchoring system can be modified, varied or changed in any way. So the above described The invention is of course not limited to the use of carbon fiber wires, but can also be applied to anchor systems where other tension elements are used, such as steel cables, tension elements made of aramid fibers, glass fiber tension strands, etc.
- the manufacture of the anchor filler can also be used Any desired manner, and a wide variety of materials can be used for the production of the anchoring body. Practically all thermosetting polymer systems are particularly well suited, while thermoplastic casting compounds can of course also be used. Suitable fillers are, in particular, rubber, steel, mineral fillers, aluminum oxide, while all fillers conventionally used in polymeric casting systems can also be used in this regard.
- the rigidity in the anchoring body of an anchoring system increases from the front area to the rear area of the anchor cone (gradient material), so that the shear stress distribution along the surface of the tension elements is largely evenly distributed, i.e. to prevent a greatly increased voltage peak from occurring in the front area of the cone.
- the variation in the rigidity of the anchoring body is achieved by coating the fillers.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
- Multicomponent Fibers (AREA)
- Ropes Or Cables (AREA)
- Artificial Filaments (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Reinforcement Elements For Buildings (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95914260A EP0710313B1 (de) | 1994-04-25 | 1995-04-13 | Verankerung für hochleistungsfaserverbundwerkstoff-drähte |
AU21337/95A AU686782B2 (en) | 1994-04-25 | 1995-04-13 | Anchorage device for high-performance fiber composite cables |
DK95914260T DK0710313T3 (da) | 1994-04-25 | 1995-04-13 | Forankring for højydelsesfiberkompositmaterialetråde |
AT95914260T ATE192528T1 (de) | 1994-04-25 | 1995-04-13 | Verankerung für hochleistungsfaserverbundwerkstoff-drähte |
DE59508259T DE59508259D1 (de) | 1994-04-25 | 1995-04-13 | Verankerung für hochleistungsfaserverbundwerkstoff-drähte |
US08/564,247 US5713169A (en) | 1994-04-25 | 1995-04-13 | Anchorage device for high-performance fiber composite cables |
JP52725195A JP3578219B2 (ja) | 1994-04-25 | 1995-04-13 | 高性能繊維複合材料ワイヤの固定システム |
NO19955231A NO315951B1 (no) | 1994-04-25 | 1995-12-21 | Forankringssystem for höyytelsesfiberkomposittkabler |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1270/94-3 | 1994-04-25 | ||
CH127094 | 1994-04-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995029308A1 true WO1995029308A1 (de) | 1995-11-02 |
Family
ID=4206482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1995/000080 WO1995029308A1 (de) | 1994-04-25 | 1995-04-13 | Verankerung für hochleistungsfaserverbundwerkstoff-drähte |
Country Status (9)
Country | Link |
---|---|
US (1) | US5713169A (de) |
EP (1) | EP0710313B1 (de) |
JP (1) | JP3578219B2 (de) |
AT (1) | ATE192528T1 (de) |
AU (1) | AU686782B2 (de) |
DE (1) | DE59508259D1 (de) |
DK (1) | DK0710313T3 (de) |
NO (1) | NO315951B1 (de) |
WO (1) | WO1995029308A1 (de) |
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- 1995-04-13 WO PCT/CH1995/000080 patent/WO1995029308A1/de active IP Right Grant
- 1995-04-13 DK DK95914260T patent/DK0710313T3/da active
- 1995-04-13 AU AU21337/95A patent/AU686782B2/en not_active Ceased
- 1995-04-13 US US08/564,247 patent/US5713169A/en not_active Expired - Fee Related
- 1995-04-13 EP EP95914260A patent/EP0710313B1/de not_active Expired - Lifetime
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- 1995-12-21 NO NO19955231A patent/NO315951B1/no unknown
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Cited By (15)
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WO1999001231A1 (en) * | 1997-07-03 | 1999-01-14 | Ciba Specialty Chemicals Holding Inc. | Method for the coating or encapsulation of fluidisable substrates |
WO2000037749A1 (de) | 1998-12-21 | 2000-06-29 | Bbr Systems Ltd. | Verankerung für kohlenstofffaserverbunddrähte |
DE10010564C1 (de) * | 2000-03-03 | 2001-07-05 | Johann Kollegger | Verankerung für ein Zugelement aus Faserverbundwerkstoff |
WO2001065023A1 (de) | 2000-03-03 | 2001-09-07 | Johann Kollegger | Verankerung für ein vorgespanntes und/oder belastetes zugelement und ankerbüchse |
AT500048B1 (de) * | 2003-07-23 | 2006-09-15 | Sacac Schleuderbetonwerk Ag | Klemm- und spannhalterung für den temporären einsatz an cfk-verstärkungsstäben mit kreisrundem querschnitt sowie zugehörige cfk-verstärkungsstäbe |
AT500048A1 (de) * | 2003-07-23 | 2005-10-15 | Sacac Schleuderbetonwerk Ag | Klemm- und spannhalterung für den temporären einsatz an cfk-verstärkungsstäben mit kreisrundem querschnitt sowie zugehörige cfk-verstärkungsstäbe |
WO2005061813A1 (de) | 2003-12-22 | 2005-07-07 | Austria Wirtschaftsservice Gesellschaft M.B.H. | Verankerung für vorgespannte und/oder belastete zugelemente |
US7857542B2 (en) | 2003-12-22 | 2010-12-28 | Austria Wirtschaftsservice Gesellschaft M.B.H. | Anchoring for pre-tensioned and/or stressed tensile elements |
DE102014200153A1 (de) | 2014-01-08 | 2015-07-09 | Rud Ketten Rieger & Dietz Gmbh U. Co. Kg | Zugstange aus faserverstärktem Kunststoff mit um wenigstens einen Flanschkörper herum reichenden Fasern |
DE102014200153B4 (de) | 2014-01-08 | 2022-02-17 | Rud Ketten Rieger & Dietz Gmbh U. Co. Kg | Zugstange aus faserverstärktem Kunststoff mit um wenigstens einen Flanschkörper herum reichenden Fasern |
DE102018113466A1 (de) * | 2018-06-06 | 2019-12-12 | Aerodyn Consulting Singapore Pte Ltd | Seil, insbesondere zur Abspannung von Komponenten einer Windenergieanlage |
WO2020002111A1 (en) * | 2018-06-25 | 2020-01-02 | Carbo-Link Ag | Anchor sleeve and anchor system |
US11761208B2 (en) | 2018-06-25 | 2023-09-19 | Carbo-Link Ag | Anchor sleeve and anchor system |
CN111206502A (zh) * | 2020-01-07 | 2020-05-29 | 东南大学 | 一种整体浇筑式大拉力复材拉索的锚固方法 |
CN112095466A (zh) * | 2020-09-17 | 2020-12-18 | 东南大学 | 一种frp拉索锚固方法及锚固端头 |
Also Published As
Publication number | Publication date |
---|---|
ATE192528T1 (de) | 2000-05-15 |
NO315951B1 (no) | 2003-11-17 |
EP0710313A1 (de) | 1996-05-08 |
JP3578219B2 (ja) | 2004-10-20 |
US5713169A (en) | 1998-02-03 |
DE59508259D1 (de) | 2000-06-08 |
EP0710313B1 (de) | 2000-05-03 |
NO955231L (no) | 1995-12-21 |
JPH09501748A (ja) | 1997-02-18 |
AU2133795A (en) | 1995-11-16 |
DK0710313T3 (da) | 2000-09-25 |
NO955231D0 (no) | 1995-12-21 |
AU686782B2 (en) | 1998-02-12 |
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