EP0633348A1 - Faserverbundseil und verfahren zu dessen herstellung - Google Patents

Faserverbundseil und verfahren zu dessen herstellung Download PDF

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Publication number
EP0633348A1
EP0633348A1 EP94903071A EP94903071A EP0633348A1 EP 0633348 A1 EP0633348 A1 EP 0633348A1 EP 94903071 A EP94903071 A EP 94903071A EP 94903071 A EP94903071 A EP 94903071A EP 0633348 A1 EP0633348 A1 EP 0633348A1
Authority
EP
European Patent Office
Prior art keywords
wrapping
fiber
clearance
rope
thermosetting resin
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Withdrawn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
EP94903071A
Other languages
English (en)
French (fr)
Other versions
EP0633348A4 (de
Inventor
Toshiroh Itami Works Of Sumitomo Kido
Yoshifumi Itami Works Of Sumitomo Nishimura
Kenichi Itami Works Of Sumitomo Yamashita
Susumu Itami Works Of Sumitomo Yamamoto
Ikuo Itami Works Of Sumitomo Tanaka
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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
Priority claimed from JP5270077A external-priority patent/JPH07102491A/ja
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of EP0633348A1 publication Critical patent/EP0633348A1/de
Publication of EP0633348A4 publication Critical patent/EP0633348A4/de
Withdrawn legal-status Critical Current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
    • E04C5/12—Anchoring devices
    • E04C5/125—Anchoring devices the tensile members are profiled to ensure the anchorage, e.g. when provided with screw-thread, bulges, corrugations
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/38—Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
    • D07B1/025—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics comprising high modulus, or high tenacity, polymer filaments or fibres, e.g. liquid-crystal polymers
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D07B1/165—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay
    • 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
    • E04C5/085—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
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E04C5/12—Anchoring devices
    • E04C5/127—The tensile members being made of fiber reinforced plastics
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/20—Organic high polymers
    • D07B2205/2046—Polyamides, e.g. nylons
    • D07B2205/205—Aramides
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/30—Inorganic materials
    • D07B2205/3007—Carbon
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2207/00—Rope or cable making machines
    • D07B2207/40—Machine components
    • D07B2207/404—Heat treating devices; Corresponding methods
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides

Definitions

  • the present invention relates to a fibrous composite rope for use in prestressing members of PC (prestressed concrete) structures in the civil engineering and construction industry or strengthening or reinforcing members for power or communication cables, etc., and more particularly to such a fibrous rope which is obtained by stranding a plurality of fibrous cores or strands impregnated with a thermosetting resin.
  • the "rope” herein referred to is a generic term including in its meaning all ropes, cords and the like stranded materials.
  • Such a prestressing member comprises stranded steel wires as its base material, it is heavy in weight and cannot be free from problems caused by magnetism, and if its resin coating is damaged the stranded wires will corrode, resulting in the loss of required mechanical properties.
  • the fibrous composite ropes disclosed in Japanese Patent Publication No. Sho 62-18,679 is known as having a high tensile strength.
  • the disclosed fibrous composite rope is obtained by impregnating a fiber core with a thermosetting resin, covering the outer periphery of the impregnated core with a fiber braid after applying drying powder onto the periphery, and subsequently heating the covered core to cure the thermosetting resin.
  • thermosetting resin impregnated into the fiber core in which drying powder is used to prevent the thermosetting resin impregnated into the fiber core from leaking therefrom, the drying powder must be applied uniformly in a well controlled quantity, thus rendering the process or production control difficult. If such leakage of the thermosetting resin cannot be prevented, the leaked thermosetting resin will cause such fiber cores to be adhesively bonded to each other when they are brought together in a later stranding or twisting process, consequently to suppress their relative movements, resulting in reduced mechanical strength and flexibility of the resultant rope. Further, the existence of the drying powder will not have a desirable effect on integral adhesion of the thermosetting resin of the fiber core to the fibrous yarns of the braid covering the core. Besides, the thermosetting resin of the fiber core will substantially lose its plasticity when cured, rendering the twisting difficult, and so that a rope stranded of such rigidified cores would have its cores loosened when cut for use.
  • the inventors aimed at forming a prestressing material by using fiber-based materials having a high tensile strength and low elongation such as carbon fiber, glass fiber and aramid fiber, instead of using, as base material, stranded steel wires which is not only heavy in weight but poor in corrosion resistance.
  • the inventors have undertook a series of experiments and research works to successfully obtain a fibrous composite rope having sufficient mechanical properties and satisfiable anchorage to mortar, resins or other anchoring bodies to which the rope is embeddedly anchored.
  • a fibrous composite rope comprising a plurality of fiber cores stranded together, each of said cores being impregnated with a thermosetting resin and having a fiber bundle wrapped around the periphery thereof in one winding direction without clearance between the sides of adjacent turns of the bundle, namely, without wrapping clearance.
  • the present fibrous composite rope may be fabricated by first heating the thermosetting resin-impregnated fiber cores so as to semicure the resin, then wrapping said fiber bundle around the periphery of each said fiber core in one winding direction without wrapping clearance, stranding a plurality of the resultant fiber cores together into a rope form, and subsequently heating the stranded rope to finalize the curing.
  • thermosetting resin For preventing leakage of the thermosetting resin from the fiber core without semicuring the resin but merely by wrapping the fiber bundle around its periphery in such a manner that no clearance remains between the sides of adjacent turns of the bundle, it would be necessary to strictly control the manufacturing conditions by for example thickening the fiber bundle and controlling its winding force within an appropriate range during the wrapping process. Too thick fiber bundle will increase the diameter of the resultant rope, resulting in reduced tensile strength per cross-sectional area.
  • a fibrous composite rope comprising a plurality of fiber cores stranded together, each of said cores being impregnated with a thermosetting resin and having as a primary wrapping member said fiber bundle wrapped around the periphery thereof in one winding direction without wrapping clearance and further having as a secondary wrapping member a fiber bundle wrapped around the periphery of said primary wrapping member in the oppsite winding direction thereto without wrapping clearance.
  • the fibrous composite rope according to the second aspect of the present invention may be fabiricated by first heating the thermosetting resin-impregnated fiber cores so as to semicure the resin, then wrapping said fiber bundle of said primary wrapping member around the periphery of each said fiber core in one winding direction without clearance between the sides of adjacent turns of the bundle, further wrapping said fiber bundle of said secondary wrapping member around the periphery of said primary wrapping member in the opposite winding direction thereto without wrapping clearance, stranding a plurality of the resultant fiber cores together into a rope form, and subsequently heating the stranded rope to finalize the curing.
  • Either of the aforementioned methods may be modified to improve integral adheshion of the fiber core to the fiber bundle wrapping the same, for example, by applying a thermosetting resin to the wrapping fiber bundle internally thereof, or by controlling the semicured state of the thermosetting resin-impregnated fiber core so as to cause the resin to penetrate into the wrapping fiber bundle.
  • the method of the present invention first semicures the thermosetting resin and then wraps the fiber bundle around the core in one winding direction without clearance between the sides of adjacent turns of the fiber bundle. Since it is impossible to prevent the thermosetting resin from leaking in its liquid state and since application of the drying powder is not preferable for the aforementioned reason, the thermosetting resin is first semicured to obtain a highly viscous state which facilitates working. In addition, wrapping the fiber bundle around the fiber core ensures the prevention of resin leakage.
  • wrapping the secondary fiber bundle around the foregoing wrapping fiber bundle in the opposite winding direction thereto produces a bidirectionally wrapped fiber core, which allows fabrication of a fibrous composite rope from torsion-free fiber cores. That is to say, wrapping the fiber bundle around the fiber core only in one direction will rather tend to give rotation to the core, leaving a torsion therein. Such a torsion would act to impede even and uniform elongation of constituent fibers and consequently deteriorate mechanical properties of the resultant rope.
  • the secondary wrapping fiber bundle is wrapped around the primary fiber bundle in the opposite winding direction thereto without clearance between the sides of adjacent turns of the fiber bundle, thereby to give counterrotation to the core so as to offset the torsion.
  • the present fibrous composite rope is fabricated by stranding together a plurality of fibrous cores impregnated with a thermosetting resin around which is wrapped a fiber bundle without wrapping clearance, so that spiral peripheral grooves of the rope formed between adjacent cores thereof would not be slackened .
  • the present rope when used as a prestressing member, the present rope will exhibit strong adhesion to anchoring bodies.
  • a fibrous composite rope exhibiting poor adhesion tends to slide on the wedge surface and, in some cases, may slip off the wedge. Even if such a rope exhibiting poor adhesion is anchored by inserting its end in a pipe, pouring a mortar or resin into the pipe to fill the surrounding space of the rope end and curing the mortar or resin, the end tends to slide against such a mortar or resin to occasionally slip off the anchoring pipe. Thus, it is difficult to anchor such a rope with a practicably short anchoring length. Meanwhile, regarding the individual fiber cores constituting the rope which are poor in adhesion, relative slippage may occur between their primary and secondary wrapping members or between the wrapping members and the base core, occasionally resulting in complete slipping off.
  • either of the primary or secondary wrapping member may be wound so as to follow a screw thread-like pattern, namely, with a wrapping clearance between adjacent turns of the wrapping member or fiber bundle for obtaining rugged surfaces.
  • the primary and secondary wrapping members or fiber bundles may be wound with adjacent turns of the fiber bundle spaced apart from each other.
  • the primary wrapping member (inside) may be wound without wrapping clearance, followed by the secondary wrapping member (outside) which is wound with adjacent turns thereof spaced apart from each other, and vice versa.
  • the resultant fiber core can have a rugged peripheral surface.
  • thermosetting resin as well as torsion can be effectively prevented in the resultant fiber core. Any such residual torsion existing in the fiber core would impede even and uniform longitudinal elongation of the constituent fibers and lead to deteriorated mechanical properties of the resultant rope.
  • the present invention can successfully solve these problems.
  • the third example to be described herein later is most preferable for securing sufficient adhesion with a shorter anchoring length.
  • the description will be made in the order of the first, second and third examples, because such order would be appropriate for exactly understanding the present invention.
  • a plurality of aramid resin fibers or yarns of such fibers having a high tensile strength and low elongation are unwound from the respective feed reels 1 and bundled into a fiber core A.
  • the fiber core A is then fed into a thermosetting resin bath 2 to be impregnated with a thermosetting resin (e.g., unsaturated polyester or epoxy resin).
  • a thermosetting resin e.g., unsaturated polyester or epoxy resin.
  • the impregnated fiber core is then passed through a die (or forming mold) 3 to be reduced to a predetermined outside diameter and to remove excess resin, and is subsequently fed into a heater 4.
  • the fiber core is heated at about 90°C for about 30 seconds to cure the thermosetting resin, and then fed into a wrapping machine 5, where a fiber bundle or bunndled yarn 10 (FIG. 2) is wrapped around the peripheral surface of the fiber core A in one winding direction without clearance between the sides of adjacent turns of the bundle.
  • a thermosetting resin which may be the same or different from the aforesaid thermosetting resin, may be applied onto the fiber bundle 10 on its side coming inside when wrapped, for furthering integral adhesion to the core A.
  • FIG. 2 is shown the fiber core A wrapped with the fiber bundle 10 without clearance between the sides of its ajacent turns, namely, without wrapping clearance.
  • the resultant fiber core is wound up on a take-up reel 6.
  • a plurality of such wrapped fiber cores A are unwound from the respective reel 6 to be fed into a stranding machine 7, where they are stranded together.
  • the resultant stranded rope A is then heated in a heater 8 to finalize or complete the curing of the semicured thermosetting resin, and is subsequently wound up on a take-up reel 9.
  • thermoseting resin By wrapping the fiber core with the fiber bundle without clearance between its adjacent turns while the thermoseting resin being still in its semicured state, it is possible according to the present invention to surely prevent leakage of the thermosetting resin without using a drying powder as in the prior art and to prevent adjacent fiber cores from directly bonding to each other during the stranding process also as in the prior art. Further, protuberances on the rope surface or like unseemly external appearance caused by leaked resin can be eliminated according to the present invention.
  • a plurality of aramid resin fibers or yarns of such fibers having a high tensile strength and low elongation are unwound from the respective feed reels 1 and bundled into a fiber core A.
  • the fiber core A is then fed into a thermosetting resin bath 2 to be impregnated with a thermosetting resin (e.g., unsaturated polyester or epoxy resin).
  • a thermosetting resin e.g., unsaturated polyester or epoxy resin.
  • the impregnated fiber core is then passed through a die (or forming mold) 3 to be reduced to a predetermined outside diameter and to remove excess resin, and is subsequently fed into a heater 4.
  • the fiber core is heated at about 90°C for about 30 seconds to cure the thermo-setting resin, and then fed into a wrapping machine 5A, where a fiber bundle or bundled yarn 10 is wrapped as a primary wrapping member around the peripheral surface of the fiber core A in one winding direction without clearance between the sides of adjacent turns of the bundle. Then, the fiber core A is fed into another wrapping machine 5B, where another fiber bundle 10, as a secondary wrapping member, is wrapped around the fiber core A also without wrapping clearance but in the winding direction opposite to that of the primary wrapping member.
  • a thermosetting resin which may be the same or different from the aforesaid thermosetting resin, may be applied onto the fiber bundle 10 on its side coming inside when wrapped, for furthering integral adhesion to the core A.
  • FIG. 4(A) is shown the fiber core A wrapped with the primary and secondary fiber bundles 10 without clearance between the sides of its ajacent turns.
  • the resultant fiber core is wound up on a take-up reel 6.
  • a plurality of such wrapped fiber cores A are unwound from the respective reel 6 to be fed into a stranding machine 7, where they are stranded together.
  • the resultant stranded rope A is then heated in a heater 8 to finalize or comlete the curing of the semicured thermosetting resin, and is subsequently wound up on a take-up reel 9.
  • thermosetting resin By wrapping the fiber core with the fiber bundle without wrapping clearance while the thermoseting resin being still in its semicured state, it is possible according to the present invention to surely prevent leakage of the thermosetting resin to prevent adjacent fiber cores from directly bonding to each other during the stranding process as in the prior art. Further, in this preferred example, the bidirectional wrapping effectively eliminates torsion of the fiber core.
  • the fiber core of the present invention carbon fiber, glass fiber or the like may be used in addition to the aforementioned aramid resin fiber.
  • the wrapping fiber bundle used for the present invention may be made of an aramid resin fiber, vinylon fiber or polyester fiber.
  • an aramide fiber it is preferable to use an aramide fiber to improve alkali resistance of the resultant rope.
  • Example 2 shown in FIG . 3 the process of the aforementioned Example 2 shown in FIG . 3 is repeated, except that a secondary wrapping fiber bundle is wound by the wrapping machine 5B with its adjacent turns spaced apart from each other on a primary wrapping fiber bundle wound by the wrapping machine 5A without clearance between the sides of adjacent turns of the bundle in the winding direction opposite to that of the secondary wrapping member.
  • the resultant core has a rugged peripheral surface.
  • Example 3 the resultant fiber core of Example 3 comprising the primary wrapping fiber bundle 10A wound inside without wrapping clearance and the secondary wrapping fiber bundle 10B wound around the periphery of the primary fiber bundle in the opposite direction thereto with its adjacent turns spaced apart from each other.
  • Either one of the wrapping fiber bundles which is wound with wrapping clearance may vary from the other bundle which is wound without clearance (bundle 10A in the instant example) in at least one of a group of items including the number of fibers or yarns, shape, pitch, or wrapping tension of the bundle.
  • thermosetting resin which may be the same or different from the aforesaid thermosetting resin, may be applied onto these fiber bundles 10A and/or 10B on their sides coming inside when wrapped, for furthering integral adhesion to the core A.
  • Example 3 the mode of winding the primary and secondary wrapping members may be reversed from Example 3, namery, the primary member disposed inside may be wound with wrapping clearance, followed by winding the secondary member without wrapping clearance.
  • a third fiber bundle may be wrapped around the periphery of such a fiber core that is bidirectionally wrapped with fiber bundles as in Example 2. In such a case, the resultant fiber core would have an increased diameter.
  • a plurality of resultant fiber cores having a rugged peripheral surface are then stranded together and heated to be formed into a fibrous composite material having a rugged outer peripheral surface and exhibiting good adhesion to anchoring means, as intended by the present invention.
  • Differential height between the top and bottom of the rugged peripheral suraface of the wrapped fiber core, as viewed in its cross section, is apploximately 0.5 mm in Example 3, although it may preferably ranges from approximately 0.3 to 0.8 mm.
  • the base fiber core was prepared by bundling 18 aramid resin fibers of 6,000 deniers, and the core was impregnated with a thermosetting resin, the proportion of fiber to thermosetting resin being 65 % by volume of fiber.
  • a thermosetting resin a vinyl ester resin was used, and an aramid resin fiber as the wrapping fiber.
  • Each specimen of the fibrous composite ropes has its opposite ends secured to a tensile tester and its tensile load was measured.
  • the tensile tester used is shown in FIG. 5.
  • the tester had a pair of cylindrical anchoring jigs or fixtures, in which the opposite ends of the specimen 13 was inserted and mortar 11 was filled to fix the respective ends. Then, the tester exerted a tension on the specimen by pulling the same in the opposite directions, and the maximum tensile load was measured for evaluation.
  • the reference numeral 14 denotes a crosshead, 15 a plate, and 16 a rubber plug, respectively.
  • Example 1 was prepared by using fiber cores each wrapped with only a primary fiber bundle wound in one direction therearound without winding clearance
  • the specimen of Example 2 was prepared by using fiber cores which are obtained by further wrapping a secondary fiber bundle around the resultant fiber core of Example 1 in the opposite winding direction without wrapping clearance.
  • another specimen was prepared, as a comparative example, by wrapping only a primary fiber bundle in one winding direction without wrapping clearance around a thermosetting resin-impregnated base fiber core without semicuring the resin, and stranding together a plurality of such wrapped fiber cores with the resin leaked out to the surfaces.
  • This improvement achieved in the preferred examples of the present invention would be attributable to positive prevention of the resin leakage by wrapping the periphery of the thermosetting resin-impregnated fiber core with the fiber bundle in the semicured state of the resin and to prevention of slackening of the peripheral spiral grooves of the rope by completing the curing of the semicured resin after stranding.
  • Example 2 employing bidirectional wrapping torsion of the fiber cores is prevented to effectively further the improvement.
  • Example 3-1 a specimen of Example 3-1, as one preferred example, prepared by using fiber cores wrapped with a primary fiber bundle without wrapping clearance and a secondary fiber bundle with wrapping clearance
  • a specimen of Example 3-2 prepared in a manner reverse to Example 3-1, namely, by using fiber cores wrapped with a primary fiber bundle with wrapping clearance, followed by a secondary fiber bundle wrapped without clearance.
  • a comparative example was prepared in the same manner as in the preceding tensile test, namely, wrapping only a primary fiber bundle in one winding direction without wrapping clearance around a thermosetting resin-impregnated base fiber core without semicuring the resin, and stranding together a plurality of such wrapped fiber cores.
  • the anchoring jigs were set as follows: Jig size: 30 mm I.D., 200 mm long Jig filler: mortar cured for 5 days
  • Example 3-1 adopting the secondary fiber bundle wound with wrapping clearance exhibits excellent adhesion.
  • Specimens Allowable tensile load Example 3-1 180
  • the present invention provides a fibrous composite rope having superior mechanical properties, fabricated by a novel method in which leakage of the thermosetting resin impregnated in the fiber core can be prevented without fail, so that adjacent cores are prevented from being directly bonded to each other in the subsequent stranding stage.
  • the drying powder used in the prior art for preventing leakage of the thermosetting resin impregnated in the fiber core can be eliminated together with the process step for its application to the fiber core.
  • bidirectional wrapping of the fiber bundles can prevent torsion of wrapped fiber cores, resulting in a fibrous composite rope having more excellent mechanical properties. Besides, if either the primary or secondary wrapping member is wound with wrapping clearance in the bidirectional wrapping configuration, high adhesion can be assured to anchoring means.
  • the fibrous composite rope according to the present invention has a high tensile strength comparable with PC steel members in addition to such features as high corrosion resistance, nonmagnetizability and light weight which are not provided by PC steel members.
  • the present invention has as expected increasingly wide applications, including marine structures, PC structures for linear motors, etc.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Ropes Or Cables (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP94903071A 1992-12-28 1993-12-27 Faserverbundseil und verfahren zu dessen herstellung. Withdrawn EP0633348A4 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP36131892 1992-12-28
JP361318/92 1992-12-28
JP39557/93 1993-02-02
JP3955793 1993-02-02
JP270077/93 1993-10-01
JP5270077A JPH07102491A (ja) 1993-10-01 1993-10-01 繊維複合線状体及びその製造方法
PCT/JP1993/001894 WO1994015015A1 (en) 1992-12-28 1993-12-27 Complex fiber string and method of manufacturing the same

Publications (2)

Publication Number Publication Date
EP0633348A1 true EP0633348A1 (de) 1995-01-11
EP0633348A4 EP0633348A4 (de) 1995-03-29

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EP94903071A Withdrawn EP0633348A4 (de) 1992-12-28 1993-12-27 Faserverbundseil und verfahren zu dessen herstellung.

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EP (1) EP0633348A4 (de)
CA (1) CA2126980A1 (de)
NO (1) NO943156L (de)
WO (1) WO1994015015A1 (de)

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WO1998031891A1 (en) * 1997-01-16 1998-07-23 Camplas Technology Limited Improvements relating to reinforcing bars
ES2156498A1 (es) * 1998-09-07 2001-06-16 Solteulat S L Procedimiento para la elaboracion de tejido textil.
WO2008129116A1 (en) * 2007-04-19 2008-10-30 Kone Corporation Rope of a hoisting appliance, method for manufacturing the rope of a hoisting appliance, and an elevator
CN102345238A (zh) * 2010-07-27 2012-02-08 江苏恒神碳纤维复合材料工程研究中心有限公司 一种纤维加强芯材湿法生产装置
CN102345236A (zh) * 2010-07-27 2012-02-08 江苏恒神碳纤维复合材料工程研究中心有限公司 一种多芯绞合型纤维加强芯材湿法生产工艺
CN103306150A (zh) * 2013-06-07 2013-09-18 南京诺尔泰复合材料设备制造有限公司 梯形截面的高强度复合材料绞线及其一步法制备方法
AU2011318673B2 (en) * 2010-10-21 2015-02-05 Reforcetech Ltd. Reinforcement bar and method for manufacturing same
WO2015001476A3 (en) * 2013-07-05 2015-04-23 Building A Future Foundation Cable and method of producing such a cable

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CN106812254A (zh) * 2015-12-01 2017-06-09 衡阳市新德力预应力有限公司 一种预应力锚具及其生产方法
CN109577559A (zh) * 2019-01-09 2019-04-05 浙江新纳复合材料有限公司 一种玄武岩复合材料筋材

Citations (3)

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Cited By (12)

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WO1998031891A1 (en) * 1997-01-16 1998-07-23 Camplas Technology Limited Improvements relating to reinforcing bars
GB2329199A (en) * 1997-01-16 1999-03-17 Camplas Technology Improvements relating to reinforcing bars
ES2156498A1 (es) * 1998-09-07 2001-06-16 Solteulat S L Procedimiento para la elaboracion de tejido textil.
WO2008129116A1 (en) * 2007-04-19 2008-10-30 Kone Corporation Rope of a hoisting appliance, method for manufacturing the rope of a hoisting appliance, and an elevator
CN102345238A (zh) * 2010-07-27 2012-02-08 江苏恒神碳纤维复合材料工程研究中心有限公司 一种纤维加强芯材湿法生产装置
CN102345236A (zh) * 2010-07-27 2012-02-08 江苏恒神碳纤维复合材料工程研究中心有限公司 一种多芯绞合型纤维加强芯材湿法生产工艺
AU2011318673B2 (en) * 2010-10-21 2015-02-05 Reforcetech Ltd. Reinforcement bar and method for manufacturing same
US11820709B2 (en) 2010-10-21 2023-11-21 Reforcetech Ltd. Reinforcement bar and method for manufacturing same
CN103306150A (zh) * 2013-06-07 2013-09-18 南京诺尔泰复合材料设备制造有限公司 梯形截面的高强度复合材料绞线及其一步法制备方法
CN103306150B (zh) * 2013-06-07 2016-01-20 南京诺尔泰复合材料设备制造有限公司 梯形截面的高强度复合材料绞线及其一步法制备方法
WO2015001476A3 (en) * 2013-07-05 2015-04-23 Building A Future Foundation Cable and method of producing such a cable
BE1021747B1 (nl) * 2013-07-05 2016-01-15 Building A Future Foundation Kabel en werkwijze om een dergelijke kabel te vervaardigen

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NO943156D0 (no) 1994-08-26
NO943156L (no) 1994-08-26
WO1994015015A1 (en) 1994-07-07
EP0633348A4 (de) 1995-03-29
CA2126980A1 (en) 1994-07-07

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