EP3480357B1 - Synthetic fiber cable - Google Patents

Synthetic fiber cable Download PDF

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Publication number
EP3480357B1
EP3480357B1 EP16907263.4A EP16907263A EP3480357B1 EP 3480357 B1 EP3480357 B1 EP 3480357B1 EP 16907263 A EP16907263 A EP 16907263A EP 3480357 B1 EP3480357 B1 EP 3480357B1
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EP
European Patent Office
Prior art keywords
side members
core member
fiber cable
contact
fibers
Prior art date
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EP16907263.4A
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German (de)
English (en)
French (fr)
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EP3480357A1 (en
EP3480357A4 (en
EP3480357C0 (en
Inventor
Shunji Hachisuka
Noriaki Kose
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Tokyo Rope Manufacturing Co Ltd
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Tokyo Rope Manufacturing Co Ltd
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    • 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
    • D07B1/04—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics with a core of fibres or filaments arranged parallel to the centre line
    • 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
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B5/00—Making ropes or cables from special materials or of particular form
    • D07B5/005—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties
    • 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
    • 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
    • D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
    • D07B1/147—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising electric conductors or elements for information transfer
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/10—Rope or cable structures
    • D07B2201/1012—Rope or cable structures characterised by their internal structure
    • D07B2201/102—Rope or cable structures characterised by their internal structure including a core
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/10—Rope or cable structures
    • D07B2201/1028—Rope or cable structures characterised by the number of strands
    • D07B2201/1032—Rope or cable structures characterised by the number of strands three to eight strands respectively forming a single layer
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/10—Rope or cable structures
    • D07B2201/104—Rope or cable structures twisted
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2001—Wires or filaments
    • D07B2201/2007—Wires or filaments characterised by their longitudinal shape
    • D07B2201/2008—Wires or filaments characterised by their longitudinal shape wavy or undulated
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2001—Wires or filaments
    • D07B2201/2014—Compound wires or compound filaments
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2015—Strands
    • D07B2201/2021—Strands characterised by their longitudinal shape
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2015—Strands
    • D07B2201/2046—Strands comprising fillers
    • 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
    • D07B2205/2003—Thermoplastics
    • 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
    • D07B2205/2007—Duroplastics
    • 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
    • D07B2205/201—Polyolefins
    • 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
    • D07B2205/20—Organic high polymers
    • D07B2205/2096—Poly-p-phenylenebenzo-bisoxazole [PBO]
    • 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
    • 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
    • D07B2205/3003—Glass
    • 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
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/206—Improving radial flexibility
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/208—Enabling filler penetration
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/20—Application field related to ropes or cables
    • D07B2501/2015—Construction industries
    • D07B2501/2023—Concrete enforcements
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
    • D07B7/02—Machine details; Auxiliary devices
    • D07B7/025—Preforming the wires or strands prior to closing

Definitions

  • This invention relates to a synthetic fiber cable.
  • Patent Document 1 describes the insertion of a rod-shaped body, which is made of carbon fiber or aramid fiber, into a concrete structure with the aim of enhancing strength.
  • Patent Documents
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2000-110365
  • An oblong hole is drilled into a reinforced-concrete pillar, and a rod-shaped body made of carbon fiber is driven into the oblong hole.
  • a gap remaining in the oblong hole is subsequently filled with a fluidized curable resin, thereby fixing the rod-shaped body made of carbon fiber within the concrete.
  • the rod-shaped body made of carbon fiber is merely fixed within the concrete by the fluidized curable resin that contacts the surface of the rod.
  • Document JP 2003 328284 A describes a twisted wire made of a fiber-reinforced resin.
  • a strand is sent to a twisted wire manufacturing process in a non-hardened state, in which the twisted wire is shaped, whereafter the twisted wire is sent to a curing process.
  • Document JPH09111679 A describes a wire rope that includes plural side strands formed in a smaller diameter than that of a core strand, wherein a wire rope of high flexibility is provided.
  • Document JP S63 219723 A discloses an untwisting operation of a tension member in which a spacer is attached to separate wires and generate gaps between the strands of the wire.
  • the wire is later embedded in mortar or the like together with the spacers.
  • An object of the present invention is to provide a synthetic fiber cable in which concrete or the like is allowed to penetrate the interior of a cable to thereby enlarge the area of contact with the concrete or the like, thereby making it possible to raise the efficiency of fixation.
  • a further object of the present invention is to provide a synthetic fiber cable that is excellent in terms of handling, the cable flexing suitably when bent.
  • the synthetic fiber cable according to the present invention is characterized by comprising: a core member having multiple resin-impregnated synthetic fibers, the fibers being bundled together; and multiple side members each having multiple resin-impregnated synthetic fibers, the fibers being bundled together in each side member; wherein the resin is in a cured state and each of the multiple side members has been shaped utilizing curability of the resin; each of the shaped multiple side members being in such a state that they are twisted together around the core member.
  • the core member and side members formed by the multiple resin-impregnated synthetic fibers maintain the shape that prevails when the resin has cured. If the resin is cured in a state in which a prescribed shape has been imparted, the core and side members will be capable of retaining this shape continuously thereafter.
  • the synthetic fibers that construct the core member and side members include carbon fiber, glass fiber, boron fiber, aramid fiber, polyethylene fiber and PBO (polyp-phenylenebenzobisoxazole) fiber, as well as other fibers. These fibers are extremely slender and can be impregnated with resin by bundling a number of these synthetic fibers.
  • the synthetic fiber cable is constructed by placing each of the multiple side members, which have been shaped beforehand by utilizing the curability of the above-mentioned resin, in a state in which they are twisted together around the core member.
  • suitable spaces or gaps can be assured in the interior of the synthetic fiber cable, specifically between the core member and its surrounding side members as well as between mutually adjacent side members, without impairing the substantially twisted state of the side members.
  • the synthetic fiber cable according to the present invention is suitable for use as, for example, an electrical transmission cable (power transmission line), optical fiber cable, submarine cable and other comparatively long members, and as reinforcement for equipment.
  • the core member and each of the multiple side members have, along the longitudinal direction thereof (there exist along the longitudinal direction), both contact portions where the side member is in contact with the core member and non-contact portions where the side member is not in contact with the core member. That is, the multiple side members surrounding the core member are not in continuous contact with the core member along their full length in the longitudinal direction but rather have portions which are not in contact the core member (portions where the side member is spaced away from the core member).
  • the synthetic fiber cable is prevented from losing its shape owing to the contact portions.
  • the non-contact portions define spaces between the core member and the side members, they contribute to improved bending ease (pliability) of the cable and are useful in facilitating the penetration of concrete, mortar or other coagulants or setting agents.
  • the synthetic fiber cable when the synthetic fiber cable is embedded in concrete, the concrete will penetrate into the interior of the synthetic fiber cable and the cable will be fixed firmly inside the concrete.
  • the synthetic fiber cable according to the present invention is suitable for use as reinforcement for concrete structures, by way of example.
  • each of the multiple side members each has, along the longitudinal direction thereof, both contact portions in contact with mutually adjacent side members and non-contact portions not in contact with the mutually adjacent side members. That is, the multiple side members surrounding the core member are not in continuous contact with adjacent side members along their full length in the longitudinal direction but rather have portions which do not contact the adjacent side members (there are gaps between the side members).
  • the synthetic fiber cable is prevented from losing its shape owing to the contact portions.
  • the non-contact portions contribute to improved bending ease (pliability) of the cable and are useful in facilitating the penetration of concrete, mortar or other coagulants or setting agents.
  • the contact portions and non-contact portions between the core member and the side members as well as the contact portions and non-contact portions between mutually adjacent side members, it is preferred that the contact portions and non-contact portions be present repeatedly along the longitudinal direction.
  • a synthetic fiber cable that is readily pliable along its full length. In a case where this synthetic fiber cable is used in a concrete structure, internal spaces that allow the penetration of concrete can be assured in dispersed fashion along the longitudinal direction of the synthetic fiber cable, and entrances that allow the penetration of concrete from the exterior to the interior can be assured in dispersed fashion.
  • Fig. 1 illustrates the external appearance of a carbon fiber cable.
  • Fig. 2 is an exploded perspective view of the carbon fiber cable.
  • Figs. 3 to 5 are enlarged sectional views of the carbon fiber cable taken along lines III-III, IV-IV and V-V, respectively, of Fig. 1 .
  • a carbon fiber cable 1 is constituted by a single core member 2 as well as six side members 3 (3a to 3f) (a 1 ⁇ 7 structure) placed in such a state that the side members are twisted together around the core member.
  • the carbon fiber cable 1, core member 2 and side members 3 all have a substantially circular shape.
  • the carbon fiber cable 1 is such that the core member 2 is placed at the center thereof while the six side members 3 are situated so as to surround the core member 2.
  • the carbon fiber cable 1 has a diameter of 5 to 20 mm, by way of example.
  • the core member 2 and side members 3 each comprise a large number, e.g., tens of thousands, of long carbon fibers 4 impregnated with a thermosetting resin (epoxy resin, for example) 5 and bundled into a shape having a circular cross section.
  • the overall carbon fiber cable 1 includes on the order of several hundred thousand of the carbon fibers 4.
  • Each of the carbon fibers 4 is very slender and has a diameter of 5 to 7 ⁇ m, by way of example.
  • the core member 2 and side members 3 may each be formed by bundling together the large number of carbon fibers 4 impregnated with the thermosetting resin 5 and twisting together a plurality of these bundles of carbon fiber.
  • the core member 2 and side members 3 can also be referred to carbon fiber reinforced plastics (CFRP).
  • the core member 2 and side members 3 employed have the same thickness (cross-sectional area).
  • the side members 3 used may of course be thinner or thicker than the core member 2.
  • the thickness of the core member 2 and of each of the side members 3 can be adjusted at will depending upon the number of carbon fibers 4.
  • the core member 2 and side members 3 constituting the carbon fiber cable 1 are all used in a state in which the thermosetting resin 5 has been heated and cured in advance.
  • the carbon fiber cable 1 is produced by placing the side members 3, hardened by utilizing the thermal curability of the thermosetting resin 5, in such a state that they are disposed and twisted together around the core member 2 which, similarly, has been hardened by utilizing the thermal curability of the thermosetting resin 5. Since the thermosetting resin 5 of the core member 2 and of each of the side members 3 has cured, suitable slippage is allowed between the core member 2 and surrounding side members 3 and between the side members 3 that are adjacent each other.
  • the six side members 3 that will be placed in a state in which they are twisted together around the core member 2 are all shaped into a helical configuration beforehand; the core member 2, on the other hand, does not undergo helical shaping. It goes without saying that the side members 3 are shaped into the helical configuration before the thermosetting resin 5 is thermally cured.
  • the pitch of the helix of each of the helically shaped side members is substantially the same, and the inner diameter of the helix of each of the side members 3 is substantially equal to the diameter of the core member 2.
  • Each of the side members 3 partially has portions (referred to as “bulged portions” below) shaped so as to bulge slightly outward. Bulged portions 3A to 3D at four locations are illustrated in somewhat emphasized form on the carbon fiber cable 1 shown in Fig. 1 .
  • Fig. 3 when the portion having the bulged portion 3A is viewed in cross section, it will be seen that one side member (side member 3a) among the six side members 3a to 3f around the core member 2 is not in contact with the core member 2 but is positionally displaced outwardly away from the core member 2.
  • the pre-shaping of the side member 3a is carried out so as to give rise to this positional displacement. Owing to the fact that the side member 3a is spaced away from the core member 2, an internal space (non-contact portion) 11 is assured between the core member 2 and side member 3a.
  • an approximately triangular space (indicated at reference numeral 20), when viewed in cross section, is formed by the core member 2, the side member 3c and the side member 3d].
  • the internal space 11 referred to in this specification does not mean the space 20 having the approximately triangular cross section but rather signifies the space between the core member 2 and each of the core members 3, this internal space being assured by the pre-shaping of the core members 3. By assuring the internal space 11, the two spaces 20 having the approximately triangular cross section are connected.
  • the side member 3a situated between the two side members 3b, 3f on either side is in contact with the one side member 3f but is not in contact with the other side member 3b and is positionally displaced away from the side member 3b (shaping of the side member 3a being performed in advance so as to give rise to this positional displacement).
  • a gap 12 is assured between the side member 3a and the side member 3b owing to the fact that the side member 3a is spaced away from the side member 3b.
  • Fig. 4 when a portion having the other bulged portion 3B is viewed in cross section, it will be seen that two side members (side members 3e, 3f) among the six side members 3a to 3f around the core member 2 are not in contact with the core member 2. Instead, internal spaces 11 are assured between the core member 2 and the side members 3e, 3f. Since the side members 3e, 3f are adjacent each other, the two internal spaces 11 are connected, resulting in the formation of a large internal space. Further, although the other side member 3c is in contact with the core member 2, it is situated spaced away from both of the two side members 3b, 3d situated on either side of the side member 3c. Thus the gaps 12 are assured on both sides of the side member 3c.
  • the internal spaces 11 are illustrated as closed spaces. However, the internal spaces 11 are not spaces completely cut off from the outside but rather are open spaces in communication with the outside. Specifically, the internal spaces 11 assured between the core member 2 and side members 3 are connected to the above-mentioned gaps 12 that are assured by the fact that two mutually adjacent side members are spaced away at other locations along the longitudinal direction of the carbon fiber cable 1. The internal spaces 11 are in communication with the outside through the gaps 12.
  • Fig. 5 when the portion having the bulged portions 3C, 3D is viewed in cross section, it will be seen that four side members (side members 3b, 3c, 3e, 3f) among the six side members 3a to 3f around the core member 2 are not in contact with the core member 2, thereby assuring internal spaces 11. Further, gaps 12 are assured between side members 3a and 3b, between side members 3c and 3d, between side members 3e and 3f, and between side members 3f and 3a.
  • the carbon fiber cable 1 is such that the locations and numbers of internal spaces 11 and gaps 12 differ depending upon the location where the cross section is taken. Naturally, depending upon where the cross section is taken, there will be instances where the internal spaces 11 and gaps 12 do not appear at all and, conversely, there can be instances where the six side members 3 will not be in contact with the core member 2 over its entire circumference. Further, as illustrated in Figs. 3 to 5 , the sizes of the internal spaces 11 and gaps 12 (the distances between the core member 2 and side members 3 and the distances between mutually adjacent side members 3) that appear in a cross section will vary. This means that the extent of the multiple bulged portions 3A to 3D varies. It should be noted that extremely large bulged portions (internal spaces 11 and gaps 12) do not exist in the carbon fiber cable 1 and, hence, the essentially twisted state is not impaired.
  • the bulged portions mentioned above are formed repeatedly along the longitudinal direction of the carbon fiber cable 1. That is, with regard to the core member 2 and each of the multiple side members 3, contact portions where the side members 3 are in contact with the core member 2 (portions where the internal spaces 11 do not exist) and non-contact portions where the side members 3 are not in contact with the core member 2 (portions where the internal spaces 11 do exist) appear repeatedly along the longitudinal direction. Similarly, with regard to side members 3 that are adjacent each other, contact portions (portions where the gaps 12 do not exist) and non-contact portions (portions where the gaps 12 do exist) appear repeatedly along the longitudinal direction.
  • the bulged portion may be provided at prescribed intervals, or provided randomly, on each side member along the longitudinal direction thereof. Although the bulged portion may be provided at identical intervals on all of the side members 3 along the longitudinal direction thereof, the intervals of the bulged portions along the longitudinal direction may be made different for every side member 3.
  • the bulged portions thus are provided on the carbon fiber cable 1 in dispersed fashion and the internal spaces 11 and gaps 12 along the longitudinal direction of the carbon fiber cable 1 are present in dispersed fashion.
  • the carbon fiber cable 1 is such that the thermosetting resin 5 on the core member 2 and on each of the side members 3 has cured, slippage is allowed between the core member 2 and side members 3 and between side members 3 that are adjacent each other. Furthermore, since the cable has the internal spaces 11 and gaps 12, it undergoes suitable flexing when bent and excels in handling ease. The cable can be put into compact form by being wound upon a small-diameter reel, thereby making handling easy at the workplace.
  • the carbon fiber cable 1 is suitable for use as the core material of a long object such as a power transmission line.
  • the carbon fiber cable 1 can be used as reinforcement for concrete structures, by way of example.
  • the concrete penetrates into interior of the carbon fiber cable 1 with the gaps 12 between mutually adjacent side members 3 serving as entrances. Concrete that has entered into the interior of the carbon fiber cable 1 from the gaps 12 enters the internal spaces 11 assured between the core member 2 and side members 3, resulting in greater area of contact between the carbon fiber cable 1 and the concrete.
  • the concrete may not fill the internal spaces 11 completely.
  • Concrete structures include bridge beams, piers, bridge rails, protective barriers and the like.
  • Fig. 6 is a graph illustrating results of a concrete pull-out test in which the horizontal axis is a plot of slip displacement (mm) and the vertical axis a plot of adhesion stress (N/mm 2 ).
  • the solid line in the graph indicates the result of testing the above-described carbon fiber cable 1
  • the broken line indicates the result of testing a carbon fiber cable that does not have the internal spaces 11 and gaps 12.
  • the diameters of the core members, side members, number and structure thereof, as well as the length embedded (the length fixed) in concrete were measured under identical conditions.
  • the concrete pull-out test was conducted in line with the "Method of Testing Adhesion Strength between Continuous Fiber Reinforcing Material and Concrete by Pull-out Test" of the Japan Society of Civil Engineers. According to this test, a concrete block in which the intermediate portion of a carbon fiber cable has been embedded with both ends of the cable exposed to the outside is fabricated. By using a tensile testing machine, a tensile load is applied at a prescribed loading rate to the carbon fiber cable projecting to the outside from one end of the concrete block, and a displacement gauge is used to measure the amount of displacement (slip displacement) of the carbon fiber cable projecting to the outside from the other end of the concrete block.
  • the degree of shaping of the side members 3 (the degree of constraint due to the side members 3) in the carbon fiber cable 1 can be expressed by D/( ⁇ 1 +2 ⁇ 2 ) ⁇ 100(%) (referred to as "shaping ratio" below) using diameter D of the cable 1 and diameters ⁇ 1 and ⁇ 2 of the core member 2 and side members 3, respectively, that constitute the cable 1. If the shaping ratio is on the order of 100.1 to 105(%), the carbon fiber cable 1 will undergo suitable flexing when bent, and the concrete adhesion efficiency will rise as well. In cases where the emphasis is placed on concrete adhesion efficiency and the concrete adhesion efficiency is to be raised, the multiple side members 3 may be shaped so as to take on a shaping ratio on the order to 110%, by way of example.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ropes Or Cables (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Insulated Conductors (AREA)
  • Moulding By Coating Moulds (AREA)
EP16907263.4A 2016-06-29 2016-06-29 Synthetic fiber cable Active EP3480357B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/069283 WO2018003030A1 (ja) 2016-06-29 2016-06-29 合成繊維ケーブル

Publications (4)

Publication Number Publication Date
EP3480357A1 EP3480357A1 (en) 2019-05-08
EP3480357A4 EP3480357A4 (en) 2020-02-26
EP3480357B1 true EP3480357B1 (en) 2024-01-24
EP3480357C0 EP3480357C0 (en) 2024-01-24

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JP (1) JP6393444B2 (es)
BR (1) BR112018076669B1 (es)
CA (1) CA3029606C (es)
EA (1) EA201892428A1 (es)
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JPS63219723A (ja) * 1987-03-10 1988-09-13 Taisei Corp ア−スアンカ−などに使用する引張材の加工装置
JPH08176980A (ja) * 1994-12-26 1996-07-09 Bridgestone Corp スチールコード及び空気入りラジアルタイヤ
US5768847A (en) * 1995-05-15 1998-06-23 Policelli; Frederick J. Concrete reinforcing devices, concrete reinforced structures, and method of and apparatus for producing such devices and structures
JP2978101B2 (ja) * 1995-10-11 1999-11-15 東京製綱株式会社 高柔軟性補強用ワイヤロープ及びロープ補強複合体
EP0834612A1 (en) * 1996-10-03 1998-04-08 N.V. Bekaert S.A. Steel cord with a core and a layer
JP3967957B2 (ja) * 2002-04-26 2007-08-29 日鉄コンポジット株式会社 繊維強化樹脂製撚線の製造法
JP3538649B2 (ja) * 2002-06-17 2004-06-14 株式会社タイムスエンジニアリング カーボン繊維ストランド及びその製造方法
FR3009225B1 (fr) * 2013-08-01 2015-07-31 Michelin & Cie Monobrin en cvr (composite verre-resine) ameliore

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EP3480357A1 (en) 2019-05-08
BR112018076669A2 (pt) 2019-04-02
JPWO2018003030A1 (ja) 2018-10-18
JP6393444B2 (ja) 2018-09-19
EP3480357A4 (en) 2020-02-26
US20190153671A1 (en) 2019-05-23
EA201892428A1 (ru) 2019-07-31
WO2018003030A1 (ja) 2018-01-04
CA3029606A1 (en) 2018-01-04
ZA201808482B (en) 2019-07-31
CA3029606C (en) 2020-09-01
BR112018076669B1 (pt) 2023-02-23
EP3480357C0 (en) 2024-01-24
MX2018013849A (es) 2019-02-28
MY184869A (en) 2021-04-28

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