US3716982A - Extra coarse-laid wire rope for reinforced concrete - Google Patents

Extra coarse-laid wire rope for reinforced concrete Download PDF

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Publication number
US3716982A
US3716982A US00087419A US3716982DA US3716982A US 3716982 A US3716982 A US 3716982A US 00087419 A US00087419 A US 00087419A US 3716982D A US3716982D A US 3716982DA US 3716982 A US3716982 A US 3716982A
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United States
Prior art keywords
wire rope
strands
lay
laid
concrete
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.)
Expired - Lifetime
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US00087419A
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English (en)
Inventor
Y Morohashi
T Morohashi
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Individual
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Individual
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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
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0673—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration
    • 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
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
    • 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
    • D07B2201/00—Ropes or cables
    • D07B2201/10—Rope or cable structures
    • D07B2201/104—Rope or cable structures twisted
    • D07B2201/1044—Rope or cable structures twisted characterised by a value or range of the pitch parameter given
    • 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
    • D07B2201/2024—Strands twisted
    • D07B2201/2029—Open winding
    • D07B2201/2031—Different twist pitch
    • D07B2201/2032—Different twist pitch compared with the core
    • 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
    • D07B2201/2034—Strands comprising crossing wires or filaments in the same layer
    • 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

Definitions

  • ABSTRACT Watkins Attorney-Cushman, Darby & Cushman [57] ABSTRACT
  • This invention generally involves wire rope which is suitable for use in the concrete working in very tall buildings or ultra high buildings. More particularly, this invention relates to a wire rope which has an extremely coarse-laid surface so as to increase adhesive strength or bond strength in respect to the placed concrete.
  • the extra coarse-laid wire rope is designated as a wire rope with an extremely coarse surface of wire rope lay with strands laid therearound axially along the entire length of the wire lay, and with other pieces axially provided on the layat regular intervals, so as to effectively increase adhesive strength or bond strength, in respect to the placed concrete in the case of concrete working in tall buildings.
  • Wire ropes are usually built up of a number of strands of wire laid together.
  • wire ropes built up in this way have smooth-faced even or level surfaces. Therefore, when such conventional wire ropes are imbedded into concrete, they have extremely small adhesive strength or bond strength in respect to the worked concrete. This is because the placed concrete is merely in contact with the surface of the imbedded wire ropes, more specifically the worked concrete merely contacts the shallow uneven parts of the lay when placed into the frames for the wire ropes. For example, when a building is affected by a large external force, the wire ropes are rubbed on the surface as they have small adhesive strength or bond strength in respect to the placed concrete, thereby the concrete becoming separated from the inert wire ropes.
  • wire ropes become inactive inreinforcing a bending or tensioning of the placed concrete, which is one of the weak points of concrete.
  • the surfaces of inert wire ropes are rubbed when in contact. with the placed concrete when either the ropes or concrete, or both of them are subjected to external stress; the wire ropes are therefore so frictionally damaged and at the same time their mechanical strength is so decreased that they verge upon being divided into pieces.
  • the present invention purports to overcome the aforedescribed Short-comings and to have the wire rope effectively increase its adhesive strength or bond strength by forming the rough surface thereof comprising the lay and the strands laid around the former.
  • the objective of this invention is the provision of an extra coarse-laid wire rope which will effectively increase the adhesive strength or bond strength in respect to the placed concrete so that both the rope and the concrete will be tight and inseparably combined.
  • Another objective is, by the provision of the extra coarse-laid wire, to sufficiently increase the weak bending and tension strength, being a present short-coming of concrete, by actuating the wire rope together with the placed concrete, both of which will become tight and inseparably combined against external force.
  • a further objective of this invention is the provision of an extra coarse-laid wire rope which will be combined and in close contact with the concrete so that the wire rope will not be rubbed by being in friction with the latter, thereby protecting the wire rope from frictional damage.
  • a still further objective of this invention is the provision of an extra coarse-laid wire rope which is simply built up of strands winding around the lay.
  • FIG. I is a front view of a part of the extra coarse-laid wire rope according to the first example of this invention.
  • FIG. 2 is taken on line I] II of FIG. 1;
  • FIG. 3 is a front view of a part of the extra coarse-laid wire rope according to the second example of this invention.
  • FIG. 4 is taken on line IV IV of FIG. 3;
  • FIG. 5 is a diagrammatically schematic view of the extra coarse-laid wire rope as described in the first example wherein a plurality of such ropes are applied in the concrete working an ultra high building.
  • FIG. 6 is a sectional view of the extra coarse-laid wire rope imbedded into the concrete.
  • NUMERAL 1 shows the extra coarse-laid wire rope, which is built up of the lay 2 and two of the wire strands 3, 4.
  • the lay 2 is built up of strands 5, 6, 7 (shown in FIG. 2) of the wires laid together.
  • the strands 3, 4 are laid around the surface of the lay 2 spirally. In this case, the phase angle of the crossing strands is in relation to the outer surface of the lay 2.
  • the crossing 8 of the'strands 3, 4, points towards the diameter of the lay 2.
  • the other parts of the strands unaffected by the crossings also project as high as the diameter of the laid around strands in the direction of the diameter of the lay 2, thereby forming the extremely coarse-laid surface of the wire rope I.
  • the laid around strands 3, 4 have the same structure as the strands 5,6, 7 forming the lay 2.
  • the extra coarse-laid wire rope according to the second example is shown in FIG. 3 and FIG. 4.
  • the lay 10 of the extra coarse-laid wire rope 9 according to the second example has the same structure as the lay 2 of the wire rope according to the first example. The same description is available for both examples.
  • the metal crosspieces 11,12, 13, 14 are inserted in the lay 10 in the direction of the axis thereof at regular intervals.
  • the ends of the crosspieces 11, 12, 13, 14 are fixedly provided by welding or screwing with top pieces l5, 16, 17, 18 in the form of a ball or the like made of iron or other material.
  • top pieces protruding out of each side of the wire rope lay 10 give a total width considerably larger than the diameter of the lay 10, thereby forming the extremely coarse-laid surface.
  • Shown in FIG. 5 is the extra coarse-laid wire rope applied to the pith reinforcing bars in the ultra high building 19.
  • NUMERAL 20 designates the joints of the extra coarse-laid wire ropes.
  • the concrete working is made together with the above applied wire ropes according to the usual method.
  • the concrete 21 (FIG. 6) ,is placed into the groove 22 formed between the lay 2 and the strands 3, 4, thereby bringing it into close contact with the said strands 3,4.
  • the wire rope increases the adhesive strength or bond strength in respect to the combined tightness when together with the concrete.
  • the grooves formed between the wire rope lay and top pieces are readily accessible and can be filled with concrete, thereby building up the wire rope tightly with the concrete.
  • the wire ropes placed into the concrete have an extremely coarse surface, thereby increasing their adhesive strength or bond strength in relation to the concrete because, the coarse surface of the wire rope can easily bind with the concrete.
  • both the extra coarse-laid wire rope and the concrete are equally affected by the stress.
  • the bending or tension of the weak points of the concrete are sufficiently reinforced by the extra coarse-laid wire ropes.
  • the tight contact of the wire ropes with the concrete tends to make it free from any rubbing contact between them, thereby preventing frictional damage.
  • top pieces fix edly provided on both ends of a crosspiece
  • the type of wire rope lay is not limited to the type of wire rope described in this invention1 commercial wire ropes such as standard hoisting rope, standard coarse-laid rope etc. can be employed as the lay to be laid around by strands.
  • An extra coarse-laid wire rope for reinforced concrete building construction comprising:
  • At least two strands each incorporating a plurality of wires, said at least two strands each being of at least as great diameter as the first-mentioned strands and being helically wound in two angularly opposite senses upon said built-up lay so as to cross one another at a phase angle of about l; the at least two strands being spaced to expose said lay exteriorly of the wire rope, between the at least two strands so the wire rope has a substantially greater diameter at the crossings of said at least two strands than where said lay is exposed exteriorly of the wire rope.
  • An extra coarse-laid wire rope for reinforced concrete building construction comprising:

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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)
  • Panels For Use In Building Construction (AREA)
US00087419A 1969-11-17 1970-11-06 Extra coarse-laid wire rope for reinforced concrete Expired - Lifetime US3716982A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44091919A JPS5030182B1 (enrdf_load_stackoverflow) 1969-11-17 1969-11-17

Publications (1)

Publication Number Publication Date
US3716982A true US3716982A (en) 1973-02-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00087419A Expired - Lifetime US3716982A (en) 1969-11-17 1970-11-06 Extra coarse-laid wire rope for reinforced concrete

Country Status (2)

Country Link
US (1) US3716982A (enrdf_load_stackoverflow)
JP (1) JPS5030182B1 (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916592A (en) * 1969-08-16 1975-11-04 Takashi Morohashi Structural members for buildings and buildings constructed therefrom
US4620401A (en) * 1985-04-26 1986-11-04 Societe Nationale De L'amiante Structural rod for reinforcing concrete material
US4789045A (en) * 1987-05-12 1988-12-06 Billy Pugh Co., Inc. Swing rope
EP1437451A1 (fr) * 2003-01-08 2004-07-14 Fontainunion S.A. Elément filaire de renforcement pour béton
EP1471192A1 (de) * 2003-04-22 2004-10-27 Pfeifer Holding GmbH & Co. KG Betonbauteilverbindungsvorrichtung
FR2921394A1 (fr) * 2007-09-20 2009-03-27 Spiraltex Ind Sarl Composant de construction renforce
RU2384676C1 (ru) * 2008-12-26 2010-03-20 Общество с ограниченной ответственностью "Коммерческое научно-производственное объединение "Уральская армирующая компания" Арматура композитная (варианты)
RU2384677C2 (ru) * 2008-04-16 2010-03-20 Общество с ограниченной ответственностью "Коммерческое научно-производственное объединение "Уральская армирующая компания" Арматура композитная (варианты)
US20100093447A1 (en) * 2008-10-09 2010-04-15 Heraeus Helically-wound cable and method
US20100093448A1 (en) * 2008-10-09 2010-04-15 Heraeus Helically-wound cable and method
RU2430220C2 (ru) * 2009-02-09 2011-09-27 Общество с ограниченной ответственностью "Коммерческое научно-производственное объединение "Уральская армирующая компания" Стержень композитный
US20120103174A1 (en) * 2010-10-28 2012-05-03 Asahi Intecc Co., Ltd. Helical toothed rope
US20130318937A1 (en) * 2012-05-31 2013-12-05 Tokyo Rope Manufactuting Co., Ltd. Hybrid core rope

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1563307A (en) * 1924-10-20 1925-11-24 Harry I Klawans Tufting wicking or roving yarn
US2674115A (en) * 1949-06-23 1954-04-06 Grands Travaux De Marseille Sa Flexible pretensioned reinforcement for prestressed structures
FR1141878A (fr) * 1955-06-02 1957-09-11 Protection des câbles et cordages
US3336744A (en) * 1964-10-28 1967-08-22 Trefileries Leon Bekaert S P R Reinforcing cord having two-filament core surrounded by six single filatment units
US3347005A (en) * 1965-02-09 1967-10-17 Cf & I Steel Corp Prestressed concrete members
US3495646A (en) * 1968-02-21 1970-02-17 Owens Corning Fiberglass Corp Reinforcement for vulcanized rubberlike products and method of making same
US3625809A (en) * 1970-02-24 1971-12-07 Owens Corning Fiberglass Corp Filament blend products

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1563307A (en) * 1924-10-20 1925-11-24 Harry I Klawans Tufting wicking or roving yarn
US2674115A (en) * 1949-06-23 1954-04-06 Grands Travaux De Marseille Sa Flexible pretensioned reinforcement for prestressed structures
FR1141878A (fr) * 1955-06-02 1957-09-11 Protection des câbles et cordages
US3336744A (en) * 1964-10-28 1967-08-22 Trefileries Leon Bekaert S P R Reinforcing cord having two-filament core surrounded by six single filatment units
US3347005A (en) * 1965-02-09 1967-10-17 Cf & I Steel Corp Prestressed concrete members
US3495646A (en) * 1968-02-21 1970-02-17 Owens Corning Fiberglass Corp Reinforcement for vulcanized rubberlike products and method of making same
US3625809A (en) * 1970-02-24 1971-12-07 Owens Corning Fiberglass Corp Filament blend products

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916592A (en) * 1969-08-16 1975-11-04 Takashi Morohashi Structural members for buildings and buildings constructed therefrom
US4620401A (en) * 1985-04-26 1986-11-04 Societe Nationale De L'amiante Structural rod for reinforcing concrete material
EP0199348A3 (en) * 1985-04-26 1987-08-26 Societe Nationale De L'amiante Structural rod for reinforcing concrete material
US4789045A (en) * 1987-05-12 1988-12-06 Billy Pugh Co., Inc. Swing rope
EP1437451A1 (fr) * 2003-01-08 2004-07-14 Fontainunion S.A. Elément filaire de renforcement pour béton
BE1015295A3 (fr) * 2003-01-08 2005-01-11 Fontainunion S A Element de renforcement pour beton.
EP1471192A1 (de) * 2003-04-22 2004-10-27 Pfeifer Holding GmbH & Co. KG Betonbauteilverbindungsvorrichtung
FR2921394A1 (fr) * 2007-09-20 2009-03-27 Spiraltex Ind Sarl Composant de construction renforce
RU2384677C2 (ru) * 2008-04-16 2010-03-20 Общество с ограниченной ответственностью "Коммерческое научно-производственное объединение "Уральская армирующая компания" Арматура композитная (варианты)
US20100093447A1 (en) * 2008-10-09 2010-04-15 Heraeus Helically-wound cable and method
US20100093448A1 (en) * 2008-10-09 2010-04-15 Heraeus Helically-wound cable and method
US8117817B2 (en) * 2008-10-09 2012-02-21 W. C. Heraeus Gmbh Helically-wound cable and method
US8250844B2 (en) 2008-10-09 2012-08-28 W. C. Heraeus Gmbh Helically-wound cable and method
RU2384676C1 (ru) * 2008-12-26 2010-03-20 Общество с ограниченной ответственностью "Коммерческое научно-производственное объединение "Уральская армирующая компания" Арматура композитная (варианты)
RU2430220C2 (ru) * 2009-02-09 2011-09-27 Общество с ограниченной ответственностью "Коммерческое научно-производственное объединение "Уральская армирующая компания" Стержень композитный
US20120103174A1 (en) * 2010-10-28 2012-05-03 Asahi Intecc Co., Ltd. Helical toothed rope
CN102465997A (zh) * 2010-10-28 2012-05-23 朝日英达科株式会社 带螺旋状齿的绳索
US8307624B2 (en) * 2010-10-28 2012-11-13 Asahi Intecc Co., Ltd. Helical toothed rope
CN102465997B (zh) * 2010-10-28 2014-11-05 朝日英达科株式会社 带螺旋状齿的绳索
US20130318937A1 (en) * 2012-05-31 2013-12-05 Tokyo Rope Manufactuting Co., Ltd. Hybrid core rope
US8943789B2 (en) * 2012-05-31 2015-02-03 Tokyo Rope Manufacturing Co., Ltd. Hybrid core rope

Also Published As

Publication number Publication date
JPS5030182B1 (enrdf_load_stackoverflow) 1975-09-29

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