GB1394362A - Pre-stressing tendon - Google Patents

Pre-stressing tendon

Info

Publication number
GB1394362A
GB1394362A GB1349971A GB1349971A GB1394362A GB 1394362 A GB1394362 A GB 1394362A GB 1349971 A GB1349971 A GB 1349971A GB 1349971 A GB1349971 A GB 1349971A GB 1394362 A GB1394362 A GB 1394362A
Authority
GB
United Kingdom
Prior art keywords
tendon
wires
sheath
king wire
grease
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
Application number
GB1349971A
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.)
JOHNSON FIRTH BROWN Ltd
Original Assignee
JOHNSON FIRTH BROWN 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
Application filed by JOHNSON FIRTH BROWN Ltd filed Critical JOHNSON FIRTH BROWN Ltd
Priority to GB1349971A priority Critical patent/GB1394362A/en
Publication of GB1394362A publication Critical patent/GB1394362A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • D07B1/162—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber enveloping sheathing
    • 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
    • D07B1/141—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising liquid, pasty or powder agents, e.g. lubricants or anti-corrosive oils or greases
    • D07B1/144—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising liquid, pasty or powder agents, e.g. lubricants or anti-corrosive oils or greases for cables or cable components built-up from metal wires
    • 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
    • D07B5/002—Making parallel wire strands
    • 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
    • D07B5/007—Making ropes or cables from special materials or of particular form comprising postformed and thereby radially plastically deformed elements
    • 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
    • D07B7/12—Machine details; Auxiliary devices for softening, lubricating or impregnating ropes, cables, or component strands thereof
    • 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
    • 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
    • D07B2201/2002—Wires or filaments characterised by their cross-sectional 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
    • D07B2201/2001—Wires or filaments
    • D07B2201/2002—Wires or filaments characterised by their cross-sectional shape
    • D07B2201/2004—Wires or filaments characterised by their cross-sectional shape triangular
    • 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
    • D07B2201/2019—Strands pressed to 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
    • D07B2201/2033—Parallel wires
    • 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
    • D07B2201/2042—Strands characterised by a coating
    • D07B2201/2044—Strands characterised by a coating comprising polymers
    • 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
    • D07B2201/2047—Cores
    • D07B2201/2048—Cores characterised by their cross-sectional shape
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ropes Or Cables (AREA)

Abstract

1394362 Pre-stressing tendon JOHNSON & FIRTH BROWN Ltd 17 April 1972 [6 May 1971] 13499/71 Heading D1T [Also in Division El] A pre-stressing tendon comprises hot strained wires or pre-straightehed and heat treated wires which have been placed parallel to one another, treated with grease and enclosed in a sheath of plastics material. Wires 1 are passed in parallel formation through die plate 2 to a closing die 4. Grease is applied at 3 and 5, and the greased wires are extrusion coated with a plastics sheath at 6. The tendon may be twisted during take-up. The sheath may be of polyethylene, polypropylene, polypropylene/polyethylene copolymer, or polyvinyl chloride. The sheath may be applied by wrapping and heat sealing. The tendon may comprise a king wire and one or more surrounding layers of wires whose dimensions are such that the king wire is clamped when the tendon is gripped. The tendon may comprise wires of polygonal or circular cross-section surrounding a king wire of polygonal or circular cross-section.
GB1349971A 1971-05-06 1971-05-06 Pre-stressing tendon Expired GB1394362A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1349971A GB1394362A (en) 1971-05-06 1971-05-06 Pre-stressing tendon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1349971A GB1394362A (en) 1971-05-06 1971-05-06 Pre-stressing tendon

Publications (1)

Publication Number Publication Date
GB1394362A true GB1394362A (en) 1975-05-14

Family

ID=10024086

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1349971A Expired GB1394362A (en) 1971-05-06 1971-05-06 Pre-stressing tendon

Country Status (1)

Country Link
GB (1) GB1394362A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2579236A1 (en) * 1985-03-19 1986-09-26 Elf France Prefabricated prestressing cable and method for its manufacture
EP0505351A1 (en) * 1991-03-19 1992-09-23 Vorspann-Technik Gesellschaft m.b.H. Tensioning strand for prestressed concrete structures
AT409145B (en) * 2000-06-29 2002-05-27 Voest Alpine Austria Draht Sheathed rope wire
US6470636B1 (en) * 2000-08-07 2002-10-29 Dallas R. Rose Detensioning apparatus for releasing a chuck on a prestressed strand
CN105649340A (en) * 2015-12-30 2016-06-08 宁波冶金勘察设计研究股份有限公司 Carding positioner for allowing prestressed tendons to penetrate in embedded pipe and construction method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2579236A1 (en) * 1985-03-19 1986-09-26 Elf France Prefabricated prestressing cable and method for its manufacture
EP0505351A1 (en) * 1991-03-19 1992-09-23 Vorspann-Technik Gesellschaft m.b.H. Tensioning strand for prestressed concrete structures
AT409145B (en) * 2000-06-29 2002-05-27 Voest Alpine Austria Draht Sheathed rope wire
US6470636B1 (en) * 2000-08-07 2002-10-29 Dallas R. Rose Detensioning apparatus for releasing a chuck on a prestressed strand
CN105649340A (en) * 2015-12-30 2016-06-08 宁波冶金勘察设计研究股份有限公司 Carding positioner for allowing prestressed tendons to penetrate in embedded pipe and construction method thereof
CN105649340B (en) * 2015-12-30 2018-04-20 宁波冶金勘察设计研究股份有限公司 The combing locator and its construction method of presstressed reinforcing steel lashing in built-in pipe

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee