GB1394362A - Pre-stressing tendon - Google Patents
Pre-stressing tendonInfo
- 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
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.
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)
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 |
-
1971
- 1971-05-06 GB GB1349971A patent/GB1394362A/en not_active Expired
Cited By (6)
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 |