EP0078564A3 - Prestressing strand for concrete structures and concrete structures containing such strand - Google Patents

Prestressing strand for concrete structures and concrete structures containing such strand Download PDF

Info

Publication number
EP0078564A3
EP0078564A3 EP82201303A EP82201303A EP0078564A3 EP 0078564 A3 EP0078564 A3 EP 0078564A3 EP 82201303 A EP82201303 A EP 82201303A EP 82201303 A EP82201303 A EP 82201303A EP 0078564 A3 EP0078564 A3 EP 0078564A3
Authority
EP
European Patent Office
Prior art keywords
strand
concrete structures
wires
prestressing
core
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.)
Granted
Application number
EP82201303A
Other versions
EP0078564B1 (en
EP0078564A2 (en
Inventor
Karl Gustav Bernander
Bruno Hauzenberger
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.)
ESTEL NEDERLANDSE DRAADINDUSTRIE BV
Original Assignee
ESTEL NEDERLANDSE DRAADINDUSTRIE BV
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 ESTEL NEDERLANDSE DRAADINDUSTRIE BV filed Critical ESTEL NEDERLANDSE DRAADINDUSTRIE BV
Priority to AT82201303T priority Critical patent/ATE28913T1/en
Publication of EP0078564A2 publication Critical patent/EP0078564A2/en
Publication of EP0078564A3 publication Critical patent/EP0078564A3/en
Application granted granted Critical
Publication of EP0078564B1 publication Critical patent/EP0078564B1/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
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0693—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a strand 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
    • E04C5/08—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
    • D07B2201/2047—Cores
    • D07B2201/2052—Cores characterised by their structure
    • D07B2201/2059—Cores characterised by their structure comprising 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
    • D07B2201/2047—Cores
    • D07B2201/2052—Cores characterised by their structure
    • D07B2201/2065—Cores characterised by their structure comprising a coating
    • 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
    • D07B2401/205—Avoiding relative movement of components
    • 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)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ropes Or Cables (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Reinforced Plastic Materials (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Paper (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

In a prestressing strand for use in stressing a concrete structure, having one or more central core wires and a plurality of outer wires extending helically around the core wire the surface of at least the core wires is modified in order to increase the friction resistance to relative movement between the core wire and the outer wires. This strand is found to give more accurate stressing, where the conduit in the concrete for the tensioned wire is curved. The outer wires may also have modified surtaces. The modification may be mechanical indentations or surface conditioning treatment such as oxidation, etching, coating or deposition.
EP82201303A 1981-11-02 1982-10-20 Prestressing strand for concrete structures and concrete structures containing such strand Expired EP0078564B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82201303T ATE28913T1 (en) 1981-11-02 1982-10-20 PRE-STRESSING CABLE FOR CONCRETE STRUCTURES AND CONCRETE STRUCTURES WITH SUCH CABLE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH696681 1981-11-02
CH6966/81 1981-11-02

Publications (3)

Publication Number Publication Date
EP0078564A2 EP0078564A2 (en) 1983-05-11
EP0078564A3 true EP0078564A3 (en) 1984-05-23
EP0078564B1 EP0078564B1 (en) 1987-08-12

Family

ID=4317835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82201303A Expired EP0078564B1 (en) 1981-11-02 1982-10-20 Prestressing strand for concrete structures and concrete structures containing such strand

Country Status (6)

Country Link
EP (1) EP0078564B1 (en)
AT (1) ATE28913T1 (en)
DE (1) DE3276952D1 (en)
ES (2) ES8500372A1 (en)
FI (1) FI72370C (en)
NO (1) NO165122C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA837766B (en) * 1982-10-28 1984-09-26 Florida Wire & Cable Concrete strengthening members and methods relating thereto
JP5172028B1 (en) * 2012-04-12 2013-03-27 黒沢建設株式会社 Double rust prevention PC steel strand

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1284364A (en) * 1960-03-21 1962-02-09 Tyler Wayne Res Corp Stranded wire strand and method of treating wire
GB1078184A (en) * 1964-05-19 1967-08-02 Halmstads Jaernverks Ab Improvements relating to the production of a rough corrosionresistant surface on iron re-inforcing material
GB1135491A (en) * 1965-01-02 1968-12-04 Intercontinentale Technik Ges A prestressing element
GB1194758A (en) * 1967-10-04 1970-06-10 Westfalische Drahtindustrie Prestressed-Concrete Wire Strand
US3755003A (en) * 1970-07-24 1973-08-28 Diamond Shamrock Corp Method of preparing and using concrete reinforcing elements

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1284364A (en) * 1960-03-21 1962-02-09 Tyler Wayne Res Corp Stranded wire strand and method of treating wire
GB1078184A (en) * 1964-05-19 1967-08-02 Halmstads Jaernverks Ab Improvements relating to the production of a rough corrosionresistant surface on iron re-inforcing material
GB1135491A (en) * 1965-01-02 1968-12-04 Intercontinentale Technik Ges A prestressing element
GB1194758A (en) * 1967-10-04 1970-06-10 Westfalische Drahtindustrie Prestressed-Concrete Wire Strand
US3755003A (en) * 1970-07-24 1973-08-28 Diamond Shamrock Corp Method of preparing and using concrete reinforcing elements

Also Published As

Publication number Publication date
EP0078564B1 (en) 1987-08-12
ES516971A0 (en) 1984-10-01
FI72370C (en) 1987-05-11
DE3276952D1 (en) 1987-09-17
ES8500372A1 (en) 1984-10-01
NO165122B (en) 1990-09-17
FI823701A0 (en) 1982-10-29
NO165122C (en) 1990-12-27
FI823701L (en) 1983-05-03
ATE28913T1 (en) 1987-08-15
FI72370B (en) 1987-01-30
NO823616L (en) 1983-05-03
ES271531U (en) 1983-10-16
EP0078564A2 (en) 1983-05-11

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