EP0095413A3 - Prestressing ducts and methods for their manufacture - Google Patents

Prestressing ducts and methods for their manufacture Download PDF

Info

Publication number
EP0095413A3
EP0095413A3 EP83400993A EP83400993A EP0095413A3 EP 0095413 A3 EP0095413 A3 EP 0095413A3 EP 83400993 A EP83400993 A EP 83400993A EP 83400993 A EP83400993 A EP 83400993A EP 0095413 A3 EP0095413 A3 EP 0095413A3
Authority
EP
European Patent Office
Prior art keywords
manufacture
metal strip
methods
coated
prestressing
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
EP83400993A
Other languages
French (fr)
Other versions
EP0095413B1 (en
EP0095413A2 (en
Inventor
Pierre Jartoux
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.)
Freyssinet International STUP SA
Original Assignee
Freyssinet International STUP SA
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 Freyssinet International STUP SA filed Critical Freyssinet International STUP SA
Priority to AT83400993T priority Critical patent/ATE19280T1/en
Publication of EP0095413A2 publication Critical patent/EP0095413A2/en
Publication of EP0095413A3 publication Critical patent/EP0095413A3/en
Application granted granted Critical
Publication of EP0095413B1 publication Critical patent/EP0095413B1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E04C5/10—Ducts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • B21C37/126—Supply, or operations combined with supply, of strip material

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Ropes Or Cables (AREA)
  • Insulated Conductors (AREA)
  • Duct Arrangements (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

To manufacture a bent prestress conduit (5) adapted to receive without damage cables (7) subjected to extremely high pulling forces, one of the faces of a metal strip (1) is coated intimately with a metal phosphate layer (4) itself covered by a soap and this metal strip is wound in helical form so as to obtain a continuous tube whose inner face is formed by the thus coated face of the metal strip.
EP83400993A 1982-05-21 1983-05-17 Prestressing ducts and methods for their manufacture Expired EP0095413B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83400993T ATE19280T1 (en) 1982-05-21 1983-05-17 PRESTRESS TUBE AND ITS MANUFACTURING PROCESS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8208902A FR2527246A1 (en) 1982-05-21 1982-05-21 IMPROVEMENTS IN PRE-STRESS CONDUITS AND THEIR MANUFACTURING METHODS
FR8208902 1982-05-21

Publications (3)

Publication Number Publication Date
EP0095413A2 EP0095413A2 (en) 1983-11-30
EP0095413A3 true EP0095413A3 (en) 1984-09-12
EP0095413B1 EP0095413B1 (en) 1986-04-16

Family

ID=9274243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83400993A Expired EP0095413B1 (en) 1982-05-21 1983-05-17 Prestressing ducts and methods for their manufacture

Country Status (6)

Country Link
US (1) US4606380A (en)
EP (1) EP0095413B1 (en)
AT (1) ATE19280T1 (en)
DE (1) DE3363027D1 (en)
ES (1) ES279984Y (en)
FR (1) FR2527246A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606803B1 (en) * 1986-11-14 1989-03-03 Freyssinet Int Stup IMPROVEMENTS ON OSCILLATING SUPPORTS FOR HEAVY LOADS
US5087153A (en) 1989-08-23 1992-02-11 Arnco Corporation Internally spiraled duct and method of installation
CH689307A5 (en) * 1995-04-13 1999-02-15 Cement Intellectual Property L Process for both corrosion inhibition and strengthening the bonding properties of reinforcing metals.
GB2358880A (en) * 2000-01-12 2001-08-08 Stuart Ian Jackman Method for reinforcing material
AU2003244171B2 (en) 2002-09-09 2007-11-15 Fisher & Paykel Healthcare Limited Limb for Breathing Circuit
US20080128041A1 (en) * 2006-12-04 2008-06-05 The Lamson & Sessions Co. Duct having silicone inner striping and composition for lubricious stripe coating
FR2968681B1 (en) * 2010-12-08 2015-05-29 Soletanche Freyssinet DEVICE FOR THE DEVIATION OF A STRUCTURED CABLE, SUCH AS A HAUBAN, AND A WORK THUS EQUIPPED

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH99464A (en) * 1921-11-08 1923-06-16 Sechehaye Emile Metal frame for agglomerated body.
DE1103108B (en) * 1955-11-10 1961-03-23 Dr Stefan Klinghoffer Method and device for the pretreatment of wires for the purpose of drawing
FR1587229A (en) * 1968-10-25 1970-03-13
FR2118861A7 (en) * 1970-12-24 1972-08-04 Soc Gen Entreprises
DE2161105A1 (en) * 1971-12-09 1973-06-20 Hoesch Maschinenfabrik Ag PROCESS AND EQUIPMENT FOR MANUFACTURING SCREW SEAM PIPES FROM METAL OR PLASTIC TAPE OR. SHEET METAL WITH AND WITHOUT COATING OR PLATING

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015969A (en) * 1957-03-15 1962-01-09 American Chain & Cable Co Push-pull cable
US3114987A (en) * 1959-06-11 1963-12-24 Span Tendons Ltd Cables for prestressing concrete
US3359822A (en) * 1965-12-13 1967-12-26 John B Hurlow Push-pull cable with plastic lined sheath

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH99464A (en) * 1921-11-08 1923-06-16 Sechehaye Emile Metal frame for agglomerated body.
DE1103108B (en) * 1955-11-10 1961-03-23 Dr Stefan Klinghoffer Method and device for the pretreatment of wires for the purpose of drawing
FR1587229A (en) * 1968-10-25 1970-03-13
FR2118861A7 (en) * 1970-12-24 1972-08-04 Soc Gen Entreprises
DE2161105A1 (en) * 1971-12-09 1973-06-20 Hoesch Maschinenfabrik Ag PROCESS AND EQUIPMENT FOR MANUFACTURING SCREW SEAM PIPES FROM METAL OR PLASTIC TAPE OR. SHEET METAL WITH AND WITHOUT COATING OR PLATING

Also Published As

Publication number Publication date
EP0095413B1 (en) 1986-04-16
FR2527246B1 (en) 1985-01-04
EP0095413A2 (en) 1983-11-30
ES279984Y (en) 1985-06-01
US4606380A (en) 1986-08-19
ATE19280T1 (en) 1986-05-15
FR2527246A1 (en) 1983-11-25
DE3363027D1 (en) 1986-05-22
ES279984U (en) 1984-11-16

Similar Documents

Publication Publication Date Title
DK165580A (en) Method for the manufacture of filler metal for core wire
YU251379A (en) Method of manufacturing extended deforming tubes
IT1122019B (en) METHOD FOR THE PRODUCTION OF HELICALLY WINDED PIPES AND PIPES PRODUCED WITH SUCH METHOD
NZ191733A (en) Pipe end moulding core and moulding method
JPS52114438A (en) Method of fabricating zinc coated steel pipes
IT1110121B (en) METHOD AND APPARATUS FOR THE PRODUCTION OF COMPOSITE PIPES
DE3363027D1 (en) Prestressing ducts and methods for their manufacture
ES8500659A1 (en) Manufacturing process for a low loss optical fiber cable
JPS5588211A (en) Method of fabricating lubricated insulated wire
JPS5320578A (en) Multi-core cable
IT1127783B (en) METHOD FOR THE MANUFACTURE OF SEAMLESS METAL PIPES
GB2039808B (en) Method and installation for manufacturing multilayer pipes
GB2012200B (en) Apparatus for precutting metal strip in the manufacture of spiral strip pipes eg ventilation ducts
IT1193483B (en) METHOD OF MANUFACTURE OF A CATHODE-TUBE AND CATHODE-TUBE MANUFACTURED WITH THE AID OF THIS METHOD
JPS52140460A (en) Method of fabricating multistage pipes having different diameters
JPS5759726A (en) Strip plate for forming pipe, method and apparatus for preparing the same
JPS57132606A (en) Method of producing coated wire removed with end coating
JPS51112471A (en) Method of forming metal pipe with different diameter section
JPS52122240A (en) Method of fabricating flanged pipes
JPS5353566A (en) Method of fabricating grooved pipe
JPS5532324A (en) Method of manufacturing multilayer smooth body steel core aluminum twisted wire
JPS531165A (en) Method of fabricating tapered pipe having curved portion
JPS5546232A (en) Method of fabricating multilayer composite deformed yarn
JPS5657208A (en) Method of manufacturing flat cable with hose
JPS57157206A (en) Optical cable

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19841105

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 19280

Country of ref document: AT

Date of ref document: 19860515

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: ING. C. GREGORJ S.P.A.

REF Corresponds to:

Ref document number: 3363027

Country of ref document: DE

Date of ref document: 19860522

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19930426

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19930511

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19930512

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19930524

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19930527

Year of fee payment: 11

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19930531

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19930614

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19930615

Year of fee payment: 11

EPTA Lu: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19940517

Ref country code: GB

Effective date: 19940517

Ref country code: AT

Effective date: 19940517

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19940518

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19940531

Ref country code: CH

Effective date: 19940531

Ref country code: BE

Effective date: 19940531

BERE Be: lapsed

Owner name: FREYSSINET INTERNATIONAL STUP

Effective date: 19940531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19941201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19940517

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
EUG Se: european patent has lapsed

Ref document number: 83400993.8

Effective date: 19941210

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19950201

EUG Se: european patent has lapsed

Ref document number: 83400993.8