EP0095413A2 - Vorspannhüllrohr und dessen Herstellungsverfahren - Google Patents
Vorspannhüllrohr und dessen Herstellungsverfahren Download PDFInfo
- Publication number
- EP0095413A2 EP0095413A2 EP83400993A EP83400993A EP0095413A2 EP 0095413 A2 EP0095413 A2 EP 0095413A2 EP 83400993 A EP83400993 A EP 83400993A EP 83400993 A EP83400993 A EP 83400993A EP 0095413 A2 EP0095413 A2 EP 0095413A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- sheath
- prestressing
- cables
- face
- 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
Links
Images
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
Definitions
- the invention relates to metal sheaths intended to be embedded in concrete structures and to receive the prestressing cables of these structures, cables which are put in tension with a bearing on said structures at the ends of said sheaths.
- the preliminary phosphating and soaping treatments in question are hardly applicable to interior surfaces of tubes or sheaths.
- the invention is essentially characterized in that the said phosphating and soaping treatments, known per se for the external surfaces of wire to be drawn, are applied to at least one of the two faces of such a strip, after which coils this strip in a helix so as to form a sheath whose face treated above constitutes the inner face.
- the invention includes, apart from this main arrangement, certain other arrangements which are preferably used at the same time and which will be more explicitly discussed below.
- a mild steel strip 1 is used which is deformed according to longitudinal undulations, that is to say having a corrugated cross section with ridges 2 and hollow 3.
- At least the face, of the strip 1, intended to become the inner face of the sheath, is subjected to a chemical treatment known in itself leading to the intimate bonding, on this face, of a phosphate layer externally coated with a veil of gelled soap.
- the above phosphating bath could be an aqueous solution at 6% by volume of the liquid distributed by the Compagnie füre de Produits Industriels (CFPI) under the name THERMOGRANODINE 63, the soap then being itself even consisting of an aqueous solution of the powder distributed by said company CFPI under the name PROLUB.
- CFPI Compagnie füre de Produits Industriels
- This coating 4 is recognizable by its matt state, its light gray color and its creamy feel, pronounced of that of Marseille soap.
- This strip is then wound around a helix so as to form a tubular sheath 5 of which said treated face constitutes the internal face.
- This winding is carried out with lateral overlapping of the contiguous turns of the propeller so that the ridges 2 form external helical ribs and the hollows 3, helical grooves each connecting two of these ribs.
- the sheath 5 thus obtained is easy to bend according to the needs of the prestress.
- FIG. 1 shows the concrete structure 6 in which such a curved sheath 5 has been embedded, as well as one of the prestressing cables 7 placed in this sheath 5, a cable subjected to a force of traction F exerted between its two ends.
- This cable 7 is preferably constituted, as illustrated, by a plurality of wires or strands 8 wound helically around another wire 9 constituting a central core.
- the volume inside the sheath between the cables and the inner surface of this sheath is filled with an injected grout or a protective grease (not shown) in the manner usual.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Ropes Or Cables (AREA)
- Insulated Conductors (AREA)
- Duct Arrangements (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Reinforcement Elements For Buildings (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT83400993T ATE19280T1 (de) | 1982-05-21 | 1983-05-17 | Vorspannhuellrohr und dessen herstellungsverfahren. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8208902 | 1982-05-21 | ||
FR8208902A FR2527246A1 (fr) | 1982-05-21 | 1982-05-21 | Perfectionnements aux gaines de precontrainte et a leurs procedes de fabrication |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0095413A2 true EP0095413A2 (de) | 1983-11-30 |
EP0095413A3 EP0095413A3 (en) | 1984-09-12 |
EP0095413B1 EP0095413B1 (de) | 1986-04-16 |
Family
ID=9274243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83400993A Expired EP0095413B1 (de) | 1982-05-21 | 1983-05-17 | Vorspannhüllrohr und dessen Herstellungsverfahren |
Country Status (6)
Country | Link |
---|---|
US (1) | US4606380A (de) |
EP (1) | EP0095413B1 (de) |
AT (1) | ATE19280T1 (de) |
DE (1) | DE3363027D1 (de) |
ES (1) | ES279984Y (de) |
FR (1) | FR2527246A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2606803A1 (fr) * | 1986-11-14 | 1988-05-20 | Freyssinet Int Stup | Perfectionnements aux supports oscillants pour charges lourdes |
WO1996032522A1 (de) * | 1995-04-13 | 1996-10-17 | Holderchem Holding Ag | Korrosionsinhibierung und verbesserung der verbundeigenschaften von armierungsmetallen |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5087153A (en) | 1989-08-23 | 1992-02-11 | Arnco Corporation | Internally spiraled duct and method of installation |
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 (fr) * | 2010-12-08 | 2015-05-29 | Soletanche Freyssinet | Dispositif de deviation d'un cable de structure tel qu'un hauban, et ouvrage ainsi equipe |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH99464A (fr) * | 1921-11-08 | 1923-06-16 | Sechehaye Emile | Armature métallique pour corps en matière agglomérée. |
DE1103108B (de) * | 1955-11-10 | 1961-03-23 | Dr Stefan Klinghoffer | Verfahren und Vorrichtung zur Vorbehandlung von Draehten zum Zwecke des Ziehens |
FR1587229A (de) * | 1968-10-25 | 1970-03-13 | ||
FR2118861A7 (de) * | 1970-12-24 | 1972-08-04 | Soc Gen Entreprises | |
DE2161105A1 (de) * | 1971-12-09 | 1973-06-20 | Hoesch Maschinenfabrik Ag | Verfahren und einrichtung zum herstellen von schraubennahtrohren aus metall- oder kunststoffband bzw. blech mit und ohne beschichtung oder plattierung |
Family Cites Families (3)
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 |
-
1982
- 1982-05-21 FR FR8208902A patent/FR2527246A1/fr active Granted
-
1983
- 1983-05-17 AT AT83400993T patent/ATE19280T1/de active
- 1983-05-17 EP EP83400993A patent/EP0095413B1/de not_active Expired
- 1983-05-17 DE DE8383400993T patent/DE3363027D1/de not_active Expired
- 1983-05-18 ES ES1983279984U patent/ES279984Y/es not_active Expired
-
1985
- 1985-06-04 US US06/741,037 patent/US4606380A/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH99464A (fr) * | 1921-11-08 | 1923-06-16 | Sechehaye Emile | Armature métallique pour corps en matière agglomérée. |
DE1103108B (de) * | 1955-11-10 | 1961-03-23 | Dr Stefan Klinghoffer | Verfahren und Vorrichtung zur Vorbehandlung von Draehten zum Zwecke des Ziehens |
FR1587229A (de) * | 1968-10-25 | 1970-03-13 | ||
FR2118861A7 (de) * | 1970-12-24 | 1972-08-04 | Soc Gen Entreprises | |
DE2161105A1 (de) * | 1971-12-09 | 1973-06-20 | Hoesch Maschinenfabrik Ag | Verfahren und einrichtung zum herstellen von schraubennahtrohren aus metall- oder kunststoffband bzw. blech mit und ohne beschichtung oder plattierung |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2606803A1 (fr) * | 1986-11-14 | 1988-05-20 | Freyssinet Int Stup | Perfectionnements aux supports oscillants pour charges lourdes |
EP0268529A1 (de) * | 1986-11-14 | 1988-05-25 | Freyssinet International (Stup) | Oszillierende Lager für schwere Lasten |
WO1996032522A1 (de) * | 1995-04-13 | 1996-10-17 | Holderchem Holding Ag | Korrosionsinhibierung und verbesserung der verbundeigenschaften von armierungsmetallen |
Also Published As
Publication number | Publication date |
---|---|
FR2527246A1 (fr) | 1983-11-25 |
EP0095413B1 (de) | 1986-04-16 |
FR2527246B1 (de) | 1985-01-04 |
DE3363027D1 (en) | 1986-05-22 |
US4606380A (en) | 1986-08-19 |
ATE19280T1 (de) | 1986-05-15 |
ES279984Y (es) | 1985-06-01 |
EP0095413A3 (en) | 1984-09-12 |
ES279984U (es) | 1984-11-16 |
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