EP0777020B1 - Elément de précontrainte en forme de ruban - Google Patents

Elément de précontrainte en forme de ruban Download PDF

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Publication number
EP0777020B1
EP0777020B1 EP96890159A EP96890159A EP0777020B1 EP 0777020 B1 EP0777020 B1 EP 0777020B1 EP 96890159 A EP96890159 A EP 96890159A EP 96890159 A EP96890159 A EP 96890159A EP 0777020 B1 EP0777020 B1 EP 0777020B1
Authority
EP
European Patent Office
Prior art keywords
jacket
band
strands
mono
element according
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 - Lifetime
Application number
EP96890159A
Other languages
German (de)
English (en)
Other versions
EP0777020A1 (fr
Inventor
Hermann Dipl.-Ing. Thal
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0777020A1 publication Critical patent/EP0777020A1/fr
Application granted granted Critical
Publication of EP0777020B1 publication Critical patent/EP0777020B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables

Definitions

  • the invention relates to a band-shaped biasing element according to the preamble of claim 1.
  • Biasing elements of this type are described in EP-A-0 393 013 A1 and EP-A-0 505 351 A1. These pretensioners consist of bundles running parallel to each other Tendons, each bundle with a coating of fat and plastic sheathing is enclosed and, if necessary, also side by side to form a volume can. The manufacturing process of such prestressing elements was complex and did not produce any disquieting results.
  • the invention has for its object a band-shaped biasing element to create which while avoiding the listed Disadvantages of the known biasing elements simply in the manufacture, has a high load capacity and without Difficulties can be wound on a drum and compared to manufacture the known methods much cheaper is.
  • Monostrands are a corrosion-protected tendon with a single strand, which with fat and a Plastic jacket is enclosed. They are traded at the factory manufactured and bring the advantage that the delicate Corrosion protection of the strands is already made in the factory.
  • the band-shaped biasing element according to the invention thus offers in practice a double protection against corrosion, namely on the one hand by using a monostrand, which is a own plastic coating and on the other hand through the common sheathing of the put together into a band Monostrand.
  • the measure according to claim 8 prevents the eventual Extrude the second sheath to weld the two Coats done.
  • a lubricant for example, can be used as a release agent or talc can be used.
  • a monostrand 1 consists, as shown in FIGS. 1 and 2, of a central wire 3, which is surrounded by a ring, preferably six wires 3 ' is. This bundle of wires forms a strand, which is greased and enclosed by a plastic jacket 4.
  • a gusset-shaped cavity 5 Between each two adjacent monostrands 1 of the band-shaped there is a gusset-shaped cavity 5, which at most with a filling material, e.g. Cement, talc or the like. can be filled in, which also in the corners of the essentially rectangular plastic jacket 2 available is.
  • a filling material e.g. Cement, talc or the like.
  • two rows of monostrands 1 are provided, which lie on top of each other.
  • the number the monostrands next to or on top of each other his. So there is the possibility of only two or three or to arrange more than four monostrands side by side. Also the rows of strands on top of each other can be any be executed.
  • the inner Plastic jacket can be formed as a release film, which e.g. has a thickness of 1.5 mm, the outer Plastic sheath e.g. have a double thickness of 3 mm can.
  • the release film itself or in connection with one Release agent applied over it prevents that during extrusion welding of the outer jacket Sheath with the outer sheaths of the monostrands.
  • the band-shaped biasing element 6 is the one enclosing the monostrands 1 together Sheath 2 at the ends of the tape, preferably rounded off in a semicircle and engages around the end monostrand 1 'or 1 " In this embodiment there are spaces between the monostrands 6 available. In the embodiment according to FIG. 6 the monostrands are spaced from each other, while the monostrands 1 in the embodiment of FIG. 7 of the drawing Fit man to man and form gusset 5 in between. In both Cases are the ends of the band-shaped biasing element surrounded by the common shell 2 in a semicircle.
  • any other way of applying the monostrands 1 jointly enclosing jacket 2 can be made.
  • two half-shell-shaped coats preferably made of thermoplastic material, which in the warm state on the mono strand row to both Lay on sides and end, i.e. at the joints, welded become.
  • thermoplastic material which in the warm condition bent over the row of monostrands and at the end the collapsing ends of the tape by one to connect only weld.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Cable Accessories (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Ropes Or Cables (AREA)
  • Insulated Conductors (AREA)

Claims (8)

  1. Elément de précontrainte en forme de bande, constitué par plusieurs organes de serrage qui sont parallèles entre eux, sont gainés d'une matière plastique et sont entourés par une enveloppe commune formée d'une matière plastique, caractérisé en ce qu'il est prévu comme organes de serrage, des torons individuels (1) comprenant chacun un seul toron enveloppé d'une couche de graisse et d'une gaine en matière plastique sont prévus en tant qu'organes de serrage et sont disposés de façon lâche les uns à côté des autres, dans au moins un plan, dans l'enveloppe (2) qui les enveloppe conjointement.
  2. Elément de précontrainte en forme de bande selon la revendication 1, caractérisé en ce que les torons individuels (1) sont juxtaposés de façon dense.
  3. Elément de précontrainte en forme de bande selon la revendication 1, caractérisé en ce qu'un espace intercalaire (6) est prévu entre les torons individuels (1).
  4. Elément de précontrainte en forme de bande selon la revendication 1, caractérisé en ce qu'un espace intercalaire est prévu entre les torons individuels (1) et l'enveloppe (2) qui les entoure.
  5. Elément de précontrainte en forme de bande selon la revendication 4, caractérisé en ce que les espaces intercalaires à l'intérieur de l'enveloppe (2), par exemple des interstices extérieurs (5) entre les torons individuels (1) et l'enveloppe (2), qui les entoure, sont remplis, par exemple du ciment étant prévu comme milieu de remplissage.
  6. Élément de précontrainte en forme de bande selon au moins l'une des revendications précédentes, caractérisé en ce que les extrémités de l'enveloppe (2), qui entoure les torons individuels (1), sont arrondies, côté extrémité, de préférence avec une forme semi-circulaire.
  7. Elément de précontrainte en forme de bande selon la revendication 2, caractérisé en ce que les torons individuels (1) sont disposés dans au moins une couche et forment, avec l'enveloppe (2) qui les entoure conjointement, une bande rectangulaire.
  8. Elément de précontrainte en forme de bande selon la revendication 1 ou 2, caractérisé en ce que l'enveloppe (2), qui entoure les torons individuels (1), est entourée par une seconde enveloppe formée d'une matière plastique, un milieu de séparation étant présent entre les deux enveloppes et que l'enveloppe intérieure est agencée sous la forme d'une feuille de séparation (2').
EP96890159A 1995-11-30 1996-10-08 Elément de précontrainte en forme de ruban Expired - Lifetime EP0777020B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT195695 1995-11-30
AT0195695A AT402745B (de) 1995-11-30 1995-11-30 Bandförmiges vorspannelement
AT1956/95 1995-11-30

Publications (2)

Publication Number Publication Date
EP0777020A1 EP0777020A1 (fr) 1997-06-04
EP0777020B1 true EP0777020B1 (fr) 2002-08-21

Family

ID=3524688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96890159A Expired - Lifetime EP0777020B1 (fr) 1995-11-30 1996-10-08 Elément de précontrainte en forme de ruban

Country Status (3)

Country Link
EP (1) EP0777020B1 (fr)
AT (2) AT402745B (fr)
DE (1) DE59609572D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2034103A1 (fr) 2007-09-10 2009-03-11 Hermann Thal Elément de précontrainte en forme de bande

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19711002C2 (de) * 1997-03-17 1999-12-30 Suspa Spannbeton Gmbh Vorgefertigtes Zugglied, insbesondere als Umfangsspannglied für Großbehälter aus Beton
EP0990744A1 (fr) * 1998-10-02 2000-04-05 Hermann Dipl.-Ing. Thal Elément de tension
DE10009243B4 (de) * 1999-03-03 2007-08-16 Bilfinger Berger Ag Verfahren zum Herstellen eines Zugglieds
AT410337B (de) * 2000-06-15 2003-03-25 Thal Hermann Dipl Ing Umhüllung von vorspannelementen
DE102006030069A1 (de) * 2006-06-28 2008-01-03 Kamphues, Andreas, Dipl.-Ing. Spannglied und Verfahren zur Herstellung desselben
CN104452373A (zh) * 2014-11-26 2015-03-25 胡国良 曳力绳与曳力绳制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3513609A (en) * 1968-03-13 1970-05-26 Du Pont Tendons for post-tensioned concrete construction
EP0393013B2 (fr) * 1989-04-12 1997-06-25 Vorspann-Technik Gesellschaft m.b.H. Faisceau d'élément de tension constitué de membres de contrainte
AT400736B (de) * 1991-03-19 1996-03-25 Vorspann Technik Gmbh Spannbündel für vorgespannte tragwerke aus beton

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2034103A1 (fr) 2007-09-10 2009-03-11 Hermann Thal Elément de précontrainte en forme de bande

Also Published As

Publication number Publication date
AT402745B (de) 1997-08-25
ATE222632T1 (de) 2002-09-15
ATA195695A (de) 1996-12-15
EP0777020A1 (fr) 1997-06-04
DE59609572D1 (de) 2002-09-26

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