EP0393013B2 - Faisceau d'élément de tension constitué de membres de contrainte - Google Patents

Faisceau d'élément de tension constitué de membres de contrainte Download PDF

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Publication number
EP0393013B2
EP0393013B2 EP90890090A EP90890090A EP0393013B2 EP 0393013 B2 EP0393013 B2 EP 0393013B2 EP 90890090 A EP90890090 A EP 90890090A EP 90890090 A EP90890090 A EP 90890090A EP 0393013 B2 EP0393013 B2 EP 0393013B2
Authority
EP
European Patent Office
Prior art keywords
strands
casing
plastic
tensioning
bundle
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
EP90890090A
Other languages
German (de)
English (en)
Other versions
EP0393013A1 (fr
EP0393013B1 (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.)
Vorspann Technik GmbH
Original Assignee
Vorspann Technik GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25594134&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0393013(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from AT86389A external-priority patent/AT409280B/de
Priority claimed from AT0138389A external-priority patent/AT404956B/de
Application filed by Vorspann Technik GmbH filed Critical Vorspann Technik GmbH
Publication of EP0393013A1 publication Critical patent/EP0393013A1/fr
Application granted granted Critical
Publication of EP0393013B1 publication Critical patent/EP0393013B1/fr
Publication of EP0393013B2 publication Critical patent/EP0393013B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/22—Flat or flat-sided ropes; Sets of ropes consisting of a series of parallel ropes
    • 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
    • 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
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D07B1/165—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay
    • 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
    • D07B2201/10—Rope or cable structures
    • D07B2201/1004—General structure or appearance
    • D07B2201/1008—Several parallel ropes
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/10—Rope or cable structures
    • D07B2201/1092—Parallel strands
    • 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
    • D07B2201/2052—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
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2083—Jackets or coverings
    • D07B2201/2087—Jackets or coverings being of the coated type
    • 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
    • D07B2201/2083—Jackets or coverings
    • D07B2201/2088—Jackets or coverings having multiple layers
    • 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
    • D07B2201/2083—Jackets or coverings
    • D07B2201/2091—Jackets or coverings being movable relative to the internal structure
    • 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
    • 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
    • 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
    • D07B2501/203—Bridges
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
    • Y10T428/2931—Fibers or filaments nonconcentric [e.g., side-by-side or eccentric, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2938—Coating on discrete and individual rods, strands or filaments
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y10T428/2942—Plural coatings
    • Y10T428/2947—Synthetic resin or polymer in plural coatings, each of different type

Definitions

  • the invention relates to a tension bundle according to the preamble of patent claim 1.
  • this document shows a bundle of wires running parallel to one another, which are individually sheathed in plastic. These sheathed wires are replaced by a second one Plastic cover held together in band form, but remain within this second cover loosely placed single tendons without a direct connection to each other.
  • tendons made of rods, wires or strands were guided individually or bundled in cladding tubes made of sheet metal or plastic, with the cavity between the tendons and the cladding tube being filled by means of cement or so-called permanent plastic masses by pressing in the filler material before or after tensioning the tendons.
  • the tendons were anchored at the ends and tensioned. They can be placed inside a structure or outside; in the latter case, the cladding tube itself must also be made of corrosion-resistant material.
  • a tension member which consists of steel ropes, a parallel wire or parallel strand bundle with a plastic sheath.
  • This plastic sheathing results in a largely round surface of the bundle and the plastic can also fill the cavities between the individual wires or strands.
  • strands would be in the compact Plastic matrix of WO88 / 09847 is not movable, since the plastic fills all cavities - ie also the surface structures of strands.
  • the object of the invention is to provide measures by which, while avoiding the above disadvantages, the smallest possible space requirement for the corrosion-protected tensioning bundle is achieved and the tensioning members can also be tensioned individually or jointly and can be moved within the casing in order to be relative to the other tendons as well Coat to be able to change their position or length. Touching or rubbing of the tendons should be avoided, i.e. that an orderly configuration should be maintained under all circumstances and over the entire course of the tension bundle.
  • This object is achieved by the characterizing features of patent claim 1.
  • This solution has the advantage that the sheath has penetrated between the strands - with their higher elasticity and their smaller diameter with the same pretensioning force - and thus keeps them in a predetermined configuration at a distance that prevents mutual contact - and thus also friction.
  • the surface structures of the strands are not filled with the material of the plastic sheath, so that the full flexibility of the strands in the sheath - and thus the independent tensionability of the individual tendons, which is not impeded by friction losses - is preserved.
  • the strands are individually greased. As a result, the relative mobility to one another can be guaranteed even with the closest arrangement.
  • the sheath containing all the strands advantageously has at least one essentially flat surface, preferably two mutually parallel, essentially flat surfaces. This significantly simplifies the combination of several tendons according to the invention.
  • the sheath is provided with at least one further sheathing made of plastic, which fits tightly on the outside of the sheath. This can compensate for deviations in the outline of the inner shell.
  • the further casing can combine homogeneously with the first casing, so that a one-piece casing is produced.
  • an inner sheath made of a soft plastic and an outer sheath made of a harder plastic are provided.
  • a layer of a lubricant is advantageously provided between at least two sheathing according to a further feature of the invention.
  • each plastic sheath consists of extruded material, which makes it particularly easy and economical to manufacture.
  • Hiebei is shown in FIGS. 1 to 3 and 5 to 9, only one strand, while the other strands are simply indicated by a circle.
  • a known strand bundle is shown. This consists of individual strands 1, which are each provided with a plastic sheath 2. In the example shown, six such strands 1 are arranged parallel to one another around a central strand 1 '. Such a strand bundle requires a relatively large accommodation space when used as a prestressed strand bundle due to the sheath 2 applied separately to each strand 1 or 1 '.
  • the bundle shown in cross section in Fig. 2 has strands running parallel to each other, as is provided according to the invention, and is together with preferably soft plastic e.g. Polyethylene, has been extrusion-coated using an extruder, the plastic 3 both forming a coating and penetrating into the spaces between the strands 1.
  • the strands can be dry before the sheathing with the soft plastic, but they can also, as shown, be provided with a coating 4 made of fat, a hard plastic or by galvanic application, which serves as corrosion protection. This coating can also fill the inner spaces between the tendons, especially if it is made of fat.
  • the bundle of strands 1 running in parallel is enclosed by a two-layer jacket or by two concentric jackets 3, 5.
  • the sheathing is preferably carried out in two stages with two extruders. Hiebei it is advisable to fill the space between the strands 1 in such a way that the distance between the strands is greater than in the final state, the plastic also penetrating into the space between the inner strand and the surrounding strands, whereupon the strands are squeezed together so that the smallest possible diameter of the sheathed bundle is achieved.
  • the outer plastic sheathing 5 is applied, so that a round sheathed bundle is formed.
  • the two plastics can be chosen as desired, depending on the desired property of the coated bundle. There is the possibility of producing both shells from the same plastic or the inner sheath 3 from softer plastic than the outer sheath 5. This process is preferably carried out by successive extrusions of two extruders connected in series.
  • the inner casing can be made of a harder plastic than the outer casing.
  • a lubricant can be enclosed between the two sheaths 3 and 5, or better between the outer sheath 5 and a further concentric sheath, which makes it possible for the bundle with the inner sheath to be stretched when the bundle is tensioned can move relative to the outer casing.
  • This type of sheathing can also be carried out in an extrusion process.
  • the strands 1 are at most enclosed by the sheath 4 and joined together to form a band by the plastic 3.
  • the band consists of two and in Figs. 5 and 6 from four strands, Fig. 6 showing a band with a different shape of the sheath than Fig.5
  • the embodiments according to Figs. 4 to 6 are Strands 1 separated from one another by longitudinal webs 7 of the sheathing.
  • individual wires can also be combined into a bundle within the scope of the invention, the individual wires being able to be provided with a dry plastic, a galvanic coating or a coating of fat or thin hard plastic before the sheathing.
  • the end of the bundle can be slit open, as shown in FIG. 10, each end of the strand or the tensioning element being provided with its own anchor body 8.
  • each end of the strand or the tensioning element being provided with its own anchor body 8.
  • bundles consisting of more than two tendons can be divided into individual members in the same way.
  • the bundles according to the invention are used, for example, for prestressing structures with external or internal arrangement of the bundles, for ground anchors or as inclined cables, e.g. applied to suspension bridges.
  • they have also the advantage that they can adapt to any desired course.

Claims (7)

  1. Faisceau d'éléments de tension, constitué de plusieurs éléments de tension s'étendant parallèlement les uns aux autres, entourés ensemble de manière étroite d'une gaine en matière plastique, (3) et revêtus individuellement d'une matière glissante (4), la matière de la gaine (3) pénétrant également entre les éléments de tension en formant des cloisons longitudinales (7), caractérisé en ce que les éléments de tension sont conçus comme des cordes (1) et la gaine (3) entoure ces cordes (1) de manière serrée en évitant leurs structures externes de surface dont la coupe transversale est en forme de petit coin.
  2. Faisceau de tension selon la revendication 1, caractérisé en ce que les cordes (1) sont graissées individuellement.
  3. Faisceau de tension selon l'une des revendications précédentes, caractérisé en ce que la gaine (3), enveloppant toutes les cordes (1), présente au moins une surface sensiblement plane, de préférence deux surfaces sensiblement planes, s'étendant parallèlement entre elles.
  4. Faisceau de tension selon l'une des revendications précédentes, caractérisé en ce que la gaine (3) est pourvue d'au moins un autre gainage (5) en matière plastique qui colle à l'extérieur de la gaine (3).
  5. Faisceau de tension selon la revendication 4, caractérisé en ce qu'il est prévu un gainage intérieur (3) en matière plastique souple et un gainage extérieur (5) en matière plastique plus dure.
  6. Faisceau de tension selon la revendication 4 ou 5, caractérisé en ce qu'il est prévu une couche de lubrifiant entre au moins deux gainages (3, 5).
  7. Faisceau de tension selon l'une des revendications précédentes, caractérisé en ce que chaque gaine en matière plastique (3, 5) se compose de matière extrudée.
EP90890090A 1989-04-12 1990-03-28 Faisceau d'élément de tension constitué de membres de contrainte Expired - Lifetime EP0393013B2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT86389A AT409280B (de) 1989-04-12 1989-04-12 Spannbündel
AT863/89 1989-06-06
AT0138389A AT404956B (de) 1989-06-06 1989-06-06 Spannbündel
AT1383/89 1989-06-06

Publications (3)

Publication Number Publication Date
EP0393013A1 EP0393013A1 (fr) 1990-10-17
EP0393013B1 EP0393013B1 (fr) 1993-05-05
EP0393013B2 true EP0393013B2 (fr) 1997-06-25

Family

ID=25594134

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90890090A Expired - Lifetime EP0393013B2 (fr) 1989-04-12 1990-03-28 Faisceau d'élément de tension constitué de membres de contrainte

Country Status (5)

Country Link
US (1) US5573852A (fr)
EP (1) EP0393013B2 (fr)
JP (1) JPH0768674B2 (fr)
DE (1) DE59001339D1 (fr)
ES (1) ES2042271T5 (fr)

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DE59001339D1 (de) 1993-06-09
JPH0382883A (ja) 1991-04-08
US5573852A (en) 1996-11-12
ES2042271T5 (es) 1997-11-01
ES2042271T3 (es) 1993-12-01
EP0393013A1 (fr) 1990-10-17
EP0393013B1 (fr) 1993-05-05
JPH0768674B2 (ja) 1995-07-26

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