EP1129264A1 - Kabel aus parallelen fäden für ein bauwerk, verankerung und verankerungsverfahren für solchen kabel - Google Patents

Kabel aus parallelen fäden für ein bauwerk, verankerung und verankerungsverfahren für solchen kabel

Info

Publication number
EP1129264A1
EP1129264A1 EP00962608A EP00962608A EP1129264A1 EP 1129264 A1 EP1129264 A1 EP 1129264A1 EP 00962608 A EP00962608 A EP 00962608A EP 00962608 A EP00962608 A EP 00962608A EP 1129264 A1 EP1129264 A1 EP 1129264A1
Authority
EP
European Patent Office
Prior art keywords
wires
sheath
reinforcement
bundle
wall
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
EP00962608A
Other languages
English (en)
French (fr)
Other versions
EP1129264B1 (de
Inventor
Jérôme Stubler
Patrick Ladret
Jean-Claude Percheron
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 SAS
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
Publication of EP1129264A1 publication Critical patent/EP1129264A1/de
Application granted granted Critical
Publication of EP1129264B1 publication Critical patent/EP1129264B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • D07B1/0673—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration
    • D07B1/068—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration characterised by the strand design
    • 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
    • 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
    • D07B5/002—Making parallel wire strands
    • 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
    • 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
    • D07B2201/2023—Strands with core
    • 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
    • D07B2201/2033—Parallel 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
    • D07B2201/2015—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
    • D07B2201/2015—Strands
    • D07B2201/2046—Strands comprising fillers
    • 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
    • D07B2201/206—Cores characterised by their structure comprising wires arranged parallel to the axis
    • 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
    • D07B2201/2062—Cores characterised by their structure comprising wires comprising fillers
    • 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
    • D07B2201/2071—Spacers
    • D07B2201/2073—Spacers in circumferencial direction
    • 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
    • D07B2201/2084—Jackets or coverings characterised by their shape
    • D07B2201/2085—Jackets or coverings characterised by their shape concerning the internal shape
    • 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
    • D07B2201/2084—Jackets or coverings characterised by their shape
    • D07B2201/2086—Jackets or coverings characterised by their shape concerning the external shape
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/20—Organic high polymers
    • D07B2205/201—Polyolefins
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/20—Organic high polymers
    • D07B2205/2075—Rubbers, i.e. elastomers
    • 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
    • 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
    • Y10T428/2933—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
    • Y10T428/2973—Particular cross section

Definitions

  • the present invention relates to the field of reinforcements used in structures of construction work.
  • the invention is aimed in particular, but not exclusively, among these structures, those which are intended to equip the cable-stayed, suspension or other bridges.
  • the reinforcements usually encountered in such structures include a number of wires.
  • the various constituent wires are generally twisted around a central wire.
  • This arrangement is used to make a strand, also called strand, from wires of reduced diameters.
  • the mechanical characteristics of the strand obtained are higher than those of a single strand, the cross section of which would be equivalent to that of said strand. Twisting the peripheral wires around a central wire makes the strand or strand wires interdependent and reduces the bending inertia of the assembly.
  • a reinforcement unit is thus obtained from very high resistance wires.
  • the production of the twisted strand or strand requires a particular stranding operation which is expensive.
  • this operation causes a differential elongation between the central wire and the peripheral wires.
  • the peripheral wires are then less stressed than the central wire, inducing an apparent modulus of elasticity of the strand lower than that of each constituent wire. 2
  • the fatigue behavior of a strand as defined above is less efficient than that of the wire which constitutes it.
  • the differential elongation between the peripheral wires and the central wire in fact causes differential movements with the radial pressure and therefore friction between the wires which is not favorable to fatigue.
  • a spacer device Prior to this extrusion operation, a spacer device makes it possible to fill the spaces between the wires around the central wire with a flexible product such as grease or wax. This operation creates, because of the need to untwist and twist the wires again, a new work hardening by deformation of the peripheral wires, which reduces the ductility of the strand.
  • a frame of the kind in question is essentially characterized in that the wires are substantially parallel to one another to form a bundle and in that it comprises a plastic sheath which envelops the bundle in it giving cohesion.
  • the solid wires are metallic wires and the sheath is made of flexible plastic material extruded on the bundle;
  • the solid wires are wires made of composite material and the sheath is made of flexible plastic material extruded on the bundle;
  • the bundle of wires comprises a central wire and peripheral wires, the peripheral wires being tangent to the central wire and mutually separated by delimiting grooves;
  • the sheath is of cylindrical outer shape and has a lobed inner wall which is provided with hollows and projections, the peripheral wires being housed in the hollows and the projections extending into the grooves;
  • the sheath has an outer wall of circular shape in cross section; - The sheath has an outer wall of lobed shape in cross section; - The sheath has an outer wall of substantially polygonal shape in cross section; the sheath and the wires delimit interstices which are filled with a lubricant chosen from wax and grease; and
  • the sheath and the wires delimit interstices which are filled by an adhesive device.
  • the invention also relates to a cable for a structure of a construction work comprising at least two reinforcements as defined above.
  • the invention further relates to a method of packaging an armature as defined above, by parallel winding on a reel by performing a complete twist on a turn.
  • the subject of the invention is a method of implementing in a construction work, a reinforcement as defined above, consisting in that, in at least a portion of the reinforcement, the wires are stripped solid and the bare wires are anchored to at least one constituent part of the construction work so as to make the reinforcement work in traction.
  • FIG. 1 is a view general diagram of a suspension bridge comprising reinforcements according to the present invention
  • - Figures 2 to 6 are respectively cross-sectional views of a frame according to a first, second, third, fourth and fifth embodiment.
  • the structure of construction work 1 shown in Figure 1 is for example a suspension bridge.
  • This bridge conventionally comprises an apron 2, two pylons 3, two parallel carrying cables 4, only one being visible in the figure, and a plurality of hangers 5 which are attached to the cables 4, and which carry the apron 2.
  • the carrying cables 4 are stretched between two ground anchors 6 located at the two ends of the bridge, and they are supported by the two pylons 3.
  • Each carrying cable 3 consists of one or more reinforcements 10 according to a first embodiment of the invention such as that shown in FIG. 2.
  • Each frame 10 consists of a set of solid wires 11 which form a bundle wrapped in a sheath 12.
  • the frame 10 thus formed is also called strand, and can be joined to other strands to form the cable 4.
  • the wires 11 are generally seven in number and include a central wire 13 around which six peripheral wires 14 are arranged.
  • the wires 13 and 14 extend parallel to each other and are for example made of steel.
  • the wires 13 and 14 are in mutual contact according to their generator. Only the central wire 13 is in contact with all the other peripheral wires 14.
  • the wires peripherals 14 are spaced apart two by two and delimit grooves 15 which are turned towards the outside of the bundle of wires 13,14.
  • the set of wires 13 and 14 is extruded with the sheath 12.
  • This sheath forms an outer envelope of flexible plastic which can be HDPE or amorphous polypropylene.
  • the sheath 12 ensures the cohesion of all of the wires 13 and 14.
  • the sheath 12 is of hollow cylindrical shape and has an outer wall 16 and an inner wall 17. The thickness of the sheath is small compared to its length.
  • the outer wall 16 is, in cross section, of circular shape while the inner wall 17 is, in cross section, lobed.
  • This wall thus has recesses 18 and projections 19 which alternate in succession along the circumference of the interior wall.
  • peripheral cables 14 are housed in the recesses 18 and the projections 19 extend between the cables 14 in the grooves 15. Thus, the peripheral cables are firmly held by the sheath.
  • the frame 20 differs from the frame 10 only by the shape of the outer wall of the sheath or sheath 22.
  • This sheath has an outer wall 26 and an inner wall 27 which are, in cross section, both of lobed shape.
  • the inner wall 27 is similar to the inner wall 17 of the sheath 12 of the first embodiment and is provided with recesses 28 and projections 29.
  • the outer wall is similar to the inner wall 17 of the sheath 12 of the first embodiment and is provided with recesses 28 and projections 29.
  • 26 has recesses and projections respectively in correspondence of the projections and the recesses of the inner wall 27.
  • the frame 30 of the third embodiment shown in Figure 4 differs from the frame 20 previously described only by the fact that the son 13 and 14 are embedded in an elastomer matrix 31 such as polybutadiene or the like.
  • This matrix occupies the interstices located between the wires 13,14.
  • the elastomer 31 adheres to the wires, by surface adhesion, preferably, by chemical bond with the sheath 22 to increase this adhesion.
  • the matrix can be a lubricant such as wax or grease to reduce friction between the wires and the sheath.
  • the frame 40 differs from the frame 30 described with reference to Figure 4 by the outer shape of the sheath 42.
  • the outer wall 46 of this sheath is no longer lobed shape in cross section, but polygonal in shape. This shape facilitates the juxtaposition of the reinforcements or strands in order to constitute a cable 50 such as that shown in FIG. 6.
  • the spaces between the strands 40 can be occupied by a matrix similar to that described above.
  • the strand thus obtained according to one of the embodiments has a mechanical strength, a modulus of elasticity, fatigue performance and a ductility of values equivalent and even equal to those of each wire which constitutes it.
  • the strand In order to be packaged and transported to the area of the construction work, the strand is wound on a reel by performing a complete twist on a turn.
  • the pitch is of the order of one to three meters so that residual stresses in the elastic range are stored in each constituent wire.
  • the reinforcement obtained according to one of the embodiments is implemented within the building structure 1 to have the function of one of the cables 4 or of the lines 5.
  • a portion of the armature for example the end, is stripped by removing the sheath.
  • the wires thus stripped are fixed by means of jaws, for example in the ground anchors 6, and the rest of the armature extends in the direction of the pillars 3 so as to make the armature work in traction.
  • All of the wires 13, 14 are for example collectively wedged in the anchoring jaw.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Piles And Underground Anchors (AREA)
  • Ropes Or Cables (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Details Of Indoor Wiring (AREA)
  • Electric Cable Installation (AREA)
EP00962608A 1999-09-15 2000-09-12 Kabel aus parallelen fäden für ein bauwerk, verankerung und verankerungsverfahren für solchen kabel Expired - Lifetime EP1129264B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9911515A FR2798408B1 (fr) 1999-09-15 1999-09-15 Cable a fils paralleles pour structure d'ouvrage de construction, ancrage d'un tel cable, et procede d'ancrage
FR9911515 1999-09-15
PCT/FR2000/002509 WO2001020096A1 (fr) 1999-09-15 2000-09-12 Cable a fils paralleles pour structure d'ouvrage de construction, ancrage d'un tel cable, et procede d'ancrage

Publications (2)

Publication Number Publication Date
EP1129264A1 true EP1129264A1 (de) 2001-09-05
EP1129264B1 EP1129264B1 (de) 2006-03-01

Family

ID=9549850

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00962608A Expired - Lifetime EP1129264B1 (de) 1999-09-15 2000-09-12 Kabel aus parallelen fäden für ein bauwerk, verankerung und verankerungsverfahren für solchen kabel

Country Status (12)

Country Link
US (2) US6560807B1 (de)
EP (1) EP1129264B1 (de)
JP (1) JP3910066B2 (de)
AT (1) ATE318968T1 (de)
AU (1) AU7427400A (de)
DE (1) DE60026330T2 (de)
DK (1) DK1129264T3 (de)
ES (1) ES2258473T3 (de)
FR (1) FR2798408B1 (de)
HK (1) HK1038252A1 (de)
PT (1) PT1129264E (de)
WO (1) WO2001020096A1 (de)

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US8438826B2 (en) * 2010-10-11 2013-05-14 Wireco Worldgroup Inc. Four strand blackened wire rope
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JP6161397B2 (ja) * 2013-05-16 2017-07-12 大成建設株式会社 Ｐｃケーブル
CN105421244B (zh) * 2015-12-10 2017-07-28 江苏法尔胜缆索有限公司 一种悬索桥主缆用预制平行钢丝预成型索股的制作方法
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Also Published As

Publication number Publication date
FR2798408B1 (fr) 2002-01-18
US6658684B2 (en) 2003-12-09
JP2003509604A (ja) 2003-03-11
JP3910066B2 (ja) 2007-04-25
AU7427400A (en) 2001-04-17
DK1129264T3 (da) 2006-07-10
PT1129264E (pt) 2006-07-31
ATE318968T1 (de) 2006-03-15
US20030110583A1 (en) 2003-06-19
EP1129264B1 (de) 2006-03-01
HK1038252A1 (en) 2002-03-08
DE60026330T2 (de) 2006-10-19
FR2798408A1 (fr) 2001-03-16
ES2258473T3 (es) 2006-09-01
DE60026330D1 (de) 2006-04-27
US6560807B1 (en) 2003-05-13
WO2001020096A1 (fr) 2001-03-22

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