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US20190264402A1 - Double-sheathed structural cable - Google Patents

Double-sheathed structural cable Download PDF

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Publication number
US20190264402A1
US20190264402A1 US16/320,349 US201616320349A US2019264402A1 US 20190264402 A1 US20190264402 A1 US 20190264402A1 US 201616320349 A US201616320349 A US 201616320349A US 2019264402 A1 US2019264402 A1 US 2019264402A1
Authority
US
United States
Prior art keywords
sheath
structural cable
segment
tendons
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.)
Abandoned
Application number
US16/320,349
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English (en)
Inventor
Antoine DUGAIN
Matthieu GUESDON
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.)
Soletanche Freyssinet SA
Original Assignee
Soletanche Freyssinet 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 Soletanche Freyssinet SA filed Critical Soletanche Freyssinet SA
Publication of US20190264402A1 publication Critical patent/US20190264402A1/en
Assigned to SOLETANCHE FREYSSINET reassignment SOLETANCHE FREYSSINET ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DUGAIN, Antoine, GUESDON, Matthieu
Abandoned 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
    • D07B1/16—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
    • D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
    • D07B1/148—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising marks or luminous elements
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D11/00—Suspension or cable-stayed bridges
    • E01D11/04—Cable-stayed bridges
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/20—Side-supporting means therefor, e.g. using guy ropes or struts
    • 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
    • D07B2201/2083—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
    • 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
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2083—Jackets or coverings
    • D07B2201/2092—Jackets or coverings characterised by the materials used
    • D07B2201/2093—Jackets or coverings characterised by the materials used being translucent
    • 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
    • D07B2201/2092—Jackets or coverings characterised by the materials used
    • D07B2201/2094—Jackets or coverings characterised by the materials used being luminescent or reflective
    • 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
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/202—Environmental resistance
    • 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
    • D07B2501/203—Bridges

Definitions

  • the present invention relates to structural cables used in the construction industry. It is applicable, in particular, to stay cables used for supporting, stiffening or stabilizing structures.
  • Stay cables are widely used to support suspended structures such as bridge decks or roofs. They can also be used to stabilize erected structures such as towers or masts.
  • a typical structure of a stay cable includes a bundle of tendons, for example wires or strands, housed in a collective plastic sheath.
  • the sheath protects the metallic tendons of the bundle and provides a smooth appearance of the stay cable.
  • the sheath is in the form of an integral tube which extends from the lower anchoring point to the upper anchoring point of the stay cable.
  • the tendons are threaded, usually one by one or small groups by small groups, into the sheath before anchoring them at both ends. Examples illustrating such technology are described in U.S. Pat. Nos. 5,461,743 and 7,779,499.
  • the sheath is made of segments following each other along the cable.
  • Each segment can be made of several sectors assembled around the bundle of tendons. See, for example, U.S. Pat. No. 5,479,671.
  • An object of the present invention is to propose another kind of sheath design for structural cables.
  • the present document discloses a structural cable of a construction work.
  • the structural cable comprises:
  • a second sheath arranged around the first sheath, with a gap between the first and second sheaths.
  • the gap between the two concentric sheaths can be advantageously used to insert some equipment, for example wiring, piping or various kinds of devices to provide more functionality in the structural cable, beyond its primary load-bearing function.
  • Visual effects, lightning protection, fire protection can be cited as potential functionality which may be added thanks to the gap between the first and second sheaths.
  • light sources are arranged in the gap between the first and second sheaths, the second sheath being at least in part light-transmissive.
  • the second sheath extends over more than 80% of a length of the bundle of tendons between the upper and lower anchoring devices.
  • the first sheath extends as an integral tubular member between a first end adjacent to the lower anchoring device and a second end adjacent to the upper anchoring device.
  • the second sheath can be configured to transmit substantially no longitudinal effort to the first sheath. Thus, addition of the second sheath does not alter significantly the mechanical behavior of the structural cable.
  • each segment of the second sheath can be configured to transmit substantially no longitudinal effort to an adjacent segment of the second sheath.
  • An embodiment of the structural cable further comprises at least one rope extending along the bundle of tendons in the gap between the first and second sheaths, the second sheath being attached to the at least one rope.
  • the rope(s) support(s) the second sheath along the direction of the structural cable, such that the efforts between the first and second sheath are essentially transverse to the direction of the structural cable.
  • the second sheath may be attached to the at least one rope using fasteners each having a first part fixed to a rope and a second part protruding transversely to the rope and through a wall of the second sheath, the second part having an end outside the second sheath for receiving a removable connector.
  • the second sheath comprises a plurality of segments assembled along the bundle of tendons, each segment being connected to the at least one rope.
  • a joint member may be disposed between an upper end of a first segment of the second sheath and a lower end of a second segment of the second sheath adjacent to the first segment, the joint member being configured to accommodate a longitudinal displacement of the upper end of the first segment relatively to the lower of the second segment.
  • the joint member may have an H-shaped cross-section.
  • Each segment of the second sheath may comprise a plurality of elements assembled together around the first sheath.
  • the elements of a segment of the second sheath are assembled together by fitting a male edge of an element in a female edge of an adjacent element.
  • they can be assembled together using clips holding opposing edges of adjacent elements.
  • each segment of the second sheath is at least in part removable to provide access to the gap between the first and second sheaths.
  • spacing members may be disposed in the gap between the first and second sheaths.
  • FIG. 1 is a schematic side view of a stay cable
  • FIGS. 2-4 are cross-sectional schematic views of structural cables according to embodiments as disclosed herein;
  • FIG. 5 is an axial sectional view illustrating the assembly of two adjacent elements of a cable sheath
  • FIG. 6 is a perspective view of a double sheath which may be used in embodiments as disclosed herein;
  • FIGS. 7 and 8 are cross-sectional views of fasteners used to hold a sheath on ropes in embodiments as disclosed herein, FIG. 7 being an axial section along direction VII-VII shown in FIG. 8 , and FIG. 8 being a radial section along direction VIII-VIII shown in FIG. 7 ; and
  • FIG. 9 is an longitudinal sectional view illustrating the assembly of two adjacent segments of a cable sheath.
  • FIG. 1 shows a stay cable 10 which is a structural cable extending between two parts 11 , 12 of a construction work.
  • the first part 11 is at a higher position than the second part 12 .
  • the first part 11 belongs to a tower, while the second part 12 belongs to a foundation to stabilize the tower.
  • the first part 11 may belong to a pylon, while the second part 12 belongs to some structure suspended from the pylon 11 .
  • the construction work typically includes a number of stay cables 10 , only one of them being shown in FIG. 1 .
  • the structural cable 10 has a load-bearing part 15 which consists of a bundle of tendons disposed parallel to each other (see FIGS. 2-4 ).
  • the bundled tendons may be strands of the same type as used to pre-stress concrete structures.
  • Each strand may optionally be protected by a substance such as grease or wax and individually contained in a respective plastic sheath (not shown).
  • Each stay cable 10 may have a length of up to several hundred meters, and include a few tens of tendons, as illustrated in FIGS. 2-4 .
  • the load-bearing tendons are anchored at both ends of the bundle 15 using an upper anchoring device 16 mounted on the first part 11 of the construction work and a lower anchoring device 17 mounted on the second part 12 of the construction work. Between the two anchoring devices 16 , 17 , the bundle of tendons 15 follows a catenary curve due to its own weight and the tensile force maintained by the anchoring devices.
  • the anchoring devices 16 , 17 are positioned on the first and second parts 11 , 12 by taking into account the pre-calculated catenary curve of each stay cable 10 .
  • the bundle of tendons 15 is contained in a first protective sheath 20 which is surrounded by a second sheath 22 .
  • Both sheaths 20 , 22 are typically made of plastic material. The materials of the two sheaths may be different from each other.
  • the first and second sheaths 20 , 22 are spaced apart from each other, so that there is a gap between them.
  • both sheaths 20 , 22 have a circular cross-section and are arranged substantially concentric to each other along the bundle of tendons 15 . Therefore, the cross-section of the gap has an annular shape.
  • the first sheath 20 may consist of an integral tubular member extending between a first end adjacent to the lower anchoring device 17 and a second end adjacent to the upper anchoring device 16 .
  • the bundle of tendons 15 and the first sheath 20 can then be installed according to a conventional method, for example as described in U.S. Pat. No. 5,461,743 or 7,779,499.
  • the first end of the first sheath 20 bears on a guide tube 25 through which the bundle of tendons 15 passes near the lower anchoring device 17 , while the second end of the first sheath 20 penetrates into another tube 26 disposed on the first part 11 of the construction work, through which the upper end of the bundle of tendons 15 passes to reach the upper anchoring device 16 .
  • the second end of the first sheath 20 is not connected to the tube 26 , so that it can slide therein when the tendons 15 and the sheath 20 undergo different expansion or contraction on account of the thermal expansion coefficients of their materials. The arrangement prevents run off water from flowing inside the first sheath 20 .
  • the weight of the plastic sheath 20 is taken up by some transverse effort on the bundle of tendons 15 , and mainly by an axial effort on the guide tube 25 .
  • the first sheath 20 may be suspended from the first part 11 of the construction work near the upper anchoring device 16 , with a buffering arrangement near the lower end of the stay cable to accommodate for the different thermal expansion behaviors.
  • the second sheath 22 is mounted around the first sheath 20 so as to be, to a large extent, mechanically independent from the first sheath 20 .
  • the second sheath 22 is configured to transmit substantially no longitudinal effort to the first sheath 20 .
  • Such independence of the second sheath 22 can be achieved by attaching the second sheath 22 to one or more ropes 30 extending along the bundle of tendons 15 in the gap between the first and second sheaths 20 , 22 , using an arrangement as illustrated in FIGS. 6-8 .
  • FIG. 6 shows the two concentric sheaths 20 , 22 with a pair of ropes 30 arranged in the gap at diametrically opposed positions. It will be appreciated that there can be only one rope, or more than two ropes.
  • Each rope 30 can be made of metallic wires and have its two ends connected to the first and second parts 11 , 12 of the construction work using respective anchoring devices (not shown).
  • the wire ropes 30 are arranged near the inner surface of the outer sheath 22 , to which they are attached via fasteners 32 distributed along the length of the stay cable.
  • Each fastener 32 ( FIGS. 7-8 ) has a sleeve part 33 in which the wire rope 30 is threaded and having swaged ends 34 for fixing the sleeve part 33 to the rope 30 .
  • the fastener 32 also includes a rod part 35 protruding transversely from the sleeve part 33 and the rope 30 .
  • the rod part 35 is inserted in a hole formed in the wall of the second sheath 22 , and a removable connector 36 is received at the end of the rod part 35 outside the sheath 22 .
  • the removable connector 36 is a circlip engaging an annular groove of the rod part 35 , a washer 37 being placed between the wall of the second sheath 22 and the circlip 36 .
  • Other connectors such as locking pins can be used.
  • the wire ropes 30 and the fasteners 32 hold each segment of the second sheath 22 such that the weight of each segment of the second sheath 22 does not translate into longitudinal efforts applied on the first sheath 20 or the bundle of tendons 15 , and is not applied on an adjacent segment of the second sheath 22 .
  • FIG. 6 shows one segment of the second sheath 22 .
  • a plurality of such segments are assembled along the structural cable 10 .
  • Each segment having a length of 3 to 10 m, for example, is connected to the wire ropes 30 stretched between the two sheaths 20 , 22 by means of fasteners 32 .
  • Joint members 40 are disposed between the segments of the second sheath 22 to ensure their proper alignment while allowing some relative longitudinal displacement of the axial ends of adjacent segments.
  • FIG. 9 A possible configuration of such a joint member 40 is shown in FIG. 9 .
  • the joint member 40 has an annular shape with a diameter adapted to that of the second sheath 22 , and an H-shaped cross-section.
  • the H-shaped joint member 40 has two opposite annular openings, one receiving the upper end of a first segment of the second sheath 22 , and the other one receiving the lower end of a second segment of the second sheath adjacent to the first segment.
  • a spacing d is left between the axial ends of the adjacent segments.
  • the spacing d and the axial length D of the joint member 40 are selected depending on the length of the sheath segments and the thermal expansion coefficients of the plastic material of the sheath 22 and of the metal of the wire rope 30 , so that the axial ends of the adjacent segments remain held in the openings of the H-shaped joint member 40 when the stay cable undergoes temperature variation in the relevant range for the construction work.
  • the temperature range is typically 50° C. or more.
  • a sheath segment overlaps the lower end of the sheath segment located just above it, for example as described in U.S. Pat. No. 5,479,671.
  • a tulip-shaped overlap joint is formed between the two adjacent segments.
  • a space is provided between the female and male parts of this tulip-shaped overlap joint to allow some telescoping movement of the two sheath segments so as to accept some thermal expansion and rotation of the sheath segments.
  • a segment of the second sheath 22 may consist of an integral piece of tube, as illustrated in FIG. 2 .
  • the segment may consist of a plurality of sector-shaped elements assembled together around the first sheath 20 .
  • FIG. 5 Another way of assembling sheath elements is illustrated in FIG. 5 .
  • the elements 22 A, 22 B of a segment of the second sheath 22 are assembled using clips 45 holding opposing edges of adjacent elements.
  • each sheath element 22 A, 22 B has longitudinal grooves 46 next to its longitudinal edges, one on each face.
  • the clip 45 has a generally H-shaped cross-section, with each half fitted on the longitudinal edge of a sheath element 22 A, 22 B.
  • the profile of the clip 45 also has inner dogs or ribs 47 engaging the longitudinal grooves 46 of the sheath element 22 A, 22 B to secure the elements in position.
  • spacing members 50 may be disposed in the gap between the first and second sheaths 20 , 22 , in order to limit transversal movement of the second sheath 22 with respect to the first sheath 20 .
  • the spacing members 50 may have elastic or viscoelastic properties. They can be fixed to the first sheath 20 , the second sheath 22 , or both.
  • That functional element may, if appropriate, play the role of a spacing member 50 .
  • the second sheath 22 is made of a transparent plastic material, and light sources are disposed in the gap between the first and second sheaths 20 , 22 .
  • the light sources are, for example, light-emitting diodes (LEDs) arranged along strips 50 .
  • Each strip 50 mounted on a profile 51 fixed on the outside of the first sheath 20 , plays the role of a spacing member.
  • Making the second sheath 22 of a transparent plastic material offers a variety of options to add architectural features to the cabled suspension of the construction work. Ornamental or colored patterns can be inserted to give a distinctive appearance to the construction work. In particular, light patterns can be created using LEDs or other kinds of sources.
  • the second sheath 22 may be made of a light-transmissive material, e.g. transparent, translucent, with or without color filters, etc.
  • the light-transmissive property can be provided on the whole surface of the second sheath 22 , or only on part of it, for example where rows of light sources are disposed.
  • the annular gap between the first and second sheaths 20 , 22 can be made accessible from the outside by the arrangement of the segments making up the second sheath 22 .
  • the elements forming the sheath segments are removable to provide the access to the gap. This can be done by removing the connectors 36 of the fasteners 32 ( FIGS. 7-8 ) and using flexibility of the materials of the joint members 40 ( FIG. 9 ) and/or clips 45 ( FIG. 5 ) to extract the element.
  • the joint members 40 and/or clips 45 may have a removable part on the outside to facilitate dismounting of a sheath element when needed.
  • the second sheath 22 may cover only a portion of the running part of the structural cable 10 . However, it will generally be preferred to install it over the whole running part. It is not practical to have the second sheath 22 extended all the way to the anchoring devices 16 , 17 . Also, the second sheath 22 may have to be interrupted at places if some of the cables are connected together by vibration damping devices as described, e.g., in U.S. Pat. No. 7,631,384 or application US 2015/113744 A1. Where such damping devices are provided, adjacent sheath segments are spaced apart at the level of their fixing collars, and the ropes 30 should pass through or around the collars to properly hold the second sheath 22 .
  • the cable portions not covered by the second sheath 22 are minimized.
  • the second sheath 22 extends over more than 80% of the length of the bundle of tendons 15 between the anchoring devices 16 , 17 , or even more than 90% for long stay cables.
  • the upper end of the second sheath 22 is located within the upper tube 26 mounted on the first part 11 of the construction work, so that it is not visible and run off water is prevented from flowing inside the second sheath 22 .
  • the second sheath 22 a regular profile, typically with a circular cross-section.
  • the second sheath 22 may also be provided with specific surface structure, known in the art, e.g. double helical ribs, to improve its behavior in the presence of a combined action of rain and wind.
  • the invention is applicable to structural cables other than stay cables.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Insulated Conductors (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
US16/320,349 2016-07-27 2016-07-27 Double-sheathed structural cable Abandoned US20190264402A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2016/001314 WO2018020288A1 (fr) 2016-07-27 2016-07-27 Câble de structure à double gaine

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2016/001314 A-371-Of-International WO2018020288A1 (fr) 2016-07-27 2016-07-27 Câble de structure à double gaine

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/918,884 Continuation US20200332464A1 (en) 2016-07-27 2020-07-01 Double-sheathed structural cable

Publications (1)

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US20190264402A1 true US20190264402A1 (en) 2019-08-29

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Family Applications (3)

Application Number Title Priority Date Filing Date
US16/320,349 Abandoned US20190264402A1 (en) 2016-07-27 2016-07-27 Double-sheathed structural cable
US16/320,262 Active 2038-08-17 US11365513B2 (en) 2016-07-27 2016-11-18 Dual-sheath structural cable
US16/918,884 Abandoned US20200332464A1 (en) 2016-07-27 2020-07-01 Double-sheathed structural cable

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US16/320,262 Active 2038-08-17 US11365513B2 (en) 2016-07-27 2016-11-18 Dual-sheath structural cable
US16/918,884 Abandoned US20200332464A1 (en) 2016-07-27 2020-07-01 Double-sheathed structural cable

Country Status (10)

Country Link
US (3) US20190264402A1 (fr)
EP (3) EP3491194B1 (fr)
JP (3) JP2019533097A (fr)
KR (2) KR102648176B1 (fr)
AU (2) AU2016416839B2 (fr)
BR (2) BR112019001185B1 (fr)
CA (2) CA3031726C (fr)
ES (1) ES2864034T3 (fr)
MX (2) MX2019001111A (fr)
WO (2) WO2018020288A1 (fr)

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RU2756644C1 (ru) 2017-11-03 2021-10-04 Солетанш Фрейсине Оболочка конструкционного каната для сооружения, способы установки и технического обслуживания
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EP3983609A1 (fr) * 2019-06-11 2022-04-20 VSL International AG Élément de blindage pour la protection d'un matériau structural et/ou d'un élément porteur de charge
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