WO2011071410A1 - Câble de renfort - Google Patents

Câble de renfort Download PDF

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Publication number
WO2011071410A1
WO2011071410A1 PCT/RU2010/000573 RU2010000573W WO2011071410A1 WO 2011071410 A1 WO2011071410 A1 WO 2011071410A1 RU 2010000573 W RU2010000573 W RU 2010000573W WO 2011071410 A1 WO2011071410 A1 WO 2011071410A1
Authority
WO
WIPO (PCT)
Prior art keywords
wires
rope
reinforcing
wire
reinforcement
Prior art date
Application number
PCT/RU2010/000573
Other languages
English (en)
Russian (ru)
Inventor
Лев Маркович ЗАРЕЦКИЙ
Вениамин Александрович ХАРИТОНОВ
Юрий Анатольевич ДРЁМИН
Original Assignee
Zaretsky Lev Markovich
Kharitonov Veniamin Alexandrovich
Dryomin Yuriy Anatolyevich
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
Priority claimed from RU2009145244/03A external-priority patent/RU2009145244A/ru
Priority claimed from RU2009145245/03A external-priority patent/RU2431024C2/ru
Priority claimed from RU2010117661/03A external-priority patent/RU2435002C1/ru
Application filed by Zaretsky Lev Markovich, Kharitonov Veniamin Alexandrovich, Dryomin Yuriy Anatolyevich filed Critical Zaretsky Lev Markovich
Priority to CA2783883A priority Critical patent/CA2783883A1/fr
Priority to JP2012543041A priority patent/JP2013513038A/ja
Priority to EP10836266A priority patent/EP2511442A1/fr
Priority to EA201200619A priority patent/EA201200619A1/ru
Priority to US13/514,401 priority patent/US8677725B2/en
Priority to CN2010800554002A priority patent/CN102725461A/zh
Publication of WO2011071410A1 publication Critical patent/WO2011071410A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
    • 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
    • D07B1/0693—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a strand configuration
    • 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
    • D07B5/005—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties
    • 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
    • D07B5/007—Making ropes or cables from special materials or of particular form comprising postformed and thereby radially plastically deformed elements
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
    • D07B7/02—Machine details; Auxiliary devices
    • D07B7/027—Postforming of ropes or strands
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
    • 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
    • D07B2201/2001—Wires or filaments
    • D07B2201/2002—Wires or filaments characterised by their cross-sectional 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
    • D07B2201/2001—Wires or filaments
    • D07B2201/2007—Wires or filaments characterised by their longitudinal 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
    • D07B2201/2015—Strands
    • D07B2201/2016—Strands characterised by their cross-sectional shape
    • D07B2201/2017—Strands characterised by their cross-sectional shape triangular
    • 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
    • D07B2201/2019—Strands pressed to 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
    • D07B2201/2015—Strands
    • D07B2201/2021—Strands characterised by their longitudinal 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
    • D07B2201/2015—Strands
    • D07B2201/2024—Strands twisted
    • D07B2201/2027—Compact winding
    • D07B2201/2028—Compact winding having the same lay direction and lay pitch
    • 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
    • D07B2201/2038—Strands characterised by the number of wires or filaments
    • D07B2201/204—Strands characterised by the number of wires or filaments nine or more wires or filaments respectively forming multiple layers
    • 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

Definitions

  • the invention relates to rope production and can be used in the manufacture of embedded reinforcement intended for reinforcing monolithic structures and other concrete products.
  • Reinforcing steel of classes A500 and A600 is known, containing a hot-rolled bar with a section close to a circle, and inclined ribbed protrusions on its surface (see GOST R 52544-2006.
  • Rolled reinforcing bar welded with a periodic profile of classes A500C and B500C for reinforcing reinforced concrete designs.
  • Technical conditions ).
  • a disadvantage of the known reinforcing steel is its low technological effectiveness in the manufacture of monolithic structures, due to its execution by cuts of measured length, which forces each reinforcing element to be joined from many parts to the joint by welding with the accompanying softening of each reinforcing element at the welding points.
  • Another disadvantage of the known reinforcing steel is the low corrosion resistance of the reinforcing cage made from it, caused by the formation of pockets of ulcerative corrosion at the welding sites, as well as the practical impossibility of using a zinc anticorrosion coating due to the extremely low weldability in the case of its application .
  • the closest analogue to the claimed device is a reinforcing rope containing a central wire and wound around them twisted wires with a periodic profile made in the form of protrusions and depressions. Moreover, the periodic profile is made over the entire surface of the inoculation wires (see US Pat. Germany N ° 1659265, E 04 C5 / 03).
  • the known rope can be made in the form of a whole product of an arbitrarily long length and has self-straightening, has mechanical engagement in the screwing direction, but generally does not provide high adhesion to concrete due to narrow gaps between the circumference described around the rope section and the outer surface wires that do not leave space for the formation of strong concrete crests under the forming rope.
  • the disadvantage of the known rope is the physical and mechanical properties that are inconsistent with the tasks of embedded reinforcement, due to the fact that the strength provided by the high strength properties of the wire is not realized at transverse cross-sectional sizes that are significantly inferior to the transverse cross-sectional sizes of hot-rolled reinforcing steel of equal aggregate strength from -for a relatively small envelope contour.
  • a known method of reinforcing reinforced concrete structures including the installation of non-stressed reinforcement in the direction of the greatest length of the structure and in the transverse directions, cyclic erection of the formwork and filling the space inside the formwork with concrete, while the hot-rolled bars of measured length connected as reinforcement butt lengthwise by welding or threaded bushings after the completion of the next cycle of formation of a reinforced concrete element (see Code of Rules SP 52-103-2007 “Reinforced concrete monolithic structures buildings ”).
  • the disadvantages of the known method of reinforcement are the low strength properties of the reinforcing cage, both due to the mediocre strength of the reinforcement itself, in particular the low specific strength of the reinforcing bars and high creep, and because of the numerous joints of each reinforcing the length of the element, which does not allow it to perceive the load as a whole, and the high cost of reinforcement caused by the low specific strength of the rod reinforcing elements and . the high complexity of the reinforcement due to repeatedly repeated joining along the length of the reinforcing elements.
  • the closest analogue to the claimed manufacturing method is a method of manufacturing reinforcing ropes, including the manufacture of circular wires, applying a periodic profile to the outer wires, twisting the wires into a rope and its subsequent crimping.
  • a periodic profile is applied to the entire surface of the wires before they are twisted into a rope, and after twisting, elastic compression is carried out by drawing the twisted rope through a crimping die (see Pat. FRG N ° 1659265, E 04 C 5/03).
  • a disadvantage of the known method is the inability to produce a reinforcing rope with the physicomechanical properties necessary for embedded reinforcement due to the fact that the manufactured rope receives a cross section close to a circle, which does not allow its strength characteristics to be realized due to the insufficient size of the enveloping contour.
  • the adhesion of such a rope to concrete is lower than the adhesion of hot-rolled shaped reinforcement
  • the technical problem solved by the invention is to create a self-rectifying reinforcing element of an arbitrarily long length with a ratio of strength characteristics and a section enveloping contour at the level of hot-rolled reinforcing steel of classes A500 and A600, adhesion to concrete and other characteristics not lower than the level of hot-rolled reinforcing steel grades A500 and A600, as well as increased corrosion resistance due to the unlimited possibility of applying anti-corrosion coatings.
  • the problem is solved in that in a known reinforcing rope containing a central wire and helical spiral wires with a periodic profile wrapped around it, according to the invention, the rope wires have a temporary tensile strength of two or more times than for a hot-rolled rod of equal diameter, the periodic profile is made in the form of inclined protrusions above the generatrix of the crimped surface of the rope, sections of the surface of the wires in contact with other wires are made in the form of spirally arranged flat areas, a periodic profile is applied to the outer section the surface of the midwire wires, and the gaps between the circumference described around the cross-section of the rope and the surface of the outer wires have increased compared to the gaps in the round wire the size of the rope due to the cross-sectional shape of the outer wires and the arrangement of the wires in such a way that the contour connecting the outer sections of the winding wires tangentially is close to a triangle with rounded corners, but with no more than one incomplete layer of winding, for example
  • the wires can be arranged so that the contour connecting tangentially the outer sections of the coil wires is approximated to a polygon with rounded corners, for example, according to the 1 + 6 + 2 pattern.
  • the wires can be arranged so that the contour connecting tangentially the outer sections of the coil wires is close to a triangle or polygon with concave sides and rounded corners, for example, according to the scheme 1 + 6 + 3 or 1 + 6 + 2.
  • a periodic profile may not be made on all external wires or on all surfaces, for example, in the 1 + 6 + 3 scheme, a periodic profile may be made on the outer surface of 6 wires of the first layer of coils, while 3 wires of the second layer coils have smooth crimped surfaces.
  • the inventive rope can be used in the following way: in the known method of reinforcing reinforced concrete structures, including installation unstressed reinforcement in the direction of the greatest length of the structure and in the transverse directions, cyclic erection of the formwork and filling the space inside the formwork with concrete, according to the invention, reinforcing ropes of shaped-periodic profile are used as reinforcement in the direction of the greatest length of the structure they are fixed at the base of the structure and in each of the pouring cycles, they are fixed between the previously formed part of the structure and the distribution template, I submit to the distribution template t through the bypass rollers and the guide wiring from the coils located at the base of the structure, before each casting cycle, the distribution template is withdrawn from the previously formed part of the structure by the size of the formed section with the accompanying unwinding of the reinforcing ropes by twice as much, each reinforcing element is solid along the entire length of the structure, and the connection of mutually perpendicular reinforcing elements is carried out by means of bushings or
  • the reinforcing ropes can be disconnected from the coils in order to avoid the need for an excess length of rope segments.
  • reinforcing ropes of shaped-periodic profile can also be used as reinforcement in the directions of a small extent of the structure.
  • ropes as reinforcement: the presence of a periodic profile excluding the screwing effect allows the use of ropes as such, having high specific and absolute strength, relaxation and fatigue resistance; the absence of longitudinal joints allows the use of reinforcement with strain hardening and to ensure uniform perception and transfer of loads by the reinforcing element, as well as use anti-corrosion coatings, for example zinc.
  • the high relaxation and fatigue resistance of the cable reinforcement makes it possible to increase the endurance of the reinforcing cage, the high specific strength reduces the weight of the cage, the lower (in terms of strength) specific cost and fewer operations for connecting the reinforcing elements make it possible to reduce the cost.
  • the inventive design of the reinforcing rope can be made only by the claimed method, including the manufacture of round wires, applying a periodic profile to the grading wires, twisting the wires into a rope and crimping the rope, in which, according to the invention, the periodic profile is applied to the outer section of the surface of the midwires in the process of twisting them into a rope by deformation directly in the center of the twist along the outer surface of the midwires in the shaped roller gauge with rollers made with a cylindrical or barrel-shaped working surface with inclined slots, the rollers are located relative to the axis of the crimped rope at an angle equal to the angle of inclination of the outer surface of the wire of the rope to its axis, and at the same time as applying a periodic profile to the rollers, the plastic is crimped and the formation of spirally arranged flat areas in the areas of wire contact with each other.
  • the triangular spiral section is a part of the complex aimed at increasing the adhesion of solutions; it also excludes screwing due to the periodic profile on the outer surface of the wires.
  • one of the tasks of the trihedral cross section is to increase the diameter of the forming surface and, accordingly, the enveloping contour to match this parameter with equal strength bar reinforcement.
  • schematic images of the cross section of a multilayer spiral rope are shown, in which at least two incomplete layers of wires are present - where part of the wires are tangentially contacted with the wire located on that same radius, only in one direction and, accordingly, do not have support in the opposite direction.
  • the rope depicted in the indicated solution does not provide stable fixation of the wires: the wire of the outer layer of the coil, when exposed to normal or tangential load, inevitably moves inward to the level of the inner incomplete layer, shifting to free space by the same or a smaller (if there are three or more incomplete layers) radius of one of the wires of this layer; at the same time, an excess of length arises in the wire shifted to a smaller radius, in connection with which it loses a fixed position in the areas adjacent to the point of application of the load.
  • FIG. 1 shows the appearance of a reinforcing rope
  • FIG. 2 schematically shows a cross section of a reinforcing rope of construction 1 + 6 + 3 with a periodic profile on all outer surfaces of the grafting wires;
  • FIG. 4 - a schematic device for reinforcing ropes of monolithic reinforced concrete structures and its location relative to the formwork.
  • Reinforcing rope is arranged, for example, as follows.
  • a straight central wire 1 (Fig. 1, 2, 3) is located along the rope axis, around six central winding wires 2 of the inner layer, tightly adjacent to each other and to the central wire 1, are located around the central wire 1 along a helical line
  • the surface portions of the midwire wires 2 and 3 in contact with the surface of the central wire 1 and the adjacent midwire wires 2 and 3, as well as the surface areas of the center wire 1 in contact with the surface of the midwire 2, are made in the form of spiral-shaped flat platforms 4 (Fig. 2, 3).
  • a periodic profile made in the form of inclined protrusions 5 over the crimped rope surface 6 forming 6 is applied to the outer surface of the surface of the midwire wires 2 and 3 (FIGS. 1, 2) or only to the outer surface of the surface of the midwire wires 2 (FIG. 3).
  • Such a structural embodiment of the reinforcing rope makes it possible to improve its physical and mechanical properties due to the uniform distribution and low magnitude of the contact stresses arising in the rope, while simultaneously increasing the adhesion of the rope to concrete due to significantly increased gaps between the circumference described around the rope section and the surface of the outer wires, leaving space for the formation of strong concrete crests, as well as an enlarged enveloping contour.
  • the transverse projection of each of the three faces of the rope at the step of lay is a closed ring, the outer radius of which is equal to the radius described around the rope, and the inner radius is the distance from the axis of the rope to the outer edge of the contact area 4 between two adjacent wires 2 of the inner layer of the midwife.
  • a device for reinforcing ropes of monolithic reinforced concrete structures looks, for example, as follows.
  • the basis of the device is a frame 7 (Fig. 4), based on a previously formed section 8 of the erected structure, consisting of racks 9, for example, telescopic (not shown), providing the ability to feed and fix the reinforcement supply unit above the fabricated level of the erected structure , and directly to the reinforcement supply unit, which includes a distribution template 10, a set of bypass rollers 11 and wiring 12, located between the bypass rollers 11 and the coils 13 with measuring segments 14 shaped-periodic rope.
  • the inventive method of reinforcing monolithic reinforced concrete structures is carried out, for example, as follows: at the base of the reinforced structure, the ends of the measured sections 14 of the shaped-periodic cable are pre-wound on coils 13. By means of external or built-in feeding mechanisms and fixing devices of any known type, and fix the reinforcement supply unit by the value of the concrete section formed in this cycle so that the spheres between the distribution template 10 and earlier rmirovannym portion 8 portions dimensional structures segments 14 interlocking rope-periodic distribution relied in the desired direction.
  • the reinforcement is installed in the transverse directions, the formwork 15 is mounted around the installed reinforcement, then the formwork 15 is filled with concrete.
  • the measured segments 14 can be disconnected from the coils 13 and fixed in the bypass rollers 11 and the wires 12 by means of braking devices of any known type.
  • a reinforcing rope is made as follows.
  • the central wire 1 and the midi wires 2 and 3 of circular cross-section are preliminarily made, they are twisted together into a rope in any known rope machine, for example, of a yoke type.
  • a periodic profile in the form of inclined projections 5 is applied to the outer portion of the graft wires 2 or 2 and 3 over the surface forming 6 by cold deformation along the outer surface of the outer wires of the twisted rope in a closed volume shaped roller caliber of a periodic profile.
  • plastic compression of the rope is carried out, as a result of which pads 4 are formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Ropes Or Cables (AREA)

Abstract

La présente invention se rapporte à la production de câbles et peut être utilisée afin de renforcer des bâtiments faits d'un seul bloc ainsi que d'autres articles en béton. Le but de la présente invention consiste à créer un élément de renfort se redressant automatiquement. Le câble de renfort comprend un brin central et des brins de recouvrement enroulés en spirale autour de celui-ci et de manière à présenter un profil périodique. Un profil périodique est appliqué sur la section externe de la surface des brins de recouvrement, lequel se présente sous forme de protubérances inclinées au-dessus de la génératrice de la surface sertie du câble. Les sections de la surface des brins de recouvrement entrant en contact avec d'autres brins se présentent sous forme de faces planes disposées en spirales. Le câble est fixé à la base de d'édifice et, lors de chaque cycle de coulage, est fixé entre la partie déjà formée de l'édifice et un gabarit d'écartement. Le câble est fourni par des galets de dérivation et une gorge de guidage à partir de bobines disposées au niveau de la base. Avant chaque cycle de coulage, le gabarit est déplacé sur une distance correspondant à une section à former. Chaque élément de renfort est fait d'une seule pièce sur toute la longueur de l'édifice. La connexion d'éléments perpendiculaires se fait par des inserts ou un fil de liage.
PCT/RU2010/000573 2009-12-07 2010-10-11 Câble de renfort WO2011071410A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA2783883A CA2783883A1 (fr) 2009-12-07 2010-10-11 Cable de renfort
JP2012543041A JP2013513038A (ja) 2009-12-07 2010-10-11 強化ケーブル
EP10836266A EP2511442A1 (fr) 2009-12-07 2010-10-11 Câble de renfort
EA201200619A EA201200619A1 (ru) 2009-12-07 2010-10-11 Арматурный канат
US13/514,401 US8677725B2 (en) 2009-12-07 2010-10-11 Reinforcement cable
CN2010800554002A CN102725461A (zh) 2009-12-07 2010-10-11 钢筋缆索

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
RU2009145244/03A RU2009145244A (ru) 2009-12-07 2009-12-07 Способ армирования монолитных железобетонных строений и устройство для его осуществления
RU2009145245/03A RU2431024C2 (ru) 2009-12-07 2009-12-07 Арматурный канат и способ его изготовления
RU2009145245 2009-12-11
RU2009145244 2009-12-11
RU2010117661 2010-05-04
RU2010117661/03A RU2435002C1 (ru) 2010-05-04 2010-05-04 Способ армирования железобетонных сооружений

Publications (1)

Publication Number Publication Date
WO2011071410A1 true WO2011071410A1 (fr) 2011-06-16

Family

ID=44145767

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2010/000573 WO2011071410A1 (fr) 2009-12-07 2010-10-11 Câble de renfort

Country Status (7)

Country Link
US (1) US8677725B2 (fr)
EP (1) EP2511442A1 (fr)
JP (1) JP2013513038A (fr)
CN (1) CN102725461A (fr)
CA (1) CA2783883A1 (fr)
EA (1) EA201200619A1 (fr)
WO (1) WO2011071410A1 (fr)

Cited By (1)

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RU170526U1 (ru) * 2016-11-25 2017-04-27 Открытое акционерное общество "Магнитогорский метизно-калибровочный завод "ММК-МЕТИЗ" Арматурный канат

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CN104131481A (zh) * 2014-07-02 2014-11-05 龙岩强龙金属纤维有限公司 一种索吊具用金属绳带及制作工艺
RU2014132338A (ru) * 2014-08-05 2016-02-20 Лев Маркович Зарецкий Арматурный канат с повышенным сцеплением и способ его изготовления
CN107075818B (zh) * 2014-10-23 2022-01-07 贝卡尔特公司 用于路面加固的结构
AU2018410808A1 (en) * 2018-03-01 2020-10-01 Aktsionernoye Obshchestvo "Armastil Tekhnolodzhiz" Reinforcing cable having increased degree of bonding
CN109681379B (zh) * 2018-11-13 2020-11-17 白毅 可变翼展风筝风力机
US20240052565A1 (en) * 2020-12-17 2024-02-15 Nv Bekaert Sa Compacted steel strand with cladded core

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JP2013513038A (ja) 2013-04-18
EP2511442A1 (fr) 2012-10-17

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