EP1211350A1 - Individuell geschützte Litze, deren Verwendung in der Bautechnik und Verfahren zu deren Herstellung - Google Patents
Individuell geschützte Litze, deren Verwendung in der Bautechnik und Verfahren zu deren Herstellung Download PDFInfo
- Publication number
- EP1211350A1 EP1211350A1 EP01403085A EP01403085A EP1211350A1 EP 1211350 A1 EP1211350 A1 EP 1211350A1 EP 01403085 A EP01403085 A EP 01403085A EP 01403085 A EP01403085 A EP 01403085A EP 1211350 A1 EP1211350 A1 EP 1211350A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- group
- strand
- strands
- periphery
- sheath
- 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
Links
Images
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
- 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
- D07B7/14—Machine details; Auxiliary devices for coating or wrapping ropes, cables, or component strands thereof
- D07B7/145—Coating or filling-up interstices
-
- 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
- D07B7/16—Auxiliary apparatus
- D07B7/18—Auxiliary apparatus for spreading or untwisting ropes or cables into constituent parts for treatment or splicing purposes
- D07B7/185—Auxiliary apparatus for spreading or untwisting ropes or cables into constituent parts for treatment or splicing purposes for temporarily untwisting ropes or cables into constituent parts for applying a coating
-
- 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
- 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
- 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
- D07B2201/2075—Fillers
- D07B2201/2076—Fillers having a lubricant function
-
- 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
- D07B2205/00—Rope or cable materials
- D07B2205/50—Lubricants
- D07B2205/505—Greases
-
- 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
- D07B2401/2025—Environmental resistance avoiding corrosion
-
- 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
-
- 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]
Definitions
- the present invention relates to strands individually protected used in works of civil engineering, in particular to pre-stress or suspend portions of work.
- These strands include an assembly of wires metallic twisted together, which are most often number of seven. Metal wires are frequently subjected to electrochemical treatment (galvanization, galfanisation, ...) providing a certain resistance to corrosion.
- Uncoated strands are commonly used, ensuring that they are not placed in a corrosive environment. These strands are set up directly in concrete, or in collective ducts filled with cement grout or grease or wax oil. Cement passivity or non-corrosivity of petroleum products strengthens protection against corrosion.
- strands individually protected by a plastic sheath usually a high density polyethylene (HDPE) or an epoxy, which creates a tight barrier around the metal wires.
- HDPE high density polyethylene
- a filler of several types (wax, grease, polymer ...), fills the existing gaps between the metal wires and the individual sheath for reinforce the protection of the strand against corrosion.
- the filling product allows either a slip metallic wires stranded relative to their sheath individual (sheathed-greased or sheathed-waxed strand), either otherwise an adhesion to transmit efforts of shear between the sheath and the strand (coherent strand).
- the filling product is typically a polymer adhered to the wires and to inside the sheath.
- the coherent strand is notably usable when it is necessary to transmit tangential forces from the sheath to the metal wires, this which is the case for example in cables carrying suspension bridges in which the load transmitted by each hanger causes a tangential force on the cable at the level of the hanger (see EP-A-0 855,471).
- the cable comprising one or more sheathed-greased or sheathed-waxed strands is subjected to voltage variations and temperature variations. These variations cause different lengths of the sheath and stranded wires since the plastic and metal generally do not have the same coefficients elasticity and thermal expansion.
- the sheath usually has a coefficient of thermal expansion much higher than the sons. If we consider the case of steel and HDPE commonly used in this kind of strand there is a ratio of around 20 between the two coefficients of thermal expansion. This can result in damage sheath that gets too long in hot weather, or conversely a loss of tightness in the portions end of the cable when it is cold, the sheath is retracting too much.
- the object of the present invention is in particular to avoid these disadvantages while retaining at least some of the advantages of the sheathed-greased or sheathed-waxed strand.
- a strand according to the invention comprises a group of twisted metal strands, a plastic sheath containing said group, and a flexible filling product filling internal gaps located between the twisted strands of the group and a peripheral gap located between the periphery of the group. and the inside of the sheath.
- the helical ribs on the face inner of the sheath penetrate into the grooves formed between the adjacent peripheral strands. Cooperation between these ribs and these grooves allows the adaptation of macroscopic deformations. The amount of product from filling is adjusted so that this penetration does not is not too large, which could block the sheath on the strands by form adhesion and therefore to generate constraints in the sheath, in particular shear, likely to tear it.
- the sheath of the strand has a thickness of at least ⁇ / 5, where ⁇ is the diameter of strands located on the periphery of the grouping of twisted strands.
- Another aspect of the invention relates to a use of a strand as defined above as structural element working in traction in a construction work.
- the strand can in particular make part of a shroud of a structure suspension system or a prestressing cable for the structure.
- the wiping step is advantageously accomplished at by means of a free rotating template, through which passes the group of coated strands.
- the strand 1 shown in Figure 1 consists of several strands 2 of steel twisted together, which are here seven in number, namely a central strand and six strands peripheral devices.
- the group of twisted strands 2 is contained in an outer sheath 4 of flexible plastic which may be a polyolefin, in particular HDPE, or else a polyamide.
- S1 the area cumulative of the aforementioned curvilinear triangles corresponding to the internal interstices 5, which are six in number the example considered.
- S2 the area cumulative, in a cross section of the strand, intervals 7 between the periphery of the grouping of steel strands 2 and the smallest circle C in which this group is registered. These intervals 7 are also at number of six in the example considered, the circle C being tangent to the six peripheral strands of the strand.
- the peripheral gap 6 has, in the cross section of the strand, an area between P ⁇ e min and 0.6 ⁇ S2, where e min represents a minimum thickness of product 3, which is equal to 0.05 mm.
- the minimum thickness e of the outer sheath 4 is preferably ⁇ / 5 or more.
- stranded strands obtained by conventional methods of wire drawing.
- These strands 2 may have been, in a known manner, subjected to electrochemical treatment such as galvanizing or galfanisation, aimed at improving their corrosion resistance.
- This can be done by tightening the ends of the section in two jaws 11 subjected to a torque relative torsion in the opposite direction of the pitch stranding.
- the flexible filling product is introduced by projection or injection into the untwisted section.
- the strands tighten in trapping product 3 in internal gaps 5 and by overflowing this product on the periphery of the grouping of strands.
- Downstream of the template 12 is the sheath plastic injection system 16 4 then the extrusion die 10 through which the strand is pulled to define its outer shape as well as the thickness e of the sheath.
- the wiping template 12 is illustrated in FIG. 4. It is mounted on the inner ring of a ball bearing 13 so as to be free to rotate.
- the strand coated with the product 3 passes through an opening 14 in the template 12, the area of which is between S + S min and S + S max , where S is the cumulative area of the sections of the seven strands 2.
- the shape of this opening 14 follows that of the group of strands associated with the peripheral gap 6. Its periphery thus has six teeth 15 which are housed in the grooves existing between the peripheral strands of the strand. The free rotation of the template 12 when the strand is pulled allows these teeth 15 to follow the helical path of the grooves while maintaining the desired quantity of product 3.
- the strand thus produced is adapted to form a structural element working in traction in a construction work, which meets the requirements well exposed in the introduction. It will be advantageously used in guy lines (see for example EP-A-0 323 285) or prestressing cables.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ropes Or Cables (AREA)
- Insulated Conductors (AREA)
- Bridges Or Land Bridges (AREA)
- Reinforcement Elements For Buildings (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Manufacturing Of Electric Cables (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0015670A FR2817566B1 (fr) | 2000-12-04 | 2000-12-04 | Toron individuellement protege, son utilisation dans la construction, et procede de fabrication |
FR0015670 | 2000-12-04 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1211350A1 true EP1211350A1 (de) | 2002-06-05 |
EP1211350B1 EP1211350B1 (de) | 2004-02-18 |
EP1211350B3 EP1211350B3 (de) | 2009-07-22 |
Family
ID=8857194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01403085A Expired - Lifetime EP1211350B3 (de) | 2000-12-04 | 2001-11-30 | Individuell geschützte Litze, deren Verwendung in der Bautechnik und Verfahren zu deren Herstellung |
Country Status (19)
Country | Link |
---|---|
US (1) | US6692829B2 (de) |
EP (1) | EP1211350B3 (de) |
JP (1) | JP2002235291A (de) |
KR (1) | KR100513357B1 (de) |
CN (1) | CN1192141C (de) |
AR (1) | AR032483A1 (de) |
AT (1) | ATE259904T1 (de) |
AU (1) | AU770955B2 (de) |
BR (1) | BRPI0105770B8 (de) |
CA (1) | CA2364595C (de) |
DE (2) | DE60102061T4 (de) |
DK (1) | DK1211350T5 (de) |
ES (1) | ES2215867T7 (de) |
FR (1) | FR2817566B1 (de) |
HK (1) | HK1044575B (de) |
MX (1) | MXPA01012437A (de) |
MY (1) | MY128643A (de) |
PL (1) | PL202247B1 (de) |
PT (1) | PT1211350E (de) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010069837A1 (en) * | 2008-12-18 | 2010-06-24 | Nv Bekaert Sa | A cord for reinforcement of a cementitious matrix |
FR2950094A1 (fr) * | 2009-09-16 | 2011-03-18 | Soletanche Freyssinet | Systeme pour ameliorer l'etancheite d'un reservoir et procede associe |
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WO2012017135A1 (fr) | 2010-08-03 | 2012-02-09 | Soletanche Freyssinet | Toron, câble de structure et procédé de fabrication du toron |
CN101775781B (zh) * | 2010-01-09 | 2012-08-15 | 深圳中建院建筑科技有限公司 | 一种长效建筑拉索 |
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US4623504A (en) | 1984-10-22 | 1986-11-18 | Smith Larry F | Method and apparatus for making post-tensioning tendons for concrete |
EP0323285A1 (de) * | 1987-11-25 | 1989-07-05 | Freyssinet International (Stup) | Schrägseile und deren Verankerung |
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JPH0270852A (ja) * | 1988-09-01 | 1990-03-09 | Sumitomo Electric Ind Ltd | 高耐食性pc鋼より線の製造方法 |
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- 2001-11-23 AR ARP010105467A patent/AR032483A1/es active IP Right Grant
- 2001-11-28 MY MYPI20015433A patent/MY128643A/en unknown
- 2001-11-30 AT AT01403085T patent/ATE259904T1/de active
- 2001-11-30 PT PT01403085T patent/PT1211350E/pt unknown
- 2001-11-30 DE DE60102061T patent/DE60102061T4/de not_active Expired - Lifetime
- 2001-11-30 DK DK01403085T patent/DK1211350T5/da active
- 2001-11-30 EP EP01403085A patent/EP1211350B3/de not_active Expired - Lifetime
- 2001-11-30 DE DE60102061A patent/DE60102061D1/de not_active Expired - Lifetime
- 2001-11-30 ES ES01403085T patent/ES2215867T7/es active Active
- 2001-12-03 KR KR10-2001-0075957A patent/KR100513357B1/ko active IP Right Grant
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- 2001-12-03 MX MXPA01012437A patent/MXPA01012437A/es active IP Right Grant
- 2001-12-03 PL PL351016A patent/PL202247B1/pl unknown
- 2001-12-03 CA CA002364595A patent/CA2364595C/en not_active Expired - Lifetime
- 2001-12-04 JP JP2001369873A patent/JP2002235291A/ja active Pending
- 2001-12-04 US US10/006,107 patent/US6692829B2/en not_active Expired - Lifetime
- 2001-12-04 CN CNB011427221A patent/CN1192141C/zh not_active Expired - Lifetime
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- 2002-08-06 HK HK02105726.8A patent/HK1044575B/zh not_active IP Right Cessation
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US4623504A (en) | 1984-10-22 | 1986-11-18 | Smith Larry F | Method and apparatus for making post-tensioning tendons for concrete |
FR2579236A1 (fr) * | 1985-03-19 | 1986-09-26 | Elf France | Cable de precontrainte prefabrique et son procede de fabrication |
EP0323285A1 (de) * | 1987-11-25 | 1989-07-05 | Freyssinet International (Stup) | Schrägseile und deren Verankerung |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2010069837A1 (en) * | 2008-12-18 | 2010-06-24 | Nv Bekaert Sa | A cord for reinforcement of a cementitious matrix |
US8336285B2 (en) | 2008-12-18 | 2012-12-25 | Nv Bekaert Sa | Cord for reinforcement of a cementitious matrix |
FR2950094A1 (fr) * | 2009-09-16 | 2011-03-18 | Soletanche Freyssinet | Systeme pour ameliorer l'etancheite d'un reservoir et procede associe |
WO2011076866A1 (en) | 2009-12-23 | 2011-06-30 | Soletanche Freyssinet | Tower having a pre-stressed concrete column and construction method |
EP2339094A1 (de) | 2009-12-23 | 2011-06-29 | Soletanche Freyssinet | Turm mit vorgespannter Betonsäule und Bauverfahren |
EP2339094B1 (de) | 2009-12-23 | 2016-06-15 | Soletanche Freyssinet | Turm mit vorgespannter Betonsäule und Bauverfahren |
CN101775781B (zh) * | 2010-01-09 | 2012-08-15 | 深圳中建院建筑科技有限公司 | 一种长效建筑拉索 |
WO2012017135A1 (fr) | 2010-08-03 | 2012-02-09 | Soletanche Freyssinet | Toron, câble de structure et procédé de fabrication du toron |
US9085832B2 (en) | 2010-08-03 | 2015-07-21 | Soletanche Freyssinet | Strand, structural cable and method for manufacturing the strand |
WO2015022068A3 (en) * | 2013-08-15 | 2015-07-30 | Muehlhan Ag | Apparatus for surface treatment of an elongate object |
US9649667B2 (en) | 2013-08-15 | 2017-05-16 | Muehlhan Ag | Apparatus for surface treatment of an elongate object |
WO2020025872A1 (fr) | 2018-07-31 | 2020-02-06 | Soletanche Freyssinet | Procede de fabrication d'un toron individuellement gaine, toron ainsi obtenu et installation de fabrication du toron |
CN110607706A (zh) * | 2019-09-27 | 2019-12-24 | 丹阳市银海镍铬化工有限公司 | 一种抗扭且能屏蔽电磁辐射的钢绞线 |
Also Published As
Publication number | Publication date |
---|---|
BRPI0105770B8 (pt) | 2016-07-05 |
BR0105770A (pt) | 2002-07-16 |
PL202247B1 (pl) | 2009-06-30 |
CN1357665A (zh) | 2002-07-10 |
ES2215867T7 (es) | 2009-11-05 |
EP1211350B3 (de) | 2009-07-22 |
FR2817566B1 (fr) | 2003-02-07 |
PT1211350E (pt) | 2004-07-30 |
HK1044575B (zh) | 2004-12-24 |
DK1211350T5 (da) | 2009-10-05 |
PL351016A1 (en) | 2002-06-17 |
KR20020043447A (ko) | 2002-06-10 |
AR032483A1 (es) | 2003-11-12 |
AU770955B2 (en) | 2004-03-11 |
DE60102061D1 (de) | 2004-03-25 |
EP1211350B1 (de) | 2004-02-18 |
BR0105770B1 (pt) | 2010-05-04 |
CA2364595C (en) | 2006-07-25 |
AU9703401A (en) | 2002-06-06 |
DE60102061T4 (de) | 2009-10-22 |
DK1211350T3 (da) | 2004-06-21 |
KR100513357B1 (ko) | 2005-09-07 |
CN1192141C (zh) | 2005-03-09 |
ATE259904T1 (de) | 2004-03-15 |
HK1044575A1 (en) | 2002-10-25 |
MY128643A (en) | 2007-02-28 |
MXPA01012437A (es) | 2004-11-10 |
DE60102061T2 (de) | 2004-12-09 |
ES2215867T3 (es) | 2004-10-16 |
US6692829B2 (en) | 2004-02-17 |
FR2817566A1 (fr) | 2002-06-07 |
CA2364595A1 (en) | 2002-06-04 |
JP2002235291A (ja) | 2002-08-23 |
US20020086158A1 (en) | 2002-07-04 |
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