CN101210447B - Steel strand integral bundle extrusion anchor cable guy cable - Google Patents
Steel strand integral bundle extrusion anchor cable guy cable Download PDFInfo
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- CN101210447B CN101210447B CN2007100512245A CN200710051224A CN101210447B CN 101210447 B CN101210447 B CN 101210447B CN 2007100512245 A CN2007100512245 A CN 2007100512245A CN 200710051224 A CN200710051224 A CN 200710051224A CN 101210447 B CN101210447 B CN 101210447B
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Abstract
The invention relates to a draw-rope used in major construction projects, in particular to an anchor draw-rope formed by compressing a whole bundle of stranded steel ropes and composed of a finished stranded steel rope body and anchor fasteners on the two ends. The anchor fastener is divided into an anchor fastening unit and a sealing unit. The anchor fastening unit comprises a compressing anchorage sleeve, a screw nut and an end cover. Mounting holes for embedding the stranded steel rope in equal number with the compressed stranded steel ropes are drilled inside the compressing anchorage sleeve; the stranded steel ropes are disposed in the mounting holes and compressed with the anchorage sleeve into a whole; main components of the sealing unit includes a sealing cylinder, a sealing ring and antiseptic materials. The end of the compressing anchorage sleeve is provided with external screw thread; one end of the sealing cylinder is sleeved on the end of the compressing anchorage sleeve through the screw thread; the sealing ring and a restraining ring sleeved on the rope body are arranged in sequence inside the other end of the sealing cylinder; a gland bush is screwed on the sealingcylinder through the inner screw thread of the sealing cylinder which is filled with antiseptic materials; a through-slit is opened between the mounting holes for embedding the stranded steel ropes inside the compressing anchorage sleeve. The stranded steel rope in the anchor rope is able to perform firm anchoring, not easy to slip off under high-frequency vibration, small in anchor head volume and low in manufacture cost.
Description
Technical field:
What the present invention relates to is the drag-line that a kind of large-scale construction engineering adopts, a kind of integral bundle extrusion anchor cable guy cable.
Background technology:
At present, the drag-line that heavy constructions such as Bridges in Our Country, stadiums are adopted mainly contains chill casting anchor rope, hot-cast anchor rope and clip type anchor cable.And the drag-line of squash type anchorage style is because easily slippage in practice, and almost do not adopt.Because chill casting anchor, hot-cast anchor and these three kinds of forms of intermediate plate anchor rope, the anchor head size is bigger, and cost is higher.Application number is the drag-line that 03271782.2 utility model patent discloses a kind of whole bundle extruding anchor structure form for this reason, though it is bigger to have solved the anchor head size, the cost problem of higher also has the following disadvantages:
1, anchorage cover total length is extruding, when cable body steel strand radical more for a long time, corresponding anchorage cover is longer, can occur the crooked phenomenon of anchorage cover in extrusion process, is unfavorable for the carrying out of later stage operation, and can influences the quality of whole cable body.
2, when the cable body tonnage is big, the situation of steel strand slippage might appear.
3, pushed after, the termination steel strand are in the state that exposes that contacts with air, water or steam can enter anchorage cover internal corrosion steel strand, the antiseptic effect that does not reach along the gap of steel strand steel wire.
4, for 6 above steel wire bundles, because steel strand need multilayer to arrange, the steel strand in intermediate layer are littler than the extruding force that outer field steel strand are subjected to, slippage easily.
5, when stretching force during big or high-frequency vibration, steel strand might slippage after the through hole interior diameter of extruded sleeve diminishes.
Summary of the invention:
The technical problem to be solved in the present invention is: a kind of steel strand integral bundle extrusion anchor cable that has improved is provided, it can make each root steel strand of anchor cable when extruding, can be subjected to enough extruding forces, solve reliably anchoring of steel strand, be subjected to easily slippage behind the high-frequency vibration, and the anchor head volume that these three kinds of forms of existing chill casting anchor, hot-cast anchor and intermediate plate anchor rope exist is big, the problem that cost of manufacture is high.
The technical scheme that solves the problems of the technologies described above is: a kind of steel strand integral bundle extrusion anchor cable guy cable, anchoring piece by steel strand cable body and two ends thereof is formed, described anchoring piece is divided into anchoring unit and sealing unit, the anchoring unit comprises extruding anchorage cover, nut, end cap and auxiliary anchor part, there is end cap the end, be drilled with in the extruding anchorage cover and be extruded N the steel strand inlaid hole that the steel strand radical equates, steel strand are placed in the extruding anchorage cover steel strand inlaid hole and with the extruding of extruding anchorage cover and are one, the sealing unit critical piece comprises sealing drum, sealing ring, anti-corrosion material, there is external screw thread extruding anchorage cover end, sealing drum one end overlaps the end by external thread sleeve at the extruding anchorage, the sealing ring and the constraint circle that are enclosed within on the cable body place in the sealing drum other end successively, gland by on the sealing drum internal thread on sealing drum, be full of anti-corrosion material in the sealing drum, the span of N is 2≤N≤1000.
Because adopt said structure, the present invention's steel strand integral bundle extrusion anchor cable guy cable has following beneficial effect:
1, anchor cable adopts whole bundle extruding and the system Suo Fangfa of each root steel strand independent stressed has improved the evenly stressed of steel strand, and the outer steel strand of extruding anchorage cover are injury-free, and the reliability of rope, durability are improved.This anchor cable is done static loading test, all more common anchor cable height of anchoring efficient and elongation per unit length.
2, the anchor head of anchor cable partly is divided into two sections, one section extruding anchoring, and back one section is sealing function.With the sealing of end face steel strand, the rear end seals with sealing drum extruding anchorage cover front end, makes steel strand be in whole sealing status with gland, and all junctions seal with fluid sealant, and antiseptic property is good.
3, in the extruding anchorage cover between each hole of steel strand inlaid hole spacing less than 30mm, make steel strand by rope to the angle the extruding anchorage cover less than 30 ', steel strand are more concentrated parallel with respect to the guy anchor of other form in the anchor head, reduced the flexural stress that steel strand additionally bear owing to bending, thereby reduced the fatigue stress upper limit that steel strand bear, the fatigue life of having improved drag-line.
4, when the steel strand radical more for a long time, between extruding anchorage cover endoporus and hole, cut a slit of running through, gap width is 0.2～4mm, the distortion of slit, back is squeezed, the deflection of anchorage cover is partly pushed at the increase center, the steel strand of can holding with a firm grip more reliably, to adapt to because the extruding anchoring of the different-diameter steel strand that the production error causes.
5, owing to place the part that steel strand are swollen in the end, it is more reliable that steel strand are bonded, and improved the reliability of anchoring.
6, application is wide, not only is used for bridge, building guy cable, also can be used as external tendon and reaches the demanding short prestressed cable of amount of recovery.
Below, the technical characterictic to the present invention's steel strand integral bundle extrusion anchor cable guy cable is further described in conjunction with the accompanying drawings and embodiments.
Description of drawings:
Fig. 1: the structural representation of a kind of steel strand integral bundle extrusion anchor cable guy cable of the present invention (end is an example);
Fig. 2: extruding anchorage nested structure schematic diagram;
Fig. 2-1: the master looks the A of sectional view, Figure 22: Fig. 2-1 to view;
Fig. 3: be used to one of stayed structure schematic diagram of making integral bundle extrusion anchor cable;
Fig. 4: be used to make integral bundle extrusion anchor cable the stayed structure schematic diagram two;
Fig. 5: end cap has boss, steel strand end to be placed with to make the swell extruding anchorage cover end construction schematic diagram of part of steel strand;
Fig. 6: taper sheath structural representation.
Among the figure:
1-end cap, 11-hole for hoist, 2-nut, 3-extruding anchorage cover, 31-extruding anchorage cover external screw thread, steel strand inlaid hole in 32-extruding anchorage cover, the end seam of 33-extruding anchorage cover termination, slit between 34-aperture, 4-cable body, 41,45-PC steel strand, 42,46-anticorrosion grease, 43,48-high-strength polyester band, 44, the outer HDPE cover of 49-cable body, HDPE cover in 47-unbonded tendon, 5-anti-corrosion material, 6-sealing drum, 61-sealing drum internal thread, 62-screw plug, 7-sealing ring, 8-constraint circle, 9-gland, 10-taper sheath.
The specific embodiment:
A kind of steel strand integral bundle extrusion anchor cable guy cable.Anchoring piece by steel strand finished product rustling sound body and two ends thereof is formed, described anchoring piece is divided into anchoring unit and sealing unit, the anchoring unit comprises extruding anchorage cover 3, nut 2, end cap 1 and auxiliary anchor part, there is end cap 1 end, be drilled with in the extruding anchorage cover 3 and be extruded N that the steel strand radical equates (in the present embodiment, N=19) individual steel strand inlaid hole 32, steel strand 41 are placed in the steel strand inlaid hole 32 of extruding anchorage cover 3 and with the extruding of extruding anchorage cover and are one, (see Fig. 1, Fig. 2), make each root steel strand that enough extruding contact surfaces all be arranged, the every steel strand in extruding back are stressed evenly also relatively independent; Sealing unit comprises sealing drum 6, sealing ring 7, anti-corrosion material 5, the extruding anchorage overlaps 3 ends external screw thread 31, sealing drum 6 one ends are enclosed within the extruding anchorage by external screw thread 31 and overlap 3 ends, the sealing ring 7 and the constraint circle 8 that are enclosed within on the cable body place in sealing drum 6 other ends successively, gland 9 by on the sealing drum internal thread 61 on sealing drum 6, be full of anti-corrosion material 5 in the sealing drum 6; Spacing in the extruding anchorage cover 3 between steel strand inlaid hole 32 each hole is generally less than 30mm, and steel strand inlaid hole 32 diameters are than the big 0～3mm of nominal diameter of steel strand 41.
In the embodiment of the invention, described anti-corrosion material 5 is meant a kind of among epoxy resin, epoxy mortar, cement mortar, anticorrosion polyurethane or the anticorrosion grease.
Steel strand finished product rustling sound body is the outer finished product rope (referring to Fig. 4) that squeezes outer HDPE sheath 49 after unbonded tendon steel strand 45 are wrapped in the present embodiment, and every PC steel strand 45 outer internal layer HDPE sheaths 47 in addition have anticorrosion grease 46 in it.
As a kind of conversion of the embodiment of the invention, this finished product rope can be the outer finished product rope (referring to Fig. 3) that squeezes HDPE sheath 44 after the high-strength polyester band 43 of PC steel strand 41 usefulness is wrapped.
For making between steel strand 41 and the anchorage cover 3 squeezing effect better, can earlier extrude indentation in steel strand 41 extruded segment and push again with instrument;
As a kind of conversion of present embodiment, can place the part that steel strand are swollen in the steel strand end, it is more reliable that steel strand are bonded.For example: can be placed with 1～6 draw point between anchorage overlaps the steel wire of each steel strand of end, the draw point cross section is circle or polygon, and length is 1/10 of extruding steel strand length; For increasing effect, draw point is suitably twisting also, embeds in the steel wire gap of every steel strand.After the steel strand front end is placed draw point, will increase the thrust of end steel strand during extruding anchorage cover, the terminal of overlapping at the extruding anchorage forms wedge, and when being subjected to big pulling force or high-frequency vibration, steel strand are difficult for slippage; Can also in the central hair of every steel strand, lay taper sheath 10, make steel strand extruding back bond effect better (referring to Fig. 5, Fig. 6) with the anchorage cover.
A kind of conversion as the embodiment of the invention, the number N of the steel strand inlaid hole 32 that is drilled with in the described extruding anchorage cover 3 can increase, also can reduce, generally be extruded the steel strand radical and equate that the span of N generally is 2≤N≤100, as required, the numerical value of N can also increase, its span is 2≤N≤200,2≤N≤300,2≤N≤400,2≤N≤500 are up to 2≤N≤1000.
When the steel strand radical more, for avoiding the anchorage cover to be squeezed the back intermediate deformation when not enough, between Kong Yukong, have a slit of running through 34 (referring to Fig. 2-2), it can be slit of incision between cycle hole in extruding anchorage cover and the inner ring hole, slot between two adjacent holes also can going up in any direction, to increase the deflection of inner ring hole, diameter error when making anchorage overlap each hole simultaneously can to adapt to steel strand and produce; This slit 34 width d are 0.2～3mm.
For preventing that the end from having steam to enter the corrosion twisted wire, end cap 1 is put in anchorage cover extrusion process, and more firm is compressed in the anchorage cover.
As a kind of conversion of the embodiment of the invention,, overlap 3 terminations at anchorage and have the external screw thread 31 that is used to connect tensioning equipment for ease of stretch-draw.
As a kind of conversion of the embodiment of the invention, be convenient lifting, end cap 1 has a boss, and a hole for hoist 11 is arranged on the boss.
Claims (11)
1. steel strand integral bundle extrusion anchor cable guy cable, anchoring piece by steel strand finished product rustling sound body and two ends thereof is formed, it is characterized in that: described anchoring piece is divided into anchoring unit and sealing unit, the anchoring unit comprises extruding anchorage cover, nut, end cap and auxiliary anchor part, there is end cap extruding anchorage cover end, be drilled with in the extruding anchorage cover and be extruded N the steel strand inlaid hole that the steel strand radical equates, steel strand are placed in the steel strand inlaid hole of extruding anchorage cover and with the extruding of extruding anchorage cover and are one, the sealing unit critical piece comprises sealing drum, sealing ring, anti-corrosion material, there is external screw thread extruding anchorage cover end, sealing drum one end overlaps the end by external thread sleeve at the extruding anchorage, the sealing ring and the constraint circle that are enclosed within on the cable body place in the sealing drum other end successively, gland by on the sealing drum internal thread on sealing drum, be full of anti-corrosion material in the sealing drum, the span of N is: 2≤N≤1000.
2. a kind of steel strand integral bundle extrusion anchor cable guy cable according to claim 1 is characterized in that: the spacing in the described extruding anchorage cover between each hole of steel strand inlaid hole is less than 30mm, and steel strand inlaid hole diameter is than the big 0～3mm of nominal diameter of steel strand.
3. a kind of steel strand integral bundle extrusion anchor cable guy cable according to claim 1 and 2 is characterized in that: the steel strand extruded segment has the indentation that is extruded by instrument.
4. a kind of steel strand integral bundle extrusion anchor cable guy cable according to claim 1 and 2, it is characterized in that: between the steel wire of each steel strand of anchorage cover end, be placed with 1～6 draw point, the draw point cross section is circle or polygon, length is 1/10 of extruding steel strand length, and the draw point shape is straight or the turn-knob shape.
5. a kind of steel strand integral bundle extrusion anchor cable guy cable according to claim 3, it is characterized in that: between the steel wire of each steel strand of anchorage cover end, be placed with 1～6 draw point, the draw point cross section is circle or polygon, length is 1/10 of extruding steel strand length, and the draw point shape is straight or the turn-knob shape.
6. a kind of steel strand integral bundle extrusion anchor cable guy cable according to claim 1 and 2 is characterized in that: lay taper sheath in the central hair of every steel strand.
7. a kind of steel strand integral bundle extrusion anchor cable guy cable according to claim 3 is characterized in that: lay taper sheath in the central hair of every steel strand.
8. a kind of steel strand integral bundle extrusion anchor cable guy cable according to claim 1 and 2 is characterized in that: have a slit of running through between the Kong Yukong of steel strand inlaid hole in extruding anchorage cover, the width in this slit is 0.2～3mm.
9. a kind of steel strand integral bundle extrusion anchor cable guy cable according to claim 3 is characterized in that: have a slit of running through between the Kong Yukong of steel strand inlaid hole in extruding anchorage cover, the width in this slit is 0.2～3mm.
10. a kind of steel strand integral bundle extrusion anchor cable guy cable according to claim 5 is characterized in that: have a slit of running through between the Kong Yukong of steel strand inlaid hole in extruding anchorage cover, the width in this slit is 0.2～3mm.
11. a kind of steel strand integral bundle extrusion anchor cable guy cable according to claim 7 is characterized in that: have a slit of running through between the Kong Yukong of steel strand inlaid hole in extruding anchorage cover, the width in this slit is 0.2～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100512245A CN101210447B (en) | 2006-12-31 | 2006-12-31 | Steel strand integral bundle extrusion anchor cable guy cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100512245A CN101210447B (en) | 2006-12-31 | 2006-12-31 | Steel strand integral bundle extrusion anchor cable guy cable |
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| CN101210447A CN101210447A (en) | 2008-07-02 |
| CN101210447B true CN101210447B (en) | 2010-12-22 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587278A (en) * | 2012-03-09 | 2012-07-18 | 柳州豪姆机械有限公司 | Chill-cast steel-stranded anchor cable |
| CN102535336B (en) * | 2012-03-16 | 2014-07-02 | 柳州欧维姆机械股份有限公司 | Composite prestressed bar finished guy cable and manufacturing method thereof |
| CN102587279B (en) * | 2012-03-16 | 2014-11-26 | 柳州欧维姆机械股份有限公司 | Steel strand finished stay cable and manufacturing method thereof |
| GB2514621B (en) * | 2013-05-31 | 2020-04-15 | Vsl Int Ag | Cable anchorage |
| CN103850181B (en) * | 2014-01-28 | 2016-06-01 | 柳州欧维姆机械股份有限公司 | Dismantled and assembled dragline anchorage sealed structure and realize ground tackle sealing method |
| CN108035255B (en) * | 2017-12-26 | 2024-03-01 | 浙锚科技股份有限公司 | Carbon fiber stay cable system |
| CN109098086A (en) * | 2018-10-22 | 2018-12-28 | 湖南路桥建设集团有限责任公司 | A kind of anticorrosion structure and method of suspension cable anchor head steel strand wires |
| CN110025350B (en) * | 2019-05-08 | 2024-06-18 | 广东脉搏医疗科技有限公司 | Adjustable left atrial appendage occluder with sliding damping |
| CN110847038A (en) * | 2019-12-22 | 2020-02-28 | 智性纤维复合加固南通有限公司 | Self-sensing parallel steel wire inhaul cable and manufacturing method thereof |
| CN110939062A (en) * | 2019-12-22 | 2020-03-31 | 智性纤维复合加固南通有限公司 | Self-sensing extrusion inhaul cable and manufacturing method thereof |
| CN112942102A (en) * | 2021-02-03 | 2021-06-11 | 柳州欧维姆机械股份有限公司 | Prestressed inhaul cable anchorage device with elastic sealing cylinder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0089656A3 (en) * | 1982-03-24 | 1985-04-10 | International Intec Company Establishment | Injection anchorages to be put in predrilled holes |
| CN2658263Y (en) * | 2003-07-01 | 2004-11-24 | 柳州海威姆建筑机械有限公司 | Steel strand whole bundle extrusion anchoring device |
| CN2795330Y (en) * | 2005-03-09 | 2006-07-12 | 柳州欧维姆机械股份有限公司 | Anchor cable with sealed extruded anchor head |
| CN200999418Y (en) * | 2006-12-31 | 2008-01-02 | 柳州欧维姆机械股份有限公司 | Steel strand hank extruding anchor wire bracing cable |
-
2006
- 2006-12-31 CN CN2007100512245A patent/CN101210447B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0089656A3 (en) * | 1982-03-24 | 1985-04-10 | International Intec Company Establishment | Injection anchorages to be put in predrilled holes |
| CN2658263Y (en) * | 2003-07-01 | 2004-11-24 | 柳州海威姆建筑机械有限公司 | Steel strand whole bundle extrusion anchoring device |
| CN2795330Y (en) * | 2005-03-09 | 2006-07-12 | 柳州欧维姆机械股份有限公司 | Anchor cable with sealed extruded anchor head |
| CN200999418Y (en) * | 2006-12-31 | 2008-01-02 | 柳州欧维姆机械股份有限公司 | Steel strand hank extruding anchor wire bracing cable |
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| CN101210447A (en) | 2008-07-02 |
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