CN105780651A - Shockproof inhaul cable - Google Patents
Shockproof inhaul cable Download PDFInfo
- Publication number
- CN105780651A CN105780651A CN201410824429.2A CN201410824429A CN105780651A CN 105780651 A CN105780651 A CN 105780651A CN 201410824429 A CN201410824429 A CN 201410824429A CN 105780651 A CN105780651 A CN 105780651A
- Authority
- CN
- China
- Prior art keywords
- strand
- filler wires
- drag
- line
- filled section
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- 239000000945 filler Substances 0.000 claims description 43
- 210000002435 tendon Anatomy 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 8
- 239000000725 suspension Substances 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 abstract 2
- 239000011241 protective layer Substances 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 5
- 238000004049 embossing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
- Ropes Or Cables (AREA)
Abstract
The invention relates to the field of suspension cables for a bridge, in particular to a shockproof inhaul cable. The shockproof inhaul cable comprises a steel wire bundle (1) and anchor tools (2) and is characterized by further comprising filling sections (12) and a protective layer (3); the length of filling steel wires (11) is smaller than that of the steel wire bundle (1); the filling steel wires (11) are embedded in gaps in the outmost layer of the steel wire bundle (1) in a segmental manner; each filling section (12) comprises at least two filling steel wires (11) distributed around the center axis of a cable strand (10); each filling steel wire (11) is embedded in the outmost layer of the cable strand (10); and the outer side faces of the cable strand (10) and the filling steel wires (11) are coated with and wrapped in the protective layer (3). By the adoption of the shockproof inhaul cable, vibration transmission is stopped, resonance is eliminated, and the safety and the service life of the inhaul cable are guaranteed.
Description
Technical field
The present invention relates to the suspension cable field for bridge, specifically a kind of antivibration drag-line.
Background technology
Suspension cable bridge is current topmost bridge type in the world, and the drag-line of almost all of suspension cable bridge all meets with the harm that various vibration brings, such as wind-induced vibration, and the resonance that the dynamic load such as vehicle causes.First the vibration of drag-line influences whether safety and the life-span of drag-line, and the accident caused due to inhaul cable vibration also happens occasionally.
The antivibration method of current drag-line mainly includes the several ways such as external antivibrator, built-in rubber antivibrator, Double helix anti-wind, rain and vibration drag-line, embossing drag-line.External antivibrator is to have elastic puller system in the setting near dragline anchorage position, drag-line is applied lateral pull, is generally adopted viscous damping mode.The method is due near ground tackle position, and the overall antivibration effect of drag-line is poor.Internal damper is the rubber ring installed in cable guide pipe, limits cable body vibration by rubber ring and cable guide pipe, owing near ground tackle, the method can play bending resistance effect and protect ground tackle, but its antivibration effect is poor, and rubber ring is easily aging.Whole drag-line is played the effect reducing vibration by Double helix anti-wind, rain and vibration drag-line and embossing drag-line, and its mechanism of action is in that to rain in rain wind induced vibration effect to cut off line, makes rainwater depart from drag-line and is formed without rain line, thus stoping rainwater to participate in the resonance of drag-line.But the embossing of its surface configuration and helix, increase the wind surface of drag-line, it controls the limited efficiency that wind shakes.
Summary of the invention
In order to overcome the defect of prior art, it is provided that a kind of suspension cable equipment effectively preventing cable-stayed bridge cable from resonating, the invention discloses a kind of antivibration drag-line.
The present invention reaches goal of the invention by following technical solution:
A kind of antivibration drag-line, including steel tendon and ground tackle, steel tendon is wound in strand, and the two ends of strand are separately fixed in ground tackle, it is characterized in that: also include the filled section and the sheath that are made up of the filler wires around strand central axis,
The quantity of filled section is at least 1, the length of filler wires is less than the length of steel tendon, filler wires piecewise is embedded in the outermost gap of steel tendon, and each filled section includes the filler wires that at least 2 rhizospheres are distributed around strand central axis, and each section of filler wires is all embedded in the outermost layer of strand；Sheath is coated with and is wrapped in the lateral surface of strand and filler wires.
Described antivibration drag-line, is characterized in that: the filler wires of each filled section is evenly distributed around the central axis of strand.
Described antivibration drag-line, is characterized in that: when the quantity of filled section is 1, the middle part of strand is located in filled section；When the quantity of filled section is more than 1, each filled section being axially evenly distributed along strand；In each filled section, the ratio of filler wires radical and steel tendon radical is 0.25～0.45；Filler wires is the 10%～40% of steel tendon length along the length sum that strand is axial.
Described antivibration drag-line, is characterized in that: the length of filler wires is not more than 5m, and the length of steel tendon is not more than 1000m, and the quantity of filled section is not more than 80.
Described antivibration drag-line, is characterized in that: the material of filler wires is identical with the material of steel tendon.
When the present invention manufactures, first make strand with steel tendon, be then embedded in filler wires in the outermost gap of steel tendon, the sheath that the outermost layer extrusion molding at strand is made up of plastics, ground tackle is finally installed at the two ends of strand.
The invention provides a kind of antivibration drag-line, reduce cable body vibration by changing the structure of drag-line self, reduce the resonance of drag-line further.Covibration is the situation taken exercises with bigger amplitude occurred under specific frequency between physical system, the frequency of vibration between physical system consistent or close time, the amplitude of its generation can be gradually increased so that make physical system disintegrate；And frequency of vibration when between object inconsistent time, its amplitude can be pind down mutually, thus being gradually reduced.The present invention adds, by steel tendon in strand a certain section, the filler wires that length is inconsistent, the rigidity making filled section strengthens, destroy the overall uniformity of strand, after strand is produced vibration by External Force Acting, the frequency of strand changes in filled section, continuing to continue to transmit on strand thus having blocked amplitude, eliminating and producing the condition that resonance is required.
The invention has the beneficial effects as follows: block amplitude transmission, eliminate resonance, it is ensured that the safety of drag-line and service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is A-A in Fig. 1 to sectional view.
Detailed description of the invention
A kind of antivibration drag-line, including steel tendon 1, ground tackle 2, the filled section 12 being made up of the filler wires 11 around strand 10 central axis and sheath 3, as depicted in figs. 1 and 2, concrete structure is:
Steel tendon 1 is wound in strand 10, and the two ends of strand 10 are separately fixed in ground tackle 2；
The quantity of filled section 12 is at least 1, the length of filler wires 11 is less than the length of steel tendon 1, filler wires 11 piecewise is embedded in the outermost gap of steel tendon 2, each filled section 12 includes the filler wires 11 that at least 2 rhizospheres are distributed around strand 10 central axis, and each section of filler wires 11 is all embedded in the outermost layer of strand 10；Sheath 3 is coated with and is wrapped in strand 10 and the lateral surface of filler wires 11；
In the present embodiment, the filler wires 11 of each filled section 12 is evenly distributed around the central axis of strand 10, as shown in Figure 1, the cross section of strand 10 is regular hexagon, in each filled section 12, have 18 filler wireses 11 be embedded in 43 steel tendons 1, every 3 filler wireses 11 constitute a filling unit and form 6 filling unit altogether, described filling unit is embedded on six drift angles of strand 10 cross section respectively, and namely the central point head and the tail of each described filling unit are sequentially connected with and constitute a regular hexagon for point centered by strand 10 cross-section center point.
When the quantity of filled section 12 is 1, the middle part of strand 10 is located in filled section 12；When the quantity of filled section 12 is more than 1, each filled section 12 being axially evenly distributed along strand 10；In each filled section 12, the ratio of filler wires 11 radical and steel tendon 1 radical is 0.25～0.45；Filler wires 11 is the 10%～40% of steel tendon 1 length along the length sum that strand 10 is axial；The length of filler wires 11 is not more than 5m, and the length of steel tendon 1 is not more than 1000m, and the quantity of filled section 12 is not more than 80.In the present embodiment, the length of steel tendon 1 is 1000m, and the length of filler wires 11 is 5m, and the quantity of filled section 12 is 40 sections, axial along strand 10, and the distance between rear end and the front end of an adjacent rear filler wires 11 of previous filler wires 11 is 20m.
The material of filler wires 11 is identical with the material of steel tendon 1.
When the present embodiment manufactures, first make strand 10 with steel tendon 1, be then embedded in filler wires 11 in the outermost gap of steel tendon 1, the sheath 3 that the outermost layer extrusion molding at strand 10 is made up of high-density polyethylene plastics, ground tackle 2 is finally installed at the two ends of strand 10.
The present embodiment reduces cable body vibration by changing the structure of drag-line self, reduces the resonance of drag-line further.The present embodiment adds, by steel tendon 1 in strand 10 a certain section, the filler wires 11 that length is inconsistent, the rigidity making filled section 12 strengthens, destroy the overall uniformity of strand 10, after strand 10 is produced vibration by External Force Acting, the frequency of strand 10 changes in filled section 12, continuing to continue to transmit on strand 10 thus having blocked amplitude, eliminating and producing the condition that resonance is required.
Claims (6)
1. an antivibration drag-line, including steel tendon (1) and ground tackle (2), steel tendon (1) is wound in strand (10), the two ends of strand (10) are separately fixed in ground tackle (2), it is characterized in that: also include the filled section (12) and the sheath (3) that are made up of the filler wires (11) around strand (10) central axis
The quantity of filled section (12) is at least 1, the length of filler wires (11) is less than the length of steel tendon (1), filler wires (11) piecewise is embedded in steel tendon (2) outermost gap, each filled section (12) includes the filler wires (11) that at least 2 rhizospheres are distributed around strand (10) central axis, and each section of filler wires (11) is all embedded in the outermost layer of strand (10)；Sheath (3) is coated with and is wrapped in strand (10) and the lateral surface of filler wires (11).
2. antivibration drag-line as claimed in claim 1, is characterized in that: the filler wires (11) of each filled section (12) is evenly distributed around the central axis of strand (10).
3. antivibration drag-line as claimed in claim 1 or 2, is characterized in that: when the quantity of filled section (12) is 1, filled section (12) are located at the middle part of strand (10)；When the quantity of filled section (12) is more than 1, each filled section (12) being axially evenly distributed along strand (10)；In each filled section (12), the ratio of filler wires (11) radical and steel tendon (1) radical is 0.25～0.45；Filler wires (11) is the 10%～40% of steel tendon (1) length along the length sum that strand (10) is axial.
4. antivibration drag-line as claimed in claim 3, is characterized in that: the length of filler wires (11) is not more than 5m, and the length of steel tendon (1) is not more than 1000m, and the quantity of filled section (12) is not more than 80.
5. antivibration drag-line as claimed in claim 3, is characterized in that: the material of filler wires (11) is identical with the material of steel tendon (1).
6. antivibration drag-line as claimed in claim 4, is characterized in that: the material of filler wires (11) is identical with the material of steel tendon (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824429.2A CN105780651B (en) | 2014-12-26 | 2014-12-26 | Vibration-resistant inhaul cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824429.2A CN105780651B (en) | 2014-12-26 | 2014-12-26 | Vibration-resistant inhaul cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105780651A true CN105780651A (en) | 2016-07-20 |
| CN105780651B CN105780651B (en) | 2024-06-04 |
Family
ID=56389286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410824429.2A Active CN105780651B (en) | 2014-12-26 | 2014-12-26 | Vibration-resistant inhaul cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105780651B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005076388A (en) * | 2003-09-03 | 2005-03-24 | Tokyo Seiko Co Ltd | Terminal fixing method and terminal fixing body of high strength fiber composite material cable |
| WO2005050054A1 (en) * | 2003-11-19 | 2005-06-02 | Motioneering Inc. | Stay cable damper |
| CN2799662Y (en) * | 2005-06-01 | 2006-07-26 | 上海市政工程设计研究院 | Shock damper for diagonal cable |
| US20080250576A1 (en) * | 2007-04-14 | 2008-10-16 | Werner Brand | Tension member for structures and method for manufacturing the same |
| US20100314811A1 (en) * | 2007-11-12 | 2010-12-16 | Soletanche Freyssinet | Method For Improving The Stability Against Vibrations Of A Stay Cable |
| CN102345272A (en) * | 2011-07-15 | 2012-02-08 | 上海大学 | Cable-stayed bridge stay rope capable of resisting aerodynamic instability |
| CN204510002U (en) * | 2014-12-26 | 2015-07-29 | 上海浦江缆索股份有限公司 | Antivibration drag-line |
-
2014
- 2014-12-26 CN CN201410824429.2A patent/CN105780651B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005076388A (en) * | 2003-09-03 | 2005-03-24 | Tokyo Seiko Co Ltd | Terminal fixing method and terminal fixing body of high strength fiber composite material cable |
| WO2005050054A1 (en) * | 2003-11-19 | 2005-06-02 | Motioneering Inc. | Stay cable damper |
| CN2799662Y (en) * | 2005-06-01 | 2006-07-26 | 上海市政工程设计研究院 | Shock damper for diagonal cable |
| US20080250576A1 (en) * | 2007-04-14 | 2008-10-16 | Werner Brand | Tension member for structures and method for manufacturing the same |
| US20100314811A1 (en) * | 2007-11-12 | 2010-12-16 | Soletanche Freyssinet | Method For Improving The Stability Against Vibrations Of A Stay Cable |
| CN102345272A (en) * | 2011-07-15 | 2012-02-08 | 上海大学 | Cable-stayed bridge stay rope capable of resisting aerodynamic instability |
| CN204510002U (en) * | 2014-12-26 | 2015-07-29 | 上海浦江缆索股份有限公司 | Antivibration drag-line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105780651B (en) | 2024-06-04 |
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