CN103469728B - External stayed cable damping device - Google Patents
External stayed cable damping device Download PDFInfo
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- CN103469728B CN103469728B CN201310440913.0A CN201310440913A CN103469728B CN 103469728 B CN103469728 B CN 103469728B CN 201310440913 A CN201310440913 A CN 201310440913A CN 103469728 B CN103469728 B CN 103469728B
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- antivibrator
- parrel
- ring
- down tube
- bearing support
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- 238000013016 damping Methods 0.000 title claims abstract description 32
- 239000000725 suspension Substances 0.000 claims abstract description 31
- 210000005069 ears Anatomy 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 229920001971 elastomer Polymers 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 230000001629 suppression Effects 0.000 description 6
- 239000006096 absorbing agent Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The open external stayed cable damping device of the present invention, including suspension cable, parrel, bolt connection piece, antivibrator, upper bracket, pipe collar, bearing support, down tube, box beam end face, the outer pillar of suspension cable PE is bolted part fixed cover and is connected to parrel, parrel is provided with two monaural rings near antivibrator side, parrel monaural ring is connected with antivibrator one end by bearing pin, the described antivibrator other end is connected with the ears ring of upper bracket end by bearing pin, two described antivibrator is symmetrical and upper bracket constitutes isosceles triangle, described antivibrator and suspension cable central axis；By in the bolt connection piece pivot bush unit pipe collar of pipe collar in the middle part of described upper bracket, described pipe collar is welded in bearing support top, and described down tube is fixedly connected on bearing support top by bearing pin；Described down tube bottom, weld fixing with box beam end face of bearing support bottom constitute triangular support configurations.There is simple structure, easy for installation, the angled suspension cable of adaptation.
Description
Technical field
The invention belongs to bridge vibration absorber technical field, be specifically related to a kind of to suppress and reduce cable-stayed bridge and draw
The external stayed cable damping device of Suo Zhendong.
Background technology
Along with the development of modern bridge construction technology, bridge span structure is sent out towards tall and big, soft, low resistance trend
Exhibition, development overlength, Long span Flexible bridge are international a kind of trend.That built in recent years both at home and abroad is oblique
Draw spanning subsist cumulative greatly, drag-line the most day by day increases.Suspension cable is one of main supporting member of cable-stayed bridge,
Owing to the reasons such as suspension cable quality is little, flexibility is big, internal damping is low easily produce vibration under extraneous environmental excitation.
Lasting inhaul cable vibration can cause drag-line and the fatigue of anchor head and the destruction of overcoat, shortens the use of drag-line
In the life-span, add the maintenance and repair expense of bridge, also can make pedestrian that the safety of cable-stayed bridge is thrown doubt upon.
Therefore, suppression Inclined Cable Vibration is requisite, and existing suspension cable damped products has a lot.Such as,
Publication No. CN101709567A, title " a kind of mass damping device of rigid connection space lever of stay cable "；
Publication No. CN102561184A, entitled " a kind of vertical shock absorption device with external stayed cable "；Publication number
For CN101476283A, " with the stay-cable sticky shearing type damper of steering mechanism ", such invention is all
By lever, Inclined Cable Vibration power is delivered on antivibrator, by antivibrator, vibrational energy is dissipated, from
And play damping effect.Weak point: 1. this type of damping device structure is complicated, the junction point between parts
Arranging more, the movement clearance of accumulation is relatively big, extends the response time of Inclined Cable Vibration, to suppression oblique pull
Rope low amplitude vibrations has large effect, and due to parts too complex, brings the workload of later maintenance
Strengthen the most therewith.2. such device antivibrator is indirectly connected with suspension cable by lever, and suspension cable produces
Vibration be the outer three-dimensional vibration of face inner face, when drag-line produces out-of-plane vibration, drive lever rotation, though resistance
Buddhist nun's device rotates, and the energy that antivibrator rotates dissipation is not it is obvious that therefore effectiveness in vibration suppression is not fine.
3. longer when suspension cable, for improving the effectiveness in vibration suppression of drag-line, the setting height(from bottom) that damping device requires is lifted the most therewith
Height, as used this type of vibration damping, certainly will make lever lengthen, and damping effect is the most inconspicuous.It addition, Publication No.
CN201031357Y, " stayd-cable bridge backstay cable uniaxial two-dimension shock-absorbing device ", this is novel includes a bottom rigid
Supporting, it is hinged with antivibrator afterbody journal stirrup that bottom rigid support end has worn connection journal stirrup, this journal stirrup, damps
Device head journal stirrup is hinged with the clip of band journal stirrup, and clip is fixed with suspension cable；Bottom rigid supports solid with bridge floor
Fixed and with need the drag-line of vibration damping in vertical direction.Weak point: 1. owing to only installing single shaft vibration absorber, i.e.
One antivibrator is only installed, to other direction outside drag-line face, the particularly vibration damping of vertical damping device direction vibration
Effect be not it is obvious that because be delivered to damper shaft to displacement substantially than drag-line itself vibrate displacement
Measuring much smaller, reduce the vibration of drag-line, energy consumption effect of damper reduces therewith.2. bottom rigid support with
Suspension cable is vertical, when, vibration absorber setting height(from bottom) shorter for suspension cable drag-line longitudinal pitch short, adjacent is big
More use.When suspension cable is longer, it is desirable to the setting height(from bottom) of vibration absorber is of a relatively high, adds Suo Weimi
During rope distribution, if installed by this structure, then rigid support bottom will be affected by adjacent drag-line, and nothing
Method is correctly installed.
Summary of the invention
It is contemplated that overcome the defect of prior art, it is provided that a kind of external stayed cable damping device,
There is simple structure, easy for installation, the angled suspension cable of adaptation, to direction any inside and outside suspension cable face
Vibration can play effective inhibitory action.
In order to solve above-mentioned technical problem, the invention provides following technical scheme:
External stayed cable damping device, including suspension cable, parrel, bolt connection piece, antivibrator,
Upper bracket, pipe collar, bearing support, down tube, box beam end face, pass through bolt at the outer pillar of described suspension cable PE
Connector fixed cover is connected to parrel, and described parrel is provided with two with parrel centrosymmetry near antivibrator side
The monaural ring of distribution, described parrel is that two semicircular ring having bolt connecting hole combine, described parrel
Being provided with rustless steel self-lubricating knuckle bearing in monaural ring, described parrel monaural ring is by being provided with the pin of jump ring
Axle is connected with antivibrator one end, and the described antivibrator other end is by being provided with bearing pin and the upper bracket end of jump ring
Ears ring connect, two described antivibrators are symmetrical constitutes isosceles triangle, described damping with upper bracket
Device and suspension cable central axis；By the bolt connection piece pivot bush unit pipe collar of pipe collar in the middle part of described upper bracket
In, described pipe collar is welded in bearing support top, and described down tube connects by the bearing pin being provided with jump ring is fixing
In bearing support top；Described down tube bottom, bearing support bottom weld composition triangle fixing with box beam end face prop up
Support structure, described antivibrator one end is ears ring, and the antivibrator other end is monaural ring structure, antivibrator monaural
Being inlaid with rustless steel self-lubricating knuckle bearing in ring, described bearing support is circular or rectangular steel tube, described supporting
Frame side is provided with three earrings, and described down tube is circular or rectangular steel tube, is tiltedly in the charge of upper end and is welded with and tiltedly holds
Pipe ears ring, described down tube ears ring is provided with pin shaft hole.
Described parrel inwall is pasted with rubber blanket.
Described antivibrator is passive, active or half active antivibrator.
The present invention is directly connected vertical to antivibrator and drag-line, and without movement clearance, distinctive " people " font is tied
Configuration formula adds bearing support and down tube triangular configuration, and the energy efficiency of antivibrator can be made to reach the highest, effectively
The vibration of all directions inside and outside suppression drag-line face, effect is obvious.And, this damping device is applicable to
The drag-line of coplanar interior angle degree is not installed.
Compared with prior art, the present invention has a following beneficial effect:
1, unitary construction is simple, without the movement clearance produced because crossing multiconnection point, bearing support and down tube
Triangular configuration rigidity is high, can effectively transmit inhaul cable vibration power, make energy efficiency reach the highest, and inhibition of vibration is bright
Aobvious.Setting height(from bottom) is of a relatively high, convenient to install and maintain, less on Bridge Landscape impact.
2, antivibrator distinctive " people " character form structure form, can transmit the vibration force of suspension cable all directions,
Vibration to all directions can play good inhibition of vibration.
3, antivibrator is full-closed structure, adds between upper bracket and bearing support rotatable, is applicable to drag-line
Comprehensive installation.
4, antivibrator two ends are all that ball pivot connects, and adapt to drag-line and bridge floor produces because of variation of ambient temperature
Angular deviation, prevents stuck.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of external stayed cable damping device of the present invention；
Fig. 2 is the generalized section of external stayed cable damping device of the present invention；
Fig. 3 is the profile of the parrel junction of external stayed cable damping device of the present invention；
Fig. 4 is the profile of the antivibrator junction of external stayed cable damping device of the present invention；
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that described herein
Preferred embodiment is merely to illustrate and explains the present invention, is not intended to limit the present invention.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, external stayed cable damping device, including suspension cable
1, parrel 2, bolt connection piece 3, bearing pin 4, antivibrator 5, upper bracket 6, pipe collar 7, bearing support 8,
Down tube 9, box beam end face 12, be bolted part 3 fixed cover at the outer pillar of suspension cable 1PE and be connected to rope
Hoop 2, described parrel 2 inwall seccotine is pasted with ethylene-propylene-diene monomer rubber cushion.Described parrel 2 is near damping
Device side is provided with two monaural rings 21 being distributed with parrel centrosymmetry, and described parrel 2 is two and has spiral shell
The semicircular ring composition of bolt connecting hole, is provided with rustless steel self-lubricating knuckle bearing 10 in described parrel monaural ring.
Described antivibrator 5 one end is ears ring, and antivibrator 5 other end is monaural ring structure, in antivibrator monaural ring
The rustless steel self-lubricating knuckle bearing 10 of standard component is installed.Described parrel monaural ring 21 by bearing pin 4 with
Antivibrator 5 one end connects, and bearing pin 4 jump ring 41 is fixed；This structure ensures that parrel 2 is with antivibrator 5 not only
Can left-right rotation, moreover it is possible to have ± the swing of 3 ° up and down, prevent external stayed cable damping device from installing
It is not stuck with in operation.Described antivibrator 5 other end is by the ears ring of bearing pin 4 with upper bracket 6 end
Connecting, bearing pin 4 jump ring 41 is fixed, this structure ensure antivibrator 5 and upper bracket 6 can not only left-right rotation,
Can also have ± the swing of 3 ° up and down, prevent external stayed cable damping device install and in operation not by
Stuck.Described upper bracket 6 is the round steel pipe that both ends of the surface dense steel plate soldering and sealing connects, and outer wall of steel pipe is welded with two
Individual ears ring.Between two antivibrators 5 symmetrical in " people " font, constitute isosceles three with upper bracket 6
Dihedral.Described antivibrator 5 is passive, actively or half active antivibrator, can use as viscous damper,
Magneto-rheological fluid damper, emr fluid antivibrator etc..Described antivibrator 5 hangs down with suspension cable 1 centrage
Directly.It is connected in pipe collar 7 by bolt connection piece 3 movable sleeve of pipe collar in the middle part of described upper bracket 6, installed
Cheng Zhong, upper bracket 6 can rotate in pipe collar 7, adapts to the angular deviation of drag-line, and convenient installation positions.
Described pipe collar 7 is welded in bearing support 8 top, and described pipe collar 7 is two semicircular ring having bolt connecting hole
Composition forms.Described down tube 9 is circular or rectangular steel tube, and down tube upper end is welded with down tube ears ring,
Described down tube ears ring is provided with pin shaft hole.Described bearing support 8 is circular or rectangular steel tube, described supporting
Frame 8 side is provided with three earrings.Described down tube 9 is fixedly connected on bearing support 8 top by bearing pin 4,
And fix with jump ring 41；Described down tube 9 bottom, bearing support 8 bottom are fixed with box beam end face 12 and are welded,
Constitute stable triangular support configurations, improve the rigidity of integrated support, increase the damping of antivibrator 5
Energy.
When suspension cable 1 is vibrated by extraneous factor, the motion of suspension cable 1 is directly passed to damping by parrel 2
Device 5, and bearing support 8 rigidly fixes, antivibrator 5 is subjected to displacement, and vibrational energy has been lost, thus to tiltedly
Inhibitory action is played in the vibration of drag-line 1.Owing to antivibrator 5 is symmetrically installed for isosceles triangle, can effectively pass
Pass the vibration force in any direction of suspension cable 1, and 1 inward-outward direction of suspension cable is vibrated good the pressing down of generation
Make and use.
The present invention is directly connected vertical to antivibrator 5 and suspension cable, without movement clearance, and distinctive " people " word
Shape version adds bearing support and down tube triangular configuration, and the energy efficiency of antivibrator can be made to reach the highest,
The effectively vibration of all directions inside and outside suppression drag-line face, effect is obvious.And, this damping device can be fitted
Drag-line for not coplanar interior angle degree is installed.
The foregoing is only explanation embodiments of the present invention, be not limited to the present invention, for this area
Technical staff for, all within the spirit and principles in the present invention, any amendment of being made, equivalent,
Improve, should be included within the scope of the present invention.
Claims (3)
1. external stayed cable damping device, including suspension cable, parrel, bolt connection piece, antivibrator, upper bracket, pipe collar, bearing support, down tube, box beam end face, it is characterized in that: be bolted part fixed cover at the outer pillar of described suspension cable PE and be connected to parrel, described parrel is provided with two monaural rings being distributed with parrel centrosymmetry near antivibrator side, described parrel is that two semicircular ring having bolt connecting hole combine, in described parrel monaural ring, rustless steel self-lubricating knuckle bearing is installed, described parrel monaural ring is connected with antivibrator one end by being provided with the bearing pin of jump ring, the ears ring of described antivibrator other end bearing pin with upper bracket end by being provided with jump ring is connected, two described antivibrator is symmetrical and upper bracket constitutes isosceles triangle, described antivibrator and suspension cable central axis；By in the bolt connection piece pivot bush unit pipe collar of pipe collar in the middle part of described upper bracket, described pipe collar is welded in bearing support top, and described down tube is fixedly connected on bearing support top by being provided with the bearing pin of jump ring；Described down tube bottom, weld fixing with box beam end face of bearing support bottom constitute triangular support configurations,Described antivibrator one end is ears ring, the antivibrator other end is monaural ring structure, in antivibrator monaural ring, rustless steel self-lubricating knuckle bearing is installed, described bearing support is circular or rectangular steel tube, described bearing support side is provided with three earrings, described down tube is circular or rectangular steel tube, and down tube upper end is welded with down tube ears ring, and described down tube ears ring is provided with pin shaft hole.
External stayed cable damping device the most according to claim 1, it is characterised in that, described parrel inwall is pasted with rubber blanket.
External stayed cable damping device the most according to claim 1, it is characterised in that, described antivibrator is passive, active or half active antivibrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310440913.0A CN103469728B (en) | 2013-09-25 | 2013-09-25 | External stayed cable damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310440913.0A CN103469728B (en) | 2013-09-25 | 2013-09-25 | External stayed cable damping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103469728A CN103469728A (en) | 2013-12-25 |
| CN103469728B true CN103469728B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310440913.0A Active CN103469728B (en) | 2013-09-25 | 2013-09-25 | External stayed cable damping device |
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Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107014477B (en) * | 2017-04-01 | 2019-03-29 | 汪哲荪 | Circular ring type suspension cable two-dimension vibration sensor and its application method |
| CN107151975A (en) * | 2017-06-08 | 2017-09-12 | 商丘工学院 | A kind of vibration absorber in the cable of suspension system for civil engineering structure |
| CN107165049A (en) * | 2017-06-14 | 2017-09-15 | 南昌工程学院 | A kind of vibration absorber in the cable of suspension system for civil engineering structure |
| CN108660905B (en) * | 2018-04-09 | 2020-09-01 | 中铁大桥科学研究院有限公司 | Damping vibration damper for medium and long suspension cables of suspension bridge |
| CN108660904B (en) * | 2018-04-09 | 2020-05-05 | 中铁大桥科学研究院有限公司 | Long sling damping vibration damper of suspension bridge |
| CN108662072A (en) * | 2018-07-02 | 2018-10-16 | 浙江大学 | A kind of Parameter adjustable inertia mass damper for model suspension cable damping test |
| CN108660926B (en) * | 2018-07-26 | 2023-07-14 | 柳州欧维姆机械股份有限公司 | Space inhaul cable anti-collision vibration-isolation type universal connecting device and manufacturing and mounting method thereof |
| CN109253076A (en) * | 2018-09-08 | 2019-01-22 | 广东万家乐燃气具有限公司 | A kind of central fuel gas water heating device DC water pump mounting structure |
| CN109505228B (en) * | 2018-11-22 | 2020-11-24 | 山东理工大学 | Damping vibration damper for overhanging beam |
| CN110438900B (en) * | 2019-07-03 | 2024-03-12 | 中铁十二局集团有限公司 | Construction method of polyurethane filled type stay cable external damper |
| CN110374010B (en) * | 2019-07-22 | 2021-09-03 | 中铁大桥局集团有限公司 | Construction device for temporary vibration reduction of stay cable and use method thereof |
| CN110685212B (en) * | 2019-09-23 | 2020-07-28 | 同济大学 | External granule damping device of suspension cable |
| CN113323982B (en) * | 2020-05-10 | 2023-04-18 | 郑州东辰科技有限公司 | Anti-resonance damping method for structural body |
| CN112227180B (en) * | 2020-09-30 | 2022-07-01 | 中铁大桥局集团有限公司 | Stay cable combined vibration reduction device and method |
| CN112377556B (en) * | 2020-10-22 | 2022-04-12 | 绍兴文理学院 | Combined vibration damper for suspension tunnel pipe body and anchor cable |
| CN112377560B (en) * | 2020-10-22 | 2022-04-12 | 绍兴文理学院 | Suspension tunnel body disc vibration suppression ware |
| CN112832129B (en) * | 2021-01-08 | 2022-09-13 | 中铁桥研科技有限公司 | Built-in damping device of stay cable |
| CN116180583B (en) * | 2023-04-24 | 2023-07-14 | 湖南省潇振工程科技有限公司 | Ball screw type eddy current damping stay cable vibration damper |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2862073B1 (en) * | 2003-11-12 | 2007-11-23 | Freyssinet Int Stup | DEVICE FOR DAMPING THE VIBRATION OF A HAUBANS TAB OF A CONSTRUCTION WORK AND METHOD OF DAMPING THE SAME |
| CN201031357Y (en) * | 2007-02-27 | 2008-03-05 | 宁波杉工结构监测与控制工程中心有限公司 | Stayd-cable bridge backstay cable uniaxial two-dimension shock-absorbing device |
| CN101613991B (en) * | 2008-06-23 | 2011-03-09 | 同济大学 | Lever-type gain device for damper |
| CN201686933U (en) * | 2010-06-10 | 2010-12-29 | 重庆仪表材料研究所 | Wind control stay cable magnetorheological damping device |
| CN201981476U (en) * | 2011-04-08 | 2011-09-21 | 湖北省交通规划设计院 | Convenient-to-install stay cable lever mass vibration absorber |
| CN203487458U (en) * | 2013-09-25 | 2014-03-19 | 无锡市弘谷振控技术有限公司 | Damping vibration attenuation device with external stay cable |
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Effective date of registration: 20231114 Address after: 214101 No. 3, zone a, science and Technology Industrial Park, Xishan Economic Development Zone, Wuxi City, Jiangsu Province Patentee after: Jiangsu Honggu Damping Technology Co.,Ltd. Address before: 214000 Building 3, Zone A, Science and Technology Industrial Park, Xishan Economic Development Zone, Wuxi City, Jiangsu Province Patentee before: WUXI HONGGU ZHENKONG TECHNOLOGY Co.,Ltd. |