CN201031357Y - Stayd-cable bridge backstay cable uniaxial two-dimension shock-absorbing device - Google Patents
Stayd-cable bridge backstay cable uniaxial two-dimension shock-absorbing device Download PDFInfo
- Publication number
- CN201031357Y CN201031357Y CNU2007201156648U CN200720115664U CN201031357Y CN 201031357 Y CN201031357 Y CN 201031357Y CN U2007201156648 U CNU2007201156648 U CN U2007201156648U CN 200720115664 U CN200720115664 U CN 200720115664U CN 201031357 Y CN201031357 Y CN 201031357Y
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- Prior art keywords
- cable
- damper
- vibration absorber
- rigid support
- stayed bridge
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Abstract
The utility model is related to a uniaxial two-dimension vibration absorber of an inhaul cable of a cable stayed bridge, including a damper and a bottom rigid support. The end plane of the bottom rigid support is provided with a connection lug articulated with the tail lug of the damper. The head lug of the damper is articulated with the lathe dog with the lug and the lathe dog is fixed with the cable stayed cable. The utility model analyzes various motion forces. Based on the design, one bottom rigid support is connected with one damper directly. The utility model is a simple practical and effect vibration absorber.
Description
(1) technical field
The utility model relates to a kind of vibration absorber, specifically, is a kind of single shaft two dimension vibration absorber that is used for the cable-stayed bridge cable vibration damping.
(2) background technology
The various wind-induced vibrations of cable-stayed bridge cable are having a strong impact on the operate as normal and the application life of suspension cable, even cause catastrophic failure.In order to prolong the application life of cable stayed bridge, various countries bridge worker has proposed various vibration reducing measure in the research of being devoted to the suspension cable vibration damping, wherein is most widely used with damper device.Damper vibration damping device operating principle: vibration absorber is fixedly connected on suspension cable, and when vibration took place suspension cable, vibration absorber hindered its vibration by the various motions of damper, consumes the kinetic energy of suspension cable, realizes inhaul cable vibration control.The structural damping with drag-line self just is increased to a certain degree, makes drag-line no longer possess starting condition for oscillation.
The drag-line damper has high-damping rubber shock absorber, sticky shearing type damper, hydraulic damper etc. at present.Rubber shock absorber because the rubber utilization rate low, damping force limited and to some extent the restriction; Then because of the characteristic of cohesive material, temperature influence is unfavorable for more greatly popularizing sticky shearing type damper; The hydraulic damper starting is morning, and technology maturation has solved above two technical problems, and effectiveness in vibration suppression is good, is a kind of good suspension cable vibration absorber.But the oscillation trajectory of suspension cable is the oval curve of a major axis in face, and hydraulic damper only can provide axial damping force, so need adopting two dampers to control drag-line face inner face, a drag-line vibrates outward, must on a root bottom part rigid support, weld out a beam structure, be used for symmetry two dampers are installed.So not only add the large economy expenditure, it is attractive in appearance to influence integral bridge, does not also meet requirement simple and practical on the engineering, bigger to its application influence.
(3) utility model content
The purpose of this utility model is to provide a kind of simple in structure, easy for installation, practical and attractive, two-dimentional vibration absorber of cable-stayed bridge cable single shaft that hydraulic damper is controlled the inside and outside both direction of drag-line face.
The purpose of this utility model realizes by following technical proposal:
It comprises damper, and it also includes a bottom rigid support, and it is hinged that bottom rigid support end face has connection journal stirrup, this journal stirrup and damper afterbody journal stirrup, and the clip of damper head journal stirrup and band journal stirrup is hinged, and clip and suspension cable are fixed.
The utility model can also comprise some architectural features like this:
1, described bottom rigid support and bridge floor is fixed and with the drag-line of need vibration damping in vertical direction.
2, described bottom rigid support is round steel pipe or square steel pipe.
3, the bottom of described bottom rigid support has a steel plate.
4, described clip is a rigidity gripping mechanism.
Cable-stayed bridge cable single shaft two dimension vibration absorber of the present utility model, in the bottom of vibration absorber one bottom rigid support is arranged, this support end has been worn the connection journal stirrup, and its journal stirrup is connected with damper afterbody journal stirrup, damper head journal stirrup links to each other with band journal stirrup clip, and clip and suspension cable chucking are fixing.Bottom rigid support and bridge floor are fixed, and become vertical direction with the drag-line of need vibration damping.The bottom rigid support can be round steel pipe or square steel pipe.Support journal stirrup and damper afterbody journal stirrup and be connected to form hinge-like with pin or oscillating bearing, pin or oscillating bearing are as rotating shaft, and damper can freely rotate in the plane perpendicular to pin.Clip journal stirrup and damper head journal stirrup are connected to form hinged with pin, pin is as rotating shaft, and clip can freely rotate in the plane of vertical and pin.Clip is a rigidity gripping mechanism, is used for tightening fixedly suspension cable.Compared with prior art, the utility model has carried out various motion force analysis to constructional device, as design basis, adopt a root bottom part rigid support directly to be connected with a damper, be a kind of simple in structure, easy, economical and practical effective vibration absorber of constructing.According to this kind installation project organization, only use a hydraulic damper just can solve the elliptic vibration problem of drag-line satisfactorily.The utility model simple and beautiful structure, self-regulation ability is strong when practical application, can make accurate response according to the motion state of drag-line, solve the problem that traditional hydraulic damper is subjected to the just stuck piston pole of lateral force, be a kind of effective and feasible vibration absorber.
(4) description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a user mode schematic diagram of the present utility model.
(4) specific embodiment
For a more detailed description to the utility model for example below in conjunction with accompanying drawing:
In conjunction with the accompanying drawings, cable-stayed bridge cable single shaft two dimension vibration absorber just is to use a fluid pressure type damper, and the elliptic vibration of suspension cable is carried out vibration damping control.
This vibration absorber bottom has a rigid support 2 to fix with bridge floor, as the base rack that damper is installed, can be round steel pipe or square steel pipe.In order to guarantee to support the constant intensity with bridge floor, down dig out 2 to 3 bridge reinforcements at the installed position of bridge floor, burn-on auxiliary reinforcement and steel plate 1, guarantee weld strength, make steel plate 1 surface concordant with bridge floor, the shock absorber bottom support is welded with it again, the direction that guarantees bottom support is the drag-line perpendicular to the need vibration damping, length can make damper 6 install smoothly through calculating.Weldering one connects journal stirrup 3 on the end face of support 2, is connected with the afterbody journal stirrup 4 usefulness pins 5 of damper, has sold interconnect function, can allow damper 6 freely to rotate in the plane perpendicular to pin as rotating shaft again simultaneously.The original installation direction of the damper that connects with journal stirrup also is perpendicular to the drag-line that needs vibration damping.Extend upward, damper head journal stirrup 7 is same as damper afterbody journal stirrup 4 and the connected mode that supports journal stirrup 3 with the connected mode of clip journal stirrup 8.Clip journal stirrup 8 will guarantee weld strength for being welded in a junction spare on the rigidity clip 10 perpendicular to the appearance disc of clip during welding, and clip 10 is fixing with suspension cable 12 usefulness CARBURIZING FURNACE FOR STAINLESS FASTENER 11.When suspension cable was static, the whole vertical support of a whole set of vibration absorber was in drag-line like this; When Inclined Cable Vibration, bottom rigid support 2 fixed statics, clip 10 drives damper 6 with the motion of drag-line 12 one, makes damper produce the power consumption motion under various force status, plays the vibration isolation effect to suspension cable.
Claims (9)
1. cable-stayed bridge cable single shaft two dimension vibration absorber, it comprises damper, it is characterized in that: further comprising a bottom rigid support is arranged, it is hinged that bottom rigid support end face has connection journal stirrup, this journal stirrup and damper afterbody journal stirrup, damper head journal stirrup is hinged with the clip of band journal stirrup, and clip and suspension cable are fixed.
2. cable-stayed bridge cable single shaft according to claim 1 two dimension vibration absorber is characterized in that: described bottom rigid support and bridge floor fix and with the drag-line of need vibration damping in vertical direction.
3. cable-stayed bridge cable single shaft two dimension vibration absorber according to claim 1 and 2, it is characterized in that: described bottom rigid support is round steel pipe or square steel pipe.
4. cable-stayed bridge cable single shaft two dimension vibration absorber according to claim 1 and 2, it is characterized in that: the bottom of described bottom rigid support has a steel plate.
5. cable-stayed bridge cable single shaft two dimension vibration absorber according to claim 3, it is characterized in that: the bottom of described bottom rigid support has a steel plate.
6. cable-stayed bridge cable single shaft two dimension vibration absorber according to claim 1 and 2, it is characterized in that: described clip is a rigidity gripping mechanism.
7. cable-stayed bridge cable single shaft two dimension vibration absorber according to claim 3, it is characterized in that: described clip is a rigidity gripping mechanism.
8. cable-stayed bridge cable single shaft two dimension vibration absorber according to claim 4, it is characterized in that: described clip is a rigidity gripping mechanism.
9. cable-stayed bridge cable single shaft two dimension vibration absorber according to claim 5, it is characterized in that: described clip is a rigidity gripping mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201156648U CN201031357Y (en) | 2007-02-27 | 2007-02-27 | Stayd-cable bridge backstay cable uniaxial two-dimension shock-absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201156648U CN201031357Y (en) | 2007-02-27 | 2007-02-27 | Stayd-cable bridge backstay cable uniaxial two-dimension shock-absorbing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201031357Y true CN201031357Y (en) | 2008-03-05 |
Family
ID=39163250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201156648U Expired - Fee Related CN201031357Y (en) | 2007-02-27 | 2007-02-27 | Stayd-cable bridge backstay cable uniaxial two-dimension shock-absorbing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201031357Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613991B (en) * | 2008-06-23 | 2011-03-09 | 同济大学 | Lever-type gain device for damper |
| CN101613988B (en) * | 2009-07-10 | 2011-05-25 | 天津大学 | Vibration reduction and limiting device for stay cable |
| CN102561184A (en) * | 2011-12-30 | 2012-07-11 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Vertical shock absorption device with external stayed cable |
| CN103184724A (en) * | 2012-12-19 | 2013-07-03 | 华南理工大学 | Adjustable damping device of external prestressing cable during bridge reinforcement |
| CN103469728A (en) * | 2013-09-25 | 2013-12-25 | 无锡市弘谷振控技术有限公司 | External stay cable type damping device |
| CN105388210A (en) * | 2015-10-21 | 2016-03-09 | 大连理工大学 | Stayed-cable damage detection device and detection method based on temporary steel inclined strut |
| CN106062280A (en) * | 2013-12-18 | 2016-10-26 | Vsl国际股份公司 | Device and method for friction damping |
-
2007
- 2007-02-27 CN CNU2007201156648U patent/CN201031357Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613991B (en) * | 2008-06-23 | 2011-03-09 | 同济大学 | Lever-type gain device for damper |
| CN101613988B (en) * | 2009-07-10 | 2011-05-25 | 天津大学 | Vibration reduction and limiting device for stay cable |
| CN102561184A (en) * | 2011-12-30 | 2012-07-11 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Vertical shock absorption device with external stayed cable |
| CN102561184B (en) * | 2011-12-30 | 2014-10-29 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Vertical shock absorption device with external stayed cable |
| CN103184724A (en) * | 2012-12-19 | 2013-07-03 | 华南理工大学 | Adjustable damping device of external prestressing cable during bridge reinforcement |
| CN103184724B (en) * | 2012-12-19 | 2015-04-22 | 华南理工大学 | Adjustable damping device of external prestressing cable during bridge reinforcement |
| CN103469728A (en) * | 2013-09-25 | 2013-12-25 | 无锡市弘谷振控技术有限公司 | External stay cable type damping device |
| CN106062280A (en) * | 2013-12-18 | 2016-10-26 | Vsl国际股份公司 | Device and method for friction damping |
| CN105388210A (en) * | 2015-10-21 | 2016-03-09 | 大连理工大学 | Stayed-cable damage detection device and detection method based on temporary steel inclined strut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080305 Termination date: 20120227 |