CN203546592U - Damper with external bridge cable - Google Patents
Damper with external bridge cable Download PDFInfo
- Publication number
- CN203546592U CN203546592U CN201320603093.8U CN201320603093U CN203546592U CN 203546592 U CN203546592 U CN 203546592U CN 201320603093 U CN201320603093 U CN 201320603093U CN 203546592 U CN203546592 U CN 203546592U
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- damping
- damper
- lower box
- bridge cable
- damping cavity
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Abstract
The utility model belongs to the technical field of shock absorption of bridge engineering structures and relates to a stayed cable shock absorption device, in particular to a damper with an external bridge cable. The damper comprises an upper box body and a lower box body, and is characterized in that damping insertion plates are arranged in the upper box body and are arranged in a damping cavity of the lower box body; furthermore, a middle baffle is arranged in the damping cavity; a gap distance nail is arranged on each of the upper part and the lower part of each damping insertion plate respectively; two ends of each gap distance nail respectively press against the middle baffle and the inner wall of the damping cavity; the damping cavity is filled with viscous damping liquid. The damper disclosed by the utility model can effectively suppress various vibrations of the cable and ensure that the phenomenon that a shock absorption effect is alleviated as a gap between the damping insertion plates is changed in a working process can be avoided.
Description
Technical field
The utility model belongs to bridge engineering structural damping technical field, relates to a kind of suspension cable damping device, specifically a kind of bridge cable external damper.
Background technology
Suspension cable is as the main supporting member of drag-line bridge, and the vibration of cable stayed bridge not only can cause the fatigue failure of drag-line and ground tackle, but also can accelerate the corrosion rate of drag-line, brings psychological uneasiness to people simultaneously.It is large that the feature of drag-line is slenderness ratio, and quality is little, and flexibility is large, the feature that damping is little, and its logarithmic decrement is generally below 0.01.Drag-line very easily produces various vibrations under extraneous excitation, causes drag-line to produce fatigue failure phenomenon, even affects crossstructure when serious.The variety of problems that the vibration of suspension cable brings generally can expend the cable replacement engineering that huge manpower and materials are carried out drag-line bridge.Therefore the vibration damping of suspension cable just seems very important.
Current drag-line external damper, due to the weight of self, can make the gap between damping plate change in time, causes effectiveness in vibration suppression to reduce.Simultaneously some damper will be an angle of 90 degrees with drag-line owing to installing, and the leakage that very easily produces damping fluid when rope and bridge floor inclination angle nearly 45 are spent, causes damper inefficacy.
Summary of the invention
The utility model, for the problems referred to above, provides a kind of bridge cable external damper, adopts this damper can effectively suppress the various vibrations of drag-line, guarantees that the gap of damping plate can not change in the course of the work and reduce damping effect simultaneously.
According to the technical solution of the utility model: a kind of bridge cable external damper, comprise upper box, lower box, it is characterized in that: described upper box is built-in with damping plate, described damping plate is placed in the damping cavity of lower box, one central dividing plate is set simultaneously in damping cavity, one gap spacing nail is set respectively in the upper and lower part of damping plate, and described gap spacing nail two ends are resisted against respectively on central dividing plate and on damping cavity inwall, and described damping cavity is filled with viscous damping liquid.
As further improvement of the utility model, described upper box outside is provided with water proof and dust proof cover, and described water proof and dust proof cover is coated on lower box outside, and water proof and dust proof cover bottom and lower box contact position are provided with the gradient of inside receipts.
As further improvement of the utility model, the height of described central dividing plate is less than the height of damping cavity, and viscous damping liquid upper end liquid level is lower than the height of central dividing plate.
As further improvement of the utility model, place, four jiaos, described upper box top offers respectively connecting hole.
As further improvement of the utility model, four jiaos of places of described lower box base plate offer respectively connecting hole.
Technique effect of the present utility model is: adopt novel viscous damping fluid, viscosity is large, and viscosity with temperature impact is little, can be fewer but larger damping force can be provided than general damping liquid consumption, there is not climbing effect simultaneously, and can effectively prevent the leakage of damping fluid; Between each damping plate, be designed with spacing device, guarantee each plate clearance constant, effectiveness in vibration suppression can not decayed in time; This damper vibration damping effect is remarkable, can effectively suppress the various vibrations of drag-line, and all directions vibration, comprises in plane flat out-of-plane vibration; This damper structure is simple and reliable, easy for installation, safeguards simply long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is perspective view of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is further described.
In Fig. 1, Fig. 2, comprise upper box 1, water proof and dust proof cover 2, lower box 3, damping plate 4, gap spacing nail 5, viscous damping liquid 6, central dividing plate 7 etc.
As shown in Figure 1 and Figure 2, the utility model is a kind of bridge cable external damper, comprise upper box 1, lower box 3, described upper box 1 is built-in with damping plate 4, described damping plate 4 is placed in the damping cavity of lower box 3, one central dividing plate 7 is set simultaneously in damping cavity, one gap spacing nail 5 is set respectively in the upper and lower part of damping plate 4, guarantee in motion process, clearance constant is constant, described gap spacing is followed closely 5 two ends and is resisted against respectively on central dividing plate 7 and on damping cavity inwall, and described damping cavity is filled with viscous damping liquid 6.
Described upper box 1 outside is provided with water proof and dust proof cover 2, and described water proof and dust proof cover 2 is coated on lower box 3 outsides, and water proof and dust proof cover 2 bottoms and lower box 3 contact positions are provided with the gradient of inside receipts, can effectively prevent that foreign material rainwater etc. from entering in damping cavity.
The height of described central dividing plate 7 is less than the height of damping cavity, and viscous damping liquid 6 upper end liquid levels are lower than the height of central dividing plate 7.
Place, four jiaos, described upper box 1 top offers respectively connecting hole, for connecting drag-line.
Four jiaos of places of described lower box 3 base plate offer respectively connecting hole, for connecting bracing frame and being fixed on bridge floor.
Operating principle of the present utility model is as follows: this damper upper box 1 is 90 degree by cord clip and drag-line to be fixed, and lower box 3 is fixed by bearing support and bridge floor, and upper box 1 and lower box 3 up and down four direction are done shearing motion with the vibration of drag-line.During shearing motion, damping plate 4 relative shear campaign in viscous damping liquid 6 produces damping force, by kinetic energy energy transform into heat energy.Because this product adopts novel viscous damping fluid 6, viscosity is very high, under very little vibration, just can produce very large damping force, and effectiveness in vibration suppression is remarkable.
Adopt novel viscous damping fluid, viscosity is large, and viscosity with temperature impact is little, can be fewer but larger damping force can be provided than general damping liquid consumption, there is not climbing effect simultaneously, and can effectively prevent the leakage of damping fluid; Between each damping plate, be designed with spacing device, guarantee each plate clearance constant, effectiveness in vibration suppression can not decayed in time; This damper vibration damping effect is remarkable, can effectively suppress the various vibrations of drag-line, and all directions vibration, comprises in plane flat out-of-plane vibration; This damper structure is simple and reliable, easy for installation, safeguards simply long service life.
Claims (5)
1. a bridge cable external damper, comprise upper box (1), lower box (3), it is characterized in that: described upper box (1) is built-in with damping plate (4), described damping plate (4) is placed in the damping cavity of lower box (3), one central dividing plate (7) is set simultaneously in damping cavity, one gap spacing nail (5) is set respectively in the upper and lower part of damping plate (4), spacing nail (5) two ends, described gap are resisted against respectively central dividing plate (7) above and on damping cavity inwall, described damping cavity is filled with viscous damping liquid (6).
2. according to bridge cable external damper claimed in claim 1, it is characterized in that: described upper box (1) outside is provided with water proof and dust proof cover (2), described water proof and dust proof cover (2) is coated on lower box (3) outside, and water proof and dust proof cover (2) bottom and lower box (3) contact position are provided with the gradient of inside receipts.
3. according to bridge cable external damper claimed in claim 1, it is characterized in that: the height of described central dividing plate (7) is less than the height of damping cavity, viscous damping liquid (6) upper end liquid level is lower than the height of central dividing plate (7).
4. according to bridge cable external damper claimed in claim 1, it is characterized in that: place, four jiaos, described upper box (1) top offers respectively connecting hole.
5. according to bridge cable external damper claimed in claim 1, it is characterized in that: four jiaos of places of described lower box (3) base plate offer respectively connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320603093.8U CN203546592U (en) | 2013-09-27 | 2013-09-27 | Damper with external bridge cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320603093.8U CN203546592U (en) | 2013-09-27 | 2013-09-27 | Damper with external bridge cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203546592U true CN203546592U (en) | 2014-04-16 |
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ID=50464729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320603093.8U Expired - Lifetime CN203546592U (en) | 2013-09-27 | 2013-09-27 | Damper with external bridge cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203546592U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469731A (en) * | 2013-09-27 | 2013-12-25 | 无锡圣丰建筑新材料有限公司 | External damper for bridge cable |
| CN105421611A (en) * | 2015-12-01 | 2016-03-23 | 清华大学 | Viscosity damping box and energy dissipation device with same |
| CN105625164A (en) * | 2016-02-23 | 2016-06-01 | 成都科创佳思科技有限公司 | Bridge damping structure |
| CN105951582A (en) * | 2016-06-01 | 2016-09-21 | 成都格瑞思文化传播有限公司 | Bridge shock absorbing and elastic-plastic damping structure |
-
2013
- 2013-09-27 CN CN201320603093.8U patent/CN203546592U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469731A (en) * | 2013-09-27 | 2013-12-25 | 无锡圣丰建筑新材料有限公司 | External damper for bridge cable |
| CN105421611A (en) * | 2015-12-01 | 2016-03-23 | 清华大学 | Viscosity damping box and energy dissipation device with same |
| CN105421611B (en) * | 2015-12-01 | 2018-04-20 | 清华大学 | Viscous damping case and the energy-consuming shock absorber with the viscous damping case |
| CN105625164A (en) * | 2016-02-23 | 2016-06-01 | 成都科创佳思科技有限公司 | Bridge damping structure |
| CN105951582A (en) * | 2016-06-01 | 2016-09-21 | 成都格瑞思文化传播有限公司 | Bridge shock absorbing and elastic-plastic damping structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: External damper for bridge cable Effective date of registration: 20161104 Granted publication date: 20140416 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi Xishan branch Pledgor: WUXI FUYO TECH Co.,Ltd. Registration number: 2016990000925 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190227 Granted publication date: 20140416 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi Xishan branch Pledgor: WUXI FUYO TECH Co.,Ltd. Registration number: 2016990000925 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
|
| CX01 | Expiry of patent term |