CN202359499U - Shock-absorbing damping device for bridge cables or suspenders - Google Patents
Shock-absorbing damping device for bridge cables or suspenders Download PDFInfo
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- CN202359499U CN202359499U CN2011204743344U CN201120474334U CN202359499U CN 202359499 U CN202359499 U CN 202359499U CN 2011204743344 U CN2011204743344 U CN 2011204743344U CN 201120474334 U CN201120474334 U CN 201120474334U CN 202359499 U CN202359499 U CN 202359499U
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- suspension rod
- drag
- line
- sleeve
- vibration
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Abstract
The utility model relates to a shock-absorbing damping device for bridge cables or suspenders, which comprises a sleeve and a shock absorbing ring. The sleeve is sleeved on a cable or suspender. A distance is reserved between the inner wall of the sleeve and the cable or suspender. The shock absorbing ring is made of shape memory alloy and disposed between the sleeve and the cable or suspender. The shock absorbing ring of the shock-absorbing damping device is made of the shape memory alloy and has the excellent characteristics of shape memory effect, superelasticity and the like, so that energy dissipation capacity and self-restoring capacity against large deformation of the cable or suspender shock-absorbing device can be enhanced, and the shock-absorbing device has fine durability. The shock absorbing ring is disposed between the cable or suspender and the sleeve, the shock absorbing ring and the sleeve form a damping structural system, and accordingly, vibration damping is increased for the cable or suspender, and vibration caused by various types of excitation can be resisted effectively. In addition, the shock-absorbing damping device has the advantages of simple structure, convenience in construction and maintenance, long service life, easiness in manufacturing and mounting and the like.
Description
Technical field
The utility model belongs to technical field of bridge engineering, relates in particular to a kind of vibration-reducing and damping device that is used for bridge cable or suspension rod.
Background technology
As the drag-line (or suspension rod) of cable stayed bridge, suspension bridge and long-span arch bridge main bearing member, have characteristics such as flexibility is big, internal damping is low, the intrinsic frequency distribution is wide, very easily under the excitation of wind, wind and rain and supported end displacement, vibrate.Existing research shows that causing of drag-line (or suspension rod) mechanism of shaking is very complicated, can be divided into that the whirlpool swashs that resonance, parametric vibration, buffeting, wind and rain are shaken, ice shakes and the wake flow galloping of rope arranged side by side etc. by different origin.At present, the main means that suppress drag-line (or suspension rod) vibration are Passive Control, and its major measure comprises three kinds: a kind of is through changing drag-line (or suspension rod) surface configuration to change the aerodynamic characteristic of drag-line (or suspension rod); Another kind is to set up passive damper at drag-line (or suspension rod) near-end, and also having a kind of is to set up lazy halyard.Aerodynamic Measures and vibration-reducing and damping device have obtained applying in China's engineering practice, but the lazy halyard vibration reducing measure is not promoted at home as yet.
Increase drag-line (or suspension rod) structural damping in China's engineering practice and generally adopt dual mode: a kind of is hydraulic damper; Its major defect is that its endurance quality is not good; Sealing performance is with great difficulty leakage of oil not; The maintenance expense is higher, and the hydraulic damper volume is bigger simultaneously, and being placed on the bridge floor has negative effect to the bridge view; Another kind of mode is the damped ring that adopts the high-damping rubber material to make, its have simple in structure, do not influence advantage such as bridge floor view, shortcoming is to regulate relatively difficulty of parameters optimization when installing, effectiveness in vibration suppression is not good.
Marmem is a kind of perception and new material that drives function of having concurrently, and the difference of it and traditional material is to have SME and large deformation super elastic characteristics, high damping; Corrosion-resistant; Endurance can repeat surrender and not produce characteristics such as permanent deformation, good endurance.Along with the reduction of the deep and cost of studying, the marmem damping device that research and development are used for bridge cable (or suspension rod) has very big potentiality.
The utility model content
The utility model technical problem to be solved is, provides that a kind of energy-dissipating property is preferable, the vibration-reducing and damping device that is used for bridge cable or suspension rod of good endurance.
For solving the problems of the technologies described above; The utility model provides a kind of vibration-reducing and damping device that is used for bridge cable or suspension rod; It comprises sleeve and damping ring, and said jacket casing is located on drag-line or the suspension rod, has spacing between its inside wall and said drag-line or the suspension rod; Said damping ring is processed by marmem, and it is between said sleeve and said drag-line or suspension rod.
Further, said damping ring turns to endless loop by said twisted wire after being wound in twisted wire by many shape-memory alloy wires, and parameter scenes such as this endless loop size are adjustable.
Further, said jacket casing is located at bottom one segment length of said drag-line or suspension rod, and the bottom of said sleeve is fixed in the bridge floor.
Further, said jacket casing is located at said drag-line or suspension rod top one segment length, and said vibration-reducing and damping device also comprises support, and the two ends of said support are supported respectively and are fixed on said sleeve and the bridge floor.
Further, said sleeve top is provided with the tarpaulin that the cross section is umbrella, perhaps between said sleeve top and drag-line or suspension rod, is provided with the anticorrosion flexible body of waterproof action.
Further, on the length direction of said drag-line in edge or suspension rod, be distributed with the described damping ring of one deck at least, each layer is provided with at least one described damping ring.
Further, said damping ring be distributed in said drag-line or suspension rod around.
Further, said drag-line or suspension rod are arranged with haversian canal outward, and said haversian canal is provided with cringle, and the position of corresponding said cringle also is provided with cringle on the said sleeve inside wall, and said damping ring is fixed on the cringle of cringle and said sleeve of said haversian canal.
Further, said cringle is cylindric, and the length direction of its length direction and said drag-line or suspension rod parallels.
Further, said drag-line or suspension rod are arranged with haversian canal outward, and the inside wall of said sleeve is provided with cringle, walk around the outer haversian canal of said drag-line or suspension rod after the preparatory stretch-draw of said damping ring and are fixed on the said cringle.
Compared with prior art; The damping ring of the vibration-reducing and damping device of the utility model is processed by marmem; It has good characteristics such as SME, super-elasticity; Thereby can strengthen the energy-dissipating property and the large deformation runback potential energy power of vibration damping inhaul cable (or suspension rod) device, have favorable durability simultaneously.Can regulate the size of optimizing damping ring according to field condition during construction, be easy to install.Damping ring is positioned between drag-line (or suspension rod) and the sleeve; Itself and sleeve form a damping structure system; Promoted the vibration damping of drag-line (or suspension rod), can effectively resist the vibration that various excitations cause, like vortex-induced vibration, wind and rain vibration, parametric vibration and linear internal resonance etc.Moreover, simple in structure, advantages such as the life-span is grown, maintaining convenience that above-mentioned vibration-reducing and damping device also has.In addition, above-mentioned damping ring is distributed in drag-line (or suspension rod) on every side, and during vibration, all directions can work simultaneously, can further improve the oscillation damping and energy dissipating effect of device effectively.
Description of drawings
Fig. 1 is the structural representation that the utility model is used for vibration-reducing and damping device first embodiment of bridge cable or suspension rod.
Fig. 2 is the structural representation that the utility model is used for vibration-reducing and damping device second embodiment of bridge cable or suspension rod.
Fig. 3 is the generalized section along A-A line among Fig. 1 and Fig. 2.
Fig. 4 is the structural representation that the utility model is used for vibration-reducing and damping device the 3rd embodiment of bridge cable or suspension rod.
Fig. 5 is the generalized section along B-B line among Fig. 4.
Fig. 6 makes the generalized section of marmem twisted wire that the utility model is used for the vibration-reducing and damping device damping ring of bridge cable suspension rod.
The specific embodiment
In order to make the utility model technical problem to be solved, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Please together consulting Fig. 1, Fig. 2 and Fig. 4, is three kinds of embodiments of the utility model.This vibration-reducing and damping device mainly comprises sleeve 1 and damping ring 2.Sleeve 1 is sheathed on the drag-line 3 of cable stayed bridge, has spacing between its inside wall and the drag-line 3; Damping ring 2 is processed by marmem, and it is between sleeve 1 and drag-line 3.
The damping ring 2 of above-mentioned vibration-reducing and damping device is processed by the marmem twisted wire, and it has good characteristics such as SME, super-elasticity, thereby can strengthen the energy-dissipating property and the large deformation runback potential energy power of vibration damping inhaul cable device, has favorable durability simultaneously.Damping ring 2 is between drag-line 3 and sleeve 1, and itself and sleeve 1 form a damping structure system, have promoted the vibration damping of drag-line 3, can effectively resist the vibration that various excitations cause, like vortex-induced vibration, wind and rain vibration, parametric vibration and linear internal resonance etc.Moreover that above-mentioned vibration-reducing and damping device also has is simple in structure, construction and advantage such as easy to maintenance, and it also has long service life simultaneously, is easy to advantages such as manufacturing, installation.
Particularly, among first embodiment shown in Figure 1, sleeve 1 is a steel bushing, and it is sheathed on bottom one segment length of drag-line 3, and the bottom of sleeve 1 can put in and be fixed on the crossbeam anchor case in the bridge floor 4, is provided with the tarpaulin 11 that the cross section roughly is umbrella in sleeve 1 top.
Among second embodiment shown in Figure 2, sleeve 1 ' is sheathed on drag-line 3 tops one segment length, and it is made up of two semi-rings, becomes whole through bolt, between sleeve 1 ' top and drag-line 3, is provided with anticorrosion flexible body 11 ', to play waterproof action.Vibration-reducing and damping device also comprises support 5, and support 5 can be steel bracket, and its two ends are supported respectively and are fixed on sleeve 1 ' and the bridge floor 4.
Among above-mentioned first and second embodiment, along one deck damping ring 2 (being preferably multilayer) at least that can distribute on the length direction of drag-line 3, each layer is provided with at least one damping ring 2 (being preferably a plurality of).As preferred embodiment; Can be distributed in along damping ring 2 on the length direction of drag-line 3 drag-line 3 around (as shown in Figure 3), like this, when drag-line 3 vibration; The damping ring 2 of all directions can work simultaneously, can further improve the oscillation damping and energy dissipating effect of device effectively.
Please together consult Fig. 3, the outer haversian canals 6 that are arranged with of drag-line 3, haversian canal 6 be two semi-circular, between haversian canal 6 and drag-line 3, be provided with flexible anti sheath (not shown), to prevent the wearing and tearing of 6 pairs of drag-lines 3 of haversian canal.Haversian canal 6 is provided with cringle 7, and the position of corresponding cringle 7 also is provided with cringle 8 on sleeve 1 inside wall.Cringle 7,8 is cylindric, and the length direction of its length direction and drag-line 3 parallels.Damping ring 2 wears and is fixed on the cringle 8 of cringle 7 and sleeve 1 of drag-line 3.
Under the normal condition, damping ring 2 does not stress, and when drag-line 3 vibrations, all damping rings 2 can work simultaneously, and it is drawn or pressurized by the installation site decision, and the energy of dissipation drag-line 3 vibrations is to 3 damping effects of drag-line.Since damping ring 2 be installed in drag-line 3 and sleeve 1 all around between, each damping ring 2 works (being drawn or pressurized) simultaneously during vibration, thereby can fully bring into play the power consumption effect of all damping rings 2 effectively.
As shown in Figure 5, be the 3rd embodiment of the utility model, its sleeve 1 " position that is installed on the drag-line 3 is similar with above-mentioned second embodiment, its sleeve 1 " be sheathed on drag-line 3 tops one segment length, and be supported on the bridge floor 4 through support 5.In the present embodiment, sleeve 1 " inside wall be provided with cringle 9, damping ring 2 " walk around the outer haversian canal 6 of drag-line 3 in advance after the stretch-draw and be fixed on the cringle 9.Drag-line 3 and sleeve 1 " around between can repeat above-mentioned steps through twining a plurality of pretensioned damping rings 2 ", but upper and lower multilayer setting.When drag-line 3 causes vibration by dynamic excitation, damping ring 2 " work, it can hold drag-line 3 in different directions, the energy during 3 vibrations of dissipation drag-line, thus drag-line 3 vibration dampings are played very favourable effect.
Please together consult Fig. 6, the damping ring 2 in the utility model turns to endless loop by twisted wire after can being wound in twisted wire by many shape-memory alloy wires 21 again.
Above-mentioned three kinds of embodiments all are bright through 3 as an exampleBSEMGVR takeN-PSVSEMOBJs of the drag-line in the cable stayed bridge; But the vibration-reducing and damping device of the utility model not only can be used as drag-line 3 vibration absorbers in the cable stayed bridge; Can also be as the suspension rod damping unit in suspension bridge and the arch bridge; Its mounting method and use and cable stayed bridge similar only need convert the drag-line 3 of accompanying drawing medium dip on vertical suspension rod and get final product, and this is repeated no more.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. vibration-reducing and damping device that is used for bridge cable or suspension rod; It is characterized in that; Comprise sleeve and damping ring, said jacket casing is located on drag-line or the suspension rod, has spacing between its inside wall and said drag-line or the suspension rod; Said damping ring is processed by marmem, and it is between said sleeve and said drag-line or suspension rod.
2. the vibration-reducing and damping device that is used for bridge cable or suspension rod as claimed in claim 1 is characterized in that, said damping ring turns to endless loop by said twisted wire after being wound in twisted wire by many shape-memory alloy wires.
3. the vibration-reducing and damping device that is used for bridge cable or suspension rod as claimed in claim 1 is characterized in that, said jacket casing is located at bottom one segment length of said drag-line or suspension rod, and the bottom of said sleeve is fixed in the bridge floor.
4. the vibration-reducing and damping device that is used for bridge cable or suspension rod as claimed in claim 1; It is characterized in that; Said jacket casing is located at said drag-line or suspension rod top one segment length, and said vibration-reducing and damping device also comprises support, and the two ends of said support are supported respectively and are fixed on said sleeve and the bridge floor.
5. the vibration-reducing and damping device that is used for bridge cable or suspension rod as claimed in claim 1; It is characterized in that; Said sleeve top is provided with the tarpaulin that the cross section is umbrella, perhaps between said sleeve top and drag-line or suspension rod, is provided with the anticorrosion flexible body of waterproof action.
6. the vibration-reducing and damping device that is used for bridge cable or suspension rod as claimed in claim 1 is characterized in that, on the length direction of said drag-line in edge or suspension rod, is distributed with the described damping ring of one deck at least, and each layer is provided with at least one described damping ring.
7. the vibration-reducing and damping device that is used for bridge cable or suspension rod as claimed in claim 6 is characterized in that, said damping ring be distributed in said drag-line or suspension rod around.
8. like any described vibration-reducing and damping device that is used for bridge cable or suspension rod in the claim 1 to 7; It is characterized in that; Said drag-line or suspension rod are arranged with haversian canal outward; Said haversian canal is provided with cringle, and the position of corresponding said cringle also is provided with cringle on the said sleeve inside wall, and said damping ring is fixed on the cringle of cringle and said sleeve of said haversian canal.
9. the vibration-reducing and damping device that is used for bridge cable or suspension rod as claimed in claim 8 is characterized in that said cringle is cylindric, and the length direction of its length direction and said drag-line or suspension rod parallels.
10. like any described vibration-reducing and damping device that is used for bridge cable or suspension rod in the claim 1 to 7; It is characterized in that; Said drag-line or suspension rod are arranged with haversian canal outward; The inside wall of said sleeve is provided with cringle, walks around the outer haversian canal of said drag-line or suspension rod after the preparatory stretch-draw of said damping ring and is fixed on the said cringle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204743344U CN202359499U (en) | 2011-11-23 | 2011-11-23 | Shock-absorbing damping device for bridge cables or suspenders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204743344U CN202359499U (en) | 2011-11-23 | 2011-11-23 | Shock-absorbing damping device for bridge cables or suspenders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202359499U true CN202359499U (en) | 2012-08-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204743344U Withdrawn - After Issue CN202359499U (en) | 2011-11-23 | 2011-11-23 | Shock-absorbing damping device for bridge cables or suspenders |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202359499U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518040A (en) * | 2011-11-23 | 2012-06-27 | 深圳大学 | Shock absorption damping device for bridge cable or suspender |
| CN103758029A (en) * | 2014-01-10 | 2014-04-30 | 东南大学 | Permanent-magnet tuned mass damping device for stayed cable vibration damping control |
| CN109518587A (en) * | 2019-01-22 | 2019-03-26 | 中铁二院工程集团有限责任公司 | A kind of board-like sunpender inhibiting Vortex-excited vibration |
-
2011
- 2011-11-23 CN CN2011204743344U patent/CN202359499U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518040A (en) * | 2011-11-23 | 2012-06-27 | 深圳大学 | Shock absorption damping device for bridge cable or suspender |
| CN102518040B (en) * | 2011-11-23 | 2013-11-20 | 深圳大学 | Shock absorption damping device for bridge cable or suspender |
| CN103758029A (en) * | 2014-01-10 | 2014-04-30 | 东南大学 | Permanent-magnet tuned mass damping device for stayed cable vibration damping control |
| CN103758029B (en) * | 2014-01-10 | 2015-10-07 | 东南大学 | A kind of magneto mass tuning damping unit controlled for suspension cable vibration damping |
| CN109518587A (en) * | 2019-01-22 | 2019-03-26 | 中铁二院工程集团有限责任公司 | A kind of board-like sunpender inhibiting Vortex-excited vibration |
| CN109518587B (en) * | 2019-01-22 | 2023-09-29 | 中铁二院工程集团有限责任公司 | Plate-type suspender for inhibiting vortex-induced resonance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120801 Effective date of abandoning: 20131120 |
|
| RGAV | Abandon patent right to avoid regrant |