CN202755295U - Liquid viscous damper with operating switch - Google Patents
Liquid viscous damper with operating switch Download PDFInfo
- Publication number
- CN202755295U CN202755295U CN 201220328050 CN201220328050U CN202755295U CN 202755295 U CN202755295 U CN 202755295U CN 201220328050 CN201220328050 CN 201220328050 CN 201220328050 U CN201220328050 U CN 201220328050U CN 202755295 U CN202755295 U CN 202755295U
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- Prior art keywords
- damper
- rod
- viscous damper
- liquid viscous
- inner sleeve
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- 239000007788 liquid Substances 0.000 title claims abstract description 10
- 239000012530 fluid Substances 0.000 claims description 20
- 238000013016 damping Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 229920002545 silicone oil Polymers 0.000 claims description 2
- 239000000725 suspension Substances 0.000 abstract description 8
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract 2
- 238000013459 approach Methods 0.000 abstract 1
- 230000000116 mitigating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 238000007667 floating Methods 0.000 description 7
- 206010016256 fatigue Diseases 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000002354 daily effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000002910 structure generation Methods 0.000 description 1
Images
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- Bridges Or Land Bridges (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The utility model provides a liquid viscous damper with an operating switch and belongs to the field of structure energy dissipation and seismic mitigation technology. The liquid viscous damper is characterized in that a fixed connection rod is arranged between an end socket connection rod of a piston rod and the fixed end of one side of a typical liquid viscous damper. An inner sleeve rod and a cylindrical outer sleeve slide relatively, and the fixed connection rod enables a piston of the damper not to move relative to the outer wall of a hydraulic cylinder. When the shift of the inner sleeve rod reaches to the setting maximum shift value, the inner sleeve rod contacts with a brake switch on a stopping block capable of ejecting out in the outer sleeve, the stopping block capable of ejecting out ejects out, and an brake head of an end socket of the inner sleeve rod is clamped under the function of the stopping block capable of ejecting out and a fixed stopping block. The inner sleeve rod is locked and can not slide relative to the outer sleeve any more, and the fixed connection rod is damaged due to force bearing under the action of impact force, and the damper starts operation of shock adsorption and energy dissipation. The liquid viscous damper with the operating switch has the advantages that the liquid viscous damper with the operating switch is expected to be applied to suspension bridges with central buckles or cable-stayed bridges in a float system, and other structures, can prolong service life, and guarantees that the damper plays relative roles of shock adsorption and energy dissipation when a large vibration approaches.
Description
Technical field
The invention belongs to Structural Energy Dissipation damping (shaking) technical field, relate to bridge and design of building structures, specially refer to the fluid viscous damper with operating switch.
Background technology
Fluid viscous damper is widely used in bridge construction and building structure, has not only opened up a slice new world of bridge engineering and structural engineering, and has solved the problem that a lot of traditional structures can't resolve.But fluid viscous damper is since producing, and leakage of oil is a problem that all the time perplexs everybody.
After damper is arranged to and begins one's duty on the bridge, the dynamic loading that faces every day is the small movements that the bridge day-to-day operation produces, the shock and vibration that for example vibration of fluctuating wind generation, the vehicle that frequently passes through produce bridge, particularly on the bridge construction of floating or half floating system, will inevitably cause the wearing and tearing of damper internal part to reach aging under the chronic fatigue effect of vibration, even after reaching certain iterative motion number of times, produce the phenomenon of damper leakage of oil, finally cause the inefficacy of damper.Therefore such phenomenon can appear: when earthquake does not also occur, leakage of oil of damper or the fatigue damage that has produced member, and when earthquake occurs, damper can't reach the cushioning effect to the structure expection, even damper is entirely ineffective, causes the serious seismic damage of structure generation.
Existing fluid viscous damper mainly comprises with Types Below: conventional liq viscous damper, locking device, fusing type fluid viscous damper, spacing-type fluid viscous damper, friction-type fluid viscous damper.Fusing type fluid viscous damper wherein has the characteristic in following two stages: for conventional loads such as wind, temperature, brake, small earthquakes, the two ends relative motion does not occur in damper as the rigidity connecting rod; And in strong wind and violent earthquake, when surpassing certain dynamic loading, damper begins relative motion, and consumes vibrational energy.Fusing type fluid viscous damper can realize this hope well.And the viscous damper of existing other concentrated types the military service back piston namely begins to move back and forth to start working on the bridge being arranged to.
Although fusing type fluid viscous damper can make damper not work under the conventional load actions such as wind, temperature, brake, small earthquake, prolong the damper life-span, but for suspension bridge and the cable stayed bridge of floating or half floating system, fusing type fluid viscous damper just can't solve this critical problem of wanting relaxed constraints under the routine work state.
Summary of the invention
The technical problem to be solved in the present invention is: the present invention can be under the beam end displacement that daily vibration and system's heating and cooling cause, make damper piston and hydraulic cylinder not produce relative motion, structure there is not effect of contraction, and the impact load that the cable stayed bridge day-to-day operation of floating system or half floating system produces is born by the suspension cable elastic restraint, suspension bridge is detained to bear by central authorities, the fatigue wear that so just can not produce damper reaches aging, the oil leakage phenomenon that also just can not cause long-term reciprocating motion to produce afterwards, when strong wind or large shake generation, damper is started working.
Technical scheme of the present invention is: structure is made of the two large divisions, a part is the typical liquid viscous damper that has increased stationary links, another part is for being the slip brake device, the slip brake device by fixed end, fixed stop, can eject block and brake switch, brake head, outer sleeve, interior loop bar consists of; Connecting the collar by annular between this two-part structure utilizes screw thread to link to each other, connect the collar internal thread is arranged, the cylindrical piston rod end head connecting rod of the cylindrical interior loop bar of slip brake device termination and typical liquid viscous damper termination is equipped with external screw thread, the slip brake device that the collar that can be rotatably connected more renews when the slip brake device goes wrong.Be provided with stationary links between the fixed end of piston rod end connecting rod and typical liquid viscous damper one side, under daily small vibration and system's heating and cooling effect, interior loop bar and the cylindric outer sleeve of slip brake device are relative slidings, and stationary links makes damper rod and hydraulic cylinder outer wall not produce relative motion; When structure meets with earthquake or strong wind, the displacement of stiff girder reaches the maximum displacement limit value of setting, touch the brake switch that can eject in the slip brake device outer sleeve on the block, can eject that block ejects and block the brake head of inner sleeve rod end head with the fixed stop acting in conjunction, interior loop bar locked no longer with the outer sleeve relative sliding, at this moment stationary links is destroyed at the impact force action lower stress of earthquake or strong wind generation, damper rod and hydraulic cylinder outer wall begin relative motion, silicone oil in the oil pocket flows by oilhole, and damper begins the work of damping power consumption.Wherein can eject block and be hidden in before brake head does not touch brake switch in the outer sleeve, fixed stop and the clear spacing that can eject block equal the thickness of inner sleeve rod end head brake head, guarantee to block brake head, and interior loop bar is no longer moved.
Effect of the present invention and benefit are: the type damper expection can be widely used in being provided with the suspension bridge of central authorities' button or the cable stayed bridge of floating system, and needs relaxed constraints and damper is had an effect when shaking greatly building structure under daily operation.Can prolong the application life of damper, avoid the wearing and tearing of the damper internal part that causes under the chronic fatigue effect of vibration, phenomenon aging and the damper leakage of oil to occur, guarantee that damper can play corresponding damping power consumption effect in large shake temporarily.
Description of drawings
Accompanying drawing 1 is the sectional drawing with fluid viscous damper of operating switch.
Accompanying drawing 2 is the fluid viscous damper installation site elevation with operating switch.
Accompanying drawing 3 is the fluid viscous damper installation site plan views with operating switch.
Accompanying drawing 4 is the concrete mounting vertical plane figure with fluid viscous damper of operating switch.
Accompanying drawing 5 is the concrete mounting plane figure with fluid viscous damper of operating switch.
Among Fig. 1: 1 fixed end; 2 fixed stops; 3 can eject block and brake switch; 4 brake heads; 5 outer sleeves; 6 interior loop bars; 7 connect the collar; 8 piston rod end connecting rods; 9 piston rods; 10 hydraulic cylinder outer walls; 11 piston heads; 12 oil pockets; 13 oilholes; 14 seal closures; 15 stationary links.
Among Fig. 2, Fig. 3: 16 have the fluid viscous damper of operating switch.
Among Fig. 4, Fig. 5: 17 anchorages or main pier; 18 main trusses.
The specific embodiment
Be described in detail the specific embodiment of the present invention below in conjunction with technical scheme and accompanying drawing.
Three stride double-deck earth anchored suspension bridge, and stiff girder is steel truss structure, and the concrete gravity type anchorage is established at two ends.The footpath is striden in calculating: 180m+460m+180m=820m, the wide 24m of main bridge truss axis.Main push-towing rope is comprised of multiply parallel steel wire finished product rope, in to stride the main push-towing rope ratio of rise to span be 1/6.667, end bay main push-towing rope ratio of rise to span is 1/16.67, main push-towing rope direction across bridge spacing 25.2m, suspension rod along bridge to spacing 10m.
Design load: vehicular load: highway-I level, two-way eight tracks; The category-A wind field is pressed at the bridge location place, the high 10min mean wind speed of a-hundred-year 10m: 43m/s, blast: 1.13KN/m
2
Earthquake intensity: 7 degree
Safety classes of structure: one-level
Design reference period: the design reference period of bridge construction is 100 years.
Be installation site of the present invention elevation such as Fig. 2, Fig. 3 is installation site of the present invention plan view, Fig. 4 and Fig. 5 are respectively concrete mounting vertical plane figure of the present invention and plan view, arranging totally 8 fluid viscous damper with operating switch between main truss lower edge and anchorage and between main pier and the main truss lower edge simultaneously, can make suspension bridge in routine use, only depend on central authorities' button to bear the work that suppresses the stiff girder length travel, when earthquake or wind effect, damper and central authorities' button acting in conjunction are finished wind resistance damping (shaking) work to structure.
Claims (1)
1. fluid viscous damper with operating switch, it is characterized in that: be provided with stationary links (15) between the fixed end (1) of piston rod end connecting rod (8) and typical liquid viscous damper one side, piston rod end connecting rod (8) links to each other by being connected the collar (7) with interior loop bar (6); Interior loop bar (6) and cylindric outer sleeve (5) are relative slidings, and stationary links (15) makes damper rod (9) and hydraulic cylinder outer wall (10) not produce relative motion; Reach the maximum displacement limit value of setting when the displacement of interior loop bar (6), touch the brake switch (3) that can eject in the outer sleeve (5) on the block, can eject that block (3) ejects and block the brake head (4) of inner sleeve rod end head with fixed stop (2) acting in conjunction, interior loop bar (6) locked no longer with outer sleeve (5) relative sliding, stationary links (15) is destroyed at the impact force action lower stress, damper rod (9) and piston head (11) and hydraulic cylinder outer wall (10) beginning relative motion, silicone oil in the oil pocket (12) flows by oilhole (13), and damper begins the work of damping power consumption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220328050 CN202755295U (en) | 2012-07-05 | 2012-07-05 | Liquid viscous damper with operating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220328050 CN202755295U (en) | 2012-07-05 | 2012-07-05 | Liquid viscous damper with operating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202755295U true CN202755295U (en) | 2013-02-27 |
Family
ID=47734484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220328050 Expired - Lifetime CN202755295U (en) | 2012-07-05 | 2012-07-05 | Liquid viscous damper with operating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202755295U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720124A (en) * | 2012-07-05 | 2012-10-10 | 大连理工大学 | Fluid viscous damper with working switch |
| CN106609493A (en) * | 2016-12-30 | 2017-05-03 | 无锡市弘谷振控技术有限公司 | Built-in damp damping device for stay cable |
| CN114108448A (en) * | 2021-11-16 | 2022-03-01 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Flexible central buckle of suspension bridge with energy consumption and from reset function |
-
2012
- 2012-07-05 CN CN 201220328050 patent/CN202755295U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720124A (en) * | 2012-07-05 | 2012-10-10 | 大连理工大学 | Fluid viscous damper with working switch |
| CN102720124B (en) * | 2012-07-05 | 2014-04-02 | 大连理工大学 | Fluid viscous damper with working switch |
| CN106609493A (en) * | 2016-12-30 | 2017-05-03 | 无锡市弘谷振控技术有限公司 | Built-in damp damping device for stay cable |
| CN106609493B (en) * | 2016-12-30 | 2018-08-10 | 无锡市弘谷振控技术有限公司 | Stay cable internal damping device |
| CN114108448A (en) * | 2021-11-16 | 2022-03-01 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Flexible central buckle of suspension bridge with energy consumption and from reset function |
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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: 20130227 Effective date of abandoning: 20140402 |
|
| RGAV | Abandon patent right to avoid regrant |