CN101962934B - One-way movable damper for bridge - Google Patents
One-way movable damper for bridge Download PDFInfo
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- CN101962934B CN101962934B CN2010102938297A CN201010293829A CN101962934B CN 101962934 B CN101962934 B CN 101962934B CN 2010102938297 A CN2010102938297 A CN 2010102938297A CN 201010293829 A CN201010293829 A CN 201010293829A CN 101962934 B CN101962934 B CN 101962934B
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- basin
- boss
- seat board
- bridge
- pin
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- 238000013016 damping Methods 0.000 claims abstract description 27
- 230000035939 shock Effects 0.000 claims description 21
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 14
- 238000006073 displacement reaction Methods 0.000 description 9
- 239000004033 plastic Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 235000001167 Melaleuca cajuputi Nutrition 0.000 description 1
- 244000304222 Melaleuca cajuputi Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The invention discloses a one-way movable damper for a bridge. The damper comprises an upper seat plate (1), a lower seat plate (2) and a speed lock (9), wherein the lower seat plate (2) is provided with a basin ring (8) which can slide relative to the lower seat plate (2); the cavity of the basin ring (8) is provided with a damping spring (3) and a basin plug (4); the basin plug (4) is supported by the damping spring (3); the lower surface of the upper seat plate (1) is provided with a boss (1a) which is pressed against the basin plug (4); both the boss and the basin plug (4) are provided with pin holes; and a damping pin (5) is inserted into the space between the two pin holes. The damper has the advantages of simple structure, skillful concept and good damping effect; and damping components are convenient to mount and dismount.
Description
Technical field
The invention belongs to the bridge technology field, relate to a kind of unidirectional movable damper that is used for bridge concretely.
Background technology
China is the multiple state of an earthquake.How antidetonation and damping are to carry out the problem that bridge design must be paid attention to.The various earthquake isolating equipments that subtract been have have been researched and developed.The bridge design of domestic existing application at present subtracts earthquake isolating equipment and mainly contains two types, and a kind of is that monolithic subtracts earthquake isolating equipment, and a kind of is that separate type subtracts earthquake isolating equipment.Monolithic subtracts earthquake isolating equipment has lead core rubber support, high-damping rubber bearing, friction swing bearing etc.Also all there are the pluses and minuses of self in various bearings.Lead core rubber support, high-damping rubber bearing since lateral stiffness a little less than, be difficult to satisfy the requirement of bridge power performance aspect; The friction swing bearing is the improvement to common spherical bearing, because this bearing adopts hyperboloid, during earthquake; After fixed bearing is cut off its horizontal restraint; In the occurred level displacement, can produce certain vertical displacement, and have certain reset function; But this bearing can make superstructure produce a certain amount of rising displacement in seismic process; The difference rising displacement meeting of each pier produces the beam body and does not wait high support settlement, causes the irregularity of driving and the inferior internal force of girder, thus superstructure is produced earthquake.
At present, domestic popular bearing is main with whole bearing still, but the research of function divergence type bearing, in continuous progress.The monolithic devices bearing also will satisfy lateral bearing power and lateral displacement satisfying under the prerequisite of vertical bearing capacity, and the easy like this area of bearing that causes is excessive, and extremely difficulty satisfies the displacement of bridge and the needs of traffic safety.Particularly China through twice violent earthquake (Wenchuan earthquake and Qinghai cajaput earthquake) after, the isolation design that subtracts of bridge becomes imperative research work.How to make vibration absorption and isolation support normally realize subtracting the requirement of shock insulation when using satisfying, and can change conveniently with earthquake, simple, become the emphasis of research.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, good damping effect and be convenient for changing, install, can effectively improve shock-damping structure assembly application life in the unidirectional movable shock mount of bridge.
Technical scheme of the present invention is following:
A kind of unidirectional movable damper that is used for bridge comprises upper base plate, following seat board and speed lock, and said seat board down is provided with the basin ring; This basin ring can slide by said relatively seat board down, is provided with damping spring, basin plug at said basin ring inner chamber, and wherein said basin plug leans on said damping spring to support; Said upper base plate soffit has boss; This boss and said basin plug lean, and said boss and basin plug all have pin-and-hole, are inserted with shock stop pin between two pin-and-holes; Be fixedly coupled seat on said speed lock two ends and the said down seat board and be connected, said basin ring-side wall is provided with journal stirrup, and this journal stirrup is connected on the connecting rod at said speed lock two ends.
When bridge was normally runed, the speed lock was inoperative, and along with the displacement that temperature and mobile load produce, the speed lock is realized the variation of beam displacement body.Take place between basin ring and the following seat board to slide relatively.At this moment, shock stop pin bends and is elastic stage, and bearing only bears the bridge horizontal force and adapts to the rotation of beam body.Earthquake comes interim, and the speed lock pins the slide surface between basin ring and the undersetting according to setting speed, and at this moment, unidirectional freely movable bearing transfers fixed bearing to.Bridge pier is born and passed to the bridge seismic forces jointly by all horizontal force bearings, reduced the seismic forces that single bridge pier bore greatly.
Under the frequently occurred earthquake level, shock stop pin is in elastic stage, and unidirectional freely movable bearing is resisted the earthquake horizontal force jointly;
Under the design earthquake level, except that producing elastic deformation, also there is a spot of plastic strain in shock stop pin generation elastic-plastic deformation, plays surrender power consumption effect;
During rarely occurred earthquake, shock stop pin produces plastic strain even fracture, plays the energy dissipating effect, and simultaneously, upper base plate produces horizontal sliding under seismic force effects, and at this moment, high-damping rubber begins effect, plays the damping shock absorption effect.
During earthquake, possibly there is vertical seismic forces.The damping spring of this programme through between horizontal force bearing basin ring and basin plug, setting up, that can satisfy bridge to a certain extent vertically subtracts the shock insulation requirement.Simultaneously, when the beam body came to nothing with the vertical force bearing because of vertical seismic forces, the horizontal force bearing can provide certain vertical counter-force temporarily, thereby reduced the impact to bearing of beam body drop following time.
The upper and lower seat board of bearing respectively with beam body bottom and firm the linking together of pier, the basin ring forms position-limiting action to upper base plate, even make under the rarely occurred earthquake situation, during the shock stop pin fracture, guarantees the beam body beam that can not fall.
Said basin ring all has gathering sill with the middle part of following seat board, is provided with guide pad between two gathering sills.
Guide pad produces between basin ring and following seat board when sliding relatively and play the guiding role.
Also be provided with slide plate between said basin ring and the following seat board.
Between said basin ring inwall and said outer wall of boss, be provided with the high-damping rubber circle.
During rarely occurred earthquake, shock stop pin produces plastic strain even fracture, plays the energy dissipating effect, and simultaneously, upper base plate produces horizontal sliding under seismic force effects, and at this moment, the high-damping rubber circle begins effect, plays the damping shock absorption effect.
The pin-and-hole of said boss is up-small and down-big shoulder hole, and said shock stop pin external diameter and said shoulder hole small end internal diameter are complementary.
The effect that is provided with of shoulder hole is; In when, between upper base plate and the piston seat relative displacement taking place when; The stub end of shoulder hole is that the lower end makes and has a determining deviation between the application point of application point, piston seat and shock stop pin of boss and shock stop pin; Make that like this boss and piston seat are not shear effects completely to shock stop pin, shock stop pin plays first meeting and produces certain crooked elastic-plastic deformation, plays the effect of surrender energy dissipating.
Said damping spring is a disk spring, and this disk spring is sleeved on the positive stop lug boss of the said middle part setting of seat board down.
Be compressed under the disk spring normal condition, when between upper base plate and the following seat board separation trend being arranged, the disk spring upper end is drawn in to the centre and is remained the supporting role to piston seat.
Beneficial effect: the present invention is simple in structure, be skillfully constructed, anti seismic efficiency is good and the easy installation and removal of antidetonation assembly.
Description of drawings
The present invention will explain through example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a stereogram of the present invention.
The specific embodiment
Embodiment: like Fig. 1, shown in 2: a kind of unidirectional movable damper that is used for bridge; Comprise upper base plate 1, following seat board 2 and speed lock 9, said seat board 2 down is provided with basin ring 8, and this basin ring 8 can slide by said relatively seat board down 2; Be provided with damping spring 3, basin plug 4 at said basin ring 8 inner chambers; Wherein said basin plug 4 leans on said damping spring 3 to support, and said upper base plate 1 soffit has boss 1a, and this boss 1a and said basin plug 4 lean; Said boss and basin plug 4 all have pin-and-hole, are inserted with shock stop pin 5 between two pin-and-holes; Be fixedly coupled seat 10 on said speed lock 9 two ends and the said down seat board 2 and be connected, said basin ring 8 sidewalls are provided with journal stirrup 11, and this journal stirrup 11 is connected on the connecting rod at said speed lock 9 two ends.
Said basin ring 8 all has gathering sill with the middle part of following seat board 2, is provided with guide pad 12 between two gathering sills.Also be provided with slide plate 13 between said basin ring 8 and the following seat board 2.
Between said basin ring 8 inwalls and said boss 1a outer wall, be provided with high-damping rubber circle 6.
The pin-and-hole of said boss 1a is up-small and down-big shoulder hole, and said shock stop pin 5 external diameters and said shoulder hole small end internal diameter are complementary.
Said damping spring 3 is a disk spring, and this disk spring is sleeved on the said down positive stop lug boss 2a that seat board 2 middle parts are provided with.
Claims (6)
1. unidirectional movable damper that is used for bridge; Comprise upper base plate (1), following seat board (2) and speed lock (9), it is characterized in that: said seat board (2) down is provided with basin ring (8), and this basin ring (8) can slide by said relatively seat board (2) down; Be provided with damping spring (3), basin plug (4) at said basin ring (8) inner chamber; Wherein said basin plug (4) leans on said damping spring (3) to support, and said upper base plate (1) soffit has boss (1a), and this boss (1a) leans with said basin plug (4); Said boss and basin plug (4) all have pin-and-hole, are inserted with shock stop pin (5) between two pin-and-holes; Be fixedly coupled seat (10) on said speed lock (9) two ends and the said down seat board (2) and be connected, said basin ring (8) sidewall is provided with journal stirrup (11), and this journal stirrup (11) is connected on the connecting rod at said speed lock (9) two ends.
2. a kind of unidirectional movable damper that is used for bridge according to claim 1 is characterized in that: said basin ring (8) all has gathering sill with the middle part of following seat board (2), is provided with guide pad (12) between two gathering sills.
3. a kind of unidirectional movable damper that is used for bridge according to claim 2 is characterized in that: also be provided with slide plate (13) between said basin ring (8) and the following seat board (2).
4. according to claim 1,2 or 3 described a kind of unidirectional movable dampers that are used for bridge, it is characterized in that: between said basin ring (8) inwall and said boss (1a) outer wall, be provided with high-damping rubber circle (6).
5. a kind of unidirectional movable damper that is used for bridge according to claim 4, it is characterized in that: the pin-and-hole of said boss (1a) is up-small and down-big shoulder hole, said shock stop pin (5) external diameter and said shoulder hole small end internal diameter are complementary.
6. want 4 described a kind of unidirectional movable dampers that are used for bridge according to right, it is characterized in that: said damping spring (3) is a disk spring, and this disk spring is sleeved on the positive stop lug boss (2a) of the said middle part setting of seat board (2) down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102938297A CN101962934B (en) | 2010-09-28 | 2010-09-28 | One-way movable damper for bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102938297A CN101962934B (en) | 2010-09-28 | 2010-09-28 | One-way movable damper for bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101962934A CN101962934A (en) | 2011-02-02 |
| CN101962934B true CN101962934B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102938297A Active CN101962934B (en) | 2010-09-28 | 2010-09-28 | One-way movable damper for bridge |
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| CN (1) | CN101962934B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953329A (en) * | 2012-11-27 | 2013-03-06 | 柳州东方工程橡胶制品有限公司 | Bridge viscous damping shock-absorption supporting seat |
| CN103924705B (en) * | 2014-04-23 | 2015-06-10 | 华南理工大学建筑设计研究院 | Stiffness-variable seismic isolation layer stiffness control mechanism adaptive to structural seismic isolation and wind resistance |
| CN111395157A (en) * | 2019-01-03 | 2020-07-10 | 大连理工大学 | Annular rubber multi-dimensional damping support |
| CN113494048B (en) * | 2021-08-02 | 2022-11-15 | 淮南市公路管理局直属分局 | Anti-seismic device for highway bridge |
| CN113914208B (en) * | 2021-09-07 | 2023-05-09 | 重庆文理学院 | Bridge anti-seismic support |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1421582A (en) * | 2001-11-26 | 2003-06-04 | 李兆治 | Shock isolation support |
| CN201473875U (en) * | 2009-07-30 | 2010-05-19 | 袁关生 | Shock-absorbing one-way basin-type support |
| CN201873944U (en) * | 2010-09-28 | 2011-06-22 | 成都市新筑路桥机械股份有限公司 | One-way moving shock absorber for bridge |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62251543A (en) * | 1986-04-23 | 1987-11-02 | Hitachi Zosen Corp | Balance type vibration absorber |
| US6572071B1 (en) * | 2001-11-16 | 2003-06-03 | Chung-Shien Tsai | Shock eliminator |
-
2010
- 2010-09-28 CN CN2010102938297A patent/CN101962934B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1421582A (en) * | 2001-11-26 | 2003-06-04 | 李兆治 | Shock isolation support |
| CN201473875U (en) * | 2009-07-30 | 2010-05-19 | 袁关生 | Shock-absorbing one-way basin-type support |
| CN201873944U (en) * | 2010-09-28 | 2011-06-22 | 成都市新筑路桥机械股份有限公司 | One-way moving shock absorber for bridge |
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| Publication number | Publication date |
|---|---|
| CN101962934A (en) | 2011-02-02 |
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Effective date of registration: 20240112 Address after: 611400 No. 799, hope road, Wujin street, Xinjin District, Chengdu, Sichuan (Industrial Park) Patentee after: Chengdu Xinzhu Transportation Technology Co.,Ltd. Address before: 611430 Xinjin Industrial Park, Sichuan, Chengdu Patentee before: CHENGDU XINZHU ROAD & BRIDGE MACHINERY Co.,Ltd. |
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