CN204001206U - Damper ball fixed bearing - Google Patents
Damper ball fixed bearing Download PDFInfo
- Publication number
- CN204001206U CN204001206U CN201420305917.8U CN201420305917U CN204001206U CN 204001206 U CN204001206 U CN 204001206U CN 201420305917 U CN201420305917 U CN 201420305917U CN 204001206 U CN204001206 U CN 204001206U
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- China
- Prior art keywords
- plate
- guide strip
- shear studs
- upper bracket
- slide plate
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- Expired - Fee Related
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- Bridges Or Land Bridges (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses a kind of damper ball fixed bearing, comprise lower support plate, upper bracket plate, crab-bolt and sleeve, also include guide strip and shear studs, between described lower support plate and upper bracket plate, be also disposed with from below to up yielding rubber plate, ball impression liner plate, sphere slide plate, spherical crown liner plate and damping slide plate, damping slide plate and sphere slide plate are attached to respectively spherical crown liner plate upper and lower surface; Described guide strip and shear studs are quadruplet, and guide strip is fixed on front, rear, left and right four ends of upper bracket plate through shear studs.The utility model arranges yielding rubber plate in lower support plate, and the potential energy and the heat energy that by the vertical kinetic transformation of Bridges During Earthquake, are self, reduced the hard impact between support part; By shear studs, guide strip is solid on upper bracket plate, if shear studs is cut off, only need to change shear studs and guide strip is resetted and bearing can be returned to normal operating condition.
Description
Technical field
The utility model relates to bridge, construction engineering technical field, is specifically related to the damper ball fixed bearing that a kind of damping effect is good.
Background technology
Earthquake is because of the earth interior epidermic vibration that slowly the energy sudden outburst of accumulation causes; Strong ground vibration, can directly and indirectly cause collapsing and destroying of bridge, building, becomes disaster.
Since 20th century, a large amount of scholars devote the scientific research of earthquake, until substantially set up " earthquake engineering theoretical system " fifties in last century, are familiar with the origin cause of formation, the mechanism of earthquake in signification.After the seventies, antidetonation theory is developed rapidly, particularly subtracts, seismic isolation technology proposes, and to Construction Anti-earthquake, revolutionary effect is played in design.Subtract, seismic isolation technology adopted and defeated a force with a tenderness, and broken through traditional " fat beams and columns " hard anti-theory, greatly reduces construction costs when having promoted the whole shock resistance of Structural Engineering.
Within 1973, New Zealand builds up First Isolated Bridges, and in March, 1987, the earthquake that earthquake intensity is 9 degree occurred, and is that indivedual bearings produce larger displacement, after shake, is repaired very soon; In April, 1992 California, USA violent earthquake (peak accelerator 0.55g), Eel River Bridge employing subtracts, shock insulation design, and shake axle casing is excellent.So far, existing thousands of engineering adopt subtract, shock insulation design concept.
FDSB pendulum model shock isolating pedestal is the shock isolating pedestal for bridge engineering, construction work according to the principle research and development of single pendulum; Traditional bridge or the natural vibration period of building structure are rigidity, the quality that depends on structure, if will recurring structure resonance cause structural earthquake to damage when its natural vibration period is consistent with the seismic wave characteristic cycle; For avoiding this phenomenon, by pendulum model shock isolating pedestal (substitute conventional bridge pad) is set between bridge and bridge pier, adjusts bridge construction system and reduce bridge construction seismic response natural vibration period.This type of shock isolating pedestal was applied on the eighties American Engineering as far back as last century, now become that American-European developed regions mainly select subtract, shock insulation product.
Pendulum model shock mount has two slide planes, and centre is spherical crown liner plate, and the Frictional Slipping by spherical crown liner plate and two slide planes provides needed displacement.Pendulum model shock mount is converted into the part energy of earthquake heat energy and by pendulum model structure, the part energy of earthquake is converted into potential energy by the material of high temperature resistant, great friction coefficient, high abrasion characteristic, pendulum model structure can realize self-recovery simultaneously, need not shake rear adjustment.
Antidetonation pot rubber bearing, utilizes the elasticity of rubber, reduces the injury of earthquake to bridge.Time To Market early, is applied more extensive.
Anti-seismic tumbler bearing, upper and lower support plate can relatively rotate, and can slide along design limiting direction.In the process of relative motion, utilize the material of heatproof, great friction coefficient, high abrasion characteristic that seismic energy is converted into heat energy, to reach damping effect.And existing pendulum model shock mount can only weaken the kinetic energy of horizontal direction, can not absorb or weaken the kinetic energy of vertical direction.Antidetonation pot rubber bearing can not absorb or weaken the kinetic energy of vertical direction, can not self-recovery.For Anti-seismic tumbler bearing, in design, do not allow the seismic energy of relative sliding direction, can only lean on bearing self to bear, once destroy, be exactly permanent damage, can not repair.
Utility model content
For above-mentioned prior art, the purpose of this utility model is how to provide a kind of damper ball fixed bearing, it is intended to solve the kinetic energy that existing damper bearing can only weaken horizontal direction, can not absorb or weaken vertical direction kinetic energy and can not self-recovery and the technical problem that can not repair.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of damper ball fixed bearing, comprise lower support plate, upper bracket plate, crab-bolt and sleeve, it is characterized in that, also include guide strip and shear studs, between described lower support plate and upper bracket plate, be also disposed with from below to up yielding rubber plate, ball impression liner plate, sphere slide plate, spherical crown liner plate and damping slide plate, damping slide plate and sphere slide plate are attached to respectively spherical crown liner plate upper and lower surface; Described guide strip and shear studs are quadruplet, and guide strip is fixed on front, rear, left and right four ends of upper bracket plate through shear studs.
In the utility model, described sphere slide plate, damping slide plate and yielding rubber plate form combined shock absorption structure.
In the utility model, described yielding rubber plate is made by natural rubber, plays cushioning effect.
Design principle of the present utility model is:
One, utilizing pendulum model structure is potential energy by the Conversion of Energy of earthquake horizontal direction, after earthquake, again by potential energy converting and energy kinetic energy; In the process that kinetic energy and potential energy are changed mutually, upper bracket plate and spherical crown liner plate, spherical crown liner plate and ball impression liner plate produce mutually and slide, and high temperature resistant, the great friction coefficient on slide plane, the material of high abrasion characteristic can be converted into heat energy by seismic energy.
Two, utilize the elasticity of rubber to absorb the vertical kinetic energy of Bridges During Earthquake, be translated into potential energy and the heat energy of self.
Compared with prior art, the utlity model has following beneficial effect:
One, the utility model arranges yielding rubber plate in lower support plate, utilize the elasticity of rubber to absorb the vertical kinetic energy of Bridges During Earthquake, be translated into self potential energy and heat energy, this yielding rubber buttress produces different compress variations according to the variation of vertical bearing capacity, reduced the hard impact between support part.
Two, under the restriction of guide strip, the relative upper bracket plate of spherical crown liner plate and ball impression liner plate are done pendular movement, and damping slide plate is attached on spherical crown liner plate, with upper bracket plate generation sliding friction, absorb the kinetic energy of bearing, and to distribute heat in air, so greatly improved the damping effect of bearing.
Three, by shear studs, guide strip is solid on upper bracket plate, when earthquake surpasses some strength, the relative skidding distance of upper and lower support plate increases greatly, clash into making guide strip cut off shear studs even energetically, after earthquake, only need to change shear studs, guide strip is resetted, just bearing can be returned to normal operating condition.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is right view of the present utility model;
Reference numeral is: 1 is that lower support plate, 2 is that yielding rubber plate, 3 is that ball impression liner plate, 4 is that sphere slide plate, 5 is that spherical crown liner plate, 6 is that damping slide plate, 7 is that upper bracket plate, 8 is that crab-bolt, 9 is that sleeve, 10 is that shear studs, 11 is guide strip.
The specific embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model will be further described.
A kind of damper ball fixed bearing, comprise lower support plate, upper bracket plate, crab-bolt and sleeve, it is characterized in that, also include guide strip and shear studs, between described lower support plate and upper bracket plate, be also disposed with from below to up yielding rubber plate, ball impression liner plate, sphere slide plate, spherical crown liner plate and damping slide plate, damping slide plate and sphere slide plate are attached to respectively spherical crown liner plate upper and lower surface; Described guide strip and shear studs are quadruplet, and guide strip is fixed on front, rear, left and right four ends of upper bracket plate through shear studs.
Embodiment mono-
Shown in Fig. 1 and Fig. 2, the utility model, by cast-in fixing bolt 8 and sleeve 9, is fixed on upper bracket plate 7 on bridge, and undersetting plate 1 is fixed on bridge pier.
Normal operating conditions, or earthquake is not while reaching some strength, and under the restriction of guide strip, the upper and lower support plate of bearing is along main displacement direction generation relative sliding.Now, there is following action in bearing: yielding rubber plate 2 produces different compress variations according to the variation of vertical bearing capacity, reduces the hard impact between support part; The relative upper bracket plate 7 of spherical crown liner plate 5 is done pendular movement, and damping slide plate 6 is attached on spherical crown liner plate, with upper bracket plate generation sliding friction, absorbs the kinetic energy of bearing, and to distribute heat in air; The relative ball impression liner plate 3 of spherical crown liner plate 5 rotates, and sphere slide plate 4 is embedded in ball impression liner plate, with spherical crown liner plate generation sliding friction, absorbs the kinetic energy of bearing, and to distribute heat in air.
When earthquake surpasses some strength, the relative skidding distance of upper and lower support plate increases greatly, clashes into even energetically guide strip 11, makes it to cut off shear studs 10.Can, by the different spherical radius of design upper bracket plate, reach different shock insulation time demands.After earthquake, only need to change shear studs, guide strip is resetted, just bearing can be returned to normal operating condition.
Embodiment bis-
The upper and lower support plate of fixed bearing can not relative sliding, can only relatively rotate.After shear studs 11 is cut off in earthquake, the upper and lower support plate of one-way support, bilateral support and fixed bearing all can be done pendulum fortune merit by along continuous straight runs.
Claims (3)
1. a damper ball fixed bearing, comprise lower support plate, upper bracket plate, crab-bolt and sleeve, it is characterized in that, also include guide strip and shear studs, between described lower support plate and upper bracket plate, be also disposed with from below to up yielding rubber plate, ball impression liner plate, sphere slide plate, spherical crown liner plate and damping slide plate, damping slide plate and sphere slide plate are attached to respectively spherical crown liner plate upper and lower surface; Described guide strip and shear studs are quadruplet, and guide strip is fixed on front, rear, left and right four ends of upper bracket plate through shear studs.
2. damper ball fixed bearing according to claim 1, its feature in, described sphere slide plate, damping slide plate and yielding rubber plate form combined shock absorption structure.
3. damper ball fixed bearing according to claim 1, its feature in, described yielding rubber plate is made by natural rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305917.8U CN204001206U (en) | 2014-06-10 | 2014-06-10 | Damper ball fixed bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305917.8U CN204001206U (en) | 2014-06-10 | 2014-06-10 | Damper ball fixed bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204001206U true CN204001206U (en) | 2014-12-10 |
Family
ID=52041229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420305917.8U Expired - Fee Related CN204001206U (en) | 2014-06-10 | 2014-06-10 | Damper ball fixed bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204001206U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088222A (en) * | 2014-06-10 | 2014-10-08 | 成都新筑展博环保科技有限公司 | Damping and shock insulating spherical fixing support |
| CN111039078A (en) * | 2019-12-30 | 2020-04-21 | 四川恒创特种纤维有限公司 | Shock-absorbing mechanism for bobbin winder |
-
2014
- 2014-06-10 CN CN201420305917.8U patent/CN204001206U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088222A (en) * | 2014-06-10 | 2014-10-08 | 成都新筑展博环保科技有限公司 | Damping and shock insulating spherical fixing support |
| CN111039078A (en) * | 2019-12-30 | 2020-04-21 | 四川恒创特种纤维有限公司 | Shock-absorbing mechanism for bobbin winder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20170610 |