CN201738233U - Double-friction pendulum support - Google Patents
Double-friction pendulum support Download PDFInfo
- Publication number
- CN201738233U CN201738233U CN2010202619066U CN201020261906U CN201738233U CN 201738233 U CN201738233 U CN 201738233U CN 2010202619066 U CN2010202619066 U CN 2010202619066U CN 201020261906 U CN201020261906 U CN 201020261906U CN 201738233 U CN201738233 U CN 201738233U
- Authority
- CN
- China
- Prior art keywords
- pendulum
- sliding part
- bearing
- double
- tumbler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The utility model discloses a double-friction pendulum support, which comprises an upper pendulum (1), a lower pendulum (2), a turned part (3) and a sliding part (4), wherein the upper pendulum (1) and the turned part (3) are in cambered fit and can freely slide relative to each other, the turned part (3) and the sliding part (4) are in spherical fit and can freely rotate relative to each other, and the sliding part (4) and the lower pendulum (2) are in cambered fit and can freely slide relative to each other. Based on the pendulum principle, the double-friction pendulum support make a beam body move horizontally or rotate relative to the floor via seismic forces, so as to buffer and diminish the seismic forces and reach better aseismic effect. Moreover, the double-friction pendulum support has a simple structure and excellent shock resistance, and is low in cost and long in service lifetime.
Description
Technical field
The utility model belongs to the bridge technology field, relates to a kind of two friction rocker bearing concretely.
Background technology
China is in circum-Pacific belt and the Asia-Europe area that influences with the multiple district of two big violent earthquakes, is the multiple state of an earthquake.How antidetonation and damping are to carry out the problem that the bridge construction design must be paid much attention to.China is by the continuous foreign study experience of using for reference, and the characteristics and the designing requirement of combination this country, has researched and developed the various earthquake isolating equipments that subtract.The bridge construction of domestic existing application at present subtracts earthquake isolating equipment and mainly contains lead core rubber support, high-damping rubber bearing etc., has also occurred a kind of band damper bearing that damper and bearing are combined in recent years both at home and abroad.But present support style has following deficiency:
(1) lead core rubber support, high-damping rubber bearing since lateral stiffness a little less than, be difficult to satisfy the requirement of railroad bridge power performance aspect, simultaneously since the quality of rubber be difficult for guaranteeing that the durability of bearing can't reach expected result;
(2) band damper bearing has damping characteristic preferably, but when bearing vertical bearing capacity greatly the time, and seat structure complexity, floor space are huge, make that the integral bridge cost is higher; Simultaneously, monolithic subtracts earthquake isolating equipment and is mainly used in fixed bearing, causes the suffered seismic forces of bridge anchor block excessive, and the inefficacy of fixed bearing horizontal restraint means that just damage has taken place bearing, and still there are a lot of practical problems in the reparation after the shake.
(3) sliding friction energy dissipating support existing problems: the cold bonding knot or the condensation of rubbing surface are solid, cause friction factor not guarantee; Friction energy-dissipating is not obvious; Can't automatically reset after the earthquake.
The utility model content
The purpose of this utility model has provided a kind of simple in structure, shock resistance good, cost is low, the life-span is long two friction rocker bearings.
The technical solution of the utility model is as follows:
A kind of two friction rocker bearing, this bearing comprises pendulum, the bottom, tumbler and sliding part, the described pendulum of going up cooperates with described tumbler formation cambered surface, and can be free to slide relatively between the two, forming sphere between described tumbler and the described sliding part cooperates, and can rotate relatively freely between the two, form cambered surface between described sliding part and the described bottom and cooperate, and can be free to slide relatively between the two.
Adopt said structure, when earthquake takes place when, last pendulum relatively rotates part horizontal slip, the relative bottom horizontal slip of sliding part and the relative sliding part of tumbler relatively rotates, can play the momentary action power of being brought in multi-faceted buffering earthquake like this, beam cognition realizes horizontal movement under the effect of earthquake simultaneously, can produce certain vertical displacement simultaneously.After the earthquake, bearing can be returned to the lowest point of bearing under the effect of gravity.Even very little permanent set is arranged, this part permanent set also has the trend of homing, and can progressively get back to the minimum point of bearing.
Described going up between pendulum and the described tumbler is provided with the tetrafluoro plate that the face shape of being in contact with it adapts between described tumbler and the described sliding part and between the described sliding part and the described bottom.
Reach the effect of different damping ratio by the friction factor of adjusting rubbing surface.
Realize to transmit slide and when earthquake along with the variation of displacement, consume the energy that produces because of earthquake, reach the purpose of damping.
Beneficial effect: the utility model adopts the principle of pendulum, make can be with the active force of the earthquake relative ground of beam body produce certain level or rotation displacement to reach buffering and to consume the purpose of geological process power, thereby play good anti seismic efficiency, this is simple in structure simultaneously, shock resistance good, cost is low, the life-span is long.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 structural representation of the present utility model;
Fig. 2 is Fig. 1 sectional view;
Swing state figure when Fig. 3 is earthquake.
The specific embodiment
As shown in Figure 1, 2, 3: a kind of two friction rocker bearings, this bearing comprises pendulum 1, the bottom 2, tumbler 3 and sliding part 4, the described pendulum 1 of going up cooperates with described tumbler 3 formation cambered surfaces, and can be free to slide relatively between the two, forming sphere between described tumbler 3 and the described sliding part 4 cooperates, and can rotate relatively freely between the two, form cambered surface between described sliding part 4 and the described bottom 2 and cooperate, and can be free to slide relatively between the two.
Described going up between pendulum 1 and the described tumbler 3 is provided with the face shape of being in contact with it and wants the tetrafluoro plate 5 that adapts between described tumbler 3 and the described sliding part 4 and between the described sliding part 4 and the described bottom 2.
Each component function:
(1) goes up the bottom.The last bottom adopts identical structure, can realize double horizontal movement when earthquake, and very big design displacement can be arranged.
(2) tumbler.Be mainly used in the corner of realizing pendulum-type friction bearing.Compare with the bearing of common single pendulum face, this bearing can obtain bigger corner relatively, for design is provided convenience.Simultaneously, the upper surface of tumbler can be laid out slip last.
(3) sliding part.Be mainly used in the horizontal movement that realizes pendulum-type friction bearing, upper surface and tumbler are realized the corner that bearing is required jointly simultaneously.
(4) tetrafluoro plate.Realize to transmit slide and when earthquake along with the variation of displacement, consume the energy that produces because of earthquake, reach the purpose of damping.
This bearing have a following advantage:
(1) friction energy-dissipating is obvious. This bearing adopts special rubbing surface, and when earthquake took place, the energy that can as early as possible earthquake be produced consumed with the form of heat energy.
(2) reset function is good. During earthquake, the building on the bearing, also can be set back even a small amount of residual deformation is arranged as early as possible automatically by automatically reset trend.
(3) good endurance. This bearing does not adopt rubber components, does not have the ageing of rubber problem, and service time is long.
(4) have the fire prevention abrasionproof function. All parts of this bearing are metal parts, and when running into fire, bearing can be not destroyed, guarantee to build can not topple over.
(5) cycle is fixed. What this bearing adopted is pendulum principle, and the curvature of the rubbing surface that the cycle adopts during as for design is relevant, and with the size of superstructure, form etc. are all irrelevant. Cycle can not change.
(6) applied range. This bearing is mainly used in comparing the bridge bearing in the damping of building, and what its range of application relatively will be big is many.
(7) has the incomparable advantage in common single pendulum plane. Because the double pendulum bearing adopts the double pendulum plane. Have bigger displacement and corner than single pendulum bearing under the equal conditions. And volume is little, good economy performance.
Claims (2)
1. two friction rocker bearing, it is characterized in that: this bearing comprises pendulum (1), the bottom (2), tumbler (3) and sliding part (4), the described pendulum (1) of going up cooperates with described tumbler (3) formation cambered surface, and can be free to slide relatively between the two, forming sphere between described tumbler (3) and the described sliding part (4) cooperates, and can rotate relatively freely between the two, form cambered surface between described sliding part (4) and the described bottom (2) and cooperate, and can be free to slide relatively between the two.
2. a kind of two friction rocker bearings according to claim 1, it is characterized in that: described going up between pendulum (1) and the described tumbler (3) is provided with the tetrafluoro plate (5) that the face shape of being in contact with it adapts between described tumbler (3) and the described sliding part (4) and between the described sliding part (4) and the described bottom (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202619066U CN201738233U (en) | 2010-07-16 | 2010-07-16 | Double-friction pendulum support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202619066U CN201738233U (en) | 2010-07-16 | 2010-07-16 | Double-friction pendulum support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201738233U true CN201738233U (en) | 2011-02-09 |
Family
ID=43553511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202619066U Expired - Lifetime CN201738233U (en) | 2010-07-16 | 2010-07-16 | Double-friction pendulum support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201738233U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522375A (en) * | 2016-10-26 | 2017-03-22 | 清华大学 | Frictional pendulum sliding support |
| CN106759929A (en) * | 2017-03-10 | 2017-05-31 | 清华大学 | Friction slipper |
| CN112095456A (en) * | 2020-09-28 | 2020-12-18 | 河南省浸江建筑科技有限公司 | Ellipsoidal anisotropic friction simple pendulum support for bridge or building |
-
2010
- 2010-07-16 CN CN2010202619066U patent/CN201738233U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522375A (en) * | 2016-10-26 | 2017-03-22 | 清华大学 | Frictional pendulum sliding support |
| CN106522375B (en) * | 2016-10-26 | 2019-03-01 | 清华大学 | Friction pendulum slip support abutment |
| CN106759929A (en) * | 2017-03-10 | 2017-05-31 | 清华大学 | Friction slipper |
| CN112095456A (en) * | 2020-09-28 | 2020-12-18 | 河南省浸江建筑科技有限公司 | Ellipsoidal anisotropic friction simple pendulum support for bridge or building |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201891073U (en) | Friction pendulum locking support seat | |
| CN202850206U (en) | Friction pendulum support | |
| CN202298447U (en) | Micro particle damping support | |
| CN105755953B (en) | Triple friction pendulum supports | |
| CN201843071U (en) | Pull rope and stop block combined limiting anti-seismic supporting seat | |
| CN103469919B (en) | A kind of bidirectional rolling pendulum shock isolating pedestal | |
| CN202227260U (en) | Self-resetting shock attenuation bearing with external elastic resetting device | |
| CN101748686A (en) | Non-linear damping radiation vibration absorption and isolation support | |
| CN203440746U (en) | Friction swing type isolation bearing with pulling resistance and torsion inhibiting functions | |
| CN201730196U (en) | Ball disc spring vibration isolation device | |
| CN105201094B (en) | A kind of X-type anisotropy friction double pendulum vibration absorption and isolation support | |
| CN202658518U (en) | Friction double-curved-surface support | |
| CN101701478B (en) | Simple-pendulum compound three-dimensional shock isolation support | |
| CN205152778U (en) | Cross quadrature hyperboloid friction pendulum subtracts isolation bearing | |
| CN201738233U (en) | Double-friction pendulum support | |
| CN102758402A (en) | Pulling-resistant frictional oscillating support for seismic reduction and isolation | |
| CN204000585U (en) | A kind of friction pendulum damping supporting seat | |
| CN104032847A (en) | Composite earthquake isolating support seat based on displacement control | |
| CN202298454U (en) | Auto-resetting seism reduction and insulation pot type rubber support seat | |
| CN204825626U (en) | Novel corner shock insulation rubber support by a wide margin | |
| CN202247674U (en) | Pendulum type shock isolation support with double sliding curves | |
| CN202047352U (en) | Shock-absorbing elastic-plastic damper for bridge | |
| CN203514560U (en) | Two-way-rolling swing shock insulation supporting base | |
| CN101892624B (en) | Bridge shock absorption and isolation structure | |
| CN205046694U (en) | X type anisotropic friction double pendulum subtracts isolation bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |
|
| CX01 | Expiry of patent term |