CN203049447U - Fast-locking type friction pendulum double-curve shock absorbing and isolating supporting base - Google Patents
Fast-locking type friction pendulum double-curve shock absorbing and isolating supporting base Download PDFInfo
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- CN203049447U CN203049447U CN 201320045406 CN201320045406U CN203049447U CN 203049447 U CN203049447 U CN 203049447U CN 201320045406 CN201320045406 CN 201320045406 CN 201320045406 U CN201320045406 U CN 201320045406U CN 203049447 U CN203049447 U CN 203049447U
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- base plate
- friction pendulum
- seat board
- friction
- sphere
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Abstract
The utility model belongs to supports, and particularly discloses a fast-locking type friction pendulum double-curve shock absorbing and isolating supporting base. The supporting base comprises an upper base plate, a friction pendulum, a middle base plate and a lower base plate, wherein the upper base plate, the friction pendulum, the middle base plate and the lower base plate are sequentially distributed from top to bottom. The upper plate are in flexible match with the friction pendulum through the sphere of a convex sphere friction pair, the friction pendulum is in flexible match with the middle base plate through the sphere of a concave sphere friction pair, the middle base plate is in horizontal sliding match with the lower base plate through a plane friction pair, and a limit ring, matched with the outer edge of the middle base plate, of an inner ring is fixed on the upper base plate through a scissor bolt. A friction pendulum core is used in the friction pendulum, and the upper face and the lower face of the friction pendulum core are spheres. A fast-locking device is fixed on the lower base plate, and working ends on two sides of the fast-locking device are connected with the middle base plate through a connecting component. The supporting base solves the problems that girders are prone to fall and service life of a bridge is short in the prior art, and has the advantages of being good in bridge stability and long in service life, and having functions of absorbing and isolating shock during strong shock.
Description
Technical field
The utility model belongs to bearing, refers to a kind of speed locking-type friction pendulum hyperboloid vibration absorption and isolation support especially.
Background technology
Existing common spherical bearing, pot bearing can satisfy the normal operation of bridge in use.But effect is bad when earthquake is arrived, and particularly when continuous beam used, the whole most of horizontal earthquake energy of striding bridge of fixed bearing transmission carried very big horizontal force, is difficult to pass through designing and calculating.Freely movable bearing is because friction factor is less, and the Its ultimate bearing capacity of activity direction is also very little, and the relative displacement that beam and pier are produced is bigger, easily causes the beam phenomenon.
Though high-speed locking-type neoprene bearing and lead core rubber support have the shock insulation function of subtracting, but because initial ratio of rigidity is less, bridge easily produces and rocks when normal the use, and rubber is easily aging, and the life-span is low, because the characteristic of rubber itself, when bearing capacity is big, the corresponding increase of the volume of required bearing causes the corner difficulty, and usability and the economy of bearing are relatively poor.
Existing hyperboloid bearing possesses the shock insulation function of subtracting, but when positive normal temperature variable displacement, the beam body constantly raises or reduces, and makes the beam body be delivered to the equivalent stress point of pier and constantly changed by force direction, thereby shortened the application life of bridge.
Summary of the invention
The purpose of this utility model does not make the beam body raise or reduce when being to provide a kind of positive normal temperature variable displacement, the performance synchronously of each bearing subtracts the speed locking-type friction pendulum hyperboloid vibration absorption and isolation support of function of shock insulation during earthquake.
Overall technical architecture of the present utility model is:
Speed locking-type friction pendulum hyperboloid vibration absorption and isolation support, comprise the upper base plate, friction pendulum, middle seat board, the following seat board that distribute successively from top to bottom, wherein upper base plate and friction pendulum are by protruding active cooperation of sphere friction pair sphere, friction pendulum and middle seat board are by active cooperation of concave spherical surface friction pair sphere, middle seat board cooperates by the secondary horizontal slip of planar friction with following seat board, and the adaptive spacing ring of interior ring and middle seat board outward flange is fixed by shear studs and upper base plate; Friction pendulum selects for use upper and lower faces to be the friction pendulum core of sphere, and the speed lock is fixed on down on the seat board, and the working end of its both sides is connected with middle seat board by connecting elements.
The speed lock is commercially available existing product, belongs to common component in bridge engineering, and its agent structure is to establish the hydraulic cylinder that piston and piston two ends are working end (cylinder bar) in one.
Concrete technical construction of the present utility model also has:
For ease of realizing the assembling of speed lock and following seat board, reach the working end of speed lock and the purpose of following seat board interlock, connecting elements can be selected multiple prior art constructions such as comprising connecting rod, shift fork for use, does not all break away from technical spirit of the present utility model.Wherein optimized technical scheme is, connecting elements is selected shift fork for use.
Firm for the action that realizes down seat board connection stable and mechanism, optimized technical scheme is that the speed lock is fixed on down the seat board both sides axisymmetricly by limited block.Can it is evident that the speed lock can also fix by other fixed form and following seat board, all not break away from essence of the present utility model.
For playing the spacing fixation of spacing ring centering seat board, optimized technical scheme is that the interior ring of spacing ring and the outward flange of middle seat board are fitted.
The speed lock can it is evident that for the locking of seat board down the latching force of speed lock is greater than the shear strength of shear studs under the macroseism in order to be implemented in.
Operating principle of the present utility model is as follows:
When bridge was in normal condition, the function of the utility model and common bearing was just the same.The speed lock is fixed on down on the seat board by limited block, and be connected with middle seat board by shift fork, beam and pier relative velocity are hour, the speed latching force of speed lock is very little, when speed increases, the speed latching force of speed lock also increases sharply, and the latching force of speed lock is greater than the shear strength of support shearing force bolt.When small earthquakes, strong wind come interim and brake, because the effect of speed lock, bearing will lock, can regard each bearing as and be rigidly connected, in the bearing elastic range, horizontal force will be distributed on each bridge pier uniformly, makes all bridge piers stressed common antidetonation simultaneously.Shear studs is cut off during macroseism, and spacing ring comes off, and each bearing is realized subtracting shock insulation by the friction pendulum core, and full-bridge enters and subtracts the shock insulation state.The protection bridge is not destroyed.The warm variable displacement of bearing realizes that by the planar friction pair following seat board is a plane, the beam body is not raised under the situation of positive normal temperature variable displacement or is reduced.
The obtained technological progress of the utility model is:
1, owing to adopt by the secondary middle seat board that cooperates of planar friction, base plate structure down, cooperate the bi-curved friction pendulum core effect that is, the utility model can efficiently solve the beam body that freely movable bearing in use exists and raise phenomenon;
2, the utility model is not elevated at positive normal temperature variable displacement state underbeam body, when guaranteeing girder stability, has prolonged the application life of bridge greatly.
3, the utility model full-bridge when small earthquakes, strong wind come interim and brake enters the antidetonation state simultaneously, and the next interim full-bridge of macroseism enters and subtracts the shock insulation state.
Description of drawings
Accompanying drawing of the present utility model has:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the upward view of Fig. 1.
Reference numeral in the accompanying drawing is as follows;
1, upper base plate; 2, protruding sphere friction pair; 3, friction pendulum core; 4, spacing ring; 5, shear studs; 6, concave spherical surface friction pair; 7, middle seat board; 8, planar friction pair; 9, following seat board; 10, limited block; 11, shift fork; 12, speed lock.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described; but conduct is not to restriction of the present utility model; protection domain of the present utility model is as the criterion with the content of claim record; any equivalence techniques means of making according to manual are replaced, and all do not break away from protection domain of the present utility model.
The overall technology structure of present embodiment as shown, the wherein upper base plate 1 that distributes successively from top to bottom, friction pendulum, middle seat board 7, seat board 9 down, wherein upper base plate 1 and friction pendulum are by protruding active cooperation of sphere friction pair 2 spheres, friction pendulum and middle seat board 7 are by active cooperation of concave spherical surface friction pair 6 spheres, middle seat board 7 cooperates by secondary 8 horizontal slips of planar friction with following seat board 9, and the adaptive spacing ring 4 of interior ring and middle seat board 7 outward flanges is fixed by shear studs 5 and upper base plate 1; Friction pendulum selects for use upper and lower faces to be the friction pendulum core 3 of sphere, and speed lock 12 is fixed on down on the seat board 9, and the working end of its both sides is connected with middle seat board 7 by connecting elements.
Connecting elements is selected shift fork 11 for use.
Claims (5)
1. speed locking-type friction pendulum hyperboloid vibration absorption and isolation support, comprise the upper base plate (1), friction pendulum, middle seat board (7), the following seat board (9) that distribute successively from top to bottom, wherein upper base plate (1) and friction pendulum are by protruding sphere friction pair (2) the active cooperation of sphere, friction pendulum and middle seat board (7) are by concave spherical surface friction pair (6) the active cooperation of sphere, middle seat board (7) cooperates by planar friction pair (8) horizontal slip with following seat board (9), and the adaptive spacing ring (4) of interior ring and middle seat board (7) outward flange is fixed by shear studs (5) and upper base plate (1); It is characterized in that described friction pendulum selects for use upper and lower faces to be the friction pendulum core (3) of sphere, speed lock (12) is fixed on down on the seat board (9), and the working end of its both sides is connected with middle seat board (7) by connecting elements.
2. speed locking-type friction pendulum hyperboloid vibration absorption and isolation support according to claim 1 is characterized in that described connecting elements selects shift fork (11) for use.
3. speed locking-type friction pendulum hyperboloid vibration absorption and isolation support according to claim 1 and 2 is characterized in that speed lock (12) is fixed on down seat board (9) both sides axisymmetricly by limited block (10).
4. speed locking-type friction pendulum hyperboloid vibration absorption and isolation support according to claim 1 is characterized in that the outward flange applying of interior ring and the middle seat board (7) of described spacing ring (4).
5. speed locking-type friction pendulum hyperboloid vibration absorption and isolation support according to claim 1 is characterized in that the latching force of described speed lock (12) is greater than the shear strength of shear studs (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320045406 CN203049447U (en) | 2013-01-28 | 2013-01-28 | Fast-locking type friction pendulum double-curve shock absorbing and isolating supporting base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320045406 CN203049447U (en) | 2013-01-28 | 2013-01-28 | Fast-locking type friction pendulum double-curve shock absorbing and isolating supporting base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203049447U true CN203049447U (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320045406 Expired - Fee Related CN203049447U (en) | 2013-01-28 | 2013-01-28 | Fast-locking type friction pendulum double-curve shock absorbing and isolating supporting base |
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| CN (1) | CN203049447U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824180A (en) * | 2018-09-03 | 2018-11-16 | 成都市新筑路桥机械股份有限公司 | A kind of speed lockup's friction pendulum shock mount |
| CN109235248A (en) * | 2018-11-14 | 2019-01-18 | 中铁二院工程集团有限责任公司 | A kind of spherical steel support of energy consumption |
| CN110485280A (en) * | 2019-08-07 | 2019-11-22 | 中铁二院昆明勘察设计研究院有限责任公司 | A kind of hyperboloid spheroidal bearer of shock absorption and insulation with displacement lock function |
| CN112195765A (en) * | 2020-10-20 | 2021-01-08 | 成都市新筑路桥机械股份有限公司 | Mechanical locking friction pendulum vibration reduction and isolation support |
| CN112878168A (en) * | 2021-01-08 | 2021-06-01 | 中铁大桥勘测设计院集团有限公司 | Variable-friction-resistance long-span continuous beam system |
-
2013
- 2013-01-28 CN CN 201320045406 patent/CN203049447U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824180A (en) * | 2018-09-03 | 2018-11-16 | 成都市新筑路桥机械股份有限公司 | A kind of speed lockup's friction pendulum shock mount |
| CN108824180B (en) * | 2018-09-03 | 2023-07-07 | 成都市新筑交通科技有限公司 | Speed locking friction pendulum damping support |
| CN109235248A (en) * | 2018-11-14 | 2019-01-18 | 中铁二院工程集团有限责任公司 | A kind of spherical steel support of energy consumption |
| CN109235248B (en) * | 2018-11-14 | 2023-09-12 | 中铁二院工程集团有限责任公司 | Spherical steel support of power consumption |
| CN110485280A (en) * | 2019-08-07 | 2019-11-22 | 中铁二院昆明勘察设计研究院有限责任公司 | A kind of hyperboloid spheroidal bearer of shock absorption and insulation with displacement lock function |
| CN110485280B (en) * | 2019-08-07 | 2024-02-06 | 中铁二院昆明勘察设计研究院有限责任公司 | Hyperboloid ball-type shock-absorbing and isolating support with displacement locking function |
| CN112195765A (en) * | 2020-10-20 | 2021-01-08 | 成都市新筑路桥机械股份有限公司 | Mechanical locking friction pendulum vibration reduction and isolation support |
| CN112878168A (en) * | 2021-01-08 | 2021-06-01 | 中铁大桥勘测设计院集团有限公司 | Variable-friction-resistance long-span continuous beam system |
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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 |
Granted publication date: 20130710 Termination date: 20150128 |
|
| EXPY | Termination of patent right or utility model |