CN205024587U - Speed locking type becomes camber friction pendulum formula support - Google Patents
Speed locking type becomes camber friction pendulum formula support Download PDFInfo
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- CN205024587U CN205024587U CN201520638838.3U CN201520638838U CN205024587U CN 205024587 U CN205024587 U CN 205024587U CN 201520638838 U CN201520638838 U CN 201520638838U CN 205024587 U CN205024587 U CN 205024587U
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Abstract
The utility model provides a speed locking type becomes camber friction pendulum formula support, include by the last upper bracket board that sets gradually under to, well welt, damping ball pendulum and shock attenuation dimple, and the retaining ring the support both sides still are provided with about indulging two the speed locks of bridge to the vertical section symmetry to the direction along indulging the bridge, in the speed lock the same wherein one end respectively with upper bracket board fixed connection, the same other end respectively with damping ball puts fixed connection. The utility model discloses the antidetonation system of bridge under different level seismic action such as E1, E2 can rationally be controlled in the creation, improves the bridge anti -seismic performance conscientiously, practices thrift engineering cost.
Description
Technical field
The invention belongs to bridge security technical field, is specifically related to a kind of speed lockup's type variable curvature friction pendulum support.
Background technology
Bearing is the important feature device of the horizontal force action that bridge transmits in pressure-bearing and transfer beams, when earthquake occurs, also needs the destructive power can bearing earthquake, plays the effect of damping antidetonation.Geological process generally distinguishes corresponding two benches, i.e. the E2 geological process of corresponding flexible E1 geological process and corresponding ductility.Therefore it is also proposed new Seismic Design Requirements to the seismic design of bearing, E1 geological process needs to adopt elastic anti-seismic design system, and E2 geological process needs employing two kinds of Bridge Earthquake Resistance Design systems, i.e. ductility system and subtract vibration-isolating system.
In prior art mainly there is following problem in the seismic design system of all kinds of bearing:
(1) existing conventional ball type bearing, pot bearing can meet the normal use of bridge, but under geological process, and by the vertical equity seismic forces arranging fixed bearing pier and bear the overwhelming majority, the pier arranging sliding support only bears frictional force.So just very high requirement is proposed to the bridge pier and infrastructure that arrange fixed bearing, cause the situation of " pier is solely large ", rationally uneconomical.
(2) domestic conventional rubber-type vibration absorption and isolation support is as lead core rubber support and high damping bearing, shock insulation function is subtracted although have, but because bearing yield force is less, larger in earthquake intensity, and the region that site condition is poor, at E1 geological process stage bearing, surrender effect has occurred, under cannot realizing E1 geological process, elastic anti-seismic designs; Rubber product is easily aging in addition, and the life-span is low, and practicality and the economy of its bearing are poor.
(3) domestic conventional friction pendulum vibration absorption and isolation support, under normal temperature and vehicle impact effect, beam body constantly raises or reduces, and makes beam body be delivered to the stress point of pier and Impact direction constantly changes, thus shortens the application life of bridge.When an earthquake occurs, except fixed bearing overcomes initial force from " 0 " point except swing, " the pendulum position " of all the other sliding supports is random, uncertain, and namely each pier position bearing can not synchronous working.
Summary of the invention
The invention is for solving the problems of the prior art, provide a kind of speed lockup's type variable curvature friction pendulum support, can the antidetonation system of conservative control bridge under the different level geological process such as E1, E2, conscientiously improve anti-seismic performance of beam bridge, save construction costs.
A kind of speed lockup's type variable curvature friction pendulum support that the invention provides, comprises the upper bracket plate set gradually from top to bottom, middle liner plate, damping spherical pendulum and damping dimple, wherein,
It is protruding that described upper bracket plate bottom surface is provided with a circle, and the upper bracket plate bottom surface of described lobed interior is plane;
The end face of described middle liner plate is plane, is positioned at described upper bracket plate projection; The bottom surface of described middle liner plate is convex spherical;
It is rectangular-shaped that described shock-absorbing ball puts the first half, and the latter half is cylindric, and end face is the concave spherical surface matched with the bottom surface of described middle liner plate, and bottom surface is convex spherical; The tip portion that described shock-absorbing ball puts the first half is positioned at the projection of described upper bracket plate; Described damping dimple end face is concave spherical surface, and the part that described damping dimple end face and described damping spherical pendulum bottom surface directly or indirectly contact mutually is mated mutually;
Described bearing also comprises the back-up ring be sheathed on outside described damping spherical pendulum, and described back-up ring is fixed on described damping dimple by set bolt;
Also be provided with about two speed lockup devices from vertical bridge to vertical section symmetry along vertical bridge to direction in described bearing both sides, wherein one end identical in described speed lockup's device is fixedly connected with described upper bracket plate respectively, and the identical other end is fixedly connected with described damping spherical pendulum respectively.
Further, the length of side that described shock-absorbing ball puts the first half cuboid is equal to or slightly less than the distance of inwall in corresponding length direction of the projection of described upper bracket plate.
Further, the plane tetrafluoro slide plate contacted with the two respectively is also provided with between the bottom surface of described upper bracket plate and the end face of middle liner plate; The first surface tetrafluoro slide plate contacted with the two respectively is also provided with between the bottom surface of described middle liner plate and the end face of damping spherical pendulum; The the second curved surface tetrafluoro slide plate contacted with the two respectively is also provided with between the bottom surface of described damping spherical pendulum and the end face of damping dimple.
Further, on the bottom surface of described damping spherical pendulum and/or the end face of damping dimple, the curvature of each point changes with the difference of position, and intensity of variation and mode can design according to different demands and application conditions.
Further, the two ends of described speed lockup's device have mutual vertically disposed oscillating bearing.
Further, described speed lockup's device is connected with described upper bracket plate and damping spherical pendulum respectively by the ear seat of two kinds of different structures; Wherein, pivot pin can be adopted to carry out by an oscillating bearing of a pair earhole and speed lockup's device for the ear seat that is connected with described upper bracket plate hinged; It is hinged that two oscillating bearings that can be positioned at same one end respectively with two speed lockup's devices by two pairs of earholes for the ear seat that is connected with described damping spherical pendulum adopt pivot pin to carry out simultaneously.Described speed lockup's device adopts this kind of fixed form can play antidetonation shock attenuation effect better under the different level geological process such as E1, E2.
The invention speed lockup type variable curvature friction pendulum support, normally use with the control action under different level geological process as follows at bridge: (1) is under bridge normal operating condition, the temperature difference and automobile braking force cause pier beam relative velocity slowly, can not the work of velocity of initiation lock, the normal instructions for use of bridge can be met; (2) under E1 geological process, speed faster will be produced between pier beam, impel speed lockup's device by upper bracket plate and damping spherical pendulum Snap lock, and set bolt does not destroy, make each pier position sliding support become fixed bearing temporarily, combine anti-pushing away together with former fixed bearing, namely realize the theory of E1 stage elastic anti-seismic design; (2) under E2 geological process, speed lockup's device continues to play a role, and after locking bearing, the set bolt of friction pendulum support destroys, and each pier position of bridge enters simultaneously and subtracts shock insulation duty, realizes each pier associated shock-absorbing.
The beneficial effect of the invention is: (1) can realize the aseismatic design concept of bridge under the different level geological process of E1, E2, E1 geological process needs to adopt elastic anti-seismic design system, anti-pushing away combined by each pier, common antidetonation, E2 geological process needs adopt ductility system and subtract vibration-isolating system, each pier associated shock-absorbing.(2) variable curvature friction pendulum support effectively can avoid the generation of Bridge resonance phenomenon, has again better hysteretic energy ability, can be applicable to seismic stimulation and structural condition widely.(3) construction costs is saved; instruct the instructions for use in friction pendulum support and the design of similar seismic isolation device, construction, maintenance, research etc. of China's municipal road, rail traffic bridge; reduce the secondary disaster that bridge damage causes, better protect people life property safety.
Accompanying drawing explanation
Fig. 1 is the structural representation of the invention in direction across bridge direction;
Fig. 2 is that the structural representation in direction is overlooked in the invention;
Fig. 3 is the structural representation of the invention medium velocity lock.
Wherein, 1-upper bracket plate; Liner plate in 2-; 3-damping spherical pendulum; 4-damping dimple; 5-is protruding; 6-back-up ring; 7-set bolt; 8-speed lockup device; 9-plane tetrafluoro slide plate; 10-first surface tetrafluoro slide plate; 11-second curved surface tetrafluoro slide plate; 12-oscillating bearing A holds; 13-oscillating bearing B holds; 14-ear seat A; 15-ear seat B.
Detailed description of the invention
Below by being further described the invention by reference to the accompanying drawings.
A kind of embodiment of the invention as shown in Figure 1-2, comprises the upper bracket plate 1, plane tetrafluoro slide plate 9, middle liner plate 2, first surface tetrafluoro slide plate 10, damping spherical pendulum 3, second curved surface tetrafluoro slide plate 11 and the damping dimple 4 that set gradually from top to bottom.Wherein, described upper bracket plate 1 bottom surface is provided with a circle projection 5, and the upper bracket plate bottom surface of described protruding 5 inside is plane.The end face of described middle liner plate 2 is plane, is positioned at described upper bracket plate projection 5; The bottom surface of described middle liner plate 2 is convex spherical.Described damping spherical pendulum 3 the first half is rectangular-shaped, the latter half is cylindric, the length of side of described damping spherical pendulum 3 the first half cuboid is equal to or slightly less than the distance of inwall in corresponding length direction of the projection 5 of described upper bracket plate 1, end face is the concave spherical surface matched with the bottom surface of described middle liner plate 2 and first surface tetrafluoro slide plate 10, and bottom surface is convex spherical and matches with the second curved surface tetrafluoro slide plate 11; The tip portion of described damping spherical pendulum 3 the first half is positioned at the projection 5 of described upper bracket plate 1 just.Described damping dimple 4 end face is concave spherical surface, on described damping dimple 4 end face, the curvature of each point changes with the difference of position, and described damping dimple 4 end face mates mutually with the part of the mutual mediate contact of the second curved surface tetrafluoro slide plate 11 described in the underrun of described damping spherical pendulum 3.Described bearing also comprises the back-up ring 6 be sheathed on outside described damping spherical pendulum 3, and described back-up ring 6 is fixed on described damping dimple 4 by set bolt 7.
Also be provided with about two speed lockup devices 8 from vertical bridge to vertical section symmetry along vertical bridge to direction in described bearing both sides, the two ends of described speed lockup's device 8 have mutual vertically disposed oscillating bearing A and hold 12 and oscillating bearing B end 13.The oscillating bearing A end 12 of described two speed lockup's devices 8 is fixed on the bottom surface of described upper bracket plate 1 respectively by two ear seat A14, the oscillating bearing B of described two speed lockup's devices 8 holds 13 to be directly or indirectly fixedly connected with described damping spherical pendulum 3 by an ear seat B15.Wherein, described ear seat A14 is by having a pair earhole, and holding 12 by this earhole and oscillating bearing A, to adopt pivot pin to carry out hinged; Described ear seat B15 has two pairs of earholes, and described two pairs of earholes can hold 13 respectively, and to adopt pivot pin to carry out hinged simultaneously with two oscillating bearing B of two speed lockup's devices 8.
The foregoing is only the preferred embodiment of the invention; not in order to limit the invention; within all spirit in the invention and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in the invention.
Claims (6)
1. speed lockup's type variable curvature friction pendulum support, comprises the upper bracket plate set gradually from top to bottom, middle liner plate, damping spherical pendulum and damping dimple, wherein,
It is protruding that described upper bracket plate bottom surface is provided with a circle, and the upper bracket plate bottom surface of described lobed interior is plane;
The end face of described middle liner plate is plane, is positioned at described upper bracket plate projection; The bottom surface of described middle liner plate is convex spherical;
It is rectangular-shaped that described shock-absorbing ball puts the first half, and the latter half is cylindric, and end face is the concave spherical surface matched with the bottom surface of described middle liner plate, and bottom surface is convex spherical; The tip portion that described shock-absorbing ball puts the first half is positioned at the projection of described upper bracket plate;
Described damping dimple end face is concave spherical surface, and the part that described damping dimple end face and described damping spherical pendulum bottom surface directly or indirectly contact mutually is mated mutually;
Described bearing also comprises the back-up ring be sheathed on outside described damping spherical pendulum, and described back-up ring is fixed on described damping dimple by set bolt;
Also be provided with about two speed lockup devices from vertical bridge to vertical section symmetry along vertical bridge to direction in described bearing both sides, wherein one end identical in described speed lockup's device is fixedly connected with described upper bracket plate respectively, and the identical other end is fixedly connected with described damping spherical pendulum respectively.
2. a kind of speed lockup's type variable curvature friction pendulum support according to claim 1, is characterized in that, the length of side that described shock-absorbing ball puts the first half cuboid is equal to or slightly less than the distance of inwall in corresponding length direction of the projection of described upper bracket plate.
3. a kind of speed lockup's type variable curvature friction pendulum support according to claim 1, is characterized in that, be also provided with the plane tetrafluoro slide plate contacted with the two respectively between the bottom surface of described upper bracket plate and the end face of middle liner plate; The first surface tetrafluoro slide plate contacted with the two respectively is also provided with between the bottom surface of described middle liner plate and the end face of damping spherical pendulum; The the second curved surface tetrafluoro slide plate contacted with the two respectively is also provided with between the bottom surface of described damping spherical pendulum and the end face of damping dimple.
4. a kind of speed lockup's type variable curvature friction pendulum support according to claim 1, is characterized in that, on the bottom surface of described damping spherical pendulum and/or the end face of damping dimple, the curvature of each point changes with the difference of position.
5. a kind of speed lockup's type variable curvature friction pendulum support according to claim 1, it is characterized in that, the two ends of described speed lockup's device have mutual vertically disposed oscillating bearing.
6. a kind of speed lockup's type variable curvature friction pendulum support according to claim 5, it is characterized in that, described speed lockup's device is connected with described upper bracket plate and damping spherical pendulum respectively by the ear seat of two kinds of different structures; Wherein, pivot pin can be adopted to carry out by an oscillating bearing of a pair earhole and speed lockup's device for the ear seat that is connected with described upper bracket plate hinged; It is hinged that two oscillating bearings that can be positioned at same one end respectively with two speed lockup's devices by two pairs of earholes for the ear seat that is connected with described damping spherical pendulum adopt pivot pin to carry out simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520638838.3U CN205024587U (en) | 2015-08-21 | 2015-08-21 | Speed locking type becomes camber friction pendulum formula support |
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| CN201520638838.3U CN205024587U (en) | 2015-08-21 | 2015-08-21 | Speed locking type becomes camber friction pendulum formula support |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035244A (en) * | 2017-12-22 | 2018-05-15 | 株洲时代新材料科技股份有限公司 | A kind of friction pendulum support and bridge subtract shock isolation system |
| CN108713099A (en) * | 2016-02-24 | 2018-10-26 | Fm能源有限责任两合公司 | The wind facilities of flexible spherical pendulum bearing |
| CN110607735A (en) * | 2019-08-09 | 2019-12-24 | 成都市新筑路桥机械股份有限公司 | Four-line large-span railway bridge supporting system |
-
2015
- 2015-08-21 CN CN201520638838.3U patent/CN205024587U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108713099A (en) * | 2016-02-24 | 2018-10-26 | Fm能源有限责任两合公司 | The wind facilities of flexible spherical pendulum bearing |
| CN108713099B (en) * | 2016-02-24 | 2020-09-29 | Fm能源有限责任两合公司 | Wind power installation with elastic ball pendulum bearing |
| CN108035244A (en) * | 2017-12-22 | 2018-05-15 | 株洲时代新材料科技股份有限公司 | A kind of friction pendulum support and bridge subtract shock isolation system |
| CN110607735A (en) * | 2019-08-09 | 2019-12-24 | 成都市新筑路桥机械股份有限公司 | Four-line large-span railway bridge supporting system |
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Address after: 300051 No. 239, Yingkou Road, Heping District, Tianjin Patentee after: Tianjin municipal engineering design and Research Institute Co.,Ltd. Address before: 300051 No. 239, Yingkou Road, Heping District, Tianjin Patentee before: TIANJIN MUNICIPAL ENGINEERING DESIGN & Research Institute |