CN203270446U - Novel friction shock-reduction seismic-isolation supporting seat - Google Patents
Novel friction shock-reduction seismic-isolation supporting seat Download PDFInfo
- Publication number
- CN203270446U CN203270446U CN2013203181387U CN201320318138U CN203270446U CN 203270446 U CN203270446 U CN 203270446U CN 2013203181387 U CN2013203181387 U CN 2013203181387U CN 201320318138 U CN201320318138 U CN 201320318138U CN 203270446 U CN203270446 U CN 203270446U
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- middle sliding
- curved surface
- concave curved
- friction pair
- supporting plate
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Abstract
The utility model belongs to the technical field of bridge supporting seats and discloses a novel friction shock-reduction seismic-isolation supporting seat. The main technical characteristics are that: The novel friction shock-reduction seismic-isolation supporting seat comprises an upper supporting plate and a lower supporting plate. A dual-spherical turning block is arranged on a downwardly concave curved surface at the top of the lower supporting plate. A middle sliding block, of which the top is a flat surface and the bottom is an upwardly concave curved surface, is arranged between the dual-spherical turning block and the upper supporting plate. A lower spherical friction pair is arranged between the dual-spherical turning block and the downwardly concave curved surface. An upper spherical friction pair is arranged between the dual-spherical turning block and the upwardly concave curved surface. A transverse plane friction pair is arranged between the upper supporting plate and the middle sliding block. A spacing ring matched with the middle sliding block is arranged on the lower supporting plate. The upper supporting plate is provided with a lateral baffle plate. A vertical plane friction pair is arranged between the lateral baffle plate and the middle sliding block. The novel friction shock-reduction seismic-isolation supporting seat has following advantages: separation of temperature-induced displacement and earthquake-induced displacement is achieved; and secondary internal force in an internal structure caused by the elevation of a bridge beam body due to the temperature-induced displacement is avoided; therefore service lifetime is prolonged.
Description
Technical field
The utility model belongs to the bridge pad technical field, relates in particular to a kind of Novel friction pendulum vibration absorption and isolation support.
Background technology
In bridge construction, bearing is the vitals that connects bridge superstructure and substructure, at first must have enough bearing capacities to guarantee safe and reliable bearing vertical reaction and horizontal reacting force being passed to substructure; Simultaneously bearing should be as much as possible little to the constraint of bridge displacement and corner distortion, with the free-extension that adapts to the beam body and the needs of rotation.When earthquake occured, bearing has subtracted shock insulation function, can further reduce seismic forces to the impact of bridge pier, avoids bridge bridge pier to occur and cuts off, and the life passage is guarded in the generation of the situations such as beam that fall.
The utility model content
The technical problems to be solved in the utility model just is to provide that a kind of simple and reasonable, isolation property is stable, friction energy-dissipating is effective, possess auto-reset function and can satisfy again and realize that bridge day normal temperature variable displacement puts vibration absorption and isolation support with the Novel friction of earthquake displacement separation requirement.
for solving the problems of the technologies described above, the technical solution adopted in the utility model is: comprise the upper bracket plate, lower support plate, be provided with two spherical rotation pieces on the lower concave curved surface at described lower support plate top, being provided with the top between two spherical rotation pieces and upper bracket plate is the plane, the bottom is the middle sliding shoe of upper concave curved surface, two spherical rotation pieces and lower concave curved surface, be respectively arranged with the lower peripheral surface friction pair between upper concave curved surface, upper sphere friction pair, be provided with the transverse plane friction pair between upper bracket plate and middle sliding shoe, be provided with the spacing ring that is complementary with middle sliding shoe on lower support plate.
Its additional technical feature is: described upper bracket plate is provided with the side direction baffle plate, is provided with the vertical plane friction pair between side direction baffle plate and middle sliding shoe.
A kind of Novel friction pendulum vibration absorption and isolation support provided by the utility model, identical with the effect of common bearing at ordinary times, be about to the bridge upper load and pass to uniformly substructure, can adapt to the deformation requirements that displacement that superstructure causes because of shrinkage and creep and warm variable displacement etc. cause simultaneously.Transverse plane friction pair between upper bracket plate and middle sliding shoe, realized separating of warm variable displacement and earthquake displacement, avoid traditional friction pendulum support to cause inside configuration to produce larger inferior internal force because warm variable displacement makes the lifting of beam body, thereby reduce the infringement to bridge construction, increase the service life.When earthquake occurs, in case the earthquake horizontal force is greater than the design shearing resistance of spacing ring, the spacing ring disconnection, middle sliding shoe, two spherical rotation piece level move to beginning to come and go, and realize the effect of shock insulation by middle sliding shoe and the arc surface prolongation natural vibration period of bridge of two spherical rotation pieces; By lower peripheral surface friction pair, upper sphere friction pair, seismic energy is converted into heat energy, thereby realizes the purpose of power consumption, because considered the layering power consumption on structure design, so friction energy-dissipating is more obvious, and damping effect is better.The upper bracket plate is provided with the side direction baffle plate, and bearing is Unidirectional moving type, is provided with the vertical plane friction pair between side direction baffle plate and middle sliding shoe.Vertical plane friction pair and transverse plane friction pair have been realized separating of warm variable displacement and shock insulation displacement jointly, have avoided traditional friction pendulum support because of the beam body lifting that positive normal temperature variable displacement causes, produce the damage that time internal force causes girder construction.This seat structure is reasonable, safe and reliable, and damping and isolation effect is obvious.
Description of drawings
Fig. 1 is the structural representation of a kind of Novel friction pendulum of the utility model vibration absorption and isolation support.
The specific embodiment
Be described in further details below in conjunction with the concrete structure of accompanying drawing to a kind of Novel friction pendulum of the utility model vibration absorption and isolation support.
as shown in Figure 1, a kind of Novel friction pendulum of the utility model vibration absorption and isolation support comprises upper bracket plate 1, lower support plate 2, be provided with two spherical rotation pieces 3 on the concave curved surface at lower support plate 2 tops, it is the plane that 1 of two spherical rotation pieces 3 and upper bracket plate are provided with the top, the bottom is the middle sliding shoe 4 of upper concave curved surface, two spherical rotation pieces 3 and lower concave curved surface, be respectively arranged with lower peripheral surface friction pair 5 between upper concave curved surface, upper sphere friction pair 6, 4 of upper bracket plate 1 and middle sliding shoes are provided with transverse plane friction pair 7, upper bracket plate 1 is provided with side direction baffle plate 8, 4 of side direction baffle plate 8 and middle sliding shoes are provided with vertical plane friction pair 9, be provided with the spacing ring 10 that is complementary with middle sliding shoe 4 on lower support plate 2.
A kind of Novel friction pendulum vibration absorption and isolation support provided by the utility model, identical with the effect of common bearing at ordinary times, be about to the bridge upper load and pass to uniformly substructure, can adapt to the deformation requirements that displacement that superstructure causes because of shrinkage and creep and warm variable displacement etc. cause simultaneously.Transverse plane friction pair 7 between upper bracket plate 1 and middle sliding shoe 4, realized separating of warm variable displacement and earthquake displacement, avoid traditional friction pendulum support to cause inside configuration to produce larger inferior internal force because warm variable displacement makes the lifting of beam body, thereby reduce the infringement to bridge construction, increase the service life.When earthquake occurs, in case the earthquake horizontal force is greater than the design shearing resistance of spacing ring 10, spacing ring 10 disconnects, centre sliding shoe 4, two spherical rotation piece 3 levels move to beginning to come and go, and realize the effect of shock insulation by middle sliding shoe 4 and the arc surface prolongation natural vibration period of bridge of two spherical rotation pieces 3; By lower peripheral surface friction pair 5, upper sphere friction pair 6, seismic energy is converted into heat energy, thereby realizes the purpose of power consumption, because considered the layering power consumption on structure design, so friction energy-dissipating is more obvious, and damping effect is better.Upper bracket plate 1 is provided with side direction baffle plate 8, and bearing is Unidirectional moving type, is provided with vertical plane friction pair 9 at side direction baffle plate 8 and 4 of middle sliding shoes.Vertical plane friction pair 9 and transverse plane friction pair 7 have been realized separating of warm variable displacement and shock insulation displacement jointly, have avoided traditional friction pendulum support because of the beam body lifting that positive normal temperature variable displacement causes, produce the damage that time internal force causes girder construction.
A kind of novel Novel friction pendulum vibration absorption and isolation support provided by the utility model is not limited only to above-mentioned form, but no matter be to adopt which kind of form, as long as structure is identical with the utility model, all falls into protection domain of the present utility model.
Claims (2)
1. a Novel friction is put vibration absorption and isolation support, comprise upper bracket plate, lower support plate, it is characterized in that: be provided with two spherical rotation pieces on the lower concave curved surface at described lower support plate top, being provided with the top between two spherical rotation pieces and upper bracket plate is that plane, bottom are the middle sliding shoe of upper concave curved surface, be respectively arranged with lower peripheral surface friction pair, upper sphere friction pair between two spherical rotation pieces and lower concave curved surface, upper concave curved surface, be provided with the transverse plane friction pair between upper bracket plate and middle sliding shoe, be provided with the spacing ring that is complementary with middle sliding shoe on lower support plate.
2. a kind of Novel friction according to claim 1 is put vibration absorption and isolation support, and it is characterized in that: described upper bracket plate is provided with the side direction baffle plate, is provided with the vertical plane friction pair between side direction baffle plate and middle sliding shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203181387U CN203270446U (en) | 2013-06-05 | 2013-06-05 | Novel friction shock-reduction seismic-isolation supporting seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203181387U CN203270446U (en) | 2013-06-05 | 2013-06-05 | Novel friction shock-reduction seismic-isolation supporting seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203270446U true CN203270446U (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203181387U Expired - Fee Related CN203270446U (en) | 2013-06-05 | 2013-06-05 | Novel friction shock-reduction seismic-isolation supporting seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203270446U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284061A (en) * | 2016-09-27 | 2017-01-04 | 成都市大通路桥机械有限公司 | A kind of change type friction pendulum damper bearing |
| CN107326802A (en) * | 2017-08-31 | 2017-11-07 | 济南大学 | Round table surface bearing |
-
2013
- 2013-06-05 CN CN2013203181387U patent/CN203270446U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284061A (en) * | 2016-09-27 | 2017-01-04 | 成都市大通路桥机械有限公司 | A kind of change type friction pendulum damper bearing |
| CN107326802A (en) * | 2017-08-31 | 2017-11-07 | 济南大学 | Round table surface bearing |
| CN107326802B (en) * | 2017-08-31 | 2023-07-25 | 济南大学 | Round table top support |
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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: 20131106 Termination date: 20170605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |