CN108396883A - A kind of change friction-pendulum shock-insulation support - Google Patents
A kind of change friction-pendulum shock-insulation support Download PDFInfo
- Publication number
- CN108396883A CN108396883A CN201810066888.7A CN201810066888A CN108396883A CN 108396883 A CN108396883 A CN 108396883A CN 201810066888 A CN201810066888 A CN 201810066888A CN 108396883 A CN108396883 A CN 108396883A
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- Prior art keywords
- block
- lower connecting
- connecting block
- friction
- concave surface
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
Abstract
The present invention relates to a kind of change friction-pendulum shock-insulation support, including upper link block, the lower connecting block being located at below upper link block, sliding block；The upper surface of lower connecting block is equipped with lower frictional layer, the lower surface sphere-contact of the upper surface of sliding block and upper link block, the lower surface of sliding block and the upper surface sphere-contact of lower connecting block.The lower surface of upper link block is spherical concave surface, and the upper surface of sliding block is the first spherical convex surface, and the spherical concave surface of upper link block and the first spherical convex surface of sliding block are adapted；The upper surface of lower connecting block is spherical concave surface, and the lower surface of sliding block is the second spherical convex surface, and the spherical concave surface of lower connecting block and the second spherical convex surface of sliding block are adapted.This change friction-pendulum shock-insulation support is with damping adaptive and with stronger self-resetting capability.Belong to technical field of isolation.
Description
Technical field
The present invention relates to technical field of isolation more particularly to a kind of change friction-pendulum shock-insulation supports.
Background technology
Earthquake is the significant damage that engineering structure faces, and is an important factor for consideration in Structural Design.In order to reduce
Influence of the earthquake to engineering structure, seismic isolation technology come into being.Rubber earthquake isolation support, but this are used in traditional seismic isolation technology mostly
The performance of kind of bearing under the influence of many factors such as vulcanization, deformation, temperature and design value there are deviations, and energy dissipation capacity is insufficient.
Friction-pendulum shock-insulation system is developed by base-isolated plain sliding systems.Conventional planar sliding and shock isolation system is unable to Self-resetting, and
Sliding capability discreteness is big, is difficult to control.The spherical sliding radius surface and friction coefficient of conventional friction pendulum shock isolating pedestal are fixed
Value.Therefore, the Seismic Isolation of Isolation Layer horizontal rigidity and additional damping provided is also definite value.The Seismic Isolation of Isolation Layer under different level geological processes
Performance does not have significant change, this makes Seismic Isolation of Isolation Layer, and horizontal displacement may be very big under rarely occurred earthquake and the effect of pole rarely occurred earthquake, branch
The safety of seat is not guaranteed.
Invention content
For the technical problems in the prior art, the purpose of the present invention is：A kind of change friction-pendulum shock-insulation support is provided,
With damping adaptive and with stronger self-resetting capability.
In order to achieve the above object, the present invention adopts the following technical scheme that：
A kind of change friction-pendulum shock-insulation support, including upper link block, the lower connecting block being located at below upper link block, sliding block；Under
The upper surface of link block is equipped with lower frictional layer, the lower surface sphere-contact of the upper surface of sliding block and upper link block, the following table of sliding block
The upper surface sphere-contact in face and lower connecting block.
It is further：The lower surface of upper link block is spherical concave surface, and the upper surface of sliding block is the first spherical convex surface, upper company
First spherical convex surface of the spherical concave surface and sliding block that connect block is adapted；The upper surface of lower connecting block is spherical concave surface, under sliding block
Surface is the second spherical convex surface, and the spherical concave surface of lower connecting block and the second spherical convex surface of sliding block are adapted.
It is further：The quantity of the spherical concave surface of lower connecting block at least one, set on the spherical concave surface of lower connecting block
There is lower frictional layer.
It is further：The quantity of the spherical concave surface of lower connecting block is one, and the friction coefficient of lower frictional layer is by spherical female
The center in face gradually increases to edge.
It is further：The quantity of the spherical concave surface of lower connecting block is one, is arranged under lower connecting block spherical shape concave surface
Frictional layer is alternately divided into friction definite value area and friction transition region successively from inside to outside.
It is further：The spherical concave surface of lower connecting block is equipped with multiple ball, and lower frictional layer is equipped with multiple balls outstanding
The sphere of body, lower frictional layer is embedded in the ball of lower connecting block spherical shape concave surface.
It is further：The edge of lower connecting block upper surface is equipped with displacement constraint ring, and the inside of displacement constraint ring is equipped with
Anticollision spacing ring.
It is further：Upper link block includes integrally formed upper junction plate and upper vertical block, cylindrical upper vertical block
Positioned at the lower end of upper junction plate, the lower surface of upper link block is the lower surface of upper vertical block；Lower connecting block includes integrally formed
Lower connecting plate and lower vertical block, lower vertical block are located at the upper end of lower connecting plate, and the upper surface of lower connecting block is the upper of lower vertical block
Surface.
It is further：The upper surface of upper link block is plane, edge prepared screw-bolt hole, the card of upper link block upper surface
The lower surface of block or card slot, lower connecting block is plane, edge prepared screw-bolt hole, fixture block or the card slot of lower connecting block lower surface.
It is further：From overlook direction, upper vertical block is fallen in the range of the spherical concave surface of lower connecting block.
Generally speaking, the invention has the advantages that：
This change friction-pendulum shock-insulation support forms multiple hysteretic characteristic sections, and bearing has stronger adaptivity.Bearing exists
The slip phase of multiple and different hysteretic characteristics can occur under lateral forces.Bearing is made in frequently occurred earthquake and basic intensity earthquake
Enhanced with lower self-resetting capability and still there is preferable restraining ability under rarely occurred earthquake and the effect of pole rarely occurred earthquake.
Description of the drawings
Fig. 1 is the structural schematic diagram for becoming friction-pendulum shock-insulation support.
Fig. 2 is the structural schematic diagram of sliding block.
Specific implementation mode
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
It is now attached to what is occurred in Figure of description for the ease of uniformly checking each reference numeral inside Figure of description
Icon note is unitedly described as follows：
1 is upper link block, and 2 be lower connecting block, and 3 be sliding block, and 4 be displacement constraint ring, and 5 be anticollision spacing ring, and 6 be lower connection
The spherical concave surface of block, 1-1 are upper junction plate, and 1-2 is upper vertical block, and 2-1 is lower connecting plate, and 2-2 is lower vertical block, and 3-1 is to slide
First spherical convex surface of block, 3-2 are the second spherical convex surface of sliding block.
For sake of convenience, now hereafter described orientation is described as follows：Hereafter described direction and Fig. 1 itself up and down
Direction up and down it is consistent.
Embodiment 1
As shown in Figure 1, Figure 2, a kind of change friction-pendulum shock-insulation support, including upper link block, it is located at below upper link block
Lower connecting block, sliding block.The upper surface of lower connecting block is equipped with lower frictional layer.The lower surface spherical surface of the upper surface of sliding block and upper link block
Contact, the lower surface of sliding block and the upper surface sphere-contact of lower connecting block, i.e., at the lower surface of sliding block and lower connecting block upper surface
Lower frictional layer sphere-contact.Sliding block is made of high-strength alloy.
Upper link block includes integrally formed upper junction plate and upper vertical block, and cylindrical upper vertical block is located at upper junction plate
Lower end, the lower surface of upper link block is the lower surface of upper vertical block.Lower connecting block include integrally formed lower connecting plate and
Vertical block down, lower vertical block are located at the upper end of lower connecting plate, the upper surface of lower connecting block be under vertical block upper surface.Upper company
The structure for connecing block and lower connecting block is simple, low manufacture cost.The concrete shape of upper link block and lower connecting block can also be according to reality
Border situation designs.
As shown in Figure 1, Figure 2, the lower surface of upper link block is spherical concave surface, the upper surface of sliding block is the first spherical male
Face, the spherical concave surface of upper link block and the first spherical convex surface of sliding block are adapted, and realize the ball between sliding block and upper link block
Face contacts, not Relative sliding between upper link block and sliding block.The upper surface of lower connecting block is spherical concave surface, and the lower surface of sliding block is
Second spherical convex surface, the spherical concave surface of lower connecting block are adapted with the second spherical convex surface of sliding block lower end, realize sliding block under
Sphere-contact between link block, sliding block can do spherical surface sliding with respect to lower connecting block.
The quantity of the spherical concave surface of lower connecting block can have multiple, and multiple spherical concave surfaces of lower connecting block are from inside to outside successively
It is smoothly connected, still, in the present embodiment 1, there are one the quantity of the spherical concave surface of lower connecting block, i.e. the spherical female of lower connecting block
The radius of curvature in face is a definite value.The spherical concave surface of lower connecting block is equipped with lower frictional layer, the friction system of entire lower frictional layer
Number increases from center to edge (from inside to outside) linear smoothing or nonlinear smoothing increases, and the friction coefficient at lower frictional layer center is most
Small, the friction coefficient at lower frictional layer edge is maximum.
The spherical concave surface of lower connecting block is equipped with multiple ball, and lower frictional layer is equipped with multiple spheres outstanding, lower frictional layer
Sphere insertion lower connecting block spherical shape concave surface ball in, lower frictional layer is gathered by modified Teflon or modified ultra-high molecular mass
Ethylene is made.
The mode that chromium plating may be used in lower frictional layer is made.
The edge of lower connecting block upper surface is equipped with displacement constraint ring, and the inside of displacement constraint ring is equipped with anticollision spacing ring.
The edge of lower connecting block spherical shape concave surface is seamlessly transitted with displacement constraint ring.
The upper surface of upper link block be plane, edge prepared screw-bolt hole, fixture block or the card slot of upper link block upper surface, i.e.,
Upper link block upper surface has reserved bolt hole or card slot or has been provided with fixture block, and the lower surface of lower connecting block is plane, lower connecting block
Edge prepared screw-bolt hole, fixture block or the card slot of lower surface.After prepared screw-bolt hole, fixture block or card slot, upper link block is tied with top
Structure connects, and lower connecting block is connect with substructure.
There are one the quantity of the spherical concave surface of upper link block, that is to say, that the radius of curvature of the spherical concave surface of upper link block
It is a definite value, i.e., corresponding to spherical concave surface is the spherical surface of some ball, rather than the spherical surface of multiple balls links together.
From overlook direction, upper vertical block is fallen in the range of the spherical concave surface of lower connecting block, the width of upper vertical block
Less than the width of the spherical concave surface at the center of lower connecting block.
Under geological process, spherical surface sliding occurs for the spherical concave surface of sliding block and lower connecting block, to play friction energy-dissipating
Effect；With the enhancing of earthquake intensity, sliding block slides from the center of the spherical concave surface of lower connecting block to edge, and friction energy-dissipating is more next
It is stronger；Earthquake intensity is stronger, edge of the sliding block closer to the spherical concave surface of lower connecting block.It is reached a certain level in earthquake intensity
When, sliding block can touch anticollision spacing ring, and anticollision spacing ring can also play the role of energy consumption.Become friction-pendulum shock-insulation support tool in this way
There is multistage hysteretic characteristic that there is stronger Self-resetting characteristic.Become friction-pendulum shock-insulation support can adaptive different earthquake intensitys earthquake,
With damping adaptive, there is stronger self-resetting capability after earthquake.
Embodiment 2
In addition to following technical characteristic, remaining does not refer to technical characteristic with embodiment 1.
In the present embodiment 2, the quantity of the spherical concave surface of lower connecting block be also only there are one, i.e. the spherical concave surface of lower connecting block
Radius of curvature be a definite value.Lower frictional layer in lower connecting block spherical shape concave surface is set and is alternately divided into friction successively from inside to outside
Definite value area and friction transition region are a definite values in the friction coefficient of the lower frictional layer in friction definite value area, in friction transition region
The friction coefficient of lower frictional layer is a variate, and the lower frictional layer corresponding to the transition region that rubs should ensure that two neighboring friction definite value
Lower frictional layer corresponding to area seamlessly transits, and from overlook direction, all friction definite value areas and friction transition region are in concentric
Circle.In the present embodiment, there are two the definite value that rubs areas, and there are one the transition regions that rubs, and friction transition area is located at two friction definite value areas
Between.
Embodiment 3
In addition to following technical characteristic, remaining does not refer to technical characteristic with embodiment 1.
In the present embodiment 3, there are two the quantity of the spherical concave surface of lower connecting block, i.e. the curvature of the spherical concave surface of lower connecting block
There are two radiuses, and two radius of curvature are all definite values, i.e. the spherical concave surface of the spherical concave surface at center and outside.It is arranged in lower company
The lower frictional layer for connecing block spherical shape concave surface is alternately divided into friction definite value area and friction transition region successively from inside to outside, in friction definite value area
The friction coefficient of lower frictional layer be a definite value, be a variate in the friction coefficient of the lower frictional layer of friction transition region, rub
It wipes the lower frictional layer corresponding to transition region and should ensure that the lower frictional layer corresponding to two neighboring friction definite value area seamlessly transits, from bowing
It is seen in apparent direction, all friction definite value areas and friction transition region are in concentric circles.In the present embodiment, there are two the definite value that rubs areas,
There are one the transition regions that rubs, and friction transition area is located between two friction definite value areas, the friction definite value area at center and friction transition
The centrally located spherical concave surface in area, the friction definite value area in outside is located at the spherical concave surface in outside.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (10)
1. a kind of change friction-pendulum shock-insulation support, it is characterised in that：Including upper link block, the lower connection being located at below upper link block
Block, sliding block；The upper surface of lower connecting block be equipped with lower frictional layer, the lower surface sphere-contact of the upper surface of sliding block and upper link block,
The lower surface of sliding block and the upper surface sphere-contact of lower connecting block.
2. a kind of change friction-pendulum shock-insulation support described in accordance with the claim 1, it is characterised in that：The lower surface of upper link block is ball
The upper surface of shape concave surface, sliding block is the first spherical convex surface, and the spherical concave surface of upper link block is mutually fitted with the first spherical convex surface of sliding block
It answers；The upper surface of lower connecting block is spherical concave surface, and the lower surface of sliding block is the second spherical convex surface, the spherical concave surface of lower connecting block with
Second spherical convex surface of sliding block is adapted.
3. a kind of change friction-pendulum shock-insulation support according to claim 2, it is characterised in that：The spherical concave surface of lower connecting block
Quantity at least one, the spherical concave surface of lower connecting block is equipped with lower frictional layer.
4. a kind of change friction-pendulum shock-insulation support described in accordance with the claim 3, it is characterised in that：The spherical concave surface of lower connecting block
Quantity is one, and the friction coefficient of lower frictional layer gradually increases from the center of spherical concave surface to edge.
5. a kind of change friction-pendulum shock-insulation support described in accordance with the claim 3, it is characterised in that：The spherical concave surface of lower connecting block
Quantity is one, and the lower frictional layer in lower connecting block spherical shape concave surface is arranged and is alternately divided into friction definite value area successively from inside to outside and rubs
Transition region is wiped, it is a definite value in the friction coefficient of the lower frictional layer in friction definite value area, in the lower frictional layer of friction transition region
Friction coefficient is a variate.
6. a kind of change friction-pendulum shock-insulation support described in accordance with the claim 3, it is characterised in that：On the spherical concave surface of lower connecting block
Equipped with multiple ball, lower frictional layer is equipped with multiple spheres outstanding, the sphere insertion lower connecting block spherical shape concave surface of lower frictional layer
In ball.
7. a kind of change friction-pendulum shock-insulation support according to claim 2, it is characterised in that：The edge of lower connecting block upper surface
Place is equipped with displacement constraint ring, and the inside of displacement constraint ring is equipped with anticollision spacing ring.
8. a kind of change friction-pendulum shock-insulation support described in accordance with the claim 1, it is characterised in that：Upper link block includes integrally formed
Upper junction plate and upper vertical block, cylindrical upper vertical block be located at the lower end of upper junction plate, the lower surface of upper link block is upper
The lower surface of vertical block；Lower connecting block includes integrally formed lower connecting plate and lower vertical block, and lower vertical block is located at lower connecting plate
Upper end, the upper surface of lower connecting block is the upper surface of lower vertical block.
9. a kind of change friction-pendulum shock-insulation support described in accordance with the claim 1, it is characterised in that：The upper surface of upper link block is flat
The lower surface in face, edge prepared screw-bolt hole, fixture block or the card slot of upper link block upper surface, lower connecting block is plane, lower connection
Edge prepared screw-bolt hole, fixture block or the card slot of block lower surface.
10. a kind of change friction-pendulum shock-insulation support according to claim 8, it is characterised in that：It is upper perpendicular from overlook direction
Straight block is fallen in the range of the spherical concave surface of lower connecting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810066888.7A CN108396883A (en) | 2018-01-24 | 2018-01-24 | A kind of change friction-pendulum shock-insulation support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810066888.7A CN108396883A (en) | 2018-01-24 | 2018-01-24 | A kind of change friction-pendulum shock-insulation support |
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| CN108396883A true CN108396883A (en) | 2018-08-14 |
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| CN201810066888.7A Pending CN108396883A (en) | 2018-01-24 | 2018-01-24 | A kind of change friction-pendulum shock-insulation support |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853769A (en) * | 2019-03-11 | 2019-06-07 | 广州大学 | Rail mounted becomes friction-pendulum shock-insulation support |
| CN110042750A (en) * | 2019-05-20 | 2019-07-23 | 华中科技大学 | A kind of variable element friction-pendulum shock-insulation support |
| CN110409606A (en) * | 2019-08-02 | 2019-11-05 | 中国航空规划设计研究总院有限公司 | A kind of assembling type steel structure system and its design method of friction pendulum connection |
| CN114045951A (en) * | 2021-10-11 | 2022-02-15 | 武汉工程大学 | Combined three-dimensional shock insulation or vibration isolation support for anti-pulling friction pendulum and thick-flesh rubber |
| CN114482316A (en) * | 2022-02-22 | 2022-05-13 | 广州大学 | Bidirectional variable-curvature variable-friction pendulum type tuned mass damper |
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| US20140026498A1 (en) * | 2011-02-21 | 2014-01-30 | Politecnico Di Milano | Antiseismic support |
| CN104912201A (en) * | 2015-06-25 | 2015-09-16 | 哈尔滨工业大学 | Variable friction-type spherical surface-cylindrical surface friction-type support |
| CN206128346U (en) * | 2016-10-14 | 2017-04-26 | 智性科技南通有限公司 | Become camber friction pendulum isolation bearing |
| CN207988195U (en) * | 2018-01-24 | 2018-10-19 | 广州大学 | A kind of change friction-pendulum shock-insulation support |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20090188179A1 (en) * | 2005-12-16 | 2009-07-30 | Steelpat Gmbh & Co. Kg | Friction pendulum bearing |
| US20140026498A1 (en) * | 2011-02-21 | 2014-01-30 | Politecnico Di Milano | Antiseismic support |
| CN104912201A (en) * | 2015-06-25 | 2015-09-16 | 哈尔滨工业大学 | Variable friction-type spherical surface-cylindrical surface friction-type support |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853769A (en) * | 2019-03-11 | 2019-06-07 | 广州大学 | Rail mounted becomes friction-pendulum shock-insulation support |
| CN109853769B (en) * | 2019-03-11 | 2024-02-13 | 广州大学 | Rail type friction-variable pendulum vibration isolation support |
| CN110042750A (en) * | 2019-05-20 | 2019-07-23 | 华中科技大学 | A kind of variable element friction-pendulum shock-insulation support |
| CN110409606A (en) * | 2019-08-02 | 2019-11-05 | 中国航空规划设计研究总院有限公司 | A kind of assembling type steel structure system and its design method of friction pendulum connection |
| CN114045951A (en) * | 2021-10-11 | 2022-02-15 | 武汉工程大学 | Combined three-dimensional shock insulation or vibration isolation support for anti-pulling friction pendulum and thick-flesh rubber |
| CN114482316A (en) * | 2022-02-22 | 2022-05-13 | 广州大学 | Bidirectional variable-curvature variable-friction pendulum type tuned mass damper |
| CN114482316B (en) * | 2022-02-22 | 2023-10-03 | 广州大学 | Bidirectional variable-curvature variable-friction pendulum tuned mass damper |
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