CN107268426B - Adaptive damping properties of lead-core rubber damper - Google Patents
Adaptive damping properties of lead-core rubber damper Download PDFInfo
- Publication number
- CN107268426B CN107268426B CN201710381905.1A CN201710381905A CN107268426B CN 107268426 B CN107268426 B CN 107268426B CN 201710381905 A CN201710381905 A CN 201710381905A CN 107268426 B CN107268426 B CN 107268426B
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- CN
- China
- Prior art keywords
- steel plate
- lead
- rubber
- core
- spare
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
-
- 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
- E04H9/022—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising laminated structures of alternating elastomeric and rigid layers
Abstract
The present invention relates to a kind of adaptive damping properties of lead-core rubber damper, including upper junction steel plate, upper sealing plate, rubber, steel plate, fixed lead for retractable pencil, spare lead core, spare lead core slide cartridge, compression spring, fixture block, fixture block groove, lower sealing plate, lower junction steel plate, rubber protective layer and internal reservation hole.Rubber, steel plate can be round or rectangle.Energy is absorbed by the plastic deformation of lead for retractable pencil, shock insulation function is played by the good flexibility of rubber layer.Multiple spare lead cores are set, and spare lead core is prefabricated component, and when relatively larger transverse relative displacement occurs, spare lead core is inserted into rubber layer, and equivalent lead core diameter increases, and equivalent damping ratio and energy dissipation increase simultaneously.It by control lead for retractable pencil lower rubber layer, the void shape of steel plate layer, slides into each spare lead core lead for retractable pencil when certain displacement has occurred to some direction in support along hole, and ensures that spare lead core does not hinder the Self-resetting of building.
Description
Technical field
The present invention relates to a kind of adaptive damping properties of lead-core rubber damper, are controlled by the sidesway size of upper and lower plates, direction
To change the equivalent lead core diameter of support, change is damped for the slide-in of lead for retractable pencil.Belong to civil structure vibration control field.
Background technique
Lead core rubber support has preferable hysteretic characteristic, and initial stiffness can reach 10 times of General Purpose Rubber support or more,
And the rigidity after surrendering is close to General Purpose Rubber support stiffness, and simple structure, biggish damping is capable of providing, so extensive
Applied to bridge, building subtract, shock insulation.
Both at home and abroad by damping, shock isolating pedestal be applied to structure quake control experience have shown that, reasonably select damping, shock insulation branch
Seat dynamic parameters are the key points for reducing seismic structural response.But the earthquake motion of areal is irregular, and
Traditional lead core rubber support its mechanical property after size is fixed has been fixed, and changeable earthquake load, institute can not be adapted to
With it is necessary to design a kind of lead core rubber support that can change mechanical property according to different situations.The adaptive damping lead invented
Core rubber support is adapted to large range of earthquake magnitude, and when earthquake magnitude is smaller, structure does not have too big displacement, spare
Lead for retractable pencil will not work, and only lead for retractable pencil works, and rigidity is unlikely to too big.When earthquake is larger, building and basis occur compared with
Big relative side-displacement, causes spare lead core to slide into, and participates in energy consumption.
Summary of the invention
The purpose of the present invention is to solve traditional lead core rubber support mechanical properties to fix, and does not adapt to shake on a large scale
Grade proposes a kind of adaptive damping properties of lead-core rubber damper.
The present invention is achieved by the following technical solutions:
A kind of adaptive damping properties of lead-core rubber damper proposed by the present invention, including upper junction steel plate 1, upper sealing plate 2, lower sealing plate
11, lower junction steel plate 12, rubber steel plate layer, fixed lead for retractable pencil 5, spare lead core 6 and spare lead core slide cartridge 7, in which: the rubber steel
Plate layer is stacked alternately from top to bottom by rubber 3 and steel plate 4, and rubber protective layer 13 is fixed on junction steel plate 1 and lower connection
Between steel plate 12, rubber steel plate layer is arranged in the rubber protective layer 13, is equipped with upper sealing plate 2, the upper envelope at the top of rubber steel plate layer
2 top of plate is connected with upper junction steel plate 1, and rubber steel plate layer bottom is equipped with lower sealing plate 11, lower 11 bottom of sealing plate and lower connection
Steel plate 12 is connected, and the fixed lead for retractable pencil 5 sequentially passes through upper sealing plate 2, rubber steel plate layer and lower sealing plate 11, and one end is fixed on
1 bottom of junction steel plate, the other end are fixed on 12 top of junction steel plate；It is equidirectional with fixed lead for retractable pencil 5, it is set in rubber steel plate layer
There are several reserving holes 14, the reserving hole 14 becomes larger in aperture from bottom to top, on the outside of 14 inner wall of reserving hole
Equipped with fixture block 9,7 one end of spare lead core slide cartridge is connected at the top of spare lead core 6, is equipped with compression spring in the spare lead core slide cartridge 7
8, when upper junction steel plate 1 and lower 12 relative displacement of junction steel plate reach certain value, spare lead core 6 is from upper and enter in self gravity
It is slid into reserving hole 14 under double action with compression spring 8, the top of spare lead core 6 is stuck on junction steel plate 1, lower part
It is stuck on lower sealing plate 11, increases the damping of branch adaptive damping properties of lead-core rubber damper, energy consumption increases.
In the present invention, the cross section of the upper junction steel plate 1 and lower junction steel plate 12 is rectangle or circle.
In the present invention, the fixed lead for retractable pencil 5 is fixed in the middle part of rubber steel plate layer.
In the present invention, reserving hole 14 is symmetrically arranged in the surrounding of fixed lead for retractable pencil 5.
In the present invention, lubricant can be added in 7 inner wall of spare lead core slide cartridge, to prevent friction suffered by spare lead core 6 excessive
It can not glide.
In the present invention, the spare lead core 6 is equipped with fixture block groove 10, when sliding into reserving hole 14 under spare lead core 6
Afterwards, the fixture block 9 is embedded in fixture block groove 10.
When lead for retractable pencil is enough to provide lateral rigidity, the sidesway of upper and lower plates is not up to the value for making spare lead core glide, spare
Lead for retractable pencil will not glide.And when sidesway is excessive, spare lead core glides, and endurance and stiffness increases, and energy consumption increases, and damping becomes larger.
The present invention has the advantages that
Support can carry out damping adjusting according to the relative horizontal displacement of structure and basis, adapt to different earthquake magnitudes,
When earthquake magnitude is smaller, flexibility is moderate, and when earthquake is larger, spare lead core is slid into, and damping increases, and energy consumption increases.It simultaneously participates in
The spare lead core of energy consumption is conveniently replaceable, and increases the service life of support.
Detailed description of the invention
Fig. 1 is main view of the present invention, lateral sectional view；
Fig. 2 is the top view that junction steel plate section is rectangle in the present invention；
Fig. 3 is that junction steel plate section is circular top view in the present invention；
Figure label: 1 is upper junction steel plate, 2 be upper sealing plate, 3 be rubber, 4 be steel plate, 5 be fixed lead for retractable pencil, 6 be spare
Lead for retractable pencil, 7 be spare lead core slide cartridge, 8 be compression spring, 9 be fixture block, 10 be fixture block groove, 11 be lower sealing plate, 12 be lower connection steel
Plate, 13 be rubber protective layer, 14 be reserving hole.
Specific embodiment
The embodiment of the invention will now be described in detail with reference to the accompanying drawings.
Embodiment 1:
As shown in Figure 1-Figure 3, the present invention is a kind of adaptive damping properties of lead-core rubber damper, can guarantee that support can root
Itself damping is adjusted according to earthquake magnitude, comprising: upper junction steel plate 1, upper sealing plate 2, rubber 3, steel plate 4, fixed lead for retractable pencil 5, spare lead
Core 6, spare lead core slide cartridge 7, compression spring 8, fixture block 9, fixture block groove 10, lower sealing plate 11, lower junction steel plate 12, rubber protective layer
13 and reserving hole 14: spare lead core 6, spare lead core slide cartridge 7 are arranged on the different directions of fixed lead for retractable pencil 5.Rectangle or circle
Rubber 3 and steel plate 4 are clipped in the middle by upper junction steel plate 1, upper sealing plate 2, lower sealing plate 11, the lower junction steel plate 12 of shape, rubber protection
Around layer 13 is wrapped in, fixed lead for retractable pencil 5 is cast in center.Rubber 3, steel plate 4 are preset with pre- in all directions of fixed lead for retractable pencil 5
It boxes out hole 14, spare lead core 6 is allowed to slide into.It is affixed in 14 outer upper of reserving hole, fixture block 9 and top layer rubber 3 or steel plate 4.
Spare lead core slide cartridge 7 is fixedly arranged on junction steel plate 1, and inside top installs compression spring 8, and spare lead core 6 is pressed into, make by
Pressing spring 8 is pressurized.When reaching certain value on upper junction steel plate 1 and lower 12 relative displacement in a certain direction of junction steel plate, resistance
Hinder spare lead core 6 to slide into fixture block 9 and the disengaging of 6 bottom of spare lead core of reserving hole 14, no longer plays inhibition, while internal
14 inside of reserving hole is just bonded with the spare lead core of slide-in 6 under this displacement completely close to the side of spare lead core 6, spare
Lead for retractable pencil 6 just enters reserving hole 14 under the double action of self gravity and compression spring 7.About 6 spare lead core is stuck in lower envelope
In plate and upper junction steel plate, by deforming the lateral displacement for hindering to may continue to occur.And during Self-resetting, due to reserved
It is bonded at the beginning of being designed on the outside of hole 14 with spare lead core 6, so spare lead core 6 will not hinder the recovery process of support.
And the fixture block 9 that the top of spare lead core 6 hinders it to glide when being initial has reserved fixture block groove 10, therefore fixture block 9 will not
Hinder recovery process.
Claims (6)
1. a kind of adaptive damping properties of lead-core rubber damper, including upper junction steel plate (1), upper sealing plate (2), lower sealing plate (11), lower company
Connect steel plate (12), rubber steel plate layer, fixed lead for retractable pencil (5), spare lead core (6) and spare lead core slide cartridge (7), it is characterised in that: institute
It states rubber steel plate layer to be stacked alternately from top to bottom by rubber (3) and steel plate (4), rubber protective layer (13) is fixed on connection
Between steel plate (1) and lower junction steel plate (12), rubber steel plate layer, rubber steel plate layer top are provided in the rubber protective layer (13)
Portion is equipped with upper sealing plate (2), is connected at the top of the upper sealing plate (2) with upper junction steel plate (1), and rubber steel plate layer bottom is equipped with lower sealing plate
(11), lower sealing plate (11) bottom is connected with lower junction steel plate (12), the fixed lead for retractable pencil (5) sequentially pass through upper sealing plate (2),
Rubber steel plate layer and lower sealing plate (11), one end are fixed on junction steel plate (1) bottom, and the other end is fixed on lower junction steel plate
(12) top；It is equidirectional with fixed lead for retractable pencil (5), several reserving holes (14), the preformed hole are equipped in rubber steel plate layer
Hole (14) becomes larger in aperture from bottom to top, and the outside of reserving hole (14) inner wall is equipped with fixture block (9), spare lead core (6) top
Portion connects spare lead core slide cartridge (7) one end, compression spring (8) is equipped in the spare lead core slide cartridge (7), when upper junction steel plate
(1) when and lower junction steel plate (12) relative displacement reaches certain value, spare lead core (6) is from upper and enter in self gravity and compression bullet
It is slid into reserving hole (14) under the double action of spring (8), the top of spare lead core (6) is stuck on junction steel plate (1), lower part
It is stuck on lower sealing plate (11), increases the damping of adaptive damping properties of lead-core rubber damper, energy consumption increases.
2. adaptive damping properties of lead-core rubber damper according to claim 1, it is characterised in that: the upper junction steel plate (1) and under
The cross section of junction steel plate (12) is rectangle or circle.
3. adaptive damping properties of lead-core rubber damper according to claim 1, it is characterised in that: the fixed lead for retractable pencil (5) is fixed on
In the middle part of rubber steel plate layer.
4. adaptive damping properties of lead-core rubber damper according to claim 1, it is characterised in that: reserving hole (14) is symmetrically arranged in
The surrounding of fixed lead for retractable pencil (5).
5. adaptive damping properties of lead-core rubber damper according to claim 1, it is characterised in that: spare lead core slide cartridge (7) inner wall adds
Enter lubricant, to prevent the suffered friction of spare lead core (6) is excessive from can not glide.
6. adaptive damping properties of lead-core rubber damper according to claim 1, it is characterised in that: the spare lead core (6) is equipped with
Fixture block groove (10), after sliding into reserving hole (14) under spare lead core (6), the fixture block (9) is embedded in fixture block groove (10)
It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710381905.1A CN107268426B (en) | 2017-05-26 | 2017-05-26 | Adaptive damping properties of lead-core rubber damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710381905.1A CN107268426B (en) | 2017-05-26 | 2017-05-26 | Adaptive damping properties of lead-core rubber damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107268426A CN107268426A (en) | 2017-10-20 |
| CN107268426B true CN107268426B (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710381905.1A Expired - Fee Related CN107268426B (en) | 2017-05-26 | 2017-05-26 | Adaptive damping properties of lead-core rubber damper |
Country Status (1)
| Country | Link |
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| CN (1) | CN107268426B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107881906B (en) * | 2017-12-14 | 2023-07-18 | 西南交通大学 | Bridge anti-seismic steel support |
| CN109281418A (en) * | 2018-11-14 | 2019-01-29 | 辽宁工业大学 | A kind of compound multistage re-centring damper |
| CN110804936B (en) * | 2019-10-15 | 2021-10-15 | 招商局重庆交通科研设计院有限公司 | Synchronous deformation type shearing damper |
| CN110593079B (en) * | 2019-10-21 | 2021-03-09 | 温州博旺联科建筑工程有限公司 | Shock insulation temporary bridge |
| CN114182615A (en) * | 2021-12-22 | 2022-03-15 | 河南省交通勘察设计有限公司 | Integrally-assembled bridge structure capable of effectively damping |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3568586B2 (en) * | 1994-07-08 | 2004-09-22 | オイレス工業株式会社 | Lead encapsulated laminated rubber bearing |
| CN2272458Y (en) * | 1996-10-15 | 1998-01-14 | 铁道部科学研究院铁道建筑研究所 | Lead core rubber support |
| CN2435565Y (en) * | 2000-05-27 | 2001-06-20 | 张文芳 | Totally-enclosed friction damping support |
| CN202674128U (en) * | 2012-01-14 | 2013-01-16 | 赵世峰 | Improved rubber supporting base |
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- 2017-05-26 CN CN201710381905.1A patent/CN107268426B/en not_active Expired - Fee Related
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| CN107268426A (en) | 2017-10-20 |
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Granted publication date: 20181204 Termination date: 20210526 |