CN107268426A - Adaptive damping properties of lead-core rubber damper - Google Patents
Adaptive damping properties of lead-core rubber damper Download PDFInfo
- Publication number
- CN107268426A CN107268426A CN201710381905.1A CN201710381905A CN107268426A CN 107268426 A CN107268426 A CN 107268426A CN 201710381905 A CN201710381905 A CN 201710381905A CN 107268426 A CN107268426 A CN 107268426A
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- China
- Prior art keywords
- steel plate
- lead
- rubber
- core
- spare
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
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 shrouding, lower junction steel plate, rubber cover and internal reservation hole.Rubber, steel plate can be circular or rectangles.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, when occurring relatively larger transverse relative displacement, in spare lead core insertion rubber layer, equivalent lead core diameter's increase, equivalent damping ratio and energy dissipation increase simultaneously.By control lead for retractable pencil lower rubber layer, steel plate layer void shape, each spare lead core lead for retractable pencil when bearing there occurs certain displacement to some direction is slipped into along hole, and ensure 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, controlled by the sidesway size of upper and lower plates, direction
Lead for retractable pencil slips into change the equivalent lead core diameter of bearing, changes damping.Belong to civil structure vibration control field.
Background technology
Lead core rubber support has preferable hysteretic characteristic, and initial stiffness can reach more than 10 times of General Purpose Rubber bearing,
And the rigidity after surrendering is close to General Purpose Rubber support stiffness, and simple structure, using the teaching of the invention it is possible to provide larger damping, 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, reasonable selection 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, it is impossible to adapt to changeable earthquake load, institute
It can change the lead core rubber support of mechanical property according to different situations to be necessary that design is a kind of.The adaptive damping lead invented
Core rubber support is adapted to large range of earthquake magnitude, when earthquake magnitude is smaller, and structure does not have too big displacement, standby
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 with basis occur compared with
Big relative side-displacement, causes spare lead core to slip into, and participates in power consumption.
The content of the invention
The invention aims to solve traditional lead core rubber support mechanical property to fix, it is impossible to adapt to a wide range of earthquake
A kind of adaptive damping properties of lead-core rubber damper of proposition of grade.
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 shrouding 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, wherein：The rubber steel plate
Layer is stacked alternately is formed from top to bottom by rubber 3 and steel plate 4, and rubber cover 13 is fixed on junction steel plate 1 and lower connection steel
Between plate 12, the rubber cover 13, which is set, is provided with upper sealing plate 2, the upper sealing plate 2 at the top of rubber steel plate layer, rubber steel plate layer
Top is connected with upper junction steel plate 1, and rubber steel plate layer bottom is provided with lower shrouding 11, the lower bottom of shrouding 11 and lower junction steel plate
12 are connected, and the fixed lead for retractable pencil 5 sequentially passes through upper sealing plate 2, rubber steel plate layer and lower shrouding 11, and its one end is fixed on connection
The bottom of steel plate 1, the other end is fixed on the top of junction steel plate 12；It is equidirectional with fixed lead for retractable pencil 5, if being provided with rubber steel plate layer
Dry reserving hole 14, the reserving hole 14 is become larger in aperture from bottom to top, and the outside of the inwall of reserving hole 14 is provided with
Compression spring 8 is provided with fixture block 9, the one end of the top of spare lead core 6 connection spare lead core slide cartridge 7, the spare lead core slide cartridge 7, when
When upper junction steel plate 1 and the lower relative displacement of junction steel plate 12 reach certain value, spare lead core 6 from it is upper and enter self gravitation and by
Slipped under the double action of pressing spring 8 in reserving hole 14, the top of spare lead core 6 is stuck on junction steel plate 1, and bottom is stuck in
On lower shrouding 11, make the damping increase of branch adaptive damping properties of lead-core rubber damper, power consumption increase.
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, the inwall of spare lead core slide cartridge 7 can add lubricant, to prevent the suffered friction of spare lead core 6 excessive
It can not glide.
In the present invention, the spare lead core 6 is provided with fixture block groove 10, when sliding into reserving hole 14 under spare lead core 6
Afterwards, in the insertion fixture block of fixture block 9 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, standby
Lead for retractable pencil will not glide.And when sidesway is excessive, spare lead core glides, endurance and stiffness increase, power consumption increase, damping becomes big.
The advantage of the invention is that：
Bearing can carry out damping regulation according to structure and the relative horizontal displacement on basis, adapt to different earthquake magnitudes, local
Flexibility is moderate when shake smaller grade, and when earthquake is larger, spare lead core is slipped into, damping rise, power consumption increase.Simultaneously participate in power consumption
Spare lead core be conveniently replaceable, add the service life of bearing.
Brief description of the drawings
Fig. 1 is main view of the present invention, side cutaway view；
Fig. 2 is the top view of the upper junction steel plate rectangular cross-section of the present invention；
Fig. 3 is that junction steel plate section is circular top view in the present invention；
Label in figure：1 be 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 core,
7 it is spare lead core slide cartridge, 8 be compression spring, 9 be fixture block, 10 be fixture block groove, 11 be lower shrouding, 12 is lower junction steel plate, 13
It is reserving hole for rubber cover, 14.
Embodiment
The embodiment that 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, ensure that bearing can be with base area
Shake grade adjusts itself damping, including：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 shrouding 11, lower junction steel plate 12, the and of rubber cover 13
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 shrouding 11, lower junction steel plate 12, rubber cover 13
Around being wrapped in, fixed lead for retractable pencil 5 is cast in center.Rubber 3, steel plate 4 are preset with preformed hole in all directions of fixed lead for retractable pencil 5
Hole 14, allows spare lead core 6 to slip into.It is affixed in the outer upper of reserving hole 14, fixture block 9 and the superiors rubber 3 or steel plate 4.It is standby
Lead for retractable pencil 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, and makes compression bullet
Spring 8 is pressurized.When upper junction steel plate 1 and the lower relative displacement of junction steel plate 12 reach up to certain value in some side, hinder standby
The fixture block 9 of reserving hole 14 is slipped into lead for retractable pencil 6 and the bottom of spare lead core 6 departs from, and inhibition is no longer played, while internal reservation
The inner side of hole 14 is just fitted completely close to the side of spare lead core 6 under this displacement with the spare lead core 6 slipped into, spare lead core
6 just enter reserving hole 14 under the double action of self gravitation and compression spring 7.Spare lead core be stuck in about 6 lower shrouding with
In upper junction steel plate, by deforming the lateral displacement for hindering to may continue to occur.And during Self-resetting, due to reserving hole
Fitted at the beginning of 14 outsides are designed with spare lead core 6, so spare lead core 6 will not hinder the recovery process of bearing.And
The top of spare lead core 6 hinders its fixture block 9 glided to reserve fixture block groove 10 when being initial, therefore fixture block 9 will not also 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 shrouding（11）, lower company
Connect steel plate（12）, rubber steel plate layer, fixed lead for retractable pencil（5）, spare lead core（6）With spare lead core slide cartridge（7）, it is characterised in that：Institute
Rubber steel plate layer is stated by rubber（3）And steel plate（4）It is stacked alternately and forms from top to bottom, rubber cover（13）It is fixed on connection
Steel plate（1）With lower junction steel plate（12）Between, the rubber cover（13）Set and set at the top of rubber steel plate layer, rubber steel plate layer
There is upper sealing plate（2）, the upper sealing plate（2）Top and upper junction steel plate（1）It is connected, rubber steel plate layer bottom is provided with lower shrouding
（11）, the lower shrouding（11）Bottom and lower junction steel plate（12）It is connected, the fixed lead for retractable pencil（5）Sequentially pass through upper sealing plate（2）、
Rubber steel plate layer and lower shrouding（11）, its one end is fixed on junction steel plate（1）Bottom, the other end is fixed on junction steel plate
（12）Top；With fixed lead for retractable pencil（5）It is equidirectional, several reserving holes are provided with rubber steel plate layer（14）, the preformed hole
Hole（14）Aperture becomes larger from bottom to top, reserving hole（14）The outside of inwall is provided with fixture block（9）, spare lead core（6）Top
Portion connects spare lead core slide cartridge（7）One end, the spare lead core slide cartridge（7）It is interior to be provided with compression spring（8）, when upper junction steel plate
（1）With lower junction steel plate（12）When relative displacement reaches certain value, spare lead core（6）From upper and enter in self gravitation and compression bullet
Spring（8）Double action under slip into reserving hole（14）It is interior, spare lead core（6）Top be stuck in junction steel plate（1）On, bottom
It is stuck in lower shrouding（11）On, make the damping increase of branch adaptive damping properties of lead-core rubber damper, power consumption increase.
2. adaptive damping properties of lead-core rubber damper according to claim 1, it is characterised in that：The upper junction steel plate（1）With under
Junction steel plate（12）Cross section be 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）It 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）It is symmetrically arranged in
Fixed lead for retractable pencil（5）Surrounding.
5. adaptive damping properties of lead-core rubber damper according to claim 1, it is characterised in that：Spare lead core slide cartridge（7）Inwall can
To add lubricant, to prevent spare lead core（6）Suffered friction is excessive to glide.
6. adaptive damping properties of lead-core rubber damper according to claim 1, it is characterised in that：The spare lead core（6）It is provided with
Fixture block groove（10）, work as spare lead core（6）Under slide into reserving hole（14）Afterwards, the fixture block（9）Embedded 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 true CN107268426A (en) | 2017-10-20 |
| CN107268426B CN107268426B (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710381905.1A Expired - Fee Related CN107268426B (en) | 2017-05-26 | 2017-05-26 | Adaptive damping properties of lead-core rubber damper |
Country Status (1)
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| CN (1) | CN107268426B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107881906A (en) * | 2017-12-14 | 2018-04-06 | 西南交通大学 | A kind of bridge earthquake resistance bridle iron |
| CN109281418A (en) * | 2018-11-14 | 2019-01-29 | 辽宁工业大学 | A kind of compound multistage re-centring damper |
| CN110593079A (en) * | 2019-10-21 | 2019-12-20 | 温州博旺联科建筑工程有限公司 | Shock insulation temporary bridge |
| CN110804936A (en) * | 2019-10-15 | 2020-02-18 | 招商局重庆交通科研设计院有限公司 | Synchronous deformation type shearing damper |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0821484A (en) * | 1994-07-08 | 1996-01-23 | Oiles Ind Co Ltd | Lead-sealed laminated rubber support |
| 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 |
-
2017
- 2017-05-26 CN CN201710381905.1A patent/CN107268426B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0821484A (en) * | 1994-07-08 | 1996-01-23 | Oiles Ind Co Ltd | Lead-sealed laminated rubber support |
| 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107881906A (en) * | 2017-12-14 | 2018-04-06 | 西南交通大学 | A kind of bridge earthquake resistance bridle iron |
| CN109281418A (en) * | 2018-11-14 | 2019-01-29 | 辽宁工业大学 | A kind of compound multistage re-centring damper |
| CN110804936A (en) * | 2019-10-15 | 2020-02-18 | 招商局重庆交通科研设计院有限公司 | Synchronous deformation type shearing damper |
| CN110593079A (en) * | 2019-10-21 | 2019-12-20 | 温州博旺联科建筑工程有限公司 | Shock insulation temporary bridge |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN107268426B (en) | 2018-12-04 |
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