CN201933401U - High-damping combined plate rubber bearing - Google Patents
High-damping combined plate rubber bearing Download PDFInfo
- Publication number
- CN201933401U CN201933401U CN201120055079XU CN201120055079U CN201933401U CN 201933401 U CN201933401 U CN 201933401U CN 201120055079X U CN201120055079X U CN 201120055079XU CN 201120055079 U CN201120055079 U CN 201120055079U CN 201933401 U CN201933401 U CN 201933401U
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- plate
- lower support
- support plate
- high damping
- bearing
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Abstract
The utility model discloses a high-damping combined plate rubber bearing which comprises an upper connecting plate, a high-damping bearing base body, a lower connecting plate, polytetrafluoroethylene, a stainless steel plate and a lower bearing plate sequentially arranged from top to bottom, wherein a guide plate and a limit plate are arranged in the side direction of the lower bearing plate. The rubber bearing can ensure elastic working under the normal working state and ensure quick and accurate yield failure and energy dissipation under the limit working state of earthquake, the energy dissipation and shock absorption control structure can be replaced conveniently after earthquake damage, so that the manufacturing cost of the shock absorption control system or device is greatly reduced, and good social and economic benefits are generated.
Description
Technical field
The utility model relates to the bridge technology field, specifically is a kind of high damping composition board type neoprene bearing that is used for bridge.
Background technology
When bridge runs under the earthquake conditions, the swing of any direction may appear in full connection bridge, the high pier zone still relies on the plastic deformation of high pier to realize constraint, but restriction ability is limited, need short bridge pier to share jointly, promptly require the bearing in short bridge pier zone to rely on the shear strain of high-damping rubber to produce certain damping force after exceeding the free slippage stage, earthquake intensity is big more, the shear strain displacement is big more, and damping force is then big more.Subtract the seismic isolation technology field in engineering, progressively substituting traditional " hard resisting " mode such as new cushion techniques such as energy-dissipating and shock-absorbing, shock insulation, mass tuning damping and active and mixing controls.Many shakes countries and regions such as New Zealand, Japan, Italy and Taiwan take the lead in having grasped this technology, and have successfully developed the supporting of lead for retractable pencil isolation rubber, the supporting of high damping isolation rubber and various damper and be used for exempting to shake bridge or building structure.Abroad, exempt from the shake system and emphasize that the total fellowship subtracts shock insulation work, but the by-pass cock of various velocity correlation types (as damper etc.) plays effects such as coordination, control, equilibrium and distribution.This to subtract shock insulation hierarchy of control damping effect obvious, generally need not after the earthquake to change, but cost is high.
The utility model content
The purpose of this utility model is the deficiency that overcomes above-mentioned shock mount, a kind of high damping composition board type neoprene bearing is provided, this bearing divides the energy-dissipating and shock-absorbing technology of having utilized damping rubber shock insulation and accurate control limit horizontal force, reach the purpose of control rarely occurred earthquake peak value and decay seismic energy, thereby make bridge construction exempt from seismic damage.
The technical scheme that the utility model adopted is: a kind of high damping composition board type neoprene bearing, it is characterized in that: comprise the upper junction plate, high damping bearing matrix, lower connecting plate, polyfluortetraethylene plate, corrosion resistant plate and the lower support plate that set gradually from top to bottom, described lower support plate laterally disposed has guide strip and limiting plate.
Upper junction plate described in the utility model is connected by screw with lower connecting plate.Described lower support plate below also is provided with sleeve.Described limiting plate is fixed on the lower support plate by hold-down bolt and shear-pin.Described guide strip is by being bolted on the lower support plate.Be provided with sealing ring between described lower support plate and the lower connecting plate.
The utility model can guarantee elastic working under the normal operating conditions by adopting the switch of accurate control limit horizontal force, and yield failure energy dissipating quick and precisely under the maximal work state of assurance rarely occurred earthquake.Conveniently replaced behind the energy-dissipating and shock-absorbing control structure seismic damage, greatly reduce the cost that subtracts the shock insulation hierarchy of control or device, the suitable other country of states' employings such as the Japan of many earthquakes country, New Zealand exempts to shake the vibration-isolating system that subtracts of environment relatively, this removable earthquake isolating equipment that subtracts more can be fit to China's national situation and antidetonation environment, also will produce good social and economic benefit.
Description of drawings
Fig. 1 is that the utility model partly cuts open structural representation
Fig. 2 is that structural representation is partly cutd open in Fig. 1 side-looking
Among the figure: the 1-upper junction plate; 2-high damping bearing matrix; The 3-hold-down bolt; The 4-limiting plate; The 5-shear-pin; The 6-sleeve; The 7-lower connecting plate; The 8-polyfluortetraethylene plate; The 9-guide strip; The 10-sealing ring; The 11-corrosion resistant plate; 12 lower support plate.
The specific embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is described further
As shown in Figure 1, 2: high damping composition board type neoprene bearing comprises the upper junction plate 1, high damping bearing matrix 2, lower connecting plate 7, polyfluortetraethylene plate 8, corrosion resistant plate 11 and the lower support plate 12 that set gradually from top to bottom.Described lower support plate 12 laterally disposed has guide strip 9 and limiting plate 4.Upper junction plate 1 and lower connecting plate 7 are connected by screw.
Be provided with sealing ring 10 between described lower support plate 12 and the lower connecting plate 7, and lower support plate 12 belows also are provided with sleeve 6.Described limiting plate 4 is fixed on the lower support plate 12 by hold-down bolt 3 and shear-pin 5.Guide strip 9 is by being bolted on the lower support plate 12.
The utility model maximum shear displacement under normal conditions can reach 1 times of bondline thickness, and the maximum shear displacement can reach 2 times of bondline thickness during earthquake, can determine the ε q of bearing, d=1 and ε q, d=2.Simultaneously, for avoiding the extreme deformation situation occurring at the indivedual bearings in short bridge pier zone, each bearing is provided with the longitudinal spacing block when the design maximum length travel takes place.In addition, the upper and lower guide pad of this bearing has at direction across bridge ± gap of 5mm, adapt to freely stretch of beam body direction across bridge on the one hand, it is excessive to avoid beam body direction across bridge to be offset on the other hand.Simultaneously, when surpassing VIII degree earthquake intensity, following laterally steering piece connecting bolt is with destroyed, and horizontal restrain is destroyed and absorbed than after the macro-energy, and bearing begins to take place shear strain and produces multidirectional damping force, to realize the multiple protective to pier and superstructure.
Carrying of the present utility model and displacement embodiment are as follows:
Vertical load power transmission: beam body → upper junction plate → high damping bearing matrix → lower connecting plate → polyfluortetraethylene plate → corrosion resistant plate → lower support plate → pinner, pier;
Horizontal horizontal load power transmission: beam body → upper junction plate → guide strip → lower support plate → pinner, pier;
Vertical horizontal load power transmission: beam body → upper junction plate → limiting plate → lower support plate → pinner, pier;
Length travel: the friction pair that polyfluortetraethylene plate and corrosion resistant plate form, the rubber shear displacemant longitudinally takes place in its top in the high-damping rubber bearing under the lower support plate constraint;
Lateral displacement: the friction pair that polyfluortetraethylene plate and corrosion resistant plate form;
Corner: realize by rubber deformation.
Claims (6)
1. high damping composition board type neoprene bearing, it is characterized in that: comprise the upper junction plate (1), high damping bearing matrix (2), lower connecting plate (7), polyfluortetraethylene plate (8), corrosion resistant plate (11) and the lower support plate (12) that set gradually from top to bottom, described lower support plate (12) laterally disposed has guide strip (9) and limiting plate (4).
2. high damping composition board type neoprene bearing according to claim 1 is characterized in that described upper junction plate (1) is connected by screw with lower connecting plate (7).
3. high damping composition board type neoprene bearing according to claim 1 is characterized in that described lower support plate (12) below also is provided with sleeve (6).
4. high damping composition board type neoprene bearing according to claim 1 is characterized in that described limiting plate (4) is fixed on the lower support plate (12) by hold-down bolt (3) and shear-pin (5).
5. high damping composition board type neoprene bearing according to claim 1 is characterized in that described guide strip (9) is by being bolted on the lower support plate (12).
6. according to claim 1 or 3 or 4 or 5 described high damping composition board type neoprene bearings, it is characterized in that being provided with sealing ring (10) between described lower support plate (12) and the lower connecting plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120055079XU CN201933401U (en) | 2011-03-04 | 2011-03-04 | High-damping combined plate rubber bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120055079XU CN201933401U (en) | 2011-03-04 | 2011-03-04 | High-damping combined plate rubber bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201933401U true CN201933401U (en) | 2011-08-17 |
Family
ID=44444929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120055079XU Expired - Lifetime CN201933401U (en) | 2011-03-04 | 2011-03-04 | High-damping combined plate rubber bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201933401U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193317A (en) * | 2015-04-29 | 2016-12-07 | 中国建筑西北设计研究院有限公司 | A kind of rubber slat support node |
| CN107142844A (en) * | 2017-07-10 | 2017-09-08 | 上海市城市建设设计研究总院（集团）有限公司 | Stretch force type Horizontal limiting and sacrifice device |
| CN114250695A (en) * | 2021-12-30 | 2022-03-29 | 中铁大桥科学研究院有限公司 | Limiting device for bridge plate type rubber support |
-
2011
- 2011-03-04 CN CN201120055079XU patent/CN201933401U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193317A (en) * | 2015-04-29 | 2016-12-07 | 中国建筑西北设计研究院有限公司 | A kind of rubber slat support node |
| CN106193317B (en) * | 2015-04-29 | 2018-07-06 | 中国建筑西北设计研究院有限公司 | A kind of rubber slat support node |
| CN107142844A (en) * | 2017-07-10 | 2017-09-08 | 上海市城市建设设计研究总院（集团）有限公司 | Stretch force type Horizontal limiting and sacrifice device |
| CN114250695A (en) * | 2021-12-30 | 2022-03-29 | 中铁大桥科学研究院有限公司 | Limiting device for bridge plate type rubber support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20140630 Granted publication date: 20110817 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20150630 Granted publication date: 20110817 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |
|
| CX01 | Expiry of patent term |