CN204081121U - Variation rigidity energy-dissipating device - Google Patents
Variation rigidity energy-dissipating device Download PDFInfo
- Publication number
- CN204081121U CN204081121U CN201420520157.2U CN201420520157U CN204081121U CN 204081121 U CN204081121 U CN 204081121U CN 201420520157 U CN201420520157 U CN 201420520157U CN 204081121 U CN204081121 U CN 204081121U
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- China
- Prior art keywords
- lead core
- core rubber
- rubber support
- plate
- slide block
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- Vibration Prevention Devices (AREA)
Abstract
The utility model relates to a kind of variation rigidity energy-dissipating device, comprises top junction plate, lower connecting plate, the first lead core rubber support, the second lead core rubber support, slide block and slide plate; Described second lead core rubber support upper end is fixed on the junction plate of top, the embedded fixing described slide block in bottom of described second lead core rubber support, and described slide plate is fixed on lower connecting plate, and described slide block is placed on slide plate, is close together under gravity; Described slide block and slide plate can relative slidings when device lateral is stressed; In the left and right sides of described second lead core rubber support, symmetry installs two the first lead core rubber supports, and the two ends up and down of described first lead core rubber support are separately fixed on top junction plate, lower connecting plate.The utility model utilizes variation rigidity energy-dissipating device, the vibration of the different size of structure is controlled, gives full play to the power consumption effect of damper, and ensure that the safety under large earthquake situations condition.This variation rigidity energy-dissipating device may be used for the vibration isolation of bridge engineering and building structure.
Description
Technical field
The utility model relates to variation rigidity energy-dissipating device, belongs to wind dynamic control and antidetonation, cushion technique field.
Background technology
Structure uniformity is that maximum a kind of vibration isolation modes is applied in domestic and international research the earliest.From current situation, Structure uniformity all achieves a lot of achievement in theory with in application.Passive Control does not need extra power, and its principle installs shock insulation or other energy dissipators at some position of structure, reduced the control mode of earthquake response by self power consumption.Because Passive Control has cheap, simple structure, is easy to safeguard and without the need to advantages such as extra power supports, obtains pay close attention to widely and be widely used in Practical Project at civil engineering field.
Lead core rubber support, as a kind of full-fledged energy-dissipating and shock-absorbing technology, is applied in much engineering reality abroad, also more and more extensive in the application of China.When structure produces vibration outside under incentive action, drive lead core rubber support to vibrate together, lead core rubber support relative motion produce power dissipates, thus reaches the object reducing dynamic respons.
The lead core rubber support used in current engineering mostly is single lead core rubber support and provides horizontal force, or is combined to form three-dimensional isolation with other form dampers.Said apparatus can only provide the power consumption of rigidity of fixation, can not the size adjustment of base area brisance to exert oneself and according to different earthquake earthquake intensity command displacement size, engineer applied is not too convenient.Can design a kind of novel variable stiffness apparatus system, make structure rigidity when little shake comparatively large, device can the displacement of strict limiting structure, as structure under shaking situation at wind does not swing; During middle shake, rigidity diminishes, and structure is by certain displacement vibration power consumption; Large shake timer rigidity becomes large, the displacement of strict limiting structure again, ensures structural safety.How to design a kind of variation rigidity energy-dissipating device to replace conventional damper, save cost, conveniently realize the vibration isolation of variation rigidity being an engineering roadblock always.
Utility model content
The purpose of this utility model is the defect existed for existing seismic isolation technology, provides a kind of variation rigidity energy-dissipating device, makes the vibration of the different size of this device energy control structure, gives full play to the power consumption effect of device.
For achieving the above object, the utility model adopts following technical proposals:
A kind of variation rigidity energy-dissipating device, comprises top junction plate, lower connecting plate, the first lead core rubber support, the second lead core rubber support, slide block and slide plate; Described second lead core rubber support upper end is fixed on the junction plate of top, the embedded fixing described slide block in bottom of described second lead core rubber support, and described slide plate is fixed on lower connecting plate, and described slide block is placed on slide plate, is close together under gravity; Described slide block and slide plate can relative slidings when device lateral is stressed; In the left and right sides of described second lead core rubber support, symmetry installs two the first lead core rubber supports, and the two ends up and down of described first lead core rubber support are separately fixed on top junction plate, lower connecting plate.
Described slide block can select the materials such as polytetrafluoro propylene; Described slide plate can select the materials such as aluminium, and surface is through special polishing, and need according to variable stiffness apparatus conversion rigidity and determine friction factor, when making lateral force larger, slide block can slide.
Compared with prior art, the utility model has following substantive distinguishing features and progress:
The utility model utilizes variation rigidity energy-dissipating device, the vibration of the different size of structure is controlled, gives full play to the power consumption effect of damper, and ensure that the safety under large earthquake situations condition.This variation rigidity energy-dissipating device may be used for the vibration isolation of bridge engineering and building structure.
Accompanying drawing explanation
Fig. 1 is variation rigidity energy-dissipating device original state generalized section.
Fig. 2 is variation rigidity energy-dissipating device critical slip circle state generalized section.
Fig. 3 is variation rigidity energy-dissipating device critical collision state generalized section.
Fig. 4 variation rigidity energy-dissipating device mechanical property schematic diagram.
Detailed description of the invention
Preferred embodiment accompanying drawings of the present utility model is as follows:
As shown in Figure 1, a kind of variation rigidity energy-dissipating device, comprises top junction plate 1, lower connecting plate 2, first lead core rubber support 3, second lead core rubber support 4, slide block 5 and slide plate 6; Described second lead core rubber support 4 upper end is fixed on top junction plate 1, the embedded fixing described slide block 5 in bottom of described second lead core rubber support 4, described slide plate 6 is fixed on lower connecting plate 2, and described slide block 5 is placed on slide plate 6, is close together under gravity; Described slide block 5 and slide plate 6 can relative slidings when device lateral is stressed; In the left and right sides of described second lead core rubber support 4, symmetry installs two the first lead core rubber supports 3, and the two ends up and down of described first lead core rubber support 3 are separately fixed on top junction plate 1, lower connecting plate 2.
As shown in Figure 2, earthquake or vibration less time, the displacement of top junction plate and lower connecting plate is relatively little, lateral displacement is produced when top junction plate 1 is stressed, drive that the slide block 5 of the first lead core rubber support 3, second lead core rubber support 4 bottom is now stressed is less than maximum static friction force, slide block 5 is static, it is poor that second lead core rubber support about 4 produces lateral displacement, supposes that the first lead core rubber support 3 rigidity is k
1, the second lead core rubber support 4 rigidity is k
2, then this time-varying rigidity energy-dissipating device stiffness K
1=2k
1+ k
2.Earthquake or when vibrating moderate, the displacement of top junction plate and lower connecting plate generation rather moderate, second lead core rubber support 4 lower slider 5 is now stressed is greater than maximum static friction force, slide block 5 slides relative to slide plate 6, second lead core rubber support about 4 is poor without lateral displacement, second lead core rubber support 4 produces translation with slide block 5, and now the second lead core rubber support 4 does not consume energy, then this time-varying rigidity energy-dissipating device stiffness K
2=2k
1.
As shown in Figure 3, earthquake or vibration larger time, there is relatively large displacement in top junction plate and lower connecting plate, when top junction plate 1 lateral displacement is larger, slide block 5 slides into maximum displacement place and collides with the first lead core rubber support 3 bottom, slide block 5 is static, and the second lead core rubber support about 4 generation lateral displacement is poor subsequently, then this time-varying rigidity energy-dissipating device stiffness K
3=2k
1+ k
2.
Variation rigidity energy-dissipating device has different-stiffness as shown in Figure 4 in the different displacement stage, and the controllably shake effect of this device, on the impact of structure, makes structure bear large rigidity when low earthquake intensity, strict limiting displacement; When middle earthquake intensity, rigidity diminishes, and displacement increases, and increases Structural Energy Dissipation; When large earthquake intensity, rigidity becomes large again, simultaneously power consumption and limiting displacement.
Claims (1)
1. a variation rigidity energy-dissipating device, is characterized in that, comprises top junction plate (1), lower connecting plate (2), the first lead core rubber support (3), the second lead core rubber support (4), slide block (5) and slide plate (6); Described second lead core rubber support (4) upper end is fixed on top junction plate (1), the embedded fixing described slide block (5) in bottom of described second lead core rubber support (4), described slide plate (6) is fixed on lower connecting plate (2), described slide block (5) is placed on slide plate (6), is close together under gravity; Described slide block (5) and slide plate (6) can relative slidings when device lateral is stressed; In the left and right sides of described second lead core rubber support (4), symmetry installs two the first lead core rubber supports (3), and the two ends up and down of described first lead core rubber support (3) are separately fixed on top junction plate (1), lower connecting plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420520157.2U CN204081121U (en) | 2014-09-11 | 2014-09-11 | Variation rigidity energy-dissipating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420520157.2U CN204081121U (en) | 2014-09-11 | 2014-09-11 | Variation rigidity energy-dissipating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204081121U true CN204081121U (en) | 2015-01-07 |
Family
ID=52173855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420520157.2U Expired - Fee Related CN204081121U (en) | 2014-09-11 | 2014-09-11 | Variation rigidity energy-dissipating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204081121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681552A (en) * | 2020-12-24 | 2021-04-20 | 青岛理工大学 | Second-order enhanced type connecting beam type metal damping shock absorption system |
-
2014
- 2014-09-11 CN CN201420520157.2U patent/CN204081121U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681552A (en) * | 2020-12-24 | 2021-04-20 | 青岛理工大学 | Second-order enhanced type connecting beam type metal damping shock absorption system |
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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: 20150107 Termination date: 20150911 |
|
| EXPY | Termination of patent right or utility model |