CN1664403A - Stiffness changing protective device with a laminated rubber bearer - Google Patents
Stiffness changing protective device with a laminated rubber bearer Download PDFInfo
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- CN1664403A CN1664403A CN 200510064461 CN200510064461A CN1664403A CN 1664403 A CN1664403 A CN 1664403A CN 200510064461 CN200510064461 CN 200510064461 CN 200510064461 A CN200510064461 A CN 200510064461A CN 1664403 A CN1664403 A CN 1664403A
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- slot
- laminated rubber
- screw rod
- static housing
- rubber bases
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Abstract
The invention relates to a stacking rubber supporting rigidity variable protection device that belongs to structure trembling insulated and libration control technology field. The device includes fixed box body, stacking rubber supporting, spring, plugs, slot, rolling supporting and screw. The plugs incorporate with the stacking rubber supporting. The slot connects to the series connected spring group that is fixed on the side of the fixed box body. The device has the advantage of quick response speed, and can adapt different rigidity demand. And it is simple structure, small volume and no energy consumption.
Description
Technical field
A kind of shock insulation laminated rubber bases stiffness changing protective device belongs to structures isolation effect control and vibration control technology field.Be mainly used in the protection of building foundation shock-proof devices such as house and bridge, particularly be applicable to and use the seismic isolation technology aspect of laminated rubber bases as medium.
Background technique
In the design and construction of bridge, building engineering structure, must consider the influence that earthquake, vibration etc. cause engineering structure.Bearing is a kind of structures isolation effect device of widely applying in the engineering construction, and it not only will give substructure the weight transmitting of the superstructure of building structure, but also will have the effect that subtracts shock insulation.
The laminated rubber bases shock insulation is a kind of comparatively ripe engineering seismic isolation technology, pass through shock-proof device, building superstructure and foundation " isolation ", change the dynamic property of superstructure, can greatly alleviate the dynamic action of earthquake, thereby reach the damping effect of " defeating a force with a tenderness " superstructure.The main at present form of using has natural rubber laminated rubber bases, high damping laminated rubber bases, lead rubber bearing, interior bag damping body laminated rubber bases etc.In the prior art, the damping of laminated rubber bases and stiffness parameters are in case after selected, these parameters just can't be regulated again in the course of the work, thereby limited the isolation property of laminated rubber damping bearing, so it is only applicable to short-period median low structure and rigid construction, and not too suitable to high level and skyscraper.The parameter limit that existing laminated rubber bases is fixing the laminated rubber bases application area, the development space of laminated rubber bases is restricted.
The masonry house of middle low layer adopts laminated rubber bases to carry out base isolation, can improve shock resistance significantly, but also come with some shortcomings.The basic principle of laminated rubber bases shock insulation is the fundamental period prolongation with the rigidity house, general design was got 1.5 seconds～2.0 seconds, can reduce structure so greatly to the response of concentration of energy, but still there is the possibility that class resonance takes place in the low frequency part in the seismic waves at the seismic waves of HFS.When earthquake was strong, because the also corresponding increase of energy that low frequency part contains, structural response will obviously increase, and when local especially vibration energy concentrated on low-frequency range, structural response can be bigger.Because the ratio of rigidity superstructure interlayer rigidity of shock insulation layer is little 100 times, even littler, distortion will be concentrated and be occurred in the shock insulation layer.Due to economic considerations, the laminated rubber bases diameter can not be used too greatly, and its Horizontal displacement just might surpass its deformation limit, causes unstable phenomenon to take place.
Summary of the invention
In order to improve laminated rubber bases Applicable scope, prevent the laminated rubber bases deformation instability, the present invention proposes a kind of laminated rubber bases stiffness changing protective device.
A kind of laminated rubber bases stiffness changing protective device of the present invention is implemented according to Fig. 1-technological scheme shown in Figure 6.This device mainly is made up of static housing 1, laminated rubber bases 9, spring 2, plug 3, slot 4, rolling support 5 and screw rod 6.On the upper and lower surface of laminated rubber bases 9 is respectively the upper junction plate 7 and the lower connecting plate 17 of laminated rubber bases 9, and upper junction plate 7 is provided with the fixing bolt 18 that is connected with superstructure 12.Lower connecting plate 17 is connected with the box plate of static housing 1 by fixing bolt 18.
Be provided with the plug 3 that connects by bolt 11 at the geometrical center place, four sides of upper junction plate 7.On four sidewalls of static housing 1, all have screw hole 16, screw rod 6 is passed this hole.Pocketed springs 2 on 6 sections of the screw rods of static housing 1 madial wall, also pocketed springs 2 on 6 sections of the screw rods of static housing 1 outer side wall, and baffle plate and nut 8 that fixing spring 2 is set in the end of screw rod 6 constitute the serial spring groups.The end of the screw rod 6 of static housing 1 madial wall connects slot 4.Between the box plate of slot 4 and static housing 1, be provided with rolling support 5.Slot 4 is supported in the upper end of rolling support 5, rolls and be seated on the box plate of static housing 1 in the lower end of rolling support 5.Plug 3, slot 4 and screw rod 6 be centered close to same horizontal line.
Described a kind of laminated rubber bases stiffness changing protective device, described slot 4 is made up of pin 13, soft spring 14, stove bolt 15 and slot 4 bodies.Its structural type is: at an opened round groove of slot 4 bodies of flat square body.The wall of groove all is provided with the stove bolt 15 of the band cavity that passes cell wall.In the cavity of stove bolt 15, place the soft spring 14 that an end is connected with pin 13.A tapped hole that is connected with screw rod 6 is opened in another side central position at slot 4 bodies of flat square body.
Described a kind of laminated rubber bases stiffness changing protective device all has the screw hole 16 more than 2 on four sidewalls of described static housing 1.The serial spring group parallel connection of being made up of spring 2, screw rod 6, nut 8 and baffle plate 10 more than 2 groups can be connected with slot 4 then.
The working principle of a kind of laminated rubber bases stiffness changing protective device of the present invention and each parts effect are as described below.This device has utilized the controllability of spring rate.When being subjected to dynamic load, if laminated rubber shear deformation is excessive to be that Horizontal displacement is excessive, surpass plug 3 and slot 4 reservations apart from behind the d (the d value is the 30%-50% of laminated rubber bases 9 diameters), plug 3 just inserts in the slot 4, making plug 3, slot 4 and spring 2 be connected as a single entity no longer separates (as shown in Figure 2), and move together in company with laminated rubber bases 9, thereby change the horizontal rigidity of laminated rubber bases 9, make its resonance state, thereby reach the purpose that reduces laminated rubber bases 9 excessive deformation away from structure.After the vibration end, can be by 15 people of the stove bolt on the slot 4 for plug 3, slot 4 be separated.
The spring 2 that this device can be changed different-stiffness adapts to the needs of different-stiffness.Also can with the serial spring group parallel connection that spring 2, screw rod 6, nut 8 and baffle plate 10 are formed, satisfy the needs of laminated rubber bases 9 different-stiffness by the screw hole 16 on static housing 1 sidewall.
The laminated rubber bases 9 that this device adopted can be natural rubber laminated rubber bases, high damping laminated rubber bases, lead rubber bearing, interior bag damping body laminated rubber bases etc.
It is fast that a kind of laminated rubber bases stiffness changing protective device of the present invention has speed of response; Can adapt to the passive neoprene bearing horizontal rigidity is regulated of different-stiffness needs; Have and initiatively become the characteristic that rigidity controller is actively avoided the earthquake motion frequency,, and improved Applicable scope greatly so its damping and shock resistance are strong.This device has also that equipment is simple, volume is little, in light weight, member does not have wearing and tearing, easy accessibility, good reliability, no energy consumption and prevent the advantage of laminated rubber bases unstable failure.
Description of drawings
Fig. 1 is the structure sectional view of laminated rubber bases stiffness changing protective device of the present invention.
Fig. 2 is that the laminated rubber bases Horizontal displacement is excessive, surpass to reserve apart from the time laminated rubber bases stiffness changing protective device of the present invention working state figure.
Fig. 3 is the plan view of laminated rubber bases stiffness changing protective device of the present invention;
Fig. 4 is laminated rubber bases stiffness changing protective device inserting slot construction sectional view of the present invention and left pseudosection;
Fig. 5 is the plug construction schematic representation of laminated rubber bases stiffness changing protective device of the present invention;
Fig. 6 is a pin configuration schematic representation in the slot of laminated rubber bases stiffness changing protective device of the present invention.
Among the figure 1, static housing, 2, spring, 3, plug, 4, slot, 5, rolling support,
6, screw rod, 7, go up web, 8, nut, 9, laminated rubber bases,
10, baffle plate, 11, bolt, 12, superstructure, 13, pin,
14, soft spring, 15, stove bolt, 16, screw hole, 17, lower connecting plate,
18, fixing bolt.
Embodiment
Technological scheme according to the laminated rubber bases stiffness changing protective device of the present invention of Fig. 1～shown in Figure 6 is an one with commercially available and component-assembled Design and Machining, realizes this device.In this device, all adopt conventional bolt, thread connecting mode between each parts.
Claims (3)
1. laminated rubber bases stiffness changing protective device, it is characterized in that: this device mainly is made up of static housing (1), laminated rubber bases (9), spring (2), plug (3), slot (4), rolling support (5) and screw rod (6); On the upper and lower surface of laminated rubber bases (9) is respectively the upper junction plate (7) and the lower connecting plate (17) of laminated rubber bases (9), upper junction plate (7) is provided with the bolt (18), the lower connecting plate (17) that are connected with superstructure (12) and is connected with the box plate of static housing (1) by fixing bolt (18), is provided with the plug (3) that connects by bolt (11) at the geometrical center place, four sides of upper junction plate (7); On four sidewalls of static housing (1), all have screw hole (16), screw rod (6) is passed this hole; Also pocketed springs (2) and plate washer (10) and nut (8) that fixing spring (2) are set in the end of screw rod (6) constitute the serial spring group on pocketed springs (2) on screw rod (6) section of static housing (1) madial wall, screw rod (6) section at static housing 1 outer side wall; The end of the screw rod (6) of static housing (1) madial wall connects slot (4); Be provided with rolling support (5) between the box plate of slot (4) and static housing (1), slot (4) is supported in the upper end of rolling support (5), rolls and be seated on the box plate of static housing (1) in the lower end of rolling support (5); Plug (3), slot (4) and screw rod (6) be centered close to same horizontal line.
2. a kind of laminated rubber bases stiffness changing protective device according to claim 1 is characterized in that: slot (4) is made up of pin (13), soft spring (14), stove bolt (15) and slot (4) body; Its structural type is: the one side at slot (4) body of flat square body has groove, and the wall of groove all is provided with the stove bolt (15) of the band cavity that passes cell wall, places the soft spring (14) that an end is connected with pin (13) in the cavity of stove bolt (15); A tapped hole that is connected with screw rod (6) is opened in another side central position at slot (4) body of flat square body.
3. a kind of laminated rubber bases stiffness changing protective device according to claim 1 is characterized in that: all have the screw hole (16) more than 2 on four sidewalls of static housing (1); The serial spring group parallel connection by spring (2), screw rod (6), nut (8) and plate washer (10) formation with more than 2 groups is connected with slot (4) then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100644616A CN1313745C (en) | 2005-04-18 | 2005-04-18 | Stiffness changing protective device with a laminated rubber bearer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100644616A CN1313745C (en) | 2005-04-18 | 2005-04-18 | Stiffness changing protective device with a laminated rubber bearer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1664403A true CN1664403A (en) | 2005-09-07 |
| CN1313745C CN1313745C (en) | 2007-05-02 |
Family
ID=35035633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100644616A Expired - Fee Related CN1313745C (en) | 2005-04-18 | 2005-04-18 | Stiffness changing protective device with a laminated rubber bearer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1313745C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831827A (en) * | 2015-05-06 | 2015-08-12 | 福建工程学院 | Isolation layer limit protective device of inter-layer seismic isolation structure |
| CN108612962A (en) * | 2018-05-20 | 2018-10-02 | 苏州固特斯电子科技有限公司 | A kind of precision instrument damping base |
| CN109505445A (en) * | 2018-12-04 | 2019-03-22 | 北京建筑大学 | A kind of spring stopper and its application method for architectural vibration-insulation layer |
| CN112922004A (en) * | 2021-01-25 | 2021-06-08 | 广东迈基建设工程有限公司 | Novel anti-seismic and anti-corrosion house building foundation |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09133181A (en) * | 1995-11-09 | 1997-05-20 | Kajima Corp | Variable damping type base isolation device |
| CN2335175Y (en) * | 1997-12-31 | 1999-08-25 | 华南建设学院西院 | Rigity variation, damping controller |
| CN2346839Y (en) * | 1998-07-22 | 1999-11-03 | 西安建筑科技大学 | Self-damping laminated rubber shake isolating appts. |
| CN2685420Y (en) * | 2004-03-16 | 2005-03-16 | 广州大学 | Building shockproof support |
| CN2816169Y (en) * | 2005-04-18 | 2006-09-13 | 北京工业大学 | Rigid variable protection device for laminated rubber seat |
-
2005
- 2005-04-18 CN CNB2005100644616A patent/CN1313745C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831827A (en) * | 2015-05-06 | 2015-08-12 | 福建工程学院 | Isolation layer limit protective device of inter-layer seismic isolation structure |
| CN108612962A (en) * | 2018-05-20 | 2018-10-02 | 苏州固特斯电子科技有限公司 | A kind of precision instrument damping base |
| CN109505445A (en) * | 2018-12-04 | 2019-03-22 | 北京建筑大学 | A kind of spring stopper and its application method for architectural vibration-insulation layer |
| CN112922004A (en) * | 2021-01-25 | 2021-06-08 | 广东迈基建设工程有限公司 | Novel anti-seismic and anti-corrosion house building foundation |
| CN112922004B (en) * | 2021-01-25 | 2021-12-17 | 广东迈基建设工程有限公司 | Anti-seismic and anti-corrosion house building foundation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1313745C (en) | 2007-05-02 |
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Granted publication date: 20070502 |