CN104674973A - Shock isolation device with tensile property - Google Patents
Shock isolation device with tensile property Download PDFInfo
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- CN104674973A CN104674973A CN201510071280.XA CN201510071280A CN104674973A CN 104674973 A CN104674973 A CN 104674973A CN 201510071280 A CN201510071280 A CN 201510071280A CN 104674973 A CN104674973 A CN 104674973A
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- isolation layer
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Abstract
The invention relates to a shock isolation device with tensile property. The shock isolation device comprises an isolation layer top plate and an isolation layer bottom plate, wherein the isolation layer bottom plate is provided with a buttress, a damping support is arranged between the buttress and the isolation layer top plate, and a tensile device is arranged between the isolation layer top plate and the isolation layer bottom plate; the tensile device comprises at least a group of an upper support and a lower support upper support which are arranged correspondingly up and down, wherein the upper support is fixed on the isolation layer top plate, the lower support is fixed on the isolation layer bottom plate, the lower end of the upper support and the upper end of the lower support are provided with two electromagnets with the same oppositely arranged poles. According to the shock isolation device provided by the invention, the damage on the damping support can be prevented when the damping support is tensioned, therefore the mechanical property of the damping support can be ensured; furthermore, the shock isolation device can be applied to the tensile design of a rubber seat of a new shock isolation device, and can be applied to the tensile prevention on the rubber support of the built shock isolation device; in addition, the shock isolation device is simple in structure, clear to stress and convenient to realize.
Description
Technical field
The invention belongs to design of building structures field, be specifically related to a kind of earthquake isolating equipment with tensile property.
Background technology
Laminated rubber bases is applied at most in current isolation structure, technology is relative also the most ripe, the feature of laminated rubber bases is that vertical pressurized rigidity is very large, its vertical limit tensile stress is then much smaller than vertical limit compressive stress, this is because the tensile capacity of laminated rubber bases is mainly ensured by cohering between rubber and steel plate, when bearing tension, inside can produce a lot of micropore, and these internal injuries can reduce the mechanical property of bearing.Therefore, adopting in the isolation structure design of laminated rubber bases, should not there is tensile stress in General Requirements neoprene bearing.But in Practical Project, due to many factors such as construction error, earthquake isolating equipment aberrations in property, larger overturning moments, rubber earthquake isolation support still may occur that tension is even destroyed.Therefore, in actual engineering design, need consideration to take measures on customs clearance to prevent neoprene bearing from occurring tensile failure.Current existing tensile measure mainly adds metal bracelet, cable wire etc. between lower connecting plate on shock isolating pedestal, these chains and cable wire have the feature of a tension not pressurized, neoprene bearing tension can be prevented, but these metal bracelets or cable wire also can limit the horizontal movement of shock isolating pedestal to a certain extent, thus affect the isolating affection of structure.
In view of the foregoing, current each neoprene bearing producer, scientific research institution etc. are all carrying out correlative study work, strive that inventing some can prevent neoprene bearing tensile failure, do not affect again the method for its isolating affection.The present invention is exactly the earthquake isolating equipment with tensile property studying a kind of practicality obtained in order to meet above-mentioned requirements, and its technical scheme is novel, aufbauprinciple is easily understood, and has good promotion and use value.
Summary of the invention
For the defect existed in prior art, the invention provides a kind of earthquake isolating equipment with tensile property, shock isolating pedestal generation tensile failure can be prevented, ensure the mechanical property of shock isolating pedestal; Structure is simple, clearly stressed, is convenient to realize.
For reaching above object, the technical solution used in the present invention is: provide a kind of earthquake isolating equipment with tensile property, comprise Seismic Isolation of Isolation Layer top board and Seismic Isolation of Isolation Layer base plate, described Seismic Isolation of Isolation Layer base plate is provided with buttress, shock isolating pedestal is provided with between described buttress and Seismic Isolation of Isolation Layer top board, tensile device is provided with between described Seismic Isolation of Isolation Layer top board and Seismic Isolation of Isolation Layer base plate, described tensile device comprises upper bracket and the lower bracket of at least one group of corresponding setting, described upper bracket is fixed on Seismic Isolation of Isolation Layer top board, described lower bracket is fixed on Seismic Isolation of Isolation Layer base plate, the lower end of described upper bracket and the upper end of lower bracket are equipped with electromagnet, two pieces of electromagnet corresponding settings at the same level.
Further, described tensile device comprises upper bracket and the lower bracket of the corresponding setting of many groups, the described upper bracket of many groups and the rounded structural configuration of lower bracket.
Further, described upper bracket is L shape structure, comprises vertical component effect and horizontal part; Described lower bracket is inverted L shape structure, comprises vertical component effect and horizontal part.
Further, the horizontal part of described upper bracket is provided with power contacting plate; The vertical component effect of described lower bracket is provided with power contacting plate, and two panels power contacting plate correspondence is arranged, and leaves spacing between two panels power contacting plate.
Further, the spacing between the vertical component effect of described upper bracket and the horizontal part of lower bracket is greater than shock isolating pedestal horizontal shear and is out of shape design maximum value.
Further, the width of described electromagnet is greater than the spacing between the vertical component effect of upper bracket and the horizontal part of lower bracket.
Further, described shock isolating pedestal is rubber earthquake isolation support.
Advantageous Effects of the present invention is:
(1) earthquake isolating equipment of the present invention, by being provided with tensile device, can prevent shock isolating pedestal generation tensile failure, ensures the mechanical property of shock isolating pedestal;
(2) tensile device of the present invention and shock isolating pedestal are separate, and therefore, this tensile device both can be applied to the neoprene bearing tension design of newly-built shock insulation engineering, can be used for again carrying out tension protection to the neoprene bearing of built shock insulation engineering;
(3) structure is simple, clearly stressed, is convenient to realize.
Accompanying drawing explanation
Fig. 1 is the structural representation of earthquake isolating equipment of the present invention;
Fig. 2 is A-A sectional view in Fig. 1;
Fig. 3 is B place enlarged drawing in Fig. 1;
Fig. 4 is the circuit diagram of magnetic effect of electric current in the present invention.
In figure:
1-shock isolating pedestal 2-buttress 3-Seismic Isolation of Isolation Layer top board 4-Seismic Isolation of Isolation Layer base plate
5-upper bracket 6-lower bracket 7-electromagnet 8-power contacting plate
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, it is the structural representation with the earthquake isolating equipment of tensile property provided by the invention, this earthquake isolating equipment comprises Seismic Isolation of Isolation Layer top board 3 and Seismic Isolation of Isolation Layer base plate 4, Seismic Isolation of Isolation Layer base plate 4 is provided with buttress 2, be provided with shock isolating pedestal 1 between buttress 2 and Seismic Isolation of Isolation Layer top board 3, this shock isolating pedestal 1 is rubber earthquake isolation support, and its upper and lower side is fixedly connected with buttress 2 with Seismic Isolation of Isolation Layer top board 3 respectively, thus making total both can bear compressed stress, level is to the effect can playing again shock insulation.Tensile device is provided with between Seismic Isolation of Isolation Layer top board 3 and Seismic Isolation of Isolation Layer base plate 4, this tensile device comprises upper bracket 5 and the lower bracket 6 of at least one group of corresponding setting, upper bracket 5 is fixed on Seismic Isolation of Isolation Layer top board 3, lower bracket 6 is fixed on Seismic Isolation of Isolation Layer base plate 4, the lower end of upper bracket 5 and the upper end of lower bracket 6 are equipped with electromagnet 7, two pieces of electromagnet corresponding settings at the same level.This tensile device can carry the tensile stress of vertical direction, ensures that shock isolating pedestal 1 can not by the destruction of vertical direction tensile stress.In order to ensure the intensity of support, upper bracket 5 and lower bracket 6 all adopt rigid material.
As shown in Figure 1, 2, tensile device comprises upper bracket 5 and the lower bracket 6 of the corresponding setting of many groups, and many group upper bracket and the rounded structural configuration of lower bracket, electromagnet 7 adopts ring electromagnet simultaneously.Many groups upper bracket and lower bracket comprise four groups, five groups or six groups etc.Upper bracket 5 is L shape structure, comprises vertical component effect and horizontal part, and electromagnet is arranged on horizontal part; Lower bracket 6 is inverted L shape structure, and comprise vertical component effect and horizontal part, electromagnet is suspended on horizontal part.It should be noted that, structural shape, the quantity and specification etc. of upper bracket 5 and lower bracket 6 can be determined according to the stressed demand of Practical Project.
As shown in Figure 3, the horizontal part of upper bracket 5 is provided with power contacting plate 8; The vertical component effect of lower bracket 6 is provided with power contacting plate 8, and two panels power contacting plate correspondence is arranged, and leave fine pitch between two panels power contacting plate, the large I of this spacing is determined according to calculating.Two panels power contacting plate 8 is Metal Contact sheet; play power switch effect; when the deformed in tension that shock isolating pedestal 1 occurs exceedes the spacing of two panels power contacting plate 8 setting; two block power supply contact chips 8 will contact; thus switch on power and make two blocks of electromagnet 7 produce two opposing magnetic fields instantaneously; according to magnet homopolar-repulsion principle; the active force that repels each other between two blocks of electromagnet 7 will stop rigid support 5 and support 6 move toward one another; being reached the object of the deformed in tension of restriction aseismatic bearing 1 again by the transmission effect of power, can not there is tensile failure in protection shock isolating pedestal 1.
The present invention ensures that tensile device can not have a negative impact to the horizontal movement of shock isolating pedestal, and the interval S 1 between the vertical component effect of upper bracket 5 and the horizontal part of lower bracket 6 must be greater than shock isolating pedestal 1 horizontal shear and be out of shape design maximum value.When designing, the width S 2 of ring electromagnet 7 should be greater than the interval S 1 between the vertical component effect of upper bracket 5 and the horizontal part of lower bracket 6, and when being out of shape to prevent shock isolating pedestal occurred level, power-on and power-off magnet 7 position deviation is comparatively large, affects repulsion effect.In addition, power contacting plate 8 adopts level to scalable design, makes it be damaged when being out of shape to prevent shock isolating pedestal occurred level.
As shown in Figure 4, be the electrical schematic diagram of magnetic effect of electric current in the present invention.This circuit is connected by two blocks of electromagnet 7, resistance R, electric current A and power contacting plate 8 and is formed primary Ioops, and power contacting plate 8 is equivalent to power switch key, whether is connected by the deformation amount controlling power supply of setting shock isolating pedestal.If need change the amount of force of repelling each other between two blocks of electromagnet 7, the electric current A changed in circuit by adjusting resistance R realizes, and also can be realized by the winding turns in adjustment electromagnet 7.
In sum, the present invention, according to magnetic effect of electric current, innovatively proposes electromagnet technology to be applied to earthquake isolating equipment, makes full use of the principle of electromagnet homopolar-repulsion, prevent neoprene bearing from occurring tensile failure.Use electromagnet homopolar-repulsion principle, can make to there will not be direct contact between main bearing member, friction and hard collision can not be produced, thus can ensure that the horizontal mechanical property of shock isolating pedestal is unaffected.
Electromagnet apparatus in the present invention, only just can switch on power when neoprene bearing deformed in tension exceedes a certain setting limit value generation magnetic pole automatically, plays repulsion effect.The method one is can energy conservation, and two is permanent magnet can be avoided to place for a long time or occur demagnetization phenomenon after using.Tensile device in the present invention, by regulating the current strength in ring electromagnet, adjusts the measures such as annular magnet coil quantity and changes repulsion size, thus can flexible Application in the shock insulation position of the stressed demand of difference.
Earthquake isolating equipment of the present invention is not limited to above-mentioned detailed description of the invention, and those skilled in the art's technical scheme according to the present invention draws and other embodiment belongs to technological innovation scope of the present invention equally.
Claims (7)
1. one kind has the earthquake isolating equipment of tensile property, comprise Seismic Isolation of Isolation Layer top board (3) and Seismic Isolation of Isolation Layer base plate (4), described Seismic Isolation of Isolation Layer base plate (4) is provided with buttress (2), shock isolating pedestal (1) is provided with between described buttress (2) and Seismic Isolation of Isolation Layer top board (3), it is characterized in that: between described Seismic Isolation of Isolation Layer top board (3) and Seismic Isolation of Isolation Layer base plate (4), be provided with tensile device, described tensile device comprises upper bracket (5) and the lower bracket (6) of at least one group of corresponding setting, described upper bracket (5) is fixed on Seismic Isolation of Isolation Layer top board (3), described lower bracket (6) is fixed on Seismic Isolation of Isolation Layer base plate (4), the lower end of described upper bracket (5) and the upper end of lower bracket (6) are equipped with electromagnet (7), two pieces of electromagnet corresponding settings at the same level.
2. there is the earthquake isolating equipment of tensile property as claimed in claim 1, it is characterized in that: described tensile device comprises upper bracket (5) and the lower bracket (6) of the corresponding setting of many groups, the described upper bracket of many groups (5) and lower bracket (6) rounded structural configuration.
3. there is the earthquake isolating equipment of tensile property as claimed in claim 2, it is characterized in that: described upper bracket (5) is L shape structure, comprises vertical component effect and horizontal part; Described lower bracket is inverted L shape structure, comprises vertical component effect and horizontal part.
4. there is the earthquake isolating equipment of tensile property as claimed in claim 3, it is characterized in that: the horizontal part of described upper bracket is provided with power contacting plate; The vertical component effect of described lower bracket is provided with power contacting plate, and two panels power contacting plate correspondence is arranged, and leaves spacing between two panels power contacting plate.
5. the earthquake isolating equipment with tensile property as described in any one of claim 1-4, is characterized in that: the spacing (S1) between the vertical component effect of described upper bracket and the horizontal part of lower bracket is greater than shock isolating pedestal (1) horizontal shear and is out of shape design maximum value.
6. there is the earthquake isolating equipment of tensile property as claimed in claim 5, it is characterized in that: the width (S2) of described electromagnet is greater than the spacing (S1) between the vertical component effect of upper bracket (5) and the horizontal part of lower bracket (6).
7. there is the earthquake isolating equipment of tensile property as claimed in claim 1, it is characterized in that: described shock isolating pedestal (1) is rubber earthquake isolation support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510071280.XA CN104674973B (en) | 2015-02-11 | 2015-02-11 | There is the earthquake isolating equipment of tensile property |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510071280.XA CN104674973B (en) | 2015-02-11 | 2015-02-11 | There is the earthquake isolating equipment of tensile property |
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| CN104674973A true CN104674973A (en) | 2015-06-03 |
| CN104674973B CN104674973B (en) | 2017-03-01 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100289A (en) * | 2017-04-06 | 2017-08-29 | 北京建筑大学 | A kind of shock insulation automatic spacing system |
| CN108360367A (en) * | 2018-02-09 | 2018-08-03 | 石家庄铁道大学 | A kind of antidetonation does not fall bridge pier |
| CN108385510A (en) * | 2018-02-09 | 2018-08-10 | 石家庄铁道大学 | A kind of electromagnetic type bridge earthquake resistance anti-fall girder apparatus |
| CN108660944A (en) * | 2018-07-06 | 2018-10-16 | 重庆三峡学院 | Bridge Rotation Construction Technique method |
| CN109972760A (en) * | 2018-04-27 | 2019-07-05 | 北京工业大学 | Elastic reset resistance to plucking earthquake isolating equipment |
| CN116005814A (en) * | 2023-01-09 | 2023-04-25 | 江苏华泰路桥建设集团有限公司 | Combined limiting device for rubber vibration isolation support |
| CN116556756A (en) * | 2023-05-30 | 2023-08-08 | 中国地震局工程力学研究所 | Pressure-shear combined three-dimensional vibration isolation device |
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| JPH09268800A (en) * | 1996-04-02 | 1997-10-14 | Hitachi Metals Ltd | Seismic isolator |
| DE102008042478A1 (en) * | 2008-09-30 | 2010-04-08 | Gerb Schwingungsisolierungen Gmbh & Co Kg | Method for damping vibrations acting on object to be protected e.g. building, involves partially absorbing static dead weight of vibrating mass by magnetic forces that act between elements of vibration damper |
| CN103046647A (en) * | 2013-01-09 | 2013-04-17 | 北京建筑工程学院 | A round non-contact type protection mechanism for rubber base |
| CN103184749A (en) * | 2013-03-14 | 2013-07-03 | 北京工业大学 | Base isolation non-contact limit system |
| CN103806570A (en) * | 2014-01-29 | 2014-05-21 | 中国航空规划建设发展有限公司 | Anti-torsion integrated shock insulation support anti-tension device |
| CN104110076A (en) * | 2014-06-23 | 2014-10-22 | 同济大学 | Tensile limiting combined type seismic isolation support |
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2015
- 2015-02-11 CN CN201510071280.XA patent/CN104674973B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH09268800A (en) * | 1996-04-02 | 1997-10-14 | Hitachi Metals Ltd | Seismic isolator |
| DE102008042478A1 (en) * | 2008-09-30 | 2010-04-08 | Gerb Schwingungsisolierungen Gmbh & Co Kg | Method for damping vibrations acting on object to be protected e.g. building, involves partially absorbing static dead weight of vibrating mass by magnetic forces that act between elements of vibration damper |
| CN103046647A (en) * | 2013-01-09 | 2013-04-17 | 北京建筑工程学院 | A round non-contact type protection mechanism for rubber base |
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| CN103806570A (en) * | 2014-01-29 | 2014-05-21 | 中国航空规划建设发展有限公司 | Anti-torsion integrated shock insulation support anti-tension device |
| CN104110076A (en) * | 2014-06-23 | 2014-10-22 | 同济大学 | Tensile limiting combined type seismic isolation support |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100289A (en) * | 2017-04-06 | 2017-08-29 | 北京建筑大学 | A kind of shock insulation automatic spacing system |
| CN108360367A (en) * | 2018-02-09 | 2018-08-03 | 石家庄铁道大学 | A kind of antidetonation does not fall bridge pier |
| CN108385510A (en) * | 2018-02-09 | 2018-08-10 | 石家庄铁道大学 | A kind of electromagnetic type bridge earthquake resistance anti-fall girder apparatus |
| CN108360367B (en) * | 2018-02-09 | 2019-06-07 | 石家庄铁道大学 | A kind of antidetonation does not fall bridge pier |
| CN109972760A (en) * | 2018-04-27 | 2019-07-05 | 北京工业大学 | Elastic reset resistance to plucking earthquake isolating equipment |
| CN108660944A (en) * | 2018-07-06 | 2018-10-16 | 重庆三峡学院 | Bridge Rotation Construction Technique method |
| CN116005814A (en) * | 2023-01-09 | 2023-04-25 | 江苏华泰路桥建设集团有限公司 | Combined limiting device for rubber vibration isolation support |
| CN116556756A (en) * | 2023-05-30 | 2023-08-08 | 中国地震局工程力学研究所 | Pressure-shear combined three-dimensional vibration isolation device |
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| CN104674973B (en) | 2017-03-01 |
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