CN105863096A - Combined vibration reduction and insulation device - Google Patents
Combined vibration reduction and insulation device Download PDFInfo
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- CN105863096A CN105863096A CN201610249433.XA CN201610249433A CN105863096A CN 105863096 A CN105863096 A CN 105863096A CN 201610249433 A CN201610249433 A CN 201610249433A CN 105863096 A CN105863096 A CN 105863096A
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- shaped steel
- isolator
- antivibrator
- deformation
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- 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)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to a combined vibration reduction and insulation device. The combined vibration reduction and insulation device comprises a vibration insulator, a U-shaped steel damper and fixing bolts, wherein the vibration insulator is generally formed by a low-damping rubber bearing, and is used for separating an upper structure from a foundation; the U-shaped steel damper is fixed on the vibration isolator through the fixing bolts. When the upper structure suffers from the action of an earthquake, because the horizontal stiffness of the vibration isolator is small, a main structure and the foundation produce mutual deformation through the vibration isolator, and then the deformation is transmitted to the U-shaped steel damper, so that large plasticity deformation is produced; therefore, the deformation of the vibration isolator can be controlled through the autologous plasticity deformation of the U-shaped steel damper, and besides, the earthquake energy is consumed. According to the combined vibration reduction and insulation device, the vibration isolator and the U-shaped steel form an organic whole, jointly act and jointly dissipate the earthquake energy.
Description
Technical field
The present invention relates to a kind of combination seismic isolation device, including isolator, U-shaped steel antivibrator and fixing bolt.U-shaped steel antivibrator is fixed on isolator, when earthquake acts in structure, owing to isolator horizontal rigidity is smaller, agent structure and ground produce phase enantiotropy by isolator, the most this displacement transfer is on U-shaped steel antivibrator, make it produce bigger plastic deformation, so can be controlled the deformation earthquake energy simultaneously of isolator by the plastic deformation of U-shaped steel antivibrator self.Belong to civil structure (including skyscraper, tall and slender structure and bridge structure etc.) vibration control field.
Background technology
Isolation structure is a kind of simply for the method for designing of earthquake disaster reduction, and the method is to weaken, by the shock isolation system of one low-level rigidity of insertion between structure and ground, the seismic wave that the horizontal component of surface movement causes.Present many vibrating isolation systems, such as high-damping rubber bearing and sliding unit are widely used by earthquake prone areas all over the world.Most widely used vibrating isolation system is to be made up of, including hydraulic damper and metal damper low resistance rubber shaft bearing and the damping of some different types of machines.The former is used to separate superstructure and ground, and the latter is deformation and the earthquake energy controlling vibrating isolation system.
Energy consumption equipment is critically important to the dissipation of shock-insulation building Deformation control in shock isolation system and seismic energy.U-shaped steel antivibrator (also referred to as U-shaped antivibrator) is dissipated energy by the plastic deformation of the U-shaped steel damper elements of particular design, is generally used as shock-damping device in vibrating isolation system.Such equipment may be mounted on rubber shaft bearing, or is arranged on other plurality of positions of shock isolation system.Damping ratio with the shock isolation system of U-shaped antivibrator can meet the requirement of design well.Since nineteen ninety-five Kobe violent earthquake, U-shaped antivibrator in Japan is widely used in polytype shock-insulation building, such as hospital, factory floor and residential block etc..After east of Japan violent earthquake in 2011, the shock-insulation building of U-shaped antivibrator has severely damaged report not to have any one to be mounted with, even in the most serious impacted area, this proves that they have preferable plastic deformation ability.
During earthquake, it is to fix ground due to top vibrating isolation system and bottom to create relative motion that U-shaped steel antivibrator bears random load.Based on different earthquakes and the feature of soil, this relative motion potentially includes the most hundreds of millimeter or continues for an extended period of time the large-amplitude oscillation of (a few minutes).Therefore the steel antivibrator of shock isolation system must have sufficiently strong plastic deformation ability, to such an extent as to they will not be failed during strong ground motion or aftershock.
Summary of the invention
For utilizing the plastic deformation of U-shaped steel antivibrator to the seismic energy that dissipates, thus in practical engineering application, play it reduce isolator deformation and by the effect of plastic deformation dissipation seismic energy, it is an object of the invention to provide a kind of combination seismic isolation device, this device is by isolator and U-shaped steel antivibrator reasonable combination, form organic whole, common effect, it is possible to reduce isolator deformation is simultaneously by plastic deformation dissipation seismic energy, and then can reduce structural response further.Simple structure of the present invention, energy-dissipating and shock-absorbing are effective.
To achieve these goals, the present invention adopts the following technical scheme that.
A kind of combination seismic isolation device that the present invention proposes, including isolator 1, U-shaped steel antivibrator 2 and fixing bolt 3, isolator 1 is made up of low resistance rubber shaft bearing, if being i.e. made up of folder rubber layer in the middle of dried layer steel plate, even dried layer steel plate is symmetrically distributed in rubber layer two-layer, being positioned at outside the steel plate that steel plate one end of top and bottom stretches out in other layer, described Seismic Isolation of Isolation Layer, between superstructure and ground, is used for separating superstructure and ground；The two ends of described U-shaped steel antivibrator 2 are fixed on by fixing bolt inside the steel plate of isolator top and bottom respectively；When superstructure suffers geological process, owing to isolator horizontal rigidity is smaller, superstructure and ground produce phase enantiotropy by isolator, this mutual displacement transfer is on U-shaped steel antivibrator, it is made to produce bigger plastic deformation, the deformation of isolator, earthquake energy simultaneously is controlled by the plastic deformation of U-shaped steel antivibrator self.
In the present invention, described U-shaped steel antivibrator 2 uses shaped steel, described shaped steel to have enough plastic deformation abilities and a stable yield strength, and described U-shaped steel antivibrator 2 is made up of clod wash and then it is carried out heat treatment process.
Compared with prior art, advantages of the present invention is as follows:
1) U-shaped its loading velocity of steel antivibrator and initial temperature employed in the present invention do not have much affect (rigidity in each load cycle, maximum weighted and energy dissipating) to the delayed behavior of U-shaped antivibrator.
2) shape of the U-shaped steel antivibrator hysteresis loop employed in the present invention is little affected by the impact of its size.
3) the low-cycle fatigue feature than under dead weight under high speed dynamic load effect of the U-shaped steel antivibrator employed in the present invention is more preferable.
4) structural form of the present invention is simple, U-shaped steel antivibrator in this combination seismic isolation device can be made the most flexible relative to location arrangements with isolator according to the feature of basic structure, it is adaptable to the Deformation control of large-scale bridge support system.
Accompanying drawing explanation
Fig. 1 is that the present invention combines seismic isolation device front elevation view；
Fig. 2 is that the present invention combines U-shaped steel antivibrator front elevation view in seismic isolation device；
Fig. 3 is that the present invention combines U-shaped steel antivibrator top view in seismic isolation device；
Label in figure: isolator 1, U-shaped steel antivibrator 2, fixing bolt 3.
Detailed description of the invention
Describe the detailed description of the invention of the present invention below in conjunction with the accompanying drawings in detail.
Embodiment 1: such as Fig. 1, shown in 2,3, for a kind of combination seismic isolation device embodiment of the present invention, it mainly includes isolator 1, U-shaped steel antivibrator 2, fixing bolt 3.
This combination seismic isolation device is generally arranged in the support system of large bridge.This combination seismic isolation device includes isolator 1, U-shaped steel antivibrator 2, fixing bolt 3.Isolator 1 is typically made up of low resistance rubber shaft bearing, is made up of folder rubber layer in the middle of laminated steel plate, is used for separating superstructure and ground.U-shaped steel antivibrator 2 is made up of shaped steel, and this shaped steel has enough plastic deformation abilities and stable yield strength.Special U-shaped steel antivibrator 2 is made up of clod wash and then it is carried out heat treatment.Described U-shaped steel antivibrator 2 is fixed on the upper of isolator by fixing bolt 3, when earthquake acts in structure, owing to the horizontal rigidity of isolator is smaller, agent structure and ground produce phase enantiotropy by isolator, the most this displacement transfer is on U-shaped steel antivibrator, make it produce bigger plastic deformation, so can be controlled the deformation earthquake energy simultaneously of isolator by the plastic deformation of U-shaped steel antivibrator self.In this combination seismic isolation device, isolator forms organic whole with U-shaped steel antivibrator, jointly acts on, and dissipate seismic energy jointly.Structural form of the present invention is simple, U-shaped steel antivibrator can be made the most flexible with the relative location arrangements of isolator according to the feature of basic structure, it is adaptable to the Deformation control of large-scale bridge support system.
Claims (2)
1. a combination seismic isolation device, it is characterized in that including isolator (1), U-shaped steel antivibrator (2) and fixing bolt (3), isolator (1) is made up of low resistance rubber shaft bearing, if being i.e. made up of folder rubber layer in the middle of dried layer steel plate, even dried layer steel plate is symmetrically distributed in rubber layer two-layer, being positioned at outside the steel plate that steel plate one end of top and bottom stretches out in other layer, described Seismic Isolation of Isolation Layer, between superstructure and ground, is used for separating superstructure and ground；The two ends of described U-shaped steel antivibrator (2) are fixed on by fixing bolt inside the steel plate of isolator top and bottom respectively；When superstructure suffers geological process, owing to isolator horizontal rigidity is smaller, superstructure and ground produce phase enantiotropy by isolator, this mutual displacement transfer is on U-shaped steel antivibrator, it is made to produce bigger plastic deformation, the deformation of isolator, earthquake energy simultaneously is controlled by the plastic deformation of U-shaped steel antivibrator self.
A kind of combination seismic isolation device the most according to claim 1, it is characterized in that: described U-shaped steel antivibrator (2) uses shaped steel, described shaped steel has enough plastic deformation abilities and stable yield strength, and described U-shaped steel antivibrator (2) is made up of clod wash and then it is carried out heat treatment process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610249433.XA CN105863096A (en) | 2016-04-21 | 2016-04-21 | Combined vibration reduction and insulation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610249433.XA CN105863096A (en) | 2016-04-21 | 2016-04-21 | Combined vibration reduction and insulation device |
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| CN105863096A true CN105863096A (en) | 2016-08-17 |
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| CN201610249433.XA Pending CN105863096A (en) | 2016-04-21 | 2016-04-21 | Combined vibration reduction and insulation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704761A (en) * | 2017-01-24 | 2017-05-24 | 东南大学 | Multi-dimensional viscoelastic vibration isolation and reduction device for pipeline structure |
| CN106894666A (en) * | 2017-02-20 | 2017-06-27 | 东南大学 | A kind of U-shaped steel plate viscoplasticity is every damping device |
| CN110805201A (en) * | 2019-11-21 | 2020-02-18 | 大连交通大学 | Replaceable coupling beam with dual energy consumption capability |
| CN111945911A (en) * | 2020-07-20 | 2020-11-17 | 北京工业大学 | Detachable U-shaped corrugated steel plate damper with double-layer oblique seam |
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| JP2006104883A (en) * | 2004-10-08 | 2006-04-20 | Prologis:Kk | Base-isolated building |
| CN102535670A (en) * | 2012-01-19 | 2012-07-04 | 东南大学 | Composite lamination rubber-annular steel bar quake-isolating device |
| CN204266112U (en) * | 2014-11-26 | 2015-04-15 | 成都市新筑路桥机械股份有限公司 | A kind of U-shaped damper bearing shock-damping structure |
| CN105297619A (en) * | 2015-10-19 | 2016-02-03 | 沈阳建筑大学 | Improved support seat with functions of energy consumption, and seismic mitigation and isolation |
-
2016
- 2016-04-21 CN CN201610249433.XA patent/CN105863096A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006104883A (en) * | 2004-10-08 | 2006-04-20 | Prologis:Kk | Base-isolated building |
| CN102535670A (en) * | 2012-01-19 | 2012-07-04 | 东南大学 | Composite lamination rubber-annular steel bar quake-isolating device |
| CN204266112U (en) * | 2014-11-26 | 2015-04-15 | 成都市新筑路桥机械股份有限公司 | A kind of U-shaped damper bearing shock-damping structure |
| CN105297619A (en) * | 2015-10-19 | 2016-02-03 | 沈阳建筑大学 | Improved support seat with functions of energy consumption, and seismic mitigation and isolation |
Non-Patent Citations (4)
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| （美）康斯坦丁诺等著；陈永祁，马良喆译: "《桥梁地震保护系统》", 30 June 2012, 北京：中国铁道出版社 * |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704761A (en) * | 2017-01-24 | 2017-05-24 | 东南大学 | Multi-dimensional viscoelastic vibration isolation and reduction device for pipeline structure |
| CN106894666A (en) * | 2017-02-20 | 2017-06-27 | 东南大学 | A kind of U-shaped steel plate viscoplasticity is every damping device |
| CN106894666B (en) * | 2017-02-20 | 2019-05-31 | 东南大学 | A kind of U-shaped steel plate-viscoplasticity is every damping device |
| CN110805201A (en) * | 2019-11-21 | 2020-02-18 | 大连交通大学 | Replaceable coupling beam with dual energy consumption capability |
| CN111945911A (en) * | 2020-07-20 | 2020-11-17 | 北京工业大学 | Detachable U-shaped corrugated steel plate damper with double-layer oblique seam |
| CN111945911B (en) * | 2020-07-20 | 2022-03-11 | 北京工业大学 | Detachable U-shaped corrugated steel plate damper with double-layer oblique seam |
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Application publication date: 20160817 |