CN106639473A - Adjustable-rigidity particle shock absorber used for high-rise civil structure - Google Patents
Adjustable-rigidity particle shock absorber used for high-rise civil structure Download PDFInfo
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- CN106639473A CN106639473A CN201611254570.9A CN201611254570A CN106639473A CN 106639473 A CN106639473 A CN 106639473A CN 201611254570 A CN201611254570 A CN 201611254570A CN 106639473 A CN106639473 A CN 106639473A
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- particle
- damping
- rigidity
- civil structure
- damper
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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
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- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses an adjustable-rigidity particle shock absorber used for a high-rise civil structure, and relates to a shock absorber. The adjustable-rigidity particle shock absorber is provided with an outer frame box, a particle damping box, damping particles, high-rigidity damping springs and low-rigidity damping springs. The adjustable-rigidity particle shock absorber used for the high-rise civil structure is connected with the high-rise civil structure through fixing bolts or is directly poured on a damping part when a concrete structure is poured. The outer frame box is connected with the particle damping box through adjustable-rigidity damping springs formed by the high-rigidity damping springs and the low-rigidity damping springs in a matched mode; and the damping particles are placed in the particle damping box. The adjustable-rigidity particle shock absorber does not need external energy supply, is simple and easy to install and convenient and quick in maintain, and has good economy and universality.
Description
Technical field
The present invention relates to damper, more particularly, to a kind of high-rise civil structure adjustable rigidity particle damper.
Background technology
Traditional structure anti-seismic technology has that safety of structure is difficult to ensure that, adaptability is restricted, economy is not good enough and repaiies
A series of problems, such as again difficulty is big.The maximum shortcoming of undonded prestressed concrete system is the design of associated components and each shock-damping structure
Calculating all must be very accurate, and this is extremely difficult in engineering practice；The damping effect of Interlayer seismic isolation is poor, shock insulation effect
Rate about 10%～30%.Existing displacement type damper cannot be used for wind force proofing design due to metal fatigue problem；Velocity profile hinders
The energy-dissipating structure of Buddhist nun's damper, because the viscid force component in active force cannot be calculated directly so that the internal force meter of structural elements
It is sufficiently complex.
Particle damping is a passive vibration control new technology, is with damping energy dissipation mechanism as theoretical foundation, mainly
Damping effect is provided by the particle being filled in structural cavities by inelastic collision and rubbing action.Particle damping has
Inhibition of vibration significantly, high temperature resistant adverse circumstances, original structure is changed additional mass that is little, producing it is little the advantages of.Particle damping
Mechanism of production refers to the ability of loss vibrational energy in the angle of energy, that is, by mechanical oscillation and the energy of sound and vibration
Amount, is transformed into heat energy or other energy that can consume.Particle damping is introduced into building field of shock absorption can extend top
The natural vibration period of structure simultaneously gives structure larger damping, effectively replaces superstructure to bear the strong displacement power of earthquake, consumes
Scattered seismic energy, is particularly well-suited to build damping.
Chinese patent CN1624264A discloses a kind of device for civil engineering structure antivibration (shake), and the damper will be interior
The cavity that outer steel tube place surrounds is divided into three parts, and middle chamber is fluid damper, and two ends cavity is lead damper.In interior steel pipe
Left end be fixed with left junction steel plate (1), right-hand member is fixed with limiting plate (10), and in the endoporus of outer steel pipe right-hand member inner sealed board is provided with
(17), between left chamber body dividing plate (4) and outer steel tube head plate and interior steel pipe of right chamber body dividing plate (19) and inner sealed board between
On be respectively fixed with left ellipsoid projection (3) and right ellipsoid projection (20).It is outward perfusion lead (13) in ellipsoid projection (3) and (20)；
Seal (5) and perfusing hole (7) are provided with the middle part of the outer wall of outer steel pipe, motion valve (16), motion valve are welded with interior steel pipe
(16) there is fluid line (15) in, be perfusion fluid (6) between left chamber body dividing plate and right chamber body dividing plate.
The content of the invention
It is an object of the invention to provide a kind of high-rise civil structure adjustable rigidity particle damper.
The present invention is provided with external frame case, particle damping case, damping particle, big rigidity damping spring, little rigidity damping bullet
Spring；The high-rise civil structure adjustable rigidity particle damper is connected or is being poured by fixing bolt with high-rise civil structure
Directly it is cast on damping position during xoncrete structure；External frame case is by big rigidity damping spring and little rigidity damping spring
It is connected with being combined into stiffness variable damping spring and damping case with particle, damping particle is placed in particle damping case inside.
The damping particle can adopt antifriction metal (AFM), wear-resisting nonmetallic or wear-resistant macromolecule material, damp the particle diameter of particle
Can be 0.5～30mm, damping particle section horizontal projected area accounts for the 20%～90% of the respective partition gross area, damps particle
Density can be 1.5～18.5 × 103kg/m3。
The particle damping case inside can use steel plate partition into some subspaces, and a number of resistance is placed in subspace
Buddhist nun's particle；Particle damping case can adopt thickness to be welded for the corrosion resistant plate of 4mm.
The stiffness coefficient of the big rigidity damping spring can be 500～1500kg/cm, the little rigidity damping spring it is firm
Degree coefficient can be 20～500kg/cm.
When shaking, particle damping case drives spring that mechanical energy is converted into elastic potential energy and is dissipated, while internal
Damping particle collides the further dissipative system vibration energy of friction.Because particle has universal property, can effectively to from
Damping is played a part of in the vibrations of all directions.Using variation rigidity damping spring can effectively mitigate wind shake and earthquake zone come shake
It is dynamic.
When high-rise civil structure vibration induced by wind, the civil structure displacement that wind load is caused is less, is known by formula f=kx,
The damper displacement x that civil structure drives if the coefficient of stiffiness k of damping spring is excessive also can be less, then cannot play
The cushioning effect of effect.Therefore, in order to effectively mitigate wind shake, then the little damping springs of coefficient of stiffiness k should be adopted, so that damper can
To produce larger displacement, damping particle is set effectively to play cushioning effect.But when there is earthquake, in order to reach " big shake
Do not fall, no damage in small earthquake " requirement, then the coefficient of stiffiness k of damping spring should be made as far as possible big.If if coefficient of stiffiness k is little, by
Formula f=kx knows that the damper displacement x that earthquake drives is excessive, can exceed the elastic limit of damping spring and be allowed to recover
Drift, prevents the damper being connected with damping spring from producing reciprocating motion, greatly reduces the performance of damper damping.
The stiffness coefficient of big rigidity damping spring should be chosen in the range of 500～1500kg/cm, the stiffness coefficient of little rigidity damping spring
Should choose in the range of 20～500kg/cm.As big rigidity damping spring is not selected in the range of above-mentioned stiffness coefficient, then can not
Effective cushioning effect is played to earthquake；If little rigidity damping spring is not selected in the range of above-mentioned stiffness coefficient, can not be to wind
Shake and play effective cushioning effect.The damping spring of the same side arrangement different-stiffness takes symmetrical mode to arrange when combining.
It is an advantage of the current invention that：The particle damping shock absorption technology for being mainly used in mechanical vibration damping field is applied into high level
In the damping of civil structure, have the advantages that damping bandwidth and energy dissipation are fast, especially with the damping bullet of variation rigidity
Effective damping effect is played in spring, the two distinct types of vibrations of the wind shake and earthquake that can be faced for civil structure, can be effective
Vibrations mechanical energy is converted into the elastic potential energy of interparticle friction energy-dissipating and spring.Without the need for external energy supply, install simple
It is easy, it is easy to maintenance quick, with good economy and universality.
Description of the drawings
Fig. 1 is the profilograph of the embodiment of the present invention.
Fig. 2 is the sectional view of bowing of the embodiment of the present invention.
Fig. 3 is the side view of the embodiment of the present invention.
Fig. 4 is the sectional view that particle damps case.
Fig. 5 is an example of the practice of the present invention in skyscraper.
Specific embodiment
As shown in Fig. 1～5, the embodiment of the present invention is provided with external frame case 1, particle damping case 2, damping particle 3, big rigidity
Damping spring 4, little rigidity damping spring 5；The high-rise civil structure with adjustable rigidity particle damper by fixing bolt with
High-rise civil structure is connected or is directly cast on damping position in casting concrete structure；External frame case is by big rigidity
Damping spring 4 and little rigidity damping spring 5 are matched somebody with somebody to be combined into stiffness variable damping spring and damp case with particle and are connected, particle damping
Place damping particle 3 in the inside of case 2.
The damping particle 3 can adopt antifriction metal (AFM), wear-resisting nonmetallic or wear-resistant macromolecule material, damp the grain of particle 3
Footpath can be 0.5～30mm, and the damping section horizontal projected area of particle 3 accounts for the 20%～90% of the respective partition gross area, damps grain
The density of son 3 can be 1.5～18.5 × 103kg/m3。
The inside of particle damping case 2 can use steel plate partition into some subspaces, place a number of in subspace
Damping particle 3.
The stiffness coefficient of the big rigidity damping spring can be 500～1500kg/cm, the little rigidity damping spring it is firm
Degree coefficient can be 20～500kg/cm.
External frame case 1 is steel, is fixed on target shock-damping structure by fixing bolt, or carries out concreting
When be directly cast in target damping position.Fix according to bolt, then frictional high-strength bolts are selected in suggestion.Case is damped in particle
2 top and surrounding arrange big rigidity damping spring 4, the little rigidity damping spring 5 of stiffness variable.It is big rigidity damping spring 4, little
Rigidity damping spring 5 is connected with external frame case 1.When building structure shakes, civil structure drives external frame case 1
Shake, make big rigidity damping spring 4, the little rigidity damping spring 5 between connection external frame case 1 and particle damping case 2
Generation elastic deformation, by the mechanical energy that vibrations are produced the elastic potential energy of spring is converted into, at the same big rigidity damping spring 4, it is little just
Degree damping spring 5 drive particle damping case 2 in damping particle 3 shake, further will vibrations mechanical energy by damping particle it
Between Friction dissipation.Particle damping case 2 is that the corrosion resistant plate by thickness for 4mm is welded, and size determines according to actual conditions, figure
In to the separation mode that particle is damped inside case 2 be only one kind in practice, should be according to the concrete feelings of engineering during practice
Determine after condition simulation calculation.The damping antifriction metal (AFM) of particle 3, wear-resisting nonmetallic or wear-resistant macromolecule material, selected particle diameter 0.5～
Between 30mm, different particles and mix and match, the damping horizontal projected area of particle 3 accounts for the 20%～90% of respective regions, density
It is set to 1.5～18.5 × 103kg/m3.The stiffness coefficient of big rigidity damping spring 4 should be selected in the range of 500～1500kg/cm
Take, the stiffness coefficient of little rigidity damping spring 5 should be chosen in the range of 20～500kg/cm.The same side arrangement different-stiffness subtracts
Symmetrical mode is taken to arrange during shake spring assembly.When building meets with wind shake, there is elastic deformation in little rigidity damping spring 5,
Effectively mitigate building vibrations；When there is earthquake, there is elastic deformation in big rigidity damping spring 4, can effectively mitigate civil structure
Vibrations.
In Fig. 5, mark A represents high-rise civil structure adjustable rigidity particle damper of the present invention.
Claims (9)
1. high-rise civil structure adjustable rigidity particle damper, it is characterised in that be provided with external frame case, particle damping case, resistance
Buddhist nun's particle, big rigidity damping spring, little rigidity damping spring；The high-rise civil structure adjustable rigidity particle damper passes through
Fixing bolt is connected with high-rise civil structure or is directly cast on damping position in casting concrete structure；External frame case
Match somebody with somebody to be combined into stiffness variable damping spring and damp case with particle by big rigidity damping spring and little rigidity damping spring and be connected,
Place damping particle in particle damping case inside.
2. as claimed in claim 1 high level civil structure adjustable rigidity particle damper, it is characterised in that the damping particle
Using antifriction metal (AFM), wear-resisting nonmetallic or wear-resistant macromolecule material.
3. the high-rise civil structure adjustable rigidity particle damper as described in claim 1 or 3, it is characterised in that the damping grain
The particle diameter of son is 0.5～30mm.
4. as claimed in claim 1 high level civil structure adjustable rigidity particle damper, it is characterised in that the damping particle
Section horizontal projected area accounts for the 20%～90% of the respective partition gross area.
5. as claimed in claim 1 high level civil structure adjustable rigidity particle damper, it is characterised in that the damping particle
Density be (1.5～18.5) × 103kg/m3。
6. as claimed in claim 1 high level civil structure adjustable rigidity particle damper, it is characterised in that the particle damping
Case inside steel plate partition places damping particle into some subspaces, in subspace.
7. as claimed in claim 1 high level civil structure adjustable rigidity particle damper, it is characterised in that the particle damping
Case adopts thickness and is welded for the corrosion resistant plate of 4mm.
8. as claimed in claim 1 high level civil structure adjustable rigidity particle damper, it is characterised in that the big rigidity subtracts
The stiffness coefficient of shake spring is 500～1500kg/cm.
9. as claimed in claim 1 high level civil structure adjustable rigidity particle damper, it is characterised in that the little rigidity subtracts
The stiffness coefficient of shake spring is 20～500kg/cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611254570.9A CN106639473B (en) | 2016-12-30 | 2016-12-30 | Rigidity-adjustable particle shock absorber for high-rise civil structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611254570.9A CN106639473B (en) | 2016-12-30 | 2016-12-30 | Rigidity-adjustable particle shock absorber for high-rise civil structure |
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| Publication Number | Publication Date |
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| CN106639473A true CN106639473A (en) | 2017-05-10 |
| CN106639473B CN106639473B (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611254570.9A Active CN106639473B (en) | 2016-12-30 | 2016-12-30 | Rigidity-adjustable particle shock absorber for high-rise civil structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442552A (en) * | 2018-04-24 | 2018-08-24 | 同济大学 | The non-linear hybrid energy dissipation re-centring damper of three-dimensional |
| CN110528949A (en) * | 2019-08-12 | 2019-12-03 | 同济大学 | A kind of multiple energy consumption collision type tuned mass damper |
| CN113236007A (en) * | 2021-05-24 | 2021-08-10 | 西京学院 | Rigidity-adjustable particle shock absorber for high-rise civil structure |
| CN114526308A (en) * | 2022-02-22 | 2022-05-24 | 江苏科技大学 | Low-frequency vibration reduction structure of spring-containing damping type dynamic vibration absorber based on photonic crystal |
| CN116085413A (en) * | 2022-11-28 | 2023-05-09 | 中国舰船研究设计中心 | Particle vibration damper, method for manufacturing same, and vibration damper system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05133139A (en) * | 1991-11-12 | 1993-05-28 | Fujita Corp | Damping device having sound insulating layer |
| CN103015554A (en) * | 2012-12-08 | 2013-04-03 | 北京工业大学 | Three-dimensional seismic isolation device for being closely attached to cross part of subway |
| CN104594519A (en) * | 2015-01-13 | 2015-05-06 | 同济大学 | Bidirectional variable stiffness particle tuned quality damper |
| CN105350673A (en) * | 2015-09-24 | 2016-02-24 | 同济大学 | Non-linear particle impact damper |
| CN205475805U (en) * | 2016-03-21 | 2016-08-17 | 同济大学 | Novel harmonious mass damper of material granule |
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2016
- 2016-12-30 CN CN201611254570.9A patent/CN106639473B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05133139A (en) * | 1991-11-12 | 1993-05-28 | Fujita Corp | Damping device having sound insulating layer |
| CN103015554A (en) * | 2012-12-08 | 2013-04-03 | 北京工业大学 | Three-dimensional seismic isolation device for being closely attached to cross part of subway |
| CN104594519A (en) * | 2015-01-13 | 2015-05-06 | 同济大学 | Bidirectional variable stiffness particle tuned quality damper |
| CN105350673A (en) * | 2015-09-24 | 2016-02-24 | 同济大学 | Non-linear particle impact damper |
| CN205475805U (en) * | 2016-03-21 | 2016-08-17 | 同济大学 | Novel harmonious mass damper of material granule |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442552A (en) * | 2018-04-24 | 2018-08-24 | 同济大学 | The non-linear hybrid energy dissipation re-centring damper of three-dimensional |
| CN110528949A (en) * | 2019-08-12 | 2019-12-03 | 同济大学 | A kind of multiple energy consumption collision type tuned mass damper |
| CN113236007A (en) * | 2021-05-24 | 2021-08-10 | 西京学院 | Rigidity-adjustable particle shock absorber for high-rise civil structure |
| CN113236007B (en) * | 2021-05-24 | 2022-12-02 | 西京学院 | Rigidity-adjustable particle shock absorber for high-rise civil structure |
| CN114526308A (en) * | 2022-02-22 | 2022-05-24 | 江苏科技大学 | Low-frequency vibration reduction structure of spring-containing damping type dynamic vibration absorber based on photonic crystal |
| CN116085413A (en) * | 2022-11-28 | 2023-05-09 | 中国舰船研究设计中心 | Particle vibration damper, method for manufacturing same, and vibration damper system |
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| CN106639473B (en) | 2022-09-27 |
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