CN109057067A - A kind of attachment device enhancing node energy dissipation capacity - Google Patents
A kind of attachment device enhancing node energy dissipation capacity Download PDFInfo
- Publication number
- CN109057067A CN109057067A CN201810992502.5A CN201810992502A CN109057067A CN 109057067 A CN109057067 A CN 109057067A CN 201810992502 A CN201810992502 A CN 201810992502A CN 109057067 A CN109057067 A CN 109057067A
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- block
- oscillating rod
- arc block
- inner arc
- connecting plate
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- 230000021715 photosynthesis, light harvesting Effects 0.000 title claims abstract description 21
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 238000013016 damping Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Classifications
-
- 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
Abstract
The present invention relates to a kind of attachment devices for enhancing node energy dissipation capacity, attachment device includes the first connecting plate being fixed on crossbeam, the second connecting plate being fixed on column, first special-shaped block, the second special-shaped block, the viscous container being fixed on the second special-shaped block, oscillating rod, first connecting shaft, the second connecting shaft, sliding block；Oscillating rod is rotatably mounted on together by the first connecting shaft and the first special-shaped block, second special-shaped block includes integrally formed inner arc block and connecting plate, connecting plate is arranged on the inner surface of inner arc block, oscillating rod runs through inner arc block and protrudes into the inside of viscous container, viscous oil is equipped in viscous container, oscillating rod is equipped with the through-hole passed through for viscous oil, oscillating rod is equipped with sliding slot, sliding block is slidably placed in the sliding slot of oscillating rod, second connecting shaft runs through sliding block, and the second connecting shaft and inner arc block are pivotally installed together.Attachment device has good damping energy dissipation effect, belongs to the technical field of earthquake-resistant building.
Description
Technical field
The present invention relates to the technical field of earthquake-resistant building more particularly to a kind of attachment devices for enhancing node energy dissipation capacity.
Background technique
High production efficiency, component quality are good, building waste is few, economize on resources and the energy, reality because it has for fabricated construction
The advantages that having showed the Green Development requirement of four sections, one environmental protection is widely applied both at home and abroad.Prefabricated construction is mainly by prefabricated structure
Part and node connect and compose, and interior joint is connected to Force transmission parts important in fabricated construction, it is desirable that its functional, biography
Power is clear, does not destroy under geological process, to guarantee the stability of structure entirety.Therefore, how to guarantee fabricated construction
The performance of node connection is important content in fabricated construction research.
The many scholars of recent domestic have carried out research and analysis to fabricated construction node, and achieve certain grind
Study carefully achievement, but still pay attention to node strength more, and structure global failure mode is influenced on its energy dissipation capacity, the controllable ability of plasticity etc.
Performance study it is less.
Summary of the invention
For the technical problems in the prior art, the object of the present invention is to provide a kind of enhancing node energy dissipation capacities
Attachment device, have good damping energy dissipation effect.
In order to achieve the above object, the present invention adopts the following technical scheme:
A kind of attachment device enhancing node energy dissipation capacity is equipped with the crossbeam to link together with node at node and stands
Column, attachment device include the first connecting plate being fixed on crossbeam, the second connecting plate being fixed on column, the first special-shaped block,
Second special-shaped block, the viscous container being fixed on the second special-shaped block, oscillating rod, the first connecting shaft, the second connecting shaft, sliding block；Pendulum
Lever is rotatably mounted on together by the first connecting shaft and the first special-shaped block, and the second special-shaped block includes integrally formed inner arc block
And connecting plate, connecting plate are arranged on the inner surface of inner arc block, oscillating rod runs through inner arc block and protrudes into the inside of viscous container,
Viscous oil is equipped in viscous container, oscillating rod is equipped with the through-hole passed through for viscous oil, and oscillating rod is equipped with sliding slot, and sliding block is sliding
It is placed in the sliding slot of oscillating rod to dynamic formula, the second connecting shaft runs through sliding block, and the second connecting shaft and inner arc block are pivotally mounted on
Together；One end of first special-shaped block is mutually fixed with the first connecting plate, is stayed between the other end and the second connecting plate of the first special-shaped block
There is gap, one end of inner arc block is mutually fixed with the second connecting plate, and there are gaps between the other end of inner arc block and the first connecting plate.
Further, connecting plate is located at the middle position of inner arc block inner surface, there are two viscous containers, and two viscous
Container is separately fixed at the two sides of connecting plate；Oscillating rod has two, and two oscillating rods are located at the two sides of connecting plate, two pendulum
Lever runs through inner arc block, and the first connecting shaft runs through two oscillating rods, wherein an oscillating rod protrudes into one of them viscous container
Inside, another oscillating rod protrude into the inside of another viscous container；There are two sliding blocks, and one of sliding block is slidably set
In in the wherein sliding slot of an oscillating rod, another sliding block is slidably placed in the sliding slot of another oscillating rod, the second connection
Axis runs through two sliding blocks.
Further, inner arc block is equipped with through-hole and two gap slots, the through-hole and two gap slots on inner arc block are equal
It communicates, the two sides of two gap slot separation connecting plates, wherein an oscillating rod passes through one of gap slot on inner arc block, separately
A piece oscillating rod passes through another gap slot on inner arc block, and the second connecting shaft passes through the through-hole on inner arc block.
Further, the first special-shaped block includes integrally formed outer arc block and two pieces of arcs for being located at outer arc block two sides
Shape baffle is set on outer arc block there are two gap slot, and curved baffle is equipped with hole slot, on the gap slot and curved baffle on outer arc block
Hole slot communicate, inner arc block is located at the inside of outer arc block and is located between two pieces of curved baffles, wherein the end of an oscillating rod
In one of gap slot of outer arc block, the end of another oscillating rod is located in another gap slot of outer arc block, the
One connecting shaft passes through the hole slot on curved baffle.
Further, the opening of viscous container is equipped with sealing strip made of rubber, oscillating rod passes through sealing strip simultaneously
Protrude into the inside of viscous container.
Further, crossbeam is articulatedly mounted on column, column is equipped with hinged-support, and crossbeam is equipped with articulation block,
Articulation block is pivotally mounted on hinged-support.
Further, hinged-support is equipped with connecting rod, connecting rod passes through articulation block.
Generally speaking, the present invention has the advantage that
This attachment device structure is simple, low manufacture cost, is convenient for promoting the use of.Oscillating rod swings viscous in viscous container
Oil plays the effect of viscous energy consumption, and through-hole on oscillating rod and two viscous containers play amplification to viscous damping energy consumption
Effect, to have the effect of better damping energy dissipation, due to being viscous oil, so having the effect of plasticity energy consumption.First connects
Seperated structure can be made in spindle, the second connecting shaft, sliding block with oscillating rod, be easily installed and use.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this attachment device main view direction.
Fig. 2 is crossbeam and the hinged structural schematic diagram of column.
Fig. 3 is the structural schematic diagram of attachment device stereo directional.
Fig. 4 is the explosive view of attachment device.
Fig. 5 is viscous container, oscillating rod, the second special-shaped packaged structural schematic diagram matched.
Fig. 6 be viscous container, oscillating rod, first it is special-shaped it is packaged match after first direction structural schematic diagram.
Fig. 7 be viscous container, oscillating rod, first it is special-shaped it is packaged match after second direction structural schematic diagram.
Fig. 8 is the structural schematic diagram of the first special-shaped block.
Fig. 9 is the structural schematic diagram of the second special-shaped block.
Figure 10 is the structural schematic diagram of viscous container and oscillating rod assembly.
Figure 11 be oscillating rod, the first connecting shaft, the second connecting shaft, sliding block assembly structural schematic diagram.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
It is now attached to what is occurred in Figure of description for the ease of uniformly checking each appended drawing reference inside Figure of description
Icon note is unitedly described as follows:
1 is column, and 2 be crossbeam, and 3 be hinged-support, and 4 be articulation block, and 5 be the first connecting plate, and 6 be the second connecting plate, and 7 be first
Special-shaped block, 8 be the second special-shaped block, and 9 be viscous container, and 10 be oscillating rod, and 11 be sealing strip, and 12 be the first connecting shaft, and 13 be the
Two connecting shafts, 14 be sliding block, and 7-1 is outer arc block, and 7-2 is curved baffle, and 7-3 is the gap slot on outer arc block, and 7-4 is arc gear
Hole slot on plate, 8-1 are inner arc block, and 8-2 is connecting plate, and 8-3 is the gap slot on inner arc block, and 8-4 is the through-hole on inner arc block,
10-1 is the sliding slot of oscillating rod.
For sake of convenience, now hereafter described orientation is described as follows: hereafter described front-rear direction up and down and Fig. 1
The orientation of the projection of itself is consistent, and hereafter the orientation where the center of circle of described inside, that is, inner arc block or outer arc block is interior.
As shown in connection with fig. 2, there is node in fabricated wall body structure, be equipped with the cross to link together with node at node
Beam and column, node are the tie points of crossbeam and column.In conjunction with shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of enhancing section of the invention
The attachment device of point energy dissipation capacity, attachment device includes the first connecting plate being fixed on crossbeam, second be fixed on column
Connecting plate, the first special-shaped block, the second special-shaped block, the viscous container being fixed on the second special-shaped block, oscillating rod, the first connecting shaft,
Second connecting shaft, sliding block.Flat first connecting plate is fixed on the upper surface of crossbeam, and flat second connecting plate is fixed on
The right side of column, the second connecting plate are placed vertically.Oscillating rod by upper right side turn left inclined downward setting, oscillating rod pass through first
Connecting shaft is rotatably mounted on together with the first special-shaped block, and oscillating rod and the first connecting shaft can relatively rotate, oscillating rod and the
One special-shaped block can relatively rotate.In conjunction with shown in Fig. 5, Fig. 9, the second special-shaped block includes integrally formed inner arc block and connecting plate,
Connecting plate is arranged on the inner surface of inner arc block, and from main view direction (from front to back), inner arc block is one section of circular arc, interior
Width is greater than connecting plate width in the front-back direction to arc block in the front-back direction.In conjunction with shown in Fig. 5, Figure 10, oscillating rod from passing through inside outside
It wears inner arc block and protrudes into the inside of viscous container, the upper right quarter of oscillating rod runs through inner arc block, and the lower left quarter of oscillating rod protrudes into viscous
In container；It is equipped with viscous oil in viscous container, oscillating rod is equipped with the through-hole passed through for viscous oil, these through-holes are from oscillating rod
Left side be through to the right side of oscillating rod.In conjunction with shown in Figure 10, Figure 11, oscillating rod is equipped with sliding slot, in oscillating rod upper right
The position in portion opens up a sliding slot, and sliding block is slidably placed in the sliding slot of oscillating rod, and sliding block can slide in sliding slot.First
Connecting shaft runs through the top of oscillating rod from front to back, and the second connecting shaft runs through sliding block from front to back, and the second connecting shaft connects first
The lower section of spindle, the second connecting shaft and inner arc block are pivotally installed together, and the second connecting shaft can be rotated with opposing slider, the
Two connecting shafts can be rotated relative to inner arc block.In conjunction with shown in Fig. 1, Fig. 2, Fig. 3, one end (lower end) of the first special-shaped block connects with first
Fishplate bar is mutually fixed, and there are gap between the other end (upper end) and the second connecting plate of the first special-shaped block, one end of inner arc block is (left
End) it is mutually fixed with the second connecting plate, there are gaps between the other end (lower end) of inner arc block and the first connecting plate.Viscous container and
All there are gaps for first connecting plate and the second connecting plate, so that viscous container will not touch first during damping energy dissipation
Connecting plate and the second connecting plate, inner arc block will not touch the first connecting plate, and the outer arc block and curved baffle of the first special-shaped block are not
The second connecting plate can be touched.
Connecting plate is located at the middle position of inner arc block inner surface, and it is one that connecting plate and inner arc block, which are integrally formed,
It is whole.In conjunction with shown in Fig. 3, Fig. 5, Fig. 6, Fig. 7, there are two viscous containers, and two viscous containers are separately fixed at the two of connecting plate
Side, a viscous container are fixed on the front end face of connecting plate, another viscous container is fixed on the rear end face of connecting plate.In conjunction with figure
3, shown in Fig. 5, Fig. 6, Fig. 7, Figure 10, oscillating rod has two, and two oscillating rods are located at the two sides of connecting plate, an oscillating rod
Before connecting plate, another oscillating rod is located at behind connecting plate.In conjunction with shown in Fig. 3, Fig. 5, Figure 10, Figure 11, two
Oscillating rod runs through inner arc block, and the first connecting shaft runs through two oscillating rods from front to back, wherein an oscillating rod (swing for front
Bar) inside of one of them viscous container (the viscous container of front) is protruded into, another oscillating rod (subsequent oscillating rod) is protruded into
The inside of another viscous container (subsequent viscous container).There are two sliding blocks, one of them (front) sliding block is slidably set
In in the wherein sliding slot of (front) oscillating rod, another (back) sliding block is slidably placed in another (back) oscillating rod
Sliding slot in, the second connecting shaft extends vertically through two sliding blocks from front to back.
In conjunction with shown in Fig. 3, Fig. 4, Fig. 5, inner arc block is equipped with through-hole and two gap slots, the through-hole on inner arc block and two
Gap slot communicates, and the axis of hole slot is horizontal and from front to back, the two sides of two gap slots separation connecting plates, from vertical view side
It looks up, a gap slot is located at before connecting plate, another gap slot is located at behind connecting plate.Wherein one (front)
Oscillating rod passes through one of them (front) gap slot on inner arc block, and another oscillating rod (back) passes through another on inner arc block
A (back) gap slot, the second connecting shaft pass through the through-hole on inner arc block.The inner wall at gap slot on oscillating rod and inner arc block
There are enough gaps, the end of the first connecting shaft is located in hole slot.
In conjunction with shown in Fig. 6, Fig. 7, Fig. 8, the first special-shaped block includes integrally formed outer arc block and is located at outer arc block two
Two pieces of curved baffles of side, outer arc block are located at the outside of inner arc block, and one of curved baffle is located at the front side of outer arc block, another
Block curved baffle is located at the rear side of outer arc block, and curved baffle is placed vertically.It is set on outer arc block there are two gap slot, on curved baffle
Equipped with hole slot, the axis of hole slot be it is horizontal and from front to back, the hole slot on gap slot and curved baffle on outer arc block communicates,
The two sides of two gap slot separation connecting plates, inner arc block are located at the inside of outer arc block and are located between two pieces of curved baffles, i.e., two
Block curved baffle is lived apart the front and rear sides of inner arc block, wherein the upper-end part of driving of (front) oscillating rod is in wherein the one of outer arc block
In a (front) gap slot, the upper-end part of driving of another (back) oscillating rod in another (back) gap slot of outer arc block,
First connecting shaft passes through the hole slot on curved baffle.First connecting shaft sequentially pass through hole slot on curved baffle, oscillating rod it is upper
Hole slot on end, curved baffle.First connecting shaft and oscillating rod are seperated structures, in this way can be in order to by outer arc block and pendulum
Lever is connected by the first connecting shaft.There are enough gaps for the inner wall at gap slot on oscillating rod and outer arc block.
The opening of viscous container is equipped with sealing strip made of rubber, and oscillating rod passes through sealing strip and protrudes into viscous container
Inside.
As shown in connection with fig. 2, crossbeam is articulatedly mounted on column, and column is equipped with hinged-support, and crossbeam is equipped with articulation block,
Articulation block is pivotally mounted on hinged-support.Hinged-support is equipped with connecting rod, and connecting rod passes through articulation block.
A kind of working principle of the attachment device of enhancing node energy dissipation capacity of the invention: when an earthquake occurs, crossbeam and
Relative displacement or relative rotation occur for column, then force the first special-shaped block and the second special-shaped block that relative displacement occurs, second is special-shaped
The shaking of block will drive viscous container and shake, while oscillating rod being forced to swing in viscous container, viscous due to having in viscous container
Stagnant oil, oscillating rod swing viscous oil in viscous container, play the effect of viscous energy consumption, and oscillating rod is equipped with through-hole, viscous
Oil is worn to wear in the through-hole of oscillating rod, while there are two viscous containers, plays enlarge-effect to viscous damping energy consumption, from
And has the effect of better damping energy dissipation.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (7)
1. a kind of attachment device for enhancing node energy dissipation capacity, the crossbeam and column to link together with node is equipped at node,
It is characterized by: attachment device includes the first connecting plate being fixed on crossbeam, and the second connecting plate being fixed on column, first
Special-shaped block, the second special-shaped block, the viscous container being fixed on the second special-shaped block, oscillating rod, the first connecting shaft, the second connecting shaft,
Sliding block；Oscillating rod is rotatably mounted on together by the first connecting shaft and the first special-shaped block, and the second special-shaped block includes integrally formed
Inner arc block and connecting plate, connecting plate is arranged on the inner surface of inner arc block, and oscillating rod is through inner arc block and protrudes into viscous appearance
The inside of device, viscous container is interior to be equipped with viscous oil, and oscillating rod is equipped with the through-hole passed through for viscous oil, and oscillating rod is equipped with cunning
Slot, sliding block are slidably placed in the sliding slot of oscillating rod, and the second connecting shaft runs through sliding block, the second connecting shaft and inner arc block rotary type
Ground is installed together；One end of first special-shaped block is mutually fixed with the first connecting plate, the other end of the first special-shaped block and the second connection
There are gap between plate, one end of inner arc block is mutually fixed with the second connecting plate, between the other end of inner arc block and the first connecting plate
There are gaps.
2. a kind of attachment device for enhancing node energy dissipation capacity described in accordance with the claim 1, it is characterised in that: connecting plate is located at
The middle position of inner arc block inner surface, there are two viscous containers, and two viscous containers are separately fixed at the two sides of connecting plate；Pendulum
Lever has two, and two oscillating rods are located at the two sides of connecting plate, and two oscillating rods run through inner arc block, and the first connecting shaft is passed through
Two oscillating rods are worn, wherein an oscillating rod protrudes into the inside of one of them viscous container, another oscillating rod protrudes into another
The inside of viscous container；There are two sliding blocks, and one of sliding block is slidably placed in one in the sliding slot of an oscillating rod, another
A sliding block is slidably placed in the sliding slot of another oscillating rod, and the second connecting shaft runs through two sliding blocks.
3. a kind of attachment device for enhancing node energy dissipation capacity according to claim 2, it is characterised in that: set on inner arc block
There are through-hole and two gap slots, the through-hole and two gap slots on inner arc block communicate, and the two of two gap slot separation connecting plates
Side, wherein an oscillating rod passes through one of gap slot on inner arc block, another oscillating rod passes through another on inner arc block
A gap slot, the second connecting shaft pass through the through-hole on inner arc block.
4. a kind of attachment device for enhancing node energy dissipation capacity described in accordance with the claim 1, it is characterised in that: the first special-shaped block
Including integrally formed outer arc block and two pieces of curved baffles of outer arc block two sides are located at, set that there are two notches on outer arc block
Slot, curved baffle are equipped with hole slot, and the hole slot on gap slot and curved baffle on outer arc block communicates, and inner arc block is located at outer arc block
Inside and be located between two pieces of curved baffles, wherein the end of an oscillating rod is located at one of gap slot of outer arc block
Interior, the end of another oscillating rod is located in another gap slot of outer arc block, and the first connecting shaft passes through the hole on curved baffle
Slot.
5. a kind of attachment device for enhancing node energy dissipation capacity described in accordance with the claim 1, it is characterised in that: viscous container
Opening is equipped with sealing strip made of rubber, and oscillating rod passes through sealing strip and protrudes into the inside of viscous container.
6. a kind of attachment device for enhancing node energy dissipation capacity described in accordance with the claim 1, it is characterised in that: crossbeam radial type
Ground is mounted on column, and column is equipped with hinged-support, and crossbeam is equipped with articulation block, and articulation block is pivotally mounted on hinged-support.
7. a kind of attachment device for enhancing node energy dissipation capacity described in accordance with the claim 1, it is characterised in that: set on hinged-support
There is connecting rod, connecting rod passes through articulation block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810992502.5A CN109057067A (en) | 2018-08-29 | 2018-08-29 | A kind of attachment device enhancing node energy dissipation capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810992502.5A CN109057067A (en) | 2018-08-29 | 2018-08-29 | A kind of attachment device enhancing node energy dissipation capacity |
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| Publication Number | Publication Date |
|---|---|
| CN109057067A true CN109057067A (en) | 2018-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810992502.5A Pending CN109057067A (en) | 2018-08-29 | 2018-08-29 | A kind of attachment device enhancing node energy dissipation capacity |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203487662U (en) * | 2013-09-29 | 2014-03-19 | 东南大学 | Rotary type output force enlarging device of viscous damper |
| CN204081128U (en) * | 2014-09-03 | 2015-01-07 | 上海史狄尔建筑减震科技有限公司 | A kind of viscous damping wall |
| JP2015232226A (en) * | 2014-06-10 | 2015-12-24 | 株式会社大林組 | Column-beam joining structure of structure |
| CN106567457A (en) * | 2016-11-10 | 2017-04-19 | 同济大学 | Energy dissipation beam column joint for building steel structure |
| CN106760848A (en) * | 2016-12-22 | 2017-05-31 | 广州大学 | A kind of damper for house bean column node |
| CN208918053U (en) * | 2018-08-29 | 2019-05-31 | 广州大学 | A kind of amplifying type viscous damper |
-
2018
- 2018-08-29 CN CN201810992502.5A patent/CN109057067A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203487662U (en) * | 2013-09-29 | 2014-03-19 | 东南大学 | Rotary type output force enlarging device of viscous damper |
| JP2015232226A (en) * | 2014-06-10 | 2015-12-24 | 株式会社大林組 | Column-beam joining structure of structure |
| CN204081128U (en) * | 2014-09-03 | 2015-01-07 | 上海史狄尔建筑减震科技有限公司 | A kind of viscous damping wall |
| CN106567457A (en) * | 2016-11-10 | 2017-04-19 | 同济大学 | Energy dissipation beam column joint for building steel structure |
| CN106760848A (en) * | 2016-12-22 | 2017-05-31 | 广州大学 | A kind of damper for house bean column node |
| CN208918053U (en) * | 2018-08-29 | 2019-05-31 | 广州大学 | A kind of amplifying type viscous damper |
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Application publication date: 20181221 |