CN108222309A - A kind of comb formula damper and design method - Google Patents
A kind of comb formula damper and design method Download PDFInfo
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- CN108222309A CN108222309A CN201810215016.2A CN201810215016A CN108222309A CN 108222309 A CN108222309 A CN 108222309A CN 201810215016 A CN201810215016 A CN 201810215016A CN 108222309 A CN108222309 A CN 108222309A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000001154 acute effect Effects 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 15
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 230000035939 shock Effects 0.000 description 1
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Classifications
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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
Abstract
A kind of comb formula damper and design method, the present invention relates to comb formula damper and design methods.The present invention is in order to solve the problems, such as that existing damper surrender evening, yield displacement is big and yield force Setup Cost is high.The present invention includes：Upper plate, bottom plate and one group of damper knob item of square crossing and one group of damper draw rack；Upper plate and bottom plate are arranged in parallel, and the one group of damper knob item and one group of damper that square crossing is set between upper plate and bottom plate draw rack；One group of damper knob item is arranged in parallel, and one end of damper knob item is arranged in damper knob upper grooves, and the other end is arranged in damper knob lower recess, and damper knob item is 45 degree of angles with the acute angle that bottom plate is formed；One group of damper draws rack to be arranged in parallel, and it is 45 degree of angles that damper, which draws the acute angle of rack and bottom plate formation,；It is drawn in each damper knob item and damper and is centrally located necking segment on rack.The present invention is used for building aseismicity field.
Description
Technical field
The present invention relates to building aseismicity fields, more particularly to comb formula damper and design method.
Background technology
With the raising of economic level, after people require building construction experience geological process, can neither be given birth to caused by collapsing
Life loss also not occur seriously to destroy so that causing the heavy losses of property.Newest aseismic theory is pointed out, advanced by installing
Device promote the damping (a kind of to characterize the how many parameter of earthquake energy) of building structure and can effectively promote building structure
Shock resistance, to reach the target of protection life and property.However existing damper mechanics parameter is bad, it is inefficient,
It is badly in need of developing limited cost but the better damper of parameter.
Invention content
The purpose of the present invention is to solve existing damper surrender evening, yield displacement is big and yield force Setup Cost is high
The shortcomings that, and propose a kind of comb formula damper and design method.
A kind of comb formula damper includes：Upper plate, bottom plate and one group of damper knob item of square crossing and one group of damping
Device draws rack；
Upper plate and bottom plate are arranged in parallel, between upper plate and bottom plate set square crossing one group of damper knob item and one group
Damper draws rack；
Damper knob upper grooves are arranged in parallel in upper plate lower surface and damper draws rack upper grooves, bottom plate upper table
Face sets damper knob lower part corresponding with damper knob upper grooves and damper drawing rack upper grooves respectively
Groove and damper draw rack lower recess；
One group of damper knob item is arranged in parallel, and one end of damper knob item is arranged on damper knob upper grooves
Interior, the other end is arranged in damper knob lower recess, and damper knob item is 45 degree of angles with the acute angle that bottom plate is formed；
One group of damper draws rack to be arranged in parallel, and damper draws one end of rack to be arranged on damper and draws rack upper grooves
Interior, the other end is arranged on damper and draws in rack lower recess, and it is 45 degree of angles that damper, which draws the acute angle of rack and bottom plate formation,；
It is drawn in each damper knob item and damper and is centrally located necking segment on rack.
A kind of design method of comb formula damper includes the following steps：
Step 1：According to rack material yield strength fyWith rack necking segment ultimate strength fb, obtain rack necking segment section
Product A1With non-necking segment sectional area A0Ratio γ；
Step 2：Obtain rack and bottom plate or the angle, θ of upper plate；
Wherein F contributes for actuator, N0For rack axle power；
The acute angle and damper that the corresponding θ when F is maximized, as damper knob item are formed with bottom plate draw tooth
The acute angle that item is formed with bottom plate；
Step 3：The rack necking segment sectional area A obtained according to step 11With non-necking segment sectional area A0Ratio γ and
The design angle theta of the rack that step 2 obtains and bottom plate or upper plate obtains the comb formula damper.
Beneficial effects of the present invention are：
The present invention solves the problems, such as that existing damper surrender evening and yield displacement are big, and damper yield force tune of the present invention
It is whole at low cost, find that steel hysteresis damper maximum output is about 16.5kN by comparing two damper 0.4mm operating modes；The present invention
Comb formula damper maximum output is about 22.5kN.Under 0.8mm operating modes, steel hysteresis damper maximum output is about 25.5kN；This
Invention comb formula damper maximum output is about 39.0kN.Under two operating modes, comb formula damper of the present invention consumes energy than steel hysteresis damper
More 3 times.
Description of the drawings
Fig. 1 is damper schematic diagram of the present invention；
Fig. 2 is damper knob item (drawing rack) front view；
Fig. 3 is damper knob item (drawing rack) side view；
Fig. 4 is damper knob stress diagram；
Fig. 5 draws rack stress diagram for damper；
Fig. 6 is knob item (drawing rack) front schematic view；
Fig. 7 is knob item (drawing rack) side schematic view；
Corresponding hysteresis loop figure when Fig. 8 is 0.2mm-0.05Hz；
Corresponding hysteresis loop figure when Fig. 9 is 0.4mm-0.05Hz；
Corresponding hysteresis loop figure when Figure 10 is 0.6mm-0.05Hz；
Corresponding hysteresis loop figure when Figure 11 is 0.8mm-0.05Hz；
Corresponding hysteresis loop figure when Figure 12 is 1.0mm-0.05Hz；
Corresponding hysteresis loop figure when Figure 13 is 1.4mm-0.05Hz；
Corresponding hysteresis loop figure when Figure 14 is 1.8mm-0.05Hz；
Corresponding hysteresis loop figure when Figure 15 is 2.4mm-0.05Hz；
Corresponding hysteresis loop figure when Figure 16 is 3.0mm-0.05Hz；
Figure 17 is damper skeleton curve；
The hysteresis loop figure of steel hysteresis damper when Figure 18 is 0.4mm-0.05Hz；
The hysteresis loop figure of steel hysteresis damper when Figure 19 is 0.8mm-0.05Hz；
Figure 20 is damper pictorial diagram.
Specific embodiment
Specific embodiment one：As shown in Fig. 1-Fig. 3, a kind of comb formula damper includes：Upper plate 1, bottom plate 2 and vertical
The one group of damper knob item 3 and one group of damper intersected draws rack 4；
Upper plate 1 and bottom plate 2 are arranged in parallel, and one group of damper knob item 3 of square crossing is set between upper plate 1 and bottom plate 2
Rack 4 is drawn with one group of damper；
3 upper grooves of damper knob item are arranged in parallel in 1 lower surface of upper plate and damper draws 4 upper grooves of rack, bottom plate 2
Upper surface sets damper knob corresponding with 3 upper grooves of damper knob item and damper drawing 4 upper grooves of rack respectively
3 lower recess of item and damper draw 4 lower recess of rack；
One group of damper knob item 3 is arranged in parallel, and one end of damper knob item 3 is arranged on 3 top of damper knob item
In groove, the other end is arranged in 3 lower recess of damper knob item, and the acute angle that damper knob item 3 is formed with bottom plate 2 is
45 degree of angles；
One group of damper draws rack 4 to be arranged in parallel, and damper draws one end of rack 4 to be arranged on damper and draws 4 top of rack
In groove, the other end is arranged on damper and draws in 4 lower recess of rack, and the acute angle that damper draws rack 4 to be formed with bottom plate 2 is
45 degree of angles；
It is drawn in each damper knob item 3 and damper and is centrally located necking segment 5 on rack 4.
Specific embodiment two：The present embodiment is different from the first embodiment in that：The necking segment 5 is by each resistance
The recess that Buddhist nun's device knob item 3 and damper draw former and later two end faces of rack 4 to be equipped with is formed；Or the necking segment 5 is by each resistance
The recess that Buddhist nun's device knob item 3 and damper draw the end face of left and right two of rack 4 to be equipped with is formed.
Other steps and parameter are same as the specific embodiment one.
Specific embodiment three：The present embodiment is different from the first and the second embodiment in that：The recess is perforation
Damper knob item draws the groove of rack width direction or the recess to be perforation damper knob item or draw spline thicknesses side
To groove.
Other steps and parameter are the same as one or two specific embodiments.
Specific embodiment four：Unlike one of present embodiment and specific embodiment one to three：The necking segment 5
Length 1st/1 to eight/10ths of 4 length of rack is drawn for damper knob item 3 or damper.
Other steps and one of parameter and specific embodiment one to three are identical.
Specific embodiment five：Unlike one of present embodiment and specific embodiment one to four：The necking segment 5
Smallest cross-section area 0.6~0.7 times of 4 cross-sectional area of rack is drawn for damper knob item 3 or damper.
Other steps and one of parameter and specific embodiment one to four are identical.
Specific embodiment six：Unlike one of present embodiment and specific embodiment one to five：The damper
It is Q355 steel that knob item 3 and damper, which draw the material of rack 4,.
Other steps and one of parameter and specific embodiment one to five are identical.
Specific embodiment seven：Unlike one of present embodiment and specific embodiment one to six：The damper
Knob item 3 is more than or equal to 8.
Other steps and one of parameter and specific embodiment one to six are identical.
Specific embodiment eight：Unlike one of present embodiment and specific embodiment one to seven：The damper
Rack 4 is drawn to be more than or equal to 8.
Other steps and one of parameter and specific embodiment one to seven are identical.
Specific embodiment nine：A kind of design method of comb formula damper includes the following steps：
As shown in Figure 4 and Figure 5, when upper plate to the right when, rack BC is pressurized, and C points have nose-up tendency, rack DE tensions, E points
There is downward trend, upper plate is caused the rolling of lower-left upper right occur.Under actual boundary constraints, this rolling will not occur, C
Point and E points are only translatable.Simultaneously according to horizontal direction stress balance equation, actuator is contributedIts
Middle n is compression rack quantity, m is tension rack quantity.
Existing damper section checking：As shown in Figure 6 and Figure 7, the long l=85mm of rack, intermediate necking down segment length δ=10mm,
Each side length b in the normal section of rack is 10mm, bottleneck section A1=6 × 10=60mm2；Area ratioRack is bent
Take intensity fy=260MPa, ultimate strength fb=340MPa；Damper is drawn, each 10 of knob item.
(1) if bottom plate is fixed, top plate horizontal reciprocating movement.When damper knob item (3) and damper draw rack (4)
Be under pressure NyAfterwards, necking segment is first surrendered, it is assumed that necking segment sectional area 10mm × 6mm=60mm2, non-necking segment sectional area 10mm
× 10mm=100mm2, then, single rack axle power Ny=fy×A1=260 × 106Pa×60mm2=15.6kN, damper pressure
Rack (3) and damper draw the section stress of rack (4) non-necking segmentfyFor tooth
Steel yield strength, A1For necking segment area of section, A0Rack (4) non-necking segment is drawn for damper knob item (3) and damper
Area of section；
(2) work as NyWhen continuing to increase, necking segment enters strain by yielding stage, when bottleneck stress reaches capacity intensity fb
When, corresponding axle power Nb=fb×A1=340 × 106Pa×60mm2=20.4kN, fbFor the ultimate strength of rack steel, damper pressure at this time
Rack (3) and damper draw the section stress of rack (4) non-necking segment
Not up to yield strength.Since non-necking segment stress from 156MPa increases to 204MPa during this, only length accounting is very
Small necking segment surrender, damper energy consumption cannot reach best.At this moment each magnitude relationship calculates as follows.This hour rack total deformation
For
D=d1+d0=δ εb+(l-δ)·σ0/E
=10 × 0.1+ (85-10) 204/2.06 × 105=1+0.07=1.07mm
D in formula1For necking segment deflection, d0For non-necking segment deflection, δ is necking down segment length, εbFor the rack steel limit
The corresponding strain of intensity, l are rack length, and E is the elasticity modulus of rack steel.Due to the folder between rack and upper plate and lower plate
Angle is 45 °, so upper plate and lower plate are with respect to D=d/cos45 °=1.41 × 1.07=1.51mm of alternate displacement.Per toothed rack axis
Power is 20.4kN, the horizontal thrust Q=N between corresponding upper plate and lower plateb/ cos45 °=20.4/0.707=28.8kN.
(3) perfect condition of comb formula damper reaches capacity intensity f for rack necking segmentb95% when, non-necking segment is firm
It surrenders, stress reaches fy, such necking segment stress state is near ultimate strength, while non-necking segment also enters surrender
State, damper energy consumption are most preferable.Each magnitude relationship calculates as follows at this time.
Necking segment is equal with non-necking segment axle power,
Ny=fyA0=Nb=0.95fbA1=260MPa × 100mm2=26.0kN
Horizontal thrust between upper plate and lower plate
Q=Nb/ cos45 °=26.0/0.707=36.8kN
Optimum cross section area ratio
Rack total deformation
Upper plate and lower plate are with respect to alternate displacement
Step 1：According to rack material yield strength fyWith rack necking segment ultimate strength fb, obtain rack necking segment section
Product A1With non-5 sectional area A of necking segment0Ratio γ；
Step 2：According to non-5 sectional area A of necking segment0And σb, obtain the angle of rack and bottom plate or upper plate；
N0=σb×A0=335 × 106Pa×100mm2=33.5kN
Wherein F contributes for actuator, N0For rack axle power；
The acute angle and damper that the corresponding θ when F is maximized, as damper knob item 3 are formed with bottom plate 2 are drawn
The acute angle that rack 4 is formed with bottom plate 2；
Step 3：The 5 sectional area A of rack necking segment obtained according to step 11With non-necking segment sectional area A0Ratio γ and
The design angle theta of the rack that step 2 obtains and bottom plate or upper plate obtains the comb formula damper.
Beneficial effects of the present invention are verified using following embodiment：
Embodiment one：
The plumpness of hysteresis loop is to weigh the good and bad leading indicator of damper performance.Now with damper upper plate and
Alternate displacement between lower plate indicates operating mode, and single rack parameter is same as above, the damper of test draws rack and knob item each 10
Root.Using 244.41 type dynamic actuator of U.S. MTS carried out 0.2mm, 0.4mm, 0.6mm, 0.8mm, 1.0mm, 1.4mm,
The pseudo static testing of 1.8mm, 2.4mm, 3.0mm totally 9 kinds of operating modes.The corresponding hysteresis loop of each secondary operating mode is as shown in Fig. 8-Figure 16.
Displacement in figure refers to the single peak of mutual changing of the relative positions amount between damper upper plate and lower plate, and the frequency in figure refers to that completing one follows
Inverse the time required to ring.Damper pictorial diagram is as shown in figure 20.
Even if as a result showing upper plate and lower plate with respect to alternate displacement as low as 0.2mm, damper of the present invention also has preferable consumption
Energy ability, alternate displacement is bigger, and energy consumption is more notable.Damper of the present invention has the advantages that the early, big energy-consuming that consumes energy.
Analysis of experimental data：
Data show that the horizontal thrust between the corresponding upper and lower plates of 3.0mm-0.05Hz operating mode hysteresis loops is 57.3kN,
Maximum displacement is 2.57mm.This experimental result can be evaluated in this way：First, in the case that displacement is little, hysteresis loop is very
It is full, illustrate that damper energy dissipation capacity is very strong；Second, the horizontal thrust between upper and lower plates shows tooth much smaller than calculated value
Item should also have more partially soft flexural deformation in addition to axial deformation occurs, that is to say, that rack is simultaneously with axial and bending
Deformation energy consumption.
According to mechanics of materials basic knowledge it is found that the flexural deformation of rod piece is much larger than axial deformation under same active force.Water
Prosposition move as 2.57mm be damper upper plate and the mutual alternate displacement of lower plate summation, both the axial deformation comprising rack or included
The flexural deformation of rack.The specific magnitude of axial deformation and flexural deformation can be analyzed now.It is single with reference to figure 4 and Fig. 5
The axial force N and cross force T of rack be：45 °=57.3/20 × 0.707=2.02kN of T=N=Qcos.Rack axial deformation
Amount：The corresponding horizontal changing of the relative positions amount of axial deformation
Rack lateral bending deformation amount：
I therein is the cross sectional moment of inertia of rack cross section.The corresponding horizontal changing of the relative positions amount of flexural deformation
Total horizontal changing of the relative positions amount The reason of bigger than 2.57mm is：Calculating only
The deformation of knob item is considered, and draws rack that will provide effect of contraction at this time, is madeIt reduces to 2.57mm.
With calculation shows that axial deformation energy consumption and flexural deformation energy consumption occur simultaneously for rack, this is also that the damper is excellent for experiment
A more main cause of property.
The mechanics parameter of damper includes yield force, yield displacement, elastic stiffness and surrender rigidity, these ginsengs identified below
Several calculating process.
Damper yield force QyCalculating：
Enable fy=260MPa, then corresponding rack end cross power when single rack root bending is surrendered
W is rack module of anti-bending section in formula.Horizontal thrust (yield force) between corresponding upper plate and lower plate：
Qy=Ty/ cos45 °=720.9N
If with 20 toothed rack, initial yield power
The calculating of yield displacement：
Damper stiffness calculates：
Figure 17 can be as the Rigidity Calculation foundation of the damper with 20 toothed racks.
Initial stiffness K1=52.0kN/mm
Post-yield stiffness K2=3.4kN/mm
Comb formula damper is compared with steel hysteresis damper hysteresis loop：
Steel hysteresis damper and comb formula damper are displacement type damper, and the turgor of hysteresis loop is directly related to
Damper consumes energy.Figure 18 and Figure 19 is the hysteresis loop figure of 0.4mm operating modes and 0.8mm operating mode steel hysteresis dampers.
Find that steel hysteresis damper maximum output is about 16.5kN by comparing two damper 0.4mm operating modes；Comb formula damps
Device maximum output is about 22.5kN.Under 0.8mm operating modes, steel hysteresis damper maximum output is about 25.5kN；Comb formula damper
Maximum output is about 39.0kN.Under two operating modes, comb formula damper is than 3 times of steel hysteresis damper big energy-consuming.
The present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, this field
Technical staff makes various corresponding changes and deformation in accordance with the present invention, but these corresponding changes and deformation should all belong to
The protection domain of appended claims of the invention.
Claims (9)
1. a kind of comb formula damper, it is characterised in that：The comb formula damper includes：Upper plate (1), bottom plate (2) and vertical friendship
One group of damper knob item (3) of fork and one group of damper draw rack (4)；
Upper plate (1) and bottom plate (2) are arranged in parallel, and one group of damper knob of square crossing is set between upper plate (1) and bottom plate (2)
Item (3) and one group of damper draw rack (4)；
Damper knob item (3) upper grooves are arranged in parallel in upper plate (1) lower surface and damper draws rack (4) upper grooves, bottom
Plate (2) upper surface setting resistance corresponding with damper knob item (3) upper grooves and damper drawing rack (4) upper grooves respectively
Buddhist nun's device knob item (3) lower recess and damper draw rack (4) lower recess；
One group of damper knob item (3) is arranged in parallel, and one end of damper knob item (3) is arranged on damper knob item (3)
In portion's groove, the other end is arranged in damper knob item (3) lower recess, and damper knob item (3) is formed with bottom plate (2)
Acute angle is 45 degree of angles；
One group of damper draws rack (4) to be arranged in parallel, and damper draws one end of rack (4) to be arranged on damper and draws on rack (4)
In portion's groove, the other end is arranged on damper and draws in rack (4) lower recess, and damper draws what rack (4) was formed with bottom plate (2)
Acute angle is 45 degree of angles；
It is drawn in each damper knob item (3) and damper and is centrally located necking segment (5) on rack (4).
2. a kind of comb formula damper according to claim 1, it is characterised in that：The necking segment (5) is by each damper
The recess that knob item (3) and damper draw former and later two end faces of rack (4) to be equipped with is formed；Or the necking segment (5) is by each
The recess that damper knob item (3) and damper draw the end face of left and right two of rack (4) to be equipped with is formed.
3. a kind of comb formula damper according to claim 2, it is characterised in that：The recess is perforation damper knob item
Or it is perforation damper knob item or the groove in drawing spline thicknesses direction to draw the groove of rack width direction or the recess.
4. a kind of comb formula damper according to claim 3, it is characterised in that：The length of the necking segment (5) is damping
Device knob item (3) or damper draw 1st/1 to eight/10ths of rack (4) length.
5. a kind of comb formula damper according to claim 4, it is characterised in that：The minimum cross-section of the necking segment (5)
Product draws 0.6~0.7 times of rack (4) cross-sectional area for damper knob item (3) or damper.
6. a kind of comb formula damper according to claim 5, it is characterised in that：The damper knob item (3) and damping
It is Q355 steel that device, which draws the material of rack (4),.
7. a kind of comb formula damper according to claim 6, it is characterised in that：The damper knob item (3) more than etc.
In 8.
8. a kind of comb formula damper according to claim 7, it is characterised in that：The damper draw rack (4) more than etc.
In 8.
9. a kind of design method of comb formula damper described in claim 1, it is characterised in that：A kind of comb formula damper is set
Meter method includes the following steps：
Step 1：According to rack material yield strength fyWith rack necking segment (5) ultimate strength fb, obtain rack necking segment (5) and cut
Area A1With non-necking segment sectional area A0Ratio γ；
Step 2：Obtain rack and bottom plate or the angle, θ of upper plate；
Wherein F contributes for actuator, N0For rack axle power；
The acute angle and damper that the corresponding θ when F is maximized, as damper knob item (3) are formed with bottom plate (2) are drawn
The acute angle that rack (4) is formed with bottom plate (2)；
Step 3：Rack necking segment (5) the sectional area A obtained according to step 11With non-necking segment (5) sectional area A0Ratio γ
The design angle theta of the rack obtained with step 2 and bottom plate or upper plate obtains the comb formula damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810215016.2A CN108222309A (en) | 2018-03-15 | 2018-03-15 | A kind of comb formula damper and design method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810215016.2A CN108222309A (en) | 2018-03-15 | 2018-03-15 | A kind of comb formula damper and design method |
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| Publication Number | Publication Date |
|---|---|
| CN108222309A true CN108222309A (en) | 2018-06-29 |
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ID=62659580
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810215016.2A Pending CN108222309A (en) | 2018-03-15 | 2018-03-15 | A kind of comb formula damper and design method |
Country Status (1)
| Country | Link |
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| CN (1) | CN108222309A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203440942U (en) * | 2013-07-30 | 2014-02-19 | 武汉理工大学 | Parallel-type graded yielding buckling-restrained energy dissipation support |
| CN104631641A (en) * | 2014-12-18 | 2015-05-20 | 东南大学 | Yield-adjustable X-brace energy dissipation device |
| CN208056369U (en) * | 2018-03-15 | 2018-11-06 | 防灾科技学院 | A kind of comb formula damper |
-
2018
- 2018-03-15 CN CN201810215016.2A patent/CN108222309A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203440942U (en) * | 2013-07-30 | 2014-02-19 | 武汉理工大学 | Parallel-type graded yielding buckling-restrained energy dissipation support |
| CN104631641A (en) * | 2014-12-18 | 2015-05-20 | 东南大学 | Yield-adjustable X-brace energy dissipation device |
| CN208056369U (en) * | 2018-03-15 | 2018-11-06 | 防灾科技学院 | A kind of comb formula damper |
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