CN110130710A - Rod-type negative stiffness device - Google Patents
Rod-type negative stiffness device Download PDFInfo
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- CN110130710A CN110130710A CN201910347464.2A CN201910347464A CN110130710A CN 110130710 A CN110130710 A CN 110130710A CN 201910347464 A CN201910347464 A CN 201910347464A CN 110130710 A CN110130710 A CN 110130710A
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- channel steel
- pulley
- outside plate
- inner panel
- plate
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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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- Engineering & Computer Science (AREA)
- 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 belongs to the negative stiffness field of vibration control of architectural engineering cushion technique, a kind of rod-type negative stiffness device is provided, including H profile steel outside plate, channel steel inner panel, pulley guide rod, steel strand wires, channel steel pulley etc., horizontal output power is converted by the pretension of prestress wire using channel steel pulley and arc orbit plate.When pulley guide rod is in the circular arc highest point of arc orbit plate, pretension is stored in steel strand wires.When applying displacement excitation in H profile steel outside plate end, H profile steel outside plate is protruding, the minimum point of pulley guide rod towards arc orbit plate moves at this time, the pretension of prestress wire discharges, H profile steel outside plate moves to displacement excitation direction and generates active force identical with displacement excitation direction, and then provides negative stiffness for structure.The present apparatus is arranged in the structure in a manner of arranging bearing diagonal, by providing the rigidity that negative stiffness reduces structure for structure, to realize the vibration control of structure.
Description
Technical field
The present invention relates to the new structure vibration control fields of architectural engineering technology, more particularly to a kind of rod-type negative stiffness
Device.
Background technique
Negative stiffness device is mainly used in the vibration isolation of mechanical device, is seldom applied in building structure aseismatic field.It is negative rigid
Spending device in new builing structure vibration isolation field is a kind of new type of component.The negative stiffness device having proposed at present mainly has spring
Negative stiffness device and electromagnetic type negative stiffness device, but spring negative stiffness device is a kind of large-tonnage dress that can provide negative stiffness
It sets, but displacement stroke is insufficient, and takes up a large area, and arranges not flexible；Electromagnetic type negative stiffness device has biggish displacement stroke
But tonnage is insufficient, it is difficult to which commensurate structure installation needs.Furthermore the negative stiffness component form for being best suited for structure installation is rod-type
Component, but currently without the big stroke rod-type negative stiffness device of large-tonnage that can provide negative stiffness.
Summary of the invention
It is an object of the present invention to overcome the deficiencies of the prior art and provide one kind, the processing is simple, cost is relatively low, can provide
The big stroke rod-type negative stiffness device of large-tonnage of variable negative stiffness.
In order to achieve the above objectives, the present invention provides the following technical scheme that
A kind of rod-type negative stiffness device, including H profile steel outside plate, channel steel inner panel, pulley guide rod, steel strand wires, channel steel pulley, branch
Seat pulley, track end plate；
A channel steel inner panel, the front and back wing of the H profile steel outside plate is respectively arranged in the two sides up and down of the web of the H profile steel outside plate
The circular arc restraining plate for the evagination being arranged in pairs is installed, the circular arc restraining plate is located at the channel steel inner panel on the inside of edge
Front and rear sides, and clamp the channel steel inner panel；
Several symmetrically arranged channel steel pulleys, each channel steel pulley point are installed on the outside of the front and back edge of a wing of the channel steel inner panel
It is not corresponding with a steel strand wires, and the steel strand wires are pressed on the channel steel pulley；The left and right ends of the H profile steel outside plate are equal
It is provided with ribbed stiffener, the both ends of the steel strand wires are anchored in respectively on the ribbed stiffener of the left and right ends of the H profile steel outside plate, and are had
There is certain prestressing force and is fixed with anchoring end；
The upper and lower ends of the web of the H profile steel outside plate are mounted on several arc orbit plates, and the arc orbit plate
The center of circle towards the web of the H profile steel outside plate；It constitutes between the web and two edges of a wing of the channel steel inner panel along the channel steel
The groove of inner panel length direction, the channel steel inner panel being located above are fovea superior groove profile, and underlying channel steel inner panel is recessed groove profile；
The web of the channel steel inner panel is being provided with, quantity phase corresponding with the position of the arc orbit plate away from groove on one side
Deng pulley guide rod；
The pulley guide rod includes guide rod pulley and vertical link；The vertical link is fixed on the channel steel inner panel
On web, the guide rod pulley rotation is connected in the vertical link, and is contacted with the corresponding arc orbit plate；
The right end of the channel steel inner panel respectively uses a rotation axis to connect respectively with two support pulley rotations；Described two
It is set side by side before and after a support pulley, and is connect respectively with the track end plate longitudinal sliding motion.
Further, the ribbed stiffener is each provided with one group in the left and right ends of the H profile steel outside plate, and every group of ribbed stiffener wraps
Two or so the ribbed stiffeners being set side by side are included, is provided between two or so the ribbed stiffeners being set side by side and several is located at institute
State the cylinder support of the two sides up and down of the web of H profile steel outside plate；Meanwhile aperture is equipped on the ribbed stiffener, the cylinder branch
The both ends of support are inserted into respectively in the aperture for the ribbed stiffener that two or so are set side by side.
Further, it is also connected by screw rod with nut between the front and back edge of a wing of the H profile steel outside plate；The both ends of the screw rod
It is each passed through the front and back edge of a wing of the H profile steel outside plate, and its both ends is adopted on the outside of the edge of a wing respectively before and after the H profile steel outside plate
It is fastened with the nut.
Further, H profile steel outside plate left part is welded with two anchorage end plates up and down, and the anchorage end plate uses anchorage
Bolt and the connecting elements of structure connect.
The present invention is diagonally arranged in vibration isolation layer plane, and one end connects apex angle one end and connects base angle.When interlayer occurs for vibration insulation
When displacement, the pretension of steel strand wires is converted into power identical with direction of displacement, provides negative stiffness for structure, reduces the rigid of vibration insulation
Degree, to reduce the seismic response of superstructure.
Technical characterstic of the invention is, is turned the pretension of prestress wire using channel steel pulley and arc orbit plate
Turn to horizontal output power.Pretension when pulley guide rod is in the circular arc highest point of arc orbit plate in steel strand wires is maximum, steel
Vertical resultant force on the channel steel pulley of twisted wire effect and the pressure balance on pulley guide rod.When in H profile steel outside plate end application position
When moving excitation, H profile steel outside plate is protruding, and the minimum point of pulley guide rod towards arc orbit plate moves at this time, in steel strand wires
Pretension release pushes H profile steel outside plate further to move to displacement excitation direction and produces active force, and then provides for structure
Negative stiffness.At this point, influence of two pieces of channel steel inner panels due to compatibility of deformation, it can be mobile to centre, while the prestressing force meeting of steel strand wires
Loss.And since vertical relative motion can only occur for the setting of support pulley and track end plate, two channel steel inner panels without sending out
Raw horizontal relative motions.
Compared with prior art, the present invention has following advantage:
(1) present invention is converted the pretension of prestress wire by channel steel pulley and the special arc orbit plate of H profile steel
For power output, the size of maximum output power can be changed by adjusting the prestressing force of steel strand wires, very big work is provided for structure
Firmly.
(2) using the combination of H profile steel and channel steel simple and easy to get, the realization of rod-type negative stiffness device is realized, is reduced
Volume shared by device, flexible arrangement and economy.
(3) and the device combines to realize with pulley guide rails and meets big position while providing larger negative stiffness by pulley
Migrate range request.
Detailed description of the invention
Fig. 1 a is shown as the schematic diagram of rod-type negative stiffness device provided in an embodiment of the present invention.
Fig. 1 b is shown as the top view of rod-type negative stiffness device provided in an embodiment of the present invention.
Fig. 1 c is shown as the sectional view in the section 1-1 of Fig. 1 b.
Fig. 1 d is shown as the sectional view in the section 2-2 of Fig. 1 b.
Fig. 1 e is shown as the left view of rod-type negative stiffness device provided in an embodiment of the present invention.
Fig. 2 a is shown as the schematic diagram of H profile steel outside plate provided in an embodiment of the present invention.
Fig. 2 b is shown as the top view of H profile steel outside plate provided in an embodiment of the present invention.
Fig. 2 c is shown as the sectional view in the section 3-3 of Fig. 2 b.
Fig. 2 d is shown as the sectional view in the section 4-4 of Fig. 2 b.
Fig. 2 e is shown as the left view of H profile steel outside plate provided in an embodiment of the present invention.
Fig. 2 f is shown as the left view of the support of cylinder shown in Fig. 2 e.
Fig. 2 g is shown as the front view of the support of cylinder shown in Fig. 2 e.
Fig. 2 h is shown as the front view of anchorage end plate shown in Fig. 2 e.
Fig. 3 a is shown as the schematic diagram of channel steel inner panel provided in an embodiment of the present invention.
Fig. 3 b is shown as the top view of channel steel inner panel provided in an embodiment of the present invention.
Fig. 3 c is shown as the left view of channel steel inner panel provided in an embodiment of the present invention.
Fig. 3 d is shown as the sectional view in the section 5-5 of Fig. 3 b.
Fig. 3 e is shown as the schematic diagram of track end plate shown in Fig. 3 a.
Description of symbols
1H fashioned iron outside plate, 2 channel steel inner panels, 201 ribbed stiffeners, 202 arc orbit plates, 203 circular arc restraining plates, 204 nuts,
205 screw rods, 206 transverse stiffeners, 207 vertical ribbed stiffeners, 208 anchorage end plates, 209 anchorage bolts, the support of 210 cylinders, 211 anchors
Fixed end head, 3 pulley guide rods, 301 hush panels, 302 track plates, 303 end plates, 304 without friction material, and 305 ball pulleys, 306 is solid
Fixed board, 4 steel strand wires, 5 channel steel pulleys, 6 support pulleys, 7 track end plates.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification to be taken off
The content shown is not intended to limit the invention enforceable qualifications so that those skilled in the art understands and reads, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention
Under the effect of can be generated and the purpose that can reach, the model that disclosed technology contents can be covered should all be still fallen in
In enclosing.Meanwhile cited such as " top " in this specification, " bottom ", "upper", "lower", " one ", " two " term, also only
For being illustrated convenient for narration, rather than to limit the scope of the invention, relativeness is altered or modified, in no reality
Under qualitative change more technology contents, when being also considered as the enforceable scope of the present invention.
The requirement of big stroke Yu big power output can not be met simultaneously in view of existing negative stiffness device, and expensive, it is empty
Between arrange inflexible problem.The present invention utilizes the pulley on steel plate in the arc orbit plate and channel steel on H profile steel outside plate web
Guide rod, which is realized, converts power output for the pretension of pretension steel strand wires.It is realized by H profile steel and channel steel simple and easy to get
The realization of rod-type negative stiffness device makes its flexible arrangement, occupies small in size, economy height.The device can be very big in offer
Meet big displacement range demands while negative stiffness.
Rod-type negative stiffness device of the invention will be described in detail by specific embodiment below.
As shown in Fig. 1 a to Fig. 3 e, a kind of rod-type negative stiffness device, including H profile steel outside plate 1, channel steel inner panel 2, pulley guide rod
3, steel strand wires 4, channel steel pulley 5, support pulley 6, track end plate 7.
Wherein, H profile steel outside plate 1 includes two edges of a wing that front and back is set side by side, and is vertically connected between aforementioned two wing plate
Horizontally disposed web.
Further, the web of H profile steel outside plate 1 respectively arranges a channel steel inner panel 2 in two sides up and down, before channel steel inner panel 2 includes
Two edge of a wing afterwards, and the horizontally disposed web being vertically connected between two edge of a wing；The web of channel steel inner panel 2 and two edges of a wing it
Between constitute along 2 length direction of channel steel inner panel groove, and the channel steel inner panel 2 being located above be fovea superior groove profile, underlying slot
Steel inner panel 2 is recessed groove profile.Meanwhile the circular arc restraining plate being arranged in pairs is welded on the inside of the edge of a wing before and after the H profile steel outside plate 1
203, the center of circle of circular arc restraining plate 203 is towards the outside on 1 edge of a wing of H profile steel outside plate, and circular arc restraining plate 203 is located at channel steel
The front and rear sides of inner panel 2, and clamp channel steel inner panel 2.It in a preferred embodiment, can also be in circle in order to reduce frictional force
Lubriation material, such as mechanical lubricating oil is arranged in 203 arc edge of arc restraining plate, to reduce in circular arc restraining plate 203 and channel steel
Frictional force between plate 2.For example and without limitation, multiple groups have can be set in circular arc restraining plate 203.
Further, several arc orbit plates 202, and arc orbit are welded in the upper and lower ends of 1 web of H profile steel outside plate
The center of circle of plate 202 is towards 1 web of H profile steel outside plate.For example and without limitation, in the present embodiment, 1 web of H profile steel outside plate
Upper and lower ends three arc orbit plates 202 can be respectively welded.Correspondingly, the web in channel steel inner panel 2 deviates from the one of groove
Face is provided with pulley guide rod 3 corresponding with the position of arc orbit plate 202 and equal quantity.Pulley guide rod 3 includes one
Guide rod pulley and a wider width and the length vertical link equal with the width of the web of channel steel inner panel 2；Wherein, vertically
Connecting rod is welded on the web of channel steel inner panel 2, and guide rod pulley rotation is connected in vertical link, and is connect with arc orbit plate 202
Touching.In a preferred embodiment, correspond to vertical link position, can also be set respectively in the groove of channel steel inner panel 2
It is equipped with ribbed stiffener.
Further, several symmetrically arranged channel steel pulleys 5, each channel steel are installed on the outside of the front and back edge of a wing of channel steel inner panel 2
Pulley 5 is corresponding with a steel strand wires 4 respectively, and steel strand wires 4 are pressed on channel steel pulley 5.For example and without limitation, it can incite somebody to action
Channel steel pulley 5 is mounted on position corresponding with pulley guide rod 2, and makes in the rotary centerline and pulley guide rod 2 of channel steel pulley 5
The rotary centerline of guide rod pulley is coaxially disposed.
Further, the left and right ends of H profile steel outside plate 1 are welded with one group of ribbed stiffener, and every group of ribbed stiffener includes two left sides
The ribbed stiffener 201 that the right side is set side by side is welded with transverse stiffener between two or so two ribbed stiffeners 201 being set side by side
206, there are two the settings of transverse stiffener 206, and a transverse stiffener 206 is located at the top of 1 web of H profile steel outside plate, another
Transverse stiffener 206 is located at the lower section of 1 web of H profile steel outside plate；Meanwhile in the web of transverse stiffener 206 and H profile steel outside plate 1
Between be also respectively welded vertical ribbed stiffener 207.
Further, it is provided between two or so the ribbed stiffeners 201 being set side by side and several is located at H profile steel outside plate 1
The cylinder support 210 of two sides above and below web, and cylinder support 210 is respectively positioned between two lateral stiffening plates 206 up and down；Into one
Step, can the aperture on ribbed stiffener 201, for be inserted into cylinder support 210, cylinder support 210 both ends be inserted into two left sides respectively
In the aperture for the ribbed stiffener 201 that the right side is set side by side.
Further, for wearing steel strand wires 4, the both ends of steel strand wires 4 are each passed through a left side for H profile steel outside plate 1 for cylinder support 210
Cylinder support 211 and the ribbed stiffener 201 at right both ends anchor, and steel strand wires 4 are with certain prestressing force and solid with anchoring end 211
It is fixed tight.For example and without limitation, in this example, can take 4 diameter of steel strand wires is 15mm.
Further, the right end of upper and lower two channel steel inner panels 2 respectively uses a rotation axis to set side by side with two front and backs respectively
The support pulley 6 set is rotatablely connected, and support pulley 6 is connect with 7 longitudinal sliding motion of track end plate, track end plate 7 and structure
Connecting elements welding.
Further, track end plate 7 may include hush panel 301, track plates 302, fixed plate 306 and end plate 303；Wherein,
The track of slidable connection support pulley 6, two upper and lower two hush panels 301, left and right track plates are installed on track plates 302
302, which collectively form one, can accommodate the cavity of support pulley 6, and be welded in fixed plate 306, form pulley track；Pulley
Two groups are set side by side with before and after track, and two groups of pulley tracks are welded on end plate 303 and track end plate 7 is collectively formed.Upper and lower slot
The support pulley 6 of 2 front side of steel inner panel is located in the pulley track in front, after the support pulley 6 of upper and lower 2 rear side of channel steel inner panel is located at
In the pulley track of side.Vertical relative motion can only occur for two channel steel inner panels 2 without horizontal relative motions as a result,
Support pulley 6 can effectively reduce the interference of frictional force simultaneously.In a preferred embodiment, support pulley 6 can use
Ball pulley is internally provided with ball 305.In order to reduce frictional force, no friction material can also be posted on the inside of track plates 302
Material 304, such as 5mm thick polyethylene tetrafluoro plate can be used.
Further, in order to guarantee the out plane stability on 1 edge of a wing of H profile steel outside plate, between the front and back edge of a wing of H profile steel outside plate 1
Also connected by screw rod 204 and nut 205；The both ends of screw rod 204 are each passed through the front and back edge of a wing of H profile steel outside plate 1, and its both ends
Nut 205 is respectively adopted before and after the H profile steel outside plate 1 and fastens for portion on the outside of the edge of a wing.In a preferred embodiment, H profile steel outside plate 1
The upper and lower ends on the front and back edge of a wing can be attached by screw rod 204 and nut 205, and link position can be located at H-type
1 middle part of steel outside plate.
Further, being welded with two anchorage end plates 208, anchorage end plate 208 up and down in 1 left part of H profile steel outside plate can adopt
It is connect with anchorage bolt 209 with the connecting elements of structure.
The present invention is diagonally arranged in vibration isolation layer plane, and one end connects apex angle one end and connects base angle.When interlayer occurs for vibration insulation
When displacement, the pretension of steel strand wires is converted into power identical with direction of displacement, provides negative stiffness for structure, reduces the rigid of vibration insulation
Degree, to reduce the seismic response of superstructure.
Specifically, there is precompression when pulley guide rod 3 is in the circular arc highest point of arc orbit plate 202, and pulley is led
When precompression on bar 3 is offseted with the pretension of prestress wire 4, pulley guide rod 3 keeps vertically balancing.When in H profile steel
1 end of outside plate apply displacement excitation when, H profile steel outside plate 1 is protruding, at this time pulley guide rod 3 towards arc orbit plate 202 most
Low spot movement, since pulley guide rod 3 is precompressed, internal precompression will push H profile steel outside plate 1 further to displacement excitation
Direction movement produces active force, and then provides negative stiffness for structure.At this point, two pieces of channel steel inner panels 2 are due to compatibility of deformation
It influences, can be mobile to centre, while the prestressing force of steel strand wires 4 can lose.And setting due to, support pulley 6 and track end plate 7
It sets, vertical relative motion can only occur for two channel steel inner panels 2 without horizontal relative motions.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (4)
1. a kind of rod-type negative stiffness device, it is characterised in that: including H profile steel outside plate (1), channel steel inner panel (2), pulley guide rod (3),
Steel strand wires (4), channel steel pulley (5), support pulley (6), track end plate (7)；
A channel steel inner panel (2) is respectively arranged in the two sides up and down of the web of the H profile steel outside plate (1), the H profile steel outside plate (1)
The circular arc restraining plate (203) for the evagination being arranged in pairs, circular arc restraining plate (203) difference position are installed on the inside of the edge of a wing of front and back
In the front and rear sides of the channel steel inner panel (2), and clamp the channel steel inner panel (2)；
Several symmetrically arranged channel steel pulleys (5), each channel steel pulley are installed on the outside of the front and back edge of a wing of the channel steel inner panel (2)
(5) corresponding with one steel strand wires (4) respectively, and the steel strand wires (4) are pressed on the channel steel pulley (5)；Outside the H profile steel
The left and right ends of plate (1) are provided with ribbed stiffener, and the both ends of the steel strand wires (4) are anchored in the H profile steel outside plate (1) respectively
On the ribbed stiffener of left and right ends, and applies pre-tensile stress and fixed with anchoring end (211)；
The upper and lower ends of the web of the H profile steel outside plate (1) are mounted on several arc orbit plates (202), and the circular arc rail
The center of circle of guidance tape (202) is towards the web of the H profile steel outside plate (1)；Between the web and two edges of a wing of the channel steel inner panel (2)
The groove along channel steel inner panel (2) length direction is constituted, the channel steel inner panel (2) being located above is fovea superior groove profile, is located below
Channel steel inner panel (2) be recessed groove profile；The web of the channel steel inner panel (2) in being provided with and the circle away from groove on one side
The pulley guide rod (3) that the position of arc track plates (202) is corresponding, quantity is equal；
The pulley guide rod (3) includes guide rod pulley and vertical link；The vertical link is fixed on the channel steel inner panel (2)
Web on, the guide rod pulley rotation is connected in the vertical link, and is connect with the corresponding arc orbit plate (202)
Touching；
The right end of the channel steel inner panel (2) respectively uses a rotation axis to be rotatablely connected respectively with two support pulleys (6)；It is described
It is set side by side before and after two support pulleys (6), and is connect respectively with track end plate (7) longitudinal sliding motion.
2. rod-type negative stiffness device according to claim 1, it is characterised in that: the ribbed stiffener is in the H profile steel outside plate
(1) left and right ends are each provided with one group, and every group of ribbed stiffener includes two or so the ribbed stiffeners being set side by side (201), and two
It controls and is provided with the upper and lower of several webs for being located at the H profile steel outside plate (1) between the ribbed stiffener (201) being set side by side
The cylinder of two sides supports (210)；Meanwhile aperture is equipped on the ribbed stiffener (201), the both ends of the cylinder support (210)
It is inserted into the aperture of two or so the ribbed stiffeners (201) being set side by side respectively.
3. rod-type negative stiffness device according to claim 1, it is characterised in that: the front and back edge of a wing of the H profile steel outside plate (1)
Between also by screw rod (204) and nut (205) connection；The both ends of the screw rod (204) are each passed through the H profile steel outside plate
(1) the front and back edge of a wing, and the nut (205) are respectively adopted on the outside of the edge of a wing before and after the H profile steel outside plate (1) in its both ends
Fastening.
4. rod-type negative stiffness device according to claim 1, it is characterised in that: H profile steel outside plate (1) the left part welding
There are two anchorage end plates (208) up and down, the anchorage end plate (208) is connected using the connecting elements of anchorage bolt (209) and structure
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910347464.2A CN110130710B (en) | 2019-04-28 | 2019-04-28 | Rod type negative rigidity device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910347464.2A CN110130710B (en) | 2019-04-28 | 2019-04-28 | Rod type negative rigidity device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110130710A true CN110130710A (en) | 2019-08-16 |
| CN110130710B CN110130710B (en) | 2020-08-14 |
Family
ID=67575262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910347464.2A Active CN110130710B (en) | 2019-04-28 | 2019-04-28 | Rod type negative rigidity device |
Country Status (1)
| Country | Link |
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| CN (1) | CN110130710B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195188A (en) * | 2013-04-11 | 2013-07-10 | 北京工业大学 | I-shaped double-plate assembling steel structure prestressed buckling preventing support |
| CN103669629A (en) * | 2012-09-19 | 2014-03-26 | 上海宝冶集团有限公司 | Double-web H-shaped steel type buckling restraint brace |
| CN103981965A (en) * | 2014-04-11 | 2014-08-13 | 北京工业大学 | Self-resetting-prestress bending-preventing support of channel-steel assembled steel structure |
| CN108755954A (en) * | 2018-05-25 | 2018-11-06 | 西安建筑科技大学 | A kind of full assembled Self-resetting Column Joint of unilateral prestressing force |
-
2019
- 2019-04-28 CN CN201910347464.2A patent/CN110130710B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669629A (en) * | 2012-09-19 | 2014-03-26 | 上海宝冶集团有限公司 | Double-web H-shaped steel type buckling restraint brace |
| CN103195188A (en) * | 2013-04-11 | 2013-07-10 | 北京工业大学 | I-shaped double-plate assembling steel structure prestressed buckling preventing support |
| CN103981965A (en) * | 2014-04-11 | 2014-08-13 | 北京工业大学 | Self-resetting-prestress bending-preventing support of channel-steel assembled steel structure |
| CN108755954A (en) * | 2018-05-25 | 2018-11-06 | 西安建筑科技大学 | A kind of full assembled Self-resetting Column Joint of unilateral prestressing force |
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| Publication number | Publication date |
|---|---|
| CN110130710B (en) | 2020-08-14 |
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