CN103867625B - Rope type self-reset shape memory alloy seismic isolation and seismic reduction support - Google Patents
Rope type self-reset shape memory alloy seismic isolation and seismic reduction support Download PDFInfo
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- CN103867625B CN103867625B CN201310613180.6A CN201310613180A CN103867625B CN 103867625 B CN103867625 B CN 103867625B CN 201310613180 A CN201310613180 A CN 201310613180A CN 103867625 B CN103867625 B CN 103867625B
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Abstract
The invention discloses a rope type self-reset shape memory alloy seismic isolation and seismic reduction support, and belongs to the technical fields of an architectural structure and mechanical engineering. A transverse anti-seismic cylinder tube (1), a transverse anti-seismic sliding passage (2), a connecting rod (3), a vertical anti-seismic cylinder tube (4), a vertical anti-seismic piston (5), a common biasing spring (6), a transverse anti-seismic alloy wire rope (7), a vertical anti-seismic alloy wire rope (9) and a fixing upright post (13) are added on the basis of an original structure. According to the rope type self-reset shape memory alloy seismic isolation and seismic reduction support disclosed by the invention, the self-reset capacity in the transverse direction is obtained while the self-reset capacity in the vertical direction is obtained, the self-reset capacity in the transverse direction and the self-reset capacity in the vertical direction are reasonably combined, and multidirectional seismic isolation and seismic reduction is obtained while the energy dissipation stability of multidirectional seismic isolation and seismic reduction of the rope type self-reset shape memory alloy seismic isolation and seismic reduction support is increased; meanwhile, the use is wide, the rope type self-reset shape memory alloy seismic isolation and seismic reduction support not only can be independently used as a tensile and compressive damper, but also can be independently used as a shear-resisting damper, and the rope type self-reset shape memory alloy seismic isolation and seismic reduction support has a wide market prospect.
Description
Technical field
The present invention relates to a kind of earthquake isolation bearing, particularly a kind of cable type Self-resetting marmem earthquake isolation
Bearing, belongs to building structure and mechanical engineering technical field.
Background technology
In recent years, earthquake isolation bearing is widely used in various buildings, machinery, Aero-Space, communications and transportation, physical culture device
In the important significant construction applications such as material, to the material selected by such high-performance bearing, designing technique and manufacturing process all
Very crucial.
For earthquake isolation bearing, both at home and abroad using in the form of can be divided into two big class：Rubber support and sliding isolated bearing.
Wherein, natural laminated rubber bearing has larger vertical rigidity, bear building weight when vertical deformation little, vertical every
Shake damping effect is very poor, and horizontal rigidity is less, and linear properties are good, due to the damping very little of natural laminated rubber bearing, no
Possess enough energy dissipation capacities, so being typically used in combination with other damper or energy consumption equipment in structure uses.And develop
Although the preferable lead rubber bearing of prospect has comparatively ideal vertical rigidity, and has certain earthquake energy in itself
Ability, but its security, durability and long-time stability have much room for improvement, and after particularly shaking, structure reset capability is very poor；Sliding
Move shock isolating pedestal and seismic energy effectively limited to top transmission with to lower feedback by Relative sliding motion and friction energy-dissipating,
The method stress is reliable, and difficulty of construction is little, and is contemplated that antirust, the damage replacing problem of steel part, but the deficiency of its maximum is
Need additional configuration resetting-mechanism device, after otherwise shaking, structure cannot reset.
As known from the above, as the important parameter of earthquake isolation bearing, its damping energy dissipation characteristic and recoverable deformation ability
Strong and weak problem, the always difficult point in engineering structure seismic resistance field, existing some bearings body in the application in engineering simultaneously
Reveal some limitation：The problem of for example aging and durability, the reliability of long-term work, the renewal after strong earthquakes and replacement
Problem and cannot recover after strong earthquakes etc., therefore, lead rubber bearing or reinforce rear support, natural with new material
Traditional earthquake isolation methods such as interlayer shock insulation rubber bearing, simple common metal bearing and slip support abutment are all difficult to many
Control to intelligent Self-resetting earthquake isolation.
The Chinese patent " mixed memory alloy damper " of on July 11st, 2007 bulletin（The patent No.：
ZL200620200532.0, notification number：CN2921137Y）, the Chinese patent " self-resetting super-elastic of on 2 27th, 2008 bulletins
Marmem damper '（The patent No.：ZL200720011605.6, notification number：CN201027352Y）, April 23 in 2008
The Chinese patent " damper of multi-dimensional superelastic shape memory alloy " that day is announced（The patent No.：ZL200720011607.5, bulletin
Number：CN201050121Y）, " shape memory alloy (SMA) self-resetting deformation energy-consumption damps 2010 2 months Chinese patents disclosed in 24 days
Device "（The patent No.：ZL200910011327.8, publication number：CN101654935AY）, and China disclosed in 20 days June in 2012
Patent " multidirectional six-cone-cylinder shape memory alloy damper "（Application number：201110318312.3, publication number：
CN102505768A）The new material being adopted Deng damper is all marmem,
At present, in order to avoid the limitation in the application of this kind of bearing, one of method of solution is exactly to find new material to carry out
Redesign, Chinese patent " a kind of NiTi base shape for fabrication structural vibration reduction device announced on April 14th, 2010
The shape memory alloys " (patent No.：ZL200910036260, notification number：In CN101693964, new material employed in technical scheme
It is exactly Ni-Ti-based shape memory alloy, structure is simple, anti seismic efficiency is notable, but the scope of application is narrower, and cost is too high；?
The Chinese patent of on March 20th, 2013 bulletin is " for large-span space structure（Rack）Intelligent shock-isolation damping Nitinol prop up
The seat " (patent No.：ZL201210562576, notification number：CN102979181), this device institute is also NiTi base shape using material
Memorial alloy, single self-resetting capability only having vertical direction, thus multidirectional earthquake isolation cannot be accomplished, and purposes is more single
One, there is no extensive market.
Content of the invention
The problem existing for above-mentioned prior art, the present invention provides a kind of cable type Self-resetting marmem shock insulation
Shock mount, structure is simple, while having the self-resetting capability of vertical direction, possesses the runback potential energy of horizontal direction
Power, and both reasonably combine, improve the multidirectional earthquake isolation of bearing energy dissipating stability while, accomplished that multidirectional shock insulation subtracts
Shake；And of many uses, both can use separately as Anti-pull-press damper, can use separately as shearing resistance damper again.
To achieve these goals, the present invention proposes a kind of cable type Self-resetting marmem earthquake isolation bearing,
Including vertical antidetonation cylinder barrel, vertical antidetonation piston and common bias spring, vertical antidetonation cylinder barrel top has manhole, bottom
It is welded with mounting flange, vertical antidetonation piston and common bias spring are arranged in vertical antidetonation cylinder barrel；
On the basis of said structure, in structure, increased Horizontal Seismic cylinder barrel, Horizontal Seismic slideway, connecting rod, laterally
Antidetonation alloy cord, vertical antidetonation alloy cord and vertical columns；
Wherein, Horizontal Seismic slideway is bowl cover shape, and center is provided with vertical columns, is welded with circle above vertical columns
Shape baffle plate, Horizontal Seismic cylinder barrel is enclosed within outside vertical columns, above Horizontal Seismic cylinder barrel, it is welded with adpting flange, adpting flange
Internal diameter is less than the diameter of circular baffle plate, and meanwhile, Horizontal Seismic cylinder barrel is with vertical columns by many Horizontal Seismic alloy cords even
Connect, Horizontal Seismic alloy cord is evenly arranged along vertical columns outside diameter hoop, one end of every Horizontal Seismic alloy cord is passed through
Active chuck is fixed on vertical columns, and the other end is connected at the inner tube wall of cylinder barrel by fixed chuck；
Connecting rod is welded on Horizontal Seismic slide bottom, and passes through the circular hole opened on vertical antidetonation cylinder barrel to live with vertical antidetonation
Plug connects, and the upper and lower both sides of vertical antidetonation piston pass through up and down the two of two groups of vertical antidetonation alloy cords and vertical antidetonation cylinder barrel respectively
Cylinder cap is connected, and vertical antidetonation alloy cord arranges many, along vertical antidetonation inner wall of cylinder circumference uniform distribution, each vertical antidetonation
One end of alloy cord is fixed on the side of vertical antidetonation piston by active chuck, and other end fixed chuck is connected to cylinder barrel
The side of cylinder cap；Common bias spring one end is arranged on vertical antidetonation piston, and the other end is arranged in vertical antidetonation cylinder barrel
Portion bottom surface.
Further, Horizontal Seismic alloy cord arranges three, is evenly arranged along vertical columns outside diameter hoop.
Further, Horizontal Seismic alloy cord arranges five, is evenly arranged along vertical columns outside diameter hoop.
Further, Horizontal Seismic alloy cord arranges four, is evenly arranged along vertical columns outside diameter hoop.
Further, the Horizontal Seismic alloy cord setting six roots of sensation, is evenly arranged along vertical columns outside diameter hoop.
Further, vertical antidetonation inner wall of cylinder, corresponding vertical antidetonation piston installed position circumferentially place be evenly arranged many
The individual raised smooth slideway of orientation.
Further, also include Universal pulley, Universal pulley setting is multiple, and even cloth is fixedly mounted on Horizontal Seismic cylinder barrel
On the cross section of lower end.
Contrast existing earthquake isolation bearing, the present invention devises Horizontal Seismic device and vertical antidetonation in the holder simultaneously
Device, is passed to by vertical columns on Horizontal Seismic cylinder barrel by many Horizontal Seismic alloy cords in bearing transverse vibration ripple, horizontal
Make in alternating translational movement to antidetonation cylinder barrel, many Horizontal Seismic alloy cords alternately stretch and bounce back change, there is provided
Larger hysteretic energy and restoring force；Meanwhile, vertical shock wave will be by vertical antidetonation alloy cord by vertical antidetonation cylinder barrel
Cylinder cap pass on vertical antidetonation piston, and vertical antidetonation piston is made in reciprocal upper and lower translation motion, the two of setting symmetrical above and below
Organize vertical antidetonation alloy cord and common bias spring all alternately stretching and destruction of edition type, make vertical antidetonation alloy cord and
Common bias spring, during there is super-elasticity and elastic deformation, consumes substantial amounts of vibration energy and returns with enough
Multiple power occurs, thus having accomplished multidirectional earthquake isolation, and while original structure has the self-resetting capability of vertical direction,
Possesses the self-resetting capability of horizontal direction；Meanwhile, the earthquake isolation bearing of this patent can use in building structure, also may be used
To use separately as Anti-pull-press damper, can use separately as shearing resistance damper again, there are extensive market prospects.
Brief description
Fig. 1 is the structural representation of the present invention；
Fig. 2 be Fig. 1 in structural representation from A-A to section：
Fig. 3 is the structural representation of Horizontal Seismic cylinder barrel；
Fig. 4 is the structural representation of Horizontal Seismic slideway；
Fig. 5 is the structural representation of vertical antidetonation piston；
Fig. 6 is the structural representation of vertical antidetonation cylinder barrel；
Fig. 7 carries out the test data figure of one directional tensile test for the present invention on universal test machine platform；
Fig. 8 carries out the test data figure of unidirectional torsion test for the present invention on universal test machine platform；
Fig. 9 carries out the test data figure of stretch-twisting combination test for the present invention on universal test machine platform；
Figure 10 is the curve map between the dependent variable of nitinol alloy wire tension test and restoring force；
It is multidirectional to one at the seismic support of a certain structure that Figure 11 is that normal damper and damper of the present invention are separately mounted to
The schematic diagram of shock wave stress response situation；
It is multidirectional to one at the seismic support of a certain structure that Figure 12 is that normal damper and damper of the present invention are separately mounted to
The schematic diagram of shock wave dynamic respond situation.
In figure：1st, Horizontal Seismic cylinder barrel, 2, Horizontal Seismic slideway, 3, connecting rod, 4, vertical antidetonation cylinder barrel, 5, vertical antidetonation
Piston, 6, common bias spring, 7, Horizontal Seismic alloy cord, 8, vertical antidetonation alloy cord, 9, Universal pulley, 10, fixing
Chuck, 11, active chuck, 12, orient smooth slideway, 13, vertical columns, 14, mounting flange, 15, baffle plate.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of cable type Self-resetting marmem earthquake isolation bearing, including vertical antidetonation cylinder barrel 4,
Vertical antidetonation piston 5 and common bias spring 6, as shown in fig. 6, vertical antidetonation cylinder barrel 4 top has manhole, bottom welding
There is mounting flange 14, as shown in figure 5, vertical antidetonation piston 5 is one piece of raw sheet, have a circle manhole, and common bias bullet
Spring 6 is arranged in vertical antidetonation cylinder barrel 4；
On the basis of the above, including Horizontal Seismic cylinder barrel 1, Horizontal Seismic slideway 2, connecting rod 3, vertical antidetonation cylinder barrel 4, erect
To antidetonation piston 5, common bias spring 6, Horizontal Seismic alloy cord 7, vertical antidetonation alloy cord 9 and vertical columns 13；
Wherein, as shown in figure 4, Horizontal Seismic slideway 2 is bowl cover shape, center is provided with vertical columns 13, fixing vertical
It is welded with circular baffle plate 15, Horizontal Seismic cylinder barrel 1 is enclosed within outside vertical columns 13 above post 13, as shown in figure 3, Horizontal Seismic cylinder
It is welded with adpting flange, adpting flange internal diameter is less than the diameter of circular baffle plate 15, Horizontal Seismic cylinder barrel 1 is vertical with fixing above cylinder 1
Post 13 is connected by many Horizontal Seismic alloy cords 7, and Horizontal Seismic alloy cord 7 is along the uniform cloth of vertical columns 13 outside diameter hoop
Put, one end of every Horizontal Seismic alloy cord 7 is fixed on vertical columns 13 by active chuck 11, the other end passes through to fix
Chuck 10 is connected at the inner tube wall of cylinder barrel；
Connecting rod 3 is welded on Horizontal Seismic slideway 2 bottom, and passes through the circular hole opened on vertical antidetonation cylinder barrel 4 and vertically resist
Shake piston 5 connects, and vertical antidetonation piston passes through two groups of vertical antidetonation alloy cords 8 and vertical antidetonation cylinder barrel 4 in both sides about 5 respectively
Up and down two cylinder caps be connected, vertical antidetonation alloy cord 8 arranges many, along vertical antidetonation cylinder barrel 4 inwall circumference uniform distribution, each
One end of root vertical antidetonation alloy cord 8 is fixed on the side of piston by active chuck 11, and other end fixed chuck 10 is even
It is connected on the side of cylinder barrel cylinder cap；Common bias spring 6 one end is arranged on vertical antidetonation piston 5 lower end, and the other end is arranged on vertically
Antidetonation cylinder barrel 4 inner bottom surface.
Further improve as the present invention, Horizontal Seismic alloy cord 7 arranges three it is also possible to be designed as five, edge
Vertical columns 13 outside diameter hoop is evenly arranged.Above-mentioned design, the company of the tie point of Horizontal Seismic alloy cord 7 and vertical columns 13
Line is the polygon on a radix side, thus serving firm effect.Equally, Horizontal Seismic alloy cord 7 arranges four,
Can be designed as the six roots of sensation, Horizontal Seismic alloy cord 7 is symmetrical, equally serves firm effect.
Further improve as the present invention, as shown in Fig. 2 vertical antidetonation cylinder barrel 4 inwall, corresponding vertical antidetonation piston 5
Circumferentially place is evenly arranged the smooth slideways of orientation 12 of multiple projections to installed position, limits vertical antidetonation piston 5 vertical
Rotate in fixed axis in antidetonation cylinder barrel 4, so that vertical antidetonation piston 5 can only be made along slideway direction in vertical antidetonation cylinder barrel 4 reciprocal
Translational motion, strengthens the effect of damping.
Further improve as the present invention, in device, also include Universal pulley 9, Universal pulley 9 arranges multiple, and even cloth is solid
Dingan County is contained on the bottom cross section of Horizontal Seismic cylinder barrel 1, so that it is guaranteed that operationally, Horizontal Seismic cylinder barrel 1 is back and forth put down
Shifting movement is more smoothly.
In the course of the work, when receiving vibrations, bearing transverse vibration ripple is by many Horizontal Seismic alloy cords 7 by fixing
Column 13 passes on Horizontal Seismic cylinder barrel 1, and Horizontal Seismic cylinder barrel 1 is made in alternating translational movement, many Horizontal Seismic alloy cords 7
Alternately stretching and retraction change, there is provided larger hysteretic energy and restoring force；Meanwhile, vertical shock wave will be by perpendicular
Passed on vertical antidetonation piston 5 by the cylinder cap of vertical antidetonation cylinder barrel 4 to antidetonation alloy cord 8, and vertical antidetonation piston 5 is made back and forth
In upper and lower translation motion, two groups of vertical antidetonation alloy cords 8 of setting symmetrical above and below and common bias spring 6 all alternately draw
Stretch and destruction of edition type, make vertical antidetonation alloy cord 8 and common bias spring 6 in the process that super-elasticity and elastic deformation occur
In, consume substantial amounts of vibration energy and occur with enough restoring forces,
Experiment 1：
It is arranged on the cable type Self-resetting marmem earthquake isolation bearing of above-mentioned making on universal testing machine,
Carry out the simple loading and unloading test of three classes：One is unidirectional tensile compression test, test data (as Fig. 7)；Two is unidirectional shearing examination
Test, test data (as Fig. 8)；Three is to draw to cut composite test, test data (as Fig. 9).Fig. 7-Fig. 9, gives bearing of the present invention,
Relation curve in the case of loading and unloading, between external applied load and displacement.By Fig. 7-Fig. 9 can be seen that due to load and
The impact of unloading cyclic loading, the outer force-displacement curve that result in bearing significantly presents a typical delayed closed curve
(hysteresis loop), but this curve does not show in load/unload process and significantly (answers) power platform, its reason is in bearing
B alloy wire only have a little part and there occurs that martensitic traoformation changes, and most of material is still in the shape of elastic deformation
State.Even so, B alloy wire also significantly shows good dissipation characteristics, there is excellent power consumption hysteresis loop and high recovery
(or reply) ability, and hysteresis loop increases with the increase of external applied load.Figure 10 is the strain of the tension test of nitinol alloy wire
Curve between amount and restoring force, B alloy wire restoring force after appropriate stretching can reach more than 620Mpa, when B alloy wire
When dependent variable reaches 10 about, B alloy wire can produce about 680Mpa restoring force it can be seen that the self-resetting capability of such bearing
Very strong.
Experiment 2：
By the cable type Self-resetting marmem earthquake isolation bearing of above-mentioned making, it is arranged on the antidetonation of a certain structure
At support, earthquake isolation effect is fine.As Figure 11 illustrates common aseismatic bearing, at the seismic support of a certain structure, to one
Multidirectional shock wave displacement and the situation of stress response, find out that from the data obtained the earthquake isolation effect of common bearing is poor, mainly
Reason has two：One be common aseismatic bearing automatic recovery ability very poor, two is that damping dissipation energy ability is weak；Figure 12 illustrates to install
After alloy earthquake isolation bearing of the present invention, to the earthquake isolation situation of multidirectional shock wave response it can be seen that this bearing at support
Effect of energy dissipation very well, and the durability of earthquake isolation and stability higher, due to the super-elasticity of horizontal and vertical alloy cord
Effect, the deformation of alloy cord in very big deformation range will recover when bearing vibrations are returned to equilbrium position, this process
The mechanical energy that the engineering component that simultaneously dissipated causes in use, damping effect is good.
Can reveal that out through contrast Figure 11, under the effect of multidirectional shock wave, the dominant bit at common seat supports is installed
Move and stress response extreme value respectively reach 15.0cm and 80Mpa, and for the maximum displacement installed at seat supports of the present invention and
Stress response extreme value is only 3.5cm and 25Mpa respectively, is approximately the former 1/3rd, compare both response curves can simultaneously
To see, dynamic respond curve at common seat supports, with the base away from equilbrium position (support displacement is zero) certain displacement
Fluctuation change is occurred on plinth, between adjacent moment, displacement and STRESS VARIATION are larger simultaneously, and install the position at seat supports of the present invention
Move response curve fluctuation then to change around balance (support displacement is zero) position, this illustrates the automatic recovery capability of this bearing
By force, simultaneous displacement and stress fluctuation vary less, and that is, between adjacent moment, displacement and STRESS VARIATION are less, delay and reduce vibrations
The harm of ripple, this further demonstrates that, using the superelastic effect of niti material and the design feature of high damping characteristic and structure,
Response under multidirectional shock wave for the structure can largely be suppressed.In sum, entered using new material marmem
Row structure redesigns, then so that the performance of bearing is very significantly improved and improve.
Claims (5)
1. a kind of cable type Self-resetting marmem earthquake isolation bearing, including vertical antidetonation cylinder barrel（4）, vertical antidetonation lives
Plug（5）With common bias spring（6）, vertical antidetonation cylinder barrel（4）Top has manhole, and bottom welding has mounting flange
（14）, described vertical antidetonation piston（5）With common bias spring（6）It is arranged on vertical antidetonation cylinder barrel（4）In；Its feature exists
In also including Horizontal Seismic cylinder barrel（1）, Horizontal Seismic slideway（2）, connecting rod（3）, Horizontal Seismic alloy cord（7）, vertically resist
Shake alloy cord（8）And vertical columns（13）；Wherein, described Horizontal Seismic slideway（2）For bowl cover shape, center is provided with
Vertical columns（13）, vertical columns（13）Top is welded with circular baffle plate（15）, described Horizontal Seismic cylinder barrel（1）It is enclosed within fixation
Column（13）Outside, Horizontal Seismic cylinder barrel（1）Top is welded with adpting flange, and adpting flange internal diameter is less than circular baffle plate（15）'s
Diameter, Horizontal Seismic cylinder barrel（1）With vertical columns（13）By many Horizontal Seismic alloy cords（7）Connect, Horizontal Seismic closes
Spun gold rope（7）Along vertical columns（13）Outside diameter hoop is evenly arranged, every Horizontal Seismic alloy cord（7）One end pass through activity
Chuck（11）It is fixed on vertical columns（13）On, the other end passes through fixed chuck（10）It is connected at the inner tube wall of cylinder barrel；Described
Connecting rod（3）It is welded on Horizontal Seismic slideway（2）Bottom, and pass through vertical antidetonation cylinder barrel（4）On the manhole opened with perpendicular
To antidetonation piston（5）Connect, described vertical antidetonation piston（5）One group of vertical antidetonation alloy cord is passed through in upside（8）With vertical
Antidetonation cylinder barrel（4）Upper cylinder cover be connected, vertical antidetonation piston（5）One group of vertical antidetonation alloy cord is passed through in downside（8）With vertical
Antidetonation cylinder barrel（4）Lower cylinder cap be connected, described vertical antidetonation alloy cord（8）Many of setting, along vertical antidetonation cylinder barrel（4）
Inwall circumference uniform distribution, each vertical antidetonation alloy cord（8）One end pass through active chuck（11）It is fixed on the side of piston,
Other end fixed chuck（10）It is connected to the side of cylinder barrel cylinder cap；Common bias spring（6）One end is arranged on vertical antidetonation and lives
Plug（5）Lower end, the other end is arranged on vertical antidetonation cylinder barrel（4）Inner bottom surface；Described vertical antidetonation cylinder barrel（4）Inwall, correspondence
Vertical antidetonation piston（5）Circumferentially place is evenly arranged the raised smooth slideway of orientation to installed position（12）, also include universal cunning
Wheel（9）, it is fixedly mounted on Horizontal Seismic cylinder barrel（1）Bottom cross section on.
2. a kind of cable type Self-resetting marmem earthquake isolation bearing according to claim 1, its feature exists
In described Horizontal Seismic alloy cord（7）Setting three, along vertical columns（13）Outside diameter hoop is evenly arranged.
3. a kind of cable type Self-resetting marmem earthquake isolation bearing according to claim 1, its feature exists
In described Horizontal Seismic alloy cord（7）Setting five, along vertical columns（13）Outside diameter hoop is evenly arranged.
4. a kind of cable type Self-resetting marmem earthquake isolation bearing according to claim 1, its feature exists
In described Horizontal Seismic alloy cord（7）Setting four, along vertical columns（13）Outside diameter hoop is evenly arranged.
5. a kind of cable type Self-resetting marmem earthquake isolation bearing according to claim 1, its feature exists
In described Horizontal Seismic alloy cord（7）The setting six roots of sensation, along vertical columns（13）Outside diameter hoop is evenly arranged.
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| CN201310613180.6A CN103867625B (en) | 2013-11-26 | 2013-11-26 | Rope type self-reset shape memory alloy seismic isolation and seismic reduction support |
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| CN201310613180.6A CN103867625B (en) | 2013-11-26 | 2013-11-26 | Rope type self-reset shape memory alloy seismic isolation and seismic reduction support |
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| CN103867625B true CN103867625B (en) | 2017-02-08 |
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| CN104154160B (en) * | 2014-08-11 | 2017-01-11 | 浙江建科减震科技有限公司 | Self-resetting viscous damper |
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| CN107780338B (en) * | 2017-11-16 | 2024-05-24 | 温州卡耐夫电器有限公司 | Shock insulation device for track bridge |
| GB2569192B (en) * | 2017-12-11 | 2022-04-13 | Metalfacture Ltd | A sprung display case for dispensing products |
| CN108730400B (en) * | 2018-05-25 | 2019-12-06 | 北京理工大学 | Double-cylinder shock absorber for maintaining damping force and preventing cavitation distortion by using temperature control element |
| CN110374206B (en) * | 2019-07-25 | 2024-02-27 | 深圳防灾减灾技术研究院 | Shape memory alloy rope stair sliding support |
| CN112832384B (en) * | 2021-01-25 | 2022-03-22 | 广州城建职业学院 | Assembled building structure shock mount |
| CN114810925B (en) * | 2022-05-06 | 2023-05-09 | 同济大学 | Connecting device of smoothing reactor for gas damping |
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