CN2615225Y - Shape memory alloy damper for construction structure - Google Patents

Shape memory alloy damper for construction structure Download PDF

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Publication number
CN2615225Y
CN2615225Y CN 03246795 CN03246795U CN2615225Y CN 2615225 Y CN2615225 Y CN 2615225Y CN 03246795 CN03246795 CN 03246795 CN 03246795 U CN03246795 U CN 03246795U CN 2615225 Y CN2615225 Y CN 2615225Y
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CN
China
Prior art keywords
memory alloy
damper
shape
guide
flange
Prior art date
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CN 03246795
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Chinese (zh)
Inventor
薛素铎
董军辉
卞晓芳
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北京工业大学
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Priority to CN 03246795 priority Critical patent/CN2615225Y/en
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Publication of CN2615225Y publication Critical patent/CN2615225Y/en

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Abstract

The utility model relates to a shape memory alloy damper which is utilized in the architecture structure, wherein, the utility model is provided with a left and a right sets of shape memory alloy wire arranged up and down, one end of each alloy wire is connected with a guide shaft through a clipping block, the other end is connected with a pulling ring capable of adjusting the alloy wire value, a guide cylinder is arranged between the two alloy wires arranged up and down, the guide shaft is connected with a guide rod moving in the guide cylinder, the two end portions of the whole device are fixed by a flange, the guide rod is extended out of the opening position of a flange and movably engaged with the flange. A damper is connected with the construction structure component through the external connected device. When the damper moves, the clipping block connected on the guide shaft drives the two sets of memory alloy with one set extending and one set contracting to provide the stable damping resistance to consume the structural vibration energy, thereby reducing the relative movement between two components of the construction and achieving the purpose of shock proof and damping function to the construction structure.

Description

The marmem damper that is used for building structure
Technical field:
The utility model relates to a kind of marmem damper, belongs to building structure aseismatic, antivibration area.
Background technology:
In building construction vibration control field, use energy consumer to alleviate Passive Control strategy, the advantages such as control effective, applied range low, easy to installation and maintenance of structural earthquake and the excited power reaction of wind owing to cost, obtained paying attention to widely.Yet durability and corrosion resistance are ubiquitous problems in the present energy consumer.Easily aging as viscoelastic damper, the maintenance of viscous damper, the reliability of frcition damper under prolonged application, the plastic strain of mild steel damper such as can't recover at problem.These problems also are principal contradictions that hinders the vibration control technology large tracts of land to promote.
Marmem (Shape Memory Alloy, be called for short SMA) be a kind of new function material with shape memory, super-elasticity and damping characteristic, utilize the passive energy dissipator of super elastic shape memory alloy effect design to compare with other metal energy consumer, have durability and corrosion resistance and good, the operating period limit for length allows series of advantages such as large deformation and distortion can recover.
Abroad, in December, 1996 Proceedings of the 2 NdIn the International Workshop onStructural Control collection of thesis, utilize the shape memory effect of SMA silk to make energy consumer in " Exploiting SMA Bars in Energy Dissipators " literary composition, carry out isolation bridge.Make the SMA member be in martensitic state under the normal temperature, the vibration back utilizes the restoring force of its generation that structure is resetted by heating SMA member.
" earthquake engineering and engineering vibration ", in February, 2003, the 23rd volume first phase " New type of S MA energy consumer and structural seismic response control experimental study " literary composition discloses two kinds of shape memory alloy dissipation energy devices, the SMA silk is in austenitic state under the normal temperature, it is the SMA energy consumer to be installed in deck chien shih alloy silk produce the stretching elastic-plastic deformation with structural vibration that this energy consumer constitutes, consume the vibrational energy of structure under geological process, thereby reduce structural vibrations.
The weak point of these two kinds of SMA energy consumers is: only utilized single group of shape memory alloy wire material power consumption, thereby energy dissipation capacity is limited.
" earthquake engineering and engineering vibration ", June the 22nd in 2002 was rolled up the 3rd phase " experimental study of novel marmem damper " disclosed another kind of marmem damper, the SMA silk is in austenitic state under the normal temperature, it is two groups of shape memory alloy wire materials to be parallel to each other place in the metal cylinder that this damper constitutes, before the SMA silk is installed in damper, make two groups of SMA silks be in identical stress level by prestretched.Its structure such as Fig. 1.The weak point of this SMA damper is: the SMA silk is built-in, be unfavorable for shape memory alloy wire material is applied prestressing force, and the silk material is difficult for changing; Two cocainine materials is placed side by side simultaneously, makes the sectional area of damper obviously increase, and can influence practical application because build is roomy and restricted in a lot of actual engineerings.
Summary of the invention:
The purpose of this utility model is limited in order to overcome in the prior art energy consumer energy dissipation capacity, and build is roomy, and SMA silk material is difficult for problems such as replacing, and a kind of novel marmem damper is provided.
The technical solution of the utility model is seen Fig. 2, it includes shape-memory alloy wire, be characterised in that: two groups of shape-memory alloy wires 1 arranging about being provided with, in every group, have two shape-memory alloy wires of arranging up and down 1 at least, the one distolateral clamp 6 that passes through of every shape-memory alloy wire 1 is connected with the axis of guide 10, another is distolateral walks around little axle 11 and is connected with the tensioning ring 5 of adjustable integration spun gold degree of drawing, guide cylinder places between two shape-memory alloy wires 1 arranging up and down, the axis of guide 10 is connected with the guide peg 8 that moves in guide cylinder 7, two ends of whole device are fixed with flange, guide peg 8 stretches out from the opening part of flange 15, and with its formation movingly.
This marmem damper that is used for building structure, it is characterized in that: the utility holder of two ends of described whole device can adopt flange to fix, wherein the adjusting bolt 12 on both ends shape-memory alloy wire 1 tensioning ring 5 separately, be connected with flange 14 and the flange 15 that has mouthful respectively, and fixing by nut 13, guider screw 9 is used for adjusting bolt 12 is fixed on flange 14 and 15.Flange 14 is connected with outer connecting device 16; The external part of guide peg 8 is connected with outer connecting device 16, and outer connecting device 16 is connected with the fabric structure member.
The two ends of the marmem damper device of above technical scheme can be connected the position that building structure produces relative displacement by linkage 16, as the interlayer or the building beam column node place of frame construction.Its course of work is: when outer connecting device 16 two ends that are arranged on the damper between two parts of building are moved, guide peg 8 drives the axis of guide 10 move left and right in guide cylinder 7, connect by clamp 6, one group of SMA silk is stretched, another organizes contraction, and the tensile stress of SMA silk also correspondingly increases or reduces.Because the metallographic structure of SMA silk is an austenitic state, has superelastic properties under operating temperature, when adding unloading, two groups of stressed SMA silks provide stable damping force simultaneously.The damping action that damper forms, what reduced to produce between two parts of building moves, and realizes the purpose of building structure aseismatic, vibration damping.
This marmem damper that is used for building structure, usually adopt the shape-memory alloy wire 1 of austenitic state silk making, but also can add two groups of martensitic state silks on the position of austenitic state silk, the fixed form and the position of the shape-memory alloy wire of making according to two groups of austenitic state silks 1 are provided with.Its principle is: structural vibration by the heating to the martensitic state silk, makes original martensitic state silk reach austenitic state after finishing, and can drive the displacement of a structure recovery part, to realize the Based Intelligent Control to structure.
The utility model energy dissipation capacity is strong, can apply accurately that prestressing force, sectional area are little to the silk material, simple structure, engineering application surface are extensive.Because shape-memory alloy wire 1 is external outside guide cylinder, make that the replacing of shape-memory alloy wire is very simple again.
Description of drawings:
The structure chart of a kind of SMA damper of Fig. 1, prior art;
Fig. 2, the marmem damper sectional drawing that is used for building structure of the present utility model;
The control hysteresis illustraton of model that two kinds of energy consumers of Fig. 3, prior art provide to structure;
The control hysteresis illustraton of model that Fig. 4, the utility model SMA damper provide to structure;
Fig. 5, the utility model SMA damper performance test gained displacement---restoring force curve;
Fig. 6, the utility model SMA damper are used example sketch 1 in frame construction;
Fig. 7, the utility model SMA damper are used example sketch 2 in frame construction;
Fig. 8, the utility model SMA damper are at the application example sketch 3 that tiltedly draws in the net in the frame.
Among the figure: 1, marmem 2, inner core 3, urceolus 4, chuck 5, tensioning ring 6, clamp 7, guide cylinder 8, guide peg 9, guider screw 10, the axis of guide 11, little axle 12, adjusting bolt 13, hold-down nut 14, flange 15, flange 16, outer connecting device 17, SMA damper 18, Vierendeel girder 19, frame column 20, suspension cable 21, rack.
The specific embodiment:
Enforcement of the present utility model adopts existing processing and mounting technology to make according to Fig. 2.But after being installed to the SMA silk on the damper, carry out prestretched, can accurately regulate required prestretched value by 12 pairs of SMA silks of bolt of regulating tensioning ring 5.In order to give full play to the superelastic properties of SMA, recommend to be stretched to the half value of the maximum stretching strain of a material, promptly the silk material is in the mid point of super-elasticity platform.Guider screw 9 is used for preventing that the tensioning ring 5 of solid shape memory alloy wire 1 from twisting when shape-memory alloy wire 1 is applied prestressing force.
In this damper, the shape-memory alloy wire diameter of selecting for use is set by known technology, select parameter as follows in the present embodiment: diameter is the NiTi alloy silk of 1.00mm, and chemical composition is Ti-51at%Ni, and technology is carried out the processing of memory alloy material routinely.The phase transition temperature of material under the parent phase state is as shown in table 1.Consider that memory alloy material makes the operating temperature in civil engineering structure behind the damper, the characteristic temperature A of selected material f=-5 ℃.So just can guarantee that material keeps austenitic state in most cases, give full play to its superelastic properties.The damper physical length is 500mm, and it is 6% that memory alloy wire designs maximum stretching strain, design maximum displacement ± 4.5mm, and the prestretched strain is 3%.
Table 1:NiTi memory alloy material characteristic temperature
Characteristic temperature ???M f ????M s ????A s ???A f
Temperature value (℃) ??-64 ???-40 ???-29 ???-5
Carry out theory analysis gained Damper Control power hysteresis illustraton of model such as Fig. 4 shows according to the operating principle of damper.The marmem damper of present embodiment is carried out the pseudo-power performance experimental test of damper, damper add under the unloading frequency 0.02Hz the performance test displacement---restoring force curve such as Fig. 5 show.Comparison diagram 4 and Fig. 5 as seen, trial curve and theoretical model are very approaching.
Since damper displacement---the area size of restoring force curve institute envelope has reflected the size of the energy that damper can dissipate, and area is big more, and the energy of dissipation is big more.The visible Fig. 4 envelope of curves of comparison diagram 3 and Fig. 4 area illustrates that obviously greater than Fig. 3 curve the damping force that is provided by two groups of coefficient dampers of the present utility model of SMA silk is better than only depending on the damper of single group SMA silk effect.
The utility model marmem damper, the installation example sketch in building structure such as Fig. 6-shown in Figure 8, also can be used for other similar position in the building structure.

Claims (3)

1, a kind of marmem damper that is used for building structure, include the austenite shape memory alloy silk, of the present utility model being characterised in that: two groups of shape-memory alloy wires (1) of arranging about being provided with, in every group, have two shape-memory alloy wires of arranging up and down at least, the one distolateral clamp (6) that passes through of every shape-memory alloy wire is connected with the axis of guide (10), another distolateral little axle (11) of walking around is connected with the tensioning ring (5) of adjustable integration spun gold degree of drawing, guide cylinder places between two shape-memory alloy wires arranging up and down, the axis of guide (10) is connected with the guide peg (8) that moves in guide cylinder (7), two ends of whole device are fixed with utility holder, guide peg stretches out from the opening part of one of them fixture, and with its formation movingly.
2, a kind of marmem damper that is used for building structure according to claim 1, it is characterized in that: the utility holder of two ends of described whole device can adopt flange to fix, wherein the adjusting bolt (12) on both ends shape-memory alloy wire (1) tensioning ring (5) separately, be connected with flange (14) and the flange (15) that has mouthful respectively, and fixing by nut (13), guide peg (8) forms movingly with flange (15).
3, a kind of marmem damper that is used for building structure according to claim 1, it is characterized in that: the fixed form of the shape-memory alloy wire of making according to two groups of austenitic state silks (1) and the position is set adds the shape-memory alloy wire that two groups of martensitic state silks are made.
CN 03246795 2003-04-25 2003-04-25 Shape memory alloy damper for construction structure CN2615225Y (en)

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100410464C (en) * 2006-06-16 2008-08-13 大连理工大学 Mixed type marmem damper
CN101070715B (en) * 2007-04-06 2010-09-08 大连理工大学 Energy-consumption resetting shape memory alloy damper
CN101851963A (en) * 2010-06-23 2010-10-06 湖南大学 Piezoelectric-SMA composite variable friction intelligent damper
CN102095040A (en) * 2010-12-14 2011-06-15 哈尔滨工业大学 Method and device for seismic strengthening of shape memory alloy pipe networks
CN102121507A (en) * 2011-03-18 2011-07-13 杭州电子科技大学 Energy consumption shock absorber
CN102322493A (en) * 2011-07-20 2012-01-18 北京空间飞行器总体设计部 Composite material viscoelastic damping rod
CN102409776A (en) * 2011-09-07 2012-04-11 湖南大学 Shape memory alloy damping device with self-monitoring function
CN102425242A (en) * 2011-09-07 2012-04-25 湖南大学 Sliding type performance-adjustable shape memory alloy damper
CN102433944A (en) * 2011-12-19 2012-05-02 北京工业大学 Shape memory alloy damping and reinforcing device for wood structure
CN102782227A (en) * 2009-10-02 2012-11-14 减振技术公司 Damping system
CN104389355A (en) * 2014-12-04 2015-03-04 长安大学 Large deformation protector for anti-seismic control damper
TWI512173B (en) * 2012-06-22 2015-12-11
CN106013498A (en) * 2016-07-22 2016-10-12 大连理工大学 Multi-way high-energy-consumption self-reset shape memory alloy double-layer extrusion type lead damper
TWI588323B (en) * 2014-04-23 2017-06-21 Xuan-Wu Shu A Variable Stiffness Isolation Stiffness Stiffness Control Mechanism Adapting to Structural Isolation and Wind Resistance
CN107313643A (en) * 2017-07-11 2017-11-03 山东大学 SMA alloy silk material re-centring damper and preparation method thereof
CN108979282A (en) * 2018-07-30 2018-12-11 河南理工大学 A kind of bidirectional displacement amplification marmem damper

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100410464C (en) * 2006-06-16 2008-08-13 大连理工大学 Mixed type marmem damper
CN101070715B (en) * 2007-04-06 2010-09-08 大连理工大学 Energy-consumption resetting shape memory alloy damper
CN102782227B (en) * 2009-10-02 2014-11-26 减振技术公司 Damping system
CN102782227A (en) * 2009-10-02 2012-11-14 减振技术公司 Damping system
CN101851963A (en) * 2010-06-23 2010-10-06 湖南大学 Piezoelectric-SMA composite variable friction intelligent damper
CN101851963B (en) * 2010-06-23 2011-07-20 湖南大学 Piezoelectric-SMA composite variable friction intelligent damper
CN102095040A (en) * 2010-12-14 2011-06-15 哈尔滨工业大学 Method and device for seismic strengthening of shape memory alloy pipe networks
CN102121507A (en) * 2011-03-18 2011-07-13 杭州电子科技大学 Energy consumption shock absorber
CN102322493A (en) * 2011-07-20 2012-01-18 北京空间飞行器总体设计部 Composite material viscoelastic damping rod
CN102409776A (en) * 2011-09-07 2012-04-11 湖南大学 Shape memory alloy damping device with self-monitoring function
CN102425242A (en) * 2011-09-07 2012-04-25 湖南大学 Sliding type performance-adjustable shape memory alloy damper
CN102409776B (en) * 2011-09-07 2013-07-17 湖南大学 Shape memory alloy damping device with self-monitoring function
CN102433944B (en) * 2011-12-19 2014-06-18 北京工业大学 Shape memory alloy damping and reinforcing device for wood structure
CN102433944A (en) * 2011-12-19 2012-05-02 北京工业大学 Shape memory alloy damping and reinforcing device for wood structure
TWI512173B (en) * 2012-06-22 2015-12-11
TWI588323B (en) * 2014-04-23 2017-06-21 Xuan-Wu Shu A Variable Stiffness Isolation Stiffness Stiffness Control Mechanism Adapting to Structural Isolation and Wind Resistance
CN104389355A (en) * 2014-12-04 2015-03-04 长安大学 Large deformation protector for anti-seismic control damper
CN104389355B (en) * 2014-12-04 2016-07-06 长安大学 A kind of earthquake resistant control antivibrator large deformation protection device
CN106013498A (en) * 2016-07-22 2016-10-12 大连理工大学 Multi-way high-energy-consumption self-reset shape memory alloy double-layer extrusion type lead damper
CN106013498B (en) * 2016-07-22 2018-02-16 大连理工大学 Multidirectional highly energy-consuming Self-resetting marmem bilayer extrusion pressing type lead damper
CN107313643A (en) * 2017-07-11 2017-11-03 山东大学 SMA alloy silk material re-centring damper and preparation method thereof
CN108979282A (en) * 2018-07-30 2018-12-11 河南理工大学 A kind of bidirectional displacement amplification marmem damper

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Expiration termination date: 20130425

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