CN102296719A - Self-resetting anti-buckling support device - Google Patents
Self-resetting anti-buckling support device Download PDFInfo
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- CN102296719A CN102296719A CN2010102193528A CN201010219352A CN102296719A CN 102296719 A CN102296719 A CN 102296719A CN 2010102193528 A CN2010102193528 A CN 2010102193528A CN 201010219352 A CN201010219352 A CN 201010219352A CN 102296719 A CN102296719 A CN 102296719A
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Abstract
The invention relates to a protection device of a building, in particular to the protection device which can reduce the impacts of external vibration. A self-resetting anti-buckling support device provided by the invention comprises a sleeve and a core plate arranged in the sleeve, and the core plate is partially or completely made of shape memory alloy material. A framework is convenient to mount, convenient to detach and strong in energy consumption capability, thereby having extensive shockproof and vibration-proof application fields.
Description
Technical field
The present invention relates to a kind of protector of building, relate in particular to a kind of protector that reduces external vibration effects.
Background technology
Traditional civil engineering structure seismic design is come earthquake energy by the elastic-plastic deformation of structural element, reach the purpose that alleviates geological process, but the power consumption of the elastoplasticity of structural element can cause damage to structure inevitably, or even the damage that can not repair.The violent earthquake that is taken place in recent years is (as U.S. Northridge in 1994, nineteen ninety-five Japan Kobe, Taiwan Ji Ji in 1999, Chinese Wenchuan in 2008) the serious structural deterioration that causes and the heavy losses of property this defective that exposed traditional Seismic Design Method.
The passive energy dissipation technology consumes the seismic energy that was consumed by structural element (for example beam column node) originally, the distortion and the damage that have alleviated structure greatly by passive energy-dissipating device is set in structure.The energy consumer of having developed at present mainly contains four classes: friction energy dissipation device, metal yield energy consumer, viscous energy consumer and viscoelastic damper.Friction energy dissipation device is easier to apply with respect to other three kinds of modes in engineering because of its energy dissipation capacity is strong, stable performance, cheap.The Pall friction energy dissipation device is proposed in nineteen eighty-two by Pall and Marsh, is applied in the civilian and industrial construction in many buildings of Canada, the U.S., India and China.On the basis of Pall frcition damper, propose T core plate friction energy dissipation device and variable friction energy dissipation device etc. again, all had Pall friction energy dissipation device four rod deformation mechanisms, therefore be referred to as Pall type frcition damper.It is strong that Pall type frcition damper has an energy dissipation capacity, do not supported the influence of flexing power.
The form of metal yield energy consumer, as disclosed Chinese patent on February 27th, 2008, publication number is CN101131005A, a kind of metal yield and friction damper associated shock-absorbing control method are disclosed, it is mainly connected steel plate and is formed by power consumption steel plate, friction steel plate, level, realize consuming energy stage by stage by friction steel plate and power consumption steel plate, make sinker have adjustable function by the length of adjusting the friction steel plate sliding tray, its effect is obviously not as friction energy dissipation device.
Anti-flexing supports and is considered to up-and-coming a kind of power consumption support, and it is a kind of a kind of energy-dissipating device that can prevent to support flexing that anti-flexing supports.The research that anti-flexing supports then is at the early-stage at home, and this energy consumer has the advantage that tonnage is big, energy dissipation capacity by force, is not subjected to frequency influence.But frcition damper is after big shake, and the support of frcition damper is because flexing and not quick detachable, so the advantage that supports in conjunction with frcition damper and anti-flexing has proposed frcition damper and anti-flexing support associated shock-absorbing control device.
In the prior art, anti-flexing supports and frcition damper adopts the ordinary steel material usually, has produced expendable plastic strain because plastic deformation takes place for it, and its application is subjected to certain restriction.Marmem is a kind of new metallic material, has elastic performance and shape-memory properties, has good market prospects so utilize marmem to make anti-flexing support.
Summary of the invention
Technique effect of the present invention can overcome above-mentioned defective, and a kind of self reset curvature-prevention bracing or strutting arrangement is provided, and it adopts new material, energy dissipation capacity is strong, be convenient to install, improve friction energy dissipation device and support easy flexing, not easily detachable shortcoming, satisfy the needs that engineering is used better.
For achieving the above object, the present invention adopts following technical scheme: it comprises sleeve pipe and is arranged on the interior central layer of sleeve pipe that central layer partly or entirely adopts the marmem material.
Buckling-restrained support claims not have bonding again and supports, be that a kind of new steel structure supports, also be that a kind of power consumption is supported, the center of buckling-restrained support is a central layer, adopt the marmem material to make, under responsive to axial force, allow bigger plastic strain, can reach the purpose of power consumption by this distortion.Complete buckling when avoiding the central layer pressurized promptly can both reach surrender when tension and pressurized, central layer is placed in the sleeve pipe, then perfusion mortar in sleeve pipe.In order to reduce or to eliminate the power of passing to mortar when central layer is subjected to spool power, and because poisson effect, central layer can expand under the pressurized situation, therefore fills screed between sleeve pipe and central layer, and the airspace layer is set between screed and the central layer.Like this, also can reach surrender fully when this is supported on pressurized, make the support compression bearing suitable, overcome the defective of traditional support pressurized flexing, improve the support bearing ability with the tension bearing capacity,
Central layer is plate shaped or cross or I-shaped or tubular or square tube shape.Central layer is plate shaped or cross or I-shaped or tubular or square tube shape.
The super-elasticity character of marmem is compared with other ordinary metallic material many advantages: at first the fatigue properties of super elastic shape memory alloy are fine, and occur damage inevitably in other material circulation, influence the life-span; Next marmem recoverable strain value very big (6%～8%), common metal material is difficult to realize; Last because austenite modulus of elasticity is greater than the martensite modulus of elasticity, and the marmem modulus of elasticity raises with temperature and increases (opposite with common metal), and this makes it still keep high elastic modulus under higher temperature.Therefore, this device that utilizes marmem to make has wide range of applications.
Because shape memory alloy material has super-elasticity and shape memory effect, this device can be undertaken from resetting by superelastic properties after shake, also can utilize shape memory effect alloy device to be resetted by heating, solve other and supported the irreducible defective in shake back, shape memory alloy material has advantage corrosion-resistant, antifatigue simultaneously, and this device has good application prospects.
Because shape memory alloy material involves great expense, can will prevent that flexing supports the part employing shape memory alloy material of central layer, partly adopts stainless steel, can reduce cost so greatly.Certainly, also can on common supporting way, adopt shape memory alloy material, also can reach damping effect preferably.
Common support frame is that support and post framework are resisted geological process jointly, and under big earthquake situations condition, support and beam, post are all wanted damaged.Like this, it is impossible that big shake back building utilizes again, and rehabilitation expense is very high.Buckling-restrained support frame is then different, and it is under geological process, and only buckling-restrained support central layer enters plasticity and consumes energy, and other agent structure still keeps elastic stage.After geological process, only need to change buckling-restrained central layer and get final product, greatly reduce shake back maintenance cost like this.
This framework is easy for installation, be convenient to dismounting, and its energy dissipation capacity is strong, has shockproof widely, antidetonation application.
Description of drawings
Fig. 1 is embodiments of the invention 1 contour structures schematic diagrames;
Fig. 2 is the core plate structure schematic diagram of embodiments of the invention 1;
Fig. 3 is embodiments of the invention 2 core plate structure schematic diagrames;
Fig. 4 is embodiments of the invention 3 core plate structure schematic diagrames;
Fig. 5 is embodiments of the invention 4 core plate structure schematic diagrames;
Fig. 6 is embodiments of the invention 5 core plate structure schematic diagrames.
The specific embodiment
As shown in Figure 1 and Figure 2, device comprises sleeve pipe 1 and is arranged on the interior central layer 2 of sleeve pipe that central layer 2 is a cross, criss-cross central layer 2 whole marmem materials that adopt.Fill screed 3 between sleeve pipe 1 and the central layer 2.Airspace layer 4 is set between screed and the central layer.
As shown in Figure 3, central layer 2 is I-shaped, and plate shaped central layer 2 parts adopt the marmem material.Other is with embodiment 1.
As shown in Figure 4, central layer 2 is plate shaped.Other is with embodiment 1.
As shown in Figure 5, central layer 2 is a tubular.Other is with embodiment 1.
Embodiment 5
As shown in Figure 6, central layer 2 is a square tube shape.Other is with embodiment 1.
Claims (4)
1. a self reset curvature-prevention bracing or strutting arrangement is characterized in that, comprises sleeve pipe and is arranged on the interior central layer of sleeve pipe, and central layer partly or entirely adopts the marmem material.
2. self reset curvature-prevention bracing or strutting arrangement according to claim 1 is characterized in that, central layer is plate shaped or cross or I-shaped or tubular or square tube shape.
3. self reset curvature-prevention bracing or strutting arrangement according to claim 2 is characterized in that, fills screed between sleeve pipe and the central layer.
4. self reset curvature-prevention bracing or strutting arrangement according to claim 3 is characterized in that, the airspace layer is set between screed and the central layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102193528A CN102296719A (en) | 2010-06-24 | 2010-06-24 | Self-resetting anti-buckling support device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102193528A CN102296719A (en) | 2010-06-24 | 2010-06-24 | Self-resetting anti-buckling support device |
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| CN102296719A true CN102296719A (en) | 2011-12-28 |
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| CN2010102193528A Pending CN102296719A (en) | 2010-06-24 | 2010-06-24 | Self-resetting anti-buckling support device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243834A (en) * | 2013-05-25 | 2013-08-14 | 吕西林 | Self-resetting support |
| CN103586658A (en) * | 2013-11-07 | 2014-02-19 | 宝钢钢构有限公司 | Square tube core penetrating assembly jig frame for anti-seismic brace |
| CN103711216A (en) * | 2013-12-30 | 2014-04-09 | 北京工业大学 | Rectangular steel tube variable-cross-section steel core anti-buckling limiting energy dissipation supporting member assembled with bolt shaped like Chinese character 'tian' |
| CN103967160A (en) * | 2014-05-07 | 2014-08-06 | 清华大学 | Oversized deformation energy consuming support |
| CN105780959A (en) * | 2016-04-21 | 2016-07-20 | 天津大学 | Local low-intensity crisscross buckling restrained supporter and manufacturing method thereof |
| CN106013496A (en) * | 2016-07-18 | 2016-10-12 | 山东兴华建设集团有限公司 | Shock-resistant reset supporting device |
| CN106121078A (en) * | 2016-06-29 | 2016-11-16 | 北京交通大学 | A kind of magnetic fluid mutative damp energy dissipation brace with reset function |
| CN108060729A (en) * | 2018-02-05 | 2018-05-22 | 沈阳建筑大学 | A kind of aluminium alloy cross inner core assembled buckling restrained brace |
| CN113430921A (en) * | 2021-08-02 | 2021-09-24 | 西南交通大学 | Can prosthetic prefabricated BRB pier plasticity hinge structure fast after shake |
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| US20010000840A1 (en) * | 1999-06-30 | 2001-05-10 | Toru Takeuchi | Buckling restrained braces and damping steel structures |
| JP2007332570A (en) * | 2006-06-12 | 2007-12-27 | Panahome Corp | Bearing wall frame |
| CN101105054A (en) * | 2007-07-10 | 2008-01-16 | 中国建筑科学研究院 | Double-layer sleeve cross buckling restrained brace with diaphragm plate |
| CN101654935A (en) * | 2009-04-25 | 2010-02-24 | 大连理工大学 | Shape memory alloy (SMA) self-resetting deformation energy-consumption damper |
| CN201730214U (en) * | 2010-06-24 | 2011-02-02 | 青岛理工大学 | Self-reset anti-flexure support device |
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2010
- 2010-06-24 CN CN2010102193528A patent/CN102296719A/en active Pending
Patent Citations (5)
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| US20010000840A1 (en) * | 1999-06-30 | 2001-05-10 | Toru Takeuchi | Buckling restrained braces and damping steel structures |
| JP2007332570A (en) * | 2006-06-12 | 2007-12-27 | Panahome Corp | Bearing wall frame |
| CN101105054A (en) * | 2007-07-10 | 2008-01-16 | 中国建筑科学研究院 | Double-layer sleeve cross buckling restrained brace with diaphragm plate |
| CN101654935A (en) * | 2009-04-25 | 2010-02-24 | 大连理工大学 | Shape memory alloy (SMA) self-resetting deformation energy-consumption damper |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243834A (en) * | 2013-05-25 | 2013-08-14 | 吕西林 | Self-resetting support |
| CN103243834B (en) * | 2013-05-25 | 2015-02-18 | 吕西林 | Self-resetting support |
| CN103586658A (en) * | 2013-11-07 | 2014-02-19 | 宝钢钢构有限公司 | Square tube core penetrating assembly jig frame for anti-seismic brace |
| CN103586658B (en) * | 2013-11-07 | 2015-12-23 | 宝钢钢构有限公司 | A kind of square tube punching assembling moulding bed of seismic support |
| CN103711216A (en) * | 2013-12-30 | 2014-04-09 | 北京工业大学 | Rectangular steel tube variable-cross-section steel core anti-buckling limiting energy dissipation supporting member assembled with bolt shaped like Chinese character 'tian' |
| CN103967160A (en) * | 2014-05-07 | 2014-08-06 | 清华大学 | Oversized deformation energy consuming support |
| CN105780959A (en) * | 2016-04-21 | 2016-07-20 | 天津大学 | Local low-intensity crisscross buckling restrained supporter and manufacturing method thereof |
| CN105780959B (en) * | 2016-04-21 | 2017-11-21 | 天津大学 | Low strong cross anti-buckling support of a kind of part and preparation method thereof |
| CN106121078A (en) * | 2016-06-29 | 2016-11-16 | 北京交通大学 | A kind of magnetic fluid mutative damp energy dissipation brace with reset function |
| CN106121078B (en) * | 2016-06-29 | 2018-04-17 | 北京交通大学 | A kind of magnetic fluid variable damping energy dissipation brace with reset function |
| CN106013496A (en) * | 2016-07-18 | 2016-10-12 | 山东兴华建设集团有限公司 | Shock-resistant reset supporting device |
| CN108060729A (en) * | 2018-02-05 | 2018-05-22 | 沈阳建筑大学 | A kind of aluminium alloy cross inner core assembled buckling restrained brace |
| CN113430921A (en) * | 2021-08-02 | 2021-09-24 | 西南交通大学 | Can prosthetic prefabricated BRB pier plasticity hinge structure fast after shake |
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Application publication date: 20111228 |