CN105735510A - Self-reposition friction energy dissipation support based on shape memory alloy - Google Patents
Self-reposition friction energy dissipation support based on shape memory alloy Download PDFInfo
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- CN105735510A CN105735510A CN201610191346.3A CN201610191346A CN105735510A CN 105735510 A CN105735510 A CN 105735510A CN 201610191346 A CN201610191346 A CN 201610191346A CN 105735510 A CN105735510 A CN 105735510A
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- channel
- section steel
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- steel channel
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
Abstract
A self-reposition friction energy dissipation support based on a shape memory alloy comprises a first steel channel (1) and a second steel channel (2). The outer end of the first steel channel (1) and the outer end of the second steel channel (2) are respectively connected with a circular pipe (7) and a connecting plate (8) in sequence. An opening of the first steel channel (1) faces downwards, an opening of the second steel channel (2) faces upwards, and contact faces of the first steel channel (1) and the second steel channel (2) are pressed tightly through a connecting piece (4) so that friction force can be provided. The right flange edge and left flange edge of the first steel channel (1) are respectively provided with four first bolts (5) distributed at equal interval. The right flange edge and left flange edge of the second steel channel (2) are respectively provided with four second bolts (5-1), and every two second bolts (5-1) are symmetrically arranged relative to the central axis of the second steel channel (2). Each first bolt (5) and the corresponding second bolt (5-1) are connected through a shape memory alloy wire (3). The self-reposition friction energy dissipation support is simple in structure, stable in dissipation capacity and easy to replace, and hardly has any residual deformation after being unloaded.
Description
Technical field
The present invention relates to structural damping technical field, a kind of Self-resetting friction damped braced based on marmem.
Background technology
Passive energy-dissipating device enjoys engineering circles to pay close attention to because of advantages such as its simple structure, cost are low and are easily maintained, is the most full-fledged and widely used vibration control technology.But, the passive energy-dissipating device of exploitation application at present also exists shortcomings, and such as viscoelastic damper is the most aging, viscous damper is difficult in maintenance, the plasticity residual deformation of mild steel damper is irrecoverable.Frcition damper has good energy dissipation capacity, and energy-dissipating property is affected less by load, loading frequency and loaded cycle number of times, but does not possess Self-resetting function with other passive damping device is the same above, there is residual displacement after geological process.
Summary of the invention
It is an object of the invention to the deficiency overcoming prior art to exist, it is provided that a kind of Self-resetting friction damped braced based on marmem, this support structure configuration is simple, energy-dissipating property is stable, substantially without residual deformation and be easily changed after unloading.
A kind of Self-resetting friction damped braced based on marmem of the present invention, including the first channel-section steel 1 and the second channel-section steel 2, the outer end of first channel-section steel the 1, second channel-section steel 2 is sequentially connected with pipe 7 and connecting plate 8 respectively；Open Side Down for first channel-section steel 1, the second channel-section steel 2 opening upwards, and the two is pressed into contact with face to provide frictional force by connector 4；First channel-section steel 1 edge of a wing the right and left is respectively arranged with four the first bolts 5 being equally spaced, and second channel-section steel 2 edge of a wing the right and left is respectively arranged with four the second bolt 5-1, and the second bolt 5-1 is symmetrical arranged relative to the second channel-section steel 2 axis two-by-two；It is connected by shape-memory alloy wire 3 between first bolt 5 with corresponding second bolt 5-1.
The web of the first channel-section steel 1 offers two rectangle bolt square holes, and the web of the second channel-section steel 2 offers two bolt circular holes, and connector 4 is bolt.
Channel-section steel is between pipe 7, be provided with end plate 6 between pipe 7 and connecting plate 8.
Connecting plate 8 end perforate, for being connected with agent structure.
Compared with prior art, the beneficial effects of the present invention is: frcition damper can provide bigger initial stiffness and additional damping, there is good energy dissipation capacity, and energy-dissipating property is affected less by load, loading frequency and loaded cycle number of times；Marmem (English full name Shape Memory Alloy, be called for short SMA) material has perception concurrently and drives function, has shape memory effect and the super-elasticity of uniqueness, does not has residual deformation after unloading.The present invention has the advantage of frcition damper and SMA material concurrently, learns from other's strong points to offset one's weaknesses, and significantly improves the damping effect of structure, improves economic benefit.Simple structure of the present invention, energy-dissipating property is stable, almost without residual deformation after unloading, and is easily changed.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the structural representation of channel-section steel.
Fig. 3 is the structural representation of pipe.
Fig. 4 is the shape-memory alloy wire connection diagram of channel-section steel side.
In figure, 1 is the first channel-section steel, and 2 is the second channel-section steel, and 3 is shape-memory alloy wire, and 4 is connector, and 5 is the first bolt, and 5-1 is the second bolt, and 6 is end plate, and 7 is pipe, and 8 is connecting plate.
Detailed description of the invention
Below by embodiment, and the invention will be further described to combine accompanying drawing.
As Figure 1-Figure 4, a kind of Self-resetting friction damped braced based on marmem, including the first channel-section steel 1 and the second channel-section steel 2, the outer end of first channel-section steel the 1, second channel-section steel 2 is sequentially connected with pipe 7 and connecting plate 8 respectively；Open Side Down for first channel-section steel 1, the second channel-section steel 2 opening upwards, and the two is pressed into contact with face to provide frictional force by connector 4；First channel-section steel 1 edge of a wing the right and left is respectively arranged with four the first bolts 5 being equally spaced, and second channel-section steel 2 edge of a wing the right and left is respectively arranged with four the second bolt 5-1, and the second bolt 5-1 is symmetrical arranged relative to the second channel-section steel 2 axis two-by-two；It is connected by shape-memory alloy wire 3 between first bolt 5 with corresponding second bolt 5-1.
The web of the first channel-section steel 1 offers two rectangle bolt square holes, and the web of the second channel-section steel 2 offers two bolt circular holes, and connector 4 is bolt.Web bolt hole width (diameter) of described first channel-section steel the 1, second channel-section steel 2 is than the wide 1-2mm of diameter of connector 4 bolt.
Channel-section steel is between pipe 7, be provided with end plate 6 between pipe 7 and connecting plate 8.
Connecting plate 8 end perforate, for being connected with agent structure.
Described each parts all use and are welded to connect.
Supporting construction of the present invention, utilizes the superelastic properties of shape-memory alloy wire to realize Self-resetting, and the frictional force utilizing bolt presses contact surface to be provided consumes energy.In Fig. 1, when energy dissipation brace left end fix, right-hand member apply pulling force time, energy dissipation brace right half part B alloy wire does not works, and left-half B alloy wire is in tension state, and channel-section steel web bolt slides to the right, and after removal pulling force, energy dissipation brace resets to initial position substantially；During Opposite side loading, energy dissipation brace right half part B alloy wire is in tension state, and channel-section steel web bolt slides to the left, and after unloading pulling force, energy dissipation brace resets to initial position substantially.And so forth.
Claims (4)
1. a Self-resetting friction damped braced based on marmem, it is characterised in that: include
First channel-section steel (1) and the second channel-section steel (2), the first channel-section steel (1), the outer end of the second channel-section steel (2) are distinguished the most successively
It is connected with pipe (7) and connecting plate (8)；Open Side Down for first channel-section steel (1), the second channel-section steel (2) opening upwards,
The two is pressed into contact with face to provide frictional force by connector (4)；First channel-section steel (1) edge of a wing the right and left
Being respectively arranged with four the first bolts (5) being equally spaced, the second channel-section steel (2) edge of a wing the right and left is respectively
Being provided with four the second bolts (5-1), the second bolt (5-1) is two-by-two relative to the second channel-section steel (2) axis
It is symmetrical arranged；By shape-memory alloy wire (3) between first bolt (5) with corresponding second bolt (5-1)
It is connected.
Support the most as claimed in claim 1, it is characterised in that: the web of described first channel-section steel (1)
Offering two rectangle bolt square holes, the web of the second channel-section steel (2) offers two bolt circular holes, connects
Part (4) is bolt.
Support the most as claimed in claim 1, it is characterised in that: channel-section steel is between pipe (7), circle
It is provided with end plate (6) between pipe (7) and connecting plate (8).
Support the most as claimed in claim 1, it is characterised in that: connecting plate (8) end perforate, use
In being connected with agent structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610191346.3A CN105735510A (en) | 2016-03-30 | 2016-03-30 | Self-reposition friction energy dissipation support based on shape memory alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610191346.3A CN105735510A (en) | 2016-03-30 | 2016-03-30 | Self-reposition friction energy dissipation support based on shape memory alloy |
Publications (1)
| Publication Number | Publication Date |
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| CN105735510A true CN105735510A (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610191346.3A Pending CN105735510A (en) | 2016-03-30 | 2016-03-30 | Self-reposition friction energy dissipation support based on shape memory alloy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938876A (en) * | 2017-11-22 | 2018-04-20 | 天津大学 | A kind of SMA silk frcition dampers suitable for spatial mesh structure |
| CN108999455A (en) * | 2018-08-15 | 2018-12-14 | 山东大学 | It is a kind of easily to reset highly energy-consuming buckling restrained brace |
| CN111535469A (en) * | 2020-07-07 | 2020-08-14 | 湖南大学 | Self-resetting support with energy consumption time sequence characteristics and assembling method thereof |
Citations (6)
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| JP2003307253A (en) * | 2002-04-12 | 2003-10-31 | Ohbayashi Corp | Frictional damper |
| CN201037277Y (en) * | 2007-04-06 | 2008-03-19 | 大连理工大学 | Energy dissipation-reposition shape memory alloy damper |
| CN102051925A (en) * | 2009-11-04 | 2011-05-11 | 青岛理工大学 | Memory alloy damping controller |
| CN202170578U (en) * | 2011-07-12 | 2012-03-21 | 长安大学 | Shape memory alloy friction composite type damper |
| CN102425242A (en) * | 2011-09-07 | 2012-04-25 | 湖南大学 | Sliding type performance-adjustable shape memory alloy damper |
| CN102720283A (en) * | 2012-06-21 | 2012-10-10 | 河北工业大学 | Superelastic shape memory alloy and friction cascade combined damper |
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2016
- 2016-03-30 CN CN201610191346.3A patent/CN105735510A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003307253A (en) * | 2002-04-12 | 2003-10-31 | Ohbayashi Corp | Frictional damper |
| CN201037277Y (en) * | 2007-04-06 | 2008-03-19 | 大连理工大学 | Energy dissipation-reposition shape memory alloy damper |
| CN102051925A (en) * | 2009-11-04 | 2011-05-11 | 青岛理工大学 | Memory alloy damping controller |
| CN202170578U (en) * | 2011-07-12 | 2012-03-21 | 长安大学 | Shape memory alloy friction composite type damper |
| CN102425242A (en) * | 2011-09-07 | 2012-04-25 | 湖南大学 | Sliding type performance-adjustable shape memory alloy damper |
| CN102720283A (en) * | 2012-06-21 | 2012-10-10 | 河北工业大学 | Superelastic shape memory alloy and friction cascade combined damper |
Non-Patent Citations (3)
| Title |
|---|
| SONGYE ZHU，YUNFENG ZHANG: "Seismic analysis of concentrically braced frame systems with self-centering friction damping braces", 《JOURNAL OF STRUCTURAL ENGINEERING》 * |
| 周云: "《粘滞阻尼减震结构设计理论及应用》", 31 August 2013, 武汉理工大学出版社 * |
| 汶川县灾后科学重建专家咨询组: "《崛起之路——汶川县"5.12"特大地震灾后科学重建研究》", 30 April 2010, 四川科学技术出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938876A (en) * | 2017-11-22 | 2018-04-20 | 天津大学 | A kind of SMA silk frcition dampers suitable for spatial mesh structure |
| CN108999455A (en) * | 2018-08-15 | 2018-12-14 | 山东大学 | It is a kind of easily to reset highly energy-consuming buckling restrained brace |
| CN111535469A (en) * | 2020-07-07 | 2020-08-14 | 湖南大学 | Self-resetting support with energy consumption time sequence characteristics and assembling method thereof |
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