CN111350290A - High-energy-consumption tension-compression and rotation restorable damper - Google Patents
High-energy-consumption tension-compression and rotation restorable damper Download PDFInfo
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- CN111350290A CN111350290A CN201811581904.2A CN201811581904A CN111350290A CN 111350290 A CN111350290 A CN 111350290A CN 201811581904 A CN201811581904 A CN 201811581904A CN 111350290 A CN111350290 A CN 111350290A
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- push
- damper
- pull piece
- limiting
- long hole
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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
Abstract
A high-energy-consumption tension-compression and rotation-recoverable damper belongs to the technical field of anti-seismic energy consumption. The invention solves the problems of complex structure and single energy consumption form of the existing restorable damper. The two side walls of the first push-pull piece are fixedly connected through three high-strength bolts arranged side by side along the horizontal direction, the second push-pull piece is provided with two first long holes side by side and a second long hole positioned between the two first long holes, the second push-pull piece is positioned between the two side walls of the first push-pull piece, the three high-strength bolts are arranged in the second long hole and the two first long holes in a one-to-one correspondence mode, the height of the second long hole in the vertical direction is smaller than the height of the first long hole in the vertical direction, and in the initial state, the four first limiting fixtures and the two second limiting fixtures are distributed in a rectangular mode and are connected with the two adjacent first limiting fixtures through shape memory alloy wires.
Description
Technical Field
The invention relates to a high-energy-consumption tension-compression and rotation-recoverable damper, and belongs to the technical field of anti-seismic energy consumption.
Background
With the development of building earthquake-resistant technology, the collapse of a building structure and the number of casualties after an earthquake are effectively controlled, and the direct and indirect economic loss problem caused by the earthquake is widely concerned. Therefore, functional recoverability of building structures and members has become a new research hotspot. The damper is used as a component for reducing the earthquake damage of the structure and consuming earthquake energy, and the functional recoverability of the damper can ensure that the main body structure of the building structure is quickly recovered after the earthquake action, thereby achieving the purpose of reducing the economic loss. At present, the following two problems are common to the restorable damper:
1. the damper is low in energy consumption, the main body structure bears more earthquake energy, the main body structure is greatly damaged, and the recovery effect after the earthquake is poor;
2. the damper has complex structure and higher manufacturing cost, and is not suitable for large-area use;
the invention patent with application number 200810010036.2 discloses a composite shape memory alloy friction damper, which achieves the purpose of vibration reduction by realizing energy consumption through sliding friction between a main plate, an auxiliary plate and a friction plate and stretching and recovering of superelastic shape memory alloy wires. However, in the scheme, the main plate, the auxiliary plate and the friction plate can only slide in the horizontal direction and cannot rotate relatively, and the energy consumption needs to be further improved. In addition, the structure of the patent is complex, the manufacturing cost is still high, and the patent is not suitable for large-area popularization.
Therefore, the design of the restorable damper which has high energy consumption and simple structure, can realize tension and compression and rotation and has important practical significance for quick restoration and damage reduction of the main body structure after the earthquake.
Disclosure of Invention
The invention aims to solve the problems of complex structure and single energy consumption form of the existing restorable damper, and further provides a restorable damper with high energy consumption, tension and compression and rotation.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a high-energy-consumption tension-compression and rotation-recoverable damper comprises a damper main body and two sets of rebound assemblies symmetrically arranged at the top end and the bottom end of the damper main body, wherein the damper main body comprises a first push-pull piece, a second push-pull piece and three high-strength bolts, the first push-pull piece is horizontally arranged, the cross section of the first push-pull piece is of a U-shaped structure, two side walls of the first push-pull piece are fixedly connected through the three high-strength bolts arranged side by side along the horizontal direction, the second push-pull piece is provided with two first long holes and a second long hole arranged between the two first long holes side by side, the second push-pull piece is arranged between the two side walls of the first push-pull piece, the three high-strength bolts penetrate through the second long holes and the two first long holes in a one-to-one correspondence manner, the height of the second long holes in the vertical direction is smaller than the height of the first long holes in the vertical direction, and the rebound assemblies arranged, Two spacing anchor clamps of second and four first spacing anchor clamps, two the spacing anchor clamps rigid coupling of second pushes away the top of drawing the piece at the second, four two bisymmetry rigid couplings of first spacing anchor clamps push away two lateral wall tops of drawing the piece at first, under the initial condition, four first spacing anchor clamps and two the spacing anchor clamps of second are the rectangle and distribute, and all connect through shape memory alloy silk between every spacing anchor clamps of second and two adjacent first spacing anchor clamps rather than.
Further, in the initial state, each high-strength bolt is respectively located at the middle position in the corresponding long hole.
Further, the central axes of the three high-strength bolts are located on the same horizontal plane.
Furthermore, the first limiting clamp and the second limiting clamp are both cylindrical structures, and in an initial state, the shape memory alloy wires sequentially slide and penetrate through the first limiting clamp and the second limiting clamp and are fixedly connected end to form a rectangular coil.
Compared with the prior art, the invention has the following effects:
when the earthquake acts, the building structure drives the damper to stretch, compress or rotate, when the damper stretches or compresses, the first push-pull piece and the second push-pull piece generate relative displacement along the radial direction of the high-strength bolt, when the damper rotates, the second push-pull piece can rotate around the radial direction of the middle high-strength bolt, the damper consumes part of earthquake energy in the process, and after the earthquake is finished, the stretching, compressing or rotating displacement is eliminated by means of the recovery capability of the SMA wire, so that the damper and the structure connected with the damper are recovered to the original state. The rapid recovery of the main structure can be realized, and the damage is effectively reduced.
The anti-rotation energy-saving device is simple in structure, can resist tension and compression and rotation, achieves high energy consumption, and is beneficial to popularization and application.
Drawings
FIG. 1 is a schematic perspective view (in an initial state) of the present invention;
FIG. 2 is a perspective view of the first push-pull member;
FIG. 3 is a perspective view of the second push-pull member;
FIG. 4 is a schematic top view of a stretched state;
FIG. 5 is a schematic front view of a stretched state;
fig. 6 is a front view schematically illustrating a rotation state.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 6, and a high energy consumption tension-compression and rotation restorable damper comprises a damper main body and two sets of rebound components symmetrically arranged at the top end and the bottom end of the damper main body, wherein the damper main body comprises a first push-pull member 1, a second push-pull member 2 and three high-strength bolts 3, the first push-pull member 1 is horizontally arranged, the cross section of the first push-pull member 1 is in a U-shaped structure, two side walls of the first push-pull member 1 are fixedly connected through the three high-strength bolts 3 arranged side by side along the horizontal direction, the second push-pull member 2 is provided with two first long holes 21 and a second long hole 22 arranged between the two first long holes 21, the second push-pull member 2 is arranged between the two side walls of the first push-pull member 1, the three high-strength bolts 3 are arranged in the second long holes 22 and the two first long holes 21 in a one-to-one correspondence manner, the height of the second long hole 22 along the vertical direction is smaller than the height of the first, the subassembly that kick-backs that is located attenuator main part top includes shape memory alloy silk 4, two spacing anchor clamps of second 5 and four first spacing anchor clamps 6, two 5 rigid couplings of spacing anchor clamps of second push away at the second and draw the top of 2, four 6 bisymmetry rigid couplings of first spacing anchor clamps push away at first two lateral wall tops of drawing 1, under the initial condition, four first spacing anchor clamps 6 and two spacing anchor clamps of second 5 are the rectangular distribution, and all connect through shape memory alloy silk 4 between every spacing anchor clamps of second 5 and two adjacent first spacing anchor clamps 6 rather than. The shape memory alloy wire 4(SMA wire) in the present application has the characteristics of superelasticity: the SMA wire can be deformed under the action of external force (the deformation range does not exceed the recoverable range, and the tensile recoverable range of the shape memory alloy wire 4 is generally 6-8%), and after the external force is unloaded, the SMA wire can be recovered to the original state (the SMA wire can be recovered to the original length after being stretched).
The two side walls of the first push-pull piece 1 are first friction plates, and the second push-pull piece 2 is a second friction plate.
Under the action of an earthquake, the damper consumes earthquake energy and deforms together with the main body structure, and can restore to an initial state together with the main body structure after the earthquake, so that residual deformation is reduced, and the normal use function of the structure is maintained. Can realize stretch-proofing, resistance to compression, anti rotation and high energy consumption, specifically if:
firstly, the present application can automatically recover to the original state after the stretching or the compression is finished, wherein the stretching and the compression states are similar, as shown in fig. 4 and 5, taking the stretching state as an example, during the stretching, the first push-pull member 1 and the second push-pull member 2 generate relative displacement along the radial direction of the high-strength bolt 3, and the SMA wire between the second limit clamp 5 and the adjacent first limit clamp 6 is elongated. After the external force is unloaded, the damper can be restored to the initial state through the restoring force of the SMA wire.
Second, this application atress back, second push-and-pull 2 can radially take place to rotate around middle high strength bolt 3, as shown in fig. 6, and the SMA silk between second limit clamp 5 and its adjacent first limit clamp 6 is elongated. After the force is unloaded, the damper can be restored to the initial state through the SMA wire.
When the device is pulled, pressed and/or rotated, the first push-pull piece 1 and the second push-pull piece 2 generate friction energy consumption, so that seismic energy input from the outside is consumed. The friction energy consumption depends on the pretightening force of the high-strength bolt 3, namely, the tighter the high-strength bolt 3 is fixed, the larger the friction energy consumption generated after the two push-pull rods slide, and the smaller the friction energy consumption is.
In the initial state, each high-strength bolt 3 is located at the middle position in its corresponding elongated hole. Ensuring that the relative tension and compression distances between the first push-pull member 1 and the second push-pull member 2 are equal.
The central axes of the three high-strength bolts 3 are positioned on the same horizontal plane.
The first limiting clamp 6 and the second limiting clamp 5 are both cylindrical structures, and in an initial state, the shape memory alloy wires 4 sequentially penetrate through the first limiting clamp 6 and the second limiting clamp 5 in a sliding mode and are fixedly connected end to form a rectangular coil. The SMA wires can slide in the limiting clamp, so that the stress uniformity of the SMA wires at all positions is ensured in the stress process of the damper, and the tensile compression or rotation resistance of the SMA wires is improved.
Claims (5)
1. The utility model provides a high power consumption is drawn and is pressed and rotate recoverable attenuator which characterized in that: the damper comprises a damper main body and two sets of rebound assemblies symmetrically arranged at the top end and the bottom end of the damper main body, wherein the damper main body comprises a first push-pull piece (1), a second push-pull piece (2) and three high-strength bolts (3), the first push-pull piece (1) is horizontally arranged, the cross section of the first push-pull piece is of a U-shaped structure, two side walls of the first push-pull piece (1) are fixedly connected through the three high-strength bolts (3) arranged side by side along the horizontal direction, the second push-pull piece (2) is provided with two first long holes (21) and a second long hole (22) positioned between the two first long holes (21) side by side, the second push-pull piece (2) is positioned between the two side walls of the first push-pull piece (1), the three high-strength bolts (3) are correspondingly arranged in the second long hole (22) and the two first long holes (21) one by one, the height of the second long hole (22) along the vertical direction is smaller than the height of the first long hole (21) along the, the rebound assembly on the top end of the damper main body comprises a shape memory alloy wire (4), two second limiting clamps (5) and four first limiting clamps (6), two second limiting clamps (5) are fixedly connected to the top end of the second push-pull part (2) in a four mode, two bisymmetry fixedly connected ends of the first limiting clamps (6) are fixedly connected to the top ends of two side walls of the first push-pull part (1) in an initial state, four first limiting clamps (6) and two second limiting clamps (5) are distributed in a rectangular mode, and each second limiting clamp (5) is connected with two adjacent first limiting clamps (6) through the shape memory alloy wire (4).
2. The high energy consumption tension and compression and rotation restorable damper as claimed in claim 1, wherein: in the initial state, each high-strength bolt (3) is respectively positioned in the middle position in the corresponding long hole.
3. The high energy consumption tension and compression and rotation restorable damper as claimed in claim 1 or 2, wherein: the central axes of the three high-strength bolts (3) are positioned on the same horizontal plane.
4. The high energy consumption tension and compression and rotation restorable damper as claimed in claim 3, wherein: the first limiting clamp (6) and the second limiting clamp (5) are both of cylindrical structures, and in an initial state, the shape memory alloy wires (4) sequentially slide and penetrate through the first limiting clamp (6) and the second limiting clamp (5) and are fixedly connected end to form a rectangular coil.
5. The high energy consumption tension and compression and rotation restorable damper as claimed in claim 1 or 2, wherein: the first limiting clamp (6) and the second limiting clamp (5) are both of cylindrical structures, and in an initial state, the shape memory alloy wires (4) sequentially slide and penetrate through the first limiting clamp (6) and the second limiting clamp (5) and are fixedly connected end to form a rectangular coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811581904.2A CN111350290A (en) | 2018-12-24 | 2018-12-24 | High-energy-consumption tension-compression and rotation restorable damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811581904.2A CN111350290A (en) | 2018-12-24 | 2018-12-24 | High-energy-consumption tension-compression and rotation restorable damper |
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| Publication Number | Publication Date |
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| CN111350290A true CN111350290A (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811581904.2A Pending CN111350290A (en) | 2018-12-24 | 2018-12-24 | High-energy-consumption tension-compression and rotation restorable damper |
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| CN (1) | CN111350290A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003097636A (en) * | 2001-09-25 | 2003-04-03 | Daiwa House Ind Co Ltd | Friction damper |
| CN1431373A (en) * | 2003-02-18 | 2003-07-23 | 东南大学 | Super elasticity pull, Press wrest damper made from memory alloy of shape of engineering structure |
| AU2004203153A1 (en) * | 2003-07-14 | 2005-02-03 | Holyoake Industries Limited | Improved Fire Damper |
| CN101851963A (en) * | 2010-06-23 | 2010-10-06 | 湖南大学 | Piezoelectric-SMA composite variable friction intelligent damper |
| CN105672493A (en) * | 2016-03-10 | 2016-06-15 | 苏州科技学院 | Shape memory alloy web friction self-reset steel frame joint |
| CN207794359U (en) * | 2018-01-30 | 2018-08-31 | 华北理工大学 | A kind of long hole-and-slot sliding friction energy-consumption damper and assembled anti-knock frame structure |
| CN108643348A (en) * | 2018-04-13 | 2018-10-12 | 东南大学 | A kind of self-centering precast concrete bean column node device with hidden bracket-friction energy-dissipating |
| CN108678166A (en) * | 2018-04-13 | 2018-10-19 | 东南大学 | A kind of Self-resetting precast concrete bean column node device of top bottom friction energy-dissipating |
-
2018
- 2018-12-24 CN CN201811581904.2A patent/CN111350290A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003097636A (en) * | 2001-09-25 | 2003-04-03 | Daiwa House Ind Co Ltd | Friction damper |
| CN1431373A (en) * | 2003-02-18 | 2003-07-23 | 东南大学 | Super elasticity pull, Press wrest damper made from memory alloy of shape of engineering structure |
| AU2004203153A1 (en) * | 2003-07-14 | 2005-02-03 | Holyoake Industries Limited | Improved Fire Damper |
| CN101851963A (en) * | 2010-06-23 | 2010-10-06 | 湖南大学 | Piezoelectric-SMA composite variable friction intelligent damper |
| CN105672493A (en) * | 2016-03-10 | 2016-06-15 | 苏州科技学院 | Shape memory alloy web friction self-reset steel frame joint |
| CN207794359U (en) * | 2018-01-30 | 2018-08-31 | 华北理工大学 | A kind of long hole-and-slot sliding friction energy-consumption damper and assembled anti-knock frame structure |
| CN108643348A (en) * | 2018-04-13 | 2018-10-12 | 东南大学 | A kind of self-centering precast concrete bean column node device with hidden bracket-friction energy-dissipating |
| CN108678166A (en) * | 2018-04-13 | 2018-10-19 | 东南大学 | A kind of Self-resetting precast concrete bean column node device of top bottom friction energy-dissipating |
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Application publication date: 20200630 |
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