CN110259242A - A kind of composite spring-SMA re-centring damper - Google Patents
A kind of composite spring-SMA re-centring damper Download PDFInfo
- Publication number
- CN110259242A CN110259242A CN201910534456.9A CN201910534456A CN110259242A CN 110259242 A CN110259242 A CN 110259242A CN 201910534456 A CN201910534456 A CN 201910534456A CN 110259242 A CN110259242 A CN 110259242A
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- CN
- China
- Prior art keywords
- steel pipe
- sma
- activity
- fixed outer
- outer steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
-
- 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
The application belongs to building structure technology field, provides steel pipe, connector, portable pillar, SMA silk ribbon and spring in a kind of composite spring-SMA re-centring damper, including fixed outer steel pipe, activity；Steel pipe is set in fixed outer steel pipe by its rear end coaxial sleeve in activity；The nested parts of steel pipe can radially be equipped with two portable pillars movably forward and backward in fixed outer steel pipe and activity；The opposite side of two portable pillars connects a connector each by one group of spring, is connected between two connectors by SMA silk ribbon.No matter connecting plate is pressured state or tension state, SMA silk ribbon is all in tension state.When the non-stress of connecting plate, the damper self-balancing；When connecting plate compression or tension, spring and SMA silk ribbon all extend.The SMA super-elasticity under tension state are taken full advantage of, effect of the earthquake to building, and the seismic energy that dissipates are alleviated, the residual deformation after guaranteeing structure shake is small, is able to achieve runback bit function.
Description
Technical field
The application belongs to building structure technology field, and in particular to structural damping energy-dissipating tech field, a kind of combined type bullet
Spring-SMA re-centring damper.
Background technique
Traditional earthquake-resistant structure is to resist natural calamity by the anti-seismic performance of enhancing structure itself, by main structure
Plastic deformation carry out dissipation energy, structure often forms the big residual deformation for being difficult to repair after shake.Utilize novel intelligent material
The super-elasticity of marmem (shape memory alloy, abbreviation SMA) and its hysteretic characteristic development are suitable for engineering knot
The passive energy-consumption self-resetting damper of structure vibration control, the aging that current other type dampers can be overcome to face, reliability,
The problems such as maintenance and residual deformation.But existing SMA re-centring damper is complicated in the presence of construction, design is cumbersome, connection difficulty
Etc. technological deficiencies.
Summary of the invention
The purpose of the application is, overcomes the deficiencies of the prior art and provide a kind of composite spring-SMA Self-resetting damping
Device has both good energy dissipation capacity and self-resetting capability, and simple structure is practical, and future in engineering applications is good.
In order to achieve the above objectives, this application provides following technical solutions:
Steel pipe, connector, activity in a kind of composite spring-SMA re-centring damper, including fixed outer steel pipe, activity
Column, SMA silk ribbon and spring；
Steel pipe is set in fixed outer steel pipe by its rear end coaxial sleeve in activity, and front end extends to outside fixed outer steel pipe；
The nested parts of steel pipe can radially be equipped with two portable pillars movably forward and backward in fixed outer steel pipe and activity；Two work
Dynamic column connects a connector each by one group of spring in the opposite side of the two, passes through SMA silk ribbon between two connectors
Connection.
Further, it is possible to carry out prestretching to SMA silk ribbon according to the actual situation, it is set to generate 2% or so prestressing force, to keep away
Exempt from the relaxation of SMA silk ribbon, and makes close between the portable pillar of front and back two.
Further, the parameters such as the cross-sectional area of SMA silk ribbon and quantity are arranged according to damper stress.
Further, the left and right sides of fixed outer steel pipe and steel pipe nested parts in activity opens up two pairs of activity post holes respectively
Hole, the both ends of portable pillar are movably installed on respectively in corresponding a pair of of the portable pillar hole in left and right, make portable pillar can be in activity
Post holes moves forward and backward in hole.
Further, the outside of portable pillar hole covers movable plate buckle, movable plate buckle by connection be bolted in
On on the outside of fixed outer steel pipe, to guarantee that portable pillar is axially moved along fixed outer steel pipe.
In a preferred embodiment, portable pillar hole is oblong along fixed outer steel pipe axial direction, in order to
The both ends of portable pillar can move forward and backward in portable pillar hole.
Further, the rear end of steel pipe is fixed with control block in activity, and the rear end of fixed outer steel pipe, which is connected with, coaxially to be set
The guide rod set, guide rod sequentially passes through the rear end of steel pipe and control block in activity, and is coaxially disposed with steel pipe in activity；By leading
To the fixed outer steel pipe of stick and control block common guarantee is overlapped with the axis of steel pipe in activity and activity in the outer steel of steel pipe edge fixation
The one-way movement of pipe axial direction.
Further, the back-end central position and control block center of steel pipe open up hole in activity, for wearing
Guide rod.
Further, fixed outer steel pipe and the upside of steel pipe in activity cover outer steel pipe cover board and interior steel pipe cover board respectively, make
It is whole to become enclosed construction.
Further, connecting plate is installed in the front end of steel pipe respectively in the rear end of fixed outer steel pipe and activity, and in connecting plate
On set connecting hole, so that damper is connect with structure.
Under geological process, portable pillar, along the axial movement of fixed outer steel pipe, and drives spring, even in portable pillar hole
Fitting and SMA ribbon motor, SMA silk ribbon tensile strain, provide saturation hysteresis loop and stable restoring force, consume seismic energy
Amount；After external force removes, spring provides initial restoring force, and portable pillar is prevented to continue to move, and SMA silk ribbon restores deformation, realizes damping
The runback bit function of device.
In this application, no matter connecting plate is pressured state or tension state, SMA silk ribbon is all in tension state.
Further, seismic fortification intensity 8 degree or more area use this damper when, can in activity steel plate rear end
Control block vicinity, viscous damper is added, to provide bigger energy dissipation capacity.
Compared with prior art, it is the advantages of the application:
In this application, no matter damper connecting plate tension or being pressurized, SMA silk ribbon is all tension state, is made full use of
The shape memory effect and superelastic effect of novel SMA material, it is ensured that the residual deformation after structure shake is small.Connecting plate not
When stress, close, damper self-balancing before and after two portable pillars；When connecting plate is pressurized, preceding portable pillar is motionless, and rear portable pillar is backward
Movement drives the elongation of spring and SMA silk ribbon；When connecting plate tension, preceding portable pillar travels forward, and rear portable pillar is motionless, equally
Drive the elongation of spring and SMA silk ribbon；The mechanical property of the application damper can be adjusted flexibly according to the actual situation, such as change
The cross-sectional area of SMA silk ribbon, silk ribbon length, change hole hole away from etc., strong applicability, use scope is wide.
Detailed description of the invention
Fig. 1 is the assembling schematic diagram of composite spring-SMA re-centring damper provided by the embodiments of the present application.
Fig. 2 is the overall schematic of composite spring-SMA re-centring damper provided by the embodiments of the present application.
Fig. 3 is the floor map of composite spring-SMA re-centring damper provided by the embodiments of the present application.
Fig. 4 is the diagrammatic cross-section of composite spring-SMA re-centring damper provided by the embodiments of the present application.
Fig. 5 is the schematic diagram of fixed outer steel pipe provided by the embodiments of the present application.
Fig. 6 is the schematic diagram of steel pipe in activity provided by the embodiments of the present application.
Fig. 7 is the schematic diagram of control block provided by the embodiments of the present application.
Fig. 8 is the schematic diagram of connector provided by the embodiments of the present application.
Fig. 9 is the schematic diagram of spring provided by the embodiments of the present application.
Figure 10 is portable pillar provided by the embodiments of the present application, the connection schematic diagram of spring, connector, SMA silk ribbon.
Figure 11 is the compression schematic diagram of composite spring-SMA re-centring damper provided by the embodiments of the present application.
Figure 12 is the tension schematic diagram of composite spring-SMA re-centring damper provided by the embodiments of the present application.
Figure label: 1 is fixed outer steel pipe, and 2 be steel pipe in activity, and 3 be outer steel pipe cover board, and 4 be interior steel pipe cover board, and 5 are
Guide rod, 6 be control block, and 7 be connector, and 8 be portable pillar, and 9 be SMA silk ribbon, and 10 be spring, and 11 be portable pillar buckle, and 12 are
Bolt is connected, 13 be connecting plate, and 14 be connecting hole.
Specific embodiment
The application is further described below in conjunction with drawings and examples.
As shown in Figures 1 to 12, in a kind of composite spring-SMA re-centring damper, including fixed outer steel pipe 1, activity
Steel pipe 2, connector 7, portable pillar 8, SMA silk ribbon 9 and spring 10.
Wherein, fixed outer steel pipe 1 and the cross section of steel pipe 2 in activity are rectangle, and the front end and top of fixed outer steel pipe 1
Portion is open, the open top of steel pipe 2 in activity；Steel pipe 2 is set in fixed outer steel pipe 1 by its rear end coaxial sleeve in activity,
Front end extends to outside fixed outer steel pipe 1；The rear end of steel pipe 2 is provided with control block 6 in activity, and control block 6 is arranged radially in work
In dynamic in steel pipe 2, the rear end of fixed outer steel pipe 1 is provided with coaxial guide rod 5, and guide rod 5 is fixed in fixed outer steel pipe 1
Rear end simultaneously passes through steel pipe 2 and control block 6 in activity, by guide rod 5 and the fixed outer steel pipe 1 of 6 common guarantee of control block and activity
One-way movement of the steel pipe 2 along fixed 1 axial direction of outer steel pipe in the axis coincidence and activity of steel pipe 2.
Further, it is passed through for the ease of guide rod 5,6 centre bit of the back-end central position of steel pipe 1 and control block in activity
It sets and opens up hole.
Further, radially direction is equipped with two portable pillars to the nested parts of fixed outer steel pipe 1 and steel pipe 2 in activity
8, two portable pillars 8 are respectively positioned on the front end of guide rod 5, the left and right sides point of fixed outer steel pipe 1 and 2 nested parts of steel pipe in activity
Two pairs of portable pillar holes are not opened up, and the both ends of portable pillar 8 are movably installed on corresponding a pair of of the portable pillar hole in left and right respectively
In, and portable pillar 8 can move forward and backward in portable pillar hole；The outside of portable pillar hole covers movable plate buckle 11, activity
Plate buckle 11 is connected on fixed 1 outside of outer steel pipe by connecting bolt 12, to guarantee that portable pillar 8 is axial along fixed outer steel pipe 1
Movement.
In a preferred embodiment, portable pillar hole can be designed as horizontally oblong, in order to activity
The both ends of column 8 can move forward and backward in portable pillar hole.
Further, two portable pillars 8 connect a connector 7 each by one group of spring 10 in the opposite side of the two,
It is connected between two connectors 7 by SMA silk ribbon 9.
In a preferred embodiment, prestretching can be carried out to SMA silk ribbon 9 according to the actual situation, it is made to generate 2% or so
Prestressing force, to avoid the relaxation of SMA silk ribbon 9, and make it is close between the portable pillar 8 of front and back two, even if be located at front end activity
Column 8 abuts the rear end of portable pillar hole, makes the front end that portable pillar hole is abutted positioned at the portable pillar 8 of rear end
Further, the parameters such as the cross-sectional area of SMA silk ribbon 9 and quantity are arranged according to damper stress.For example, if free shape
Distance is 600mm between two portable pillars 8 under state, and SMA silk ribbon 9 uses 200 diameters for the Ni-Ti SMA compositions of 1mm, then should
Damper maximum can provide the power output of about 200kN, and the shape of SMA silk ribbon 9 becomes 7% at this time.If desired it connects in damper
Multiple groups SMA silk ribbon can add hole by 2 side wall of steel pipe in fixed outer steel pipe 1 and activity, move for portable pillar 8, and connect bullet
Spring 10, connector 7 and SMA silk ribbon 9.
Further, fixed outer steel pipe 1 and the upside of steel pipe 2 in activity cover outer steel pipe cover board 3 and interior steel pipe cover board respectively
4, and connected by connection bolt 12, make whole as enclosed construction.
Further, connecting plate 13 is installed in the front end of steel pipe 2 respectively in the rear end of fixed outer steel pipe 1 and activity, and even
Connecting hole 14 is set on fishplate bar 13, so that damper is connect with structure.
Under geological process, portable pillar 8, along the axial movement of fixed outer steel pipe 1, and drives spring in portable pillar hole
10, connector 7 and SMA silk ribbon 9 move, SMA silk ribbon tensile strain, provide saturation hysteresis loop and stable restoring force, disappear
Consume seismic energy；After external force removes, spring 10 provides initial restoring force, and portable pillar 8 is prevented to continue to move, and SMA silk ribbon 9 restores to become
Shape realizes the runback bit function of damper.
In this application, no matter connecting plate 13 is pressured state or tension state, SMA silk ribbon 9 is all in tension state.?
When 13 non-stress of connecting plate, two 8 close, damper self-balancings in front and back of portable pillar；When connecting plate 13 is pressurized, positioned at front end
Portable pillar 8 is motionless, and the portable pillar 8 positioned at rear end moves backward, drives the elongation of spring 10 and SMA silk ribbon 9；13 tension of connecting plate
When, the portable pillar 8 positioned at front end travels forward, and the portable pillar 8 positioned at rear end is motionless, same spring 10 and the SMA silk ribbon 9 of driving
Elongation.
Further, seismic fortification intensity 8 degree or more area use this damper when, can in activity steel plate rear end
Control block vicinity, viscous damper is added, to provide bigger energy dissipation capacity.
The assembly method of composite spring-SMA re-centring damper provided by the present application is as follows:
Firstly, the steel structure members such as steel pipe 2, outer steel pipe cover board 3, interior steel pipe cover board 4 are in work in fixed outer steel pipe 1, activity
Factory's production is completed, and the punching using wire cutting to steel pipe 2 in fixed outer steel pipe 1 and activity, and by connecting plate 13 and activity
Interior steel pipe 2 is welded to connect.
Then, steel pipe 2 in activity is inserted in fixed outer steel pipe 1, and guide rod 5 and control block 6 is installed, by guide rod 5
In the hole for agreeing with insertion control block 6.
Portable pillar 8 is inserted in portable pillar hole again, and covers portable pillar buckle 11, and by portable pillar buckle 11 and is fixed
Outer steel pipe 1 is connected by connection bolt 12.
Spring 10 is connect with portable pillar 8 and connector 7 again, and SMA silk ribbon 9, SMA is set between two groups of connectors 7
The parameters such as cross section, the radical of silk ribbon 9 determines according to actual conditions, and SMA silk ribbon 9 can be arranged according to the actual situation it is certain pre-
Stress makes damper structure not reach self-balancing under by external force state, and makes the portable pillar 8 positioned at front end against activity post holes
The rear end in hole makes the front end that portable pillar hole is abutted positioned at the portable pillar 8 of rear end.
Interior steel pipe cover board 4 and steel plate 2 in activity are welded and be bolted again, outer steel pipe cover board 3 and fixed outer steel
Pipe 1 is welded and is bolted.
Finally, connecting plate 13, connecting plate 13 is respectively set in the front end of steel pipe 2 in the rear end of fixed outer steel pipe 1 and activity
Connecting hole 14 is set, so as to the connection of damper and structure.
So far the composite spring-SMA re-centring damper test specimen assembly is completed.
Foregoing description is only the description to the application preferred embodiment, is not any restriction to the application range.Appoint
Any change or modification what those skilled in the art makes according to the technology contents of the disclosure above should all regard
For equivalent effective embodiment, the range of technical scheme protection is belonged to.
Claims (10)
1. a kind of composite spring-SMA re-centring damper, it is characterised in that: including steel pipe in fixed outer steel pipe (1), activity
(2), connector (7), portable pillar (8), SMA silk ribbon (9) and spring (10)；
Steel pipe (2) is set in fixed outer steel pipe (1) by its rear end coaxial sleeve in activity, and front end extends to fixed outer steel pipe
(1) outside；The nested parts of steel pipe (2) can radially be equipped with two movably forward and backward in fixed outer steel pipe (1) and activity
Portable pillar (8)；Two portable pillars (8) connect a connector (7) each by one group of spring (10) in the opposite side of the two,
It is connected between two connectors (7) by SMA silk ribbon (9).
2. composite spring-SMA re-centring damper according to claim 1, it is characterised in that: to SMA silk ribbon (9) into
Row prestretching makes it generate certain prestressing force, and makes close between the portable pillar (8) of front and back two.
3. composite spring-SMA re-centring damper according to claim 2, it is characterised in that: SMA silk ribbon (9) generates
Prestressing force be 2%.
4. composite spring-SMA re-centring damper according to claim 1, it is characterised in that: fixed outer steel pipe (1)
Two pairs of portable pillar holes are opened up respectively with the left and right sides of steel pipe in activity (2) nested parts, and the both ends of portable pillar (8) respectively can
It is installed on moving forward and backward in corresponding a pair of of the portable pillar hole in left and right.
5. composite spring-SMA re-centring damper according to claim 4, it is characterised in that: outside portable pillar hole
Side covers movable plate buckle (11).
6. composite spring-SMA re-centring damper according to claim 4 or 5, it is characterised in that: portable pillar hole
It is oblong along fixed outer steel pipe (1) axial direction.
7. composite spring-SMA re-centring damper according to claim 1, it is characterised in that: steel pipe (2) in activity
Rear end be fixed with control block (6), the rear end of fixed outer steel pipe (1) is connected with the guide rod (5) being coaxially arranged, guide rod
(5) rear end and the control block (6) of steel pipe in activity (2) are sequentially passed through, and is coaxially disposed with steel pipe in activity (2).
8. composite spring-SMA re-centring damper according to claim 7, it is characterised in that: steel pipe (1) in activity
Back-end central position and control block (6) center open up hole, for wearing guide rod (5).
9. composite spring-SMA re-centring damper according to claim 1, it is characterised in that: fixed outer steel pipe (1)
Outer steel pipe cover board (3) and interior steel pipe cover board (4) are covered respectively with the upside of steel pipe in activity (2), make composite spring-SMA certainly
Resetting damper integrally becomes enclosed construction.
10. composite spring-SMA re-centring damper according to claim 1, it is characterised in that: in fixed outer steel pipe
(1) rear end and the front end of steel pipe (2) in activity are installed connecting plate (13) respectively, and set connecting hole on connecting plate (13)
(14), so that damper is connect with structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910534456.9A CN110259242A (en) | 2019-06-20 | 2019-06-20 | A kind of composite spring-SMA re-centring damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910534456.9A CN110259242A (en) | 2019-06-20 | 2019-06-20 | A kind of composite spring-SMA re-centring damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110259242A true CN110259242A (en) | 2019-09-20 |
Family
ID=67919599
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910534456.9A Pending CN110259242A (en) | 2019-06-20 | 2019-06-20 | A kind of composite spring-SMA re-centring damper |
Country Status (1)
| Country | Link |
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| CN (1) | CN110259242A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622535A (en) * | 2021-07-30 | 2021-11-09 | 兰州理工大学 | Self-resetting damper based on zinc-aluminum alloy and manufacturing method thereof |
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| CN104763069A (en) * | 2015-03-27 | 2015-07-08 | 燕山大学 | SMA-piezoelectric frictional combined damper |
| CN105625599A (en) * | 2016-03-25 | 2016-06-01 | 大连理工大学 | Reset shape memory alloy-extrusion type lead composite energy consumption damper |
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| CN107143187A (en) * | 2017-06-30 | 2017-09-08 | 燕山大学 | Multi-layer plate-type SMA Piezoelectric anisotropy frcition dampers |
| CN107574927A (en) * | 2017-07-19 | 2018-01-12 | 苏州科技大学 | A kind of SMA Self-resettings ductility shears thin plate bracing members |
| CN109024963A (en) * | 2018-08-27 | 2018-12-18 | 西安建筑科技大学 | A kind of sliding cartridge type SMA composite damper |
| CN109519498A (en) * | 2018-08-20 | 2019-03-26 | 华侨大学 | SMA Self-resetting becomes friction damping device |
-
2019
- 2019-06-20 CN CN201910534456.9A patent/CN110259242A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080065110A (en) * | 2007-01-08 | 2008-07-11 | 양경택 | Frictional shape memory alloy damper |
| CN104763069A (en) * | 2015-03-27 | 2015-07-08 | 燕山大学 | SMA-piezoelectric frictional combined damper |
| CN105625599A (en) * | 2016-03-25 | 2016-06-01 | 大连理工大学 | Reset shape memory alloy-extrusion type lead composite energy consumption damper |
| CN106968500A (en) * | 2017-04-17 | 2017-07-21 | 苏州科技大学 | A kind of SMA Self-resettings ductility bracing members |
| CN107143187A (en) * | 2017-06-30 | 2017-09-08 | 燕山大学 | Multi-layer plate-type SMA Piezoelectric anisotropy frcition dampers |
| CN107574927A (en) * | 2017-07-19 | 2018-01-12 | 苏州科技大学 | A kind of SMA Self-resettings ductility shears thin plate bracing members |
| CN109519498A (en) * | 2018-08-20 | 2019-03-26 | 华侨大学 | SMA Self-resetting becomes friction damping device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622535A (en) * | 2021-07-30 | 2021-11-09 | 兰州理工大学 | Self-resetting damper based on zinc-aluminum alloy and manufacturing method thereof |
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Application publication date: 20190920 |
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