CN108049687A - Self reset curvature-prevention is supported from answering method - Google Patents
Self reset curvature-prevention is supported from answering method Download PDFInfo
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- CN108049687A CN108049687A CN201711358183.4A CN201711358183A CN108049687A CN 108049687 A CN108049687 A CN 108049687A CN 201711358183 A CN201711358183 A CN 201711358183A CN 108049687 A CN108049687 A CN 108049687A
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- inner core
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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
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- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Springs (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
- Vibration Dampers (AREA)
Abstract
Self reset curvature-prevention support belongs to building field of shock absorption, for solving the problems, such as that existing support does not have self-resetting capability, technical essential is from answering method：Energy consumption inner core is subject to the load come from building transmission, energy consumption inner core is deformed, in a load range, energy consumption inner core deformation causes its two side gear to be engaged with the rack on steel plate, deformation moves the opposite direction of gear band carry-over bar to energy consumption inner core deformation, so that the shape and position when the energy consumption inner core being connected with gear is to nature are replied；When more than the load range, the volute spring for being fixed on the upper and lower both sides of gear causes deformation by the deformation of energy consumption inner core and planar generates torque, volute spring is limited on horizontal interior wall, the restoring force that volute spring generates moves the opposite direction of gear band carry-over bar to energy consumption inner core deformation, so that the shape and position when the energy consumption inner core being connected with gear is to nature are replied.
Description
The application is application number 201710348602X, applying date 2017-05-17, denomination of invention " self reset curvature-prevention branch
The divisional application of support ".
Technical field
The invention belongs to build field of shock absorption, it is related to a kind of anti-buckling support.
Background technology
Traditional civil engineering structure support mainly has：The support shapes such as accentric support, energy-consumption angle brace, energy consumption frame support
Formula, most of supports mainly by deforming come earthquake energy, have the function that the purpose for mitigating earthquake zone.Due to structure
Component has plastoelastic characteristic, some damages, deformation inevitably occur for these energy dissipation braces, are unfavorable for the consumption of energy
It dissipates, has an impact to the stability of building.
Energy-dissipating and shock-absorbing technology is mainly：By adding passive energy-consuming device in original structure, consume originally by structure structure
The seismic energy of part consumption, slows down the deformation and damage brought by shock effect to structure significantly.The energy consumption developed at present
Device mainly has：Viscous damper, viscoelastic damper, Metallic damper and friction energy dissipation device, wherein preceding two class is known as speed phase
Pass type energy consumer, rear two class are referred to as hysteresis type energy consumer, and Metallic damper is divided into as lead damper and mild steel damper.
Hysteresis type energy consumer is using deformation and hysteresis consumed energy, and velocity correlation type energy consumer is using related with speed
Viscosity resistant function, variation from small amplitude to large amplitude obtain damping force.
Anti-buckling support (Buckling Restrained Brace, BRB) is that one kind is considered to have future support energy consumption
The shortcomings that form, anti-buckling support overcomes traditional support buckling.With full hysteresis loop under earthquake load, therefore
Excellent energy dissipation capacity and good anti-seismic performance are shown in, great popularization has been obtained in some developed countries.It is anti-to bend
Bent supporting member is made of inner core component and peripheral constraint component two parts, and under geological process, inner core component takes the lead in into the wrong
Clothes play the role of protecting main body frame, and the seismic energy that can dissipate.Have both the excellent performance of support and energy consumption, it can be with
As one of best shock-damping energy-dissipating device.Forefathers are to anti-buckling supporting base end portion additional friction damper, but frcition damper
After big shake, the support of frcition damper is due to buckling and not easy to remove.Traditional Self-resetting support resets muscle realization by adding
Runback bit function, but original state needs to apply prestressing force, can prestressing force accurately apply and prestressed loss all can be tight
Ghost image rings the energy dissipation capacity of support；Inner core replacement frequency is high with maintenance cost.
The content of the invention
In order to solve it is existing support rely primarily on inner core deformation energy consumption cause inner core in earthquake may too early it is ineffective,
It replaces and maintenance cost is high, support the problem of insensitive without self-resetting capability, and for small vibration, the present invention proposes such as
Lower technical solution：A kind of self reset curvature-prevention support, is connected including energy consumption inner core, with along the end on energy consumption inner core axial direction
Steel plate, the steel plate with rack and constraint outer sleeve；Constraint housing barrel cover is connected to the periphery of energy consumption inner core and steel plate, and constraint is outer
Sleeve has one group of opposite and parallel horizontal interior wall, and energy consumption inner core is in parallel, and two steel plates with rack are by right respectively
Claim to be fixed on two sides of the steel plate, respectively the steel plate with rack corresponding thereto and the inner wall of parallel constraint outer sleeve it
Between be equipped with rack meshed gears, and the upper and lower both sides of the gear are directly fixed described parallel there are two being limited in
Volute spring on inner wall, the gear and volute spring are fixed on this with rack by the supporting rack by being stretched out on the horizontal interior wall
Steel plate corresponding thereto and between the inner wall of parallel constraint outer sleeve.
Further, the supporting rack, the crossbearer for being fixed on the horizontal interior wall including two are located at two respectively
The top of volute spring and one run through crossbearer, volute spring and gear vertical pivot.
Further, the energy consumption inner core is the cuboid of strip, is plugged on the constraint housing that shape is long cylinder rectangle
The middle position between two horizontal interior walls inside cylinder.
Further, the volute spring is limited in by limit card slot on the horizontal interior wall.
Further, the self reset curvature-prevention support further includes baffle, connecting plate, and described baffle one end is connected to described
Steel plate, the other end connect the connecting plate.
Further, the steel plate and the steel plate with rack carry bolt hole, by bolt by steel plate and with rack
Steel plate be fastenedly connected.
Further, the volute spring of memorial alloy by being made.
Advantageous effect：The present invention installs gear in the end of support, and gear engagement is installed in two sides of inner core
Rack, and there are two be limited on the horizontal interior wall the upper and lower both sides of the gear directly fixed (contact is fixed)
Volute spring, and the gear and volute spring are fixed on the steel for carrying rack by the supporting rack by being stretched out on the horizontal interior wall
Plate corresponding thereto and between the inner wall of parallel constraint outer sleeve.Energy consumption inner core xial feed is undertaken and is scattered in spring vortex
Plane undertakes, on the one hand, greatly reduces energy consumption inner core energy consumption burden, reduces inner core unstability so that inner core replacement frequency reduces, and subtracts
Small maintenance cost；On the other hand so that spring becomes energy consumption main body, makes full use of volute spring twisting resistance, energy is undertaken to load
Power is stronger and spring is not easy unstability；Another aspect can use change of the twisting resistance to inner core while whirlpool torsional spring consumes energy
Shape is corrected, and further increases the usage time of energy consumption inner core, is provided with the self-resetting capability of support.Even more important
It is that, in order to obtain the twisting resistance of bigger, present invention uses volute spring, however volute spring can cause it to vibration sensing
It reduces, and in order to make up this defect, the engagement of the symmetrical gear in both sides and rack has been used to consume energy when primary is vibrated, and is being shaken
When fatigue resistance reaches volute spring working strength, volute spring provides big twisting resistance to resist deformation, enhances anti-unstability ability,
By the behave, on the premise of vibrations sensibility is not sacrificed, the powerful twisting resistance of volute spring still can be utilized.
Description of the drawings
Fig. 1 is constructional appearance schematic diagram.
Fig. 2 is energy consumption inner core composition schematic diagram.
Fig. 3 is sectional position figure.
Fig. 4 constrains outer sleeve decomposition texture schematic diagram.
The 1-1 sectional views of Fig. 5 Fig. 3.
The 2-2 sectional views of Fig. 6 Fig. 3.
Fig. 7 gears are schemed with volute spring composition.
Wherein：1. energy consumption inner core, 2. steel plates, 3. carry the steel plate of rack, and 4. baffles, 5. connecting plates, 6. constrain outer sleeves,
7. horizontal interior wall, 8. racks, 9. gears, 10. volute springs, 11. crossbearers, 12. vertical pivots, 13. limit card slots.
Specific embodiment
Embodiment：A kind of self reset curvature-prevention support, including energy consumption inner core 1, the steel plate being connected with the end of energy consumption inner core
2nd, the steel plate 3 with rack, baffle 4, connecting plate 5 and constraint outer sleeve 6；The constraint cover of outer sleeve 6 is connected to energy consumption inner core 1 and steel plate
2 periphery, constraint outer sleeve 6 have one group of opposite and parallel horizontal interior wall 7, and energy consumption inner core 1 is in parallel, in the energy consumption
Core 1 is the cuboid of strip, is plugged on position of the shape for the essentially center inside the constraint outer sleeve 6 of long cylinder rectangle.
Two steel plates 6 with rack are respectively symmetrically fixed on two sides of the steel plate 2, and (side is i.e. parallel with horizontal interior wall
Parallel surface), respectively the steel plate 3 with rack is equipped with and rack 8 corresponding thereto and between the inner wall of parallel constraint outer sleeve 6
Meshed gears 9, and there are two the vortexs being limited on the horizontal interior wall 7 for the directly fixation of the upper and lower both sides of the gear 9
Spring 10, the gear 9 and volute spring 10 are fixed on the steel plate 3 for carrying rack by the supporting rack by being stretched out on the horizontal interior wall
Corresponding thereto and between the inner wall of parallel constraint outer sleeve 6, the supporting rack, including two be fixed on it is described it is parallel in
The crossbearer 11 of wall is located at the top and one of two volute springs 10 through crossbearer 11, volute spring 10 and gear 9 respectively
Vertical pivot 12, the volute spring 10 are limited in by limit card slot 13 7 on the horizontal interior wall.Said program is interior to consume energy as a result,
Line centered on core, gear, volute spring, the rack of both sides are respectively symmetrical installation, and central symmetry is set so that two vortexs
The reaction force of plane is more consistent, better for distortion correction and the energy consumption of vortex plane.In this embodiment
In, nearby space is respectively provided with the possibility for installing gear spring to entire energy consumption inner core, however, in practice, it has been found that lean on
The initial position of nearly load transmission, and correspond to the end position of position in fact, i.e. space near two terminals of energy consumption inner core,
It is using volute spring formation twisted planar, it is necessary to stronger to the correction demand of energy consumption inner core, also, two positions are grasped,
It can start to correct in source, as far as possible not so that displacement transfer, so as to further reduce the section of deformation, inhibits deformation
Ability is stronger, thus we are selected using junction steel plate as inner core both ends, and the mode shape of rack is installed on junction steel plate
Into said program.
Further, in general, energy consumption inner core is understood some and is in outside constraint outer sleeve, should be partially due to straight
Exposed unfettered and support is connect, the energy consumption inner core compared inside constraint outer sleeve is more weak, easily destroys.It uses
Steel plate, gear, are combined with the /V of volute spring rack, exposed in the part of constraint outer sleeve, are substituted using steel plate in energy consumption
Core, and the mode being bolted to connection is by steel plate and Interal fixation with rack, so as to which rack be fixed, although should
Part is not covered by energy consumption inner core, but also enhances the intensity of the exposed part to a certain extent；Volute spring to consume
The displacement of the lines of energy inner core is changed into angular displacement, also, it is in end nearby (being close to exposed sheet steel sections), so that
Volute spring, meshed gears and the rack of /V and supporting rack can form frame in the exposed steel plate, have certain
Supporting role, and it is subject to the twisting resistance of volute spring, on the basis of support, greatly reduce the exposed part and acted in load
Under movement (rock and swing), so as to shorten the scope of join domain, the program realizes the purpose for preventing unstability.
In the embodiment, self reset curvature-prevention support further includes baffle, connecting plate, and described baffle one end is connected to
The steel plate, the other end connect the connecting plate.The steel plate and the steel plate with rack carry bolt hole, will by bolt
Steel plate and steel plate with rack are fastenedly connected.The volute spring of memorial alloy by being made.The volute spring is served as reasons
Volute spring body and the arm of force composition for being connected to volute spring both ends.The super elastic characteristics of marmem with it is other general
Logical metal material, which is compared, to be had many advantages：The fatigue properties of super elastic shape memory alloy first are fine, and other materials cycle
In inevitably damage, influence the service life；Secondly marmem recoverable strain value is very big, and ordinary metallic material is difficult
With realization；Finally, due to which Ovshinsky bulk modulus is more than geneva bulk modulus, shape memory alloy elastic modulus is with temperature
It raises and increases (opposite with common metal), this makes it still keep high elastic modulus at relatively high temperatures.Therefore, remembered using shape
The spring section of the device can be fabricated to by recalling alloy.
Under geological process, energy consumption inner core is subject to the load come from building transmission, and energy consumption inner core is deformed, one
In load range, energy consumption inner core deformation its two side gear is caused to be engaged with the rack on steel plate, deform make gear band carry-over bar to
Energy consumption inner core deformation opposite direction moves, so that the shape and position when the energy consumption inner core being connected with gear is to nature are returned
It is multiple；When more than the load range (restoring force of gear can not reply energy consumption inner core), the upper and lower both sides of gear are fixed on
Volute spring is caused by the deformation of energy consumption inner core to be deformed and planar generates torque, and volute spring is limited in horizontal interior wall
On, the restoring force that volute spring generates makes gear band carry-over bar be moved to energy consumption inner core deformation opposite direction, so that and gear
Shape and position when the energy consumption inner core of connection is to nature are replied.
As a result, disclosure main purpose be in order to mitigate vibrations to structure function, for the design of the anti-buckling support of tradition,
A kind of device of Self-resetting is provided, slows down the impaired of inner core.In the case of seismic events, enabling capabilities are improved.It is made into vortex bullet
Spring is added in gear, works together anti-buckling support energy consumption inner core, gear, volute spring, outer sleeve upper limit card,
The displacement of the lines integrally generated is converted into angular displacement, and it slows down the impaired of inner core with certain runback bit function.Gear solution
Certainly spring corner is too small cannot meet inner core route problem.
Material torque, generation elasticity of flexure deformation by bending after volute spring deformation square, thus spring is flat at itself
Face generates torsion.The size and torque of its deformation angle are directly proportional, have high torsion, with the twisting resistance of multi-angle away from thus apply to grow
The mechanism of time work done has characteristic not easy to fatigue.The disclosure is simple to operation to be connected by way of assembling,
Convenient disassembly and facilitate shake after reparation and daily maintenance.
In the present embodiment, spring is connected with gear by riveting method, ensures that spring can rotate together with gear.
Implementation method：Under geological process, inner core can be subject to the load come from building transmission, and inner core can generate change
Shape, inner core can drive volute spring to deform, planar generate torque, have higher torsion.Due to inner core limit card slot
In the presence of the torsion of generation can drive inner core to move, it be made to be returned to original position, therefore device has runback bit function.
When structure is subject to geological process, no matter end makes in compression or tension can be by the reply of volute spring
Power realizes Self-resetting, reduces the compressive deformation of inner core, improves energy dissipation capacity and also ensures monolithic stability after inner core surrender,
It does not influence normally to support.
The above is only the preferable specific embodiment of the invention, but the protection domain of the invention is not
This is confined to, in the technical scope that any one skilled in the art discloses in the invention, according to the present invention
The technical solution of creation and its inventive concept are subject to equivalent substitution or change, should all cover the invention protection domain it
It is interior.
Claims (1)
1. a kind of self reset curvature-prevention is supported from answering method, which is characterized in that energy consumption inner core is subject to come from building transmission
Load, energy consumption inner core is deformed, and in a load range, energy consumption inner core deformation causes the tooth on its two side gear and steel plate
Item engages, and deformation moves the opposite direction of gear band carry-over bar to energy consumption inner core deformation, so that the energy consumption being connected with gear
Shape and position when inner core is to nature are replied；When more than the load range, the vortex of the upper and lower both sides of gear is fixed on
Spring is caused by the deformation of energy consumption inner core to be deformed and planar generates torque, and volute spring is limited on horizontal interior wall, whirlpool
The restoring force that rotation spring generates moves the opposite direction of gear band carry-over bar to energy consumption inner core deformation, so that being connected with gear
Energy consumption inner core to nature when shape and position reply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711358183.4A CN108049687B (en) | 2017-05-17 | 2017-05-17 | Self-resetting buckling restrained brace self-resetting method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711358183.4A CN108049687B (en) | 2017-05-17 | 2017-05-17 | Self-resetting buckling restrained brace self-resetting method |
| CN201710348602.XA CN107023207B (en) | 2017-05-17 | 2017-05-17 | Self reset curvature-prevention support |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710348602.XA Division CN107023207B (en) | 2017-05-17 | 2017-05-17 | Self reset curvature-prevention support |
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| Publication Number | Publication Date |
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| CN108049687A true CN108049687A (en) | 2018-05-18 |
| CN108049687B CN108049687B (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710348602.XA Active CN107023207B (en) | 2017-05-17 | 2017-05-17 | Self reset curvature-prevention support |
| CN201711358197.6A Active CN108035596B (en) | 2017-05-17 | 2017-05-17 | The automatic runback device of self reset curvature-prevention support |
| CN201711358183.4A Active CN108049687B (en) | 2017-05-17 | 2017-05-17 | Self-resetting buckling restrained brace self-resetting method |
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| CN201710348602.XA Active CN107023207B (en) | 2017-05-17 | 2017-05-17 | Self reset curvature-prevention support |
| CN201711358197.6A Active CN108035596B (en) | 2017-05-17 | 2017-05-17 | The automatic runback device of self reset curvature-prevention support |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107299953B (en) * | 2017-08-21 | 2018-12-04 | 泉州市嘉鑫信息服务有限公司 | A kind of adjustable rotation viscous damper of damping force and its application |
| CN109024962A (en) * | 2018-08-10 | 2018-12-18 | 江苏德丰建设集团有限公司 | A kind of assembled architecture and assembled architecture building roof system energy-dissipating and shock-absorbing method |
| CN109267806B (en) * | 2018-10-25 | 2024-04-26 | 同济大学 | Low-prestress self-resetting energy dissipation support |
| CN109457830A (en) * | 2018-11-21 | 2019-03-12 | 大连大学 | The comprehensive shock isolating pedestal of annular shape memory alloy spring |
| CN112873225A (en) * | 2021-01-13 | 2021-06-01 | 东莞市钜力数控科技有限公司 | Safety protection device for intelligent artificial intelligence food delivery robot |
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- 2017-05-17 CN CN201710348602.XA patent/CN107023207B/en active Active
- 2017-05-17 CN CN201711358197.6A patent/CN108035596B/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107023207A (en) | 2017-08-08 |
| CN108035596A (en) | 2018-05-15 |
| CN107023207B (en) | 2019-03-01 |
| CN108049687B (en) | 2019-12-13 |
| CN108035596B (en) | 2019-12-03 |
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