CN108060725A - A kind of tension and compression type self reset curvature-prevention energy dissipation brace - Google Patents
A kind of tension and compression type self reset curvature-prevention energy dissipation brace Download PDFInfo
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- CN108060725A CN108060725A CN201810018314.2A CN201810018314A CN108060725A CN 108060725 A CN108060725 A CN 108060725A CN 201810018314 A CN201810018314 A CN 201810018314A CN 108060725 A CN108060725 A CN 108060725A
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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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- 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
- E04B1/36—Bearings or like supports allowing movement
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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
- E04H9/022—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising laminated structures of alternating elastomeric and rigid layers
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The present invention relates to a kind of tension and compression type self reset curvature-prevention energy dissipation brace, including pivoting support, connecting plate, memorial alloy bar, anti-buckling steel bushing, steel rubber abutments；The memorial alloy bar is mounted on inside anti-buckling steel bushing, and one end is connected with connecting plate, and the other end is movable end, and movable end is subject to the stretching /V of anti-buckling steel bushing；The end of the anti-buckling steel bushing is connected by steel rubber abutments with connecting plate, and is subject to the extruding /V of connecting plate；The pivoting support is hinged with connecting plate.The comprehensive major diameter shape memory alloy bar material of the present invention in tension under large deformation Self-resetting characteristic, steel rubber abutments when being pressurized with large deformation under Self-resetting characteristic, and the anti-buckling performance of anti-buckling support external constraint steel pipe unit, form a kind of new anti-buckling type support that can have good Self-resetting performance and energy dissipation behavior under tension, compression effect.
Description
Technical field
The present invention relates to a kind of buckling-restrained energy-dissipations, are a kind of tension and compression type self reset curvature-prevention energy consumption branch specifically
Support, belongs to civil engineering structure technical field.
Background technology
In field of civil engineering, energy-dissipating and shock-absorbing technology has been widely used in the engineerings knot such as skyscraper, Longspan Bridge
In the high wind and earthquake protection of structure, the wind shake or earthquake response of agent structure can be greatly reduced, effectively protect agent structure
Safety.
Energy-consuming shock absorber is the concrete application form of this technology, more common in current engineer application, wherein,
Anti-buckling support is one of common energy-dissipating and shock-absorbing element, its main feature is that can reach surrender in tension or compression without sending out
Raw buckling, the mechanical property compared to traditional support component are more stablized, by rational design can also obtain higher rigidity and
Good hysteretic energy ability, therefore be widely studied and applied, still, the disadvantage of the class component is in macroseism
When deformation can it is bigger, initial position can not be automatically reverted to after surrender.
Another common energy-dissipating and shock-absorbing element is marmem (Shape Memory Alloy, SMA) damper,
Using with shape memory effect and hyperelastic novel intelligent material-marmem, dissipation seismic energy while, can
It realizes compared with the Self-resetting under large plastometric set.But the research and development of marmem class damper common at present are limited to silk mostly
Material, contribute it is smaller and can only tension, make its use scope significantly limited.
The content of the invention
The purpose of the present invention is：A kind of tension and compression type self reset curvature-prevention energy dissipation brace is provided, it will be with anti-buckling characteristic
Anti-buckling support, stretch the major diameter shape memory alloy bar material under large deformation with Self-resetting characteristic and larger bearing capacity and
The steel plate laminated rubber bases three with Self-resetting characteristic is combined under compressive deformation, has complementary advantages, effectively avoids anti-buckling
Larger residual deformation and memory alloy material compressive buckling problem after support surrender.
The present invention takes following technical scheme：
A kind of tension and compression type self reset curvature-prevention energy dissipation brace, including pivoting support 1, connecting plate 3, memorial alloy bar 6, anti-
Buckling steel bushing 7, steel rubber abutments；The memorial alloy bar 6 is mounted on inside anti-buckling steel bushing 7, and one end is with being connected
Plate 3 connects, and the other end is movable end, and movable end is subject to the stretching /V of anti-buckling steel bushing；The end of the anti-buckling steel bushing 7
Portion is connected by steel rubber abutments with connecting plate 3, and is subject to the extruding /V of connecting plate 3；The pivoting support 1 and connecting plate
3 is hinged.
Further, the tension and compression type self reset curvature-prevention energy dissipation brace be symmetrical structure, left cell mesh and
Right cell mesh is connected by high-strength bolt 9 with flange arrangement, and the anti-buckling steel bushing 7 of left and right cell mesh, which each has, to be held
It receives the step structure of limit card block 8, there is cavity between a pair of of limit card block 8.
Further, the steel rubber abutments include a pair of of steel plate 4 and the rubber block 5 being disposed there between.
Further, the connecting plate 3：Top is in semicircle shape and is provided with horizontal circular hole, passes through axis pin 2 and pivoting support
1 is attached, and lower part is in hollow thin-walled tubular, the duct containing internal thread is provided at center in cylinder, with memorial alloy bar 6
Thread segment be attached, the internal diameter of thin wall cylinder should be slightly bigger than 4 outer diameter of steel plate, and the net deep steel plate rubber lamination that should be greater than 2 times
The total height of block " to cover " steel bushing of steel plate rubber lamination block and lower part, plays the role of " /V " and " protection "；It is described
Steel plate 4 is combined into steel plate rubber lamination block with rubber block 5, and two blocks of steel plates are bonded to an entirety with rubber block, and centre is opened
Hole passes through convenient for memorial alloy bar；When supporting tension, steel plate rubber lamination block is disengaged with connecting plate top, in not
" off working state " of stress；When support is pressurized, steel plate rubber lamination block receives the extruding of connecting plate and steel bushing, in " pressure
Contracting working condition "；When external force eliminates, rubber layer compressive deformation is replied, and provides certain self-resetting capability；The memory alloy bar
Material 6：Thick in both ends, intermediate thin dog bone-shaped, the thread segment comprising both ends and intermediate core segment, top is folded through steel plate rubber
The hole at layer block center, is connected, bar lower part is worn by the external screw thread of upper end with the internal thread at connecting plate thin wall cylinder center
The partition plate of steel bushing is crossed, is connected by the external screw thread of lower end with the internal thread of limit card block；When supporting tension, memory alloy bar
Material top is elongated with connecting plate, and lower part is limited block and fixes, in " drawing work state "；When external force elimination, bar
Stretcher strain reply, larger self-resetting capability is provided；When support is pressurized, memorial alloy bar top is under connecting plate
Sliding, lower part is slided with limited block into headspace simultaneously, in " off working state " not stressed；When external force elimination, stick
Material stretcher strain is replied, and provides certain self-resetting capability；The anti-buckling steel bushing 7, in the cylindrical shape that foot amplifies, one end
Positioned at the bottom of steel plate rubber lamination block and in the thin wall cylinder of connecting plate, the other end has the partition plate with centre bore, center
Hole is passed through for memorial alloy bar 6；When anti-buckling steel bushing 7 supports tension, anti-buckling steel bushing 7 is thin-wall tube-shaped with connecting plate
Into outer protection and position-limiting action, internal memorial alloy bar 6 is allowed freely to be stretched in axis direction；When support compression and steel
When plate rubber lamination block reaches compression limit, the sliding stroke of memorial alloy bar 6 also reaches capacity, on the one hand, anti-buckling steel
Sleeve 7 plays the role of pressure-bearing instead of steel plate rubber lamination block, is on the other hand also prevented from internal memorial alloy bar 6 and occurs to bend
It is bent；The limit card block 8：On the inside of the partition plate of anti-buckling steel bushing 7, limit card block is provided with internal thread duct at 8 center, with
The thread segment of memorial alloy bar 6 is connected, and plays position-limiting action in memorial alloy 6 tension of bar, and when compression can close with memory
Golden bar 6 slides；The high-strength bolt 9：Connect two groups of anti-buckling steel bushings 7.
Further, described 3 one end of connecting plate in semicircle shape and is provided with circular hole, and the same axis pin of Circularhole diameter passes through axis pin
It is attached with pivoting support；The connecting plate other end is in hollow thin-walled tubular, is provided with the hole containing internal thread at center in cylinder
Road, channel diameter and length are consistent with the end thread section size of memorial alloy bar；Thin wall cylinder internal diameter should be slightly bigger than steel plate
0.5-1mm, wall thickness are not less than 10mm, are more than 2 times of steel plate rubber lamination block total height in cylinder deeply only.
Further, the steel plate 4 and rubber block 5 press from both sides the laminated construction of one group of rubber block, the two between two groups of steel plates
Between using structure glue water secure bond in whole；The rubber block, using neoprene or natural rubber material, hardness is
55-65, rubber block are in annulus column, and internal diameter is identical with alloy bar material end diameter, and outer diameter is not less than 2 times of internal diameter, rubber block
Highly it is not less than 2 times of memorial alloy bar Deformation Demands amount；The steel plate, can be used Q235 steel, intermediate perforate, aperture with
Alloy bar material end diameter is identical, and for outer diameter not less than the sum of the outer diameter of rubber block and height, thickness takes the 1/15~1/20 of outer diameter.
Further, the memorial alloy bar 6 is divided into the first thread segment, core segment and the second thread segment three parts,
In the dog bone-shaped of " being small at both ends and big in the middle "；The diameter and length of bar core section are respectively according to the bearing capacity demand of support, deformation
Demand and Self-resetting performance requirement determine, the diameter and length of alloy bar material thread segment take 1.2-1.5 and 1.5-2 times respectively
Core segment diameter；For phase transition temperature in 400 degree of major diameter Ni-Ti alloy bar materials, maximum tension strain controlling is in 6%-
Between 8%, and ultimate tensile strength is no more than 10%；
Further, the anti-buckling steel bushing 7, the length being embedded in the thin wall cylinder of connecting plate are not less than 1 times of steel
The height of plate rubber lamination block；The internal diameter size of anti-buckling steel bushing 7 is more than limiting plate 1-2mm, and outer diameter is no more than steel
The outer diameter of plate rubber lamination block；The space of the lower partition to bottom is more than 2 times of memorial alloy bar 6 in anti-buckling steel bushing 7
Deformation Demands.
Further, the limit card block 8, in the annulus column of center drilling, embedded in anti-buckling 7 internal partition of steel bushing
Lower part, and the distance of its bottom and steel bushing bottom is not less than memorial alloy bar stretcher strain demand；Limit card block
Height and internal diameter are consistent with the thread segment length and diameter of memorial alloy bar lower end respectively, and outer diameter is not less than 2 times of internal diameter, and
There is the gap of 1-2mm between anti-buckling 7 inner wall of steel bushing.
A kind of building body frame, the beam column node area of the main body frame are equipped with gusset plate 10, using claim 1 or
Tension and compression type self reset curvature-prevention energy dissipation brace described in 4, the pivoting support 1 of the tension and compression type self reset curvature-prevention energy dissipation brace with
The gusset plate 10 is fixedly connected.
The beneficial effects of the present invention are：
1) a kind of tension and compression type self reset curvature-prevention energy dissipation brace provided, comprehensive major diameter shape memory alloy bar material by
During drawing under large deformation Self-resetting characteristic, steel rubber abutments be pressurized when with large deformation under Self-resetting characteristic, with
And the anti-buckling performance of anti-buckling support external constraint steel pipe unit, formation one kind can have good under tension, compression effect
The new anti-buckling type support of good Self-resetting performance and energy dissipation behavior.
2) energy dissipation capacity under earthquake or other accidental actions of agent structure can be promoted, reduces the damage of structure itself
Wound；
3) can modularized production, simple for production, easy to assembly, design method is relatively simple, and applicability is flexible, Ji Nengyong
It is designed in the energy-dissipating and shock-absorbing of new building, the anti-seismic reinforcement design of existing building is can be used for, in earthquake or other accidental actions
Under damping, dissipation earthquake or accidental load energy can be provided, while can be provided after earthquake or other accidental actions self-resetting capability,
Mitigate structural damage and residual deformation, reduce the repair financial cost and time cost of building structure.
4) can be mounted on has the position in moderate finite deformation space in structure, can be provided under geological process for structure certain
Energy dissipation capacity and rigidity, dissipation seismic energy；Larger restoring force can be provided again after shake, mitigates the residual deformation of structure, just
It quickly repairs in structure and is replaced with component.
Description of the drawings
Fig. 1 is application schematic diagram of the tension and compression type self reset curvature-prevention energy dissipation brace of the present invention in frame structure.
Fig. 2 is tension and compression type self reset curvature-prevention energy dissipation brace diagrammatic cross-section of the present invention.
Fig. 3 is tension and compression type self reset curvature-prevention energy dissipation brace all parts schematic diagram of the present invention.
1-pivoting support in figure, 2-axis pin, 3-connecting plate, 4-steel plate, 5-rubber block, 6-memorial alloy bar,
7-anti-buckling steel bushing, 8-limit card block, 9-high-strength bolt, 10-gusset plate, 11-main body frame.
Specific embodiment
The present invention is further described in the following with reference to the drawings and specific embodiments.
Embodiment：
Referring to Fig. 2-Fig. 3, tension and compression type self reset curvature-prevention energy dissipation brace, including pivoting support 1, connecting plate 3, memorial alloy
Bar 6, anti-buckling steel bushing 7, steel rubber abutments；The memorial alloy bar 6 is mounted on inside anti-buckling steel bushing 7, and one
End is connected with connecting plate 3, and the other end is movable end, and movable end is subject to the stretching /V of anti-buckling steel bushing；The anti-buckling steel
The end of sleeve 7 is connected by steel rubber abutments with connecting plate 3, and is subject to the extruding /V of connecting plate 3；The pivoting support
1 is hinged with connecting plate 3.
In this embodiment, referring to Fig. 2, the tension and compression type self reset curvature-prevention energy dissipation brace is symmetrical structure,
Left cell mesh is connected with right cell mesh by high-strength bolt 9 with flange arrangement, the anti-buckling steel bushing of left and right cell mesh
7 each have the step structure for accommodating limit card block 8, have cavity between a pair of of limit card block 8.
In this embodiment, referring to Fig. 2, the steel rubber abutments include a pair of of steel plate 4 and the rubber being disposed there between
Block 5.
In this embodiment, referring to Fig. 2, the connecting plate 3：Top is in semicircle shape and is provided with horizontal circular hole, passes through axis pin 2
It is attached with pivoting support 1, lower part is in hollow thin-walled tubular, the duct containing internal thread is provided at center in cylinder, with note
The thread segment for recalling alloy bar material 6 is attached, and the internal diameter of thin wall cylinder should be slightly bigger than 4 outer diameter of steel plate, and the net deep steel that should be greater than 2 times
The total height of plate rubber lamination block " to cover " steel bushing of steel plate rubber lamination block and lower part, plays " /V " and " anti-
Shield " effect；The steel plate 4 and rubber block 5 are combined into steel plate rubber lamination block, two blocks of steel plates and rubber block be bonded to one it is whole
Body, and centre is provided with hole, is passed through convenient for memorial alloy bar；When supporting tension, steel plate rubber lamination block and connecting plate top
It disengages, in " off working state " not stressed；When support is pressurized, steel plate rubber lamination block receives squeezing for connecting plate and steel bushing
Pressure, in " compression work state "；When external force eliminates, rubber layer compressive deformation is replied, and provides certain self-resetting capability；It is described
Memorial alloy bar 6：Thick in both ends, intermediate thin dog bone-shaped, the thread segment comprising both ends and intermediate core segment, top passes through
The hole at steel plate rubber lamination block center, is connected by the external screw thread of upper end with the internal thread at connecting plate thin wall cylinder center,
Bar lower part passes through the partition plate of steel bushing, is connected by the external screw thread of lower end with the internal thread of limit card block；When supporting tension,
Memorial alloy bar top is elongated with connecting plate, and lower part is limited block and fixes, in " drawing work state "；Work as external force
It eliminates, the stretcher strain of bar is replied, and provides larger self-resetting capability；Support be pressurized when, memorial alloy bar top with
Connecting plate glides, and lower part is slided with limited block into headspace simultaneously, in " off working state " not stressed；Work as external force
It eliminates, bar drawing deformation-recovery provides certain self-resetting capability；The anti-buckling steel bushing 7, the cylinder amplified in foot
Shape, one end be located at the bottom of steel plate rubber lamination block and embedded in connecting plate thin wall cylinder in, the other end have with centre bore every
Plate, centre bore are passed through for memorial alloy bar 6；When anti-buckling steel bushing 7 supports tension, anti-buckling steel bushing 7 and connecting plate
It is thin-wall tube-shaped into outer protection and position-limiting action, internal memorial alloy bar 6 is allowed freely to be stretched in axis direction；Work as support
It is pressurized and steel plate rubber lamination block is when reaching compression limit, the sliding stroke of memorial alloy bar 6 also reaches capacity, on the one hand,
Anti-buckling steel bushing 7 plays the role of pressure-bearing instead of steel plate rubber lamination block, is on the other hand also prevented from internal memorial alloy bar 6
Generation buckling；The limit card block 8：On the inside of the partition plate of anti-buckling steel bushing 7, limit card block is provided with internal thread at 8 center
Duct is connected with the thread segment of memorial alloy bar 6, plays position-limiting action in memorial alloy 6 tension of bar, can be with during compression
Memorial alloy bar 6 slides；The high-strength bolt 9：Connect two groups of anti-buckling steel bushings 7.
In this embodiment, referring to Fig. 2, described 3 one end of connecting plate is in semicircle shape and is provided with circular hole, the same pin of Circularhole diameter
Axis is attached by axis pin and pivoting support；The connecting plate other end is in hollow thin-walled tubular, is provided with and contains at center in cylinder
The duct of internal thread, channel diameter and length are consistent with the end thread section size of memorial alloy bar；Thin wall cylinder internal diameter should
Slightly larger than steel plate 0.5-1mm, wall thickness is not less than 10mm, is more than 2 times of steel plate rubber lamination block total height in cylinder deeply only.
In this embodiment, the lamination of one group of rubber block is pressed from both sides between two groups of steel plates referring to Fig. 2, the steel plate 4 and rubber block 5
Structure, between the two using structure glue water secure bond in whole；The rubber block, using neoprene or natural rubber material
Material, hardness 55-65, rubber block are in annulus column, and internal diameter is identical with alloy bar material end diameter, and outer diameter is not less than the 2 of internal diameter
Times, rubber block height is not less than 2 times of memorial alloy bar Deformation Demands amount；The steel plate, can be used Q235 steel, and centre is opened
Hole, aperture is identical with alloy bar material end diameter, and for outer diameter not less than the sum of the outer diameter of rubber block and height, thickness takes the 1/ of outer diameter
15~1/20.
In this embodiment, referring to Fig. 2, the memorial alloy bar 6 is divided into the first thread segment, core segment and the second spiral shell
The dog bone-shaped of line section three parts, in being small at both ends and big in the middle "；The diameter and length of bar core section are respectively according to the carrying of support
Power demand, Deformation Demands and Self-resetting performance requirement determine that the diameter and length of alloy bar material thread segment take 1.2-1.5 respectively
With 1.5-2 times of core segment diameter；For major diameter Ni-Ti alloy bar material of the phase transition temperature at 400 degree, maximum tension strain
Control is between 6%-8%, and ultimate tensile strength is no more than 10%；
In this embodiment, referring to Fig. 2, the anti-buckling steel bushing 7, the length in the thin wall cylinder of embedded connecting plate is small
In the height of 1 times of steel plate rubber lamination block；The internal diameter size of anti-buckling steel bushing 7 is more than limiting plate 1-2mm, outer diameter
No more than the outer diameter of steel plate rubber lamination block；Memory of the lower partition to the space of bottom more than 2 times is closed in anti-buckling steel bushing 7
The Deformation Demands of golden bar 6.
In this embodiment, referring to Fig. 2, the limit card block 8, in the annulus column of center drilling, embedded in anti-buckling steel
The lower part of 7 internal partition of sleeve, and the distance of its bottom and steel bushing bottom is not less than memorial alloy bar stretcher strain demand；
The height and internal diameter of limit card block are consistent with the thread segment length and diameter of memorial alloy bar lower end respectively, and outer diameter is not less than 2
Times internal diameter, and have between anti-buckling 7 inner wall of steel bushing the gap of 1-2mm.
It applies when on main body frame, referring to Fig. 1, building body frame, the beam column node area of the main body frame is equipped with
Gusset plate 10, using the tension and compression type self reset curvature-prevention energy dissipation brace described in claim 1 or 4, the tension and compression type Self-resetting is prevented
The pivoting support 1 of energy consuming support is fixedly connected with the gusset plate 10.
Specific implementation process details is as follows：
Certain three layer three across plane frame structure, floor height and span are 3600mm, and Reinforcement Design is according to existing related specifications
It determines；Story drift limit value of the structure under big shake effect is 1/50, and appearance is used to be carried out for circular this patent to it
Energy-dissipating and shock-absorbing designs, and two groups of skewed horizontal loads are arranged in two frames of its first floor.
According to agent structure feature and demand, it is assumed that every group of support required design load is 50t, and required deflection is
72mm.First, the Ni-Ti memorial alloy bars of Xi'an Saite Co., Ltd production are selected, it is known that the bar core section is a diameter of
During 18mm, it is possible to provide peak load be 30t；According to the design load demand of the present embodiment, 1.5 times of safety coefficient is taken, often
Group support required design load is 75t, thus calculates the required a diameter of 28mm, end diameter 36mm of alloy bar material；Every group
The Deformation Demands amount of memorial alloy bar is the half of total deformation demand, i.e. 36mm determines stick with the strain level for being no more than 6%
The core segment length of material is 600mm, and two sections of screw thread segment length are 50mm, and the total length of single group memorial alloy bar is 700mm.
Determine that rubber block internal diameter is highly 72mm for 36m, outer diameter 72mm；Steel plate internal diameter be 36mm, outer diameter 144mm,
Thickness takes 8mm；Limit card block internal diameter is 36mm, outer diameter 72mm, is highly 50mm, limit card block bottom and steel bushing bottom away from
From for 55mm.
Steel bushing is determined using Q235 steel, internal diameter 76mm, wall thickness takes 20mm, then outer diameter is 116mm, steel bushing it is total
Length is 617mm.
The internal diameter of connecting plate lower part thin wall cylinder is determined as 146mm, wall thickness takes 12mm, outer diameter 170mm, and net depth is in cylinder
176mm。
It can determine required axis pin and bolt by conventional method and pivoting support is determined according to node type of attachment
Design.
According to the geometry designs space of symmetry and agent structure, appropriate adjustment is carried out, that completes entirely to support sets
Meter.
The present invention provides a kind of tension and compression type self reset curvature-prevention energy dissipation brace, comprehensive major diameter shape memory alloy bar material
In tension under large deformation Self-resetting characteristic, steel rubber abutments when being pressurized with large deformation under Self-resetting it is special
Property and anti-buckling support external constraint steel pipe unit anti-buckling performance, formed a kind of can have under tension, compression effect
There is the new anti-buckling type support of good Self-resetting performance and energy dissipation behavior.The present invention can be promoted agent structure earthquake or its
Energy dissipation capacity under its accidental action, reduces the damage of structure itself, at the same after the earthquake or other accidental actions based on
Body structure provides self-resetting capability, mitigates structural damage and residual deformation, reduces the financial cost and time cost of structural repair.
The above are the preferred embodiment of the present invention, those of ordinary skill in the art can also carry out various changes on this basis
It changes or improves, on the premise of the total design of the present invention is not departed from, these conversion or improve should all belong to that the present invention claims guarantors
Within the scope of shield.
Claims (9)
1. a kind of tension and compression type self reset curvature-prevention energy dissipation brace, it is characterised in that：
Including pivoting support (1), connecting plate (3), memorial alloy bar (6), anti-buckling steel bushing (7), steel rubber abutments；
The memorial alloy bar (6) is mounted on anti-buckling steel bushing (7) inside, and one end is connected with connecting plate (3), and the other end is
Movable end, movable end are subject to the stretching /V of anti-buckling steel bushing；
The end of the anti-buckling steel bushing (7) is connected by steel rubber abutments with connecting plate (3), and is subject to connecting plate (3)
Extruding /V；
The pivoting support (1) is hinged with connecting plate (3).
2. tension and compression type self reset curvature-prevention energy dissipation brace as described in claim 1, it is characterised in that：The tension and compression type Self-resetting
Buckling-restrained energy-dissipation passes through high-strength bolt (9) and flange knot for symmetrical structure, left cell mesh and right cell mesh
Structure connects, and the anti-buckling steel bushing (7) of left and right cell mesh each has the step structure for accommodating limit card block (8), a pair of limit
There is cavity between position fixture block (8).
3. tension and compression type self reset curvature-prevention energy dissipation brace as described in claim 1, it is characterised in that：The steel rubber abutments
Including a pair of of steel plate (4) and the rubber block (5) being disposed there between.
4. tension and compression type self reset curvature-prevention energy dissipation brace as claimed in claim 3, it is characterised in that：
The connecting plate (3)：Top is in semicircle shape and is provided with horizontal circular hole, is connected by axis pin (2) and pivoting support (1)
It connects, lower part is in hollow thin-walled tubular, is provided with the duct containing internal thread at center in cylinder, the spiral shell with memorial alloy bar (6)
Line section is attached, and the internal diameter of thin wall cylinder should be slightly bigger than steel plate (4) outer diameter, and the net deep steel plate rubber lamination block that should be greater than 2 times
Total height, " to cover " steel bushing of steel plate rubber lamination block and lower part, play the role of " /V " and " protection "；
The steel plate (4) and rubber block (5) are combined into steel plate rubber lamination block, two blocks of steel plates and rubber block be bonded to one it is whole
Body, and centre is provided with hole, is passed through convenient for memorial alloy bar；When supporting tension, steel plate rubber lamination block and connecting plate top
It disengages, in " off working state " not stressed；When support is pressurized, steel plate rubber lamination block receives squeezing for connecting plate and steel bushing
Pressure, in " compression work state "；When external force eliminates, rubber layer compressive deformation is replied, and provides certain self-resetting capability；
The memorial alloy bar (6)：It is thick in both ends, intermediate thin dog bone-shaped, the thread segment comprising both ends and intermediate core
Section, top pass through the hole at steel plate rubber lamination block center, at the external screw thread of upper end and connecting plate thin wall cylinder center
Screw thread is connected, and bar lower part passes through the partition plate of steel bushing, is connected by the external screw thread of lower end with the internal thread of limit card block；
When supporting tension, memorial alloy bar top is elongated with connecting plate, and lower part is limited block and fixes, in " drawing work
State "；When external force eliminates, the stretcher strain of bar is replied, and provides larger self-resetting capability；When support is pressurized, memorial alloy
Bar top glides with connecting plate, and lower part is slided with limited block into headspace simultaneously, in " the inoperative not stressed
State "；When external force eliminates, bar drawing deformation-recovery provides certain self-resetting capability；
The anti-buckling steel bushing (7), in the cylindrical shape that foot amplifies, one end is located at the bottom of steel plate rubber lamination block and is embedded in
In the thin wall cylinder of connecting plate, the other end has the partition plate with centre bore, and centre bore is passed through for memorial alloy bar (6)；It is anti-buckling
When steel bushing (7) supports tension, anti-buckling steel bushing (7) is thin-wall tube-shaped into outer protection and position-limiting action with connecting plate, permits
Perhaps internal memorial alloy bar (6) is freely stretched in axis direction；When support compression and steel plate rubber lamination block reaches compression
During the limit, the sliding stroke of memorial alloy bar (6) also reaches capacity, on the one hand, anti-buckling steel bushing (7) replaces steel plate rubber
Lamination block plays the role of pressure-bearing, is on the other hand also prevented from internal memorial alloy bar (6) and buckling occurs；
The limit card block (8)：On the inside of the partition plate of anti-buckling steel bushing (7), internal thread is provided at limit card block (8) center
Duct is connected with the thread segment of memorial alloy bar (6), plays position-limiting action in memorial alloy bar (6) tension, during compression
It can be slided with memorial alloy bar (6)；
The high-strength bolt (9)：Connect two groups of anti-buckling steel bushings (7).
5. tension and compression type self reset curvature-prevention energy dissipation brace as claimed in claim 4, it is characterised in that：The connecting plate (3) one
End is in semicircle shape and is provided with circular hole, and the same axis pin of Circularhole diameter is attached by axis pin and pivoting support；The connecting plate other end is in
Hollow thin-walled tubular is provided with the duct containing internal thread, channel diameter and length and memorial alloy bar in cylinder at center
End thread section size is consistent；Thin wall cylinder internal diameter should be slightly bigger than steel plate 0.5-1mm, and wall thickness is not less than 10mm, and net depth is big in cylinder
In 2 times of steel plate rubber lamination block total height.
6. tension and compression type self reset curvature-prevention energy dissipation brace as claimed in claim 4, it is characterised in that：The steel plate (4) and rubber
Blob of viscose (5) presss from both sides the laminated construction of one group of rubber block between two groups of steel plates, between the two using structure glue water secure bond in whole；
The rubber block, using neoprene or natural rubber material, hardness 55-65, rubber block is in annulus column, internal diameter and alloy
Bar end diameter is identical, and outer diameter is not less than 2 times of internal diameter, and rubber block height is not less than memorial alloy bar Deformation Demands amount
2 times；The steel plate, can be used Q235 steel, intermediate perforate,
Aperture is identical with alloy bar material end diameter, and for outer diameter not less than the sum of the outer diameter of rubber block and height, thickness takes outer diameter
1/15~1/20.
7. tension and compression type self reset curvature-prevention energy dissipation brace as claimed in claim 4, it is characterised in that：The memorial alloy bar
(6), it is divided into the first thread segment, core segment and the second thread segment three parts, in the dog bone-shaped of " being small at both ends and big in the middle "；Bar core
The diameter and length of heart section determine respectively according to the bearing capacity demand of support, Deformation Demands and Self-resetting performance requirement, alloy
The diameter and length of bar thread segment take the core segment diameter of 1.2-1.5 and 1.5-2 times respectively；For phase transition temperature at 400 degree
Major diameter Ni-Ti alloy bar materials, maximum tension strain controlling between 6%-8%, and ultimate tensile strength be no more than 10%；
8. tension and compression type self reset curvature-prevention energy dissipation brace as claimed in claim 4, it is characterised in that：The anti-buckling steel bushing
(7), the height of steel plate rubber lamination block of the length not less than 1 times in the thin wall cylinder of embedded connecting plate；Anti-buckling steel bushing (7)
Internal diameter size be more than limiting plate 1-2mm, outer diameter be no more than steel plate rubber lamination block outer diameter；Anti-buckling steel bushing
(7) Deformation Demands of memorial alloy bar (6) of the lower partition to the space of bottom more than 2 times in.
9. tension and compression type self reset curvature-prevention energy dissipation brace as claimed in claim 4, it is characterised in that：The limit card block (8),
In the annulus column of center drilling, embedded in the lower part of anti-buckling steel bushing (7) internal partition, and its bottom and steel bushing bottom away from
From not less than memorial alloy bar stretcher strain demand；The height and internal diameter of limit card block respectively with memorial alloy bar lower end
Thread segment length and diameter it is consistent, outer diameter is not less than 2 times of internal diameter, and has 1-2mm between anti-buckling steel bushing (7) inner wall
Gap.
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| CN201810018314.2A CN108060725B (en) | 2018-01-09 | 2018-01-09 | A kind of tension and compression type self reset curvature-prevention energy dissipation brace |
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|---|---|---|---|
| CN201810018314.2A CN108060725B (en) | 2018-01-09 | 2018-01-09 | A kind of tension and compression type self reset curvature-prevention energy dissipation brace |
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| CN108060725A true CN108060725A (en) | 2018-05-22 |
| CN108060725B CN108060725B (en) | 2019-11-12 |
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|---|---|---|---|
| CN201810018314.2A Active CN108060725B (en) | 2018-01-09 | 2018-01-09 | A kind of tension and compression type self reset curvature-prevention energy dissipation brace |
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|---|---|---|---|---|
| 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 |
| CN109505364A (en) * | 2018-11-29 | 2019-03-22 | 青岛理工大学 | Self-resetting energy-consuming steel support with shape memory alloy damper |
| CN111058546A (en) * | 2020-01-02 | 2020-04-24 | 广州大学 | Buckling restrained brace with tension and compression functions and design method thereof |
| CN111706141A (en) * | 2020-06-05 | 2020-09-25 | 重庆大学 | Full-assembly three-section type buckling-restrained energy-dissipation brace |
| CN111963608A (en) * | 2020-07-21 | 2020-11-20 | 西安建筑科技大学 | Self-resetting shearing type lead damper |
| WO2021179427A1 (en) * | 2020-03-10 | 2021-09-16 | 青岛理工大学 | Frame-type replaceable buckling-preventing and shock-absorbing energy consumption apparatus and usage method |
| CN114263291A (en) * | 2022-01-29 | 2022-04-01 | 哈尔滨工业大学 | Anti-buckling support system with elastic pin connecting end part being reinforced and adjustable in length and installation method |
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| CN203947613U (en) * | 2014-06-30 | 2014-11-19 | 同济大学 | Aluminium alloys core buckling restrained brace containing viscous-elastic material |
| CN204626690U (en) * | 2015-05-12 | 2015-09-09 | 郑州大学 | The double steel tube anti-flex of Self-resetting supports |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109505364A (en) * | 2018-11-29 | 2019-03-22 | 青岛理工大学 | Self-resetting energy-consuming steel support with shape memory alloy damper |
| WO2020107890A1 (en) * | 2018-11-29 | 2020-06-04 | 张春巍 | Self-resetting energy-dissipating steel support having shape memory alloy damper |
| CN109505364B (en) * | 2018-11-29 | 2020-10-27 | 青岛理工大学 | Self-resetting energy-consuming steel support with shape memory alloy damper |
| US10995511B2 (en) | 2018-11-29 | 2021-05-04 | Chunwei Zhang | Self-recovering energy dissipation steel support with shape memory alloy damper |
| CN111058546B (en) * | 2020-01-02 | 2024-04-26 | 广州大学 | Buckling restrained brace with tension and compression function and design method thereof |
| CN111058546A (en) * | 2020-01-02 | 2020-04-24 | 广州大学 | Buckling restrained brace with tension and compression functions and design method thereof |
| WO2021179427A1 (en) * | 2020-03-10 | 2021-09-16 | 青岛理工大学 | Frame-type replaceable buckling-preventing and shock-absorbing energy consumption apparatus and usage method |
| CN111706141A (en) * | 2020-06-05 | 2020-09-25 | 重庆大学 | Full-assembly three-section type buckling-restrained energy-dissipation brace |
| CN111963608A (en) * | 2020-07-21 | 2020-11-20 | 西安建筑科技大学 | Self-resetting shearing type lead damper |
| CN111963608B (en) * | 2020-07-21 | 2022-03-22 | 西安建筑科技大学 | Self-resetting shearing type lead damper |
| CN114263291A (en) * | 2022-01-29 | 2022-04-01 | 哈尔滨工业大学 | Anti-buckling support system with elastic pin connecting end part being reinforced and adjustable in length and installation method |
| CN114263291B (en) * | 2022-01-29 | 2022-09-06 | 哈尔滨工业大学 | Anti-buckling support system with elastic pin connecting end part being reinforced and adjustable in length and installation method |
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| CN108060725B (en) | 2019-11-12 |
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