CN208762865U - A kind of horizontal rigidity damping shock proof support - Google Patents
A kind of horizontal rigidity damping shock proof support Download PDFInfo
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- CN208762865U CN208762865U CN201821420827.8U CN201821420827U CN208762865U CN 208762865 U CN208762865 U CN 208762865U CN 201821420827 U CN201821420827 U CN 201821420827U CN 208762865 U CN208762865 U CN 208762865U
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Abstract
A kind of horizontal rigidity damping shock proof support, including one-way movable support and several air damping spring arrangements.The upper bracket plate of one-way movable support reciprocatingly slides above lower support plate along the x axis, and the identical air damping spring arrangement of quantity is symmetrically fixed on two side bottoms of upper bracket plate along the x axis.Air damping spring arrangement with elastic stiffness and damping energy dissipation function is fixed on the movable direction two sides of one-way movable support to setting by flexible connecting structure by the utility model, support is assigned with horizontal rigidity and elastic stiffness, to guarantee that utility model itself being capable of normal use in small earthquake centre, it can be avoided generation permanent destruction in big earthquake centre, be conducive to extend service life.Further, since the upper and lower support plate of one-way movable support is connected by air damping spring arrangement, so that lower support plate be enable to share part of horizontal to seismic force, so as to reduce lower support plate size to reduce manufacturing cost；And by the way of integrally installing, it is easily installed operation.
Description
Technical field
The utility model relates to bridge girder anti-seismic bearing technical field more particularly to a kind of horizontal rigidity damping shock proof supports.
Background technique
Bridge pad is the important Force transmission parts for contacting bridge upper and lower part structure.When earthquake occurs, bridge superstructure
Inertia force is transmitted to substructure by support.The study found that the horizontal performance of support plays main function during antidetonation.Branch
The horizontal performance of seat mainly includes horizontal rigidity, horizontal limeit deformation, equivalent viscous damping ratio and yield load etc., wherein water
Flat rigidity is to influence the key factor of the anti-seismic performance of support.
The horizontal rigidity of support refers to that the upper and lower plate face of support generates the horizontal force of required application when unit relative displacement, generation
Table the flexibility of structure.The horizontal rigidity value of support is smaller, and the seismic (seismal for being transmitted to superstructure is also smaller, but top and the bottom
Relative shift between structure can increase, and be easy to produce and fall beam destruction；Horizontal rigidity is bigger, is transmitted to the earthquake of superstructure
Load is also bigger, but relative shift can reduce.Therefore, the support for selecting proper level rigidity, make load and displacement it
Between reach appropriate balance, be one important principle of Aseismic Design.
Existing common aseismatic bearing device can be divided into two class of monolithic devices and divergence type.Monolithic devices aseismatic bearing device mainly wraps
Include lead core rubber support, high-damp rubber support, friction pendulum support；Divergence type aseismatic bearing device mainly includes support+gold
Belong to damper, support+frcition damper, support+sticky stuff damper.The horizontal rigidity of monolithic devices aseismatic bearing is mainly by it
The structure size and performance of anti-seismic material with the decision of support form factor, the horizontal rigidity of divergence type aseismatic bearing then by support and
The superpositions such as the horizontal shear deformation of damper determine.Monolithic devices aseismatic bearing and separation property aseismatic bearing respectively have advantage and disadvantage:
Monoblock type aseismatic bearing is compact-sized, and function of seismic resistance is merged with carrying transmission agency, easy for installation, but component is easily sent out in big earthquake centre
Raw permanent damage, needs integral replacing, influences service life；And divergence type aseismatic bearing antidetonation and carrying transmission be not respectively by
It is undertaken with mechanism, complex degree of structure is higher, and installation is more troublesome.
Utility model content
The utility model provides a kind of horizontal rigidity damping shock proof support, insufficient to solve the above-mentioned prior art.Passing through will
It has both the air damping spring arrangement of elastic stiffness and damping energy dissipation function and is fixed on the movable direction two of one-way movable support to setting
Side, while assigning support with horizontal rigidity and elastic stiffness, thus guarantee utility model itself small earthquake centre can normal use,
It can be avoided generation permanent destruction in big earthquake centre, to prolong the service life.Meanwhile by movable connection structure by air damping
The upper and lower support plate of spring arrangement and one-way movable support is fixed respectively, and lower support plate is made to work at the same time and bear horizontally
Brisance disperses horizontal force, so as to reduce lower support plate size to reduce manufacturing cost；And using the side integrally installed
Formula is easily installed operation.
In order to realize the purpose of this utility model, the following technology of proposed adoption:
A kind of horizontal rigidity damping shock proof support, which is characterized in that including one-way movable support and several air damping bullets
Spring device, one-way movable support include upper bracket plate and lower support plate, and upper bracket plate activity load is set in lower support plate and along X
Axis direction reciprocatingly slides above lower support plate, and air damping spring arrangement divides with upper bracket plate and lower support plate along the x axis
It is not connected and fixed, the identical air damping spring arrangement of quantity is symmetrically fixed on two side bottoms of upper bracket plate along the x axis.
Further, X-direction both ends in upper bracket plate bottom are provided with strip I, Y direction both ends are provided with strip
II, outer wall spacing matches II inner wall spacing of strip along the y axis with lower support plate top.
Further, lower support plate is provided with boss at top.
Further, air damping spring arrangement is made of several monomers, and monomer includes piston rod, air bag and cavity, air bag
Closing is set in cavity, and piston rod forward bolt piston is in contact with air bag, end and one-way movable support are connected and fixed, each cavity
It is parallel to each other and is closed in radiating cylinder body.
Further, the monomer positioned at heat dissipation cylinder body two sides is end monomer, and being located between the monomer of both ends is middle part list
Body, end monomer are contrary with the exposure of the piston rod of middle part monomer.
Further, the piston rod of end monomer is fixed at strip I, and the piston rod of middle part monomer is fixed at boss, is made
Outstanding set of heat dissipation cylinder body is fixed on upper bracket plate bottom.
Further, piston-rod end is flexibly connected fixation with strip I and boss by the link bolt of dribbling hinge head.
Further, under normal rest state, heat dissipation cylinder body is parallel with upper bracket plate surface and lower support plate bottom surface.
The beneficial effects of the utility model are:
1, the utility model includes one-way movable support and several air damping spring arrangements, the upper branch of one-way movable support
Seat board activity load is set in lower support plate and reciprocatingly slides above lower support plate along the x axis, air damping spring arrangement edge
X-direction and upper bracket plate and lower support plate are separately connected fixation, and the identical air damping spring arrangement of quantity is symmetrically fixed on
Two side bottoms of upper bracket plate along the x axis.By the way that horizontal rigidity, elastic stiffness and the air damping of energy-dissipating and shock-absorbing will be had both
Spring arrangement is fixed on the movable direction two sides of one-way movable support to setting, when support generates horizontal direction displacement, the resistance of two sides air
The groups of springs that Buddhist nun's spring arrangement is formed occurs corresponding stretching or compressive deformation and deviates its equilbrium position, and then generates horizontal reverse
Power makes support have the trend toward equilbrium position movement, to assign support simultaneously with horizontal rigidity and elastic stiffness, to guarantee
Utility model itself small earthquake centre can normal use, can be avoided generation permanent destruction in big earthquake centre, be conducive to extend use
Service life.
2, the utility model air damping spring arrangement is made of several monomers, and monomer includes piston rod, air bag and cavity.
Balloon occlusion is set in cavity, and piston rod forward bolt piston is in contact with air bag, end and one-way movable support are connected and fixed, respectively
Cavity, which is parallel to each other, to be closed in radiating cylinder body.On the one hand, by adjusting gas pressure in air bag, it can be obtained different-stiffness.
On the other hand, when horizontal displacement occurs for support, gas is pressurized and heat production in air bag, and simultaneous radiates cylinder body to heating gas
The process of the heat dissipation of body makes the utility model have damping energy dissipation damping performance, and support horizontal displacement speed is faster, then consumes energy
Also more.
3, the utility model air damping spring arrangement both ends piston rod is lived by the link bolt of dribbling hinge head with unidirectional
The upper and lower support plate flexible connection of dynamic support, thus the universal rotating function with certain angle, can adaptive support turn
Angle and rigging error bring position are nonstandard, in order to install；Meanwhile the vertical corner of earthquake centre support generation can also be matched,
The adverse effect that air damping spring arrangement is generated to avoid vertical displacement.
4, the upper and lower support plate of one-way movable support is attached by the utility model by air damping spring arrangement,
Stress of the upper bracket plate in earthquake is transferred to lower support plate by the horizontal rigidity formed by air damping spring arrangement, to make
Lower support plate disperses part of horizontal to seismic force.Be conducive to be promoted the antidetonation efficiency of one-way movable support.And pass through air damping
Spring arrangement is displaced upper bracket plate and limits, and one-way movable support lower support plate can be used compared with the smaller ruler of existing support plate
It is very little, advantageously reduce manufacturing cost.
5, the utility model by air damping spring arrangement and one-way movable support be attached it is fixed formed it is integrated
Apparatus structure, has that simple installation, expense is low, earthquake-resistant structure Overlay is excellent etc. compared with existing divergence type aseismatic bearing device
Outstanding feature.
Detailed description of the invention
It, below will be to the utility model in specific embodiment in order to illustrate more clearly of the technical solution of the utility model
Attached drawing needed in description is briefly described.It should be evident that the accompanying drawings in the following description is only that this is practical new
A part in all embodiments of type, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 shows the utility model schematic perspective view.
Fig. 2 shows the utility model X-direction schematic cross-sectional views.
Fig. 3 shows the utility model Y direction schematic cross-sectional view.
Fig. 4 shows the perspective structure perspective diagram of the utility model air damping spring arrangement.
Fig. 5 shows the perspective structure perspective diagram of the utility model in embodiment.
Description of symbols: 10, one-way movable support, 20, air damping spring arrangement, 200, monomer, 201, end list
Body, 202, middle part monomer, 1, upper bracket plate, 11, strip I, 12, strip II, 2, lower support plate, 21, boss, 3, piston rod, 4,
Air bag, 5, cavity, 6, heat dissipation cylinder body, A, left side groups of springs, B, right side groups of springs.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.Obviously, described embodiment is not the embodiment of the utility model whole.Based on the utility model
In embodiment, persons skilled in the art all other implementation obtained without creative efforts
Example, fall within the protection scope of the utility model.
As shown in Figure 1, the utility model provides a kind of horizontal rigidity damping shock proof support, including one-way movable support 10
With several air damping spring arrangements 20.One-way movable support 10 includes upper bracket plate 1 and lower support plate 2.Upper bracket plate 1 is fixed
In bridge superstructure spar-box bottom, lower support plate 2 is fixed at the top of bridge substructure pier pinner.
As shown in figure 3,1 bottom Y direction both ends of upper bracket plate are provided with strip II 12, II 12 inner wall spacing of strip with
Outer wall spacing matches along the y axis at lower support plate 2 top.1 activity load of upper bracket plate is set in lower support plate 2 and passes through card
Position-limiting action between item II 12 and lower support plate 2 only reciprocatingly slides above lower support plate 2 along the x axis, to make on bridge
A degree of opposite sliding can be carried out between portion's structure and substructure along the x axis.
As shown in Figure 2 and Figure 4, air damping spring arrangement 20 is distinguished with upper bracket plate 1 and lower support plate 2 along the x axis
It is connected and fixed.20 inventor of air damping spring arrangement has carried out Chinese utility model patent application, and number of patent application is
CN2018211260364.Air damping spring arrangement 20 is made of several monomers 200, and monomer 200 includes piston rod 3, air bag 4
With cavity 5, each cavity 5, which is parallel to each other, to be closed in heat dissipation cylinder body 6.Air bag 4 closing be set in cavity 5, one end of air bag 4 with
The fitting of 5 end wall of cavity, the other end are bonded with 3 forward bolt piston of piston rod.Be filled in air bag 4 gas of certain volume with
Specified pressure makes monomer 200 have certain elastic stiffness.By changing precharge of gas volume, that is, adjustable single 200 pressure
Power, to easily change its elastic stiffness under the premise of not changing 20 structure of air damping spring arrangement, volume.Air resistance
Several monomers 200 are combined by Buddhist nun's spring arrangement 20 by the cylinder body 6 that radiates, to be superimposed elastic stiffness caused by air bag 4.It is logical
The 4 precharge of gas volume of quantity and air bag for changing the unilateral fixed air damping spring arrangement 20 of one-way movable support 10 is crossed,
Different demands are adapted to provide suitable elastic stiffness, there is the utility model and be more widely applied range.3 end of piston rod
End is connected and fixed with one-way movable support 10.In seismic process, the quick horizontal displacement that one-way movable support 10 is formed is converted into
Crushing failure at high speed of 3 forward bolt piston of piston rod to air bag 4.Gas increases its temperature due to Fast Compression in air bag 4, then by dissipating
Hot cylinder body 6 scatters and disappears the partial heat into environment, to realize the consumption of shock energy over the ground.Damping energy dissipation process consumption
Energy increases with the raising of horizontal displacement speed.
As shown in Fig. 2, 1 bottom X-direction both ends of upper bracket plate are provided with strip I 11, lower support plate 2 is at top
It is provided with boss 21.3 end of piston rod is flexibly connected fixation with strip I 11 and boss 21 by the link bolt of dribbling hinge head.
This flexible connection mode of link bolt for hinge head of dribbling, has piston rod 3 with upper bracket plate 1 and 2 junction of lower support plate
The universal rotating function of certain angle, not only can adaptive support corner and rigging error bring position it is nonstandard so as to
In installation, and the vertical corner that upper bracket plate 1 is generated relative to lower support plate 2 can be matched in seismic process, avoid adopting
To the adverse effect of air damping spring arrangement 20 caused by vertical displacement between support when rigid connection structure.
Under normal rest state, heat dissipation cylinder body 6 is parallel with 1 surface of upper bracket plate and 2 bottom surface of lower support plate.To guarantee this
Utility model is in the case where small shake or wind load etc. only have slight vertical displacement operating condition, the normal work of air damping spring arrangement 20
Make, makes the utility model that there is preset horizontal rigidity and elastic stiffness.
As shown in figure 4, the monomer for being located at heat dissipation 6 two sides of cylinder body is end monomer 201, it is located between both ends monomer 201
It is middle part monomer 202, end monomer 201 is contrary with the exposure of piston rod 3 of middle part monomer 202.End monomer 201
Piston rod 3 is fixed at strip I 11, and the piston rod 3 of middle part monomer 202 is fixed at boss 21, makes heat dissipation cylinder body 6 is outstanding to set fixation
In 1 bottom of upper bracket plate.By end monomer 201 and middle part monomer 202 to the relationship that sets, Overlay is formed, sky is enhanced
The elastic stiffness of gas damping spring device 20.
As shown in figure 5, quantity identical air damping spring arrangement 20 is symmetrically fixed on upper bracket plate 1 along the x axis
Two side bottoms.In seismic process, when upper bracket plate 1 is slided along the x axis with respect to lower support plate 2, the air damping of arranged on left and right sides
Left and right portion's groups of springs that spring arrangement 20 constructs respectively occurs stretching or compressive deformation and deviates from spring balancing position, thus
Generating makes upper bracket plate 1 and lower support plate 2 have the horizontal reacting force of reset trend, that is, has constituted the level of the utility model just
Degree.
It is further elaborated by structure and embodiment of the embodiment to the utility model, is used to help understand this reality
With novel core concept.In specific embodiment and model is applied according to above-mentioned thought for those of ordinary skill in the art
Place that there will be changes, thus, the content of the present specification should not be construed as a limitation of the present invention.
Embodiment 1:
In the present embodiment, one-way movable support uses one-way movable spherical bearing, on it between support plate and lower support plate
From top to bottom also it is successively arranged mirror face stainless steel plate, planar lasting board, ball-type plate and spherical surface wearing plate.Air damping spring arrangement
With 2 groups of end monomers, piston rod is flexibly connected fixation, air damping bullet with upper bracket plate strip I by upper link bolt
Spring device also has 2 groups of middle part monomers, and piston rod is flexibly connected fixation with lower support plate boss by lower link bolt.Upper hinge
Connecting bolt and lower link bolt are the bolt of dribbling hinge head.
The upper bracket plate two sides of the bottom of (horizontal direction) are respectively fixed with two groups of air damping spring arrangements along the x axis,
Left side groups of springs A and right side groups of springs B is labeled as in conjunction with Fig. 5.
Fricton-tight between upper bracket plate and lower support plate under nominal situation, each air bag in each air damping spring arrangement is equal
In non-compressed state, left side groups of springs A and right side groups of springs B is made to be located at equilbrium position.
Under earthquake operating condition, one-way movable support structure relative position acute variation, upper bracket plate exists relative to lower support plate
Fast offset occurs for vertical and horizontal direction.By the universal rotating function of upper link bolt and lower link bolt, pulls and live
Stopper rod is mobile towards cylinder body both ends, makes that certain angle is presented between cylinder body and upper and lower support plate, to match above-mentioned vertical displacement.
When the opposite lower support plate of upper bracket plate is along the x axis towards right side sliding moment (in conjunction with Figure of description 5), left side
Each piston rod compresses air bag in groups of springs A, and each piston rod front end is mobile towards cylinder body end wall in the groups of springs B of right side
And far from air bag.When the air bag compression of left side groups of springs A reaches capacity, right side groups of springs B piston rod forward bolt piston is close to cylinder body
When end wall, the horizontal reacting force formed reaches maximum, and upper bracket plate is promoted to stop dextrad sliding.If upper bracket plate dextrad is slided
To stop, then under the elastic stiffness effect of left side groups of springs A compressing gasbag, upper bracket plate will be slided towards left side at once
It is dynamic, and finally realize and reset under the effect of right side groups of springs B air bag elastic stiffness.Upper bracket plate is with respect to lower support plate along X-axis side
To similar to foregoing reset process towards left slide process.
Claims (8)
1. a kind of horizontal rigidity damping shock proof support, which is characterized in that including one-way movable support (10) and several air dampings
Spring arrangement (20), one-way movable support (10) include upper bracket plate (1) and lower support plate (2), and upper bracket plate (1) activity load is set
It reciprocatingly slides on lower support plate (2) and along the x axis above lower support plate (2), air damping spring arrangement (20) is along X
Axis direction and upper bracket plate (1) and lower support plate (2) are separately connected fixation, and the identical air damping spring arrangement (20) of quantity is right
Title is fixed on two side bottoms of upper bracket plate (1) along the x axis.
2. aseismatic bearing according to claim 1, which is characterized in that the setting of upper bracket plate (1) bottom X-direction both ends
There are strip I (11), Y direction both ends to be provided with strip II (12), strip II (12) inner wall spacing and lower support plate (2) top
Outer wall spacing matches along the y axis.
3. aseismatic bearing according to claim 2, which is characterized in that lower support plate (2) is provided with boss at top
(21).
4. aseismatic bearing according to claim 3, which is characterized in that air damping spring arrangement (20) is by several monomers
(200) it constituting, monomer (200) includes piston rod (3), air bag (4) and cavity (5), and air bag (4) closing is set in cavity (5),
Piston rod (3) forward bolt piston is in contact with air bag (4), end and one-way movable support (10) are connected and fixed, and each cavity (5) is mutual
Parallel seal is in heat dissipation cylinder body (6).
5. aseismatic bearing according to claim 4, which is characterized in that the monomer for being located at heat dissipation cylinder body (6) two sides is end
Monomer (201), being located between both ends monomer (201) is middle part monomer (202), end monomer (201) and middle part monomer
(202) exposure of piston rod (3) is contrary.
6. aseismatic bearing according to claim 5, which is characterized in that the piston rod (3) of end monomer (201) is fixed on card
At item I (11), the piston rod (3) of middle part monomer (202) is fixed at boss (21), is fixed on outstanding set of heat dissipation cylinder body (6)
Support plate (1) bottom.
7. aseismatic bearing according to claim 6, which is characterized in that piston rod (3) end is hinged by dribbling hinge head
Bolt is flexibly connected fixation with strip I (11) and boss (21).
8. aseismatic bearing according to claim 7, which is characterized in that under normal rest state, heat dissipation cylinder body (6) and upper branch
Seat board (1) surface is parallel with lower support plate (2) bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821420827.8U CN208762865U (en) | 2018-08-31 | 2018-08-31 | A kind of horizontal rigidity damping shock proof support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821420827.8U CN208762865U (en) | 2018-08-31 | 2018-08-31 | A kind of horizontal rigidity damping shock proof support |
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| Publication Number | Publication Date |
|---|---|
| CN208762865U true CN208762865U (en) | 2019-04-19 |
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ID=66134833
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821420827.8U Active CN208762865U (en) | 2018-08-31 | 2018-08-31 | A kind of horizontal rigidity damping shock proof support |
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| Country | Link |
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| CN (1) | CN208762865U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176855A (en) * | 2020-10-07 | 2021-01-05 | 大连理工大学 | Horizontal omnidirectional displacement amplification type friction damper based on slidable separation double-spherical hinge |
| CN112252504A (en) * | 2020-09-04 | 2021-01-22 | 同济大学 | Compound friction pendulum isolation bearing based on cylinder principle |
-
2018
- 2018-08-31 CN CN201821420827.8U patent/CN208762865U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112252504A (en) * | 2020-09-04 | 2021-01-22 | 同济大学 | Compound friction pendulum isolation bearing based on cylinder principle |
| CN112252504B (en) * | 2020-09-04 | 2022-03-25 | 同济大学 | Compound friction pendulum isolation bearing based on cylinder principle |
| CN112176855A (en) * | 2020-10-07 | 2021-01-05 | 大连理工大学 | Horizontal omnidirectional displacement amplification type friction damper based on slidable separation double-spherical hinge |
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