CN104032670B - A kind of large corner high friction antivibration support - Google Patents
A kind of large corner high friction antivibration support Download PDFInfo
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- CN104032670B CN104032670B CN201410255971.0A CN201410255971A CN104032670B CN 104032670 B CN104032670 B CN 104032670B CN 201410255971 A CN201410255971 A CN 201410255971A CN 104032670 B CN104032670 B CN 104032670B
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- base plate
- block
- seat board
- upper base
- laminated rubber
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Abstract
A kind of large corner high friction antivibration support, comprises two groups, left and right laminated rubber block, base plate, lower seat board, middle seat board, upper base plate, low-friction coefficient friction pair, great friction coefficient friction pair, shear pin, block, vertical follower.Occurred level displacement between upper base plate and base plate, laminated rubber block generation shear strain provides restoring force; Block, shear pin are all for bearing horizontal force, and the former its design bearing capacity is larger, all can not destroy under what geological process in office; The latter's design bearing capacity is smaller, should be cut off under large shake effect.Low-friction coefficient friction pair is for adapting to the requirement of corner; Great friction coefficient friction pair is used for dissipating in earthquake tectonic comparison.The invention provides and normal use lower vertical bearing capacity, horizontal bearing capacity, the deformation requirements of Loads of Long-span Bridges, the larger corner of large span spatial structure can be adapted to, effectively reduce the seismic response of bridge construction under geological process, guarantee bridge earthquake resistance safety.
Description
Technical field
The invention belongs to structural seismic security fields, relate to a kind of bridge, space structures of preventing and the bearing destroyed occurs under geological process.
Background technology
Destroy under geological process to prevent bridge, space structures, often seismic isolation device (or vibration absorption and isolation support) is set in the position of bearing, reduce superstructure horizontal inertial force by the prolongation cycle of vibration absorption and isolation support, reduced the dynamic respond of earthquake by the power consumption of vibration absorption and isolation support.Thus its underpart structure does not often need to carry out special design, and cost is relatively low.While providing and necessarily subtracting shock insulation ability, vibration absorption and isolation support also demand fulfillment structure requirement used in everyday.
Often there is the shortcomings such as corner deformability is little, price is higher, unstable properties, installation is inconvenient, maintenance is difficult in the vibration absorption and isolation support used in current engineering.
Summary of the invention
The object of the present invention is to provide a kind of large corner high friction antivibration support, meet the normal instructions for use under non-earthquake conditions, damping power consumption requirement under geological process, to solve existing product Problems existing.The present invention has that corner deformability is large, cheap, great friction coefficient, height of support are little, horizontal movement is large, horizontal rigidity is easy to accurately control and excursion very greatly, does not raise the advantage of phenomenon, can overcome the weak point of existing vibration absorption and isolation support completely.
For reaching above object, solution of the present invention is:
A kind of large corner high friction antivibration support, comprises two groups, left and right laminated rubber block 1, base plate 2, lower seat board 3, middle seat board 4, upper base plate 5, low-friction coefficient friction pair 6, great friction coefficient friction pair 7, shear pin 8, block 9, vertical follower 10.
Upper base plate 5, middle seat board 4, lower seat board 3 constitute spherical bearing.Spherical bearing is between the laminated rubber block 1 of two groups, left and right.
Base plate 2 is connected with the substructure of bridge, and upper base plate 5 is connected with the superstructure of bridge.
The lower planes of two groups of laminated rubber blocks 1 is connected with upper base plate 5, base plate 2 respectively, and occurred level displacement between upper base plate 5 and base plate 2, laminated rubber block 1 shear strain will occur, and provide restoring force.Block rubber in laminated rubber block 1 is made up, containing horizontal steel plate constraint rubber external drum in block rubber of the elastomeric material that corrosion resistance, lower temperature resistance, durability are good.
Block 9 is the convex bodys formed bottom upper base plate 5, is positioned at the periphery of described spherical bearing; Block 9 is for bearing horizontal force, and its design bearing capacity is larger, all can not destroy under what geological process in office.Shear pin 8 is also for bearing horizontal force, and its design bearing capacity is smaller, and great friction coefficient friction pair 7 is fixed on base plate 2 by shear pin 8, and under large shake effect, shear pin 8 should be cut off.
Low-friction coefficient friction pair 6 between upper base plate 5 and middle seat board 4, and the low-friction coefficient friction pair 6 between middle seat board 4 and lower seat board 3 is mainly used in the requirement adapting to corner.And the great friction coefficient friction pair 7 between base plate 2 and lower seat board 3 is mainly used in dissipating in earthquake tectonic comparison.It should be noted that, friction pair belongs to conventional products in the art, does not need to introduce its CONSTRUCTED SPECIFICATION.
Vertical follower 10 to be arranged between upper base plate 5 and laminated rubber block 1 in space, that the line slideway vertically arranged by some covers is formed, often overlap line slideway and comprise guide rail pole 11 and slide block 12, the fixed end of guide rail pole 11 is connected to upper base plate 5, slide block 12 is fixed with the horizontal steel plate of upper end in laminated rubber block 1, can slide up and down along guide rail pole 11.Vertical follower 10 can ensure that the horizontal relative position between laminated rubber block 1 end face and upper base plate 5 remains constant, and the vertical relative displacement that can be able to adapt to again when larger corner occurs bearing between upper base plate 5, base plate 2, meet the requirement of the larger corner deformability of bearing.
Upper base plate 5, middle seat board 4, lower seat board 3 constitute a conventional ball type bearing, can transmit vertical force, horizontal force, and adapt to the requirement of corner.The middle seat board 4 of this bearing is the middle support plate of spherical bearing, and it also comprises rotation spherical, slip plane, and rotation spherical is connected and fixed on the spherical structure on middle seat board 4 top, and slip plane is connected and fixed in the plane structure of middle seat board 4 bottom.Described conventional ball type bearing, its structure, function, working method have belonged to ripe prior art, and be applicable to as bridge pad all types that " spherical bearing technical condition " GB/T17955-2009 comprises, its technical requirements meets the requirement of these specifications.
Owing to have employed such scheme, the present invention has following characteristics:
1, corner deformability is larger: the conventional ball type bearing be made up of upper base plate, middle seat board, lower seat board, can adapt to the larger requirement of bearing corner deformability neatly by spherical rotation.Vertical follower 10 can discharge the constraint of laminated rubber block to vertical displacement between upper base plate and base plate, adapts to the requirement that bearing corner deformability is larger.Corner deformability can reach 0.2rad.
2, in-site installation is simple, convenient, quality is guaranteed: the friction pair of laminated rubber block, great friction coefficient becomes as a whole with spherical bearing, and field installation process is identical with general bearing, can ensure the quality of products.
3, damping energy dissipation capacity: the effect being played dissipation seismic energy by the friction pair of great friction coefficient.
4, extend the cycle: provide level to restoring force by laminated rubber block, make the lateral-supporting rigidity of bridge pier and bearing train be less than the lateral-supporting rigidity of bridge pier, thus play the prolongation cycle, reduce the effect of seismic response.
5, there is designability: by parameters such as the friction factor of the friction pair of the height of adjustment laminated rubber block, sectional dimension and shape, modulus of elasticity and great friction coefficient, controlled design can be carried out to corner ability, energy dissipation capacity, slip rigidity and maximum displacement etc.
The present invention's large corner high friction antivibration support, vertical bearing capacity, horizontal bearing capacity under normal use can be provided, the deformation requirements of Loads of Long-span Bridges, the larger corner of large span spatial structure can be adapted to especially, effectively can reduce the seismic response of bridge construction under geological process simultaneously, ensure bridge earthquake resistance safety.
Accompanying drawing explanation
Fig. 1 is the direction across bridge structural representation of the present invention's large corner high friction antivibration support.
Fig. 2 is that the vertical bridge of the present invention's large corner high friction antivibration support is to structural representation.
Fig. 3 is the sectional view of bowing of the present invention's large corner high friction antivibration support.
Fig. 4 is the structural representation of vertical follower, namely the partial enlarged drawing at A place in Fig. 1.
Description of symbols: laminated rubber block 1, base plate 2, lower seat board 3, middle seat board 4, upper base plate 5, low-friction coefficient friction pair 6, great friction coefficient friction pair 7, shear pin 8, block 9, vertical follower 10, guide rail pole 11, slide block 12.
Detailed description of the invention
Below in conjunction with accompanying drawing illustrated embodiment, the present invention is further illustrated.
Embodiment large corner high friction antivibration support, its design parameters sees the following form.
The design parameters of the large corner high friction antivibration support of table 1
| Susceptor design parameter | Large corner high friction antivibration support |
| Vertical bearing capacity N | 4000kN |
| Transverse horizontal bearing capacity under little shake effect F 1 | 400kN |
| Corner θ | 0.06rad |
| Low-friction coefficient during normal use μ 1 | 0.02 |
| Displacement request during normal use D 1 | +/-0.1m |
| Great friction coefficient under large shake effect μ 2 | 0.08 |
| Level is to subtracting shock insulation horizontal rigidity K 2 | 1000kN/m |
| Level is to subtracting shock insulation displacement capacity D 2 | 0.2m |
| Level is to Limiting Level bearing capacity F 2 | 1000kN |
As Figure 1-Figure 4, large corner high friction antivibration support comprises two groups, left and right laminated rubber block 1, base plate 2, lower seat board 3, middle seat board 4, upper base plate 5, low-friction coefficient friction pair 6, great friction coefficient friction pair 7, shear pin 8, block 9, vertical follower 10.
Upper base plate 5, middle seat board 4, lower seat board 3 constitute spherical bearing.Spherical bearing is between the laminated rubber block 1 of two groups, left and right.
Base plate 2 is connected with the substructure of bridge, and upper base plate 5 is connected with the superstructure of bridge.
Two groups of laminated rubber blocks 1 are placed in the both sides of described spherical bearing respectively, the lower planes of two groups of laminated rubber blocks 1 is connected with upper base plate 5, base plate 2 respectively, occurred level displacement between upper base plate 5 and base plate 2, will there is shear strain in laminated rubber block 1, provide restoring force.Block rubber in laminated rubber block 1 is made up, containing horizontal steel plate constraint rubber external drum in block rubber of the elastomeric material that corrosion resistance, lower temperature resistance, durability are good.
Block 9 is the convex bodys formed bottom upper base plate 5, is positioned at the periphery of described spherical bearing; Block 9 is for bearing horizontal force, and its design bearing capacity is larger, all can not destroy under what geological process in office.Shear pin 8 is also for bearing horizontal force, and its design bearing capacity is smaller, and great friction coefficient friction pair 7 is fixed on base plate 2 by shear pin 8, and under large shake effect, shear pin 8 should be cut off.
Low-friction coefficient friction pair 6 between upper base plate 5 and middle seat board 4, and the low-friction coefficient friction pair 6 between middle seat board 4 and lower seat board 3 is mainly used in the requirement adapting to corner.And the great friction coefficient friction pair 7 between base plate 2 and lower seat board 3 is mainly used in dissipating in earthquake tectonic comparison.It should be noted that, friction pair belongs to conventional products in the art, does not need to introduce its CONSTRUCTED SPECIFICATION.
Vertical follower 10 to be arranged between upper base plate 5 and laminated rubber block 1 in space, that the line slideway vertically arranged by some covers is formed, often overlap line slideway and comprise guide rail pole 11 and slide block 12, the fixed end of guide rail pole 11 is connected to upper base plate 5, slide block 12 is fixed with the horizontal steel plate of upper end in laminated rubber block 1, can slide up and down along guide rail pole 11.Vertical follower 10 can ensure that the horizontal relative position between laminated rubber block 1 end face and upper base plate 5 remains constant, and the vertical relative displacement that can be able to adapt to again when larger corner occurs bearing between upper base plate 5, base plate 2, meet the requirement of the larger corner deformability of bearing.
One as the embodiment of the present invention converts, and the common bearing of cooperation, except spherical bearing, can also adopt the bearing of other types and index.
As another conversion of the embodiment of the present invention, quantity, the parameter of described laminated rubber block can increase or reduce, and its distribution form can planar be arranged arbitrarily.
As another conversion of the embodiment of the present invention, the scope of described low friction pair friction factor can between 0.001 ~ 0.03, and the scope of high friction pair friction factor can between 0.05 ~ 0.30.
Claims (1)
1. a large corner high friction antivibration support, comprises two groups, left and right laminated rubber block (1), base plate (2), lower seat board (3), middle seat board (4), upper base plate (5), low-friction coefficient friction pair (6), great friction coefficient friction pair (7), shear pin (8), block (9);
Upper base plate (5), middle seat board (4), lower seat board (3) constitute spherical bearing; Spherical bearing is positioned between the two groups of laminated rubber blocks (1) in left and right;
Base plate (2) is connected with the substructure of bridge, and upper base plate (5) is connected with the superstructure of bridge;
The lower planes of two groups of laminated rubber blocks (1) is connected with upper base plate (5), base plate (2) respectively, occurred level displacement between upper base plate (5) and base plate (2), to there is shear strain in laminated rubber block (1), provide restoring force; Containing some horizontal steel plate in block rubber in laminated rubber block (1);
Block (9) is the convex body formed in upper base plate (5) bottom, is positioned at the periphery of described spherical bearing; Block (9) is for bearing horizontal force;
Great friction coefficient friction pair (7) is also fixed on base plate (2) for bearing horizontal force shear pin (8) by shear pin (8);
Low-friction coefficient friction pair (6) between upper base plate (5) and middle seat board (4), and the low-friction coefficient friction pair (6) between middle seat board (4) and lower seat board (3) is for adapting to the requirement of corner; And the great friction coefficient friction pair (7) between base plate (2) and lower seat board (3) is for the tectonic comparison that dissipates in earthquake;
It is characterized in that, also comprise vertical follower (10), vertical follower (10) to be arranged between upper base plate (5) and laminated rubber block (1) in space, that the line slideway vertically arranged by some covers is formed, often overlap line slideway and comprise guide rail pole (11) and slide block (12), the fixed end of guide rail pole (11) is connected to upper base plate (5), slide block (12) is fixed with the horizontal steel plate of upper end in laminated rubber block (1), can slide up and down along guide rail pole (11);
Block (9) design bearing capacity is larger, all can not destroy under what geological process in office;
Shear pin (8) design bearing capacity is smaller, and under large shake effect, shear pin (8) should be cut off.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410255971.0A CN104032670B (en) | 2014-06-11 | 2014-06-11 | A kind of large corner high friction antivibration support |
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| CN201410255971.0A CN104032670B (en) | 2014-06-11 | 2014-06-11 | A kind of large corner high friction antivibration support |
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| CN104032670A CN104032670A (en) | 2014-09-10 |
| CN104032670B true CN104032670B (en) | 2015-11-25 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831621B (en) * | 2015-05-13 | 2017-02-22 | 北京工业大学 | Guide rail type anti-drawing high-damping rubber shock insulation support |
| CN107012786B (en) * | 2016-01-27 | 2019-05-24 | 株洲时代新材料科技股份有限公司 | A kind of damping friction support |
| CN105862578A (en) * | 2016-06-07 | 2016-08-17 | 吴国庆 | Self-reset slippage and shock isolation support |
| CN107217587A (en) * | 2017-06-08 | 2017-09-29 | 成都市大通路桥机械有限公司 | A kind of split type Isolated Bridges bearing |
| CN112064495A (en) * | 2020-09-23 | 2020-12-11 | 刘洪江 | Damping support |
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| CN1570280A (en) * | 2004-04-29 | 2005-01-26 | 同济大学 | Ball-type lead core damped steel support stand |
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| CN201485785U (en) * | 2009-08-12 | 2010-05-26 | 衡水丰泽工程橡胶科技开发有限公司 | Spherical steel bearing of elastic-plastic anti-falling beam |
| CN201610518U (en) * | 2010-02-03 | 2010-10-20 | 上海英谷桥梁科技有限公司 | Friction type high-damping rubber bridge damping support |
| CN202298452U (en) * | 2011-10-31 | 2012-07-04 | 张力 | Vibration reducing, noise reducing and earthquake resisting spherical steel support |
| CN102839603A (en) * | 2012-09-26 | 2012-12-26 | 彭天波 | High-friction antivibration support and preparation method thereof |
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- 2014-06-11 CN CN201410255971.0A patent/CN104032670B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| CN1570280A (en) * | 2004-04-29 | 2005-01-26 | 同济大学 | Ball-type lead core damped steel support stand |
| JP2008133644A (en) * | 2006-11-28 | 2008-06-12 | Kawaguchi Metal Industries Co Ltd | Fixed bearing structure for bridge |
| CN201172901Y (en) * | 2008-03-20 | 2008-12-31 | 同济大学 | High-damping rubber sphere combined support |
| CN201485785U (en) * | 2009-08-12 | 2010-05-26 | 衡水丰泽工程橡胶科技开发有限公司 | Spherical steel bearing of elastic-plastic anti-falling beam |
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