CN207760718U - A kind of bridge damping bearing - Google Patents
A kind of bridge damping bearing Download PDFInfo
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- CN207760718U CN207760718U CN201721790460.4U CN201721790460U CN207760718U CN 207760718 U CN207760718 U CN 207760718U CN 201721790460 U CN201721790460 U CN 201721790460U CN 207760718 U CN207760718 U CN 207760718U
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- damping element
- section steel
- seat board
- base plate
- lower seat
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Abstract
The utility model discloses a kind of bridge damping bearings, the stick that casts anchor including upper base plate, lower seat board, spherical crown liner plate, Variable Section Steel damping element, the upper anchor stick for connecting upper base plate, the lower seat board of connection, spherical crown liner plate is connected between upper base plate and lower seat board, and the Variable Section Steel damping element is connected to both sides or the surrounding of upper base plate and lower seat board；The upper end connection upper base plate of Variable Section Steel damping element, the lower seat board of lower end connection.The Variable Section Steel damping element is that horizontal U-shaped is blocky, is formed by cuboid steel plate processing and fabricating；When Variable Section Steel damping element is connected on upper base plate and lower seat board, open end is inside, blind end exposes except upper base plate and lower seat board.The function of bearing normal use situation had not only may be implemented in the utility model, but also can guarantee under big shake effect, is consumed energy by the limiting displacement of bearing and damping, prevents bridge from falling beam and have the function of vertical drawing.
Description
Technical field
The utility model is related to bridge earthquake resistance technical fields.
Background technology
With the development of economy, country also increases the construction dynamics of infrastructure, and science of bridge building has obtained high speed development,
China is just strided forward from bridge big country to bridge power.How bridge takes precautions against bridge earthquake centre peace as the multi-purpose project in traffic lines
Have become the matter of great urgency entirely.In order to solve the disaster problem in bridge earthquake, bridge superstructure and substructure it
Between setting vibration absorption and isolation support be most simple, economical and effective mode.When normal work or frequently occurred earthquake occur, bridge pad
The requirement of superstructure can be met by the frictional force of itself, but under the extreme conditions such as strong wind, big shake, bridge pad is held
The horizontal loading received is larger, will produce excessive horizontal displacement, superstructure is caused to destroy, bridge superstructure is made to be also easy to produce
Fall beam harm.
Application No. is the patents of CN200820066839.5 to disclose a kind of E profiled bar damp supports, including upper anchor plate, bottom
Basin, intermediate liner plate, the upper surface of intermediate liner plate are contacted with upper anchor plate lower face, and the lower end of intermediate liner plate is located at bottom basin inner cavity
It is interior, mutually matched sliding block and guide rail are equipped between intermediate liner plate upper end and upper anchor plate lower face, in upper anchor plate in
Between E shaped steel damping elements are housed between liner plate, E shaped steel damping elements are steel E shape molding elements, in the E types damping element three
The end of foot is equipped with connecting hole, arbitrary two feet or the connecting hole on a foot and upper anchor plate pin in E type damping elements
Axis is hinged, and the connecting hole on remaining foot of E shaped steel damping element and otic placode in intermediate liner plate are hinged with axis pin.The above-mentioned patent seat of honour
Plate, lower base plate structure form can only meet bearing commonly by force effect；Above-mentioned patent E shaped steel damping elements erection support periphery its
Space occupancy rate is larger, and the consumption of E shaped steel damping element rapidoprints is larger, and the corner part of E shaped steel damping elements is easy to draw
Play stress concentration；Above-mentioned patent E shaped steel damping element has played a role in design geological process, may be easy to damage under big shake effect
It is bad.Application No. is CN201220418050.8）Patent disclose a kind of ε shaped steel damping dissipation energy ball-type Steel Bridge damping supporting seat,
ε shaped steel damping elements including ball-type Steel Bridge damping supporting seat ontology and for damping dissipation energy.ε shaped steel damping elements include side by side
Be arranged and two segmental arcs that opening direction is consistent, one end of two segmental arcs intersect be an integral structure, the other end and intersection end
Three feet of ε shaped steel damping elements are formed, mounting hole is equipped on three feet.Support body includes upper anchoring piece, upper base plate, work
Plug, spherical crown liner plate, bottom basin, lower seat board and lower anchoring piece.Support body is equipped with sliding surface and guide rail, guide-track groove in damping direction,
Bearing can be slided along guide-track groove.Above-mentioned patent ε shaped steel damping element installation dimensions and space occupancy are larger, rapidoprint
Consumption is also big；Above-mentioned patent upper base plate, lower base plate structure form can only equally meet bearing commonly by force effect；Above-mentioned patent ε
Shaped steel damping element has played a role in design geological process, may be easily damaged under big shake effect.
Utility model content
Technical problem to be solved in the utility model is：A kind of bridge damping bearing is provided, can not only be born general
Lead to by force effect, and under big shake effect, bridge over-large displacement amount can also be limited, damping energy consumption, prevent bridge from falling beam.
The technical solution of the utility model is：A kind of bridge damping bearing, including upper base plate, lower seat board, spherical crown liner plate, change
The stick that casts anchor of section steel damping element, the upper anchor stick for connecting upper base plate, the lower seat board of connection, spherical crown liner plate are connected to upper base plate under
Between seat board, the Variable Section Steel damping element is connected to both sides or the surrounding of upper base plate and lower seat board；Variable Section Steel damping member
The top connection upper base plate of part, the lower seat board of lower part connection.
The Variable Section Steel damping element is that horizontal U-shaped is blocky, is formed by cuboid steel plate processing and fabricating；Variable Section Steel hinders
When Buddhist nun's element is connected on upper base plate and lower seat board, open end is inside, blind end exposes except upper base plate and lower seat board.
It is equipped with plane slide plate between spherical crown liner plate and upper base plate, forms slip plane friction auxiliary structure；Spherical crown liner plate is under
It is equipped with spherical slide plate between seat board, forms rotation spherical friction auxiliary structure.
The both ends of upper base plate are equipped with limited block and groove profile block for being limited to Variable Section Steel damping element, slot
Type block is equipped with groove, and the top of Variable Section Steel damping element is located in the groove of groove profile block, Variable Section Steel damping element
Upper end end face is adjacent to limited block；The bridge damping bearing further includes shearing resistance block, connection bolt two, Variable Section Steel damping member
The top of part connects upper base plate by shearing resistance block, connection bolt two.
The rectangular cross-section of limited block, groove profile block inside are pasted with anti-slip material, and anti-slip material is PTFE tread plates.
Be reserved with the bolt hole three for connecting Variable Section Steel damping element on shearing resistance block, shearing resistance block and upper base plate it
Between be pasted with rubber block.
The lower seat board is equipped with the bolt hole one for installing Variable Section Steel damping element, is additionally provided with and becomes on lower seat board
The matched concave cross section of section steel damping element thickness and width, Variable Section Steel damping element lower part are connected by connecting bolt one
Connect lower seat board.
Variable Section Steel damping element is variable cross-section shape symmetrical above and below；The upper and lower part of Variable Section Steel damping element is equal
For variable cross-section shape, and it is reserved with the bolt hole two for connecting bolt；The centre of Variable Section Steel damping element is uniformly to cut
Face shape.
Variable Section Steel damping element is arranged symmetrically in both sides or the surrounding of upper base plate and lower seat board, and number is one or two
More than a；Variable Section Steel damping element thickness is 10 ~ 200mm, and width is 100 ~ 600mm, and top variable cross-section is uniformly cut with intermediate
Face, lower part variable cross-section and the changeover portion radian of intermediate uniform cross-section are 45 DEG C ~ 60 DEG C.
The utility model has the beneficial effects that：1）The bearing of the utility model（Bridge damping bearing）Upper base plate, lower seat
Bearing normal use situation had both may be implemented using structure type that is special, mutually coordinating with Variable Section Steel damping element in plate
Function, and can guarantee under big shake effect, it is consumed energy by the limiting displacement of bearing and damping, prevents bridge from falling beam and with vertical
The effect of drawing；2）The Variable Section Steel damping element of the utility model is variable cross-section shape, upper and lower end（That is top, lower part）
Variable cross-section size is big, and intermediate cross-section is uniform, and the bonding strength problem and intermediate cross-section for preferably resolving damping element uniformly consume
The problem of energy, Variable Section Steel damping element force design is reasonable；3）The Variable Section Steel damping element of the utility model, can increase this
The horizontal rigidity and vertical rigidity of bearing had both reduced bearing horizontal loading for being subject under big shake effect, moreover it is possible to resist bearing by
The vertical force effect arrived, when damping element is by bearing different horizontal and vertical horizontal loading, two kinds of loads make damping element
The hysteresis loop different from of generation meets the bridge vertically and horizontally different actual state of geological process；The plasticity of damping element becomes
Shape ability is strong, has good anti-seismic performance and energy dissipation capacity；4）The bridge damping bearing and damping method of the utility model,
It is meet under design geological process more, it can at this time be damped by the flat frictional pair of bridge damping bearing come the seismic energy that dissipates
Element is not subject to any external force；Under big shake or rarely occurred earthquake effect, the slide displacement amount of bridge damping bearing is more than upper base plate
After the displacement of sliding slot, Variable Section Steel damping element plays energy consumption effect simultaneously with support friction pair, and is hindered by Variable Section Steel
Buddhist nun's element limits the excessive displacement of bearing, prevents bridge from falling beam and vertical motion；5）The utility model bridge damping bearing
And damping method, Variable Section Steel damping element is arranged in surrounding or the both sides of bearing, the space occupancy rate of damping element is small, peace
Dress is convenient；Variable Section Steel damping element can provide different yield forces as needed, be expired using good cross section parameter characteristic
Anti-seismic performance and the energy dissipation capacity requirement of sufficient bridge.
Description of the drawings
Fig. 1 is the utility model Bridge damping supporting seat dimensional structure diagram；
Fig. 2 is the utility model Bridge damping supporting seat normal cross-section schematic diagram；
Damping element dimensional structure diagram in Fig. 3 the utility model；
Shearing resistance block dimensional structure diagram in Fig. 4 the utility model；
Reference sign：Upper base plate 1, plane slide plate 2, spherical crown liner plate 3, spherical slide plate 4, Variable Section Steel damping element 5,
Lower seat board 6, limited block 7, groove profile block 8, shearing resistance block 9, connection bolt 2 10, rubber block 11, tread plate 12, upper anchor stick
13, cast anchor stick 14, connection bolt 1.
Specific implementation mode
It please refers to Fig.1 to Fig. 4, a kind of bridge damping bearing, including upper base plate 1, plane slide plate 2, spherical crown liner plate 3, spherical surface
Slide plate 4, Variable Section Steel damping element 5, lower seat board 6, limited block 7, groove profile block 8, shearing resistance block 9, connection bolt 2 10, rubber
Blob of viscose 11, tread plate 12, upper anchor stick 13, the stick 14 that casts anchor, connection bolt 1.
The upper anchor stick of upper base plate connection, the both ends of upper base plate are equipped with the limit for being limited to Variable Section Steel damping element
Block and groove profile block, for groove profile block adjacent to seat of honour plate end face, groove profile block is equipped with groove, Variable Section Steel damping element it is upper
Portion is located in the groove of groove profile block, and Variable Section Steel damping element upper end end face is adjacent to limited block.Lower seat board connects the stick that casts anchor,
Lower seat board is equipped with the bolt hole one for installing Variable Section Steel damping element and adapts to Variable Section Steel damping element thickness and width
The concave cross section of degree.Variable Section Steel damping element one end is connected to upper base plate by shearing resistance block, connection bolt two, and the other end is logical
It crosses connection bolt one and is connected to lower seat board；Spherical crown liner plate is connected between upper base plate and lower seat board, and by plane slide plate with it is upper
Slip plane friction pair is formed between seat board, by forming rotation spherical friction auxiliary structure between spherical slide plate and lower seat board.
Limited block is rectangular section, and thickness is determined according to the practical shear resistance of bearing, practical shear resistance
Generally the 10% ~ 40% of vertical bearing capacity.The gap size of groove profile block is made by the bearing normal use situation and design earthquake
Slide displacement amount under determines that thickness is determined by the maximum horizontal power undertaken after the big shake of the bearing, inside is viscous
Post the PTFE tread plates or other materials for reducing friction.
Bolt hole one on lower seat board connects bolt size according to Variable Section Steel damping element and is determined, concave cross section
According to the design of Variable Section Steel damping element it needs to be determined that.
Variable Section Steel damping element is variable cross-section shape symmetrical above and below, and the top and bottom of Variable Section Steel damping element are equal
For variable cross-section shape, remain for the bolt hole two for connecting bolt in advance, bolt hole two is often held near close end and sets three spiral shells
Keyhole two.The size of its bolt hole two determines that the centre of Variable Section Steel damping element is uniform cross-section shape according to design bearing capacity
Shape.
Variable Section Steel damping element is arranged symmetrically in the bearing both sides（It is also disposed at bearing surrounding）, arrangement number can
Think it is single, two or more.
The form that Variable Section Steel damping element is connected to the bearing is arc.
Variable Section Steel damping element is that horizontal U-shaped is blocky, is formed by cuboid steel plate processing and fabricating；Variable Section Steel damping member
When part is connected on upper base plate and lower seat board, open end is inside, blind end exposes except upper base plate and lower seat board.Variable cross-section
Steel damping element includes the upper, middle and lower being integrally connected, and middle part is arc, upper and lower part substantially cuboid
And its width and thickness size can be in gradual change state, its underpart length is also greater than upper length.
Variable Section Steel damping element thickness is generally 10 ~ 200mm, and the width of the upper end and lower end is generally 100 ~ 600mm,
Upper and lower end variable cross-section is secondary or higher order functionality form in the variable cross-section equation of thickness and prolonging direction, and upper and lower end, which becomes, to be cut
The changeover portion radian of face and intermediate uniform cross-section is 45 DEG C ~ 60 DEG C.
Variable Section Steel damping element according to the design needs can also special designing.
The length of shearing resistance block is identical as the equidirectional length of bearing upper base plate, and the thickness of shearing resistance block is according to carrying
Maximum horizontal power determines.
The bolt hole three that connection Variable Section Steel damping element is reserved on shearing resistance block, between the shearing resistance block and upper base plate
It is pasted with bump rubber.
A kind of damping method, using above-mentioned bridge damping bearing, by arranging Variable Section Steel in the bearing surrounding or both sides
Damping element carries out limiting displacement amount and damping to bearing and consumes energy under big shake effect, come reach reduce bridge seismic response and
The purpose of girder falling.
The specific size and quantity of Variable Section Steel damping element, the change are designed according to the shock attenuation needs of bridge damping bearing
Section steel damping element thickness is generally 10 ~ 200mm, and the width of the upper end and lower end is generally 100 ~ 600mm, upper and lower end
Variable cross-section is secondary or higher order functionality form, upper and lower end variable cross-section and centre in the variable cross-section equation of thickness and prolonging direction
The changeover portion radian of uniform cross-section is 45 DEG C ~ 60 DEG C, and the damping efficiency highest of single Variable Section Steel damping element is made by design.
In the utility model, bridge damping bearing can not only be born commonly by force effect, but also can bear to shake greatly
Effect.Damping element space occupancy rate very little, and rapidoprint consumption is few, and damping element is equal in geological process lower stress
Even, damping force can flexible design.Damping element only just plays a role under big shake effect, can avoid bearing and is destroyed before big shake
And bridge structure is caused to be damaged.Damping implementation method is simple, and using Variable Section Steel damping element, damping element can increase the bearing
Horizontal rigidity and vertical rigidity, bearing horizontal loading for being subject under big shake effect can be reduced, moreover it is possible to resist bearing by
Vertical force effect, when damping element is by bearing different horizontal and vertical horizontal loading, two kinds of loads make damping element produce
Raw hysteresis loop different from meets the bridge vertically and horizontally different actual state of geological process, the plastic deformation of damping element
Ability is strong, has good anti-seismic performance and energy dissipation capacity.
The utility model explores a kind of damping element, bridge damping bearing and damping method, and power transmission stress is clear, not only
It is required when can meet bridge normal work and frequently occurred earthquake, and the stress load of bridge can be reduced under strong wind, big shake,
It prevents bridge from excessive horizontal displacement occurs, bridge is avoided to fall beam, and be easy to check and replace.
The utility model explores a kind of damping element, bridge damping bearing and damping method, and power transmission stress is clear, not only
It is required when can meet bridge normal work, frequently occurred earthquake and design earthquake, and can reduce bridge under strong wind, big shake
Stress load prevents bridge from excessive horizontal displacement occurs, bridge is avoided to fall beam, and is easy to check and replace.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on are all contained within the scope of protection of the utility model.
Claims (9)
1. a kind of bridge damping bearing, including upper base plate, lower seat board, spherical crown liner plate, the upper anchor stick for connecting upper base plate, the lower seat of connection
The stick that casts anchor of plate, spherical crown liner plate are connected between upper base plate and lower seat board, characterized in that and further include Variable Section Steel damping element,
The Variable Section Steel damping element is connected to both sides or the surrounding of upper base plate and lower seat board；The top of Variable Section Steel damping element connects
Connect seat board, the lower seat board of lower part connection.
2. bridge damping bearing according to claim 1, characterized in that the Variable Section Steel damping element is horizontal U-shaped block
Shape is formed by cuboid steel plate processing and fabricating；When Variable Section Steel damping element is connected on upper base plate and lower seat board, opening
End is inside, blind end exposes except upper base plate and lower seat board.
3. bridge damping bearing according to claim 1, characterized in that be equipped with plane between spherical crown liner plate and upper base plate and slide
Plate forms slip plane friction auxiliary structure；It is equipped with spherical slide plate between spherical crown liner plate and lower seat board, it is secondary to form rotation spherical friction
Structure.
4. bridge damping bearing according to claim 1, characterized in that the both ends of upper base plate are equipped with for Variable Section Steel
The limited block and groove profile block that damping element is limited, groove profile block be equipped with groove, Variable Section Steel damping element it is upper
Portion is located in the groove of groove profile block, and Variable Section Steel damping element upper end end face is adjacent to limited block；The bridge damping bearing
Further include shearing resistance block, connection bolt two, the top of Variable Section Steel damping element passes through in shearing resistance block, the connection connection of bolt two
Seat board.
5. bridge damping bearing according to claim 4, characterized in that the rectangular cross-section of limited block, groove profile block
Inside is pasted with anti-slip material, and anti-slip material is PTFE tread plates.
6. bridge damping bearing according to claim 4, characterized in that be reserved on shearing resistance block for connecting variable cross-section
The bolt hole three of steel damping element, rubber block is pasted between shearing resistance block and upper base plate.
7. bridge damping bearing according to claim 1, characterized in that the lower seat board is equipped with for installing variable cross-section
The bolt hole one of steel damping element, is additionally provided on lower seat board and the matched spill of Variable Section Steel damping element thickness and width is cut
Face, Variable Section Steel damping element lower part is by connecting the lower seat board of the connection of bolt one.
8. bridge damping bearing according to claim 1, characterized in that Variable Section Steel damping element is change symmetrical above and below
Cross sectional shape；The upper and lower part of Variable Section Steel damping element is variable cross-section shape, and is reserved with for connecting bolt
Bolt hole two；The centre of Variable Section Steel damping element is uniform cross-section shape.
9. bridge damping bearing according to claim 1, characterized in that Variable Section Steel damping element is arranged symmetrically in the seat of honour
The both sides or surrounding of plate and lower seat board, number are one or two or more；Variable Section Steel damping element thickness is 10 ~ 200mm,
Width is 100 ~ 600mm, top variable cross-section and intermediate uniform cross-section, the changeover portion radian of lower part variable cross-section and intermediate uniform cross-section
It is 45 DEG C ~ 60 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721790460.4U CN207760718U (en) | 2017-12-20 | 2017-12-20 | A kind of bridge damping bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721790460.4U CN207760718U (en) | 2017-12-20 | 2017-12-20 | A kind of bridge damping bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207760718U true CN207760718U (en) | 2018-08-24 |
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ID=63187840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721790460.4U Active CN207760718U (en) | 2017-12-20 | 2017-12-20 | A kind of bridge damping bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207760718U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815962A (en) * | 2017-12-20 | 2018-03-20 | 株洲时代新材料科技股份有限公司 | A kind of bridge damping bearing and damping method |
| CN109610301A (en) * | 2019-01-29 | 2019-04-12 | 中铁二院工程集团有限责任公司 | Nearly tomography bridge damping energy consumption three-dimensional limit metal damping unit and installation method |
-
2017
- 2017-12-20 CN CN201721790460.4U patent/CN207760718U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815962A (en) * | 2017-12-20 | 2018-03-20 | 株洲时代新材料科技股份有限公司 | A kind of bridge damping bearing and damping method |
| CN109610301A (en) * | 2019-01-29 | 2019-04-12 | 中铁二院工程集团有限责任公司 | Nearly tomography bridge damping energy consumption three-dimensional limit metal damping unit and installation method |
| CN109610301B (en) * | 2019-01-29 | 2023-08-04 | 中铁二院工程集团有限责任公司 | Damping energy consumption three-way limiting metal damping device for near-fault bridge and installation method |
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