CN208857684U - A kind of bridge vibration absorption and isolation support with girder falling function - Google Patents
A kind of bridge vibration absorption and isolation support with girder falling function Download PDFInfo
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- CN208857684U CN208857684U CN201821565765.XU CN201821565765U CN208857684U CN 208857684 U CN208857684 U CN 208857684U CN 201821565765 U CN201821565765 U CN 201821565765U CN 208857684 U CN208857684 U CN 208857684U
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Abstract
The utility model relates to a kind of bridge vibration absorption and isolation supports with girder falling function, including upper base plate and lower seat board, the bottom surface of upper base plate and lower seat board top surface are concave spherical surface, the edge of the edge of upper base plate bottom surface and lower seat board top surface is provided with boss, it is respectively arranged with annular damper pad and lower annular damper pad on the inside of upper lower convex platform, there is compression surplus；It is provided with the spherical crown liner plate that top and bottom are convex spherical between upper base plate and lower seat board, there is mobile space between spherical crown liner plate lateral edge and boss.The structure by using included annular damper pad buffering method and girder falling boss, the horizontal earthquake impulse force being effectively reduced under ultimate angle operating condition, guarantee that the design corner of pendulum-type shock isolating pedestal controls in tolerance zone by girder falling boss, it is automatically reset after shake using beam body weight component, suitable for having the highway for subtracting shock insulation function demand, city rail bridge and small and medium construction etc..
Description
Technical field
There are the highway for subtracting shock insulation demand, city rail bridge and small and medium construction support, tool the utility model relates to a kind of
Body is related to a kind of bridge vibration absorption and isolation support with girder falling function.
Background technique
Bridge pad is the important support component between bridge pier and beam body, can be steady by the dead load on girder construction top and mobile load
Surely it is transmitted to pier, and is adapted to since temperature is flexible, beam body is crept and the displacement of vehicle braking force generation, corner demand.Bridge
Beam support divides conventional seat and vibration absorption and isolation support two major classes.
In recent years, country puts more effort to infrastructure, and bridge construction obtains high speed development, the bridge of various structure novels
Continuously emerge, after especially Wenchuan earthquake in 2008, the demand for subtracting shock insulation to bridge is stronger, then, all kinds of bridges subtract every
Shake support obtains exploitation and application, such as lead rubber laminated bearing, high-damping rubber shock isolating pedestal, pendulum-type vibration absorption and isolation support,
And there are various problems for these supports, if lead rubber laminated bearing and high-damping rubber shock isolating pedestal durability are poor,
Highlight lines, violent earthquake displacement operating condition are lauched that straight snips shear deformation is limited, and required height of support and horizontal size are bigger, and bearing capacity compared with
It is low, it limits to a certain extent and applies and improve cost, economy is poor；Pendulum-type vibration absorption and isolation support is in spherical bearing
On the basis of be evolved, upper plane polyfluortetraethylene plate is changed to spherical surface polyfluortetraethylene plate, a kind of pendulum-type is formed and subtracts shock insulation branch
Seat makes force of sliding friction be changed into the restoring force with Hysteresis Behavior, but pendulum-type vibration absorption and isolation support is all that ultimate angle is set at present
Meter is easy to go beyond the limit of corner, beam body is caused to fall off in the case where seldom meeting operating condition earthquake.
In certain specific pendulum-type vibration absorption and isolation support designs, wirerope measure is provided between upper and lower seat board, but right
Support steel plate two sides form lateral force, be easy to cause steel plate to draw and burst, cause support allomeric function to lose, prevent instead bridge
Fall beam measure cause it is unfavorable, construct it is extremely unreasonable.
Summary of the invention
For the pendulum-type vibration absorption and isolation support in current vibration absorption and isolation support, it is unable to satisfy the status of current falling-off prevention measures, this
Utility model provides a kind of bridge vibration absorption and isolation support with girder falling function, using included annular damper pad buffering method and
Girder falling boss, the horizontal earthquake impulse force being effectively reduced under ultimate angle operating condition guarantee pendulum-type shock insulation by girder falling boss
The design corner of support controls in tolerance zone, and provides double-layer seal to internal spherical surface stainless steel plate and spherical slide plate and arrange
It applies.
The technology employed by the present utility model is
A kind of bridge vibration absorption and isolation support with girder falling function, including upper base plate and lower seat board, it is characterised in that:
The bottom surface of upper base plate and lower seat board top surface are concave spherical surface, the edge at the edge of upper base plate bottom surface and lower seat board top surface
It is provided with boss, annular damper pad and lower annular damper pad are respectively arranged on the inside of upper lower convex platform, there is compression surplus；
The spherical crown liner plate that top and bottom are convex spherical, spherical crown liner plate side face edge are provided between upper base plate and lower seat board
There is mobile space between edge and boss.
The concave spherical surface on the inside of concave spherical surface and lower seat board top surface boss on the inside of the boss of upper base plate bottom surface is respectively welded ball
Face stainless steel plate and lower peripheral surface stainless steel plate.
Spherical surface polyfluortetraethylene plate and lower peripheral surface poly- four are inlaid on the convex spherical of spherical crown liner plate top and bottom respectively
Vinyl fluoride plate.
The area of upper spherical surface polyfluortetraethylene plate and lower peripheral surface polyfluortetraethylene plate is respectively less than the convex spherical of spherical crown liner plate.
The convex spherical edge of spherical crown liner plate top and bottom is respectively arranged with ball face sealing circle and lower peripheral surface sealing ring,
On the outside of spherical surface polyfluortetraethylene plate.
The boss top surface of lower seat board is provided with ring type seal.
Upper base plate and lower seat board circumferential direction edge are respectively arranged with upper ear plate and lower ear plate.
Upper ear plate and lower ear plate respectively with upper base plate and lower seat board monoblock cast or welded connecting.
The utility model has the advantage that
One, since upper and lower seat board uses boss design protection, so that spherical crown liner plate is past back and forth within the scope of ultimate angle
Physical pendulum is dynamic, has the function of girder falling；Included annular damper pad reduces the impact force of earthquake moment, reduces the wink to boss
Between stress, realize falling-off prevention measures, further reduced the damage of bridge pad, protect the peace under bridge earthquake operating condition
Entirely.
Two, this vibration absorption and isolation support prevents dust and sundries to enter upper lower peripheral surface polytetrafluoroethyl-ne by upper and lower ball face sealing circle
Spherical surface friction between alkene plate and upper lower peripheral surface stainless steel plate is secondary, extends slide plate service life, and then improve support operation
Service life.
Three, this vibration absorption and isolation support passes through the ring type seal between upper and lower seat board, it is therefore prevented that dust and sundries enter spherical cavity
Inside protects internal spherical rotation, improves support service life.
Four, the horizontal size of seat board up and down of this vibration absorption and isolation support is approximately equal, and the manufacture and installation to support are extremely convenient,
Processing cost is reduced, installation effectiveness is improved, it is up big and down small, up-small and down-big unusual to solve current pendulum-type vibration absorption and isolation support
Installation question caused by constructing.
Detailed description of the invention
Fig. 1 is the utility model structure diagram.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is M partial enlarged view in Fig. 1.
Fig. 4 is N partial enlarged view in Fig. 1.
Fig. 5 is the schematic diagram of one semiosis of construction ultimate angle.
Fig. 6 is the schematic diagram of the construction ultimate angle state.
Fig. 7 is Q partial enlarged view in Fig. 6.
Fig. 8 is P partial enlarged view in Fig. 6.
Marked in the figure:
The lower seat board of 1-1-upper ear plate, 1-2-lower ear plate, 2-1-upper base plate, 2-2-, 3-1-go up spherical surface stainless steel plate,
3-2-lower peripheral surface stainless steel plate, 4-1-go up ball face sealing circle, and 4-2-lower peripheral surface sealing ring, 5-1-go up spherical surface polytetrafluoroethylene (PTFE)
Plate, 5-2-lower peripheral surface polyfluortetraethylene plate, 6-spherical crown liner plates, 7-1-go up annular damper pad, the lower annular damper pad of 7-2-,
8-ring type seals.
Specific embodiment
The utility model is described in detail With reference to embodiment.
The utility model relates to a kind of bridge vibration absorption and isolation supports with girder falling function, including upper base plate 2-1 and lower seat
Plate 2-2, the bottom surface of upper base plate 2-1 and the lower top surface seat board 2-2 are concave spherical surface, the edge of the bottom surface upper base plate 2-1 and lower seat board 2-2
The edge of top surface is provided with boss, and material is not less than low-alloy steel or middle carbon cast steel, is respectively arranged on the inside of upper lower convex platform
Upper annular damper pad 7-1 and lower annular damper pad 7-2, the compression surplus with 0.2 ~ 0.7mm, material be high-damping rubber or its
He has the materials such as the polyurethane of certain compressed capability.Upper and lower annular damper pad internal-and external diameter difference is equal, and thickness is between 10 ~ 30mm
Between, it is set according to support horizontal bearing capacity.Being provided with top and bottom between upper base plate 2-1 and lower seat board 2-2 is convex ball
The spherical crown liner plate 6 in face, material can be the materials such as low-alloy steel or aluminium alloy, have between 6 lateral edge of spherical crown liner plate and boss
Mobile space.The boss top surface of lower seat board 2-2 is provided with ring type seal 8, uses neoprene at normal temperature, cold-resistant area is adopted
Use natural rubber.
The concave spherical surface on the inside of concave spherical surface and the lower top surface seat board 2-2 boss on the inside of the boss of the bottom surface upper base plate 2-1 is respectively welded
There are upper spherical surface stainless steel plate 3-1 and lower peripheral surface stainless steel plate 3-2, is welded using inert gas, with a thickness of 2 ~ 5mm, with specific reference to
Earthquake peak acceleration setting.It is inlaid with spherical surface polyfluortetraethylene plate respectively on the convex spherical of 6 top and bottom of spherical crown liner plate
5-1 and lower peripheral surface polyfluortetraethylene plate 5-2.The area of upper spherical surface polyfluortetraethylene plate 5-1 and lower peripheral surface polyfluortetraethylene plate 5-2
Modified or non-modified material can be used with a thickness of 7 ~ 8mm in the respectively less than convex spherical of spherical crown liner plate 6.6 top surface of spherical crown liner plate and
The convex spherical edge of bottom surface is respectively arranged with ball face sealing circle 4-1 and lower peripheral surface sealing ring 4-2, and material uses at normal temperature
Neoprene, area of resisting cold use natural rubber, are respectively positioned on the outside of spherical surface polyfluortetraethylene plate, the two outer diameter is apart from spherical crown liner plate
6 outer diameters are greater than 10mm, and circumferential direction is with a thickness of 10 ~ 15mm.
Upper base plate 2-1 and lower seat board 2-2 circumferential direction edge are respectively arranged with upper ear plate 1-1 and lower ear plate 1-2, and internal diameter is identical.
Upper ear plate 1-1 and lower ear plate 1-2 respectively with upper base plate 2-1 and lower seat board 2-2 monoblock cast or welded connecting.Upper ear plate 1-1 and
Anchor bolt hole is drilled on lower ear plate 1-2 respectively, bears horizontal bearing capacity, upper ear plate 1-1 and lower ear plate 1-2 can be uniform or non-equal
It is even to be laid in upper base plate 2-1 and lower seat board 2-2 surrounding, and can more bolts hole, the design of more otic placodes, determined according to specific mechanics parameter
It is fixed.
The upper lower peripheral surface stainless steel plate and upper and lower polyfluortetraethylene plate of the utility model respectively constitute spherical rotation up and down and rub
Pair is wiped, the secondary coefficient of frictions of two frictions are close, corner is identical.
The ring type seal of the utility model is embedded in lower seat board both ends top, and support is not involved in movement when swinging；Up and down
Reasonable connection type is used on the inside of annular damper pad and upper and lower seat board both ends boss, and damping work is played under ultimate angle operating condition
With not working when less than ultimate angle.
The utility model utilizes upper spherical surface stainless steel plate 3-1 and upper spherical surface polyfluortetraethylene plate 5-1, lower peripheral surface stainless steel plate
Swing up and down spherical surface realization composed by 3-2 and lower peripheral surface polyfluortetraethylene plate 5-2 and subtract shock insulation function, by upper base plate 2-1,
The lower both ends seat board 2-2 design boss and upper annular damper pad 7-1, lower annular damper pad 7-2 realize that horizontal shock-absorbing and girder falling are arranged
Apply, be mainly used in have subtract highway, city rail bridge and small and medium construction of shock insulation function demand etc..
If Fig. 5 is the present embodiment swing state for designing the range of corner β/2, in upper base plate 2-1 center line and spherical crown liner plate 6
Heart line, lower seat board 2-2 center line are identical as 6 centerlines of spherical crown liner plate, in mutual angle of arranging.
If Fig. 6 is the present embodiment limit swing state for designing corner β, segment arris and upper annular in spherical crown liner plate 6
The lower segment arris of damping mat 7-1, spherical crown liner plate 6 contacts in design angle range with lower annular damper pad 7-2, is formed certain
Bumper and absorbing shock, damping clearance is set within the scope of 5-10mm.Upper base plate 2-1 and the boss at the lower both ends seat board 2-2 limit spherical crown
The swing angle of liner plate 6, swings it within the scope of design angle；Upper ball face sealing circle 4-1 and lower peripheral surface sealing ring 4-2 are in pole
When limiting corner β state, it is necessary within the scope of upper spherical surface stainless steel plate 3-1 and lower peripheral surface stainless steel plate 3-2 design string diameter.
The content of the utility model is not limited to cited by embodiment, and those of ordinary skill in the art are practical new by reading this
Type specification and to any equivalent transformation that technical solutions of the utility model are taken, be the claim institute of the utility model
Cover.
Claims (8)
1. a kind of bridge vibration absorption and isolation support with girder falling function, including upper base plate (2-1) and lower seat board (2-2), feature
It is:
The bottom surface of upper base plate (2-1) and the top surface lower seat board (2-2) are concave spherical surface, the edge and lower seat of the bottom surface upper base plate (2-1)
The edge of the top surface plate (2-2) is provided with boss, and annular damper pad (7-1) He Xiahuan is respectively arranged on the inside of upper lower convex platform
Shape damping mat (7-2) has compression surplus；
The spherical crown liner plate (6) that top and bottom are convex spherical, spherical crown are provided between upper base plate (2-1) and lower seat board (2-2)
Liner plate (6) has mobile space between lateral edge and boss.
2. a kind of bridge vibration absorption and isolation support with girder falling function according to claim 1, it is characterised in that:
The concave spherical surface on the inside of concave spherical surface and the top surface lower seat board (2-2) boss on the inside of the boss of the bottom surface upper base plate (2-1) is respectively welded
There are upper spherical surface stainless steel plate (3-1) and lower peripheral surface stainless steel plate (3-2).
3. a kind of bridge vibration absorption and isolation support with girder falling function according to claim 2, it is characterised in that:
It is inlaid with spherical surface polyfluortetraethylene plate (5-1) and lower peripheral surface respectively on the convex spherical of spherical crown liner plate (6) top and bottom
Polyfluortetraethylene plate (5-2).
4. a kind of bridge vibration absorption and isolation support with girder falling function according to claim 3, it is characterised in that:
The area of upper spherical surface polyfluortetraethylene plate (5-1) and lower peripheral surface polyfluortetraethylene plate (5-2) is respectively less than spherical crown liner plate (6)
Convex spherical.
5. a kind of bridge vibration absorption and isolation support with girder falling function according to claim 4, it is characterised in that:
The convex spherical edge of spherical crown liner plate (6) top and bottom is respectively arranged with ball face sealing circle (4-1) and lower peripheral surface sealing
It encloses (4-2), is respectively positioned on the outside of spherical surface polyfluortetraethylene plate.
6. a kind of bridge vibration absorption and isolation support with girder falling function according to claim 5, it is characterised in that:
The boss top surface of lower seat board (2-2) is provided with ring type seal (8).
7. a kind of bridge vibration absorption and isolation support with girder falling function according to claim 1, it is characterised in that:
Upper base plate (2-1) and the circumferential edge of lower seat board (2-2) are respectively arranged with upper ear plate (1-1) and lower ear plate (1-2).
8. a kind of bridge vibration absorption and isolation support with girder falling function according to claim 7, it is characterised in that:
Upper ear plate (1-1) and lower ear plate (1-2) respectively with upper base plate (2-1) and lower seat board (2-2) monoblock cast or welded connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821565765.XU CN208857684U (en) | 2018-09-26 | 2018-09-26 | A kind of bridge vibration absorption and isolation support with girder falling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821565765.XU CN208857684U (en) | 2018-09-26 | 2018-09-26 | A kind of bridge vibration absorption and isolation support with girder falling function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208857684U true CN208857684U (en) | 2019-05-14 |
Family
ID=66419197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821565765.XU Active CN208857684U (en) | 2018-09-26 | 2018-09-26 | A kind of bridge vibration absorption and isolation support with girder falling function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208857684U (en) |
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2018
- 2018-09-26 CN CN201821565765.XU patent/CN208857684U/en active Active
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