CN201362820Y - Fixed support for shock absorption and isolation of bridge - Google Patents
Fixed support for shock absorption and isolation of bridge Download PDFInfo
- Publication number
- CN201362820Y CN201362820Y CNU2009200792467U CN200920079246U CN201362820Y CN 201362820 Y CN201362820 Y CN 201362820Y CN U2009200792467 U CNU2009200792467 U CN U2009200792467U CN 200920079246 U CN200920079246 U CN 200920079246U CN 201362820 Y CN201362820 Y CN 201362820Y
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- bridge
- support plate
- lower support
- fixed bearing
- plate
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Abstract
The utility model discloses a fixed support for shock absorption and isolation of a bridge, which aims at leading the bridge to have excellent shock absorption and isolation performance and self-resetting capability and is particularly applicable to a railway simply supported beam bridge. The fixed support comprises an upper support plate (10), a lower support plate (40), an upper swing component (20) and a lower swing component (30); wherein the upper swing component (20) and the lower swing component (30) are arranged between the upper support plate (10) and the lower support plate (40); the fixed support is characterized in that the contact surface of the lower support plate (40) and the lower swing component (30) is a V-shaped inclined plane; two inclined planes forming the V-shaped inclined plane are symmetrical corresponding to the longitudinal centerline of the fixed support along the transverse direction; the contact surface of the upper swing component (20) and the lower swing component (30) is a cylindrical surface; the upper swing component (20) is fixedly connected with the upper support plate (10); and longitudinal energy-dissipating components are arranged at intervals along the longitudinal direction and transverse energy-dissipating components are arranged at intervals along the transverse direction between the upper support plate (10) and the lower support plate (40).
Description
Technical field
The utility model relates to bridge seat, particularly a kind of be used for simply supported girder bridge subtract the shock insulation fixed bearing.
Background technology
In the formation of China railways bridge, the overwhelming majority is a simply supported girder bridge, and is highly generally not high.Designing requirement bridge pier, platform are " rigidity " state when operation.Yet, at high intensity Zone, adopt when subtracting isolation design in order to reduce geological process power, require freely supported structure to have certain flexibility, to cut off the approach that big seismic energy is transferred to superstructure.Solving this feasible and the easiest method to contradiction is exactly to utilize bearing as subtracting the ductility that earthquake isolating equipment increases bridge pier and abutment.
The work proterties of vibration absorption and isolation support shows as: be required rigidity when normally runing, when seismic forces surpassed certain value, bearing was surrendered, and produced relative displacement, showed as flexibility.The result who subtracts shock insulation is that bearing can not be passed to superstructure with high seismic energy, and the inertia force that pier bears reduces, and then produces certain relative displacement between the pier beam, promptly changes load with displacement.
The more existing earthquake isolating equipment that subtracts with horizontal flexibility has: laminated rubber bearing, slide plate, roller bearing structure, spherical bearing, lead core rubber support etc.The laminated rubber bearing initial stiffness is low, causes bridge vibration easily, should not be elected to be the railroad bridge vibration absorption and isolation support.Though spherical bearing has horizontal flexibility, the spherical bearing direction across bridge rotates too flexible, under normal service load, cause that easily superstructure produces as diseases such as diaphragm crackings, and the spherical bearing working (machining) efficiency is low, and manufacturing cost is higher.Slide plate and roller bearing structure can not be separately as bearings, and needing to combine with other device with rotating function and runback potential energy power could be as the bearing of simply supported beam.Though lead core rubber support is used morely abroad, majority is to be used in road bridge and the building construction.
The utility model content
Technical problem to be solved in the utility model provides a kind of bridge and subtracts the shock insulation fixed bearing, and this bearing has good isolation property and the runback potential energy power of subtracting.
The technical scheme that its technical problem that solves the utility model adopts is: bridge of the present utility model subtracts the shock insulation fixed bearing, comprise upper bracket plate and lower support plate, and be arranged between the two go up pendulum member, bottom member, it is characterized in that: the contact surface of described lower support plate and bottom member is the V-type inclined-plane, and two inclined-planes that constitute this V-type inclined-plane are along the longitudinal centre line symmetry of direction across bridge with respect to fixed bearing; The contact surface of last pendulum member and bottom member is the face of cylinder; Last pendulum member is fixedlyed connected with the upper bracket plate; Between upper bracket plate and lower support plate, to being arranged at intervals with vertical power consumption member, be arranged at intervals with horizontal power consumption member along direction across bridge along suitable bridge.
In technique scheme, described vertical power consumption member is to be fixedly installed on the upper bracket plate along the steel semi girder of bridge to both sides, described horizontal power consumption member is the steel semi girder that is fixedly installed on upper bracket plate direction across bridge both sides, and the lower end of each steel semi girder is stretched in the retaining groove that is arranged on the lower support plate.
In technique scheme, the end face of described lower support plate offers along the direction across bridge direction and extends direction recess, and the bottom surface of bottom member then has the guiding rib that protrudes in this direction recess.
The beneficial effects of the utility model are, have good isolation property and the runback potential energy power of subtracting; The dynamic characteristics that subtracts the shock insulation requirement realizes by the combination of the face of cylinder, inclined-plane and power consumption member easily; Simple in structure, compact, cost is low; There is not specific (special) requirements with being connected of Dun Liang, easy for installation.What be especially suitable for use as Simple Supported Railway Bridges subtracts the shock insulation fixed bearing.
Description of drawings
This manual comprises following two width of cloth accompanying drawings:
Fig. 1 be the utility model bridge subtract the shock insulation fixed bearing along bridge to half sectional view;
Fig. 2 is the half sectional view that the utility model bridge subtracts shock insulation fixed bearing direction across bridge.
Component, toponym and pairing mark among the figure: upper bracket plate 10, steel semi girder 11, steel semi girder 12, steel semi girder 13, steel semi girder 14, on put member 20, corrosion resistant plate 21, bottom member 30, guiding rib 31, polyfluortetraethylene plate 32, lower support plate 40, direction recess 41, retaining groove 42.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
With reference to Fig. 1, bridge of the present utility model subtracts the shock insulation fixed bearing, and bridge subtracts the shock insulation fixed bearing, comprises upper bracket plate 10 and lower support plate 40, and is arranged between the two upward pendulum member 20, bottom member 30.With reference to Fig. 2, described lower support plate 40 is the V-type inclined-plane with the contact surface of bottom member 30, and two inclined-planes that constitute this V-type inclined-plane are along the longitudinal centre line symmetry of direction across bridge with respect to fixed bearing.With reference to Fig. 1, on put member 20 and bottom member 30 contact surface be the face of cylinder, on put member 20 and fixedly connected with upper bracket plate 10.See figures.1.and.2, between upper bracket plate 10 and lower support plate 40, to being arranged at intervals with vertical power consumption member, be arranged at intervals with horizontal power consumption member along direction across bridge along suitable bridge.
After taking technique scheme, more than the rotation between pendulum member 20, bottom member 30 faces of cylinder adapts to the rotational deformation of beam, with the longitudinal horizontal force of the anti-thrust-balancing train on the face of cylinder, and provides runback potential energy power; The direction across bridge direction, lower support plate 40 is the V-type inclined-plane with the contact surface of bottom member 30, transverse horizontal power with the sliding force on inclined-plane and frictional force opposing train, both guaranteed that bearing had enough rigidity under normal transverse horizontal load action, provide required flexibility during again for earthquake, and have runback potential energy power; And with the elastic resistance of power consumption member provide additional vertically, the transverse horizontal drag, promptly main surrender by the member that vertically, laterally consumes energy comes earthquake energy, the surrender power consumption of power consumption member provides a kind of damping action to the relative motion of Dun Liang, when the frequency component of seismic wave is identical with natural frequency of structures, the effect of resonating of preventing will be played.In sum, fixed bearing of the present utility model has good isolation property and the runback potential energy power of subtracting.
With reference to Fig. 1, described vertical power consumption member is to be fixedly installed on upper bracket plate 10 along the steel semi girder 11,12 of bridge to both sides.With reference to Fig. 2, described horizontal power consumption member is the steel semi girder 13,14 that is fixedly installed on upper bracket plate 10 direction across bridge both sides.The lower end of each steel semi girder 11,12,13,14 is stretched in the retaining groove 42 that is arranged on the lower support plate 40.Can adopt overall structure between each steel semi girder 11,12,13,14 and the upper bracket plate 10, perhaps adopt detachable mounting structure.See figures.1.and.2, the end face of described lower support plate 40 offers along the direction across bridge direction and extends direction recess 41, and the bottom surface of bottom member 30 then has the guiding rib 31 that protrudes in this direction recess 41.With reference to Fig. 2, be inlaid with between the described contact surface of going up pendulum member 20 and bottom member 30 that corrosion resistant plate 21, polyfluortetraethylene plate 32 by the face of cylinder constitute to the part that rubs.
The above the utility model bridge that just explains through diagrams subtracts some principles of shock insulation fixed bearing, be not be the utility model to be confined to shown in and in described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized all belongs to the claim that the utility model is applied for.
Claims (5)
1. bridge subtracts the shock insulation fixed bearing, comprise upper bracket plate (10) and lower support plate (40), and be arranged between the two go up pendulum member (20), bottom member (30), it is characterized in that: described lower support plate (40) is the V-type inclined-plane with the contact surface of bottom member (30), and two inclined-planes that constitute this V-type inclined-plane are along the longitudinal centre line symmetry of direction across bridge with respect to fixed bearing; Last pendulum member (20) is the face of cylinder with the contact surface of bottom member (30); Last pendulum member (20) is fixedlyed connected with upper bracket plate (10); Between upper bracket plate (10) and lower support plate (40), to being arranged at intervals with vertical power consumption member, be arranged at intervals with horizontal power consumption member along direction across bridge along suitable bridge.
2. bridge as claimed in claim 1 subtracts the shock insulation fixed bearing, it is characterized in that: described vertical power consumption member is for being fixedly installed on upper bracket plate (10) along the steel semi girder (11,12) of bridge to both sides, and the lower end of each steel semi girder (11,12) is stretched in the retaining groove (42) that is arranged on the lower support plate (40).
3. bridge as claimed in claim 1 subtracts the shock insulation fixed bearing, it is characterized in that: described horizontal power consumption member is for being fixedly installed on the steel semi girder (13,14) of upper bracket plate (10) direction across bridge both sides, and the lower end of each steel semi girder (13,14) is stretched in the retaining groove (42) that is arranged on the lower support plate (40).
4. bridge as claimed in claim 1 subtracts the shock insulation fixed bearing, it is characterized in that: the end face of described lower support plate (40) offers along the direction across bridge direction and extends direction recess (41), and the bottom surface of bottom member (30) then has the guiding rib (31) that protrudes in this direction recess (41).
5. bridge as claimed in claim 1 subtracts the shock insulation fixed bearing, it is characterized in that: be inlaid with between the described contact surface of going up pendulum member (20) and bottom member (30) by the corrosion resistant plate (21) on the face of cylinder, polyfluortetraethylene plate (32) formation to the part that rubs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200792467U CN201362820Y (en) | 2009-02-26 | 2009-02-26 | Fixed support for shock absorption and isolation of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200792467U CN201362820Y (en) | 2009-02-26 | 2009-02-26 | Fixed support for shock absorption and isolation of bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201362820Y true CN201362820Y (en) | 2009-12-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200792467U Expired - Lifetime CN201362820Y (en) | 2009-02-26 | 2009-02-26 | Fixed support for shock absorption and isolation of bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201362820Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107794839A (en) * | 2017-11-30 | 2018-03-13 | 中铁二院工程集团有限责任公司 | A kind of stopping means of vibration absorption and isolation support |
| CN107806011A (en) * | 2017-11-30 | 2018-03-16 | 中铁二院工程集团有限责任公司 | A kind of small deformation friction pendulum support |
| CN107841942A (en) * | 2017-11-30 | 2018-03-27 | 中铁二院工程集团有限责任公司 | A kind of hyperboloid friction pendulum support |
| CN108004915A (en) * | 2017-11-30 | 2018-05-08 | 中铁二院工程集团有限责任公司 | A kind of novel friction puts bearing |
| CN109555006A (en) * | 2018-10-29 | 2019-04-02 | 山东理工大学 | Control beam spring vibration absorber and control method |
| CN109778686A (en) * | 2019-03-18 | 2019-05-21 | 中铁二院工程集团有限责任公司 | A kind of railroad bridge vibration absorption and isolation support with multiple limit function |
| CN110565504A (en) * | 2019-08-29 | 2019-12-13 | 南昌大学 | Multifunctional anti-seismic stop block structure capable of preventing seismic damage |
-
2009
- 2009-02-26 CN CNU2009200792467U patent/CN201362820Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108004915B (en) * | 2017-11-30 | 2023-08-11 | 中铁二院工程集团有限责任公司 | Novel friction pendulum support |
| CN107806011A (en) * | 2017-11-30 | 2018-03-16 | 中铁二院工程集团有限责任公司 | A kind of small deformation friction pendulum support |
| CN107841942A (en) * | 2017-11-30 | 2018-03-27 | 中铁二院工程集团有限责任公司 | A kind of hyperboloid friction pendulum support |
| CN108004915A (en) * | 2017-11-30 | 2018-05-08 | 中铁二院工程集团有限责任公司 | A kind of novel friction puts bearing |
| CN107794839B (en) * | 2017-11-30 | 2023-07-25 | 中铁二院工程集团有限责任公司 | Limiting device of shock-absorbing and isolating support |
| CN107794839A (en) * | 2017-11-30 | 2018-03-13 | 中铁二院工程集团有限责任公司 | A kind of stopping means of vibration absorption and isolation support |
| CN107841942B (en) * | 2017-11-30 | 2023-08-11 | 中铁二院工程集团有限责任公司 | Hyperboloid friction pendulum support |
| CN107806011B (en) * | 2017-11-30 | 2023-08-22 | 中铁二院工程集团有限责任公司 | Small-deformation friction pendulum support |
| CN109555006A (en) * | 2018-10-29 | 2019-04-02 | 山东理工大学 | Control beam spring vibration absorber and control method |
| CN109555006B (en) * | 2018-10-29 | 2020-10-02 | 山东理工大学 | Beam spring vibration damper |
| CN109778686A (en) * | 2019-03-18 | 2019-05-21 | 中铁二院工程集团有限责任公司 | A kind of railroad bridge vibration absorption and isolation support with multiple limit function |
| CN109778686B (en) * | 2019-03-18 | 2024-01-23 | 中铁二院工程集团有限责任公司 | Railway bridge shock absorption and insulation support with multiple limiting functions |
| CN110565504A (en) * | 2019-08-29 | 2019-12-13 | 南昌大学 | Multifunctional anti-seismic stop block structure capable of preventing seismic damage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091216 |