CN204435217U - Girder falling subtracts shock insulation ball shaped steel bearing - Google Patents
Girder falling subtracts shock insulation ball shaped steel bearing Download PDFInfo
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- CN204435217U CN204435217U CN201520014487.9U CN201520014487U CN204435217U CN 204435217 U CN204435217 U CN 204435217U CN 201520014487 U CN201520014487 U CN 201520014487U CN 204435217 U CN204435217 U CN 204435217U
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Abstract
The utility model discloses a kind of girder falling and subtract shock insulation ball shaped steel bearing, comprise upper bracket plate, lower support plate, be arranged on the ball impression liner plate below upper bracket plate, be arranged on the ball liner plate supporting with ball impression liner plate above lower support plate, sphere slide plate is provided with between ball impression liner plate and ball liner plate, sliding friction energy dissipating is provided with secondary between ball liner plate and lower support plate, its key is: between upper bracket plate and lower support plate, be provided with anti-fall girder apparatus, described anti-fall girder apparatus comprise sliding sleeve and one end respectively with upper bracket plate and lower support plate hinged, spacing two pull bars in the cavity of sliding sleeve of other end slip.The utility model beneficial effect is: under non-earthquake state, and the utility model has all functions of common ball bearing; When there being rarely occurred earthquake to occur, the displacement of sliding friction energy dissipating pair will exceed design load, and now anti-fall girder apparatus plays a role, and prevent the further displacement of bearing, avoid beam to come off from substructure supporting, the danger of the beam that falls.
Description
Technical field
The utility model belongs to bridge pad field, is specifically related to a kind of ball shaped steel bearing with double protection.
Background technology
China is the multiple country of an earthquake, in recent decades, along with taking place frequently of global earthquakes, the quake evaluation technology of engineering structures is subject to the attention of each large-engineering designing unit, tradition improve the rigidity of structure seismic measures gradually by fast development subtract seismic isolation technology replace.When earthquake produces, the beam that falls of bridge superstructure is the one of the main reasons of bridge collapse, if act on structural seismic forces be enough to make common bearing rigid limit device destroy time, then superstructure be easy to from supporting come off.Collapse-proof systems be a kind ofly novel to subtract, seismic design and reinforcement means, its Main Function stops beam to come off from supporting, and it is generally made up of the lap length of beam and supporting, stopping means, linkage.The stopping means that common bridge pad is general is monolithic, is rigid contact, and rigid limit device intensity generally can be greater than the design strength of bridge pier, and when seismic forces arrives, the destruction situation of bridge pier is comparatively serious, still there will be to fall beam phenomenon.Common bridge pad does not design seismic isolation device and linkage yet simultaneously.
Authorization Notice No. is that the Chinese patent of CN 202865736 U discloses a kind of girder falling bearing, and but it is connected with anti-slip device its mounting structure more complicated between upper and lower junction steel plate, is difficult to apply.
Summary of the invention
The technical problems to be solved in the utility model there is provided a kind of girder falling and subtracts shock insulation ball shaped steel bearing, and being connected by upper and lower support plate by simple sliding sleeve and pull bar is an entirety, plays anti-fall beam action.
For reaching goal of the invention, the technical solution adopted in the utility model is: a kind of girder falling subtracts shock insulation ball shaped steel bearing, comprise upper bracket plate, lower support plate, be arranged on the ball impression liner plate below upper bracket plate, be arranged on the ball liner plate supporting with ball impression liner plate above lower support plate, sphere slide plate is provided with between ball impression liner plate and ball liner plate, sliding friction energy dissipating is provided with secondary between ball liner plate and lower support plate, its key is: between upper bracket plate and lower support plate, be provided with anti-fall girder apparatus, described anti-fall girder apparatus comprise sliding sleeve and one end respectively with upper bracket plate and lower support plate hinged, spacing two pull bars in the cavity of sliding sleeve of other end slip.
Further, the free end of described pull bar is provided with the spacing radial protuberance in sliding sleeve cavity that slides, and radial protuberance is by being fixed on the baffle limiting at sliding sleeve two ends in sliding sleeve.
Further, the connecting portion of the spherical crown shape of described pull bar and upper bracket plate or lower support plate hinged.
Further, be provided with damping rubber block and/or buffering fin in the cavity of sliding sleeve, described damping rubber block and/or buffering fin are located between radial protuberance and baffle plate.
Further, described sliding friction energy dissipating pair comprises the plane slide plate be arranged in ball liner plate groove and the corrosion resistant plate be fixed in lower support plate.
Further, be circumferentially with shear resisting board at ball impression liner plate, shear resisting board is fixed by shearing bolt and lower support plate.
The utility model beneficial effect is: under non-earthquake state, and the utility model has all functions of common ball bearing; When multiple common earthquake occurs, horizontal earthquake power has exceeded the design load of cutting off energy dissipating bolt group, bolt group is cut off, shear resisting board loses limit function, the sliding friction energy dissipating pair be now made up of corrosion resistant plate and plane slide plate plays a role, seismic energy effectively can be converted into heat energy, realize the conversion of energy, play the effect of shock-damping energy-dissipating; When there being rarely occurred earthquake to occur, the displacement of sliding friction energy dissipating pair will exceed design load, and now anti-fall girder apparatus plays a role, and prevent the further displacement of bearing, avoid beam to come off from substructure supporting, the danger of the beam that falls; Anti-fall girder apparatus is simple and easy to use, is convenient to make.
Below in conjunction with accompanying drawing, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of anti-fall girder apparatus in Fig. 1.
In the accompanying drawings: 1 is upper bracket plate, and 2 is lower support plate, and 3 is ball impression liner plates, 4 is ball liner plates, and 5 is sphere slide plates, and 6 is sliding sleeves, 7 is pull bars, and 8 is radial protuberances, and 9 is baffle plates, 10 is damping rubber blocks, 11 is buffering fins, and 12 is plane slide plates, and 13 is corrosion resistant plates, 14 is shear resisting boards, and 15 is shearing bolts.
Detailed description of the invention
Referring to attached Fig. 1 and 2, a kind of girder falling subtracts shock insulation ball shaped steel bearing, comprise upper bracket plate 1, lower support plate 2, be arranged on the ball impression liner plate 3 below upper bracket plate 1, be arranged on the ball liner plate 4 supporting with ball impression liner plate 3 above lower support plate 2, sphere slide plate 5 is provided with between ball impression liner plate 3 and ball liner plate 4, sliding friction energy dissipating is provided with secondary between ball liner plate 4 and lower support plate 2, its key is: between upper bracket plate 1 and lower support plate 2, be provided with anti-fall girder apparatus, described anti-fall girder apparatus comprise sliding sleeve 6 and one end respectively with upper bracket plate 1 and lower support plate 2 hinged, spacing two pull bars 7 in the cavity of sliding sleeve 6 of other end slip.Anti-fall girder apparatus is evenly arranged in the circumference of upper and lower support plate, quantity according to designing requirement different preventing fall girder apparatus is also not quite similar, but length is consistent, ensure that simultaneously stressed, improve overall shock resistance, upper and lower support plate is linked into an integrated entity, improves its globality, under reducing rarely occurred earthquake, produce the risk of beam.
The free end of pull bar 7 is provided with the spacing radial protuberance 8 in sliding sleeve 6 cavity that slides, and radial protuberance 8 is spacing in sliding sleeve 6 by the baffle plate 9 being fixed on sliding sleeve 6 two ends.Bearing is when general state, and pull bar 7 contracts in sliding sleeve 6, and when upper and lower support plate has Relative sliding, pull bar 7 is flexible in sliding sleeve 6.
The connecting portion of the spherical crown shape of pull bar 7 and upper bracket plate 1 or lower support plate 2 hinged.The connecting portion of the spherical crown shape of pull bar 7 to be arranged in the installing hole of upper and lower support plate and by fixed head spacing formation universal hinging structure.Further, the diameter in hole fixed head coordinated with pull bar 7 is greater than the diameter of pull bar 7.
In the cavity of sliding sleeve 6, be provided with damping rubber block 10 and/or buffering fin 11, described damping rubber block 10 and/or buffering fin 11 are located between radial protuberance 8 and baffle plate 9.Damping rubber block 10 and buffering fin 11 are set, can make progressively to increase the active force of pull bar 7 pairs of sliding sleeves 6, prevent from forming impact force to sliding sleeve 6.
When anti-fall girder apparatus specifically makes, the installing hole of baffle plate 9 and damping rubber block 10 passed in pull bar 7 one end and welds with radial protuberance 7, then baffle plate 9 being welded on the two ends of sliding sleeve 6.Baffle plate 9 can bond together with damping rubber block 10 and conveniently install.The wall of sliding sleeve 6 is provided with groove to install buffering fin 11.Pushing drawing rod 7 is in the middle part of sliding sleeve 6 to make the radial protuberance 7 fixing with two pull bars 7 and is close to, and buffering fin 11 is passed the groove on sliding sleeve 6 and welds with sliding sleeve 6.Buffering fin 11 evenly can arrange multilayer in sliding sleeve 6.Further, reserve free gap to during installation two pull bars 7, to facilitate the installation of pull bar 7 and upper and lower support plate.
Sliding friction energy dissipating pair comprises the plane slide plate 12 be arranged in ball liner plate 4 groove and the corrosion resistant plate 13 be fixed in lower support plate 2.
Be circumferentially with shear resisting board 14 at ball impression liner plate 3, shear resisting board 14 is fixed by shearing bolt 15 and lower support plate 2.Inner circle and ball impression liner plate 3 cylindrical of shear resisting board 14 form buckle structure, can bear certain horizontal bearing capacity, when seismic forces be enough to destruction cut off energy dissipating bolt 15 time, shear resisting board 14 loses limit function, and above-described sliding friction energy dissipating adjutant plays a role.The form that shear resisting board 14 can also be designed to the both sides being symmetricly set on ball impression liner plate 12 forms one-way movable support.When cutting off shearing bolt 15 and being cut off, the raw slippage of sliding friction energy dissipating by-product, plays the effect of damping power consumption.
Claims (6)
1. a girder falling subtracts shock insulation ball shaped steel bearing, comprise upper bracket plate (1), lower support plate (2), be arranged on the ball impression liner plate (3) of upper bracket plate (1) below, be arranged on the ball liner plate (4) supporting with ball impression liner plate (3) of lower support plate (2) top, sphere slide plate (5) is provided with between ball impression liner plate (3) and ball liner plate (4), sliding friction energy dissipating is provided with secondary between ball liner plate (4) and lower support plate (2), it is characterized in that: between upper bracket plate (1) and lower support plate (2), be provided with anti-fall girder apparatus, described anti-fall girder apparatus comprise sliding sleeve (6) and one end respectively with upper bracket plate (1) and lower support plate (2) hinged, spacing two pull bars (7) in the cavity of sliding sleeve (6) of other end slip.
2. a kind of girder falling according to claim 1 subtracts shock insulation ball shaped steel bearing, it is characterized in that: the free end of described pull bar (7) is provided with the spacing radial protuberance (8) in sliding sleeve (6) cavity that slides, and radial protuberance (8) is spacing in sliding sleeve (6) by the baffle plate (9) being fixed on sliding sleeve (6) two ends.
3. a kind of girder falling according to claim 2 subtracts shock insulation ball shaped steel bearing, it is characterized in that: the connecting portion of the spherical crown shape of described pull bar (7) and upper bracket plate (1) or lower support plate (2) hinged.
4. a kind of girder falling according to claim 3 subtracts shock insulation ball shaped steel bearing, it is characterized in that: in the cavity of sliding sleeve (6), be provided with damping rubber block (10) and/or buffering fin (11), described damping rubber block (10) and/or buffering fin (11) are located between radial protuberance (8) and baffle plate (9).
5. a kind of girder falling according to claim 1 subtracts shock insulation ball shaped steel bearing, it is characterized in that: described sliding friction energy dissipating pair comprises the plane slide plate (12) be arranged in ball liner plate (4) groove and the corrosion resistant plate (13) be fixed in lower support plate (2).
6. a kind of girder falling according to claim 5 subtracts shock insulation ball shaped steel bearing, it is characterized in that: be circumferentially with shear resisting board (14) at ball impression liner plate (3), and shear resisting board (14) is fixed by shearing bolt (15) and lower support plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520014487.9U CN204435217U (en) | 2015-01-09 | 2015-01-09 | Girder falling subtracts shock insulation ball shaped steel bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520014487.9U CN204435217U (en) | 2015-01-09 | 2015-01-09 | Girder falling subtracts shock insulation ball shaped steel bearing |
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| Publication Number | Publication Date |
|---|---|
| CN204435217U true CN204435217U (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520014487.9U Active CN204435217U (en) | 2015-01-09 | 2015-01-09 | Girder falling subtracts shock insulation ball shaped steel bearing |
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| CN (1) | CN204435217U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839515A (en) * | 2016-05-20 | 2016-08-10 | 成都市新筑路桥机械股份有限公司 | One-way movement three-layer composite damping device |
| CN105908622A (en) * | 2016-05-26 | 2016-08-31 | 中铁大桥勘测设计院集团有限公司 | Anti-drawing spherical support |
| CN106988210A (en) * | 2017-04-26 | 2017-07-28 | 刘丽 | A kind of high highway bridge benzvalene form cushioning support-saddle of damping property |
| CN108203922A (en) * | 2018-02-01 | 2018-06-26 | 广西路桥工程集团有限公司 | Active bearing |
-
2015
- 2015-01-09 CN CN201520014487.9U patent/CN204435217U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839515A (en) * | 2016-05-20 | 2016-08-10 | 成都市新筑路桥机械股份有限公司 | One-way movement three-layer composite damping device |
| CN105908622A (en) * | 2016-05-26 | 2016-08-31 | 中铁大桥勘测设计院集团有限公司 | Anti-drawing spherical support |
| CN105908622B (en) * | 2016-05-26 | 2018-03-09 | 中铁大桥勘测设计院集团有限公司 | A kind of anti-pulling spherical bearing |
| CN106988210A (en) * | 2017-04-26 | 2017-07-28 | 刘丽 | A kind of high highway bridge benzvalene form cushioning support-saddle of damping property |
| CN106988210B (en) * | 2017-04-26 | 2018-09-21 | 芜湖乐佳自动化机械有限公司 | A kind of highway bridge benzvalene form cushioning support-saddle that damping property is high |
| CN108755396A (en) * | 2017-04-26 | 2018-11-06 | 刘丽 | A kind of Buffer Unit for the highway bridge benzvalene form cushioning support-saddle that damping property is high |
| CN108755396B (en) * | 2017-04-26 | 2019-10-22 | 杭州天时亿科技有限公司 | A kind of buffer limit component for the highway bridge benzvalene form cushioning support-saddle that damping property is high |
| CN108203922A (en) * | 2018-02-01 | 2018-06-26 | 广西路桥工程集团有限公司 | Active bearing |
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| C14 | Grant of patent or utility model | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 053000 No. 2488 West Yongxing Road, Hebei, Hengshui Patentee after: Hengshui City quality technical supervision inspection institute Patentee after: Heng an Polytron Technologies Inc Address before: 053000 No. 2488 West Yongxing Road, Hebei, Hengshui Patentee before: Hengshui City quality technical supervision inspection institute Patentee before: Hengshui Rubber Co., Ltd. |