CN2435565Y - Totally-enclosed friction damping support - Google Patents
Totally-enclosed friction damping support Download PDFInfo
- Publication number
- CN2435565Y CN2435565Y CN 00234998 CN00234998U CN2435565Y CN 2435565 Y CN2435565 Y CN 2435565Y CN 00234998 CN00234998 CN 00234998 CN 00234998 U CN00234998 U CN 00234998U CN 2435565 Y CN2435565 Y CN 2435565Y
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- shrouding
- circular hole
- diameter
- slide plate
- bearing
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Abstract
The utility model is suitable to be used in different damping systems of building engineering, bridges and other civil engineering. The utility model is characterized in that when the horizontal side shift of the friction damping support increases to the certain value, a shearing rod or a draw rod takes part in the work, so that the horizontal displacement of the support and a damping layer can be effectively restrained, and the displacement is locked within one limiting value. In addition, the sealing treatment is carried out at the external side of a lamination sliding plate. The sliding deformation is uniformly distributed in the height direction of the lamination sliding plate, so the sealing performance can keep intact, can not be damaged, and has strong durability, after the support generates the horizontal displacement.
Description
The utility model relates to a kind of friction energy-eliminating shock-insulating device in construction engineering, bridge and other civil engineering, relates in particular to the totally-enclosed friction energy-eliminating shock-insulating of a kind of locking type bearing.
In engineering structure, by the shock insulation layer being set and shock-damping energy-dissipating damping support and other parts being set, can effectively alleviate horizontal earthquake action, protection structure, personnel and the safety of inner facility in macroseism at the shock insulation layer.In vibration-isolating system, shock insulation layer parts comprise bearing, damping device, horizontal restoring force parts, wind resisting stability device and the necessary lock-bit limit stoper that bears gravity load.Studies show that the damping ratio of sliding friction bearing is very big, and its first rigidity is big, energy dissipating effectively in shock insulation, can reduce the horizontal sidesway of shock insulation layer again greatly, and double as wind-proof device and vertical bearing device, the safety reliability that shock insulation layer itself reaches engineering structure integral body improved.Therefore slip support abutment can be brought into play good mechanical performance and damping effect in various dissimilar seismic isolation technologies.
But the friction damping support is in practical engineering application, owing to need to satisfy the multiple technologies requirement on using, the sealing of the particularly Security of the horizontal sidesway of damping support, bearing frictional interface and the life requirement of frictional behaviour etc. are so it is bigger to manufacture and design difficulty.Wherein, the Security of bearing Horizontal displacement directly influences the shock insulation reliability of whole engineering structure, the stability and the durability of the good airproof performance bad influence bearing frictional behaviour of frictional interface.In addition, owing to often too emphasize the economical cost of bearing, cause to be difficult to satisfy above-mentioned necessary technology performance requirement.
Usually, for guaranteeing the reliability of damping support horizontal sidesway under geological process, need the limit slippage displacement, and adopt the practice at the additional spacing member of shock insulation layer, spacing member is split type with the friction bearing, is not easy to design and construction.In addition, for solving the sealing problem of frictional interface, usually frictional interface is made static encapsulation process or damping support is done interim packing processing.When slip state does not take place bearing, have encapsulation to a certain degree, but the durability of this class sealing measure is relatively poor, and when slippage took place, encapsulation originally was destroyed easily in slipping.
The totally-enclosed friction energy-eliminating shock-insulating of the locking type bearing that the utility model designing institute proposes has reasonably solved the spacing and slippage interface of slip lock-bit and has glided when sliding displacement (the normal use) does not take place and in geological process and move past problems such as encapsulation in the journey.
The purpose of the utility model design is: under the geological process, at the bearing horizontal sliding initial stage, produce slippage between the lamination slide plate; Under the effect of central nucleus core body, the horizontal sliding distortion is evenly distributed on the height of support direction; Produce frictional damping between slide plate simultaneously, the nuclear core body produces shear deformation and certain restoring force; And lock-bit shear rod or lock-bit pull bar do not participate in work.When the horizontal sidesway of bearing increased to certain value, shear rod or pull bar began to produce shear deformation or tensile buckling and participation work; The circular hole both sides of each layer of bearing slide plate produce the opposite horizontal shear of a pair of direction to relevant shear bar both sides, or pull bar produces oblique pulling force between the upper and lower shrouding of bearing, the sliding displacement of the slide plate of shear rod or pull bar constraint simultaneously.At this moment, shear rod or pull bar have increased horizontal restraint power at damping support and shock insulation layer, thereby with restoring force, damping force that shock insulation layer parts are provided, retrain the Horizontal displacement of shock insulation layer, and displacement is locked in a certain limit value.
The utility model is achieved in that bearing has adopted the tectonic type of the stacked slide plate of multilayer; The central authorities of bearing are provided with the nuclear core body, are made by cylindrical lead rod or rubber rod etc.; Spacing shear rod of built-in lock-bit or limit pull rod have been designed in bearing periphery position; Carried out encapsulation process in lamination slide plate periphery with rubber layer.
The utility model has the advantages that, because bearing has adopted the tectonic type of lamination slide plate, central authorities are provided with the nuclear core body, so sliding displacement and speed can be along evenly distributing on the height of support direction, rather than concentrated occurring on some slippages interface, help reducing the displacement at each slippage interface, and reduce the planar dimension of bearing, the more important thing is that frictional interface and the main body part be convenient to bearing carry out encapsulation process, improve friction stability and durability.Because spacing shear rod of built-in lock-bit or pull bar have been designed in bearing periphery position, so when the horizontal sidesway of bearing increases, the deflection thereupon of shear rod or pull bar; When sidesway reached the permitted value of design, lock-bit shear rod or pull bar were worked, and the sliding displacement of constraint bearing has increased horizontal restraint power at damping support and shock insulation layer like this, the Horizontal displacement of constraint shock insulation layer, and lockable displacement range.In addition, under the horizontal two-dimension geological process, lock-bit shear rod or pull bar can limit the radius of bearing Horizontal displacement, thereby reduced bearing the possibility that vertical bearing capacity lost efficacy take place because of horizontal distortion is excessive.In addition, because encapsulation process carries out at lamination slide plate edges of boards, and the slide relative displacement of every adjacent two layers slide plate is less, thereby bearing is after producing horizontal displacement, and this sealing also can remain intact and not damage.
Below in conjunction with accompanying drawing the utility model is described in detail:
Fig. 1 (a) is the structural representation of shear rod locking type damping support.
Work schematic representation when Fig. 1 (b) is shear rod locking type damping support horizontal sliding.
Fig. 1 (c) is the I-I sectional drawing of shear rod locking type damping support.
Fig. 1 (d) is the shear rod structural representation of shear rod locking type damping support.
Fig. 2 (a) is the structural representation of pull bar locking type damping support.
Work schematic representation when Fig. 2 (b) is pull bar locking type damping support horizontal sliding.
Fig. 2 (c) is the I-I sectional drawing of pull bar locking type damping support.
Fig. 2 (d) is the bracing structure schematic representation of pull bar locking type damping support.
In the accompanying drawings, the lamination slide plate (1) of cylinder type is stacked or replace stacked forming by the rigid material thin plate of multilayer low coefficient of friction or wear-resisting organic material thin plate, its material can be selected corrosion resistant plate or polyfluortetraethylene plate etc. for use, its total height is in 30mm～600mm scope, and the peripheral diameter of lamination slide plate (1) is in 100mm～1200mm scope.Shrouding (5), shrouding (6) and shrouding (7) up and down up and down are housed successively at the two ends up and down of lamination slide plate (1) up and down, they are to be made by steel plate or other rigid material, and with mull technique and fixed with each other with bolt (9), bolt (10), wherein the diameter of shrouding (5) is identical with the diameter of lamination slide plate (1) up and down respectively.Shrouding (6) up and down and up and down the Si Jiaochu of shrouding (7) have engineering structure attachment hole (11), be used for fixing damping support.Lamination slide plate (1) and up and down the outside of shrouding (5) be coated with rubber cover (4).At shrouding (5) up and down, the central same axis place of shrouding (6) and lamination slide plate (1) has circular hole (16) up and down, and up and down shrouding (6) the circular hole of opening (16) diameter greater than lamination slide plate (1) and up and down shrouding (5) the diameter (being 1.2～2.0 times) of the circular hole of opening (16).
Be pressed into central nucleus core body (2) in circular hole (16), central nucleus core body (2) is formed by lead pig or rubber processing, and its upper and lower end face is equal with the outer surface of shrouding (6) up and down.
Lamination slide plate (1), up and down shrouding (5) and up and down shrouding (6) around central nucleus core body (2), locate to have some circular holes (17), in the utility model, can symmetry offer 4 circular holes (17), shear rod (3) or pull bar (15) are housed in circular hole (17).
When in circular hole (17), shear rod (3) being housed, the diameter of circular hole (17) is greater than the diameter (specifically determining according to the bearing maximum horizontal displacement amount that is allowed) of shear rod (3), shear rod (3) is to be made by the solid high-strength steel pole of cylinder type light face, its upper/lower terminal need be made spherical (the spherical crown diameter is 2.0～4.0 times of shear rod (3) diameter), the spherical top of shear rod (3) is embedded in the sphere shape groove (8) that shrouding (7) up and down opened with respect to circular hole (17), and the diameter of sphere shape groove (8) is more than or equal to the domed diameter in shear rod (3) end.
Therefore, when friction slipper was worked under the geological process, if bearing horizontal sliding amount is less, central nucleus core body (2) produced shear deformation with the relative slippage between the lamination slide plate (1), and sliding deformation is evenly distributed between each lamination slide plate (1).And between lock-bit shear rod (3) and hole wall owing to there is a fixed gap, have neither part nor lot in work.When the horizontal amount of side-shift of bearing is increased to certain value (shown in Fig. 1 (b)), shear rod (3) begins participation work: promptly in the lamination slide plate (1) of bearing, the both sides to relevant shear bar (3) all produce the opposite horizontal couple of force of a pair of direction to circular hole (17) along the both sides of direction of displacement on every layer of slide plate, thereby formed the equally distributed torque of couple of short transverse along lamination slide plate (1), this torque of couple retrains and has limited the angle of yaw of shear rod (3) along direction of displacement, shear rod (3) has also limited the relative sliding displacement amount between the slide plate (1) conversely simultaneously, thereby support displacement is locked within a certain limit value, plays the safety precaution effect.In bearing horizontal sliding process, rubber surrounding layer (4) plays the close and protect effect to frictional interface, and surrounding layer (4) can not be damaged itself.In addition, when the horizontal two-dimension geological process, lock-bit shear rod (3) defines the radius of bearing horizontal distortion, thereby reduced bearing the possibility that vertical bearing capacity lost efficacy takes place because of excessive, the effective compression face of two-dimensional level displacement range is too small.
When in circular hole (17) pull bar (15) being housed, the diameter of the circular hole of being opened on the lamination slide plate (1) (17) is greater than the maximum diameter (specifically determining according to the bearing maximum horizontal displacement amount that is allowed) of pull bar (15); And up and down the circular hole (17) opened of shrouding (5) (diameter in sphere shape hole is more than or equal to the diameter of the circular hole (17) in the lamination slide plate (1) for sphere shape hole, the centre of sphere is positioned at the outer surface of shrouding (5) up and down), up and down circular hole (17) diameter opened of shrouding (6) be equal to or greater than lamination slide plate (1) the diameter of the circular hole of opening (17), the position of the corresponding circular hole of shrouding (7) (17) has cylindrical groove (18) up and down.Pull bar (15) is made up of a short steel bushing (12) and two steel bolts (13), couple together by steel bushing (12) between two high-strength bolts (13), and make Steel Rod (15) reserve certain flexible surplus, pull bar (15) two end part are hemisphere hinge (14), are connected with two high-strength bolts (13) respectively; The diameter of cylindrical groove (18) is more than or equal to the diameter of pull bar (15) end ball pivot (14), the spherical hinge of the upper/lower terminal portion of pull bar (15) (14) is placed in lamination slide plate (1) and shrouding (5) is opened up and down the circular hole (17), and its arc part and up and down the spherical pore (17) opened of shrouding (5) match.Cylindrical groove (18) and up and down the circular hole (17) opened of shrouding (6) constitute the rotation space of spherical hinge (14), the degree of depth of its cylindrical groove (18) should by do not hinder hemisphere hinge (14) freely rotates definite.
Therefore, when friction slipper was worked under the geological process, if bearing horizontal sliding amount is less, nuclear core body (2) produced shear deformation with the relative slippage between the lamination slide plate (1), and sliding deformation is evenly distributed between each lamination slide plate (1).Lock-bit pull bar (15) is owing to have certain free extending amount, and and circular hole (17) between have a fixed gap, so a deflection along with sidesway has neither part nor lot in work.When the horizontal amount of side-shift of bearing is increased to certain value (shown in Fig. 2 (b)), pull bar (15) begins participation work: promptly pull bar (15) produces oblique pulling force between the upper and lower shrouding of bearing, limited the relative sliding displacement amount between the slide plate (1), and support displacement is locked within a certain limit value, play the safety precaution effect.Therebetween, rubber surrounding layer (4) plays the close and protect effect to frictional interface, and surrounding layer (4) is not damaged itself.In addition, when the horizontal two-dimension geological process, lock-bit pull bar (15) defines the radius of bearing horizontal distortion equally, thereby reduced bearing the possibility that vertical bearing capacity lost efficacy takes place because of the two-dimensional level displacement range is excessive.
Claims (9)
1; the totally-enclosed friction energy-eliminating shock-insulating of a kind of locking type bearing; it is by lamination slide plate (1); central nucleus core body (2); rubber surrounding layer (4); bearing is shrouding (5) up and down; shrouding (6) up and down; shrouding compositions such as (7) up and down; it is characterized in that: on lamination slide plate (1); shrouding (5) up and down is equipped with at following two ends successively; shrouding (6) and shrouding (7) up and down up and down; at shrouding (5) up and down; the central same axis place of shrouding (6) and lamination slide plate (1) has circular hole (16) up and down; in circular hole (16), be provided with central nucleus core body (2); at shrouding (5) up and down; shrouding (6) and lamination slide plate (1) has some circular holes (17) around central nucleus core body (2) all around up and down; and be built-in with shear rod (3) or pull bar (15) at circular hole (17), at lamination slide plate (1) and last; the periphery of following shrouding (5) is coated with rubber cover (4).
2, the totally-enclosed friction energy-eliminating shock-insulating of locking type according to claim 1 bearing, it is characterized in that: up and down shrouding (5), up and down shrouding (6) and up and down between the shrouding (7) respectively by mull technique and being connected and fixed with bolt (9) and bolt (10), wherein up and down the diameter of shrouding (5) equals the diameter of lamination slide plate (1), shrouding (6) up and down and up and down four jiaos of shrouding (7) have engineering structure attachment hole (11).
3, the totally-enclosed friction energy-eliminating shock-insulating of locking type according to claim 1 bearing, it is characterized in that: the diameter of the circular hole of offering in the central authorities of shrouding (6) up and down (16) greater than shrouding (5) and lamination slide plate (1) up and down the diameter of the circular hole of opening (16), and at shrouding (5) up and down, the circular hole (17) that can have 4 symmetries all around around central core body (2) of shrouding (6) and lamination slide plate (1) up and down, central nucleus core body (2) is processed by lead pig or rubber material, and its upper and lower end face is equal with the outer surface of shrouding (6) up and down.
4, the totally-enclosed friction energy-eliminating shock-insulating of locking type according to claim 1 bearing, it is characterized in that: when in circular hole (17), shear rod (3) being housed, then the position of the corresponding circular hole of shrouding (7) (17) has sphere shape groove (8) up and down, and the diameter of circular hole (17) is greater than the diameter of shear rod (3).
5, the totally-enclosed friction energy-eliminating shock-insulating of locking type according to claim 1 bearing, it is characterized in that: when in circular hole (17), pull bar (15) being housed, the circular hole (17) opened of shrouding (5) is sphere shape hole up and down, the diameter in sphere shape hole is gone up the diameter of circular hole (17) more than or equal to lamination slide plate (1), the centre of sphere is positioned at the outer surface of shrouding (5) up and down, up and down shrouding (6) the diameter of the circular hole of opening (17) be equal to or greater than lamination slide plate (1) the diameter of the circular hole of opening (17), the position of the corresponding circular hole of shrouding (7) (17) has cylindrical groove (18) up and down.
6, the totally-enclosed friction energy-eliminating shock-insulating of locking type according to claim 4 bearing, it is characterized in that: shear rod (3) is to be made by the solid high-strength steel pole of cylinder type, the top of its upper/lower terminal is spherical, the diameter of sphere shape groove (8) is more than or equal to the domed diameter in shear rod (3) top, and the spherical top of shear rod (3) is embedded in the sphere shape groove (8).
7, the totally-enclosed friction energy-eliminating shock-insulating of locking type according to claim 5 bearing, it is characterized in that: pull bar (15) is made up of a steel bushing (12) and two bolts (13), couple together by steel bushing (12) between two bolts (13), pull bar (15) two end part are hemisphere hinge (14), be connected with bolt (13) respectively, the diameter of cylindrical groove (18) is more than or equal to the diameter of pull bar (15) end hemisphere hinge (14), the spherical hinges in the two end part of pull bar (15) (14) are placed in lamination slide plate (1) and shrouding (5) is opened up and down the circular hole (17), and its arc part and the sphere shape hole (17) of being opened on the shrouding (5) up and down match.
8, the totally-enclosed friction energy-eliminating shock-insulating of locking type according to claim 7 bearing is characterized in that: cylindrical groove (18) and up and down the circular hole (17) opened of shrouding (6) constitute the rotation space of hemisphere hinge (14).
9, the totally-enclosed friction energy-eliminating shock-insulating of locking type according to claim 1 bearing is characterized in that: lamination slide plate (1) is stacked or replace stacked forming by the rigid material thin plate of multilayer low coefficient of friction or wear-resisting organic material thin plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00234998 CN2435565Y (en) | 2000-05-27 | 2000-05-27 | Totally-enclosed friction damping support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00234998 CN2435565Y (en) | 2000-05-27 | 2000-05-27 | Totally-enclosed friction damping support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2435565Y true CN2435565Y (en) | 2001-06-20 |
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ID=33596924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00234998 Expired - Fee Related CN2435565Y (en) | 2000-05-27 | 2000-05-27 | Totally-enclosed friction damping support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2435565Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787752B (en) * | 2010-02-08 | 2011-07-27 | 燕山大学 | Shearing-extruding composite lead damper |
| CN103195854A (en) * | 2013-04-09 | 2013-07-10 | 中国电力工程顾问集团中南电力设计院 | Earthquake-isolation energy dissipator for ultra-high-voltage converter transformer |
| CN103195853A (en) * | 2013-04-09 | 2013-07-10 | 中国电力工程顾问集团中南电力设计院 | Earthquake-isolation limiting device for ultra-high-voltage converter transformer |
| CN104989001A (en) * | 2015-06-24 | 2015-10-21 | 上海核工程研究设计院 | Anti-pulling shearing locking device |
| CN105387113A (en) * | 2015-12-08 | 2016-03-09 | 无锡亨宇减震器科技有限公司 | Filling type rubber damping device |
| CN107268426A (en) * | 2017-05-26 | 2017-10-20 | 同济大学 | Adaptive damping properties of lead-core rubber damper |
| CN109577179A (en) * | 2018-11-28 | 2019-04-05 | 江苏科技大学 | A kind of tension shock isolating pedestal |
| CN110637125A (en) * | 2015-01-24 | 2019-12-31 | 郝苏 | Connecting device for quickly assembling structural units and simultaneously providing anti-seismic and stable combination |
| CN114277951A (en) * | 2021-12-27 | 2022-04-05 | 上海材料研究所 | Core energy dissipation structure with part of energy dissipation capable of being blown in double stages and axial steel damper |
| CN114351884A (en) * | 2021-12-27 | 2022-04-15 | 上海材料研究所 | Core energy dissipation structure and axial steel damper |
-
2000
- 2000-05-27 CN CN 00234998 patent/CN2435565Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787752B (en) * | 2010-02-08 | 2011-07-27 | 燕山大学 | Shearing-extruding composite lead damper |
| CN103195854A (en) * | 2013-04-09 | 2013-07-10 | 中国电力工程顾问集团中南电力设计院 | Earthquake-isolation energy dissipator for ultra-high-voltage converter transformer |
| CN103195853A (en) * | 2013-04-09 | 2013-07-10 | 中国电力工程顾问集团中南电力设计院 | Earthquake-isolation limiting device for ultra-high-voltage converter transformer |
| CN103195854B (en) * | 2013-04-09 | 2015-07-01 | 中国电力工程顾问集团中南电力设计院有限公司 | Earthquake-isolation energy dissipator for ultra-high-voltage converter transformer |
| CN103195853B (en) * | 2013-04-09 | 2016-05-18 | 中国电力工程顾问集团中南电力设计院有限公司 | UHV shock insulation stopping means |
| CN110637125A (en) * | 2015-01-24 | 2019-12-31 | 郝苏 | Connecting device for quickly assembling structural units and simultaneously providing anti-seismic and stable combination |
| CN104989001A (en) * | 2015-06-24 | 2015-10-21 | 上海核工程研究设计院 | Anti-pulling shearing locking device |
| CN105387113A (en) * | 2015-12-08 | 2016-03-09 | 无锡亨宇减震器科技有限公司 | Filling type rubber damping device |
| CN107268426A (en) * | 2017-05-26 | 2017-10-20 | 同济大学 | Adaptive damping properties of lead-core rubber damper |
| CN109577179A (en) * | 2018-11-28 | 2019-04-05 | 江苏科技大学 | A kind of tension shock isolating pedestal |
| CN109577179B (en) * | 2018-11-28 | 2020-11-10 | 江苏科技大学 | Tensile shock insulation support |
| CN114277951A (en) * | 2021-12-27 | 2022-04-05 | 上海材料研究所 | Core energy dissipation structure with part of energy dissipation capable of being blown in double stages and axial steel damper |
| CN114351884A (en) * | 2021-12-27 | 2022-04-15 | 上海材料研究所 | Core energy dissipation structure and axial steel damper |
| CN114277951B (en) * | 2021-12-27 | 2023-06-20 | 上海材料研究所有限公司 | Core energy consumption structure with part of fusible double-order energy consumption and axial steel damper |
| CN114351884B (en) * | 2021-12-27 | 2023-06-20 | 上海材料研究所有限公司 | Core energy dissipation structure and axial steel damper |
| WO2023125066A1 (en) * | 2021-12-27 | 2023-07-06 | 上海材料研究所有限公司 | Core energy consuming structure capable of being partially fused for dual-order energy consumption, and axial steel damper |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |