CN201567693U - Translational type frication swing shock insulation support - Google Patents
Translational type frication swing shock insulation support Download PDFInfo
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- CN201567693U CN201567693U CN200920099370XU CN200920099370U CN201567693U CN 201567693 U CN201567693 U CN 201567693U CN 200920099370X U CN200920099370X U CN 200920099370XU CN 200920099370 U CN200920099370 U CN 200920099370U CN 201567693 U CN201567693 U CN 201567693U
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- polytetrafluoroethylene
- convex surface
- insulation support
- top deck
- earthquake
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Abstract
The utility model relates to a translational type frication swing shock insulation support. Obviously, obtained earthquake records show that each earthquake record has specific advantage frequency thereof, namely, rich energy is available in some frequencies. Common non-shock insulation multi-layer buildings have high rigidity and short period, the basic period is rightly on the frequency band with the maximum earthquake output energy, and thereby corresponding acceleration reactions are much bigger than ground movements. If frequencies with structure movements miss the advantage frequencies with rich energy, and structure earthquake response can be reduced. The composition of the product comprises a cylindrical steel base 4, wherein the upper portion of the cylindrical steel base 4 extends into a polytetrafluoroethylene hollow round bar 5, the upper surface of the polytetrafluoroethylene hollow round bar 5 is a concave spherical surface, the concave spherical surface is provided with a semi-ball shaped convex surface sliding joint 6, the semi-ball shaped convex surface sliding joint 6 is contacted with an upper bearing plate 9 through a polytetrafluoroethylene thin plate 7, the contact surface between the polytetrafluoroethylene thin plate 7 and the upper bearing plate 9 is a smooth spherical surface, the edge of the smooth spherical surface is welded with a ring-shaped limiting device 8, the upper bearing plate 9 is connected with an upper bearing table beam 10 through an upper embedded steel bar 11, the cylindrical steel base 4 is fixed on a lower bearing table plate 3, the lower bearing table plate 3 is connected with the lower bearing table beam 2 through a lower embedded steel bar 1. The translational type frication swing shock insulation support can be used to resist strong earth vibration which may happen in the future.
Description
Technical field:
The present invention relates to a kind of translation type friction-pendulum shock-insulation support.
Background technology:
From the seismographic record obtained as can be seen, because earthquake mechanism, different apart from distance and place soil layer property, each seismographic record all has its specific dominant frequency, promptly has abundant energy on some frequency.The rigidity of common non-shock insulation tier building is big, the cycle short, and its basic cycle is just in time imported on the frequency range of energy maximum in earthquake, so the relevant acceleration reaction is more much bigger than ground motion.If make the frequency of structure motion miss the abundant dominant frequency of these energy contents, just can reduce the seismic response of structure.The cardinal principle of friction isolation energy dissipation is that works itself and ground are isolated, and utilizes the vibration period of the design cycle extending structure thing of slide plane, to reduce the enlarge-effect of works because of caused by geological process significantly.
In addition, also can utilize the friction between slide plane and the slide block to reach a large amount of earthquake energy, reduce the purpose of seismic forces input.In various shock isolation systems, the method for friction shock insulation also is most economical, and building technology is also uncomplicated, and after the friction factor on basis was determined, the parameter of shock insulation is also just basic to have been determined.
Summary of the invention:
The purpose of this invention is to provide a kind of translation type friction-pendulum shock-insulation support.
Above-mentioned purpose realizes by following technical scheme:
A kind of translation type friction-pendulum shock-insulation support, its composition comprises: be fixed on down the cylindrical steel base on the apron piece, described cylindrical steel base top extend in the hollow round bar of polytetrafluoroethylene (PTFE) spill sphere, the built-in semicircle ball-type of described spill sphere convex surface arthrodia, described semicircle ball-type convex surface arthrodia contacts with top deck by the polytetrafluoroethylene (PTFE) thin plate, and described top deck links to each other with last apron piece.
Further, described friction-pendulum shock-insulation support top deck bottom is a smooth sphere, the radius of the hollow round bar of described polytetrafluoroethylene (PTFE) spill sphere is consistent with semicircle ball-type convex surface arthrodia, arthrodial convex surface diameter of semicircle ball-type convex surface and consistent top deck smooth sphere unanimity, but the convex spherical chord length is less than the chord length of top deck.
Translation type friction-pendulum shock-insulation support, its composition comprises: 1, top deck, 2, the polytetrafluoroethylene (PTFE) bed course, 3, a seat body.Seat body is made up of cylindrical steel base and the hollow round bar of polytetrafluoroethylene (PTFE) spill sphere and semicircle ball-type convex surface arthrodia.Described the built-in semicircle ball-type of seat body spill sphere convex surface arthrodia, semicircle ball-type convex surface arthrodia contacts with top deck by the polytetrafluoroethylene (PTFE) bed course, be fixed with embedded bar on the described top deck, be provided with bottom deck below described the seat body, be welded with down embedded bar under the described bottom deck.
This technical scheme has following beneficial effect:
, translation type friction-pendulum shock-insulation support be arranged on building the bottom and the basis end face between, separate on the basis in making superstructure and being cemented in ground, the natural vibration period of extending structure.If the damping of building is constant, then acceleration response is greatly diminished, thereby reduces the earthquake response of structure, hinder seismic wave to the top structure-borne, reduce or eliminated the damage of structural element, guaranteed the safety of building better, reach the purpose of structure " no collapsing with strong earthquake ".
Therefore the present invention can be used for resisting following contingent vibrations consumingly.
The slide plane of 2, translation type friction-pendulum shock-insulation support device is a sphere, and dead load and vertical geological process are born by steel support.Translation type friction-pendulum shock-insulation support device bottom and ground are fixed.When earthquake arrived, the horizontal movement meeting on ground impelled arthrodia horizontal slip in its arc surface, thereby forces superstructure slightly to be raised.Then, slide block can return to original equilbrium position again under the self gravitation effect.Therefore the distinctive circular sliding surface of translation type friction-pendulum shock-insulation support has from limit, from reset function and good stability of vibration it, need not to set up damping to concentric mechanism, make it more easy in actual applications, increase the reliability of earthquake isolating equipment, have isolating affection preferably.Prop up the built-in semicircle ball-type convex surface arthrodia of spill sphere of seat body, can fit and make the end face of top deck when slideway slides, to keep level with the top deck slide plane fully at it.Slide plane with between all be that face contacts, can be in sliding process by the friction dissipation energy.Arthrodia also adopts the polytetrafluoroethylene (PTFE) friction material, has reduced friction factor.
3, translation type friction-pendulum shock-insulation support device construction is simple, not influenced by superstructure weight, so the present invention is not particularly limited the form of structure and the number of plies, but following applicable elements is arranged:
(1) more complete apron piece is arranged.
(2) superstructure structure connection (as collar tie beam, constructional column etc.) is more
Description of drawings: accompanying drawing 1 is the structural representation of this product.Description of reference numerals is as follows:
1---following embedded bar; 2---following apron piece; 3---following bearing sheet; 4---the cylindrical steel base; 5---the hollow round bar of polytetrafluoroethylene (PTFE); 6---semicircle ball-type convex surface arthrodia; 7---the polytetrafluoroethylene (PTFE) thin plate; 8---the annular stop device; 9---top deck; 10---go up apron piece; 11---go up embedded bar
The specific embodiment:
Embodiment 1:
Translation type friction-pendulum shock-insulation support, its composition comprises, cylindrical steel base 4, cylindrical steel base 4 tops extend in the hollow round bar 5 of polytetrafluoroethylene (PTFE) concave surface, the upper surface of the hollow round bar 5 of polytetrafluoroethylene (PTFE) is the spill sphere, the built-in semicircle ball-type of spill sphere convex surface arthrodia 6, and convex surface arthrodia 6 contacts with top deck 9 by polytetrafluoroethylene (PTFE) thin plate 7, cylindrical steel base 4 is fixed on down on the bearing sheet 3, and embedded bar 1 linked to each other with following apron piece 2 under following bearing sheet 3 passed through.
Embodiment 2:
Above-mentioned translation type friction-pendulum shock-insulation support, described top deck 9 soffits are smooth sphere, described top deck 9 links to each other with last apron piece 10 by last embedded bar 11, when a seat body (cylindrical steel base 4, the hollow round bar 5 of polytetrafluoroethylene (PTFE) concave surface, semicircle ball-type convex surface arthrodia 6) after the sphere of the relative top deck 9 of end face slides, the gravity of superstructure provides a restoring force of getting back to former balance position can for the top cap, convex spherical 6 radiuses of described polytetrafluoroethylene (PTFE) semicircle ball-type convex surface arthrodia 6 are consistent with top deck 9 smooth spheres, but the convex spherical chord length will be controlled at 1/3～1/4 of top deck chord length.
The course of work is described:
Above-mentioned translation type friction-pendulum shock-insulation support for newly constructed house, will consider that bearing respectively needs one deck apron piece up and down when design, guarantee that each becomes whole to the bearing layer up and down.
In the middle of when shake takes place doughtily, the horizontal rigidity of earthquake isolating equipment is less, frictional force between hollow round bar 5 of polytetrafluoroethylene (PTFE) and the polytetrafluoroethylene (PTFE) thin plate 7 is very little, structure is the occurred level Flexible Sliding about this layer, the antidetonation system of " rigidity " the is become isolation structure system of " flexibility ", prolong (T=2～4s) for example its natural vibration period greatly, away from (Ts=0.2～1.2s) and the place eigenperiod (Tg=0.2～1.0s) natural vibration period of superstructure, thereby ground vibration is separated effectively, reduce the earthquake response of superstructure significantly; Polytetrafluoroethylene (PTFE) semicircle ball-type convex surface arthrodia 6 is fitted fully with top deck 9 smooth sphere slideways and is made superstructure remain level when earthquake, has overcome the shortcoming that general friction-pendulum shock-insulation support can not reset when violent earthquake fully.
The effect of friction-pendulum shock-insulation support is: the total weight of support of buildings on the one hand, can prolong the natural vibration period of building on the other hand, and the fundamental frequency of structure is in outside the high-energy seismic frequency scope, thereby can reduces the earthquake response of building effectively.Friction-pendulum shock-insulation support not only can not be lost its supporting capacity when support of buildings, but also wants to bear the big displacement between basis and the superstructure.
For have housing, when carrying out the antidetonation transformation, should implement as follows:
(1) security protection:, guarantee the safety during the damaged housing construction at carrying out necessary support, protection with the dangerous situation that occurs is whole or local to the house behind the house foundation periphery backfill excavation;
(2) excavation: in light of the circumstances, formulate the position that needs jacking, and determine the scope and the degree of depth of excavation of foundation pit in view of the above.The purpose of excavation is to create working space for cutting apart basis and ground;
(3) cut off: the stake in absolute altitude place, cushion cap bottom surface cuts off scope of design, and otch roughly flattened.Cut-out is from inside to outside in proper order, and underpins as temporary load(ing) with sleeper;
(4) jacking: according to engineering design, the air cushion jack of design quantity is filled in stake top after the cut-out, air cushion is inflated to a little higher than design height, underpins with sleeper, and the air cushion venting is removed, and on the stake top shock isolating pedestal is installed;
(5) basis protection: otch is used the steel strengthening member up and down, and with the high fluidity pea gravel concreten otch is sealed;
(6) basic earthwork backfill, compacting;
(7) superstructure trimming, body of wall adopt ferro-cement to reinforce.
Claims (2)
1. translation type friction-pendulum shock-insulation support, its composition comprises: be fixed on down the cylindrical steel base on the apron piece, described cylindrical steel base top extend in the hollow round bar of polytetrafluoroethylene (PTFE) spill sphere, the built-in semicircle ball-type of described spill sphere convex surface arthrodia, described semicircle ball-type convex surface arthrodia contacts with top deck by the polytetrafluoroethylene (PTFE) thin plate, and described top deck links to each other with last apron piece.
2. according to claim 1 described translation type friction-pendulum shock-insulation support, it is characterized in that: described top deck bottom is a smooth sphere, the radius of the hollow round bar of described polytetrafluoroethylene (PTFE) spill sphere is consistent with semicircle ball-type convex surface arthrodia, arthrodial convex surface diameter of semicircle ball-type convex surface and consistent top deck smooth sphere unanimity, but the convex spherical chord length is less than the chord length of top deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920099370XU CN201567693U (en) | 2009-03-24 | 2009-03-24 | Translational type frication swing shock insulation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920099370XU CN201567693U (en) | 2009-03-24 | 2009-03-24 | Translational type frication swing shock insulation support |
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| CN201567693U true CN201567693U (en) | 2010-09-01 |
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| CN200920099370XU Expired - Fee Related CN201567693U (en) | 2009-03-24 | 2009-03-24 | Translational type frication swing shock insulation support |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912071A (en) * | 2014-04-23 | 2014-07-09 | 华南理工大学建筑设计研究院 | Controllable stiffness shock insulation support using negative stiffness of gravity |
| CN106013489A (en) * | 2016-06-04 | 2016-10-12 | 上海大学 | Additional damping multidirectional negative stiffness device |
| CN108457177A (en) * | 2018-05-25 | 2018-08-28 | 辽宁工业大学 | Fixed point with runback bit function reverses damping supporting seat |
| CN108457516A (en) * | 2018-05-25 | 2018-08-28 | 辽宁工业大学 | Six cylindrical rubber sliding pendulum damping base Viscous fluid dampers |
| CN109235659A (en) * | 2018-10-23 | 2019-01-18 | 北京市建筑设计研究院有限公司 | A kind of band can lift-off device friction-pendulum shock-insulation support and its construction method |
-
2009
- 2009-03-24 CN CN200920099370XU patent/CN201567693U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912071A (en) * | 2014-04-23 | 2014-07-09 | 华南理工大学建筑设计研究院 | Controllable stiffness shock insulation support using negative stiffness of gravity |
| WO2015161587A1 (en) * | 2014-04-23 | 2015-10-29 | 舒宣武 | Rigidity-controllable seismic-isolation support utilizing gravitational negative rigidity |
| CN103912071B (en) * | 2014-04-23 | 2016-03-02 | 华南理工大学建筑设计研究院 | A kind of rigidity controllable shock isolating pedestal utilizing gravity negative stiffness |
| US20170044763A1 (en) * | 2014-04-23 | 2017-02-16 | Architectural Design & Research Institute Of South China University of Technology | Rigidity-controllable seismic-isolation support utilizing gravitational negative rigidity |
| JP2017514048A (en) * | 2014-04-23 | 2017-06-01 | 華南理工大学建築設計研究院Ａｒｃｈｉｔｅｃｔｕｒａｌ Ｄｅｓｉｇｎ ＆ Ｒｅｓｅａｒｃｈ Ｉｎｓｔｉｔｕｔｅ Ｏｆ Ｓｏｕｔｈ Ｃｈｉｎａ Ｕｎｉｖｅｒｓｉｔｙ Ｏｆ Ｔｅｃｈｎｏｌｏｇｙ | Seismic isolation support with gravity control using gravity negative stiffness |
| US9879417B2 (en) * | 2014-04-23 | 2018-01-30 | Architectural Design & Research Insitute Of South China University Of Technology | Rigidity-controllable seismic-isolation support utilizing gravitational negative rigidity |
| CN106013489A (en) * | 2016-06-04 | 2016-10-12 | 上海大学 | Additional damping multidirectional negative stiffness device |
| CN108457177A (en) * | 2018-05-25 | 2018-08-28 | 辽宁工业大学 | Fixed point with runback bit function reverses damping supporting seat |
| CN108457516A (en) * | 2018-05-25 | 2018-08-28 | 辽宁工业大学 | Six cylindrical rubber sliding pendulum damping base Viscous fluid dampers |
| CN108457516B (en) * | 2018-05-25 | 2024-01-23 | 辽宁工业大学 | Six-cylinder rubber sliding pendulum damping base viscous damper |
| CN109235659A (en) * | 2018-10-23 | 2019-01-18 | 北京市建筑设计研究院有限公司 | A kind of band can lift-off device friction-pendulum shock-insulation support and its construction method |
| CN109235659B (en) * | 2018-10-23 | 2023-06-13 | 北京市建筑设计研究院有限公司 | Friction pendulum vibration isolation support with lifting device and construction method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20120324 |