CN105545057A - Frictional-sliding-pendulum seismic isolation support with anti-lift-off function - Google Patents
Frictional-sliding-pendulum seismic isolation support with anti-lift-off function Download PDFInfo
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- CN105545057A CN105545057A CN201610054763.3A CN201610054763A CN105545057A CN 105545057 A CN105545057 A CN 105545057A CN 201610054763 A CN201610054763 A CN 201610054763A CN 105545057 A CN105545057 A CN 105545057A
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- Prior art keywords
- lift
- sliding
- undersetting
- slipping block
- plate
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
Abstract
The invention discloses a frictional-sliding-pendulum seismic isolation support with the anti-lift-off function. The frictional-sliding-pendulum seismic isolation support comprises a lower support body with a sliding groove and a lower sliding block arranged in the sliding groove of the lower support body, wherein the lower sliding block is connected with an upper sliding block through a sliding beam, the upper sliding block is connected with an anti-lift-off sliding base, an anti-lift-off plate is arranged between the lower support body and the anti-lift-off sliding base, and the sliding beam is connected with a force transmitting frame. Damping energy dissipation in the horizontal direction is added, and the suppressing anti-capsizing-moment function, namely, the lift-off function is added. When vertical force appears in motive amplitude force or the capsizing moment appears in a building, an anti-lift-off plate spring set solidified to a foundation generates suppressing resistance to stop and absorb damaging factors generated by the vertical seismic force and the capsizing moment. The frictional-sliding-pendulum seismic isolation support is large in vertical tensile force and high in seismic isolation effect, the part lift-off problem, caused by the capsizing moment, of high-rise buildings is solved, and the frictional-sliding-pendulum seismic isolation support can be effectively applied to the high-rise buildings. The frictional-sliding-pendulum seismic isolation support is simple in structure, convenient to process and low in cost.
Description
Technical field
The present invention relates to a kind of architectural vibration-insulation bearing, especially relate to a kind of frictional slip pendulum shock isolating pedestal with anti-lift-off function, belong to building unit technical field.
Background technology
Base Isolation Technology is by top-out and base isolation with the isolated component of horizontal force very " soft ", because the rigidity of Seismic Isolation of Isolation Layer is very little, when an earthquake occurs, Seismic Isolation of Isolation Layer will play " every " effect, bear seismic displacement movement, and superstructure only does approximate translation.
In base isolation, frictional slip pendulum shock isolating pedestal is than being widely used at present and the more premium properties of the more ripe neoprene bearing of technology tool in load, weather-proof, fire prevention and material aging.But there is bearing nonreactive lift-off function own simultaneously, be greatly limited in the application of highrise building.One of existing vibration-isolating system problem demanding prompt solution is: how to develop the shock isolating pedestal that can bear powerful vertical tension.Exploitation has the remarkably productive shock isolation system of vertical earthquake isolating, to solve the local lift-off problem that highrise building overturning moment causes.
Be in " vertically pulling-resistant type friction pendulum support " of 200710099429.0 in the patent No., I be bearing, II be slipping block, III is balance base; Have two crucial pendulum in basic model, first is I and II large ball arc pendulum formed and slippage pendulum, and be the core of sliding and shock isolation, function is by displacement and friction energy dissipation; Second is the II and III bead arc pendulum formed and balance wheel, and function ensures building maintenance level in large slippage pendulum process.Every frictional slip pendulum bearing will possess this two functions, but after this patent increases resistance to plucking function in basic model, the second function has received and limited significantly.
Be in " the SMA-friction pendulum gap compounded shock isolating abutment " of 201510135173.9 at application number, basic type increases memory alloy wire 5, utilize its high resiliency to complete reset and anti-lift-off function.The patent No. is be arrange high rigid spring 8(extension spring in pedestal corner in " pulling-resistant type triple-friction swinging type shock insulation support " of 201020673066.4), complete reset and anti-lift-off function with its pulling force, but all there is the problems such as pulling force is little.
Therefore, be necessary to develop the remarkably productive shock isolating pedestal of vertical earthquake isolating.
Summary of the invention
In order to problems such as the vertical tension overcoming prior art are little, isolating affection is not enough, the invention provides a kind of frictional slip pendulum shock isolating pedestal with anti-lift-off function, to solve the local lift-off problem that highrise building overturning moment causes.
The present invention is realized by following technical proposal: a kind of frictional slip pendulum shock isolating pedestal with anti-lift-off function, comprise the undersetting of band chute, be arranged on the lower slipping block in undersetting chute, it is characterized in that: described lower slipping block is connected with upper slipping block by slippage beam, upper slipping block is connected with anti-lift-off slide, between undersetting and anti-lift-off slide, arrange anti-lift-off plate, slippage beam is connected with force transmission rack, to be fixed on by this bearing between surface structures basis and building pillar.
Described slippage beam comprises center pillar, the several horizontal beams be connected with center pillar, the disk between each horizontal beam is run through centered by center pillar, the upper and lower end of center pillar is respectively equipped with hemispheric upper and lower groove, the upper bulb of hemispheric low groove and lower slipping block is matched, and the lower bulb of hemispheric upper groove and upper slipping block is matched.
The upper end of described upper slipping block is set to the first arc-shaped concave, and the first arc convex of this first arc-shaped concave and anti-lift-off slide lower end is matched; The lower end of described lower slipping block is set to the second arc convex, and the arc chute of this second arc convex and undersetting upper end is matched.
Described force transmission rack comprises that top center place is connected, bottom separately and outwards again to several legs of downward-extension, above connected center, be connected with flange, be connected with building pillar by this flange.
The horizontal beam of described slippage beam at least arranges two, and horizontal beam outer end is provided with through hole; The leg of described force transmission rack at least establishes two, is provided with through hole, arranges bolt in through hole bottom leg, leg lower end is fixed on corresponding horizontal beam outer end by bolt and nut; The leg quantity of described force transmission rack and the horizontal beam quantity of slippage beam adapt.
The upper end of described anti-lift-off plate is connected with anti-lift-off slide, lower end is connected with undersetting; Anti-lift-off plate and undersetting junction arrange damping sheet.
Described anti-lift-off plate is formed by stacking by multi-layer spring steel band, its two ends all by bolt and nut respectively with anti-lift-off slide and undersetting bolt.
Described damping sheet comprises the main body be overlapped into by multi-layer spring steel band, the lower end of this main body is fixed on the top of anti-lift-off plate and undersetting junction, upper end is connected with buffering connector, the horizontal socket connector of an end band, another end band groove of buffering connector, horizontal socket connector, by cushion block and the grafting of main body upper end, is provided with buffering blob of viscose in groove.
The bottom of described leg is provided with the flange in strap bolt hole.
When the leg of described force transmission rack is two, the quantity correspondence of anti-lift-off plate and damping sheet is set to the multiple of two; When the leg of force transmission rack is three, the quantity correspondence of anti-lift-off plate and damping sheet is set to the multiple of three; When the leg of force transmission rack is four, the quantity correspondence of anti-lift-off plate and damping sheet is set to the multiple of four.
During installation, multiple shock isolating pedestal is arranged between ground and building pillar, is fixedly connected with by undersetting by stone bolt with ground, is connected by the flange at force transmission rack top center place by bolt group IV with building pillar.After installation before slippage, lower slipping block and anti-lift-off ball rail chair have horizontal sliding stroke value C, have resistance vibration clearance D between slippage beam disk and buffering blob of viscose.
Shock insulation function is achieved in that when an earthquake occurs, as Fig. 1, produce former dynamic amplitude of vibration power F1 with former dynamic group (comprising undersetting, anti-lift-off plate spring groups, anti-lift-off ball rail chair and damping sheet groups of springs) that ground base is solidified as a whole, and secondary dynamic group (comprising lower slipping block, slippage beam, upper slipping block, force transmission rack and building post) produces inertia resistance.When F1 is greater than inertia resistance, produce relative displacement and horizontal sliding stroke value C between former dynamic group and secondary dynamic group and energy dissipating; When displacement makes the resistance vibration clearance D between slippage beam and buffering blob of viscose be 0, damping sheet groups of springs plays damping action energy dissipating again.When occurring in former dynamic amplitude of vibration power F1 that vertical force or building have overturning moment, the anti-lift-off plate spring groups be cemented on basis produces suppresses drag, stops and absorb the destructive factor of vertical brisance and overturning moment generation.
Equilibrium function is achieved in that to turn left in the former dynamic group of former dynamic amplitude of vibration power F1 direction of generation of hypothesis Fig. 1, relative displacement is that the horizontal sliding stroke value C on the right of Fig. 1 reduces, slippage beam in secondary dynamic group and above whole element run to the right along parallel double sphere rail, operating lower slipping block micro-pendulum and upper slipping block micro-pendulum left to the right under heavy load, the level in so just maintaining time dynamic group under inertia.Assuming that shock isolating pedestal only has one, say for certain, building is after the inertia of static state is broken, as shown in Figure 1 secondary dynamic group just as the canoe in water be pendulous, but because the quantity of frictional slip pendulum shock isolating pedestal has tens or even tens in building, so just ensure building basic translation under level in shock insulation process.
The invention has the beneficial effects as follows: the present invention, relative to prior art, adds the damping dissipation energy of horizontal direction, add and suppress resistance to tipping moment and lift-off function.When occurring in former dynamic amplitude of vibration power that vertical force or building have overturning moment, the anti-lift-off plate spring groups be cemented on basis produces suppresses drag, stops and absorb the destructive factor of vertical brisance and overturning moment generation.Vertical tension of the present invention is large, isolating affection strong, solves the local lift-off problem that highrise building overturning moment causes, and this frictional slip pendulum shock isolating pedestal energy efficient application is in highrise building.Structure of the present invention is simple, and easy to process, cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention, is also A-A sectional view in Fig. 2;
When Fig. 2 is horizontal beam, leg quantity is 4, B-B sectional structure schematic diagram in Fig. 1;
Fig. 3 is damping sheet structural representation;
When Fig. 4 is horizontal beam, leg quantity is 2, B-B sectional structure schematic diagram in Fig. 1;
When Fig. 5 is horizontal beam, leg quantity is 3, B-B sectional structure schematic diagram in Fig. 1.
Wherein: 1-stone bolt, 2-undersetting, the upper bulb of slipping block under 3-, slipping block under 4-, the upper slippage beam of 5-, the lower bulb of the upper slipping block of 6-, the arc chute of 7-undersetting upper end, first arc convex of 8-anti-lift-off slide 15 lower end, 9-horizontal beam, flange bottom 10-leg, 11-leg, the flange at 12-leg top, 13-builds pillar, the upper slipping block of 14-, the anti-lift-off slide of 15-, 16-disk, 17-cushions connector, the anti-lift-off plate of 18-, 19-damping sheet, 20-cushion block, 21-cushions blob of viscose, C-horizontal sliding stroke value, D-resistance vibration gap, the former dynamic amplitude of vibration power of F1-.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention will be further described.
As shown in the figure, the frictional slip pendulum shock isolating pedestal with anti-lift-off function comprises: the undersetting 2 being fixed on the band chute in ground base by stone bolt 1, be arranged on the lower slipping block 4 in undersetting 2 chute, described lower slipping block 4 is connected with upper slipping block 14 by slippage beam 5, upper slipping block 14 is connected with anti-lift-off slide 15, between undersetting 2 and anti-lift-off slide 15, anti-lift-off plate 18 is set, slippage beam 5 is connected with force transmission rack, force transmission rack is connected with building pillar 13, to be formed fixing between surface structures basis and building pillar 13.
Described slippage beam 5 comprises center pillar, the several horizontal beams 9 be connected with center pillar, the disk 16 between each horizontal beam 9 is run through centered by center pillar, the upper and lower end of center pillar is respectively equipped with hemispheric upper and lower groove, the upper bulb 3 of hemispheric low groove and lower slipping block 4 is matched, and the lower bulb 6 of hemispheric upper groove and upper slipping block 14 is matched.The upper end of described upper slipping block 14 is set to the first arc-shaped concave, and the first arc convex 8 of this first arc-shaped concave and anti-lift-off slide 15 lower end is matched; The lower end of described lower slipping block 4 is set to the second arc convex, and the arc chute 7 of this second arc convex and undersetting 2 upper end is matched.Described force transmission rack comprises that top center place is connected, bottom separately and outwards again to several legs 11 of downward-extension, above the center be connected, be connected with flange 12, be connected with building pillar 13 by this flange 12.The horizontal beam 9 of described slippage beam 5 at least arranges two, and horizontal beam 9 outer end is provided with through hole; The leg 11 of described force transmission rack at least establishes two, is provided with through hole, arranges bolt in through hole bottom leg 11, leg 11 lower end is fixed on corresponding horizontal beam 9 outer end by bolt and nut; Leg 11 quantity of described force transmission rack and horizontal beam 9 quantity of slippage beam 5 adapt; The bottom of described leg 11 is provided with the flange 10 in strap bolt hole.The upper end of described anti-lift-off plate 18 is connected with anti-lift-off slide 15 by bolt, and lower end is connected with undersetting 2 by bolt; Anti-lift-off plate 18 arranges damping sheet 19 with undersetting 2 junction.Described anti-lift-off plate 18 forms by multi-layer spring steel band is superimposed, and its upper/lower terminal is respectively provided with connecting hole, all by bolt and nut respectively with anti-lift-off slide 15 and undersetting 2 bolt.Described damping sheet 19 comprises the main body be overlapped into by multi-layer spring steel band, the lower end of this main body is fixed on the top of anti-lift-off plate 18 and undersetting 2 junction by bolt and nut, upper end is connected with and cushions connector 17, the horizontal socket connector of right-hand member band of this buffering connector 17, another end band groove, horizontal socket connector is by cushion block 20 and the grafting of main body upper end, and be bolted, in groove, sunk screw is provided with buffering blob of viscose 21.
As Fig. 4, when leg 11, horizontal beam quantity are two, the quantity correspondence of anti-lift-off plate 18 and damping sheet 19 is set to the multiple of two; As Fig. 5, when leg 11, horizontal beam quantity are three, the quantity correspondence of anti-lift-off plate spring groups 18 and damping sheet 19 is set to the multiple of three.As Fig. 2, when leg 11, horizontal beam quantity are four, the quantity correspondence of anti-lift-off plate spring groups 18 and damping sheet 19 is set to the multiple of four.
During installation, multiple shock isolating pedestal is arranged between surface structures basis and building pillar 13, the installation of each shock isolating pedestal is specifically: be fixedly connected with surface structures basis by stone bolt 1 by undersetting 2, is connected by the flange 12 at force transmission rack leg 11 top center place by bolt group with building pillar 13.After installation before slippage, lower slipping block 4 and anti-lift-off slide 15 have horizontal sliding stroke value C, have resistance vibration clearance D between slippage beam 5 disk 16 and buffering blob of viscose 21.
Shock insulation function is achieved in that when an earthquake occurs, as Fig. 1, produce former dynamic amplitude of vibration power F1 with former dynamic group (comprising undersetting 2, anti-lift-off plate 18 groups, anti-lift-off slide 15 and damping sheet 19 groups) that surface structures basis is solidified as a whole, and secondary dynamic group (comprising lower slipping block 4, slippage beam 5, upper slipping block 14, force transmission rack and building pillar 13) produces inertia resistance.When F1 is greater than inertia resistance, produce relative displacement and horizontal sliding stroke value C between former dynamic group and secondary dynamic group and energy dissipating; When displacement makes the resistance vibration clearance D between slippage beam 5 and buffering blob of viscose 21 be 0, damping sheet 19 groups plays damping action energy dissipating again.When occurring in former dynamic amplitude of vibration power F1 that vertical force or building have overturning moment, drag is suppressed in the anti-lift-off plate 18 groups generation be cemented on surface structures basis, stops and absorb the destructive factor of vertical brisance and overturning moment generation.
Equilibrium function is achieved in that to turn left in the former dynamic group of former dynamic amplitude of vibration power F1 direction of generation of hypothesis Fig. 1, relative displacement is that the horizontal sliding stroke value C on the right of Fig. 1 reduces, slippage beam 5 in secondary dynamic group and above all parts run to the right along parallel arc convex 8, arc chute 7, operating lower slipping block 4 micro-pendulum and upper slipping block 14 micro-pendulum left to the right under heavy load, the level in so just maintaining time dynamic group under inertia.Assuming that shock isolating pedestal only has one, say for certain, building is after the inertia of static state is broken, as shown in Figure 1 secondary dynamic group just as the canoe in water be pendulous, but because the quantity of frictional slip pendulum shock isolating pedestal has tens or even tens in building, so just ensure building basic translation under level in shock insulation process.
Claims (10)
1. one kind has the frictional slip pendulum shock isolating pedestal of anti-lift-off function, comprise the undersetting of band chute, be arranged on the lower slipping block in undersetting chute, it is characterized in that: described lower slipping block is connected with upper slipping block by slippage beam, upper slipping block is connected with anti-lift-off slide, between undersetting and anti-lift-off slide, arrange anti-lift-off plate, slippage beam is connected with force transmission rack.
2. frictional slip pendulum shock isolating pedestal according to claim 1, it is characterized in that: described slippage beam comprises center pillar, the several horizontal beams be connected with center pillar, the disk between each horizontal beam is run through centered by center pillar, the upper and lower end of center pillar is respectively equipped with hemispheric upper and lower groove, the upper bulb of hemispheric low groove and lower slipping block is matched, and the lower bulb of hemispheric upper groove and upper slipping block is matched.
3. frictional slip pendulum shock isolating pedestal according to claim 1, it is characterized in that: the upper end of described upper slipping block is set to the first arc-shaped concave, the first arc convex of this first arc-shaped concave and anti-lift-off slide lower end is matched; The lower end of described lower slipping block is set to the second arc convex, and the arc chute of this second arc convex and undersetting upper end is matched.
4. frictional slip pendulum shock isolating pedestal according to claim 1, it is characterized in that: described force transmission rack comprises that top center place is connected, bottom is separately and outwards again to several legs of downward-extension, be connected with flange above the center be connected, be connected with building pillar by this flange.
5. frictional slip pendulum shock isolating pedestal according to claim 1, is characterized in that: the horizontal beam of described slippage beam at least arranges two, and horizontal beam outer end is provided with through hole; The leg of described force transmission rack at least establishes two, is provided with through hole bottom leg; The leg quantity of described force transmission rack and the horizontal beam quantity of slippage beam adapt.
6. frictional slip pendulum shock isolating pedestal according to claim 1, is characterized in that: the upper end of described anti-lift-off plate is connected with anti-lift-off slide, lower end is connected with undersetting; Anti-lift-off plate and undersetting junction arrange damping sheet.
7. frictional slip pendulum shock isolating pedestal according to claim 1, it is characterized in that: described anti-lift-off plate is formed by stacking by multi-layer spring steel band, the upper/lower terminal of anti-lift-off plate is connected with undersetting with anti-lift-off slide respectively.
8. frictional slip pendulum shock isolating pedestal according to claim 5, is characterized in that: the bottom of described leg is provided with the flange in strap bolt hole.
9. frictional slip pendulum shock isolating pedestal according to claim 6, it is characterized in that: described damping sheet comprises the main body be overlapped into by multi-layer spring steel band, the lower end of this main body is fixed on the top of anti-lift-off plate and undersetting junction, upper end is connected with buffering connector, the horizontal socket connector of an end band, another end band groove of buffering connector, horizontal socket connector and the grafting of main body upper end, be provided with buffering blob of viscose in groove.
10. frictional slip pendulum shock isolating pedestal according to claim 6, is characterized in that: when the leg of described force transmission rack is two, and the quantity correspondence of anti-lift-off plate and damping sheet is set to the multiple of two; When the leg of force transmission rack is three, the quantity correspondence of anti-lift-off plate and damping sheet is set to the multiple of three; When the leg of force transmission rack is four, the quantity correspondence of anti-lift-off plate and damping sheet is set to the multiple of four.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610054763.3A CN105545057B (en) | 2016-01-27 | 2016-01-27 | Frictional slip pendulum shock isolating pedestal with anti-lift-off function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610054763.3A CN105545057B (en) | 2016-01-27 | 2016-01-27 | Frictional slip pendulum shock isolating pedestal with anti-lift-off function |
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| CN105545057B CN105545057B (en) | 2017-12-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110397175A (en) * | 2019-07-02 | 2019-11-01 | 广州大学 | A kind of SMA negative stiffness damping device |
| CN110670935A (en) * | 2019-09-18 | 2020-01-10 | 上海宝冶冶金工程有限公司 | Damage controllable energy dissipater |
| CN114809313A (en) * | 2022-05-18 | 2022-07-29 | 丰泽智能装备股份有限公司 | Anti-drawing guide rail type friction pendulum support |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| CN110397175A (en) * | 2019-07-02 | 2019-11-01 | 广州大学 | A kind of SMA negative stiffness damping device |
| CN110670935A (en) * | 2019-09-18 | 2020-01-10 | 上海宝冶冶金工程有限公司 | Damage controllable energy dissipater |
| CN114809313A (en) * | 2022-05-18 | 2022-07-29 | 丰泽智能装备股份有限公司 | Anti-drawing guide rail type friction pendulum support |
| CN114809313B (en) * | 2022-05-18 | 2022-11-18 | 丰泽智能装备股份有限公司 | Anti-drawing guide rail type friction pendulum support |
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| CN105545057B (en) | 2017-12-15 |
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