CN105545057B - Frictional slip pendulum shock isolating pedestal with anti-lift-off function - Google Patents

Frictional slip pendulum shock isolating pedestal with anti-lift-off function Download PDF

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Publication number
CN105545057B
CN105545057B CN201610054763.3A CN201610054763A CN105545057B CN 105545057 B CN105545057 B CN 105545057B CN 201610054763 A CN201610054763 A CN 201610054763A CN 105545057 B CN105545057 B CN 105545057B
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lift
slipping block
undersetting
plate
leg
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CN105545057A (en
Inventor
陈应波
单庆斌
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Yunnan Kisc Steel Structure Co Ltd
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Yunnan Kisc Steel Structure Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02Buildings, 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
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings

Abstract

The present invention discloses a kind of frictional slip pendulum shock isolating pedestal with anti-lift-off function, including the undersetting with chute, the lower slipping block being arranged in undersetting chute, slipping block is wherein descended to be connected by sliding beam with upper slipping block, upper slipping block is connected with anti-lift-off slide, anti- lift-off plate is set between undersetting and anti-lift-off slide, and sliding beam is connected with force transmission rack.Invention increases the damping dissipation energy of horizontal direction, adds and suppresses resistance to tipping moment i.e. lift-off function.When occurring vertical force in the dynamic amplitude of vibration power of original or building has tilting moment, the anti-lift-off plate spring groups on the basis of being fixedly arranged at, which produce, suppresses drag, prevents and absorbs destructive factor caused by vertical brisance and tilting moment.Vertical tension of the present invention is big, isolating affection is strong, solves the problems, such as local lift-off caused by skyscraper tilting moment, and the frictional slip puts shock isolating pedestal energy efficient application in skyscraper.The present invention is simple in construction, and easy to process, cost is low.

Description

Frictional slip pendulum shock isolating pedestal with anti-lift-off function
Technical field
The present invention relates to a kind of architectural vibration-insulation bearing, more particularly, to a kind of frictional slip pendulum with anti-lift-off function every Bearing is shaken, belongs to building element technical field.
Background technology
Base Isolation Technology is by top-out and base isolation, due to Seismic Isolation of Isolation Layer with the isolated component of horizontal force very " soft " Rigidity very little, when an earthquake occurs, Seismic Isolation of Isolation Layer will play the effect of " every ", bear seismic displacement movement, and top Structure only makees approximate translation.
In base isolation, frictional slip pendulum shock isolating pedestal is carrying than the rubber support being widely used at present and technology is more ripe Have more premium properties in terms of lotus, weather-proof, fire prevention and material aging.But simultaneously there is bearing nonreactive lift-off function itself, It is greatly limited in the application of skyscraper.One of existing vibration-isolating system urgent problem to be solved is:How to develop The shock isolating pedestal of powerful vertical tension can be born.The shock isolation system that exploitation protrudes with vertical earthquake isolating effect, is built with solving high level Build local lift-off problem caused by tilting moment.
In Patent No. 200710099429.0《Vertically pulling-resistant type friction pendulum support》In, I be bearing, II be sliding Block, III are balance bases;There are two crucial pendulum in basic model, first is the I and II big ball arc formed pendulum i.e. sliding pendulum, is sliding The core of shock insulation is moved, function is by displacement and friction energy dissipation;Second is that the II and III bead arc formed puts i.e. balance wheel, work( Can ensure building keep level during big sliding pendulum.Every frictional slip pendulum bearing will possess the two functions, But after the patent increases resistance to plucking function in basic model, the second function, which has received, significantly to be limited.
In Application No. 201510135173.9《SMA- friction pendulums gap compounded shock isolating pedestal》In, increase on basic type Add memory alloy wire 5, reset and anti-lift-off function are completed using its high resiliency.Patent No. 201020673066.4《Resistance to plucking The triple friction pendulum-type shock isolating pedestals of type》In be that high rigidity spring 8 is set in pedestal corner(Extension spring), with its pulling force complete reset and Anti- lift-off function, but all there is pulling force it is small the problems such as.
Therefore, it is necessary to develop the shock isolating pedestal of vertical earthquake isolating effect protrusion.
The content of the invention
In order to overcome the problems such as vertical tension of prior art is small, isolating affection is insufficient, the present invention provides a kind of with anti- The frictional slip pendulum shock isolating pedestal of lift-off function, to solve the problems, such as local lift-off caused by skyscraper tilting moment.
The present invention is realized by following technical proposal:A kind of frictional slip pendulum shock isolating pedestal with anti-lift-off function, bag The undersetting with chute is included, the lower slipping block being arranged in undersetting chute, it is characterised in that:The lower slipping block passes through sliding Beam is connected with upper slipping block, and upper slipping block is connected with anti-lift-off slide, and anti-lift-off is set between undersetting and anti-lift-off slide Plate, sliding beam are connected with force transmission rack, so as to which this bearing is fixed between surface structures basis and building pillar.
The sliding beam includes center pillar, the several horizontal beams being connected with center pillar, centered on center pillar through each horizontal beam it Between disk, the upper and lower end of center pillar is respectively equipped with hemispheric upper and lower groove, and hemispheric low groove is upper with lower slipping block Bulb is matched, and the lower bulb of hemispheric upper groove and upper slipping block is matched.
The upper end of the upper slipping block is set to the first arc-shaped concave, and the of first arc-shaped concave and anti-lift-off slide lower end One arc convex is matched;The lower end of the lower slipping block is set to the second arc convex, on second arc convex and undersetting The arc chute at end is matched.
The force transmission rack includes several legs that connected, bottom separately simultaneously outwards extends still further below at top center, is connected Center at top be connected with ring flange, by the ring flange with build pillar be connected.
For the horizontal beam of the sliding beam at least provided with two, horizontal beam outer end is provided with through hole;The leg of the force transmission rack is extremely Set two less, leg bottom is provided with through hole, and bolt is set in through hole, is fixed on leg lower end pair will pass through bolt and nut The horizontal beam outer end answered;The leg quantity of the force transmission rack and the horizontal beam quantity of sliding beam are adapted.
The upper end of the anti-lift-off plate is connected with anti-lift-off slide, lower end and undersetting are connected;Anti- lift-off plate and undersetting Junction sets damping sheet.
The anti-lift-off plate is formed by stacking by multi-layer spring steel band, its both ends by bolt and nut respectively with anti-lift-off Slide and undersetting bolt.
The damping sheet includes the main body that is overlapped into by multi-layer spring steel band, the lower end of the main body be fixed on anti-lift-off plate with Top, the upper end of undersetting junction are connected with buffering connector, buffer the horizontal socket connector of one end band, the other end of connector Band groove, horizontal socket connector are provided with buffering blob of viscose by cushion block and the grafting of main body upper end in groove.
The bottom of the leg is provided with the flange in strap bolt hole.
When the leg of the force transmission rack is two, the quantity of anti-lift-off plate and damping sheet is correspondingly arranged the multiple for two;Pass When the leg of power frame is three, the quantity of anti-lift-off plate and damping sheet is correspondingly arranged the multiple for three;The leg of force transmission rack is four When individual, the quantity of anti-lift-off plate and damping sheet is correspondingly arranged the multiple for four.
During installation, multiple shock isolating pedestals are arranged between ground and building pillar, and undersetting is passed through into foundation bolt and ground Face is fixedly connected, and the ring flange at force transmission rack top center is connected by bolt group IV with building pillar.Slid after installation Before, lower slipping block and anti-lift-off ball rail chair have horizontal sliding stroke value C, have resistance vibration between sliding beam disk and buffering blob of viscose Clearance D.
What shock insulation function was realized in:When an earthquake occurs, as Fig. 1, and the original that ground base is solidified as a whole move group(Bag Include undersetting, anti-lift-off plate spring groups, anti-lift-off ball rail chair and damping plate spring groups)The former dynamic amplitude of vibration power F1 of generation, and secondary dynamic group (Including lower slipping block, sliding beam, upper slipping block, force transmission rack and building post)Produce inertia resistance.When F1 is more than inertia resistance, The dynamic group of original and it is secondary dynamic group between produce relative displacement and be horizontal sliding stroke value C and energy dissipating;When displacement makes sliding beam and buffering adhesive When resistance vibration clearance D between block is 0, damping plate spring groups play damping action energy dissipating again.When in the dynamic amplitude of vibration power F1 of original There is vertical force or building when having tilting moment, the anti-lift-off plate spring groups on the basis of being fixedly arranged at, which produce, suppresses drag, prevent and Absorb destructive factor caused by vertical brisance and tilting moment.
What equilibrium function was realized in:Turned left assuming that the former dynamic groups of Fig. 1 produce former dynamic amplitude of vibration power F1 directions, relative displacement is Horizontal sliding stroke value C on the right of Fig. 1 reduces, the sliding beam and all of the above element in secondary dynamic group along parallel double sphere rails to the right Operation, operating lower slipping block micro- pendulum and upper slipping block micro- pendulum to the left to the right under heavy load, thus maintain time dynamic group Horizontality under middle inertia.It is assumed that shock isolating pedestal only has one, say for certain, building static state inertia be broken after, As shown in Figure 1 secondary dynamic group is pendulous just as the canoe in water, but due to frictional slip pendulum shock isolating pedestal in building Quantity have more than ten even tens, so ensure that building translates under horizontality substantially during shock insulation.
The beneficial effects of the invention are as follows:The present invention adds the damping dissipation energy of horizontal direction, increased relative to prior art Suppress resistance to tipping moment i.e. lift-off function.When occurring vertical force in the dynamic amplitude of vibration power of original or building has tilting moment, it is fixedly arranged at On the basis of anti-lift-off plate spring groups produce suppress drag, prevent and absorb vertical brisance and tilting moment caused by destroy because Element.Vertical tension of the present invention is big, isolating affection is strong, solves the problems, such as local lift-off caused by skyscraper tilting moment, this rubs Wipe smooth moves pendulum shock isolating pedestal energy efficient application in skyscraper.The present invention is simple in construction, and easy to process, cost is low.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention, namely A-A sectional views in Fig. 2;
When Fig. 2 is that horizontal beam, leg quantity are 4, B-B cross section structure diagrams in Fig. 1;
Fig. 3 is damping plate structure schematic diagram;
When Fig. 4 is that horizontal beam, leg quantity are 2, B-B cross section structure diagrams in Fig. 1;
When Fig. 5 is that horizontal beam, leg quantity are 3, B-B cross section structure diagrams in Fig. 1.
Wherein:Slipping block, the upper sliding beams of 5-, 6- under the upper bulb of slipping block, 4- under 1- foundation bolts, 2- undersettings, 3- Lower bulb, the first arc convex, the 9- water of the anti-lower end of lift-off slide 15 of arc chute, the 8- of 7- undersettings upper end of upper slipping block Flat-topped ridge, the flange of 10- legs bottom, 11- legs, the ring flange at the top of 12- legs, 13- buildings pillar, the upper slipping blocks of 14-, The anti-lift-off slides of 15-, 16- disks, 17- bufferings connector, the anti-lift-off plates of 18-, 19- damping sheets, 20- cushion blocks, 21- buffering adhesives Block, C- horizontal slidings stroke value, D- resistance vibrations gap, the former dynamic amplitude of vibration power of F1-.
Embodiment
With reference to embodiment and accompanying drawing, the present invention will be further described.
As illustrated, the frictional slip pendulum shock isolating pedestal with anti-lift-off function includes:It is fixed on ground by foundation bolt 1 The undersetting 2 with chute on the basis of face, the lower slipping block 4 being arranged in the chute of undersetting 2, the lower slipping block 4 pass through cunning Beam 5 is moved with upper slipping block 14 to be connected, upper slipping block 14 is connected with anti-lift-off slide 15, undersetting 2 and anti-lift-off slide 15 it Between anti-lift-off plate 18 is set, sliding beam 5 is connected with force transmission rack, force transmission rack with building pillar 13 be connected, so as in surface structures base Formed and fixed between plinth and building pillar 13.
The sliding beam 5 includes center pillar, the several horizontal beams 9 being connected with center pillar, and each horizontal beam 9 is run through centered on center pillar Between disk 16, the upper and lower end of center pillar is respectively equipped with hemispheric upper and lower groove, hemispheric low groove and lower slipping block 4 Upper bulb 3 it is matched, the lower bulb 6 of hemispheric upper groove and upper slipping block 14 is matched.The upper slipping block 14 it is upper End is set to the first arc-shaped concave, and first arc-shaped concave and the first arc convex 8 of the anti-lower end of lift-off slide 15 are matched;It is described The lower end of lower slipping block 4 is set to the second arc convex, and second arc convex and the arc chute 7 of the upper end of undersetting 2 are matched. The force transmission rack includes several legs 11 that connected, bottom separately simultaneously outwards extends still further below at top center, connected center Place top is connected with ring flange 12, is connected by the ring flange 12 with building pillar 13.The horizontal beam 9 of the sliding beam 5 is at least Two are set, the outer end of horizontal beam 9 is provided with through hole;The leg 11 of the force transmission rack at least sets two, and the bottom of leg 11 is provided with through hole, Bolt is set in through hole, the lower end of leg 11 is fixed on the corresponding outer end of horizontal beam 9 will pass through bolt and nut;The power transmission The quantity of horizontal beam 9 of the quantity of leg 11 of frame and sliding beam 5 is adapted;The bottom of the leg 11 is provided with the flange in strap bolt hole 10.The upper end of the anti-lift-off plate 18 is connected by bolt with anti-lift-off slide 15, and lower end is connected by bolt with undersetting 2; Anti- lift-off plate 18 sets damping sheet 19 with the junction of undersetting 2.The anti-lift-off plate 18 is made up of multi-layer spring steel band overlapping, its Upper/lower terminal is respectively provided with connecting hole, by bolt and nut respectively with anti-lift-off slide 15 and the bolt of undersetting 2.It is described Damping sheet 19 includes the main body being overlapped into by multi-layer spring steel band, and the lower end of the main body is fixed on anti-lift-off by bolt and nut Top, the upper end of plate 18 and the junction of undersetting 2 are connected with buffering connector 17, and the right-hand member band of the buffering connector 17 is horizontal to be inserted Mouth joint, other end band groove, horizontal socket connector are bolted by cushion block 20 and the grafting of main body upper end, groove It is interior that buffering blob of viscose 21 is provided with by sunk screw.
Such as Fig. 4, when leg 11, horizontal beam quantity are two, the quantity of anti-lift-off plate 18 and damping sheet 19 be correspondingly arranged for Two multiple;Such as Fig. 5, when leg 11, horizontal beam quantity are three, the quantity of anti-lift-off plate spring groups 18 and damping sheet 19 is corresponding It is arranged to three multiple.Such as Fig. 2, when leg 11, horizontal beam quantity are four, the number of anti-lift-off plate spring groups 18 and damping sheet 19 Amount is correspondingly arranged the multiple for four.
During installation, multiple shock isolating pedestals are arranged between surface structures basis and building pillar 13, each shock isolating pedestal Installation be specifically:Undersetting 2 is fixedly connected by foundation bolt 1 with surface structures basis, by the top of force transmission rack leg 11 Ring flange 12 at center is connected by bolt group with building pillar 13.After installation before sliding, lower slipping block 4 and anti-lift-off are slided Seat 15 has horizontal sliding stroke value C, has resistance vibration clearance D between the disk 16 of sliding beam 5 and buffering blob of viscose 21.
What shock insulation function was realized in:When an earthquake occurs, as Fig. 1, and the original that surface structures basis is solidified as a whole are moved Group(Including 19 groups of undersetting 2,18 groups of anti-lift-off plate, anti-lift-off slide 15 and damping sheet)Former dynamic amplitude of vibration power F1 is produced, and it is secondary dynamic Group(Including lower slipping block 4, sliding beam 5, upper slipping block 14, force transmission rack and building pillar 13)Produce inertia resistance.When F1 is more than During inertia resistance, the dynamic group of original and it is secondary dynamic group between produce relative displacement and be horizontal sliding stroke value C and energy dissipating;When displacement makes sliding When resistance vibration clearance D between beam 5 and buffering blob of viscose 21 is 0,19 groups of performance damping action energy dissipatings again of damping sheet.When original is dynamic Occur vertical force or building in amplitude of vibration power F1 when having tilting moment, the 18 groups of generations of anti-lift-off plate being fixedly arranged on the basis of surface structures Drag is suppressed, prevents and absorbs destructive factor caused by vertical brisance and tilting moment.
What equilibrium function was realized in:Turned left assuming that the former dynamic groups of Fig. 1 produce former dynamic amplitude of vibration power F1 directions, relative displacement is Horizontal sliding stroke value C on the right of Fig. 1 reduces, the sliding beam 5 and all of the above part in secondary dynamic group along parallel arc convex 8, Arc chute 7 is run to the right, under heavy load operating lower slipping block 4 micro- pendulum and the micro- pendulum to the left of upper slipping block 14 to the right, this Sample just maintains the horizontality under inertia in time dynamic group.It is assumed that shock isolating pedestal only has one, say for certain, building is in static state Inertia be broken after, as shown in Figure 1 secondary dynamic group is pendulous just as the canoe in water, but due to being rubbed in building Sliding pendulum shock isolating pedestal quantity have more than ten even tens, so ensure that building during shock insulation substantially in water Translated under level state.

Claims (7)

1. a kind of frictional slip pendulum shock isolating pedestal with anti-lift-off function, including the undersetting with chute, are arranged on undersetting Lower slipping block in chute, it is characterised in that:The lower slipping block is connected by sliding beam with upper slipping block, and upper slipping block is with preventing Lift-off slide is connected, and anti-lift-off plate is set between undersetting and anti-lift-off slide, and sliding beam is connected with force transmission rack;
The sliding beam includes center pillar, the several horizontal beams being connected with center pillar, is run through centered on center pillar between each horizontal beam Disk, the upper and lower end of center pillar are respectively equipped with hemispheric upper and lower groove, the upper bulb of hemispheric low groove and lower slipping block Matched, the lower bulb of hemispheric upper groove and upper slipping block is matched;
The upper end of the upper slipping block is set to the first arc-shaped concave, first arc-shaped concave and the first arc of anti-lift-off slide lower end Shape convex surface is matched;
The lower end of the lower slipping block is set to the second arc convex, second arc convex and the arc chute phase of undersetting upper end Mating;
The force transmission rack includes several legs that connected, bottom separately simultaneously outwards extends still further below at top center, in connected Top is connected with ring flange at the heart, is connected by the ring flange with building pillar;Leg lower end is fixed on outside corresponding horizontal beam End.
2. frictional slip according to claim 1 puts shock isolating pedestal, it is characterised in that:The horizontal beam of the sliding beam is at least Two are set, horizontal beam outer end is provided with through hole;The leg of the force transmission rack at least sets two, and leg bottom is provided with through hole;It is described The leg quantity of force transmission rack and the horizontal beam quantity of sliding beam are adapted.
3. frictional slip according to claim 1 puts shock isolating pedestal, it is characterised in that:The upper end of the anti-lift-off plate is with preventing Lift-off slide is connected, lower end and undersetting connect;Anti- lift-off plate sets damping sheet with undersetting junction.
4. frictional slip according to claim 1 puts shock isolating pedestal, it is characterised in that:The anti-lift-off plate is by multilayer spring Steel band is formed by stacking, and the upper/lower terminal of anti-lift-off plate is connected with anti-lift-off slide and undersetting respectively.
5. frictional slip according to claim 2 puts shock isolating pedestal, it is characterised in that:The bottom of the leg is provided with band spiral shell The flange of keyhole.
6. frictional slip according to claim 3 puts shock isolating pedestal, it is characterised in that:The damping sheet is included by multilayer bullet The main body that spring steel band is overlapped into, the lower end of the main body is fixed on anti-lift-off plate and top, the upper end of undersetting junction are connected with Connector is buffered, buffers the horizontal socket connector of one end band, other end band groove, horizontal socket connector and the main body upper end of connector Grafting, buffering blob of viscose is provided with groove.
7. frictional slip according to claim 3 puts shock isolating pedestal, it is characterised in that:The leg of the force transmission rack is two When, the quantity of anti-lift-off plate and damping sheet is correspondingly arranged the multiple for two;When the leg of force transmission rack is three, anti-lift-off plate and resistance The quantity of Buddhist nun's plate is correspondingly arranged the multiple for three;When the leg of force transmission rack is four, the quantity of anti-lift-off plate and damping sheet is corresponding It is arranged to four multiple.
CN201610054763.3A 2016-01-27 2016-01-27 Frictional slip pendulum shock isolating pedestal with anti-lift-off function Active CN105545057B (en)

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Publication number Priority date Publication date Assignee Title
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
CN110397175B (en) * 2019-07-02 2021-09-28 广州大学 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
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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