The big damping hyperboloid of one kind subtracting shock insulation spherical bearing
Technical field
The utility model belongs to bridge and building structure field, is related to a kind of hyperboloid ball-type with big damping function and subtracts
Shock isolating pedestal product.
Background technology
In recent years, as bridge earthquake resistance sets the development of technology, more and more bridges need to use seismic isolation design scheme,
Cushioning product common at present has lead core rubber support, high-damp rubber support, friction pendulum support and the non-linear energy consumption of metal
The shortcomings of bearing etc., wherein lead for retractable pencil bearing and high-damp rubber support initial stiffness are low, earthquake displacement is small, and durability is poor is important
Using less in bridge, the non-linear energy dissipating support of metal has larger initial stiffness and excellent energy consumption, but is damped after shaking secondary
Generation obviously plays retrospective deformation, cannot automatically reset, and needs replacing metal damping pair, using being restricted, friction pendulum support has
There are good shock-absorbing function and shock insulation function, and it is a kind of ideal bridge earthquake resistance production from recovery function to have after shaking
Product, but since friction pendulum support friction coefficient is smaller, damping is smaller, and energy dissipation capacity is limited, and bridge is difficult to control in highlight lines area
Displacement after Liang Zhen.
Utility model content
The purpose of this utility model is that proposition is a kind of subtracting shock insulation spherical bearing with the hyperboloid damped greatly, by existing
Hyperboloid, which subtracts, adds damping unit and corresponding telecontrol equipment on the basis of shock insulation spherical bearing to increase bearing in earthquake
Damping, earthquake energy, to realize effective combination of bearing damping and shock insulation, increase substantially bearing subtracts shock insulation work(
Can, achieve the purpose that effectively to control displacement after bearing shakes.The utility model have hyperboloid subtract shock insulation spherical bearing it is good every
Auto-reset function after function and earthquake is shaken, while increasing the damping force of bearing by damping unit, reduces bearing in earthquake
When conflict power, reduce bridge earthquake motion peak acceleration, bridge structure safe is effectively ensured, simultaneously because damping unit has
Good energy consumption effect, can significantly reduce bridge seismic energy.The utility model hysteresis loop is full, and energy dissipation capacity is much larger than
Hyperboloid subtracts shock insulation spherical bearing and other antidetonation products, especially suitable for highlight lines, long place period zones bridge earthquake resistance knot
Structure.
What the technical solution of the utility model was realized in:
The big damping hyperboloid of one kind subtracting shock insulation spherical bearing, including lower seat board, upper base plate, spherical crown liner plate, damping unit, institute
It states and forms receiving portion between lower seat board and upper base plate, spherical crown liner plate rotational motion in receiving portion, spherical crown liner plate and lower seat board
Contact position forms metal slider -- contact position of the friction pair of nonmetallic slide plate, spherical crown liner plate and upper base plate forms metal slider --
Footstock plate is arranged in the top of upper base plate in the curved surface pivoting friction pair of nonmetallic slide plate, and upper base plate is with footstock plate in contact position shape
At nonmetallic slide plate -- the planar slide friction of metal slider is secondary, limiting device is arranged on lower seat board, limiting device is configured
To transmit the active force of horizontal direction under the first use state.
Preferably, the concave spherical surface of the lower seat board and lower convex spherical of spherical crown liner plate, the concave spherical surface of upper base plate and spherical crown liner plate
For upper convex spherical at the rotating mechanism of bearing, it is stainless on the concave spherical surface of lower seat board and the concave spherical surface of upper base plate to be respectively coated by spherical surface
Spherical surface nonmetallic slide plate composition metal slider -- the nonmetallic cunning inlayed in steel slide plate, with the upper and lower convex spherical pit of spherical crown liner plate
The curved surface pivoting friction pair of plate.
Preferably, the lower plane of the upper plane of the upper base plate of the bearing and footstock plate forms bearing planar slide mechanism,
The plane stainless steel slide plate of the plane nonmetallic slide plate inlayed in plane pit on upper base plate and footstock plate lower plane cladding forms
Planar slide friction is secondary.
Preferably, the limiting device includes limiting plate and shear pin, and shear pin is configured as fixing limiting plate, limit
Position plate constrains the sports limiting for subtracting the secondary horizontal direction of shock insulation friction under the first use state.
Preferably, connection bolt is provided on limiting plate, under seismic force effects, connection bolt and shear pin can be by
It cuts, when limiting device constraint release, compound motion is carried out between the two curved surfaces friction of bearing is secondary.
Preferably, the side plane of the side plane of the upper base plate of the bearing and footstock plate forms bearing guide surface skate machine
Structure, the guiding stainless steel slide plate composition that the flat blade fin inlayed in upper base plate side plane pit is coated with footstock plate side plane are led
It rubs to planar slide secondary.
Preferably, the damping unit includes that viscous damper is arranged on upper base plate, the both ends difference of viscous damper
Equipped with sliding block, sliding block and block form sliding friction pair and counter-force transmission mechanism, block and be fixed on lower seat board, the cunning of bearing
Sliding friction pair is formed between block and block.
Preferably, the piston rod both ends of the viscous damper form rotation articulated structure with sliding block, adapt to bearing on ground
The corner that non-plane motion generates occurs for shake state.
Preferably, the sliding block of the bearing forms sliding friction pair, the sliding block inlayed in sliding block side plane pit with block
Slide plate and the stainless steel slide plate of block side cladding form sliding friction pair.
Preferably, the bearing is divided into unidirectional (vertical or horizontal) bearing, multidirectional bearing or hold-down support structural shape;
Damping unit is in that vertical direction across bridge is arranged, or single bridge is to setting.
The beneficial effects of the utility model are as follows:
1) the utility model proposes big damping hyperboloid subtract shock insulation spherical bearing, when normal operation, bearing upper plate passes through
The spacer pin being fixed on lower seat board is limited, and bearing only rotates on curved surface without opposite sliding, glues at this time
With cylinder body relative motion does not occur for stagnant damper piston, and damper is without work, and the rotation of bearing is by between upper and lower support plate
Curved surface friction is secondary to be realized, while the rotation between damper and block is secondary real by the spherical rotation friction between sliding block and piston rod
It is existing.Bearing normal displacement is realized by the flat frictional pair between bearing footstock plate and upper base plate, ensures bridge normal operation
It is required that.
2) when small shake occurs, the limiting device of bearing is cut, and the secondary sliding constraint of bearing curved surface friction is released from, on bearing
Seat board slides relative to lower seat board on curved surface, is slided on curved surface by beam structure kinetic energy being changed into potential energy, drop
Low earthquake motion peak acceleration, and consumed energy by the friction between the pair that rubs in bearing slipping, realize bearing
Subtract shock insulation function.On the other hand, with the sliding of bearing upper base plate, the cylinder body with fluctuation dampers is carried out relative to damper piston
Sliding, damper generate larger viscous damping force, and as movement velocity increases, and damping force increases, and dissipate ground during exercise
Energy is shaken, the damping and isolation effect of bearing is increased substantially, realizes that bearing is good and subtracts shock insulation function.
By the utility model, realizes damping, highly energy-consuming hyperboloid greatly and subtract shock insulation spherical bearing function, overcome common
Two-sided to subtract the energy consumption of shock insulation spherical bearing small, is not suitable with problem to highlight lines, long vibrations period place, solves highlight lines, long shake
Dynamic period place Bridge Earthquake Resistance Design problem, is a kind of ideal antidetonation product.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is that the big damping hyperboloid of the utility model subtracts shock insulation spherical bearing structural schematic diagram;
Fig. 2 is that the big damping hyperboloid of the utility model subtracts shock insulation spherical bearing schematic top plan view;
Fig. 3 is that the big damping hyperboloid of the utility model subtracts the signal of shock insulation spherical bearing damper carriage partial enlargement
Figure;
Fig. 4 is that the big damping hyperboloid of the utility model subtracts the damper fixed block front view structure signal of shock insulation spherical bearing
Figure;
Fig. 5 is that the damper fixed block right side that the big damping hyperboloid of the utility model subtracts shock insulation spherical bearing regards structural representation
Figure;
Fig. 6 is that the big damping hyperboloid of multi-orientation type of the utility model subtracts shock insulation spherical bearing structural schematic diagram.
Fig. 7 is that the big damping hyperboloid of fixed of the utility model subtracts shock insulation spherical bearing structural schematic diagram.
Fig. 8 is that the one direction of the utility model arranges that the big damping hyperboloid of damping unit subtracts shock insulation spherical bearing structure and shows
It is intended to.
Wherein:1, lower seat board, 2, key, 3, bolt, 4, block, 5, block stainless steel slide plate, 6, sliding block slide plate, 7, sliding block,
8, damper fixed block, 9, bolt, 10, viscous damper, 11, upper base plate, 12, footstock plate, 13, plane stainless steel slide plate, 14,
Plane nonmetallic slide plate, 15, blade fin, 16, be oriented to stainless steel slide plate, 17, spherical crown liner plate, 18, spherical surface nonmetallic slide plate,
19, spherical surface stainless steel slide plate, 20, rotation slide plate, 21, rotation stainless steel slide plate, 22, limiting plate, 23, connection bolt, 24, shearing
Pin.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not under the premise of making the creative labor
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment 1, as shown in fig. 1~fig. 5, the utility model discloses a kind of big damping hyperboloids to subtract shock insulation ball-type branch
Seat, including lower seat board 1, upper base plate 11, spherical crown liner plate 17, damping unit are formed between the lower seat board 1 and upper base plate 11 and are accommodated
Portion, is arranged spherical crown liner plate 17 in receiving portion, and spherical crown liner plate 17 being capable of the rotational motion in receiving portion, spherical crown liner plate 17 and lower seat
Metal slider -- the curved surface pivoting friction pair of nonmetallic slide plate, spherical crown liner plate 17 connect with upper base plate 11 for the contact position formation of plate 1
Synapsis forms metal slider -- the curved surface pivoting friction pair of nonmetallic slide plate, spherical crown liner plate 17 and lower seat board 1, the formation of upper base plate 11
Bi-curved friction is secondary, footstock plate 12 is arranged in the top of upper base plate 11, upper base plate 11 forms with footstock plate 12 in contact position non-
The planar slide friction of metal slider -- metal slider is secondary, is arranged limiting device on lower seat board 1, and limiting device is configured as the
The active force of horizontal direction is transmitted under one use state.
First use state is bearing when not by seismic force effects, the use state of normal use,
Second use state is the use state after bearing is destroyed by seismic force.
Preferably, the limiting device includes limiting plate 22 and shear pin 24, and shear pin 24 is configured as limiting plate
22 fix, and limiting plate 22 constrains the sports limiting for subtracting the secondary horizontal direction of shock insulation friction under the first use state, and described subtracts
Secondary shock insulation friction includes curved surface sliding friction pair and plane sliding friction pair.
As some embodiments of the utility model, the limiting plate 22 forms rotation in contact position with spherical crown liner plate 17 and rubs
It wipes secondary.Specifically, the setting rotation slide plate 20 in spherical crown liner plate 17, corresponding, setting rotation stainless steel is slided on limiting plate 22
Plate 21, the guarantee bearing with sum only rotate on curved surface without opposite sliding.
Further, connection bolt 23 is provided on limiting plate 22, connection bolt 23 further ensures limiting plate 22
The stability being connect with lower seat board 1.
Under seismic force effects, connection bolt 23 is cut with shear pin 24, when bearing limits constraint release, is in second
Use state, bearing carry out compound motion between the friction of two curved surfaces is secondary, realize that beam structure is swung on curved surface, reach subtract every
Shake function.
Preferably, as some embodiments of the utility model, the damping unit includes being arranged to glue on upper base plate 11
Stagnant damper 10, the both ends of viscous damper 10 are respectively equipped with sliding block 7, sliding block 7 and block 4 form sliding friction pair and counter-force
Transmission mechanism, block 4 are fixed on lower seat board 1.
As some embodiments of the utility model, the viscous damper 10 is at least arranged two, two viscous dampings
Device 10 is arranged in the both sides of upper base plate 11, and is arranged symmetrically along the center line of upper base plate 11, avoids beam structure when swinging,
The reliability and security of 10 energy dissipation capacity of viscous damper.
Further, sliding friction pair is formed between the sliding block 7 and block 4 of bearing, adapts to viscous damper 10 in bearing
On horizontal sliding.Specifically, the sliding block slide plate 6 inlayed in 7 side plane pit of sliding block, stainless steel is coated in 4 side of block
Slide plate 5, sliding block slide plate 6 form the sliding friction pair with stainless steel slide plate 5.
Preferably, the piston rod both ends of the viscous damper 10 form rotation articulated structure with sliding block 7, adapt to bearing and exist
The relative rotation that non-plane motion generates occurs for earthquake state.Specifically, the piston rod both ends of the viscous damper 10 are set respectively
It is set to convex spherical structure, convex spherical structure is matched with the concave spherical surface of sliding block 7, forms rotation articulated structure.
As some embodiments of the utility model, the viscous damper 10 can be single bridge on upper base plate 11 to
Setting, multidirectional can also be arranged.
Embodiment 2, specifically, the bearing is mainly slided by lower seat board 1, key 2, block 4, block stainless steel slide plate 5, sliding block
Plate 6, sliding block 7, damper fixed block 8, viscous damper 10, upper base plate 11, footstock plate 12, plane stainless steel slide plate 13, plane
Nonmetallic slide plate 14, blade fin 15, guiding stainless steel slide plate 16, spherical crown liner plate 17, spherical surface nonmetallic slide plate 18, spherical surface are stainless
The components compositions such as steel slide plate 19, limiting plate 22, connection bolt 23, shear pin 24.
The concave spherical surface of the lower seat board 1 of the utility model and the lower convex spherical of spherical crown liner plate 17, upper base plate 11 concave spherical surface with
The upper convex spherical of spherical crown liner plate 17 at bearing rotating mechanism, the concave spherical surface of lower seat board 1 and the concave spherical of upper base plate 11 at
The receiving portion of 17 rotational motion of spherical crown liner plate is accommodated, ball is respectively coated by the concave spherical surface of lower seat board 1 and the concave spherical surface of upper base plate 11
The composition rotation of spherical surface nonmetallic slide plate 18 inlayed in face stainless steel slide plate 19, with 17 upper and lower convex spherical pit of spherical crown liner plate rubs
Wipe secondary, the rotation demand of adaptation top girder construction.Under seismic force effects, connection bolt 23 is cut with shear pin 24, is propped up
Bearing carries out compound motion between the friction of two curved surfaces is secondary when seat limit constraint release, realizes that beam structure is swung on curved surface,
Reach and subtracts shock insulation function.
The upper plane of the upper base plate 11 of the bearing of the utility model forms bearing planar slide with the lower plane of footstock plate 12
Mechanism, the plane nonmetallic slide plate 14 inlayed in plane pit on upper base plate 11 and the plane that 12 lower plane of footstock plate coats are stainless
Steel slide plate 13 forms planar slide friction pair, adapts to the horizontal sliding demand of top girder construction.
The limiting plate 22 of the bearing of the utility model forms the limiting device of bearing with shear pin 24, in normal operating condition
The lower active force for transmitting horizontal direction;Occur to cut in earthquake state lower limit pin and destroy, bearing subtracts the secondary constrained solution of shock insulation friction
It removes and carries out pendulum model sliding on spherical surface to achieve the purpose that bearing subtracts shock insulation.
The both sides of the bearing of the utility model are respectively equipped with viscous damper 10, and the cylinder part of viscous damper 10 is fixed
It is fixed in the card slot of upper base plate 11 and with damper fixed block 8 and bolt 9, the piston rod both ends point of viscous damper 10
It She You not sliding block 7 and the formation sliding friction pair of fixed block 4 and counter-force transmission mechanism above lower seat board 1.
The sliding block 7 of the bearing of the utility model forms sliding friction pair with block 4, is inlayed in 7 side plane pit of sliding block
Sliding block slide plate 6 and the stainless steel slide plate 5 of 4 side of block cladding form sliding friction pair, adapt to viscous damper 10 on bearing
Horizontal sliding.
The bearing of the utility model is respectively set to convex spherical structure and sliding block 7 at the piston rod both ends of viscous damper 10
Concave spherical surface match, formed rotation articulated structure, adapt to bearing earthquake state occur non-plane motion generate relative rotation,
Realize that power transmission is steady.
The bearing of the utility model can be divided into unidirectional (vertical or horizontal) bearing, multidirectional bearing and hold-down support structural type
Formula.
Fig. 6 and Fig. 7 discloses the big damping hyperboloid of multi-orientation type and subtracts shock insulation spherical bearing structure and the big damping hyperbolic of fixed
Face subtracts shock insulation spherical bearing structure.
The utility model can calculate concrete condition setting according to bridge earthquake resistance and indulge direction across bridge damping unit, also can single bridge to
Arrange damping unit.
The big damping hyperboloid that Fig. 8 discloses the one direction arrangement damping unit of the utility model subtracts shock insulation spherical bearing
A kind of structure.
The utility model can greatly improve damping force when bearing taphrogeny, substantially increase the energy consumption energy of bearing
Power solves highlight lines, long vibrations period place Bridge Earthquake Resistance Design problem.
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.