CN205046694U - X type anisotropic friction double pendulum subtracts isolation bearing - Google Patents
X type anisotropic friction double pendulum subtracts isolation bearing Download PDFInfo
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- CN205046694U CN205046694U CN201520776542.8U CN201520776542U CN205046694U CN 205046694 U CN205046694 U CN 205046694U CN 201520776542 U CN201520776542 U CN 201520776542U CN 205046694 U CN205046694 U CN 205046694U
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Abstract
The utility model discloses a X type anisotropic friction double pendulum subtracts isolation bearing, including last bedplate, down the bedplate, upward articulated slider, down articulated slider, go up antifriction plate, antifriction plate, sphere antifriction plate, dust cover and bolt down. Going up the bedplate and being the X type with lower bedplate, the outside is the plane, and the inboard is the spill curved surface, and the spill curved surface makes up into the recess with long side bumper piece, minor face dog. Be centre of sphere slider in the recess, form through the articulated combination of spherical curved surface by last articulated slider and lower articulated slider. Through respectively to last bedplate recess, the lower curvature radius's, length, coefficient of friction etc. Of bedplate recess different the setting, realize that each subtracts shock insulation rigidity, displacement, damping etc. To the difference to level through centre of sphere slider is rotated and the vertical turn, realizes that the bridge subtracts the shock insulation design based on the anisotropic of performance. The utility model discloses a characteristics lie in: this support can realize that bridge anisotropic subtracts shock insulation design, and it is clear and definite to subtract shock insulation mechanism, is applicable to bridges such as straight, bent, bevel, and is just more economical.
Description
Technical field
The utility model relates to a kind of bridge construction X-type anisotropy friction double pendulum vibration absorption and isolation support.
Background technology
In recent years, in global range, seismic activity takes place frequently, and causes a large amount of building structure destruction, casualties and economic loss.As the bridge engineering of Transport Hub, once be seriously damaged in earthquake, not only can cause huge direct losses, and bring great difficulty to disaster relief work, and cause serious secondary disaster and environmental disruption thus, for extra-large bridge, also great social influence can be caused.Therefore, in order to ensure the safety of bridge, be especially positioned at the anti-seismic performance of the long large bridge in the comparatively active area of earthquake, performance-based seismic design must be carried out to bridge construction, to improve its safety.
Seismic isolation design improves one of bridge construction anti-seismic performance, the effective means reducing earthquake loss.The general principle that bridge subtracts seismic isolation technology is, structure is separated with ground motion during earthquake or support movement to greatest extent by seismic isolation device, thus significantly reduces the geological process being delivered to superstructure.Wherein, vibration absorption and isolation support is the form of structure that on bridge, seismic isolation device is the most frequently used.The vibration absorption and isolation support of current employing mainly contains following two classes: the first kind is rubber-like vibration absorption and isolation support, such as lead core rubber support, high-damp rubber support etc.Equations of The Second Kind is friction pendulum support.The supporting capacity of rubber-like vibration absorption and isolation support is limited, affected by environment larger, and endurance quality is poor, only for bridge that span is less, and friction pendulum support has hyposensitivity to seismic stimulation frequency range and high stability, and there is stronger self-resetting capability and the combination property such as excellent shock insulation and energy dissipating mechanism.The principle of friction pendulum support is, the works such as bridge itself and ground are isolated, utilizes the natural vibration period of the design cycle extending structure of friction single pendulum, reduce seismic power augmentation effect, be potential energy and heat energy by kinetic transformation, transfer and earthquake energy effectively.
Traditional friction pendulum support mainly contains: single-curved surface friction pendulum support, hyperboloid friction pendulum support etc., and the upper base plate of bearing and lower seat board are generally circle.But, traditional friction pendulum support has the following disadvantages: the upper base plate of conventional friction pendulum bearing and lower seat board are for circular, it is identical that all directions provided by bearing subtract shock insulation rigidity, therefore, cannot according to bridge construction different directions (as vertical bridge to direction across bridge) self-vibration characteristic carry out based on performance requirement seismic isolation design, do not have and anisotropicly subtract shock insulation function; For curve bridge, Skew Bridge, traditional friction pendulum support cannot meet the bearing caused in seismic swing process due to main beam structure and rotate at random, and meet bridge construction different directions simultaneously subtract isolation property demand, therefore, the seismic isolation design of curve bridge, Skew Bridge can not be met; Traditional friction pendulum support volume is comparatively large, and cost is higher, and for bottom bridge main beam, the dimensional requirement of bent cap etc. is higher.
In order to adapt to the dissimilar bridges such as straight line bridge, curve bridge, Skew Bridge respectively to the seismic isolation design based on performance, improve the stress performance of bearing and bridge construction, friction pendulum support should be made to have anisotropy and to subtract shock insulation function, and there is good hysteretic energy characteristic, wide adaptability, and more economical.
Utility model content
(1) technical problem that will solve
For the deficiency of existing friction pendulum support, the utility model provides a kind of X-type anisotropy to rub double pendulum vibration absorption and isolation support, to realize bridge based on performance respectively to seismic isolation design.In the process subtracting shock insulation realization, arrange respectively by the difference of upper base plate, lower seat board groove radius of curvature, length, friction factor etc., realize respectively subtracting shock insulation rigidity, displacement, damping etc. to different, and horizontally rotating and vertical rotating by centre of sphere slide block, realize the anisotropy seismic isolation design of bridge based on performance.Under the prerequisite that function is identical, more save material relative to conventional friction pendulum bearing, subtract shock insulation clear mechanism, be applicable to the bridges such as straight, curved, oblique, and more economical.
(2) technical scheme
For achieving the above object, the technical solution that the utility model adopts is:
A kind of X-type anisotropy friction double pendulum vibration absorption and isolation support, comprise upper base plate 1, lower seat board 2, upper hinged slide block 3, lower hinged slide block 4, upper wearing plate 5, lower wearing plate 6 and sphere wearing plate 7, wherein, upper base plate 1, upper hinged slide block 3, lower hinged slide block 4 and lower seat board 2 set gradually from top to bottom, upper wearing plate 5 is arranged between upper base plate 1 and upper hinged slide block 3, lower wearing plate 6 is arranged between lower hinged slide block 4 and lower seat board 2, and sphere wearing plate 7 is arranged between hinged slide block 3 and lower hinged slide block 4; The outside of upper base plate 1 and lower seat board 2 is plane, and inner side is concave curvatures, and in plane, upper base plate 1 and lower seat board 2 are X-type.
In such scheme, the concave curvatures of described upper base plate 1 and the long side bumper block 12 of upper base plate, upper base plate minor face block 13 are combined into upper base plate groove 14, and concave curvatures and lower seat board long side bumper block 15, the lower seat board minor face block 16 of described lower seat board 2 are combined into lower seat board groove 17.
In such scheme, when designing this X-type anisotropy friction double pendulum vibration absorption and isolation support, the plane projection long side direction length of upper base plate groove 14 and upper base plate 1 is l, and short side direction length is 0.35l; Lower seat board groove 17 plane projection long side direction length is 0.8l ~ 1.2l, and short side direction length is 0.3l ~ 0.4l; Upper base plate groove 14 radius of curvature is R, and lower seat board groove 17 radius of curvature is 0.8R ~ 1.2R; Groove radius of curvature R=T
2g/4 π
2, T is the target period that bridge subtracts shock insulation direction, and g is acceleration of gravity; Bridge is subtracting the equivalent stiffness Kfps=W/R in shock insulation direction, and W is the weight of bearing carrying.
In such scheme, the top of described lower hinged slide block 4 is slide block spherical crown 10, and this slide block spherical crown 10 is convex shaped arc curved surfaces, and upper hinged slide block 3 is hinged by slide block spherical crown 10 with lower hinged slide block 4, forms the centre of sphere slide block 11 of bearing.
In such scheme, described centre of sphere slide block 11 is placed between upper base plate groove 14, lower seat board groove 17, centre of sphere slide block 11 end face is identical with the radius of curvature of upper base plate groove 14, lower seat board groove 17 respectively with the radius of curvature of bottom surface, make centre of sphere slide block 11 respectively with upper base plate 1, lower seat board 2 plane-plane contact, realize smooth sliding, and stress can be avoided to concentrate.
In such scheme, the length of side of described centre of sphere slide block 11 is 1/3 of upper base plate 1 long side direction length, be highly 1/5 ~ 1/3 of centre of sphere slide block 11 length of side, centre of sphere slide block 11 can realize horizontally rotating and vertical rotating of bearing upper base plate 1 and lower seat board 2 by slide block spherical crown 10, thus realizes the seismic isolation design to all directions in plane.
In such scheme, described upper base plate long side bumper block 12, the long side bumper block of lower seat board 15 pairs of centre of sphere slide blocks 11 play slide-and-guide effect, and upper base plate long side bumper block 12, upper base plate minor face block 13, lower seat board long side bumper block 15, lower seat board minor face block 16 all can prevent centre of sphere slide block 11 landing.
In such scheme, the top of described lower hinged slide block 4 is slide block spherical crown 10, is convex shaped arc curved surface, and radius of curvature is identical with the concave circular arcs surface curvature of upper hinged slide block 3; Slide block spherical crown 10 surrounding arranges slide block block 18, prevents the landing of hinged slide block 3; Above between hinged slide block 3 and slide block block 18, space of slider 19 is set, realizes bearing and indulge bridge to the vertical rotating with direction across bridge at bridge.
In such scheme, the top of described hinged slide block 3 is convex single-curved surface, post wearing plate 5, and its radius of curvature is identical with the radius of curvature of upper base plate groove 14 outside it; The bottom of described lower hinged slide block 4 is convex single-curved surface, post lower wearing plate 6 outside it, and its radius of curvature is identical with the radius of curvature of lower seat board groove 17, make centre of sphere slide block 11 respectively with upper base plate 1, lower seat board 2 plane-plane contact, realize smooth sliding, and stress can be avoided to concentrate.
In such scheme, the outside of this X-type anisotropy friction double pendulum vibration absorption and isolation support is also provided with dust cover 8, and is fixed by bolt 9 and the X-type anisotropy double pendulum vibration absorption and isolation support that rubs.
(3) beneficial effect
1, the X-type anisotropy friction double pendulum vibration absorption and isolation support that provides of the utility model, adopts anisotropy seismic isolation design.Be sphere inside upper hinged slide block, lower hinged slide block, with spherical plate close contact, realized the rotation in any level direction by sphere; The space of slider that upper and lower hinged slide block both sides are arranged, can realize bearing vertical rotating, thus realize bearing at the seismic isolation design of all directions based on performance.
2, the X-type anisotropy friction double pendulum vibration absorption and isolation support that provides of the utility model, adopts the seismic isolation design based on performance.The curved indentations radius of curvature, length, friction factor etc. of upper base plate and lower seat board are indulged bridge to the shock insulation demand that subtracts with direction across bridge according to bridge and are arranged respectively, realize bridge construction based on performance respectively to (comprise vertical bridge to direction across bridge) seismic isolation design, make bridge construction seismic isolation design safer, economical, applicable.
3, the X-type anisotropy friction double pendulum vibration absorption and isolation support that provides of the utility model, bearing can assembled property and partial component convertibility.Bearing by upper base plate, upper hinged slide block, lower hinged slide block, lower seat board by slide plane assembled, the curved surface contacted between each component is adapted design, meet the seamless contact of contact surface, and each component according to carrying tonnage, subtracting the demands such as shock insulation rigidity, displacement, damping, can design respectively.When bearing partial component needs to change, independent member designs can be carried out.
4, the X-type anisotropy friction double pendulum vibration absorption and isolation support that provides of the utility model, strong adaptability.Upper base plate and lower seat board level are X-type, horizontally rotating and vertical rotating by centre of sphere slide block, what realize any direction in bearing plane subtracts shock insulation function and Self-resetting function, to meet the seismic isolation design based on performance such as straight line bridge, curve bridge, Skew Bridge.
5, the X-type anisotropy friction double pendulum vibration absorption and isolation support that provides of the utility model, more saves material relative to conventional friction pendulum bearing, reduces costs.
Accompanying drawing explanation
Fig. 1 is the isometric views of the X-type anisotropy friction double pendulum vibration absorption and isolation support that the utility model provides;
Fig. 2 is the elevation of the X-type anisotropy friction double pendulum vibration absorption and isolation support that the utility model provides;
Fig. 3 is the left view of the X-type anisotropy friction double pendulum vibration absorption and isolation support that the utility model provides;
Fig. 4 is the top view of the X-type anisotropy friction double pendulum vibration absorption and isolation support that the utility model provides, and wherein upper base plate and lower seat board are θ angle;
Fig. 5 is the schematic diagram of the centre of sphere slide block 11 of the X-type anisotropy friction double pendulum vibration absorption and isolation support that the utility model provides;
Fig. 6 a and Fig. 6 b is the schematic diagram of the upper hinged slide block 3 of the X-type anisotropy friction double pendulum vibration absorption and isolation support that the utility model provides, and wherein Fig. 6 a is the elevation of upper hinged slide block 3, and Fig. 6 b is the lateral view of upper hinged slide block 3;
Fig. 7 a and Fig. 7 b is the schematic diagram of the lower hinged slide block 4 of the X-type anisotropy friction double pendulum vibration absorption and isolation support that the utility model provides, and wherein Fig. 7 a is the elevation of lower hinged slide block 4, and Fig. 7 b is the lateral view of lower hinged slide block 4;
Fig. 8 is the elevation of the X-type anisotropy friction double pendulum vibration absorption and isolation support of the band dust cover that the utility model provides;
In figure, upper base plate 1, lower seat board 2, upper hinged slide block 3, lower hinged slide block 4, upper wearing plate 5, lower wearing plate 6, sphere wearing plate 7, dust cover 8, bolt 9, slide block spherical crown 10, centre of sphere slide block 11, upper base plate long side bumper block 12, upper base plate minor face block 13, upper base plate groove 14, lower seat board long side bumper block 15, lower seat board minor face block 16, lower seat board groove 17, slide block block 18, space of slider 19.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is further described.
The X-type anisotropy friction double pendulum vibration absorption and isolation support that the utility model provides, mainly comprise upper base plate 1, lower seat board 2, upper hinged slide block 3, lower hinged slide block 4, upper wearing plate 5, lower wearing plate 6 and sphere wearing plate 7, wherein, upper base plate 1, upper hinged slide block 3, lower hinged slide block 4 and lower seat board 2 set gradually from top to bottom, upper wearing plate 5 is arranged between upper base plate 1 and upper hinged slide block 3, lower wearing plate 6 is arranged between lower hinged slide block 4 and lower seat board 2, and sphere wearing plate 7 is arranged between hinged slide block 3 and lower hinged slide block 4.
As shown in Figures 1 to 4, the upper base plate 1 of X-type anisotropy friction double pendulum vibration absorption and isolation support, the outside of lower seat board 2 are plane, and inner side is concave curvatures, and in plane, upper base plate 1 and lower seat board 2 are X-type.The concave curvatures of upper base plate 1 and the long side bumper block 12 of upper base plate, upper base plate minor face block 13 are combined into upper base plate groove 14, and concave curvatures and lower seat board long side bumper block 15, the lower seat board minor face block 16 of lower seat board 2 are combined into lower seat board groove 17.Radius of curvature, the length of upper base plate groove 14, lower seat board groove 17, and upper hinged slide block 3, lower hinged slide block 4 bearing capacity size etc. all can design respectively according to subtracting shock insulation demand, then assemble, form X-type anisotropy friction double pendulum vibration absorption and isolation support.
As shown in Figure 2, Figure 3, Figure 4, radius of curvature, the length and friction factor etc. of the long side direction concave curvatures of upper base plate 1, lower seat board 2 arrange respectively according to the shock insulation demand that subtracts of bridge construction all directions, make along upper base plate 1 or lower seat board 2 long side direction to subtract shock insulation rigidity, displacement, damping etc. different, realize the anisotropy seismic isolation design of bridge construction based on performance.When designing this X-type anisotropy friction double pendulum vibration absorption and isolation support, the plane projection long side direction length of upper base plate groove 14 and upper base plate 1, short side direction length is 0.35l.Lower seat board groove 17 plane projection long side direction length is 0.8l ~ 1.2l, and short side direction length is 0.3l ~ 0.4l.Upper base plate groove 14 radius of curvature is R, and lower seat board groove 17 radius of curvature is 0.8R ~ 1.2R.Groove radius of curvature R=T
2g/4 π
2, T is the target period that bridge subtracts shock insulation direction, and g is acceleration of gravity; Bridge is subtracting the equivalent stiffness K in shock insulation direction
fps=W/R, W are the weight of bearing carrying.
As shown in Figures 2 and 3, the top of lower hinged slide block 4 is slide block spherical crown 10, and slide block spherical crown 10 surrounding arranges slide block block 18, prevents the landing of hinged slide block 3, above between hinged slide block 3 and slide block block 18, space of slider 19 is set, realizes bearing and indulge bridge to the vertical rotating with direction across bridge at bridge.
As shown in Figure 5, the bottom of the upper hinged slide block 3 of X-type anisotropy friction double pendulum vibration absorption and isolation support is concave circular arcs curved surface, and posts the sphere wearing plate 7 adapted with it.The top of lower hinged slide block 4 is slide block spherical crown 10, is also a convex shaped arc curved surface.Upper hinged slide block 3 is hinged by slide block spherical crown 10 with lower hinged slide block 4, forms the centre of sphere slide block 11 of bearing.Therefore, centre of sphere slide block 11 can realize horizontally rotating and vertical rotating of bearing upper base plate 1 and lower seat board 2 by slide block spherical crown 10.When upper base plate 1 or lower seat board 2 are horizontally rotated by centre of sphere slide block 11, upper base plate 1 and lower seat board 2, in X-type, can be arranged to different angles according to subtracting shock insulation demand, thus can realize the seismic isolation design to all directions in plane.The different rigidity, displacement, damping etc. that there is provided further combined with upper base plate 1, lower seat board 2 subtract isolation property parameter, this bearing can realize bridge construction planar anisotropic subtract isolation property design.
The top of upper hinged slide block 3 is convex single-curved surface, post wearing plate 5, and its radius of curvature is identical with the radius of curvature of upper base plate groove 14 outside it.The bottom of lower hinged slide block 4 is convex single-curved surface, post lower wearing plate 6 outside it, and its radius of curvature is identical with the radius of curvature of lower seat board groove 17, make centre of sphere slide block 11 respectively with upper base plate 1, lower seat board 2 plane-plane contact, realize smooth sliding, and stress can be avoided to concentrate.
Centre of sphere slide block 11 is placed between upper base plate groove 14, lower seat board groove 17, composition X-type anisotropy friction double pendulum vibration absorption and isolation support.Centre of sphere slide block 11 end face is identical with the radius of curvature of upper base plate groove 14, lower seat board groove 17 respectively with the radius of curvature of bottom surface, make centre of sphere slide block 11 respectively with upper base plate 1, lower seat board 2 plane-plane contact, realize smooth sliding, and can avoid stress concentrate.The length of side of centre of sphere slide block 11 is about 1/3 of upper base plate 1 long side direction length l, highly be about 1/5 ~ 1/3 of centre of sphere slide block 11 length of side, centre of sphere slide block 11 can realize horizontally rotating and vertical rotating of bearing upper base plate 1 and lower seat board 2 by slide block spherical crown 10, thus realizes the seismic isolation design to all directions in plane.
The radius of curvature, length, friction factor etc. of upper base plate groove 14, lower seat board groove 17 arrange respectively according to the shock insulation demand that subtracts of bridge construction all directions, make along upper base plate 1 or lower seat board 2 long side direction to subtract shock insulation rigidity, displacement, damping etc. different, realize the anisotropy seismic isolation design of bridge construction based on performance.Upper base plate long side bumper block 12, the long side bumper block of lower seat board 15 pairs of centre of sphere slide blocks 11 play slide-and-guide effect, and upper base plate long side bumper block 12, upper base plate minor face block 13, lower seat board long side bumper block 15, lower seat board minor face block 16 all can prevent centre of sphere slide block 11 landing.
As shown in Figure 6, the bottom of the upper hinged slide block 3 of X-type anisotropy friction double pendulum vibration absorption and isolation support is concave circular arcs curved surface, and sphere wearing plate 7 and this concave circular arcs curved surface of posting between upper hinged slide block 3 and lower hinged slide block 4 adapt.
As shown in Figure 7, the top of the lower hinged slide block 4 of X-type anisotropy friction double pendulum vibration absorption and isolation support is slide block spherical crown 10, and be convex shaped arc curved surface, radius of curvature is identical with the concave circular arcs surface curvature of upper hinged slide block 3.
As shown in Figure 8, outside X-type anisotropy friction double pendulum vibration absorption and isolation support, be provided with dust cover 8, and fixed by bolt 9 and the X-type anisotropy double pendulum vibration absorption and isolation support that rubs.
The X-type anisotropy friction double pendulum vibration absorption and isolation support that the utility model provides, assembled by slide plane by upper base plate 1, upper hinged slide block 3, lower hinged slide block 4 and lower seat board 2 etc., by the design that adapts to the curved surface contacted between each component, meet the seamless contact of contact surface, and each component can according to carrying tonnage, subtract shock insulation rigidity, displacement, damping etc. and design respectively.
When bearing partial component needs to change, can independent member designs be carried out, only need meet following three conditions: (1) is affixed on upper wearing plate 5 curved surface of hinged slide block 3 end face and upper base plate groove 14 curved surface adapts; (2) lower wearing plate 6 curved surface and lower seat board groove 17 curved surface that are affixed on lower hinged slide block 4 bottom surface adapt; (3) the sphere wearing plate 7 under bottom the spherical crown sphere at hinged slide block 4 top and upper hinged slide block 3 adapts.
When meet more than three conditions, radius of curvature, the length of upper base plate groove 14, lower seat board groove 17, and upper hinged slide block 3, lower hinged slide block 4 bearing capacity size etc. all can design respectively according to subtracting shock insulation demand, then assemble, form X-type anisotropy friction double pendulum vibration absorption and isolation support.When bearing partial destruction or portions change in design, can change corresponding structure division, what achieve X-type anisotropy friction double pendulum vibration absorption and isolation support can assembled property.
The foregoing is only better possible embodiments of the present utility model.Can according to bridge earthquake protection grade and antidetonation demand, design upper base plate and lower seat board curved indentations length, radius of curvature, and the friction factor etc. of wearing plate.The size of centre of sphere slide block can design according to the demand of bearing bearing capacity, and the large I of spherical crown spherical radius designs according to rotation demand.Therefore, the equivalent structure change that all utilization the utility model manuals and accompanying drawing content are done, is all in like manner included in scope of the present utility model.
Claims (10)
1. an X-type anisotropy friction double pendulum vibration absorption and isolation support, it is characterized in that, comprise upper base plate (1), lower seat board (2), upper hinged slide block (3), lower hinged slide block (4), upper wearing plate (5), lower wearing plate (6) and sphere wearing plate (7), wherein, upper base plate (1), upper hinged slide block (3), lower hinged slide block (4) and lower seat board (2) set gradually from top to bottom, upper wearing plate (5) is arranged between upper base plate (1) and upper hinged slide block (3), lower wearing plate (6) is arranged between lower hinged slide block (4) and lower seat board (2), sphere wearing plate (7) is arranged between hinged slide block (3) and lower hinged slide block (4), the outside of upper base plate (1) and lower seat board (2) is plane, and inner side is concave curvatures, and in plane upper base plate (1) and lower seat board (2) in X-type.
2. X-type anisotropy friction double pendulum vibration absorption and isolation support according to claim 1, it is characterized in that, the concave curvatures of described upper base plate (1) and the long side bumper block (12) of upper base plate, upper base plate minor face block (13) are combined into upper base plate groove (14), and the concave curvatures of described lower seat board (2) and lower seat board long side bumper block (15), lower seat board minor face block (16) are combined into lower seat board groove (17).
3. X-type anisotropy friction double pendulum vibration absorption and isolation support according to claim 2, it is characterized in that, when designing this X-type anisotropy friction double pendulum vibration absorption and isolation support, the plane projection long side direction length of upper base plate groove (14) and upper base plate (1) is l, and short side direction length is 0.35l; Lower seat board groove (17) plane projection long side direction length is 0.8l ~ 1.2l, and short side direction length is 0.3l ~ 0.4l; Upper base plate groove (14) radius of curvature is R, and lower seat board groove (17) radius of curvature is 0.8R ~ 1.2R; Groove radius of curvature R=T
2g/4 π
2, T is the target period that bridge subtracts shock insulation direction, and g is acceleration of gravity; Bridge is subtracting the equivalent stiffness K in shock insulation direction
fps=W/R, W are the weight of bearing carrying.
4. X-type anisotropy friction double pendulum vibration absorption and isolation support according to claim 2, it is characterized in that, the top of described lower hinged slide block (4) is slide block spherical crown (10), this slide block spherical crown (10) is a convex shaped arc curved surface, upper hinged slide block (3) is hinged by spherical crown (10) with lower hinged slide block (4), forms the centre of sphere slide block (11) of bearing.
5. X-type anisotropy friction double pendulum vibration absorption and isolation support according to claim 4, it is characterized in that, described centre of sphere slide block (11) is placed between upper base plate groove (14), lower seat board groove (17), centre of sphere slide block (11) end face is identical with the radius of curvature of upper base plate groove (14), lower seat board groove (17) respectively with the radius of curvature of bottom surface, make centre of sphere slide block (11) respectively with upper base plate (1), lower seat board (2) plane-plane contact, realize smooth sliding, and stress can be avoided to concentrate.
6. X-type anisotropy friction double pendulum vibration absorption and isolation support according to claim 4, it is characterized in that, the length of side of described centre of sphere slide block (11) is 1/3 of upper base plate (1) long side direction, be highly 1/5 ~ 1/3 of centre of sphere slide block (11) length of side, centre of sphere slide block (11) can realize horizontally rotating and vertical rotating of bearing upper base plate (1) and lower seat board (2) by slide block spherical crown (10), thus realizes the seismic isolation design to all directions in plane.
7. X-type anisotropy friction double pendulum vibration absorption and isolation support according to claim 2, it is characterized in that, the long side bumper block (15) of described upper base plate long side bumper block (12), lower seat board plays slide-and-guide effect to centre of sphere slide block (11), and upper base plate long side bumper block (12), upper base plate minor face block (13), lower seat board long side bumper block (15), lower seat board minor face block (16) all can prevent centre of sphere slide block (11) landing.
8. X-type anisotropy friction double pendulum vibration absorption and isolation support according to claim 1, it is characterized in that, the top of described lower hinged slide block (4) is slide block spherical crown (10), for convex shaped arc curved surface, radius of curvature is identical with the concave circular arcs surface curvature of upper hinged slide block (3); Slide block spherical crown (10) surrounding arranges slide block block (18), prevents hinged slide block (3) landing; Above between hinged slide block (3) and slide block block (18), space of slider (19) is set, realizes bearing and indulge bridge to the vertical rotating with direction across bridge at bridge.
9. X-type anisotropy friction double pendulum vibration absorption and isolation support according to claim 1, it is characterized in that, the top of described hinged slide block (3) is convex single-curved surface, post wearing plate (5) outside it, and its radius of curvature is identical with the radius of curvature of upper base plate groove (14); The bottom of described lower hinged slide block (4) is convex single-curved surface, posts lower wearing plate (6) outside it, and its radius of curvature is identical with the radius of curvature of lower seat board groove (17).
10. X-type anisotropy friction double pendulum vibration absorption and isolation support according to claim 1, it is characterized in that, the outside of this X-type anisotropy friction double pendulum vibration absorption and isolation support is also provided with dust cover (8), and is fixed by bolt (9) and the X-type anisotropy double pendulum vibration absorption and isolation support that rubs.
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| CN201520776542.8U CN205046694U (en) | 2015-10-08 | 2015-10-08 | X type anisotropic friction double pendulum subtracts isolation bearing |
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| CN201520776542.8U CN205046694U (en) | 2015-10-08 | 2015-10-08 | X type anisotropic friction double pendulum subtracts isolation bearing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201094A (en) * | 2015-10-08 | 2015-12-30 | 中交公路长大桥建设国家工程研究中心有限公司 | X-type anisotropism friction double-pendulum vibration reduction and isolation support |
| CN110029736A (en) * | 2019-01-22 | 2019-07-19 | 上海大学 | A kind of abnormity three-dimensional shock isolation support |
| CN111021238A (en) * | 2019-12-26 | 2020-04-17 | 中交公路长大桥建设国家工程研究中心有限公司 | Ellipsoidal anisotropic friction simple pendulum support |
-
2015
- 2015-10-08 CN CN201520776542.8U patent/CN205046694U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201094A (en) * | 2015-10-08 | 2015-12-30 | 中交公路长大桥建设国家工程研究中心有限公司 | X-type anisotropism friction double-pendulum vibration reduction and isolation support |
| CN110029736A (en) * | 2019-01-22 | 2019-07-19 | 上海大学 | A kind of abnormity three-dimensional shock isolation support |
| CN110029736B (en) * | 2019-01-22 | 2021-08-31 | 上海大学 | Special-shaped three-dimensional shock insulation support |
| CN111021238A (en) * | 2019-12-26 | 2020-04-17 | 中交公路长大桥建设国家工程研究中心有限公司 | Ellipsoidal anisotropic friction simple pendulum support |
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