Shock vibration double-control three-dimensional shock insulation support

Abstract

The invention relates to a vibration double-control three-dimensional vibration isolation support which comprises an upper connecting plate, a lower connecting plate, a rubber layer connected between the upper connecting plate and the lower connecting plate, and annular steel plate layers which are wrapped in the rubber layer and are vertically distributed at intervals, and the rubber layer forms a cavity penetrating through all the annular steel plate layers in the annular interior of the annular steel plate layers. The cavity is filled with a vertical TMD structure; the upper connecting plate blocks the upper end of the cavity, the lower connecting plate blocks the lower end of the cavity, and the lower connecting plate is further provided with a spherical structure which is communicated with the interior of the cavity and protrudes downwards corresponding to the lower end of the cavity; the edge of the upper connecting plate and the edge of the lower connecting plate extend outwards relative to the rubber layer to form flanges, and connecting holes used for installing and fixing the three-dimensional shock insulation support are formed in the flanges. The vertical TMD structure is introduced into the cavity of the three-dimensional shock insulation support, the vertical TMD structure no longer bears the weight of the three-dimensional shock insulation support, and the vertical shock insulation effect is improved on the basis that horizontal shock insulation is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of seismic isolation and vibration reduction, and particularly to a three-dimensional seismic isolation bearing with dual control of seismic vibration and shock vibration. Background Art

[0002] In recent years, the superstructure buildings on subway and high-speed rail hubs have increased significantly. However, the vibrations of subways and high-speed rails have a great impact on the normal use of the superstructure buildings. In order to reduce the influence of subway or high-speed rail vibrations on the comfort of buildings and at the same time improve the seismic resistance of buildings, various types of seismic isolation bearings have been proposed in the prior art. Such as thick rubber three-dimensional seismic isolation bearings, vertically series-connected rubber bearings with butterfly springs, seismic isolation bearings combined with a helical spring system and a rubber bearing or a friction pendulum bearing, etc.

[0003] The horizontal seismic isolation technology is currently relatively mature. However, the technical difficulty of a three-dimensional seismic isolation bearing that can simultaneously achieve the functions of horizontal seismic isolation and vertical vibration reduction lies in:

[0004] 1. The horizontal seismic isolation and vertical vibration reduction functions of the seismic isolation bearing should be coordinated and not affect each other;

[0005] 2. The seismic isolation bearing should have good vertical bearing capacity, small horizontal stiffness, and large horizontal deformation capacity, and the vertical vibration reduction function should be achieved without increasing the horizontal stiffness of the bearing;

[0006] 3. The existing design has a complex structure and an unclear working mechanism.

[0007] The currently available three-dimensional seismic isolation bearings on the market are mainly the parallel or series superposition of helical springs, butterfly springs, U-shaped steel plates, etc. with laminated rubber seismic isolation bearings or friction pendulum bearings. The products have a large volume, a relatively complex structure, and the combined working performance of two or more damping mechanisms is poor. For example: in actual engineering applications, for a three-dimensional seismic isolation bearing composed of a rubber seismic isolation bearing + a spring, the main weight of the upper building is supported by the rubber bearing, and the vertical deformation of the helical spring and the butterfly spring is limited, so the damping effect in the vertical direction is very limited. Moreover, the spring itself also has horizontal stiffness, which increases the stiffness of the seismic isolation layer in the horizontal direction and has poor coordination with the horizontal deformation of the rubber seismic isolation bearing. Summary of the Invention

[0008] In order to solve the problems of low vertical vibration reduction performance, complex structure, and poor coordination between horizontal seismic isolation and vertical vibration reduction functions of the current three-dimensional seismic isolation bearings, the present invention provides a three-dimensional seismic isolation bearing with dual control of seismic vibration and shock vibration. It no longer uses helical springs and butterfly springs as vertical seismic isolation components, and introduces a vertical TMD structure into the cavity of the three-dimensional seismic isolation bearing. The vertical TMD structure no longer bears the weight of the three-dimensional seismic isolation bearing, and on the basis of achieving horizontal seismic isolation, the effect of vertical vibration reduction is improved.

[0009] The technical object of the present invention is achieved by the following technical solutions:

[0010] A vibration and shock dual-control three-dimensional isolation bearing, comprising an upper connecting plate, a lower connecting plate, a rubber layer connected between the upper connecting plate and the lower connecting plate, and annular steel plate layers vertically and spacedly distributed inside the rubber layer. The rubber layer forms a cavity penetrating through all the annular steel plate layers inside the annulus of the annular steel plate layer, and a vertical TMD structure is filled in the cavity; the upper connecting plate seals the upper end of the cavity, the lower connecting plate seals the lower end of the cavity, and the lower connecting plate is also provided with a spherical structure protruding downward and communicating with the inside of the cavity corresponding to the lower end of the cavity; the edges of the upper connecting plate and the lower connecting plate respectively extend outward relative to the rubber layer to form flanges, and connection holes for installing and fixing the three-dimensional isolation bearing are provided at the flanges.

[0011] Further, the vertical TMD structure is liquid mercury, and the liquid mercury is contained in the cavity.

[0012] Further, the outside of the liquid mercury is coated with a sealed bag, the liquid mercury is contained in the sealed bag and put into the cavity, and an air chamber cavity is formed in the sealed bag when the liquid mercury is contained in the sealed bag.

[0013] Further, the upper connecting plate and the rubber layer are vulcanized and bonded together, and the lower connecting plate and the rubber layer are vulcanized and bonded together respectively.

[0014] Further, the upper connecting plate and the rubber layer, and the lower connecting plate and the rubber layer are respectively connected and fixed by connecting pieces. The connecting pieces pass through the upper connecting plate and are in threaded cooperation with the uppermost annular steel plate layer inside the rubber layer, and the connecting pieces pass through the lower connecting plate and are in threaded cooperation with the lowermost annular steel plate layer inside the rubber layer.

[0015] Further, the lower end surface of the upper connecting plate is provided with a convex table protruding downward, the upper end surface of the lower connecting plate is provided with a convex table protruding upward, and the rubber layer is provided with concave surfaces cooperating with the convex tables corresponding to the convex table of the upper connecting plate and the convex table of the lower connecting plate.

[0016] Further, the lower end surface of the rubber layer is provided with a flange protruding downward around the edge of the cavity, and the flange is fitted and inserted into the inner wall of the spherical structure near the upper end position; sealing rings are respectively provided on the contact surfaces between the upper connecting plate and the rubber layer and between the lower connecting plate and the rubber layer, and the sealing rings are arranged in the outer area of the flange.

[0017] Further, the vertical TMD structure includes a plurality of layers of stacked lead sheets, and the stacked thickness of the lead sheets is less than the vertical depth of the cavity.

[0018] Further, a guiding device penetrating through the lead sheets is also connected between the upper connecting plate and the spherical structure in the cavity.

[0019] Further, the vertical TMD structure includes a plurality of metal particles, and the metal density of the metal particles is greater than or equal to 11 g / cm3 , metal particles are filled in the cavity and a cavity is left at a position near the upper end in the cavity.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. The present invention realizes the gravity support of the structure through the laminated rubber bearing and realizes the horizontal seismic isolation at the same time. The vertical TMD structure filled in the cavity reduces the vertical vibration. The vertical TMD structure filled in the cavity does not bear the gravity received above the three-dimensional seismic isolation bearing, and does not affect the horizontal movement of the laminated rubber bearing at all.

[0022] 2. Through the coordinated cooperation of the vertical TMD structure and the spherical structure of the lower connecting plate, when the three-dimensional seismic isolation bearing of the present application is in use, the spherical structure will preferentially receive the vertical vibration source, and after the vertical vibration source is transmitted to the vertical TMD structure, it will quickly enter the vertical vibration reduction working state.

[0023] 3. In terms of structural design, the structure of the three-dimensional seismic isolation bearing of the present application is more concise. Compared with the complex mechanical mechanism design, it can reduce the risk of damage during use and ensure the service life. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the three-dimensional seismic isolation bearing in Embodiment 1 of the present invention.

[0025] Figure 2 It is a schematic longitudinal sectional view of the three-dimensional seismic isolation bearing in Embodiment 1 of the present invention.

[0026] Figure 3 It is a schematic structural diagram of the three-dimensional seismic isolation bearing with a square annular steel plate layer in Embodiment 1 of the present invention.

[0027] Figure 4 It is a schematic diagram of the partially cut-open structure of the three-dimensional seismic isolation bearing in Embodiment 2 of the present invention.

[0028] Figure 5 It is a schematic longitudinal sectional view of the three-dimensional seismic isolation bearing in Embodiment 2 of the present invention.

[0029] Figure 6 It is a schematic longitudinal sectional view of the three-dimensional seismic isolation bearing in Embodiment 3 of the present invention.

[0030] Figure 7 It is a schematic diagram of the setting of the guiding device in Embodiment 3 of the present invention.

[0031] Figure 8 It is a schematic longitudinal sectional view of the three-dimensional seismic isolation bearing in Embodiment 4 of the present invention.

[0032] Figure 9 It is a schematic diagram of the use of the three-dimensional seismic isolation bearing in Embodiment 5 of the present invention.

[0033] Figure 10 It is a schematic cross-sectional view of the usage state of the three-dimensional seismic isolation bearing in Embodiment 5 of the present invention.

[0034] In the figure:

[0035] 1. Upper connecting plate; 2. Lower connecting plate; 3. Rubber layer; 4. Annular steel plate layer; 5. Cavity; 6. Spherical structure; 7. Flange; 8. Connecting hole; 9. Sealing bag; 10. Air chamber cavity; 11. Connecting piece; 12. Convex table surface; 13. Flange; 14. Sealing ring; 15. Lead sheet; 16. Guiding device; 17. Metal particles; 18. Superstructure; 19. Substructure; 20. Supporting spherical surface. Specific embodiments

[0036] The technical solutions of the present invention will be further described below in conjunction with specific embodiments:

[0037] Embodiment 1

[0038] A vibration and shock dual-control three-dimensional seismic isolation bearing, as shown in Figure 1 and Figure 2 , includes an upper connecting plate 1, a lower connecting plate 2, a rubber layer 3 connected between the upper connecting plate 1 and the lower connecting plate 2, and annular steel plate layers 4 vertically and spacedly distributed inside the rubber layer 3. The rubber layer 3 forms a cavity 5 penetrating all the annular steel plate layers 4 inside the ring of the annular steel plate layer 4. A vertical TMD structure is filled in the cavity 5. In this embodiment, the vertical TMD structure is liquid mercury, and the liquid mercury is contained in the cavity 5.

[0039] The upper connecting plate 1 seals the upper end of the cavity 5, and the lower connecting plate 2 seals the lower end of the cavity 5. The lower connecting plate 2 is also provided with a spherical structure 6 that communicates with the inside of the cavity 5 and protrudes downward corresponding to the lower end of the cavity 5; the edges of the upper connecting plate 1 and the lower connecting plate 2 respectively extend outward relative to the rubber layer 3 to form flanges 7, and connecting holes 8 for installing and fixing the three-dimensional seismic isolation bearing are provided at the flanges 7.

[0040] Preferably, in order to increase safety, the liquid mercury is externally coated with a sealing bag 9. After the liquid mercury is contained in the sealing bag 9 and then placed in the cavity 5, an air chamber cavity 10 is formed in the sealing bag 9 when the liquid mercury is contained in the sealing bag 9, that is, the sealing bag 9 cannot be fully filled with liquid mercury. The sealing bag 9 is made of high molecular flexible materials such as polypropylene (PP) material, polycarbonate (PC) material, polyethylene (PE) material, etc.

[0041] In this embodiment, the upper connecting plate 1 and the lower connecting plate 2 are respectively of steel plate structure. The outside of the rubber layer 3 presents a cylindrical structure, and the annular steel plate layer 4 is of a circular ring-shaped steel plate structure. The upper connecting plate 1 and the upper end surface of the rubber layer 3 are vulcanized and bonded, and the lower connecting plate 2 and the lower end surface of the rubber layer 3 are vulcanized and bonded.

[0042] The outside of the rubber layer 3 can also be presented as a cubic structure with a square horizontal cross-section, and the corresponding annular steel plate layer is an annular steel plate with a square outer edge and a circular inner ring, as Figure 3 shown.

[0043] The upper connecting plate 1 and the lower connecting plate 2 can be square steel plates, as Figure 3 shown; they can also be circular steel plates, as Figure 1 shown.

[0044] Embodiment 2

[0045] A vibration and shock dual-control three-dimensional isolation bearing, as Figure 4 and Figure 5 shown, includes an upper connecting plate 1, a lower connecting plate 2, a rubber layer 3 connected between the upper connecting plate 1 and the lower connecting plate 2, and annular steel plate layers 4 vertically and spacedly distributed inside the rubber layer 3. The rubber layer 3 forms a cavity 5 penetrating through all the annular steel plate layers 4 inside the ring of the annular steel plate layer 4, and a vertical TMD structure is filled in the cavity 5. In this embodiment, the vertical TMD structure is liquid mercury, and the liquid mercury is contained in the cavity 5.

[0046] The upper connecting plate 1 seals the upper end of the cavity 5, and the lower connecting plate 2 seals the lower end of the cavity 5. The lower connecting plate 2 is also provided with a spherical structure 6 corresponding to the lower end of the cavity 5 and communicating with the inside of the cavity 5 and protruding downward; the edges of the upper connecting plate 1 and the lower connecting plate 2 respectively extend outward relative to the rubber layer 3 to form flanges, and connection holes 8 for installing and fixing the three-dimensional isolation bearing are provided at the flanges.

[0047] Preferably, in order to increase safety, the liquid mercury is externally coated with a sealing bag 9, and after the liquid mercury is contained in the sealing bag 9, it is placed in the cavity 5. When the liquid mercury is contained in the sealing bag 9, an air chamber cavity 10 is formed in the sealing bag 9.

[0048] In this embodiment, the upper connecting plate 1 and the lower connecting plate 2 are respectively of steel plate structures, the outside of the rubber layer 3 is presented as a cylindrical structure, and the annular steel plate layer 4 is a ring-shaped steel plate structure. The upper connecting plate 1 and the rubber layer 3 are connected and fixed through a connecting piece 11, and the lower connecting plate 2 and the rubber layer 3 are connected and fixed through a connecting piece 11. The upper connecting plate 1 and the lower connecting plate 2 are respectively provided with counterbore through holes corresponding to the connecting piece 11. One end of the connecting piece 11 is provided with an external thread. The end of the connecting piece 11 with the external thread at the upper connecting plate 1 passes through the counterbore through hole and then inserts into the rubber layer 3 and is in threaded cooperation with the uppermost annular steel plate layer 4 inside the rubber layer 3. The end of the connecting piece 11 with the external thread at the lower connecting plate 2 passes through the counterbore through hole and then inserts into the rubber layer 3 and is in threaded cooperation with the lowermost annular steel plate layer 4 inside the rubber layer 3.

[0049] Preferably, the lower end face of the upper connecting plate 1 is provided with a convex table surface 12 protruding downward, and the upper end face of the lower connecting plate 2 is provided with a convex table surface 12 protruding upward. The rubber layer 3 is correspondingly provided with a concave surface matching the convex table surface 12 of the upper connecting plate 1 and the convex table surface 12 of the lower connecting plate 12.

[0050] In order to further increase the sealing performance of the cavity 5, the lower end face of the rubber layer 3 is provided with a flange 13 protruding downward around the edge of the cavity 5, and the flange 13 is fitted and inserted into the inner wall of the spherical surface structure 6 near the upper end position; sealing rings 14 are respectively provided on the contact surfaces between the upper connecting plate 1 and the rubber layer 3 and between the lower connecting plate 2 and the rubber layer 3. The sealing rings 14 are arranged in the outer area of the flange 13, and the sealing rings 14 are, for example, O-shaped rubber rings.

[0051] Preferably, a circle of uniformly distributed connecting members 11 are respectively arranged within and outside the sealing ring 14.

[0052] Embodiment 3

[0053] A vibration and shock dual-control three-dimensional isolation bearing, as Figure 6 shown, includes an upper connecting plate 1, a lower connecting plate 2, a rubber layer 3 connected between the upper connecting plate 1 and the lower connecting plate 2, and annular steel plate layers 4 vertically and spacedly distributed within the rubber layer 3. The rubber layer 3 forms a cavity 5 penetrating all the annular steel plate layers 4 inside the ring of the annular steel plate layer 4. A vertical TMD structure is filled in the cavity 5. The vertical TMD structure includes a plurality of layers of stacked lead sheets 15. The stacked thickness of the lead sheets 15 is less than the vertical depth of the cavity 5, and the diameter of the lead sheets 15 is less than the inner diameter of the cavity 5. The vertical depth of the cavity 5 refers to the height between above the lower connecting plate 2 and below the upper connecting plate 1.

[0054] The upper connecting plate 1 seals the upper end of the cavity 5, and the lower connecting plate 2 seals the lower end of the cavity 5. The lower connecting plate 2 is further provided with a spherical surface structure 6 protruding downward and communicating with the inside of the cavity 5 corresponding to the lower end of the cavity; the edges of the upper connecting plate 1 and the lower connecting plate 2 respectively extend outward relative to the rubber layer 3 to form flanges, and connection holes 8 for installing and fixing the three-dimensional isolation bearing are provided at the flanges.

[0055] Preferably, a guiding device 16 penetrating the lead sheets 15 is further connected between the upper connecting plate 1 and the spherical surface structure 6 in the cavity 5, as Figure 7 shown.

[0056] Exemplarily, the guiding device 16 can be a rigid guiding rod, a flexible rope, etc. The rigid guiding rod can be a stainless steel metal rod, and the flexible rope can be a steel wire rope, a rubber rope, a fiber rope, etc. It should be noted that when the rigid guiding rod is used as the guiding device, a length deformation allowance should be reserved. For example, springs are provided at at least one end of the rigid guiding rod so that it can adapt to the deformation when the rubber layer deforms; when a steel wire rope is used as the guiding device, a length deformation allowance should be reserved, such as adjusting the tension of the steel wire rope to avoid damage caused by excessive tension of the steel wire rope when the rubber layer deforms.

[0057] Embodiment 4

[0058] A vibration and shock dual-control three-dimensional isolation bearing, comprising an upper connecting plate 1, a lower connecting plate 2, a rubber layer 3 connected between the upper connecting plate 1 and the lower connecting plate 2, and annular steel plate layers 4 vertically and spacedly distributed inside the rubber layer 3. The rubber layer 3 forms a cavity penetrating all the annular steel plate layers 4 inside the ring of the annular steel plate layer 4. A vertical TMD structure is filled in the cavity 5. The vertical TMD structure includes a number of metal particles 17, and the metal density of the metal particles 17 is greater than or equal to 11 g / cm 3 , the metal particles 17 are such as lead particles, and the metal particles 17 are filled in the cavity and a cavity is left at a position near the upper end inside the cavity, as Figure 8 shown. The upper connecting plate 1 seals the upper end of the cavity 5, the lower connecting plate 2 seals the lower end of the cavity 5, and the lower connecting plate 2 is also provided with a spherical structure 6 protruding downward and communicating with the inside of the cavity 5 at the corresponding lower end of the cavity; the edges of the upper connecting plate 1 and the lower connecting plate 2 respectively extend outward relative to the rubber layer 3 to form flanges, and connection holes 8 for installing and fixing the three-dimensional isolation bearing are provided at the flanges.

[0059] Embodiment 5

[0060] A vibration and shock dual-control three-dimensional isolation bearing as in the above embodiment, when in use, as Figure 9 and Figure 10 shown, the upper connecting plate is connected to the superstructure 18 by bolts passing through the connection holes of the upper connecting plate 1, and the lower connecting plate is connected to the substructure 19 by bolts passing through the connection holes of the lower connecting plate 2. The superstructure 18 and the substructure 19 are such as support piers. Threaded sleeves matching the bolts can be embedded in the superstructure 18 and the substructure 19. A support spherical surface 20 concave relative to the upper end surface of the substructure 19 is also provided on the surface of the substructure 19 in contact with the lower connecting plate. The support spherical surface 20 is rigidly attached to the spherical structure 6 of the lower connecting plate, and the support spherical surface can adopt a steel gasket made of the same material as the lower support plate.

[0061] The two core elements of TMD vibration reduction design are the mass ratio and the frequency ratio. Compared with the TMD vibration reduction at the top of the building, in this application, the vibration sources are dispersed on each column, so the demand for the TMD mass on each column is very small, and the vertical TMD structure can just be filled in the cavity of the isolation bearing to achieve vertical vibration reduction.

[0062] The control principle of the vertical TMD structure for vibration reduction includes three main parts:

[0063] 1. Dynamic vibration absorption mechanism

[0064] By adjusting the mass and natural frequency of the vertical TMD structure to be close to the natural frequency of the main structure, a tuned state is formed. When the main structure is affected by the vibration of the subway or high-speed rail and the main structure above the isolation bearing vibrates, the vertical TMD structure generates an inertial force through anti-phase motion to offset the vibration energy of the main structure.

[0065] 2. Energy consumption vibration reduction mechanism

[0066] The vibration energy of the main structure is dissipated through the work done by the inertial force of the vertical TMD structure through energy conversion and resonance suppression: the inertial force of the vertical TMD structure is opposite to the vibration direction of the main structure, which can directly partially or completely offset the movement of the main structure; the vertical TMD structure converts the vibration energy into heat energy to reduce the vibration response of the main structure;

[0067] 3. Resonance suppression

[0068] When the external excitation frequency received by the main structure is close to its natural frequency, resonance may occur. The TMD is tuned to the same frequency and excites its strong vibration under resonance conditions, significantly reducing the amplitude of the main structure.

[0069] The effective design of TMD depends on the optimal design of the following parameters:

[0070] 1. Mass ratio

[0071] The TMD mass is usually 1% - 5% of the main structure mass. The larger the mass, the better the vibration reduction effect and the higher the space requirement. Specifically, the mass of the TMD in the cavity can be adjusted according to the mass of different buildings and the vibration frequencies of different vibration sources. The cavity can adjust its diameter or the size of the protruding spherical surface under the bearing as needed.

[0072] 2. Frequency ratio

[0073] Usually, the frequency ratio is set to be close to 1, such as 0.95 - 1.05, to achieve the best tuning effect.

[0074] 3. Damping ratio

[0075] Excessive damping will reduce the energy transfer efficiency, while too low damping may cause the TMD to resonate on its own. Therefore, it is necessary to optimize and confirm according to the actual application scenario.

[0076] This embodiment is only a further explanation of the present invention and not a limitation thereof. After reading this specification, those skilled in the art can make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A vibration and shock dual-control three-dimensional isolation bearing, characterized in that, It includes an upper connecting plate, a lower connecting plate, a rubber layer connected between the upper connecting plate and the lower connecting plate, and annular steel plate layers vertically and spacedly distributed within the rubber layer. A cavity penetrating through all the annular steel plate layers is formed inside the annular shape of the annular steel plate layers in the rubber layer, and a vertical TMD structure is filled in the cavity; the upper connecting plate seals the upper end of the cavity, the lower connecting plate seals the lower end of the cavity, and a spherical structure protruding downward and communicating with the inside of the cavity is further provided at the lower connecting plate corresponding to the lower end of the cavity; the edges of the upper connecting plate and the lower connecting plate respectively extend outward relative to the rubber layer to form flanges, and connection holes for installing and fixing the three-dimensional seismic isolation bearing are provided at the flanges.

2. The triple - control three - dimensional seismic isolation bearing according to claim 1, wherein The vertical TMD structure is liquid mercury, and the liquid mercury is contained in the cavity.

3. The triple - control three - dimensional seismic isolation bearing according to claim 2, characterized in that, The outside of the liquid mercury is coated with a sealed bag, and the liquid mercury is contained in the sealed bag and placed in the cavity. When the liquid mercury is contained in the sealed bag, an air chamber cavity is formed in the sealed bag.

4. A vibration and shock dual-controlled three-dimensional isolation bearing according to claim 2 or 3, characterized in that, The upper connecting plate and the rubber layer are vulcanized and bonded together, and the lower connecting plate and the rubber layer are vulcanized and bonded together respectively.

5. The triple - control three - dimensional seismic isolation bearing according to claim 2 or 3, characterized in that, The upper connecting plate and the rubber layer, and the lower connecting plate and the rubber layer are respectively connected and fixed by connecting pieces. The connecting pieces pass through the upper connecting plate and are in threaded cooperation with the uppermost annular steel plate layer in the rubber layer, and the connecting pieces pass through the lower connecting plate and are in threaded cooperation with the lowermost annular steel plate layer in the rubber layer.

6. The triple - control three - dimensional seismic isolation bearing according to claim 5, characterized in that, A convex platform protruding downward is provided on the lower end surface of the upper connecting plate, and a convex platform protruding upward is provided on the upper end surface of the lower connecting plate. The rubber layer is provided with concave surfaces cooperating with the convex platforms corresponding to the convex platform of the upper connecting plate and the convex platform of the lower connecting plate.

7. The three-dimensional seismic and vibration isolation bearing with dual control according to claim 6, characterized in that, A flange protruding downward is provided on the lower end surface of the rubber layer in a circle at the edge of the cavity, and the flange is fitted and inserted into the inner wall of the spherical structure near the upper end position; sealing rings are respectively provided on the contact surfaces between the upper connecting plate and the rubber layer and between the lower connecting plate and the rubber layer, and the sealing rings are arranged in the outer area of the flange.

8. The three-dimensional seismic and vibration isolation bearing with dual control according to claim 1, characterized in that The vertical TMD structure includes several layers of lead sheets stacked, and the stacked thickness of the lead sheets is less than the vertical depth of the cavity.

9. The triple - control three - dimensional seismic isolation bearing according to claim 8, wherein, A guiding device penetrating through the lead sheets is further connected between the upper connecting plate and the spherical structure in the cavity.

10. A vibration and shock dual-control three-dimensional isolation bearing according to claim 1, characterized in that, The vertical TMD structure includes a number of metal particles, and the metal density of the metal particles is greater than or equal to 11 g / cm 3 , and the metal particles are filled in the cavity and a cavity is left at a position near the upper end in the cavity.

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