SMA-magnetic suspension variable-curvature friction pendulum shock insulation support

Abstract

The SMA-magnetic suspension variable-curvature friction pendulum shock insulation support comprises a support body, and the support body is an inner hollow cylinder and comprises an upper bearing plate and a lower bearing plate which are fixedly connected through a dustproof plate; a first spherical groove is formed in the bottom end of the upper bearing plate, and a second spherical groove and an annular armature located on the outer side of the second spherical groove are installed at the top end of the lower bearing plate. The second spherical groove is matched with the first spherical groove, and a sliding block is arranged between the first spherical groove and the second spherical groove; a plurality of electromagnets arranged around the axis of the sliding block and a plurality of shape memory alloy assemblies arranged between the electromagnets and the inner wall of the dustproof plate around the axis of the sliding block are arranged between the annular armature and the upper bearing plate. According to the technical scheme, the device has the efficient shock insulation effect and the automatic adjusting capacity and is suitable for various complex engineering environments.

Description

Technical Field

[0001] The invention belongs to the technical field of building structures, and in particular relates to an SMA-magnetic suspension variable curvature friction pendulum seismic isolation support. Background Art

[0002] Higher requirements have been put forward for earthquake resistance. Earthquakes, as a sudden and destructive natural disaster, pose a major threat to the safety of building structures. Therefore, how to improve the earthquake resistance of buildings under earthquakes and reduce structural damage and secondary disasters has become one of the core research topics in the field of construction engineering.

[0003] Traditional seismic design methods mostly rely on the stiffness and strength of the structure itself, and resist earthquake effects by improving material properties and increasing structural bearing capacity. However, this design concept has great limitations under large earthquakes. Not only will it lead to a significant increase in the cost of buildings, but it may still suffer serious damage in the face of strong earthquakes, and it cannot effectively protect the safety of life and property. Therefore, seismic isolation technology came into being. The basic principle of seismic isolation technology is to convert the rigid connection between the building structure and the foundation into a flexible connection by setting seismic isolation bearings, thereby reducing the transmission of seismic energy and reducing the seismic response of the superstructure. At present, seismic isolation technology has become an efficient means of earthquake resistance and disaster reduction, and is widely used in important projects such as high-rise buildings, bridges, and nuclear power plants.

[0004] In the research and development of seismic isolation bearings, friction pendulum bearings have attracted wide attention due to their good seismic isolation effect and strong applicability. Traditional friction pendulum bearings use slip and curved sliding to dissipate seismic energy, but they may have insufficient performance when dealing with large-amplitude earthquakes, especially when the span of a building or bridge is large, the seismic isolation effect of ordinary friction pendulum bearings is limited. Summary of the invention

[0005] The purpose of the present invention is to provide a SMA-magnetic suspension variable curvature friction pendulum isolation support to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above-mentioned object, the present invention provides an SMA-magnetic suspension variable curvature friction pendulum seismic isolation support, comprising a support body, wherein the support body is an inner hollow cylinder, comprising an upper bearing plate and a lower bearing plate fixedly connected by a dustproof plate;

[0007] The bottom end of the upper bearing plate is provided with a first spherical groove, and the top end of the lower bearing plate is provided with a second spherical groove and an annular armature located outside the second spherical groove; the second spherical groove is provided in cooperation with the first spherical groove, and a slider is provided between the first spherical groove and the second spherical groove;

[0008] A plurality of electromagnets are arranged around the axis of the slider between the annular armature and the upper bearing plate, and a plurality of shape memory alloy components are arranged around the axis of the slider between the electromagnets and the inner wall of the dustproof plate.

[0009] Optionally, a sensor unit is installed on one side of the upper bearing plate.

[0010] Optionally, the sensor unit includes a displacement sensor and an acceleration sensor.

[0011] Optionally, the slider includes a slider trunk, and a plurality of slider branches evenly distributed in a circumferential direction are installed on the outer wall of the slider trunk. The top of the slider trunk is arranged in the first spherical groove, and the end of each slider branch away from the slider trunk is arranged in the second spherical groove.

[0012] Optionally, a first damper is provided between the top end of the slider trunk and the first spherical groove.

[0013] Optionally, a second damper is provided between one end of each slider branch away from the slider main trunk and the second spherical groove.

[0014] Optionally, a friction material is arranged between one end of each sliding block branch away from the sliding block main body and the second damper.

[0015] Optionally, the friction material is polytetrafluoroethylene.

[0016] The technical effects of the present invention are:

[0017] Compared with traditional bearings, the SMA-magnetic levitation variable curvature friction pendulum bearing provided by the present invention has significant advantages in active controllability, seismic isolation performance, durability, safety and economic benefits. With the increasing requirements for building seismic performance and sustainable technology, SMA-magnetic levitation variable curvature friction pendulum bearings will be more widely used in future seismic projects. The bearing structure of the present invention is scientifically and reasonably designed, with efficient seismic isolation effect and autonomous adjustment ability. Its working principle is feasible and applicable to a variety of complex engineering environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 This is a rendering of a facade component in an embodiment of the present invention;

[0021] Figure 2 This is a front elevation effect diagram in an embodiment of the present invention;

[0022] Figure 3 This is a tree-shaped bifurcated slider effect diagram in an embodiment of the present invention;

[0023] Figure 4 This is a rendering of the electromagnet and shape memory alloy in an embodiment of the present invention;

[0024] Figure 5 is a diagram showing the effect of a damper in an embodiment of the present invention;

[0025] Figure 6 This is a rendering of a dustproof plate in an embodiment of the present invention;

[0026] Figure 7 It is a top view of the lower sliding groove, the armature, and the lower bearing plate in the embodiment of the present invention;

[0027] Figure 8 This is a rendering of the lower sliding groove, armature, and lower bearing plate in an embodiment of the present invention.

[0028] Explanation of reference numerals: 1. Upper bearing plate; 2. Upper sliding groove; 3. Damper; 4. Tree-shaped bifurcated slider; 5. Friction material; 6. Shape memory alloy; 7. U-shaped electromagnet; 8. Dustproof plate; 9. Lower sliding groove; 10. Armature; 11. Lower bearing plate; 12. Sensor. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element in the middle; when an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an element in the middle at the same time; the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only;

[0032] The words “include,” “including,” “have,” “contain,” etc. used in this article are open-ended terms, meaning including but not limited to.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] Embodiment 1

[0036] like Figure 1-Figure 8 As shown, in this embodiment, an SMA-magnetic levitation variable curvature friction pendulum seismic isolation bearing is provided, including a bearing body, which is an inner hollow cylinder, including an upper bearing plate 1 and a lower bearing plate 11 fixedly connected by a dustproof plate 8; the bottom end of the upper bearing plate 1 is provided with a first spherical groove, and the top end of the lower bearing plate 11 is provided with a second spherical groove and an annular armature located outside the second spherical groove; the second spherical groove is arranged in cooperation with the first spherical groove, and a slider is arranged between the first spherical groove and the second spherical groove; between the annular armature and the upper bearing plate 1 are a plurality of electromagnets arranged around the axis of the slider, and a plurality of shape memory alloy components arranged around the axis of the slider between the electromagnet and the inner wall of the dustproof plate 8.

[0037] With the rapid development of global construction engineering technology, the height, volume and complexity of buildings are increasing day by day, especially in important projects such as bridges, super high-rise buildings and long-span structures.

[0038] In order to solve this problem, researchers have proposed a variety of improvement plans. The introduction of SMA (shape memory alloy) and magnetic levitation technology in this regard has provided new ideas for optimizing the performance of seismic isolation bearings.

[0039] SMA materials have unique shape memory effect and superelasticity, which can restore to their original shape under large strains, greatly improving the resilience and seismic performance of the structure. After the introduction of SMA, the seismic isolation bearing can more actively adjust the displacement under the action of earthquakes and enhance the self-recovery ability of the structure. In addition, the application of magnetic levitation technology can reduce mechanical friction and wear and improve the durability and stability of the system. By combining SMA and magnetic levitation technology to design a variable curvature friction pendulum seismic isolation bearing, a wider range of seismic isolation frequencies can be achieved, thereby improving the overall performance of the seismic isolation system.

[0040] In this context, the SMA-magnetic suspension variable curvature friction pendulum isolation bearing was proposed, which not only inherited the isolation advantages of the traditional friction pendulum bearing, but also further improved the isolation effect and durability of the bearing through the active control of SMA and the frictionless characteristics of magnetic suspension. The core concept of this bearing is to utilize the superelasticity of SMA materials and the friction reduction ability of magnetic suspension technology, optimize the sliding characteristics through variable curvature design, and thus provide excellent isolation performance under various earthquake conditions.

[0041] The research and development of this technology has important practical significance and application prospects. First, it provides a more efficient earthquake-resistant solution for high-rise buildings, large-span structures and bridge projects; second, the active adjustment performance of the support enables it to adapt to earthquake waves of different intensities, effectively reducing the displacement response and acceleration response of the structure; finally, by optimizing the design of the seismic isolation system, the maintenance and replacement costs of the project can be significantly reduced, extending the service life of the building.

[0042] The SMA-magnetic suspension variable curvature friction pendulum seismic isolation support of this embodiment is composed of an upper bearing plate 1, a lower bearing plate 11, a tree-shaped bifurcated slider 4, a friction material 5, a damper 3, a U-shaped electromagnet 7, an armature 10, a shape memory alloy, a dust plate 8, a sensor 12 and a control system. The following bearing plate 11, armature 10, tree-shaped bifurcated slider 4, friction material 5, damper 3, upper bearing plate 1, U-shaped electromagnet 7, shape memory alloy, sensor 12, control system, and dust plate 8 are sequentially installed.

[0043] Working principle: The friction pendulum structure adapts to different earthquake intensities through variable curvature design, converts earthquake energy into sliding and swinging to reduce the impact of earthquakes on buildings; after the sensor 12 detects a large displacement of the support, it starts the magnetic levitation system, which can not only reduce the impact of seismic motion on the superstructure but also reduce sliding wear and provide additional restoring force to extend the life of the support; the SMA material uses its superelasticity and self-resetting properties to dissipate energy at the epicenter and restore the support to its initial state after the earthquake to prevent permanent deformation.

[0044] Workflow: ① Earthquake triggering stage: When the building is subjected to an earthquake, the friction pendulum structure of the seismic isolation bearing allows the upper structure to produce horizontal slip and absorb the seismic energy. At this time, the variable curvature design of the bearing begins to play a role, and by adjusting the friction force, the bearing has the ability to adaptively adjust to earthquakes of different intensities. Smaller earthquake displacements trigger slip in low curvature areas, while stronger earthquakes trigger larger slips, allowing the bearing to adapt to different earthquake intensities.

[0045] ② Restoration force of SMA module: During the sliding process, the SMA module integrated in the support is affected by the displacement and generates restoring force. The superelastic properties of SMA material enable it to automatically reset after deformation, reduce residual displacement, and absorb part of the seismic energy through its high energy dissipation capacity, further reducing the seismic response of the superstructure.

[0046] ③ Friction reduction of magnetic levitation module: During the earthquake slip process, the magnetic levitation module uses magnetic force to make the support produce a suspension effect, reducing the friction loss in the friction pendulum structure. This non-contact friction control not only enhances the seismic isolation effect, but also extends the service life of the support.

[0047] ④Energy dissipation and displacement control: During the entire earthquake, the SMA and friction pendulum structure jointly absorb seismic energy and limit displacement. The variable curvature design in the bearing further optimizes the energy dissipation path, allowing the bearing to automatically adjust the slip path under different earthquake intensities to disperse the energy more evenly.

[0048] ⑤ Automatic reset after earthquake: When the earthquake is over, the SMA module will perform its self-reset function and restore the support to its initial position through its superelasticity. At the same time, the magnetic levitation effect helps reduce the friction resistance during the recovery process, ensuring a smoother reset, so that the building can return to normal and ensure the continued safety of the structure.

[0049] ⑥ Monitoring and detection: The seismic isolation bearing is usually equipped with a sensor 12 to monitor the displacement and mechanical state during an earthquake, and provide real-time feedback information for detecting the state and health of the bearing to facilitate subsequent maintenance.

[0050] Material selection and preparation:

[0051] The upper bearing plate 1, the lower bearing plate 11, and the dustproof plate 8 are made of high-strength steel or aluminum alloy materials to ensure sufficient bearing capacity and corrosion resistance.

[0052] Shape memory alloy (SMA) material: Select suitable SMA materials, such as nickel-titanium alloy or copper-based alloy, to ensure that it has good shape memory effect and superelasticity, and can undergo phase change and return to its original shape when subjected to force.

[0053] Magnetic levitation system materials: The magnetic levitation part adopts electromagnets and armatures 10 to ensure the stability of the electromagnetic field and the levitation effect.

[0054] Sliding surface material of the friction pendulum: Select materials with excellent wear resistance and durability. The sliding surface uses polytetrafluoroethylene (PTFE) or other composite materials with low friction coefficient to ensure smooth sliding of the friction pendulum. The supporting structure of the friction pendulum is made of steel or other metals.

[0055] Bearing structure material: The upper and lower bearing plates 11, the shell and other parts of the support should be made of high-strength materials, such as high-strength steel or aluminum alloy, which can withstand large loads and have corrosion resistance.

[0056] Damper 3: Select materials with good damping properties such as viscoelastic materials and magnetorheological fluid according to design requirements.

[0057] Sensor 12 and control system: Purchase high-precision displacement sensor 12, acceleration sensor 12 and matching control system to ensure real-time monitoring and feedback.

[0058] Processing of friction pendulum components: manufacturing the sliding surface and supporting structure of the friction pendulum to ensure that the sliding surface has good wear resistance and low friction coefficient. Processing the sliding surface of the sliding pendulum with variable curvature to adapt to the change of stiffness under different displacement amplitudes.

[0059] Processing of sliding surface with variable curvature: Use precision processing equipment to process the sliding surface of the friction pendulum according to the design requirements to ensure that its curvature can be adjusted with the displacement. This part requires high processing accuracy, especially the smooth transition of the sliding surface curvature change area.

[0060] Friction layer coating: A layer of low friction material 5, such as PTFE, is applied to the sliding surface to ensure that the friction during sliding is reduced. The thickness and uniformity of the coating should be strictly controlled to ensure the consistency of sliding performance.

[0061] Processing of SMA components: Processing SMA alloy into components of specified shapes to ensure that they can deform and return to their original shape after being subjected to force. Ensure that the SMA components are tightly integrated with the friction pendulum system and can effectively participate in stiffness adjustment.

[0062] SMA component molding: According to the design requirements, the SMA material is made into a specific shape, such as a rod or a sheet, through mechanical processing or heat treatment. During this process, it is necessary to control the phase change temperature and memory effect of the material.

[0063] Heat treatment adjustment: Proper heat treatment of SMA components allows them to maintain good shape memory properties when heated or stressed, and ensures that they can provide effective mechanical properties during earthquakes.

[0064] Assembly of the magnetic suspension system: Ensure the arrangement of the rare earth permanent magnets to form a stable suspension force field. Install the magnetic suspension assembly at the appropriate position between the bearing plate and the friction pendulum to provide frictionless support.

[0065] Magnetic element installation: Magnetic materials are fixed at specific locations inside the support so that they can form a stable magnetic field. These magnetic elements must be evenly distributed to ensure that the support remains in a stable suspension state during an earthquake.

[0066] Debugging of electromagnetic suspension system: If an actively controlled magnetic suspension system is used, it is necessary to install the electromagnetic coil and control system, and debug the current and magnetic field strength to ensure that the suspension effect meets the design requirements.

[0067] Processing of the upper and lower bearing plates 11 of the support: According to the requirements of the building structure design, high-precision processing is carried out to ensure seamless connection with the building superstructure and foundation. Anti-corrosion treatment is carried out on the surface of the bearing plate to extend its service life.

[0068] Manufacturing of the upper and lower bearing plates 11: The upper and lower bearing plates 11 are the main bearing parts of the support, and are usually formed by casting or welding. The plate surface should be heat treated to improve its strength and fatigue resistance.

[0069] Installation and connection hole processing: Drill holes on the bearing plate to facilitate connection with the superstructure and foundation. The hole positions must be accurately positioned according to the design.

[0070] The overall assembly steps of the support include:

[0071] Bottom structure installation: fix the lower bearing plate 11 to the foundation to ensure that it is firmly connected to the foundation.

[0072] Installation of the friction pendulum system: Install the friction pendulum assembly on the lower bearing plate 11, and adjust the contact surface between the sliding surface and the lower bearing plate 11 to ensure smooth sliding. Install the variable curvature sliding surface to match the bottom support structure of the friction pendulum.

[0073] SMA assembly installation: Install the SMA component into the key position of the support for stiffness adjustment and fix it by welding or fasteners. The SMA component should be closely matched with the friction pendulum system to ensure that it can play a role in stiffness adjustment and self-recovery when subjected to force.

[0074] Installation of magnetic suspension system: The magnetic suspension element is installed at the bottom or middle part of the friction pendulum system to ensure that the friction pendulum can maintain a stable suspension state during an earthquake. For an actively controlled magnetic suspension system, a sensor 12 and a controller need to be further installed and connected to an external control system.

[0075] Installation of the upper bearing plate 1: Install the upper bearing plate 1 to the top of the friction pendulum system to ensure that it can withstand the load from the upper structure and work in coordination with the friction pendulum system.

[0076] Installation of damper 3: According to the design requirements, the damper 3 is embedded between the friction pendulum system and the bearing plate, and the damping is adjusted to meet the needs of earthquake energy dissipation.

[0077] Sensor 12 arrangement: Install displacement, acceleration, temperature and other sensors 12 at key positions of the support to monitor the status of the support in real time. Connect the sensors 12 to the control system to ensure that the parameters of the SMA component or magnetic suspension system can be automatically adjusted during an earthquake.

[0078] Control system debugging: Connect the sensor 12 with the intelligent control system of the support, and debug the control system so that it can automatically adjust the stiffness and displacement response of the support according to the data of the sensor 12 to achieve the active seismic isolation function.

[0079] Static loading test: Perform static load test on the assembled bearing to check its bearing capacity and stability to ensure that it can meet the design requirements.

[0080] Dynamic simulation test: Use an earthquake simulation table to conduct dynamic tests on the bearings to verify their seismic isolation effects under earthquakes of different intensities, especially the adaptive adjustment capabilities of the friction pendulum system and SMA components.

[0081] Installation and commissioning: The bearing is transported to the construction site and installed according to the design requirements. The upper and lower bearing plates 11 of the bearing are fixed to the upper structure and foundation through the reserved holes. After the installation is completed, on-site commissioning is carried out, including secondary calibration of the sensor 12 and the control system, to ensure that the bearing can play its designed performance in actual use.

[0082] Maintenance and care: The components of the support (such as the friction layer, SMA components and magnetic suspension system) need to be regularly inspected and maintained to ensure their long-term seismic isolation effect. In particular, the friction pendulum sliding surface and magnetic suspension system should be cleaned and lubricated regularly to prevent wear and performance degradation.

[0083] Compared with traditional bearings, the SMA-magnetic levitation variable curvature friction pendulum bearing of this embodiment has significant advantages in active control, seismic isolation performance, durability, safety and economic benefits. With the increasing requirements for building seismic performance and sustainable technology, the SMA-magnetic levitation variable curvature friction pendulum bearing will be more widely used in future seismic projects. From the examples of this embodiment, the bearing structure is scientifically and reasonably designed, with efficient seismic isolation effect and autonomous adjustment ability, and its working principle is feasible and applicable to a variety of complex engineering environments.

[0084] Traditional friction pendulum bearings rely on a fixed curvature arc surface to achieve the sliding and seismic isolation effect of the structure, while the variable curvature friction pendulum system uses an adjustable curvature arc sliding surface to enable the bearing to flexibly adjust the stiffness and displacement response at different stages of an earthquake. This innovative design can adapt to earthquakes of different intensities, ensuring that the building is stable during small earthquakes and has sufficient deformation capacity during large earthquakes.

[0085] The support of this embodiment is embedded with an SMA component, which has a special memory effect and can change shape under different temperatures and external forces, and automatically recover after being stressed. This feature enables the support to adaptively adjust the stiffness and restoring force under earthquake action, and controls the overall performance of the support through the deformation of the SMA, providing efficient seismic isolation effect and displacement recovery capability.

[0086] This embodiment uses magnetic suspension technology to reduce the wear of the friction pendulum during sliding and increase the flexibility and response speed of the system. Magnetic suspension partially suspends the support through the electromagnetic field, reducing the friction between it and the sliding surface and improving the responsiveness of the system during small vibrations. At the same time, magnetic suspension can also cooperate with SMA and friction pendulum to perform precise displacement control, making the system more intelligent and sensitive.

[0087] Active control and adaptability: The bearing of this embodiment can monitor the state of the bearing under the action of earthquake in real time, including parameters such as displacement, acceleration and temperature, by introducing sensors 12 and intelligent control systems. Combining SMA and magnetic levitation technology, the bearing can automatically adjust its performance when detecting earthquakes of different levels, and timely control the sliding range and stiffness of the friction pendulum, so that it has active seismic isolation function. Through adaptive adjustment, the bearing can optimize the structural response according to real-time earthquake information to achieve the best earthquake resistance effect.

[0088] Adaptability to multi-directional earthquake effects: The bearing design takes into account the multi-directional effects of earthquakes.

Claims

1. A SMA-magnetic suspension variable curvature friction pendulum isolation support, characterized in that: It comprises a support body, which is an inner hollow cylinder and comprises an upper bearing plate (1) and a lower bearing plate (11) fixedly connected via a dustproof plate (8); The bottom end of the upper bearing plate (1) is provided with a first spherical groove, and the top end of the lower bearing plate (11) is provided with a second spherical groove and an annular armature located outside the second spherical groove; the second spherical groove is arranged in cooperation with the first spherical groove, and a sliding block is arranged between the first spherical groove and the second spherical groove; The annular armature and the upper bearing plate (1) include a plurality of electromagnets arranged around the axis of the slider, and a plurality of shape memory alloy components arranged around the axis of the slider between the electromagnets and the inner wall of the dustproof plate (8).

2. The SMA-magnetic suspension variable curvature friction pendulum isolation support according to claim 1, characterized in that: A sensor unit is installed on one side of the upper bearing plate (1).

3. The SMA-magnetic suspension variable curvature friction pendulum isolation support according to claim 2, characterized in that: The sensor unit includes a displacement sensor and an acceleration sensor.

4. The SMA-magnetic suspension variable curvature friction pendulum isolation support according to claim 1, characterized in that: The slider includes a slider trunk, and a plurality of slider branches evenly distributed in a circumferential direction are installed on the outer side wall of the slider trunk. The top of the slider trunk is arranged in the first spherical groove, and the end of each slider branch away from the slider trunk is arranged in the second spherical groove.

5. The SMA-magnetic suspension variable curvature friction pendulum seismic isolation support according to claim 4, characterized in that: A first damper is arranged between the top end of the slider trunk and the first spherical groove.

6. The SMA-magnetic suspension variable curvature friction pendulum isolation support according to claim 4, characterized in that: A second damper is arranged between one end of each sliding block branch away from the sliding block main body and the second spherical groove.

7. The SMA-magnetic suspension variable curvature friction pendulum isolation support according to claim 6, characterized in that: A friction material (5) is arranged between one end of each sliding block branch away from the sliding block main body and the second damper.

8. The SMA-magnetic suspension variable curvature friction pendulum seismic isolation support according to claim 7, characterized in that: The friction material (5) is made of polytetrafluoroethylene.

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