A high vertical load bearing capacity wire rope damper with displacement limitation

Abstract

The application discloses a high vertical load bearing capacity wire rope damper with displacement limitation, which comprises a wire rope damper energy dissipation unit, a high vertical load bearing capacity unit, a low horizontal restoring force unit and a vertical displacement limitation unit; the high vertical load bearing capacity unit is located inside the wire rope damper energy dissipation unit, and the two are tightly connected to form an integral structure; and the integral structure is connected with the low horizontal restoring force unit and the vertical displacement limitation unit at the upper end to realize low horizontal restoring force and vertical displacement limitation. The high vertical load bearing capacity wire rope damper with displacement limitation can be combined into a seismic isolation support to realize three-dimensional seismic isolation with high vertical load bearing capacity, solve the problem of excessive displacement in vertical seismic isolation and increase the safety of equipment. Meanwhile, the seismic isolation support also has an energy dissipation system, which can realize the vibration reduction problem under small vibration amplitude, reduce the harm of long-term slight vibration to the upper structure and realize the seismic isolation under impact load and the vibration reduction under small amplitude.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vibration isolation technology for buildings, bridges and electrical equipment, especially in the field of vibration control of ultra-high voltage electrical equipment. BACKGROUND

[0002] The suddenness of earthquake disasters causes serious damage to the epicenter area. Under the action of earthquakes, electrical equipment will produce vibration and displacement, which not only affects the normal operation of the equipment, but also affects the safety of the equipment and the power supply system. Seismic isolation devices can reduce the influence of external forces such as earthquakes, wind loads, and vibrations on structures, thereby protecting the integrity and stability of equipment and buildings. Common seismic isolation technologies include spring damping, hydraulic damping, rubber isolation, and friction damping. With the development of electrical equipment, seismic isolation technology is also constantly developing and improving. Seismic isolation technology is widely used in electrical equipment, such as in generator sets, where spring damping, rubber isolation, or steel wire rope isolation technology can effectively reduce the vibration and noise of the generator set, improving the efficiency and stability of the generator set. In transformer and switch cabinet equipment, rubber isolation and steel wire rope isolation technology can effectively reduce equipment vibration and noise, prolong equipment life and improve operating efficiency. Seismic isolation technology can reduce vibration and noise in electrical equipment, improve equipment life and operating efficiency.

[0003] Spring damping is a common seismic isolation technology for electrical equipment, which mainly absorbs and dissipates vibration energy through ring deformation. Rubber isolation bearing is another common seismic isolation technology for electrical equipment, which mainly absorbs and dissipates vibration energy through the elasticity of rubber materials. In the design and optimization of rubber isolation bearings, factors such as rubber material hardness, thickness, and viscous damping can improve the seismic isolation effect, such as improved lead rubber isolation bearings. Steel wire rope damper is a new type of seismic isolation technology for electrical equipment, which mainly dissipates and slows down vibration energy through the friction and damping effect of steel wire rope. Steel wire rope damper has the advantages of simple structure, high reliability, and wide application range, and is increasingly attracting the attention of researchers and engineers.

[0004] Currently, steel wire rope dampers are widely used in China due to their simple preparation, stable material mechanical properties, and good economy. However, steel wire rope dampers are difficult to return to the initial position after the action of earthquakes, and the vertical stiffness of steel wire rope has the characteristics of compression softening, which produces a large vertical displacement under the action of earthquakes, resulting in excessive rotation of the overall electrical equipment and the presence of soft or hard wire connections in the top structure. This pull damage caused by insufficient vertical stiffness of the steel wire rope damper can lead to seismic isolation failure, causing serious consequences.

[0005] Therefore, it is necessary and urgent to develop a displacement-limiting isolation bearing with high vertical bearing capacity. SUMMARY

[0006] To solve the above-mentioned technical problems, the application provides a vertical bearing capacity limiting steel wire rope damper, which can weaken the effect of the earthquake on the upper structure and limit the rotational displacement of the top of the upper structure. A plurality of vertical bearing capacity limiting steel wire rope dampers can be combined into an isolation bearing, which can provide large vertical stiffness and low horizontal stiffness at the same time under the action of the earthquake, so as to ensure the isolation efficiency of the isolation bearing and limit the displacement, thereby reducing the seismic response of the upper structure of the isolation bearing and controlling the rotation of the equipment under the action of the earthquake.

[0007] The technical scheme of the application is as follows:

[0008] A high vertical bearing capacity steel wire rope damper for limiting displacement comprises a steel wire rope damper energy dissipation unit, a high vertical bearing capacity unit, a low horizontal restoring force unit and a vertical displacement limiting unit. The high vertical bearing capacity unit is located inside the steel wire rope damper energy dissipation unit and is tightly connected to form an integral structure. The upper end of the integral structure is connected to the low horizontal restoring force unit and the vertical displacement limiting unit, so as to realize low horizontal restoring force and vertical displacement limitation.

[0009] The steel wire rope damper energy dissipation unit 5 comprises a steel wire rope damper upper clamping plate 5-2, a steel wire rope damper lower clamping plate 5-3 and a steel wire rope 5-1. The steel wire rope damper upper clamping plate 5-2 and the steel wire rope damper lower clamping plate 5-3 are rectangular plates with circular through holes arranged on the side edges. The steel wire rope 5-1 passes through the through holes on the side edges of the steel wire rope damper upper clamping plate 5-2 and the steel wire rope damper lower clamping plate 5-3 and is wound in a spiral shape. The steel wire rope winding process includes two horizontal sections. The steel wire rope damper upper clamping plate 5-2 is provided with a plurality of horizontal limiting holes 5-4 according to the number and spacing of the high vertical bearing capacity unit.

[0010] The high vertical bearing capacity unit 6 comprises a plurality of variable cross-section spring components. Each variable cross-section spring component comprises a variable cross-section spring 6-1, a spring connection upper plate 6-2, a spring connection bottom plate 6-3 and an energy dissipation metal mesh 6-4. The variable cross-section spring 6-1 provides nonlinear vertical bearing capacity. The spring connection upper plate 6-2 and the spring connection bottom plate 6-3 are arranged at the top end and the bottom end of the variable cross-section spring 6-1, respectively. The energy dissipation metal mesh 6-4 is arranged in the spring cavity and provides vertical energy dissipation to weaken the seismic response of the upper structure.

[0011] The low level restoring force unit comprises a plurality of horizontal limiting rods 4, and the vertical limiting displacement unit comprises a plurality of vertical limiting plates 3; the number of the horizontal limiting rods 4 and the vertical limiting plates 3 is the same as the number of the variable cross-section spring components of the high vertical bearing force unit; the horizontal limiting rod 4 passes through the horizontal limiting hole 5-4 of the steel wire rope damper upper clamping plate 5-2 of the steel wire rope damper energy dissipation unit, the bottom end is connected with the spring connecting upper plate 6-2 of the high vertical bearing force unit, and the top end is connected with the vertical limiting plate 3; the vertical limiting plate 3 is located directly above the horizontal limiting hole 5-4, and the vertical limiting plate 3 and the steel wire rope damper upper clamping plate 5-2 have a certain vertical distance in the initial state to serve as a limiting action.

[0012] Specifically, the bottom of the high vertical bearing force unit is fixedly connected with the steel wire rope damper lower clamping plate 5-3 of the steel wire rope damper energy dissipation unit, and the top of the high vertical bearing force unit is connected with the horizontal limiting rod 4; the low level restoring force is realized through the horizontal limiting rod 4 and the horizontal limiting hole 5-4 on the steel wire rope damper upper clamping plate 5-2 of the steel wire rope damper energy dissipation unit, and the vertical displacement limitation is realized through the displacement between the vertical limiting plate 3 and the steel wire rope damper upper clamping plate 5-2 of the steel wire rope damper energy dissipation unit.

[0013] Preferably, the top section of the variable cross-section spring 6-1 of the high vertical bearing force unit is reduced, so as to avoid collision between the steel wire rope and the variable cross-section spring in the process of horizontal deformation.

[0014] Preferably, in the initial state, the spring connecting upper plate 6-2 of the high vertical bearing force unit is tightly attached to the steel wire rope damper upper clamping plate 5-2 of the steel wire rope damper energy dissipation unit under the action of the variable cross-section spring 6-1.

[0015] Further, the diameter of the horizontal limiting rod 4 is smaller than the hole diameter of the horizontal limiting hole 5-4 of the steel wire rope damper upper clamping plate 5-2, and the horizontal limiting rod 4 has a horizontal movement range in the horizontal limiting hole 5-4.

[0016] Further, a plurality of the high vertical bearing force steel wire rope dampers for limiting displacement can be combined into an isolation bearing.

[0017] Further, the isolation bearing further comprises an isolation bearing upper plate 15 and an isolation bearing lower plate 16, the isolation bearing upper plate 15 is connected with the steel wire rope damper upper clamping plate 5-2, and the isolation bearing lower plate 16 is connected with the steel wire rope damper lower clamping plate 5-3.

[0018] Further, the steel wire rope damper upper clamping plate 5-2 and the steel wire rope damper lower clamping plate 5-3 are provided with damper mounting holes 5-5, and the isolation bearing upper plate 15 and the isolation bearing lower plate 16 of the isolation bearing are provided with bearing plate connecting holes 17.

[0019] The beneficial effects of the present application are:

[0020] The high vertical load bearing capacity wire rope damper with displacement limitation provided by the present application can be combined to be used as an isolation bearing, realizing three-dimensional isolation with high vertical load bearing capacity, solving the problem of too large displacement in vertical isolation, and increasing the safety of the equipment. Meanwhile, the isolation bearing also has an energy dissipation system, and can realize the vibration reduction problem under small vibration amplitude, reducing the damage of long-term slight vibration to the upper structure, and realizing the isolation under impact load and the vibration reduction under small amplitude. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Installation schematic diagram of the isolation device for the pillar type equipment.

[0022] Figure 2 Three-dimensional view of the high vertical load bearing capacity wire rope damper with displacement limitation.

[0023] Figure 3 Radial side view of the high vertical load bearing capacity wire rope damper with displacement limitation.

[0024] Figure 4 Axial side view of the high vertical load bearing capacity wire rope damper with displacement limitation.

[0025] Figure 5 Steel wire rope damper with horizontal section opening connecting plate.

[0026] Figure 6 Three-dimensional view of the installation of the variable cross-section spring and the steel wire rope clamp plate.

[0027] Figure 7 Three-dimensional view of the variable cross-section spring part.

[0028] Figure 8 Three-dimensional view of the isolation device composed of two high vertical load bearing capacity wire rope dampers with displacement limitation in the embodiment.

[0029] Figure 9 Top view of the combined isolation device of Figure 8 .

[0030] Figure 10 Side view of the combined isolation device of Figure 8 .

[0031] In the figure:

[0032] 1 is a pillar type electrical equipment; 2 is an isolation bearing device;

[0033] 5 is a steel wire rope damper energy dissipation unit: 5-1 is a steel wire rope; 5-2 is an upper clamp plate of the steel wire rope damper; 5-3 is a lower clamp plate of the steel wire rope damper;

[0034] 5-4 is a horizontal limiting hole; 5-5 is a damper mounting hole;

[0035] 6 is a high vertical load bearing unit: 6-1 is a variable cross-section spring; 6-2 is a spring connecting upper plate; 6-3 is a spring connecting bottom plate; 6-4 is a energy dissipation metal mesh;

[0036] 3 is a vertical limiting plate;

[0037] 4 is a horizontal limiting rod;

[0038] 14 is an upper structure support steel column; 15 is an isolation bearing upper plate; 16 is an isolation bearing lower plate; 17 is a bearing plate connecting hole. DETAILED DESCRIPTION

[0039] The technical solutions provided by the present application will be further described below in combination with specific embodiments and drawings. The advantages and features of the present application will be more apparent in combination with the following description.

[0040] It should be noted that the embodiments of the present application have better implementation, and are not any form of limitation of the present application. The technical features or combinations of technical features described in the embodiments of the present application should not be considered in isolation, and they can be combined with each other to achieve better technical effects. The scope of the preferred embodiments of the present application can also include other implementations, and this should be understood by those skilled in the art to which the embodiments of the present application belong.

[0041] The technology, methods and devices known to those skilled in the relevant art can not be discussed in detail, but in appropriate cases, the technology, methods and devices should be considered as part of the authorized description. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other examples of exemplary embodiments can have different values.

[0042] The drawings of the present application are very simplified and use non-precise proportions, only to facilitate and clarify the purpose of assisting the description of the embodiments of the present application, and are not a limiting condition for the implementation of the present application. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should fall within the scope of the technical content disclosed by the present application. The same reference numbers appearing in the drawings of the present application represent the same features or components, which can be applied to different embodiments.

[0043] As Figure 1 and Figure 2As shown in the figure, a high vertical bearing capacity wire rope damper limiting displacement can be widely used in the isolation application of electrical equipment 1 as an isolation bearing device 2, and can realize three-dimensional isolation with high vertical bearing capacity. The device not only limits the excessive displacement of the damper horizontally and vertically, but also provides energy dissipation capacity, realizes three-dimensional isolation with high vertical bearing capacity, solves the technical problems of insufficient vertical bearing capacity or low isolation efficiency in three-dimensional isolation, and breaks through the engineering problem of damper failure after excessive deformation. At the same time, the device can also realize the damping problem under small rotation amplitude, and has good application prospect for three-dimensional isolation with high vertical bearing capacity.

[0044] As shown in the figure, Figures 2-7 A high vertical bearing capacity wire rope damper limiting displacement, comprising a wire rope damper energy dissipation unit, a high vertical bearing capacity unit, a low horizontal restoring force unit, and a vertical displacement limiting unit, the high vertical bearing capacity unit is located inside the wire rope damper energy dissipation unit, and the two are connected as a whole structure, and are connected with the low horizontal restoring force unit and the vertical displacement limiting unit at the upper end. Each unit works in coordination to provide restoring force and energy dissipation capacity, effectively realizing the isolation and damping effect. Among them:

[0045] As shown in the figure, Figure 5 The wire rope damper energy dissipation unit 5 comprises a wire rope damper upper clamping plate 5-2, a wire rope damper lower clamping plate 5-3, and a wire rope 5-1; the wire rope damper upper clamping plate 5-2 and the wire rope damper lower clamping plate 5-3 are rectangular plates with circular through holes on the sides; the wire rope 5-1 passes through the through holes on the sides of the wire rope damper upper clamping plate 5-2 and the wire rope damper lower clamping plate 5-3, and is wound into a spiral shape, and the wire rope winding process includes two horizontal sections; the wire rope damper upper clamping plate 5-2 is provided with a plurality of horizontal limiting holes 5-4 according to the number and spacing of the high vertical bearing capacity unit.

[0046] As shown in the figure, Figure 7 The high vertical bearing capacity unit 6 comprises two or more variable cross-section spring components, each spring component comprising a variable cross-section spring 6-1, a spring connection upper plate 6-2, a spring connection bottom plate 6-3, and an energy dissipation metal mesh 6-4; the variable cross-section spring 6-1 provides nonlinear vertical bearing capacity; the spring connection upper plate 6-2 and the spring connection bottom plate 6-3 are respectively arranged at the top end and the bottom end of the variable cross-section spring 6-1; the energy dissipation metal mesh 6-4 is arranged in the spring cavity, which provides vertical energy dissipation and reduces the seismic response of the upper structure.

[0047] The low level restoring force unit comprises two or more horizontal limiting rods 4, and the vertical limiting displacement unit comprises two or more vertical limiting plates 3; the number of the horizontal limiting rods 4 and the vertical limiting plates 3 is the same as the number of the variable cross-section spring components of the high vertical bearing force unit; the horizontal limiting rods 4 pass through the horizontal limiting holes 5-4 of the upper clamping plate 5-2 of the wire rope damper energy dissipation unit, the bottom end is connected with the spring connecting upper plate 6-2 of the high vertical bearing force unit, and the top end is connected with the vertical limiting plate 3; the vertical limiting plate 3 is located directly above the horizontal limiting hole 5-4, and the vertical limiting plate 3 and the upper clamping plate 5-2 of the wire rope damper have a certain vertical distance in the initial state to serve as a limiting action.

[0048] Specifically, the bottom of the high vertical bearing force unit is fixedly connected with the lower clamping plate 5-3 of the wire rope damper energy dissipation unit, and the top of the high vertical bearing force unit is connected with the horizontal limiting rod 4; the low level restoring force is realized through the horizontal limiting rod 4 and the horizontal limiting hole 5-4 on the upper clamping plate 5-2 of the wire rope damper energy dissipation unit, and the vertical displacement limitation is realized through the displacement between the vertical limiting plate 3 and the upper clamping plate 5-2 of the wire rope damper energy dissipation unit.

[0049] Preferably, the top section of the variable cross-section spring 6-1 of the high vertical bearing force unit is reduced, so as to avoid collision between the wire rope and the variable cross-section spring in the process of horizontal deformation.

[0050] Preferably, in the initial state, the spring connecting upper plate 6-2 of the high vertical bearing force unit is tightly attached to the upper clamping plate 5-2 of the wire rope damper energy dissipation unit 5 under the action of the variable cross-section spring 6-1.

[0051] Further, the diameter of the horizontal limiting rod 4 is smaller than the hole diameter of the horizontal limiting hole 5-4 of the upper clamping plate 5-2 of the wire rope damper, and the horizontal limiting rod 4 can move horizontally within a certain range.

[0052] Specifically, the isolation action requires the isolator to provide low level restoring force and high vertical bearing force, and such special mechanical properties can be solved by the low level restoring force unit, and the specific implementation process is to utilize the sliding friction between the spring connecting upper plate 6-2 and the upper clamping plate 5-2 of the wire rope damper to provide low level stiffness.

[0053] Specifically, the vertical limiting plate 3 and the upper clamping plate 5-2 of the wire rope damper have a certain displacement in the initial state, the relative displacement between the two gradually decreases when vertical deformation occurs, and when the displacement reaches the design limit, the two are connected by the wire rope 5-1 and the variable cross-section spring 6-1 to jointly provide vertical restoring force, so as to control the vertical displacement within the initial range.

[0054] Furthermore, the wire rope damper energy dissipation unit and the high vertical bearing capacity unit are independent components, and the number of the two structures can be arbitrarily combined according to actual project needs. Ultimately, these two seismic isolation components are connected through the wire rope damper's upper and lower clamping plates, horizontal limit rods 4, and vertical limit plates 3 to form a limited-displacement seismic isolation bearing with high vertical bearing capacity. This bearing has modular features, is easy to produce and process, and the seismic isolation effect can be arbitrarily adjusted.

[0055] Furthermore, two or more of the above-mentioned displacement-limiting high vertical bearing capacity steel wire rope dampers can be symmetrically arranged and combined into a seismic isolation bearing.

[0056] Furthermore, the seismic isolation support also includes a seismic isolation support upper plate 15 and a seismic isolation support lower plate 16. The seismic isolation support upper plate 15 is connected to the wire rope damper upper plate 5-2; the seismic isolation support lower plate 16 is connected to the wire rope damper lower plate 5-3.

[0057] Furthermore, the wire rope damper upper plate 5 - 2 and the wire rope damper lower plate 5 - 3 are provided with damper mounting holes 5 - 5 , and the seismic isolation bearing upper plate 15 and the seismic isolation bearing lower plate 16 are provided with bearing plate connecting holes 17 .

[0058] The installation process and application steps of the above-mentioned high vertical bearing capacity wire rope damper with limited displacement are as follows:

[0059] Step 1: Assemble the wire rope damper energy dissipation unit 5. Use the wire rope damper upper clamping plate 5-2 and the wire rope damper lower clamping plate 5-3 to connect the wire rope 5-1 into Figure 5 shown.

[0060] Step 2: Assemble the high vertical bearing capacity unit 6. Select the appropriate number of variable cross-section springs 6-1 according to the specific seismic isolation requirements, fix the variable cross-section springs 6-1 and the energy dissipation metal mesh 6-4 to the spring connection base plate 6-3, and fix the spring connection base plate 6-3 to the lower clamping plate 5-3 of the wire rope damper to form a variable cross-section spring component; the entire spring component is located inside the wire rope damper energy dissipation unit 5, as shown in the figure. Figure 2 As an embodiment, for example and not limitation, the number of the variable cross-section springs 6-1 is three, and the high vertical bearing capacity unit 6 includes three variable cross-section spring components.

[0061] Step 3: Install the low horizontal limit unit. Firmly connect the horizontal limit rod 4 to the spring connection upper plate 6-2, and pass the horizontal limit rod 4 through the horizontal limit hole 5-4 located above the wire rope damper upper clamping plate 5-2 to ensure that the horizontal limit unit is completed.

[0062] Step 4: Install the vertical limit unit. Connect the vertical limit plate 3 to the top of the horizontal limit rod 4 to ensure that the vertical limit unit is completed.

[0063] Fifth step: according to the actual needs of the structure type to select different upper structure support steel column 14 arrangement and different shape of the isolation bearing upper plate 15, isolation bearing lower plate 16. As an example, but not limited, as shown in Figure 8 、 Figure 9 The upper structure support steel column 14 adopts square arrangement, and the isolation bearing upper plate 15 and the isolation bearing lower plate 16 adopt hexagonal bearing plate. The steel wire rope damper upper clamp plate 5-2 is connected with the isolation bearing upper plate 15, and the steel wire rope damper lower clamp plate 5-3 is connected with the isolation bearing lower plate 16.

[0064] Sixth step: according to the size of the isolation displacement and the requirement of the isolation structure damping efficiency, different energy dissipation system arrangement scheme is provided. As an example, but not limited, as shown in Figure 9 and Figure 10 The isolation bearing includes two high vertical load steel wire rope dampers for limiting displacement, and adopts symmetrical arrangement.

[0065] As shown in Figure 8 When the upper structure or the foundation is subjected to earthquake action, the isolation bearing upper plate 15 will move horizontally and rotate. When the horizontal displacement is within the diameter range of the horizontal limiting hole 5-4, and the vertical displacement is within the distance between the vertical limiting plate 3 and the isolation bearing upper plate 15, the steel wire rope 5-1 with horizontal section and the variable cross-section spring 6-1 and the energy dissipation metal mesh 6-4 will deform to consume seismic energy. When the horizontal and vertical limiting displacement exceeds any one of the limiting values, the friction between the spring connecting upper plate 6-2 and the upper clamp plate 5-2 of the steel wire rope damper provides horizontal stiffness, and the low horizontal restoring force is realized through the horizontal limiting rod 4 and the horizontal limiting hole 5-4; the vertical displacement is limited by the vertical limiting plate 3, and the steel wire rope 5-1 and the variable cross-section spring 6-1 jointly provide the vertical restoring force to control the vertical displacement within the initial range; the stronger deformation stiffness makes the damper return to the original energy dissipation position. This device not only limits the excessive horizontal and vertical displacement of the damper, but also provides energy dissipation capacity, and has good application prospect for three-dimensional isolation requiring high vertical load capacity.

[0066] The above description is only a description of the preferred embodiments of the present application, and is not any limitation on the scope of the present application. Any modification or modification made by any ordinary skilled person in the art according to the above disclosed technical content should be regarded as an equivalent effective embodiment, and belongs to the protection scope of the technical scheme of the present application.

Claims

1. A high vertical bearing capacity wire rope damper with limited displacement, characterized in that: It includes a wire rope damper energy dissipation unit, a high vertical bearing capacity unit, a low horizontal restoring force unit, and a vertical displacement restriction unit. The high vertical bearing capacity unit is located inside the wire rope damper energy dissipation unit. The two are tightly connected to form an integral structure and are connected to the low horizontal restoring force unit and the vertical displacement restriction unit at the upper end to achieve low horizontal restoring force and vertical displacement restriction. The wire rope damper energy dissipation unit (5) comprises a wire rope damper upper plate (5-2), a wire rope damper lower plate (5-3), and a wire rope (5-1); the wire rope damper upper plate (5-2) and the wire rope damper lower plate (5-3) are rectangular plates with circular through holes on the sides; the wire rope (5-1) passes through the through holes on the sides of the wire rope damper upper plate (5-2) and the wire rope damper lower plate (5-3) and is wound into a nearly spiral shape, and the winding process of the wire rope includes two upper and lower horizontal sections; a plurality of horizontal limit holes (5-4) are provided on the wire rope damper upper plate (5-2) according to the number and spacing of the high vertical bearing capacity units; The high vertical bearing capacity unit (6) comprises a plurality of variable-section spring components, each variable-section spring component comprising a variable-section spring (6-1), a spring connecting upper plate (6-2), a spring connecting bottom plate (6-3), and an energy-dissipating metal mesh (6-4); the variable-section spring (6-1) functions to provide nonlinear vertical bearing capacity; the spring connecting upper plate (6-2) and the spring connecting bottom plate (6-3) are respectively arranged at the top and bottom ends of the variable-section spring (6-1); the energy-dissipating metal mesh (6-4) is arranged in the spring cavity, and functions to provide vertical energy dissipation and reduce the seismic response of the upper structure; The low-level restoring force unit includes a plurality of horizontal limiting rods (4), and the vertical limiting displacement unit includes a plurality of vertical limiting plates (3); the number of the horizontal limiting rods (4) and the vertical limiting plates (3) is the same as the number of the variable-section spring components of the high vertical bearing force unit; the horizontal limiting rod (4) passes through the horizontal limiting hole (5-4) of the upper clamping plate (5-2) of the wire rope damper of the wire rope damper energy dissipation unit, and its bottom end is connected to the spring connection upper plate (6-2) of the high vertical bearing force unit, and its top end is connected to the vertical limiting plate (3); the vertical limiting plate (3) is located directly above the horizontal limiting hole (5-4), and the vertical limiting plate (3) and the upper clamping plate (5-2) of the wire rope damper have a certain vertical distance in the initial state to serve as a limiting function; The bottom of the high vertical bearing capacity unit is fixedly connected to the lower clamping plate (5-3) of the wire rope damper energy dissipation unit, and the top of the high vertical bearing capacity unit is connected to the horizontal limit rod (4); a low horizontal restoring force is achieved through the horizontal limit rod (4) and the horizontal limit hole (5-4) on the upper clamping plate (5-2) of the wire rope damper energy dissipation unit, and vertical displacement limitation is achieved through the displacement between the vertical limit plate (3) and the upper clamping plate (5-2) of the wire rope damper energy dissipation unit; In the initial state, the spring connection upper plate (6-2) of the high vertical bearing capacity unit is in close contact with the wire rope damper upper clamping plate (5-2) of the wire rope damper energy dissipation unit (5) under the action of the variable cross-section spring (6-1); The diameter of the horizontal limiting rod (4) is smaller than the aperture of the horizontal limiting hole (5-4) of the upper clamping plate (5-2) of the wire rope damper, and the horizontal limiting rod (4) has a horizontal motion range within the horizontal limiting hole (5-4).

2. The high vertical bearing capacity steel wire rope damper with limited displacement according to claim 1, characterized in that: The top cross-section of the variable cross-section spring (6-1) of the high vertical bearing capacity unit is reduced, so as to prevent the steel wire rope from colliding with the variable cross-section spring during horizontal deformation.

3. The high vertical bearing capacity steel wire rope damper with limited displacement according to claim 1, characterized in that: A plurality of the displacement-limiting high vertical bearing capacity steel wire rope dampers are combined into a seismic isolation support.

4. The high vertical bearing capacity steel wire rope damper with limited displacement according to claim 3, characterized in that: The seismic isolation support further comprises a seismic isolation support upper plate (15) and a seismic isolation support lower plate (16); the seismic isolation support upper plate (15) is connected to the wire rope damper upper clamping plate (5-2); and the seismic isolation support lower plate (16) is connected to the wire rope damper lower clamping plate (5-3).

5. The high vertical bearing capacity steel wire rope damper with limited displacement according to claim 4, characterized in that: The wire rope damper upper clamping plate (5-2) and the wire rope damper lower clamping plate (5-3) are provided with damper mounting holes (5-5), and the seismic isolation support upper plate (15) and the seismic isolation support lower plate (16) of the seismic isolation support are provided with support plate connection holes (17).

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