Self-resetting cable damping support

Abstract

The application provides a self-resetting cable shock-absorbing support, and relates to the technical field of shock-absorbing supports.The self-resetting cable shock-absorbing support comprises a support body, a shock-absorbing and limiting cable assembly and a self-resetting cable assembly, the shock-absorbing and limiting cable assembly and the self-resetting cable assembly are both provided with a plurality of assemblies and are both installed on the support body; the support body comprises an upper seat plate and a lower seat plate which are arranged in an up-down manner, the upper seat plate and the lower seat plate are both provided with a plurality of rope grooves one and a plurality of rope grooves two, and the shock-absorbing and limiting cable assembly is inserted into two corresponding rope grooves one and is in sliding connection with the two rope grooves one; the self-resetting cable shock-absorbing support has the advantages that the support body has good shock-absorbing, limiting and self-resetting performance while the support body has large displacement adaptability, the displacement of the support body is limited, the self-resetting cable assembly can be standardized and produced, and the self-resetting cable shock-absorbing support is economical.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shock-absorbing supports, and relates to a self-resetting cable shock-absorbing support. BACKGROUND

[0002] Earthquake disaster is a kind of natural disaster that has a great impact on human society. When an earthquake occurs, bridges and buildings instantly bear huge loads, causing severe vibration, damage and collapse. Bridge supports are key components connecting the upper structure and the lower structure of a bridge. In order to ensure the safety of people's lives and property, in high-intensity earthquake areas, the use of supports for seismic mitigation design is an important means to ensure the seismic performance of structures. Seismic damage investigation and related research show that, in order to control the residual displacement of structures after an earthquake, improve the recoverability of structures, and reduce the social and economic impact of earthquake disasters, seismic mitigation supports should have large displacement adaptability, energy dissipation buffering capacity, and good limiting capacity and self-resetting capacity.

[0003] Traditional supports such as pot-type supports, spherical supports and rubber supports are widely used due to their high vertical bearing capacity and stable performance. However, such supports lack displacement restraining devices and are prone to beam collapse disasters under earthquakes, which restricts their application in high-intensity earthquake areas. Traditional friction pendulum seismic mitigation supports have good self-resetting capacity and friction energy dissipation capacity. The self-resetting function is realized by the weight of the beam itself, which may cause beam collapse during normal operation, which is not conducive to the stress of the structure.

[0004] Patent application No. 201921222276.9 provides a cable shock-absorbing support. On the basis of the traditional support, a cable assembly is added. The support is not constrained in the normal displacement state, and can allow large deformation of the support under the action of an earthquake, reduce the internal forces of the structure under earthquake, realize reasonable and controllable displacement of the support, and effectively prevent beam collapse disasters. However, it lacks self-resetting function, and the residual displacement of the support is large after an earthquake.

[0005] Patent application No. 202010400684.X provides a wave cable super-elastic self-resetting seismic support, and patent application No. 202220467742.5 provides a ring wave cable self-resetting seismic support. Both types of cable seismic supports add a resetting device or an elastic element to the original cable assembly, so that the support has a self-resetting function. The self-resetting cable seismic support needs to realize two functions: cable limiting and seismic mitigation function; and self-resetting function. Although these two types of supports theoretically solve the self-resetting problem, they are difficult to achieve the expected effect in actual application, and the specific reasons are as follows:

[0006] According to the industry or local standard, the design bearing capacity F of the cable limiting shock absorption function is 40% of the vertical force N of the support, F1=0.4N; the self-resetting function only needs to overcome the friction force f of the support, according to the relevant industry standard, the friction coefficient μ of the support is 0.03-0.05, the design bearing capacity F2 of the self-resetting function is f=μN=0.03-0.05N, and there is an 8-13 times relationship between F1 / F2 according to the above relationship;

[0007] The existing self-resetting cable support combines the cable limiting shock absorption function and the self-resetting function into a whole, that is, the current cable is used as a shock absorption limiting cable and also as a self-resetting cable, and the cable diameter and quantity are selected by adopting a design bearing capacity F=0.4N, F=nP (n is the number of steel wire ropes, and P is the minimum breaking force of the steel wire rope). For a given tonnage support, the diameter φ of the steel wire rope depends on the number n of the steel wire ropes, and n will affect the size of the support, and the larger n is, the larger the size of the support is, resulting in higher cost of the support. Therefore, the diameter of the steel wire rope is selected in proportion to the tonnage of the support in terms of economy.

[0008] For a large-tonnage support, the diameter φ of the cable is large, the flexibility of the steel wire rope is poor, and the bending stiffness of the steel wire rope is large, resulting in insufficient restoring force of the elastic element and poor self-resetting effect.

[0009] The large diameter of the steel wire rope will result in a large minimum bending radius, which will inevitably result in a large waveform and a large rope groove, resulting in a large size of the support and poor economy.

[0010] Different tonnage supports adopt different diameters of steel wire ropes, resulting in the need to design different waveforms of rope grooves and different models of elastic elements, which leads to difficulty in standardized production and manufacturing.

[0011] The bearing cable is also used as a self-resetting cable, and the same specification steel wire rope is adopted, which is not good in economy, and when one of the two functions is damaged, the other function will also be affected. SUMMARY

[0012] In view of the above technical problems in the prior art, a self-resetting cable shock absorption support is provided, which can limit the displacement of the support while ensuring that the shock absorption support has large displacement adaptability, so that the support body has good shock absorption, limiting and self-resetting performance, and the self-resetting cable assembly can be standardized in production and manufacturing and has good economy.

[0013] The purpose and effect of the present application are achieved by the following specific technical means:

[0014] A self-resetting cable shock absorption support, comprising a support body, a shock absorption limiting cable assembly and a self-resetting cable assembly, the shock absorption limiting cable assembly and the self-resetting cable assembly are both provided with a plurality of and are both installed on the support body.

[0015] The support body comprises upper and lower seat plates arranged in an up-down manner, and a plurality of rope grooves I and a plurality of rope grooves II are formed on the side surfaces of the upper and lower seat plates; the shock-limiting cable assembly is inserted into and slidably connected with the corresponding two rope grooves I; the self-resetting cable assembly is inserted into and slidably connected with the corresponding two rope grooves II; the shock-limiting cable assembly and the self-resetting cable assembly are both fixed with cable anchoring assemblies at the ends thereof; and the plurality of cable anchoring assemblies are respectively fixed in the plurality of rope grooves I and the plurality of rope grooves II.

[0016] Further preferred: the shock-limiting cable assembly comprises a plurality of shock-absorbing cables, the ends of the plurality of shock-absorbing cables are fixed in the rope grooves I through the cable anchoring assemblies, and the remaining parts of the plurality of shock-absorbing cables are slidably connected with the rope grooves I.

[0017] Further preferred: the self-resetting cable assembly comprises a self-resetting cable and an elastic element, the end of the self-resetting cable is fixed in the rope grooves II through the cable anchoring assemblies, and the remaining part of the self-resetting cable is slidably connected with the rope grooves II; the elastic element is at least one, and the elastic element and the self-resetting cable are integrated; the diameter of the self-resetting cable is smaller than that of the shock-absorbing cable.

[0018] Further preferred: the elastic element comprises a high-elasticity rubber element, a curved hole is formed in the high-elasticity rubber element, and the self-resetting cable passes through the curved hole and is integrated with the high-elasticity rubber element.

[0019] Further preferred: guide sliding blocks are installed on both sides of the inner wall of the rope grooves II and close to the outer edge, and the guide sliding blocks are slidably connected with the self-resetting cable.

[0020] Further preferred: the displacement of the bending section of the self-resetting cable in the curved hole is greater than the limit displacement of the shock-limiting cable assembly; the deformation of the high-elasticity rubber element is greater than or equal to the limit displacement required by the support body during an earthquake; and the load value of the high-elasticity rubber element is greater than or equal to the friction force of the self-resetting support.

[0021] Further preferred: the elastic element comprises a plurality of butterfly springs, the plurality of butterfly springs are fixed to form a butterfly spring assembly, and the self-resetting cable passes through the butterfly spring assembly and is detachably connected with the butterfly spring assembly.

[0022] Further preferred: the deformation of the butterfly spring assembly is greater than or equal to the limit displacement required by the support body during an earthquake; and the load value of the butterfly spring assembly is greater than or equal to the friction force of the self-resetting support.

[0023] Further preferred: the rope groove two include intermediate section and two outer edge section, the intermediate section cross section is circular, the outer edge section cross section is rectangular, the butterfly spring assembly is located in the intermediate section.

[0024] Further preferred: the upper seat plate bottom is fixed with a sliding plate, the upper surface of the lower seat plate is fixed with an intermediate seat plate through slotting, the upper end of the intermediate seat plate is in sliding connection with the sliding plate, sleeve bolts are vertically inserted into the surface of the upper seat plate and the lower seat plate at four corners.

[0025] Compared with the prior art, the present application has the following beneficial effects:

[0026] (1) The present application retains the advantages of ordinary supports, and through the setting of the damping and limiting cable assembly, on one hand, the displacement demand of the support body under normal working conditions can be met, and on the other hand, the relative displacement between the upper seat plate and the lower seat plate in the support body can be effectively limited within a controllable range when the earthquake occurs, so that beam falling is prevented, and the seismic force on the support body can be well buffered, so that the support body has good seismic isolation performance.

[0027] (2) Through the setting of the self-resetting cable assembly, the self-resetting cable assembly also has normal elastic displacement when the support body is in normal working conditions or is displaced due to the earthquake; after the earthquake, the beam body is reset by the high elastic force of the self-resetting cable assembly, so as to eliminate the residual displacement of the support body and realize the self-resetting function of the support body.

[0028] (3) The damping and limiting cable assembly for bearing and damping function and the self-resetting cable assembly for self-resetting of the support body are separately set, and do not affect each other, so as to realize their respective functions, and the service life of the damping support can be prolonged.

[0029] (4) Since the self-resetting cable assembly only needs to overcome the friction of the support body, the design bearing capacity of the self-resetting cable assembly is small, and a self-resetting cable assembly with good flexibility and small diameter can be selected, so that standardized manufacturing is facilitated, and the self-resetting cable assembly can be reasonably increased or decreased in number to meet the resetting demand of supports of different tonnage.

[0030] (5) The present application has simple structure, and can select self-resetting cable assemblies and damping and limiting cable assemblies with different flexibility and diameter, so that the size of the support body is not excessively increased, and the economy is good.

[0031] (6) The damping support has simple structure, and is convenient to manufacture and install. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1The schematic diagram of the whole cross-bridge direction section structure of the present application;

[0033] Figure 2 The schematic diagram of the whole cross-bridge direction section structure of the present application;

[0034] Figure 3 The schematic diagram of the whole cross-bridge direction section structure of the present application;

[0035] Figure 4 The schematic diagram of the whole cross-bridge direction section structure of the present application;

[0036] Figure 5 The schematic diagram of the whole cross-bridge direction section structure of the present application;

[0037] Figure 6 The schematic diagram of the whole cross-bridge direction section structure of the present application;

[0038] Figure 7 The schematic diagram of the whole cross-bridge direction section structure of the present application;

[0039] Figure 8 The schematic diagram of the whole cross-bridge direction section structure of the present application; Figure 7 The schematic diagram of the whole cross-bridge direction section structure of the present application;

[0040] Figure 9 The schematic diagram of the whole cross-bridge direction section structure of the present application;

[0041] Figure 10 The schematic diagram of the whole cross-bridge direction section structure of the present application;

[0042] Figure 11 The schematic diagram of the whole cross-bridge direction section structure of the present application;

[0043] Figure 12 The schematic diagram of the whole cross-bridge direction section structure of the present application;

[0044] Figure 13 The schematic diagram of the whole cross-bridge direction section structure of the present application; Figure 2 The schematic diagram of the whole cross-bridge direction section structure of the present application;

[0045] The marks in the figure: sleeve bolt 1, upper seat plate 2, lower seat plate 3, rope groove one 4, rope groove two 5, sliding plate 6, damping cable 7, self-resetting cable 8, butterfly spring 9, cable anchoring assembly 10, intermediate seat plate 11, high-elasticity rubber element 12, curved hole 13, guide sliding block 14, outer edge section a, middle section b. DETAILED DESCRIPTION

[0046] Please refer to Figures 1-13 , the embodiment of the present application is further explained;

[0047] A self-resetting cable damping support includes a support body, a damping and limiting cable assembly, and a self-resetting cable assembly. Several damping and limiting cable assemblies and self-resetting cable assemblies are provided and installed on the support body.

[0048] The support body includes an upper support plate 2 and a lower support plate 3 distributed vertically. The upper support plate 2 and the lower support plate 3 each have several rope grooves 4 and several rope grooves 5 through their sides. The shock-absorbing and limiting cable assembly is inserted into the two corresponding rope grooves 4 and slidably connected to them. The self-resetting cable assembly is inserted into the two corresponding rope grooves 5 and slidably connected to them. The ends of the shock-absorbing and limiting cable assembly and the self-resetting cable assembly are fixed with cable anchoring assemblies. The several cable anchoring assemblies are respectively fixed in the several rope grooves 4 and several rope grooves 5.

[0049] The upper seat plate 2 has a slide plate 6 fixed at the bottom, and the lower seat plate 3 has an intermediate seat plate 11 fixed on the upper surface through a slot. The upper end of the intermediate seat plate 11 is slidably connected to the slide plate 6.

[0050] Sleeve bolts 1 are vertically inserted at the four corners of the surfaces of the upper seat plate 2 and the lower seat plate 3;

[0051] Specifically, the bearing body is a key component connecting the superstructure and substructure of the bridge. The bearing body is fixed between the superstructure and substructure of the bridge by sleeve bolts 1 on the upper bearing plate 2 and the lower bearing plate 3. For example, the bearing body can be a spherical bearing body, a pot bearing body, or a hyperboloid friction pendulum bearing body, etc. This damping bearing has a simple structure and is easy to manufacture and install.

[0052] The working principle of the vibration damping bearing is as follows:

[0053] When an earthquake occurs, the bridge will be laterally displaced, thereby driving the upper seat plate 2 and the lower seat plate 3 to move laterally, the middle seat plate 11 on the lower seat plate 3 will slide on the slide plate 6 at the bottom of the upper seat plate 2, and the friction generated by the sliding of the middle seat plate 11 and the slide plate 6 is the resistance that needs to be overcome when the damping support resets, at the same time, the damping limiting cable assembly and the self-resetting cable assembly passing between the upper seat plate 2 and the lower seat plate 3 will slide in the rope groove one 4 and the rope groove two 5 respectively, the design of the damping limiting cable assembly and the self-resetting cable assembly can limit the movement of the upper seat plate 2 and the lower seat plate 3 within a certain range, so as to avoid the separation of the upper seat plate 2 and the lower seat plate 3, in addition, the damping limiting cable assembly has a damping effect, can buffer the shock force received by the upper seat plate 2 and the lower seat plate 3, and can effectively prevent the bridge from falling beam disaster; when the upper seat plate 2 and the lower seat plate 3 produce relative displacement, the self-resetting cable assembly with high elastic force will be stretched to have elastic potential energy; after the earthquake, there may be residual displacement of the support body, that is, the upper seat plate 2 and the lower seat plate 3 are dislocated, at this time, the self-resetting cable assembly with elastic potential energy will pull the upper seat plate 2 and the lower seat plate 3 to restore the self-resetting cable assembly to its original state, thereby eliminating the residual displacement of the support body and realizing the self-resetting function of the support body.

[0054] Compared with the prior art, the present scheme has the following beneficial effects:

[0055] (1) In addition to retaining the advantages of ordinary supports, the damping limiting cable assembly can meet the displacement requirements of the support body under normal working conditions, and can also effectively limit the relative displacement between the upper seat plate 2 and the lower seat plate 3 in the support body within a controllable range to prevent falling beam and effectively buffer the shock force on the support body when an earthquake occurs, so that the support body has good damping and isolation performance.

[0056] (2) The self-resetting cable assembly is provided, and the self-resetting cable assembly will also have normal elastic displacement when the support body is in a normal working state or is displaced due to an earthquake; after the earthquake, the high elastic force of the self-resetting cable assembly is used to reset the beam body, thereby eliminating the residual displacement of the support body and realizing the self-resetting function of the support body.

[0057] (3) The damping limiting cable assembly for bearing and damping function and the self-resetting cable assembly for self-resetting of the support body are separately provided, and the two do not affect each other, realize their respective functions, and thereby prolong the service life of the damping support.

[0058] (4) Since the self-resetting cable assembly design load only needs to overcome the friction of the support body, the self-resetting cable assembly design load is small, and a self-resetting cable assembly with good flexibility and small diameter can be selected, facilitating standardized manufacturing, and only the number of self-resetting cable assemblies needs to be reasonably increased or decreased to meet the resetting needs of supports of different tonnage.

[0059] (5) The structure of the present application is simple, and different flexible and diameter self-resetting cable assemblies and shock-absorbing limiting cable assemblies can be selected while increasing the resetting and limiting functions, avoiding excessive increase in the size of the support body, and being economical.

[0060] (6) The shock-absorbing support has simple structure and is convenient to manufacture and install.

[0061] The shock-absorbing limiting cable assembly comprises a plurality of shock-absorbing cables 7, the ends of the shock-absorbing cables 7 are fixed in the rope groove one 4 through a cable anchoring assembly, and the remaining parts of the shock-absorbing cables 7 are in sliding connection with the rope groove one 4.

[0062] Further, the upper seat plate 2, the lower seat plate 3 and the shock-absorbing cables 7 for bearing and limiting installed in the rope groove one 4 are connected into a whole, and the shock-absorbing cables 7 are reserved with reasonable seismic displacement between the upper seat plate 2 and the lower seat plate 3; during an earthquake, the upper seat plate 2 and the lower seat plate 3 will have relative displacement, the shock-absorbing cables 7 have elasticity, and the shock-absorbing function can be realized and the occurrence of beam collapse disaster can be effectively prevented.

[0063] It should be noted that the diameter of the rope groove one 4 is determined according to the diameter of the shock-absorbing cable 7 and the number of shock-absorbing cables 7 contained in each rope groove one 4 (generally 1 or 2), and the size of the rope groove one 4 should be slightly larger than the product of the diameter of the shock-absorbing cable 7 and the number of shock-absorbing cables 7, so as to ensure that the shock-absorbing cable 7 can freely slide in the rope groove one 4 along the axial direction.

[0064] The self-resetting cable assembly comprises a self-resetting cable 8 and an elastic element, the end of the self-resetting cable 8 is fixed in the rope groove two 5 through a cable anchoring assembly, and the remaining part of the self-resetting cable 8 is in sliding connection with the rope groove two 5, the elastic element is at least one, and the elastic element is installed in one body with the self-resetting cable 8, and the diameter of the self-resetting cable 8 is smaller than the diameter of the shock-absorbing cable 7.

[0065] Working principle of the self-resetting cable assembly:

[0066] Initially, the self-resetting cable 8 is bent at the point where it is attached to the elastic element. During an earthquake, the upper seat plate 2 and the lower seat plate 3 will undergo relative displacement. Both the upper seat plate 2 and the lower seat plate 3 will pull the self-resetting cable 8 and the elastic element, causing the elastic element to be stretched. The bent section of the self-resetting cable 8 will also be stretched along with the elastic element. At this time, the elastic element has elastic potential energy. After the earthquake, there may be residual displacement in the support body. At this time, the high elasticity of the elastic element will restore the bent section of the self-resetting cable 8 that has been stretched to its original shape and tighten it again in the second rope groove 5, thereby eliminating the residual displacement of the support and realizing the self-resetting function of the support.

[0067] Since the design load-bearing capacity of the self-resetting cable assembly only needs to overcome the friction of the support body, the self-resetting cable 8 in the self-resetting cable assembly can be designed with a smaller load-bearing capacity. For example, if a self-resetting cable 8 with good flexibility and small diameter is selected, it is convenient to carry out standardized manufacturing. The number of self-resetting cable assemblies can be reasonably increased or decreased to meet the reset requirements of supports of different tonnages.

[0068] Specifically, the shape of the first rope groove 4 is generally rectangular, while the second rope groove 5 can be set as either rectangular or circular, depending on the shape of the elastic element 10 after covering the bent section of the self-resetting cable 8.

[0069] The elastic element includes a highly elastic rubber element 12, on which a curved hole 13 is opened. The self-resetting cable 8 passes through the curved hole 13 and is fixed together with the highly elastic rubber element 12.

[0070] In this embodiment, as Figure 2 , 3 As shown in Figure 5, the high-elasticity rubber element 12 and the bending section of the self-resetting cable 8 are combined into an integral structure. There is no relative displacement between the two. When the support body is displaced, the bending section of the self-resetting cable 8 is gradually stretched into a straight shape, and the elastic element covering the bending section of the self-resetting cable 8 is also stretched and deformed at the same time. The two deform together to meet the seismic displacement requirements of the support body.

[0071] In another embodiment, such as Figure 13 As shown, the self-resetting cable 8 is woven into a loop. High-elasticity rubber elements 12 are provided in the rope grooves 5 in the upper seat plate 2 and the lower seat plate 3. Both high-elasticity rubber elements 12 wrap the self-resetting cable 8. The wrapped part of the self-resetting cable 8 is designed as a curved section. This design is suitable for situations with relatively large earthquake displacement.

[0072] Guide sliders 14 are installed on both sides of the inner wall of rope groove 2 5 and near the outer edge. The guide sliders 14 are slidably connected to the self-resetting cable 8.

[0073] Furthermore, such as Figure 3As shown, the purpose of setting the guide slider 14 is to limit the displacement of the high elastic rubber element 12 on the one hand, to ensure that it is always located in the second rope groove 5, and on the other hand, to ensure that the self-resetting cable 8 can extend from the center of the second rope groove 5.

[0074] It should be noted that the displacement of the bending section of the self-resetting cable 8 located in the curved hole 13 is greater than the ultimate displacement of the damping and limiting cable assembly, the deformation of the high-elasticity rubber element 12 is greater than or equal to the ultimate displacement required by the support body during an earthquake, and the load value of the high-elasticity rubber element 12 is greater than or equal to the frictional force of the support self-resetting. The purpose is that when an earthquake occurs, the damping and limiting cable assembly bears the seismic force, while the self-resetting cable assembly does not bear the seismic force, which can prevent the self-resetting cable assembly from being damaged during an earthquake.

[0075] The elastic element includes several butterfly springs 9, which are fixed together to form a butterfly spring assembly. A self-resetting cable 8 passes through the butterfly spring assembly and is detachably connected to it.

[0076] In this embodiment, as Figure 7 , 9 As shown in Figure 11, the connection between the self-resetting cable 8 and the butterfly spring assembly can be achieved by a snap-fit ​​or by a chain, or by other detachable connection methods. When the support body undergoes normal displacement or displacement caused by an earthquake, the butterfly spring assembly is gradually compressed, and the resulting compression deformation provides the displacement required by the support body for the self-resetting cable 8. After the earthquake, the butterfly spring assembly gradually returns to its original state and tightens the self-resetting cable 8, thereby eliminating the residual displacement of the support body and realizing the self-resetting function of the support body.

[0077] In another embodiment, such as Figure 8 As shown, both the upper seat plate 2 and the lower seat plate 3 have a butterfly spring assembly in the rope groove 5, and both butterfly spring assemblies wrap the self-resetting cable 8. The wrapped part of the self-resetting cable 8 is in a relaxed state. This design is suitable for situations with relatively large earthquake displacement.

[0078] Preferably, if the diameter of the self-resetting cable 8 is smaller than the diameter of the damping and limiting cable 7 during the design, the deformation of the butterfly spring assembly must be slightly greater than the limit displacement of the damping and limiting cable assembly. The purpose is that when an earthquake occurs, the damping and limiting cable assembly bears the seismic force, while the self-resetting cable assembly does not bear the seismic force, thus preventing the self-resetting cable assembly from being damaged during an earthquake.

[0079] It should be noted that the deformation of the disc spring assembly is greater than or equal to the limit displacement required by the support body during an earthquake, and the load value of the disc spring assembly is greater than or equal to the frictional force of the support's self-resetting.

[0080] The rope groove two 5 includes a middle section b and two outer edge sections a, the middle section b is circular in cross section, the outer edge sections a are rectangular in cross section, and the butterfly spring assembly is located in the middle section b, which is designed to limit the butterfly spring assembly in the middle section b to prevent the butterfly spring assembly from escaping out of the rope groove two 5.

[0081] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, and they should all be covered in the scope of the claims of the present application.

Claims

1. A self-resetting cable damping bearing, characterized in that, include: The support body, the shock-absorbing and limiting cable assembly, and the self-resetting cable assembly are provided in multiple units and are all installed on the support body; The support body includes an upper support plate (2) and a lower support plate (3) distributed vertically. The upper support plate (2) and the lower support plate (3) are each provided with several rope grooves (4) and several rope grooves (5) on their sides. The shock-absorbing and limiting cable assembly is inserted into the two corresponding rope grooves (4) and slidably connected to them. The self-resetting cable assembly is inserted into the two corresponding rope grooves (5) and slidably connected to them. The ends of the shock-absorbing and limiting cable assembly and the self-resetting cable assembly are fixed with cable anchoring assemblies. Several cable anchoring assemblies are respectively fixed in several rope grooves (4) and several rope grooves (5). The shock-absorbing and limiting cable assembly includes several shock-absorbing cables (7), the ends of several shock-absorbing cables (7) are fixed in the first rope groove (4) by the cable anchoring assembly, and the remaining parts of several shock-absorbing cables (7) are slidably connected to the first rope groove (4); The self-resetting cable assembly includes a self-resetting cable (8) and an elastic element. The end of the self-resetting cable (8) is fixed in the second rope groove (5) by a cable anchoring assembly, and the rest of the self-resetting cable (8) is slidably connected to the second rope groove (5). At least one elastic element is provided, and the elastic element is installed in one piece with the self-resetting cable (8). The diameter of the self-resetting cable (8) is smaller than the diameter of the shock-absorbing cable (7). The elastic element includes a high elastic rubber element (12), on which a curved hole (13) is opened, and the self-resetting cable (8) passes through the curved hole (13) and is fixed together with the high elastic rubber element (12); Guide sliders (14) are installed on both sides of the inner wall of the second rope groove (5) and near the outer edge. The guide sliders (14) are slidably connected to the self-resetting cable (8). The elastic element includes several butterfly springs (9), which are fixed together to form a butterfly spring assembly. The self-resetting cable (8) passes through the butterfly spring assembly and is detachably connected to it.

2. The self-resetting cable damping support according to claim 1, characterized in that: The displacement of the bending section of the self-resetting cable (8) located in the curved hole (13) is greater than the limit displacement of the damping and limiting cable assembly. The deformation of the high elastic rubber element (12) is greater than or equal to the limit displacement required by the support body during an earthquake, and the load value of the high elastic rubber element (12) is greater than or equal to the friction force of the support self-resetting.

3. The self-resetting cable damping support according to claim 1, characterized in that: The deformation of the butterfly spring assembly is greater than or equal to the limit displacement required by the support body during an earthquake, and the load value of the butterfly spring assembly is greater than or equal to the frictional force of the support's self-resetting.

4. A self-resetting cable damping support according to claim 3, characterized in that: The second rope groove (5) includes a middle section (b) and two outer edge sections (a). The middle section (b) has a circular cross-section, and the outer edge sections (a) have a rectangular cross-section. The butterfly spring assembly is located inside the middle section (b).

5. A self-resetting cable damping support according to claim 1, characterized in that: The upper seat plate (2) has a sliding plate (6) fixed at its bottom. The lower seat plate (3) has an intermediate seat plate (11) fixed on its upper surface by a slot. The upper end of the intermediate seat plate (11) is slidably connected to the sliding plate (6). Sleeve bolts (1) are vertically inserted at the four corners of the surfaces of the upper seat plate (2) and the lower seat plate (3).

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