Friction damping-disc spring self-resetting support and construction method

Abstract

A friction damping-disc spring self-resetting support comprises a sleeve, a disc spring, a pressed limiting plate, a pulled limiting plate and a resetting-friction device. The reset-friction device is parallel to the sleeve in the length direction, and a brass friction plate is arranged in the middle of the reset-friction device. The number of the disc springs, the number of the pressed limiting plates and the number of the pulled limiting plates are all two, the pressed limiting plates and the pulled limiting plates are installed on the sleeve and the reset-friction device, and the two pressed limiting plates are located between the two pulled limiting plates. The brass friction plate is located between the two pressed limiting plates, and the disc spring is arranged on the sleeve in a sleeving mode and located between the pressed limiting plates and the pulled limiting plate. The functions of dissipating earthquake energy and self-resetting are achieved by means of compression and recovery of the disc spring, and meanwhile, relative displacement can be generated through friction damping, and friction energy dissipation is achieved. And the internal structure of the support is simple, the usage amount of steel is greatly reduced, and the bearing capacity and lateral stiffness of the reinforced structure can be improved.

Description

Technical Field

[0001] The present invention belongs to the field of construction technology, and particularly relates to a friction damping-disc spring self-resetting support and a construction method thereof. Background Art

[0002] Traditional reinforcement support forms include ordinary steel supports, buckling-restrained braces, and reset energy-dissipating braces, etc. However, these reinforcement supports have the following limitations: the internal structure of the support is complex; the positions between internal components are relatively precise, and slight errors can greatly reduce the working effect of the support; the steel consumption is large and the cost is high. Summary of the Invention

[0003] In order to overcome the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide a friction damping-disc spring self-resetting support, which dissipates seismic energy and self-resets by means of the compression and restoration of the disc spring. At the same time, the friction damping can generate relative displacement and dissipate energy through friction. Moreover, the internal structure of the support of the present invention is simple, greatly saving the amount of steel used, and can improve the bearing capacity and lateral stiffness of the reinforced structure.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0005] A friction damping-disc spring self-resetting support, comprising a sleeve, a disc spring, a compression limiting plate, a tension limiting plate, and a reset-friction device;

[0006] The reset-friction device is arranged parallel to the sleeve along the length direction, and a brass friction plate is arranged in the middle of the reset-friction device;

[0007] There are two of each of the disc spring, the compression limiting plate, and the tension limiting plate. The compression limiting plate and the tension limiting plate are installed on the sleeve and the reset-friction device, and the two compression limiting plates are located between the two tension limiting plates; the brass friction plate is located between the two compression limiting plates, and the disc spring is sleeved on the sleeve and located between the compression limiting plate and the tension limiting plate.

[0008] In one embodiment, the number of the reset-friction devices is two, which are symmetrically arranged about the axis of symmetry of the sleeve and have a spacing from the sleeve. The plate surfaces of the brass friction plates of the two reset-friction devices are in the same plane.

[0009] In one embodiment, each reset-friction device has two sections, and symmetrically arranged long holes along the length direction are opened at the connection ends of the two sections. A round hole is opened on the brass friction plate. The brass friction plate is installed at the connection ends of the two sections by passing a first high-strength bolt through the long hole and the round hole, and a pre-tightening force is applied; the reset-friction device undergoes relative displacement under the bi-directional tension and compression of the support. By means of this relative displacement, the brass friction plate and the reset-friction device dissipate energy through friction.

[0010] In one embodiment, both ends of the sleeve are round-section rods with a diameter equal to the inner diameter of the disc spring, and the middle part is a round-section rod with a diameter slightly smaller than the outer diameter of the disc spring, so as to realize the function of restricting the displacement of the compression limiting plate under the condition of supporting compression; two second high-strength bolts are installed on the sleeve, and each second high-strength bolt is located outside one tension limiting plate, and is used to apply a pre-tightening force to the disc spring.

[0011] In one embodiment, two compression limiting stiffeners and two tension limiting stiffeners are arranged on the reset-friction device. The two compression limiting stiffeners are arranged outside the two tension limiting plates and are in close contact with the tension limiting plates. The two tension limiting stiffeners are arranged inside the two compression limiting plates and are in close contact with the compression limiting plates; the inner side is the side close to the support center, and the outer side is the side far from the support center.

[0012] In one embodiment, the compression limiting plate is a rectangular steel plate with a round hole opened at the center and rectangular holes opened respectively above and below the round hole. The diameter of the round hole is the same as the diameter of the round-section rods at both ends of the sleeve. The size of the rectangular holes can enable the reset-friction device to pass through and is not larger than the sizes of the tension limiting stiffeners and the compression limiting stiffeners;

[0013] The tension limiting plate is a rectangular steel plate with a round hole opened at the center and rectangular holes opened respectively above and below the round hole. The diameter of the round hole is the same as the diameter of the round-section rods at both ends of the sleeve. The size of the rectangular holes can enable the reset-friction device to pass through and is not larger than the lengths of the tension limiting stiffeners and the compression limiting stiffeners.

[0014] In one embodiment, under the compression working condition, the two compression limiting stiffeners force the tension limiting plate on the same side to displace towards the inside of the support, driving the disc springs on both sides to compress towards the inside of the support to realize energy dissipation; after the pressure ends, the compression deformation of the disc springs resumes, realizing self-reset;

[0015] Under the tension working condition, the two tension limiting stiffeners force the compression limiting plate on the same side to displace towards the outside of the support, driving the disc springs on both sides to compress towards the outside of the support to realize energy dissipation; after the tension ends, the compression deformation of the disc springs resumes, realizing self-reset.

[0016] In one embodiment, both ends of the reset-friction device are connected to the connecting section, and the connecting section is used to connect with the object to be strengthened.

[0017] The present invention also provides an installation method for the friction damping-disc spring self-resetting support, and the steps are as follows:

[0018] Step 1: First, insert the two compression limiting plates into the sleeve respectively and place them in the middle of the sleeve. Then, insert the disc springs into both sides of the sleeve in the designed arrangement order. Next, insert the two tension limiting plates into the sleeve through the round holes at their centers respectively and closely attach them to the outermost sides of the disc springs.

[0019] Step 2: Pass the reset-friction device through the symmetrically arranged compression limiting plates and tension limiting plates respectively. Place and install the brass friction plate in the middle of the reset-friction device, and finally weld the connecting sections at both ends of the reset-friction device.

[0020] In one embodiment, in Step 1, insert two second high-strength bolts into both ends of the sleeve respectively, and apply a pre-tightening force towards the center on the outer sides of the two tension limiting plates; in Step 2, apply a pre-tightening force to the reset-friction device and the brass friction plate by using the first high-strength bolt; and symmetrically weld the tension limiting stiffeners at the inner positions of the two compression limiting plates in the length direction of the reset-friction device, and symmetrically weld the compression limiting stiffeners at the outer positions of the two tension limiting plates.

[0021] Compared with the prior art, the present invention can achieve good energy dissipation effects under both tensile and compressive conditions, and can achieve self-reset after the tensile and compressive actions are completed. Description of the Drawings

[0022] Figure 1 is the overall schematic diagram (angle one) of the friction damping-disc spring self-resetting support of the present invention.

[0023] Figure 2 is the overall schematic diagram (angle two) of the friction damping-disc spring self-resetting support of the present invention.

[0024] Figure 3 is the schematic diagram of the structural form of the friction damping-disc spring self-resetting support of the present invention.

[0025] Figure 4 is the side view of the friction damping-disc spring self-resetting support of the present invention.

[0026] Figure 5 is the top view of the friction damping-disc spring self-resetting support of the present invention.

[0027] Figure 6 is the schematic diagram of the disc spring-sleeve structural form of the present invention.

[0028] Figure 7 is the schematic diagram of the structural form of the reset-friction device and the limiting stiffeners of the present invention.

[0029] Icons: Support - 1; Sleeve - 2; Disc spring - 3; Compression limit plate - 4; Tension limit plate - 5; Second high-strength bolt - 6; Reset - friction device - 7; Brass friction plate - 8; First high-strength bolt - 9; Tension limit stiffener - 10; Compression limit stiffener - 11; Connection section - 12. Detailed implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. Components of the embodiments of this application usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of this application that is claimed, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts fall within the scope of protection of this application.

[0032] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed during use. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0034] As Figures 1 to 7 shown, the present invention is a friction damping - disc spring self - reset support. The support 1 mainly includes a sleeve 2, a disc spring 3, a compression limit plate 4, a tension limit plate 5, a reset - friction device 7, etc.

[0035] Among them, the sleeve 2 is parallel to the reset - friction device 7 in the length direction, and the two are arranged side by side. A brass friction plate 8 is provided in the middle of the reset - friction device 7.

[0036] There are two disc springs 3, compression limit plates 4 and tension limit plates 5. The compression limit plates 4 and the tension limit plates 5 are both installed on the sleeve 2 and the reset-friction device 7 at the same time, and the two compression limit plates 4 are located between the two tension limit plates 5; the brass friction plate 8 is located between the two compression limit plates 4. The disc springs 3 are sleeved on the sleeve 2, and the two disc springs 3 are respectively located between a compression limit plate 4 and a tension limit plate 5.

[0037] According to the above structure, through the reset-friction device 7 inside the support 1, it can be ensured that the disc springs 3 are in a compressed state under both tensile and compressive forces, achieving the goal of dissipating seismic energy and self-resetting. At the same time, the brass friction plate 8 provided inside the reset-friction device 7 can be used as a friction damper to dissipate seismic energy during the relative displacement of the reset-friction device 7.

[0038] In the embodiment of the present invention, the number of reset-friction devices 7 is two, which are symmetrically arranged about the axis of symmetry of the sleeve 2 and have a spacing from the sleeve 2. The plate surfaces of the brass friction plates 8 of the two reset-friction devices 7 are in the same plane, realizing symmetry in the operation under compression or tension conditions.

[0039] In the embodiment of the present invention, the reset-friction device 7 can be a variable cross-section rod. Its structure is that each reset-friction device 7 has two sections. The two sections are connection ends in the "inner" direction close to the support 1. Here, "inner" refers to the direction close to the center. Symmetrically arranged long holes along the length direction are opened at the connection ends. Correspondingly, round holes are opened on the brass friction plate 8. By passing the first high-strength bolt 9 through the long holes and the round holes, the installation of the brass friction plate 8 at the connection end is realized. Obviously, the brass friction plate 8 is located in the middle position of the reset-friction device 7, and the first high-strength bolt 9 can apply a pre-tightening force to the brass friction plate 8 and the reset-friction device 7. Exemplarily, the connection end can be processed into a U-shaped structure, and the brass friction plate 8 is stuck in the U-shaped structure, and then the first high-strength bolt 9 passes through the two arms of the U-shaped structure and the brass friction plate 8 to realize installation and pre-tightening force application. This U-shaped structure has a friction damper that can dissipate energy through the friction of the brass friction plate 8. Thus, the reset-friction device 7 can have a relative displacement under the tensile and compressive forces of the support 1. Through this relative displacement, the brass friction plate 8 and the reset-friction device 7 dissipate energy through friction, consuming seismic energy.

[0040] In the embodiment of the present invention, both ends of the sleeve 2 are circular cross-section rods with a diameter the same as the inner diameter of the disc spring 3, and the middle is a circular cross-section rod with a diameter slightly smaller than the outer diameter of the disc spring 3 to achieve the function of restricting the displacement of the compression limit plate 4 under the compression of the support 1.

[0041] Two second high-strength bolts 6 are installed on the sleeve 2 of the present invention. Each second high-strength bolt 6 is located outside a tension-limiting plate 5 and is used to apply a pre-tightening force to the disc spring 3. Further, threading treatment can be performed on the sleeve 2 starting from the outermost sides at both ends of the sleeve 2 to ensure that the second high-strength bolt 6 with a larger diameter has sufficient stroke. The second high-strength bolt 6 is arranged outside the tension-limiting plate 5 through the threaded part on the outside of the sleeve 2. The pre-tightening force is applied to the disc springs 3 on both sides through the second high-strength bolt 6.

[0042] In the embodiment of the present invention, the disc springs 3 are evenly arranged on both sides of the sleeve 2, and their arrangement forms can adopt various forms such as superposition, opposition, and composite combination.

[0043] In the embodiment of the present invention, two compression-limiting stiffeners 11 and two tension-limiting stiffeners 10 are provided on the reset-friction device 7. The two compression-limiting stiffeners 11 are respectively located outside a tension-limiting plate 5 and are in close contact with the tension-limiting plate 5. The two tension-limiting stiffeners 10 are respectively located inside a compression-limiting plate 4 and are in close contact with the compression-limiting plate 4. Similarly, in the present invention, the inner side is defined as the side close to the center of the support 1, and the outer side is defined as the side far from the center of the support 1.

[0044] In the embodiment of the present invention, the compression-limiting plate 4 and the tension-limiting plate 5 have the same structure, and the sizes can be adjusted to be the same or different according to needs. Their shapes should be at least steel plates with round holes and rectangular holes opened on the plates. In this embodiment, a rectangular steel plate is used, and a round hole is opened at the center, and rectangular holes are opened above and below the round hole respectively. The diameter of the round hole is the same as the diameter of the round-section rods at both ends of the sleeve 2 and is used for the sleeve 2 to pass through at both ends. The size of the rectangular hole is the same as the cross-sectional size of the reset-friction device 7 and is used for the reset-friction device 7 to pass through, and is not larger than the maximum cross-sectional size of the tension-limiting stiffener 10 and the compression-limiting stiffener 11, that is, the reset-friction device 7 can pass through, but the tension-limiting stiffener 10 and the compression-limiting stiffener 11 are not allowed to pass through. The specific penetration distance allowed for the tension-limiting stiffener 10 and the compression-limiting stiffener 11 can be designed according to the force requirements.

[0045] The disc spring 3, the sleeve 2, the tension limiting plate 5 and the compression limiting plate 4 form the self - reset component of the support 1. The disc springs 3 can be arranged on both sides of the sleeve in the same arrangement. The sleeve 2 is respectively passed through the round holes of two groups of symmetrically arranged compression limiting plates 4 and tension limiting plates 5, and a pre - tightening force is applied by the high - strength bolts with large diameters on the outer sides of the two tension limiting plates 5. A pre - tightening force is applied to the brass friction plate 8 arranged in the middle of the reset - energy dissipation device 7 through the high - strength bolts with small diameters, and friction energy dissipation occurs during the relative displacement of the reset - energy dissipation device. In the present invention, the symmetrically arranged reset - energy dissipation devices 7 respectively pass through the rectangular holes of the compression limiting plates 4 and the tension limiting plates 5, and the compression limiting stiffeners 11 and the tension limiting stiffeners 10 are welded on the outer sides of the two tension limiting plates and the inner sides of the two compression limiting plates respectively. In the present invention, the tension limiting stiffeners 10 and the compression limiting stiffeners 11 can force the compression limiting plates 4 and the tension limiting plates 5 to drive the disc springs 3 at both ends of the sleeve 2 to be compressed in the two - way state of the support, so as to achieve the effect of dissipating seismic energy and realizing self - reset. The present invention can be applied to building structures to effectively reduce the input of seismic energy into the main structure and reduce the residual deformation of the structure.

[0046] In the embodiment of the present invention, both ends of the reset - friction device 7 are connected to the connecting section 12, and the connecting section 12 is used to directly connect with the object to be strengthened. According to different connection forms, such as bolt connection, hinge connection, etc., different cross - section forms can be adopted for application.

[0047] According to this structural design, the working principle of the present invention is as follows:

[0048] 1. Under the tensile condition, the axial tensile forces at both ends are transmitted to the reset - friction device 7 and the tension limiting stiffeners 10 through the connecting section 12. Therefore, the tension limiting stiffeners 10 force the tension limiting plate 5 to displace outward from the support 1. The tension limiting plate 5 drives the disc spring 3 on the sleeve 2 to produce compressive deformation. At the same time, relative displacement occurs between the two sections of the reset - friction device 7, and friction occurs between the brass friction plate 8 and the reset - friction device 7. The support 1 dissipates seismic energy through the compressive deformation of the disc spring 3 and the friction of the brass friction plate 8, and after the tension ends, the compressive deformation of the disc spring 3 and the relative displacement of the reset - friction device 7 are restored, achieving the seismic - resistant effect of self - reset.

[0049] 2. Under the compressive condition, the axial compressive forces at both ends are transmitted to the reset - friction device 7 and the compression limiting stiffeners 11 through the connecting section 12. Therefore, the compression limiting stiffeners 11 force the compression limiting plate 4 to displace inward from the support 1. The compression limiting plate 4 drives the disc spring 3 on the sleeve 2 to produce compressive deformation. At the same time, relative displacement occurs between the two sections of the reset - friction device 7, and friction occurs between the brass friction plate 8 and the reset - friction device 7. The support 1 dissipates seismic energy through the compressive deformation of the disc spring 3 and the friction of the brass friction plate 8, and after the pressure ends, the compressive deformation of the disc spring 3 and the relative displacement of the reset - friction device 7 are restored, achieving the seismic - resistant effect of self - reset.

[0050] The complete installation steps of the present invention are as follows:

[0051] First, pass the two tension-limiting plates 5 through the round holes at their own centers into the sleeve 2 respectively, and place them at the larger-diameter rod part in the middle of the sleeve 2. Then, pass the disc springs 3 into the rods on both sides of the sleeve 2 with the same inner diameter as the disc springs 3 in the designed arrangement order. Next, pass the two compression-limiting plates 4 through the round holes at their own centers into the sleeve 2 respectively, and press them tightly against the outermost sides of the disc springs 3. Similarly, pass the two large-diameter second high-strength bolts 6 into the sleeve 2 respectively, and apply a pre-tightening force to the large-diameter second high-strength bolts 6. Pass the upper and lower two reset-friction devices 7 through the rectangular holes of the symmetrically arranged compression-limiting plates 4 and tension-limiting plates 5 respectively. Place the brass friction plates 8 in the middle of the two reset-friction devices 7, and apply a pre-tightening force through the small-diameter first high-strength bolts 9. Symmetrically weld the tension-limiting stiffening ribs 10 on both longitudinal sides of the two reset-friction devices 7 and on the inner sides of the two tension-limiting plates 5. Symmetrically weld the compression-limiting stiffening ribs 11 on both longitudinal sides of the two reset-friction devices 7 and on the outer sides of the two compression-limiting plates 4. Finally, at both ends of the support 1, weld the two connecting sections 12 to the upper and lower two reset-friction devices 7 on the same side respectively.

[0052] The present invention can force the disc springs at both ends of the sleeve to be compressed by the tension stiffening ribs and compression stiffening ribs in the two-way state of the support, so as to dissipate seismic energy and achieve the effect of self-resetting. The present invention can effectively reduce the input of seismic energy into the main structure and reduce the residual deformation of the structure when applied to building structures.

Claims

1. A friction damping-disc spring self-resetting support, characterized in that: It comprises a sleeve (2), a disc spring (3), a compression limit plate (4), a tension limit plate (5) and a reset-friction device (7); The reset-friction device (7) is arranged parallel to the sleeve (2) along the length direction, and a brass friction plate (8) is arranged in the middle of the reset-friction device (7); There are two disc springs (3), two compression limit plates (4), and two tension limit plates (5), and the compression limit plates (4) and the tension limit plates (5) are installed on the sleeve (2) and the reset-friction device (7), and the two compression limit plates (4) are located between the two tension limit plates (5); the brass friction plate (8) is located between the two compression limit plates (4), and the disc spring (3) is sleeved on the sleeve (2) and is located between the compression limit plates (4) and the tension limit plates (5).

2. The friction damping-disc spring self-resetting support according to claim 1 is characterized in that: There are two reset-friction devices (7), which are symmetrically arranged about the central axis of the sleeve (2) and have a spacing from the sleeve (2). The plate surfaces of the brass friction plates (8) of the two reset-friction devices (7) are in the same plane.

3. The friction damping-disc spring self-resetting support according to claim 1 or 2, characterized in that: Each of the reset-friction devices (7) has two sections, and the connecting ends of the two sections are provided with symmetrical long holes along the length direction. The brass friction plate (8) is provided with a round hole, and the first high-strength bolt (9) passes through the long hole and the round hole to achieve the installation of the brass friction plate (8) at the connecting end of the two sections and apply a pre-tightening force; the reset-friction device (7) undergoes relative displacement under the bidirectional tension and compression force of the support, and due to this relative displacement, the brass friction plate (8) and the reset-friction device (7) consume friction energy.

4. The friction damping-disc spring self-resetting support according to claim 1 is characterized in that: The two ends of the sleeve (2) are circular cross-section rods with a diameter equal to the inner diameter of the disc spring (3), and the middle is a circular cross-section rod with a diameter slightly smaller than the outer diameter of the disc spring (3), so as to achieve the function of limiting the displacement of the compression limit plate (4) when the support is under pressure; two second high-strength bolts (6) are installed on the sleeve (2), and each second high-strength bolt (6) is located outside a tension limit plate (5) and is used to apply a pre-tightening force to the disc spring (3).

5. The friction damping-disc spring self-resetting support according to claim 1, characterized in that: The reset-friction device (7) is provided with two compression limit stiffening ribs (11) and two tension limit stiffening ribs (10), the two compression limit stiffening ribs (11) are arranged on the outside of the two tension limit plates (5) and are closely attached to the tension limit plates (5), and the two tension limit stiffening ribs (10) are arranged on the inside of the two compression limit plates (4) and are closely attached to the compression limit plates (4); the inside is the side close to the support center, and the outside is the side away from the support center.

6. The friction damping-disc spring self-resetting support according to claim 5, characterized in that: The compression limit plate (4) is a rectangular steel plate with a circular hole at the center and rectangular holes above and below the circular hole. The diameter of the circular hole is the same as the diameter of the circular cross-section rods at both ends of the sleeve (2). The size of the rectangular hole can allow the reset-friction device (7) to pass through and is not larger than the size of the tension limit stiffening rib (10) and the compression limit stiffening rib (11). The tension limiting plate (5) is a rectangular steel plate with a circular hole at the center and rectangular holes above and below the circular hole. The diameter of the circular hole is the same as the diameter of the circular cross-section rods at both ends of the sleeve (2). The size of the rectangular hole can allow the reset-friction device (7) to pass through and is not greater than the length of the tension limiting stiffening rib (10) and the compression limiting stiffening rib (11).

7. The friction damping-disc spring self-resetting support according to claim 5, characterized in that: Under the compressive working condition, the two compressive limiting stiffening ribs (11) force the tensile limiting plate (5) on the same side to move toward the inner side of the support, driving the disc springs (3) on both sides to compress into the inner side of the support to achieve energy dissipation; after the pressure ends, the compression deformation of the disc spring (3) is restored to achieve self-reset; Under tension conditions, the two tension limit stiffening ribs (10) force the compression limit plate (4) on the same side to move toward the outside of the support, driving the disc springs (3) on both sides to be compressed toward the outside of the support to achieve energy dissipation; after the tension ends, the compression deformation of the disc spring (3) is restored to achieve self-reset.

8. The friction damping-disc spring self-resetting support according to claim 1, characterized in that: Both ends of the resetting-friction device (7) are connected to a connecting section (12), and the connecting section (12) is used to be connected to a reinforcement object.

9. The installation method of the friction damping-disc spring self-resetting support according to claim 1 is characterized in that: Here are the steps: Step 1, firstly, insert the two compression limit plates (4) into the sleeve (2) respectively and place them in the middle of the sleeve (2); then, insert the disc spring (3) into both sides of the sleeve (2) in sequence according to the designed arrangement; then, insert the two tension limit plates (5) into the sleeve (2) through the circular holes at their centers respectively and cling to the outermost sides of the disc spring (3); Step 2, pass the reset-friction device (7) through the symmetrically arranged compression limit plate (4) and the tension limit plate (5), place and install the brass friction plate (8) in the middle of the reset-friction device (7), and finally weld the connecting sections (12) at both ends of the reset-friction device (7).

10. The installation method of the friction damping-disc spring self-resetting support according to claim 1, characterized in that: In the step 1, two second high-strength bolts (6) are respectively inserted into the two ends of the sleeve (2), and a pre-tightening force is applied toward the center on the outer sides of the two tension limit plates (5); In the step 2, a pre-tightening force is applied to the reset-friction device (7) and the brass friction plate (8) by using a first high-strength bolt (9); and the tensile limiting stiffening ribs (10) are symmetrically welded in the length direction of the reset-friction device (7) and at the inner positions of the two compressive limiting plates (4), and the compressive limiting stiffening ribs (11) are symmetrically welded at the outer positions of the two tensile limiting plates (5).

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