Axle force protection tuned inertial mass damper

Abstract

The application discloses a kind of axial force protection type tuning inertia mass damper, it is related to building aseismatic structure technical field, including: rotary damping device;Elastic device, one end of elastic device is connected with the other end of rotary damping device;Axial force protection device, axial force protection device includes first protection device end plate, second protection device end plate, protection device clamped plate and two protection device clamping plates, first protection device end plate is connected with the other end of elastic device, protection device clamped plate is connected with first protection device end plate, two protection device clamping plates are connected by clamping bolt and clamp protection device clamped plate, second protection device end plate is connected with two protection device clamping plates.According to the axial force protection type tuning inertia mass damper of the embodiment of the application, the damage caused to itself or surrounding structure by excessive output can be prevented, with good reliability, strong energy dissipation capacity, high adaptability and other advantages.

Description

Technical Field

[0001] This invention relates to the field of seismic-resistant building structure technology, and more specifically, to an axial force-protected tuned inertial mass damper. Background Technology

[0002] A tuned inertial-mass damper is composed of an inertial mass unit and a damping unit connected in parallel, which are then connected in series with a spring unit. The tuned inertial-mass damper can effectively control both inter-story displacement and floor acceleration, providing significant additional damping to the structure under small deformations, thereby enhancing the structure's post-earthquake functional recoverability and seismic toughness.

[0003] Tuned mass dampers in related technologies, such as the invention patent with publication number CN113202202A, achieve mass by converting the axial linear velocity of the device into rotational angular velocity through structures such as ball screws, and then generating inertial force from the moment of inertia of the rotating components. They can achieve an apparent mass magnified by hundreds or thousands of times with a small physical mass. However, due to their extremely large apparent mass and gain damping, they generate large inertial and damping forces. Under the excitation of the tuning frequency, the components of the damper resonate and move in opposite phase. The amplified displacement further amplifies the device's response force. Excessive device damping force may damage the device itself and the surrounding connecting structures. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an axial force-protected tuned inertial mass damper, which can prevent excessive output force from causing damage to itself or surrounding structures, and has the advantages of high reliability, strong energy dissipation capacity, and high adaptability.

[0005] To achieve the above objectives, an axial force-protected tuned inertial-mass damper is provided according to an embodiment of the present invention. The axial force-protected tuned inertial-mass damper includes: a rotational damping device, one end of which is adapted to be connected to a building structure; an elastic device, one end of which is connected to the other end of the rotational damping device; and an axial force protection device, comprising a first protection device end plate, a second protection device end plate, a protection device clamping plate, and two protection device clamping plates. The first protection device end plate is connected to the other end of the elastic device, the second protection device end plate is adapted to be connected to a building structure, and the protection device clamping plate is connected to the first protection device end plate. The end plates are connected, and the two clamping plates of the protection device are connected by clamping bolts and clamp the clamped plate of the protection device. The second end plate of the protection device is connected to the two clamping plates of the protection device. The axial force protection device is configured to adjust the clamping force of the two clamping plates of the protection device on the clamped plate of the protection device by adjusting the preload of the clamping bolts, so as to adjust the axial force limit of the axial force protection device. When the axial output force does not reach the axial force limit, the clamping plates of the protection device and the clamped plate of the protection device remain relatively stationary. When the axial output force reaches the axial force limit, the clamping plates of the protection device and the clamped plate of the protection device slide relative to each other.

[0006] The axial force-protected tuned inertial mass damper according to embodiments of the present invention can prevent excessive output force from causing damage to itself or surrounding structures, and has the advantages of high reliability, strong energy dissipation capacity and high adaptability.

[0007] In addition, the axial force-protected tuned inertial mass damper according to the above embodiments of the present invention may also have the following additional technical features:

[0008] According to one embodiment of the present invention, both of the protective device clamping plates are C-shaped plates and each of the protective device clamping plates includes two parallel plates and a vertical plate connecting the two parallel plates, and the two vertical plates clamp the protective device clamped plate.

[0009] According to one embodiment of the present invention, the axial force protection device further includes two protection device adapter plates, the two protection device adapter plates being perpendicular to and connected to the second protection device end plate, the protection device adapter plates being parallel to the parallel plate, and each protection device adapter plate being connected to the parallel plate of the two protection device clamping plates respectively.

[0010] According to one embodiment of the present invention, the elastic device is a rubber spring.

[0011] According to one embodiment of the present invention, the elastic device includes: a spring end plate connected to the end plate of the first protective device; a plurality of spring clamping plates connected to the other end of the rotational damping device; a plurality of spring clamping plates, the plurality of spring clamping plates and the plurality of spring clamping plates being alternately arranged in the thickness direction, the spring clamping plates being perpendicular to the spring end plate and connected to the spring end plate; and a plurality of rubber interlayers, the rubber interlayers being clamped between each adjacent spring clamping plate and the spring clamping plate.

[0012] According to one embodiment of the present invention, the elastic device further includes two spring adapter plates, both of which are connected to the spring end plate and are arranged in parallel and spaced apart. The spring adapter plates are perpendicular to the spring end plate and the spring clamping plate, and each spring clamping plate is connected to the two spring adapter plates respectively.

[0013] According to one embodiment of the present invention, the spring is connected to an ear plate on the clamping plate, the ear plate is provided with an ear hole, and the elastic device is pivotally connected to the rotational damping device by means of a pin fitted in the ear hole.

[0014] According to one embodiment of the present invention, the rotary damping device includes: an outer cylinder, one end of which is adapted to be connected to a building structure; an inner cylinder, which is rotatably fitted within the outer cylinder relative to the outer cylinder; a lead screw nut, which is mounted on the inner cylinder; an adjusting mass mounting section, which is connected to the inner cylinder and extends out of the outer cylinder; a flywheel, which is mounted on the adjusting mass mounting section and located outside the outer cylinder; a lead screw, which is threadedly engaged with the lead screw nut; and a rotary damping end plate, which is connected to one end of the elastic device and one end of the lead screw, respectively.

[0015] According to one embodiment of the present invention, a magnet is provided on one of the outer peripheral surface of the inner cylinder and the inner peripheral surface of the outer cylinder and a copper plate is provided on the other, wherein the magnet and the copper plate are configured to generate an eddy current damping effect when they rotate relative to each other.

[0016] According to one embodiment of the present invention, the lead screw includes a threaded section and a non-threaded section, and the rotational damping device further includes: a guide sleeve, the guide sleeve and the lead screw nut being located at opposite ends of the inner cylinder, the non-threaded section passing through the inner cylinder and axially movable within the guide sleeve; a limiting sleeve, the limiting sleeve being fitted at the connection between the threaded section and the non-threaded section, the limiting sleeve being configured to stop the lead screw to prevent the threaded section from disengaging from the lead screw nut; a first linear bearing, the first linear bearing being located between the inner circumferential surface of the outer cylinder and the outer circumferential surface of the guide sleeve; and a second linear bearing, the second linear bearing being located between the inner circumferential surface of the outer cylinder and the outer circumferential surface of the adjusting mass mounting section.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the structure of an axial force-protected tuned inertial mass damper according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the axial force protection device for an axial force protection type tuned inertial mass damper according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the protection device clamping plate and the protection device clamped plate of the axial force protection device of the axial force protection type tuned inertial mass damper according to an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the elastic device of the axial force-protected tuned inertial mass damper according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the elastic device of the axial force-protected tuned inertial mass damper according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the rotational damping device of the axial force-protected tuned inertial mass damper according to an embodiment of the present invention;

[0025] Figure 7 This is a cross-sectional view of the rotational damping device of the axial force-protected tuned inertial mass damper according to an embodiment of the present invention.

[0026] Reference numerals in the attached figures: 1. Axial force protected tuned inertial mass damper; 10. Rotary damping device; 11. Outer cylinder; 12. Inner cylinder; 13. Lead screw nut; 14. Adjustable mass mounting section; 15. Flywheel; 16. Lead screw; 17. Rotary damping end plate; 18. Guide sleeve; 19. Limiting sleeve; 110. First linear bearing; 111. Second linear bearing; 20. Elastic device; 21. Spring end plate; 22. Spring clamping plate; 23. Spring clamping plate; 24. Rubber interlayer; 25. Spring adapter plate; 26. Ear plate; 30. Axial force protection device; 31. First protection device end plate; 32. Second protection device end plate; 33. Protection device clamping plate; 34. Protection device adapter plate; 35. Clamping bolt; 36. Threaded fastener; 37. Detailed Implementation

[0027] This application is based on the findings and understanding of the following facts and issues:

[0028] In related technologies, tuned mass dampers achieve inertia by converting the axial linear velocity of the device into rotational angular velocity through structures such as ball screws. The inertial force is then generated by the moment of inertia of the rotating components. This allows for the amplification of apparent mass by hundreds or thousands of times with a relatively small physical mass. However, due to the extremely large apparent mass and the large inertial and damping forces generated by the gain damping, the components of the damper resonate and move in opposite phases under the excitation of the tuned frequency. The amplified displacement further amplifies the device's response force. Excessive device damping force may damage the device itself and the surrounding connecting structures.

[0029] Furthermore, since tuned mass dampers have extremely high apparent mass, the stiffness of tuned mass dampers obtained by tuning design is often extremely high. However, the spring units of tuned mass dampers in related technologies use metal springs, which have insufficient adjustable stiffness range. The number of springs that can be installed in the damping device is also limited, making it difficult to achieve such a high design stiffness.

[0030] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] The axial force-protected tuned inertial mass damper 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0034] like Figures 1-7 As shown, the axial force protected tuned inertial mass damper 1 according to an embodiment of the present invention includes a rotational damping device 10, an elastic device 20, and an axial force protection device 30.

[0035] One end of the rotational damping device 10 is adapted to be connected to the building structure. One end of the elastic device 20 is connected to the other end of the rotational damping device 10. The axial force protection device 30 includes a first protection device end plate 31, a second protection device end plate 32, a protection device clamping plate 33, and two protection device clamping plates 34. The first protection device end plate 31 is connected to the other end of the elastic device 20. The second protection device end plate 32 is adapted to be connected to the building structure. The protection device clamping plate 33 is connected to the first protection device end plate 31. The two protection device clamping plates 34 are connected by clamping bolts 36 and clamp the protection device clamping plate 33. The second protection device end plate 32 is connected to the two... The two protective device clamping plates 34 are connected together. The axial force protection device 30 is configured to adjust the clamping force of the two protective device clamping plates 34 on the clamped plate 33 of the protective device by tightening or loosening the clamping bolts 36, so as to adjust the axial force limit of the axial force protection device 30. When the axial output force does not reach the axial force limit, the protective device clamping plate 34 and the clamped plate 33 of the protective device remain relatively stationary. When the axial output force reaches the axial force limit, the protective device clamping plate 34 and the clamped plate 33 of the protective device slide relative to each other.

[0036] Specifically, the rotational damping device 10 is used to provide inertial mass and damping energy dissipation, converting horizontal motion into rotational motion, thereby using the physical mass of a small component to generate an apparent mass magnified hundreds or thousands of times, forming a large inertial force and damping force.

[0037] The elastic device 20 is used to provide the axial design stiffness of the device. Under the excitation of external dynamic load, the rotational damping device 10 and the elastic device 20 partially undergo anti-phase motion, so that the displacement of the rotational damping device 10 and the elastic device 20 is greater than the total displacement of the axial force protected tuned inertial mass damper 1, thereby increasing the energy dissipation capacity of the device and realizing the displacement amplification effect.

[0038] By adjusting the preload of the clamping bolt 36, the clamping force of the clamping plate 34 of the protection device on the clamped plate 33 of the protection device can be adjusted, thereby adjusting the magnitude of the axial force that causes relative sliding between the clamped plate 33 of the protection device and the clamping plate 34 of the protection device, and thus adjusting the axial force limit of the axial force protection device 30.

[0039] When the axial output force of the axial force protection type tuned inertial mass damper 1 does not reach the limit of the axial force protection device 30, the axial force protection device 30 does not work. The clamping plate 34 of the protection device and the clamped plate 33 of the protection device remain relatively stationary. The axial force protection device 30 is equivalent to a rigid body as a whole. The movement phase of the elastic device 20 is earlier than that of the axial force protection device 30, while the movement phase of the rotational damping device 10 is later than that of the elastic device 20.

[0040] When the axial output force of the axial force protection type tuned inertial mass damper 1 reaches the limit value of the axial force protection device 30, the axial force protection device 30 starts to work. The clamping plate 34 of the protection device slides relative to the clamped plate 33 of the protection device, thereby limiting the overall axial output force of the axial force protection type tuned inertial mass damper 1.

[0041] When the total output force of the axial force protection type tuned inertial mass damper 1 reaches the sliding friction force of the axial force protection device 30, the axial force protection device 30 undergoes sliding friction and limits the output force below a preset limit. At the same time, the sliding friction provides energy dissipation. This allows the axial force protection device 30 to improve the energy dissipation capacity of the axial force protection type tuned inertial mass damper 1 while reducing the total output force, thus achieving both axial force protection and energy dissipation effects.

[0042] The clamping plate 33 of the protective device is perpendicular to the end plate 31 of the first protective device. The end plate 31 of the first protective device is parallel to the end plate 32 of the second protective device.

[0043] The protective device clamping plate 34 and the protective device clamped plate 33 may be provided with through holes, through which clamping bolts 36 can pass to connect the two protective device clamping plates 34. The through holes on the protective device clamped plate 33 may have a large diameter or be elongated holes to facilitate relative movement between the protective device clamped plate 33 and the protective device clamping plate 34.

[0044] According to an embodiment of the present invention, the axial force protection type tuned inertial mass damper 1 is provided with an axial force protection device 30, which uses a protection device clamping plate 34 to clamp the protection device clamped plate 33, and the clamping preload is adjusted by adjusting the clamping bolt 36, thereby adjusting the axial force limit of the axial force protection device 30. When the total output of the axial force protection type tuned inertial mass damper 1 reaches the axial force limit of the axial force protection device 30, the protection device clamped plate 33 and the protection device clamping plate 34 of the axial force protection device 30 generate relative motion and provide energy dissipation, while limiting the output of the axial force protection type tuned inertial mass damper 1 to be less than or equal to the protection limit. Compared to tuned mass dampers in related technologies, this device can achieve axial force protection, preventing excessive output from the tuned mass damper due to amplified apparent mass and gain damping, which could damage itself and surrounding structural components. This significantly improves the reliability and durability of the device. Moreover, when the output reaches the preset limit, the axial force protection device 30 dissipates energy through sliding friction, further enhancing the energy dissipation capacity of the device and preventing structural overload. While meeting the mechanical performance requirements of high-rise buildings, it also has extremely high flexibility and adaptability, effectively coping with the diversity of work objects and structural differences, and has excellent tuning and vibration reduction capabilities.

[0045] Therefore, the axial force protection type tuned inertial mass damper 1 according to the embodiment of the present invention can prevent excessive output force from causing damage to itself or the surrounding structure, and has the advantages of good reliability, strong energy consumption capacity and high adaptability.

[0046] The axial force-protected tuned inertial mass damper 1 according to a specific embodiment of the present invention is described below with reference to the accompanying drawings.

[0047] In some specific embodiments of the present invention, such as Figures 1-7 As shown, the axial force protected tuned inertial mass damper 1 according to an embodiment of the present invention includes a rotational damping device 10, an elastic device 20, and an axial force protection device 30.

[0048] Specifically, such as Figure 2 and Figure 3 As shown, both protective device clamping plates 34 are C-shaped plates, and each protective device clamping plate 34 includes two parallel plates and a vertical plate connecting the two parallel plates. The two vertical plates clamp the protective device clamped plate 33. This helps to ensure the rigidity of the protective device clamping plate 34, prevents deformation of the protective device clamping plate 34 from affecting the clamping force on the protective device clamped plate 33, and ensures the reliability of clamping the protective device clamped plate 33.

[0049] More specifically, such as Figure 2 As shown, the axial force protection device 30 also includes two protection device adapter plates 35. The two adapter plates 35 are perpendicular to and connected to the second protection device end plate 32. The adapter plates 35 are parallel to the parallel plates, and each adapter plate 35 is connected to the parallel plates of the two protection device clamping plates 34. Specifically, the adapter plates 35 and the clamping plates 34 are connected by threaded fasteners 37. After the clamping bolts 36 are adjusted, the threaded fasteners 37 are fully tightened to prevent relative movement between the adapter plates 35 and the clamping plates 34. This facilitates the connection between the clamping plates 34 and the second protection device end plate 32, making it easier to transmit axial force.

[0050] Figure 1 , Figure 4 and Figure 5 An axial force-protected tuned inertial mass damper 1 according to some examples of the present invention is shown. For example... Figure 4 and Figure 5As shown, the elastic device 20 is a rubber spring. Compared with the tuned inertial mass damper using metal springs in related technologies, the rubber spring has a wider range of adjustable stiffness, which is convenient for meeting the high mechanical performance requirements of the axial force protection tuned inertial mass damper 1 in high-rise buildings. For example, the design stiffness can reach hundreds of thousands of kilonewtons per meter. This avoids the problems of insufficient adjustable stiffness range and difficulty in achieving maximum design stiffness in the tuned inertial mass damper using metal springs in related technologies. Moreover, the rubber spring has better corrosion resistance and oil resistance, and is easy to customize, which broadens the application range of the axial force protection tuned inertial mass damper 1 in different engineering scenarios.

[0051] Specifically, such as Figure 4 and Figure 5 As shown, the elastic device 20 includes a spring end plate 21, multiple spring clamping plates 22, multiple spring holding plates 23, and multiple rubber interlayers 24. The spring end plate 21 is connected to the end plate 31 of the first protective device. The spring clamping plates 22 are connected to the other end of the rotational damping device 10. Specifically, when the spring clamping plates 22 transmit horizontal movement, the rubber interlayers 24 deform and provide stiffness. The multiple spring holding plates 23 and multiple spring clamping plates 22 are alternately arranged in the thickness direction, and the spring clamping plates 23 are perpendicular to the spring end plate 21 and connected to the spring end plate 21. A rubber interlayer 24 is clamped between each adjacent spring clamping plate 23 and spring clamping plate 22. This allows for flexible adjustment of the stiffness of the elastic device 20 by adjusting the thickness, area, and number of layers of the rubber interlayers 24.

[0052] More specifically, such as Figure 4 and Figure 5 As shown, the elastic device 20 also includes two spring adapter plates 25. Both spring adapter plates 25 are connected to the spring end plate 21 and are arranged parallel to each other. The spring adapter plates 25 are perpendicular to the spring end plate 21 and the spring clamping plate 23. Each spring clamping plate 23 is connected to the two spring adapter plates 25 respectively. This facilitates the connection between the spring clamping plate 23 and the spring end plate 21, and facilitates the transmission of axial force.

[0053] Furthermore, such as Figure 1 , Figure 4 and Figure 5 As shown, the spring is held by a clamping plate 22 and has an ear plate 26. The ear plate 26 has an ear hole. The elastic device 20 is pivotally connected to the rotary damping device 10 through a pin that fits in the ear hole. This facilitates the connection between the elastic device 20 and the rotary damping device 10, and facilitates the transmission of axial force.

[0054] Specifically, the ear plate 26 is welded to the spring clamping plate 23, ensuring a smooth weld. The rubber interlayer 24 can be made of neoprene rubber to further ensure corrosion resistance and oil resistance. The spring adapter plate 25 is welded to the spring end plate 21, ensuring a smooth weld.

[0055] Figure 6 and Figure 7 An axial force-protected tuned inertial mass damper 1 according to some examples of the present invention is shown. For example... Figure 6 and Figure 7 As shown, the rotary damping device 10 includes an outer cylinder 11, an inner cylinder 12, a lead screw and nut 13, an adjusting mass mounting section 14, a flywheel 15, a lead screw 16, and a rotary damping end plate 17. One end of the outer cylinder 11 is adapted to be connected to a building structure. The inner cylinder 12 is rotatably fitted inside the outer cylinder 11 relative to the outer cylinder 11. The lead screw and nut 13 are mounted on the inner cylinder 12. The adjusting mass mounting section 14 is connected to the inner cylinder 12 and extends out of the outer cylinder 11. The flywheel 15 is mounted on the adjusting mass mounting section 14 and located outside the outer cylinder 11. The lead screw 16 is threadedly engaged with the lead screw and nut 13. The rotary damping end plate 17 is connected to one end of the elastic device 20 and one end of the lead screw 16, respectively. Specifically, the mass inertia can be adjusted by adjusting the mass of the adjusting mass mounting section 14 and the flywheel 15. In this way, the axial movement of the lead screw 16 can be converted into the rotation of the lead screw nut 13 through the threaded engagement between the lead screw 16 and the lead screw nut 13. The rotation of the lead screw nut 13 drives the inner cylinder 12, the adjusting mass mounting section 14 and the flywheel 15 to rotate together. The rotation generates inertial force, which provides inertial mass for the rotation damping device 10, thereby amplifying the smaller physical mass into a larger apparent mass.

[0056] Specifically, such as Figure 7 As shown, a magnet is provided on one of the outer circumferential surfaces of the inner cylinder 12 and the inner circumferential surface of the outer cylinder 11, and a copper plate is provided on the other. The magnet and copper plate are constructed to generate an eddy current damping effect during relative rotation. In this way, damping energy can be achieved by cutting magnetic lines of force through rotational motion, and the tuning damping performance and efficiency can be improved through displacement amplification effect.

[0057] More specifically, the lead screw 16 includes a threaded section and a non-threaded section, and the rotational damping device 10 further includes a guide sleeve 18, a limiting sleeve 19, a first linear bearing 110, and a second linear bearing 111. The guide sleeve 18 and the lead screw nut 13 are located at opposite ends of the inner cylinder 12, and the non-threaded section passes through the inner cylinder 12 and is axially movable within the guide sleeve 18. The limiting sleeve 19 is fitted at the connection between the threaded and non-threaded sections, and is configured to stop the lead screw 16 to prevent the threaded section from disengaging from the lead screw nut 13. The first linear bearing 110 is located between the inner circumferential surface of the outer cylinder 11 and the outer circumferential surface of the guide sleeve 18. The second linear bearing 111 is located between the inner circumferential surface of the outer cylinder 11 and the outer circumferential surface of the adjusting mass mounting section 14. This provides guidance and limitation for the movement of the lead screw 16, making its movement smoother.

[0058] Other configurations and operations of the axial force-protected tuned inertial mass damper 1 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An axial force-protected tuned inertial mass damper, characterized in that, include: A rotational damping device, one end of which is adapted to be connected to a building structure; An elastic device, one end of which is connected to the other end of the rotational damping device; An axial force protection device includes a first protection device end plate, a second protection device end plate, a protection device clamping plate, and two protection device clamping plates. The first protection device end plate is connected to the other end of an elastic device. The second protection device end plate is adapted to be connected to a building structure. The protection device clamping plate is connected to the first protection device end plate. The two protection device clamping plates are connected by clamping bolts and clamp the protection device clamping plate. The second protection device end plate is connected to the two protection device clamping plates. The axial force protection device is configured to adjust the clamping force of the two protection device clamping plates on the protection device clamping plate by adjusting the magnitude of the preload applied by the clamping bolts, thereby adjusting the axial force limit of the axial force protection device. When the axial output force does not reach the axial force limit, the clamping plate of the protection device and the clamped plate of the protection device remain relatively stationary. When the axial output force reaches the axial force limit, the clamping plate of the protection device and the clamped plate of the protection device slide relative to each other. Both clamping plates of the protection device are C-shaped plates, and each clamping plate of the protection device includes two parallel plates and a vertical plate connecting the two parallel plates. The two vertical plates clamp the clamped plate of the protection device. The axial force protection device also includes two protection device adapter plates. The two protection device adapter plates are perpendicular to the end plate of the second protection device and connected to the end plate of the second protection device. The protection device adapter plates are parallel to the parallel plates, and each protection device adapter plate is connected to the parallel plates of the two clamping plates of the protection device respectively.

2. The axial force-protected tuned inertial mass damper according to claim 1, characterized in that, The elastic device is a rubber spring.

3. The axial force-protected tuned inertial mass damper according to claim 2, characterized in that, The elastic device includes: A spring end plate, which is connected to the end plate of the first protective device; Multiple springs are held by clamping plates, and the springs are held by clamping plates are connected to the other end of the rotary damping device; Multiple spring clamping plates and multiple spring clamping plates are alternately arranged in the thickness direction, and the spring clamping plates are perpendicular to the spring end plates and connected to the spring end plates; Multiple rubber interlayers are sandwiched between each adjacent spring clamping plate and spring clamped plate.

4. The axial force-protected tuned inertial mass damper according to claim 3, characterized in that, The elastic device further includes two spring adapter plates, both of which are connected to the spring end plate and are arranged in parallel and spaced apart. The spring adapter plates are perpendicular to the spring end plate and the spring clamping plate, and each spring clamping plate is connected to the two spring adapter plates respectively.

5. The axial force-protected tuned inertial mass damper according to claim 3, characterized in that, The spring is attached to a clamping plate with an ear plate and an ear hole. The elastic device is pivotally connected to the rotational damping device via a pin fitted in the ear hole.

6. The axial force-protected tuned inertial mass damper according to claim 1, characterized in that, The rotational damping device includes: An outer cylinder, one end of which is adapted to be connected to a building structure; An inner cylinder, which is rotatably fitted within the outer cylinder relative to the outer cylinder; A lead screw nut, which is mounted on the inner cylinder; An adjustable mass mounting section is connected to the inner cylinder and extends out of the outer cylinder; A flywheel, which is mounted on the adjustable mass mounting section and located outside the outer cylinder; A lead screw, wherein the lead screw is threadedly engaged with a lead screw nut; A rotating damping end plate is connected to one end of the elastic device and one end of the lead screw.

7. The axial force-protected tuned inertial mass damper according to claim 6, characterized in that, A magnet is provided on one of the outer circumferential surfaces of the inner cylinder and the inner circumferential surface of the outer cylinder, and a copper plate is provided on the other. The magnet and the copper plate are configured to generate an eddy current damping effect when they rotate relative to each other.

8. The axial force-protected tuned inertial mass damper according to claim 6, characterized in that, The lead screw includes a threaded section and a non-threaded section, and the rotation damping device further includes: A guide sleeve and a lead screw nut are located at opposite ends of the inner cylinder, and the non-threaded section passes through the inner cylinder and is axially movable within the guide sleeve. A limiting sleeve is fitted at the connection between the threaded section and the non-threaded section, and the limiting sleeve is configured to stop the screw to prevent the threaded section from disengaging from the screw nut. A first linear bearing is located between the inner circumferential surface of the outer cylinder and the outer circumferential surface of the guide sleeve; The second linear bearing is located between the inner circumferential surface of the outer cylinder and the outer circumferential surface of the adjusting mass mounting section.

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