Broadband control vibration double-control tuned liquid damper device with failure protection mechanism

Abstract

The utility model relates to a broadband vibration control double-control tuned liquid damper device with a failure protection mechanism, which comprises a double-curvature variable friction pendulum supporting unit, a vibration / vibration control unit, a vibration / vibration control unit, a vibration / vibration control unit and a vibration / vibration control unit, wherein the double-curvature variable friction pendulum supporting unit is arranged above a structure needing vibration / vibration control; the supporting steel platform is arranged above the double-curvature variable friction pendulum supporting unit; the tuned liquid damper body is arranged above the supporting steel platform, and the tuned liquid damper body is used for controlling the wind vibration response of the structure; the collision buffers are arranged at the two ends of the side face of the supporting steel platform, and the collision buffers are used for buffering and limiting under the extremely rare earthquake large-displacement working condition. Compared with the prior art, the broadband vibration control double-control tuned liquid damper device can be used for wind vibration control and has a good earthquake reduction effect, and the situation that when a rare earthquake or even an extremely rare earthquake occurs, the displacement of the damper is too large, and consequently a system fails can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of wind and earthquake vibration control technology for civil engineering buildings / structures, and in particular to a broadband control dual-control tuned liquid damper device with a failure protection mechanism. Background Technology

[0002] The comfort issues of existing high-rise and tall buildings under wind-induced vibrations are becoming increasingly prominent due to climate and environmental changes. High-rise or tall buildings will vibrate under wind loads, and excessive vibration acceleration can cause discomfort or panic among residents and workers. Therefore, improving the comfort of existing high-rise and tall buildings is an effective means of ensuring building quality. Furthermore, with a deeper understanding of seismic vibrations, the response and damage of high-rise and tall buildings under long-period, long-duration seismic excitation are more pronounced than those of multi-story buildings. Improving the safety of existing high-rise and tall buildings under this type of seismic excitation without requiring entry into residences or affecting usability is essential. Installing tuned mass dampers with a specific mass ratio on the top floor of buildings can simultaneously control wind-induced vibrations and seismic activity, without requiring entry into residences for reinforcement and without affecting normal building use, showing promising application prospects.

[0003] Tuned liquid dampers are among the most commonly used tuned mass dampers in engineering. For existing high-rise and tall buildings / structures, vibration reduction can be achieved by appropriately modifying fire water tanks and domestic water tanks, offering advantages such as low cost, minimal operational space, and simple maintenance. However, existing tuned liquid dampers are often used for wind-induced vibration control, exhibiting lower control efficiency under earthquake conditions, and the effective mass utilization rate of the water tank is relatively low.

[0004] Chinese patent CN219992781U discloses a multi-cavity tuned liquid damper, which includes a water tank containing water. N parallel cavity partitions, where N is a natural number greater than or equal to 1, are arranged within the water tank. The partitions divide the internal space of the water tank into N+1 cavities along the orthogonal direction of water sloshing. The water in each cavity is completely separated by the partitions, resulting in differences in water depth between the cavities. A damping enhancement device is installed in each cavity to block the sloshing water. The liquid mass in the water tank can be divided into pulsating mass and convective mass. However, the tuned liquid damper described in this patent primarily utilizes the convective mass, therefore the effective mass utilization rate of the water tank in this patent is relatively low. Utility Model Content

[0005] The purpose of this invention is to provide a broadband controlled dual-tuned liquid damper device with a failure protection mechanism. This broadband controlled dual-tuned liquid damper device can be used for wind-induced vibration control and also has a good earthquake reduction effect. It can prevent the system from failing due to excessive displacement of the damper in the event of rare or even extremely rare earthquakes.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A broadband controlled vibration dual-tuned liquid damper device with a failure protection mechanism includes:

[0008] A hypercurvature variable friction pendulum support unit is positioned above the structure requiring vibration / vibration control.

[0009] A supporting steel platform is positioned above the hypercurvature variable friction pendulum support unit;

[0010] A tuned liquid damper body is disposed above a supporting steel platform, and the tuned liquid damper body is used to control the structural wind vibration response;

[0011] The collision buffer is located at both ends of the side of the supporting steel platform. The collision buffer is used for buffering and limiting under extremely rare earthquake large displacement conditions.

[0012] Furthermore, the tuned liquid damper body includes a water tank and a grid, with multiple grids disposed inside the water tank. The grids are arranged horizontally or vertically with the cross-section of the water tank, and the grids are used to enhance energy dissipation.

[0013] Furthermore, the tank structure is selected from various forms such as cuboid or cylinder, and the material of the tank is selected from concrete or stainless steel.

[0014] Furthermore, the grille is made of stainless steel.

[0015] As a preferred technical solution, the first-order array of the tuning structure is controlled by adjusting the size of the water tank. The specific control method is as follows:

[0016] First, based on the vibration reduction performance target, accurately determine the required mass (m) of the tuning fluid. c Secondly, based on the first-order frequency of the structure, the height-to-length ratio (h / L) of the swaying direction is accurately calculated; then, taking into full account the spatial constraints of the water tank installation location, the width (B) of the water tank is reasonably determined. Combining these three key parameters with the density of the liquid, the dimensions of the water tank can be accurately designed.

[0017] For a rigid rectangular water tank (tank length L, tank width B, liquid depth h, density ρ), the fundamental circular frequency ω of the liquid sloshing is... cTotal mass of liquid m t Convection mass m c and pulse quality m i They are respectively:

[0018]

[0019] m t =ρbhL

[0020]

[0021] m i =m t -m c

[0022] In the formula, g is the acceleration due to gravity.

[0023] By incorporating grates to increase the damping ratio of the tuned liquid damper, vibration control under wind conditions can be achieved. Generally, the thickness of the grates has a relatively small impact on the sloshing frequency of the liquid inside the tank and the resulting damping; however, excessively thick grates may affect the quality of the liquid, so they should not be designed to be too thick. In contrast, the number of grates significantly affects the sloshing damping of the liquid; therefore, their number must be precisely determined based on relevant optimization design formulas to achieve the best results.

[0024] As a preferred technical solution, the bar can be designed to be installed vertically along the length and width of the water tank, or horizontally along the height of the water tank, depending on the size of the water tank and the vibration control requirements.

[0025] When the lower hyperbolic variable friction pendulum support unit undergoes horizontal displacement, the water tank will also undergo horizontal displacement, causing the internal liquid to undergo convection and pulsating fluid sloshing motion. During the sloshing process, the liquid collides and rubs against the internal grid of the water tank, which can significantly enhance the energy dissipation capacity of the liquid and increase the damping ratio of the device. The grid also serves to raise the liquid sloshing wave height, preventing the internal liquid from splashing out when the water tank displacement is too large.

[0026] Furthermore, a base is provided below the double curvature variable friction pendulum support unit, and the base is fixedly installed on the structure that needs to be vibrated / vibrated.

[0027] Furthermore, the hyperbolic variable friction pendulum support unit includes an upper seat plate, a spherical cap, a lower seat plate, an upper intermediate plate, and a lower intermediate plate.

[0028] The top end of the upper seat plate is fixedly connected to the supporting steel platform, and the bottom end of the upper seat plate is slidably connected to the top end of the upper intermediate plate.

[0029] The bottom end of the lower base plate is fixedly connected to the base, and the top end of the lower base plate is slidably connected to the bottom end of the lower middle plate.

[0030] A spherical crown is provided between the upper and lower intermediate plates, and the upper and lower ends of the spherical crown are slidably connected to the upper and lower intermediate plates, respectively.

[0031] Furthermore, the bottom end of the upper seat plate is provided with a second-order upper sliding surface, which is slidably connected to the top end of the upper intermediate plate.

[0032] The bottom end of the upper intermediate plate is provided with an upper sliding surface, which is slidably connected to the top of the spherical cap.

[0033] The top of the lower seat plate is provided with a second-order lower sliding surface, which is slidably connected to the bottom end of the lower intermediate plate.

[0034] The top of the lower intermediate plate is provided with a first-stage sliding surface, which is slidably connected to the bottom of the spherical cap.

[0035] Furthermore, the upper seat plate is fixedly connected to the supporting steel platform via an anchoring assembly;

[0036] The lower plate is fixedly connected to the base via an anchoring assembly.

[0037] As a preferred technical solution, the anchoring component is an anchor bolt.

[0038] As a preferred technical solution, the curvature radii of the first-order upper sliding surface and the first-order lower sliding surface are determined by the higher-order array of the tuning structure: assuming that the frequency corresponding to the higher-order mode to be tuned is w, then the curvature radius R = g / w^2, where g is the gravitational acceleration.

[0039] The friction coefficients of the first-order upper and lower sliding surfaces are typically small, usually between 0.01 and 0.03, and can be designed according to the seismic reduction requirements of the structure under frequent and design-intensity earthquakes. The friction coefficient is related to the equivalent damping ratio of the device, and the optimal equivalent damping ratio can be determined based on the fixed-point theory from the tuning mass ratio μ of the target. ζ=2μR / (πD+μπR), where D is the support deformation and R is the support radius of curvature.

[0040] The friction coefficients of the first-order upper sliding surface and the first-order lower sliding surface mainly play a role in damping vibration and consuming energy, and improving the robustness of the tuning system.

[0041] The radii of curvature of the second-order upper and lower sliding surfaces are typically about 0.8 times that of the first-order upper and lower sliding surfaces. The coefficients of friction of the second-order upper and lower sliding surfaces are typically 2-3 times that of the first-order upper and lower sliding surfaces (usually between 0.05 and 0.10). The radii of curvature and coefficients of friction of the second-order upper and lower sliding surfaces can be designed to prevent failure under rare earthquakes. The coefficients of friction can be obtained through trial calculations and iterations with a set second-order radius of curvature. The radii of curvature and coefficients of friction of the second-order upper and lower sliding surfaces mainly control the displacement of the system under rare earthquakes to meet the requirements and prevent failure.

[0042] Furthermore, the upper seat plate, lower seat plate, upper middle plate, and lower middle plate are all provided with limiting protrusions at their left and right edges;

[0043] When the main structure experiences horizontal vibration under wind load or seismic action, the spherical cap will first slide between the first-order upper sliding surface and the first-order lower sliding surface;

[0044] When the vibration amplitude increases, the spherical cap will contact the limiting protrusion at the edge of the first-order upper sliding surface or the first-order lower sliding surface, and drive the first-order upper sliding surface and the first-order lower sliding surface to slide on the corresponding second-order upper sliding surface or the second-order lower sliding surface.

[0045] Furthermore, the supporting steel platform is surrounded by structural reaction walls, and the collision buffer is located between the supporting steel platform and the structural reaction walls. The selection of the collision buffer can be based on the goal of not failing under extremely rare earthquakes, that is, the energy dissipation capacity of the collision buffer should be greater than the energy of the device colliding with the structural reaction walls under extremely rare earthquakes.

[0046] When the horizontal displacement of the hypercurvature variable friction pendulum support unit is too large, the collision buffers on both sides of the support steel platform that move together with it will first collide with the structural reaction wall and limit the horizontal displacement of the tuned liquid damper body, preventing the water tank of the tuned liquid damper body from overturning.

[0047] Furthermore, the collision buffer adopts a high-damping rubber support or a hydraulic buffer system.

[0048] The principle of this utility model is as follows:

[0049] The wideband control described in this invention is achieved mainly through the following two aspects: First, the introduction of vibration isolation bearings can significantly increase the mass of the liquid involved in tuning, and a larger tuning mass can effectively improve the robustness of the vibration reduction system, thereby achieving wider bandwidth control; Second, this device has two motion frequencies, one is the horizontal motion frequency of the bearing, and the other is the sloshing frequency of the liquid in the water tank. By tuning these two frequencies to different target frequencies, synchronous control of the two frequencies can be achieved, thereby realizing the wideband control effect.

[0050] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0051] 1. This utility model provides a vibration dual-control tuned liquid damper with a failure protection mechanism. It uses a tuned liquid damper to control the wind vibration response. Compared with ordinary supported tuned mass dampers, it has the characteristics of good start-up and high vibration reduction efficiency.

[0052] 2. This utility model provides a dual-control tuned liquid damper with a failure protection mechanism, employing a double-curvature variable friction pendulum support, which broadens the control bandwidth of the tuned liquid damper. Compared with ordinary tuned liquid dampers, it significantly improves the utilization efficiency of the water tank mass, thus it can be used not only for wind vibration control but also for seismic vibration control, enabling a single system to perform multiple functions.

[0053] 3. This utility model provides a vibration dual-control tuned liquid damper with a failure protection mechanism. It adopts a double curvature variable friction pendulum support and a limiting buffer to ensure that the displacement of the structure is controllable under rare earthquakes or even extremely rare earthquakes, while not hindering the movement of the mass block under small loads to ensure the overall vibration reduction / vibration reduction effect of the entire damper.

[0054] 4. This invention establishes a dual tuning mechanism and multiple energy absorption and dissipation pathways. By controlling the planar dimensions of the water tank, the liquid level, and the installation of a grid, it transfers and dissipates the vibration energy input to the structure by wind. By controlling the radius of curvature and friction coefficient of the variable friction pendulum under small displacements, it transfers and dissipates the energy input to the structure by frequent earthquakes and earthquakes of design intensity. By reducing the radius of curvature of the variable friction pendulum under large displacements and increasing the friction coefficient, it prevents the water tank from undergoing excessive displacement under rare earthquakes, which could lead to system failure. This invention establishes a triple multi-level tuning mechanism, featuring dual-control multi-level triggering of vibration and shock, wide vibration absorption control bandwidth, and no failure under rare earthquakes, making it highly valuable for widespread application.

[0055] 5. Compared with existing technologies, this invention focuses on the synergistic effect of the water tank and the seismic isolation bearing. By introducing the seismic isolation bearing, it effectively overcomes the significant defect of traditional tuned liquid dampers—where only a portion of the liquid mass in the container participates in the tuning and vibration reduction process. The addition of the seismic isolation bearing allows all the liquid in the container to slosh around, thus fully participating in the tuning process. Therefore, this design fully utilizes the mass of all the liquid in the water tank for tuning, greatly improving the vibration control effect. Attached Figure Description

[0056] Figure 1 A schematic diagram of a vibration dual-control tuned liquid damper with a failure protection mechanism provided in an embodiment of this utility model.

[0057] Figure 2 A schematic diagram of a tuned liquid damper unit provided in an embodiment of this utility model.

[0058] Figure 3 A schematic diagram of a hyperbolic variable friction pendulum support unit provided in an embodiment of this utility model.

[0059] Explanation of the attached figures: 1. Base; 2. Hypercurvature variable friction pendulum support unit; 3. Support steel platform; 4. Tuned liquid damper body; 5. Collision buffer; 6. Structural reaction wall; 21. Anchoring assembly; 22. Upper seat plate; 23. Second-order upper sliding surface; 24. First-order upper sliding surface; 25. Spherical cap; 26. First-order lower sliding surface; 27. Second-order lower sliding surface; 28. Lower seat plate; 29. ​​Upper intermediate plate; 210. Lower intermediate plate; 41. Water tank; 42. Grille. Detailed Implementation

[0060] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0061] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0062] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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 on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0063] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model according to the specific circumstances.

[0064] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0065] Example 1

[0066] See Figures 1 to 3 This embodiment provides a wideband controlled vibration dual-tuned liquid damper device with a failure protection mechanism, comprising:

[0067] The hypercurvature variable friction pendulum support unit 2 is positioned above the structure requiring vibration / vibration control.

[0068] Supporting steel platform 3 is located above the hypercurvature variable friction pendulum support unit 2;

[0069] The tuned liquid damper body 4 is located above the supporting steel platform 3 and is used to control the structural wind vibration response.

[0070] The collision buffer 5 is located at both ends of the side of the supporting steel platform 3. The collision buffer 5 is used for buffering and limiting under extremely rare earthquake large displacement conditions.

[0071] In this embodiment, the tuned liquid damper body 4 includes a water tank 41 and a grid 42. A plurality of grids 42 are disposed inside the water tank 41. The grids 42 are arranged horizontally or vertically with the cross-section of the water tank 41. The grids 42 are used to enhance energy dissipation.

[0072] In this embodiment, the water tank 41 has a cuboid structure, the water tank 41 is made of concrete, and the grille 42 is made of stainless steel.

[0073] In this embodiment, by controlling the size of the water tank 41 to tune the first-order array of the structure, the first-order circular frequency of the structure is 3.14 rad / s, and the required tuning mass is 10 tons. When h / L = 0.05, the liquid sloshing frequency is 3.10 rad / s. Let the width of the water tank 41 be B = 3m, then the length of the water tank 41 can be calculated to be 8.16m, and the liquid height inside the water tank 41 is 0.4m. Considering the sloshing of the liquid, the height of the water tank 41 can be designed to be about 1m.

[0074] By setting up grids 42, the damping ratio of the tuned liquid damper body 4 is improved, thereby achieving vibration control of the structure under wind vibration. Two 2cm thick grids 42 are set vertically at 1 / 3 and 2 / 3 of the length.

[0075] In this embodiment, a base 1 is provided below the double curvature variable friction pendulum support unit 2, and the base 1 is fixedly installed on the structure that needs to be vibrated / vibrated.

[0076] In this embodiment, the hyperbolic variable friction pendulum support unit 2 includes an upper seat plate 22, a spherical cap 25, a lower seat plate 28, an upper intermediate plate 29, and a lower intermediate plate 210.

[0077] The top end of the upper seat plate 22 is fixedly connected to the supporting steel platform 3, and the bottom end of the upper seat plate 22 is slidably connected to the top end of the upper intermediate plate 29.

[0078] The bottom end of the lower base plate 28 is fixedly connected to the base 1, and the top end of the lower base plate 28 is slidably connected to the bottom end of the lower intermediate plate 210.

[0079] A spherical crown 25 is provided between the upper intermediate plate 29 and the lower intermediate plate 210, and the upper and lower ends of the spherical crown 25 are slidably connected to the upper intermediate plate 29 and the lower intermediate plate 210, respectively.

[0080] In this embodiment, the bottom end of the upper seat plate 22 is provided with a second-order upper sliding surface 23, which is slidably connected to the top end of the upper intermediate plate 29.

[0081] The bottom end of the upper intermediate plate 29 is provided with a stepped upper sliding surface 24, which is slidably connected to the top end of the spherical cap 25.

[0082] The lower base plate 28 has a second-order lower sliding surface 27 at its top, and the second-order lower sliding surface 27 is slidably connected to the bottom end of the lower intermediate plate 210.

[0083] The lower intermediate plate 210 has a first-step lower sliding surface 26 at its top, and the first-step lower sliding surface 26 is slidably connected to the bottom end of the spherical cap 25.

[0084] In this embodiment, the upper seat plate 22 is fixedly connected to the supporting steel platform 3 through the anchoring assembly 21;

[0085] The lower base plate 28 is fixedly connected to the base 1 via the anchoring assembly 21.

[0086] In this embodiment, the radii of curvature of the first-order upper sliding surface 24 and the first-order lower sliding surface 26 are determined by the higher-order array of the tuned structure. Assuming the second-order frequency of the structure is 4.1 rad / s, the radii of curvature of the first-order upper sliding surface 24 and the first-order lower sliding surface 26 can be taken as 0.60 m.

[0087] The friction coefficients of the first-order upper sliding surface 24 and the first-order lower sliding surface 26 are usually small. They can be designed according to the damping design target requirements of the structure under frequent and design intensity earthquakes. Assuming the tuning mass ratio is 0.01, the friction coefficient can be calculated to be approximately 0.018.

[0088] The radii of curvature of the second-order upper sliding surface 23 and the second-order lower sliding surface 27 are usually about 0.8 times the radii of curvature of the first-order upper sliding surface 24 and the first-order lower sliding surface 26. In this example, the radii of curvature of the second-order upper sliding surface 23 and the second-order lower sliding surface 27 can be taken as 500mm.

[0089] The friction coefficients of the second-order upper sliding surface 23 and the second-order lower sliding surface 27 are typically 2-3 times that of the friction coefficients of the first-order upper sliding surface 24 and the first-order lower sliding surface 26. The radius of curvature and friction coefficient of the second-order upper sliding surface 23 and the second-order lower sliding surface 27 can be designed according to the goal of not failing under rare earthquakes. In this embodiment, the friction coefficient can be taken as 0.05.

[0090] In this embodiment, limiting protrusions are provided at the left and right edges of the upper seat plate 22, lower seat plate 28, upper middle plate 29 and lower middle plate 210;

[0091] When the main structure vibrates horizontally under wind load or seismic action, the spherical cap 25 will first slide between the first-order upper sliding surface 24 and the first-order lower sliding surface 26;

[0092] When the vibration amplitude increases, the spherical cap 25 will contact the limiting protrusion on the edge of the first-order upper sliding surface 24 or the first-order lower sliding surface 26, and drive the first-order upper sliding surface 24 and the first-order lower sliding surface 26 to slide on the corresponding second-order upper sliding surface 23 or the second-order lower sliding surface 27.

[0093] In this embodiment, structural reaction walls 6 are provided around the supporting steel platform 3, and the collision buffer 5 is located between the supporting steel platform 3 and the structural reaction walls 6. The selection of the collision buffer 5 can be based on the goal of not failing under extremely rare earthquakes. In this embodiment, the stroke is 50mm and the maximum energy absorption is 3200J / min.

[0094] When the horizontal displacement of the hypercurvature variable friction pendulum support unit 2 is too large, the collision buffers 5 on both sides of the support steel platform 3 that move together with it will first collide with the structural reaction wall 6, and limit the horizontal displacement of the tuned liquid damper body 4, preventing the water tank 41 of the tuned liquid damper body 4 from overturning.

[0095] In this embodiment, the collision buffer 5 adopts a high-damping rubber support.

[0096] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A broadband controlled vibration dual-controlled tuned liquid damper device with a failure protection mechanism, characterized in that, include: A double curvature variable friction pendulum support unit (2) is located above the structure that requires vibration / vibration control; Support steel platform (3), which is located above the hyperbolic variable friction pendulum support unit (2); A tuned liquid damper body (4) is located above the supporting steel platform (3), and the tuned liquid damper body (4) is used to control the wind vibration response of the structure. Collision buffers (5) are provided at both ends of the side of the supporting steel platform (3). The collision buffers (5) are used for buffering and limiting under extremely rare earthquake large displacement conditions.

2. The broadband controlled vibration dual-controlled tuned liquid damper device with failure protection mechanism according to claim 1, characterized in that, The tuned liquid damper body (4) includes a water tank (41) and a grid (42). A plurality of grids (42) are disposed inside the water tank (41). The grids (42) are arranged horizontally or vertically with the cross section of the water tank (41). The grids (42) are used to enhance energy dissipation.

3. A broadband controlled vibration dual-controlled tuned liquid damper device with a failure protection mechanism according to claim 2, characterized in that, The tank (41) has a box structure including a cuboid and a cylinder, and the material of the tank (41) is selected from concrete or stainless steel. The grille (42) is made of stainless steel.

4. A broadband controlled vibration dual-controlled tuned liquid damper device with a failure protection mechanism according to claim 1, characterized in that, The base (1) is provided below the hyperbolic variable friction pendulum support unit (2), and the base (1) is fixedly installed on the structure that needs to be vibrated / vibrated.

5. A broadband controlled vibration dual-tuned liquid damper device with a failure protection mechanism according to claim 4, characterized in that, The hyperbolic variable friction pendulum support unit (2) includes an upper seat plate (22), a spherical cap (25), a lower seat plate (28), an upper intermediate plate (29), and a lower intermediate plate (210). The top end of the upper seat plate (22) is fixedly connected to the supporting steel platform (3), and the bottom end of the upper seat plate (22) is slidably connected to the top end of the upper intermediate plate (29). The bottom end of the lower base plate (28) is fixedly connected to the base (1), and the top end of the lower base plate (28) is slidably connected to the bottom end of the lower intermediate plate (210). A spherical crown (25) is provided between the upper intermediate plate (29) and the lower intermediate plate (210), and the upper and lower ends of the spherical crown (25) are slidably connected to the upper intermediate plate (29) and the lower intermediate plate (210) respectively.

6. A broadband controlled vibration dual-controlled tuned liquid damper device with a failure protection mechanism according to claim 5, characterized in that, The bottom end of the upper seat plate (22) is provided with a second-order upper sliding surface (23), which is slidably connected to the top end of the upper middle plate (29). The bottom end of the upper intermediate plate (29) is provided with an upper sliding surface (24), which is slidably connected to the top end of the spherical cap (25). The lower base plate (28) has a second-order lower sliding surface (27) at its top, and the second-order lower sliding surface (27) is slidably connected to the bottom end of the lower intermediate plate (210). The top of the lower intermediate plate (210) is provided with a first-level lower sliding surface (26), which is slidably connected to the bottom end of the spherical cap (25).

7. A broadband controlled vibration dual-controlled tuned liquid damper device with a failure protection mechanism according to claim 5, characterized in that, The upper seat plate (22) is fixedly connected to the supporting steel platform (3) through the anchoring assembly (21); The lower base plate (28) is fixedly connected to the base (1) by the anchoring assembly (21).

8. A broadband controlled vibration dual-controlled tuned liquid damper device with a failure protection mechanism according to claim 5, characterized in that, Limiting protrusions are provided at the left and right edges of the upper seat plate (22), lower seat plate (28), upper middle plate (29) and lower middle plate (210).

9. A broadband controlled vibration dual-tuned liquid damper device with a failure protection mechanism according to claim 1, characterized in that, The supporting steel platform (3) is surrounded by structural reaction walls (6), and the collision buffer (5) is located between the supporting steel platform (3) and the structural reaction walls (6).

10. A broadband controlled vibration dual-controlled tuned liquid damper device with a failure protection mechanism according to claim 1, characterized in that, The collision buffer (5) adopts a high-damping rubber support or a hydraulic buffer system.

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