A three-dimensional frequency-dividing vibration-damping friction pendulum support

Abstract

This application provides a three-dimensional frequency-division vibration-damping friction pendulum support, including a shell, a lateral damping component, and a vertical damping component. The lateral damping component dissipates vibration energy through friction between a slider and a sliding surface. The vertical damping component absorbs vibration energy by frequency division. The vertical damping component includes a friction pendulum upper column, multiple floating plates of varying thicknesses, and filling particles. Vibration is transmitted from the friction pendulum upper column or a vertical pull-out valve plate to the floating plates. Vibrations of different frequencies are transmitted to floating plates of corresponding thicknesses, and then from the floating plates to the filling particles in the vibration chamber. The vibration of the floating plates causes the particles to collide and rub against each other, achieving energy dissipation and vibration reduction. This friction pendulum support can meet the requirements for horizontal vibration reduction and vertical vibration isolation, and can eliminate vibrations of different frequencies by frequency division.

Description

Technical Field

[0001] This application relates to the field of vibration isolation technology for rail transit superstructures, buildings with vibration sources, other equipment and facilities, and specifically to a three-dimensional frequency-division vibration reduction friction pendulum support. Background Technology

[0002] As of early 2023, 52 cities in my country (including county-level cities) had opened urban rail transit systems, with an operating mileage of nearly 10,000 kilometers. At the same time, the development of subway-adjacent buildings has also been rapid. The history of subway-adjacent buildings can be traced back to the late 1980s and early 1990s, in order to utilize underground space and alleviate urban land pressure.

[0003] With the acceleration of urbanization and the increasing demands for quality of life, subway-connected buildings are gradually becoming a new trend in urban development. Currently, subway-connected projects are widespread in major cities across China, becoming an important part of urban construction. During subway operation, the interaction between wheels and rails generates vehicle-induced vibrations. These vibrations significantly impact the comfort of residents within the connected buildings.

[0004] Currently, friction pendulum bearings are the most commonly used damping bearings in China. However, due to their lack of bending resistance, many scholars have made improvements, and the most mature one is the pull-out friction pendulum bearing, which solves the bending resistance problem while retaining the damping characteristics. However, there is still a lack of bearings in China that can provide both lateral seismic resistance during earthquakes and vertical vibration reduction during periods of vibration. Summary of the Invention

[0005] This application proposes a three-dimensional frequency-division vibration-damping friction pendulum support, which can meet the requirements of vibration isolation and seismic isolation in both the horizontal and vertical directions. It solves the problem that current pull-out friction pendulum supports cannot reduce vertical vibration, thus achieving seismic resistance during periods of vibration and vibration reduction during periods of non-vibration.

[0006] This application provides a three-dimensional frequency-division vibration-damping friction pendulum support, comprising: a housing, including an upper cover plate and a lower cover plate that cooperates with the upper cover plate to form an accommodating space; a lateral vibration damping component, disposed on the lower cover plate and located at the lower part of the accommodating space, which consumes lateral vibrations through friction between a slider and a sliding surface; and a vertical vibration damping component, disposed on the lateral vibration damping component and located at the upper part of the accommodating space, for frequency-division absorption of vertical vibrations, wherein the vertical vibration damping component includes a friction pendulum upper column connected to the lateral vibration damping component, multiple vertical anti-pull-out valve plates, and floating elements of different thicknesses. The system includes plates and filler particles. The vertical pull-out valve plates are positioned perpendicular to the bottom surface of the lower cover plate and extend from the cylindrical surface of the upper friction pendulum column towards the edge of the interior of the housing. Multiple vertical pull-out valve plates are evenly distributed around the cylindrical surface of the upper friction pendulum column. Floating plates are stacked between adjacent vertical pull-out valve plates, and the surfaces of the floating plates, the vertical pull-out valve plates, and the upper friction pendulum column are all connected. A vibration cavity is formed between adjacent floating plates, and rhythmically movable filler particles are placed within the vibration cavity. These filler particles rhythmically eliminate vibrations from the bottom of the friction pendulum support. Specifically, the three-dimensional frequency-division vibration-damping friction pendulum support also includes a pull-out disc spring, which is fixed to the upper surface of the vertical pull-out valve plates.

[0007] Specifically, the upper surface of the vertical pull-out valve plate is provided with a disc spring limiting hole, the pull-out disc spring is sleeved on the limiting bolt, the limiting bolt is embedded in the disc spring limiting hole to fix the pull-out disc spring, and the disc spring limiting hole is used to limit the horizontal degree of freedom of the pull-out disc spring.

[0008] Specifically, one part of the anti-pull disc springs is in direct contact with the lower surface of the upper cover plate, while the other part of the anti-pull disc springs are 2 to 3 millimeters apart from the lower surface of the upper cover plate.

[0009] Specifically, a first washer is provided at one end of the anti-pull-out disc spring, and a second washer is provided at the other end of the anti-pull-out disc spring.

[0010] Specifically, the upper and lower surfaces of the slider are provided with polytetrafluoroethylene plates.

[0011] Specifically, the floating plate is made of a high-rigidity vibration-absorbing material, and the stiffness coefficient of the high-rigidity vibration-absorbing material is greater than 70000 N / m.

[0012] Specifically, the high-rigidity vibration-absorbing material includes magnesium alloy, aluminum alloy, and steel.

[0013] Specifically, the filling particles include lead particles and rubber particles, with the number of lead particles being less than the number of rubber particles, and the filling rate of the vibration cavity is 80%.

[0014] Specifically, the lower cover plate and the upper cover plate are connected by bolts.

[0015] Compared with the prior art, this application sets up vertical vibration damping components and horizontal vibration damping components. When the friction pendulum support is subjected to horizontal force, the vibration energy is consumed by the friction of the slider on the sliding surface. When the friction pendulum support is subjected to vertical force, the floating plates of different thicknesses can absorb and transmit vibrations of different frequencies. The vibration transmitted by the floating plates causes the filling particles in the vibration cavity to rub and collide with each other, achieving the effect of energy dissipation and vibration reduction, and greatly reducing the vibration energy transmitted to the superstructure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the appearance of the three-dimensional frequency division vibration reduction friction pendulum support in an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the longitudinal section of the three-dimensional frequency division vibration reduction friction pendulum support in an embodiment of this application;

[0019] Figure 3 This is an exploded view of the longitudinal components of the three-dimensional frequency division vibration reduction friction pendulum support in an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the anti-pull-out disc spring sleeved on the limiting bolt in the three-dimensional frequency division vibration reduction friction pendulum support in the embodiment of this application;

[0021] Figure 5 This is an exploded view of the longitudinal components of the anti-pull-out disc spring and the limiting bolt in the three-dimensional frequency division vibration damping friction pendulum support in an embodiment of this application;

[0022] Figure 6 This is a schematic diagram of the position of the anti-pull-out disc spring of the three-dimensional frequency division vibration damping friction pendulum support in an embodiment of this application. Detailed Implementation

[0023] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0024] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0026] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0027] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0028] This embodiment provides a three-dimensional frequency division vibration reduction friction pendulum support, such as... Figure 2 as well as Figure 3 As shown, it includes: a housing 10, a lateral damping component 11, and a vertical damping component 12.

[0029] like Figure 1As shown, the outer surface of the housing 10 is a cylinder. The housing 10 includes an upper cover plate 101 and a lower cover plate 102, which are connected and fitted to form a receiving space. A circular hole is opened at the center of the upper surface of the upper cover plate 101, through which the upper column 120 of the friction pendulum passes, providing the upper column of the friction pendulum with room to move.

[0030] like Figure 2 as well as Figure 3 As shown, the lateral damping component 11 is disposed on the lower cover plate 102, located at the lower part of the housing 10, that is, the lower part of the accommodating space, and consumes vibration energy by friction of the slider on the sliding surface; the lateral damping component 11 includes a slider 110, an upper sliding surface 111 and a lower sliding surface 112.

[0031] In one embodiment, a limiting device 1020 is provided on the lower cover plate 102. The upper surface of the limiting device 1020 is a concave curved surface, which serves as the lower sliding surface 112 for the slider 110 to slide. In one embodiment, the upper surface of the limiting device 1020 is made of stainless steel.

[0032] In one embodiment, the lower surface of the upper column 120 of the friction pendulum is a concave curved surface, which serves as the upper sliding surface 111 for the slider 110 to slide.

[0033] Slider 110 is disposed between upper sliding surface 111 and lower sliding surface 112. The upper part of slider 110 has the same radius of curvature as upper sliding surface 111, and the bottom part of slider 110 has the same radius of curvature as lower sliding surface 112. Slider 110 can slide relative to both upper sliding surface 111 and lower sliding surface 112. When slider 110 slides relative to upper sliding surface 111 and lower sliding surface 112, friction is generated, which dissipates lateral vibrations.

[0034] The vertical vibration damping component 12 is mounted on the horizontal vibration damping component 11 and is located at the upper part of the housing 10, i.e., the upper part of the accommodating space. The vertical vibration damping component 12 is used to absorb vibration energy by frequency division. The vertical vibration damping component 12 includes a friction pendulum column 120, multiple vertical anti-pull-out valve plates 121, floating plates 122 of different thicknesses, and filling particles.

[0035] The vertical anti-pull valve plate 121 is disposed perpendicular to the bottom surface of the lower cover plate 102, and the vertical anti-pull valve plate 121 is connected to the cylindrical surface of the friction pendulum upper column 120. It extends from the cylindrical surface of the friction pendulum upper column 120 to the edge direction inside the housing 10, and multiple vertical anti-pull valve plates 121 are evenly distributed around the cylindrical surface of the friction pendulum upper column 120.

[0036] Floating plates 122 are stacked between adjacent vertical anti-pull valve plates 121. The surfaces of the floating plates 122, the vertical anti-pull valve plates 121, and the column surface of the friction pendulum column 120 are all connected. A vibration cavity 123 is formed between adjacent floating plates 122. Movable filling particles are provided in the vibration cavity 123. The filling particles collide and rub against each other to eliminate the vibration from the bottom of the friction pendulum support.

[0037] In one embodiment, the top view of the floating plate 122 is a sector with a central angle of 360° / the number of vertical pull-out valve plates 121.

[0038] The thickness of the floating plate 122 is determined by the vibration frequency. The higher the vibration frequency, the thicker and stiffer the floating plate 122. High-frequency vibration energy will be preferentially transmitted to the thicker floating plate 122. The thinner floating plate 122 has lower stiffness, and relatively low-frequency vibration energy will be preferentially transmitted to the thinner floating plate 122.

[0039] The connection method of the three-dimensional frequency division vibration reduction friction pendulum support in this embodiment has the following steps:

[0040] Step 1: Install and secure the lower cover plate 102 onto the building transfer floor.

[0041] Step 2: Install the transverse damping component 11 onto the lower cover plate 102. Specifically, set a limiting device 1020 on the lower cover plate 102, align the lower part of the slider 110 with the center position of the concave curved surface of the limiting device 1020, and set the friction pendulum column 120 on the upper part of the slider 110.

[0042] Step 3: Install the vertical anti-pull valve plate 121 on the side of the friction pendulum upper column 120, and install floating plates 122 of different thicknesses on the friction pendulum upper column 120 and the vertical anti-pull valve plate 121 in sequence, while placing filling particles between the floating plates 122.

[0043] Step 4: Connect the upper cover plate 101 and the lower cover plate 102.

[0044] Lateral vibration occurs and is transmitted from the ground to the lower cover plate 102. The lower cover plate 102 then transmits the vibration to the slider 110, and then to the friction pendulum column 120. The slider 110 slides between the upper sliding surface 111 and the lower sliding surface 112, and friction is generated between the slider 110 and the upper sliding surface 111 and the lower sliding surface 112 to dissipate the vibration energy.

[0045] Vertical vibration occurs and is transmitted from the ground to the lower cover plate 102. The lower cover plate 102 then transmits the vibration to the slider 110, and finally to the upper column 120 of the friction pendulum. After reaching the upper column 120, the vibration is divided into two transmission paths: one path is transmitted from the upper column 120 to the floating plate 122; the other path is transmitted from the upper column 120 to the vertical pull-out valve plate 121, and then from the vertical pull-out valve plate 121 to the floating plate 122. When the vibration energy is transmitted to the floating plate 122, the floating plate 122 divides the transmitted vibration energy into different frequencies. Vibrations of different frequencies are transmitted to the floating plate 122 of corresponding thickness. The floating plate 122 absorbs and transmits the vibration. High-frequency vibration energy is transmitted through the thicker floating plate 122 to the filling particles in the corresponding vibration cavity 123, while low-frequency vibration energy is transmitted through the thinner floating plate 122 to the filling particles in the corresponding vibration cavity 123. The filling particles rub against each other to eliminate the vibration.

[0046] This embodiment incorporates a vertical vibration damping component 11 and a horizontal vibration damping component 12. When the friction pendulum support is subjected to a horizontal force, the vibration energy is dissipated through friction on the sliding surface by the slider 110. When the friction pendulum support is subjected to a vertical force, the floating plates 122 of different thicknesses absorb and transmit vibrations of different frequencies. The vibration transmitted from the floating plates 122 causes the filling particles in the vibration chamber 123 to rub and collide with each other, achieving the effect of energy dissipation and vibration reduction, greatly reducing the vibration energy transmitted to the superstructure. This improves the seismic toughness of the structure and reduces the impact of subway vibrations on the superstructure.

[0047] like Figure 2 as well as Figure 3 As shown, in one embodiment, the vertical vibration damping device 12 further includes a pull-out disc spring 124, which is fixed on the upper surface of the vertical pull-out valve plate 121. The number of pull-out disc springs 124 is the same as the number of vertical pull-out valve plates 121, and one pull-out disc spring 124 is provided on each vertical pull-out valve plate 121.

[0048] When the upper column 120 of the friction pendulum and the vertical anti-pull valve plate 121 move horizontally, the upper surface of the anti-pull disc spring 124 generates a horizontal frictional force with the lower surface of the upper cover plate 101, which improves the overall energy dissipation capacity of the friction pendulum support without changing the friction coefficient of the friction pendulum support.

[0049] When the friction pendulum upper column 120 and the vertical anti-pull-out valve plate 121 move vertically, they compress the anti-pull-out disc spring 124 and generate elastic force. The anti-pull-out disc spring 124 generates an upward elastic force acting on the upper cover plate 101, while the upper cover plate 101 generates a downward support reaction force. Additionally, the downward elastic force generated by the anti-pull-out disc spring 124 acts on the vertical anti-pull-out valve plate 121, increasing the vertical force of the friction pendulum support and thus improving its restoring force. In vertical expansion and contraction engineering, the anti-pull-out disc spring 124, due to its nonlinear structural characteristics, exhibits a significant vibration absorption effect, effectively dissipating some horizontal seismic energy and vertical vibration energy in the vertical direction.

[0050] like Figure 2 as well as Figure 4 As shown, in one embodiment, a disc spring limiting hole 1240 is provided on the upper surface of the vertical pull-out valve plate 121. The pull-out disc spring 124 is sleeved on the limiting bolt 1241, and the pull-out disc spring 124 can move vertically along the limiting bolt 1241. The limiting bolt 1241 is embedded in the disc spring limiting hole 1240 to fix the pull-out disc spring 124. The disc spring limiting hole 1240 is used to limit the horizontal degree of freedom of the pull-out disc spring 124.

[0051] In one embodiment, a portion of the anti-pull-out disc springs 124 are in direct contact with the lower surface of the upper cover plate 101, while the distance between the other portion of the anti-pull-out disc springs 124 and the lower surface of the upper cover plate 101 is 2-3 mm. During vibration, the upper column 120 of the friction pendulum will move due to lateral shear force. Since the anti-pull-out disc springs 124 are not in direct contact with the lower surface of the upper cover plate 101 at the same time, space is left for the lateral movement of the upper column 120 of the friction pendulum.

[0052] like Figure 4 as well as Figure 5 As shown, in one embodiment, a first washer 1241 is provided at one end of the pull-out disc spring 124, and a second washer 1242 is provided at the other end. When vibration occurs, the friction pendulum column 120 moves laterally, and the pull-out disc spring 124 forms a certain angle with the lower surface of the upper cover plate 101. The first washer 1241 ensures to a certain extent that the force exerted by the upper cover plate 101 on the pull-out disc spring 124 is perpendicular. Furthermore, the first washer 1241 and the second washer 1242 prevent wear at both ends of the pull-out disc spring 124. In one embodiment, the first washer 1241 is welded to one end of the pull-out disc spring 124.

[0053] In one embodiment, polytetrafluoroethylene (PTFE) plates are provided on the upper and lower surfaces of the slider 110, that is, PTFE plates are provided between the friction pendulum column 120 and the slider 110, and PTFE plates are provided between the slider and the lower cover plate 102, that is, PTFE plates are provided between the upper sliding surface 111 and the lower sliding surface 112 and the slider 110. The PTFE plates serve as a new sliding surface for the slider 111, and the friction generated during the sliding process can better dissipate vibration energy.

[0054] In one embodiment, the floating plate 122 is made of a high-stiffness vibration-absorbing material with a stiffness coefficient greater than 70,000 N / m. High-stiffness vibration-absorbing materials are more sensitive to vibration and effectively absorb and transmit it.

[0055] In one embodiment, the high-stiffness vibration-absorbing material includes magnesium alloy, aluminum alloy, and steel. The stiffness coefficient of the magnesium alloy and aluminum alloy is approximately 70,000 N / m, and the stiffness coefficient of the steel is approximately 200,000 N / m.

[0056] In one embodiment, the filler particles include lead particles and rubber particles. At vibration frequencies of 20-180 Hz, the energy dissipation effect of the rubber material is greater than that of the hard material; at high-frequency vibrations, the energy dissipation effect of the hard material is greater than that of the rubber material. The vibration frequencies that affect the human body are mainly in the 20-180 Hz range, so the number of lead particles in the filler particles is less than the number of rubber particles, and the filler particle filling rate in the vibration cavity 123 is 80%. In one embodiment, the proportion of lead particles in the filler particles is correspondingly increased in the vibration cavity 123, where the floating plate is thicker, to better eliminate vibrations at higher frequencies.

[0057] like Figure 3 As shown, in one embodiment, the lower cover plate 102 and the upper cover plate 101 are connected by bolts. A lower cover plate groove 1021 is provided on the lower cover plate 102, and connecting bolt holes 1023 are provided on the lower cover plate 102 and the upper cover plate 101. When the upper cover plate 101 is embedded in the lower cover plate groove 1021 and the connecting bolt holes 1023 on the lower cover plate 102 and the upper cover plate 101 are aligned, connecting bolts 1022 are installed along the connecting bolt holes, and the connection and fixation of the upper cover plate 101 and the lower cover plate 102 are completed.

[0058] Example 1

[0059] like Figure 2 as well as Figure 3 As shown, the three-dimensional frequency-division vibration-damping friction pendulum support includes a housing 10, a transverse vibration-damping component 11, and a vertical vibration-damping component 12.

[0060] The housing 10 includes an upper cover plate 101 and a lower cover plate 102. The lower cover plate 102 is provided with a lower cover plate groove 1021, and connecting bolt holes 1023 are provided on the lower cover plate 102 and the upper cover plate 101. When the upper cover plate 101 is inserted into the lower cover plate groove 1021 and the lower cover plate 102 is aligned with the connecting bolt holes 1023 on the upper cover plate 101, connecting bolts 1022 are installed along the connecting bolt holes 1023, and the upper cover plate 101 and the lower cover plate 102 are connected and fixed. The upper cover plate 101 and the lower cover plate 102 cooperate to form an accommodating space.

[0061] A lateral damping assembly 11 is disposed in the lower part of the accommodating space, including a slider 110, an upper sliding surface 111, and a lower sliding surface 112. A limiting device 1020 is provided on the lower cover plate 102. The upper surface of the limiting device 1020 is a concave curved surface, which serves as the lower sliding surface 112 for the slider 110 to slide on. The lower surface of the friction pendulum upper column 120 is a concave curved surface, which serves as the upper sliding surface 111 for the slider 110 to slide on. The slider 110 is disposed between the upper sliding surface 111 and the lower sliding surface 112. The upper part of the slider 110 has the same radius of curvature as the upper sliding surface 111, and the bottom of the slider 110 has the same radius of curvature as the lower sliding surface 112. The slider 110 can slide relative to both the upper sliding surface 111 and the lower sliding surface 112. Both the upper and lower surfaces of the slider 110 are covered with polytetrafluoroethylene plates, which can better dissipate vibration energy during sliding due to the friction generated.

[0062] The vertical vibration damping assembly 12 is disposed on the upper part of the housing 10 and is used to absorb vibration energy by frequency division. The vertical vibration damping assembly 12 includes a friction pendulum column 120, four vertical anti-pull valve plates 121, floating plates 122 of different thicknesses, filling particles, and four anti-pull disc springs 124.

[0063] Four vertical anti-pull-out valve plates 121 are disposed perpendicular to the bottom surface of the lower cover plate 102 and extend from the cylindrical surface of the friction pendulum column 120 towards the edge of the housing 10. The four vertical anti-pull-out valve plates 121 are evenly distributed around the cylindrical surface of the friction pendulum column 120, and the included angle between adjacent vertical anti-pull-out valve plates 121 is 90°. The four vertical anti-pull-out valve plates 121 realize the anti-pull-out function of the friction pendulum support.

[0064] Floating plates 122 are stacked between adjacent vertical pull-out valve plates 121. The surfaces of the floating plates 122 and the vertical pull-out valve plates 121, as well as the cylindrical surface of the friction pendulum column 120, are all connected by welding. The top view of the floating plates 122 is a sector shape with a central angle of 90°. A vibration cavity 123 is formed between adjacent floating plates 122. Movable filling particles are placed in the vibration cavity 123, and the movement of these filling particles eliminates vibration.

[0065] The upper surface of the vertical anti-pull-out valve plate 121 is provided with a disc spring limiting hole 1240. The anti-pull-out disc spring 124 is sleeved on the limiting bolt 1241. The anti-pull-out disc spring 124 can move vertically along the limiting bolt 1241. The limiting bolt 1241 is embedded in the disc spring limiting hole 1240 to fix the anti-pull-out disc spring 124.

[0066] like Figure 6 As shown, four anti-pull-out disc springs are provided. When the upper column of the friction pendulum does not move horizontally, anti-pull-out disc springs 1242 and 1243 are in direct contact with the lower surface of the upper cover plate, while anti-pull-out disc springs 1244 and 1245 are 3 mm away from the lower surface of the upper cover plate. When the upper column of the friction pendulum moves horizontally, anti-pull-out disc springs 1244 and 1245 are in direct contact with the lower surface of the upper cover plate, while anti-pull-out disc springs 1242 and 1243 are 3 mm away from the lower surface of the upper cover plate. During an earthquake, the support is subjected to lateral shear force, and the upper column of the friction pendulum will move. The distance of 2-3 mm between anti-pull-out disc springs 1240 and 1241 and the lower surface of the upper cover plate leaves some space for the horizontal movement of the upper column of the friction pendulum.

[0067] When the friction pendulum upper column 120 and the vertical anti-pull-out valve plate 121 move vertically, they compress the anti-pull-out disc spring 124 and generate elastic force. The anti-pull-out disc spring 124 generates an upward elastic force acting on the upper cover plate 101, while the upper cover plate 101 generates a downward support reaction force. Additionally, the downward elastic force generated by the anti-pull-out disc spring 124 acts on the vertical anti-pull-out valve plate 121, increasing the vertical force of the friction pendulum support and thus improving its restoring force. In vertical expansion and contraction engineering, the anti-pull-out disc spring 124, due to its nonlinear structural characteristics, exhibits a significant vibration absorption effect, effectively dissipating some horizontal seismic energy and vertical vibration energy in the vertical direction.

[0068] Four anti-pull-out disc springs 124 are provided with a first washer 1241 at one end and a second washer 1242 at the other end. When vibration occurs, the friction pendulum column 120 moves laterally, and the anti-pull-out disc springs 124 form a certain angle with the lower surface of the upper cover plate 101. The first washer 1241 ensures to a certain extent that the force exerted by the upper cover plate 101 on the anti-pull-out disc springs 124 is perpendicular. Furthermore, the first washer 1241 and the second washer 1242 prevent wear at both ends of the anti-pull-out disc springs 124.

[0069] The floating plate 122 is made of steel with a stiffness coefficient of approximately 200,000 N / m. Steel is very sensitive to vibration and will absorb and transmit vibration in a timely manner.

[0070] The filling particles include lead particles and 4.6mm rubber particles, with rubber particles being the main component, and the filling rate in the vibration chamber 123 is 80%.

[0071] In Example 1, the assembly steps of the three-dimensional frequency division vibration reduction friction pendulum support are as follows:

[0072] Step 1: Install and secure the lower cover plate 102 onto the building transfer floor.

[0073] Step 2: Install the transverse damping component 11 onto the lower cover plate 102. Specifically, set a limiting device 1020 on the lower cover plate 102, attach a polytetrafluoroethylene plate to the lower convex surface of the slider 110, align the lower part of the slider 110 with the center position of the concave curved surface of the limiting device 1020, attach a polytetrafluoroethylene plate to the upper convex surface of the installed slider 110, and set the friction pendulum column 120 on the upper part of the slider 110.

[0074] Step 3: Install the vertical anti-pull valve plate 121 on the side of the friction pendulum upper column 120, and install floating plates 122 of different thicknesses on the friction pendulum upper column 120 and the vertical anti-pull valve plate 121 in sequence, while placing filling particles between the floating plates 122.

[0075] Step 4: Weld the first washer 1241 and the second washer 1243 to both ends of the pull-out disc spring 124. Place the pull-out disc spring 124 with the washer welded on both sides on the disc spring limiting hole 1240 reserved on the vertical pull-out valve plate 121. Then, pass the limiting bolt 1241 through the center of the pull-out disc spring 124 and embed it into the disc spring limiting hole 1240 to fix the pull-out disc spring 124.

[0076] Step 5: When the upper cover plate 101 is embedded into the groove 1021 of the lower cover plate and the lower cover plate 102 is aligned with the connecting bolt hole on the upper cover plate 101, the connecting bolt 1022 is installed along the connecting bolt hole, and the connection and fixation of the upper cover plate 101 and the lower cover plate 102 are completed.

[0077] Lateral vibration occurs and is transmitted from the ground to the lower cover plate 102. The lower cover plate 102 then transmits the vibration to the slider 110, and finally to the upper column of the friction pendulum 120. The slider 110 slides between the upper sliding surface 111 and the lower sliding surface 112, and friction is generated between the slider 110 and the upper and lower sliding surfaces 111 and 112 to dissipate the vibration energy. The anti-pull-out disc springs 1244 and 1245 are in direct contact with the lower surface of the upper cover plate, while the anti-pull-out disc springs 1242 and 1243 are 3 mm away from the lower surface of the upper cover plate. The anti-pull-out disc springs 1240 and 1241 are 2-3 mm away from the lower surface of the upper cover plate, leaving some space for the horizontal movement of the upper column of the friction pendulum. Furthermore, the anti-pull disc springs 1244 and 1245 generate horizontal frictional force with the lower surface of the upper cover plate 101, thereby improving the overall energy dissipation capacity of the friction pendulum support without changing the friction coefficient of the friction pendulum support.

[0078] Vertical vibration occurs and is transmitted from the ground to the lower cover plate 102. The lower cover plate 102 then transmits the vibration to the slider 110, and finally to the upper column 120 of the friction pendulum. After reaching the upper column 120, the vibration is divided into two transmission paths: one path is transmitted from the upper column 120 to the floating plate 122; the other path is transmitted from the upper column 120 to the vertical pull-out valve plate 121, and then from the vertical pull-out valve plate 121 to the floating plate 122. When the vibration energy is transmitted to the floating plate 122, the floating plate 122 divides the transmitted vibration energy into different frequencies. Vibrations of different frequencies are transmitted to the floating plate 122 of corresponding thickness. The floating plate 122 absorbs and transmits the vibration. High-frequency vibration energy is transmitted through the thicker floating plate 122 to the filling particles in the corresponding vibration cavity 123, while low-frequency vibration energy is transmitted through the thinner floating plate 122 to the filling particles in the corresponding vibration cavity 123. The filling particles rub against each other to eliminate the vibration. Furthermore, during vibration, the anti-pull-out disc spring 124 is compressed and generates elastic force. The anti-pull-out disc spring 124 generates an upward elastic force acting on the upper cover plate 101, while the upper cover plate 101 generates a downward support reaction force. In addition, the downward elastic force generated by the anti-pull-out disc spring 124 acts on the vertical anti-pull-out valve plate 121, which increases the vertical force of the friction pendulum support, thereby improving the restoring force of the friction pendulum support.

[0079] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A three-dimensional frequency-division vibration-damping friction pendulum support, characterized in that, include: The housing includes an upper cover plate and a lower cover plate that cooperates with the upper cover plate to form a receiving space; A lateral damping component is disposed on the lower cover plate and located at the lower part of the receiving space, and consumes lateral vibrations by friction of the slider on the sliding surface; A vertical vibration damping component, disposed on the horizontal vibration damping component and located above the accommodating space, is used to absorb vertical vibrations at different frequencies. The vertical vibration damping component includes a friction pendulum column connected to the horizontal vibration damping component, multiple vertical pull-out valve plates, floating plates of different thicknesses, and filling particles. The vertical anti-pull-out valve plate is disposed perpendicular to the bottom surface of the lower cover plate and extends from the cylindrical surface of the friction pendulum column towards the edge of the interior of the housing. A plurality of the vertical anti-pull-out valve plates are evenly distributed around the cylindrical surface of the friction pendulum column. The floating plates are stacked between adjacent vertical pull-out valve plates. The surfaces of the floating plates, the vertical pull-out valve plates, and the upper column of the friction pendulum are all connected. A vibration cavity is formed between the upper and lower adjacent floating plates. The vibration cavity is filled with rhythmic filling particles. These filling particles collide and rub against each other to eliminate vibrations from the bottom of the friction pendulum support.

2. The three-dimensional frequency-division vibration-damping friction pendulum support according to claim 1, characterized in that, The three-dimensional frequency division vibration damping friction pendulum support also includes an anti-pull-out disc spring, which is fixed to the upper surface of the vertical anti-pull-out valve plate.

3. The three-dimensional frequency-division vibration-damping friction pendulum support according to claim 2, characterized in that, The upper surface of the vertical pull-out valve plate is provided with a disc spring limiting hole. The pull-out disc spring is sleeved on the limiting bolt. The limiting bolt is embedded in the disc spring limiting hole to fix the pull-out disc spring. The disc spring limiting hole is used to limit the horizontal degree of freedom of the pull-out disc spring.

4. The three-dimensional frequency-division vibration-damping friction pendulum support according to claim 2, characterized in that, One portion of the anti-pull disc springs is in direct contact with the lower surface of the upper cover plate, while the other portion of the anti-pull disc springs is 2 to 3 millimeters away from the lower surface of the upper cover plate.

5. The three-dimensional frequency-division vibration-damping friction pendulum support according to claim 2, characterized in that, A first washer is provided at one end of the anti-pull disc spring, and a second washer is provided at the other end of the anti-pull disc spring.

6. The three-dimensional frequency division vibration reduction friction pendulum support according to claim 1, characterized in that, The upper and lower surfaces of the slider are provided with polytetrafluoroethylene plates.

7. The three-dimensional frequency-division vibration-damping friction pendulum support according to claim 1, characterized in that, The floating plate is made of high-rigidity vibration-absorbing material, and the stiffness coefficient of the high-rigidity vibration-absorbing material is greater than 70000 N / m.

8. The three-dimensional frequency division vibration reduction friction pendulum support according to claim 7, characterized in that, The high-rigidity vibration-absorbing material includes magnesium alloy, aluminum alloy, and steel.

9. The three-dimensional frequency-division vibration-damping friction pendulum support according to claim 1, characterized in that, The filling particles include lead particles and rubber particles, with the number of lead particles being less than the number of rubber particles, and the filling rate of the vibration chamber is 80%.

10. The three-dimensional frequency-division vibration-damping friction pendulum support according to claim 1, characterized in that, The lower cover plate and the upper cover plate are connected by bolts.

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