Three-dimensional frequency division vibration reduction friction pendulum support

Abstract

The invention provides a three-dimensional frequency division vibration reduction friction pendulum support which comprises a shell, a transverse vibration reduction assembly and a vertical vibration reduction assembly, the transverse vibration reduction assembly consumes vibration energy through friction of a sliding block on a sliding face, and the vertical vibration reduction assembly absorbs the vibration energy in a frequency division mode. The vertical vibration reduction assembly comprises a friction pendulum upper column, a plurality of floating plates with different thicknesses and filling particles, vibration is conducted to the floating plates through the friction pendulum upper column or the vertical anti-pulling valve plate, and vibration with different frequencies is conducted to the floating plates with the corresponding thicknesses and then conducted to the filling particles in the vibration cavity through the floating plates; the floating slab vibrates to drive the particles to collide and rub with one another, and the purposes of energy dissipation and vibration reduction are achieved. The friction pendulum support can meet the requirements for shock absorption in the horizontal direction and vibration isolation in the vertical direction, and vibration of different frequencies can be eliminated in a frequency division mode.

Description

Technical Field

[0001] The present application relates to the field of vibration isolation of rail transit roof buildings, buildings with vibration sources, other equipment and facilities, and specifically to a three-dimensional frequency-dividing vibration-damping friction pendulum support. Background Art

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

[0003] With the acceleration of urbanization and the improvement of people's requirements for living quality, subway superstructures have gradually become a new trend in urban development. At present, domestic subway superstructure projects have spread across major cities across the country and have become an important part of China's urban construction. During the operation of the subway, vehicle-induced vibration is generated due to the interaction between wheels and rails. Vehicle-induced vibration has a significant impact on the comfort of residents in the superstructure.

[0004] At present, the friction pendulum bearing is the most commonly used shock-absorbing bearing in China. However, due to the lack of bending resistance, many scholars have also improved it. The more mature one is the pull-out friction pendulum bearing, which solves the bending problem while retaining the characteristics of shock absorption. However, there is still a lack of bearings in China that can resist earthquakes laterally and reduce vibrations vertically during vibration. Summary of the invention

[0005] The present application proposes a three-dimensional frequency-divided vibration-damping friction pendulum bearing, which can meet the vibration and seismic isolation requirements in the horizontal and vertical directions, and solves the problem that the current pull-out friction pendulum bearing cannot reduce vibration in the vertical direction, and can achieve earthquake resistance when there is an earthquake and vibration reduction when there is no earthquake.

[0006] The present application provides a three-dimensional frequency-dividing vibration-damping friction pendulum support, comprising: a shell, comprising an upper cover plate and a lower cover plate that cooperates with the upper cover plate to form a receiving space; a lateral vibration-damping component, which is arranged on the lower cover plate and located at the lower part of the receiving space, and consumes lateral vibrations by friction of a slider on a sliding surface; a vertical vibration-damping component, which is arranged on the lateral vibration-damping component and located at the upper part of the receiving space, and is used to perform frequency-dividing absorption on vertical vibrations, wherein the vertical vibration-damping component comprises a friction pendulum upper column connected to the lateral vibration-damping component, a plurality of vertical anti-pulling valve plates, and floating bearings of different thicknesses. Plate and filling particles, the vertical anti-pullout valve plate is arranged perpendicular to the bottom surface of the lower cover plate and extends from the column surface of the friction pendulum upper column to the edge direction of the shell, and a plurality of the vertical anti-pullout valve plates are evenly distributed around the column surface of the friction pendulum upper column; the floating plate is stacked between adjacent vertical anti-pullout valve plates, the floating plate is connected to the plate surface of the vertical anti-pullout valve plate and the column surface of the friction pendulum upper column, and a vibration cavity is formed between the upper and lower adjacent floating plates, and rhythmic filling particles are arranged in the vibration cavity, and the rhythmic movement of the filling particles eliminates the vibration from the bottom of the friction pendulum support. Specifically, the three-dimensional frequency-divided vibration-damping friction pendulum support also includes an anti-pullout disc spring, and the anti-pullout disc spring is fixed on the upper surface of the vertical anti-pullout valve plate.

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

[0008] Specifically, a portion of the anti-pullout disc springs is in direct contact with the lower surface of the upper cover plate, and a distance between another portion of the anti-pullout disc springs and the lower surface of the upper cover plate is 2 to 3 mm.

[0009] Specifically, a first gasket is arranged at one end of the anti-pullout disc spring, and a second gasket is arranged at the other end of the anti-pullout disc spring.

[0010] Specifically, polytetrafluoroethylene plates are provided on the upper surface and the lower surface of the sliding block.

[0011] Specifically, the floating plate adopts 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, the number of the lead particles is less than the number of the rubber particles, and the filling rate of the filling particles in the vibration cavity is 80%.

[0014] Specifically, the lower cover plate is connected to the upper cover plate by bolts.

[0015] Compared with the prior art, the present application sets up a vertical vibration reduction component and a lateral vibration reduction component. When the friction pendulum bearing is subjected to a lateral force, the vibration energy is consumed by the friction of the slider on the sliding surface; when the friction pendulum bearing is subjected to a vertical force, floating plates of different thicknesses can absorb and transmit vibrations of different frequencies. The vibration transmitted by the floating plate causes the filling particles in the vibration cavity to rub and collide with each other, thereby achieving the effect of energy dissipation and vibration reduction, and greatly reducing the vibration energy transmitted to the upper cover building. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 is a schematic diagram of the appearance of a three-dimensional frequency-dividing vibration-damping friction pendulum support in an embodiment of the present application;

[0018] Figure 2 is a schematic diagram of a longitudinal section of a three-dimensional frequency-divided vibration-damping friction pendulum support in an embodiment of the present application;

[0019] Figure 3 It is a longitudinal exploded schematic diagram of parts of a three-dimensional frequency-divided vibration-damping friction pendulum support in an embodiment of the present application;

[0020] Figure 4 It is a schematic diagram of an anti-pullout disc spring sleeved on a limit bolt in a three-dimensional frequency-divided vibration-damping friction pendulum support in an embodiment of the present application;

[0021] Figure 5 It is a schematic diagram of the longitudinal exploded parts of the anti-pullout disc spring and the limit bolt in the three-dimensional frequency-divided vibration-damping friction pendulum support in the embodiment of the present application;

[0022] Figure 6 It is a schematic diagram of the position of the anti-pullout disc spring of the three-dimensional frequency-divided vibration-damping friction pendulum support in the embodiment of the present application. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0024] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0025] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an 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 aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0026] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0027] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

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

[0029] like Figure 1As shown, the outer surface of the housing 10 is a cylinder, and the housing 10 includes an upper cover plate 101 and a lower cover plate 102, which are connected and matched to form a receiving space. A circular hole is opened in the center of the upper surface of the upper cover plate 101, and the friction pendulum upper column 120 passes through the circular hole, which provides a movable space for the friction pendulum upper column.

[0030] like Figure 2 as well as Figure 3 As shown, the lateral shock absorbing assembly 11 is arranged on the lower cover plate 102, located at the lower part of the shell 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 shock absorbing assembly 11 includes a slider 110, an upper sliding surface 111 and a lower sliding surface 112.

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

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

[0033] The slider 110 is disposed between the upper sliding surface 111 and the lower sliding surface 112. The upper portion of the slider 110 has the same curvature radius as the upper sliding surface 111, and the bottom of the slider 110 has the same curvature radius 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. When the slider 110 slides against the upper sliding surface 111 and the lower sliding surface 112, friction is generated to consume lateral vibration.

[0034] The vertical vibration reduction assembly 12 is arranged on the lateral vibration reduction assembly 11, and is located at the upper part of the housing 10, that is, the upper part of the accommodation space. The vertical vibration reduction assembly 12 is used to absorb the vibration energy by frequency division. The vertical vibration reduction assembly 12 includes a friction pendulum upper column 120, a plurality of vertical anti-pulling valve plates 121, floating plates 122 of different thicknesses, and filling particles.

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

[0036] The floating plates 122 are stacked between adjacent vertical anti-pullout valve plates 121. The floating plates 122 are connected to the plate surfaces of the vertical anti-pullout valve plates 121 and the column surfaces of the friction pendulum upper columns 120. A vibration cavity 123 is formed between the upper and lower adjacent floating plates 122. Movable filling particles are arranged in the vibration cavity 123. The filling particles collide and rub against each other to eliminate 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 anti-pullout valve plates 121 .

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

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

[0040] Step 1: Install and fix the lower cover plate 102 on the building transfer layer.

[0041] Step 2, install the lateral shock absorbing assembly 11 on the lower cover plate 102. Specifically, set a limit device 1020 on the lower cover plate 102, align the lower part of the slider 110 with the center position of the concave surface of the limit device 1020, and set the friction pendulum upper column 120 on the upper part of the slider 110.

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

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

[0044] Transverse vibration occurs, which is transmitted from the ground to the lower cover plate 102, and the lower cover plate 102 transmits the vibration to the slider 110, and then to the friction pendulum upper 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 consume the vibration energy.

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

[0046] This embodiment sets a vertical vibration reduction component 11 and a lateral vibration reduction component 12. When the friction pendulum support is subjected to lateral force, the vibration energy is consumed by friction of the slider 110 on the sliding surface; when the friction pendulum support is subjected to vertical force, the floating plates 122 of different thicknesses absorb and transmit vibrations of different frequencies. The vibration transmitted by the floating plates 122 causes the filling particles in the vibration cavity 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 upper building. The seismic toughness of the structure is improved and the impact of subway vibration on the upper building is reduced.

[0047] like Figure 2 as well as Figure 3 As shown, in one embodiment, the vertical vibration reduction device 12 also includes an anti-pullout disc spring 124, which is fixed to the upper surface of the vertical anti-pullout valve plate 121. The number of anti-pullout disc springs 124 is consistent with the number of vertical anti-pullout valve plates 121, and an anti-pullout disc spring 124 is arranged on each vertical anti-pullout valve plate 121.

[0048] When the friction pendulum upper column 120 and the vertical anti-pullout valve plate 121 move horizontally, the upper surface of the anti-pullout disc spring 124 and the lower surface of the upper cover plate 101 generate horizontal friction force, thereby improving the overall energy dissipation capacity of the friction pendulum bearing without changing the friction coefficient of the friction pendulum bearing.

[0049] When the friction pendulum upper column 120 and the vertical anti-pullout valve plate 121 move vertically, the anti-pullout disc spring 124 is compressed and generates elastic force. The anti-pullout disc spring 124 generates a vertical upward elastic force acting on the upper cover plate 101, and the upper cover plate 101 generates a vertical downward support reaction force. In addition, the vertical downward elastic force generated by the anti-pullout disc spring 124 acts on the vertical anti-pullout valve plate 121, which increases the vertical force of the friction pendulum support, thereby increasing the restoring force of the friction pendulum support. In the vertical telescopic project, the anti-pullout disc spring 124 has a significant vibration absorption effect due to the nonlinear characteristics of its own structure, which realizes the dissipation of part of the horizontal seismic energy and the 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 anti-pulling valve plate 121, and the anti-pulling disc spring 124 is sleeved on the limiting bolt 1241, and the anti-pulling 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-pulling disc spring 124, and the disc spring limiting hole 1240 is used to limit the horizontal freedom of the anti-pulling disc spring 124.

[0051] In one embodiment, a portion of the anti-pullout disc spring 124 directly contacts the lower surface of the upper cover plate 101, and the distance between the other portion of the anti-pullout disc spring 124 and the lower surface of the upper cover plate 101 is 2 to 3 mm. During vibration, the friction pendulum upper column 120 will move due to the lateral shear force, and the anti-pullout disc spring 124 will not directly contact the lower surface of the upper cover plate 101 at the same time, leaving room for the lateral movement of the friction pendulum upper column 120.

[0052] like Figure 4 as well as Figure 5 As shown, in one embodiment, a first gasket 1241 is provided at one end of the anti-pullout disc spring 124, and a second gasket 1242 is provided at the other end of the anti-pullout disc spring 124. When vibration occurs, the friction pendulum upper column 120 moves laterally, and the anti-pullout disc spring 124 forms a certain angle with the lower surface of the upper cover plate 101. The first gasket 1241 ensures that the force applied by the upper cover plate 101 to the anti-pullout disc spring 124 is vertical to a certain extent. The first gasket 1241 and the second gasket 1242 prevent the two ends of the anti-pullout disc spring 124 from being worn. In one embodiment, the first gasket 1241 is welded to one end of the anti-pullout disc spring 124.

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

[0054] In one embodiment, the floating plate 122 is made of high-rigidity vibration-absorbing material, and the stiffness coefficient of the high-rigidity vibration-absorbing material is greater than 70,000 N / m. The high-rigidity vibration-absorbing material is more sensitive to vibration and has good absorption and conduction of vibration.

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

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

[0057] like Figure 3 As shown, in one embodiment, the lower cover plate 102 is connected to the upper cover plate 101 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, the connecting bolts 1022 are installed along the connecting bolt holes, and the upper cover plate 101 and the lower cover plate 102 are connected and fixed.

[0058] Example 1

[0059] like Figure 2 as well as Figure 3 As shown, the three-dimensional frequency-divided vibration-damping friction pendulum support includes a housing 10 , a lateral 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. 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, the 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, and the upper cover plate 101 and the lower cover plate 102 cooperate to form a receiving space.

[0061] The lateral damping assembly 11 is arranged at the lower part of the accommodating space, and includes a slider 110, an upper sliding surface 111 and a lower sliding surface 112. A limit device 1020 is arranged on the lower cover plate 102, and the upper surface of the limit device 1020 is a concave curved surface, and the upper surface of the limit device 1020 serves as the lower sliding surface 112 on which the slider 110 slides. The lower surface of the friction pendulum upper column 120 is a concave curved surface, and the lower surface of the friction pendulum upper column serves as the upper sliding surface 111 on which the slider 110 slides. The slider 110 is arranged between the upper sliding surface 111 and the lower sliding surface 112, and the upper part of the slider 110 has the same curvature radius as the upper sliding surface 111, and the bottom of the slider 110 has the same curvature radius 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. Polytetrafluoroethylene plates are provided on the upper and lower surfaces of the slider 110 , and the friction force generated during the sliding process can better dissipate the vibration energy.

[0062] The vertical vibration reduction assembly 12 is arranged on the upper part of the housing 10 for frequency-dividing and absorbing vibration energy. The vertical vibration reduction assembly 12 comprises a friction pendulum upper column 120 , four vertical anti-pulling valve plates 121 , floating plates 122 of different thicknesses, filling particles and four anti-pulling disc springs 124 .

[0063] Four vertical anti-pull-out valve plates 121 are arranged perpendicular to the bottom surface of the lower cover plate 102 and extend from the cylindrical surface of the friction pendulum upper column 120 toward the edge direction of the inside of the shell 10. The four vertical anti-pull-out valve plates 121 are evenly distributed on the cylindrical circumference of the friction pendulum upper column 120. The 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] The floating plates 122 are stacked between adjacent vertical anti-pulling valve plates 121. The floating plates 122 are connected to the plate surface of the vertical anti-pulling valve plates 121 and the cylindrical surface of the friction pendulum upper column 120 by welding. The top view of the floating plates 122 is a sector with a central angle of 90°. A vibration cavity 123 is formed between the upper and lower adjacent floating plates 122. Movable filling particles are arranged in the vibration cavity 123. The movement of the filling particles eliminates vibration.

[0065] A disc spring limiting hole 1240 is provided on the upper surface of the vertical anti-pullout valve plate 121 . The anti-pullout disc spring 124 is sleeved on a limiting bolt 1241 . The anti-pullout 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-pullout disc spring 124 .

[0066] like Figure 6 As shown, there are four anti-pullout disc springs. When the friction pendulum upper column does not move horizontally, the anti-pullout disc springs 1242 and 1243 are in direct contact with the lower surface of the upper cover plate, and the distance between the anti-pullout disc springs 1244 and 1245 and the lower surface of the upper cover plate is 3 mm; when the friction pendulum upper column moves horizontally, the anti-pullout disc springs 1244 and 1245 are in direct contact with the lower surface of the upper cover plate, and the distance between the anti-pullout disc springs 1242 and 1243 and the lower surface of the upper cover plate is 3 mm. During an earthquake, the bearing is subjected to transverse shear force, and the friction pendulum upper column will move. The distance between the anti-pullout disc springs 1240 and 1241 and the lower surface of the upper cover plate is 2 to 3 mm, leaving a little space for the horizontal movement of the friction pendulum upper column.

[0067] When the friction pendulum upper column 120 and the vertical anti-pullout valve plate 121 move vertically, the anti-pullout disc spring 124 is compressed and generates elastic force. The anti-pullout disc spring 124 generates a vertical upward elastic force acting on the upper cover plate 101, and the upper cover plate 101 generates a vertical downward support reaction force. In addition, the vertical downward elastic force generated by the anti-pullout disc spring 124 acts on the vertical anti-pullout valve plate 121, which increases the vertical force of the friction pendulum bearing, thereby improving the restoring force of the friction pendulum bearing. In the vertical telescopic engineering, the anti-pullout disc spring 124 has a significant vibration absorption effect due to the nonlinear characteristics of its own structure, which realizes the dissipation of part of the horizontal seismic energy and the vertical vibration energy in the vertical direction.

[0068] A first gasket 1241 is provided at one end of the four anti-pullout disc springs 124, and a second gasket 1242 is provided at the other end of the anti-pullout disc spring 124. When vibration occurs, the friction pendulum upper column 120 moves laterally, and the anti-pullout disc spring 124 forms a certain angle with the lower surface of the upper cover plate 101. The first gasket 1241 ensures that the force applied by the upper cover plate 101 to the anti-pullout disc spring 124 is vertical to a certain extent. The first gasket 1241 and the second gasket 1242 prevent the two ends of the anti-pullout disc spring 124 from being worn.

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

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

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

[0072] Step 1: Install and fix the lower cover plate 102 on the building transfer layer.

[0073] Step 2, install the lateral shock absorbing assembly 11 on the lower cover plate 102. Specifically, set a limit device 1020 on the lower cover plate 102, stick a polytetrafluoroethylene plate on the lower convex surface of the slider 110, align the lower part of the slider 110 with the center position of the concave surface of the limit device 1020, stick a polytetrafluoroethylene plate on the upper convex surface of the installed slider 110, and set the friction pendulum upper column 120 on the upper part of the slider 110.

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

[0075] Step 4, weld the first gasket 1241 and the second gasket 1243 to the two ends of the anti-pullout disc spring 124, set the anti-pullout disc spring 124 with the gaskets on both sides welded on the disc spring limiting hole 1240 reserved on the vertical anti-pullout valve plate 121, and then pass the limiting bolt 1241 through the center of the anti-pullout disc spring 124 and embed it into the disc spring limiting hole 1240, so as to fix the anti-pullout disc spring 124.

[0076] Step 5, when the upper cover plate 101 is embedded in the groove 1021 of the lower cover plate and the connecting bolt holes on the lower cover plate 102 and the upper cover plate 101 are aligned, the connecting bolts 1022 are installed along the connecting bolt holes, and the upper cover plate 101 and the lower cover plate 102 are connected and fixed.

[0077] Transverse vibration occurs, which is transmitted from the ground to the lower cover plate 102, and the lower cover plate 102 transmits the vibration to the slider 110, and then to the friction pendulum upper 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 consume the vibration energy. The anti-pullout disc spring 1244 and the anti-pullout disc spring 1245 are in direct contact with the lower surface of the upper cover plate, and the distance between the anti-pullout disc spring 1242 and the anti-pullout disc spring 1243 and the lower surface of the upper cover plate is 3 mm. The distance between the anti-pullout disc spring 1240 and the anti-pullout disc spring 1241 and the lower surface of the upper cover plate is 2 to 3 mm, leaving a little space for the horizontal movement of the friction pendulum upper column. Furthermore, the anti-pullout disc spring 1244 and the anti-pullout disc spring 1245 generate horizontal friction force with the lower surface of the upper cover plate 101, thereby improving the overall energy dissipation capacity of the friction pendulum bearing without changing the friction coefficient of the friction pendulum bearing.

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

[0079] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A three-dimensional frequency-dividing vibration-damping friction pendulum support, characterized in that: include: The housing comprises an upper cover plate and a lower cover plate cooperating with the upper cover plate to form a receiving space; A lateral shock absorbing assembly is arranged on the lower cover plate and located at the lower part of the accommodation space, and consumes lateral vibrations by friction of the slider on the sliding surface; A vertical vibration reduction component is arranged on the lateral vibration reduction component and located at the upper part of the accommodation space, and is used for frequency-dividing and absorbing vertical vibration. The vertical vibration reduction assembly includes a friction pendulum upper column connected to the lateral vibration reduction assembly, a plurality of vertical anti-pulling valve plates, floating plates of different thicknesses, and filling particles. The vertical anti-pulling valve plate is arranged perpendicular to the bottom surface of the lower cover plate and extends from the column surface of the friction pendulum upper column toward the edge direction of the inner side of the shell, and a plurality of the vertical anti-pulling valve plates are evenly distributed around the column surface of the friction pendulum upper column; The floating plates are stacked between adjacent vertical anti-pullout valve plates, and the floating plates are connected to the plate surfaces of the vertical anti-pullout valve plates and the column surfaces of the friction pendulum upper columns. A vibration cavity is formed between the upper and lower adjacent floating plates, and movable filling particles are arranged in the vibration cavity. The filling particles collide and rub against each other to eliminate vibration from the bottom of the friction pendulum support.

2. The three-dimensional frequency-dividing vibration-damping friction pendulum support according to claim 1 is characterized in that: The three-dimensional frequency-dividing vibration-damping friction pendulum support also includes an anti-pullout disc spring, and the anti-pullout disc spring is fixed on the upper surface of the vertical anti-pullout valve plate.

3. The three-dimensional frequency-divided vibration-damping friction pendulum support according to claim 2 is characterized in that: A disc spring limiting hole is arranged on the upper surface of the vertical anti-pullout valve plate, and the anti-pullout disc spring is sleeved on a limiting bolt. The limiting bolt is embedded in the disc spring limiting hole to fix the anti-pullout disc spring, and the disc spring limiting hole is used to limit the horizontal degree of freedom of the anti-pullout disc spring.

4. The three-dimensional frequency-divided vibration-damping friction pendulum support according to claim 2, characterized in that: A portion of the anti-pullout disc spring is in direct contact with the lower surface of the upper cover plate, and a distance between another portion of the anti-pullout disc spring and the lower surface of the upper cover plate is 2 to 3 mm.

5. The three-dimensional frequency-dividing vibration-damping friction pendulum support according to claim 2, characterized in that: A first gasket is arranged at one end of the anti-pullout disc spring, and a second gasket is arranged at the other end of the anti-pullout disc spring.

6. The three-dimensional frequency-divided vibration-damping friction pendulum support according to claim 1, characterized in that: Polytetrafluoroethylene plates are arranged on the upper surface and the lower surface of the sliding block.

7. The three-dimensional frequency-divided 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 70,000 N / m.

8. The three-dimensional frequency-divided vibration-damping 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-divided vibration-damping friction pendulum support according to claim 1, characterized in that: The filling particles include lead particles and rubber particles, the number of the lead particles is less than the number of the rubber particles, and the filling rate of the filling particles in the vibration cavity is 80%.

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

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