Vibration double-control support
By designing a dual-control vibration support, combined with a limiting groove and vertical vibration damping components, the vertical vibration and horizontal vibration are decoupled, solving the problem that existing devices cannot simultaneously and efficiently isolate and reduce vibration, thus ensuring the safety and load-bearing capacity of the building structure.
Patent Information
- Application Number
- CN202520162948.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-01-23
AI Technical Summary
In existing vibration control devices, the simple stacking combination of horizontal isolation bearings and vertical vibration damping elements makes it difficult to simultaneously and efficiently perform both isolation and vibration damping functions.
A vibration-controlled bearing is designed, comprising an upper bearing plate, a friction pair, a middle bearing plate, a vertical damping component, and a lower bearing plate arranged sequentially from top to bottom. The horizontal and vertical displacement of the middle bearing plate is limited by a limiting groove, and a viscous damper and a helical spring are combined as vertical damping components to achieve decoupling of vertical vibration and horizontal vibration, and to dissipate seismic energy using the friction pair.
Effectively control vehicle-induced vibration and seismic response to ensure building structural safety, maximize seismic isolation and vibration reduction functions, avoid component failure in extreme cases, and ensure that load-bearing capacity is not affected.
Smart Images
Figure CN223813817U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of building seismic isolation support, in particular, relates to a vibration and earthquake double control support. BACKGROUND
[0002] To solve the urban traffic problem and improve the efficiency of land use, more and more cities begin to adopt the development mode of traffic orientation TOD (Transit-Oriented Development), that is, the city development mode guided by public transportation. The TOD in China is basically combined with rail transit, that is, real estate and property are developed above the rail transit station. A large number of TOD buildings appear in China, and the TOD building structure needs to solve the technical problems of basic bearing, earthquake action, wind-induced vibration, vehicle-induced vibration and other aspects, and the demand for controlling vertical vehicle-induced vibration is very urgent.
[0003] With the improvement of economic development level, the design of subway overbuilding pays more and more attention to vibration comfort and the seismic fortification capacity of the building. Isolation technology is more and more popular in subway overbuilding due to its excellent damping effect, and more and more devices for reducing subway vehicle-induced vibration appear. At present, many kinds of vibration and earthquake double control devices appear on the market, which are mostly simple stacking combinations of horizontal isolation supports and vertical damping elements, and it is difficult to simultaneously and efficiently exert the isolation function of the isolation support and the damping function of the damping element. CONTENT OF THE UTILITY MODEL
[0004] The purpose of the present application is to provide a vibration and earthquake double control support to improve the technical problem that the current vibration and earthquake double control device is mostly a simple stacking combination of horizontal isolation support and vertical damping element, and it is difficult to simultaneously and efficiently exert the isolation and damping functions.
[0005] In the first aspect, the embodiments of the present application provide a vibration and earthquake double control support, which comprises, from top to bottom, an upper seat plate, a friction pair, a middle seat plate, a vertical damping assembly and a lower seat plate, a lower seat plate basin ring is arranged around the top wall of the lower seat plate, a limiting groove is formed in the inner side wall of the upper end of the lower seat plate basin ring in a circumferential direction, the middle seat plate is clamped in the limiting groove, and an elastic reset assembly is arranged between the outer side wall of the upper end of the lower seat plate basin ring and the outer circumference of the upper seat plate; the vertical damping assembly is arranged in the lower seat plate basin ring, the bottom of the vertical damping assembly is connected with the top wall of the lower seat plate, and the top of the vertical damping assembly is connected with the bottom wall of the middle seat plate.
[0006] In the above implementation process, the friction pair and the vertical damping assembly are directly connected and arranged through the middle seat plate, and the horizontal and vertical displacements of the middle seat plate are limited through the limiting groove, so that the normal bearing function is met, the vertical vibration and horizontal vibration control are decoupled, the force transmission path is clear, and the isolation function and the damping function are maximally exerted.
[0007] In a possible implementation, the bottom wall of the middle seat plate and the inner bottom wall of the limiting groove have a first displacement space.
[0008] The application has the first displacement space between the bottom wall of the middle seat plate and the inner bottom wall of the limiting groove. When the vertical damping assembly vertically displaces to control the vehicle-induced vibration, the middle seat plate is driven to vertically displace with a certain displacement space, and the distance of the downward displacement of the vertical damping assembly and the middle seat plate is limited to a certain extent, so that the bearing capacity failure of the support caused by the failure of the vertical damping assembly in an extreme case is avoided, and the absolute safety of the building structure is ensured.
[0009] In a possible implementation, the vertical damping assembly includes a viscous damper and a plurality of groups of spiral springs. The viscous damper is arranged in the middle of the lower seat plate, the bottom of the viscous damper is connected with the top wall of the lower seat plate, and the top of the viscous damper is connected with the bottom wall of the middle seat plate. The plurality of groups of spiral springs are arranged around the viscous damper at intervals, one end of the spiral spring is connected with the top wall of the lower seat plate, and the other end of the spiral spring is connected with the bottom wall of the middle seat plate.
[0010] The application uses the viscous damper and the plurality of groups of spiral springs as the vertical damping assembly. The plurality of groups of spiral springs can control the vehicle-induced vibration caused by the subway, and the viscous damper can dissipate the energy of the vertical high-frequency vibration, so that the damping function is efficiently exerted.
[0011] In a possible implementation, each group of spiral springs includes four spiral springs, and the four spiral springs are distributed at intervals in a square shape.
[0012] The application forms a group of spiral springs by distributing four spiral springs at intervals in a square shape, so that the stability and the vertical damping effect can be improved.
[0013] In a possible implementation, a plurality of limiting columns are further arranged on the lower seat plate, one end of the limiting column is connected with the top wall of the lower seat plate, the other end of the limiting column has a second displacement space with the bottom wall of the middle seat plate, and one limiting column is arranged at the center position of one group of spiral springs.
[0014] The application arranges one limiting column at the center position of one group of spiral springs, and the top end of the limiting column has the second displacement space with the bottom wall of the middle seat plate. When the vertical damping assembly vertically displaces to control the vehicle-induced vibration, the middle seat plate is driven to vertically displace with a certain displacement space, and the limiting column further limits the distance of the downward displacement of the middle seat plate, so that the bearing capacity failure of the support caused by the failure of the spiral spring in an extreme case is avoided, and the absolute safety of the building structure is ensured.
[0015] In a possible implementation, the height of the second displacement space is not greater than the height of the first displacement space, and the height of the first displacement space is not greater than the maximum value of the vertical compression displacement amount of the middle seat plate.
[0016] By setting suitable heights of the first displacement space and the second displacement space, the vertical displacement of the middle base plate and the vertical vibration reduction assembly within the maximum vertical compression displacement amount can be limited, the vibration reduction function can be ensured to the maximum extent, the failure of the vertical vibration reduction assembly in an extreme case can be avoided to cause the failure of the bearing capacity of the support, and the absolute safety of the building structure can be ensured.
[0017] In a possible implementation, the friction pair includes a sliding plate and a friction plate, the sliding plate is fixed to the bottom wall of the upper base plate, and the friction plate is embedded and fixed to the top wall of the middle base plate.
[0018] The horizontal isolation function is exerted by horizontal displacement friction between the sliding plate and the friction plate of the friction pair, and the seismic energy input into the structure is dissipated.
[0019] In a possible implementation, an upper base plate basin ring is annularly arranged outside the bottom wall of the upper base plate and the outer side of the sliding plate, and an elastic reset assembly is arranged between the inner side wall of the upper base plate basin ring and the outer side wall of the upper end of the lower base plate basin ring.
[0020] The elastic reset assembly is arranged between the inner side wall of the upper base plate basin ring and the outer side wall of the upper end of the lower base plate basin ring, and when the upper base plate and the friction pair move horizontally for isolation, the elastic reset assembly can reset to efficiently exert the isolation function.
[0021] In a possible implementation, the elastic reset assembly includes at least two elastic members, the two elastic members are symmetrically arranged along the central axis of the lower base plate basin ring, and a plurality of elastic members are distributed along the outer periphery of the lower base plate basin ring.
[0022] The two elastic members are symmetrically arranged along the central axis of the lower base plate basin ring, and the plurality of elastic members are distributed along the outer periphery of the lower base plate basin ring, so that the upper base plate and the friction pair can be reset in all directions horizontally, thereby achieving the isolation of the support to seismic vibration in any direction horizontally.
[0023] In a possible implementation, a plurality of first reinforcing ribs are arranged between the lower base plate and the lower base plate basin ring, the plurality of first reinforcing ribs are distributed along the periphery of the lower base plate basin ring; and a plurality of second reinforcing ribs are arranged between the upper base plate and the upper base plate basin ring, the plurality of second reinforcing ribs are distributed along the periphery of the upper base plate basin ring.
[0024] The plurality of first reinforcing ribs are arranged between the lower base plate and the lower base plate basin ring, and the plurality of second reinforcing ribs are arranged between the upper base plate and the upper base plate basin ring, so that the strength and stability of the entire support can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those of ordinary skill in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0026] Figure 1 The schematic diagram of the vibration double-control support provided by the embodiments of the present application.
[0027] Figure 2 The Figure 1 The cross-sectional view of A-A.
[0028] Figure legend: 1-upper seat plate; 11-upper seat plate basin ring; 12-second reinforcing rib; 2-friction pair; 21-sliding plate; 22-friction plate; 3-middle seat plate; 4-vertical damping assembly; 41-viscous damper; 42-spiral spring; 43-limiting column; 5-lower seat plate; 51-lower seat plate basin ring; 511-limiting groove; 52-first reinforcing rib; 6-elastic member. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0030] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of the present application.
[0031] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0032] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the application is used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0033] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0034] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0035] Embodiment
[0036] The present application intends to improve the technical problem that the existing vibration and shock double control device is a simple stack combination of horizontal seismic isolation bearing and vertical vibration reduction element, and it is difficult to simultaneously and efficiently play the functions of seismic isolation and vibration reduction. A vibration and shock double control bearing is proposed, as shown in Figure 1 The lower seat plate 5 is provided with a lower seat plate 5 basin ring on the top wall, the upper end inner side wall of the lower seat plate 5 basin ring is circumferentially provided with a limiting groove 511, the middle seat plate 3 is clamped in the limiting groove 511, and the upper end outer side wall of the lower seat plate 5 basin ring and the outer circumference of the upper seat plate 1 are provided with an elastic reset assembly; the vertical vibration reduction assembly 4 is arranged in the lower seat plate 5 basin ring, the bottom of the vertical vibration reduction assembly 4 is connected with the top wall of the lower seat plate 5, and the top of the vertical vibration reduction assembly 4 is connected with the bottom wall of the middle seat plate 3.
[0037] The friction pair 2 and the vertical damping assembly 4 are directly connected through the middle seat plate 3, and the vertical displacement of the middle seat plate 3 can be guided through the limiting groove 511, and the horizontal and vertical displacements of the middle seat plate 3 are limited, the horizontal displacement is isolated through the friction pair 2, the structural seismic response is reduced, the seismic energy is dissipated, and the reset is realized through the elastic reset assembly; the vertical displacement is controlled through the vertical damping assembly 4 to control the train-induced vibration caused by the subway, and the energy of the vertical high-frequency vibration can be dissipated; not only the normal bearing function is met, but also the vertical vibration and the horizontal vibration are decoupled, the force transmission path is clear, and the isolation function and the damping function are maximized.
[0038] In some embodiments, a first displacement space is provided between the bottom wall of the middle seat plate 3 and the inner bottom wall of the limiting groove 511. The first displacement space is provided between the bottom wall of the middle seat plate 3 and the inner bottom wall of the limiting groove 511, and when the vertical damping assembly 4 vertically displaces to control the train-induced vibration, the middle seat plate 3 is driven to vertically displace with a certain displacement space, and the downward displacement distance of the vertical damping assembly 4 and the middle seat plate 3 is limited to a certain extent, so that the bearing capacity of the support is prevented from being lost due to the failure of the vertical damping assembly 4 in an extreme case, and the absolute safety of the building structure is ensured.
[0039] In some embodiments, as shown in Figure 2 The vertical damping assembly 4 includes a viscous damper 41 and a plurality of spiral springs 42. The viscous damper 41 is arranged in the middle of the lower seat plate 5, the bottom of the viscous damper 41 is connected with the top wall of the lower seat plate 5, and the top of the viscous damper 41 is connected with the bottom wall of the middle seat plate 3. The plurality of spiral springs 42 are arranged around the viscous damper 41 at intervals, one end of the spiral spring 42 is connected with the top wall of the lower seat plate 5, and the other end of the spiral spring 42 is connected with the bottom wall of the middle seat plate 3. As an example, the viscous damper 41 can be but is not limited to a cylinder type or wall type viscous damper 41. The viscous damper 41 and the plurality of spiral springs 42 are used in combination as the vertical damping assembly 4, the plurality of spiral springs 42 can control the train-induced vibration caused by the subway, and the viscous damper 41 can dissipate the energy of the vertical high-frequency vibration, thereby efficiently playing the damping function.
[0040] In other embodiments, the spiral spring 42 can also be a disc spring, a rubber spring, a steel wire rope isolator, or other vertical damping members.
[0041] In some embodiments, each group of spiral springs 42 includes four spiral springs 42, and the four spiral springs 42 are distributed in a square pattern. The four spiral springs 42 are distributed in a square pattern to form a group of spiral springs 42, which can improve the stability and vertical damping efficiency.
[0042] It should be noted that the vertical stiffness of the support is controlled by designing the material, number, pitch, wire diameter, etc. of the group of helical springs 42 to achieve the required vertical stiffness, so that the vertical frequency of the support is 3-8 Hz, the acceleration response control effect of the vehicle-induced vertical vibration is obvious, the vertical vibration decibel reduction value is greater than 10 decibels, and the control demand of the subway vertical vibration is met.
[0043] In some embodiments, a plurality of limiting columns 43 are further arranged on the lower seat plate 5, one end of the limiting column 43 is connected with the top wall of the lower seat plate 5, and the other end of the limiting column 43 has a second displacement space with the bottom wall of the middle seat plate 3; one limiting column 43 is arranged at the center position of one group of helical springs 42. One limiting column 43 is arranged at the center position of one group of helical springs 42, and the top end of the limiting column 43 has a second displacement space with the bottom wall of the middle seat plate 3. When the vertical vibration reduction assembly 4 vertically displaces to control the vehicle-induced vibration, the middle seat plate 3 is driven to vertically displace with a certain displacement space, and the limiting column 43 further limits the downward displacement distance of the middle seat plate 3, avoiding the failure of the helical spring 42 in the extreme case to cause the failure of the bearing capacity of the support, and ensuring the absolute safety of the building structure.
[0044] In some embodiments, the height of the second displacement space is not greater than the height of the first displacement space, and the height of the first displacement space is not greater than the maximum value of the vertical compression displacement amount of the middle seat plate 3. By setting the appropriate height of the first displacement space and the second displacement space, the vertical displacement of the middle seat plate 3 and the vertical vibration reduction assembly 4 within the maximum vertical compression displacement amount is limited, which not only ensures the maximum vibration reduction function, but also avoids the failure of the vertical vibration reduction assembly 4 in the extreme case to cause the failure of the bearing capacity of the support, and ensures the absolute safety of the building structure.
[0045] In some embodiments, the friction pair 2 includes a sliding plate 21 and a friction plate 22, the sliding plate 21 is fixed to the bottom wall of the upper seat plate 1, and the friction plate 22 is embedded and fixed to the top wall of the middle seat plate 3. As an example, the sliding plate 21 is a mirror surface stainless steel. The friction plate 22 can be but is not limited to a polytetrafluoroethylene plate, an ultrahigh molecular weight polyethylene plate, and a polyformaldehyde plate. The horizontal displacement friction between the sliding plate 21 and the friction plate 22 of the friction pair 2 plays a horizontal isolation function and dissipates the seismic energy input into the structure.
[0046] In some embodiments, the bottom wall of the upper seat plate 1 is circumferentially surrounded by an upper seat plate 1 basin ring, and an elastic reset assembly is arranged between the inner side wall of the upper seat plate 1 basin ring and the upper end outer side wall of the lower seat plate 5 basin ring. The elastic reset assembly is arranged between the inner side wall of the upper seat plate 1 basin ring and the upper end outer side wall of the lower seat plate 5 basin ring, which can reset the horizontal movement of the upper seat plate 1 and the friction pair 2 to efficiently play the isolation function.
[0047] It should be noted that the horizontal stiffness of the elastic reset assembly is the horizontal elastic stiffness required to be designed for the support. The elastic compression displacement of the elastic reset assembly is the horizontal displacement required to be designed for the support.
[0048] In some embodiments, the elastic reset assembly includes at least two elastic members 6, the two elastic members 6 are symmetrically arranged along the central axis of the lower seat plate 5 basin ring, and a plurality of elastic members 6 are distributed along the outer circumference of the lower seat plate 5 basin ring. As an example, the elastic member 6 can be but not limited to a plate spring. The two elastic members 6 are symmetrically arranged along the central axis of the lower seat plate 5 basin ring, and a plurality of elastic members 6 are distributed along the outer circumference of the lower seat plate 5 basin ring, which can provide the horizontal elastic stiffness of the support and provide the restoring force, which is beneficial to the reset of the upper seat plate 1 and the friction pair 2 in all directions horizontally, so as to realize the isolation of the support to the seismic motion in any direction horizontally.
[0049] In some embodiments, a plurality of first reinforcing ribs 52 are arranged between the lower seat plate 5 and the lower seat plate 5 basin ring, and the plurality of first reinforcing ribs 52 are distributed along the circumference of the lower seat plate 5 basin ring; a plurality of second reinforcing ribs 12 are arranged between the upper seat plate 1 and the upper seat plate 1 basin ring, and the plurality of second reinforcing ribs 12 are distributed along the circumference of the upper seat plate 1 basin ring. The arrangement of the plurality of first reinforcing ribs 52 between the lower seat plate 5 and the lower seat plate 5 basin ring and the plurality of second reinforcing ribs 12 between the upper seat plate 1 and the upper seat plate 1 basin ring can effectively improve the strength and stability of the entire support.
[0050] The above is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A seismically controlled support, characterized by, The vertical damping assembly is arranged in the lower seat plate basin ring, the bottom of the vertical damping assembly is connected with the top wall of the lower seat plate, and the top of the vertical damping assembly is connected with the bottom wall of the middle seat plate.
2. The seismic double control bearing according to claim 1, wherein The bottom wall of the middle seat plate and the inner bottom wall of the limiting groove have a first displacement space.
3. The seismic double control bearing of claim 2, wherein, The vertical damping assembly includes a viscous damper and multiple groups of spiral springs; the viscous damper is arranged in the middle part of the lower seat plate, the bottom of the viscous damper is connected with the top wall of the lower seat plate, and the top of the viscous damper is connected with the bottom wall of the middle seat plate; multiple groups of the spiral springs are arranged at intervals around the viscous damper, one end of the spiral spring is connected with the top wall of the lower seat plate, and the other end of the spiral spring is connected with the bottom wall of the middle seat plate.
4. The seismic double control bearing of claim 3, wherein, Each group of the spiral springs includes four spiral springs, and the four spiral springs are distributed at intervals in a square shape.
5. The seismic double control bearing of claim 4, wherein, The lower seat plate is further provided with multiple limiting columns, one end of the limiting column is connected with the top wall of the lower seat plate, and the other end of the limiting column has a second displacement space with the bottom wall of the middle seat plate; one limiting column is arranged at the center position of one group of the spiral springs.
6. The seismic double control bearing of claim 5, wherein, The height of the second displacement space is not greater than the height of the first displacement space, and the height of the first displacement space is not greater than the maximum value of the vertical compression displacement amount of the middle seat plate.
7. The seismic double control bearing of claim 1, wherein, The friction pair includes a sliding plate and a friction plate, the sliding plate is fixed to the bottom wall of the upper seat plate, and the friction plate is embedded and fixed to the top wall of the middle seat plate.
8. The seismic double control bearing of claim 7, wherein, The bottom wall of the upper seat plate is provided with an upper seat plate basin ring outside the outer periphery of the sliding plate, and the inner side wall of the upper seat plate basin ring and the outer side wall of the upper end of the lower seat plate basin ring are provided with the elastic reset assembly.
9. The seismic double control bearing of claim 8, wherein, The elastic reset assembly includes at least two elastic members, the two elastic members are symmetrically arranged along the central axis of the lower seat plate basin ring, and multiple elastic members are distributed at intervals in a circumferential direction outside the lower seat plate basin ring.
10. The seismic double control bearing of claim 8, wherein, Multiple first reinforcing ribs are arranged between the lower seat plate and the lower seat plate basin ring, and multiple second reinforcing ribs are arranged between the upper seat plate and the upper seat plate basin ring.