Combined three-dimensional vibration double-control support

Abstract

The utility model discloses a combined type three-dimensional vibration double-control support. The combined type three-dimensional vibration double-control support comprises a horizontal vibration isolation support and a vertical vibration isolation unit. The vertical vibration isolation units of the horizontal vibration isolation support are mutually decoupled; the vertical vibration isolation unit comprises a plurality of pre-pressing tensile devices and a plurality of vertical pressed parts; the plurality of pre-pressing tensile devices are arranged between the peripheral stress surfaces; and the vertical compression piece is arranged between the stress surfaces on the inner side. Vertical vibration isolation and horizontal vibration isolation of the support are mutually decoupled, the vertical vibration isolation unit is provided with damping, the structure is safe and reliable, the vibration isolation effect meets the requirements of various scenes, and the price is low.

Description

Technical Field

[0001] The present application relates to the technical field of seismic isolation bearings, and in particular to a combined three-dimensional vibration dual-control bearing. Background Art

[0002] Commonly used bearings in building seismic isolation include rubber seismic isolation bearings, sliding seismic isolation bearings, steel spring seismic isolation bearings, etc., which are mainly used for building seismic isolation to reduce the impact of earthquake disasters, noise and vibration on buildings. Due to its high bearing capacity, it has a high vertical stiffness. This characteristic also makes the existing seismic isolation bearings need to be improved in vertical earthquake and vibration control performance.

[0003] Existing vibration isolators for controlling vertical vibrations are mainly spring isolators, such as the damping spring isolator for construction disclosed in CN202223026073.7. However, the cost of using spring isolators is generally high, and the spring components are more likely to fail when subjected to long-term stress. After failure, it is difficult to detect and replace it in time, which hinders its further promotion and use.

[0004] The information disclosed in the background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in the field. Utility Model Content

[0005] In response to the above technical problems, the present application provides a combined three-dimensional vibration dual-control bearing, which has a wide range of applications, high safety, good vibration isolation effect and low cost.

[0006] The present application provides a combined three-dimensional seismic dual-control bearing, including: a horizontal seismic isolation bearing and a vertical vibration isolation unit; the horizontal seismic isolation bearing and the vertical vibration isolation unit are decoupled from each other; the vertical vibration isolation unit includes: a plurality of pre-stressing and tensile devices, a plurality of vertical compression parts; the plurality of pre-stressing and tensile devices are arranged between the outer force-bearing surfaces; the vertical compression parts are arranged between the inner force-bearing surfaces.

[0007] Preferably, during installation, the vertical pressure-bearing member is pre-compressed and installed, and the pre-compressed anti-tension device is compressed and locked;

[0008] When encountering shear force, the pre-compression tensile device is tensioned and locked.

[0009] Preferably, the vertical pressure-bearing member comprises: a vertical vibration isolation support; the vertical vibration isolation support is arranged on the central axis of the vertical pressure-bearing member.

[0010] Preferably, the vertical vibration isolation support is arranged around the central axis of the vertical pressure member.

[0011] Preferably, the vertical pressure member comprises: a plurality of horizontal limit devices; the horizontal limit devices are arranged between the circumferentially spaced vertical vibration isolation supports.

[0012] Preferably, the horizontal limit device includes: a guide rod and a guide sleeve; one end of the guide sleeve is fixed to the force-bearing surface of the vertical vibration isolation unit, and an opening is arranged on the other end; one end of the guide rod is fixed to the force-bearing surface of the vertical vibration isolation unit, and the other end is inserted into the guide sleeve and movably arranged.

[0013] Preferably, it comprises: an upper connecting plate and a lower connecting plate; the upper connecting plate and the lower connecting plate are arranged on the force-bearing surface of the vertical pressure-bearing member.

[0014] Preferably, one end of the pre-compression and anti-tension device is detachably connected to the upper connecting plate, and the other end is connected to the lower connecting plate.

[0015] Preferably, the vertical vibration isolation support comprises: multiple layers of high elastic damping material layers and multiple layers of steel plates; any one of the high elastic damping material layers is sandwiched between adjacent steel plates;

[0016] The steel plate layers of the vertical vibration isolation bearings are respectively connected to the load-bearing surfaces.

[0017] Preferably, the mounting end of the guide rod is connected to the lower connecting plate; and the mounting end of the guide sleeve is connected to the horizontal seismic isolation support.

[0018] The beneficial effects of this application include:

[0019] 1) The combined three-dimensional vibration dual-control bearing provided in this application has vertical vibration isolation and horizontal vibration isolation decoupled from each other, the vertical vibration isolation unit has its own damping, the structure is safe and reliable, the vibration isolation effect meets the needs of various scenarios, and the price is low.

[0020] 2) The combined three-dimensional vibration dual-control bearing provided in this application has a vertical natural frequency of 1 to 10 Hz and a vertical equivalent damping ratio of 5 to 10%. The bearing has excellent performance and can meet the requirements for the use of seismic isolation bearings in existing buildings. The device is provided with a connected horizontal seismic isolation bearing and a vertical vibration isolation unit. The horizontal seismic isolation bearing offsets the shear force, and the vertical vibration isolation unit realizes reliable offset of the vertical force. The vertical vibration isolation unit does not undergo vertical or lateral displacement under long-term pressure and shear force environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a top view of the structure of a combined three-dimensional vibration dual-control support in at least one embodiment provided in the present application;

[0022] Figure 2 for Figure 1 AA cross-sectional structure diagram;

[0023] Figure 3 A schematic diagram of a combined three-dimensional vibration dual-control support under long-term load in at least one embodiment provided in the present application;

[0024] Figure 4 A schematic diagram of a combined three-dimensional vibration dual-control support in a shear state in at least one embodiment provided in the present application;

[0025] Figure 5 A schematic front and cross-sectional view of a vertical vibration isolation support in at least one embodiment provided in the present application;

[0026] Legend:

[0027] Horizontal vibration isolation bearing 1, upper connecting plate 3, vertical vibration isolation bearing 8, horizontal limit device, pre-compression and tension device 4, lower connecting plate 5, bolt 2, guide rod 7, guide sleeve 6, steel plate 81, high elastic damping material layer 82. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0030] The technical means that are not described in detail in this application and are not used to solve the technical problems of this application are all set according to the common knowledge in the field, and can be implemented in a variety of common knowledge settings.

[0031] See also Figures 1 to 5 The combined three-dimensional vibration dual-control bearing provided in the present application includes: a horizontal vibration isolation bearing 1 and a vertical vibration isolation unit. The horizontal vibration isolation bearing 1 and the vertical vibration isolation unit are connected in series up and down and decoupled from each other. The horizontal vibration isolation bearing 1 is arranged on the top surface of the vertical vibration isolation unit and is connected to the vertical vibration isolation unit.

[0032] The vertical vibration isolation unit includes: an upper connecting plate 3, a vertical vibration isolation support 8, a horizontal limit device, a pre-compression and tension device 4, a lower connecting plate 5, a pre-compression and tension device 4 and a lower connecting plate 5. A horizontal vibration isolation support 1 is arranged on the upper connecting plate 3; a plurality of vertical vibration isolation supports 8 are arranged between the lower connecting plate 5 and the upper connecting plate 3; a plurality of pre-compression and tension devices 4 are arranged on the outer periphery of the lower connecting plate 5 and the upper connecting plate 3, and a pre-compression force is set when the pre-compression and tension devices 4 are installed.

[0033] The vertical vibration isolation unit includes: a pre-stressing and anti-tensile device 4, the bottom end of which is fixedly connected to the lower connecting plate 5; the upper end of the pre-stressing and anti-tensile device 4 is passed through the upper connecting plate 3. During installation, the upper connecting plate 3 is pre-stressed and then the connection position between the pre-stressing and anti-tensile device 4 and the upper connecting plate 3 is installed. The vertical vibration isolation support 8 is used to bear force to realize the pre-stressing and anti-tensile functions. The pre-stressing and anti-tensile device 4 can be a rigid structure or a flexible structure.

[0034] The horizontal limit device passes through the lower connecting plate 5 and is arranged on the lower connecting plate 5 , and the other end of the horizontal limit device passes through the upper connecting plate 3 and is detachably connected to the horizontal seismic isolation support 1 .

[0035] In a specific embodiment, the vertical vibration isolation support 8 is formed by stacking a high elastic damping material layer 82 and a steel plate 81. The upper and lower end surfaces of the vertical vibration isolation support 8 are respectively provided with steel plates 81 connected to the lower connecting plate 5 and the upper connecting plate 3.

[0036] In a specific embodiment, a plurality of vertical vibration isolation supports 8 are arranged in the middle area between the lower connecting plate 5 and the upper connecting plate 3 , and the vertical vibration isolation supports 8 are centrally symmetrically distributed with respect to the central axis of the support.

[0037] In a specific embodiment, the horizontal limit device is arranged on the symmetry line of the support center axis and between the circumferentially adjacent vertical vibration isolation supports 8. This arrangement can improve the stress reliability of the lower structure of the device, and no deformation or displacement occurs when receiving shear force.

[0038] In a specific embodiment, it includes: a plurality of vertical vibration isolation supports 8; one vertical vibration isolation support 8 is arranged on the central axis of the support, and the remaining vertical vibration isolation supports 8 are arranged around the vertical vibration isolation support 8 on the central axis, see Figure 2 This arrangement can improve the force reliability, increase the number of vertical force-bearing members between the lower connecting plate 5 and the upper connecting plate 3, improve the uniformity of vertical force and realize reliable control of vertical force.

[0039] In a specific embodiment, the horizontal limit device includes: a guide rod 7 and a guide sleeve 6, wherein the guide sleeve 6 is arranged on the bottom surface of the upper connecting plate 3; the guide rod 7 is arranged on the top surface of the lower connecting plate 5; and the guide rod 7 is inserted into the opening at the bottom of the guide sleeve 6. A vertical displacement space for the guide rod 7 is reserved in the guide sleeve 6, which is convenient for use under long-term pressure and improves the force reliability of the device.

[0040] The guide rod 7 is integrated according to the stress condition of the pre-compression and tension-resistant device 4, and is connected with the upper and lower connecting plates 3 and 5 to realize the pre-compression and tension-resistant functions.

[0041] The device is subjected to long-term load conditions such as Figure 3As shown, when the upper construction is completed and the building is put into use, under the action of the upper dead load and live load, during installation, the vertical vibration isolation support 8 bulges on both sides under pressure, the middle diameter increases, and the guide rod 7 is inserted into the guide sleeve 6 and extends into the guide sleeve 6 for setting. After installation, the guide rod 7 performs vertical relative movement in the guide sleeve 6. After the pre-pressure is set, the vertical vibration isolation support 8 in a compressed state is locked by the pre-pressure tensile device 4. This is to achieve the reliability of force under long-term load conditions and prevent settlement during the construction process. This structure can achieve the locking of the horizontal upward displacement of the support to ensure that the vertical vibration isolation unit does not undergo horizontal deformation during long-term pressure-bearing.

[0042] The bolt head of the preload device 4 is disengaged from the upper connecting plate 3, and the support is in a free vibration state under the upper load. When the upper load changes or vibration strikes, the support moves up or down or vibrates at the equilibrium position to achieve a vibration isolation effect. When the vertical vibration is strong, when the building is lifted up or overturned under instantaneous acceleration, the preload device 4 plays a tensile role, so that the vertical vibration isolation support does not bear the tensile force.

[0043] This bearing plays a role in controlling vibration before an earthquake occurs.

[0044] The device is subject to shear forces and the load is as shown in Figure 4 When an earthquake occurs, the horizontal seismic isolation bearing 1 produces horizontal deformation under the action of the earthquake, consumes seismic energy, and ensures the safety of the upper building structure. The vertical vibration isolation bearing 8 bulges on both sides under pressure, and the guide rod 7 and the guide sleeve 6 move vertically relative to each other. Since the horizontal movement of the vertical vibration isolation unit is locked, the vertical vibration isolation unit is guaranteed not to undergo horizontal deformation. The bolt head of the preload device 4 is disengaged from the upper connecting plate 3, and the bearing is in a free vibration state under the upper load. When the vertical earthquake is strong, when the building is pulled up or overturned under instantaneous acceleration, the preload device 4 is transformed into a tensile device to maintain the shape of the vertical vibration isolation unit, so that the lower vertical vibration isolation unit of the vertical vibration isolation bearing is not subjected to tensile force.

[0045] In any embodiment provided in this application, the bearing is subjected to performance testing using a loading test machine, and after cyclic loading for 3 times, the vertical natural frequency of the bearing is 1-10 Hz, and the vertical equivalent damping ratio is 5-10%. The bearing can better withstand vertical force and realize reliable control of vertical force.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined three-dimensional vibration dual-control support, characterized in that: include: Horizontal vibration isolation support (1) and vertical vibration isolation unit; The vertical vibration isolation units of the horizontal vibration isolation support (1) are decoupled from each other; the vertical vibration isolation unit comprises: a plurality of pre-stressed tensile devices (4) and a plurality of vertical pressure-bearing members; the plurality of pre-stressed tensile devices (4) are arranged between the outer force-bearing surfaces; and the vertical pressure-bearing members are arranged between the inner force-bearing surfaces.

2. The combined three-dimensional vibration dual-control support according to claim 1 is characterized in that: During installation, the vertical pressure-bearing member is pre-compressed and installed, and the pre-compressed anti-tension device (4) is compressed and locked; When encountering shear tension, the pre-compression tension-resistant device (4) is tensioned and locked.

3. The combined three-dimensional vibration dual-control support according to claim 1 is characterized in that: The vertical pressure-bearing member comprises: a vertical vibration isolation support (8); the vertical vibration isolation support (8) is arranged on the central axis of the vertical pressure-bearing member.

4. The combined three-dimensional vibration dual-control support according to claim 2 is characterized in that: The vertical vibration isolation support (8) is arranged around the central axis of the vertical pressure-bearing member.

5. The combined three-dimensional vibration dual-control support according to claim 3 is characterized in that: The vertical pressure-bearing member comprises: a plurality of horizontal limit devices; the horizontal limit devices are arranged between circumferentially spaced vertical vibration isolation supports (8).

6. The combined three-dimensional vibration dual-control support according to claim 5 is characterized in that: The horizontal limit device comprises: a guide rod (7) and a guide sleeve (6); one end of the guide sleeve (6) is fixed to the force-bearing surface of the vertical vibration isolation unit, and the other end is provided with an opening; one end of the guide rod (7) is fixed to the force-bearing surface of the vertical vibration isolation unit, and the other end is inserted into the guide sleeve (6) and movably arranged.

7. The combined three-dimensional vibration dual-control support according to claim 1 or 6, characterized in that: include: An upper connecting plate (3) and a lower connecting plate (5); the upper connecting plate (3) and the lower connecting plate (5) are arranged on the force-bearing surface of the vertical pressure-bearing member.

8. The combined three-dimensional vibration dual-control support according to claim 7 is characterized in that: One end of the pre-compression and tension-resistant device (4) is detachably connected to the upper connecting plate (3), and the other end is connected to the lower connecting plate (5).

9. The combined three-dimensional vibration dual-control support according to claim 3 is characterized in that: The vertical vibration isolation support (8) comprises: multiple layers of high-elastic damping material layers (82) and multiple layers of steel plates (81); any one of the high-elastic damping material layers (82) is sandwiched between adjacent steel plates (81); The steel plate layers of the vertical vibration isolation supports (8) are respectively connected to the force-bearing surfaces.

10. The combined three-dimensional vibration dual-control support according to claim 7, characterized in that: The installation end of the guide rod (7) is connected to the lower connecting plate (5); the installation end of the guide sleeve (6) is connected to the horizontal seismic isolation support (1).

Images