High-damping vibration double-control three-dimensional seismic isolation support
By introducing stacked rubber support and vertical high damping dampers into the seismic isolation support, the problem that the prior art cannot effectively isolate the vertical vibration caused by rail transit is solved, and the dual seismic isolation effect in the vertical and horizontal directions of the building is achieved.
Patent Information
- Application Number
- CN202420557752.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-21
AI Technical Summary
The existing technology mainly considers horizontal earthquakes when designing earthquake isolation, and cannot effectively isolate vertical vibrations caused by rail transit, which will affect the living environment, precision instruments and building life.
High-dampening vibration dual-controlled three-dimensional shock-isolating support is adopted, including laminated rubber support and vertical high-damping dampers. The laminated rubber support provides horizontal shock isolation through a laminated design of rubber layer and stiffened steel plate; the vertical high-dampening damper absorbs and consumes vertical vibration energy through a combination of high-strength steel plate and high-dampening material layer.
It realizes effective isolation of vertical vibration of the building, while maintaining horizontal isolation ability, achieving the effect of dual control of vibration, extending the life of the building and improving the living environment.
Smart Images
Figure CN222575820U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of seismic isolation technology, and in particular to a high-damping vibration dual-control three-dimensional seismic isolation bearing. Background Art
[0002] With the advancement of urbanization, existing roads cannot meet travel needs, leading to the rapid development of urban rail transit in recent years. However, rail transit trains will form resonance when traveling, which will have a significant impact on the living environment of surrounding houses, damage to precision instruments and the life of buildings. Therefore, the demand for vertical vibration isolation of buildings along subways and high-speed railways is becoming increasingly prominent. However, traditional seismic isolation technology is mainly designed to isolate horizontal earthquakes, and cannot isolate the vertical vibration caused by rail transit. Summary of the invention
[0003] The purpose of the present application is to provide a high-damping, vibration-double-controlled three-dimensional seismic isolation bearing to solve the problem that the seismic isolation technology in the prior art is mainly designed to isolate horizontal earthquakes but cannot isolate the vertical vibration caused by rail transit.
[0004] To achieve the above-mentioned purpose, the embodiment of the present application provides a high-damping vibration dual-control three-dimensional seismic isolation bearing, including: a laminated rubber bearing, a vertical high-damping damper, wherein:
[0005] The laminated rubber bearing comprises a rubber layer and a stiffening steel plate which are stacked and connected to each other in the vertical direction, and a connecting plate is connected to the upper and lower ends of the laminated rubber bearing respectively;
[0006] The vertical high-damping damper includes multiple groups of vertical damping units, which include high-strength steel plates and high-damping material layers stacked and connected to each other in the horizontal direction. The high-damping material layer of each group of vertical damping units is arranged between two layers of the high-strength steel plates, the upper end of the high-damping material layer is higher than the upper end of the high-strength steel plate, and the lower end of the high-damping material layer is higher than the lower end of the high-strength steel plate. The upper and lower ends of the vertical high-damping damper are respectively connected to a connecting plate.
[0007] Optionally, the rubber layer and the stiffening steel plate are bonded by thermal vulcanization.
[0008] Optionally, the vertical damping unit is a flat plate structure, and a plurality of groups of vertical damping units are connected in parallel in the horizontal direction to form the vertical high damping damper.
[0009] Optionally, the vertical damping unit is a cylindrical structure, and a plurality of groups of vertical damping units are connected in parallel in the horizontal direction to form the vertical high damping damper.
[0010] Optionally, a polymer elastic material or a damping fluid is arranged inside the cylindrical structure of the vertical damping unit.
[0011] Optionally, both upper and lower ends of the vertical high damping damper are connected to the connecting plate by welding or bolting.
[0012] Optionally, the vertical high damping damper also includes a rubber viscoelastic damper or a viscous damper.
[0013] Optionally, the laminated rubber bearing is located below the vertical high damping damper, the lower end of the laminated rubber bearing is connected to a first connecting plate, the second connecting plate is connected between the laminated rubber bearing and the vertical high damping damper, and the upper end of the vertical high damping damper is connected to a third connecting plate.
[0014] Optionally, the laminated rubber bearing is located above the vertical high damping damper, the lower end of the vertical high damping damper is connected to a first connecting plate, a second connecting plate is connected between the laminated rubber bearing and the vertical high damping damper, and the upper end of the laminated rubber bearing is connected to a third connecting plate.
[0015] The embodiments of the present application have the following advantages:
[0016] The embodiment of the present application provides a high-damping vibration dual-control three-dimensional seismic isolation bearing, including: a laminated rubber bearing and a vertical high-damping damper, wherein the laminated rubber bearing includes a rubber layer and a stiffening steel plate which are stacked and connected to each other in the vertical direction, and a connecting plate is respectively connected to the upper and lower ends of the laminated rubber bearing; the vertical high-damping damper includes a plurality of groups of vertical damping units, and the vertical damping units include high-strength steel plates and high-damping material layers which are stacked and connected to each other in the horizontal direction, and the high-damping material layer of each group of vertical damping units is arranged between two layers of the high-strength steel plates, the upper end of the high-damping material layer is higher than the upper end of the high-strength steel plate, and the lower end of the high-damping material layer is higher than the lower end of the high-strength steel plate, and a connecting plate is respectively connected to the upper and lower ends of the vertical high-damping damper.
[0017] Compared with the prior art, the vertical high damping damper provided by the above technical solution generates higher damping through its own vertical movement to absorb the corresponding vertical vibration energy, thereby reducing the vertical frequency of the vibration-isolating building, and the laminated rubber bearing performs horizontal vibration isolation under earthquakes. The two work together to meet both vertical vibration isolation and horizontal vibration isolation, achieving the effect of dual control of building vibration and seismicity. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.
[0019] Figure 1 A schematic diagram of the three-dimensional structure of a high-damping vibration dual-control three-dimensional seismic isolation support provided in some embodiments of the present application;
[0020] Figure 2 A schematic diagram of the three-dimensional structure of a high-damping, vibration-controlled, dual-three-dimensional seismic isolation support provided in some other embodiments of the present application;
[0021] Figure 3 A schematic diagram of the vertical pressure test results of a high-damping vibration-controlled three-dimensional seismic isolation bearing using a flat-plate-type vertical high-damping damper provided in some embodiments of the present application;
[0022] Figure 4 A schematic diagram of the test results of a horizontal shear test of a high-damping vibration-controlled three-dimensional seismic isolation bearing using a flat-plate-type vertical high-damping damper provided in some embodiments of the present application;
[0023] Figure 5 A schematic diagram of the limit shear test results of a high-damping vibration-controlled three-dimensional seismic isolation bearing using a flat-plate type vertical high-damping damper provided in some embodiments of the present application. DETAILED DESCRIPTION
[0024] The following is a description of the implementation of the present application by specific specific embodiments. People familiar with the technology can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0025] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "set", "install", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0026] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.
[0027] The present application provides a high-damping vibration dual-control three-dimensional seismic isolation bearing, referring to Figure 1 to Figure 2 ,include:
[0028] Laminated rubber bearing 2, vertical high damping damper, wherein,
[0029] The laminated rubber bearing 2 includes a rubber layer and a stiffening steel plate which are stacked and connected to each other in the vertical direction, and a connecting plate is connected to the upper and lower ends of the laminated rubber bearing 2 respectively;
[0030] The vertical high-damping damper includes multiple groups of vertical damping units, which include high-strength steel plates 4 and high-damping material layers 5 stacked and connected to each other in the horizontal direction. The high-damping material layer 5 of each group of vertical damping units is arranged between two layers of the high-strength steel plates 4, the upper end of the high-damping material layer 5 is higher than the upper end of the high-strength steel plate 4, and the lower end of the high-damping material layer 5 is higher than the lower end of the high-strength steel plate 4. The upper and lower ends of the vertical high-damping damper are respectively connected to a connecting plate.
[0031] Specifically, the laminated rubber bearing 2, as an important component of the seismic isolation bearing, adopts an alternating stacking design of rubber layers and stiffening steel plates. This design not only ensures the bearing capacity and stability of the bearing, but also gives it good deformation ability and recovery. The rubber layer has excellent elasticity and shock absorption properties, which can effectively absorb and disperse seismic energy, while the stiffening steel plate enhances the rigidity and stability of the bearing, making it less likely to deform or be damaged when subjected to earthquakes. A connecting plate is connected to each of the upper and lower ends of the laminated rubber bearing 2. These connecting plates are made of high-strength materials and have sufficient rigidity and durability to ensure a firm connection between the bearing and the building structure. Through the connecting plates, the laminated rubber bearing 2 can form a whole with other parts of the building to jointly resist the effects of seismic forces.
[0032] The vertical high damping damper is another important component of the seismic isolation bearing. It is composed of multiple groups of vertical damping units, each of which contains a high-strength steel plate 4 and a high-damping material layer 5. The high-strength steel plate 4 provides good structural support for the damper, while the high-damping material layer 5 has excellent damping performance and can effectively consume seismic energy. The upper and lower ends of the high-damping material layer 5 are higher than the high-strength steel plate 4. This design enables the upper end of the high-damping material layer 5 to be connected to the connecting plate, and the upper end of the high-strength steel plate 4 is not connected to the connecting plate and flows out a certain space, thereby providing displacement space for the high-damping material layer 5 to absorb vertical vibration energy.
[0033] In some embodiments, the rubber layer and the stiffening steel plate are bonded by thermal vulcanization.
[0034] In some embodiments, the vertical damping unit is a flat plate structure, and a plurality of groups of vertical damping units are connected in parallel in the horizontal direction to form the vertical high damping damper.
[0035] refer to Figure 1 In some embodiments, the vertical damping unit is a cylindrical structure, and a plurality of groups of vertical damping units are connected in parallel in the horizontal direction to form the vertical high damping damper.
[0036] refer to Figure 2 In some embodiments, the cylindrical structure of the vertical damping unit is provided with polymer elastic material or damping fluid, and other materials that meet this function.
[0037] In some embodiments, both upper and lower ends of the vertical high damping damper are connected to the connecting plate by welding or bolting.
[0038] In some embodiments, the vertical high damping damper further includes a rubber viscoelastic damper or a viscous damper.
[0039] In some embodiments, the laminated rubber bearing 2 is located below the vertical high damping damper, the lower end of the laminated rubber bearing 2 is connected to the first connecting plate 1, the second connecting plate 3 is connected between the laminated rubber bearing 2 and the vertical high damping damper, and the upper end of the vertical high damping damper is connected to the third connecting plate 6.
[0040] In some embodiments, the laminated rubber bearing 2 is located above the vertical high damping damper, the lower end of the vertical high damping damper is connected to the first connecting plate 1, the second connecting plate 3 is connected between the laminated rubber bearing 2 and the vertical high damping damper, and the upper end of the laminated rubber bearing 2 is connected to the third connecting plate 6.
[0041] In some embodiments, the high-damping vibration-controlled three-dimensional seismic isolation bearing provided by the present application has a vertical natural frequency of 4 to 8 Hz, a vertical damping ratio of more than 25%, and a horizontal seismic isolation bearing that meets the limit of 450% horizontal shear.
[0042] refer to Figures 3 to 5 The results of the mechanical performance test of the three-dimensional seismic isolation bearing using the high damping vibration-controlled three-dimensional seismic isolation bearing scheme with a flat plate-type vertical high damping damper are as follows:
[0043]
[0044] The above results show that the vertical damper of the high-damping vibration-controlled three-dimensional seismic isolation bearing provides stable vertical stiffness under different pressures, and the vertical natural frequency can be maintained at a reduced level of 4-6Hz under different pressures, which has a good effect on the isolation of vertical vibration of the building. The vertical damping of more than 28% has a higher energy dissipation capacity. The 100% horizontal performance of the high-damping vibration-controlled three-dimensional seismic isolation bearing has a deviation of less than 10% under different pressures, and the ultimate shear strain reaches 450%. The bearings meet the requirements of "Rubber Bearings Part 3 Building Seismic Isolation Rubber Bearings" GB20688.3-2006, "Building Seismic Isolation Rubber Bearings" JG / T118-2018, and "Performance Requirements and Inspection Standards for Laminated Rubber Seismic Isolation Bearings for Construction Engineering" DBJ53 / T-47-2020.
[0045] In summary, compared with the prior art, the vertical high damping damper provided by the above technical solution generates higher damping through its own vertical movement to absorb the corresponding vertical vibration energy, thereby reducing the vertical frequency of the vibration isolation building, and the laminated rubber bearing performs horizontal vibration isolation under earthquakes. The two work together to meet both vertical vibration isolation and horizontal vibration isolation, achieving the effect of dual control of building vibration and vibration.
[0046] In addition, most of the three-dimensional bearings used for dual vibration control on the market now use thick-fleshed bearings. The thick-fleshed bearings have a large compression amount during the pre-compression process, which can reach about 50mm. When the product is designed according to the pressure-free height, the building will experience a large settlement. The present invention adopts the synergistic effect of parallel dampers, and the compression can be controlled within 10-15mm with its own high damping energy dissipation, and the compression amount is relatively small.
[0047] Note that, unless otherwise directly stated, all features disclosed in this specification (including any attached claims, abstracts and drawings) may be replaced by alternative features for achieving the same, equivalent or similar purposes. Therefore, unless otherwise explicitly stated, each feature disclosed is only an example of a group of equivalent or similar features. Where used, further, preferably, further and more preferably are simple beginnings for elaborating another embodiment based on the aforementioned embodiment, and the content of the further, preferably, further or more preferably followed by the combination with the aforementioned embodiment constitutes a complete construction of another embodiment. Several further, preferably, further or more preferably settings following the same embodiment can be arbitrarily combined to form another embodiment.
[0048] In the implementation of functions and steps, the corresponding functions and steps in various embodiments may also occur in a different order than shown. For example, two consecutive functions and steps may actually be performed or implemented substantially in parallel, and they may sometimes be performed or implemented in the opposite order, depending on the functions involved.
[0049] Although the present application has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements may be made to the present application. Therefore, these modifications or improvements made without departing from the spirit of the present application all fall within the scope of protection claimed in the present application.
Claims
1. A high damping vibration dual-control three-dimensional seismic isolation bearing, characterized in that: include: Laminated rubber bearings, vertical high damping dampers, including: The laminated rubber bearing comprises a rubber layer and a stiffening steel plate which are stacked and connected to each other in the vertical direction, and a connecting plate is connected to the upper and lower ends of the laminated rubber bearing respectively; The vertical high-damping damper includes multiple groups of vertical damping units, which include high-strength steel plates and high-damping material layers stacked and connected to each other in the horizontal direction. The high-damping material layer of each group of vertical damping units is arranged between two layers of the high-strength steel plates, the upper end of the high-damping material layer is higher than the upper end of the high-strength steel plate, and the lower end of the high-damping material layer is higher than the lower end of the high-strength steel plate. The upper and lower ends of the vertical high-damping damper are respectively connected to a connecting plate.
2. The high damping vibration dual-control three-dimensional seismic isolation bearing according to claim 1 is characterized in that: The rubber layer and the stiffening steel plate are bonded by thermal vulcanization.
3. The high damping vibration dual-control three-dimensional seismic isolation bearing according to claim 1 is characterized in that: The vertical damping unit is a flat plate structure, and a plurality of groups of vertical damping units are connected in parallel in the horizontal direction to form the vertical high damping damper.
4. The high damping vibration dual-control three-dimensional seismic isolation bearing according to claim 1 is characterized in that: The vertical damping unit is a cylindrical structure, and a plurality of groups of vertical damping units are connected in parallel in the horizontal direction to form the vertical high damping damper.
5. The high damping vibration dual-control three-dimensional seismic isolation bearing according to claim 4 is characterized in that: The cylindrical structure of the vertical damping unit is provided with polymer elastic material or damping fluid.
6. The high damping vibration dual-control three-dimensional seismic isolation bearing according to claim 1 is characterized in that: The upper and lower ends of the vertical high damping damper are connected to the connecting plate by welding or bolt connection.
7. The high damping vibration dual-control three-dimensional seismic isolation bearing according to claim 1 is characterized in that: The vertical high damping damper also includes a rubber viscoelastic damper or a viscous damper.
8. The high damping vibration dual-control three-dimensional seismic isolation bearing according to claim 1 is characterized in that: The laminated rubber bearing is located below the vertical high damping damper, the lower end of the laminated rubber bearing is connected to the first connecting plate, the second connecting plate is connected between the laminated rubber bearing and the vertical high damping damper, and the upper end of the vertical high damping damper is connected to the third connecting plate.
9. The high damping vibration dual-control three-dimensional seismic isolation bearing according to claim 1 is characterized in that: The laminated rubber bearing is located above the vertical high damping damper, the lower end of the vertical high damping damper is connected to the first connecting plate, the second connecting plate is connected between the laminated rubber bearing and the vertical high damping damper, and the upper end of the laminated rubber bearing is connected to the third connecting plate.