Composite high-bearing-capacity three-dimensional vibration and shock double-control isolation bearing

Abstract

The utility model relates to technical fields especially a compound high bearing three -dimensional shock and vibration double -control shock insulation support, including upper support board, shock insulation device and lower support board, the recessed arc slide is equipped on the upper support board bottom, the lower support board is symmetrical with the upper support board upside down and both are cross -shaped setting, the shock insulation device is located between the upper support board and lower support board, the shock insulation device includes sleeve, pull -pressure axle and the damping assembly in sleeve, the damping assembly includes three layers steel ring -rubber shock insulation component, bearing pad and three layers annular spring that arrange and set successively, three layers steel ring -rubber shock insulation component is composed by inner ring steel ring, middle ring steel ring, outer ring steel ring and shear rubber layer, the sleeve is composed by the outer sleeve and inner sleeve of fixed connection, the pull -pressure axle passes through the outer sleeve top and reaches to three layers steel ring -rubber shock insulation component top contact with lower along, and this support can effectively respond to actual different direction coupling vibration load.

Description

Technical Field

[0001] This utility model relates to the field of building vibration reduction technology, and in particular to a composite high-load-bearing three-dimensional vibration dual-control seismic isolation bearing. Background Technology

[0002] In the field of building engineering, conventional seismic isolation methods mainly involve installing laminated steel plate rubber bearings or friction pendulum bearings between the superstructure and foundation of a building. These traditional seismic isolation bearings are indeed effective in resisting horizontal seismic forces, mitigating the damage caused by horizontal earthquakes to the building structure to some extent. However, they have significant limitations. When faced with vertical environmental vibrations, these bearings provide almost no seismic isolation. In real life, the sources of vertical environmental vibrations are quite widespread, such as vibrations generated by nearby heavy vehicles or subway operation. Because existing bearings cannot handle vertical vibrations, these vibrations can easily be transmitted into the building, affecting the comfort of occupants and potentially threatening the long-term stability of the building structure. Therefore, designing a high-load-bearing, energy-efficient, three-dimensional seismic-resistant dual-control bearing that meets both horizontal and vertical seismic isolation requirements is of significant research value. Utility Model Content

[0003] The purpose of this application is to provide a composite high-load-bearing three-dimensional vibration dual-control seismic isolation bearing, which aims to solve the problems in the prior art.

[0004] This application provides a composite high-load-bearing three-dimensional vibration dual-control seismic isolation bearing, including an upper support plate, a seismic isolation device, and a lower support plate. The bottom surface of the upper support plate is provided with a concave arc-shaped slide rail, within which an upper sliding block is slidably connected. The lower support plate is symmetrically arranged with the upper support plate in a cross-shaped configuration. A lower sliding block is slidably disposed within the arc-shaped slide rail of the lower support plate. The seismic isolation device is located between the upper and lower support plates and includes a sleeve, a tension / compression shaft, and a damping component located within the sleeve. The assembly includes three layers of steel ring-rubber vibration isolation components, load-bearing pads, and three layers of annular springs arranged sequentially. The three layers of steel ring-rubber vibration isolation components consist of an inner steel ring, a middle steel ring, an outer steel ring, and a shear rubber layer. The sleeve consists of an outer sleeve and an inner sleeve that are fixedly connected. The tension and compression shaft passes through the top of the outer sleeve and extends downwards to contact the top of the three layers of steel ring-rubber vibration isolation components. The tension and compression shaft is slidably connected to the outer sleeve. The top of the tension and compression shaft is fixedly connected to the upper sliding block, and the bottom of the inner sleeve is fixedly connected to the lower sliding block.

[0005] Furthermore, the middle steel ring is tangentially disposed between the inner and outer steel rings, and the shear rubber layer is located on the tangential surface between the middle steel ring and the inner and outer steel rings.

[0006] Furthermore, the cross-section of the middle steel ring is an inverted isosceles trapezoid, and the two inclined surfaces of the middle steel ring are tangent to the outer side of the inner steel ring and the inner side of the outer steel ring, respectively.

[0007] Furthermore, the sliding end of the arc-shaped slide is provided with a limiting block, and the two sides of the arc-shaped slide are provided with limiting baffles.

[0008] Furthermore, friction material is provided on the arc-shaped contact surfaces of the upper sliding block, the lower sliding block, and the arc-shaped slide rail.

[0009] Furthermore, the tension / compression shaft comprises a top pressure plate and a lower support column, and a lower pressure groove is provided at the center of the bottom of the inner sleeve, with the support column slidably and tightly fitted within the lower pressure groove.

[0010] The beneficial effects of this utility model are as follows: This utility model possesses both vertical and horizontal seismic isolation capabilities. During vertical vibration: In the micro-vibration stage, the three-layer steel ring-rubber isolation component and the three-layer ring spring deform, providing vertical stiffness and load-bearing capacity, resulting in seismic isolation and energy dissipation effects; during large-amplitude vibration, the relative displacement of the two components generates a frictional effect, consuming vertical vibration energy and reducing the impact of vertical earthquakes. After the vibration stops, it has good vertical self-resetting capability. During horizontal vibration, the friction between the slide rail and the slider dissipates energy, providing horizontal stiffness and achieving horizontal seismic isolation. Compared with common three-dimensional seismic isolation bearings, this bearing has a smaller overall height, is less prone to overturning, and can effectively cope with actual coupled vibration loads in different directions. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 for Figure 1 Front sectional view.

[0013] Figure 3 for Figure 1 Side sectional view.

[0014] Figure 4 This is a schematic diagram of a three-layer ring spring structure.

[0015] Figure 5 This is a schematic diagram of a three-layer steel ring-rubber seismic isolation component.

[0016] Figure 6 This is a schematic diagram of the seismic isolation device.

[0017] Figure 7 This is a schematic diagram of the upper and lower support plates.

[0018] In the picture:

[0019] 1. Vibration isolation device; 10. Sleeve; 101. Outer sleeve; 102. Inner sleeve; 1021. Lower pressure groove; 11. Three-layer steel ring-rubber vibration isolation component; 112. Outer steel ring; 113. Middle steel ring; 114. Inner steel ring; 115. Shear rubber layer; 12. Load-bearing pad; 13. Tension and compression shaft; 131. Pressure plate; 132. Support column; 14. Three-layer ring spring; 15. Connecting plate; 2. Upper support plate; 21. Upper sliding block; 3. Lower support plate; 31. Lower sliding block; 4. Arc-shaped slide rail; 41. Limiting baffle; 42. Limiting block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1 to 7The composite high-load-bearing three-dimensional vibration-controlled dual-control seismic isolation bearing shown includes an upper support plate 2, a seismic isolation device 1, and a lower support plate 3. The bottom surface of the upper support plate 2 is provided with a concave arc-shaped slide rail 4, within which an upper sliding block 21 is slidably connected. The lower support plate 3 is symmetrical to the upper support plate 2, and the two are arranged in a cross shape. The upper surface of the upper support plate 2 is a planar structure, and the lower surface is a support plate plus a concave arc surface. The upper surface of the lower support plate 3 is a concave arc surface, and the lower surface is a planar structure. A lower sliding block 31 is slidably disposed in the arc-shaped slide rail 4 of the lower support plate 3. The seismic isolation device 1 is located on the upper support plate 2. Between the lower support plate 3 and the vibration isolation device 1, the vibration isolation device 1 includes a sleeve 10, a tension / compression shaft 13, and a damping assembly located inside the sleeve. The damping assembly includes a three-layer steel ring-rubber vibration isolation component 11, a load-bearing pad 12, and a three-layer annular spring 14 arranged sequentially. The three-layer annular spring 14 includes an inner ring, a middle ring, and an outer ring. The inner ring, middle ring, and outer ring of the three-layer annular spring are staggered from the inside to the outside and have a first conical surface and a second conical surface that cooperate with each other. The first conical surface is provided on the inner ring and the outer ring, and the second conical surface is provided on the middle ring. The bottom of the three-layer annular spring 14 is also provided with a load-bearing pad 12. The three-layer steel ring... The rubber vibration isolation component 11 consists of an inner steel ring 114, a middle steel ring 113, an outer steel ring 112, and a shear rubber layer 115. The sleeve 10 consists of an outer sleeve 101 and an inner sleeve 102 that are fixedly connected. The tension / compression shaft 13 passes through the top of the outer sleeve 101 and extends down to contact the top of the three-layer steel ring-rubber vibration isolation component 11. The tension / compression shaft 13 is slidably connected to the outer sleeve 101. The top of the tension / compression shaft 13 is fixedly connected to the upper sliding block 21. The bottom of the inner sleeve 102 is fixedly connected to the lower sliding block 31. The tension / compression shaft 13 includes a top pressure plate 131 and a lower support. The support column 132 is composed of a top pressure plate 131 that is slidably fitted into the outer sleeve 101. The bottom surface of the top pressure plate 131 is in contact with the top of the three-layer steel ring-rubber vibration isolation component 11. The bottom center of the inner sleeve 102 is provided with a lower pressure groove 1021. The bottom of the support column 132 is slidably and tightly fitted in the lower pressure groove 1021. When the tension and compression shaft 13 is pressed down by the vertical force transmitted by the upper support plate 2, the support column 132 will move downward along the lower pressure groove 1021. Since the bottom of the support column 132 is slidably and tightly fitted in the lower pressure groove 1021, it can mutually restrict the lower sleeve 102 and has a certain horizontal displacement restriction effect.

[0022] In use, the upper and lower sides of the seismic isolation device 1 are connected to the upper sliding block 21 and the lower sliding block 31 respectively via screws and connecting plates 15. This ensures that the horizontal displacement of the entire seismic isolation device 1 occurs on the friction pendulum formed by the upper and lower support plates. Under horizontal seismic action, the upper support plate 2 will drive the upper sliding block 21 to slide within the slide rail 4, and the lower support plate 3 will drive the lower sliding block 31 to slide within the slide rail 4. Due to the presence of friction material on the contact surface, a friction effect will be generated, which can dissipate a certain amount of horizontal vibration energy, reduce the damage to buildings or other structures in the horizontal direction, and at the same time provide a certain degree of horizontal stiffness, producing a certain horizontal longitudinal and transverse seismic isolation effect. Under vertical seismic action, the lower support plate 3 drives the lower sliding block 31 to move, which causes relative displacement between the lower sliding block 31 and the upper sliding block 21. This causes the three-layer steel ring-rubber isolation component 11, the load-bearing pad 12, and the three-layer ring spring 14 in the seismic isolation device 1 to undergo elastic deformation, generating the required bearing capacity and providing a certain vertical stiffness, thereby generating a certain vertical seismic isolation capacity. Furthermore, the seismic isolation device 1 will generate a friction effect under its own relative displacement, which can consume the energy of vertical vibration and reduce the impact of vertical earthquakes on buildings. At the same time, after the earthquake stops, the seismic isolation device also has a good vertical self-resetting ability, and the seismic isolation device will gradually return to its initial position.

[0023] The middle steel ring 113 is movably and tangentially disposed between the inner steel ring 114 and the outer steel ring 112, and the shear rubber layer 115 is located on the tangential surface between the middle steel ring 113 and the inner steel ring 114 and the outer steel ring 112.

[0024] The cross-section of the middle steel ring 113 is an inverted isosceles trapezoid. The two inclined surfaces of the middle steel ring 113 are tangent to the outer side of the inner steel ring 114 and the inner side of the outer steel ring 112, respectively. Under vertical micro-vibration, a certain vibration isolation effect is ensured by the shear deformation of the shear rubber layer 115.

[0025] The sliding end of the arc-shaped slide 4 is provided with a limiting block 42, and the two sides of the arc-shaped slide 4 are provided with limiting baffles 41. The width and arc curvature of the arc-shaped slide 4 match the shape of the upper sliding block 21 and the lower sliding block 31 to form a slider-slide structure, so that the two sides of the two sliding blocks contact the limiting baffles 41 respectively, and at the same time, it can prevent the slider from sliding out of the slide during the up and down vibration, and has a certain tensile strength.

[0026] Friction material is provided on the arc-shaped contact surfaces of the upper sliding block 21 and the lower sliding block 31 with the arc-shaped slide rail 4. That is, the upper surface of the upper sliding block 21 is a convex arc surface that matches the arc-shaped slide rail, and the lower surface of the lower sliding block 31 is a concave arc surface. Friction material is provided on the convex arc surface and the concave arc surface.

[0027] The above embodiments are not intended to limit the present invention. Unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. The present invention is not limited to the examples above. Changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the technical solution of the present invention are also within the protection scope of the present invention. Furthermore, the technical features involved in the different embodiments of the present application described above can be combined with each other as long as they do not conflict with each other.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A composite high-load-bearing three-dimensional vibration-controlled dual-control seismic isolation bearing, characterized in that, The system includes an upper support plate, a vibration isolation device, and a lower support plate. The bottom surface of the upper support plate has a concave arc-shaped slide rail, within which an upper sliding block is slidably connected. The lower support plate is symmetrically arranged with the upper support plate in a cross-shaped configuration. A lower sliding block is slidably disposed within the arc-shaped slide rail of the lower support plate. The vibration isolation device is located between the upper and lower support plates and includes a sleeve, a tension / compression shaft, and a damping assembly located within the sleeve. The damping assembly comprises three components arranged sequentially in a vertical fashion. The system comprises a three-layer steel ring-rubber vibration isolation component, a load-bearing pad, and a three-layer annular spring. The three-layer steel ring-rubber vibration isolation component consists of an inner steel ring, a middle steel ring, an outer steel ring, and a shear rubber layer. The sleeve consists of an outer sleeve and an inner sleeve that are fixedly connected. The tension and compression shaft passes through the top of the outer sleeve and extends downwards to contact the top of the three-layer steel ring-rubber vibration isolation component. The tension and compression shaft is slidably connected to the outer sleeve. The top of the tension and compression shaft is fixedly connected to an upper sliding block, and the bottom of the inner sleeve is fixedly connected to a lower sliding block.

2. The composite high-load-bearing three-dimensional vibration-controlled seismic isolation bearing according to claim 1, characterized in that, The middle steel ring is tangentially disposed between the inner and outer steel rings, and the shear rubber layer is located on the tangential surface between the middle steel ring and the inner and outer steel rings.

3. The composite high-load-bearing three-dimensional vibration-controlled seismic isolation bearing according to claim 2, characterized in that, The cross-section of the middle steel ring is an inverted isosceles trapezoid, and the two inclined surfaces of the middle steel ring are tangent to the outer side of the inner steel ring and the inner side of the outer steel ring, respectively.

4. The composite high-load-bearing three-dimensional vibration-controlled seismic isolation bearing according to claim 1, characterized in that, The sliding end of the arc-shaped slide is provided with a limiting block, and the two sides of the arc-shaped slide are provided with limiting baffles.

5. The composite high-load-bearing three-dimensional vibration-controlled seismic isolation bearing according to claim 1, characterized in that, Friction material is provided on the arc-shaped contact surface between the upper sliding block, the lower sliding block and the arc-shaped slide rail.

6. The composite high-load-bearing three-dimensional vibration-controlled seismic isolation bearing according to claim 1, characterized in that, The tension / compression shaft consists of a top pressure plate and a lower support column. The inner sleeve has a lower pressure groove at the bottom center, and the support column is slidably and tightly fitted in the lower pressure groove.

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