Damping support with anti-overturning structure
By designing shock absorbing support with anti-capsulse structures in the underground subway station structure, including horizontal and vertical shock absorbing mechanisms, the problem of loss of shear resistance in the subway station structure during strong earthquakes is solved, and higher shear resistance and shock absorption performance are achieved.
Patent Information
- Application Number
- CN202421199794.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-29
AI Technical Summary
In the case of strong direct earthquakes, the existing underground subway station structure is prone to loss of shear resistance due to vertical seismic force, which in turn causes the shear failure of the central column, resulting in the failure of the overall structure.
A shock absorbing support with an anti-capsulse structure is designed, including hollow columns and tilted support seats, and a horizontal shock absorbing mechanism and a vertical shock absorbing mechanism are provided. The horizontal shock absorbing mechanism avoids the misalignment of heavy objects through limiting components and fixed components, and the vertical shock absorbing mechanism uses annular springs and connecting rings to absorb shock.
By setting up a horizontal shock absorbing mechanism, the misalignment of heavy objects can be minimized and the shear resistance can be improved. Through the vertical shock absorbing mechanism, the pressure under the structure can be effectively reduced during earthquakes and the shock absorption performance of the overall device can be improved.
Smart Images
Figure CN222595215U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of seismic reduction of building engineering structures, and particularly relates to a seismic isolation bearing with an anti-overturning structure. Background Technique
[0002] In recent years, the urbanization process in China has accelerated. The underground urban rail transit has played an increasingly important role in expanding urban space, building a three-dimensional urban transportation network, and promoting the healthy development of urban transportation with its advantages of safety, punctuality, and high efficiency. However, China is a country with frequent earthquakes. Due to the large-scale development of underground space, the underground soil layer is continuously disturbed. Existing earthquake damages show that there are still some hidden dangers in the existing underground subway station structures during strong earthquakes. When a big city suffers from a strong direct earthquake, for the underground station structures constructed by the open cut method with a shallow buried depth, and some tunnel sections with poor soil quality, the overlying soil of the structure is likely to lose its shear resistance under the action of vertical seismic forces, resulting in a sudden increase in the vertical pressure on the structure. Then, under the combined action of horizontal seismic forces and vertical seismic forces, the middle columns of the underground subway station structure will undergo compression-shear failure under a high axial compression ratio, leading to the overall failure of the structure.
[0003] Due to the large-scale development of underground space, the underground soil layer is continuously disturbed. Existing earthquake damages show that there are still some hidden dangers in the existing underground subway station structures during strong earthquakes. When a big city suffers from a strong direct earthquake, for some tunnel sections with poor soil quality, the overlying soil of the structure is likely to lose its shear resistance under the action of vertical seismic forces, resulting in a sudden increase in the vertical pressure on the structure. Then, under the combined action of horizontal seismic forces and vertical seismic forces, the middle columns of the underground subway station structure will undergo compression-shear failure under a high axial compression ratio, leading to the overall failure of the structure. Content of the Utility Model
[0004] The purpose of the utility model is to provide a seismic isolation bearing with an anti-overturning structure. By setting a horizontal seismic reduction mechanism, the dislocation generated when heavy objects shake can be avoided to the greatest extent, and the shear resistance of the overall device in the horizontal direction can be improved, so as to protect the top structure during an earthquake, and solve the problem that when a big city suffers from a strong direct earthquake, for some tunnel sections with poor soil quality, the middle columns of the subway station structure undergo compression-shear failure under a high axial compression ratio, leading to the overall failure of the structure.
[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:
[0006] The utility model is a seismic isolation bearing with an anti-overturning structure, including a hollow column and a U-shaped support seat. A horizontal seismic reduction mechanism and a vertical seismic reduction mechanism are arranged on the hollow column. The horizontal seismic reduction mechanism includes a limiting component and a fixing component;
[0007] The limiting component includes inclined surfaces both provided on the inner walls of the two U-shaped support seats. The inclination angles of the two inclined surfaces are opposite. Convex chutes are provided on both of the two inclined surfaces. The inner walls of the two convex chutes are both slidably connected with convex sliders. The top surfaces of the two convex sliders are both fixedly connected with connecting plates, and the top surfaces of the two connecting plates are both fixedly connected with fixing plates.
[0008] Further, the fixing component includes a carrier plate arranged above the two fixing plates. A number of first bolts are threadedly connected between the two fixing plates and the carrier plate.
[0009] Further, the vertical shock-absorbing mechanism includes a shock-absorbing component, a connecting component and a supporting component. The shock-absorbing component includes a backing plate fixedly connected to the bottom end of the hollow column. A ring spring is fixedly connected to the top surface of the backing plate, and the ring spring is located inside the hollow column.
[0010] Further, the ring spring is composed of a number of inner conical connecting rings, outer conical connecting rings and graphite grease. The top surface of the backing plate is fixedly connected with an inner conical connecting ring. The inner wall of the inner conical connecting ring is slidably connected with a corresponding outer conical connecting ring. A number of the inner conical connecting rings and a number of the outer conical connecting rings are alternately stacked. A gap is provided between a number of the inner conical connecting rings and the inner wall of the hollow column, and the gap distance is 1 / 50 of the inner diameter of the inner conical connecting ring.
[0011] Further, the contact surface between the inner conical connecting ring and the outer conical connecting ring is coated with graphite grease.
[0012] Further, a number of the inner conical connecting rings and a number of the outer conical connecting rings are both made of spring steel.
[0013] Further, the connecting component includes a limiting plate fixedly connected to the top end of the hollow column. A pressing plate is slidably connected to the inner wall of the ring spring. The bottom surface of the pressing plate is fixedly connected with the top surface of the corresponding inner conical connecting ring. A number of support plates penetrate through the limiting plate, and the limiting plate is slidably connected with the support plates. The bottom surfaces of a number of the support plates and the top surface of the pressing plate are both fixedly connected. The top surfaces of a number of the support plates and the bottom surface of the U-shaped support seat are both fixedly connected. The height of the support plate is the same as the ultimate deformation amount of the ring spring.
[0014] Further, a number of rib plates are fixedly connected between the top surface of the backing plate and the outer wall of the ring spring. A number of second bolts are rotatably connected to the backing plate.
[0015] The utility model has the following beneficial effects:
[0016] By setting up a horizontal shock-absorbing mechanism, two U-shaped support seats and two hollow columns must be used in pairs, and the distance between the two hollow columns should not be too large. The convex chute and the convex slider cooperate with each other, so that the two convex sliders can only slide in the two convex chutes, ensuring the stability of the convex slider during sliding. The top surfaces of the two convex sliders are fixed with a fixed plate through a connecting plate. Under normal use conditions, the carrier plate can be fixed to the two fixed plates through the first bolt. When a heavy object is fixed on the carrier plate, the inclination angles of the two inclined surfaces are opposite, which can maximize the avoidance of misalignment caused by the shaking of the heavy object and improve the shear resistance of the overall device in the horizontal direction, so as to protect the top structure during an earthquake.
[0017] 2. By setting up a vertical shock-absorbing mechanism, during an earthquake, the vertical seismic action is a fundamental cause of the damage to the underground subway station structure, which will cause the carrier plate to bear a large pressure. At this time, the pressure plate moves downward, and multiple inner conical connecting rings and outer conical connecting rings deform simultaneously. With the lubricating effect of graphite grease, the outer conical connecting ring will slide into the interior of the outer conical connecting ring through the inner wall of the inner conical connecting ring. After the earthquake, the annular spring will quickly return to its original state and can be used again, further improving the shock-absorbing performance of the overall device.
[0018] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model;
[0021] Figure 2 It is a schematic diagram of the structure of the U-shaped support seat of the present utility model;
[0022] Figure 3 It is a front view sectional structure schematic diagram of the hollow column of the present utility model;
[0023] Figure 4 It is a schematic diagram of the structure of the convex slider of the present utility model;
[0024] Figure 5 It is a schematic diagram of the structure of the annular spring of the present utility model.
[0025] In the drawings, the list of components represented by each reference numeral is as follows:
[0026] Hollow column; 2. Horizontal shock absorption mechanism; 3. Vertical shock absorption mechanism; 4. Carrier plate; 21. C-shaped support base; 22. Inclined surface; 23. Convex chute; 24. Convex slider; 25. Connecting plate; 26. Fixed plate; 27. First bolt; 31. Annular spring; 32. Pressure plate; 33. Limiting plate; 34. Support plate; 35. Cushion plate; 36. Rib plate; 37. Second bolt; 311. Inner conical connection ring; 312. Outer conical connection ring; 313. Graphite grease. Detailed implementation manners
[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0028] Please refer to Figure 1-5 As shown in the figure, the present invention is a shock absorber with an anti-overturning structure, including a hollow column 1 and a C-shaped support base 21. A horizontal shock absorption mechanism 2 and a vertical shock absorption mechanism 3 are arranged on the hollow column 1. The horizontal shock absorption mechanism 2 includes a limiting component and a fixing component;
[0029] The limiting component includes inclined surfaces 22 respectively opened on the inner walls of the two C-shaped support bases 21. The inclination angles of the two inclined surfaces 22 are opposite. Convex chutes 23 are opened on both of the two inclined surfaces 22. Convex sliders 24 are slidably connected to the inner walls of the two convex chutes 23. Connecting plates 25 are fixedly connected to the top surfaces of the two convex sliders 24. Fixed plates 26 are fixedly connected to the top surfaces of the two connecting plates 25. The fixing component includes a carrier plate 4 arranged above the two fixed plates 26. A number of first bolts 27 are threadedly connected between the two fixed plates 26 and the carrier plate 4. By providing the horizontal shock absorption mechanism 2, the dislocation generated when the heavy object shakes can be maximally avoided, and the shear resistance of the overall device in the horizontal direction can be improved, so that the structure at the top can be protected during an earthquake.
[0030] The vertical shock-absorbing mechanism 3 includes a shock-absorbing component, a connecting component, and a supporting component. The shock-absorbing component includes a backing plate 35 fixedly connected to the bottom end of the hollow column 1. The top surface of the backing plate 35 is fixedly connected with an annular spring 31. The annular spring 31 is located inside the hollow column 1. The annular spring 31 is composed of a number of inner conical connecting rings 311, outer conical connecting rings 312, and graphite grease 313. The top surface of the backing plate 35 is fixedly connected with an inner conical connecting ring 311. The inner wall of the inner conical connecting ring 311 is slidably connected with a corresponding outer conical connecting ring 312. A number of inner conical connecting rings 311 and a number of outer conical connecting rings 312 are alternately stacked. There is a gap between a number of inner conical connecting rings 311 and the inner wall of the hollow column 1. The gap distance is 1 / 50 of the inner diameter of the inner conical connecting ring 311. The contact surface between the inner conical connecting ring 311 and the outer conical connecting ring 312 is coated with graphite grease 313. A number of inner conical connecting rings 311 and a number of outer conical connecting rings 312 are both made of spring steel. The connecting component includes a limiting plate 33 fixedly connected to the top end of the hollow column 1. The inner wall of the annular spring 31 is slidably connected with a pressing plate 32. The bottom surface of the pressing plate 32 is fixedly connected with the top surface of the corresponding inner conical connecting ring 311. A number of support plates 34 penetrate through the limiting plate 33. The limiting plate 33 is slidably connected with the support plates 34. The bottom surfaces of a number of support plates 34 and the top surface of the pressing plate 32 are both fixedly connected. The top surfaces of a number of support plates 34 and the bottom surface of the C-shaped support seat 21 are both fixedly connected. The height of the support plate 34 is the same as the ultimate deformation amount of the annular spring 31. A number of rib plates 36 are fixedly connected between the top surface of the backing plate 35 and the outer wall of the annular spring 31. A number of second bolts 37 are rotatably connected to the backing plate 35. By providing the vertical shock-absorbing mechanism 3, after an earthquake, the annular spring 31 will quickly return to its original state and can be used again, further improving the shock-absorbing performance of the overall device.
[0031] A specific application of this embodiment is as follows: By providing the horizontal shock-absorbing mechanism 2, two C-shaped support seats 21 and two hollow columns 1 must be used in pairs, and the distance between the two hollow columns 1 should not be too large. The convex chute 23 and the convex slider 24 cooperate with each other, so that the two convex sliders 24 can only slide in the two convex chutes 23, ensuring the stability of the convex slider 24 during sliding. The top surfaces of the two convex sliders 24 are fixedly connected with a fixing plate 26 through a connecting plate 25. Under normal use conditions, the carrier plate 4 can be fixed to the two fixing plates 26 through the first bolt 27. When there is a heavy object fixed on the carrier plate 4, the inclination angles of the two inclined surfaces 22 are opposite, which can maximize the avoidance of misalignment caused by the heavy object during shaking and improve the shear resistance of the overall device in the horizontal direction, thereby protecting the top structure during an earthquake.
[0032] By providing a vertical shock-absorbing mechanism 3, the limiting plate 33 and the supporting plate 34 cooperate with each other to enable the U-shaped support seat 21 to only move up and down. Thus, when the U-shaped support seat 21 bears a large pressure, it will press the pressing plate 32 to move downward. During an earthquake, the vertical seismic action is a fundamental cause of the damage to the underground subway station structure, which will cause the load plate 4 to bear an increased pressure. At this time, the pressing plate 32 moves downward, and multiple inner conical connecting rings 311 and outer conical connecting rings 312 deform simultaneously. With the lubricating effect of the graphite grease 313, the outer conical connecting ring 312 will slide into the interior of the outer conical connecting ring 312 through the inner wall of the inner conical connecting ring 311. Under normal use conditions, the reserved gap between the inner and outer rings should be sufficient to resist the vertical action of the designed earthquake intensity. In the ultimate bearing capacity state, that is, when the seismic action received by the structure reaches the maximum state that the overall device can resist, the inner conical connecting ring 311 and the outer conical connecting ring 312 in the vertical shock-absorbing unit slide relative to each other, and the relative sliding between the limiting plate 33 and the supporting plate 34 in the vertical shock-absorbing mechanism 3 reaches the maximum. The pressing plate 32 is restricted by the limiting plate 33 and cannot perform one-way horizontal movement anymore. After the earthquake, the annular spring 31 will quickly return to its original state and can be used again, further improving the shock-absorbing performance of the overall device. Moreover, the rib plate 36 and the backing plate 35 cooperate with each other to increase the supporting effect at the bottom.
[0033] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0034] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not elaborate all the details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.
Claims
1. A shock absorber bearing with an anti-overturning structure, comprising a hollow column (1) and a U-shaped support base (21), characterized in that: A horizontal shock absorption mechanism (2) and a vertical shock absorption mechanism (3) are arranged on the hollow column (1), and the horizontal shock absorption mechanism (2) includes a limit component and a fixing component; The limit component includes inclined surfaces (22) respectively formed on the inner walls of two U-shaped support seats (21). The inclination angles of the two inclined surfaces (22) are opposite. Convex chutes (23) are formed on the two inclined surfaces (22). Convex sliders (24) are slidably connected to the inner walls of the two convex chutes (23). Connecting plates (25) are fixedly connected to the top surfaces of the two convex sliders (24). Fixing plates (26) are fixedly connected to the top surfaces of the two connecting plates (25).
2. The shock-absorbing support with an anti-overturning structure according to claim 1, characterized in that: The fixing component includes a carrier plate (4) arranged above the two fixing plates (26). A number of first bolts (27) are threadedly connected between the two fixing plates (26) and the carrier plate (4).
3. The shock-absorbing support with an anti-overturning structure according to claim 1, characterized in that: The vertical shock absorption mechanism (3) includes a shock absorption component, a connection component and a support component. The shock absorption component includes a base plate (35) fixedly connected to the bottom end of the hollow column (1). An annular spring (31) is fixedly connected to the top surface of the base plate (35). The annular spring (31) is located inside the hollow column (1).
4. The shock-absorbing support with an anti-overturning structure according to claim 3, characterized in that: The annular spring (31) is composed of a number of inner conical connection rings (311), outer conical connection rings (312) and graphite grease (313). The inner conical connection ring (311) is fixedly connected to the top surface of the base plate (35). The corresponding outer conical connection ring (312) is slidably connected to the inner wall of the inner conical connection ring (311). A number of the inner conical connection rings (311) and a number of the outer conical connection rings (312) are alternately stacked. A gap is provided between a number of the inner conical connection rings (311) and the inner wall of the hollow column (1), and the gap distance is 1 / 50 of the inner diameter of the inner conical connection ring (311).
5. The shock-absorbing support with an anti-overturning structure according to claim 4, characterized in that: Graphite grease (313) is coated on the contact surfaces of the inner conical connection ring (311) and the outer conical connection ring (312).
6. The shock-absorbing support with an anti-overturning structure according to claim 4, characterized in that: A number of the inner conical connection rings (311) and a number of the outer conical connection rings (312) are all made of spring steel.
7. The shock-absorbing support with an anti-overturning structure according to claim 4, characterized in that: The connection component includes a limit plate (33) fixedly connected to the top end of the hollow column (1). A pressure plate (32) is slidably connected to the inner wall of the annular spring (31). The bottom surface of the pressure plate (32) is fixedly connected to the top surface of the corresponding inner conical connection ring (311). A number of support plates (34) penetrate through the limit plate (33). The limit plate (33) is slidably connected to the support plates (34). The bottom surfaces of the number of support plates (34) and the top surface of the pressure plate (32) are fixedly connected. The top surfaces of the number of support plates (34) and the bottom surface of the U-shaped support seat (21) are fixedly connected. The height of the support plate (34) is the same as the ultimate deformation amount of the annular spring (31).
8. The shock-absorbing support with an anti-overturning structure according to claim 3, characterized in that: A number of rib plates (36) are fixedly connected between the top surface of the base plate (35) and the outer wall of the annular spring (31). A number of second bolts (37) are rotatably connected to the base plate (35).