Shock insulation support with self-resetting function

Abstract

The utility model discloses a shock insulation support with a self-resetting function, which relates to the technical field of constructional engineering and comprises an anti-falling beam, a mounting plate and a shock insulation mechanism. The mounting plate is fixedly arranged at the top of the anti-falling beam, a connecting component is fixedly arranged at the top of the mounting plate, and a shock isolation mechanism for counteracting transverse displacement is arranged in the anti-falling beam. The anti-falling beam is driven to swing through displacement of the upper structure of the building, the supporting base swings on the friction face along with the anti-falling beam to consume energy, the damper additionally consumes energy through an internal mechanism, the anti-falling beam and the damper jointly provide buffering protection for the building, safety and stability of the building in an earthquake are enhanced, structural damage and casualty risks are reduced, and safety of the building is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically a seismic isolation bearing with self-resetting function. Background Technology

[0002] In the field of construction engineering, earthquakes have always been a major threat to building safety and the lives and property of people. Seismic isolation bearings, as key components for improving the seismic performance of buildings, directly affect the building's safety during earthquakes. If seismic isolation bearings fail to self-reset promptly after an earthquake, residual deformation will occur in the building, altering the original mechanical equilibrium of the structure. Over time, abnormal stress distribution within the structure will occur, causing critical parts such as beam-column joints to bear additional stress. In subsequent earthquakes or other external forces, these weak points are more susceptible to damage, potentially leading to partial or even complete collapse of the building, posing a significant threat to human life.

[0003] Based on this, a seismic isolation bearing with self-resetting function is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0004] The purpose of this invention is to provide a seismic isolation bearing with self-resetting function to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A seismic isolation bearing with self-resetting function includes: an anti-fall beam and a mounting plate, the mounting plate being fixedly disposed on the top of the anti-fall beam, a connecting member being fixedly disposed on the top of the mounting plate, and a seismic isolation mechanism for offsetting lateral displacement being disposed inside the anti-fall beam.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0008] In one alternative: the seismic isolation mechanism includes an arc-shaped seat located inside the anti-fall beam, the top of the arc-shaped seat having a friction surface, a support seat slidably located outside the friction surface, and the top of the support seat being fixedly connected to the anti-fall beam.

[0009] In one alternative: the bottom of the arc-shaped seat is fixedly provided with a support unit for supporting the seismic isolation bearing.

[0010] In one alternative embodiment: the support unit includes a sliding seat fixedly disposed at the bottom of the arc-shaped seat, the bottom of the arc-shaped seat is provided with a base, the inner wall of the base is slidably connected to the sliding seat, a disc spring is fixedly connected to the bottom of the sliding seat, and the other end of the disc spring is fixedly connected to the base.

[0011] In one alternative: both sides of the base are fixed with damping units to reduce seismic forces.

[0012] In one alternative: the damping unit includes a rotating shaft fixed on both sides of the base, and a damper is rotatably mounted at the axis of the rotating shaft. The damper is rotatably connected to the inner wall of the anti-fall beam through the rotating shaft.

[0013] In one alternative: the arc-shaped base and the support base are made of low-alloy high-strength structural steel.

[0014] In one alternative: the inner wall of the base is provided with a sliding groove that is adapted to the sliding seat.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model uses the displacement of the upper structure of the building to drive the anti-fall beam to swing, and the support base swings and dissipates energy on the friction surface accordingly. The damper uses its internal mechanism to dissipate additional energy. Together, they provide buffer protection for the building, enhance the building's safety and stability during earthquakes, reduce the risk of structural damage and casualties, and ensure building safety.

[0017] 2. This utility model utilizes a sliding seat that slides on the inner wall of the base and compresses a disc spring. The disc spring, due to its structural characteristics, bears the vertical load and stores elastic potential energy. When the external force changes or disappears, the disc spring elastically recovers and generates an upward elastic force, driving the sliding seat to move vertically along the inner wall of the base, returning it to its initial position and completing the vertical reset. This reduces structural displacement deviations caused by external forces, improving the durability and safety of the building. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the seismic isolation mechanism in this utility model.

[0020] Figure 3 This is a schematic diagram of the support unit in this utility model.

[0021] Figure 4 This is a schematic diagram of the damper structure in this utility model.

[0022] Figure label annotations: 1. Anti-fall beam; 2. Mounting plate; 3. Connecting component; 4. Arc-shaped seat; 5. Friction surface; 6. Support seat; 7. Sliding seat; 8. Base; 9. Disc spring; 10. Rotating shaft; 11. Damper. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] In one embodiment, such as Figures 1-4 As shown, a seismic isolation bearing with self-resetting function includes: an anti-fall beam 1, a mounting plate 2, and a seismic isolation mechanism; the mounting plate 2 is fixedly installed on the top of the anti-fall beam 1, and a connecting member 3 is fixedly installed on the top of the mounting plate 2; the anti-fall beam 1 is provided with a seismic isolation mechanism to counteract lateral displacement.

[0025] By setting the connecting component 3 on the mounting plate 2, the self-weight of the superstructure and various vertical loads generated during use, such as the floor load and roof load of the building, can be reliably transferred to the seismic isolation bearing, and then transferred to the foundation by the seismic isolation bearing.

[0026] In one embodiment, such as Figure 2 As shown, the seismic isolation mechanism includes an arc-shaped seat 4 located inside the anti-fall beam 1. The top of the arc-shaped seat 4 is provided with a friction surface 5, and a support seat 6 is slidably provided on the outside of the friction surface 5. The top of the support seat 6 is fixedly connected to the anti-fall beam 1, and a support unit for supporting the seismic isolation support is fixedly provided at the bottom of the arc-shaped seat 4. The arc-shaped seat 4 and the support seat 6 are made of low-alloy high-strength structural steel.

[0027] When an earthquake occurs, the superstructure causes the anti-fall beam 1 to swing, which in turn causes the support seat 6 to swing on the friction surface 5 set on the top of the arc-shaped seat 4. During the swinging process, the friction force does work, converting some of the seismic energy into heat energy and dissipating it, thereby reducing the seismic energy transmitted to the structure and weakening the structure's vibration response. At the same time, since the pendulum body has a tendency to return to its initial equilibrium position under the action of gravity, it achieves a self-resetting effect. Considering that the building structure may face multiple earthquakes during its service life, this utility model fully considers the long-term performance of the materials in its design. The arc-shaped seat 4 and the support seat 6 are made of low-alloy high-strength structural steel. This type of steel not only has high strength and good processing performance, but also has certain fatigue resistance characteristics. To ensure the reliability of the seismic isolation bearing during long-term use, it needs to be inspected regularly.

[0028] In one embodiment, such as Figure 2 and Figure 3 As shown, the support unit includes a sliding seat 7 fixedly mounted on the bottom of the arc-shaped seat 4. The bottom of the arc-shaped seat 4 is provided with a base 8. The inner wall of the base 8 is slidably connected to the sliding seat 7. A disc spring 9 is fixedly connected to the bottom of the sliding seat 7. The other end of the disc spring 9 is fixedly connected to the base 8. Both sides of the base 8 are fixedly provided with damping units for reducing seismic forces. The inner wall of the base 8 is provided with a sliding groove that matches the sliding seat 7.

[0029] The vertical pressure generated by the earthquake causes the sliding seat 7 to slide against the inner wall of the base 8, compressing the disc spring 9. The disc spring 9 has high stiffness and load-bearing capacity, effectively bearing the vertical load transmitted from the superstructure of the seismic isolation support, and evenly transferring the weight of the building and other structures to the foundation. After the earthquake subsides, the disc spring 9, through its elastic deformation, causes the sliding seat 7 to return to its original position. Although the horizontal and vertical movements are interconnected throughout the earthquake, the special structural design between the arc-shaped seat 4 and the support seat 6, as well as the sliding connection between the sliding seat 7 and the base 8, allow them to function relatively independently in their respective directions.

[0030] In one embodiment, such as Figure 4 As shown, the damping unit includes a rotating shaft 10 fixed on both sides of the base 8, and a damper 11 is rotatably provided at the axis of the rotating shaft 10. The damper 11 is rotatably connected to the inner wall of the anti-fall beam 1 through the rotating shaft 10.

[0031] When the support 6 swings, the damper 11, through the rotating shaft 10, uses its own friction and viscosity to dissipate the energy input to the structure by converting it into heat and other forms of energy, thereby reducing the energy absorbed by the structure and further assisting the seismic isolation mechanism in its work.

[0032] The above embodiment discloses a seismic isolation bearing with a self-resetting function. When an earthquake occurs, the superstructure of the building displaces, causing the anti-fall beam 1 to swing. During this process, the support seat 6 swings on the friction surface 5 at the top of the arc-shaped seat 4. Due to the friction on the friction surface 5, the friction does work when the support seat 6 swings, dissipating some of the earthquake energy as heat, thus effectively reducing the seismic energy transmitted to the building structure and mitigating the impact of the earthquake. After the earthquake weakens, the support seat 6, due to its own gravity, will return to its initial position along the slope of the arc-shaped seat 4, completing the reset action. Furthermore, the damper 11 in the system, during the swing of the anti-fall beam 1, utilizes its internal damping mechanisms, such as viscous damping and frictional damping, to further dissipate the seismic energy. The damper 11, together with the support seat 6 and the arc-shaped seat 4, forms the seismic isolation mechanism, providing additional buffering for the building structure and improving overall seismic performance. The sliding seat 7 slides along the inner wall of the base 8. During this sliding process, the sliding seat 7 exerts a compressive force on the disc spring 9 installed inside the base 8. The disc spring 9 has good elastic properties and can withstand the vertical load applied by the upper structure when compressed. As the external force changes or disappears, the disc spring 9, due to the stored elastic potential energy, undergoes elastic deformation and returns to its initial state. During this elastic recovery process, the disc spring 9 generates an upward elastic force, driving the connected sliding seat 7 to move vertically along the inner wall of the base 8, eventually returning to its initial position, completing the vertical reset action.

[0033] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A seismic isolation bearing having a self-resetting function, comprising: The application discloses a fall prevention beam (1) and a mounting plate (2) fixedly arranged at the top of the fall prevention beam (1), characterized in that a connecting member (3) is fixedly arranged at the top of the mounting plate (2), and a shock absorption mechanism for offsetting lateral displacement is arranged in the fall prevention beam (1). The shock absorption mechanism comprises an arc-shaped seat (4) arranged in the fall prevention beam (1), a friction surface (5) arranged at the top of the arc-shaped seat (4), and a supporting seat (6) slidingly arranged at the outer portion of the friction surface (5), wherein the top of the supporting seat (6) is fixedly connected with the fall prevention beam (1). The bottom of the arc-shaped seat (4) is fixedly provided with a supporting unit for supporting the shock absorption support. The supporting unit comprises a sliding seat (7) fixedly arranged at the bottom of the arc-shaped seat (4), a base (8) arranged at the bottom of the arc-shaped seat (4), a sliding connection between the inner wall of the base (8) and the sliding seat (7), a disc spring (9) fixedly connected with the bottom of the sliding seat (7), and another end of the disc spring (9) fixedly connected with the base (8). Both sides of the base (8) are fixedly provided with a damping unit for reducing seismic force. The damping unit comprises a rotating shaft (10) fixedly arranged at both sides of the base (8), a damper (11) rotatably arranged at the axis of the rotating shaft (10), and a rotating connection between the damper (11) and the inner wall of the fall prevention beam (1) through the rotating shaft (10).

2. The seismic isolation bearing with self-resetting function according to claim 1, characterized in that, The materials of the arc-shaped seat (4) and the supporting seat (6) are low-alloy high-strength structural steel.

3. The seismic isolation bearing with self-resetting function according to claim 1, characterized in that, The inner wall of the base (8) is provided with a sliding groove matched with the sliding seat (7).

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