Impact-resistant friction pendulum seismic isolation bearing

Abstract

The application discloses an anti-impact friction pendulum seismic isolation support, which comprises an upper support plate and a lower support plate, the opposite surfaces of the upper support plate and the lower support plate are curved surfaces, an upper metal sliding surface plate is arranged on the curved surface of the upper support plate, and a lower metal sliding surface plate is arranged on the curved surface of the lower support plate, an upper spherical cap lining plate and a lower spherical cap lining plate are arranged between the upper support plate and the lower support plate, an upper nonmetal sliding surface plate is arranged on the upper surface of the upper spherical cap lining plate, the upper nonmetal sliding surface plate is in contact with the upper metal sliding surface plate, a lower nonmetal sliding surface plate is arranged on the bottom surface of the lower spherical cap lining plate, the lower nonmetal sliding surface plate is in contact with the lower metal sliding surface plate, and an elastic component is arranged between the upper spherical cap lining plate and the lower spherical cap lining plate. The anti-impact friction pendulum seismic isolation support can play a better anti-impact role in the process of seismic isolation, and the service life is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of isolation bearings, in particular to an anti-impact friction pendulum isolation bearing. BACKGROUND

[0002] The friction pendulum isolation bearing is used for realizing isolation by prolonging the self-vibration period of a structure, and has the comprehensive performances of self-resetting power, excellent isolation and efficient mechanism, and in recent years, the application amount of the friction pendulum isolation bearing has increased the fastest.

[0003] However, when a building or a bridge suffers from a rare earthquake, the friction pendulum isolation bearing will also generate vertical movement while horizontally moving, and even the friction pair will be separated. When the bearing plate falls back, the bearing plate will hit the friction material on the spherical crown lining plate, and the friction pair will be rapidly damaged, thereby affecting the service life of the bearing. Therefore, it is necessary to design a vertical anti-impact structure, and furthermore, the anti-cushion structure can reduce the influence of the vertical vibration on the building structure to a certain extent. Therefore, the application provides an anti-impact friction pendulum isolation bearing which can play a good anti-impact role in the isolation process. SUMMARY

[0004] The application aims to provide an anti-impact friction pendulum isolation bearing which can play a good anti-impact role in the isolation process and improve the service life.

[0005] To solve the above technical problems, the application adopts the following technical scheme:

[0006] The anti-impact friction pendulum isolation bearing comprises an upper bearing plate and a lower bearing plate, the opposite surfaces of the upper bearing plate and the lower bearing plate are curved surfaces, an upper metal sliding surface plate is arranged on the curved surface of the upper bearing plate, a lower metal sliding surface plate is arranged on the curved surface of the lower bearing plate, an upper spherical crown lining plate and a lower spherical crown lining plate are arranged between the upper bearing plate and the lower bearing plate, an upper nonmetallic sliding surface plate is arranged on the upper surface of the upper spherical crown lining plate, the upper nonmetallic sliding surface plate is in contact with the upper metal sliding surface plate, a lower nonmetallic sliding surface plate is arranged on the bottom surface of the lower spherical crown lining plate, the lower nonmetallic sliding surface plate is in contact with the lower metal sliding surface plate, and an elastic component is arranged between the upper spherical crown lining plate and the lower spherical crown lining plate.

[0007] Further, the upper spherical crown lining plate is provided with a plurality of grooves, and a guide rod is arranged in each groove, the lower end of the guide rod penetrates through the elastic component and is threadedly connected with the lower spherical crown lining plate.

[0008] Further, the guide rods are arranged along the center line of the upper spherical crown lining plate or are arranged on both sides of the center line, the guide rods are wrapped with friction bushings, and the inner surfaces of the friction bushings are made of low-friction materials.

[0009] Further, the upper spherical crown lining plate is provided with an upper groove, and the elastic component is arranged in the upper groove.

[0010] Further, the lower spherical crown lining plate is provided with a plurality of lower grooves, and the bottom of the lower groove is provided with a groove convex, and the lower groove is provided with an annular spring assembly, the lower end of the annular spring assembly is embedded in the groove convex, and the upper end of the annular spring assembly is connected with an annular spring push rod, the upper end of the annular spring push rod passes through the elastic component and is screwed with the upper spherical crown lining plate, and the lower groove of the lower spherical crown lining plate is provided with a tensile bushing.

[0011] Further, the surface of the elastic component is arranged with a plurality of convex points.

[0012] Compared with the prior art, the present application has the following beneficial effects:

[0013] The present application is provided with the upper spherical crown lining plate and the lower spherical crown lining plate which are separated from each other between the upper support plate and the lower support plate, when the building structure is under the action of the earthquake force, the upper support plate is lifted, and the upper surface pressure of the upper spherical crown lining plate is 0. When the building structure falls, the spherical crown lining plate in the existing friction pendulum seismic isolation bearing is a rigid body, and the buffer stroke is 0, so the mirror plate of the existing friction pendulum is easily damaged by the impact of the rigid spherical crown lining plate. In the present application, the elastic component is arranged in the spherical crown lining plate, which can play a buffering role, increase the stroke of the building structure gravity, and reduce the impact force of the spherical crown lining plate on the mirror plate. In addition, the present application is also provided with the guide rod, the friction bushing, the convex, the upper groove and the spring push rod and other components, which limit the upper spherical crown lining plate and the lower spherical crown lining plate to only do vertical movement, and prevent the separation due to the horizontal force. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a first embodiment schematic diagram of the anti-impact friction pendulum seismic isolation bearing.

[0015] Figure 2 It is a second embodiment schematic diagram of the anti-impact friction pendulum seismic isolation bearing.

[0016] Figure 3 It is a third embodiment schematic diagram of the anti-impact friction pendulum seismic isolation bearing.

[0017] Figure 4 It is a fourth embodiment schematic diagram of the anti-impact friction pendulum seismic isolation bearing.

[0018] Figure 5 It is a surface schematic diagram of the elastic component.

[0019] In the figure, 1-upper support plate, 2-lower support plate, 3-upper spherical crown lining plate, 31-annular spring pushing derivation rod, 32-upper non-metal sliding surface plate, 4-lower spherical crown lining plate, 41-protrusion in the groove, 42-lower non-metal sliding surface plate, 43-derivation rod, 44-friction bushing, 45-tub, 46-tension bushing, 5-elastic component, 6-annular spring assembly. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0021] Example 1

[0022] Reference Figures 1-2 As shown in the figure, the present application provides an anti-impact friction pendulum seismic isolation bearing, which comprises an upper support plate (1) and a lower support plate (2), the upper support plate (1) and the lower support plate (2) are connected to a building structure respectively, the opposite surfaces of the upper support plate (1) and the lower support plate (2) are curved surfaces, the space between the two curved surfaces is narrow at both ends and wide in the middle, the curved surface of the upper support plate (1) is provided with an upper metal sliding surface plate (12), and the curved surface of the lower support plate (2) is provided with a lower metal sliding surface plate (22); an upper spherical crown lining plate (3) and a lower spherical crown lining plate (4) are arranged between the upper support plate (1) and the lower support plate (2), the upper surface of the upper spherical crown lining plate (3) is provided with an upper non-metal sliding surface plate (32), the upper non-metal sliding surface plate (32) is in contact with the upper metal sliding surface plate (12), so that the whole of the upper spherical crown lining plate (3) and the lower spherical crown lining plate (4) can slide between the upper metal sliding surface plate (12) and the lower metal sliding surface plate (22), and the energy generated in the horizontal direction of the earthquake can be isolated through the sliding of the upper spherical crown lining plate (3) and the lower spherical crown lining plate (4); the bottom surface of the lower spherical crown lining plate (4) is provided with a lower non-metal sliding surface plate (42), the lower non-metal sliding surface plate (42) is in contact with the lower metal sliding surface plate (22); a plurality of protrusions (51) are arranged on the surface of an elastic component (5) arranged between the upper spherical crown lining plate (3) and the lower spherical crown lining plate (4), and the elastic component (5) is made of a high polymer material. The elastic component (5) prevents the rigid upper and lower spherical crown lining plates from being damaged by impact and plays a buffering role. In addition, the upper spherical crown lining plate (3) is provided with a plurality of grooves and a derivation rod (43) arranged in the grooves, the lower end of the derivation rod (43) penetrates through the elastic component (5) and is threadedly connected with the lower spherical crown lining plate (4), and the derivation rod (43) is arranged to limit the horizontal movement of the upper and lower spherical crown lining plates, so that the upper and lower spherical crown lining plates can only move vertically. In the present application, there are two arrangement modes of the derivation rod (43), one is as shown in the figure, and the other is that the derivation rod (43) is arranged on the lower non-metal sliding surface plate (42) and the lower metal sliding surface plate (22) is arranged on the lower spherical crown lining plate (4). Figure 1The guide rods (43) shown are arranged along the center line of the upper spherical cap liner (3), and the second type is as follows: Figure 2 The guide rods (43) shown are arranged on both sides of the center line of the upper crown liner (3). The guide rods (43) are wrapped with friction bushings (44). The inner surface of the friction bushings (44) is made of low friction material. The friction bushings (44) are set to reduce the friction force of the upper and lower crown liners in vertical movement.

[0023] Example 2:

[0024] refer to Figure 3 As shown, another embodiment of the friction pendulum isolation bearing provided by the present invention includes an upper support plate (1) and a lower support plate (2). The opposing surfaces of the upper support plate (1) and the lower support plate (2) are curved surfaces, forming a space that is narrow at both ends and wide in the middle between the two curved surfaces. An upper metal sliding panel (12) is provided on the curved surface of the upper support plate (1), and a lower metal sliding panel (22) is provided on the curved surface of the lower support plate (2). An upper spherical crown liner (3) and a lower spherical crown liner (4) are provided between the upper support plate (1) and the lower support plate (2). An upper non-metallic sliding panel (32) is provided on the upper surface of the upper spherical crown liner (3). The lower crown liner (4) is in contact with the upper metal sliding panel (12), and a lower non-metallic sliding panel (42) is provided on the bottom surface of the lower crown liner (4). The lower non-metallic sliding panel (42) is in contact with the lower metal sliding panel (22). An elastic component (5) is provided between the upper crown liner (3) and the lower crown liner (4). The surface of the elastic component (5) is provided with a plurality of protrusions (51), and the elastic component (5) is made of polymer material. The upper crown liner (3) is provided with an upper groove, and the elastic component (5) is provided in the upper groove. A boss (45) is provided on the lower crown liner (4). The boss (45) extends into the upper groove of the upper crown liner (3) and contacts the elastic component (5). This arrangement also restricts the horizontal movement of the upper and lower crown liners, so that the upper and lower crown liners can only move vertically.

[0025] Example 3:

[0026] On the basis of embodiment 2, another embodiment of the application is that a plurality of lower grooves are arranged in the lower spherical cap lining plate (4), a groove inner convex (41) is arranged at the bottom of the lower groove, an annular spring assembly (6) is arranged in the lower groove, the annular spring assembly (6) plays a buffering role in the vertical direction, the lower end of the annular spring assembly (6) is embedded in the groove inner convex (41), an annular spring push rod (33) is connected to the upper end of the annular spring assembly (6), the upper end of the annular spring push rod (33) passes through the elastic component (5) and is screwed with the upper spherical cap lining plate (3), the push rod (33) plays a role of limiting the upper and lower spherical cap lining plates, and a tensile lining (46) is arranged in the lower groove of the lower spherical cap lining plate (4).

[0027] While the application has been described with reference to numerous specific embodiments, it is to be understood that various other modifications can be made to the embodiments described herein, and that such modifications are intended to be within the spirit and scope of the application. More specifically, many modifications can be made to adapt a particular situation or material to the teachings of the present disclosure without departing from the central scope thereof. For example, the components or arrangements of components can be reversed or otherwise modified to facilitate appropriate use of the present disclosure, and specific layouts or relative placements of components can be modified, as can occur to one skilled in the art. Still other modifications that fall within the principles and scope of the present application can be apparent to those skilled in the art upon reviewing this disclosure, and it is intended to claim all such modifications as fall within the scope of the claims.

Claims

1. An impact-resistant friction pendulum seismic isolation bearing, characterized in that: The system includes an upper support plate (1) and a lower support plate (2). The opposing surfaces of the upper support plate (1) and the lower support plate (2) are curved surfaces. An upper metal sliding panel (12) is provided on the curved surface of the upper support plate (1), and a lower metal sliding panel (22) is provided on the curved surface of the lower support plate (2). An upper spherical crown liner (3) and a lower spherical crown liner (4) are provided between the upper support plate (1) and the lower support plate (2). An upper non-metallic sliding panel (32) is provided on the upper surface of the upper spherical crown liner (3). The lower crown liner (4) is in contact with the upper metal sliding panel (12), and the bottom surface of the lower crown liner (4) is provided with a lower non-metallic sliding panel (42). The lower non-metallic sliding panel (42) is in contact with the lower metal sliding panel (22). An elastic component (5) is provided between the upper crown liner (3) and the lower crown liner (4). The upper crown liner (3) is provided with multiple grooves and a guide rod (43) is provided in the grooves. The lower end of the guide rod (43) passes through the elastic component (5) and is threadedly connected to the lower crown liner (4). 3) The guide rods (43) are arranged along the center line of the upper crown liner (3) or along both sides of its center line. The guide rods (43) are wrapped with friction bushings (44). The inner surface of the friction bushings (44) is made of low-friction material. The surface of the elastic component (5) is provided with a plurality of protrusions (51). The upper crown liner (3) is provided with an upper groove. The elastic component (5) is disposed in the upper groove. A boss (45) is provided on the lower crown liner (4). The boss (45) extends into the upper groove of the upper crown liner (3) and interacts with the elastic component. The lower crown liner (4) is provided with multiple lower grooves, and the bottom of the lower groove is provided with a groove protrusion (41). The lower groove is provided with an annular spring assembly (6). The lower end of the annular spring assembly (6) is embedded in the groove protrusion (41), and the upper end is connected to an annular spring push guide rod (33). The upper end of the annular spring push guide rod (33) passes through the elastic component (5) and is threadedly connected to the upper crown liner (3). The lower groove on the lower crown liner (4) is provided with a tensile bushing (46).

Images