Tension-compression type hyperbolic friction pendulum shock insulation support

Abstract

The utility model belongs to the technical field of supports, and discloses a tension-compression type hyperbolic friction pendulum shock insulation support. According to the main technical characteristics, an upper base plate, a middle hyperboloid connecting piece and a lower base plate are included, and an upper curved plate, an upper hyperboloid plate, a first upper hyperboloid sliding plate, an upper hyperboloid stainless steel plate, an L-shaped upper hyperboloid plate pulling plate and a second upper hyperboloid sliding plate are arranged between the upper base plate and the middle hyperboloid connecting piece; a lower curved plate, a lower hyperboloid plate, a first lower hyperboloid sliding plate, a lower hyperboloid stainless steel plate, an L-shaped lower hyperboloid plate pulling plate and a second lower hyperboloid sliding plate are arranged between the lower seat plate and the middle hyperboloid connecting piece. The tension-compression type hyperbolic friction pendulum shock insulation support has multiple functions of vertical pressure bearing, vertical tension resistance and horizontal shock insulation at the same time, and is wider in application range.

Description

Technical Field

[0001] The utility model belongs to the technical field of supports, and in particular relates to a tension-compression type hyperbolic friction pendulum seismic isolation support. Background Art

[0002] In bridge and construction projects, there are two widely used isolation bearings. One is a rubber isolation bearing made of rubber and steel plates, and the other is a hyperbolic friction pendulum isolation bearing that relies on two curved surfaces to achieve isolation. The hyperbolic friction pendulum isolation bearing has a simple structure and is mainly composed of an upper seat plate, a hyperbolic member, and a lower seat plate. Since the hyperbolic friction pendulum isolation bearing is easy to process, its performance is easy to guarantee, and it is made entirely of metal steel, compared with rubber isolation bearings, it has the advantages of small structure, large bearing capacity, strong reset ability, good performance stability, no aging, and long service life. It is widely used in bridges, buildings and other fields with isolation requirements. At present, although hyperbolic friction pendulum isolation bearings are widely used, they also have their own shortcomings, and it is not easy to design a pulling function. Due to the lack of pulling function, once an earthquake occurs, vertical seismic waves will appear, generating vertical pulling force, which can easily cause the upper seat plate, hyperbolic member, and lower seat plate of the hyperbolic friction pendulum isolation bearing to separate. If the upper seat plate, hyperbolic member, and lower seat plate are separated at the moment of horizontal seismic force, it is easy to cause the entire bridge to fall or the entire building to collapse. It endangers the personal safety of people on the building, causes road interruption, and affects post-earthquake rescue. Therefore, GB50011 "Code for Seismic Design of Buildings" 5.1.1 clearly states: Large span and long cantilever structures at 8 and 9 degrees and high-rise buildings at 9 degrees should calculate vertical seismic effects. It is enough to show that vertical seismic effects cannot be ignored. Therefore, the development of hyperbolic friction pendulum isolation bearings with tensile function ensures that when bridges and buildings are subjected to upward pulling force, the bearings can still remain as a whole, and the bearings can smoothly realize horizontal reciprocating motion, thereby realizing the seismic isolation function under tension, thereby ensuring the safety of bridges and buildings in earthquakes, which is of far-reaching and significant significance. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a tension-compression hyperbolic friction pendulum seismic isolation support which has the horizontal seismic isolation performance of the current common hyperbolic friction pendulum seismic isolation support and the vertical tensile resistance function.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: it includes an upper seat plate, an intermediate hyperbolic connecting member and a lower seat plate, wherein an upper curved panel is arranged in the middle of the upper seat plate, an upper hyperbolic panel matching the upper curved panel is arranged at the upper end of the intermediate hyperbolic connecting member, a first upper hyperbolic slide plate is arranged on the top surface of the upper hyperbolic panel and the intermediate hyperbolic connecting member, an upper hyperbolic stainless steel plate matching the first upper hyperbolic slide plate is arranged on the bottom surface of the upper curved panel, an L-shaped upper hyperbolic panel pull plate matching the upper hyperbolic panel is arranged on the side wall of the upper curved panel, and the top of the upper hyperbolic panel pull plate is provided with a first upper hyperbolic slide plate. A second upper hyperbolic slide plate is arranged on the upper surface or the bottom surface of the upper hyperbolic plate, a lower curved plate is arranged in the middle part of the lower seat plate, a lower hyperbolic plate matching the lower curved plate is arranged at the lower end of the intermediate hyperbolic connecting piece, a first lower hyperbolic slide plate is arranged on the bottom surfaces of the lower hyperbolic plate and the intermediate hyperbolic connecting piece, a lower hyperbolic stainless steel plate matching the first lower hyperbolic slide plate is arranged on the top surface of the lower curved plate, an L-shaped lower hyperbolic plate pull plate matching the lower hyperbolic plate is arranged on the side wall of the lower curved plate, and a second lower hyperbolic slide plate is arranged on the bottom surface of the lower hyperbolic plate pull plate or the top surface of the lower hyperbolic plate.

[0005] Its additional technical features are: the L-shaped upper hyperbolic panel pull plate is welded to the upper curved panel as a whole, or the L-shaped upper hyperbolic panel pull plate is connected to the upper curved panel by bolts; the L-shaped lower hyperbolic panel pull plate is welded to the lower curved panel as a whole, or the L-shaped lower hyperbolic panel pull plate is connected to the lower curved panel by bolts;

[0006] The upper hyperbolic panel and the L-shaped upper hyperbolic panel pull plate, and the lower hyperbolic panel and the L-shaped lower hyperbolic panel pull plate, maintain a reasonable overlapping size when performing horizontal reciprocating motion within a 360-degree range of the support.

[0007] The utility model provides a tension-compression hyperbolic friction pendulum seismic isolation bearing, in which an intermediate hyperbolic connecting member connects the upper hyperbolic panel and the lower hyperbolic panel into a whole by welding, just like the hyperbolic member of an ordinary hyperbolic friction pendulum seismic isolation bearing. An upper sliding friction pair consisting of a first upper hyperbolic slide plate and an upper hyperbolic stainless steel plate is provided between the upper curved panel and the upper hyperbolic panel, and a lower sliding friction pair consisting of a first lower hyperbolic slide plate and a lower hyperbolic stainless steel plate is provided between the lower curved panel and the lower hyperbolic panel. Under the action of horizontal seismic force, the bearing performs horizontal reciprocating motion along the curved surface, thereby blocking the transmission of seismic force to the bridge or building, reducing the impact of seismic force on the bridge or building, thereby realizing the seismic isolation function of the bearing. The side wall of the upper curved panel is provided with an L-shaped upper hyperbolic panel pull plate, and the side wall of the lower curved panel is provided with an L-shaped lower hyperbolic panel pull plate. When the support performs horizontal reciprocating motion within a range of 360 degrees, the upper hyperbolic panel and the L-shaped upper hyperbolic panel pull plate, and the lower hyperbolic panel and the L-shaped lower hyperbolic panel pull plate respectively always maintain a reasonable overlapping size, thereby ensuring that when the support is in a tension state, the various components of the support are always tightly attached and not separated. Since the upper seat plate is connected to the bottom of the bridge and the building, and the lower seat plate is connected to the pier, it is ensured that during an earthquake, the entire support can be well connected to the bridge, building and pier regardless of whether it is in tension or compression. Ensure that the bridge does not fall and the building does not collapse. A second upper hyperbolic slide plate is provided between the top surface of the L-shaped upper hyperbolic panel pull plate and the bottom surface of the upper hyperbolic panel, and a second lower hyperbolic slide plate is provided between the bottom surface of the L-shaped lower hyperbolic panel pull plate and the top surface of the lower hyperbolic panel. Thus, two pairs of friction pairs are formed when the support is in tension. Both pairs of friction pairs are used to ensure that when the support is in tension, the friction between the upper L-shaped hyperbolic panel tension plate and the upper hyperbolic panel or between the lower L-shaped hyperbolic panel tension plate and the lower hyperbolic panel is reduced, so that the support can also play a good role in seismic isolation under tension. The tension-compression hyperbolic friction pendulum seismic isolation support provided by the utility model has multiple functions of vertical pressure bearing, vertical tension resistance and horizontal seismic isolation, and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of a tension-compression hyperbolic friction pendulum seismic isolation support of the utility model;

[0009] Figure 2 It is a schematic diagram of the first connection structure between the L-shaped lower hyperbolic panel pull plate and the lower curved panel;

[0010] Figure 3 Schematic diagram of the second connection structure between the L-shaped lower hyperbolic panel pull plate and the lower curved panel. DETAILED DESCRIPTION

[0011] The structure of a tension-compression hyperbolic friction pendulum seismic isolation support provided by the utility model will be further described below in conjunction with the accompanying drawings.

[0012] like Figure 1 As shown, the utility model is a tension-compression hyperbolic friction pendulum seismic isolation support comprising an upper seat plate 1, an intermediate hyperbolic connecting member 2 and a lower seat plate 3, an upper curved panel 4 is arranged in the middle of the upper seat plate 1, an upper hyperbolic panel 5 matching the upper curved panel 4 is arranged at the upper end of the intermediate hyperbolic connecting member 2, a first upper hyperbolic slide plate 6 is arranged on the top surface of the upper hyperbolic panel 5 and the intermediate hyperbolic connecting member 2, an upper hyperbolic stainless steel plate 7 matching the first upper hyperbolic slide plate 6 is arranged on the bottom surface of the upper curved panel 4, an L-shaped upper hyperbolic panel pull plate 8 matching the upper hyperbolic panel 5 is arranged on the side wall of the upper curved panel 4, and the upper hyperbolic panel pull plate A second upper hyperbolic slide plate 9 is provided on the top surface of 8, a lower curved panel 10 is provided in the middle part of the lower seat plate 3, a lower hyperbolic panel 11 matching the lower curved panel 10 is provided at the lower end of the intermediate hyperbolic connecting member 2, a first lower hyperbolic slide plate 12 is provided on the bottom surfaces of the lower hyperbolic panel 11 and the intermediate hyperbolic connecting member 2, a lower hyperbolic stainless steel plate 13 matching the first lower hyperbolic slide plate 12 is provided on the top surface of the lower curved panel 10, an L-shaped lower hyperbolic panel pull plate 14 matching the lower hyperbolic panel 11 is provided on the side wall of the lower curved panel 10, and a second lower hyperbolic slide plate 15 is provided on the top surface of the lower hyperbolic panel 11.

[0013] like Figure 2 As shown, the L-shaped lower hyperbolic panel pull plate 14 is connected to the lower curved panel 10 via bolts 16 .

[0014] like Figure 3 As shown, the L-shaped lower hyperbolic panel pull plate 14 is welded to the lower curved panel 10 as a whole.

[0015] The utility model provides a tension-compression hyperbolic friction pendulum seismic isolation bearing, in which the middle hyperbolic connecting member 2 connects the upper hyperbolic panel 5 and the lower hyperbolic panel 11 into a whole by welding, just like the hyperbolic member of an ordinary hyperbolic friction pendulum seismic isolation bearing. An upper sliding friction pair consisting of a first upper hyperbolic slide plate 6 and an upper hyperbolic stainless steel plate 7 is arranged between the upper curved panel 4 and the upper hyperbolic panel 5, and a lower sliding friction pair consisting of a first lower hyperbolic slide plate 12 and a lower hyperbolic stainless steel plate 13 is arranged between the lower curved panel 10 and the lower hyperbolic panel 11. Under the action of horizontal seismic force, the bearing performs horizontal reciprocating motion along the curved surface, thereby blocking the seismic force from being transmitted to the bridge or building, reducing the impact of the seismic force on the bridge or building, thereby realizing the seismic isolation function of the bearing. The side wall of the upper curved panel 4 is provided with an L-shaped upper hyperbolic panel pull plate 8, and the side wall of the lower curved panel 10 is provided with an L-shaped lower hyperbolic panel pull plate 14. When the support performs horizontal reciprocating motion within a range of 360 degrees, the upper hyperbolic panel 5 and the L-shaped upper hyperbolic panel pull plate 8, and the lower hyperbolic panel 11 and the L-shaped lower hyperbolic panel pull plate 14 respectively always maintain a reasonable overlapping size, thereby ensuring that when the support is in a tension state, the various components of the support are always tightly attached and not separated. Since the upper seat plate 1 is connected to the bottom of the bridge and the building, and the lower seat plate 3 is connected to the pier, it is ensured that during an earthquake, the entire support can be well connected to the bridge, building and pier regardless of whether it is in tension or compression. Ensure that the bridge does not fall and the building does not collapse. A second upper hyperbolic plate 9 is arranged between the top surface of the L-shaped upper hyperbolic plate 8 and the bottom surface of the upper hyperbolic plate 5, and a second lower hyperbolic plate 15 is arranged between the bottom surface of the L-shaped lower hyperbolic plate 14 and the top surface of the lower hyperbolic plate 11. Thus, two pairs of friction pairs are formed when the support is in a tension state. Both pairs of friction pairs are used to ensure that when the support is in a tension state, the friction between the L-shaped upper hyperbolic plate 8 and the upper hyperbolic plate 5 or between the L-shaped lower hyperbolic plate 14 and the lower hyperbolic plate 11 is reduced, so that the support can also play a good role in seismic isolation in a tension state.

[0016] The tension-compression hyperbolic friction pendulum isolation support provided by the utility model is not limited to the following structure. Any modifications, equivalent replacements and improvements made on the basis of the utility model should be included in the protection scope of the utility model.

Claims

1. A tension-compression hyperbolic friction pendulum seismic isolation support, comprising an upper seat plate, an intermediate hyperbolic connecting member and a lower seat plate, characterized in that: An upper curved panel is arranged in the middle of the upper seat plate, an upper hyperbolic panel matching the upper curved panel is arranged at the upper end of the middle hyperbolic connecting member, a first upper hyperbolic slide plate is arranged on the top surface of the upper hyperbolic panel and the middle hyperbolic connecting member, an upper hyperbolic stainless steel plate matching the first upper hyperbolic slide plate is arranged on the bottom surface of the upper curved panel, an L-shaped upper hyperbolic panel pull plate matching the upper hyperbolic panel is arranged on the side wall of the upper curved panel, a second upper hyperbolic slide plate is arranged on the top surface of the upper hyperbolic panel pull plate or the bottom surface of the upper hyperbolic panel, A lower curved panel is provided in the middle of the lower seat plate, a lower hyperbolic panel matching the lower curved panel is provided at the lower end of the middle hyperbolic connecting piece, a first lower hyperbolic slide plate is provided on the bottom surfaces of the lower hyperbolic panel and the middle hyperbolic connecting piece, a lower hyperbolic stainless steel plate matching the first lower hyperbolic slide plate is provided on the top surface of the lower curved panel, an L-shaped lower hyperbolic panel pull plate matching the lower hyperbolic panel is provided on the side wall of the lower curved panel, and a second lower hyperbolic slide plate is provided on the bottom surface of the lower hyperbolic panel pull plate or the top surface of the lower hyperbolic panel.

2. The tension-compression hyperbolic friction pendulum seismic isolation support according to claim 1, characterized in that: The L-shaped upper hyperbolic panel pull plate is welded to the upper curved panel as a whole, or the L-shaped upper hyperbolic panel pull plate is connected to the upper curved panel by bolts; the L-shaped lower hyperbolic panel pull plate is welded to the lower curved panel as a whole, or the L-shaped lower hyperbolic panel pull plate is connected to the lower curved panel by bolts.

3. The tension-compression hyperbolic friction pendulum isolation support according to claim 1, characterized in that: The upper hyperbolic panel and the L-shaped upper hyperbolic panel pull plate, and the lower hyperbolic panel and the L-shaped lower hyperbolic panel pull plate, maintain a reasonable overlapping size when performing horizontal reciprocating motion within a 360-degree range of the support.

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