Friction pendulum seismic isolation bearing structure

Abstract

The application discloses a friction pendulum seismic isolation support structure, which comprises an upper support, a lower support, a spherical cap body, a first damper, a second damper, a third damper and a fourth damper. The upper support is fixed to the bottom of the upper structure of a building structure, and the bottom of the upper support is formed with an upper friction surface. The outer part of the upper support is sleeved with an upper sealing ring. The lower support is fixed to the top of the lower structure of the building structure, and the top of the lower support is formed with a lower friction surface. The lower friction surface is oppositely arranged with the upper friction surface, and the outer part of the lower support is sleeved with a lower sealing ring. The lower sealing ring is sealingly connected to the upper sealing ring. The spherical cap body is slidably arranged between the lower friction surface and the upper friction surface. The first damper is hingedly connected between the upper sealing ring and the bottom of the upper structure. The second damper is hingedly connected between the lower sealing ring and the top of the lower structure. The third damper is hingedly connected between the spherical cap body and the outer edge of the upper friction surface. The fourth damper is hingedly connected between the upper support and the lower support. The application solves the problems that the existing friction pendulum seismic isolation support and seismic isolation support structure are prone to dislocation and the friction pendulum cannot return to the original position when the amplitude of vibration is large.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a friction pendulum seismic isolation bearing structure. BACKGROUND

[0002] The friction pendulum seismic isolation bearing and seismic isolation support structure is a common isolation and damping technology in the seismic design of buildings or other important structures, which mainly functions to reduce the ground acceleration and vibration transmission of the structure when an earthquake or other vibration event occurs, thereby protecting the safety of the building and its internal facilities.

[0003] At present, the existing friction pendulum seismic isolation bearing and seismic isolation support structure can effectively deal with some relatively small amplitude situations. In this case, the friction pendulum seismic isolation bearing and seismic isolation support structure can effectively consume vibration energy and reduce the vibration transmission of the structure, and after the earthquake, the sliding seat will automatically return to the initial position and restore to the normal state due to the action of friction. However, in the case of relatively large amplitude, the friction pendulum may impact the surrounding structure, resulting in misalignment and the friction pendulum being stuck and unable to return to position. SUMMARY

[0004] In order to overcome the defects of the prior art, the present application provides a friction pendulum seismic isolation bearing structure to solve the problem of misalignment and the friction pendulum being unable to return to position when the existing friction pendulum seismic isolation bearing and seismic isolation support structure is used in a large amplitude situation.

[0005] To achieve the above-mentioned purpose, a friction pendulum seismic isolation bearing structure is provided, comprising:

[0006] An upper bearing is fixed to the bottom of the upper structure of the building structure, the bottom of the upper bearing is formed with an upper friction surface, and the outer part of the upper bearing is sleeved with an upper sealing ring;

[0007] A lower bearing is arranged below the upper bearing and is fixed to the top of the lower structure of the building structure, the top of the lower bearing is formed with a lower friction surface, the lower friction surface is arranged opposite to the upper friction surface, the outer part of the lower bearing is sleeved with a lower sealing ring, and the lower sealing ring is sealingly connected to the upper sealing ring;

[0008] A spherical cap body is slidingly arranged between the lower friction surface and the upper friction surface;

[0009] A first damper is hingedly connected between the upper sealing ring and the bottom of the upper structure;

[0010] A second damper is hingedly connected between the lower sealing ring and the top of the lower structure;

[0011] a third damper hinged between the spherical crown and the outer edge of the upper friction surface;

[0012] a fourth damper hinged between the upper support and the lower support.

[0013] Further, the first dampers are multiple in number and are arranged along the circumferential direction of the upper sealing ring.

[0014] Further, the second dampers are multiple in number and are arranged along the circumferential direction of the lower sealing ring.

[0015] Further, the positions of the first dampers correspond to the positions of the second dampers.

[0016] Further, the third dampers are multiple in number and are arranged along the circumferential direction of the upper friction surface.

[0017] Further, the fourth dampers are multiple in number and are arranged along the circumferential direction of the lower friction surface.

[0018] Further, the lower end of the upper sealing ring is formed with a first flange, the upper end of the lower sealing ring is formed with a second flange, and the first flange is connected to the second flange by bolts.

[0019] Further, the top of the lower support is formed with a bearing platform, the top of the bearing platform is formed with the lower friction surface, one end of the fourth damper is hinged to the side of the bearing platform, and the other end of the fourth damper is hinged to the outer edge of the upper support.

[0020] Further, the outer edge of the upper support is formed with a limiting convex ridge arranged along a circle in the circumferential direction of the upper friction surface, one end of the third damper is hinged to the side of the spherical crown, and the other end of the third damper is hinged to the side of the limiting convex ridge.

[0021] The beneficial effects of the present application are that when the friction pendulum seismic isolation bearing structure of the present application is used, when the earthquake affects the lower structure and the upper structure, the upper bearing and the lower bearing generate relative displacement in the horizontal direction, thereby breaking the connection between the upper sealing ring and the lower sealing ring, and reducing the energy brought by the earthquake through the movement of the spherical crown, and the third damper can further improve the reduction amplitude, and the fourth damper can be used to protect the stability of the internal structure of the equipment. The lower sealing ring and the upper sealing ring can protect the internal structure of the equipment in daily situations to avoid external environmental erosion, and the second damper and the first damper can be used to cope with some large earthquake amplitudes to improve the stability of the equipment, and the second damper and the first damper can convert the energy of the amplitude into heat energy, and the second damper and the first damper are exposed for a long time, so that heat dissipation can be conveniently realized.

[0022] The friction pendulum seismic isolation bearing structure of the present application is provided with a fourth damper and a third damper, so that the spherical crown seismic isolation bearing can effectively cope with the amplitude brought by the earthquake, and the third damper can quickly reduce the vibration energy when the spherical crown reduces the vibration energy by swinging, and the fourth damper can ensure the relative stability of the internal structure of the bearing platform and the upper bearing to improve the stability of the equipment, and when some relatively large amplitudes are encountered, the third damper can assist the spherical crown to quickly reset, improve the energy consumed by the movement of the spherical crown, and also reduce the probability of the spherical crown failing to reset.

[0023] The friction pendulum seismic isolation bearing structure of the present application is provided with a lower sealing ring and a second damper, so that the lower sealing ring and the upper sealing ring on the seismic isolation support structure can protect the internal structure of the upper bearing and the lower bearing, and reduce the erosion from the external environment during long-term use, improve the safety of the equipment, and the second damper can also convert the energy brought by the earthquake into heat energy, and the second damper and the first damper are exposed, so that heat dissipation can be realized, improving the stability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0024] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments made with reference to the accompanying drawings:

[0025] Fig. 1 The figure is a structural schematic diagram of the friction pendulum seismic isolation bearing structure of the embodiment of the present application.

[0026] Fig. 2 The figure is an exploded structural schematic diagram of the friction pendulum seismic isolation bearing structure of the embodiment of the present application.

[0027] Fig. 3 The figure is a sectional view of the friction pendulum seismic isolation bearing structure of the embodiment of the present application.

[0028] Fig. 4 Figure 1 is a schematic view of a friction pendulum seismic isolation bearing structure according to an embodiment of the present application. DETAILED DESCRIPTION

[0029] The application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application, and not to limit the application. In addition, it should be noted that only the parts related to the application are shown in the drawings for ease of description.

[0030] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0031] Reference Figs. 1 to 4 As shown in the drawings, the present application provides a friction pendulum seismic isolation bearing structure, comprising: an upper bearing 1, a lower bearing 2, a spherical crown body 3, a first damper 4, a second damper 5, a third damper 6, and a fourth damper 7.

[0032] The upper bearing 1 is fixedly arranged at the bottom of the upper structure 8 of the building structure. The bottom of the upper bearing 1 is formed with an upper friction surface, and the outer portion of the upper bearing 1 is sleeved with an upper sealing ring 11.

[0033] In the embodiment, the top of the upper bearing 1 is formed with an upper anchoring plate. The upper bearing is cylindrical. The upper anchoring plate is rectangular. The upper anchoring plate is installed at the bottom of the upper structure by bolts.

[0034] The lower bearing 2 is arranged below the upper bearing 1. The lower bearing 2 is fixedly arranged at the top of the lower structure 9 of the building structure. The top of the lower bearing 2 is formed with a lower friction surface. The lower friction surface is arranged opposite to the upper friction surface.

[0035] The outer portion of the lower bearing 2 is sleeved with a lower sealing ring 21. The lower sealing ring 21 is sealingly connected to the upper sealing ring 11.

[0036] As a preferred embodiment, the lower end of the upper sealing ring 11 is formed with a first flange. The upper end of the lower sealing ring 21 is formed with a second flange. The first flange is connected to the second flange by bolts.

[0037] As a preferred embodiment, the lower end of the upper sealing ring 11 is formed with a first flange. The upper end of the lower sealing ring 21 is formed with a second flange. The first flange is connected to the second flange by bolts.

[0038] In the embodiment, the bottom of the lower bearing is formed with a lower anchoring plate. The lower bearing is cylindrical. The lower anchoring plate is rectangular. The lower anchoring plate is installed at the bottom of the lower structure by bolts.

[0039] The spherical cap 3 is slidably arranged between the lower friction surface and the upper friction surface.

[0040] The first dampers 4 are hingedly connected between the upper seal ring 11 and the bottom of the upper structure 8.

[0041] As a preferred embodiment, the number of the first dampers 4 is plural. The plural first dampers 4 are arranged along the circumferential direction of the upper seal ring 11.

[0042] The second dampers 5 are hingedly connected between the lower seal ring 21 and the top of the lower structure 9.

[0043] As a preferred embodiment, the number of the second dampers 5 is plural. The plural second dampers 5 are arranged along the circumferential direction of the lower seal ring 21.

[0044] As a preferred embodiment, the positions of the first dampers 4 correspond to the positions of the second dampers 5.

[0045] The third dampers 6 are hingedly connected between the spherical cap 3 and the outer edge of the upper friction surface.

[0046] As a preferred embodiment, the number of the third dampers 6 is plural. The plural third dampers 6 are arranged along the circumferential direction of the upper friction surface.

[0047] As a preferred embodiment, the outer edge of the upper support 1 is formed with a limiting protrusion. The limiting protrusion is arranged along a circle of the circumferential direction of the upper friction surface. One end of the third damper 6 is hingedly connected to the side of the spherical cap 3. The other end of the third damper 6 is hingedly connected to the side of the limiting protrusion.

[0048] The fourth dampers 7 are hingedly connected between the upper support 1 and the lower support 2.

[0049] As a preferred embodiment, the number of the fourth dampers 7 is plural. The plural fourth dampers 7 are arranged along the circumferential direction of the lower friction surface.

[0050] As a preferred embodiment, the top of the lower support 2 is formed with a bearing platform 22. The top of the bearing platform 22 is formed with the lower friction surface. One end of the fourth damper 7 is hingedly connected to the side of the bearing platform 22. The other end of the fourth damper 7 is hingedly connected to the outer edge of the upper support 1.

[0051] In the present embodiment, the first dampers 4 and the second dampers 5 are friction dampers respectively. The third dampers 6 and the fourth dampers 7 are hydraulic dampers respectively.

[0052] In the embodiment, the top of the lower structure of the building structure is threadedly connected with a fixing bolt, the top of the lower structure is threadedly connected with a lower anchor plate through the fixing bolt, the top of the lower anchor plate is provided with a lower sealing ring, the outer surface of the lower sealing ring is fixedly connected with a second damper, and the end of the second damper away from the lower sealing ring is fixedly connected with the top of the lower structure. The outer surface of the upper sealing ring is fixedly connected with a first damper. The second damper and the first damper can effectively cope with some larger amplitudes. The larger amplitudes can cause the dislocation of the upper support and the lower support, and the second damper and the first damper can reduce the amplitude energy and reset the upper support and the lower support after the earthquake.

[0053] The end of the first damper away from the upper sealing ring is fixedly connected with the bottom of the upper structure. The second damper and the first damper are arranged in an annular array and equidistantly distributed.

[0054] The top of the lower sealing ring is attached with the upper sealing ring, and the flanges of the lower sealing ring and the upper sealing ring are sealingly connected through closure bolts. The top of the upper sealing ring is provided with an upper anchor plate. The top of the upper anchor plate is connected with an upper structure. The upper anchor plate is threadedly connected with the upper structure through a fixing bolt, and the inner side of the upper sealing ring is fixedly connected with an upper support. The inner side of the lower sealing ring is fixedly connected with a lower support.

[0055] The inner side of the upper support close to the bottom is fixedly connected with an upper friction surface. The top of the lower support close to the center is fixedly connected with a bearing platform. The outer surface of the bearing platform close to the bottom is fixedly connected with a fourth damper. The fourth damper is used to improve the stability of the relative position of the upper support and the bearing platform and improve the stability of the spherical crown body when coping with amplitudes. The end of the fourth damper away from the bearing platform is connected with the bottom of the upper support close to the edge. The fourth damper and the third damper are arranged in an annular array and equidistantly distributed. The top of the spherical crown body is attached with the bottom of the upper friction surface, and the bottom of the spherical crown body is attached with the top of the lower friction surface. The top of the bearing platform close to the center is fixedly connected with a lower friction surface. The lower friction surface and the upper friction surface are provided with the spherical crown body. The outer surface of the spherical crown body is fixedly connected with the third damper. The third damper limits the position of the spherical crown body, so that the spherical crown body consumes more energy brought by the earthquake with each friction movement, which is beneficial to improve the stability of the equipment. The end of the third damper away from the spherical crown body is fixedly connected with the inner edge of the upper support.

[0056] In the use of the friction pendulum seismic isolation bearing structure of the application, when the lower structure and the upper structure are affected by the earthquake, the upper bearing and the lower bearing are relatively dislocated in the horizontal direction, thereby breaking the connection between the upper sealing ring and the lower sealing ring, and reducing the energy brought by the earthquake through the movement of the spherical crown body, and the third damper can further improve the reduction amplitude, and the fourth damper can be used to protect the stability of the internal structure of the equipment. While the lower sealing ring and the upper sealing ring can protect the internal structure of the equipment in daily situations to avoid external environmental erosion, the second damper and the first damper can be used to cope with some larger earthquake amplitudes, improve the stability of the equipment, and the second damper and the first damper can convert the energy of the amplitude into heat energy. Because the second damper and the first damper are exposed for a long time, they can be easily cooled.

[0057] The friction pendulum seismic isolation bearing structure of the application is provided with a fourth damper and a third damper, so that the spherical crown body seismic isolation bearing can effectively cope with the amplitude brought by the earthquake. When the spherical crown body reduces the vibration energy by swinging, the third damper can quickly reduce the amplitude, and the fourth damper can ensure the relative stability of the internal structure of the pile cap and the upper bearing, thereby improving the stability of the equipment. When coping with some relatively large amplitudes, the third damper can assist the spherical crown body to quickly return to its original position, improve the energy consumed by the movement of the spherical crown body, and also reduce the probability of the spherical crown body failing to return to its original position.

[0058] The friction pendulum seismic isolation bearing structure of the application is provided with a lower sealing ring and a second damper, so that the lower sealing ring and the upper sealing ring on the seismic isolation support structure can protect the internal structure of the upper bearing and the lower bearing, and reduce the erosion from the external environment during long-term use, thereby improving the safety of the equipment. When in use, the second damper can also convert the energy brought by the earthquake into heat energy, and the second damper and the first damper are exposed to the outside, so they can cool themselves, thereby improving the stability of the equipment.

[0059] The above description is only the preferred embodiment of the application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the application disclosed in the application is not limited to the technical solutions formed by the specific combination of the above technical features, and also covers other technical solutions formed by any combination of the above technical features or equivalent features without departing from the inventive concept. For example, the above features can be replaced with the technical features disclosed in the application (but not limited to) having similar functions to form technical solutions.

Claims

1. A friction pendulum seismic isolation bearing structure, characterized by, The utility model relates to a damping device for building structure, comprising: an upper support fixed to the bottom of the upper structure of the building structure, the bottom of the upper support is formed with an upper friction surface, the outer part of the upper support is sleeved with an upper sealing ring; a lower support arranged below the upper support, fixed to the top of the lower structure of the building structure, the top of the lower support is formed with a lower friction surface, the lower friction surface is arranged opposite to the upper friction surface, the outer part of the lower support is sleeved with a lower sealing ring, and the lower sealing ring is sealingly connected to the upper sealing ring; a spherical cap body sliding between the lower friction surface and the upper friction surface; a first damper hinged between the upper sealing ring and the bottom of the upper structure; a second damper hinged between the lower sealing ring and the top of the lower structure; a third damper hinged between the spherical cap body and the outer edge of the upper friction surface; a fourth damper hinged between the upper support and the lower support.

2. The friction pendulum seismic isolation bearing structure according to claim 1, wherein The number of the first dampers is multiple, and the multiple first dampers are arranged at intervals along the circumferential direction of the upper sealing ring.

3. The friction pendulum seismic isolation bearing structure according to claim 2, wherein The number of the second dampers is multiple, and the multiple second dampers are arranged at intervals along the circumferential direction of the lower sealing ring.

4. The friction pendulum seismic isolation bearing structure according to claim 3, wherein The positions of the first dampers correspond to the positions of the second dampers.

5. The friction pendulum seismic isolation bearing structure according to claim 1, wherein The number of the third dampers is multiple, and the multiple third dampers are arranged at intervals along the circumferential direction of the upper friction surface.

6. The friction pendulum seismic isolation bearing structure according to claim 1, wherein The number of the fourth dampers is multiple, and the multiple fourth dampers are arranged at intervals along the circumferential direction of the lower friction surface.

7. The friction pendulum seismic isolation bearing structure according to claim 1, wherein The lower end of the upper sealing ring is formed with a first flange, the upper end of the lower sealing ring is formed with a second flange, and the first flange is connected to the second flange through bolts.

8. The friction pendulum seismic isolation bearing structure according to claim 1, wherein The top of the lower support is formed with a bearing platform, the top of the bearing platform is formed with the lower friction surface, one end of the fourth damper is hinged to the side of the bearing platform, and the other end of the fourth damper is hinged to the outer edge of the upper support.

9. The friction pendulum seismic isolation bearing structure according to claim 1, wherein The outer edge of the upper support is formed with a limiting convex rib arranged in a circle along the circumferential direction of the upper friction surface, one end of the third damper is hinged to the side of the spherical cap body, and the other end of the third damper is hinged to the side of the limiting convex rib.

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