A three-dimensional seismic isolation / vibration isolation device with limit

Abstract

The present invention provides a three-dimensional seismic isolation / vibration isolation device with a limit, which comprises an upper top plate (1), a vertical elastic member (2), an upper plate (3) with a pit, a lower plate (4) with a pit, a spherical rolling member (5), an upper horizontal limit plate (6), a lower horizontal limit plate (7), a vertical tensile member (8) and a flexible limit device (9). The upper top plate (1) carries an upper structure, and the lower part is connected to the upper plate (3) with a pit through the vertical elastic member (2). The spherical rolling member (5) is arranged in a pit between the upper plate (3) with a pit and the lower plate (4) with an arc-shaped pit. The lower part of the lower plate (4) with a pit is connected to a supporting structure. Vertical tensile members (8) are arranged around the upper plate (1) and the upper plate (3) with a pit, and the flexible limit devices (9) are arranged at the positions of the upper top plate (1) and the upper plate (3) with the pit. The upper and lower horizontal limit plates (6, 7) are connected to the upper top plate (1) and the upper plate (3) with the pit, respectively.

Description

Technical Field

[0001] The invention relates to structural seismic isolation / vibration isolation technology, and in particular to a three-dimensional seismic isolation / vibration isolation device with limit. Background Art

[0002] my country is located in an earthquake-prone area. With the increasing application of structural vibration control technology in civil engineering, seismic isolation / vibration isolation technology is being used more and more. Seismic isolation / vibration isolation technology prolongs the vibration period of the structural system by adding seismic isolation / vibration isolation devices, effectively reduces the vibration input energy, and significantly reduces the vibration response of the structure. Limited by the performance of the device, most of the current seismic isolation / vibration isolation devices can only perform seismic isolation / vibration in the horizontal direction, and it is difficult to effectively control vertical vibration or earthquake. At the same time, although there are a small number of three-dimensional seismic isolation / vibration isolation devices, there is a lack of effective and reasonable limit for large horizontal and vertical deformations, which limits the application and promotion of seismic isolation / vibration isolation technology. Summary of the invention

[0003] In order to overcome the above-mentioned problems existing in the prior art, the present invention provides a three-dimensional seismic isolation / vibration device with limits, which realizes simultaneous horizontal bidirectional and vertical vibration isolation through reasonable structure. The horizontal vibration isolation is realized by a spherical rolling member between an upper plate with arc-shaped pits and a lower plate with arc-shaped pits, and the vertical vibration isolation is realized by vertical deformation of a vertical elastic member. At the same time, large deformation is avoided by horizontal limit plates, vertical tensile members and flexible limit devices, so as to improve the stability and reliability of the three-dimensional seismic isolation / vibration device.

[0004] The object of the present invention is to provide a three-dimensional seismic isolation / vibration isolation device with a limit, which is composed of an upper top plate (1), a vertical elastic member (2), an upper plate (3) with a pit, a lower plate (4) with a pit, a spherical rolling member (5), a horizontal limit plate, a vertical tensile member (8), and a flexible limit device (9), wherein the upper top plate (1) bears an upper structure, the lower part of the upper top plate (1) is connected to the upper plate (3) with a pit through a vertical elastic member (2), the spherical rolling member (5) is arranged in a pit between the upper plate (3) with a pit and the lower plate (4) with an arc-shaped pit, the lower part of the lower plate (4) with a pit is connected to a supporting structure, the lower plate (4) with a pit is provided with vertical tensile members (8) around it, and flexible limit devices (9) are arranged on the inner side of the vertical tensile member (8) at positions corresponding to the upper top plate (1) and the upper plate (3) with a pit.

[0005] Preferably, the horizontal limit plate comprises an upper horizontal limit plate (6) and a lower horizontal limit plate (7), and the upper horizontal limit plate (6) and the lower horizontal limit plate (7) are respectively connected to the upper top plate (1) and the upper plate (3) with the pit.

[0006] Preferably, the upper top plate (1) of the three-dimensional seismic isolation / vibration isolation device with limits and the lower plate (4) with pits are respectively connected to the upper structure and the seismic isolation / vibration isolation device supporting structure, and the upper horizontal limit plate (6), the lower horizontal limit plate (7) and the vertical tensile member (8) are installed after the main body of the seismic isolation / vibration isolation device is installed.

[0007] Preferably, the vertical elastic member (2) is a vertical elastic member made of polyurethane polymer material, a coil spring or a butterfly spring.

[0008] Preferably, the upper top plate (1), the upper plate with the pit (3), the lower plate with the pit (4), the vertical tensile member (8), the upper horizontal limit plate (6) and the lower horizontal limit plate (7) are all made of high-strength steel.

[0009] Preferably, the upper plate (3) with the pit is arranged opposite to the pit sides of the lower plate (4) with the pit, and the spherical rolling element (5) is distributed in the center of the pit (10).

[0010] Preferably, the pit (10) is arc-shaped.

[0011] Preferably, the flexible limiting device (9) is a flexible limiting device made of polyurethane polymer material.

[0012] Preferably, the deformation capacity of the flexible limiting device (9) is not less than 25 mm.

[0013] The beneficial effects of the present invention are as follows: through reasonable construction, a three-dimensional seismic isolation / vibration device with limit is proposed, and the device can realize simultaneous vibration isolation in both horizontal and vertical directions. The horizontal vibration isolation is realized by a spherical rolling member between an upper plate with an arc-shaped pit and a lower plate with an arc-shaped pit, and the vertical vibration isolation is realized by vertical deformation of a vertical elastic member; at the same time, large deformation is avoided by means of a horizontal limit plate, a vertical tensile member and a flexible limit device, thereby improving the stability and reliability of the three-dimensional seismic isolation / vibration device. The tensile device has a simple structure, is easy to obtain materials, and is convenient to process. Once installed, it can be maintenance-free, and has great engineering practical value.

[0014] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. The objects and features of the present invention will become more apparent in view of the following description in conjunction with the accompanying drawings, in which:

[0016] AttachedFigure 1 A schematic diagram of a three-dimensional seismic isolation / vibration isolation device with limit according to an exemplary embodiment of the present invention;

[0017] Attached Figure 2 A top view of a three-dimensional seismic isolation / vibration device according to an exemplary embodiment of the present invention;

[0018] Attached Figure 3 Schematic diagram of an upper plate (or lower plate) with arc-shaped pits of a three-dimensional seismic isolation / vibration isolation device according to an exemplary embodiment of the present invention.

[0019] In the figure, 1-upper top plate, 2-vertical elastic member, 3-upper plate with pits, 4-lower plate with pits, 5-spherical rolling member, 6-upper horizontal limit plate, 7-lower horizontal limit plate, 8-vertical tensile member, 9-flexible limit device, 10-pit DETAILED DESCRIPTION

[0020] The specific implementation modes of the present invention are described in detail below with reference to the accompanying drawings, but are not intended to limit the protection scope of the present invention.

[0021] refer to Figure 1-3 ,like Figure 1-Figure 3As shown, the three-dimensional seismic isolation / vibration isolation device with limits proposed in the present invention includes: an upper top plate 1, a vertical elastic member 2, an upper plate 3 with pits, a lower plate 4 with pits, a spherical rolling member 5, an upper horizontal limit plate 6, a lower horizontal limit plate 7, a vertical tensile member 8, and a flexible limit device 9. The adopted pit 10 is an arc-shaped pit, so as to adapt to the spherical rolling element 5; the upper top plate 1 carries the upper structure (for example, a structure requiring vibration isolation), and the lower part of the upper top plate 1 is connected to the upper plate 3 with the pit through the vertical elastic member 2, for example, the upper top plate 1, the vertical elastic member 2 and the upper plate 3 can be fixed by welding, bolting and the like; the spherical rolling element 5 is located in the pit between the upper plate 3 with the pit and the lower plate 4 with the pit, and the lower part of the lower plate 4 with the pit is arranged on the supporting structure, for example, a platform requiring vibration isolation, and the upper horizontal limit plate 6 and the lower horizontal limit plate 7 are respectively connected to the upper top plate 1 and the upper plate 3 with the pit, for example, they can be connected by welding, bolts and the like; the lower plate 4 with the pit is provided with vertical tensile members 8 (for example, they can be connected by welding or bolts) around it, and the inner side of the vertical tensile member 8 is provided with flexible limit devices 9 at the positions corresponding to the upper top plate 1 and the upper plate 3 with the pit. In actual use, the upper top plate 1 and the lower plate 4 with pits of the three-dimensional seismic isolation / vibration device are respectively connected to the upper structure and the support structure of the seismic isolation / vibration device. The installation of the horizontal limit plates 6, 7 and the vertical tensile member 8 should be carried out after the main body of the seismic isolation / vibration device is installed. In actual work, the seismic isolation / vibration device realizes horizontal seismic isolation / vibration through the upper plate 3 with pits, the spherical rolling member 5, and the lower plate 4 with pits, that is, horizontal vibration isolation is realized by the horizontal rolling of the spherical rolling member 5 in the pit 10; vertical seismic isolation / vibration is realized through the vertical elastic member 2, and at the same time, the upper horizontal limit plate 6 and the lower horizontal limit plate 7 are used to ensure that the vertical elastic member 2 of the device does not deform horizontally, and the vertical and horizontal limit of the seismic isolation / vibration device is realized through the vertical tensile member 8 and the flexible limit device 9, so as to ensure the seismic isolation / vibration performance under large deformation.

[0022] In this embodiment, the vertical elastic member 2 is made of polyurethane polymer material, coil spring or butterfly spring, and the appropriate vertical elastic member 2 can be selected according to the application object, such as a support structure or a platform, to meet the vibration isolation requirements. Of course, other elastic materials known in the art can also be used.

[0023] In this embodiment, the plate components (including the upper top plate 1, the upper plate 3 with pits, and the lower plate 4 with pits), the tensile components (including the vertical tensile components 8) and the limit plates (including the upper horizontal limit plates 6 and the lower horizontal limit plates 7) can all be made of high-strength steel.

[0024] In this embodiment, the upper plate 3 with the pit and the lower plate 4 with the pit are arranged opposite to each other on the side with the pit 10 , and the spherical rolling element 5 is distributed in the center of the pit 10 .

[0025] In this embodiment, the flexible limiting device 9 can be made of polyurethane polymer material, and of course other flexible materials well known in the art can also be used.

[0026] In this embodiment, the deformation capacity of the flexible limiting device 9 is not less than 25 mm to meet the basic anti-seismic / anti-vibration requirements.

[0027] The technical solutions provided by the embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, those skilled in the art may make changes in the specific implementation methods and application scopes according to the embodiments of the present invention. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A three-dimensional seismic isolation / vibration isolation device with limit, characterized in that: The invention is composed of an upper top plate (1), a vertical elastic member (2), an upper plate with a pit (3), a lower plate with a pit (4), a spherical rolling member (5), a horizontal limiting plate, a vertical tensile member (8) and a flexible limiting device (9), wherein the upper top plate (1) bears the upper structure, the lower part of the upper top plate (1) is connected to the upper plate with a pit (3) through the vertical elastic member (2), the spherical rolling member (5) is arranged in the pit between the upper plate with a pit (3) and the lower plate with a pit (4), the lower part of the lower plate with a pit (4) is connected to the supporting structure, the lower plate with a pit (4) is provided with vertical tensile members (8) around it, and the flexible limiting devices (9) are arranged on the inner side of the vertical tensile members (8) at positions corresponding to the upper top plate (1) and the upper plate with a pit (3); The horizontal limit plate comprises an upper horizontal limit plate (6) and a lower horizontal limit plate (7), wherein the upper horizontal limit plate (6) and the lower horizontal limit plate (7) are respectively connected to the upper top plate (1) and the upper plate (3) with the pit; Four recesses (10) are formed on each of the upper plate (3) with recesses and the lower plate (4) with recesses. The recessed sides of the upper plate (3) with recesses and the lower plate (4) with recesses are arranged opposite to each other, and the spherical rolling elements (5) are distributed in the centers of the recesses (10).

2. A three-dimensional seismic isolation / vibration isolation device with limit according to claim 1, characterized in that: The upper top plate (1) of the three-dimensional seismic isolation / vibration isolation device with limits and the lower plate (4) with pits are respectively connected to the upper structure and the seismic isolation / vibration isolation device support member, and the upper horizontal limit plate (6), the lower horizontal limit plate (7) and the vertical tensile member (8) are installed after the main body of the seismic isolation / vibration isolation device is installed.

3. A three-dimensional seismic isolation / vibration isolation device with limit according to claim 1, characterized in that: The vertical elastic member (2) is a vertical elastic member made of polyurethane polymer material, a coil spring or a butterfly spring.

4. A three-dimensional seismic isolation / vibration isolation device with limit according to claim 1, characterized in that: The upper top plate (1), the upper plate with the pit (3), the lower plate with the pit (4), the vertical tensile member (8), the upper horizontal limit plate (6) and the lower horizontal limit plate (7) are all made of high-strength steel.

5. A three-dimensional seismic isolation / vibration isolation device with limit according to claim 1, characterized in that: The pit (10) is arc-shaped.

6. A three-dimensional seismic isolation / vibration isolation device with limit according to claim 1, characterized in that: The flexible limiting device (9) is a flexible limiting device made of a polyurethane polymer material.

7. A three-dimensional seismic isolation / vibration isolation device with limit according to claim 1, characterized in that: The deformation capacity of the flexible limiting device (9) is not less than 25 mm.

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