A bottom self-resetting friction energy dissipation isolation support suitable for fish belly support

Abstract

The application relates to a bottom self-resetting friction energy-dissipation isolation support suitable for fish-belly type support, which is provided with a second connecting device at the bottom of a cast steel base plate, a first connecting device below the second connecting device, a top plate and a second side plate below the top plate in the second connecting device, a bottom plate and a first side plate above the bottom plate in the first connecting device, a second component in the center of the bottom plate, a first component between the second component and the bottom of the top plate of the second connecting device, a self-resetting group sleeved on the second component, and a first spherical recess with an inner recess in the center of the top of the cast steel base plate. The application is connected by full bolts, and is convenient to install and disassemble. The isolation support disconnects a dome structure from a foundation, forms a flexible isolation layer, effectively reduces the impact and vibration transmission of the dome structure caused by the earthquake, dissipates the earthquake energy through the built-in friction plate, and can realize the self-resetting function of the support under the action of the earthquake, thereby reducing the influence of the earthquake on the structure.

Description

Technical Field

[0001] This invention relates to a support, and more particularly to a bottom self-resetting friction energy dissipation support suitable for fish-belly type supports, belonging to the field of dome structure technology. Background Technology

[0002] With the rapid development of modern building technology, dome structures have been widely used in large-scale building projects such as stadiums, exhibition centers, and conference centers. However, traditional dome structures and supports are usually rigidly connected, making the upper and lower supports of the dome structure a complete unit. While this design can provide a certain degree of strength and stability, it also limits the degree of freedom of the structure.

[0003] In particular, rigidly connected dome structures face certain challenges during natural disasters such as earthquakes. Traditional rigid connections cannot effectively absorb and disperse seismic loads, leading to increased structural vibration and deformation, which may result in structural failure.

[0004] To overcome these problems, the field of architectural engineering has been continuously exploring and introducing new structural design concepts and technologies in recent years. One of these is the use of flexible connections and seismic isolation bearing technology. Flexible connections can make the upper and lower supports of the dome structure relatively independent, removing the limitations of the original rigid connections and giving the structure greater freedom. Seismic isolation bearing technology can sever the rigid connection between the structure and the foundation, thereby reducing the transmission of seismic loads and improving the seismic resistance of the dome structure.

[0005] For the impact of seismic loads on dome structures, seismic isolation bearing technology is an effective seismic vibration reduction measure. Dome structures often have characteristics such as large spans, lightweight, and curved shapes, making them face significant challenges during earthquakes. Seismic isolation bearing technology, by installing seismic isolation bearings between the structure and the foundation, seizes the rigid connection between the structure and the foundation, reducing the transmission of seismic loads to the structure.

[0006] Several issues currently exist regarding seismic isolation bearings for dome structures, including poor assemblability, which increases construction difficulty. Furthermore, the costs of subsequent maintenance and repair are high. Additionally, the safety and effectiveness of these bearings are difficult to guarantee. Therefore, in practical applications, these factors need to be fully considered, and solutions need to be found to improve the assemblability of seismic isolation bearings, reduce maintenance costs, and ensure their safety and effectiveness. This may include optimized design, improved materials and processes, and enhanced monitoring and evaluation measures. Through continuous research and development, the performance and reliability of seismic isolation bearings for dome structures can be further improved. Summary of the Invention

[0007] To address the aforementioned technical problems, this invention provides a bottom self-resetting friction energy dissipation spacer suitable for fish-belly type supports. The purpose is to reduce the vibration and deformation of dome structures under seismic action, thereby improving the overall seismic resistance of the dome structure, enhancing its stability and reliability, reducing the risk of structural collapse, and simultaneously possessing the ability to automatically return to its original position or state after an earthquake, thus having a recovery function.

[0008] To achieve the above objectives, the present invention provides a bottom self-resetting friction energy dissipation support suitable for fish-belly type supports. A second connecting device is provided at the bottom of the cast steel pad, and a first connecting device is provided below the second connecting device. The second connecting device includes a top plate and a second side plate provided below the top plate. The first connecting device includes a bottom plate and a first side plate provided above the bottom plate. A second component is provided at the center of the bottom plate. A first component is provided between the second component and the bottom of the top plate of the second connecting device. A self-resetting assembly is fitted on the second component. A recessed first spherical groove is provided at the center of the top of the cast steel pad.

[0009] A friction plate is provided between the cast steel pad and the top plate of the second connecting device. The cast steel pad and the second connecting device are connected by several first high-strength bolt pairs. The cast steel pad is square, and the first spherical groove of the cast steel pad is connected to the upper fish belly support by equal-strength butt welding.

[0010] The top plate of the second connecting device is square, and the side length of the top plate of the second connecting device is the same as the side length of the cast steel pad. The first high-strength bolt pair is located on the inner side of the second side plate. There are four second side plates below the top plate. The second side plates are located on the inner side of the first side plates. Limiting rod holes are provided on two opposing first side plates and two opposing second side plates.

[0011] The base plate of the first connecting device is square, and the first side plate above the base plate consists of four pieces. On the base plate outside the first side plate, there is a threaded rod end that fixes the first connecting device to the concrete below the first connecting device.

[0012] A friction plate is provided between the base plate and the second component.

[0013] The second component is inverted T-shaped, with a recessed second spherical groove at the top center.

[0014] The radius of the second spherical groove is greater than the radius of the first spherical groove.

[0015] A friction plate is provided between the top surface of the first component and the bottom of the top plate of the second connecting device, and a friction plate is provided between the bottom surface of the first component and the second spherical groove of the second component. The top surface of the first component is square, and the lower part of the first component is spherical.

[0016] The self-resetting assembly consists of a stacked disc spring and a limiting rod.

[0017] The limiting rod passes through the second side plate, the first side plate, the stacked disc spring, and the second component.

[0018] Advantages and effects of this invention: This invention uses a fully bolted connection, which facilitates installation and disassembly. This seismic isolation bearing isolates the dome structure from the foundation, forming a flexible isolation layer, effectively reducing the impact and vibration transmission of earthquakes on the dome structure. It dissipates seismic energy through built-in friction plates, and the bearing can achieve a self-resetting function during earthquakes, reducing the impact of earthquakes on the structure. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the present invention;

[0020] Figure 2 This is a top view of the first connecting device of the present invention;

[0021] Figure 3 This is a side view of the first connecting device of the present invention;

[0022] Figure 4 This is a top view of the second connecting device of the present invention;

[0023] Figure 5 This is a side view of the second connecting device of the present invention;

[0024] Figure 6 This is a top view of the cast steel pad of the present invention;

[0025] Figure 7 This is a side view of the cast steel pad of the present invention;

[0026] Figure 8 This is a front view of the second component of the present invention;

[0027] Figure 9 This is a top view of the second component of the present invention;

[0028] Figure 10 This is a top view of the first component of the present invention;

[0029] Figure 11 This is a side view of the first component.

[0030] In the diagram: 1. Cast steel pad; 2. Second connecting device; 21. Top plate; 22. Second side plate; 3. First component; 31. Second spherical groove; 4. Second component; 5. First connecting device; 51. Bottom plate; 52. First side plate; 6. Self-resetting assembly; 61. Limiting rod; 62. Disc spring; 7. Friction plate; 8. First high-strength bolt pair; 9. Lead screw; 10. Upper fish-belly type support; 11. First spherical groove; 12. Concrete. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] As shown in the figure, the present invention provides a bottom self-resetting friction energy dissipation support suitable for fish-belly type support. A second connecting device 2 is provided at the bottom of the cast steel pad 1, and a first connecting device 5 is provided below the second connecting device. The second connecting device 2 includes a top plate 21 and a second side plate 22 provided below the top plate 21. The first connecting device 5 includes a bottom plate 51 and a first side plate 52 provided above the bottom plate 51. A second component 4 is provided at the center of the top surface of the bottom plate 51. A first component 3 is provided between the second component 4 and the bottom of the top plate 21 of the second connecting device 2. A self-resetting assembly 6 is fitted on the second component 4. A recessed first spherical groove 11 is provided at the center of the top of the cast steel pad 1.

[0033] A friction plate 7 is provided between the cast steel pad 1 and the top plate 21 of the second connecting device 2. The cast steel pad 1 and the second connecting device 2 are connected by a number of first high-strength bolt pairs 8. The cast steel pad 1 is square. The first spherical groove 11 of the cast steel pad 1 is connected to the upper fish belly support 10 by equal strength butt welding. The upper fish belly support 10 is welded to the first spherical groove 11 through a sphere.

[0034] The top plate 21 of the second connecting device 2 is square, and the side length of the top plate 21 of the second connecting device 2 is the same as the side length of the cast steel pad 1. The first high-strength bolt pair 8 is located on the inner side of the second side plate 22. There are four second side plates 22 below the top plate 21. The second side plates 22 are located on the inner side of the first side plate 52. Limiting rod holes are provided on the two opposing first side plates 52 and the two opposing second side plates 22.

[0035] The base plate 51 of the first connecting device 5 is square, and the first side plate 52 above the base plate 51 consists of four pieces. One end of the threaded rod 9 that fixes the first connecting device 5 to the concrete below the first connecting device 5 is provided on the base plate 51 outside the first side plate 52. The other end of the threaded rod 9 is built into the precast concrete 12.

[0036] A friction plate 7 is provided between the base plate 51 and the second component 4.

[0037] The second component 4 is inverted T-shaped, and the top center of the second component 4 is a recessed second spherical groove 31.

[0038] The radius of the second spherical groove 31 is greater than the radius of the first spherical groove 11.

[0039] A friction plate 7 is provided between the top surface of the first component 3 and the bottom of the top plate 21 of the second connecting device 2, and an arc-shaped friction plate 7 is provided between the bottom surface of the first component 3 and the second spherical groove 31 of the second component 4. The top surface of the first component 3 is square, and the lower part of the first component 3 is spherical.

[0040] The self-resetting assembly 6 is composed of a stacked disc spring 62 and a limiting rod 61.

[0041] The limiting rod 61 passes through the second side plate 22, the first side plate 52, the stacked disc spring 62, and the second component 4 and is connected.

[0042] The friction plate is made of SMA metal.

[0043] Working principle of the invention:

[0044] First, the first connecting device 5 needs to be connected to the built-in threaded rod of the precast concrete. Then, the second side plate 22, the first side plate 52, the stacked disc spring 62, and the second component 4 are connected by a limiting rod. Next, the cast steel pad is connected to the second connecting component by a high-strength bolt pair, and the cast steel pad 1 is welded to the fish-belly-shaped support with equal strength. In the dome structure, friction plates are built into each component. During an earthquake, sliding energy dissipates between the components. At the same time, due to the presence of the self-resetting group 6, after an earthquake, the self-resetting bottom friction energy dissipation seismic isolation spherical bearing will restore each fish-belly-shaped support to its state before the earthquake. All components are connected by bolts, which facilitates installation and disassembly in the project, reduces construction difficulty, and simplifies the construction process. At the same time, the self-resetting bottom friction energy dissipation seismic isolation spherical bearing improves the overall strength, stability, and reliability of the dome structure.

[0045] Under seismic loads, the fish-belly braced components undergo lateral movement, compressing the disc springs on one side and storing energy during this process. After the earthquake, the disc springs release the stored energy and, together with other supports, restore the entire structure to its original state. This method effectively mitigates earthquake damage to fish-belly braced dome structures and improves their seismic resistance.

Claims

1. A bottom self-resetting friction energy dissipation spacer suitable for fish-belly type supports, characterized in that... The cast steel pad (1) has a second connecting device (2) at its bottom and a first connecting device (5) below it. The second connecting device (2) includes a top plate (21) and a second side plate (22) located below the top plate (21). The first connecting device (5) includes a bottom plate (51) and a first side plate (52) located above the bottom plate (51). A second component (4) is located at the center of the bottom plate (51). A first component (3) is located between the second component (4) and the bottom of the top plate (21) of the second connecting device (2). A self-resetting assembly (6) is fitted on the second component (4). The cast steel pad (1) has a recessed first spherical groove at the center of its top. (1) is square, the first spherical groove of the cast steel pad (1) is connected to the upper fish belly support by equal strength butt welding, the cast steel pad (1) and the second connecting device (2) are connected by several first high-strength bolt pairs (8); the second component (4) is inverted T-shaped, the top center of the second component (4) is a recessed second spherical groove, the radius of the second spherical groove is greater than the radius of the first spherical groove; the self-resetting group (6) is composed of a stacked disc spring and a limiting rod, the limiting rod passes through the second side plate (22), the first side plate (52), the stacked disc spring and the second component (4), and stacked disc springs are provided on both sides of the second side plate (22).

2. The bottom self-resetting friction energy dissipation spacer for fish-belly type support according to claim 1, characterized in that... A friction plate (7) is provided between the cast steel pad (1) and the top plate (21) of the second connecting device (2).

3. A bottom self-resetting friction energy dissipation spacer suitable for fish-belly type supports according to claim 2, characterized in that... The top plate (21) of the second connecting device (2) is square. The side length of the top plate (21) of the second connecting device (2) is the same as the side length of the cast steel pad (1). The first high-strength bolt pair (8) is located inside the second side plate (22). There are four second side plates (22) below the top plate (21). The second side plates (22) are located inside the first side plate (52). Limiting rod holes are provided on the two opposing first side plates (52) and the two opposing second side plates (22).

4. A bottom self-resetting friction energy dissipation spacer suitable for fish-belly type supports according to claim 1, characterized in that... The base plate (51) of the first connecting device (5) is square, and the first side plate (52) above the base plate (51) consists of four pieces. On the base plate (51) outside the first side plate (52), there is a threaded rod (9) that fixes the first connecting device (5) to the concrete below the first connecting device (5).

5. A bottom self-resetting friction energy dissipation spacer suitable for fish-belly type supports according to claim 1, characterized in that... A friction plate is provided between the base plate (51) and the second component (4).

6. A bottom self-resetting friction energy dissipation spacer suitable for fish-belly type supports according to claim 1, characterized in that... A friction plate is provided between the top surface of the first component (3) and the bottom of the top plate (21) of the second connecting device (2), and a friction plate is provided between the bottom surface of the first component (3) and the second spherical groove of the second component (4). The top surface of the first component (3) is square, and the lower part of the first component (3) is spherical.

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