Modularized assembly type resettable friction sliding shock insulation support system

Abstract

The modular assembly type resettable friction sliding isolation bearing system comprises a bottom plate, a middle layer, a sleeve and a top plate, the upper portion of the bottom plate is detachably connected with the middle layer, the middle of the middle layer is fixedly connected with the sleeve, the sleeve is hollow, and the top end of the sleeve is fixedly connected with the top plate; the edges of the bottom plate and the top plate are fixedly connected with a plurality of connecting lugs with holes. After the earthquake is finished, the top plate and other components can be prompted to quickly and accurately return to the initial position by virtue of the good elastic restoring force; the whole support system adopts modular design, and all parts such as the bottom plate, the middle layer, the sleeve and the top plate can be produced in a standardized manner, so that transportation and storage are facilitated. In the installation process, all the components can be rapidly and accurately assembled together in the modes of detachable connection, welding and the like, the construction period is greatly shortened, and the construction efficiency is improved. And meanwhile, the modular design is also convenient for later maintenance and replacement, and the maintenance cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of seismic isolation bearing technology, and in particular to a modular assembled resettable friction sliding seismic isolation bearing system. Background Technology

[0002] To mitigate earthquake damage to buildings, seismic isolation technology has emerged and been widely applied in engineering practice. Among these, base isolation, which involves placing an isolation layer between the superstructure and the foundation to isolate or dissipate seismic energy, is one of the effective earthquake-resistant methods. Friction-slip bearings, as an important type of base isolation system, have attracted attention due to their relatively simple construction and long isolation period.

[0003] However, many existing friction-slip seismic isolation bearings still have some significant limitations in practical applications. First, insufficient restoring capacity is a common problem. After displacement under seismic loads, many bearings struggle to return to their initial position on their own, resulting in significant residual displacement in the structure. This not only affects the rapid recovery of building functionality after an earthquake but also poses a significant challenge to subsequent repair and reinforcement work, and may even create safety hazards. Second, energy dissipation efficiency needs improvement. Traditional bearings often rely on a single friction mechanism or elastic element for energy dissipation. When facing complex and variable seismic waves, their energy absorption and dissipation capabilities are limited, potentially leading to unsatisfactory seismic isolation effects and an inability to comprehensively and effectively protect the superstructure. Furthermore, the construction and installation methods of traditional bearings also have room for improvement. Many bearing structures are highly integrated, or involve complex on-site construction procedures with high precision requirements, resulting in low production, transportation, and installation efficiency, long construction cycles, and difficulties in later inspection, maintenance, and component replacement, increasing the total life-cycle cost.

[0004] Therefore, there is an urgent need in this field for a new type of seismic isolation bearing system to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to at least address one of the aforementioned technical deficiencies.

[0006] Therefore, one objective of this invention is to propose a modular, assembled, resettable friction sliding seismic isolation bearing system to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0007] To achieve the above objectives, one embodiment of the present invention provides a modular assembled resettable friction sliding seismic isolation bearing system, including a base plate, a middle layer, a sleeve, and a top plate. The middle layer is detachably connected to the top of the base plate, and the sleeve is fixedly connected to the middle of the middle layer. The sleeve is hollow, and the top plate is fixedly connected to the top of the sleeve.

[0008] Several perforated connecting lugs are fixedly connected to the edges of the bottom plate and the top plate;

[0009] The top of the top plate is fixedly connected with several reinforcing strips, and several positioning holes are opened at the edge of the top plate. The ends of the reinforcing strips are fixedly connected to the outer surface of the sleeve.

[0010] An elastic element is fixedly connected to the top of the base plate. The elastic element is C-shaped. An inner part is fixedly connected to the inner side of the elastic element. A connecting post is fixedly connected to the top of the elastic element. Fasteners are threaded onto the outer surface of the connecting post.

[0011] An elastic column is fixedly connected between the top of the base plate and the bottom surface of the middle layer, and the top of the elastic column is embedded in the sleeve.

[0012] Preferably, the bottom plate, middle layer, sleeve, and top plate are made of alloy steel, and the middle layer and sleeve are connected by welding.

[0013] The above technical solution utilizes a modular, prefabricated, resettable friction-sliding seismic isolation bearing system to achieve seismic isolation and reset functions primarily through the coordinated action of multiple components. Under normal conditions, the base plate, middle layer, sleeve, and top plate form a stable structural system. Elastic columns connect the base plate and middle layer, providing initial buffering and support. When subjected to external forces such as earthquakes, the top plate will slip relative to the base plate. At this time, the cooperation between the sleeve and the middle layer, along with the reinforcement of the stiffeners, ensures the overall structural stability and prevents the structure from collapsing during the slippage process.

[0014] During the sliding process, the dual-elastic structure, composed of elastic columns, elastic elements, and internal components, plays a crucial role. The elastic elements are C-shaped and possess a certain elastic deformation capacity, while the internal components are made of arc-shaped elastic metal with a thickness less than that of the elastic elements. When subjected to external forces, both undergo elastic deformation together, absorbing and dissipating seismic energy, thus providing seismic isolation. Simultaneously, this dual-elastic design ensures that after an earthquake, the elastic restoring forces of the elastic columns, elastic elements, and internal components allow components such as the top plate to return to their initial positions, achieving a good reset effect. Connecting lugs are used to connect the entire support system to the building structure, positioning holes facilitate accurate positioning during installation, and connecting columns and fasteners are used to fix and adjust related components.

[0015] Preferably, in any of the above embodiments, the sleeve and the top plate are welded together, the connecting lug and the bottom plate are welded together, and the connecting lug and the top plate are welded together.

[0016] Preferably, in any of the above solutions, the elastic element is made of elastic metal, the inner element is made of elastic metal, and the inner element is arc-shaped.

[0017] Preferably, in any of the above solutions, the thickness of the inner component is less than the thickness of the elastic component, and the inner component is made of an elastic metal material.

[0018] The core design of this device is as follows: It employs a dual-elastic design consisting of elastic components and internal parts. Under the action of external forces such as earthquakes, both components undergo elastic deformation together and work in conjunction with elastic columns to absorb energy. After an earthquake, thanks to its excellent elastic recovery force, it can quickly and accurately return components such as the top slab to their initial positions, effectively avoiding subsequent repair difficulties and safety hazards caused by excessive structural displacement, and greatly improving the speed of functional recovery of the building structure after an earthquake.

[0019] The elastic element is made of C-shaped elastic metal, while the inner element is made of arc-shaped elastic metal with a thickness less than the elastic element. This dual-elastic structure allows the device to effectively absorb and dissipate seismic energy through elastic deformation under external forces of different directions and intensities. Compared to traditional single-elastic seismic isolation devices, the dual-elastic design can more comprehensively cope with complex seismic waves, providing more reliable seismic isolation protection and significantly reducing the degree of damage to building structures caused by earthquakes. The entire support system adopts a modular design, and components such as the base plate, middle layer, sleeve, and top plate can be standardized for production, facilitating transportation and storage. During installation, components can be quickly and accurately assembled using detachable connections and welding, greatly shortening the construction cycle and improving construction efficiency. Simultaneously, the modular design also facilitates later maintenance and replacement, reducing maintenance costs.

[0020] Preferably, in any of the above embodiments, the fastener is a washer-type nut, the elastic post is made of rubber, the elastic post is vulcanized bonded to the base plate, and the elastic post is vulcanized bonded to the bottom surface of the middle layer.

[0021] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows:

[0022] This modular, prefabricated, resettable friction-sliding seismic isolation bearing system employs a dual-elastic design consisting of elastic components and internal parts. Under external forces such as earthquakes, both components undergo elastic deformation together and work in conjunction with elastic columns to absorb energy. After an earthquake, thanks to its excellent elastic recovery force, it enables components such as the top slab to quickly and accurately return to their initial positions, effectively avoiding subsequent repair difficulties and safety hazards caused by excessive structural displacement, and greatly improving the speed of functional recovery of building structures after earthquakes.

[0023] The elastic element is made of C-shaped elastic metal, while the inner element is made of arc-shaped elastic metal with a thickness less than the elastic element. This dual-elastic structure allows the device to effectively absorb and dissipate seismic energy through elastic deformation under external forces of different directions and intensities. Compared to traditional single-elastic seismic isolation devices, the dual-elastic design can more comprehensively cope with complex seismic waves, providing more reliable seismic isolation protection and significantly reducing the degree of damage to building structures caused by earthquakes. The entire support system adopts a modular design, and components such as the base plate, middle layer, sleeve, and top plate can be standardized for production, facilitating transportation and storage. During installation, components can be quickly and accurately assembled using detachable connections and welding, greatly shortening the construction cycle and improving construction efficiency. Simultaneously, the modular design also facilitates later maintenance and replacement, reducing maintenance costs.

[0024] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0026] Figure 1 This is a structural schematic diagram from a first perspective of the present invention;

[0027] Figure 2 This is a structural schematic diagram from a second perspective of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure at the top plate of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the middle layer in this invention.

[0030] In the diagram: 1-bottom plate, 2-middle layer, 3-sleeve, 4-top plate, 5-connecting lug, 6-reinforcing strip, 7-positioning hole, 8-elastic element, 9-inner part, 10-connecting post, 11-fastener, 12-elastic post. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] like Figure 1-4 As shown, this modular assembled resettable friction sliding seismic isolation bearing system includes a base plate 1, a middle layer 2, a sleeve 3, and a top plate 4. The middle layer 2 is detachably connected to the top of the base plate 1. The sleeve 3 is fixedly connected to the middle of the middle layer 2. The sleeve 3 is hollow, and the top plate 4 is fixedly connected to the top of the sleeve 3.

[0034] Several perforated connecting lugs 5 are fixedly connected to the edges of the base plate 1 and the top plate 4;

[0035] Several reinforcing strips 6 are fixedly connected to the top of the top plate 4, and several positioning holes 7 are opened at the edge of the top plate 4. The ends of the reinforcing strips 6 are fixedly connected to the outer surface of the sleeve 3.

[0036] An elastic element 8 is fixedly connected to the top of the base plate 1. The elastic element 8 is C-shaped. An inner part 9 is fixedly connected to the inner side of the elastic element 8. A connecting post 10 is fixedly connected to the top of the elastic element 8. A fastener 11 is threadedly connected to the outer surface of the connecting post 10.

[0037] An elastic column 12 is fixedly connected between the top of the base plate 1 and the bottom of the middle layer 2, and the top of the elastic column 12 is embedded in the sleeve 3.

[0038] Example 1: The base plate 1, middle layer 2, sleeve 3, and top plate 4 are made of alloy steel. The middle layer 2 and sleeve 3 are welded together. The sleeve 3 and top plate 4 are welded together. The connecting lug 5 is welded to the base plate 1, and the connecting lug 5 is welded to the top plate 4. The elastic element 8 is made of elastic metal, and the inner part 9 is also made of elastic metal and is arc-shaped. The thickness of the inner part 9 is less than the thickness of the elastic element 8. The bottom end of the elastic element 8 is riveted to the base plate 1.

[0039] Example 2: This modular, prefabricated, resettable friction sliding seismic isolation bearing system primarily achieves seismic isolation and reset functions through the coordinated action of multiple components. Under normal conditions, the base plate 1, middle layer 2, sleeve 3, and top plate 4 form a stable structural system. The elastic column 12 connects the base plate 1 and middle layer 2, providing initial buffering and support. When subjected to external forces such as earthquakes, the top plate 4 will slide relative to the base plate 1. At this time, the cooperation between the sleeve 3 and the middle layer 2, as well as the reinforcement effect of the stiffener 6, ensures the stability of the overall structure and prevents the structure from collapsing during the sliding process.

[0040] During the sliding process, the dual-elastic structure composed of elastic column 12, elastic element 8, and inner element 9 plays a crucial role. Elastic element 8 is C-shaped and possesses a certain elastic deformation capacity, while inner element 9 is an arc-shaped elastic metal material with a thickness less than elastic element 8. When subjected to external force, both undergo elastic deformation together, absorbing and dissipating seismic energy, thus playing a seismic isolation role. Simultaneously, this dual-elastic design ensures that after an earthquake, the elastic restoring force of elastic column 12, elastic element 8, and inner element 9 can cause components such as the top plate 4 to return to their initial positions, achieving a good reset effect. Connecting lug 5 is used to connect the entire support system to the building structure, positioning holes 7 facilitate accurate positioning during installation, and connecting column 10 and fastener 11 are used to fix and adjust related components.

[0041] The working principle of this invention is as follows:

[0042] Based on the building's design requirements, select appropriate specifications for components such as the base plate 1, middle layer 2, sleeve 3, and top plate 4, ensuring that all components are made of alloy steel and meet strength requirements. Simultaneously, prepare elastic components such as elastic element 8, internal components 9, and elastic column 12.

[0043] The base plate 1 is fixed to the embedded parts of the building foundation, and its stability is ensured by bolts or other connection methods. Then, the middle layer 2 is detachably connected above the base plate 1. Elastic columns 12 are installed between the top of the base plate 1 and the bottom of the middle layer 2, and fixed using vulcanized adhesive, so that the top of the elastic column 12 is embedded in the sleeve 3. The sleeve 3 is fixed to the middle of the middle layer 2, and a welding method is used to ensure a firm connection. The top plate 4 is then welded to the top of the sleeve 3. Simultaneously, several perforated connecting lugs 5 are welded to the edges of the base plate 1 and the top plate 4 for subsequent connection to the building structure.

[0044] Install the elastic element 8 on the top of the base plate 1, fix the inner part 9 inside the elastic element 8, then fix the connecting column 10 on the top of the elastic element 8, and tighten the fastener 11 (with washer nut) for adjustment and fixation. Fix several reinforcing strips 6 on the top of the top plate 4, and weld the ends of the reinforcing strips 6 to the outer surface of the sleeve 3. At the same time, open several positioning holes 7 at the edge of the top plate 4.

[0045] The entire support system is connected to the building structure via connecting lug 5, and precise positioning is achieved using positioning holes 7. After installation, the support system is tested to check whether the connections of each component are secure and whether the elasticity of the elastic components is normal.

[0046] During subsequent use, the building experienced a moderate earthquake. During the earthquake, the top slab 4 slipped relative to the bottom slab 1, and the elastic columns 12, elastic elements 8, and internal components 9 underwent elastic deformation, absorbing a significant amount of seismic energy and reducing the impact on the building structure. After the earthquake, the elastic restoring force of the elastic columns 12, elastic elements 8, and internal components 9 quickly returned the top slab 4 and other components to their initial positions.

[0047] Compared with the prior art, the present invention has the following advantages:

[0048] This modular, prefabricated, resettable friction sliding seismic isolation bearing system employs a dual-elastic design consisting of elastic element 8 and internal element 9. Under the influence of external forces such as earthquakes, both elements undergo elastic deformation together and work in conjunction with elastic column 12 to absorb energy. After an earthquake, thanks to its excellent elastic recovery force, it can quickly and accurately return components such as the top slab 4 to their initial positions, effectively avoiding subsequent repair difficulties and safety hazards caused by excessive structural displacement, and greatly improving the speed of functional recovery of the building structure after an earthquake.

[0049] The elastic element 8 is made of C-shaped elastic metal, while the inner element 9 is made of arc-shaped elastic metal with a thickness less than that of the elastic element 8. This dual-elastic structure allows the device to effectively absorb and dissipate seismic energy through elastic deformation under external forces of different directions and intensities. Compared to traditional single-elastic seismic isolation devices, the dual-elastic design can more comprehensively cope with complex seismic waves, providing more reliable seismic isolation protection and significantly reducing the degree of damage to building structures caused by earthquakes. The entire support system adopts a modular design, and components such as the base plate 1, middle layer 2, sleeve 3, and top plate 4 can be produced in a standardized manner, facilitating transportation and storage. During installation, components can be quickly and accurately assembled using detachable connections and welding, greatly shortening the construction cycle and improving construction efficiency. Simultaneously, the modular design also facilitates later maintenance and replacement, reducing maintenance costs.

Claims

1. A modular, assembled, resettable friction sliding seismic isolation bearing system, characterized in that, Includes a base plate (1), a middle layer (2), a sleeve (3), and a top plate (4). The middle layer (2) is detachably connected to the top of the base plate (1). The sleeve (3) is fixedly connected to the middle part of the middle layer (2). The sleeve (3) is hollow. The top plate (4) is fixedly connected to the top of the sleeve (3). Several perforated connecting lugs (5) are fixedly connected to the edges of the bottom plate (1) and the top plate (4); The top of the top plate (4) is fixedly connected with several reinforcing strips (6), and several positioning holes (7) are opened at the edge of the top plate (4). The ends of the reinforcing strips (6) are fixedly connected to the outer surface of the sleeve (3). The top of the base plate (1) is fixedly connected to an elastic element (8), which is C-shaped. An inner part (9) is fixedly connected to the inner side of the elastic element (8), and a connecting post (10) is fixedly connected to the top of the elastic element (8). A fastener (11) is threaded onto the outer surface of the connecting post (10). An elastic column (12) is fixedly connected between the top of the base plate (1) and the bottom of the middle layer (2), and the top of the elastic column (12) is embedded in the sleeve (3).

2. The modular, assembled, resettable friction sliding seismic isolation bearing system as described in claim 1, characterized in that: The base plate (1), middle layer (2), sleeve (3) and top plate (4) are made of alloy steel, and the middle layer (2) and sleeve (3) are connected by welding.

3. The modular assembled resettable friction sliding seismic isolation bearing system as described in claim 2, characterized in that: The sleeve (3) is welded to the top plate (4), the connecting lug (5) is welded to the bottom plate (1), and the connecting lug (5) is welded to the top plate (4).

4. The modular, assembled, resettable friction sliding seismic isolation bearing system as described in claim 3, characterized in that: The elastic element (8) is made of elastic metal, the inner element (9) is made of elastic metal, and the inner element (9) is arc-shaped.

5. The modular assembled resettable friction sliding seismic isolation bearing system as described in claim 4, characterized in that: The thickness of the inner part (9) is less than the thickness of the elastic part (8), and the inner part (9) is made of elastic metal.

6. The modular, assembled, resettable friction sliding seismic isolation bearing system as described in claim 5, characterized in that: The fastener (11) is a washer nut, the elastic column (12) is made of rubber, the elastic column (12) is vulcanized bonded to the base plate (1), and the elastic column (12) is vulcanized bonded to the bottom surface of the middle layer (2).

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