A modular fireproof covering structure for seismic isolation bearings and its construction method

Abstract

This invention discloses a modular fireproof enclosure structure for seismic isolation bearings and its construction method. The structure includes a lower structure, an upper structure, and seismic isolation bearings installed between the lower and upper structures. Multiple splicing modules are arranged circumferentially around the seismic isolation bearings between the upper and lower structures to enclose them. Adjacent splicing modules are detachably connected by plug-in joints. The splicing modules are assembled to form two sets of splicing units, with a sliding contact surface between them. This application uses multiple splicing modules to form an enclosed fireproof enclosure structure for seismic isolation bearings, embedded between the upper and lower structures, to provide fireproof enclosure for the seismic isolation bearings. The number of splicing modules can be selected according to the size of the seismic isolation bearings to form a matching size enclosure structure, adapting to seismic isolation bearings of different sizes. Furthermore, the splicing modules are detachably connected by plug-in joints, facilitating on-site installation, disassembly, and reuse.

Description

Technical Field

[0001] This invention relates to the technical field of seismic isolation bearing installation, and in particular to a modular fireproof covering structure for seismic isolation bearings and its construction method. Background Technology

[0002] Seismic isolation technology involves installing a seismic isolation layer, typically composed of seismic isolation bearings, on a specific floor of a building, usually between the superstructure and the foundation (or substructure), thereby isolating the superstructure from the ground. This technology alters the vibration characteristics of the structural system, extending the natural period and increasing damping, utilizing the large horizontal deformation of the isolation layer to absorb and dissipate most of the seismic energy. This significantly reduces the input of seismic energy to the superstructure, effectively reducing the seismic acceleration response of the superstructure, and consequently reducing shear force and corresponding shear deformation between floors, ultimately achieving the desired seismic protection goal.

[0003] Currently used seismic isolation bearings generally suffer from insufficient fire resistance, making it difficult to meet fire protection requirements during a fire, thus affecting their seismic isolation function. (Refer to...) Figure 1 As shown, the conventional approach is to surround the seismic isolation bearing with fireproof boards and fix them to the main structure with screws. However, since the seismic isolation bearing requires annual inspection and maintenance, this approach has the following significant drawbacks: 1. Complex installation process: Fireproof boards need to be cut and prepared on-site according to the support of different sizes, and then anchored to the concrete structure with steel nails, resulting in low construction efficiency; 2. Difficult and irreversible disassembly: The fireproof board is permanently fixed in the concrete with steel nails and cannot be directly removed. It can only be forcibly removed by destructive means, which will damage the board. 3. High maintenance costs: Each inspection requires damaging the original fireproof board, and reinstallation after maintenance requires repeating the entire process. Annual maintenance results in repeated investment and waste of human, material and financial resources. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a modular fireproof covering structure for seismic isolation bearings that is simple in structure, easy to install and dismantle, and adjustable in size, as well as its construction method.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a modular fireproof covering structure for a seismic isolation bearing, comprising a lower structure, an upper structure, and a seismic isolation bearing installed between the lower structure and the upper structure. Multiple splicing modules are provided along the circumference of the seismic isolation bearing between the upper structure and the lower structure to enclose the seismic isolation bearing. The splicing modules that are adjacent to each other on the left and right or up and down are detachably connected by plugging. The splicing modules are assembled to form two sets of splicing units, and a sliding contact surface is formed between the two sets of splicing units.

[0006] The present invention provides a modular fireproof covering structure for seismic isolation bearings. Furthermore, each splicing unit includes four splicing sidewalls, which are assembled from splicing modules. The four splicing sidewalls are detachably connected end to end by plugging.

[0007] This invention discloses a modular fireproof covering structure for seismic isolation bearings. Further, two adjacent splicing modules are connected by a plug-in structure. The plug-in structure includes a plug-in post fixedly installed on one of the splicing modules and a plug-in groove provided on the other splicing module. The inner wall of the plug-in groove is provided with an outwardly protruding damping structure A, and the plug-in post is provided with an outwardly protruding damping structure B. The damping structures A and B generate resistance to the plug-in post disengaging from the plug-in groove by means of extrusion deformation.

[0008] The present invention discloses a modular fireproof covering structure for a seismic isolation bearing. Further, the damping structure A is arranged circumferentially along the insertion groove and is formed by the outward protrusion of the inner wall of the insertion groove, and its cross-section is an outwardly convex arc structure; the insertion post is provided with an annular groove, the damping structure B is embedded in the annular groove, the damping structure B protrudes out of the annular groove to form an outwardly convex structure, and the damping structure B can undergo elastic deformation when compressed.

[0009] The present invention provides a modular fireproof covering structure for a seismic isolation bearing. Furthermore, the convex structure of the damping structure B is an arc surface.

[0010] The present invention discloses a modular fireproof covering structure for seismic isolation bearings. Furthermore, each splicing unit is provided with a fireproof plate on its outer side. The fireproof plate is attached to the upper or lower structure, and the fireproof plate is connected to the splicing module through a plug-in structure.

[0011] The present invention discloses a modular fireproof covering structure for a seismic isolation bearing. Furthermore, the fireproof board is provided with multiple plug-in posts, and the splicing modules of the fireproof board coverage area are connected to the plug-in posts.

[0012] The present invention provides a modular fireproof covering structure for a seismic isolation bearing. Furthermore, fireproof rock wool is provided between the splicing module and the seismic isolation bearing.

[0013] The present invention discloses a construction method, comprising the following steps: S1. According to the size of the seismic isolation bearing, a splicing sidewall is formed by assembling a corresponding number of splicing modules. S2. The two opposing spliced ​​sidewalls are embedded between the upper and lower structures; S3. Connect the other two splicing side walls to the two already installed splicing side walls by pushing them together to form the lower splicing unit of the enclosure; and assemble them in the same way to form the upper splicing unit; S4. During maintenance, pull the spliced ​​sidewalls horizontally outward to disconnect the connection between the spliced ​​sidewalls, and then remove the spliced ​​sidewalls.

[0014] Furthermore, in the construction method of this invention, fireproof rock wool is installed between the spliced ​​sidewall and the seismic isolation bearing, and a fireproof board is installed on the outside of the spliced ​​sidewall.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. A fireproof enclosure structure for seismic isolation bearings is formed by assembling multiple splicing modules and embedded between the upper and lower structures to fireproof the seismic isolation bearings and improve their fire resistance. 2. It can select the corresponding number of splicing modules according to the size of the seismic isolation bearing to form a splicing and covering structure with matching size, which can adapt to seismic isolation bearings of different sizes and solve the problem of needing to cut and prepare fireproof boards on site according to bearings of different sizes; 3. The splicing modules are assembled to form an enclosed overall structure, which is embedded between the upper and lower structures, making installation and dismantling more convenient. This solves the problem that traditional fireproof boards are permanently fixed in concrete with steel nails, making them impossible to remove directly and requiring destructive methods to forcibly dismantle, which can damage the boards. 4. The splicing modules are detachable and can be connected by plugging, which facilitates on-site installation and disassembly and reuse. This solves the problem of having to destroy the original fireproof board for each maintenance, and having to repeat the whole process after maintenance and annual maintenance, which causes repeated investment and waste of manpower, materials and financial resources.

[0016] The invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram illustrating the background technology of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention; Figure 3 This is a planar schematic diagram of the splicing unit of the present invention; Figure 4 This is a schematic diagram of the mating of the plug-in post and the plug-in slot of the present invention.

[0018] Figure label: 1. Lower structure; 2. Upper structure; 3. Seismic isolation bearing; 4. Splicing module; 5. Fireproof rock wool; 6. Sliding contact surface; 7. Splicing sidewall; 8. Insertion column; 9. Insertion groove; 10. Damping structure A; 11. Damping structure B; 12. Fireproof board; 13. Circular groove. Detailed Implementation

[0019] like Figures 2-4As shown, this invention discloses a modular fireproof covering structure for seismic isolation bearings and its construction method. The structure includes a lower structure 1, an upper structure 2, and a seismic isolation bearing 3 installed between the lower structure 1 and the upper structure 2. In this embodiment, the upper structure 2 and the lower structure 1 are rectangular columns. Multiple splicing modules 4 are arranged around the seismic isolation bearing 3 between the upper structure 2 and the lower structure 1 to enclose the seismic isolation bearing 3. Fireproof rock wool 5 is filled between the splicing modules 4 and the seismic isolation bearing 3. The outer surface of the splicing modules 4 is flush with the outer surface of the upper structure 2 and the lower structure 1. The splicing modules 4, which are flush and adjacent to each other on the left and right and top and bottom, are detachably connected by plugging. In order to ensure that the fireproof covering structure can adapt to the sliding deformation of the seismic isolation bearing 3, the splicing modules 4 are spliced ​​together to form two sets of splicing units, and a sliding contact surface 6 is formed between the two sets of splicing units. The sliding contact surface 6 is formed in such a way that there is no plugging structure between the splicing modules 4, and they are in contact in a planar form. Relative displacement can occur at the contact surface. Preferably, the sliding contact surface 6 is on the same horizontal plane as the sliding surface of the seismic isolation bearing 3, so that the splicing unit deforms together with the seismic isolation bearing 3.

[0020] To facilitate the installation of the splicing module 4, each splicing unit is divided into four splicing side walls 7. The splicing side walls 7 are assembled from the splicing modules 4. The four splicing side walls 7 are detachably connected end to end by plugging. During installation, the splicing modules 4 can be assembled into splicing side walls 7 and then embedded between the upper structure 2 and the lower structure 1 to complete the splicing of the splicing side walls 7. This makes the installation more convenient and also facilitates the assembly of splicing side walls 7 of the corresponding size according to the seismic isolation bearing 3.

[0021] Two adjacent splicing modules 4 are connected by a plug-in structure. The plug-in structure includes a plug-in post 8 fixedly installed on one of the plug-in modules and a plug-in groove 9 on the other plug-in module. The inner wall of the plug-in groove 9 is provided with an outwardly protruding damping structure A10. The damping structure A10 is arranged along the circumference of the plug-in groove 9 and is formed by the outward protrusion of the inner wall of the plug-in groove 9. Its cross-section is an outwardly convex arc structure. The plug-in post 8 is provided with an annular groove 13. The damping structure B11 is embedded in the annular groove 13. The damping structure B11 protrudes from the annular groove 13 to form an outwardly convex structure. The outwardly convex structure is provided with an arc surface, and the damping structure B11 can be elastically deformed when compressed. The magnitude of the resistance is related to the outward convex size of the outwardly convex structure. The damping structure A10 can be made of the same material as the splicing module 4, and the damping structure B11 can be made of materials with elastic deformation such as plastic or hard rubber. During installation, press down on the plug-in post 8 to insert it into the plug-in slot 9. The damping structure B11, by compressing and deforming over the damping structure A10, generates resistance that prevents the plug-in post 8 from detaching from the plug-in slot 9, thus fixing the plug-in post 8 to the plug-in slot 9. During disassembly, pull the plug-in post 8 outward. When the damping structure B11 is subjected to sufficient pulling force, it compresses and deforms against the damping structure A10, allowing the damping structure B11 to pass over the damping structure A10 and releasing the plug-in post 8 from its fixation. Through this scheme, the splicing module 4 can be detachably connected via plug-in, making installation and disassembly more convenient while ensuring the stability of the structural connection.

[0022] A fireproof board 12 is installed on the outside of each splicing unit. The inner side of the fireproof board 12 is attached to the upper structure 2 or the lower structure 1. The fireproof board 12 is provided with multiple plug-in posts 8. The splicing module 4 in the area covered by the fireproof board 12 is provided with corresponding plug-in slots 9. The splicing module 4 is connected to the fireproof board 12 by plugging. The material of the fireproof board 12 can be the same as that of the splicing module 4, or processed from other fireproof enclosure materials. The fireproof board 12 and the splicing module 4 form two fireproof covering structures to ensure the fireproof performance of the seismic isolation support 3. At the same time, the fireproof board 12 covers the outside of the splicing module 4, which can ensure the decorative effect of the covering structure. In addition, the fireproof board 12 further connects multiple splicing modules 4 to ensure the integrity of the splicing module 4 after connection and to provide convenience for subsequent dismantling.

[0023] In addition, when the splicing sidewall 7 formed by the splicing module 4 is insufficient to fill the space between the upper structure 2 and the lower structure 1, fireproof material, such as fireproof rock wool 5, can be filled between the splicing module 4 and the upper structure 2 and / or the lower structure 1.

[0024] The construction method includes the following steps: S1. Select the appropriate number of splicing modules 4 according to the size of the seismic isolation bearing 3, and assemble the splicing modules 4 to form the splicing sidewall 7; wrap the outer periphery of the seismic isolation bearing 3 with fireproof rock wool 5.

[0025] S2. The two opposing splicing sidewalls 7 are embedded between the upper structure 2 and the lower structure 1, so that the outer plane of the splicing sidewall 7 is flush with the outer surface of the upper structure 2 and the lower structure 1.

[0026] S3. Connect the other two splicing side walls 7 to the two already installed splicing side walls 7 by pushing them together to form an enclosed lower splicing unit; and assemble the upper splicing unit in the same way.

[0027] S4. During maintenance, pull the splicing sidewall 7 outward horizontally to disconnect the connection between the splicing sidewalls 7, and then remove the splicing sidewall 7.

[0028] In this application, the fireproof board 12 can be installed after the splicing side wall 7 is installed, or it can be connected to the splicing side wall 7 and installed together with the splicing side wall 7.

[0029] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A modular fireproof covering structure for seismic isolation bearings, comprising a lower structure (1), an upper structure (2), and seismic isolation bearings (3) installed between the lower structure (1) and the upper structure (2), characterized in that, Multiple splicing modules (4) are provided around the seismic isolation bearing (3) between the upper structure (2) and the lower structure (1), which enclose the seismic isolation bearing (3). The splicing modules (4) that are adjacent to each other on the left and right and on the top and bottom are detachably connected by plugging. The splicing module (4) is assembled to form two sets of splicing units, and a sliding contact surface (6) is formed between the two sets of splicing units.

2. The modular fireproof covering structure for seismic isolation bearings according to claim 1, characterized in that, Each splicing unit includes four splicing sidewalls (7), which are assembled from splicing modules (4). The four splicing sidewalls (7) are detachably connected end to end by plugging.

3. The modular fireproof covering structure for seismic isolation bearings according to claim 1, characterized in that, Two adjacent splicing modules (4) are connected by a plug-in structure. The plug-in structure includes a plug-in post (8) fixedly installed on one of the splicing modules (4) and a plug-in groove (9) provided on the other splicing module (4). The inner wall of the plug-in groove (9) is provided with an outwardly protruding damping structure A (10), and the plug-in post (8) is provided with an outwardly protruding damping structure B (11). The damping structure A (10) and the damping structure B (11) generate resistance to the plug-in post (8) disengaging from the plug-in groove (9) by means of extrusion deformation.

4. The modular fireproof covering structure for seismic isolation bearings according to claim 3, characterized in that, The damping structure A (10) is arranged circumferentially along the insertion groove (9) and is formed by the outward protrusion of the inner wall of the insertion groove (9). Its cross-section is an outwardly convex arc structure. The insertion post (8) is provided with an annular groove (13). The damping structure B (11) is embedded in the annular groove (13). The damping structure B (11) protrudes out of the annular groove (13) to form an outwardly convex structure. The damping structure B (11) can undergo elastic deformation when it is squeezed.

5. The modular fireproof covering structure for seismic isolation bearings according to claim 4, characterized in that, The convex structure of the damping structure B(11) is an arc surface.

6. The modular fireproof covering structure for seismic isolation bearings according to claim 3, characterized in that, Each splicing unit is provided with a fireproof board (12) on the outside. The fireproof board (12) is attached to the upper structure (2) or the lower structure (1). The fireproof board (12) is connected to the splicing module (4) through a plug-in structure.

7. A modular fireproof covering structure for seismic isolation bearings according to claim 6, characterized in that, The fireproof board (12) is provided with multiple plug-in posts (8), and the splicing module (4) of the fireproof board (12) coverage area is connected to the plug-in posts (8).

8. The modular fireproof covering structure for seismic isolation bearings according to claim 1, characterized in that, Fireproof rock wool (5) is provided between the splicing module (4) and the seismic isolation support (3).

9. A method for constructing a modular fireproof covering structure for seismic isolation bearings as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. According to the size of the seismic isolation bearing (3), the splicing sidewall (7) is formed by splicing the corresponding number of splicing modules (4); S2. The two opposing splicing sidewalls (7) are fitted between the upper structure (2) and the lower structure (1); S3. The other two splicing side walls (7) are connected to the two splicing side walls (7) that have been installed by pushing them together to form a lower splicing unit that is enclosed; and the upper splicing unit is formed by splicing them together in the same way. S4. During maintenance, pull the splicing sidewall (7) outward horizontally to disconnect the connection between the splicing sidewalls (7) and remove the splicing sidewall (7).

10. The construction method according to claim 9, characterized in that, Fireproof rock wool (5) is installed between the splicing sidewall (7) and the seismic isolation bearing (3), and fireproof board (12) is installed outside the splicing sidewall (7).

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