Shock-absorbing anti-falling beam support

Abstract

This invention provides a seismic isolation and anti-fall beam support, comprising a seismic isolation support body, wherein the seismic isolation support body includes circular stiffening steel plates at both upper and lower ends; an outer frame is fixedly connected to the upper end face of the circular stiffening steel plates. A metal washer is fixedly connected to the upper end of the outer frame, and the upper end face of the metal washer has a movable groove for a positioning bolt to pass through. A serrated edge is fixedly connected to the inner wall of the movable groove, which is used to restrict the positioning bolt. The movable groove designed in this invention provides a certain buffer space for the positioning bolt, dispersing the tensile force transmitted from the seismic isolation support to the positioning bolt, thereby better connecting the seismic isolation support and the positioning bolt and improving the service life of the seismic isolation support.

Description

Technical Field

[0001] This invention relates to the technical field of anti-fall beams, and more specifically to a vibration-damping and anti-fall beam support. Background Technology

[0002] Existing seismic isolation and anti-fall beam supports are fixed with bolts, which are relatively tight. However, if the supports are fixed too tightly, the rubber and lead core structures within the supports will deform under the influence of seismic waves, generating a strong tensile force. This causes the rubber and lead core structures to tilt and deform in all directions. Over time, this can lead to the supports slowly pulling the bolts out of the lower pier, resulting in a loose connection between the bolts and the lower pier. This can cause cracks to appear in the concrete around the lower pier and the bolts, leading to the bolts gradually wearing down and loosening.

[0003] Specifically, the existing seismic isolation and anti-fall beam bearings still have the following defects;

[0004] (1) The existing vibration reduction and isolation beam support is relatively firmly fixed, and there is no good buffer space between it and the bolt. As a result, the bolt absorbs all the tension on the vibration reduction and isolation beam support, which increases the strength of the bolt. Over time, this will affect the performance of the vibration reduction and isolation beam support, and the bolt may also loosen.

[0005] (2) The existing seismic isolation and anti-fall beam support does not have an auxiliary seismic isolation structure, which cannot distribute the force on the seismic isolation and anti-fall beam support, resulting in a shortened service life of the seismic isolation and anti-fall beam support. Summary of the Invention

[0006] This invention provides a seismic isolation and anti-fall beam support, which can effectively solve the above-mentioned problems.

[0007] This invention is implemented as follows:

[0008] A seismic isolation and anti-fall beam support includes a seismic isolation support body, wherein the seismic isolation support body includes circular stiffening steel plates at the upper and lower ends.

[0009] An outer frame is fixed to the upper end face of a circular stiffening steel plate; a metal washer is fixed to the upper end of the outer frame, and a movable groove for a positioning bolt to pass through is opened on the upper end face of the metal washer; a serrated edge is fixed to the inner wall of the movable groove, and the serrated edge is used to limit the positioning bolt.

[0010] A fixing block is fixed to the inner wall of the outer frame; a high-strength spring for buffering the positioning bolt is fixed to the front end of the fixing block, and an arc-shaped threaded plate is fixed to one end of the high-strength spring; an auxiliary vibration reduction and isolation structure for distributing the force on the vibration reduction and isolation bearing body is included between the two circular stiffening steel plates.

[0011] The auxiliary vibration reduction and isolation structure includes a first block and a second block, which are welded to two circular stiffening steel plates. A spherical limiting groove is provided in the middle of the first block and the second block. A sphere is movably installed inside the spherical limiting groove, and a deformable lead-core rubber rod is fixed between the two spheres. A rubber traction belt is fixed between adjacent first blocks and second blocks.

[0012] As a further improvement, a separation plate is provided inside the outer frame, and concrete is poured between the outer frame and the separation plate, with the concrete being separated by the separation plate.

[0013] As a further improvement, the outer frame is further provided with a partition inside, which is used to divide the outer frame into equal parts.

[0014] As a further improvement, an embedded part is provided at the lower part of the outer frame where it contacts the circular stiffening steel plate. The embedded part is embedded in the steel reinforcement cage and welded to the steel reinforcement cage. Both sides of the embedded part are provided with inlet ports for the flow of concrete. A threaded pipe fitting, which is welded or integrally formed, is fixed inside the embedded part and is screwed to the positioning bolt.

[0015] As a further improvement, the number of movable slots is several sets, which are used to provide movable space for the positioning bolts.

[0016] As a further improvement, the sphere is made of metal.

[0017] The beneficial effects of this invention are:

[0018] (1) The serrated edge contacts the positioning bolt and increases the friction between the vibration damping and isolation bearing and the positioning bolt. At the same time, when the vibration damping and isolation bearing is deformed by force, the connection position between the vibration damping and isolation bearing and the positioning bolt will not bear a large force. The movable groove can give the positioning bolt a certain buffer space, which can reduce the tension transmitted from the vibration damping and isolation bearing to the positioning bolt, thereby better connecting the vibration damping and isolation bearing and the positioning bolt and improving the service life of the vibration damping and isolation bearing.

[0019] (2) The arc-shaped threaded plate is screwed to the positioning bolt, and when the positioning bolt is under force, the high-strength spring connected to the arc-shaped threaded plate can play a buffering role, so that the positioning bolt can better fix the vibration damping support.

[0020] (3) When the seismic isolation bearing is subjected to force and deforms and sways left and right, the structure on the first block and the second block will also deform and sway accordingly. The lead core rubber rod on the first block and the second block has the same structure as the seismic isolation bearing body. The lead core rubber rod is installed in the spherical limiting groove in the first block and the second block by embedding the ball. The spherical limiting groove wraps the ball but prevents it from falling off, ensuring that the lead core rubber rod can sway with the seismic isolation bearing under the cooperation of the ball and the spherical limiting groove, thereby assisting and improving the use effect of the seismic isolation bearing. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is the front view of the present invention.

[0023] Figure 2 This is a structural schematic diagram of the seismic isolation bearing body and embedded parts of the present invention.

[0024] Figure 3 This is a top view of the outer frame of the present invention.

[0025] Figure 4 This is a plan view of the outer frame of the present invention.

[0026] Figure 5 This is a top view of the arc-shaped threaded plate of the present invention.

[0027] Figure 6 This is a schematic diagram of the auxiliary vibration reduction and isolation structure of the present invention.

[0028] Explanation of icon numbers:

[0029] 1. Vibration damping and isolation bearing body; 1-0. Outer frame; 1-1. Metal gasket; 1-2. Movable groove; 1-3. Positioning bolt; 1-4. Serrated edge; 1-5. Fixing block; 1-6. High-strength spring; 1-7. Arc-shaped threaded plate; 1-8. Concrete; 1-9. Partition plate; 1-10. Separation plate;

[0030] 2. Auxiliary vibration damping and isolation structure; 2-0. First block; 2-1. Lead-core rubber rod; 2-2. Sphere; 2-3. Second block; 2-4. Spherical limiting groove; 2-5. Rubber traction belt;

[0031] 3. Embedded parts; 3-0. Input port; 3-1. Threaded pipe fittings. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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 a part of the embodiments of the present invention, not all of them. 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. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. 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.

[0033] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] Reference Figure 1 As shown, a seismic isolation and anti-fall beam support includes a seismic isolation support body 1. The seismic isolation support body 1 includes circular stiffening steel plates at both the upper and lower ends. The seismic isolation support body 1 is a lead-core seismic isolation support, which is composed of an upper connecting plate, an upper sealing plate, a lead core, multiple layers of rubber, a protective rubber layer, a lower connecting plate, a lower sealing plate, and the aforementioned circular stiffening steel plates. The circular stiffening steel plates are used to support the weight and horizontal displacement of the building.

[0035] Preferably, the circular stiffening steel plate in the seismic isolation bearing serves as the stiffening material, altering the overall relatively low vertical stiffness. This allows the seismic isolation bearing to both reduce horizontal seismic forces and withstand larger vertical loads. Since rubber, as an elastic body, has insufficient energy dissipation capacity, a lead core is incorporated into the seismic isolation bearing. The lead-core seismic isolation bearing can bear the vertical load of the entire superstructure, extending the structural period, and also provides a certain degree of damping, resulting in a redistribution of seismic forces in the substructure, i.e., the piers and abutments. The displacement of the isolation layer is also limited, achieving excellent seismic isolation. Simultaneously, the lead-core seismic isolation bearing possesses a certain initial horizontal stiffness, capable of resisting both horizontal and braking loads.

[0036] An outer frame 1-0 is fixed to the upper end face of a circular stiffening steel plate. A metal washer 1-1, either welded or integrally formed, is fixed to the upper end of the outer frame 1-0. This metal washer 1-1 contacts and restricts the bolt cap on the positioning bolt 1-3. The upper surface of the metal washer 1-1 also has anti-slip textures to increase the friction between the bolt cap and the metal washer 1-1. A movable groove 1-2 is formed on the upper end face of the metal washer 1-1 for the movable bolt 1-3 to pass through. Serrated edges 1-4, either welded or integrally formed, are fixed to the inner walls of the movable groove 1-2 to restrict the positioning bolt 1-3.

[0037] Specifically, the movable groove 1-2 is provided with a serrated edge 1-4, which contacts the positioning bolt 1-3. When the seismic isolation bearing is under stress, the serrated edge 1-4 can increase the friction between the seismic isolation bearing and the positioning bolt 1-3, causing the positioning bolt 1-3 to move slowly. This prevents the seismic isolation bearing from failing to achieve its vibration isolation effect due to excessive movement of the positioning bolt 1-3 during seismic motion. At this time, the seismic isolation bearing moves slowly through the movable groove 1-2, with a limited range of motion, changing the original installation distance and reducing the force on the bolt. This prevents cracks from forming between the positioning bolt 1-3 and the lower pier due to the tensile force on the seismic isolation bearing, thus avoiding overall loosening of the seismic isolation bearing. The movable groove 1-2 is also designed to prevent excessive tensile force on the positioning bolt 1-3 when the seismic isolation bearing is subjected to excessive force and deforms by lateral swaying. As mentioned above, to prevent cracks from appearing between the positioning bolt 1-3 and the lower pier, and to prevent the positioning bolt 1-3 from being pulled out by a large pulling force, the movable groove 1-2 is designed to decompose and differentiate the force on the positioning bolt 1-3, improve the connection effect between the positioning bolt 1-3 and the lower pier, and at the same time reduce the strength of the positioning bolt 1-3.

[0038] A fixing block 1-5 is fixed to the inner wall of the outer frame 1-0. A high-strength spring 1-6 for buffering the positioning bolt 1-3 is fixed to the front end of the fixing block 1-5, and an arc-shaped threaded plate 1-7 is fixed to one end of the high-strength spring 1-6.

[0039] Specifically, the arc-shaped threaded plates 1-7 on the two sets of high-strength springs 1-6 are screwed to the positioning bolts 1-3. The force generated during an earthquake will cause the positioning bolts 1-3 to shake, while the arc-shaped threaded plates 1-7 can effectively limit the positioning bolts 1-3. The high-strength springs 1-6 are used to relieve the force on the positioning bolts 1-3. The elastic force of the high-strength springs 1-6 interacts with the force on the positioning bolts 1-3. The interaction forces must be generated and disappear simultaneously, thereby reducing the force on the positioning bolts 1-3.

[0040] Between the two circular stiffening steel plates is an auxiliary seismic isolation structure 2 for distributing the force on the seismic isolation bearing body 1;

[0041] The auxiliary seismic isolation structure 2 includes a first block 2-0 and a second block 2-3, which are welded to two circular stiffening steel plates. A spherical limiting groove 2-4 is provided in the middle of each of the first block 2-0 and the second block 2-3. A sphere 2-2 is movably installed inside the spherical limiting groove 2-4, protruding one to two mm from the spherical limiting groove 2-4. The spherical limiting groove 2-4 is slightly larger than the sphere 2-2, allowing it to move freely. A deformable lead-core rubber rod 2-1 is fixed between the two spheres 2-2. A rubber traction belt 2-5 is fixed between each adjacent first block 2-0 and second block 2-3. This rubber traction belt 2-5 can limit the deformation angle of the lead core and other structures in the seismic isolation bearing, preventing excessive deformation angles that could affect the effectiveness of the seismic isolation bearing.

[0042] Specifically, the general structure of the lead-core rubber rod 2-1 is the same as that of the seismic isolation bearing body 1. During shear deformation of the multi-layered rubber bearing, the lead core absorbs energy through plastic deformation. After an earthquake, the lead core undergoes dynamic recovery and recrystallization, and the shear tension of the rubber further helps the building automatically return to its original position. Depending on the requirements of different lead cores and bridges, seismic isolation bearings can have different layered structures, manufacturing processes, and formulation designs to meet the required performance requirements for vertical stiffness, lateral deformation, damping, durability, and overturning resistance. When the seismic isolation bearing is subjected to stress and deformation, the lead-core rubber rod 2-1 can assist the seismic isolation bearing, dispersing the forces acting on it and improving the overall seismic isolation effect of the bearing structure.

[0043] A separation plate 1-10 is provided inside the outer frame 1-0. Concrete 1-8 is poured between the outer frame 1-0 and the separation plate 1-10, and the concrete 1-8 is separated by the separation plate 1-10. The separation plate 1-10 isolates the concrete 1-8, ensuring the normal use of structures such as the high-strength spring 1-6. The separation plate 1-10 is sleeved with the positioning bolt 1-3 and welded to the inside of the outer frame 1-0.

[0044] The outer frame 1-0 is also provided with a partition 1-9 inside, which is used to divide the outer frame 1-0 into equal parts. The partition 1-9 is installed through and welded to the separation plate 1-10, and the other end of the partition 1-9 is welded to the metal gasket 1-1.

[0045] Below the outer frame 1-0, at the position where it contacts the circular stiffening steel plate, there is an embedded part 3. The embedded part 3 is made of metal and is embedded in the steel reinforcement cage. The embedded part 3 is welded to the steel reinforcement cage. Both sides of the embedded part 3 have inlet ports 3-0 for the flow of concrete 1-8. The embedded part 3 has a threaded pipe fitting 3-1 fixed inside by welding or integral molding. The threaded pipe fitting 3-1 is screwed to the positioning bolt 1-3.

[0046] Preferably, the embedded part 3 is interlocked with the outer frame 1-0, with the outer frame 1-0 being slightly larger than the embedded part 3, allowing the embedded part 3 to be spliced ​​and combined with the outer frame 1-0. Then, by pouring concrete 1-8, the embedded part 3 is fixed to the outer frame 1-0. The embedded part 3 is welded to the reinforcing steel frame and is 2-3mm higher than the level of the dried concrete 1-8 to prevent the concrete 1-8 from being poured into the threaded pipe fitting 3-1. Furthermore, a sleeve pre-inserted into the threaded pipe fitting 3-1 to prevent concrete from entering further ensures that the concrete 1-8 will not enter the threaded pipe fitting 3-1.

[0047] There are several sets of movable slots 1-2, which are used to provide movable space for positioning bolts 1-3.

[0048] Sphere 2-2 is made of metal, making it more durable.

[0049] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A seismic and fall prevention device for a beam, characterized in that, It includes a seismic isolation bearing body (1), which includes circular stiffening steel plates at the upper and lower ends; An outer frame (1-0) is fixed to the upper end of a circular stiffening steel plate; a metal washer (1-1) is fixed to the upper end of the outer frame (1-0), and a movable groove (1-2) for a positioning bolt (1-3) to pass through is opened on the upper end of the metal washer (1-1); a serrated edge (1-4) is fixed to the inner wall of the movable groove (1-2), and the serrated edge (1-4) is used to limit the positioning bolt (1-3). A fixing block (1-5) is fixed to the inner wall of the outer frame (1-0); a high-strength spring (1-6) for buffering the positioning bolt (1-3) is fixed to the front end of the fixing block (1-5); an arc-shaped threaded plate (1-7) is fixed to one end of the high-strength spring (1-6); an auxiliary vibration reduction and isolation structure (2) for distributing the force on the vibration reduction and isolation bearing body (1) is included between the two circular stiffening steel plates. The auxiliary vibration reduction and isolation structure (2) includes a first block (2-0) and a second block (2-3), which are welded to two circular stiffening steel plates. A spherical limiting groove (2-4) is provided in the middle of the first block (2-0) and the second block (2-3). A sphere (2-2) is movably installed inside the spherical limiting groove (2-4). A deformable lead-core rubber rod (2-1) is fixed between the two spheres (2-2). A rubber traction belt (2-5) is fixed between two adjacent first blocks (2-0) and second blocks (2-3).

2. The seismic energy dissipation and anti-collapse bearing according to claim 1, wherein, The outer frame (1-0) has a separation plate (1-10) inside, and concrete is poured between the outer frame (1-0) and the separation plate (1-10), and the concrete is separated by the separation plate (1-10).

3. The seismic isolation and anti-fall beam support according to claim 1, characterized in that, The outer frame (1-0) is further provided with a partition (1-9) inside, which is used to divide the outer frame (1-0) into equal parts.

4. The seismic isolation and anti-fall beam support according to claim 1, characterized in that, Below the outer frame (1-0), at the position where it contacts the circular stiffening steel plate, there is an embedded part (3). The embedded part (3) is embedded in the steel reinforcement cage and is welded to the steel reinforcement cage. Both sides of the embedded part (3) are provided with inlet ports (3-0) for the flow of concrete (1-8). The embedded part (3) is fixedly connected to a threaded pipe (3-1) inside, and the threaded pipe (3-1) is screwed to the positioning bolt (1-3).

5. A seismic isolation and anti-fall beam support according to claim 1, characterized in that, The sphere (2-2) is made of metal.

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