Friction-metal buckling-restrained double-order energy dissipation supporting structure

Abstract

The utility model relates to the technical field of civil engineering vibration control, in particular to a friction-metal anti-buckling double-order energy dissipation supporting structure which comprises a metal anti-buckling support and a friction damper, and the metal anti-buckling support comprises an energy dissipation round rod, an outer sleeve, concrete, waterproof materials and a sealing plate. The friction damper comprises a fixed plate, a sliding plate, a friction plate, a connecting plate, a first limiting block, a second limiting block, an end plate, a stiffening plate, a disc spring and a bolt assembly, and the friction damper can achieve two-stage energy consumption of small and medium earthquakes or medium and large earthquakes and is suitable for earthquakes of different magnitudes. When the structure generates vibration displacement, the friction damper slides to consume energy, and the metal buckling-restrained brace is still in an elastic state; when the displacement is increased continuously, the limiting blocks in the friction damper collide with each other, the friction damper does not consume energy by friction, the core plate of the metal buckling-restrained brace generates plastic deformation and begins to consume energy, and in this way, cooperative energy consumption of the friction-metal buckling-restrained brace is achieved.

Description

Technical Field

[0001] This utility model relates to the field of vibration control technology in civil engineering, and in particular to a friction-metal buckling-resistant double-stage energy dissipation support structure. Background Technology

[0002] Metal buckling-resistance braces, as a new type of shock-absorbing and energy-dissipating component, can achieve full-section yielding under compression, which can avoid the problem of buckling instability that ordinary braces are prone to under compression. Moreover, they yield and fail before the main structure, which can effectively protect the structure.

[0003] In engineering design, metal buckling-restrained braces are typically used to absorb the energy of rare earthquakes or above, effectively preventing damage to the main structure caused by such energy. However, standalone metal buckling-restrained braces cannot provide energy dissipation under frequent earthquakes or vibrations caused by friction between the building and the wind. In most cases, existing metal buckling-restrained braces function the same as ordinary steel braces and cannot absorb energy for the building structure in such situations, thus failing to protect the building structure. Therefore, a damper that can dissipate energy under different vibrations is needed to protect the safety of the building structure. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0005] The present invention adopts the following technical solution: a friction-metal buckling-resistance double-stage energy dissipation support structure, comprising a metal buckling-resistance support and a friction damper. The metal buckling-resistance support comprises an energy dissipation round bar, an outer sleeve, concrete, waterproof material, and a sealing plate. The friction damper comprises a fixed plate, a sliding plate, a friction plate, a connecting plate, a first limiting block, a second limiting block, an end plate, a stiffening plate, a disc spring, and a bolt assembly.

[0006] The waterproof material is wrapped around the outer surface of the energy-dissipating round bar, which is set in the middle of the outer sleeve and connected to the sealing plate at both ends. The concrete fills the gap between the energy-dissipating round bar and the outer sleeve.

[0007] The fixing plate is connected to the sealing plate, the stiffening plate is connected to the sealing plate and the fixing plate, the surface of the fixing plate is provided with a waist-shaped hole, and the bolt assembly is slidably connected to the waist-shaped hole.

[0008] Preferably, the energy-consuming round bar is made of Q235, the outer sleeve is made of Q355B, and the concrete strength grade is not lower than C30.

[0009] Preferably, the sliding plate has a rectangular groove on its surface, the size of which is the same as that of the friction plate, the friction plate is embedded in the rectangular groove, and both the sliding plate and the friction plate have bolt holes through which bolt assemblies pass.

[0010] Preferably, the first limiting block is connected to the sliding plate, the second limiting block is connected to the inner wall of the outer sleeve, and there is a gap between the first limiting block and the second limiting block, the size of which is consistent with half the length of the waist-shaped hole.

[0011] Preferably, one end of the connecting plate is disposed between the sliding plates and welded to one end of the two sliding plates.

[0012] Preferably, the end plate has a rectangular hole in the middle, and the size of the rectangular hole is the same as the cross-sectional size of the connecting plate.

[0013] Preferably, the friction plate is made of brass, and the fixed plate, sliding plate, connecting plate, end plate, limit block one and limit block two are all made of Q355B.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] This invention enables two-level energy dissipation for small and moderate earthquakes, or moderate and large earthquakes, adapting to earthquakes of varying magnitudes. When the displacement of the structure is small, the friction damper undergoes sliding energy dissipation, while the metal buckling-restrained brace remains in an elastic state. As the displacement increases, the limiting blocks within the friction damper collide, the friction damper ceases frictional energy dissipation, and the core plate of the metal buckling-restrained brace undergoes plastic deformation, initiating energy dissipation. In this way, coordinated energy dissipation by the friction-metal buckling-restrained brace is achieved. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the appearance of a friction-metal anti-buckling double-stage energy-dissipating support structure according to the present invention;

[0017] Figure 2 This is a partially enlarged structural view of a friction-metal buckling-resistant double-stage energy-dissipating support structure according to this utility model;

[0018] Figure 3 This is a schematic diagram of the fixing plate of a friction-metal anti-buckling double-stage energy-dissipating support structure according to the present invention;

[0019] Figure 4 This is a schematic diagram of a sliding plate of a friction-metal anti-buckling double-stage energy-dissipating support structure according to the present invention;

[0020] Figure 5 This is a schematic diagram of the end plate of a friction-metal anti-buckling double-stage energy-dissipating support structure according to the present invention.

[0021] Legend:

[0022] 1. Energy-consuming round bar; 2. Sealing plate; 3. Outer sleeve; 4. Limiting block two; 5. Limiting block one; 6. End plate; 61. Rectangular hole; 7. Connecting plate; 8. Sliding plate; 81. Rectangular groove ； 9. Friction plate; 10. Disc spring; 11. Bolt assembly; 12. Fixing plate; 121. Waist-shaped hole; 13. Stiffening plate. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1

[0026] Please see Figure 1-5 This utility model provides a technical solution: a friction-metal buckling-resistance double-stage energy-dissipating support structure, including a metal buckling-resistance support and a friction damper. The metal buckling-resistance support includes an energy-dissipating round bar 1, an outer sleeve 3, concrete, waterproof material, and a sealing plate 2. The friction damper includes a fixed plate 12, a sliding plate 8, a friction plate 9, a connecting plate 7, a first limiting block 5, a second limiting block 4, an end plate 6, a stiffening plate 13, a disc spring 10, and a bolt assembly 11.

[0027] Waterproof material is wrapped around the outer surface of the energy-dissipating round bar 1, together forming the energy-dissipating unit of the metal buckling-resistance brace. The energy-dissipating round bar 1 is set in the middle of the outer sleeve 3 and its two ends are connected to the sealing plate 2. Concrete fills the gap between the energy-dissipating round bar 1 and the outer sleeve 3. The outer sleeve 3 and the concrete together form the constraint unit of the metal buckling-resistance brace.

[0028] The fixing plate 12 is connected to the sealing plate 2, and the stiffening plate 13 is connected to the sealing plate 2 and the fixing plate 12 to enhance the reliability of the connection between the fixing plate 12 and the sealing plate 2. The surface of the fixing plate 12 is provided with a waist-shaped hole 121, and the bolt assembly 11 is slidably connected to the waist-shaped hole 121.

[0029] Example 2

[0030] Please see Figure 1-5The energy-consuming round bar 1 is made of Q235 steel, and the outer sleeve 3 is made of Q355B steel. The concrete strength grade is not lower than C30. A rectangular groove 81 is formed on the surface of the sliding plate 8. The size of the rectangular groove 81 is the same as that of the friction plate 9. The friction plate 9 is embedded in the rectangular groove 81. Both the sliding plate 8 and the friction plate 9 have bolt holes, and the bolt holes are passed through by the bolt assembly 11. The first limiting block 5 is connected to the sliding plate 8, and the second limiting block 4 is connected to the inner wall of the outer sleeve 3. There is a gap between the connecting plate 7 and the second limiting block 4. The gap is half the length of the waist-shaped hole 121. One end of the connecting plate 7 is set between the sliding plates 8 and welded to one end of the two sliding plates 8. A rectangular hole 61 is opened in the middle of the end plate 6. The size of the rectangular hole 61 is the same as the cross-sectional size of the connecting plate 7 to facilitate its passage. The friction plate 9 is made of brass. The materials of the fixing plate 12, the sliding plate 8, the connecting plate 7, the end plate 6, the first limiting block 5 and the second limiting block 4 are all Q355B.

[0031] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0032] This invention relates to a friction-metal buckling-resistance dual-stage energy dissipation brace capable of dissipating energy at two levels during small, moderate, or medium-to-large earthquakes, adapting to earthquakes of varying magnitudes. When the displacement of the structure is small, the friction damper undergoes sliding energy dissipation, and the metal buckling-resistance brace remains in an elastic state. As the displacement increases, the limiting blocks within the friction damper collide, the friction damper ceases frictional energy dissipation, and the core plate of the metal buckling-resistance brace undergoes plastic deformation, initiating energy dissipation. In this way, the friction-metal buckling-resistance energy dissipation brace achieves coordinated energy dissipation.

[0033] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A friction-metal buckling-restrained dual-stage energy dissipation brace structure comprising a metal buckling-restrained brace and a friction damper, characterized in that: The metal anti-bending support comprises a energy dissipation round bar (1), an outer sleeve (3), concrete, waterproof material, a sealing plate (2), the friction damper comprises a fixed plate (12), a sliding plate (8), a friction plate (9), a connecting plate (7), a limiting block one (5), a limiting block two (4), an end plate (6), a stiffening plate (13), a disc spring (10) and a bolt assembly (11); The waterproof material is wrapped on the outer surface of the energy dissipation round bar (1), the energy dissipation round bar (1) is arranged in the middle of the outer sleeve (3), and both ends are connected with the sealing plate (2), and the concrete is filled in the gap between the energy dissipation round bar (1) and the outer sleeve (3). The fixed plate (12) is connected with the sealing plate (2), the stiffening plate (13) is connected with the sealing plate (2) and the fixed plate (12), and the surface of the fixed plate (12) is provided with a waist-shaped hole (121), and the bolt assembly (11) is connected with the waist-shaped hole (121).

2. The friction-metal buckling-restrained brace structure with double stages of energy dissipation according to claim 1, wherein: The material of the energy dissipation round bar (1) is Q235, the material of the outer sleeve (3) is Q355B, and the concrete strength grade is not less than C30.

3. The friction-metal buckling-restrained brace structure of claim 1, wherein: The surface of the sliding plate (8) is provided with a rectangular groove (81), the size of the rectangular groove (81) is consistent with that of the friction plate (9), the friction plate (9) is embedded in the rectangular groove (81), and the sliding plate (8) and the friction plate (9) are provided with bolt holes and are connected through the bolt assembly (11).

4. The friction-metal buckling-restrained brace structure of claim 1, wherein: The limiting block one (5) is connected with the sliding plate (8), the limiting block two (4) is connected with the inner wall of the outer sleeve (3), and the limiting block one (5) and the limiting block two (4) are spaced apart, and the size of the spacing is consistent with half of the length of the waist-shaped hole (121).

5. The friction-metal buckling-restrained brace structure of claim 1, wherein: One end of the connecting plate (7) is arranged between the sliding plates (8), and the other end of the two sliding plates (8) is welded.

6. The friction-metal buckling-restrained brace structure of claim 1, wherein: The middle of the end plate (6) is provided with a rectangular square hole (61), and the size of the rectangular square hole (61) is consistent with the cross-sectional size of the connecting plate (7).

7. The friction-metal buckling-restrained brace structure of claim 1, wherein: The material of the friction plate (9) is brass, and the materials of the fixed plate (12), the sliding plate (8), the connecting plate (7), the end plate (6), the limiting block one (5) and the limiting block two (4) are Q355B.

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