Buckling restrained brace device

Abstract

The utility model relates to the technical field of shock absorption of building structures, in particular to a buckling restrained brace device which comprises a brace body provided with a connecting part. The limiting assembly is arranged on the supporting main body, and the limiting assembly is connected with the connecting part; and the reset component is connected with the limiting assembly, the reset component is in a long strip shape, and the length of the reset component extends in the length direction of the supporting body. According to the buckling restrained brace device provided by the invention, by arranging the reset component, when the core material is pressed and deformed under the action of the compressed axial force of the brace main body, the reset component deforms and accumulates certain elastic potential energy, and when the axial force is cancelled, the core material is reset. The deformed reset component can recover towards the initial state along with the cancelling of the acting force, and in the process, the core material can be pulled to deform towards the initial state so as to recover to the normal state or close to the normal state.

Description

Technical Field

[0001] This application relates to the field of building structure vibration reduction technology, and in particular to a buckling restraint brace. Background Technology

[0002] Currently, earthquakes occur frequently around the world. Therefore, it is particularly important to effectively design building structures to resist earthquakes and mitigate their adverse effects. In order to improve the safety and stability of building structures under dynamic loads such as earthquakes and wind vibrations, dampers are often installed to dissipate energy and reduce the vibration response and displacement of the structure.

[0003] Specifically, this involves a high-elasticity self-resetting buckling-restrained brace (BRB) primarily used in the field of structural vibration reduction in buildings. A BRB consists of three parts: a steel core, an outer restraint member, and unbonded material or gaps. The restraint member prevents overall buckling of the core under compression and restrains local buckling, ensuring full yielding of the core across its entire cross-section under both tensile and compressive forces. BRBs dissipate energy through the axial plastic deformation of the steel, classifying them as displacement-related energy-dissipating vibration reduction devices. However, existing conventional BRBs have limited load-bearing capacity and generate significant residual deformation after an earthquake, rendering the structure unusable and difficult to repair, resulting in substantial economic losses. Utility Model Content

[0004] The purpose of this application is to provide a buckling restraint brace to address, to some extent, the technical problems existing in the prior art where conventional buckling restraint braces have limited load-bearing capacity, generate large residual deformation after an earthquake, and make the structure unusable and difficult to repair after the earthquake.

[0005] This application provides a buckling restraint support device, comprising: a support body, wherein the support body is provided with a connecting portion;

[0006] A limiting component is disposed on the support body and connected to the connecting portion;

[0007] A reset member is connected to the limiting component. The reset member is elongated and its length extends along the length direction of the supporting body.

[0008] In the above technical solution, the limiting component further includes:

[0009] The first limiting member is provided with a first connecting part at one end of the supporting body, and the first limiting member is connected to the first connecting part;

[0010] The second limiting member is provided at the other end of the support body, and the second limiting member is connected to the second connecting part;

[0011] The third limiting member is disposed on the support body, and the first limiting member, the third limiting member and the second limiting member are arranged sequentially at intervals along the length direction of the support body.

[0012] In any of the above technical solutions, a first gap is formed between the first limiting member and the third limiting member, and a second gap is formed between the second limiting member and the third limiting member, wherein the first gap and the second gap are equal.

[0013] In any of the above technical solutions, the number of reset components is further plurality;

[0014] A portion of the plurality of reset members is disposed between the first limiting member and the third limiting member, and another portion of the plurality of reset members is disposed between the third limiting member and the second limiting member.

[0015] In any of the above technical solutions, further, a plurality of reset members between the first limiting member and the third limiting member are equally spaced along the circumferential direction of the support body;

[0016] The plurality of reset members between the second limiting member and the third limiting member are equally spaced along the circumference of the support body;

[0017] The number of reset members between the first limiting member and the third limiting member is the same as the number of reset members between the second limiting member and the third limiting member.

[0018] In any of the above technical solutions, the reset component is further defined as a spring, which includes a first elastic segment, a second elastic segment, and a third elastic segment distributed in sequence. The length of the second elastic segment is greater than the length of the first elastic segment and also greater than the length of the third elastic segment. The distance between adjacent spring coils in the second elastic segment is greater than the distance between adjacent spring coils in the first elastic segment and also greater than the distance between adjacent spring coils in the third elastic segment.

[0019] In any of the above technical solutions, the buckling restraint support device further includes a fixing member, wherein the first limiting member, the second limiting member and the third limiting member are respectively provided with the fixing member, and the end of the reset member is connected to the fixing member.

[0020] In any of the above technical solutions, the fixing component further includes:

[0021] Fixed column;

[0022] A fixing cylinder is fixedly disposed on the limiting component; the fixing cylinder is arranged around the fixing post;

[0023] The fixing column is provided with a protrusion, and part of the resetting component is engaged between the protrusion and the fixing cylinder.

[0024] In any of the above technical solutions, the supporting body further includes:

[0025] A core material, wherein one end of the core material is provided with the first connecting portion and the other end of the core material is provided with the second connecting portion;

[0026] The outer cylinder, through which the core material passes, and the second limiting member is disposed in the outer cylinder;

[0027] The core material and the outer cylinder are filled with filler.

[0028] In any of the above technical solutions, a portion of the core material protrudes toward the outer cylinder to form a limiting portion.

[0029] Compared with the prior art, the beneficial effects of this application are as follows:

[0030] The buckling restraint support device provided in this application includes: a support body with a connecting part; a restraining component disposed on the support body and connected to the connecting part; and a reset member connected to the restraining component. The reset member is elongated and its length extends along the length direction of the support body.

[0031] The buckling-restrained brace provided in this application, by setting a reset member, when the core material undergoes compressive deformation under the action of axial force on the main body of the brace, the reset member deforms accordingly and accumulates a certain amount of elastic potential energy. When the axial force is removed, the deformed reset member will return to its initial state as the force is removed. In this process, it can pull the core material to deform towards its original state and return to its normal state. It can cope with subsequent aftershocks, effectively improve the earthquake and wind resistance of the building structure, and can continue to be used. Thus, it solves the problem that conventional buckling-restrained braces in the prior art cannot be used after an earthquake and are difficult to repair. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the buckling restraint support device provided in the embodiments of this application;

[0034] Figure 2 for Figure 1 Sectional view along AA;

[0035] Figure 3 A schematic diagram of the repositioning component of the buckling restraint support device provided in the embodiments of this application;

[0036] Figure 4 A schematic diagram of the fixing member of the buckling restraint support device provided in the embodiments of this application;

[0037] Figure 5 for Figure 4 A sectional view along CC.

[0038] Figure label:

[0039] 1-Supporting body, 101-Outer cylinder, 102-Core material, 1021-Limiting part, 103-Filling, 104-First connecting part, 105-Second connecting part, 1051-First plate part, 1052-Second plate part, 2-Limiting component, 201-First limiting member, 202-Second limiting member, 203-Third limiting member, 3-Reset component, 301-First elastic segment, 302-Second elastic segment, 303-Third elastic segment, 4-Fixing component, 401-Fixing cylinder, 402-Fixing column, 403-Protrusion. Detailed Implementation

[0040] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0041] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0042] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] The following reference Figures 1 to 5 This application describes a buckling restraint support device according to an embodiment.

[0046] See Figures 1 to 5 As shown, an embodiment of this application provides a buckling restraint support device, which includes a support body 1, a restraining component 2, and a reset component 3. The restraining component 2 is disposed on the support body 1, and the support body 1 is provided with a connecting part. The restraining component 2 is disposed on the connecting part, or the restraining component 2 is connected to the connecting part. The reset component 3 is connected to the restraining component 2, and the length of the reset component 3 extends along the length direction of the support body 1. When the support body 1 is subjected to force and deforms, the reset component 3 is simultaneously subjected to force and contracts, accumulating a certain amount of elastic potential energy. When the external force on the support body 1 disappears or is canceled, the elastic potential energy accumulated by the reset component 3 is released, and the reset component 3 is stretched to the initial state or close to the initial state. During this process, it can pull the support body 1 back to its original state or close to its original state, so that the buckling restraint support device can continue to be used. This avoids excessive deformation of the support body 1 after an earthquake, which would require repair or replacement, and also significantly reduces the difficulty of replacing or repairing the support body 1.

[0047] Specifically, the structure of the support body 1 is similar to that of existing common buckling-restrained brace structures, including an outer cylinder 101, a core material 102, and a filler 103. The outer cylinder 101 can be made of steel pipe, and the core material 102 is inserted into the outer cylinder 101. The core material 102 can have a plate-like structure, but is not limited to this. The filler 103 fills the space between the core material 102 and the outer cylinder 101. Preferably, a limiting part 1021 is provided at the middle position of the core material 102, and preferably there are two limiting parts 1021, one of which is located at... One of the long sides of the core material 102 is provided with a limiting part 1021, which is located on the other long side of the core material 102. The limiting part 1021 protrudes towards the outer cylinder 101 from the side of the core material 102 and has an arc-shaped protrusion structure. The two limiting parts 1021 are symmetrically arranged. More preferably, the two limiting parts 1021 are located at the middle length position of the core material 102. After the core material 102 and the outer cylinder 101 are assembled in place and the filler 103 is filled, the filler 103 and the limiting part 1021 limit each other to prevent the core material 102 and the outer cylinder 101 from moving.

[0048] The connecting portion includes a first connecting portion 104 and a second connecting portion 105. The first connecting portion 104 is disposed at one end of the core material 102, and the second connecting portion 105 is disposed at the other end of the core material 102. Preferably, the first connecting portion 104, the core material 102, and the second connecting portion 105 have an integral structure. The second connecting portion 105 includes a first plate portion 1051 and a second plate portion 1052 distributed in a cross shape. Preferably, the first plate portion 1051 and the second plate portion 1052 are integrally formed. The first connecting portion 104 and the second connecting portion 105 have the same structure.

[0049] Further, the limiting component 2 includes: a first limiting member 201, a second limiting member 202, and a third limiting member 203, all of which have the same structure. Preferably, the first limiting member 201 and the second limiting member 202 have a flat plate structure, and the third limiting member 203 has an annular structure. More preferably, the first limiting member 201 and the second limiting member 202 are both rectangular plates, and the third limiting member 203 has a circular inner ring and a rectangular outer ring. The first limiting member 201 is connected to the first connecting part 104, and the connection method may be, but is not limited to, welding. The second limiting member 202 is connected to the second connecting part 105, and the connection method may be, but is not limited to, welding. The third limiting member 203 is located between the first limiting member 201 and the second limiting member 202 and is arranged around the outer cylinder 101 in the circumferential direction. The third limiting member 203 is fixedly connected to the outer cylinder 101, and the connection method may be, but is not limited to, welding. The first limiting member 201, the outer cylinder 101, the third limiting member 203, and the second limiting member 202 are coaxially arranged.

[0050] Preferably, a first gap is formed between the first limiting member 201 and the third limiting member 203, and a second gap, the same as the first gap, is formed between the second limiting member 202 and the third limiting member 203.

[0051] Furthermore, this buckling restraint support device also includes multiple fixing members 4 for fixing the reset member 3, with each reset member 3 corresponding to two fixing members 4. The first limiting member 201, the second limiting member 202, and the third limiting member 203 are each provided with multiple fixing members 4. Specifically, the surface of the first limiting member 201 facing the third limiting member 203 has multiple fixing members 4, and the surface of the third limiting member 203 facing the first limiting member 201 has the same number of fixing members 4. Similarly, the surfaces of the second limiting member 202 and the third limiting member 203 facing each other have the same number of fixing members 4. The fixing members 4 on the first limiting member 201 are evenly spaced along the circumference of the first connecting portion 104. The fixing members 4 on the second limiting member 202 are equally spaced along the circumference of the outer cylinder 101. The fixing members 4 on the first limiting member 201 and the fixing members 4 on the side surface of the third limiting member 203 facing the first limiting member 201 are arranged one-to-one. The fixing members 4 on the side surface of the third limiting member 203 facing the second limiting member 202 are also arranged one-to-one with the fixing members 4 on the second limiting member 202. The fixing members 4 on the second limiting member 202 are equally spaced along the circumference of the second connecting portion 105. As described above, there are multiple reset members 3. Preferably, the number of reset members 3 is even. The number of reset members 3 between the first limiting member 201 and the third limiting member 203, as well as between the second limiting member 202 and the third limiting member 203, is also even. The axis of each reset member 3 in its natural state is parallel to the axis of the outer cylinder 101, so that the force exerted by each reset member 3 on each position of the support body 1 is as balanced as possible. More preferably, the reset member 3 is a bidirectional spring commonly used in the prior art. Under the action of external force, the reset member 3 can be stretched and contracted.

[0052] Furthermore, the reset member 3 can be divided along its length into a first elastic segment 301, a second elastic segment 302, and a third elastic segment 303 distributed sequentially. Preferably, the first elastic segment 301 and the third elastic segment 303 have the same length, the second elastic segment 302 has a longer length than the first elastic segment 301 and the third elastic segment 303, the distance between adjacent spring coils in the first elastic segment 301 is the same as the distance between adjacent spring coils in the third elastic segment 303, the distance between adjacent spring coils in the second elastic segment 302 is greater than the distance between adjacent spring coils in the first elastic segment 301, and the hardness of the second elastic segment 302 is less than the hardness of the first elastic segment 301 and the third elastic segment 303. This can increase the connection strength and connection stability between the first elastic segment 301 and the third elastic segment 303 and the fixing member 4, respectively. The second elastic segment 302 serves as the main deformation body.

[0053] Further, the fixing member 4 includes a fixing cylinder 401 and a fixing post 402. Taking one of the fixing members 4 disposed on the first limiting member 201 as an example, the fixing cylinder 401 is disposed on the side surface of the first limiting member 201 facing the third limiting member 203, and the fixing cylinder 401 is fixedly connected to the first limiting member 201. The connection method can be welding. The fixing post 402 is disposed inside the fixing cylinder 401. Preferably, the fixing cylinder 401 and the fixing post 402 are coaxially disposed, and a gap is formed between the side wall surface of the fixing post 402 and the inner wall surface of the fixing cylinder 401. A protrusion 403 is provided on the outer side wall of the fixing post 402, and the protrusion 403 protrudes outward relative to the side wall surface of the fixing post 402. Preferably, there are two protrusions 403, but this is not the only option. The outer ring edge of the protrusion 403 is spaced apart from the inner wall of the fixing cylinder 401, forming a locking space between the protrusion 403 and the bottom wall of the fixing cylinder 401. One end of the reset member 3 can be locked into the locking space. Under the limiting action of the protrusion 403, the end of the reset member 3 is limited between the protrusion 403 and the fixing cylinder 401, thereby completing the connection of the reset member 3. The other end of the reset member 3 is fixed to another fixing member 4 in the same way. The connection method between multiple reset members 3 and each fixing member 4 is the same, which can be fully understood by those skilled in the art, and will not be described in detail here.

[0054] In summary, the buckling restraint brace provided in this application, by setting a reset member 3, allows the core material 102 to deform under the action of a compressive axial force on the main support body 1. The reset member 3 deforms accordingly and accumulates a certain amount of elastic potential energy. When the axial force is removed, the deformed reset member 3 will return to its initial state as the force is removed. During this process, it can pull the core material 102 to deform towards its original state and return to a normal or near-normal state. This can cope with subsequent aftershocks, effectively improve the earthquake and wind resistance of the building structure, and can continue to be used. This solves the problem that conventional buckling restraint braces in the prior art cannot be used after an earthquake and are difficult to repair.

[0055] In addition, under extreme earthquake conditions, the reset component 3 can also be stressed along with the core material 102, which can largely prevent the main support 1 from being damaged and losing its yield strength. The buckling restraint support device has a reasonable overall design, simple manufacturing process, and is easy to promote and apply in actual construction projects.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A buckling-restrained brace device characterized by comprising: include: A supporting body, wherein the supporting body is provided with a connecting part; A limiting component is disposed on the support body and connected to the connecting portion; A reset member is connected to the limiting component. The reset member is elongated and its length extends along the length direction of the supporting body.

2. The buckling-restrained bracing device according to claim 1, wherein The limiting components include: The first limiting member is provided with a first connecting part at one end of the supporting body, and the first limiting member is connected to the first connecting part; The second limiting member is provided at the other end of the support body, and the second limiting member is connected to the second connecting part; The third limiting member is disposed on the support body, and the first limiting member, the third limiting member and the second limiting member are arranged sequentially at intervals along the length direction of the support body.

3. The buckling restraint support device according to claim 2, characterized in that, A first gap is formed between the first limiting member and the third limiting member, and a second gap is formed between the second limiting member and the third limiting member, wherein the first gap and the second gap are equal.

4. The buckling-restrained bracing device according to claim 2, wherein The number of reset components is multiple; A portion of the plurality of reset members is disposed between the first limiting member and the third limiting member, and another portion of the plurality of reset members is disposed between the third limiting member and the second limiting member.

5. The buckling-restrained bracing device according to claim 4, wherein The plurality of reset members between the first limiting member and the third limiting member are equally spaced along the circumference of the support body; The plurality of reset members between the second limiting member and the third limiting member are equally spaced along the circumference of the support body; The number of reset members between the first limiting member and the third limiting member is the same as the number of reset members between the second limiting member and the third limiting member.

6. The buckling-restrained bracing device according to any one of claims 1 to 5, wherein The reset component is a spring, which includes a first elastic segment, a second elastic segment, and a third elastic segment distributed in sequence. The length of the second elastic segment is greater than the length of the first elastic segment and also greater than the length of the third elastic segment. The distance between adjacent spring coils in the second elastic segment is greater than the distance between adjacent spring coils in the first elastic segment and also greater than the distance between adjacent spring coils in the third elastic segment.

7. The buckling-restrained bracing device according to claim 2, wherein The buckling restraint support device further includes a fixing member, wherein the first limiting member, the second limiting member and the third limiting member are respectively provided with the fixing member, and the end of the reset member is connected to the fixing member.

8. The buckling-restrained bracing device according to claim 7, wherein The fixing component includes: Fixed column; A fixing cylinder is fixedly disposed on the limiting component; the fixing cylinder is arranged around the fixing post; The fixing column is provided with a protrusion, and part of the resetting component is engaged between the protrusion and the fixing cylinder.

9. The buckling-restrained bracing device according to claim 2, wherein The supporting structure includes: A core material, wherein one end of the core material is provided with the first connecting portion and the other end of the core material is provided with the second connecting portion; The outer cylinder, through which the core material passes, and the second limiting member is disposed in the outer cylinder; The core material and the outer cylinder are filled with filler.

10. The buckling-restrained bracing device according to claim 9, wherein A portion of the core material protrudes toward the outer cylinder to form a limiting part.

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