Replaceable buckling restrained brace device

Abstract

The utility model discloses a replaceable buckling restrained brace device, particularly relates to buckling restrained brace technical field, including core material, reinforcing sleeve and packing layer, the packing layer is provided between core material and reinforcing sleeve, core material outer wall surface and reinforcing sleeve inner wall surface are both provided with the non-adhesive layer, the packing layer is provided with the non-adhesive layer. Fixing grooves are formed in the top and the bottom of the reinforcing sleeve, fixing covers are detachably connected into the two fixing grooves, through holes matched with the core material are formed in the tops of the two fixing covers, and the core material penetrates through the two through holes. The buckling restrained brace device is composed of the core material, the reinforcing sleeve, the non-bonding layer, the filling layer and the fixing cover, can resist slight earthquakes, medium-grade earthquakes, high-grade earthquakes and wind loads, can also serve as an efficient energy dissipation damper, reduces response of the structure in the earthquakes through energy dissipation, accordingly improves the anti-seismic performance of the structure, and reduces the construction cost. And the two fixing covers are disassembled, so that the core material is convenient to replace and the sleeve is convenient to reinforce.

Description

Technical Field

[0001] This utility model relates to the field of buckling restraint support technology, and more specifically to a replaceable buckling restraint support device. Background Technology

[0002] Earthquakes, as a natural disaster, pose a significant threat to human society due to their suddenness and destructiveness, especially in the fields of buildings and infrastructure. Therefore, improving the seismic resistance of engineering structures has always been a focus of attention in academia and engineering. Structural optimization is a key approach to enhancing seismic performance. By introducing innovative structural systems and improving existing structures, the seismic resistance of buildings can be significantly improved. For example, the application of seismic isolation technology and energy-dissipating damping structures can provide more effective protection for buildings during earthquakes. Among numerous damping technologies, bracing structures, as an economical and efficient lateral force resisting component, not only improve the stiffness and load-bearing capacity of the structure but also do not affect the building's lighting and internal spatial layout, while also facilitating construction.

[0003] For example, the existing technology disclosure number CN219794785U describes a double-stage buckling restraint brace. This utility model includes a restraint tube and a core plate mechanism. The core plate mechanism includes an energy dissipation plate assembly and a pin assembly. The energy dissipation plate assembly includes a first-stage energy dissipation plate and a second-stage energy dissipation plate, which prevents the buckling restraint brace from instantly losing its bearing capacity and stiffness, thereby improving the energy dissipation effect of the entire device under different seismic levels.

[0004] Traditional bracing systems include centrally braced frames (CBF) and eccentrically braced frames (EBF). In minor and strong earthquakes, the braces in a CBF may buckle under compression and yield under tension. Buckling reduces their load-bearing capacity and limits their energy dissipation capacity as lateral force resisting members. Therefore, most seismic codes have adjusted the seismic load-bearing capacity of centrally braced frames. EBF, on the other hand, limits buckling through the yielding of the eccentric beam segment, thus possessing better energy dissipation performance. However, the yielding of the eccentric beam segment also complicates post-earthquake structural repair, and the brace stiffness is not fully utilized. Based on this, this invention provides a replaceable buckling-restrained brace device. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides a replaceable buckling restraint brace. The buckling restraint brace consists of a core material, a reinforcing sleeve, an unbonded layer, a filler layer, and a fixing cap. The buckling restraint brace can resist minor, moderate, and high-magnitude earthquakes as well as wind loads. It can also serve as a highly efficient energy-dissipating damper, reducing the structure's response during earthquakes by dissipating energy, thereby improving the structure's seismic performance. Furthermore, the two fixing caps can be removed to facilitate the replacement of the core material and the reinforcing sleeve, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a replaceable buckling restraint support device, comprising a core material, a reinforcing sleeve, and a filling layer. The filling layer is disposed between the core material and the reinforcing sleeve. Both the outer wall surface of the core material and the inner wall surface of the reinforcing sleeve are provided with an adhesive-free layer. The top and bottom of the reinforcing sleeve are machined with fixing grooves, and fixing caps can be detachably connected to both fixing grooves. The top of both fixing caps is machined with through holes adapted to the core material. The core material passes through the two through holes, and a sealing strip is provided between the core material and the through holes to improve the sealing performance between them.

[0007] In a preferred embodiment, the outer wall surface of the core material and the inner wall surface of the reinforcing sleeve are both processed with multiple rectangular shallow grooves, and the multiple rectangular shallow grooves on the outer wall surface of the core material are all located inside the reinforcing sleeve. The rectangular shallow grooves facilitate the installation of the non-adhesive layer.

[0008] In a preferred embodiment, the non-adhesive layer includes release paper, which is fixedly adhered inside the rectangular shallow groove. The release paper is in contact with the filling layer and is a type of anti-stick paper that can isolate the filling layer from the core material and the reinforcing sleeve, thereby facilitating the disassembly and removal of the core material, filling layer and reinforcing sleeve, and making it convenient for workers to replace them.

[0009] In a preferred embodiment, the top and bottom of the reinforcing sleeve are both machined with threaded holes, and there are multiple threaded holes that are evenly distributed on the reinforcing sleeve to facilitate the installation of the fixing cover by the workers.

[0010] In a preferred embodiment, the two fixing covers are machined with the same number of mounting holes as the threaded holes on the opposite side. Each mounting hole is fitted with a fastening bolt. The fixing covers are detachably fixed to the reinforcing sleeve by the fastening bolts. Multiple fastening bolts are used to fix the fixing covers. After the workers loosen the fastening bolts, the fixing covers can be removed to replace the internal core material and filling layer.

[0011] In a preferred embodiment, the core material has a cross-shaped cross section, and both the core material and the reinforcing sleeve are made of metal steel. Using metal steel for the core material and the reinforcing sleeve can improve the strength and support effect of the entire device.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model consists of a core material, a reinforcing sleeve, an adhesive-free layer, a filling layer, and a fixing cover. The buckling restraint brace can resist minor earthquakes, medium and high-level earthquakes, and wind loads. It can also be used as a highly efficient energy-dissipating damper to reduce the structure's response during earthquakes by dissipating energy, thereby improving the structure's seismic performance. Furthermore, the two fixing covers can be removed to facilitate the replacement of the core material and the reinforcing sleeve.

[0014] 2. By setting release paper on both the outer wall of the core material and the inner wall of the reinforcing sleeve, the release paper can isolate the filling layer from the core material and the reinforcing sleeve, thereby facilitating the quick removal of the core material and filling layer from the reinforcing sleeve by the staff, which can improve the replacement efficiency of the core material and the reinforcing sleeve. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a structural diagram of the fixing cover and reinforcing sleeve of this utility model;

[0017] Figure 3 This is a schematic diagram of the core material of this utility model;

[0018] Figure 4 This is a schematic diagram of the reinforcing sleeve of this utility model;

[0019] Figure 5 This is a top view of the overall structure of this utility model.

[0020] The attached diagram is labeled as follows: 1. Core material; 2. Reinforcing sleeve; 3. Filler layer; 4. Unbonded layer; 41. Release paper; 5. Fixing groove; 6. Fixing cap; 7. Through hole; 8. Sealing strip; 9. Rectangular shallow groove; 10. Threaded hole; 11. Mounting hole; 12. Fastening bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Refer to the instruction manual appendix Figures 1-5 This utility model provides a replaceable buckling restraint support device, including a core material 1, a reinforcing sleeve 2 and a filling layer 3. The core material 1 has a cross-shaped cross section. Both the core material 1 and the reinforcing sleeve 2 are made of metal steel. The filling layer 3 is located between the core material 1 and the reinforcing sleeve 2. In actual use, the filling layer 3 can be mortar.

[0023] Both the outer wall surface of the core material 1 and the inner wall surface of the reinforcing sleeve 2 are provided with a non-adhesive layer 4. Specifically, multiple rectangular shallow grooves 9 are processed on both the outer wall surface of the core material 1 and the inner wall surface of the reinforcing sleeve 2, and the multiple rectangular shallow grooves 9 on the outer wall surface of the core material 1 are all located inside the reinforcing sleeve 2. The non-adhesive layer 4 includes release paper 41, which is fixedly adhered to the inside of the rectangular shallow grooves 9. The release paper 41 is in contact with the filling layer 3, but the surface of the release paper 41 is not adhered to the filling layer 3. Therefore, it can play a role in isolating the core material 1 and the reinforcing sleeve 2 from the filling layer 3.

[0024] The top and bottom of the reinforcing sleeve 2 are both machined with fixing grooves 5. Fixing covers 6 can be detachably connected to both fixing grooves 5. The top of both fixing covers 6 is machined with through holes 7 that are compatible with the core material 1. The core material 1 passes through the two through holes 7. A sealing strip 8 is provided between the core material 1 and the through holes 7 to improve the sealing performance of the two.

[0025] Next, threaded holes 10 are machined at the top and bottom of the reinforcing sleeve 2. There are multiple threaded holes 10, which are evenly distributed on the reinforcing sleeve 2. The two fixing covers 6 are machined with the same number of mounting holes 11 as the threaded holes 10 on the opposite side. Each mounting hole 11 is fitted with a fastening bolt 12. The fixing cover 6 is detachably fixed to the reinforcing sleeve 2 by the fastening bolt 12.

[0026] This buckling-restrained brace consists of a core material 1, a reinforcing sleeve 2, an unbonded layer 4, a filler layer 3, and two fixed caps 6. In the elastic stage, the buckling-restrained brace can resist minor earthquakes and wind loads. In the elastoplastic stage, the buckling-restrained brace can act as a highly efficient energy-dissipating damper. Under low earthquake magnitudes, the buckling-restrained brace is similar to existing steel braces, providing additional stiffness. Under moderate and high earthquake magnitudes, the buckling-restrained brace enters the plastic stage, which not only provides additional stiffness but also reduces the structure's response during earthquakes by dissipating energy, thereby improving the structure's seismic performance.

[0027] The reinforcing sleeve 2 enables the core material 1 to yield under pressure. A filling layer 3, which is formed by filling mortar, is provided between the core material 1 and the reinforcing sleeve 2. In order to reduce or eliminate the force transmitted to the filling material when the core material 1 is subjected to axial force, the core material 1 will expand due to the Poisson effect under pressure. Therefore, a non-adhesive material is also provided between the core material 1 and the mortar, so that the mortar is separated from the core material 1 and the reinforcing sleeve 2. This makes it easier for the staff to loosen the fastening bolts 12 on the fixing cover 6, remove the fixing cover 6, and take out the core material 1 and the solidified mortar, thus facilitating the replacement of the core material 1 and the reinforcing sleeve 2.

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A replaceable buckling restraint brace, characterized in that: It includes a core material (1), a reinforcing sleeve (2) and a filling layer (3), wherein the filling layer (3) is disposed between the core material (1) and the reinforcing sleeve (2), and both the outer wall surface of the core material (1) and the inner wall surface of the reinforcing sleeve (2) are provided with an adhesive-free layer (4); The reinforcing sleeve (2) has a fixing groove (5) at the top and bottom. A fixing cover (6) can be detachably connected to each of the two fixing grooves (5). The top of each fixing cover (6) has a through hole (7) that matches the core material (1). The core material (1) passes through the two through holes (7). A sealing strip (8) is provided between the core material (1) and the through hole (7) to improve their sealing performance.

2. The replaceable buckling restraint support device according to claim 1, characterized in that: The outer wall surface of the core material (1) and the inner wall surface of the reinforcing sleeve (2) are both processed with multiple rectangular shallow grooves (9), and the multiple rectangular shallow grooves (9) on the outer wall surface of the core material (1) are all located inside the reinforcing sleeve (2).

3. The replaceable buckling restraint support device according to claim 2, characterized in that: The non-adhesive layer (4) includes release paper (41), which is fixedly bonded inside the rectangular shallow groove (9) and is in contact with the filler layer (3).

4. The replaceable buckling restraint support device according to claim 1, characterized in that: The reinforcing sleeve (2) has threaded holes (10) machined at both the top and bottom. There are multiple threaded holes (10) evenly distributed on the reinforcing sleeve (2).

5. The replaceable buckling restraint support device according to claim 4, characterized in that: The two fixed covers (6) are machined with the same number of mounting holes (11) as the threaded holes (10) on the opposite side. Each mounting hole (11) is fitted with a fastening bolt (12). The fixed cover (6) is detachably fixed to the reinforcing sleeve (2) by the fastening bolt (12).

6. The replaceable buckling restraint support device according to claim 1, characterized in that: The core material (1) has a cross-shaped cross section, and both the core material (1) and the reinforcing sleeve (2) are made of metal steel.

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