Buckling restrained brace device

Abstract

According to the buckling restrained brace device, one end of a cross beam is connected to an energy dissipation beam section, and the end, away from the cross beam, of the energy dissipation beam section is connected to the side, away from a foundation, of another vertical beam; the cross beams and the energy dissipation beam sections are coaxial and are perpendicular to the vertical beams corresponding to the cross beams and the energy dissipation beam sections; the supporting assemblies, the cross beams and the vertical beams corresponding to the cross beams form a triangular structure. Cross-shaped grooves are formed in the two ends of the supporting piece, and the two ends of the supporting piece are open; the two core plates form a first cross-shaped structure, and the first cross-shaped structure is arranged in the supporting piece; the two connecting pieces are both of a second cross-shaped structure, are arranged at the two ends of the first cross-shaped structure respectively and are installed in the corresponding cross-shaped grooves respectively; the two connecting pieces are higher than the supporting pieces; gaps are formed between the ends, facing the cross-shaped groove, of the two connecting pieces and the bottom wall of the cross-shaped groove; the deformation of the main body structure is effectively controlled, and the problems that the replacement and repair work of the energy dissipation beam section after the earthquake is inconvenient, and the cost is high are solved.

Description

Technical Field

[0001] The present application relates to the technical field of building structures, and in particular to a buckling restraint support device. Background Art

[0002] With the popularity of high-rise buildings and large-scale building structures, concrete frame structures are widely used in various types of buildings. Some concrete frame structures have weak foundations and will collapse when they are accidentally damaged by impact, explosion, earthquake, etc., which not only threatens people's lives and safety, but also pollutes the environment and causes property losses. Therefore, it has become a common practice in modern building structure technology to give full play to the advantages of prestressed technology and apply it to concrete frame foundations.

[0003] In existing concrete frame structures, energy-absorbing beams undergo significant reciprocating plastic deformation due to the complex load-bearing mechanisms of these beams, which simultaneously withstand tension, bending, and shear. This makes these beams susceptible to damage, making post-earthquake replacement and repair inconvenient and costly. Utility Model Content

[0004] The embodiments of the present application provide a buckling restraint support device to solve the problem of inconvenience and high cost in replacing and repairing energy-absorbing beam sections after an earthquake.

[0005] The embodiment of the present application provides a buckling restrained support device, comprising a frame beam, a support assembly, and an energy-absorbing beam segment;

[0006] The frame beam includes a horizontal beam and two vertical beams;

[0007] The two vertical beams are both installed vertically on the foundation and spaced apart along the length direction of the foundation;

[0008] One end of the horizontal beam is connected to a side of one of the vertical beams away from the foundation, and the other end is connected to the energy-absorbing beam section, and one end of the energy-absorbing beam section away from the horizontal beam is connected to a side of the other vertical beam away from the foundation;

[0009] The horizontal beam and the energy-absorbing beam section are coaxial and perpendicular to the corresponding vertical beam;

[0010] The support assembly, the cross beam and the corresponding vertical beam form a triangular structure;

[0011] The support assembly includes a support member, two core plates, two connecting members and two end plates;

[0012] Both ends of the support member are provided with a cross groove, and the support member is a structure with two ends open;

[0013] The two core plates form a first cross structure, and the first cross structure is arranged inside the support member;

[0014] The outer wall of the first cross structure and the inner wall of the support member form a cavity structure; the cavity structure is provided with a cast-in-place concrete layer;

[0015] The two connecting members are both second cross structures, and the two connecting members are respectively arranged at both ends of the first cross structure, and the two connecting members are respectively installed in the corresponding cross slots;

[0016] The height of the two connecting members is higher than that of the supporting member; a gap is formed between one end of the two connecting members facing the cross groove and the bottom wall of the cross groove;

[0017] One end of the two end plates is respectively connected to the end of the corresponding connecting piece away from the cross groove, and the other end is respectively connected to the bottom of the side of the horizontal beam away from the corresponding vertical beam and the side of the vertical beam corresponding to the horizontal beam close to the foundation.

[0018] In a possible implementation, the energy-absorbing beam section includes an H-shaped channel steel and a plurality of ribs;

[0019] The two ends of the H-shaped channel steel are respectively connected to one end of the horizontal beam away from the corresponding vertical beam and one side of the other vertical beam away from the foundation;

[0020] The plurality of ribs are all arranged in the groove cavity of the H-shaped channel steel and are spaced apart along the length direction of the H-shaped channel steel;

[0021] The cross beam and the H-shaped channel steel are coaxial and perpendicular to the corresponding vertical beam.

[0022] In a possible implementation, the energy-absorbing beam section further includes two side plates;

[0023] One end of the two side plates is respectively connected to the two ends of the H-shaped channel steel, and the other ends are respectively connected to one end of the horizontal beam away from the corresponding vertical beam and the side of the other vertical beam away from the foundation.

[0024] In one possible implementation, the support assembly further includes a plurality of stiffening plates;

[0025] The plurality of stiffening plates are respectively arranged on the side walls of the two end plates.

[0026] In a possible implementation, reinforcement plates are provided on both upper and lower sides of the connection between the horizontal beam and the corresponding vertical beam.

[0027] In a possible implementation, a plurality of reinforcing plates are provided circumferentially on a side of the crossbeam close to the energy-absorbing beam section.

[0028] The technical solutions provided in the embodiments of this application have at least the following technical effects:

[0029] The present application provides a buckling restraint support device. When external forces act on frame beams or building structures, these forces will be transmitted to the support assembly through the crossbeams and energy-absorbing beam sections. The core plate in the support assembly, as the main load-bearing component, will first be subjected to the axial load. During the force-bearing process, the core plate will undergo controllable plastic deformation. This deformation will absorb and dissipate a large amount of energy, thereby reducing the impact and damage to the main structure. At the same time, the gap design between the connecting parts and the support parts allows the core plate to have a certain degree of freedom when deforming, thereby improving its energy dissipation capacity. It can not only provide a certain lateral stiffness for the structure, but also dissipate the energy in the structure, effectively control the deformation of the main structure, and solve the problem of inconvenience and high cost in replacing and repairing the energy-absorbing beam section after an earthquake. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments of the present application or the description of the prior art. Obviously, the drawings described below are some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 A schematic structural diagram of the buckling restraint support device provided in this embodiment;

[0032] Figure 2 A schematic structural diagram of the support assembly provided in this embodiment;

[0033] Figure 3 A schematic structural diagram of the core plate provided in this embodiment;

[0034] Figure 4 A schematic structural diagram of the energy dissipation beam section provided in this embodiment;

[0035] Figure 5 This is a schematic structural diagram of the cross section AA of the energy dissipation beam section provided in this embodiment.

[0036] Icons: 1-frame beam; 11-cross beam; 12-vertical beam; 13-ground beam; 2-support assembly; 21-end plate; 22-stiffening plate; 23-support member; 24-core plate; 25-connector; 26-cross groove; 27-reinforcement plate; 3-energy absorption beam section; 31-side plate; 32-rib plate; 33-H-shaped channel steel; 111-reinforcement plate. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this utility model, but not all of them. Based on the embodiments of this utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this utility model.

[0038] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present invention. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0039] like Figures 1 to 5 As shown, an embodiment of the present application provides a buckling restraint support device, including a frame beam 1, a support assembly 2 and an energy-absorbing beam section 3.

[0040] The frame beam 1 includes a transverse beam 11 and two vertical beams 12 .

[0041] The two vertical beams 12 are both vertically mounted on the foundation and spaced apart along the length direction of the foundation.

[0042] One end of the horizontal beam 11 is connected to the side of one of the vertical beams 12 away from the foundation, and the other end is connected to the energy absorbing beam section 3. The end of the energy absorbing beam section 3 away from the horizontal beam 11 is connected to the side of the other vertical beam 12 away from the foundation.

[0043] The horizontal beam 11 and the energy-absorbing beam section 3 are coaxial and perpendicular to the corresponding vertical beam 12 .

[0044] The support assembly 2 , the cross beam 11 and the corresponding vertical beam 12 form a triangular structure.

[0045] The support assembly 2 includes a support member 23 , two core plates 24 , two connecting members 25 and two end plates 21 .

[0046] Cross slots 26 are provided at both ends of the support member 23 , and the support member 23 is a structure with both ends open.

[0047] The two core plates 24 form a first cross structure, and the first cross structure is disposed inside the support member 23 .

[0048] The outer wall of the first cross structure and the inner wall of the support member 23 form a cavity structure, and the cavity structure is provided with a cast-in-situ concrete layer.

[0049] The two connecting members 25 are both second cross structures, and the two connecting members 25 are respectively disposed at two ends of the first cross structure, and the two connecting members 25 are respectively installed in the corresponding cross slots 26 .

[0050] The height of the two connecting members 25 is higher than that of the supporting member 23. One end of the two connecting members 25 facing the cross groove 26 forms a gap with the bottom wall of the cross groove 26.

[0051] One end of the two end plates 21 is respectively connected to the end of the corresponding connecting piece 25 away from the cross groove 26, and the other end is respectively connected to the bottom of the side of the horizontal beam 11 away from the corresponding vertical beam 12 and the side of the vertical beam 12 corresponding to the horizontal beam 11 close to the foundation.

[0052] It should be noted that if Figure 1 As shown, ground beam 13 is horizontally positioned on the foundation plane and fixedly connected to the working surface. Cross beam 11 is positioned above and parallel to ground beam 13 at a distance. The lower ends of vertical beams 12 are fixedly connected to ground beam 13 to form a frame structure. Energy dissipation beam section 3, as an energy dissipation element in the device, can also be positioned in the middle of cross beam 11. When the structure is subjected to external forces, it can absorb and dissipate some of the energy, thereby protecting the main structure from serious damage.

[0053] Support assembly 2 exhibits high ductility and strength. The first cross structure formed by the two core panels 24 serves as the core material of support assembly 2. Support members 23 act to restrain and protect the core panels 24. Polymer materials are used at the interface between the cast-in-place concrete layer and the core panels 24 to enhance interfacial bonding and shear resistance. The gap created by the height design of connectors 25 provides space for the core panels 24 to deform under stress. This design facilitates energy absorption and dissipation through the deformation of the core panels 24 under extreme conditions such as earthquakes, minimizing the development of plastic deformation and the accumulation of damage, thereby improving the reliability and durability of the main structure.

[0054] The angle between the support assembly 2 and the frame beam 1 is between forty and seventy degrees. This support method can effectively resist various external forces, thereby improving the seismic performance of the main structure. When external forces act on the frame beam 1 or the building structure, these forces will be transmitted to the support assembly 2 through the crossbeam 11 and the energy-absorbing beam section 3. The core plate 24 in the support assembly 2, as the main load-bearing component, will first be subjected to the axial load. During the force-bearing process, the core plate 24 will undergo controllable plastic deformation. This deformation will absorb and dissipate a large amount of energy, thereby reducing the impact and damage to the main structure. At the same time, the gap design between the connector 25 and the support member 23 allows the core plate 24 to have a certain degree of freedom when deforming, thereby improving its energy dissipation capacity. It can provide a certain degree of lateral stiffness for the structure and dissipate the energy in the structure, effectively controlling the deformation of the main structure and solving the problem of inconvenience and high cost in replacing and repairing the energy-absorbing beam section 3 after an earthquake.

[0055] In this embodiment, the energy-absorbing beam section 3 includes an H-shaped channel steel 33 and a plurality of ribs 32 .

[0056] Both ends of the H-shaped channel steel 33 are respectively connected to one end of the horizontal beam 11 away from the corresponding vertical beam 12 and a side of the other vertical beam 12 away from the foundation.

[0057] The plurality of ribs 32 are disposed in the groove cavity of the H-shaped channel steel 33 and are spaced apart along the length direction of the H-shaped channel steel 33 .

[0058] The horizontal beam 11 and the H-shaped channel steel 33 are coaxial and perpendicular to the corresponding vertical beam 12 .

[0059] It should be noted that the length of the energy-absorbing beam section 3 is determined by the number of ribs 32. The length of the energy-absorbing beam section 3 can be changed according to the needs of the frame structure, thereby changing the protection range of the frame system. The connection method of the ribs 32 inside the H-shaped channel steel 33 can be bolt connection or welding. The arrangement of the ribs 32 follows a certain rule. The preferred arrangement method in this application is to be arranged equidistantly in an N shape in the length direction of the H-shaped channel steel 33. Of course, under the premise of the same connection method, the arrangement method of the ribs 32 can also be vertically set and arranged in a straight line inside the H-shaped channel steel 33. The energy-absorbing beam section 3 plays an early energy consumption control role in this application. When the pressure or shear force is transmitted between the ribs 32 of the energy-absorbing beam section 3, most of the force will be consumed, reducing the force reaching other structures of the frame, thereby protecting the main structure.

[0060] In this embodiment, the energy-absorbing beam section 3 further includes two side plates 31 .

[0061] One end of the two side plates 31 is connected to both ends of the H-shaped channel steel 33 , and the other ends are connected to one end of the horizontal beam 11 away from the corresponding vertical beam 12 and the side of the other vertical beam 12 away from the foundation.

[0062] It should be noted that the two side panels 31 are provided with bolt holes. Bolts penetrate the side panel 31 at one end and are embedded in the inner side surface of a vertical beam 12 to be fixedly connected thereto. Similarly, bolts penetrate the side panel 31 at the other end and are embedded in one end surface of the horizontal beam 11 to be fixedly connected thereto. The connection between the H-shaped channel steel 33 and the frame beam 1 can also be made using a web connection. The design of the side panels 31 and the bolts increases the bending bearing capacity at both ends of the energy-absorbing beam section 3 and improves the seismic performance of the connection between the foundation and the superstructure, thereby improving the seismic performance of the frame structure system, reducing earthquake losses in the reinforced concrete frame structure, and achieving high efficiency throughout the entire life cycle of the reinforced concrete structure.

[0063] In this embodiment, the support assembly 2 further includes a plurality of stiffening plates 22 .

[0064] A plurality of stiffening plates 22 are respectively disposed on the side walls of the two end plates 21 .

[0065] It should be noted that after the end plate 21 is fixedly connected to the frame beam 1, a stiffening plate 22 is attached to the inner side of the end plate 21 using high-strength bolts. The stiffening plates 22 are 10 mm thick and there are no fewer than four of them. The design of the stiffening plates 22 strengthens the reliability and tightness of the connection between the assembly and the concrete frame, further improving the seismic performance of the frame while ensuring the removable connection.

[0066] In this embodiment, reinforcement plates 27 are provided on both the upper and lower sides of the connection between the horizontal beam 11 and the corresponding vertical beam 12 .

[0067] It should be noted that the number of reinforcement plates 27 is no less than 4, the thickness is 10 mm, and the shape of the reinforcement plates 27 is preferably a triangular structure. Since the reinforcement plates 27 are connected to both the horizontal beam 11 and the vertical beam 12, the reliability and tightness of the connection between the horizontal beam 11 and the vertical beam 12 are improved, making the main structure more stable.

[0068] In this embodiment, a plurality of reinforcing plates 111 are provided in the circumferential direction of one side of the cross beam 11 close to the energy-absorbing beam section 3 .

[0069] It should be noted that if Figure 1 As shown, multiple transverse fixing plates are provided at both ends of the vertical beam 12, both of which are used to improve the stability and earthquake resistance of the device. They are bolted to the outer surfaces of the circumference of the horizontal beam 11 and the vertical beam 12, further reducing the impact of earthquakes on the main structure of the building.

[0070] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0071] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application is described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A buckling restraint support device, characterized in that: It comprises a frame beam (1), a support assembly (2) and an energy-absorbing beam section (3); The frame beam (1) comprises a transverse beam (11) and two vertical beams (12); The two vertical beams (12) are both vertically mounted on the foundation and spaced apart along the length direction of the foundation; One end of the cross beam (11) is connected to a side of one of the vertical beams (12) away from the foundation, and the other end is connected to the energy-absorbing beam section (3); and one end of the energy-absorbing beam section (3) away from the cross beam (11) is connected to a side of the other vertical beam (12) away from the foundation; The transverse beam (11) and the energy-absorbing beam section (3) are coaxial and perpendicular to the corresponding vertical beam (12); The support assembly (2), the cross beam (11) and the corresponding vertical beam (12) form a triangular structure; The support assembly (2) comprises a support member (23), two core plates (24), two connecting members (25) and two end plates (21); Both ends of the support member (23) are provided with a cross groove (26), and the support member (23) is a structure with both ends open; The two core plates (24) form a first cross structure, and the first cross structure is arranged inside the support member (23); The outer wall of the first cross structure and the inner wall of the support member (23) form a cavity structure; the cavity structure is provided with a cast-in-situ concrete layer; The two connecting members (25) are both second cross structures, and the two connecting members (25) are respectively arranged at two ends of the first cross structure, and the two connecting members (25) are respectively installed in the corresponding cross slots (26); The height of the two connecting members (25) is higher than the height of the supporting member (23); one end of the two connecting members (25) facing the cross groove (26) forms a gap with the bottom wall of the cross groove (26); One end of the two end plates (21) is respectively connected to one end of the corresponding connecting piece (25) away from the cross groove (26), and the other end thereof is respectively connected to the bottom of the side of the cross beam (11) away from the corresponding vertical beam (12) and the side of the vertical beam (12) corresponding to the cross beam (11) close to the foundation.

2. The buckling-restrained brace according to claim 1, wherein: The energy-absorbing beam section (3) comprises an H-shaped channel steel (33) and a plurality of ribs (32); The two ends of the H-shaped channel steel (33) are respectively connected to one end of the horizontal beam (11) away from the corresponding vertical beam (12) and one side of the other vertical beam (12) away from the foundation; The plurality of ribs (32) are all arranged in the groove cavity of the H-shaped channel steel (33) and are spaced apart along the length direction of the H-shaped channel steel (33); The cross beam (11) and the H-shaped channel steel (33) are coaxial and perpendicular to the corresponding vertical beam (12).

3. The buckling-restrained brace according to claim 2, wherein: The energy-absorbing beam section (3) further includes two side plates (31); One end of the two side plates (31) is respectively connected to the two ends of the H-shaped channel steel (33), and the other end thereof is respectively connected to one end of the horizontal beam (11) away from the corresponding vertical beam (12) and the side of the other vertical beam (12) away from the foundation.

4. The buckling-restrained brace according to claim 1, wherein: The support assembly (2) further includes a plurality of stiffening plates (22); The plurality of stiffening plates (22) are respectively arranged on the side walls of the two end plates (21).

5. The buckling-restrained brace according to claim 1, wherein: Reinforcement plates (27) are provided on both upper and lower sides of the connection between the cross beam (11) and the corresponding vertical beam (12).

6. The buckling-restrained brace according to claim 1, wherein: A plurality of reinforcing plates (111) are provided in the circumferential direction of one side of the cross beam (11) close to the energy-absorbing beam section (3).

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