Buckling-restrained energy dissipation-self-resetting assembly and wall body

Abstract

The assembly comprises a front end plate, a rear end plate, a left side plate and a right side plate, energy consumption rod installation pieces are installed on the end plates, U-shaped frames are fixedly arranged on the energy consumption rod installation pieces, racks are welded to the outer surfaces of the U-shaped frames, racks are fixedly arranged above and below the U-shaped frames respectively, and the U-shaped frames are connected with the racks. A rotating shaft is movably installed on the right side plate, a gear is rotatably installed on the rotating shaft, and the gear is meshed with the rack. Buckling-restrained energy dissipation rods are mounted in the energy dissipation rod mounting pieces, and SMA rods are fixedly mounted on the end plates; at least two buckling-restrained energy dissipation-self-resetting assemblies are installed in a prefabricated wall panel of the wall body. According to the buckling-restrained energy dissipation rod, the load transmitted to the prefabricated wall panel by the frame can be effectively reduced, the damage of the wall panel is greatly reduced, and the secondary earthquake damage of the structure caused by the damage of the prefabricated wall panel after an earthquake is avoided; meanwhile, the self-resetting device provides good self-resetting capacity, and the post-earthquake residual displacement of the structure is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of assembled buildings, relates to a prefabricated filling wall panel, and specifically relates to an anti-buckling constraint energy dissipation-self-resetting component and a wall body. Background Art

[0002] Prefabricated buildings are the main development direction of my country's construction industry in recent years. This is because with the continuous development of economy and technology, the structural types and construction methods of the traditional construction industry cannot meet the requirements of green, energy-saving and environmental protection in my country's sustainable development strategy. Compared with traditional cast-in-place buildings, prefabricated buildings produce less pollution and have high construction efficiency. Prefabricated buildings are easy to construct, which can increase the construction speed while achieving energy conservation and environmental protection. Fewer construction workers are required, which can greatly reduce labor costs. Therefore, prefabricated buildings have gradually become the main development direction of the construction industry, but there are still some issues that need to be studied and discussed in terms of seismic performance and post-earthquake repairability of prefabricated buildings.

[0003] Prefabricated buildings refer to buildings that are prefabricated in factories for a large number of steps required at the construction site, and prefabricated components and accessories in the building are prefabricated in the factory, and finally transported to the construction site for mechanical assembly. With the acceleration of urbanization, the scale and number of construction projects are increasing. Traditional masonry walls can no longer meet the needs of rapid construction. The production process of prefabricated infill wall panels is simple and easy to assemble, which can greatly improve the construction efficiency of construction projects. Prefabricated infill wall panels, as non-load-bearing components, are generally not involved in the design and calculation of structural bearing capacity. However, in actual projects, prefabricated infill wall panels are an important factor that causes the destruction of frame columns. Therefore, the impact of wall panels on frames under earthquakes needs to be considered during design. At present, rigid wire connections are mostly used between prefabricated wall panels and frames, but this connection method has complex construction steps and low construction efficiency. There is a large interaction between prefabricated wall panels and frames. After being affected by earthquakes, the prefabricated wall panels will crack and fall off, causing secondary earthquake damage. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an anti-buckling constraint energy dissipation-self-resetting component and wall, so as to solve the technical problem in the prior art that when the prefabricated infill wall panels and the frame are subjected to the action of an earthquake, a large interaction force will be generated, resulting in cracking, falling off, etc. of the prefabricated infill wall panels.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A buckling restraint energy dissipation-self-resetting component comprises a front end plate, a rear end plate, a left side plate and a right side plate, wherein the longitudinal front end of the right side plate abuts against the front end plate, and the longitudinal rear end of the right side plate abuts against the rear end plate.

[0007] A front energy-absorbing rod mounting piece is installed at the middle position of the front end plate, a front U-shaped frame is coaxially fixedly arranged on the front energy-absorbing rod mounting piece, racks are welded on the upper outer surface and the lower outer surface of the front U-shaped frame, and front racks are fixedly arranged above and below the front U-shaped frame respectively; a pair of front rotating shafts are movably installed on the longitudinal front part of the right side plate, a front gear is rotatably installed on the lateral inner end of the front rotating shaft, and the front gear is meshed with the front rack and the rack of the front U-shaped frame.

[0008] A rear energy-absorbing rod mounting piece is installed at the middle position of the rear end plate, a rear U-shaped frame is coaxially fixedly arranged on the rear energy-absorbing rod mounting piece, racks are welded on the upper outer surface and the lower outer surface of the rear U-shaped frame, and rear racks are fixedly arranged above and below the rear U-shaped frame respectively; a pair of rear rotating shafts are movably installed on the longitudinal rear part of the right side plate, a rear gear is rotatably installed on the lateral inner end of the rear rotating shaft, and the rear gear is meshed with the rear rack and the rack of the rear U-shaped frame.

[0009] An anti-buckling constraint energy absorbing rod is installed between the front energy absorbing rod mounting piece and the rear energy absorbing rod mounting piece. The anti-buckling constraint energy absorbing rod is arranged along the lateral direction, and the lateral ends of the anti-buckling constraint energy absorbing rod are located in the middle of the front U-shaped frame and the rear U-shaped frame; an upper SMA rod and a lower SMA rod are fixedly installed between the front end plate and the rear end plate, the upper SMA rod and the lower SMA rod are arranged parallel to each other, and the upper SMA rod and the lower SMA rod are respectively located above and below the anti-buckling constraint energy absorbing rod.

[0010] The utility model also has the following technical features:

[0011] The anti-buckling constraint energy-absorbing rod comprises a front half inner rod and a rear half inner rod arranged along the lateral direction, the lateral outer end of the front half inner rod is fixedly installed in the front energy-absorbing rod mounting piece, and the lateral outer end of the rear half inner rod is fixedly installed in the rear energy-absorbing rod mounting piece, the lateral inner ends of the front half inner rod and the rear half inner rod are buckled and fixedly connected with each other, and a constraint sleeve is provided on the outer sides of the front half inner rod and the rear half inner rod.

[0012] A friction plate is installed between the transverse inner ends of the front half inner rod and the rear half inner rod.

[0013] The structures of the front half inner rod and the rear half inner rod are the same; the front half inner rod includes an integrated connecting section, a yielding section, a transition section and a positioning section; the connecting section is provided with an inner rod mounting hole; the cross-section of the yielding section is a cross-shaped structure; the positioning section is a semi-cylindrical structure, the two positioning sections of the front half inner rod and the rear half inner rod are interlocked, and a plurality of inner rod connecting holes are provided on the positioning section.

[0014] A pair of shaft mounting holes are opened on the longitudinal front part of the right side plate, and the lateral outer end of the front shaft is rotatably mounted in the shaft mounting hole at the longitudinal front part; a pair of shaft mounting holes are opened on the longitudinal rear part of the right side plate, and the lateral outer end of the rear shaft is rotatably mounted in the shaft mounting hole at the longitudinal rear part.

[0015] Limiting nuts are fixedly installed on the transverse outer ends of the front rotating shaft and the rear rotating shaft, and the limiting nuts are located on the transverse outer side of the right side plate.

[0016] A pair of rack fixing grooves are opened on the longitudinal front part of the right side plate, and a front rack is fixedly arranged in the rack fixing groove at the longitudinal front part; a pair of rack fixing grooves are opened on the longitudinal rear part of the right side plate, and a rear rack is fixedly arranged in the rack fixing groove at the longitudinal front part.

[0017] The utility model also protects a wall body, comprising a prefabricated wall panel, wherein at least two anti-buckling restraint energy dissipation-self-resetting components as described above are installed in the prefabricated wall panel.

[0018] A pair of frame columns are fixedly arranged on the outer side of the prefabricated wall panel, and a frame top beam and a frame bottom beam are fixedly arranged between the pair of frame columns; at least one pair of reserved grooves are opened on the prefabricated wall panel, and the reserved grooves are located between the prefabricated wall panel and the frame top beam. The two anti-buckling constraint energy dissipation-self-resetting components in each reserved groove are symmetrically arranged, and each anti-buckling constraint energy dissipation-self-resetting component is inclined, and the angle between the anti-buckling constraint energy dissipation-self-resetting component and the frame top beam is 30° to 45°.

[0019] At least one pair of upper connecting ear plates is fixedly installed on the inner side of the frame top beam; a pair of lower connecting ear plates is installed in the reserved groove; two front energy absorbing rod mounting parts of the anti-buckling constraint energy absorbing-self-resetting components are hinged on one upper connecting ear plate, and two rear energy absorbing rod mounting parts of the anti-buckling constraint energy absorbing-self-resetting components are respectively hinged on two lower connecting ear plates in a reserved groove.

[0020] Compared with the prior art, the utility model has the following technical effects:

[0021] (I) The buckling restraint energy dissipation-self-resetting assembly of the utility model, wherein the buckling restraint energy dissipation rod can effectively reduce the load transmitted from the frame to the prefabricated wall panel, greatly reduce the damage to the wall panel, and avoid the secondary earthquake damage caused by the destruction of the prefabricated wall panel after the earthquake; at the same time, the front shaft, the front gear, the front U-shaped frame, the rear shaft, the rear gear and the rear U-shaped frame together constitute a gear linkage device, and the gear linkage device and the front end plate, the rear end plate, the left side plate, the right side plate, the upper SMA rod and the lower SMA rod together constitute a self-resetting device, which provides a good self-resetting ability and greatly reduces the residual displacement of the structure after the earthquake.

[0022] (II) The buckling restraint energy dissipation-self-resetting assembly of the utility model dissipates energy through the relative displacement friction between the inner rod of the buckling restraint energy dissipation rod and the friction plate under the action of frequent earthquakes (i.e. small earthquakes), and dissipates energy through the tensile and compressive deformation of the yield section of the inner rod of the buckling restraint energy dissipation rod under rare earthquakes (i.e. large earthquakes), thereby greatly reducing the load transmitted to the wall panel. After the yield section of the inner rod of the buckling restraint energy dissipation rod yields, strain hardening will occur, thereby further increasing the bearing capacity of the structure, greatly reducing the damage to the wall panel, and avoiding secondary earthquake damage caused by cracking and falling off of the wall panel.

[0023] (III) The wall of the utility model, wherein the flexible connection structure (i.e., the buckling restraint energy dissipation-self-resetting component), the frame and the prefabricated wall panels are all rectangular, is easy to construct, and can greatly shorten the construction time. When the buckling restraint energy dissipation rod is damaged after an earthquake, it can be replaced so that the overall structure can quickly restore its earthquake-resistant function. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the overall structure of the anti-buckling constraint energy dissipation-self-resetting component.

[0025] Figure 2 Front view of the anti-buckling restraint energy dissipation-self-righting assembly.

[0026] Figure 3 for Figure 1 A-A' cross-sectional view.

[0027] Figure 4 Schematic diagram of the overall structure of the anti-buckling restrained energy-absorbing rod.

[0028] Figure 5 Schematic diagram of the overall structure of a wall with anti-buckling restraint energy dissipation-self-resetting components.

[0029] Figure 6 Schematic diagram of the partial structure of a wall with anti-buckling restraint energy dissipation-self-righting components.

[0030] Figure 7 A schematic diagram of the partial structure of a wall with an anti-buckling restraint energy dissipation-self-resetting component (side view).

[0031] The meanings of the numbers in the figure are as follows: 1-front end plate, 2-rear end plate, 3-left side plate, 4-right side plate, 5-front energy absorption rod mounting piece, 6-rear energy absorption rod mounting piece, 7-anti-buckling constraint energy absorption rod, 8-upper SMA rod, 9-lower SMA rod, 10-front shaft, 11-front gear, 12-front U-shaped frame, 13-front rack, 14-rear shaft, 15-rear gear, 16-rear U-shaped frame, 17-rear rack, 18-shaft mounting hole, 19-rack fixing groove, 20-limiting nut, 21-top plate, 22-bottom plate, 23-prefabricated wall panel, 24-frame column, 25-frame top beam, 26-frame bottom beam, 27-grouting concrete, 28-upper connecting ear plate, 29-reserved groove, 30-lower connecting ear plate.

[0032] 701-front half inner rod, 702-rear half inner rod, 703-restraint sleeve, 704-friction plate.

[0033] 70101-connecting section, 70102-yielding section, 70103-transition section, 70104-positioning section, 70105-inner rod mounting hole, 70106-inner rod connecting hole.

[0034] The specific contents of the utility model are further explained in detail below in conjunction with the embodiments. DETAILED DESCRIPTION

[0035] In the present invention: SMA refers to shape memory alloy.

[0036] It should be noted that, unless otherwise specified, all components in the present invention are components known in the art.

[0037] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of the present application fall within the protection scope of the present invention.

[0038] Embodiment 1:

[0039] This embodiment provides an anti-buckling constraint energy dissipation-self-resetting component, such as Figure 1 and Figure 2 As shown, it includes a front end plate 1, a rear end plate 2, a left side plate 3 and a right side plate 4. The longitudinal front end of the right side plate 4 abuts against the front end plate 1, and the longitudinal rear end of the right side plate 4 abuts against the rear end plate 2.

[0040] like Figure 1 and Figure 2As shown, a front energy-absorbing rod mounting member 5 is installed at the middle position of the front end plate 1, and a front U-shaped frame 12 is coaxially fixedly arranged on the front energy-absorbing rod mounting member 5. Racks are welded on the upper outer surface and the lower outer surface of the front U-shaped frame 12, and front racks 13 are fixedly arranged above and below the front U-shaped frame 12 respectively; a pair of front rotating shafts 10 are movably installed on the longitudinal front part of the right side plate 4, and a front gear 11 is rotatably installed on the lateral inner end of the front rotating shaft 10, and the front gear 11 is meshed with the front rack 13 and the rack of the front U-shaped frame 12.

[0041] like Figure 1 and Figure 2 As shown, a rear energy-absorbing rod mounting member 6 is installed at the middle position of the rear end plate 2, and a rear U-shaped frame 16 is coaxially fixedly arranged on the rear energy-absorbing rod mounting member 6. Racks are welded on the upper outer surface and the lower outer surface of the rear U-shaped frame 16, and rear racks 17 are fixedly arranged above and below the rear U-shaped frame 16 respectively; a pair of rear rotating shafts 14 are movably installed on the longitudinal rear part of the right side plate 4, and a rear gear 15 is rotatably installed on the lateral inner end of the rear rotating shaft 14, and the rear gear 15 is meshed with the rear rack 17 and the rack of the rear U-shaped frame 16.

[0042] like Figure 1 and Figure 2 As shown, an anti-buckling constraint energy absorbing rod 7 is installed between the front energy absorbing rod mounting member 5 and the rear energy absorbing rod mounting member 6, and the anti-buckling constraint energy absorbing rod 7 is arranged along the lateral direction, and the lateral ends of the anti-buckling constraint energy absorbing rod 7 are located in the middle of the front U-shaped frame 12 and the rear U-shaped frame 16; an upper SMA rod 8 and a lower SMA rod 9 are fixedly installed between the front end plate 1 and the rear end plate 2, and the upper SMA rod 8 and the lower SMA rod 9 are arranged parallel to each other, and the upper SMA rod 8 and the lower SMA rod 9 are located above and below the anti-buckling constraint energy absorbing rod 7.

[0043] In this embodiment, the front gear 11 and the rear gear 15 are rotatably mounted on the front shaft 10 and the rear shaft 14 using conventional methods known in the art (such as bearings).

[0044] In this embodiment, the front shaft 10, the front gear 11, the front U-shaped frame 12, the rear shaft 14, the rear gear 15 and the rear U-shaped frame 16 together form a gear linkage device, one end of the gear linkage device has a rack welded to the buckling restraint energy-absorbing rod 7, and the other end is placed in the rack fixing groove 19 through a guide rail slider, only releasing the horizontal constraint, so that it can produce horizontal displacement through the rotation of the front gear 11 and the rear gear 15. The upper SMA rod 8 and the lower SMA rod 9 are fixed to the end plates on both sides of the buckling restraint energy-absorbing rod 7, the front end plate 1, the rear end plate 2, the left side plate 3, the right side plate 4, the upper SMA rod 8, the lower SMA rod 9 and the gear linkage device together form a self-resetting device, which provides a good self-resetting ability. After the earthquake, by replacing the damaged buckling restraint energy-absorbing rod 7, the structural function can be quickly restored.

[0045] In this embodiment, when under tension, the racks welded to the two ends of the anti-buckling constraint energy-absorbing rod 7 will push the end plates, so that the SMA rod is under tension, providing the structure with self-resetting ability; when under pressure, the rack at the other end placed in the rack fixing groove 19 through the guide rail slider will push the end plates, so that the SMA rod continues to be under tension and continues to provide self-resetting ability; the rack at one end of the gear linkage device is welded to the anti-buckling constraint energy-absorbing rod 7, and the rack at the other end placed in the rack fixing groove 19 can produce horizontal movement, the end plates are respectively placed on both sides of the anti-buckling constraint energy-absorbing rod 7, and the SMA rods are connected through the end plates. When the anti-buckling constraint energy-absorbing rod 7 is pulled and produces horizontal displacement, the weld The racks connected to both ends of the anti-buckling restraint energy absorbing rod 7 push the end plates to also produce horizontal displacement, and the SMA rod is pulled. When the anti-buckling restraint energy absorbing rod 7 is compressed and produces horizontal displacement, the racks welded on both ends of the anti-buckling restraint energy absorbing rod 7 move toward the inside of the anti-buckling restraint energy absorbing rod 7, driving the gear to rotate, and the rack at the other end is driven by the gear to move toward the outside of the anti-buckling restraint energy absorbing rod 7. The racks push the end plates on both sides to move horizontally toward the outside of the anti-buckling restraint energy absorbing rod 7, and the SMA rod continues to be pulled. The SMA rod has excellent self-resetting performance, which can significantly reduce the residual displacement of the structure after an earthquake, and improve the self-resetting ability and post-earthquake repairability of the structure.

[0046] In this embodiment, the distance between the front end plate 1 and the rear end plate 2 should be set according to the structural force requirements to avoid compression fracture of the upper SMA rod 8 and the lower SMA rod 9; the diameters of the upper SMA rod 8 and the lower SMA rod 9 should be designed according to the actual engineering self-resetting capacity requirements; the rack length and layout position should be determined according to the actual elongation of the anti-buckling constraint energy-absorbing rod 7 and the distance between the end plate and the constraint sleeve 703 to avoid contact and interaction between the constraint sleeve 703 and the gear linkage device.

[0047] As a specific solution of this embodiment, Figure 3 and Figure 4 As shown, the anti-buckling constraint energy-absorbing rod 7 includes a front half inner rod 701 and a rear half inner rod 702 arranged along the lateral direction, the lateral outer end of the front half inner rod 701 is fixedly installed in the front energy-absorbing rod mounting member 5, and the lateral outer end of the rear half inner rod 702 is fixedly installed in the rear energy-absorbing rod mounting member 6, the lateral inner ends of the front half inner rod 701 and the rear half inner rod 702 are interlocked and fixedly connected, and a constraint sleeve 703 is provided on the outer sides of the front half inner rod 701 and the rear half inner rod 702.

[0048] In this embodiment, the buckling restraint energy dissipation rod 7 mainly dissipates energy in two stages, the first stage is the stage where the inner rod of the buckling restraint energy dissipation rod 7 does not participate in energy dissipation, and the second stage is the stage where the inner rod of the buckling restraint energy dissipation rod 7 participates in energy dissipation; in the first stage, the buckling restraint energy dissipation rod 7 is subjected to axial force, and when the load reaches its sliding load, displacement friction energy dissipation is generated between the inner rod of the buckling restraint energy dissipation rod 7 and the friction plate 704, and when the displacement reaches the sliding allowable deformation limit, it enters the second stage, and the inner rod of the buckling restraint energy dissipation rod 7 produces elastic deformation, and as the load continues to increase, the yield section 70102 of the inner rod of the buckling restraint energy dissipation rod 7 reaches the yield load, and plastic deformation buckling energy dissipation is generated. This structure can realize step-by-step energy dissipation when subjected to different degrees of load, has good shock absorption and energy dissipation capacity, and effectively solves the problem that the buckling restraint energy dissipation rod 7 does not consume energy significantly under small earthquakes.

[0049] In this embodiment, the material of the anti-buckling restraint energy dissipation rod 7 is aluminum alloy or steel. The inner rod of the anti-buckling restraint energy dissipation rod 7 is connected to the restraint sleeve 703 and the friction plate 704. Under the action of a small earthquake, the structure generates relative displacement friction energy dissipation through the inner rod and the friction plate 704; under the action of a medium earthquake and a large earthquake, the yield section 70102 is stretched and compressed to dissipate energy.

[0050] In this embodiment, the front half inner rod 701 and the rear half inner rod 702 together constitute the inner rod of the anti-buckling restraint energy-absorbing rod 7. Sufficient space should be left between the inner rod and the restraint sleeve 703 to ensure that the inner rod of the anti-buckling restraint energy-absorbing rod 7 has sufficient deformation space during stretching and compression, so as to give full play to the energy absorption capacity of the anti-buckling restraint energy-absorbing rod 7.

[0051] In this embodiment, the length of the constraint sleeve 703 ensures that the length of the yield section 70102 is completely covered. The constraint sleeve 703 plays an effective constraint role in the deformation process to prevent the anti-buckling constraint energy-absorbing rod 7 from buckling as a whole. At the same time, it should be prevented that the constraint sleeve 703 and the connecting section 70101 are in excessive contact with each other during the compression process, resulting in a large interaction.

[0052] As a specific solution of this embodiment, Figure 3 and Figure 4 As shown, a friction plate 704 is installed between the lateral inner ends of the front half inner rod 701 and the rear half inner rod 702. In this embodiment, the friction plate 704 is made of brass, carbon fiber or NAO (ceramic semi-metal), etc. When the wall is subjected to load, the relative displacement friction between the anti-buckling constraint energy dissipation rod 7 and the friction plate 704 and the deformation and buckling energy dissipation of the yielding section 70102 can be used to reduce the damage to the frame and wallboard.

[0053] As a specific solution of this embodiment, Figure 4As shown, the structures of the front half inner rod 701 and the rear half inner rod 702 are the same; the front half inner rod 701 includes an integrated connecting section 70101, a yielding section 70102, a transition section 70103 and a positioning section 70104; the connecting section 70101 is provided with an inner rod mounting hole 70105; the cross section of the yielding section 70102 is a cross-shaped structure; the positioning section 70104 is a semi-cylindrical structure, and the two positioning sections 70104 of the front half inner rod 701 and the rear half inner rod 702 are interlocked, and a plurality of inner rod connecting holes 70106 are provided on the positioning section 70104.

[0054] In this embodiment, the front half inner rod 701 and the rear half inner rod 702 are welded to the front energy-absorbing rod mounting member 5; the front half inner rod 701 and the rear half inner rod 702 are fixed via the inner rod connecting hole 70106, bolts, the friction plate 704 and the constraint sleeve 703; the positioning section 70104 is connected to the constraint sleeve 703 via bolts to ensure that the yield section 70102 is effectively constrained during loading; the cross-section of the yield section 70102 is a cross-shaped structure, which has a weakened cross-section compared to the connecting section and the transition section. When the structure is loaded, the yield section 70102 dissipates energy through tensile and compressive deformation, and the plastic deformation is mainly concentrated in the yield section 70102, so that other components maintain an elastic working state.

[0055] In this embodiment, the inner rod connecting hole 70106 is an oblong hole, and circular holes are opened on the friction plate 704 and the constraint sleeve 703. The circular holes are aligned with the center of the oblong hole of the inner rod connecting hole 70106, and the friction force of the anti-buckling constraint energy-absorbing rod 7 is controlled by adjusting the bolt preload.

[0056] As a specific solution of this embodiment, Figure 2 As shown, a pair of shaft mounting holes 18 are provided on the longitudinal front portion of the right side plate 4, and the transverse outer end of the front shaft 10 is rotatably mounted in the shaft mounting hole 18 at the longitudinal front portion; a pair of shaft mounting holes 18 are provided on the longitudinal rear portion of the right side plate 4, and the transverse outer end of the rear shaft 14 is rotatably mounted in the shaft mounting hole 18 at the longitudinal rear portion. In this embodiment, the inner diameter of the shaft mounting hole 18 is slightly larger than the outer diameter of the front shaft 10 and the rear shaft 14, so as to ensure that the front shaft 10 and the rear shaft 14 can both rotate and be limited.

[0057] As a specific solution of this embodiment, Figure 2 As shown, a limit nut 20 is fixedly installed on the lateral outer ends of the front shaft 10 and the rear shaft 14. The limit nut 20 is located on the lateral outer side of the right side plate 4. The limit nut 20 can ensure that the relative positions of the front shaft 10 and the rear shaft 14 are fixed in the shaft mounting holes 18 and the shaft mounting holes 18.

[0058] As a specific solution of this embodiment, Figure 2As shown, a pair of rack fixing grooves 19 are provided on the longitudinal front portion of the right side plate 4, and the front rack 13 is fixedly arranged in the rack fixing grooves 19 at the longitudinal front portion; a pair of rack fixing grooves 19 are provided on the longitudinal rear portion of the right side plate 4, and the rear rack 17 is fixedly arranged in the rack fixing grooves 19 at the longitudinal front portion. In this embodiment, the front rack 13 and the rear rack 17 are fixed in the rack fixing grooves 19 by using guide rail sliders.

[0059] As a specific solution of this embodiment, Figure 1 and Figure 2 As shown, the anti-buckling restraint energy dissipation-self-resetting component also includes a top plate 21 and a bottom plate 22. The structure composed of the front end plate 1, the rear end plate 2, the top plate 21, the bottom plate 22, the left side plate 3 and the right side plate 4 is the frame of the anti-buckling restraint energy dissipation-self-resetting component.

[0060] Embodiment 2:

[0061] This embodiment provides a wall, such as Figure 5 As shown, it includes a prefabricated wall panel 23, in which at least two anti-buckling restraint energy dissipation-self-resetting components of embodiment 1 are installed.

[0062] In this embodiment, the buckling restraint energy dissipation-self-resetting components are evenly arranged along the length direction of the prefabricated wall panel 23, and are arranged at the center line position in the thickness direction of the wall panel to ensure that the buckling restraint energy dissipation rod 7 is in a reasonable force transmission direction, and to prevent the wall panel from twisting and other adverse deformations that cause out-of-plane deviation. The position and number of buckling restraint energy dissipation-self-resetting components should be designed according to actual needs. The influence of the point support position on the seismic performance of the structure should be fully considered during the design. The buckling restraint energy dissipation-self-resetting components should be arranged at the center line position between the wall panel and the frame.

[0063] In this embodiment, the anti-buckling restraint energy-absorbing rod 7 is symmetrically arranged in the reserved groove 29 to realize a flexible point support connection. The prefabricated wall panel 23 can serve as the bottom support structure of the anti-buckling restraint energy-absorbing rod 7 to participate in energy consumption, thereby greatly improving the energy consumption capacity of the structure. This rigid-flexible combined structure can generate relative displacement friction energy consumption through the inner rod and the friction plate 704 in the anti-buckling restraint energy-absorbing rod 7 set on the top of the wall panel when subjected to a small earthquake. When subjected to a medium or large earthquake, it can dissipate energy through the tensile and compressive deformation buckling of the yield section 70102, greatly reducing the load transmitted to the wall panel by the frame, thereby reducing or avoiding damage to the wall panel. At the same time, the self-resetting device in the anti-buckling restraint energy-absorbing rod 7 can provide the structure with better self-resetting performance, effectively reducing the residual displacement of the structure after the earthquake.

[0064] As a specific solution of this embodiment, Figure 5 and Figure 6As shown, a pair of frame columns 24 are fixedly arranged on the outer side of the prefabricated wall panel 23, and a frame top beam 25 and a frame bottom beam 26 are fixedly arranged between the pair of frame columns 24; at least one pair of reserved grooves 29 are opened on the prefabricated wall panel 23, and the reserved grooves 29 are located between the prefabricated wall panel 23 and the frame top beam 25, and the two anti-buckling constraint energy dissipation-self-resetting components in each reserved groove 29 are symmetrically arranged, and each anti-buckling constraint energy dissipation-self-resetting component is inclined, and the angle between the anti-buckling constraint energy dissipation-self-resetting component and the frame top beam 25 is 30°~45°.

[0065] In this embodiment, the anti-buckling restraint energy dissipation-self-resetting components are symmetrically arranged in an isosceles triangle structure. When the wall structure is subjected to an earthquake, the two anti-buckling restraint energy dissipation rods 7 respectively stretch and compress to dissipate energy, which greatly reduces the load transmitted to the prefabricated wall panels 23, and can avoid cracking and falling off of the wall panels, thereby preventing the structure from suffering secondary earthquake damage and causing more serious losses.

[0066] In this embodiment, the frame column 24, the frame top beam 25 and the frame bottom beam 26 together form a main frame, which is a reinforced concrete frame, and the prefabricated wall panels 23 are concrete wall panels to ensure the overall strength of the structure. The prefabricated wall panels 23 and the main frame can be pre-mechanized in the factory to speed up the construction process. Bolt holes are reserved at the top of the prefabricated wall panels 23 and the bottom of the frame top beam 25 to reduce the relative rotation deformation that may occur between the wall panels and the frame.

[0067] As a specific solution of this embodiment, concrete 27 is poured between the prefabricated wall panel 23 and the frame bottom beam 26. In this embodiment, the bottom of the prefabricated wall panel 23 and the frame bottom beam 26 are rigidly connected by grouting with concrete 27, which enhances the structural integrity and thus improves the earthquake resistance.

[0068] As a specific solution of this embodiment, Figure 5 , Figure 6 and Figure 7 As shown, at least one pair of upper connecting ear plates 28 are fixedly installed on the inner side of the frame top beam 25; a pair of lower connecting ear plates 30 are installed in the reserved groove 29; one upper connecting ear plate 28 is hinged with two front energy absorbing rod mounting parts 5 of the anti-buckling constraint energy absorbing-self-resetting components, and the rear energy absorbing rod mounting parts 6 of the two anti-buckling constraint energy absorbing-self-resetting components are respectively hinged to the two lower connecting ear plates 30 in a reserved groove 29.

[0069] In this embodiment, the construction difficulty of the above-mentioned installation structure is relatively small, which can greatly reduce the repair time and cost of the structure after the earthquake, make the structure have stronger post-earthquake recoverable functionality, and minimize the post-earthquake loss. The length, radius and inclination of the anti-buckling restraint energy-absorbing rod 7 should be designed and arranged according to actual needs, and the size of the reserved groove 29 should be determined according to the size and arrangement of the anti-buckling restraint energy-absorbing rod 7. At the same time, it should be ensured that the anti-buckling restraint energy-absorbing rod 7 has sufficient space to deform and dissipate energy when the structure is displaced.

[0070] In this embodiment, the upper connecting ear plate 28 and the lower connecting ear plate 30 are made of aluminum alloy or steel. The upper connecting ear plate 28 is fixedly mounted on the frame top beam 25 by bolts, and the lower connecting ear plate 30 is fixedly mounted in the reserved groove 29 of the prefabricated wall panel 23 by bolts. The front energy absorbing rod mounting member 5 is hinged in the upper connecting ear plate 28 by pins, and the rear energy absorbing rod mounting member 6 is hinged in the lower connecting ear plate 30 by pins.

[0071] The assembly and working process of the utility model are as follows:

[0072] First, assembly: first, groute the bottom of the prefabricated wall panel 23 to be rigidly connected to the frame, then fix the ear plate connector 12 to the prefabricated wall panel 23 and the frame respectively by bolts 13, and place the two ends of the anti-buckling constraint energy-absorbing rod 7 on the ear plate connectors of the prefabricated wall panel 23 and the frame respectively, and then hinge them by pins.

[0073] Second, the working process: when the buckling restraint energy-absorbing rod 7 is displaced or elongated by tension, the racks on the front U-shaped frame 12 and the rear U-shaped frame 16 drive the front plate 1 and the rear plate 2 to displace in the force direction, so that the upper SMA rod 8 and the lower SMA rod 9 are pulled. When the buckling restraint energy-absorbing rod 7 is displaced or deformed by compression, the racks on the front U-shaped frame 12 and the rear U-shaped frame 16 drive the front gear 11 and the rear gear 15 to rotate. The rotation of the gears causes the front rack 13 and the rear rack 17 to horizontally displace toward the outside of the buckling restraint energy-absorbing rod 7, driving the front plate 1 and the rear plate 2 to displace in the opposite direction of the force, and the upper SMA rod 8 and the lower SMA rod 9 continue to be pulled. The SMA rod has a strong self-reset ability due to its material properties, which effectively reduces the residual displacement after the earthquake.

Claims

1. A buckling restraint energy dissipation-self-resetting assembly, comprising a front end plate (1), a rear end plate (2), a left side plate (3) and a right side plate (4), wherein the longitudinal front end of the right side plate (4) abuts against the front end plate (1), and the longitudinal rear end of the right side plate (4) abuts against the rear end plate (2), characterized in that: A front energy-absorbing rod mounting member (5) is installed at the middle position of the front end plate (1), a front U-shaped frame (12) is coaxially fixedly arranged on the front energy-absorbing rod mounting member (5), racks are welded on the upper outer surface and the lower outer surface of the front U-shaped frame (12), and front racks (13) are fixedly arranged above and below the front U-shaped frame (12); a pair of front rotating shafts (10) are movably installed on the longitudinal front part of the right side plate (4), a front gear (11) is rotatably installed on the lateral inner end of the front rotating shaft (10), and the front gear (11) is meshed with the front rack (13) and the rack of the front U-shaped frame (12); A rear energy-absorbing rod mounting member (6) is installed at the middle position of the rear end plate (2), a rear U-shaped frame (16) is coaxially fixedly installed on the rear energy-absorbing rod mounting member (6), racks are welded on the upper outer surface and the lower outer surface of the rear U-shaped frame (16), and rear racks (17) are fixedly installed above and below the rear U-shaped frame (16) respectively; a pair of rear rotating shafts (14) are movably installed on the longitudinal rear part of the right side plate (4), a rear gear (15) is rotatably installed on the lateral inner end of the rear rotating shaft (14), and the rear gear (15) is meshed with the rear rack (17) and the rack of the rear U-shaped frame (16); An anti-buckling restraint energy absorbing rod (7) is installed between the front energy absorbing rod mounting member (5) and the rear energy absorbing rod mounting member (6), the anti-buckling restraint energy absorbing rod (7) is arranged along the transverse direction, and the transverse ends of the anti-buckling restraint energy absorbing rod (7) are located in the middle of the front U-shaped frame (12) and the rear U-shaped frame (16); an upper SMA rod (8) and a lower SMA rod (9) are fixedly installed between the front end plate (1) and the rear end plate (2), the upper SMA rod (8) and the lower SMA rod (9) are arranged parallel to each other, and the upper SMA rod (8) and the lower SMA rod (9) are respectively located above and below the anti-buckling restraint energy absorbing rod (7).

2. The buckling restraint energy dissipation-self-resetting assembly according to claim 1, characterized in that: The anti-buckling restraint energy-absorbing rod (7) comprises a front inner rod (701) and a rear inner rod (702) arranged along the transverse direction, the transverse outer end of the front inner rod (701) is fixedly mounted in the front energy-absorbing rod mounting member (5), and the transverse outer end of the rear inner rod (702) is fixedly mounted in the rear energy-absorbing rod mounting member (6), the transverse inner ends of the front inner rod (701) and the rear inner rod (702) are mutually buckled and fixedly connected, and a restraint sleeve (703) is sleeved on the outer sides of the front inner rod (701) and the rear inner rod (702).

3. The buckling restraint energy dissipation-self-resetting assembly according to claim 2, characterized in that: A friction plate (704) is installed between the transverse inner ends of the front inner rod (701) and the rear inner rod (702).

4. The buckling restraint energy dissipation-self-resetting assembly according to claim 2, characterized in that: The front half inner rod (701) and the rear half inner rod (702) have the same structure; the front half inner rod (701) includes an integrated connecting section (70101), a yielding section (70102), a transition section (70103) and a positioning section (70104); the connecting section (70101) is provided with an inner rod mounting hole (70105); the cross section of the yielding section (70102) is a cross-shaped structure; the positioning section (70104) is a semi-cylindrical structure, and the two positioning sections (70104) of the front half inner rod (701) and the rear half inner rod (702) are interlocked, and the positioning section (70104) is provided with a plurality of inner rod connecting holes (70106).

5. The buckling restraint energy dissipation-self-resetting assembly according to claim 1, characterized in that: A pair of rotating shaft mounting holes (18) are provided on the longitudinal front portion of the right side plate (4), and the lateral outer ends of the front rotating shaft (10) are rotatably mounted in the rotating shaft mounting holes (18) at the longitudinal front portion; a pair of rotating shaft mounting holes (18) are provided on the longitudinal rear portion of the right side plate (4), and the lateral outer ends of the rear rotating shaft (14) are rotatably mounted in the rotating shaft mounting holes (18) at the longitudinal rear portion.

6. The buckling restraint energy dissipation-self-resetting assembly according to claim 1, characterized in that: The front rotating shaft (10) and the rear rotating shaft (14) are fixedly mounted with limit nuts (20) on the transverse outer ends thereof, and the limit nuts (20) are located on the transverse outer side of the right side plate (4).

7. The buckling restraint energy dissipation-self-resetting assembly according to claim 1, characterized in that: A pair of rack fixing grooves (19) are provided on the longitudinal front portion of the right side plate (4), and a front rack (13) is fixedly arranged in the rack fixing grooves (19) at the longitudinal front portion; a pair of rack fixing grooves (19) are provided on the longitudinal rear portion of the right side plate (4), and a rear rack (17) is fixedly arranged in the rack fixing grooves (19) at the longitudinal front portion.

8. A wall, comprising a prefabricated wall panel (23), characterized in that: At least two buckling restraint energy dissipation-self-resetting components according to any one of claims 1 to 7 are installed in the prefabricated wall panel (23).

9. The wall according to claim 8, characterized in that: A pair of frame columns (24) are fixedly arranged on the outer side of the prefabricated wall panel (23), and a frame top beam (25) and a frame bottom beam (26) are fixedly arranged between the pair of frame columns (24); at least one pair of reserved grooves (29) are opened on the prefabricated wall panel (23), and the reserved grooves (29) are located between the prefabricated wall panel (23) and the frame top beam (25); the two anti-buckling constraint energy dissipation-self-resetting components in each reserved groove (29) are symmetrically arranged, and each anti-buckling constraint energy dissipation-self-resetting component is inclined, and the angle between the anti-buckling constraint energy dissipation-self-resetting component and the frame top beam (25) is 30° to 45°.

10. The wall according to claim 9, characterized in that: At least one pair of upper connecting ear plates (28) is fixedly installed on the inner side of the frame top beam (25); a pair of lower connecting ear plates (30) is installed in the reserved groove (29); two front energy absorbing rod mounting parts (5) of the anti-buckling constraint energy absorbing-self-resetting components are hinged on one upper connecting ear plate (28), and two rear energy absorbing rod mounting parts (6) of the anti-buckling constraint energy absorbing-self-resetting components are respectively hinged on the two lower connecting ear plates (30) in a reserved groove (29).

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