Variable-cross-section friction energy dissipation self-resetting supporting device

Abstract

The utility model discloses a variable cross-section friction energy consumption self-resetting supporting device which comprises a first base, a second base, a first plate, a second plate, a resetting piece and an energy consumption assembly. The first plate abuts against one end of the first base and one end of the second base in the first direction, and the second plate abuts against the other end of the first base and the other end of the second base in the first direction. The resetting piece is connected between the first plate and the second plate, a first connecting part of the energy consumption assembly is connected with a first mounting seat in the first base, a second connecting part of the energy consumption assembly is connected with a second mounting seat in the second base, the energy consumption assembly comprises center plates, clamping plate components and connecting pieces, and the center plates and the clamping plate components are alternately arranged in the first direction; each clamping plate component comprises two clamping plates, the center plate is arranged between the adjacent clamping plate component and connected with the clamping plate component through a connecting piece, and the connecting piece can stretch and retract in a self-reset mode in the second direction. The self-resetting device has the advantages of high energy consumption and high self-resetting efficiency, and the coupling performance of energy consumption and resetting is good.

Description

Technical Field

[0001] This utility model belongs to the field of building technology, and specifically relates to a variable cross-section friction energy dissipation self-resetting support device. Background Technology

[0002] With the increasing demands for seismic and wind resistance design of building structures, energy dissipation and vibration reduction technologies have become an important means to improve the safety of engineering structures. As a typical energy dissipation device, braced dampers significantly reduce the dynamic response of the main structure by absorbing energy from external excitations (such as earthquakes and wind vibrations).

[0003] The related technologies mainly include metal yielding type, friction type, and viscous fluid type, but they have certain limitations. The cost of post-earthquake repair or replacement is high, which affects the restoration of building functions.

[0004] Self-resetting damping technology has also been introduced into related technologies to reduce or avoid damage to building structures caused by earthquakes. Self-resetting performance is enhanced through composite mechanisms (such as SMA-friction combination, prestressed steel strand-shear plate coupling), and self-resetting devices (such as shape memory alloys) enable the building structure to automatically reset after an earthquake, thereby improving its seismic recovery performance. However, there is a problem of poor coupling between energy-dissipating components and reset components. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in the related art.

[0006] Therefore, embodiments of this utility model propose a variable cross-section friction energy-dissipating self-resetting support device with high energy consumption, high self-resetting efficiency, and good coupling performance.

[0007] The variable cross-section friction energy dissipation self-resetting support device of this utility model embodiment includes:

[0008] First base;

[0009] The second base, the first base and the second base are disposed opposite to each other in a first direction and are movable relative to each other in the first direction, and at least a portion of the first base and at least a portion of the second base are overlapped;

[0010] A first plate and a second plate, wherein the first plate abuts against one end of the first base and the second base in a first direction, and the second plate abuts against the other end of the first base and the second base in a first direction;

[0011] A reset element is connected between the first plate and the second plate. The reset element is extendable and self-resetting retractable to apply a force that brings the first plate and the second plate closer to each other, so that the device can self-reset after operation.

[0012] An energy-consuming component, wherein there are multiple energy-consuming components, each energy-consuming component having a first connecting portion and a second connecting portion in a first direction, the first connecting portion being connected to a first mounting seat in a first base, and the second connecting portion being connected to a second mounting seat in a second base, the energy-consuming component including a center plate, a clamping plate component and a connector, the center plate and the clamping plate component being alternately arranged in a first direction, the clamping plate component including two clamping plates arranged parallel in a second direction, the center plate being disposed between two clamping plates in an adjacent clamping plate component and connected by a connector, the first direction and the second direction being orthogonal;

[0013] The overlapping sections of the center plate and the clamping plate are both variable cross-section sections. The center plate and the clamping plate components can move relative to each other in the first direction. The connecting member can extend and retract self-reset along the second direction.

[0014] In the variable cross-section friction energy dissipation self-resetting support device of this utility model embodiment, the energy dissipation component consumes a lot of energy, and the dual reset is achieved through the reset component and the connecting component, resulting in high self-resetting efficiency. This improves the coupling performance of energy dissipation and reset, and enhances the seismic performance and post-earthquake self-resetting performance of the building.

[0015] In some embodiments, the number of at least one of the center plate and the clamping plate components is multiple.

[0016] In some embodiments, the number of the center plate and the clamping plate components are both at least two, wherein the two center plates are respectively located at both ends of the energy-consuming component in a first direction, the first connecting portion is provided on the center plate located at one end of the energy-consuming component, and the second connecting portion is provided on the center plate located at the other end of the energy-consuming component.

[0017] In some embodiments, the opposite end faces of the variable cross-section section in the center plate are mirror-arranged first curved end faces, which are wavy, and the end face of the variable cross-section section in the clamping plate facing the center plate is a second curved end face, which is wavy, and the first curved end face and the second curved end face are in contact with each other.

[0018] In some embodiments, the connector is a shape memory alloy bolt.

[0019] In some embodiments, the reset element is a shape memory alloy stranded wire, and there are multiple reset elements arranged at circumferential intervals along the first plate and the second plate.

[0020] In some embodiments, the first base includes a first side plate and a first vertical plate, the two first side plates are arranged parallel to each other and opposite to each other, and the first vertical plate is connected between the two first side plates; the second base includes a second side plate and a second vertical plate, the two second side plates are arranged parallel to each other and opposite to each other, and the second vertical plate is connected between the two second side plates.

[0021] The two second side plates are located between the two first side plates.

[0022] In some embodiments, a first mounting seat is provided on each of the opposite sides of the first upright plate, and a second mounting seat is provided on each of the opposite sides of the second upright plate. The energy-consuming component is provided between the first mounting seat and the second mounting seat which are arranged opposite each other in the first direction. The first connecting part of the energy-consuming component is connected to the first mounting seat, and the second connecting part of the energy-consuming component is connected to the second mounting seat.

[0023] In some embodiments, the first base further includes a longitudinal beam and two transverse beams located at both ends of the longitudinal beam. The longitudinal beam and the two transverse beams are arranged in a U-shape. The two first side plates are respectively connected to the two transverse beams. The first upright plate is connected to the longitudinal beam. There is a gap between the first upright plate and the first side plate.

[0024] The second upright plate and the second side plate are fitted together and fixed in place, with a portion of the second side plate located in the gap between the first upright plate and the first side plate.

[0025] In some embodiments, the first plate is provided with through slots corresponding to the first upright plate and the two crossbeams, and the second plate is provided with through slots corresponding to the second upright plate. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the variable cross-section friction energy dissipation self-resetting support device according to an embodiment of this utility model.

[0027] Figure 2 This is a schematic diagram from another perspective of the variable cross-section friction energy dissipation self-resetting support device according to an embodiment of this utility model.

[0028] Figure 3 This is a schematic diagram showing the arrangement of the first base and the second base in an embodiment of this utility model.

[0029] Figure 4 This is a schematic diagram of the first base in an embodiment of this utility model.

[0030] Figure 5 This is a schematic diagram of the second base in an embodiment of this utility model.

[0031] Figure 6 This is a schematic diagram showing the arrangement of the first plate, the second plate, and the reset component in an embodiment of this utility model.

[0032] Figure 7 This is a schematic diagram of the energy-consuming component in an embodiment of this utility model.

[0033] Figure 8 This is a schematic diagram of the arrangement of multiple center plates in an embodiment of this utility model.

[0034] Figure 9 This is a schematic diagram of the clamping plate component in an embodiment of this utility model.

[0035] Figure label:

[0036] 100. Variable cross-section friction energy dissipation self-resetting support device;

[0037] 1. First base; 11. First side plate; 12. First upright plate; 13. First mounting base; 14. Longitudinal beam; 15. Crossbeam;

[0038] 2. Second base; 21. Second side plate; 22. Second vertical plate; 23. Second mounting base;

[0039] 31. First plate; 32. Second plate; 33. Through groove;

[0040] 4. Reset component;

[0041] 5. Energy-consuming component; 51. Center plate; 52. Clamping plate component; 521. Clamping plate; 53. Connector; 54. Elongated hole; 55. First curved end face; 56. Second curved end face; 57. First connecting part; 58. Second connecting part;

[0042] 6. Fasteners. Detailed Implementation

[0043] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0044] See Figures 1 to 9 The variable cross-section friction energy dissipation self-resetting support device 100 of this utility model includes a first base 1, a second base 2, a first plate 31, a second plate 32, a reset member 4, and an energy dissipation component 5.

[0045] A first base 1 and a second base 2 are disposed opposite to each other in a first direction and are movable relative to each other in the first direction. At least a portion of the first base 1 and at least a portion of the second base 2 are overlapped. The first direction is the left-right direction shown in the figure. The first base 1 is located on the left side, and the second base 2 is located on the right side. A portion of the right side of the first base 1 and a portion of the left side of the second base 2 are overlapped. When applied to a building structure, the first base 1 and the second base 2 are respectively connected to two parts of the building structure. When subjected to external forces, the first base 1 and the second base 2 will move relative to each other in the first direction.

[0046] The first plate 31 is located on the left side, abutting against one end (left end) of the first base 1 and the second base 2 in a first direction. The second plate 32 is located on the right side, abutting against the other end (right end) of the first base 1 and the second base 2 in the first direction. A reset member 4 is connected between the first plate 31 and the second plate 32. The reset member 4 is extendable and self-resetting retractable to apply a force that brings the first plate 31 and the second plate 32 closer together.

[0047] In this state, regardless of whether the first base 1 and the second base 2 are far apart or close together, the first plate 31 and the second plate 32 will move away from each other, thereby stretching the reset member 4. When the reset member 4 is stretched, it can automatically reset by utilizing its self-resetting characteristic.

[0048] There are multiple energy-consuming components 5, and all of the multiple energy-consuming components 5 are disposed between the first base 1 and the second base 2. The energy-consuming component 5 has a first connecting part 57 and a second connecting part 58 in a first direction. The first connecting part 57 is connected to the first base 1, and the second connecting part 58 is connected to the second base 2.

[0049] The energy-consuming component 5 includes a central plate 51, clamping plate components 52, and a connector 53. The central plate 51 and clamping plate components 52 are arranged alternately in a first direction. When there is only one central plate 51 and one clamping plate component 52, they are arranged in the first direction. When there are multiple central plates 51 and multiple clamping plate components 52, the central plates 51 and clamping plate components 52 are arranged alternately and connected in the first direction. Each clamping plate component 52 includes two clamping plates 521 arranged parallel to each other in a second direction. The central plate 51 is located between two clamping plates 521 of its adjacent clamping plate components 52 and connected by the connector 53. The first direction and the second direction are orthogonal. The second direction is the up-down direction shown in the figure.

[0050] The overlapping sections of the center plate 51 and the clamping plate 521 are both variable cross-section sections. The center plate 51 and the clamping plate component 52 can move relative to each other in the first direction, and the connecting member 53 can extend and retract in the second direction. To avoid the connecting member 53 obstructing the movement of the center plate 51 and the clamping plate component 52 in the first direction, at least one of the connecting holes on the center plate 51 and the clamping plate component 52 is an elongated hole 54. When the center plate 51 and the clamping plate component 52 move relative to each other, the connecting member 53 can move within the elongated hole 54. For example, the connecting hole on the center plate 51 is an elongated hole 54, and the connecting hole on the clamping plate 521 in the clamping plate component 52 is a round hole.

[0051] When the building structure is subjected to external force, causing the first base 1 and the second base 2 to move relative to each other in the first direction, the adjacent center plate 51 and clamping plate component 52 in the energy dissipation component 5 will move relative to each other synchronously. Since the clamping plate component 52 and the center plate 51 are both provided with variable cross-section sections, the two clamping plates 521 in the clamping plate component 52 will move relative to the center plate 51 in the second direction, the connecting member 53 will be stretched in the second direction, and at the same time the first plate 31 and the second plate 32 will move away from each other in the first direction, and the reset member 4 will be stretched.

[0052] In this embodiment, the energy-dissipating component 5 dissipates energy through an energy-dissipating structure formed by one or more sets of central plates 51 and clamping plate components 52. This achieves a frictional energy dissipation design that combines multiple energy-dissipating structures in series and parallel, thereby improving the stability of the building structure. The connector 53 and the reset component 4 can achieve dual reset, thus coupling with the energy-dissipating component 5. They have good coordination and can automatically reset after the external force disappears, ensuring the effective restoration of the building structure's function and significantly reducing the damage to the building structure caused by external forces such as earthquakes and wind.

[0053] In the variable cross-section friction energy dissipation self-resetting support device 100 of this utility model embodiment, the energy dissipation component 5 consumes a lot of energy. It achieves dual reset through the reset component 4 and the connecting component 53, and has high self-resetting efficiency, thereby improving the coupling performance of energy dissipation and reset, and improving the seismic performance and post-earthquake self-resetting performance of the building.

[0054] The following describes a variable cross-section friction energy dissipation self-resetting support device 100 according to some specific embodiments of the present invention.

[0055] See Figures 1 to 9 The variable cross-section friction energy dissipation self-resetting support device 100 of this utility model includes a first base 1, a second base 2, a first plate 31, a second plate 32, a reset member 4, and an energy dissipation component 5.

[0056] like Figures 1 to 3As shown, a first base 1 and a second base 2 are disposed opposite to each other in a first direction and are movable relative to each other in the first direction. At least a portion of the first base 1 and at least a portion of the second base 2 are overlapped. The first direction is the left-right direction shown in the figure. The first base 1 is located on the left side, and the second base 2 is located on the right side. A portion of the right side of the first base 1 and a portion of the left side of the second base 2 are overlapped. When applied to building structures, the first base 1 and the second base 2 are respectively connected to two parts of the building structure. When subjected to external forces, the first base 1 and the second base 2 will move relative to each other in the first direction.

[0057] Specifically, such as Figure 4 and Figure 5 As shown, the first base 1 includes a longitudinal beam 14, two transverse beams 15 located at both ends of the longitudinal beam 14, a first side plate 11, and a first vertical plate 12. The longitudinal beam 14 and the two transverse beams 15 are arranged in a U-shape. The two first side plates 11 are parallel and opposite to each other, and are respectively connected to the two transverse beams 15. The first vertical plate 12 is connected between the two first side plates 11 and is connected to the longitudinal beam 14. There is a gap between the first vertical plate 12 and the first side plate 11. The second base 2 includes a second side plate 21 and a second vertical plate 22. The two second side plates 21 are parallel and opposite to each other, and the second vertical plate 22 is connected between the two second side plates 21. The second vertical plate 22 and the second side plate 21 are fitted and fixed together, and the two second side plates 21 are located between the two first side plates 11. A portion of the second side plate 21 is located in the gap between the first vertical plate 12 and the first side plate 11.

[0058] The first plate 31 is located on the left side, and abuts against one end (left end) of the first base 1 and the second base 2 in the first direction. The second plate 32 is located on the right side, and abuts against the other end (right end) of the first base 1 and the second base 2 in the first direction. The first plate 31 is provided with through slots 33 corresponding to the first vertical plate 12 and the two crossbeams 15, and the second plate 32 is provided with through slots 33 corresponding to the second vertical plate 22.

[0059] like Figure 6 As shown, the reset element 4 is connected between the first plate 31 and the second plate 32. The reset element 4 can extend and retract self-reset to apply a force that brings the first plate 31 and the second plate 32 closer together. Specifically, the reset element 4 is a shape memory alloy stranded wire, and there are four reset elements 4 arranged circumferentially between the first plate 31 and the second plate 32. The reset element 4 is made of Ni-Ti shape memory alloy wire twisted together. The specifications of the reset element 4 can be 1*7 or 7*7. When designing the self-resetting support, the reset element 4 should be as long as possible, and it should be ensured that the reset element 4 does not enter the reinforcement section, otherwise it will affect the reset performance of the self-resetting support.

[0060] In this state, regardless of whether the first base 1 and the second base 2 are far apart or close together, the first plate 31 and the second plate 32 will move away from each other, thereby stretching the reset member 4. When the reset member 4 is stretched, it can automatically reset by utilizing its self-resetting characteristic.

[0061] There are multiple energy-consuming components 5. In this embodiment, there are two energy-consuming components 5, which are arranged between the corresponding first mounting base 13 and second mounting base 23.

[0062] First mounting bases 13 are provided on opposite sides of the first upright plate 12, and second mounting bases 23 are provided on opposite sides of the second upright plate 22. Energy dissipation components 5 are provided between the first mounting bases 13 and the second mounting bases 23 which are positioned opposite each other in a first direction. The first connecting part 57 of the energy dissipation component 5 is connected to the first mounting base 13 by a fastener 6, and the second connecting part 58 of the energy dissipation component 5 is connected to the second mounting base 23 by a fastener 6. The fastener 6 can be a high-strength bolt.

[0063] like Figures 7 to 9 As shown, the energy-consuming component 5 includes a center plate 51, clamping plate components 52, and a connector 53. The center plate 51 and clamping plate components 52 are arranged alternately in a first direction. There are multiple center plates 51 and multiple clamping plate components 52. Two of the multiple center plates 51 are located at opposite ends of the energy-consuming component 5 in the first direction. That is, a first connecting part 57 is provided on the center plate 51 located at one end of the energy-consuming component 5, and a second connecting part 58 is provided on the center plate 51 located at the other end of the energy-consuming component 5. Specifically, there are three center plates 51 and two clamping plate components 52. The center plates 51 and clamping plate components 52 are arranged alternately and connected in the first direction. Each clamping plate component 52 includes two clamping plates 521 arranged parallel in the second direction. The center plate 51 is located between two clamping plates 521 of its adjacent clamping plate components 52 and connected by the connector 53. The first direction and the second direction are orthogonal. The connector 53 is a shape memory alloy bolt.

[0064] The energy-consuming component 5 is arranged symmetrically on the left and right halves in the first direction.

[0065] The overlapping sections of the center plate 51 and the clamping plate 521 are both variable cross-section sections. The opposite end faces of the variable cross-section sections in the center plate 51 are mirror-arranged first curved end faces 55, which are wavy. It can be understood that both end faces of the variable cross-section sections in the center plate 51 in the second direction are first curved end faces 55, and the crests and troughs of the two first curved end faces 55 are the same but in opposite directions. The end face of the variable cross-section section in the clamping plate 521 facing the center plate 51 is a second curved end face 56, which is also wavy. The first curved end face 55 and the second curved end face 56 are in contact with each other. For example, in this embodiment, both the first curved end face 55 and the second curved end face 56 are smoothly transitioning curved surfaces with a sinusoidal cross-section.

[0066] The center plate 51 and the clamping plate component 52 are movable relative to each other in a first direction, and the connecting member 53 is extendable and self-resetting retractable in a second direction. To avoid the connecting member 53 obstructing the movement of the center plate 51 and the clamping plate component 52 in the first direction, at least one of the connecting holes on the center plate 51 and the clamping plate component 52 is an elongated hole 54. When the center plate 51 and the clamping plate component 52 move relative to each other, the connecting member 53 can move within the elongated hole 54. For example, the connecting hole on the center plate 51 is an elongated hole 54, and the connecting hole on the clamping plate 521 in the clamping plate component 52 is a round hole.

[0067] When the building structure is subjected to external force, causing the first base 1 and the second base 2 to move relative to each other in the first direction, the adjacent center plate 51 and clamping plate component 52 in the energy dissipation component 5 will move relative to each other synchronously. Since the clamping plate component 52 and the center plate 51 are both provided with variable cross-section sections, the two clamping plates 521 in the clamping plate component 52 will move relative to the center plate 51 in the second direction, the connecting member 53 will be stretched in the second direction, and at the same time the first plate 31 and the second plate 32 will move away from each other in the first direction, and the reset member 4 will be stretched.

[0068] In this embodiment, the energy-dissipating component dissipates energy through an energy-dissipating structure formed by one or more sets of central plates and clamping plate components. This achieves a frictional energy-dissipating design that combines multiple energy-dissipating structures in series and parallel, thereby improving the stability of the building structure. The connectors and reset components can achieve dual reset, thus coupling with the energy-dissipating component and exhibiting good synergy. After the external force disappears, it can automatically reset, ensuring the effective restoration of the building structure's function and significantly reducing the damage to the building structure caused by external forces such as earthquakes and wind.

[0069] The variable cross-section friction energy dissipation self-resetting support device of this utility model adopts a dual-core working mechanism with two sets of energy dissipation components, which can avoid the shortcomings of the single seismic resistance of the structure and improve the seismic reliability of the structure.

[0070] This utility model embodiment uses a corrugated variable cross-section friction design to dynamically adjust the contact pressure distribution, avoid local stress concentration, reduce the interface wear rate, and improve durability under long-term cyclic loading.

[0071] This utility model embodiment includes SMA bolts (connectors) and SMA stranded wires (reset components), providing a dual self-reset function to ensure that the self-reset support can achieve reset.

[0072] In this embodiment of the utility model, high-strength bolts (fixing components) are used to fix the energy-consuming component on the first mounting base and the second mounting base, thereby improving the stability of the connection structure between the energy-consuming component and the first and second bases.

[0073] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0074] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0075] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0076] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0077] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0078] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A variable cross-section friction energy dissipation self-resetting support device, characterized in that, include: First base; The second base, the first base and the second base are disposed opposite to each other in a first direction and are movable relative to each other in the first direction, and at least a portion of the first base and at least a portion of the second base are overlapped; A first plate and a second plate, wherein the first plate abuts against one end of the first base and the second base in a first direction, and the second plate abuts against the other end of the first base and the second base in a first direction; A reset member is connected between the first plate and the second plate. The reset member is extendable and self-resetting retractable to apply a force that brings the first plate and the second plate closer to each other, so that the variable cross-section friction energy dissipation self-resetting support device can self-reset after operation. An energy-consuming component, wherein there are multiple energy-consuming components, each energy-consuming component having a first connecting portion and a second connecting portion in a first direction, the first connecting portion being connected to a first mounting seat in a first base, and the second connecting portion being connected to a second mounting seat in a second base, the energy-consuming component including a center plate, a clamping plate component and a connector, the center plate and the clamping plate component being alternately arranged in a first direction, the clamping plate component including two clamping plates arranged parallel in a second direction, the center plate being disposed between two clamping plates in an adjacent clamping plate component and connected by a connector, the first direction and the second direction being orthogonal; The overlapping sections of the center plate and the clamping plate are both variable cross-section sections. The center plate and the clamping plate components can move relative to each other in the first direction. The connecting member can extend and retract self-reset along the second direction.

2. The variable cross-section friction energy dissipation self-resetting support device according to claim 1, characterized in that, The number of at least one of the center plate and the clamping plate components is multiple.

3. The variable cross-section friction energy dissipation self-resetting support device according to claim 2, characterized in that, The number of the center plate and the clamping plate components are both at least two, wherein the two center plates are respectively located at both ends of the energy-consuming component in a first direction, the first connecting part is provided on the center plate located at one end of the energy-consuming component, and the second connecting part is provided on the center plate located at the other end of the energy-consuming component.

4. The variable cross-section friction energy dissipation self-resetting support device according to claim 1, characterized in that, The opposite end faces of the variable cross-section section in the center plate are mirror-arranged first curved end faces, which are wavy. The end face of the variable cross-section section in the clamping plate facing the center plate is a second curved end face, which is also wavy. The first curved end face and the second curved end face are in contact with each other.

5. The variable cross-section friction energy dissipation self-resetting support device according to claim 1, characterized in that, The connector is a shape memory alloy bolt, and the fastener is a high-strength bolt.

6. The variable cross-section friction energy dissipation self-resetting support device according to claim 5, characterized in that, The reset element is a shape memory alloy stranded wire, and there are multiple reset elements arranged at intervals along the circumference of the first plate and the second plate.

7. The variable cross-section friction energy dissipation self-resetting support device according to claim 1, characterized in that, The first base includes a first side plate and a first vertical plate, the two first side plates are arranged parallel to each other and opposite to each other, and the first vertical plate is connected between the two first side plates; the second base includes a second side plate and a second vertical plate, the two second side plates are arranged parallel to each other and opposite to each other, and the second vertical plate is connected between the two second side plates. The two second side plates are located between the two first side plates.

8. The variable cross-section friction energy dissipation self-resetting support device according to claim 7, characterized in that, The first upright plate has a first mounting seat on each of its opposite sides, and the second upright plate has a second mounting seat on each of its opposite sides. The energy-consuming component is provided between the first mounting seat and the second mounting seat which are positioned opposite each other in the first direction. The first connecting part of the energy-consuming component is connected to the first mounting seat, and the second connecting part of the energy-consuming component is connected to the second mounting seat.

9. The variable cross-section friction energy dissipation self-resetting support device according to claim 7, characterized in that, The first base also includes a longitudinal beam and two crossbeams located at both ends of the longitudinal beam. The longitudinal beam and the two crossbeams are arranged in a U-shape. The two first side plates are respectively connected to the two crossbeams. The first upright plate is connected to the longitudinal beam. There is a gap between the first upright plate and the first side plate. The second upright plate and the second side plate are fitted together and fixed in place, with a portion of the second side plate located in the gap between the first upright plate and the first side plate.

10. The variable cross-section friction energy dissipation self-resetting support device according to claim 9, characterized in that, The first plate is provided with through slots corresponding to the first upright plate and the two crossbeams, and the second plate is provided with through slots corresponding to the second upright plate. The through slots in the center of the first plate and the through slots in the center of the second plate coincide in the first direction.

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