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

Abstract

The embodiment of the utility model discloses a variable cross-section friction energy dissipation assembly and a self-resetting supporting device, the variable cross-section friction energy dissipation assembly comprises a center plate, a clamping plate part and a connecting piece, the center plate and the clamping plate part are arranged along a first direction, and the clamping plate assembly comprises two clamping plates arranged along a second direction. Overlapping sections of the center plate and the two clamping plates are variable cross-section sections, the clamping plates are attached to the center plate, the center plate and the clamping plate component can move relatively in the first direction, and the first direction is orthogonal to the second direction; the connecting piece is arranged between the two clamping plates so that the two clamping plates can clamp the center plate, the connecting piece can stretch and retract in a self-reset mode in the second direction, and the two clamping plates can be far away from each other along with stretching of the connecting piece in the second direction. According to the variable-section friction energy dissipation assembly, the friction energy dissipation capacity can be adjusted, and the variable-section friction energy dissipation assembly has the self-resetting capacity.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of building anti-seismic technology, and concretely relates to a variable cross section friction energy dissipation component and a self-resetting bracing device. BACKGROUND

[0002] Under the action of an earthquake, infrastructure structures often suffer great damage. Traditional seismic design mainly relies on the inelastic deformation of members such as beams and columns to dissipate seismic energy. However, this method often results in severe damage to structural members, especially under strong seismic conditions, the structure cannot maintain normal functions, resulting in high post-earthquake repair costs and huge economic losses.

[0003] To reduce or avoid damage to building structures caused by earthquakes, self-resetting technology is introduced in building structures in the related art, which mainly relies on self-resetting devices to achieve the automatic resetting capability of building structures after an earthquake, thereby improving the seismic recovery performance thereof. However, the load curve of the self-resetting bracing in the related art is of single stiffness, which cannot meet the multi-level seismic fortification level requirement, and has poor applicability. SUMMARY

[0004] The utility model aims to at least solve one of the technical problems in the related art to some extent.

[0005] To this end, an embodiment of the utility model provides a variable cross section friction energy dissipation component capable of adjustable friction energy dissipation capability and having self-resetting capability.

[0006] An embodiment of the utility model further provides a self-resetting bracing device.

[0007] The variable cross section friction energy dissipation component of the embodiment of the utility model comprises:

[0008] a center plate;

[0009] a clamping plate component, the center plate and the clamping plate component are arranged along a first direction, the clamping plate component comprises two clamping plates arranged along a second direction, a partial section of the center plate is located between the two clamping plates, the overlapping sections of the center plate and the two clamping plates are all variable cross section sections, and the clamping plate and the center plate are in close contact, the center plate and the clamping plate component are relatively movable in the first direction, and the first direction and the second direction are orthogonal;

[0010] a connecting piece, the connecting piece is arranged between the two clamping plates to enable the two clamping plates to clamp the center plate, and the connecting piece is elongatable and self-resettingly retractable along the second direction;

[0011] When the force between the center plate and the clamping plate component connected with each other in the first direction is greater than the sliding force of the center plate and the clamping plate component connected with each other in the first direction, the center plate and the clamping plate component move relatively in the first direction, and the two clamping plates move away from each other in the second direction with the elongation of the connecting piece.

[0012] The variable cross-section friction energy dissipation assembly can adjust the pre-tightening force between the center plate and the clamping plate component through the connecting piece, and then control the sliding force between different groups of the center plate and the clamping plate component connected with each other, adjust the friction energy dissipation capacity, and the connecting piece can also realize self-resetting of the variable cross-section friction energy dissipation assembly by using the self-resetting capacity.

[0013] In some embodiments, the variable cross-section section has a first sub-section and a second sub-section arranged along a first direction, a cross-section size of the first sub-section gradually increases from an end close to the second sub-section to an end away from the second sub-section, and a cross-section size of the second sub-section gradually decreases from an end close to the first sub-section to an end away from the first sub-section.

[0014] In some embodiments, the number of at least one of the center plate and the clamping plate component is multiple, the center plate and the clamping plate component are alternately arranged in the first direction, and the adjacent center plate and clamping plate component are connected by the connecting piece.

[0015] In some embodiments, the sliding force of at least one group of the center plate and the clamping plate component connected with each other in the first direction is greater than the sliding force of other groups of the center plate and the clamping plate component connected with each other in the first direction.

[0016] In some embodiments, the center plate and the clamping plate component are provided with connecting holes, the connecting piece is arranged in the corresponding connecting hole between the center plate and the clamping plate component, and the connecting hole on the center plate is a long hole extending in the first direction.

[0017] In some embodiments, the connecting piece is a shape memory alloy bolt.

[0018] The self-resetting support device comprises:

[0019] A first support body;

[0020] A second support body, the first support body and the second support body are arranged oppositely along a first direction, and the first support body and the second support body are relatively movable in the first direction;

[0021] a first end plate abutting against one end of the first support body away from the second support body and one end of the second support body away from the first support body;

[0022] a second end plate abutting against one end of the second support body away from the first support body and one end of the first support body away from the second support body;

[0023] a reset member connected between the first end plate and the second end plate, the reset member being stretched in the first direction and exerting a reset force between the first support body and the second support body when the first support body and the second support body move away from or move closer to each other in the first direction;

[0024] The variable cross-section friction energy dissipation assembly according to any one of the preceding aspects, the two ends of the variable cross-section friction energy dissipation assembly in the first direction being connected with the first support body and the second support body respectively.

[0025] In some embodiments, the first support body comprises first side plates and a first vertical plate, the two first side plates being arranged in parallel and opposite to each other, and the first vertical plate being connected between the two first side plates; the second support body comprises second side plates and a second vertical plate, the two second side plates being arranged in parallel and opposite to each other, and the second vertical plate being connected between the two second side plates.

[0026] The first side plates and the second side plates correspond to each other and are in abutment in a direction perpendicular to the first direction.

[0027] In some embodiments, the reset member is a shape memory alloy wire.

[0028] In some embodiments, the shape memory alloy wire is a Ni-Ti shape memory alloy wire twisted from a Ni-Ti shape memory alloy wire, and the specification of the shape memory alloy wire is 1*7 or 7*7.

[0029] In some embodiments, the reset member is a plurality of reset members connected between the first end plate and the second end plate. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic view of a variable cross-section friction energy dissipation assembly according to an embodiment of the present application.

[0031] Figure 2 is a schematic view of a center plate according to an embodiment of the present application.

[0032] Figure 3 is a schematic view of a self-resetting support device according to an embodiment of the present application.

[0033] Figure 4is the schematic view of the first support body in the embodiment of the utility model.

[0034] Figure 5 is the schematic view of the second support body in the embodiment of the utility model.

[0035] Figure 6 is the assembly schematic view of the first support body and the second support body in the embodiment of the utility model.

[0036] Figure 7 is the connection schematic view of the reset member and the first end plate and the second end plate in the embodiment of the utility model.

[0037] Reference signs:

[0038] 1, variable cross section friction energy dissipation assembly;11, center plate;12, clamping plate;13, connecting piece;14, connecting hole;15, pin shaft;16, curved surface;17, pad plate;

[0039] 2, first support body;21, first side plate;22, first vertical plate;23, first connecting part;24, connecting rod;

[0040] 3, second support body;31, second side plate;32, second vertical plate;33, second connecting part;

[0041] 4, first end plate;

[0042] 5, second end plate;

[0043] 6, reset member. DETAILED DESCRIPTION

[0044] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0045] As Figure 1 and Figure 2 The variable cross section friction energy dissipation assembly of the embodiment of the utility model includes center plate 11, clamping plate component and connecting piece 13.

[0046] Center plate 11 and clamping plate component are arranged along the first direction, and clamping plate 12 component includes two clamping plates 12 arranged along the second direction, and the partial section of center plate 11 is located between two clamping plates 12, and the overlapping section of center plate 11 and two clamping plates 12 are all variable cross section sections, and clamping plate 12 and center plate 11 are attached, and center plate 11 and clamping plate component can be relatively moved in the first direction, and the first direction and the second direction are orthogonal, and connecting piece 13 is arranged between two clamping plates 12 to make two clamping plates 12 clamp center plate 11.

[0047] The connecting piece 13 is elongatable and self-resetting in the second direction, and the connecting piece 13 is optionally a shape memory alloy bolt, and the connecting piece 13 is made of a shape memory alloy and can automatically restore to an initial state after being stretched when an external force disappears. In order to synchronize the actions of the two clamping plates 12, the two end faces of the center plate 11 corresponding to the two clamping plates 12 are symmetrically arranged as two curved surfaces 16, and the two curved surfaces 16 on the center plate 11 are configured as variable cross-section sections of the center plate 11. In some embodiments, two center plates 11 are arranged and arranged in parallel in the second direction, and the positions between the two center plates are relatively fixed, for example, both are fixed on the same base plate (which can be a second vertical plate in the second support body in the following embodiment), and the end face of each center plate away from the other center plate is a curved surface. The clamping plate 12 and the center plate 11 are arranged one by one, and the end face of the clamping plate 12 corresponding to the center plate 11 is also a curved surface 16. The curved surface 16 on the clamping plate 12 is configured as a variable cross-section section of the clamping plate 12, and the curved surface 16 of the center plate 11 and the curved surface 16 of the clamping plate 12 are matched with each other and are attached to each other. Optionally, the curved surface 16 on the center plate 11 and the curved surface 16 on the clamping plate 12 are in a wavy line type.

[0048] When the force acting on the connected center plate 11 and clamping plate component in the first direction is greater than the sliding force of the connected center plate 11 and the clamping plate component in the first direction, the center plate 11 and the clamping plate component move relative to each other in the first direction, and the two clamping plates 12 are separated from each other in the second direction with the elongation of the connecting piece 13.

[0049] The sliding force is a force that can drive the connected center plate 11 and clamping plate component to move from a static state to a relative movement state in the first direction. The variable cross-section friction energy dissipation assembly has an initial state, in which the clamping plate 12 and the center plate 11 are attached. When the variable cross-section friction energy dissipation assembly is subjected to an external force in the first direction, the center plate 11 will extrude the two clamping plates 12 to move in the second direction. At this time, the connecting piece 13 is stretched, and as the two clamping plates 12 are separated from each other in the second direction, the center plate 11 and the two clamping plates 12 will also be displaced in the first direction, generating friction energy dissipation.

[0050] The variable cross-section friction energy dissipation assembly of the embodiment of the utility model can adjust the pre-tightening force between the center plate 11 and the clamping plate component through the connecting piece 13, thereby controlling the sliding force between different groups of connected center plates 11 and clamping plate components, adjusting the friction energy dissipation capacity, and the connecting piece 13 can also realize self-resetting of the variable cross-section friction energy dissipation assembly by using its own self-resetting capability.

[0051] As Figure 2As shown, in some embodiments, the variable cross-section section has a first sub-section and a second sub-section arranged along the first direction, the cross-sectional size of the first sub-section gradually increases from the end close to the second sub-section to the end away from the second sub-section, and the cross-sectional size of the second sub-section gradually decreases from the end close to the first sub-section to the end away from the first sub-section. Whether the connected central plate 11 and the clamping plate component are in tension or compression in the first direction, friction energy dissipation can be achieved through the action of the central plate 11 and the clamping plate 12, and the wavy curved surface 16 has a plurality of first sub-sections and a plurality of second sub-sections arranged alternately along the first direction.

[0052] Further, the number of at least one of the central plate 11 and the clamping plate component is multiple, the central plate 11 and the clamping plate component are arranged alternately in the first direction, and the adjacent central plate 11 and clamping plate component are connected through the connecting piece 13. For example, the number of central plates 11 is one, and the number of clamping plate components is two, so that the friction energy dissipation can be achieved through the relative movement between the adjacent central plate 11 and the clamping plate component, forming two groups of relatively independent friction energy dissipation structures.

[0053] When the variable cross-section friction energy dissipation assembly can achieve multi-stage friction energy dissipation through multiple groups of connected central plates 11 and clamping plate components, further adjusting the pre-tightening force of the connecting piece 13 between each group of connected central plates 11 and clamping plate components makes the sliding force of at least one group of connected central plates 11 and clamping plate components in the first direction greater than the sliding force of other groups of connected central plates 11 and clamping plate components in the first direction, which can play a role in different earthquake magnitudes.

[0054] The variable cross-section friction energy dissipation assembly of the embodiment of the utility model can adjust the pre-tightening force between the central plate 11 and the clamping plate component through the connecting piece 13, and further control the sliding force between different groups of connected central plates 11 and clamping plate components, which can achieve multi-stage energy dissipation and meet the fortification level requirements of multi-stage seismic resistance.

[0055] Since the connecting piece 13 is made of an elongated shape memory alloy, the performance parameters of the connecting piece 13 can be adjusted by changing the size, material ratio and other parameters of the connecting piece 13 between different groups of central plates 11 and clamping plate components, so that the deformation amount of the connecting piece 13 is different when subjected to different forces, and further the different groups of central plates 11 and clamping plate components have different feedbacks to different sizes of external forces.

[0056] When the variable cross-section friction energy dissipation assembly is subjected to an external force, the plurality of connecting members 13 are all elongated, the connecting members 13 are made of shape memory alloy, and because the shape memory alloy transforms from austenite to martensite during deformation, the deformation strains of different connecting members 13 are different, and thus the deformation will occur multiple times with variable stiffness, so that the load curve achieves the purpose of multi-stage yield.

[0057] In some embodiments, the center plate 11 and the clamping plate component are both provided with connecting holes 14, the connecting members 13 are arranged in the corresponding connecting holes 14 between the center plate 11 and the clamping plate component, and the connecting holes 14 on the center plate 11 are long strip holes extending in the first direction. By controlling the maximum displacement values between the center plate 11 and the clamping plate component at different stages, the displacement values of the self-resetting support device in small earthquakes, medium earthquakes and large earthquakes are controlled. The length of the long strip hole in the first direction limits the displacement interval of the connected center plate 11 and clamping plate component, so that the effective and stable connection of the center plate 11 and the clamping plate component can be ensured while the corresponding energy dissipation stage displacement value is controlled.

[0058] As shown in Figures 3-7 The self-resetting support device of the embodiment of the utility model, including first support body 2, second support body 3, first end plate 4, second end plate 5, reset piece 6 and the variable cross-section friction energy dissipation assembly of any one of the above, first support body 2 and second support body 3 are relatively arranged along the first direction, and first support body 2 and second support body 3 can move relatively in the first direction;The end of first support body 2 away from second support body 3 and the end of second support body 3 close to first support body 2 both abut with first end plate 4;The end of second support body 3 away from first support body 2 and the end of first support body 2 close to second support body 3 both abut with second end plate 5, and first end plate 4 and second end plate 5 are parallel and relatively arranged in the first direction. That is, when first support body 2 and second support body 3 are away from each other in the first direction, first end plate 4 will move synchronously with first support body 2, and second end plate 5 will move synchronously with second support body 3, when first support body 2 and second support body 3 are close to each other in the first direction, first end plate 4 will move synchronously with second support body 3, and second end plate 5 will move synchronously with first support body 2, in the above two cases, first end plate 4 and second end plate 5 are always away from each other.

[0059] The reset member 6 is connected between the first end plate 4 and the second end plate 5, when the first support body 2 and the second support body 3 move away from each other or move close to each other along the first direction, the reset member 6 is stretched in the first direction and exerts a reset force between the first support body 2 and the second support body 3; the two ends of the variable cross-section friction energy dissipation component in the first direction are connected with the first support body 2 and the second support body 3 respectively, and optionally, when the component at the end of the variable cross-section friction energy dissipation component is a clamping plate component, a pin shaft 15 is arranged on the first support body 2 and / or the second support body 3, the clamping plate component is connected with the pin shaft 15 and can move along the pin shaft 15 in the second direction, and the two clamping plates 12 in the clamping plate component can slide along the pin shaft 15 when they move away from or close to each other along the second direction without being limited by the first support body 2 or the second support body 3, and if the component at the end of the variable cross-section friction energy dissipation component is a center plate 11, the center plate 11 can be fixedly connected with the corresponding first support body 2 or second support body 3.

[0060] Optionally, the reset member 6 is a shape memory alloy wire. Preferably, the shape memory alloy wire is twisted from a Ni-Ti shape memory alloy wire, and the specification of the shape memory alloy wire is 1*7 or 7*7.

[0061] Optionally, there are multiple reset members 6, and the multiple reset members 6 are connected between the first end plate 4 and the second end plate 5, and the multiple reset members 6 are arranged uniformly along the circumference of the first end plate 4 and the second end plate 5, which can ensure that the first end plate 4 and the second end plate 5 are parallel and the force between them is always parallel to the first direction.

[0062] The two ends of the variable cross-section friction energy dissipation component in the first direction are connected with the first support body 2 and the second support body 3 respectively, when the first support body 2 and the second support body 3 are not subjected to external force, the variable cross-section friction energy dissipation component is in an initial state, when the first support body 2 and the second support body 3 are subjected to external force and move relatively in the first direction, the variable cross-section friction energy dissipation component can offset part of the external force through its own energy dissipation, and when the external force disappears, the variable cross-section friction energy dissipation component will restore to the initial state as much as possible under the action of the reset member 6 and the connecting member 13.

[0063] In the self-resetting support loading process, the SMA bolt (connecting member 13 made of shape memory alloy) and the SMA wire (reset member 6 made of shape memory alloy) are both elongated, the SMA will undergo a process of transformation from austenite to martensite, the SMA bolt and the SMA wire will each undergo a change in stiffness, and therefore the load-displacement curve of the self-resetting support will undergo two changes in stiffness, so that double-step yielding will occur. When there are multiple sets of connected center plates 11 and clamping plate components, there are multiple SMA bolts, and multiple-step yielding can be achieved by changing the characteristics of the multiple SMA bolts.

[0064] The first support body 2 and the second support body 3 in the embodiment of the utility model are arranged between the beams, columns and other components of the building structure, when the earthquake occurs, the first support body 2 and the second support body 3 will move relatively with the vibration, deformation or damage of the building structure, by adjusting the pre-tightening force of the connecting piece 13 applied between the clamping plate 12 and the center plate 11, the friction energy dissipation capacity of the variable cross-section friction energy dissipation assembly can be adjusted, so that the preset anti-seismic level requirement is reached, in addition, the reset piece 6 can provide the reset force for the first support body 2 and the second support body 3, and the building structure is driven to restore to the original state as far as possible with the reset of the first support body 2 and the second support body 3, and the post-earthquake damage degree of the building structure is reduced or avoided.

[0065] As Figures 4-6 Indicated, in some embodiments, the first support body 2 includes the first side plate 21 and the first vertical plate 22, two first side plates 21 are arranged in parallel and opposite, the first vertical plate 22 is connected between two first side plates 21, the second support body 3 includes the second side plate 31 and the second vertical plate 32, two second side plates 31 are arranged in parallel and opposite, the second vertical plate 32 is connected between two second side plates 31, the first side plate 21 and the second side plate 31 correspond one by one and are attached in the direction perpendicular to the first direction, can realize lateral limit, avoid the first support body 2 and the second support body 3 occur lateral deviation.

[0066] The structure of the first support body 2 and the second support body 3 is roughly same, but because need with first end plate 4 and second end plate 5 complete alignment assembly, therefore, two second side plates 31 of second support body 3 can be directly fixed in the width direction both sides of second vertical plate 32 by welding, and the end of two first side plates 21 of first support body 2 away from second support body 3 is provided with connecting rod 24, first vertical plate 22 is also connected with connecting rod 24, at this time, first vertical plate 22 is located between two first side plates 21, and first side plate 21 and first vertical plate 22 have gap between, the size of the gap is not less than the thickness size of second side plate 31, so that the end of second side plate 31 close to first support body 2 can abut with first end plate 4.

[0067] Further, the first vertical plate 22 has a first connecting portion 23, the second vertical plate 32 has a second connecting portion 33, and the two ends of the variable cross-section friction energy dissipation assembly are connected with the first connecting portion 23 and the second connecting portion 33 respectively. The first connecting portion 23 is arranged on the section of the first vertical plate 22 between the two first side plates 21, and the second connecting portion 33 is arranged on the section of the second vertical plate 32 between the two second side plates 31. The first connecting portion 23 and the second connecting portion 33 are through holes arranged on the corresponding vertical plate, when the end of the variable cross-section friction energy dissipation assembly is the clamping plate 12, the clamping plate 12 in the clamping plate component is connected with the corresponding vertical plate, and the gusset plate 17 can be arranged between the clamping plate 12 and the corresponding vertical plate, so that the clamping plate 12 is parallel to the first direction. The end of the first vertical plate 22 away from the second support body 3 and the end of the second vertical plate 32 away from the second support body 3 can be used to be connected with the building structure.

[0068] The self-resetting support device has a multi-stage yield working mechanism, and provides different loads, stiffnesses and energy dissipation capacities for different grades of earthquakes.

[0069] The self-resetting support device in the related art has a single stiffness, if the stiffness is designed to be too small, energy dissipation is provided in a small earthquake, and failure occurs in a large earthquake, if the stiffness is designed to be too large, energy dissipation cannot be achieved in a small earthquake, and the acceleration response is amplified in a large earthquake. Compared with the related art, the self-resetting support device with two-stage variable stiffness yield and self-resetting provided by the self-resetting support device with a reset member and a connecting member can make up for the deficiencies of the existing self-resetting support, and when the connecting member is multiple, multi-stage variable stiffness yield and self-resetting can be achieved.

[0070] The self-resetting support device has a double self-resetting device, which is an SMA bolt (a connecting member made of a shape memory alloy) and an SMA wire (a reset member made of a shape memory alloy), and can ensure that the self-resetting support can completely reset without residual deformation.

[0071] The self-resetting support device mainly uses friction energy dissipation, all components remain elastic in the entire self-resetting support working process, and do not need to be replaced after an earthquake or only need to be replaced by a simple friction plate to work again.

[0072] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0073] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0074] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0075] In the utility model, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0076] In the present application, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that the specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled person in the art can combine and combine the features of different embodiments or examples described in the present application and different embodiments or examples within the scope of the present application.

[0077] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A variable cross-section friction energy dissipation component, characterized in that: include: centerboard; A clamping plate component, wherein the center plate and the clamping plate component are arranged along a first direction, the clamping plate assembly includes two clamping plates arranged along a second direction, a partial section of the center plate is located between the two clamping plates, the center plate and the overlapping sections of the two clamping plates are both sections of variable cross-section, and the clamping plate and the center plate are in close contact, the center plate and the clamping plate component are relatively movable in the first direction, and the first direction and the second direction are orthogonal; a connecting member, the connecting member being provided between the two clamping plates so as to enable the two clamping plates to clamp the central plate, the connecting member being extendable and self-resetting and retractable along the second direction; When the force acting between the connected center plate and the splint component in the first direction is greater than the sliding force of the connected center plate and the splint component in the first direction, the center plate and the splint component can move relative to each other in the first direction, and make the two splints move away from each other in the second direction as the connecting member extends.

2. The variable cross-section friction energy dissipation component according to claim 1, characterized in that: The variable cross-section segment has a first sub-segment and a second sub-segment arranged along a first direction, the cross-sectional size of the first sub-segment gradually increases from one end close to the second sub-segment to one end away from the second sub-segment, and the cross-sectional size of the second sub-segment gradually decreases from one end close to the first sub-segment to one end away from the first sub-segment.

3. The variable cross-section friction energy dissipation component according to claim 1, characterized in that: There are multiple numbers of at least one of the center plates and the clamping plate parts. The center plates and the clamping plate parts are alternately arranged in the first direction, and adjacent center plates and the clamping plate parts are connected by the connecting member.

4. The variable cross-section friction energy dissipation component according to claim 3, characterized in that: The sliding force of at least one set of the connected center plates and the clamping plate parts in the first direction is greater than the sliding force of the other connected center plates and the clamping plate parts in the first direction.

5. The variable cross-section friction energy dissipation component according to claim 1, characterized in that: The center plate and the clamping plate component are both provided with connecting holes, the connecting members are arranged in the corresponding connecting holes between the center plate and the clamping plate component, and the connecting holes on the center plate are long holes extending along the first direction.

6. The variable cross-section friction energy dissipation component according to any one of claims 1 to 5, characterized in that: The connecting piece is a shape memory alloy bolt.

7. A self-resetting support device, characterized in that: include: a first support body; a second support body, wherein the first support body and the second support body are arranged opposite to each other along a first direction, and the first support body and the second support body are movable relative to each other in the first direction; a first end plate, the first end plate abutting against both an end of the first support body away from the second support body and an end of the second support body close to the first support body; a second end plate, the second end plate abutting against both an end of the second support body away from the first support body and an end of the first support body close to the second support body; a restoring member connected between the first end plate and the second end plate, wherein when the first support body and the second support body move away from each other or approach each other along the first direction, the restoring member is stretched in the first direction and applies a restoring force between the first support body and the second support body; The variable-section friction energy dissipation component according to any one of claims 1 to 6, wherein the two ends of the variable-section friction energy dissipation component in the first direction are respectively connected to the first support body and the second support body.

8. The self-resetting support device according to claim 7, characterized in that: The first support body includes a first side panel and a first vertical panel, the two first side panels are arranged in parallel and opposite to each other, and the first vertical panel is connected between the two first side panels; the second support body includes a second side panel and a second vertical panel, the two second side panels are arranged in parallel and opposite to each other, and the second vertical panel is connected between the two second side panels; The first side panels and the second side panels correspond to each other one by one and fit together in a direction perpendicular to the first direction.

9. The self-resetting support device according to claim 7, characterized in that: The reset element is a shape memory alloy strand.

10. The self-resetting support device according to claim 9, characterized in that: The shape memory alloy stranded wire is formed by twisting Ni-Ti shape memory alloy wire, and the specification of the shape memory alloy stranded wire is 1*7 or 7*7; And / or, there are multiple restoration members, and the multiple restoration members are connected between the first end plate and the second end plate.

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