CN110206178B

CN110206178B - Self-resetting energy-consumption supporting device

Info

Publication number: CN110206178B
Application number: CN201810166828.2A
Authority: CN
Inventors: 王斌; 朱松晔
Original assignee: Hong Kong Polytechnic University HKPU
Current assignee: Hong Kong Polytechnic University HKPU
Priority date: 2018-02-28
Filing date: 2018-02-28
Publication date: 2021-09-10
Anticipated expiration: 2038-02-28
Also published as: CN110206178A

Abstract

The invention provides a self-resetting energy-consuming supporting device which comprises a fixing frame, a supporting member and at least one pair of self-resetting components. The fixed frame comprises a fixed arm and two bearing arms, one end of each bearing arm is fixedly connected with the fixed arm and the two bearing arms are parallel to each other; one end of the supporting component extends into the space between the two bearing arms and is spaced from the fixed arm by a distance; at least one pair of self-resetting components are symmetrically arranged on two sides of the supporting member; the self-resetting assembly comprises one or more shape memory alloys, each shape memory alloy is provided with two connecting arms which are parallel to each other and a power consumption arm connected to the two connecting arms, and the two connecting arms are respectively connected to the supporting component and the bearing arm. The invention has good energy consumption capability and self-resetting capability.

Description

Self-resetting energy-consumption supporting device

Technical Field

The invention relates to the technical field of civil engineering energy dissipation and shock absorption, in particular to a self-resetting energy dissipation supporting device.

Background

The support is used as a lateral force resisting component, so that the lateral rigidity and lateral horizontal force resistance of the main body structure can be obviously improved, and the support is widely applied to multi-story and high-rise structures. However, the severe Buckling and fracture damages of the ordinary steel bracing occurred in north-ridge earthquake in 1994 and magical earthquake in 1995 in japan, which led domestic and foreign scholars to intensively study the ordinary steel bracing and search for a new bracing form, and the Buckling-restrained brace (BRB) was produced in this situation and has been widely used worldwide. The buckling restrained brace is an axial stressed component which can achieve full-section yielding under tension and compression, has more stable hysteretic behavior compared with the traditional common steel bracing component, has dual structural functions due to the characteristic, can provide necessary lateral stiffness for a main structure, and can play the role of an energy dissipation component. However, the buckling restrained brace has high design and processing requirements, a gap still remains between the core material and the outer sleeve after the core material is stressed, and meanwhile, a large amount of steel is consumed at the sleeve, the end head, the node and the like, so that the utilization rate of the steel is not high. More importantly, although the buckling restrained brace can achieve the expected earthquake fortification target of the structure through good energy consumption of the buckling restrained brace, the buckling restrained brace has obvious residual deformation after earthquake and poor self-resetting performance. The core material can not be checked on the premise of not damaging the outer sleeve, and whether the core material needs to be replaced or not is difficult to directly determine after an earthquake. Not only is the support difficult to repair, but also the overall structure is difficult to repair, the economic cost and the time cost of repair are high, the service function of the structure is easy to interrupt, and huge economic loss is brought to the society.

The above information disclosed in the background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not constitute prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

One main aspect of the present invention is to overcome the above-mentioned deficiencies in the prior art, and to provide a self-resetting energy-consuming supporting device which can consume seismic energy and has good self-resetting performance.

According to one aspect of the invention, a self-resetting energy-consuming supporting device comprises a fixing frame, a supporting member and at least one pair of self-resetting components. The fixed frame comprises a fixed arm and two bearing arms, one ends of the two bearing arms are fixedly connected with the fixed arm and are parallel to each other; one end of the supporting component extends into the space between the two bearing arms and is spaced from the fixed arm by a distance; at least one pair of self-resetting components are symmetrically arranged on two sides of the supporting member; the self-resetting assembly comprises one or more shape memory alloys, each shape memory alloy is provided with two connecting arms parallel to each other and energy consumption arms connected to the two connecting arms, and the two connecting arms are respectively connected to the supporting member and the bearing arm.

According to another aspect of the invention, a self-resetting energy-consuming supporting device comprises a fixing frame, a supporting member and at least one group of self-resetting components. The fixing frame comprises a cylinder body with a polygonal cross section and a cylinder bottom connected to one end part of the cylinder body; one end of the supporting member extends into the two cylinder bodies and is spaced from the cylinder bottom by a distance; each group of self-resetting assemblies comprises a plurality of shape memory alloys which are uniformly arranged along the circumferential direction of the supporting member, each shape memory alloy is provided with two connecting arms which are parallel to each other and energy dissipation arms which are connected with the two connecting arms, and the two connecting arms are respectively connected with the supporting member and the barrel.

According to the technical scheme, the invention has the advantages and positive effects that:

the self-resetting energy-consuming supporting device comprises a fixing frame and a supporting member which are connected together by a self-resetting component, wherein the self-resetting component comprises one or more shape memory alloys. When the self-resetting energy dissipation support deforms under stress, the deformation is concentrated on the shape memory alloy. The shape memory alloy as a high-performance metal material not only has unique shape memory property and super-elasticity property, but also has excellent fatigue resistance and corrosion resistance. The super-elastic property can not only provide self-resetting capability, but also provide energy consumption. That is, the self-resetting energy dissipation support device plays a role in dissipating seismic energy; on the other hand, after the earthquake is finished, the support device can be restored to the initial state due to the super-elasticity effect of the shape memory alloy, almost no residual deformation exists, and the self-resetting effect of the structure is realized.

Drawings

The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

FIG. 1 is a front view of a first embodiment of a self-resetting energy dissipating brace apparatus of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 1;

FIG. 6A is a schematic structural diagram of a U-shaped shape memory alloy in the self-resetting dissipative bracing apparatus shown in FIG. 1;

FIG. 6B is a top view of the U-shaped shape memory alloy shown in FIG. 6A;

FIG. 7 is a schematic view of the racetrack-type shape memory alloy in the self-resetting dissipative bracing apparatus of the present invention;

FIG. 8 is a schematic view of a first embodiment of a self-resetting energy dissipating brace apparatus of the present invention installed in a host structure;

FIG. 9 is a graph of force-displacement test results for the self-resetting energy dissipating brace shown in FIG. 1;

fig. 10 is a schematic structural diagram of a self-resetting energy-consuming brace apparatus according to a second embodiment of the present invention.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

The terms "a", "an" and "the" are used in this specification to denote the presence of one or more elements/components/parts/etc.; the terms "comprising" and "having" are used in an open-ended inclusive sense and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.

For convenience of description, the terms "top" and "bottom" are used herein, and mean: the self-resetting energy dissipation supporting device has the natural upper end as the top and the natural lower end as the bottom in the use state. Taking fig. 1 as an example, the upper end of the drawing is "top" and the lower end is "bottom". Other words of orientation such as "upper", "lower", etc. are also intended to be synonymous.

Embodiment mode 1

Referring to fig. 1 to 5 and 8, fig. 1 is a front view of a first embodiment of a self-resetting energy-consuming bracing apparatus according to the invention; FIG. 2 is a top view of FIG. 1; FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1; FIG. 4 is a cross-sectional view taken along line B-B of FIG. 1; FIG. 5 is a cross-sectional view taken along line C-C of FIG. 1; fig. 8 is a schematic view of the installation of the first embodiment of the self-resetting dissipative bracing apparatus of the invention in a main structure.

As shown in fig. 1 to 5 and 8, the self-resetting energy-consuming brace apparatus according to the first embodiment of the present invention includes a fixing frame 10, a brace member 4 and two sets of self-resetting components.

As shown in fig. 1, 2 and 8, the holder 10 includes a fixing arm 20 and two carrier arms 2. One end of each of the two carrying arms 2 is fixedly connected to the two ends of the fixing arm 20, and the other end is a free end, so that the two carrying arms 2 are parallel to each other. Securing arm 20 may be attached to a body structure 100 (see fig. 8).

Further, the fixing frame 10 further includes a first connecting section 21 fixed at a middle position of the fixing arm 20. The first connecting section 21 and the carrier arm 2 are on opposite sides of the fixing arm 20. A first mounting plate 24 having a plurality of screw holes may be fixed to the first connecting section 21, and one end of the reset energy consuming support of the present invention is connected to the main structure 100 by bolts (see fig. 8). The fixing arm 20 constituting the holder 10 may be a steel member such as round steel, square steel, channel steel, i-shaped steel, etc., and the bearing arm 2 and the first connection section 21 constituting the holder may be square steel.

In other embodiments, the fixing frame 10 may further include two reinforcing rods 22 symmetrically disposed on both sides of the first connecting section 21, wherein one end of each reinforcing rod 22 is fixed to the first connecting section 21, and the other end is fixed to both ends of the fixing arm 20.

While the above description illustrates only one embodiment of the fixing frame 10 of the self-resetting dissipative supporting device according to the present invention, other configurations are also possible and applicable to the present invention as long as the fixing frame includes two oppositely disposed carrying arms, which are not listed here.

As shown in fig. 1, 2 and 8, the support member 4 may be an elongated steel member, one end of which extends between the two carrier arms 2 and is spaced apart from the fixing arm 20, and the other end of which may be connected to a main structure 100. The support member 4 in the present invention is not necessarily an elongated structure and may be of a shorter size depending on the distance between the two support points in the main structure.

In one embodiment, the support member 4 further includes a second connecting section 43 fixed to an end portion thereof, and a second mounting plate 44 having a plurality of screw holes may be fixed to the second connecting section 43, and the other end of the energy dissipating support of the present invention is connected to the main body structure 100 by bolts (see fig. 8). In the self-resetting energy dissipation support device provided by the invention, under the condition of having the first connecting section 21 and the second connecting section 43, the central lines of the first connecting section 21, the second connecting section 43 and the support member 4 are preferably collinear, so that the stress balance is facilitated.

In an embodiment, the support member 4 comprises a first support arm 41 and a second support arm 42, which are fixedly connected, and the split structure is advantageous in that: on one hand, the assembly is convenient; on the other hand, materials with different cross sections can be used according to actual needs or design needs. For example, the rectangular steel, round steel or i-shaped steel used for the first support arm 41 may be arbitrarily combined with the rectangular steel or i-shaped steel used for the second support arm 42 in pairs.

As shown in fig. 1, 2, 6A, 6B and 7, fig. 6A is a schematic structural diagram of a U-shaped shape memory alloy in the self-resetting energy-consuming supporting device shown in fig. 1; FIG. 6B is a top view of the U-shaped shape memory alloy shown in FIG. 6A; fig. 7 is a schematic structural diagram of a racetrack-type shape memory alloy in a self-resetting energy-consuming supporting device according to the invention. The two groups of self-resetting components are symmetrically arranged on two sides of the supporting member 4; the self-resetting assembly comprises one or more shape memory alloys 1, each shape memory alloy 1 having two mutually parallel connecting arms 11 and a dissipative arm 12 connected to the two connecting arms 11, the two connecting arms 11 being connected to the second supporting arm 42 of the support element 4 and the carrying arm 2, respectively. Wherein the connection between the connecting arm 11 and the second supporting arm 42 and the connection between the connecting arm 11 and the carrier arm 2 may be a fixed connection, preferably a detachable connection, for example by means of one or more bolts 5, which facilitates maintenance, replacement of the shape memory alloy 1, etc.

The shape memory alloy 1 is preferably made of a material having superelasticity, such as NiTi, CuAlZn, CuAlMn, or CuAlBe, etc. The super elasticity (superelasticity) refers to a phenomenon that the memory alloy is deformed by far more than the elastic limit strain amount under the action of an external force, and the strain can be automatically recovered when the memory alloy is unloaded. However, the present invention is not limited thereto, and U-shaped shape memory alloys having suitable superelasticity may be applied to the present invention. In one embodiment, the yield load of the shape memory alloy 1 is less than the yield load of the support member 4 and the mounting bracket 10, which ensures that the deformation of the members is concentrated entirely at the shape memory alloy 1, while the support member 4 and the mounting bracket 10 are in an elastic state throughout the loading process.

As shown in fig. 6A and 6B, the width W of the connecting arm 11 is greater than the width B of the dissipating arm 12. Further, the energy dissipating arm 12 of the U-shaped shape memory alloy 1 includes two flat plate portions 121 respectively connecting the two connecting arms 11 and parallel to each other and an arc portion 122 connecting the two flat plate portions 121.

As shown in fig. 6A, the shape memory alloy 1 has a dissipative arm 12, and both ends of the dissipative arm 12 are connected to one end of two connecting arms 11, so that the shape memory alloy 1 forms a U-shape memory alloy. In another embodiment, as shown in fig. 7, the shape memory alloy 1 has two dissipative arms 12, the two dissipative arms 12 being connected to the two ends of the two connecting arms 11, respectively, so that the shape memory alloy 1 forms a racetrack shape memory alloy.

In the process of repeated deformation of the U-shaped or runway-shaped shape memory alloy 1, the contact and extrusion areas between the flat plate part 121 of the energy dissipation arm 12 and the first support arm 41 and the bearing arm 2 are changed, so that the yield point of the shape memory alloy 1 is changed continuously in the deformation process, stress cannot be concentrated on a certain fixed point, and the fatigue resistance of the shape memory alloy 1 is improved.

As shown in fig. 1 and 2, in some embodiments, the self-resetting energy dissipation brace of the present invention further includes at least one set of tie members, each set of tie members includes at least one tie rod 6, fig. 2 shows a set of tie members including two tie rods 6, and the two tie rods 6 are oppositely disposed on the front and rear sides of the carrier arm 2. Each tie rod 6 is connected at both ends to two carrier arms 2, respectively, and preferably the tie rods 6 are detachably connected to the carrier arms 2, for example mounted to the carrier arms 2 by means of bolts 7. Furthermore, the tie rod 6 can be connected vertically to the carrier arm 2. The function of the pull rod 6 is as follows: the two bearing arms 2 are ensured not to expand outwards in the process of stress, so that the shape memory alloy 1 is always sheared in the stress state. Of course, the invention does not necessarily involve a tension rod 6, but the tension rod 6 can also be omitted when the rigidity of the carrier arm 2 is sufficiently great, or a tension plate is fixed between the carrier arm 2 and the fixing arm 20, etc.

As shown in fig. 1, 4, the self-resetting assembly includes only 1 shape memory alloy 1, and in further embodiments, the self-resetting assembly may include a plurality of shape memory alloys 1, and the plurality of shape memory alloys 1 may be arranged in a plurality of rows (not shown) in a direction perpendicular to a centerline of the bracing member 4; in other embodiments, the self-resetting assembly comprises a plurality of shape memory alloys 1, and the plurality of shape memory alloys 1 are arranged in a plurality of rows (not shown) along a centerline of the support member 4.

The principle of action of the U-shaped shape memory alloy 1 shown in FIG. 6A is illustrated by way of example: under the action of earthquake, the deformation of the self-resetting energy-consuming supporting device is concentrated in the super-elastic shape memory alloy 1, and the effects of consuming earthquake energy and self-resetting are achieved. The load bearing characteristics of the shape memory alloy 1 are determined primarily by its width b, thickness t and diameter D, and the initial yield load F of a single U-shaped shape memory alloy 1 can be estimated according to the following formula:

wherein f is_yThe phase transition strength of the shape memory alloy material, b the width of the test piece, t the thickness of the test piece, and D the diameter of the bending radian of the test piece.

The deformation range of the shape memory alloy 1 is related to the length h. The bearing capacity and the deformability of the self-resetting energy-consuming support device can be determined by changing the width b, the thickness t, the diameter D and the length h of the U-shaped shape memory alloy 1, so that the design requirements of different requirements are met, and the design is flexible.

Referring to fig. 9, fig. 9 is a graph of force-displacement test results of the self-resetting energy dissipating support device shown in fig. 1. The self-resetting assembly comprises two U-shaped shape memory alloys 1, wherein the U-shaped shape memory alloys 1 are made of NiTi materials, and the U-shaped shape memory alloys 1 have the following dimensions: t is 5mm, D is 40mm, b is 20mm, and h is 30 mm. As shown in fig. 9, the displacement-bearing capacity hysteresis curve shows good flag-type hysteresis behavior, the energy consumption capacity of the flag-type hysteresis curve increases with the increasing of the loading displacement, and the flag-type hysteresis curve has almost no strength degradation and residual deformation in the loading process and has good self-resetting capacity.

Embodiment mode 2

Referring to fig. 9, fig. 9 is a schematic structural view of a second embodiment of the self-resetting energy-consuming brace apparatus of the present invention. The second embodiment of the self-resetting energy-consuming supporting device is different from the first embodiment in that: in the second embodiment of the self-resetting energy dissipation brace device, at least one pair of energy dissipation assemblies is added, and fig. 9 schematically shows one pair, and the pair of energy dissipation assemblies are symmetrically arranged on two sides of the brace member 4. The energy dissipation assembly comprises one or more steel elements, the designed shape of the steel elements is basically the same as that of the shape memory alloy 1, the steel elements are U-shaped steel as shown in fig. 9, and in addition, the steel elements can also be in a runway shape. The U-shaped steel has two second connecting arms 13 parallel to each other and a second dissipative arm 14 connected to the two second connecting arms 13, the two second connecting arms 13 being connected to the support member 4 and the carrier arm 2, respectively.

The yield bearing capacity of at least one pair of energy consumption components is less than 0.5 times of the yield bearing capacity of at least one pair of self-resetting components, for example, the yield bearing capacity of the energy consumption components is 0.4 times, 0.3 times, 0.2 times and the like of the yield bearing capacity of the self-resetting components, so that the self-resetting capacity of the self-resetting energy consumption supporting device is not influenced while the energy consumption capacity of the energy consumption components is improved. The number of the shape memory alloy 1 in the self-resetting component and the number of the U-shaped steel in the energy dissipation component can be determined according to the requirements of actual engineering.

In the second embodiment, two groups of pulling-connecting pieces are arranged along the central line direction of the support member 4, and the positions of the two groups of pulling-connecting pieces correspond to the energy dissipation component and the self-resetting component respectively. Each group of pulling parts comprises one or two front and back pulling rods 6, and two ends of each pulling rod 6 are respectively detachably connected with the two bearing arms 2.

Other structures of the second embodiment of the self-resetting energy-consuming supporting device are basically the same as those of the first embodiment, and are not described again.

Embodiment 3

The third embodiment of the self-resetting energy-consuming supporting device comprises a fixing frame, a supporting member and at least two groups of self-resetting components.

The holder comprises a base and a body which is connected, in particular detachably connected, to the base. The cross-section of the barrel may be polygonal, for example square.

One end of the supporting component extends into the two cylinder bodies and is spaced from the cylinder bottom by a distance.

The self-resetting assembly comprises a plurality of shape memory alloys uniformly arranged along the circumferential direction of the supporting member, each shape memory alloy is provided with two connecting arms which are parallel to each other and energy dissipation arms connected to the two connecting arms, and the two connecting arms are respectively connected to the supporting member and the barrel.

Other structures of the self-resetting energy-consuming supporting device in the third embodiment, such as the supporting member, the shape memory alloy and the like, are substantially the same as those of the foregoing embodiments, and are not described herein again.

The self-resetting energy-consuming supporting device has the following beneficial effects:

(1) the purposes of self-resetting and energy consumption are achieved. The self-resetting energy dissipation brace provided by the invention utilizes the super-elastic capacity of the shape memory alloy, not only plays a role of consuming earthquake energy in the earthquake action, but also almost has no residual deformation after the earthquake, achieves the self-resetting effect of the brace, and meets the requirement of rapidly recovering the use function after the earthquake.

(2) The structure is simple, and the design is flexible. The self-resetting component of the invention utilizes the characteristics of the superelasticity shape memory alloy material to realize the double purposes of energy consumption and self-resetting. The self-reset and energy consumption capabilities are realized without the traditional component combination mode. The bearing capacity and the deformability of different supports can be realized by changing parameters such as the width b, the thickness t, the bending diameter D, the length h and the number of the straight sections of the hyperelastic shape memory alloy section, and the performance of the lower supports required by different earthquake fortification requirements can be met.

(3) The construction is convenient. According to the self-resetting support, the self-resetting component and the surrounding steel components are detachably connected by bolts and the like, so that the self-resetting support is convenient to construct. And the inspection is convenient after the earthquake, and the replacement is convenient if needed.

(4) The economic effect is obvious. The self-resetting energy dissipation supporting device has the advantages that the deformation of the self-resetting energy dissipation supporting device is mostly concentrated on the self-resetting components, and the sizes of the other steel components can be designed more economically. More importantly, the structure realizes the self-resetting effect after the earthquake, so that the using function of the structure is not interrupted, excessive reinforcement and repair are not carried out on the structure, a large amount of economic cost and time cost are saved, and the economic effect is obvious.

Research shows that the invention utilizes the super-elastic capability of the shape memory alloy to realize double effects of energy consumption and structure self-resetting in the earthquake action. The self-resetting energy dissipation support is simple in structure, flexible in design and convenient to construct, the self-resetting capability of the self-resetting energy dissipation support can effectively reduce the cost of structural restoration or reinforcement, the restorability of the structure after an earthquake can be effectively and quickly integrally improved, and the self-resetting energy dissipation support has outstanding beneficial technical effects in the field of civil engineering.

It is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the description. The invention is capable of other embodiments and of being practiced and carried out in various ways. The foregoing variations and modifications fall within the scope of the present invention. It will be understood that the invention disclosed and defined in this specification extends to all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. All of these different combinations constitute alternative aspects of the present invention. The embodiments described in this specification illustrate the best mode known for carrying out the invention and will enable those skilled in the art to utilize the invention.

Claims

1. A self-resetting energy dissipating support device, comprising:

the fixing frame (10) comprises a fixing arm (20) and two bearing arms (2) with one ends fixedly connected to the fixing arm (20) and parallel to each other;

one end of the supporting component (4) extends into the space between the two bearing arms (2) and is spaced from the fixed arm (20) by a certain distance;

at least one pair of self-resetting assemblies, each pair of self-resetting assemblies being symmetrically arranged on both sides of the bracing member (4); the self-resetting assembly comprises one or more U-shaped shape memory alloys (1), each shape memory alloy (1) is provided with two connecting arms (11) which are parallel to each other and energy consumption arms (12) connected to the two connecting arms (11), and the two connecting arms (11) are respectively connected to the supporting member (4) and the bearing arm (2);

at least one pair of energy dissipation components, wherein each pair of energy dissipation components is symmetrically arranged on two sides of the supporting member (4); the dissipative assembly comprising one or more steel elements, each of said steel elements having two second connecting arms (13) parallel to each other and a second dissipative arm (14) connected to both of said second connecting arms (13), both of said second connecting arms (13) being connected to the support member (4) and the carrier arm (2), respectively, wherein the yield bearing capacity of the at least one pair of dissipative assemblies is less than 0.5 times the yield bearing capacity of the at least one pair of self-resetting assemblies,

the energy consumption arm comprises two flat plate parts (121) which are respectively connected with the two connecting arms (11) and are parallel to each other and an arc-shaped part (122) which is used for connecting the two flat plate parts (121), the width of the arc-shaped part (122) is smaller than that of the connecting arms (11), and the yield bearing capacity of the shape memory alloy (1) is calculated according to the following formula:

wherein f is_yIs the phase transition strength of the shape memory alloy material, b is the width of the arcuate portion (122), t is the thickness of the arcuate portion (122), and D is the diameter of the arcuate portion (122).

2. Self-resetting dissipative support device according to claim 1, wherein the dissipative arm (12) comprises two flat portions (121) parallel to each other connecting the two connecting arms (11) respectively and an arc-shaped portion (122) connecting the two flat portions (121).

3. Self-resetting dissipative support device according to claim 1, characterized in that the connection between the connecting arm (11) and the support element (4) is a detachable connection and/or the connection between the connecting arm (11) and the carrying arm (2) is a detachable connection.

4. Self-resetting dissipative support device according to claim 1, characterized in that said shape memory alloy (1) is made of a material having superelasticity.

5. Self-resetting dissipative support device according to claim 1, characterized in that the yield bearing capacity of the shape memory alloy (1) is smaller than the yield bearing capacity of the support member (4), the fixing frame (10).

6. Self-resetting dissipative support device according to claim 1, characterized in that said support element (4) comprises a first (41) and a second (42) fixedly connected support arm, the connecting arm (11) of the shape memory alloy (1) being connected to the second support arm (42).

7. Self-resetting energy-consuming support device according to claim 6, wherein the first support arm (41) is a rectangular, round or I-shaped steel and/or the second support arm (42) is a rectangular or I-shaped steel.

8. The self-resetting energy-consuming brace device according to claim 1, wherein the fixing frame (10) further comprises a first connecting section (21) fixed to the fixing arm (20), the center line of the first connecting section (21) is collinear with the center line of the brace member (4), and/or the brace member (4) further comprises a second connecting section (43) fixed to an end thereof, the center line of the second connecting section (43) is collinear with the center line of the brace member (4).

9. The self-resetting energy-dissipating support device according to any one of claims 1 to 8, further comprising at least one set of tie members, each set of tie members comprising at least one tie rod (6), both ends of the tie rod (6) being respectively connected to the two carrying arms (2).

10. Self-resetting dissipative support device according to claim 9, wherein the tension rod (6) is detachably connected to the carrying arm (2) and/or the tension rod (6) is connected perpendicularly to the carrying arm (2).

11. The self-resetting energy-dissipating support device according to any one of claims 1 to 8, wherein the self-resetting assembly comprises a plurality of shape memory alloys (1), and the plurality of shape memory alloys (1) are arranged in a plurality of rows in a direction perpendicular to a centerline of the support member (4) and/or in a plurality of columns in the direction of the centerline of the support member (4).

12. Self-resetting dissipative support device according to claim 11, characterized in that a plurality of shape memory alloys (1) are arranged in two rows, the support element (4) comprising a first support arm (41) and a second support arm (42) being fixedly connected, the connecting arm (11) of the shape memory alloys (1) being connected to the first support arm (41).

13. Self-resetting dissipative support device according to claim 1, wherein the second dissipative arm (14) comprises two second plate portions parallel to each other connecting the two second connecting arms (13) respectively and a second arc-shaped portion connecting the two second plate portions.

14. The self-resetting dissipative support device according to claim 13, wherein the steel element has two second dissipative arms (14), the two second dissipative arms (14) being connected to the two ends of the second connecting arm (13), respectively, so as to form a racetrack shaped steel element; or the shape memory alloy (1) has a second dissipative arm (14) connected to an end of the second connecting arm (13) so as to form a U-shaped steel element.

15. Self-resetting dissipative support device according to claim 1, characterized in that the connection between the second connecting arm (13) and the support element (4) is a detachable connection and/or the connection between the second connecting arm (13) and the carrying arm (2) is a detachable connection.

16. The self-resetting dissipative bracing device according to claim 1, wherein the dissipative assembly comprises a plurality of steel elements, and wherein the plurality of steel elements are arranged in a plurality of rows in a direction perpendicular to the centerline of the bracing member (4) and/or in a plurality of columns in the centerline direction of the bracing member (4).

17. Self-resetting dissipative support device according to claim 1, wherein for each pair of self-resetting and/or dissipative components, a set of tie-downs is provided, each set of tie-downs comprising at least one tie-bar (6), the two ends of said tie-bar (6) being connected to the two carrying arms (2), respectively.

18. A self-resetting energy dissipating support device, comprising:

the fixing frame comprises a cylinder body with a polygonal cross section and a cylinder bottom connected to one end part of the cylinder body;

one end of the supporting component extends into the two cylinder bodies and is spaced from the cylinder bottom by a distance;

each self-resetting assembly comprises a plurality of U-shaped shape memory alloys uniformly arranged along the circumferential direction of the supporting member, each shape memory alloy is provided with two mutually parallel connecting arms and energy consumption arms connected with the two connecting arms, and the two connecting arms are respectively connected with the supporting member and the barrel;

at least one pair of energy dissipation components, wherein each pair of energy dissipation components is symmetrically arranged on two sides of the supporting member (4); the dissipative assembly comprising one or more steel elements, each of the steel elements having two second connecting arms (13) parallel to each other and a second dissipative arm (14) connected to the two second connecting arms (13), the two second connecting arms (13) being connected to the bracing member (4) and the barrel, respectively, wherein the yield load of the at least one pair of dissipative assemblies is less than 0.5 times the yield load of the at least one pair of self-resetting assemblies,