Energy dissipation buckling restraint support device

Abstract

The present invention relates to the field of earthquake-resistant technology of building structure engineering, and specifically to an energy-absorbing flexural restraint support device. The device includes an external restraint component and an energy-absorbing core material limited inside the external restraint component, the energy-absorbing core material is used to connect with building components, the external restraint component includes restraints spliced ​​in sequence, adjacent restraints are spliced ​​and fixed by positioning components, the positioning components are used to fix the positions of each restraint component with respect to each other to limit the size of the area enclosed by each restraint component; the energy-absorbing core material is limited inside the area enclosed by each restraint component. The present invention sets a positioning component between each restraint component, which can fix the relative position of each restraint component from each direction, so as to ensure that each restraint component will not change the size of the cavity formed by them even if it is squeezed by the energy-absorbing core material, so that the deformation of the energy-absorbing core material inside the cavity is controlled within the range of the recoverable deformation, thereby preventing the energy-absorbing core material from breaking due to excessive deformation.

Description

Technical Field

[0001] The invention relates to the technical field of earthquake-resistant building structure engineering, and in particular to an energy-dissipating buckling restraint bracing device. Background Art

[0002] Buckling restrained brace is an important structural lateral force resisting and energy dissipating component. In recent years, it has been widely used in the field of construction in my country. It consumes earthquake input energy through metal yield hysteresis, thereby reducing the damage to the main structure. Buckling restrained brace consists of connection section, energy dissipation section, restraint component, unbonded material and other parts. Under the action of earthquake, the core force-bearing component of buckling restrained brace is effectively restrained by the peripheral restraint component to avoid overall or local instability, and can dissipate energy through tensile and compressive yield. In this way, buckling restrained brace can be used as an ordinary support and can also play its energy dissipation role, so that the main structure will not be damaged or the damage is small under the action of earthquake. It is a more ideal energy dissipation and shock reduction method.

[0003] The energy-absorbing buckling restraint support device in the prior art changes its position due to the external restraint component being squeezed, thereby causing the external restraint component to be unable to control the deformation of the energy-absorbing core material inside it, thereby causing the energy-absorbing core material to deform excessively. The energy-absorbing core material after excessive deformation cannot recover the deformation again, that is, the energy-absorbing core after excessive deformation no longer has the function of absorbing seismic energy. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an energy dissipation buckling restraint support device, which can limit the position of each external restraint component, thereby limiting the deformation of the energy dissipation core material and preventing it from excessive deformation.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] An energy dissipation buckling restraint support device, comprising an external restraint assembly and an energy dissipation core material limited inside the external restraint assembly, wherein the energy dissipation core material is used to connect with building components, and is characterized in that: the external restraint assembly comprises restraint members spliced ​​in sequence, and adjacent restraint members are spliced ​​and fixed by positioning members, and the positioning members are used to fix the positions of the restraint members relative to each other to limit the size of the area enclosed by the restraint members;

[0007] The energy dissipation core material is confined to the interior of the area enclosed by each restraining member.

[0008] Furthermore, the energy-absorbing core material includes energy-absorbing sections, and the energy-absorbing sections include plate-shaped energy-absorbing sections and hole-shaped energy-absorbing sections alternately arranged along the length direction. The plate-shaped energy-absorbing sections are solid energy-absorbing plates, and the hole-shaped energy-absorbing sections are provided with energy-absorbing holes spaced side by side.

[0009] Furthermore, the energy-absorbing core material further comprises a connecting section located at the end of the energy-absorbing section, and the connecting section is connected to the plate-shaped energy-absorbing section;

[0010] The yield point of the energy absorbing section composed of the plate-shaped energy absorbing section and the hole-shaped energy absorbing section is lower than the yield point of the connecting section;

[0011] The connecting section is used to connect with the building components located on both sides of the energy-consuming core material.

[0012] Furthermore, the end faces of the restraining members are provided with raised butt joint edges along the length direction;

[0013] The positioning member includes a positioning hole arranged on the edge of the protruding butt joint edge, and a positioning rod arranged on the corresponding end surface of the restraining member adjacent to the restraining member where the positioning hole is located, and the positioning rod is adapted to the positioning hole;

[0014] Each convex butt edge cooperates with each restraining member to form a cavity, and the energy-consuming core material is located in the cavity.

[0015] Further preferably, a cavity for pouring concrete is provided inside the restraining member, and a grouting hole and a through hole both connected to the cavity are provided on the side of the restraining member, and the height of the grouting hole is lower than the height of the through hole.

[0016] Further preferably, a limiting groove is provided in an annular shape along the outer wall of the external constraint component formed by splicing the constraint member and the raised mating edge, and the positioning member also includes a fastener which is sleeved on the outer wall of the external constraint component and located inside the limiting groove.

[0017] Furthermore, the energy-absorbing core material includes an energy-absorbing section, and the cross section of the energy-absorbing section is in a straight line shape; the energy-absorbing section includes alternately arranged plate-shaped energy-absorbing sections and hole-shaped energy-absorbing sections, and the plate surface of the hole-shaped energy-absorbing section is provided with energy-absorbing holes spaced side by side.

[0018] Further preferably, the restraining members are located on both sides of the energy dissipating core material;

[0019] The restraining member is of segmented type, and the segmented restraining member includes a middle restraining section and end restraining sections located at both ends of the middle restraining section; a limiting groove is provided on the inner side surface of the end restraining section;

[0020] The energy dissipation core material comprises connecting sections located at both ends of the energy dissipation section, and the yield point of the energy dissipation section is lower than the yield point of the connecting section;

[0021] The two side plate surfaces of the connecting section are connected with stiffening plates, and the stiffening plates are located in the limiting grooves.

[0022] Furthermore, the cross section of the end of the connecting section connected to the building component and the stiffening plate is cross-shaped, the cross section of the end of the connecting section connected to the energy absorption section is straight-line, and the straight-line end of the connecting section extends into the interior of the middle constraint section.

[0023] Further preferably, an end convex section is provided on the end surface of the end restraining section along the length direction, and a middle convex section is provided on the end surface of the middle restraining section along the length direction, and the end convex section and the middle convex section are connected to each other;

[0024] Positioning holes are arranged on the edges of the end raised section and the middle raised section, and a positioning rod is arranged on the end surface of the restraining member spliced ​​with the restraining member where the positioning hole is located; the positioning rod is located inside the positioning hole, and the positioning hole and the positioning rod constitute a positioning member.

[0025] The beneficial effects of the present invention are as follows:

[0026] (1) The external restraint assembly of the present invention is composed of various restraint parts, so that the external restraint assembly of the present invention is easy and reliable to assemble and can be effectively assembled.

[0027] However, the energy-absorbing core material connected to the building components is deformed by the earthquake, causing the restraining parts to change their positions due to the squeezing of the energy-absorbing core material, which in turn causes the size of the cavity inside the external restraining assembly composed of various restraining parts for accommodating the energy-absorbing core material to change. After the size change, the cavity no longer has the function of restraining the energy-absorbing core material.

[0028] The present invention sets a positioning component between each restraint member, which can fix the relative position between each restraint member from all directions, thereby ensuring that even if each restraint member is squeezed by the energy-absorbing core material, the size of the cavity formed by them will not change, so that the deformation of the energy-absorbing core material inside the cavity is controlled within the range of the recoverable deformation, thereby preventing the energy-absorbing core material from breaking due to excessive deformation.

[0029] (2) The restraining parts in the external restraining assembly of the present invention are assembled by means of positioning rods and positioning holes, which effectively restricts the longitudinal and lateral movement of each restraining part. The fastener of the present invention can well fasten the external restraining assembly into a whole, avoid welding, and realize assembly.

[0030] From the above analysis, it can be seen that the positioning member composed of the positioning rod and the positioning hole in the present invention can not only facilitate the assembly of the external constraint component, but also prevent the relative change of the position of each constraint member, thereby further preventing the internal energy-consuming core material from being damaged due to excessive deformation.

[0031] (3) A limited groove is set on the external constraint component to effectively ensure the position of the fastener and prevent sliding.

[0032] (4) The hole-shaped energy absorbing section of the energy absorbing core material of the present invention is provided with longitudinal energy absorbing holes, and the energy absorbing section of the present invention is reasonably divided into two different energy absorbing sections, namely the hole-shaped energy absorbing section and the plate-shaped energy absorbing section. The hole-shaped energy absorbing section can allow the deformation of the section to be greater than that of the plate-shaped energy absorbing section, thereby realizing multi-stage energy absorption and better exerting the energy absorption and shock absorption effect.

[0033] (5) The energy dissipation section of the energy dissipation core material uses low yield point steel, so that the deformation position of the entire energy dissipation core material is controlled in the energy dissipation section that can consume seismic energy while protecting other parts from being damaged, which has a good energy dissipation and shock absorption effect.

[0034] (6) Each restraining member is provided with a cavity inside to reduce the weight of the device of the present invention; lightweight mortar and other materials can be selectively injected into the cavity to improve the overall rigidity of the restraining tube; grouting holes and through holes are provided on the surface of the restraining tube. Such a design enables the present invention to discharge the internal air when pouring mortar, thereby effectively ensuring the density of the grouting.

[0035] (7) The energy-absorbing core material is divided into an energy-absorbing section and a connecting section. The connecting section is made of high-strength steel to prevent the energy-absorbing core material from being damaged during an earthquake. A portion of the connecting section is inside the external constraint assembly to prevent the energy-absorbing core material from being damaged at the end of the external constraint assembly during an earthquake. A portion of the connecting section is outside the external constraint assembly, and there is a certain distance between the connecting end plate and the external constraint assembly, thereby ensuring that the energy-absorbing core material has a good deformation space during an earthquake.

[0036] (8) The end of the energy-absorbing core material of the present invention is composed of a straight-line connection section and a vertically arranged stiffening plate, so that the end section of the energy-absorbing core material is cross-shaped. The cross-shaped end can well transfer the force on the connecting end plate located on the end of the energy-absorbing core material to the energy-absorbing core material, thereby avoiding end damage.

[0037] The connecting section of the present invention extends into the middle constraint section, so that the energy dissipation section is always within the middle constraint section under the action of an earthquake, thereby avoiding sudden changes in constraint conditions of the energy dissipation section under the action of an earthquake.

[0038] The change in the cross section of the connecting section of the energy dissipation core material of the present invention can effectively and reasonably transfer the force to the straight-line energy dissipation section, thereby avoiding concentrated force damage.

[0039] (9) The design of the end restraint section of the present invention can provide protection for the cross-shaped cross-section portion of the energy-absorbing core material connection section, and at the same time provide space for the tensile deformation of the cross-shaped portion under the action of an earthquake; the design of the middle restraint section can provide restraint and protection for the energy-absorbing section of the energy-absorbing core material.

[0040] (10) There is a certain distance between the connecting end plate and the external restraint assembly of the present invention, thereby ensuring that the energy-absorbing core material has a good deformation space during earthquake action. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a side view of the energy dissipation buckling restraint support device composed of four groups of restraint members of the present invention;

[0042] Figure 2 For the present invention Figure 1 The side view after removing the connecting end plate, lifting lugs, energy dissipation core material and fasteners;

[0043] Figure 3 A structural diagram of a restraining member of an integrated structure of the present invention;

[0044] Figure 4 It is a structural diagram of the cross-shaped energy dissipation core material of the present invention;

[0045] Figure 5 For the present invention Figure 1 Sectional view at AA in the middle;

[0046] Figure 6 It is a side view of the energy dissipation buckling restraint support device composed of two groups of restraint members of the present invention;

[0047] Figure 7 It is a schematic diagram of two sets of restraining members of the present invention being reinforced and connected by connecting members;

[0048] Figure 8 It is a structural diagram of the segmented restraint of the present invention;

[0049] Fig. 9 It is a structural diagram of the straight-line energy-dissipating core material of the present invention;

[0050] Fig.10 For the present invention Figure 6 Cross-section at the middle BB;

[0051] Fig.11 For the present invention Figure 6 Cross-section view at CC.

[0052] The meanings of the symbols in the figure are as follows:

[0053] 1-external restraint assembly 11-restraint member 111-middle restraint section 112-end restraint section

[0054] 112a-limiting groove 113-groove 114-connecting piece 12-raised butt edge 12a-middle raised section 12b-end raised section 13-cavity 14-positioning rod 15-positioning hole 16-grouting hole 17-through hole

[0055] 18-Limiting tongue and groove 19-Shock absorber

[0056] 2-Energy absorbing core material 21-Plate type energy absorbing section 22-Hole type energy absorbing section 23-Connecting section 24-Stiffening plate

[0057] 3-Connecting end plate 4-Fasteners 5-Lifting ear DETAILED DESCRIPTION

[0058] The following is a clear and complete description of the technical solution of the present invention in combination with the embodiments and the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0059] Example 1

[0060] An energy dissipation buckling restraint support device comprises an external restraint component 1 and an energy dissipation core material 2 limited inside the external restraint component 1, wherein the energy dissipation core material 2 is used for connecting with building components.

[0061] like Figure 5 As shown, the external restraint assembly 1 includes four sets of restraint members 11 spliced ​​in sequence. Figure 3 As shown, a cavity 13 for pouring concrete is provided inside the restraining member 11 , and a grouting hole 16 and a through hole 17 both connected to the cavity 13 are provided on the side of the restraining member 11 , and the height of the grouting hole 16 is lower than the height of the through hole 17 .

[0062] like Figure 5 As shown, from the upper left corner in clockwise order, there are the first group of restraints 11, the second group of restraints 11, the third group of restraints 11, and the fourth group of restraints 11. Figure 3 As shown, the end surface of each group of restraining members 11 is provided with a raised butt joint edge 12 along the length direction, and a positioning hole 15 is provided on the edge of the raised butt joint edge 12. Positioning rods 14 are sequentially provided along the length direction on the end surface adjacent to the restraining member 11 where the raised butt joint edge 12 is located. The end surface of the restraining member 11 where the raised butt joint edge 12 is located and the end surface of the restraining member 11 where the positioning rod 14 is located are both located on the inner side surface of the external restraining component 1. Figure 5As shown, during assembly: first assemble the first group of restraints 11 and the second group of restraints 11 of the upper part, that is, insert the positioning rods 14 on the second group of restraints 11 into the positioning holes 15 on the first group of restraints 11; then assemble the third group of restraints 11 and the fourth group of restraints 11 of the lower part, that is, insert the positioning rods 14 on the fourth group of restraints 11 into the positioning holes 15 on the third group of restraints 11. After the two parts are assembled, place the energy-absorbing core material 2 between the two parts of the external restraint assembly 1, and then insert the corresponding positioning rods 14 on the two parts into the corresponding positioning holes 15, so as to complete the assembly of the entire external restraint assembly 1, and then cooperate with the following Figure 1 The annular fastener 4 shown in the figure is sleeved on the outside of each binding member 11, so that the four groups of binding members 11 can be firmly fixed together. Figure 2 In the limiting groove 18 shown, the positioning hole 15, the positioning rod 14, and the fastener 4 constitute a positioning member, which is used to prevent the position of each constraint 11 from changing and causing excessive deformation of the internal energy-consuming core material 2. The height of the raised butt edge 12 is 80mm-100mm and the width is 40mm-60mm; the height of the constraint 11 is 240mm-260mm and the width is 190mm-210mm.

[0063] like Figure 4 As shown, the energy-absorbing core material 2 of this embodiment is cross-shaped, and the energy-absorbing core material 2 includes an energy-absorbing section and a connecting section 23 located at both ends of the energy-absorbing section. The energy-absorbing section includes a plate-shaped energy-absorbing section 21 and a hole-shaped energy-absorbing section 22 alternately arranged along the length direction. The plate-shaped energy-absorbing section 21 is a solid energy-absorbing plate, and the hole-shaped energy-absorbing section 22 is provided with energy-absorbing holes spaced side by side. The connecting section 23 is connected to the plate-shaped energy-absorbing section 21. The yield point of the energy-absorbing section formed by the plate-shaped energy-absorbing section 21 and the hole-shaped energy-absorbing section 22 is lower than the yield point of the connecting section 23, that is, the connecting section 23 is a high-strength steel or a normal-strength steel, and the energy-absorbing section is a low-yield point steel. The connecting section 23 is used to connect with the building components located on both sides of the energy-absorbing core material 2.

[0064] After assembly, the entire energy dissipation section of the energy dissipation core material 2 is located in the cavity formed by the four groups of restraint members 11, such as Figure 5 As shown, a gap is provided between the energy dissipation section of the energy dissipation core material 2 and the inner wall of the cavity, and the gap can be filled with non-bonding materials such as soft glass. Figure 1 As shown, the connecting section 23 extends from the inside of the external restraint assembly 1 composed of four groups of restraint members 11 to the outside of the external restraint assembly 1. The end of the connecting section 23 located outside the external restraint assembly 1 is fixedly connected to a connecting end plate 3, and a hanging hole is provided on the connecting end plate 3, which is used to connect with a building component. A lifting lug 5 is provided on the outside of the external restraint assembly 1, and the entire device can be lifted to a specified position through the lifting lug 5.

[0065] Example 2

[0066] An energy dissipation buckling restraint support device comprises an external restraint component 1 and an energy dissipation core material 2 limited inside the external restraint component 1, wherein the energy dissipation core material 2 is used for connecting with building components.

[0067] In this embodiment, Figure 6 and Fig.11 As shown, the external restraint assembly 1 is composed of two sets of butt-jointed restraint members 11. Figure 8 As shown, the restraining member 11 is segmented, and the segmented restraining member 11 includes a middle restraining section 111 and end restraining sections 112 located at both ends of the middle restraining section 111. A limiting groove 112a is provided on the inner side surface of the end restraining section 112. An end raised section 12b is provided on the end surface of the end restraining section 112 along the length direction, and a middle raised section 12a is provided on the end surface of the middle restraining section 111 along the length direction, and the end raised section 12b and the middle raised section 12a are connected to each other. Positioning holes 15 are provided on the edges of the end raised section 12b and the middle raised section 12a, and a positioning rod 14 is provided on the end surface of the restraining member 11 spliced ​​with the restraining member 11 where the positioning hole 15 is located. The positioning rod 14 is located inside the positioning hole 15, and the positioning hole 15 and the positioning rod 14 constitute a positioning member.

[0068] like Fig.11 , the positioning rods 14 on one set of the restraining members 11 are inserted into the positioning holes 15 of the other set of the restraining members 11, and the positioning rods 14 of the other set of the restraining members 11 are inserted into the positioning holes 15 of the one set of the restraining members 11, and then matched as follows Figure 6 The annular fastener 4 shown in the figure is sleeved outside the two sets of restraints 11, so that the four sets of restraints 11 can be firmly fixed together. Figure 7 The limiting groove 18 is shown.

[0069] like Figure 7 and Figure 8 As shown, a groove 113 is provided on the edge where the end raised section 12b and the middle raised section 12a meet, and a connecting piece 114 is provided in the groove 113; the positioning rod 14 on the binding member 11 spliced ​​with the binding member 11 where the groove 113 is located passes through the connecting piece 114 and is inserted into the positioning hole 15 in the groove 113; the positioning rod 14 passing through the connecting piece 114 includes the positioning rod 14 on the middle binding section 111 and the positioning rod 14 on the end binding section 112. The middle binding section 111 and the end binding section 112 are connected together through the connecting piece 114. Figure 6 As shown, an annular shock-absorbing pad 19 is filled between the butted end surfaces of the middle restraining section 111 and the end restraining section 112 .

[0070] like Figure 8As shown, the middle constraint section 111 and the end constraint section 112 are both provided with cavities 13 for pouring concrete; the cavities 13 inside the middle constraint section 111 are arranged at intervals, and the cavities 13 inside the end constraint section 112 are located on both sides of the limiting groove 112a.

[0071] like Fig. 9 As shown, the energy absorbing core material 2 includes an energy absorbing section located in the middle and connecting sections 23 located at both ends of the energy absorbing section. The cross section of the energy absorbing section is a straight line. The straight line energy absorbing section includes a plate-shaped energy absorbing section 21 and a hole-shaped energy absorbing section 22 arranged alternately. Energy absorbing holes are arranged side by side on the plate surface of the hole-shaped energy absorbing section 22. The connecting section 23 is connected to the plate-shaped energy absorbing section 21. The connecting section 23 is an outer connecting section 23 and an inner connecting section 23 from one end away from the plate-shaped energy absorbing section 21 to the end close to the plate-shaped energy absorbing section 21. Stiffening plates 24 are vertically fixed on both plate surfaces of the outer connecting section 23, as shown in FIG. Fig.11 As shown, the cross section formed by the external connecting section 23 and the stiffening plate 24 is cross-shaped, and the stiffening plate 24 extends from the inside of the external restraint assembly 1 composed of two groups of restraint members 11 to the outside of the external restraint assembly 1 .

[0072] During assembly, two sets of external constraint components 1 are placed on both sides of the energy dissipation core material 2, the connecting section 23 extends from the end constraint section 112 to the middle constraint section 111, and the stiffening plate 24 on the connecting section 23 is placed in the limit groove 112a of the end constraint section 112, as shown in FIG. Fig.10 As shown, the I-shaped energy-absorbing section of the energy-absorbing core material 2 is placed in the cavity formed by the two middle restraining sections 111, and the gap between the cavity and the entire energy-absorbing core material 2 is filled with non-adhesive materials such as soft glass, thereby completing the operation of fixing the energy-absorbing core material 2 inside the two sets of external restraining components 1.

Claims

1. An energy dissipation buckling restraint brace device, comprising an external restraint component (1) and an energy dissipation core material (2) located inside the external restraint component (1), wherein the energy dissipation core material (2) is used to connect to a building component, and is characterized in that: The external restraining assembly (1) comprises restraining members (11) spliced ​​in sequence, and adjacent restraining members (11) are spliced ​​and fixed by positioning members, and the positioning members are used to fix the positions of the restraining members (11) relative to each other to limit the size of the area enclosed by the restraining members (11); The energy dissipation core material (2) is located within the area enclosed by each restraining member (11); The end surfaces of the restraining members (11) are each provided with a raised butt joint edge (12) along the length direction; The positioning member comprises a positioning hole (15) arranged on the edge of the raised butt joint edge (12), and a positioning rod (14) arranged on the corresponding end surface of the restraining member (11) adjacent to the restraining member (11) where the positioning hole (15) is located, wherein the positioning rod (14) is adapted to the positioning hole (15); Each of the raised butt joint edges (12) cooperates with each of the restraining members (11) to form a cavity, and the energy dissipation core material (2) is located in the cavity; The restraining member (11) is provided with a cavity (13) for pouring concrete inside, and a grouting hole (16) and a through hole (17) both of which are connected to the cavity (13) are provided on the side surface of the restraining member (11), and the height of the grouting hole (16) is lower than the height of the through hole (17); A limiting groove (18) is provided in an annular manner along the outer wall of an external constraint component (1) formed by splicing a constraint component (11) and a raised butt edge (12), and the positioning component further comprises a fastener (4) which is sleeved on the outer wall of the external constraint component (1) and located inside the limiting groove (18).

2. The energy dissipation buckling restrained brace device according to claim 1, characterized in that: The energy-absorbing core material (2) comprises an energy-absorbing section, wherein the energy-absorbing section comprises a plate-shaped energy-absorbing section (21) and a hole-shaped energy-absorbing section (22) which are alternately arranged along the length direction, wherein the plate-shaped energy-absorbing section (21) is a solid energy-absorbing plate material, and the hole-shaped energy-absorbing section (22) is provided with energy-absorbing holes spaced apart from each other in parallel.

3. The energy dissipating buckling restrained brace device according to claim 2, characterized in that: The energy-absorbing core material (2) further comprises a connecting section (23) located at the end of the energy-absorbing section, wherein the connecting section (23) is connected to the plate-shaped energy-absorbing section (21); The yield point of the energy absorbing section formed by the plate-shaped energy absorbing section (21) and the hole-shaped energy absorbing section (22) is lower than the yield point of the connecting section (23); The connecting section (23) is used to connect with the building components located on both sides of the energy-consuming core material (2).

4. The energy dissipating buckling restrained brace device according to claim 1, characterized in that: The energy absorbing core material (2) comprises an energy absorbing section, and the cross section of the energy absorbing section is in a straight line shape; the energy absorbing section comprises alternately arranged plate-shaped energy absorbing sections (21) and hole-shaped energy absorbing sections (22), and the plate surface of the hole-shaped energy absorbing section (22) is provided with energy absorbing holes spaced side by side.

5. The energy dissipating buckling restrained brace device according to claim 4, characterized in that: The restraining members (11) are located on both sides of the energy dissipation core material (2); The restraining member (11) is of segmented type, and the segmented restraining member (11) comprises a middle restraining section (111) and end restraining sections (112) located at both ends of the middle restraining section (111); a limiting groove (112a) is provided on the inner side surface of the end restraining section (112); The energy dissipation core material (2) comprises connecting sections (23) located at both ends of the energy dissipation section, and the yield point of the energy dissipation section is lower than the yield point of the connecting section (23); Stiffening plates (24) are connected to the two side plate surfaces of the connecting section (23), and the stiffening plates (24) are located in the limiting grooves (112a).

6. The energy dissipating buckling restrained brace device according to claim 5, characterized in that: The cross section formed by the end of the connecting section (23) used for connecting to the building component and the stiffening plate (24) is cross-shaped, and the cross section of the end of the connecting section (23) connected to the energy dissipation section is straight-shaped, and the straight-shaped end of the connecting section (23) extends into the interior of the middle restraining section (111).

7. The energy dissipating buckling restrained brace device according to claim 6, characterized in that: An end raised section (12b) is provided on the end surface of the end restraining section (112) along the length direction, and a middle raised section (12a) is provided on the end surface of the middle restraining section (111) along the length direction, and the end raised section (12b) and the middle raised section (12a) are connected to each other; Positioning holes (15) are provided on the edges of the end raised section (12b) and the middle raised section (12a), and a positioning rod (14) is provided on the end surface of the restraining member (11) spliced ​​with the restraining member (11) where the positioning hole (15) is located; the positioning rod (14) is located inside the positioning hole (15), and the positioning hole (15) and the positioning rod (14) constitute a positioning member.

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