A buckling-restrained dampening energy dissipation device

Abstract

The application discloses a kind of buckling-restrained dampening energy dissipation devices, it includes: first steel diagonal brace and second steel diagonal brace are fixedly connected by steel diagonal brace connecting structure between;Low yield point steel is arranged between first steel diagonal brace and second steel diagonal brace;Upper flange connecting cover plate is arranged in the upper end surface of first steel diagonal brace, low yield point steel and second steel diagonal brace, and upper flange connecting cover plate is fixedly connected with first steel diagonal brace, second steel diagonal brace by upper connecting component;Lower flange connecting cover plate is arranged in the lower end surface of first steel diagonal brace, low yield point steel and second steel diagonal brace, and lower flange connecting cover plate is fixedly connected with first steel diagonal brace, second steel diagonal brace by lower connecting component;First connecting component and second connecting component are respectively arranged in the opposite two sides of combined component;Combined component is formed by first steel diagonal brace, low yield point steel and second steel diagonal brace combination.This application can improve the applicability and anti-seismic performance of dampening energy dissipation device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of anti-seismic components, and particularly relates to a buckling-restrained damping energy dissipation device. BACKGROUND

[0002] A traditional method for building structure seismic resistance is to dissipate seismic energy through elastic-plastic deformation of the structure itself, and the essence is to take the structure itself and components as energy dissipation elements, so that the structure will be damaged to different degrees or even seriously damaged and collapsed under the action of a large earthquake. At present, some important and special building structures are designed and constructed with seismic mitigation, and the seismic response of the structure is reduced by setting a damping device on the structure, so as to improve the seismic performance of the building.

[0003] At present, the main damping methods and measures include buckling-restrained bracing, dampers (including viscous, metal and friction types), buckling-restrained steel plate walls and viscous damping walls. These damping measures are mainly applied to important and special buildings, and are expensive. Due to the particularity of residential buildings and the strictness of cost control requirements, the use of the above damping measures is limited, and it is very troublesome to replace the damaged parts after an earthquake. At present, the above damping measures are difficult to be applied to steel structure residences, which indirectly affects the promotion of steel structure residences.

[0004] Therefore, the existing damping devices have the problems of high cost and poor applicability. SUMMARY

[0005] The present application relates to the technical field of anti-seismic components, and particularly relates to a buckling-restrained damping energy dissipation device.

[0006] In order to achieve the above object, the technical scheme adopted by the present application is as follows: a buckling-restrained damping energy dissipation device is provided, which comprises a first steel diagonal brace, a steel diagonal brace connecting structure and a second steel diagonal brace; the first steel diagonal brace and the second steel diagonal brace are fixedly connected through the steel diagonal brace connecting structure; the steel diagonal brace connecting structure comprises low yield point steel, an upper flange connecting cover plate, a lower flange connecting cover plate, a first connecting assembly and a second connecting assembly; the low yield point steel is arranged between the first steel diagonal brace and the second steel diagonal brace; the upper flange connecting cover plate is arranged on the upper end surface of the first steel diagonal brace, the low yield point steel and the second steel diagonal brace, and the upper flange connecting cover plate is fixedly connected with the first steel diagonal brace and the second steel diagonal brace through the upper connecting assembly; the lower flange connecting cover plate is arranged on the lower end surface of the first steel diagonal brace, the low yield point steel and the second steel diagonal brace, and the lower flange connecting cover plate is fixedly connected with the first steel diagonal brace and the second steel diagonal brace through the lower connecting assembly; the first connecting assembly and the second connecting assembly are respectively arranged on the opposite two side surfaces of the combined assembly; the combined assembly is formed by combining the first steel diagonal brace, the low yield point steel and the second steel diagonal brace.

[0007] Further, the first steel diagonal brace and the second steel diagonal brace are both H-shaped structures; the first steel diagonal brace and the second steel diagonal brace both comprise an upper flange plate, a web plate and a lower flange plate; the web plate is arranged between the upper flange plate and the lower flange plate.

[0008] Further, the first connecting assembly comprises a first web plate connecting cover plate and a first damping member, and the second connecting assembly comprises a second web plate connecting cover plate and a second damping member; the first damping member is arranged between the first web plate connecting cover plate and the web plate, and the second damping member is arranged between the second web plate connecting cover plate and the web plate.

[0009] Further, the upper end of the low yield point steel is provided with a first arc-shaped bending part, and the lower end of the low yield point steel is provided with a second arc-shaped bending part; the upper flange connecting cover plate is provided with a first arc-shaped protrusion matched with the first arc-shaped bending part, and the outer end surface of the first arc-shaped bending part abuts against the inner concave surface of the first arc-shaped protrusion; the lower flange connecting cover plate is provided with a second arc-shaped protrusion matched with the second arc-shaped bending part; and the outer end surface of the second arc-shaped bending part abuts against the inner concave surface of the second arc-shaped protrusion.

[0010] Further, the thickness of the low yield point steel is the same as the thickness of the web plate.

[0011] Further, the upper flange connecting cover plate is provided with a plurality of first screw holes, and the upper flange plate is provided with a plurality of second screw holes matched with the first screw holes; the lower flange connecting cover plate is provided with a plurality of third screw holes, and the lower flange plate is provided with a plurality of fourth screw holes matched with the third screw holes.

[0012] Further, the low yield point steel is provided with a plurality of fifth screw holes, and the first connecting assembly and the second connecting assembly are each provided with a plurality of sixth screw holes matched with the fifth screw holes.

[0013] Further, the web of the first steel diagonal brace and the web of the second steel diagonal brace are each provided with a plurality of groups of first long circular holes, and the first connecting assembly and the second connecting assembly are each provided with a plurality of groups of second long circular holes matched with the first long circular holes.

[0014] Further, the damping energy dissipation device further comprises an upper connecting plate assembly and a lower connecting plate assembly; the upper connecting plate assembly is arranged on the lower end surface of the upper flange plate in the steel diagonal brace assembly, and the lower connecting plate assembly is arranged on the upper end surface of the lower flange plate in the steel diagonal brace assembly; the steel diagonal brace assembly is formed by the first steel diagonal brace and the second steel diagonal brace; the upper connecting plate assembly and the lower connecting plate assembly each comprise a first connecting plate and a second connecting plate, and the end of the low yield point steel is arranged at the gap between the first connecting plate and the second connecting plate.

[0015] Further, the damping energy dissipation device further comprises a steel column and a steel composite beam; the long axis direction of the steel column is perpendicular to the long axis direction of the steel composite beam; one end of the first steel diagonal brace not connected with the second steel diagonal brace is provided with an arc-shaped connecting section, and the arc-shaped connecting section is arranged between the steel column and the steel composite beam; the first height of the low yield point steel, the second height of the first steel diagonal brace, and the third height of the second steel diagonal brace are all equal; the first height is the distance between the upper end point and the lower end point of the low yield point steel in the vertical section; the vertical section is the part of the low yield point steel other than the first arc-shaped bending part and the second arc-shaped bending part; the second height is the distance between the outer side end surface of the upper flange plate and the outer side end surface of the lower flange plate in the main body section of the first steel diagonal brace; the main body section is the part of the first steel diagonal brace other than the arc-shaped connecting section; and the third height is the distance between the outer side end surface of the upper flange plate of the second steel diagonal brace and the outer side end surface of the lower flange plate of the second steel diagonal brace.

[0016] Further, the first long circular hole and the second long circular hole are fixedly connected through a bolt assembly.

[0017] The application discloses a buckling-restrained damping energy dissipation device, which comprises a first steel diagonal brace, a steel diagonal brace connecting structure and a second steel diagonal brace. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0019] Figure 1 The structural schematic diagram of the damping energy dissipation device provided by the embodiment of the present application is shown in the figure.

[0020] Figure 2 The partial exploded view of the damping energy dissipation device provided by the embodiment of the present application is shown in the figure.

[0021] Figure 3 The first part schematic diagram of the damping energy dissipation device provided by the embodiment of the present application is shown in the figure.

[0022] Figure 4 The second part schematic diagram of the damping energy dissipation device provided by the embodiment of the present application is shown in the figure.

[0023] Figure 5 The schematic diagram of the first steel diagonal brace in the damping energy dissipation device provided by the embodiment of the present application is shown in the figure.

[0024] Figure 6The third part of the damping energy dissipation device is shown in the figure;

[0025] Figure 7 The fourth part of the damping energy dissipation device is shown in the figure;

[0026] In the figure, the reference signs are as follows:

[0027] 10, damping energy dissipation device; 100, first steel diagonal brace; 200, second steel diagonal brace; 300, steel diagonal brace connecting structure; 310, low yield point steel; 320, upper flange connecting cover plate; 321, upper connecting plate assembly; 330, lower flange connecting cover plate; 331, lower connecting plate assembly; 340, first connecting assembly; 350, second connecting assembly; 360, upper connecting assembly; 370, lower connecting assembly; 110, upper flange plate; 120, web plate; 130, lower flange plate; 341, first web plate connecting cover plate; 342, first damping member; 351, second web plate connecting cover plate; 352, second damping member; 140, first long circular hole; 380, second long circular hole; 400, steel column; 500, steel composite beam. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0029] It should be understood that when used in the specification and the appended claims, the terms "comprise" and "include" indicate the presence of described features, integers, steps, operations, elements, and / or components, but do not exclude one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0030] It should also be understood that the terms used in the present application specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the present application specification and the appended claims, unless otherwise clearly indicated by the context, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0031] It should be further understood that the term "and / or" used in the present application specification and the appended claims means one or more of the associated listed items and all possible combinations thereof, and includes these combinations.

[0032] Please refer to Figure 1 , Figure 2 ,Figure 3 and Figure 4 , Figure 1 The structural schematic diagram of the damping energy dissipation device provided by the embodiment of the application is shown in the figure. Figure 2 The partial exploded view of the damping energy dissipation device provided by the embodiment of the application is shown in the figure. Figure 3 The first partial schematic diagram of the damping energy dissipation device provided by the embodiment of the application is shown in the figure. Figure 4 The second partial schematic diagram of the damping energy dissipation device provided by the embodiment of the application is shown in the figure. Figure 1 , Figure 2 , Figure 3 and Figure 4 The application provides a buckling-restrained damping energy dissipation device 10, which comprises a first steel diagonal brace 100, a steel diagonal brace connecting structure 300 and a second steel diagonal brace 200. The first steel diagonal brace 100 and the second steel diagonal brace 200 are fixedly connected through the steel diagonal brace connecting structure 300. The steel diagonal brace connecting structure 300 comprises low-yield-point steel 310, an upper flange connecting cover plate 320, a lower flange connecting cover plate 330, a first connecting assembly 340 and a second connecting assembly 350. The low-yield-point steel 310 is arranged between the first steel diagonal brace 100 and the second steel diagonal brace 200. The upper flange connecting cover plate 320 is arranged on the upper end surface of the first steel diagonal brace 100, the low-yield-point steel 310 and the second steel diagonal brace 200. The upper flange connecting cover plate 320 is fixedly connected with the first steel diagonal brace 100 and the second steel diagonal brace 200 through an upper connecting assembly 360, and the upper connecting assembly 360 is composed of a plurality of groups of high-strength bolts. The lower flange connecting cover plate 330 is arranged on the lower end surface of the first steel diagonal brace 100, the low-yield-point steel 310 and the second steel diagonal brace 200. The lower flange connecting cover plate 330 is fixedly connected with the first steel diagonal brace 100 and the second steel diagonal brace 200 through a lower connecting assembly 370, and the lower connecting assembly 370 is composed of a plurality of groups of high-strength bolts. The first connecting assembly 340 and the second connecting assembly 350 are arranged on the opposite two side surfaces of the combined assembly respectively. The combined assembly is formed by the first steel diagonal brace 100, the low-yield-point steel 310 and the second steel diagonal brace 200.

[0033] The damping energy dissipation device 10 is suitable for a prefabricated steel structure residential building, and has strong applicability. The damping energy dissipation device 10 comprises a first steel diagonal brace 100, a steel diagonal brace connecting structure 300 and a second steel diagonal brace 200. The first steel diagonal brace 100 and the second steel diagonal brace 200 are fixedly connected through the steel diagonal brace connecting structure 300. By arranging the steel diagonal brace connecting structure 300, the difficulty of replacing the damping energy dissipation device 10 can be effectively reduced. When replacement is needed after a major earthquake, only the damaged node area needs to be replaced, and the whole steel body does not need to be replaced. The steel diagonal brace connecting structure 300 comprises low-yield-point steel 310, an upper flange connecting cover plate 320, a lower flange connecting cover plate 330, a first connecting assembly 340 and a second connecting assembly 350. The low-yield-point steel 310 is arranged between the first steel diagonal brace 100 and the second steel diagonal brace 200. By arranging the low-yield-point steel 310, buckling restraint can be achieved, and the seismic performance of the damping energy dissipation device 10 can be improved. The upper flange connecting cover plate 320 is fixedly connected with the first steel diagonal brace 100 and the second steel diagonal brace 200 through an upper connecting assembly 360. The lower flange connecting cover plate 330 is fixedly connected with the first steel diagonal brace 100 and the second steel diagonal brace 200 through a lower connecting assembly 370. The upper connecting assembly 360 and the lower connecting assembly 370 are high-strength bolts, which can effectively improve the working reliability of the damping energy dissipation device 10.

[0034] In an embodiment, as shown in Figure 1 、 Figure 2 and Figure 5 , the first steel diagonal brace 100 and the second steel diagonal brace 200 are both H-shaped structures. The first steel diagonal brace 100 and the second steel diagonal brace 200 both comprise an upper flange plate 110, a web plate 120 and a lower flange plate 130. The web plate 120 is arranged between the upper flange plate 110 and the lower flange plate 130.

[0035] In the embodiment, the first steel diagonal brace 100 and the second steel diagonal brace 200 are both H-shaped structures. The low-yield-point steel 310 is arranged between the first steel diagonal brace 100 and the second steel diagonal brace 200. The thickness of the low-yield-point steel 310 is the same as the thickness of the web plate 120. The width of the low-yield-point steel 310 is 50-60 mm.

[0036] In an embodiment, as shown in Figure 2 and Figure 4As shown, the first connecting assembly 340 comprises a first web connecting cover plate 341 and a first damping member 342, and the second connecting assembly 350 comprises a second web connecting cover plate 351 and a second damping member 352; the first damping member 342 is arranged between the first web connecting cover plate 341 and the web 120, and the second damping member 352 is arranged between the second web connecting cover plate 351 and the web 120.

[0037] In the embodiment, the first damping member 342 and the second damping member 352 are both viscoelastic wide-temperature-range damping resins, and the thickness of the first damping member 342 and the second damping member 352 is 1.2-2 mm. The first damping member 342 is arranged between the first web connecting cover plate 341 and the web 120, and the second damping member 352 is arranged between the second web connecting cover plate 351 and the web 120, so that hysteresis energy dissipation can be generated when relative displacement occurs in a medium or large earthquake, and energy dissipation and shock absorption are realized.

[0038] In an embodiment, as shown in Figure 2 , Figure 3 and Figure 6 As shown, the upper end of the low-yield-point steel 310 is provided with a first arc-shaped bending part, and the lower end of the low-yield-point steel 310 is provided with a second arc-shaped bending part; the upper flange connecting cover plate 320 is provided with a first arc-shaped protrusion matched with the first arc-shaped bending part, and the outer end surface of the first arc-shaped bending part abuts against the inner concave surface of the first arc-shaped protrusion; the lower flange connecting cover plate 330 is provided with a second arc-shaped protrusion matched with the second arc-shaped bending part; and the outer end surface of the second arc-shaped bending part abuts against the inner concave surface of the second arc-shaped protrusion.

[0039] In the embodiment, the highest point of the first arc-shaped bending part exceeds the upper flange plate 110 by 5 mm, and the highest point of the second arc-shaped bending part exceeds the lower flange plate 130 by 5 mm. The upper flange connecting cover plate 320 is provided with a first arc-shaped protrusion matched with the first arc-shaped bending part, and the outer end surface of the first arc-shaped bending part abuts against the inner concave surface of the first arc-shaped protrusion; the lower flange connecting cover plate 330 is provided with a second arc-shaped protrusion matched with the second arc-shaped bending part; and the outer end surface of the second arc-shaped bending part abuts against the inner concave surface of the second arc-shaped protrusion. When relative displacement occurs in a medium or large earthquake, the low-yield-point steel 310 can realize buckling-restrained. When the generated relative displacement is pulling apart, the upper flange connecting cover plate 320 and the lower flange connecting cover plate 330 are restrained by the low-yield-point steel 310. When the generated relative displacement is compression, the low-yield-point steel 310 is clamped and restrained by the first connecting assembly 340 and the second connecting assembly 350, the low-yield-point steel 310 generates plastic yield, and buckling-restrained is realized.

[0040] In an embodiment, as shown in Figure 2 and Figure 5 The low yield point steel 310 has the same thickness as the web 120.

[0041] In this embodiment, the low yield point steel 310 has the same thickness as the web 120. The width of the low yield point steel 310 is 50-60 mm.

[0042] In an embodiment, as shown in Figure 2 The upper flange connecting cover plate 320 is provided with a plurality of first screw holes, and the upper flange plate 110 is provided with a plurality of second screw holes matched with the first screw holes. The lower flange connecting cover plate 330 is provided with a plurality of third screw holes, and the lower flange plate 130 is provided with a plurality of fourth screw holes matched with the third screw holes.

[0043] In this embodiment, the first screw holes and the second screw holes are fixedly connected through the upper connecting assembly 360, and the third screw holes and the fourth screw holes are fixedly connected through the lower connecting assembly 370. The pre-pressing clamping of the upper connecting assembly 360 and the lower connecting assembly 370 can effectively improve the resistance to deformation of the damping energy dissipation device 10.

[0044] In an embodiment, as shown in Figure 2 The low yield point steel 310 is provided with a plurality of fifth screw holes, and the first connecting assembly 340 and the second connecting assembly 350 are each provided with a plurality of sixth screw holes matched with the fifth screw holes.

[0045] In this embodiment, the fifth screw holes and the sixth screw holes are clamped through high-strength bolts.

[0046] In an embodiment, as shown in Figure 2 and Figure 3 The webs 120 of the first steel diagonal brace 100 and the second steel diagonal brace 200 are each provided with a plurality of groups of first long circular holes 140, and the first connecting assembly 340 and the second connecting assembly 350 are each provided with a plurality of groups of second long circular holes 380 matched with the first long circular holes 140.

[0047] In this embodiment, the first long circular holes 140 and the second long circular holes 380 are fixedly connected through a bolt assembly composed of a plurality of groups of high-strength bolts. The bolts can slide in the first long circular holes 140 and the second long circular holes 380 to increase the deformation resistance of the damping energy dissipation device 10.

[0048] In an embodiment, as shown in Figure 2 , Figure 3 and Figure 7 , the damping energy dissipation device 10 further comprises an upper connecting plate assembly 321 and a lower connecting plate assembly 331; the upper connecting plate assembly 321 is arranged on the lower end surface of the upper flange plate 110 in the steel diagonal bracing assembly, and the lower connecting plate assembly 331 is arranged on the upper end surface of the lower flange plate 130 in the steel diagonal bracing assembly; the steel diagonal bracing assembly is formed by the first steel diagonal brace 100 and the second steel diagonal brace 200; the upper connecting plate assembly 321 and the lower connecting plate assembly 331 each comprise a first connecting plate and a second connecting plate, and the end of the low yield point steel 310 is arranged at the gap between the first connecting plate and the second connecting plate.

[0049] In the embodiment, the damping energy dissipation device 10 further comprises an upper connecting plate assembly 321 and a lower connecting plate assembly 331; the upper connecting plate assembly 321 is arranged on the lower end surface of the upper flange plate 110 in the steel diagonal bracing assembly, and the lower connecting plate assembly 331 is arranged on the upper end surface of the lower flange plate 130 in the steel diagonal bracing assembly; the steel diagonal bracing assembly is formed by the first steel diagonal brace 100 and the second steel diagonal brace 200; the upper connecting plate assembly 321 and the lower connecting plate assembly 331 each comprise a first connecting plate and a second connecting plate, and the end of the low yield point steel 310 is arranged at the gap between the first connecting plate and the second connecting plate, which can effectively improve the anti-seismic ability and anti-deformation ability of the damping energy dissipation device 10.

[0050] In an embodiment, as shown in Figure 1 , Figure 3 and Figure 5 , the damping energy dissipation device 10 further comprises a steel column 400 and a steel composite beam 500; the long axis direction of the steel column 400 is perpendicular to the long axis direction of the steel composite beam 500; one end of the first steel diagonal brace 100 not connected with the second steel diagonal brace 200 is provided with an arc-shaped connecting section, and the arc-shaped connecting section is arranged between the steel column 400 and the steel composite beam 500; the first height of the low yield point steel 310, the second height of the first steel diagonal brace 100, and the third height of the second steel diagonal brace 200 are equal; the first height is the distance between the upper end point and the lower end point of the low yield point steel 310 in the vertical section; the vertical section is the part of the low yield point steel 310 other than the first arc-shaped bending part and the second arc-shaped bending part; the second height is the distance between the outer side end surface of the upper flange plate 110 and the outer side end surface of the lower flange plate 130 in the main body section of the first steel diagonal brace 100; the main body section is the part of the first steel diagonal brace 100 other than the arc-shaped connecting section; and the third height is the distance between the outer side end surface of the upper flange plate 110 of the second steel diagonal brace 200 and the outer side end surface of the lower flange plate 130 of the second steel diagonal brace 200.

[0051] In the embodiment, the damping energy dissipation device 10 further comprises a steel column 400 and a steel composite beam 500; the structure of the steel column 400 is not limited, and the steel column 400 can be a cuboid structure or a square structure or an H-shaped structure; the steel composite beam 500 comprises a first steel beam and a second steel beam, and both the first steel beam and the second steel beam are H-shaped structures. The long axis direction of the steel column 400 is perpendicular to the long axis direction of the steel composite beam 500; one end of the first steel diagonal brace 100, which is not connected with the second steel diagonal brace 200, is provided with an arc-shaped connecting section, and the arc-shaped connecting section is arranged between the steel column 400 and the steel composite beam 500. The damping energy dissipation device 10 can be applied to a fabricated steel structure residential building, and has strong applicability. The thickness of the low yield point steel 310 is the same as the thickness of the web plate 120, the first height of the low yield point steel 310, the second height of the first steel diagonal brace 100 and the third height of the second steel diagonal brace 200 are all equal, which can effectively improve the anti-seismic capacity and the anti-deformation capacity of the damping energy dissipation device 10. The first height is the distance between the upper end point and the lower end point of the low yield point steel 310 in the vertical section; the vertical section is the part of the low yield point steel 310, which is not the first arc-shaped bending part and the second arc-shaped bending part; the second height is the distance between the outer side end surface of the upper flange plate 110 and the outer side end surface of the lower flange plate 130 of the first steel diagonal brace 100 in the main body section; the main body section is the part of the first steel diagonal brace 100, which is not the arc-shaped connecting section; and the third height is the distance between the outer side end surface of the upper flange plate 110 of the second steel diagonal brace 200 and the outer side end surface of the lower flange plate 130 of the second steel diagonal brace 200.

[0052] The application discloses a kind of buckling-restrained dampening energy dissipation devices, the dampening energy dissipation device includes: first steel diagonal brace, steel diagonal brace connecting structure and second steel diagonal brace;The first steel diagonal brace is fixedly connected with the second steel diagonal brace by the steel diagonal brace connecting structure;The steel diagonal brace connecting structure includes low yield point steel, upper flange connecting cover plate, lower flange connecting cover plate, first connecting component and second connecting component;The low yield point steel is arranged between the first steel diagonal brace and the second steel diagonal brace;The upper flange connecting cover plate is arranged in the upper end surface of the first steel diagonal brace, the low yield point steel and the second steel diagonal brace, and the upper flange connecting cover plate is fixedly connected with the first steel diagonal brace, the second steel diagonal brace by upper connecting component;The lower flange connecting cover plate is arranged in the lower end surface of the first steel diagonal brace, the low yield point steel and the second steel diagonal brace, and the lower flange connecting cover plate is fixedly connected with the first steel diagonal brace, the second steel diagonal brace by lower connecting component;The first connecting component and the second connecting component are respectively arranged in the opposite two sides of combined component;The combined component is formed by the first steel diagonal brace, the low yield point steel and the second steel diagonal brace.

[0053] The above is merely a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements shall be encompassed within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A buckling-restrained damping energy dissipation device, characterized by, The damping energy dissipation device comprises a first steel diagonal brace, a steel diagonal brace connecting structure and a second steel diagonal brace; the first steel diagonal brace and the second steel diagonal brace are fixedly connected through the steel diagonal brace connecting structure; The steel diagonal brace connecting structure comprises low yield point steel, upper flange connecting cover plates, lower flange connecting cover plates, a first connecting assembly and a second connecting assembly; the low yield point steel is arranged between the first steel diagonal brace and the second steel diagonal brace; The upper flange connecting cover plates are arranged on the upper end faces of the first steel diagonal brace, the low yield point steel and the second steel diagonal brace, and the upper flange connecting cover plates and the first steel diagonal brace and the second steel diagonal brace are fixedly connected through upper connecting assemblies; the lower flange connecting cover plates are arranged on the lower end faces of the first steel diagonal brace, the low yield point steel and the second steel diagonal brace, and the lower flange connecting cover plates and the first steel diagonal brace and the second steel diagonal brace are fixedly connected through lower connecting assemblies; The first connecting assembly and the second connecting assembly are respectively arranged on opposite two side faces of a combined assembly; the combined assembly is formed by combination of the first steel diagonal brace, the low yield point steel and the second steel diagonal brace; The first steel diagonal brace and the second steel diagonal brace are both H-shaped structures; The first steel diagonal brace and the second steel diagonal brace both comprise upper flange plates, webs and lower flange plates; the webs are arranged between the upper flange plates and the lower flange plates; The upper end of the low yield point steel is provided with a first arc-shaped bending part, and the lower end of the low yield point steel is provided with a second arc-shaped bending part; The upper flange connecting cover plates are provided with first arc-shaped protrusions matched with the first arc-shaped bending parts, and the outer end faces of the first arc-shaped bending parts abut against the inner concave faces of the first arc-shaped protrusions; the lower flange connecting cover plates are provided with second arc-shaped protrusions matched with the second arc-shaped bending parts; and the outer end faces of the second arc-shaped bending parts abut against the inner concave faces of the second arc-shaped protrusions; The damping energy dissipation device further comprises a steel column and a steel composite beam; The long axis direction of the steel column is perpendicular to the long axis direction of the steel composite beam; one end of the first steel diagonal brace not connected with the second steel diagonal brace is provided with an arc-shaped connecting section, and the arc-shaped connecting section is arranged between the steel column and the steel composite beam; The first height of the low yield point steel, the second height of the first steel diagonal brace and the third height of the second steel diagonal brace are all equal; The first height is the spacing between the upper end point and the lower end point of the low yield point steel in a vertical section; the vertical section is the part of the low yield point steel other than the first arc-shaped bending part and the second arc-shaped bending part; the second height is the spacing between the outer side end face of the upper flange plate and the outer side end face of the lower flange plate of the first steel diagonal brace in a main body section; the main body section is the part of the first steel diagonal brace other than the arc-shaped connecting section; and the third height is the spacing between the outer side end face of the upper flange plate of the second steel diagonal brace and the outer side end face of the lower flange plate of the second steel diagonal brace.

2. The buckling-restrained damping energy dissipation device according to claim 1, wherein The first connecting assembly comprises first web connecting cover plates and first damping members, and the second connecting assembly comprises second web connecting cover plates and second damping members; The first damping member is arranged between the first web connecting cover plate and the web, and the second damping member is arranged between the second web connecting cover plate and the web.

3. The buckling-restrained damping energy dissipation device according to claim 1, wherein The low yield point steel has the same thickness as the web.

4. The buckling-restrained damping energy dissipation device according to claim 1, wherein The upper flange connecting cover plate is provided with a plurality of first screw holes, and the upper flange plate is provided with a plurality of second screw holes matched with the first screw holes. The lower flange connecting cover plate is provided with a plurality of third screw holes, and the lower flange plate is provided with a plurality of fourth screw holes matched with the third screw holes.

5. The buckling-restrained damping energy dissipation device according to claim 1, wherein The low yield point steel is provided with a plurality of fifth screw holes, and the first connecting assembly and the second connecting assembly are each provided with a plurality of sixth screw holes matched with the fifth screw holes.

6. The buckling-restrained damping energy dissipation device according to claim 1, wherein The webs of the first steel diagonal brace and the second steel diagonal brace are each provided with a plurality of groups of first long circular holes, and the first connecting assembly and the second connecting assembly are each provided with a plurality of groups of second long circular holes matched with the first long circular holes.

7. The buckling-restrained damping energy dissipation device according to claim 1, wherein Further comprising an upper connecting plate assembly and a lower connecting plate assembly; the upper connecting plate assembly is arranged at the lower end surface of the upper flange plate in the steel diagonal brace assembly, and the lower connecting plate assembly is arranged at the upper end surface of the lower flange plate in the steel diagonal brace assembly; the steel diagonal brace assembly is formed by the first steel diagonal brace and the second steel diagonal brace in combination; The upper connecting plate assembly and the lower connecting plate assembly each comprise a first connecting plate and a second connecting plate, and the end of the low yield point steel is arranged at the gap between the first connecting plate and the second connecting plate.

8. The buckling-restrained damping energy dissipation device according to claim 6, wherein The first long circular hole and the second long circular hole are fixedly connected through a bolt assembly.

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