Assembly type self-resetting friction energy consumption angle brace provided with disc spring

Abstract

The invention relates to the technical field of earthquake resistance of building structures, in particular to an assembly type self-resetting friction energy dissipation angle brace provided with a disc spring, which comprises a first connecting component, an elastic sliding component and a second connecting component which are sequentially and slidably connected along the same axis, and the elastic sliding component can be stretched or compressed along the axis direction. A first friction plate is arranged between the first connecting component and the elastic sliding assembly, and the first friction plate is used for providing damping during axial relative movement between the elastic sliding assembly and the first connecting component. According to the embodiment of the invention, when the first connecting component and the second connecting component generate relative axial displacement, the elastic sliding assembly slides and elastically deforms under the action of the limiting piece, part of earthquake energy is stored, meanwhile, part of earthquake energy is dissipated through the first friction plate, and when the elastic sliding assembly resets and releases the stored elastic potential energy, the earthquake energy is stored. The energy stored by the first friction plate is dissipated, so that the vibration of the building is dissipated in the friction of the first friction plate.

Description

Technical Field

[0001] The invention relates to the technical field of earthquake resistance of building structures, and in particular to an assembled self-resetting friction energy-absorbing corner brace equipped with a disc spring. Background Art

[0002] With the development of social economy and the acceleration of urbanization, the height and scale of buildings are increasing, which puts higher requirements on their seismic performance. The traditional seismic design method is mainly to resist earthquake effects by improving structural stiffness and strength, but this often leads to heavy structures and high costs, and may produce large residual deformations after strong earthquakes, making repairs difficult and causing huge economic losses. To this end, in recent years, researchers have developed various energy-absorbing and self-resetting devices, such as using prestressed steel bars, shape memory alloys, disc springs, etc. as self-resetting components, and using friction dampers as energy-absorbing components. However, these devices have problems such as complex structure, high cost, and difficult assembly, which limit their application in engineering. Therefore, there is an urgent need for a self-resetting energy-absorbing device with simple structure, convenient assembly, and reliable performance to meet the seismic requirements of modern buildings. Summary of the invention

[0003] The object of the present invention is to provide an assembled self-resetting friction energy dissipation corner brace equipped with disc springs to solve the earthquake resistance problem at the nodes of a building.

[0004] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0005] An assembled self-resetting friction energy-absorbing corner brace equipped with a disc spring comprises a first connecting member, an elastic sliding assembly and a second connecting member which are sequentially slidably connected along the same axis; the first connecting member and the second connecting member are respectively used to connect different parts of the main structure of a building, the elastic sliding assembly can be stretched or compressed along the axial direction, and limit members are provided in the first connecting member and the second connecting member, and the limit members are used to limit the sliding stroke of the elastic sliding assembly relative to the first connecting member and the second connecting member; a first friction plate is provided between the first connecting member and the elastic sliding assembly, and the first friction plate is used to provide damping during the axial relative movement between the elastic sliding assembly and the first connecting member.

[0006] Furthermore, the first connecting member includes a sleeve portion and a first limiting member, the interior of the sleeve portion is provided with a slide groove for accommodating the elastic sliding assembly, the first limiting member is fixedly connected to both ends of the slide groove, and the length of the slide groove is not greater than the length of the elastic sliding assembly when no external force is applied.

[0007] Further, the sleeve portion includes a first vertical plate perpendicular to its own axis and at least two first horizontal plates parallel to its own axis, two opposite sides of the first vertical plate are fixedly connected to the same side of the two first horizontal plates, the sliding groove is formed on the opposite surfaces of the two first horizontal plates, and the two first horizontal plates are fixedly installed with first bolts that vertically penetrate the first horizontal plates, and the first bolts are used to slidably connect the elastic sliding assembly to guide the movement direction of the elastic sliding assembly.

[0008] Furthermore, the elastic sliding assembly includes an elastic part and two first sliding parts, the two first sliding parts are respectively installed at both ends of the elastic part, the friction assembly is installed between the first sliding part and the first connecting member, and the elastic part includes a plurality of axially connected disc springs.

[0009] Furthermore, each of the first sliding parts includes a second vertical plate perpendicular to its own axis and at least two second cross plates parallel to its own axis, two opposite edges of the second vertical plate are fixedly connected to the same side of the two second cross plates, the second cross plate is parallel to the first cross plate, and the second vertical plates of the two first sliding parts respectively abut against the outer sides of the disc springs at both ends of the elastic part; the second cross plate is slidably connected to the slide groove, and the second cross plate is provided with an elongated hole that cooperates with the first bolt, the first bolt passes through the elongated hole to connect the second cross plate, the length direction of the elongated hole is parallel to the length direction of the slide groove, and the sliding stroke of the first bolt inside the elongated hole is greater than the sliding stroke of the elastic sliding component inside the slide groove; the first bolt passes through the first friction plate, and the contact force between the first friction plate and the first cross plate and the second cross plate can be adjusted by tightening or loosening the first bolt, thereby adjusting the sliding friction force between the first connecting member and the elastic sliding component.

[0010] Furthermore, the second connecting member includes a pull rod passing through the elastic sliding assembly, two second limit members are respectively provided at both ends of the pull rod, and the second vertical plates of the two first sliding parts are each provided with a through hole for the pull rod to pass through, and the two second limit members respectively abut against the outer sides of the second vertical plates of the two first sliding parts.

[0011] Furthermore, one of the second limit members is a limit block welded to the pull rod, and the other second limit member is a nut threadedly connected to the pull rod, so that the distance between the two second limit members can be adjusted, thereby changing the prestress applied to the disc spring by the second connecting member.

[0012] Furthermore, a second friction plate is arranged between the second connecting member and the elastic sliding assembly. During the resetting process of the pull rod, the second friction plate is used to provide damping for the axial movement between the elastic sliding assembly and the second connecting member, so that the resetting speed of the pull rod is not greater than the resetting speed of the first sliding part.

[0013] Furthermore, the second connecting member also includes two second sliding parts, the two second sliding parts are respectively fixedly connected to the two second limiting members, each second sliding part includes a third vertical plate perpendicular to its own axis and at least two third cross plates parallel to its own axis, and two opposite sides of the third vertical plate are fixedly connected to the same side of the two third cross plates; the second vertical plates of the two first sliding parts respectively abut against the outer sides of the third vertical plates of the two second sliding parts, and the two second cross plates of the first sliding parts are connected by a reinforcing plate perpendicularly connected to the second vertical plate and the second cross plate, and the reinforcing plate is parallel to the third cross plate; the second friction plate is installed between the third cross plate and the reinforcing plate, and the second friction plate provides damping for the relative movement of the third cross plate and the reinforcing plate, thereby hindering the relative movement of the second connecting member and the elastic sliding assembly.

[0014] Furthermore, the two reinforcing plates are fixedly installed with a second bolt vertically connecting the reinforcing plates, the third cross plate is provided with a long strip hole matching the second bolt, the second bolt passes through the long strip hole to connect the third cross plate, the length direction of the long strip hole is parallel to the length direction of the slide groove, the sliding stroke of the second bolt inside the long strip hole is greater than the sliding stroke of the elastic sliding component inside the slide groove, and the contact force between the second friction plate and the reinforcing plate and the third cross plate can be adjusted by tightening or loosening the second bolt, thereby adjusting the sliding friction between the second connecting component and the elastic sliding component.

[0015] Compared with the prior art, this application has the following beneficial effects:

[0016] Provided is an assembled self-resetting friction energy-absorbing corner brace installed with a disc spring. When a first connecting member and a second connecting member undergo relative axial displacement, an elastic sliding component slides and undergoes elastic deformation under the action of a limit member, thereby storing part of the seismic energy and dissipating part of the seismic energy through a first friction plate. After the earthquake, the elastic sliding component releases the stored elastic potential energy and dissipates its own stored energy through the first friction, thereby dissipating the vibration of the building in the friction of the first friction plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] Figure 1 is a perspective view of a first embodiment of the present invention;

[0019] Figure 2 Schematic diagram of the internal structure of the first embodiment of the present invention in different stress states;

[0020] Figure 3 is an assembly diagram of a first embodiment of the present invention;

[0021] Figure 4 A perspective view of a partial structure of a first connecting member according to a first embodiment of the present invention;

[0022] Figure 5 A three-dimensional diagram of another part of the first connecting member of the first embodiment of the present invention;

[0023] Figure 6 is a three-dimensional diagram of the elastic portion of the first embodiment of the present invention;

[0024] Figure 7 A three-dimensional diagram of a first sliding portion according to a first embodiment of the present invention;

[0025] Figure 8 is a perspective view of a second connecting member according to a first embodiment of the present invention;

[0026] Fig. 9 A three-dimensional diagram of an elastic sliding assembly and a second connecting member according to a second embodiment of the present invention;

[0027] Fig.10 is a side view of the elastic sliding assembly and the second connecting member according to the second embodiment of the present invention;

[0028] Fig.11 for Fig.10 Cross-sectional view in the AA direction;

[0029] The numbers in the figure represent the following:

[0030] 11-sleeve portion; 111-first vertical plate; 112-first horizontal plate; 113-first bolt; 12-slide groove; 13-first limit member; 14-first ear plate; 141-first pin hole; 21-elastic portion; 211-disc spring; 22-first sliding portion; 221-second vertical plate; 222-second horizontal plate; 223-reinforcement plate; 31-pull rod; 32-second limit member; 33-second ear plate; 331-second pin hole; 34-second sliding portion; 341-third vertical plate; 342-third horizontal plate; 343-second bolt; 41-first friction plate; 42-second friction plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0032] (First embodiment)

[0033] Figure 1 A three-dimensional diagram of the assembled self-resetting friction energy-absorbing corner brace is presented.

[0034] Combination Figure 1 The assembled self-resetting friction energy-absorbing corner brace includes a first connecting member, an elastic sliding component and a second connecting member which are slidably connected in sequence along the same axis. The first connecting member and the second connecting member are respectively used to connect the columns and beams of the main structure of the building. The elastic sliding component can be stretched or compressed along the axial direction.

[0035] The first connecting member and the second connecting member are both provided with limit members, and the limit members are used to limit the sliding stroke of the elastic sliding assembly.

[0036] A friction component is provided between the first connecting member and the elastic sliding component. The friction component is used to provide damping for the axial movement between the elastic sliding component and the first connecting member. During an earthquake, the first connecting member and the second connecting member undergo relative axial displacement, and the elastic sliding component is forced to slide and undergo elastic deformation under the action of the limiter, storing part of the earthquake energy. At the same time, the friction component dissipates part of the earthquake energy through friction. After the earthquake, the elastic sliding component releases the stored elastic potential energy, and continues to dissipate energy through the friction component, realizing the self-reset function of the device.

[0037] Figure 2 The working process diagram of the assembled self-resetting friction energy dissipation corner brace is presented, combined with Figure 2The specific working process is as follows (taking the first connecting member moving, the second connecting member stationary, and the friction component being arranged between the second connecting member and the elastic sliding component as an example):

[0038] Compression stage: When the main structure of the building shakes in one direction, the first connecting member moves toward the second connecting member, and the elastic sliding component is squeezed by the limiters of the first connecting member and the second connecting member, slides along the axial direction and is compressed. During this process, the elastic sliding component slides relative to the second connecting member through the friction component, and the friction component dissipates part of the seismic energy. At the same time, the elastic sliding component stores another part of the seismic energy to form a restoring force.

[0039] Reset phase: When the main structure of the building shakes in the opposite direction, the first connecting member begins to move away from the second connecting member, and the elastic sliding component begins to rebound under the action of its own elastic restoring force. During this process, the elastic sliding component releases the stored elastic potential energy and continues to dissipate energy through the friction component during the rebound process to prevent impact caused by too fast reset.

[0040] Through the above process, the assembled self-resetting friction energy-absorbing corner brace realizes the absorption, storage, dissipation and self-resetting functions of seismic energy, reduces the seismic response of the main structure of the building, and enhances the seismic resistance.

[0041] Figure 3 The assembly drawing of the assembled self-resetting friction energy-absorbing corner brace is presented.

[0042] Combination Figure 3 The first connecting member includes a sleeve portion 11 and a first limiter 13. A slide groove 12 for accommodating an elastic sliding component is arranged inside the sleeve portion 11. The first limiter 13 is fixedly connected to both ends of the slide groove 12 by welding, bolt connection or other means. The length of the slide groove 12 is not greater than the length of the elastic sliding component when there is no external force.

[0043] The sleeve portion 11 is usually a steel plate or a steel section, and has sufficient strength and rigidity to withstand the axial force from the elastic sliding assembly.

[0044] One end of the sleeve portion 11 away from the second connecting member is fixedly connected to the building column by bolts, welding or other connecting methods, or one end of the sleeve portion 11 away from the second connecting member is fixedly connected to a first ear plate 14, and a first pin hole 141 is opened on the first ear plate 14. The first ear plate 14 is used in conjunction with a connecting support installed on the column of the main structure of the building through a pin shaft.

[0045] In this embodiment, the sleeve portion 11 includes a first vertical plate 111 perpendicular to its own axis and at least two first horizontal plates 112 parallel to its own axis. Figure 4 and Figure 5The first transverse plate 112 and the first vertical plate 111 are shown respectively, and the two opposite sides of the first vertical plate 111 are fixedly connected to the same side of the two first transverse plates 112 by welding, bolt connection or other connection methods. The slide groove 12 is formed on the opposite surfaces of the two first transverse plates 112, and the two first transverse plates 112 are fixedly installed with first bolts 113 that vertically penetrate the first transverse plates 112. The first bolts 113 are used for slidingly connecting the elastic sliding component to guide the movement direction of the elastic sliding component.

[0046] The first limiting member 13 may be a stopper, a limiting plate or a protrusion fixed on the first main body portion, and is used to stop the elastic sliding assembly from continuing to move when the elastic sliding assembly slides to both ends of the slide groove 12 to prevent excessive displacement.

[0047] Combination Figure 3 The elastic sliding component includes an elastic portion 21 and two first sliding portions 22 . The two first sliding portions 22 are respectively installed at two ends of the elastic portion 21 . The friction component is installed between the first sliding portion 22 and the first connecting member.

[0048] Figure 6 The elastic part 21 is shown, and the elastic part 21 includes a plurality of axially connected disc springs 211.

[0049] Figure 7 The first sliding part 22 is shown, and each first sliding part 22 includes a second vertical plate 221 perpendicular to its own axis and at least two second horizontal plates 222 parallel to its own axis. The two opposite sides of the second vertical plate 221 are fixedly connected to the same side of the two second horizontal plates 222 by welding, bolting or other connection methods. The second horizontal plate 222 is parallel to the first horizontal plate 112, and the second vertical plates 221 of the two first sliding parts 22 are respectively in contact with the outer sides of the disc springs 211 at both ends of the elastic part 21.

[0050] The second transverse plate 222 is slidably connected to the slide groove 12. The second transverse plate 222 is provided with an elongated hole that cooperates with the first bolt 113. The first bolt 113 passes through the elongated hole to connect the second transverse plate 222. The length direction of the elongated hole is parallel to the length direction of the slide groove 12. The sliding stroke of the first bolt 113 inside the elongated hole is greater than the sliding stroke of the elastic sliding component inside the slide groove 12.

[0051] The friction assembly includes a first friction plate 41 installed between the second transverse plate 222 and the slide groove 12, and the first bolt 113 passes through the first friction plate 41. By tightening or loosening the first bolt 113, the contact force between the first friction plate 41 and the first transverse plate 112 and the second transverse plate 222 can be adjusted, thereby adjusting the sliding friction force between the first connecting member and the elastic sliding assembly.

[0052] Figure 8A second connecting member is shown, combined with Figure 3 , Figure 7 and Figure 8 .

[0053] The second connecting member includes a pull rod 31 that passes through the elastic sliding component, and two second limit members 32 are respectively provided at both ends of the pull rod 31. The second vertical plates 221 of the two first sliding parts 22 are each provided with a through hole for the pull rod 31 to pass through, and the two second limit members 32 respectively abut against the outer sides of the second vertical plates 221 of the two first sliding parts 22.

[0054] One of the second limit members 32 is a limit block and is welded to the pull rod 31, and the other second limit member 32 is a nut and is threadedly connected to the pull rod 31, so that the distance between the two second limit members 32 can be adjusted, thereby changing the prestress applied to the disc spring 211 by the second connecting member.

[0055] One end of the pull rod 31 away from the first connecting member is fixedly connected to the building beam by bolts, welding or other connecting methods, or one end of the pull rod 31 away from the first connecting member is fixedly connected to a second ear plate 33, and a second pin hole 331 is opened on the second ear plate 33. The second pin hole 331 is used in conjunction with a connecting support installed on the beam of the main structure of the building through a pin shaft.

[0056] (Second embodiment)

[0057] During the reset stage of the first embodiment, since the pull rod 31 and the first sliding part 22 are connected with low friction, the pull rod 31 can be quickly reset to the initial position. However, the first sliding part 22 and the sleeve part 11 are connected with high friction, which causes the first friction plate 41 to reset slowly. The final result is that the pull rod 31 has been reset, but the first sliding part 22 has not been completely reset. At this time, the pull rod 31 pushes the other first sliding part 22 to move toward the first sliding part 22 that has not been reset, resulting in the disc spring 211 between the two first sliding parts 22. Energy cannot be released in time, and the continued energy of the disc spring 211 cannot be dissipated through the first friction plate 41 in time, affecting the function of the disc spring 211 to accumulate energy in the subsequent earthquake resistance process, which causes the first embodiment to be unable to effectively cope with earthquake loads.

[0058] Combination Fig. 9 , Fig.10 and Fig.11 , the second embodiment provides a solution.

[0059] A friction assembly is provided between the second connecting member and the elastic sliding assembly. During the resetting process of the pull rod 31, the friction assembly is used to provide damping for the axial movement between the elastic sliding assembly and the second connecting member, so that the resetting speed of the pull rod 31 is not greater than the resetting speed of the first sliding part 22.

[0060] The second connecting member also includes two second sliding parts 34, which are respectively fixedly connected to the two second limit members 32, and each second sliding part 34 includes a third vertical plate 341 perpendicular to its own axis and at least two third horizontal plates 342 parallel to its own axis, and the two opposite sides of the third vertical plate 341 are fixedly connected to the same side of the two third horizontal plates 342 by welding, bolt connection or other connection methods.

[0061] The second vertical plates 221 of the two first sliding parts 22 respectively abut against the outer sides of the second vertical plates 221 of the two first sliding parts 22. The two second horizontal plates 222 of the first sliding parts 22 are connected by a reinforcing plate 223. The reinforcing plate 223 is perpendicular to the second vertical plates 221 and the second horizontal plates 222. The third horizontal plate 342 is parallel to the reinforcing plate 223.

[0062] The friction assembly includes a second friction plate 42 installed between the third transverse plate 342 and the reinforcing plate 223 . The second friction plate 42 provides damping for the relative movement between the third transverse plate 342 and the reinforcing plate 223 , thereby hindering the relative movement between the second connecting member and the elastic sliding portion.

[0063] In addition, in order to adjust the sliding friction force between the second connecting member and the elastic sliding part, the two reinforcing plates 223 are fixedly installed with second bolts 343 that vertically connect the reinforcing plates 223, and the third cross plate 342 is provided with a long strip hole that cooperates with the second bolt 343. The second bolt 343 passes through the long strip hole to connect the third cross plate 342. The length direction of the long strip hole is parallel to the length direction of the slide groove 12, and the sliding stroke of the third bolt inside the long strip hole is greater than the sliding stroke of the elastic sliding component inside the slide groove 12.

[0064] The contact force between the second friction plate 42 and the reinforcing plate 223 and the third transverse plate 342 can be adjusted by tightening or loosening the second bolt 343 , thereby adjusting the sliding friction force between the second connecting member and the elastic sliding assembly.

[0065] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. An assembled self-resetting friction energy dissipation corner brace equipped with a disc spring, characterized in that: It comprises a first connecting member, an elastic sliding assembly and a second connecting member which are sequentially slidably connected along the same axis; The first connecting member and the second connecting member are respectively used to connect different parts of the main structure of the building, the elastic sliding component can be stretched or compressed along the axial direction, and the first connecting member and the second connecting member are both provided with limit members, which are used to limit the sliding stroke of the elastic sliding component relative to the first connecting member and the second connecting member; A first friction plate (41) is arranged between the first connecting member and the elastic sliding component, and the first friction plate (41) is used to provide damping when the elastic sliding component and the first connecting member move relative to each other in the axial direction.

2. The assembled self-resetting friction energy dissipation corner brace equipped with a disc spring according to claim 1, characterized in that: The first connecting member comprises a sleeve portion (11) and a first limiting member (13); a slide groove (12) for accommodating the elastic sliding component is arranged inside the sleeve portion (11); the first limiting member (13) is fixedly connected to both ends of the slide groove (12); and the length of the slide groove (12) is not greater than the length of the elastic sliding component when no external force is applied.

3. The assembled self-resetting friction energy dissipation corner brace equipped with a disc spring according to claim 2, characterized in that: The sleeve portion (11) includes a first vertical plate (111) perpendicular to its own axis and at least two first horizontal plates (112) parallel to its own axis. Two opposite sides of the first vertical plate (111) are fixedly connected to the same side of the two first horizontal plates (112). The sliding groove (12) is formed on the opposite surfaces of the two first horizontal plates (112). The two first horizontal plates (112) are fixedly mounted with a first bolt (113) vertically penetrating the first horizontal plate (112). The first bolt (113) is used for slidingly connecting the elastic sliding component to guide the movement direction of the elastic sliding component.

4. The assembled self-resetting friction energy dissipation corner brace equipped with a disc spring according to claim 3, characterized in that: The elastic sliding component comprises an elastic part (21) and two first sliding parts (22), the two first sliding parts (22) are respectively installed at two ends of the elastic part (21), the friction component is installed between the first sliding part (22) and the first connecting member, and the elastic part (21) comprises a plurality of axially connected disc springs (211).

5. The assembled self-resetting friction energy dissipation corner brace equipped with a disc spring according to claim 4, characterized in that: Each of the first sliding parts (22) comprises a second vertical plate (221) perpendicular to its own axis and at least two second horizontal plates (222) parallel to its own axis, two opposite sides of the second vertical plate (221) are fixedly connected to the same side of two second horizontal plates (222), the second horizontal plates (222) are parallel to the first horizontal plate (112), and the second vertical plates (221) of the two first sliding parts (22) respectively abut against the outer sides of the disc springs (211) at both ends of the elastic part (21); The second transverse plate (222) is slidably connected to the slide groove (12); the second transverse plate (222) is provided with an elongated hole matched with the first bolt (113); the first bolt (113) passes through the elongated hole to connect the second transverse plate (222); the length direction of the elongated hole is parallel to the length direction of the slide groove (12); the sliding stroke of the first bolt (113) inside the elongated hole is greater than the sliding stroke of the elastic sliding component inside the slide groove (12); The first bolt (113) passes through the first friction plate (41). By tightening or loosening the first bolt (113), the contact force between the first friction plate (41) and the first transverse plate (112) and the second transverse plate (222) can be adjusted, thereby adjusting the sliding friction force between the first connecting member and the elastic sliding component.

6. The assembled self-resetting friction energy dissipation corner brace equipped with a disc spring according to claim 5, characterized in that: The second connecting member comprises a pull rod (31) passing through the elastic sliding assembly, two second limiting members (32) are respectively provided at both ends of the pull rod (31), and the second vertical plates (221) of the two first sliding parts (22) are each provided with a through hole for the pull rod (31) to pass through, and the two second limiting members (32) respectively abut against the outer sides of the second vertical plates (221) of the two first sliding parts (22).

7. The assembled self-resetting friction energy dissipation corner brace equipped with a disc spring according to claim 6, characterized in that: One of the second limit members (32) is a limit block welded to the pull rod (31), and the other second limit member (32) is a nut threadedly connected to the pull rod (31), so that the distance between the two second limit members (32) can be adjusted, thereby changing the prestress applied by the second connecting member to the disc spring (211).

8. The assembled self-resetting friction energy dissipation corner brace equipped with a disc spring according to claim 7, characterized in that: A second friction plate (42) is provided between the second connecting member and the elastic sliding component. During the resetting process of the pull rod (31), the second friction plate (42) is used to provide damping for the axial movement between the elastic sliding component and the second connecting member, so that the resetting speed of the pull rod (31) is not greater than the resetting speed of the first sliding part (22).

9. The assembled self-resetting friction energy dissipation corner brace equipped with a disc spring according to claim 8, characterized in that: The second connecting member further comprises two second sliding parts (34), the two second sliding parts (34) are respectively fixedly connected to the two second stoppers (32), each second sliding part (34) comprises a third vertical plate (341) perpendicular to its own axis and at least two third horizontal plates (342) parallel to its own axis, and two opposite sides of the third vertical plate (341) are fixedly connected to the same side of the two third horizontal plates (342); The second vertical plates (221) of the two first sliding parts (22) respectively abut against the outer sides of the third vertical plates (341) of the two second sliding parts (34), and the two second horizontal plates (222) of the first sliding parts (22) are connected via a reinforcing plate (223) vertically connected to the second vertical plates (221) and the second horizontal plates (222), and the reinforcing plate (223) is parallel to the third horizontal plate (342); The second friction plate (42) is installed between the third transverse plate (342) and the reinforcing plate (223), and the second friction plate (42) provides damping for the relative movement between the third transverse plate (342) and the reinforcing plate (223), thereby hindering the relative movement between the second connecting member and the elastic sliding assembly.

10. The assembled self-resetting friction energy dissipation corner brace equipped with a disc spring according to claim 9, characterized in that: The two reinforcing plates (223) are both fixedly mounted with a second bolt (343) vertically connecting the reinforcing plates (223); the third transverse plate (342) is provided with an elongated hole matched with the second bolt (343); the second bolt (343) passes through the elongated hole to connect the third transverse plate (342); the length direction of the elongated hole is parallel to the length direction of the slide groove (12); the sliding stroke of the second bolt (343) inside the elongated hole is greater than the sliding stroke of the elastic sliding component inside the slide groove (12); by tightening or loosening the second bolt (343), the contact force between the second friction plate (42) and the reinforcing plate (223) and the third transverse plate (342) can be adjusted, thereby adjusting the sliding friction between the second connecting member and the elastic sliding component.

Images