Self-resetting energy dissipator and installation method

Abstract

The present invention discloses a self-resetting energy dissipator, comprising: an upper box-type steel plate component, an intermediate box-type steel plate component, a lower box-type steel plate component, an end box-type steel plate component, a disc spring elastic reset assembly, a pull rod, and a steel plate energy dissipator component; the end box-type steel plate components are respectively arranged at the two ends above the lower box-type steel plate component, the top of the end box-type steel plate component is open, and a plurality of partitions are arranged on its inner wall, and a groove penetrating the partition is provided in the middle of the partition; the steel plate energy dissipator component is located between the intermediate box-type steel plate component and the end box-type steel plate component; the disc spring elastic reset assembly comprises: a disc spring, a rigid pad and a nut; the rigid pad is placed at the two ends of the disc spring, and the outer side of the rigid pad is fastened by a nut; the rigid pads at the two ends of the disc spring abut between two adjacent partitions. The energy dissipator of the present invention is convenient to construct, simple in structure, strong in stability, and has the functions of energy consumption and self-reset.

Description

Technical Field

[0001] The invention relates to the technical field of energy damping, and more particularly to a self-resetting energy dissipator and an installation method thereof. Background Art

[0002] Energy dissipation and shock absorption technology refers to setting up energy dissipation devices at designated locations of structures, and using the energy dissipation devices to generate elastic-plastic hysteresis deformations such as friction, bending, and shearing to dissipate energy or absorb the energy input from earthquakes or other vibrations into the structure, thereby reducing the vibration response of the main structure, avoiding damage to the structure itself, and protecting the safety of the structure itself. Traditional energy dissipation and shock absorption technology is to set up energy dissipators in the structure to dissipate energy, but the residual deformation of the structure after the earthquake is too large and it often cannot be restored to its original position. Existing self-resetting devices generally use prestressed reinforcements, memory alloys and other materials to provide restoring force, but they have the disadvantages of difficult construction, large prestress loss, and high cost.

[0003] Therefore, it is an urgent problem for technical personnel in this field to invent a self-resetting energy dissipator and an installation method which is convenient to construct, simple in structure, strong in stability and has energy dissipation capacity. Summary of the invention

[0004] In view of this, the present invention provides a self-resetting energy dissipator and an installation method which are convenient to construct, simple in structure, strong in stability and have energy dissipation capacity.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A self-resetting energy dissipator, comprising: an upper box-type steel plate component, a middle box-type steel plate component, a lower box-type steel plate component, an end box-type steel plate component, a disc spring elastic reset component, a pull rod, and a steel plate energy dissipation component;

[0007] The middle box-type steel plate member is vertically arranged below the middle of the upper box-type steel plate member;

[0008] The lower box-type steel plate component is located below the middle box-type steel plate component;

[0009] The end box-type steel plate components are provided with two, which are respectively provided at the two ends above the lower box-type steel plate component. The top of the end box-type steel plate component is open, and a plurality of partitions are provided on the inner wall thereof. A groove penetrating the partition is provided in the middle of the partition;

[0010] The steel plate energy dissipation component is located between the middle box-type steel plate component and the end box-type steel plate component;

[0011] One end of the pull rod passes through the upper box-type steel plate component and is connected to the upper box-type steel plate component, and the other end passes through the groove and is placed inside the end box-type steel plate component and is connected to the disc spring elastic reset assembly;

[0012] The disc spring elastic reset assembly includes: a disc spring, a rigid pad and a nut; the disc spring, the rigid pad and the nut are all sleeved on the pull rod, the rigid pad is placed at both ends of the disc spring, and the outer side of the rigid pad is fastened by the nut; the rigid pads at both ends of the disc spring abut between two adjacent partitions.

[0013] The beneficial effect of adopting the above technical solution is that when the energy dissipator is subjected to force as a whole, the upper box-type steel plate component and the pull rod move in the same direction, the disc spring is compressed, and at the same time, the steel plate energy dissipation component undergoes out-of-plane bending plastic deformation to consume the energy of the earthquake input structure, and the energy dissipator plays a self-resetting and energy-consuming role. In addition, the energy dissipator of the present invention has a simple structure and strong stability.

[0014] Preferably, the upper box-type steel plate component comprises: two parallel first flange plates and a first stiffening rib disposed between the two first flange plates, wherein a plurality of first stiffening ribs are provided. The provision of the first stiffening ribs can enhance the stability of the upper box-type steel plate component.

[0015] Preferably, the middle box-type steel plate component comprises: two parallel second flange plates and a second stiffening rib disposed between the two second flange plates, wherein a plurality of second stiffening ribs are provided. The provision of the second stiffening ribs can enhance the stability of the middle box-type steel plate component.

[0016] Preferably, the connection between the second flange plate and the first flange plate below the upper box-type steel plate component is supported and fixed by a first triangular plate, so that the connection between the upper box-type steel plate component and the middle box-type steel plate component is more stable, preventing the middle box-type steel plate component from shaking, and enhancing the structural stability of the energy dissipator.

[0017] Preferably, the top of the pull rod passes through and is placed on the top of the upper box-type steel plate member, and the outer surface of the pull rod and the first flange plate on the top of the upper box-type steel plate member are supported and fixed by a second triangular plate, so that the pull rod and the upper box-type steel plate member are firmly fixed, ensuring that the upper box-type steel plate member and the pull rod move in the same direction during an earthquake, thereby achieving the function of dissipating seismic energy and self-resetting.

[0018] Preferably, one or more steel plate energy dissipation components are provided between the end box-type steel plate components and the middle box-type steel plate components, and the steel plate energy dissipation components include: two parallel connecting plates and energy-absorbing steel plates, and the energy-absorbing steel plates are provided with a plurality of evenly disposed between the two connecting plates. When an earthquake occurs, the steel plate energy dissipation components will undergo out-of-plane bending plastic deformation to consume the energy input into the structure by the earthquake.

[0019] Preferably, the lower box-type steel plate component comprises: two parallel third flange plates and third stiffening ribs, wherein a plurality of third stiffening ribs are provided and disposed between the two third flange plates. The provision of the third stiffening ribs can enhance the stability of the lower box-type steel plate component.

[0020] Preferably, the end box-type steel plate member is composed of two vertically parallel steel plates, the partition is placed between the two steel plates, and the steel plate close to the steel plate energy dissipation member and the third flange plate at the top of the lower box-type steel plate member are supported and fixed by the first triangular plate, so that the connection between the lower box-type steel plate member and the end box-type steel plate member is more stable.

[0021] Preferably, the nut and the rigid pad apply a certain preload force to the disc spring, the distance between two adjacent partitions is the same as the distance between the two rigid pads after the disc spring is preloaded, and the circumscribed circle diameter of the nut surface is smaller than the groove diameter, so that when the pull rod moves during an earthquake, the nut can move in the inner circle of the partition, and the disc spring preload should be greater than the residual internal force when the energy dissipator is reversely loaded to zero, so that the component can return to its original position and reduce the residual displacement of the energy dissipator.

[0022] A method for installing a self-resetting energy dissipator, the installation steps are as follows:

[0023] S1, pre-install the upper box-type steel plate member, the middle box-type steel plate member, the lower box-type steel plate member, and the end box-type steel plate members, and install the middle box-type steel plate member under the upper box-type steel plate member and fix it with a first triangular plate, and install the two end box-type steel plate members at both ends of the lower box-type steel plate member and fix them with a first triangular plate;

[0024] S2, sleeve the disc spring, rigid pad and nut on the pull rod, place the rigid pad at both ends of the disc spring, and place the nut on the outside of the rigid pad, press the rigid pad to apply a certain pre-pressure to the disc spring, when the disc spring elastic reset assembly is provided with multiple groups, the multiple groups of the disc spring elastic reset assembly are arranged side by side along the axial direction of the pull rod;

[0025] S3, at least two partitions are arranged inside the end box-type steel plate member, the groove is opened in the middle of the partition, the rigid pads at both ends of the pre-tightened disc spring are placed between two adjacent partitions, and the distance between the two adjacent partitions is the same as the distance between the two rigid pads after the disc spring is pre-tightened;

[0026] S4, passing the top of the tie rod through the upper box-type steel plate member, the tie rod is a threaded rod, the thread of the part where the tie rod passes through the upper box-type steel plate member is ground flat, and a plurality of second triangular plates are provided on the side wall of the tie rod to be fixed to the upper box-type steel plate member;

[0027] S5. Place the steel plate energy dissipation component between the middle box-type steel plate component and the end box-type steel plate component, and connect it to the middle box-type steel plate component and the end box-type steel plate component by welding or high-strength bolts.

[0028] The beneficial effect of adopting the above technical solution is that the structure of the energy dissipator in the present invention is simple, and the energy dissipator can be easily installed and used according to the above steps, and has strong stability. It can greatly dissipate seismic energy in an earthquake and self-reset the structure after the earthquake, and can be widely used in the construction field.

[0029] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a self-resetting energy dissipator and an installation method, which have the following beneficial effects:

[0030] When the energy dissipator is subjected to force as a whole, the upper box-type steel plate component and the pull rod move in the same direction, the disc spring is compressed, and at the same time, the steel plate energy dissipator undergoes out-of-plane bending plastic deformation to consume the energy of the earthquake input structure, and the energy dissipator plays a role of self-reset and energy dissipation;

[0031] The present invention arranges the first stiffening rib, the second stiffening rib, the third stiffening rib, the first triangular plate, and the second triangular plate so that the structure between the upper box-type steel plate component, the lower box-type steel plate component, the middle box-type steel plate component, and the end box-type steel plate component has strong stability, and has a simple structure, is easy to install and operate, has strong stability, and can be widely used in the field of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0033] Figure 1The accompanying drawing is a cross-sectional view of the energy dissipator provided by the present invention;

[0034] Figure 2 The accompanying drawing is a schematic structural diagram of a steel plate energy dissipation component provided by the present invention;

[0035] Figure 3 The accompanying drawing is a schematic diagram of the structure of the energy dissipator partition provided by the present invention.

[0036] Among them, in the figure,

[0037] 1-Upper box-type steel plate component;

[0038] 101-first flange plate; 102-first stiffening rib;

[0039] 2-lower box type steel plate member;

[0040] 201-third flange plate; 202-third stiffening rib;

[0041] 3-Middle box-type steel plate member;

[0042] 301- second flange plate; 302- second stiffening rib;

[0043] 4- disc spring elastic return assembly;

[0044] 401-nut; 402-rigid pad; 403-disc spring;

[0045] 5-Tie rod;

[0046] 6-partition;

[0047] 601-groove;

[0048] 7-Steel plate energy dissipation component;

[0049] 701-connecting plate; 702-energy-absorbing steel plate;

[0050] 8-first triangle plate; 9-second triangle plate;

[0051] 10-End box-type steel plate member;

[0052] 1001-Steel plate. DETAILED DESCRIPTION

[0053] 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.

[0054] The embodiment of the present invention discloses a self-resetting energy dissipator, comprising: an upper box-type steel plate component 1, an intermediate box-type steel plate component 3, a lower box-type steel plate component 2, an end box-type steel plate component 10, a disc spring elastic reset assembly 4, a pull rod 5, and a steel plate energy dissipation component 7; the intermediate box-type steel plate component 3 is vertically arranged below the middle of the upper box-type steel plate component 1; the lower box-type steel plate component 2 is located below the intermediate box-type steel plate component 3; two end box-type steel plate components 10 are provided, which are respectively arranged at the two ends above the lower box-type steel plate component 2, the top of the end box-type steel plate component 10 is open, and a plurality of partitions 6 are provided on its inner wall, and a groove 601 penetrating the partition 6 is provided in the middle of the partition 6; the steel plate energy dissipation component 7 is located in the middle Between the box-type steel plate component 3 and the end box-type steel plate component 10; one end of the pull rod 5 passes through the upper box-type steel plate component 1 and is connected to the upper box-type steel plate component 1, and the other end passes through the groove 601 and is placed inside the end box-type steel plate component 10, and is connected to the disc spring elastic reset component 4; the disc spring elastic reset component 4 includes: a disc spring 403, a rigid pad 402 and a nut 401; the disc spring 403, the rigid pad 402 and the nut 401 are all sleeved on the pull rod 5, the rigid pad 402 is placed at both ends of the disc spring 401, and the outer side of the rigid pad 402 is fastened by the nut 401; the rigid pads 402 at both ends of the disc spring 403 abut between two adjacent partitions 6.

[0055] In order to further optimize the above technical scheme, a gap is left between the bottom of the upper box-type steel plate component 1 and the top of the end box-type steel plate component 10, and a gap is left between the middle box-type steel plate component 3 and the upper flange plate of the lower box-type steel plate component 2. The size of the gap should be larger than the pre-stressed design displacement of the disc spring and the design displacement of the steel plate energy dissipation component 7.

[0056] In order to further optimize the above technical solution, the upper box-type steel plate component 1 includes: two parallel first flange plates 101 and a first stiffening rib 102 disposed between the two first flange plates 101 , and a plurality of first stiffening ribs 102 are provided.

[0057] In order to further optimize the above technical solution, the middle box-type steel plate component 3 includes: two parallel second flange plates 301 and a second stiffening rib 302 disposed between the two second flange plates 301 , and a plurality of second stiffening ribs 302 are provided.

[0058] In order to further optimize the above technical solution, the connection between the second flange plate 301 and the first flange plate 101 below the upper box-type steel plate component 1 is supported and fixed by the first triangular plate 8. The first triangular plate 8 is welded and fixed to the second flange plate 301 and the upper box-type steel plate component 1.

[0059] In order to further optimize the above technical solution, the top of the tie rod 5 passes through and is placed on the top of the upper box-type steel plate member 1, and the outer surface of the tie rod 5 is supported and fixed to the first flange plate 101 on the top of the upper box-type steel plate member 1 by the second triangular plate 9. The tie rod 5 is a threaded rod, and the thread on the top of the tie rod 5 is ground flat, and the second triangular plate 9 is welded and fixed to the tie rod 5 and the top of the upper box-type steel plate member 1.

[0060] In order to further optimize the above technical solution, one or more steel plate energy dissipation components 7 are provided between the end box-type steel plate components 10 and the middle box-type steel plate components 3. The steel plate energy dissipation components 7 include: two parallel connecting plates 701 and energy-absorbing steel plates 702. The energy-absorbing steel plates 702 are provided with multiple evenly placed between the two connecting plates 701. The shape of the energy-absorbing steel plates 702 can be a triangle, an X shape, an open-hole diamond shape, and other forms.

[0061] In order to further optimize the above technical solution, the lower box-type steel plate component 2 includes: two parallel third flange plates 201 and third stiffening ribs 202 . There are multiple third stiffening ribs 202 , which are placed between the two third flange plates 201 .

[0062] In order to further optimize the above technical solution, the end box-type steel plate member 10 is composed of two vertically parallel steel plates 1001, the partition 6 is placed between the two steel plates 1001, and the steel plate 1001 close to the steel plate energy dissipation member 7 and the third flange plate 201 at the top of the lower box-type steel plate member 2 are supported and fixed by the first triangular plate 8. The first triangular plate 8 is welded and fixed between the steel plate energy dissipation member 7 and the lower box-type steel plate member 2.

[0063] In order to further optimize the above technical solution, the nut 401 and the rigid pad 402 apply a certain preload force to the disc spring 403, the distance between two adjacent partitions 6 is the same as the distance between the two rigid pads 402 after the disc spring 403 is preloaded, and the diameter of the circumscribed circle on the surface of the nut 402 is smaller than the diameter of the groove 601. The preload of the disc spring 403 should be greater than the residual internal force when the energy dissipator is reversely loaded to zero, so that the component can be restored to its original position and the residual displacement of the energy dissipator can be reduced. The nut 401 is a customized nut, the inner hole of which is circular, the inner diameter is slightly larger than the diameter of the pull rod 5, the outer circumference is polygonal, the outer diameter is smaller than the outer diameter of the rigid pad 402, and the outer diameter of the rigid pad 402 is larger than the diameter of the groove 601.

[0064] A method for installing a self-resetting energy dissipator, the installation steps are as follows:

[0065] S1, pre-install the upper box-type steel plate member 2, the middle box-type steel plate member 3, the lower box-type steel plate member 2, and the end box-type steel plate member 10, and install the middle box-type steel plate member 3 under the upper box-type steel plate member 1 and fix it with the first triangular plate 8, and install the two end box-type steel plate members 10 at both ends of the lower box-type steel plate member 2 and fix them with the first triangular plate 8;

[0066] S2. Sleeve the disc spring 403, the rigid pad 402 and the nut 401 on the pull rod 5, place the rigid pad 402 at both ends of the disc spring 403, and place the nut 401 on the outside of the rigid pad 402, press the rigid pad 402 to apply a certain pre-pressure to the disc spring 403, when there are multiple groups of disc spring elastic reset assemblies 4, the multiple groups of disc spring elastic reset assemblies 4 are arranged side by side along the axial direction of the pull rod 5;

[0067] S3. At least two partitions 6 are arranged inside the end box-type steel plate member 10. A groove 601 is provided in the middle of the partition 6. The rigid pads 402 at both ends of the pre-tightened disc spring 403 are placed between two adjacent partitions 6. The distance between the two adjacent partitions 6 is the same as the distance between the two rigid pads 402 after the disc spring 403 is pre-tightened.

[0068] S4, passing the top of the tie rod 5 through the upper box-type steel plate member 1, the tie rod 5 is a threaded rod, the thread of the part where the tie rod 5 passes through the upper box-type steel plate member 1 is ground flat, and a plurality of second triangular plates 9 are provided on the side wall of the tie rod 5 to be fixed to the upper box-type steel plate member 1;

[0069] S5. Place the steel plate energy dissipation member 7 between the middle box-type steel plate member 3 and the end box-type steel plate member 10, and connect them to the middle box-type steel plate member 3 and the end box-type steel plate member 10 by welding or high-strength bolts.

[0070] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0071] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-resetting energy dissipator, characterized in that: include: An upper box-type steel plate component (1), an intermediate box-type steel plate component (3), a lower box-type steel plate component (2), an end box-type steel plate component (10), a disc spring elastic reset assembly (4), a pull rod (5), and a steel plate energy dissipation component (7); The middle box-type steel plate component (3) is vertically arranged below the middle portion of the upper box-type steel plate component (1); The lower box-type steel plate component (2) is located below the middle box-type steel plate component (3); The end box-type steel plate components (10) are provided with two, which are respectively provided at the two ends above the lower box-type steel plate component (2); the top of the end box-type steel plate component (10) is open, and a plurality of partitions (6) are provided on the inner wall thereof; a groove (601) penetrating the partition (6) is provided in the middle of the partition (6); The steel plate energy dissipation component (7) is fixed between the middle box-type steel plate component (3) and the end box-type steel plate component (10); One end of the pull rod (5) passes through the upper box-type steel plate component (1) and is connected to the upper box-type steel plate component (1), and the other end passes through the groove (601) and is placed inside the end box-type steel plate component (10), and is connected to the disc spring elastic return assembly (4); The disc spring elastic reset assembly (4) comprises: a disc spring (403), a rigid pad (402) and a nut (401); the disc spring (403), the rigid pad (402) and the nut (401) are all sleeved on the pull rod (5), the rigid pad (402) is placed at both ends of the disc spring (403), and the outer side of the rigid pad (402) is fastened by the nut (401); the rigid pads (402) at both ends of the disc spring (403) are abutted between two adjacent partitions (6).

2. A self-resetting energy dissipator according to claim 1, characterized in that: The upper box-type steel plate component (1) comprises: two parallel first flange plates (101) and a first stiffening rib (102) disposed between the two first flange plates (101), wherein a plurality of the first stiffening ribs (102) are provided.

3. A self-resetting energy dissipator according to claim 2, characterized in that: The intermediate box-type steel plate component (3) comprises: two parallel second flange plates (301) and a second stiffening rib (302) disposed between the two second flange plates (301), wherein a plurality of the second stiffening ribs (302) are provided.

4. A self-resetting energy dissipator according to claim 3, characterized in that: The connection between the second flange plate (301) and the first flange plate (101) below the upper box-type steel plate component (1) is supported and fixed by a first triangular plate (8).

5. A self-resetting energy dissipator according to any one of claims 2 to 4, characterized in that: The top of the tie rod (5) passes through and is placed on the top of the upper box-type steel plate component (1), and the outer surface of the tie rod (5) and the first flange plate (101) at the top of the upper box-type steel plate component (1) are supported and fixed by a second triangular plate (9).

6. A self-resetting energy dissipator according to claim 5, characterized in that: One or more of the steel plate energy dissipation components (7) are provided between the end box-type steel plate components (10) and the middle box-type steel plate components (3), and the steel plate energy dissipation components (7) comprise: two parallel connecting plates (701) and an energy dissipation steel plate (702), wherein a plurality of the energy dissipation steel plates (702) are evenly arranged between the two connecting plates (701).

7. A self-resetting energy dissipator according to claim 4, characterized in that: The lower box-type steel plate component (2) comprises: two parallel third flange plates (201) and third stiffening ribs (202); a plurality of third stiffening ribs (202) are provided and are disposed between the two third flange plates (201).

8. A self-resetting energy dissipator according to claim 7, characterized in that: The end box-type steel plate component (10) is composed of two vertically parallel steel plates (1001), the partition plate (6) is placed between the two steel plates (1001), and the steel plate (1001) close to the steel plate energy dissipation component (7) and the third flange plate (201) at the top of the lower box-type steel plate component (2) are supported and fixed by the first triangular plate (8).

9. A self-resetting energy dissipator according to any one of claims 1-4, 6-8, characterized in that: The nut (401) and the rigid pad (402) apply a certain pre-tightening force to the disc spring (403); the distance between two adjacent partitions (6) is the same as the distance between two rigid pads (402) after the disc spring (403) is pre-tightened; and the diameter of the circumscribed circle on the surface of the nut (401) is smaller than the diameter of the groove (601).

10. A method for installing a self-resetting energy dissipator according to any one of claims 1 to 9, characterized in that: The installation steps are as follows: S1, pre-installing the upper box-type steel plate member (1), the middle box-type steel plate member (3), the lower box-type steel plate member (2), and the end box-type steel plate members (10), installing the middle box-type steel plate member (3) below the upper box-type steel plate member (1) and fixing it with a first triangular plate (8), installing the two end box-type steel plate members (10) at both ends of the lower box-type steel plate member (2), and fixing them with a first triangular plate (8); S2, sleeve the disc spring (403), the rigid pad (402), and the nut (401) on the pull rod (5), place the rigid pad (402) at both ends of the disc spring (403), and place the nut (401) on the outside of the rigid pad (402), press the rigid pad (402) to apply a certain pre-pressure to the disc spring (403), when the disc spring elastic reset assembly (4) is provided with multiple groups, the multiple groups of the disc spring elastic reset assembly (4) are arranged side by side along the axial direction of the pull rod (5); S3, at least two partitions (6) are arranged inside the end box-type steel plate member (10), the groove (601) is opened in the middle of the partition (6), the rigid pads (402) at both ends of the pre-tightened disc spring (403) are placed between two adjacent partitions (6), and the distance between the two adjacent partitions (6) is the same as the distance between the two rigid pads (402) after the disc spring (403) is pre-tightened; S4, passing the top of the tie rod (5) through the upper box-type steel plate component (1), wherein the tie rod (5) is a threaded rod, grinding the thread of the portion where the tie rod (5) passes through the upper box-type steel plate component (1), and providing a plurality of second triangular plates (9) on the side wall of the tie rod (5) to be fixed to the upper box-type steel plate component (1); S5. Placing the steel plate energy dissipation component (7) between the middle box-type steel plate component (3) and the end box-type steel plate component (10), and connecting the steel plate energy dissipation component (7) to the middle box-type steel plate component (3) and the end box-type steel plate component (10) by welding or high-strength bolt connection.

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