Self-resetting damper and installation method

Abstract

The present invention discloses a self-resetting damper, comprising: an upper box-type steel plate component, an intermediate box-type steel plate component, a lower box-type steel plate component, a disc spring elastic reset assembly, a pull rod, and a U-shaped steel energy dissipation assembly; a plurality of partitions are provided on the inner wall of the intermediate box-type steel plate component, and a groove penetrating the partition is provided in the middle of the partition; the U-shaped steel energy dissipation assembly comprises: an upper end plate, a lower end plate, and a U-shaped steel plate; 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 intermediate box-type steel plate component and is connected to the upper end plate; the disc spring elastic reset assembly comprises: a disc spring, a rigid pad, and a nut; the rigid pads at both ends of the disc spring abut between two adjacent partitions. The damper in the present invention can not only dissipate energy and reduce shock when an earthquake occurs, but also realize the self-resetting function of the structure after the earthquake.

Description

Technical Field

[0001] The present invention relates to the technical field of effective vibration reduction, and more particularly to a self-resetting damper and an installation method thereof. Background Art

[0002] Metal dampers can be divided into axial yield type, shear yield type, bending yield type and torsion yield type dampers according to the force form. Compared with other types of dampers such as viscoelastic type, friction type and viscous liquid type, metal dampers are easy to process, have stable hysteresis performance, are easy to replace, and have low cost and maintenance costs. They are widely used in the field of seismic reinforcement and repair of engineering structures. However, due to various technical reasons, most of the dampers currently used in building structures are unidirectional energy dissipation, which greatly limits their actual energy dissipation and shock absorption effect, or only play an energy dissipation and shock absorption role, and cannot eliminate the residual displacement of the structure after the earthquake.

[0003] Therefore, it is an urgent problem for technical personnel in this field to develop a damper that can not only dissipate energy and reduce shock when an earthquake occurs, but also realize the self-reset function of the structure after the earthquake. Summary of the invention

[0004] In view of this, the present invention provides a self-resetting damper and an installation method which can not only dissipate energy and reduce shock when an earthquake occurs, but also realize a self-resetting function of the structure after the earthquake.

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

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

[0007] The top of the middle box-type steel plate component is open and is arranged on the top of the lower box-type steel plate component; a plurality of partitions are arranged on the inner wall of the middle box-type steel plate component, and a groove penetrating the partition is arranged in the middle of the partition;

[0008] The upper box-type steel plate component is placed above the middle box-type steel plate component, and a gap is left between the upper box-type steel plate component and the middle box-type steel plate component;

[0009] The U-shaped steel energy dissipation assembly comprises: an upper end plate, a lower end plate and a U-shaped steel plate; the U-shaped steel plate is placed between the upper end plate and the lower end plate, and the lower end plate is placed on the top of the lower box-type steel plate component and connected to the lower box-type steel plate component;

[0010] One end of the pull rod passes through the upper box-type steel plate member and is connected to the upper box-type steel plate member, and the other end passes through the groove and is placed inside the middle box-type steel plate member and is connected to the upper end plate;

[0011] 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.

[0012] The beneficial effect of adopting the above technical scheme is that when the damper as a whole is subjected to the action of an earthquake, the upper box-type steel plate component and the pull rod move in the same direction, the nut moves in the same direction in the groove of the partition, the disc spring is compressed, and at the same time the U-shaped steel energy dissipation device is squeezed, the U-shaped steel plate bends and yields to dissipate energy, and the damper returns to its original position under the action of the disc spring after the earthquake, and the damper plays a self-resetting and energy-dissipating role, and the damper of the present invention has a simple structure and strong stability.

[0013] 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.

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

[0015] Preferably, the middle box-type steel plate member is composed of two vertically parallel steel plates, the partition is placed between the two steel plates, and the bottom of the steel plate is connected to the lower box-type steel plate member.

[0016] Preferably, the steel plate and the second 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 middle box-type steel plate member is more stable, thereby enhancing the structural stability of the damper.

[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 fixation between the pull rod and the upper box-type steel plate member is more stable, 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, there are four U-shaped steel plates, which are respectively located at the four sides of the lower end plate, and the U-shaped steel plates are connected to the upper end plate and the lower end plate by high-strength bolts. The position setting of the U-shaped steel plates makes the structure of the U-shaped steel energy dissipation assembly more stable, and the force applied by the pull rod can be evenly distributed on the four U-shaped steel plates to consume the energy generated in the earthquake.

[0019] Preferably, the nut and the rigid pad apply a certain pre-tightening force to the disc spring, and the distance between two adjacent partitions is the same as the distance between the two rigid pads after the disc spring is pre-tightened.

[0020] Preferably, the diameter of the circumscribed circle of the nut surface is smaller than the diameter of the groove, and the pull rod can drive the nut to move up and down in the groove when moving.

[0021] A method for installing a self-resetting damper, the installation steps are as follows:

[0022] S1, pre-install the upper box-type steel plate member, the middle box-type steel plate member, and the lower box-type steel plate member, and install the middle box-type steel plate member below the lower box-type steel plate member and fix it with a first triangular plate, place the U-shaped steel energy dissipation assembly inside the middle box-type steel plate member, and fix it to the top of the lower box-type steel plate member;

[0023] 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;

[0024] S3, at least two partitions are arranged inside the middle 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;

[0025] 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;

[0026] S5. Connect the bottom end of the pull rod to the upper end plate.

[0027] The beneficial effect of adopting the above technical solution is that the damper in the present invention has a simple structure, can be disassembled and replaced in time according to the above steps, has good energy consumption effect, strong self-resetting ability, and can be widely used in the construction field.

[0028] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a self-resetting damper and an installation method, which have the following beneficial effects:

[0029] (1) When the damper of the present invention is subjected to stress as a whole, the upper box-type steel plate component and the pull rod move in the same direction, the nut moves in the same direction in the groove of the partition plate, the disc spring is compressed, and the U-shaped steel energy dissipation component is squeezed, and the U-shaped steel plate bends and yields to dissipate energy. After the shock, the damper returns to its original position under the action of the disc spring, and the damper plays a role of self-reset and energy dissipation;

[0030] (2) The arrangement of the first stiffening rib, the second stiffening rib, the first triangular plate, and the second triangular plate in the present invention makes the structure between the upper box-type steel plate component, the lower box-type steel plate component, and the middle box-type steel plate component highly stable, and the structure is simple, easy to disassemble and assemble, highly stable, and can be widely used in the field of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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.

[0032] Figure 1 The accompanying drawing is a cross-sectional view of the damper provided by the present invention.

[0033] Among them, in the figure,

[0034] 1-Upper box-type steel plate component;

[0035] 101- flange plate; 102- stiffening rib;

[0036] 2- Second triangle plate;

[0037] 3-Tie rod

[0038] 4- disc spring elastic return assembly;

[0039] 401-nut; 402-rigid pad; 403-disc spring;

[0040] 5-partition;

[0041] 501-groove;

[0042] 6-U-shaped steel energy dissipation components;

[0043] 601-upper end plate; 602-U-shaped steel plate; 603-lower end plate; 604-high-strength bolts;

[0044] 7-tie rod fixing bolt; 8-first triangle plate;

[0045] 9-lower box type steel plate member;

[0046] 901-flange plate; 902-stiffening rib;

[0047] 10-intermediate box-type component steel plate;

[0048] 1001-Steel plate. DETAILED DESCRIPTION

[0049] 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.

[0050] The embodiment of the present invention discloses a self-resetting damper, comprising: an upper box-type steel plate component 1, an intermediate box-type steel plate component 10, a lower box-type steel plate component 9, a disc spring elastic reset component 4, a pull rod 3, and a U-shaped steel energy dissipation component 6; the top of the intermediate box-type steel plate component 10 is open and is arranged on the top of the lower box-type steel plate component 9; a plurality of partitions 5 are arranged on the inner wall of the intermediate box-type steel plate component 10, and a groove 501 penetrating the partition 5 is arranged in the middle of the partition 5; the upper box-type steel plate component 1 is placed above the intermediate box-type steel plate component 10, and a gap is left between the upper box-type steel plate component 10 and the intermediate box-type steel plate component 10; the U-shaped steel energy dissipation component 6 comprises: an upper end plate 601, a lower end plate 603 and a U-shaped steel plate 602; the U-shaped steel plate 602 is placed between the upper end plate 601 and the lower end plate The lower end plate 601 is placed on the top of the lower box-type steel plate member 9 and connected to the lower box-type steel plate member 9; one end of the pull rod 3 passes through the upper box-type steel plate member 1 and is connected to the upper box-type steel plate member 1, and the other end passes through the groove 501 and is placed inside the middle box-type steel plate member 10 and is connected to the upper end plate 601; the disc spring elastic reset assembly 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 5. The shape of the partition is not limited to a circle, and the shape of the required groove 501 can be selected as needed.

[0051] 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. A gap is left between the first flange plate 101 at the bottom of the upper box-type steel plate component 1 and the middle box-type steel plate component 10, and the size of the gap should be greater than the pre-compression design displacement of the disc spring 403.

[0052] In order to further optimize the above technical solution, the lower box-type steel plate component 9 includes: two parallel second flange plates 901 and second stiffening ribs 902 , and a plurality of second stiffening ribs 902 are provided and placed between the two second flange plates 901 .

[0053] In order to further optimize the above technical solution, the middle box-type steel plate component 10 is composed of two vertically parallel steel plates 1001, the partition 5 is placed between the two steel plates 1001, and the bottom of the steel plate 1001 is connected to the lower box-type steel plate component 9.

[0054] In order to further optimize the above technical solution, the steel plate 1001 and the second flange plate 901 at the top of the lower box-type steel plate component 9 are supported and fixed by a first triangular plate 8 .

[0055] In order to further optimize the above technical solution, the top of the tie rod 3 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 3 and the first flange plate 101 at the top of the upper box-type steel plate component 1 are supported and fixed by the second triangular plate 2.

[0056] In order to further optimize the above technical solution, four U-shaped steel plates 602 are provided, which are respectively located at the four sides of the lower end plate 603. The U-shaped steel plates 602 are connected to the upper end plate 601 and the lower end plate 603 by high-strength bolts 604. The lower end plate 603 is connected to the second flange plate 901 at the top of the lower box-type steel plate member 9 by welding or using high-strength bolts 604. A gap is left between the U-shaped steel energy dissipation device 6 and the two steel plates 1001 of the middle box-type steel plate member 10, and the size of the gap should be greater than the deformation displacement of the U-shaped steel plate 602 in the horizontal direction.

[0057] In order to further optimize the above technical solution, the nut 401 and the rigid pad 402 apply a certain pre-tightening force to the disc spring 403, and the distance between two adjacent partitions 5 is the same as the distance between the two rigid pads 402 after the disc spring 403 is pre-tightened.

[0058] In order to further optimize the above technical solution, the diameter of the circumscribed circle on the surface of the nut 401 is smaller than the diameter of the groove 501. The nut 401 is a customized nut, whose inner hole is circular, the inner diameter is slightly larger than the diameter of the pull rod 3, and 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 501.

[0059] A method for installing a self-resetting damper, the installation steps are as follows:

[0060] S1, pre-install the upper box-type steel plate member 1, the middle box-type steel plate member 10, and the lower box-type steel plate member 9, and install the middle box-type steel plate member 10 below the lower box-type steel plate member 9 and fix it with the first triangular plate 8, place the U-shaped steel energy dissipation component 6 inside the middle box-type steel plate member 10, and fix it to the top of the lower box-type steel plate member 9;

[0061] S2. Sleeve the disc spring 403, the rigid pad 402 and the nut 401 on the pull rod 3, 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 3;

[0062] S3. At least two partitions 5 are arranged inside the middle box-type steel plate member 10. A groove 501 is provided in the middle of the partition 5. The rigid pads 402 at both ends of the pre-tightened disc spring 403 are placed between two adjacent partitions 5. The distance between the two adjacent partitions 5 is the same as the distance between the two rigid pads 402 after the disc spring 403 is pre-tightened.

[0063] S4, passing the top of the tie rod 3 through the upper box-type steel plate member 1, the tie rod 3 is a threaded rod, the thread of the part where the tie rod 3 passes through the upper box-type steel plate member 1 is ground flat, and a plurality of second triangular plates 2 are provided on the side wall of the tie rod 3 to be fixed to the upper box-type steel plate member 1;

[0064] S5. Connect the bottom end of the pull rod 3 to the upper end plate 601 via the pull rod fixing bolt 604.

[0065] 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.

[0066] 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 damper, characterized in that: include: An upper box-type steel plate component (1), an intermediate box-type steel plate component (10), a lower box-type steel plate component (9), a disc spring elastic reset component (4), a pull rod (3), and a U-shaped steel energy dissipation component (6); The top of the middle box-type steel plate component (10) is open and is arranged on the top of the lower box-type steel plate component (9); a plurality of partitions (5) are arranged on the inner wall of the middle box-type steel plate component (10), and a groove (501) penetrating the partition (5) is arranged in the middle of the partition (5); The upper box-type steel plate component (1) is placed above the middle box-type steel plate component (10), and a gap is left between the upper box-type steel plate component (1) and the middle box-type steel plate component (10); The U-shaped steel energy dissipation component (6) comprises: an upper end plate (601), a lower end plate (603) and a U-shaped steel plate (602); the U-shaped steel plate (602) is fixed between the upper end plate (601) and the lower end plate (603); the lower end plate (603) is placed on the top of the lower box-type steel plate component (9) and is connected to the lower box-type steel plate component (9); One end of the pull rod (3) 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 (501) and is placed inside the middle box-type steel plate component (10) and is connected to the upper end plate (601); 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 (3), 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 (5).

2. A self-resetting damper 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 damper according to claim 1 or 2, characterized in that: The lower box-type steel plate component (9) comprises: two parallel second flange plates (901) and second stiffening ribs (902); a plurality of second stiffening ribs (902) are provided and are disposed between the two second flange plates (901).

4. A self-resetting damper according to claim 3, characterized in that: The middle box-type steel plate component (10) is composed of two vertically parallel steel plates (1001), the partition plate (5) is placed between the two steel plates (1001), and the bottom of the steel plate (1001) is connected to the lower box-type steel plate component (9).

5. A self-resetting damper according to claim 4, characterized in that: The steel plate (1001) and the second flange plate (901) at the top of the lower box-type steel plate component (9) are supported and fixed by a first triangular plate (8).

6. A self-resetting damper according to claim 2, characterized in that: The top of the tie rod (3) 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 (3) 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 (2).

7. A self-resetting damper according to any one of claims 1-2 and 4-6, characterized in that: Four U-shaped steel plates (602) are provided, respectively located at four sides of the lower end plate (603), and the U-shaped steel plates (602) are connected to the upper end plate (601) and the lower end plate (603) via high-strength bolts (604).

8. A self-resetting damper according to claim 7, characterized in that: The nut (401) and the rigid pad (402) apply a certain pre-tightening force to the disc spring (403), and the distance between two adjacent partitions (5) is the same as the distance between the two rigid pads (402) after the disc spring (403) is pre-tightened.

9. A self-resetting damper according to any one of claims 1-2, 4-6, and 8, characterized in that: The diameter of the circumscribed circle on the surface of the nut (401) is smaller than the diameter of the groove (501).

10. A method for installing a self-resetting damper 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 component (1), the middle box-type steel plate component (10), and the lower box-type steel plate component (9), installing the middle box-type steel plate component (10) below the lower box-type steel plate component (9), and fixing it with a first triangular plate (8), placing the U-shaped steel energy dissipation component (6) inside the middle box-type steel plate component (10), and fixing it to the top of the lower box-type steel plate component (9); S2, sleeve the disc spring (403), the rigid pad (402), and the nut (401) on the pull rod (3), 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 (3); S3, at least two partitions (5) are arranged inside the middle box-type steel plate member (10), the groove (501) is provided in the middle of the partition (5), the rigid pads (402) at both ends of the pre-tightened disc spring (403) are placed between two adjacent partitions (5), and the distance between the two adjacent partitions (5) 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 (3) through the upper box-type steel plate component (1), wherein the tie rod (3) is a threaded rod, grinding the thread of the portion where the tie rod (3) passes through the upper box-type steel plate component (1), and providing a plurality of second triangular plates (2) on the side wall of the tie rod (3) to be fixed to the upper box-type steel plate component (1); S5. Connect the bottom end of the pull rod (3) to the upper end plate (601) via high-strength bolts (604).

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