阅读说明：本技术 一种自复位阻尼器及安装方法 (Self-resetting damper and installation method ) 是由 陈云 禹文华 于 2019-11-25 设计创作，主要内容包括：本发明公开了一种自复位阻尼器,包括：上箱式钢板构件、中间箱式钢板构件、下箱式钢板构件、碟形弹簧弹性复位组件、拉杆、U型钢耗能组件；中间箱式钢板构件的内壁上设有多个隔板,隔板的中部开设贯穿隔板的凹槽；U型钢耗能组件包括：上端板、下端板以及U型钢板；拉杆的一端穿过上箱式钢板构件与上箱式钢板构件连接,另一端贯穿凹槽置于中间箱式钢板构件的内部,且与上端板连接；碟形弹簧弹性复位组件包括：碟形弹簧、刚性垫板以及螺母；碟形弹簧两端的刚性垫板抵接在相邻两个隔板之间。本发明中阻尼器既能在地震发生时可以耗能减震,又同时能在震后实现结构自复位功能。(The invention discloses a self-resetting damper, which comprises: the device comprises 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 assembly, a pull rod and a U-shaped steel energy consumption assembly; the inner wall of the middle box type steel plate component is provided with a plurality of clapboards, and the middle parts of the clapboards are provided with grooves which penetrate through the clapboards; u shaped steel power consumption subassembly includes: the upper end plate, the lower end plate and the U-shaped steel plate; one end of the pull rod penetrates through the upper box type steel plate component to be connected with the upper box type steel plate component, and the other end of the pull rod penetrates through the groove to be arranged inside the middle box type steel plate component and is connected with the upper end plate; the belleville spring elastic reset assembly includes: the disc spring, the rigid base plate and the nut; rigid backing plates at two ends of the disk spring are abutted between two adjacent partition plates. The damper 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 occurs.)

1. A self-resetting damper, comprising: the steel plate comprises an upper box type steel plate component (1), a middle box type steel plate component (10), a lower box type steel plate component (9), a disc spring elastic reset assembly (4), a pull rod (3) and a U-shaped steel energy consumption assembly (6);

the top of the middle box-type steel plate component (10) is open and is arranged at the top of the lower box-type steel plate component (9); a plurality of partition plates (5) are arranged on the inner wall of the middle box-type steel plate component (10), and grooves (501) penetrating through the partition plates (5) are formed in the middle of the partition plates (5);

the upper box-type steel plate component (1) is arranged above the middle box-type steel plate component (10), and a gap is reserved between the upper box-type steel plate component and the middle box-type steel plate component (10);

the U-shaped steel energy dissipation assembly (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 arranged between the upper end plate (601) and the lower end plate (603), and the lower end plate (601) is arranged on the top of the lower box-type steel plate member (9) and is connected with the lower box-type steel plate member (9);

one end of the pull rod (3) penetrates through the upper box type steel plate component (1) to be connected with the upper box type steel plate component (1), and the other end of the pull rod penetrates through the groove (501) to be arranged inside the middle box type steel plate component (10) and connected with the upper end plate (601);

the belleville spring elastic return assembly (4) comprises: a disc spring (403), a rigid backing plate (402), and a nut (401); the disc spring (403), the rigid base plate (402) and the nut (401) are all sleeved on the pull rod (5), the rigid base plate (402) is arranged at two ends of the disc spring (401), and the outer side of the rigid base plate (402) is fastened through the nut (401); rigid backing plates (402) at two ends of the disc spring (403) abut between two adjacent partition plates (5).

2. A self-resetting damper according to claim 1, characterized in that said upper box steel plate member (1) comprises: the structure comprises two parallel first flange plates (101) and a plurality of first stiffening ribs (102) arranged between the two first flange plates (101), wherein the number of the first stiffening ribs (102) is multiple.

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

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

5. A self-resetting damper according to claim 4, characterized in that the steel plate (1001) is supported and fixed with the second flange plate (901) on top of the lower box steel plate member (9) by the first triangular plate (8).

6. The self-resetting damper according to claim 2, characterized in that the top of the pull rod (3) penetrates and is placed on the top of the upper box type steel plate member (1), and the outer surface of the pull rod (3) and the first flange plate (101) on the top of the upper box type steel plate member (1) are supported and fixed through a second triangular plate (2).

7. The self-resetting damper according to any one of claims 1-2 and 4-6, wherein four U-shaped steel plates (602) are arranged at four sides of the lower end plate (603), and the U-shaped steel plates (602) are connected with the upper end plate (601) and the lower end plate (603) through high-strength bolts (604).

8. A self-resetting damper according to claim 7, characterized in that said nut (401) and said rigid plates (402) exert a pre-tensioning force on said belleville springs (403), the distance between two adjacent spacers (5) being the same as the distance between two rigid plates (402) after pre-tensioning of said belleville springs (403).

9. A self-resetting damper according to any one of claims 1-2 and 4-8, wherein the diameter of the circumcircle of the surface of said nut (402) is smaller than the diameter of said groove (501).

10. A self-resetting damper installation method of any one of claims 1-9, 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), fixing the middle box type steel plate component by using a first triangular plate (8), and placing the U-shaped steel energy dissipation assembly (6) inside the middle box type steel plate component (10) and fixedly connecting the U-shaped steel energy dissipation assembly with the top of the lower box type steel plate component (9);

s2, sleeving a disc spring (403), a rigid backing plate (402) and a nut (401) on a pull rod (3), placing the rigid backing plate (402) at two ends of the disc spring (403), placing the nut (401) at the outer side of the rigid backing plate (402), pressing the rigid backing plate (402) to apply a certain pre-pressure to the disc spring (403), and when multiple groups of elastic resetting assemblies (4) of the disc spring are arranged, arranging the multiple groups of elastic resetting assemblies (4) of the disc spring side by side along the axial direction of the pull rod (3);

s3, arranging at least two partition plates (5) in the middle box-type steel plate component (10), arranging the groove (501) in the middle of each partition plate (5), placing the rigid base plates (402) at two ends of the disk spring (403) after pre-tightening between two adjacent partition plates (5), wherein the distance between the two adjacent partition plates (5) is the same as the distance between the two rigid base plates (402) after the disk spring (403) is pre-tightened;

s4, enabling the top of the pull rod (3) to penetrate through the upper box type steel plate component (1), wherein the pull rod (3) is a threaded rod, grinding the threads of the part, penetrating through the upper box type steel plate component (1), of the pull rod (3), and arranging a plurality of second triangular plates (2) on the side wall of the pull rod (3) to be fixed with the upper box type steel plate component (1);

and S5, connecting the bottom end of the pull rod (3) with the upper end plate (601) through a pull rod fixing bolt (604).

Technical Field

The invention relates to the technical field of efficiency shock absorption, in particular to a self-resetting damper and an installation method.

Background

The metal damper can be divided into an axial yielding type damper, a shear yielding type damper, a bending yielding type damper and a torsional yielding type damper in a stress form, and compared with other types of dampers such as a visco-elastic type damper, a friction type damper, a viscous liquid type damper and the like, the metal damper is easy to process, stable in hysteretic performance, easy to replace, low in manufacturing cost and maintenance cost, and widely applied to the field of seismic reinforcement and restoration of engineering structures. However, most of dampers used for building structures at present are unidirectional energy dissipation due to various technical reasons, so that the actual energy dissipation and shock absorption effects are greatly limited, or only the energy dissipation and shock absorption effects are achieved, and the residual displacement of the structure after the earthquake cannot be eliminated.

Therefore, it is an urgent need to solve the problem of the art to develop a damper that can not only dissipate energy and reduce shock when an earthquake occurs, but also achieve a self-resetting function of the structure after the earthquake.

Disclosure of Invention

In view of the above, the invention provides a self-resetting damper and an installation method, wherein the self-resetting damper can consume energy and reduce shock when an earthquake occurs, and can realize a self-resetting function of a structure after the earthquake occurs.

In order to achieve the purpose, the invention adopts the following technical scheme:

a self-resetting damper comprising: the device comprises 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 assembly, a pull rod and a U-shaped steel energy consumption assembly;

the top of the middle box-type steel plate component is open and is arranged at the top of the lower box-type steel plate component; a plurality of clapboards are arranged on the inner wall of the middle box type steel plate component, and grooves penetrating through the clapboards are formed in the middle of the clapboards;

the upper box type steel plate component is arranged above the middle box type steel plate component, and a gap is reserved between the upper box type steel plate component and the middle box type steel plate component;

u shaped steel power consumption subassembly includes: the upper end plate, the lower end plate and the U-shaped steel plate; the U-shaped steel plate is arranged between the upper end plate and the lower end plate, and the lower end plate is arranged at the top of the lower box-type steel plate component and is connected with the lower box-type steel plate component;

one end of the pull rod penetrates through the upper box type steel plate component to be connected with the upper box type steel plate component, and the other end of the pull rod penetrates through the groove to be arranged inside the middle box type steel plate component and is connected with the upper end plate;

the belleville spring elastic reset assembly comprises: the disc spring, the rigid base plate and the nut; the disc spring, the rigid base plate and the nut are all sleeved on the pull rod, the rigid base plate is arranged at two ends of the disc spring, and the outer side of the rigid base plate is fastened through the nut; rigid backing plates at two ends of the disc spring are abutted between two adjacent partition plates.

The damper has the advantages that when the damper is subjected to the action of an earthquake integrally, 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, meanwhile, the U-shaped steel energy dissipation device is extruded, the U-shaped steel plate bends, yields and dissipates energy, the damper returns to the original position under the action of the disc spring after the earthquake, and the damper has the functions of self-resetting and energy dissipation.

Preferably, the upper box type steel plate member includes: the stiffening rib comprises two parallel first flange plates and a plurality of first stiffening ribs arranged between the two first flange plates. The arrangement of the first stiffening ribs can enhance the stability of the upper box steel plate member.

Preferably, the lower box type steel plate member includes: two parallel second flange boards and second stiffening rib, the second stiffening rib is equipped with a plurality ofly, arranges two between the second flange board. The arrangement of the second stiffening ribs can enhance the stability of the lower box-type steel plate member.

Preferably, the middle box-type steel plate component consists of two vertically parallel steel plates, the partition plate is arranged between the two steel plates, and the bottoms of the steel plates are connected with the lower box-type steel plate component.

Preferably, the steel plate and the second flange plate at the top of the lower box-type steel plate component are supported and fixed through the first triangular plate, so that the joint of the lower box-type steel plate component and the middle box-type steel plate component is more stable, and the structural stability of the damper is further enhanced.

Preferably, the top of pull rod runs through and arranges in go up the top of box steel sheet component, the surface of pull rod with go up box steel sheet component top support fixedly through the second set-square between the first flange board, make fixed more firm between pull rod and the last box steel sheet component, go up box steel sheet component and pull rod along the equidirectional motion during the assurance earthquake, and then realize dissipating seismic energy and from the function of restoring to the throne.

Preferably, the number of the U-shaped steel plates is four, the U-shaped steel plates are respectively located at four sides of the lower end plate, and the U-shaped steel plates are connected with the upper end plate and the lower end plate through high-strength bolts. The U shaped steel energy dissipation subassembly's structure is more stable for the position setting of U shaped steel board, and the power that the force that exerts can be even distributes on four U shaped steel boards to consuming the energy that produces in the earthquake.

Preferably, the nut and the rigid backing plate exert a certain pretightening force on the disc spring, and the distance between two adjacent partition plates is the same as the distance between two rigid backing plates after the disc spring is precompressed.

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

A self-resetting damper installation method comprises the following installation steps:

s1, pre-installing the upper box type steel plate component, the middle box type steel plate component and the lower box type steel plate component, installing the middle box type steel plate component below the lower box type steel plate component, fixing the middle box type steel plate component by using a first triangular plate, and placing the U-shaped steel energy dissipation assembly inside the middle box type steel plate component and fixedly connecting the U-shaped steel energy dissipation assembly with the top of the lower box type steel plate component;

s2, sleeving a disc spring, a rigid backing plate and a nut on the pull rod, placing the rigid backing plate at two ends of the disc spring, placing the nut at the outer side of the rigid backing plate, pressing the rigid backing plate to apply a certain pre-pressure to the disc spring, and arranging a plurality of groups of disc spring elastic reset assemblies side by side along the axial direction of the pull rod when the disc spring elastic reset assemblies are provided;

s3, arranging at least two partition plates in the middle box type steel plate component, arranging the groove in the middle of each partition plate, placing the rigid base plates at two ends of the pre-tightened disc spring between two adjacent partition plates, wherein the distance between the two adjacent partition plates is the same as the distance between the two rigid base plates after the disc spring is pre-tightened;

s4, enabling the top of the pull rod to penetrate through the upper box type steel plate component, enabling the pull rod to be a threaded rod, grinding the threads of the part, penetrating through the upper box type steel plate component, of the pull rod to be flat, and arranging a plurality of second triangular plates on the side wall of the pull rod to be fixed with the upper box type steel plate component;

and S5, connecting the bottom end of the pull rod with the upper end plate.

The damper has the advantages of being simple in structure, good in energy consumption effect and strong in self-resetting capability, being capable of being detached and replaced in time according to the steps, and being widely applied to the field of buildings.

According to the technical scheme, compared with the prior art, the invention discloses the self-resetting damper and the installation method, and the self-resetting damper has the beneficial effects that:

(1) when the damper is integrally stressed, 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, the U-shaped steel energy dissipation assembly is extruded, the U-shaped steel plate bends, yields and dissipates energy, the damper returns to the original position under the action of the disc spring after an earthquake, and the damper plays the roles of self-resetting and energy dissipation;

(2) according to the invention, the arrangement of the first stiffening rib, the second stiffening rib, the first triangular plate and the second triangular plate ensures that the stability of the structure among the upper box type steel plate component, the lower box type steel plate component and the middle box type steel plate component is strong, and the structure is simple, convenient to disassemble and assemble and strong in stability, and can be widely applied to the field of buildings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a sectional view of a damper according to the present invention.

Wherein, in the figure,

1-upper box type steel plate component;

101-a flange plate; 102-a stiffener;

2-a second set square;

3-draw bar

4-a disc spring elastic reset component;

401-a nut; 402-a rigid backing plate; 403-belleville springs;

5-a separator;

501-grooves;

6-U-shaped steel energy dissipation components;

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

7-a pull rod fixing bolt; 8-a first set square;

9-lower box steel plate component;

901-a flange plate; 902-a stiffener;

10-middle box type component steel plate;

1001-steel plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention discloses a self-resetting damper, which comprises: the device comprises an upper box type steel plate component 1, a middle 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 consumption component 6; the top of the middle box-type steel plate component 10 is open and is arranged at the top of the lower box-type steel plate component 9; a plurality of partition plates 5 are arranged on the inner wall of the middle box-type steel plate component 10, and a groove 501 penetrating through the partition plates 5 is formed in the middle of each partition plate 5; the upper box type steel plate component 1 is arranged above the middle box type steel plate component 10, and a gap is reserved between the upper box type steel plate component 1 and the middle box type steel plate component 10; u shaped steel power consumption subassembly 6 includes: an upper end plate 601, a lower end plate 603 and a U-shaped steel plate 602; the U-shaped steel plate 602 is arranged between the upper end plate 601 and the lower end plate 603, and the lower end plate 601 is arranged on the top of the lower box-type steel plate member 9 and is connected with the lower box-type steel plate member 9; one end of the pull rod 3 penetrates through the upper box type steel plate member 1 to be connected with the upper box type steel plate member 1, and the other end penetrates through the groove 501 to be arranged inside the middle box type steel plate member 10 and connected with the upper end plate 601; the belleville spring resilient return assembly 4 includes: belleville spring 403, rigid washer 402, and nut 401; the disc spring 403, the rigid backing plate 402 and the nut 401 are all sleeved on the pull rod 5, the rigid backing plate 402 is arranged at two ends of the disc spring 401, and the outer side of the rigid backing plate 402 is fastened through the nut 401; rigid back plates 402 at both ends of the disc spring 403 abut between the adjacent two partition plates 5. The shape of the partition is not limited to a circular shape, and the shape of the groove 501 may be selected as needed.

In order to further optimize the above technical solution, the upper box type steel plate member 1 includes: two parallel first flange plates 101 and a first stiffening rib 102 interposed between the two first flange plates 101, the first stiffening rib 102 being provided in plurality. 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 is larger than the pre-pressing design displacement of the belleville springs 403.

In order to further optimize the above technical solution, the lower box steel plate member 9 includes: two parallel second flange plates 901 and a plurality of second stiffening ribs 902, the second stiffening ribs 902 are arranged between the two second flange plates 901.

In order to further optimize the above technical solution, the middle box steel plate member 10 is composed of two vertically parallel steel plates 1001, the partition 5 is disposed between the two steel plates 1001, and the bottom of the steel plates 1001 is connected with the lower box steel plate member 9.

In order to further optimize the technical solution, the steel plate 1001 and the second flange 901 on the top of the lower box-type steel plate member 9 are supported and fixed by the first triangle 8.

In order to further optimize the technical scheme, the top of the pull rod 3 penetrates through and is arranged at the top of the upper box type steel plate component 1, and the outer surface of the pull rod 3 and the first flange plate 101 at the top of the upper box type steel plate component 1 are supported and fixed through the second triangular plate 2.

In order to further optimize the technical scheme, four U-shaped steel plates 602 are provided, and are respectively located at four sides of the lower end plate 603, the U-shaped steel plates 602 are connected with the upper end plate 601 and the lower end plate 603 through high-strength bolts 604, and the lower end plate 603 is connected with the second flange plate 901 at the top of the lower box-type steel plate member 9 through welding or by using the 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 component 10, and the size of the gap is larger than the deformation displacement of the U-shaped steel plate 602 in the horizontal direction.

In order to further optimize the technical scheme, the nut 401 and the rigid backing plate 402 apply a certain pretightening force to the disc spring 403, and the distance between two adjacent partition plates 5 is the same as the distance between two rigid backing plates 402 after the disc spring 403 is pretightened.

In order to further optimize the above technical solution, the diameter of the circumcircle of the surface of the nut 401 is smaller than the diameter of the groove 501. The nut 401 is a customized nut, the inner hole of which is circular, the inner diameter of which is slightly larger than the diameter of the pull rod 3, the outer periphery of which is polygonal, the outer diameter of which is smaller than the outer diameter of the rigid backing plate 402, and the outer diameter of the rigid backing plate 402 is larger than the diameter of the groove 501.

A self-resetting damper installation method comprises the following installation steps:

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, fixing the middle box type steel plate component by using the first triangular plate 8, and placing the U-shaped steel energy dissipation assembly 6 inside the middle box type steel plate component 10 and fixedly connecting the U-shaped steel energy dissipation assembly with the top of the lower box type steel plate component 9;

s2, sleeving the disc spring 403, the rigid backing plate 402 and the nut 401 on the pull rod 3, placing the rigid backing plate 402 at two ends of the disc spring 403, placing the nut 401 at the outer side of the rigid backing plate 402, pressing the rigid backing plate 402 to apply a certain pre-pressure to the disc spring 403, and when multiple groups of disc spring elastic reset assemblies 4 are arranged, arranging the multiple groups of disc spring elastic reset assemblies 4 side by side along the axial direction of the pull rod 3;

s3, arranging at least two partition plates 5 in the middle box type steel plate component 10, arranging a groove 501 in the middle of each partition plate 5, placing the rigid base plates 402 at two ends of the pre-tightened disc spring 403 between two adjacent partition plates 5, wherein the distance between the two adjacent partition plates 5 is the same as the distance between the two rigid base plates 402 after the disc spring 403 is pre-tightened;

s4, enabling the top of the pull rod 3 to penetrate through the upper box type steel plate component 1, enabling the pull rod 3 to be a threaded rod, grinding the threads of the part, penetrating through the upper box type steel plate component 1, of the pull rod 3 to be flat, and arranging a plurality of second triangular plates 2 on the side wall of the pull rod 3 to be fixed with the upper box type steel plate component 1;

and S5, connecting the bottom end of the pull rod 3 with the upper end plate 601 through a pull rod fixing bolt 604.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.