KR20240111657A - Steel plate damper with improved stiffness and ductility - Google Patents

Abstract

The present invention relates to a steel damper with improved rigidity and ductility, and more specifically, to a first fixing plate formed in a plate shape and connected to the upper part of a building, and a second fixing plate formed in a plate shape and connected to the lower part of the building. and a plurality of steel plates provided between the first and second fixing plates, wherein when a force is applied in the horizontal direction on the first and second fixing plates, the steel plates are elastically and plastically deformed to form the This relates to a steel damper with improved rigidity and ductility that can easily absorb vibrations generated in buildings.

Description

Steel plate damper with improved stiffness and ductility}

The present invention relates to a steel damper with improved rigidity and ductility, and more specifically, to a steel damper with improved rigidity and ductility that can efficiently absorb vibration by providing steel plates with different rigidity and ductility in parallel. .

The number of high-rise buildings in cities is increasing, and as earthquakes have recently occurred frequently in Korea, design for earthquake resistance, vibration isolation, and seismic isolation is needed.

As part of this design, various vibration absorption devices such as steel dampers and fluid dampers are being developed.

Among these, steel dampers have the problem that conventionally, when rigidity and strength are high, ductility is low, and when ductility is high, rigidity and strength are small; in order to simultaneously increase rigidity, strength, and ductility, there is no choice but to increase the size of the steel plate uneconomically; , there was a problem that it could not be used due to its size depending on the conditions of the application site.

To solve this problem, we would like to propose a technology to increase initial rigidity and strength and secure additional ductility by connecting dampers with different performances in parallel to secure ductility while maintaining high rigidity and strength.

Meanwhile, Patent Document 1 discloses technology regarding an “anti-buckling bending steel damper,” and the invention relates to a structural damper for dissipating vibration energy due to vibration or impact due to an earthquake acting on various structures.

The anti-buckling bending type steel damper according to the above invention has an advantage in that it can prevent buckling, but there remains a problem in that it cannot efficiently absorb vibration by securing both rigidity and ductility.

Republic of Korea Patent Publication No. 10-2018-0070999

Therefore, the present invention was developed to solve the problems of the prior art as described above, and is a steel damper with improved rigidity and ductility that can efficiently absorb vibration by providing steel plates with different rigidity and ductility in parallel. It is for that purpose.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems to be solved by the present invention not mentioned herein can be explained to those skilled in the art from the description below. You will be able to understand it clearly.

In order to achieve the above object, the steel damper with improved rigidity and ductility according to the present invention is formed in a plate shape, a first fixing plate connected to the upper part of the building, and a first fixing plate formed in a plate shape and connected to the lower part of the building. It includes a second fixing plate and a plurality of steel plates provided between the first and second fixing plates, and when a force is applied in the horizontal direction on the first and second fixing plates, the steel plates undergo elastic and plastic deformation. This is characterized in that the vibration generated in the building is easily absorbed.

In addition, the steel plate of the present invention is characterized in that it is joined to the first fixing plate and the second fixing plate by welding.

In addition, the steel plate of the present invention includes a first steel plate provided between the first and second fixing plates, a second steel plate disposed in parallel and spaced apart in front of the first steel plate, and the first steel plate. It is characterized in that it is provided in plural pieces between the first and second fixing plates, including a third steel plate arranged in parallel and spaced apart from the rear of.

In addition, the first steel plate, the second steel plate, and the third steel plate of the present invention are coupled to one side of the first steel plate and are spaced a certain distance apart from the first steel plate, and the second steel plate is It is characterized in that it includes a second steel material coupled to one side of.

In addition, the first steel plate of the present invention includes a first support portion that connects the first steel material and the second steel material to each other and is formed with less ductility than rigidity, and the second steel plate and the third steel plate are The first steel material and the second steel material are connected to each other, and are characterized by including a second support portion that is formed to be more ductile than rigid.

As described above, according to the present invention, the steel damper with improved rigidity and ductility has the effect of simultaneously improving rigidity and ductility by connecting a plurality of steel plates with different rigidity and ductility in parallel.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the detailed description and claims.

Figure 1 is a conceptual perspective view showing the installation state of a steel damper with improved rigidity and ductility according to the present invention.
Figure 2 is a plan view of a steel damper with improved rigidity and ductility according to the present invention.
Figure 3 is a side cross-sectional view of a steel damper with improved rigidity and ductility according to the present invention.
Figure 4 is a front view showing the first and third steel plates of the steel damper with improved rigidity and ductility according to the present invention.
Figure 5 is a front view showing the second steel plate of the steel damper with improved rigidity and ductility according to the present invention.

The terms used in this specification will be briefly explained, and the present invention will be described in detail.

The terms used in the present invention are general terms that are currently widely used as much as possible while considering the functions in the present invention, but this may vary depending on the intention or precedent of a person working in the art, the emergence of new technology, etc. Therefore, the terms used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, rather than simply the name of the term.

When it is said that a part “includes” a certain element throughout the specification, this means that it does not exclude other elements, but may further include other elements, unless specifically stated to the contrary.

Below, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein.

Specific details, including the problem to be solved by the present invention, the means for solving the problem, and the effect of the invention, are included in the examples and drawings described below. The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings.

Figure 1 is a conceptual perspective view showing the installation state of a steel damper with improved rigidity and ductility according to the present invention, Figure 2 is a plan view of a steel damper with improved rigidity and ductility according to the present invention, and Figure 3 is a diagram showing the rigidity and ductility according to the present invention. A side cross-sectional view of the improved steel damper, Figure 4 is a front view showing the first and third steel plates of the steel damper with improved rigidity and ductility according to the present invention, and Figure 5 is a steel damper with improved rigidity and ductility according to the present invention. This is a front view showing the second trial of .

Hereinafter, a steel damper with improved rigidity and ductility according to the present invention will be described in detail with reference to the attached drawings.

The purpose of the steel damper with improved rigidity and ductility according to the present invention is to provide a steel damper with improved rigidity and ductility that can efficiently absorb vibration by providing steel plates with different rigidity and ductility in parallel.

Referring to Figure 1, the steel damper with improved rigidity and ductility according to the present invention is formed in a plate shape, a first fixing plate 100 connected to the upper part of the building, and a first fixing plate 100 formed in a plate shape and connected to the lower part of the building. It includes a second fixing plate 200 and a plurality of steel plates 300 provided between the first fixing plate 100 and the second fixing plate 200.

First, the first fixing plate 100 and the second fixing plate 200 are prepared. The first fixing plate 100 and the second fixing plate 200 are respectively connected to the upper and lower parts of the building. And, the first fixing plate 100 and the second fixing plate 200 are formed in a plate shape. Additionally, the first fixing plate 100 and the second fixing plate 200 may be formed in a square shape, and may be formed in any shape as long as they can be connected to the building.

Next, the steel plate 300 is prepared. The steel plate 300 is formed in a plate shape and may be provided between the first fixing plate 100 and the second fixing plate 200. Accordingly, when a force is applied in the horizontal direction on the first fixing plate 100 and the second fixing plate 200, the steel plate 300 is elastically and plastically deformed to easily absorb vibration generated in the building. Let’s do it.

Additionally, the steel plate 300 may be joined to the first fixing plate 100 and the second fixing plate 200 by welding. At this time, the welding is improvement welding, and it is preferable that the height is 10mm.

Additionally, the steel plate 300 may be formed of structural steel. The steel plate 300 may be formed of, for example, SS275 material.

In addition, the steel plate 300 is parallel to the first steel plate 301 provided between the first fixing plate 100 and the second fixing plate 200 and spaced forward of the first steel plate 301. The first fixing plate 100 and the second fixing plate 200, including a second steel plate 302 arranged in parallel and spaced apart from the rear of the first steel plate 301, and a third steel plate 303 arranged in parallel. It may be provided in plural numbers.

In addition, the first steel plate 301, the second steel plate 302, and the third steel plate 303 are a first steel plate 310 coupled to one side of the first fixing plate 100, and the first steel plate 303. It includes a second steel member 320 that is separated from the steel member 310 by a certain distance and is coupled to one side of the second fixing plate 200.

The first steel material 310 is vertically coupled to the first fixing plate 100 and is formed in a square plate shape. The second steel material 320 is vertically coupled to the second fixing plate 200 and is formed in a square plate shape. More specifically, the damping performance of the first steel material 310 and the second steel material 320 can be determined by thickness, length, and width. As a result of several experiments, the width was 280 mm and the length was 135 mm. It is preferable that the thickness is 18mm.

In addition, the first steel plate 301 connects the first steel material 310 and the second steel material 320 to each other, and includes a first support portion 330 that is formed to have less ductility than rigidity, and The second steel plate 302 and the third steel plate 303 connect the first steel material 310 and the second steel material 320 to each other, and include a second support portion 340 that is formed to be more ductile than rigid. .

The first support portion 330 and the second support portion 340 are formed in a rectangular plate shape that connects the first steel material 310 and the second steel material 320 to each other. More specifically, the damping performance of the first support part 330 and the second support part 340 can be determined by the thickness, length, and width, and as a result of several experiments, the first support part 330 Width is 30mm, length is 220mm. The thickness is 18mm, and the width of the second support part 340 is 59mm and the length is 220mm. It can be formed to have a thickness of 18mm.

In addition, the corners of both ends of the first support part 330 and the second support part 340 and the contact area between the first steel material 310 and the second steel material 320 are curved to reinforce the vertical load of the support part. can do. At this time, the curvature value (R) is preferably set to 15.

In summary, the first steel plate 301, the second steel plate 302, and the third steel plate 303 are arranged in parallel at regular intervals between the first fixed plate 100 and the second fault plate, and It is formed with different physical properties by the first support part 330 and the second support part 340.

In addition, the steel damper with improved rigidity and ductility according to the present invention may further include a connection groove 400.

The connection groove 400 is formed on one side of the first fixing plate 100 and the second fixing plate 200 so that it can be connected to the building. The connection groove 400 may be connected to, for example, reinforcing bars provided on the inner wall of the building. The connection groove 400 may be formed in a circular shape, and may be formed in any shape as long as it can be connected to the building. And, of course, the connection grooves 400 may be formed in plural numbers.

As such, a person skilled in the art will understand that the technical configuration of the present invention described above can be implemented in other specific forms without changing the technical idea or essential features of the present invention.

Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the claims described later rather than the detailed description above, and the meaning and scope of the claims and their All changes or modified forms derived from the equivalent concept should be construed as falling within the scope of the present invention.

10: Steel damper with improved rigidity and ductility
100: 1st fixing plate
200: 2nd fixing plate
300: Steel plate
301: First trial
302: Second trial
303: Third trial
310: 1st steel material
320: 2nd steel material
330: first support portion
340: second support portion
400: Connection groove

Claims (5)

A first fixing plate formed in a plate shape and connected to the upper part of the building;
A second fixing plate formed in a plate shape and connected to the lower part of the building; and
It includes a steel plate provided between the first and second fixing plates,
When a force is applied in the horizontal direction on the first and second fixing plates, the steel plate is elastically and plastically deformed to easily absorb vibrations generated in the building. A steel material with improved rigidity and ductility. Damper.
According to clause 1,
The steel plate is,
A steel damper with improved rigidity and ductility, characterized in that it is joined to the first and second fixing plates by welding.
According to clause 1,
The steel plate is,
A first steel plate provided between the first and second fixed plates;
a second steel plate arranged in parallel and spaced apart in front of the first steel plate; and
A steel damper with improved rigidity and ductility, characterized in that it is provided in plural pieces between the first and second fixing plates, including a third steel plate arranged in parallel and spaced apart from the rear of the first steel plate.
According to clause 3,
The first, second, and third trials are:
A first steel material coupled to one side of the first fixing plate; and
A steel damper with improved rigidity and ductility, comprising a second steel material coupled to one side of the second fixing plate at a certain distance from the first steel material.
According to clause 4,
The first trial was,
It includes a first support part that connects the first steel material and the second steel material to each other, but is formed to have less ductility than rigidity,
The second and third trials are:
A steel damper with improved rigidity and ductility, comprising a second support portion that connects the first steel material and the second steel material to each other and has greater ductility than rigidity.