KR102490855B1 - reinforceing device for seismic - Google Patents

Abstract

The present invention relates to a seismic reinforcement device and, more specifically, to a seismic reinforcement device which is installed to connect upper and lower slabs of a building or a structure, such that when vibration occurs, both horizontal and vertical vibrations can be significantly reduced, and excessive displacement can be prevented, thereby enhancing the durability of the building or the structure. The seismic reinforcement device comprises: an upper member installed on an upper slab; a lower member installed on a lower slab; and a rotating plate installed on the upper member and the lower member so that the top and the bottom of the rotating plate can rotate, respectively. A pair of upper pressure plates are installed on the bottom of the upper member, and a pair of lower pressure plates are installed on the top of the lower member. The top of the rotating plate is installed to be rotatable between the upper pressure plates, and the bottom of the rotating plate is installed to be rotatable between the lower pressure plates.

Description

Reinforcement device for seismic}

The present invention relates to an earthquake-resistant reinforcing device, and more particularly, when installed to connect the upper and lower slabs of a building or structure, when vibration occurs, both horizontal and vertical vibrations can be significantly reduced and excessive displacement can be reduced. It relates to an earthquake-resistant reinforcing device capable of increasing the durability of a building or structure by preventing it.

In general, in order to reduce damage from earthquakes, buildings are prepared for earthquakes from the beginning of design, and this is called seismic design. Methods such as seismic isolation, vibration suppression, and vibration retardation may be mentioned, and these methods can reduce damage caused by earthquakes to buildings by increasing seismic resistance of buildings.

More specifically, earthquake-resistance is a method of reducing human casualties to a minimum by reinforcing vulnerable structures and designing them flexibly so that buildings do not collapse even when damaged by an earthquake.

Seismic isolation is to reduce the damage caused by an earthquake between a building and the ground. In other words, by using laminated rubber, dampers, bearings, etc. between the basement and the ground of the building, the impact in the event of an earthquake is reduced to some extent, and the vibration frequency is reduced in the actual building, so there is little damage to the interior.

Seismic control is a method of offsetting vibration by installing a pendulum or damper that accounts for about 1% of the total weight of the building inside the building and moving it in the opposite direction to the vibration of the building when an earthquake occurs.

In addition, earthquake is an ultimate method for preventing damage caused by an earthquake, and is a structure that completely separates the ground and a building using air bearings, magnetic force, buoyancy, etc., so as not to be affected by an earthquake at all.

As described above, various earthquake-resistant devices are applied as a way to protect a building from an earthquake when a building is built, and Korean Patent Registration No. 10-1765108 as shown in FIGS. 1 and 2 is one of the prior art related thereto. There is a technology described in, the technical features of which are fixed to the lower slab (1) of the building a first fixed plate (10); A post 50 to which the second fixing plate 30 is coupled and fixed to the lower end; a vibration reducing unit 200 installed between the first fixing plate 10 and the second fixing plate 30 to reduce transmission of vibration to the post 50 when an earthquake occurs; a sensor unit 60 selectively installed on the first fixing plate 10 or the second fixing plate 30; It includes a cover formed around the vibration reducing member, wherein the vibration reducing unit 200 is formed to face each of the first fixing plate 10 and the second fixing plate 30 and is fastened by bolts or the like. A first coupling portion 211 and a second coupling portion 212 having a plurality of first fastening holes 214 are formed, connecting the first coupling portion 211 and the second coupling portion 212. At the same time as the curved portion 213 is formed, an elliptical through hole is formed at the midpoint of the curved portion 213 in the longitudinal direction of the curved portion 213, the vibration damping plate 210 having a structure 'S' structure, In order to prevent the vibration reduction plate 210 from being corroded by water and at the same time to supplement its rigidity and elasticity, it is cut into a shape corresponding to the vibration reduction plate 210, and the inner/outer side of the vibration reduction plate 210 It is inserted into the through hole of the carbon sheet 216 attached to and the vibration reduction plate 210, and both ends are rotatably connected to the first coupling part 211 and the second coupling part 212, respectively, and at the same time A vibration reduction damper 220 composed of a hydraulic piston 221 whose length can be adjusted by hydraulic pressure, and a spring formed outside the hydraulic piston 221 to supplement the vertical support of the hydraulic piston 221, A pair of vertical plates 231 rotatably connected to both ends of the hydraulic piston 221 of the vibration damper 220 are formed, and the first fastening holes 214 and corresponding second fastening holes 233 ) are formed and fixed to the first fixing plate 10 and the second fixing plate 30 together with the first coupling part 211 and the second coupling part 212 of the vibration reducing plate 210, respectively. By being formed of a plate 231, it is characterized in that it is configured to include a pair of connection brackets 230 having a 'ㅠ (ㅛ)' shape.

By the way, the technology described in Korean Patent Registration No. 10-1765108 has the advantage of absorbing vibrations in vertical and horizontal directions at the same time, but the degree of reduction of vibrations occurring in vertical and horizontal directions is not great, so if the vibration is large, it is still dangerous. There is a problem.

Korean Registered Patent No. 10-1765108 (registered on July 31, 2017)

The present invention has been made to solve the above problems, and an object of the present invention is composed of an upper member installed on the side of an upper slab constituting a building or structure and a lower member installed on the side of a lower slab, and an upper member The upper and lower members are coupled so that the upper and lower ends of the rotating plate are rotatable, respectively, and the upper and lower members are provided with upper and lower pressing plates that press the front and rear surfaces of the rotating plate, so that the rotating plate rotates when vibration occurs. To provide an earthquake-resistant reinforcing device capable of reducing both horizontal and vertical vibrations by a significant amount because the vertical height changes when the rotating plate rotates.

And, another object of the present invention is that the upper pressing plate that presses from the front and rear of the rotating plate has an insertion protrusion protruding downward, and an accommodation groove into which the insertion protrusion is inserted is formed at the top of the lower pressing plate, and the insertion protrusion and It is to provide an earthquake-resistant reinforcing device capable of increasing the durability of a building or structure by forming a spaced space between accommodating grooves to prevent excessive horizontal and vertical displacement when vibration occurs.

In addition, another object of the present invention is to further provide an anti-vibration member made of rubber, synthetic rubber, etc. between a plurality of rotation plates installed to be rotatable at a predetermined angle between the pressure plates, so that even if strong vibration occurs, it can be stably reduced. It is to provide an earthquake-resistant reinforcement device.

The present invention to solve these problems;

It is characterized in that it consists of an upper member installed on the upper slab, a lower member installed on the lower slab, and a rotation plate installed so that upper and lower ends are rotatably installed on the upper and lower members, respectively.

Here, a pair of upper press plates are installed at the lower part of the upper member, a pair of lower press plates are installed at the upper part of the lower member, and the upper part of the rotating plate is installed to be rotatable between the upper press plates. And, the lower part of the rotation plate is characterized in that it is rotatably installed between the lower pressing plate.

At this time, the upper pressure plate and the lower pressure plate are made of an elastic material and pressurize the rotation plate located on the inside from the front and rear, and the vibration is reduced by frictional force generated when the rotation plate rotates. .

In addition, a plurality of rotation plates are installed in a trapezoidal shape, and adjacent rotation plates are installed so that their vertical directions are reversed.

Here, a vibration isolating member made of rubber or synthetic rubber is further provided between the rotating plates.

At this time, insertion protrusions are formed in the lower part of the upper pressing plate so as to protrude downward at regular intervals, and receiving grooves into which the insertion protrusions are inserted are formed in the upper part of the lower pressing plate, and there is a gap between the insertion protrusions and the receiving grooves. It is characterized by the formation of space.

On the other hand, the upper member includes an upper coupling bracket installed on the upper slab, an upper frame installed below the upper coupling bracket, an upper connecting plate installed to protrude downward from the lower portion of the upper frame, and the upper coupling plate. It consists of the upper pressing plate, the upper part of which is coupled to the front and rear surfaces, and the lower member is a lower coupling bracket installed on the lower slab, a lower frame installed on top of the lower coupling bracket, and an upper portion of the lower frame. It is characterized in that it consists of a lower connecting plate installed to protrude upward, and the lower pressing plate whose lower parts are coupled to the front and rear surfaces of the lower connecting plate.

Here, the upper frame and the lower frame are formed in a picture frame shape, and an 'X'-shaped reinforcing member is installed on the inside.

In addition, the upper coupling bracket and the lower coupling bracket include an embed plate coupled to the side surface of the upper slab or lower slab, a base plate installed perpendicularly to the embed plate, and a constant length between the embed plate and the base plate along the longitudinal direction. It is characterized in that it consists of lip plates installed at intervals.

According to the present invention having the above configuration, the upper member installed on the side of the upper slab constituting the building or structure and the lower member installed on the side of the lower slab, the upper member and the lower member are the upper and lower ends of the rotating plate. The upper and lower members are respectively coupled to be rotatable, and the upper and lower members are provided with upper and lower pressing plates that press the front and rear surfaces of the rotating plate, so that when vibration occurs, when the rotating plate rotates, it vibrates by friction with the pressing plate. And since the vertical height changes when the rotating plate rotates, both horizontal and vertical vibrations can be significantly reduced.

And, in the present invention, the upper pressing plate that presses the front and rear of the rotating plate has an insertion protrusion protruding downward, and an accommodation groove into which the insertion projection is inserted is formed on the top of the lower press plate, and between the insertion projection and the accommodation groove. A separation space is formed to prevent excessive horizontal and vertical displacement when vibration occurs, thereby increasing the durability of a building or structure.

In addition, the present invention further provides an anti-vibration member made of rubber, synthetic rubber, etc. between a plurality of rotation plates installed to be rotatable at a predetermined angle between the press plates, so that strong vibration can be stably reduced even if it occurs. .

1 is a structural diagram of a conventional earthquake-resistant reinforcing structure.
2 is a perspective view of a rolling reduction unit of a conventional earthquake-resistant reinforcing structure.
3 is an external perspective view of an earthquake-resistant reinforcing device according to the present invention.
Figure 4 is an inside perspective view of a state in which one side of the pressure plate of the earthquake-resistant reinforcing device according to the present invention is removed.
5 is a front conceptual view of a rotating plate of the earthquake-resistant reinforcing device according to the present invention in a rotated state.
6 is a conceptual side view of an earthquake-resistant reinforcing device according to the present invention.
7 is a conceptual diagram of a frame for testing by installing an earthquake-resistant reinforcing device according to the present invention.
8 is a graph of a hysteresis curve showing rotation angles before and after installing an earthquake-resistant reinforcing device according to the present invention.
9 is an inside perspective view of a state in which one side pressure plate of an earthquake-resistant reinforcing device is removed according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The same reference numerals are used for the same components in the drawings, and redundant descriptions of the same components are omitted. And, it should be understood that the present invention may be embodied in many different forms and is not limited to the described embodiments.

The present invention relates to a seismic reinforcement device installed in a building or structure to increase seismic performance, and as shown in FIGS. 3 to 8, the configuration includes an upper member 300 installed on an upper slab in a building or structure and a lower slab It consists of a lower member 400 installed on the upper member 300 and the lower member 400, and a rotation plate 500 installed so that upper and lower ends are rotatable, respectively.

Thus, when vibration is applied to a building or structure by an earthquake or the like, up and down displacement occurs while the rotation plate 500 rotates, thereby reducing both horizontal vibration and vertical vibration at the same time.

Also, a pair of upper pressure plates 340 are installed under the upper member 300, and a pair of lower pressure plates 440 are installed above the lower member 400.

Here, the upper portion of the rotation plate 500 is rotatably installed between the upper pressure plates 340 and the lower portion of the rotation plate 500 is rotatably installed between the lower pressure plates 440. .

At this time, the upper pressure plate 340 and the lower pressure plate 440 are made of an elastic material, and the pair of upper pressure plate 340 and lower pressure plate 440 are the rotation plate 500 located on the inside. The top and bottom of the are pressed from the front and rear, respectively.

So, when vibration is applied to a building or structure due to an earthquake or the like, the rotation plate 500 rotates due to the vibration. When the rotation plate 500 rotates, the upper pressure plate 340 and the lower pressure plate 440 ) generates frictional force by the force that presses the rotating plate 500 located inside, and vibration energy is reduced by the frictional force, thereby performing an earthquake-resistant action.

In addition, as described above, since the upper member 300 is connected to the upper portion of the rotation plate 500 and the lower member 400 is connected to the lower portion of the rotation plate 500, vertical displacement occurs when the rotation plate 500 rotates. However, when vertical displacement occurs, the vibration energy is reduced once more by the restoring force of the building or structure, thereby reducing the vibration energy to a greater extent.

Therefore, when vibration is applied in the horizontal direction, the vibration energy is reduced according to the above-described process, and when vibration is applied in the vertical direction, the distance between the upper member 300 and the lower member 400 changes, and accordingly the rotation As the plate 500 rotates, vibration energy is reduced by frictional force generated between the upper and lower pressure plates 340 and 440 .

On the other hand, as shown in the drawing, the rotation plate 500 is formed long in the vertical direction, but is formed in a trapezoidal shape in which one side is formed long and the other side is formed relatively short in width, so that the upper and lower pressing plates 340 and 440 A plurality is installed at predetermined intervals along the length direction of.

Here, the rotation plate 500 formed in a trapezoidal shape is installed such that adjacent rotation plates 500 are reversed in up and down directions. As shown in FIG. 9, an anti-vibration member 510 ) may be further provided.

At this time, the anti-vibration member 500 is made of rubber or synthetic rubber, extends to the body 512 supporting the upper or lower portion of the rotation plate 500 and the upper or lower portion of the body 512, thereby performing the rotation. It consists of an insertion part 514 inserted between the plates 500 and elastically presses the side surfaces of the rotation plate 500 located on both sides.

So, as described above, strong vibration energy is applied by reducing the vibration energy by doubly by the elastic force of the insertion part 514 of the anti-vibration member 500 as well as the frictional force by the upper and lower pressing plates 340 and 440. can be reduced stably.

In addition, insertion protrusions 342 are formed to protrude downward at regular intervals along the lengthwise direction at the lower part of the upper pressing plate 340, and the insertion protrusions 342 are inserted into the upper part of the lower pressing plate 440. A receiving groove 442 is formed.

Here, the insertion protrusion 342 and the insertion groove 442 are formed in a trapezoidal shape to correspond to each other, and a separation space is formed between the insertion protrusion 342 and the insertion groove 442 at predetermined intervals.

So, when vibration is applied to a structure or building from the outside due to an earthquake or the like, as the rotation plate 500 rotates, the distance between the insertion protrusion 342 and the insertion groove 442 becomes closer and finally comes into contact, thereby causing the rotation Excessive rotation of the plate 500 is prevented and, accordingly, excessive loads are prevented from being applied to a building or structure, thereby increasing durability.

In addition, when the earthquake-resistant reinforcing device of the present invention as described above is installed in a structure or building, an experiment was performed to confirm the seismic performance. When the same vibration was applied before and after installing the seismic reinforcement device, the plastic deformation of the first floor column was measured.

As shown in FIG. 8, it can be seen that the plastic deformation of the column of the frame is greatly reduced after reinforcement compared to before reinforcement.

On the other hand, the upper member 300 is installed in the upper coupling bracket 310 installed on the upper slab, the upper frame 320 installed under the upper coupling bracket 310, and the lower portion of the upper frame 320 downward. It consists of an upper connection plate 330 installed so as to protrude.

Here, the top of the upper pressing plate 340 is coupled to the front and rear surfaces of the upper connecting plate 330 by means of bolt coupling, respectively, and the rotation plate rotatably installed between the upper pressing plate 340 ( 500) is formed to have the same thickness as the upper connecting plate 330 and is firmly pressed to the front and rear surfaces by the upper pressing plate 340.

In addition, the lower member 400 has a lower coupling bracket 410 installed on the lower slab, a lower frame 420 installed on top of the lower coupling bracket 410, and an upper portion of the lower frame 420 in an upward direction. It consists of a lower connecting plate 430 installed so as to protrude.

At this time, the upper part of the lower pressing plate 440 is coupled to the front and rear surfaces of the lower connecting plate 430 by bolt coupling, respectively, and the rotation plate rotatably installed between the lower pressing plate 440 ( 500) is formed to have the same thickness as the lower connecting plate 430, so that the front and rear surfaces are firmly pressed by the lower pressing plate 440.

In addition, the upper frame 320 and the lower frame 420 are formed in a frame shape, and 'X'-shaped reinforcing members 322 and 422 are installed inside the upper frame 320 and the lower frame 420, Even when strong vibration energy is applied, the upper and lower pressing plates 340 and 440 installed at the lower or upper portions are stably supported without being deformed.

In addition, the upper coupling bracket 310 and the lower coupling bracket 410, which are directly installed on the slab of a building or structure, are perpendicular to the embed plates 312 and 412 coupled to the side surfaces of the upper slab or lower slab and the embed plates 312 and 412. It is installed so as to be composed of base plates 314 and 414 to which the upper frame 320 or the lower frame 420 is coupled to the lower or upper portion.

Here, lip plates 316 and 416 are installed at regular intervals along the length direction between the embed plates 312 and 412 and the base plates 314 and 414 to reduce the overall weight while maintaining strength, so that the slab is firmly secured by using bolts or the like make it fixed

Thus, vibration energy applied to a building or structure by the upper and lower pressing plates 340 and 440 and the rotating plate 500 can be stably reduced.

Although preferred embodiments of the present invention have been described above, the scope of the present invention is not limited thereto, and the spirit of the present invention extends to those within the scope substantially equivalent to the embodiments of the present invention. Various modifications and implementations are possible by those skilled in the art to which the present invention pertains within the scope that does not deviate from the above.

The present invention relates to an earthquake-resistant reinforcing device, and more particularly, when installed to connect the upper and lower slabs of a building or structure, when vibration occurs, both horizontal and vertical vibrations can be significantly reduced and excessive displacement can be reduced. It relates to an earthquake-resistant reinforcing device capable of increasing the durability of a building or structure by preventing it.

300: upper member 310: upper coupling bracket
320: upper frame 330: upper connecting plate
340: upper pressing plate 400: lower member
410: lower coupling bracket 420: lower frame
430: lower connecting plate 440: lower pressing plate
500: rotating plate 510: anti-vibration member

Claims (9)

It consists of an upper member installed on the upper slab, a lower member installed on the lower slab, and a rotating plate installed so that the upper and lower ends are rotatable on the upper and lower members, respectively.
A pair of upper pressing plates are installed under the upper member,
A pair of lower pressure plates are installed on the upper part of the lower member,
The upper part of the rotating plate is rotatably installed between the upper pressing plates,
The lower part of the rotating plate is rotatably installed between the lower pressing plate,
The upper pressure plate and the lower pressure plate are made of an elastic material and pressurize the rotation plate located inside from the front and rear,
An earthquake-resistant reinforcing device characterized in that the vibration is reduced by frictional force generated when the rotating plate rotates.
delete delete According to claim 1,
A plurality of the rotating plates are installed in a trapezoidal shape,
An earthquake-proof reinforcing device, characterized in that the adjacent rotating plate is installed so that the vertical direction is reversed.
According to claim 4,
An anti-vibration reinforcing device, characterized in that a vibration isolating member made of rubber or synthetic rubber is further provided between the rotating plates.
According to claim 1,
Insertion protrusions are formed at a lower portion of the upper pressing plate so as to protrude downward at regular intervals,
An accommodation groove into which the insertion protrusion is inserted is formed at an upper portion of the lower pressing plate,
Seismic reinforcement device, characterized in that a separation space is formed between the insertion protrusion and the receiving groove.
According to claim 1,
The upper member includes an upper coupling bracket installed on the upper slab, an upper frame installed below the upper coupling bracket, an upper connecting plate installed to protrude downward from the lower portion of the upper frame, and a front surface of the upper coupling plate. And the upper pressure plate to which the upper part is coupled to the rear surface,
The lower member includes a lower coupling bracket installed on the lower slab, a lower frame installed on top of the lower coupling bracket, a lower connection plate installed to protrude upward from the upper portion of the lower frame, and a front surface of the lower coupling plate. And an earthquake-proof reinforcing device, characterized in that consisting of the lower pressure plate coupled to the lower part to the rear surface.
According to claim 7,
The upper frame and the lower frame are formed in a picture frame shape,
Seismic reinforcement device, characterized in that the 'X'-shaped reinforcing member is installed on the inner side.
According to claim 7,
The upper coupling bracket and the lower coupling bracket include an embed plate coupled to a side surface of an upper slab or a lower slab;
A base plate installed perpendicular to the embed plate;
Seismic reinforcement device, characterized in that consisting of a lip plate installed at regular intervals along the longitudinal direction between the embed plate and the base plate.

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