KR101666356B1 - Seismic Load Damper with Displacement Amplification Lever - Google Patents

Abstract

The present invention relates to a seismic load reducing device capable of reducing seismic energy including: a first vertical frame unit (110); a first upper bent member (120) extended from an upper part of the first vertical frame unit (110) by being bent at a preset angle; a first lower bent member (130) extended from a lower part of the first vertical frame unit (110) by being bent at a preset angle; a first upper hinge unit (140) fixated to each of the upper part of the first upper bent member (120) and an upper horizontal member (420), connected by a pin or a bolt, and rotating when an external force at a predetermined level or higher is applied; and first lower hinge units (150) fixated to each of a lower part of the first lower bent member (130) and a lower horizontal member (430), connected by a pin or a blot to be able to rotate, and rotating when an external force at a predetermined level or higher is applied. A line connecting the center of rotation of the first upper hinge unit (140) and the center of rotation of the first lower hinge units (150) is separated at a predetermined distance from a vertical central axis of the first vertical frame unit (110) without matching up with each other.

Description

{Seismic Load Damper with Displacement Amplification Lever}

The present invention relates to a seismic load damping device having a displacement amplification leverage for a building structure capable of efficiently absorbing earthquake energy in seismic strengthening of a steel structure or a reinforced concrete building structure, It is possible to suppress damage and conduction of the object to be reinforced by reducing the displacement efficiently, and to enhance safety, residence, and usability.

In recent years, in response to earthquakes frequently occurring at home and abroad, interest in seismic retrofitting of existing buildings has been increasing in Korea for several years and some earthquake reinforcement is proceeding according to priorities such as use and importance of existing buildings.

     The seismic retrofit of the existing structure is based on the seismic energy damping damper (friction damper, slit steel material history damper, viscous damper, etc.) equipped with the interlock displacement amplification toggle of the brace shape and the seismic strengthening method using the steel frame or steel brace Are mainly used.

     However, in the case of the vibration damping reinforcement method using various earthquake energy damping dampers provided with the brace-shaped interlayer displacement amplification toggle, the interlayer displacement amplification effect and the earthquake energy damping effect are excellent, but the interlayer displacement amplification toggle and damper are installed in a braced shape, The use of the structure is restricted, the aesthetic appearance is not smooth, the viewpoint and the view are obstructed, and the economic value of the target building is lowered, so that it is not practically applied.

In addition, since the conventional seismic retrofitting method using the steel frame does not have an effect of amplifying the interlayer displacement, when the partial wall is installed on the reinforced building, the response to the seismic load is too late, Partial collapse or destruction of the reinforcement structure may inevitably occur.

     In addition, in the case of the seismic retrofitting method using a steel brace, the brace arranged in a braced shape restricts the usability of the building, obstructs the aesthetics and view of the building, and the response to the earthquake load is fast when the earthquake occurs. However, Partial collapse or destruction of the target structure can not be prevented.

     Therefore, by effectively damping the inter-story displacement acceleration during an earthquake, it is possible to reduce the damage of the object to be reinforced and to prevent the transfer of furniture or office supplies, to improve the safety and habitation usability, and to improve the value of the target building It is urgent to develop a vibration damper reinforcement means.

[Prior Art Literature]

Published Japanese Patent Application No. 10-2014-0069694

Published patent application No. 10-2011-0018858

In order to solve the above-mentioned problems, the object of the present invention is as follows.

First, it is an object of the present invention to provide a seismic load damping device provided with a displacement amplification levers capable of reducing seismic energy with high efficiency through an interlayer displacement amplification mechanism of 2 to 3 times or more at the time of an earthquake.

Second, it amplifies the interstory displacement even in a small shake, effectively damping the earthquake energy to prevent damages to the structure, as well as preventing the conduction of furniture, office supplies, and electronic products, thereby providing a safe and comfortable use environment. Another object of the present invention is to provide an earthquake load damping device provided with a lever.

Another object of the present invention is to provide a seismic load damping device having a displacement amplification leverage capable of minimizing disturbances such as entrance, window, view, and mining while having a high efficiency seismic load damping capability.

Fourthly, another object of the present invention is to provide a highly efficient earthquake load damping means which can reduce the installation amount and can secure economical efficiency due to shortening of air, etc., with little burden on the foundation.

Technical features of the present invention are as follows.

The present invention relates to a seismic load damping device for attenuating earthquake energy, comprising: a first vertical frame part (110); A first upper bending member 120 bent and extended at a predetermined angle at an upper end of the first vertical frame part 110; A first lower bending member 130 bent and extended at a predetermined angle at a lower end of the first vertical frame part 110; A first upper hinge part 140 fixed to the upper end of the first upper bending member 120 and the upper horizontal member 420 and connected to each other by a pin or bolt and rotated when an external force equal to or greater than a predetermined magnitude is applied; And a first lower hinge part 150 which is fixed to each of the lower end part of the first lower bending member 130 and the lower horizontal member 430 and is rotatably connected by a pin or a bolt, And a line connecting the rotation center of the first upper hinge part 140 and the rotation center of the first lower hinge part 150 does not coincide with a vertical central axis of the first vertical frame part 110 And is spaced a certain distance.

The first upper hinge part 140 fixed to the upper horizontal member 420 and the first lower hinge part 150 fixed to the lower horizontal member 430 and the first vertical frame part The first upper bending member 120 rotates about the hinge axis when an inter-layer displacement occurs between the upper horizontal member 420 and the lower horizontal member 430 when the vertical center axes of the first upper bending member 110 and the lower horizontal member 430 are spaced apart from each other. The effect of amplifying the displacement occurs.

FIG. 1 conceptually shows the effect of such displacement amplification. It is understood that the displacement becomes relatively large when a "" "type member in which upper and lower ends are bent is used rather than a straight type (" | " When these two members are arranged side by side and the area where the displacement is amplified is interconnected by a damper, the seismic load can be efficiently absorbed as shown in FIG.

Technical effects of the configuration of the present invention are as follows.

First, seismic energy can be reduced with high efficiency through an interlayer displacement amplification mechanism of 2 ~ 3 times or more when an earthquake occurs.

Second, the interstory drift is amplified even in a small shake, so that the earthquake energy is effectively damped to prevent damages to the structure, and the conduction of furniture, office products, and electronic products does not occur, thereby ensuring a safe and comfortable use environment.

Third, obstacles such as entrance, window, view, and mining can be minimized while possessing high efficiency seismic load damping ability.

Fourthly, there is little burden on the foundation, the installation quantity can be saved, and economical efficiency can be ensured by shortening the air.

Fig. 1 conceptually shows the principle that the interlayer displacement is amplified.
FIG. 2 conceptually illustrates the principle of efficiently absorbing the earthquake load through damper installation.
FIG. 3 shows a case where the first vertical frame part 110 and the vertical member 410 are arranged side by side.
4 (a) to 4 (c) show the case where the first vertical frame part 110 and the vertical member 410 are connected by various types of steel damper 310, (d) is connected to the friction damper 360 Respectively.
5 shows the case where the first vertical frame part 110 and the vertical member 410 are connected by (a) a synthetic rubber damper 320, a stopper 330 and a displacement control key 340, (b) a hydraulic damper And connected to the viscous damper 350, respectively.
6 shows a case where the first vertical frame part 110 and the second vertical frame part 210 are arranged side by side in a symmetrical manner.
7A to 7C show the case where the first vertical frame part 110 and the second vertical frame part 210 are connected by various types of steel dampers 310, ), Respectively.
8 shows a case where the first vertical frame part 110 and the second vertical frame part 210 are connected by (a) the synthetic rubber damper 320, the stopper 330 and the displacement control key 340, (b) And connected to the hydraulic damper or the viscous damper 350, respectively.
9 is a cross-sectional view of a first vertical bend member 110 having a first upper bend member 120 and a first lower bend member 130, a second upper bend member 220 and a second lower bend member 230 (B) a first vertical frame portion 110 having no first lower bending member 130 but only a first upper bending member 120, and (b) (C) the first lower bending member 130 is not present, and (b) the second lower bending member 130 is not provided, The first vertical frame portion 110 having only the first upper bending member 120 and the second vertical frame portion 210 having no second upper bending member 220 and the second upper bending member 220 are used together Respectively.
10 to 12 are various projected drawings to which the present invention is applied.
Fig. 13 exemplarily shows a seismic load damping device which can be derived from the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

The present invention relates to a seismic load damping device for damping earthquake energy, and various embodiments as shown in the accompanying drawings can be presented.

3 is a perspective view of a portable terminal according to an embodiment of the present invention. The portable terminal includes a first vertical frame part 110, a first upper bending member 120, a first upper hinge part 140, a first lower bending member 130, and a first lower hinge part 150 Fig.

The first vertical frame part 110 is arranged vertically and serves as a skeleton that absorbs the interlayer displacement due to the earthquake energy.

The first upper bending member 120 is deflected at a predetermined angle from the upper end of the first vertical frame 110 to extend the displacement when an inter-layer displacement occurs.

The first lower bending member 130 is bent and extended at a predetermined angle at the lower end of the first vertical frame portion 110 so as to amplify a displacement when an interlayer displacement occurs as in the case of the first upper bending member 120.

The first upper hinge part 140 is fixed to the upper end of the first upper bending member 120 and the upper horizontal member 420 and connected to each other by a pin or a bolt.

The first lower hinge unit 150 is fixed to each of the lower end of the first lower bending member 130 and the lower horizontal member 430 and is rotatably connected by a pin or a bolt. .

Accordingly, the line connecting the rotation centers of the first upper hinge part 140 and the first lower hinge part 150 and the vertical central axis of the first vertical frame part 110 are not coincident with each other and are spaced apart by a predetermined distance When an earthquake energy is applied and interlayer displacement occurs between the upper horizontal member 420 and the lower horizontal member 430, the rotation centers of the first upper hinge unit 140 and the first lower hinge unit 150 are connected The vertical displacement of the first vertical frame part 110 can be amplified by about 2 to 5 times as compared with the case where the line perpendicular to the first vertical frame part 110 and the vertical center axis of the first vertical frame part 110 coincide with each other.

4 (a) to 4 (d), a vertical member 410 connecting the upper horizontal member 420 and the lower horizontal member 430 is further provided, and a first vertical frame 110, Shaped steel damper 310 in which both end portions of the vertical member 410 and the vertical member 410 are coupled to each other. The plate damper 310 is provided with a plurality of bolt holes 311 and / 312 are provided, and welding or bolt connection is made.

4 (a) shows a case in which a steel plate in which slit-like cut grooves are continuously arranged is welded, and FIG. 4 (b) shows a case in which a steel plate in which a slit-shaped cutout groove 312 and a bolt hole 311 are continuously arranged FIG. 4 (c) shows a case where a steel plate in which finger-shaped cutout grooves 312 and bolt holes 311 are continuously arranged is coupled using bolts.

When the displacement between the first vertical frame part 110 and the vertical member 410 is amplified due to the occurrence of the interlayer displacement due to the earthquake energy, the steel material damper 310 is deformed and absorbed.

4D shows a state in which friction pads 361 are formed between the steel plates in the process of connecting the first vertical frame part 110 and the vertical member 410 by bolting a steel plate having a plurality of bolt holes 311 in various patterns, In some cases, a high-damping rubber plate may be used instead of the friction pad 361.

4 (d), a plate-shaped friction damper 360 is bolted to both side surfaces of the steel plate welded to the first vertical frame part 110 and the side surfaces of the vertical member 410. In this case, A relatively large hole is formed in the steel plate on the side of the plate 361 on which the plate 361 is inserted so as to allow a space for the bolt passing therethrough so that if there is an interlayer displacement due to seismic energy, The frictional damper 360 and the bolt move together with the frictional damper 360. In this process, the frictional heat of the frictional pad 361 attenuates the seismic energy. A frictional damper 360 is bolted to both side surfaces of the steel plate welded to the side surfaces of the first vertical frame part 110 and the vertical member 410 without directly providing a friction pad 361 In some cases,

5A shows a synthetic rubber damper 320 in which a rubber plate 321 is integrally coupled between two steel plates 322 joined to side surfaces of the first vertical frame part 110 and the vertical member 410 Two stoppers 330 coupled to the first vertical frame part 110 at a predetermined distance and coupled to the vertical member 410 to be positioned in the space between the stoppers 330, 5B illustrate a case where the first and second vertical frame members 110 and 410 have the displacement control key 340 attached thereto. And a hydraulic damper or a viscous damper 350 that is pin-coupled to the mounting bracket is used.

In the case of the synthetic rubber damper 320, the stopper 330 and the displacement control key 340, or the hydraulic damper or the viscous damper 350, as in the case of the plate-like steel damper 310, .

6 shows a case in which a pair is installed and used in a symmetrical structure. In the seismic load damping apparatus shown in FIG. 6, the first vertical frame portion 110, the first upper bent member 120, The first upper hinge unit 140 and the first lower hinge unit 150 and the second vertical frame unit 210, the second upper bend member 220, The second lower hinge part 250 and the second lower hinge part 250 form a pair and act together with the seismic energy. In this way, the first vertical frame part 110 and the second lower hinge part 250, When the two vertical frame parts 210 are arranged in parallel with each other in a symmetrical structure, the displacement amplification factor is increased as compared with FIG.

7A to 7C, a plate-shaped steel damper 310, to which both side ends of the first vertical frame part 110 and the second vertical frame part 210 are coupled, The steel damper 310 is provided with a plurality of bolt holes 311 and a cutout groove 312 formed in various patterns and welded or bolted to each other. (A) to (c) of FIG.

7 (d) shows a case in which the friction damper 360 is used, which is the same as that described with reference to FIG. 4 (d), and a duplicate description will be omitted.

When the displacement between the first vertical frame part 110 and the vertical member 410 is amplified due to the occurrence of the interlayer displacement due to the earthquake energy, the steel damper 310 is deformed and absorbed.

A synthetic rubber damper in which a rubber plate 321 is integrally joined is sandwiched between two steel plates 322 joined to the side portions of the first vertical frame portion 110 and the second vertical frame portion 210, And two stoppers 330 coupled to the first vertical frame part 110 at a predetermined distance and coupled to the second vertical frame part 210 and positioned in a space between the stoppers 330 5B illustrate a case where the displacement control key 340 having the impact buffer rubber 341 is attached to each of the upper and lower surfaces. A hydraulic damper or a viscous damper 350, which is coupled to the protruding mounting brackets, is used.

In the case of the synthetic rubber damper 320, the stopper 330 and the displacement control key 340, or the hydraulic damper or the viscous damper 350, as in the case of the plate-like steel damper 310, .

9 (a), the first vertical frame portion 110, the first upper bending member 120, the first lower bending member 130, the first upper hinge portion 140, The second vertical hinge portion 240, and the second lower hinge portion 250 are shown together with the members including the first lower hinge portion 150,

The second vertical frame part 210 is arranged in parallel to the first vertical frame part 110 and the second upper hinge part 240 is disposed in parallel with the upper end of the second vertical frame part 210 and the upper horizontal part 420 And the second lower hinge part 250 rotates when the external force of a predetermined magnitude or more is applied to the lower horizontal member 430 and the lower horizontal member 430, And is rotatably connected by a pin or a bolt, and rotates when an external force equal to or greater than a predetermined magnitude is applied.

Accordingly, the line connecting the rotation centers of the first upper hinge part 140 and the first lower hinge part 150 and the vertical central axis of the first vertical frame part 110 do not coincide with each other but are spaced by a certain distance, A line connecting the rotation centers of the upper hinge unit 240 and the second lower hinge unit 250 and a vertical center axis of the second vertical frame unit 210 coincide with each other.

9B shows an embodiment in which the members connected to the first vertical frame part 110 and the members connected to the second vertical frame part 210 are installed in a symmetrical structure.

The first upper folding member 120 is bent and extended at a predetermined angle at the upper end of the first vertical frame 110 and the first upper folding member 120 is folded at a predetermined angle, The first lower hinge part 150 is fixed to the upper end of the first upper bending member 120 and the upper horizontal member 420 and is connected to each of the upper and lower hinge parts 420 by a pin or bolt. 1 is fixed to each of the lower end of the vertical frame part 110 and the lower horizontal member 430 and is connected by a pin or a bolt.

The second vertical frame part 210, the second upper bending member 220, the second upper hinge part 240 and the second lower hinge part 250 are formed by the first vertical frame part 110, Member 120, the first upper hinge portion 140, and the first lower hinge portion 150 in a symmetrical structure.

Accordingly, the rotation center of the first lower hinge part 150 is located on the vertical center axis of the first vertical frame part 110, and the rotation center of the first upper hinge part 140 is positioned on the first vertical frame part 110 The rotation center of the second lower hinge part 250 is located on the vertical center axis of the second vertical frame part 210 and the second upper hinge part 240 Is spaced a certain distance from the central axis of the second vertical frame 210 in the vertical direction.

9 (c) is a perspective view of the first vertical frame part 110, the first upper bending member 120, the first upper hinge part 140 and the first lower hinge part 150 (FIG. 9 The second vertical frame portion 210, the second upper hinge portion 240, and the second lower hinge portion 250 are shown

The second vertical frame part 210 is arranged in parallel to the first vertical frame part 110 and the second upper hinge part 240 is disposed in parallel with the upper end of the second vertical frame part 210 and the upper horizontal part 420 And the second lower hinge part 250 is connected to the lower end of the second vertical frame part 210 and the lower horizontal member 430, respectively, And is rotatably connected by a pin or a bolt, and is rotated when an external force equal to or greater than a predetermined size is applied.

Accordingly, the rotation center of the first lower hinge part 150 is located on the vertical center axis of the first vertical frame part 110, and the rotation center of the first upper hinge part 140 is positioned on the first vertical frame part 110 A line connecting the rotation centers of the second upper hinge part 240 and the second lower hinge part 250 and a line connecting the rotation center of the second lower hinge part 250 and the vertical center axis of the second vertical frame part 210 .

The first vertical frame part 110 and the second vertical frame part 210 shown in Figs. 9 (a) to 9 (c) are formed in the same manner as shown in Fig. 7 or 8, A rubber damper 310, a synthetic rubber damper 320, a stopper 330 and a displacement control key 340, and a hydraulic damper or a viscous damper 350 may be installed.

10 to 12 are diagrams for explaining the construction of the steel damper 310 and the synthetic rubber damper 320, which are installed at the openings of the structure including the column and the beam and are amplified according to the principle of the lever when the interstory displacement occurs. The stopper 330, the displacement control key 340, the hydraulic damper and the viscous damper 350 absorb the earthquake energy efficiently.

In addition, the first vertical frame part 110 and the second vertical frame part 210 are not necessarily arranged in the vertical direction but may be arranged in the horizontal direction in consideration of the circumstances around the site or the characteristics of the structure.

FIG. 13 is a view derived from a concrete embodiment of the present invention shown in FIG. 7. In the case where an interstory displacement occurs, the steel damper 310 or the damper 310 is installed at a site where the displacement is amplified by the principle of the lever. A synthetic rubber damper 320 is provided.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, , Addition or deletion of known technology, and simple numerical limitation are also included in the protection scope of the present invention.

110: first vertical frame part
120: first upper bent member
130: first lower bending member
140: first upper hinge portion
150: first lower hinge part
210: a second vertical frame part
220: second upper bent member
230: second lower bending member
240: second upper hinge portion
250: second lower hinge part
310: Steel damper
311: bolt hole 312: incision groove
320: Synthetic rubber damper
321: Rubber plate 322: Steel plate
330: Stopper
340: Displacement control key
341: shock-absorbing rubber
350: Hydraulic damper or viscous damper
360: Friction damper
361: Friction pad
410: vertical member
420: upper horizontal member
430: Lower horizontal member

Claims (6)

A seismic load damping device for damping earthquake energy,
A first vertical frame part 110;
A first upper bending member 120 bent and extended at a predetermined angle at an upper end of the first vertical frame part 110;
A first lower bending member 130 bent and extended at a predetermined angle at a lower end of the first vertical frame part 110;
A first upper hinge part 140 fixed to the upper end of the first upper bending member 120 and the upper horizontal member 420 and connected to each other by a pin or bolt and rotated when an external force equal to or greater than a predetermined magnitude is applied;
A first lower hinge part 150 fixed to each of a lower end part of the first lower bending member 130 and the lower horizontal member 430 and rotatably connected by a pin or a bolt and rotated when an external force equal to or greater than a predetermined magnitude is applied; And
A vertical member 410 connecting the upper horizontal member 420 and the lower horizontal member 430;
, ≪ / RTI >
A line connecting a rotation center of the first upper hinge part 140 and the rotation center of the first lower hinge part 150 and a vertical central axis of the first vertical frame part 110 do not coincide with each other,
The first vertical frame part 110 and the vertical member 410, which are vertically arranged side by side,
A plate-shaped steel damper 310 having both side surfaces joined to the side surfaces of the first vertical frame part 110 and the vertical member 410 and having a plurality of bolt holes 311 and a cut- ;
A synthetic rubber damper 320 in which a rubber plate 321 is integrally coupled between two steel plates 322 joined to the side surfaces of the first vertical frame part 110 and the vertical member 410;
A stopper 330 coupled to the first vertical frame part 110 at a predetermined distance and coupled to the vertical member 410 so as to be positioned in a space between the stoppers 330, A displacement control key 340 attached with a displacement control key 340;
A hydraulic damper or a viscous damper 350 whose both ends are coupled to the mounting bracket protruding from the side surfaces of the first vertical frame part 110 and the vertical member 410; or,
A plate-shaped friction damper 360 bolted to both sides of the steel plate welded to the first vertical frame part 110 and the side surfaces of the second vertical member 410, respectively;
Lt; / RTI >
In the case of the friction damper 360, friction pads 361 are inserted into both side surfaces of the steel plate welded to the side surfaces of the second vertical member 410, and the plate- Wherein a relatively large hole is formed through the hole formed in the bottom plate (360) to allow a clearance for the bolt passing therethrough.
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