KR101651849B1 - Seismic retrofitting technique of framed structure by elasto-plastic steel damper - Google Patents

Seismic retrofitting technique of framed structure by elasto-plastic steel damper Download PDF

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Publication number
KR101651849B1
KR101651849B1 KR1020150161352A KR20150161352A KR101651849B1 KR 101651849 B1 KR101651849 B1 KR 101651849B1 KR 1020150161352 A KR1020150161352 A KR 1020150161352A KR 20150161352 A KR20150161352 A KR 20150161352A KR 101651849 B1 KR101651849 B1 KR 101651849B1
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KR
South Korea
Prior art keywords
frame
steel frame
window
damper
earthquake
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KR1020150161352A
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Korean (ko)
Inventor
장극관
Original Assignee
장극관
주식회사 행림종합 건축사사무소
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Priority to KR1020150161352A priority Critical patent/KR101651849B1/en
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Publication of KR101651849B1 publication Critical patent/KR101651849B1/en

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    • E04B1/985—
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
    • E06B1/02—Base frames, i.e. template frames for openings in walls or the like, provided with means for securing a further rigidly-mounted frame; Special adaptations of frames to be fixed therein
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
    • E06B1/04—Frames for doors, windows, or the like to be fixed in openings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/40—Physical or chemical protection
    • E05Y2800/422—Physical or chemical protection against vibration or noise
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/148—Windows

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

The present invention relates to an earthquake-proof reinforcing body of an opening unit using a slit damper and an earthquake-proof reinforcing method for the same, which are to improve earthquake-proof performance on the opening unit formed in a reinforced concrete frame. Specifically, a window frame is fixed into a steel frame, and the slit damper is connected between the lower part of the steel frame and the window frame by a brace. The steel frame is connected and fixed to a column and a beam forming the opening unit. The steel frame for reinforcing the earthquake-proof performance of the opening unit is efficiently mounted and fixed to the beam and the column forming the opening unit. Therefore, the earthquake-proof reinforcing body has excellent work efficiency and can prevent short column phenomenon on the steel frame as the window frame in the steel frame is separated from both sides of the steel frame. The slit damper connecting the steel frame and the window frame maximizes a damper effect and improves hardness and ductility on the opening unit. The damper unit is also located on a middle wall of the opening unit and can be sealed by outer finishing. So, the damper unit does not obstruct lighting and penetration on a window and can be efficient.

Description

Technical Field [0001] The present invention relates to an anti-seismic reinforcement of an opening portion using a slit damper, and a seismic retrofitting technique of the framed structure by an elasto-plastic steel damper,

The present invention relates to an improvement in seismic performance of an opening formed in a reinforced concrete frame, and more particularly, to a reinforced concrete frame structure in which a steel frame frame is fixed to the inside of an opening of a reinforced concrete frame frame and a slit damper The window frame which is moved due to the deformation of the damper is provided with an anti-seismic reinforcement body which can stably maintain the window system and the seismic reinforcement Reinforcing method.

Generally, various buildings are composed of columns separated vertically between the upper and lower slabs by the slabs and square openings formed by the pillars and beams on the side of the building, and various windows are installed do.

In this case, the window means various windows or doors installed in the opening to block the interior space of the building from the outside, and such a window is essential for circulation of mining or indoor air, And a rectangular opening is provided in the opening.

In addition, the type, size, installation position and number of windows are appropriately designed in consideration of air conditioning, keeping warm in the room and lighting, as well as loads applied to the building, and usually windows are installed on the walls between the columns and the columns The vertical load of the window does not reach the vertical load which the window can not afford, and the vertical load of the building is mainly responsible for the column and the bearing wall, and the window plays a role of connecting the indoor and the outdoor.

On the other hand, when a strong wind is blown into a building or an earthquake occurs, a horizontal load is applied to the building. The horizontal load is a load that shakes the building from side to side, which easily collapses the building. Mostly due to horizontal loading.

In addition, the above-mentioned horizontal load is concentrated on the window portion of the building, so that the window can be easily broken. For example, when the building collapses due to an earthquake, the wall where the window is located is composed of windows and openings of relatively weak structure. First, it collapses and people trapped in the room can not escape.

As a result, seismic strengthening work is carried out for each of the openings in the building which has not been subjected to sufficient earthquake-resistant design as described above, thereby preventing breakage and collapse of the wall due to horizontal load when an earthquake occurs.

The seismic strengthening method for each of the openings is to reinforce the horizontal and vertical members of the structure, thereby improving the deformability. The aramid (carbon) fiber sheet is wrapped around the reinforced concrete column so that it can be easily lifted There is a reinforcing method of reinforcing reinforcement which does not easily collapse due to the enhancement of abilities, and there is a method of strengthening reinforcement that increases the strength by reinforcing the vertical and horizontal members of the structure, There is a reinforcing method of stiffness and ductility which improves the strength and ductility of a structure by providing a damper to reinforce the steel frame and to reinforce the damper through energy absorption.

That is, in the case of the window system having the seismic performance of the Japanese Patent No. 10-1000206, plastic deformation is caused by the horizontal load, and in particular, the proof strength continuously increases during the plastic deformation and the stable hysteresis characteristic is maintained, In addition, the damper of the window system can absorb the earthquake energy to prevent damages to the building structure and improve the seismic performance. Also, when the construction is made like a general window, it can be newly installed or removed from the existing window, A window system having an earthquake-proof performance capable of being installed in a place has been found.

In addition, Japanese Patent Application Laid-Open No. 10-1161785 also discloses a window system having a brace, a connecting plate, and a damper in a window frame, so that the window system can stably maintain a window system when an earthquake occurs, This is what has been put forward.

However, in the above-described seismic retrofitting method, a window-type seismic retrofitting system is used for reinforcing a reinforced concrete frame which is vulnerable to an earthquake and increasing a strength and ductility by installing a damper in the frame. In this case, And the steel frame and damper are installed on the reinforced concrete wall, there is a possibility of shear failure due to the shortening effect because the steel column is shortened, and the deformation amount of the upper damper is not large, I have a problem. Further, since the damper is provided between the upper double steel frame frames, it is inevitable to reduce the openings, which makes it difficult to maintain the existing openings.

In addition, in the case of the integral window system having the seismic performance, there is a problem in planning that the bushing member for supporting the damper closes the window opening, so that the ventilation is not smoothly performed and the user's discomfort due to reduction of the light- It has a very large head.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems described above, and it is an object of the present invention to provide a frame structure for a window frame, in which a window frame is fixedly formed within a frame frame, and a slit damper by a brace is coupled between a lower portion of the frame frame and a lower portion of the window frame, So that it can be reasonably coupled and fixed to the pillars and beams constituting it,

The slit damper is excellent in the damper effect due to the slit damper, and the slit damper positioned at the lower portion of the window frame can prevent the effect of the steel frame frame An earthquake-resistant reinforcement of an opening portion using a slit damper and an earthquake-proof reinforcement method thereof are provided.

In order to accomplish the above object, the present invention provides a steel frame structure comprising: a vertical frame made of a steel frame; A window frame connected to a lower side of an upper horizontal frame of the steel frame; And a slit damper connecting the lower side of the window frame and the lower horizontal frame,

Wherein the window frame is composed of a vertical frame fixed to the lower side of the upper horizontal frame and a horizontal frame connecting the lower ends of the vertical frames and the upper side of the slit damper is connected to the lower end of the vertical frame by a brace, And the lower side is fixed to the upper surface of the lower horizontal frame.

INDUSTRIAL APPLICABILITY According to the present invention, a steel frame for anti-seismic reinforcement of openings can be effectively mounted and fixed on beams and pillars constituting the opening, so that the work efficiency is excellent. In the case of a window frame in a steel frame, The slit damper connecting the frame of the frame and the frame of the window maximizes the damper effect to improve the ductility and the stiffness of the opening, So that it can be concealed through external finishing, so that it is very efficient because it does not interfere with the mining ability and perspective of the window.

1 is an overall perspective view of an anti-seismic reinforcement according to the present invention;
2 is an overall front view of an anti-seismic reinforcement according to the present invention
3 is an enlarged view of a principal part of an anti-seismic reinforcement according to the present invention
Fig. 4 is an installation state diagram of an anti-seismic reinforcement according to the present invention
5 is an enlarged view of an essential portion of an installed state of an earthquake-
6 is a view showing another embodiment of an anti-seismic reinforcement according to the present invention

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor may properly define the concept of the term to describe its invention in the best possible way And should be construed in accordance with the principles and meanings and concepts consistent with the technical idea of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an overall perspective view of an anti-seismic reinforcement according to the present invention, FIG. 2 is a front view of an anti-seismic reinforcement according to the present invention, and FIG. 3 is an enlarged view of a seismic reinforcement according to the present invention.

As shown in the drawing, the seismic retrofitting body for the opening in the building according to the present invention is made up of a steel frame 10, a window frame 20 and a slit damper 30. The steel frame 10 and the window frame 20 Quot; H "shaped < / RTI >

That is, the steel frame 10 is a square frame body that is inserted into the openings formed by the upper and lower pillars and the pillars located on the side walls of the building, And upper and lower horizontal frames 12 and 12 'connecting upper and lower ends of the vertical frames 11 and 11'.

At this time, the vertical frames 11 and 11 'are in close contact with the inner surfaces of the pillars on both sides of the opening, and are in close contact with the opposing surfaces of the upper and lower beams of the horizontal frames 12 and 12'.

As the steel frame 10 is tightly fixed to the inside of the opening portion, the steel frame 10 plays a role of improving the ductility and the rigidity of the opening portion, thereby suppressing the risk of wall collapse due to the sectional loss due to the opening portion.

The window frame 20 is located inside the steel frame 10 and the window frames 20 are separated from the bottom surface of the upper horizontal frame 12 of the steel frame 10 downward And a horizontal frame 22 connecting laterally the lower ends of the vertical frames 21 and 21 '. The horizontal frame 12 and the vertical frame 21 ) 21 'and the horizontal frame 22 will correspond to the area where the windows are actually installed.

The slit damper 30 is disposed below the window frame 20 so that the slit damper 30 is fixed on the lower horizontal frame 12 'of the steel frame 10 and the slit damper 30 The slit damper 30 and the vertical frames 21 and 21 'are connected to the lower frames 21 and 21' of the window frames 20. The slit damper 30 and the vertical frames 21 and 21 ' (40 ').

Here, the horizontal frame 20 and the braces 40 and 40 'of the window frame 20 may be manufactured and applied as a section steel or a square pipe.

The horizontal load applied to the steel frame 10 and the horizontal load acting on the window frame 20 are suppressed by the slip damper 30, The deformation of the window system due to the horizontal load can be stably maintained until just before the break of the window system.

Particularly, the slit damper 30 is made of a metal plate in which diamond-shaped slit holes 31 and 31 'are formed continuously to the left and right, and the slit damper 30 is formed of a metal frame 10 And the ductility enhancement to the steel frame 10 and the window frame 20 from the horizontal load due to the slit holes 31 and 31 'can be improved at the same time. That is, since the slit damper 30, which receives a horizontal load applied from the outside and is deformed by yielding by a horizontal load equal to or larger than an allowable horizontal load, has a stable hysteresis characteristic while the slit damper 30 is deformed, So that it can be stably maintained.

The vertical frames 11 and 11 'of the steel frame 10 and the vertical frames 21 and 21' of the window frame 20 are spaced apart from each other, 10, and even if deformation of the steel frame 10 due to the horizontal load occurs, the coupling load is not directly transmitted to the window frame 20 within a certain amount of deformation, So as to safely protect and maintain the window system.

The upper and lower connecting plates 32 and 33 are formed on the upper and lower sides of the slit damper 30 so that the slit damper 30 can be attached to both sides of the upper connecting plate 32, And the lower connecting plate 33 can more easily fasten and fix the slit damper 30 to the lower horizontal frame 12 'of the steel frame 10 by making the lower end thereof fastened or welded, And the like.

In addition, the angle 50 formed by joining the outwardly curved " C "-shaped angles 50 to the vertical frames 11 and 11 'of the steel frame 10 and the horizontal frames 12 and 12' So that the seismic strengthening body of the present invention can be tightly fixed to the openings.

As shown in FIGS. 4 and 5, the method of reinforcing the openings using the seismic retrofitting structure according to the present invention will now be described with reference to FIGS. 4 and 5. First, The steel frame 10 having the window frames 20 is inserted into the openings created by the metal frame 10.

At this time, the window frame 20 may be connected to the steel frame 10, and if necessary, only the steel frame 10 may be inserted into and fixed to the opening of the window frame 20 in the steel frame 10 And the slit damper 30 may be connected and fixed.

The vertical frames 11 and 11 'of the steel frame 10 and the horizontal frames 12 and 12' of the steel frame 10 are provided with a plurality of angles The angles 50 and 50 'are coupled to the steel frame 10 in a state where the angles 50 and 50' are inserted and fixed to the column 100 and the end face of the beam 101, respectively.

That is, a plurality of anchor bolts 110 are previously fixed to the pillar 100 and the beam 101 constituting the openings at the fastening positions of the angles 50 and 50 ', and the angle 50 50 'are formed with a plurality of through holes 51, 51' through which the anchor bolts 110 can be inserted.

The anchoring bolts 100 protruding through the angles 50 and 50 'are firmly screwed to the anchoring bolts 100 so that the anchors 100 and the anchors 101 The angles 50 and 50 'can be firmly fastened and fixed.

Particularly, the connection between the angles 50 and 50 'and the steel frame 10 is achieved by connecting the anchor bolts 110 inserted into the column 100 and the beam 101 to the angles 50 and 50' And inserted into and protruded from the steel frame 10. Accordingly, the fastening nut 111 is fastened to the anchor bolt 110 protruded through the steel frame 10, thereby firmly fixing the steel frame 10 to the opening.

At this time, a variety of thickness or various numbers of fitting plates 60 are inserted between the angles 50 and 50 'and the steel frame 10, and the fitting plate 60 is made of rubber or metal The fitting plate 60 serves to fill the gap between the angles 50 and 50 'and the steel frame 10 and also serves to fill the gap between the angles 50 and 50' and the steel frame 10 It is possible to suppress the slip of the steel frame 10 from the angles 50 and 50 'in the process of the horizontal load by maximizing the mutual interference resistance.

In addition, a finishing plate 80 made of various materials and thickness is closely attached to the inner surface of the steel frame 10 so that the anchor bolts 110 protrude through the finishing plate 80, The pressing force of the clamping nut 111 is diffused to the entirety of the finishing plate 80 by fixing the clamping nut 111 to the frame 110 so that the pressing force against the steel frame 10 can be further increased Of course, when a horizontal load is applied to the steel frame 10, the deformation due to the horizontal load concentrated on the anchor bolts 110 and the tightening nuts 111 is dispersed to cause local deformation or breakage of the steel frame 10 As well as the role of suppressing.

The anti-seismic reinforcement of the present invention is excellent in workability, and can be applied in the process of constructing a new building. In addition, the existing seats are removed and an excellent seismic reinforcement performance is provided even if the existing window is installed in the corresponding opening.

6, the upper and lower dimensions of the window frame can be variously adjusted by adjusting the vertical height of the window frame 20 with respect to the horizontal frame 22. As shown in FIG. 6, Height regulating holes 23 and 23 'are formed on one side of the vertical frames 21 and 21' of the window frame 20 spaced apart from each other and the vertical frames 21 and 21 'Are formed at both ends of the transverse frame 22 so as to penetrate through the fastening holes 24.

The fastening holes 24 and the vertical frames 21 and 21 'of the transverse frame 22 in the state in which the transverse frame 22 is moved upward and downward with respect to the longitudinal frames 21 and 21' The vertical frames 21 and 21 'can be firmly assembled and fixed through the insertion of the fastening bolts into the height adjusting holes 23 and 23' will be.

Therefore, it is possible to adjust the height of the window through the adjustment of the height of the horizontal frame 22, so that the windows can be installed in various sizes in consideration of the light-attracting property, the heat insulating property and the perspective view, .

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the present invention as defined by the appended claims. Examples should be understood.

10: steel frame 11, 11 ': vertical frame
12, 12 ': Horizontal frame
20: Window frame 21, 21 ': Vertical frame
22: horizontal frame 23, 23 ': height adjustment ball
24: fastening hole
30: Slit damper 31, 31 ': Slit ball
32: upper connection plate 33: lower connection plate
40,40 ': Brace
50, 50 ': Angle 51, 51': Through hole
60:
70, 70 ': reinforcing rib
80: Finishing plate
100: Column 101: Bo
110: anchor bolt 111: fastening nut

Claims (10)

A square frame 10 made of vertical frames 11 and 11 'made of steel and horizontal frames 12 and 12'; A window frame (20) connected to a lower side of an upper horizontal frame (12) of the steel frame (10); And a slit damper 30 connecting the lower side of the window frame 20 and the lower horizontal frame 12 '
The window frame 20 is composed of vertical frames 21 and 21 'fixed to the lower side of the upper horizontal frame 12 and a horizontal frame 22 connecting the lower ends of the vertical frames 21 and 21' The upper side of the slit damper 30 is connected to the lower end of the vertical frames 21 and 21 'by the braces 40 and 40', and the lower side of the slit damper 30 is connected to the lower horizontal frame 12 ') Of the slit damper,
In the vertical frames 21 and 21 'of the window frame 20, upper and lower height adjusting holes 23 and 23' are formed through mutually opposing faces, and both side ends of the horizontal frame 22 The height adjustment holes 23 and 23 'and the corresponding fastening holes 24 are formed to penetrate the vertical frames 21 and 21' (22) is adjusted so that the height of the slit damper (22) can be adjusted.
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KR1020150161352A 2015-11-17 2015-11-17 Seismic retrofitting technique of framed structure by elasto-plastic steel damper KR101651849B1 (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101845078B1 (en) * 2017-06-13 2018-04-03 박상태 Aseismatic Reinforcement Steel Frame with Adjusting Connector and Aseismatic Reinforcement Method using thereof
KR101876511B1 (en) * 2017-11-10 2018-07-09 이규열 Window seismic system using Steel Frame with Slit
KR101908356B1 (en) * 2017-07-26 2018-10-16 박상태 Aseismatic Reinforcement Double Steel Frame and Aseismatic Reinforcement Method using thereof
KR101920417B1 (en) * 2016-11-25 2018-11-20 김성수 Seismic retrofit structure
KR20180135656A (en) * 2017-06-13 2018-12-21 박상태 Aseismatic Reinforcement Steel Frame with Anchor Plate and Aseismatic Reinforcement Method using thereof
KR20180137268A (en) * 2017-06-16 2018-12-27 권순연 Aseismatic Reinforcement Steel Frame with Friction Slip Brace and Aseismatic Reinforcement Method using thereof
KR101914232B1 (en) * 2018-03-23 2018-12-28 주식회사 동서기술 Reinforcement Structure of Building and Installing Method Thereof
KR20180138385A (en) * 2017-06-21 2018-12-31 박상태 Aseismatic Reinforcement Device with Friction Slip Flange, and Aseismatic Reinforcement Method using thereof
KR20180138389A (en) * 2017-06-21 2018-12-31 씨엠알기술연구원(주) Aseismatic Reinforcement Double Steel Frame with Friction Slip Flange, and Aseismatic Reinforcement Method using thereof
KR20180138388A (en) * 2017-06-21 2018-12-31 씨엠알기술연구원(주) Aseismatic Reinforcement Device with Toggle Type Friction Slip Brace, and Aseismatic Reinforcement Method using thereof
KR102193144B1 (en) * 2020-09-29 2020-12-18 송병석 Seismic retrofit structure using supporting device and construction method thereof

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JPH0316634B2 (en) * 1986-03-27 1991-03-06 Nippon Nuclear Fuels
JP3016634B2 (en) 1991-08-09 2000-03-06 日本鋼管株式会社 Damping structure
KR101000206B1 (en) * 2010-06-16 2010-12-10 부산대학교 산학협력단 Windows system having earthquake-proof performance
KR101522821B1 (en) * 2014-10-29 2015-05-26 김기태 Seismic strengthening structure of opening of building and method using Seismic strengthening structure of opening of building

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
JPH0316634B2 (en) * 1986-03-27 1991-03-06 Nippon Nuclear Fuels
JP3016634B2 (en) 1991-08-09 2000-03-06 日本鋼管株式会社 Damping structure
KR101000206B1 (en) * 2010-06-16 2010-12-10 부산대학교 산학협력단 Windows system having earthquake-proof performance
KR101522821B1 (en) * 2014-10-29 2015-05-26 김기태 Seismic strengthening structure of opening of building and method using Seismic strengthening structure of opening of building

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101920417B1 (en) * 2016-11-25 2018-11-20 김성수 Seismic retrofit structure
KR20180135656A (en) * 2017-06-13 2018-12-21 박상태 Aseismatic Reinforcement Steel Frame with Anchor Plate and Aseismatic Reinforcement Method using thereof
KR102004854B1 (en) * 2017-06-13 2019-10-01 박상태 Aseismatic Reinforcement Steel Frame with Anchor Plate and Aseismatic Reinforcement Method using thereof
KR101845078B1 (en) * 2017-06-13 2018-04-03 박상태 Aseismatic Reinforcement Steel Frame with Adjusting Connector and Aseismatic Reinforcement Method using thereof
KR102012883B1 (en) * 2017-06-16 2019-08-21 박상태 Aseismatic Reinforcement Steel Frame with Friction Slip Brace and Aseismatic Reinforcement Method using thereof
KR20180137268A (en) * 2017-06-16 2018-12-27 권순연 Aseismatic Reinforcement Steel Frame with Friction Slip Brace and Aseismatic Reinforcement Method using thereof
KR20180138385A (en) * 2017-06-21 2018-12-31 박상태 Aseismatic Reinforcement Device with Friction Slip Flange, and Aseismatic Reinforcement Method using thereof
KR20180138389A (en) * 2017-06-21 2018-12-31 씨엠알기술연구원(주) Aseismatic Reinforcement Double Steel Frame with Friction Slip Flange, and Aseismatic Reinforcement Method using thereof
KR20180138388A (en) * 2017-06-21 2018-12-31 씨엠알기술연구원(주) Aseismatic Reinforcement Device with Toggle Type Friction Slip Brace, and Aseismatic Reinforcement Method using thereof
KR102000082B1 (en) * 2017-06-21 2019-07-16 씨엠알기술연구원(주) Aseismatic Reinforcement Device with Toggle Type Friction Slip Brace, and Aseismatic Reinforcement Method using thereof
KR102011814B1 (en) * 2017-06-21 2019-08-19 박상태 Aseismatic Reinforcement Device with Friction Slip Flange, and Aseismatic Reinforcement Method using thereof
KR102074251B1 (en) * 2017-06-21 2020-02-06 씨엠알기술연구원(주) Aseismatic Reinforcement Double Steel Frame with Friction Slip Flange, and Aseismatic Reinforcement Method using thereof
KR101908356B1 (en) * 2017-07-26 2018-10-16 박상태 Aseismatic Reinforcement Double Steel Frame and Aseismatic Reinforcement Method using thereof
KR101876511B1 (en) * 2017-11-10 2018-07-09 이규열 Window seismic system using Steel Frame with Slit
KR101914232B1 (en) * 2018-03-23 2018-12-28 주식회사 동서기술 Reinforcement Structure of Building and Installing Method Thereof
KR102193144B1 (en) * 2020-09-29 2020-12-18 송병석 Seismic retrofit structure using supporting device and construction method thereof

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