KR101654772B1 - Aseismatic reinforcing apparatus using the reinforced panel zone and elastic force and, method utilizing the same - Google Patents

Aseismatic reinforcing apparatus using the reinforced panel zone and elastic force and, method utilizing the same Download PDF

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Publication number
KR101654772B1
KR101654772B1 KR1020160008124A KR20160008124A KR101654772B1 KR 101654772 B1 KR101654772 B1 KR 101654772B1 KR 1020160008124 A KR1020160008124 A KR 1020160008124A KR 20160008124 A KR20160008124 A KR 20160008124A KR 101654772 B1 KR101654772 B1 KR 101654772B1
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South Korea
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frame
frame assembly
vibration
vertical frame
flanges
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KR1020160008124A
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Korean (ko)
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황윤호
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주식회사 비씨피
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Structural Engineering (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

The present invention relates to a steel structure having both sides and slabs and girders and having a vertical frame coupled to the inner surface of the column and having an inner surface of the slab and the girder, A frame assembly comprising a horizontal frame to be combined; A reinforcing member provided between the both flanges and having an oblique or 'X' shape at a vertical frame and a horizontal frame end edge of the frame assembly; And a fastening member for fastening the frame assembly to the structure by a member fixed at predetermined intervals of the structure, wherein the fastening member is a plate-like dustproof structure interposed between the frame assembly and the structure, And a bolt portion having one end fixed to the outer flange of the frame assembly and the other end inserted and fixed in the structure while passing through the anti-vibration member.
According to another aspect of the present invention, there is provided a seismic retrofitting method using a seismic strengthening apparatus using a panel zone reinforcement and an elastic force, comprising: a first step of joining a reinforcement member to a frame assembly; And a second step of securing the frame assembly coupled with the reinforcing member to the inner surface of the structure while fixing the frame assembly with the securing member.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-seismic reinforcing apparatus using panel zone reinforcement and an elastic force,

[0001] The present invention relates to an apparatus for reinforcing an earthquake-proofing structure and an earthquake-proofing method using the same, and more particularly, to a panel zone in which a column and a beam are joined to each other, The present invention relates to an apparatus for reinforcing a panel zone and an earthquake-proofing method using the same, and more particularly to an earthquake-proofing apparatus using the same.

Generally, when designing buildings such as houses, buildings, buildings, apartments, etc., seismic design (earthquake-resistant design) for safely protecting structures from earthquakes will be done together.

However, in Korea, the requirement for earthquake-resistant design for buildings was imposed in 1988. Most of the building structures built before the earthquake were not designed for earthquake-resistant design. Even after the earthquake- It is expected that the collapse of the building structure will lead to massive casualties and damage to property.

Various seismic retrofitting methods are applied to minimize human damage and material damage from earthquakes. As a typical vibration damping method, there is a method of installing a vibration damping device. As a vibration damping device, a braced damper is installed diagonally to dissipate energy by the firing hysteresis behavior when a cyclic load is applied. However, in the conventional method of installing the vibration damper, it is necessary to construct a structural member having a large rigidity such as a column or a beam for supporting a brace type damper. Therefore, it is difficult to install, It has the disadvantage of covering the view.

To improve the disadvantages of the brace type damper, an anti-seismic reinforcement method as shown in Fig. 1 has been proposed. As shown in the figure, a rectangular frame hinged to be rotatable at an edge is fixed to the opening of the building, and a damper is installed to absorb the vibration energy at the inner edge of the rectangular frame and to perform the plastic behavior. This method is advantageous in that modularization is possible, and there is a sufficient space for installing a window by minimizing disturbance of view of residents. However, since the frame and the damper support all the loads, the load distribution efficiency against the seismic force is inferior. Further, in order to effectively reinforce the member, a member having a large cross sectional performance is required, and the corner damper still obscures the view.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the related art. The purpose is as follows.

First, it is an object of the present invention to improve the seismic performance by increasing the resistance to the lateral force by providing the reinforcing member in the oblique direction or 'X' shape in the panel zone (joining portion of the column and the girder).

Further, the vertical frame further includes a reinforcing member, thereby further improving stability.

Secondly, the structure and the vertical and horizontal frames are coupled to each other by a coupling member having an elastic force, thereby further improving seismic performance.

Especially, since the anti-vibration member having elasticity of various structures is integrally fastened to the bolt part, the structure and the vertical and horizontal frames are combined with each other, thereby enhancing the integrity as well as the resistance against the external impact.

According to an aspect of the present invention, there is provided an anti-seismic steel structure for a structure comprising two pillars, a slab and a girder, comprising: a vertical frame coupled to an inner surface of the column, the member comprising a web connecting both flanges and both flanges; And a horizontal frame coupled to an inner surface of the slab and the girder. A reinforcing member provided between the both flanges and having an oblique or 'X' shape at a vertical frame and a horizontal frame end edge of the frame assembly; And a fastening member for fastening the frame assembly to the structure by a member fixed at predetermined intervals of the structure, wherein the fastening member is a plate-like dustproof structure interposed between the frame assembly and the structure, And a bolt portion having one end fixed to the outer flange of the frame assembly and the other end inserted and fixed in the structure while passing through the anti-vibration member.

According to another aspect of the present invention, there is provided a seismic retrofitting method using a seismic strengthening apparatus using a panel zone reinforcement and an elastic force, comprising: a first step of joining a reinforcement member to a frame assembly; And a second step of securing the frame assembly coupled with the reinforcing member to the inner surface of the structure while fixing the frame assembly with the securing member.

According to the present invention, the following effects are expected.

First, the reinforcing members bracing in a slanting line or 'X' shape are joined to the panel zone corresponding to the connection between the column and the girder, thereby increasing the resistance to the lateral force, thereby improving the seismic performance.

Herein, the vertical frame coupled to the inner surface of the column is further combined with another reinforcing member, thereby further improving seismic performance.

Second, since the structure and the frame are fixed by the fastening member with the anti-vibration member having the elastic force interposed therebetween, the resistance against the external impact is improved and the seismic performance is further improved.

Particularly, since the anti-vibration member is composed of a vibration spring, a spring, and a plate spring together with various elastic members, the anti-vibration member can be suitably applied to various structures and improve structural stability.

Fig. 1 shows an endurance steel structure of a conventional structure.
2A and 2B are cross-sectional views of a seismic strengthening apparatus using a panel zone reinforcement and an elastic force according to the present invention.
3 to 5 are cross-sectional views illustrating various embodiments of fastening members in a seismic reinforcing apparatus using panel zone reinforcement and elastic force according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2A and 2B are sectional views of a seismic retrofitting apparatus (A) using panel zone reinforcement and elastic force according to the present invention.

The present invention is a member made up of a web connecting both flanges and both flanges in a seismic retrofitting apparatus (A) of a structure (10) comprising a pair of columns (C), a slab (S) and a girder (G) A vertical frame 22 coupled to the inner surface of the frame C and a horizontal frame 24 coupled to the inner surface of the slab S and the girder G. [ A reinforcing member 30 formed between the both flanges in a shape of an oblique line or 'X' at the end edge of the vertical frame 22 and the horizontal frame 24 of the frame assembly 20; And a fastening member 40 for fastening the frame assembly 20 to the structure 10 by a member fixed at a predetermined interval of the structure 10, Is fixed to the outer flange of the frame assembly 20 while one end of the plate-shaped vibration proof member 42 passes through the vibration prevention member 42 and is interposed between the frame assembly 20 and the structure 10 And a bolt portion (44) for inserting and fixing the other end inside the structure (10).

The frame assembly 20 is composed of a vertical frame 22 and a horizontal frame 24 and can be integrally formed in a ' The frame assemblies 20 are formed by joining steel plates or using a steel frame member, and are preferably formed of 'H' or 'I' sections in consideration of structural rigidity. That is, the vertical frame 22 and the horizontal frame 24 of the frame assembly 20 can be formed as a web connection between the flanges on both sides, wherein one flange is fixed to the inner surface of the structure 10.

The vertical frame 22 is installed on the inner surface of the column C of the structure 10 in the vertical direction and is provided on the left and right sides with respect to the columns P on both sides.

The horizontal frame 24 is installed horizontally on the girder G and the inner surface of the slab S of the structure 10 and is provided one each on the lower part of the girder G and the upper part of the slab S,

The reinforcing member 30 is a member provided at a portion where the vertical frame 22 and the horizontal frame 24 are in contact with each other. The reinforcing member 30 is made of a steel material having one or a pair of inclined connection between the horizontal frame 24 and the flanges on both sides of the vertical frame 22 And the like. The reinforcement member 30 is bracing in a diagonal or 'X' shape on the cross section of the vertical frame 22 and the horizontal frame 24 in a space called a panel zone (a joining portion of the column and the girder) Thereby improving resistance performance against the action load generated in the zone.

2, both ends of the vertical frame 22 of the frame assembly 20 abut against the upper girder G and the lower slab S, and the horizontal frame 24 is vertical To the inner flange of the frame 22. In this case, a plurality of plate-like stiffeners 50 installed orthogonally between the vertical planes 22 and the horizontal planes 24 in the longitudinal direction may be provided at predetermined intervals, (Lateral force or the like) acting on the frame 24.

2A and 2B, the reinforcing member 30 may be formed of a vertical frame 22 and a horizontal frame (not shown). The reinforcing member 30 may be formed by using a space defined by the stiffener 50, 24 and between the adjacent stiffener 50 and the stiffener 50 spaced apart from the adjacent stiffener 50 from the end of the vertical frame 22. [ Wherein the stiffener 50 closest to the end of the vertical frame 22 is located on the same line as the lower flange of the horizontal frame 24 and the other stiffener 50 is spaced equally from the end and the closest stiffener 50, It is structurally possible to seek stability.

A reinforcing member 30 may be additionally provided between the nearest stiffener 50 and the adjacent stiffener 50. This is equivalent to the inclination of the reinforcing member 30 supported at the end of the horizontal frame 24 And is installed on an extension line to exhibit an integrated structure and exhibits resistance to an external force effectively. Thus, in one panel zone, two triangular shapes or three identical 'X' shapes having different sizes may be exhibited by the three reinforcing members 30, thereby improving the performance of the earthquake.

The fastening member 40 is composed of the anti-vibration member 42 and the bolt portion 44, and functions to reduce vibration generated between the frame assembly 20 and the structure 10.

The anti-vibration member 42 is a member interposed between the frame assembly 20 and the structure 10, and is made of a material having an elastic force to reduce vibration. That is, a rubber or a spring, and may be formed in a hexahedron shape having a predetermined thickness as shown in FIGS. 2A and 2B.

The bolt portion 44 is a member in which one end is fixed to one flange of the frame assembly 20 by using a head and the other end is fixed with a certain depth of the structure 10 inserted. The bolts 44 penetrate through the anti-vibration member 42 and are integrally fixed to each other, so that the stress transmitted to the structure 10 is reduced through the anti-vibration member 42 .

In addition, the structure 10 in which the fastening member 40 is inserted may further include a groove 12 having a predetermined depth from the surface. It is preferable that the groove 12 be formed at a depth from one side of the anti-vibration member 42 to the inside of the structure 10. This is added to the interface between the frame assembly 20 and the structure 10 and the inner surface of the groove 12 (E) that are filled with the adhesive (E), the impact-relieving action can be seen more effectively. That is, when the anti-vibration member 42 absorbs the vibration, the action of the adhesive E filled with the wider and deeper by the groove 12 of the structure 10 is integrated, thereby more effectively performing the function of attenuating the vibration energy .

As described above, since the adhesive E is filled in the interface between the frame assembly 20 and the structure 10 and the inner surface of the groove 12, a slightly spaced space is formed between the structure 10 and the frame assembly 20 At this time, epoxy or the like may be used as the adhesive (E), thereby enhancing the adhesive strength and also having a waterproof function.

3 to 5 are sectional views showing various embodiments of the fastening member 40 in the seismic retrofitting apparatus A using the panel zone reinforcement and the elastic force according to the present invention.

3 to 5 show various embodiments of the anti-vibration member 42 of the fastening member 40, which may be applied according to the structural situation.

3, the anti-vibration member 42 of the fastening member 40 includes an anti-vibration pad portion 42a provided between the frame assembly 20 and the structure 10, And a first resilient portion 42b formed of a ring spring.

That is, the anti-vibration member 42 is made of an elastic material and has a hexahedron-shaped anti-vibration pad portion 42a and a first elastic portion 42b inserted into the inner edge of the anti-vibration pad portion 42a. At this time, the first elastic portion 42b is vertically inserted into a space spaced by a predetermined distance from both ends of the vibration pad portion 42a. The first elastic portion 42b may be installed on the upper or lower portion of the vibration pad portion 42a, All can be installed. The outer end of the first elastic portion 42b may be provided so as to be in contact with the outer surface of the structure 10 or the outer surface of the frame assembly 20, And more efficiently. In addition, the first elastic portion 42b provided under the dustproof pad portion 42a may be further coupled to the first casing 42b 'for blocking the lower surface as shown in FIG. When the first elastic part 42b of the first housing 42b 'elastically acts inside the vibration-proof pad part 42a, the first housing 42b' does not directly contact the adhesive E such as epoxy, It does.

4, the vibration-proofing member 42 of the coupling member 40 includes a vibration-proof pad portion 42a provided between the frame assembly 20 and the structure 10, A second elastic portion 42c formed of a leaf spring and coupled to any one of upper, lower, upper and lower portions, and a second casing 42c 'for blocking the lower surface of the vibration pad portion 42a and both side surfaces thereof .

Compared with the embodiment shown in FIG. 3 of the present invention, the second elastic portion 42c is applied instead of the first elastic portion 42b. The configuration of the vibration pad portion 42a is the same as that of the first embodiment shown in FIG. .

The second elastic portion 42c is a leaf spring installed so as to be in contact with the upper surface or the lower surface of the dustproof pad portion 42a interposed between the frame assembly 20 and the structure 10, As a result, the elasticity is exerted to reduce the vibration. As described above, the second elastic portion 42c is provided so as to contact not only the upper surface but also the lower surface of the vibration-proof pad portion 42a, so that a triple buffer effect can be obtained.

At this time, in order to prevent the second elastic part 42c provided on the upper and lower surfaces of the dustproof pad part 42a from directly coming into contact with the adhesive agent E, the lower surface and both sides of the dustproof pad part 42a 2 casing 42c 'may be provided. The second casing 42c 'prevents the elastic action of the second elastic portion 42c from being suppressed by contacting the second elastic portion 42c with the adhesive as described above with reference to the first casing 42b'.

5, a third elastic part 42d of a leaf spring material installed between the frame assembly 20 and the structure 10 instead of the anti-vibration member 42 of the fastening member 40, And a third casing 42d'forming a side surface and a lower surface of the third elastic portion 42d so as to surround the third elastic portion 42d. The third elastic portion 42d is installed on both sides of the bolt portion 44, .

The third elastic portion 42d refers to a member of a leaf spring material provided on both sides of the bolt portion 44 so as to abut the upper surface of the outer flange of the frame assembly 20. A plurality of the third elastic portions 42d may be provided at predetermined intervals between the bolt portion 44 and the bolt portion 44 of the fastening member 40 and the size may be determined according to the structural requirements.

In addition, the third casing 42d 'serves to prevent contact between the third elastic portion 42d and the adhesive so that the vibration of the third elastic portion 42d can be maintained while maintaining the elastic force.

On the other hand, the present invention proposes an earthquake-proofing method of the structure 10 using the above-described earthquake-proofing apparatus A, though it is not shown in the drawings.

In the seismic retrofitting method of the present invention, first, a reinforcing member (30) is joined to a frame assembly (20); And fixing the frame assembly 20 with the reinforcing member 30 to the inner surface of the structure 10 while fixing the frame assembly 20 with the fastening member 40. FIG.

Further, in the first step, a process of joining the stiffener 50 according to the second aspect and the added reinforcing member 30 is added to the frame assembly 20, and between the first step and the second step, The adhesive agent E according to the fourth aspect is applied to the interface between the frame assembly 20 and the structure 10 and the interface between the frame assembly 20 and the structure 10, And a third step of filling the inner surface of the trench 12 with the first and second trenches.

In addition, an earthquake-proof reinforcement method using the above-described construction method using the fastening member 40 according to the embodiment of FIGS. 3 to 5 described above may be performed.

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, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

It is therefore intended that the appended claims cover such modifications and variations as fall within the true scope of the invention.

C: Column S: Slab
G: girder E: adhesive
A: Seismic strengthening device
10: Structure 12: Groove
20: frame assembly 22: vertical frame
24: horizontal frame 30: reinforcing member
40: fastening member 42: anti-vibration member
42a: dustproof pad part 42b: first elastic part
42b ': first casing 42c: second elastic portion
42c ': second casing 42d: third elastic part
42d ': third casing 44: bolt portion
50: Stiffener

Claims (10)

In the seismic retrofitting apparatus A of the structure 10 composed of the pillars C on both sides, the slab S and the girder G,
A vertical frame 22 coupled to the inner surface of the column C and a horizontal frame 24 coupled to an inner surface of the slab S and the girder G. The vertical frame 22 is a member composed of both flanges and a web connecting the two flanges, (20);
A reinforcing member 30 formed between the both flanges in a shape of an oblique line or 'X' at the end edge of the vertical frame 22 and the horizontal frame 24 of the frame assembly 20; And
A fastening member 40 for fastening and coupling the frame assembly 20 to the structure 10 with a member fixed at predetermined intervals of the structure 10;
, ≪ / RTI >
The structure 10 in which the fastening member 40 is inserted is further provided with a groove 12 having a predetermined depth from the surface and the interface between the frame assembly 20 and the structure 10 and the inner surface of the groove 12 The adhesive (E) is further charged,
The coupling member 40 includes a plate-shaped vibration-proof member 42 interposed between the frame assembly 20 and the structure 10, and a frame- And a bolt portion (44) fixed to the outer flange and having the other end inserted and fixed in the structure (10)
The vibration proof member 42 of the coupling member 40 includes a vibration proof pad portion 42a provided between the frame assembly 20 and the structure 10 and a ring insertion portion 42b inserted into both sides of the vibration proof pad portion 42a, And a first elastic part 42b made of a spring material,
The first elastic portion 42b of the coupling member 40 may be provided on the upper or lower portion of the dustproof pad portion 42a or may be provided on both the upper and lower sides of the vibrationproof pad portion 42a, And the first casing (42b ') for blocking the lower surface of the elastic portion (42b) is further coupled to the first casing (42b'). In the seismic retrofitting apparatus A of the structure 10 composed of the pillars C on both sides, the slab S and the girder G,
A vertical frame 22 coupled to the inner surface of the column C and a horizontal frame 24 coupled to an inner surface of the slab S and the girder G. The vertical frame 22 is a member composed of both flanges and a web connecting the two flanges, (20);
A reinforcing member 30 formed between the both flanges in a shape of an oblique line or 'X' at the end edge of the vertical frame 22 and the horizontal frame 24 of the frame assembly 20; And
A fastening member 40 for fastening and coupling the frame assembly 20 to the structure 10 with a member fixed at predetermined intervals of the structure 10;
, ≪ / RTI >
The structure 10 in which the fastening member 40 is inserted is further provided with a groove 12 having a predetermined depth from the surface and the interface between the frame assembly 20 and the structure 10 and the inner surface of the groove 12 The adhesive (E) is further charged,
The coupling member 40 includes a plate-shaped vibration-proof member 42 interposed between the frame assembly 20 and the structure 10, and a frame- And a bolt portion (44) fixed to the outer flange and having the other end inserted and fixed in the structure (10)
The vibration proof member 42 of the coupling member 40 is composed of the vibration proof pad portion 42a provided between the frame assembly 20 and the structure 10 and the upper, And a second casing (42 ') for blocking the lower surface and both side surfaces of the vibration-proof pad portion (42a). And seismic strengthening device using elastic force. 3. The method according to claim 1 or 2,
The vertical frame 22 of the frame assembly 20 is installed so that its both ends are in contact with the upper girder G and the lower slab S and the horizontal frame 24 is fixed to the inner flange 22 of the vertical frame 22, And a plurality of plate-shaped stiffeners (50) installed orthogonally between both side flanges in the longitudinal direction of the vertical frame (22) and the horizontal frame (24) are provided at predetermined intervals,
The reinforcing member 30 is installed while being supported by the adjacent stiffener 50 from the ends of the vertical frame 22 and the horizontal frame 24 and at the same time spaced apart from the adjacent stiffener 50 from the end of the vertical frame 22 And the stiffener (50) is further provided between the stiffeners (50). In the seismic retrofitting method using the panel zone reinforcement according to claim 1 or 2 and the seismic retrofitting apparatus (A) using the elastic force,
A first step of coupling the reinforcing member (30) to the frame assembly (20); And
And a second step of fixing the frame assembly 20 having the reinforcing member 30 to the inner surface of the structure 10 while fixing the frame assembly 20 with the fastening member 40. [ Seismic Retrofit Method Using Seismic Retrofit Using. delete delete delete delete delete delete
KR1020160008124A 2016-01-22 2016-01-22 Aseismatic reinforcing apparatus using the reinforced panel zone and elastic force and, method utilizing the same KR101654772B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101939606B1 (en) * 2018-09-19 2019-01-18 정원기계산업(주) Seismic retrofit apparatus for building

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090041580A (en) * 2007-10-24 2009-04-29 김인배 Insulation and floor impact sound reduction device of apartment house
KR101185974B1 (en) * 2012-06-29 2012-09-26 비코비엔주식회사 Reinforcing apparatus for panel-zone of beam and column member using bracing member and structure reinforcing method therewith

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090041580A (en) * 2007-10-24 2009-04-29 김인배 Insulation and floor impact sound reduction device of apartment house
KR101185974B1 (en) * 2012-06-29 2012-09-26 비코비엔주식회사 Reinforcing apparatus for panel-zone of beam and column member using bracing member and structure reinforcing method therewith

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101939606B1 (en) * 2018-09-19 2019-01-18 정원기계산업(주) Seismic retrofit apparatus for building

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