KR101791248B1

KR101791248B1 - Seismic retrofit structure for reinforcing wall of mansonry

Info

Publication number: KR101791248B1
Application number: KR1020150167239A
Authority: KR
Inventors: 조승호; 노영숙
Original assignee: 서울과학기술대학교 산학협력단
Priority date: 2015-11-27
Filing date: 2015-11-27
Publication date: 2017-10-27
Also published as: KR20170061981A

Abstract

Progressive steel structure in the masonry wall is initiated. A progressive steel structure in a masonry wall is provided in a building wall having a space in which a masonry wall requiring a seismic strengthening is formed. A connecting plate disposed at the center of a side surface in the building wall so that a part of the connecting plate overlaps the steel member; And a friction damper disposed between the section member and the connecting plate.

Description

[0001] SEISMIC RETROFIT STRUCTURE FOR REINFORCING WALL OF MANSONRY [0002]

The present invention relates to an advanced steel structure in a masonry wall, and more particularly, to a structure in which a wall corresponding to a space in which a masonry wall requiring an earthquake-proof reinforcement is removed is preliminarily built from the outside, a steel member and a connection plate are installed around the space, The present invention relates to an advanced steel structure in a masonry wall capable of securing the strength of the building and of shortening the air by arranging the prefabricated reinforced wall in the previously removed mooring wall space.

Typical elementary, middle, and high school public facilities are reinforced concrete structures. These reinforced concrete structures are divided horizontally into slabs based on the framing of columns and beams. And the slab is a cast concrete structure that is formed integrally with the columns and beams when they are constructed.

However, the wall is constructed by using a brick or a concrete block in a built-up structure after the completion of the frame, and usually functions as a wall dividing the space without supporting the load.

Such non-strength masonry walls are very vulnerable to lateral forces acting in the plane or out-of-plane direction, so that in case of an earthquake, the casualty damage in the building is very likely to be caused by conduction or collapse of masonry walls.

School facilities used as evacuation facilities in disasters are required to have seismic retrofitting. In addition, it is necessary to construct steel structures and methods for school facilities that are not equipped with old school facilities and seismic design. Also, There is a problem that air must be shortened by completing reinforcement work.

Korean Patent Publication No. 10-2014-0137598 (published on Dec. 03, 2014).

In order to solve the above problems, the progressive steel structure in the masonry wall according to the embodiment of the present invention is intended to secure the progressive strength in the masonry wall built in an aged building and a building to which the seismic design is not applied and to reduce air in the seismic retrofitting work .

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method and apparatus for controlling the flow of a gas.

In order to accomplish the above object, according to the present invention, there is provided a progressive steel structure in a masonry wall, wherein the progressive steel structure in the masonry wall is provided on a wall of a building having a space in which a masonry wall requiring an anti- An installed steel member; A connecting plate disposed at the center of a side surface in the building wall so that a part of the connecting plate overlaps the steel member; And a friction damper disposed between the section member and the connecting plate.

Preferably, the present invention further comprises a reinforcement plate disposed at a corner of the building wall and having both ends connected to the steel member.

In the present invention, it is preferable that the section member and the connecting plate are fastened by a tongue bolt and a nut, and that a long hole is formed on the side of the section or connecting plate to adjust the fastening position of the tongue bolt.

It is preferable that the reinforced wall constructed to correspond to the space of the mooring tank wall removed in the present invention is moved and arranged in the space after completion of the progressive steel structure in the mooring wall.

In the present invention, it is preferable that the section members are fastened to the anchor bolts installed on the inner side of the building wall.

The present invention provides an improved steel structure in a masonry wall, comprising: a reinforcing wall corresponding to a space in which a masonry wall requiring an earthquake-proof reinforcement is removed; and a steel member and a connecting plate are installed around the space, It is possible to obtain the effect of securing the strength of the building to advance the strength of the building and shortening the air.

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

1 is a front view of an advanced steel structure in a masonry wall according to an embodiment of the present invention.
2 is an enlarged view of A shown in Fig.
FIG. 3 is a state in which the reinforced wall 110 preformed outside is transported and arranged in the space S shown in FIG.

Hereinafter, a progressive steel structure in a masonry wall according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG.

1 is a front view of an advanced steel structure in a masonry wall according to an embodiment of the present invention.

2 is an enlarged view of A shown in Fig.

FIG. 3 is a state in which the reinforced wall 110 preformed outside is transported and arranged in the space S shown in FIG.

As shown in FIGS. 1 to 3, the progressive steel structure 100 in the masonry wall is formed of a steel member (see FIG. 3) provided so as to surround a side wall of the building wall B in which a space S from which a masonry wall, And a connecting plate 130 disposed at the center of a side surface of the building wall body B such that a part of the connecting plate 130 is overlapped with the steel member 120.

According to the present invention, since the progressive steel structure in the masonry wall is installed, the structure of the masonry wall requiring the seismic strengthening in the building is calculated, and then the amount of reinforcement is calculated.

After estimating the amount of reinforcement, the number and location of the masonry walls that require seismic strengthening are selected, and the selected masonry walls are removed.

After the selected masonry wall is removed, anchor bolts A are installed around the inner surface of the building wall B, that is, around the space S, to fix the steel member 120.

The reinforcing wall 110 shown in Fig. 3 is disposed in the masonry wall space S, which has been removed, and is pre-built externally for air saving.

Here, although the reinforced wall 110 is shown with only a concrete block on the drawing, the present invention is not limited thereto, and a masonry wall including a window frame or a door frame may also be used.

After the anchor bolts A are installed, a plurality of steel members 120 are disposed on the inner side of the building wall body B and the anchor bolts A are fastened to the anchor holes (not shown) And is fixedly coupled.

Therefore, the integrity of the progressive steel structure 100 and the building wall body B in the masonry wall can be secured.

Here, it is preferable to apply an adhesive such as an epoxy or the like to the inner side surface of the building wall body B, and then to arrange the steel member 120 to further improve the integrity.

The section steel member 120 is a "T" section steel or "a" section steel and is disposed so as to enclose the side edges in the building wall body B and has through holes 131 for insertion of the tundish bolts 132 at both ends thereof have.

One end of the tongue bolt 132 is inserted into the through hole 131, and then welded and fixed.

Here, it is more preferable to reduce the air by arranging the steel member 120 having been subjected to the welding process of the tongue-and-bolts 132 beforehand on the inner side of the building wall body B.

Are disposed at the center of the inner side of the building wall body (B) such that both end portions of the connecting plate (130) overlap with the steel member (120) after the section steel member (120) is installed.

At both ends of the connecting plate 130, a long hole 121 is formed in the longitudinal direction of the connecting plate 130 so as to face the through hole 131 formed in the forming member 120.

That is, by forming the long hole 121, the fastening position of the tongue bolt 132 can be easily adjusted according to the length of the forming member 120 and the connecting plate 130 when the forming member 120 and the connecting plate 130 are installed .

Here, although the elongated hole 121 is shown as being formed in the connecting plate 130 in the drawing, the elongated hole may be formed in the forming member and the through hole may be formed in the connecting plate.

In addition, the through holes and the elongated holes formed in the forming member and the connecting plate may be formed in at least one shape in sequence along the longitudinal direction of the forming member or the connecting plate.

That is, it is possible to increase the number of tightening bolts of the forming member and the connecting plate, thereby increasing the fastening force of the forming member and the connecting plate.

After the tongue bolt 132 is welded to the section member 120, the tongue bolt 132 is inserted into the slot 121 and the nut 133 is coupled to the other end of the tongue bolt 132, (130) is fixed.

Therefore, since the steel member 120 and the connecting plate 130 having high rigidity are installed in the building wall body B, the strength of the building can be improved.

Further, the friction damper 140 is preferably disposed between the steel member 120 and the connecting plate 130 so as to enhance the anti-seismic effect.

The frictional damper 140 is fixedly disposed between the forming member 120 and the connecting plate 130 in close contact with each other.

In order to secure a higher fixing force of the frictional damper 140, it is preferable to be fixed by the tongue bolt 132 together with the steel member 120 and the connecting plate 130.

In order to further enhance the seismic strengthening effect, it is preferable to provide the reinforcing plate 150 on the steel member 120.

The reinforcing plate 150 is disposed at the edge of the building wall B and both ends are welded to the steel member 120.

Here, the reinforcing plate 150 can be connected to the steel member 120 by estimating its size and thickness according to the amount of earthquake-proofing.

Further, the reinforcing plate 150 may be composed of one or more pieces and sequentially connected to the steel member 120 according to the amount of earthquake-proofing.

After the reinforcing plate 150 is installed, the prefabricated reinforced wall 110 is moved to the previously removed masonry wall space S.

As described above, in the advanced steel structure in the masonry wall of the embodiment of the present invention described above, the reinforcing wall corresponding to the space in which the masonry walls requiring the earthquake-proof reinforcement are removed is preliminarily built from the outside, a steel member and a connection plate are installed around the space , It is possible to obtain the effect of ensuring strength and strength of the building and shortening the air by transporting and arranging the prefabricated reinforced wall in the removed moorhouse wall space.

It is to be understood that the embodiments disclosed herein are not for purposes of limiting the technical idea of the present invention and are not intended to limit the scope of the technical idea of the present invention.

It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims. .

S: Space
A: Anchor bolt
B: Architecture
100: progressive steel structure in masonry wall
110: reinforced wall
120:
130: connecting plate
140: Friction damper
150: reinforcing plate
121: Slots
131: Through hole
132: tongue bolt
133: Nuts

Claims

A progressive steel structure in a masonry wall installed on a wall of a building in which a masonry wall requiring a seismic strengthening is removed,
A steel member installed to surround side edges of the building wall;
A connecting plate disposed at a center of a side surface in the building wall so that a part of the connecting plate overlaps the shape-forming member;
A friction damper disposed between the forming member and the connecting plate; And
And a reinforcing plate disposed at an edge of the building wall and having both ends connected to the steel member,
The above-
And an anchor bolt installed on a side wall of the building,
The forming member and the connecting plate
It is fastened by nut and nut,
And a long hole is formed on the side wall of the forming member or the connecting plate to adjust the fastening position of the fastening bolt.
Progressive steel construction in masonry walls.

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The method according to claim 1,
The reinforcing wall constructed so as to correspond to the space of the removed mooring tank wall
Characterized in that after the progressive steel structure in the masonry wall is completed,
Progressive steel construction in masonry walls.

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