KR101228754B1 - Method for retrofitting seismic capability of mansory partition wall - Google Patents

Abstract

The present invention provides a method for effectively reinforcing masonry partition walls that are very susceptible to lateral forces acting in-plane or out-of-plane.
A method for reinforcing a masonry partition wall according to a preferred embodiment of the present invention includes: (a) a base surface treatment step of peeling off the paint applied to the surface of the masonry partition wall to be reinforced and roughening the surface; (b) Forcibly press-fit the vertical slab steel bar divided into the lower slab surrounding the reinforcement partition wall to be reinforced and the vertically shaped steel bar divided into the hole formed in the upper beam or slab smaller than the diameter of the vertically released steel bar in the vertical direction. A vertical release steel bar installation process of connecting the divided portions of the vertical release steel bars to the fastening holders; (c) Horizontally reinforcing steel bars, which are divided into holes formed smaller than the diameter of the horizontal release steel bars, on both sides of the masonry partition wall to be reinforced, in a horizontal direction forcibly press-fitted, respectively, and then divided into horizontal release steel bars. A horizontal release steel bar installation process of connecting portions to the fastening holders; (d) a fixed clip joining process of engaging the vertical release steel bar and the horizontal release steel bar by coupling a pair of fixed clips to selected intersections of the vertical and horizontal release steel bars; (e) a fix penetration process for assembling a fix to a pair of fixed clips to penetrate a partition wall to fix a pair of fixed clips; And (f) pouring non-contraction mortar or concrete so that the vertical and horizontal release steel bars are completely embedded and synthesized integrally with the partition walls.

Description

Method for retrofitting seismic capability of mansory partition wall}

The present invention relates to a seismic reinforcement method of a masonry partition wall, and more particularly, to the masonry partition wall to reinforce the masonry partition wall to function as a vertical diaphragm that transmits the earthquake load to the pillar while preventing the earthquake from falling. It is about seismic reinforcement method of.

Reinforced concrete structure has the structure of dividing the space horizontally through the slab and vertically dividing the plane vertically by the wall based on the ramen frame that is in contact with the column and beam. The slab is a cast-in-place concrete structure that is formed integrally with the columns and beams. However, the wall is composed of masonry using bricks or concrete blocks in the interior work after the completion of the frame, and it usually functions as a partition wall that separates the room from the room without supporting the load.

When laying, there is a slight gap between the wall and the column and between the beam and the gap is filled with mortar. Therefore, the partition wall is not synthesized integrally with the frame, so it is very vulnerable to lateral forces acting in or out of plane. Therefore, in the event of an earthquake, it is very likely that casualties in buildings will result from the fall or collapse of the masonry partition wall.

As a background art of the present invention, in the bidirectional and one-way masonry seismic reinforcing method according to Korean Patent Registration No. 10-1027393, a plurality of eyebolt through-holes and wire rope through-holes are formed on the upper surface of the slab of the building located on both sides of the bottom of the masonry wall. Install a plurality of lower fixing steel in the masonry wall extending direction (lateral direction) so as to protrude upward, and the upper fixing steel corresponding to the position of the lower fixing steel installed in the slab is formed on the slab or the side of the masonry wall extending direction of the masonry wall ( Installed in such a way as to be spaced apart from each other in the lateral direction) and through the eye bolt through-holes of the upper fixing steel and the lower fixing steel respectively installed in the slab and the beam, and the eye bolts to each other using a wire rope. Lateral confinement of the masonry wall by connecting the upper fixing steel and the lower fixing steel The wire is alternately up and down the rope through hole presenting a two-way jojeokbyeok seismic strengthening method comprising the step of longitudinally constrain the wire rope as jojeokbyeok extension direction.

However, the background art has a problem in that the reinforcement of the masonry wall is difficult and the structure for installing the wire rope is complicated.

The present invention has been made to solve the structural problems of the masonry partition wall has the following object.

Korea Patent Registration No. 10-1079318

It is an object of the present invention to provide a method for effectively reinforcing masonry partition walls that are very susceptible to lateral forces acting in-plane or out-of-plane.

A method for reinforcing a masonry partition wall according to a preferred embodiment of the present invention includes: (a) a base surface treatment step of peeling off the paint applied to the surface of the masonry partition wall to be reinforced and roughening the surface; (b) Forcibly press-fit the vertical slab steel bar divided into the lower slab surrounding the reinforcement partition wall to be reinforced and the vertically shaped steel bar divided into the hole formed in the upper beam or slab smaller than the diameter of the vertically released steel bar in the vertical direction. A vertical release steel bar installation process of connecting the divided portions of the vertical release steel bars to the fastening holders; (c) Horizontally reinforcing steel bars, which are divided into holes formed smaller than the diameter of the horizontal release steel bars, on both sides of the masonry partition wall to be reinforced, in a horizontal direction. A horizontal release steel bar installation process of connecting portions to the fastening holders; (d) a fixed clip joining process of engaging the vertical release steel bar and the horizontal release steel bar by coupling a pair of fixed clips to selected intersections of the vertical and horizontal release steel bars; (e) a fix penetration process for assembling a fix to a pair of fixed clips to penetrate a partition wall to fix a pair of fixed clips; And (f) pouring non-contraction mortar or concrete so that the vertical and horizontal release steel bars are completely embedded and synthesized integrally with the partition walls.

In addition, between the vertical release steel bar installation process and the horizontal release steel bar installation process, a plurality of inclined release steel bars are installed which are inclined at an angle with respect to the slab or beam and cross the intersection where the vertical release steel bar and the horizontal release steel bar meet. It characterized in that the inclination release steel bar installation process is further included.

In addition, between the vertical release steel bar installation process and the horizontal release steel bar installation process, a plurality of inclined release steel bars having wings that are bent on both sides in a 'V' shape are selected at intersections where the vertical and horizontal release steel bars intersect. It characterized in that the inclination release steel bar installation process that is installed to pass further included.

In addition, between the vertical release steel bar installation process and the horizontal release steel bar installation process, a plurality of inclined release steel bars having a 'V' shape are installed so as to pass through the intersection of the vertical and horizontal release steel bars. Steel bar installation process is characterized in that it is further included.

In addition, the fastening holder has a wing receiving portion that can accommodate a plurality of wings, the wing receiving portion has a pitch that is consistent with the pitch of the wings and has a shape twisted spirally in the longitudinal direction, the vertical, horizontal and inclined release steel bar has a cross section It has a triangular or hexagonal shape and has a pitch that is consistent with the pitch of the wing receiving portion and has a shape spirally helically in the longitudinal direction, and the fix has a plurality of wings spirally wound with a constant pitch around the mandrel and mandrel, or vertical It is characterized by being configured by cutting a certain length of any one of the horizontal and inclined release steel bar.

In addition, the helical blade of the fix is composed of two or three, the wing receiving portion of the fastening holder is composed of six, characterized in that the seismic reinforcement is made.

In addition, the pair of fixed clips are respectively, a circular coupling plate; A pair of release steel bar binding grooves formed on one surface of a circular coupling plate and intersecting each other and forming a semicircle; A pair of coupling shafts which protrude perpendicularly to the coupling plate to avoid a pair of release steel bar binding grooves, and a plurality of separation prevention jaws are formed at a predetermined interval on the outer circumferential surface; A fastening holder inserted into the pair of coupling shafts; And a pair of coupling shaft assembly holes penetrated through the coupling plate to avoid a pair of release steel bar binding grooves.

In addition, the pair of fixed clips is characterized in that the spacer is further protruded to a certain height on the other surface of the coupling plate in order to have a certain interval with the masonry partition wall.

According to the present invention, using a release steel bar having a spiral projection in the longitudinal direction as a reinforcing material and by using a pair of fixed clips to combine the intersection of the vertical and horizontal release steel bar firmly fixed to the partition wall, while having excellent strength It is possible to reinforce the masonry partition wall, which is very susceptible to lateral forces, by forming a type of reinforcing reinforcement wall that is integrated into the reinforcement partition wall by pouring non-contraction mortar without fear of cracking.

In addition, the reinforcement reinforcement wall consisting of a deformed steel bar arranged in the form of a lattice and a non-shrink mortar can function as a vertical diaphragm that transmits earthquake loads to the column, so that the masonry partition wall, which is vulnerable to lateral force, acts as a seismic wall during a weak earthquake. It can be done.

In particular, the inclined reinforcing steel bar is installed in a diagonal direction can be reinforced reinforcement to further strengthen the earthquake-resistant wall, it is easier to bond the deformed steel bar arranged in a grid form using a pair of fixed clips. Can be.

The following drawings, which are attached in the present specification, illustrate exemplary embodiments of the present invention, and together with the detailed description of the present invention, serve to further understand the technical spirit of the present invention. It should not be construed as limited.
1A is a front view showing a state in which vertical and horizontal release steel bars are installed on one side of a masonry partition wall according to the present invention;
1B is a side cross-sectional view of FIG. 1A,
2A to 2C are detailed views of parts A, B, and C of FIG. 1A, respectively.
FIG. 2D is a detailed view illustrating various embodiments of part D of FIG. 1B;
3 is a process diagram for reinforcing masonry partition walls according to the present invention,
Figure 4a is a perspective view showing a release steel bar,
Figure 4b is a cross-sectional view of Figure 4a showing various embodiments of the release steel bar,
Figure 5a is a front view showing a cut surface fastening portion of the release steel bar,
5B is a cross-sectional view of FIG. 5A,
6 is a perspective view showing a fixing clip,
Figure 7 is an example of the intersection of the vertical and horizontal release steel bar through a pair of fixing clips,
8A is a front view of the fix,
8B is a cross-sectional view of FIG. 8A,
9A to 9C are various installation state diagrams according to the structural change of the inclined release steel bar.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

The present invention provides a plurality of pairs of fixed clips (40, 30A, 30B) or inclined release steel bars (31, 31A, 31B) on one or both sides of the masonry partition wall (1). Using a grid and fixed in a diagonal form, and the non-contraction mortar (50) is poured into a composite to form a kind of reinforcing reinforcing wall to reinforce the partition wall (1).

Hereinafter, a method of reinforcing masonry partition walls of a school building and various members used in the method will be described in detail.

1A is a front view showing a state in which vertical and horizontal release steel bars are installed on one side of a masonry partition wall according to the present invention, FIG. 1B is a side cross-sectional view of FIG. 1A, and FIGS. 2A to 2C are A and B of FIG. 1A, respectively. FIG. 2D is a detailed view illustrating various embodiments of the D portion of FIG. 1B, and FIG. 3 is a process diagram of reinforcing masonry partition walls according to the present invention.

< Surface  Treatment Process>

First, it has the base surface processing process S10 which peels off the paint apply | coated to the surface of the reinforcement target masonry partition wall 1, and makes a surface rough.

Base surface treatment step (S10) is a work for increasing the adhesion of the non-contraction mortar and the reinforcement target partition wall (1). In general, the partition wall (1) of the school building is a brick or concrete block, and then the surface is flattened with cement mortar and then painted to reduce the adhesion between the non-shrink mortar and the partition wall (1) that is poured during reinforcement. Therefore, as a process to increase adhesion, the paint is peeled off and ground or sandblasted to roughen the cement mortar finish. Various methods are known to the base surface treatment method, and the present invention can treat the base surface of the partition wall 1 by using a base surface treatment method appropriately selected from the known methods in consideration of construction and economical efficiency.

<Vertical Deformation Steel bar install  Process>

Next, a vertical release steel bar installation process 20 is carried out.

This is a release steel bar slightly smaller than the outer diameter of the release steel bar in the upper slab if there is not enough space in the lower slab 2 and the upper beam 4 or the upper beam 4 surrounding the masonry partition wall to be reinforced. After the penetration hole is drilled to a certain depth, the vertical mold release steel bar 30A is inserted into the process.

At this time, the spacing of the release steel bar penetration hole is calculated by calculating the cross-sectional area of the vertical and horizontal release steel bars 30A and 30B necessary to prevent the masonry partition wall 1 from falling or collapsing due to the lateral force. It can be determined in consideration of the size and workability of the.

The vertically released steel bar 30A is installed to have a divided structure in the middle in order to penetrate and fix the slab 2 and the beam 4 in the vertical direction as shown in FIGS. 2A and 2B. Therefore, two vertical release steel bars 30A are fastened through the fastening holder 20 as shown in FIGS. 5 and 6.

The vertical release steel bar 30A has the same material and structure as the horizontal release steel bar 30B and the inclined release steel bars 31, 31A and 31B which will be described later. These deformed steel bars may be made of a metal material such as stainless steel, aluminum, brass, etc. which are not corroded to moisture or the like, or may be hot-dipped galvanized metal material to prevent corrosion. Looking at the structure of the vertically released steel bar (30A), as shown in Figures 4a and 4b has a cross-sectional shape that forms a triangle or hexagon and has a constant pitch in the longitudinal direction. The pitch of the release steel bar matches the pitch of the fastening holder 20.

Fastening holder 20 can be fastened in the longitudinal direction while turning in a spiral direction with each other because the pitch of the release steel bar is the same. Referring to FIG. 5B, since the fastening holder 20 in which the six wing accommodation parts 21 are formed coincides with the pitch of the release steel bar, the release steel bar is longitudinally connected to the fastening holder 20. In the case of six wing receiving portions 21 of the fastening holder 20, as shown in FIG. 4B, the fastening holder 20 may be fastened with a release steel bar having a triangular cross section, and may be fastened with a release steel bar having a hexagonal cross section. Geometrically, the distance from the center of the release steel bar to the vertex portion is longer than the length from the center of the fastening holder 20 to the recess 211, so that the vertex portion of the cross-sectional shape of the release steel bar is formed on the recess 211. By interfering, the release steel bar may be fixed in the fastening holder 20. In addition, since both the release steel bar and the fastening holder 20 are formed in a spirally twisted shape in the longitudinal direction, when both members are relatively rotated as if they are screwed together, the fastening steel bar is fastened to the fastening holder 20 once. When pulling in the longitudinal direction, the release steel bar will not fall out.

Here, the fastening holder 20 for fastening the divided vertical release steel bar 30A is preferably installed to be at a position shifted from each other in the adjacent vertical lines.

<Horizontal Deformation Steel bar install  Process>

Then, the horizontal release steel bar installation step (S30).

This is a process of horizontally press-fitting the horizontal mold release steel bar 30B to the pillars 3 and 3 on both sides. That is, after the drilled through the release steel bar penetration hole slightly smaller than the outer diameter of the release steel bar on both poles (3, 3) to a predetermined depth, the horizontal release steel bar (30B) is inserted into the installation as shown in Figure 2c. In this case, even in the case of the horizontal release steel bar 30B, the middle is divided, and the divided portion is installed by fastening through the fastening holder 20 of FIG. 5. Here, the fastening holder 20 for fastening the divided horizontal release steel bar 30B is preferably installed to be at a position shifted from each other in the adjacent horizontal line.

<Fixing clip joining process>

Then, the fixing clip joining process S50 is performed.

Fixing clip joining process (S50) is the intersection of the vertical release steel bar (30A) and horizontal release steel bar (30B) ("D" or "E" of Figure 1a) using a plurality of pairs of fixed clips (40A, 40B). Part).

As shown in FIGS. 6 and 7, the pair of fixing clips 40A and 40B have the same structure having the same shape and face each other so as to freely engage with each other. Therefore, when looking at the structure of any one of the fixed clip (40A), a pair of release forms a semi-circular and intersecting and formed in a cross-shaped cross-shaped coupling plate 41 and one surface of the circular coupling plate 41 The steel bar binding grooves 42 and 42 and the pair of release steel bar binding grooves 42 and 42 protrude perpendicularly to the coupling plate 41, and the separation prevention jaw 43a is spaced at a predetermined interval on the outer circumferential surface thereof. A pair of coupling shafts 43 and 43 formed respectively, a fastening holder 20 respectively inserted into the pair of coupling shafts 43 and 43, and a pair of release steel bar binding grooves 42 and 42, respectively. And a pair of coupling shaft assembling holes 44 and 44 penetrated through the coupling plate 41 to avoid the &quot;

Here, the pair of coupling shafts 43 and 43 are disposed at 180 degrees to each other, and the pair of coupling shaft assembly holes 44 and 44 are disposed at 180 degrees to each other. Then, the one coupling shaft 43 and one adjacent coupling shaft assembly hole 44 are arranged at intervals of 90 degrees.

Therefore, as shown in FIG. 7, the pair of fixed clips 40A and 40B are assembled to face each other at the intersections of the vertical and horizontal release steel bars 30A and 30B. At this time, the vertical release steel bar 30A binds to one side of the fixed clip 40A side release steel bar binding groove 42, and the horizontal release steel bar 30B binds to the other side of the fixed clip 40B side release steel bar. Each of the grooves 42 is accommodated and bound. At the same time, the coupling shaft 43 of one fixing clip 40A is fitted into the coupling shaft assembly hole 44 of the other fixing clip 40B, and the pair of fixing clips 40A and 40B are separated by the separation prevention jaw 43a. Tightening force is maintained. The release prevention jaw 43a has an inclined surface in the inlet direction and has a vertical surface on its rear side, so that it easily enters the other side coupling shaft assembly hole 44 on an inclined surface, but has a structure that cannot be caught on the vertical surface in the reverse direction. Therefore, when a pair of fixing clips (40A, 40B) is engaged by the separation preventing jaw (43a) coupled to each other is difficult to separate easily.

The coupling of the pair of fixed clips 40A and 40B is performed as follows. That is, the fixing clip 40A side coupling shaft 43 is inserted into the other fixing clip 40B side coupling shaft assembly hole 44, and the release steel bar binding grooves 42 and 42 facing each other. A pair of fixing clips (40A, 40B) is placed so that the vertical release steel bar (30A) and the horizontal release steel bar (30B) to reach. At this time, the separation prevention jaw (43a) is coupled to the coupling shaft assembly hole 44, the coupling force of the pair of fixed clips (40A, 40B) is maintained.

The pair of fixing clips 40A and 40B is fixed to the partition wall 1 by assembling the fix 10 to the fixing clip 40A or 40B side fastening holder 20 and fixing the partition wall 1 to the partition wall 1.

At this time, in the case of vertical and horizontal release steel bars 30A and 30B, a surface forming a vertex of a triangle or a hexagonal section protrudes from the outer circumferential surface thereof so that a strong friction is applied to each other, and these are fixed by fixing clips 40A and 40B. The intersections of can be joined in a solid three-dimensionally perpendicular direction without slipping.

On the other hand, the pair of fixing clips (40A, 40B) is a plurality of spacers 45 protruding to a certain height as shown in Figure 7 on the other surface of the coupling plate 41 in order to space a predetermined arrangement with the partition wall (1) It may be further formed and configured. In the present embodiment, four spacers 45 are configured as conical protrusions, but the spacers 45 are not limited to the shape or arrangement structure and the number thereof.

< Fix  Intrusion Process>

Then, it has a fix penetration process (S60).

This is a process of assembling the fix 10 to the partition wall 1 as shown in FIG. 2D after assembling the fix 10 to the pair of fixing clips 40A and 40B. At this time, the fix 10 is fastened through the fastening holder 20 installed on the pair of fixing clips 40A and 40B, and then the fix 10 is inserted into the partition wall 1.

As illustrated in FIGS. 8A and 8B, the fixation 10 is a metal material having a high strength without corroding moisture, and a plurality of wings protruding outwardly at regular intervals along the mandrel 11. 12) and the wing 12 has a shape wound spirally at a constant pitch along the longitudinal direction about the mandrel (11). That is, the fix 10 has a shape in which a plurality of spiral wings 12 are integrally coupled to the outer surface of the mandrel 11, thereby exhibiting high strength with a small cross-section, and are easily inserted once and installed like a screw. Afterwards, the structure does not come out well. The wing 12 of the fix 10 has a shape that can be fitted while maintaining a slight gap in the wing receiving portion 21 of the fastening holder 20. In the cross section, the tip of the wing 12 of the fix 10 is positioned in the helical valley of the fastening holder 20 so that the fix 10 is fixed in the fastening holder 20. The number and spacing of the wings 12 are not limited, but two or three as shown in the figure is preferable in that the structure can be simplified while satisfying the required strength. The fix 10 may be introduced into the partition wall 1 while rotating itself using a drill or other tool that transmits rotational force, such as by drilling a hole smaller than the diameter of the fix 10 in advance and then screwing a screw.

Fixing 10 and the fastening holder 20 has a shape in which the wing 12 and the wing receiving portion 21 is spirally wound like a screw in the longitudinal direction, respectively, so that only the rotation relative to the two members as shown in the screw coupling It can be done easily. In addition, since there is a predetermined distance between the wing 12 and the wing receiving portion 21, even if the fastening direction of the fix 10 and the fastening holder 20 does not match the wing 12 is naturally guided to the wing receiving portion 21 It is convenient because you can enter.

<Non-shrink mortar casting process>

Then, the vertical and horizontal release steel bars 30A and 30B have a step (S80) of pouring non-contraction mortar or concrete so that it is completely embedded and synthesized integrally with the partition wall.

Here, the mortar of cement and sand with water is called mortar. The mixing ratio of cement and sand is about 1: 3, and it is used as a joint when laying bricks, blocks, and stones, or as a finishing material for walls, floors, and ceilings. However, mortar has a disadvantage that cracks occur due to dry shrinkage due to surplus water. The non-shrink mortar solves these shortcomings and is used in parts or foundations where various loads are required based on excellent strength.

The method of pouring non-shrinkable mortar may be applied to any method known in the art, such as coating or spraying.

Finally, after the non-shrink mortar has cured, the surface can be painted to finish the surface. Preferably, the surface may be finished using environmentally friendly materials known in the art.

On the other hand, the present invention may have an inclined release steel bar installation process (S30) as follows to obtain a more dense reinforcement structure of the masonry partition wall.

<Slant variant Steel bar  Installation Process>

Inclined release steel bar installation process (S30) may be made immediately after the vertical release steel bar indentation process (S20).

Inclined release steel bar installation process 30 may appear in various embodiments depending on the structure of the inclined release steel bar.

In the first embodiment, as shown in FIG. 9A, a plurality of inclined releases are inclined at a predetermined angle with respect to the slab 2 or the beams 4 and pass through an intersection where the vertical release steel bars 30A and the horizontal release steel bars 30B meet. It can be made by installing a steel bar (31). That is, the warp release steel bar 31 is a case where a plurality of straight lines having the same length or different lengths are used. The structure of all inclined release steel bars used in the inclined release steel bar installation process (S30) is the same as the above-described vertical or horizontal release steel bars.

In this case, the second embodiment and the third embodiment may be constructed so as to reduce the number of the inclined release steel bars and make the arrangement more efficient.

The second embodiment is a case of using a pair of inclined release steel bars 31A, 31A having the same structure as shown in Fig. 9B and provided with opposite arrangement directions. The pair of inclined release steel bars 31A and 31A have wings that are bent at both sides in a 'V' shape. One inclined deformed steel bar 31A is terminated at the start end (A) at regular intervals in the slab (2), and the other inclined deformed steel bar (31A) starts at regular intervals in the beam (4). Columns (3), beams (4), and slabs (2) are selected by partially crossing the intersection where vertical and horizontally deformed steel bars (30A, 30B) intersect with each other and end in an inclined direction. It is a method using the one configured to be bent in the inclined direction at the point where it touches.

As described above, the inclined deformed steel bar 31A used in the method of the second embodiment has a 'V' shape, and is characterized by having a structure bent obliquely by selecting a slab and a beam at a portion where the pillar 3 meets.

In the third embodiment, as shown in FIG. 9C, a plurality of inclined release steel bars 31B having a 'V' shape are used. In this embodiment, all four inclined release steel bars 31B having the same structure are used, but the number may be increased according to the installation width.

As shown in FIG. 9C, one of the inclined release steel bars 31B is terminated at the start end (C) and the other end of the slab 2 at regular intervals, and the other of the inclined release steel bars 31B is spaced at a predetermined interval. At the end of the beam (4), the end of the beam (4) and the end of the vertically and horizontally deformed steel bars (30A, 30B), respectively select the intersection of the intersection part of the beam (4) It is a method of using the thing which was bent in the inclined direction at the place which contacts the slab 2, and was comprised.

Thus, the inclined release steel bar 31B used in the method of the third embodiment selects an intersection where the vertical and horizontal release steel bars 30A and 30B intersect at a vertex portion where the slab 2 and the beam 4 touch each other. It is bent and characterized in that it has an approximately V-shape.

In this way, the inclined release steel bars 31A or 31B are partially balanced without passing through all the portions where the vertical and horizontal release steel bars 30A and 30B intersect, thus reducing the amount of installation of the release steel bars, and thus making them wider on the base surface. Placed at intervals can be an efficient reinforcement.

Here, the intersection of the inclined release steel bars 31A and 31B and the vertical and horizontal release steel bars 30A and 30B before the pair of fixing clips 40A and 40B is installed may be bound by welding or using a wire. have.

When the inclined release steel bar is applied, it is a matter of course that a pair of fixing clips 40A and 40B are selectively coupled to the intersections of the vertical and horizontal release steel bars 30A and 30B.

As such, the structure of the present invention has a reinforcing structure in which vertical and horizontal release steel bars 30A and 30B are densely arranged so that they are not conducted by a lateral force acting in a direction perpendicular to the surface of the masonry partition wall 1. In addition, by selectively installing any one of the inclined release steel bars (31, 31A, 31B) it is possible to reduce the construction cost while improving the reinforcement of the structure.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention . The invention is not limited by these variations and modifications, but is only limited by the scope of the appended claims.

10: Fix
11: mandatory
12: wings
20: fastening holder
21: wings
30A: Vertically Deformed Steel Bar
30B: Horizontal Deformed Steel Bar
31,31A, 31B: Slanted Release Steel Bar
40A, 40B: Retaining clip

Claims (8)

As a method of reinforcing masonry partition walls,
(a) a base surface treatment step (S10) of peeling off the paint applied to the surface of the reinforcement masonry partition wall (1) and roughening the surface;
(b) Vertical releases divided into lower slabs 2 surrounding the reinforcement masonry partition wall 1 and beams formed on the upper beams 4 or slabs smaller than the diameter of the vertically released steel bars 30A. A vertical release steel bar installation process (S20) of forcing each of the steel bars 30A in the vertical direction and forcing the divided portions of the vertical release steel bars 30A to the fastening holders 20;
(c) The horizontal release steel bar 30B divided into the holes formed in the pillars 3 and 3 surrounding the reinforcement masonry partition wall 1 smaller than the diameter of the horizontal release steel bar in the horizontal direction. Horizontally releasing steel bar installation process (S40) for connecting the divided portions of the horizontally releasing steel bar 30B to each of the fastening holders 20 after forcibly pressing them in;
(d) A pair of fixing clips 40A and 40B is coupled to selected intersections of the vertical and horizontal release steel bars 30A and 30B to bind the vertical release steel bars 40A and the horizontal release steel bars 40B. Fixed clip coupling process (S50);
(e) Fix penetration step (S60) of assembling the fix (10) to a pair of fixing clips (40A, 40B) to the partition wall (1) to fix a pair of fixing clips (40A, 40B); And
(f) a step (S70) of pouring non-contraction mortar or concrete so that the vertical and horizontal release steel bars 30A and 30B are completely embedded and synthesized integrally with the partition wall 1;
A pair of fixing clips (40A, 40B) respectively,
A circular coupling plate 41;
A pair of release steel bar binding grooves 42 and 42 formed on one surface of the circular coupling plate 41 so as to cross each other and forming a semicircle;
A pair of coupling shafts protruding perpendicularly to the coupling plate 41 to avoid the pair of release steel bar binding grooves 42 and 42 and a plurality of separation prevention jaws 43a formed at a predetermined interval on the outer circumferential surface thereof ( 43,43);
A fastening holder 20 inserted into the pair of coupling shafts 43 and 43; And
Seismic reinforcement of masonry partition walls, comprising a pair of coupling shaft assembling holes 44 penetrating the coupling plate 41 to avoid a pair of release steel bar binding grooves 42 and 42. Way. The method according to claim 1,
Between the vertical release steel bar installation process (S20) and the horizontal release steel bar installation process (S40), the vertical release steel bar (30A) and the horizontal release steel bar (30B) intersect at an angle with respect to the slab or beam. Seismic reinforcement partition wall mounting method characterized in that it further comprises a step of installing a slant release steel bar (S30) for installing a plurality of inclined release steel bar 31 passing through the portion. The method according to claim 1,
Between the vertical release steel bar installation step (S20) and the horizontal release steel bar installation step (S40), a plurality of inclined release steel bars 31A having wings bent at both sides in a 'V' shape are vertical and horizontal release steels. Seismic reinforcement method of the masonry partition wall is characterized in that it further comprises a step (S30) of the inclined release steel bar is installed so as to pass by selecting the intersection where the bars (30A, 30B) intersect. The method according to claim 1,
Between the vertical release steel bar installation step (S20) and the horizontal release steel bar installation step (S40), a plurality of inclined release steel bars 31B having a 'V' shape are vertical and horizontal release steel bars 30A and 30B. ) Seismic reinforcement partition wall reinforcement method characterized in that it further comprises an inclined release steel bar installation process (S30) is installed to pass through the intersection of the intersection. The method according to any one of claims 2 to 4,
Fastening holder 20 has a wing receiving portion 21 that can accommodate a plurality of wings and the wing receiving portion 21 has a pitch that is consistent with the pitch of the wing has a shape spirally twisted in the longitudinal direction,
The vertical, horizontal and inclined deformed steel bars 30A, 30B and 31 or 31A or 31B have a cross-sectional shape that is triangular or hexagonal, has a pitch that matches the pitch of the wing accommodation portion 21, and has a spirally twisted shape in the longitudinal direction. ,
The fix 10 has a plurality of wings 12 spirally wound with a constant pitch around the mandrel 11 and the mandrel 11, or any one of vertical, horizontal and inclined deformed steel bars. A seismic reinforcement method for masonry partition walls, which is constructed by cutting. The method according to claim 5,
The spiral blade 12 of the fix 10 consists of two or three,
Wing receiving portion 21 of the fastening holder 20 is composed of six seismic reinforcement method of the masonry partition wall, characterized in that the seismic reinforcement is made. delete The method according to claim 1,
The pair of fixing clips 40A and 40B are further provided with spacers 45 protruding at a certain height from the other surface of the coupling plate 41 to form a predetermined distance from the masonry partition wall 1 to be seismic reinforced. A seismic reinforcement method for masonry partition walls.

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