KR101753461B1 - Wall structure and construction method thereof - Google Patents

Abstract

The wall structure according to an embodiment includes a wall made in a precast manner; End columns provided at both ends of the wall; And a connecting portion that is partially embedded in the wall and the remaining portion extends horizontally from both ends of the wall and is exposed to the outside of the wall, and the remaining portion of the connecting portion is embedded in the end post, Thereby providing a bonding force between the end pillars.

Description

[0001] WALL STRUCTURE AND CONSTRUCTION METHOD THEREOF [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a wall structure and a wall structure, and more particularly, to a method of constructing a wall structure and a wall structure by which a coupling force between a wall and an end column can be provided by a connection portion embedded in the wall .

In the structure where the main resistance element for the external force of the structure is composed of the plate type member, the loss area of the internal space is decreased because the column is not used or the use of the column is minimized, And it is widely used in houses, apartments and the like because it helps improve the residence of the indoor space.

Such a wall structure has a partition wall designed to simply divide the space and a structural wall functioning to support the load.

The structural wall is a structural wall which is located on the outside or inside of the building to support vertical and horizontal loads, and is a wall having compressive / tensile strength, bending strength, and proof strength including shear strength.

In particular, the shear wall, which may be referred to as the shear wall, may be designed to resist horizontal forces acting in parallel to the wall surface.

The reaction of the shear wall structure can vary depending on the structural material, the interaction between the walls, the location of the wall, the continuity of the wall, and the interaction between the horizontal floor and the vertical wall.

In other words, it depends on the degree of continuity between the wall and the wall, and between the wall and the floor. The compressive stress of the wall wall depends on the spacing of the wall, the height of the building, the mode of use, the position and arrangement of the opening of the wall, etc. Care must be taken not to concentrate compressive stresses.

Also, since most of the shear walls have discontinuities or openings, their rigidity is weakened, and the size and location of such openings can affect the behavior of the walls.

In this case, reinforced effect can be seen on the bending stiffness and deformation due to the use of the connecting beam for the divided shear walls due to the openings.

As described above, since the shear wall is generally used in a residential space where the space is partitioned into a predetermined area, it is being developed for a shear wall that can more effectively support the axial force and the lateral force. In the current structural design standard (KBC 2009), shear walls are divided into special shear walls and normal shear walls according to their details and ductility capabilities. Usually shear walls are designed for use in low-risk seismic areas, but special shear walls are designed for use in areas with high seismic risk. Recently, most residential areas in Korea are limited, and there are many cases where a joint residence is constructed in an area where there is a high risk of earthquakes. Accordingly, this patent relates to the construction of a special shear wall having column portions at the ends thereof. However, the details of the special shear walls are very complicated in the reinforcement at the end where the wall and the column meet.

Regarding the filed shear wall, it is disclosed in KR 2009-0133421, filed on December 29, 2009.

An object of an embodiment is to provide a method of constructing a wall structure and a wall structure in which a coupling force of a wall and an end column can be provided by a connection portion embedded in the wall.

An object of the present invention is to provide a method of constructing a wall structure and a wall structure that can simplify an arrangement by arranging a shear reinforcement in a hollow portion of a wall and arranging the pre-assembled end reinforcement in the form of a wall.

An object of the present invention is to provide a method of constructing a wall structure and a wall structure that can completely realize fixation of a connecting portion, a shear reinforcement and an end reinforcement by placing concrete on a wall and an end column portion.

An object of the present invention is to provide a wall structure and a method of constructing a wall structure that can be inserted into both ends of a wall and include a die configured to enclose an end reinforcement,

An object of the present invention is to provide a method of constructing a wall structure and a wall structure that can reduce construction errors by simplifying construction and reduce time and labor costs in construction.

According to an aspect of the present invention, there is provided a wall structure comprising: a wall formed by a precast method; End columns provided at both ends of the wall; And a connecting portion that is partially embedded in the wall and the remaining portion extends horizontally from both ends of the wall and is exposed to the outside of the wall, and the remaining portion of the connecting portion is embedded in the end post, Thereby providing a bonding force between the end pillars. In the special shear wall, the connection of the reinforcing bars of the wall to the end posts is very important.

According to one aspect, the end post portion includes an end reinforcement, and a part of the end reinforcement can overlap the connection portion.

According to one aspect of the present invention, in order to form the end pillar portion, the pillar further includes dies disposed on both sides of the wall, and concrete may be placed in the dummy.

According to one aspect of the present invention, the mold is provided in a 'C' shape, and a part of the wall is inserted through the opened 'C' shape, and the closed part of the ' And may be provided so as to surround the outside of the reinforcing bar.

According to one aspect of the present invention, both end portions of the wall and the end post portion may be provided with grooves or protrusions corresponding to each other.

According to one aspect of the present invention, the wall may include the plurality of hollow portions, and a shear reinforcement may be disposed in the plurality of hollow portions in a direction perpendicular to the connecting portion.

According to an aspect of the present invention, there is provided a method of constructing a wall structure, the wall structure being manufactured by a precast method, the wall being embedded in a connection portion exposed to the outside in a horizontal direction with respect to both ends; The mold being installed at both ends of the wall; Placing an end reinforcement within the formwork; Placing concrete in the mold; Curing the concrete; And an end column is formed at both ends of the wall by the end reinforcing bars and the concrete placed thereon. It is very important that the integrity of the reinforcement settlement is very important at the part where the wall and the column meet.

According to one aspect of the present invention, in the stage where the mold is installed such that a part of both ends of the wall is inserted, the connecting part can be disposed in the mold.

According to one aspect of the present invention, there is provided a wall formed by a pre-cast method and having a connecting portion embedded in a connection portion exposed to the outside in a horizontal direction with respect to both ends thereof, the wall having a plurality of hollow portions, .

According to the method of constructing a wall structure and a wall structure according to an embodiment, a coupling force between the wall and the end column can be provided by a connection portion embedded in the wall.

According to the method of constructing a wall structure and a wall structure according to an embodiment, a shear reinforcement is placed in a hollow portion of a wall, and a pre-assembled end reinforcement is disposed in the form of a wall, thereby simplifying the arrangement.

According to the method of constructing a wall structure and a wall structure according to an embodiment, it is possible to completely realize the fixation of the connection portion, the shear reinforcement and the end reinforcement by placing the concrete on the wall and the end column portion.

According to the method of constructing a wall structure and a wall structure according to an embodiment, it is possible to insert the end pillar into the field by providing a form that can be inserted into both ends of the wall and enclose the end reinforcement.

According to the method of constructing a wall structure and a wall structure according to an embodiment, it is possible to simplify the construction and reduce the construction error, as well as to reduce the time and labor cost required in the construction.

1 shows a top view of a wall structure according to an embodiment.
Fig. 2 shows the wall, the end pillar, and the mold separated from each other in Fig.
3 is a cross-sectional view taken along line AA of FIG.
4 is a flowchart illustrating a method of constructing a wall structure according to an embodiment.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to or limited by the embodiments. Like reference symbols in the drawings denote like elements.

FIG. 1 is a plan view of a wall structure according to an embodiment. FIG. 2 is a plan view of a wall, an end post and a mold in FIG. 1, and FIG. 3 is a sectional view taken along line A-A of FIG.

Referring to Figures 1-2, a wall structure 10 in accordance with one embodiment is a wall 100. An end pillar 200, a connection 300, and a die 400.

The wall 100 may be manufactured in a pre-casting method that is preformed in a factory or the like. The adoption of the above-mentioned pre-casse method can provide various advantages such as shortening of air, reduction of construction cost, ease of quality control, and increase of durability.

For example, the wall member 100 may be provided in a rectangular parallelepiped shape. However, the shape of the wall body 100 is not limited to this, and may be changed according to the characteristics of the place where the wall structure 10 is installed.

A plurality of hollow portions 102 may be formed in the wall 100.

For example, the plurality of hollow portions 102 may be formed to penetrate from the upper end of the wall 100 toward the lower end.

Specifically, wall 100 may be formed with three hollow portions 102, each of which may be spaced equidistant from one another.

However, the size and number of the plurality of hollow portions 102 are not limited to these, and may be provided in various sizes and numbers.

The shear reinforcement 110 may be placed in the hollow portion 102 thus formed.

The shear reinforcement 110 may be formed to extend in the longitudinal direction of the hollow portion 102, for example, in the vertical direction. In some cases, the length of the shear reinforcement 110 may extend from the wall 100 to the outside And can be prepared to be exposed.

For example, a plurality of, e.g., three, shear reinforcing bars 110 may be disposed in one hollow portion 102.

Since the concrete can be placed on the hollow portion 102 where the shear reinforcement 110 is disposed, the fixing of the shear reinforcement 110 can be completely realized.

3, when the wall structure 10 according to an embodiment is installed in two layers, the front-end reinforcing bars of the wall structure provided on the first floor are connected to the bottom of the wall structure 10 according to the embodiment May overlap the shear reinforcement 110 at the same time.

Grooves 104 or protrusions may be formed at both ends of the wall body 100.

Although FIG. 1 shows grooves 104 formed at both ends of the wall 100, both ends of the wall 100 may have protrusions or grooves of different shapes, and the end pillars 200, respectively.

As described above, the end pillar 200 can be disposed at both ends of the wall 100. As shown in Fig.

The end pillar 200 may include an end reinforcement 210.

3, the end reinforcement 210 may include a first reinforcing bar 212 and a second reinforcing bar 214.

The first reinforcing bars 212 may be disposed in parallel with the front reinforcing bars 110. For example, the first reinforcing bars 212 may be arranged to have a square cross section.

When the wall structure 10 according to one embodiment is installed on two floors, a part of the first wall of the wall structure installed on the first floor is connected to the first wall 212 of the wall structure 10 according to the embodiment, Can overlap.

The second reinforcing bars 214 may be arranged in an orthogonal direction between the adjacent first reinforcing bars 212 to connect adjacent first reinforcing bars 212.

For example, as shown in FIG. 1 or 2, four second reinforcing bars 214 may be provided on the same plane, and may be disposed apart from the second reinforcing bars 214 along the longitudinal direction of the first reinforcing bars. The four second reinforcing bars 214 may be square, for example.

Since the end reinforcement 210 thus constructed can be pre-fabricated and disposed in the mold 400 to be described later, it is possible to facilitate the placement of the end reinforcement 210. [

Also, after the formwork 400 is inserted into both ends of the wall 100 and the end reinforcing bars 210 are disposed, the concrete is locally placed so that the settlement of the end reinforcing bars 210 can be completely realized.

In addition, the connection portion 300 may be embedded in the wall 100.

The connection part 300 may be provided in the form of a reinforcing bar.

2 and 3, a part of the connection part 300 is embedded in the wall 100, and the remaining part of the connection part 300 extends horizontally from both ends of the wall 100, Lt; / RTI >

At this time, the remaining part of the connection part 300 may be embedded in the end pillar 200.

For example, the remaining part of the connecting part 300 may overlap with the two second reinforcing bars 214 lying on the extension of the connecting part 300 among the four second reinforcing bars 214 laid on the same plane.

At this time, the remaining part of the connection part 300 may be provided in a length enough to be embedded in the end post 200.

Accordingly, the remaining part of the connection part 300 is located in the mold 400 together with the end reinforcement 210. When the concrete is poured into the mold 400, the connection part 300 and the end reinforcing bar 210 can be embedded together have.

The connecting part 300 may serve to connect the wall 100 and the end pillar 200 and may provide a coupling force between the wall 100 and the end pillar 200.

Since the connecting portion 300 is already embedded in the wall 100 and the end reinforcing bars 210 are arranged in a pre-assembled state, the arrangement of the reinforcing bars can be simplified and the placing operation can be facilitated have.

In addition, to form the end post 200, the mold 400 may be disposed on both ends of the wall 100. [

Specifically, the form may be formed in a C shape, and a part of the wall 100 is inserted through the open portion 402 of the 'C' shape, and the closed portion ' 404 may be provided to surround the outer side of the end reinforcing bars 210.

Therefore, a part of the wall 100, an end reinforcing bar 210, and a part of the connection part 300 may be disposed in the form 400. [

In this state, the end pillar 200 can be formed by the concrete being poured into the pillar 400.

Since the grooves 104 or protrusions are formed at both ends of the wall 100 as described above, the grooves or protrusions 202 may be formed in the portion of the end column 200 contacting both ends of the wall 100 have.

For example, grooves 104 may be formed at both ends of the wall 100, and protrusions 202 may be formed at the end columns 200 to correspond to the grooves 104. Conversely, if protrusions are formed at both ends of the wall 100, grooves may be formed in the end columns 200 to correspond to the protrusions.

At this time, the grooves or protrusions 202 formed in the end posts 200 can be determined by the shapes of both ends of the wall 100, and furthermore, the shapes of the end posts 200 are determined by the shape of the wall 100, As shown in FIG.

As described above, the wall 100 and the end portion actuating portion 200 are connected to each other by the shape of a groove or a protrusion, so that the coupling force between the wall body 100 and the end portion actuating portion 200 can be increased.

Hereinafter, a method of constructing a wall structure according to an embodiment of the present invention will be described.

4 is a flowchart illustrating a method of constructing a wall structure according to an embodiment.

Referring to FIG. 4, the wall structure according to one embodiment can be constructed as follows.

First, a wall body made of a pre-cast method and having a connection part exposed to the outside in a horizontal direction with respect to both ends is provided (S10).

At this time, the wall may be provided with a plurality of hollow portions so that concrete can be poured in the site.

The wall may be manufactured at a factory and installed at a construction site or a place where installation of a wall structure is required.

Then, shear reinforcement is placed in the hollow portion (S20).

At this time, a plurality of shear reinforcing bars may be arranged in a direction crossing the connecting portion in the hollow portion.

Then, the end reinforcing bars are assembled (S30).

The end reinforcing bars may be formed to form end pillar portions, and may include a first end reinforcing bar disposed in a direction parallel to the front end reinforcing bars and a second reinforcing bar disposed on an extension of the connecting portion.

After the end reinforcing bars are assembled, a mold is installed to be inserted into both ends of the wall (S40).

The mold is provided in a 'C' shape so that both end portions of the wall are partially inserted, and a closed space can be formed so that concrete can be placed in the mold.

At this time, the connection portion can be disposed in the formwork.

Then, the end reinforcing bars pre-assembled in the formwork are disposed (S50).

A portion of the end reinforcement disposed within the form may overlap with the connection. In particular, the second end reinforcing bar, which is located on the extension of the connecting portion of the second end reinforcing bars, can overlap with the connecting portion.

Subsequently, concrete is poured into the plurality of hollow portions and the formwork (S60).

At this time, the shear reinforcement disposed in the plurality of hollow portions and the end reinforcement disposed in the formwork can be embedded in the concrete.

The hollow portion and the concrete laid in the mold are cured (S70).

As the concrete is cured, the wall and the end posts can be integrated.

After the curing of the concrete is completed, the form is removed (S80).

The method of constructing a wall structure and a wall structure according to an embodiment of the present invention can provide a coupling force between a wall and an end column by a connection portion embedded in the wall, and a shear reinforcement is placed in a hollow portion of the wall, By arranging the reinforcing bars in the formwork of the wall, it is possible to simplify the laying.

It is also possible to completely mold the connecting portion, the shear reinforcement and the end reinforcement by placing the concrete on the wall and the end column portion, and to form a mold which is insertable at both ends of the wall and is configured to surround the end reinforcement, It is possible to facilitate the installation of parts in the field.

Furthermore, not only the construction error can be reduced by simplifying the construction, but also the time and labor cost required for the construction can be reduced

Although the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And various modifications and changes may be made thereto without departing from the scope of the present invention. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

10: Wall structure
100: Wall
102: hollow portion
104: Home
110: shear reinforcement
200:
202: projection
210: end reinforcement
212: first shear reinforcement
214: second shear reinforcement
300: connection
400: Form
402: open portion
404: closed portion

Claims (9)

A wall comprising a plurality of hollow portions through which a shear reinforcement can be laid, the wall being constructed in a precast manner;
End columns provided at both ends of the wall; And
A part of which is buried in the wall and the other part of which extends horizontally from both ends of the wall to be exposed to the outside of the wall;
Lt; / RTI >
The remaining part of the connection part is embedded in the end post part to provide a coupling force between the wall and the end post part,
Wherein a part of the connection portion embedded in the wall body,
Wherein the plurality of hollow portions are not penetrated and are not in contact with the concrete placed in the plurality of hollow portions.
The method according to claim 1,
Wherein the end post includes an end reinforcement, wherein a portion of the end reinforcement can overlap the connection.
3. The method of claim 2,
Further comprising a die disposed at both ends of the wall to form the end post, wherein the concrete can be poured into the die.
The method of claim 3,
The mold is provided in a 'C' shape, and a part of the wall is inserted through the open portion of the 'C' shape, and the closed portion of the 'C' shape surrounds the outside of the end reinforcement A wall structure that can be provided for.
The method according to claim 1,
The wall structure may have grooves or protrusions corresponding to both ends of the wall and the end posts.
The method according to claim 1,
And the shear reinforcement can be placed in the plurality of hollow portions in a direction perpendicular to the connecting portion.
Providing a wall having a plurality of hollow portions which are manufactured in a precast manner and into which a shear reinforcement can be laid and in which connection portions exposed to the outside in a horizontal direction with respect to both ends are embedded;
The mold being installed at both ends of the wall;
Placing an end reinforcement within the formwork;
Placing a plurality of hollow portions and concrete in the formwork;
Curing the concrete; And
Removing the mold;
Lt; / RTI >
The end pillars may be formed at both ends of the wall by the end reinforcing bars and the poured concrete,
Wherein a part of the connection part embedded in the wall is formed in a substantially rectangular shape,
Wherein the plurality of hollow portions are not penetrated and are not in contact with the concrete placed in the plurality of hollow portions.
8. The method of claim 7,
Wherein the connecting portion can be disposed in the mold at a stage where the mold is installed such that a part of both ends of the wall is inserted.
8. The method of claim 7,
And placing the front shear reinforcement in a direction perpendicular to the connecting portion to the plurality of hollow portions before placing the concrete in the plurality of hollow portions.

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