KR102197689B1 - Vertical core structure horizontally assembled and construction method therewith - Google Patents

Abstract

A vertical core structure that is assembled and installed horizontally that can secure sufficient economy by saving time by lifting the vertical core structure in a precast method at high place work sites such as the rooftop of an apartment structure. As for the construction method, the vertical core structure is fixed and installed around the deck plate and then lifted and brought in by the dismantled work crane. A vertical hollow part is formed to reduce its own weight, and the vertical core structure is assembled and installed horizontally on the floor plate. S) a b-shaped precast wall module that is formed to form the outer wall of the vertical core structure in the form of a rectangular parallelepiped; And a precast inner wall part installed on the inner side of the vertical core structure to form a partitioned inner space S2.

Description

Vertical core structure assembled and installed horizontally and its construction method {VERTICAL CORE STRUCTURE HORIZONTALLY ASSEMBLED AND CONSTRUCTION METHOD THEREWITH}

The present invention relates to a vertical core structure assembled and installed horizontally and a construction method thereof. More specifically, the vertical core structure can be quickly assembled and installed by lifting the vertical core structure in a precast method at the high place work site such as a rooftop installed on the roof of an apartment structure. It relates to a core structure and its construction method.

1A shows a rooftop 11 constructed on the roof of a conventional apartment structure 10.

Since the apartment structure 10 has an elevator installed inside, and the elevator has to run to the rooftop, the elevator is installed on the rooftop and the rooftop 11 is constructed to make the necessary stairs together.

Conventionally, this rooftop (11) was constructed with formwork and cast-in-place concrete, but it takes a lot of construction time, and materials necessary for pouring concrete are transported using a work crane (not shown) installed on the outer surface of the apartment structure. There is a problem in that it takes a lot of operating cost when the working crane is installed for a long time to construct the construction.

Accordingly, there was an effort to construct such a rooftop in a precast method, but there is a limitation that the lifting weight should not exceed 5 tons because it must be transported using a working crane. Above all, how to manufacture a precast module based on this It is economical, and whether or not it can solve the connection part order problem of the precast module becomes very important, but there is a problem that it is not easy to solve this problem.

Furthermore, when the number of steel molds used in the construction of the rooftop in the precast method increases, the unit cost increases.Therefore, there is a limit to simplifying the precast module and the size of the precast module is reduced. Therefore, when trying to overcome this problem, there is a problem that quality control is not easy because the order problem of the connection part must occur.

FIG. 1B is a diagram illustrating a construction diagram of connecting the stacked vertical rectangular hollow modules 21 to each other using a vertical connector 22 in order to construct a conventional pier structure 20 in a stacked manner.

When such a vertical rectangular hollow module 21 is used, stacking is easy, and the weight of one vertical rectangular hollow module is not large, so it is easy to carry in, whereas the vertical hole 23 penetrating the vertical connector 22 is separately It must be formed, and if the cross section is enlarged, the weight of one vertical square hollow module is not negligible, and there is a problem that it is difficult to apply to a vertical core structure such as a rooftop.

1C shows an exemplary view of manufacturing a conventional vertical wall with a hollow wall 30. That is, it can be seen that the wall can be produced by using a formwork of a tightly filled rectangular parallelepiped wall, but a wall produced by reducing its own weight by forming a hollow part 31 is introduced.

Republic of Korea Patent Laid-Open Patent No. 10-2004-0046673 (Name of invention: aerial pier and construction method of precast assembly structure, publication date: June 5, 2004) Republic of Korea Patent Publication No. 10-2012-0119046 (Name of the invention: manufacturing method of hollow lightweight concrete panel for building walls and hollow lightweight concrete panel manufactured by the method, publication date: October 30, 2012)

Accordingly, the present invention enables the assembly and construction of a vertical core structure, such as a rooftop of an apartment structure, which is horizontally assembled and installed using a work crane that is fixed and installed around a floor plate, but uses a work crane because its own weight is not large. Therefore, it is easy to carry in, and if the ordering performance can be sufficiently secured, it relates to a vertical core structure that is assembled and installed horizontally so that a staircase room can be easily assembled and constructed inside, and a construction method thereof.

The vertical core structure and its construction method to be assembled and installed horizontally of the present invention for achieving the above object
First, lift the b-shaped precast wall module on the top of the floor plate of the rooftop of the apartment structure, and then first assemble the vertical core structure in the form of a rectangular parallelepiped using a vertical connection device from the floor plate, and then in the interior space It is a vertical core structure that is assembled and installed horizontally by installing a precast inner wall that can accommodate an elevator and then mounting the staircase in a partitioned interior space of the vertical core structure. A vertical hollow part is formed to reduce its own weight and is horizontally assembled and installed on the floor plate to form an inner space (S) to form the outer wall of a rectangular parallelepiped vertical core structure. Precast wall module of; And a precast inner wall part installed on the inner side of the vertical core structure to form a partitioned inner space (S2), wherein the b-shaped precast wall modules are assembled and connected to each other in the same size and shape. Also, a vertical core structure in the form of a rectangular parallelepiped is used to be assembled and installed in a horizontal assembly so that it can be self-sufficient. In the furnace assembly installation, a vertical core structure that is assembled and installed horizontally so as to secure ordering performance is provided by vertically installing the waterstop material with the short side part and the long side part contacting each other.

According to the horizontally assembled and installed vertical core structure and its construction method of the present invention, the vertical core structure is horizontally assembled by lifting the precast b-shaped wall module using a work crane fixed and dismantled on the outer surface of the apartment structure. Because it is constructed, the number of working crane days can be minimized, enabling the construction of a rooftop, which is a vertical core structure of an apartment structure, which is more economical.

The horizontally assembled and installed vertical core structure is a b-shaped precast wall module because it is assembled with a square hollow cross section, so it is not necessary to separately install a device for preventing fall, and because it is a wall module with a hollow part, it is a b-shaped precast wall. Since the module's own weight can be minimized, workability and constructability can be sufficiently secured.

The hollow part of the b-shaped precast wall module is itself a vertical space for self-weight reduction, but it is vertically communicated, and the vertical core structure of the apartment structure can be constructed by pressing it up and down using a connecting steel material. It is possible to effectively utilize the performance of the water-stop material installed on the upper and lower connection surfaces by the compression force.

In addition, since the b-shaped precast wall module can be connected and installed as an inner wall, the internal construction of the vertical core structure of the apartment structure can be quickly performed. A bracket is formed in the b-shaped precast wall module and used. It is possible to assemble the stair structure and the inner structure.

1A is an exemplary view of a rooftop constructed on the roof of a conventional apartment structure,
1B is a construction view of a conventional laminated pier structure,
1C is an exemplary view of manufacturing a conventional vertical wall as a hollow wall,
Figure 2 is an assembly perspective view of the b-shaped precast wall module of the present invention,
3 is a perspective view of a vertical core structure that is lifted and assembled horizontally by the b-shaped precast wall module of the present invention,
Figure 4 is an inner construction view of the vertical core structure of the present invention,
5A and 5B are construction flow charts of a vertical core structure assembled and installed horizontally of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and similar reference numerals are assigned to similar parts throughout the specification.

Throughout the specification, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated.

[Vertical core structure 100 installed horizontally of the present invention]

2 is a perspective view of an assembly of the b-shaped precast wall module of the present invention, FIG. 3 is a perspective view of a vertical core structure lifted and horizontally assembled and installed by the b-shaped precast wall module of the present invention, and FIG. It shows the inner construction diagram of the vertical core structure.

The vertical core structure 100, which is assembled and installed horizontally of the present invention, first lifts the b-shaped precast wall module 110 on the upper surface of the floor plate 200 of a structure already constructed, such as a rooftop of an apartment structure, After assembling and constructing the vertical core structure 100 in the form of a rectangular parallelepiped using the vertical connection device 120 on the floor plate 200, the precast inner wall portion 130 that can accommodate an elevator, etc. in the inner space (S) ) Is constructed, and then the staircase room 140 is installed in a partitioned inner space of the vertical core structure 100.

Accordingly, the vertical core structure 100 that is assembled and installed horizontally is a b-shaped precast wall module 110, a vertical connection device 120, and a precast inner wall part 130 as shown in FIGS. 2, 3 and 4 It is configured to include a staircase room (140).

First, the b-shaped precast wall module 110 is manufactured in a cross-sectional shape in a b-shaped shape, as shown in FIGS. 2 and 3, but the reason for manufacturing in this way is to assemble and connect four of the same size and shape to each other. This is because the vertical core structure 100 can be assembled and installed in a horizontal assembly in a rectangular parallelepiped shape, and because it can be self-sufficient by itself, there is no need for a fall prevention means.

Since the b-shaped precast wall module 110 is lifted and assembled by a working crane, it is not manufactured as a solid cross-section of a certain thickness, but a vertical hollow part 111 is formed to reduce its own weight.

Thus, for example, the work crane 300 that is fixedly installed around the floor plate 200 of the apartment structure and then dismantled can be used as it is for lifting the b-shaped precast wall module 110.

In addition, in the assembly and installation of the vertical core structure 100 in the form of a rectangular parallelepiped as shown in FIGS. 2 and 3, the connection part becomes a part where the short side and the long side come into contact with each other. When using the b-shaped precast wall module 110, the connection Since there are not many parts, it is possible to connect with each other while securing connection and order performance.

As such a connection method, for example, a method of filling non-shrinkable concrete while overlapping the water-stop material and the connecting reinforcement can be used.

As a result, compared to the case of forming and connecting the precast wall module in the form of a vertical plate, since there are too many connecting parts, it is possible to solve the problem that a lot of effort for order work is required and quality control is not easy.

In addition, the vertical hollow part 111 is a vertical hole formed to be exposed to the upper and lower surfaces of the b-shaped precast wall module 110, and a plurality of the inside of the b-shaped precast wall module 110 are spaced apart from each other. Since concrete is excluded as much as it is formed and occupied, it plays a role to enable self-weight reduction, and to connect the b-shaped precast wall modules 110 to each other up and down using this vertical hollow part 111 It also plays a role.

At this time, since the b-shaped precast wall module 110 has a vertical hollow part 111 by itself, it is used as it is, and it is distinguished from the case of deliberately forming a vertical hole separately in the solid cross-section as shown in FIG. 1B. After being fixed and installed around 200, it is lifted and carried by the work crane 300 that is dismantled.

Next, the vertical connection device 120 is assembled and installed horizontally as shown in FIGS. 2 and 3 to connect and fix the vertical core structure 100 in the form of a rectangular parallelepiped to the bottom plate 200 or It is useful when the self-weight of the precast wall module 110 is difficult to lift due to the capacity of the working crane and thus has to be reduced in size and stacked.

That is, since the vertical hollow part 111 of the b-shaped precast wall module 110 is also for reducing its own weight, the diameter is much larger than the steel bar used as the vertical connecting device 120.

Thus, referring to FIG. 4, even if the insert previously installed on the floor plate 200 (top of the roof) around the vertical core structure 100 is out of a certain position due to construction errors, etc., such setting errors can be absorbed as it is, so vertical connection In the installation of the steel bar used as the device 120, the workability is very excellent.

Accordingly, as shown in FIGS. 3 and 4, a bottom fixing tool 210 such as an insert is previously buried in the bottom plate 200 around the vertical core structure 100 and exposed, and the precast wall module 110 in the form of a b ) Is assembled and installed, the lower fixing part 210 is exposed to the vertical hollow part 111, so that the lower part of the steel bar is fastened and fixed to the lower fixing part 210, and connected using a coupler, the precast wall in the form of a b shape at the top The module 110 can be installed by fixing it using a fixing nut or the like on the upper surface.

In this way, when the b-shaped precast wall module 110 is fixed or stacked on the floor plate 200 (top of the roof), in order to install the waterstop material on the upper and lower connection parts, the upper b-shaped precast wall module ( It is also advantageous in securing order performance because the water-stop material is compressed by the self-weight of 110).

Next, as shown in FIGS. 2 and 3, the precast inner wall part 130 is horizontally assembled to install the b-shaped precast wall module 110 to complete the outer wall of the vertical core structure 100. S) is formed as an empty space.

Accordingly, the precast inner wall portion 130 is installed so that the inner space S is used as a space for accommodating an elevator, and a staircase room for entering and exiting the rooftop can also be made.

Accordingly, in the present invention, the b-shaped precast wall module 110 is used as it is as the first inner wall part 131, and according to FIGS. 2 and 3, as an internal space (S2) for partitioning the staircase room 140 You can see that you are using it.

Accordingly, the first inner wall part 131 has to connect both end surfaces of the b-shaped precast wall module 110 with the inner surface of the vertical core structure. To this end, the vertical bracket 132 opened at one side in a c-shaped It is installed on the inner side of the precast wall module 110 in the form of a shape, and the end surface of the precast wall module 110 in the form of a letter is inserted into the vertical bracket 132 and then fixed. Can be seen.

In addition, for additional space division, the second inner wall part 133 may be separately manufactured as an inner wall and installed using a vertical bracket 132, and according to FIGS. 2 and 3, the b-shaped precast wall module 110 It can be seen that it is installed by the vertical bracket 132 between the inner surface of the vertical core structure 100 and.

Since the vertical bracket 132 is made of steel, it is very efficient and easy to install, and it has the advantage that it can be installed directly at a desired position.

Since the second inner wall part 133 is also a wall in which a vertical hollow part is formed, it can be fixedly installed on the floor plate 200 using a vertical connection device 120, and installed as the first inner wall part 131 The b-shaped precast wall module 110 may also be fixedly installed on the floor plate 200 using a vertical connection device 120.

Next, the staircase room 140 is a precast to be installed in the interior space (S2) divided by the precast inner wall portion 130 of the vertical core structure 100, as shown in Figs. It is installed in such a way that the stairs 141 are mounted in the vertical space.

To this end, as shown in FIG. 4, a horizontal jaw 142 is formed on the inner surface of the vertical core structure 100 so that the precast stairs 141 can be mounted, and a precast staircase 141 is formed on the horizontal jaw 142. By allowing it to be mounted, rapid construction is possible.

These precast stairs 141 may be connected to each other according to the number of floors.

As a result, it can be seen that the partitioned inner space of the vertical core structure 100 of the present invention is used as an elevator installation space, a staircase room, and the like.

[Construction method of the vertical core structure 100 installed horizontally of the present invention]

Figures 5a and 5b shows a flow chart of the construction method of the vertical core structure 100 is installed horizontally assembly of the present invention.

First, the construction method is a construction method of assembling and installing a vertical core structure 100 on a floor plate 200 such as the roof top of an apartment structure, and horizontally assembling the b-shaped precast wall module 110, and a vertical connection device. It can be said that it is a method of fixing the vertical core structure 100 to the floor plate 200 with 120, and constructing the precast inner wall portion 130 and the staircase room 140 inside the vertical core structure 100.

First, as shown in FIG. 5A, the floor plate 200 is already constructed as a roof top surface of an apartment structure, and a work crane 300 that is fixedly installed around the floor plate 200 and then dismantled is used.

In addition, the bottom plate 200 is in a state in which a lower fixing tool 210 such as an insert for installation of the vertical core structure 100 is buried and exposed.

In general, the vertical core structure 100 is constructed in the form of a rectangular parallelepiped, so a lower fixing device 210 is installed in response to this, but a plurality of vertical hollow parts 111 are formed in the b-shaped precast wall module 110 even if a plurality of them are formed apart. It is easy to expose it.

Accordingly, as shown in FIG. 5A, the b-shaped precast wall module 110 is lifted to the floor surface 200 by using the working crane 300 and assembled horizontally.

The vertical core structure 100 may be constructed by horizontally assembling the b-shaped precast wall module 110 in one stage, but the vertical core structure 100 may be constructed by stacking in multiple stages.

In the case of stacking in multiple stages, the vertical hollow portions 111 are arranged to communicate with each other while the side connection portions of the b-shaped precast wall module 110 are not positioned on the same line up and down.

Next, the side connection parts of the b-shaped precast wall module 110 are integrated horizontally with each other so that the order is possible while being integrated with each other.

That is, in the assembly and installation of the vertical core structure 100 in the form of a rectangular parallelepiped, the connection part becomes a part where the short side and the long side are in contact with each other, and a method of filling the non-shrink concrete by overlapping the water-stop material and the connecting reinforcement can be used. .

Next, the vertical connection device 120 is inserted into the vertical hollow part 111 of the b-shaped precast wall module 110, and the lower end is fixed in such a manner that the lower end is rotated to the lower fixing device 210, and the upper end is By fixing with a fixing nut on the upper surface of the precast wall module 110 of the shape, the vertical core structure 100 is fixed to the upper surface of the bottom plate 200. Of course, referring to FIG. 5A, the vertical connection device 120 may be installed first, and then the b-shaped precast wall module 110 may be inserted into the vertical connection device 120.

Of course, in the case of stacking the b-shaped precast wall module 110, the vertical connection device 120 can be extended by connecting the vertical connection device 120 up and down using a coupler on the top surface of the first stage.

Next, as shown in FIG. 5B, the precast inner wall portion 130 is constructed so as to partition the inner space of the vertical core structure 100.

This is because the b-shaped precast wall module 110 is used as the first inner wall part 131 as it is, so that it is used as an inner wall for partitioning the staircase room, or the second inner wall part 133 is used inside for additional space partitioning. It can be formed using a wall, but using a vertical bracket 132 with one side open in a c-shape, the b-shaped precast wall module 110 and the second inner wall part 133 are inserted and then fixed. Just assemble and install.

As the first inner wall part 131, the b-shaped precast wall module 110 and the second inner wall part 133 are lifted and carried using a work crane, and the vertical bracket 132 is free of the b-shaped It does not matter if it is formed in the cast wall module 110 in advance or installed using anchor bolts or the like at the required site in the field.

Next, the stair chamber 140 is assembled and installed in the internal space divided by the vertical core structure 100.

The staircase room 140 is also constructed in such a way that the precast staircase is lifted using a work crane, and is inserted downward into the interior space of the vertical core structure 100 while being hung on the horizontal jaw.

As a result, after constructing both the inner wall and the stairwell in the inner space of the vertical core structure 100, the upper surface is also finished with a roof structure using a work crane, thereby completing the final vertical core structure 100.

Since all the vertical core structures 100 of the present invention are assembled and installed using a working crane, the work can be performed in about 2-5 days per one, so the dismantling of the working crane can be started earlier than when using the cast-in-place concrete method. Therefore, it is possible to quickly and economically construct the vertical core structure 100.

The above description of the present invention is for illustrative purposes only, and those of ordinary skill in the art to which the present invention pertains will be able to understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. do.

100: vertical core structure
110: a letter-shaped precast wall module
111: vertical hollow part
120: vertical connection device
130: precast inner wall part
131: first inner wall portion
132: vertical bracket
133: second inner wall portion
140: staircase room
141: precast stairs
142: horizontal jaw
200: bottom plate
210: lower fastener
300: working crane

Claims (10)

After lifting the b-shaped precast wall module 110 on the upper surface of the floor plate 200 of the rooftop of the apartment structure, the vertical core structure first in the form of a rectangular parallelepiped using the vertical connection device 120 from the floor plate 200 After assembling (100), after constructing the precast inner wall portion (130) in which an elevator can be accommodated in the inner space (S), the staircase room (140) is placed in the partitioned inner space of the vertical core structure (100). It is a vertical core structure that is assembled and installed horizontally that is constructed in a mounting manner,
In order to reduce the self-weight, a vertical hollow part 111 is formed, and it is horizontally assembled and installed on the floor plate 200 to form an inner space S to form the outer wall of the vertical core structure 100 in the form of a rectangular parallelepiped. Cast wall module 110; And
The vertical core structure 100 is installed on the inner side of the precast inner wall portion 130 to form a partitioned inner space (S2);
The letter-shaped precast wall module 110,
The vertical core structure 100 can be assembled and installed horizontally in the form of a rectangular parallelepiped just by assembling and connecting to each other in the same size and shape, so that it is formed to be self-sufficient.
The b-shaped precast wall module 110 is formed of a short side portion and a long side portion, and in the assembly and installation of the vertical core structure 100 in a rectangular parallelepiped shape, the connection portion is a portion where the short side and the long side are in contact with each other. Vertical core structure that is assembled and installed horizontally to ensure ordering performance by vertical installation. The method of claim 1,
In order to fix the vertical core structure 100 to the bottom plate 200,
It is inserted into the vertical hollow part 111 of the b-shaped precast wall module 110 and fastened to the bottom fixing tool 210 formed so that the bottom is exposed to the bottom plate 200 in advance, and the top is a b-shaped precast wall A vertical core structure that is assembled and installed horizontally to further install a vertical connection device 120 fixed on the upper surface of the module 110. The method of claim 1,
The precast inner wall portion 130 is
The first inner wall part 131 is formed by inserting both end surfaces of the b-shaped precast wall module 110 into the vertical bracket 132 with one side open in the form of a C formed on the inner side of the vertical core structure. Vertical core structure that is assembled and installed horizontally. The method of claim 3,
For additional internal space division, the second inner wall portion 133 is installed using a vertical bracket 132, but a vertical bracket between the b-shaped precast wall module 110 and the vertical core structure 100 inner surface ( A vertical core structure that is assembled horizontally and installed by 132). The method of claim 3,
The precast staircase 141 is mounted so that the staircase can be installed in the interior space S2 divided by the precast inner wall portion 130 of the vertical core structure 100,
A horizontal jaw 142 is formed on the inner side of the vertical core structure 100 so that the precast stairs 141 can be mounted, and the precast stairs 141 can be mounted on the horizontal jaw 142 Vertical core structure assembled and installed. delete The method of claim 1,
While fixing or stacking the b-shaped precast wall module 110 on the floor plate 200 and installing the waterstop material at the upper and lower connection parts, the weight of the b-shaped precast wall module 110 above A vertical core structure that is assembled and installed horizontally to ensure the water-repellent performance by compressing the water-stop material. After lifting the b-shaped precast wall module 110 on the upper surface of the floor plate 200 of the rooftop of the apartment structure, the vertical core structure first in the form of a rectangular parallelepiped using the vertical connection device 120 from the floor plate 200 After assembling (100), after constructing the precast inner wall portion (130) in which an elevator can be accommodated in the inner space (S), the staircase room (140) is placed in the partitioned inner space of the vertical core structure (100). It is a vertical core structure construction method that is assembled and installed horizontally that is installed in a mounting method,
(a) Using the work crane 300 fixedly installed around the floor plate 200 of the rooftop of the apartment structure, a vertical hollow part is formed to reduce the self-weight, and it is assembled and installed on the floor plate 200 horizontally to the internal space (S ) Is formed to lift the b-shaped precast wall module 110 that forms the outer wall of the vertical core structure in the form of a rectangular parallelepiped, and assembling and installing horizontally on the floor plate;
(b) forming a partitioned inner space (S2) by installing a precast inner wall portion 130 on the inner side of the vertical core structure; And
(c) mounting a precast staircase 141 so that a staircase can be installed in an interior space (S2) divided by the precast inner wall portion 130 of the vertical core structure 100; and
The b-shaped precast wall module 110 of step (a),
The vertical core structure 100 can be assembled and installed horizontally in the form of a rectangular parallelepiped just by assembling and connecting to each other in the same size and shape, so that it is formed to be self-sufficient.
The b-shaped precast wall module 110 is formed of a short side portion and a long side portion, and in the assembly and installation of the vertical core structure 100 in a rectangular parallelepiped shape, the connection portion is a portion where the short side and the long side are in contact with each other. A vertical core structure construction method that is assembled and installed horizontally to ensure ordering performance by installing vertically. The method of claim 8,
The work crane 300 fixedly installed around the bottom plate 200 of the step (a) lifts the b-shaped precast wall module 110 that forms the outer wall of the vertical core structure, and is assembled and installed horizontally from the bottom plate. Then dismantled,
In order to fix the vertical core structure 100 to the floor plate 200, it is inserted into the vertical hollow part 111 of the b-shaped precast wall module 110 so that the lower end is exposed to the floor plate 200 in advance. A vertical core structure construction method that is fastened to the lower fixture 210, and the upper end is assembled horizontally to further install a vertical connection device 120 fixed on the upper surface of the b-shaped precast wall module 110. The method of claim 8,
In the step (c), a horizontal jaw 142 is formed on the inner surface of the vertical core structure 100 so that the precast stairs 141 can be mounted, and a precast staircase 141 is formed on the horizontal jaw 142 So that it can be mounted,
The first inner wall part 131 is formed by installing both end surfaces of the b-shaped precast wall module 110 into a vertical bracket 132 with one open side in a ``shaped'' shape formed on the inner side of the vertical core structure. ,
For additional internal space division, the second inner wall portion 133 is installed using a vertical bracket 132, but a vertical bracket between the b-shaped precast wall module 110 and the vertical core structure 100 inner surface ( 132) horizontally assembled and installed vertical core structure construction method.

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