KR101301076B1 - Wall structure construction method using precast front wall panel and precast back wall panel - Google Patents

Abstract

PURPOSE: A construction method of a wall structure using a precast front wall and a precast rear wall is provided to include a cross section form including bending rigidity on applied load and sufficiently obtain an economical property and efficiency in manufacture, transfer, and installation by minimizing self-loads of a precast wall. CONSTITUTION: A construction method of a wall structure using a precast front wall (110) and a precast rear wall (120) comprises as follows. Connection reinforcing bars (114,124) of the precast front wall and the precast rear wall are laid down on the bottom of a construction field in order to face the upper side. Inner wall reinforcing bars (131,132,133) are arranged on the precast front wall and the precast rear wall. The precast rear wall is put face down on the upper side of the precast front wall, and the connection reinforcing bars of the precast front wall and the precast rear wall are individually connected. The precast front wall and the precast rear wall are vertically stood. Inner wall concrete is placed in the space between the front wall and the rear wall so that inner wall reinforcing bars are embedded. [Reference numerals] (AA) Make the structure stood

Description

WALL STRUCTURE CONSTRUCTION METHOD USING PRECAST FRONT WALL PANEL AND PRECAST BACK WALL PANEL}

The present invention relates to a wall structure construction method using the precast front and back walls. More specifically, the present invention relates to a wall structure construction method that enables more economical and efficient wall structure construction by mixing precast walls and cast-in-place concrete.

1 is a construction of a conventional wall structure associated with the present invention.

It can be seen that the wall structure is composed of the bottom plate 10, both walls 20 and the top plate (30).

The bottom plate 10 is usually constructed to have a predetermined thickness by placing on-site concrete 15, and usually after both walls 20 are first installed, they are installed by on-site concrete pouring between the lower portions of both walls. do.

In the case of FIG. 1, both walls 20 are illustrated in the form of retaining walls in which the wall 22 is hinged to the bottom plate 21. In this case, the bottom plate 10 is formed by the connecting reinforcing bar 14 and the coupler 16. ) And both walls 20 are integrated with each other.

The wall 20 is constructed by connecting a plurality of wall segments to each other in the construction direction (the longitudinal direction) of the box structure.

At this time, the method of connecting the wall in the longitudinal direction is usually connected by a variety of connecting means such as shear key, connecting bolt and nut.

However, the most important point in the connection of the longitudinal walls is whether the connection performance of the wall segments can be sufficiently secured, and whether the constructability can be improved by minimizing the number of installation of the wall segments in the range of manufacture and transport. .

First of all, in the case of the connection performance, the method of connecting a plurality of wall segments may inevitably cause inequality even though the quality control is good because many connection joints have to be formed even though multiple connection methods are used. Management is inevitably difficult, which means that there are limitations in structurally integrating a plurality of wall segments in the longitudinal direction.

In addition, many wall segments are prefabricated at the factory. The closer the distance between the production site and the construction site is, the easier the transportation, the higher the constructability and the economical, but the size that can be transported by using a vehicle is inevitably limited.

In general, the height of a plurality of wall segments is limited, but a length of about 1 m to 2 m in the longitudinal direction based on approximately 3 to 5 m before and after is to be connected to each other. However, as the length of one wall segment becomes longer, the weight increases, so the size of the wall segment that can be transported and constructed is inevitably limited in consideration of transport constraints and site construction.

Furthermore, when the wall segment is precast, the bottom plate 10 is generally hinged. In this case, the wall segment is erected and supported on the bottom plate so that the bottom plate and the wall segment are connected to each other. It may be advantageous that the bending moment does not occur, but the self-weight including the top plate and the bending moment due to earth pressure are inevitably concentrated on the wall segment and the bottom plate, thereby increasing the thickness of the wall segment.

In this way, the connection between the bottom plate and the wall segment can be hardened in any way. However, since the wall segment is precasted, the method of tightening the bottom plate with the bolt (such as bolts) is disadvantageous in terms of cost and workability. do.

In addition, the connection joint is inevitably formed in the longitudinal connection with the wall segment, but there is a problem in that it is not easy to secure the actual watertightness even when using an exponential means in such a connection joint.

Furthermore, the top plate 30 may use a precast method or a site casting method using formwork, such as both walls, depending on the site conditions, the precast top plate 32 so that the prestress is introduced by the tension member 31 in the transverse direction. It can be seen that. At this time, the precast top plate 32 is installed on both walls, and then takes the method of finishing with the cast-in-place concrete 33.

Therefore, the present invention in the construction of the wall structure

The precast walls have a cross-sectional shape formed to have flexural stiffness that can effectively resist the working load, but they are appropriately mixed with cast-in-place concrete to minimize the self-weight of the precast walls. It is possible to secure enough economic feasibility and to structurally integrate the wall with the top plate and the bottom plate in the longitudinal direction, but it is structurally more stable, and the wall and the bottom plate can be easily hardened to effectively distribute the bending moment acting on the wall and the bottom plate. An object of the present invention is to solve the provision of a wall structure construction method using precast front and rear walls.

In order to achieve the above technical object

First, in order to construct a wall having a predetermined thickness, the precast front wall and the rear wall are spaced apart from each other and lying on the floor, so that the internal reinforcing bar can be reinforced between the precast front wall and the rear wall. . Furthermore, the reinforcement work inside the wall is made by setting up the precast front wall and the precast back wall, which are integrated with each other, by placing the precast back wall above the precast front wall where the internal reinforcing bar is laid in a lying state. It will be able to significantly shorten the air.

Secondly, the space between the precast front wall and the rear wall is to be cast by the interior wall concrete in a cast-in-place manner so that the precast front wall and the rear wall are vertically set to each other.

Third, both ends of the precast front wall and the rear wall of the present invention are formed with bent ends formed in contact with each other in the longitudinal direction, the precast front wall and the rear wall are integral with each other in the longitudinal direction by the cast-in-place concrete. Longitudinal connection performance and watertightness between the cast front wall and the back wall is ensured.

Fourth, the lower part of the precast rear wall of the wall structure of the present invention allows the opening to be formed by the support column so that the main reinforcing bar of the reinforcing steel in the wall of the precast front wall extends toward the bottom plate through the opening, and the bottom plate concrete is poured. The wall structure and the bottom plate were made to have the effect of rigidly connected to each other.

Fifth, by using the inner wall reinforcement to integrate the upper plate on the upper part of the precast front wall and the rear wall so that the top plate and the precast front wall and the rear wall can be formed to be rigid with each other.

To this end,

Protruding reinforcement of the precast front wall including the front plate and the protruding reinforcing bar protruding from the front plate back surface protruding reinforcing bar and protruding reinforcing bar protruding from the front of the back plate; Put it on the floor

Reinforce the inner wall reinforcement using the protruding reinforcement of the precast front wall and the precast rear wall lying on the floor,

The precast front wall and the rear wall are connected to each other while the precast front wall is spaced above the precast front wall lying on the floor, and then the precast front wall and the rear wall connected to each other are raised vertically. Settings,

And placing the inner wall concrete in the space between the front wall and the rear wall so that the protruding reinforcement and the inner wall reinforcing bar are embedded, wherein the front plate and the rear plate are made of reinforced concrete and have bent ends formed at both ends. Is provided so that the bent end outer surface is in contact with each other in the longitudinal direction, and the bent ends are provided with a wall structure construction method using the precast front and back walls to be connected to each other using the longitudinal connecting member.

According to the present invention, the wall structure is mixed with the precast method and the cast-in-place concrete method. However, the precast front wall and the rear wall are manufactured to minimize their own weight, so as not to be affected by the limitations of the wall that can be manufactured, transported, and constructed. In the field, the wall reinforcement and the site-casting internal wall concrete and the bottom plate concrete are poured to enable the construction of a thinner wall structure through the longitudinal connection performance of the wall and the rigid connection with the bottom plate.

In addition, according to the present invention, the wall structure is coupled to the precast rear wall to the precast front wall by connecting reinforcing bars to the precast front wall, while the wall structure is installed on the precast front wall and the rear wall lying on the floor of the site. Since it is installed in a self-supporting position, even if the height of the wall is large, the worker can easily reinforce the inner wall of the wall.

In addition, while the precast front wall and the precast back wall according to the present invention can minimize the thickness by the protruding reinforcement, the bent end acts as a supporting beam for supporting the front plate and the back plate of the front wall and the rear wall. It is possible to provide a cross-sectional wall structure having a more effective rigidity for.

1 is a construction attempt of a conventional wall structure,
2 is a loading action diagram of the precast front and back walls of the present invention;
3a, 3b and 3c is a perspective view of the precast front and rear walls of the present invention and the inner wall reinforcement,
4a and 4b is a connection structure of the wall structure, the bottom plate and the top plate of the present invention,
5A, 5B, 5C and 5D are flowcharts illustrating wall structure construction using the precast front and back walls of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise.

[Load Action of Precast Front and Back Walls of the Present Invention]

Figure 2 shows the loading action diagram of the precast front wall 110 and the precast rear wall 120 of the present invention.

First, the precast front wall 110 and the precast rear wall 120 are structures having a bent end portions 113 and 123 formed on both sides of the front plate 111 and the rear plate 121 as shown in FIG. 3A, respectively. It is understood that the protruding bars 112 and 122 protrude from the rear and front surfaces of the front plate 111 and the rear plate 121, and the connecting bars 114 and 124 protrude from the rear and front surfaces of the bent ends 113 and 123. Can be.

In this case, in FIG. 2, the front plate 111 and the rear plate 121 will be referred to as a wall slab, and the bent ends 113 and 123 will be referred to as a wall girder.

Accordingly, when a load is applied to the wall slab, the wall slab is curved to bend. At this time, if the height is divided into H1 and H2, it will be bent and bent by the load acting on the wall slab with the height of H1.

Basically, the protruding reinforcing bars formed on the wall slab serve to reinforce the wall slab sufficiently to resist the applied load.

Furthermore, the wall girder serves as a longitudinal point portion for supporting the wall slab on which the load acts on the rear surface. That is, the connecting reinforcement formed on the wall girder serving as the longitudinal point portion is connected to the other connecting reinforcement as shown in FIG. 3a and is supported by the back plate, so that reaction force is possible, so that the wall girder is in the longitudinal direction to the load acting on the wall slab. You can play a secondary role.

As a result, the wall slab of the present invention is formed to a minimum thickness by the wall slab, wall girder, connecting reinforcing bar and protruding reinforcing bar to ensure sufficient bending rigidity against the load action even if the weight is small,

Furthermore, the wall inner reinforcement 130 is further reinforced between the precast front wall 110 and the precast back wall 120 to correspond to the separation distance between the precast front wall 110 and the precast back wall 120. The reinforcement can serve to reduce the thickness of the structure (100). This will be described later.

[Precast front and rear wall (110, 120) of the present invention]

3A and 3B are perspective views of the precast front and rear walls 110 and 120 of the wall structure 100 of the present invention, and FIG. 3C is an internal wall reinforcement that is disposed between the precast front and rear walls 110 and 120. 130: 131, 132, 133) shows the back muscles.

First, the wall structure 100 is disposed so that the precast front wall and the rear wall (110, 120) is spaced apart from each other, as shown in Figure 3b, the inner wall reinforcement 130 in the space between the precast front wall and the rear wall as shown in Figure 3c ) And the inner wall concrete 140 is poured as shown in FIGS. 4A and 4B so that the inner wall reinforcement 130 is embedded.

First, the precast front wall 110 and the precast rear wall 120 are precast concrete members disposed to face each other as shown in FIG. 3A.

First, the precast front wall 110 is formed of the front plate 111 and the protruding reinforcement 112, the front plate 111 is to form the front of the wall to be manufactured in the form of reinforced concrete plate having a certain thickness. .

When the front plate 111 is lifted, for example, the front plate 111 is formed to have a thickness enough to resist self weight, thereby minimizing its own weight.

To this end, the front plate 111 is preferably made of high-strength concrete in the form of a plate having a constant longitudinal width (B) and the cross-sectional height (H), both ends are longitudinally connected to the precast front wall (110) To be formed to be bent (formed by the bent end) for.

Accordingly, the outer surfaces of the bent end 113 positioned at the longitudinal connection portion are in contact with each other in the longitudinal direction as shown in FIGS. 3B and 3C so that they are fastened to each other by the longitudinal connection member 128 such as a connection bolt or a fastener such as a nut or a tension member. To be compressed.

In addition, the connecting reinforcing bar projecting from the front of the bent end 123 of the precast rear wall 120 disposed to face each other as shown in FIGS. 124 and the coupler 126 and the internal connecting reinforcement 127 are connected to each other to enable a stable setting of the precast front wall 110 and the precast rear wall 120.

In addition, as shown in FIG. 3a, the inner longitudinal force reinforcing bars 111a extending in the longitudinal direction in the front plate 111 are vertically arranged in multiples, and are also spaced apart from the surface of the rear surface of the front plate and extend in the longitudinal direction. Longitudinal external reinforcing bars (112b) to be arranged, and longitudinal longitudinal connecting force in the form of a corrugated reinforcement that also extends in the longitudinal direction such that the longitudinal internal reinforcing bars (111a) and the longitudinal external reinforcing bars (112b) are connected to each other. The reinforcing bars 112c are disposed.

Therefore, it can be seen that a part of the longitudinal connecting power reinforcing bars 112c is embedded in the front plate 111 and a part is disposed to be exposed from the front plate rear surface.

Further, it can be seen that the longitudinally connected reinforcement bars 112c in the form of corrugated reinforcement are arranged to extend from each of the two vertically loaded internal reinforcement bars 111a to one longitudinal external reinforcement bar 112b.

Accordingly, it can be seen that the protruding reinforcement 112 is formed of a longitudinal external reinforcing bar 112b and a longitudinal connecting reinforcing bar 111c in the form of an exposed corrugated bar based on FIG. 3A.

The role of this protruding reinforcement 112 is

First, it will act as a reinforcing bar to reinforce the front plate. In other words, it is possible to manufacture a thinner front plate by reinforcing the front plate formed of concrete.

Second, it serves as a synthetic reinforcing bar that can synthesize the inner wall concrete and the front plate to be described later integrally with each other.

Third, it serves as a support reinforcing bar and the spacer reinforcing bar to easily reinforce the internal wall reinforcement to be described later.

Next, the precast rear wall 120 is also formed of the rear plate 121 and the protruding reinforcement 122 as shown in FIG. 3A.

That is, the back plate 121 is to form the back of the wall structure 100 to be manufactured in the form of reinforced concrete plate having a certain thickness. The back plate 121 is also the same as the front plate to minimize the weight by forming only a thickness enough to resist the weight when lifting the back plate.

To this end, the back plate 121 is also preferably made of high-strength concrete in the form of a plate having a constant longitudinal width and cross-sectional height, and both ends are also connected to the longitudinal direction of the precast back wall 120 like the front plate. To bend to form. The outer surface of the bent end 123 is also in contact with each other in the longitudinal direction to be fastened to each other by the longitudinal connection member 128, such as fasteners or tension members such as connecting bolts, nuts.

In addition, the connecting reinforcing bars 114 and the coupler 126 and each other protruding from the bent end 113 of the precast front wall 110 installed to face each other by allowing the connecting bars 124 to protrude on the rear surface of the bent end 123. As described above, the internal connection reinforcing bars 127 are connected to each other to enable stable initial setting of the precast front wall 110 and the precast back wall 120.

The difference between the back plate 121 and the front plate 111 is that the bottom of the back plate 121 is formed to be supported by the column support portion 125, the height of the back plate 121 of the front plate 111 Is smaller than the height.

That is, the pillar support 125 is a vertical column-shaped member spaced apart from each other in the longitudinal direction, and the main reinforcement of the inner wall reinforcement to the opening S, which is a space between the pillar support 125 as shown in Figs. 3b and 4a. The 131 is bent and extended to the opening to extend toward the bottom plate 200.

Accordingly, the bottom plate concrete 210 and the wall inner wall concrete 140 may be integrated with each other by the main reinforcing bars 131 to be firmly connected to each other.

Furthermore, the height of the front plate 111 is increased so that when the concrete is laid for the construction of the top plate 300 as shown in FIGS. 3C and 4A, the front plate 111 serves as a formwork and extends to the top plate 300. It is to be able to effectively secure the reinforcement space of the cast iron 131.

In addition, the rear plate 121, as shown in Figures 3a and 3b to the inside of the rear plate 121 is a longitudinally extending internal reinforcing bars (121a) extending in the vertical direction up and down, the surface of the rear plate back The longitudinal external reinforcing bars 122b, which are spaced apart from the longitudinal extension, also extend in the longitudinal direction so that the longitudinal internal reinforcing bars 121a and the longitudinal external reinforcing bars 122b are connected to each other. Longitudinal connecting lift bars 122c in the form of corrugated bars are arranged.

Accordingly, it can be seen that a part of the longitudinal connecting power reinforcement 122c is embedded in the back plate 121 and part is disposed to be exposed from the front of the back plate.

Further, it can be seen that the longitudinally connected reinforcement bars 122c in the form of corrugated reinforcement are arranged to extend from each of the two vertically loaded internal reinforcement bars 121a to one longitudinal external reinforcement bar 122b.

Accordingly, it can be seen that the protruding reinforcement 122 is formed as part of the exposed longitudinal external reinforcing bar 122b and the longitudinal connecting reinforcing bar 122c in the form of corrugated reinforcing bars.

Next, the inner wall reinforcement 130 may be divided into a main reinforcing bar 131, a reinforcing bar 132, and a stirrup bar 133 as shown in FIG. 3C. The precast front wall 110 and the precast back wall 120 are described. ) Is manufactured in the form of a thin plate, and thus cannot have a large load bearing capacity by itself.

Accordingly, the present invention reinforces the inner wall reinforcement 130 between the precast front wall 110 and the precast back wall 120 and the precast front wall 110 and the precast rear wall 120 to embed the inner wall reinforcement. By placing the interior wall concrete 140 in-site between the) to resist the load transmitted as the wall structure (100).

The main reinforcing bar 131 is a vertical bar shape as shown in FIG.

The reinforcement bar 132 is installed so that the reinforcement so as to extend in the longitudinal direction horizontally with respect to the main reinforcing bar 131 is spaced up and down.

In addition, the stirrup reinforcement 133 is a loop reinforcing bar that horizontally wraps the main reinforcing bars of the precast front wall 110 and the precast rear wall 120.

That is, the inner wall reinforcement 130 requires a lot of effort to the initial installation of the present invention, the present invention is the projecting reinforcement (112, 122) is formed on the precast front wall 110 and the precast rear wall (120) The supporting reinforcing bar is easy to reinforce, so that it is possible to secure enough workability in the field.

In addition, since the reinforcing bars 112 and 122 also serve as a kind of spacer, it is possible to easily set the correct reinforcement position of the inner wall reinforcement 130, which enables precise inner wall reinforcement 130 reinforcement.

In this case, in particular, the main reinforcing bar of the precast front wall 110 is to extend vertically along the precast front wall 110, the lower portion is arranged to extend toward the bottom plate via the opening between the support pillars of the precast rear wall (120) As a result, when placing low-floor concrete, it will be buried.

[Construction of Precast Front and Back Walls 110 and 120, Bottom Plate 200 and Top Plate 160 of the Present Invention]

4A is a diagram illustrating the connection between the precast front and rear walls 110 and 120 and the bottom plate 200 of the present invention, and FIG. 4B is a diagram illustrating the connection between the precast front and rear walls 110 and 120 and the upper plate 300 of the present invention. to be.

First, referring to FIG. 4A, it can be seen that the precast front walls and the rear walls 110 and 120 are also installed in the state where the inner wall reinforcing bars 130: 131, 132, and 133 are already supported on the ground.

In this case, in particular, the reinforcing bar 131 of the precast front wall 110 may be horizontally bent into the opening S of the precast rear wall 120 to extend to a portion where the bottom plate 200 is formed.

Accordingly, the main reinforcing bar 131 which is disposed on the precast front wall 110 serves as a connection reinforcing bar between the inner wall concrete and the bottom plate concrete.

Installing the formwork (not shown) necessary for this and placing the bottom plate concrete 210 and the interior wall concrete 140 can be installed with the bottom plate and the wall structure naturally. Accordingly, the wall structure and the bottom plate of the present invention are connected to each other in a rigid manner.

Referring to FIG. 4B, after the construction of the bottom plate and the wall structure is completed, a part of the top plate 300 is constructed. That is, the bottom plate, the wall structure and the top plate are formed into a rectangular box structure as shown in FIG. 5D by the construction of the top plate 300. The final construction may be completed, such a top plate may use a precast top plate, and the top plate may be formed as one top plate by connecting the upper parts of both wall structures to each other, or two upper and lower top plates may be formed.

[Construction method of wall structure using precast front and rear wall]

5A, 5B, 5C and 5D illustrate a wall structure construction method using the precast front and rear walls of the present invention.

The final construction of the wall structure will be described on the basis of the case of a box-like structure including the bottom plate, both wall structures and the top plate.

First, FIG. 5A illustrates a method of reinforcing the inner wall reinforcement 130 to the precast front and rear walls 110 and 120.

That is, the precast front and rear walls 110 and 120 manufactured and imported from the factory are laid on the floor of the site so that the connecting bars 114 and 124 face upward.

Next, the inner wall reinforcing bars 130, 131, 132, and 133, which were previously described, are placed on the lying precast front and back walls 110 and 120.

Looking at the reason for adopting such a process, even if the height of the precast front and rear walls (110, 120) is more than 2m, the internal wall reinforcement (130: 131, 132, 133) to the vertically precast front and rear walls (110, 120) Working out your stomach becomes very difficult.

This is because the wall internal reinforcing bars (130: 131, 132, 133) is carried out by the manual work by the worker to move one by one. For example, even if the height is only 2m, a temporary construction bar for installing a scaffold, etc. for the worker to work safely is required, such as diarrhea Even if the temporary copper bar is installed, the work efficiency of reinforcing the inner wall reinforcement (130: 131, 132, 133) having a height of 4 to 5 m is inevitably deteriorated, which inevitably causes a delay in air.

Therefore, the present invention does not reinforce the inner wall reinforcement 130 to the precast front and rear walls 110 and 120 that are erected in a vertical state, and the inner wall reinforcement 130 to the precast front and rear walls 110 and 120 lying on the floor. By reinforcement is to increase the efficiency of the reinforcement work of the inner wall reinforcement 130 and in particular to significantly reduce the air.

Accordingly, when the reinforcement work of the inner wall reinforcement 130 is completed on the precast front and rear walls 110 and 120, the precast rear walls 110 and 120 are placed on the precast front wall 110 and the connection reinforcing bars 114 and 124 are upwardly disposed. The coupler 126 and the internal connecting rebar 127 are connected to each other.

Accordingly, the coupler 126 and the internal connection reinforcing bar 126 and the internal connection reinforcing bar 127 may have a diameter that is rigid enough to support the precast rear wall 110 and 120 spaced above the precast front wall 110. It would be desirable to use steel rods and the like.

The precast front wall 110 and the precast back wall 110 and 120 connected to each other are raised vertically, and the precast front wall 110 and the precast back wall 120 connected to each other as shown in FIG. Are arranged to be connected to each other in the longitudinal direction.

That is, as described above, the longitudinal connection of the precast front wall or the precast back wall 110 and 120 is performed by compressing the bent ends arranged so that the outer surfaces thereof are in contact with each other in the longitudinal direction with a tension member or a connecting bolt to each other to the precast front wall and the rear wall. Walls 110 and 120 are installed to be connected to each other in the longitudinal direction.

In this case, each of the precast front and rear walls 110 and 120 may be inverted by the placing pressure when placing the concrete in the interior of the site, but the reinforcing bars formed on the bent ends 113 and 123 facing each other as described above. The coupler 126 and the internal connecting rebar 127 are restrained while maintaining a constant distance from each other to more effectively support the pour pressure.

This restriction plays a very important role in securing stability as the height of the precast front wall and the back wall 110, 120 increases.

At this time, the lower part of the precast rear wall 120 can be confirmed that the opening (S) is formed.

Thus, as shown in FIG. 5c, the main reinforcing bar 131 of the precast front wall 110 is horizontally bent downward to extend toward the bottom plate 200, thereby constructing the bottom plate 200 using a finishing form (not shown). The bottom plate concrete 210 is to be poured and the bottom plate concrete 210 is filled to the bottom of the precast front wall 110 and the rear wall 120 so that the cast iron 131 extending toward the bottom plate is embedded. do.

Next, after the bottom plate concrete is cured or continuously, the inner wall concrete 140 is poured so that the inner wall reinforcement is embedded so that the final wall structure construction can be completed.

Thus, it can be seen that the precast front wall 110 and the rear wall 120 of the present invention are to be rigid with the bottom plate 200 and to be integrated by the inner wall concrete 140 in the longitudinal direction.

Next, as shown in FIG. 5d, the final upper plate 300 is installed between the upper parts of both wall structures using the upper plate concrete or the like to enable the box structure construction.

As such, the wall structure 100 according to the present invention may be integrally formed with each other in the longitudinal direction while the walls 110 and 120 are firmly connected to the bottom plate 200, and the top plate 300 is also integrally connected with the walls 110 and 120 to be rigid. It can be seen that.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

100: wall structure
110: precast front wall
111: front panel
112: extruded rebar
111a: longitudinal internal reinforcing bars
112b: longitudinal external reinforcing bars
112c: longitudinally connecting lift bars
113: bend end
114: connecting rebar
120: precast back wall
121: back plate
122: protruding rebar
121a: longitudinal internal reinforcing bars
122b: longitudinal external reinforcing bars
122c: longitudinally connecting lift bar
123: bending end
124: connecting rebar
125: pillar support
126: coupler
127: internal connecting bars
128: longitudinal connector
130: internal wall rebar
131: cast iron
132: reinforced bar
133: stirrups
140: interior wall concrete
200: bottom plate
210: low concrete
300: top plate

Claims (8)

The protruding reinforcing bars 112 and the backing plate 121 of the precast front wall body 110 including the front plate 111 and the protruding reinforcing bars 112 protruding from the rear surface of the front plate 111 and the back plate 121. The protruding reinforcement 122 of the precast rear wall 120 including the protruding reinforcement 122 protruding from the front side is laid on the floor to face upward,
Reinforce the inner wall reinforcement 130 using the precast front walls 110 and the protruding bars 112 and 122 of the precast rear wall 120 laid on the floor,
The precast front wall 110 and the rear wall 120 are connected to each other after the precast front wall 110 is spaced above the precast front wall 110 lying on the floor so that the precast rear wall 120 is positioned. The precast front wall 110 and the rear wall 120 is raised vertically and set,
And placing the inner wall concrete 140 in a space between the front wall and the rear wall so that the protruding reinforcing bars 112 and 122 and the inner wall reinforcing bar 130 are embedded.
The front plate 111 and the rear plate 121 is made of reinforced concrete, and bent ends 113 and 123 are formed at both ends thereof so that the bent end outer surfaces are set to be in contact with each other in the longitudinal direction, and the bent ends are longitudinally Wall structure construction method using the precast front and back walls, characterized in that to be connected to each other using a directional connector (128). delete The method of claim 1,
The front and rear walls of the bent ends 113 and 123 of the front plate 111 and the rear plate 121 are connected to each other by connecting connecting bars 114 and 124 so that the front wall and the rear wall can be constrained to each other. Wall structure construction method using front and back wall. The method of claim 1,
The protruding reinforcement 112 of the front plate 111
The longitudinally inner reinforcement bars 111a extending in the longitudinal direction inside the front plate are arranged in a plurality of vertically reinforcement, and the longitudinal outer reinforcement bars 112b extending from the surface of the front plate rear surface and also extending in the longitudinal direction are disposed. And, the longitudinal connecting force including a longitudinal connecting force reinforcing bar (112c) of the longitudinal reinforcement (111a) and the longitudinal external reinforcing bars (112b) extending in the longitudinal direction so as to be connected to each other, A part of the reinforcing bar (112c) is embedded in the front plate 111 and part of the wall structure construction method using the precast front and back walls, characterized in that arranged so as to be exposed from the front plate rear surface. The method of claim 1,
Protruding reinforcement 122 of the back plate 121 is
The longitudinal internal reinforcing bars 121a extending in the longitudinal direction in the rear plate are vertically reinforced, and the longitudinal external reinforcing bars 122b extending from the surface of the front of the rear plate and also extending in the longitudinal direction are disposed. And, the longitudinal connecting force including a longitudinal connecting force reinforcement (122c) in the form of a corrugated reinforcement extending in the longitudinal direction so that the longitudinal internal force reinforcement (121a) and the longitudinal external force reinforcement (122b) is connected to each other, A portion of the reinforcing bar (122c) is embedded in the back plate 121, and part of the wall structure construction method using the precast front and back walls, characterized in that arranged so as to be exposed from the back surface. The method of claim 1,
The inner wall reinforcement 130 includes a main reinforcing bar 131, the lifting reinforcement 132 and the stirrup reinforcement 133,
Accordingly, the main reinforcing bars 131 are vertically reinforced in contact with the longitudinal connecting force reinforcing bars 112c and 122c among the protruding reinforcing bars 112 and 122 as vertical bars.
The reinforcement bar 132 is installed so that the reinforcement to extend in the longitudinal direction horizontally with respect to the main reinforcing bar 131, a plurality of spaced apart up and down,
In addition, the stirrup reinforcement 133 is a wall structure construction method using the precast front and rear walls, characterized in that the loop-shaped reinforcing bar reinforcing the horizontal reinforcement of the precast front wall 110 and the precast rear wall 120 . The method according to claim 6,
The precast rear wall 120 is formed with the pillar support portions 125 spaced apart from each other at the bottom of the rear plate, and the main reinforcing bars 131 of the front plate 111 are horizontally bent in the opening S between the pillar support portions to extend toward the bottom plate. The main reinforcing bar 131 is embedded in the bottom plate concrete 210 and the inner wall concrete 140 so that the bottom plate and the wall structure are firmly connected to each other.
An upper plate 300 is further formed on the front and rear walls, and a lower structure 200 is formed at the lower portion of the front and rear walls so that the front plate and the rear plate are rigidly connected to each other. Way. 8. The method of claim 7,
The precast front wall 110 is formed so that the height is higher than the precast rear wall 120 so that the cast steel 131 embedded in the precast front wall 110 is embedded to pour the top plate concrete to the front and rear walls The precast front wall 110 and the rear wall 120 is to be further strengthened with each other so that the upper plate 300 is further formed on the upper wall structure construction method using the precast front and rear walls.

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