KR102092558B1 - Double wall structure construction method using non-connection body steel beam and wall structure construction method therewith - Google Patents

Abstract

After setting the integral steel extending from the inside of the front wall produced by the precast method to extend to the interior of the rear wall, the back wall is manufactured by the cast-in-place concrete method, which uses an integral steel with excellent workability and workability in the production of double walls. As a method for manufacturing a double-wall structure and a construction method thereof, the double-wall structure using the integral steel is manufactured by a precast method, and a rear wall composited with and integrated with the front wall is produced by a cast-in-place concrete method.

Description

Manufacturing method and construction method of double-walled structure using integral shape steel {DOUBLE WALL STRUCTURE CONSTRUCTION METHOD USING NON-CONNECTION BODY STEEL BEAM AND WALL STRUCTURE CONSTRUCTION METHOD THEREWITH}

The present invention relates to a method for manufacturing a double-walled structure using integral steel and a construction method therefor. More specifically, after setting the integral steel extending from the inside of the front wall produced by the precast method to extend to the interior of the back wall, the back wall is manufactured by the on-site concrete construction method, so that the double wall is very excellent in workability and workability. It relates to a method of manufacturing a double wall structure using a section steel and a construction method thereof.

1 shows a conventional method for constructing a wall structure using a precast front and rear wall.

First, the precast front and back walls 10 and 20 manufactured at the factory and brought into the site are laid on the floor of the site so that the connecting rebars 14 and 24 face upward.

Next, it can be seen that the inner reinforcement walls 30: 31, 32, and 33, which were previously examined, are laid in front of the laid precast front and rear walls 10, 20.

This is to reinforce the inner wall reinforcement (30: 31,32,33) on the precast front and rear walls (10,20) erected vertically even if the height of the precast front and rear walls (10,20) exceeds only 2m. It is said that the work is very difficult.

Accordingly, the inner wall reinforcement 30 is placed on the precast front and rear walls 10 and 20 lying on the floor without reinforcing the inner wall reinforcement 30 on the precast front and rear walls 10 and 20 which are erected in a vertical state. By increasing the efficiency of the reinforcement work of the inner wall reinforcement 30, in particular to reduce the production air.

Accordingly, when the inner wall reinforcing bar 30 is reinforced to the precast front and rear walls 10 and 20, the precast rear wall 10 and 20 are laid upward on the precast front wall 10, and the connecting reinforcing bar is placed. It can be seen that (14,24) are connected to each other using a coupler and an internal connecting reinforcing bar (12).

Accordingly, the precast front wall 10 and the precast back wall 10 and 20, which are connected to each other, are vertically raised, and the precast front wall 10 and the precast back wall 20, which are connected to each other, are vertically spaced apart from each other. and,

The inner wall concrete (not shown) is placed so that the inner wall reinforcement is buried so that the final wall structure construction can be completed.

At this time, the internal reinforcing bars 30: 31, 32, 33 are auxiliary reinforcing bars for connecting the precast front and rear walls 10, 20 to each other. It was difficult to secure efficiency.

In addition, the precast rear wall (10, 20) is laid on the precast front wall (10) upwards, and for setting the wall for connecting the connecting rebars (14, 24) to each other using a coupler and an inner connecting bar (12). The equipment must be provided separately because the front and rear walls are manufactured in a precast manner without using formwork, and then they are connected by setting them up and down. Therefore, in fact, it was inevitable to require a lot of cost and reliability to manufacture and equip such wall setting equipment.

Republic of Korea Patent No. 10-1379305 (Invention name: precast front wall and precast back wall method for producing wall structures, publication date: March 28, 2014) Republic of Korea Patent No. 10-1301076 (Invention name: precast front and back wall construction method of wall structure, published date: March 28, 2014)

Accordingly, the present invention optimizes the equipment for setting the wall by manufacturing the double wall only by the precast method (the front wall is manufactured by the precast method, and the rear wall, which is integrated with the front wall and is integrated by the on-site concrete construction method), is more economical. It is a technical task to solve the production method of a double-wall structure using an integral shape steel capable of efficient and efficient precast double-wall production and construction, and the provision of the construction method.

Furthermore, the present invention can reliably secure the structural integrity of the precast double wall without causing the conduction problem due to vertical installation in the field, and optimize the cross-sections of the precast front wall and the precast back wall. Therefore, it is a technical task to solve the method of manufacturing a double-walled structure using an integral-type steel that is capable of rapid construction and providing the construction method.

In addition, it is possible to construct structures such as tunnel structures more quickly and economically by applying one side wall (front wall) to the top plate as it is, and can easily adjust the thickness of the top plate structure to selectively use it for the construction of underground structures according to the toffee. Another technical task is to provide a method for manufacturing a double-walled structure using an integral one-piece steel and its construction method.

A method for manufacturing a double-walled structure using the integral-shaped steel of the present invention for achieving the above-mentioned problems includes: (a) a T-shaped wall portion formed of a reinforcement rib formed on one side of a vertical wall portion; And from the inside of the vertical wall, protruding outward through a reinforcing rib so that the end can extend to the inside of the back wall, so that the front wall and the back wall are separated from each other and synthesized by pouring and curing the wall concrete (C1). Step of having a front wall comprising; (b) In addition to installing both sides of the front wall so that the front wall is located inside, and integral steel of the front wall, the side wall is installed so that the brackets can be detached, and the wall formwork for manufacturing the rear wall is installed on the upper surface of the bracket. Allowing support; And (c) pouring and curing the wall concrete (C1) on the upper surface of the wall formwork to form an integrally synthesized rear wall in the integral steel of the front wall. The rear wall, which is integrated with the wall, is manufactured in the form of cast-in-place concrete, and the wall formwork in step (b) is horizontally sliding and demolded by using a height adjustment device installed between the upper surface of the bracket and the bottom of the wall formwork. However, the height adjustment device is installed on an integrally shaped steel, so that a roller slidable on the upper surface of the bracket includes a body portion formed to be rotatable and an impression jack integrated on the top surface of the body, thereby operating the impression jack. The installation height of the supporting wall formwork can be adjusted, and the wall formwork uses the roller. By doing so, the wall formwork is slid horizontally so that it can be demolded while moving.

Since the front wall and the back wall are synthesized by the integral type steel in the manufacturing process, the method for manufacturing the double wall structure using the integral type steel according to the present invention and the construction method are not premised on the task of separately connecting the reinforcing bars unlike the prior art. It will solve the problem of air and structural integration.

In addition, the method for manufacturing a double-walled structure using the integral-shaped steel according to the present invention and its construction method are more structurally stable by using the integral-shaped steel for the production of a double-walled structure. It is possible to provide a wall structure manufactured using.

In addition, according to the method for manufacturing a double-walled structure using the integral-shaped steel according to the present invention and its construction method, it is very advantageous for construction of an underground structure having a large transverse separation distance, and when the traffic load is transmitted due to a small toffee due to an increase in the thickness of the upper structure. Even if it is possible, it is possible to construct a more stable underground structure.

1 is a prior art precast front and back wall wall structure construction diagram,
2A, 2B, 2C, 2D, and 2E are manufacturing flow diagrams of the double-walled structure using the integral steel of the present invention,
Figures 3a and 3b is a longitudinal connection configuration of the double-walled structure using the integral steel of the present invention,
Figure 3c is a construction application of the double-walled structure using the integral shape steel of the present invention,
4A, 4B, 4C, and 4D are flowcharts of a method for constructing a double-walled structure using an integral steel of the present invention.

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 to which the present invention pertains may easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. In addition, in order to clearly describe the present invention in the drawings, parts irrelevant to the description are omitted, and like reference numerals are assigned to similar parts throughout the specification.

Throughout the specification, when a part “includes” a certain component, it means that the component may further include other components, not to exclude other components, unless otherwise stated.

[Method for manufacturing double wall structure 100 using integral shape steel according to the present invention]

2A, 2B, 2C, 2D, and 2E show a manufacturing flow chart of the double-walled structure 100 using the integral steel of the present invention.

As shown in FIG. 2A, the integral-shaped steel 112 allows the end of the shaped steel drawn out from the inside of the front wall 110 to extend to the inside of the back wall 120, and the front wall and the back wall are formed by pouring and curing wall concrete (C1). While it is to be synthesized by the section steel, it means to eliminate the need to separately connect the section steel in synthesizing the front wall 110 and the back wall 120,

To this end, the present invention, as shown in Figure 2d, the front wall 110, the rear wall 120 is manufactured by a method of synthesizing each other using the integral steel 112 using the wall formwork 270.

That is, the front wall is manufactured in a precast manner, and the rear wall, which is synthesized and integrated with the front wall, is produced in a cast-in-place concrete method.

In the end, the present invention, unlike the prior art, the front wall 110 and the back wall 120 are each independently manufactured in a precast manner, and the inner rebars drawn out from the front wall 110 and the back wall 120 are coupled to each other, By adopting a method of connecting by welding or the like, it is possible to solve the problem of deterioration in workability and workability.

Looking specifically, the method of manufacturing the double-walled structure 100 using the integral-shaped steel 112 according to the present invention is

As shown in FIG. 2A, it can be seen that the front wall 110 is set in a precast manner so that the integral steel 112 is set upward on the floor G of the workshop. At this time, the front wall 110 is for convenience and refers to the front or back wall in the double wall structure 100.

The front wall 110 is configured to include a T-shaped wall portion 111 and an integral steel (112).

It can be seen that the T-shaped wall portion 111 is formed of a vertical wall portion 111a formed with a reinforcing rib 111b protruding as a reinforced concrete wall portion having a T-shaped cross-section. .

It can be seen that the vertical wall portion 111a is formed as a vertical plate member with a constant thickness and height.

The reinforcing ribs 111b may be formed to protrude on one side of the vertical wall portion 111a so that at least one can be formed. In the case of FIG. 2A, two are formed spaced apart from each other, so that the bending rigidity of the vertical wall portion 111a It can be seen that it is formed to extend over the entire height of the vertical wall portion (111a) to reinforce the.

Accordingly, it can be seen that when the vertical wall portion 111a is vertically installed, it also has a function to prevent conduction.

It can be seen that the integral-shaped steel 112 has one side buried inside the vertical wall portion 111a, and the other side protrudes upward to the outside via the reinforcing rib 111b.

In addition, by using the I-shaped steel as the integral-shaped steel 112, the bending strength of the vertical wall portion 111a is reinforced, and since the cross-sectional area is larger than that of the reinforcing bars, the inner main reinforcement of the vertical wall portion 111a is sufficiently functional even with a small installation number. Is done.

The other side of the integral-shaped steel 112 is formed to extend to the inner side of the rear wall 120, as shown in FIG. 2D, so that it functions sufficiently as an inner main rebar in the rear wall, and the wall on which the other side of the integral-shaped steel 112 is poured In a manner to be embedded in the concrete (C1), the rear wall 120 is synthesized from each other with the front wall 110 using the wall formwork 270.

The integral-shaped steel 112 may be continuously formed along the reinforcing rib 111b as an I-shaped steel, as shown in FIG. 3A or 3B, but in order to reduce the amount of steel, a plurality of steel can be formed to be spaced apart from each other. There is no shortage in the function of synthesizing the rear wall 120 set to face each other even when spaced up and down.

Next, the wall formwork 270 is set to synthesize the rear wall 120 integrally with each other using the front wall 110 and the integral steel 112.

To this end, as shown in Figure 2b, first, both sides of the front wall 110, both sides of the prevention zone 230 is placed first.

2B, the lower end is extended to have a constant length as a vertical wall structure having a constant height in consideration of the position of the rear wall 120 by being supported on the floor G of the manufacturing site as shown in FIG. 2B. , It is installed to support the wall formwork 270, and thus, a steel frame assembly or the like may be used so that the wall formwork 270 can be dismantled after demolding.

Therefore, when looking at the both sides of the prevention zone 230, it can be seen that the front wall 110 is located inside.

At this time, the integral wall of the front wall 110, 112, the bracket 240 is installed on both sides of the prevention zone 230 to be removable.

That is, the bracket 240 is the same height from the manufacturing floor (G) on the outer circumferential surface of both sides of the inner side (A1), integral steel 112 of the two side preventing zone 230 to support the wall formwork (270). Is set to have,

It can be seen that both inner surfaces (A1) of the two side prevention zones 230 are formed of L-shaped connecting plates contacting the outer circumferential surface of the integral-shaped steel 112 and reinforcing plates of a triangular cross-section,

The final inner side surface A1 and the integral outer surface 112 may be installed using fasteners (not shown) such as bolts so as to be separated from the outer peripheral surface of the abdomen.

Next, as shown in Figures 2b and 2c, while installing the height adjustment device 260 on the upper surface of the bracket 240 of the integral-shaped steel 112, to install the wall formwork 270 on the upper surface of the height adjustment device 260 do.

The height adjustment device 260 while horizontally sliding the wall formwork 270 while allowing the installation height of the wall formwork 270 to be adjusted, from both side prevention zones 230, the front wall 110, and the rear wall 120. It can be said to be a moving means for demoulding.

Thus, as shown in Figure 2b, the bracket 240 is formed by including a body portion 262 and the impression jack 263 integrated with the upper surface of the body portion 262 formed to be able to rotate the roller 261 is slidable on the upper surface This is done, and a plurality of wall molds 270 are installed in the extending direction on the upper surface of the bracket 240.

Accordingly, it is possible to adjust the installation height of the wall formwork 270 supported by operating the impression jack 263, and the wall formwork 270 is horizontally sliding using the roller 261 as the wall formwork 270. It can be demolded while moving.

2c and 2d, the wall formwork 270 is formed by pouring the wall concrete C1 for the rear wall 120 and synthesizing the front wall 110 and the rear wall 120 using the integral steel 112. For the purpose of making it, it is formed by setting horizontally on the upper surface of the height adjustment device 260 installed on the upper surface of the bracket 240, which is manufactured based on the cross-sectional shape of the rear wall 120.

For example, when the reinforcing bar for forming the rear wall 120 is reinforced inside the wall formwork 270 and the concrete wall C1 is poured, the rear wall 120 is synthesized by using the integral steel 112 of the front wall 110. do.

Accordingly, it can be seen that the other side of the integral-shaped steel 112 extends to the inner side of the rear wall 120, and, unlike the front wall 110 and the rear wall 120, there is no need to assemble a rebar to connect each other. Become,

The one-piece steel 112 is a main reinforcing bar, and excludes the work of reinforcing a large amount of separate main rebar between the front wall 110 and the rear wall 120,

The front wall 110 and the back wall 120 can be a very advantageous form for lifting, twisting, and buckling that may occur during the lifting and installation of the double wall 100 and secure the bending rigidity of the double wall structure 100, shear And effective resistance to pour pressure,

The space between the front wall 110 and the back wall 120 is secured sufficiently, and it also serves as a connecting steel connecting each other.

Accordingly, as shown in FIG. 2E, the bracket 240 installed on the integrally shaped steel 112 can also be separated to lift the double-walled structure 100 by the integrally shaped steel 112 located on both sides of the prevention zone 230.

At this time, it can be seen that the rear wall 120 is also formed in the same way as the front wall 110. That is, as shown in Figure 2e, the rear wall 120 is also composed of a vertical wall portion 121a formed with a reinforcing rib 121b as a reinforced concrete wall portion of a T-shaped cross section,

It can be seen that the vertical wall portion 121a is also formed as a vertical plate member with a constant thickness and height,

The reinforcing ribs 121b can also be formed to protrude on one side of the vertical wall portion 121a so that at least one can be formed, and two are also spaced apart from each other in correspondence with the front wall 110, so that the vertical wall portion 121a is formed. ) It is formed to reinforce the bending stiffness.

Accordingly, when the vertical wall portion 121a is vertically installed, it also has a function to prevent conduction. That is, it can be seen that the rear wall 120 is also integrally synthesized with the front wall 110 based on the integral steel 112.

That is, since the other side of the integral-shaped steel 112 is buried inside the vertical wall part 121a, and one side is formed to extend to the inside of the front wall 110 via the reinforcing rib 121b, it is also inside the front wall. While fully functioning as the main reinforcing bar, it is synthesized with the front wall 110.

As described above, when synthesized by the integral-shaped steel 112, it is possible to assume that the front wall 110 and the rear wall 120 are structurally integrated, so that the cross sections of the front wall 110 and the rear wall 120 are assumed. It can be more optimized, and it can greatly reduce the amount of reinforcing bar, so it can reduce its own weight, which makes economical and stable production and construction possible.

As described above, the self-weight reduction by optimizing the cross-section of the front wall 110 and the back wall 120 is very important because it affects the capacity and manufacturing cost of the equipment by connecting the front wall 110 and the back wall 120 to each other. Do.

In addition, it is possible to significantly reduce the amount of the main rebar that should be reinforced between the front wall 110 and the back wall 120 by using the integral-shaped steel 112.

[Longitudinal connection of double wall structure using integral section steel 112 according to the present invention]

3A and 3B show a longitudinal connection configuration diagram of a double-walled structure using an integral steel 112 according to the present invention.

The front wall 110 and the back wall 120 are ultimately constructed with a double wall structure 100 connected to each other in the longitudinal direction.

Accordingly, in the production, transportation, and installation, the longitudinal extension length and height (length direction) must be limited, and it is necessary to maximize the longitudinal extension length and height to reduce the number of installations.

In order to maximize the longitudinal extension length and height, the present invention is solved by minimizing the cross-sectional thickness of the front and rear walls 110 and 120 by using the integral reinforcing steel 112 that plays a role of connecting a main reinforcing bar, conduction prevention, and wall structure.

In addition, as shown in Figures 3a and 3b, the vertical wall portion (111a, 121a) of the front and rear wall (110,120) to be mechanically engaged with each other in the form of a shear key, a shear groove to be connected to each other in the longitudinal direction in the field, It can be seen that the integral-shaped steel 112 uses one side wall, such as one integrally formed with the back wall 120, drawn out from the front wall 110.

In addition, since the front wall 110 and the back wall 120 enable longitudinal connection using a shear steel 192 and a shear groove 192, the longitudinal connection portion may be a structurally weak portion. , This also has a problem that it is difficult to resist the shear force even in the integral-shaped steel 112, the present invention, in particular, as shown in Figures 3a and 3b, by placing a reinforcing bar assembly 180 for shear resistance in the space between the vertical wall portion (111a, 121a) It is synthesized with the wall composite concrete (C2) to be able to have an effect on the overall flexural stiffness and, in particular, the shear force.

The reinforcing bar assembly 180 for shear resistance can also be separated and used to be spaced apart from each other up and down. Although not shown in the integral shape steel, it is only necessary to pour wall composite concrete (C2) after fixing it with restrained reinforcing bars.

[Construction method of double wall structure using integral steel 112 of the present invention]

Figure 3b shows the application of the construction of a double-walled structure using the integral steel 112 of the present invention.

That is, the construction of the double-wall structure 100 and the bottom plate 150 using the integrally shaped steel 112 in the ground, the dual-walled structure using the integrally shaped steel 112 allows the multilayer to be formed up and down, and finally It can be seen that the double-walled structure using the integral-shaped steel 112 can be constructed in such a way that it is buried in the ground.

4A, 4B, and 4C, the flow chart of the double-walled structure 100 using the integral steel 112 is as follows.

First, as shown in FIG. 4A, the front wall 110 and the rear wall 120 viewed in FIGS. 3A and 3B are integrally synthesized and provided.

The front wall 110 and the back wall 120 are formed of T-shaped wall parts 111 and 121 and integral steel 112, respectively, and a reinforcing bar assembly 180 for shear resistance is also provided.

At this time, according to Figure 4a, the lower portion of the vertical wall portion (111a, 121a) can be seen that the bottom plate connecting rebar 190 can be formed to extend horizontally through the lower opening (S) for the construction of the bottom plate 150. have.

At this time, as shown in Figures 3a and 3b, the first and the front wall and the back wall (110,120) side of the other front and back wall (110,120) is connected in the longitudinal direction.

Accordingly, as shown in FIGS. 4B and 4C, the wall concrete (C1) and the bottom concrete (C3) are poured together, or the wall concrete (C1) is first poured, and then the bottom concrete (C3) is poured and then the bottom plate connecting reinforcement (190). ) Is installed so that the bottom plate 150, both the front wall 110 and the rear wall 120 can be structurally integrated.

According to FIGS. 4B and 4C, it can be seen that the top plate structure 300 may be used in the form of a cross-section such as front or rear walls 110 and 120.

That is, it can be seen that the top plate structure 300 also includes a T-shaped wall portion 311 and an integral-shaped steel 312, and it can be seen that the bottom surfaces of both ends are constructed to be mounted on the top surfaces of the front and back walls 110 and 120. have.

When the upper plate structure 300 including the T-shaped wall portion 311 and the integral type steel 312 is used, it is possible to secure bending rigidity and shear rigidity, so the upper plate structure 300 having a long extension in the transverse direction is used. Even if it is very advantageous for the self-weight and load resistance, the top plate structure 300 can be used as it is for the front or rear walls 110, 120, so it is very advantageous for the production of formwork.

At this time, the integral-shaped steel 312 is disposed to be exposed to the upper part, so that the composite performance is sufficiently secured when the top plate concrete (C4) is placed, and the flexural rigidity is secured by the T-shaped wall part 311 and in the longitudinal direction. You can use a method such as setting to contact each other.

Furthermore, referring to FIGS. 4B and 4C, the upper and lower walls are spaced apart from each other so that the cross-sectional heights of the outer front and rear walls 110 and 120 are formed to be larger, and used as a side formwork in the construction of the top plate structure 300. It is possible to sufficiently secure the construction and structural resistance performance (for example, the thickness of the top plate structure can be 3-4 m) by forming a support wall against the thickness of the structure.

In this case, referring to FIGS. 4B and 4C, the reinforcement ribs of the vertical wall portion may extend to the upper surface of the vertical wall portion in the T-shaped wall portion according to the cross-sectional heights of the outer front and back walls 110 and 120, but not shown And it does not matter even if it matches the height of the cross-section of the back wall (110,120).

As shown in FIG. 4D, after constructing the top plate structure 300 so as to be placed on the top surfaces of both the front and back walls 110 and 120, the front and back walls 110 and 120, and the top plate structure 300 by pouring the final top plate concrete (C4) ) Are synthesized and completed.

The above description of the present invention is for illustration only, and a person having ordinary knowledge in the technical field to which the present invention pertains can 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 restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the above detailed description, and it should be interpreted that all changes or modified forms derived from the meaning and scope of the claims and equivalent concepts thereof are included in the scope of the present invention. do.

100: double wall structure 110: front wall
111: T-shaped wall portion 111a: vertical wall portion
111b: Reinforcement rib 112: Integral section steel
120: back wall 121: T-shaped wall part
150: bottom plate 180: rebar assembly for shear resistance
190: bottom plate reinforcing bar 230: both sides preventive zone
240: bracket 260: height adjustment device
261: roller 262: torso
263: Impression Jack 270: Wall formwork
300: top structure 311: T-shaped wall portion
312: Integral section steel
C1: wall concrete, C2: wall composite
C3: Bottom plate concrete C4: Top plate concrete

Claims (7)

(a) a vertical wall portion 111a, a T-shaped wall portion 111 formed of a reinforcing rib 111b formed on one side surface; And the front wall and the back wall are spaced apart from each other by pouring and curing the wall concrete C1 by protruding from the inside of the vertical wall part to the outside through a reinforcing rib so that the end can extend to the inside of the back wall 120. Comprising the step of providing a front wall 110 including;
(b) The bracket 240 is detachable to the integral steel 112 of the front wall 110 and the two side prevention zones 230, as well as the installation of both side prevention zones 230 such that the front wall 110 is located inside. A step of installing a wall formwork 270 for manufacturing the rear wall 120 on the upper surface of the bracket 240 so as to be supported so as to be supported; And
(c) pouring and curing the wall concrete (C1) on the upper surface of the wall formwork (270) to form an integrally synthesized rear wall (120) on the integral steel (112) of the front wall (110); including ,
The front wall 110 is manufactured in a precast manner, and the rear wall 120, which is synthesized and integrated with the front wall, is manufactured in a cast-in-place concrete manner.
The wall formwork 270 of step (b) is horizontally sliding the wall formwork 270 using the height adjustment device 260 installed between the bracket 240 and the bottom surface of the wall formwork 270 so as to be demolded, The height adjustment device 260 is integrated in the upper surface of the body portion 262 and the body portion 262 formed so that the sliding roller 261 is rotatable on the upper surface of the bracket 240 installed on the integral-shaped steel 112. The impression jack 263 is formed to be formed so that the installation height of the wall formwork 270 that is supported by operating the impression jack 263 can be adjusted, and the wall formwork 270 is attached to the roller 261. A method for manufacturing a double-walled structure using integral steel that allows the wall formwork 270 to slide horizontally and be demolded while moving. According to claim 1,
The double-walled structure 100 using the integral-shaped steel manufactured by the step (c) is lifted and set vertically, and between the vertical wall portions 111a and 121a of the front wall 110 and the rear wall 120. Placing a reinforcing bar assembly 180 for shear resistance in a space; And pouring the wall composite concrete (C2) so that the integral steels 112 and the reinforcing bar assembly 180 for shear resistance are buried inside the front wall 110 and the back wall 120 so as to be integrated with each other. Method of manufacturing a double-walled structure using an integral sectional steel. delete A double-walled structure using an integrally shaped steel manufactured according to claim 1 or 2. (a) providing a double-walled structure 100 using integrally shaped steel according to claim 1;
(b) lifting the double wall structure 100 using the integral steel and setting it vertically, for shear resistance in the space between the vertical wall portions 111a, 121a of the front wall 110 and the rear wall 120 Placing a reinforcing bar assembly 180; And
(c) pouring the wall composite concrete C2 so that the integral steels 112 and the reinforcing bar assembly 180 for shear resistance are buried inside the front wall 110 and the back wall 120 so as to be integrated with each other; And
(d) The lower part of the front wall 110 and the back wall 120 is opened, and the bottom plate connecting reinforcing bar 190 is bent between the front wall 110 and the back wall 120 and bent at the opened lower opening S. The bottom wall 120 is constructed so that the bottom plate connecting reinforcing bar 190 penetrates, so that the bottom plate concrete C3 is poured to construct the bottom plate 150 so that the bottom plate connecting reinforcing bar 190 is buried. A method of constructing a double-walled structure using an integrally shaped steel comprising; The method of claim 5,
After the step (d), the step of constructing the structure by constructing the top plate structure 300 between the upper end of the double wall structure 100 using the integral shape steel; further comprising; the top plate structure 300 is a T-shaped wall part It is configured to include (311) and one-piece steel 312, so that the bottom surfaces at both ends are constructed to be placed on the top surfaces of the front and back walls (110, 120), but the one-piece steel 312 is disposed to protrude upward and the top plate concrete ( C4) A method of constructing a double-walled structure using integral steel to be constructed. The method of claim 5,
The wall formwork 270 of step (a) is to be demolded by sliding the wall formwork 270 horizontally using a height adjustment device 260 installed between the upper surface of the bracket 240 and the bottom surface of the wall formwork 270, The height adjustment device 260
The bracket 240 so that the roller 261 slidable on the upper surface includes a body portion 262 formed to be rotatable and an impression jack 263 integrated with the upper surface of the body portion 262, so that the impression jack It is possible to adjust the installation height of the wall formwork 270 that is supported by operating 263, and the wall formwork 270 is horizontally sliding and moved by using the roller 261 to move the wall formwork 270. A method of constructing a double-walled structure using a one-piece steel to make it possible.

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