JP7116575B2 - Building construction method - Google Patents

Description

The present invention relates to a building construction method for constructing a building using a construction machine such as a crane.

2. Description of the Related Art Construction machines such as cranes are used to construct buildings such as houses. For example, Patent Literature 1 discloses that a crane is installed outside the construction area of a building to transport a framework and building materials.

JP-A-9-317185

By the way, when building a house in an urban area, it may not be possible to secure a space for installing a crane on the construction site of the house. In such a case, the crane is installed on the road facing the construction site, but the narrow road needs to be closed to traffic, and it may not be possible to install the crane for a long period of time. Therefore, even in an environment where it is difficult to install construction machines outside the building construction area for a long period of time, there is a demand for a construction method that can shorten the construction period by efficiently using construction machines.

The present invention has been made in view of the above problems, and its object is to efficiently perform building construction work even in an environment where it is difficult to install construction machines outside the building construction area for a long period of time. To provide a building construction method capable of shortening the construction period.

According to the building construction method according to the present invention, a building construction method for constructing a building includes a step of moving a self-propelled construction machine to the inside of a foundation forming area for forming the foundation of the building. a step of assembling a skeleton of the building in the foundation forming area using the construction machine; a first installation step of installing an exterior wall panel on two side portions; a step of moving the construction machine from the first side portion to outside the foundation forming area after installing the exterior wall panel on the second side portion; and a second installation step of installing an outer wall panel on the first side portion, wherein the second installation step is a step of installing a first horizontal member extending horizontally below the first side portion. a step of attaching the outer wall panel for the first floor to the first floor portion of the first side portion; a step of attaching the first horizontal member to the outer wall panel for the first floor; and a rising portion of the foundation of the first side portion. and a fixing step of fixing the first floor outer wall panel to the rising portion of the foundation of the first side portion, and attaching the first floor outer wall panel to the first side portion wherein the outer wall panel for the first floor is attached to the beams constituting the frame, and in the step of fixing, the first horizontal member is removed and then the rising portion and the outer wall panel for the first floor are fixed resolved.
By doing this, even in environments where it is difficult to install construction machinery outside the building construction area for a long period of time, it is possible to place construction machinery inside the construction area and install most of the building frame and exterior wall panels. becomes possible. In addition, it is possible to efficiently install the exterior wall panel on the first side portion where the construction machine is placed outside the foundation forming area of the building.
In addition, by attaching the first horizontal member to the outer wall panel for the first floor, the position of the outer wall panel for the first floor can be restrained, so that the outer wall panel for the first floor and the rising portion of the foundation can be easily fixed. be able to.
That is, according to the building construction method described above, it is possible to improve the efficiency of building construction work and shorten the construction period even in an environment where it is difficult to install construction machinery outside the building construction area for a long period of time. .

In the building construction method described above, the outer wall panel for the first floor is attached to the first floor portion of the first side portion in a suspended state, and in the forming step, while the outer wall panel for the first floor is suspended, It is preferable to form a rising portion of the base of the first side portion.
By doing so, the rising portion of the foundation can be formed while the outer wall panel for the first floor is suspended from the frame. Therefore, the position of the outer wall panel for the first floor and the height of the rising portion of the foundation can be easily matched.

In the building construction method described above, the outer wall panel for the first floor has an anchor member provided at a lower end portion, and in the fixing step, the rising portion of the foundation of the first side portion and the anchor member are fixed. good.
By doing so, it is possible to position the anchor member of the outer wall panel for the first floor by the first horizontal member. Thereby, the vertical position of the outer wall panel for the first floor can be appropriately set.

In the building construction method described above, the anchor member may have a position adjusting portion for vertically adjusting a mounting position to the outer wall panel for the first floor.
By doing so, it is possible to easily adjust the anchor member so that it is disposed at a proper position.

In the building construction method described above, the anchor member has a through hole through which an anchor bolt extending upward from the foundation of the first side portion is inserted, and in the second installation step, the anchor member is inserted through the through hole. It is preferable to include a step of connecting the anchor bolt and the first horizontal member with a connecting member.
By doing so, the outer wall panel for the first floor can be hung at an appropriate position with respect to the foundation.

In the building construction method described above, the second installation step further includes a step of installing a second horizontal member extending horizontally above the first horizontal member on the first side surface, The outer wall panel for the first floor preferably has a plurality of panel units arranged horizontally and attached to the second horizontal member.
By doing so, it becomes easier to adjust the horizontal joint width of the outer wall panel with the second horizontal member.

In the building construction method described above, in the forming step, it is preferable to further form an earthen floor by placing concrete in the installation area where the construction machine was installed in the foundation formation area.
By doing so, the rising portion of the foundation and the dirt floor can be formed in parallel. This makes it possible to further shorten the construction period.

ADVANTAGE OF THE INVENTION According to this invention, even under the environment where it is difficult to install a construction machine outside the construction area of a building for a long period of time, construction work of a building can be made efficient and a construction period can be shortened.

FIG. 4 is a diagram schematically showing a state immediately before carrying a crane into a foundation forming area of a building; FIG. 4 is a diagram schematically showing a state in which a building skeleton is assembled using a crane carried into a foundation formation area of a building. FIG. 3 is a front view corresponding to FIG. 2; It is a figure which shows the state which extended the jib of the crane. FIG. 4 is a side view corresponding to FIG. 3; It is a figure which shows typically the state which attached the 2nd outer wall panel to the 2nd side part of the frame|body. FIG. 4 is a diagram schematically showing a state in which the crane is carried out from the foundation forming area of the building; FIG. 5 is a diagram schematically showing a state in which the first outer wall panel is attached to the first side surface portion using a crane carried out from the foundation forming area of the building; It is a figure which shows the state which attached the 1st outer wall panel to the 2nd floor and the 3rd floor of a 1st side part. It is a figure which shows the state which hung the 1st outer wall panel on the 1st floor of a 1st side part. It is the figure which looked at the state which hung the outer wall panel for the first floor from the indoor side. It is a figure which shows the structure of the vicinity of a 1st horizontal member. It is a figure which shows the structure of the vicinity of an anchor member. It is a figure which shows the state which poured the rising part of the foundation. It is a figure which shows the state which fixed the anchor member of the outer wall panel for the first floor to the rising part of a foundation. It is a figure which shows the state which fixed the 1st outer wall panel suspended on the 1st floor of the 1st side part to the rising part.

<Construction Method for Building 1>
Hereinafter, a construction method (building construction method) for a building 1 according to an embodiment of the present invention (hereinafter referred to as the present embodiment) will be described with reference to FIGS. 1 to 16. FIG. The building 1 to be described below will be described as an example of a multi-story house, but the building 1 is not limited to a house, and the building 1 is not limited to a multi-story building and may be a one-story building.
The embodiments described below are merely examples for facilitating understanding of the present invention, and do not limit the present invention. That is, the shape, size, arrangement, etc. of the members described below can be changed and improved without departing from the scope of the present invention, and the present invention includes equivalents thereof.

<Formation of foundation 2>
As shown in FIG. 1, in a construction area A a foundation 2 of a building 1 is formed. A region where the foundation 2 is formed in the construction area A is defined as a foundation formation region 4 . In the present embodiment, an installation area 5 for installing a crane 50 as a construction machine is defined as an area within the foundation 2 that can be entered from the entrance/exit 2-1 near the front road R. For this reason, at the initial stage, the entrance/exit portion 2-1 of the foundation 2 is not formed as a raised portion of the foundation.

Further, as shown in FIG. 1, concrete is placed in the area inside the foundation 2 that does not face the entrance/exit 2-1 to form the first dirt floor 3A and the second dirt floor 3B. Form. On the other hand, in the stage shown in FIG. 1, concrete is not placed in the installation area 5 .
In the following description, the direction orthogonal to the extension direction of the front road R in the construction area A is defined as the X direction, and the direction orthogonal to the X direction is defined as the Y direction (that is, the extension direction of the front road R). Then, let the vertical direction be the Z direction.

<Carry-in and installation process of the crane 50>
Next, as shown in FIG. 1, the crane 50 is carried in from the front road R into the foundation formation area 4 (more specifically, the installation area 5). Specifically, a protective plate 52 such as a metal plate is installed on the entrance/exit portion 2-1 of the foundation 2, and the crane 50 is moved from the front road R through the protective plate 52 to the installation area 5.
In this embodiment, the crane 50 is a self-propelled crane, and can be moved by operating the crane 50 . Moreover, the crane 50 has a jib 51 capable of turning, extending, and suspending and hoisting a member, thereby making it possible to transport various building materials.
After moving the crane 50 to the installation area 5, the legs of the crane 50 are fixed, thereby completing the installation process of the crane 50. - 特許庁

<Assembly process of frame 6>
Next, as shown in FIGS. 2 to 5, a crane 50 installed in the installation area 5 is used to build the frame 6 such as the pillars 6A and the beams 6B on the foundation 2. As shown in FIGS.
Specifically, as shown in FIGS. 3 to 5, the building 1 according to this embodiment is a three-storied building, a pillar 6A is fixed on the foundation 2, and a beam 6B is spanned between the pillars 6A. delivered and fixed.
Here, as shown in FIG. 4, the jib 51 of the crane 50 can be extended to a length exceeding the top floor beam 6B.
In this manner, by using the crane 50 installed in the installation area 5 to transport the building materials including the pillars 6A and the beams 6B, the building frame 6 can be efficiently assembled.

Here, in the skeleton 6 of the building 1, the portion corresponding to the upper part of the entrance/exit portion 2-1 of the foundation 2 is called a first side portion 11, and the other portion is called a second side portion 12. As shown in FIG.
That is, the first side portion 11 corresponds to a side portion of the frame 6 when the crane 50 is carried out to the front road R. As shown in FIG. In other words, the first side portion 11 is a portion facing the front road R, and the second side portion 12 is a portion not facing the front road R.
The beam 6B-1 arranged between the first floor portion 11-1 corresponding to the first floor portion of the first side portion 11 and the second floor portion 11-2 corresponding to the second floor portion is used when the crane 50 is carried out. Temporarily fix it higher than the original installation position so that it does not interfere with the

<First installation process>
Next, as shown in FIG. 6 , the outer wall panel 20 is attached to the second side portion 12 using a crane 50 installed in the installation area 5 . The outer wall panel 20 attached to the second side surface portion 12 is referred to as a second outer wall panel 20B. The step of installing the second outer wall panel 20B on the second side surface portion 12 is called a first installation step.
In the first installation step, the second outer wall panel 20B is suspended and transported by the crane 50, and the second outer wall panel 20B is fixed to each portion of the second side surface portion 12 by a worker.

<Unloading process of crane 50>
Next, as shown in FIG. 7, the crane 50 is carried out from the installation area 5 to the front road R. Specifically, the crane 50 is moved from the first floor portion 11-1 of the first side portion 11 toward the front road R while the jib 51 of the crane 50 is shortened. At this time, by covering the entrance/exit part 2-1 with the protective plate 52, damage to the entrance/exit part 2-1 is suppressed.
After moving the crane 50 to the front road R, the crane 50 is installed alongside the construction area A.
Then, the beam 6B-1 provided between the first floor section 11-1 and the second floor section 11-2 is moved to its original mounting position and then fixed.

<Second installation process>
Next, as shown in FIG. 8, the outer wall panel 20 is attached to the first side surface portion 11 using a crane 50 installed on the front road R. Then, as shown in FIG. In addition, the outer wall panel 20 attached to the 1st side part 11 is called the 1st outer wall panel 20A. The process of installing the first outer wall panel 20A on the first side surface portion 11 is called a second installation process.
Hereinafter, the details of the mounting process (second mounting process) of the first outer wall panel 20A to the first side surface portion 11 will be described with reference to FIGS. 9 to 16 .

<Installation of second floor outer wall panel 20A-2 and third floor outer wall panel 20A-3>
As shown in FIG. 9, a crane 50 is used to attach the second floor outer wall panel 20A-2 and the third floor outer wall panel 20A-2 to the second floor portion 11-2 and the third floor portion 11-3 of the first side portion 11, respectively. Install 20A-3.
Specifically, the third-floor outer wall panel 20A-3 is lifted by the crane 50 and attached to the third-floor section 11-3 of the frame 6. As shown in FIG.
Then, the second-floor outer wall panel 20A-2, which has been made into panels, is lifted by the crane 50 and attached to the second-floor section 11-2 of the frame 6.
When attaching the third-floor outer wall panel 20A-3 and the second-floor outer wall panel 20A-2, the panel unit 40 may be attached to the third-floor section 11-3 and the second-floor section 11-2.
A horizontal gap between the panel units 40 is a vertical joint 41 , and a vertical gap between the panel units 40 is a horizontal joint 42 .

<Suspension process of first floor outer wall panel 20A-1>
Here, the configuration of the outer wall panel 20A-1 for the first floor will be described. The outer wall panel 20A-1 for the first floor includes a plurality of panel units 40 arranged horizontally. In this embodiment, the outer wall panel 20A-1 for the first floor is configured by arranging four panel units 40 horizontally.
An anchor member 21 is attached to the lower end portion of the panel unit 40 . A plurality of anchor members 21 are provided for the outer wall panel 20A-1 for the first floor.

Here, the configuration of the anchor member 21 will be described. As shown in FIG. 13, the anchor member 21 includes a bottom wall portion 21A, a vertical wall portion 21B, and left and right side wall portions 21C.

The bottom wall portion 21A has a horizontal plate-like portion, and a through hole 21Aa is formed in the center. An anchor bolt 35 extending upward from the base frame portion 2A is passed through the through hole 21Aa.
The standing wall portion 21B is a plate-like portion that stands up vertically from the bottom wall portion 21A and is attached to the outer wall panel 20A-1 for the first floor.
In addition, the vertical wall portion 21B is provided with a position adjusting portion 22 capable of vertically adjusting the mounting position with respect to the outer wall panel 20A-1 for the first floor.
Specifically, the position adjusting portion 22 includes a pair of left and right elongated holes 22A and screws 22B that are passed through the elongated holes 22A. By changing the position of the screw 22B in the elongated hole 22A, the vertical mounting position of the anchor member 21 to the outer wall panel 20A-1 for the first floor can be adjusted.
The side wall portion 21C is a substantially triangular plate portion connected to the bottom wall portion 21A and the vertical wall portion 21B. Thus, the rigidity of the anchor member 21 is improved by connecting the bottom wall portion 21A and the vertical wall portion 21B with the side wall portion 21C.

Then, as shown in FIGS. 10 and 11, the first floor outer wall panel 20A-1 is hung from the first floor section 11-1. Specifically, each panel unit 40 of the outer wall panel 20A-1 for the first floor is suspended from the beam 6B by the suspension member 43. As shown in FIG.
Here, the hanging member 43 is a metal fitting attached to each of the flange of the beam 6B and the panel unit 40 to hang the panel unit 40 from the beam 6B.

<Mounting process of the first horizontal member 31>
Next, as shown in FIGS. 10 and 11, the first horizontal member 31 is attached to the lower portion 11-1a of the first floor portion 11-1 of the frame 6. Next, as shown in FIGS. Note that the lower portion 11-1a of the first floor portion 11-1 is a range within which the anchor bolts 35 of the foundation frame portion 2A reach in the first floor portion 11-1.
Specifically, the first horizontal member 31 is attached to the pillars 6A on both sides of the first floor section 11-1 by constructing the first horizontal member 31 and fastening the first horizontal member 31 with bolts. Moreover, the first horizontal member 31 may be attached by fixing the first horizontal member 31 to an anchor bolt 35 rising upward from the base frame portion 2A.

Here, as shown in FIGS. 11 to 13, the first horizontal member 31 is a metal member extending in the Y direction and having an L-shaped cross section.
Specifically, the first horizontal member 31 has a mounting portion 31A to which the first floor outer wall panel 20A-1 is mounted, and a flange portion 31B perpendicular to the mounting portion 31A and extending into the room.

A plurality of bolt fastening holes 31Aa are formed in the mounting portion 31A, and bolts extending from the outer wall panel 20A-1 for the first floor to the interior side are passed through the bolt fastening holes 31Aa and fastened with nuts 61. As shown in FIG. As a result, the first horizontal member 31 is attached to the outer wall panel 20A-1 for the first floor. By attaching the first horizontal member 31 to the outer wall panel 20A-1 for the first floor in this way, it is possible to constrain the position of the outer wall panel 20A-1 for the first floor, particularly the position in the X direction.

A plurality of bolt insertion holes 31Ba are formed in the flange portion 31B. A central bolt 36 extending upward from the center of the base frame portion 2A of the entrance/exit portion 2-1 in the Y direction is passed through the bolt insertion hole 31Ba provided in the central portion of the flange portion 31B. As a result, the first horizontal member 31 is positioned in the X direction and the Y direction.
The connecting member 33 is passed through the bolt insertion hole 31Ba from above, and the lower end of the connecting member 33 and the upper end of the anchor bolt 35 are connected by the connecting hardware 63 . By doing so, the first horizontal member 31, the anchor member 21 and the anchor bolt 35 are fixed to each other.

<Mounting process of the second horizontal member 32>
Next, as shown in FIGS. 10 and 11, the second horizontal member 32 is attached to the upper portion 11-1b of the first floor portion 11-1 of the frame 6. Next, as shown in FIGS. The upper portion 11-1b of the first floor portion 11-1 is closer to the beam 6B than the lower portion 11-1a.
Specifically, the second horizontal members 32 are attached to the pillars 6A on both sides of the first floor section 11-1 by constructing the second horizontal members 32 and fastening them with bolts. As a result, the second horizontal member 32 is attached to the outer wall panel 20A-1 for the first floor.

Here, as shown in FIGS. 11 to 13, the second horizontal member 32 is a metal member extending in the Y direction and having an L-shaped cross section.
Specifically, the second horizontal member 32 has a mounting portion 32A to which the first floor outer wall panel 20A-1 is mounted, and a flange portion 32B perpendicular to the mounting portion 32A and extending into the room.

A plurality of bolt fastening holes 32Aa are formed in the mounting portion 32A, and bolts extending from the outer wall panel 20A-1 for the first floor to the interior side are passed through the bolt fastening holes 32Aa and fastened with nuts. As a result, the first floor outer wall panel 20A-1 and the second horizontal member 32 are fixed.
By adjusting the mounting position of the panel unit 40 with respect to the mounting portion 32A, the width of the vertical joint 41 of the panel unit 40 can be adjusted.

<Process of forming rising portion 2C of foundation 2 and third earth floor 3C>
Next, as shown in FIG. 13, a formwork member 60 is arranged on the base frame portion 2A to form a concrete mold for forming the rising portion 2C. Then, concrete is poured into the mold to form the rising portion 2C.
As shown in FIG. 14, the rising portion 2C is formed up to a height reaching the bottom wall portion 21A of the anchor member 21. As shown in FIG.
Here, after the reinforcement arrangement 37 is installed also in the installation area 5, concrete is poured to form the third dirt floor 3C.
In this way, by simultaneously forming the rising portion 2C and the third dirt floor 3C, the waiting time until the concrete hardens can be shortened.

<Fixing process of anchor member 21 and rising portion 2C of outer wall panel 20A-1 for first floor>
Next, after the rising portion 2C hardens, the first horizontal member 31 and the second horizontal member 32 are removed. Then, as shown in FIG. 15, mortar 64 is filled between the anchor member 21 of the outer wall panel 20A-1 for the first floor and the rising portion 2C, and after the mortar 64 is hardened, nuts 62 are tightened to the anchor bolts 35. to fix it. As a result, as shown in FIG. 16, the anchor member 21 of the outer wall panel 20A-1 for the first floor and the rising portion 2C are fixed.

According to the construction method of the building 1 described above, the crane 50 is carried into the foundation forming area 4 that forms the foundation 2 of the building 1, and the crane 50 is used to perform the installation work of the frame 6 and the outer wall panels 20. can. Further, with regard to the installation area 5 of the crane 50 and the first side surface portion 11 for carrying out the crane 50, the work of attaching the first outer wall panel 20A can be efficiently carried out after the crane 50 is carried out.
By doing so, even under conditions where it is difficult to install the crane 50 on the front road R for a long period of time, the crane 50 can be used efficiently to save labor in construction.
Further, when the first floor outer wall panel 20A-1 is attached to the first floor portion 11-1 of the first side surface portion 11, the first floor outer wall panel 20A-1 is used by using the first horizontal member 31 and the second horizontal member 32. The position of panel 20A-1 can be constrained. As a result, the raised portion 2C of the foundation 2 can be formed while the position of the outer wall panel 20A-1 for the first floor is fixed. Therefore, it is possible to improve workability of construction for fixing the rising portion 2C of the foundation 2 and the outer wall panel 20A-1 for the first floor.

<Summary>
The main features of the building construction method according to this embodiment described above are as follows.

[1] The building construction method according to the present embodiment includes steps of moving a self-propelled crane 50 (construction machine) inside a foundation forming area 4 that forms a foundation 2 of a building 1, and using the crane 50, A step of assembling the skeleton 6 of the building 1 in the foundation forming area 4, and using the crane 50, the outer wall panel 20 for the second side portion 12 other than the first side portion 11 that is the unloading side of the crane 50 in the skeleton 6 of the building 1. After installing the outer wall panel 20 on the second side portion 12, moving the crane 50 from the first side portion 11 to the outside of the foundation forming area 4, and on the first side portion 11 and a second installation step of installing the exterior wall panel 20 . The second installation step includes a step of attaching the first horizontal member 31 extending horizontally to the first side portion 11, and a step of attaching the first floor outer wall panel 20A-1 to the first floor portion of the first side portion 11. Then, a step of attaching the first horizontal member 31 to the outer wall panel 20A-1 for the first floor, a forming step of forming the rising portion 2C of the foundation 2 of the first side portion 11, and a step of forming the foundation 2 of the first side portion 11 and a fixing step of fixing the rising portion 2C and the outer wall panel 20A-1 for the first floor.
By doing so, even in an environment where it is difficult to install the crane 50 outside the construction area A of the building 1 for a long period of time, the crane 50 can be placed in the construction area A to cover most of the frame 6 of the building 1. , the installation of the outer wall panel 20 becomes possible. Further, it is possible to efficiently install the outer wall panel 20 on the first side surface portion 11 from which the crane 50 is moved outside the foundation forming area 4 of the building 1 .
In addition, by attaching the first horizontal member 31 to the first floor outer wall panel 20A-1, the position of the first floor outer wall panel 20A-1 can be constrained. 2 can be easily fixed to the rising portion 2C.
That is, according to the building construction method described above, even in an environment where it is difficult to install the crane 50 outside the construction area A of the building 1 for a long period of time, the construction work of the building 1 can be made efficient and the construction period can be shortened. It becomes possible.

[2] In the building construction method described above, the first floor outer wall panel 20A-1 is attached to the first floor portion of the first side surface portion 11 in a suspended state, and in the forming process, the first floor outer wall panel 20A-1 is suspended, the rising portion 2C of the base 2 of the first side portion 11 is formed.
By doing so, the rising portion 2C of the foundation 2 can be formed while the outer wall panel 20A-1 for the first floor is suspended from the frame 6. Therefore, the position of the outer wall panel 20A-1 for the first floor and the height of the rising portion 2C of the foundation 2 can be easily matched.

[3] In the building construction method described above, the outer wall panel 20A-1 for the first floor has an anchor member 21 provided at the lower end, and in the fixing step, the rising portion 2C of the foundation 2 of the first side portion 11 and the The anchor member 21 is fixed.
By doing so, the anchor member 21 of the outer wall panel 20A-1 for the first floor can be positioned by the first horizontal member 31. As shown in FIG. As a result, the vertical position of the outer wall panel 20A-1 for the first floor can be properly set.

[4] In the building construction method described above, the anchor member 21 has a position adjusting portion 22 for adjusting the mounting position to the outer wall panel 20A-1 for the first floor vertically.
By doing so, it is possible to easily adjust the anchor member 21 so that it is arranged at a proper position.

[5] In the above building construction method, the anchor member 21 has a through hole 21Aa through which the anchor bolt 35 extending upward from the foundation 2 of the first side surface 11 is inserted, and the second installation step includes A step of connecting the anchor bolt 35 inserted through the hole 21</b>Aa and the first horizontal member 31 with the connecting member 33 is included.
By doing so, the outer wall panel 20A-1 for the first floor can be hung at an appropriate position with respect to the foundation 2.

[6] In the building construction method described above, the second installation step further includes a step of installing the second horizontal member 32 extending in the horizontal direction above the first horizontal member 31 on the first side surface portion 11. The first floor outer wall panel 20A-1 has a plurality of panel units 40 that are horizontally arranged and attached to the second horizontal member 32. As shown in FIG.
This makes it easier to adjust the horizontal joint width of the outer wall panel 20 with the second horizontal member 32 .

[7] In the building construction method described above, in the formation step, concrete is placed in the installation area 5 where the crane 50 was installed in the foundation formation area 4 to further form the dirt floor 3 .
By doing so, the rising portion 2C of the foundation 2 and the dirt floor 3 can be formed in parallel. This makes it possible to further shorten the construction period.

<Other embodiments>
The invention is not limited to the embodiments described above.
For example, the first horizontal member 31 and the second horizontal member 32 may be attached after the panel unit 40 of the outer wall panel 20A-1 for the first floor is suspended on the first floor 11-1, or the first horizontal member 32 may be attached. The panel unit 40 may be hung after the members 31 and the second horizontal members 32 are attached.
Also, the panel unit 40 may be suspended from the first floor section 11-1 between the mounting of the first horizontal member 31 and the mounting of the second horizontal member 32. FIG.
The construction device used to construct the building 1 is not limited to the crane 50, and may be a 3D printer or the like.
Further, another process may be included in the process shown in FIGS.

Further, in the above embodiment, the rising portion 2C of the foundation 2 is formed in a state in which the outer wall panel 20A-1 for the first floor is suspended from the first floor portion 11-1 of the frame 6, but this is not the only option. can't For example, after forming the rising portion 2C of the foundation 2, the outer wall panel 20A-1 for the first floor is hung from the first floor portion 11-1 of the frame 6, and the outer wall panel 20A-1 for the first floor is the rising portion of the foundation 2. 2C may be fixed. In this case, the height of the rising portion 2C of the foundation 2 may be set in advance. Further, after the outer wall panel 20A-1 for the first floor is once attached to the first floor portion 11-1 of the frame 6 and the height of the rising portion 2C of the foundation 2 is determined, the panel unit 40 is removed and the rising portion 2C of the foundation 2 is removed. may be formed.

1 Building 2 Foundation 2A Foundation frame 2B Column support 2C Rise 2-1 Entrance 3 Dirt floor 3A First dirt floor 3B Second dirt floor 3C Third dirt floor 4 Foundation formation area 5 Installation area 6 Frame 6A Column 6B Beam 6B-1 Beam 11 First side wall 11-1 First floor 11-1a Lower part 11-1b Upper part 11-2 Second floor 11-3 Third floor 12 Second side wall 20 Exterior wall panel 20A First exterior wall panel 20A-1 For first floor Exterior Wall Panel 20A-2 Second Floor Exterior Wall Panel 20A-3 Third Floor Exterior Wall Panel 20B Second Exterior Wall Panel 21 Anchor Member 21A Bottom Wall Part 21Aa Through Hole 21B Standing Wall Part 21C Side Wall Part 22 Position Adjusting Part 22A Long Hole 22B Screw 23 Nut 31 First horizontal member 31A Mounting portion 31Aa Bolt fastening hole 31B Flange portion 31Ba Bolt insertion hole 32 Second horizontal member 32A Mounting portion 32Aa Bolt fastening hole 32B Flange portion 33 Connecting member 35 Anchor bolt 36 Center bolt 37 Rebar arrangement 40 Panel unit 41 Vertical joint 42 Horizontal joint 43 Suspension member 50 Crane (construction machine)
51 jib 52 protective plate 60 formwork member 61 nut 62 nut 63 connection hardware 64 mortar A construction area R front road

Claims (7)

A building construction method for constructing a building,
moving a self-propelled construction machine inside a foundation forming area that forms the foundation of the building;
a step of assembling the skeleton of the building in the foundation forming area using the construction machine;
a first installation step of using the construction machine to install an outer wall panel on a second side surface portion of the frame of the building other than the first side surface portion on which the construction machine is unloaded;
a step of moving the construction machine out of the foundation forming area from the first side surface after installing the outer wall panel on the second side surface;
a second installation step of installing an outer wall panel on the first side portion,
The second installation step includes:
A step of attaching a first horizontal member extending horizontally to the lower side of the first side surface;
attaching a first floor exterior wall panel to the first floor portion of the first side portion;
a step of attaching the first horizontal member to the outer wall panel for the first floor;
a forming step of forming a rising portion of the base of the first side portion;
a fixing step of fixing the rising portion of the foundation of the first side portion and the outer wall panel for the first floor ;
In the step of attaching the outer wall panel for the first floor to the first side surface portion, the outer wall panel for the first floor is attached to the beam constituting the skeleton,
The building construction method , wherein in the fixing step, the first horizontal member is removed, and then the rising portion and the outer wall panel for the first floor are fixed . The outer wall panel for the first floor is attached to the first floor portion of the first side portion in a suspended state,
2. The building construction method according to claim 1, wherein, in the forming step, the rising portion of the foundation of the first side portion is formed while the outer wall panel for the first floor is suspended. The outer wall panel for the first floor has an anchor member provided at the lower end,
3. The building construction method according to claim 1, wherein in the fixing step, the rising portion of the foundation of the first side portion and the anchor member are fixed. 4. The building construction method according to claim 3, wherein the anchor member has a position adjusting portion for vertically adjusting a mounting position with respect to the outer wall panel for the first floor. The anchor member has a through hole through which an anchor bolt extending upward from the base of the first side surface is inserted,
5. The building construction according to claim 3 or 4, wherein the second installation step includes a step of connecting the anchor bolt inserted through the through hole and the first horizontal member with a connecting member. Method. The second installation step further includes a step of installing a second horizontal member extending horizontally above the first horizontal member on the first side surface,
6. The building construction method according to any one of claims 2 to 5, wherein the outer wall panel for the first floor has a plurality of panel units arranged horizontally and attached to the second horizontal member. 7. The building construction according to any one of claims 1 to 6, wherein in the forming step, concrete is placed in the installation area where the construction machine was installed in the foundation formation area to further form a dirt floor. Method.

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