Construction methods for buildings using frame wall construction

Abstract

To provide a technique capable of reducing a burden on an operator at a construction site.SOLUTION: A construction method of a building using a wood frame construction method includes a unit manufacturing process executed in a factory and a unit assembling process executed at a construction site. The unit manufacturing step includes a wall panel manufacturing step of manufacturing a plurality of wall panels each including a frame unit having a plurality of frames and an outer board, a wall panel unit manufacturing step of manufacturing a plurality of wall panel units by attaching a heat insulating material, a gypsum board, a waterproof sheet, and a siding board to each of the plurality of wall panels, and a reference column manufacturing step of manufacturing a plurality of reference columns. The unit assembly step includes a reference column assembly step of assembling the plurality of reference columns, and a wall panel unit assembly step of positioning the plurality of wall panel units using the plurality of reference columns and assembling the plurality of wall panel units after the reference column assembly step.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The technology disclosed in this specification relates to a building construction method using a framed wall method.

Background Art

[0002] Patent Document 1 discloses a building using a framed wall method.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Generally, in the framed wall method, a wall panel having a plurality of frames and an outer board is manufactured, and the manufactured wall panel is assembled to a foundation or the like. Then, a heat insulating material, an inner board, a waterproof sheet, and a siding board are attached to the assembled wall panel. A technology for reducing the burden on the implementers at the construction site is desired.

[0005] This specification provides a technology capable of reducing the burden on the implementers at the construction site.

Means for Solving the Problems

[0006] In a first aspect disclosed herein, a construction method for a building using a framed wall construction method may comprise a unit manufacturing process performed in a factory and a unit assembly process performed at a construction site. The unit manufacturing process may include a wall panel manufacturing process for manufacturing a plurality of wall panels having a plurality of frames and an outer board, a wall panel unit manufacturing process for manufacturing a plurality of wall panel units by attaching insulation material, an inner board, a waterproof sheet, and a siding board to each of the plurality of wall panels, and a reference column manufacturing process for manufacturing a plurality of reference columns. The unit assembly process may include a reference column assembly process for assembling the plurality of reference columns, and a wall panel unit assembly process, after the reference column assembly process, for positioning the plurality of wall panel units using the plurality of reference columns and assembling the plurality of wall panel units.

[0007] According to the above configuration, the wall panel units are manufactured in a factory. This means that the contractor does not need to manufacture the equivalent components of the wall panel units at the construction site. Therefore, the burden on the contractor at the construction site can be reduced.

[0008] As mentioned above, when wall panel units are manufactured in a factory, it is not possible to adjust the position of siding boards and other components at the construction site. Therefore, precision in the positioning of siding boards and other components is required. With the above configuration, multiple reference columns can be used to appropriately position multiple wall panel units.

[0009] In a second embodiment, the unit manufacturing step in the first embodiment further includes a gable wall unit manufacturing step of manufacturing a gable wall unit having a plurality of gable wall frames and gypsum board, and the unit assembly step may further include a gable wall unit assembly step of assembling the gable wall units.

[0010] According to the above configuration, the contractor does not need to manufacture the gable wall units at the construction site. Therefore, the burden on the contractor at the construction site can be further reduced.

[0011] In a third embodiment, in the first or second embodiment, the unit manufacturing step further includes a floor panel unit manufacturing step of manufacturing a floor panel unit comprising a plurality of floor frames, plywood sections, insulation material, waterproof sheeting, and gypsum board, and the unit assembly step may further include a floor panel unit assembly step of assembling the floor panel units.

[0012] According to the above configuration, the contractor does not need to manufacture floor panel units at the construction site. Therefore, the burden on the contractor at the construction site can be further reduced.

[0013] In a fourth embodiment, the unit assembly step may further include a floor panel assembly step of assembling the floor panels, wherein the unit manufacturing step includes a floor panel manufacturing step of manufacturing a floor panel having a finishing member and a support portion fixed to the lower surface of the finishing member and extending downward from the lower surface, in the first to third embodiments described above.

[0014] According to the above configuration, the contractor does not need to manufacture floor panels at the construction site. Therefore, the burden on the contractor at the construction site can be further reduced. Furthermore, compared to configurations using the raised floor method, the burden on the contractor at the construction site can be further reduced.

[0015] In a fifth embodiment, the unit manufacturing step may further include a compression step of compressing the frame unit in the vertical direction, in the first to fourth embodiments described above. In the wall panel manufacturing step, a plurality of wall panels having the compressed frame unit and the outer board may be manufactured.

[0016] According to the above configuration, it is possible to suppress vertical distortion of the frame unit when the building is constructed at the construction site and after the building is completed. [Brief explanation of the drawing]

[0017] [Figure 1]Perspective view of Building 2. [Figure 2] Diagram showing the outline of the construction method for building Building 2. [Figure 3] Diagram showing the flow of the wall panel unit manufacturing process. [Figure 4] Perspective view of the first wall panel unit 10 without electrical materials and fixtures. [Figure 5] Perspective view of the second wall panel unit 30 without electrical materials. [Figure 6] Perspective view of the second wall panel unit 30 before the fixtures are installed. [Figure 7] Diagram showing the flow of the reference column manufacturing process. [Figure 8] Perspective view of the reference column 60. [Figure 9] Diagram showing the flow of the floor finish panel manufacturing process. [Figure 10] Perspective view of the first floor finish panel 80. [Figure 11] Perspective view of the second floor finish panel 90. [Figure 12] Perspective view of the third floor finish panel 100. [Figure 13] Diagram showing the state where the first floor finish panel 80, the second floor finish panel 90, and the third floor finish panel 100 are assembled. [Figure 14] Diagram showing the flow of the floor panel unit manufacturing process. [Figure 15] Perspective view of the floor panel unit 120. [Figure 16] Diagram showing the flow of the wife wall unit manufacturing process carried out in the factory. [[ID=?]] [[ID=?]] [Figure 17] Right side view of the wife wall panel 140. [Figure 18] Diagram showing the flow of the hut unit manufacturing process carried out in the factory. [Figure 19] Top view of the hut unit 160. [Figure 20] Right side view of the hut unit 160. [Figure 21] Diagram showing the flow of the unit assembly process carried out at the construction site. [Figure 22] It should be noted that there may be an error in the text where "妻壁ユニット" and "妻壁パネル" are used. If this is a specific term in a particular context, it may need to be adjusted according to the actual situation.A perspective view showing the standard columns and wall panel units for the first floor assembled. [Figure 23] A view of the reference column and wall panel unit from the inside. [Figure 24] A view of the reference column and wall panel unit from above. [Figure 25] A perspective view showing the standard columns and wall panel units for the second floor assembled. [Figure 26] A perspective view showing the standard columns and wall panel units for the third floor assembled. [Figure 27] A perspective view showing a building under construction covered with a 400mm rain protection sheet. [Modes for carrying out the invention]

[0018] (Examples) Building 2 in Figure 1 is a building constructed using the framed wall construction method. Building 2 is a three-story apartment building. Below, we will explain the construction method of Building 2 and then describe the details of Building 2.

[0019] As shown in Figure 2, the construction method for building 2 includes a unit manufacturing process performed in a factory and a unit assembly process performed at the construction site. The unit manufacturing process includes a wall panel unit manufacturing process, a standard column manufacturing process, a first floor panel manufacturing process, a floor panel unit manufacturing process, a gable wall unit manufacturing process, and a shed unit manufacturing process. Rain protection processes may also be performed at the construction site.

[0020] (Unit manufacturing process; Figures 3-18) The unit manufacturing process carried out in the factory will be explained with reference to Figures 3 to 18.

[0021] (Wall panel unit manufacturing process: Figure 3) Referring to Figure 3, the wall panel unit manufacturing process will be explained. The wall panel unit manufacturing process is the process of manufacturing wall panel units for exterior walls.

[0022] First, in S2, a frame unit containing multiple frames is manufactured. For example, the multiple frames include an upper frame, a lower frame, and multiple vertical frames connecting the upper and lower frames.

[0023] In S4, the frame unit manufactured in S2 is compressed vertically. The following steps are performed with the frame unit in a compressed state.

[0024] In S10, the wall panels are fabricated by attaching the outer board to the frame unit. For example, the outer board is made of plywood.

[0025] In S12, termite control treatment is performed on the wall panels manufactured in S10 by spraying or coating them with chemicals.

[0026] In step S14, electrical materials (outlet boxes, conduit pipes, etc.) are attached to the wall panel. Note that if the wall panel unit does not contain electrical materials, step S14 is omitted.

[0027] In S16, insulation material is installed on the inside of the outer board of the wall panel.

[0028] In S18, a waterproof sheet is attached to the outer surface of the outer board of the wall panel.

[0029] In S20, an inner board is attached to the inner surface of multiple frames of the wall panel. For example, the inner board is made of gypsum board.

[0030] In S22, siding boards are attached to the wall panels. Specifically, the siding boards are attached to the outside of the waterproofing sheet. A furring strip is placed between the waterproofing sheet and the siding board. Therefore, a gap is formed between the waterproofing sheet and the siding board.

[0031] In step S24, fixtures (doors, windows, etc.) are attached to the wall panels. If wall panel units without fixtures are manufactured, step S24 is omitted.

[0032] One wall panel unit is manufactured according to steps S10 to S24 described above.

[0033] (Wall panel unit; Figures 4-6) Referring to Figures 4 to 6, an example of a wall panel unit manufactured by the above-described wall panel unit manufacturing process will be explained. Note that the directions in the following figures are added for ease of understanding and do not represent actual directions. Also, the right side of Figures 4 to 6 shows the inside of the building, and the left side shows the outside of the building.

[0034] Referring to Figure 4, the first wall panel unit 10, which does not have electrical materials or joinery, will be described. The manufacturing process of the first wall panel unit 10 does not include steps S14 and S24 in Figure 3.

[0035] As shown in Figure 4, the first wall panel unit 10 comprises a wall panel 12, a waterproof sheet 14, an inner board 16, and a siding board 18. The wall panel 12 comprises a frame unit 20 and an outer board 22. The frame unit 20 includes an upper frame 24, a lower frame 26 positioned below the upper frame 24, and a plurality of vertical frames 28 connecting the upper frame 24 and the lower frame 26. The upper frame 24 and the lower frame 26 extend in the front-to-back direction. The plurality of vertical frames 28 extend in the up-to-down direction. The outer board 22 is fixed to the outer surfaces of the upper frame 24, the lower frame 26, and the plurality of vertical frames 28.

[0036] The inner board 16 is fixed to the inner surface of the upper frame 24 and the multiple vertical frames 28. The lower end of the inner board 16 is located above the lower end of the outer board 22. The front ends of the inner board 16 and the outer board 22 are located in front of the front ends of the upper frame 24 and the lower frame 26. The rear ends of the inner board 16 and the outer board 22 are located behind the rear ends of the upper frame 24 and the lower frame 26.

[0037] Referring to Figures 5 and 6, a second wall panel unit 30 that does not have electrical materials but has joinery 40 will be described. The manufacturing process of the second wall panel unit 30 does not include step S14 in Figure 3.

[0038] As shown in Figure 5, the second wall panel unit 30 comprises a wall panel 32, a waterproof sheet 34, an inner board 36, a siding board 38, and a joinery 40 (see Figure 6). The wall panel 32 comprises a frame unit 42 and an outer board 44. The frame unit 42 comprises an upper frame 50, a lower frame 52 positioned below the upper frame 50, a plurality of first vertical frames 54 connecting the upper frame 50 and the lower frame 52, a lintel (not shown), and a plurality of second vertical frames (not shown) connecting the upper frame 50 and the lintel. The plurality of first vertical frames 54 and the plurality of second vertical frames extend in the vertical direction. The outer board 44 is fixed to the outer surfaces of the upper frame 50, the lower frame 52, the plurality of first vertical frames 54, the lintel, and the plurality of second vertical frames. The inner board 36 is fixed to the inner surfaces of the upper frame 50, the lower frame 52, the multiple first vertical frames 54, the lintel, and the multiple second vertical frames. Openings 44A and 36A are formed in the outer board 44 and the inner board 36, respectively. The joinery 40 shown in Figure 6 is placed in the openings 44A and 36A. The rear ends of the outer board 44 and the inner board 36 are located behind the rear ends of the upper frame 50 and the lower frame 52.

[0039] As described above, various shapes of wall panel units are manufactured using the wall panel unit manufacturing process shown in Figure 3.

[0040] (Construction process for the reference post: Figure 7) Referring to Figure 7, the process for manufacturing the reference column will be explained. The reference column is a column used to position wall panel units at the construction site.

[0041] In S30, a central column of a predetermined length is manufactured. In this embodiment, the central column is a rectangular prism with a square cross-section.

[0042] In S32, one or more lateral columns are attached to the side of the central column. The lateral columns are rectangular prisms with a rectangular cross-section. The cross-sectional area of ​​the lateral columns is approximately half the cross-sectional area of ​​the central column.

[0043] In S34, markings are made on the central column. These markings are used to position the wall panel units vertically.

[0044] According to steps S30 to S34 above, one reference column is manufactured.

[0045] (Reference column 60; Figure 8) Referring to Figure 8, an example of a reference column manufactured by the reference column manufacturing process shown in Figure 7 will be explained.

[0046] The standard column 60 comprises a central column 62 and two lateral columns 64 and 66. The central column 62 is marked with ink 62A. For example, if the standard column 60 is fixed to the foundation, the ink 62A indicates the position of the upper end of the wall panel unit for the first floor.

[0047] The lateral columns 64 are attached to the right side of the central column 62, and the lateral columns 66 are attached to the left side of the central column 62. The upper ends of the lateral columns 64 and 66 are located below the upper end of the central column 62. The lower ends of the lateral columns 64 and 66 are located below the lower end of the central column 62.

[0048] The position and number of lateral columns attached to the central column vary depending on the position and number of wall panel units assembled to the reference column. For example, wall panel units are positioned to the right and left of the reference column 60. Therefore, lateral columns 64 and 66 are attached to the right and left of the central column 62.

[0049] (Floor finishing panel manufacturing process: Figure 9) Referring to Figure 9, the process for manufacturing floor finishing panels will be explained. These floor finishing panels are used for the first floor.

[0050] In step S40, the finishing member, which has been finished to a predetermined shape, is connected to the support. This completes the production of one floor finishing panel. For example, the finishing member may be a flooring material or cork material.

[0051] (Floor finishing panels; Figures 10-13) Referring to Figures 10 to 13, an example of a floor finishing panel manufactured by the floor finishing panel manufacturing process shown in Figure 9 will be described.

[0052] As shown in Figure 10, the first floor finishing panel 80 comprises a flat-shaped finishing member 82 and two support parts 84. The finishing member 82 is made of flooring material or cork material. The finishing member 82 does not have a tongue and groove joint. The two support parts 84 are connected to the lower surfaces of both the left and right ends of the finishing member 82. The support parts 84 are connected to the lower surface of the finishing member 82 by adhesive, fasteners, etc. The longitudinal direction of the support part 84 is aligned with the front-to-back direction, and the short direction is aligned with the up-to-down direction. The support part 84 comprises a convex part 84A provided at the rear end of the support part 84 and a concave part 84B provided at the front end of the support part 84. The convex part 84A has a shape corresponding to the concave part 84B.

[0053] Referring to Figure 11, the second floor finishing panel 90 will be described. The configuration of the support portion 94 of the second floor finishing panel 90 differs from that of the support portion 84 of the first floor finishing panel 80. Specifically, the support portion 94 of the second floor finishing panel 90 has a recess 94B provided at the front end of the support portion 94. As shown in Figure 13, the recess 94B has a shape corresponding to the protrusion 84A of the first floor finishing panel 80. In addition, the rear end of the support portion 94 of the second floor finishing panel 90 is inclined forward from top to bottom. That is, the support portion 94 does not have a protrusion.

[0054] Referring to Figure 12, the third floor finishing panel 100 will be described. The configuration of the support portion 104 of the third floor finishing panel 100 differs from the configuration of the support portion 84 of the first floor finishing panel 80. Specifically, the support portion 104 of the third floor finishing panel 100 has a protrusion 104A provided at the rear end of the support portion 104. As shown in Figure 13, the protrusion 104A has a shape corresponding to the recess 84B of the first floor finishing panel 80. In addition, the front end of the support portion 104 of the third floor finishing panel 100 is inclined towards the rear as it goes from top to bottom. That is, the support portion 104 does not have a recess.

[0055] (Floor panel unit manufacturing process: Figure 14) Referring to Figure 14, the manufacturing process for floor panel units will be explained. Floor panel units are used for floors above the second floor.

[0056] In S50, the floor panel is assembled. The floor panel comprises an outer frame that defines the outer shape of the floor panel, an inner frame positioned inside the outer frame, and a plywood section positioned on the outer frame and the inner frame.

[0057] In S52, insulation material was attached to the underside of the plywood portion of the floor panel.

[0058] In S54, a waterproof sheet was attached to the insulation material of the floor panel.

[0059] In 1981 (S56), gypsum board was attached to the top surface of the plywood portion of the floor panel.

[0060] One floor panel unit is manufactured according to the above steps S50-S56.

[0061] (Floor panel unit; Figure 15) Referring to Figure 15, an example of a floor panel unit manufactured by the floor panel unit manufacturing process shown in Figure 14 will be described.

[0062] As shown in Figure 15, the floor panel unit 120 comprises a floor panel 122, insulation material (not shown), a waterproof sheet (not shown), and gypsum board 124. The floor panel 122 comprises an outer frame 130, an inner frame (not shown), and a plywood section 132. The insulation material and waterproof sheet are provided on the lower side of the plywood section 132. The gypsum board 124 is provided on a part of the upper surface of the plywood section 132. The portion of the upper surface of the plywood section 132 where the gypsum board 124 is not provided is the portion where the wall panel unit is placed.

[0063] (Gable wall unit manufacturing process: Figure 16) Referring to Figure 16, the gable wall unit manufacturing process will be described. The gable wall unit defines the uppermost exterior wall of building 2.

[0064] In S60, the gable wall panels were manufactured.

[0065] In S62, gypsum board is attached to the gable wall panels manufactured in S60. This completes the gable wall unit.

[0066] (Gable wall panel; Figure 17) Referring to Figure 17, an example of a gable wall panel manufactured during the manufacturing process of the gable wall unit shown in Figure 16 will be described.

[0067] As shown in Figure 17, the gable wall panel 140 comprises an upper frame 142, a lower frame 144 positioned below the upper frame 142, a plurality of vertical frames 146 connecting the upper frame 142 and the lower frame 144, and a plurality of first roof panel support frames 148. Each of the plurality of first roof panel support frames 148 is fixed between two adjacent vertical frames 146 in the front-to-back direction. The plurality of vertical frames 146 are inclined upward from the rear to the front. The gable wall unit is completed by attaching gypsum board to the outside of this gable wall panel 140.

[0068] In addition, in some gable wall panels, multiple first roof panel support frames extend parallel to the horizontal plane.

[0069] (Shed unit manufacturing process: Figure 18) Referring to Figures 18 and 19, the process of manufacturing the shed unit will be explained.

[0070] In S70, a shed unit is manufactured by assembling multiple frames.

[0071] (Shed unit; Figures 19 and 20) Referring to Figures 19 and 20, an example of a shed unit manufactured by the shed unit manufacturing process shown in Figure 18 will be described.

[0072] As shown in Figure 19, the shed unit 160 comprises a front frame 162, a rear frame 164 positioned behind the front frame 162, a plurality of horizontal frames 166, a plurality of second roof panel support frames 168, and a plurality of connecting frames 170. In Figure 19, the plurality of horizontal frames 166 are hatched for clarity. The shed unit comprises a front frame 162, a rear frame 164, a plurality of horizontal frames 166, a second roof panel support frame 168, and a plurality of connecting frames 170. The plurality of horizontal frames 166 connect the front frame 162 and the rear frame 164. The plurality of connecting frames 170 connect the upper surfaces of the horizontal frames 166 in the left-right direction. The plurality of second roof panel support frames 168 connect the front frame 162 and the rear frame 164. As shown in Figure 20, the upper surface of the second roof panel support frame 168 slopes upward from the rear to the front. A roof panel (not shown) is positioned on the upper surface of the second roof panel support frame 168. Although not shown, the shed unit 160 further comprises a left frame and a right frame positioned behind the left frame.

[0073] The units produced during the unit manufacturing process are transported to the construction site by truck or other means. For example, wall panel units are transported to the construction site packed in racks.

[0074] (Unit assembly process; Figures 1, 21-26) The unit assembly process performed at the construction site will be explained with reference to Figures 1 and 20-25. Note that the unit assembly process is performed after the foundation 200 (see Figure 23) has been constructed. In Figures 22, 25, and 26, for clarity, only some of the reference columns and some of the wall panel units are labeled. Also, in Figures 23 and 24, the waterproofing sheet and siding boards are omitted.

[0075] In S100, multiple standard columns for the first floor are fixed on the foundation 200. As shown in Figure 22, some of the multiple standard columns (e.g., 202, 206) are installed at the corners of the building. In addition, some of the standard columns for the first floor (e.g., 204) are positioned between two standard columns for the first floor.

[0076] As shown in Figure 23, the reference column 202 is fixed to the foundation 200 via the support portion 201. The support portion 201 is fixed on the foundation 200. In a modified example, the reference column 202 may be directly fixed to the foundation 200.

[0077] In S102 of Figure 21, multiple wall panel units for the first floor are positioned and temporarily fixed to the foundation 200. Specifically, the horizontal positioning of the wall panel units is determined using multiple reference columns for the first floor, and the vertical positioning of the wall panel units is determined using the markings on the reference columns. As a result, the multiple wall panel units are positioned on the foundation 200, as shown in Figure 22.

[0078] Referring to Figures 23 and 24, a method for positioning the wall panel unit 208 using the reference column 204 will be described. As shown in Figure 23, the reference column 202 comprises a central column 220, a lateral column 222 attached to the right side of the central column 220, and a lateral column 224 attached to the front of the central column 220. The reference column 204 comprises a central column 226, a lateral column 228 attached to the right side of the central column 226, and a lateral column 230 attached to the left side of the central column 226. The central columns 220 and 226 are marked with ink 220A and 226A. The wall panel unit 208 comprises a wall panel 240 and an inner board 242. Note that in Figure 24, the waterproof sheet, inner board, and siding board are omitted for clarity. The wall panel 240 comprises a frame unit 244 and an outer board 246. The frame unit 244 comprises an upper frame 248 (see Figure 24), a lower frame 250, and a plurality of vertical frames 252. The dimensions of the upper frame 248 and the lower frame 250 in the front-to-back direction are approximately the same as the dimensions of the central column 220 in the front-to-back direction.

[0079] First, as shown in Figure 24, the position of the wall panel unit 208 is adjusted so that the lateral column 230 of the reference column 204 is positioned between the inner board 242 and the outer board 246 of the wall panel unit 208. This positions the wall panel unit 208 in the front-to-back direction. Next, the position of the wall panel unit 208 is adjusted so that the right side of the upper frame 248 of the wall panel unit 208 abuts against the lateral column 230 of the reference column 204. This positions the wall panel unit 208 in the left-to-right direction. In this state, the left side of the upper frame 248 of the wall panel unit 208 abuts against the lateral column 222 of the reference column 202. Next, the position of the wall panel unit 208 is adjusted so that the upper end of the wall panel unit 208 coincides with the mark 226A of the reference column 204. This positions the wall panel unit 208 in the up-to-down direction. In this way, the wall panel unit 208 is positioned. Figures 23 and 24 illustrate the case where one wall panel unit is placed between two reference columns for clarity, but two or more wall panel units may be placed between the two reference columns.

[0080] As shown in Figure 22, the other components besides the wall panel units 206 are then temporarily fixed onto the foundation 200.

[0081] Next, in S110 of Figure 21, multiple floor panel units 260 for the second floor (see Figure 25) are assembled above multiple wall panel units, etc.

[0082] In S112, a reference column (e.g., 262, 264, 266) is connected to each of the multiple reference columns fixed to the foundation 200. The newly connected reference columns are marked with ink to indicate the position of the upper end of the wall panel unit for the second floor (e.g., 268).

[0083] In S114, multiple wall panel units for the second floor are positioned and assembled (temporarily fixed) onto the floor panel unit for the second floor. As a result, for example, the wall panel unit 268 for the second floor is positioned above the wall panel unit 208 for the first floor. Then, as shown in Figure 25, other second-floor components besides the multiple wall panel units are also assembled (temporarily fixed) onto the floor panel unit 260.

[0084] In S120 of Figure 21, multiple floor panel units 290 for the third floor (see Figure 26) are assembled above multiple wall panel units for the second floor.

[0085] In S122, a reference column (e.g., 292, 294, 296) is connected to each of the multiple reference columns connected in S112. The newly connected reference columns are marked with ink to indicate the position of the upper end of the wall panel unit for the third floor (e.g., 298).

[0086] In S124, multiple wall panel units for the third floor are positioned, and these wall panel units are assembled (temporarily fixed) to the floor panel unit 290 for the third floor. Subsequently, as shown in Figure 26, other components for the third floor besides the multiple wall panel units are also assembled to the floor panel unit 260.

[0087] In S130, the gable wall units, shed units, and roof panels are assembled. Specifically, multiple gable wall units are assembled above multiple wall panel units for the third floor. Additionally, shed units are assembled below the multiple gable wall units. Furthermore, roof panels are assembled on the top surface of the shed units.

[0088] After the installation of piping and other components is completed, multiple floor finishing panels are placed on the first floor. In this way, once the assembly of each unit manufactured in the factory is complete, building 2 in Figure 1 is finished.

[0089] (Rain protection process; Figure 27) The rain protection process will be explained with reference to Figure 27. The rain protection process is carried out at the end of each day's work, or if it rains during work.

[0090] For example, consider the case where it rains at the construction site after S102 in Figure 21 is completed. In this case, as shown in Figure 27, a rain protection sheet 400 is placed above the building under construction using multiple reference columns (e.g., 202, 204, 206, 208). A crane or similar vehicle is used to place the rain protection sheet 400. Multiple weights 402 are attached to the ends of the rain protection sheet 400. In Figure 27, the weights 402 are directly attached to the rain protection sheet 400, but they may also be attached to the rain protection sheet 400 via string-like members. Note that placing the rain protection sheet 400 above the building under construction may be done manually by the contractor. Furthermore, the size of the rain protection sheet 400 should be such that its lower end is slightly above the lower end of the wall panel unit.

[0091] (Effects of this embodiment) As described above, the construction method for buildings using framed wall construction comprises a unit manufacturing process performed in a factory and a unit assembly process performed at the construction site. The unit manufacturing process includes a wall panel manufacturing process (S10 in Figure 3) for manufacturing multiple wall panels having multiple frames and outer boards, a wall panel unit manufacturing process (S16-S24 in Figure 3) for manufacturing multiple wall panel units by attaching insulation material, inner boards, waterproof sheets, and siding boards to each of the multiple wall panels, and a reference column manufacturing process (Figure 4) for manufacturing multiple reference columns. The unit assembly process includes a reference column assembly process (S100, S112, S122 in Figure 20) for assembling multiple reference columns, and a wall panel unit assembly process (S102, S114, S124 in Figure 20) for positioning multiple wall panel units using the multiple reference columns after the reference column assembly process and assembling the multiple wall panel units.

[0092] According to the above configuration, the wall panel units are manufactured in a factory. This means that the contractor does not need to manufacture the equivalent components of the wall panel units at the construction site. Therefore, the burden on the contractor at the construction site can be reduced.

[0093] Furthermore, with the above configuration, multiple reference columns can be used to appropriately position multiple wall panel units.

[0094] Furthermore, the unit manufacturing process further includes a gable wall unit manufacturing process (Figure 16) for manufacturing a gable wall unit having multiple gable wall frames and gypsum board, and the assembly process further includes a gable wall unit assembly process (S130 in Figure 20) for assembling the gable wall units.

[0095] According to the above configuration, the contractor does not need to manufacture the gable wall units at the construction site. Therefore, the burden on the contractor at the construction site can be further reduced.

[0096] Furthermore, the unit manufacturing process further includes a floor panel unit manufacturing process (Figure 14) for manufacturing a floor panel unit that includes multiple floor frames, plywood sections, insulation material, waterproof sheeting, and gypsum board, and the unit assembly process further includes a floor panel unit assembly process (S110 and S120 in Figure 20) for assembling the floor panel units.

[0097] According to the above configuration, the contractor does not need to manufacture floor panel units at the construction site. Therefore, the burden on the contractor at the construction site can be further reduced.

[0098] Furthermore, the unit manufacturing process includes a floor panel manufacturing process (Figure 9) for manufacturing a floor panel having a finishing member and a support part fixed to the lower surface of the finishing member and extending downward from the lower surface, and the unit assembly process further includes a floor panel assembly process for assembling the floor panels.

[0099] According to the above configuration, the contractor does not need to manufacture floor panels at the construction site. Therefore, the burden on the contractor at the construction site can be further reduced. Furthermore, compared to configurations using the raised floor method, the burden on the contractor at the construction site can be further reduced.

[0100] Furthermore, the unit manufacturing process includes a compression process (S4 in Figure 3) in which the frame unit is compressed vertically. In the wall panel manufacturing process (S10), multiple wall panels are manufactured, each having a compressed frame unit and an outer board.

[0101] According to the above configuration, it is possible to suppress vertical distortion of the frame unit when the building is constructed at the construction site and after the building is completed.

[0102] The specific examples of the technology disclosed herein have been described in detail above, but these are merely illustrative and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes to the specific examples illustrated above. Modifications of the above embodiments are listed below.

[0103] (First Modification) The unit manufacturing process in Figure 2 does not necessarily have to include the gable wall unit manufacturing process and the shed unit manufacturing process. In this modification, the gable wall unit and the shed unit are manufactured at the construction site.

[0104] (Second Modification) The unit manufacturing process in Figure 2 does not necessarily have to include the floor panel unit manufacturing process. In this modification, the floor panel units are manufactured at the construction site.

[0105] (Third Modification) The unit manufacturing process in Figure 2 does not necessarily have to include the floor finishing panel manufacturing process. In this modification, the floor finishing panels are manufactured at the construction site.

[0106] (Fourth modified example) In the wall panel unit manufacturing process shown in Figure 3, step S4 can be omitted.

[0107] The technical elements described herein or in the drawings demonstrate technical usefulness individually or in various combinations, and are not limited to the combinations described in the claims at the time of filing. Furthermore, the technologies illustrated herein or in the drawings can achieve multiple objectives simultaneously, and achieving even one of these objectives constitutes technical usefulness in itself. [Explanation of Symbols]

[0108] 2: Building, 10: First wall panel unit, 12: Wall panel, 14: Waterproof sheet, 16: Inner board, 18: Siding board, 20: Frame unit, 22: Outer board, 24: Upper frame, 26: Lower frame, 28: Vertical frame, 30: Second wall panel unit, 32: Wall panel, 34: Waterproof sheet, 36: Inner board, 36A: Opening, 38: Siding board, 40: Joinery, 42: Frame unit, 44: Outer board, 44A :Opening, 50:Upper frame, 52:Lower frame, 54:First vertical frame, 60:Reference column, 62:Central column, 62A:Ink, 64:Side column, 66:Side column, 80:First floor finishing panel, 82:Finishing member, 84:Support part, 84A:Convex part, 84B:Concave part, 90:Second floor finishing panel, 94:Support part, 94B:Concave part, 100:Third floor finishing panel, 104:Support part, 104A:Convex part, 120:Floor panel unit, 122:Floor panel, 124:Gypsum board 130: Outer frame, 132: Plywood section, 140: Gable wall panel, 142: Upper frame, 144: Lower frame, 146: Vertical frame, 148: First roof panel support frame, 160: Shed unit, 162: Front frame, 164: Rear frame, 166: Horizontal frame, 168: Second roof panel support frame, 170: Connecting frame, 200: Foundation, 201: Support section, 202: Reference column, 204: Reference column, 206: Wall panel unit, 208: Wall Panel unit, 220: central column, 220A: ink, 222: side column, 224: side column, 226: central column, 226A: ink, 228: side column, 230: side column, 240: wall panel, 242: inner board, 244: frame unit, 246: outer board, 248: upper frame, 250: lower frame, 252: vertical frame, 260: floor panel unit, 268: wall panel unit, 290: floor panel unit, 400: rain protection sheet, 402: weight

Claims

1. A building construction method using framed wall construction, The unit manufacturing process carried out in the factory, It includes a unit assembly process performed at the construction site, The aforementioned unit manufacturing process is as follows: A wall panel manufacturing process for producing multiple wall panels, each having a frame unit with multiple frames and an outer board, A wall panel unit manufacturing process involves attaching insulation material, an inner board, a waterproof sheet, and a siding board to each of the aforementioned multiple wall panels to produce multiple wall panel units. This includes a process for manufacturing multiple reference posts, The aforementioned unit assembly process is as follows: A reference column assembly process for assembling the aforementioned multiple reference columns, The process includes, after the reference column assembly process, a wall panel unit assembly process in which the plurality of wall panel units are positioned using the plurality of reference columns and assembled together. Architectural method.

2. The aforementioned unit manufacturing process is as follows: The process further includes a gable wall unit manufacturing process for manufacturing a gable wall unit having multiple gable wall frames and gypsum board, The aforementioned unit assembly process is as follows: The construction method according to claim 1, further comprising a step of assembling the gable wall units.

3. The aforementioned unit manufacturing process is as follows: The process further includes a floor panel unit manufacturing process for producing a floor panel unit having multiple floor frames, plywood sections, insulation material, waterproof sheeting, and gypsum board, The aforementioned unit assembly process is as follows: The construction method according to claim 1, further comprising a floor panel unit assembly step of assembling the floor panel units.

4. The aforementioned unit manufacturing process is as follows: The process includes manufacturing a floor panel comprising a finishing member and a support portion fixed to the lower surface of the finishing member and extending downward from the lower surface, The aforementioned unit assembly process is as follows: The construction method according to claim 1, further comprising a floor panel assembly step of assembling the floor panels.

5. The aforementioned unit manufacturing process is as follows: The process further includes a compression step of compressing the frame unit in the vertical direction, The construction method according to claim 1, wherein in the wall panel manufacturing step, a plurality of wall panels having the compressed frame unit and the outer board are manufactured.

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