Building units and buildings

Abstract

Increase the rigidity of the building unit. [Solution] The building unit 100 comprises a plurality of column members 10c, 10d extending in the vertical direction and spaced apart horizontally; a beam member 20c made of an H-shaped steel that connects the plurality of column members 10c, 10d and has a web 21 and a pair of flanges 22, 23; and a reinforcing body 43 attached to the beam member 20c, configured to transmit a horizontal force applied to the beam member 20c to the end face 11 of at least one column member 10c of the plurality of column members 10c, 10d via one flange 23 of the pair of flanges 22, 23 of the H-shaped steel, and to distribute the force throughout the cross section of at least one column member 10c to suppress local deformation, thereby reinforcing at least one column member 10c.

Description

[Technical Field]

[0001] The present invention relates to building units and buildings. [Background technology]

[0002] The unit construction method is known as a method for constructing buildings such as houses, hotels, and offices (Patent Document 1). In the unit construction method, multiple steel-framed building units are fabricated in a factory, transported to a construction site, and assembled vertically and horizontally to construct a building.

[0003] In the unit construction method disclosed in Patent Document 1, a building unit includes a plurality of columns erected at the four corners and a plurality of beams erected across the columns. Square steel pipes are used for the columns. H-shaped steel beams are used for the beams. The square steel pipes and H-shaped steel beams are joined by welding. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-186105 Summary of the Invention [Problem to be solved by the invention]

[0005] In the building unit disclosed in Patent Document 1, the H-shaped steel is joined to the side of the square steel pipe. Therefore, when horizontal forces (lateral forces) generated by earthquakes or wind are applied to the H-shaped steel, the square steel pipe may be crushed by the H-shaped steel, causing the building unit to deform.

[0006] The present invention aims to increase the rigidity of the building unit. [Means for solving the problem]

[0007] The present invention comprises a plurality of column members extending in the vertical direction and spaced apart horizontally; a beam member made of H-shaped steel that connects the plurality of column members and has a web and a pair of flanges; and a reinforcing body attached to the beam member, configured to transmit a horizontal force applied to the beam member to the end face of at least one of the plurality of column members via one of the pair of flanges of the H-shaped steel, and to distribute the force throughout the cross section of the at least one column member to suppress local deformation, thereby reinforcing the at least one column member.

[0008] The present invention also provides a method for forming a plurality of building units each comprising: a plurality of column members extending in the vertical direction and spaced apart in the horizontal direction; a beam member made of H-shaped steel that connects the plurality of column members and has a web and a pair of flanges; and a reinforcing member attached to the beam member that transmits a horizontal force applied to the beam member to the end face of at least one of the plurality of column members via one of the pair of flanges of the H-shaped steel, and is configured to distribute the force throughout the cross section of the at least one column member, thereby suppressing local deformation, thereby reinforcing the at least one column member; the plurality of building units are arranged side by side in at least one of the vertical direction and horizontal direction, and adjacent plurality of building units are fastened together. [Effects of the Invention]

[0009] According to this invention, the rigidity of the building unit can be increased. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a schematic diagram showing a part of a building according to a first embodiment of the present invention; [Figure 2] FIG. 2 is a perspective view of the building unit shown in FIG. 1; [Figure 3] FIG. 3 is an enlarged perspective view of part III shown in FIG. 2. [Figure 4] 4 is a partially enlarged side view of the building unit as viewed from the direction of arrow IV shown in FIG. 3. FIG. [Figure 5] FIG. 5 is a cross-sectional view taken along line VV shown in FIG. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI shown in FIG. 5. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII shown in FIG. 5. [Figure 8] FIG. 10 is a schematic diagram illustrating deformation that occurs in the building unit when a horizontal force is applied to the first beam member. [Figure 9] 1 is an enlarged perspective view of a building showing the periphery of a connecting structure according to an embodiment of the present invention; [Figure 10] 10 is a partially enlarged plan view of the building as seen from the direction of the arrow X shown in FIG. 9. FIG. [Figure 11] FIG. 11 is a cross-sectional view taken along line XI-XI shown in FIG. [Figure 12] 11A and 11B are diagrams for explaining a construction method according to an embodiment of the present invention; [Figure 13] 12 is a cross-sectional view of a connection structure according to a first modified example of the embodiment of the present invention, shown in correspondence with FIG. 11. [Figure 14] 13 is a cross-sectional view of a connection structure according to a second modified example of the embodiment of the present invention, shown in correspondence with FIG. 12. FIG. [Figure 15] 13 is a cross-sectional view of a connecting structure according to a third modified example of the embodiment of the present invention, shown in correspondence with FIG. 12. FIG. [Figure 16] 13 is a cross-sectional view of a connection structure according to a fourth modified example of the embodiment of the present invention, shown in correspondence with FIG. 12. [Figure 17] 13 is a cross-sectional view of a connecting structure according to a fifth modified example of the embodiment of the present invention, shown in correspondence with FIG. 12. [Figure 18] 11 is a partially enlarged plan view of a connection structure according to a sixth modified example of the embodiment of the present invention, shown in correspondence with FIG. 10. FIG. [Figure 19] FIG. 19 is a cross-sectional view taken along line XIX-XIX shown in FIG. 18. [Figure 20] 11 is a partially enlarged plan view of a connection structure according to a seventh modified example of the embodiment of the present invention, shown in correspondence with FIG. 10. FIG. [Figure 21]FIG. 21 is a cross-sectional view taken along line XXI-XXI shown in FIG. 20. [Figure 22] 11 is a partially enlarged plan view of a connection structure according to an eighth modified example of the embodiment of the present invention, shown in correspondence with FIG. 10. FIG. [Figure 23] FIG. 23 is a cross-sectional view taken along line XXIII-XXIII shown in FIG. 22. [Figure 24] FIG. 10 is a perspective view of a building unit used in a building according to a second embodiment of the present invention. [Figure 25] FIG. 25 is an enlarged perspective view of a portion XXV shown in FIG. 24. [Figure 26] FIG. 26 is a partially enlarged side view of the building unit as seen from the direction of arrow XXVI shown in FIG. 25. [Figure 27] FIG. 27 is a cross-sectional view taken along line XXVII-XXVII shown in FIG. 26. [Figure 28] FIG. 28 is a cross-sectional view taken along line XXVIII-XXVIII shown in FIG. 27. [Figure 29] FIG. 25 is an enlarged perspective view showing the periphery of a connecting structure that connects the building units shown in FIG. 24 together. DETAILED DESCRIPTION OF THE INVENTION

[0011] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a connecting structure of building units, a building, and a method for constructing a building according to an embodiment of the present invention will be described with reference to the drawings.

[0012] First Embodiment 1 to 12, a description will be given of a connection structure 300 according to a first embodiment of the present invention, a building 1, and a method for constructing the building 1. The building 1 is, for example, a house, a hotel, an office, etc.

[0013] FIG. 1 is a schematic diagram showing a portion of a building 1. As shown in FIG. 1, the building 1 comprises a plurality of building units 100a, 100b, 100c, and 100d. The building unit 100a is placed on a foundation 2 constructed on the ground. The foundation 2 is made of, for example, concrete. The building unit 100b is stacked on top of the building unit 100a. The building unit 100c is placed on the foundation 2, aligned horizontally with the building unit 100a. The building unit 100d is stacked on top of the building unit 100c.

[0014] Building unit 100a and building unit 100c are connected to foundation 2 using foundation fastening means 3. Foundation fastening means 3 includes anchor bolts that protrude from foundation 2 and nuts that thread onto the anchor bolts. Building unit 100a and building unit 100b, building unit 100a and building unit 100c, building unit 100c and building unit 100d, and building unit 100b and building unit 100d are connected to one another using unit fastening means 4. Unit fastening means 4 includes bolts and nuts that thread onto the bolts. Furthermore, building unit 100a and building unit 100c, and building unit 100b and building unit 100d are connected to one another using connecting structure 300 (see FIG. 9).

[0015] The building units 100a, 100b, 100c, and 100d have approximately the same structure. Hereinafter, when the building units 100a, 100b, 100c, and 100d are collectively referred to, they will simply be referred to as "building unit 100." The left-to-right direction of the paper in FIG. 1 is referred to as the "row direction," the direction perpendicular to the paper is referred to as the "span direction," and the up-to-down direction of the paper is referred to as the "height direction." The row direction and span direction are collectively referred to as the "horizontal direction."

[0016] Figure 2 is a perspective view of a building unit 100. As shown in Figure 2, the building unit 100 comprises a plurality of column members 10a, 10b, 10c, and 10d, a plurality of first beam members 20a, 20b, 20c, and 20d, and a plurality of second beam members 30a, 30b, 30c, and 30d. The column members 10a, 10b, 10c, and 10d are made of square steel pipes. The first beam members 20a, 20b, 20c, and 20d and the second beam members 30a, 30b, 30c, and 30d are made of H-shaped steel.

[0017] The column members 10a, 10b, 10c, and 10d extend in the height direction. The column members 10a and 10b are arranged at intervals from each other in the longitudinal direction. The column members 10c and 10d are arranged at intervals from each other in the longitudinal direction. The column members 10a and 10c are arranged at intervals from each other in the span direction. The column members 10b and 10d are arranged at intervals from each other in the span direction.

[0018] The first beam members 20a, 20b, 20c, and 20d extend in the longitudinal direction. The first beam members 20a and 20b are spaced apart in the height direction. The first beam members 20c and 20d are spaced apart in the height direction. The first beam members 20a and 20c are spaced apart in the span direction. The first beam members 20b and 20d are spaced apart in the span direction.

[0019] The first beam member 20a extends above the pillar members 10a and 10b, connecting them. The first beam member 20b extends below the pillar members 10a and 10b, connecting them. The first beam member 20c extends above the pillar members 10c and 10d, connecting them. The first beam member 20d extends below the pillar members 10c and 10d, connecting them.

[0020] The second beam members 30a, 30b, 30c, and 30d extend in the span direction. The second beam members 30a and 30b are spaced apart in the height direction. The second beam members 30c and 30d are spaced apart in the height direction. The second beam members 30a and 30c are spaced apart in the longitudinal direction. The second beam members 30b and 30d are spaced apart in the longitudinal direction.

[0021] The second beam member 30a extends between the first beam members 20a and 20c and connects the first beam members 20a and 20c. The second beam member 30a connects the column members 10a and 10c via the first beam members 20a and 20c. The second beam member 30b extends between the first beam members 20b and 20d and connects the first beam members 20b and 20d. The second beam member 30b connects the column members 10a and 10c via the first beam members 20b and 20d. The second beam member 30c extends between the first beam members 20a and 20c and connects the first beam members 20a and 20c. The second beam member 30c connects the column members 10a and 10c via the first beam members 20a and 20c. The second beam member 30d extends between the first beam members 20b and 20d and connects the first beam members 20b and 20d. The second beam member 30d connects the column members 10b and 10d via the first beam members 20b and 20d.

[0022] The relationship between the second beam members 30a, 30b, 30c, 30d and the pillar members 10a, 10b, 10c, 10d may be as follows: The second beam member 30a extends above the pillar members 10a and 10c and connects them. The second beam member 30b extends below the pillar members 10a and 10c and connects them. The second beam member 30c extends above the pillar members 10b and 10d and connects them. The second beam member 30d extends below the pillar members 10b and 10d and connects them.

[0023] The structure of the vicinity of the joint between the pillar member 10c, the first beam member 20c, and the second beam member 30a will be described below. The structure near the joint between the column member 10a, the first beam member 20a, and the second beam member 30a, the structure near the joint between the column member 10a, the first beam member 20b, and the second beam member 30b, the structure near the joint between the column member 10b, the first beam member 20a, and the second beam member 30c, the structure near the joint between the column member 10b, the first beam member 20b, and the second beam member 30d, the structure near the joint between the column member 10c, the first beam member 20d, and the second beam member 30b, the structure near the joint between the column member 10d, the first beam member 20c, and the second beam member 30c, and the structure near the joint between the column member 10d, the first beam member 20d, and the second beam member 30d are almost the same as the structure near the joint between the column member 10c, the first beam member 20c, and the second beam member 30a, so descriptions of these will be omitted.

[0024] Fig. 3 is an enlarged perspective view of part III shown in Fig. 2. Fig. 4 is an enlarged side view of the building unit 100 as viewed from the direction of arrow IV shown in Fig. 3. Fig. 5 is a cross-sectional view taken along line VV shown in Fig. 4. Fig. 6 is a cross-sectional view taken along line VI-VI shown in Fig. 5. Fig. 7 is a cross-sectional view taken along line VII-VII shown in Fig. 5.

[0025] As shown in Figures 3, 4, 6, and 7, the first beam member 20c is an H-shaped steel having a web 21 and flanges 22, 23, 24, and 25. The flange 22 extends from the upper end of the web 21 in the inter-beam direction. The flange 23 extends from the upper end of the web 21 in the inter-beam direction on the opposite side from the flange 22. The flange 24 extends from the lower end of the web 21 in the inter-beam direction. The flange 24 is disposed at a distance from the flange 22 in the height direction. The flange 25 extends from the lower end of the web 21 in the inter-beam direction on the opposite side from the flange 24. The flange 25 is disposed at a distance from the flange 23 in the height direction. Hereinafter, the flanges 22 and 23 will also be referred to as the "upper flange 22" and the "upper flange 23," respectively, and the flanges 24 and 25 will also be referred to as the "lower flange 24" and the "lower flange 25," respectively.

[0026] The web 21 extends above the column member 10c. The lower flanges 24, 25 are joined to the end face 11 of the column member 10c. Therefore, the lower flanges 24, 25 function as diaphragms arranged across the column member 10c. When a horizontal force (lateral force) generated by an earthquake or wind is applied to the first beam member 20c, the horizontal force is transmitted and dispersed across the entire cross section of the column member 10c. This makes it possible to suppress local deformation of the column member 10c. This prevents the column member 10c from being crushed by the first beam member 20c, and increases the rigidity of the building unit 100.

[0027] The second beam member 30a is an H-shaped steel having a web 31 and flanges 32, 33, 34, and 35. The flange 32 extends in the longitudinal direction from the upper end of the web 31. The flange 33 extends in the longitudinal direction from the upper end of the web 31 on the opposite side to the flange 32. The flange 34 extends in the longitudinal direction from the lower end of the web 31. The flange 34 is disposed at a distance from the flange 32 in the height direction. The flange 35 extends in the longitudinal direction from the lower end of the web 31 on the opposite side to the flange 34. The flange 35 is disposed at a distance from the flange 33 in the height direction. Hereinafter, the flanges 32 and 33 will also be referred to as the "upper flange 32" and the "upper flange 33," respectively, and the flanges 34 and 35 will also be referred to as the "lower flange 34" and the "lower flange 35," respectively.

[0028] The upper flanges 32 and 33 of the second beam member 30a are joined to the upper flange 23 of the first beam member 20c. The lower flanges 34 and 35 of the second beam member 30a are joined to the lower flange 25 of the first beam member 20c.

[0029] The building unit 100 further includes rib plates 41, 42, 43, 44, 45, and 46 as reinforcing bodies provided on the first beam member 20c.

[0030] As shown in FIG. 6, the rib plate 41 is provided across the upper flange 22 and the lower flange 24 of the first beam member 20c. The rib plate 41 is joined to the upper flange 22 and the lower flange 24 by welding, and is also joined to the web 21 by welding. A notch 41a is formed at the upper end of the rib plate 41 on the web 21 side. The notch 41a forms a gap at the corner between the web 21 and the upper flange 22. A notch 41b is formed at the lower end of the rib plate 41 on the web 21 side. The notch 41b forms a gap at the corner between the web 21 and the lower flange 24.

[0031] The rib plate 42 is provided across the upper flange 23 and the lower flange 25 of the first beam member 20c. The rib plate 42 is joined to the upper flange 23 and the lower flange 25 by welding, and is also joined to the web 21 by welding. Like the rib plate 41, the rib plate 42 has notches 42a and 42b formed therein. The notch 42a forms a gap at the corner between the web 21 and the upper flange 23, and the notch 42b forms a gap at the corner between the web 21 and the lower flange 25.

[0032] As shown in Fig. 7, the rib plate 43 is provided across the web 21 and upper flange 22 of the first beam member 20c. The rib plate 43 is joined to the web 21 and upper flange 22 by welding. A notch 43a is formed at the upper end of the rib plate 43 on the web 21 side. The notch 43a forms a gap at the corner between the web 21 and the upper flange 22.

[0033] The rib plate 44 is provided across the web 21 and upper flange 23 of the first beam member 20c. The rib plate 44 is joined to the web 21 and upper flange 23 by welding. Like the rib plate 43, the rib plate 44 has a notch 44a formed therein. The notch 44a forms a gap at the corner between the web 21 and the upper flange 23.

[0034] The rib plate 45 is provided across the web 21 and the lower flange 24 of the first beam member 20c. The rib plate 45 is joined to the web 21 and the lower flange 24 by welding. A notch 45a is formed at the lower end of the rib plate 45 on the web 21 side. The notch 45a forms a gap at the corner between the web 21 and the lower flange 24.

[0035] The rib plate 46 is provided across the web 21 and the lower flange 25 of the first beam member 20c. The rib plate 46 is joined to the web 21 and the lower flange 25 by welding. Like the rib plate 45, the rib plate 46 has a notch 46a formed therein. The notch 46a forms a gap at the corner between the web 21 and the lower flange 25.

[0036] As shown in Figures 4 and 7, the rib plate 43 and the rib plate 45 are spaced apart in the height direction. The rib plate 44 and the rib plate 46 are spaced apart in the height direction. As shown in Figure 5, a plurality of rib plates 45 are provided at intervals in the girder direction. A plurality of rib plates 46 are provided at intervals in the girder direction. The rib plate 41 is disposed between the rib plates 45 adjacent to each other in the girder direction. The rib plate 42 is disposed between the rib plates 46 adjacent to each other in the girder direction. As shown in Figures 5 and 7, the rib plates 45, 46 are located on extensions of the column member 10c.

[0037] Although not shown in the figures, multiple rib plates 43 are provided at intervals in the girder direction. Multiple rib plates 44 are provided at intervals in the girder direction. Rib plate 41 is arranged between adjacent rib plates 43 in the girder direction. Rib plate 42 is arranged between adjacent rib plates 44 in the girder direction.

[0038] Figure 8 is a schematic diagram illustrating the deformation that occurs in the building unit 100 when a horizontal force is applied to the first beam member 20c. In Figure 8, the outer shape of the building unit 100 after deformation is shown by a two-dot chain line, and for ease of explanation, the deformation of the building unit 100 is exaggerated. When a horizontal force is applied to the first beam member 20c as shown in Figure 8, a bending moment occurs in the column member 10c, compressing one side in the inter-beam direction and pulling the other side. If the bottom flanges 24, 25 deform so as to be inclined relative to the web 21, the bending moment occurring in the column member 10c becomes large, and there is a risk of localized deformation.

[0039] In the building unit 100, the rib plates 45, 46 are located on extensions of the column member 10c. Therefore, the rib plates 45, 46 hold the bottom flanges 24, 25 and the web 21 against the compression and tension acting on the column member 10c, and prevent the bottom flanges 24, 25 from tilting relative to the web 21. This makes it possible to suppress the bending moment acting on the column member 10c. This makes it possible to further suppress local deformation of the column member 10c, and to further increase the rigidity of the building unit 100.

[0040] In the above embodiment, the rib plates 41, 42, 43, 44, 45, and 46 are provided to reinforce the pillar members 10a, 10b, 10c, and 10d. In the present invention, the rib plates 41, 42, 43, 44, 45, and 46 may be provided to reinforce at least one of the pillar members 10a, 10b, 10c, and 10d.

[0041] As shown in Figure 1, the bottom flanges 24, 25 of the first beam member 20c in the building unit 100a face the foundation 2. The anchor bolts of the foundation fastening means 3 pass through the bottom flanges 24, 25. The foundation fastening means 3 fastens the building unit 100a and the foundation 2 together by threading nuts onto the anchor bolts.

[0042] Figure 9 is an enlarged perspective view of the building 1 showing the periphery of the connecting structure 300. Figure 10 is an enlarged plan view of the periphery of the connecting structure 300 as viewed from the direction of arrow X shown in Figure 9. Figure 11 is a cross-sectional view taken along line XI-XI shown in Figure 10. Figures 9, 10, and 11 show a portion of the building unit 100a and a portion of the building unit 100c.

[0043] As shown in Figure 9, the second beam member 30d of the building unit 100a is an H-shaped steel having a web 31 and flanges 32, 33, 34, and 35, similar to the second beam member 30a (see Figure 3). The second beam member 30b of the building unit 100c is an H-shaped steel having a web 31 and flanges 32, 33, 34, and 35, similar to the second beam member 30a (see Figure 3).

[0044] 9 and 11, the web 31 of building unit 100a and the web 31 of building unit 100c are spaced apart in the girder direction. The flange 32 of building unit 100a extends from the web 31 of building unit 100a towards the flange 32 of building unit 100c. The flange 32 of building unit 100c extends from the web 31 of building unit 100c towards the flange 32 of building unit 100a.

[0045] The connecting structure 300 comprises a plate member 310, a first fastening means 320 and a second fastening means 330. The plate member 310 is overlapped with the flange 32 of the building unit 100a and the flange 32 of the building unit 100c.

[0046] A first through hole 311 and a second through hole 312 are formed in the plate member 310. The first through hole 311 and the second through hole 312 pass through the plate member 310 in the height direction. A first through hole 32a is formed in the flange 32 of the building unit 100a. The first through hole 32a passes through the flange 32 of the building unit 100a in the height direction. The first through hole 32a communicates with the first through hole 311. A second through hole 32b is formed in the flange 32 of the building unit 100c. The second through hole 32b passes through the flange 32 of the building unit 100c in the height direction. The second through hole 32b communicates with the second through hole 312.

[0047] The first fastening means 320 includes a bolt 321 inserted into the first through hole 311 and the first through hole 32a, and a nut 322 screwed onto the bolt 321. When the nut 322 screwed onto the bolt 321 inserted into the first through hole 311 and the first through hole 32a, the plate member 310 and the flange 32 of the building unit 100a are fastened together.

[0048] The second fastening means 330 includes a bolt 331 inserted into the second through hole 312 and the second through hole 32b, and a nut 332 screwed onto the bolt 331. When the nut 332 screwed onto the bolt 331 inserted into the second through hole 312 and the second through hole 32b, the plate member 310 and the flange 32 of the building unit 100c are fastened together.

[0049] As described above, in this embodiment, the plate member 310 is overlapped and fastened to the flange 32 of the building unit 100a, and the plate member 310 is overlapped and fastened to the flange 32 of the building unit 100c. Therefore, the building units 100a and 100c can be connected without providing any member between the flange 32 of the building unit 100a and the flange 32 of the building unit 100c. This makes it possible to narrow the gap between the building units 100a and 100c.

[0050] Furthermore, in the connection structure 300, the building units 100a and 100c can be connected in the vicinity of the column member 10d and the first beam member 20d of the building unit 100a, and in the vicinity of the column member 10c and the first beam member 20d of the building unit 100c. Therefore, the rigidity of the building 1 can be increased.

[0051] Figure 12 is a diagram for explaining a method for constructing the building 1, and is shown corresponding to Figure 11. In the method for constructing the building 1 according to this embodiment, first, the building units 100a, 100b, 100c, and 100d are assembled. The building units 100a, 100b, 100c, and 100d are assembled, for example, in a factory.

[0052] Next, the building units 100a, 100b, 100c, and 100d are transported to the site. As shown in FIG. 1, the building units 100a and 100c are placed on the foundation 2. This allows the building units 100a and 100c to be aligned in the girder direction. The building units 100a and 100c are connected to the foundation 2 using foundation fastening means 3. The building units 100a and 100c are connected to each other using unit fastening means 4 and a connecting structure 300.

[0053] As shown in Figure 12, when connecting building units 100a and 100c using connecting structure 300, openings 31a formed in web 31 of building unit 100a are used. Openings 31a may be formed in web 31 of second beam member 30d before assembling building units 100a, or may be formed in web 31 of second beam member 30d after assembling building units 100a. Openings 31a are preferably formed before placing building units 100a on foundation 2.

[0054] After placing the building units 100a, 100c on the foundation 2 and lining up the building units 100a, 100c in the girder direction, the bolt 321 is inserted into the first through hole 311 of the plate member 310 and the first through hole 32a of the flange 32 of the building unit 100a. Next, a nut 322 is inserted through the opening 31a between the web 31 of the building unit 100a and the web 31 of the building unit 100c. Thereafter, a worker's hand or a jig is inserted through the opening 31a to hold the nut 322, and the bolt 321 and the nut 322 are rotated relative to each other until the bolt 321 and the nut 322 are screwed together. This fastens the plate member 310 and the flange 32 of the building unit 100a using the first fastening means 320.

[0055] Next, the bolt 331 is inserted into the second through hole 312 of the plate member 310 and the second through hole 32b of the flange 32 of the building unit 100c. Next, the nut 332 is inserted through the opening 31a between the web 31 of the building unit 100a and the web 31 of the building unit 100c. Thereafter, a worker's hand or a jig is inserted through the opening 31a to hold the nut 332, and the bolt 331 and the nut 332 are rotated relative to each other until they are screwed together. This fastens the plate member 310 to the flange 32 of the building unit 100c using the second fastening means 330. The plate member 310 may be fastened to the flange 32 of the building unit 100c using the second fastening means 330 before fastening the plate member 310 to the flange 32 of the building unit 100a using the first fastening means 320.

[0056] Next, the opening 31a is closed. Specifically, a plate having approximately the same outer shape as the opening 31a is prepared and fitted into the opening 31a. The plate is then welded to the periphery of the opening 31a to close the opening 31a. By closing the opening 31a, the rigidity of the web 31 of the building unit 100a can be increased.

[0057] In the example shown in Figure 12, the opening 31a is formed only in the web 31 of the building unit 100a. The opening 31a may also be formed in the web 31 of the building unit 100c. The openings 31a may be formed in both the web 31 of the building unit 100a and the web 31 of the building unit 100c.

[0058] Next, as shown in Figure 1, building unit 100b is stacked on building unit 100a, and building unit 100d is stacked on building unit 100c. This results in building units 100b and 100d being aligned in the girder direction. Building unit 100b and building unit 100d are connected to each other using unit fastening means 4 and a connecting structure 300. The connection between building unit 100b and building unit 100d using the connecting structure 300 is almost the same as the connection between building unit 100a and building unit 100c, so a detailed description thereof will be omitted here.

[0059] This completes the construction of the building 1. The connection of building unit 100a and building unit 100c to the foundation 2 may be performed after building unit 100b has been stacked on building unit 100a and building unit 100d has been stacked on building unit 100c. The connection of building unit 100a and building unit 100c may be performed after building unit 100b has been stacked on building unit 100a and building unit 100d has been stacked on building unit 100c.

[0060] <First modified example of connecting structure> Figure 13 is a cross-sectional view of a connecting structure 400 pertaining to a first modified example, and is shown corresponding to Figure 11. In the connecting structure 300 shown in Figure 11, the bolt 321 of the first fastening means 320 is inserted from above into the first through hole 311 of the plate member 310 and then into the first through hole 32a of the building unit 100a, and the nut 322 of the first fastening means 320 is screwed onto the bolt 321 from below. The bolt 331 of the second fastening means 330 is inserted from above into the second through hole 312 of the plate member 310 and then into the second through hole 32b of the building unit 100c, and the nut 332 of the second fastening means 330 is screwed onto the bolt 331 from below.

[0061] 13, in the connecting structure 400, the bolt 321 of the first fastening means 320 is inserted from below into the first through hole 32a of the building unit 100a and then into the first through hole 311 of the plate member 310, and the nut 322 of the first fastening means 320 is screwed onto the bolt 321 from above. The bolt 331 of the second fastening means 330 is inserted from below into the second through hole 32b of the building unit 100c and then into the second through hole 312 of the plate member 310, and the nut 332 of the second fastening means 330 is screwed onto the bolt 331 from above.

[0062] In the connecting structure 400, the distance between the building units 100a and 100c can also be narrowed. Furthermore, the building units 100a and 100c can be connected in the vicinity of the column member 10d and the first beam member 20d of the building unit 100a, and in the vicinity of the column member 10c and the first beam member 20d of the building unit 100c. Therefore, the rigidity of the building 1 can be increased.

[0063] The construction method for the building 1 including the connecting structure 400 is almost the same as the construction method for the building 1 including the connecting structure 300, except that bolts 321, 331 are inserted between the web 31 of the building unit 100a and the web 31 of the building unit 100c through openings 31a formed in the web 31 of the building unit 100a. Therefore, a detailed explanation of the construction method for the building 1 including the connecting structure 400 will be omitted here.

[0064] <Second modified example of connecting structure> Figure 14 is a cross-sectional view of a connecting structure 500 according to a second modified example, and is shown corresponding to Figure 12. Figure 14 shows the state before the plate member 310 is fastened to the flange 32 of the building unit 100a and the flange 32 of the building unit 100c.

[0065] In the connecting structure 300 shown in Figure 12, the nut 322 of the first fastening means 320 is not fixed to the flange 32 of the building unit 100a when it is not threaded onto the bolt 321. Similarly, the nut 332 of the second fastening means 330 is not fixed to the flange 32 of the building unit 100c when it is not threaded onto the bolt 331.

[0066] In the connection structure 500, as shown in Figure 14, the nut 322 of the first fastening means 320 is fixed to the flange 32 of the building unit 100a by welding. Similarly, the nut 332 of the second fastening means 330 is fixed to the flange 32 of the building unit 100c by welding. In other words, the nuts 322, 332 are fixed to the flanges 32 of the building units 100a, 100c via weld beads 523, 533, respectively. The nuts 322, 332 may also be fixed to the flanges 32 of the building units 100a, 100c by a method other than welding. The nuts 322, 332 only need to be fixed to the flanges 32 of the building units 100a, 100c when not threaded onto the bolts 321, 331.

[0067] The nuts 322, 332 may be fixed to the flanges 32 of the second beam members 30d, 30b before assembling the building units 100a, 100c, or may be fixed to the flanges 32 of the second beam members 30d, 30b after assembling the building units 100a, 100c. The nuts 322, 332 may be fixed to the flanges 32 of the second beam members 30d, 30b before placing the building units 100a, 100c on the foundations 2 and aligning them in the girder direction.

[0068] In the connecting structure 500, the distance between the building units 100a and 100c can also be narrowed. Furthermore, the building units 100a and 100c can be connected in the vicinity of the column member 10d and the first beam member 20d of the building unit 100a, and in the vicinity of the column member 10c and the first beam member 20d of the building unit 100c. Therefore, the rigidity of the building 1 can be increased.

[0069] In the connecting structure 500, the nuts 322, 332 of the first fastening means 320 and the second fastening means 330 are fixed to the flanges 32 of the building units 100a, 100c when they are not threaded onto the bolts 321, 331. This eliminates the need to insert the nuts 322, 332 through the openings 31a (see FIG. 12) between the webs 31 of the building units 100a, 100c. Furthermore, when threading the nuts 322, 332 onto the bolts 321, 331, it is no longer necessary for an operator to hold the nuts 322, 332 by hand or with a jig. This means that the openings 31a (see FIG. 12) required in the connecting structures 300, 400 are no longer necessary. This makes it easier to connect the building units 100a and 100c.

[0070] The construction method for the building 1 equipped with the connecting structure 500 is substantially the same as the construction method for the building 1 equipped with the connecting structure 300, except that there is no step of inserting the nuts 322, 332 through the openings 31a (see FIG. 12) between the webs 31 of the building units 100a, 100c, and there is no work of holding the nuts 322, 332 by hand or with a tool when screwing the nuts 322, 332 into the bolts 321, 331. Therefore, a detailed explanation of the construction method for the building 1 equipped with the connecting structure 500 will be omitted here.

[0071] <Third modified example of connecting structure> Figure 15 is a cross-sectional view of a connecting structure 600 according to a third modified example, and is shown corresponding to Figure 12. Figure 15 shows the state before the plate member 310 is fastened to the flange 32 of the building unit 100a and the flange 32 of the building unit 100c.

[0072] In the connecting structure 500 shown in FIG. 14, the nuts 322, 332 of the first fastening means 320 and the second fastening means 330 are fixed to the flanges 32 of the building units 100a, 100c in a state where they are not threaded onto the bolts 321, 331.

[0073] 15, in the connection structure 600, the bolts 321, 331 of the first fastening means 320 and the second fastening means 330 are fixed to the flanges 32 of the building units 100a, 100c without being threaded into the nuts 322, 332. The bolts 321, 331 are fixed to the flanges 32 of the building units 100a, 100c via, for example, weld beads 523, 533, respectively. The bolts 321, 331 may also be fixed to the flanges 32 of the building units 100a, 100c by a method other than welding.

[0074] The bolts 321, 331 may be fixed to the flanges 32 of the second beam members 30d, 30b before assembling the building units 100a, 100c, or may be fixed to the flanges 32 of the second beam members 30d, 30b after assembling the building units 100a, 100c. The bolts 321, 331 may be fixed to the flanges 32 of the second beam members 30d, 30b before placing the building units 100a, 100c on the foundations 2 and arranging them in the girder direction.

[0075] In the connection structure 600, the distance between the building units 100a and 100c can also be narrowed. Furthermore, the building units 100a and 100c can be connected in the vicinity of the column member 10d and the first beam member 20d of the building unit 100a, and in the vicinity of the column member 10c and the first beam member 20d of the building unit 100c. This increases the rigidity of the building 1. Furthermore, the building units 100a and 100c can be connected more easily.

[0076] The construction method for the building 1 equipped with the connecting structure 600 is substantially the same as the construction method for the building 1 equipped with the connecting structure 400, except that there is no step of inserting the bolts 321, 331 through the openings 31a (see FIG. 12) between the webs 31 of the building units 100a, 100c, and there is no work of holding the bolts 321, 331 with the hands or jigs of workers when screwing the nuts 322, 332 into the bolts 321, 331. Therefore, a detailed explanation of the construction method for the building 1 equipped with the connecting structure 600 will be omitted here.

[0077] <Fourth modified example of connecting structure> Figure 16 is a cross-sectional view of a connecting structure 700 according to the fourth modified example, and is shown corresponding to Figure 12. Figure 16 shows the state before the plate member 310 is fastened to the flange 32 of the building unit 100a and the flange 32 of the building unit 100c.

[0078] In the connection structure 500 shown in Figure 14, the nuts 322, 332 of the first fastening means 320 and the second fastening means 330 are fixed to the flanges 32 of the building units 100a, 100c.

[0079] 16, in the connecting structure 700, the first fastening means 720 and the second fastening means 730 have female threaded holes 722 and 732, respectively, instead of the nuts 322 and 332. The female threaded holes 722 and 732 are formed in the flanges 32 of the building units 100a and 100c, respectively. The bolts 321 and 331 are threaded into the female threaded holes 722 and 732, respectively.

[0080] The female screw holes 722, 732 may be formed in the flanges 32 of the second beam members 30d, 30b before assembling the building units 100a, 100c, or may be formed in the flanges 32 of the second beam members 30d, 30b after assembling the building units 100a, 100c. The female screw holes 722, 732 may be formed in the flanges 32 of the second beam members 30d, 30b before placing the building units 100a, 100c on the foundation 2 and arranging them in the girder direction. The female screw holes 722, 732 are formed by, for example, threading the flanges 32 of the second beam members 30d, 30b.

[0081] In the connecting structure 700, the distance between the building units 100a and 100c can also be narrowed. Furthermore, the building units 100a and 100c can be connected in the vicinity of the column member 10d and the first beam member 20d of the building unit 100a, and in the vicinity of the column member 10c and the first beam member 20d of the building unit 100c. This increases the rigidity of the building 1. Furthermore, the opening 31a (see FIG. 12) required in the connecting structures 300 and 400 is no longer necessary, making it easier to connect the building units 100a and 100c.

[0082] The construction method for building 1 equipped with connecting structure 700 is almost the same as the construction method for building 1 equipped with connecting structure 500, except that bolts 321, 331 are screwed into female threaded holes 722, 732. Therefore, a detailed description of the construction method for building 1 equipped with connecting structure 700 will be omitted here.

[0083] Although not shown, female screw holes 722, 732 may be formed in the plate member 310 instead of the flanges 32 of the building units 100a, 100c. In this case, bolts 321, 331 are inserted between the webs 31 of the building units 100a, 100c and screwed from below into the female screw holes 722, 732. For this reason, it is necessary to form an opening 31a (see Figure 12) in the web 31 of the building unit 100a.

[0084] <Fifth modified example of connecting structure> Figure 17 is a cross-sectional view of a connecting structure 800 according to the fifth modified example, and is shown corresponding to Figure 12. Figure 17 shows the state before the plate member 310 is fastened to the flange 32 of the building unit 100a and the flange 32 of the building unit 100c.

[0085] In the connection structure 600 shown in Figure 15, the bolts 321, 331 of the first fastening means 320 and the second fastening means 330 are fixed to the flanges 32 of the building units 100a, 100c.

[0086] 17, in the connecting structure 800, the first fastening means 820 and the second fastening means 830 have shafts 821 and 831, respectively, instead of the bolts 321 and 331. The shafts 821 and 831 are provided on the flanges 32 of the building units 100a and 100c, respectively. Male threads are formed on the outer peripheries of the shafts 821 and 831. Nuts 322 and 332 are threaded onto the shafts 821 and 831, respectively.

[0087] The shafts 821, 831 may be provided on the flanges 32 of the second beam members 30d, 30b before assembling the building units 100a, 100c, or may be provided on the flanges 32 of the second beam members 30d, 30b after assembling the building units 100a, 100c. The shafts 821, 831 may be provided on the flanges 32 of the second beam members 30d, 30b before placing the building units 100a, 100c on the foundations 2 and arranging them in the girder direction.

[0088] The shafts 821, 831 are respectively attached to the flanges 32 of the building units 100a, 100c by welding. In other words, the shafts 821, 831 are respectively attached to the flanges 32 of the building units 100a, 100c via weld beads 823, 833. The shafts 821, 831 may also be attached to the flanges 32 of the building units 100a, 100c by methods other than welding.

[0089] In the connecting structure 800, the distance between the building units 100a and 100c can also be narrowed. Furthermore, the building units 100a and 100c can be connected in the vicinity of the column member 10d and the first beam member 20d of the building unit 100a, and in the vicinity of the column member 10c and the first beam member 20d of the building unit 100c. This increases the rigidity of the building 1. Furthermore, the opening 31a (see FIG. 12) required in the connecting structures 300 and 400 is no longer necessary, making it easier to connect the building units 100a and 100c.

[0090] The construction method for building 1 equipped with connecting structure 800 is almost the same as the construction method for building 1 equipped with connecting structure 600, except that nuts 322, 332 are screwed onto shafts 821, 831. Therefore, a detailed description of the construction method for building 1 equipped with connecting structure 800 will be omitted here.

[0091] Although not shown, shafts 821, 831 may be provided on the plate member 310 instead of the flanges 32 of the building units 100a, 100c. In this case, nuts 322, 332 are inserted between the webs 31 of the building units 100a, 100c and screwed onto the shafts 821, 831 from below. For this reason, it is necessary to form an opening 31a (see Figure 12) in the web 31 of the building unit 100a.

[0092] The connecting structures 300, 400, 500, 600, 700, and 800 may be used in combination. For example, the first fastening means 320 of the connecting structure 300 may be used to fasten the plate member 310 to the flange 32 of the building unit 100a, and the second fastening means 330 of the connecting structure 400 may be used to fasten the plate member 310 to the flange 32 of the building unit 100c. The first fastening means 320 of the connecting structure 500 may be used to fasten the plate member 310 to the flange 32 of the building unit 100a, and the second fastening means 330 of the connecting structure 600 may be used to fasten the plate member 310 to the flange 32 of the building unit 100c. The first fastening means 720 of the connecting structure 700 may be used to fasten the plate member 310 to the flange 32 of the building unit 100a, and the second fastening means 830 of the connecting structure 800 may be used to fasten the plate member 310 to the flange 32 of the building unit 100c.

[0093] <Sixth modified example of connecting structure> Fig. 18 is a partially enlarged plan view of a connection structure 900 according to a sixth modified example, and is shown corresponding to Fig. 10. Fig. 19 is a cross-sectional view taken along line XIX-XIX shown in Fig. 18.

[0094] In the connecting structures 300, 400, 500, 600, 700, 800, as shown in Figures 10 to 17, the building units 100a, 100c are connected to each other without any gaps. Specifically, the end face of the flange 32 of the building unit 100a and the end face of the flange 32 of the building unit 100c are in contact with each other. Although not shown, the end face of the flange 34 of the building unit 100a and the end face of the flange 34 of the building unit 100c are in contact with each other.

[0095] In the connection structure 900, as shown in Figures 18 and 19, the building units 100a, 100c are connected to each other with a gap in the girder direction. Specifically, a gap G is provided between the end face of the flange 32 of the building unit 100a and the end face of the flange 32 of the building unit 100c. Although not shown, a gap G is provided between the end face of the flange 34 of the building unit 100a and the end face of the flange 34 of the building unit 100c. The size of the gap G in the girder direction is, for example, 100 mm or less. The size of the gap G in the girder direction is more preferably 10 mm or less.

[0096] The construction method for the building 1 having the connecting structure 900 is almost the same as the construction method for the building 1 having the connecting structure 300 (FIG. 12). Therefore, a detailed description of the construction method for the building 1 having the connecting structure 900 will be omitted here.

[0097] If the size of the gap G in the girder direction is 100 mm or less, it is difficult for a worker to reach into the gap G. Even if a worker can reach into the gap G, it is difficult for the worker to work in the space between the web 31 of the building unit 100a and the web 31 of the building unit 100c.

[0098] In the construction method for the building 1 equipped with the connecting structure 900, bolts 321 and nuts 322, and bolts 331 and nuts 332 are screwed together using openings 31a (see FIG. 12) formed in the web 31 of the building unit 100a. This allows the plate member 910 to be fastened to the flange 32 of the building unit 100a, and the plate member 910 to be fastened to the flange 32 of the building unit 100a, without having to reach into the gap G. This allows the gap G between the building unit 100a and the building unit 100c to be 100 mm or less. Furthermore, the building units 100a and 100c can be connected near the column member 10d and first beam member 20d of the building unit 100a, and near the column member 10c and first beam member 20d of the building unit 100c. This increases the rigidity of the building 1.

[0099] <Seventh modified example of connecting structure> Fig. 20 is a partially enlarged plan view of a connection structure 1000 according to a seventh modified example, and is shown corresponding to Fig. 10. Fig. 21 is a cross-sectional view taken along line XXI-XXI shown in Fig. 20.

[0100] In the connecting structure 300, as shown in FIG. 10, the bolt 321 of the first fastening means 320 penetrates the flange 32 of the building unit 100a to fasten the flange 32 to the plate member 310, and the bolt 332 of the second fastening means 330 penetrates the flange 32 of the building unit 100c to fasten the flange 32 to the plate member 310.

[0101] In the connection structure 1000, as shown in Figures 20 and 21, bolts 321 of first fastening means 320 penetrate the flange 33 of the building unit 100a to fasten the flange 33 to the plate member 1010. Specifically, first through holes 33a are formed in the flange 33 of the building unit 100a. The first through holes 33a penetrate the flange 33 of the building unit 100a in the height direction. The first through holes 33a communicate with the first through holes 311 of the plate member 1010. When nuts 322 are screwed onto the bolts 321 inserted into the first through holes 311 and the first through holes 33a, the plate member 1010 and the flange 33 of the building unit 100a are fastened together.

[0102] Bolts 331 of the second fastening means 330 penetrate the flange 33 of the building unit 100c to fasten the flange 33 to the plate member 1010. Specifically, second through holes 33b are formed in the flange 33 of the building unit 100c. The second through holes 33b penetrate the flange 33 of the building unit 100c in the height direction. The second through holes 33b communicate with the second through holes 312 of the plate member 1010. When nuts 332 are screwed onto the bolts 331 inserted into the second through holes 312 and second through holes 33b, the plate member 1010 and the flange 33 of the building unit 100c are fastened together.

[0103] 20 and 21, a gap G is provided between the end face of the flange 32 of the building unit 100a and the end face of the flange 32 of the building unit 100c. The end face of the flange 32 of the building unit 100a and the end face of the flange 32 of the building unit 100c may be in contact with each other. In other words, the building units 100a, 100c may be connected to each other without providing the gap G.

[0104] In the connecting structure 1000, the distance between the building units 100a and 100c can also be narrowed. Furthermore, the building units 100a and 100c can be connected in the vicinity of the column member 10d and the first beam member 20d of the building unit 100a, and in the vicinity of the column member 10c and the first beam member 20d of the building unit 100c. This increases the rigidity of the building 1. Furthermore, the opening 31a (see FIG. 12) required in the connecting structures 300 and 400 is no longer necessary, making it easier to connect the building units 100a and 100c.

[0105] The construction method for the building 1 having the connecting structure 1000 is almost the same as the construction method for the building 1 having the connecting structure 300 (FIG. 12). Therefore, a detailed description of the construction method for the building 1 having the connecting structure 1000 will be omitted here.

[0106] The first fastening means 320, 720, 820 and second fastening means 330, 730, 830 of the connecting structures 400, 500, 600, 700, 800 may be used as the first fastening means 320 and second fastening means 330 of the connecting structure 1000. For example, the first fastening means 320 of the connecting structure 400 may be used to fasten the plate member 1010 to the flange 33 of the building unit 100a, and the second fastening means 330 of the connecting structure 400 may be used to fasten the plate member 1010 to the flange 33 of the building unit 100c. The first fastening means 320 of the connecting structure 500 may be used to fasten the plate member 1010 to the flange 33 of the building unit 100a, and the second fastening means 330 of the connecting structure 600 may be used to fasten the plate member 1010 to the flange 33 of the building unit 100c. The first fastening means 720 of the connecting structure 700 may be used to fasten the plate member 1010 to the flange 33 of the building unit 100a, and the second fastening means 830 of the connecting structure 800 may be used to fasten the plate member 1010 to the flange 33 of the building unit 100c.

[0107] <Eighth Modified Example of Connection Structure> Fig. 22 is a partially enlarged plan view of a connection structure 1100 according to an eighth modified example, and is shown corresponding to Fig. 10. Fig. 23 is a cross-sectional view taken along line XXIII-XXIII shown in Fig. 22.

[0108] In the connecting structure 1000, as shown in FIG. 21, the bolts 332 of the second fastening means 330 pass through the flanges 33 of the building units 100c to fasten the flanges 33 and the plate members 1010 together.

[0109] 22 and 23, in the connection structure 1100, bolts 331 of second fastening means 330 penetrate flange 32 of building unit 100c to fasten flange 32 to plate member 1110. Specifically, second through holes 32b are formed in flange 32 of building unit 100c. Second through holes 32b penetrate flange 33 of building unit 100c in the height direction. Second through holes 32b communicate with second through holes 312 of plate member 1110. When nuts 332 are screwed onto bolts 331 inserted into second through holes 312 and second through holes 32b, plate member 1110 and flange 33 of building unit 100c are fastened together.

[0110] 22 and 23, a gap G is provided between the end face of the flange 32 of the building unit 100a and the end face of the flange 32 of the building unit 100c. The end face of the flange 32 of the building unit 100a and the end face of the flange 32 of the building unit 100c may be in contact with each other. In other words, the building units 100a, 100c may be connected to each other without providing the gap G.

[0111] In the connecting structure 1100, the distance between the building units 100a and 100c can also be narrowed. Furthermore, the building units 100a and 100c can be connected in the vicinity of the column member 10d and the first beam member 20d of the building unit 100a, and in the vicinity of the column member 10c and the first beam member 20d of the building unit 100c. Therefore, the rigidity of the building 1 can be increased.

[0112] The construction method for the building 1 having the connecting structure 1000 is almost the same as the construction method for the building 1 having the connecting structure 300 (FIG. 12). Therefore, a detailed description of the construction method for the building 1 having the connecting structure 1000 will be omitted here.

[0113] The first fastening means 320, 720, 820 and second fastening means 330, 730, 830 of the connecting structures 400, 500, 600, 700, 800 may be used as the first fastening means 320 and second fastening means 330 of the connecting structure 1100. For example, the first fastening means 320 of the connecting structure 400 may be used to fasten the plate member 1110 to the flange 33 of the building unit 100a, and the second fastening means 330 of the connecting structure 400 may be used to fasten the plate member 1110 to the flange 32 of the building unit 100c. The first fastening means 320 of the connecting structure 500 may be used to fasten the plate member 1110 to the flange 33 of the building unit 100a, and the second fastening means 330 of the connecting structure 600 may be used to fasten the plate member 1110 to the flange 32 of the building unit 100c. The first fastening means 720 of the connecting structure 700 may be used to fasten the plate member 1110 to the flange 33 of the building unit 100a, and the second fastening means 830 of the connecting structure 800 may be used to fasten the plate member 1110 to the flange 32 of the building unit 100c.

[0114] The bolt 321 of the first fastening means 320 may pass through the flange 32 of the building unit 100a to fasten the flange 32 to the plate member 1110, and the bolt 331 of the second fastening means 330 may pass through the flange 33 of the building unit 100c to fasten the flange 33 to the plate member 1110.

[0115] In the above embodiment, the case where the building units 100a, 100c arranged in the girder direction are connected is described. However, the present invention is also applicable to connecting building units arranged in the span direction.

[0116] Second Embodiment Next, a building unit 200 and a connecting structure 1200 according to a second embodiment of the present invention will be described with reference to Figures 24 to 29. Differences from the first embodiment will be mainly described below, and components that are the same as or equivalent to those described in the first embodiment will be denoted by the same reference numerals in the figures and will not be described again. A schematic diagram of a building 1 equipped with building units 200 is almost the same as the schematic diagram shown in Figure 1, so it will not be shown here.

[0117] Fig. 24 is a perspective view of a building unit 200. In the building unit 100 according to the first embodiment, as shown in Fig. 2, the first beam members 20a and 20c extend above the column members 10a, 10b, 10c, and 10d, and the first beam members 20b and 20d extend below the column members 10a, 10b, 10c, and 10d. In the building unit 200 according to this embodiment, as shown in Fig. 24, the first beam members 20a and 20c do not extend above the column members 10a, 10b, 10c, and 10d, and the first beam members 20b and 20d do not extend below the column members 10a, 10b, 10c, and 10d. In this respect, this embodiment differs from the first embodiment.

[0118] The building unit 200 includes reinforcing members 240 arranged above and below the column members 10a, 10b, 10c, and 10d. The first beam members 20a, 20b, 20c, and 20d are joined to the column members 10a, 10b, 10c, and 10d via the reinforcing members 240. The second beam members 30a, 30b, 30c, and 30d are joined to the column members 10a, 10b, 10c, and 10d via the reinforcing members 240.

[0119] The first beam member 20a connects the pillar members 10a and 10b via reinforcing members 240, 240. The first beam member 20b connects the pillar members 10a and 10b via reinforcing members 240, 240. The first beam member 20c connects the pillar members 10c and 10d via reinforcing members 240, 240. The first beam member 20b connects the pillar members 10c and 10d via reinforcing members 240, 240. The second beam member 30a connects the pillar members 10a and 10c via reinforcing members 240, 240. The second beam member 30b connects the pillar members 10a and 10c via reinforcing members 240, 240. The second beam member 30c connects the pillar members 10b and 10d via reinforcing members 240, 240. The second beam member 30b connects the pillar members 10b and 10d via reinforcing members 240, 240.

[0120] As in the first embodiment, the following will describe the structure in the vicinity of the joint between the pillar member 10c, the first beam member 20c, and the second beam member 30a, and will omit a description of the structure in the vicinity of other joints.

[0121] Figure 25 is an enlarged perspective view of part XXV shown in Figure 24. Figure 26 is an enlarged side view of the building unit 200 as viewed from the direction of arrow XXVI shown in Figure 25. Figure 27 is a cross-sectional view taken along line XXVII-XXVII shown in Figure 26. Figure 28 is a cross-sectional view taken along line XXVIII-XXVIII shown in Figure 27.

[0122] As shown in FIGS. 25 to 28, the reinforcing member 240 includes a body 241, an upper diaphragm 242 provided at the upper end of the body 241, and a lower diaphragm 243 provided at the lower end of the body 241. The cross-sectional shape of the body 241 is the same as that of the pillar member 10c. The body 241 is obtained by slicing the same material as the pillar member 10c at a height corresponding to the web 21 of the first beam member 20c. The height of the web 31 of the second beam member 30a is the same as that of the web 21 of the first beam member 20c, and the height of the body 241 is the height of the web 31 of the second beam member 30a.

[0123] The web 21 of the first beam member 20c extends to the body portion 241 and is joined to the side surface of the body portion 241. The web 31 of the second beam member 30a extends to the body portion 241 and is joined to the side surface of the body portion 241.

[0124] The upper diaphragm 242 extends in the horizontal direction and closes the upper end opening of the body portion 241. The upper diaphragm 242 is joined to the upper flanges 22, 23 of the first beam member 20c and the upper flanges 32, 33 of the second beam member 30a.

[0125] The outer shape of the upper diaphragm 242 is larger than the outer shape of the body 241, and the upper diaphragm 242 protrudes from the side surface of the body 241. A notch 31b is formed at the upper end of the web 31 on the body 241 side. The notch 31b forms a gap at the corner between the body 241 and the upper diaphragm 242.

[0126] The lower diaphragm 243 extends laterally and closes the lower end opening of the body 241. The lower diaphragm 243 is joined to the lower flanges 24, 25 of the first beam member 20c and the lower flanges 34, 35 of the second beam member 30a. The lower diaphragm 243 is joined to the end face 11 of the column member 10c. Therefore, when a horizontal force (lateral force) generated by an earthquake or wind is applied to the first beam member 20c and the second beam member 30a, the horizontal force is transmitted and dispersed across the entire cross section of the column member 10c. This makes it possible to suppress local deformation of the column member 10c. This prevents the column member 10c from being crushed by the first beam member 20c, thereby increasing the rigidity of the building unit 200.

[0127] The outer shape of the lower diaphragm 243 is larger than the outer shape of the body 241, and the lower diaphragm 243 protrudes from the side surface of the body 241. A notch 31c is formed at the lower end of the web 31 on the body 241 side. The notch 31c forms a gap at the corner between the body 241 and the lower diaphragm 243.

[0128] Figure 29 is an enlarged perspective view showing the periphery of a connecting structure 1200 that connects the building units 200 shown in Figure 24. The connecting structure 1200 has a similar structure to the connecting structure 300 shown in Figure 11. Therefore, a detailed description of the connecting structure 1200 will be omitted here. The connecting structure 1200 may have a similar structure to the connecting structure 400 (Figure 13), connecting structure 500 (Figure 14), connecting structure 600 (Figure 15), connecting structure 700 (Figure 16), connecting structure 800 (Figure 17), connecting structure 900 (Figure 19), connecting structure 1000 (Figure 21), and connecting structure 1100 (Figure 23).

[0129] The method for constructing the building 1 according to this embodiment is almost the same as the method for constructing the building 1 according to the first embodiment, and therefore a description thereof will be omitted here.

[0130] In the above embodiment, the reinforcing member 240 is provided to reinforce the column members 10a, 10b, 10c, and 10d. In the present invention, the reinforcing member 240 may be provided to reinforce at least one of the column members 10a, 10b, 10c, and 10d.

[0131] Although the embodiments of the present invention have been described above, the above embodiments merely illustrate some of the application examples of the present invention, and are not intended to limit the technical scope of the present invention to the specific configurations of the above embodiments.

[0132] In the above embodiment, the first beam members 20a, 20b, 20c, 20d and the second beam members 30a, 30b, 30c, 30d are H-shaped steel. The first beam members 20a, 20b, 20c, 20d and the second beam members 30a, 30b, 30c, 30d are not limited to H-shaped steel. The first beam members 20a, 20b, 20c, 20d and the second beam members 30a, 30b, 30c, 30d may also be channel steel. The first beam members 20a, 20b, 20c, 20d and the second beam members 30a, 30b, 30c, 30d may only have webs and flanges. [Explanation of symbols]

[0133] 1: Building 2: Basics 3: Fastening means 4: Fastening means 10a, 10b, 10c, 10d: Column members 11: End face 20a, 20b, 20c, 20d: First beam member 21: Web 22, 23: Upper flange 24, 25: Lower flange 30a, 30b, 30c, 30d: second beam members 31: Web 31a:Aperture 32, 33: Upper flange 34, 35: Lower flange 41: Rib plate (reinforcement) 42: Rib plate (reinforcement) 43: Rib plate (reinforcement) 44: Rib plate (reinforcement) 45: Rib plate (reinforcement) 46: Rib plate (reinforcement) 100, 100a, 100b, 100c, 100d, 200: Building units 240: Reinforcement 241: Torso 242: Upper diaphragm 243: Lower diaphragm 300, 400, 500, 600, 700, 800, 900, 1000, 1100: Consolidated structure 310, 1010, 1110: Plate member 311: First through hole 312: Second through hole 320, 720, 820: First fastening means 330, 730, 830: Second fastening means 321, 331: Bolt 322, 332: Nut 523, 533: Weld bead 722, 732: Female threaded holes 821, 831: Shaft 823, 833: Weld bead

Claims

1. A building unit comprising: a plurality of column members extending in a height direction and arranged at intervals in a horizontal direction; A beam member made of an H-shaped steel beam that connects the plurality of column members and has a web and a pair of flanges; a reinforcing member provided on the beam member, configured to transmit the horizontal force applied to the beam member to the end face of at least one of the plurality of column members via one of the pair of flanges of the H-shaped steel, and to distribute the force throughout the entire cross section of the at least one column member to suppress local deformation, thereby reinforcing the at least one column member.

2. the reinforcement member includes a rib plate provided across the web and the one flange, The rib plate is located on an extension line of the at least one pillar member.

2. A building unit according to claim 1.

3. The reinforcing body is a body portion disposed above or below the at least one pillar member; a diaphragm provided at an upper end or a lower end of the body portion and joined to the end surface of the at least one pillar member, The diaphragm is joined to the one flange.

2. A building unit according to claim 1.

4. A plurality of building units according to any one of claims 1 to 3, The plurality of building units are fastened together. architecture.

5. at least one building unit of the plurality of building units is fastened to a foundation using fastening means; the other flange of the pair of flanges of the at least one building unit faces the foundation; The fastening means includes an anchor bolt that protrudes from the foundation and penetrates the other flange, and a nut that is screwed onto the anchor bolt. The building according to claim 4.

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