Building

Abstract

A building (10) comprises a sloped roof (11), a first outer wall (12), and a second outer wall (13). The first outer wall (12) is positioned on a low water-gradient side of the sloped roof (11). The second outer wall (13) is set back on a high water-gradient side of the sloped roof (11) relative to the first outer wall (12). The second outer wall (13) has a lower horizontal structural member (31), an upper horizontal structural member (32), and a connecting member (33). The lower horizontal structural member (31) is positioned at the same height as an eaves horizontal structural member (21) positioned at the upper end of the first outer wall (12). The upper horizontal structural member (32) is positioned on the upper side of the lower horizontal structural member (31). The connecting member (33) is disposed between the lower horizontal structural member (31) and the upper horizontal structural member (32), and connects the lower horizontal structural member (31) and the upper horizontal structural member (32). The connecting member (33) comprises a bundle member (33a).

Description

building

[0001] The present disclosure relates to buildings.

[0002] The building described in Patent Document 1 has a sloped roof, a first exterior wall located on the downstream side of the sloped roof, and a second exterior wall set back from the first exterior wall on the upstream side of the sloped roof. The second exterior wall has a lower cross member, an upper cross member, and a connecting member. The lower cross member is located at the same height as the eaves cross member located at the top end of the first exterior wall. The upper cross member is located above the lower cross member. The connecting member is disposed between the lower cross member and the upper cross member and connects the lower cross member and the upper cross member. The connecting member is composed of a rectangular frame member.

[0003] Japanese Patent Application Laid-Open No. 2019-85788

[0004] The smaller the setback amount of the second exterior wall relative to the first exterior wall, the smaller the vertical distance between the lower cross member and the upper cross member. Furthermore, the gentler the slope of the sloped roof, the smaller the vertical distance between the lower cross member and the upper cross member. When the vertical distance between the lower cross member and the upper cross member becomes small, it becomes difficult to position frame members between the lower cross member and the upper cross member. For this reason, there were limitations on the setback amount of the second exterior wall relative to the first exterior wall and the slope of the sloped roof.

[0005] (1) A building that is one aspect of the present disclosure comprises a sloped roof, a first exterior wall located on the belowwater side of the sloped roof, and a second exterior wall set back from the first exterior wall on the abovewater side of the sloped roof, wherein the second exterior wall has a lower cross member located at the same height as the eaves cross member located at the upper end of the first exterior wall, an upper cross member located above the lower cross member, and a connecting member arranged between the lower cross member and the upper cross member and connecting the lower cross member to the upper cross member, wherein the connecting member is composed of a beam member.

[0006] With this configuration, since the connecting member is made of a beam member, it is possible to place the connecting member between the lower cross member and the upper cross member even if the distance between them in the vertical direction is small. This makes it possible to reduce the setback amount of the second exterior wall relative to the first exterior wall and to make the slope of the sloped roof more gentle, thereby increasing the degree of freedom in the design of the building.

[0007] (2) In the building of (1) above, the upper cross member and the lower cross member each have a cross member web, an upper cross member flange provided at the upper end of the cross member web, and a lower cross member flange provided at the lower end of the cross member web, and the cross member web of the upper cross member and the cross member web of the lower cross member overlap in a planar view, and the bundle member has a bundle web that overlaps the cross member web in a planar view, an upper bundle flange provided at the upper end of the bundle web, and a lower bundle flange provided at the lower end of the bundle web.

[0008] According to this configuration, the bundle member can efficiently bear the vertical load. (3) In the building of (2) above, the bundle member further has side flanges provided on both ends of the bundle web.

[0009] This structure allows the beam members to efficiently withstand horizontal loads in the direction of extension of the upper and lower cross members, thereby increasing the strength of the second exterior wall against horizontal shaking caused by earthquakes and other events, without the need for reinforcing members such as braces.

[0010] (4) In the building described in (3) above, the width of the upper beam flange, the width of the lower beam flange, the width of the side flange, the width of the lower beam flange of the upper beam, and the width of the upper beam flange of the lower beam are the same.

[0011] According to this configuration, the beam members can bear vertical loads more stably. (5) In the building of any one of (2) to (4) above, the upper beam, the beam members, and the lower beam members are connected by connecting bolts that pass through the lower beam flange, the upper beam flange, the lower beam flange, and the upper beam flange of the lower beam member.

[0012] With this configuration, the upper beam, beam, and lower beam are all connected together with a single connecting bolt, which improves workability compared to when the beam and lower beam are connected with a bolt separate from the bolt connecting the upper beam and beam. Also, the connecting bolt itself can bear the tensile force.

[0013] (6) In the building of any one of (1) to (5) above, the second exterior wall has an exterior wall panel, and the exterior wall panel is attached to the lower cross member via a mounting member. With this configuration, it is not necessary to make the bundle member into a shape that allows the exterior wall panel to be attached, so the degree of freedom in the shape of the bundle member is increased.

[0014] (7) In the building described in (6) above, the mounting member and the lower cross member are connected by a plurality of mounting bolts arranged in the vertical direction, and the vertical dimension of the lower cross member is larger than the vertical dimension of the beam member.

[0015] With this configuration, the distance between the bolts in the vertical direction can be set larger than when the exterior wall panel is attached to the bundle member via the mounting member and the mounting member and the bundle member are connected by multiple mounting bolts aligned in the vertical direction, thereby preventing the load caused by the attachment of the exterior wall panel from being concentrated on the lower cross member.

[0016] The building of the present disclosure allows for greater freedom in design.

[0017] Fig. 4 is a perspective view of a building. Fig. 5 is a side view of a building. Fig. 6 is a side view of a second exterior wall. Fig. 7 is a cross-sectional view of the second exterior wall along line 4-4 in Fig. 3. Fig. 8 is a perspective view of a bundle member in an embodiment. Fig. 9 is a perspective view of a bundle member in a modified example.

[0018] A building 10 of this embodiment will be described with reference to Figures 1 to 5. The building 10 of this embodiment is a residential building. As shown in Figures 1 and 2, the building 10 has a sloped roof 11. The sloped roof 11 of this embodiment is a single-shed roof. If the slope angle of the sloped roof 11 of this embodiment is θ, then tan θ = 1 / 4 is satisfied. In the following description, if the slope direction of the sloped roof 11 is broken down into a vertical component and a horizontal component, the direction along the horizontal component will be referred to as the first direction X. The direction perpendicular to the first direction X and the vertical direction Z will be referred to as the second direction Y.

[0019] The building 10 comprises a first exterior wall 12 and a second exterior wall 13. The first exterior wall 12 and the second exterior wall 13 each constitute an exterior wall of the building 10 that extends along the second direction Y. The first exterior wall 12 is located on the downwater side of the sloped roof 11 in the first direction X. The first exterior wall 12 has eaves beams 21 as eaves cross members. The eaves beams 21 are located at the upper end of the first exterior wall 12. The eaves beams 21 extend in the second direction Y. The second exterior wall 13 is set back from the first exterior wall 12 toward the upwater side of the sloped roof 11. In this embodiment, the setback amount of the second exterior wall 13 from the first exterior wall 12 is 1 m.

[0020] The second exterior wall 13 has a lower beam 31 as a lower cross member, an upper beam 32 as an upper cross member, and a connecting member 33. The lower beam 31 is located at the same height as the eaves beam 21 of the first exterior wall 12. The upper beam 32 is located above the lower beam 31. The lower beam 31 and the upper beam 32 each extend in the second direction Y. The connecting member 33 is disposed between the lower beam 31 and the upper beam 32 in the vertical direction Z. The connecting member 33 connects the lower beam 31 and the upper beam 32 in the vertical direction Z. A plurality of connecting members 33 are provided at predetermined intervals in the second direction Y (see FIG. 1). Each connecting member 33 is composed of a bundle member 33a extending in the vertical direction Z. The lower beam 31 and the upper beam 32 are connected only by the bundle member 33a.

[0021] As shown in Figures 3 and 4, the lower girder 31 and the upper girder 32 are each made of H-shaped steel. The lower girder 31 and the upper girder 32 each have a girder web 40 as a cross member web, an upper girder flange 41 as an upper cross member flange, and a lower girder flange 42 as a lower cross member flange. The upper girder flange 41 is provided at the upper end of the girder web 40. The lower girder flange 42 is provided at the lower end of the girder web 40.

[0022] The girder web 40 of the upper girder 32 and the girder web 40 of the lower girder 31 overlap in a plan view. As the setback amount of the second exterior wall 13 relative to the first exterior wall 12 decreases, the height of the upper girder 32 decreases, and therefore the distance in the vertical direction Z between the lower girder flange 42 of the upper girder 32 and the upper girder flange 41 of the lower girder 31 decreases. Also, as the slope of the sloped roof 11 decreases, the height of the upper girder 32 decreases, and therefore the distance in the vertical direction Z between the lower girder flange 42 of the upper girder 32 and the upper girder flange 41 of the lower girder 31 decreases. In this embodiment, the distance in the vertical direction Z between the lower girder flange 42 of the upper girder 32 and the upper girder flange 41 of the lower girder 31 is 50 mm.

[0023] As shown in Figure 4, a beam mounting plate 43 is provided on the girder web 40 of the upper girder 32. A first gradient beam 14 and a second gradient beam 15 are attached to the beam mounting plate 43. The first gradient beam 14 and the second gradient beam 15 each extend parallel to the sloped roof 11. The first gradient beam 14 is located closer to the interior than the second exterior wall 13. The second gradient beam 15 is located closer to the exterior than the second exterior wall 13.

[0024] As shown in Figure 5, the bundle member 33a has a bundle web 50, an upper bundle flange 51, and a lower bundle flange 52. The bundle web 50, the upper bundle flange 51, and the lower bundle flange 52 are each flat. The upper bundle flange 51 is provided at the upper end of the bundle web 50. The lower bundle flange 52 is provided at the lower end of the bundle web 50.

[0025] As shown in Figures 3 and 4, the bundle member 33a is located between the lower girder flange 42 of the upper girder 32 and the upper girder flange 41 of the lower girder 31. The bundle web 50 extends in the second direction Y in a plan view. The bundle web 50 overlaps with the girder web 40 of the upper girder 32 and the girder web 40 of the lower girder 31 in a plan view. The upper bundle flange 51 is arranged so as to overlap the lower surface of the lower girder flange 42 of the upper girder 32. The lower bundle flange 52 is arranged so as to overlap the upper surface of the upper girder flange 41 of the lower girder 31.

[0026] The dimension of the lower beam 31 in the vertical direction Z and the dimension of the upper beam 32 in the vertical direction Z are each larger than the dimension of the bundle member 33a in the vertical direction Z. In this embodiment, the dimension of the bundle member 33a in the vertical direction Z is 50 mm.

[0027] As shown in Figures 3 and 5, the bundle member 33a further has side flanges 53 provided on both ends of the bundle web 50. Therefore, the bundle member 33a has two side flanges 53. Each of the two side flanges 53 is flat. The side flanges 53 are located at both ends of the bundle member 33a in the second direction Y. In this embodiment, the width of the upper bundle flange 51, the width of the lower bundle flange 52, the width of each side flange 53, the width of the lower girder flange 42 of the upper girder 32, and the width of the upper girder flange 41 of the lower girder 31 are all the same.

[0028] The bundle member 33a of this embodiment is formed by welding a bundle web 50, an upper bundle flange 51, a lower bundle flange 52, and two side flanges 53. The bundle member 33a is formed, for example, as follows.

[0029] First, the upper end of the bundling web 50 is welded to the lower surface of the upper bundle flange 51, and the lower end of the bundling web 50 is welded to the upper surface of the lower bundle flange 52. After the upper end of the bundling web 50 is welded to the lower surface of the upper bundle flange 51, the lower end of the bundling web 50 may be welded to the upper surface of the lower bundle flange 52, or after the lower end of the bundling web 50 is welded to the upper surface of the lower bundle flange 52, the upper end of the bundling web 50 may be welded to the lower surface of the upper bundle flange 51.

[0030] Next, the upper end of each side flange 53 is welded to the upper bundle flange 51, and the lower end of each side flange 53 is welded to the lower bundle flange 52. The welding work between each side flange 53 and the upper bundle flange 51, and the welding work between each side flange 53 and the lower bundle flange 52 are performed from outside the bundle member 33a, not within the space surrounded by the upper bundle flange 51, the lower bundle flange 52, and the two side flanges 53.

[0031] In this embodiment, connection bolts B are welded to the bundle member 33a. Two connection bolts B are provided on each side of the bundle web 50. Therefore, a total of four connection bolts B are provided in the bundle member 33a. Each connection bolt B is composed of a cut bolt. Therefore, each connection bolt B does not have a head, and is composed only of a shank with a thread formed on the outer circumferential surface. Each connection bolt B penetrates the upper bundle flange 51 and the lower bundle flange 52. Each connection bolt B is fixed to the bundle member 33a by being welded to the upper bundle flange 51 and the lower bundle flange 52.

[0032] 3 and 4, when the bundle member 33a is disposed between the upper girder 32 and the lower girder 31, each connection bolt B penetrates the lower girder flange 42 of the upper girder 32 and the upper girder flange 41 of the lower girder 31. Therefore, each connection bolt B penetrates the lower girder flange 42 of the upper girder 32, the upper bundle flange 51 and the lower bundle flange 52 of the bundle member 33a, and the upper girder flange 41 of the lower girder 31.

[0033] The upper end of each connection bolt B extends above the upper surface of the lower girder flange 42 of the upper girder 32. The lower end of each connection bolt B extends below the lower surface of the upper girder flange 41 of the lower girder 31. A connection nut N is engaged with the upper and lower ends of each connection bolt B. As a result, the upper girder 32, the bundle member 33a, and the lower girder 31 are connected by the connection bolts B and the connection nuts N.

[0034] The second exterior wall 13 includes a plurality of exterior wall panels 34. The plurality of exterior wall panels 34 are arranged side by side in the vertical direction Z and the second direction Y. Some of the plurality of exterior wall panels 34 are attached to the lower beam 31 via attachment members 35.

[0035] The mounting member 35 has a first mounting plate 61, a second mounting plate 62, a connecting plate 63, and a support portion 64. The first mounting plate 61 is arranged so as to overlap the outdoor surface of the girder web 40 of the lower girder 31. The second mounting plate 62 is arranged so as to overlap the indoor surface of the exterior wall panel 34. The connecting plate 63 connects the first mounting plate 61 and the second mounting plate 62 in the first direction X. The support portion 64 extends from the lower end of the second mounting plate 62 to the outdoor side. The exterior wall panel 34 is placed on the support portion 64. The support portion 64 supports the exterior wall panel 34.

[0036] The mounting member 35 is attached to the lower girder 31 by first mounting bolts B1, which serve as mounting bolts. In this embodiment, the mounting member 35 is attached to the lower girder 31 by two first mounting bolts B1 aligned in the vertical direction Z. More specifically, the first mounting bolts B1 penetrate the first mounting plate 61 and the girder web 40 of the lower girder 31. A first mounting nut N1 is engaged with the first mounting bolts B1. This attaches the mounting member 35 to the lower girder 31.

[0037] The mounting member 35 is attached to the exterior wall panel 34 by second mounting bolts B2. In this embodiment, the mounting member 35 is attached to the exterior wall panel 34 by two second mounting bolts B2 aligned in the vertical direction Z. More specifically, a portion of the second mounting bolt B2 is embedded inside the exterior wall panel 34. A portion of the shank of the second mounting bolt B2 protrudes from the indoor surface of the exterior wall panel 34. The shank of the second mounting bolt B2 penetrates the second mounting plate 62. A second mounting nut N2 is engaged with the shank of the second mounting bolt B2. This attaches the mounting member 35 to the exterior wall panel 34.

[0038] Therefore, the exterior wall panel 34 is attached to the lower beam 31 via the attachment member 35. The exterior wall panel 34 is not attached to the bundle member 33a. [Operation of this embodiment] The operation of this embodiment will be described.

[0039] The building 10 comprises a sloped roof 11, a first exterior wall 12, and a second exterior wall 13. The first exterior wall 12 is located on the belowwater side of the sloped roof 11. The second exterior wall 13 is set back from the first exterior wall 12 toward the abovewater side of the sloped roof 11. The second exterior wall 13 has a lower beam 31, an upper beam 32, and a connecting member 33. The lower beam 31 is located at the same height as the eaves beam 21 located at the upper end of the first exterior wall 12. The upper beam 32 is located above the lower beam 31. The connecting member 33 is disposed between the lower beam 31 and the upper beam 32 and connects them. As a result, the upper beam 32 is supported by the connecting member 33.

[0040] When the connecting member 33 is constructed from a rectangular frame member, if the distance between the lower beam 31 and the upper beam 32 in the vertical direction Z is small, it becomes difficult to position the two horizontal axes of the frame member extending horizontally between the lower beam 31 and the upper beam 32.

[0041] In contrast, since the connecting member 33 in this embodiment is composed of a bundle member 33a, the connecting member 33 can be arranged between the lower beam 31 and the upper beam 32 even if the distance between the lower beam 31 and the upper beam 32 in the vertical direction Z is small.

[0042] [Advantages of this embodiment] The advantages of this embodiment will be described below. (1) The connecting member 33 is composed of a beam member 33a. Therefore, even if the distance between the lower beam 31 and the upper beam 32 in the vertical direction Z is small, the connecting member 33 can be disposed between the lower beam 31 and the upper beam 32. This makes it possible to reduce the setback amount of the second exterior wall 13 relative to the first exterior wall 12 and to make the slope of the sloped roof 11 gentler, thereby increasing the degree of freedom in the design of the building 10.

[0043] (2) The upper girder 32 and the lower girder 31 each have a girder web 40, an upper girder flange 41, and a lower girder flange 42. The upper girder flange 41 is provided at the upper end of the girder web 40. The lower girder flange 42 is provided at the lower end of the girder web 40. The girder web 40 of the upper girder 32 and the girder web 40 of the lower girder 31 overlap in a plan view. The bundle member 33a has a bundle web 50 that overlaps the girder web 40 in a plan view, an upper bundle flange 51 provided at the upper end of the bundle web 50, and a lower bundle flange 52 provided at the lower end of the bundle web 50. With this configuration, the bundle member 33a can efficiently bear vertical loads.

[0044] (3) The bundle member 33a further has side flanges 53 provided on both ends of the bundle web 50. With this configuration, the bundle member 33a can efficiently bear the horizontal load in the extension direction of the lower girder 31 and the upper girder 32. Therefore, the strength of the second exterior wall 13 against horizontal shaking such as that caused by an earthquake can be increased without providing reinforcing members such as braces.

[0045] Furthermore, when the bundle member 33a is produced by welding together the multiple components that make up the bundle member 33a, the productivity of the bundle member 33a can be improved. Specifically, because the side flanges 53 are provided at both ends of the bundle web 50, the welding work between each side flange 53 and the upper bundle flange 51 and the welding work between each side flange 53 and the lower bundle flange 52 can be performed from the outside of the bundle member 33a. This reduces the amount of welding work required in the narrow space surrounded by the upper bundle flange 51, the lower bundle flange 52, and the two side flanges 53, thereby improving workability.

[0046] (4) The width of the upper beam flange 51, the width of the lower beam flange 52, the width of each side flange 53, the width of the lower beam flange 42 of the upper beam 32, and the width of the upper beam flange 41 of the lower beam 31 are all the same. With this configuration, the beam members 33a can more stably withstand vertical loads.

[0047] (5) The upper girder 32, the beam member 33a, and the lower girder 31 are connected by a connecting bolt B that passes through the lower girder flange 42, the upper beam flange 51, the lower beam flange 52 of the upper girder 32, and the upper girder flange 41 of the lower girder 31.

[0048] According to this configuration, the upper girder 32, the beam member 33a, and the lower girder 31 are connected together by a single connecting bolt B, thereby improving workability compared to when the beam member 33a and the lower girder 31 are connected by a bolt different from the bolt connecting the upper girder 32 and the beam member 33a.

[0049] Specifically, if the bolts connecting the upper girder 32 and the bundle member 33a are different from the bolts connecting the bundle member 33a and the lower girder 31, workability is reduced for the following reasons. For example, when connecting the upper girder 32 and the bundle member 33a, bolts are inserted into the lower girder flange 42 of the upper girder 32 and the upper bundle flange 51 of the bundle member 33a from above the lower girder flange 42 of the upper girder 32 or between the upper bundle flange 51 and the lower bundle flange 52. However, if the distance between the upper bundle flange 51 and the lower bundle flange 52 is small, it is difficult to insert the bolt from between the upper bundle flange 51 and the lower bundle flange 52. In this case, it is necessary to insert the bolt from above the lower girder flange 42 of the upper girder 32 and then lock a nut onto the bolt between the upper bundle flange 51 and the lower bundle flange 52. However, because the nut must be locked onto the bolt in the narrow space between the upper bundle flange 51 and the lower bundle flange 52, workability is reduced. This problem occurs not only when connecting the upper beam 32 and the beam member 33a, but also when connecting the beam member 33a and the lower beam 31.

[0050] In contrast, in this embodiment, the connection nuts N can be locked onto the connection bolts B above the lower girder flange 42 of the upper girder 32 and below the upper girder flange 41 of the lower girder 31. In other words, it is not necessary to lock the connection nuts N onto the connection bolts B in the narrow space between the upper bundle flange 51 and the lower bundle flange 52, improving workability.

[0051] Furthermore, the tensile force can be borne by the connection bolt B itself. (6) The second exterior wall 13 has an exterior wall panel 34. The exterior wall panel 34 is attached to the lower girder 31 via an attachment member 35. With this configuration, it is not necessary to form the bundle member 33a in a shape that allows the exterior wall panel 34 to be attached, which increases the degree of freedom in the shape of the bundle member 33a.

[0052] (7) The mounting member 35 and the lower beam 31 are connected by two first mounting bolts B1 aligned in the vertical direction Z. The dimension of the lower beam 31 in the vertical direction Z is larger than the dimension of the bundle member 33a in the vertical direction Z.

[0053] With this configuration, the distance between the first mounting bolts B1 in the vertical direction Z can be set larger than when the exterior wall panel 34 is attached to the bundle member 33a via the mounting member 35 and the mounting member 35 and the bundle member 33a are connected by two first mounting bolts B1 aligned in the vertical direction Z. Therefore, it is possible to prevent the load caused by the attachment of the exterior wall panel 34 from being concentrated on the lower girder 31.

[0054] (8) The connection bolt B is welded to the bundle member 33a. With this configuration, the connection bolt B and the bundle member 33a are integrated, further improving workability. <Modifications> The above embodiment is an example of a form that the building 10 can take, and is not intended to limit the form. The building 10 can take a form different from the form exemplified in the above embodiment. Examples include a form in which part of the configuration of the embodiment is replaced, changed, or omitted, or a form in which a new configuration is added to the embodiment. Modifications of the embodiment are shown below.

[0055] The building 10 is not limited to a residential building. The sloped roof 11 does not have to be a single-shed roof. The cross members are not limited to girders and may be beams.

[0056] The shape of the bundle member 33a may be changed as appropriate. As an example, the bundle member 33a may be block-shaped. As another example, as shown in FIG. 6 , the bundle member 33a may have a cross web 54 instead of the two side flanges 53 of the above embodiment. The cross web 54 is located between the upper bundle flange 51 and the lower bundle flange 52. The cross web 54 intersects with the bundle web 50 in a planar view. In the example shown in FIG. 6 , the cross web 54 is perpendicular to the bundle web 50 in a planar view. Even in this case, at least the effects (1) and (2) of the above embodiment can be obtained.

[0057] The width of the upper beam flange 51, the width of the lower beam flange 52, the width of each side flange 53, the width of the lower beam flange 42 of the upper beam 32, and the width of the upper beam flange 41 of the lower beam 31 do not have to be the same. Even in this case, at least the effect (1) of the above embodiment can be obtained.

[0058] The bundle member 33a and the lower girder 31 may be connected by a bolt different from the bolt that connects the upper girder 32 and the bundle member 33a. The connecting bolt B does not have to be welded to the bundle member 33a.

[0059] The connection bolt B does not have to be a cut bolt. The connection bolt B may have a shaft and a head provided at one end of the shaft. The exterior wall panel 34 may be attached to the connection member 33. Even in this case, at least the effect (1) of the above embodiment can be obtained.

[0060] The dimension of the bundle member 33a in the vertical direction Z may be greater than or less than 50 mm. The dimension of the bundle member 33a in the vertical direction Z is set according to the slope of the sloped roof 11, the setback amount of the second exterior wall 13 relative to the first exterior wall 12, the dimensions of the lower beam 31 and the upper beam 32 in the vertical direction Z, etc.

[0061] The dimension of the lower beam 31 in the vertical direction Z may be equal to or smaller than the dimension of the bundle member 33a in the vertical direction Z. The dimension of the upper beam 32 in the vertical direction Z may be equal to or smaller than the dimension of the bundle member 33a in the vertical direction Z.

[0062] The number of first mounting bolts B1 is not limited to two. The number of first mounting bolts B1 may be one, or three or more. The number of second mounting bolts B2 is not limited to two. The number of second mounting bolts B2 may be one, or three or more.

[0063] <Supplementary Notes> This specification discloses the following technology: [Supplementary Note 1] A building comprising a sloped roof, a first exterior wall located on the belowwater side of the sloped roof, and a second exterior wall set back from the first exterior wall on the abovewater side of the sloped roof, wherein the second exterior wall has a lower horizontal member located at the same height as an eaves horizontal member located at the top end of the first exterior wall, an upper horizontal member located above the lower horizontal member, and a connecting member arranged between the lower horizontal member and the upper horizontal member and connecting the lower horizontal member to the upper horizontal member, wherein the connecting member is constituted by a beam member.

[0064] [Appendix 2] In the building described in Appendix 1, the upper cross member and the lower cross member each have a cross member web, an upper cross member flange provided at the upper end of the cross member web, and a lower cross member flange provided at the lower end of the cross member web, the cross member web of the upper cross member and the cross member web of the lower cross member overlap in a planar view, and the bundle member has a bundle web that overlaps the cross member web in a planar view, an upper bundle flange provided at the upper end of the bundle web, and a lower bundle flange provided at the lower end of the bundle web.

[0065] [Supplementary Note 3] In the building described in Supplementary Note 2, the bundle member further has side flanges provided on both ends of the bundle web.

[0066] [Appendix 4] In the building described in Appendix 3, the width of the upper beam flange, the width of the lower beam flange, the width of the side flange, the width of the lower beam flange of the upper beam, and the width of the upper beam flange of the lower beam are the same.

[0067] [Appendix 5] In the building described in any one of Appendices 2 to 4, the upper cross member, the beam member, and the lower cross member are connected by connecting bolts that pass through the lower cross member flange of the upper cross member, the upper beam flange, the lower beam flange, and the upper cross member flange of the lower cross member.

[0068] [Supplementary Note 6] In the building described in Supplementary Note 1, the second exterior wall has an exterior wall panel, and the exterior wall panel is attached to the lower cross member via an attachment member.

[0069] [Appendix 7] In the building described in Appendix 6, the mounting member and the lower cross member are connected by a plurality of mounting bolts arranged in the vertical direction, and the dimension of the lower cross member in the vertical direction is larger than the dimension of the beam member in the vertical direction.

[0070] 10...building, 11...sloped roof, 12...first exterior wall, 13...second exterior wall, 21...eaves beam as eaves horizontal member, 31...lower beam as lower horizontal member, 32...upper beam as upper horizontal member, 33...connecting member, 33a...strut member, 34...exterior wall panel, 35...mounting member, 40...girder web as horizontal member web, 41...upper girder flange as upper horizontal member flange, 42...lower girder flange as lower horizontal member flange, 50...strut web, 51...upper beam flange, 52...lower beam flange, 53...side flange, B...connecting bolt, B1...first mounting bolt as mounting bolt, Z...upper and lower direction.

Claims

1. A building comprising: a sloped roof; a first exterior wall located on the belowwater side of the sloped roof; and a second exterior wall set back from the first exterior wall on the abovewater side of the sloped roof, wherein the second exterior wall has: a lower cross member located at the same height as the eaves cross member located at the top end of the first exterior wall; an upper cross member located above the lower cross member; and a connecting member arranged between the lower cross member and the upper cross member and connecting the lower cross member to the upper cross member, wherein the connecting member is composed of a beam member.

2. The building described in claim 1, wherein the upper cross member and the lower cross member each have a cross member web, an upper cross member flange provided at the upper end of the cross member web, and a lower cross member flange provided at the lower end of the cross member web, the cross member web of the upper cross member and the cross member web of the lower cross member overlapping in a planar view, and the bundle member has a bundle web overlapping the cross member web in a planar view, an upper bundle flange provided at the upper end of the bundle web, and a lower bundle flange provided at the lower end of the bundle web.

3. The building according to claim 2, wherein said bundle member further has side flanges provided on both ends of said bundle web.

4. A building as described in claim 3, wherein the width of the upper beam flange, the width of the lower beam flange, the width of the side flange, the width of the lower beam flange of the upper beam, and the width of the upper beam flange of the lower beam are the same.

5. A building described in any one of claims 2 to 4, wherein the upper cross member, the beam member, and the lower cross member are connected by connecting bolts that pass through the lower cross member flange of the upper cross member, the upper beam flange, the lower beam flange, and the upper cross member flange of the lower cross member.

6. A building as claimed in any one of claims 1 to 5, wherein the second exterior wall has an exterior wall panel, and the exterior wall panel is attached to the lower cross member via an attachment member.

7. A building as described in claim 6, wherein the mounting member and the lower cross member are connected by a plurality of mounting bolts arranged in the vertical direction, and the vertical dimension of the lower cross member is larger than the vertical dimension of the beam member.

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