Building

Abstract

To improve ease of human communication between floors.SOLUTION: A building 1 includes: a central staircase 21; and a plurality of floors 31 provided around the central staircase 21 and different in height. Two of the plurality of floors 31 are connected to the central staircase 21, and are connected to each other by a travel passage 41 different from the central staircase 21.SELECTED DRAWING: Figure 6

Description

[Technical field]

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

[0002] There is known a building having a plurality of floors with different floor heights (for example, Patent Document 1). The building described in Patent Document 1 is provided with ladders connecting the floors with different floor heights, and people can move between each floor by using the ladders. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2008-196111 A Summary of the Invention [Problem to be solved by the invention]

[0004] There is room for improvement in terms of ease of communication between people on different floors. [Means for solving the problem]

[0005] (1) A building that solves the above problem comprises a central staircase and a number of floors of different floor heights arranged around the central staircase, two of which are connected to the central staircase and are connected to each other by a passageway different from the central staircase.

[0006] According to this configuration, since the floors can be accessed via the central staircase or the walkway, movement between floors is easy, and therefore people can easily communicate between floors.

[0007] (2) In the building described in (1) above, the plurality of floors includes a first floor different from the two floors connected to the central staircase, the first floor not connected to the central staircase and connected directly or indirectly to at least one of the plurality of floors other than the first floor.

[0008] According to this configuration, since it is possible to move to the first floor from at least one floor other than the first floor, it is easy for people on the first floor to communicate with people on floors other than the first floor.

[0009] (3) In the building described in (2) above, the ceiling height of the first floor is lower than the ceiling height of either of the two floors connected to the central staircase.

[0010] According to this configuration, the first floor has a lower ceiling height than the two floors connected to the central staircase, and therefore has greater freedom in layout within the building than the two floors connected to the central staircase.

[0011] (4) In the building described in (2) or (3) above, one of the two floors connected to the central staircase is a second floor, the second floor is connected to the central staircase and the floor height of the second floor is lower than the floor height of the first floor, the other of the two floors connected to the central staircase is a third floor, the third floor is connected to the central staircase and the floor height of the third floor is lower than the floor height of the second floor, and the first floor is accessible only from at least one of the second floor and the third floor by the transfer passage.

[0012] With this configuration, it is possible to move from at least one of the second and third floors to the first floor, making it easier for people on the first floor to communicate with people on at least one of the second and third floors.

[0013] (5) In the building described in (4) above, the first floor has a first living area corresponding to a living space, the second floor has a second living area corresponding to the living space, and the second living area does not overlap with the first living area in the height direction of the building. With this configuration, the second living area can have a high ceiling height.

[0014] (6) In the building described in (5) above, the third floor has a third living area corresponding to a living space, and the third living area does not overlap with the second living area in the height direction of the building. With this configuration, the third living area can have a high ceiling height.

[0015] (7) In the building described in (5) or (6) above, the building includes a first exterior wall and a second exterior wall facing the first exterior wall, the second floor faces the first exterior wall and is adjacent to the first floor in a plan view on the side opposite the first exterior wall, the first floor faces the second exterior wall and is adjacent to the second floor in a plan view on the side opposite the second exterior wall, a first boundary surface is defined between the first floor and the second floor, and a first daylighting section is provided in at least a portion of the first exterior wall facing the first boundary surface. With this configuration, light can be taken in to the second floor by the first daylighting section.

[0016] (8) In the building described in (7) above, a first wall is provided between the first floor and the second floor along the first boundary surface, and a first opening is provided in the first wall connecting the second floor and the third floor.

[0017] With this configuration, light entering through the first daylighting section can be taken in through the first opening to a floor below the second floor.

[0018] (9) In the building described in (8) above, the first opening is provided with the passageway connecting the second floor and the third floor. With this configuration, people can move from the second floor to the third floor through the passageway.

[0019] (10) In the building described in (8) or (9) above, the third floor faces the second exterior wall and is adjacent to the second floor in a plan view on the side opposite the second exterior wall, a second boundary surface is defined between the second floor and the third floor, and a second daylighting section is provided on at least a portion of the second exterior wall facing the second boundary surface. With this configuration, the second daylighting section can bring light into the third floor.

[0020] (11) In the building described in (10) above, a second wall is provided between the second floor and the third floor along the second boundary surface, and a second opening is provided in the second wall.

[0021] With this configuration, light entering through the first daylighting section can be taken in through the second opening to a floor below the third floor.

[0022] (12) In the building described in (10) or (11) above, the second daylighting section includes an exterior wall opening that opens to the outside, and the third floor has a first area that is connected to the outside via the exterior wall opening. With this configuration, light can be taken in to the first area by the exterior wall opening.

[0023] (13) In the building described in (12) above, the building further includes a third exterior wall connecting the first exterior wall and the second exterior wall, and the exterior wall opening includes a first exterior wall opening and a second exterior wall opening, the first exterior wall opening is provided in the second exterior wall, and the second exterior wall opening is provided in the third exterior wall.

[0024] According to this configuration, light can be taken in to the first region by the first outer wall opening and the second outer wall opening.

[0025] (14) In the building described in (13) above, the first area includes a recessed corner. With this configuration, the first area can be arranged in the building.

[0026] (15) In the building described in (13) or (14) above, the first area is located directly below the first floor in the height direction of the building.

[0027] According to this configuration, light entering through the first light collecting portion can be taken into the first area via the first opening.

[0028] (16) In the building described in any one of (13) to (15) above, the third floor further has a second area separated from the first area by a wall having an entrance.

[0029] With this configuration, people can move between the first area and the second area via the wall having the doorway.

[0030] (17) In the building described in any one of (4) to (16) above, the plurality of floors further includes a fourth floor different from the two floors and the first floor that are connected to the central staircase, the floor height of the fourth floor being lower than the floor height of the first floor and higher than the floor height of the second floor, and the fourth floor is connected to the central staircase and is connected to the outside through a ceiling opening that opens to the outside.

[0031] With this configuration, people on the fourth floor can feel a sense of openness through the ceiling opening. Effect of the Invention

[0032] According to the present disclosure, people can easily communicate between floors. [Brief description of the drawings]

[0033] [Figure 1] FIG. 2 is a plan view of a building according to an embodiment. [Diagram 2] 2 is a side view of the building in FIG. 1 as viewed from the second exterior wall side. [Diagram 3] 2 is a perspective view of the first exterior wall and the fourth exterior wall side of the building in FIG. 1. FIG. [Figure 4] FIG. 2 is a perspective view of the second exterior wall and the fourth exterior wall side of the building in FIG. 1. [Diagram 5] 2 is a perspective view of the first exterior wall and the third exterior wall side of the building in FIG. 1. FIG. [Figure 6] 2 is a cross-sectional perspective view of the second exterior wall and third exterior wall side of the building in FIG. 1. FIG. [Figure 7] 3 is a cross-sectional view taken along line D7-D7 in FIG. 2. [Figure 8] 3 is a cross-sectional view taken along line D8-D8 in FIG. 2. [Figure 9] 3 is a cross-sectional view taken along line D9-D9 in FIG. 2. [Figure 10] 2 is a cross-sectional view taken along line D10-D10 in FIG. [Figure 11] 2 is a cross-sectional view taken along line D11-D11 in FIG. [Figure 12] 2 is a cross-sectional view taken along line D12-D12 in FIG. 1. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0034] (Embodiment) A building 1 according to this embodiment will be described with reference to Figs.

[0035] <Buildings> As shown in FIG. 1, the building 1 includes a first exterior wall 11 and a second exterior wall 12 facing the first exterior wall 11. The first exterior wall 11 separates the interior and exterior of the room. The second exterior wall 12 separates the interior and exterior of the room. The building 1 further includes a third exterior wall 13 connecting the first exterior wall 11 and the second exterior wall 12. The third exterior wall 13 separates the interior and exterior of the room. The building 1 further includes a fourth exterior wall 14 facing the third exterior wall 13. The fourth exterior wall 14 connects the first exterior wall 11 and the second exterior wall 12. The fourth exterior wall 14 separates the interior and exterior of the room.

[0036] The building 1 has an interior space S surrounded by a first exterior wall 11, a second exterior wall 12, a third exterior wall 13, and a fourth exterior wall 14 in a plan view. The building 1 is rectangular in a plan view. The building 1 is rectangular in a side view.

[0037] The building 1 includes a roof 2. In one example, the roof 2 is a flat roof. The roof 2 includes a ceiling opening 2A that opens to the outside. The ceiling opening 2A is rectangular. A skylight may be provided in the ceiling opening 2A.

[0038] <Outer wall opening> At least one of the first exterior wall 11, the second exterior wall 12, the third exterior wall 13, and the fourth exterior wall 14 includes an exterior wall opening 15. The exterior wall opening 15 opens to the outside of the room. The exterior wall opening 15 includes a first exterior wall opening 15A and a second exterior wall opening 15B. The first exterior wall opening 15A and the second exterior wall opening 15B are not provided with a window sash. The first exterior wall opening 15A and the second exterior wall opening 15B are configured to be always open.

[0039] The first exterior wall opening 15A is provided in the second exterior wall 12. The second exterior wall opening 15B is provided in the third exterior wall 13. The first exterior wall opening 15A and the second exterior wall opening 15B are rectangular. The first exterior wall opening 15A and the second exterior wall opening 15B are substantially the same size.

[0040] As shown in Fig. 3 and Fig. 5, the exterior wall opening 15 includes a third exterior wall opening 15C. The third exterior wall opening 15C is provided in the first exterior wall 11. The third exterior wall opening 15C is provided on the third exterior wall 13 side of the first exterior wall 11. The third exterior wall opening 15C is rectangular. The third exterior wall opening 15C may be circular or triangular. The third exterior wall opening 15C is provided with, for example, a window.

[0041] The exterior wall opening 15 includes a fourth exterior wall opening 15D. The fourth exterior wall opening 15D is provided in the first exterior wall 11. The fourth exterior wall opening 15D is provided below the third exterior wall opening 15C. The fourth exterior wall opening 15D is rectangular. The fourth exterior wall opening 15D may be circular or triangular. The fourth exterior wall opening 15D is smaller than the third exterior wall opening 15C. The fourth exterior wall opening 15D is provided with, for example, a window.

[0042] As shown in FIG. 2 and FIG. 4, the exterior wall opening 15 includes a fifth exterior wall opening 15E. The fifth exterior wall opening 15E is provided in the second exterior wall 12. The fifth exterior wall opening 15E is provided on the fourth exterior wall 14 side of the second exterior wall 12. The fifth exterior wall opening 15E is rectangular. The fifth exterior wall opening 15E may be circular or triangular. The fifth exterior wall opening 15E is larger than the first exterior wall opening 15A and the seventh exterior wall opening 15G. The fifth exterior wall opening 15E is provided with, for example, a window.

[0043] The exterior wall opening 15 includes a sixth exterior wall opening 15F. The sixth exterior wall opening 15F is provided in the second exterior wall 12. The sixth exterior wall opening 15F is provided on the fourth exterior wall 14 side of the second exterior wall 12. The sixth exterior wall opening 15F is provided above the fifth exterior wall opening 15E in the height direction Z of the building 1. The sixth exterior wall opening 15F is rectangular. The sixth exterior wall opening 15F is the smallest of the exterior wall openings 15 provided in the second exterior wall 12. The sixth exterior wall opening 15F is provided with, for example, a window.

[0044] The exterior wall opening 15 includes a seventh exterior wall opening 15G. The seventh exterior wall opening 15G is provided in the second exterior wall 12. The seventh exterior wall opening 15G is provided on the third exterior wall 13 side of the second exterior wall 12. The seventh exterior wall opening 15G is provided below the first exterior wall opening 15A in the height direction Z.

[0045] The seventh outer wall opening 15G is rectangular. The seventh outer wall opening 15G may be circular or triangular. The seventh outer wall opening 15G is provided with, for example, a window. The fifth outer wall opening 15E and the seventh outer wall opening 15G are arranged side by side in the horizontal direction. The seventh outer wall opening 15G is substantially the same size as the first outer wall opening 15A. The seventh outer wall opening 15G is provided with, for example, a window.

[0046] As shown in FIG. 5, the exterior wall opening 15 includes an eighth exterior wall opening 15H. The eighth exterior wall opening 15H is provided in the third exterior wall 13. The eighth exterior wall opening 15H is provided on the second exterior wall 12 side of the third exterior wall 13. The eighth exterior wall opening 15H is provided below the second exterior wall opening 15B. The eighth exterior wall opening 15H is rectangular. The eighth exterior wall opening 15H may be circular or triangular. The eighth exterior wall opening 15H is provided with, for example, a window.

[0047] The exterior wall opening 15 includes a ninth exterior wall opening 15K. The ninth exterior wall opening 15K is provided in the third exterior wall 13. The ninth exterior wall opening 15K is provided above the third exterior wall 13 on the first exterior wall 11 side. The ninth exterior wall opening 15K is rectangular. The ninth exterior wall opening 15K may be circular or triangular. The ninth exterior wall opening 15K is provided with, for example, a window.

[0048] The exterior wall opening 15 includes a tenth exterior wall opening 15M. The tenth exterior wall opening 15M is provided in the third exterior wall 13. The tenth exterior wall opening 15M is provided between the second exterior wall opening 15B and the ninth exterior wall opening 15K in the horizontal direction. The tenth exterior wall opening 15M is rectangular. The tenth exterior wall opening 15M may be circular or triangular. The tenth exterior wall opening 15M is provided with, for example, a window.

[0049] The exterior wall opening 15 includes an eleventh exterior wall opening 15N. The eleventh exterior wall opening 15N is provided in the third exterior wall 13. The eleventh exterior wall opening 15N is provided on the first exterior wall 11 side of the third exterior wall 13. The eleventh exterior wall opening 15N is provided below the ninth exterior wall opening 15K. The eleventh exterior wall opening 15N is rectangular. The eleventh exterior wall opening 15N may be circular or triangular. The eleventh exterior wall opening 15N is substantially the same size as the ninth exterior wall opening 15K. The eleventh exterior wall opening 15N is provided with, for example, a window.

[0050] The second exterior wall opening 15B is larger than the eighth exterior wall opening 15H, the ninth exterior wall opening 15K, the tenth exterior wall opening 15M, and the eleventh exterior wall opening 15N. The eighth exterior wall opening 15H is larger than the ninth exterior wall opening 15K, the tenth exterior wall opening 15M, and the eleventh exterior wall opening 15N. The tenth exterior wall opening 15M is larger than the ninth exterior wall opening 15K and the eleventh exterior wall opening 15N.

[0051] As shown in Figs. 3 and 4, the exterior wall opening 15 includes a 12th exterior wall opening 15P. The 12th exterior wall opening 15P is provided in the fourth exterior wall 14. The 12th exterior wall opening 15P is rectangular. The 12th exterior wall opening 15P has a size that allows a person to enter and exit, for example. The 12th exterior wall opening 15P is provided on the first exterior wall 11 side of the fourth exterior wall 14. For example, a front door is provided in the 12th exterior wall opening 15P.

[0052] The exterior wall opening 15 includes a 13th exterior wall opening 15R. The 13th exterior wall opening 15R is provided in the fourth exterior wall 14. The 13th exterior wall opening 15R is provided on the first exterior wall 11 side of the fourth exterior wall 14. The 13th exterior wall opening 15R is provided above the 12th exterior wall opening 15P in the height direction Z. The 13th exterior wall opening 15R is rectangular. The 13th exterior wall opening 15R may be circular or triangular. The 13th exterior wall opening 15R is provided with, for example, a window.

[0053] The exterior wall opening 15 includes a fourteenth exterior wall opening 15S. The fourteenth exterior wall opening 15S is provided in the fourth exterior wall 14. The fourteenth exterior wall opening 15S is provided on the first exterior wall 11 side of the fourth exterior wall 14. The fourteenth exterior wall opening 15S is rectangular. The fourteenth exterior wall opening 15S may be circular or triangular. The fourteenth exterior wall opening 15S is provided with, for example, a window.

[0054] The fourteenth exterior wall opening 15S is provided above the thirteenth exterior wall opening 15R in the height direction Z. The thirteenth exterior wall opening 15R and the fourteenth exterior wall opening 15S are arranged side by side above the twelfth exterior wall opening 15P in the height direction Z.

[0055] The exterior wall opening 15 includes a fifteenth exterior wall opening 15T. The fifteenth exterior wall opening 15T is provided in the fourth exterior wall 14. The fifteenth exterior wall opening 15T is provided on the second exterior wall 12 side of the fourth exterior wall 14. The fifteenth exterior wall opening 15T is rectangular. The fifteenth exterior wall opening 15T may be circular or triangular. The fifteenth exterior wall opening 15T is provided with, for example, a window. The fifteenth exterior wall opening 15T is substantially the same size as the sixth exterior wall opening 15F.

[0056] <Central stairs> 6 to 9, the building 1 includes a central staircase 21 and a plurality of floors 31 having different floor heights that are provided around the central staircase 21. The plurality of floors 31 will be described later.

[0057] The central staircase 21 is provided in the indoor space S. The central staircase 21 extends from the reference floor 3 to the roof 2. The central staircase 21 is provided in approximately the center of the building 1. In one example, the central staircase 21 is a spiral staircase. The central staircase 21 may be a straight staircase, a return staircase, or a spiral staircase.

[0058] The building 1 includes a central staircase arrangement section 22. The central staircase arrangement section 22 is provided in approximately the center of the building 1. The central staircase 21 is arranged in the central staircase arrangement section 22. The central staircase arrangement section 22 extends from the reference floor 3 to the roof 2. The central staircase arrangement section 22 includes a first side wall 23, a second side wall 24, a third side wall 25, and a fourth side wall 26. The first side wall 23 faces the first exterior wall 11. The second side wall 24 faces the second exterior wall 12. The third side wall 25 faces the third exterior wall 13. The fourth side wall 26 faces the fourth exterior wall 14. At least one of the first side wall 23, the second side wall 24, the third side wall 25, and the fourth side wall 26 is provided with an opening connected to at least one of the multiple floors 31.

[0059] <Transportation Passage> In addition to the central staircase arrangement 22, the building 1 has at least one moving passage 41 connecting two of the multiple floors 31. The moving passage 41 provides a means of moving between floors without using the central staircase arrangement 22. The moving passage 41 is, for example, a staircase, a ladder, or a slope. The moving passage 41 includes a first moving passage 42, a second moving passage 43, a third moving passage 44, a fourth moving passage 45, and a fifth moving passage 46, which will be described later.

[0060] <Floor> As shown in FIG. 6 and FIG. 7, the building 1 includes a reference floor 3. The reference floor 3 is provided in an indoor space S. The reference floor 3 is, for example, a first floor. The first exterior wall 11, the second exterior wall 12, the third exterior wall 13, and the fourth exterior wall 14 extend, for example, from the reference floor 3 to the roof 2. The reference floor 3 is connected to the outside via the fourth exterior wall opening 15D, the fifth exterior wall opening 15E, the seventh exterior wall opening 15G, the eighth exterior wall opening 15H, the eleventh exterior wall opening 15N, and the twelfth exterior wall opening 15P. The reference floor 3 is connected to the central staircase 21 via openings provided in the first side wall 23 and the fourth side wall 26.

[0061] A plurality of floors 31 are provided in the indoor space S. Two of the plurality of floors 31 are connected to a central staircase 21, and are connected to each other by a first transfer passage 42 that is different from the central staircase 21.

[0062] As shown in Figures 6, 9, and 10, the multiple floors 31 include a first floor 32 that is different from the two floors 33, 34 connected to the central staircase 21. The floor height of the first floor 32 is higher than the floor heights of the reference floor 3 and the two floors 33, 34 connected to the central staircase 21. The ceiling height of the first floor 32 is lower than the ceiling heights of both of the two floors 33, 34 connected to the central staircase 21. The ceiling height of the first floor 32 is, for example, 1000 mm or more and less than 1400 mm. The first floor 32 is rectangular in plan view.

[0063] As shown in Figures 6, 8, 9, and 11, one of the two floors 33, 34 connected to the central staircase 21 is the second floor 33. The other of the two floors 33, 34 connected to the central staircase 21 is the third floor 34.

[0064] The floor height of the second floor 33 is lower than the floor height of the first floor 32. The floor height of the second floor 33 is higher than the floor height of the reference floor 3. The second floor 33 is connected to the central staircase 21. The second floor 33 is connected to the central staircase 21 through an opening provided in the second side wall 24.

[0065] The second floor 33 is rectangular in plan view. The ceiling height of the second floor 33 is higher than the ceiling height of the first floor 32. The ceiling height of the second floor 33 is, for example, 1400 mm or more. The second floor 33 is connected to the outside via a ninth exterior wall opening 15K and a tenth exterior wall opening 15M.

[0066] The floor height of the third floor 34 is lower than the floor height of the second floor 33. The floor height of the third floor 34 is higher than the floor height of the reference floor 3. The third floor 34 is connected to the central staircase 21. The third floor 34 is connected to the central staircase 21 through an opening provided in the third side wall 25.

[0067] The third floor 34 is rectangular in plan view. The ceiling height of the third floor 34 is higher than the ceiling height of the first floor 32. The ceiling height of the third floor 34 is, for example, 1400 mm or more. The ceiling height of the third floor 34 may be the same as or different from the ceiling height of the second floor 33. The difference between the floor height of the second floor 33 and the floor height of the third floor 34 is 1 m or more and 3 m or less. The third floor 34 and the second floor 33 can be moved to each other via a first moving passage 42. The first moving passage 42 is, for example, a staircase, a ladder, or a slope.

[0068] The first floor 32 is not connected to the central staircase 21, and is directly or indirectly connected to at least one of the multiple floors 31 other than the first floor 32. The first floor 32 cannot be accessed directly from the central staircase 21.

[0069] The first floor 32 is accessible from the second floor 33 by the second moving passage 43. The second moving passage 43 is, for example, a staircase, a ladder, or a slope. The first floor 32 is accessible from the third floor 34 by the third moving passage 44. The third moving passage 44 is, for example, a staircase, a ladder, or a slope. The first floor 32 may be accessible only from the second floor 33 by the second moving passage 43, or may be accessible only from the third floor 34 by the third moving passage 44.

[0070] The first floor 32 faces the second exterior wall 12 and is adjacent to the second floor 33 in a plan view on the side opposite the second exterior wall 12. The second floor 33 faces the first exterior wall 11 and is adjacent to the first floor 32 in a plan view on the side opposite the first exterior wall 11. A first boundary surface BS1 is defined between the first floor 32 and the second floor 33. The first boundary surface BS1 is a virtual boundary surface between the first floor 32 and the second floor 33.

[0071] A first daylighting section 51 is provided in at least a portion of the first exterior wall 11 facing the first boundary surface BS1. The first daylighting section 51 includes a third exterior wall opening 15C. A first wall 61 is provided between the first floor 32 and the second floor 33, along the first boundary surface BS1.

[0072] The first wall 61 is provided with a first opening 62 connecting the second floor 33 and the third floor 34. Light entering from the first daylighting section 51 enters the third floor 34 through the first opening 62. The first opening 62 is provided with a first transfer passage 42 connecting the second floor 33 and the third floor 34.

[0073] The third floor 34 faces the second exterior wall 12 and is adjacent to the second floor 33 in a plan view on the side opposite the second exterior wall 12. A second boundary surface BS2 is defined between the second floor 33 and the third floor 34. The second boundary surface BS2 is a virtual boundary surface between the second floor 33 and the third floor 34.

[0074] A second daylighting section 52 is provided in at least a portion of the second outer wall 12 facing the second boundary surface BS2. The second daylighting section 52 includes a first outer wall opening 15A and a second outer wall opening 15B. The first outer wall opening 15A faces the second boundary surface BS2.

[0075] A second wall 63 is provided between the second floor 33 and the third floor 34 along the second boundary surface BS2. A second opening 64 is provided in the second wall 63. Light entering from the second daylighting section 52 enters the reference floor 3 through the second opening 64.

[0076] The first floor 32 has a first living area RA1 corresponding to a living space. The second floor 33 has a second living area RA2 corresponding to a living space. In the height direction Z, the second living area RA2 does not overlap with the first living area RA1.

[0077] The third floor 34 has a third living area RA3 corresponding to a living space. In the height direction Z, the third living area RA3 does not overlap with the second living area RA2.

[0078] The third floor 34 has a first area 34A that is connected to the outside via the first exterior wall opening 15A and the second exterior wall opening 15B. The first area 34A is located directly below the first floor 32 in the height direction Z. The first area 34A is included in the third living area RA3.

[0079] The third floor 34 further has a second area 34B separated from the first area 34A by a wall 34D having an entrance 34C. The second area 34B does not overlap with the first floor 32 in the height direction Z. The second area 34B is included in the third living area RA3. The entrance 34C is, for example, a window. The entrance 34C may be a door or a sliding door. The second area 34B is connected to the outside via the sixth exterior wall opening 15F and the fifteenth exterior wall opening 15T.

[0080] The first region 34A includes an inside corner 34E. The inside corner 34E is formed by the first wall 61 and a wall 34D having an access 34C. The inside corner 34E is located on the opposite side of the inside corner formed by the first exterior wall 11 and the third exterior wall 13.

[0081] As shown in Figures 6, 9, and 12, the multiple floors 31 further include two floors 33, 34 connected to the central staircase 21 and a fourth floor 35 different from the first floor 32. The fourth floor 35 is rectangular in plan view. The floor height of the fourth floor 35 is lower than the floor height of the first floor 32 and higher than the second floor 33.

[0082] The fourth floor 35 is connected to the central staircase 21 and also to the outside via the ceiling opening 2A. The fourth floor 35 is connected to the central staircase 21 via an opening provided in the fourth side wall 26. A window, a door, or a sliding door may be provided in the opening connecting the fourth floor 35 and the central staircase 21. The fourth floor 35 is connected to the outside via the fourteenth exterior wall opening 15S.

[0083] The fourth floor 35 is accessible only from the central staircase 21. The fourth floor 35 may be configured to be accessible from at least one of the second floor 33 and the third floor 34 via a transfer passage 41. The fourth floor 35 has a fourth living area RA4 corresponding to a living space.

[0084] As shown in Figures 8, 9, and 12, the multiple floors 31 further include a fifth floor 36 that is connected to the central staircase 21 and has a lower floor height than the third floor 34. The fifth floor 36 has a higher floor height than the reference floor 3. The fifth floor 36 is, for example, the second floor.

[0085] The fifth floor 36 has a shape that follows the first exterior wall 11 and the fourth exterior wall 14. The fifth floor 36 has a fifth living area RA5 that corresponds to a living space. At least a portion of the fifth living area RA5 overlaps with at least a portion of the fourth living area RA4 in the height direction Z. The fifth floor 36 is connected to the outside by a thirteenth exterior wall opening 15R.

[0086] The fifth floor 36 is connected to the base floor 3, the second floor 33, the third floor 34, and the fourth floor 35 via the central staircase 21. The fifth floor 36 is connected to the central staircase 21 via an opening provided in the first side wall 23.

[0087] The fifth floor 36 is connected to the reference floor 3 via a fourth transfer passage 45. The fourth transfer passage 45 is provided along the first outer wall 11. The fourth transfer passage 45 is, for example, a staircase, a ladder, or a slope.

[0088] The fifth floor 36 and the second floor 33 can be moved to each other by a fifth moving passage 46. The fifth moving passage 46 is provided along the first side wall 23. The fifth moving passage 46 is, for example, a staircase, a ladder, or a slope.

[0089] (Effects of this embodiment) (1) The building 1 comprises a central staircase 21 and a plurality of floors 31 arranged around the central staircase 21 and having different floor heights, two of the plurality of floors 31 being connected to the central staircase 21 and being connected to each other by a passageway 41 different from the central staircase 21.

[0090] According to this configuration, movement between floors is easy because it is possible to move between floors via the central staircase 21 or the transfer passageway 41. Therefore, people can easily communicate between floors.

[0091] (2) The multiple floors 31 include a first floor 32 that is different from the two floors 33, 34 connected to the central staircase 21, and the first floor 32 is not connected to the central staircase 21 and is directly or indirectly connected to at least one of the multiple floors 31 other than the first floor 32.

[0092] According to this configuration, since it is possible to move to the first floor 32 from at least one floor other than the first floor 32, it is easy for people on the first floor 32 to communicate with people on other floors than the first floor 32.

[0093] (3) The ceiling height of the first floor 32 is lower than the ceiling height of either of the two floors 33, 34 connected to the central staircase 21.

[0094] According to this configuration, the first floor 32 has a lower ceiling height than the two floors 33, 34 connected to the central staircase 21, and therefore has a higher degree of freedom in terms of layout in the building 1 than the two floors 33, 34 connected to the central staircase 21.

[0095] (4) One of the two floors 33, 34 connected to the central staircase 21 is the second floor 33, the second floor 33 is connected to the central staircase 21, and the floor height of the second floor 33 is lower than the floor height of the first floor 32; the other of the two floors 33, 34 connected to the central staircase 21 is the third floor 34, the third floor 34 is connected to the central staircase 21, and the floor height of the third floor 34 is lower than the floor height of the second floor 33; and the first floor 32 is accessible only from at least one of the second floor 33 and the third floor 34 by the transfer passage 41.

[0096] With this configuration, it is possible to move from at least one of the second floor 33 and the third floor 34 to the first floor 32, making it easier for people on the first floor 32 to communicate with people on at least one of the second floor 33 and the third floor 34.

[0097] (5) The first floor 32 has a first living area RA1 corresponding to a living space, and the second floor 33 has a second living area RA2 corresponding to a living space, and the second living area RA2 does not overlap with the first living area RA1 in the height direction Z of the building 1. With this configuration, the second living area RA2 can have a high ceiling height.

[0098] (6) The third floor 34 has a third living area RA3 corresponding to a living space, and the third living area RA3 does not overlap with the second living area RA2 in the height direction Z of the building 1. With this configuration, the third living area RA3 can have a high ceiling height.

[0099] (7) The building 1 includes a first exterior wall 11 and a second exterior wall 12 facing the first exterior wall 11, the second floor 33 faces the first exterior wall 11 and is adjacent to the first floor 32 in a plan view on the side opposite the first exterior wall 11, the first floor 32 faces the second exterior wall 12 and is adjacent to the second floor 33 in a plan view on the side opposite the second exterior wall 12, a first boundary surface BS1 is defined between the first floor 32 and the second floor 33, and a first daylighting section 51 is provided in at least a portion of the first exterior wall 11 facing the first boundary surface BS1. With this configuration, light can be taken in by the first daylighting section 51 to the second floor 33.

[0100] (8) A first wall 61 is provided between the first floor 32 and the second floor 33, along the first boundary surface BS1, and a first opening 62 is provided in the first wall 61, connecting the second floor 33 and the third floor 34.

[0101] With this configuration, light entering through the first daylighting section 51 can be taken in through the first opening 62 to a floor below the second floor 33.

[0102] (9) A transfer passage 41 is provided in the first opening 62, connecting the second floor 33 and the third floor 34.

[0103] With this configuration, people can move from the second floor 33 to the third floor 34 via the transfer passage 41.

[0104] (10) The third floor 34 faces the second exterior wall 12 and is adjacent to the second floor 33 in a plan view on the side opposite the second exterior wall 12, a second boundary surface BS2 is defined between the second floor 33 and the third floor 34, and a second daylighting section 52 is provided in at least a portion of the second exterior wall 12 facing the second boundary surface BS2.

[0105] With this configuration, light can be brought into the third floor 34 by the second daylighting section 52.

[0106] (11) A second wall 63 is provided between the second floor 33 and the third floor 34 along the second boundary surface BS2, and a second opening 64 is provided in the second wall 63.

[0107] With this configuration, light entering through the first daylighting section 51 can be taken in through the second opening 64 to a floor below the third floor 34.

[0108] (12) The second daylighting section 52 includes an exterior wall opening 15 that opens to the outside, and the third floor 34 has a first area 34A that is connected to the outside via the exterior wall opening 15.

[0109] According to this configuration, the outer wall opening 15 allows light to enter the first region 34A.

[0110] (13) The building 1 further includes a third exterior wall 13 connecting the first exterior wall 11 and the second exterior wall 12, and the exterior wall opening 15 includes a first exterior wall opening 15A and a second exterior wall opening 15B, the first exterior wall opening 15A being provided in the second exterior wall 12, and the second exterior wall opening 15B being provided in the third exterior wall 13.

[0111] According to this configuration, light can be taken in by the first outer wall opening 15A and the second outer wall opening 15B into the first region 34A.

[0112] (14) The first area 34A includes the recessed corner portion 34E. With this configuration, the first area 34A can be arranged in the building 1.

[0113] (15) The first area 34A is located directly below the first floor 32 in the height direction Z of the building 1.

[0114] According to this configuration, light entering through first light collecting portion 51 can be taken in through first opening 62 into first region 34A.

[0115] (16) The third floor 34 further has a second area 34B separated from the first area 34A by a wall 34D having an entrance / exit 34C.

[0116] With this configuration, people can move between first area 34A and second area 34B by means of wall 34D having doorway 34C.

[0117] (17) The multiple floors 31 further include two floors 33, 34 connected to the central staircase 21 and a fourth floor 35 different from the first floor 32, the floor height of the fourth floor 35 being lower than the floor height of the first floor 32 and higher than the floor height of the second floor 33, the fourth floor 35 being connected to the central staircase 21 and also connected to the outside via a ceiling opening 2A that opens to the outside.

[0118] According to this configuration, people on the fourth floor 35 can feel a sense of openness through the ceiling opening 2A.

[0119] <Example of change> The above embodiment is an example of a form that the building 1 can take, and is not intended to limit the form. The building 1 can take a form different from the form exemplified in the above embodiment. Examples of such a form 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. Examples of modifications of the embodiment are shown below.

[0120] (1) The shape of the building 1 is not limited to a rectangle. For example, the shape of the building 1 may be a triangle in a plan view. The shape of the building 1 may be a trapezoid, a circle, an ellipse, or a semicircle in a plan view.

[0121] (2) The shape of each of the multiple floors 31 is not limited to a rectangle. For example, the shape of each of the multiple floors 31 may be a triangle in a plan view. The shape of each of the multiple floors 31 may be a trapezoid, a circle, an ellipse, or a semicircle in a plan view.

[0122] (3) At least one of the fourth exterior wall opening 15D, the fifth exterior wall opening 15E, the sixth exterior wall opening 15F, the seventh exterior wall opening 15G, the eighth exterior wall opening 15H, the ninth exterior wall opening 15K, the tenth exterior wall opening 15M, the eleventh exterior wall opening 15N, the twelfth exterior wall opening 15P, the thirteenth exterior wall opening 15R, the fourteenth exterior wall opening 15S, and the fifteenth exterior wall opening 15T may be omitted.

[0123] The present specification discloses the following techniques: [Appendix 1] The building comprises a central staircase and a number of floors with different floor heights arranged around the central staircase, two of which are connected to the central staircase and are connected to each other by a passageway different from the central staircase.

[0124] [Appendix 2] A building as described in Appendix 1, wherein the plurality of floors includes a first floor different from the two floors connected to the central staircase, the first floor not connected to the central staircase and connected directly or indirectly to at least one of the plurality of floors other than the first floor.

[0125] [Appendix 3] The building described in Appendix 2, wherein the ceiling height of the first floor is lower than the ceiling height of either of the two floors connected to the central staircase.

[0126] [Appendix 4] A building as described in Appendix 3, wherein one of the two floors connected to the central staircase is a second floor, the second floor is connected to the central staircase and the floor height of the second floor is lower than the floor height of the first floor, the other of the two floors connected to the central staircase is a third floor, the third floor is connected to the central staircase and the floor height of the third floor is lower than the floor height of the second floor, and the first floor is accessible only from at least one of the second floor and the third floor by the transfer passage.

[0127] [Appendix 5] A building as described in Appendix 4, wherein the first floor has a first living area corresponding to a living space, the second floor has a second living area corresponding to the living space, and the second living area does not overlap with the first living area in the height direction of the building.

[0128] [Appendix 6] A building as described in Appendix 5, wherein the third floor has a third living area corresponding to a living space, and the third living area does not overlap with the second living area in the height direction of the building.

[0129] [Appendix 7] A building as described in Appendix 6, wherein the building includes a first exterior wall and a second exterior wall opposite the first exterior wall, the second floor faces the first exterior wall and is adjacent to the first floor in a planar view on the side opposite the first exterior wall, the first floor faces the second exterior wall and is adjacent to the second floor in a planar view on the side opposite the second exterior wall, a first boundary surface is defined between the first floor and the second floor, and a first daylighting section is provided in at least a portion of the first exterior wall that faces the first boundary surface.

[0130] [Appendix 8] A building as described in Appendix 7, wherein a first wall is provided between the first floor and the second floor along the first boundary surface, and a first opening is provided in the first wall connecting the second floor and the third floor.

[0131] [Appendix 9] In the building described in Supplementary Note 8, the first opening is provided with the passageway connecting the second floor and the third floor.

[0132] [Appendix 10] In the building according to Supplementary Note 9, the third floor faces the second exterior wall and is adjacent to the second floor in a plan view on an opposite side to the second exterior wall; A second boundary surface is defined between the second floor and the third floor; A second daylighting section is provided on at least a portion of the second outer wall facing the second boundary surface.

[0133] [Appendix 11] A building as described in Appendix 10, wherein a second wall is provided between the second floor and the third floor along the second boundary surface, and a second opening is provided in the second wall.

[0134] [Appendix 12] A building as described in Appendix 11, wherein the second daylighting section includes an exterior wall opening that opens to the outside, and the third floor has a first area that is connected to the outside via the exterior wall opening.

[0135] [Appendix 13] A building as described in Appendix 12, wherein the building further includes a third exterior wall connecting the first exterior wall and the second exterior wall, and the exterior wall opening includes a first exterior wall opening and a second exterior wall opening, the first exterior wall opening being provided in the second exterior wall, and the second exterior wall opening being provided in the third exterior wall.

[0136] [Appendix 14] 14. The building of claim 13, wherein the first region includes an inside corner.

[0137] [Appendix 15] A building according to Supplementary Note 14, wherein the first area is located directly below the first floor in the height direction of the building.

[0138] [Appendix 16] The building according to claim 15, wherein the third floor further has a second area separated from the first area by a wall having an entrance.

[0139] [Appendix 17] A building as described in Appendix 4, wherein the plurality of floors further includes a fourth floor different from the two floors and the first floor connected to the central staircase, the floor height of the fourth floor being lower than the floor height of the first floor and higher than the floor height of the second floor, and the fourth floor being connected to the central staircase and connected to the outside via a ceiling opening that opens to the outside. [Explanation of symbols]

[0140] 1...building, 2A...ceiling opening, 11...first exterior wall, 12...second exterior wall, 13...third exterior wall, 15...exterior wall opening, 15A...first exterior wall opening, 15B...second exterior wall opening, 21...central staircase, 31...multiple floors, 32...first floor, 33...second floor, 34...third floor, 34A...first area, 34B...second area, 34C...entrance / exit, 34D...wall, 34E...corner, 35...fourth floor, 41...transportation passage, 51...first lighting section, 52...second lighting section, 61...first wall, 62...first opening, 63...second wall, 64...second opening, BS1...first boundary surface, BS2...second boundary surface, RA1...first living area, RA2...second living area, RA3...third living area, Z...height direction.

Claims

1. A building, The central staircase and A plurality of floors having different floor heights are provided around the central staircase, Two of the plurality of floors are connected to the central staircase and are connected to each other by a passageway different from the central staircase. architecture.

2. the plurality of floors includes a first floor different from the two floors connected to the central staircase; The first floor is not connected to the central staircase and is directly or indirectly connected to at least one floor other than the first floor among the plurality of floors. The building according to claim 1.

3. The ceiling height of the first floor is lower than the ceiling height of either of the two floors connected to the central staircase; The building according to claim 2.

4. One of the two floors connected to the central staircase is a second floor; The second floor is connected to the central staircase, The floor height of the second floor is lower than the floor height of the first floor, The other of the two floors connected to the central staircase is a third floor; The third floor is connected to the central staircase, The floor height of the third floor is lower than the floor height of the second floor, The first floor is accessible only from at least one of the second floor and the third floor by the passageway. The building according to claim 3.

5. the first floor has a first living area corresponding to a living space; the second floor has a second living area corresponding to a living space; In the height direction of the building, the second living area does not overlap with the first living area. The building according to claim 4.

6. the third floor has a third living area corresponding to a living space; In the height direction of the building, the third living area does not overlap with the second living area. The building according to claim 5.

7. The building includes a first exterior wall and a second exterior wall opposite to the first exterior wall, The second floor faces the first exterior wall and is adjacent to the first floor in a plan view on a side opposite to the first exterior wall, The first floor faces the second exterior wall and is adjacent to the second floor in a plan view on a side opposite to the second exterior wall; A first boundary surface is defined between the first floor and the second floor; A first light collecting section is provided in at least a portion of the first outer wall facing the first boundary surface. The building according to claim 6.

8. A first wall is provided between the first floor and the second floor along the first boundary surface, The first wall has a first opening connecting the second floor and the third floor. The building according to claim 7.

9. The first opening is provided with the transfer passageway connecting the second floor and the third floor. The building according to claim 8.

10. The third floor faces the second exterior wall and is adjacent to the second floor in a plan view on a side opposite to the second exterior wall; A second boundary surface is defined between the second floor and the third floor; A second daylighting section is provided at least in a portion of the second outer wall facing the second boundary surface. The building according to claim 9.

11. A second wall is provided between the second floor and the third floor along the second boundary surface, The second wall is provided with a second opening. The building according to claim 10.

12. The second daylighting section includes an exterior wall opening that opens to the outside of the room, The third floor has a first area that is connected to the outside through the exterior wall opening. The building according to claim 11.

13. The building further includes a third exterior wall connecting the first exterior wall and the second exterior wall, The exterior wall opening includes a first exterior wall opening and a second exterior wall opening, The first outer wall opening is provided in the second outer wall, The second outer wall opening is provided in the third outer wall. The building according to claim 12.

14. The first region includes an inside corner portion. The building according to claim 13.

15. The first area is located directly below the first floor in a height direction of the building.

15. The building according to claim 14.

16. The third floor further includes a second area separated from the first area by a wall having an entrance.

16. The building according to claim 15.

17. The plurality of floors further includes a fourth floor different from the two floors and the first floor connected to the central staircase, The floor height of the fourth floor is lower than the floor height of the first floor and higher than the floor height of the second floor; The fourth floor is connected to the central staircase and is connected to the outside through a ceiling opening that opens to the outside. The building according to claim 4.

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