JP2020204224A - Building and design method - Google Patents

Abstract

To provide buildings and design methods that include atrium spaces that can attract people upstairs.SOLUTION: The building according to the present invention has three or more floors, including a predetermined reference floor, a first upper floor above the predetermined reference floor, a second upper floor above the predetermined reference floor and the first upper floor, and an atrium space extending upward from the predetermined reference floor and adjacent to the first upper floor and the second upper floor. The first upper floor includes a first adjacent portion that is visible from the atrium space and is adjacent to the atrium space and extends along the atrium space in a plan view. The second upper floor includes a second adjacent portion that is visible from the atrium space and is adjacent to the atrium space and extends along the atrium space in a plan view. The second adjacent portion includes a portion that does not vertically overlap with the first adjacent portion.SELECTED DRAWING: Figure 4

Description

The present invention relates to buildings and design methods.

Buildings with atrium spaces have been known for some time. Patent Document 1 describes a middle-to-high-rise building having a stairwell portion that partially opens to the side, and a dwelling unit and a common corridor arranged in a corridor shape around the stairwell portion.

Japanese Unexamined Patent Publication No. 2000-017856

The atrium portion as the atrium space described in Patent Document 1 is generally applied to high-rise condominiums, hotels, intelligent buildings, and the like.

By utilizing the atrium space, it is possible to create an attractiveness that attracts people to the upper floors in commercial facilities and the like. However, even if the atrium as described in Patent Document 1 is applied to commercial facilities as it is, it is difficult to attract people to the upper floors, and there is still room for improvement.

An object of the present invention is to provide a building and a design method including an atrium space capable of attracting a person to an upper floor.

The building according to the present invention that solves the above problems is a building having three or more floors, and is a predetermined reference floor, a first upper floor above the predetermined reference floor, and the predetermined reference floor. And a second upper layer above the first upper layer, and a stairwell space extending upward from the predetermined reference layer and adjacent to the first upper layer and the second upper layer. The first upper layer includes a first adjacent portion that is visible from the atrium space and is adjacent to the atrium space and extends along the atrium space in a plan view, and the second upper layer includes the atrium. In a plan view that can be seen from the space, the second adjacent portion is provided adjacent to the atrium space and extends along the atrium space, and the second adjacent portion is vertically heavy with the first adjacent portion. It has a part that does not become.

As one embodiment for solving the above problems, the first adjacent portion includes a first stage portion that protrudes toward the atrium space rather than the surroundings, and the second adjacent portion faces the atrium space rather than the surroundings. The second stage portion is provided with a protruding second stage portion, and the second stage portion includes a portion that does not vertically overlap with the first stage portion.

As one embodiment for solving the above problems, the second stage portion includes a portion that does not vertically overlap with the first stage portion when viewed from the atrium space side.

As one embodiment for solving the above-mentioned problems, the second stage portion protrudes toward the atrium space from the first stage portion.

A building as one embodiment for solving the above problems includes an elevating part that connects the first stage part and the second stage part and enables the first upper floor and the second upper floor to be moved back and forth. ..

The design method according to the present invention for solving the above problems is a method for designing a building having three or more floors, wherein the building has a predetermined reference floor and a first upper surface above the predetermined reference floor. The hierarchy, the predetermined reference hierarchy, the second upper hierarchy above the first upper hierarchy, and extending upward from the predetermined reference hierarchy, adjacent to the first upper hierarchy and the second upper hierarchy. A first adjacent portion, which includes a stairwell space and is visible from the stairwell space and is visible from the stairwell space and is adjacent to the stairwell space and extends along the stairwell space, is arranged in the first upper layer. In the second upper layer, a second adjacent portion that is visible from the atrium space and is adjacent to the atrium space and extends along the atrium space is arranged, and the first adjacent portion and the atrium space are arranged. The second adjacent portion is arranged so as to include a portion that does not overlap in the vertical direction.

According to the present invention, it is possible to provide a building and a design method including an atrium space capable of attracting a person to an upper floor.

It is a 1st floor plan view of the building as one Embodiment of this invention. It is a 2nd floor plan view of the building shown in FIG. It is a 3rd floor plan view of the building shown in FIG. It is a front view which shows the front view which looked at the elevating part from the atrium space side. It is a figure which shows the state that the 2nd stage part shown in FIG. 4 protrudes toward the atrium space side from the 1st stage part.

Hereinafter, embodiments of the building and the design method according to the present invention will be illustrated with reference to the drawings. The same reference numerals are given to common members and parts in each figure.

1 to 3 are plan views of the building 100 as an embodiment of the building according to the present invention. Specifically, FIG. 1 is a first floor plan view of the building 100. FIG. 2 is a second floor plan view of the building 100. FIG. 3 is a plan view of the third floor of the building 100. The building 100 is not particularly limited as long as it has a structure having three or more floors. Therefore, the building 100 may have a structure having only three floors shown in FIGS. 1 to 3, or may have a structure having four or more upper floors. Further, the building 100 is not limited to a commercial facility such as a department store, but may be a cultural facility such as a museum, for example. Commercial facilities are, for example, "department stores, markets, and other stores that sell goods (the ones listed in the preceding paragraph and those that sell photographs and other goods that are exclusively sexually intriguing)" in the attached sheet of the Building Standards Law Enforcement Regulations. Excludes) ”means buildings, etc. In addition, the cultural facility means, for example, a building corresponding to "museum or similar" or "exhibition hall" attached to the Building Standards Law Enforcement Regulations.

The building 100 includes a predetermined reference floor 10, a first upper floor 20 above the predetermined reference floor 10, and a second upper floor 30 above the predetermined reference floor 10 and the first upper floor 20. including. Further, the building 100 extends upward from the predetermined reference floor 10 and includes a stairwell space 40 adjacent to the first upper floor 20 and the second upper floor 30.

The predetermined reference layer 10 of the present embodiment is the first floor shown in FIG. The first upper floor 20 of the present embodiment is the second floor shown in FIG. The second upper floor of the present embodiment is the third floor shown in FIG. The atrium space 40 of the present embodiment extends upward from the first floor as the predetermined reference floor 10, and extends horizontally to the second floor as the first upper floor 20 and the third floor as the second upper floor 30. Adjacent to each other.

As shown in FIG. 1, the first floor as the predetermined reference layer 10 of the present embodiment has a plaza area 1 at the position of the atrium space 40 in a plan view, and a plurality of store areas 2 adjacent to the plaza area 1. And, including. In the present embodiment, the plaza area 1 and the store area 2 are partitioned by a linear reference line L0 that passes through the pillar cores of a plurality of pillars 15 arranged apart from each other in a plan view.

As shown in FIG. 2, the second floor as the first upper layer 20 of the present embodiment is, in plan view, the first adjacent portion 21 described later adjacent to the atrium space 40 and the atrium of the first adjacent portion 21. The store area 3 adjacent to the side opposite to the space 40 side is included. In the present embodiment, the first adjacent portion 21 and the store area 3 are partitioned by a linear reference line L2 that passes through the pillar cores of a plurality of pillars 25 arranged apart from each other in a plan view.

As shown in FIG. 3, the third floor as the second upper layer 30 of the present embodiment is a second adjacent portion 31 described later adjacent to the atrium space 40 and the atrium of the second adjacent portion 31 in a plan view. The store area 4 adjacent to the side opposite to the space 40 side is included. In the present embodiment, the second adjacent portion 31 and the store area 4 are partitioned by a linear reference line L4 that passes through the pillar cores of a plurality of pillars 35 arranged apart from each other in a plan view.

When the building 100 has four or more floors, the predetermined reference floor 10, the first upper floor 20, and the second upper floor 30 need not be the first to third floors. When the building 100 has a structure of four or more layers, the atrium space 40 may have a structure extending over at least three layers, and may have a structure extending over four or more layers.

As shown in FIGS. 1 to 3, the atrium space 40 of the present embodiment is unevenly arranged on one side of the building 100 in a plan view. That is, as shown in FIGS. 2 and 3, the atrium space 40 of the present embodiment is not surrounded by the first upper layer 20 and the second upper layer 30 in a plan view, and the first upper layer 20 in a plan view. And it is located on only one side (for example, the west side) with respect to the second upper layer 30. The position of the atrium space 40 in the building 100 is not limited to the position shown in the present embodiment, and may be, for example, an atrium space surrounded by an upper floor. However, unlike the present embodiment, the atrium space 40 is not surrounded by the first upper floor 20 and the second upper floor 30 in a plan view, and at least a part of the space is adjacent to the outer peripheral wall 101 of the building 100. Is preferable. By doing so, it is easy to take in light through the opening provided in the outer peripheral wall 101, the glass curtain wall constituting the outer peripheral wall 101, and the like, and the atrium space 40 can be made a bright and open space. It can also be seen from outside the building.

The first upper layer 20 includes a first adjacent portion 21 visible from the atrium space 40. As shown in FIG. 2, the first adjacent portion 21 is adjacent to the atrium space 40 and extends along the atrium space 40 in a plan view.

The second upper layer 30 includes a second adjacent portion 31 that is visible from the atrium space 40. As shown in FIG. 3, the second adjacent portion 31 is adjacent to the atrium space 40 and extends along the atrium space 40 in a plan view.

The first adjacent portion 21 is a pillar street that passes through the center of a plurality of pillars 25 arranged along the atrium space 40 and the division line L1 that divides the first upper layer 20 and the atrium space 40 in a plan view. It means a region sandwiched between the reference line L2 which is the core. The first adjacent portion 21 of the present embodiment is sandwiched between the lane marking line L1 and the reference line L2 in a direction orthogonal to the reference line L2 in a plan view (hereinafter, referred to as “passage width direction A”). It is composed of a portion 21a and a first stage portion 21b.

Further, the second adjacent portion 31 passes through the division line L3 that divides the second upper layer 30 and the atrium space 40 and the centers of a plurality of pillars 35 arranged along the atrium space 40 in a plan view. It means an area sandwiched between the reference line L4, which is the core of the pillar, and the reference line L4. The reference lines L0, L2, and L4 of the present embodiment have the same positions in a plan view. The second adjacent portion 31 of the present embodiment is sandwiched between the lane marking line L3 and the reference line L4 in a direction orthogonal to the reference line L4 in a plan view (the same direction as the passage width direction A), and the second passage portion 31a and the second passage portion 31a. It is composed of a stage portion 31b.

Here, the second adjacent portion 31 includes a portion that does not overlap with the first adjacent portion 21 in the vertical direction. In other words, in a plan view, the first adjacent portion 21 and the second adjacent portion 31 have a portion that does not overlap with each other. In this way, the first adjacent portion 21 arranged in the first upper layer 20 and the second adjacent portion 31 arranged in the second upper layer 30 are arranged so as to include portions that do not overlap in the vertical direction. Therefore, both the first adjacent portion 21 and the second adjacent portion 31 having different layers can be visually recognized from the position of the predetermined reference layer 10 through the atrium space 40. Therefore, the person in the reference layer 10 recognizes the difference in the position, shape, etc. of the first adjacent portion 21 and the second adjacent portion 31 in a plan view, and moves to the first upper layer 20 and the second upper layer 30. It is intriguing. As a result, the effect of attracting people in the standard hierarchy 10 to the upper floor can be expected.

More specifically, in the present embodiment, the second stage portion 31b includes a portion that does not overlap with the first stage portion 21b in the vertical direction. By doing so, the person in the reference layer 10 can more easily recognize the difference in the position, shape, etc. of the first adjacent portion 21 and the second adjacent portion 31 in a plan view. Therefore, the person in the reference layer 10 is more likely to be interested in the first upper layer 20 and the second upper layer 30. This can be expected to have the effect of attracting more people upstairs.

As described above, the first adjacent portion 21 includes a first stage portion 21b that protrudes toward the atrium space 40 from the surroundings. More specifically, the first stage portion 21b of the present embodiment is a portion of the first adjacent portion 21 that protrudes toward the atrium space 40. The first passage portion 21a of the present embodiment is a portion of the first adjacent portion 21 other than the first stage portion 21b. That is, the first stage portion 21b of the present embodiment is a portion that protrudes toward the atrium space 40 side from the first passage portion 21a.

Further, the second adjacent portion 31 includes a second stage portion 31b that protrudes toward the atrium space 40 from the surroundings. More specifically, the second stage portion 31b of the present embodiment is a portion of the second adjacent portion 31 that protrudes toward the atrium space 40. The second passage portion 31a of the present embodiment is a portion of the second adjacent portion 31 other than the second stage portion 31b. That is, the second stage portion 31b of the present embodiment is a portion that protrudes toward the atrium space 40 side from the second passage portion 31a.

In the first adjacent portion 21, there may be a plurality of first stage portions 21b. Further, in the second adjacent portion 31, there may be a plurality of second stage portions 31b. As described above, in the building 100 including the plurality of first stage portions 21b and the plurality of second stage portions 31b, at least one second stage portion 31b is vertically connected to at least one first stage portion 21b. It suffices to provide a non-overlapping part.

Further, the first adjacent portion 21 is provided with a handrail 22 at the position of the lane marking L1. Further, the second adjacent portion 31 is provided with a handrail 32 at the position of the lane marking L3. The handrails 22 and 32 include a viewing member such as glass or a plurality of crosspieces. Therefore, the handrails 22 and 32 are configured to be visible. Therefore, a person who is in the predetermined reference layer 10 can visually recognize the bustle of the first adjacent portion 21 and the second adjacent portion 31 through the handrails 22 and 32. As a result, the person in the reference layer 10 is more likely to be interested in the first upper layer 20 and the second upper layer 30. As a result, the effect of attracting more people to the upper floors can be expected.

Although glass walls and the like may be arranged at the positions of the marking lines L1 and L3, the handrails 22 and 32 are arranged as in the present embodiment, and the first adjacent portion 21 and the second adjacent portion 31 are respectively arranged. , It is preferable to communicate with the atrium space 40. By doing so, the unity of the first adjacent portion 21, the second adjacent portion 31, and the atrium space 40 can be emphasized, and the effect of attracting more people to the upper floor can be expected.

Further, as shown in FIG. 2, the width W1 of the first adjacent portion 21 is wider than the surroundings at the position of the first stage portion 21b. More specifically, the width W1 of the first adjacent portion 21 in the passage width direction A orthogonal to the reference line L2 in a plan view fluctuates along the atrium space 40, and is larger than the surroundings at the position of the first stage portion 21b. It is wide.

Further, as shown in FIG. 3, the width W2 of the second adjacent portion 31 is wider than the surroundings at the position of the second stage portion 31b. More specifically, the width W2 of the second adjacent portion 31 in the passage width direction A orthogonal to the reference line L4 in a plan view fluctuates along the atrium space 40, and is larger than the surroundings at the position of the second stage portion 31b. It is wide.

FIG. 4 is a front view showing a front view of an escalator as an elevating portion 51 connecting the first upper layer 20 and the second upper layer 30 as viewed from the atrium space 40 side. As shown in FIGS. 2 to 4, the escalator as the elevating part 51 is provided at a position connecting the first stage part 21b and the second stage part 31b. More specifically, the lower part of the escalator as the elevating part 51 is connected to the first stage part 21b of the first adjacent part 21 of the first upper layer 20. Further, the upper portion of the escalator as the elevating portion 51 is connected to the second stage portion 31b of the second adjacent portion 31 of the second upper layer 30. Therefore, a person can go back and forth between the first stage portion 21b of the first upper layer 20 and the second stage portion 31b of the second upper layer 30 by the escalator as the elevating portion 51 shown in FIGS. is there. By installing the elevating unit 51 so as to connect the first stage unit 21b and the second stage unit 31b in this way, the person in the reference layer 10 has an interest in the first upper layer 20 and the second upper layer 30. , The method for going to the first upper layer 20 and the second upper layer 30 can be recognized. Therefore, the effect of attracting more people to the upper floors can be expected.

Further, as shown in FIGS. 1 and 2, the predetermined reference layer 10 and the first upper layer 20 are connected by an escalator as another elevating unit 51. In addition, there may be yet another elevating part 51 connecting the predetermined reference layer 10 and the second upper layer 30.

The elevating part 51 is not limited to the escalator of this embodiment. The elevating part 51 may be a staircase, an elevator, or the like. However, by configuring the elevating unit 51 with an escalator, it is possible to improve the number of people that can be transported per unit time, which is the transportation efficiency between layers.

Next, further details of the first adjacent portion 21 and the second adjacent portion 31 in the building 100 will be described.

As described above, in the present embodiment, the second stage portion 31b includes a portion that does not overlap with the first stage portion 21b in the vertical direction. More specifically, the second stage portion 31b of the present embodiment includes a portion that does not vertically overlap with the first stage portion 21b in the front view (see FIG. 4) viewed from the atrium space 40 side. In other words, the width of the second stage portion 31b of the present embodiment does not match the width of the first stage portion 21b in the left-right direction in the front view (see FIG. 4), and / or with the first stage portion 21b. The center position in the left-right direction is different. By doing so, the person who is in the predetermined reference layer 10 can position the first stage portion 21b of the first adjacent portion 21 and the second stage portion 31b of the second adjacent portion 31 in a plan view. It is easy to recognize the difference in shape. Therefore, a person in a predetermined reference layer 10 is likely to be interested in the first upper layer 20 and the second upper layer 30. As a result, the effect of attracting people in the reference level 10 to higher floors can be expected.

Further, the second stage portion 31b may protrude toward the atrium space 40 from the first stage portion 21b. FIG. 5 is a diagram showing how the second stage portion 31b projects toward the atrium space 40 side from the first stage portion 21b. As shown in FIG. 5, the second stage portion 31b of the second upper layer 30 is projected toward the atrium space 40 side of the first stage portion 21b of the first upper layer 20 to be in the predetermined reference layer 10. A person can easily recognize the difference in the position, shape, etc. of the first stage portion 21b of the first adjacent portion 21 and the second stage portion 31b of the second adjacent portion 31 in a plan view. Therefore, a person in a predetermined reference layer 10 is likely to be interested in the first upper layer 20 and the second upper layer 30. As a result, the effect of attracting people in the reference level 10 to higher floors can be expected.

The second stage portion 31b includes a portion that does not vertically overlap with the first stage portion 21b when viewed from the front view from the atrium space 40 side (see FIG. 4), and the atrium space is larger than that of the first stage portion 21b. It may protrude toward 40.

Further, as shown in FIGS. 2 to 4, each of the first stage portion 21b and the second stage portion 31b of the present embodiment includes a lower slab material 61 and an upper slab material 62. At least a part of the upper slab material 62 is laminated with the lower slab material 61 in the vertical direction.

In the present embodiment, the first stage portion 21b and the second stage portion 31b each include a lower slab material 61 and an upper slab material 62, but the configuration is not limited to this. Only one of the first stage portion 21b and the second stage portion 31b may be configured to include the lower slab material 61 and the upper slab material 62.

Further, the first adjacent portion 21 of the present embodiment is cantilevered on the atrium space 40 side from a plurality of pillars 25 arranged along the reference line L2. Therefore, as shown in FIG. 5, the slab constituting the first adjacent portion 21 is configured to become thinner from the reference line L2 toward the atrium space 40. More specifically, in the first adjacent portion 21 of the present embodiment, the first stage portion 21b has a two-layer structure of the lower slab material 61 and the upper slab material 62, and the first passage portion 21a is the lower slab material 61 and the upper part. It has a three-layer structure including another slab material in addition to the slab material 62. The second adjacent portion 31 of the present embodiment has the same structure. However, the laminated structure of the slab materials of the first adjacent portion 21 and the second adjacent portion 31 is not limited to the structure of the present embodiment, and may be, for example, a stage portion in which three or more layers of slab materials are laminated. It may be a passage portion in which four or more layers of slab materials are laminated.

Further, the lower slab material 61 and the upper slab material 62 constituting the first stage portion 21b and the second stage portion 31b may be completely aligned in the horizontal direction and completely overlapped in the vertical direction. However, as in the present embodiment, it is preferable that the lower slab material 61 and the upper slab material 62 constituting the first stage portion 21b and the second stage portion 31b each have a portion that does not overlap in the vertical direction. In this way, the floor thickness of each of the first stage portion 21b and the second stage portion 31b can be adjusted according to the position. Therefore, it becomes easier to emphasize the peculiarities of the first stage portion 21b and the second stage portion 31b as compared with the first stage portion and the second stage portion having a uniform thickness.

In the present embodiment, the lower slab material 61 and the upper slab material 62 constituting the first stage portion 21b and the second stage portion 31b, respectively, are in the vertical direction in the front view (see FIG. 4) viewed from the atrium space 40 side. It has a non-overlapping part. Further, the upper slab material 62 may protrude toward the atrium space 40 more than the lower slab material 61. As described above, the positions of the non-overlapping portions of the lower slab member 61 and the upper slab member 62 constituting the first stage portion 21b and the second stage portion 31b are not particularly limited.

The portion where the lower slab material 61 and the upper slab material 62 constituting the first stage portion 21b and the second stage portion 31b do not overlap in the vertical direction may be designed, for example, according to the intended use of the position. In each of the first stage portion 21b and the second stage portion 31b, for example, the position where the escalator as the elevating portion 51 is connected may be a position where the lower slab material 61 and the upper slab material 62 overlap in the vertical direction. By doing so, it is possible to increase the floor thickness of the portion that supports the elevating portion 51 on which a vertical load is easily applied. On the other hand, for example, the lower slab material 61 and the upper slab are positioned so as not to directly support the elevating part 51 or a person from the lower side in the vertical direction, such as a position used only for placing decorative materials such as flowers. The positions may be such that the materials 62 do not overlap in the vertical direction. For example, the lower slab material 61 is projected from the upper slab material 62 in the left-right direction (see FIG. 4) in the front view (see FIG. Decorative materials such as may be arranged. In this way, the overlapping condition of the lower slab material 61 and the upper slab material 62 may be designed according to the use of each of the first stage portion 21b and the second stage portion 31b.

Further, as shown in FIG. 5, it is preferable that a protruding portion 62a projecting toward the stairwell space side is provided in the lower portion of the end surface of the upper slab material 62 on the stairwell space 40 side. In other words, it is preferable that the upper portion of the end face of the upper slab material 62 on the atrium space 40 side is chamfered. By doing so, it becomes easier for a person in the predetermined reference layer 10 to visually recognize the bustle of the first stage portion 21b and the second stage portion 31b. Further, the upper surface of the protrusion 62a may be used as a space for arranging decorative materials such as plants and flowers.

Not only the upper slab material 62, but also the lower slab material 61 is preferably provided with a protruding portion at the lower part of the end face on the atrium space 40 side for the same reason as described above.

The building and the design method according to the present invention are not limited to the configuration specifically shown in the above-described embodiment and the design method of the configuration, and various modifications and modifications are made as long as the gist of the invention described in the claims is not deviated. It can be changed. Therefore, it is preferable that the number of layers from the reference layer 10 to the second upper layer 30 is set so that the first upper layer 20 and the second upper layer 30 can be visually recognized from the reference layer 10 through the atrium space 40. Although it depends on the floor area at the position of the atrium space 40 in the reference layer 10, for example, the number of layers is preferably 3 to 5 layers.

The present invention relates to buildings and design methods.

1: Square area 2, 3, 4: Store area 10: Reference level 15: Pillar 20: First upper level 21: First adjacent part 21a: First aisle part 21b: First stage part 22: Handrail 25: Pillar 30: Second upper layer 31: Second adjacent portion 31a: Second passage portion 31b: Second stage portion 32: Handrail 35: Pillar 40: Atrium space 51: Elevating portion 61: Lower slab material 62: Upper slab material 62a : Projection 100: Building 101: Outer wall of the building A: Aisle width direction L0: Reference line L0 for partitioning the plaza and the store area in the reference floor L1: Division line L2 for partitioning the first upper floor and the atrium space Reference line L3 which is a pillar passage core passing through the center of a plurality of pillars arranged along the atrium space in the first upper layer: Division line L4 for partitioning the second upper layer and the atrium space: Atrium in the second upper layer Reference line W1: width of the first adjacent portion W2: width of the second adjacent portion, which is a pillar passage core passing through the centers of a plurality of columns arranged along the space.

Claims (6)

A building with three or more floors
With a predetermined reference hierarchy
The first upper layer above the predetermined reference layer and
The predetermined reference layer and the second upper layer above the first upper layer,
Includes a stairwell space extending upward from the predetermined reference layer and adjacent to the first upper layer and the second upper layer.
The first upper layer includes a first adjacent portion that is visible from the atrium space and is adjacent to the atrium space and extends along the atrium space in a plan view.
The second upper layer includes a second adjacent portion that is visible from the atrium space and is adjacent to the atrium space and extends along the atrium space in a plan view.
The second adjacent portion is a building including a portion that does not vertically overlap with the first adjacent portion. The first adjacent portion includes a first stage portion that protrudes toward the atrium space rather than the surroundings.
The second adjacent portion includes a second stage portion that protrudes toward the atrium space rather than the surroundings.
The building according to claim 1, wherein the second stage portion includes a portion that does not vertically overlap with the first stage portion. The building according to claim 2, wherein the second stage portion includes a portion that does not vertically overlap with the first stage portion when viewed from the atrium space side. The building according to claim 2 or 3, wherein the second stage portion protrudes from the first stage portion toward the atrium space. The invention according to any one of claims 2 to 4, further comprising an elevating unit that connects the first stage unit and the second stage unit and enables the first upper layer and the second upper layer to be moved back and forth. building. It is a design method for buildings with three or more floors.
The building
With a predetermined reference hierarchy
The first upper layer above the predetermined reference layer and
The predetermined reference layer and the second upper layer above the first upper layer,
Includes a stairwell space extending upward from the predetermined reference layer and adjacent to the first upper layer and the second upper layer.
In the first upper layer, a first adjacent portion that is visible from the atrium space and is adjacent to the atrium space and extends along the atrium space is arranged in a plan view.
In the second upper layer, a second adjacent portion that is visible from the atrium space and is adjacent to the atrium space and extends along the atrium space is arranged in a plan view.
A design method in which the first adjacent portion and the second adjacent portion are arranged so as to include portions that do not overlap in the vertical direction.

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