JP6842278B2 - housing complex - Google Patents

Description

The present invention relates to a multi-storey apartment building having a height of more than 31 meters.

When trying to build an apartment house with a large number of dwelling units on a small site, it often becomes a so-called plate-like shape with a simple flat shape. An example of a plate-shaped apartment house is shown in Patent Document 1. In such a plate-shaped apartment house, multiple dwelling units are provided side by side on each floor, and a common corridor connecting multiple dwelling units is provided, an elevator connecting the evacuation floor and all floors, and an evacuation floor. There are stairs connecting the building to the common corridors on all floors. In this apartment building, the elevator and its boarding / alighting lobby are located on the opposite side of the common corridor from the dwelling unit.

Japanese Patent No. 4246078 (Fig. 2)

On the other hand, if we try to secure more dwelling units, the building will become taller. In principle, buildings with a height of more than 31 meters must be equipped with an emergency elevator, and the emergency elevator must be equipped with ancillary rooms that meet certain requirements. There is.

However, in the above-mentioned prior art and the like, when an emergency elevator and an attached room are to be further arranged, they are usually provided in a state of projecting to the opposite side of the dwelling unit with respect to the common corridor. Then, the protrusion to the outside becomes large, it becomes difficult to meet the legal regulations such as the diagonal line restriction, the building cannot be laid out well on the site, and the construction plan may not be established.

In addition, the emergency elevator and the attached room are provided for firefighting activities, and in relation to the evacuation route in an emergency, it is difficult to change from the above layout that has been conventionally adopted.

In view of the above circumstances, an object of the present invention is to provide an apartment house that can be built compactly even on a small site while securing a large number of dwelling units and that has a sufficient evacuation method in an emergency. There is.

The housing complex according to the present invention is
It is a multi-story apartment building with a height of over 31 meters.
In each floor, a plurality of total dwelling units are provided side-by-side, the shared corridor is provided for connecting the plurality of all dwelling units,
An emergency elevator connecting the evacuation floor and all floors, and an evacuation staircase connecting the evacuation floor and the common corridor on all floors are provided.
The emergency elevator is provided in a state of being in contact with the door boundary wall partitioning the adjacent dwelling units and in a state of facing the common corridor.
The corridor portion of the common corridor located on one side of the emergency elevator and the corridor portion of the common corridor located on the other side of the emergency elevator are attached to the common corridor. People can freely come and go through the room.

According to the present invention, on each floor, an emergency elevator is arranged in a state of being in contact with a doorway wall, and an annex is arranged between a corridor portion located on one side and a corridor portion located on the other side. I am trying to do it. As a result, the emergency elevator and the attached room are arranged so as to enter the dwelling unit side, the protrusion of the emergency elevator and the attached room to the outside is suppressed, and the whole becomes a cohesive and compact shape. For this reason, while securing a large number of dwelling units, it becomes easier to meet legal regulations such as diagonal line restrictions even on a small site, and the housing can meet various site conditions.
Moreover, on each floor, people can freely come and go between the corridor portion on one side and the corridor portion on the other side through an attached room. Therefore, in an emergency such as a fire, when the resident of the dwelling unit facing the corridor on one side and the resident of the dwelling unit facing the corridor on the other side evacuate the attached room toward the evacuation floor. It can be used as a primary safety zone that can be temporarily evacuated, and it is possible to evacuate in an emergency.
As described above, according to the present invention, it is possible to build a compact building even on a small site while securing a large number of dwelling units, and a sufficient evacuation method in an emergency is also secured.
In addition, according to the present invention, the following actions and effects are also achieved. According to the present invention, since the emergency elevator and the attached room are arranged in a place where the floor area of some of the dwelling units is reduced, a dwelling unit pattern having a relatively small floor area can be created on each floor, and the variation of the plan increases. In order to make it an apartment house that can easily meet the needs of various customers, and to make the best use of the legal volume ratio, the reduced floor area will be allocated as the floor area of the higher floors, and the building will be made higher and the view will be seen. It is possible to make an apartment house with a dwelling unit with high added value.

In the present invention
The evacuation staircase is provided so as to project from the common corridor to the side opposite to the dwelling unit.
The attached room is provided in a state where natural smoke can be discharged directly from the attached room.
It is preferable that the evacuation staircase is provided at a position away from the attached room in the extending direction of the common corridor.

According to this configuration, the evacuation stairs are separated from the attached room. Therefore, for example, even if the evacuation stairs are used as outdoor evacuation stairs and natural smoke is discharged from the attached room to the outside in the event of a fire, it is difficult for smoke to reach the evacuation stairs. Become. Therefore, it is not necessary to install a mechanical smoke exhaust facility in the attached room, and the structure can be simplified.

In the present invention
A plurality of the evacuation stairs are connected to the common corridor,
It is preferable that the attached room is provided at a position between the adjacent evacuation stairs in the extending direction of the common corridor.

According to this configuration, in an emergency, residents of the dwelling units on each floor can evacuate from multiple evacuation stairs to the evacuation floor through the common corridor, or the attached room, which is the primary safety zone, is used as a base. It is possible to evacuate toward the evacuation floor from both the evacuation stairs located on one side of the room and the evacuation stairs located on the other side of the attached room, and it is possible to increase the variation of evacuation routes. ..

It is an east side elevation view which shows the appearance of an apartment house. It is a schematic view of a plan view which shows the layout of the floor where a dwelling unit is arranged in an apartment house. It is a schematic diagram of the plan view which shows another embodiment. It is a schematic diagram of the plan view which shows another embodiment.

Hereinafter, embodiments that are an example of the present invention will be described with reference to the drawings.
FIG. 1 shows a high-rise multi-story (n-story, for example, 26-story) plate-shaped apartment house having a height of more than 31 meters. This apartment house is a fireproof building. In FIG. 1, 1FL, 2FL, 3FL, and nFL indicate the floor level of each floor, and PHFL indicates the floor level of the rooftop penthouse PH.

As shown in FIG. 2, in this apartment house, a plurality of dwelling units 1 are provided side by side along the east-west direction on each floor, and a straight common corridor 2 connecting the plurality of dwelling units 1 is provided. ..

As shown in FIGS. 1 and 2, there are a plurality of apartments (two in this embodiment) connecting the evacuation floor A (1st floor) and the common corridors 2 on all other floors (from the 2nd floor to the top floor). ), A plurality of elevators 4 (two in this embodiment) connecting the evacuation floor A and all other floors, and a boarding / alighting lobby 5 for the elevator 4 are provided.

As shown in FIG. 2, the layout of each floor is such that a plurality of units (two in the present embodiment) are combined. The unit 6 includes a unit 6A on one side located on the west side and a unit 6B on the other side adjacent to the unit 6A located on the east side on one side.

Each unit 6 has a plurality of (three in this embodiment) dwelling units 1, one common corridor connecting each dwelling unit 1, one evacuation staircase 3, one elevator 4, one boarding / alighting lobby 5, and so on. A part of the balcony 7 includes one evacuation hatch 9.

The plurality of dwelling units 1 belong to the unit 6A on one side, and belong to the plurality of dwelling units 1A on one side and the unit 6B on the other side in which the entrance door 10 is connected to the corridor portion 2A on one side of the common corridor 2. , A plurality of dwelling units 1B on the other side, in which the entrance door 10 is connected to the corridor portion 2B on the other side of the common corridor 2. The dwelling units 1A on one side and the dwelling units 1B on the other side are separated by a door boundary wall 11. The easternmost dwelling unit 1A of the one-sided dwelling unit 1A and the westernmost dwelling unit 1B of the other side dwelling unit 1B are separated by a door boundary wall 8.

The common corridor 2 is arranged in the northern part of the apartment house. The common corridor 2 is an open corridor open to the outside air and is well-ventilated. The common corridor 2 belongs to the unit 6A on one side, and in the extending direction of the common corridor 2, the corridor portion 2A located on one side of the emergency elevator 4A and the attached room 5A for the emergency elevator 4A, and the other. It belongs to the unit 6B on the side, and is provided with a corridor portion 2B located on the other side of the emergency elevator 4A and the attached room 5A for the emergency elevator 4A in the extending direction of the common corridor 2.

Each evacuation staircase 3 is arranged in the northern part of the apartment house. Each evacuation staircase 3 is provided so as to project to the opposite side of the dwelling unit 1 with the common corridor 2 in between. Each evacuation staircase 3 is an outdoor evacuation staircase open to the outside air. The evacuation stairs 3 include an evacuation staircase 3A on one side belonging to the unit 6A on one side and an evacuation staircase 3B on the other side belonging to the unit 6B on the other side.

The elevator 4 belongs to the emergency elevator 4A that belongs to the unit 6A on one side and connects the evacuation floor A and all the other floors, and the passenger elevator that belongs to the unit 6B on the other side and connects the evacuation floor A and all the other floors. 4B, is provided.

As shown in FIG. 2, the emergency elevator 4A and the passenger elevator 4B are provided so as to be in contact with the door boundary wall 8 that separates the adjacent dwelling units 1A and 1B and to face the common corridor 2. .. The emergency elevator 4A and the passenger elevator 4B are arranged at locations where the occupied space of the dwelling unit 1 is reduced. That is, the emergency elevator 4A enters the space in which the northeast corner of the easternmost dwelling unit 1A of the dwelling unit 1A on one side is reduced so as not to protrude into the common corridor 2, and the passenger elevator 4B is in the common corridor 2. Of the dwelling units 1B on the other side, the northwest corner of the dwelling unit 1B at the western end is reduced so as not to protrude into the space, and these dwelling units 1A and 1B have a smaller floor area.

The boarding / alighting lobby 5 includes an attached room 5A for the emergency elevator 4A (boarding / alighting lobby for the emergency elevator 4A) and a boarding / alighting lobby 5B for the passenger elevator 4B. The attached room 5A and the boarding / alighting lobby 5B are provided at positions between adjacent evacuation stairs 3 in the extending direction of the common corridor 2. The attached room 5A and the boarding / alighting lobby 5B are arranged so as not to project outward from the evacuation stairs 3.

[About the attached room for the emergency elevator]
The attached room 5A for the emergency elevator 4A is located between the corridor portion 2A on one side and the corridor portion 2B on the other side. The corridor portion 2A on one side and the corridor portion 2B on the other side are configured so that people can freely come and go through the attached room 5A in both normal times and in an emergency such as a fire. ..

The attached room 5A is provided with a plurality of fire doors 12 (two in the present embodiment) that are closed at any time, and a plurality of smoke exhaust windows 13 (two in the present embodiment) as natural smoke exhaust equipment. There is.

As shown in FIG. 2, the fire door 12 is configured as a door type that can be opened and closed. The fire door 12 is normally in an open state (a state shown by a solid line in FIG. 2). When the smoke of a fire is detected by a smoke detector (not shown) arranged at a predetermined position, the fire door 12 is automatically closed (the state shown by the alternate long and short dash line in FIG. 2). , The attached room 5A and other areas are separated. The closed fire door 12 can be opened and closed manually.
In the event of a fire, by manually opening the fire door 12, people can come and go between the attached room 5A and the corridor portion 2A on one side, and between the attached room 5A and the corridor portion 2A on the one side. It has become like.

The fire door 12 includes a fire door 12A on one side facing the corridor portion 2A on one side and a fire door 12B on the other side facing the corridor portion 2A on the other side. The fire door 12A on one side is composed of a foldable door. The fire door 12B on the other side is composed of a double door.

The smoke exhaust window 13 is located on the side opposite to the emergency elevator 4A in the attached room 5A and is provided so as to face the outside on the north side. The smoke exhaust window 13 can exhaust the smoke of the attached room 5A to the outside in the event of a fire. That is, the attached chamber 5A is provided in a state where natural smoke can be discharged directly from the attached chamber 5A.

Here, the evacuation staircase 3 is provided at a position away from the attached room 5A so as not to be in contact with the attached room 5A in the extending direction of the common corridor 2. To add an explanation, the evacuation stairs 3 are arranged at a location separated from the attached room 5A by a predetermined distance T, which is a required separation distance as an outdoor evacuation staircase. Further, a certain distance is secured between the evacuation stairs 3 and the smoke exhaust window 13 so that the smoke from the smoke exhaust window 13 in the event of a fire does not easily reach the evacuation stairs 3.

[About balconies and evacuation hatches]
As shown in FIG. 2, the balcony 7 is provided over all of the dwelling units 1 included in the unit 6A on one side and the unit 6B on the other side. The balcony 7 is arranged in the southern part of the apartment house. Separable plates 14 that can be kicked off are provided between the portions of the balcony 7 assigned to the dwelling units 1.

A plurality of evacuation hatches 9 (two in the present embodiment) are provided on the balcony 7. The evacuation hatch 9 belongs to the unit 6A on one side and belongs to the evacuation hatch 9A on one side arranged at one end of the balcony 7 and the unit 6B on the other side, and belongs to the other end of the balcony 7. The other side of the evacuation hatch 9B, which is arranged in, is provided.

Each evacuation hatch 9 is in contact with the balcony 7 on the adjacent floor. The evacuation hatch 9 is arranged so as to be displaced from the evacuation hatch 9 on the adjacent floor. In the event of an emergency such as a fire, the partition plate 14 is destroyed as necessary, the balcony 7 is moved toward the evacuation hatch 9, and the evacuation hatch 9 can be moved toward the evacuation floor A.

[About normal usage]
Normally, the fire door 12A on one side and the fire door 12B on the other side are both open (the state shown by the solid line in FIG. 2), and the attached room 5A for the emergency elevator 4A. And the boarding / alighting lobby 5B for the passenger elevator 4B are integrated to form a large elevator hall. Therefore, the resident of the dwelling unit 1A on one side can access both the emergency elevator 4A and the passenger elevator 4B. In addition, the resident of the dwelling unit 1B on the other side can also access both the emergency elevator 4A and the passenger elevator 4B.

That is, in the normal state, the resident of each dwelling unit 1 can use the two elevators 4. As a result, the waiting time of the elevator 4 can be shortened. Further, even if one of the emergency elevator 4A and the passenger elevator 4B becomes temporarily unavailable due to inspection, for example, the other of the emergency elevator 4A and the passenger elevator 4B is used to move to the other floor. Since it is possible, it is less likely to cause inconvenience.

In addition, normally, it is not necessary for the resident of the dwelling unit 1A on one side to pass in front of the entrance door 10 of the dwelling unit 1B on the other side, and the resident of the dwelling unit 1B on the other side is on the one side. There is no need to pass in front of the entrance door 10 of the dwelling unit 1A. Therefore, the privacy of each dwelling unit 1 is high.

[Evacuation in an emergency (fire)]
The case of evacuating from the dwelling unit 1A on one side toward the evacuation floor A will be described as an example. For example, it is possible to move from the dwelling unit 1A on one side to the corridor portion 2A on one side, and evacuate from the corridor portion 2A on one side to the evacuation floor A using the evacuation stairs 3A on one side (first evacuation shown in FIG. 2). Route P1).

Further, for example, the dwelling unit 1A on one side is moved to the corridor portion 2A on one side, and the fire door 12A on one side is manually opened from the corridor portion 2A on one side to the attached room 5A as needed. Then, the fire door 12B on the other side is manually opened from the attached room 5A as needed, moved to the evacuation staircase 3B on the other side through the corridor portion 2A on the other side, and evacuated using the evacuation staircase 3B on the other side. You can evacuate toward floor A (second evacuation route P2 shown in FIG. 2). In addition, it is possible to return from the attached room 5A to the corridor portion 2A on one side and evacuate from the corridor portion 2A on one side toward the evacuation floor A using the evacuation stairs 3A on the one side (third evacuation route P3 shown in FIG. 2). ..

At this time, since the smoke exhaust window 13 provided in the attached room 5A is sufficiently separated from the evacuation stairs 3A on one side and the evacuation stairs 3B on the other side, the evacuation stairs 3A on one side and the evacuation stairs 3B on the other side are sufficiently separated. When evacuating, the smoke discharged from the smoke exhaust window 13 is less likely to reach.

Also, for example, after moving from the dwelling unit 1A on one side to the attached room 5A, wait in the attached room 5A, wait for the paramedics such as firefighters to arrive, and evacuate with the rescue staff by the emergency elevator 4A. It is possible (fourth evacuation route P4 shown in FIG. 2).

Further, for example, the unit moves from the dwelling unit 1A on one side to the balcony 7, moves to the evacuation hatch 9A on one side while destroying the partition plate 14, and descends to the balcony 7 downstairs using the evacuation hatch 9A on the one side. By repeating the movement in the same manner using the evacuation hatch 9B downstairs, it is possible to evacuate toward the evacuation floor A (fifth evacuation route P5 shown in FIG. 2).

Further, for example, the unit moves from the dwelling unit 1A on one side to the balcony 7, moves to the evacuation hatch 9B on the other side while destroying the partition plate 14, and descends to the balcony 7 downstairs using the evacuation hatch 9B on the other side. By repeating the movement in the same manner using the evacuation hatch 9B downstairs, it is possible to evacuate toward the evacuation floor A (sixth evacuation route P6 shown in FIG. 2).

In this way, a large number of evacuation routes from the dwelling unit 1A on one side in an emergency such as a fire are secured, and similarly, a large number of evacuation routes from all the dwelling units 1 in an emergency such as a fire are secured. It is secured. Further, in an emergency such as a fire, the attached room 5A can be accessed from both the dwelling unit 1A on one side and the dwelling unit 1B on the other side, so that the attached room 5A can be evacuated first and foremost safely in an emergency. It can be used as a primary safety zone where Therefore, it is possible to construct a condominium that is highly convenient and has excellent safety.

Further, as shown in FIG. 2, since the emergency elevator 4A and the passenger elevator 4B are arranged in the place where the floor area of a part of the dwelling units 1 is reduced, the attached room 5A and the passenger elevator for the emergency elevator 4A are arranged. The boarding / alighting lobby 5B for 4B is arranged so that it does not protrude significantly to the outside in a plan view. Then, in order to make the best use of the allowed floor area ratio, the reduced floor area is allocated to the floor area of the dwelling unit 1 having a floor height. Therefore, as shown in FIG. 1, a high floor with a good view (for example, It is possible to secure a dwelling unit 1 on the nth floor). For this reason, it is possible to construct a high-class, high-rise plate-shaped apartment house that can be reasonably compactly built even on a small site while securing a large number of dwelling units.

[Another Embodiment]
Hereinafter, another embodiment obtained by modifying the above embodiment will be described. The following alternative embodiments can be applied in combination to the above embodiments as long as there is no contradiction. The scope of the present invention is not limited to the contents shown in each embodiment.

(1) In the above embodiment, a person can come and go between the corridor portion 2A on one side and the corridor portion 2B on the other side only through the attached room 5A. Not limited to this.

(1-1) For example, as shown in FIG. 3, a detour corridor 20 arranged so as to connect the corridor portion 2A on one side and the corridor portion 2B on the other side and bypass the outside of the attached room 5A is separately provided. It may be provided. The detour corridor 20 can be an outdoor corridor open to the outside air. A wall portion 21 is provided between the detour corridor 20 and the attached room 5A, and the detour corridor 20 does not directly communicate with the attached room 5A. According to such a layout, people can come and go between the corridor portion 2A on one side and the corridor portion 2B on the other side through the detour corridor 20, and variations of the evacuation route in an emergency can be obtained. Can be increased. In the present embodiment (FIG. 3), a smoke exhaust window is provided at a high position near the ceiling of the wall portion 21 that separates the detour corridor 20 and the attached room 5A. In the event of a fire or the like, natural smoke can be exhausted from the smoke exhaust window.

(1-2) Further, for example, as shown in FIG. 4, a continuous corridor 30 is arranged so as to connect the corridor portion 2A on one side and the corridor portion 2B on the other side and bypass the outside of the attached room 5A. May be provided separately. A communication door 31 that can be manually opened and closed is arranged between the corridor portion 2A on one side and the corridor 30 and between the corridor portion 2B on the other side and the corridor 30.
The communication corridor 30 communicates with the attached room 5A, and the communication corridor 30 also constitutes a part of the elevator hall. As a result, a large floor area of the elevator hall can be secured, and the connecting door 31 can be manually opened and closed between the corridor portion 2A on one side and the corridor portion 2B on the other side via the communication corridor 30. People can come and go, and the variation of evacuation routes in an emergency can be increased. Also in the present embodiment (FIG. 4), natural smoke can be exhausted from the smoke exhaust window 13 in the event of a fire or the like.

(2) In the above embodiment, the fire door 12 is illustrated so that it can be manually opened and closed even after it is closed in an emergency, but the present invention is not limited to this. For example, the fire door 12 may not be manually opened and closed when it is closed in an emergency. In this case, the fire door 12 is provided with an openable and closable door (or child door), and when the fire door 12 is closed, the door (or child door) is passed through the fire door 12 to form the attached room 5A and the common corridor 2. It is preferable to enable movement between the corridor portions 2A and 2B.

(3) In the above embodiment, a door type fire door 12 is illustrated, but the present invention is not limited to this. For example, the fire door 12 may be a shutter type instead of a door type. In this case, the shutter-type fire door will be provided with a child door or a through door that allows people to come and go between the attached room 5A and the corridor portions 2A and 2B of the common corridor 2 by opening and closing manually. Become.

(4) In the above embodiment, a smoke detector is used to detect a fire, but the present invention is not limited to this. For example, the fire may be detected by another detector such as a heat detector or a flame detector.

(5) In the above embodiment, a smoke exhaust window is provided as a natural smoke exhaust facility in the attached room 5A, and the smoke exhaust window includes various types such as an outside window and a sliding window. Windows can be selected. Further, the smoke exhaust window may be opened and closed manually, or may be automatically opened in the event of a fire. Further, as the natural smoke exhaust equipment of the attached room 5A, a simple opening (s) may be provided instead of the smoke exhaust window. The size and installation height of such smoke exhaust windows and openings can be variously set according to the conditions.

(6) In the above embodiment, the attached room 5A is provided in a state where natural smoke can be discharged directly from the attached room 5A (the attached room 5A is provided with a natural smoke exhaust facility). However, it is not limited to this. For example, the attached chamber 5A may be provided with a mechanical smoke exhaust facility so that smoke can be forcibly exhausted from the attached chamber 5A by the mechanical smoke exhaust facility in the event of a fire or the like.

(7) In the above embodiment, the one provided with the emergency elevator 4A and the passenger elevator 4B is illustrated, but the present invention is not limited to this. For example, the passenger elevator 4B may be replaced with another emergency elevator.

(8) In the above embodiment, the common corridor 2 which is an open corridor open to the outside air is illustrated, but the present invention is not limited to this. For example, the common corridor 2 may be a corridor that is not exposed to the outside.

(9) In the above embodiment, an outdoor evacuation staircase opened to the outside air is illustrated as the evacuation staircase 3, but the evacuation staircase is not limited to this. For example, the evacuation staircase 3 may be replaced with an indoor evacuation staircase shielded from the outside air, or may be replaced with a special evacuation staircase satisfying a predetermined requirement.

(10) In the above embodiment, each unit 6 has three dwelling units 1, one common corridor 2 connecting each dwelling unit 1, one evacuation staircase 3, one elevator 4, and one boarding / alighting lobby 5. An example is provided in which a part of the balcony 7 and one evacuation hatch 9 are provided, but the present invention is not limited to this. For example, each unit 6 may include one, two, four or more dwelling units 1. Further, for example, each unit 6 may be provided with two or more elevators 4 and a boarding / alighting lobby 5. Further, for example, each unit 6 may be provided with two or more evacuation hatches 9.

(11) In the above embodiment, two units 6 are provided on each floor, but the present invention is not limited to this. For example, each floor may be equipped with three or more units 6.

(12) In the above embodiment, a plurality of dwelling units 1 are provided side by side along the east-west direction, but the present invention is not limited to this. For example, a plurality of dwelling units 1 may be provided side by side along the north-south direction, and the dwelling units 1 may be arranged in various directions.

The present invention can be used in a multi-story apartment building having a height of more than 31 meters.

1: Dwelling unit 2: Common corridor 2A, 2B: Corridor part 3: Evacuation stairs 4A: Emergency elevator 5A: Attached room 8: Door boundary wall A: Evacuation floor

Claims (3)

It is a multi-story apartment building with a height of over 31 meters.
In each floor, a plurality of total dwelling units are provided side-by-side, the shared corridor is provided for connecting the plurality of all dwelling units,
An emergency elevator connecting the evacuation floor and all floors, and an evacuation staircase connecting the evacuation floor and the common corridor on all floors are provided.
The emergency elevator is provided in a state of being in contact with the door boundary wall partitioning the adjacent dwelling units and in a state of facing the common corridor.
The corridor portion of the common corridor located on one side of the emergency elevator and the corridor portion of the common corridor located on the other side of the emergency elevator are attached to the common corridor. An apartment house where people can freely come and go through the rooms. The evacuation staircase is provided so as to project from the common corridor to the side opposite to the dwelling unit.
The attached room is provided in a state where natural smoke can be discharged directly from the attached room.
The apartment house according to claim 1, wherein the evacuation staircase is provided at a position away from the attached room in the extending direction of the common corridor. A plurality of the evacuation stairs are connected to the common corridor,
The apartment house according to claim 1 or 2, wherein the annex is provided at a position between adjacent evacuation stairs in the extending direction of the common corridor.

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