JPH1088832A - High rise apartment house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure the safety of a corridor as a first safe segment when a disaster broke out and shorten an escaping passage to a second safe segment in a center core type high rise apartment house. SOLUTION: This high rise apartment house is arranged to place a corridor 2 around a center core section 1 in the center of a building and provide a special escaping staircase on both ends of the corridor 2 by way of respective attached rooms 7a and 7b and lay out an emergency elevator 9 at opposed positions of the special escaping staircase 6, thereby constituting a doughnut- shaped center core type area which forms a closable escaping passage. The corridor 2 is divided into two segments at the attached room 10 of the emergency elevator 9 where one segment positioned at a disaster arising area is defined as an escaping corridor 2a, which is a primary safety segment while the attached room 10 of the emergency elevator 9 and the attached room 7a, which continues with an escaping corridor 2a, which is the primary safety segment, is defined as a secondary safety segment. The attached room of the special escaping staircase 6 which continues with the escaping corridor 2b, which is a third safety segment, is defined as a fourth safety segment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an evacuation route on a residential floor in a multi-story high-rise building including not only a high-rise apartment building but also an office, a hotel and the like.

[0002]

2. Description of the Related Art An example of a center-core type high-rise apartment house is shown in a cross-sectional plan view of FIG. 2, in which a corridor 2 is arranged in a U-shape around a center core 1 and a ring is formed facing the corridor 2. Each chamber 3 is arranged in a shape. In the figure, reference numeral 4 denotes an all-around balcony arranged on the peripheral surface of the building, and reference numeral 5 denotes an entrance to the room 3 from the corridor 2.

[0003] The center core unit 1 includes a lounge 7a,
7b, two special evacuation stairs 6 are provided at the two ends of the corridor 2 at the center, and a general passenger elevator 8 and an emergency elevator for firefighting activities are used at the opposite position of the special evacuation stairs 6 9 and a corridor 2 between the general passenger elevator 8 and the ancillary room 10 arranged in front of the emergency elevator 9 and a fire-resistant wall. In the figure, reference numeral 11 denotes a pipe space.

[0004] In a high-rise multi-story house having such a layout, an evacuation route in the event of a disaster such as a fire is determined by the corridor 2
Is the primary safety section, and the rooms 7a and 7b of the special evacuation stairs 6
Is a secondary safety compartment. This was in accordance with the conventional disaster prevention plan that determined that "evacuation through another room is not preferred."

In order to evacuate in the event of a disaster, the room 3
From the entrance 5 to the corridor 2 which is the primary security section, through the corridor 2 to the secondary rooms 7a and 7b which are the secondary security sections,
Evacuate from here using the special evacuation stairs 6.

[0006]

The lounges 7a and 7b, which are secondary safety compartments, are located at both ends of the corridor 2.
Has a long U-shape that surrounds the center core 1, so that, for example, when the room 3a is a fire source, residents of the next room 3b must evacuate to the nearby auxiliary room 7a. In the difficult places, such as through the full length of this corridor 2,
I had to evacuate to another lounge 7b,
The evacuation route becomes longer and there is a problem with safety.

Further, since the corridor 2 is arranged so as to surround the center core portion 1, when the smoke from the room 3a flows into the corridor 2, the entire corridor 2 is contaminated with the smoke and functions as a primary safety section. May not be fulfilled.
In order to cope with such a situation, a smoke exhaust system is conventionally installed in the corridor 2, but it is not sufficient for safety.

[0008] An object of the present invention is to solve the above-mentioned disadvantages of the prior art, to secure the safety of a corridor as a primary security section in the event of a disaster in a center-core high-rise apartment building, and to evacuate to a secondary security section. It is an object of the present invention to provide a high-rise apartment which can shorten a route.

According to the present invention, in order to achieve the above object, a corridor is arranged around a core portion in the center of a building, and special evacuation stairs are provided at both ends of the corridor through vestibules, respectively. In a donut-shaped center-core high-rise apartment building with a closed evacuation route formed by disposing an emergency elevator at the opposing position, the corridor is divided into two by an emergency elevator lounge and located in the disaster occurrence area The corridor of one compartment is the primary security compartment, the annex of the emergency elevator and the special evacuation staircase following the corridor that serves as the primary security compartment are the secondary security compartment, and the corridor of the other compartment is the tertiary security compartment. The gist is that the annex room of the special evacuation stairs following the corridor, which is the tertiary security section, is to be the quaternary security section.

[0010] The partition between the auxiliary elevator room and the passenger elevator is divided by a smoke-linked self-closing fire door. Also,
A natural air supply duct and a mechanical smoke exhaust system will be installed in each annex of the special evacuation stairs and emergency elevators, and an all-around balcony will be provided on the outer peripheral surface of the building, and an evacuation hatch to the lower floor will be provided on the balcony. The point is to provide.

According to the first aspect of the present invention, the corridor is divided into two sections by an emergency elevator lounge, one of which is a primary safety section, and the subsequent emergency elevator lounge and special evacuation stairs. By making the annex room a secondary security section, it is possible to evacuate from the primary security section to the secondary security section within a short distance of about half the length of the corridor in a short time. From this secondary security section, it is possible to safely evacuate to the tertiary security section, which is the corridor of the other section, and to the quaternary security section, which is the vestibule of the special evacuation stairs that follows.

[0012] The corridor is located in an emergency elevator lounge.
Since it is divided into two sections, it is possible to prevent the entire corridor (primary safety section) from being contaminated with smoke.

According to the second aspect of the present invention, in addition to the above-mentioned functions, a natural air supply duct and a mechanical smoke exhaust system are provided in each of the annexes of the special evacuation stairs and the emergency elevator. The function as the next safety section can be ensured.

According to the third aspect of the present invention, in addition to the above-mentioned functions, a full-scale balcony is provided on the outer peripheral surface of the building, and if it is not possible to evacuate from the corridor facing the room, the other corridor will follow the balcony. Evacuation to the city is possible. If both sections of the corridor cannot be evacuated, providing an evacuation hatch to the lower floor on the balcony enables evacuation to the upper and lower floors using the evacuation hatch provided on the balcony. is there.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional plan view of a high-rise apartment building according to the present invention. In the figure, the same components as those of the conventional example shown in FIG. 1 are denoted by the same reference numerals.

The high-rise apartment building of the present invention is also of a doughnut-shaped center core type as in the conventional example shown in FIG. 1, and a plurality of rooms 3 are arranged in a ring shape at the outer peripheral portion of the building, and are arranged in a ring shape. An all-around balcony 4 is provided outside the room 3, two special evacuation stairs 6 are provided in the center, and a general passenger elevator 8 which is normally used at a position facing the special evacuation stairs 6, and a fire evacuation stall. An emergency elevator 9 was installed.

According to the present invention, a corridor 2 is arranged around the center core 1 and an annex 7 of a special evacuation stair 6 is provided at an end of the corridor 2.
a and 7b are arranged to form a closed evacuation route, but the annex 8 of the elevator 8 and the emergency elevator 9 for firefighting activities is cut along the corridor 2 in such a way that the corridor 2 is cut off. The corridor 2 is located in the annex room 10
Is divided into two evacuation corridors 2a and 2b.

The evacuation corridor 2a of one of the sections located on the side of, for example, the room 3b, which is a disaster occurrence area, is set as a primary safety section, and is connected to the auxiliary room 10 of the emergency elevator 9 and the evacuation corridor 2a serving as the primary safety section. The auxiliary room 7a of the special evacuation stairs 6 is a secondary safety section, the evacuation corridor 2b of the other section is a tertiary safety section, and the auxiliary room 7b of the special evacuation stairs 6 following the evacuation corridor 2b, which is the tertiary safety section, is quaternary. It shall be a safety section.

A fire door 12 is installed at the boundary of each safety section, and a natural air supply passage 13 and a mechanical smoke exhaust system 14 are provided in the special evacuation stairs 6 and the emergency rooms 9 of the emergency elevator 9 respectively. And smoke evacuation facilities are also provided in the evacuation corridors 2a and 2b.
14 is installed.

The section between the ancillary room 10 of the emergency elevator 9 and the general passenger elevator 8 is divided by a smoke-linked self-closing fire door.

As described above, for example, when the room 3b facing the evacuation corridor 2a is assumed as the assumed fire source, the residents of the room 3a are located in the primary safety section with respect to the evacuation routes of the rooms 3a and 3c adjacent to the room 3b. Immediately from a certain evacuation corridor 2a, shelters to the secondary security compartment annex 7a, and the residents of the room 3b can immediately evacuate to the secondary security compartment annex 10 from the primary security compartment evacuation corridor 2a, Both residents in rooms 3a and 3c can immediately evacuate to the secondary security zone.

The residents who have evacuated to the secondary security section, the auxiliary room 7a, immediately evacuate to the special evacuation stairs 6, and the residents who have evacuated to the secondary room have the tertiary security section, the evacuation corridor 2b. Through the escort room 7b, which is the fourth safety section, and evacuate to the special evacuation stairs 6 from here.

In this case, even if smoke escapes from the room 3b, which is the assumed fire source, to the evacuation corridor 2a, since the corridor 2 is partitioned by the annex room 10, the smoke does not flow to the evacuation corridor 2b. In addition, residents who have evacuated to the annex room 10 can slowly and evacuate from the evacuation corridor 2b, which is the tertiary security section, to the annex room 7b, which is the quaternary security section, with a margin.

The room 3d on the side facing the evacuation corridor 2b,
Inhabitants 3e, 3f, and 3g can also slowly evacuate from the evacuation corridor 2b, which is a tertiary safety section that is not contaminated with smoke, to the auxiliary room 7b, which is a quaternary safety section, with a margin.

By partitioning the corridor 2 in the annex room 10 in this way, one of the evacuation corridors 2b is prevented from being contaminated with smoke. Simultaneous activation prevents smoke from filling the evacuation route.

In addition, according to the evacuation calculation based on the fire prevention plan guidelines, etc., the number of evacuees is small in the use of multi-family dwellings, because the ancillary room 10 of the emergency elevator 9 which is a firefighting activity space is used as an evacuation route. Within 1 minute after the fire occurs, the evacuation of residents via the annex 10 is completed, while the arrival of the fire brigade to the fire floor must be at least 4 to 5 minutes after the fire occurs Therefore, there is a low possibility that evacuation and firefighting activities are mixed, and even if the annex room 10 is used as an evacuation route, there is no risk of hindering firefighting activities.

However, regarding the opening / closing direction of the fire door 12, priority is given to evacuation to the auxiliary room 10, and a hose hole is provided.
Plan for fire fighting activities.

If one of the evacuation corridors 2a and 2b cannot be used as an evacuation route because of smoke or the like, the other evacuation corridors 2a, 2a are passed from the other room along the all-around balcony 4. It is only necessary to evacuate to 2b.

If any of the evacuation corridors 2a and 2b cannot be used as an evacuation route due to smoke or the like,
Evacuation to the lower floor is possible through the evacuation hatch provided on the all-around balcony 4.

[0030]

As described above, in the high-rise apartment building of the present invention, the corridor is divided into two by an emergency elevator vestibule, one of which is a primary safety compartment, and the emergency elevator vestibule following. And the secondary evacuation room for the special evacuation stairs,
The evacuation from the primary security section to the secondary security section is possible in a short time, about half the length of the corridor. The secondary security section can be safely and evacuated from the secondary security section to the tertiary security section, which is the corridor of the other section, and to the quaternary security section, which is a room adjacent to the special evacuation stairs.

Also, since the corridor is cut off by the emergency elevator annex and divided into two sections, not only can the entire evacuation corridor of the primary safety section be prevented from being contaminated with smoke,
By incorporating the emergency elevator vestibule, which is extremely safe for disaster prevention, in the evacuation route, it is possible to reach the secondary safety section in a short distance especially in a center-core type building, thereby improving safety.

Compared with the conventional case where a corridor is rounded, for example, a room for an emergency elevator and a part of a rounded evacuation corridor which is fire-blocked can be effectively used as a building, The property benefits of the building also arise.

Further, by arranging a natural air supply passage and a mechanical smoke exhaust system in each annex of the special evacuation stairs and the emergency elevator, the function as a secondary safety section can be ensured.

If a balcony is provided on the entire periphery of the building and it is impossible to evacuate from the corridor facing the room, it is possible to evacuate to the other corridor along the balcony. If both sections of the corridor cannot be evacuated, an evacuation hatch to the lower floor is provided on the balcony so that evacuation of the lower floor is possible using the evacuation hatch.

[Brief description of the drawings]

FIG. 1 is a cross-sectional plan view showing an embodiment of a high-rise apartment building of the present invention.

FIG. 2 is a cross-sectional plan view of a conventional high-rise apartment house.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Center core part 2 ... Corridor 2a, 2b ... Evacuation corridor 3, 3a, 3b, 3c, 3d, 3e, 3f, 3g ... Room 4 ... Balcony 5 ... Entrance 6 ... Special evacuation stairs 7a, 7b ... Annex room 8 ... General passenger elevator 9… Emergency elevator 10… Attached room 11… Pipe space 12… Fire door 13… Natural air supply passage 14… Mechanical smoke exhaust system

Claims (3)

[Claims] 1. A corridor is arranged around a core portion in the center of a building, special evacuation stairs are provided at both ends of the corridor via vestibules, and an emergency elevator is arranged at a position facing the special evacuation stairs. In a doughnut-shaped center-core high-rise apartment building that forms a closed evacuation route, the corridor is divided into two sections by an emergency elevator annex, and the corridor of one section located in the disaster occurrence area is primary safety The secondary security section is a secondary security section, and the secondary security section is a secondary security section, and the secondary security section is the tertiary security section. A high-rise apartment building characterized by a special safety staircase attached to the special evacuation staircase following the corridor. 2. The high-rise apartment building according to claim 1, wherein a natural air supply duct and a mechanical smoke exhaust system are provided in each annex of the special evacuation stairs and the emergency elevator. 3. An all-around balcony is provided on the outer peripheral surface of the building,
The high-rise apartment building according to claim 1 or 2, wherein an evacuation hatch to a lower floor is provided on the balcony.