JP3481969B2 - Building with fire spread prevention device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building having a fire spread prevention device for preventing fire spread to adjacent dwelling units.

[0002]

2. Description of the Related Art Conventionally, there has been proposed an artificial land-type house in which a detached house, which is a secondary structure, is constructed on the floor of each layer in a multi-layered primary structure including, for example, columns, beams, walls and floors. In this type of house, for example, concrete columns developed for large-scale use are used for columns, steel-framed concrete beams are used for beams, and precast concrete plates are used for floors and walls. Each unit of a detached house is
The foundation is fixed to the floor slab of the primary structure, and the roof is fixed to the ceiling floor slab by anchors or the like.

[0003]

According to an experiment in a conventional artificial land type house, according to an experiment, as a measure for preventing the spread of fire from the outer wall opening of the detached house which is the secondary structure to the adjacent house, the adjacent house The windows of 90cm apart or more,
It was also found that even if non-combustible partitioning, which is a fireproof partition wall, is provided on the doorstep, there is a risk that flames will flow along the lower surface of the veranda to the adjacent doors and spread fire especially when the wind is strong.

An object of the present invention is to provide a building capable of preventing a flame from flowing to an adjacent dwelling unit and spread by a simple structure.

[0005]

According to the present invention, a drip made of an incombustible material is formed from a lower surface of a veranda at a boundary position with an adjacent dwelling unit in a house provided with a normal multi-story building or a secondary structure facing a primary structure. The wall is provided downward. Buildings include normal buildings that are not divided into primary structures and secondary structures, in addition to buildings that have secondary structures facing the primary structure.In the former building, the hanging wall is the primary It will be installed on the balcony of the structure.

[0006]

[Operation] The hanging wall blocks the flow of flame along the lower surface of the balcony.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. The house 1 shown in FIGS. 1 and 3 includes a secondary structure 3 facing the primary structure 2. The primary structure 2 is a pillar 2
It is a multi-story building consisting of 1, walls 22, beams 23 and floors 24. The columns 21 and the beams 23 made of reverse beams are made of cast-in-place concrete, and the walls 22 and the floor 24 are made of precast plates.

The secondary structure 3 adopts a two-story detached house type. In the secondary structure 3, as shown in FIGS. 1 and 2, a veranda 31 is provided on the outer side, and a Conquenrete handrail 32 is provided at the end of the veranda. The balcony 31 is provided with a part tension 4, which is a fireproof partition wall, at a boundary position with an adjacent dwelling unit. Directly above each part tension 32, a hanging wall 5 made of an incombustible material is provided from the lower surface of the upper veranda 31.

In FIG. 3, the gap 6 between the wall 22 of the primary structure 2 and the outer wall of the secondary structure 3 is a noncombustible material over the entire length at the boundary between the upper and lower floors of the secondary structure 3. It is filled with glass wool 7. That is, the glass wool 7 closes the gap 6 so as to surround the periphery of the ceiling portion 33 at the boundary between the upper and lower floors of the secondary structure 3, and therefore the smoke produced from the lower floor passes through the gap 6 to the upper floor. It has the function of preventing the transmission to. With the above configuration, when the flames ejected from the openings 34, 35 of a dwelling unit try to flow toward the dwelling unit adjacent to the lower surface of the veranda 31, the hanging wall 5 blocks the flow and the adjacent dwelling unit is closed. The spread of fire can be prevented.

FIGS. 4 and 5 show an apartment house 11 showing a second embodiment, which is different from the first embodiment in that the apartment house does not have a primary structure and a secondary structure. To be done.
In the housing complex 11, a hanging wall 15 is provided on the lower surface of the veranda 11a from the boundary position between adjacent dwelling units, and a partition 14 stands upright therebelow, and the upper end of this partition is close to the lower surface of the hanging wall. is doing. 1
1b is an opening. Also in this example, the hanging wall 15 can exert the function of blocking the flow of flame from the adjacent door.

[0011]

According to the present invention, since the hanging wall for blocking the flame flowing to the adjacent dwelling unit along the lower surface of the veranda is provided, the fire spread to the adjacent dwelling unit due to the flame can be ensured with a simple structure. Can be prevented.

[Brief description of drawings]

FIG. 1 is an enlarged vertical sectional view of a main part showing an embodiment of the present invention.

FIG. 2 is a front view of a main part showing an embodiment of the present invention.

FIG. 3 is a plan sectional view of an essential part showing an embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view of a main part showing another embodiment of the present invention.

FIG. 5 is a front view of the main part of the other embodiment of the present invention with the handrail omitted.

[Explanation of symbols]

1 house 2 Primary structure 3 Secondary structure 31 balcony 4 Fireproof partition wall (part tension) 5 hanging wall 11 housing 11a balcony 14 Fire compartment wall (part tension) 15 hanging wall

─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Koji Yifune 10-10 Hashimotocho, Naka-ku, Hiroshima City, Hiroshima Prefecture Takenaka Corporation, Hiroshima Branch (72) Inventor Yasushi Nakayama 2-5, Minamisuna, Koto-ku, Tokyo No. 14 Incorporated Takenaka Corp. Technical Research Institute (72) Inventor Akio Kodaira 2-5-14 Minamisuna, Koto-ku, Tokyo Incorporated Takenaka Corp. Technical Institute (72) Inventor Kanzo Harada 8 Ginza, Chuo-ku, Tokyo Chome 21-1 Takenaka Corporation Tokyo Main Store (72) Inventor Ishibashi ridge 8-21-1, Ginza, Chuo-ku, Tokyo Takenaka Corporation Tokyo Main Store (72) Inventor Ryosuke Takeuchi Chuo-ku, Tokyo Ginza 8-21-1, Takenaka Corporation Tokyo Main Store (72) Inventor Rui Ishihara 2-32-1, Shiba, Minato-ku, Tokyo Haseko Corporation In (72) Inventor Kokuryu 2-32-1, Shiba 2-3-1, Shiba, Minato-ku, Tokyo Haseko Corporation Co., Ltd. (72) Inventor Hirofumi Aoyama 2-32-1, Shiba, Minato-ku, Tokyo Haseko Corporation (72) Inventor Shunichi Hamano 2-32-1, Shiba, Minato-ku, Tokyo Haseko Corporation (72) Inventor Tomoyuki Mizuno 2-32-1, Shiba, Minato-ku, Tokyo Haseko Corporation ( 56) References JP-A-2-308058 (JP, A) Actual development Sho 61-187809 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A62C 2/06 509 E04B 1 / 00 E04H 1/04 E04H 9/14

Claims (2)

(57) [Claims] 1. A building having a fire spread prevention device, characterized in that a hanging wall made of an incombustible material is hung from a lower surface of a veranda at a boundary position between adjacent dwelling units. 2. A house having a secondary structure facing the primary structure, wherein a dangling wall made of a noncombustible material is hung from a lower surface of a veranda of the primary structure at a boundary position between adjacent dwelling units. A building with a fire spread prevention device characterized by being installed.