JPH06319825A - Building having spreading fire burn preventing equipment - Google Patents

Abstract

PURPOSE:To surely prevent a fire broken out from a dwelling house of the lower layer from spreading to the dwelling house of the upper layer through a veranda. CONSTITUTION:In the upper part of a hadrail 27, a water discharge pipe 4 provided with plural injection nozzles 41 for forming a water curtain along this handrail is subjected to piping, this water discharge pipe is connected to a water feed pipe 6 through a stop valve, and the injection nozzles are arranged at an interval in the lengthwise direction of the water discharge pipe 4.

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 burning prevention facility capable of preventing fire burning on the upper floor.

[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, each dwelling unit of a detached house that is a secondary structure has its base fixed to the floor slab of the primary structure and its roof fixed to the ceiling floor slab by anchors or the like. In the above-mentioned artificial land type house, a veranda or an eave is provided on each layer of the secondary structure to prevent burning of the upper detached house when a fire occurs in the lower detached house. Even in a normal multi-story apartment that is not an artificial land type house, the veranda and eaves function as fire protection.

[0003]

According to a fire test of an artificial land type house, a secondary structure of the lower layer (house)
It was found that there was a problem in that the flame of No. 2 circulated inside the upper veranda and was likely to cause secondary structure burning. Further, even in a conventional house in which the primary structure and the secondary structure are not distinguished from each other, the veranda and the eaves have not been sufficiently functioning as a fire-prevention means in case of a fire in a strong wind.

An object of the present invention is to reliably prevent a fire generated from a lower-layer house from burning to the upper-layer house through a veranda.

[0005]

The building according to the present invention is
Piping a water discharge pipe equipped with a plurality of injection nozzles to form a water curtain along the handrail on the upper part of the handrail, this water discharge pipe is connected to the water supply pipe through an on-off valve,
In the building in which the injection nozzles are arranged at intervals in the length direction of the water discharge pipe, in addition to the building provided with a secondary structure facing the primary structure, a primary structure and a secondary structure It includes buildings that cannot be divided into

[0006]

[Operation] The water discharged from each injection nozzle of the water discharge pipe forms a water curtain to prevent burning of the upper layer.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 3 and FIG. 4, the artificial land type house 1 is a multi-story building having a primary structure 2 and a dwelling unit 3 which is a secondary structure, and a two-story detached house type is adopted between each layer. The dwelling unit 3 is being constructed. The primary structure 2 is a pillar 2
The building is composed of 1, a wall 22, a beam 23, and a floor 24. The column 21 and the beam 23, which is a reverse beam, are made of cast-in-place concrete.

Balconies 25, 26 are provided on both sides of the house 1, and wall-shaped handrails 27, 28 are provided on each balcony. As shown in FIG. 1, the handrail 27 on one side of the house 1 (on the left side in FIG. 4) is provided with a water discharge pipe 4 along its upper part, which constitutes a part of a water discharge device which is a fire protection facility. The water discharge pipe 4 has injection nozzles 41 arranged at intervals in the length direction. The jetting direction of the jetting nozzle 41 is set right above. Water discharge pipe 4 is for each dwelling unit 3
Are provided independently of each other. Each water discharge pipe 4 is connected to a water supply pipe 6 via an on-off valve 5 (FIG. 2), and water is supplied from the water supply pipe to each water discharge pipe by the operation of this on-off valve. When the on-off valve 5 is opened, water is sprayed from the injection nozzle 41 and a water curtain is formed right above the handrail 27, so that the upper layer can be protected from sparks and radiant heat flying from the lower layer.

The operation of the opening / closing valve 5 is automatically performed by the solenoid valve 7 as shown in FIG. 2 and also manually by the manual starter 8, and automatic opening / closing or manual opening / closing can be selected. Further, the operations of the solenoid valve 7 and the manual starting device 8 are controlled by the central management room provided in the house 1. In the central control room, the on-off valve 5 is controlled through the solenoid valve 7 or the manual starter 8 according to the operation display of the fire detectors installed in each layer.

3 and 4, 31 is a living room and 32 is a living room.
Is a kitchen, 33 is an entrance, 34 is a bathroom, and 35 is a washroom.

The operation procedure is performed according to the procedure shown in FIG.
When a fire occurs in the dwelling unit 3 of a certain layer, the fire detector of this dwelling unit is activated, and the operation display is displayed in the central control room. Therefore, the observer corresponds to the layer above the layer where the fire occurred. The opening / closing valve 5 is opened via the solenoid valve 7. As a result, water is jetted from the jet nozzle 41 of the water discharge pipe 4 in the upper layer to form a water curtain to prevent burning of the upper layer. Further, if necessary, the opening / closing valve 5 is manually opened by the manual starter 8.

FIG. 6 shows a second embodiment. This example is distinguished from the above example in that the handrail 9 of the handrail 27a also serves as a water discharge pipe. The handrail 9 is provided with an injection nozzle 91 that opens toward the balcony 25a on the inner side in the length direction. The handrail 8 has a balcony 25a
Is connected to a water supply pipe 6a that is piped outside. Other configurations are similar to the above example. When a fire occurs, water is jetted from the jet nozzle 91 of the handrail 9 to form a water curtain of a plurality of stages above the balcony 25a to prevent burning of the upper layer.

[0013]

According to the present invention, when a fire occurs in the lower layer, water is sprayed from the injection nozzle of the water discharge pipe provided on the upper handrail to form a water curtain, so that the burning of the upper layer can be reliably prevented.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of an embodiment of the present invention.

FIG. 2 is a front view showing a relationship among a water discharge pipe, an opening / closing valve, a solenoid valve, and a manual starting device.

FIG. 3 is a cross-sectional view of a one-layer portion showing an embodiment of the present invention.

FIG. 4 is a vertical sectional view showing an embodiment of the present invention.

FIG. 5 is a flow chart of waterproofing work.

FIG. 6 is a perspective view showing a main part of another embodiment of the present invention.

[Explanation of symbols]

 1 House 2 Primary structure 3 Secondary structure (dwelling unit) 4 Water discharge pipe 5 Open / close valve 6 Water supply pipe 6a Water supply pipe 25 Balcony 25a Balcony 27 Handrail 27a Handrail 41 Injection nozzle

 ─────────────────────────────────────────────────── ─── Continuation of the 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 Corporation Technical Research Institute (72) Inventor Akio Kodaira 2-5-14 Minamisuna, Koto-ku, Tokyo Incorporated Takenaka Industrial Engineering Research Institute (72) Inventor Kenzo Harada Central Tokyo 8-21-1, Ginza, Ginza, Ltd. Takenaka Corporation, Tokyo Main Store (72) Inventor, Minoru Ishibashi 8-21-1, Ginza, Chuo-ku, Tokyo Takenaka Corporation, Tokyo Main Store (72) Inventor Takeuchi Ryosuke 8-21-1, Ginza, Chuo-ku, Tokyo Stock company Takenaka Corporation Tokyo main store (72) Inventor Rui Ishihara 2-32-1, Shiba, Minato-ku, Tokyo Haseko Corporation (72) Inventor, Yakuryu Imanishi, 32-32-1, Shiba, Minato-ku, Tokyo Nagatani Corporation (72) Inventor, Hirofumi Aoyama 2-32-1, Shiba, Minato-ku, Tokyo Tani Corporation (72) Inventor Shunichi Hamano 2-32-1, Shiba, Minato-ku, Tokyo Naga Tani Corporation (72) Inventor Tomoyuki Mizuno 2-32-1, Shiba, Minato-ku, Tokyo Chief Inside Tani Corporation

Claims (1)

[Claims] 1. A water discharge pipe having a plurality of injection nozzles for forming a water curtain along the handrail is provided on the upper part of the handrail, and the water discharge pipe is connected to a water supply pipe through an on-off valve. The building having fireproof equipment, wherein the injection nozzles are arranged at intervals in the length direction of the water discharge pipe.