JPH0739602A - Concrete wall and its installation method - Google Patents

Abstract

PURPOSE:To provide the concrete wall which has a fire extinguishing function like that of a sprinkler and does not impair dwelling quality and its installation method. CONSTITUTION:This concrete wall is embedded with water distributing pipes 12 and many discharge pipes 11 for fire extinguishing which communicate with these water distributing pipes 12 and open to the wall surface. This method is for installation of such concrete wall. Pipe materials 17 are tightly fitted movably in and out into the opening end faces of these discharge pipes 11 prior to placing of concrete. The opening end faces of the pipe materials 17 are closed with surfaces 18 of forms by adjusting the moving in and out quantity of the respective pipe materials 17, by which the clogging of the discharge pipes 11 with the concrete is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete wall and its construction method.

[0002]

2. Description of the Related Art As a fire extinguisher installed in a large-scale building, a sprinkler device is generally known in which a large number of sprinkler heads are arranged on the ceiling surface of the building and water is ejected from the heads to extinguish the fire when a fire occurs. ing.

[0003]

However, when the sprinkler device is installed, a large number of sprinkler heads hang down from the ceiling, so that the floor height is higher than that of a high-rise residential building such as hotels, museums, and department stores. The ceiling of a building that is lower than that of the building is felt lower, and the habitability of the room is greatly impaired. The present invention has been made in view of the above problems, and an object of the present invention is to provide a concrete wall that has a digestive function like a sprinkler device and does not impair habitability, and a construction method thereof.

[0004]

The invention according to claim 1 is characterized in that a water distribution pipe and a large number of fire extinguishing water discharge pipes that are open to the wall surface are buried in a concrete wall. The invention according to claim 2 is a method for constructing a concrete wall in which a large number of fire extinguishing water discharge pipes that are in communication with the water distribution pipe and open to the wall surface are buried, and prior to placing concrete, the water discharge pipe It is characterized in that the pipe material is tightly fitted to the opening end face so as to be able to advance and retreat, and the opening end face of the pipe material is closed by the mold surface by adjusting the amount of advance and retreat of each pipe material. According to a third aspect of the present invention, in the method for constructing a concrete wall according to the second aspect, a pipe material made of rubber or soft synthetic resin is used as the pipe material.

[0005]

According to the invention described in claim 1,
Since the fire extinguishing water discharge pipe was embedded in the concrete wall so as to open on the wall surface, it is possible to extinguish the fire by simultaneously discharging water from the water discharge pipe when a fire occurs. Since the fire extinguisher pipe is buried in the wall and is not exposed to the outside, there is no fear that the aesthetics of the wall and the habitability of the room will be impaired. According to the invention described in claim 2, since the opening end face of the pipe material closely fitted to the opening end face of the fire extinguishing water discharge pipe is closed by the formwork surface before the concrete is placed, the concrete is put into the water discharge pipe at the time of placement. It can prevent intrusion and blockage. Since the pipe material is closely fitted to the fire extinguishing water discharge pipe so that it can advance and retreat, press the formwork against the pipe material protruding from the fire extinguishing water discharge pipe and push the pipe material into the fire extinguishing water discharge pipe. The open end faces of a large number of pipe members can be uniformly and surely closed with the mold surface.
Therefore, the work of installing the formwork is facilitated and the work can be performed at low cost. According to the invention described in claim 3, since rubber or soft synthetic resin is used for the pipe material, even if the surface of the mold is slightly curved or has irregularities, the pipe material is pressed when the mold is pressed. Is elastically deformed, and the opening end face thereof comes into close contact with the surface of the mold, and is reliably closed.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the drawings. FIG. 1 shows a room having a ceiling constructed by a concrete wall 10 according to an embodiment of the present invention. Further, FIG. 2 shows a detailed structure of the concrete wall 10. A large number of fire extinguishing water discharge pipes 11 and fire extinguishing water distribution pipes 12 are embedded in the concrete wall 10 of the ceiling shown in FIG. 1, and the water discharge pipes 11 are connected to the water distribution pipe 12. The fire extinguishing water discharge pipe 11 is open on the surface of the concrete wall 10 of the ceiling, but if many openings are exposed on the ceiling, the aesthetics of the room will be impaired. Apply a thin mortar to cover the opening. As the water distribution pipe 12, a hard synthetic resin pipe used for water pipes is used. A copper pipe is used as the water discharge pipe 11, and the water discharge pipe 11 is water-tightly fitted into a small hole formed in the water distribution pipe 12 via a sealing material. The fire-extinguishing water pipe 12 is connected to an elevated tank (not shown) via a fire-extinguishing water pipe 14 which is piped in the ceiling, and the fire-extinguishing pump is attached to the elevated tank. Further, an electromagnetic valve 15 is arranged at the connecting portion between the water distribution pipe 12 and the water supply pipe 14. The solenoid valve 15 and a fire extinguishing pump (not shown) operate in conjunction with a fire detector 16 arranged on the ceiling, and when the detector 16 detects a fire, the solenoid valve 15
With the opening of the fire extinguishing system, the fire extinguishing pump is actuated, whereby water pressurized to a high pressure breaks the wallpaper 13 or the mortar from the ceiling water discharge pipe 11 and is jetted all at once to extinguish the fire quickly.

Next, a method of constructing the concrete wall 10 for constructing the above ceiling will be described with reference to FIGS. 3 and 4. Prior to placing the concrete, a vinyl pipe 17 is fitted into each water discharge pipe 11 so as to be able to move forward and backward, and the water discharge pipe 1
A vinyl pipe 17 having an appropriate size is projected from the opening end face of No. 1. Then, a formwork 1 for forming the surface of the concrete wall on the pipe material 17 protruding from the fire extinguishing water discharge pipe 11.
8 and press the mold 18 to the position shown by the chain double-dashed line in FIG.
Then, the pipe material 17 is pushed into the fire extinguishing water discharge pipe 11. As a result, the open end faces of the large number of pipe members 17 are uniformly and surely closed by the surface of the mold frame 18, so that concrete is poured as shown in FIG. When the formwork 18 is removed after the concrete has hardened, the end face of the pipe material 17 opens on the surface of the concrete wall 10, so the pipe material 17 is taken out and the wallpaper 13 is attached to the surface of the concrete 10 or thin mortar is applied. To hide the opening. Through such a series of steps, the concrete wall 10 as shown in FIG. 2 is constructed.

According to this embodiment, however, since the fire extinguishing water discharge pipe 11 is embedded in the concrete wall 10 and hidden by the wallpaper 13 and the mortar so as not to be exposed to the outside, the aesthetic appearance of the wall is not impaired. Therefore, if the room is constructed by the concrete wall 10 having such a structure, the fire extinguishing function like a sprinkler can be achieved without impairing the habitability of the room. In addition, in this embodiment, before the concrete is poured, the open end face of the pipe material 17 tightly fitted to the open end face of the fire extinguishing water discharge pipe 11 is closed by the surface of the form 18, so that the concrete is released during the pouring. The pipe material 17 is tightly fitted to the fire extinguishing water discharge pipe 11 so as to be able to advance and retract, so that the pipe material 17 protruding from the fire extinguishing water discharge pipe 11 is prevented. When the pipe material 17 is pushed into the fire extinguishing water discharge pipe 11 by pressing the mold frame 18 onto the fire extinguishing pipe 11, it is possible to uniformly and surely close the open end faces of the many pipe members 17 with the mold frame surface. Therefore, the work of installing the form 18 is facilitated, and the work can be performed at low cost. further,
Since a vinyl pipe is used as the pipe material 17, even if the surface of the formwork 18 is slightly curved or has irregularities, when the formwork 18 is pressed, the pipe material 17 is elastically deformed and its opening is increased. The end face is in close contact with the surface of the mold 18 and can be surely closed. Although the ceiling of the room is constructed by the concrete wall 10 in this embodiment, the fire extinguishing function can be further enhanced by constructing the side wall in addition to the ceiling.

[Brief description of drawings]

FIG. 1 is a schematic view showing a room having a ceiling constructed of concrete walls according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of the concrete wall.

FIG. 3 is an explanatory diagram showing a method of constructing the concrete wall.

FIG. 4 is an explanatory view showing a construction method of the concrete wall.

[Explanation of symbols]

10 ... Concrete wall, 11 ... Water discharge pipe, 12 ... Water distribution pipe,
13 ... Wallpaper, 14 ... Water pipe, 15 ... Solenoid valve, 16 ... Fire detector, 17 ... Vinyl pipe material, 18 ... Formwork.

Claims (3)

[Claims] 1. A concrete wall comprising a water distribution pipe and a large number of fire extinguishing water discharge pipes which are connected to the water distribution pipe and open to the wall surface. 2. A method of constructing a concrete wall in which a water pipe and a large number of fire extinguishing water discharge pipes that are open to the wall and communicate with the water distribution pipe are buried, and the opening end face of the water discharge pipe is placed on the opening end face of the water discharge pipe prior to placing concrete. A method for constructing a concrete wall, characterized in that a pipe material is tightly fitted in such a manner that the pipe material can advance and retreat, and an opening end face of the pipe material is closed by a formwork surface by adjusting an amount of advance and retreat of each pipe material. 3. The method for constructing a concrete wall according to claim 2, wherein a pipe material made of rubber or soft synthetic resin is used.