JP2754994B2 - How to build a thermal insulation roof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a heat insulating film roof having a double film structure comprising an inner film and an outer film, and a heat insulating material interposed between the inner film and the outer film.

[0002]

2. Description of the Related Art In recent years, there has appeared a structure in which a roof of a large space facility or the like having a pillarless structure such as a dome is constructed as a membrane roof. In this membrane roof structure, an upper end portion of an outer wall surrounding a large space facility is covered with a roof membrane formed of a waterproof flexible membrane. The roof membrane is inflated (expanded) by injecting air into the inside of the facility, and a dome-shaped roof having a central portion swelled in the inflated state is formed. In order to prevent the roof membrane from being fluttered by the influence of wind or the like, the roof membrane is usually supported by a cable installed between opposed outer walls.

[0003]

However, in such a conventional membrane roof structure, since the entire large space facility must be continuously covered with the roof membrane, the roof membrane has an extremely large area. It will be. For this reason, when the roof membrane is manufactured in a factory at the time of construction of the large space facility, and the roof membrane is to be carried to the site, even when the roof membrane is folded, it becomes extremely bulky, and the transportation becomes difficult. In particular, when a heat insulating material is attached to the roof film to form a heat insulating film roof, there is a problem in that the roof film becomes further bulky, and transport thereof becomes extremely difficult.

In view of the above-mentioned problems, the present invention provides a method for constructing a heat-insulating membrane roof capable of facilitating the transportation of the roof membrane by assembling and attaching each component constituting the roof membrane on site. The purpose is to provide.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an inflatable and deflateable stretch between opposing outer walls of a large space facility, and a double membrane comprising an inner membrane and an outer membrane. In a method of constructing a heat insulating membrane roof in which a heat insulating material is interposed between the inner membrane and the outer membrane, the inner membrane is laid on the floor of a large space facility, and then the outer membrane is formed outside the inner membrane. A construction method in which a heat insulating material is fixed to the side surface, and then an outer membrane is laid on the outer surface of the heat insulating material to inflate the same.

[0006] In this construction method, the inner membrane and the outer membrane are constituted by an aggregate of a plurality of membrane pieces, and a connecting end of each of the inner membrane and the outer membrane has a heat insulating material removed. The joint is covered with a joint membrane extending from the outer membrane or the inner membrane, and the membrane roof is inflated. Then, the inside covered with the joint membrane is filled with a heat insulating material. It is desirable.

[0007]

According to the method for constructing a heat insulating film roof of the present invention having the above-mentioned structure, the inner film of the inner film and the outer film of the double film structure with the heat insulating material interposed is used for the large space facility. Lay it on the floor, then fix the insulation on the outer surface of this intima,
Next, since the outer membrane is laid on the outer surface of the heat insulating material to be inflated, each component constituting the heat insulating membrane roof can be easily assembled on the floor of a large space facility on site. Accordingly, since the heat insulating film roof can be individually carried into the site without completing the assembly at the factory, the inner film, the outer film, and the heat insulating material can be easily transported.

Further, in this construction method, since the inner membrane and the outer membrane are constituted by an aggregate of a plurality of membrane pieces, each membrane piece can be independently carried to the site, so that transportation is further facilitated. become. The connection end of each of the membrane pieces of the inner membrane and the outer membrane is connected to each other without the heat insulating material, and this connection portion is covered with a joint membrane extending from the outer membrane or the inner membrane, and the membrane roof is formed. After inflation, the inside covered with this joint membrane was filled with heat insulating material, so at the time of inflation of the membrane roof, the connection part of each membrane piece is freely bent because there is no heat insulating material. Will be. Therefore, since the rigidity of the entire membrane roof can be reduced, the air pressure in the facility for inflating the membrane roof can be set low. In addition, since a heat insulating material is filled in the joint film after the connection portion of each of the membrane pieces is inflated, it is possible to prevent the outside air temperature from largely affecting the connection portion.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 4 show an embodiment of a method for constructing a heat insulating membrane roof according to the present invention. FIG. 1 is a schematic configuration diagram showing a cross section of a large space facility to which the present invention is applied.
(B), (C), and (D) are step-by-step process drawings showing the construction of a heat insulating film roof, FIG. 3 is a perspective view of an inner film showing a fixed state of a heat insulating material, and FIG. It is an expanded sectional view corresponding to A line.

That is, the large space facility shown in FIG. 1 is used as an indoor artificial skiing area 10, and outer walls 12, 12 which are continuous on both sides in the front and back directions in the drawing are constructed, and upper ends of these outer walls 12, 12 are constructed. A membrane roof 14 is stretched between the sections. The floor surface 18 of the large space portion 16 composed of the outer walls 12 and 12 and the roof membrane 14 is continuously inclined in the direction in which the outer walls 12 and 12 extend (perpendicularly to the plane of the drawing). The artificial slope is formed by putting artificial snow on the floor 18,
You can glide on the snow.

The membrane roof 14 includes an inner membrane 14a and an outer membrane 14a.
b and the inner membrane 1
A heat insulating material 20 is interposed between 4a and 14b. A cable 22 (see FIG. 4) is provided between the outer walls 12 and 12 facing each other, and the cable 22 supports the membrane roof 14. In the solid line state in FIG.
6 shows a state where air is injected into the inside of the membrane roof 6 and the membrane roof 14 is inflated, and a two-dot chain line state shows a state where the inside air pressure is eliminated and deflated (contracted). Further, a machine room 24 and a lift room 26 are provided outside the outer walls 12, 12, and the machine room 24 includes an air conditioner,
An artificial snow machine, a snow gun, etc. will be installed.

The inner membrane 14a and the outer membrane 14b constituting the membrane roof 14 as a double membrane structure are each formed of a flexible membrane. In particular, the outer membrane 14b is formed of a water-resistant flexible membrane. The membrane roof 14 is stretched between the outer walls 12, 12 in the steps shown in FIGS.

2 (A) to 2 (D) are shown as schematic cross sections corresponding to FIG. 1, respectively.
As shown in FIG. 1A, an inner membrane 14a is laid on the floor 18 of the indoor artificial ski resort 10 to be constructed.
a are attached to the inside of the outer walls 12,12. still,
At this time, a processing table 28 having a triangular cross section is disposed at a corner between the outer walls 12, 12 and the floor surface 18, and the inner film 14a is placed on the inclined surface 28a of the processing table 28.

Next, as shown in FIG.
An adhesive is applied to the outer surface (the inner and outer directions are determined by directions with respect to the floor surface 18; the same applies hereinafter) of the inner membrane 14a laid on the heat insulating material 2 via the adhesive.
0 is fixed over the entire surface of the inner film 14a.

Next, as shown in FIG. 2C, the outer film 1 is attached to the outer surface of the heat insulating material 20 fixed to the inner film 14a in the above step.
4b is laid, and both ends of the outer membrane 14b are
Attach to upper end of 2,12. Therefore, at this stage, the heat insulating film roof 14 having a double film structure with the heat insulating material 20 interposed between the inner film 14a and the outer film 14b is formed.

Then, as shown in FIG. 2D, air is injected from a blower (not shown) into the large space 16 between the heat-insulating membrane roof 14 and the floor surface 18 and pressurized. This heat insulating film roof 14 is blown. At this stage of the inflation, the processing table 28 is removed from the facility.

As shown in FIG. 3, a large number of heat insulating materials 20 previously formed in a rectangular shape are laid, and a sealing tape 30 is attached to each joint. The heat insulating material 20
Has flexibility. The inner membrane 14a and the outer membrane 1
As shown in FIG. 4, 4 b is constituted by an aggregate of a plurality of film pieces 32 and 34, and each of the film pieces 32 and 34 is connected to each other via a connection fitting 36.

The connection fitting 36 includes an inner holding plate 36a and an outer holding plate 36b.
The connecting ends of the film pieces 32 and 34 are overlapped with each other and sandwiched between b. As shown in FIG. 3, a core member 38 such as a string is wound around each of the ends of the connection ends of the membrane pieces 32 and 34, and the wound portion serves as a locking portion to serve as a locking portion.
34 is prevented from being removed from the connection fitting 36. The above-described cable 22 for supporting the membrane roof 14 is attached to the outside of the connection fitting 36.

Since the connection ends of the film pieces 32 and 34 are overlapped with each other, the heat insulating material 20 is removed from the connection parts. Therefore, the outside of the connection portion is covered with the joint films 42, 42 branching and extending from the vicinity of the connection end of the outer membrane 14b, and the membrane roof 14 is inflated inside the joint films 42, 42. Later, the heat insulating material 44 is filled. This heat insulating material 44
The foamed plastic particles, natural organic fiber cellulose fibers, or a mixture of both are used, and spray filling by a jet blower is performed.

When the heat insulating material 20 is fixed to the inner film 14a, a triangular cross section is formed on the side of the heat insulating material 20 located closest to the connection end of the film piece 32 as shown in FIG. A heat insulating material 46 for preventing slippage is fixed. The heat insulating material 46 is formed of a flexible heat insulating material having a hardness slightly higher than that of the general heat insulating material 20.

According to the construction method of the heat insulating film roof of the present embodiment, the heat insulating film roof 14 has a double film structure with the inner film 14a and the outer film 14b.
The heat insulating material 20 is interposed between the outer membrane 14b and the outer membrane 14b.
First, the intima 14a is laid on the floor 18 of the indoor artificial ski resort 10. Next, a heat insulating material 2 is provided on the outer surface of the inner film 14a.
Then, the outer membrane 14b is laid on the outer surfaces of the heat insulating materials 20 and 46 so as to be inflated. Therefore, the components (the inner membrane 14a, the outer membrane 14b, and the heat insulating materials 20 and 46) constituting the heat insulating film roof 14 can be easily assembled on the floor 18 of the indoor artificial ski resort 10 which is the site. For this reason, since the heat insulation film roof 14 can be individually carried into the site without completing the assembly at the factory, the inner film 14a, the outer film 14b, and the heat insulating material 20 can be easily transported. .

Further, in this embodiment, since the inner membrane 14a and the outer membrane 14b are composed of an aggregate of a plurality of membrane pieces 32, 34, each of the membrane pieces 32, 34 can be carried alone to the site. This makes it easier to transport the inner membrane 14a and the outer membrane 14b.

The connection ends of the membrane pieces 32 and 34 of the inner membrane 14a and the outer membrane 14b are connected to one each without the heat insulating material 20.
2 and 42, and a heat insulating material 44 is filled therein. At this time, after the membrane roof 14 has been inflated, the heat insulating material 4
4, the connecting portion of each of the membrane pieces 32 and 34 can be freely bent at the time of inflation of the membrane roof 14 because there is no heat insulating material 20, and the rigidity of the entire membrane roof 14 is reduced. be able to. For this reason, the membrane roof 14
The in-facility air pressure required for inflation can be set low, and the size of the blower can be reduced.

Further, the connecting portions of the membrane pieces 32 and 34 are connected to the joint membranes 42 and 34 after the membrane roof 14 is inflated.
Since the heat insulating material 44 is filled in the interior of the large space portion 1, it is possible to prevent the outside air temperature from greatly affecting the connection portion.
6 can improve the heat retaining effect.

In the present embodiment, the case where the method for constructing a heat insulating membrane roof of the present invention is applied to the indoor artificial ski resort 10 is disclosed. However, the present invention is not limited to this. Of course, the present invention can be applied to a facility, for example, a general dome.

[0026]

As described above, in the method for constructing a heat insulating film roof according to the first aspect of the present invention, the inner film and the outer film formed as a double film structure with a heat insulating material interposed therebetween. ,
Since the inner membrane is laid on the floor of the large space facility, then the heat insulating material is fixed on the outer surface of the inner film, and then the outer film is laid on the outer surface of the heat insulating material and inflated. It is possible to assemble each part constituting the heat insulating membrane roof on site, and therefore, it is possible to transport each of these parts, thereby greatly facilitating the transport operation.

According to a second aspect of the present invention, the inner membrane and the outer membrane are formed of an aggregate of a plurality of membrane pieces, and a connection end of each of the inner membrane and the outer membrane is formed. Eliminates the heat insulating material, connects each one, covers this connection with a joint membrane extending from the outer membrane or the inner membrane, inflates the membrane roof, and then covers the interior covered with this joint membrane. Insulation material is filled into the membrane, so that each piece of membrane can be transported to the site independently, making transport easier.In addition, when the membrane roof is inflated, there is no insulation at the connection between each piece of membrane. The air pressure in the facility for inflating the roof by lowering the rigidity of the entire roof can be set low. In addition, since a heat insulating material is filled in the joint portion of the connection portion of each of the membrane pieces, various excellent effects can be obtained in that the outside air temperature can be prevented from being greatly affected from the connection portion.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a cross section of an embodiment of a large space facility to which the present invention is applied.

FIG. 2 is a process diagram sequentially showing the construction of a heat insulating membrane roof in one embodiment of the present invention.

FIG. 3 is a perspective view of an inner membrane showing a fixed state of a heat insulating material in one embodiment of the present invention.

FIG. 4 is an enlarged sectional view corresponding to the line AA in FIG. 1 showing one embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10 artificial ski resort (large space facility) 12 outer wall 14 heat insulating film roof 14a inner film 14b outer film 20 heat insulating material 22 cable 32,34 film piece 36 connection fitting 42 joint film 44 heat insulating material 46 heat insulating material

Claims (2)

(57) [Claims] An inflator and a deflater are stretched between opposing outer walls of a large space facility, and a double membrane structure is constituted by an inner membrane and an outer membrane. In the method of constructing a heat-insulating membrane roof in which a heat insulating material is interposed, an inner membrane is laid on the floor of a large space facility, and then the heat insulating material is fixed to an outer surface of the inner film. A method for constructing a heat-insulating membrane roof, comprising laying an outer membrane on the outer side and inflating the outer membrane. 2. The inner membrane and the outer membrane are constituted by an aggregate of a plurality of membrane pieces, and connection end portions of the respective inner and outer membrane pieces are connected to one each without heat insulating material. Then, this connection portion is covered with a joint membrane extending from the outer membrane or the inner membrane,
The method according to claim 1, wherein after the membrane roof has been inflated, the interior covered with the joint membrane is filled with a heat insulating material.