JPH0797716B2 - Electromagnetic shielding method for reinforced concrete buildings - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electromagnetic shielding method for a reinforced concrete building in which a finishing material is attached to a concrete wall via a clasp.

[Conventional technology]

In general, intelligent buildings commonly use information communication equipment such as complex electronic exchanges and computers to communicate information with the inside and outside of the building, but with a growing sense of value for information, diversification of needs, individualization, and faster Providing accurate information is one of the important issues in future buildings. As an answer to such a problem in an intelligent building, an information network has been studied and proposed by a data highway method using an optical fiber cable or a coaxial cable. In the data highway method using the optical fiber cable or the coaxial cable, the optical fiber cable or the coaxial cable has to be stretched to every corner (terminal device) in the intelligent building, and the extra cost for laying the cable is required. And it will take a construction period.

In that respect, if you use radio waves, you do not need to lay a cable,
In this case, on the other hand, the noise radio wave is emitted to the outside, so that it is regulated by the Radio Law. On the other hand, there is a problem that the system malfunctions due to external radio waves, internal TV intermediate frequency, radio microphone radio waves, and the like.

Therefore, the applicant of the present invention secures the electromagnetic shielding performance of the entire building by placing concrete containing ferrite or concrete containing mesh to construct the skeleton, or by the coating itself of the spray tile on the exterior, and regulates under the Radio Law. Separately proposed an intelligent building in which any frequency can be freely selected and wireless communication can be freely performed in the building (for example, Japanese Patent Application Nos. 61-253162 and 61-61).
No. 25316).

[Problems to be solved by the invention]

However, if the electromagnetic shielding structure as described above is adopted, the concrete becomes expensive, and since ferrite and mesh are put in the concrete wall, not only the total construction cost becomes high, but also there is a technical problem in improving the electromagnetic shielding performance. Many. In addition, there is a problem that the method of making the frame itself an electromagnetic shielding structure cannot be applied to an existing building.

The present invention solves the above problems and provides an electromagnetic shielding method for a reinforced concrete building that can easily secure electromagnetic shielding performance on the outer wall of the building regardless of whether the building is newly built or rebuilt. With the goal.

[Means for solving problems]

Therefore, the present invention is an electromagnetic shielding method for a reinforced concrete building in which a finishing material for an exterior is attached to a concrete wall through a stopper by a dry method, and a conductive material is applied to the surface of the concrete wall to finish the exterior. It is characterized in that it is fixed by a metal stopper for attaching the material.

[Action]

In the electromagnetic shielding method of the reinforced concrete building of the present invention,
It is only necessary to add a step of applying a conductive material to the surface of the concrete wall before applying the exterior material. So after that,
By attaching the finishing material to the concrete wall via the clasp, the finishing material can be attached and the conductive material can be fixed at the same time.

〔Example〕

 Hereinafter, embodiments will be described with reference to the drawings.

FIG. 1 is a diagram for explaining an embodiment of an electromagnetic shielding method for a reinforced concrete building according to the present invention, and FIG. 2 is a diagram for explaining an example of a conventional dry type exterior construction. In the figure, 1 is a concrete wall, 2 is a metal mesh, 3 is a stainless metal object, and 4 is a stone stick.

The exterior construction of a building includes a dry construction method in which a stone wall 4 of an exterior material is attached to a concrete wall by using a stainless steel hardware, and a wet construction method in which mortar or the like is applied onto the concrete wall. The reinforced concrete building according to the present invention The electromagnetic shielding method is applied to the former dry construction method as shown in FIG. 1, and the electromagnetic shielding material is adhered to the void space of the base between the concrete wall 1 and the stone sticker 4. In FIG. 1, the metal mesh 2 is an electromagnetic shielding material to be attached to the void portion of the base,
The final end is connected to the body ground plate. Stainless steel hardware 3
Is an angle metal fitting that also serves as a stopper for the metal mesh 2 and for mounting the stone sticker 4 as the exterior finishing material.

Next, an electromagnetic shielding method for a reinforced concrete building according to the present invention will be described. First, concrete is cast on the outer wall, and when the concrete wall 1 is completed, a metal mesh 2 is stretched on the surface of the concrete wall 1 to connect the final end to the frame ground plate, and an electromagnetic shielding layer is formed on the outside of the concrete wall 1. Then, the lap joint of the metal meshes 2 is stopped with the stainless steel fitting 3 for attaching the stone. After that, attach the stone sticker 4. In this way, the stainless metal piece 3 is used as an attachment for the stone sticker 4 as an exterior material, and the conductivity of the connection portion of the metal mesh 2 is secured.

As shown in Fig. 2, the exterior of the conventional dry method is a concrete wall 1 with a stainless steel hardware 3 for attaching stones.
It was embedded in, and the stone sticker 4 was attached to this, and the exterior finish was performed. The electromagnetic shielding method for a concrete wall according to the present invention utilizes such an underlying void portion of the conventional structure and stops the lap joint portion between the metal meshes 2 by also using the stainless steel fitting 3 for attaching stones. is there. Therefore, conductivity can be secured together with the joint of the metal mesh 2.

Note that the present invention is not limited to the above-mentioned embodiment, and various modifications are possible. For example, in the above-mentioned embodiment, the metal mesh is used as the electromagnetic shielding material, but an expanded metal for building materials is used. You may substitute. In addition, as the exterior finishing material for office buildings, as shown in Fig. 1, there have been many cases of stone pasting 4 from the old days. This is because it is used regardless of scale. From this point of view, an example in which a stone sticker is used as the exterior material has been shown, but it is not limited to this example, and it goes without saying that a curtain wall or other exterior material may be used.

In addition, granite (commonly called granite), andesite, diorite, etc. are generally used for exteriors, but all of them are radio wave transparent in composition and do not have an electromagnetic shielding function. It goes without saying that the electromagnetic shielding method for concrete walls according to the present invention can be applied to a building using such an exterior finishing material.

〔The invention's effect〕

As is clear from the above description, according to the present invention, since the metal mesh is stretched by utilizing the void portion of the base, it is possible to secure the electromagnetic shielding performance on the outer wall by a relatively simple method. Further, since the metal mesh joint is also used as the stainless steel fitting for attaching the stone, the performance deterioration of the metal mesh can be prevented easily. Furthermore, by using an expanded metal mesh for building materials as the metal mesh, it is possible to improve durability and economic efficiency as well as electromagnetic shielding performance.

In general, the outer wall of a building and the concrete wall easily transmit radio waves, and it is difficult to prevent the intrusion. In this respect, in the present invention, the electromagnetic shielding performance of the outer wall portion is enhanced by the method of applying the finishing material, so that the utility thereof is great.

[Brief description of drawings]

FIG. 1 is a diagram for explaining an embodiment of an electromagnetic shielding method for a reinforced concrete building according to the present invention, and FIG. 2 is a diagram for explaining an example of a conventional dry type exterior construction. 1 ... Concrete wall, 2 ... Metal mesh, 3 ... Stainless steel hardware, 4 ... Steel attachment.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Teruo Tanaka Inventor Teruo 16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Toshiyuki Ishikawa 2-16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Construction company (72) Inventor Takahiro Wakaoji 2-16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Company (72) Inventor Akio Hirano 2-16-1, Kyobashi, Chuo-ku, Tokyo Construction Shimizu Co., Ltd. (72) Inventor Tetsuo Sekikawa 2-16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Koji Nagata 2-1-1-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Hitoshi Sakurai 2-16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (56) Reference JP-A-57-10299 (JP, A)

Claims (3)

[Claims] 1. An electromagnetic shielding method for a reinforced concrete building in which a finishing material for an exterior is attached to a concrete wall through a clasp by a dry method, and a conductive material is applied to the surface of the concrete wall, and the conductive material is used as a finishing material for the exterior. An electromagnetic shielding method for a reinforced concrete building, characterized in that it is fixed by a stopper attached to the building. 2. The electromagnetic shielding method for a reinforced concrete building according to claim 1, wherein a mesh material is used as the conductive material. 3. An electromagnetic shielding method for a reinforced concrete building according to claim 1, wherein expanded metal is used as the conductive material.