JPH09217463A - Building structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make information communications in building structures such as office building, etc., completely as radio systems and, at the same time, to increase the flexibility in the use of radio. SOLUTION: The foundation 13 of an office building 11, exterior walls 14, rooftop sub 15 and floor 16 in the top floor are constructed of conventional reinforced concrete. While, for rooms 18, 18... in parts (internal communications space 12) except the top floor in the office building 11, reinforcing bars for concrete constituted of ceilings, floors and side walls of them are formed of non-magnetic and non-conductive FRP bars 19. One repeater controlling radio device 20 is installed in one room 18a inside the internal communications space 12 and, at the same time, radio terminal equipments 21, 21... equipped with transmitting/receiving functions are arranged in the rooms 18, 18....

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building structure, and more particularly, to a building structure such as an office building capable of constructing a wireless internal information communication network.

[0002]

2. Description of the Related Art In recent years,
2. Description of the Related Art In office buildings, wireless LANs that connect computer terminals and computers and printers by wireless are becoming widespread. In some cases, the fire alarm device, the crime prevention device, and various control signals are transmitted and received wirelessly.

However, conventional office buildings use steel frames and reinforcing bars as structural materials, and in particular, reinforcing bars are meshed on all ceilings, floors and side walls. Therefore, each room of the office building forms an electromagnetic wave shield, and it is extremely difficult to directly perform wireless communication between different floors or rooms.

That is, as shown in FIG. 3, the wireless terminals 3, 3 ...
It is possible to directly wirelessly communicate with each other if they are arranged in the same room 2, but different rooms 2 and 2
The wireless terminals 3 and 3 installed in the
The reinforced concrete 4 forming the ceiling, floor, and side walls that partition the wall interferes with the propagation of radio waves.

For this reason, conventionally, relay control radios 5, 5 ... Are installed in each room 2, 2, ..
Wireless terminals 3, which are installed in different rooms 2 and 2 by wiring
It enables communication between the three.

Therefore, while adopting the corner wireless system, some communication between different floors and different rooms must be wired, and a relay control radio is installed on the ceiling of each room. There is also a problem in terms of design. Furthermore, it is not easy to change the layout of the communication network.

[0007] Therefore, technical problems to be solved arise in order to make information communication in a building structure such as an office building completely wireless and to increase the degree of freedom of use of radio waves. Therefore, the present invention aims to solve the problems.

[0008]

The present invention has been proposed in order to solve the above-mentioned problems, and a concrete reinforcing bar which constitutes a ceiling, a floor or a side wall is made non-magnetic and non-conductive at a predetermined position. By forming a reinforced plastic streak, a wireless transmitter is installed in one of different rooms through the predetermined place, and a wireless receiver is installed in the other room, and a wireless information communication network is provided inside a predetermined area. It is intended to provide a building structure capable of being constructed.

Here, the location where the reinforced plastic streak is used on the ceiling, floor or side wall may be the whole for each ceiling, floor or side wall, or may be a fixed part.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. In FIG. 1, reference numeral 11 denotes an office building, and an internal information communication network is constructed in a portion other than the uppermost floor of the office building 11 (hereinafter referred to as "internal communication space 12").

Thus, the foundation 13, the outer wall 14, the roof slab 15, and the floor 16 on the uppermost floor of the office building 11 are made of conventional reinforced concrete. As a result, the internal communication space 12 is covered by the mesh of the reinforcing bars 17, and it is possible to prevent external radio waves from entering the internal communication space 12 and internal radio waves from leaking to the outside.
In order to further improve the electromagnetic shielding function of the internal communication space 12, a sheet or plate made of carbon or metal is laid on the outer wall 14, the floor 16 on the top floor, or the outer wall 1
It is advisable to form the window 4 with an electromagnetic wave reflecting material such as an electromagnetic wave shielding glass.

On the other hand, each room 1 in the internal communication space 12
8, 18, ... Reinforced concrete reinforcing bars that make up the ceiling, floor, and side walls are non-magnetic and non-conductive reinforced plastic reinforcing bars (hereinafter referred to as "FRP reinforcing bar 19").
To form. Here, in the present embodiment, the F
An aramid fiber material having a high insulating property is used as the material of the RP streak 19, but any other FRP streak may be used as long as it is non-magnetic and non-conductive.

According to the electromagnetic wave transmission test of the concrete slab having the FRP reinforcement 19 as a reinforcing reinforcement, it is confirmed that the transmission of radio waves having a frequency of several GHz or less is not obstructed to the extent that the communication function is lost. Is known. Also,
It has been clarified by the respective test data that these FRP reinforcements 19 have a tensile strength higher than that of rebars, and the mechanical strength required for the ceiling, floor and side walls of the rooms 18, 18 ... It has. Further, no galvanic corrosion due to stray current occurs, and there is no deterioration in concrete strength due to corrosion. Further, unlike the rebar, no residual magnetism is generated in the FRP muscle 19, and malfunction of the precision instrument due to residual magnetism can be prevented.

When one relay control radio 20 is installed in one room 18a in the internal communication space 12, the ceiling, floor and side walls in the internal communication space 12 have the property of transmitting electromagnetic waves as described above. Therefore, the electromagnetic waves emitted from the relay control radio 20 are not limited to the room 18a, but other rooms 18 on the same floor and rooms 18 and 1 on different floors.
8 can also be propagated to the relay control radio 2
0 can receive not only the electromagnetic wave emitted from any place in the room 18a but also the electromagnetic wave emitted from any place in each of the other rooms 18, 18 ... Therefore,
If the wireless terminal devices 21, 21 ... Having a transmission / reception function are arranged in the rooms 18, 18 ... In the internal communication space 12,
These wireless terminal devices 21, 21 ... Are the same relay control wireless device 20 regardless of the rooms and floors in which they are installed.
It is possible to wirelessly communicate with each other via. Further, it is also possible to configure to perform linear wireless communication between the wireless terminal devices 21 and 21 in different rooms 18 and 18 without going through the relay control wireless device 20.

In this way, a completely wireless internal information communication network is constructed for the entire area of the internal communication space 12. If the tenant of a room 18 in the internal communication space 12 is changed, it is not necessary to transmit electromagnetic waves to the room 18, so that the room 1
.. Carbon or metal sheets, plates, etc. are laid on the ceiling, floor, or side walls facing the room 18 in the rooms 18, 18 ... As a result, the room 18 is excluded from the internal communication space 12, and electromagnetic waves do not enter the room 18. Thus, the internal information communication network can be freely rebuilt even after the office building 11 is constructed. In addition, it is possible to formulate a radio wave utilization plan in advance without actually measuring the electromagnetic wave transmittance after building a building as in the past.

FIG. 2 shows another embodiment of the present invention. Unlike the office building 11 shown in the figure, the office building 31 uses FRP bars 19 for certain parts of the ceiling, floor, or side walls, and although not shown, all other parts are made of normal steel bars. It is used. Therefore, it can be considered that each ceiling, floor or side wall is provided with a "window" that allows electromagnetic waves to pass therethrough. Through this "window", different rooms 18, 18 can be connected to each other in the same manner as the office building 11. Wireless communication between them becomes possible.

The office building 31 is particularly advantageous when used as a rental building. That is, in the rental building, tenants are frequently changed, but the office building 11 has FR over the entire ceiling, floor or side wall.
Since the P streak 19 was provided, it was necessary to lay a sheet or plate made of carbon or metal for electromagnetic shielding against a specific room 18 on the entire surface of a predetermined ceiling, floor or side wall, and the work was easy. Not. On the other hand, in the case of this office building 31, since it is sufficient to shield only the above-mentioned “window”, the space for performing internal information communication can be changed easily and quickly according to the tenant's occupancy status, and the wireless communication network can be changed. It can be rebuilt.

The present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified ones.

[0019]

As described above, according to the present invention, the reinforcing bars of concrete constituting the ceiling, floor or side wall are formed of non-magnetic and non-conductive reinforced plastic reinforcing bars at predetermined positions, so that the inside of the predetermined area It is possible to build a completely wireless information communication network.

Therefore, unlike the prior art, it is not necessary to install a relay control radio device or cable for each room for communication between different rooms, and if it is within the predetermined area, any place Since the data can be transmitted and received by the user, the layout of the internal information communication network can be easily changed. Furthermore, when it is desired to exclude a specific room from the range of the internal information communication network, the above-mentioned predetermined location on the ceiling, floor or side wall facing the specific room in the room adjacent to the specific room above, below, left and right. It suffices to lay a sheet or plate made of carbon or metal, which greatly increases the degree of freedom in radio wave utilization plans.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention and is an explanatory diagram thereof.

FIG. 2 is an explanatory diagram showing another embodiment of the present invention.

FIG. 3 shows a conventional example and its explanatory diagram.

[Explanation of symbols]

 11, 31 Office building 12 Internal communication space 17 Reinforcing bar 18 Room 19 FRP muscle 20 Relay control radio 21 Wireless terminal device

Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number in the office FI Technical indication location H04B 7/26 H04B 7/26 A H04L 12/28 H04L 11/00 310B (71) Applicant 000001085 Kuraray Okayama Co., Ltd. 1621 Sakata, Kurashiki-shi, Japan (71) Applicant 000183325 Sumitomo Construction Co., Ltd. 13-13 Arakicho, Shinjuku-ku, Tokyo (71) Applicant 000003001 Teijin Limited 1-6-7 Minamihonmachi, Chuo-ku, Osaka-shi, Osaka ( 71) Applicant 591253135 DuPont Toray Kevlar Co., Ltd. 1-5-6 Nihonbashihonmachi, Chuo-ku, Tokyo (71) Applicant 000219875 Tokyu Construction Co., Ltd. 1-16-14 Shibuya, Shibuya-ku, Tokyo (71) Applicant 000140982 Matagumi Co., Ltd. 2-5-8 Kita-Aoyama, Minato-ku, Tokyo (71) Applicant 000000549 Obayashi Corporation Co., Ltd. 4-33 Kitahama-higashi, Chuo-ku, Osaka-shi, Osaka (71) Applicant 394017251 Construction Research Institute Director, Tsukuba, Ibaraki Prefecture Ichihara 1 (71) Applicant 000141060 Seki Co., Ltd. Engineering 4-83-3 Shibaura, Minato-ku, Tokyo (72) Inventor Keinao Okawa 1-chome, 80-1, Mukaiyama, Naka-cho, Naka-gun, Naka-gun, Ibaraki Prefecture (72) In-house Naka Institute, Japan Atomic Energy Research Institute (72) Yoichi Kana, Naka-gun, Ibaraki Prefecture Nakacho, Oita, Mukaiyama, 801 No. 1 at the Japan Atomic Energy Research Institute, Naka Research Institute (72) Inventor Masaki Tsuneoka, Ibaraki Prefecture, Naka-machi, Nakamachi, Nakamachi, Japan No. 80-1, Komuyama, Japan Atomic Energy Research Institute Naka Research Institute (72) Inventor Takehiko Kato, Ibaraki Prefecture Tsukuba City Oigaikekubo Shimoyama 1043-1 Kumagai Gumi Technology Research Institute Co., Ltd. (72) Inventor Shigeichiro Omomo Tsukuba City Okiigaboji Shimoyama 1043-1 Kumagaya Gumi Technology Research Co., Ltd. (72) Inventor Moriya Toshio Tokyo 3-10-1 Iwamotocho, Chiyoda-ku Mitsui Construction Co., Ltd. (72) Inventor Toshihiko Nishio 518-1 Komagaki, Nagareyama-shi, Chiba Mitsui Construction Co., Ltd. Technical Research Institute (72) Inventor Tadashi Fujisaki Minato-ku, Tokyo Shibaura 1-2-3 Shimizu Construction Co., Ltd. (72) Invention Person Yoshihiko Kawamura 3-8-2 Nihonbashi, Chuo-ku, Tokyo Kuraray Co., Ltd. (72) Inventor Yoshitsugu Higuchi 13-13 Araki-cho, Shinjuku-ku, Tokyo (72) Inventor Masaya Kamikichi 2-Uchiyuki-cho, Chiyoda-ku, Tokyo 2- 1-1 Teijin Limited Company Tokyo Head Office (72) Inventor Atsushi Kakuda 2-7-1 Hirakawa-cho, Chiyoda-ku, Tokyo (72) Inventor Akihiro Kikuchi 1-16-14 Shibuya, Shibuya-ku, Tokyo Tokyu Construction Shares In-house (72) Inventor Akihisa Hara 2-5-8 Kita-Aoyama, Minato-ku, Tokyo Intra-company group (72) Inventor Tsutomu Sasaki 2-3 Kandaji-cho, Chiyoda-ku, Tokyo Obayashi Tokyo In-house (72) Inventor Yasuyuki Yamauchi 1st Tsukuba City Ibaraki, Ibaraki Prefectural Building Research Institute (72) Inventor Hiroshi Fukuyama 1st Tsukuba City Ibaraki Prefectural Building Research Institute (72) Inventor Murano Yoshihiro Chiba 2-1-24 Shinjuku, Chuo-ku, Chiba City Kandenko Chiba Branch Co., Ltd.

Claims (1)

[Claims] 1. A concrete reinforcing bar that constitutes a ceiling, a floor, or a side wall is formed of a non-magnetic and non-conductive reinforced plastic reinforcing bar at a predetermined location, so that one of different rooms is connected through the predetermined location. A building structure characterized in that a wireless transmitter is installed and a wireless receiver is installed on the other side so that a wireless information communication network can be constructed within a predetermined area.