JP2523971Y2 - Electromagnetic wave shield structure at the column end and beam end of the electromagnetic wave shield building - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic shielding structure at a column end and a beam end of an electromagnetic wave shielding building which can completely shield harmful electromagnetic waves particularly at a column end and a beam end.

[0002]

2. Description of the Related Art In recent years, office buildings have a steel frame reinforced concrete structure (hereinafter, referred to as "SRC structure") in which frames such as columns and beams are used in response to an increase in height. In many cases, a plurality of floor portions of the section have an electromagnetic wave shielding structure.

[0003] Further, as this kind of electromagnetic wave shielding building, there is a building having a so-called inner shield structure, which is constructed by attaching an electromagnetic wave shielding member to the indoor side surface of a slab and a wall by an attaching method of the electromagnetic wave shielding member;
A building having a so-called outer shield structure, which is configured by attaching an electromagnetic wave shield member to an outdoor surface of a slab and a wall, is generally known.

[0004]

However, in any of the electromagnetic wave shielding structures, the electromagnetic wave can be almost completely shielded at the center between the columns of the slab and the wall, but not at the column end and the beam end. Since the pole end penetrates the electromagnetic wave shield member attached to the floor and ceiling, and the beam end penetrates the electromagnetic wave shield member attached to the wall, the electromagnetic wave shield at the column end and the beam end is If it is insufficient, electromagnetic waves may pass through the column ends and beam ends, and may even pass through the columns and beams themselves as conductors, making it impossible to completely shield electromagnetic waves. was there.

[0005] In addition, a multi-storey S
When building an RC structure with an electromagnetic shielding structure, the installation area of the electromagnetic shielding member is smaller when the building is integrated on multiple floors or on the whole building than on each room, and the amount of electromagnetic shielding member used Is extremely economical because it can greatly reduce the construction time and the construction time can be greatly shortened, which is extremely advantageous.However, it is difficult to shield the electromagnetic waves at the column and beam ends for the above reasons. For this reason, at present, construction is performed for each room, and it is almost impossible to completely shield electromagnetic waves even if a plurality of floors or the entire building has an electromagnetic wave shielding structure.

The present invention has been made in order to solve the above-mentioned problems, and in particular, a pole end and a beam of an electromagnetic shield building capable of completely shielding harmful electromagnetic waves at a pole end and a beam end. It is an object of the present invention to provide an electromagnetic shielding structure at an end.

[0007]

According to the electromagnetic wave shielding structure of the present invention, the electromagnetic wave shielding structure at the column end and the beam end is provided by continuously attaching the electromagnetic wave shielding member to the indoor side surface or the outdoor side surface of the slab and the wall. At the end of the column penetrating the electromagnetic wave shielding member, a hakama-shaped electromagnetic wave shielding member that covers a range of a plurality of column diameters in the material axis direction of the column is attached, and an end of a beam penetrating the electromagnetic wave shielding member. A skirt-shaped electromagnetic wave shielding member that covers a range of multiple times the beam size in the direction of the beam axis of the beam, and electrically connects the skirt-shaped electromagnetic wave shielding member and the electromagnetic wave shielding member, respectively. Have been.

[0008]

1 to 4 show an embodiment of the present invention.
The electromagnetic wave shielding structure of the column end and the beam end of the multi-story electromagnetic wave shielding building of RC structure is shown. In the figure, the side columns 1 (the columns on the outer periphery of the building) and the inner columns 2 (from the outer periphery of the building) The internal pillars) and the beams 3 of each floor are configured in an SRC structure.

Further, conductive surfaces such as copper plate, copper foil, or zinc iron plate are provided on the indoor side surface of the outer wall 4 of each floor, the indoor side surface (ceiling surface) of the rooftop slab 5, and the indoor side surface (floor surface) of the ground floor slab 6. An electromagnetic wave shield plate 7 made of a very good metal plate is continuously attached, so that the entire building has an electromagnetic wave shield structure (inner shield), and harmful electromagnetic waves that invade from the outside and leak from the inside of the building. Harmful electromagnetic waves can be shielded.

The upper end of the inner pillar 2 on the top floor, the lower end of the inner pillar 2 on the ground floor, and the outer periphery of the side pillar 1 side end of the beam 3 on each floor have the same quality as the electromagnetic shielding plate 7. A skirt-shaped electromagnetic wave shield member 8 made of a metal plate is attached.

The skirt-shaped electromagnetic wave shielding member 8 is formed in a tubular shape having a rectangular cross section so as to completely cover the column outer periphery and the beam outer periphery within a certain range in the axial direction of the column and the beam from the column end and the beam end, respectively. ing. The skirt-shaped electromagnetic wave shielding member 8 at the end of the inner pillar 2 is electrically joined to an electromagnetic wave shielding plate 7 attached to the ceiling surface of the rooftop slab 5 and the floor surface of the ground floor slab 6 by welding or soldering. In addition, the skirt-shaped electromagnetic wave shielding member 8 at the end of the beam 3 on each floor is electrically joined to the electromagnetic wave shielding plate 7 attached to the indoor side surface of the outer wall 4 by welding or soldering without any gap.

As described above, the skirt-shaped electromagnetic wave shielding members 8 are attached to the end portions of the inner column 2 and the ends of the beams 3 penetrating the electromagnetic wave shielding plate 7, respectively. Since the electromagnetic wave shield plate 7 is electrically connected to the electromagnetic wave shield plate 7 by welding or soldering, harmful electromagnetic waves that pass through the electromagnetic wave shield plate 7 from the end portions of the inner pillar 2 and the beam 3 are protected by a skirt-shaped electromagnetic wave shield. It is shielded by being attenuated when passing through the member 8.

In such a case, the skirt-shaped electromagnetic wave shielding member 8 is
A longer one can more completely shield the passage of the electromagnetic wave, but a sufficient shielding effect can be obtained if the length is about 4 to 6 times the column diameter and the beam length, respectively.

The electromagnetic wave can be shielded by the hat-shaped electromagnetic wave shielding member 8 for the same reason that a car radio or the like is temporarily inaudible in a tunnel.

FIG. 2 shows an electromagnetic shielding structure at the column end and the beam end of an electromagnetic shielding building having a so-called outer shielding structure. An electromagnetic wave shielding plate 7 is continuously attached to the outdoor side surface (roof surface) of the rooftop slab 5 and the floor surface of the ground floor slab 6, whereby the entire building has an electromagnetic wave shielding structure.

An electromagnetic shield member 8 is attached to the outer periphery of the lower ends of the side columns 1 and the inner columns 2 on the ground floor, and the electromagnetic shield plate 8 is attached to the floor. 7 are electrically connected by welding or soldering.

As described above, since the electromagnetic wave shielding at the column end and the beam end penetrating the electromagnetic wave shielding plate 7 can be easily performed, only a part of the floor or only a part of the plural floors is integrally formed. A multi-storey building with an electromagnetic shielding structure can be easily constructed.

[0018]

Advantages of the Invention The electromagnetic shielding structures at the column ends and beam ends of the electromagnetic shielding building according to the present invention have the above-described configurations, and therefore have the following effects.

An electromagnetic wave shield member is continuously attached to the indoor side surface or the outdoor side surface of the slab and the wall body, and a column end portion penetrating the electromagnetic wave shield member covers a range of a multiple of the column diameter in the material axis direction of the column. A skirt-shaped electromagnetic wave shielding member is attached as described above, and a skirt-shaped electromagnetic wave shielding member is attached to a beam end portion penetrating the electromagnetic wave shielding member so as to cover a range of a multiple of the beam length in the beam axis direction of the beam, and Since these skirt-shaped electromagnetic wave shield members and the electromagnetic wave shield members are electrically connected to each other, electromagnetic waves leak from column ends and beam ends, and furthermore, the columns and beams themselves try to pass as conductors. Harmful electromagnetic waves can be completely shielded. Since electromagnetic waves can be completely shielded at the column ends and beam ends, electromagnetic shield buildings that have a complete electromagnetic wave shielding structure for the entire building, only some floors, or only some of the multiple floors are available. Can be easily constructed,
In addition, since the mounting area of the electromagnetic wave shielding member is reduced, the usage of the electromagnetic wave shielding member can be greatly reduced, and economical construction can be performed. In addition, the construction can be simplified and the construction period can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an electromagnetic shield building having an inner shield structure showing one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of an electromagnetic shield building having an outer shield structure showing one embodiment of the present invention.

FIG. 3 is an enlarged sectional view showing an electromagnetic wave shield structure at a beam end;

FIG. 4 is a sectional view taken along line aa in FIG. 3;

[Explanation of symbols]

1 ... side pillars (pillars on the outer periphery of the building), 2 ... inner pillars (pillars inside the outer circumference of the building), 3 ... beams, 4 ... outer walls (walls), 5
… Rooftop floor slab (slab), 6… Ground floor slab (slab), 7… Electromagnetic wave shield plate (electromagnetic wave shield member),
8 ... Hakama-shaped electromagnetic wave shielding member.

Claims (1)

(57) [Scope of request for utility model registration] 1. An electromagnetic wave shielding member is continuously attached to an indoor side surface or an outdoor side surface of a slab and a wall body, and a plurality of times of a column diameter in a material axis direction of the column is provided at an end of a column penetrating the electromagnetic wave shielding member. Attach a skirt-shaped electromagnetic wave shielding member that covers a range of multiple times the beam length in the material axis direction of the beam at the end of a beam penetrating the electromagnetic wave shielding member. And an electromagnetic wave shielding structure at a column end and a beam end of an electromagnetic wave shielding building, wherein the skirt-shaped electromagnetic wave shielding member and the electromagnetic wave shielding member are electrically connected to each other.