JP2571885B2 - Electromagnetic wave shield building with steel reinforced concrete structure - 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 shield building having an SRC structure in which a pillar is made of a steel reinforced concrete structure (hereinafter referred to as "SRC structure") and a beam is made of a steel frame.

[0002]

2. Description of the Related Art In recent years, office buildings have an SRC structure such as pillars and beams in response to an increase in height, and the whole or part of the building is shielded from electromagnetic waves by the spread of computers and office automation equipment. In many cases, it has a structure.

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

[0004]

However, in any of the electromagnetic wave shielding structures, since the electromagnetic wave shielding member is not particularly hindered at the center between the columns of the slab and the wall, the electromagnetic wave shielding member is not used. Since it can be attached so that no gap is generated, electromagnetic waves can be shielded almost completely.However, at the column ends and beam ends, the column ends penetrate the electromagnetic wave shielding member attached to the floor and ceiling, and Since the beam end penetrates the electromagnetic wave shielding member attached to the wall, if the electromagnetic wave shielding at the column end and beam end is insufficient, harmful electromagnetic waves will be emitted from the column end and beam end. There is a problem that electromagnetic waves cannot be completely shielded in some cases.

[0005] In addition, even though the building has the SRC structure, not all parts are constituted by the SRC structure, and in many cases, the columns are constituted by the SRC structure, and the beams are constituted by the steel frame structure. . Therefore, SR
The column ends of the C structure and the beam ends of the steel structure need to have different electromagnetic wave shielding structures.

Further, in the case where an electromagnetic wave shielding structure is used for a multi-story SRC structure building by the above-mentioned method, it is more effective to perform the electromagnetic wave shielding member integrally for a plurality of floors or for the whole building than for each room. It is extremely economical because the installation area and the amount of electromagnetic wave shielding members can be greatly reduced, and it is extremely advantageous because the construction can be simplified and the construction period can be significantly shortened. At present, construction is performed in each room because shielding is difficult due to the above reasons. Even if multiple floors or the whole building are constructed with electromagnetic shielding structure, complete electromagnetic shielding is required. Construction of a structural building was almost impossible.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and in a building having an SRC structure, harmful electromagnetic waves can be completely shielded, particularly at a column end and a beam end. Alternatively, it is another object of the present invention to provide an SRC-structured electromagnetic shielding building that enables the entire building to have a substantially complete electromagnetic shielding structure.

[0008]

According to the present invention, there is provided an electromagnetic shielding building having an SRC structure according to the present invention. The electromagnetic shielding building has a multi-story steel reinforced concrete structure in which columns are made of steel reinforced concrete and beams are made of steel. An electromagnetic wave shielding member is continuously attached to the indoor side surface or the outdoor side surface of the top floor slab, the bottom floor slab, and the wall of the whole or part of the plurality of floor portions, and a pillar material is provided at a column end penetrating the electromagnetic wave shielding member. Attach a skirt-shaped electromagnetic wave shielding member that covers a range of multiple times the column diameter in the axial direction, attach a rectangular plate-shaped shielding plate larger than a beam cross section to a beam end penetrating the electromagnetic wave shielding member, and
The electromagnetic wave shielding member and the electromagnetic wave shielding member, and the shielding plate and the electromagnetic wave shielding member are electrically connected to each other.

In addition, an electromagnetic shield member is mounted on the indoor side surface or the outdoor side surface of the top floor slab, the bottom floor slab, and the wall in the whole or a plurality of floors of the electromagnetic wave shield building, and a column end penetrating the electromagnetic wave shield member. At the part and at the end of the beam, a skirt-shaped electromagnetic wave shielding member is attached, which covers the column diameter and the beam axis direction of the beam in the axial direction of the pillar and the axial direction of the beam, respectively. And the electromagnetic wave shielding member are electrically connected to each other.

[0010]

FIG. 1 shows a multi-story electromagnetic shield building having an SRC structure according to an embodiment of the present invention. In FIG. 1, side columns 1 (columns on the outer periphery of the building) and inner columns 2 (columns) on each floor are shown. The pillars located inside the outer periphery of the building are composed of an SRC structure, and the beams 3 of each floor are composed of a steel frame material such as H-section steel.

[0011] In addition, a conductive material such as a copper plate, a copper foil, or a zinc iron plate is provided on the indoor side surface of the outer wall 4 of each floor, the indoor side surface (ceiling surface) of the top floor slab 5, and the indoor side surface (floor surface) of the ground floor slab 6. An electromagnetic wave shielding plate 7 made of a very good metal plate is continuously attached, whereby the whole building exhibits an electromagnetic wave shielding structure (inner shield), and attempts to leak harmful electromagnetic waves from the outside and harmful electromagnetic waves from inside the building. Harmful electromagnetic waves can be shielded.

At the upper end of the inner pillar 1 on the top floor and on the outer periphery of the lower end of the inner pillar 1 on the ground floor, a hakama-shaped electromagnetic wave shielding member 8 made of a metal plate of the same quality as the electromagnetic wave shielding plate 7 is attached. . The skirt-shaped electromagnetic wave shielding member 8 is attached so as to completely cover a certain range of the column outer periphery from the column end in the axial direction of the column.

A rectangular plate-like shielding plate 9 made of a metal plate of the same quality as the electromagnetic wave shielding plate 7 and having a size slightly larger than the cross section of the beam is attached to the outer periphery of the beam 3 on each floor at the side pillar 1 side end. I have. A hole having substantially the same shape as the cross-sectional shape of the beam 3 is formed in the shielding plate 9. The shielding plate 9 is attached to the end of the beam 3 by passing the end of the beam 3 through this hole. The peripheral portions of the holes are electrically connected by welding, soldering, or the like so that no gap is formed.

The skirt-shaped electromagnetic wave shielding member 8 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, soldering, or the like without any gap. The plate 9 is electrically connected to the electromagnetic wave shield plate 7 attached to the indoor side surface of the outer wall 4 without any gap by welding or the like. The joining in this case is preferably lap joining.

As described above, the skirt-shaped electromagnetic wave shielding member 8 is attached to the outer peripheral portion of the pillar end portion penetrating the electromagnetic wave shielding plate 7, and the skirt-shaped electromagnetic wave shielding member 8 and the electromagnetic wave shielding plate 7 are welded or soldered. As a result, the harmful electromagnetic waves that are going to pass through the column ends are attenuated when passing through the skirt-shaped electromagnetic wave shielding member 8 and are thus shielded.

FIG. 3 shows that, in the electromagnetic shielding structure of the inner shield, instead of attaching the shielding plate 9 to the end of the beam 3, a skirt-shaped electromagnetic shielding member 8 is attached similarly to the end of the column 2. This figure shows an electromagnetic wave shield structure at the beam end formed by electrically joining a skirt-shaped electromagnetic wave shield member 8 and an electromagnetic wave shield member 7.

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

The electromagnetic wave can be shielded by the skirt-shaped electromagnetic wave shielding member 8 for exactly the same reason that, for example, a car radio is temporarily inaudible in a tunnel.

The beam 3 penetrating the electromagnetic wave shielding plate 7
The shield plate 9 is attached to the end of the beam, and the shield plate 9 and the electromagnetic wave shield plate 7 are electrically joined by welding, soldering, or the like. Be shielded.

FIG. 2 shows a building having a so-called outer shield structure. In a building having an SRC structure similar to that shown in FIG. 1, the outdoor surface of the outer wall 4, the outdoor surface (roof surface) of the top floor slab 5, and the ground floor are shown. An electromagnetic wave shielding plate 7 is continuously attached to the indoor side surface (floor surface) of the slab 6, and thereby the whole building has an electromagnetic wave shielding structure.

A hakama-shaped electromagnetic wave shield member 8 is attached to the outer periphery of the lower end of the side pillar 1 and the inner pillar 2 on the ground floor, and the hakama-shaped electromagnetic wave shield member 8 and an electromagnetic wave shield adhered to the floor surface. The plate 7 is electrically connected by welding or soldering.

Although the embodiment has been described with respect to a building in which the entire building forms an electromagnetic wave shielding structure, the electromagnetic wave shielding at the column and beam ends penetrating the electromagnetic wave shielding plate 7 can be simplified by the above-described method. As a result, it is possible to easily construct an electromagnetic shielding building having an electromagnetic shielding structure only on some floors or only on a plurality of floors.

[0023]

The electromagnetic shield building having the SRC structure according to the present invention is configured as described above.
It has the following effects.

In the column end of the SRC structure penetrating the electromagnetic wave shielding members attached to the ceiling surface and the floor surface of the top floor slab and the bottom floor slab, the column is formed on the outer periphery of the column end in the axial direction of the column. Attach a skirt-shaped electromagnetic wave shielding member that covers a range of multiple times the diameter, and try to pass from the column end by electrically joining this skirt-shaped electromagnetic wave shielding member and the electromagnetic wave shielding member by welding or soldering. At the beam end of the SRC structure that penetrates the electromagnetic wave shielding member attached to the indoor side surface of the wall, the beam end can be completely shielded from harmful electromagnetic waves. A shield-shaped electromagnetic wave shielding member that covers a range several times the beam length in the axial direction of the shielding plate or the beam, and the shielding plate and the shield-shaped electromagnetic wave shielding member and the electromagnetic wave shield are attached. By electrically connecting the shield member to the shield member by welding, soldering, or the like, harmful electromagnetic waves that pass through the beam end can be completely shielded.

In addition, since electromagnetic waves leaking from the column ends and beam ends penetrating the electromagnetic wave shielding member can be completely shielded, the entire building, only some floors, or some multi-story parts It is possible to easily construct an electromagnetic shield building with an SRC structure that has only a complete electromagnetic shield structure, and therefore the installation area of the electromagnetic shield member and the amount of the electromagnetic shield member used can be greatly reduced, resulting in economical construction It is also possible to simplify the construction and to significantly shorten the construction period.

[Brief description of the drawings]

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

FIG. 2 is a longitudinal sectional view of an electromagnetic shield building having an outer shield structure having an SRC structure according to an 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 Signs] 1 ... side pillars (pillars on the outer periphery of the building), 2 ... inner pillars (pillars inside the outer periphery of the building), 3 ... beams, 4 ... outer walls (walls), 5
… Top floor slab, 6… ground floor slab (bottom floor slab),
7: electromagnetic wave shield plate (electromagnetic wave shield member), 8: hakama-shaped electromagnetic wave shield member, 9: shielding plate.

Claims (2)

(57) [Claims] 1. An electromagnetic wave shielding building having a plurality of stories of a steel reinforced concrete structure in which columns are made of steel-framed reinforced concrete and beams are made of steel. An electromagnetic wave shield member is continuously attached to the indoor side surface or the outdoor side surface of the body, and a hakama-shaped electromagnetic wave shield member is attached to a column end portion penetrating the electromagnetic wave shield member so as to cover a range of a plurality of column diameters in the material axis direction of the column. A rectangular plate-shaped shielding plate larger than a beam cross section is attached to a beam end penetrating the electromagnetic wave shielding member, and the shield-shaped electromagnetic wave shielding member, the electromagnetic wave shielding member, and the shielding plate and the electromagnetic wave shielding member are electrically connected. An electromagnetic shielding building with a steel-framed reinforced concrete structure characterized by being joined to a building. 2. An electromagnetic shield building having a plurality of stories of a steel reinforced concrete structure in which columns are made of steel-framed reinforced concrete and beams are made of steel. The electromagnetic wave shielding member is attached to the indoor side surface or the outdoor side surface of the body, respectively, at the column end and the beam end penetrating the electromagnetic wave shielding member, respectively, in the material axis direction of the column, in the material axis direction of the beam, the column diameter and the beam. An electromagnetic wave shielding building having a steel-framed reinforced concrete structure, characterized in that a hakama-shaped electromagnetic wave shielding member that covers a range several times as large as that of the electromagnetic wave shielding member is attached, and the hakama-shaped electromagnetic wave shielding member is electrically connected to the electromagnetic wave shielding member.