JPH0514424U - Electromagnetic wave shield structure for column / beam joints - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an electromagnetic wave shield structure for a column / beam joint that can completely shield harmful electromagnetic waves at the column / beam joint. [Structure] The outer circumferences of the inner pillar 2 end that penetrates the roof floor slab 5 and the ground floor slab 6 and the end of the beam 3 that penetrates the outer wall 4 cover a range of multiple column diameters and multiple beam formations, respectively. The hakama-shaped electromagnetic wave shield member 8 is attached, and the hakama-shaped electromagnetic wave shield member 8 and the electromagnetic wave shield member 7 attached to the surface of the roof floor slab 5, the ground floor slab 6 and the outer wall 4 are electrically joined.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention mainly relates to an electromagnetic wave shield structure of a column / beam joint in an electromagnetic wave shield building of a steel frame rebar concrete structure (hereinafter, simply referred to as SRC).

[0002]

[Prior Art]

 In recent years, office buildings have SRC structures such as pillars and beams to cope with the increase in the number of buildings, and electromagnetic wave shield structures on all or some of the floors of buildings due to the spread of computers and OA equipment. There are many.

In addition, as an electromagnetic wave shield building of this type, a building having a so-called inner shield structure and a slab and a wall body configured by mounting the shield member inside the slab and the wall body by a method of mounting the shield member A building having a so-called outer shield structure, which is configured by attaching a shield member to the outside of the building, is generally known.

[0004]

[Problems to be solved by the device]

 In either structure type, electromagnetic waves can be almost completely shielded at the central part of the slab and wall, but at the joint between the pillar and the beam, one of the pillar and the beam is attached to the wall or ceiling. Since it penetrates the shield member, the electromagnetic wave shields at the column end and the beam end are generally troublesome. For this reason, if the electromagnetic shield at the end of the column and the beam end is incomplete, electromagnetic waves may pass through the shield member from the periphery of the column and the end of the beam. There is a problem that electromagnetic waves cannot be completely shielded because the beam ends may pass through as a conductor.

In addition, in the case where a multi-story SRC structure building is made to have an electromagnetic wave shield structure by the above-mentioned method, it is better to perform a plurality of floors or all floors of the building integrally than to perform a shield member for each room. It is very economical because it reduces the installation area of the shield and the amount of shield member used, and it is also extremely advantageous because it simplifies the construction and greatly shortens the construction period. Since electromagnetic shielding is difficult for the above reasons, it is the situation at present that construction is done in each room.Even if multiple floors or all floors of a building have an electromagnetic shielding structure, electromagnetic shielding is required. It was almost impossible to completely shield the.

The present invention has been proposed to solve the above-mentioned conventional problems, and can completely shield harmful electromagnetic waves at the column-beam joints, thereby making it possible to prevent multi-story portions or the entire building. It is an object of the present invention to provide an electromagnetic wave shield structure for a column / beam joint that can make the floor a complete electromagnetic wave shield structure.

[0007]

[Means for Solving the Problems]

 In the electromagnetic wave shield structure of the column-beam joint according to the present invention, the column end that penetrates the slab and the beam end that penetrates the wall have a range of multiples of the column diameter and beam formation of each outer peripheral part. The above-mentioned object is achieved by attaching a hakama-shaped electromagnetic wave shield member covering the above and electrically connecting the hakama-shaped electromagnetic wave shield member and the electromagnetic wave shield member attached to the surfaces of the slab and the wall body.

[0008]

【Example】

 FIG. 1 is a multi-storey building made of steel-reinforced concrete, showing one embodiment of the present invention. In the figure, side columns 1 (columns on the outer periphery of the building) and inner columns 2 (building) of each floor are shown. The pillars located inside the outer periphery of) and the beams 3 on each floor are made of steel-reinforced concrete.

In addition, the inner surface of the outer wall 4 of each floor, the ceiling surface of the roof slab 5 and the floor surface of the ground floor slab 6 are electromagnetic waves made of a highly conductive metal plate such as a copper plate, a copper foil, or a zinc iron plate. The shield plate 7 is continuously attached to the structure, whereby the entire building has an electromagnetic shield structure (inner shield), which can shield harmful radio waves entering from the outside and harmful radio waves leaking from the inside of the building.

On 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 side pillar 1 side end of the beam 3 on each floor, a metal plate of the same quality as the electromagnetic wave shield plate 7 is formed on the outer peripheral portion of the end. The hakama-shaped electromagnetic wave shield member 8 made of is attached.

The hakama-shaped electromagnetic wave shield 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 from the column end portion and the beam end portion, respectively.

The hakama-shaped electromagnetic wave shield member 8 at the end of the inner pillar 2 is electrically connected to the electromagnetic wave shield plate 7 attached to the ceiling surface of the roof slab 5 and the floor surface of the ground floor slab 6 by welding or soldering. The hakama-shaped electromagnetic shield member 8 at the end of the beam 3 on each floor is electrically connected to the electromagnetic wave shield plate 7 attached to the inner surface of the outer wall 4 by welding or soldering. ing.

In this manner, the hakama-shaped electromagnetic wave shield member 8 is attached to the outer peripheral portions of the inner column 2 end portion and the beam 3 end portion that penetrate the electromagnetic wave shield plate 7 and by welding or soldering with the electromagnetic wave shield plate 7. Due to the electrical connection, harmful electromagnetic waves that try to pass through the electromagnetic wave shield plate 7 from the periphery of the ends of the inner column 2 and the beam 3 are attenuated when they pass through the hakama-shaped electromagnetic wave shield member 8. And shielded.

In such a case, the longer the hakama-shaped electromagnetic wave shield member 8 is, the more completely the passage of electromagnetic waves can be shielded. .

The reason why the hakama-shaped electromagnetic wave shield member 8 can shield an electromagnetic wave is the same as the reason why a car radio or the like cannot be heard at all in a tunnel.

FIG. 2 shows a building with a so-called outer shield structure. In the same building with a steel frame reinforced concrete structure as in FIG. 1, the outer surface of the outer wall 4, the upper surface of the roof slab 5 and the ground are formed. The electromagnetic wave shield plate 7 is continuously attached to the floor surface of the floor slab 6, so that the entire building has an electromagnetic wave shield structure.

A hakama-shaped electromagnetic shield member 8 is attached to the outer peripheral portions of the lower ends of the side pillars 1 and the inner pillars 2 on the ground floor, and is welded or welded to an electromagnetic wave shield plate 7 attached to the floor surface. It is electrically joined by soldering.

As described above, the electromagnetic shielding of the column end and the beam end penetrating the electromagnetic wave shield plate 7 can be easily performed, so that only a part of the floors or a part of the plurality of floors is covered. A multi-storey building with an integrated electromagnetic wave shield can be easily constructed.

[0019]

[Effect of the device]

 Since the present invention is configured as described above, it has the following effects.

At the column end and the beam end that penetrate the electromagnetic wave shield member attached to the slab and the wall, while attaching the hakama-shaped electromagnetic wave shield member to the column end and the outer periphery of the beam end, By electrically connecting to the electromagnetic wave shield member attached to the slab and the wall body by welding, etc., the column end and the periphery of the beam end, and further the column end and the beam end themselves are used as a conductor. It can completely block harmful electromagnetic waves that try to pass through.

Further, since it is possible to completely shield the electromagnetic waves at the column-beam joints, it is possible to completely shield the entire floor of the building, a part of the floors, or a part of a plurality of floors from the electromagnetic wave shield. An electromagnetic wave shield building with a structure can also be easily constructed, and because of this, the installation area of shield members is small and the amount of shield members used can be greatly reduced, enabling economical construction. In addition, the construction can be simplified and the construction period can be greatly shortened.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of an electromagnetic wave shield building having an inner shield structure in an SRC structure showing an embodiment of the present invention.

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

FIG. 3 is an enlarged cross-sectional view of a pillar / beam joint.

FIG. 4 is a sectional view taken along the line aa in FIG. 3, showing a column / beam joint.

[Explanation of symbols]

1 ... Side columns (columns on the outer periphery of the building), 2 ... Inner columns (columns inside the outer periphery of the building), 3 ... Beams, 4 ... Outer walls (walls), 5
... Rooftop slab (slab), 6 ... Ground floor slab (slab), 7 ... Electromagnetic wave shield plate, 8 ... Hakama-shaped electromagnetic wave shield member.

[Procedure amendment]

[Submission date] August 16, 1991

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

Claims (1)

[Scope of utility model registration request] 1. A hakama-shaped electromagnetic wave shield member on the outer peripheral portion of a column end portion penetrating a slab and a beam end portion penetrating a wall body so as to cover a plurality of ranges of column diameter and beam formation of each outer peripheral portion. And a column characterized by electrically connecting the hakama-shaped electromagnetic wave shield member and the electromagnetic wave shield member attached to the surfaces of the slab and the wall body.
Electromagnetic wave shield structure at beam joint.