JP3302554B2 - Formwork and exterior plate and exterior structure using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a formwork / exterior plate suitable for countermeasures against radio interference in a skyscraper and the like and an exterior structure of a building using the same.

[0002]

2. Description of the Related Art In addition to a radio wave (for example, a television wave) directly reaching a receiving point, it also reaches a receiving point by reflection from a skyscraper or the like. If there is a considerable time difference between the two radio waves to reach the receiving point, a reception failure such as a ghost that a double image appears on the screen occurs. For example, in the case of a ghost failure, the intensity of the reflected wave is generally reduced to 1/30 of the direct wave.
If you do the following, the obstacles will not be noticeable.

[0003] Such buildings (especially skyscrapers, etc.)
In recent years, various measures have been taken in order to reduce the reflection of radio waves by radio waves. For example, in a building exterior structure,
A magnetic material is arranged outside the mesh streaks, a formwork is provided outside the mesh streaks, these are built together by concrete casting, and the radio waves before transmitting to the mesh streaks are absorbed by the magnetic material,
It is as if the radio interference is reduced by attenuating the reflected wave.

[0004]

However, in the above-mentioned conventional exterior structure, there is a gap between the mesh streaks and the formwork.
The magnetic material must be disposed at a predetermined position, and the work of the mold is extremely complicated, and there is a problem that a great deal of labor is required. In addition, since concrete is cast in a state where the magnetic material is buried outside the mesh streaks, it is difficult to perform good casting, the strength of the exterior surface portion is reduced, and there is a possibility that problems such as peeling may occur. . The present invention has been made in view of the above circumstances, and has a radio wave interference prevention structure, eliminates complicated formwork work, and uses a formwork / outer plate capable of obtaining high outer strength and the same. An object of the present invention is to provide an exterior structure and improve workability and exterior strength.

[0005]

According to the present invention, there is provided a formwork / exterior plate according to the present invention, which is used as a formwork at the time of placing concrete and is used as a surface material as it is after hardening of concrete. An exterior plate, in which a plurality of fixing portions having a substantially T-shaped cross section including an upright portion and a flange portion perpendicular to the upright portion are formed in parallel on the concrete casting surface side of the molded substrate, and between the fixing portions. holding the edges of the ferrite in the left and right of the flange portion with disposing the in recess formed in the plate-like ferrite, the ferrite of the flange portion
With the surface facing the surface facing away from the ferrite
By forming the slope, between the flange and the ferrite
A concrete casting space having a substantially triangular cross section is formed. In addition, the formwork according to the present invention
In the configuration of the exterior structure using the mounting plate, the flange portion of the fixing portion is struck.
The formwork according to claim 1, which is buried in the concrete.
Characterized in that fixing the outer plate to pouring concrete
Things.

In the formwork / exterior plate, a fixing portion is formed on the concrete casting surface side of the molding substrate to form a space for accommodating ferrite, and at the same time, the fixing portion serves as a reinforcing rib, and the formwork / exterior plate is formed. Increase strength. In addition, by burying the fixing portion in concrete, it is possible to reliably fix the concrete. Furthermore, an inclined surface is formed on the flange,
And a casting space with a substantially triangular cross section was formed between
At the same time, holding of ferrite and fixing of formwork and exterior plate
Becomes possible. According to the exterior structure using the formwork / exterior plate according to the present invention, the formwork / exterior plate is used as the formwork, and after the concrete is cast, used as it is as the surface material of the building. Eliminating and dismantling work is eliminated. Also, the complicated work of disposing the ferrite in the mold is eliminated.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a formwork / exterior plate and an exterior structure using the same according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional view of a formwork / outer plate according to the present invention, and FIG. 2 is an enlarged view of a fixing unit. The mold frame / exterior plate 1 forms the molded substrate 1a as, for example, a rectangular fixed plate having a predetermined length and width. A convex portion 3 or a concave portion (not shown) for connecting the mold frame / outer plate 1 in a plane direction is formed on both side end surfaces of the molded substrate 1a.

On one surface of the molded substrate 1a, for example, a projecting fixing portion 5 is formed over the entire length in the longitudinal direction which is the longitudinal direction. As shown in FIG. 2, the fixing portion 5 includes a rising portion 5a standing on the plate surface, and a flange portion 5b extending from both upper ends of the rising portion 5a in parallel with the plate surface. That is, the fixing unit 5
The cross-sectional shape is substantially T-shaped. Note that the fixing portions 5 at both ends of the molded substrate 1a are formed in an inverted L-shape in which the fixing portion 5 at the center is divided in half.

[0009] A plurality of fixing units 5 are provided in parallel with the vertical pieces of the molded substrate 1a. Therefore, between the fixing portions 5, the concave portion 7 whose opening portion is narrow and the groove bottom is wide due to the flange portion 5b.
Becomes A long plate-shaped magnetic material (ferrite or the like) 9 that is long in the longitudinal direction of the molded substrate 1a is fitted into each of the concave portions 7. The ferrite 9 has two edges in the longitudinal direction as shown in FIG.
As is clear from the figure , the support is held in the concave portion 7 by pressing with the bases of the left and right flanges 5b . In addition, the falling off of the ferrite 9 in the longitudinal direction is regulated by an adhesive or a screw.

The flange 5b of the fixing section 5 has a surface facing the ferrite 9 formed by an inclined surface 10 which is separated from the ferrite 9 toward the tip. Therefore, the flange portion 5b holds the ferrite 9 at the base portion, and forms a casting space 11 having a substantially triangular cross section between itself and the ferrite 9. That is, constant
The attachment portion 5 is formed by forming a flange portion 5b having an inclined surface 10 into an upright portion 5a.
By providing at the upper end, the holding space for ferrite 9 (see FIG. 2)
And the casting space 11 are simultaneously formed in the recess 7.
Has formed.

The molded substrate 1a can be manufactured as an extruded cement plate extruded by a predetermined length from the die by feeding the cement kneading material to the die having such a cross-sectional shape.

Next, the mold and outer plate 1 thus formed
The exterior structure of, for example, a pillar portion using the above will be described. FIG. 3 is a cross-sectional view of an exterior structure of a pillar portion using a mold and an exterior plate. On the outer periphery of the plurality of pillar main reinforcements 13 arranged in the vertical direction,
A ligament (hoop) 15 is provided. The hoop muscles 15 are arranged at predetermined intervals in the longitudinal direction of the main muscles 13. Further, the hoop streaks 15 may have a strip shape other than the wire rod.

The above-mentioned formwork / outer panel 1 is disposed outside the hoop 15 with a predetermined concrete casting space therebetween. The formwork / exterior plate 1 is formed in a shape corresponding to the pillar surface, and is connected by fitting through the above-mentioned convex portion 3 and concave portion 17. That is, the formwork / exterior plate 1 is assembled as a normal formwork surrounding the inner reinforcing bars 13 and 15. The outer side of the formwork / exterior plate 1 assembled in this manner is supported by a flap material or the like (not shown).

A concrete 19 is cast inside the assembled formwork / outer panel 1. The cast concrete 19 flows into the casting space 11 of the fixing unit 5 on the inner surface of the formwork and exterior plate 1, and buries each fixing unit 5.
That is, the fixing portion 5 is integrated with the concrete 19 with high strength in a state where the flange portion 5b is embedded in the concrete 19.

A building having such an exterior structure (particularly,
In a skyscraper, etc., a radio wave transmitted through the exterior part and intended to be reflected by the hoop streak 15 is absorbed by the ferrite 9 immediately before the hoop streak 15 and is not reflected as a reflected wave from the building outer surface. . As a result, multiple propagation of radio waves by the building is reduced.

The ferrite 9 absorbs a radio wave that is to be transmitted in front of the hoop muscle 15 and also
The reflected wave that has passed through the gap between the two and is reflected by the hoop muscle 15 is also absorbed on the back surface side, and the reflected wave is reliably absorbed.

As described above, according to the above-described formwork / outer plate 1, a plurality of fixing portions 5 are arranged in parallel on one surface.
The concave portion 7 which is a storage space for the ferrite 9 can be formed, and the fixing portion 5 also functions as a reinforcing rib.
The strength of the mold and exterior plate 1 can also be increased. And
An inclined surface 10 is formed in the flange portion 5b of the fixing portion 5, and a casting space 11 is formed between the flange portion 5b and the ferrite 9. Therefore, the fixing portion 5 is cast by casting concrete 19 in the casting space 11. It can be reliably buried in the concrete 19 and the fixing strength can be increased. As a result, peeling of the surface can be reliably prevented.

In addition, in the exterior structure using the formwork / exterior panel 1, the formwork / exterior board 1 is used as a formwork, and is used as it is as a building surface material without being removed after the concrete 19 is cast. As a result, the work of building and dismantling the formwork can be eliminated. In addition, since the ferrite 9 is integrally formed with the mold and the exterior plate 1, a complicated work of disposing the ferrite 9 in the conventional mold can be eliminated.

In the above-described embodiment, the mold and exterior plate 1 is used for the exterior structure of the pillar portion. However, the form and exterior plate 1 may be connected to a plurality of other members in the surface direction. Of course, it can be used for the wall.

[0020]

As described above in detail, according to the formwork / exterior plate of the present invention, the fixing portion is arranged in parallel on the concrete casting surface side of the molded substrate, so that the space for accommodating ferrite is reduced. In addition to being formed, the fixing portion serves as a reinforcing rib, so that the strength of the formwork / outer plate can be increased.
Since the casting space is formed between the fixing portion and the ferrite, the fixing portion can be buried in concrete without fail, and the separation of the surface can be reliably prevented. If an inclined surface is formed on the flange to form a substantially triangular cross section between the ferrite and the ferrite, the ferrite can be held and the mold and the exterior plate can be fixed at the same time. According to the exterior structure using the formwork / exterior plate according to the present invention, the formwork / exterior plate can be used as a formwork, and after casting concrete, it can be used as it is as a building surface material. The construction work and the dismantling work can be eliminated, and the complicated work of disposing the ferrite in the formwork can be eliminated.

[Brief description of the drawings]

FIG. 1 is a sectional view of a formwork / outer plate according to the present invention.

FIG. 2 is an enlarged view of a fixing unit.

FIG. 3 is a cross-sectional view of an exterior structure of a pillar portion using a mold and an exterior plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Formwork and exterior plate 1a Molded substrate 5 Fixing part 5a Standing part 5b Flange part 7 Concave part 9 Ferrite 10 Inclined surface 11 Casting space

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04B 2/86 601 E04B 1/16 E04B 1/92

Claims (2)

(57) [Claims] 1. A formwork / exterior plate that is used as a formwork during concrete casting and is used as a surface material as it is after hardening of the concrete. A plurality of fixing portions having a substantially T-shaped cross section formed by a flange portion are formed in parallel, a plate-like ferrite is disposed in a concave portion formed between the fixing portions, and both edges of the ferrite are left and right. held by the flange portion, off toward the distal end of the surface opposite to the ferrite of the flange portion
Formed with an inclined surface away from the ferrite
A formwork / exterior plate wherein a concrete casting space having a substantially triangular cross section is formed between the ferrite and the ferrite . 2. The fixing part is formed by placing a flange portion on cast concrete.
The mold and exterior plate according to claim 1 is buried by being buried.
Pillar or wall exterior structure fixed to cleats
Build.