JP3166088B2 - Curtain wall cubicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for installing a non-bearing wall, that is, a curtain wall, on an outer wall of a building.

[0002]

2. Description of the Related Art In mounting a glass curtain wall having a high opening height, an aluminum sash as a mounting member is required to have high strength enough to withstand external forces such as wind pressure and earthquake. For this reason, a stairwell on the first to third floors,
In large-scale glass atriums and high rises,
A fairly large structural cubic is required.

For example, as shown in FIG. 2, on a high atrium floor where a large plain glass curtain wall 2 having a height of 9 m is mounted, if a sufficient strength against wind pressure and earthquake is to be secured, the mounting member is required. It is necessary to considerably increase the strength of the cubic 1 which is also a reinforcing member, and it is necessary to adopt a cubic having a complicated structure such as a pipe truss structure or a cross-column structure as shown in FIG. Become.

[0004]

However, in the case of a pipe truss structure or a cross-column structure, the size of the truss becomes larger than imagined, and there is a problem that the image of the inside is impaired. In addition, when the size is increased, the weight becomes extremely heavy. Therefore, the stress receiving column 1A on the reference floor to which it is attached is also increased in size, which imposes great restrictions on the design and makes it impossible to effectively use the space. There were also problems, and the solution of these points was an issue.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior art, and has an elongated structural member having flat plate portions orthogonal to each other, and a longitudinal member of the structural member. Two flat plate members disposed at both ends in the direction, and attached to the two flat plate members without being partially embedded in the structural member to apply a compressive prestress to the structural member. The object of the present invention is to provide a curtain wall ward characterized by including a tension member, and to solve the above-mentioned problems of the prior art.

[0006]

[Function] Due to the pre-stress of compression imparted by the tendon, the strength of the cubic material in the vertical direction is greatly increased and it is difficult to bend. Therefore, even if the cross-sectional area is greatly reduced and the size is reduced, it is mounted. It is possible to respond to the wind pressure received by the curtain wall and the shaking of the earthquake with a margin.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A mounting 1 has a mounting plate 12 fixed to both ends of a T-shaped steel 11 having a shape that is hardly bent by welding or the like.
In this configuration, two PC steel wires (for example, seven stranded wires; diameter: 10.8 mm) 13 are attached as tension members between two attachment plates 12.

The PC steel wire 13 is attached to the attachment plate 12 in a state where the PC steel wire 13 is stretched in the longitudinal direction so that a compressive prestress is applied in the longitudinal direction of the T-shaped steel 11. Have been.

The two PC steel wires 13 are arranged on both sides of the standing plate 111 in the same number, in this case one by one, so that symmetrical compressive stress is applied to the T-shaped steel 11.

[0010] The cubic 1 having the above-described configuration is installed on a desired atrium floor or the like. In addition to the weight of the slab 1 and the weight of the curtain wall 2 attached to the slab 1, the stress receiving column 1A on the upper reference floor can sufficiently withstand the curtain wall 2 when subjected to strong wind pressure or the like. It is securely fixed by welding or bolts. On the other hand, the lower end of the cubic 1 is not affected by the weight of the cubic 1 or the curtain wall 2 and may be simply fixed to a strength that can withstand external force such as wind pressure. A relatively simple locking structure can also be used.

The curtain wall 2 is attached to the fixed screen 1 using the metal fastener 3 and the connecting means 4 such as a metal screen sash. The T-shaped steel 11 of the cubic 1 is given a prestress of compression by the PC steel wire 13 as described above, so that the strength in the up-down direction is greatly improved and it is extremely difficult to bend. Even if it receives a large wind pressure such as a typhoon or a roll due to an earthquake, the deflection is suppressed to the minimum and the safety is extremely high.

As described above, the first aspect of the present invention is the PC 1
Since the cross-sectional area can be reduced by the prestress given by the steel wire 13, the size can be significantly reduced, and since there is much room for devising the shape, even if it is arranged in a place where it can be seen, I have never said that it would detract from the introspective image. It is also possible to reduce the size as much as possible and make it invisible by other objects.

For example, when a piano wire having a tensile strength of 300 Kgf / mm ² or more is used for the PC steel wire 13 as a tendon, the T-shaped steel 11 has a tensile strength of 20 kgf / mm used for an aluminum sash or the like. ^{When using about 2} corrosion-resistant aluminum alloys, iron (mild steel, 50HT steel, 60H
Even when T steel or the like is used, the effective cross-sectional area can be significantly reduced, so that the size of the cubic 1 can be significantly reduced, and there is room for devising the design as described above. .

Since the method 1 of the present invention is not limited to the above embodiment, various modifications can be made in accordance with the gist of the claims. Steel wire 13 has a larger diameter and is generally PC
What is called a steel bar may be used, and T-shaped steel 1
Instead of 1, the H-shaped steel shown in FIG. 4 and the C-shaped channel structure shown in FIG. 5 can be used as appropriate while considering the overall design.

[0015]

As described above, the present invention is a curtain wall cubic which is given a compressive pre-stress by the tendon material, greatly improves the strength in the vertical direction, and is extremely hard to be bent. Even if the vehicle is subjected to a large wind pressure or rolls due to an earthquake, the deflection is minimized and the safety is extremely high.

Further, since the cross-sectional area can be reduced by the amount of prestress given by the tendon, it is possible to significantly reduce the size, and there is room for reducing the size and devising the shape. Even if it is in a place where it touches, it does not detract from the introspective image, and it is possible to make it as small as possible and hide it with other objects.

In addition, since the material is saved and the weight is reduced in the miniaturized cubicle, the cubic column for stress receiving installed on the upper reference floor can be miniaturized, and the space can be used more effectively. There is also a merit that you can do it.

Furthermore, there is a merit that there is no limitation on the type of curtain wall to be attached, and a remarkable effect can be obtained when the curtain wall is installed in the atrium structure, which has been increasing in recent years.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of one embodiment.

FIG. 2 is an explanatory diagram showing an installation point of a curtain wall.

FIG. 3 is a sectional view taken along line AA in FIG. 2;

FIG. 4 is an explanatory view showing another example of the orientation.

FIG. 5 is an explanatory view showing another example of the orientation.

FIG. 6 is an explanatory diagram showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pillar 1A Column which receives stress 11 T-shaped steel 12 Mounting plate 13 PC steel wire 2 Curtain wall 3 Fastener 4 Connecting means

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04B 2/96 E04C 5/08 E04C 3/10 E04C 3/32

Claims (1)

(57) [Claims] 1. A structural member formed to have an elongated shape having flat plate portions orthogonal to each other, two flat plate members disposed at both ends in the longitudinal direction of the structural member, and a part of the structural member is also embedded. And a tension member attached to the two flat plate members without applying pressure and applying a compressive prestress to the structural member.