JPH08177148A - Curtain wall large unit construction method - Google Patents

Abstract

(57) [Summary] [Purpose] The curtain wall will not be damaged when it is lifted, work at high places can be significantly reduced, and a reinforcement unit and a curtain wall can be made into a large unit in the ground yard. It is to provide a construction method that can improve the efficiency and safety of the mounting work and the curtain wall mounting work. [Structure] A step of supporting the beam, a step of applying a temporary load to the beam, which is the same as a load applied at the time of main installation, and a deformation equivalent to the bending at the time of main installation, and attaching a curtain wall and a reinforcing material, As a result, the temporary load is reduced by the weight of the curtain wall and the reinforcing material, so that the curtain wall is made into a large unit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a curtain wall constituting an outer wall of a high-rise building into a large unit.

[0002]

BACKGROUND OF THE INVENTION In recent years, a curtain wall constructed so as to cope with interlayer displacement and face-to-face displacement is often used as an outer wall material of a high-rise building. The curtain wall is attached to a building frame as follows. Is done in this way. That is, first, the beams and studs are directly attached to the building frame, and at the same time, the aluminum frame of the curtain wall is connected at the ground yard to form a large unit. Next, the unitized aluminum frame is hung by a crane and joined to the beams and studs that were previously installed. Then, the glass is fitted into the aluminum frame to complete the curtain wall.

By the way, since the above-mentioned construction method involves a lot of work in high places, there is a problem that safety and work efficiency are low. In particular, in a high-rise building with an atrium (atrium space), when installing a glass curtain wall on the outer wall of the atrium, work to fit the glass into the aluminum frame and to correct the dimensional error between the curtain wall and the steel frame are performed. , I had to set up a scaffold in the atrium part, which was very troublesome.

Therefore, it has also been proposed to assemble a steel frame in a ground yard on the ground in advance and attach a curtain wall in which glass is fitted to form a large unit. However, in this method, the beam is bent due to the weight of the curtain wall when the unit is lifted, so
There is a drawback that the aluminum frame is deformed and the inserted glass is damaged.

[0005]

DISCLOSURE OF THE INVENTION The object of the present invention is to prevent the curtain wall from being damaged when hoisting, to significantly reduce the work at high places, and also to make a large unit of the reinforcing material and the curtain wall in the ground yard. , It is to provide a construction method that can improve the efficiency and safety of steel frame mounting work and curtain wall mounting work.

An object of the present invention is to support a beam, to apply a temporary load to the beam which is the same as a load applied during the main installation, and to deform the beam so that the beam has a bending equivalent to that during the main installation. The step of attaching a wall and a reinforcing material, whereby the provisional load is reduced by the weight of the curtain wall and the reinforcing material, is achieved by a large unit construction method of the curtain wall.

In particular, the first step of suspending the beam on a pedestal provided in the ground yard and supporting it in the same state as at the time of permanent installation,
The second step of attaching studs to the beam at a predetermined interval and installing horizontal braces between the lower ends of the studs, and applying the same temporary load as the load that is applied to the beam at the time of main installation, and the same as at the time of main installation A third step of deforming so that
A fourth step in which the temporary load is reduced by the weight of the curtain wall and the reinforcing material by attaching the curtain wall and the reinforcing material via a fastener between the studs; and the fourth step. It is achieved by a large-scale unitized construction method of the curtain wall, which is characterized by repeating the above steps as needed.

That is, according to the present invention, a temporary load is applied to the beam to bend it to the same extent as at the time of permanent installation, and in this state, the curtain wall and the reinforcing material are attached, and the weight of the attached curtain wall or the like is temporarily attached. Since the load is reduced and the deflection is finally adjusted to be the same as that at the time of permanent installation, the reaction force due to the deflection of the truss beam and the load applied to the truss beam are always balanced, and the unit The truss beam does not bend further when it is lifted from the frame, and the aluminum frame of the attached curtain wall does not deform and the fitted glass is not damaged.

Therefore, the curtain wall can be used as a large unit on the ground, and the work efficiency can be improved because the glass fitting and sealing work and the dimensional error correction between the steel frame and the curtain wall can be performed on the ground. Then
Further, since work at high places can be omitted that much, high safety can be obtained. Further, since it is a simple repetitive work, the work can be easily performed even if the skill level is low.

[0010] In the above-mentioned method for making the curtain wall into a large unit, it is preferable to provide a temporary scaffold used for connecting the curtain wall units and the stud steel frames on the beam so that the unit can be immediately hung after the unit is hung. You can connect each other. Further, the temporary load for deforming the beam can be applied to the beam by pulling the other end of the wire having one end hooked to the beam downward, but any other method may be used.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 7 show an embodiment of a method for converting a curtain wall into a large unit according to the present invention. FIG. 1 is a front view showing a state in which a truss beam is suspended on a mount, and FIG. Is a front view showing a state where a stud is attached to a truss beam, FIG. 3 is a front view showing a state where a temporary load is applied to the truss beam, and FIG. 4 is a front view showing a state where one layer of curtain wall is attached to the stud. 5 is a front view showing a state where the curtain wall is completely attached, FIG. 6 is a front view showing a state where the work scaffold is attached on the truss beam, and FIG. 7 is a front view showing a lifting work of the curtain wall unit. is there.

In this embodiment, a pillar 2 for supporting both ends of the truss beam 1 and a pillar for supporting the studs 3 attached to the truss beam 1 are installed in the ground yard before the curtain wall is made into a large unit. A receiver 4 is provided. The column receiver 4 is configured to be expandable / contractible by the amount of bending of the truss beam 1 by a vertical load. After the gantry 2 is completed, the truss beam 1 is hung on the gantry 2 as shown in FIG. 1 and is supported in the same state as that at the time of permanent installation. The truss beam 1 is preliminarily provided with the stigma 3a of the stud 3 to be attached in the next step.

Then, as shown in FIG.
Four studs 3 are attached at equal intervals, and a cane 5 is joined to reinforce. After adjusting the distance between the studs 3, a reinforcing horizontal brace 6 is attached between the lower ends of the studs 3. When the steel frame is assembled in this manner, the wires 7 are stretched between two points near the center of the truss beam 1 and the two jacks 8 installed on the ground, as shown in FIG. Then, by operating the jack 8 to apply tension to the wire 7,
A temporary load is applied to the truss beam 1 so that the curtain wall is deformed so as to be equal to the state in which all the curtain walls are attached.

When the truss beam 1 is bent, the studs 3
A fastener (not shown) for three layers of the curtain wall is attached to the curtain wall, and the curtain wall 9 in which glass is fitted between the studs 3 is attached using the fastener as shown in FIG. At this time, the tension of the wire 7 is reduced by the amount of the attached load, that is, the temporary load is reduced.
Thereafter, the curtain wall 9 is attached in the same manner, and the steel frame composed of the truss beam 1 and the studs 3 and the curtain wall 9 are attached.
Correct the dimensional error with
Install 3 layers on top and bottom.

Then, as shown in FIG. 5, after the attachment of the curtain wall 9 is completed, the wire 7 is removed, and the temporary load is completely unloaded so that the truss beam 1 is in a naturally bent state. Regarding the unavoidable dimensional error, the size of the next large unit is adjusted according to the error size of the large unit that has been attached, and this error size is absorbed.

After this, as shown in FIG. 6, a scaffold 10 for unit connection work is attached on the truss beam 1, and the curtain wall 9 is completed as a large unit. The hanging jig 11 is attached to the curtain wall unit thus obtained, and as shown in FIG. 7, the hanging jig 11 is hung at a predetermined position in the building while being hung by the hanging beam 12. And
In the curtain wall unit, the truss beam 1 is connected to the building frame via a guide (for simplification of positioning and prevention of tipping), and the lower end of the stud 3 is connected to the lower curtain wall unit so that the curtain wall unit is in a fixed position. Fixed.

As described above, according to the present invention, the curtain wall is attached in a state where the truss beam is bent in the same manner as when the truss beam is permanently installed. Therefore, the reaction force due to the bending of the truss beam and the load applied to the truss beam are always present. And are in balance. Therefore, when the unit is hoisted from the frame, the truss beam will not bend further than it was before hoisting, the aluminum frame of the curtain wall attached will not be deformed, and the glass fitted into it will be damaged. Does not occur.

Therefore, it is possible to make the curtain wall and the reinforcing steel frame into a large unit on the ground, and to insert the glass,
Since the work of correcting the dimensional error between the steel frame and the curtain wall can be done on the ground, work efficiency is improved, and work at high places can be omitted, which is highly safe. In particular, when the present invention is used when constructing a high-rise building having an atrium, there is no need to build a scaffold on the atrium, which is very effective in reducing costs and shortening the construction period.

[0019]

[Effect] According to the present invention, it is possible to prevent the curtain wall from being damaged when the unit is hoisted, and it is possible to make the curtain wall into a large unit in the ground yard, and to improve the efficiency of the curtain wall mounting work to the building frame. Safety can be improved.

[Brief description of drawings]

FIG. 1 is a front view showing a state in which a truss beam is suspended on a pedestal.

FIG. 2 is a front view showing a state in which a stud is attached to a truss beam.

FIG. 3 is a front view showing a state in which a temporary load is applied to the truss beam.

FIG. 4 is a front view showing a state in which one layer of curtain wall is attached to a stud.

FIG. 5 is a front view showing a state where the attachment of the curtain wall is completed.

FIG. 6 is a front view showing a state in which a work scaffold is attached on a truss beam.

FIG. 7 is a front view showing a lifting operation of the curtain wall unit.

[Explanation of symbols] 1 truss beam 2 gantry 3 studs 4 pillar receivers 5 canes 6 horizontal braces 7 wires 8 jacks 9 curtain walls 10 scaffolds

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ryo Nakaya 1-25-1 Nishishinjuku, Shinjuku-ku, Tokyo Within Taisei Corporation (72) Inventor Katsunori Terao 1-25-25 Nishishinjuku, Shinjuku-ku, Tokyo No. 1 within Taisei Corporation (72) Inventor Masahiro Inoue 8-21-21 Ginza, Chuo-ku, Tokyo Stock company Takenaka Corporation Tokyo Main Store (72) Inventor Seiji Asai 8-21 Ginza, Chuo-ku, Tokyo No. 1 Stock Company Takenaka Corporation Tokyo Main Store (72) Inventor Michio Kurato 2-1-1 Nishi Shinjuku, Shinjuku-ku, Tokyo 2-1-1 Nippon Design Co., Ltd. (72) Inventor Soma Umi, Nishi-shinjuku 2 -1-1 Nippon Design Co., Ltd. (72) Tatsuya Sanshio 2-1-1 Nishishinjuku, Shinjuku-ku, Tokyo 2-1-1 Nihon Design Co., Ltd.

Claims (4)

[Claims] 1. A step of supporting a beam, a step of applying a temporary load to the beam, which is the same as a load applied at the time of main installation, and deforming the beam so that the beam has a bending equivalent to that at the time of main installation, and a curtain wall and a reinforcing material. The step of installing the curtain wall and the reinforcing material, whereby the temporary load is reduced by the weight of the curtain wall and the reinforcing material. 2. A first step of suspending a beam on a pedestal provided in an assembly yard and supporting the beam in the same state as at the time of permanent installation, and attaching studs to the beam at predetermined intervals, and lower ends of the studs. A second step of attaching a horizontal brace between the parts, a third step of applying a temporary load to the beam that is the same as the load applied during the main installation, and deforming the beam so that the beam has a bending equivalent to that during the main installation; The fourth step is required, in which the curtain wall and the reinforcing material are attached via a fastener between them, and the provisional load is reduced by the weight of the curtain wall and the reinforcing material. A large unit construction method for curtain walls, which is repeated according to 3. The method for constructing a large curtain wall unit according to claim 1 or 2, wherein a temporary scaffold used for connecting the curtain wall units to each other and the stud steel frames to each other is provided on the beam. 4. A temporary load for deforming a beam is applied to the beam by pulling the other end of a wire whose one end is hooked on the beam downward. The method for converting a curtain wall into a large unit according to any one.