JP2582020B2 - Installation method of safety rope in steel frame construction - 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 of installing a safety rope in a steel-frame construction of a pure steel-framed high-rise building.

[0002]

2. Description of the Related Art Generally, in a steel-framed high-rise building, as shown in FIG. 5, a steel column 1 is added in the middle of the floor, and the top of the built-in steel column 1 is approximately above the floor. It stands up to about 1.2m.

[0003] Accordingly, the rising portion of the steel column 1 can be used to hang a safety rope 2 called a parent rope on the uppermost portion. For example, the hook 3 is welded to a steel flange as shown in FIG. The safety rope 2 is connected to this. 4 is a steel beam in the figure.

[0004]

In the case where a steel box column is used as a steel column and an on-site weld joint is formed at the upper end of the beam,
Since the top of each pillar is the upper end of the beam, there is no member for securing the safety rope, and it is impossible to secure the safety rope using the rising portion of the steel column as in the related art. Therefore, there was no established method of installing a safety rope in such a case.

[0005] An object of the present invention is to solve the above-mentioned disadvantages of the prior art, and to easily and surely install a safety rope even when the top of each pillar is the upper end of the beam. An object of the present invention is to provide a method of installing a safety rope in a steel-frame construction, which can be added to a steel column on an upper floor without removing the same, without trouble.

[0006]

According to the present invention, in order to achieve the above object, a metal safety rope support is provided at a position corresponding to the inside of the hollow of the steel column on the upper surface of the diaphragm on which the field weld joint of the steel column is provided. When starting up, the safety ropes are laid between the columns, and when the steel columns on the upper floor are to be added, the safety rope columns should be taken into the lower end cavity.

[0007]

According to the present invention, even when the uppermost part of each node is the upper end of the beam, the metal safety rope support stands up from the upper surface of the diaphragm, so that the safety rope can be stretched using this support. it can.

In addition, since the tobiko can climb the top of the pillar while holding on to the safety rope pillar, the steel frame can be constructed more safely and efficiently.

Further, when a steel column on the upper floor is to be added, the safety rope column is taken into the lower end cavity, so there is no need to remove the column.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a front view of a main part of a method of installing a safety rope in a steel frame according to the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a front view of the whole.

In the figure, reference numeral 5 denotes a steel column having a box-shaped hollow interior, and a horizontal diaphragm 7 is provided at a position corresponding to the upper and lower flanges of the steel beam 6 to be joined at the upper end of the floor where the field welding joint is provided. .

The present invention provides a steel safety rope support 8 on the upper end of such a steel column 5, that is, on the upper surface of the diaphragm 7.
Start up. The column 8 is made of steel such as an angle steel, a channel steel, an H-shaped steel, a steel pipe, or the like, and is attached by welding or high-strength bolting at a factory. The support 8 may be made of an aluminum alloy other than steel.

The position where the support column 8 is raised is selected to be inside the steel column 5 so as to correspond to the inside of the cavity of the steel column 5.

After the construction of the uppermost steel beam 6 (large beam) of the lower steel frame is completed, a safety rope 9 is fixed to the column 8. The steeple can climb the top of the pillar while holding on to this safety rope pole 8.

There are various ways to stop the safety rope 9. As an example, as shown in FIG. 4, a through hole is provided in the support 8, an eyebolt 10 is attached, and the end of the safety rope 9 is attached to the eyebolt 10 via a shackle 11. Satsumasa 12 provided in the section
To combine.

In this way, the twist of the safety rope 9 can be dealt with, and the safety rope 9 can be quickly and easily connected. As another method, the support 8
The safety rope 9 may be tied to the hook, or the safety rope 9 may be directly wound around the support 8 to be tied.

The safety rope 9 is used as a safety facility for preventing a fall when installing beams, deck plates, etc., because it also serves as a safety facility for the construction of girders and small beams on the floor where the columns are provided. When finished, remove the safety rope 9.

After that, when the steel columns on the upper floor are constructed, the safety rope posts 8 are taken into the lower end cavity when the steel columns 5 on the upper floor are added.

[0019]

As described above, the method of installing a safety rope in a steel frame according to the present invention makes it possible to easily and surely install a safety rope even when the top of a column at each node is the upper end of a beam. Also, the pillars to be installed can be added to the steel columns on the upper floor without removing the pillars, so that it is not troublesome.

[Brief description of the drawings]

FIG. 1 is a front view of a main part of a method of installing a safety rope in a steel frame according to the present invention.

FIG. 2 is a plan view of a main part of a method of installing a safety rope in a steel frame according to the present invention.

FIG. 3 is an overall front view of a method for installing a safety rope in a steel frame according to the present invention.

FIG. 4 is a front view showing an example of securing a safety rope.

FIG. 5 is a front view showing a conventional example.

FIG. 6 is a perspective view showing an example of a conventional safety rope tether.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Steel column 2 ... Safety rope 3 ... Hook 4 ... Steel beam 5 ... Steel column 6 ... Steel beam 7 ... Diaphragm 8 ... Strut 9 ... Safety rope 10 ... Eyebolt 11 ... Shackle 12 ... Satsumasa

Claims (1)

(57) [Claims] 1. A metal safety rope support is raised at a position corresponding to the inside of a hollow of a steel column on the upper surface of a diaphragm on which a field weld joint of a steel column is provided, and a safety rope is hung between the support columns. A method of installing a safety rope in a steel frame construction, wherein when adding a steel column on a floor, the safety rope support is taken into the lower end cavity.