JPH0717686Y2 - Synthetic fireproof coating structure of steel columns - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic fireproof coating structure for steel columns.

[0002]

2. Description of the Related Art Conventionally, as a fireproof coating structure for a steel column, as shown in FIG. 4, one of four sides of the steel column a is a PC plate or an ALC plate constructed in the vicinity of the steel column a. A so-called synthetic type has been proposed, in which the remaining three sides are covered with a fire-resistant molded plate d through a stretch plate C fixed to the steel column a with a fire-resistant adhesive, There is.

In the conventional synthetic fireproof coating structure, the wall b
The fire-resistant formed plate d on the surface adjacent to is attached to the light iron base material e which is attached and fixed to the steel frame column a by applying welding means, and the tapping screw f is attached.
However, with such a configuration, it is difficult to secure human resources, and it is also troublesome to cure the sparks generated during welding. It was

The present invention has been made for the purpose of eliminating such conventional problems.

[0005]

According to the present invention, the refractory coating portion of the steel column remains with the refractory wall that covers one side of the steel column.
In a synthetic fireproof coating structure composed of a U-shaped assembled fireproof coating plate covering one side, a strip-shaped metal object having bent portions at both ends is provided for each steel column, and each bent portion and the steel column are It is adhered and fixed under the application of a fire-resistant adhesive in the form of sandwiching a stretch board between them, and the molded plate is fixed to the bent part of the strip-shaped metal under the application of tapping screws. The present invention relates to a synthetic fireproof coating structure for a steel column, which is characterized in that

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the present invention in which the steel column 1 is composed of a steel tube column.
One of them is covered with a fire-resistant wall 2 composed of a PC plate, an ALC plate, etc., which is constructed in the vicinity thereof in parallel with one wall surface 1a of the steel column 1, and the remaining three sides are formed into a U-shaped fire-resistant coated molded plate 3 for example. It is covered with calcium silicate molded board, asbestos cement molded board, etc. Walls 1 on three sides of steel column 1
On both sides of the b, 1c and 1d, the stretch plates 4 are adhered and fixed under the application of a refractory adhesive (not shown). The partition plate 4 may be made of the same material as the fireproof molded plate 3.

According to the present invention, in the synthetic fireproof coating structure having the above-mentioned structure, the band-shaped metal piece 5 having the bent portions 5a, 5a at both ends is
It is used to attach and fix the fireproof coating plate 3 to the steel column 1.

The strip-shaped metal piece 5 is provided on the side of the wall surface 1a of the steel frame pillar 1 between the bent portions 5a, 5a and the steel frame pillar 1, and the wall surface 1c,
Of the stretch plates attached to 1d, the stretch plate 4 on the wall surface 1a side
a and 4a are sandwiched, and in this mounted state, the wall surface 1a is applied by applying the fire-resistant adhesive 6.
In addition, it is adhesively fixed to the abandoned plates 4a, 4a. The metal strip 5 is attached to and used at a plurality of positions on the steel column 1 with an appropriate interval in the height direction.

The fireproof coating plate 3 is attached and fixed to the bent portions 5a, 5a of the metal strip 5 by using tapping screws 7.

Thus, according to the present invention, it is possible to obtain the strength which is not different from that of the conventional structure which requires welding, though the structure does not require welding.

FIG. 3 shows an embodiment of the present invention in which the steel column 1'is made of H-shaped steel. The flanges 1a ', 1a' on both ends of the steel column 1'are arranged in a direction orthogonal to the fire wall 2. It is distributed. In this embodiment, the metal strip 5 is adhered and fixed to the end faces of the flanges 1a ', 1a' and the nearest stretch plates 4a, 4a, and other configurations are those of the embodiment shown in FIG. There is no point that is substantially different from. In FIG. 3, reference numeral 4b denotes a refractory material that is filled and fixed between the flanges 1a 'and 1a' on the side opposite to the refractory wall 2.

[0013]

According to the synthetic refractory coating structure of the present invention, since the band-shaped metal article can be simply bonded and fixed under the application of the refractory adhesive, no welding work is required, and experience and skill are required. It has a feature that it can be easily and easily installed without the need for complicated work such as curing of welding sparks.

[Brief description of drawings]

1 is a cross-sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view of a metal strip used in the present invention.

FIG. 3 is a cross-sectional view showing another embodiment of the present invention.

FIG. 4 is an explanatory diagram of a conventional structure.

[Explanation of symbols]

 1 Steel column 2 Fire-resistant wall 3 Fire-resistant coated molding plate 4 Stretch plate 5 Band-shaped metal 6 Fire-resistant adhesive 7 Tapping screw

Claims (1)

[Scope of utility model registration request] 1. A synthetic fireproof coating structure in which a fireproof coating portion of a steel column is composed of a fireproof wall covering one side of the steel column and a fireproof coated molded plate of a U-shaped assembly covering the remaining three sides. At this point, a band-shaped metal object having bent portions at both ends is applied to a steel column under the application of a fire-resistant adhesive in such a manner that a stretch plate is sandwiched between each bent portion and the steel column. A synthetic fireproof coating structure for a steel column, characterized in that it is fixed by adhesion and the molded plate is fixed to the bent portion of the band-shaped metal article by applying tapping screws.