JPS601122Y2 - Fireproof coating mounting bracket - Google Patents

Description

[Detailed description of the invention] This invention relates to a mounting bracket used to easily attach fireproof coatings to steel columns, etc. in building structures, improve work efficiency, and increase the reliability of adhesion of fireproof plates. It is.

Conventional fireproof coating installation methods include: (1) spraying method in which asbestos or a fireproof material mainly made of asbestos is sprayed onto the surface of the steel frame; (2) fireproof plates such as asbestos-cement boards and calcium silicate plates are attached to the steel frame. There is a dry method, in which the material is attached directly to the steel column, or a frame is constructed using lightweight steel around the steel column, and then fixed with screws to the frame.

The former spraying method has disadvantages such as the inconvenience of having to bring the necessary machinery to the work site, contamination of buildings by spraying, and deterioration of workability and working environment due to the generation of dust. .

The latter method of attaching heat-resistant plates using the dry method 1 has problems such as the complexity and inefficiency of the on-site attachment work, and the uncertainty of bonding the fire-resistant plates, making it difficult to follow the movement of the steel frame, and causing problems such as during earthquakes. Peeling has become a problem.

In addition, there is a construction method (1) in which heat-resistant plates are attached to a frame constructed around a steel frame. However, the disadvantage is that the number of man-hours required to construct the framework increases.

The present invention follows the latter dry method 1, and in order to improve the inefficiency of the fireproof board bonding work caused by the conventional method and the reliability of fireproof board bonding, the present invention uses the mounting bracket. The purpose is to simplify the work and increase the reliability of adhesion of the fireproof plate by inserting it into the flange of a steel frame column, etc., and fixing the fireproof plate to the coating material fixation surface of the relevant mounting bracket to obtain a steel frame fireproof coating structure. The gist of this is that it consists of a clamping part for clamping the flange part of a steel column, etc., and a fireproof coating mounting part integrated with this clamping part, and the mounting part is The holding part has a U-shaped cross section or an opening-shaped cross section separated from the parallel part and the vertical part, and the clamping part holds the flange part of the steel column etc. between the one parallel part and the steel column. The flange portion of the flange is characterized by a spring structure that provides a force for tightening corresponding to the flange thickness.

Below, an example of this invention will be described based on the drawings.
In Fig. 1A, the clamping part 4 of the mounting bracket of the present invention is inserted into the flange part 1 of a steel column, etc., and a fireproof plate etc. 2 is fixed to the main body 3 using screws etc. 5 to construct a fireproof covering structure. .

At this time, since the clamping part 4 has a spring structure, a tightening force corresponding to different flange thicknesses can be obtained, and it can be easily attached and detached.

Furthermore, if it is necessary to adjust the position of the fireproof board mounting surface, use the mounting brackets shown in Figures 2A and B, and install a liner plate between the flange 1 and the main body 3 as shown in Figure 1B. 6, it becomes possible to adjust the position toward the outside of the flange, and if it is necessary to adjust the position toward the inside of the flange, use the mounting bracket shown in Figure 2C.
Mounting bracket 3 having a clamping part inside the main body as shown in Fig. 1C
By inserting the liner plate 6 as described above, the position of the fireproof plate mounting surface can be adjusted.

Further, the shape of the main body 3 is not limited to the shape shown in FIG. As shown in Figure B, the main body 3 is fixed to the fireproof plate 2 using screws 5, and the flange part 1 is fixed between the main body 3 and the clamping part 4 using the elasticity of the clamping part 4, thereby providing a fireproof coating. A structure may be configured.

As explained above based on the embodiment shown in the drawings, this invention is compared to the conventional construction method in which a mounting bracket 3 is attached to a flange portion 1 of a steel column, etc., and a fireproof plate 2 is fixed to the bracket. The cross-section of the mounting bracket is U-shaped or square-shaped, and the flexibility and looseness of the clamping part makes it fire-resistant and has excellent ability to follow the movement of the steel frame. A fireproof sheathing structure using the sheathing material attachment fittings is obtained.

[Brief explanation of the drawing]

Figure 1A is a sectional view showing a steel frame fireproof coating structure, Figure 1B is an enlarged sectional view of a mounting part using a mounting bracket 3 with a clamping part provided outside the main body, and Figure 1C is a clamping part. is an enlarged cross-sectional view of the mounting part using the mounting bracket 3 provided inside the main body, FIGS. Figure C is a perspective view of the fireproof covering material mounting bracket of the present invention which has a clamping part inside the main body, Figure 3A is a perspective view of a mounting bracket whose body has a mouth shape, and Figure 3B is the same as A. FIG. 3 is an enlarged cross-sectional view of a mounting portion using the mounting bracket shown in FIG. In the drawing, 1 is the flange part, 2 is the fireproof plate, etc., 3 is the main body, 4
5 is a clamping portion, 5 is a screw, etc., and 6 is a liner plate.

Claims (1)

[Scope of utility model registration request] It consists of a clamping part for clamping the flange part of a steel column, etc., and a fireproof coating mounting part integrated with this clamping part. t has an opening-shaped cross section, and the clamping part clamps the flange part of the steel column, etc. between it and the one parallel part, and tightens the flange part of the steel column, etc. according to the flange thickness of the flange part. A fireproof coating mounting bracket characterized by a spring structure that provides strength.