JP2009179974A - Fire-resistant structure of wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fire-resistant structure of a wall, which can effectively protect a column against heating from an indoor side, which can prevent an interior finish board from coming off, which facilitates the mounting of the interior finish board, and which can realize them by easy on-site construction. <P>SOLUTION: For example, exterior wall panels 2 and 2 are arranged on both sides sandwiching a steel column 1 in between. The exterior wall panels 2 are equipped with fire-resistant plate mounting substrate crosspieces 2a which are positioned on both the sides of the column 1 on the indoor side of the exterior wall panel and elongated in a vertical direction, respectively; indoor-side surface portions of both the substrate crosspieces 2a and 2a serve as mounting surfaces; a fire-resistant plate 3 like a strip, which is elongated in the vertical direction, is laid between the substrate crosspieces 2a and 2a, and mounted with a screw 16 etc. so that the column 1 can be positioned at the back; and the interior finish board 4 is mounted with a screw 17 etc. in such a manner that the fire-resistant plate 3 serves as a substrate. The fire-resistant plate 3 is composed, for example, of a magnesium cement material. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a fireproof structure for a wall.

For example, as shown in FIG. 3 (a), in a building outer wall structure in which outer wall panels 52, 52 are arranged on both sides of a steel column 51, mounting of an interior board 53 such as a gypsum board has been conventionally performed. As shown in FIG. 4, wooden interior base bars 52 a and 52 a are attached to the outer wall panels 52 and 52 in advance so as to be located on both sides of the pillar 51 on the indoor side. As shown in FIG. 3 (b), the interior board 53 is attached with screws 54, using the indoor side surface portions of the above-mentioned base bars 52a and 52a as attachment surfaces. ing.
JP 2004-353336 A

  However, in the above structure, with respect to fire resistance, when heated from the indoor side, the interior base bars 52a and 52a start to burn as the heating proceeds, and the screws 54 ... There is a problem that the interior board 53 falls off and the load supporting force of the pillar 51 may be deteriorated.

  In the above outer wall structure, each base wall 52a is provided in advance in each outer wall panel 52. Therefore, in relation to the construction, the width between the base bars 52a and 52a or the width dimension of the column is exceeded. There is also a problem that the distance between the dimensions is set, and the width of each of the base bars 52a and 52a is as small as about 24 mm, for example, so that it is difficult to perform screwing 54 for mounting the interior board 53.

  In view of the above problems, the present invention can effectively protect the pillars against heating from the indoor side, prevent the interior board from falling off, and also install the interior board. It is an object of the present invention to provide a fireproof structure for a wall that can be easily performed and that can be easily realized on site.

  The above-mentioned problem is that the wall panels are arranged on both sides sandwiching the pillar, and each wall panel is provided with a fireproof plate attachment base located on both sides of the pillar on the indoor side and extending vertically. The strip-shaped refractory plates extending in the vertical direction are attached with screws or nails so that the pillars are positioned behind the bases, with the indoor side surfaces of both bases as attachment surfaces. This is solved by the fireproof structure of the wall characterized in that the interior board is attached with screws or nails (first invention).

In this structure, because the indoor side of the pillar is covered with a strip-shaped fireproof plate, not only can the pillar be effectively protected against fire from the indoor side,
Since the interior board is attached with screws or nails with the above fireproof board as a base, the fireproof board does not burn out by heating from the indoor side, the screws or nails hold the interior board firmly, The internal board can be prevented from falling off,
In addition, since the fireproof plate has a large width dimension that can cover the indoor side of the pillar, installation of the interior board with screws or nails can be easily performed,
Moreover, each wall panel is provided with fireproof plate mounting bases that are positioned on both sides of the pillar on the indoor side and extend in the vertical direction, and the fireproof plates are arranged so as to extend over both bases. Since the structure is attached with screws or nails, the refractory plate can be easily installed on site.

  In the first invention, the refractory plate is preferably made of a magnesium cement material (second invention). Magnesium cement material is excellent in fire resistance, and can be screwed in or screwed in and can hold the screw or nail firmly in place. is there.

  Since the present invention is as described above, the pillars can be effectively protected against heating from the indoor side, the falling off of the interior board can be prevented, and the interior board can also be attached. They can be easily performed, and they can be easily realized on site.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

  The fireproof structure of the wall shown in FIG. 1 (a) is applied to the outer wall, where 1 is a pillar, 2 and 2 are outer wall panels, 3 is a fireproof board, 4 is an interior board made of gypsum board and the like.

  As shown in FIG. 2, the pillar 1 is made of a steel pillar, and an outdoor side fireproof plate 5 made of rock wool board or the like is attached to the outdoor side surface portion, and the outdoor side surface portion of the fireproof plate 5 is attached. A secondary waterstop 6 is attached to the.

  As shown in FIG. 2, the outer wall panel 2 is provided with an outer heat insulating material 8 made of glass wool board or the like on the outdoor side of the steel panel frame 7, and from a calcium silicate plate or the like via a fireproof spacer 9. The outer wall surface material 10 is provided, and a ventilation layer 11 between the outer wall surface material 10 and the outer heat insulating material 8 is formed. The outer wall surface material 10 is a screw 12, and the spacer 9 and the outer heat insulating material. 8 and is attached to the panel frame 7.

  Further, in each outer wall panel 2, a fireproof plate mounting base frame 2 a extending in the vertical direction is provided on the indoor side surface portion of the side frame 7 a disposed adjacent to the pillar 1 in the panel frame 7. It arrange | positions so that it may not protrude from the side frame 7a to the pillar 1 side, and is attached with the hardening nail | claw 13. FIG. The base frame 2a of each outer wall panel 2 is made of a refractory material, specifically, a magnesium cement material in the present embodiment. In addition, 14 is a primary waterproofing material, 15 and 15 are heat insulating materials made of rock wool, 20 is a moisture-proof sheet, and 21 is a moisture-permeable waterproof sheet.

  The refractory plate 3 is a belt-shaped member extending in the vertical direction with a width dimension of, for example, about 120 mm, and is made of a magnesium cement material in the present embodiment.

  In the construction, each of the outer wall panels 2 and 2 is arranged such that the side frame 7a of the panel frame 7 sandwiches the pillar 1 from both sides, and the panel frame 7 and the pillar 1 are coupled by bolts or the like. After finishing the construction of 2, as shown in FIG. 1 (b), on the indoor side, the strip-shaped fire-resistant plate 3 extending in the vertical direction is placed on the indoor side of the base rails 2 a and 2 a of the outer wall panels 2 and 2. With the surface portion as the mounting surface, it is attached to these base bars 2a, 2a with screws 16 so that the pillar 1 is located behind them, and then the interior board 4 is attached with screws 17 with the fireproof plate 3 as the base. Done.

  In the above fireproof outer wall structure, since the indoor side of the pillar 1 is covered with the belt-like fireproof plate 3, the pillar 1 can be effectively protected from heating from the indoor side in terms of fire resistance.

  In addition, since the interior board 4 is attached with the screws 17 with the above-mentioned fireproof board 3 as a base, the fireproof board 3 does not burn out by heating from the indoor side, and the screws 17 attach the interior board 4. It can hold firmly and can prevent the interior board 4 from falling off. In particular, in this embodiment, since the base bars 2a and 2a are also made of a refractory material, the screws 16 can hold the refractory plate 3 firmly.

  Further, since the fireproof plate 3 has a large width of, for example, 120 mm as described above, which can cover the indoor side of the pillar 1, the installation of the interior board 4 with the screws 17 should be easily performed. Can do.

  And each outer wall panel 2 consists of what was equipped with the base frame 2a located in the both sides of the pillar 1 in the indoor side, and extended in an up-down direction, and the fireproof board 3 extends to these both base frames 2a and 2a. Since it has a structure in which it is arranged and attached to each base rail 2a, 2a with screws 16, it is possible to easily attach the fireproof plate 3 on site.

  In particular, in the present embodiment, since the fire-resistant plate 3 and the base rails 2a, 2a are made of magnesium cement material, it can exhibit high fire-resistant performance that can withstand over 1 hour, and can firmly protect the pillar 1, The driven screws 16 and 17 can be firmly held to effectively prevent the interior board 4 and the fireproof plate 3 from falling off.

  Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. For example, in the above embodiment, the case where the column 1 is made of a steel column and the panel frames of the outer wall panels 2 and 2 are made of steel is applied to the outer wall of a steel frame or a lightweight steel frame. The present invention can be applied to a wooden outer wall such as a pillar made of wood or the like, and is not limited to an outer wall, and can also be applied to an indoor wall in which both sides face indoors. It is.

  Moreover, although the case where a magnesium cement material was used as the refractory plate 3 and the base crosspiece 2a was shown in said embodiment, other refractory materials, such as a hard wood piece cement material, may be used.

The fireproof structure of the wall of embodiment is shown, A figure (I) is a cross-sectional top view, A figure (B) is a cross-sectional top view which isolate | separated the fireproof board and the interior board from the wall. It is the cross-sectional top view which showed the fireproof structure and made the pillar and the outer wall panel into the isolation | separation state. The structure of the wall concerning a prior art is shown, A figure (I) is a cross-sectional top view, A figure (B) is a cross-sectional top view which isolate | separated the fireproof board and the interior board from the wall. It is the cross-sectional top view which showed the structure of the same wall and made the pillar and the outer wall panel into the separation state.

Explanation of symbols

1 ... pillar 2 ... outer wall panel (wall panel)
2a ... Base rail (base)
3 ... Refractory plate 4 ... Interior board 16 ... Screw 17 ... Screw

Claims (2)

  Wall panels are arranged on both sides of the pillar, and each wall panel is provided with a fireproof plate mounting base located on both sides of the pillar on the indoor side and extending in the vertical direction. A belt-like fire-resistant plate extending in the vertical direction with the inner surface portion as a mounting surface is attached with screws or nails so that the pillar is located behind the base and the interior board is screwed with the fire-resistant plate as a base. Or the fireproof structure of the wall characterized by being attached with a nail.   The fireproof structure for a wall according to claim 1, wherein the fireproof plate is made of a magnesium cement material.

Images