JPS63165627A - Refractory structure of pillar in unit building - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is directed to the construction of pillars in unit buildings suitable for use in buildings of three or more stories, used for apartment complexes, hospitals, hotels, boarding houses, etc. Regarding fireproof structure.

(Prior Art) Pillars of buildings of three or more stories, which are used for condominiums, hospitals, hotels, boarding houses, etc., must have a fire-resistant structure with a specified fire-resistance performance, based on the Building Standards Act. Conventionally, as a fireproof structure of a column, a structure as described in Japanese Utility Model Publication No. 51-26888 and the like is known.

In this conventional structure, the pillars of adjacent units are collectively fireproof coated with a fireproof wall material made of a fireproof material and a fireproof covering material formed in an L-shaped or U-shaped cross section.

(Problems to be Solved by the Invention) However, in such a conventional fireproof structure for pillars, the fireproof covering material is integrally formed in an L-shape or U-shape in advance, and it is difficult to connect it to the fireproof wall material. There was a problem in that it was difficult to ensure precision in joining the fireproof coating because it could only be done on-site.

Furthermore, as shown in Fig. 8, even if the fireproof covering material 01 is divided and joined to the column 02 and the fireproof wall material 03 of each unit A in advance, the connection of the unit A will cause the column 02 to Since it is inevitable that there will be some error in the spacing, there is a possibility that the fireproof covering materials 01 may not be properly joined to each other in the unit A fastened state, and the pillars 02 may not be covered with a fireproof covering without any gaps.

(Means for Solving the Problems) The present invention has been made for the purpose of solving the above-mentioned problems.To achieve this purpose, the present invention provides In the fireproof structure of a column in which the columns are collectively covered with a fireproof coating, the fireproof coating is connected to a first fireproof coating that is previously joined to the column of each unit, and the units are horizontally connected to each other. a second fireproof sheathing material that is joined to the gap between the first fireproof sheathing materials formed in the state, and the second fireproof sheathing material includes a gap between the first fireproof sheathing materials that includes a unit fastening error. An insertion part formed narrower than the minimum width of the gap and inserted into the gap, and an insertion part extending from the side of the insertion part to touch the joint between the #1 fire covering material and the insertion part from the outside. The means is provided with a closing flange.

(Function) In the fireproof structure of the column in the unit building of the present invention, the insertion portion is formed in the second fireproof sheathing material to be narrower than the minimum width of the gap between the first fireproof sheathing materials including the unit fastening error. and,
Because the flange is provided extending from the side, even if there is some error in the gap between the No. 1 fire sheathing materials that are joined to the pillars due to the fastening of the units, the No. The insertion part of the No. 2 fireproof coating material can be easily inserted into the gap, and the joint between the insertion part and the #1 fireproof coating material can be closed from the outside with the flange part.

In addition, since the first fireproof covering material can be joined to the pillars in advance at a factory with a high degree of precision, the second
Positioning when joining fire cladding materials can also be performed accurately and easily.

(Example) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In describing this embodiment, a three-story unit building will be taken as an example, and the fireproof structure of its pillars will be explained.

First, in the unit building of the example, one house is formed by horizontally connecting three units (A) as shown in Figure 1, and these are further stacked horizontally and vertically as shown in Figure 2. It is composed of three stories as shown in the figure.

Each of these units) A has a frame composed of a floor girder 1, a floor beam 2, a ceiling beam 3, a ceiling beam 4, and a column 5, and this frame has a floor material 6, a ceiling material 7, and a wall material. (Outer wall material 8. Inner wall material 9. Parting wall material 10) are attached to the box-like structure, and as shown in Fig. It is bolted to the foundation 11,
Roofing material 12 is installed on the third floor unit A which is the top floor.

In horizontally adjacent unit A, the pillars 5 are fastened to each other, and the pillars 5 assembled together are made of asbestos calcium silicate board etc. with a fire resistance of 1 hour or more (JIS
A 1304 Based on fire resistance test method for building structure parts)
They are collectively covered with a fireproof covering material 13 made of a fireproof material.

First, as shown in Figures 3 to 5, two units)A
The fireproof structure of the part where the pillars 5 are gathered will be explained.

Here, the fireproof covering material 13 includes two cross-sectional first fireproof covering materials 131 that cover the corners of the pillars 5, and the first fireproof covering material 13
1) and a second fireproof covering material 132 having a convex cross section and covering the crossing section A.

The first fire-resistant sheathing material 131 is bonded to the column 5 with a fire-resistant adhesive in the factory before fixing the exterior wall material 8, and the second fire-resistant sheathing material 132 is bonded to the column 5 at the factory as a unit, as shown in FIG. After the parts A are fastened together, they are joined to the pillar 5 and the first fireproof covering material 131 using a fireproof adhesive.

Furthermore, the second fireproof coating 132 has an insertion part 132a that is inserted into the gap between the first fireproof coatings 131, and extends from both sides of the insertion part 132a, and when the insertion part 132a is inserted, the first
A flange portion 132b that closes the space between the fireproof covering material 131 and the insertion portion 132a from the outside is provided. In addition, since the gap between the first fireproof coverings 131 has some error due to the fastening of the units A, the insertion part 132a is designed so that the gap between the 111II fireproof coverings 131 is the minimum including the error. It is formed to a width that can be inserted in any case.

The exterior wall material 8 is made of a fire-resistant material with a fire-resistance time of 2 hours or more (according to JIS A 1304 fire-resistance test method for 3% built-up structural parts), such as an ALC board with a thickness of 100 mm, and is attached to the pillars 5 with a fire-resistant adhesive. Fixed.

Incidentally, the unit crossing portion of this outer wall material 8 is caulked with a fireproof material.

Therefore, the columns 5 of the two units A have a fire resistance time of 1 hour or more (JIS A 13
04 The fire resistance performance (based on the fire resistance test method for building structural parts) is ensured.

The inner wall material 9 is made of a noncombustible material such as gypsum board, and is fixed to the fireproof coated column 5 via a frame 14 after a fireproof coating 13 is bonded to the column 5.

Incidentally, a heat insulating material 15 such as rock wool is filled between the pillars 5, and glass wool 16 is filled on the inner surface of the inner wall material 9.
is installed.

Next, as shown in Figures 6 and 7, the four units)
The fireproof structure of the part where the pillars 5 of A are gathered will be explained.

Here, the fireproof coating 13 includes four cross-sectional first fireproof coatings 133 that cover the corners of the pillars 5, and the first fireproof coating 133 that covers the corners of the pillars 5.
It is composed of four second fireproof covering materials 132 having an O-shaped cross section and covering the uni y) A crossing portions between 33 and 33.

Therefore, the column 5 of the two units) A has a fire resistance time of 1 hour or more (
JIS A 1304 fire resistance test method for building structural parts) is ensured.

The parting wall material 10 partitions the space between each unit, and a 12 mm thick gypsum board 1B is fixed to one side of light iron studs 17, and a 30 mm thick glass fiber filled gypsum board 19 is fixed to the other side. The stud 1B is fixed to the pillar 5 coated with a fireproof coating, and has a fire resistance of 1 hour or more (according to JIS A 1304 fire resistance test method for structural parts built in meters).

Incidentally, this boundary wall material lO is as shown in FIG.

One of the parting wall materials 10 disposed facing each other is in a factory,
The other unit is erected after the first fireproof sheathing material 133 is joined, and the second fireproof sheathing material 132 is erected after the units A are fastened together and the second fireproof sheathing material 132 is joined in the gap between the first fireproof sheathing materials 131. .

Next, the operation of the embodiment will be explained.

First, since the first fireproof sheathing materials 131 and 133 can be precisely aligned and joined to the pillars 5 in advance at the factory, the positioning can also be done when joining the first fireproof sheathing material 132 on site. can be done accurately and easily.

In addition, when joining the second fireproof covering material 132, the pillar 5
Even if the gap between the first fireproof sheathing materials 131 and 133 that are joined to each other has some error due to the fastening of the unit A, the insertion part 132a of the second fireproof sheathing material 132 can be easily inserted into the gap. Can be plugged in. Moreover, the insertion part 1
32a and the first fireproof coating 131, 133 are closed from the outside by the flange 132b.
To ensure fireproof coating without creating any gaps.

Although one embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and the present invention may be modified without departing from the gist of the present invention. included.

For example, in the example, the fireproof structure was applied to a three-story unit building, but it may also be applied to a one-story, two-story, or four-story or more unit building, or it may be applied to a unit building other than a unit building. It may be applied to steel frame buildings, etc.

Further, in the embodiment, a fireproof structure has been described for a portion where pillars of two or four units gather, but the present invention may also be applied to a portion where pillars of three units gather.

Furthermore, the fireproof coating material may be made of a fireproof material other than those used in the examples as long as it has a predetermined fireproof performance.

(Effects of the Invention) As explained above, in the fireproof structure of the pillar in the building of the present invention, even if there is some error in the gap between the first fireproof coatings due to the fastening of the units, The second fireproof coating material can be easily joined without creating a gap, and the column can be reliably coated with fireproof coating.

Moreover, since it is possible to fix the #1 fire covering material to the column in advance at the factory, it is possible to obtain a fireproof structure of the column with high precision in connection and alignment.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing a unit building according to an embodiment of the present invention, Fig. 2 is a longitudinal sectional view showing a unit building according to an embodiment, and Fig. 3 is a unit connection of a fire-resistant structure in a unit building according to an embodiment. 4 is an explanatory diagram of the main part X in FIG. 1, FIG. 5 is a sectional view of the main part X in FIG. 1, and FIG. 6 is an explanation of the main part Y in FIG. 1. FIG. 7 is a sectional view of the main part Y in FIG. 1, and FIG. 8 is a sectional view showing the fireproof structure of columns in a conventional unit building. A...Unit 5...Column 13...Fireproof covering material 131.133...First fireproof covering material 132...Second fireproof covering material 132a...Insert part 132b...Flame part Patent applicant\1. −／

Claims (1)

[Claims] 1) In a column fireproof structure in which columns of horizontally adjacent units are collectively covered with a fireproof coating, the fireproof coating is a first fireproof coating that is previously joined to the column of each unit. , a second fireproof sheathing material that is joined to the gap between the first fireproof sheathing materials formed when the units are fastened together in the horizontal direction, and the second fireproof sheathing material is provided with a unit fastening error. an insertion part formed narrower than the minimum width of the gap between the first fireproof sheathing materials and inserted into the gap; A fireproof structure for a column in a unit building, characterized by being provided with a flange that closes a joint with a joint from the outside.