JPH0735680B2 - Fireproof structure of unit housing - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a fireproof structure of a unit house formed by stacking housing units.

(Prior Art) Conventionally, as a fireproof structure of a unit house, for example, a structure described in Japanese Utility Model Publication No. 51-26888 is known.

This conventional fireproof structure, with the floor beams of the residential unit on the upper floor,
The ceiling beam of the housing unit on the lower floor is intended to be covered with the fire-resistant floor material of the housing unit on the upper floor and the fire-resistant decorative material provided on the lower side thereof in a batch, and the fire-resistant decorative material is A metal-based material, a wood-based material, a plastic-based material or the like, which has been previously formed into a long cross-sectional shape, has been used.

(Problems to be solved by the invention) However, in such a conventional fire resistant structure of a unit house, since the fire resistant decorative material is formed in a sectional shape in advance, the house units are connected to each other at the construction site. After that, the floor beams of the upper-floor housing units and the ceiling beams of the lower-floor housing units are collectively fireproof coated, and the fireproof decorative material is fixed to the underside of the fireproof flooring of the upper-floor housing units. However, there is a problem in that it is troublesome and the fire resistance tends to vary because the work on site is complicated and the workability is poor.

(Means for Solving Problems) The present invention has been made for the purpose of solving the above problems, and in order to achieve this object, in the present invention, the housing unit on the upper floor is Stacked on the floor unit, the upper floor unit and the lower floor unit are arranged so that the floor beam of the upper floor unit and the ceiling beam of the lower floor unit are adjacent to each other. A fireproof structure of a unit house in which adjacent ceiling beams and floor beams are collectively fireproofed by a fireproof flooring material of a housing unit on an upper floor and a fireproof coating material provided under the fireproof flooring material. In the above, the fireproof coating material is divided into a coating material upper portion and a coating material lower portion, the coating material upper portion is fixed to a floor beam of a housing unit on an upper floor before the housing units are stacked, and the coating material lower portion is Before the housing units are stacked A soft fireproof filler fixed to a ceiling beam of a housing unit on a lower floor, and the covering material upper part and the covering material lower part are attached to the covering material upper and lower surfaces or the covering material lower surface before the housing units are stacked. The means are overlapped with each other.

(Operation) Therefore, in the fireproof structure of the unit house of the present invention,
Fixing the upper part of the covering material to the housing unit on the upper floor, fixing work to fix the lower part of the covering material to the housing unit on the lower floor, or even installing the refractory filler can be performed in the factory, at the construction site, By stacking the upper-floor housing unit on the lower-floor housing unit and stacking the covering material upper part and the covering material lower part with the refractory filling material interposed, the floor beams of the upper-floor housing unit and Fireproof coating can be performed on the ceiling beams of the housing unit at once.

Further, since a soft refractory filling material is provided, this refractory filling material absorbs the assembly error of the lower-floor housing unit and the upper-floor housing unit, etc., and reliably covers the ceiling beams and floor beams. be able to.

(Examples) Examples of the present invention will be described in detail below with reference to the drawings.

First, the structure of the embodiment shown in FIGS. 1 and 2 will be described.

The unit housing of the present embodiment is configured by stacking the housing units A, and the housing unit A on the upper floor and the housing unit A on the lower floor are the floor beam 1 of the housing unit A on the upper floor and the housing on the lower floor. The ceiling beam 2 of the unit A is bolted via a bracket 3. In addition, the neighboring residential units A, A
The floor beam 1 and the ceiling beam 2 are also connected to each other via the bracket 3.
Are bolted together.

The floor beam 1 and the ceiling beam 2 are formed of C channels, and together with columns (not shown), form a frame of each housing unit A.

And as shown in the right part of FIG. 1, four housing units A are arranged vertically and horizontally, and the floor beam 1
As for the portion where the four ceiling beams 2 are adjacent to each other, those floor beams 1 and ceiling beams 2 are the fire-resistant floor material 4 and the fire-resistant coating material 5.
And all four are fireproof coated together. Further, as shown in the left part of FIG. 1, two housing units A are arranged only in the upper and lower parts, and the floor beam 1 and the ceiling beam 2 are adjacent to each other in the vertical direction. The floor beam 1 and the ceiling beam 2 include a fireproof floor material 4, a fireproof covering material 5, and a fireproof outer wall material 6.
The two are fireproof coated together.

The refractory floor material 4 includes a floor main body 41 provided between the floor beams 1 of the respective housing units A, and a floor joint material 42 provided between the adjacent housing units A and A for connecting the floor main bodies 41 and 41 to each other. It is composed of. The floor body 41 is an ALC plate with a thickness of 125 mm.
It is formed by embedding a reinforcing bar 412 in 411, and is fixed to the inner side surface of the floor beam 1 with a bolt 43 and a nut 44. Further, the floor joint material 42 is formed of an ALC plate having a thickness of 50 mm.

The fire-resistant covering material 5 has a cross section fixed to the floor beam 1 of the housing unit A on the upper floor. -Shaped covering material upper part 51 and ceiling beam 2 of the housing unit A on the lower floor
Cross section fixed to The lower part of the covering material 52 is divided into two parts, which are superposed with a refractory filling material 53 such as soft rock wool interposed therebetween.

The upper part 51 of the covering material and the lower part 52 of the covering material are formed of a calcium silicate plate having a thickness of 25 mm, and the lower part of the upper part 51 of the covering material and the upper part of the lower part 52 of the covering material are made of a calcium silicate plate. It has a structure in which the sheets are stuck together, and the adhesive surface with the refractory filler 53 is formed widely. Further, in the gap between the upper part 51 of the covering material and the refractory floor material 4, a refractory filling material 54 such as rock wool is provided.
Is filled.

Furthermore, in the part where the four floor beams 1 and ceiling beams 2 are adjacent to each other,
A decorative joint material 55 is provided between the housing units A, A, and the lower cover materials 52, 52 are continuous with each other by the decorative joint material 55.

The fireproof outer wall material 6 is formed of an ALC plate having a thickness of 75 mm, and is fixed to the outer side surfaces of the floor beam 1 and the ceiling beam 2. A fire-resistant filling material 61 is filled in the gap between the fire-resistant outer wall materials 6, 6 between the housing units A, A, and a fire-resistant filling material such as rock wool is also filled in the gap with the ceiling beam 2.
62 is filled, and together with the refractory floor material 4 and the fireproof coating material 5, the floor beam 1 and the ceiling beam 2 are fireproof coated without a gap.

Reference numeral 7 denotes a ceiling material, which is made of gypsum board, and is fixed to the side surface of the covering material lower portion 52 via a ceiling joist 71.

Reference numeral 8 denotes a cable, which is wired mainly between the fire-resistant floor material 4 and the ceiling material 7 and between the fire-resistant outer wall material 6 and the inner wall material 9, and is appropriately connected from the ceiling material 7 or the inner wall material 9 to the inside of the room. Parts have been taken out. The cable 8 is made up of the refractory floor material 4 and the ceiling material 7.
Between and, by penetrating the refractory filling material 53 interposed between the covering material upper part 51 and the covering material lower part 52, it becomes possible to connect between the horizontally adjacent housing units A, A. There is.

Next, the construction procedure will be described.

Each housing unit A first fixes the floor body 41 of the fire-resistant floor material 4, the fire-resistant outer wall material 6 and the ceiling material 7 to the skeleton in the factory, and further covers the floor beams 1 for the upper floors. For the upper material 51 fixed and for the lower floor, the lower covering material 52 is fixed to the ceiling beam 2, and the fireproof filler 53 is attached to the upper surface of the lower covering material 52 with double-sided tape or adhesive. Let it adhere. Further, necessary cables 8 and the like are also wired on the back surface side of the ceiling material 7 of the housing unit A on the lower floor.

Next, the housing unit A transported to the construction site is installed on the foundation from the lower floor. When the lower-floor housing unit A is installed, the cable connection between the lower-floor housing units A and A is performed.

Next, the upper-floor housing unit A is stacked on the lower-floor housing unit A and is fastened to the lower-floor housing unit A. At this time, the lower part of the covering material 52 of the housing unit A on the lower floor
And the upper part 51 of the housing unit on the upper floor is the refractory filler 53
Will overlap through.

The floor beam 1 and the ceiling beam 2 which are adjacent to each other in the vertical direction are collectively covered with the fireproof floor material 4, the fireproof coating material 5, and the fireproof outer wall material 6 at this time.

Further, for the floor beam 1 and the ceiling beam 2 in which four are vertically and horizontally adjacent to each other, a floor joint material 42 is further provided so that the floor main bodies 41 are continuous between the horizontally adjacent housing units A and A. By fixing it to the floor beam 1 and fixing the decorative joint material 55 to the ceiling beam 2 so that the lower part 52 of the covering material is continuous, the fireproof flooring material 4 and the fireproofing covering material 5 are collectively fireproof coated.

Thus, by performing most of the work up to fixing the fire-resistant coating material 5 in the factory and simplifying the work at the construction site,
It is possible to reduce the overall work time and secure stable fire resistance performance without variation.

Further, when the upper-floor housing unit A is placed on the lower-floor housing unit A, the weight of the upper-floor housing unit A causes the refractory filling material 53 between the upper covering material 51 and the lower covering material 52 to be deformed. By doing so, it is possible to absorb the assembly error and the like between the lower-floor housing unit A and the upper-floor housing unit A,
The floor beam 1 and the ceiling beam 2 can be reliably covered with fireproof material.

Also, a refractory filling material between the upper covering material 52 and the lower covering material 52.
Since the cable 8 can be easily penetrated by 53,
The cable 8 can be wired between the refractory floor material 4 and the ceiling material 7 without being exposed to the indoor space.

Although the embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and even if there are design changes and the like within the scope not departing from the gist of the present invention, it is included in the present invention. Be done.

For example, in the examples, the refractory floor material and the fire-resistant outer wall material are formed of ALC plates, and the fire-resistant coating material is formed of calcium silicate plate, but if it has a predetermined fire resistance performance, it is formed of other refractory materials. You may.

(Effect of the invention) As described above, in the fireproof structure for a unit house of the present invention, the work of fixing the fireproof covering can be performed in the factory to simplify the work at the construction site. It is possible to shorten the overall work time and secure stable fire resistance performance without variation.

In addition, by filling the gap between the upper part of the covering material and the lower part of the covering material with a soft refractory filling material, it is possible to absorb the assembly error between the lower-floor housing unit and the upper-floor housing unit and secure the ceiling and floor beams. It is also possible to obtain an effect that a fireproof coating can be obtained.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing a fireproof structure of a unit house of an embodiment of the present invention, and FIG. 2 is a vertical sectional view showing a state of on-site construction of the unit house of the embodiment. A ... Housing unit 1 ... Floor beam 2 ... Ceiling beam 4 ... Fireproof floor material 5 ... Fireproof coating material 51 ... Coating material upper part 52 ... Coating material lower part 53 ... Fireproof filling material

Claims (1)

[Claims] 1. An upper-floor housing unit is stacked on a lower-floor housing unit, and the upper-floor housing unit and the lower-floor housing unit are the floor beams of the upper-floor housing unit and the ceiling of the lower-floor housing unit. Beams are arranged adjacent to each other, and a ceiling beam and a floor beam that are adjacent to each other are collectively formed by the fire-resistant floor material of the residential unit on the upper floor and the fire-resistant coating material provided below the fire-resistant floor material. In the fireproof structure of a unit house that is fireproof coated, the fireproof coating is divided into a coating material upper part and a coating material lower part, and the coating material upper part is a housing unit on the upper floor before the housing units are stacked. Before the housing units are stacked, the lower part of the covering material is fixed to the ceiling beam of the housing unit on the lower floor, and the upper part of the covering material and the lower part of the covering material are stacked before the housing units are stacked. On the top of the covering A fireproof structure for a unit house, wherein the fireproof structure is united with a soft fireproof filler attached to a lower surface or a lower surface of a covering material, with the soft fireproof filler interposed therebetween.