JPH06294175A - Attic space separation wall construction - Google Patents

Abstract

PURPOSE:To obtain such an attic space as the work is easy, at the same time, a fire in the attic space is not spread to the outside in the case of a fire and no fire enters the inside of the attic space from the outside. CONSTITUTION:A unit building 1 is equipped with a roof panel 6, etc., mounted to an upper floor building unit 4 through panel fixtures 5, an sttic space 7 is formed of the upper floor building unit 4 and roof panel 6, and the attic space 7 is partitioned with a separation wall panel 8. The upper end of an external wall 10 is extended to the rear of the roof panel 6 to fill a space between both of them therewith, the upper surface of a ceiling beam 12 of the upper floor building unit 4 is coated with a fire resisting face material 13, and a fire resisting face material 23 is stuck on the rear of the roof panel 6. The attic space 7 is surrounded by the fire resisting face material 13, etc., to form a fire resisting space.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hut back wall structure,
Especially the space between the building unit and the roof panel is the attic,
It can be used to make this attic a fireproof space.

[0002]

BACKGROUND ART A unit-type building such as a house is constructed by carrying a plurality of building units, roof units, etc. manufactured in advance in a factory to a construction site and combining them there. In such a unit type building, the space formed by the building unit and the roof unit is often used as an attic.

By the way, in a unit type building which is considered as an apartment house, it is legally required to make each house a fireproof structure. Therefore, the boundary wall panels that partition each house are also fireproof. Here, in the unit type building, when the attic is formed as described above, the wall panel for partitioning each attic must also have a fireproof structure. As an example of the hut back wall structure of such a building unit, there is JP-A-2-272123.
According to the technique disclosed in this publication, an eaves-side boundary wall structure in which an eaves-side boundary wall panel is attached on an extension of the eaves-side partition wall panel for partitioning the attic, and the attic wall is partitioned by both boundary wall panels. It is said that.

[0004]

In general, in order to make a fireproof space a hut divided by a boundary wall panel, the upper surface of the building unit is covered with a fireproof material, and the roof panel is provided with a fireproof material. Requirements such as that the gap between the upper end of the outer wall of the building unit and the back surface of the roof panel is covered with a refractory material. In the behind-the-shelf boundary wall structure disclosed in the above-mentioned publication, a boundary wall panel for the eaves is provided on an extension of the inside wall panel for the behind-the-shelf, and the fire wall at the time of the fire between the adjacent attic houses is provided by both boundary wall panels. Prevents intrusion. But,
The gap between the upper edge of the outer wall of the building unit and the back surface of the roof panel is not covered with fireproof material, that is, the attic does not form a fireproof space surrounded by fireproof material. May spout out from the gap to the outside and the fire may burn to other things, or the fire from the outside may enter from the gap and cause a fire in the attic.

Therefore, it is conceivable to close the gap between the upper end of the outer wall of the building unit and the rear surface of the roof panel with a refractory material. However, with such a structure, a typical roof panel is constructed by sticking a fireproof roof material on the surfaces of a plurality of core materials, and therefore, a fireproof material that closes the gap is added to the core material at each core material interval. A new problem arises in that it has to be formed in a concavo-convex shape in accordance with the material, and the processing is troublesome.

[0006] Here, the object of the present invention is that the processing is easy, the fire inside the hut does not blow out to the outside even when a fire occurs, and the fire from the outside does not enter the inside of the hut. To provide the structure.

[0007]

According to the present invention, therefore, a space between a building unit and a roof panel mounted on the building unit is made into an attic, and the attic is partitioned by a boundary wall panel. In the hut back wall structure, the upper surface of the building unit is covered with a first fire-resistant surface material,
A second fire-resistant surface material is attached to at least the back surface of the roof panel, a gap between the outer wall of the building unit and the back surface of the roof panel is closed with a third fire-resistant material, and the attic is covered with the fire-resistant material and the fire-resistant surface material. It is a structure behind the hut behind the hut, which is surrounded by a fireproof space.

The roof panel may have a structure in which a plurality of core materials are provided, and a fire resistant roof material is attached to the front surface and a fire resistant surface material is attached to the back surface with the core materials sandwiched therebetween. .

[0009]

According to the present invention as described above, the upper surface of the building unit is covered with the first fire-resistant surface material, and the second fire-resistant surface material is attached to at least the back surface of the roof panel, and the outer wall of the building unit and the back surface of the roof panel. Since the gap between and is closed by the third refractory material, the attic becomes a fireproof space surrounded by the refractory material and the refractory surface material. Since the second fire-resistant surface material is attached to the back surface of the roof panel, the upper end of the third fire-resistant material does not have to be formed in an uneven shape according to the core material at each interval of the core material, and a fire Even at times, the fire in the attic does not blow out to the outside, and the fire from the outside does not enter the inside of the attic, thereby achieving the above object.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an entire unit-type building having an attic space partitioned by a boundary wall. In the figure,
A unit-type building 1 such as a house includes a plurality of lower-floor building units 3 installed on a foundation 2, an upper-floor building unit 4 assembled on the lower-floor building unit 3, and an upper-floor building unit. The roof panel 6 and the like are attached to the panel 4 via a panel attachment 5. The space formed by the upper-floor building unit 4 and the roof panel 6 is defined as an attic 7 and the attic 7 is partitioned by a boundary wall panel 8.

2 and 3 show a hut back wall structure according to a first embodiment of the present invention. In these figures,
In the hut back wall structure of this embodiment, the upper end surface 10A of the outer wall 10 is extended to the back surface of the roof panel 6, and a gap between the upper end portion of the outer wall and the back surface of the roof panel 6 that occurs when a general outer wall is used. Is closed by the extended portion which is the third refractory material.

That is, a ceiling beam 12 that connects the upper ends of a plurality of columns 11 that form the framework of the upper floor building unit 4 to each other.
A plurality of panel support members 5 are fixed on the
A roof panel 6 is attached while being supported by the support 5. As shown in FIG. 3, the roof panel 6 includes a frame body constructed by a plurality of core members 21 having a groove shape, for example, a refractory roof material 22 on the front surface, and a first refractory material on the back surface. The second refractory material, for example, a fire-resistant surface material 23 such as gypsum board is attached to each other. Then, it is attached to the building unit 4 by the panel support 5 and a bundle (not shown).

On the other hand, the outer wall 10 attached to the ceiling beam 12 by a not-shown fixture has its upper end protruding above the height of the upper end surface of the ceiling beam 12 and extending between both gable sides of the unit-type building 1. It is provided continuously. This outer wall
The upper end surface 10A of 10 is formed to have an inclination substantially equal to the inclination of attachment of the roof panel 6, and is capable of contacting the roof panel 6. Therefore, the gap between the end sides of the adjacent panel supports 5 is closed by the upper end of the continuous outer wall 10. The upper surface of the ceiling beam 12 of the upper floor building unit 4 is covered with a first refractory material, for example, a fireproof surface material 13 such as gypsum board. The outer wall 9 that is generally used in the building unit is mounted so that its upper end surface 9A is substantially flush with the upper end surface of the ceiling beam 12, as indicated by the chain double-dashed line in FIG.

The boundary wall panel 8 is formed in a substantially inverted home base by sticking a fire resistant surface material such as gypsum board on both sides of a core material (not shown), and the bottom side has a fire resistant surface on the upper surface of the ceiling beam 12. While contacting the material 13, the left and right slopes contact the back surface of the roof panel 6 and both ends contact the inner surface of the upper end of the outer wall 10.

Therefore, the attic 7 has a fire-resistant surface material 13 and an outer wall 10.
A fireproof space surrounded by the fireproof surface material 23 on the rear surface of the roof panel 6 and the boundary wall panel 8.

In order to obtain such an attic fireproof structure, first, a building unit 3 having a normal outer wall attached thereto, a building unit 4 having an outer wall 10 and a panel support 5 attached thereto, and the like are assembled at a construction site. After that, the roof panel 6 is attached to the building unit 4 through the panel support 5 and the bundle or the like. Next, the attic 7 is divided into predetermined sections by the boundary wall panel 8 to build the unit-type building 1 having the attic 7 having a fireproof structure.

According to such a hut back wall structure, the outer wall
Since the upper end portion of 10 projects above the height of the ceiling beam 12 and is formed continuously between both gable sides,
A gap formed between the back surface of the roof panel 6 and the upper end portion of the outer wall of the general building unit is closed. Therefore, in the event of a fire, the gap between the adjacent hut 7 and the upper end of the outer wall,
In addition, since the fire does not enter through the back of the eaves, the wall panel for the back of the eaves is not necessary, and the fire resistant structure has a simple structure and sufficient fire resistance.

The upper surface of the ceiling beam 12 is covered with a fire-resistant surface material 13, and the fire-resistant surface material 23 is also attached to the back surface of the roof panel 6. Such an attic 7 has a fire-resistant structure. Since it is partitioned by the wall panel 8, the attic 7 can be a fireproof space surrounded by a fireproof material.

Furthermore, the outer wall 10 produced by extending the upper end portion
Attached to the building unit, and roof panel 6 at the construction site
Since it is only necessary to attach the panel 8 and the boundary wall panel 8, the workability is improved.

On the back surface of the roof panel 6, a fireproof surface material 23
Since the upper surface 10A of the outer wall 10 that abuts the fire-resistant surface material 23 does not have to be uneven at each interval of the core material 21, it is formed on the eaves side with an inclination, Since the outer wall 10 may be formed continuously on the wife side, the outer wall 10 is relatively easy to manufacture.

FIG. 4 shows a hut back wall structure according to a second embodiment of the present invention. Hereinafter, in FIG. 4, the same members as those of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted or simplified. In this embodiment, both sides in the width direction (the eaves direction) of the panel fixture 5 are made of a third refractory material.
For example, asbestos cement calcium silicate board (silica board)
It is a structure of a hut back wall that is sandwiched by refractory materials 31 such as the above, thereby closing the gap between the outer wall 30 and the roof panel 6.

That is, in this embodiment, the upper end surface of the outer wall 9
9A is installed at the same height as the upper end surface of the ceiling beam 12 as in a general building unit. On the other hand, the refractory material 31 is composed of a front member 31A and a rear member 31B, and the front member 31A is provided by closing the upper and lower flange portions of the panel support 5 fixed on the ceiling beam 12. The rear member 31B is fixed to the back side of the web of the panel support 5. Both members 31A, 31B are formed so as to be continuous between the end side panels (not shown) and the boundary wall panels 8 and between the boundary wall panels 8 between the end sides.

In order to make such an attic fireproof structure, after the building unit 4 having the panel support 5 to which the fireproof material 31 is fixed is assembled at the construction site, the roof panel 6 is
Attach to building unit 4. Next, the attic 7 is divided into predetermined sections by the boundary wall panel 8 to build the unit-type building 1 having the attic 7 having a fireproof structure.

In this embodiment as well, in addition to the same effects as the first embodiment, the structure is simple because the fire-resistant surface material 31 may be fixed before and after the panel support 5. Further, since the fire-resistant surface material 31 is a plate-shaped member, it is easy to handle, and the effect of improving work efficiency can be added.

FIGS. 5 and 6 show a hut back wall structure according to a third embodiment of the present invention. Hereinafter, in FIGS. 5 and 6, the same members as those in each of the above-described embodiments are designated by the same reference numerals, and the description thereof will be omitted or simplified. In this embodiment,
A gap between the upper end of the outer wall 9 and the roof panel 6 is closed by a soft refractory material 40, which is a third refractory material, to form a hut back wall structure.

That is, one side of the soft refractory material 40 having substantially the same width as that of the outer wall 9 is brought into contact with the back side of the web of the panel support 5, and the bottom side and the other side surfaces following the bottom side.
It is fixed to the container 41, and the container 41 is fixed to the outer wall 9 by, for example, a nail or the like. Refractory material
The upper surface of 40 is designed to be compressed by the roof panel 6, and such a refractory material 40, as shown in FIG. It is provided over L. The predetermined section L is a distance such that the fire does not reach the adjacent attic 7 at the time of fire.

In this embodiment as described above, in addition to the same effects as the above-mentioned embodiments, the soft refractory material 40 is used, so that the refractory material 40 is easy to handle and the refractory material 40 is kept in the predetermined section L. Since it does not have to be provided over the entire length between the wife sides, it is possible to add the effect that the material is not wasted.

The present invention is not limited to the above-mentioned embodiments, but includes the following modifications. That is, in the first embodiment, the upper end surface 10 of the outer wall 10 is
A extends above the ceiling beam 12, but is not limited to this,
For example, the upper end surface 10A of the outer wall 10 has a height substantially the same as the height of the ceiling beam 12 as in a general building unit, and a piece material continuous to the outer wall 10 is formed in the gap between the roof panel 6 and the back surface generated thereby. May be attached. And this piece material should just be combined with the outer wall 10 in a factory or a construction site, and when connecting it at a construction site, it may be before the building unit 4 is hung, or after it is hung and lowered.

In the first embodiment, the outer wall 10 whose upper end surface 10A is located above the ceiling beam 12 is continuous between the gable sides. However, the present invention is not limited to this, and the upper end surface 10A of the outer wall 10 is not limited to this.
Should be positioned above the ceiling beam 12 for a predetermined period of time so that the fire does not enter the adjacent hut 7.

In the second embodiment, the fire-resistant surface materials 31 are fixed one by one on the front and back of the panel support 5, but the point is that the gap between the upper end of the outer wall 9 and the back surface of the roof panel 6 is a gap. May be closed. For example, one plate-shaped member having a sufficient fire resistance may be fixed to either the front or the rear of the panel support 5. In such an embodiment, in addition to the same effects as in the above-mentioned respective embodiments, since it is good to fix one fire-resistant surface material, it is possible to add the effect that the structure is simple and the work is easy.

Further, in each of the above-described embodiments, the gap between the outer walls 10 and 9 and the roof panel 6 is closed with a refractory material, but the fire resistance before and after the outer wall 10 and the panel support member 5 is provided separately from the panel support member 5. Material 31 or soft refractory material 40 is used,
Not limited to this, for example, a refractory material as shown in FIG. 7 may be used. That is, in the present embodiment, the panel support and the refractory material are combined into one member, and the refractory panel support 50, which is a refractory material, has the cross-sectional shape of the panel support 5 of each of the above-mentioned embodiments. Although they have the same cross-sectional shape, they are continuously formed between the end sides. The fire-resistant panel support 50 is made of a fire-resistant steel material for building structures (FR steel), which has higher strength at high temperatures than conventional steel materials for general structures and has long-term allowable strength.
It is formed by coating steel with refractory paint. In this embodiment, in addition to the same effects as the above-described embodiments, the panel support and the refractory material are combined into one member, so that the structure is simple and the mounting work is easy. Can be added.

Further, in each of the above-mentioned embodiments, the fire-resistant surface material 23 is attached to the back surface of the roof panel 6, but the present invention can also be applied to a roof panel to which the fire-resistant surface material 23 is not attached. It is a thing. In that case, the outer wall 10 in each embodiment that abuts the climbing beam 21 and the roof material 22 of the roof panel,
The upper surfaces of the refractory material 31, the soft refractory material 40, and the refractory panel support 50 may be formed in an uneven shape so as to be able to contact the climbing beam 21 and the roof material 22.

In addition, the specific structure, shape, and the like for carrying out the present invention may be any other structure as long as the object of the present invention can be achieved.

[0034]

As described above, according to the hut back wall structure of the present invention, it is easy to process, the fire in the hut does not spout to the outside even when there is a fire, and The effect is that fire does not enter the back of the hut.

[Brief description of drawings]

FIG. 1 is an overall front view showing a unit-type building including an attic space formed by an attic space structure according to an embodiment of the present invention.

FIG. 2 is a detailed view of a part A in FIG. 1, showing a main part of a hut back wall structure according to the first embodiment of the present invention.

FIG. 3 is a perspective view showing the vicinity of an attic of a unit type building.

FIG. 4 is a detailed view of a part A in FIG. 1, showing a main part of a hut back wall structure according to a second embodiment of the present invention.

FIG. 5 is a detailed view of a portion A in FIG. 1, showing a main portion of a hut back wall structure according to a third embodiment of the present invention.

FIG. 6 is a view on arrow VI in FIG.

FIG. 7 is a perspective view of the vicinity of the back of a hut showing a modification of the present invention.

[Explanation of symbols]

 1 Unit type building 5 Panel support 6 Roof panel 7 Attic 8 Panel wall panel 9, 10 Exterior wall 12 Ceiling material 13,23 Fireproof surface material 31 Fireproof material 40 Soft fireproof material 50 Fireproof panel support 50

Claims (2)

[Claims] 1. A hut backside wall structure in which a space between a building unit and a roof panel mounted on the building unit is an attic, and the attic is partitioned by a wall panel, wherein the building is a building. The top of the unit is first
Of the roof panel, a second fire resistant material is attached to at least the back surface of the roof panel, the gap between the outer wall of the building unit and the back surface of the roof panel is closed with a third fire resistant material, and the attic is covered with these. A hut back wall structure characterized by a fireproof space surrounded by fireproof materials and fireproof surface materials. 2. The hut back wall structure according to claim 1, wherein the roof panel includes a plurality of core materials, and a refractory roof material is provided on a front surface and a fire resistant surface is provided on a back surface with the core materials sandwiched therebetween. A structure behind the hut behind the hut characterized by the fact that each material is attached.