JP2009243175A - Fire-resistant partition structure and its construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a partition wall structure which improves fire-resistant performance of a removable existing partition wall, and which facilitates construction work therefor. <P>SOLUTION: This fire-resistant partition structure 10 includes a stud 20, and the pair of partition walls 30 and 30 with the fire-resistant performance, which is composed of an underlayer material 31 and a facing material 32, attached to the stud 20. One layer of a board material 40 as a fire-resistant material is stuck on the surface of the one underlayer material 31 which faces a hollow portion 13 between the studs 20 and 20. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fireproof partition structure composed of a pair of partition walls, and relates to a partition structure that can improve fireproof performance by a simple method and a construction method thereof.

  In recent years, various improvements and developments have been made on dry-type fireproof partition walls. As shown in FIG. 4, the structure widely adopted in the prior art uses a steel stud 1 as a base plate 4 and a top plate 5 such as a calcium silicate plate and a plaster plate directly on both side surfaces 2 and 3 thereof. The surface plate 6 comprised by these is attached (refer patent document 1).

Japanese Patent No. 2932352

  However, in the case of such a structure, when heated from one side of the partition wall, heat is easily transmitted to the other side through the steel studs 1 and there is a problem in fire resistance. In particular, when one of the joints of the lower plate 4 or the upper plate 5 is located on the steel stud 1, heat is more easily transmitted.

In order to improve the fire resistance, a thick partition wall (surface plate 6) may be used. However, in this method, since the wall becomes thick, the room cannot be used effectively, which is not preferable.
If you want to increase the fire resistance of the studs, you can increase the thickness of the walls around the studs, but it may not be appropriate in terms of design.

  Accordingly, the present invention has been made to solve the above-mentioned problems of the prior art, and obtains a partition wall having high fire resistance without increasing the thickness of the partition wall, and fire resistance of the existing partition wall. The object is to provide a partition wall structure that can improve performance and that can be easily constructed.

To achieve the above object, according to a first aspect of the present invention, there is provided a fireproof partition structure including a pair of partition walls having fire resistance, and one partition wall facing a hollow portion formed between the partition walls. One or two or more board-like refractory materials are attached to the surface. Here, the board-like refractory material is a molded body made of a material that absorbs heat when exposed to heat in a fire, a heat insulating material, or a material that exhibits heat insulation when exposed to heat. Refers to a molded body having no.
A second invention is the same fireproof partition structure, wherein the fireproof material is attached between studs arranged in the hollow portion at a predetermined interval.
3rd invention is the said refractory partition structure characterized by the said refractory material having a space | gap between at least one between pillars.
4th invention is the said fireproof material partition structure where the width direction edge part after the 2nd layer was inserted inside the substantially U-shaped stud.
5th invention is the construction method of the fireproof partition structure which attached the pair of partition walls which have a fireproof performance to the stud. Between the 1st process of attaching a pair of partition walls to a stud, and the said 1st process, a partition wall And a second step of attaching one or more board-like refractory materials to the surface of one partition wall facing the hollow portion formed between the partition walls.
6th invention is a construction method of the fire-resistant partition structure which attached the pair of partition walls which have fire resistance performance to the stud, board-like refractory material was previously carried out on the surface of one partition wall among a pair of partition walls attached to a stud. A first step of attaching one layer or two or more layers, and a step of attaching a pair of partition walls to the studs so that the refractory material attached in the first step faces a hollow portion formed between the partition walls and the partition wall. It is characterized by comprising two steps.
In a construction method of a fireproof partition structure in which a pair of partition walls having fire resistance performance are attached to a stud, a seventh invention is formed between the first step of removing one of the existing partition walls and the partition wall and the partition wall. A second step of attaching one or more layers of board-like refractory material to the inner surface of the other partition wall facing the hollow portion or the inner surface of the partition wall to be attached to the removed side, and the partition wall on the removed side The third step of attaching is provided.
Here, the “partition wall to be attached to the removed side” in the second step includes a new partition wall to be newly attached in addition to the partition wall removed in the first step.

The present invention has the following effects.
(1) By attaching one layer or two or more layers of board-like refractory materials to the surface of one underlaying material facing the hollow portion formed between the partition walls constituting the fireproof partition structure and the partition walls The fire resistance can be improved without increasing the wall thickness.
(2) Since the refractory material has a gap between at least one of the pillars, it is easy to attach the fireproof material, and even if the length between the pillars varies slightly depending on the location, It is possible to attach a fire resistance improving material.
(3) Since the refractory material has inserted the end portions in the width direction after the second layer into the inner side of the substantially U-shaped stud, the stud portion is also provided with a heat insulating material, thereby improving the fire resistance performance of the entire partition wall. be able to.
(4) By attaching one or more layers of board-like refractory materials to the inner surface of the partition wall or the surface of the other partition wall, the partition wall having high fire resistance can be easily constructed.
(5) By removing one of the partition walls of the existing fire-resistant partition structure and attaching one or more layers of board-like refractory materials that improve fire resistance to the surface of the other partition wall or the inner surface of the removed partition wall The existing partition wall can be easily modified to a partition wall having high fire resistance.
(6) Furthermore, if one partition wall is removed and the removed board is attached again, construction can be performed while using the existing partition wall without replacing the partition wall.

An example of an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a fireproof partition structure before an embodiment according to the present invention. In addition, although the partition structure which consists of an upper material and an underlay material is shown in FIG. 1, the partition structure where one board | plate material is also the same. Moreover, although a plaster board and a calcium silicate board can be used as a board | plate material, this combination is selected suitably.
A fireproof partition structure 10 shown in FIG. 1 includes studs 20, 20,... Attached at equal intervals in the vertical direction so as to connect a substantially U-shaped upper runner 11 and a lower runner 12 provided in a horizontal direction. , And a pair of partition walls 30 attached so as to face the intermediate pillar 20.

  The partition wall 30 is composed of a lower material 31 and an upper material 32. The underlaying material 31 drives a driving-type fastener 37 such as a screw / tucker into the stud 20, and the upholstery material 32 is bonded to the underwear 31 using industrial staples or an adhesive (not shown). By doing so, the partition wall 30 is attached and fixed to the stud 20.

Next, FIG. 2 is explanatory drawing which shows 1st Embodiment which concerns on this invention, and is a horizontal sectional view of a fireproof partition structure.
In the first embodiment shown in FIG. 2 (A), a partition wall 30a is formed using a calcium silicate plate 31a as an underlay material and a gypsum plate 32a as an upholstery material.
In the first embodiment shown in FIG. 2 (B), a partition wall 30b is configured using a gypsum plate 31b as an underlay material and a calcium silicate plate 32b as an upholstery material.

→ The first mode of implementation was set up in the case of new establishment. → I understand.
In the first embodiment, one layer of the board material 40 as a refractory material is attached (fitted) to the surface of one undercoating material 31 facing the hollow portion 13 between the intercolumns 20. It is a feature. Here, as the board material 40, a molded body made of an endothermic substance such as aluminum hydroxide, gypsum, silica gel, zeolite, copper hydroxide, magnesium sulfate hydrate, aluminum sulfate hydrate, magnesium phosphate hydrate, or the like. Examples thereof include fibers such as silica fiber, glass fiber, ceramic fiber, rock wool fiber, and carbon fiber, inorganic foam heat insulators such as expanded graphite, mica, and vermiculite, and hollow heat insulators such as perlite and zonotlite. The board material 40 is attached to the underlay material 31. In this case, you may attach to the underlay material 31 beforehand, and you may attach to the underwear 31 after attaching the underwear 31 to the stud.

  By attaching the board material 40, a new fireproof layer is formed on the partition wall 30. As a result, the fire resistance of the partition wall 30 can be improved. In addition, the one end part of the board | plate material 40 is equipped with the space | gap 41 between the studs 20. FIG. As a result, the board material 40 can be easily attached (fitted), and the board material 40 can be reliably attached even when the distance between the intermediate pillars 20 and 20 varies slightly depending on the location. Also, when the board material 40 is attached to the underlay material 31 in advance, it becomes a clearance and the construction is easy. One end portion of the board material 40 is fixed to the undercoating material 31 by a fixture 42 (for example, a stud pin or the like).

Next, an example of the construction method of 1st Embodiment is demonstrated. In order to attach the board member 40 shown in FIG. 2, first, one partition wall 30 is attached to the stud. The board material 40 is attached to the surface of the lower wall 31 of the attached partition wall (board material retrofitting method). After the board member 40 is attached, the facing partition wall 30 is attached again. By having such a structure and construction method, the following effects are obtained. Note that the board member 40 may be attached to one partition wall 30 in advance before being attached to the studs (board material leading method).
(1) A partition wall having high fire resistance can be formed without increasing the thickness of the partition wall.
(2) Since there is a gap between the studs and a hand can be put in, construction is easy.
(3) Since there is the hollow portion 13 inside the partition wall 30, even when wiring is necessary, the board material 40 does not become an obstacle and can be constructed.

Next, FIG. 3 is explanatory drawing which shows 2nd Embodiment which concerns on this invention, and is a horizontal sectional view of a fireproof partition structure.
In 2nd Embodiment shown in FIG. 3, it is the partition wall 30c which used the calcium-silicate board 31c and the calcium-silicate board 32c for both the underlining material and the upholstery material. Note that the undercoat is slightly thicker than the upholstery.

In this second embodiment, two layers of board material 40 as a fire resistance improving material for improving fire resistance are attached to the surface of one underlaying material 31c facing the hollow portion 13 between the stud 20 and the stud 20 ( Fitted). In this case, the end in the width direction of the board material 40 of the second layer is inserted into the inside of the substantially U-shaped stud 20. By doing in this way, the part of the spacer 20 will also be equipped with a heat insulating material, and the fireproof performance of the partition wall 30 can be improved as a whole.
An example of the construction method of 2nd Embodiment is demonstrated. In order to attach the board member 40 shown in FIG. 2, first, the partition wall 30 is removed, and the board member 40 that improves the fire resistance on the surface of the stretch material 31 of the other partition wall 30 (the one that is not removed). Install. After the board member 40 has been attached, the facing partition wall 30 removed previously is attached again (in addition to the removed partition wall, a new partition wall may be newly attached). By having such a structure and construction method, the following effects are obtained.
(1) The fire resistance of the partition wall 30 can be improved without replacing the removed partition wall 30.
(2) As the construction work, since the partition wall 30 is removed and attached and the board material 40 is attached, there is little generation of dust and the like, and the environment at the work site can be considered.
(3) Even if the partition wall 30 needs to be perforated or the hollow portion 13 needs wiring, the work can be performed without any obstacles.
(4) If a board member 40 having a small size (for example, 500 × 500 mm) is used, the board member 40 can be inserted by removing the partition wall only at the back part of the ceiling using the space behind the ceiling. Construction is possible without adversely affecting the room. As such construction, for example, a method of inserting small board-like objects between the partition walls while being connected to each other and fixing the board-like objects to the partition wall in the vicinity of the uppermost part can be mentioned.

  The fireproof partition structure and construction method of the present invention can be widely used for existing partition walls and can also be used for new partition walls.

The perspective view which shows the fireproof partition structure before embodiment which concerns on this invention. Explanatory drawing which shows 1st Embodiment which concerns on this invention (horizontal sectional drawing of a fireproof partition structure). Explanatory drawing which shows 2nd Embodiment which concerns on this invention (horizontal sectional drawing of a fireproof partition structure). Explanatory drawing explaining a prior art.

Explanation of symbols

10 fireproof partition structure 11 upper runner 12 lower runner 13 hollow part 20 stud (stud)
30 partition wall 31 lower material 32 upper material 37 driving type fastener 40 board material 41 gap 42 fitting

Claims (7)

  In a fireproof partition structure having a pair of partition walls having fire resistance, one or two layers of board-like refractory material on the surface of one partition wall facing the hollow portion formed between the partition walls A fireproof partition structure characterized by the above arrangement.   The fireproof partition structure according to claim 1, wherein the fireproof material is disposed between studs in the hollow portion and disposed at a predetermined interval.   The fireproof partition structure according to claim 2, wherein the fireproof material includes a gap between at least one of the pillars.   4. The fireproof partition structure according to claim 2, wherein the fireproof material has a widthwise end of the second and subsequent layers inserted into the inside of a substantially U-shaped stud. In the construction method of the fireproof partition structure in which a pair of partition walls having fireproof performance are attached to the studs,
A first step of attaching a pair of partition walls to the studs;
During the first step, a second step of attaching one or more layers of board-like refractory material to the surface of one partition wall facing the hollow portion formed between the partition walls is provided. The construction method of the fireproof partition structure characterized by this. In the construction method of the fireproof partition structure in which a pair of partition walls having fireproof performance are attached to the studs,
A first step of attaching one or more layers of a board-like refractory material in advance to the surface of one of the pair of partition walls attached to the stud;
A fireproof partition structure comprising a second step of attaching a pair of partition walls to a stud so that the fireproof material attached in the first step faces a hollow portion formed between the partition walls. Construction method. In the construction method of the fireproof partition structure in which a pair of partition walls having fireproof performance are attached to the studs,
A first step of removing one of the existing partition walls;
The board-like refractory material is attached to the inner surface of the other partition wall facing the hollow portion formed between the partition walls and the partition wall or to the inner surface of the partition wall to be attached. Two steps,
The construction method of the fireproof partition structure characterized by including the 3rd process of attaching a partition wall to the removed side.

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