JP7299569B1 - Interlayer closing structure, interlayer material support device, and interlayer closing method - Google Patents

Abstract

An interlayer closing structure, an interlayer material support device, and an interlayer closing method are provided that can reduce the possibility that an interlayer material will fall off.
An interlaminar supporting device (1) is attached to a deformable and fire-resistant double fire-resistant sheet (21) and an inner surface of the deformable and shape-retaining double fire-resistant sheet (21). The support member 2 is configured to include a support member 2 having a deformation assisting member 22, and the support member 2 is composed of a fixing portion 21a fixed to the upper surface of the floor 200 on the gap side end portion forming the interlayer gap G, and a fire-resistant interlayer material 4. A supporting portion 21b formed in a bag shape covering the lower portion of the support portion 21b and a covering portion 21c covering the opening of the supporting portion 21b are continuously formed.
[Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present invention relates to an interlayer closing structure, an interlayer closing member support device, and an interlayer closing method for preventing falling-off of a fire-resistant interlayer covering a gap between a floor and an outer wall of a building.

2. Description of the Related Art Conventionally, as an inter-layer material support device for supporting a fire-resistant inter-layer material, for example, a support device for a fire-resistant inter-layer material is disclosed in Patent Document 1.
Such a support device inserts a fireproof inter-layer material into the gap between the floor and the outer wall of the building, and supports this fire-resistant inter-layer material with a plurality of support fittings arranged at intervals in the longitudinal direction. is. The support metal fittings are composed of an upper end support portion arranged on the upper surface of the floor, an attachment portion hanging from the upper end support portion along the outer surface of the floor, and a lower end of the attachment portion bent outward so that the tip contacts the outer wall. The support portion is used to support the refractory interlayer material from the lower surface side.

Japanese Patent No. 4545965

However, in the technique of Patent Document 1, a plurality of support metal fittings are installed at predetermined intervals along the longitudinal direction of the inter-layer gap. As a result, for example, the inter-layer materials located between the supporting metal fittings may be partially torn and dropped by the heat of the fire, or the outer skin material that coats the inter-layer materials (core material) may melt due to the heat of the fire and spill the contents. There is a fear that
Therefore, the present invention has been made by paying attention to such unsolved problems of the conventional technology, and provides an interlayer closing structure and an interlayer material support device capable of reducing the possibility of the interlayer material falling off. and to provide an interlayer closing method.

[Invention 1] In order to achieve the above object, an interlayer material support structure of Invention 1 is an interlayer closing structure for closing a gap formed between a floor and a wall of a building, and comprises fire-resistant rod-shaped members. A fire-resistant interlayer material, a deformable and fire-resistant fire-resistant sheet, and a support member having a deformable and shape-retaining deformation auxiliary member attached to one surface of the fire-resistant sheet. The support member is arranged in the gap so as to be able to support the fire-resistant interlayer material, and the support member moves from one end on the floor side to the other end on the wall side or from the other end on the wall side to the one end on the floor side. A fixed part arranged on the upper surface of the gap side end part of the floor or on the wall surface above the gap in the wall and at least partly fixed to the floor surface or the wall surface, and the part ahead of the fixed part is deformed. The refractory interlaminar material filled inside the support portion, which is composed of a support portion arranged to form a valley in the gap and a portion ahead of the support portion, from above the support portion has a cover covering the opening of the

[Invention 2] On the other hand, in order to achieve the above object, an interlayer material supporting device of Invention 2 is provided for preventing falling-off of a fire-resistant interlayer material arranged in a gap formed between a floor and a wall of a building. An interlaminar support device comprising: a support member having a deformable and fire-resistant refractory sheet and a deformable and shape-retaining deformation assisting member attached to one surface of the refractory sheet; The support member includes a fixing portion fixed to a floor surface or a wall surface, a support portion formed in the shape of a bag covering the lower part of the fireproof interlayer material, and a covering portion covering an opening of the support portion. be continuous.

[Invention 3] Further, in the interlayer material supporting device of Invention 3, in the interlayer material supporting device of Invention 2, the deformation assisting member is composed of a member having fire resistance higher than that of the fire resistant sheet. .
[Invention 4] Further, in the interlayer material support device of Invention 4, in the interlayer material support device of Invention 2 or 3, the fixed portions are arranged at a plurality of positions spaced apart from each other by a predetermined distance along the longitudinal direction of the fixed portions. It is partially fixed to the floor surface or the wall surface, and the fixing portion is provided with a plurality of fixing marks provided at predetermined intervals along the longitudinal direction of the fixing portion.

[Invention 5] In order to achieve the above object, an interlayer closing method of invention 5 is an interlayer closing method for closing a gap formed between a floor and a wall of a building, and is deformable. A support member having a fire-resistant sheet having fire resistance and a deformable and shape-retaining support member attached to one surface of the fire-resistant sheet is prepared, and the support member is installed in the gap. a first step of fixing a fixed portion, which is one end of the support member when the a second procedure of disposing a supporting portion formed by deforming the tip portion into a bag shape so as to form a valley in the gap in the gap; a third procedure of filling a rod-shaped fire-resistant interlayer material having fire resistance; and a fourth step of covering the opening of the support.

As described above, according to the interlayer closing structure of the first aspect of the invention, the support member arranged in the gap can support the entire or substantially the entire fire-resistant interlayer material filled inside the gap. It is possible to reduce the possibility that the material will fall to the lower floor or the like. In addition, since the shape of the support member 2 after deformation can be maintained by the deformation assisting member, the shape of the support member 2 can be easily deformed according to the shape of the interlayer gap, and workability is improved due to shape retention. can be improved.

According to the interlayer material support device of invention 2, the same function and effect as invention 1 can be obtained.
According to the interlayer material support device of invention 3, since the deformation assisting member is made of a member having fire resistance higher than that of the fire resistant sheet, even if the fire resistant sheet melts down due to the heat of the fire, the deformation will occur. Since the auxiliary member remains unburned and prevents the fire-resistant interlayer material from falling, it is possible to reduce the possibility that the fire-resistant interlayer material will fall off when a fire occurs.
Furthermore, according to the interlayer member support device of the fourth aspect, the fixation position can be visually grasped by the fixation mark, so that it is possible to reduce the labor involved in the fixation work of the fixation part.

Furthermore, according to the interlayer closing method of invention 5, the same function and effect as invention 1 can be obtained.

FIG. 4 is a side view showing an example of an interlayer closing structure for closing an interlayer gap G using the interlayer material supporting device 1 according to the present embodiment, and in the figure, a wall panel 100 and a floor 200 are shown in cross section. (a) is a diagram showing an example of a support member 2, and (b) is a sectional view taken along line A-A' of (a). (a) is a diagram showing the configuration of a fire-resistant interlayer material 4, and (b) is a perspective view showing a state in which the fire-resistant interlayer material 4 is supported by a supporting member 2. FIG. (a) is a partial front view showing an example of blocking the interlayer gap G using the interlayer material support devices 1A to 1C, and (b) is a partial front view showing the interlayer gap G using the interlayer material support devices 1A to 1C. is a partial side view showing an example of blocking the . In (a) and (b) of the figure, the left side of the slanted line is exposed and displayed. 4(a) to 4(d) are plan views for explaining a construction procedure for blocking the interlayer gap G with the single interlayer material support device 1, and in the same drawing, the wall panel 100 is shown in cross section. . (a) to (d) are plan views for explaining the construction procedure when the interlayer gap G is cut off using the interlayer material support devices 1A and 1B, in which the wall panel 100 is shown in cross section. there is (a) is a simplified diagram showing a structural example in the case of closing a relatively narrow interlayer gap Gn using the interlayer material support device 1, and (b) and (c) show fixing members 3A and 3B. It is a simplified diagram showing an example in the case of fixing the support member 2A using. (a) to (c) are simplified diagrams showing a construction example in which the fixing portion 21a of the supporting member 2D is fixed to the wall surface using the interlayer supporting device 1C.

〔composition〕
Embodiments of the present invention will be described below. 1 to 4 are diagrams showing embodiments.
FIG. 1 is a side view showing an example of an inter-layer closing structure for closing an inter-layer gap G using an inter-layer material support device 1 according to the present embodiment. In the same figure, a wall panel 100 and a floor 200 are shown in cross section. . 2(a) is a diagram showing an example of the support member 2, and FIG. 2(b) is a cross-sectional view taken along the line AA' of FIG. 2(a). 3(a) is a diagram showing the configuration of the fire-resistant interlayer material 4, and FIG. 3(b) is a perspective view showing a state in which the fire-resistant interlayer material 4 is supported by the supporting member 2. As shown in FIG. Further, FIG. 4(a) is a partial front view showing an example of blocking the interlayer gap G using the interlayer material support devices 1A to 1C, and FIG. 4(b) is the interlayer material support devices 1A to 1C. is a partial side view showing an example of blocking an interlayer gap G using . In (a) and (b) of the figure, the left side of the slanted line is exposed and displayed.

As shown in FIG. 1, the inter-layer material support device 1 of the present embodiment is for closing the inter-layer gap G secured between the wall panel 100 which is the outer wall of the building and the floor 200 of the building. be.
An interlayer gap G (hereafter simply referred to as "gap G") is essential for the flexible structure of a building to avoid constrained bonding between the building floor 200 and the wall panels 100 (e.g., curtain walls). It is. However, if a fire breaks out in the building, there is a risk that high-temperature smoke or flames will travel from the lower floors to the upper floors through the gap G. Therefore, the gap G is cut off by the interlayer material supporting device 1 and the fire-resistant interlayer material 4 (hereinafter simply referred to as "interlayer material 4").

The interlayer material support device 1 includes a support member 2 as shown in FIG.
As shown in FIGS. 1, 2(a) and 2(b), the support member 2 has a length dimension corresponding to the longitudinal length of the gap G, and is made of, for example, aluminum glass cloth (ALGC). A double refractory sheet 21 having a structure in which refractory sheets that are easily deformable and have fire resistance are formed into a double structure is provided.
The double refractory sheet 21 is configured by, for example, stacking two refractory sheets. In this embodiment, as shown in FIG. 2(b), one fireproof sheet is folded in half and one end and the other end are connected. The connecting portion is configured by, for example, overlapping the inner surface of one end with the outer surface of the other end, fixing the overlapped portion with an adhesive, and covering the joint portion with an aluminum tape 25 .

Note that the double fireproof sheet 21 is not limited to ALGC, and may be made of other materials having fire resistance and flame retardancy, such as vinyl chloride or polyethylene sheets, as long as they are deformable. , may be configured by combining a plurality of types of materials having fire resistance and flame retardancy.
1, 2(a) and 2(b), the support member 2 is attached planarly to the inner surface of the double refractory sheet 21, and is easily deformable and retains its shape. A mesh-shaped deformation assisting member 22 is provided. The deformation auxiliary member 22 is formed by weaving fine wires of a refractory metal having fire resistance higher than that of the double refractory sheet 21 in a mesh shape (for example, a tortoiseshell mesh shape), and is adhered while maintaining its deformability. It is fixed to the inner surface by an agent or the like. That is, the deformation assisting member 22 is configured to be easily deformable together with the double fireproof sheet 21 . Also, the shape retention (plasticity) of the deformation assisting member 22 enables the double refractory sheet 21 to retain its shape after deformation. In addition, as long as it satisfies the conditions of deformability and fire resistance, it may be composed of a material other than metal or a mixed material of metal and other materials. Further, the deformation assisting member 22 is not limited to the mesh-like structure, and may have a sheet-like structure other than the mesh-like structure.

The support member 2 configured as described above is arranged in the gap G so as to be able to support the interlayer member 4 .
Here, as shown in FIG. 1, the support member 2 is configured from one end portion on the side of the floor 200 and is arranged on the upper surface of the end portion of the floor 200 in a state where the interlayer material 4 is arranged in the gap G so as to be able to be supported. A fixed portion 21a and a support portion 21b formed by deforming a portion beyond the fixed portion 21a into a bag shape (a U-shaped cross section in the example of FIG. 1) and arranged so as to form a valley inside the gap G. and In addition, it has a cover portion 21c that is configured from a portion ahead of the support portion 21b and that covers the opening formed by the support portion 21b from above and is fixed to the fixing portion 21a.

In other words, the support member 2 is configured to be deformed by bending itself according to the width of the gap G, thereby forming the fixing portion 21a, the support portion 21b, and the covering portion 21c. In the present embodiment, the supporting member 2 has a covering portion 21c whose length in the transverse direction is substantially fixed by the length of the glass mat 23 in the transverse direction, as shown in FIGS. It's becoming On the other hand, the lengths of the fixed portion 21a and the support portion 21b in the lateral direction can be changed according to the width of the gap G within a range in which the covering portion 21c can be fixed to the fixed portion 21a. .

1, 2(a) and 2(b), the deformation assisting member 22 is positioned inside the double refractory sheet 21 at the fixing portion 21a and the supporting portion 21b and part of the covering portion 21c. and is attached so as to be sandwiched between one sheet portion and the other sheet portion forming a double structure.
1 and 2(a) and (b), the support member 2 further includes a glass mat 23 attached to the inner side of the covering portion 21c of the double refractory sheet 21; A plurality of fixing fittings 24 are attached to the outer side of the fixing portion 21a of the heavy fireproof sheet 21 at predetermined intervals along the longitudinal direction.

The glass mat 23 has a rectangular plate shape and is made of a fire-resistant material such as glass fiber. The glass mat 23 is attached to the position of the covering portion 21c inside the double fireproof sheet 21 so as to be sandwiched between one sheet portion and the other sheet portion forming the double structure. Specifically, as shown in FIG. 2(b), the glass mat 23 is fixed to at least one of the inner surfaces of the double refractory sheet with an adhesive, an adhesive tape, or the like.

Each of the fixing metal fittings 24 is a clip-like metal fitting made of a metal thin plate member, and is attached by sandwiching the fixing portion 21a from the outside. Here, the plurality of fixing metal fittings 24 serve as marks of respective fixing positions when fixing the fixing portion 21a partially.
On the other hand, as shown in FIG. 3( a ), the interlayer material 4 is composed of granular cotton 43 , which is fire-resistant inorganic fiber such as rock wool, covered with a polyethylene film 41 . It should be noted that the granular cotton 43 can be formed by reusing waste material of fire-resistant inorganic fibers such as rock wool. The interlayer material 4 can be relatively easily deformed according to the width and shape of the gap G. The interlayer material 4 is not limited to rock wool, and may be made of other fire-resistant inorganic fibers such as glass wool, alkaline earth silicate wool, and ceramic fibers. Further, the interlayer material 4 is not limited to granular cotton made of inorganic fibers, and may be made of a blanket made of inorganic fibers, for example. Further, when the interlayer material is formed by laminating inorganic fiber blankets, it may be used in an exposed state without being covered with the polyethylene film 41 or the like.

When the inter-layer material support device 1 and the inter-layer material 4 are used to close the gap G, as shown in FIGS. 21b and covering portion 21c.
Further, as illustrated in FIGS. 4A and 4B, the gap G is formed by a plurality of interlayer material support devices 1A, 1B and 1C and a plurality of interlayer materials 4A, 4B and 4C depending on the length in the longitudinal direction. may be blocked using
Specifically, the longitudinal lengths of the support members 2A, 2B and 2C are longer than the longitudinal lengths of the interlayer materials 4A, 4B and 4C, and the interlayer materials 4A and 4B and the interlayer materials 4B and 4C. At the connecting position CL, the supporting members 2A and 2B and the supporting members 2B and 2C are partially overlapped and connected. This overlap portion OL is fixed by, for example, an adhesive, a stapler, or the like.

In this way, when the gap G is cut off using a plurality of interlayer material support devices 1A to 1C, gaps are formed at the connection positions CL between the interlayer materials 4A and 4B and the connection positions CL between the interlayer materials 4B and 4C. occurs. If this gap is left untouched, hot smoke and flames from the lower floors may pass through to the upper floors. Therefore, as shown in FIGS. 1 and 4(a), a connecting auxiliary member 5 is used to close this gap. Here, the auxiliary connecting member 5 is, for example, similar to the inter-layer material 4, and has a structure in which a fire-resistant member such as rock wool is covered with a polyethylene film or the like.

Next, with reference to FIG. 1 and FIGS. 5(a) to 5(d), a description will be given of a procedure for closing the gap G with the single interlayer member support device 1 and the single interlayer member 4. FIG.
FIGS. 5(a) to 5(d) are plan views for explaining a construction procedure for blocking the interlayer gap G with the single interlayer material support device 1, and in the same drawings, the wall panel 100 is shown in cross section. ing.
First, the interlayer material 4 and the supporting member 2 having lengths corresponding to the length of the gap G in the longitudinal direction are prepared. Next, the portions of the fixing portion 21a to which the fixing metal fittings 24 are attached and their peripheral portions are adhered to the upper surface of the end on the side of the gap G of the floor 200 forming the gap G shown in FIG. (see Figure 1). At this time, for example, the end portion of the support member 2 on the side of the fixed portion 21a is laid on the upper surface of the end portion of the floor 200 in advance, and the portion of the fixed portion 21a is moved to the end portion of the floor 200 by the shape retention property of the deformation auxiliary member 22. By bending the fixing portion 21a using a corner or the like, the fixing operation can be easily performed while the fixing portion 21a is laid on the upper surface of the end portion.

Subsequently, as shown in FIG. 5B, the support member 2 is deformed according to the shape (width, etc.) of the gap G to determine the shape of the support portion 21b. Specifically, after fixing the fixing portion 21a, the portion of the support member 2 ahead of the fixing portion 21a and in front of the cover portion 21c is deformed into a U-shaped cross section and inserted into the gap G to insert the support portion. 21b (see FIG. 1). Thereby, as shown in FIGS. 1 and 5B, a valley is formed in the gap G by the support portion 21b. At this time, a depth sufficient for filling the interlayer material 4 (a depth at which the interlayer material 4 can be filled with a thickness of 50 [mm] or more) is secured as the depth of the valley.

Subsequently, as shown in FIG. 5(b), with the covering portion 21c leaning against the wall panel 100, the interlayer material 4 is placed inside the supporting portion 21b to a thickness of 50 as shown in FIG. 5(c). Fill so that it becomes [mm] or more.
Here, as a filling method, for example, a method of press-fitting the interlayer material 4 into the gap G to fill it, or a method of compressing the interlayer material 4 in advance to some extent according to the width of the gap G, and compressing the interlayer material in a compressed state. There is a method of press-fitting 4 into the gap G to fill it. The interlayer material 4 press-fitted into the gap G presses the refractory sheet wrapping itself against the wall panel 100 and the floor 200 by the restoring force, so that it is difficult to create a gap between the refractory sheet and the wall panel 100 or the floor 200.例文帳に追加can.
After filling the interlayer material 4, as shown in FIG. 5(d), the opening formed in the support portion 21b is covered with the covering portion 21c so as to cover the fixing metal fittings of the covering portion 21c. 24 and its peripheral portion are fixed to the upper surface of the fixing portion 21a with an adhesive 301 (see FIG. 1). As a result, the gap G is blocked by the interlayer material support device 1 and the interlayer material 4 .

Although not shown, in the installation configuration shown in FIG. may be installed at predetermined intervals. That is, a steel plate is installed in the gap G, and the interlayer material support device 1 is installed above it. This structure complies with the technical advice regarding the structural method of the curtain wall announced by the Ministry of Land, Infrastructure, Transport and Tourism on May 9, 2008. Also, the structure in which the interlayer material 4 is installed with a thickness of 50 [mm] or more follows this technical advice.

Further, in the present embodiment, the gap G can be closed using the common interlayer material support device 1 within a predetermined range of the width of the gap G (for example, a range of 40 [mm] to 150 [mm]). configured to allow
Next, with reference to FIGS. 6(a) to 6(d), a construction procedure for blocking the gap G with the interlayer material supporting devices 1A and 1B, the interlayer materials 4A and 4B, and the auxiliary connecting member 5 will be described.
FIGS. 6(a) to 6(d) are plan views for explaining the construction procedure when the inter-layer support devices 1A and 1B are used to block the gap G, in which the wall panel 100 is shown in cross section. ing.

First, two interlayer materials 4A and 4B, two supporting members 2A and 2B, and a connecting auxiliary member 5 having lengths corresponding to the length of the gap G in the longitudinal direction are prepared. At this time, the interlayer materials 4A and 4B are prepared with a length that can fill the gap G by connecting them in the longitudinal direction, and the support member 2B is considered to overlap the support member 2A. Then, a longer dimension than the supporting member 2A is prepared.
The shape corresponding to the gap G between the support members 2A and 2B is the same as when the support members 2A and 2B are installed singly, so description thereof is omitted.

When installing the support members 2A and 2B in the gap G, as shown in FIG. 6A, the support member 2B is installed first, and then the support member 2A is partially overlapped with the support member 2B. to install. Thereby, an overlap portion OL is formed. In addition, the portions of the supporting members 2A and 2B forming the overlapping portion OL are fixed with an adhesive or the like.
Subsequently, as shown in FIG. 6B, the interlayer materials 4A and 4B are arranged in the longitudinal direction inside the support portions 21b of the support members 2A and 2B and filled.

Subsequently, as shown in FIG. 6(c), the connecting auxiliary member 5 is filled from above into the gap generated at the connection position CL between the interlayer materials 4A and 4B.
After that, as shown in FIG. 6(d), the opening formed in the support portion 21b is covered with the cover portion 21c of the support members 2A and 2B so as to cover the connecting auxiliary member 5, and the cover portion 21c is formed. are fixed to the upper surface of the fixing portion 21a with an adhesive 301 (see FIG. 1). As a result, the gap G is blocked by the interlayer material supporting devices 1A and 1B, the interlayer materials 4A and 4B, and the auxiliary connecting member 5. As shown in FIG.

In the immediate vicinity of the overlapping portion OL of the fixing portion 21a of the support members 2A and 2B, a fixing metal fitting 24 is attached so as to sandwich the overlapping portion OL, and the peripheral portion including the overlapping portion OL is coated with an adhesive or the like. Make sure it is fixed (see FIGS. 4(a) and (b)).
[Effects of Embodiment]
Next, effects of the embodiment will be described.
In the present embodiment, the interlaminar support device 1 is provided inside the double structure of the easily deformable and fire-resistant double fire-resistant sheet 21 and the easily deformable and shape-retaining double fire-resistant sheet 21 . The support member 2 has a support member 2 having a deformation auxiliary member 22 attached to the surface of the floor 200, and the support member 2 includes a fixed portion 21a fixed on the surface of the floor 200 and a bag-like (in practice) covering the lower part of the interlayer material 4 The supporting portion 21b having a U-shaped cross section and the covering portion 21c covering the opening of the supporting portion 21b are continuously formed.

In addition, the inter-layer covering structure using the inter-layer supporting device 1 and the inter-layer member 4 having such a configuration is extended from one end of the supporting member 2 of the inter-layer supporting device 1 on the floor 200 side in the lateral direction to the other end on the wall panel 100 side. A fixing portion 21a arranged on the upper surface of the end portion of the floor 200 on the side of the gap G toward the end portion and partially fixed to the floor surface, and a valley formed in the gap G by deforming the portion ahead of the fixing portion 21a. A cover that covers the opening of the support part 21b from above the interlayer material 4 filled inside the support part 21b, which is composed of the bag-like support part 21b and the part ahead of the support part 21b arranged to form a The structure has a part.

With such a configuration, the support member 2 arranged in the gap G can support the entire or substantially the entire inter-layer material 4 filled inside, so that the inter-layer material 4 falls off to the lower floor or the like. Possibility can be reduced. In addition, since the shape of the support member 2 after deformation can be maintained by the deformation assisting member 22, the shape of the support member 2 can be easily deformed according to the shape of the gap G, and the shape can be easily maintained. can improve sexuality.
Further, in the present embodiment, the deformation assisting member 22 of the interlaminar support device 1 is made of a member having fire resistance higher than that of the double fire-resistant sheet 21 .

With such a structure, even if the double refractory sheet 21 melts down due to the heat of a fire, the auxiliary deformation member 22 remains unburned to prevent the inter-layer material 4 from falling, so that the inter-layer material 4 falls off when a fire occurs. can reduce the likelihood of
Further, in the present embodiment, the interlayer member support device 1 is configured to include a plurality of fixing metal fittings provided at predetermined intervals along the longitudinal direction of the fixing portion 21a of the support member 2 . With such a configuration, it is possible to visually grasp the fixing position of the fixing portion 21a, so that it is possible to reduce the trouble of fixing the fixing portion 21a.

Further, in the present embodiment, the interlayer material supporting device 1 is configured to include the double fireproof sheet 21 having a double structure of fireproof sheets. With such a configuration, in addition to improving fire resistance, the deformation assisting member 22 can be arranged inside the double structure, so that the material, shape, etc. of the deformation assisting member 22 can be designed relatively freely. For example, it is possible to select a material and a shape that would cause injury to the builder if exposed.
Further, in the present embodiment, the deformation assisting member 22 of the interlayer supporting device 1 is composed of a metal mesh formed of fine wires of a refractory metal. With such a configuration, the deformation assisting member 22 can be configured from a relatively small amount of material when configuring the deformation assisting member 22 from a metal member having excellent fire resistance and having a relatively high cost, so that the product cost can be suppressed. can be done.

Further, in the present embodiment, the interlayer material supporting device 1 is configured to include the glass mat 23 attached to the inner surface of the double refractory sheet 21 . With such a structure, the glass mat 23 can stop the high-temperature smoke and flame breaking through the interlayer material 4 by the glass mat 23, thereby delaying the arrival of the smoke and flame to the upper floors. be able to.
Further, in the present embodiment, the interlayer material 4 is configured to be easily deformable. Therefore, by deforming the interlayer material 4 together with the support member 2, the interlayer material 4 can also be flexibly adapted to various gap widths of the interlayer gap G. can correspond to

[Correspondence]
In the above embodiment, the double fire-resistant sheet 21 corresponds to the fire-resistant sheets of Inventions 1 to 3 and 5, and the fixing fitting 24 corresponds to the fixing mark of Invention 4.
[Modification]
In the above-described embodiment, the fixing portion 21a of the support member 2 is fixed to the upper surface of the end portion of the floor 200 using the adhesive 300, but the structure is not limited to this. For example, it may be fixed by a stapler or other fixing member.
In addition, in the above-described embodiment and its modified example, the adhesive 301 is used to fix the covering portion 21c of the support member 2 to the upper surface of the fixing portion 21a, but the present invention is not limited to this structure. For example, it may be fixed by another fixing member such as a stapler. As another fixing member, for example, a claw portion is provided on the surface of the covering portion 21c facing the upper surface of the fixing portion 21a, and a claw receiving portion is provided on the upper surface of the fixing portion 21a at the fixing position. A configuration using an engaging member, such as fixing by hooking the portion to the claw receiving portion, may be mentioned.

Further, in the above-described embodiment and its modification, the length of the covering portion 21c of the supporting member 2 in the lateral direction is fixed, and the fixing portion 21a and the supporting portion 21b are shaped and lengthed according to the shape of the gap G. Although a configuration example has been described, the configuration is not limited to this. Here, FIG. 7(a) is a simplified diagram showing a structural example in which the interlayer material support device 1 is used to close the interlayer gap Gn having a relatively narrow width.
For example, the lengths of the fixing portion 21a and the covering portion 21c may be fixed, and the shape of the supporting portion 21b may be changed according to the width of the gap G. A configuration in which the depth can be varied may also be used. For example, in a configuration in which the length and shape of the fixed portion 21a and the support portion 21b can be changed, as shown in FIG. The length may be set longer so that when the covering portion 21c is used as a lid, the covering portion 21c overlaps the upper surface of the fixing portion 21a exactly. With this configuration, it is possible to prevent the non-fixed portion of the covering portion 21c from being turned over when the length of the fixing portion 21a is too short relative to the length of the covering portion 21c.

In addition, in the above-described embodiment and its modification, an example in which the fire-resistant sheet constituting the interlayer material support device 1 has a double structure has been described. Alternatively, a multi-layered structure of three or more layers may be used as long as the necessary deformability is not impaired. When it is composed of one fire-resistant sheet, the deformation assisting member 22 is attached to one surface of the fire-resistant sheet, for example. Further, for example, in the case of a triple structure, the deformation assisting member 22 is attached to at least one of one surface side and the other surface side of the middle sheet.

In addition, in the above-described embodiment and its modification, the fixing metal fitting 24 is provided as a mark for fixing at the fixing position of the fixing portion 21a, but the present invention is not limited to this structure. For example, a configuration in which a mark is provided by coloring or the like, or a configuration in which a mark is provided not only by a metal member but also by another member such as plastic may be employed.
In addition, in the above-described embodiment and its modification, the configuration in which the glass mat 23 is provided on the covering portion 21c has been described as an example. Alternatively, a configuration in which a fire-resistant member that is more easily deformable than the glass mat 23 is provided may be employed. Here, in the case where the covering portion 21c is not provided with the fire-resistant member such as the glass mat 23, the deformation assisting member 22 may be provided up to the covering portion 21c.

In the above-described embodiment and its modification, the fixing portion 21a of the support member 2 is directly fixed to the upper surface of the end portion of the floor 200 with the adhesive 300, and the covering portion 21c is directly applied to the upper surface of the fixing portion 21a. Although the structure fixed by 301 was demonstrated, it does not restrict to this structure. Here, FIGS. 7B and 7C are simplified diagrams showing an example of fixing the support member 2A using the fixing members 3A and 3B.
For example, as shown in FIG. 7B, it may be fixed using a fixing member 3A. The support member 2A has a configuration in which the glass mat 23 is removed from the support member 2, and the fixing member 3A includes a first fixing metal fitting 31 and a second metal plate which are formed by processing a rectangular metal plate into an L-shaped cross section. A fixing metal fitting 32 is provided, and the first fixing metal fitting 31 is pressed from above the fixing part 21a with the short side facing downward, and is fixed to the end face of the floor 200 with a screw 33. - 特許庁Furthermore, the tip of the covering portion 21c is superimposed on the upper surface of the first fixing member 31, and the long side of the second fixing member 32 is pressed against the upper surface of the covering portion 21c with the short side facing upward, The short side is screwed to the wall panel 100 with screws 33, and the long side is screwed and fixed to the end upper surface of the floor 200 together with the covering portion 21c, the fixing bracket 31 and the fixing portion 21a. This configuration allows the support member 2 to be firmly fixed to the wall panel 100 and the floor 200 . Even when this fixing method is used, the gap G is fixed at a plurality of locations along the longitudinal direction at predetermined intervals.

Further, for example, as shown in FIG. 7(c), it may be configured to be fixed by a fixing method using both fixing by the fixing member 3B and direct fixing by an adhesive or the like.
In the example of FIG. 7(c), the fixing member 3B includes only the second fixing bracket 32 and the screws 33 and 34. As shown in FIG. First, the fixing part 21a is directly fixed to the upper surface of the end part of the floor 200 with an adhesive or the like, the tip of the covering part 21c is overlapped on the upper surface of the fixing part 21a, and the second fixing metal fitting 32 is placed on the upper surface of the covering part 21c. The long side is pressed against the wall panel 100 with the short side facing upward, the short side is screwed to the wall panel 100 with screws 33, and the long side is screwed with the covering portion 21c and the fixing portion 21a to the floor. It is screwed and fixed to the upper surface of the end of 200 . This configuration allows the support member 2 to be firmly fixed to the wall panel 100 and the floor 200 . Even when this fixing method is used, the gap G is fixed at a plurality of locations along the longitudinal direction at predetermined intervals.

In addition, in the above-described embodiment and its modification, the fixing portion 21a of the support member 2 is fixed to the floor surface of the floor 200, but the present invention is not limited to this structure. may be Here, FIGS. 8(a) to 8(c) are simplified diagrams showing an example of construction when fixing the fixing portion 21a of the support member 2D to the wall surface of the wall panel 100 using the interlayer support device 1D.
For example, as shown in FIG. 21a may not be fixed to the floor. In such a case, the support member 2D of the interlayer support device 1D is used to fix the fixing portion 21a to the wall surface above the gap G of the wall panel 200. As shown in FIG. Here, like the support member 2, the support member 2D has a fixing portion 21a, a support portion 21b, and a covering portion 21c. In addition, it has a fixing end portion 21d provided by extending the tip portion beyond the glass mat 23 of the covering portion 21c.
That is, as shown in FIG. 8(a), first, the fixing portion 21a of the support member 2D is fixed to the wall surface above the gap G by an adhesive, a stapler, a bolt, or the like, and the support portion 21b is bag-shaped (crosswise). ) and placed in the gap G. Subsequently, as shown in FIG. 8B, the interlayer material 4 is filled inside the supporting portion 21b. Subsequently, as shown in FIG. 8(c), the covering portion 21c covers the opening of the support portion 21b from above, and the fixing end portion 21d is bent upward and placed on the fixing portion 21a fixed to the wall surface. Fix with adhesive, stapler, bolts, etc.

Further, in the above-described embodiment and its modification, when the gap G is cut off by using the plurality of interlayer member support devices 1 and the plurality of interlayer members 4, the connecting auxiliary member 5 is used in the gap generated at the connection portion of the interlayer members 4. However, the configuration is not limited to this. Here, the gap generated in the connecting portion is caused by the roundness of the longitudinal end portion formed by the granular cotton 43 forming the interlayer material 4 . Therefore, for example, by forming the interlayer material from an inorganic material having another structure such as a blanket of inorganic material, the roundness of the end portion is eliminated, and the gap at the connection portion is eliminated or reduced, thereby eliminating the need for the auxiliary connecting member 5. It is good also as a structure which carries out.
Further, in the above embodiment and its modification, when blocking the gap G using the plurality of interlayer material support devices 1A to 1C and the plurality of interlayer materials 4A to 4C, the support members 2A to 2C are adjacent to each other in the longitudinal direction. When the ends of the two are connected to each other, one is overlapped with the other for connection. Not limited to this configuration, for example, the ends of the support member 2 in the longitudinal direction are overlapped, for example, by fitting the end faces of the ends in the longitudinal direction and connecting them with a stapler or the like and covering the connection portion with a heat-resistant tape or the like. A configuration in which connections are made without wrapping may be adopted.

In addition, in the above-described embodiment and its modification, the support member 2 and the interlayer member 4 are configured as independent members and separately installed in the gap G, but the configuration is not limited to this. For example, the supporting member 2 and the interlayer member 4 may be integrated (for example, integrated in a state as shown in FIG. 3B) in advance at a factory or the like. For example, it is possible to eliminate the overlapping portion OL by integrating a plurality of interlayer materials 4 so as to surround them with one support member 2. Further, for example, the integrated state can be manually handled from the outside. By compressing the interlayer material 4 in , the compressed state is maintained by the shape maintenance effect of the deformation assisting member 22 of the support member 2, so that the work of inserting the support member 2 into the gap G is facilitated.
In addition, in the above-described embodiments and modifications thereof, an example in which the interlayer material supporting device 1, 1A to 1D of the present invention is applied to the gap G between the wall panel 100 and the floor 200 constituting the outer wall will be described. However, without being limited to this configuration, a configuration in which the inter-layer support devices 1, 1A to 1D of the present invention are applied to the gaps formed between the inner wall and the floor of the building may be adopted.

In addition, in the above-described embodiment and its modification, when the gap G is blocked by using the plurality of support members 2 and the plurality of interlayer members 4, the gap generated at the connection portion between the interlayer members 4 is eliminated by the connecting auxiliary member 5. Although it was set as the structure which closes using, it is not restricted to this structure. For example, the connecting portions (ends) of the plurality of interlayer members 4 may be butted against each other by human power, compressed, and connected to close the gaps generated in the connecting portions. At this time, for example, in the case where the interlayer material has a structure in which inorganic fibers are wrapped in a flame-retardant film, the content (inorganic fiber portion) may be partially exposed at the connection portion and pressed against each other. Specifically, at the end where each support member 2 and each interlayer member are connected, the inorganic fibers forming the interlayer member from the support member 2 are pressed against each other with a portion (for example, about 10 mm) projecting outward. do. The connecting portion of the interlayer material may be pressed after being inserted into the gap G, the connecting portion of the interlayer material may be inserted into the gap G after being pressed, or the gap G may be pressed while the connecting portion of the interlayer material is pressed. can be inserted into

Reference Signs List 1, 1A to 1D... Interlayer material support device 2, 2A to 2D... Support member 3A, 3B... Fixing member 4... Fire resistant interlayer material 5... Auxiliary connecting member 21... Double fireproof sheet 21a... Fixing part 21b Supporting part 21c Covering part 21d Fixing end part 22 Deformation auxiliary member 23 Glass mat 24 Fixing metal fitting 31 First fixing metal part 32 Second fixing metal part , 33, 34... screw, 41... polyethylene film, 43... granular cotton

Claims (7)

An interlayer closing structure for closing a gap formed between a floor and a wall of a building,
A rod-shaped fire-resistant interlayer material having fire resistance;
A support member having a deformable and fire-resistant fire-resistant sheet and a deformable and shape-retaining support member attached to one surface of the fire-resistant sheet,
The support member is arranged on the wall surface above the gap between the walls from one end on the wall side toward the other end on the floor side in a state where the support member is arranged in the gap so as to be able to support the fireproof interlayer material. a fixed portion at least partially fixed to the wall surface , a support portion configured by deforming the portion ahead of the fixed portion and arranged so as to form a valley in the gap, and a portion ahead of the support portion An interlayer closing structure, comprising: a covering portion covering an opening of the supporting portion from above the refractory interlayer material filled inside the supporting portion. An interlayer closing structure for closing a gap formed between a floor and a wall of a building,
A rod-shaped fire-resistant interlayer material having fire resistance;
A support member having a deformable and fire-resistant fire-resistant sheet and a deformable and shape-retaining support member attached to one surface of the fire-resistant sheet,
The support member extends from one end on the floor side to the other end on the wall side or from the other end on the wall side toward the one end on the floor side in a state where the support member is arranged in the gap so as to be able to support the fireproof interlayer material. a fixing portion arranged on the upper surface of the gap side end of the floor or on the wall surface above the gap between the walls and at least a part of which is fixed to the floor surface or the wall surface; An opening of the supporting part from above the refractory interlayer material filled inside the supporting part, which is composed of a supporting part arranged to form a valley in the gap and a part ahead of the supporting part. Having a covering part covering the part,
The interlayer closing structure , wherein the supporting member is not fixed to the end surface of the floor or the wall surface . An interlayer closing structure for closing a gap formed between a floor and a wall of a building,
A rod-shaped fire-resistant interlayer material having fire resistance;
It has a deformable and fire-resistant fire-resistant sheet and a deformable and shape-retaining fire-resistant member attached to one surface of the fire-resistant sheet, wherein the deformation auxiliary member is the fire-resistant a support member made of a member having fire resistance higher than that of the sheet ,
The support member extends from one end on the floor side to the other end on the wall side or from the other end on the wall side toward the one end on the floor side in a state where the support member is arranged in the gap so as to be able to support the fireproof interlayer material. a fixing portion arranged on the upper surface of the gap side end of the floor or on the wall surface above the gap between the walls and at least a part of which is fixed to the floor surface or the wall surface; An opening of the supporting part from above the refractory interlayer material filled inside the supporting part, which is composed of a supporting part arranged to form a valley in the gap and a part ahead of the supporting part. An interlayer closing structure characterized by having a covering portion that covers the portion. An interlayer closing structure for closing a gap formed between a floor and a wall of a building,
A rod-shaped fire-resistant interlayer material having fire resistance;
A support member having a deformable and fire-resistant fire-resistant sheet and a deformable and shape-retaining support member attached to one surface of the fire-resistant sheet,
The support member extends from one end on the floor side to the other end on the wall side or from the other end on the wall side toward the one end on the floor side in a state where the support member is arranged in the gap so as to be able to support the fireproof interlayer material. a fixing portion arranged on the upper surface of the gap side end of the floor or on the wall surface above the gap between the walls and at least a part of which is fixed to the floor surface or the wall surface; An opening of the supporting part from above the refractory interlayer material filled inside the supporting part, which is composed of a supporting part arranged to form a valley in the gap and a part ahead of the supporting part. Having a covering part covering the part,
The fixed part is partially fixed to the floor surface or the wall surface at a plurality of positions spaced apart from each other by a predetermined distance along the longitudinal direction of the fixed part,
An interlayer closing structure , wherein a plurality of fixing marks are provided on the fixed portion at predetermined intervals along the longitudinal direction of the fixed portion. An inter-layer support device for preventing fallout of a fire-resistant inter-layer material placed in a gap formed between a floor and a wall of a building,
A support member having a deformable and fire-resistant fire-resistant sheet and a deformable and shape-retaining support member attached to one surface of the fire-resistant sheet,
The support member has a fixed portion fixed to the floor surface or wall surface, a support portion formed in a bag shape covering the lower part of the fireproof interlayer material, and a cover portion covering the opening of the support portion. serve,
The interlayer material supporting device, wherein the deformation assisting member is composed of a member having fire resistance higher than that of the fire resistant sheet . An inter-layer support device for preventing fallout of a fire-resistant inter-layer material placed in a gap formed between a floor and a wall of a building,
A support member having a deformable and fire-resistant fire-resistant sheet and a deformable and shape-retaining support member attached to one surface of the fire-resistant sheet,
The support member has a fixed portion fixed to the floor surface or wall surface, a support portion formed in a bag shape covering the lower part of the fireproof interlayer material, and a cover portion covering the opening of the support portion. serve,
The fixing part is partially fixed to the floor surface or the wall surface at a plurality of positions spaced apart from each other by a predetermined distance along the longitudinal direction of the fixing part,
An inter-layer material supporting device , wherein the fixed portion is provided with a plurality of fixing marks provided at predetermined intervals along the longitudinal direction of the fixed portion. An interlayer closing method for closing a gap formed between a floor and a wall of a building,
When installing a support member having a deformable and fire-resistant fire-resistant sheet and a deformable and shape-retaining support member attached to one surface of the fire-resistant sheet in the gap a first step of fixing a fixed portion, which is one end of the support member, to the upper surface of the gap-side end of the floor or the wall surface above the gap of the wall;
a second step of arranging, in the gap, a support portion formed by deforming a portion of the support member beyond the fixed portion into a bag shape so as to form a valley in the gap;
a third step of filling a rod-shaped refractory interlayer material having fire resistance inside the support portion arranged in the gap;
and a fourth step of covering the opening of the support portion filled with the refractory interlayer material with a covering portion that is the other end portion of the support member ahead of the support portion. An interlayer closing method.

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