JP2006257752A - Fire resistive construction of wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fire resistive construction of a wall constituted by mounting a two-ply fire resistive face plate on a wall surface provided with higher fire resisting performance. <P>SOLUTION: In the fire resistive construction of the wall formed by mounting the fire resistive face plate on the wall surface of a wall panel 1 as the wall, a plurality of inside fire resistive face plates 2, metal foil 3 mounted on the outside of the inside fire resistive face plates 2 and a plurality of outside fire resistive face plates 4 mounted on the outside of the metal foil 3 are provided to the wall surface, and it is so constituted that the metal foil 3 is partially adhered to the outside fire resistive face plates 4 with an adhesive 31. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a fireproof structure for a wall.

A refractory surface material made of gypsum board or the like is usually attached to the wall surface of a building such as a house. In order to further improve the fire resistance, the refractory surface material may be attached twice. An example of this technique is described in Patent Document 1, for example.
That is, in the technique described in Patent Document 1, a plurality of columnar studs arranged at regular intervals between an upper runner and a lower runner, and a double-layered gypsum board attached to both sides of the stud ( Refractory face material). Of the two layers, the inner gypsum board is attached to the stud using a tapping screw or the like, and the outer gypsum board is attached to the lower gypsum board using staples or the like.
JP 2001-193182 A (page 5, FIG. 1)

  By the way, in a fire, the flame may concentrate on some refractory face materials, and without increasing the thickness of the refractory face material against such a local flame, the wall having higher fire resistance performance A fireproof structure is desired.

  An object of the present invention is to provide a fireproof structure for a wall, which has a higher fireproof performance, and is formed by attaching two fireproof face materials to a wall surface.

  In order to solve the above-mentioned problem, the invention described in claim 1 is directed to a wall fireproof structure (for example, a wall fireproof structure 100) in which a fireproof face material is attached to a wall surface (for example, a wall panel 1). A plurality of inner refractory surface materials (for example, inner refractory surface material 2), a metal foil (for example, metal foil 3) attached to the outer surface of the inner refractory surface material, and an outer surface of the metal foil. A plurality of attached outer refractory face materials (eg, outer refractory face material 4), and the metal foil is partially bonded to the outer refractory face material by an adhesive (eg, adhesive 31). It is characterized by being.

  The invention according to claim 2 is the wall fireproof structure according to claim 1, wherein the outer fireproof face material is thinner and has a larger area than the inner fireproof face material.

  According to a third aspect of the present invention, in the fireproof structure of a wall according to the first or second aspect, the inner refractory face material and the outer refractory face material have a rectangular plate shape, and the inner sides adjacent to each other. It is characterized in that the joints (for example, joints T1, T2) between the refractory face materials and the joints (for example, joint T3) between the outer refractory face materials adjacent to each other do not coincide with each other.

  The invention according to claim 4 is the fireproof structure for a wall according to any one of claims 1 to 3, wherein one of the inner fireproof face material and the outer fireproof face material is a horizontally long rectangular plate. None, the other has a vertically long rectangular plate shape, and these inner refractory face material and outer refractory face material are arranged so that their long sides are orthogonal to each other in plan view. And

  According to a fifth aspect of the present invention, in the fireproof structure for a wall according to the fourth aspect, the inner refractory face material has a horizontally long rectangular plate shape, and the outer refractory face material has a vertically long rectangular plate shape. The length of the long side of the inner refractory face material and the length of the short side of the outer refractory face material are each an integral multiple of a reference dimension.

  According to a sixth aspect of the present invention, in the fireproof structure of the wall according to the fifth aspect, the inner refractory face material is arranged such that the seams between the short sides are not continuous in the short side direction. Features.

  The invention according to claim 7 is the fireproof structure of a wall according to any one of claims 1 to 6, wherein a seam between the inner refractory faces adjacent to each other and the outer refractory faces adjacent to each other. Among these joints, a joint treatment agent having fire resistance (for example, tape 5 and putty 6) is attached to at least one of the joints.

  According to the first aspect of the present invention, the metal foil 3 is provided between the inner refractory face material 2 and the outer refractory face material 4 so that heat can be more easily transferred. Since the metal foil 3 is partially bonded to the outer refractory face material 4 by the adhesive 31, more heat is applied to the non-adhesion region 32 between the outer refractory face material 4 and the metal foil 3. There will be an air layer A that is difficult to convey. Accordingly, the air layer A between the outer refractory face material 4 and the metal foil 3 reduces the heat generated by the fire from being transmitted to the inside of the wall, and further the heat is transferred to the wall surface of the wall by the metal foil 3. It is thought that it can convey to the whole. That is, for example, even if a fire concentrates on some of the outer refractory face materials 4, fire damage to the wall can be dispersed by the metal foil 3 while being suppressed by the air layer A. Damage is further reduced, and higher fire resistance can be achieved without increasing the thickness of the fireproof face material.

  According to the second aspect of the present invention, since the outer refractory face material 4 is thinner and larger in area than the inner refractory face material 2, the seam T3 between the outer refractory face materials 4 can be reduced, and the outer refractory face material. The increase in the weight of 4 can be suppressed. Further, even if the inner refractory face material 2 is made thicker by the thickness of the outer refractory face material 4, the inner refractory face material 2 has a smaller area than the outer refractory face material 4. Can be suppressed.

  According to the third aspect of the invention, the seams T1 and T2 between the inner refractory face materials 2 adjacent to each other and the seam T3 between the outer refractory face materials 4 adjacent to each other do not coincide with each other. The joints T3 are located on the inner refractory face material 2, so that a step is hardly generated in the vicinity of the joint T3 between the adjacent outer refractory face materials 4. Therefore, when a cloth is affixed on these outer refractory face materials 4, it is possible to eliminate problems such as scratches or protrusions on the cloth along the seam T3, or the cloth being cut.

  According to the invention described in claim 4, it is a matter of course that the effect of the invention described in any one of claims 1 to 3 is obtained, and the inner refractory face material 2 and the outer refractory face material 4 are: Since the long sides are orthogonal to each other, the joint T2 between the inner refractory face members 2 and the joint T3 between the outer refractory face members 4 are perpendicular to each other without facing the same direction, and the joints overlap. It is possible to prevent a decrease in strength, which is a problem.

  According to the invention described in claim 5, the effect of the invention described in claim 4 can of course be obtained, and the total extension of the inner refractory face material 2 arranged via the joint T1 in the long side direction is obtained. Since the total extension of the outer refractory face material 4 arranged through the joint T3 in the short side direction becomes an integral multiple of the reference dimension, the inner refractory face material 2 and the outer refractory face material By setting the lateral length of the wall surface to be attached to 4 to an integral multiple of the reference dimension, the inner refractory face material 2 and the outer refractory face material 4 can be assigned in the lateral direction of the wall surface without any gaps.

  According to the invention described in claim 6, the effect of the invention described in claim 5 can be obtained, and the seam T1 between the short sides of the inner refractory face material 2 is continuous in the short side direction. Therefore, the surface to which the inner refractory face material 2 is attached becomes generally flat as compared with the case where the seam is continuous in the vertical direction. Therefore, it becomes difficult for the outer refractory face materials 4 to have a step near the joint T3. Therefore, when a cloth is affixed on these outer refractory face materials 4, it is possible to eliminate problems such as scratches and protrusions on the cloth along the seam T3, and the cloth being cut.

  According to the invention described in claim 7, it is needless to say that the effect of the invention described in any one of claims 1 to 6 can be obtained, and the joints T1, T2 between the adjacent inner refractory face materials 2, Since the joint treatment agent having fire resistance is attached to at least one of the joints T3 between the adjacent outer fire-resistant face materials 4, the fire resistance can be further improved, and the inner fire-resistant face material 2 and the outside When it is attached to any seam of the refractory face material 4, particularly high fire resistance can be realized.

  Hereinafter, the best mode of the fireproof structure of a wall according to the present invention will be described in detail with reference to the drawings. The scope of the invention is not limited to the illustrated example.

  In the wall fireproof structure 100, for example, as shown in FIGS. 1 and 2, a plurality of rectangular plate-like inner fireproof face materials 2 and inner fireproof surfaces are formed on the wall surface of a wall panel 1 as a wall joined in the lateral direction. A metal foil 3 attached to the outer surface of the face material 2 and a plurality of rectangular plate-like outer refractory face materials 4 attached to the outer surface of the metal foil 3 are provided.

  For example, as shown in FIGS. 2 and 3, the wall panel 1 as a wall is formed by assembling a saddle member 11 a into a rectangular frame shape, and assembling a vertical middle beam 11 b and a horizontal middle beam 11 c inside the rectangular frame. Heat insulation provided in a space formed by the frame 11, the plywoods 12 and 12 attached to both side surfaces of the frame 11, the eaves member 11a, the vertical intermediate beam 11b, the horizontal intermediate beam 11c, the plywoods 12 and 12, etc. It is composed of the material 13 and the like.

  Here, for example, if the reference dimension is 910 mm, the width of the wall panel 1 (the length in the left-right direction in the figure) is set to 910 mm as shown in FIG. 3, for example.

Specifically, for example, as shown in FIG. 3, the width of the frame 11 (that is, the length in the short side direction) is set to 910 mm.
The width of the plywood 12 (ie, the length in the short side direction) is about 910 mm, and the height of the plywood 12 (ie, the length in the long side direction) is the height of the frame 11 (ie, the length in the long side direction). And so on).
Then, by joining a plurality of wall panels 1 having a width (that is, a length in the short side direction) composed of the frame body 11 and the plywood 12 and the like, which is an integral multiple of the reference dimension (910 mm). A wall having a width (length in the left-right direction in the figure) is formed.

The plywood 12 is, for example, a wood composite adhesive panel.
The heat insulating material 13 is, for example, glass wool or rock wool. In particular, as the heat insulating material 13, glass wool is preferable because it has excellent heat insulating properties and hygroscopic properties, is light and easy to construct, and inexpensive.

For example, as shown in FIG. 2, the inner refractory face material 2 is attached to the plywood 12 as the wall surface. For example, as shown in FIG. 4, the inner refractory face material 2 has a horizontally long rectangular plate shape, and is formed of, for example, a reinforced gypsum board.
The thickness of the inner refractory face material 2 is set to 21 mm, for example. And, for example, the lateral length (that is, the length of the long side) of the inner refractory face material 2 is set to 1820 mm, and the length in the vertical direction (that is, the length of the short side) is set to 606 mm. Yes.

For example, as shown in FIG. 2, the plurality of inner refractory face materials 2 are attached to the frame body 11 through the plywood 12 and 12 and the plywood 12 of the wall panel 1 joined in the horizontal direction (left and right in the figure). It is attached by a suitable fixing method such as 21.
And, for example, as shown in FIG. 4, the inner side refractory face materials 2 adjacent to each other in the short side direction (vertical direction in the figure) It arrange | positions so that it may be located in the center part of the longitudinal direction of the refractory surface material 2. FIG. Accordingly, the inner refractory face materials 2 adjacent in the long side direction (left and right direction in the figure) are arranged in a staggered manner so that the joint T1 between the short sides is not continuous in the short side direction. On the other hand, the inner refractory face materials 2 adjacent to each other in the short side direction are arranged such that the joint T2 between the long sides is continuous in the long side direction.

A tape 5 and a putty 6 as a joint treatment agent having fire resistance are attached to the joints T1 and T2 between the inner fireproof face materials 2 adjacent to each other.
Specifically, for example, as shown in FIGS. 2 and 5, the tape 5 is attached so as to completely cover the joints T <b> 1 and T <b> 2 and the wood screw 21 along the joints T <b> 1 and T <b> 2 of the inner refractory face material 2. The putty 6 is applied so as to cover the entire outer surface of the tape 5.
The tape 5 may be a material having fire resistance and covering the joints T1 and T2, and examples thereof include a tape formed of glass fiber, ceramic material, refractory metal, and the like.
Examples of the putty 6 include a gypsum-based putty having fire resistance. Further, if the tape 5 has fire resistance, the putty 6 does not necessarily have fire resistance. For example, a putty having impregnation properties such as an epoxy resin may be used. In this case, the putty of the epoxy resin penetrates to the joints T1 and T2 through the tape 5, and the gap between the joints T1 and T2 is closed.

For example, as shown in FIGS. 1 and 2, a metal foil 3 is attached to the outer surface of the inner refractory face material 2 to which the tape 5 and the putty 6 are attached to the joints T1 and T2. Specifically, for example, as shown in FIG. 6, the metal foil 3 is attached so as to cover the entire inner refractory face material 2.
The thickness of the metal foil 3 is set to 0.05 mm, for example.
Examples of the metal foil 3 include an aluminum foil.

For example, as shown in FIGS. 2 and 6, an adhesive 31 is applied to a part of the outer surface of the metal foil 3 (that is, the surface opposite to the surface in contact with the inner refractory surface material 2). And the outer side refractory surface material 4 is attached to the outer surface of the metal foil 3 with which the adhesive agent 31 was apply | coated. That is, the metal foil 3 is partially bonded to the outer refractory face material 4 with the adhesive 31. And in the non-adhesion area | region 32 provided between the metal foil 3 and the outer side refractory surface material 4, the air layer A whose thickness is about 0.5-1 mm will exist.
Here, as a method of applying the adhesive 31, specifically, for example, as shown in FIG. 6, the adhesive 31 may be applied in a wavy line with a predetermined interval, or the adhesive 31 31 may be applied intermittently, or the adhesive 31 may be applied in a frame shape to a portion corresponding to the edge of the wall. In other words, any coating method may be used as long as the metal foil 3 is partially adhered to the inner surface of the outer refractory face material 4 and the non-adhesion region 32 is present evenly over the entire wall surface.

  Examples of the adhesive 31 include inorganic adhesives such as cyanoacrylate, polysulfide, and silicone.

The outer refractory face material 4 attached to the outer surface of the metal foil 3 has, for example, a vertically long rectangular plate shape as shown in FIG. 7, and is formed of, for example, a reinforced gypsum board.
The thickness of the outer refractory face material 4 is set to 15 mm, for example. And, for example, the lateral length (that is, the length of the short side) of the outer refractory face material 4 is set to 910 mm, and the length in the vertical direction (that is, the length of the long side) is set to 1820 mm. Yes.

  That is, the outer refractory face material 4 is thinner and larger in area than the inner refractory face material 2.

For example, as shown in FIG. 2, the plurality of outer refractory face materials 4 are fixed to the inner refractory face material 2 by staples 41.
For example, as shown in FIG. 8, the outer refractory face material 4 is arranged such that its long side is orthogonal to the long side of the inner refractory face material 2 in plan view. Further, the joint T3 between the long sides of the outer refractory face material 4 adjacent in the short side direction (left and right direction in the figure) is arranged so that the position does not coincide with the joints T1 and T2 between the inner refractory face materials 2. Yes.
That is, the inner refractory face material 2 and the outer refractory face material 4 are configured such that the joints T1 and T2 between the adjacent inner refractory face materials 2 and the joint T3 between the adjacent outer refractory face materials 4 do not coincide with each other. Are arranged.

A tape 5 and a putty 6 as a jointing agent having fire resistance are attached to the joint T3 between the outer refractory face materials 4 adjacent to each other, similarly to the joints T1 and T2 between the inner refractory face materials 2.
Specifically, for example, as shown in FIGS. 2 and 9, the tape 5 is attached along the joint T <b> 3 of the outer refractory face material 4 so as to completely cover the joint T <b> 3 and the staple 41. The putty 6 is applied so as to cover the entire outer surface.

  According to the fireproof structure 100 of the wall of the present invention described above, the metal foil 3 that facilitates heat transfer is provided between the inner fireproof face material 2 and the outer fireproof face material 4. Since the metal foil 3 is partially bonded to the outer refractory face material 4 by the adhesive 31, more heat is applied to the non-adhesion region 32 between the outer refractory face material 4 and the metal foil 3. There will be an air layer A that is difficult to convey. Accordingly, the air layer A between the outer refractory face material 4 and the metal foil 3 reduces the heat generated by the fire from being transmitted to the inside of the wall, and further the heat is transferred to the wall surface of the wall by the metal foil 3. It is thought that it can convey to the whole. That is, for example, even if a fire concentrates on some of the outer refractory face materials 4, fire damage to the wall can be dispersed by the metal foil 3 while being suppressed by the air layer A. Damage is further reduced, and higher fire resistance can be achieved without increasing the thickness of the fireproof face material.

  Further, since the outer refractory face material 4 is thinner and has a larger area than the inner refractory face material 2, the seam T3 between the outer refractory face materials 4 can be reduced, and the weight of the outer refractory face material 4 can be reduced. Can do. Further, even if the inner refractory face material 2 is made thicker by the thickness of the outer refractory face material 4, the inner refractory face material 2 has a smaller area than the outer refractory face material 4. Can be suppressed.

  Further, since the seams T1 and T2 between the inner refractory face materials 2 adjacent to each other and the seam T3 between the outer refractory face materials 4 adjacent to each other do not coincide with each other, the joint T3 between the outer refractory face materials 4 is the inner refractory face material. 2 will be located. Furthermore, since the joint T1 between the short sides of the inner refractory face material 2 is not continuous in the short side direction, the surface to which the inner refractory face material 2 is attached is compared with the case where the seam is continuous in the vertical direction. And it becomes flat as a whole. Therefore, a step is hardly generated in the vicinity of the joint T3 between the adjacent outer refractory face materials 4. Therefore, when a cloth is affixed on these outer refractory face materials 4, it is possible to eliminate problems such as scratches or protrusions on the cloth along the seam T3, or the cloth being cut.

  Further, since the long sides of the inner refractory face material 2 and the outer refractory face material 4 are orthogonal to each other, the joint T2 between the inner refractory face materials 2 and the joint T3 between the outer refractory face materials 4 are the same. It becomes orthogonal without facing the direction, and it is possible to prevent the strength reduction that becomes a problem when the seams overlap.

  Further, the total extension of the inner refractory face material 2 arranged in the long side direction through the joint T1 is an integral multiple of the reference dimension, and the total of the outer refractory face material 4 arranged in the short side direction through the joint T3. Since the extension is an integral multiple of the reference dimension, by setting the lateral length of the wall surface to which the inner refractory face material 2 and the outer refractory face material 4 are attached to an integral multiple of the reference dimension, the inner refractory face material 2 And the outer refractory face material 4 can be allocated in the lateral direction of the wall surface without any gaps.

  Also, the tape 5 and putty as a joint treating agent having fire resistance at at least one of the joints T1, T2 between the adjacent inner refractory face materials 2 and the joint T3 between the adjacent outer refractory face materials 4 Since 6 is attached, fire resistance can be further improved, and when it is attached to any joint of the inner refractory face material 2 and the outer refractory face material 4, particularly high fire resistance can be realized.

The present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist thereof.
For example, the shape, size, arrangement method, and the like of the inner refractory face material 2 and the outer refractory face material 4 are not limited to the present embodiment.

In the present embodiment, the tape 5 and the putty 6 as the joint treatment agent are attached to both the joints T1, T2 between the inner refractory face materials 2 and the joint T3 between the outer refractory face materials 4, but the tape 5 The putty 6 may be attached to at least one of the joints T1, T2 between the inner refractory face materials 2 and the joint T3 between the outer refractory face materials 4.
Further, the entire surface of the joints T1, T2, and T3 may not be covered with the tape 5 or the putty 6 as the joint treatment agent, and the joint T2 of the inner refractory face material 2 and the joint T3 of the outer refractory face material 4 are provided. It is good also as attaching only the location which cross | intersects, and the tape 5 and putty 6 as a joint-treatment agent can be provided by the method suitably possible besides these.

  In addition, although two types of joint treatment agents, tape 5 and putty 6, are attached, as long as they have fire resistance, only tape 5 may be used as the joint treatment agent, or only putty 6 is used. May be.

As long as the inner refractory surface material 2, the metal foil 3, and the outer refractory surface material 4 are attached to the wall surface of the wall panel 1 as a wall, the configuration of the wall panel 1 is not limited to this embodiment. .
Further, the inner refractory face material 2 is fixed to the frame body 11 via the plywood 12 and the plywood 12 by the wood screw 21, and the outer refractory face material 4 is fixed to the inner refractory face material 2 via the metal foil 3 by the staple 41. However, the method for fixing the inner refractory face material 2 and the outer refractory face material 4 is not limited to the present embodiment.

  In the present embodiment, the reference dimension is set to 910 mm, but the reference dimension is not limited as long as it is set to a reference dimension when attempting to arrange every part of the building in a multiple of a certain size. For example, 455 mm, 1000 mm, and 500 mm may be used.

It is a schematic block diagram of the fireproof structure of the wall concerning this invention. It is a figure which shows the AA cross section in FIG. It is a schematic block diagram of the front of a wall. It is a front view of the wall which attached the inner side fireproof surface material. It is a front view of the wall which attached the inner side refractory surface material which attached the joint treatment agent. It is a front view of the wall which attached metal foil and apply | coated the adhesive agent. It is a front view of the fireproof structure of the wall which attached the outer side fireproof surface material. It is a front view of the fireproof structure of the wall which attached the outer side fireproof surface material. It is a front view of the fireproof structure of the wall which attached the outer side fireproof surface material which attached the joint treatment agent.

Explanation of symbols

1 Wall panel (wall)
2 Inside refractory face material 3 Metal foil 4 Outside refractory face material 5 Tape (joint treatment agent)
6 Putty (joint treatment)
31 Adhesive 100 Fireproof structure of wall T1, T2, T3 seam

Claims (7)

In the fireproof structure of the wall that is made by attaching a fireproof face material to the wall of the wall,
The wall surface includes a plurality of inner refractory face materials, a metal foil attached to the outer surface of the inner refractory face material, and a plurality of outer refractory face materials attached to the outer surface of the metal foil,
The fireproof structure of a wall, wherein the metal foil is partially bonded to the outer fireproof face material with an adhesive. The fireproof structure of a wall according to claim 1,
The outer refractory face material is thinner and has a larger area than the inner refractory face material. In the fireproof structure of the wall of Claim 1 or 2,
The inner refractory face material and the outer refractory face material have a rectangular plate shape, and the seams between the inner refractory face materials adjacent to each other do not coincide with the seams between the outer refractory face materials adjacent to each other. The fireproof structure of the wall characterized by being arranged in this way. In the fireproof structure of the wall as described in any one of Claims 1-3,
Of the inner refractory face material and the outer refractory face material, one has a horizontally long rectangular plate shape, and the other has a vertically long rectangular plate shape,
A fireproof structure for a wall, wherein the inner fireproof face material and the outer fireproof face material are arranged so that their long sides are orthogonal to each other in plan view. In the fireproof structure of the wall of Claim 4,
The inner refractory face material has a horizontally long rectangular plate shape, and the outer refractory face material has a vertically long rectangular plate shape,
The wall refractory structure, wherein a length of a long side of the inner refractory face material and a length of a short side of the outer refractory face material are each an integral multiple of a reference dimension. In the fireproof structure of the wall of Claim 5,
The fireproof structure of a wall, wherein the inner refractory face material is arranged such that a seam between short sides is not continuous in the short side direction. In the fireproof structure of the wall as described in any one of Claims 1-6,
A joint treatment agent having fire resistance is attached to at least one of the joints between the inner refractory face materials adjacent to each other and the joint between the outer refractory face materials adjacent to each other. Fireproof structure of the wall.

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