JP7405548B2 - wall structure - Google Patents

Description

The present invention relates to wall structures.

BACKGROUND ART Conventionally, in order to construct an outer wall of a building with fire resistance, a wall structure in which beams and columns of the building are coated with a fire-resistant coating material such as sprayed rock wool has been known. For example, in the wall structure of Patent Document 1, a facing material is provided on the outdoor side of the beam, and the outer surface of the beam except for the surface facing the space between the beam and the facing material is covered with a fireproof coating material.

Further, in the wall structure of Patent Document 2, a facing material is provided on the outdoor side of the pillar, and the outer surface of the pillar except for the surface facing the space between the pillar and the facing material is covered with a fireproof coating material.

Japanese Patent Application Publication No. 2016-84664 JP2016-84665A

However, in the case of the wall structures described in Patent Document 1 and Patent Document 2, the space between the facing material and the beam or the space between the facing material and the column is narrow, so the hose for applying the sprayed rock wool is not necessary. There were problems in that there were areas where it was difficult to coat the sprayed rock wool, and there were areas where the fire resistance was poor.

The present invention was conceived under the above-mentioned conventional circumstances, and its purpose is to provide a wall structure with excellent fire resistance.

A wall structure as a first aspect of the present invention includes metal members that constitute a building,
a support member disposed on the outdoor side of the metal member;
a face material disposed on the outdoor side of the support member and in contact with the support member;
A wall structure comprising: an exterior material placed on the outdoor side of the surface material,
The metal member and the surface material are connected with a base material,
A first coating material having fire-resistant performance formed by spraying or coating and covering the outer surfaces of the metal member and the base material located outside the space formed by the metal member, the base material, and the surface material. and,
a second covering material having fire resistance and pre-formed into a specific shape and disposed so as to cover the outer surface of the metal member on a surface facing the space formed by the metal member, the base material, and the face material; It is something to be prepared for.

In the wall structure according to the first aspect of the present invention, the outer surfaces of the metal member and the base material located outside the space formed by the metal member, the base material, and the facing material are coated with a first layer formed by spraying or coating. Not only the covering material but also the outer surface of the metal member on the surface facing the space formed by the metal member, the base material, and the face material is covered with a second covering material previously formed into a specific shape. Therefore, the outer surface of the metal member that is difficult to cover with the first covering material can be covered with the second covering material, and the fire resistance performance can be further improved. Further, according to the present invention, it is possible to improve fire resistance without increasing the number of face materials or increasing the thickness of the exterior material or the face material. In other words, the present invention contributes to a reduction in the number of facing materials and the thickness of exterior materials and facing materials, and also contributes to excellent workability by reducing the number of processes and reducing the burden on workers. be.

In the wall structure according to the second aspect of the invention, the second covering material preferably contains rock wool. According to this wall structure, since the rock wool is pre-formed and has fire resistance, it is possible to apply rock wool to the outer surface of the metal member on the surface facing the space, which is difficult to apply with sprayed rock wool. Therefore, fire resistance performance can be improved.

In the wall structure as the third aspect of the present invention, it is preferable that the second covering material has a sheet that contacts the rock wool and faces the facing material. According to this wall structure, by providing the sheet, the rock wool is reinforced and protected more firmly.

The wall structure according to the fourth aspect of the present invention preferably includes a fixture for fixing the second covering material, and the fixture is preferably fixed to the metal member while penetrating the second covering material. According to this wall structure, the fixing device penetrates the second sheathing material and is fixed to metal members such as beams and columns, so the fixation between the second sheathing material and the metal members is strong, and It is possible to prevent the second coating material from peeling off due to

In the wall structure according to the fifth aspect of the invention, the first coating material preferably contains sprayed rock wool. According to this wall structure, since sprayed rock wool is used, fire resistance can be ensured at low cost.

In the wall structure according to the sixth aspect of the present invention, the facing material is preferably a gypsum board. According to this wall structure, since the gypsum board has fire resistance, the fire resistance is improved.

In the wall structure as a seventh aspect of the present invention, the first surface material is arranged on the outdoor side of the support member and comes into contact with the support member, and the first surface material is arranged on the outdoor side of the first surface material and a second surface material in contact with the first surface material, and the joint portion between the first surface materials in the vertical direction and the joint portion between the second surface materials in the vertical direction are respectively from the direction from the outdoor side to the indoor side. Look, it's preferable that they don't overlap. According to this wall structure, by increasing the number of facing materials, the thickness of the facing material increases, and fire resistance can be improved. Further, the joints between the first side materials and the joints between the second side materials do not overlap when viewed from the direction from the outdoor side to the indoor side, that is, in the thickness direction, the joints between the first side materials and the second side materials do not overlap. Since the joints between the side panels and the joints between the second panels do not overlap, even if fire passes through the joints between the first panels, the second panel will prevent the fire from passing through. can be prevented and fire resistance can be improved.

According to the present invention, a wall structure with excellent fire resistance can be provided.

1 is a perspective view schematically showing a wall structure in Embodiment 1 of the present invention. FIG. FIG. 2 is a top view of a wall structure according to Embodiment 1 of the present invention. FIG. 2 is an enlarged cross-sectional view of the wall structure according to the first embodiment of the present invention, which is closer to the indoor side than the support member. FIG. 1 is a cross-sectional view schematically showing the entire wall structure of Embodiment 1 of the present invention. 1 is a perspective view of the entire wall structure according to Embodiment 1 of the present invention. FIG. It is a perspective view which shows typically the wall structure of Embodiment 2 of this invention. FIG. 7 is a top view of a wall structure according to a second embodiment of the present invention. In the wall structure of Embodiment 2 of this invention, it is sectional drawing of the principal part on the indoor side from a support member. FIG. 7 is a cross-sectional view of a main part on the indoor side of a support member in a wall structure according to a third embodiment of the present invention. In the wall structure of Embodiment 4 of this invention, it is sectional drawing of the principal part on the indoor side from a support member. In the wall structure of Embodiment 5 of this invention, it is sectional drawing of the principal part on the indoor side from a support member. It is a perspective view which shows typically the whole wall structure of Embodiment 6 of this invention. It is a top view of the whole wall structure of Embodiment 6 of this invention. It is a perspective view which shows typically the whole wall structure of Embodiment 7 of this invention. It is a top view of the whole wall structure of Embodiment 7 of this invention.

Hereinafter, embodiments embodying the wall structure of the present invention will be described with reference to the drawings, but the present invention is not limited to the following embodiments. In other words, it is understood that modifications and improvements made to the following embodiments based on the common knowledge of those skilled in the art without departing from the spirit of the present invention also fall within the scope of the present invention. Should. Note that in FIG. 1, the vertically upward direction is indicated as top, and the vertically downward direction is indicated as downward. Further, in the direction from outdoors to indoors in FIG. 1, the horizontal left direction is indicated as left, and the horizontal right direction is indicated as right.

(Embodiment 1)
As shown in FIG. 1, the wall structure of Embodiment 1 is an example of a specific aspect of the present invention. This wall structure consists of metal members (not shown) constituting the building, a plurality of steel frames 1 that are supporting members, and a face material that is a first surface material that is placed on the outdoor side of the steel frame 1 and comes into contact with the steel frame 1. (underlayment) 3, a facing material (top covering) 5, which is a second facing material that is placed on the outdoor side of the facing material (underlayment) 3 and comes into contact with the facing material (underlayment) 3, and a facing material (top covering) 5. 5, and an exterior material 11 disposed on the outdoor side.

In this embodiment, the metal members constituting the building are metal beams such as steel beams and steel pipe columns. Examples of the steel frame 1 that is a supporting member include a steel frame with a C-shaped cross section as in this embodiment, a rectangular steel frame, and the like. Examples of the steel frame include lightweight steel frames. Note that in this embodiment, the steel frame is not limited to a lightweight steel frame. Further, the support member may be made of wood or resin.

In this embodiment, the facing material (underlayment) 3 and the facing material (top covering) 5 are rectangular when viewed from the front. The facing material (underlayment) 3 and the facing material (top covering) 5 are made of a fire-resistant material, and for example, gypsum board can be used. As this gypsum board, reinforced gypsum board specified in JIS A 6901 may be used. Furthermore, the core plaster of the reinforced gypsum board may be waterproofed with a dehydrating material or the like. Note that the facing material (underlayment) 3 and the facing material (top covering) 5 are not limited to plasterboard, but may be made of a fire-resistant material, such as a calcium silicate board or a cement board. Good too. Note that the number of face materials in the thickness direction may be increased separately.

In this embodiment, the exterior material 11 is attached to the outermost side outdoors. The exterior material 11 has a rectangular shape when viewed from the front. As such an exterior material 11, an exterior wall board can be used. Exterior wall boards are board materials that themselves have high strength and rigidity and constitute the outer walls of buildings. Note that the exterior material 11 is not limited to an exterior wall board, and may be, for example, a decorative board having a highly designed decorative surface on its surface. Decorative boards are often attached to strong frameworks that make up exterior walls, and generally have lower strength and rigidity than exterior wall boards. In this embodiment, the exterior material 11 is made of a ceramic material containing cement. Note that the material and shape of the exterior material 11 are not limited to those described above. For example, the material of the exterior material 11 can be appropriately selected from metal materials, wood materials, resin materials, and the like.

As shown in FIG. 1, the steel frame 1 is installed on the surface of a foundation (not shown) as a vertical frame that is vertically long, that is, vertically long. The steel frames 1 are arranged side by side in the left-right direction at predetermined intervals. The intervals at which the steel frames 1 are installed are appropriately set, and may be equal intervals, for example. Further, the support members may be installed as horizontal furrings arranged in parallel in the vertical direction.

In this embodiment, as shown in FIG. 1, a plurality of face materials (underlayment) 3 are arranged adjacent to each other vertically and horizontally along a plurality of lined steel frames 1.

In this embodiment, as shown in FIG. 1, a plurality of facing materials (top coverings) 5 are arranged adjacent to each other vertically and horizontally on the outdoor side of a plurality of facing materials (underlayings) 3 arranged in a row. That is, like the facing material (underlayment) 3, the facing material (top covering) 5 extends along the steel frame 1 arranged in plurality. In this embodiment, the facing material (underlay) 3 and the facing material (top covering) 5 are arranged so that the vertical side is the short side and the horizontal side is the long side, but the vertical side is the long side and the horizontal side is the long side. The short side is also fine. In addition, a portion A where horizontal sides 5U and 5B of adjacent facing panels (top covering) 5 butt against each other in the vertical direction, and a portion where horizontal sides (not shown) of adjacent facing panels (underlaying) 3 butt against each other (not shown) so that they do not overlap in the thickness direction, in the event of a fire, the facing material (covering) 5 shrinks and there is a gap in the part where the horizontal sides of the facing material (covering) 5 butt each other. Even in the case where a lining is formed, the facing material (underlayment) 3 is present on the indoor side of the part A where the horizontal sides 5U and lateral sides 5B of the facing material (top covering) 5 meet, so the fire resistance is will improve. Note that, regardless of the horizontal sides, the vertical sides 5L and the portion B where the vertical sides 5L butt each other do not need to overlap in the thickness direction. This will improve fire resistance as well as the sides. Note that although joint tape 4 is applied to the joint where the horizontal sides or vertical sides of the face materials are butted against each other and joined, it is not essential. Fire resistance is improved by pasting the joint tape 4. The joint tape 4 may be applied to the upper and lower joints or to the left and right joints. Further, the spacer 8 is used to adjust unevenness when the exterior material 11 is fastened to the furrow 6, and is not essential.

As shown in FIG. 2, the facing material (underlayment) 3 is fixed to the steel frame 1 by the facing material (underlayment) fasteners 17, and the facing material (top covering) 5 is fixed to the steel frame by the facing material (overlaying) fasteners 16. It is fixed at 1. The exterior material 11 is fixed to the steel frame 1 using exterior material fasteners 9 and fastener fasteners 15. A rim 6 is arranged between the exterior material 11 and the face material (covering) 5. The furring 6 is fixed to the steel frame 1 by a furring fastener 18. Moreover, the exterior material reinforcing tool 10 is for reinforcing the fixation of the exterior material 11, and is not essential. Examples of the facing material (underlay) fastener 17, the facing material (top covering) fastener 16, the fastening fastener 15, the furring fastener 18, and the exterior material reinforcing tool 10 include screws, nails, screws, etc. It will be done. In addition, in this embodiment, the face material (top covering) 5, the facing material (top covering) fastener 16, the heat insulating material 2, the furring 6, and the furring fastener 18 are not essential.

As shown in FIG. 2, in this embodiment, a vertically long joiner 21 is provided on the outdoor side surface of the facing material (covering) 5. The joiner 21 is in contact with the furrow 6 and is located on the outdoor side of the furrow 6. As the joiner 21, for example, a hat joiner having a hat-shaped cross section can be used. Note that the joiner 21 is omitted in FIG. 1. Further, the exterior material fastener 9 is in contact with the joiner 21 and is disposed on the outdoor side of the joiner 21. In addition, in FIG. 2, two exterior material fasteners 9 are provided with position B in between. Moreover, regarding the fastening of the exterior material 11, the exterior material 11 may be fastened only with the exterior material reinforcing tool 10 without using the exterior material fastener 9.

Further, as shown in FIGS. 1 and 2, a moisture-permeable waterproof sheet 7 may be disposed on the outdoor surface of the facing material (covering) 5. The moisture-permeable waterproof sheet 7 has the property of preventing moisture from entering and transmitting moisture (water vapor). The moisture-permeable waterproof sheet 7 releases moisture to the surface side, and suppresses the occurrence of dew condensation within the wall structure. Furthermore, even if moisture such as rainwater infiltrates from the exterior material 11, it becomes easier to prevent moisture from intruding into the facing material (covering) 5 side.

In this embodiment, a heat insulating material 2 is disposed on the indoor side of the facing material (underlayment) 3. Examples of the heat insulating material 2 include rock wool, glass wool, and the like.

As shown in FIGS. 1 and 2, in this embodiment, a plurality of exterior materials 11 are disposed adjacent to each other vertically and horizontally on the outdoor side of a plurality of facing materials (top coverings) 5 arranged in a row. That is, the exterior material 11, like the facing material (underlayment) 3 and the facing material (top covering) 5, extends along the steel frame 1 arranged in plurality. In this embodiment, the exterior material 11 is arranged so that the vertical side is the short side and the horizontal side is the long side, but the vertical side may be the long side and the horizontal side may be the short side. Further, the exterior material 11, the facing material (underlayment) 3, and the facing material (top covering) 5 may have a vertical side and a horizontal side of the same size, that is, may have a square shape.

As shown in FIGS. 1 and 2, the exterior material 11 is arranged via exterior material fasteners 9 and joiners 21 arranged on the outdoor side surface of the facing material (covering) 5. The exterior material 11 is fixed to the steel frame 1 by exterior material fasteners 9 via the facing material (underlayment) 3, the facing material (top covering) 5, and the rim 6. Furthermore, the vertical sides of the exterior materials 11 that are adjacent to each other in the left and right direction are butted against each other via a joiner 21 . A portion B where the vertical sides of the exterior material 11 are butted together is filled with a sealing material 20 to close the gap. As the sealant 20, for example, silicone resin or the like can be used.

As shown in FIGS. 4 and 5, the metal beam 24, which is a metal member, and the face material (underlayment) 3 are connected by a metal lath 29, which is a base material. The base material may be a mesh member other than metal lath, an iron plate, or the like. The outer surfaces of the metal beam 24 and metal lath 29 located outside the space formed by the metal beam 24, metal lath 29, and facing material (underlayment) 3 are coated with sprayed rock wool, which is the first coating material 23. . Alternatively, the metal lath 29 may be connected between the facing material (underlayment) 3 and the metal beam 24 after first connecting the facing material (underlayment) 3 and the metal beam 24 to the steel beam 27. In this case, the metal lath 29 can be stably fixed due to the presence of the force bones 27. Note that FIG. 5 shows an example of two force bones 27, and FIGS. 12 and 14, which will be described later, show an example of two on the right side and one on the left side, but the number is not limited to this. . Although the force bone anchoring material 28 connects the force bone 27 and the metal beam 24, it is not essential and may connect the force bone 27 and the metal beam 24. In addition, in FIG. 5, the force bone anchoring material 28 is omitted. The metal lath 29 is discontinuous in the horizontal direction in FIG. 5 and in the vertical direction in FIGS. 12 and 14, but in this embodiment, the metal lath extends in the horizontal direction in FIG. 5 and in the vertical direction in FIGS. 12 and 14.

In this embodiment, the first covering material is formed by spraying or coating. Examples of the first covering material include sprayed rock wool, which is a wet material, fireproof paint, mortar, and the like.

As shown in FIG. 4, in this embodiment, the outer surface of the metal beam 24 facing the space formed by the metal beam 24, the metal lath 29, and the facing material (underlayment) 3 is covered with the second covering material 25. Covered with inorganic fiber felt (an example of rock wool). Note that the second covering material 25 may be made of felt other than inorganic fibers. Examples of the second covering material 25 include heat-resistant rock wool formed into a felt shape, which is a dry member, ceramic fiber, alkaline earth silicate wool, glass wool, calcium silicate board, gypsum board, and the like. The second covering material 25 is preformed into a specific shape by rolling, pre-cutting, etc., and can be installed simply by wrapping it around the metal beam 24 and fixing it with pins or the like, making it easy to install. Moreover, by having the sheet 36 facing the facing material (underlayment) 3, the inorganic fibers such as heat-resistant rock wool and ceramic fibers are reinforced and can be more strongly protected. Examples of the sheet 36 include flame-retardant nonwoven fabric.

As shown in FIGS. 3 and 4, the inorganic fiber felt that is the second covering material 25 is penetrated by the second covering material fixing device 26, which is one of the fixing devices, and is attached to the metal beam 24 at two places. is fixed. The second covering material fixture 26 is a pin, and is fixed to the metal beam 24 by welding. The inorganic fiber felt that is the second covering material 25 is in contact with a part of the metal beam 24 . In this embodiment, it is fixed by welding, but the fixing method is not limited to welding. Further, in this embodiment, the floor plate 22 is provided on the metal beam 24, and the floor plate 22 is supported by the metal beam 24. In this embodiment, the gap between the floorboard 22 and the facing material (underlayment) 3 is filled with a filling material 35 . Further, in FIG. 4, an intermediate drainer 34 and a watertight material 33 such as a sealant are arranged between the two upper and lower exterior members (joint portion), but these are not essential. That is, the upper and lower joint portions may be joined by joining, which will be described later. Furthermore, as shown in FIG. 4, the metal beam 24 and the steel frame 1 are connected and fixed by a metal support 30. In FIGS. 4 and 5, it appears that the second covering material 25 crosses the receiving part 30, but this is to make it easier to see the arrangement of the second covering material 25, and in reality, the receiving part 30 is closer to the second covering material 25. It is also located on the right side. In other words, the metal support 30 does not cross the second covering material 25 as shown in FIGS. 4 and 5.

(Embodiment 2)
As shown in FIGS. 6 and 7, in the wall structure of the second embodiment, adjacent exterior materials 11 in the left and right direction of the wall structure of the first embodiment are butted against each other, and a sealing material (joint material) is used. Instead of the jointed parts, the mating parts each have male and female notches and are joined by fitting adjacent exterior materials 11 together without using a sealant (joint material). have. One exterior material fastener 9 is disposed across the left and right exterior materials 11 at the portion where the exterior materials 11 fit together. The other configurations of the wall structure of the second embodiment are the same as those of the first embodiment. Therefore, the same components as those in Embodiment 1 are given the same reference numerals and the description thereof will be omitted.

As shown in FIG. 8, in the wall structure of the second embodiment, the inorganic fiber felt that is the second covering material 25 is bent into a dogleg shape, and the metal beams 24 and 3 are connected by the second covering material fixing device 26. Fixed in place. The inorganic fiber felt is in contact with the stiffener 27, the metal lath 29, and the floorboard 22. The sheet 36 may be provided so as to cover both end surfaces of the curved second covering material 25. That is, the sheet 36 may extend from the lower end of the sheet 36 to the bracing bones 27 and the metal lath 29, and from the upper end of the sheet 36 until it comes into contact with the floorboard 22. In addition, although the metal receiving object 30 is not provided in FIG. 8, it may be provided separately.

(Embodiment 3)
As shown in FIG. 9, in the wall structure of the third embodiment, instead of fixing the inorganic fiber felt, which is the second covering material 25, to the metal beam 24 in the wall structure of the second embodiment, the second covering material The inorganic fiber felt 25 is curved into a dogleg shape and is fixed to the metal beam 24 at two places by the second covering material fixing device 26, and is also fixed to the floorboard 22 by the second covering material fixing device 37. Fixed in one place. The inorganic fiber felt is in contact with the stiffener 27, the metal lath 29, and the floorboard 22. The sheet 36 may be provided so as to cover both end surfaces of the curved second covering material 25. That is, the sheet 36 may extend from the lower end of the sheet 36 to the bracing bones 27 and the metal lath 29, and from the upper end of the sheet 36 until it comes into contact with the floorboard 22. In addition, although the metal receiving object 30 is not provided in FIG. 9, it may be provided separately.

(Embodiment 4)
As shown in FIG. 10, in the wall structure of the fourth embodiment, instead of fixing the inorganic fiber felt to the metal beam 24 according to the wall structure of the second embodiment, the inorganic fiber felt as the second covering material 25 is , is fixed to the metal beam 24 at two places by a second covering material fixing device 26 so that the floor plate 22 and the metal lath 29 do not come into contact with each other. The sheet 36 may be provided so as to cover both end surfaces of the curved second covering material 25. That is, the sheet 36 may extend from the lower end of the sheet 36 to the bracing bones 27 and the metal lath 29, and from the upper end of the sheet 36 until it comes into contact with the floorboard 22. In addition, although the metal receiving object 30 is not provided in FIG. 10, it may be provided separately.

(Embodiment 5)
As shown in FIG. 11, in the wall structure of the fifth embodiment, instead of fixing the inorganic fiber felt to the metal beam 24 according to the wall structure of the second embodiment, the inorganic fiber felt as the second covering material 25 is , the floor plate 22, the metal beam 24, and the metal lath 29 are fixed to the metal beam 24 at two places by the second covering material fixture 26 without any gaps. Further, the inorganic fiber felt and the sheet 36 are in contact with the reinforcement bones 27, the metal lath 29, and the floorboard 22. In addition, although the metal receiving object 30 is not provided in FIG. 11, it may be provided separately.

(Embodiment 6)
As shown in FIGS. 12 and 13, in the wall structure of the sixth embodiment, a steel pipe column 624 is used instead of the steel beam 24, which is a metal member in the wall structure of the first embodiment. Further, the embodiment using the steel beam 24 has one metal lath 29, whereas the present embodiment using the steel pipe column 624 has two metal laths 29, each facing the other. There is. The outer surfaces of the steel pipe column 624 and the metal lath 29 located outside the space formed by the steel pipe column 624, the two metal laths 29, and the facing material (underlayment) 3 are covered with sprayed rock wool, which is the first covering material 23. ing. Further, the outer surface of the steel pipe column 624 on the surface facing the space formed by the steel pipe column 624, the metal lath 29, and the facing material (underlayment) 3 is covered with inorganic fiber felt, which is the second covering material 25. They are in contact with two opposing metal laths 29, respectively. Furthermore, as shown in FIG. 12, the steel pipe column 624 and the steel frame 1 are connected and fixed by the metal support 30. The other configurations of the wall structure of the sixth embodiment are the same as those of the first embodiment. Therefore, the same components as those in Embodiment 1 are given the same reference numerals and the description thereof will be omitted.

(Embodiment 7)
As shown in FIGS. 14 and 15, in the wall structure of the seventh embodiment, a steel pipe column 724 with an H-shaped cross section is used instead of the steel beam 24, which is a metal member related to the wall structure of the first embodiment. ing. Therefore, the same components as those in Embodiment 1 are given the same reference numerals and the description thereof will be omitted. Embodiment 7 differs from Embodiment 6 only in the shape of the steel pipe column.

As explained above, according to the present invention, a wall structure with excellent fire resistance can be provided.

1: Steel frame, 2: Insulation material, 3: Face material (underlayment), 4: Joint tape, 5: Face material (overlay), 6: Rim, 7: Moisture-permeable waterproof sheet, 8: Spacer, 9: Exterior Material fastener, 10: Fixing tool, 11: Exterior material, 16: Face material (top covering) fastener, 17: Face material (underlay) fastener, 18: Furring fastener, 20: Sealing material, 21: Joiner, 22: Floorboard, 23: First covering material, 24: Metal beam, 25: Second covering material, 26, 36: Second covering material fixing device, 27: Strength bone,
28: Strength bone fastening material, 29: Metal lath, 30: Bracket, 33: Watertight material, 34: Intermediate drainer, 35: Closing filler, 624, 724: Steel pipe column

Claims (7)

Metal members that make up the building,
a support member disposed on the outdoor side of the metal member;
a face material disposed on the outdoor side of the support member and in contact with the support member;
A wall structure comprising: an exterior material placed on the outdoor side of the surface material,
The metal member and the surface material are connected with a base material,
A first coating material having fire-resistant performance formed by spraying or coating and covering the outer surfaces of the metal member and the base material located outside the space formed by the metal member, the base material, and the surface material. and,
a second covering material having fire resistance and pre-formed into a specific shape and disposed so as to cover the outer surface of the metal member on a surface facing the space formed by the metal member, the base material, and the face material; Equipped with wall structure.
The wall structure of claim 1, wherein the second covering material contains rock wool. The wall structure according to claim 2, wherein the second covering material has a sheet that contacts the rock wool and faces the face material. The wall according to any one of claims 1 to 3, further comprising a fixture for fixing the second covering material, the fixture being fixed to the metal member while penetrating the second covering material. structure. The wall structure according to any one of claims 1 to 4, wherein the first coating material contains sprayed rock wool. The wall structure according to any one of claims 1 to 5, wherein the facing material is a gypsum board. a first surface material disposed on the outdoor side of the support member and in contact with the support member;
a second surface material disposed on the outdoor side of the first surface material and in contact with the first surface material; a joint between the first surface materials in the vertical direction; and a second surface material in the vertical direction. The wall structure according to any one of claims 1 to 6, wherein the joints between the facing materials do not overlap when viewed from the direction from the outdoor side to the indoor side.

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