JP7304751B2 - Fireproof cladding structure for walls composed of thermal insulation panels - Google Patents

Description

The present invention relates to fire-resistant cladding constructions for walls composed of insulating panels.

In buildings such as refrigerated warehouses and containers, sandwich panels, in which decorative steel sheets are sandwiched between organic heat insulating materials such as urethane-based heat insulating materials, are widely used as heat insulating panels for exterior walls and wall materials that partition the interior of buildings. It is
Conventionally, a wall is provided by arranging a plurality of heat insulating panels using such an organic heat insulating material and joining them via fitting portions for fitting the ends of the heat insulating panels.
However, in buildings using such heat insulating panels, fire accidents frequently occur in countries around the world, including Europe, Asia, the Middle East, and the like.
Therefore, in each country, various evaluation methods have been created for heat insulating panels in which organic heat insulating material is sandwiched between decorative steel plates, and the current situation is that legal revisions are being made.
In Japan as well, fires continue to occur even with heat-insulating panels that have been evaluated as non-combustible as building materials in the conventional building standards law heat-generating test. A new evaluation method was created to perform the fire test.

JP-A-61-57736 Japanese Utility Model Publication No. 61-15122

The inventors of the present invention are studying and earnestly studying the causes of fire accidents in buildings using heat-insulating panels in which an organic heat-insulating material is sandwiched between decorative steel plates. As a result, since the decorative steel plate has a thickness of about 0.4 to 1 mm, the heat in the event of a fire is transferred to the interior through the decorative steel plate, and the heat during the fire causes the decorative steel plate to deform greatly, causing the insulation panels to break apart. It was found that this was caused by the formation of gaps in the joints.
Then, it was found that if the heat is transmitted from the decorative steel plate to the inside of the heat insulating panel and the organic heat insulating material is burned and the fire spreads, the heat insulating panel will fall down.
In addition, if a gap occurs at the joint between the heat insulating panels, heat and flame are directly transmitted to the organic heat insulating material from the gap, and the organic heat insulating material burns and spreads, or oxygen is supplied from the gap, It became clear that the fire spread and spread.

The present invention has been devised in view of the above circumstances, and an object of the present invention is to suppress the transfer of heat from the decorative steel plate to the inside of the heat insulating panel and to prevent the occurrence of gaps due to thermal deformation at the joint. To provide a fireproof coating structure for a wall composed of heat insulating panels which is preventable and advantageous in preventing fire accidents in a building.

In order to achieve the above-mentioned object, the present invention comprises a heat insulating material body containing an organic heat insulating material and a pair of decorative steel plates covering both sides of the heat insulating material body, and has a thickness and a width and height dimension larger than the thickness. A fireproof covering structure for a wall in which a plurality of heat insulating panels having a thickness are arranged in the width direction, and one surface of the heat insulating panel in the thickness direction is provided so as to straddle the joint portion of the adjacent heat insulating panel in the width direction. a noncombustible board made of an inorganic material having a thickness, a width and a height larger than the thickness, and the noncombustible board A covering steel plate having a substantially hat shape in cross section, comprising a covering plate portion covering one side surface in the thickness direction and both end surfaces in the width direction, and a pair of flanges extending in a direction away from both ends in the width direction of the incombustible board. The flanges of the adjacent coating steel plates are superimposed on the decorative steel plate, and a fixing member that inserts the superimposed flanges and the decorative steel plate and joins the heat insulating material body to the heat insulating panel fireproof An inorganic fiber-based incombustible material is provided on the inner side of the decorative steel plate on which the cover is attached to the heat insulating panel and the flange is superimposed.
Further, the present invention is characterized in that the inorganic fiber incombustible material is provided up to one end in the width direction of the heat insulating material main body.
Further, in the present invention, the flanges of the adjacent coating steel plates are overlapped at a position apart from the joint portion, and the tip of the fixing member is positioned inside the inorganic fiber noncombustible material. characterized by
Further, according to the present invention, the joint portion includes a fitting portion, and the fitting portion is a fitting recess that is provided on the end face in the width direction of the adjacent heat insulating panel and recesses toward the center in the width direction. and a fitting board made of an inorganic material and fitted over the fitting recesses of the adjacent heat insulating panels.
Further, in the present invention, the inorganic fiber incombustible material and the fitting board have an overlapping portion extending in the width direction of the heat insulating panel while being in contact with each other in the thickness direction of the heat insulating panel. characterized by
Further, according to the present invention, the noncombustible board includes a pair of side surfaces located at both ends in the thickness direction of the incombustible board and a pair of end surfaces located at both ends in the width direction of the incombustible board, The covering plate portion includes a body plate portion joined to one of the side surfaces of the incombustible board, and a covering plate portion connected to both ends in the width direction of the body plate portion and joined to the pair of end faces, and the flanges protrude from the ends thereof. a pair of end face plate portions that are attached to each other, and the ends of the adjacent covering steel plates at the locations where the flanges of the covering steel plates that are adjacent in the width direction of the heat insulating panel are attached to the heat insulating panel by the fixing member A recess that is recessed in the thickness direction of the heat insulating panel is formed by the face plate portion and the flange, the recess is filled with a sealing material, and the head of the fixing member is embedded in the sealing material. .
In addition, the present invention provides a heat insulating panel fireproof coating for covering a wall, which is constructed by arranging a plurality of heat insulating panels each having a heat insulating material body containing an organic heat insulating material and a pair of decorative steel plates covering both sides of the heat insulating material body. A noncombustible board made of an inorganic material and having a thickness and a width and height larger than the thickness; a pair of end plate portions connected to both ends of the main body plate portion and covering end faces of both ends in the width direction of the incombustible board; and the other side in the thickness direction bent from the pair of end plate portions and a pair of flanges extending in a direction away from the end face on the same plane as the side face of the cover steel plate, the covering steel plate having a substantially hat-shaped cross section.

According to the present invention, a wall in which a plurality of heat insulating panels are arranged and joined in the width direction is provided with a heat insulating panel fireproof covering composed of a noncombustible board and a steel plate for covering the heat insulating panel across the joint portion of the heat insulating panel in the width direction. Since they are arranged in the width direction and cover one surface of the heat insulating panel, it is possible to suppress the transfer of heat from the decorative steel plate to the general part of the heat insulating panel and the inside of the joint, which is advantageous in preventing fire accidents in the building.
In addition, the flanges of the covering steel plates that are adjacent in the width direction of the heat insulation panel are superimposed on the decorative steel plate, and the heat insulating panel fireproof covering is insulated by the fixing member that inserts the superimposed flanges and decorative steel plates and joins them to the main body of the heat insulating material. Since it is attached to the panel, it is possible to prevent the occurrence of gaps due to thermal deformation at the joints of the heat insulating panels, which is advantageous in preventing fire accidents in the building.
In addition, since the inorganic fiber noncombustible material is provided inside the decorative steel plate on which the flange is superimposed, it suppresses the direct transfer of heat from the fixed member inserted through the flange to the organic heat insulating material, preventing a building fire. This is advantageous in preventing accidents.
In addition, according to the present invention, since the inorganic fiber noncombustible material is provided up to one end in the width direction of the heat insulating material main body, it prevents the formation of a gap due to thermal deformation at the joint between the heat insulating panels. advantage over
Further, according to the present invention, since the flanges of the adjacent covering steel plates are overlapped at a position away from the joint, and the tip of the fixing member is positioned inside the inorganic fiber noncombustible material, the fixing member can be inserted. This is advantageous in suppressing the transmission of heat through the fixing member to the non-fire side when a fire occurs on the fire side.
In addition, according to the present invention, the fitting portion includes a fitting recess that is provided on the end surface in the width direction of the heat insulating panel and is recessed toward the center in the width direction, and a fitting portion that is fitted over the fitting recess of the adjacent heat insulating panel. Since it is composed of a joint board, moisture in the joint board evaporates in the event of a fire, which is advantageous in retarding the temperature rise of the heat insulating panel, and is advantageous in preventing fire accidents in the building.
Since the inorganic fiber incombustible material and the board for fitting have overlapping portions that extend in the width direction of the heat insulating panel while being in contact with each other in the thickness direction of the heat insulating panel, a gap is generated at the joint due to thermal deformation. This is advantageous in preventing fires and fire accidents in buildings.
In addition, according to the present invention, at the location where the flange of the covering steel plate adjacent in the width direction of the heat insulating panel is attached to the heat insulating panel by the fixing member, the heat insulating panel is formed by the end surface plate portion of the adjacent covering steel plate and the flange. A recess that is recessed in the thickness direction is formed, the recess is filled with a sealing material, and the head of the fixing member is embedded in the sealing material, thereby suppressing heat transfer to the fixing member without impairing the appearance. advantage over
In addition, the use of the insulating panel fireproof coating of the present invention is advantageous in easily and reliably constructing the wall fireproof coating structure of the present invention.

FIG. 2 is a cross-sectional plan view of a main part showing a fireproof coating structure of a wall made up of the heat insulating panel of the first embodiment; 1 is a cross-sectional view of a heat insulating panel fireproof coating according to a first embodiment; FIG. It is explanatory drawing in the case of joining the heat insulation panel fireproof covering to the heat insulation panel of 1st Embodiment. FIG. 10 is a cross-sectional plan view of a main part showing a fireproof covering structure of a wall made up of heat insulating panels according to a second embodiment;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
A fireproof coating structure 10A for a wall composed of heat insulating panels according to the first embodiment will be described with reference to FIGS. 1 to 3. FIG.
As shown in FIG. 1, in the fireproof covering structure 10A of the present embodiment, a wall formed by arranging and joining heat insulating panels 12 is a heat insulating panel fireproof covering 30 (hereinafter simply referred to as "covering 30"). It is a structure covered with
In this embodiment, in the fireproof covering structure 10A, the side on which the covering 30 is located among both surfaces of the heat insulating panel 12 is the indoor side or the indoor side, and the opposite side is the outdoor side or the outdoor side. Alternatively, it is assumed that a fire occurs indoors.

First, the heat insulation panel 12 used for the wall of the first embodiment will be described with reference to FIG.
The heat insulating panel 12 includes a heat insulating material body 14 and a pair of decorative steel plates 16 covering both sides of the heat insulating material body 14 in the thickness direction, and has a thickness T and a width W larger than the thickness T. and height (in the direction perpendicular to the plane of FIG. 1).
The heat insulating panel 12 preferably has a thickness T of 30 mm to 300 mm, a width W of 600 mm to 1200 mm, and a height of 3 m to 10 m. In this embodiment, the thickness T is 50 mm.
Both ends of the heat insulating panel 12 in the width W direction are joint portions, and the portions of the heat insulating panel 12 excluding the joint portions are general portions.
A plurality of heat insulating panels 12 are arranged in the width W direction, and joint portions 12A of adjacent (adjacent) heat insulating panels 12 are connected and joined to form a wall.

The heat insulating material main body 14 includes an organic heat insulating material 14A and an inorganic fiber noncombustible material 14B that is superior in noncombustibility to the organic heat insulating material.
Various conventionally known heat insulating materials such as urethane heat insulating materials can be used as the organic heat insulating material.
As the inorganic fiber incombustible material, various conventionally known inorganic fibers, such as rock wool, which are superior in noncombustibility to organic heat insulating materials, can be used.
The heat insulating material body 14 has a thickness in the same direction as the thickness T direction of the heat insulating panel 12, a width in the same direction as the width W direction of the heat insulating panel 12, and a height in the same direction as the height direction of the heat insulating panel 12. The heat insulating material main body 14 has a rectangular plate shape, and the width and height of the heat insulating material main body 14 are larger than the thickness of the heat insulating material main body 14 .

A fitting concave portion 1202A is provided at one end of both ends in the width direction of the heat insulating material body 14, and a fitting convex portion 1202B is provided at the other end. The fitting concave portion 1202A and the fitting convex portion 1202B are provided over the entire length of the heat insulating material main body 14 in the height direction.
Specifically, the fitting recess 1202A is provided at the center of the heat insulating material body 14 at one end in the thickness direction, and is recessed toward the center of the heat insulating material body 14 in the width direction. It is provided open to the outside of the direction.
On the other hand, the fitting projection 1202B is provided at the center of the heat insulating material main body 14 at the other end in the thickness direction and protrudes outward in the width direction of the heat insulating material main body 14 .

The inorganic fiber incombustible material 14B is provided on one surface of the heat insulating material main body 14 in the thickness direction and has a predetermined length in the width direction from one end of the heat insulating material main body 14 . The inorganic fiber noncombustible material 14B is provided over the entire length of the heat insulating material main body 14 in the height direction.
From the viewpoint of preventing the formation of gaps due to thermal deformation in the joint 12A of the heat insulating panel 12 in the event of a fire, the thickness of the heat insulating material body 14 of the inorganic fiber noncombustible material 14B is preferably 20 mm to 80 mm, and the inorganic fiber noncombustible. The width of the heat insulating material body 14 of the material 14B is preferably 3 mm to 1200 mm.

The pair of decorative steel plates 16 are obtained by surface-treating steel plates obtained by rolling a steel material into a plate shape, and cover both side surfaces in the thickness direction and end faces in the width direction of the heat insulating material main body 14 .
Various conventionally known materials such as galvanium steel plate can be used for the decorative steel plate 16, and the thickness thereof is about 0.2 mm to 1 mm. In this embodiment, a 0.4 mm steel plate is used.
The decorative steel plate 16 includes a body plate portion 1602 and end plate portions 1604 connected to the body plate portion 1602 .
The body plate portion 1602 covers the side surfaces of both ends of the heat insulating material body 14 in the thickness direction.
The end plate portions 1604 are connected to both ends in the width direction of the body plate portion 1602 via bent portions, and partially cover both end faces in the width direction of the heat insulating material body 14 .

More specifically, of the widthwise ends of the body plate portion 1602, the end face plate portion 1604 positioned at one end on the side where the fitting recess 1202A is provided is composed of plate members 1604A to 1604C. .
The plate members 1604A are connected to the width direction ends of the body plate portions 1602 provided at both ends in the thickness direction of the heat insulating material body 14, and extend in the thickness direction of the heat insulating material body 14 so as to approach each other. , are provided so as to cover the end surfaces of the heat insulating material main body 14 in the width direction.
The plate members 1604B are connected to the ends of the plate members 1604A opposite to the ends connected to the body plate portion 1602, extend in the width direction toward the inside of the heat insulating material body 14, and form the fitting recesses 1202A. It is provided so as to cover the side surfaces of the heat insulating material bodies 14 facing each other along the width direction in the forming concave portion.
The plate members 1604C are connected to the ends of the plate members 1604B opposite to the ends connected to the plate members 1604A, and are bent in the thickness direction of the heat insulating material body 14 so as to approach each other, and the opposite ends are Not connected.
Of the widthwise ends of the body plate portion 1602, an end face plate portion 1604 positioned at the other end on the side where the fitting convex portion 1202B is provided is composed of plate members 1604D and 1604E.
The plate members 1604D are connected to the width direction ends of the body plate portions 1602 provided at both ends in the thickness direction of the heat insulating material body 14, and extend in the thickness direction of the heat insulating material body 14 so as to approach each other. , are provided so as to cover the end surfaces of the heat insulating material main body 14 in the width direction.
The plate members 1604E are connected to the ends of the plate members 1604D opposite to the ends connected to the body plate portion 1602, respectively, and extend the heat insulating material body 14 along the width direction of the projecting portion that constitutes the fitting convex portion 1202B. It is provided to cover the sides. Since the plate member 1604E is not connected to the end opposite to the end connected to the plate member 1604D, the end surface of the heat insulating material main body 14 along the thickness direction of the projecting portion constituting the fitting convex portion 1202B is not connected. is not covered.

Therefore, the pair of decorative steel plates 16 cover the side surfaces located at both ends in the thickness direction of the heat insulating material body 14 and part of the end surfaces located at both ends in the width direction.
The fitting concave portions 1202A and the fitting convex portions 1202B at the ends of the adjacent heat insulating panels 12 arranged in the width direction are fitted, so that the adjacent heat insulating panels 12 are joined so as not to be displaceable in the thickness direction. In this embodiment, the joint portion 12A of the heat insulating panel 12 includes a fitting portion 1202 consisting of a fitting concave portion 1202A and a fitting convex portion 1202B.

Next, with reference to FIG. 2, the insulation panel fireproof covering 30 will be described.
The insulation panel fireproof coating 30 includes a noncombustible board 32 and a coating steel plate 34 .
The noncombustible board 32 has a rectangular plate shape having a thickness and a width and height larger than the thickness.
The non-combustible board 32 includes a pair of side surfaces 3202 and 3206 positioned at both ends in the thickness direction of the non-combustible board 32 and a pair of end faces 3204 positioned at both ends in the width direction of the non-combustible board 32 .
As the noncombustible board 32, various conventionally known inorganic materials such as noncombustible gypsum board and calcium silicate board, which are hard and moisture-containing and have lower thermal conductivity than the steel material constituting the decorative steel plate 16, can be used.
The thickness of the noncombustible board 32 is appropriately determined according to the thickness T of the heat insulating panel 12, but from the viewpoint of preventing the formation of gaps due to thermal deformation in the joint 12A of the heat insulating panel 12 in the event of a fire, the heat insulating panel 1/3 to 1/6 of the thickness T of 12 is preferable. In this embodiment, the thickness T of the heat insulation panel 12 is 50 mm, the thickness of the noncombustible board 32 is 9.5 mm, and the thickness of the noncombustible board 24 is approximately 1/5 that of the heat insulation panel 12 .

The coating steel plate 34 includes a body plate portion 3402 , a pair of end plate portions 3404 connected to the body plate portion 3402 , and a pair of flanges 3406 connected to the pair of end plate portions 3404 .
Various conventionally known materials such as a galvanium steel plate can be used as the coating steel plate 34, and the thickness of the steel plate 34 is determined from the viewpoint of preventing the formation of a gap due to thermal deformation in the joint portion 12A of the heat insulating panel 12 in the event of a fire. It is preferable that the thickness is approximately the same as that of the decorative steel plate 16 or equal to or greater than the thickness of the decorative steel plate 16 .
The body plate portion 3402 is joined to one side surface 3202 in the thickness direction of the noncombustible board 32 with an adhesive or caulking agent, and covers the one side surface 3202 of the noncombustible board 32 .
The pair of end plate portions 3404 are connected to both ends in the width direction of the body plate portion 3402 , are joined to the pair of end faces 3204 of the noncombustible board 32 , and cover the pair of end faces 3204 of the noncombustible board 32 .
The pair of flanges 3406 are bent from the tips of the pair of end plate portions 3404 and extend in the direction away from both end surfaces in the width direction of the noncombustible board 32 on the same plane as the other side surface 3206 in the thickness direction of the noncombustible board 32 . are provided. In other words, the pair of flanges 3406 protrude from the tips of the pair of end plate portions 3404 so as to be positioned laterally from both ends of the noncombustible board 32 in the width direction.
That is, the covering steel plate 34 has a generally hat-shaped cross-section, which includes a main body plate portion 3402 and a covering plate portion having a pair of end surface plate portions 3404 and a pair of flanges 3406 .

Next, with reference to FIGS. 1 and 3, the fireproof coating structure 10A for the wall composed of the heat insulating panels 12 as described above will be described together with the coating method.
The plurality of heat insulating panels 12 are arranged in the width direction with the thickness T direction and the width W direction directed horizontally and the height direction directed vertically.
The fitting concave portions 1202A and the fitting convex portions 1202B at the ends of the adjacent heat insulating panels 12 in the width W direction are fitted, and the plurality of heat insulating panels 12 are arranged in a state in which the heat insulating panels 12 cannot be displaced in the thickness direction. They are joined together to form a wall.
Between the opposite ends of the heat insulating panel 12 in the width direction, on both sides of the fitting protrusion 1202B in the thickness direction of the heat insulating panel 12, the sealing material S is placed in a space surrounded by the plate portions 1604A, 1604D, and 1604E. filled.
As the sealing material 30, various conventionally known nonflammable sealing materials having nonflammable properties such as a silicone-based sealing material can be used.
In this embodiment, the wall is a partition wall that separates the indoor and outdoor spaces, and the wall is configured such that the side surface of the heat insulating panel 12 on which the inorganic fiber noncombustible material 14B is provided faces the room or the room. .

The rectangular plate-shaped heat insulating panel fireproof covering 30 is provided so as to cover the entire length in the width W direction and the height direction of the side surface facing the room or the room of the wall composed of the heat insulating panel 12 .
The heat insulating panel fireproof coverings 30 are arranged side by side in the width W direction of the heat insulating panel 12 across the joint portions 12A of the heat insulating panels 12 adjacent in the width W direction.
The width direction of the heat insulating panel fireproof coating 30 (the width direction of the noncombustible board 32) is the same direction as the width W direction of the heat insulating panel 12, and the flanges of the adjacent heat insulating panel fireproof coatings 30 arranged in the width direction 3406 are superimposed on each other in the thickness T direction of the heat insulating panel 12 .
At this time, the flange 3406 of the adjacent heat insulating panel fireproof coating 30 (coating steel plate 34) overlaps the main body plate portion 1602 at the portion where the inorganic fiber noncombustible material 14B is arranged. A body 30 is placed.

As shown in FIGS. 1 and 3, screws 18 as fixing members are attached to the flange 3406 of the covering steel plate 34 and the body plate portion 1602 of the decorative steel plate 16, which are adjacent to each other in the thickness T direction of the heat insulating panel 12. A plurality of covering steel plates 3406 are attached to the heat insulating panel 12 by being inserted through the washers 20 and joined to the heat insulating material main body 14 . Although a tapping screw is used as the screw 18 in this embodiment, any fixing member such as a screw may be used as long as the flange can be joined to the heat insulating material main body 14 .
A plurality of screws 18 are provided at predetermined intervals in the height direction of the heat insulating panel 12 on the flange 3406 of the heat insulating panel fireproof coating 30 .
As a result, the flange 3406 , the decorative steel plate 16 and the heat insulating material main body 14 which are stacked in the thickness direction of the heat insulating panel 12 are joined, and the heat insulating panel fireproof coating 30 is fixed to the heat insulating panel 12 .

Therefore, the adjacent flanges 3406 are superimposed on the decorative steel plate 16 at positions separated from the joint portion 12A of the heat insulating panel 12 in the width W direction, and the superimposed flanges 3406 and the decorative steel plate 16 are inserted and joined to the heat insulating material main body 12. The heat insulating panel fireproof coating 30 is attached to the heat insulating panel 12 with screws 18, and the inorganic fiber noncombustible material superior in noncombustibility compared to the organic heat insulating material 14A is placed inside the decorative steel plate 16 on which the flange 3406 is superimposed. A material 14B is placed.
The tip of the screw 18 that attaches the heat insulating panel fireproof coating 30 to the heat insulating panel 12 is positioned inside the inorganic fiber noncombustible material 14B.
The inorganic fiber-based incombustible material 14B of the present embodiment includes the inside of the decorative steel plate 16 on which the flange 3406 of the heat insulating material body 14 is superimposed, and one end in the width direction of the heat insulating material body 12 closest to the flange 3406 ( (end portion on the side where the fitting recess 1202A is provided).

In addition, at the point where the flange 3406 of the covering steel plate 34 adjacent in the width direction of the heat insulating panel 12 is attached to the heat insulating panel 12 with the screw 18, the end face plate portion 3404 of the adjacent covering steel plate 34 and the flange 3406 form the heat insulating panel. Twelve recesses 36 are formed that are recessed in the thickness direction.
The recess 36 is filled with the sealing material S, and the head of the screw 18 is embedded in the sealing material S. As shown in FIG.

According to the fireproof coating structure 10A for the wall composed of the heat insulating panels 12 of the first embodiment, the wall in which a plurality of heat insulating panels 12 are arranged side by side in the width direction and joined from the noncombustible board 32 and the covering steel plate 34 In order to cover one surface of the heat insulating panel 12 by arranging the configured heat insulating panel fireproof covering 30 in the width direction of the heat insulating panel 12 across the joint portion 12A of the heat insulating panel 12 in the width direction, the heat insulating panel is covered from the decorative steel plate 16. It is possible to suppress heat transfer to the inside of the 12 general portions and the joint portion.
Specifically, when heat during a fire is transmitted to the noncombustible board 32 that constitutes the heat insulating panel fireproof covering 30, the moisture of the noncombustible board 32 is released to the surroundings, and the temperature of the general part of the heat insulating panel 12 rises. This is advantageous in suppressing the spread of fire in the heat insulating material body 14 made of the organic heat insulating material 14A for a predetermined period of time and suppressing fire accidents in the walls made up of the heat insulating panels 12 using the organic heat insulating material 14A.

In addition, the heat-insulating panel fireproof coverings 30 are arranged across the joint 12A of the heat-insulating panel 12 in the width direction, and the flanges 3406 of the adjacent covering steel plates 34 are overlapped at a position away from the joint 12A in the width direction. Since it is joined to the heat insulating material body 14 by the screws 18, the noncombustible board 32 constituting the heat insulating panel fireproof covering 30 is positioned on the side of the joint portion 12A in the thickness direction of the heat insulating panel 12. As shown in FIG.
Therefore, when the heat is transferred to the noncombustible board 32 in the event of a fire, the moisture of the noncombustible board 32 is released around the joint 12A, and the temperature of the heat insulating panel 12 around the joint 12A including the joint 12A rises to a predetermined level. time can be suppressed, and it is possible to prevent a gap from being generated in the joint portion 12A due to thermal deformation.
Therefore, the spread of fire in the general part of the heat insulating panel 12 is suppressed, and the decorative steel plate 16 creates a gap from the joint 12A, and heat and flame are directly transmitted to the organic heat insulating material 14A from the gap, and the organic heat insulating material 14A burns. Fire spread or oxygen is supplied to the internal organic heat insulating material 14A from the gap of the joint 12A, the organic heat insulating material 14A is burned and the fire spread can be suppressed, and the fire accident of the building can be suppressed. advantage over

In addition, since the inorganic fiber noncombustible material 14B is provided inside the decorative steel plate 16 on which the flange 3406 is superimposed, heat is directly transmitted from the screw 18 that penetrates the flange 3406 to the organic heat insulating material 14A. This is advantageous in suppressing the spread of fire from the system heat insulating material 14A, and is advantageous in preventing fire accidents in the building.
In addition, since the inorganic fiber noncombustible material 14B is provided up to one end in the width direction of the heat insulating panel 12, it suppresses the transfer of heat to the fitting portion 1202 in the event of a fire, and the heat insulating panel 12 is joined together. This is advantageous in preventing the formation of gaps in the portion 12A due to thermal deformation.

In addition, since the flanges 3406 of the adjacent covering steel plates 34 are overlapped at a position apart from the joint portion 12A, and the tip of the screw 18 is positioned inside the inorganic fiber noncombustible material 14B, heat in the event of a fire is This is advantageous in suppressing the spread of fire in the organic heat insulating material 14A due to direct transmission to the organic heat insulating material 14A via the 18, and is advantageous in preventing fire accidents in the building.
In addition, at the point where the flange 3406 of the covering steel plate 34 adjacent in the width direction of the heat insulating panel 12 is attached to the heat insulating panel 12 with the screw 18, the end face plate portion 3404 of the adjacent covering steel plate 34 and the flange 3406 form the heat insulating panel. A recess 36 recessed in the thickness direction of the screw 12 is formed, the recess 36 is filled with the sealing material S, and the head of the screw 18 is embedded in the sealing material S. It is advantageous in suppressing the transmission of
Further, in the decorative steel plate 16, neither the plate member 1604C nor the plate member 1604E connected from the body plate portions 1602 at both ends in the thickness direction of the heat insulating material body 14 are connected. That is, since the decorative steel plate 16 is not connected to the main body plate portions 1602 at both ends in the thickness direction of the heat insulating material body 14, the heat in the event of a fire is prevented from being transmitted to the outdoor side (or outdoor side) through the decorative steel plate 16. It is advantageous in doing so. Moreover, it is advantageous in enhancing the heat insulating performance of the wall even in normal times when no fire occurs.
Further, the use of the heat-insulating panel fireproof coating 30 of the present embodiment is advantageous in easily and reliably constructing the wall fireproof coating structure 10A of the present embodiment.

(Second embodiment)
In the first embodiment, the fitting portion 1202 of the connecting portion 12A is composed of the fitting concave portion 1202A and the fitting convex portion 1202B. The difference is that it is composed of a fitting recess 1204 provided and a fitting board 22 that is separate from the heat insulating panel 12 .
In the following description of the embodiment, the same reference numerals are assigned to the same parts and members as in the first embodiment, and the description thereof will be omitted, and the parts different from the first embodiment will be emphasized. to explain.

A fireproof coating structure 10B for a wall composed of heat insulating panels according to the second embodiment will be described with reference to FIG.
The fitting portion of the connection portion 12B of the present embodiment is a fitting recess 1204 provided at the center of the end surface of the heat insulating material body 14 adjacent in the width direction of the heat insulating panel 12 and recessed toward the center in the width direction. and a fitting board 22 that is fitted across the fitting recess 1204 of the adjacent heat insulating material body 14 .
Similar to the incombustible board 30, the fitting board 22 is hard, incombustible, and contains water, such as a gypsum board or a calcium silicate board, which has a lower thermal conductivity than the steel material forming the decorative steel plate 16, and a conventionally known material. Various inorganic materials can be used.
The inorganic fiber incombustible material 14B and the fitting board 22 have an overlapping portion 22A extending in the width direction of the heat insulating panel 12 while being in contact with each other in the thickness direction of the heat insulating panel 12. As shown in FIG.

According to the fireproof covering structure 10B of the wall composed of the heat insulation panel 12 of the second embodiment, the following effects are exhibited in addition to the effects of the fireproof covering structure of the first embodiment.
Since the joint portion 12B of the heat insulating panel 12 includes the fitting board 22, when heat in the event of a fire is transferred to the fitting board 22, the moisture of the fitting board 22 is released around the joint 12B. As a result, the temperature rise of the joint 12B is suppressed for a predetermined period of time, which is advantageous in preventing the formation of gaps due to thermal deformation in the joint 12B. This is advantageous in suppressing accidents.
In addition, since the inorganic fiber noncombustible material 14B and the fitting board 22 have an overlapping portion 22A that extends in the width direction of the heat insulating panel 12 while being in contact with the heat insulating panel 12 in the thickness direction, This is advantageous in suppressing the temperature rise of the joint 12B due to the heat of the organic heat insulating material 14A, and is advantageous in suppressing the fire accident of the wall composed of the heat insulating panel 12 using the organic heat insulating material 14A.

10A, 10B fireproof coating structure of wall 12 heat insulating panel 12A, 12B joint portion 1202 fitting portion 1202A fitting concave portion 1202B fitting convex portion 1204 fitting concave portion 14 heat insulating material main body 14A organic heat insulating material 14B inorganic fiber noncombustible material 16 makeup Steel plate 1602 Body plate portion 1604 End plate portion 18 Screw 22 Fitting board 30 Heat insulation panel fireproof coating 32 Noncombustible board 3202, 3206 Side surface 3204 Pair of end faces 34 Covering steel plate 3402 Body plate portion 3404 End plate portion 3406 Flange

Claims (6)

A plurality of heat insulating panels having a thickness and a width and height larger than the thickness are arranged in the width direction, and include a heat insulating material body containing an organic heat insulating material and a pair of decorative steel plates covering both sides of the heat insulating material body. a refractory cladding structure for a wall, comprising:
A heat-insulating panel fireproof covering provided on one side in the thickness direction of the heat-insulating panel across the joints of the adjacent heat-insulating panels in the width direction,
The heat insulating panel fireproof covering includes a noncombustible board made of an inorganic material having a thickness, a width and a height larger than the thickness, and one side surface in the thickness direction and the width direction of the noncombustible board. A covering plate portion covering both end surfaces of the noncombustible board and a pair of flanges extending in a direction away from both ends in the width direction of the noncombustible board.
The flanges of the adjacent covering steel plates are superimposed on the decorative steel plate, and a fixing member that inserts the superimposed flanges and the decorative steel plate and joins the heat insulating material main body to the heat insulating panel fireproof covering is the Mounted on the insulation panel,
An inorganic fiber noncombustible material is provided inside the decorative steel plate on which the flange is superimposed,
A fireproof covering structure for a wall composed of heat insulating panels characterized by: The inorganic fiber noncombustible material is provided up to one end in the width direction of the heat insulating material body,
The fireproof coating structure of the wall composed of the heat insulating panel according to claim 1, characterized in that: The flanges of the adjacent coating steel plates are overlapped at a position away from the joint,
The tip of the fixing member is located inside the inorganic fiber noncombustible material,
3. A fireproof coating structure for a wall composed of the heat insulating panel according to claim 1 or 2, characterized in that: The joint portion includes a fitting portion,
The fitting portion includes a fitting recess that is provided on the end face in the width direction of the adjacent heat insulating panel and is recessed toward the center in the width direction, and a fitting recess that is fitted over the fitting recess of the adjacent heat insulating panel and is made of an inorganic material. a formed mating board,
4. A fireproof covering structure for a wall composed of the heat insulating panel according to any one of claims 1 to 3, characterized in that: The inorganic fiber incombustible material and the fitting board have an overlapping portion extending in the width direction of the heat insulating panel while being in contact with each other in the thickness direction of the heat insulating panel.
5. A fireproof coating structure for a wall composed of heat insulating panels according to claim 4, characterized in that: The noncombustible board includes a pair of side surfaces located at both ends in the thickness direction of the noncombustible board and a pair of end surfaces located at both ends in the width direction of the noncombustible board,
The covering plate portion includes a body plate portion joined to one of the side surfaces of the incombustible board, and a body plate portion connected to both ends in the width direction of the body plate portion and joined to the pair of end faces, from which the flanges protrude. provided with a pair of end plate portions,
At a location where the flange of the covering steel plate adjacent in the width direction of the heat insulating panel is attached to the heat insulating panel by the fixing member, the heat insulating panel is formed by the end surface plate portion of the adjacent covering steel plate and the flange. A concave portion is formed that is recessed in the thickness direction of the
The concave portion is filled with a sealing material, and the head portion of the fixing member is embedded in the sealing material.
6. A fireproof coating structure for a wall composed of the heat insulating panel according to any one of claims 1 to 5, characterized in that:

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