KR20210016468A - Partition panels, partition walls and room structures - Google Patents

Abstract

It provides a partition panel that combines high fire resistance and heat insulation, and a partition wall and room structure using it in a long length. A preferred partition panel 1 according to the present invention is a surface material 11 and a back material 12 made of a metal material, and a plurality of organic heat-insulating board layers 13 disposed between the surface material 11 and the back material 12 , 14) and the inorganic board layer 15 sandwiched between the plurality of organic heat-insulating board layers 13, 14, and a surface material 11 adjacent to the surface material 11 among the plurality of organic heat-insulating board layers, and Among the plurality of organic heat-insulating board layers, the one adjacent to the back material 12 and the back material 12 are each bonded to each other by an organic adhesive.

Description

Partition panels, partition walls and room structures

The present invention relates to a partition panel, a partition wall, and a room structure.

In conventional buildings, fire prevention divisions are formed for each predetermined area (area division) or between rooms with different uses (different usage divisions), such as the boundary between a warehouse and a cargo handling room, to prevent internal combustion in the event of a fire. Prevention is planned. For the partition wall constituting the fire partition wall among the walls constituting the building, the fire resistance performance of 1 hour is required according to the Building Standard Law.

However, with the expansion of logistics demand these days, refrigerated warehouses are becoming larger. Since these buildings are also subject to fire protection, it is necessary to divide them by partition walls. However, after having both fire resistance and heat insulation properties, the partition wall needs to be elongated in order to continue from the fire resistant floor to the fire resistant roof, making it increasingly difficult to select a material. Therefore, in the related art, after partitioning with a partition wall such as fire-resistant lightweight foamed concrete, a room to be a cold storage warehouse was constructed by using insulating panels such as metal sandwich panels on both sides of the wall.

However, in this case, since the air-conditioning temperature is different between the insulation panel and the partition wall serving as the fire compartment, condensation tends to occur on the surface of the insulation panel, and these spaces are narrow and difficult to clean. There is a problem that is prone to damage. Therefore, in order to suppress such damage, a partition wall that has both fire resistance and high heat insulation properties and can be used in a long length has been demanded.

Conventionally, as a building panel, a core material made of lock wool is sandwiched between metal plates and bonded thereto (for example, see Patent Document 1). However, although the building panel made of lock wool as a core material has high fire resistance, the insulation performance is insufficient as a partition wall of a cold storage warehouse.

In order to use the partition wall made of lock wool as a core material for a cold storage warehouse, not only the heat insulation properties of lock wool make the wall thickness extremely thick, but also lock wool has high moisture vapor and gas permeability, and has great hygroscopic properties. Has absorbency. Therefore, internal condensation is liable to occur, and water vapor or moisture once entered into the wall freely moves through the wall, causing great damage and making it difficult to repair.

Further, in Patent Document 2, a fireproof panel is proposed in which a core material made of a phenol resin foam to which an inorganic material is added is sandwiched between a surface material made of a metal material and a back material material. However, the fire resistance of the fireproof panel is still insufficient to be used as a partition wall, and structurally, it has been difficult to use it as a long partition wall.

Therefore, in Patent Document 3, a heat insulating fireproof sandwich panel in which an organic heat insulating board layer and an inorganic board layer are laminated and bonded between a front material made of a metal material and a back material is proposed.

Japanese Patent Publication No. 3657692 Japanese Patent Publication No. 3306439 Japanese Unexamined Patent Publication No. 2007-132102

However, even in the case of the heat insulating fireproof sandwich panel described in Patent Document 3, the fire resistance as a partition wall is still insufficient, and there has been a problem in that the fire resistance performance for one hour cannot be satisfied.

Accordingly, an object of the present invention is to provide a partition panel having both high fire resistance and heat insulation properties, and a partition wall and a room structure using the same in a long length.

The present invention to solve the above problems is as follows.

[1] a surface material and a back material made of a metal material,

A plurality of organic heat-insulating board layers disposed between the surface material and the back material, and an inorganic board layer sandwiched between the plurality of organic heat-insulating board layers,

A partition, characterized in that the plurality of organic insulating board layers adjacent to the surface material and the surface material, and the plurality of organic insulating board layers adjacent to the back material and the back material are each adhered to each other by an organic adhesive. panel.

[2] The partition panel according to [1], wherein the inorganic board layer is made of lightweight aerated concrete.

[3] The panel for partitions according to [1] or [2], having a non-combustible reinforcing material in the inorganic board layer.

[4] The panel for partitions according to any one of [1] to [3], wherein one of the plurality of organic heat insulating board layers adjacent to the inorganic board layer and the inorganic board layer are mechanically fixed.

[5] The above [1] to [wherein the inorganic board layer is composed of a plurality of inorganic boards adjacent to each other in the in-plane direction, and the small mouth surfaces of the plurality of inorganic boards are adhered to each other by a fire-resistant adhesive. The partition panel according to any one of 4].

[6] Of the above [1] to [4], wherein the inorganic board layer is composed of a plurality of inorganic boards adjacent in the in-plane direction, and a thermally expandable sheet material is loaded between the small spherical surfaces of the plurality of inorganic boards. The partition panel according to any one of the preceding claims.

[7] The inorganic board layer is composed of a plurality of inorganic boards adjacent to each other in the in-plane direction, and the plurality of inorganic boards are mutually formed against movement in an out-of-plane direction, an in-plane direction, or an out-of-plane direction and an in-plane direction by means of a connecting bracket. The partition panel according to any one of the above [1] to [6], which is fixed.

[8] The partition panel according to any one of [1] to [7], wherein the number of the plurality of organic heat-insulating board layers is two.

[9] The panel for partitions according to any one of [1] to [8], wherein the resin constituting each of the organic heat-insulating board layers is made of a thermosetting resin.

[10] As a vertical partition wall that spans between the floors of a building and is fixed at the top and bottom of the building,

A partition wall, wherein a plurality of partition panels according to any one of [1] to [9] are disposed adjacent to each other in the width direction.

[11] The partition wall according to [10], in which a thermally expandable sheet material is filled in the joints between the plurality of partition panels.

[12] The partition wall according to [10] or [11], in which an end portion in the width direction of the front member and an end portion in the width direction of the back member are overlapped and connected to each other for partition panels adjacent to each other.

[13] so that the upper and lower ends of the partition panel are constrained in the out-of-plane direction of the partition panel by a mounting material fixed to the frame of the building, and the fixing member does not penetrate the inorganic board layer through the hole of the mounting member. The partition wall according to any one of [10] to [12], which is fixed by fastening to the front member and the back member.

[14] The interior of a building composed of a roof, a floor, and an outer wall is partitioned by the partition wall according to any one of the above [10] to [13], and a high thermal insulation ceiling material is connected to an intermediate position of the partition wall, A room, characterized in that at least one of the partition walls has a room partitioned by the partition wall, the ceiling material, wall material, and floor material, and the room is divided into a highly insulating flooring material and wall material, and the partition wall and the ceiling material. rescue.

Advantageous Effects of Invention According to the present invention, it is possible to provide a partition panel having both high fire resistance and heat insulation properties, and a partition wall and room structure using the same.

1A is an overall view of an example of a partition panel according to the present invention.
1B is a view showing a part of a cross-sectional view in the width direction of an example of a partition panel according to the present invention.
2A is a view showing an organic heat insulating board layer composed of a plurality of boards.
2B is a diagram illustrating a preferred method of adhering adjacent organic heat insulating board layers.
2C is a diagram showing an inorganic board layer composed of a plurality of boards.
Fig. 2D is a diagram showing a preferred arrangement relationship of horizontal joints in an organic heat insulating board layer and horizontal joints in an inorganic board layer.
Fig. 3A is a diagram for explaining a method of mechanically fixing the organic insulating board layer and the inorganic board layer using an anchor material when the organic insulating board layer has a two-layer structure.
Fig. 3B is a diagram for explaining a method of mechanically fixing the organic insulating board layer and the inorganic board layer using a screw when the organic insulating board layer has a two-layer structure.
Fig. 3C is a diagram explaining a method of mechanically fixing the organic insulating board layer and the inorganic board layer using screws when the organic insulating board layer has a one-layer structure.
4A is an overall view of a preferred example of a partition wall according to the present invention.
Fig. 4B is a vertical cross-sectional view of the partition wall shown in Fig. 4A.
5A is an overall view of a cross-sectional view of a partition wall according to the present invention.
5B is an enlarged view of a joint portion between panels in a cross-sectional view in the width direction of a partition wall according to the present invention.
6A is a diagram illustrating an example of a joint structure between panels.
6B is a diagram illustrating another example of a joint structure between panels.
6C is a diagram illustrating another example of a joint structure between panels.
7 is a diagram showing an example of a room structure according to the present invention.
8 is a diagram showing an example of a conventional room structure.
9A is an enlarged view of a connecting portion of a partition wall and a heat insulating material according to the present invention.
Fig. 9B is an enlarged view of a portion of the partition wall of Fig. 9A connected to a heat insulating material with respect to the partition wall in which the organic insulating board layer and the inorganic board layer are replaced.
10 is a diagram for explaining the behavior of the partition wall according to the present invention during a fire resistance test.
11A is a diagram showing the relationship between the time in the fire resistance test and the furnace temperature of the partition wall (heating temperature during the heating time).
Fig. 11B is a diagram showing the relationship between time in a fire resistance test and the temperature of the back surface of the partition wall.

(Partition panel)

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Fig. 1A shows an overall view of an example of a partition panel according to the present invention, and Fig. 1B shows a part of a cross-sectional view in the width direction. The partition panel 1 shown in FIG. 1A is a surface member 11 and a back surface member 12 made of a metal material, and two organic heat-insulating board layers 13 disposed between the surface member 11 and the back surface member 12. 14) and the inorganic board layer 15 sandwiched between the two organic heat-insulating board layers 13 and 14. Here, one of the two organic heat-insulating board layers (13) and the surface material (11), and the other side (14) of the two organic heat-insulating board layers and the back material (12) are each bonded with an organic adhesive, and the It is characterized in that the resin constituting each of the two organic heat-insulating board layers 13 and 14 is made of a thermosetting resin.

In this embodiment, as shown in FIG. 1B, the periphery of the surface material 11 and the back material 12 are bent toward the organic heat insulating board layers 13 and 14. And the bent portions (first bent portions) 11a, 12a are configured to engage with the concave portions 13a, 14a formed at the peripheral edges of the organic heat insulating board layers 13, 14. Between the surface material 11 (the back material 12) and the organic heat insulating board layer 13 (14), an adhesive layer 16 (17) composed of an organic adhesive is formed, and a part of the organic adhesive is first bent It enters between the part 11a (12a) and the organic heat-insulating board layer 13, 14, and improves the integrity of the surface material 11 (back surface material 12) and the organic heat-insulating board layer 13(14) .

-Surface material and back material-

When the surface material 11 and the back surface material 12 are heated, it peels from the organic heat-insulating board layers 13 and 14, and is comprised so that it may expand and deform|transform greatly toward a heating side. The front material 11 and the back material 12 are made of a metal material, and a metal material formed into a predetermined cross-sectional shape by press molding, extrusion molding, roll molding, or the like can be used. As a metal material, for example, hot-dip 55% aluminum-zinc plated steel sheet, hot-dip galvanized steel sheet, coating hot-dip 55% aluminum-zinc plated steel sheet (coating: polyester resin, acrylic resin, silicone resin, amino-alkyd resin, chloride Vinyl resin, fluorine resin, epoxy resin, urethane resin), painted hot-dip galvanized steel sheet (painting: polyester resin, acrylic resin, silicone resin, amino alkyd resin, vinyl chloride resin, fluorine resin, epoxy resin Resin, urethane resin), coated stainless steel plate (coating: polyester resin, acrylic resin, silicone resin, amino alkyd resin, vinyl chloride resin, fluorine resin, epoxy resin, urethane resin), vinyl chloride resin film coating /Metal plate, high weather resistance rolled steel (coating: epoxy resin, urethane resin), double-sided polyester resin coating/melted aluminum plated steel plate, ferritic stainless steel plate, double-sided acrylic resin coating/zinc alloy plate, etc. can be used. In addition, the painting of the metal plate is generally performed not only on the surface but also on the surface bonded to the organic insulation board. In this case, resin is selected from the viewpoint of adhesion of the adhesive at room temperature and initial combustibility during heating, and polyester resin , It is preferable to use a urethane resin and an acrylic resin.

The dimensions of the front member 11 and the back member 12 can be appropriately set according to the design, and for example, the length can be 0.6 to 12 m and the width can be 300 to 1000 mm. In addition, the thickness of the surface material 11 and the back material 12 can be 0.3 to 1.6 mm in terms of strength, weight, and economy, but more preferably 0.4 to 1.0 mm.

―Organic insulation board layer―

The organic heat-insulating board layers 13 and 14 are layers for making the partition wall have heat-insulating properties, and the organic heat-insulating board layers 13 and 14 make the inorganic board layer 15 thick and the organic heat-insulating board layer 14 on the back side. The material is not limited as long as the heat resistance is higher by preventing the temperature of) from rising. As a resin constituting such an organic heat-insulating board layer, a polyimide foam, a PET resin foam, or the like can be used. However, in the case of trying to reduce weight by making the inorganic board layer 15 as thin as possible, the organic heat-insulating board layer in terms of the coating effect of the inorganic board layer 15 on the heating side and the heat resistance of the organic heat-insulating board layer 14 on the non-heating side. As (13, 14), it is preferable to use an organic heat-insulating board layer in which the constituting resin is made of a thermosetting resin. Thereby, when the surface material 11 (the back material 12) is heated, after the surface material 11 (the back material 12) and the organic heat insulating board layer 13 (14) are peeled, the organic heat insulating board layer 13 ( 14)) can be fixed to the surface of the inorganic board layer 15.

In addition, in Figs. 1A and 1B, the organic heat-insulating board layer is composed of two sheets, and the inorganic board layer 15 is sandwiched between them, but the organic heat-insulating board layer can be composed of three or more sheets. For example, the organic heat-insulating board layer is constituted by four, and the inorganic board layer 15 can be sandwiched between the second and third sheets.

--Thermosetting resin--

As the thermosetting resin, a polyurethane resin, isocyanurate resin, phenol resin, or the like can be used. Among them, from the viewpoint of having high flame retardancy, it is preferable to use a phenol resin as the thermosetting resin, and it is more preferable to select one having expandability when heated and carbonized.

As the organic heat-insulating board layers 13, 14, a thermosetting resin, a curing agent, a foaming agent, and the like are mixed together, foamed and cured, and the obtained resin foam is formed into a board shape. In addition, the organic heat-insulating board layers 13 and 14 are those having a face material on the front and back surfaces in terms of molding conditions and adhesion to the surface material 11 (back material 12) or the inorganic board layer 15. Also works.

The organic heat-insulating board layers 13 and 14 having such a resin foam and face material include a mixture of a thermosetting resin, a curing agent, a foaming agent, etc. on the face material, and the mixture is discharged onto a face material running at a constant speed, and then between conveyors in the curing furnace It can be formed by molding into a board shape.

In addition, as for the organic heat-insulating board layers 13 and 14, after preliminarily installing the surface material 11, the back material 12, and the inorganic board layer 15 at predetermined intervals, an organic resin material is injected into the gap. It may be composed of. In this case, if the organic resin material is appropriately selected, the adhesive can be used also by its self-adhesive strength.

As the face material, a polyester nonwoven fabric, a polypropylene nonwoven fabric, an aluminum foil, a non-flammable processed paper, and a combination of these materials can be used. In the case of bonding the organic heat-insulating board layers 13 and 14 to the inorganic board layer 15 through the face material, the organic heat-insulating board layers 13 and 14 from the surface of the inorganic board layer 15 It is important not to drop out for a long time. Therefore, the use of a non-flammable face material or a heat-resistant adhesive is most advantageous in terms of fire resistance, but since these are all expensive, an organic face material may be used within a range that does not impair fire resistance. In addition, countermeasures against adhesive peeling, etc., which occur when water vapor generated from the inorganic board layer 15 during the fire test is accumulated between the face material and the inorganic board layer 15 are important, and use of a face material having moisture permeability is also important. desirable. In these respects, among organic cotton materials, polyester nonwoven fabrics are preferable because they have performances in terms of price, heat resistance, and moisture permeability.

The dimensions of the organic heat-insulating board layers 13 and 14 can be appropriately set according to the design of the partition panel 1. The organic heat-insulating board layers 13 and 14 can be configured by arranging a plurality of organic heat-insulating boards 13b (14b) in the longitudinal direction, as shown in Fig. 2A, and exceeding the length of the panel 1 You can cut to fit the length. In addition, the organic heat-insulating board layers 13 and 14 can be configured by arranging a plurality of organic heat-insulating boards 13b (14b) in the width direction, and the width of those exceeding the width of the panel 1 is cut Can fit. In this way, the organic heat-insulating board layers 13 and 14 can be constituted by a plurality of organic heat-insulating boards 13b (14b) adjacent in the in-plane direction.

It may be bonded between the globules of these adjacent organic heat-insulating boards 13b (14b), but especially when using a resin that expands during carbonization, fire resistance does not decrease even if omitted, and the bending strength and shear of the panel It can be decided according to strength and manufacturing circumstances. Moreover, you may arrange|position by forming a gap between the small openings of the adjacent organic heat insulating board 13b (14b). In this case, when the surface material 11 and the back material 12 are pressed when bonding the organic heat-insulating board 13b (14b) and the surface material 11 (the back material 12) using an organic-based adhesive, the organic-based adhesive causes the gap In addition, the adjacent organic heat-insulating board 13b (with 14) is firmly fixed, and the strength performance of the panel 1 can be improved. When the organic heat-insulating board 13b (14b) is thin, it is possible to obtain a strength that is not significantly different from bonding by applying an adhesive to the entire surface of the globules.

In addition, when the organic heat-insulating board 13b (14b) is composed of the above-described resin foam and a face material, and when bonding between the globules of the adjacent organic heat-insulating board 13b (14b), an adhesive is applied to the microspheres Insulation boards (13b (14b)) are pressed against each other. At that time, since the resin foam part has elasticity and is compressed, since the face material does not have elasticity, the face material in the vicinity of the small spherical surface becomes redundant, and the adhesion of the small spherical surface decreases, and the organic insulation board 13b (14b )) the adhesion between them is deteriorated.

So, as shown in FIG. 2B, it is preferable to remove the corner part near the small spherical surface of the organic heat insulating board 13b (14b). Thereby, since the face material 13c in the vicinity of the small spherical surface is removed, when the adjacent organic heat insulating boards 13b (14b) are pressed together, the face material 13c in the vicinity of the small spherical surface does not become excessive, The adhesiveness of the small sphere surface can be improved by forming a pool of the adhesive that remains when pressed and collected under the small sphere surface. In this way, the adhesive strength between the organic heat-insulating boards 13b (14b) can be improved. The cross-sectional range of removing the corners is appropriately set in consideration of the amount of adhesive applied, viscosity, and pressure to pressurize the small spherical surface. In general, a quarter circle shape with a radius of 1 mm to 5 mm or a side of 1 mm It may be carried out on a triangular part of -5 mm. In addition, although it is generally formed over the entire length in the longitudinal direction, it is also preferable to remove slightly larger portions where adhesive is likely to accumulate, such as the edge of the side.

Further, as described above, since the resin foam 13d has elasticity, the flatness of the small spherical surface itself or the dimension by removal of the corner portion are reduced by pressing the organic heat insulating boards 13b (14b) together. It can absorb errors.

Further, from the viewpoint of heat insulation, strength, and economy, the thickness of the organic heat-insulating board layers 13 and 14 is 20 to 150 mm, more preferably 30 to 100 mm, and the density is 20 to 80, more preferably 25 to It is set to 50 kg/㎥.

―Organic adhesive―

In the present invention, it is important that the surface material 11 (the back material 12) and the organic heat-insulating board layer 13 (14) are adhered by an organic adhesive. Thereby, when the surface material 11 (back panel 12) is heated, the organic adhesive is burned at about 250 to 400° C. and adhesiveness is lost, so that the surface material 11 (the back material 12) and the organic heat-insulating board layer ( 13 (14)) can be peeled favorably. As a result, the organic heat-insulating board layers 13 and 14, the inorganic board layer 15 and the backing material 12 do not follow the deformation of the surface material 11, and large deformations or cracks occur in them, or between materials or materials. By preventing internal peeling from occurring, the integrity and flatness of these materials are maintained, and fire resistance can be exhibited.

The organic adhesive is not particularly limited as long as the surface member 11 (back surface member 12) burns at the initial stage of heating and loses its function as an adhesive. Examples of such organic adhesives include urethane resin (main component: urethane resin, solvent: esters, ketones), epoxy resin system (main component: (subject) epoxy resin, (curing agent) modified polyamine, modified polythiol, solvent: esters, ketones, alcohol ), vinyl acetate resin (main component: vinyl acetate resin, solvent: alcohols, esters, ketones), and modified silicones. Among them, it is preferable to use a urethane resin type or an epoxy resin type as the organic type adhesive from the viewpoint of being suitable for use under low temperature.

―Inorganic board layer―

The inorganic board layer 15 is an important layer in order to exhibit fire resistance as a panel, and can be constituted by lightweight aerated concrete, gypsum board, calcium silicate board, or the like. Among these, it is preferable that the inorganic board layer 15 is composed of lightweight foamed concrete. As lightweight aerated concrete, it is preferable to have a specific gravity of about 0.5, cured at high temperature and high pressure, and reinforced with a reinforced mat or metal lath (steel wire mesh) that has been cured at high temperature and pressure, and a specific gravity of about 0.35 is heat insulating and lightweight. It is preferable because it is better. In addition, the lightweight aerated concrete can be easily disposed inside a metal lath or a reinforced mat due to the characteristic of its manufacturing method.

When the inorganic board layer 15 is composed of a gypsum board or calcium silicate plate, these materials have a large number of crystals, and have been widely used for fireproofing applications in the past, but after the crystallization water is released, a large amount of warpage or cracking occurs. For this reason, it is necessary to increase the thickness or to mount a non-combustible reinforcing material inside. Since it is difficult to load the reinforcing material inside with the current molding method, it is necessary to use a method such as stacking a plurality of sheets and sandwiching them between them. For the adhesion of the gypsum board and calcium silicate plate, an organic adhesive may be used, but if an inorganic adhesive using water glass or colloidal silica as a binder and an oxide such as alumina as a filler is used, it is long during or after heating. It is preferable because it can maintain adhesiveness.

Further, as the non-flammable reinforcing material, a glass fiber net, metal lath, or the like can be used.

The dimensions of the inorganic board layer 15 can be appropriately set according to the design of the partition panel 1. As shown in Fig. 2C, the inorganic board layer 15 can be configured by arranging a plurality of inorganic boards 15a in the longitudinal direction, and cut to meet the length exceeding the length of the panel 1 I can. In addition, the inorganic board layer 15 can be configured by arranging a plurality of inorganic boards 15a in the width direction, and can be cut to match the width of those exceeding the width of the panel 1. In this way, the inorganic board layer 15 can be constituted by a plurality of inorganic boards 15a adjacent in the in-plane direction.

Further, the plurality of inorganic boards 15a constituting the inorganic board layer 15 shown in Fig. 2C are arranged so that the vertical joints are shifted, but may be arranged so that the vertical joints are aligned in a straight line.

When the inorganic board layer 15 is composed of a plurality of inorganic boards 15a, the small spherical surfaces of the plurality of inorganic boards 15a are adhered to each other with a fire-resistant adhesive, or between the small spherical surfaces of the plurality of inorganic boards 15a It is preferable to mount a thermally expandable sheet material, or to fix a plurality of inorganic boards 15a with a connecting bracket against movement in an out-of-plane direction, an in-plane direction, or an out-of-plane direction and an in-plane direction, or to use these means together.

As the refractory adhesive, one containing sodium silicate as a main component and adding inorganic ingredients such as silica, kaolin, talc, and clay minerals, or adding an organic additive such as a styrene-butadiene copolymer to improve workability can be used. . In addition, those in which a binder appropriately added to a cement-based material can be used.

In addition, as a thermally expandable sheet material, an inorganic material that starts expansion at about 150 to 200°C, expands at about 5 to 15 times at 300°C and about 10 to 30 times at 600°C, and does not disappear even at a heating temperature of about 900°C. What is formed into a sheet shape containing about half of the material can be used by processing it into a predetermined dimension. As a composition, for example, expanded graphite, which is an expanding material, is added to an inorganic filler such as boric acid that forms an expanding layer, and an additive such as mineral oil and carbon black, and a binder such as butyl rubber are added to form a sheet shape. Etc. can be used. In addition, when boric acid is used as the inorganic filler, aluminum oxide is added in a weight ratio of 0.45 or more and 1.5 or less with respect to boric acid, and the total content of the silicic acid compound, magnesium salt and calcium salt is less than 10% by weight with respect to boric acid, It is preferable to increase the ability to maintain the shape of the thermally expandable sheet material after expansion.

When arranging the inorganic board layer 15 between the two organic heat-insulating board layers 13 and 14, as shown in FIG. 2D, the horizontal joint and the inorganic board layer 15 in the organic heat-insulating board layers 13 and 14 ), it is preferable that the horizontal joint is shifted in the longitudinal direction. Thereby, the strength of the partition panel 1 can be improved. It is preferable to make this deviation about 1-3 times the thickness of the organic heat-insulating board layers 13 and 14. In addition, it is preferable to form a deviation of the same degree in terms of fire resistance and heat insulation properties.

For adhesion between the inorganic board layer 15 and the organic heat insulating board layers 13, 14, it is important to select a material so as not to drop off the carbonized organic heat insulating board as much as possible during the fire resistance test. The fire resistance is improved by using an inorganic adhesive, but it takes time to produce it as the panel (1). In the case of using an organic adhesive, in the fire resistance test, it is considered that the surface temperature on the heating side of the inorganic board is limited to 100° C. for a long time while the crystal water of the inorganic board layer 15 evaporates, and sufficient adhesion is maintained at at least 100° C., In addition, it is necessary to select a material that does not cause a decrease in adhesive strength by the jetted water vapor. As a material having such properties, it is preferable to use a urethane resin, an epoxy resin, or the like. In addition, the use of the same adhesive as for the surface material 11 (back surface material 12) and the organic heat-insulating board layer 13 (14) is preferable because it is excellent in production efficiency.

In addition, the amount of adhesive applied is generally preferably 100 to 500 g/m2 per layer, and is determined according to the type of base material of each adhesive layer, the flatness of the surface, the pressure and time of the press after application, and the target performance as a partition panel. .

When a large bending load is required as the partition panel (1), it is necessary to adhere firmly until the breakdown of the base metal occurs in each adhesive layer, and the amount of the adhesive applied to the surface material (11 (12)) Between the heat insulating board layers 13 (14), 100 to 300 g/m 2 is preferable, and between the organic heat insulating board layers 13 and 14 are preferably 100 to 300 g/m 2, and the organic heat insulating board layer 13 Between (14)) and the inorganic board layer 15, 200-500 g/m<2> is preferable.

If the amount of coating between the surface material 11 (the back material 12) and the organic insulation board layer 13 (14) is too large, considering the time until peeling when heated in a fire, 100 to 500 g/ M2 is preferred. It is preferable that the adhesive spreads evenly over the whole by pressing for each layer, and the application amount and press pressure of the adhesive are determined according to the viscosity of the adhesive, the flatness of the material to be bonded, and the ease of spreading of the adhesive. When the coating amount is too large between the organic insulating board layers 13 (14) and between the organic insulating board layers 13 (14) and the inorganic board layer 15, the adhesive is prevented from protruding from the layers during pressing. From the viewpoint of preventing (appearance), 100 to 500 g/m 2 is preferable.

In addition, when bonding the inorganic board layer 15 and the organic heat insulating board layers 13, 14 using an adhesive, it is preferable to apply a primer to the surface of the inorganic board layer 15 before applying the adhesive. . Thereby, the primer is impregnated into the inorganic board layer 15, and the adhesive strength of the inorganic board layer 15 and the organic heat insulating board layers 13, 14 can be improved.

By applying a primer, even if the amount of adhesive applied is reduced by that amount, the same adhesive strength can be obtained, as well as reducing the cleaning effort such as dust on the surface of the inorganic board layer 15, or the influence of the hydration state of the inorganic board layer 15 It is possible to make it difficult to receive or reduce the variation in adhesive strength. It is also possible to compress the entire material cost for adhesion.

As the primer, heat resistance can be improved by using thermosetting resins such as epoxy-based, urethane-based and phenol-based. On the other hand, although the acrylic primer is thermoplastic, it has relatively good heat resistance, and is particularly excellent in terms of workability and cost, so it may be used in consideration of these properties comprehensively.

In addition, when the thickness of the inorganic board layer 15 is relatively small, the inorganic board layer 15 and the organic insulation board layers 13 and 14 are bonded to each other by using an adhesive as described above, thereby causing a high temperature environment due to fire or the like. There is a fear that the adhesion cannot be maintained when placed. In such a case, when the organic heat-insulating board layer 14 and the inorganic board layer 15 on the non-heating side are mechanically fixed, even after the adhesion between the organic heat-insulating board layer 14 and the inorganic board layer 15 on the non-heating side has fallen, The inorganic board layer 15 does not come off immediately, and fire resistance can be maintained. In the above description, the organic heat-insulating board layer 13 is the heating side, but when the fire occurs on the opposite side of the partition wall, the heating side is the non-heating side, so the organic heat-insulating board layer 13 and the inorganic board Layer 15 also needs to be mechanically fixed.

Specifically, the organic heat-insulating board layers 13 and 14 and the inorganic board layer 15 are machined using an anchor material (A) as shown in Fig. 3A or a screw (V) as shown in Fig. 3B. Can be fixed. Thereby, when placed in a high temperature environment, organic fire resistance on the non-heating side can be maintained.

As the anchor material (A), an extension-end anchor or an extension-end nail can be used. These are for fixing the inorganic board layer 15 to the organic heat insulating board layer 13 (14). Since the inorganic board layer 15 is stacked, its own weight is transferred to the bottom, and finally, it is transferred to the floor slab through the lower joint material, so it is necessary to have the pull-out strength required for integration, but for safety It is more preferable to allow the respective anchor members (A) to bear their own weight of the inorganic board layers 15 sheet by sheet. In order to secure the pull-out strength, the area of the cross section orthogonal to the axial direction of the head portion of the anchor member (A) is important, but in order to support its own weight acting in the vertical direction, the axial cross section of the anchor member (A) is organic. The area in contact with the insulating board layer 13 (14) is important. In that case, it is preferable to use a shaft portion having a diameter of about 5 to 8 phi.

Further, in the case of the screw (V), it can be considered similarly to the anchor material (A), but if the portion disposed on the organic heat-insulating board layer 13 (14) is left in a linear shape without installing screws, it is vertical The contact state for bearing load in the direction is more preferable. In addition, it is preferable that the shape of the head portion of the screw V is not only the area orthogonal to the axial direction, but also a flat plate head or pan head shape to increase the cross-sectional area in the axial direction.

In addition, in the case of using the organic heat-insulating board layer 13 (14) with a face material such as a nonwoven fabric attached to the surface, attaching the screw V while leaving the face material as much as possible, not only the head portion depression strength in the drawing direction but also It is preferable because the strength in the vertical direction is also improved.

3A and 3B, when the organic heat-insulating board layer 13 (14) has a two-layer structure, that is, the organic heat-insulating board layer 13 (14) is placed on one side of the inorganic board layer 15 In the case of overlapping use of two, it is preferable to use a pan head shape having a flat back shape of the head portion on the rear surface of the organic heat insulating board layer 13 (14) on the inorganic board layer 15 side. .

On the other hand, as shown in FIG. 3C, when the organic heat-insulating board layer 13 (14) has a one-layer structure, that is, the organic heat-insulating board layer 13 (14) is placed on one side of the inorganic board layer 15. In the case of using only the sheet, it is necessary to slightly sink the entire head portion so as not to come into contact with the backing member 12, but in that case, the screw V is more preferable if it is set as a flat plate head. In addition, in FIG. 3C, the thermally expandable sheet material 21 is filled between the small spherical surfaces of the inorganic board layer 15.

In addition, especially in the case of using only one organic heat insulating board layer 13 (14), in the case of construction by sinking the screw head, if the screw head and the backing material 12 are bonded with an adhesive, the vertical of the screw head The misalignment or rotation of the direction is less likely to occur, and the yield strength in the vertical direction is improved. In this case, it is preferable that the screw head is set to sink by about 1 to 5 mm, since the adhesive easily spreads evenly when bonding the back surface material 12 and the organic heat-insulating board layer 14 with an adhesive. . However, when the backing material 12 and the organic heat-insulating board layer 14 are bonded together, the organic heat-insulating board layer 14 is deformed due to the pressing pressure by pressing, so that the screw head is sunk in consideration of this amount. It is desirable to set the amount to be done.

In addition, when the screw head sinks excessively, before attaching the back surface material 12 to the organic heat-insulating board layer 14, an adhesive may be filled in advance in the portion where the screw head sinks. In addition, even when the adhesion between the rear member 12 and the screw head is peeled off, in order to act as shear resistance, it is preferable that the screw head be formed into a smooth curved surface or a slightly larger groove is formed. Further, even if the surface of the screw head is made a rougher surface than the rear member 12, the adhesive remains on the side of the screw head, and it is effective because it acts as shear resistance.

On the other hand, when the surface member 11 and the back member 12 are thin, the screw head, the surface member, and the back member are daringly used in order to prevent deformation from easily appearing in the surface member 11 and the back member 12 due to the fine behavior of the screw head. In some cases, they are designed so that they do not adhere.

In order not to excessively increase the depressed strength of the head portion in the drawing direction and to improve the proof strength in the vertical direction, it is important to increase the diameter of the screw head without excessively increasing it.

Taking these into account, it is preferable to use the screw of the pan head with a shaft diameter of 4 to 7 φ, a head diameter of 9 to 15 φ, and a head thickness of about 4 to 9 mm. It is preferable to use one having a diameter of 4 to 6 φ, a head portion diameter of 9 to 15 φ, and a flat countersunk head having an angle of about 30 to 60°. In addition, the anchor material (A) and the screw (V) are beaten from both the side of the front material 11 and the side of the back material 12, but it is preferable to strike apart at least 1.5 times the thickness of the inorganic board layer so that they do not interfere, It is more preferable to hit it apart more than 2 times. In addition, if the screw (V) is used, damage due to hitting, etc., to the inorganic board layer 15 at the time of pouring does not occur, so it is preferable to reduce the interval between hitting the anchor material (A) and the screw (V). Do.

Here, means for the partition wall composed of the partition panel 1 (refer to the partition wall 2 according to the present invention shown in Figs. 4A and 4B) to pass the fire resistance test according to heating for 1 hour and following 3 hours Explain about. When the partition wall 2 is heated from the surface material 11 side, the surface material 11 is greatly deformed at the initial stage of heating, and the organic heat insulating board layer 13 on the heating side is carbonized during the heating time of 1 hour, Disappeared. After that, it is necessary for the three layers of the inorganic board layer 15, the organic heat-insulating board layer 14 on the non-heating side, and the backing material 12 to prevent the penetration of flame or heat without breaking the positional relationship until the end.

First, the three layers are formed by using an upper anchor member 24b and a lower anchor member 25b on a frame such as floor slabs 22, 23, and the upper mounting member 24c and the lower mounting member 25c (hereinafter, upper mounting When the member 24c and the lower mounting member 25c are combined, it may be simply referred to as a "mounting material".) is fixed, and the partition panel 1 is made of the upper mounting member 24c and the lower mounting member 25c. It is constrained in this out-of-plane direction. The upper fixing member 24a and the lower fixing member 25a (hereinafter, the upper fixing member 24a and the lower fixing member 25a) are combined with the upper fixing member 24c and the lower fixing member 25c, and it is simply referred to as a ``fixing member''. It is fastened to the back plate 12 using each. Next, the organic heat-insulating board layer 14 on the non-heating side is fixed to the back material 12 by an organic adhesive. Finally, the inorganic board layer 15 is fixed to the organic heat-insulating board layer 14 using an organic adhesive and mechanical fixing means.

As the upper mounting member 24c and the lower mounting member 25c, stainless steel or hot-dip galvanized steel is used, and it is designed in consideration of the assumed seismic force or deformation due to heat in the event of a fire, and as the upper mounting member 24c, thickness It is 2 to 6 mm and has a cross section of 40 to 100 mm in the vertical direction and 30 to 60 mm in the horizontal direction, and as the lower mounting member 25c, it is 2 to 6 mm in thickness and 40 to 100 mm in the vertical direction and 30 to 60 in the horizontal direction. A cross section of about mm is often used. The length of the upper mounting material 24c and the lower mounting material 25c is designed according to the construction method, but the ones with a length of 1.8 to 5.4 m on one side and 0.1 to 0.9 m on the other side are used. If it is done, it is suitable because it can be applied to a long one first, and a short one can be pressed so as not to collapse.

The upper mounting member 24c and the lower mounting member 25c are provided with a through hole for anchor material construction and a through hole for fixing material construction. By forming a through hole for fixing material construction in advance in the upper mounting member 24c and the lower mounting member 25c, it becomes possible to use a tapping screw for a thin steel plate to fix the surface member 11 and the back surface member 12. These have a diameter of 4 to 5 φ, a length of 15 to 30 mm, a thread height of 0.4 to 1.0, and a screw pitch of about 0.5 to 1.0. Compared to their small size, they are relatively small in terms of shear force and pullout when constructed with thin steel plates. It is preferable because it is excellent in proof strength and ability to deform until fracture.

In order for the three layers to stand on their own in the event of a fire, the weight of the organic insulating board layer 14 and the inorganic board layer 15 fixed to the backing member 12 and the backing member 12 only with the upper fixing member 24a on the non-heating side Support the weight in the vertical direction. The wall material is usually sandwiched between both sides by the mounting material and does not collapse, but in the event of a fire, the organic heat-insulating board layer 13 on the heating side of the end surface of the wall material is lost and greatly deformed. Therefore, the shear force according to the weight of the organic insulating board layer 14 and the inorganic board layer 15 fixed to the back member 12 and the back member 12 through the back member 12 in the upper fixing member 24a on the non-heating side and , Since the pulling force due to the eccentricity generated by the deformation by heat is generated, it is necessary to sufficiently consider these and design.

Since the three layers are greatly curved out-of-plane at the end of the three-hour follow-up test, they must be designed in consideration of the influence of the bending. In addition, when displacement and rotation in the vertical direction occur in the upper fixing member 24a, in the structure of the present invention, the fixing member is disposed in the back surface member 12 and the organic heat insulating board layer 14.

The inorganic board layer 15 easily cracks even with a small local load, but is not affected by the displacement and rotation of the upper fixing member 24a, and does not impair the function as a fire stop material. On the other hand, since the organic heat-insulating board layer 14 is made of a soft material, defects and dropouts that inhibit fire resistance that easily transfer heat to the backing material 12 due to the influence of the displacement and rotation of the upper fixing member 24a, etc. There is no case for this to occur.

In order for the upper fixing member 24a to support the self-weight of the three layers, the hole of the upper mounting member 24c through which the upper fixing member 24a passes should not have a large gap in the vertical direction, and the round hole or long diameter is 10. It is preferable to use a long hole of about 20 mm. Further, the through hole of the lower fixing member 25a formed in the lower mounting member 25c may be a round hole, but in order to absorb the displacement occurring in the wall member due to its own weight in the vertical direction, the long diameter is 20 to 40 mm. It is desirable to do so.

As described above, in FIGS. 3A and 3B, two organic heat insulating board layers 13 and 14 are disposed on both surfaces of the inorganic board layer 15, respectively, and adjacent to the inorganic board layer 15 The organic heat insulating board layer 13 is mechanically fixed to the inorganic board layer 15. In this case, there is no problem because the head portions of the anchor material (A) and the screw (V) are buried in the adjacent organic heat insulating board layer 13.

On the other hand, as shown in FIG. 3C, one organic heat insulating board layer 13 is disposed on both sides of the inorganic board layer 15, respectively, and the organic heat insulating board layers 13 and 14 are disposed on the inorganic board layer 15. In the case of fixing, the head portions of the anchor member (A) and the screw (V) come into contact with the front member 11 and the back member 12 made of a metal material. Therefore, it is preferable to form the concave portion accommodating the head portion of the anchor member (A) and the screw (V) on the surface of the organic heat-insulating board layers 13 and 14 on the surface of the surface member 11 and the rear member 12 side.

However, if the shape of the head portion of the anchor material (A) or the screw (V) is relatively thin, and the shape is easily buried in the organic heat-insulating board layers 13 and 14 when hitting the back side of the head portion, the concave portion There is no need to preform it.

In addition, if the anchoring strength of the organic insulating boards 13 and 14 of the head portion of the anchor material (A) or the screw (V) is designed to be smaller than the fixing strength to the inorganic board layer (15), the anchor material or the screw (V) Even when a tensile force is applied, damage to the inorganic board 15 can be prevented, which is more preferable in terms of fire resistance.

(Partition wall)

Next, the partition wall according to the present invention will be described. Fig. 4A shows an overall view of a preferred example of a partition wall according to the present invention. Moreover, FIG. 4B has shown the vertical direction sectional view of the partition wall shown in FIG. 4A. The partition wall 2 shown in this figure is a vertical partition wall that spans between the floors of the building, that is, between the floor slabs 22 and 23 and is fixed at the upper and lower ends thereof. In addition to the floor slab, the partition wall 2 may be fixed to a refractory-coated steel frame beam disposed on a ceiling or floor. In addition, in the case of a use in which it is necessary to arrange an insulating material on the floor surface, the insulating material is stacked from the floor slab surface on both sides of the partition wall, and then concrete is poured onto the insulating material to complete the floor surface. As for the partition wall 2, the partition panel 1 according to the present invention described above is disposed adjacent to each other in the width direction of a plurality of sheets.

Fig. 5 is a cross-sectional view of a partition wall 2 according to the present invention in the width direction, Fig. 5A is an overall view, and Fig. 5B is an enlarged view of a joint portion between panels. It is preferable that the thermally expandable sheet material 21 is filled between the globules of the plurality of panels 1. The thermally expandable sheet material 21 is not loaded in the entire thickness of the panel 1, but as shown in Fig. 5B, while having strength during and after heating, of the remaining inorganic board layer 15 It is most efficient to load only parts. In addition, the thermally expandable sheet material 21 does not necessarily need to be loaded in the entire thickness of the inorganic board layer 15, and the gap between the assumed inorganic board layers 15 and the expansion rate of the thermally expandable sheet material 21, etc. It may be determined in consideration of, and the thickness is preferably about 1 to 3 mm, and the width is about 15 to 50 mm. In addition, a sealing material 28 is poured into the joints between the panels 1.

The lower part of the partition wall 2 is fixed to the floor slab 23 via a lower mounting member 25c by a lower fixing member 25a and a lower anchor member 25b. Although not shown, the upper part of the partition wall 2 is similarly fixed to the floor slab 22 via the upper mounting member 24c by the upper fixing member 24a and the upper anchor member 24b. In addition, the joint between the partition wall 2 and the floor slab 22 is filled with an upper joint material 26, and the joint between the partition wall 2 and the floor slab 23 has a lower joint member 27. It is charged.

The upper anchor member 24b and the lower anchor member 25b are selected to withstand an inertial force of about 1 G acting during an earthquake, which is a typical design load of a partition wall, and generally has a diameter of about M8 to 10, Arrange the necessary number of anchor materials for concrete with a buried length of about 30 to 70 mm according to the bearing strength.

As the thermally expandable sheet material 21 to be filled in the joints between the plurality of panels 1, when a plurality of the inorganic board layers 15 are arranged, the same as the thermally expandable sheet material used for the joints can be used.

In addition, the upper joint member 26 and the lower joint member 27 do not form a gap for penetrating flame or heat when displacement or rotation occurs in the wall member during a fire, and function as a fire stop member of the wall member. It is a material that does not cause impairing defects or dropouts, and reduces heat transmission in normal times. As the upper joint member 26 and the lower joint member 27, ceramic fibers, alkaline earth silicate blankets (bio-soluble fibers), or the like can be used.

6 shows an example of the joint structure between the panels 1. In the joint structure shown in Fig. 6A, the surface material 11 (the back material 12) is bent once along the side wall that partitions the concave portion 13a (14a) of the organic heat-insulating board layer 13 (14). One bent portion 11a, 12a is formed, and the sealing material 28 is filled between the adjacent first bent portions 11a.

Moreover, although the bottom surface of the sealing material 28 is bonded to the organic heat-insulating board layer 13 (14), if the resin layer to which the surface material is not affixed in the concave portion 13a (14a) is exposed, the sealing material Nothing impedes the free deformation of the ring.

In addition, in the joint structure shown in FIG. 6B, the surface material 11 (the back material 12) is 2 along the side wall and the bottom surface which divide the concave part 13a (14a) of the organic heat insulating board layer 13 (14). It is bent twice, and the first bent portions 11a and 12a and the second bent portions 11b and 12b are formed. By connecting the second bent portions 11b (12b) to each other, the invasion of fire heat from the joint portion of the partition panel 1 in the event of a fire is alleviated, and heating from adjacent surface materials 11a Fire resistance can be improved by avoiding direct sunlight.

The second bent portion (11b (12b)) need not be formed over the entire length of the panel (1), for example, riveted to the first bent portion (11a, 12a) at intervals of about 300 to 1500 mm It may be fixed by a method such as welding or welding. In addition, portions of the surface member 11 (back member 12) that are laminated to each other are connected with a screw (V) at intervals of about 300 to 1500 mm, and the adjacent first bent portions 11a are mutually interposed between the sealing member 28 ) Is charged.

Due to the connection, movement of the joint portion may be reduced and the sealing life may be increased. In addition, since the outermost part in the width direction is composed of the surface material 11 or the back material 12 made of a metal material, damage to the globules of the organic insulating board layers 13 and 14 and the inorganic board layer 15 as core materials can be prevented. I can. In addition, when installing as a partition wall, the access control of the front member 11 and the back member 12 made of a metal material becomes easy.

Further, a bond breaker 29 for preventing the sealing material 28 from adhering to the three sides is provided outside the surface of the second bent portion 11b (12b). In addition, it is also possible to use a foamed resin backup material instead of the bond breaker 29, but these materials often have a property of shrinking around 180 + ambient temperature, which is the specified value of the back surface temperature in the fire test. Care must be taken because there is a fear that the sealing ring on the opposite side may be detached from the bottom side and the fire resistance may be lowered.

Fig. 6C shows a preferred embodiment of the joint structure shown in Fig. 6B. In the partition wall shown in Fig. 6B, both of the second bent portions 11b and 12b of one of the adjacent partition panels (the left partition panel in Fig. 6B) are the organic heat-insulating board layers 13 and 14 It is placed on the side.

In contrast, in the joint structure shown in Fig. 6C, the second bent portion 11bi of the surface material 11 of 1a among the adjacent partition panels 1a, 1b is disposed on the side of the organic heat-insulating board layer 13, The second bent portion 11bo of the other adjacent partition panel 1b is disposed on the side of the screw V. In addition, the second bent portion 12bo of the rear member 12 of the partition panel 1a is disposed on the side of the screw V, and the second bent portion 12bi of the other partition panel 1b is It is arrange|positioned on the side of the organic heat insulating board layer 14.

By constituting in this way, there is an error in the interval between the second bent portions 11bi and 12bo of the adjacent partition panel 1a and the interval between the second bent portions 11bo and 12bi of the other partition panel 1b. Even if there is, it can be easily installed on site. That is, when constructing the next partition panel 1b following the partition panel 1a previously installed at a predetermined position, the second bent portions 11bi and 11bo and 12bo and 12bi of each partition panel are thickened. The second bent portions can be easily constructed without colliding with each other by pulling in the width direction so as to have a predetermined dimension in a state slightly shifted in the direction and then pushing in the thickness direction to a predetermined position.

In addition, in the joint structure shown in FIG. 6C, the position of the screw V is disposed close to the first bent portion 11a (12a) side, and is adjacent to the organic heat-insulating board layers 13 and 14. The length in the width direction of the second bent portion 11bi (12bi) is long. Thereby, the edge distance of the screw V twisted into the 2nd bent part 11bo, 11bi, 12bo, and 12bi of the screw V can be increased, and the connection strength between adjacent partition panels can be improved. . In addition, due to various factors, it becomes easy to secure the edge distance required for strength even when the joint width is widened than the design value at the construction site.

In addition, in the joint structure shown in FIG. 6C, the thermally expandable sheet material 21 is disposed close to one of the adjacent partition panels 1a and 1b (1b in FIG. 6C). Thereby, when disposing the thermally expandable sheet material 21 between adjacent partition panels 1a, 1b, the width of the inorganic board layer 15 of one partition panel is shortened to form a recess, Since it is sufficient to fill the formed concave portion with the thermally expandable sheet material 21, workability can be greatly improved. Further, as shown in Fig. 6C, a gap (eg, about 1 mm in the width direction) may be formed between the inorganic board layer 15 and the thermally expandable sheet material 21.

As described above, since the partition wall 2 according to the present invention is fixed to the frame at its upper and lower ends, when the surface material 11 (back panel 12) of the partition wall 2 is heated, the surface material 11 ) (The back material 12) expands, the surface material 11 (the back material 12) and the organic heat insulating board layer 13 (14) can be peeled off, and the board layers 13, 14, 15 are deformed The fire resistance of the partition wall 2 can be maintained without being damaged. Thus, the partition wall 2 according to the present invention has both high fire resistance and heat insulation properties.

(Room structure)

Subsequently, a room structure according to the present invention will be described. 7 shows an example of a room structure according to the present invention. In the room structure 3 shown in this figure, the interior of the building composed of the roof 31, the floor 32 and the outer wall 33 is partitioned by the partition wall 2 according to the present invention described above, and further By connecting the highly heat-insulating ceiling member 34a (35a) to the intermediate position of the partition wall 2, the partition wall 2, the ceiling member 34a (35a) and the wall member are connected to at least one of the partition walls 2 (34c (35c)) and a room (34 (35)) partitioned by a flooring (34b (35b)). In addition, the room 34 (35) is divided into a highly heat-insulating flooring material 34b (35b) and a wall material 34c (35c), and a partition wall 2 and a ceiling material 34a (35a). The room 34 (35) is, for example, a refrigerator.

In addition, the roof 31, the floor 32, and the outer wall 33 of the building are made of, for example, concrete or lightweight foamed concrete. Moreover, the upper part of the said partition wall 2 may not be the roof 31, but may be fixed to the floor of the upper floor, a fireproof-coated steel frame, or a beam made of reinforced concrete depending on the building structure. In addition, in FIG. 6, floor materials 34b and 35b are formed on the floor 32, but by arranging the heat insulator under the floor 32, the strength of the floor surface is improved, and it is suitable for running of a load-carrying vehicle or the like. .

As shown in FIG. 8, in the room structure 30 of a conventional refrigerated warehouse, a partition wall 20 such as lightweight foam concrete having fire resistance is used, and a room 36 (37) such as a refrigerator freezer, It was partitioned by a high heat insulation ceiling member 36a (37a), a floor member 36b (37b), and a wall member 36c (37c). However, since the air-conditioning temperature is different between the wall material 36c (37c) and the partition wall 20 serving as the fire protection section, condensation is easily generated on the surface of the insulation panel, and these spaces are narrow and difficult to clean. Therefore, there was a problem that the harm of mold and insects occurs easily.

In contrast, in the room structure 3 according to the present invention, the partition wall 2 having both high heat insulation and heat resistance constitutes a part of the wall of the room 34 (35). By constituting in this way, there is no gap between the wall material 34c (35c) and the partition wall 2, which was present in the conventional room structure 30. As a result, condensation is less likely to occur in the partition wall 2, and harm due to mold and insects can be suppressed.

In addition, as shown in FIG. 9A to an enlarged view of the connecting portion of the partition wall 2 and the heat insulating materials 34a and 34b shown in FIG. 7, in the partition wall 2, the inorganic board layer 15 having a relatively high thermal conductivity is The organic heat insulating board layers 13 and 14, which are arranged in the center of the partition wall 2 (the partition panel 1), and have relatively low thermal conductivity, are arranged outside. Thus, the amount of heat transferred to the surface layer portion of the panel penetrating inside and outside the room 34 (35) is reduced, and thermal bridges are less likely to occur. In contrast, in the case of using the partition wall in which the organic heat insulating board layers 13 and 14 and the inorganic board layer 15 are replaced as shown in Fig. 9B, the vicinity of the surface layer is made of a material that is easy to transfer heat, Thermal bridges larger than the structure of Fig. 9A occur.

Example

Hereinafter, examples of the present invention will be described, but the present invention is not limited to the examples.

(Invention Example 1)

A partition panel 1 according to the present invention was produced. First, two coated galvalume steel sheets (registered trademark) as the surface material 11 and the back material 12 (dimension: 3200 mm × 890 mm, 4 rounds 10 mm wide bend, thickness: 0.4 mm), organic insulation board Four phenolic foam plates as layers (13, 14) (Asahi Kasei Construction Materials Co., Ltd. Neoma foam (registered trademark), dimensions: 1820 mm × 900 mm, thickness 32.5 mm, density: 40 kg/㎥), inorganic board layer ( 15) Light-weight aerated concrete as three sheets (Asahi Kasei Construction Materials Co., Ltd. power board NEXT, dimensions: 1820 mm × 606 mm, thickness: 36 mm, density 350 kg/㎥) were prepared, respectively.

Next, a coated galvalume steel sheet (registered trademark), a phenolic foam sheet, a lightweight foamed concrete, a phenolic foam sheet, and a painted galvalume steel sheet (registered trademark) were laminated and bonded in this order using a urethane-based adhesive (KU570 manufactured by Konishi Corporation). The applied amount of the adhesive is 150 to 200 g/m2 between the coated galvalume steel sheet (registered trademark) and the phenolic foam sheet, and 200 to 300 g/m2 between the lightweight aerated concrete and the phenolic foam sheet, and a 1 t/m2 press Curing was carried out overnight in the added state. In this way, the panel for partitions (1) was obtained.

Four partition panels 1 obtained as described above were arranged adjacent to each other in the width direction, and the upper and lower portions of each panel 1 were placed with an upper mounting material (L-65 × 40 × t = 3.2 mm) and It was fixed to the ceiling and the floor by the lower mounting material (L-50 × 40 × t = 3.2 mm), respectively. In addition, a thermally expandable sheet material (Firesuit FST-A manufactured by CRK Corporation, thickness 2 mm × 30 mm in width) was mounted on the joint between the joints between the panels 1 and the lightweight aerated concrete in the panel 1. In this way, the partition wall 2 according to the present invention was spanned between the floors of the building.

<Fireproof test>

For Invention Example 1 prepared as described above, in accordance with the method set in the Building Standard Method, a test of the partition wall fire resistance for 1 hour was performed. Hereinafter, the behavior of the partition wall 2 according to Inventive Example 1 in the fire resistance test will be described.

First, as shown in Fig. 10(a), when the surface material 11 of the partition wall (partition panel 1) is heated with a burner, as shown in Fig. 10(b), immediately after the start of heating (5 Minutes), the surface material 11 began to expand significantly toward the heating side. At that time, in the panel 1, since the surface material 11 and the organic heat-insulating board layer 13 are bonded with an organic adhesive, the organic adhesive burns out within a few minutes after the start of heating (about 300 to 400°C). Then, the surface material 11 and the organic heat-insulating board layer 13 were peeled off, and the surface material 11 was deformed to the heating side.

When heating was continued, the organic heat-insulating board layer 13 was carbonized while being adhered to the inorganic board layer 15. At that time, since the surface material 11 swells toward the heating side, the organic heat insulating board layer 13 freely expands in the thickness direction of the panel 1 at the time of carbonization, and as a result, a thick heat insulating layer is formed, as a result, Heat entering the inorganic board layer 15 was effectively blocked. And almost all of the organic heat-insulating board layer 13 was carbonized as shown in FIG. 10(c) within the heating time of 60 minutes.

Heating was stopped when 60 minutes passed from the start of heating. Immediately after that, the oxygen concentration in the refractory furnace facing the panel 1 rapidly increased, and as shown in Fig. 10(d), the carbonized organic heat-insulating board layer 13 became salty again for a certain period of time. In the panel 1 according to the present invention, when the organic heat-insulating board layer 13 is carbonized, the surface material 11 swells, so that the surface of the organic heat-insulating board layer 13 is not completely sealed, and in a low oxygen state Carbonized. Therefore, the surface material 11 and the organic heat-insulating board 13 were not peeled off, and the amount of heat generated during re-salting and the salting time were smaller than when the organic heat-insulating board layer 13 was carbonized in an oxygen-free state.

Thereafter, as shown in FIG. 10(e), the carbonized organic heat-insulating board layer 13 gradually fell off the surface of the inorganic board layer 15. In the removed portion, the surface of the exposed inorganic board layer 15 is directly affected by heat, and dehydration proceeds, and as shown in Fig. 10(f), a crack (C) is formed on the surface of the inorganic board layer 15. Occurred.

And, as shown in FIG. 10(g), when the carbonized organic heat-insulating board layer 13 falls out of the inorganic board layer 15, the inorganic board layer 15 is increased due to shrinkage and temperature decrease accompanying dehydration. Crack (C) occurred. As the dropout portion increased, many cracks occurred in the inorganic board layer 15. Subsequently, when the occurrence of droppings and cracks was corrected, the temperature of the inorganic board layer 15 decreased due to the decrease in the temperature in the furnace, and contraction due to temperature changes began. However, even in this state, the inorganic board layer 15 did not collapse and the fire resistance performance of the partition wall 2 was ensured. In addition, in the panel 1 of the present invention example 1, since the reinforcing material was loaded inside, the crack was slightly diffused, but the dimensional change as a whole was small, and the joint between the panels could be prevented from greatly expanding. Accordingly, the cracks in the inorganic board layer 15, the joints between the inorganic boards 15a in one panel, and the joints between adjacent panels were not large. As a result, the inorganic board 15a is only partially carbonized, and also for the organic heat-insulating board layer 14 on the non-heating side, as shown in Fig. 10(h), the partial carbonization portion P is formed. , Overall fire resistance performance could be satisfied.

Fig. 11 is a diagram showing the relationship between the time in the fire resistance test and the temperature of the partition wall, Fig. 11A is a heating temperature (furnace temperature), Fig. 11B is a back surface temperature, and a measurement result by 15 thermocouples is shown. From Fig. 11A, the heating temperature (furnace temperature) rises rapidly from immediately after the start of heating, and rises to about 930°C in one hour after the start of heating, and when the heating is stopped, the temperature is rapidly decreased, from the stop of heating. It can be seen that after 3 hours, it is reduced to about 180°C.

In contrast, from Fig. 11B, the back surface temperature gradually increases after the start of heating, and does not reach 100°C even after 1 hour elapses after the start of heating. However, after completion of the heating, the temperature rises for a certain period of time and rises to about 120° C. After that, the temperature gradually decreases, and it can be seen that the temperature decreases to about 70° C. after 3 hours from stopping the heating. Thus, during the fire resistance test, the back surface temperature was kept below 180°C + ambient temperature (25°C), and the average temperature was less than 140°C + ambient temperature (25°C).

Industrial availability

Advantageous Effects of Invention According to the present invention, it is possible to provide a partition panel having both high fire resistance and heat resistance, and a partition wall and a room structure using the same in a long length.

1, 1a, 1b: partition panel
2, 20: partition wall
3, 30: room structure
11: surface material
11a, 12a: first bend
11b, 12b, 11bi, 11bo, 12bi, 12bo: second bend
12: back side material
13, 14: organic insulation board layer
13a, 14a: recess
13b, 14b: organic insulation board
13c, 14c: cotton
13d, 14d: resin foam
15: inorganic board layer
15a: weapon board
16, 17: adhesive layer
21: thermally expandable sheet material
22, 23: floor slab
24a: upper fixing material
24b: upper anchor material
24c: upper mounting material
25a: lower fixing material
25b: lower anchor material
25c: lower mounting material
26: upper joint member
27: lower joint material
28: sealing material
29: bond breaker
31: roof
32: floor
33: outer wall
34, 35, 36, 37: room
34a, 35a, 36a, 37a: ceiling material
34b, 35b, 36b, 37b: flooring
34c, 35c, 36c, 37c: wall material
A: anchor material
C: crack
h: Long hole for anchor material
P: partial carbonization
V: bis

Claims (14)

A surface material and a back material made of a metal material,
A plurality of organic heat-insulating board layers disposed between the surface material and the back material, and an inorganic board layer sandwiched between the plurality of organic heat-insulating board layers,
A partition, characterized in that the plurality of organic insulating board layers adjacent to the surface material and the surface material, and the plurality of organic insulating board layers adjacent to the back material and the back material are each adhered to each other by an organic adhesive. panel. The method of claim 1,
The inorganic board layer is made of lightweight aerated concrete, a partition panel. The method according to claim 1 or 2,
A partition panel having a non-combustible reinforcing material in the inorganic board layer. The method according to any one of claims 1 to 3,
A partition panel wherein one of the plurality of organic heat insulating board layers adjacent to the inorganic board layer and the inorganic board layer are mechanically fixed. The method according to any one of claims 1 to 4,
The inorganic board layer is composed of a plurality of inorganic boards adjacent in the in-plane direction, and the small spherical surfaces of the plurality of inorganic boards are adhered to each other by a fireproof adhesive. The method according to any one of claims 1 to 4,
The inorganic board layer is composed of a plurality of inorganic boards adjacent in the in-plane direction, and a thermally expandable sheet material is loaded between the small spherical surfaces of the plurality of inorganic boards. The method according to any one of claims 1 to 6,
The inorganic board layer is composed of a plurality of inorganic boards adjacent in the in-plane direction, and the plurality of inorganic boards are fixed to each other against movement in an out-of-plane direction, an in-plane direction, or an out-of-plane direction and an in-plane direction by a connecting bracket. , Partition panels. The method according to any one of claims 1 to 7,
The number of the plurality of organic insulating board layers is two, the partition panel. The method according to any one of claims 1 to 8,
A partition panel, wherein the resin constituting each of the organic heat-insulating board layers is made of a thermosetting resin. It is a vertical partition wall that spans between the floors of a building and is fixed at the top and bottom of the building.
A partition wall, wherein the partition panels according to any one of claims 1 to 9 are arranged adjacent to each other in a plurality of width directions. The method of claim 10,
A partition wall in which a thermally expandable sheet material is filled in a joint between the plurality of partition panels. The method of claim 10 or 11,
A partition wall in which an end portion in the width direction of the front member and an end portion in the width direction of the rear member overlap each other and are connected to each other adjacent to each other. The method according to any one of claims 10 to 12,
The upper and lower ends of the partition panel are constrained in the out-of-plane direction of the partition panel by an installation material fixed to the frame of the building, and the surface material and the fixing member are prevented from penetrating the inorganic board layer through the hole of the installation member. A partition wall that is fixed by fastening to the backing material. The interior of a building consisting of a roof, a floor, and an outer wall is partitioned by the partition wall according to any one of claims 10 to 13, and a high thermal insulation ceiling material is connected to an intermediate position of the partition wall, so that at least the partition wall A room structure, characterized in that it has a partition wall, a ceiling material, a wall material, and a room partitioned by a floor material in one of the rooms, wherein the room is divided into a highly insulating flooring material and a wall material, and the partition wall and the ceiling material.

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