JPH10159204A - Structural insulation panel and its connection structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain excellent insulation and fire resistance by successively stacking structural fire resistant face material, insulation fire resistant face material, an insulator and structural face material and integrally forming an insulation panel. SOLUTION: The structural fire resistant face material 2 of three-layer structure composed of an intermediate layer containing inorganic lightweight aggregate of perlite and the like and two inorganic fiber layers containing an inorganic fiber positioned at both the sides of the intermediate layer is formed. An insulation fire resistant face material 3 composed of calcium silicate heat insulator and the like is laminated on the structural fire resistant face material 2, and the thickness (a) of the insulation fire resistant face material 3 is made 20-50% of the thickness (b) of the whole. A first insulator 4a and a second insulator 4b composed of polystyrene resin and the like and structural face material 5 are successively laminated on the insulation fire resistant face material 3 to form an insulation panel 1. Execution work can be facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structural heat insulating panel, and more particularly, to a structural heat insulating panel excellent in heat insulation and fire resistance, and a joint structure of the structural heat insulating panel.

[0002]

2. Description of the Related Art The roof structure of a traditional Japanese house has a structure in which a roof is made of a structural material consisting of a purlin and rafters, and a tile or the like is placed on the roof. Specifically, beams are arranged in a span of about 1820 mm (between 1) to 3640 mm (between 2), and a bundle is built on the top of the beam, and the purlin at a pitch of 910 mm (half); The roof is covered with a roof board, and a roof is constructed. On the other hand, in recent years, by attaching a structural heat insulating panel in which a heat insulating material is sandwiched between structural laminate materials, the structural heat insulating panel is attached to the structural material from outside of the structural material through a connector such as a bolt. A construction method for constructing a roof structure having excellent heat insulating properties without using rafters or the like is gradually being implemented, particularly in an area where winter cold is severe.

[0003]

However, this construction method is an excellent method from the viewpoint of securing heat insulation and simplifying the process, but has a problem from the viewpoint of fire safety. That is, the panel construction method itself does not contribute to fire prevention at all. Also, in the case of conventional structural insulation panels, when it is intended to improve fire resistance,
This required a complicated work process in which fireproofing materials had to be separately installed after the roof was installed. In the event of a fire from inside the building, heavy roof tiles, asbestos slate, etc. are loaded on the conventional roof structure, and even if the roof structure consists of a purlin and rafters, the roof using structural panels with heat insulation performance There was a risk that the roof would fall off at once in the event of a fire, even with a structure. Accordingly, the present invention provides a structural heat insulating panel which is excellent in heat insulation and fire resistance, and can easily implement a roof structure excellent in heat insulation and fire resistance, and a joint structure of the structural heat insulating panel. Aim.

[0004]

According to the first aspect of the present invention, a structural refractory face material, a heat insulating refractory face material, a heat insulating material and a structural face material are sequentially laminated and integrally formed. The above object has been achieved by providing a structural heat insulating panel characterized by the following. According to a second aspect of the present invention, in the first aspect of the present invention, the thickness of the heat-insulating refractory surface material is 20% to 50% of the entire thickness of the structural heat-insulating panel.
It is intended to provide a structural heat insulating panel. The invention according to claim 3 is the laminate according to claim 1 or 2, wherein the structural refractory surface material has a three-layer structure in which an intermediate layer made of an inorganic lightweight aggregate is interposed between inorganic fiber layers. It is intended to provide a structural heat insulating panel.

According to a fourth aspect of the present invention, there is provided a joint structure in which the structural heat insulating panels are joined to each other, wherein one of the adjacent structural heat insulating panels includes the structural fireproof face material and the structural face material. It is formed so as to protrude from an end face formed by the heat insulating refractory surface material and the heat insulating material, and the other structural heat insulating panel has a thickness of the entire structural heat insulating panel of the one structural heat insulating panel. The upper end face of the structural fire-resistant face material of the one structural heat insulating panel is formed so as to be substantially equal to the distance between the upper end face of the structural fire-resistant face material and the lower end face of the structural face material. What is provided is a joint structure for a structural heat insulating panel, characterized in that an end of the other structural heat insulating panel is fitted and fixed to a recess formed between lower end surfaces of the structural face materials. It is.

According to a fifth aspect of the present invention, there is provided a joint structure in which the structural heat insulating panels are joined to each other via a joint block, wherein the structural heat insulating panels are composed of the structural fireproof surface material and the structural surface. The joint block comprises a structural fire-resistant surface material, a heat-insulating fire-resistant surface material, a heat-insulating material, and a concave portion formed by projecting a material from the heat-insulating fire-resistant surface material and an end face formed by the heat-insulating material. It is a laminate in which face materials are sequentially laminated, and is characterized in that one end and the other end of the joint block are fitted into and joined to the concave portions of the structural heat insulating panel adjacent to each other. It is intended to provide a joint structure of a structural heat insulating panel. According to a sixth aspect of the present invention, in the invention of the fifth aspect, the structural heat insulating panels adjacent to each other are joined by bringing end surfaces of the structural fireproof face material and the structural face material into contact with each other. It is intended to provide a joint structure of a structural heat insulating panel.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the structural heat insulating panel of the present invention will be described below with reference to the drawings. 1 to 3 show a structural heat insulating panel according to the present embodiment. FIG. 1 is a sectional perspective view, FIG. 2 is a perspective view showing a construction state, and FIG. is there. As shown in FIG. 1, the structural heat insulating panel 1 of the present embodiment includes a structural fire-resistant face material 2, a heat-insulated fire-resistant face material 3, and a first heat-insulating material 4.
a, the second heat insulating material 4b and the structural face material 5 are sequentially laminated and integrally formed. The thickness a of the heat-insulating refractory surface material 2 is 20 times the thickness b of the entire structural heat-insulating panel 1.
% To 50%, and the structural refractory surface material 2 is a laminate having a three-layer structure in which an intermediate layer made of an inorganic lightweight aggregate is interposed between inorganic fiber layers. Hereinafter, the structural heat insulating panel 1 of the present embodiment will be described in more detail.

The structural refractory face material 2 is a laminated plate having fire resistance. More specifically, the structural refractory face material 2 includes an intermediate layer containing an inorganic lightweight aggregate and inorganic fibers located on both sides of the intermediate layer. It is a laminate having a three-layer structure composed of two inorganic fiber layers.
As the inorganic lightweight aggregate, a pearlite-based lightweight aggregate is preferably used. When the perlite-based lightweight aggregate is adopted, a heat insulating panel which is particularly lightweight and has excellent fire resistance can be obtained. The intermediate layer contains a binder and a size material in addition to the inorganic lightweight aggregate. A starch-based binder is suitably used as the binder, and a wax-based size material is suitably used as the size material.

As the inorganic fibers, special mineral inorganic fibers such as rock wool granular cotton are preferable. When the special mineral inorganic fiber is used, the tensile strength can be increased. The inorganic fiber layer also contains, in addition to the inorganic fibers, aluminum hydroxide, a starch binder, a wax-based sizing material, and the like. In the inorganic fiber layer constituting the inorganic fiber layer, the structure of the inorganic fiber and other components may be the same or different on both sides of the intermediate layer. The structural refractory face material 2 in the present embodiment is formed integrally by providing the inorganic fiber layers on both sides of the intermediate layer and hot pressing them. Since the structural heat insulating panel 1 of this embodiment uses the structural refractory surface material 2 using an inorganic material as described above, an insect repellent or the like is not required, and chemical pollution can be prevented beforehand. In addition, the structural heat insulating panel 1 of the present embodiment includes:
Since the structural refractory surface material 2 having the above configuration is used, it is lightweight, high-strength and long, and is excellent in workability.

The physical properties of the structural refractory surface material according to the present invention are as follows: specific gravity is 0.27 or less, and flexural strength is 250 kg /
cm ² or more, dimensional stability 0.12 or more, weight 12.
It is preferably less than 7 kg / m ² . The use of a structural fire-resistant surface material that satisfies these conditions ensures the necessary strength of the structural heat-insulating panel, facilitates construction, facilitates construction, and particularly reduces the risk of roof falling off during a fire. Structural heat insulation panels that can be obtained. As a structural refractory surface material satisfying such conditions,
The trade name “Dailight” manufactured by Daiken Kogyo Co., Ltd. can be mentioned.

As the above-mentioned heat insulating and refractory surface material 3, a calcium silicate heat insulating material can be suitably used. When a high fire-resistant material such as the calcium silicate heat insulating material is used as the heat-insulating fire-resistant face material 3, the resulting structural heat-insulating panel 1 can be obtained.
Is particularly excellent in heat insulation and fire resistance. In the present invention, the thickness a of the heat-insulating and fire-resistant face material 2 is preferably 20% to 50%, more preferably 40% to 50% of the thickness b of the entire structural heat-insulating panel 1. If the ratio of the thickness a of the heat-insulating refractory surface material 2 to the thickness b of the entire structural heat-insulating panel 1 is less than 20%, the structural stability of the structural heat-insulating panel 1 at the time of fire tends to be insufficient, and is 50%.
If it exceeds, it is not preferable from the viewpoints that the heat insulation tends to be insufficient and the cost is low.

As the first heat insulating material 4a and the second heat insulating material 4b, foamed polystyrene resin is used. In addition, the structural thermal insulation panel 1 of the present embodiment includes:
Two types of heat insulating materials 4 of a first heat insulating material 4a and a second heat insulating material 4b
However, in the present invention, a single type of heat insulating material may be used to form a structural heat insulating panel. FIG. 4 shows an example in which the structural heat insulating panel 1 is configured by using a single heat insulating material 4.

As the heat insulating material in the present invention, one heat insulating material may be used, or a plurality of heat insulating materials of a single type or different types may be laminated. The foam-molded heat insulating material may be composed of two or more layers by changing the expansion ratio in accordance with the required strength. Further, it can be molded by extruded polystyrene. In addition, it is also possible to adopt a configuration in which a heat-resistant material such as a calcium silicate plate or the like having improved heat resistance is mixed and bonded to each of two or more layers as a heat insulating material. In the present embodiment,
A laminate of two types of foam molded products having different expansion ratios is used as the heat insulating material 4. Further, as a material for forming the heat insulating material in the present invention, a resin such as a urethane resin or a polystyrene resin, a ceramic, or the like can be used, and hard polyurethane, low-expanded polystyrene, and the like are particularly preferable.

As the structural surface material 5, a single-layer laminated material or a wafer board can be used, and among the wafer boards, OSB is particularly preferable. OS as the structural surface material
When B is used, a low-cost, high-strength, large, long panel suitable for surface finishing is obtained.

The structural refractory face material 2, the heat insulating refractory face material 3,
The first heat insulating material 4a, the second heat insulating material 4b, and the structural face material 5 are:
The members are sequentially laminated and adhered to each other via an appropriate adhesive or adhered by welding to be integrally formed. There is no particular limitation on the shape and width of the structural heat insulating panel, the thickness of the entire panel, and the like. The roof may be designed using a predetermined shape or the like and used as it is. A panel having a shape may be processed into a desired shape and used.

FIG. 2 shows one construction mode of the roof using the structural heat insulating panel 1. As shown in FIG. 2, the structural heat insulating panel 1 is provided on a structural material such as a panel receiving purlin 6, a purlin (not shown), a corner block 7, etc. designed to have a maximum interval of 3640 mm at a maximum, for example. The face material 2 is attached so as to be on the lower side (inside of the room), thereby forming a roof. Thus, the structural thermal insulation panel 1 of the present invention
According to this, roof construction is extremely easy. In addition, since the structural fire-resistant surface material of the structural heat-insulating panel faces the inside of the building and has the heat-insulated fire-resistant surface material inside, the fire resistance is secured without providing a separate fire-resistant material, and the finishing is further performed. Finishing can be performed without the need for a base material. In addition, as shown in FIG. 3, in the roof structure of a wooden house, even at the eaves portion formed by the lower end portion of the structural heat insulating panel, finishing of the eaves lower surface eliminates additional construction work such as a fireproof structure using refractory. Can be.

Next, one embodiment of the joint structure of the structural heat insulating panel of the present invention will be described with reference to FIGS. FIG. 5 is a cross-sectional view showing one embodiment of the joining structure of the structural heat insulating panel of the present invention, and FIG. 6 is a sectional perspective view for explaining the joining structure.

As shown in FIG. 5, the joint structure of the structural heat insulating panel of this embodiment is a joint structure in which structural heat insulating panels 1a and 1b adjacent to each other are bonded to each other. The panel 1a is formed by projecting the structural refractory face material 2 and the structural face material 5 from an end face 10 formed by the heat insulating refractory face material 3 and the heat insulating materials 4a and 4b. Structural insulation panel 1b
The thickness b of the entire structural heat insulating panel is substantially equal to the distance a between the upper end face 3a of the structural fireproof face material of the one structural heat insulating panel 1a and the lower end face 5a of the structural face material 5. One of the structural heat insulating panels 1a
The end 12 of the other structural heat insulating panel 1b is fitted into and fixed to the recess 11 formed between the upper end surface 3a of the structural refractory face material and the lower end surface 5a of the structural face material. Become.

The joint structure will be described in more detail. In the structural heat insulating panel 1a, the end portion 20 of the structural refractory face material 2 and the end portion 50 of the structural face material 5 are provided.
As shown in FIGS. 5 and 6, an end face 10 formed by the heat-insulating refractory surface material 3 and the heat-insulating materials 4a and 4b is provided.
It is formed so as to protrude more. As shown in FIG. 6, the other structural heat insulating panel 1b has the same laminated structure as the one structural heat insulating panel 1a, but the thickness b of the entire panel is the same as that of the one structural heat insulating panel 1a. It is formed thinner than the thickness of the structural heat insulating panel 1a. Specifically, the upper end face 3a of the structural refractory face material and the structural face material 5
Is formed so as to be substantially equal to the distance a with respect to the lower end surface 5a.

The structural heat insulating panel 1a and the structural heat insulating panel 1b having the above-described structure are provided with an adhesive or a screw (not shown) in a state where the end 12 of the structural heat insulating panel 1b is fitted into the recessed portion 11. 8 and fixed. The structural heat insulating panel 1b in the joint structure according to the present embodiment includes:
One half of the structural heat insulating panel 1a is inserted into the concave portion 11 and the other half is connected to the structural heat insulating panel 1a.
It is inserted into the concave portion of the structural heat insulating panel 1c having the same configuration as that of FIG. Therefore, the structural heat insulating panel 1b functions as a joint block. Claim 4
In the invention described in the above, only a smaller number of ends of the structural heat insulating panel 1b may be inserted into the recessed portions 11, and the structural heat insulating panel 1a of the structural heat insulating panel 1b may be inserted. The end on the side that is not inserted into the concave portion 11 may or may not be inserted into the concave portion of another structural heat insulating panel. In the joint structure of the structural heat insulating panel of the present embodiment, the structural heat insulating panel 1b has the structural fire-resistant face material at the lower end and the heat-resistant fire-resistant face material similarly to the structural heat insulating panel 1a. Thermal insulation panel 1a
Also, sufficient fire resistance is secured at the joint of the structural heat insulating panel 1b. Therefore, according to the joint structure of the structural heat insulating panels, a roof structure having excellent fire resistance performance can be easily constructed.

Next, an embodiment of the joining structure of the structural heat insulating panel according to claim 5 or 6 will be described. In the joint structure, the structural heat insulating panel 1b in the above embodiment is grasped as a joint block,
The structural heat insulating panel 1a and the structural heat insulating panel 1c are grasped as adjacent structural heat insulating panels. As shown in FIGS. 5 and 6, the joint structure of this embodiment is a joint structure in which adjacent structural heat insulating panels 1a and 1c are connected to each other via a joint block 1b. , 1c respectively replace the structural refractory face material 2 and the structural face material 5 with the heat insulating refractory face material 3 and the heat insulating material 4.
a, the joint block 1 is provided with a concave portion 11 formed to protrude from an end face 10 formed by the
b is a laminated body in which the structural refractory face material 2, the heat insulating refractory face material 3, the heat insulating material 4, and the structural face material 5 are sequentially laminated, and is formed in the concave portion 11 of the structural heat insulating panel adjacent to each other. And a joint structure in which one end 60 and the other end 61 of the joint block 1b are fitted and joined.

As shown in FIGS. 5 and 6, the ends 20 of the structural refractory face material 2 and the ends 50 of the structural face material 5 in the structural heat insulating panels 1a and 1c are connected to each other. It is formed so as to protrude from the end face 10 formed by the refractory face material 3 and the heat insulating materials 4a and 4b.
Therefore, in the structural heat insulating panels 1a and 1c, the concave portion 11 is formed between the upper end surface 2a of the structural refractory face material 2 and the lower end surface 5a of the structural face material. As shown in FIG. 6, the joint block 1b includes a structural heat insulating panel 1
It has the same laminated structure as a and 1c. That is, it is a laminate in which the structural refractory face material 2, the heat insulating refractory face material 3, the heat insulating material 4, and the structural face material 5 are sequentially laminated. However, the thickness b is formed to be thinner than the thickness of the structural heat insulating panels 1a and 1c, and is substantially equal to the distance a between the upper end surface 2a of the structural refractory surface material and the lower end surface 5a of the structural surface material 5. They are formed to be equal. Then, one end 60 of the joint block 6 is fitted into the recess 11 of the structural heat insulating panel 1a, and the other end 61 of the joint block 1b is fitted into the recess 11 of the structural heat insulating panel 1c. The structural heat insulating panel 1a and the structural heat insulating panel 1c are joined by fixing with the agent or the screw 8.

The joint block 1b in the joint structure of the present embodiment is formed by the concave portion 1 of the structural heat insulating panel 1a.
One half is inserted into one, and the other half is inserted into the concave portion of the structural heat insulating panel c. That is, the structural heat insulating panels 1a and 1c are joined by bringing the end faces of the structural refractory face material 2 and the structural face material 5 into contact with each other.

The joint structure of the structural heat insulating panel of the present embodiment is such that the joint block 1b also includes the structural heat insulating panels 1a,
Similarly to 1c, the lower end is provided with the structural fire-resistant face material 2 and the heat-insulated fire-resistant face material 3, so that the fire resistance is secured also at the joint. Therefore, according to the joint structure of the structural heat insulating panels, a roof structure having excellent fire resistance performance can be easily constructed.

[0025]

Next, an embodiment of the structural heat insulating panel of the present invention will be described. In addition, the fire resistance performance of this example and comparative examples for comparison was evaluated. <Example>"Dailite" (trade name, thickness 10 mm) manufactured by Daiken Kogyo Co., Ltd. as a structural fire-resistant surface material, silica board (thickness 25 mm) as a heat-insulating fire-resistant surface material, and expanded polystyrene (thickness) as a heat-insulating material OSB (thickness: 12 mm) was used as a structural face material, and these were sequentially laminated to form a structural heat insulating panel. <Comparative Example> Comparative Example 1 A structural heat insulating panel was constructed in exactly the same manner as in the above example, except that the above-mentioned silica board was not used and the thickness of the above-mentioned polystyrene foam was 100 mm. Comparative Example 2 A hard polyurethane having a thickness of 50 mm was used as a heat insulating material, and this was used as an OSB having a thickness of 22.5 mm (lower side).
And an OSB (upper side) having a thickness of 11.5 mm to form a structural panel.

The above examples and comparative examples are described in JIS.
The fire resistance time was measured according to A1304. as a result,
With respect to the examples, the fire resistance time was 30 minutes or more, and it was confirmed that the fire resistance was excellent (standard ordinance fire resistance). on the other hand,
In Comparative Example 1, the fire resistance time was 15 minutes or more (sub-decree ordinance) and the fire resistance was not sufficient.
The fire resistance time was 3 to 5 minutes and there was almost no fire resistance. In addition, the heat transmission coefficient (kcal / m ² h ° C.) was determined for the above Examples and Comparative Examples in order to evaluate the heat insulation performance.
The heat transmission coefficient was calculated from the sum of the measured thermal conductivity of each material in accordance with JIS A1412. As a result, it was 0.252 in the example, and it was confirmed that the heat insulation performance was excellent. It was 0.230 for Comparative Example 1 and 0.429 for Comparative Example 2.

[0027]

According to the structural heat insulating panel of the present invention, it is possible to provide a structural heat insulating panel which is easy to implement and is excellent in heat insulation and fire resistance. Further, it is possible to provide a joint structure of a structural heat insulating panel that can easily implement a roof structure having excellent heat insulating properties and fire resistance.

[Brief description of the drawings]

FIG. 1 is a sectional perspective view showing one embodiment of a structural heat insulating panel of the present invention.

FIG. 2 is a perspective view showing one embodiment of a structural heat insulating panel of the present invention.

FIG. 3 is a cross-sectional view showing a lower end portion in one embodiment of the structural heat insulating panel of the present invention.

FIG. 4 is a sectional perspective view showing another embodiment of the structural heat insulating panel of the present invention.

FIG. 5 is a cross-sectional view showing one embodiment of the joint structure of the structural heat insulating panel of the present invention.

FIG. 6 is a cross-sectional perspective view for explaining a joint structure of the structural heat insulating panel shown in FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Structural heat insulating panel 1a One structural heat insulating panel 1b The other structural heat insulating panel (joint block) 2 Structural fireproof material 3 Heat insulating fireproof material 4 Heat insulating material 4a First heat insulating material 4b Second heat insulating material 5 For structure Face material

Claims (6)

[Claims] 1. A structural heat insulating panel, wherein a structural refractory face material, a heat insulating refractory face material, a heat insulating material and a structural face material are sequentially laminated and integrally formed. 2. The thickness of the heat insulating and refractory surface material is 20% to 50% of the total thickness of the structural heat insulating panel.
A structural thermal insulation panel according to claim 1. 3. The structural heat insulating panel according to claim 1, wherein the structural refractory surface material is a laminate having a three-layer structure in which an intermediate layer made of an inorganic lightweight aggregate is interposed between inorganic fiber layers. 4. A joint structure in which the structural heat insulating panels are joined to each other, wherein one of the adjacent structural heat insulating panels is:
The structural refractory face material and the structural face material are formed so as to protrude from an end face formed by the heat insulating refractory face material and the heat insulating material, and the other structural heat insulating panel is the structural heat insulating panel. The thickness of the one structural heat insulating panel is substantially equal to the distance between the upper end face of the structural fireproof face material and the lower end face of the structural face material. An end of the other structural heat insulating panel is fitted and fixed to a recess formed between an upper end surface of the structural fireproof surface material of the panel and a lower end surface of the structural face material. The joint structure of the structural thermal insulation panel. 5. A joint structure in which the structural heat insulating panels are joined to each other via a joint block, wherein the structural heat insulating panel includes the structural fire-resistant face material and the structural heat-resistant face material. And a concave portion formed by projecting from an end face formed by the heat insulating material. The joint block is formed by sequentially stacking a structural fire-resistant surface material, a heat-insulating fire-resistant surface material, a heat insulating material, and a structural surface material. The structural heat insulating panel is characterized in that one end and the other end of the joint block are inserted into and joined to the concave portions of the structural heat insulating panel adjacent to each other. Joint structure. 6. The structural heat insulating panel according to claim 5, wherein the structural heat insulating panels adjacent to each other are joined by bringing end faces of the structural fireproof face material and the structural face material into contact with each other. Joint structure.