JPH0624199Y2 - Fireproof insulation panel - Google Patents

Description

[Detailed Description of the Invention] Technical Field of the Invention The present invention has high heat insulation performance and fire resistance, and
The present invention relates to a fireproof heat insulating panel excellent in mechanical strength (in particular, bending rigidity and torsional rigidity).

TECHNICAL BACKGROUND OF THE INVENTION Conventionally, there is a method of constructing a building by fixing a wall forming panel to a steel frame serving as a pillar of a building structure with bolts or the like.

As the wall forming panel used at this time, as shown in FIG. 10, an expanded polystyrene plate is internally provided with a heat insulating core material a.
Mortar layer on the outer surface of the surface material b
And a back plate c such as a plaster board is attached to the inner surface side.

Then, such a three-layer wall forming panel is fixed to a structural material such as a steel frame serving as a pillar of a building structure with bolts or the like to construct an outer wall.

However, in the wall structure of a building using such a wall-forming panel, although the heat insulation performance is high and the weight is light, the expanded polystyrene constituting the heat insulation core material a therein is flammable. However, it has the disadvantage of poor fire resistance.

Especially, in the Japanese Building Standards Law, the construction order No. 1
Article 07 Clause 1 states, "As specified in the performance required for parts with a fireproof structure, 1 hour for parts with a risk of fire spread, 30 minutes for parts other than parts with a risk of fire spread. In general, when the wall member does not have a fire resistance of 1 hour or more, the utility value is low.

That is, it is difficult for the panel shown in FIG. 10 using expanded polystyrene as a heat insulating core material to satisfy the fire resistance of 1 hour as a wall, and this wall forming panel is actually used as a non-bearing wall such as a curtain wall. It has the disadvantage of being difficult to use.

Further, conventionally, in addition to this problem of fire resistance, in the panel shown in FIG. 10, not only the heat-insulating core material a but also the surface material b and the back plate c do not have sufficient mechanical strength. Therefore, there has been a problem that the mechanical strength is poor as a whole, and even if it can be used as a non-bearing wall, it cannot be used as a bearing wall.

DISCLOSURE OF THE INVENTION The present invention has been made in view of such conventional problems, and has high heat insulation performance and a fire resistance time of 1 hour or more, and yet mechanical strength (particularly bending rigidity). ,
The object is to provide a fire-resistant heat-insulating panel which is extremely excellent in torsional rigidity), is extremely lightweight, and can be manufactured even for large ones.

Outline of the Invention In order to achieve these objects, the fire-resistant heat-insulating panel according to the present invention is a semi-incombustible material made of a foam containing vinyl chloride resin or chlorinated vinyl chloride resin containing an inorganic filler as a main component. A heat insulating core material, a surface material arranged on the front surface side of the heat insulating core material, a back surface material arranged on the back surface side of the heat insulating core material, and a back surface side of the back surface material of the back surface material. A reinforcing material disposed near both ends, and a plate material disposed on the back surface side of the back surface material, both ends of which are respectively connected to the reinforcing material, and formed to have morphological resistance. I am trying.

According to the fire-resistant heat-insulating panel according to the present invention, since the heat-insulating core material is composed of the semi-incombustible heat-insulating material,
Although it has sufficient heat insulation, it also has excellent fire resistance, and the fire resistance time of the entire panel is 1 hour or more, and it is possible to construct a fire wall that conforms to the Building Standards Law.

Moreover, in the present invention, a plate material (for example, a keystone plate) formed so as to have morphological resistance is connected to the reinforcing material provided on the back surface side of the back material near both ends thereof. Therefore, the plate material plays a role of a reinforcing structural member in cooperation with the reinforcing material, and as a result, the mechanical strength of the entire heat insulating panel, particularly the bending rigidity and the torsional rigidity are remarkably improved as compared with the conventional case. Therefore, such a fireproof heat insulating panel can be sufficiently used not only as a non-bearing wall but also as a bearing wall. For example, as shown in Examples described later, according to the calculation based on the ordinary steel structure design standard of the Architectural Institute of Japan, the fire-resistant insulation panel according to the present invention has a bending strength three times or more of the design standard. There is. Therefore, in other words, even if the thickness of the reinforcing material is made thin, the fire-resistant heat insulating panel can have the same mechanical strength as the conventional one.

In the present specification, the term "plate material formed to have morphological resistance" refers to any plate material that is formed into a shape other than a flat shape and, as a result, has bending rigidity (or torsion stiffness) equal to or higher than that of a flat plate. For example, a keystone plate (that is, a deck plate), other embossed plates, arc-shaped plates, or the like may be used.

Furthermore, since relatively heavy materials such as concrete are not used, even if the mechanical strength of the heat insulation panel is increased,
There is no increase in the weight of the heat insulation panel.

Furthermore, since the mechanical strength is increased without increasing the weight as described above, it is easy to manufacture a large-sized panel.

Therefore, the present invention has a high heat insulation performance, a fire resistance time of 1 hour or more, and is extremely excellent in mechanical strength (in particular, bending rigidity and torsion stiffness), and is extremely lightweight and large in size. It is possible to provide a fireproof insulation panel that can be manufactured to

DETAILED DESCRIPTION OF THE INVENTION Hereinafter, a fireproof heat insulating panel according to an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view including a partial cutaway cross section of a fireproof heat insulating panel according to an embodiment of the present invention, FIG. 2 is a front view including a partial cross section of the heat insulating panel shown in FIG. 1, and FIG. III-I
FIG. 4 is a sectional view taken along line II, and FIG. 4 is a sectional view taken along line IV-IV in FIG.

The refractory insulation panel 1 shown in FIG.
And a surface material 3 arranged on the front surface side including the side end of the heat insulating core material 2, and a back surface material 4 arranged on the back surface side of the heat insulating core material 2.

The heat insulating core material 2 is composed of a semi-incombustible heat insulating material. In the present invention, a foam containing a vinyl chloride resin or a chlorinated vinyl chloride resin containing an inorganic filler as a main component is used as the semi-incombustible heat insulating material. Such a heat insulating material has, for example, a compressive strength of 2.5 kg / cm ² or more, a bending strength of 4.5 kg / cm ² or more, excellent mechanical strength, and thermal conductivity. 0.04 kcal / m · hr · ° C or less,
It also has excellent heat insulation, a water absorption rate of 0.1 g / 100 cm ² or less, excellent water resistance, and a moisture permeability coefficient of 0.03 g / m ² · hr ・
It has a physical property that is less than mmHg and is also excellent in moisture resistance.

Here, it is conceivable to use a wood wool cement board or a phenol foam board, which is less flammable than an expanded polystyrene board, as a material forming the semi-incombustible heat insulating core material 2. However, the wood wool cement board has a workability and a light weight. And the phenol foam plate is not preferable from the viewpoint of strength and corrosiveness of iron or the like due to acidity.

In addition, conventionally known fibrous non-combustible heat insulating materials such as glass wool and rock wool have strength, water absorption,
Not preferable from the viewpoint of moisture absorption.

From these things, in the present invention, as the material constituting this semi-incombustible heat insulating core material 2, a vinyl chloride resin containing an inorganic filler or a foam containing chlorinated vinyl chloride resin as a main component is used. ing.

And, the vinyl chloride resin (hereinafter referred to as PVC) used for this semi-incombustible heat insulating material is polyvinyl chloride alone or a vinyl chloride copolymer containing 50% by weight or more of vinyl chloride or vinyl chloride and vinyl chloride. -Vinyl acetate copolymer, thermoplastic polyurethane, acrylonitrile-butadiene copolymer, chlorinated polyethylene, methacrylic acid ester-acrylic acid ester copolymer, ethylene-vinyl acetate copolymer, vinyl chloride-vinylidene chloride copolymer, etc. An example of the mixture is a mixture of polyvinyl chloride and at least one resin having compatibility with polyvinyl chloride, and polyvinyl chloride in the mixture is 50% by weight or more.

On the other hand, the chlorinated vinyl chloride resin (hereinafter referred to as CPVC) means not only the resin obtained by chlorinating the PVC but also the CP
Blending resin compatible with VC, for example, vinyl chloride resin, vinyl chloride-vinyl acetate copolymer, thermoplastic polyurethane, acrylonitrile-butadiene copolymer, chlorinated polyethylene, methacrylic acid ester-acrylic acid ester copolymer, It is a concept including a mixture with at least one kind of ethylene-vinyl acetate copolymer, vinyl chloride-vinylidene chloride copolymer and the like, in which the amount of the blending resin in the mixture is 50% by weight or less. is there.

As the chlorinated vinyl chloride resin, a copolymer containing 50% by weight or more of a vinyl chloride resin can be used in addition to PVC as described above.

The chlorination method may be any conventionally known method, for example, a photochlorination method under irradiation of ultraviolet rays is preferably used.

Moreover, examples of the inorganic filler include inorganic fibrous substances and inorganic granular substances.

Among them, the inorganic fibrous material has a good volume retention effect when exposed to a high temperature.

This is presumed to have excellent shape stability because the inorganic fibrous substances are entangled with each other in the foam to form a network.

The average fiber length of the inorganic fibrous material is 10 μm.
Asbestos, glass fiber, rock wool, glass fiber, etc. of about 50 mm are suitable, and as the inorganic particles, talc, calcium carbonate, aluminum hydroxide, hydroxide having an average particle size of about 0.01 to 0.03 μm are used. Magnesium, zinc oxide, mica, bentonite, clay, silica and the like are suitable.

Further, a hollow body such as shirasu balloon can be used as the inorganic particulate material.

This inorganic filler may be used alone or in combination of two or more kinds.

The content of the inorganic filler is determined in consideration of the amount to be contained in the foam, the expansion ratio, the cost, etc., but is usually 5 to 1000 parts by weight with respect to 100 parts by weight of PVC and / or CPVC.

The PVC foam or CPVC foam used as the material forming the semi-incombustible heat insulating material layer 2 of the present invention is, for example, Japanese Patent Application Laid-Open No. 61-264232 and Japanese Patent Application No. 61-184685, which are applications of the same applicant. Press foaming method disclosed in Japanese Patent Application No. 61-289586 and Japanese Patent Application No. 61-289586, extrusion foaming method disclosed in Japanese Patent Application Laid-Open No. 57-165430, Japanese Patent Application No. 62-28676. The bead foaming method in which the solvent disclosed in 1) is present in the beads to greatly improve various properties, and a specific solvent is used to contain a large amount of rock wool etc., which is not particularly hygienic, and high foaming is possible. Manufactured by the method disclosed in Japanese Patent Application No. 63-83581 and the like.

The expansion ratio of these foams containing an inorganic filler is 10
It is good to set it to 100 times, preferably 30 to 90 times, and more preferably 30 to 50 times, but it is appropriately selected depending on the thickness and shape of the surface material 3 and the back surface material 4. Further, its thickness is also appropriately selected according to these conditions.

The foam as a material forming such a quasi-noncombustible heat insulating core material 2 has a thermal conductivity, a compressive strength, a water absorption rate, and a workability in comparison with the above-mentioned wood wool cement board, glass wool, or the like. It has excellent performance when constructing the outer wall and ensuring the required performance as the outer wall.

Next, as the surface material 3, even if a flame crawls on the surface, the surface material 3 is provided on the surface side of the heat insulating core material 2 so as not to cause harmful deformation, damage, dropout, and other changes. Since it is necessary to possess it, the present invention mainly employs cement or mortar reinforced with an inorganic fiber reinforcing material.

That is, an inorganic fiber reinforcing material 5 (see FIG. 7) such as glass fiber, steel fiber or carbon fiber is mixed in cement or mortar.

As a manufacturing method thereof, a method of forming on the surface of the heat insulating core material 2 regardless of the size or shape of the heat insulating core material 2 by a wet process, that is, a work such as mixing and laminating these materials in a factory or a construction site is applied. Possible material, for example, glass fiber reinforced cement mortar (hereinafter referred to as GRC) further mixed with glass cloth, or steel fiber or carbon fiber mixed in place of this glass cloth with a thickness of 6 mm or more , More preferably 8 mm
Adoption of the above is desirable.

It is also possible to use, as the surface material 3, a resin mortar in which vinyl acetate is mixed as a synthetic resin and a glass cloth is embedded to have a thickness of 6 mm or more, more preferably 8 mm or more.

Further, it is possible to use a laminate of two different materials as the surface material 3. At this time, for example, a resin mortar is applied to the surface of the heat insulating core material 2 as the first layer to a thickness of about 1 to 2 mm. Then, GRC mixed with glass cloth is applied to the surface by about 5 to 8 mm.

Next, as the backing material 4, a quasi-incombustible material or a material having incombustibility equal to or higher than that, for example, gypsum board, asbestos slate board, asbestos pearlite or the like is used.

Like the front surface material 3, the back surface material 4 needs to have a performance that does not cause harmful deformation, damage, dropout, or other changes even when a flame comes in contact with the back surface. Also, it is preferable to have water resistance and performance as a construction base of the heat insulating core material 2.

The term "quasi-incombustible material" as used in this specification refers to a material defined in the Building Standard Act Construction Order, Article 1, paragraph 5, and fire resistance is defined in the Building Standard Act, Article 2, paragraph 7. It means the performance of fireproof structure.

Next, such a fire-resistant heat-insulating panel 1 needs to have mechanical strength that can withstand wind pressure during a typhoon and vibrations during an earthquake. for that reason,
In this embodiment, the fireproof heat insulating panel 1 has the following reinforcing structural members.

First, as shown in FIGS. 1 to 4, reinforcing members 11, 11 made of L-shaped steel are arranged at the upper and lower ends of the heat insulating panel 1 so as to be positioned on the back surface side of the back material 4. On the other hand, the reinforcing members 12 and 1 made of L-shaped steel are also located at both ends of the heat insulating panel 1 so as to be positioned on the back surface side of the back material 4.
2 are provided. These reinforcing members 11 and 12 are
The corner portions of the heat insulating panel 1 are connected to each other by welding to form a rectangular frame. The reinforcing members 12, 12 at both ends of the heat insulating panel 1 are provided with hooks 13 for suspending the heat insulating panel 1.

Further, in the present embodiment, each end portion has the reinforcing member 11,
A plate member 14 connected to 12 is provided. The plate member 14 is a plate member formed to have a morphological resistance, and may be any plate member that is formed into a shape other than a flat shape and, as a result, has bending rigidity (or torsional rigidity) equal to or higher than that of a flat plate. For example, as shown in the drawing, a keystone plate (that is, a deck plate), in which unevenness is alternately repeated at fine intervals and the intervals are different, is most preferable, and in addition, an embossed plate, a plate formed in an arc shape, etc. May be At this time, it is preferable that the plate material 14 is a steel plate that has been subjected to anticorrosion treatment or a stainless steel plate.

At the upper and lower ends of the heat insulating panel 1, as shown in an enlarged view in FIG. 5, a holding plate 15 made of L-shaped steel is used as a reinforcing material 11.
It is attached to the reinforcing member 11 by a bolt 16 that penetrates the plate member 14 (keystone plate). As a result, the plate material 14 (keystone plate) is held by the pressing plate 15.
Is pressed against and attached to the reinforcing member 11. The bolt 16 is arranged at the position indicated by reference numeral 16 in FIG.

In addition, the holding plate 15 is a plate material 14 formed by spot welding.
It is connected to (keystone plate). The position of this spot welding is the position indicated by reference numeral 31 in FIG.

Further, the horizontal member 18 is bridged between the reinforcing members 12 and 12, whereby the plate member 14 (keystone plate) is provided.
Is prevented from bending. The attachment of the horizontal member 18 and the plate member 14 (keystone plate) is similar to that of the holding plate 15.

Further, the plate material 14 (keystone plate) and the reinforcing material 1
The bolts 2 and 12 are attached to each other by bolts arranged at a position 19 in FIG.

Next, as shown in an enlarged manner in FIG. 6, the back surface material 4 and the plate material 1
All 4 (keystone plates) are attached with bolts 20. The bolt 20 is arranged at a position indicated by reference numeral 20 in FIG.

Further, as shown in an enlarged view in FIG. 7, a recess 21 is provided in the heat insulating core material 2, and the tapping screw 2 is provided from this recess 21.
2 is extended, the heat insulating core material 2, the back surface material 4, and the plate material 14
It is screwed on (keystone plate). Thereby, the plate material 14 (keystone plate) is attached to the heat insulating panel 1. The tapping screw 22 is arranged at a position indicated by a symbol x in FIG.

In this way, the plate material 14 (keystone plate) is attached to the heat insulating panel 1 at all points on its surface.

As described above, in this embodiment, the reinforcing members 11 and 12 are
Since a plate material 14 (keystone plate) formed so as to have a morphological resistance is connected to the
The (keystone plate) plays a role of a reinforcing structural member in cooperation with the reinforcing members 11 and 12, and as a result, the mechanical strength of the heat insulating panel as a whole, especially, the bending rigidity and the torsional rigidity are significantly improved as compared with the conventional one. It Therefore, such a fireproof heat insulating panel can be sufficiently used not only as a non-bearing wall but also as a bearing wall. For example, as will be described later, the fireproof heat insulating panel according to the present invention has a bending strength three times or more as high as the design standard. Therefore, in other words, even if the thickness of the reinforcing members 11 and 12 is made thinner than the conventional one, it is possible to provide the fire resistant heat insulating panel with the same mechanical strength as the conventional one. Furthermore, since relatively heavy materials such as concrete are not used, even if the mechanical strength of the heat insulating panel is increased, the weight of the heat insulating panel is not increased. As a result, it is easy to produce large panels.

It should be noted that the present invention is not limited to the above-mentioned embodiments and can be variously modified. In particular, the plate member 14 is not limited to a keystone plate, and may be any plate member that is formed into a shape other than a flat shape and, as a result, has bending rigidity (or torsional rigidity) equal to or higher than that of a flat plate.

Effects of the Invention As described above, according to the fireproof heat insulating panel of the present invention, since the heat insulating core material is made of the quasi non-combustible heat insulating material, the heat insulating property is sufficient. However, the fire resistance of the panel as a whole is more than 1 hour, and it is possible to construct a fire resistant wall that complies with the Building Standards Law.

Moreover, in the present invention, since the plate member formed so as to have a morphological resistance is connected to the reinforcing member, this plate member cooperates with the reinforcing member to function as a reinforcing structural member, and as a result, the heat insulating panel. The mechanical strength as a whole, in particular, the bending rigidity and the torsional rigidity are significantly improved as compared with the conventional one. Therefore, such a fireproof heat insulating panel can be sufficiently used not only as a non-bearing wall but also as a bearing wall.

Furthermore, since relatively heavy materials such as concrete are not used, even if the mechanical strength of the heat insulation panel is increased,
There is no increase in the weight of the heat insulation panel, and as a result, it is easy to produce a large panel.

Therefore, the present invention has a high heat insulation performance, a fire resistance time of 1 hour or more, and is extremely excellent in mechanical strength (in particular, bending rigidity and torsion stiffness), and is extremely lightweight and large in size. It is possible to provide a fireproof insulation panel that can be manufactured to

Hereinafter, the present invention will be described with reference to examples, but the present invention is not limited to these examples.

Example A test was conducted on the structural strength of a curtain wall as an example of the fire resistant single heat panel according to the present invention. Currently, there is no original structural regulation for the structural members in the curtain wall, and the policy is to comply with the calculation standards of the academic society (in the case of this experiment, steel structure calculation standards and the same comment). Therefore, the test body of this experiment and its verification shall be a design cross section that conforms to the conventional academic formula, and the experiment shall be performed with the test body of that cross section. Experiments and verifications were attempted in two ways: an external load test and an in-plane B load test with the earthquake as a reference.

A Out-of-plane load (corresponding to typhoon) test Typhoon load p = c ・ q at a height of about 30m above ground level (corresponding to the 9th floor) is c = 1.2, q = 60√H, H =
30, ∴p ≈ 394 kg / m ² , and in the case of the size of this test body (A = 1.2 × 2.4 = 2.88 m ² ), Σp =
p · A (= 394 × 2.88) ≒ 1135kg / sheet.

The test results are shown in FIG.

(1) Proof strength Although the conditions were such that the stiffener was arranged and the support board was set to 16φ assuming the actual work, the yield strength was 4 t
It could hold up to, and was very stable as a curtain wall.

In the calculation based on the steel structure design standard of the ordinary architectural society,
The fire resistant heat insulating panel according to this example had a bending strength three times or more as high as the design standard.

Since the test was about to break, the test was terminated at this 4t.

Further, this proof stress 4t corresponds to a height of about 372 m above the ground surface.

(2) Displacement The center displacement (out-of-plane) δ under the above loading conditions is 6 to 6.5.
mm.

Ie Next to Smaller and very stable.

Further, the displacement amount σ at the maximum proof stress of 4 t is 20 to 23.5 mm, and this value is 1/120 to 1/102 of the span, and the deformation is extremely small.

In addition, the depression of the heat insulating core is Σp = 1.5t (p = 521kg
/ m ² ) Seen from the vicinity, and the deformation reduces the yield strength by about 1
It was seen to be relatively high.

However, the proof stress as a curtain wall is sufficiently obtained before the deformation of the heat insulating core material.

In conclusion, the out-of-plane load test demonstrated that it can be used well as a book wall.

B-plane load (corresponding to an earthquake) test The mission of the curtain wall during an earthquake is to ensure the displacement performance and toughness equivalent to the frame, and this time, the verification experiment was conducted.

The test results are shown in FIG.

(1) Allowable limit displacement The allowable limit displacement of the curtain wall during an earthquake is Is. On the other hand, all experimental results have this value (δ =
Up to 20 mm), the displacement of elastic behavior was almost sufficient, and it was of sufficiently high quality as a curtain wall.

(2) Deformation performance The maximum displacement is δ = 34 mm for SW-2.1, SW-2.2
Became 50mm. The former 34 mm was due to shear deformation of the stiffener mounting bolt, and the curtain wall and bolt were still alive. By the way 34mm is 50mm is It turned out that the deformation performance was good.

(3) Finishing Material In all of the test pieces, defects such as peeling and damage of the finishing material up to the maximum displacement were not observed as the outer wall material.

From the above results, it is concluded that the curtain wall according to the present invention has sufficient structural characteristics as an outer wall in the in-plane load test as well as in the out-of-plane test. Furthermore, the curtain wall according to the present invention, which is designed based on the current steel structural standards, may be evaluated as an outer wall having extremely excellent characteristics and its structure in terms of structural mechanics.

[Brief description of drawings]

FIG. 1 is a perspective view including a partial cutaway cross section of a fireproof heat insulating panel according to an embodiment of the present invention, FIG. 2 is a front view including a partial cross section of the heat insulating panel shown in FIG. 1, and FIG. III-I
A sectional view taken along line II, FIG. 4 is a sectional view taken along line IV-IV in FIG. 2, FIG. 5 is an enlarged sectional view taken along line VV in FIG. 2, and FIG. 6 is shown in FIG. FIG. 7 is an enlarged sectional view taken along line VI-VI, FIG. 7 is an enlarged sectional view taken along line VII-VII in FIG. 2, FIG. 8 is a graph showing experimental results of an out-of-plane load test, and FIG. 9 is an in-plane load. FIG. 10 is a graph showing the experimental results of the test, and is a cross-sectional view of a conventional heat insulating panel. DESCRIPTION OF SYMBOLS 1 ... Fireproof heat insulation panel, 2 ... Heat insulation core material 3 ... Surface material, 4 ... Back surface material 11, 12 ... Reinforcing material, 14 ... Plate material

Claims (3)

[Scope of utility model registration request] 1. A semi-incombustible heat-insulating core material comprising a foam containing a vinyl chloride resin or a chlorinated vinyl chloride resin containing an inorganic filler as a main component, and a heat-insulating core material disposed on the surface side. Of the back surface material, a back surface material provided on the back surface side of the heat insulating core material, a reinforcement material provided on the back surface side of the back surface material near both ends of the back surface material, and A fire-resistant heat-insulating panel, comprising: a plate material, which is disposed on the back surface side, both ends of which are respectively connected to the reinforcing material and which is molded so as to have morphological resistance. 2. The fire resistant heat insulating panel according to claim 1, wherein the plate material is a keystone plate or a deck plate. 3. The fire resistant heat insulating panel according to claim 1, wherein the backing material is formed of a quasi-incombustible material or a material having incombustibility equal to or higher than that of the quasi-incombustible material. .