JPH073992A - Fire resisting panel connecting structure - Google Patents

Abstract

PURPOSE:To provide the connecting structure of a fire resisting panel lightweight with mechanical strength and usable as interior wall material, exterior wall material, roofing material, ceiling material, floor material, backing material, partition material, a fireproof door, a fire resisting safe, or the like in a building or a construction in need of fire resisting performance. CONSTITUTION:Fire resisting panel connecting structure is formed of a long- sized batten B of approximately T-shape cross section, and a long-sized fire resisting panel A. In this fire resisting panel A, plastic foam 30 with inorganic material such as aluminum hydroxide, ammonium polyphosphate, graphite, calcium silicate or calcium carbonate mixed in phenol foam resin is integrally formed between surface material 1 and back face material 22, and an inorganic board 31 is integrally formed at the end part. The batten B is fixed at the constant pitch of the working width of the fire resisting panel A, and the fire resisting panel A is fixed between the vertical pieces 43 of the batten B by male-female connection and the fixation of a fixture beta.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an interior wall material, an exterior wall material, a roof material, a ceiling material, a floor material for buildings and structures which require fire resistance.
The present invention relates to a connecting structure of long fireproof panels that can be used as partitioning materials, fire doors, etc., and are lightweight and have mechanical strength.

[0002]

2. Description of the Related Art Generally, as a panel for fireproof structure,
JP-A-4-237756, JP-A-5-791
No. 48 (FIG. 12) is available.

[0003]

However, under high heat, the refractory panel having the structure described above is deformed in different directions by being pulled to the heating side due to the difference in heat conduction between the surface material and the back surface material, and the connection is caused by this deformation. A gap is created in the part, and heat and flame leak from this part to the other side, and JIS
-There was a defect that the test for 1 hour of the fire resistant structure of A-1304 could not be passed. Further, in, a gap γ is formed between the panels a ₁ and a ₂ by the head of the fixture β, and the joint b
The rainwater blown up further propagates to the side of the frame α due to the large gap γ, and there is a drawback that the frame α is corroded.
Further, since the fixing tool β is formed in the vicinity of the joint b, rainwater and the like directly reach the head of the fixing tool β and the fixing holes drilled in the panel a ₁ by the fixing tool β. There were drawbacks such as rusting of the tool β and infiltration of rainwater into the body α through the fixing holes. To install this panel a, 1
Each piece had to be constructed while adjusting the joint width, which required skill. Further, this kind of panel a is made by integrally forming a synthetic resin foam between the front and back materials made of metal, and the synthetic resin foam as the core material is flammable, so that JIS-A-1301, JIS -Although it manages to pass the fire protection structure test of A-1302, there is no certainty,
None of them passed the JIS-A-1304 fireproof structure test.

Further, a fire-resistant panel in which a phenol foam is simply sandwiched between a front surface material and a back surface material is weak in strength because it uses a synthetic resin foam as a core material, and is inferior in bending strength and wind pressure resistance, and at the time of construction. The installation pitch on the frame of the was also short, and there was a drawback that the workability was poor. Also, mix the resol type phenolic foam stock solution with a curing agent,
When discharged and reactively foamed to form a core material, the condensation water during the reaction is held in the phenol foam at a level of several tens of percent of the weight, and is kept outside during the curing period of the product or after the panel construction. Due to changes in temperature, etc., water vaporizes and there is no escape, so it remains between the surface material of the refractory panel and the core material, and the surface of the refractory panel swells or warps, which adversely affects the refractory panel over time. There was a drawback. Furthermore, the adhesion strength between the surface material, the back surface material and the core material is weak, and there is a drawback that the surface material, the back surface material and the core material, in particular, end portions are separated by a small impact.

[0005]

In order to eliminate such drawbacks, the present invention forms an inorganic board in the male and female connecting portions, and further forms a substantially inverted T-shaped cross section between the back joints of the fireproof panels. By fixing the sheet-like sheet to the frame with a sheet-like sheet-like sheet, and greatly improving fire resistance, earthquake resistance, wind pressure strength, and engaging force, JIS-A-1304 fire-resistant structure can be tested for 1 hour. It proposes a fire-resistant panel that has passed the test and has significantly improved workability due to the inclined surface formed on the upper protrusion.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a fireproof panel connecting structure according to the present invention will be described in detail below with reference to the drawings. Figure 1
2 is a partially cutaway perspective view showing a typical example of the above-mentioned fireproof panel connection structure. A is a fireproof panel, and as shown in FIG. 2, a core member 29 is provided between the substantially horizontal surface member 1 and the back member 22. It is a sandwich structure that is integrally interposed, and has a configuration in which a male connecting portion 32 and a female connecting portion 36 are provided on both side edges in the longitudinal direction thereof. In addition, B is a mat board.

That is, the surface material 1 and the back surface material 22 are thin metal plates such as iron, aluminum, copper, stainless steel, titanium, aluminum / zinc alloy plated steel plate, enamel steel plate, clad steel plate, laminated steel plate (vinyl chloride steel plate, etc.), sandwich steel plate. (Vibration-damping steel plates, etc.), etc. (including, of course, colored metal plates coated in various colors) formed into various shapes by roll molding, press molding, extrusion molding, etc.
Alternatively, as the inorganic material or the back material 22, asbestos paper, kraft paper, asphalt felt, metal foil (A
1, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, aluminum hydroxide paper, glass fiber non-woven fabric, etc., or a laminate of two or more kinds,
Alternatively, it is made of a kind of sheet that is waterproofed or flame-retarded.

The shape of the surface material 1 is, for example, as shown in FIG.
As shown in FIG. 3, the horizontally long decorative surface portion 3 is a horizontal surface 4
And side edges 5 and 6 with both longitudinal edges of the decorative surface 4 bent inward, and a joint bottom surface 7 in which the lower ends of the side edges 5 extend outward, and at one end of the surface material 1 is a joint bottom surface. The upper surface 8 of which the tip of 7 further projects outward, the inclined surfaces 9 and 10 of which the tip of the upper surface 8 projects in a substantially triangular shape, the fixed groove 11 having a concave cross section formed on the upper surface, and the lower end of the inclined surface 10. A fixed convex strip 13 composed of an inwardly projecting lower surface 12 and a guide piece 14 in which the tip of the lower surface 12 is hung downward are formed.

Further, at the other end of the surface material 1, there are provided a lower edge 15 in which the lower end of the side edge 6 extends inward, and contact inclined surfaces 16 and 17 in which the tip of the lower edge 15 is inclined and bent downward. A fitting groove 19 is formed inwardly in a substantially U-shaped cross section from the lower surface 18 of the abutting inclined surface 17 projecting outward, and a tip of the lower surface 18 is bent inward in a U-shape. The fitting insertion ridge 20 and the guide piece 21 having a substantially L-shaped cross section which is the lower edge of the fitting insertion ridge 20 are formed.

Further, the two protrusions 11a formed on the bottom surface of the fixing groove 11 are formed so that when the fireproof panel A is fixed to the frame α, the setting position of the fixing tool β does not shift to the left and right. .

As shown in FIG. 3B, the backing material 22 has a horizontally long bottom surface 23 facing the decorative surface portion 3 and a bottom surface 23.
An inwardly bent U-shaped contact piece 24, an inner piece 25 in which the tip of the outer piece 24 is inwardly bent, and a guide piece 26 in which the tip of the inner piece 25 protrudes outward are formed at one end of At the other end, a guide piece 27 protruding inward and a tongue piece 28 in which the tip of the guide piece 27 is bent like a hook are formed.

Further, the guide pieces 14, 21, 26 and 27 are the same as the front surface material 1 and the back surface material 22 shown in FIGS.
The purpose is to prevent the stacking position from being displaced when the layers are laminated as shown in (1) to improve the dimensional accuracy of the fireproof panel A.

The core material 29 is a plastic foam 30,
The inorganic board 31 is arranged at both ends, and the plastic foam 30 mainly includes a heat insulating material, a fire resistant material, an adhesive,
It functions as a reinforcing material, a cushioning material, a sound absorbing material, a bulking material, a weight reducing material, and the like.

As the plastic foam 30, a resol type phenol foam is mixed with a foaming agent, aluminum hydroxide (Al (OH) ₃ ), ammonium polyphosphate, graphite, a curing agent, an inorganic material such as calcium silicate or calcium carbonate. Then, it is foamed and cured to form a finished density of about 50 to 300 Kg / m ³ .

Resol type phenolic foam (hereinafter,
Phenolic foam) is mainly produced by a continuous foaming molding method, and has the properties of noncombustibility, low smoke generation, and low toxicity compared to other synthetic resin foams (plastic foams). Is. Further, a metal siding material formed by sandwiching this phenol foam on a metal plate is JIS-A-1301 as a single body.
(Fire protection test method for wooden parts of buildings), JIS-A-1
It has a fireproof performance that passes the fireproof structure test of 302 (fireproof test method of non-combustible structure part of building).

The foaming agent is a phenol foam stock solution of 10 parts.
When the amount is 0 part by weight, 2 to 50 parts by weight is mixed with the undiluted solution of the phenol foam, and examples thereof include methylene chloride and carbonate (powder).

Aluminum hydroxide is mixed in an amount of 50 to 300 parts by weight with respect to 100 parts by weight of the undiluted solution of phenol foam, and is useful as a flame retardant, a refractory material, or a heat resistant material. Is. For example, the composition thereof has a moisture content of 0 to 30%, a particle size of 10 to 100 μm, and a purity of 90% or more.

Ammonium polyphosphate is used as a reaction adjusting material and a flame retardant material, when 1 to 25 parts by weight of the phenol foam stock solution is mixed with the phenol foam stock solution. The particle size is 30-100 μ.

The graphite is mixed in an amount of 2 to 30 parts by weight based on 100 parts by weight of the phenol foam stock solution. The effect is that the phenol foam is carbonized at the time of fire to form voids, and the voids are closed by graphite expanded by heating to prevent deterioration of fire resistance performance due to thinning.

The curing agent is a phenol foam stock solution of 10 parts.
When the amount is 0 part by weight, 10 to 50 parts by weight is mixed with the stock solution of the phenol foam, which is an organic phosphoric acid type or a mixture of phosphoric acid type and PSA type.

An inorganic material such as calcium silicate or calcium carbonate is mixed to improve the shape retention and fire resistance of the plastic foam 30.

The inorganic board 31 is shown in FIG.
It is as shown in (b) and is used for strengthening the fire resistance of the connecting portion γ described later, for example, calcium silicate plate, calcium carbonate plate, gypsum board, perlite cement plate, rock wool plate, slate plate. , ALC board, PC
Plate, other inorganic lightweight body, inorganic lightweight foam, or one or more of these composite boards, or ultra-high-density resin (high-density phenol foam, etc.), male connection part 32 of fire-resistant panel A, female connection It is provided integrally with the portion 36.

The male connecting portion 32 is a side end portion formed by the fixed convex strip 13, the guide piece 14, the contact piece 24, and the inner piece 25 and integrally formed by the core material 29. One side edge of the decorative surface portion 3 is formed. Is further lower than the decorative surface portion 3, that is, the cover portion 37 of the female connecting portion 36 does not protrude from the decorative surface portion 3,
The step portion 33 is formed so as to be able to be housed substantially flush with each other, the upper projection 34 for strengthening the guide and the engaging force, and the fitting insertion ridge 20 and the fitting insertion ridge 35 to be fitted. .

The female connecting portion 36 includes a fitting groove 19 and a fitting insertion ridge 2.
0, the cover portion 3 that is a side end portion that is formed by the guide piece 27 and that is integrally formed by the core material 29 and that covers the step portion 33.
7, an insertion groove 38 having a U-shaped cross section, a fitting insertion groove 35, and a main projection 39 to be fitted and inserted.

Reference numeral 40 denotes an inorganic packing material, which is made of, for example, rock wool felt, ceramic wool, or the like, which prevents a gap from being formed between the connecting portions γ during the fireproof structural test and blocks the infiltration of flames. It is useful as a refractory material and airtight material.

Reference numeral 41 is a waterproof packing material, which is generally commercially available, such as polyvinyl chloride type, chloroprene type, chlorosulfonated polyethylene type, ethylene propylene type, and asphalt impregnated polyurethane type. It is useful as a function of materials, airtight materials, etc.

Further, the inclined surfaces 9 and 10 and the contact inclined surfaces 16 and 17 are the side edges 6 which are the lower ends when the upper fireproof panel A is dropped into the lower fireproof panel A for construction as shown in FIG. Even if it hits the fixed ridge 13, it is formed so that the construction can be performed easily, and is for greatly improving the construction workability.

The mat board B is shown in FIGS. 6 and 7 (a) to (g).
As shown in FIG. 2, a metal plate material is formed by roll molding, extrusion molding or the like into a long shape from a horizontal flat fixing piece 42 and a vertical piece 43 projecting upward from a substantially central portion of the fixing piece 42. As shown in FIG. 1, the fixing tool β is attached to the body α.
It is fixed by. In addition to fixing the floor board B as shown in FIG. 1, it is also fixed to the frame α at the same pitch and serves as an allocation base for the construction of the fireproof panel A. It is coated to enhance the waterproofness, airtightness, prevention, fire resistance (prevention of entry of flame in case of fire), wind pressure resistance, etc. of the back joint. Of course, the fixing piece 42 may be formed by only one side.

Next, a construction example will be briefly described. It is now assumed that the fireproof panel A as shown in FIG. 1 is used for construction as shown in FIG. It should be noted that although not shown, a drainer, a starter, etc. are fixed to the lowermost end of the frame α made of the steel-frame base shown in the figure, and a plurality of floor boards B are horizontally fixed at the pitch of the working width of the fireproof panel A. Therefore, as shown in the drawing, the n-th stage refractory panel A is fixed to the fixing groove 11 and the fixing tool β is attached to the frame α.
It is fixed on the frame α by driving it against.

Next, the female connecting portion 36 of the upper (n + 1) th fire-resistant panel A is attached to the male connecting portion 32 of the fire-resistant panel A. Therefore, in order to form the outer wall, the above steps may be sequentially performed from the base toward the eaves.

Next, an example of the fireproof panel used in the fireproof panel connecting structure according to the present invention is shown in FIG.
First, the surface material 1, for example, a color steel plate (thickness 0.5 mm)
4 from the feeding step C (uncoiler, lifter, etc.) to the shaping step D, and shaped into a shape as shown in FIG.
Insert a long calcium silicate plate as shown in (b). Next, the core material 29, which has been fed to the raw material discharge step F, is mixed with the unfoamed resol-type phenol foam stock solution and various flame retardant materials, reaction adjusting materials and the like, and is uniformly stirred.
The stock solution 29a of No. 2 is discharged from the discharger G onto the back surface 2 of the surface material 1 at a finish density of about 200 Kg / m ³ , and the back surface material 22 made of a color steel plate (thickness 0.5 mm) is fed onto it. H (uncoiler, lifter, etc.), stacked through the molding step I, fed to a predetermined type cure oven J, and cured by continuous foaming for about 7 to 15 minutes at 30 to 100 ° C. to foam,
The product is hardened and integrated, then cut into a predetermined size by a cutter K, and then fed to a packaging process L to obtain a product.

Further, in order to confirm the fireproof property of the fireproof panel A, a fireproof structure test of JIS-A-1304 for 1 hour was carried out, and a satisfactory performance was obtained. Note that the specifications at this time are 0.5 for the front and back materials 2 and 22.
mm color steel sheet, core material 29 is phenolic foam (density 160 kg / m ³ place), inorganic board 31 is 10 m
It was a calcium silicate plate having a thickness of m and the total thickness was about 60 mm. An inorganic packing material 40 made of rock wool felt is continuously formed at the connecting portion γ.

The above description is only one embodiment of the fireproof panel according to the present invention, and the fireproof panel can be formed as shown in FIGS. 9 (a) to 9 (f).

Further, the core material 29 of the fireproof panel A is shown in FIG.
It is also possible to form the fireproof panel A having fire resistance by forming as shown in (a) to (e). That is, FIG.
In (a) to (e), the non-woven fabrics 44 and 45 are interposed between the surface material 1, the back surface material 22 and the core material 29 via the adhesive agent 46, or the lightweight aggregate 47 is closely packed, and the binder is plastic. The form 30 is used.

The non-woven fabrics 44 and 45 are sheet-like materials made of polyester-based, nylon-based, boron-based, carbon-based, alumina-based, silicon carbide-based, and aramid-based fibers, which improve the mechanical strength of the panel A. Surface material 1, back material 2
It has a function of strengthening the adhesiveness between the core material 29 and the core material 29 and improving the flatness of the front surface material 1 and the back surface material 22.

As an example of the adhesive 46, an elastomer type epoxy resin, an emulsion type such as isocyanate such as methylene diisocyanate (abbreviation MDI), a hot melt type, and its modified isocyanate such as urethane modified, buret modified isocyanate, isocyanurate modified isocyanate are used. Etc. are used.

The lightweight aggregate 47 is made of pearlite grains, glass beads, gypsum slag, talc stone, shirasu balloon, etc., and has a diameter of 5 to 20 mm in FIGS. 10 (c) to 10 (e).
By using pearlite particles of a certain degree, it is possible to improve the fire resistance and fire resistance of the core material 29 and also improve the mechanical strength of the panel A.

Further, without mixing an inorganic material such as calcium silicate or calcium carbonate in the plastic foam 30, a foaming agent, aluminum hydroxide, ammonium polyphosphate, graphite, a curing agent is added to the resin raw material of the phenol foam in the above weight ratio. May be formed by mixing
Even in this case, the same fire resistance as the fire resistant panel A in which an inorganic material such as calcium silicate or calcium carbonate is mixed is provided.

In FIG. 9, the inorganic packing material 40 and the waterproof packing material 41 are omitted.

Further, the density of the end portion (connecting portion) of the core material 29 may be higher than that of the central portion.

In addition, the inorganic packing material 40 is formed of a water-absorbent resin which expands when absorbing water and blocks the connecting portions.
It can also significantly improve waterproofness and airtightness.

Further, in FIG. 11, an inorganic packing material 40, for example, rock wool felt, ceramic wool or the like is formed on the surface of the fixing piece 42 of the siding board B, and a gap is formed between the connecting portions γ during the fireproof structure test. It is useful mainly as a function of a refractory material, an airtight material, etc. Although not shown, the vertical packing 43 may be integrally formed with the inorganic packing material 40.

[0043]

As described above, according to the fireproof panel connecting structure of the present invention, the mechanical strength of the fireproof panel is significantly improved as compared with the prior art. Fireproof structure test of building structure (J
IS-A-1304), Fire protection test for building fire doors (JI
S-A-1311), fireproof warehouse (JIS-S-1037)
It has the performance to pass the fire resistance test. The adhesion between the surface material, the back surface material and the core material is strong, and there is no separation between the members. No deformation such as swelling or warpage appears on the surface material or the back surface material. Engaging force is strengthened. Since the mat board and the inorganic board are formed on both ends of the fireproof panel between the joints, the fireproof performance of the joint, which is the weakest point in case of fire, is significantly improved. There are characteristics and effects.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a typical example of a fireproof panel connection structure according to the present invention.

FIG. 2 is a perspective view showing a typical example of a fireproof panel used in the fireproof panel connection structure according to the present invention.

FIG. 3 is a cross-sectional view showing an example of a surface material and a back surface material used in the fireproof panel connection structure according to the present invention.

FIG. 4 is a partially cutaway perspective view showing an example of an inorganic board used in the fireproof panel connection structure according to the present invention.

FIG. 5 is a vertical cross-sectional view showing a state during construction of a wall formed by using the fireproof panel connection structure according to the present invention.

FIG. 6 is a perspective view showing a typical example of a siding plate used in the fireproof panel connection structure according to the present invention.

FIG. 7 is a cross-sectional view showing another embodiment of a siding plate used in the fireproof panel connection structure according to the present invention.

FIG. 8 is a schematic view showing an example of a method for manufacturing a connection structure for a fireproof panel according to the present invention.

FIG. 9 is a cross-sectional view showing another embodiment of the fireproof panel.

FIG. 10 is a partially extracted cross-sectional view showing another embodiment of the fireproof panel.

FIG. 11 is a cross-sectional view showing another embodiment of the fireproof panel.

FIG. 12 is a cross-sectional view showing a conventional example.

[Explanation of symbols]

 A Fireproof panel B Laying board 1 Surface material 2 Back surface 3 Decorative surface part 4 Decorative surface 5 Side edge 6 Side edge 7 Joint bottom surface 8 Upper surface 9 Inclination surface 10 Inclined surface 11 Fixing groove 11a Protrusion 12 Lower surface 13 Fixed convex strip 14 Guide piece 15 Lower edge 16 Abutting inclined surface 17 Abutting inclined surface 18 Lower surface 19 Fitting groove 20 Fitting convex ridge 21 Guide piece 22 Back surface material 23 Bottom surface 24 Abutment piece 25 Inner piece 26 Guide piece 27 Guide piece 28 Tongue piece 29 Core material 29a Undiluted solution 30 Plastic foam 31 Inorganic board 32 Male connecting part 33 Step part 34 Upper protrusion 35 Fitting concave groove 36 Female connecting part 37 Cover part 38 Insertion groove 39 Main convex part 40 Inorganic packing material 41 Waterproof packing material 42 Fixing piece 43 Vertical piece 44 Nonwoven Fabric 45 Nonwoven Fabric 46 Adhesive 47 Lightweight Aggregate α Body β Fixture γ Connection

Front page continued (72) Inventor Minoru Saito 1816, Kaminawa, Kanizawa, Higashine, Yamagata Prefecture, 12 at IGI Technology Co., Ltd. Inside the Institute of Technology Research (72) Inventor Hiroyuki Umezu 1816, Kaminawa, Kanizawa, Higashine, Yamagata Prefecture 12 Inside the Institute of Technology Research, Ltd. (72) Hideki Takiguchi, 1816, Kamisawa, Higashine, Yamane Prefecture No. 12 Inside the IG Technical Research Institute

Claims (1)

[Claims] 1. A surface made of a long flat sheet having a substantially inverted T-shaped cross section from a horizontal flat fixing piece and a vertical piece projecting upward from the substantial center of the fixing piece, and a surface made of a long flat plate material. Material and the back surface material are integrally formed with phenol foam resin and an inorganic material such as aluminum hydroxide, ammonium polyphosphate, graphite, calcium silicate or calcium carbonate mixed in, and the males are formed on both sides in the longitudinal direction. Mold connecting part and female connecting part are provided, and the male connecting part and female connecting part are made of long fireproof panel integrally formed with inorganic board. The fireproof panel is fixed at a fixed pitch, and the fireproof panel is fixed between the vertical pieces of the sheet by fixing the male and female connections and the fixtures.