JPH102058A - Steel house member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the machining, provide excellent durability and suppress or interrupt rust, vibration, heat conduction, and propagation of sound by integrally providing a damping layer and a coating layer having specified thicknesses in this order on the surface of a steel forming a frame member. SOLUTION: A damping layer 4 50μm or more in thickness having function of damping the propagation of sound and vibration and also rust preventing and coating functions is provided on at least the surface of a steel single body forming a frame member 1, and a coating layer 5 exhibiting water proofing property, moisture proofing property, contamination resistance, and dressing property is integrally formed thereon. As the material of the damping layer 4, a rubber polymer such as natural rubber, nitrile butadiene rubber, polychloroprene, acrylic acid-butadiene copolymer, urethane elastomer, natural rubber elastomer or the like is used. The coating layer 5 formed on the damping layer 4 is mainly formed of one kind of a coating film having polyester coating material applied thereto, a synthetic resin film and the like, the thickness is set to 10-200μm to protect te damping layer 4 and enhance its performance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a construction for a building, especially for a house, which is made of a thin iron plate (light steel frame), and is provided with rust prevention, earthquake prevention, and the like.
The present invention relates to a steel house member capable of soundproofing, lightening, cost reduction, etc., and enabling effective use and recycling of resources.

[0002]

2. Description of the Related Art Generally, wooden frames, studs, beams, purlins, joists, trunks, bundles, purlins, foundations, etc.
Wooden structures such as girders, rafters, braces, etc., and steel structures using steel materials such as lightweight steel frames (lip channel steel, about 2.3 mm or more in thickness),
It can be roughly divided into so-called prefabricated structures, heavy steel structures and concrete structures.

[0003]

However, in houses, especially in wooden houses, the depletion of resources,
There was an urgent need to shorten the construction period, shortage of skilled technicians, reduce costs, use almost inexhaustible iron, and improve fire resistance.

[0004]

According to the present invention, in order to eliminate such disadvantages, a steel house member has a thickness of at least 50 μm on at least the surface of the steel simple substance so as to cover weak points of the steel simple substance serving as a skeleton material. Provide a damping layer that also has the function of attenuating the propagation of sound and vibration, rust prevention, and a coating function, and integrally form a coating layer that exhibits waterproof, moisture proof, stain resistance, and makeup in the order of steel, The invention proposes a steel house member which is easy to process by suppressing or blocking the propagation of rust, vibration, heat conduction, and sound, which are the weak points of the member, can achieve cost reduction, and has excellent durability.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a steel house member according to the present invention will be described below in detail with reference to the drawings. Figure 1
FIG. 3 shows an example of the above-mentioned steel house member, for example, a skeletal material 1 that is one part or one whole shape of a pillar, a stud, a girder, a joist, a bundle, a ridge, a rafter, and at least the skeletal material 1. It comprises a damping layer 4 and a coating layer 5 integrally fixed to the surface 2.

More specifically, the skeletal material 1 is made of a hot-dip galvanized steel sheet, an electro-galvanized steel sheet, a colored galvanized steel sheet, a galvanized steel sheet, a galvanized steel sheet of 5% to 55% aluminum alloy (generally referred to as galfan or gallibarium steel sheet), or a clad steel sheet. It consists of one or more kinds, and the plate thickness is 0.6-3.
The thickness is about 2 mm, and in particular, the thickness of an aluminum alloy material or the like may be as thick as about 5 to 8 mm.

[0007] The shape of the frame material 1 is a veneer, an embossed material,
Multi-layered structure with adhesive, flat, L-shaped, T-shaped, Y
, X-shaped, U-shaped, C-shaped, Z-shaped, hat-shaped, triangular, polygonal, round, etc. (specifically, H-shaped steel, I-shaped steel,
Grooves, lightweight grooves, lip channels, equilateral angles,
Etc.), and the thickness T, length L, and width W are arbitrarily set according to the purpose and strength.

The damping layer 4 is integrally formed on at least the surface 3 of the skeleton material 1 with a thickness of 50 μm or more, as shown in an enlarged view in FIG. 4, and mainly has a function of reducing sound and vibration propagation. It has a function of covering the inner wall of a processing hole described later with a material. Especially drilling of processing holes, rivets,
There is also a material in which the inner wall of the screw or the like is rolled in due to flexibility and fluidity and covered by the flowing in when the screw or the like is cast.

More specifically, the material of the damping layer 4 may be rubber-like polymers such as natural rubber, nitrile butadiene rubber, polychloroprene, acrylic acid-butadiene copolymer, urethane elastomer, natural rubber elastomer, and the like. The synthetic resin contains gel-like sodium alginate, a carboxyl group-containing polymer, a starch-acrylonitrile graft copolymer, a crosslinked polyvinyl alcohol, or the like, or is impregnated in a fiber sheet.

An adhesive such as an epoxy resin, a phenol resin, or a urethane resin is added to and mixed with the damping layer 4,
Although not shown, the damping layer 4 may be integrally formed on a separate adhesive layer.

The coating layer 5 is formed on the attenuation layer 4 and is mainly formed of one kind of a coating film, a synthetic resin film, etc., and has a thickness of about 10 to 200 microns. Is protection of the attenuation layer 4 and enhancement of its performance.

More specifically, the coating layer 5 may be a coating film (including a foam coating film of about 2 to 10 times), a coating film made of a dew condensation preventing paint,
Synthetic resin film, porous polyethylene sheet (trade name,
For example, Tyvek), paper, cloth (including a sheet made of glass fiber and carbon fiber), etc., are laminated with at least one kind of sheet impregnated or coated with a waterproofing agent such as synthetic resin or starch, or a foamed layer. And its thickness is in the order of 10 microns to less than 200 microns. In addition, the coating layer 5 includes a printed and colored one.

One specific example of the coating layer 5 will be described. As the paint of the coating film, polyester paint, polyurethane paint, silicon paint, acrylic paint, melamine resin, fluorine paint, polycarbonate paint, ABS resin paint, AS resin paint, vinyl acetate paint, nylon paint, polyethylene resin paint, phenol resin paint,
Polypropylene resin paint, vinylidene chloride resin paint, polystyrene resin paint, epoxy resin paint,
EVA resin paint, EPDM paint, acrylic urethane resin paint, and other well-known resin paints are used. The method of curing the paint is arbitrarily selected, such as a room temperature curing type, a UV curing type, and a heating curing type.

The properties of the coating film include dew condensation prevention, waterproofing, contamination resistance, earthquake resistance (cushioning property), abrasion resistance, abrasion resistance, heat insulation, heat resistance, corrosion resistance, rust resistance, weather resistance, adhesion, It has one or more of durability, solvent resistance, and the like. Of course, it is also possible to add the above-mentioned characteristics by stacking a plurality of layers instead of a single coating film.

An example of a synthetic resin film as another coating material of the coating layer 5 is a sheet or the like made of at least one of the above-mentioned resins, a foamed sheet or a foamed sheet with a skin layer, a plurality of sheets. The surface or the like of the attenuation layer 4 is simply covered with a multi-layer sheet or the like, or is covered with an adhesive.

The service coat 6 is provided on the front surface 2 and the back surface 3 of the skeletal material 1 as necessary, and aims at strengthening the adhesive force of the damping layer 4 and preventing rust on the back surface.

(Example 1) Frame material 1 1.2 mm thick galvanized steel sheet Damping layer 4 Urethane elastomer (1 mm thick,
(Double foaming) Coating layer 5 Polyester-based coating (20 microns) (Example 2) Skeletal material 1 1.2 mm thick galvalume steel plate Damping material 4 Carboxyl group-containing copolymer (thickness 1
mm) Coating layer 5 Acrylic resin-based coating film (20 microns) (Example 3) Skeletal material 1 Same as in Example 1 Damping layer Nitrile butadiene rubber (1 m thick)
m) Coating layer 5 Coating of main component of epoxy resin (10 μm) In each of Examples 1 to 3, service surface 6 (5 μm) is applied to front surface 2 and back surface 3. (Comparative Example 1) Frame material 1 1.2 mm thick galvanized steel sheet

(Test Items) (a) Salt Spray Resistance JIS-Z-2371 (Salt Spray Test Method) 1000 hr (Area of Red Rust Occurrence) (b) Sound Insulation (c) Impact Resistance (Dupont 500 g weight, 200 mm) (Drop) (d) Vibration suppression (Time until vibration stops (seconds)) (e) Properties of damping layer 4 at screwed portion (whether or not it exists between screw and frame material 1)

The test results are shown in FIG. Is a relative comparison when Comparative Example 1 is used as a reference value, and is a time (second) until vibration stops after applying vibration, and a damping layer is provided in a gap penetrating between the screw and the skeleton material 1. 4 is absent,
This is a measure of how much the exposed surface of the skeleton material 1 was covered.

The above is only one embodiment of the steel house member according to the present invention, and the steel house member is reinforced by embossing (0.5 mm or more in depth) or ribs for reinforcement. Attachment, end bending,
It can be formed in a groove shape, a box shape, a C channel shape, an L shape, or other cross-sectional shapes.

Further, in a steel house member in which a machined hole 7 such as a screw or a screw is formed, as shown in an enlarged view in FIG. The damping layer 4 is caught between the processing holes 7 of the skeletal material 1, and the rust-prone inner wall of the processing hole 7 is covered with the damping layer 4, which effectively works for waterproofing, corrosion prevention, and vibration prevention.

[0022]

As described above, according to the steel house member according to the present invention, the durability is greatly improved as compared with a member having no skeleton material such as a coating layer at all. The propagation of sound and heat is greatly attenuated and reduced by the lamination of the damping layer and the covering layer, and the living environment is greatly improved. Vibration resistance can be greatly improved, and vibration for the entire building can be reduced. Moisture resistance and salt water resistance are improved. Rust prevention can be greatly improved. Good texture during construction. Vibration and sound propagation can be greatly suppressed for the cost. There are features and effects such as.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a steel house member according to the present invention.

FIG. 2 is an explanatory view showing one embodiment of a steel house member according to the present invention.

FIG. 3 is an explanatory view showing one embodiment of a steel house member according to the present invention.

FIG. 4 is an enlarged perspective view showing a part of a steel house member according to the present invention.

FIG. 5 is an enlarged explanatory view showing an example of a cross section when the steel house member according to the present invention is fastened.

FIG. 6 is a table showing test results of a steel house member according to the present invention.

[Explanation of symbols]

 α Body β Fixture 1 Frame material 2 Front surface 3 Back surface 4 Damping layer 5 Coating layer 6 Service coat 7 Processing hole

Claims (2)

[Claims] 1. A steel house member, wherein a damping layer having a thickness of 50 μm or more and then a coating layer are integrally provided on at least the surface of steel serving as a skeleton material in this order. 2. The steel house member according to claim 1, wherein the damping layer is made of one of an elastomer, a jelly, a gel, and a foamed layer.