JP2000336839A - Building structural materials - Google Patents

Abstract

(57) [Summary] PROBLEM TO BE SOLVED: To provide an architectural structural material used for columns, beams, etc., wherein an aluminum material is used as a part of the material. The aluminum material is lightweight and easy to process, so it can be manufactured in various shapes.It has excellent appearance, excellent design, fire protection and fire resistance. Further, the present invention provides a structural material for a building, which does not decrease in strength even at a high temperature and has high safety. SOLUTION: The structural material for building 10 is composed of a core material 1 made of steel, and a coating material 2 made of an extruded aluminum material which is coated on the core material 1 in close contact. When the coating material 2 is hollow, the steel core material 1 is press-fitted into the hollow coating material 2. Coating material 2
Is divided into two parts in the longitudinal direction, the divided coatings 2A and 2B are fitted over the steel core 1 and the connecting edges of the divided coatings 2A and 2B are 3a and 3b are joined by butt welding.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an architectural structural material used for columns, beams and the like.

[0002] In this specification, aluminum is
It is meant to include pure aluminum and aluminum alloys.

[0003]

2. Description of the Related Art Conventionally, materials used for pillars and beams of a building have been limited to wood, iron, and concrete, but in the near future due to the revision of the Building Standard Law, aluminum will also be used as a material for building structural materials. become able to do.

[0004]

The use of such an aluminum material as a structural material for a building has the advantage that it can be manufactured in various shapes due to its light weight and easy processing. On the other hand, there is a problem that the fire resistance and fire resistance are poor and the strength is not sufficient.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a structural material for building which uses aluminum material, has excellent fire resistance and fire resistance, and has sufficiently high strength. There is to try.

[0006]

In order to achieve the above object, a structural material for building according to the present invention is a structural material for building used for columns, beams and the like, and comprises a steel core material and a steel core material. It is characterized by comprising a coated material made of an extruded aluminum material that is closely covered with the material.

[0007] In the case where the aluminum extrusion-shaped covering material is hollow, a steel core material is pressed into the hollow covering material to form a structural material for building.

[0008] The coating material made of extruded aluminum material is
When constituted by divided coating materials that are bisected in the longitudinal direction, these divided coating materials are fitted over a steel core material, and the connection edges of the divided coating materials are joined by butt welding. And structural materials for construction.

[0009] One or more connecting fin-like projections are provided on the outer surface of the aluminum extrusion-shaped covering material of the building structural material so as to extend in the longitudinal direction.

[0010]

Embodiments of the present invention will now be described with reference to the drawings.

Referring to FIG. 1 showing a first embodiment of the present invention, a structural material for construction (10) according to the present invention is used for columns and beams, and is made of steel having a substantially rectangular cross section. It comprises a core material (1) and a coating material (2) made of extruded aluminum material that is closely covered with the core material (1).

Here, the steel core material (1) is SUS
304, STKM304, SS400, etc., for example, having a thickness of 2 to 5 mm are used.

In addition, a covering material made of extruded aluminum material (2)
A5083S-H112, A6063S-T5
, A6N01S-T5, -T6, A6061S-T6
For example, one having a thickness of 3 to 10 mm is used.

In the first embodiment, the coating material (2) made of an extruded aluminum material is constituted by divided coating materials (2A) and (2B) made of an extruded aluminum material which are bisected in the longitudinal direction.

Each of the divided covering members (2A) and (2B) has a substantially U-shaped cross section by right and left side walls (3) and (3) and a connecting wall (4) connecting these parts to each other. ing. These divided covering materials (2A) and (2B) are opposed to each other with the concave portions inside, are fitted over the steel core material (1), and the left and right side walls of the divided covering materials (2A) and (2B) are (3) Connection edge of (3) (3a) (3
b) are connected to each other by butt welding, and joints (5) and (5) are formed between the connection edges (3a) and (3b).

[0016] Aluminum extruded profile split covering material (2A) (2
The butt welding between the connection edges (3a) and (3b) of the left and right side walls (3) and (3) of (B) includes, for example, FSW welding (friction stir welding), MIG welding (MIG welding), and TIG welding (TIG welding). (Welding) or the like.

In this case, for example, as shown in a first modified example of FIG.
The connecting edges (3) of the left and right side walls (3) and (3) of the split covering material (2A) (2B)
a) (3b) are provided with outward projections (7) and (7) to
The thicknesses of (3a) and (3b) are preferably set to be, for example, about 1.1 to 2.0 times as thick as the other portions of the left and right side walls (3) and (3).

According to the structural member (10) of the first embodiment according to the present invention, since the covering material (2) is made of extruded aluminum, it is lightweight and has various properties because of its easy processing. Shaped products can be manufactured, the appearance is very beautiful, and the design is excellent. Further, since steel is used as the core material (1) of the structural material for building (10), for example, when a building using the structural material (10) is heated by a fire or the like, a coating made of an extruded aluminum material is used. Lumber
(2) melts at about 660 ° C, but the steel core (1) does not melt until it reaches about 1400 ° C, and therefore the structural material (10)
Has excellent fire resistance and fire resistance, and does not decrease the strength of columns and beams as building structural materials even at high temperatures, and is extremely high in safety.

Further, the covering material (2) of the structural material for building (10) is
Since it is composed of aluminum extruded profile split coverings (2A) and (2B) having a substantially U-shaped cross section, these two aluminum extruded profiles are combined to form a large building structural material (10). There is an advantage that it can be easily manufactured.

Next, referring to FIG. 3 showing a second embodiment of the present invention, the steel core material (1) is made of an H-shaped steel having a substantially H-shaped cross section.

The left and right side walls (1a) and (1b) of the core material (1) made of the H-shaped steel are joined by butt welding of divided coating materials (2A) and (2B) made of extruded aluminum material. The connecting wall (1) which is brought into close contact with the inner surfaces of the side walls and connects the central portions of the left and right side walls (1a) and (1b) of the core material (1).
The left and right side edges of (c) face the welded portions (5) and (5) of the connection edges (3a) and (3b) of the left and right side walls (3) and (3) of the split covering material (2A) and (2B). It is positioned to be.

The construction material (1) according to the second embodiment of the present invention
According to (0), since the steel core material (1) is made of an H-shaped steel, the steel material (10) of the first embodiment has a substantially rectangular cross section having four side walls. Compared to the core material (1),
It has only three walls (1a), (1b), and (1c), so that it requires less material, is lightweight, and when the building is a fire or the like, the structural material (10) is In addition to having excellent fire protection and fire resistance, it has sufficiently high strength as a structural material for columns and beams even at high temperatures, and also has extremely high safety.

Referring to FIG. 4 showing a third embodiment of the present invention, a connecting wall of an aluminum extruded profiled divided covering material (2A) (2B) having a substantially U-shaped cross section of a structural material for construction (10). Department (4)
Overhanging walls (7) and (7) on the left and right side edges of (4) respectively
(7) (7) are provided facing each other, and the divided covering material (2
A) (2B) left and right side walls (3) (3) and these overhanging walls (7)
(7) (7) (7) Between the left and right side walls (1a) (1b) of the core (1)
Are just fitted, and they are opposed to each other.
(7) Between the end portions (7a) and (7a) of (7), portions near the left and right edges of the connecting wall portion (1c) of the core material (1) made of H-shaped steel are clamped. .

Therefore, according to the building structural material (10) of the third embodiment of the present invention, the steel core material (1) and the split covering materials (2A) (2)
B) is well-combined, has excellent mechanical strength in the normal state that constitutes the structural material of a building, has no so-called rattling, has excellent seismic resistance, and Even in the event of a fire of an object, the structural material (10) has excellent fire resistance and fire resistance, has sufficiently high strength, and is extremely high in safety.

Referring to FIG. 5 showing a fourth embodiment of the present invention, a coating material (2) made of extruded aluminum of a structural material (10) for a building is a hollow body having a substantially rectangular cross section. Lumber
(2) Inside the steel core material (1) with a smaller cross-section and approximately square inside
Is press-fitted, and the covering material (2) is closely fitted over the core material (1).

The construction material (1) according to the fourth embodiment as described above.
According to (0), compared to the case of the first embodiment, the time required for butt welding can be reduced, the manufacturing cost can be reduced accordingly, and the joining portions are formed on the left and right side walls of the covering material (2). Does not exist, so in the event of a building fire,
Extruded aluminum cladding for building structural materials (10) (2)
Is difficult to melt, and the structural material (10) has more excellent fire protection and fire resistance, has sufficiently high strength, and has even higher safety.

In this case, as shown in a second modification of FIG. 6, for example, the coating material (2) made of extruded aluminum of the building structural material (10) is a hollow body having a circular cross section. Inside the cladding (2) a steel core with a smaller circular cross section
(1) may be press-fitted, and the covering material (2) may be closely fitted over the core material (1).

The cross-sectional shape of the hollow aluminum extruded profile material (2) may be any other shape, and a steel core pressed into the interior of the hollow profile material (2). The cross-sectional shape of the material (1) may be another shape.

Next, with reference to FIG. 7 showing a fifth embodiment of the present invention, at four places on the outer surface of an aluminum hollow extruded profile material (2) having a substantially circular cross section, a substantially V-shaped cross section is formed. A total of eight connecting fin-like projections (8) are provided to extend in the longitudinal direction. According to the building structural material (10) of the fifth embodiment, when these are used for pillars and beams of a building, the connecting fins are used for other horizontal and vertical members for building. It can be very easily and firmly connected via the projections (8) and the joint members (not shown), and is very convenient. The covering material (2) can be reinforced by a total of eight connecting fin-shaped protrusions (8) arranged in a substantially V-shaped cross section at four places, and the structural material (10) has extremely high strength. In addition, in the case of fire of building, fin-like projection for connection
(8) Due to the presence of extruded aluminum cladding (2)
Is not easily melted, and the structural material (10) has more excellent fire protection and fire resistance, and is extremely high in safety.

As shown in a third modification of FIG. 8, for example, a covering material made of an extruded aluminum material for a building structural material (10).
(2) is a hollow body having a rectangular cross section, and the hollow covering material (2)
A steel core material (1) having a rectangular cross section smaller than this may be press-fitted into the inside, and the covering material (2) may be closely fitted over the core material (1). In the third modified example, a total of eight connecting fin-shaped protrusions (8) arranged in a substantially V-shaped cross-section are provided at the four corners of the aluminum hollow extruded profile material (2) having a substantially rectangular cross-section. Are provided so as to extend in the longitudinal direction.

The structural material for building of the third modification (10)
According to the sixth embodiment, there is exactly the same advantage as in the case of the sixth embodiment.

Further, as shown in, for example, a fourth modification of FIG. 9, a covering material made of an extruded aluminum material having a rectangular cross section of a structural material for construction (10) and having a fin-like projection (8) for connection ( A core material (1) made of a smaller H-shaped steel may be press-fitted into the inside of (2), and the coating material (2) may be closely fitted over the core material (1). .

The structural material for building of the fourth modified example (10)
According to the third embodiment, there are the same advantages as those of the second embodiment, the fourth embodiment, and the third modification.

[0034]

According to the present invention, as described above, the structural material for building used for the pillars and beams according to the first aspect is a steel core material and aluminum covered closely to the core material. It is made of extruded shaped material, and since the covering material is made of extruded aluminum material, it can be manufactured in various shapes because of its light weight and easy processing, and its appearance is very It is beautiful and has excellent design. Since steel is used as the core material of the structural material for building, when the building using the structural material is heated by a fire or the like, the covering material made of the extruded aluminum material is about 660.
Although it melts around ℃, the steel core material does not melt until it reaches about 1400 ℃, so the structural material is excellent in fire resistance and fire resistance, and as a structural material for columns and beams even at high temperatures The effect is that the strength is not reduced and the safety is very high.

According to a second aspect of the present invention, there is provided a structural material for building, wherein the coating made of the extruded aluminum material is constituted by divided coatings divided into two in the longitudinal direction, and these divided coatings are fitted on the steel core. The connecting edge portions of the divided coating materials are joined by butt welding, and the coating material of the building structural material is made of an extruded aluminum material having, for example, a substantially U-shaped cross section that is bisected in the longitudinal direction. Since it is constituted by the divided covering material, there is an effect that it is possible to easily manufacture a large-sized building structural material by combining these two extruded aluminum members.

Further, the structural material for construction according to claim 3 is:
Since the extruded aluminum-made covering material is hollow and a steel core material is press-fitted inside the hollow covering material, the production cost of the hollow covering material and, consequently, the production cost of the structural material for building are reduced. In addition to being cheap, there is no joint in the coating, so in the event of a fire in a building, the coating made of the extruded aluminum material of the building structural material is unlikely to melt, and therefore has excellent fire resistance and fire resistance At the same time, even at high temperatures, the strength of pillars and beams as a building structural material does not decrease, and the effect that the safety is extremely high is exhibited.

According to the construction material of the present invention, one or a plurality of connecting fin-shaped protrusions are provided on the outer surface of the extruded aluminum-made covering material so as to extend in the longitudinal direction. However, when these building materials are used for columns and beams of buildings, they can be easily and firmly connected to other horizontal and vertical members for building via fin-shaped projections and joint members. It can be very convenient, and of course, the covering material can be reinforced by the connecting fin-shaped projections provided on the outer surface of the aluminum hollow extruded shape covering material, and it can be used for building construction. The material has extremely high strength, and in the case of a building fire, the presence of the connecting fin-shaped projections makes it difficult for the aluminum extrusion-shaped covering material to melt, and the structural material has even better fire protection and Fire resistant and non-safe An effect that is high in.

[Brief description of the drawings]

FIG. 1 is a partial perspective view showing a first embodiment of the present invention.

FIG. 2 is a partial perspective view showing a first modification of the embodiment of FIG.

FIG. 3 is a partial perspective view showing a second embodiment of the present invention.

FIG. 4 is a partial perspective view showing a third embodiment of the present invention.

FIG. 5 is a partial perspective view showing a fourth embodiment of the present invention.

FIG. 6 is a partial perspective view showing a second modification of the fourth embodiment shown in FIG. 5;

FIG. 7 is a partial perspective view showing a fifth embodiment of the present invention.

FIG. 8 is a partial perspective view showing a third modification of the fifth embodiment in FIG. 7;

FIG. 9 is a partial perspective view showing a fourth modification of the fifth embodiment in FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 steel core material 2 extruded aluminum material covering material 2A divided covering material having substantially U-shaped cross section 2B divided covering material having substantially U-shaped cross section 3, 3 left and right side walls 3a connection edge 3b connection edge 5 joining Part 8 fin-shaped projection for connection

Claims (4)

[Claims] An architectural structural material used for columns, beams, etc., comprising a steel core material (1) and an aluminum extruded profile material that is closely covered with the core material (1). (2) A structural material for construction. 2. A coating material (2) made of an extruded aluminum material,
It is composed of split coating materials (2A) and (2B) that are bisected in the longitudinal direction.These split coating materials (2A) and (2B) are fitted over the steel core material (1), and the split coating materials (2A) Connection edge of (2B) (3a) (3b)
2. The parts are connected by butt welding.
Architectural structural material as described. 3. A coating material made of extruded aluminum material (2) is hollow, and a steel core material (1) is provided inside the hollow coating material (2).
The structural material for construction according to claim 1, wherein the pressure is press-fitted. 4. The method according to claim 1, wherein one or a plurality of connecting fin-like projections (8) are provided on the outer surface of the extruded aluminum-made covering material (2) so as to extend in the longitudinal direction. Building structural materials.