JP3167783B2 - Floor unit for steel building - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lightweight and high-strength floor for a steel-framed building mainly comprising a steel plate and a honeycomb-shaped core.
It is about a unit .

[0002]

2. Description of the Related Art In a floor of a conventional steel building, another steel beam member called a small beam is stretched between steel beam members called a large beam. A corrugated steel plate called a keystone plate is installed and fixed on the upper part, a concrete is cast on the corrugated steel plate, and the concrete is cured for a predetermined period of time. In addition, this corrugated steel sheet is left installed and not removed. In the case of such a floor where concrete is cast and constructed on the site, a curing period of the concrete is required, and the construction period for the construction is prolonged. Weight also increases.
Further, in the case of the floor as described above, it is necessary to provide small beams between the large beams to maintain the strength of the floor. Further, the floor may be cracked due to long-term use.

[0003]

SUMMARY OF THE INVENTION The present invention breaks down the conventional concept of the floor of a steel building constructed by casting concrete on site and constructing flooring in advance in a factory. This floor material is attached to the beam of the building and fixed, thereby enabling weight reduction and mass production of steel building floors.
The task was to provide units .

[0004]

According to the present invention, there is provided a floor unit for a steel-framed building according to the present invention, wherein a core material in which a large number of strip-shaped steel plates are formed in a honeycomb shape between an upper plate made of a square steel plate and a lower plate similar thereto. A large number of these three members are fixed together
The floor material is connected vertically and horizontally, the outermost floor material is fixed to the beam member, and the height of the floor material is gradually increased from the center toward the outer periphery. I have.

Hereinafter, the present invention will be described in more detail with reference to examples. FIG. 1 is a plan view of a floor of a steel building according to the present invention, in which a beam member 2 (see FIG. 9) made of H-shaped steel is horizontally stretched between steel columns 1. . Between the beam members 2, a floor unit U in which a large number of floor materials F according to the present invention are connected vertically and horizontally is fixed. This flooring F
As shown in FIGS. 2 and 3, a core member 5 is interposed between an upper plate 3 made of a rectangular steel plate and a lower plate 4, and these three members are integrally fixed by welding. It has become.

[0006] A strip-shaped steel plate is fixed at a certain length and is rotated in the same direction by 60 °.
After being bent only two times, the same angle in the opposite direction
A number of core members 5a (see FIG. 4) are formed by repeating the bending operation, and the core members 5a are alternately shifted in the length direction by a half pitch (P / 2) alternately. When the opposing surfaces are brought into close contact with each other and fixed by welding, as shown in FIG. 5, a honeycomb-shaped core material in which a large number of regular hexagonal portions are formed adjacent to each other in plan view. 5 are formed. Since the floor material F of the present embodiment has a structure in which two adjacent sides of itself are connected to each side of the other floor material F during use, both ends of the core material unit 5a are:
The connecting piece 5b is bent at a right angle.

In order to integrate the core member 5 having the above-described structure between the upper plate 3 and the lower plate 4 to integrate the three members, the following is performed. First, as shown in FIG.
The core material 5 is placed on the core, and the two are welded at many positions in this state. As shown in FIGS. 2 and 3, the lower plate 4 includes
A number of welding fixing holes 6 are provided, and the lower plate 4 is placed on the core material 5 to which the upper plate 3 is integrally welded, and the lower plate 4 and the core are When the material 5 is fixed at a number of places by welding, the core material 5 is interposed between the upper plate 3 and the lower plate 4, and the floor member F in which the three members are integrally welded.
Becomes The fixing hole 6 for welding provided in the lower plate 4 has a long hole shape in a direction orthogonal to the thickness direction at a portion where the core material unit 5a is located. By making the welding fixing hole 6 into a long hole in this way, even if the lower plate 4 is slightly displaced with respect to the core material 5a, the core material 5a is positioned at the welding fixing hole 6 portion. It is like that.

As shown in FIGS. 2 and 3, the lower plate 4 is formed to be slightly smaller than the upper plate 3, and the upper plate 3, the lower plate 4 and the core material 5 are connected as described above. When the floor material F is integrally formed, the peripheral edge of the lower plate 4 enters inside the peripheral edge of the upper plate 3 by a predetermined length, and when the two floor materials F are connected as described later, a hole is formed in the connection portion. Part 7 (see FIG. 8)
Is formed. The presence of the hole 7 allows the two floor materials F to be connected.

As described above, the floor material F according to the present invention has a structure in which two adjacent sides thereof are connected to each side of the other floor material F during use. As shown in the figure, the long side of the floor material F is connected by connecting a large number of closely contacted portions of the respective core materials 5a at the ends of the floor materials F to be connected with the bolts 8 and the nuts 9. It is done by. On the other hand, the connection of the short side of the floor material F is performed by connecting the connection pieces 5b of the many core materials 5a located at the ends of the floor materials F to be connected with each other by the bolts 8 and the nuts 9. By doing that. Further, as shown in FIG. 9, the side connected to the beam member 2 of the floor member F connected to the outermost peripheral portion has the lower plate 4 reaching the core 5 and the upper plate 3 , Protrude from the core material 5 by a predetermined length. And
As shown in FIG. 9, the fixing of the floor member F to the beam member 2 is performed by fixing the connecting plate 11 to the beam member 2 by welding, and connecting the core material 5 a to the connecting plate 11 via the bolts 8 and the nuts 9. It is performed by fixing.

In the floor structure of a steel building according to the present invention, a plurality of floor members F are connected vertically and horizontally to form a floor unit U, and the outermost floor member F of the floor unit U is fixed to the beam member 2. As shown in FIGS. 1, 6, and 7,
When the height of the floor materials F to be used is gradually increased from the central portion to the outer peripheral portion, the weight and strength of the entire floor can be reduced. In order to change the height of each floor material F, the height (H) (see FIG. 4) of the core material 5a constituting the core material 5 may be changed. In addition, the corner part arrange | positioned at the part of the steel support | pillar 1 in the floor material F is cut out in a square shape in order to avoid interference with this.

The core member 5 of the above embodiment is formed in a honeycomb shape in which a large number of regular hexagonal portions are gathered in a plan view, but the individual shapes constituting the honeycomb shape are regular hexagons. The floor material is not limited to a square shape. In short, in order to reduce the weight and strength of the floor material, the floor material may have a honeycomb shape.

[0012]

The floor unit for a steel building according to the present invention.
Between the upper plate made of square steel and the lower plate
With a core made of a honeycomb-shaped steel plate
A large number of floor materials with these three members fixed together
Floor unit that is connected and the outermost floor material is fixed to the beam members.
The height of the flooring from the center to the outer periphery
Is gradually increased, so the required strength is maintained
Thus, the weight of the entire floor can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state in which a floor unit U according to the present invention is fixed to a beam member 2. FIG.

FIG. 2 is a partial perspective view of a corner portion of the floor material F according to the present invention.

FIG. 3 is a partial bottom view of the same.

FIG. 4 is a perspective view of a core material unit 5a constituting the core material 5;

FIG. 5 is a floor material F in the process of being manufactured by welding the upper plate 3 and the core material 5
FIG.

FIG. 6 is a sectional view taken along line XX of FIG. 1;

FIG. 7 is a sectional view taken along line YY of FIG. 1;

FIG. 8 is an enlarged plan sectional view of a portion indicated by C in FIG. 1;

FIG. 9 is an enlarged sectional view of a fixing portion of the floor unit U to the beam member 2.

[Explanation of symbols]

 F: Floor material U: Floor unit 3: Upper plate 4: Lower plate 5: Core material 5a: Core material alone

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-29648 (JP, A) JP-A-58-189439 (JP, A) JP-A-58-26149 (JP, A) JP-A 63-29649 107638 (JP, A) JP-A-1-178642 (JP, A) JP-A-62-167015 (JP, U) JP-B-42-13356 (JP, B1) (58) Fields investigated (Int. ⁷ , DB name) E04B 5/02 E04C 2/36

Claims (1)

(57) [Claims] 1. A three-piece steel plate having a plurality of strip-shaped steel plates interposed between a top plate made of a square steel plate and a lower plate similar thereto, and these three members are integrally fixed. Multiple floors
A floor unit in which materials are connected vertically and horizontally, and the outermost floor material is fixed to a beam member, wherein the height of the floor material is gradually increased from the center toward the outer periphery. Floor unit for steel building.