JP2779304B2 - Synthetic floor slab - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite slab using an ALC plate.

[0002]

2. Description of the Related Art When an ALC plate is used as a floor slab, since the ALC plate has poor out-of-plane rigidity, the ALC plate cannot be provided with a length extending between the girders. Erect multiple orthogonal beams,
It is necessary to divide the plane surrounded by the girder into a plurality of planes.

The present invention has been made by paying attention to a conventional method of installing an ALC plate.
No. 9553 proposes a composite floor slab that enables a long span, but the present invention increases the out-of-plane rigidity of the ALC plate for the same purpose, and does not require the installation of small beams. It proposes a structure.

[0004]

According to the present invention, there is provided a synthetic floor slab comprising:
In the second invention, the Z-shaped steel members projecting from the lower surface side of the ALC plate erected between the opposed girders and arranged in parallel are arranged in opposite directions.
The end face of the ALC plate is clamped by metal fittings between the inverted L-shaped steel and the Z-shaped steel which are continuous on the upper part of the shaped steel.

In the second aspect of the present invention, metal fittings projecting from the lower surface side of an ALC plate installed between opposing girders and extending in the width direction are disposed at appropriate intervals in the length direction, and the ALC plate is mounted on the ALC plate. A band-plate-shaped steel material is arranged in parallel on the lower side and the lower surface of the receiving hardware, and the ALC plate and the band-plate-shaped steel material are fastened with metal fittings near the end of the ALC plate.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

According to the present invention, a composite floor slab 1 is composed of an ALC plate 2 erected between opposed girders 6 and 6 in one direction and a steel material protruding in parallel on the lower surface side of the ALC plate 2. The ALC plate 2 as a floor slab is reinforced by providing a tensile force on the lower surface side and supplementing the out-of-plane rigidity in the short side direction.

In the first invention, as shown in FIG. 1 and FIG. 2, Z-shaped steels arranged in parallel and projecting from the lower surface of the ALC plate 2 are arranged in the opposite direction to each other as shown in FIG. Steel material 3 with inverted L-shaped steel
-2 is formed in a shape that stiffens the ALC plate 2 while sandwiching the long side end surfaces of the ALC plate 2 in the plate thickness direction, and protects the long side end surfaces of the ALC plates 2 adjacent to each other. is there. In this case, the steel material 3-2 is joined to the ALC plate 2 by bolts 4 and nuts 5 penetrating a portion sandwiching the ALC plate 2. In this embodiment, the ALC plate 2 of the steel material 3-2 is used.
By increasing the size of the part that extends downward, A
The stiffening effect of the LC plate 2 can be increased.

FIGS. 4, 5 and 6 show an embodiment in which a band plate-shaped steel member 3-3 is integrated with the ALC 2 in a state where tension is applied to the steel member 3-3. The steel material 3-3 is arranged on the lower surface of the ALC plate 2 and on the lower surface side of the receiving metal member 7 fixed at an appropriate distance in the length direction.
Is wound around the short side end surface of the ALC plate 2, and a nut 5 is tightened to a bolt 4 passing through the band-plate-shaped steel member 3-3 and the ALC plate 2 near the end of the ALC plate 2 to apply tension.

[0010]

The present invention is as described above. A steel material which bears a tensile force by protruding from the lower surface side of the ALC plate and compensates for out-of-plane rigidity in the short side direction is arranged and integrated with the ALC plate. Thus, since the ALC plate is reinforced, it is possible to extend the span of the ALC plate, and the erection of small beams is not required.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment in which a steel material is integrated with an ALC plate by bolts.

FIG. 2 is a sectional view taken along line xx of FIG. 1;

FIG. 3 is a sectional view taken along line yy of FIG. 1;

FIG. 4 is a plan view showing a modification of FIG.

FIG. 5 is a sectional view taken along line xx of FIG. 4;

FIG. 6 is a sectional view taken along line yy of FIG. 4;

[Explanation of symbols]

1 ... Synthetic floor slab, 2 ... ALC board, 3,3-1,3-
2, 3-3 ... steel material, 21 ... insertion hole, 31 ... notch, 4 ... bolt, 5 ... nut, 6 ... girder, 7 ...
Receiving hardware

Claims (2)

(57) [Claims] 1. A Z-section steel, which is juxtaposed and juxtaposed on the lower surface side of an ALC plate erected between opposing girders, is arranged in the opposite direction, and an inverted L-section steel and a Z-section steel continuous on an upper part of the Z-section steel. A composite floor slab characterized in that the end face of the ALC plate is sandwiched between the brackets and a metal fitting. 2. A receiving member protruding from a lower surface side of an ALC plate installed between opposing girders and extending in a width direction and disposed at appropriate intervals in a length direction. A band plate-shaped steel material is arranged in parallel on the underside of the metal
A composite floor slab characterized in that an ALC plate and a band plate-shaped steel material are fastened with metal fittings near an end of a C plate.