JPS6154904B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of constructing a concrete floor slab.

Conventionally, when constructing concrete slabs, the formwork was assembled as a temporary structure and dismantled after the concrete was poured and hardened.
Therefore, various temporary equipment such as pipe supports are required, and the assembly and disassembly work requires a lot of labor, resulting in high construction costs.

Additionally, the electrical work associated with the construction of concrete slabs required two steps: installing electrical piping after assembling the formwork, and then installing electrical wiring after the concrete had hardened.

It is an object of the present invention to provide a method for constructing a concrete floor slab that can eliminate the drawbacks of the conventional construction methods as described above.

The present invention will be explained below with reference to the illustrated embodiments.

Figure 1 shows the floor slab material 1 used in this invention method.
It is shown. The floor slab material 1 has upright pieces 3 formed on both side edges of the bottom part 2, and a plurality of channel steel members 5 each having a horizontal piece 4 formed on the edge of both upright pieces 3 and arranged parallel to each other at a predetermined interval. These channel steel materials 5
A flat steel plate 6 is placed on top, and each horizontal piece 4 of the channel steel material is fixed to the flat steel plate 6. The length of the flat steel plate 6 along the channel steel material 5 is shorter than the length of the channel steel material 5, and both ends of the channel steel material 5 are connected to the flat steel plate 6.
stands out from Further, the flat steel plate 6 has a first joining piece 7 formed by bending it diagonally downward and then diagonally upward on one side edge along the channel steel material 5, and on the other side edge. A second joint piece 8 is formed by bending this diagonally downward.

A large number of such floor slab materials 1 are sequentially arranged between adjacent beams 9 (only one is shown) in a steel frame structure as shown in FIGS. Fix it on top of 9. Further, the first joint piece 7 and the second joint piece 8 of each floor slab material 1 are connected to the adjacent floor slab material 1.
The second joint piece 8 and the first joint piece 7 are respectively engaged and joined. Between the many floor slab materials 1 facing each other on the beam 9, hanging pieces 11 are formed on both sides of the horizontal portion 10 as shown in FIG. A cover 1 formed with a large number of notches 12 formed at intervals corresponding to the intervals between
3 is disposed with its notch 12 fitted into the grooved steel material 5, thereby connecting the flat steel plates 6 facing each other on the beam 9 via the horizontal portion 10 of the cover 13.

Once a large number of floor slab materials 1 are installed as described above, these floor slab materials 1 are used as waste forms and concrete 14 is placed on top of them to form a concrete floor slab.

Other embodiments are shown in FIGS. 6-8. In the floor slab material 1a used in this example, the flat steel plate 6 is longer than the channel steel material 5, and the width direction edges of the flat steel plate 6 protrude from both ends of the channel steel material 5. Other than this, it is the same as the floor slab material 1 of the previous example.

A large number of such floor slab materials 1a are arranged between adjacent beam forms (only one is shown) 15 in a reinforced concrete structure as shown in FIGS. 7 and 8,
The widthwise edge of the flat steel plate 6 is placed on the top of the vertical frame 16, and both ends of the grooved steel material 5 are placed on the upper one of the two supports 17. Then, a concrete floor slab is formed by using a large number of floor slab materials 1 as a waste mold frame, and pouring concrete on top of it. 18 indicates a form tie that fastens the beam formwork 15.

In both of the above embodiments, the number of channel steel members constituting the floor slab material, that is, the arrangement interval, may be changed as appropriate depending on the load applied to the concrete floor slab, and is not limited.

As described above, this invention has a plurality of groove-shaped members formed at predetermined intervals, in which upright pieces are formed on both sides of the bottom and horizontal pieces are formed on the edges of both upright pieces, and these groove-shaped members are arranged at predetermined intervals. Placing a flat plate on a channel-shaped member and fixing the flat plate to the horizontal piece of each channel-shaped member, a large number of floor slab materials are placed between adjacent beams in a steel structure or between adjacent beams in a reinforced concrete structure. Between the shoring materials of the frame, both ends of each channel-shaped member are positioned on the beam or the shoring material, and the concrete is poured onto these floor slabs. No temporary equipment is required to support the floor slab material installed as a frame, and furthermore, work such as dismantling and removal is not required, so construction can be carried out in a short period of time and at low cost.

It is also possible to use the channel-shaped members of the floor slab material and connect electrical wiring directly to the channel-shaped members before concrete is poured, which not only eliminates the need for electrical piping, but also allows for easy installation of concrete floor slabs. This has the effect of reducing the labor involved in electrical work.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the floor slab material used in the method of this invention, Figure 2 is a perspective view showing a concrete slab constructed using the same material, and Figure 3 is a perspective view of the concrete slab material used in the construction method of this invention. 4 is a sectional view taken along the line - in FIG. 3, FIG. 5 is a perspective view showing the cover, and FIG. 6 is a perspective view showing another embodiment of the floor slab material. , Fig. 7 is a perspective view showing the concrete slab constructed using the same as above, Fig. 8
The figure is a side sectional view of the same as above. 1... Floor slab material, 2... Bottom, 3... Upright piece, 4
...Horizontal piece, 5 ... Channel steel material, 6 ... Flat steel plate, 9
... Beam, 13 ... Cover, 14 ... Concrete, 15 ... Beam formwork, 17 ... Shoring material.

Claims (1)

[Claims] 1 Forming upright pieces on both sides of the bottom,
A plurality of groove-shaped members with horizontal pieces formed on the edges of both upstanding pieces are arranged at predetermined intervals, a flat plate is placed on these groove-shaped members, and the relationship between this flat plate and each groove-shaped member is A large number of floor slabs made by fixing horizontal pieces are installed between adjacent beams in a reinforced structure or between supporting materials of adjacent beam formwork in a reinforced concrete structure.
1. A method of constructing a concrete deck slab, which comprises arranging both ends of each channel member on the beam or the supporting material in sequence, and pouring concrete onto these floor slab materials.