JPH11324202A - Deck for floor step - Google Patents

Abstract

(57) [Problem] It is an object of the present invention to provide a floor step deck having various functions, which has a reasonable and simple structure and facilitates floor construction. SOLUTION: A floor step deck A is formed into a folded plate shape from an upper horizontal plate 1, a lower horizontal plate 2, and a vertical plate 3 between the horizontal plates 1, 2, and a horizontal plate 1, 2, and a vertical plate. 3 is rib 11,1
2, 13 were provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deck for a step on a floor in a building.

[0002]

2. Description of the Related Art Conventionally, a supporting structure of a reinforced concrete floor slab s having a step is, as shown in FIG.
A small beam b is installed at the position, a deck plate d is arranged between the small beam b and an adjacent beam g, and the floor slab s is deck-plated.
And are supported by beams d and beams b and g.

[0003]

In the above prior art, since the small beam b is installed at the position of the step h, the quantity of the small beam increases accordingly. As a result, the number of work steps increases and the construction cost increases.

[0004]

SUMMARY OF THE INVENTION An object of the present invention to solve the above-mentioned problems is to provide a deck for a step portion of a floor having various functions, the structure of which is rational and simple, and the floor can be easily constructed. Is to do.

[0005]

In order to achieve the above object, a deck for a floor step portion of the present invention is formed in a folded plate shape from an upper horizontal plate, a lower horizontal plate, and a vertical plate between the horizontal plates. The horizontal plate and the vertical plate have ribs.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. <B> Deck A for the floor step The deck A for the floor step is a member that supports the floor slab 6, and is processed into a folded plate shape. When this deck A is used for the concrete slab 6 of the stepped portion H, the upper horizontal plate 1 of the deck A becomes a floor frame and can also serve as a structural member depending on the purpose of use.

The corners of the horizontal plates 1 and 2 and the vertical plate 3 of the deck A are used by bending a single plate or joining two plates by welding.

Plate ribs 11, 12, and 13 are welded to the horizontal plates 1, 2 and the vertical plate 3 of the deck A as shown in the drawing, or the horizontal plates 1, 2 and the vertical plates 3 are bent. A rib formed by processing may be used. The cross section of the rib is I-shaped, V
Type, U type, inverted T type and the like.

The illustrated deck A for a floor step includes an upper horizontal plate 1 having a large width L, a vertical plate 3, a lower horizontal plate 2 having a small width, and ribs 11 fixedly connected to the plates 1, 2, 3. , 12,1
3. In the above, when the step H of the floor is low, the ribs 12 and 13 of the vertical plate 3 and the lower horizontal plate 2 are used.
When the horizontal distance L from the step H to the beam 9 is short, the ribs 11 of the upper horizontal plate 1 may be omitted.
The lower horizontal plate 2 is fixed to a deck plate 8 with screws 5.

[0010] The deck A for floor steps can be applied to a case where the steps H have a plurality of steps or are inclined (not shown). As a result, the amount of concrete at the step can be reduced. When the step portion H is inclined, a swash plate may be used instead of the vertical plate 3 shown.

<B> Floor Support Structure Using Floor Step Deck A The floor step deck A comprises an upper horizontal plate 1 and a lower horizontal plate 2,
And a vertical plate 3 between the upper and lower plates 1 and 2 is formed into a folded plate shape, and ribs 11, 12, and 13 are fixed to the plates 1, 2, and 3, respectively. The deck A is arranged on the deck plate 8 and the beam 9 as a floor form of the stepped portion H, and has a structure for supporting the floor slab 6.

The end of the upper horizontal plate 1 of the deck A is a beam 9
To the lower horizontal plate 2 with screws or welding.
Are fixed to the deck plate 8 with screws 5. still,
Instead of this screw 5, it may be fixed by welding. A concrete for the slab 6 is cast using the deck A for the floor step portion and the deck plate 8 as a floor formwork. Therefore, the slab 6 is supported by the deck A with the rib 11,
Furthermore, since it is supported by the deck plate 8 and the beam 9,
There is no need to provide a small beam at the step H as in the conventional case.

<C> Space 10 for equipment below the deck A for floor stepped part According to <B>, the deck A for floor stepped part and the deck plate
A substantially rectangular space 10 is formed between the gates 8. The space can be used as the space 10 for facilities such as piping, wiring, and ducts. For example, if you use it in a water room,
The pipes for hot water supply, water supply, drainage, etc. of the equipment space 10 can be freely arranged at necessary places on the floor of the low portion of the stepped portion H (the water circulating room), and the space 10 is a duct space.
In this case, functions such as air conditioning and ventilation can be easily supplied to the living room floor.

[0014]

Since the present invention has been described above,
The following effects can be obtained. The deck for the floor step is formed from an upper horizontal plate, a lower horizontal plate, and a vertical plate between the horizontal plates as a folded plate, and the horizontal plate and the vertical plate are provided with ribs. Since there is no need to install beams, the number of beams is reduced, which is economical, and the indoor space is widened. <B> Since the slab does not become thick, the amount of concrete is small and the building weight can be reduced. <C> When changing the use or function around the step, it is easy to disassemble and reconstruct the deck and the slab on the deck. <D> By using the deck as the floor formwork, the floor slab at the stepped portion can be easily constructed and supported, so that labor saving of construction and reduction of construction cost can be achieved. <E> Since the space adjacent to the step can be used as a space for facilities such as piping, the added value of the building is increased.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a deck for a floor step portion according to the present invention and a supporting structure thereof.

FIG. 2 is a cross-sectional view showing a conventional step floor support structure.

Claims (1)

[Claims] 1. A stepped portion formed in a folded plate shape from an upper horizontal plate, a lower horizontal plate, and a vertical plate between the upper horizontal plate and the lower horizontal plate, wherein the horizontal plate and the vertical plate each have a rib. Deck.