JP2608336B2 - Slab construction method - Google Patents

Description

The present invention relates to a slab construction method applied to a slab construction process.

<< Conventional technology >> When constructing floor slabs for structures such as houses, wooden frame plates are used as the main material of the formwork, and a large number of joists and pulling bars are arranged at narrow intervals. If he had cured, he had been removed.

When an iron plate was used in place of the wooden frame plate, joists and pulling were not used, and light beams were arranged at wide intervals to reinforce the beam.

When using an iron plate, it was not removed, and only the lightweight beam was removed.

《Problems to be solved by the invention》 However, when a wooden frame plate is used, it takes a great deal of labor and time to dismantle and remove the concrete and remove both sides of the concrete. It was necessary to carry out supporting materials such as boards and edge materials.

Further, in a formwork using an iron plate, it suffices to remove the lightweight beam which serves as a supporting material, but corrosion occurs in a place where the iron plate used as a substitute for the formwork cannot be painted.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a slab construction method that does not require demolding, can obtain sufficient strength with a small amount of support material, and does not leave a problem of corrosion. To offer.

<< Means for Solving the Problems >> In order to achieve the above object, the method of constructing a slab according to the present invention comprises a vertical frame for constructing a vertical foundation such as a cloth foundation, a wall, or a load-bearing wall, A slate, a mortar, a slab made of concrete or the like, and a corrugated slate is horizontally provided between the vertical frame of the adjacent one of the frame portions and the vertical frame of the other frame portion. Then, on the lower surface of the corrugated slate, a support material is applied so as to be orthogonal to the direction parallel to the peaks and valleys of the corrugated slate, between the vertical frames of the skeleton portion and the surface of the corrugated slate. After the concrete is continuously and integrally cast into and cured, and only the supporting material on the lower surface of the corrugated slate is removed, the skeleton part and the floor slab are simultaneously constructed.

<Operation> Since a lightweight and high-strength corrugated slate is used as the slab formwork, the corrugated slate is divided into a vertical form of one adjacent skeleton and a vertical form of the other skeleton. By installing it between the mold and the formwork,
By simply passing the support material perpendicular to the direction parallel to the valley, it is possible to construct a stable and high-strength integrated formwork as a whole, including the vertical formwork. For this purpose, concrete can be cast continuously and integrally from the upright skeleton portion such as a cloth foundation to the horizontally extending floor slab, and the structural portion can be constructed with structural continuity. Then, after the concrete is cured, the construction work can be completed by removing only the supporting material that is applied only in one direction orthogonal to the direction parallel to the peaks and valleys of the corrugated slate.

<< Examples >> Hereinafter, preferred examples of the present invention will be described in detail with reference to the drawings.

Fig. 1 shows how the corrugated slate 1 is used as a formwork for a floor slab. An L-shaped metal fitting 3 is arranged at the upper end of a vertical formwork 2 as a scrap formwork for a cloth foundation. Next, using the lattice beam-shaped lightweight beam 4 as a support material, between the top of one vertical formwork 2 for one cloth foundation and the top of the other vertical formwork for one cloth foundation (not shown). Have passed.

An inverted L-shaped metal fastener 5 is detachably fitted to the end of the lightweight beam 4, and the fastener 5 is locked to the upper end of the vertical frame 2 to support the lightweight beam 4. There is. The vertical frame 2 is a thin plate made of a corrugated slate, mortar or concrete, and has a corrugated slate and a light beam.
It has the strength to withstand the vertical load of cast concrete.

Then, the end of the corrugated slate 1 is placed on the top of the vertical formwork 2 so that the end of the corrugated slate 1 is aligned with the inside of the metal 3 so that the direction parallel to the peaks and valleys of the corrugated slate 1 and the light beam 4 are orthogonal to each other.

At that time, the corrugated slate 1 and the peak of the corrugated slate 1
The other slate 1a that is arranged in series in the direction parallel to the valley and is adjacent to the other slate 1a is attached with waterproof tape 6 between its ends in both cases of laying and overlapping. I'm trying to prevent the leak of this. In addition, mountain
Regarding the joining of the slate ends in a direction perpendicular to the direction parallel to the valley, the slate is sewn together with a tapping screw 7 so as not to overlap or shift, and integrated.

After that, as shown in FIG. 2, a reinforcing bar (not shown) for the floor slab is arranged on the corrugated slate 1, and concrete of the slab 8 is poured.

The vertical formwork 2 is erected on the base 9 so as to face each other with a space therebetween, and the concrete of the slab 8 is continuously and integrally cast with the concrete to be poured into the vertical formwork 2.

If the space between the base 9 and the slab 9 is narrow and it is difficult to carry out the equipment from under the floor of the slab 8, the slab 8 should be preliminarily provided with an opening of about 2 sq. May be.

When the curing of the concrete of the slab 8 is completed, only the lightweight beam 4 is removed while leaving the fastener 5, the vertical frame 2 and the corrugated slate 1 as they are. Then, the lightweight beam 4 is carried out from the opening of the slab 8 having a size of about two square meters, and concrete is applied to the opening by applying a hanging form, whereby the construction of the slab 8 is completed.

The same applies to the case where the base 9 is a slab on the lower floor and the vertical formwork 2 is a weir plate for a load-bearing wall.

<Effects> As described in detail above, since the present invention uses a corrugated slate as a mold for a slab, a support material is required at least along a direction parallel to the peaks and valleys of the slate. In addition, there is an effect that not only the installation and unloading of the timber, but also the removal work and the like are significantly reduced, and the construction period can be shortened.

Further, according to the slab construction method of the present invention, since the slate does not have the possibility of rusting, it is not necessary to remove the slate which is the formwork of the slab. This is extremely effective in terms of shortening. In addition, since a lightweight and high-strength corrugated slate is used as the form for the slab, this corrugated slate can be used as a vertical form for one of the adjacent skeletons and a vertical form for the other skeleton. By installing it across the space between and, the supporting material is only handed over so that it is orthogonal to the direction parallel to the peaks and valleys of the corrugated slate, and the overall vertical structure is stable and It is possible to construct a high-strength integrated formwork, and for such a structure, concrete is continuously and integrally cast from a vertical slab part such as a cloth foundation to a horizontally spread floor slab. The structural part can be constructed so as to have an appropriate continuity. After concrete curing, the construction work can be completed by removing only the support material that has been applied in only one direction perpendicular to the direction parallel to the peaks and valleys of the corrugated slate, which is excellent in shortening the construction period and saving labor. It has the effect.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing a state in which concrete for slab has been poured. DESCRIPTION OF SYMBOLS 1 ... Corrugated slate, 2 ... Vertical frame 3 ... Hardware, 4 ... Light beam 5 ... Fastener, 6 ... Waterproof tape 7 ... Tapping screw, 8 ... Slab 9 ... Base

Front page continuation (72) Inventor Muneo Kato 2-12-10 Shibadaimon, Minato-ku, Tokyo Asano Slate Co., Ltd. (56) Reference JP 48-59618 (JP, A) JP 51-26724 ( JP, A) JP-A-62-202151 (JP, A) JP-A-63-201222 (JP, A) JP-A-63-143613 (JP, U) JP-N-29-3875 (JP, B1) JP Showa 30-16221 (JP, Y1) Showa 35-6258 (JP, Y1)

Claims (1)

(57) [Claims] 1. A vertical frame for constructing a vertical skeleton such as a cloth foundation, a wall or a load-bearing wall is constructed of a slate, a mortar, a concrete plate or the like, and one of the adjacent skeletons. A corrugated slate is horizontally provided between the vertical formwork of the above and the other vertical formwork of the body part, and the lower surface of the corrugated slate is parallel to the peaks and valleys of the corrugated slate. The support material is applied so as to be orthogonal to the direction, concrete is continuously and integrally cast between the vertical frames of the skeleton portion and the surface of the corrugated slate, and after curing, the lower surface of the corrugated slate The method for constructing a slab, wherein the skeleton portion and the floor slab are simultaneously constructed by removing only the supporting material.