JPH0634491Y2 - Formwork and floor slab - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a slab used also as a formwork for the construction of reinforced concrete slabs for structures.

(Prior Art) A reinforced concrete floor slab is constructed by installing a floor slab formwork between beam formwork, arranging a reinforcing bar on the slab formwork, skirting it, and pouring and hardening concrete. The slab formwork is made of temporary plywood that requires supporting materials such as pipe supports and framework supports, and a book that does not require supporting materials and remains as a part of the structure even after hardening of concrete. Some are made of concrete metal plates.

However, in both cases, the reinforcing bar must be laid and skirted at the construction site by a bar laying man with special skills, which not only requires a great deal of time and labor, but also increases the construction cost. There was a problem.

An object of the present invention is to solve the above-mentioned conventional problems, to save labor and shorten the construction period, and also to provide a formwork / slab material which can reduce the construction cost. .

(Means for Solving the Problems) This invention for achieving the above-mentioned object includes a formwork in which a plurality of ridges having a predetermined width and height are formed in parallel with each other at intervals on an upper surface. , At least a pair of upper and lower horizontal bars arranged in parallel at a distance from each other, a plurality of stirrups surrounding the horizontal main bars at a distance from each other, and a coupling extending laterally from the side of an appropriate stirrup bar A plurality of reinforcing bar assemblies having reinforcing bars, wherein the reinforcing bar assembly is arranged between the adjacent ridges of the formwork such that the horizontal main bars are parallel to the ridges, and the lower end of the stirrup bar is a mold. It is characterized in that it is fixed to the upper surface of the ridge in a state of being separated from the frame.

(Embodiment) The present invention will be described below based on an embodiment shown in the drawings.

As shown in FIGS. 1 to 3, 1 is a mold, and this mold 1
Is composed of a flat plate 2 made of metal and a channel member 3 made of metal constituting a plurality of ridges. The plurality of groove-shaped members 3 are arranged in parallel with each other on the upper surface of the flat plate 2 and are fixed to the flat plate 2 at an outward horizontal piece 3a formed at the open end thereof.

Reference numeral 4 denotes a reinforcing bar assembly, which is composed of a pair of upper and lower horizontal main bars 5,6, a plurality of stirrup bars 7 and connecting bars 8. The horizontal main bars 5,6 are spaced from each other. Are arranged parallel to each other, and a plurality of stirrup bars 7 are arranged around these horizontal main bars 5 and 6 at a distance from each other.
Is fixed to the horizontal main bars 5 and 6 at its corners. On one side or the other side of the appropriate stirrup 7, a connecting streak 8 that laterally extends is fixed.

The reinforcing bar assembly 4 is arranged between the adjacent channel members 3 such that the horizontal main bars 5, 6 are parallel to the channel members 3. At that time, the connecting bar 8 is fixed to the upper surface of the channel member 3, whereby the reinforcing bar assembly 4 is fixed in a state where the lower end of the stir bar 7 is separated from the form 1.

The production of the reinforcing bar assembly 4 and the hem of the assembly 4 to the formwork 1 can be performed at both the construction site and the processing factory, but it is more efficient and accurate at the processing factory.

The floor slab composed of the form 1 and the reinforcing bar assembly 4 is placed between beams (not shown) of the structure, and the main bars 5 and 6 are anchored in the beams. Then, concrete is cast on the formwork 1 to be hardened, and thus the reinforced concrete floor slab is formed.

According to such a floor slab material, it is extremely easy to attach the reinforcing bar assembly 4 to the formwork 1 only by fixing the connecting bar 8 to the upper surface of the channel member 3 formed on the upper surface of the formwork 1. Moreover, it can be performed accurately. Further, by supporting the reinforcing bar assembly 4 to the channel member 3 via the connecting bar 8 as described above, the stirrup bar 7 is separated from the formwork 1 to obtain a predetermined concrete cover thickness. You don't need any equipment. Further, the floor slab material has a floor slab structure having a plurality of beam beams, and can be expected to have high strength. Further, in the case where the ridge is constituted by the groove-shaped member 3 as described above, it is possible to directly carry out electrical wiring inside the ridge, so that electric piping is not necessary.

Floor slabs are unitized as having appropriate width and length, and the number of slabs is laid according to the floor slab (slab) of the building.

(Effect of the Invention) As described above, according to the present invention, since the floor slab is composed of the form and the rebar assembly fixed to the frame, the rebar assembly can be manufactured at a place other than the construction site such as a factory. Further, the hem of the reinforcing bar assembly to the mold can be easily and accurately arranged by simply arranging the assembly between the adjacent ridges provided on the mold and fixing the connecting bar to the ridge. You can do it. For this reason, the conventional bar arrangement work based on the special skill at the construction site is not required, and thus the work period can be shortened and the construction cost can be reduced by the labor saving of the work.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a plan view of the same as above, and FIG. 3 is a sectional view of the same as above after concrete is poured. 1 ... Formwork, 2 ... Flat plate 3 ... Channel member, 4 ... Reinforcing bar assembly 5 ... Upper horizontal main bar, 6 ... Lower horizontal main bar 7 ... Rib bar, 8 ... Connecting bar

Claims (1)

[Scope of utility model registration request] 1. A formwork in which a plurality of ridges having a predetermined width and height are arranged in parallel on an upper surface, and at least one upper and lower sides are arranged in parallel with each other. A pair of horizontal main bars, a plurality of stirrups surrounding these horizontal main bars at intervals, and a plurality of reinforcing bar assemblies having connecting bars laterally extending from the sides of the appropriate stirrup bars; Is arranged between the adjacent ridges of the mold so that the horizontal main bar is parallel to the ridge, and the lower end of the stirrup is fixed to the upper surface of the ridge in a state of being separated from the mold. A floor slab that also serves as a formwork.