JPH06129100A - Floor concrete placement method - Google Patents

Abstract

(57) [Summary] [Purpose] In the case of joining beam form and floor formwork and placing concrete in these beam formwork and on the floor formwork,
It is possible to easily install a splint for splicing between floor concrete and concrete such as beams, and moreover, it is possible to easily insert the slab anchoring streak into this splint to obtain the penetration state of the floor slab. At the same time, the top end of the weir for splicing can be used as a level ruler for beams and floor concrete. [Structure] On a floor formwork 6, a horizontal flange 1b for nailing is provided at a lower end on a boundary line with a beam formwork 5, and a splint 1 for striking is formed in which a reinforcing bar through hole is formed. The slab anchoring streak 11 is penetrated through the through hole, and concrete having different properties is placed with the dam 1 as a boundary.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor concrete separating method capable of separately separating floor concrete and concrete such as beams in the construction of a reinforced concrete structure.

[0002]

2. Description of the Related Art In reinforced concrete construction, since concrete is generally placed on one floor at a time, concrete of columns, beams, walls and floors is of the same type (same strength).

Even when the horizontal and vertical members are separately cast, the vertical member portion (panel zone) to which the beam component is applied.
Since it is difficult to separate the timber with the horizontal timber, it is inevitable that the first floor will have the same strength.

However, when the strength of concrete is dramatically increased, the workability of the concrete is different from the conventional one, and the viscosity is generally high, and the workability is unfavorable as concrete for floor members. Become.

On the other hand, since the floor member bears the load corresponding to the number of floors, the strength does not depend on the number of floors of the building. This can be understood from the fact that, even when the half PCa plate is used as the floor plate, the concrete strength of the half PCa plate does not necessarily have to be the same as that of the concrete of the pillar or the beam.

Although a method of driving such a floor member into concrete of a beam / column member has never been carried out, when attempting to do this, conventionally, a material used for temporarily fixing concrete to another portion is used. Will be done. As these materials, there are a wire mesh such as rib lath and an air bag (a bar-shaped bag by air pressure).

[0007]

However, in the case of a rib lath, it is troublesome to stretch the rib lath, and it takes a lot of time and labor to penetrate the floor slab muscle. Further, in the case of an air bag, a large amount of concrete debris is produced after the air bag is removed, and cleaning of the concrete debris requires a great deal of labor. Therefore, in any case, the feasibility is difficult.

The object of the present invention is to eliminate the disadvantages of the above-mentioned conventional example, to easily install a weir plate for splicing, and to easily insert the slab anchoring muscle into this weir plate, thereby making it possible to remove the floor slab muscle. It is an object of the present invention to provide a method for striking floor concrete in which a penetration state can be obtained and the top end of the weir plate for splicing can be used as a level ruler for beam / floor concrete.

[0009]

Means for Solving the Problems In order to achieve the above object, the present invention provides a method of joining a beam form and a floor form, and placing concrete in the beam form and on the floor form.
On the floor formwork, a horizontal flange for nailing is provided at the lower end on the boundary line with the beam formwork, and a splint for splicing with a reinforcing bar through hole is started up, and slab fixing is performed through the reinforcing bar through hole. The gist of the present invention is to penetrate concrete and place concrete having different properties on the boundary of the dam, and to form a swelling part for a cotter in the dam for bonding.

[0010]

According to the present invention as set forth in claim 1, the weir plate for splicing can be easily mounted on the floor formwork on the boundary line between the beam formwork and the floor formwork only by fastening the horizontal flange at the lower end to the floor formwork. By installing the slab anchorage through the reinforcing bar through hole, the slab anchorage allows the floor slab to exhibit continuity in both the floor concrete portion and the beam concrete portion.

In this way, it becomes possible to place concrete having different properties on the side of the weir board, and the top end of the weir board can also be used as a level ruler for the beam / floor fillet.

According to the second aspect of the present invention, in addition to the above action, the swelling portion for the cotter strengthens the joint between the dam and the concrete, and the bondability between the floor concrete portion and the beam concrete portion is increased. .

[0013]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a vertical cross-sectional side view showing an embodiment of a floor concrete casting method according to the present invention.

First, the weir plate 1 for splicing used in the method of the present invention will be explained. As shown in FIGS. 2 and 3, the vertical plate 1a is made of metal such as steel or hard synthetic resin. Forming a horizontal flange 1b at the lower end of the, and forming a nail hole 2 in the horizontal flange 1b to form a nail fastening flange,
A horizontal flange 1c is also provided on the upper end. The horizontal flange 1c is narrower than the horizontal flange 1b in order to improve the filling property of concrete.

Further, reinforcing bar through holes 3 are formed at appropriate intervals above the vertical plate 1a, and swelling portions 4 for a cotter are formed on the vertical plate 1a by pressing or other means.
It is desirable that the bulging portion 4 is located between the reinforcing bar through holes 3, and the inside is a recess.

In FIG. 1, 5 is a beam formwork, 6 is a floor formwork, 7 is a beam main bar, 8 is a beam stirrup bar, 9 is an upper slab bar, and 10 is a lower slab bar. It is the same as the conventional method that the end of the floor formwork 6 is placed on the upper end of the, and these are combined to form a formwork.

According to the present invention, the horizontal flange 1b is nailed on the boundary line between the beam form 5 and the edge of the floor form 6 to raise the weir plate 1 for splicing. In the figure, reference numeral 12 is a pier arranged at the joint between the beam form 5 and the floor form 6, and the pier 12 is interposed for the nailing.

Further, the slab anchoring muscles 11 were penetrated through the dam 1 through the reinforcing-bar through-holes 3. The slab fixing streak 11 penetrates through the opposing weir plates 1 rising above the left and right beam form frames 5, and has a length that straddles the beam portion.

Although the end portion of the slab anchoring muscle 11 is wrapped around the slab upper muscle 9, the presence of this prevents the floor muscle from increasing.

In this way, since the floor concrete placing portion and the beam concrete placing portion are partitioned to the upper side by the weir board 1, it becomes possible to place concrete having different properties with the weir board 1 as a boundary. . At that time, the top end of the weir plate 1 having the horizontal flange 1c can be used as a level ruler for the beam / floor concrete. When the floor form is a half PC plate or the like and the level accuracy is poor, the horizontal flange 1C can be used as a level ruler by interposing a level adjusting bolt or the like in the horizontal flange 1b.

Alternatively, as shown in FIG. 4, a ladder-shaped unit in which the slab fixing streak 11 and the dam 1 are combined in advance may be prepared and set on the mold.

FIG. 5 shows a second embodiment of the present invention.
As shown in FIGS. 6 and 7, in the weir plate 1 for splicing, reinforcing bar through holes 13 are formed in the lower position in addition to the reinforcing bar through holes 3 in the upper position of the vertical plate 1a. The reinforcing bar through hole 13 may be a cutout hole reaching the horizontal flange 1b.

In this manner, the lower slab reinforcement 10 was passed through the through-holes 13 to penetrate the weir plate 1, and the ends were projected to the beam portions.

[0024]

As described above, the method for placing floor concrete according to the present invention is applied to the case where the beam form and the floor form are joined and the concrete is placed in the beam form and on the floor form. Since floor concrete and concrete such as beams can be separately punched, a splint for splicing can be easily installed, and moreover, the slab anchoring streak can be easily inserted through this splint to penetrate the floor slab streak. In addition to the condition being obtained, the top end of this splint for splicing can be used as a level ruler for beams and floor concrete.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view showing a first embodiment of a floor concrete placing method according to the present invention.

FIG. 2 is a front perspective view showing an example of a splicing plate for splicing used in the method of the present invention.

FIG. 3 is a back side perspective view showing an example of a splicing plate for splicing used in the method of the present invention.

FIG. 4 is a perspective view of a unit showing an application example of the method of the present invention.

FIG. 5 is a vertical cross-sectional side view showing a second embodiment of the floor concrete placing method according to the present invention.

FIG. 6 is a front side perspective view showing another example of a splice plate for splicing used in the method of the present invention.

FIG. 7 is a back side perspective view showing another example of a splicing board for splicing used in the method of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Cushion board 1a ... Vertical board 1b ... Horizontal flange 1c ... Horizontal flange 2 ... Nail hole 3 ... Reinforcing bar through hole 4 ... Bulging part 5 ... Beam form frame 6 ... Floor form frame 7 ... Beam main bar 8 ... Beam stirrup bar 9 ... Upper slab muscles 10 ... Lower slab muscles 11 ... Slab anchorage muscles 12 ... Pier 13 ... Rebar through holes

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Ito 2-14, Shin-eicho, Naka-ku, Nagoya-shi, Aichi Kashima Construction Co., Ltd. Nagoya Branch

Claims (2)

[Claims] 1. When joining a beam formwork and a floor formwork and placing concrete in these beam formwork and on the floor formwork, at the lower end on the boundary line with the beam formwork on the floor formwork. Having a horizontal flange for nailing, launching a splint for striking with reinforcing bar through-holes formed, and passing through the slab anchoring streak through the reinforcing bar through-holes, concrete having different properties with the spar plate as a boundary. A method for placing floor concrete, which is characterized by placing. 2. The method for separately striking a floor concrete according to claim 1, wherein the weir for splicing is formed with a bulge for a cotter.