JPH09279839A - Placing method of concrete and concrete form - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust the width of a bottom frame in accordance with beams and reduce the cost, by arranging a plurality of square timbers at the lower ends of the side frames disposed oppositely and placing concrete between the side frames and the bottom frame on which an impervious sheet is laid. SOLUTION: Side frame plates 2 for beams oppositely arranged are extended down from both edges of the opening 11 of a slab form 1. A specified number of square wooden, steel, or resin materials 31 are arranged between the lower ends of the side frame plates 2 for beams to form the nearly same width with the bottom width of the beam. An impervious sheet 32 is laid on the upper face of these square timbers so as to cover the whole bodies. A specified support member 4 is assembled at the bottom of the square timbers 31 and concrete 5 is placed in the space surrounded by the side frame plates 2 and the bottom frame 3. In this way, concrete is prevented from flowing out of clearances of the square timbers 31 and also demanding is facilitated. Even when the beam width is altered, the bottom frame can be adaptable by increasing or decreasing the arranged number of the square timbers 31, and hence, it is not necessary to make bottom frames for every beam width.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete placing method and a placing form for constructing a concrete skeleton such as a beam.

[0002]

When constructing a concrete skeleton such as a beam, a form is installed on both sides and the bottom of the concrete skeleton, and the concrete is placed inside. However, because of the beams, the length of the beams (vertical length)
While the beam width is almost constant, the beam width is often changed as needed. Therefore, it is necessary to manufacture a plurality of bottom frames to be installed at the bottom of the beam according to the type of beam width, and the bottom surface of the form has a long period for the form to be used and the number of diversions is small because the form dimensions are different. Therefore, there are problems in terms of cost and workability.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and the width of the bottom frame can be appropriately adjusted according to the width of the concrete frame such as a beam, and the cost can be reduced. An object of the present invention is to provide a concrete placing method and a placing form which are excellent in terms of surface and workability.

[0004]

According to a first aspect of the present invention, as a means for solving the above-mentioned problems, side frames are arranged to face each other, and a plurality of timbers are arranged between lower end portions of the side frames, and a timber group. A waterproof sheet or a resin plate is laid on the upper surface of the to form a bottom frame, and the concrete is placed in the space surrounded by the side frame and the bottom frame. Provide the setting method.

A second aspect of the present invention is a formwork used as a bottom frame of a concrete formwork, in which a required number of square members are arranged so as to have a width substantially equal to the bottom width of the concrete frame, and these square members. A concrete casting formwork characterized by comprising a waterproof sheet or a resin plate laid on the upper surface of the group.

Further, according to a third aspect of the present invention, the side frames are arranged so as to face each other, and a frame embedding member such as a reflector of an illuminator is arranged between the lower ends of the side frames, and the required number is provided on both sides of the body embedding member. The rectangular pieces are arranged, a waterproof sheet or a resin plate is laid on the upper surface of the rectangular group to form a bottom frame, and a concrete is placed in the space surrounded by the side frame and the bottom frame. This is the concrete placing method.

[0007]

First Embodiment of the Invention FIG. 1 shows a first embodiment of the present invention. In the following embodiments, the concrete
The case of constructing a beam as a frame body will be described, but the present invention can be applied to other concrete frames.

In the figure, reference numeral 1 denotes a slab frame for placing a slab, and plate-shaped beam side frames 2 are made to hang down from both edges of an opening 11 of the frame. In the case of a beam, since the beam back (length in the vertical direction) is substantially constant, the length in the vertical direction of the beam side frame 2 is determined accordingly. The type of the beam side frame 2 is not particularly limited.

Between the lower ends of the side frames 2 for beams, a bottom frame 3 for beams comprising a square member 31 and a waterproof sheet 32 is installed. Timber 31
Are arranged in a required number so that the width is approximately equal to the bottom width of the beam. Therefore, even if the beam width is changed, it can be adapted as a bottom frame by increasing or decreasing the number of arranged square members 31, so that it is not necessary to fabricate a bottom frame for each beam width. The timber 31 is made of wood,
Any material such as steel or resin can be adopted, and it may be hollow.

A waterproof sheet 32 is provided on the upper surface of the group of square members 31 so as to cover the whole. As a result, it is possible to prevent the concrete from flowing out from the gap between the groups of the square members 31 and also to easily remove the mold. A resin plate or the like may be used instead of the water blocking sheet. In addition, the finished surface can be matte, textured, grained, or glossy depending on the type of waterproof sheet or resin plate. Furthermore, if a sheet used for the dehydrating function of a cement board press is used, a beautiful finish free of avatars and bubbles can be obtained.

Then, when a predetermined supporting member 4 is assembled on the bottom of the square member 31 group, preparation for placing concrete is completed. After placing the concrete 5 in the space surrounded by the beam side frame 2 and the beam bottom frame 3, only the beam side frame 2 is removed in 2 to 4 days, and the other place is placed. It can be diverted to work.

[0012]

Embodiment 2 FIG. 2 shows that a frame embedding member such as a reflector plate 6 of an illuminator is arranged between the lower ends of beam side frames 2, and a required number of square members 31 are arranged on both sides of the frame embedding member. -Shows a case in which the reflector 6 and the like are integrally formed on the bottom of the beam by placing a grate. In this case, it is advisable to provide the square member 31 with a groove for wiring. A plurality of reflectors 6 can be installed.

[0013]

Since the present invention has been described above,
The following effects can be obtained. <B> Even if the bottom width of the concrete frame such as beams is changed,
Since it can be adapted as a bottom frame by increasing or decreasing the number of timbers arranged,
Since it is not necessary to prepare a plurality of bottom frames for each beam width, the cost is excellent.

<B> Since all that is needed is to arrange square members and lay a waterproof sheet or a resin plate, the bottom frame can be constructed quickly and easily. In addition, the finished surface can be selected from matte, cloth, wood grain, gloss, etc. depending on the type of sheet or resin plate.
Furthermore, if a sheet used for the dehydrating function of a cement board press is used, a beautiful finish free of avatars and bubbles can be obtained.

<C> When a frame-embedding member such as a reflector of an illuminator is used as a part of the bottom frame, square members can be arranged in the voids on both sides of the bottom frame to form the bottom frame. The cost can be further reduced and the construction can be quick and easy.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of Embodiment 2 of the present invention.

Claims (3)

[Claims] 1. A side frame is arranged so as to face each other, a plurality of timbers are arranged between the lower ends of the side frames, and a water blocking sheet or a resin plate is laid on the upper surface of the timber group to form a bottom frame. A concrete placing method, which is performed by placing a concrete in a space surrounded by the side frame and the bottom frame. 2. A formwork used as a bottom frame of a concrete formwork, in which a required number of timbers are arranged so as to have a width almost equal to the bottom width of the concrete skeleton, and laying on the upper surface of these timber groups. A concrete pouring formwork, characterized in that it comprises a water-stop sheet or a resin plate. 3. The side frames are arranged so as to face each other, a frame embedding member such as a reflector of an illuminator is arranged between the lower ends of the side frames, and a required number of square members are arranged on both sides of the body embedding member. , A waterproof sheet or a resin plate is laid on the upper surface of the square bar group to form a bottom frame, and a concrete is placed in the space surrounded by the side frame and the bottom frame. How to place a toe.