JPH10102770A - Leveling metal fixture and leveling construction method of perpendicular form - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a leveling piece and a leveling method to easily and rapidly perform the work to arranged and erect a group of perpendicular forms in which a wall body or the like is placed on an uneven concrete surface as placed. SOLUTION: A sash on which a perpendicular form is loaded is installed on a concrete floor in a longitudinal row along the installation line of a group of perpendicular forms. Leveling of a top surface of each leveling piece is performed by appropriately driving the leveling pieces in which claw-shaped leg parts 2 (2A, 2B) are projected on the lower side of a plate-shaped body part 1 of the size sufficient to receive and support a bottom side of the perpendicular form with the intervals narrower than the width of the perpendicular form on the upper surface, and the group of the perpendicular forms are transversely erected across the pieces.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical formwork group for placing walls and the like on a concrete floor surface which has been unevenly peeled off, with the bottom surfaces thereof being aligned side by side with the same level surface. The present invention relates to a metal fitting for leveling a vertical formwork and a leveling method for easily and quickly leveling work.

[0002]

2. Description of the Related Art FIGS. 8 and 9 schematically show a conventional leveling method for constructing a formwork for placing a wall on a rough concrete floor surface. Although the concrete floor surface F that has been struck away is of course horizontal as a whole as a whole floor surface, it is generally uneven when viewed partially. As shown exaggeratedly in FIG. 8, on this uneven concrete floor surface F, a group of vertical formwork 50 for placing a wall body is erected side by side on the same level surface. Conventionally, a wooden wedge 51 or a wooden piece 52 has been used.

According to the method, a large number of wedges 51 having various heights and inclination angles are prepared in advance so as to correspond to the degree of unevenness of the concrete floor surface which differs from place to place. Also, at the construction site of the formwork, as shown in FIG.
A mark v is marked at the same height position on each vertical form 50, and a level thread w for leveling is stretched and placed. Then, while carrying a large number of the prepared various types of wedges 51, the worker checks whether the mark mark v of the vertical form 50 leaned on the uneven concrete floor F matches the level thread w. Find out what.

At a position where the position of the mark mark v is lower than the level thread w, a wedge 5 of a size corresponding to the deviation dimension is provided.
1 or cut out a wedge 51 or a piece of wood 52 of a size suitable for this part at the work site, and drive the wedge 51 between the bottom surface of the vertical formwork 50 and the concrete floor F, The vertical form 50 is lifted until the mark v and the level thread w coincide with each other. In addition, a troublesome method of stacking and inserting a plurality of wedges 51 and pieces of wood 52 in places with a large gap or the like has been adopted. Alternatively, a method has also been adopted in which the vertical formwork 50 is not placed directly on the concrete floor surface, but is laid in a column on the floor surface and arranged on a pier fixed by nailing.

[0005]

However, the above-mentioned conventional method has some disadvantages as listed below. (A) It takes much effort and time to prepare many wedges and pieces of wood of various sizes. (B) It takes time and experience to select the best wedges and wood chips according to the unevenness of the concrete surface. (C) Since the contact surface of the wedge with the vertical form is inclined,
The formwork is lifted by an amount corresponding to this inclination, and the gap between the concrete floor surface and the bottom surface of the vertical formwork is increased accordingly. (D) Therefore, extra work and time are required for the work of removing the hardened concrete flowing out of the gap. (E) Removal of wedges and pieces of wood after placing concrete is also troublesome.

[0006]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a vertical formwork group for placing walls and the like on a concrete floor surface having unevenness of release, standing on the same level surface. The present invention provides a leveling metal fitting and a leveling method for a vertical formwork to facilitate and speed up the work.

[0007]

Means for Solving the Problems To achieve the above-mentioned object, a horizontal mounting bracket for a vertical form according to the present invention is provided with a vertical wall for placing a wall or the like on a concrete floor surface which is separated and uneven. This is to facilitate and speed up the work of arranging the formwork groups on the same level side by side, including post-processing work after casting, and support the bottom of the vertical formwork. The main body 1 has a plate-like shape and a claw-shaped leg 2 protruding below the main body 1. The claw-shaped leg 2 may be formed integrally with the main body 1 by cutting and raising. Further, a hanging piece 3 may be connected to one side of the main body 1, and a nail hole 4 may be provided on the hanging piece 3 to fix a contact state of the vertical form to a side surface of a pier serving as a mounting table. Further, the leveling method according to the present invention includes a step of laying a pier B on which a vertical form is placed on a concrete floor in a cascade along an installation line of a group of vertical forms, and A plurality of leveling metal fittings A having claw-shaped legs 2 protruding from the lower side of a plate-shaped main body 1 large enough to receive and support are prepared. The step of driving each claw-shaped leg 2 on the upper surface of the crosspiece B at a distance smaller than the width dimension and the degree of driving of each leveling metal fitting A are adjusted to adjust the top surface of each metal fitting. And a step of erecting a vertical form between these fittings in a straddle-like manner.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. 1 and 2
FIG. 2 shows a perspective view and a longitudinal sectional view of the leveling metal fitting A1 of this embodiment viewed from the back side in a state of being turned sideways. or,
FIG. 4 shows a concrete floor surface F with unevenness as it is released.
Above, a state in which the method of the present invention is applied to an operation of vertically arranging a group of vertical forms 50 for placing a wall body on the same horizontal plane is shown as a partial longitudinal sectional view. 50a and 50b in the figure are
A plywood panel constituting the vertical formwork 50 and a reinforcing bar thereof.

The leveling bracket A1 is large enough to receive and support the bottom surface of the vertical mold 50, in this embodiment, 60 mm.
A plate-shaped main body 1 of 40 mm square and two claw-shaped legs 2A and 2B protruding below the main body 1 at a predetermined interval.
And a hanging piece 3 provided continuously on one side in the longitudinal direction of the main body. The leveling metal fitting A1 is obtained by simply punching and bending the rectangular metal plate 10 shown in FIG.
It can be produced very efficiently.

That is, the main body 1 occupying the right side of the fold e of the rectangular metal plate 10 has a claw-shaped leg 2A on its left side.
Is formed in a substantially V-shaped notch a so as to be bent in a cut and raised shape, and a fold b is formed between both ends of the notch a. The point of the cut a is rounded for work safety.
A substantially c-shaped cut c is provided on the right side of the main body 1 in order to form the claw-shaped leg 2B in a cut-and-raised shape, and a fold d is formed between both ends of the cut a. In addition, both cuts a
And c share a cut at each tip, so that the tip of the tip of the claw-shaped leg 2A is one,
The pointed end of the claw-shaped leg 2B is divided into two parts.

A nail hole 4 is provided near the lower end of the hanging piece 3 which also serves to fix the leveling bracket A1 and reinforce it.
Is provided.

Next, the operation of the above configuration will be described with reference to FIGS. First, the required number of fixed-size piers B is laid in a row on the concrete floor surface F having unevenness due to punching, where the vertical formwork 50 is arranged in a row, and nails are driven into the floor. Fix to the surface. In this state, as shown in FIG. 5, the individual crosspieces B are generally slightly inclined with respect to the horizontal plane XX according to the degree of unevenness of the concrete floor surface F. .

Therefore, in this state, the vertical form 50
If the group was set up side by side sequentially, each vertical form 5
Of course, 0 cannot be aligned on the same level plane. Therefore, it is necessary to perform leveling by relying on the level yarn w according to the related art.

To do this, first, along the entire length of the group of piers B arranged in tandem, along the upper surface of the pier B,
The level thread w is stretched as low as possible (not shown).
This is the clearance g between the bottom of each vertical form 50 and the pier B.
(See FIGS. 4 and 5) as much as possible. It is preferable that this gap g is suppressed to about 13 mm or less.

Next, on the upper surface of the cascaded crosspieces B, the horizontal mounting brackets A1 are temporarily arranged at intervals smaller than the horizontal width of the vertical formwork 50. This is to allow one vertical form 50 to be supported by the two horizontal mounting brackets A1 and A1. If the vertical form 50 has a standard size, the arrangement interval may be determined to be an interval suitable for it.

After the provisional placement is completed, or while the leveling brackets A1 are arranged at predetermined intervals, each leveling bracket A1
1 are sequentially driven into the upper surface of the pier B with a hammer, and the claw-shaped legs 2A and 2B are cut into the pier B until the respective top surfaces coincide with the height position of the level thread w.

If the depth of the leveling bracket A1 is small or the material of the pier B is too soft, concrete is cast and the weight is applied to the vertical form 50 via the form fitting metal fitting. Is also transmitted, the claw-shaped legs 2A, 2
B may sink into the pier B due to the weight.
In order to eliminate this fear, a peg 5 may be driven into the crosspiece B through the nail hole 4 of the vertical piece 3 as shown in FIG.

This series of operations does not require any skill, and the leveling of the top surface of each leveling bracket A1 can be completed very simply and quickly. Then, on the upper surface of the leveling metal fittings A1 after finishing the leveling, as shown in FIG. 5, the vertical formwork 50 is erected sequentially side by side, and if the necessary support is provided, concrete casting is performed. The assembly of the formwork is completed.

In the case where the vertical formwork 50 is used for driving a pillar, a level yarn is not stretched, and the vertical formwork 50 is directly or directly transferred between the two horizontal mounting brackets A1 and A1. Leveling may be performed by applying a level through a tree.

With the formwork assembled, the leveling bracket A
Since the upper surface of 1 is horizontal unlike the conventional wedge 51 (see FIG. 7), the gap g between the bottom surface of the vertical formwork 50 and the concrete floor F should be kept to a necessary minimum of about 13 mm or less. Can be done.

Therefore, when concrete is poured into the formwork, the aggregate does not act to close the gap g, and a large amount of concrete may leak from the gap g as in the prior art. Is almost eliminated. Therefore, the troublesome work of removing the leaked concrete mass required in the prior art is almost unnecessary. Also, even if so-called "slags" containing no aggregate enter the gap g and solidify, the concrete attached to the pier B is naturally removed together with the pier B when the vertical form 50 and the pier B are removed. It will be stripped.

FIG. 6 shows a leveling bracket A2 of the second embodiment.
Is shown in a state of being developed on a rectangular metal plate. The difference from the first embodiment is that the shape of the claw-shaped leg 2A is slightly different.

FIG. 7 shows a leveling bracket A3 of the third embodiment.
Is shown in a state of being developed on a rectangular metal plate. First and second
The difference from the embodiment is that the claw-shaped legs 2A and 2B form a triangle.

In the above configuration, the object of the present invention is achieved even if the detailed structure is appropriately changed in design. For example,
The shapes of the claw-shaped legs 2A and 2B are not limited to those shown in the drawings. Any shape may be used as long as it can be easily driven into the crosspiece B while receiving appropriate driving resistance.

[0025]

As is apparent from the above description, according to the leveling bracket and leveling method of the vertical form according to the present invention, various excellent effects in practical use as listed below can be obtained. In addition, compared with the conventional technique using a wedge for leveling, the construction cost required for placing a wall or a pillar can be remarkably reduced. (A) The leveling bracket can be mass-produced at extremely low cost. (B) Leveling work can be performed easily and quickly even by a beginner. (C) A lot of labor and time are not required for preparing wedges of various sizes. (D) The effort and experience for selecting the optimal wedge for each vertical form according to the unevenness of the concrete surface is not required. (E) The operator does not need to carry a bulky wedge. (F) Since the gap between the concrete floor surface and the bottom surface of the vertical formwork can be minimized, the troublesome work of removing the concrete that has flowed out of this gap becomes almost unnecessary. (G) The work of removing the wedge after placing the concrete is not required.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, showing a leveling metal fitting from a back side in a state of being turned sideways.

FIG. 2 is a longitudinal sectional view of the leveling metal fitting according to the first embodiment;

FIG. 3 is a plan view showing a state where the leveling metal fitting is flattened;

FIG. 4 is a partially enlarged vertical cross-sectional view illustrating the leveling method according to the first embodiment.

FIG. 5 is a partial front view illustrating the leveling method.

FIG. 6 is a view corresponding to FIG. 3, showing a leveling metal fitting of a second embodiment according to the present invention.

FIG. 7 is a view corresponding to FIG. 3, showing a leveling metal fitting of a third embodiment according to the present invention.

FIG. 8 is a diagram corresponding to FIG. 5, showing a conventional example.

FIG. 9 is a diagram corresponding to FIG. 4;

[Explanation of symbols]

 A1 to A3 Leveling bracket B Crosspiece F Concrete floor to be separated 1 Main body 2 (2A, 2B) Claw-shaped leg 3 Hanging piece 4 Nail hole 5 Nail a, c cut b, d, e fold g gap 50 Vertical formwork 51 Wedge 52 Wood piece

Claims (4)

[Claims] 1. A post-treatment after casting, in which vertical formwork groups for casting walls and the like are arranged side by side on a concrete floor surface which has been unevenly released and aligned with the same level surface. The main body 1 has a plate-like shape large enough to receive and support the bottom surface of the vertical formwork, and is provided on the lower side of the main body 1 for easy and quick equalization including work. A metal fitting for leveling a vertical formwork, comprising a claw-shaped leg 2. 2. The claw-shaped leg portion 2 is formed by cutting and raising.
The metal fitting for leveling out a vertical formwork according to claim 1, wherein the metal fitting is formed integrally with the main body portion 1. 3. A hanging piece 3 is continuously provided on one side of the main body 1, and a nail hole 4 for fixing a contact state to a side surface of a pier serving as a mounting table of a vertical formwork is fixed to the hanging piece 3. 3. The metal fitting for leveling a vertical formwork according to claim 1, wherein the metal fitting is provided. 4. A step of arranging piers B on which a vertical formwork is to be placed on a concrete floor in a row along the installation line of the vertical formwork group, and supporting and supporting the bottom surface of the vertical formwork. A leveling bracket A having a claw-shaped leg 2 protruding below a main body 1 in the shape of a plate-like piece having a size.
Are prepared, and these brackets are separated from each other by a distance smaller than the width of the vertical form, and each claw-shaped leg 2 is connected to the crosspiece B.
And adjusting the degree of insertion of each leveling metal fitting A so that the top surface of each metal fitting is at the same level, and a vertical form is straddled between these metal fittings. A vertical forming method of a vertical formwork.