JPH0626196A - Anchoring method of concrete form and holding hardware used therefor - Google Patents

Abstract

PURPOSE:To surely fasten a form without requiring any skilled worker and to lessen the risk. CONSTITUTION:In an anchoring method of concrete forms 13 and 14 held by a plurality of bearing pipes 17 and 18, a holding hardware 10 bent at a specific angle or capable of bending at a specific angle is run in parallel with the bearing pipes 17 and 18 arranged in a horizontal direction connected at corners of the forms 13 and 14. The holding hardware 10 and bearing pipes 17 and 18 are fixed by means of form fastening hardwares 20 at a time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of fixing a concrete formwork and a metal holder used in the method.

[0002]

Forming a reinforced concrete structure requires a formwork. A method of fixing a mold according to a conventional example is shown in FIG. 6. As shown in the figure, a plurality of piers 52 are arranged at appropriate intervals around the molds 50 and 51, and a plurality of square pipes 53 are arranged in the lateral direction. 54 are arranged so as to cross each other at their ends. For example, by the separator and the fastener 55 of the separator introduced by Japanese Utility Model Publication No. 54-56431 and Japanese Utility Model Publication No. 55-154250. The square pipes 53 and 54 are fixed to the molds 50 and 51, and the intersections of the square pipes 53 and 54 are fixed by a chain 56, a turnbuckle and the like to fix the whole.

[0003]

However, in the method of fixing a concrete formwork according to the above-mentioned conventional example, there are many parts for fastening the formwork, and further, if a skilled worker does not perform the work, there is a risk of loosening on the way. There was a problem that the form was deformed. In addition, the corner of the pipe projects from the form, which is dangerous. The present invention has been made in view of the above circumstances, does not require a skilled worker, can securely clamp the formwork, and has a low risk, and a holding method used for the method of fixing the concrete formwork. The purpose is to provide hardware.

[0004]

A method according to the above-mentioned object.
The method for fixing a concrete formwork described is a method for fixing a concrete formwork held by a plurality of support pipes, in which the support pipes arranged in the horizontal direction connected at the corners of the formwork have a predetermined shape. A holding metal object bent at an angle or bendable at a predetermined angle is arranged, and the holding metal object and the support pipe are simultaneously fixed to the mold using a mold clamping tool. Further, the method is used in the method.
The holding hardware described is a holding hardware used along the support pipes of the corners of the concrete formwork fixed by a plurality of support pipes, and is composed of a strip-shaped plate material or a square pipe having a predetermined orthogonal length. Has been done. And the holding metal fitting according to claim 3 is a holding metal fitting which is used along a corner of a concrete formwork fixed by a plurality of support pipes along said support pipe, and two strip-shaped plate materials are used for the end part. It is configured to be rotatably connected by. In the above invention, the support pipe includes a square pipe and a round pipe.

[0005]

In the method for fixing a concrete formwork according to claim 1 and the holding metal objects according to claims 2 and 3, the corner portion of the support pipe for supporting the formwork from the outside is bent at a predetermined angle or at a predetermined angle. Since the holding metal object that can be bent is arranged and the holding metal object and the support pipe are simultaneously fixed to the mold using the mold clamping material, the corners of the support pipe are fixed by the holding metal object. . Here, since the corners of the support pipe are firmly connected, the corners of the support pipe intersecting at the corners are firmly connected. Particularly, in the holding metal article according to the second aspect, since the strip-shaped plate material or the square pipe having a predetermined length are orthogonal to each other, the support pipes are arranged at right angles. Further, in the holding hardware according to the third aspect, since the strip-shaped plate members are rotatably connected at a predetermined angle, the corner portion of the support pipe can be held at an arbitrary angle.

[0006]

EXAMPLES Next, with reference to the attached drawings, a concrete form fixing method and a holding metal therefor according to an example of the present invention will be described for understanding of the present invention. 1 is a perspective view showing a method for fixing a concrete formwork using a holding metal object according to the first embodiment of the present invention, FIG. 2 is a perspective view of the holding metal object, and FIG. 3 is a second view of the present invention. 4 is a perspective view of a holding metal object according to the embodiment of the present invention, FIG. 4 is a perspective view of a method of fixing a concrete formwork using the same holding metal object, and FIG. 5 is a plan view of the holding metal object according to the third embodiment of the present invention. .

As shown in FIGS. 1 and 2, a holding metal member 10 according to an embodiment of the present invention is composed of square pipes 11 and 12 having a predetermined orthogonal length and welded at the corner portions. When the holding hardware 10 is used, the piers 15 of the formwork 13 and 14,
Square pipes 17 and 18, which are an example of support pipes that come into contact with the outside 16 are arranged so that their corners do not project, and the holding hardware 10 is arranged thereon. Then, the projecting bolt portion 19 of the separator is located at the center of the square pipes 17 and 18 and the holding hardware 10, and the projecting bolt portion 19 is fitted with a mold frame fastening hardware 20 of a well-known structure. The holding hardware 10 by the cotter which is a product
And the square pipes 17 and 18 and the formwork 13 and 14 are fixed. This firmly holds the concrete formwork. The square pipes 11 and 12 may be appropriately provided with a plurality of openings (for example, a horizontally long circle) to reduce the weight.

FIG. 3 shows a holding metal member 22 according to a second embodiment of the present invention. As shown in the drawing, it is constructed by welding iron strip-shaped plate members 23 and 24 of a predetermined length at the corners at right angles. ing. The method of use is shown in FIG. 4, but since it is substantially the same as the method shown in FIG. 1, the same components are assigned the same reference numerals and detailed explanations thereof are omitted.

FIG. 5 shows a holding hardware 26 according to a third embodiment of the present invention. As shown in the drawing, an iron strip plate 27,
A hole is provided at the end of 28, and a caulking pin 29 (or a bolt and nut) is rotatably connected to the hole. Therefore, the angle can be freely changed by this, and its usage is the same as that shown in FIG. In the method shown in FIG. 4, the lower square pipe 17,
Although the protruding bolt portion 19 of the separator is disposed between the upper holding metal piece 18 and the holding metal piece 22 of the upper portion,
It is also possible to attach the holding metal member 22 or 26 by abutting on 8 and in this case, it is preferable to use a mold clamping member in a mold holding type. The support pipe can be held from the inside of the mold by using the above holding metal object, whereby the mold can be held more firmly.

[0010]

As is apparent from the above description, the method for fixing a concrete formwork according to claim 1 and the holding metal objects according to claims 2 and 3 are arranged along a support pipe that supports the formwork to form a square shape. Since the holding hardware with the connected parts is attached,
It has the following effects. Formwork can be performed without requiring a skilled worker such as a formworker, and the constructed formwork is hardly deformed or loosened. A chain, turnbuckle, etc. are not needed, and the number of parts is small. Since it is not necessary to project the corners of the support pipe to the outside, the projecting support pipe is not caught and the work is safe. In the conventional method, it was difficult to support the mold inside the bent portion by the support pipe, but in the method of the present invention, the mold can be fixed from the inside.

[Brief description of drawings]

FIG. 1 is a perspective view showing a method of fixing a concrete formwork using a holding hardware according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the holding metal object.

FIG. 3 is a perspective view of a holding member according to a second embodiment of the present invention.

FIG. 4 is a perspective view of a method for fixing a concrete formwork using the holding hardware.

FIG. 5 is a plan view of a holding metal piece according to a third embodiment of the present invention.

FIG. 6 is a perspective view showing a method of fixing a concrete formwork according to a conventional example.

[Explanation of symbols]

 10 Retaining Hardware 11 Square Pipe 12 Square Pipe 13 Formwork 14 Formwork 15 Pile 16 16 Pile 17 Square Pipe 18 Square Pipe 19 Protruding Bolt 20 Formwork Clamping Hardware 22 Retaining Hardware 23 Band-shaped Plate Material 24 Band-shaped Plate Material 26 Band-shaped Plate Material 27 Band-shaped Plate Material 28 Strip board 29 Crimping pin

Claims (3)

[Claims] 1. A method of fixing a concrete formwork held by a plurality of support pipes, wherein the support pipes arranged in the horizontal direction connected at the corners of the formwork are bent at a predetermined angle or A method of fixing a concrete formwork, characterized in that a holding metal object that can be bent at a predetermined angle is provided along the holding metal object and the support pipe are simultaneously fixed to the mold using a mold clamping material. 2. A holding metal object which is used along the support pipes at the corners of a concrete formwork fixed by a plurality of support pipes, and which comprises strip-shaped plate members or square pipes having a predetermined orthogonal length. A holding hardware used for fixing concrete formwork. 3. A holding metal piece used along the support pipes at the corners of a concrete formwork fixed by a plurality of support pipes, wherein two strip-shaped plate members are rotatably connected at their ends. A holding hardware used for a method of fixing a concrete formwork, characterized in that