JP2005248443A - Foundation form execution method and foundation form mounting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foundation form execution method which enables arrangement and fixture of lower ends of respective foundation forms along the same straight line, and to provide a foundation form mounting structure. <P>SOLUTION: The foundation form mounting structure is made up of foundation form receiving portions 3 arranged on an upper surface of a base concrete layer 1, the foundation forms 2 each having the lower end thereof fitted in the foundation support portion 3 along the straight line, and retaining plates 4 each for fixing the foundation form support portion 3 and the lower end of the foundation form 2 to the base concrete layer 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method for constructing a basic formwork and a mounting structure for the basic formwork. More specifically, the present invention relates to a method for constructing a foundation form placed on a concrete base in a foundation construction for housing construction and a mounting structure thereof.

  As shown in FIG. 11, the current general foundation construction for housing construction is made of metal on the upper surface of a discarded concrete layer (hereinafter referred to as “base concrete”) 102 formed by covering chestnut stone 101. The foundation concrete 103 is constructed by continuously starting up the foundation form 103 with a predetermined interval, pouring concrete into the foundation form 103 and curing.

  Therefore, the lower end of the foundation mold 103 is fixed by driving a nail 105 into the base concrete 102 through a nail hole 104 which is positioned on the upper surface of the base concrete 102 and then drilled in the lower end surface of the foundation mold 103. A separator 106 is attached to the upper end to hold the space between the basic molds 104, and the basic mold 103 is positioned by the support 107.

  Furthermore, as shown in FIG. 12, hook portions 108 are attached to the outer side surfaces of the basic molds 103 arranged at predetermined intervals, and square steel pipes 109 are fitted into the hook portions 108 so that the basic molds 103 are arranged in the same row. It is fixed in a planar shape.

  Moreover, there exists invention as shown in FIG. 13 as a construction method of this kind of basic formwork. In this construction method of the basic formwork, a piece-shaped positioning ruler 110 is installed on the discarded concrete by nail fastening, and the formwork 112 is dropped between the pieces 111 of the positioning ruler 110 to install the formwork 112. The configuration is used (for example, see Patent Document 1).

Japanese Patent Laid-Open No. 5-214734 (Example, FIG. 1)

  Here, in the general foundation work shown in FIG. 11 described above, in order to fix the lower end of the foundation formwork with the nail, it is required to drive the nail in a very cramped state and pinpoint with a hammer or the like. In addition to the extremely complicated work, there is a problem that when the failure occurs, the end of the basic formwork is struck and deformed.

  Further, when fixing the lower end of the basic formwork, if the lower end inner surface of the basic formwork arranged in a line is not fixed so as to be on the same straight line, it is forced by a square steel pipe as shown in FIG. Even if they are in the same row, if the foundation formwork is removed, there may be a step on the side of the foundation concrete.

  On the other hand, in the construction method of the basic form shown in FIG. 13 described above, a positioning ruler is fixed to the upper surface of the discarded concrete with a nail or the like at predetermined intervals, and the basic form is started together with this positioning ruler. When the concrete is placed inside, the positioning ruler is buried in the concrete, and a large amount of the positioning ruler is consumed, which causes a problem of a very high cost.

  In addition, since the foundation formwork interval is not constant and there are several types of interval lengths, a positioning ruler according to the interval length must be prepared, and the foundation concrete after construction is further divided at predetermined intervals, The bottom part is separated by a positioning ruler, and problems such as a decrease in strength due to corrosion of the positioning ruler are assumed.

  The present invention was devised in view of the above points, and provides a method for constructing a basic formwork and a structure for attaching the basic formwork that enables the lower ends of the basic formwork to be arranged and fixed on the same straight line. It is intended to provide.

  In order to achieve the above object, a method for constructing a foundation form according to the present invention includes a foundation form that is launched on a base concrete with a predetermined interval, and a foundation that includes a separator that maintains the interval between the foundation forms. In the method for constructing a mold, a step of arranging a one-span-length basic mold receiver on the base concrete, a step of arranging the lower ends of a plurality of basic molds in the same form in the basic mold receiver, A step of temporarily fixing the foundation mold receiving part and the bottom of the foundation mold at a fixed position on the base concrete.

  Here, the base formwork receiving part of 1 span length is arranged on the base concrete, and the bottom ends of the base formwork are arranged in a straight line by inserting the bottom ends of a plurality of base formwork into the basic formwork receiving part. It becomes possible to do. The foundation formwork can be easily constructed by temporarily fixing the foundation formwork receiving part and the bottom end of the foundation formwork to a fixed position on the base concrete with a holding plate and nails. In the case of removal, it is possible to remove the holding plate and the basic form at the same time by removing the holding plate from the base concrete.

  In addition, by inserting a 1-span-long basic formwork crown into the upper end of the basic formwork, it becomes possible to arrange the upper ends of multiple basic formwork on a straight line. Since the upper ends are arranged in a straight line, the inner surfaces of the respective basic molds are arranged in the same plane, and it is not necessary to attach a square steel pipe.

In order to achieve the above-mentioned object, the mounting structure of the foundation mold according to the present invention has a foundation mold that is set up on the base concrete with a predetermined interval, and holds the gap at the upper end of the foundation mold. In a basic formwork provided with a separator to be installed, on the base concrete, a base formwork receiving part having a one-span length in which lower ends of a plurality of basic formwork are arranged in a row,
The foundation mold receiving part and the lower end of the foundation mold are provided with fixing means that can be temporarily fixed at a fixed position on the base concrete.

  Here, it becomes a structure in which the lower ends of the foundation molds can be arranged on a straight line by inserting the lower ends of a plurality of foundation molds into the one-span length foundation mold receivers arranged on the base concrete. In addition, it is possible to easily start up the foundation mold by temporarily fixing the foundation mold receiver and the lower end of the foundation mold to a fixed position on the base concrete with the pressing plate and the nail.

  In addition, by adopting a structure in which a 1-span-length basic mold crown body is fitted to the upper end of the basic mold, the lower and upper ends of the basic mold are arranged in a straight line so that the inner surface of each basic mold Are in the same plane.

  In addition, in order to achieve the above object, the method for constructing the basic formwork according to the present invention is the construction of the solid foundation-integrated foundation formwork that is supported with the foundation formwork supported in the air by the foundation formwork receiving spacer. In the method, a step of placing a one-span-long basic formwork receiving part on a basic formwork receiving spacer arranged on a discarded concrete layer, and a plurality of basic formwork lower ends in the same form in the basic formwork receiving part Comprising the step of arranging in a.

  Here, the basic formwork receiving spacer is supported in the air by the basic formwork receiving spacer, and the lower ends of the basic formwork are arranged in a straight line by inserting the lower ends of a plurality of basic formwork into the basic formwork receiving part. It becomes possible to reduce the number of arrangement of the basic formwork receiving spacers.

  Further, in order to achieve the above-mentioned object, the foundation mold according to the present invention is arranged on the discarded concrete layer in the solid foundation integral foundation mold that is supported and raised in the air by the foundation mold receiving spacer. A one-span-length basic formwork receiving part disposed on the basic formwork receiving spacer and a plurality of basic formwork whose lower ends are fitted in the same form in the basic formwork receiving part.

  Here, the foundation formwork receiving part of 1 span length is supported by the foundation formwork receiving spacer arranged on the discarded concrete, and the bottoms of the plurality of foundation formwork are fitted into the foundation formwork receiving part. The lower end of the formwork can be arranged on a straight line.

  According to the construction method of the basic formwork and the mounting structure of the basic formwork of the present invention, it is possible to arrange the lower ends of the basic formwork on a straight line, and it is easy to fix on the concrete base without damaging the basic formwork. It is possible to improve the efficiency of construction of the basic formwork.

  In addition, the base formwork crown is fitted into the upper end of the base formwork, and the bottom and top ends of the base formwork are arranged in a straight line, so that the side of the base concrete after removing the base formwork has no steps. It is finished and does not require the installation of a conventional square steel pipe.

  In addition, in the construction of a solid foundation-integrated foundation formwork, the foundation formwork support part of one span length is supported by the foundation formwork support spacer, and the foundation formwork is arranged on the same line in the foundation formwork support part. As a result, the number of the base formwork receiving spacers for supporting each base formwork is not required as in the prior art, and the number can be greatly reduced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings to provide an understanding of the present invention.
FIG. 1 is a perspective view for explaining an example of a construction method for a basic formwork to which the present invention is applied, and FIG. 2 is a side cross-sectional explanatory view at an initial stage for starting up the basic formwork.

  The construction of the foundation mold shown here is inked to determine the starting position of the foundation mold 2 on the upper surface of the base concrete layer 1 formed by covering the chestnut A. A basic formwork receiving portion 3 having a length of 1 span is arranged along the marking line.

  As shown in FIG. 3, the basic formwork receiving part 3 has a cross-sectional recess having a width in which a steel plate having a span length, that is, a section length corresponding to the use place of the basic formwork, is fitted into the lower end of the basic formwork. It is bent into a shape.

  Therefore, after the bottom ends of the number of basic molds 2 corresponding to the length of one span are fitted in the basic mold receiving part 3 and arranged on a straight line, the basic form receiving part 3 is aligned with the marking line and pressed. A nail 7 is inserted into a nail hole 6 drilled in the holding plate 4 while holding the lower end of each foundation mold 2 and the foundation mold receiving portion 3 by the tip claw 5 of the plate 4 and a hammer or the like is placed on the base concrete layer 1. Is fixed by driving.

  Next, as shown in FIG. 4 and FIG. 5, a separator 8 for maintaining the interval between the basic molds 2 is attached to the upper end of the basic mold 2 at every predetermined interval, and a plurality of sheets of one span length are further attached. A square steel tube 9 is fitted into a hook 10 attached to the outer surface of the basic mold 2 on the outer surface of the basic mold 2 to forcibly make the basic mold 2 the same surface.

  Further, a support 11 with an adjuster is provided between the base concrete layer 1 and the upper end of the foundation mold 2 at predetermined intervals of the foundation mold 2, and supports the foundation mold 2 raised by the support 11. At the same time, the upper end position of the basic formwork 2 is adjusted by adjusting the adjuster.

FIG. 6 is a cross-sectional explanatory view for explaining an example of the mounting structure of the basic formwork to which the present invention is applied.
The mounting structure of the basic formwork shown here, as described in detail in an example of the construction method of the basic formwork to which the present invention is applied, is in the basic formwork receiving part 3 arranged on the base concrete layer 1, After the bottom ends of the number of foundation molds 2 corresponding to the length of one span are fitted and arranged in a straight line, the foundation mold receiving part 3 is aligned with the inked line, and each foundation is supported by the tip claw part 5 of the pressing plate 4. A nail 7 is inserted into a nail hole 6 drilled in the holding plate 4 in a state where the lower end of the mold 2 and the foundation mold receiving part 3 are pressed, and is fixed by being driven onto the base concrete layer 1 with a hammer or the like.

  And after inserting the basic mold frame crown body part 12 having the same length and cross-sectional shape as the basic mold frame receiving part to the upper end of each basic mold frame 2, the separators 8 are attached at predetermined intervals. is there. As a result, the upper and lower ends of the basic formwork 2 are arranged in a straight line by the basic formwork receiving part 3 and the basic formwork crown part 12, whereby the inner surfaces of the basic formwork 2 are arranged on the same surface. Therefore, it is not necessary to install a square steel pipe.

  Further, the foundation form 2 is raised by the support 11 and the adjuster is adjusted to adjust the upper end position of the foundation form 2 to complete the construction of the foundation form.

Next, FIG. 7 is sectional explanatory drawing which shows the other example of the attachment structure of the basic formwork of this invention.
The mounting structure of the foundation mold shown here includes a foundation mold receiving part 3 disposed on the upper surface of the base concrete layer 1, a foundation mold 2 having a lower end fitted into the foundation mold receiving part 3, and a foundation. It is composed of a mold receiving part 3 and a pressing plate 4 for fixing the lower end of the basic mold 2.

  Therefore, as described in detail in an example of the method for constructing the basic formwork, the basic formwork receiving part 3 is a steel plate having a span length, that is, a section length corresponding to the place where the basic formwork is used. The cross section is bent into a right-angled shape so as to have a width to fit the lower end of.

  In addition, the presser plate 4 is in a state where the lower end of each base mold 2 and the base mold receiver 3 are pressed by the tip claw portion 5 of the presser plate 4 as described in detail in the example of the construction method of the base mold. A nail 7 is inserted into a nail hole 6 drilled in the holding plate 4 and is fixed on the base concrete layer 1 by a hammer or the like.

  Furthermore, with respect to the upper end of each basic mold 2, a basic mold crown body 12 having the same length and cross-sectional shape as the basic mold receiver is fitted, and the separator 8 is attached at predetermined intervals. The upper and lower ends of the basic formwork 2 are arranged on a straight line by the basic formwork receiving part 3 and the basic formwork crown body part 12, whereby the inner surface of each basic formwork 2 is arranged on the same plane, No need to install a square steel pipe.

  Further, a support 11 with an adjuster is provided between the base concrete layer 1 and the upper end of the foundation mold 2 at every predetermined interval of the foundation mold 2 and is installed on both sides of the foundation mold 2 that has been raised. The base mold 2 raised by the support 11 is supported and the length of the support 11 is adjusted by adjusting the adjuster, thereby adjusting the upper end position of the basic mold 2.

  Next, FIG. 8 shows a mounting structure of a base form by combining the separate 8 on the base concrete layer, and in order to maintain the interval of the base form receiving part 3 of 1 span length on the base concrete layer 1. The base 8 is fixed to the base 8 with nails or the like, and a base mold receiving part 3 having a cross-section having a lower end width of the base form 2 bent into a right-angled shape is fitted on both sides of the separate 8. After a number of basic molds 2 corresponding to the length of one span are arranged on a straight line on 3, a basic mold crown body 12 is fitted to the upper end of the basic mold 2, and separators 8 are attached at predetermined intervals. Thus, the upper and lower ends of the basic formwork 2 are arranged on a straight line by the basic formwork receiving part 3 and the basic formwork crown body part 12, and thereby the inner surfaces of the basic formwork 2 are arranged on the same surface. Of the square steel pipe With it is not required.

  By combining the separator 8 and the basic formwork receiving part 3 as described above, the basic formwork receiving part 3 can be easily positioned and spaced, and the number of separators to be used is also a 1-span basic formwork receiving part. However, it is possible to obtain a superior effect in terms of workability and economy with the conventional mounting structure in which one or two pieces are used for each basic formwork as in the conventional case.

FIG. 9 and FIG. 10 show an example of a method for constructing a solid foundation-integrated foundation formwork to which the present invention is applied and an attachment structure of the foundation formwork.
Here, foundation mold receiving spacers 14 are arranged on the discarded concrete layer 13 at predetermined intervals, and the foundation mold receiving part 3 having a length of 1 span is inserted into the groove-shaped anchoring part 15 on the foundation mold receiving spacer 14. Is to be erected.

  Then, after the bottom ends of the number of base molds 2 corresponding to the length of one span are fitted in the base mold receiver 3 and arranged in a straight line, the base mold crown 12 on the upper end of the base mold 2. And the separators 8 are attached at predetermined intervals, so that the upper and lower ends of the basic mold 2 are arranged in a straight line by the basic mold receiving part 3 and the basic mold crown 12, thereby each basic mold The two inner surfaces are arranged on the same surface, so that it is not necessary to attach a square steel pipe.

  Solid foundations can be integrally punched by placing concrete B in the foundation mold 2 that has been started up in this manner. Therefore, after the concrete B is cured, the foundation mold 2 can be easily recovered by removing the foundation mold receiver 3.

  Here, in this embodiment, one basic formwork is supported on the air by the basic formwork receiving spacer, but in addition to this, both basic formwork is supported on the air by the basic formwork receiving spacer. There are also various types of basic form receiving spacers for one or both types, and the basic form receiving spacer of the most suitable mechanism is adopted depending on the situation.

  In addition, there is a case where the base formwork crown body part may not be fitted into the upper end of the base formwork arranged in a line in the base formwork receiving part. In this case, a similar effect can be obtained by providing a square steel pipe. It is something that can be done.

  The basic formwork receiving section shown here does not necessarily have to be formed into a groove shape or a right-angled cross section, and any shape can be used as long as it is fixed so that the bottom end of the basic formwork is not displaced. It doesn't matter.

  In addition, the basic form frame receiving part and the basic form frame crown part in the construction method of the above basic form and the mounting structure of the basic form do not necessarily need to be formed of a steel plate. For example, a light alloy such as aluminum or a hard alloy It can be made of any material such as plastic, but it should be used every time the basic formwork is installed, and steel plates with excellent durability and strength are used because they are susceptible to impact from hammers. It is preferable.

  Further, the fixing method of the foundation mold receiving portion and the bottom of the foundation mold in the foundation mold mounting method and the foundation mold mounting structure described above is not necessarily a fixing means using a holding plate and a nail, such as a hammer. As long as it can be driven easily without any trouble, for example, it may be a means for providing and fixing a projection piece having a nail hole drilled in advance in the basic mold receiving groove portion.

  In the construction method of the basic formwork to which the present invention is applied, the bottom ends of the respective basic formwork are arranged in a straight line by fitting the lower ends of the respective basic formwork in a line in the basic formwork receiving portion, and then the foundation By fixing the mold frame receiving groove portion at a fixed position, it is possible to easily start up each basic mold frame without any positional deviation.

  In addition, by fixing the lower end of the basic formwork receiving part and the basic formwork indirectly to the upper surface of the base concrete with a presser plate, unlike the conventional means for directly fixing the lower end of the basic formwork with nails. It can be driven with a hammer or the like without hindrance, and can be attached and detached without damaging the basic formwork.

  In addition, by inserting the base formwork crown into the upper end of the base formwork, the upper end of each base formwork is arranged in a straight line, so that the inner surface of each base formwork is on the same plane with no displacement. Formed. Accordingly, there is no need to provide a square steel pipe on the outer surface of the foundation frame, and the working efficiency is greatly improved.

It is a perspective view for demonstrating an example of the construction method of the basic formwork to which this invention is applied. It is side surface explanatory drawing in the initial stage for raising the basic formwork in FIG. It is explanatory drawing which shows an example of the basic formwork receiving part in the construction method of the basic formwork to which this invention is applied. It is plane explanatory drawing which shows the last step of the construction method of the basic formwork to which this invention is applied. It is front explanatory drawing in FIG. It is side surface sectional drawing for demonstrating an example of the attachment structure of the basic formwork to which this invention is applied. It is side surface sectional drawing for demonstrating the other example of the attachment structure of the basic formwork to which this invention is applied. It is explanatory drawing which shows an example which combined the basic mold receiving part and the separator in the attachment structure of the basic mold to which this invention is applied. It is sectional explanatory drawing which shows an example of the attachment structure of the solid foundation integrated foundation formwork to which this invention is applied. It is front explanatory drawing in FIG. It is side surface sectional drawing for demonstrating an example of the construction method of the conventional foundation formwork. It is front explanatory drawing in FIG. It is side surface sectional drawing for demonstrating the other example of the construction method of the conventional foundation formwork.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base concrete layer 2 Foundation mold 3 Foundation mold receiving part 4 Holding plate 5 Tip nail | claw part 6 Nail hole 7 Nail 8 Separator 9 Square steel pipe 10 Hook 11 Support 12 Foundation mold frame crown part 13 Abandoned concrete layer 14 Foundation mold Receiving spacer 15 mooring section

Claims (8)

In the method of constructing a basic formwork provided with a base formwork that is set up on the base concrete with a predetermined interval and a separator that holds the interval of the basic formwork,
Placing a one-span-length foundation mold receiving part on the base concrete;
Arranging the lower ends of a plurality of foundation molds in the same form in the foundation mold receiving part;
A method for constructing a base form, comprising a step of temporarily fixing the base form receiving part and the bottom end of the base form in place on a base concrete. The construction method for a foundation mold according to claim 1, wherein the temporary fixing between the foundation mold receiver and the lower end of the foundation mold is performed by a pressing piece fixed on the base concrete with a nail. The foundation formwork construction method according to claim 1 or 2, wherein a one-span-length foundation form crown part is inserted into an upper end of the foundation formwork. In the construction method of a solid foundation integrally punched foundation formwork that supports the foundation formwork in the air with a foundation formwork receiving spacer,
A step of placing a one-span-length foundation mold receiving part on a foundation mold receiving spacer arranged on the discarded concrete layer;
A method for constructing a basic form, comprising a step of arranging the lower ends of a plurality of basic forms in the same form in the basic form receiving part. In a basic formwork comprising a base formwork set up at a predetermined interval on the base concrete, and a separator installed to hold the interval at the upper end of the base formwork,
On the base concrete, a 1-span-length basic formwork receiving portion in which the lower ends of a plurality of basic formwork are arranged in the same row,
A mounting structure for a base form, characterized in that the base form receiving part and the bottom end of the base form are provided with fixing means that can be temporarily fixed in place on the base concrete. The mounting structure for a base form according to claim 4, wherein the fixing means includes a pressing piece fixed on the base concrete by a nail. The base formwork attachment structure according to claim 4 or 5, wherein a base form crown part having a length of 1 span is inserted into an upper end of the base formwork. In a solid foundation integrated foundation formwork that supports the foundation formwork in the air with a foundation formwork receiving spacer,
A one-span-length basic formwork receiving part arranged on a basic formwork receiving spacer arranged on the discarded concrete layer;
A mounting structure for a basic form, comprising a plurality of basic forms whose lower ends are fitted in the same form in the basic form receiving part.

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