JP2010216196A - Anchor bolt installation method for continuous footing, and anchor bolt-tool set - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an anchor bolt installation method for a continuous footing, and an anchor bolt-tool set that can secure the installation accuracy of anchor bolts. <P>SOLUTION: An anchor bolt assembly 1 connecting the lower parts of a plurality of anchor bolts 2 by a connecting plate 3 is put in a form in the middle of or after reinforcement arrangement. Rising piece parts 7 on both sides of a fixed plate 5 of upward channel shape are temporarily fixed to the inner side faces of the form by screw members 10 inserted through oblong holes 9 of the rising piece parts. The upper ends of the anchor bolts 2 are inserted through the oblong holes 8 in a fixed plate bottom plate part 6 and holes 12 of an upper adjusting plate 11 arranged on the fixed plate 5, and both plates are clamped between upper and lower nuts 13, 14 screwed to the anchor bolts 2. The fixed plate 5 is adjusted in position within a range of the rising piece part oblong holes 9, and the anchor bolts 2 are adjusted in position within a range of bottom plate part oblong holes 8 to property fix the fixed plate 5 to the form 4 and to tighten the anchor bolts 2 with the nuts 13, 14. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an anchor bolt installation method for a fabric foundation in which anchor bolts are installed when a reinforced concrete fabric foundation is constructed by placing concrete in a formwork, and an anchor bolt and jig set used for the installation method. About.

  As a method of installing anchor bolts when constructing a reinforced concrete fabric foundation, prepare a plywood with holes through which the anchor bolts are inserted, and sandwich the plywood with upper and lower nuts screwed into the anchor bolts. In general, a method of positioning an anchor bolt in a suspended state in a mold frame via a plywood by spanning it to the top end of the rising mold frame of the fabric foundation (for example, Patent Documents 1 and 2). That is, in this method, the anchor bolt is positioned depending on the accuracy of the formwork. When a metal foam is used as the rising form frame, a steel ruler is prepared in place of the plywood, and the anchor bolt is positioned in a suspended state with the steel ruler.

JP-A-5-287754 Japanese Patent No. 3699548

  However, the above-mentioned conventional method can be applied if the anchor bolt is relatively light (in the case of a small diameter of 12 mm or less other than the main pillar), but the anchor bolt diameter is 16 mm or more, the main pillar, etc. In this case, it is difficult to say that sufficient installation accuracy can be secured.

  In addition, when the member that engages with the anchor bolt is a panel member in which the outer wall frame and the column are integrated, if the left and right column base hole of the panel member and the anchor bolt do not coincide with each other, the construction cannot be performed.

  These problems can be solved when using metal foam as a rising formwork for fabric foundations in prefabricated houses, etc., but metal foam is not commonly used in general construction properties. There is concern about an increase in frame costs.

  The object of the present invention is to be used for a cloth foundation anchor bolt installation method and its installation method capable of ensuring the installation accuracy of the anchor bolt without depending on the accuracy of erection of the mold even when a wooden formwork is used. It is to provide anchor bolt and jig set.

An anchor bolt installation method for a fabric foundation according to the present invention is a method for installing an anchor bolt when a concrete foundation is constructed by placing concrete in a formwork, and a plurality of anchor bolts in a standing posture. A process of assembling an anchor bolt assembly in which the anchor bolts are coupled to each other by a connecting plate at a lower part, a process of preparing an upper adjustment plate having a hole through which an upper part of each anchor bolt of the anchor bolt assembly is inserted, and an opposite of the mold Anchor bolts that are formed in an upward groove shape with widths in contact with the standing piece portions on both sides on the inner side surface, have a screw-fixing elongated hole extending laterally on the standing piece portions on both sides, and extend in the groove width direction on the bottom plate portion A step of preparing a fixing plate having a long hole for insertion, a step of inserting the anchor bolt assembly into the mold during or after bar arrangement, and the fixing plate A process of temporarily fixing the standing piece portions on both sides to the opposing inner side surfaces of the mold by means of screw members inserted into the screw-fixing long holes and arranged inside the mold to match the target anchor core The anchor bolt assembly in the mold is lifted and the upper ends of the anchor bolts are inserted into the anchor bolt insertion elongated holes of the fixing plate, and the anchors are inserted into the holes of the upper adjustment plate above the fixing plate. A process of inserting a bolt and fixing the fixing plate and the upper adjustment plate between upper and lower nuts screwed into the anchor bolt, adjusting the position of the fixing plate in the range of the screw fixing long hole, and fixing the anchor bolt The position is adjusted within the range of the long hole for inserting the anchor bolt, and the fixing plate is fixed to the formwork and the unscrewed by the upper and lower nuts. Comprising the steps of performing a tightening of Boruto, and the process of pouring concrete into the mold within.
According to the anchor bolt installation method of this fabric foundation, the position of the fixing plate temporarily fixed to the inner surface of the formwork is adjusted in the horizontal direction within the range of the long hole for screwing the standing piece, and the anchor bolt Is adjusted in the horizontal direction within the range of the long hole for anchor bolt insertion in the bottom plate portion of the fixed plate, and the anchor bolt is positioned at a predetermined position in the mold. Therefore, even when a wooden material is used as the mold, the installation accuracy of the anchor bolt can be ensured without depending on the dimensions of the mold itself and the accuracy of installation.

The anchor bolt / jig set of the present invention is an anchor bolt / jig set installed in the process of constructing a reinforced concrete cloth foundation by placing concrete in a formwork, and has a plurality of standing anchors. An anchor bolt assembly in which the bolts are connected to each other by a connecting plate at the bottom, and an upward groove shape in which the standing pieces on both sides are in contact with the opposing inner surface of the formwork, and is formed horizontally on the standing pieces on both sides. A fixed plate having a long hole for screwing extending in the direction and a long hole for inserting an anchor bolt extending in the groove width direction in the bottom plate portion, and a hole through which an upper portion of each anchor bolt of the anchor bolt assembly is inserted An upper adjustment plate disposed on the fixed plate, and upper and lower screwed into each anchor bolt and sandwiching the fixed plate and the upper adjustment plate in an overlapping state And a nut.
According to this anchor bolt and jig set, even when using a wooden formwork, it is not dependent on the dimensions of the formwork itself or the accuracy of erection by applying the anchor bolt installation method of the cloth foundation of the present invention. The installation accuracy of the anchor bolt can be ensured.

An anchor ball installation method for a fabric foundation according to the present invention is a method for installing an anchor bolt when a concrete foundation is constructed by placing concrete in a formwork, and a plurality of anchor bolts in a standing posture. A process of assembling an anchor bolt assembly in which the anchor bolts are coupled to each other by a connecting plate at a lower part, a process of preparing an upper adjustment plate having a hole through which an upper part of each anchor bolt of the anchor bolt assembly is inserted, and an opposite of the mold Anchor bolts that are formed in an upward groove shape with widths in contact with the standing piece portions on both sides on the inner side surface, have a screw-fixing elongated hole extending laterally on the standing piece portions on both sides, and extend in the groove width direction on the bottom plate portion A process of preparing a fixing plate having a long hole for insertion, a process of inserting the anchor bolt assembly into the mold during or after bar arrangement, and the fixing plate In the interior of the mold to match the target anchor core, and temporarily fixing the standing pieces on both sides to the opposing inner surface of the mold by a screw member inserted through the slotted screw holes; and The anchor bolt assembly in the mold is lifted, and the upper end of each anchor bolt is inserted into the long hole for inserting the anchor bolt in the fixing plate, and the anchor bolt is inserted into the hole of the upper adjustment plate above the fixing plate. Inserting the fixing plate and the upper adjusting plate between the upper and lower nuts screwed into the anchor bolt, adjusting the position of the fixing plate in the range of the screw-fixing long hole, and the position of the anchor bolt Adjusting the position of the anchor bolt in the range of the long hole for inserting the anchor bolt, fixing the fixing plate to the mold and fixing the anchor with the upper and lower nuts. Because it was a method including the process of tightening bolts and the process of placing concrete in the mold, even when using a wooden mold, it does not depend on the dimensions and accuracy of the mold itself, The installation accuracy of the anchor bolt can be secured.
The anchor bolt / jig set of the present invention is an anchor bolt / jig set installed in the process of constructing a reinforced concrete cloth foundation by placing concrete in a formwork, and has a plurality of standing anchors. An anchor bolt assembly in which the bolts are connected to each other by a connecting plate at the bottom, and an upward groove shape in which the standing pieces on both sides are in contact with the opposing inner surface of the formwork, and is formed horizontally on the standing pieces on both sides. A fixed plate having a long hole for screwing extending in the direction and a long hole for inserting an anchor bolt extending in the groove width direction in the bottom plate portion, and a hole through which an upper portion of each anchor bolt of the anchor bolt assembly is inserted An upper adjustment plate disposed on the fixed plate, and upper and lower screwed into each anchor bolt and sandwiching the fixed plate and the upper adjustment plate in an overlapping state Since it is provided with a nut, it can be applied to the method for installing anchor bolts of the fabric foundation of the present invention, and even when using a wooden formwork, the anchor bolt does not depend on the dimensions of the formwork itself or the accuracy of installation. Installation accuracy can be secured.

It is a perspective view of the anchor bolt assembly used for one Embodiment of the anchor bolt installation method of the fabric foundation of this invention. It is explanatory drawing of the process in which the anchor bolt assembly is put in a formwork. It is a perspective view of the fixed plate used for this anchor bolt installation method of a cloth foundation. It is explanatory drawing of the process which arranges the fixed plate in a formwork. It is a perspective view of the upper adjustment plate used for this anchor bolt installation method of a cloth foundation. It is explanatory drawing of the process which arrange | positions the same upper adjustment plate on the said fixed plate. It is explanatory drawing of the last process of anchor bolt position adjustment.

  An embodiment of the present invention will be described with reference to FIGS. This method of installing anchor bolts on a fabric foundation is a method of installing anchor bolts when a concrete foundation is constructed by placing concrete in a formwork. In this anchor bolt installation method, first, the anchor bolt assembly 1 shown in FIG. 1 is assembled. In this anchor bolt assembly 1, a plurality of (in this case, two) anchor bolts 2 in a standing posture are coupled to each other by a connecting plate 3 at the bottom. A fixing plate 18 is attached to the lower end of each anchor bolt 2. The anchor bolt 2 is a double-cut bolt having male screw portions 2a and 2b at the upper and lower ends, and is connected to the connecting plate 3 between the upper and lower two nuts 17 screwed to the male screw portion 2a at the lower end. Is carried out together with the fixing plate 18.

  Next, the anchor bolt assembly 1 is placed in the mold interior space sandwiched between the molds 4 and 4 arranged opposite to each other as shown in FIG. The mold 4 is composed of, for example, a plywood 4a called a control panel and upper and lower piers 4b.

  Next, the fixing plate 5 shown in FIG. 3 is prepared. The fixed plate 5 has an upward groove shape composed of a bottom plate portion 6 and standing piece portions 7 provided on both sides thereof, and the width of the standing piece portions 7 on both sides is in contact with the opposed inner side surfaces of the two mold frames 4 and 4. Is formed. A plurality of elongated holes 8 for inserting anchor bolts extending in the groove width direction are formed in the bottom plate portion 6 in correspondence with the number and arrangement intervals of the anchor bolts 2. In addition, the standing piece portions 7 on both sides are respectively formed with long holes 9 for screwing extending in the lateral direction. The long hole 9 is used to temporarily fix the standing piece 7 to the inner surface of the mold 4. Apart from the long holes 9, screwing holes 10 for fixing the standing pieces 7 to the inner surface of the mold 7 are formed in the standing pieces 7 on both sides.

  As shown in FIG. 4, this fixed plate 5 is arranged in a mold interior space sandwiched between the molds 4 and 4 in accordance with target anchor cores L1 and L2 (virtual cores), and standing pieces on both sides thereof. A screw member 10 such as a screw is inserted into the long hole 9 for screwing the portion 7, and the both standing piece portions 7 are temporarily fixed to the opposing inner side surfaces of the two mold frames 4 by the screw member 11.

  Next, an upper adjustment plate 12 shown in a perspective view in FIG. 5 is prepared, and this is arranged on the fixed plate 5 as shown in FIG. The upper adjustment plate 12 is formed with a plurality of holes 13 through which the upper portions of the anchor bolts 2 of the anchor bolt assembly 1 are inserted corresponding to the number and arrangement interval of the anchor bolts 2.

  Next, as shown in FIG. 7, the anchor bolt assembly 1 in the mold sandwiched between the two molds 4, 4 is lifted, and the upper end of each anchor bolt 2 is inserted into the corresponding anchor bolt of the fixing plate 5. The upper and lower nuts 14 are inserted through the long holes 8 and into the corresponding holes 13 of the upper adjustment plate 12 above the fixing plate 5, and the fixing plate 5 and the upper adjustment plate 12 are screwed into the anchor bolt 2. 15 (FIG. 6). At this stage, the nuts 14 and 15 are not tightened.

  Next, the position of the fixing plate 5 is adjusted within the range of the long hole 9 for fixing the screw, and the position of the anchor bolt 2 is adjusted within the range of the long hole 8 for inserting the anchor bolt of the fixing plate 5 (FIG. 6). To do. After the position is adjusted in this way, both the mold frames 4, 4 are fixed to the standing piece portions 7 on both sides of the fixed plate 5 by screw members 16 such as screws inserted into the screw-fastening holes 10 of the standing piece portion 7. This is fixed to the opposite inner surface of the. Further, the anchor bolt 2 is tightened by the upper and lower nuts 14 and 15 sandwiching the fixing plate 5 and the upper adjustment plate 12. Thereby, the position of the anchor bolt 2 is adjusted and positioned. In this way, after the anchor bolt 2 is installed, the concrete is placed in the mold sandwiched between the two molds 4 and 4.

  As described above, in the anchor bolt installation method for the fabric foundation, the position of the fixing plate 5 temporarily fixed to the inner surface of the mold 4 is set in the horizontal direction within the range of the long holes 9 for screwing the standing piece 7. The position of the anchor bolt 2 is adjusted, and the position of the anchor bolt 2 is adjusted in the horizontal direction within the range of the long hole 8 for inserting the anchor bolt in the bottom plate portion 6 of the fixing plate 5. Positioning. Therefore, even when a wooden one is used as the mold 4, it is possible to ensure the installation accuracy of the anchor bolt 2 without depending on the dimensions and erection accuracy of the mold 4.

  In addition, by improving the installation accuracy of the anchor bolt 2 in this way, the number of on-site man-hours can be reduced. For example, when an outer wall panel in which an outer wall frame and a pillar are integrated is arranged on a cloth foundation and the outer wall panel is fixed by the anchor bolt 2 of the cloth foundation, the anchor bolt 2 is fixed to the left and right pillars of the outer wall panel. It can be reliably aligned with the anchor bolt hole of the leg base plate. For this reason, when this anchor bolt installation method is applied to the fabric foundation of an environment-friendly store that reuses the outer wall panel, the anchor bolt hole expansion or washer welding performed when the anchor bolt does not align with the anchor bolt hole Field work is not necessary, and obstacles associated with reuse can be eliminated.

DESCRIPTION OF SYMBOLS 1 ... Anchor bolt assembly 2 ... Anchor bolt 3 ... Connecting plate 4 ... Formwork 5 ... Fixing plate 6 ... Bottom plate part 7 ... Standing plate part 8 ... Long hole 9 for anchor bolt insertion ... Long hole 11 for screw fixing ... Screw member 12 ... Upper adjustment plate 13 ... Upper adjustment plate holes 14, 15 ... Nuts L1, L2 ... Anchor core

Claims (2)

A method of installing anchor bolts when constructing a reinforced concrete fabric foundation by placing concrete in a formwork,
A process of assembling an anchor bolt assembly in which a plurality of anchor bolts in a standing posture are coupled together by a connecting plate at the bottom;
Preparing an upper adjustment plate having a hole through which the upper part of each anchor bolt of the anchor bolt assembly is inserted;
Formed in an upward-groove shape with a width in which the standing pieces on both sides are in contact with the opposing inner side surfaces of the mold, and has a slotted screw hole extending laterally on the standing pieces on both sides, and a groove width on the bottom plate Preparing a fixing plate having a long hole for anchor bolt insertion extending in a direction;
Placing the anchor bolt assembly in the mold during or after bar arrangement;
The fixing plate is placed inside the mold so as to match the target anchor core, and the standing pieces on both sides are temporarily fixed to the opposing inner side surfaces of the mold by screw members inserted into the long holes for screwing. The process of
The anchor bolt assembly in the mold is lifted so that the upper end of each anchor bolt is inserted into the anchor bolt insertion long hole of the fixing plate, and the anchor bolt is inserted into the hole of the upper adjustment plate above the fixing plate. The process of sandwiching the insertion fixing plate and the upper adjustment plate between the upper and lower nuts screwed into the anchor bolt,
The fixing plate is positioned within the range of the screw fixing long hole, and the position of the anchor bolt is adjusted within the range of the anchor bolt insertion long hole, and the fixing plate is fixed to the mold frame and the fixing plate is fixed. Tightening the anchor bolt with upper and lower nuts;
Including placing concrete in the mold,
Anchor bolt installation method for reinforced concrete fabric foundation. An anchor bolt and jig set installed in the process of constructing a reinforced concrete fabric foundation by placing concrete in the mold,
An anchor bolt assembly in which a plurality of anchor bolts in a standing posture are coupled to each other by a connecting plate at the bottom;
Formed in an upward-groove shape with a width in which the standing pieces on both sides are in contact with the opposing inner side surfaces of the mold, and has a slotted screw hole extending laterally on the standing pieces on both sides, and a groove width on the bottom plate A fixing plate having an elongated hole for inserting an anchor bolt extending in the direction;
An upper adjustment plate disposed on the fixed plate having a hole through which an upper portion of each anchor bolt of the anchor bolt assembly is inserted;
Upper and lower nuts screwed into each anchor bolt and sandwiching the fixed plate and the upper adjustment plate in an overlapping state,
Anchor bolt and jig set with

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