JP2012246746A - Position correction structure for anchor bolt and position correction method of anchor bolt - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a position correction structure for an anchor bolt and a position correction method in which, after an anchor bolt is installed, if an installation position of the anchor bolt is tilted or deviated by contact by workers or contact/interference by reinforcing-bars during reinforcing-bar arrangement work or die frame installation work, the position is corrected and the anchor bolt is fixed at an accurate position.SOLUTION: A position correction method of anchor bolt includes inserting both terminal screw parts of a U bolt fastened to a reinforcing-bar through a notched groove provided on one side of an L-shaped angle, fastening and fixing the screw parts using a nut, inserting one end where a screw groove of a bar-like member is formed, through an insertion hole provided on the other side of the L-shaped angle, overlapping an insertion hole provided in a plate-like terminal part formed in the other end of the bar-like member with an insertion hole opened in a template, screwing the insertion holes, inserting the bar-like member to the insertion hole of the L-shaped angle to adjust an interval, fastening and fixing the bar-like member using the nut while adjusting a tensile force at the same time.

Description

The present invention relates to an anchor bolt position correcting structure and an anchor bolt position correcting method capable of easily correcting an anchor bolt installation position after an anchor bolt is installed.

In the structure in which the anchor bolts are embedded in the foundation concrete so that the upper end threaded portion protrudes, the anchor bolts are supported through support members connected to the base member provided on the foundation ground, and each anchor bolt is supported. After determining the anchor bolt installation position using a support device that temporarily fixes the anchor bolt with a template via the upper end screw part of the base, the placement work, formwork installation, and foundation concrete placement were performed, and the foundation concrete was placed In general, the work is performed in such a manner that the template is removed and the base is installed on the upper end thread portion of the anchor bolt after the material is cured.

However, the temporary fixing with the above template only supports the anchor bolts with a single template, so the anchor bolt support force is weak, and after locating the anchor bolt, Inclined or misaligned due to contact by workers at the time of installation or formwork, contact / interference due to reinforcing bars, and stress caused by the foundation concrete being placed or when the foundation concrete is hardened There was a problem that happened.
For this reason, when the base is installed, an operation (repairing) for correcting the positional deviation is performed by hitting or heating the upper end thread portion of the anchor bolt.
In addition, if the anchor bolt is inclined or misaligned, the template may not be removed. In this case, the same operation is performed.

However, this work may cause damage to the upper end threaded portion of the anchor bolt, making it difficult to attach the column member, or causing cracks in the foundation concrete and lowering the foundation strength.
For this reason, conventionally, before placing the concrete foundation, a method has been adopted in which the horizontal portion of the reinforcing steel bar (horizontal reinforcing bar or horizontal reinforcing bar, etc.) and the anchor bolt are connected with a binding wire. The work efficiency is poor, there is a risk of misalignment during bundling, it is difficult to correct the position after bundling, and the space for work after installation of the formwork is limited. There are problems such as difficulty in work, variation in binding strength depending on the proficiency level of the worker, and unstable quality.

In order to solve these problems, for example, in Patent Document 1 below, the upper and lower ends of a plurality of anchor bolts are attached, and the upper and lower ends of the square frame plate that positions and supports the anchor bolts are supported. In the anchor bolt support structure comprising: a lower mold plate member; and a supporting frame constructed to be disposed between the discarded concrete directly laid on the soil and the lower mold plate member, the upper mold plate Using the anchor bolt fixing structure in which fixing means is provided between each of the plurality of side portions of the member and the reinforcing bar members arranged in the vicinity thereof, the anchor bolt is connected to the upper mold plate member via the fixing means. A fixing structure and a fixing method for fixing to a reinforcing bar member are disclosed.

Japanese Patent No. 4122409

However, the anchor bolt fixing structure and fixing method according to the above-mentioned Patent Document 1 is as shown in FIG. 4 of the same Document 1, using a turnbuckle that rotates and adjusts the tension, and both ends thereof are connected to the upper mold plate. In this structure and method, the members and the reinforcing bars are fixed to each other by welding, and the anchor bolts are fixed to the reinforcing bars via the upper mold plate member. However, the joint portions of the members are only fixed by welding.
In the case of welding, not only welding equipment is required but also welding technology is required.
In addition, when welding work is performed, it is necessary for the site manager to confirm safety on site for a certain period of time so that a fire does not occur after the welding work is completed, and welding work cannot be performed in rainy weather.
As described above, the construction method that requires welding increases the work period and the work load.
Furthermore, according to the anchor bolt fixing structure and the fixing method according to Patent Document 1, if the foundation concrete is placed, the fixing structure is partially embedded in the foundation concrete. In order to remove the upper plate member whose one end is fixed by welding from the anchor bolt, the fixing structure must be cut. However, for example, in the case of a turnbuckle, it is not easy to cut.

Therefore, in order to solve these problems, the present invention may be inclined by contact by an operator at the time of reinforcing bar work or work for installing a formwork or contact / interference by the reinforcing bar after the anchor bolt is installed. For fixing the anchor bolt installation position where the misalignment occurred and fixing it to the correct position, members that are not close to each other can be joined together, and the position can be corrected and fixed. Joining is possible even if there is a height difference between them, and not only the force that pulls the members together, but also the members can be joined by pressing force, and the position can be corrected and fixed. Provided are an anchor bolt position correcting structure and an anchor bolt position correcting method which can be used even if there is an error in the outer dimensions.

In order to solve the above problems, the present invention takes the following technical means.

The invention according to claim 1
It is shaped like a rod,
One end of the rod is formed with a screw groove on its outer surface,
The other end of the rod is formed in a flat plate shape,
An anchor bolt position correcting tool, wherein an insertion hole is provided in a part of the other end formed in a flat plate shape.

The anchor bolt position correcting tool according to this claim is configured such that both ends of the rod-shaped position correcting tool are fastened to a template temporarily fixing the anchor bolt and a reinforcing bar arranged near the anchor bolt, and welding is performed. Fix and fix the installation position of the anchor bolt without using it at all.

The rod shape of the position correction tool means a form formed in a single straight line, and the cross section thereof may be a cylindrical shape or a polygonal column shape such as a triangular prism or a quadrangular prism. good.
One end of the rod-shaped position correction tool has a screw groove formed on its outer surface.
The end portion where the screw groove is formed is fastened to a reinforcing bar arranged near the anchor bolt.
For example, a member having an insertion hole is fastened to a reinforcing bar, and the end where the screw groove of the position correction tool according to the present invention is inserted is inserted into the insertion hole of the member, and nuts are inserted from both sides sandwiching the member. Tighten and fix.

The other end of the position correction tool according to the present invention is formed in a flat plate shape, and an insertion hole is provided in a part of the end portion formed in the flat plate shape.
The end portion formed in the flat plate shape is fastened to the template.
The template can be fastened by, for example, opening a screw hole in the template, superimposing the other end of the plate-shaped position correction tool on the screw hole of the template, and using the other end as the screw hole of the template. It may be fixed by screwing or bolting, and the end of the position correction tool formed in a flat plate shape and the template are sandwiched by a U-shaped clamp, and the insertion provided in the flat plate formed end portion The clamp bolt may be screwed into the hole, and the clamp bolt may be screwed as it is, and the template may be pressed and clamped by the U-shaped clamp.

By adopting such a method, without using any welding, it is fastened to the template that temporarily fixes the anchor bolt and the reinforcing bar arranged near the anchor bolt, respectively, and the anchor bolt installation position is corrected. Can be fixed.

By the way, since the other end of the anchor bolt position correcting tool according to the present invention is formed in a flat plate shape, the portion can be bent to an arbitrary angle by applying a force.
This is because, for example, when the reinforcing bar is arranged below or above the template, the template for temporarily fixing the anchor bolt and the reinforcing bar arranged near the anchor bolt are at the same height (horizontal position). Even if not, both ends of the position correction tool can be fastened to the template and the reinforcing bar, respectively.
In other words, the position correction tool that is clamped to the template by sandwiching the template with the U-shaped clamp and the clamp bolt is formed in a single straight line (bar shape), so that it faces the horizontal direction at the same horizontal position as the template. End up.
Then, for example, when the reinforcing bar is arranged below or above the template, there is a problem that the end of the position correction tool cannot be fastened to the reinforcing bar.
Therefore, with the end portion of the position correction tool formed in the flat plate shape fastened to the template, the position correction tool is bent at the portion formed in the flat plate shape by applying force to the other end of the position correction tool. The end of the tool where the screw groove is formed is directed downward or upward where the reinforcing bar is arranged so that the other end of the position correction tool can be fastened to the reinforcing bar.
By bending the position correction tool and directing the end of the position correction tool toward the rebar to be fastened in this way, the reinforcing bar is arranged below or above the template, and the height between the template and the reinforcing bar is high. Even if there is a difference, the operator can easily fasten the position correction tool to an arbitrary reinforcing bar located below or above the template without depending on a method such as welding.

In addition, as long as an operator can bend easily, shapes other than flat form can also be taken.
For example, only a portion that bends the position correction tool formed in a rod shape may be formed in a thin plate shape, and the end portion provided with the insertion hole may be formed in a rod shape.
Also, the bending position may be bent not at a portion close to the end portion where the insertion hole is provided, but at, for example, an intermediate portion of a rod-shaped position correction tool.

The anchor bolt position correcting tool according to this claim is inserted into the insertion hole of the member to which the reinforcing bar is fastened and fixed, and the end portion where the screw groove of the position correcting tool is formed is tightened with nuts from both sides sandwiching the member. And fix.
In this fastening, it is possible to adjust the fastening position by inserting the end of the position correction tool in which the screw groove is formed into the insertion hole of the member fastened and fixed to the reinforcing bar, and fastening and fixing with a nut. it can.
The fastening position can be easily adjusted by tightening with nuts from both sides of the position correction tool with the member to which the reinforcing bar is fastened fixedly held.
By allowing the rod-shaped member to pass through the insertion hole of the member to which the reinforcing bar is fastened and fixed so that the fastening position can be adjusted, it is possible to adjust the distance between the template for fastening the position correction tool and the reinforcing bar.
Furthermore, each tension | tensile_strength between a position correction tool and a template and a position correction tool and a reinforcing bar can also be adjusted.

Regarding the interval adjustment, since the interval between the template and the reinforcing bar varies depending on the object to be fastened (template, reinforcing bar), it is desirable to be able to adjust it with a position correction tool.
However, it is uneconomical to prepare a plurality of length position correction tools in advance according to the distance between the template and the reinforcing bar, and it is economical if one position correction tool can cope with any interval. .
Therefore, the anchor bolt position correction tool according to this claim is not such that the position correction tool itself expands and contracts, and the end of the position correction tool in which the screw groove is formed is inserted into the insertion hole of the member to which the reinforcing bar is fastened and fixed. The distance between the template and the reinforcing bar can be adjusted by inserting it so that it can be advanced and retracted and adjusting the position to be fastened with a nut.
This eliminates the need to prepare a plurality of length position correction tools in accordance with the distance between the template and the reinforcing bar, and is economical because one position correction tool can be used regardless of the interval.

Regarding tension adjustment, a conventional structure or method for fastening an anchor bolt and a reinforcing bar employs a method of fixing each object to be fastened by a pulling force.
In particular, the invention according to Patent Document 1 is a structure and method for fixing an anchor bolt only by a pulling force. The anchor bolt is positioned between members to be fastened and pulled by pulling the members to be fastened together. It is fixed to the reinforcing bar.
On the other hand, the position correction tool according to the present invention pulls the member to be fastened by allowing it to pass through the insertion hole of the member to which the reinforcing bar is fastened and fixed, and to be fastened with a nut at an arbitrary position. This is effective in that the tension can be adjusted not only by the force but also by the opposite pushing force.
Then, conventionally, it was necessary to select an optimal reinforcing bar to be fastened on the assumption that the members to be fastened are pulled and fixed. According to the position correction tool according to this claim, the pulling force and the pushing force are selected. Since the reinforcing bars to be fastened from both can be selected, the range of selection is increased, and the degree of freedom of work and workability are improved.

In addition, the anchor bolt position correction tool according to this claim is such that even if a portion of the position correction tool is embedded in the foundation concrete after the foundation concrete is placed, only the template can be easily removed. effective.
Conventionally, when the anchor bolt installation position is corrected or fixed, even if you try to remove the template after placing the concrete foundation, the corrected or fixed member is buried, so remove only the template. It was difficult.
In particular, the invention according to Patent Document 1 uses a turnbuckle as shown in FIG. 4 of the same document 1, but the turnbuckle is difficult to cut, so the fastening portion must be cut by welding. In this case, there is a problem that the upper mold plate member cannot be removed.
On the other hand, the anchor bolt position correction tool according to this claim is a case where the template can be easily removed by loosening the clamp bolt holding the template, and the clamp bolt cannot be loosened. Since the position correction tool has a rod-like shape, it can be easily cut by a power storage cutter or the like, and only the template can be easily removed.

In addition, according to the anchor bolt position correcting tool according to the present invention, since welding is not used for fastening the template and the reinforcing bar, no welding equipment is required, and the work can be performed without being influenced by the weather.
In addition, the work can be performed safely and the construction period is extremely short.

The invention according to claim 2
The position correction tool according to claim 1 is:
A member having either one of an end formed with a screw groove on the outer surface or an end formed in a flat plate shape;
A member having the other end of the end formed with a screw groove on the outer surface or the end formed in a flat plate shape,
Formed on a screw cylinder and a screw rod of different diameters,
2. The anchor bolt position correcting tool according to claim 1, wherein the screw rod is screwed into a screw cylinder and is connected to be stretchable.

The anchor bolt position correction tool according to the present invention is configured such that the position correction tool itself of the invention according to claim 1 can be extended and contracted to adjust the distance from the member to be fastened by expansion and contraction of the position correction tool itself. It is a feature.
Thereby, even when the interval between the members to be fastened is not constant, there is no need to prepare a plurality of length members, which is economical.

The invention according to claim 3
A screw groove is formed on the outer surface of one end,
The other end is formed in a flat plate shape,
A rod-shaped member provided with an insertion hole in a part of the end formed in a flat plate shape,
An insertion hole is provided on one surface of the L-shaped cross section,
An L-shaped angle provided with a notch groove on the other surface;
Consists of
Insert the screw on both ends of the U-bolt to which the rebar is fastened and fixed, into the L-shaped angled notch groove, and fix it with a nut.
The anchor bolt position correcting structure is characterized in that an end portion in which a screw groove of a rod-like member fastened to a template is formed is inserted into an L-shaped angle insertion hole and fixed with a nut.

The anchor bolt position correcting structure according to this claim is the position correcting tool according to claim 1 (in the position correcting structure according to the following claims, including the present claim, it is referred to as “bar-shaped member”. In addition to the position correction tool of No. 2, the anchor bolt installation position is corrected and fixed using an L-shaped angle.
The L-shaped angle is provided with an insertion hole on one surface.
The end of the rod-shaped member in which the screw groove is formed is inserted into the insertion hole and fixed with a nut.
Further, one or two notch grooves are provided on the other surface of the L-shaped angle.
The notch groove is inserted with a threaded portion of both ends of a U bolt to which a reinforcing bar arranged in the vicinity of the anchor bolt is fastened, and is fixed with a nut.
In some cases, it is sufficient to fix only one screw portion instead of fixing both screw portions of the both end screw portions of the U bolt. In such a case, only one notch groove is provided. By using the L-shaped angle, it is possible to fasten with the reinforcing bar.
Further, instead of using one notch groove of the L-shaped angle provided with two notch grooves, only the other notch groove may be fixed to one screw portion of the U bolt.
The rod-shaped member and the template are fastened in the same manner as described above, for example, with a U-shaped clamp, sandwiching the end of the position correction tool formed in a flat plate and the template, and provided at the end formed in a flat plate. The clamp bolt is inserted into the insertion hole, the clamp bolt is screwed as it is, the template is pressed and clamped by the U-shaped clamp, and the rod-shaped member and the template are fastened.
By adopting such a method, without using any welding, the template for temporarily fixing the anchor bolt and the reinforcing bar arranged near the anchor bolt are fastened, and the anchor bolt installation position is corrected and fixed. can do.

Note that the notch groove provided on one surface of the L-shaped angle is for inserting the screw portions at both ends of the U-bolt and fixing them with nuts. Therefore, the L-shaped angle is not a notch groove. For example, you may provide the insertion hole which penetrates the both-ends screw part of a U volt | bolt.
The insertion hole, like the above-mentioned notch groove, uses an L-shaped angle provided with only one insertion hole when it is sufficient to fix only one screw part among the screw parts at both ends of the U-bolt. Alternatively, one insertion hole of the L-shaped angle provided with two insertion holes may not be used, and only the other insertion hole may be fixed to one screw portion of the U bolt and used.

The invention according to claim 4
A screw groove is formed on the outer surface of one end,
The other end is formed in a flat plate shape,
A rod-shaped member provided with an insertion hole in a part of the end formed in a flat plate shape,
An insertion hole is provided on one surface of the L-shaped cross section,
An L-shaped angle provided with a notch groove on the other surface;
Clamp bolt and U-shaped clamp,
Consists of
Insert the threaded ends of the U-bolt to which the rebar is fastened into the notch groove on one side of the L-shaped angle, and fix it by tightening with a nut.
Insert the clamp bolt into the insertion hole provided at the flat plate end formed at the other end of the rod-shaped member,
The template is sandwiched between the clamps,
The clamp bolt is screwed to press the template so as to press the template together with the flat plate-like end of the rod-shaped member,
Insert one end where the thread groove of the rod-shaped member is formed in the insertion hole provided on the other surface of the L-shaped angle,
The anchor bolt position correcting structure is characterized in that a rod-shaped member is inserted into an L-shaped angle insertion hole to adjust the distance and at the same time tighten and fix with a nut while adjusting the tension.

The anchor bolt position correcting structure according to this claim is characterized by correcting and fixing the installation position of the anchor bolt using a clamp bolt and a U-shaped clamp in addition to the rod-shaped member and L-shaped angle of claim 3. This is a position correction structure.
The C-type clamp is inserted into the insertion hole provided in the flat plate end of the rod-shaped member, and the clamp bolt is screwed as it is and pressed so as to sandwich the template for temporarily fixing the anchor bolt. Hold it.
In this way, the rod-shaped member is fastened to the template.
As described above, the rod-shaped member and the reinforcing bar arranged near the anchor bolt are fastened using the L-shaped angle.

Note that the notch groove provided on one surface of the L-shaped angle is for inserting the screw portions at both ends of the U-bolt and fixing them with nuts. Therefore, the L-shaped angle is not a notch groove. For example, you may provide the insertion hole which penetrates the both-ends screw part of a U volt | bolt.
The insertion hole, like the above-mentioned notch groove, uses an L-shaped angle provided with only one insertion hole when it is sufficient to fix only one screw part among the screw parts at both ends of the U-bolt. Alternatively, one insertion hole of the L-shaped angle provided with two insertion holes may not be used, and only the other insertion hole may be fixed to one screw portion of the U bolt and used.

The invention according to claim 5
The rod-shaped member of claim 3 or claim 4 is
A member having either one of an end formed with a screw groove on the outer surface or an end formed in a flat plate shape;
A member having the other end of the end formed with a screw groove on the outer surface or the end formed in a flat plate shape,
Formed on a screw cylinder and a screw rod of different diameters,
An anchor bolt position correcting structure characterized in that a screw rod is screwed into a screw cylinder and is connected so as to expand and contract.

In the anchor bolt position correcting structure according to the present invention, the rod-shaped member itself of the invention according to claim 3 or 4 is made to be extensible so that the distance from the fastening member is adjusted by the expansion and contraction of the rod-shaped member itself. It is characterized by this.
Thereby, even when the interval between the members to be fastened is not constant, there is no need to prepare a plurality of length members, which is economical.

The invention according to claim 6
The L-shaped angle according to any one of claims 3 to 5,
An anchor bolt position correcting structure characterized by adjusting a directivity angle of a rod-like member that is bent to an L-shaped angle by bending the L-shaped angle.

The anchor bolt position correcting structure according to the present invention is the position correcting structure according to any one of claims 3 to 5, wherein the L-shaped angle is bent and fastened to the L-shaped angle. The angle is adjusted.
If the L-shaped angle cannot be bent freely, the rod-shaped member fastened to the L-shaped angle is oriented only in the same horizontal direction as the reinforcing bar to be fastened to the L-shaped angle, and the rod-shaped member is oriented higher than the reinforcing bar. Thus, the rod-shaped member cannot be fastened to the template.
However, by bending the L-shaped angle so that the directivity angle of the rod-shaped member can be adjusted, the rod-shaped member fastened to the L-shaped angle can be directed to a position higher than the reinforcing bar, so that the rod-shaped member is fastened. A wide range of locations can be selected.
In order to bend the L-shaped angle, for example, the L-shaped angle can be bent to an arbitrary angle by applying a force to one surface of the L-shaped angle.
By bending the L-shaped angle in this way, the orientation angle of the bar-shaped member fastened to the L-shaped angle can be adjusted, and the bar-shaped member can be fastened to a position higher than the reinforcing bar and fastened to the template without using welding. In addition, the rod-shaped member can be easily fastened to the template located higher than the reinforcing bar.

The invention according to claim 7 provides:
Insert the threaded ends of the U-bolt fastened to the reinforcing bar into the notch groove provided on one side of the L-shaped angle, and fix it by tightening with a nut.
Insert one end where the thread groove of the rod-shaped member is formed in the insertion hole provided on the other surface of the L-shaped angle,
The insertion hole provided in the flat plate-like end formed at the other end of the rod-shaped member is overlapped with the through-hole formed in the template and screwed,
A method for correcting the position of an anchor bolt, wherein a rod-shaped member is inserted into an L-shaped angle insertion hole to adjust the distance and at the same time tighten and fix with a nut while adjusting the tension.

The anchor bolt position correcting method according to the present invention is an invention relating to a method of correcting and fixing the anchor bolt installation position by means of a rod-shaped member and an L-shaped angle. Specifically, both ends of the rod-shaped member are templates. The rod-shaped member is inserted into the L-shaped angle insertion hole so as to be freely advanced and retracted, and the distance adjustment and the tension adjustment are performed.
There is no problem before and after the work of fastening the end of the rod-like member to the template and the reinforcing bar, and any fastening may be done first.
The U-bolt is fitted to the reinforcing bar arranged near the anchor bolt, the both-ends screw portion of the U-bolt is inserted into the L-shaped angle cutout groove, and fastened with a nut to fix the L-shaped angle to the reinforcing bar.
After fixing the L-shaped angle to the reinforcing bar, if necessary, the angle is adjusted by bending the L-shaped angle so that the rod-shaped member fastened to the L-shaped angle is oriented in the template direction.
A through hole is drilled in the template, and an insertion hole provided at a flat plate end formed at the other end of the rod-shaped member is overlapped with the through hole of the template and screwed.
The rod-like member fastened and fixed to the template is bent as necessary near the end of the plate-like rod-like member, and the angle is adjusted so that the rod-like member is oriented in the reinforcing bar direction.
Then, the end of the rod-shaped member fixed to the template, in which the screw groove is formed, is inserted into the L-shaped angle insertion hole so as to be able to move forward and backward. Make adjustments.
Thus, by adjusting the angle with the two members of the L-shaped angle and the rod-shaped member, the angle can be adjusted more accurately and reliably, and workability is improved.
The tension adjustment is different from the prior art in that the tension can be adjusted not only by the template and the reinforcing bar pulling force, but also by the opposite pushing force.
That is, according to the position correction method according to the present claim, the template for temporarily fixing the anchor bolt can be fixed to the reinforcing bar by both the pulling force and the pushing force, and as a result, both the pulling force and the pushing force are used. The installation position of the anchor bolt can be corrected and fixed.

The invention according to claim 8 provides:
Insert the threaded ends of the U-bolt fastened to the reinforcing bar into the notch groove provided on one side of the L-shaped angle, and fix it by tightening with a nut.
Insert the clamp bolt into the insertion hole provided at the flat plate end formed at the other end of the rod-shaped member,
The template is sandwiched between the clamps,
The clamp bolt is screwed to press the template so as to press the template together with the flat plate-like end of the rod-shaped member,
Insert one end where the thread groove of the rod-shaped member is formed in the insertion hole provided on the other surface of the L-shaped angle,
A method for correcting the position of an anchor bolt, wherein a rod-shaped member is inserted into an L-shaped angle insertion hole to adjust the distance and at the same time tighten and fix with a nut while adjusting the tension.

The anchor bolt position correcting method according to the present invention is an invention relating to a method of correcting and fixing the anchor bolt installation position by means of a rod-shaped member, an L-shaped angle, a U-shaped clamp, and a clamp bolt. The both ends of the rod-shaped member are fastened to the template and the reinforcing bar, and finally, the rod-shaped member is inserted into the insertion hole of the L-shaped angle so as to be able to advance and retract.
There is no problem before and after the work of fastening the end of the rod-like member to the template and the reinforcing bar, and any fastening may be done first.
The U-bolt is fitted to the reinforcing bar arranged near the anchor bolt, the both-ends screw portion of the U-bolt is inserted into the L-shaped angle cutout groove, and fastened with a nut to fix the L-shaped angle to the reinforcing bar.
After fixing the L-shaped angle to the reinforcing bar, if necessary, the angle is adjusted by bending the L-shaped angle so that the rod-shaped member fastened to the L-shaped angle is oriented in the template direction.
The C-type clamp inserts the clamp bolt into the insertion hole provided in the flat plate end formed at the other end of the rod-shaped member, and presses the template with the template clamped by screwing the clamp bolt as it is. After clamping, if necessary, the end of the bar-shaped member formed in a flat plate shape is bent, and the angle is adjusted so that the bar-shaped member is oriented in the reinforcing bar direction.
Then, the end of the rod-shaped member fixed to the template, in which the screw groove is formed, is inserted into the L-shaped angle insertion hole so as to be able to move forward and backward. Make adjustments.
Thus, by adjusting the angle with the two members of the L-shaped angle and the rod-shaped member, the angle can be adjusted more accurately and reliably, and workability is improved.
The tension adjustment is different from the prior art in that the tension can be adjusted not only by the template and the reinforcing bar pulling force, but also by the opposite pushing force.
That is, according to the position correction method according to the present claim, the template for temporarily fixing the anchor bolt can be fixed to the reinforcing bar by both the pulling force and the pushing force, and as a result, both the pulling force and the pushing force are used. The installation position of the anchor bolt can be corrected and fixed.

The present invention has the following effects.

1) Without using welding, the anchor bolt installation position can be corrected and fixed with both pulling force and pushing force.

2) Each member related to the position correction tool and the position correction structure can be used repeatedly.

3) Since the position correction tool or the rod-shaped member can be easily cut with a power storage cutter or the like even after foundation concrete is placed, the template can be easily removed.

4) The angle in the vertical direction can be adjusted with two members, an L-shaped angle and a rod-shaped member.

5) Work can be done even in rainy weather and construction period can be shortened.

It is a front view of a position correction tool. It is a rear view of a position correction tool. It is a right view of a position correction tool. It is a top view of a position correction tool. It is a bottom view of a position correction tool. It is a figure which shows the plane and side surface of a position correction tool from which length differs. It is a front view of the L-shaped angle provided with the notch groove. It is a rear view of the L-shaped angle provided with the notch groove. It is a right view of the L-shaped angle provided with the notch groove. It is a top view of the L-shaped angle provided with the notch groove. It is a bottom view of the L-shaped angle provided with the notch groove. It is a front view center longitudinal cross-sectional view of the L-shaped angle provided with the notch groove. It is a front view of the L-shaped angle provided with the insertion hole. It is a rear view of the L-shaped angle provided with the insertion hole. It is a right view of the L-shaped angle provided with the insertion hole. It is a top view of the L-shaped angle provided with the insertion hole. It is a bottom view of the L-shaped angle provided with the insertion hole. It is an AA line sectional view of an L-shaped angle provided with an insertion hole. It is a BB line sectional view of an L-shaped angle provided with an insertion hole. It is a top view center longitudinal cross-sectional view of the L-shaped angle provided with the insertion hole. It is a front view of a U-shaped clamp. It is a rear view of a U-shaped clamp. It is a right view of a U-shaped clamp. It is a top view of a U-shaped clamp. It is a bottom view of a U-shaped clamp. It is a top view center longitudinal cross-sectional view of a U-shaped clamp. It is a figure which shows one Example of an L-shaped angle. It is a figure which shows one Example of an L-shaped angle. It is a figure which shows one Example of the position correction structure by a rod-shaped member and an L-shaped angle. It is a figure which shows one Example of the position correction structure by a rod-shaped member and an L-shaped angle. It is a figure which shows one Example of the position correction structure by a rod-shaped member and an L-shaped angle. It is a figure which shows one Example of the position correction structure by a rod-shaped member, an L-shaped angle, and a U-shaped clamp. It is a figure which shows one Example of the position correction structure by a rod-shaped member, an L-shaped angle, and a U-shaped clamp.

An anchor bolt position correcting tool, a position correcting structure, and a position correcting method according to the present invention will be described with reference to the drawings.

1 to 6 are rod-shaped position correction tools (the position correction tool is called a “bar-shaped member” in the position correction structure, and both represent the same. Hereinafter, the position correction tool and the bar-shaped member are not distinguished. Is also a “bar-shaped member”).
The rod-shaped member 1 has a screw groove 2 formed at one end and a flat plate at the other end (an end 3 formed into a flat plate).
An insertion hole 4 is provided in a part of the other end 3 formed in a flat plate shape.
The bar shape means a form formed in a single straight line, and may be a cylindrical shape, or may be formed in a polygonal shape such as a triangular prism or a quadrangular prism.
The rod-shaped member 1 is connected to a member having an end portion in which a screw groove 2 is formed on the outer surface and a member having an end portion 3 formed in a flat plate shape, and a screw cylinder and a screw having different diameters at the connection portion. Each of the rods is formed on the rod, and the screw rod can be screwed into the screw cylinder so that the rod can be extended and contracted.
As described above, since the rod-shaped member 1 itself has a structure that can be freely expanded and contracted, the distance between the rod-shaped member 1 and other members (templates and reinforcing bars) to be fastened can be adjusted by the expansion and contraction of the rod-shaped member 1. Even if the interval between the rod-shaped member 1 and other members (templates or reinforcing bars) to be fastened is not constant, there is no need to prepare the rod-shaped member 1 having a plurality of lengths in advance, and one rod-shaped member. Economical because 1 is sufficient.
Moreover, the rod-shaped member 1 can be angle-adjusted so that the rod-shaped member 1 may be oriented in the reinforcing bar direction by bending the end portion 3 formed in a flat plate shape.
Since the rod-shaped member 1 is formed in a single linear shape (bar-shaped), the end portion 3 formed in a flat plate shape of the rod-shaped member 1 is overlapped on the surface of the template, and a screw is inserted into the insertion hole 4 of the end portion. When a bolt or a bolt is inserted and screwed into the template, the rod-shaped member 1 faces the same direction (horizontal direction) as the surface of the template.
However, by bending the end portion 3 of the rod-shaped member 1 formed in a flat plate shape, the direction of the end portion of the rod-shaped member 1 where the screw groove 2 is formed can be adjusted (angle adjustment) to an arbitrary direction.
For example, after the end portion 3 of the rod-shaped member 1 formed in a flat plate shape is fastened to the template, if the end portion of the rod-shaped member 1 where the screw groove 2 is formed is to be fastened to the rebar, the rebar is below the template. Alternatively, when the bar is arranged upward, the end of the rod-shaped member 1 where the screw groove 2 is formed needs to be directed toward the reinforcing bar, but the end 3 formed in a flat plate shape is bent at an arbitrary angle. If the direction of the bar-shaped member 1 can be adjusted freely, the bar-shaped member 1 can be fastened to a reinforcing bar that is not arranged in the same horizontal position as the template.
In this way, the reinforcing bars are not arranged at the same horizontal position as the template, and even if there is a height difference between the template and the reinforcing bars, it is positioned below or above the template regardless of the welding method. The bar-like member 1 can be fastened to an arbitrary reinforcing bar by adjusting the angle.

7 to 20 are views showing L-shaped angles of the position correction structure.
7 to 12 show an L-shaped angle provided with a notch groove, and FIGS. 13 to 20 show an L-shaped angle provided with an insertion hole.
The L-shaped angle 5 is provided with one insertion hole 6 on one surface and two notches 7 or two insertion holes 8 on the other surface.
The end of the rod-shaped member 1 in which the screw groove 2 is formed is inserted into the insertion hole 6 provided on one surface.
By tightening and fixing the inserted rod-shaped member 1 with a nut, the rod-shaped member 1 is fastened to the L-shaped angle 5.
Inserted into the cutout groove 7 or the insertion hole 8 are both-end screw portions of a U bolt to which a reinforcing bar arranged in the vicinity of the anchor bolt is fastened and fixed.
The L-shaped angle 5 is fastened to the reinforcing bar by fastening the screw portions at both ends of the inserted U bolt with nuts.
Only one of the two notched grooves 7 or the two insertion holes 8 is fixed to only one of the notched grooves 7 or one of the two insertion holes 8. You can also.
The L-shaped angle 5 does not necessarily require that the two surfaces constituting the L-shape are formed at right angles, and the inner angle formed by the two surfaces may be 90 degrees or less or 90 degrees or more. May be bent so that the inner angle becomes 90 degrees or less, and conversely, the two angles may be opened to extend the inner angle to 90 degrees or more.
The location where the L-shaped angle 5 is bent and extended may be any location.
The angle inside the two surfaces of the L-shaped angle 5 is adjusted so that the direction in which the rod-shaped member 1 fastened to one surface provided with the insertion hole 6 of the L-shaped angle 5 is directed can be adjusted. Because.
If the L-shaped angle 5 is formed in a right-angled L-shape and the two surfaces cannot be bent or extended freely, the rod-like member 1 fastened to the L-shaped angle 5 is a reinforcing bar fastened to the L-shaped angle 5. Since it is directed only in the same direction, the rod-shaped member 1 cannot be fastened to the template located higher than the reinforcing bar.
The L-shaped angle 5 is fastened to the L-shaped angle 5 if the angle inside the two surfaces is 90 degrees or less or 90 degrees or more in advance, or the two surfaces can be bent or extended by applying force. The rod-shaped member 1 can be directed to the template located at a position higher than the reinforcing bar, and the object to be fastened to the rod-shaped member 1 can be selected in a wide range.
Furthermore, if the angle can be adjusted twice by the rod-shaped member 1 and the two L-shaped angles, the rod-shaped member 1 can be fastened to the template and the reinforcing bar more accurately and reliably.

21 to 26 are views showing a U-shaped clamp having a position correcting structure.
The U-shaped clamp 9 is provided with a screw hole 10 into which a clamp bolt is screwed on an upper surface, and includes a side surface portion in which insertion grooves 11 for inserting a template and holding the clamp bolt between the left and right side surfaces are formed.
The clamp bolt inserted through the insertion hole 4 provided in the end portion 3 formed in the flat plate shape of the rod-shaped member 1 is screwed into the screw hole 10 provided on the upper surface of the U-shaped clamp 9, and the clamp bolt is screwed as it is. The template inserted into the insertion groove 11 of the U-shaped clamp 9 is sandwiched and pressed, and the template is clamped by the clamp bolt and the U-shaped clamp 9.
In this way, the rod-shaped member 1 is fastened to the template.

27 and 28 are diagrams showing an embodiment in which an L-shaped angle provided with a notch groove is fastened to a reinforcing bar.
The screw portions 14 at both ends of the U bolt 13 fastened to the reinforcing bar 12 are inserted into the notch groove 7 of the L-shaped angle 5 and fastened and fixed with nuts.
When it is sufficient to fix only one screw portion 14 among the screw portions 14 at both ends of the U bolt 13, one screw portion 14 of the U bolt 13 may be fixed to only one notch groove 7. it can.

FIGS. 29 to 31 are views showing an embodiment of a position correcting structure using a rod-shaped member and an L-shaped angle.
The anchor bolt position correcting method in the embodiment of FIGS. 29 to 31 is a method of correcting and fixing the anchor bolt installation position by means of a rod-shaped member and an L-shaped angle.
There is no problem before and after the work of fastening the end of the rod-like member to the template and the reinforcing bar, and any fastening may be done first.
The U-bolt 13 is fitted to the reinforcing bar 12 arranged in the vicinity of the anchor bolt 15, the both-end screw part 14 of the U-bolt is inserted into the notch groove 7 of the L-shaped angle 5, and is fastened with a nut. 5 is fixed to the reinforcing bar 12.
After fixing the L-shaped angle 5 to the reinforcing bar 12, the L-shaped angle 5 is bent and adjusted as necessary so that the rod-shaped member 1 fastened to the L-shaped angle 5 is directed toward the template 16.
A through hole is formed in the template 16, and the insertion hole 4 provided in the end portion 3 formed in the flat plate shape of the rod-shaped member 1 is overlapped with the through hole of the template 16 and screwed.
The screwed portion can be replaced with a bolt.
The rod-like member 1 fastened and fixed to the template 16 is bent near the end 3 of the rod-like member 1 formed in a flat plate shape, and the angle is adjusted so that the rod-like member 1 is oriented in the reinforcing bar direction.
Then, the end where the screw groove 2 of the rod-shaped member 1 fixed to the template 16 is formed is inserted into the L-shaped angle insertion hole 4 so as to freely advance and retract, and at the same time, the distance between the template 16 and the reinforcing bar 12 is adjusted. Tighten with a nut to adjust the tension.
Thus, by adjusting the angle with the two members of the L-shaped angle 5 and the rod-shaped member 1, the angle can be adjusted more accurately and reliably, and the workability is improved.
The tension can be adjusted not only by the force for pulling the template 16 and the reinforcing bar 12 for fastening the rod-shaped member 1 but also by the opposite pressing force.
In the embodiment of FIG. 29, the rod-shaped member 1 is fastened to the L-shaped angle 5 so that the rod-shaped member 1 is directed to the outside of the L-shaped angle 5, so that the L-shaped member 1 is directed upward. The angle is adjusted by bending the two surfaces of the mold angle 5. On the contrary to this embodiment, the rod-shaped member 1 is fastened to the L-shaped angle 5 so as to face the inside of the L-shaped angle 5. It is also possible to extend the two surfaces of the mold angle 5 so that the rod-shaped member 1 is directed upward.

32 and 33 are views showing an embodiment of a position correcting structure using a rod-shaped member, an L-shaped angle, and a U-shaped clamp.
The anchor bolt position correcting method in the embodiment of FIGS. 32 and 33 is a method of correcting and fixing the anchor bolt installation position by means of a rod-shaped member, an L-shaped angle, a clamp bolt, and a U-shaped clamp.
There is no problem before and after the work of fastening the end of the rod-like member to the template and the reinforcing bar, and any fastening may be done first.
The U-bolt 13 is fitted to the reinforcing bar 12 arranged in the vicinity of the anchor bolt 15, the both-end screw part 14 of the U-bolt 13 is inserted into the notch groove 7 of the L-shaped angle 5, and fastened with a nut. The angle 5 is fixed to the reinforcing bar 12.
After fixing the L-shaped angle 5 to the reinforcing bar 12, the L-shaped angle 5 is bent and adjusted as necessary so that the rod-shaped member 1 fastened to the L-shaped angle 5 is directed toward the template 16.
In the embodiment of FIG. 33, the rod-shaped member 1 is fastened to the L-shaped angle 5 so that the rod-shaped member 1 is directed to the outside of the L-shaped angle 5, so that the rod-shaped member 1 is directed to be directed upward. The angle is adjusted by bending the two surfaces of the mold angle 5. On the contrary to this embodiment, the rod-shaped member 1 is fastened to the L-shaped angle 5 so as to face the inside of the L-shaped angle 5. It is also possible to extend the two surfaces of the mold angle 5 so that the rod-shaped member 1 is directed upward.
The U-shaped clamp 9 is in a state where the clamp bolt 17 is inserted into the insertion hole 4 provided in the end portion 3 formed in the flat plate shape of the rod-shaped member 1 and the template 16 is sandwiched by screwing the clamp bolt 17 as it is. After pressing the template 16 to pinch the template 16, the end 3 of the bar-shaped member 1 formed in a flat plate shape is bent, and the angle is adjusted so that the bar-shaped member 1 is directed toward the reinforcing bar 12.
Then, the end of the rod-shaped member 1 fixed to the template 16 where the screw groove 2 is formed is inserted into the insertion hole 6 of the L-shaped angle 5 so as to be able to advance and retreat, and at the same time the distance between the template 16 and the reinforcing bar 12 is adjusted. Tighten with nuts to adjust the tension.
Thus, by adjusting the angle with the two members of the L-shaped angle 5 and the rod-shaped member 1, the angle can be adjusted more accurately and reliably, and the workability is improved.
The tension can be adjusted not only by the force for pulling the template 16 and the reinforcing bar 12 for fastening the rod-shaped member 1 but also by the opposite pressing force.
By the above method, the installation position of the anchor bolt can be corrected and fixed without using any welding.

DESCRIPTION OF SYMBOLS 1 Rod-shaped member 2 Screw groove 3 End part 4 formed in flat shape of rod-shaped member 4 Insertion hole 5 of rod-shaped member L-shaped angle 6 Insertion hole 7 provided in one surface of L-shaped angle Provided in other surface of L-shaped angle Cut-out groove 8 L-shaped insertion hole 9 provided on the other surface 9 C-shaped clamp 10 Screw hole 11 Insertion groove 12 Rebar 13 U bolt 14 Screw part 15 Anchor bolt 16 Template 17 Clamp bolt

Claims (8)

It is shaped like a rod,
One end of the rod is formed with a screw groove on its outer surface,
The other end of the rod is formed in a flat plate shape,
An anchor bolt position correcting tool, wherein an insertion hole is provided in a part of the other end formed in a flat plate shape. The position correction tool is
A member having either one of an end formed with a screw groove on the outer surface or an end formed in a flat plate shape;
A member having the other end of the end formed with a screw groove on the outer surface or the end formed in a flat plate shape,
Formed on a screw cylinder and a screw rod of different diameters,
2. The anchor bolt position correction tool according to claim 1, wherein the screw rod is screwed into a screw cylinder and is connected to be extendable. A screw groove is formed on the outer surface of one end,
The other end is formed in a flat plate shape,
A rod-shaped member provided with an insertion hole in a part of the end formed in a flat plate shape,
An insertion hole is provided on one surface of the L-shaped cross section,
An L-shaped angle provided with a notch groove on the other surface;
Consists of
Insert the screw on both ends of the U-bolt to which the rebar is fastened and fixed, into the L-shaped angled notch groove, and fix with the nut.
An anchor bolt position correcting structure, wherein an end portion of a rod-like member fastened to a template in which a screw groove is formed is inserted into an L-shaped angle insertion hole and fixed with a nut. A screw groove is formed on the outer surface of one end,
The other end is formed in a flat plate shape,
A rod-shaped member provided with an insertion hole in a part of the end formed in a flat plate shape,
An insertion hole is provided on one surface of the L-shaped cross section,
An L-shaped angle provided with a notch groove on the other surface;
Clamp bolt and U-shaped clamp,
Consists of
Insert the threaded ends of the U-bolt to which the rebar is fastened into the notch groove on one side of the L-shaped angle, and fix it by tightening with a nut.
Insert the clamp bolt into the insertion hole provided at the flat plate end formed at the other end of the rod-shaped member,
The template is sandwiched between the clamps,
The clamp bolt is screwed to press the template so as to press the template together with the flat plate-like end of the rod-shaped member,
Insert one end where the thread groove of the rod-shaped member is formed in the insertion hole provided on the other surface of the L-shaped angle,
An anchor bolt position correcting structure characterized in that a rod-shaped member is inserted into an L-shaped angle insertion hole to adjust the distance and at the same time tighten and fix with a nut while adjusting the tension. The rod-shaped member is
A member having either one of an end formed with a screw groove on the outer surface or an end formed in a flat plate shape;
A member having the other end of the end formed with a screw groove on the outer surface or the end formed in a flat plate shape,
Formed on a screw cylinder and a screw rod of different diameters,
5. The anchor bolt position correcting structure according to claim 3, wherein the screw rod is screwed into a screw cylinder and is connected to be extendable. The L-shaped angle is
The anchor bolt position correcting structure according to any one of claims 3 to 5, wherein a directivity angle of a rod-shaped member that is bent to an L-shaped angle is adjusted by bending the L-shaped angle. Insert the threaded ends of the U-bolt fastened to the reinforcing bar into the notch groove provided on one side of the L-shaped angle, and fix it by tightening with a nut.
Insert one end where the thread groove of the rod-shaped member is formed in the insertion hole provided on the other surface of the L-shaped angle,
The insertion hole provided in the flat plate-like end formed at the other end of the rod-shaped member is overlapped with the through-hole formed in the template and screwed,
A method for correcting the position of an anchor bolt, wherein a rod-like member is inserted into an L-shaped angle insertion hole to adjust the distance and at the same time tighten and fix with a nut while adjusting the tension. Insert the threaded ends of the U-bolt fastened to the reinforcing bar into the notch groove provided on one side of the L-shaped angle, and fix it by tightening with a nut.
Insert the clamp bolt into the insertion hole provided at the flat plate end formed at the other end of the rod-shaped member,
The template is sandwiched between the clamps,
The clamp bolt is screwed to press the template so as to press the template together with the flat plate-like end of the rod-shaped member,
Insert one end where the thread groove of the rod-shaped member is formed in the insertion hole provided on the other surface of the L-shaped angle,
A method for correcting the position of an anchor bolt, wherein a rod-like member is inserted into an L-shaped angle insertion hole to adjust the distance and at the same time tighten and fix with a nut while adjusting the tension.

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