JPH06346462A - Embedding work of anchor bolt and guide plate for the work - Google Patents

Abstract

PURPOSE:To easily, rapidly, and economically carry out an embedding work and enhance the embedding accuracy. CONSTITUTION:The upper end of an anchor bolt 2 is inserted in a pierced hole 3, a guide plate 1 provided with a guide pipe 4 at the pierced hole 3, and the guide pipe 4. The guide plate 1 is kept horizontal at the embedding position, directing the embedding part of the anchor bolts 2 downward and then concrete 13 is poured up to an appropriate level of the anchor bolts 2 and hardened. Or, when concrete 13 is poured up to an appropriate level of the guide pipes 4, the guide plate 1 and the guide pipes 4 are removed from the upper end of anchor bolts by the time when the concrete 12 is hardened and the removed guide plate 1 is turned upside down and the pierced holes 3 are fitted to the upper ends of anchor bolts. Then, the anchor bolts are positioned and fixed to harden concrete.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for burying anchor bolts to be buried in concrete foundations for constructing various structures and a guide plate used for the burying method. It is characterized by improving the burying accuracy.

[0002]

2. Description of the Related Art Conventionally, when constructing various structures, as a method of burying anchor bolts in the concrete foundations thereof, anchors have been used by using various supports on a discard concrete.
A method in which a bolt is supported, or an anchor bolt is tied to a reinforcing bar framed on a discard concrete with an iron wire or the like to support and then a skeleton concrete is placed is adopted.

In addition, it is conceivable to weld and support the anchor bolts to the reinforcing bars framed on the above-mentioned discard concrete, but it is prohibited because the anchor bolts may be altered depending on the nature of the work.

[0004]

All of the above-mentioned conventional anchor bolt support methods require skill to support the anchor bolt at a predetermined position including the height, and at a predetermined interval in a wide space. It was extremely time-consuming and labor-intensive to bury a large number of anchor bolts.

Further, even if the support of the anchor bolts is completed, the anchors are then poured at the time of pouring the body concrete.
In some cases, the bolt was moved and was not buried in place. Therefore, in the construction that requires accuracy, the construction must be redone or corrected.

The present invention has been made in view of the above circumstances.
It is an object of the present invention to provide an economical anchor bolt burying method and a guide plate used for the construction of the method, which facilitates burying work and improves burial accuracy.

[0007]

In order to achieve the above object, the method of the present invention is an anchor for a guide plate having a through hole through which the upper end of the anchor bolt penetrates and a guide pipe provided in the through hole. The upper end of the bolt is pierced and supported, and the guide plate is horizontally supported at the embedded position with the embedded portion of the anchor bolt facing downward, and the concrete is poured and solidified to the appropriate position of the anchor bolt.

In another invention of the method, the concrete is poured up to an appropriate position of the guide pipe, and while the poured concrete is in a semi-dried state, the guide plate and the guide pipe are connected to the upper end of the anchor bolt. Part, remove the guide plate, turn over the removed guide plate, and insert the through hole into the anchor.
The concrete is solidified while being fitted and fixed to the upper end of the bolt for positioning.

Further, the invention of the guide plate used in the construction of each of the above-mentioned methods comprises a through hole through which the upper end of the anchor bolt penetrates and a guide pipe provided in the through hole.

[0010]

In the present invention, the guide plate 1 having the through hole 3 through which the upper end of the anchor bolt 2 penetrates and the guide pipe 4 provided in the through hole 3 is prepared. The guide plate 1
The through holes 3 and the guide pipes 4 configured as described above are provided in accordance with the number of buried anchor bolts 2 adjacent to each other and the buried interval.

Next, the upper end of the anchor bolt 2 is pierced and supported by the through hole 3 of the guide plate 1 and the guide pipe 4. The supporting is performed by screwing the upper tightening nut 7 onto the male screw 2a portion formed in the upper half of the anchor bolt 2 penetrating the through hole 3 and the guide pipe 4 so as not to drop. Further, if necessary, the lower tightening nut 6 is screwed to completely prevent vertical movement of the anchor bolt 2.

Next, the guide plate 1 supporting the anchor bolt 2 is horizontally supported at the embedded position with the embedded portion of the anchor bolt 2 facing downward. The horizontal support of the guide plate is performed outside the driving portion of the skeleton concrete 13 without being driven from the driving portion.

For example, an outer frame body 9 provided for pouring the skeleton concrete 13 is utilized, a horizontal support member 10 is bridged in parallel between the outer frame bodies 9, and the horizontal support member 1 is provided.
The guide plate 1 is fixed at a predetermined position between 0 and the like.

However, an adjustable support base for supporting both ends of the horizontal support member 10 may be separately provided. Also,
When the horizontal support member 10 is long, it is desirable to appropriately provide a support rod or the like at an intermediate portion to prevent the horizontal support member 10 from bending.

After that, the skeleton concrete 13 is poured, but according to the present invention, since the anchor bolt 2 is fixedly supported at a fixed position by the guide plate 1 and the guide pipe 4, the skeleton concrete that has been poured thereinto is fixed. -It is correctly erected and buried at a predetermined position without being tilted or moved by the toe 13.

Incidentally, the skeleton concrete 13 may be poured into an appropriate position of the guide pipe 4, and in that case, the skeleton concrete 13 is in a semi-dried state, and the guide plate 1 and the guide pipe 13 are in the state of being semi-dried. 4 is removed from the upper end of the anchor bolt 2 (see FIG. 5), the removed guide plate 1 is turned over, and the through hole 3 is fitted and fixed to the upper end of the anchor bolt 2 (see FIG. 6). The accurate positioning is performed, and if the skeleton concrete 13 is allowed to solidify as it is, the anchor bolt 2 is embedded at a fixed position.

According to the present invention, the area for burying the anchor bolt 2 is large, and even if there are a large number of anchor bolts 2 to be buried, the long horizontal support member 10 can be bridged to facilitate the burial.

[0018]

EXAMPLES An example of the present invention will be described in detail below. FIG. 1 is a perspective view showing an anchor bolt setting process,
2 is an exploded view of the main part, FIG. 3 is a vertical cross-sectional view showing the solidified state of the skeleton concrete being poured, FIG. 4 is a vertical cross-sectional view showing the half-dried state of the skeleton concrete being poured, and FIG. 5 is a guide. FIG. 6 is a vertical sectional view showing a state where the plate and the guide pipe are removed, and FIG. 6 is a vertical sectional view showing a positioning state by the guide plate.

First, the guide plate 1 of the present invention will be described. The guide plate 1 is made of an iron plate or the like, and is formed with a through hole 3 through which the upper end portion of the anchor bolt 2 penetrates, and a guide pipe 4 is provided in each of the through hole 3 portions.

The through holes 3 and the guide pipes 4 are provided according to the number of buried anchor bolts 2 and the buried space. Further, the guide pipe 4 is of a thickness such that when the upper end portion of the anchor bolt 2 to be buried is penetrated, the penetrated anchor bolt 2 does not cause rattling. Is attached to each of the through holes 3 by welding or the like. In the figure, 5 is a mounting hole, and 15 is a handle.

Next, the invention of the method will be described. First, the guide pipe 4 and the through hole 3 of the guide plate 1
The upper end of the anchor bolt 2 is pierced and supported. In the embodiment shown in the drawings, a lower tightening nut 6 is screwed into a predetermined position of a male screw 2a formed on the anchor bolt 2, and the upper end portion thereof penetrates the guide pipe 4 and the through hole 3 of the guide plate 1, An upper tightening nut 7 is screwed on and supported by the protruding male screw 2a.

Next, the guide plate 1 is horizontally supported at the embedded position with the embedded portion of the anchor bolt 1 facing downward. For horizontal support of the guide plate 1, for example, as shown in FIG. 1, the outer frame body 9 provided for placing the skeleton concrete 13 is used as a stand portion, and the outer frame body 9 is provided between the outer frame bodies 9. A horizontal support member 10 made of H steel or the like is bridged in parallel, a guide plate 1 penetratingly supporting the anchor bolt 2 is placed at a predetermined position between the horizontal support members 10, and the mounting hole 5 is used. Then, it is fixed with bolts 11.

In the figure, 12 is a reinforcing bar framed on the discard concrete 8. Next, as shown in FIG. 3, the skeleton concrete 13 is poured to an appropriate position of the anchor bolt 2. Then, after confirming the solidification of the skeleton concrete 13, the bolt 11 and the upper tightening nut 7 are removed, the guide plate 1 and the guide pipe 4 are removed, and further the lower tightening nut 6 is also removed. The embedding of the bolt 2 is completed.

According to the above method, the guide plate 1 and
The guide pipe 4 provided there does not move the anchor bolt 2 even when the skeleton concrete 13 is poured, and the anchor bolt 2 is fixed at a fixed position until the solidification is completed, so that the burying accuracy is improved. To be

Further, a plurality of anchor bolts 2 adjacent to each other
Can be easily set and embedded in one guide plate 1 at a time, and the setting work in a wide range can be performed mechanically without any skill, which is economical.

According to the above method, a relatively long anchor bolt 2 must be prepared, and since the projecting portion from the skeleton concrete 13 is long, the upper portion is cut off when constructing various structures. There are cases where you have to do it.

However, the guide pipe 4 is made short,
The horizontal support position of the guide plate 1 may be lowered,
If the guide pipe 4 is too short, the guide function is weakened, and it may not be possible to lower the horizontal support position of the guide plate 1 depending on the site.

Then, the invention of claim 2 will be described below. According to the second aspect of the present invention, as shown in FIG. 4, the skeleton concrete 13 is poured to an appropriate position of the guide pipe 4. However, if it is solidified as it is, the guide pipe 4 and the guide plate 1 cannot be removed.

Therefore, after pouring the body concrete 13 into the semi-dried state, as shown in FIG.
The guide 1 and the guide pipe 4 are removed. However, when the guide plate 1 and the guide pipe 4 are removed, the anchor bolt 2 is a semi-dry body concrete 1
It is considered that there is a possibility that instability will occur and position shift will occur in the case of 3. Further, the anchor bolt 2 may be moved when the guide plate 1 and the guide pipe 4 are removed.

Therefore, as shown in FIG. 6, the removed guide plate 1 is turned upside down so that the through hole 3 is fitted to the upper end of the anchor bolt 2, and the horizontal support member 10 is fixed by the bolt 11.
Fixed to. As a result, the anchor bolt 2 is positioned, and at the same time, the skeleton concrete 13 is solidified.

The guide pipe 4 shown in FIG.
The space 14 after the removal can be filled by pressing the poured body concrete 13 in a semi-dried state with a trowel or the like, and may be filled with a separately prepared mortar later. Is.

[0032]

EFFECTS OF THE INVENTION According to the method of the present invention, the anchor bolt burying work can be performed easily and quickly without requiring any skill, and it is economical, and accurate burial is possible and the burial accuracy is improved. Is planned. Furthermore, according to the guide plate of the present invention, the above method can be easily carried out.

[Brief description of drawings]

FIG. 1 is a perspective view showing a set state of anchor bolts according to the present invention.

FIG. 2 is an exploded view of a main part of the present invention.

FIG. 3 is a vertical cross-sectional view showing a state in which a skeleton concrete is poured and solidified.

FIG. 4 is a vertical cross-sectional view showing a state in which another skeleton concrete is poured and half-dried.

5 is a vertical cross-sectional view showing a state in which the guide plate and the guide pipe are removed from the state of FIG.

FIG. 6 is a vertical cross-sectional view showing a positioning state by a guide plate.

[Explanation of symbols]

 1 Guide plate 2 Anchor bolt 3 Through hole 4 Guide pipe

Claims (3)

[Claims] 1. An upper end of the anchor bolt is penetrated and supported by a through hole through which the upper end of the anchor bolt penetrates and a guide plate provided with a guide pipe in the through hole, and the embedded portion of the anchor bolt is made downward. An anchor bolt embedding method characterized in that the guide plate is horizontally supported at the embedding position and the concrete is poured into the anchor bolt at a proper position to solidify. 2. An anchor bolt upper end penetrates and is supported by a through hole through which an upper end portion of the anchor bolt penetrates and a guide plate provided with a guide pipe in the through hole portion, and the embedded portion of the anchor bolt is made downward. The guide plate is horizontally supported at the burying position, the concrete is poured to the proper position of the guide pipe, and the guide plate and the guide pipe are anchor bolted while the concrete is in a semi-dried state. An anchor bolt embedding method characterized in that the guide plate is removed from the upper end, the removed guide plate is turned upside down, and the through hole is fitted and fixed to the upper end of the anchor bolt to perform positioning while solidifying the concrete. 3. A guide plate used for construction of an anchor bolt burying method, wherein a through hole through which an upper end portion of the anchor bolt penetrates and a guide pipe are provided in the through hole portion.