JPH033015B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a device for installing pillar bases of a house on a foundation.

(Prior Art) An apparatus shown in FIG. 4 has been developed as one of the apparatuses for installing pillar bases of prefabricated houses on foundations. That is, the frame 40 is placed on the upper surface 2 of the foundation 1 so as to surround the insertion hole 3 formed in the foundation 1.
Then, mortar 5 is inserted into the insertion hole 3 and the frame 40.
Fill with (grout agent). On the other hand, the anchor bolts 20 are attached to the end plates 12 of the column bases 10, and before the mortar 5 hardens, the column bases 10 are lowered while the house unit is suspended by a crane, etc., and the anchor bolts 20 are attached to the mortar 5. the end plate portion 12 is placed on the frame 40. In addition, a configuration similar to this device is
It is also stated in the publication.

(Problems to be Solved by the Invention) In the above configuration, the anchor bolt 20 is attached to the column base 10.
Since it is fixed to the side, the installation work is easy and there is no need to provide an operation port on the column base 10, so the strength of the column base 10 is high, but the insertion hole 3 is fixed to provide the strength of the mortar 5. It is a cylindrical cavity with a volume larger than that, and has a larger diameter than the anchor bolt 20, so there is no reference for horizontally positioning the column base 10 during installation, and the column base 10 is placed on the foundation 1. could not be installed accurately in the desired position,
Further, the work for positioning was complicated.

(Means for Solving the Problems) This invention has been made to solve the above problems, and its gist is that: an insertion hole is formed in the foundation; In the house installation device, the house installation device includes a fixed anchor bolt and a grouting agent filled in the insertion hole, and a guide plate is fixed to the upper surface of the foundation, and the upper end opening of the insertion hole is covered by the guide plate. In the house installation device, the guide plate is formed with an insertion hole having approximately the same diameter as or slightly larger than the outer diameter of the anchor bolt, and the anchor bolt is inserted into the insertion hole.

(Operation) Forms an insertion hole in the foundation. A guide plate is fixed to the upper surface of the foundation so as to cover the upper end opening of this insertion hole. Next, the insertion hole is filled with a grouting agent. On the other hand, anchor bolts are installed protruding from the house. Positioning is performed by inserting this anchor bolt into an insertion hole formed in the guide plate. Then, the anchor bolt is buried in the grout filled in the insertion hole of the foundation.

(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 and 2.

First, each member constituting the house column pedestal installation device will be described in detail. The foundation 1 is made of concrete or the like, and has an insertion hole 3 substantially perpendicular to its upper surface 2. This insertion hole 3 is made of mortar 5.
In order to increase the strength of the grouting agent, it is a cylindrical cavity with a volume above a certain level, with the upper end open and the lower end closed.

Reference numeral 10 in FIG. 1 is, for example, a column base of a house unit of a prefabricated house, and is designed to be installed on the foundation 1. The column base 10 is made of steel and has a cross section of 4
It has a rectangular cylindrical shape, and an end plate portion 12 is fixed to a lower end opening 11 by welding or the like. This end plate portion 12
An insertion hole 13 is formed in the center of the hole 13, and a nut 14 is welded to the upper surface 12a of the hole 13 in correspondence with the insertion hole 13.

An anchor bolt 20 is attached to the column base 10. This anchor bolt 20 is rod-shaped and has a threaded portion 21 formed at its upper portion.
This threaded portion 21 is adapted to be screwed into the nut 14.

A guide plate 30 is fixed to the upper surface 2 of the foundation 1. This guide plate 30 is formed into a rectangular shape narrower than the width of the upper surface 2, and is adapted to cover the upper end opening 4 of the insertion hole 3. In the center of the guide plate 30,
An insertion hole 31 is formed that has approximately the same diameter as or slightly larger than the outer diameter of the anchor bolt 20. Two slits 32 are formed in such an insertion hole 31. Further, on both sides of this insertion hole 31, small holes 33, 33 for inserting a nail 35 (fixing tool) are formed.

Further, a frame 40 is placed on the upper surface 2 of the foundation 1 so as to surround the guide plate 30. This frame 40 is made of wood and has a rectangular shape in plan.

In the above configuration, when installing the column base 10 on the foundation 1, the guide plate 30 is fixed to the upper surface 2 with nails 35 so as to cover the upper end opening 4 of the insertion hole 3 of the foundation 1. At this time, the insertion hole 31 of the guide plate 30 is accurately positioned.

Next, a frame 40 is placed around the guide plate 30.
is placed on the upper surface 2 of the foundation 1. Thereafter, the insertion hole 3 and the frame 40 are filled with mortar 5.

On the other hand, the anchor bolt 20 is attached to the end plate portion 12 of the column base 10. That is, anchor bolt 2
The screw portion 21 of No. 0 is inserted into the insertion hole 13 of the end plate portion 12 from below and is screwed into the nut 14. As a result, the anchor bolt 20 projects downward from the end plate portion 12.

After filling the mortar 5 above, this mortar 5
Before the house unit solidifies, the column base 10 is lowered while the house unit is suspended by a crane or the like, and the anchor bolt 20 is inserted into the insertion hole 31 of the guide plate 30. In this way, simply by inserting the anchor bolt 20 into the insertion hole 31 of the guide plate 30, the column base 10 can be easily and accurately positioned at a desired position on the foundation 1. The anchor bolt 20 is guided by the insertion hole 31 and enters the insertion hole 3, and the end plate portion 12 rests on the frame 40. The slits 31, 31 of the guide plate 30 are small;
Moreover, since the insertion hole 3 is sealed by the guide plate 30 and the anchor bolt 20, the mortar 5 in the insertion hole 3 is gradually pressurized as the anchor bolt 20 descends, and the mortar 5 is applied to the circumferential surface of the anchor bolt 20. Ensures close contact. Moreover, when the anchor bolt 20 enters the insertion hole 3, a part of the mortar 5 in the insertion hole 3 overflows into the frame 40 from the slits 31, 31. Further, excess mortar 5 within the frame 40 overflows from the gap between the end plate portions 12 of the frame 40 and escapes to the outside. Note that if the amount of mortar 5 overflowing from the insertion hole 3 into the frame 40 (corresponding to the volume of the anchor bolt 20 inserted into the insertion hole 3) is larger than the space inside the frame 40, the mortar 5
When filling, fill only into the insertion hole 3, and fill the frame 40.
There is no need to fill it inside. The point is that the end plate part 1
The mortar 5 may be filled between the guide plate 2 and the guide plate 30.

Then, as the mortar 5 solidifies, the anchor bolt 20 is supported by the mortar 5.

This invention is not limited to the above embodiments and can be modified in various ways. For example, in the embodiment shown in FIG. 3, the guide plate 20 is fixed by a small anchor bolt 36 (fixing device). Note that the configuration other than the small hole 34 of the guide plate 20 and the shape of the lower end of the small anchor bolt 36 is the same as that of the above embodiment, so the same reference numerals are given and detailed explanation thereof will be omitted. In the foundation 1 of this embodiment, two small anchor bolts 36 are embedded perpendicularly to the upper surface 2 so as to narrow the insertion hole 3. A threaded portion 37 is formed at the upper end of each anchor bolt 36 . In addition, the small hole 3 of the guide plate 30
Since the diameter of the guide plate 4 is larger than the diameter of the threaded portion 37 and there is play between the two, the position can be adjusted by moving the guide plate 30 in the horizontal direction. Then, nuts 38 are tightened on the threaded portions 37 to fix the guide plate 30 to the upper surface 2 of the foundation 1. In addition, the lower end 22 of the anchor bolt 20
is tapered, and the guide plate 3
It is easy to insert into the insertion hole 31 of 0.

(Effects of the Invention) As explained above, in this invention, a guide plate is fixed to the upper surface of the foundation so as to cover the upper end opening of the insertion hole formed in the foundation, and the anchor bolt protruding downward from the house is guided. It is inserted through an insertion hole formed in the plate, and since this insertion hole is used as a reference for positioning the house, the column base can be accurately installed at a desired position on the foundation.

[Brief explanation of the drawing]

1 and 2 show an embodiment of the present invention, and FIG. 1 is a sectional view of a house installation device, and FIG.
The figure is a perspective view of the foundation and the guide plate, FIG. 3 is a sectional view of a house installation device showing another embodiment, and FIG. 4 is a sectional view of a conventional house installation device. 1...Foundation, 2...Top surface, 3...Insertion hole, 4...
...Top opening, 5...Mortar (grout agent), 1
0... Column base, 12... End plate portion, 20... Anchor bolt, 30... Guide plate, 31... Insertion hole.

Claims (1)

[Claims] 1. In a house installation device having an insertion hole formed in the foundation, an anchor bolt protruding downward from the house and inserted into the insertion hole, and a grout filled in the insertion hole, A guide plate is fixed to the upper surface, and this guide plate covers the upper end opening of the insertion hole, and an insertion hole that is approximately the same diameter or slightly larger than the outer diameter of the anchor bolt is formed in this guide plate. A house installation device characterized by having an anchor bolt inserted through a hole.