JPH0433283Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a means for accurately setting hollow columns in positions on foundations in various buildings.

(Prior art) Conventionally, as a method for fixing a hollow column made of, for example, a steel pipe to a foundation, a seat plate that extends in the form of a flange around the outer periphery of the hollow column is welded to the lower end of the hollow column, and a seat plate that extends to the outer periphery of the seat plate is welded to the lower end of the hollow column. A plurality of bolt through holes are provided in the section, and a means is provided in which a plurality of anchor bolts are protruded from the base surface at positions corresponding to the bolt through holes. It is generally known that the seat plate is fixed on the foundation by inserting anchor bolts into the holes, and then nuts are screwed onto each anchor bolt to fix the seat plate to the foundation surface.

However, with this conventional method, it is not easy to vertically protrude multiple anchor bolts at positions that accurately correspond to the bolt holes in the seat plate. In many cases, complicated work is required to correct the structure, and due to variations in the height of the foundation surface, it may not be possible to erect multiple columns to the designed height. In this case, the upper end of the anchor bolt and the nut are exposed, spoiling the appearance, and there are drawbacks such as the need for makeup to cover those parts.

(Problems to be Solved by the Invention) The object of the present invention is to provide a means for setting a hollow column in a fixed position in order to eliminate the conventional drawbacks.

(Means for solving the problem) In order to achieve the above purpose, the means for setting the hollow column in the fixed position of the present invention is as follows: A threaded rod screwed together,
a threaded rod with an adjustment nut, the other end of which projects vertically from the seat plate, and an adjustment nut screwed into the projection; a threaded rod with an adjustment nut; and a supporting cylinder having an inner diameter into which the threaded rod can be freely inserted and removed, and into which the adjusting nut cannot be inserted. Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, a seat plate 2 is welded to the lower end surface of the opening of a hollow column 1 made of a steel pipe to close the lower end of the opening, and a female thread block 3 is attached to the center of the seat plate 2 to connect the hollow column 1 and the shaft. The two ends are aligned and welded, one end of the threaded rod 4 is screwed onto this female thread block 3, the other end of the threaded rod is made to protrude perpendicularly from the seat plate 2, and the adjustment nut 5 is screwed onto the protrusion. There is.

On the other hand, a support tube 7 made of a metal pipe is vertically buried in the concrete foundation 6 to which the hollow column 1 is to be fixed, with its open end opening into the surface of the foundation 6. The threaded rod 4 is freely insertable and removable, and the adjusting nut 5 is formed to have an inner diameter that cannot be inserted.

The operation of the setting means in the above example will be explained along with an example of its use. First, while supporting the hollow column 1 vertically with an appropriate support means, insert the lower end of the threaded rod 4 into the support tube 7 of the foundation 6 as shown in the third figure, and then insert the adjustment nut 5 into the support tube 7. The hollow column 1 is brought into contact with the upper end of the opening, thereby setting the hollow column 1 at the planned fixing position on the upper surface of the foundation 6.

Next, wedge blocks 8 with inclined upper surfaces are installed under the seat plate 2 on the upper surface of the foundation 6 in a radial pattern around the threaded rod 4 as shown in the third figure, and then the adjusting nuts 5 are turned with a spanner or the like. Attach the nut to the threaded rod 4
As a result, the lower end of the threaded rod 4 enters the support cylinder 7, and the hollow column 1 is lowered.

The seat plate 2 is attached to the wedge block 8 as shown in the fourth figure...
When it comes in contact with , stop turning the adjusting nut 5 once, check whether the upper end of the hollow column 1 has reached the specified height, and if there is an excess or deficiency, turn the adjusting nut 5.
is turned to raise and lower the hollow column 1 and set it at a fixed position at a predetermined height.

After setting the hollow column, remove wedge block 8...
Then, as shown in Figure 5, cement mortar 9 is filled between the seat plate 2 and the foundation 6 surface. When the mortar 9 hardens, the adjusting nut 5 acts as a stopper to prevent the threaded rod 4 from coming out of the support cylinder 7, thereby fixing the hollow column 1 in an upright position at a predetermined height.

(Effect of the invention) According to the means for setting a hollow column to a fixed position according to the present invention, first, the threaded rod of the hollow column is inserted into the support cylinder of the foundation, so that the hollow column is set at a predetermined fixed position on the upper surface of the foundation. It can be set as well as
By turning the adjustment nut, it is possible to set the fixed position at a predetermined height, and then by using an appropriate fixing method such as filling with mortar, the hollow column can be accurately positioned at a predetermined height on the foundation surface. It can be fixed upright, and has the advantage of being able to be adjusted to a predetermined height, especially when there are variations in height on the foundation surface.Furthermore, the mounting of the seat plate with female threads and the threaded rod to the hollow column is all done at the factory. Since it can be done manually, each part can be installed accurately as designed, eliminating the need for complicated correction work as in the past, improving the efficiency of setting work, and further exposing the lower end of the hollow column. In the case of buildings that are made of steel, the bolts and nuts are not exposed as they were in the past, so there is no need for makeup.

[Brief explanation of the drawing]

The drawings show an example of the present invention. Figure 1 is a partially cutaway front view of a hollow column, Figure 2 is a vertical sectional view of a part of the foundation, the following shows the setting work, and Figure 3 is a hollow column with a foundation surface. FIG. 4 is a vertical cross-sectional view of a portion of the stage at which the fixed position is set at a predetermined height, FIG. 5 is a cross-sectional view of the same at the stage when the fixed position is set at a predetermined height, and FIG. 1...Hollow column, 2...Seat plate, 3...Female thread block, 4...Threaded rod, 5...Adjusting nut, 6...
Concrete foundation, 7...support tube.

Claims (1)

[Scope of Claim for Utility Model Registration] A threaded rod with one end screwed into a female thread provided on a seat plate that closes the lower end surface of an opening of a hollow column,
a threaded rod with an adjustment nut, the other end of which projects vertically from the seat plate, and an adjustment nut screwed into the projection; a threaded rod with an adjustment nut; A means for setting a hollow column to a fixed position, comprising: a support tube which is a tube buried in a hollow column and has an inner diameter into which the threaded rod can be freely inserted and removed, and into which the adjustment nut cannot be inserted.