JPH09100817A - Column base piece - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use one column base piece for any of columns with different inner circumference dimensions by receiving a column lower end while adjusting the inside face of a column receiving cylinder, which is vertically stood on a base, to the outside face of a column. SOLUTION: In fixing of a hollow column 14 onto the upper face of a foundation 12 by means of a column base piece 10, a hole 20 formed in a base 16 is fitted around the outside face of an anchor bolt 18 projected on the upper face of the foundation 12, and on the upper face side of the base 16, a nut 38 is screwed to the anchor bolt 18, so that the column base piece 10 is fixed on the upper face of the foundation 12. On the other hand, in the lower end of the column 14, a bolt insertion hole is formed in the position corresponding to a hole formed in a column receiving cylinder 22, while on the lower end part inside face of the column 14, a nut unshown in the figure is fixed in the position corresponding to the bolt insertion hole. The lower end part of the column 14 is inserted into the column receiving cylinder 22 in the column leg piece 10, a bolt 26 is inserted into insertion holes, which are not shown in the figure, in the column receiving cylinder 22 and the column 14, and the bolt 26 is screwed to the nut unshown in the figure on the inside face of the column 14. Therefore, a single column leg piece can be used for any of a plural kinds of columns.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column base piece, and more particularly to a column base piece for fixing a lower end of a column on a structure such as a foundation or a beam.

[0002]

2. Description of the Related Art An example of a conventional column base piece of this type is disclosed in Japanese Utility Model Application No. 172566/1982. In this conventional technique, the outer surface of the column base piece is covered with the inner surface of the lower end portion of the column, and the both are joined by bolts and nuts.

[0003]

Generally, the outer peripheral dimensions of columns (steel pipes) used in buildings such as houses are standardized throughout the entire building, and the strength of the columns depends on the wall thickness of the columns. It has been adjusted by changing. That is, when increasing the strength of the column, the inner peripheral dimension is reduced while keeping the outer peripheral dimension, while on the other hand, when decreasing the strength of the column,
The outer circumference is left unchanged while the inner circumference is increased.

Therefore, in the prior art in which the outer surface of the piece is covered with the inner surface of the lower end portion of the column, it is necessary to prepare a plurality of column base pieces according to the strength of the column, that is, the inner peripheral dimension, and the number of parts increases. However, there was a problem that the workability was poor and the cost was high. Therefore, a main object of the present invention is to provide a column base piece that can be manufactured at low cost and can be improved in workability.

[0005]

SUMMARY OF THE INVENTION The present invention is a column base piece for fixing the lower end of a column, the base having a hole through which a fixing bolt is inserted, and the outer surface of the column which is upright on the base. Is a column base piece having an inner surface conforming to, and including a column receiving tube that receives the lower end of the column on the inner surface.

[0006]

The fixing bolt is inserted into the hole formed in the base, and the fixing bolt is used to fix the base on a structure such as a foundation or a beam. Then, the lower end of the pillar is inserted into the pillar receiving cylinder, and the pillar receiving cylinder and the pillar are joined together with bolts, nuts and the like.

[0007]

According to the present invention, since the lower ends of the pillars are inserted into the pillar receiving cylinders to join them, the same kind can be applied to pillars having different wall thicknesses, that is, pillars having different inner peripheral dimensions. Column pedestal pieces can be used. Therefore, since it is not necessary to prepare a plurality of types of column base pieces as in the conventional case, the number of parts can be reduced, the workability can be improved, and the cost can be reduced.

The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments with reference to the drawings.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A column base piece 10 of this embodiment shown in FIGS. 1 and 2 is for fixing a column 14 made of a hollow steel tube having a substantially rectangular cross section on the upper surface of a foundation 12 as shown in FIG. And includes a substantially plate-shaped base 16. The base 16 has
Two holes 20 are formed in the upper surface of the base 12 for inserting the protruding anchor bolts 18, and an intermediate surface between the two holes 20 rises from the upper surface of the base 16 and has an inner surface that fits the outer surface of the column 14. The column receiving cylinder 22 having is formed.
That is, the inner surface of the column receiving cylinder 22 is substantially similar to the outer surface of the lower end of the column 14 and has a dimension slightly larger than the outer surface dimension. An opening 24 for discharging condensed water or the like is formed in the lower portion of the front wall of the column receiving cylinder 22, and holes 28 for inserting bolts 26 (FIG. 3) are formed in the left and right walls and the rear wall. To be done.

Brace fixing portions 32 having a substantially U-shaped cross section for fixing one end of a brace (brace) 30 (FIG. 4) are formed on the upper outer surfaces of the left and right walls of the column receiving cylinder 22. 32 and the base 16 are connected by a reinforcing leg portion 34. Further, a hole 38 for inserting the bolt 36 (FIG. 4) is formed in the vertical side (portion having a surface extending in the direction perpendicular to the base 16) 32a of the fixing portion 32. In addition, such a column base piece 10 is formed by welding a plurality of parts made of metal such as iron to each other.

The pillar 14 is used as a foundation 12 using the pillar base piece 10.
When fixed to the upper surface of the base 12, first, as shown in FIG. 3, the holes 20 (FIGS. 1 and 2) formed in the base 16 are first formed.
Is fitted to the outer surface of the anchor bolt 18 protruding to the upper surface of the base bolt 16, and the nut 38 is screwed to the anchor bolt 18 on the upper surface side of the base 16, thereby fixing the pedestal piece 10 to the upper surface of the foundation 12. On the other hand, at the lower end of the pillar 14,
A bolt insertion hole (not shown) is formed at a position corresponding to the hole 28 formed in the column receiving cylinder 22 (FIGS. 1 and 2), and an inner surface of the lower end portion of the column 14 is formed at a position corresponding to a bolt insertion hole (not shown). Fix the nut (not shown) (welding, etc.).

Then, the lower end of the column 14 is inserted into the column receiving cylinder 22 of the column base piece 10, and a bolt 26 is inserted into a hole 28 of the column receiving cylinder 22 and a hole (not shown) of the column 14, and the bolt 26 is inserted into the column. 14 It is screwed into a nut (not shown) on the inner surface. Further, when fixing the brace 30 to the brace fixing portion 32, as shown in FIG. 4, a bolt 36 is inserted through a hole (not shown) of the brace 30 and a hole 38 (FIG. 1) of the fixing portion 32, and the bolt 36 The nut (not shown) is screwed.

According to this embodiment, the pillar 1 is attached to the pillar receiving cylinder 22.
Since the lower end of 4 is inserted, one type of column base piece 10 can handle a plurality of types of columns 14 having different wall thicknesses (that is, different inner peripheral dimensions) according to the column strength. Therefore, a plurality of types of column base pieces 1 as in the past
Since it is not necessary to prepare 0, the number of parts can be reduced,
Workability can be improved and cost can be reduced.

Further, when the pillar 14 is fixed, the pillar 14 becomes self-supporting only by inserting the lower end of the pillar 14 into the pillar receiving cylinder 22, so that the pillar 14 is fixed by the bolt until the pillar receiving cylinder 22 and the pillar 14 are fixed. Need not be temporarily fixed. Therefore, the temporary fixing member and the labor before the main fixing of the pillar 14 is omitted, and the workability is further improved. In the above-described embodiment, the base 16 is accommodated within the width of the base 12. However, as shown in FIG. 5, for example, one widthwise end of the base 16 is projected from the side surface of the base 12. The width or the like of the base 16 may be set so that the portion 16a protruding from the side surface of the foundation 12 receives the joist 40 or the like.

Further, when the column base piece 10 is used at a corner portion, as shown in FIG. 6, the base 16 is formed in a substantially L shape, and the brace fixing portion 32 is arranged in a substantially L shape. Good. Further, in the above-described embodiment, the case where the pillar 14 is fixed to the upper surface of the foundation 12 is shown, but the pillar 1 is fixed to the upper surface of the beam.
The above-mentioned column base piece 10 can be applied as it is also when fixing 4.

Further, in the above-mentioned embodiment, all the four surfaces forming the rectangular cross section of the column receiving cylinder 22 are pre-fixed by, for example, welding, but only one of the surfaces is detachable so as to be fixed. May be. In this case, since the lower end of the pillar 14 can be accommodated in the pillar receiving cylinder 22 from the lateral direction, the pillar 1 does not have to have a sufficient space above the pillar.
Since it is not necessary to lift 4 upward, the pillar 14 can be easily inserted into the pillar receiving cylinder 22.

Further, a bolt hole for a nut (not shown) provided on the inner surface of the pillar 14 is formed at the time of construction, but the bolt hole may be formed in advance as an elongated hole. The column receiving cylinder 22 may be formed as a cutout or a slit that is continuous from the top to the bottom in a part of the circumferential direction.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a plan view of the embodiment of FIG. 1;

FIG. 3 is a perspective view showing a use state of the embodiment in FIG. 1;

FIG. 4 is an illustrative view showing a use state of the embodiment in FIG. 1;

FIG. 5 is an illustrative view showing a modified example of the embodiment in FIG. 1;

FIG. 6 is an illustrative view showing a modified example of the embodiment in FIG. 1;

[Explanation of symbols]

 10 ... Column base piece 12 ... Foundation 14 ... Column 16 ... Base 18 ... Anchor bolt 20, 28, 38 ... Hole 22 ... Column receiving tube 32 ... Brace fixing part

 ─────────────────────────────────────────────────── ─── Continued front page (72) Masamichi Yoshioka, 3-12-12 Minamisenba, Chuo-ku, Osaka City Kubota House Co., Ltd. (72) Yoshiro Kitayama 3-12-12 Minamisenba, Chuo-ku, Osaka Kubota House Within the corporation

Claims (1)

[Claims] 1. A column foot piece for fixing a lower end of a column, comprising: a base having a hole through which a fixing bolt is inserted; and an inner surface which stands upright on the base and fits to an outer surface of the column. And a column base piece including a column receiving cylinder that receives the lower end of the column on the inner surface.