JP3348112B2 - Column base fixing device and column base fixing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pedestal fixing device and a pedestal fixing method which are applied when a support such as a handrail is attached to a building having a concrete frame, for example.

[0002]

2. Description of the Related Art FIG. 7 shows an example of a method of erecting a handrail provided on a veranda of a condominium, for example, with respect to a concrete frame. Is a hole formed by inserting the concrete frame a, d is an anchor installed at the bottom of the hole c, e is a connecting member welded to the anchor d, and f is a connection between the connecting member e and the welded column b. For the sheath b
Is fitted and fixed to this sheath tube f. g is a mortar filled in the hole c after the support b is set up.

[0003]

In the above-mentioned conventional method, there are many operations of different types, such as a concrete hanging operation, a welding operation, and a mortar filling operation. Because it is easy to get worse and the preparation function corresponding to the accuracy error of the concrete body is poor,
There was a problem that the installation accuracy of the columns was not good.

[0004]

In order to solve the above-mentioned problems, according to the present invention, the upper surface is formed to be curved to a middle height, and the curved surface is preferably provided with irregularities at the center of the lower pedestal. A long hole for penetrating the anchor bolt and a counterbore around the hole are formed, and an anchor bolt penetrating the long hole of the lower pedestal is planted on the surface to be attached, and screwed to the anchor bolt to screw the bolt. The first placed in the counterbore
The lower pedestal can be fixed to the surface to be attached by the nut of the lower pedestal, and a boss portion for column base fitting is provided on a seat plate having a concave curved surface as a bottom surface fitted with the upper surface of the lower pedestal, and preferably the bottom surface is provided with Providing irregularities to be fitted to the irregularities provided on the lower pedestal, further providing a hole for penetrating the anchor bolt in the center to form an upper pedestal, and superimposing the upper pedestal on the lower pedestal to form an upper part of the anchor bolt The column base fixing device is configured to be fixed on the lower pedestal by the second nut screwed into the column base.

[0005] In the column base fixing method of the present invention, an anchor bolt is implanted on the surface to which the column base fixing device of the present invention is mounted, and the lower pedestal is fitted to the anchor bolt. The lower pedestal is fixed by a first nut that is screwed into the anchor bolt and disposed in the counterbore, and the upper pedestal is fitted on the lower bolt on the lower pedestal and overlapped with the anchor bolt. It is fixed to the lower pedestal by a nut screwed on the upper part of the bolt, and the pedestal is inserted into the boss of the upper pedestal and fixed.

[0006]

As described above, in the present invention, the work on the concrete skeleton is only the work of setting up the anchor bolts, and the verticality of the columns is freely adjusted by sliding the overlapping portion between the lower pedestal and the upper pedestal. it can. In particular, in the present invention, since uneven portions are provided so as to be fitted to each other in the overlapping portion of the lower pedestal and the upper pedestal, while enabling fine adjustment by adjusting the fitting phase of the uneven portions, and after once overlapping, Since the fitting phase between the upper and lower pedestals does not shift due to the fitting of the concave and convex portions, the holding of the column is ensured. Therefore, according to the present invention, since the concrete body is not required to be suspended, welded, or filled with mortar, the construction is simplified, the work efficiency is improved, and the adjustment of the mounting position and the verticality of the column is easy. Therefore, the accuracy of the support columns can be improved.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the figure, 1 is a concrete frame of a veranda of a condominium, 2 is a support of a handrail, 3 is a skirt extending over the upper end of the support 2, 4 is a lower pier extending over the lower portion of the support 2, 5 is a hood 3 and a lower pier 4. Stands juxtaposed at appropriate intervals.

In the present embodiment, as shown in detail in FIG. 3, the upper surface 6a is formed to have a semi-curved shape by being curved to a middle height, and a serrated uneven portion 6b is formed in the central zone of the curved surface 6a. A long hole 6c for an anchor bolt and a counterbore 6d around the hole 6c at the center of the curved surface 6a.
A concrete frame 1, which is an attachment surface of a column-base fixing device, is formed by an anchor bolt 7 (see FIG. 2) in which the lower pedestal 6 is inserted through the elongated hole 6c, a washer 8, and a nut 9 as a first nut. So that it can be fixed to Although not shown, it may be fixed between the washer 8 and the nut 9 via a spring washer or the like.

The recesses 6e and 6f provided on the bottom surface of the lower pedestal 6
Is for draining water. In order to implant the anchor bolts 7 in the concrete skeleton 1, first, a hole is drilled in the concrete skeleton 1, and a lower portion of the bolt 7 may be inserted into the hole with an adhesive 10.

As shown in detail in FIGS. 4 and 5,
A boss 11c for fitting a column base is provided on a seat plate 11b having a bottom surface 11a as a concave curved surface that fits with an upper surface 6a of the lower pedestal 6, and irregularities provided on the lower pedestal 6 in a central band of the bottom surface 11a. An upper pedestal 11 is formed by providing an unevenness 11d to be fitted with 6b and a hole 11e for penetrating the anchor bolt at the center portion. 7 (see FIG. 2), and a nut as a second nut is
The screw 13 is screwed to fix the upper pedestal 11, and the column base of the column 2 can be fitted and fixed to the boss 11c.
Although not shown, a washer and a spring washer are preferably provided between the washer 12 and the nut 13.

Reference numeral 11f denotes a pedestal insertion groove provided so as to be recessed downward from the upper surface of the angular boss portion 11c, and 11g denotes a boss portion 11c.
screw holes, two on each of the three sides of the outer wall of c, 11
h is a drainage hole provided at the bottom of the column base insertion groove 11f, and 11i is a recessed portion provided on the bottom surface for undercut.

The column base of the column 2 is inserted into a column base insertion groove 11f, and a set screw 14 is screwed into a screw hole 11g as shown in FIG.
It may be fixed by screwing into the groove, and at this time, an adhesive may be injected into the groove 11f. As shown in FIG. 6, it is preferable that ribs 2a and 2b project from the inner surface of the support column 2, and the back surface of the rib 2a is pressed by the set screw 14.

In order to fix a column pedestal using the column pedestal fixing device, first, as shown in FIG. 2, an anchor bolt 7 is planted on a concrete frame 1 which is an attachment surface of the column pedestal fixing device. The lower pedestal 6 is fitted to the anchor bolt 7 and a nut 9 screwed to the anchor bolt 7 is provided.
And the upper pedestal 11 is fixed on the lower pedestal 6.
Is fixed to the anchor bolt 7 by a nut 13 screwed into the upper part of the anchor bolt 7, and the column base 2 is inserted into the boss 6c of the upper pedestal 6 and fixed. In this embodiment, the support of the handrail is taken as an example. However, the support may be used for fixing the support of the protective fence. In this case, in order to increase the strength, the pedestal is enlarged, and a plurality of bolt through holes are provided and fixed. Good to do.

[0014]

As described above, in the present invention, the work on the concrete frame 1 is only the work of setting up the anchor bolts 7, and the verticality of the column 2 is
It can be adjusted freely by sliding the overlapped portion between the pedestal and the upper pedestal 11. In particular, in the present invention, the uneven portions 6b and 11d which are fitted to each other are provided in the overlapping portion of the lower pedestal 6 and the upper pedestal 11, so that fine adjustment can be performed by adjusting the fitting phase of the serrated unevenness 6b and 11d. And once polymerized,
Since the fitting phases between the upper and lower pedestals 6 and 11 are not shifted by the fitting of the irregularities 6b and 11d, the holding of the column 2 is ensured. Therefore, according to the present invention, since the suspension work, the welding work, and the mortar filling work of the concrete skeleton 1 are not required, the construction is simplified, the work efficiency is improved, and the adjustment of the mounting position and the verticality of the support pillar are performed. Since it is easy, an excellent effect of improving the accuracy of erection of the columns can be obtained.

Further, according to the present invention, the lower pedestal 6 and the upper pedestal 11 can be fixed by one anchor bolt 7, so that the number of constituent members is reduced and the assembling work is facilitated. Since the nut and the nut are not exposed to the outside, the effect of improving the appearance can be obtained.

[Brief description of the drawings]

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

FIG. 2 is an elevational view showing a cross section of the support column of FIG. 1;

3A is a front view of the lower pedestal, FIG. 3B is a plan view thereof, FIG. 3C is a rear view, FIG. 3D is a bottom view, and FIG. ) Is a left side view of (a), and (f) is
FIG. 3A is a sectional view taken along line AA of FIG.

4A is a front view of an upper pedestal, FIG. 4B is a plan view thereof, FIG. 4C is a rear view, FIG. 4D is a bottom view, and FIG. () Is a left side view of (a).

5 (a) is a vertical sectional view taken along line BB of FIG. 4 (b), and FIG. 5 (b) is a vertical sectional view taken along line CC of FIG. 4 (b).

FIG. 6 is a plan view of the column shown in FIG. 2;

FIG. 7 is an elevational sectional view showing a conventional method of arranging columns.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Concrete frame 2 Prop 3 Kasagi 4 Lower beam 5 Stand 6 Lower pedestal 6a Upper surface (curved surface) 6b Irregularity 6c Long hole for anchor bolt 6d Counterbore hole 6e, 6f Crevice for draining 7 Anchor bolt 8 Washer 9 Nut 10 Adhesive 11 Upper pedestal 11a Bottom surface 11b Seat plate 11c Boss portion 11d Irregularity 11e Hole 11f Column base insertion groove 11g Screw hole 11h Drain hole 11i Depressed portion 12 Washer 13 Nut 14 Set screw

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hideo Yoshioka 7-17-16 Oshima, Koto-ku, Tokyo (56) References JP-A-1-154952 (JP, A) Japanese Utility Model Application Showa 64-53331 (JP, U ) Japanese Patent Publication No. 54-3545 (JP, B1) Jpn. 4-33310 (JP, Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04F 11/18

Claims (3)

(57) [Claims] An upper surface is formed to be curved to a middle height, and a long hole for penetrating an anchor bolt planted on an attachment surface on which the column fixing device is mounted, and a peripheral hole therearound. A lower pedestal having a counterbore formed therein, screwed to an anchor bolt passing through the slot, and fixed to the mounting surface by a first nut disposed in the counterbore; A boss portion for column base fitting is provided on a seat plate having a concave curved surface fitted with the upper surface as a bottom surface, and a hole for penetrating the anchor bolt is provided and formed. An upper pedestal secured to the lower pedestal by a second nut screwed onto an upper portion of the anchor bolt that passes through a hole. 2. An unevenness is provided on the upper surface of the lower pedestal, and an unevenness is provided on the bottom surface of the upper pedestal so as to be fitted with the unevenness of the lower pedestal.
The column base fixing device according to claim 1. 3. An anchor bolt is implanted on an attachment surface on which the column base fixing device according to claim 1 is mounted, and a lower pedestal of the column base fixing device is fitted to the anchor bolt, The upper pedestal of the pedestal fixing device is fitted to the anchor bolt and is fixed on the lower pedestal by screwing the anchor bolt and fixing the first pedestal fixing device with the first nut disposed in the counterbore. And a second nut screwed onto an upper portion of the anchor bolt, and is fixed on the lower pedestal, and a pedestal is inserted and fixed in a boss portion of the upper pedestal. A method of fixing a column pedestal using the column pedestal fixing device according to 1 or 2.