JP2883261B2 - Adjustment structure of steel column joints - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for adjusting a joint of a steel column of a structure, and more particularly, to one of an upper end of a constructed column and a lower end of a column to be constructed. It is easy to adjust the re-installation and misalignment of the part to be joined by the so-called sheath tube method, which is a surrounding part, and the other of the upper end and the lower end is an insertion part which can enter the surrounding part. The adjustment structure that can be used.

[0002]

2. Description of the Related Art When joining steel columns using a sheath tube method,
For example, the upper end of a post already built is the bayonet, the lower end of the post to be built is the enclosure,
The surrounding portion of the pillar to be constructed is lowered so as to surround the insertion portion, and as a result, the insertion portion enters the surrounding portion, and the pillar to be constructed is erected on the constructed pillar. Thereafter, when the vertical accuracy is obtained by re-installing, as shown in FIG. 3, each of the enclosing pieces of the enclosing portion 11 at the lower end of the pillar 10 to be constructed is screwed into each other at intervals vertically. The bolt 12 is used.

[0003] Re-installation is performed by using two bolts 1
2 is screwed with a wrench 13 to press the insertion portion 14 that has entered the enclosing portion 11 into the insertion piece corresponding to each enclosing piece, while the laser light from the laser emitting device 15 placed on the floor is And adjusting the degree of tightening by the wrench 13 while watching the display on the display device 17 connected to the light receiver 16.

[0004]

The two bolts are:
It is effective to obtain the vertical accuracy of the pillar to be constructed, since it is located vertically at the center of each enclosing piece. However, one surface of the pillar to be constructed and the pillar already constructed This is not effective for adjusting the deviation from the surface that is to be located on the extension of the above-mentioned surface, that is, the misalignment.

SUMMARY OF THE INVENTION An object of the present invention is to provide an adjustment structure of a joint of a steel column which can effectively perform re-installation and misalignment with a simple structure.

[0006]

SUMMARY OF THE INVENTION The present invention is directed to a method of forming a required number of enclosing pieces at one of the upper end of a constructed steel column and the lower end of a steel column to be constructed. Adjustment of a joint of a steel column having a surrounding portion having an upper end portion and a lower end portion having a plug-in piece corresponding to the surrounding piece, and having a plug-in portion capable of entering the surrounding portion. Structure. The adjustment structure includes at least two horizontally spaced bolts screwed into each of the enclosures and pressed against the bayonet corresponding to each of the enclosures, and screwed into each of the enclosures. And at least one bolt pressed against the insertion piece corresponding to each of the surrounding pieces. The at least one bolt is vertically spaced from the at least two bolts.

After the pillar to be constructed has been built into the constructed pillar, at least two horizontally spaced bolts of each enclosure are tightened with a wrench and pressed against the corresponding insert. In this way, firstly, misalignment is performed. Thereafter, rebuilding is performed using at least one bolt vertically spaced from the two bolts. When a slight misalignment occurs due to rebuilding, the misalignment is performed again.

[0008] A minimum of three bolts are screwed into each of the enclosing pieces of the enclosing portion, so that re-installation and misalignment can be performed with a simple structure.

The enclosing portion is at the upper end of the constructed column, the constructed column is welded to a beam having a diaphragm, and the plug-in portion is formed of the column to be constructed from here. It is preferable that it has a length at a lower end and a predetermined distance from the diaphragm when the insertion portion is inserted into the surrounding portion.

Prior to the installation of the pillar to be constructed, a shim having a thickness equal to the above-mentioned interval is placed on the diaphragm, and the pillar is built. Thereby, the level of the joint portion of the pillar can be adjusted. To adjust the level of the joint, use shims with different thicknesses.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS.
One of the upper end 21 of the constructed steel column 20 and the lower end 23 of the steel column 22 to be constructed from now is defined as an enclosing portion, and the other of the upper end 21 and the lower end 23 is defined as the surrounding portion. Adjusting the joint portion as a plug-in portion that can enter the enclosing portion, at least two horizontal spaced portions are provided.
There are two bolts 26 and at least one bolt 28 spaced from the bolts 26 in the vertical direction.

In the illustrated embodiment, the upper end 21 of the post 20 already constructed is the surrounding portion, and the lower end 23 of the post 22 to be constructed is the insertion portion. Each pillar is a hollow body having a substantially square cross section. for that reason,
The surrounding part 21 has four surrounding pieces 21A, 21B, 21C, 2
1D, and the insertion part 23 has four insertion pieces 23A, 2
3B, 23C and 23D. These insertion pieces are located in this order corresponding to each of the surrounding pieces when the insertion part 23 is inserted into the surrounding part 21.

Each of the surrounding pieces of the surrounding portion 21 has a flat outer surface and an inner surface. On the other hand, the insertion portion 23 is a regulating portion 30 having a square cross section and fitted to the inner surface of the surrounding portion 21 to a slight clearance, and two ribs 32 welded at right angles to each other. And two ribs 32 made of a plate material extending downward from the restricting portion 30 and four receiving plates 34 welded to the outer surfaces of the ribs 32, respectively.

The restricting portion 30 extends to a column portion 31 above the insertion portion 23 and is welded thereto.
The outer surface of each of the two ribs 32 is an inclined surface 36 separated from the enclosing piece at a portion deviating from the regulating portion 30, a straight face 37 continues below the inclined surface 36, and further, an inclined surface 38 separated from the enclosing piece continues. A contact surface 39 connecting the two inclined surfaces 38 is provided. The contact surface 39 is preferably a curved surface slightly curved downward.
The inclined surface 36 and the straight face 37 of each rib 32 are
When the receiving plate 34 is welded thereto, the outer surface of the upper end of the receiving plate 34
On the same surface as the outer surface of the. The inclined surface 38 is on the same surface as the outer surface of the welded receiving plate 34. Side rib 4
0 is welded to the rib 32 at the level of a bolt 28 described later. As a result of forming the insertion portion 23 as described above,
The restricting portion 30 and each receiving plate 34 are insertion pieces.

In the embodiment shown, the assembled column 20 is welded to a beam 42 having a diaphragm 43. on the other hand,
When the insertion portion 23 is inserted into the surrounding portion 21 and the column 22 is placed on the column 20, the contact portion 39 at the lower end of the insertion portion 23 of the column 22 to be constructed is spaced a predetermined distance D from the diaphragm 43. To position. This interval D is set to, for example, 5 mm. According to this structure, the level of the joining portion can be adjusted by interposing one or a plurality of shims having a thickness of, for example, 5 mm in the space.
However, the upper end of the constructed pillar 20 is used as the insertion portion,
The lower end of the pillar 22 to be constructed can also be an enclosure.

The two bolts 26 are screwed into respective encircling pieces corresponding to the restricting portions 30 of the plug-in portion when the plug-in portion 23 is inserted into the enclosing portion 21. It is protruding. Therefore, when the bolt 26 is screwed in, the tip of the bolt 26 is pressed against the outer surface of the regulating portion 30 which is the insertion piece. Although a plurality of bolts 26 are required, it is preferable that two bolts 26 are provided as shown. The misalignment between the columns 22 and 20 can be adjusted most efficiently and reliably by the two bolts 26.

The bolt 28 is screwed into each of the enclosing pieces, and its tip protrudes toward a receiving plate 34 as an insertion piece. Therefore, when the bolt 28 is screwed in, the tip of the bolt 28 is pressed against the receiving plate 34.
At least one bolt 28 is required, but is preferably one as shown. Since the bolts 28 are vertically spaced from the bolts 26, the same result as two bolts 28 for rebuilding are vertically spaced apart from each other. And the bolt 26.

Prior to installing the pillar 22 to be constructed on the constructed pillar 20, the beam diaphragm 43 is required.
Place the shim of the required thickness on the
0 into the surrounding part 21. After that, the two bolts 26 of each enclosure piece are tightened with a wrench and pressed against the corresponding insertion part, that is, the regulation part 30, so that the columns 22 and 20 are misaligned. When the misalignment is completed, the locking nut 27 is turned and pressed against the outer surface of each enclosing piece. After that, rebuilding is performed using the bolt 28. this is,
This is performed according to the method shown in FIG. When rebuilding is complete,
Rotate the locking nut 27 and press it against the outer surface of each enclosure. When a slight misalignment occurs due to rebuilding,
Loosen the nut 27 and adjust the position of the bolt 26 again to make misalignment.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a structure for adjusting a joint of steel columns according to the present invention.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is a schematic view showing rebuilding.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 20 Constructed pillar 21 Surrounding part 21A, 21B, 21C, 21D Surrounding piece 22 Pillar to be constructed from now 23 Insertion part 23A, 23B, 23C, 23D Insertion piece 26, 28 Bolt 42 Beam 43 Diaphragm

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Mitsuhiro Naito 2-1-1 Honohara, Toyokawa-shi, Aichi Pref. 3-8201 (JP, U) (58) Fields studied (Int. Cl. ⁶ , DB name) E04G 21/18 E04B 1/24

Claims (2)

(57) [Claims] 1. An enclosure having a required number of enclosing pieces, wherein one of an upper end of a constructed steel column and a lower end of a steel column to be constructed is formed. An adjustment structure for a joint of a steel column having a plug-in portion that can enter the enclosure, the other of the lower ends having a plug-in corresponding to the enclosure, and screwed into each of the enclosures. And at least two horizontally spaced bolts pressed against the inserts corresponding to the respective enclosures, and screwed into the respective enclosures and corresponding to the respective enclosures At least one bolt pressed against the insert,
The structure for adjusting a joint of a steel column, wherein the three bolts are vertically spaced from the at least two bolts. 2. The enclosing part is at the upper end of the constructed pillar, the constructed pillar is welded to a beam having a diaphragm, and the plug-in part is a pillar to be constructed therefrom. The joint of a steel column according to claim 1, wherein the lower end has a predetermined distance from the diaphragm when the insertion portion is inserted into the surrounding portion. Construction.