JPH0726731A - Adjusting jig for joint part of steel frame pillar - Google Patents

Abstract

PURPOSE:To solve the troublesomeness due to the striking of a wedge and the preparation of plural kinds of filler plates having different thickness. CONSTITUTION:An adjusting jig for the joint part between a steel frame pillar 22 after construction and a steel frame pillar 28 to be constructed includes a jig body 36, bolt 38, and a screw means 40. The jig body is equipped with the base part 42 installed on the erection piece 25 of the pillar 22 and two arm pieces 45. Two arm pieces extend in the horizontal direction from the part extending over the base part and are opposed to two pillar surfaces in crossing at right angle at the lower edge part of the pillar 28. The bolt 38 is screwed into two arm pieces, and pressed onto the opposed pillar surfaces of the pillar 28. The screw means 40 is a turn buckle, and screwed with the jig body and the erection piece 31 of the pillar 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for adjusting a joint portion of a steel frame column, and more particularly to a prefabricated steel frame column having an erection piece fixed to the column surface at the upper end thereof, and this construction. The present invention relates to a jig for adjusting a portion to be joined with a steel column to be constructed, which has an erection piece fixed to a column surface of a lower end portion corresponding to the column surface of a completed column.

[0002]

2. Description of the Related Art It is necessary to adjust a joint between an already constructed steel column and a steel column to be constructed so that the column to be constructed can be rebuilt or misaligned. As shown in FIGS. 4 and 5, the erection piece 12 fixed to the pillar surface 11 at the upper end of the constructed pillar 10 and the pillar surface at the lower end of the pillar 13 to be constructed. The erection piece 15 fixed to the pillar surface 14 corresponding to 11 may be used. That is,
Two erection pieces 1 to rebuild
The wedge 16 is driven into the clearance between the two 15 to secure the verticality of the column to be constructed, while the misalignment is made by, for example, the filler plate 17 on the left side of the lower erection piece 12. To the right side of the upper erection piece 15, respectively, further apply the splice plate 19 to each filler plate, screw the nuts through the bolts, and try to build the pillar surface of the pillar already constructed The pillar surface corresponding to the pillar surface of the pillar is located on the same plane.

[0003]

When the wedge is driven in and rebuilt, the wedge may be overdriven. To adjust this, another wedge is installed between the erection pieces provided on the opposite side of the pillar. It is necessary to drive a wedge.
On the other hand, for misalignment, it is necessary to prepare a plurality of types of filler plates having different thicknesses and select one having an appropriate thickness. Furthermore, it is unstable to allow the wedge to support the total weight of the column to be constructed, so suspend the column to be constructed with a crane until the bolts of the column to be constructed are completely tightened. Since it was necessary to bear a part of the load on the crane, there was a loss of crane operation.

The object of the present invention is to drive a wedge,
An object of the present invention is to provide a structure for adjusting a joint portion of a steel frame column, which can eliminate the complexity caused by preparing a plurality of types of filler plates having different thicknesses and can increase the operating time of the crane.

[0005]

According to the present invention, there is provided a prefabricated steel column having a first erection piece fixed to a column surface of an upper end, and the prefabricated column. It is a jig for adjusting a portion to be joined to a column of a steel frame to be constructed, which has a second erection piece fixed to a column surface of a lower end portion corresponding to the column surface. The jig includes a jig body, bolts, and screw means. The jig body includes a base portion and an arm portion having two arm pieces and fixed to the base portion. The base is releasably attachable to the first erection piece, and
When the base is attached to the first erection piece, the base has a portion that extends upward beyond the upper end surface of the constructed pillar. The two arm pieces of the arm portion extend horizontally from a portion extending above the base portion, and
It is formed so as to face the column surface at the lower end of the column to be constructed and another column surface orthogonal to the column surface. The bolt is screwed into each of the two arm pieces of the jig body, and is pressed against the facing column surface of the column to be constructed. The screw means has two screws that can be respectively screwed into the jig body and the second erection piece, and these screws are formed with their directions reversed.

A plurality of adjusting jigs are prepared, and each jig is engaged with the first erection piece of the column already constructed and the second erection piece of the column to be constructed. After building the pillar to be constructed into the already constructed pillar, change the screwing amount of the bolts screwed into each of the two arm pieces of the arm part of the jig body, and move to the pillar surface of the pillar to be constructed from now on. Adjust the pressing force of and make misalignment. After that, the screw means is turned to rebuild the building.

Where the construction can be re-installed depending on the screwing amount of the screw means, changing the screwing amount of the screw means is easier to finely adjust than the one adjusting by driving a wedge, and when the screwing amount is too large, It can be easily corrected by turning the screw means in the opposite direction. Furthermore, misalignment can be achieved by bolts screwed into the two arm pieces of the arm portion. In this way, just by preparing multiple adjustment jigs for re-installation and misalignment, it is easy,
Moreover, since it can be performed efficiently, it can be expected to shorten the construction period in the process of constructing the steel frame columns.

Since a wedge is not inserted between the pillar to be constructed and the pillar already constructed to rebuild, the pillar to be constructed from now on is constructed by the crane after it is built into the constructed pillar. Even if the suspension is released, the pillar to be constructed can be held stably. Thereby, the operating time of the crane can be increased.

[0009]

EXAMPLE As shown in FIGS. 1 to 3, an adjusting jig 20 is a jig for adjusting a portion where a steel frame column 22 that has already been constructed and a steel frame column 28 to be constructed are joined. is there. The constructed pillar 22 has a pillar surface 24 at an upper end 23 thereof.
The column 28 to be constructed from the first erection piece 25 fixed to the second column is fixed to the column surface 30 of the lower end 29 corresponding to the column surface 24 of the column 22 already constructed. The erection piece 31 of FIG. The column 22 that has already been constructed and the column 28 that is to be constructed from these have a hollow cross-sectional shape that is a quadrangle, and for example, the column that is to be constructed from the insertion portion 26 protruding from the column 22 that has already been constructed. Loosely plug into 28 to hold the post 28 to be constructed.

In the embodiment shown in FIG. 1, two jigs 20 are provided.
Although two jigs 34 are provided, the jig 34 has the same structure except that the jig 34 is formed plane-symmetrically with respect to the jig 20. Therefore, the following description will be given for the jig 20, and for the jig 34, parts having the same structure will be denoted by the same reference numerals, and description thereof will be omitted.

The jig 20 includes a jig body 36 and a bolt 38.
And screw means 40.

The jig body 36 includes a base portion 42 and an arm portion 44.
And the arm portion 44 has two arm pieces 45 and 46. In the illustrated embodiment, the base 42 is formed to have a U-shaped horizontal cross section, and is releasably attachable to the first erection piece 25. The base 42 is
As shown in FIGS. 2 and 3, when the base portion 42 is attached to the first erection piece 25, the base portion 42 has a portion that extends upward beyond the upper end surface of the constructed column 22.

Two arm pieces 45, 46 of the arm portion 44
Are orthogonal to each other, and in the illustrated embodiment, base 42
The arm piece 46 is welded to the portion extending upward of the
One arm piece 45, 46 extends horizontally from said part. As a result, the two arm pieces 45, 46 are
As shown in FIG. 5, the pillar surfaces 30 and 32 of the lower end portion 29 of the pillar 28 to be constructed face each other. The arm piece 4 of the two arm pieces 45 and 46 of the arm portion 44
Since the bending force from the arm piece 45 is applied to 6 in addition to the compression force, it is formed to have a larger cross section than the arm piece 45.

The bolt 38 is the arm portion 4 of the jig body 36.
4 of each of the two arm pieces 45, 46 of FIG.
It is pressed against 2, 30. At least one bolt 38 is provided for each arm piece.

The screw means 40 has two screws 52 and 53 which are respectively screwed into the jig body 36 and the second erection piece 31. These screws 52, 53 are
It is a so-called turnbuckle in which the direction of the screw is reversed. A plate 56 with a screw hole is welded to the upper end of the base portion 42 of the jig body 36 to screw in the screw 52, while the second
58 having screw holes in the erection piece 31 of
And screw in the screw 53. The screw means 40 is 2
It has integrally a flat width portion 54 provided at the connecting portion of the two screws 52, 53.

In the embodiment shown in FIG. 1, the erection piece 25, which is a plate fixed to the already constructed pillar, has two erection pieces on each of two pillar surfaces of the four pillar surfaces located in parallel with each other. Since the arrangement is such that 25 are attached, two symmetrical jigs 2
0 and 34 are used. The above-mentioned arrangement of the erection piece 25 is for the convenience of installing a welder (not shown) so as to face the column surface without the erection piece 25 when welding the already constructed column and the column to be constructed.

Before the pillar 28 to be constructed is installed at a predetermined position by the crane, the erection piece 25 of the constructed pillar 22 is fitted into the base portion 42 of the jig body 36, and the erection piece 25 and the base portion 4 are inserted.
In the illustrated embodiment, a pin 60 is inserted into a lower one of a plurality of through holes provided in each of the two, which are aligned with each other in FIG. 36 is inclined and the upper side is opened. After that, the pillar 28 to be constructed from now on is erected, the jig body 36 is made vertical, the pin 60 is inserted into the remaining through hole, and the screw 53 of the screw means 40 is screwed into the yoke 5.
8 by the pin 62 the erection piece 31 of the pillar 28
And the assembling of the jigs 20 and 34 is completed. Instead of the above, the jig 28, 34 may be assembled after the pillar 28 to be constructed is built into the constructed pillar 22.

First, a ruler or the like is applied to the column surface of the joint between the column 22 having already been constructed and the column 28 to be constructed, and the amount of misalignment is measured, and which one of the four jigs 20 and 34 is selected. Determine whether to use. Then, the bolt 38 is screwed in and pressed against the pillar surface of the pillar 28 to be constructed from now on.
Pry 8 and make misalignments.

After the misalignment is completed, the inclination of the column 28 to be constructed is measured by using a measuring device such as a transit, and when there is inclination, a tool is fitted into the width across flat portion 54 of the screw means 40, The screw means 40 is turned to rebuild the building. In this case, for example, in FIG. 2, if the pillar 28 to be constructed is tilted to the left, the screw means 40 of the left jig 34 is extended and the screw means 40 of the right jig 20 is contracted. To adjust. In FIG. 2, when the pillar 28 is tilted to the left and further to the front, the jigs 20 and 34 located in the diagonal direction of FIG. 1 are used.

After the adjustment of misalignment and re-installation is completed, the pillar 22 that has already been constructed and the pillar 2 that will be constructed from now on
8 and are welded, and the jigs 20 and 34 are removed. Jig 20,
34 is reused.

When the base of the jig main body has a U-shaped cross section as in the above embodiment, it is possible to fix the base of the jig main body simply by inserting the pins into the plurality of through holes. Therefore, the workability is good, and since the base portion is fitted with the first erection piece, the first erection piece can be provided with a reaction force due to the screwing of the bolt applied to the base portion even if it is fixed with the pin. .

[Brief description of drawings]

FIG. 1 is a cross-sectional plan view of a jig for adjusting a joint portion of a steel frame column and a column according to the present invention, showing a state of being cut along a line 1-1 in FIG.

FIG. 2 is a side view seen from two directions in FIG.

FIG. 3 is a side view seen from three directions in FIG.

FIG. 4 is a side view showing a conventional adjustment of a joint portion of a column.

FIG. 5 is a side view seen from the other side, showing the adjustment of the joint portion of the conventional column.

[Explanation of symbols]

 20, 34 Jig 22 Prefabricated pillar 24, 30, 32 Pillar surface 25 First erection piece 31 Second erection piece 36 Jig body 38 Bolt 40 Screw means 42 Base 44 Arm portion 45, 46 Arm piece 52, 53 screws

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuhiro Naito 2-1-1 Honohara, Toyokawa City, Aichi Prefecture Kumagaya Gumi Toyokawa Factory

Claims (1)

[Claims] 1. A prefabricated steel column having a first erection piece fixed to a column surface of an upper end, and a column surface of a lower end corresponding to the column surface of the constructed column. A jig for adjusting a portion for joining a column of a steel frame to be constructed, which has a second erection piece fixed to a base, which has a base and two arm pieces, and is fixed to the base. A jig main body including an arm portion, wherein the base portion is releasably attachable to the first erection piece, and when the base portion is attached to the first erection piece, the constructed pillar Has a portion that extends upward beyond the upper end surface of the column, the two pieces of the arm portion extending horizontally from the upwardly extending portion of the base, and the lower end of the post to be constructed. Of the pillar and the pillar And a jig main body formed so as to oppose to another column surface orthogonal to each other, and a column to be constructed to be screwed into each of the two arm pieces of the arm portion of the jig main body. At least one bolt that is pressed against the pillar surface, and two screws that are respectively screwed into the jig body and the second erection piece, and screw means in which the directions of these screws are reversed. , A jig for adjusting the joints of steel columns.