JPH042355B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a positioning tool for a backing metal that is attached to a cut end of a column base or joint material used as a column of a steel frame structure.

As shown in Figure 1, the columns of a steel frame structure are constructed by sequentially welding column bases 1 with a length corresponding to the ceiling height of each floor and joint blocks 2 for attaching beams to the columns. Ru. Recently, column steel (square steel), which has excellent earthquake resistance, has been widely used as column material for steel structures. However, in order for column steel to exhibit the specified strength, it is necessary to apply standard processing techniques to the welded parts of each member, and to put it simply, it is inferior to conventional H-beam steel. This will expose his weak side. Therefore, the cut ends of column bases and joint members are beveled in advance, and then
Furthermore, a backing metal is attached, and then welding is performed.

Here, before explaining the present invention, an outline of the procedure for forming pillars will be explained based on FIG. 2. First, a piece of column steel is cut to a predetermined length to form the column base 1, and after the cut end is beveled, the backing metal 3 is attached to it (see FIG. 2C). Aside from this,
Column steel is cut to a predetermined size to make the joining member 4, and the cut end is beveled in the same manner as above, and the backing metal 3 is attached to this, and the diaphragm 5 is further welded to both ends (see Fig. 4). ). Subsequently, the mounting member 6 is welded to this to form a joint block 2, and the column base 1 is then joined to this joint block 2.

Since the backing metal 3 is used to complete the connection between the column base 1 or the joining member 4 and the diaphragm 5 and to exhibit sufficient welding strength, it is made to protrude from the cut end of the column base 1 etc. by a predetermined amount. Of course, the true length l of the column base 1, etc. is the length that includes the back cover 3 attached to it, and the back cover 3 is the true joint end to the diaphragm 5. Therefore, even if there is a dimensional error or distortion of the cut end surface of the column base 1, etc., it is important that the backing metal 3 absorbs it.

The present invention has been made in view of the above-mentioned points, and it is possible to arbitrarily adjust the amount of protrusion of the backing metal 3 with respect to the cut end of the column base 1, etc.
It is arranged to be orthogonal to the panel surface 8 of . That is, the present invention provides a bonding edge 7 of the backing metal 3.
is spaced from the cut end of the column base 1 by a distance d and coincides with a surface s perpendicular to the panel surface 8.

Hereinafter, the present invention will be specifically explained based on illustrated embodiments.

In the figure, reference numeral 10 is a mounting portion, and 11 is a locking portion.
The attachment part 10 is for attaching the present positioning tool to the column base 1 and the joining member 4. There are no particular limitations on the attachment mechanism. In short, use this positioning tool as the column base 1
It is sufficient if it can be fixed to the cut end in parallel with the cut end. The figure is an example, in which the main body part is a frame 12 having a cross-sectional shape slightly larger than the cross-sectional shape of the column base 1, etc., and the upper surface 12a and one side 12b are the upper surface 1a of the column base 1 etc.
and one side surface 1b as a guide surface for controlling its posture, and the guide surfaces 12a and 10b are closely fixed to the upper surface 1a and one side surface 1b of the column base 1, etc., respectively, on the lower surface and the other side surface. Install the chatking for. In the figure, bolts 13a and 13b are shown as an example of chucking. Reference numeral 14 is a stopper. This device determines the mounting position of the mounting member 10 on the column base 1, etc., and is rotatably fitted to a pin 15 attached near the upper edge of the frame 12, and is used to position the mounting member 10. When doing so, it protrudes inside the frame 12 and engages with the cut end of the column base 1 or the like. Although the figure shows an example in which a butterfly bolt is used as the pin 15, the pin 15 is not limited to this. In short, when positioning the frame 12, the stopper 14 engages with the cut end of the column base 1, etc., and when positioning the backing plate 3, it can be made so that it does not engage with it. That is enough.

The locking part 11 is for positioning the back cover 3 with respect to the column base 1 etc., and is used to secure the joint edge 7 of the back cover 3.
The engaging piece 16 that engages with the column base 1
It is designed to be fixed on a plane s keeping an appropriate distance d from the cut end of the cut end. The figure shows an example of this, and the positioning frame 17 is formed to have a slightly larger cross-sectional shape than the cross-sectional shape of the frame body 12 of the mounting frame 10, and an engagement piece 16 is attached to the front edge of the positioning frame 17, and the positioning frame 17 can be slid. It is attached to the frame 12 via a pin 18 so that it can move forward and backward. An adjustment screw 19 is attached to the positioning frame 17, and a female screw 20 is attached to the frame body 12, and by turning the adjustment screw 19 left and right, the positioning frame 17 slides back and forth, thereby adjusting the distance between the engaging piece 16 and the cut end of the column base 1, etc.

Next, a procedure for attaching the backing metal 3 to the column base 1 or the joint portion 4 will be explained.

First, the stopper 14 is made to protrude toward the inside of the frame 12, and this is fitted onto the column base 1, etc., and pushed in until the stopper 14 comes into contact with the cut end and stops.Furthermore, the bolt 13 is tightened to close the frame. The body 12 is fixed (see FIGS. 6 and 7). Next, adjust screw 19
, move the positioning frame 17 forward and backward, and engage the engagement piece 1.
6. Perform positioning. In this case, if the column base 1 etc. have been cut to exact dimensions in advance, it is sufficient to fix the positioning frame 17 at a predetermined position on the frame body 12.

Next, pull out the backing metal 3 and attach the joint end 7.
is applied to the engagement piece 16. Then, the backing metal 3 will protrude by a predetermined amount from the cut end of the column base 1, etc., so it is fixed in that position, temporary welding is applied to the cut end, and this is attached to the product column base or the joining material. That is to say.

Incidentally, in the above description, the position of the engaging piece 16 corresponds to the position of the joint end 7 of the backing plate 3, so when positioning this, it is necessary to mark the scale in advance at the appropriate place on the engaging piece 16 itself or the positioning frame 17. It is desirable to confirm the amount of adjustment of the engagement piece 16 by measuring the distance between the reference point of the column base 1 and the scale when the frame 12 is fixed to the column base 1, etc. Since the distance between the engaging piece 16 and the stopper 14 corresponds to the amount of protrusion of the backing plate 3 from the cut end of the column base 1, etc., although not shown, a scale indicating the distance between the two is set between the positioning frame 17 and the frame body 12. It is desirable to provide it between the two.

As detailed above, the present invention is for positioning a backing plate attached to a column base or a joint material made of column steel, and is extremely easy to operate and allows for accurate positioning. There are advantages that can be achieved.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing a column of a steel structure, Fig. 2 is an explanatory drawing showing the assembled state of the same, Fig. 3 is an explanatory drawing showing a state in which the backing metal is attached, and Fig. 4 is an explanatory drawing showing the product column base. FIG. 5 is a partially cutaway perspective view showing one embodiment of the present invention, and FIG. 6 is a longitudinal sectional view showing the same working state. 10; Attachment part, 11; Locking part, 12; Frame body, 1
3; bolt, 14; stopper, 15; pin, 1
6; engaging piece; 17; positioning frame; 18; slide pin; 19; adjustment screw; 20; female screw.

Claims (1)

[Claims] 1. A positioning tool for a backing metal that is attached to the cut end of a column base or joint material formed using column steel, in which a stopper that engages with the cut end of the column base or joint material is attached to the front end of the frame, and A chuck is attached to fix the frame to a column base, etc.
Furthermore, the positioning tool is characterized in that a positioning frame is attached to the frame body so as to be movable forward and backward, and an engagement piece that engages with the joint surface of the backing metal is attached to the front end of the positioning frame.