JP2001182734A - Chuck for bolt in connection between beam and square steel pipe column - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chuck capable of surely grasping a bolt and to readily attach it in connection between beam and square steel pipe column with bolt. SOLUTION: This chuck has a holding portion (1) to screw bolt by threading with a thread (41) of the bolt (4) and wire type guide portion (2), which is connected to edge of holding portion (1) and is longer than width of square steel pipe column. It is preferable that the holding portion (1) be wound as a thread or molded in cylinder with an inner thread, so that a piano wire material or hard synthetic resin which has abrasion resistance and elasticity be used. It is better that the whole length of guide portion (2) have a slight curvature.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beam joint bolt chuck for a rectangular steel tube column in which a beam joint bolt is arranged to guide a long rectangular steel tube column from the outside to an inner wall thereof.

[0002]

2. Description of the Related Art Conventionally, a square tubular column having a closed cross section and an H
For joining with beams such as shaped steel, there has been no bolt construction method of directly attaching beam joining bolts to an arbitrary position of a rectangular steel tubular column and to the inner wall thereof. For this reason, the present inventor has filed Japanese Patent Application No. 11-3538.
No. 59 has just proposed a method of mounting beam connecting bolts in a square steel tubular column.

The present invention has been proposed for use in Japanese Patent Application No. 11-353859, entitled "Method of Mounting Beam Joint Bolts on Rectangular Steel Tube Columns". An object of the present invention is to provide a chuck for a beam connection bolt in a square steel pipe column that can be attached.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention has been made. That is, a supporting portion to be screwed with a thread portion of a beam connecting bolt is connected to the supporting portion, and a rectangular shape is formed. And a wire-like introduction part at least longer than the width of the steel pipe column. Further, the support portion may be formed in a spiral shape or in a cylindrical shape with a thread cut therein, and a hard synthetic resin or a piano wire having wear resistance and elasticity may be used. Further, it is more preferable that the entire introduction portion is formed so as to be slightly warped. In the present invention, “to be screwed with the screw portion” includes a screw thread that is engaged with the screw thread.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram showing an embodiment of the present invention, and the description will be made based on this. (1) is a support part (1) screwed with the thread part (41) of the beam connecting bolt (4), and the support part (1) is formed by spirally winding a piano wire. At this time, it is preferable that the spiral is wound with the outer shape closely contacted. (2) is an introduction portion which is continuous with an end portion of the piano wire spirally wound, and its length is approximately two to three times as large as the width of the rectangular steel pipe column (5).
A length of 60 cm to 60 cm is preferred. In addition, the material of the support part (1) and the introduction part (2) is not limited to a piano wire. (3) is an elongated rectangular steel pipe column in which a mounting hole (31) for a beam connecting bolt (4) is formed at an arbitrary position and an insertion hole (32) is formed. (4) is a beam connecting bolt, which uses a hexagonal bolt or a torcia-type high-strength bolt.
(5) is a hole (51) for mounting the beam connecting bolt (4)
(6) is a metal joint such as a split T-type steel, (7) is a washer, and (8)
Is a nut screwed into the beam connecting bolt (4).

FIG. 2 is a view showing another embodiment of the present invention. Compared with the above embodiment, the support portion (1) and the introduction portion (2) are formed of a wire having a triangular cross section. I have. As the material, a metal or a hard synthetic resin having abrasion resistance and elasticity is used, and it is preferable to integrally mold it. Further, it is preferable that the whole of the introduction part (2) is slightly warped and molded.

FIG. 3 is a view showing another embodiment of the present invention, which is different from the above-mentioned embodiment in that the support portion (1)
Is formed in a cylindrical shape and the inner wall has a thread (11)
Is engraved. The cylindrical outer diameter is made slightly smaller than the mounting hole (31) of the square steel pipe column (3). Further, it is preferable that the support part (1) and the introduction part (2) are integrally formed of a hard synthetic resin or a metal having at least abrasion resistance, and that the whole of the introduction part (2) is slightly warped.

Next, how to use the present invention will be described. First, the distal end of the thread portion (41) of the beam connecting bolt (4) is screwed and supported while being inserted into the support portion (1) of the present invention (see FIGS. 4 and 5). At this time, when the support part (1) formed in a spiral shape is used, the support part (1) is used.
After the screw (41) is pushed into the inside of the support and the inner diameter of the support (1) is expanded and inserted, simply by moving it to the left and right, the wire is tightly fitted between the threads and locked and screwed. Therefore, it can be easily supported. Next, with the beam connecting bolt (4) screwed, the introduction part (2) is inserted into the insertion hole (32) of the square steel tubular column (3). Then, the leading end of the introduction portion (2) is inserted toward the predetermined mounting hole (31). At this time, if the entire introduction part (2) is warped, it is easy to guide the introduction part (2) to the target mounting hole (31). Thereafter, when the introduction portion (2) protruding to the outside is pulled by hand, the beam connecting bolt (4) is inserted through the insertion hole (32) from the left side into the inside of the rectangular steel pipe column (3) as shown in FIG. enter. Further, the tip of the thread portion (41) of the beam connecting bolt (4) is inserted into the mounting hole (31) and protrudes rightward. At this time, the beam connecting bolt (4) is inserted from the insertion hole (32), and the beam connecting bolt (4) can be easily arranged in the mounting hole (31) provided on the facing surface or the lateral surface. Next, when the screw portion (41) protrudes, the tip of the introduction portion (2) is inserted into the hole (51) and the hole (61) at a stretch, and is taken out of the reinforcing steel plate (5) and the metal joint (6), and the beam joint bolt is formed. (4)
Of the screw (41) from them, the washer (7) and the nut (8) are attached, and the mounting hole (31)
Insert a beam connecting bolt (4) or a jig rod (not shown) so that the steel plate does not deviate from the hole (51) and the hole (61), and the reinforcing steel plate (5) and the metal fitting (6) are inserted into the square steel pipe column (3). Is temporarily stopped. Then, the screw part (41) of the beam joining bolt (4) may be removed from the screw thread (11) or the spiral support part (1).

In the same manner as described above, the beam connecting bolt (4) to be mounted has the tip of the screw portion (41) supported by the support portion (1), and the beam connecting bolt (4) is inserted through the insertion hole (32). At the same time, the tip of the screw portion (41) passes through the mounting hole (31), the hole (51), and the hole (61) and protrudes from the surface of the joint hardware (6), into which a washer (7) is inserted and a nut is inserted. (8) may be screwed together. In this way, the beam connecting bolt (4) is sequentially passed through the mounting hole (31), the hole (51), and the hole (61) to protrude from the metal joint (6), and the washer (7) is inserted into the nut (8). Screw. Finally, pull out the beam connecting bolt (4) or the jig rod that was inserted so that the hole would not shift.
The beam connecting bolt (4) may be arranged on the inner wall of the square steel tubular column (3) as described above (see FIG. 5). The procedure for arranging the beam connecting bolts (4) on the inner wall of the square steel tubular column (3) is in another order, for example, after arranging the beam connecting bolts (4) on the inner wall of the square steel tubular column (3), and then reinforcing. The steel plate (5) and the joint hardware (6) may be temporarily fixed, and the details have been described in Japanese Patent Application No. 11-353859, "Method of Mounting Beam Joint Bolts on Rectangular Steel Tube Column". The above description is omitted.

[0010]

The present invention having the above-described structure has the following effects.

A support part (1) screwed to a thread part (41) of a beam connecting bolt (4) as in claim 1, and the support part (1)
And a wire-like introduction part (2) at least longer than the width of the rectangular steel pipe column (3), the beam joint bolt (4) can be easily supported. When beam joining is performed using the beam joining bolt chuck of the present invention, the beam joining bolt (4) is inserted into the insertion hole (32), and the tip of the screw portion (41) is inserted from an arbitrary mounting hole (31). Since it can be easily pulled out and protruded and directly attached to the inner wall of the rectangular steel pipe column (3), even if the mounting hole (31) of the rectangular steel pipe column (3) having a closed cross section is located at any position. The beam joint bolt (4) can be mounted by projecting from the inner wall thereof to the outside, and the reinforcing steel plate (5) or the joint hardware (6) can be attached to the square steel tube column (3) by the beam joint bolt (4) and the nut (4). 8) It can be easily attached and fixed. Therefore, the number of assembling steps is reduced as compared with the conventional work attachment method for beam joining, and the effects of shortening the construction period and reducing costs are enhanced. In addition, even when the plate thickness of the long rectangular steel tube column (3) varies, the beam connecting bolt (4) is attached to the inner wall of the long rectangular steel tube column (3) easily and without any trouble. And workability is good without hole displacement. Furthermore, if the torsion-type high-strength bolts are used as the beam connecting bolts (4), the fastening work can be performed with the specified tightening torque secured, so that the nut (8) does not need to be checked for looseness and the square steel pipe can be used. The quality of the joining strength between the column (3) and the beam is stabilized, and it is possible to contribute to the cost reduction of the joining work.

According to the second aspect of the present invention, the support portion (1) is formed in a spiral shape and its end is formed continuously with the introduction portion (2), so that the screw portion (41) of the beam connecting bolt (4) is formed. )
The support of the tip can be easily performed, and the guide from the insertion hole (32) of the rectangular steel pipe column (3) to the mounting hole (31) can be easily and reliably performed. In addition, it can be easily manufactured and can be marketed at low cost.

According to a third aspect of the present invention, by forming the support portion (1) in a spiral shape with a wire having a triangular cross section, the contact area of the beam connection bolt (4) with the screw portion (41) is reduced. Since it is larger than the round shape, the support can be performed more reliably. Further, since the outer diameter of the support portion (1) when supporting the beam joining bolt (4) can be reduced, the beam joining bolt (4) can be more easily guided.

According to a fourth aspect of the present invention, the support portion (1) is formed in a cylindrical shape having a thread (11) formed therein and has an outer diameter slightly smaller than that of the mounting hole (51). The support of the joining bolt (4) becomes stable.

By forming the support portion (1) with a hard synthetic resin having abrasion resistance and elasticity as described in claim 5, mass production can be achieved, so that it can be marketed at low cost.

By forming the support portion (1) and the introduction portion (2) with a piano wire as in claim 6, it is easy to manufacture and even if the introduction portion (2) is deformed during use. It can be corrected to.

According to a seventh aspect of the present invention, by slightly warping the entire introduction portion (2), the beam connection bolt (32) is inserted from the insertion hole (32) of the square steel tubular column (3) to the target mounting hole (31). 4) is relatively easily induced.

[Brief description of the drawings]

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

FIG. 2 is a perspective view showing another embodiment of the present invention.

FIG. 3 is a perspective view showing another embodiment of the present invention.

FIG. 4 is an explanatory view showing an example of a state in which a beam joining bolt is supported.

FIG. 5 is an explanatory diagram showing a use state of the present invention.

FIG. 6 is an explanatory view showing a state in which a reinforcing steel plate and a joint hardware are attached to a square steel tubular column using the product of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support part 11 Thread 2 Introductory part 3 Square steel pipe column 31 Mounting hole 4 Beam connection bolt 41 Screw part

Claims (7)

[Claims] 1. A support part (1) screwed with a screw part (41) of a beam connecting bolt (4), and connected to the support part (1) and at least longer than the width of the rectangular steel column (3). A chuck for a beam joining bolt in a square steel tubular column, comprising a wire-like introduction part (2). 2. The beam connecting bolt according to claim 1, wherein the support portion (1) is formed in a spiral shape and an end thereof is formed continuously with the introduction portion (2). Chuck. 3. The chuck according to claim 1, wherein the supporting portion is formed of a wire having a triangular cross section in a spiral shape. 4. The support part (1) is cylindrical, the outer diameter of which is slightly smaller than the mounting hole (31) of the square steel tubular column (3), and a thread (11) formed on the inner wall thereof. Claim 1
A chuck for a beam connection bolt in the square steel pipe column described in the above. 5. The support portion (1) is formed of a hard synthetic resin having wear resistance and elasticity.
A chuck for a beam connection bolt in the square steel pipe column described in the above. 6. A chuck for beam joint bolts in a square steel tubular column according to claim 1, wherein said support part (1) and said introduction part (2) are piano wires. 7. The beam joint bolt chuck according to claim 1, wherein the entire introduction portion (2) is slightly warped.