JP2007210076A - Assembling jig for lower flange connecting splice plates of h-section steel frame, and method of assembling splice plates using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an assembly tool which is small in size, light in weight, easy to handle, and drastically improves efficiency of assembly work of splice plates, and also to provide a method of assembling the splice plates using the assembly tool. <P>SOLUTION: The assembling tool or a jig 1 is formed of a pair of engaging members 2, a pair of suspending members 3, a support member 4, and a roller member 5. The engaging members 2 engage with areas near both side edges of inner splice plates 25 on a lower flange 23. The suspending members 3 each have an upper portion jointed to the engaging member 2 so as to adjust relative vertical locations, and suspend both outsides of lateral edges of the flange 23. The support member 4 crosses under the flange 23 while keeping a predetermined parallel interval away from the same, and jointed to the suspending members 3 at both edges. The roller member 5 on the support member 4 has an outer splice plate 26 mounted thereon at a location that does not interfere with bolt holes and carries the outer splice plate 26 in a longitudinal direction of the H-section steel frame 21. The roller member 5 forms a rocking fulcrum in a major axis direction of the outer splice plate 26, and functions to rock the outer splice plate 26, to thereby carry out parallel adjustment with respect to the flange 23. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  In the present invention, in the operation of assembling the outer splice plate on the lower surface of the lower flange after placing the inner splice plate at a predetermined position on the lower flange of the H-shaped steel frame in which the flange is horizontally disposed, The present invention relates to a jig for assembling a splice plate used by being attached to a lower flange of a mold steel frame, and a method for assembling a splice plate using the jig.

When bolting the ends of the H-shaped steel frames, an inner splice plate is attached to the upper surface of the lower flange and an outer splice plate is attached to the lower surface of the lower flange in order to connect the lower flanges of both steel frames. The bolting operation of the lower flange connecting splice plate and the lower flange is performed at the construction site, but the steel frame is carried into the construction site in a state where the splice plate is temporarily assembled at the processing site.
The temporary assembly operation of the splice plate for connecting the lower flange to the H-shaped steel frame at the processing site is performed as follows. First, a pair of inner splice plates are placed on a predetermined position on the lower flange of an H-shaped steel frame placed with the flange disposed horizontally. Next, an outer splice plate (for example, 27 kg in weight) is disposed on the lower surface of the lower flange, and the bolt holes are brought into contact with each other and tightened with temporary fixing bolts and nuts.
Patent Document 1 describes a temporary assembly of an outer splice plate that enables this work to be easily performed by one person. This steel splice plate assembly is a member that is suspended from the lower flange of an H-shaped steel frame, and includes a splice support having a substantially constant plane-supporting surface, and an H-shaped steel frame. A hanger member to be hung on the lower flange. Furthermore, a moving roller for sending the splice plate, a guide roller, a lifting mechanism for bringing the splice plate closer to the lower flange, and a wedge for preventing the tilt of the assembly tool by installing the splice plate are driven into the splice support. It has a wedge receiver.
Japanese Patent Application Laid-Open No. 6-304876

The above-mentioned conventional splice plate assembly includes a splice support having a certain flat support action surface. Since such a support working surface is for stably supporting the splice plate horizontally, it must have a certain horizontal extent corresponding to the area of the splice plate. The placement of the splice plate will depend on a completely planar support working surface, but if the support working surface is not placed exactly parallel to the flange, the flange bolt holes and the splice plate bolt holes will Since the axes do not match and it is difficult to insert the bolts, the structure of the device must be complicated and more precise in order to accurately determine the arrangement of the support working surface. For this reason, since the apparatus becomes large and heavy, it is unsuitable for the work of attaching and moving splice plates one after another to a large number of stacked steel frames in a steel processing factory, and is not practical. The specific embodiment shown in Patent Document 1 is particularly large, heavy, and has a complicated structure.
Therefore, the invention according to this application is an assembly of a splice plate that is small and light enough to be moved by an operator with one hand, is easy to handle, and can greatly improve the efficiency of assembling the splice plate. An object is to provide an attachment tool and a method of assembling a splice plate using the attachment tool.

In the invention according to this application, in order to solve the above problem, the outer splice plate for the lower flange is provided with a pair of locking members 2, a pair of suspension members 3, a support member 4, and a roller member 5. The assembly tool 1 is configured. The pair of locking members 2 are configured to be locked in the vicinity of both edge portions of the inner splice plate 25 on the lower flange 23. The pair of suspension members 3 are coupled to the locking member 2 at the upper part so that the relative vertical position can be adjusted, and are configured to hang outside the both ends in the width direction of the lower flange 23. The support member 4 is configured to traverse below the lower flange 23 with a predetermined parallel interval and to be coupled to the suspension member 3 at both ends. The roller member 5 is mounted on the support member 4 and configured so that the outer splice plate 26 can be placed and fed in the longitudinal direction of the H-shaped steel frame 21. The roller member 5 is in contact with the lower surface of the outer splice plate 26 at a position where it does not interfere with the bolt hole of the outer splice plate 26 and forms a swing fulcrum in the major axis direction of the outer splice plate 26.
Further, in the invention according to this application, a method for assembling the outer splice plate 26 to the lower flange 23 by using the splice plate assembly tool 1 according to the following steps is provided. This method includes (1) a step of placing an inner splice plate 25 at a predetermined position on the lower flange 23 of the H-shaped steel frame 21 placed with the flange 23 placed horizontally, and (2) an inner splice on the lower flange 23. A step of attaching the assembly jig 1 to the lower flange 23 by engaging the pair of engaging members 2 in the vicinity of both edges in the width direction of the lower flange 23 of the plate 25; (3) the lower flange 23 and the roller (4) a step of inserting the outer splice plate 26 in the longitudinal direction from the front end side of the H-shaped steel frame 21 between the members 5 and moving the outer splice plate 26 on the roller member 5 to a predetermined position; In this position, while positioning the outer splice plate 26 on the roller member 5, a positioning rod 27 is inserted so as to pass through the bolt holes of the inner splice 25 plate and the lower flange 23. Stopping the outer splice plate 26 at a position parallel to the lower flange 23 by passing the end through the corresponding bolt hole of the outer splice plate 26; (5) the outer splice plate 26, the lower flange 23 and the inner splice plate 25; And (6) a step of pulling out the assembly jig 1 from the end portion of the H-shaped steel frame 21 in the longitudinal direction.

When the outer splice plate 26 for connection is temporarily assembled to the steel frame 21, a series of operations can be easily and safely performed by one person using the jig 1 according to the invention of this application. In the assembling jig 1 according to the present invention, the outer splice plate 26 is supported by the above-mentioned means so as to be able to swing on the roller member 5, whereby the parallel adjustment of the outer splice plate 26 with respect to the flange 23 is performed. It becomes easy. As a result, the apparatus can be reduced in size, weight and structure to such an extent that the operator can move it with one hand, and the handling becomes extremely easy. Even if the inner splice plate 25 previously placed at a predetermined position on the lower flange 23 is in an unstable arrangement, it can be stabilized by mounting a jig, and the operation can proceed safely. Furthermore, as a whole, the work of assembling the splice plates 25 and 26 can be made much more efficient.
In addition, an efficient method of assembling the splice plates 25 and 26 can be provided using the assembly tool 1.

  Embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view of a splice plate assembly according to the present invention in use, FIG. 2 is a front view of the splice plate assembly according to the present invention, and FIG. 3 is a view of the splice plate according to the present invention. FIG. 4 is a side view of an assembly tool for a splice plate according to the present invention, FIG. 5 is a plan view of the assembly tool for a splice plate according to the present invention, and FIG. 6 is a splice plate according to the present invention. It is explanatory drawing which shows this assembly | attachment process.

  1 and 2, reference numeral 21 denotes an H-shaped steel frame, which is placed in a storage place with flanges 22 and 23 arranged horizontally. On the lower flange 23, a pair of inner splice plates 25 are placed at predetermined positions with the bolt holes aligned on both sides of the web 24. The jig 1 is mounted on the inner splice plate 25 placed on the lower flange 23. Since the center of gravity of the inner splice plate 25 placed on the lower flange 23 with the bolt holes aligned is slightly outside the lower flange, it will fall down as it is, but the inner splice plate will fall due to its own weight. 25 stabilizes on the flange 23. For this reason, the mounting operation of the jig 1 needs to be performed in good timing with the arrangement of the inner splice plate 25. In this work, it is a great advantage that the jig 1 is small and light and can be operated with one hand.

  1 to 5, the jig 1 includes a pair of locking members 2, a pair of suspension members 3, a support member 4, and a roller member 5.

  The locking member 2 is locked in the vicinity of both edges in the width direction of the lower flange in the inner splice plate 25 placed on the lower flange 23 in the mounted state on the H-shaped steel frame 21. At this locking position, the lower end of the locking member 2 is outside the bolt hole row of the inner splice plate 25 and does not interfere with the bolt holes. In the illustrated embodiment, the locking member 2 comprises a screw rod 6. The screw rod 6 extends perpendicularly to the lower flange 23 and contacts the upper surface of the inner splice plate 25 at the lower end.

  The pair of suspension members 3 is coupled to the locking member 2 at the upper portion so that the relative vertical position can be adjusted, and suspends outside the both ends in the width direction of the lower flange 23 when mounted on the H-shaped steel frame 21. A nut member 7 to which a screw rod 6 as a locking member is screwed is fixed to the opposite side surfaces of the upper portions of the pair of suspension members.

  The support member 4 is coupled at right angles to the lower end of the suspension member 3 at both ends, and constitutes a U-shaped frame opened upward. In a state where the support member 4 is attached to the H-shaped steel frame 21, the support member 4 crosses the lower portion of the lower flange 23 with a predetermined parallel interval.

  The roller member 5 is fixed to the upper surface near the intermediate portion of the support member 4. In the mounted state on the H-shaped steel frame 21, a gap G1 sufficient to insert the outer splice plate 26 is placed between the roller member 5 and the lower flange 23, and the inserted outer splice plate 26 is placed. This can be sent in the longitudinal direction of the H-shaped steel frame. The gap G1 is screwed together so that a gap G2 is formed between the outer splice plate 26 and the lower flange 23 in a state where the outer splice plate 26 to be inserted is placed on the roller member 5. It is set by adjusting the height. The thickness of the flange 23 and splice plates 25 and 26 differs depending on the size of the H-shaped steel frame 21 to be applied. However, when the screwing height of the screw rod 6 is adjusted so that the gap G2 is about 5 mm, the working efficiency is good. It is.

  The roller member 5 is in contact with the lower surface of the outer splice plate 26 at a position where it does not interfere with the bolt hole row of the outer splice plate 26, and forms a swing fulcrum in the major axis direction of the outer splice plate 26. In the illustrated embodiment, the roller member 5 is composed of a pair of door pulleys 8 that are fixed to each other at a distance in the width direction across the center of the lower flange 23 in the width direction.

  With reference to FIG. 6, the assembling work of the splice plate using the jig 1 is performed as follows. First, the two inner splice plates 25 are placed on the lower flange 23 of the H-shaped steel frame 21 in which the flanges 22 and 23 are placed horizontally (FIG. 6A). In this arrangement, the center of gravity of the inner splice plate 25 is slightly outside the lower flange, and as such, there is a risk of falling, and the work cannot proceed safely. Therefore, simultaneously with the arrangement of the inner splice plate 25, the lower ends of the pair of locking members 2 are hung near both edges of the inner splice plate 25, and the jig 1 is 100 mm from the longitudinal end of the H-shaped steel frame 21. It is mounted at a certain position (FIG. 6B). Since the inner splice plate 25 in an unstable arrangement is pressed onto the flange 23 by the dead weight of the jig 1, there is no possibility of dropping even if it is not supported by hand. For this reason, the next work can be performed freely and safely using both hands. Next, an outer splice plate 26 is inserted in the longitudinal direction from the front end side of the H-shaped steel frame at a gap G1 between the lower flange 23 and the roller member 5, and the outer splice plate 26 is moved on the roller member 5 to a predetermined position. . At a predetermined position, while positioning the outer splice plate 26 slightly on the roller member 5, a positioning rod 27 such as a wrench handle is inserted so as to penetrate the bolt holes of the inner splice plate 25 and the lower flange 26 ( 6B), the positioning rod 27 is positioned by penetrating the corresponding bolt hole of the outer splice plate 26, and the outer splice plate 26 is stopped at a position parallel to the lower flange 23. Bolts 28 are inserted into other bolt holes of the outer splice plate 26, the lower flange 23 and the inner splice plate 25 and tightened with nuts 29. If the jig 1 is pulled out from the end of the H-shaped steel frame 21 in the longitudinal direction and removed, the assembly work is completed. Since the lower end of the locking member 2 is located away from the bolt hole row, the operation is smoothly completed without interfering with the bolt hole when the jig 1 is pulled out.

  The jig of the present invention is used for temporarily fixing an outer splice plate under a lower flange of an H-shaped steel frame, for example, at a steel processing site where a large steel frame is handled.

It is a perspective view of the use condition of the assembly tool of the splice board concerning the present invention. It is a front view of the use condition of the assembly tool of the splice board concerning the present invention. It is a front view of the assembly tool of the splice board concerning the present invention. It is a side view of the assembly tool of the splice board concerning the present invention. It is a top view of the assembly tool of the splice board concerning the present invention. It is explanatory drawing which shows the assembly | attachment process of the splice board which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Jig 2 Locking member 3 Suspension member 4 Supporting member 5 Roller member 6 Screw rod 7 Nut 8 Door wheel 21 H-type steel frame 22 Upper flange 23 Lower flange 24 Web 25 Inner splice plate 26 Outer splice plate 27 Positioning rod 28 Bolt 29 Nut

Claims (5)

After mounting the inner splice plate on the lower flange of the H-shaped steel frame with the flange placed horizontally, the outer splice plate is placed at the predetermined position when assembling the outer splice plate on the lower surface of the lower flange. A jig that is used by being mounted on the lower flange of the H-shaped steel frame,
A pair of locking members that are locked in the vicinity of both edges in the width direction of the lower flange of the inner splice plate on the lower flange, and an upper portion of the lower flange that is coupled to the locking member so that the relative vertical position can be adjusted. A pair of suspension members that hang outward at both ends in the width direction, a support member that is coupled to the suspension members at both ends and traverses the lower flange at a predetermined parallel interval, and an outer splice plate mounted thereon A roller member mounted on the support member for feeding in the longitudinal direction of the steel frame,
The roller member is in contact with the lower surface of the outer splice plate at a position where it does not interfere with the bolt hole of the outer splice plate, and forms a swing fulcrum in the longitudinal direction of the outer splice plate. Jig for assembling the splice plate for flange connection.   The locking member is arranged so that the lower end abuts on the inner splice plate outside the row of the bolt holes in the width direction of the lower flange so as not to interfere with the bolt holes of the inner splice plate. The jig for assembling the splice plate for connecting the lower flange of the H-shaped steel frame according to claim 1. The locking member includes a screw rod extending perpendicularly to the lower flange and contacting the upper surface of the inner splice plate at the lower end;
2. A splice plate for connecting a lower flange of an H-shaped steel frame according to claim 1, wherein nut members for screwing the screw rods are respectively fixed to side surfaces of the upper portions of the pair of suspension members facing each other. Jig for assembly.   The assembly of the splice plate for connecting the lower flange of the H-shaped steel frame according to claim 1, wherein a pair of the roller members are provided with a space in the width direction across the center of the width direction of the lower flange. Jig. Placing the inner splice plate at a predetermined position on the lower flange of the H-shaped steel frame with the flange placed horizontally;
Attaching the jig for assembling the splice plate to the lower flange by locking the pair of locking members near both edges in the width direction of the lower flange of the inner splice plate on the lower flange;
Inserting an outer splice plate in the longitudinal direction between the lower flange and the roller member from the tip side of the H-shaped steel frame, and moving the outer splice plate on the roller member to a predetermined position;
At a predetermined position, while the outer splice plate is swung on the roller member, a positioning rod is inserted so as to pass through the bolt hole of the inner splice plate and the lower flange, and the tip of this positioning rod is aligned with the outer splice plate. A step of stopping the outer splice plate at a position parallel to the lower flange by penetrating the bolt hole to be
Inserting a bolt into another predetermined bolt hole of the outer splice plate, the lower flange and the inner splice plate and tightening with a nut;
2. The assembly of the splice plate using the splice plate assembly jig according to claim 1, further comprising a step of pulling out the splice plate assembly jig in the longitudinal direction from an end of the H-shaped steel frame. Method.

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