JP5123687B2 - Beam / beam joint structure and column / beam joint structure - Google Patents

Description

  The present invention relates to a beam / beam joint structure for joining small beams between large beams and a column / beam joint structure for joining beams between columns.

  Conventionally, in a beam / beam joint structure in which a small beam is joined between large beams, generally, the small beam is inserted and joined via a joining member such as a gusset plate between the web portions of the large beams (for example, Patent Documents). (See 1 etc.).

Conventionally, in a column / beam connection structure in which beams are bonded between columns, generally, a beam is inserted and bonded between flange portions of columns via a bonding member such as a gusset plate (for example, Patent Documents). (See 2 etc.).
JP 2007-332615 A Japanese Patent Publication No. 63-53338

  However, in the conventional beam / beam connection structure described above, an error occurs between the large beams and the length of the small beams due to variations in the accuracy of the construction of the large beams.

  For this reason, a joining member such as a gusset plate is first provided on the web portion side of the large beam, and then the small beam is arranged between these joining members so that the error between the large beam and the length of the small beam can be adjusted. Since it had to be inserted and joined by welding or bolting or the like, and workability was not good, it was uneconomical.

  Further, in the conventional column / beam joint structure described above, an error occurs between the columns and the length of the beam due to variations in the accuracy of the column construction.

  For this reason, a joining member such as a gusset plate is first provided on the flange portion side of the column, and then a beam is inserted between these joining members so that the error between the column and the length of the beam can be adjusted. This is uneconomical because it has to be welded or bolted and the workability is poor.

  Accordingly, an object of the present invention is to provide a beam / beam joint structure and a column / beam joint structure that are easy to work and can be economically implemented.

  In order to achieve the above object, a beam / beam joint structure according to the present invention is a beam / beam joint structure in which a small beam is joined between large beams, and between the large beams and the small beams at the ends of the small beams. The inside of the joining member having a shape capable of absorbing an error from the length of the joint is attached in advance, the small beam is inserted between the large beams, and the outside of the joining member is joined to the web portion of the large beam. It is characterized by.

  Here, the joining member is an attachment surface that is attached to the web portion at the end of the small beam, a folded surface that is folded at a bending portion near the attachment surface, and a folded portion that is joined to the web surface of the large beam. A folded surface that is folded back, and a space that can absorb an error between the large beams and the length of the small beams is provided between the folded surface and the folded surface. Good.

  The web portion of the large beam and the folded surface and the folded surface of the joining member may be joined by being fastened and fixed by a fastening member from the web portion side of the large beam.

  Furthermore, the fastening member may be a tapping screw.

  The column / beam junction structure of the present invention is a column / beam junction structure in which beams are joined between columns, and has a shape capable of absorbing an error between the columns and the length of the beam at an end of the beam. The inside of the joining member is attached in advance, the beam is inserted between the columns, and the outside of the joining member is joined to the web portion of the column.

  Here, the joining member is folded back at an attachment surface attached to the web portion at the end of the beam, a folded surface folded at a bending portion near the attachment surface, and a folded portion joined to the web surface of the column. It is good to have a shape in which a gap capable of absorbing an error between the columns and the length of the beam is provided between the folding surface and the folding surface.

  The web portion of the column and the folded surface and the folded surface of the joining member may be joined by being fastened and fixed by a fastening member from the web portion side of the column.

  Furthermore, the fastening member may be a tapping screw.

  In such a beam-to-beam connection structure of the present invention, the inner side of the connecting member having a shape capable of absorbing the error between the large beams and the length of the small beams is attached in advance to the end portions of the small beams. It is inserted between the large beams, and the outside of the bonding member is bonded to the web portion of the large beams. Therefore, since the inside of the joining member having a shape that can absorb the error between the large beams and the length of the small beams is attached in advance to the end portions of the small beams, it is only necessary to insert and bond them between the large beams. Compared with a conventional beam / beam joint structure in which a joining member such as a gusset plate is attached in advance to the large beam side, the workability is good. In addition, since the workability is good in this way, it can be implemented economically.

  Here, the joining member is folded back at the folding surface that is joined to the web surface of the large beam and the folding surface that is folded at the folding surface near the mounting surface that is attached to the web portion at the end of the small beam. If there is a gap between the bending surface and the folding surface that can absorb the error between the large beams and the length of the small beams, the space between the large beams and the small beams A joining member having a shape capable of absorbing an error from the length can be manufactured at a low cost with a simple configuration.

  In addition, when the web part of the large beam and the folded surface and the bent surface of the joining member are joined by fastening with a fastening member from the web part side of the large beam, it is more workable than when welding. Is good.

  Further, when the fastening member is a tapping screw, a screw driver or the like is used without providing holes in the folded surface and the folded surface of the joining member in advance without taking into account variations in the accuracy of construction of the large beam. By simply screwing in the tapping screws, the small beams can be joined between the large beams, and the workability is even better.

  In such a column / beam joint structure of the present invention, the inside of a joint member having a shape capable of absorbing the error between the columns and the length of the beam is attached in advance to the end of the beam. It is set as the structure inserted and the outer side of the joining member is joined to the web part of the pillar. Therefore, since the inside of the joining member having a shape capable of absorbing the error between the columns and the length of the beam is attached in advance to the end portion of the beam, it is only necessary to insert and join it between the columns. Workability is better than a conventional column / beam joint structure in which a joining member such as a gusset plate is attached in advance to the side. In addition, since the workability is good in this way, it can be implemented economically.

  Here, the connecting member is attached to the web portion at the end of the beam, the folded surface folded at the bent portion near the attaching surface, and the folded surface folded back at the folded portion joined to the web surface of the column. If the gap between the folding surface and the folding surface is provided with a gap that can absorb the error between the columns and the length of the beam, the space between the columns and the length of the beam A joining member having a shape capable of absorbing an error can be manufactured at a low cost with a simple configuration.

  In addition, when the column web part and the folded surface and the bent surface of the joining member are joined by fastening with a fastening member from the column web part side, the workability is higher than when welding. Is good.

  Furthermore, when the fastening member is a tapping screw, a screw driver or the like is used without providing holes on the folded surface and the folding surface of the joining member in advance without taking into account variations in the accuracy of the column construction. By simply screwing in the tapping screws, the beams can be joined between the columns, and the workability is even better.

  Hereinafter, the best mode for realizing the present invention will be described based on Examples 1 and 2 shown in the drawings.

  First, the beam / beam connection structure of Example 1 will be described.

  As shown in FIGS. 1 and 2, the beam / beam connection structure of the first embodiment has a web of the small beam 2 when the small beam 2 of the grooved steel is bonded between the large beams 1 and 1 of the grooved steel. The inner sides of the joining members 3 and 3 having a shape capable of absorbing the error between the large beams 1 and 1 and the length of the small beam 2 are respectively attached to both ends of the portion 2a. The small beam 2 is inserted between the large beams 1, 1, and the outside of the joining members 3, 3 is bonded to the respective web portions 1 a of the large beams 1, 1.

  Here, as shown in FIG. 3, the joining member 3 has an attachment surface 3a attached to the web portion 2a at both ends of the beam 2 and a bent portion 3b in the vicinity of the attachment surface 3a. The folded surface 3c is folded and the folded surface 3e is folded substantially parallel to the folded surface 3c at the folded portion 3d joined to the web surface 1a of the large beams 1 and 1. And it is the shape where the clearance gap 3f which can absorb the difference | error of between the large beams 1 and 1 and the length of the small beam 2 was provided between the bending surface 3c and the folding surface 3e.

  The joining member 3 is provided with notches 30A and 30A at both ends of the bent portion 3b and the folded portion 3d, respectively, so that bending can be easily performed.

  Or as shown in FIG. 4, you may comprise notch 30B in the intermediate part of the bending part 3b and the folding | returning part 3d, respectively, and it can comprise so that a bending process can be performed easily.

  As shown in FIGS. 2 and 5, the web portions 1 a of the large beams 1, 1 and the folded surface 3 e and the bent surface 3 c of the joining member 3 are located on the respective web portions 1 a side of the large beams 1, 1. The screw holes 1b, 1b that have been provided are fastened and fixed by two tapping screws 4, 4 as fastening members.

  However, although the number of tapping screws 4 as the fastening member is two, one for each side, a total of four, the number is not limited to this, and the number corresponding to the required strength may be used.

  Next, the construction procedure of the beam / beam joint structure of the first embodiment will be described.

  First, as shown in FIG. 6, between the large beams 1 and 1 having the internal dimension L1, the small beams 2 in which the joining members 3 and 3 having a dimension L2 slightly longer than the internal dimension L1 are attached at both ends are inserted. .

  Then, the error between the internal dimension L1 between the large beams 1 and 1 and the length L2 of the small beam 2 with the joining members 3 and 3 attached to both ends is absorbed, and the joining members 3 and 3 are shown in FIG. Deform as shown.

  Then, a tapping screw 4 is prepared, and as shown in FIG. 8, the tapping screw 4 is inserted from the screw hole 1b of the large beam 1 and is first joined at its drill portion 4a using a screw driver (not shown). A hole is made in the folded surface 3 e of the member 3.

  Subsequently, as shown in FIG. 9, a hole is also made in the bending surface 3c of the joining member 3 by the drill portion 4a.

  Subsequently, as shown in FIG. 10, the tapping screw 4 is turned to screw the threaded portion 4 b into the folded surface 3 e of the joining member 3.

  Further, as shown in FIG. 11, the tapping screw 4 is turned to screw the threaded portion 4 b into the bending surface 3 c of the joining member 3.

  At this time, since the thread pitch of the threaded portion 4b of the tapping screw 4 is constant, the distance E between the bent surface 3c and the folded surface 3d is kept constant, so that the shape of the joining member 3 is maintained in this state. Is done.

  Finally, as shown in FIG. 5, the tapping screw 4 is screwed in until the head 4 c comes into close contact with the surface of the web portion 1 a of the large beam 1, and the beam / beam joint structure of Example 1 is completed.

  Next, the function and effect of the beam / beam joint structure of the first embodiment will be described.

  In such a beam / beam joint structure of the present invention, the inner sides of the joint members 3 and 3 having a shape capable of absorbing the error between the large beams 1 and 1 and the length of the small beam 2 are provided in advance at both ends of the small beam 2. The small beam 2 is inserted between the large beams 1 and 1, and the outside of the joining members 3 and 3 is bonded to the web portion 1 a of the large beam 1.

  Therefore, since the insides of the joining members 3 and 3 having a shape capable of absorbing the error between the large beams 1 and 1 and the length of the small beam 2 are attached to both ends of the small beam 2 in advance, It only needs to be inserted and joined between the two, and the workability is better than a conventional beam / beam joint structure in which a joining member such as a gusset plate is attached in advance to the large beams 1 and 1 side.

  In addition, since the workability is good in this way, it can be implemented economically.

  Here, the joining member 3 joins the attachment surface 3a attached to the web portion 2a at the end of the small beam 2, the bending surface 3c bent at the bending portion 3b near the attachment surface 3a, and the web surface 1a of the large beam 1. And a folded surface 3e folded at the folded portion 3d.

  Since the gap 3f that can absorb the error between the large beams 1 and 1 and the length of the small beam 2 is provided between the bent surface 3c and the folded surface 3e, The joining member 3 having a shape capable of absorbing an error from the length of the beam 2 can be manufactured at a low cost with a simple configuration.

  Further, since the web portion 1a of the large beam 1 and the folded surface 3e and the bent surface 3c of the joining member 3 are joined by being fastened and fixed with a tapping screw 4 as a fastening member from the web portion 1a side of the large beam 1. Workability is better than when joining.

  Furthermore, since the tapping screws 4,... Are used as the fastening members, the folding surfaces 3e and the folding surfaces 3c of the joining member 3 are previously provided without specially considering variations in the construction accuracy of the large beams 1, 1. The small beam 2 can be joined between the large beams 1 and 1 simply by screwing the tapping screws 4,... With a screw driver or the like without providing a hole, and the workability is further improved.

  Next, the column / beam joint structure of Example 2 will be described.

  As shown in FIGS. 12 and 13, in the column / beam joint structure of the second embodiment, when the grooved steel beam 20 is joined between the grooved steel columns 10, 10, the web portion 20 a of the beam 20. The inner sides of the joining members 3 and 3 having a shape capable of absorbing the error between the columns 10 and 10 and the length of the beam 20 are respectively attached in advance to both ends. The beam 20 is inserted between the columns 10 and 10, and the outer sides of the joining members 3 and 3 are joined to the web portions 10 a of the columns 10 and 10.

  Here, as shown in FIG. 3, the joining member 3 is bent upward at a substantially right angle by a mounting surface 3a attached to the web portion 20a at both ends of the beam 20 and a bent portion 3b in the vicinity of the mounting surface 3a. The folded surface 3c and the folded surface 3e folded back substantially parallel to the folded surface 3c at the folded portion 3d joined to the web surface 10a of the pillars 10 and 10 are provided. And it is the shape where the clearance gap 3f which can absorb the difference | error between the pillars 10 and 10 and the length of the beam 20 was provided between the bending surface 3c and the folding surface 3e.

  The joining member 3 is provided with notches 30A and 30A at both ends of the bent portion 3b and the folded portion 3d, respectively, so that bending can be easily performed.

  Or as shown in FIG. 4, you may comprise notch 30B in the intermediate part of the bending part 3b and the folding | returning part 3d, respectively, and it can comprise so that a bending process can be performed easily.

  Further, as shown in FIGS. 13 and 14, the respective web portions 10 a of the columns 10, 10 and the folded surface 3 e and the bent surface 3 c of the joining member 3 are disposed on the respective web portions 10 a side of the columns 10, 10. The screw holes 10b, 10b that have been provided are fastened and fixed by two tapping screws 4, 4 as fastening members.

  However, although the number of tapping screws 4 as the fastening member is two, one for each side, a total of four, the number is not limited to this, and the number corresponding to the required strength may be used.

  Next, the construction procedure of the column / beam joint structure of the second embodiment will be described.

  First, as shown in FIG. 15, a beam 20 in which joint members 3 and 3 having a dimension L2 slightly longer than the inner dimension L1 are attached to both ends is inserted between the columns 10 and 10 having the inner dimension L1.

  Then, the error between the internal dimension L1 between the columns 10 and 10 and the length dimension L2 of the beam 20 with the joining members 3 and 3 attached to both ends is absorbed, and the joining members 3 and 3 are shown in FIG. Deforms like

  Then, a tapping screw 4 is prepared, and as shown in FIG. 17, the tapping screw 4 is inserted from the screw hole 10b of the pillar 10 and is first joined by the drill portion 4a using a screw driver (not shown). A hole is made in the folded surface 3 e of the member 3.

  Subsequently, as shown in FIG. 18, a hole is also made in the bending surface 3c of the joining member 3 by the drill portion 4a.

  Subsequently, as shown in FIG. 19, the tapping screw 4 is turned to screw the threaded portion 4 b into the folded surface 3 e of the joining member 3.

  Further, as shown in FIG. 20, the tapping screw 4 is turned to screw the threaded portion 4 b into the bent surface 3 c of the joining member 3.

  At this time, since the thread pitch of the threaded portion 4b of the tapping screw 4 is constant, the distance E between the bent surface 3c and the folded surface 3d is kept constant, so that the shape of the joining member 3 is maintained in this state. Is done.

  Finally, as shown in FIG. 14, the tapping screw 4 is screwed in until the head 4 c comes into close contact with the surface of the web portion 10 a of the column 10, thereby completing the beam / beam connection structure of the second embodiment.

  Next, the effect of the column / beam joint structure of the second embodiment will be described.

  In such a column / beam joint structure of the present invention, the inner sides of the joint members 3 and 3 having a shape capable of absorbing an error between the columns 10 and 10 and the length of the beam 20 are attached to both ends of the beam 20 in advance. The beam 20 is inserted between the pillars 10 and 10, and the outer sides of the joining members 3 and 3 are joined to the web portion 10 a of the pillar 10.

  Therefore, since the inside of the joining members 3 and 3 having a shape capable of absorbing an error between the columns 10 and 10 and the length of the beam 20 is attached in advance to both ends of the beam 20, it is connected between the columns 10 and 10. It is only necessary to be inserted and joined to each other, and the workability is better than a conventional pillar / beam joining structure in which a joining member such as a gusset plate is attached in advance to the pillars 10 and 10 side.

  In addition, since the workability is good in this way, it can be implemented economically.

  Here, the joining member 3 is joined to the attachment surface 3a attached to the web portion 20a at the end of the beam 20, the bending surface 3c bent at the bending portion 3b near the attachment surface 3a, and the web surface 10a of the column 10. And a folded surface 3e folded by the folded portion 3d.

  Since the gap 3f that can absorb the error between the columns 10 and 10 and the length of the beam 20 is provided between the bending surface 3c and the folding surface 3e, the space between the columns 10 and 10 and the beam The joining member 3 having a shape capable of absorbing an error from the length of 20 can be manufactured at a low cost with a simple configuration.

  Further, since the web portion 10a of the column 10 and the folded surface 3e and the bent surface 3c of the joining member 3 are joined by being fastened and fixed with a tapping screw 4 as a fastening member from the web portion 10a side of the pillar 10, welding is performed. Workability is better than when joining.

  Furthermore, since the tapping screws 4,... Are used as the fastening members, the folding surfaces 3e and the folding surfaces 3c of the joining member 3 are previously provided without taking into account variations in the accuracy of building the pillars 10, 10. Without providing a hole, the beam 20 can be joined between the pillars 10 and 10 simply by screwing the tapping screws 4,... Using a screw driver or the like, and the workability is further improved.

  The best embodiment of the present invention has been described in detail based on the first and second embodiments with reference to the drawings. However, the specific configuration is not limited to the first and second embodiments described above. Design changes that do not depart from the gist of the invention are included in the present invention.

  For example, in the beam / beam joint structure of Example 1 described above, the grooved steel is used as the large beam 1 and the small beam 2, but the present invention is not limited to this. Good.

  In the column / beam joint structure of Example 2 described above, grooved steel is used as the column 10 and the beam 20, but the present invention is not limited to this, and H-shaped steel or the like may be used.

It is a top view which shows schematic structure of the beam-beam junction structure of Example 1 of this invention. It is an AA arrow directional cross-sectional view in FIG. It is a perspective view which shows the joining member used for this invention. It is a perspective view which shows the joining member used for this invention. FIG. 3 is a cross-sectional view taken along line B-B in FIG. 2. It is explanatory drawing which shows the insertion step of the small beam between the large beams in the beam-beam junction structure of Example 1 of this invention. It is explanatory drawing which shows the joining stage of a big beam and a small beam. It is explanatory drawing which shows the joining stage of a big beam and a small beam. It is explanatory drawing which shows the joining stage of a big beam and a small beam. It is explanatory drawing which shows the joining stage of a big beam and a small beam. It is explanatory drawing which shows the joining stage of a big beam and a small beam. It is a front view which shows schematic structure of the column-beam junction structure of Example 2 of this invention. FIG. 13 is a plan view of the column / beam joint structure of FIG. 12. It is CC sectional view taken on the line in FIG. It is explanatory drawing which shows the insertion step of the beam between pillars in the pillar-beam joining structure of Example 2 of this invention. It is explanatory drawing which shows the joining step of a column and a beam. It is explanatory drawing which shows the joining step of a column and a beam. It is explanatory drawing which shows the joining step of a column and a beam. It is explanatory drawing which shows the joining step of a column and a beam. It is explanatory drawing which shows the joining step of a column and a beam.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Large beam 1a Large beam web part 2 Small beam 2a Small beam web part 3 Joining member 3a Attachment surface 3b Bending part 3c Bending surface 3d Folding part 3e Folding surface 3f Gap 4 Tapping screw (fastening member)
10 Pillar 10a Column web portion 20 Beam 20a Beam web portion

Claims (4)

It is a beam / beam joint structure that joins small beams between large beams,
An inner side of a joining member having a shape capable of absorbing an error between the large beams and the length of the small beams is attached in advance to the end portions of the small beams, and the small beams are inserted between the large beams, and the joint The outside of the member is joined to the web portion of the girder ,
The joining member was folded back at an attachment surface attached to the web portion at the end of the small beam, a folded surface folded at a bending portion near the attachment surface, and a folded portion joined to the web surface of the large beam. A folding surface, and between the folding surface and the folding surface is a shape provided with a gap capable of absorbing an error between the large beams and the length of the small beams,
The beam-to-beam joint structure is characterized in that the web portion of the large beam and the folded surface and the bent surface of the joining member are fastened and fixed by a fastening member from the web portion side of the large beam . The beam-beam connection structure according to claim 1 , wherein the fastening member is a tapping screw. A column / beam connection structure that joins beams between columns,
An inner side of a joining member having a shape capable of absorbing an error between the columns and the length of the beam is attached in advance to the end of the beam, and the beam is inserted between the columns, and the outer side of the joining member Is joined to the web portion of the pillar ,
The joining member includes an attachment surface attached to a web portion at an end of the beam, a folded surface folded at a folding portion near the attachment surface, and a folded portion folded at a folded portion joined to the web surface of the column. A gap between the folding surface and the folded surface is provided with a gap capable of absorbing an error between the columns and the length of the beam,
The column / beam joint structure is characterized in that the web portion of the column and the folded surface and the folded surface of the joining member are fastened and fixed by a fastening member from the web portion side of the column. The column / beam joint structure according to claim 3 , wherein the fastening member is a tapping screw.