JP5041863B2 - Steel frame - Google Patents

Description

  The present invention relates to a steel frame construction method in which the diversion efficiency of a construction jig is improved to the same level as a lamination method.

The steel erection method is used when making a structure such as a steel structure (S structure) or a steel reinforced concrete structure (SRC structure). FIG. 4 shows a column 1 made of a steel frame used in the steel frame construction disclosed in Patent Document 1 and Patent Document 2. On the leg and head of the pillar 1, the erection piece 28; 29 made of an iron plate has two straight lines L1; L2 orthogonal to each other in one plane when the pillar 1 is viewed from above. It is provided so as to be located at a vertical position from a position intersecting with. FIG. 5 shows a construction jig 8 used for the steel construction disclosed in Patent Document 1 and Patent Document 2. A plurality of iron jig bolts 15; 16; 17 are positioned on the side wall and the end wall of the jig main body 14 in the annular iron jig main body 14 surrounding the slit 13 of the construction jig 8. Provided separately. When the heads of the jig bolts 15 to 17 are separately rotated in one direction, the tip ends of the jig bolts 15 to 17 protrude separately from the jig body 14 toward the slit 13, and the jig bolt When the heads 15 to 17 are separately rotated in the opposite directions, the tip portions of the jig bolts 15 to 17 are separately drawn from the slit 13 toward the jig body 14. FIG. 6 shows the steel frame construction disclosed in Patent Document 1 and Patent Document 2. As the steel frame construction method, two pillars 1 shown in FIG. 4 are used, one of which is an upper joint pillar 6 and the other pillar 1 is a lower joint pillar 7. An example of using the construction jig 8 shown in FIG. In FIG. 6, first, the upper node pillar 6 is installed. For this purpose, the legs of the upper column 6 are placed on the head of the lower column 7 which has already been installed and rebuilt, and the slit 13 of the construction jig 8 is inserted into the upper column 6 and the lower column. The jig bolt 15 corresponds to the erection piece 28 and the jig bolt 16; 17 corresponds to the erection piece 29. Next, the repositioning of the upper joint pillar 6 with respect to the lower joint pillar 7 is performed. For this purpose, the heads of the plurality of jig bolts 15 to 17 are separately rotated. As a result of the re-installation, the upper joint pillar 6 is vertically aligned and centered, and the upper joint pillar 6 and the lower joint pillar 7 are arranged coaxially and vertically in a column. However, the stress generated for the self-supporting steel frame against wind load or the like must be borne by the construction jig 8 and the erection pieces 28; 29. For this reason, when the building escape construction method that builds the pillar 1 from the foundation to the top of the structure at once is used for the steel frame construction, the construction of the upper joint pillar 6 using the construction jig 8 and the re-installation are performed. After the construction, the construction jig 8 is removed from the part, and the re-installation of the upper joint pillar 6 is completed as the lower joint pillar 7 and another pillar 1 is newly constructed as the upper joint pillar 6. It cannot be used when entering and rebuilding, that is, the construction jig 8 cannot be diverted to the upper and lower nodes, and there is a disadvantage that the number of construction jigs 8 used increases.
JP-A-11-303404 Japanese Patent Laid-Open No. 11-303406

  The problem to be solved by the invention is that the number of building jigs used is increased.

A steel frame construction method according to the present invention includes an annular jig body that surrounds a slit, and a plurality of bolts individually provided on the side wall portion and the end wall portion of the jig body, Osamu Kenkata is configured so that the tip of each bolt protrudes separately from the jig body toward the slit and is pulled separately from the slit toward the jig body when the parts are rotated separately. And an erection piece provided on the outer surface of the upper and lower columnar legs and head, and an erection piece on the upper columnar leg and an erection piece on the lower columnar head Bolt mounting via the bolt insertion side support member and bolt mounting side support member formed by the arranged iron plate, the bolt insertion hole provided in the bolt insertion side support member, and the bolt through hole provided in the erection piece And a high-strength bolts to be fastened to the bolt mounting hole provided in the support member, the erection piece of the leg portion of the upper section column is jig body of erection jig already Tateiri and Tateiri re terminated under clause After the installation of the upper joint column using the installation jig for the lower joint column that has already been installed and rebuilt so that it is fitted to the erection piece at the head of the column, the bolt of the construction jig of make Tateiri fix in the leg portion of the upper section column with respect to the head of the section below posts by the operation, then, so as to sandwich the erection piece of the head of the erection piece and the section below column in the leg portion of the upper section column The bolt insertion side support member and the bolt attachment side support member are arranged, and the high strength bolt is passed through the bolt insertion side support member and the erection piece and fastened to the bolt attachment side support member, and the erection pin at the leg portion of the upper joint column is secured. By combining the erection piece of the head of the scan and the lower section pillars, then, after the outside from the erection piece in the erection piece and the head of the section below Column in the leg portion of the upper section pillars erection jig, above clause It is characterized in that the column leg and the lower section column head are joined by welding.
In addition, after welding the upper section column leg and the lower section column head by welding, the erection piece is positioned at a position between the upper section column and the support member or between the lower section column and the support member. It is also characterized by cutting.

  In the steel frame construction method according to the present invention, after the upper and lower pillars are erected and reinserted with respect to the lower joint pillar using the construction jig, the high-strength bolt and the support member are the leg portions of the upper joint pillar. By joining the erection piece at the head and the erection piece at the head of the lower column, the stress generated for the steel frame self-sustained against the wind load or the like is borne by the high-strength bolt, the support member, and the erection piece. For this reason, after the upper and lower columnars are joined by the high-strength bolt and the support member, the construction jig is removed from the portion where the upper and lower columnars are installed and re-installed. However, since the steel frame self-supporting against the wind load etc. is properly maintained, the removed construction jig is newly installed and used with the upper column as the lower column and another column as the upper column. Can be used when rebuilding, that is, the construction jig can be diverted to upper and lower nodes, the number of construction jigs used will not increase, and the diversion efficiency of construction jigs will be improved to the same level as the lamination method There is. The leg of the upper column and the head of the lower column are joined by welding, and the erection piece is cut at a position between the upper and lower support columns and the support member. For example, there is an advantage that it is not necessary to remove the high-strength bolt and the support member from the erection piece during the steel frame construction.

  1 to 3 show the best mode for carrying out the invention. FIG. 1 shows a process for building a steel frame. FIG. 2 shows the pillar 1. FIG. 3 shows the upper joint pillar 6, the lower joint pillar 7, the construction jig 8, the load support 9, the high strength bolts 10; 11, and the support member 12.

  With reference to FIG. 2, the column 1 which consists of steel frames used for a steel frame construction is demonstrated. The erection piece 2; 3 has two straight lines L 1; L 2 that are orthogonal to each other in one plane when the column 1 is viewed from above, at the leg and head of the column 1. It is provided so as to be located at a vertical position from the position. The erection piece 2 is provided with a plurality of bolt through holes 4 which are divided in the vertical direction. The erection piece 3 is provided with a plurality of bolt through holes 5 divided in the vertical direction. That is, in the erection piece 2; 3, the dimension H1 protruding outward from the column 1 of the erection piece 2; 3 is larger than the dimension H2 protruding outward from the column 1 of the erection piece 28; 29 in FIG. > H2) and the provision of the bolt through holes 4; 5 differ from the erection piece 28; 29 in FIG.

  With reference to FIG. 3, the upper joint pillar 6, the lower joint pillar 7, the construction jig 8, the load support tool 9, the high-strength bolts 10; In FIG. 3, two pillars 1 shown in FIG. 2 are used as the upper joint pillar 6 and the lower joint pillar 7, one of which is the upper joint pillar 6, and the other pillar 1 is The lower node 7 is designated. The construction jig 8 is the same as the construction jig 8 of FIG. 5, and a plurality of jig bolts 15 to 17 are attached to the annular jig main body 14 surrounding the slit 13 and the side wall portion of the jig main body 14. And separately provided at the end wall. When the heads of the jig bolts 15 to 17 are rotated separately, the tips of the jig bolts 15 to 17 protrude separately from the jig main body 14 toward the slit 13 or from the slit 13 to the jig main body 14. Or be drawn separately.

  The load support 9 is disclosed in FIG. 1 and FIG. 4 of Patent Document 2, and a pair of upper and lower arms 18 and 19 made of iron sandwich an iron wedge 20, and one arm 18 is provided with an iron support bolt 21. . When the head of the support bolt 21 is rotated in one direction, the tip of the support bolt 21 protrudes from one arm 18 toward the wedge 20, and the wedge 20 moves from the arm 18 toward the arm 19. When it rotates and moves to the direction which opens the opening H3 between the front-end | tip parts of the arm 18; 19 to an up-down direction, and the head of the support bolt 21 is rotated in the reverse direction, the front-end | tip part of the support bolt 21 will become a wedge 20. Then, the wedge 20 rotates from the arm 19 toward the arm 18 and moves in a direction to close the opening H3 between the distal ends of the arms 18 and 19 in the vertical direction.

  A plurality of high-strength bolts 10 and 11 are prepared for use in the erection piece 2 at the leg portion of the upper node column 6 and the erection piece 3 at the head portion of the lower node column 7.

  The support member 12 includes a bolt insertion side support member 22 and a bolt attachment side support member 23. The bolt insertion side support member 22 is an iron plate that is passed over the erection piece 2 at the leg portion of the upper node column 6 and the erection piece 3 at the head portion of the lower node column 7. The bolt insertion side support member 22 is provided with a plurality of bolt insertion holes 24; 25 as through holes corresponding to the bolt through holes 4; The bolt attachment side support member 23 is an iron plate that is passed over the erection piece 2 in the leg portion of the upper joint column 6 and the erection piece 3 in the head portion of the lower joint column 7. The bolt mounting side support member 23 is provided with a plurality of bolt mounting holes 26; 27 in a shape in which female threads are formed in through holes corresponding to the bolt through holes 4;

  With reference to FIG. 1, the steel frame construction will be described. As shown in step 101 of FIG. 1, the upper column 6 is erected and rebuilt. In other words, when the upper column 6 is installed, the leg of the upper column 6 is placed on the head of the lower column 7 that has already been installed and rebuilt, and the slit of the building jig 8 13 is fitted into the erection piece 2; 3 from the outside of the upper and lower column posts 6 and 7, the jig bolt 15 corresponds to the erection piece 2, and the jig bolt 16; 17 corresponds to the erection piece 3. Thereafter, the load support 9 is inserted between the erection pieces 2 and 3 from the outside of the construction jig 8. That is, the tip of the arm 18; 19 sandwiching the wedge 20 of the load support 9 is inserted between the erection pieces 2; 3 via the slit 13, and the support bolt 21 is placed outside the building jig 8. Be placed. In that state, the upper section pillar 6 is rebuilt. That is, the heads of the jig bolts 15 to 17 and the heads of the support bolts 21 are rotated, and the upper joint column 6 is re-installed with respect to the lower joint column 7. In FIG. 1, the load support tool 9 is used in Step 101, whereas the load support tool 9 is not used in FIG. 6. However, it is not necessary to use the load support tool 9 in step 101 of FIG. 1, and the load support tool 9 may be used in FIG.

  The next step, step 102 in FIG. 1, will be described. In the description of step 102, refer to FIG. 3 for the bolt through holes 4; 5, the bolt insertion holes 24; 25, and the bolt mounting holes 26; In step 102, the bolt insertion side support member 22 and the bolt attachment side support member 23 are arranged so as to sandwich both the erection pieces 2; 3, and the tip of the high strength bolt 10 extends from the bolt insertion hole 24 to the erection piece. 2 is fastened to the bolt mounting hole 26 via the bolt through hole 4, and the tip of the high strength bolt 11 is fastened from the bolt insertion hole 25 to the bolt mounting hole 27 via the bolt through hole 5 of the erection piece 3. The Thereby, the erection piece 2 of the upper joint column 6 and the erection piece 3 at the head of the lower joint column 7 in which the high strength bolts 10; The stress generated for the self-supporting is borne by the high-strength bolts 10; 11, the support member 12, and the erection piece 2; For this reason, even if the building escape construction method that builds the pillar 1 from the foundation to the top of the structure at once is adopted for the steel frame construction, the construction and re-installation of the upper joint pillar 6 using the construction jig 8 After the construction, the construction jig 8 is removed from the portion, and the re-installed upper joint pillar 6 is newly used as the lower joint pillar 7 and another pillar 1 is newly provided as the upper joint pillar 6. There is an advantage that it can be used repeatedly when building and rebuilding. That is, there is an advantage that the construction jig 8 can be diverted to the upper and lower nodes and the number of construction jigs 8 used does not increase. When the load support tool 9 is used, the load support tool 9 is also removed together with the construction jig 8.

  In short, in the state in which the upper joint column 6 is installed and re-installed using the construction jig 8, as shown in step 102 of FIG. 1, the high strength bolts 10; 11, the support member 12, As a result of the provisional connection of the two columns 1 consisting of the upper and lower columnar columns 6 and 7, the stress generated for the steel frame self-sustained against wind load or the like is high-strength bolts 10; Since it is borne by the erection piece 2; 3, the construction jig 8 can be removed from the part, and when the removed construction jig 8 is newly installed and re-installed Can be used repeatedly. Therefore, there is an advantage that the diversion efficiency of the construction jig 8 is improved to the same level as the laminating method. The lamination method is a method of assembling, finishing, and completing works such as facilities at the same time for each layer in units of the first to several floors of the structure.

  In addition, since the high-strength bolts 10; 11 and the support member 12 form a temporary connection between the two pillars 1 including the upper joint pillar 6 and the lower joint pillar 7, before the construction jig 8 is removed. It is not necessary to join the upper joint column 6 and the lower joint column 7 with the weld 30 prior to the above, and there is an advantage that the construction escape construction method can be appropriately adopted for the steel frame construction. In other words, the welding between the upper and lower column 6 and 7 takes more time than the work of erection and reconstruction, but the column 1 from the foundation to the top without waiting for the welding. The building escape construction method can be adopted for steel construction. In other words, there is an advantage that the work of constructing the pillar 1 from the foundation to the top at a stretch and the work of welding the upper joint pillar 6 and the lower joint pillar 7 can be performed separately.

  In addition, after the leg portion of the upper node column 6 and the head of the lower node column 7 are joined by welding 30, the erection piece 2; 3 is indicated by an imaginary line L3 between the upper node column 6 and the support member 12. The position is cut at a position indicated by a virtual line L <b> 3 between the lower node 7 and the support member 12. This eliminates the need to remove the high-strength bolts 10; 11 and the support member 12 from the erection pieces 2; 3 during the steel frame construction, thus providing an advantage that the steel frame construction is completed in a short time.

  In FIG. 2, the pillar 1 is a rectangular tube, but it may be cylindrical.

Process diagram of steel frame construction (best form). The perspective view (best form) of the column used for steel frame construction. The perspective view (best form) of an upper joint pillar, a lower joint pillar, a construction jig, a load support tool, a high strength bolt, and a support member used for steel frame construction. The perspective view of the pillar used for steel frame construction (conventional). Construction jig used for steel construction (conventional). Process diagram of steel frame construction (conventional).

Explanation of symbols

1 is a pillar, 2; 3 is an erection piece, 4; 5 is a bolt through hole, 6 is an upper joint pillar, 7 is a lower joint pillar, 8 is a construction jig, 9 is a load support, 10; 11 is high strength Bolts, 12 support members, 13 slits, 14 jig bodies, 15 to 17 jig bolts, 18; 19 arms, 20 wedges, 21 support bolts, 22 bolt insertion side support members, 23 Bolt mounting side support members, 24; 25 are bolt insertion holes, 26; 27 are bolt mounting holes, and 28; 29 are erection pieces.

Claims (2)

An annular jig body surrounding the slit, and a plurality of bolts individually provided on the side wall portion and the end wall portion of the jig body, and when the heads of the respective bolts are rotated separately A construction jig configured such that the tip of each bolt protrudes separately from the jig body toward the slit or is drawn separately from the slit toward the jig body;
Erection pieces provided on the outer surfaces of the legs and heads of the upper and lower joint pillars;
A bolt insertion side support member and a bolt attachment side support member formed of an iron plate disposed so as to sandwich the erection piece in the leg portion of the upper node column and the erection piece in the head portion of the lower node column;
A bolt insertion hole provided in the bolt insertion side support member, and a high strength bolt fastened to a bolt attachment hole provided in the bolt attachment side support member via a bolt through hole provided in the erection piece,
Already installed and installed so that the jig body of the construction jig is fitted into the erection piece at the leg of the upper joint column and the erection piece at the head of the lower joint column that has already been installed and rebuilt. after Tateiri on sections columns with Tateiri jig for re terminated under clause pillar ends, Tateiri fix the legs of the upper section column with respect to the head of the lower section column by the operation of the bolt of erection jig was carried out, then, the bolt insertion-side support member and the bolt mounting side support member so as to sandwich the erection piece of the erection piece and the head of the lower section column in the leg of the upper section column is arranged, bolts high strength bolt by combining the erection piece of the head of the erection piece and the lower section column in the leg of the upper section column and fastened to the bolt mounting support member through the insertion-side support member and the erection pieces, then Ken Characterized in that the jig after out of the erection piece of the head of the erection piece and the lower section Column in the leg of the upper section column was joined to the head of the leg portions of the upper section column and the lower section pillars by welding Steel frame construction. After joining the legs of the upper joint and the head of the lower joint by welding, the erection piece was cut at a position between the upper joint and the support member or between the lower joint and the support member . The steel frame erection method according to claim 1 .

Images