JP2013167131A - Column material connection method, building unit, column material connection structure, and joint pin setting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a column material connection structure in which it is possible to communicate with a connection part from both above and below even after a column material is installed on a lower column material.SOLUTION: The column material connection structure vertically connects columns 2A, 2B of a lower floor unit 1A and an upper floor unit 1B each of which has a hollow column material. A cover part 31a for covering an upper end provided with a through-hole 31b is mounted on the column 2A of the lower floor unit 1A, and an opening 21a communicating with the through-hole is formed in a side wall of a column capital 21. A cover part 32a for covering a lower end provided with a through-hole 32b is mounted under the column 2B of the upper floor unit 1B, and an opening 22a communicating with the through-hole is formed in a side wall of a column base 22. The column materials continuing in a vertical direction of the lower unit and the upper unit are connected to each other by a bolt 61 inserted to through-holes which are provided in the cover parts of the upper end and the lower end respectively.

Description

  The present invention relates to a column material coupling method, a building unit, a column material coupling structure, and a joint tweezers, which are suitable for coupling hollow column materials arranged vertically.

  There is known a unit building constructed by connecting a plurality of building units manufactured in a factory in a horizontal direction and a vertical direction. And the connection method and connection structure which can join easily the column materials of the building unit arrange | positioned up and down are developed (refer patent documents 1, 2).

  The connection methods disclosed in Patent Documents 1 and 2 are provided in a building unit in which a guide pin that protrudes upward is provided at the upper end of a pillar of a building unit on the lower floor, and the guide pin is lowered from above. The connection is made by inserting it into the through hole or recess.

  On the other hand, in Patent Document 3, in order to connect the building unit to the foundation, a triangular horizontal plate provided with anchor driving holes at the inner corners between the floor beams that extend in the orthogonal direction with the pillars as apexes. A structure in which is attached is disclosed.

  Furthermore, Patent Document 4 discloses a configuration in which an opening is provided on a side wall of a column base in order to perform a connection operation between a hollow column material and a foundation.

Japanese Patent No. 4227874 JP-A-7-189343 Japanese Patent Laid-Open No. 2002-250081 JP 61-151349 A

  However, when a guide pin protruding upward is provided in advance, it must be transported and installed with care so as not to damage the guide pin. Also, if it is damaged, it takes time for replacement work.

  Moreover, it is good when it can connect on the inner corner side of a building unit like the connection with the foundation shown in patent document 3, but it is necessary to connect the pillar material of a lower floor and an upper floor directly within the projection range. Cannot be configured in this way.

  Furthermore, as shown in Patent Document 4, when an opening is provided only on the column base side, no work can be performed on the foundation side after the column material is installed on the foundation. Etc. need to be buried.

  Therefore, the present invention provides a column material connection method, a building unit, and a column material that can be connected to the connection portion from both above and below even after the upper column material is installed on the lower column material. It aims at providing a connection structure and joint tweezers.

  In order to achieve the above-mentioned object, the column material coupling method of the present invention is a column material coupling method in which the lower floor structure having a hollow column material and the column material of the upper floor structure are coupled vertically. A step of installing the lower floor structure in which a through hole is provided in a lid portion that closes an upper end of the pillar member and an opening communicating with the through hole is formed in a side wall of the pillar head; and a lower end of the pillar member The upper floor structure in which a through-hole is provided in the lid portion that closes the opening and the opening communicating with the through-hole is formed in the side wall of the column base, the column members are vertically arranged on the lower floor structure The lower floor structure by tightening bolts that are passed through through holes provided in the upper and lower end lids, using the openings formed in the column heads and column bases. And a step of connecting the column members of the upper structure to each other. To.

  Here, a joint pin is inserted into the through hole of the lid portion of the lower floor structure, and the upper pin is inserted into the through hole of the lid portion of the upper floor structure by inserting the joint pin protruding upward. While installing the floor structure, the bolts can be inserted into the through-holes and tightened after the joint pins are removed using the openings formed in the stigma and pedestal.

  Moreover, it is preferable to temporarily fix a portion where the lower floor structure and the upper floor structure overlap before removing the joint pin.

  Furthermore, the building unit of the present invention is a building unit in which a frame is formed by connecting a beam material to a hollow column material, and the upper end of the column material is blocked by a lid portion provided with a through hole. In addition, an opening communicated with the through hole is formed in the side wall of the stigma, and the lower end of the column member is closed by a lid portion provided with the through hole, and the opening communicated with the through hole is a column base. It is formed on the side wall.

  Further, the column member is a rectangular tube shape, and the beam member is connected in two directions that apex the column member, and the column head and the column base are formed on the inner side wall of the column member by the beam member. An opening may be formed. Furthermore, it is preferable that the through holes provided in the upper and lower lid portions of the pillar material are provided adjacent to the corner portions of the pillar material.

  Further, the beam member has a web and two flanges formed substantially orthogonally above and below the web, and the beam member web is joined to the column head and the column base of the column member. It can be set as the structure by which a web junction part and the upper side flange junction part and lower side flange junction part which join the flange of the said beam material are connected.

  Furthermore, it is preferable that the lid portion and the upper flange joint portion are integrally formed on the stigma, and the lid portion and the lower flange joint portion are integrally formed on the pillar base.

  The upper flange joint can be formed in two directions across the lid, and the lower flange joint can be formed in two directions across the lid.

  Moreover, it is preferable that a haunch is formed on each of the inner corners of the upper flange joint and the lower flange joint extending in the two directions. Furthermore, the said web junction part can be set as the structure arrange | positioned along the inner surface of the web of the said beam material.

  The column member connection structure of the present invention is a column member connection structure in which the lower floor structure having a hollow column member and the column members of the upper floor structure are vertically connected to each other, and the lower floor structure A lid portion for closing the upper end provided with a through hole is attached to the column member, and an opening communicated with the through hole is formed in a side wall of a pillar head, and the column member of the upper floor structure penetrates the column member. A lid that closes the lower end provided with a hole is attached, and an opening that communicates with the through-hole is formed in the side wall of the column base, and the column is continuous in the vertical direction of the lower floor structure and the upper floor structure The materials are connected to each other by bolts that pass through through holes provided in the upper and lower lid portions.

  Here, the column member is a rectangular cylinder, and the beam member is connected in two directions that apex the column member, and the column head and the column base are provided on the inner side wall of the column member by the beam member. The opening can be formed. Moreover, it is preferable that the through-hole provided in the cover part of the upper end of the said column material, and a lower end is provided adjacent to the corner part of the said column material.

  Further, the beam member has a web and two flanges formed substantially orthogonally above and below the web, and the beam member web is joined to the column head and the column base of the column member. It can be set as the structure by which a web junction part and the upper side flange junction part and lower side flange junction part which join the flange of the said beam material are connected.

  Furthermore, it is preferable that the lid portion and the upper flange joint portion are integrally formed on the stigma, and the lid portion and the lower flange joint portion are integrally formed on the pillar base.

  The upper flange joint can be formed in two directions across the lid, and the lower flange joint can be formed in two directions across the lid.

  Moreover, it is preferable that a haunch is formed on each of the inner corners of the upper flange joint and the lower flange joint extending in the two directions. Furthermore, the said web junction part can be set as the structure arrange | positioned along the inner surface of the web of the said beam material.

  On the other hand, the joint pin set of the present invention has a T-bar formed in a T-shape by a joint pin formed with an insertion hole penetrating in the direction perpendicular to the axis in the vicinity of the rear end, and a rod-shaped portion and arm portions projecting on both sides. The rod-shaped part of the T-bar is detachable from the insertion hole.

  Here, a linear member is attached to the end of the rod-shaped portion of the T-bar, and a mooring portion having a size that cannot pass through the insertion hole is provided at the end of the linear member. It can be.

  In the column material coupling method of the present invention configured as described above, an opening that communicates with the coupling through-holes is provided in the column heads and column bases of both the lower-floor structure and the upper-floor structure. It has been.

  For this reason, even after installing the upper floor structure on the lower floor structure, it is possible to contact the bolts and nuts that connect the column members from above and from below, so the nut is fixed in advance. There is no need to keep it.

  In addition, since it is possible to communicate with the through-hole from both above and from below, it is possible to perform the work by a procedure of positioning using a joint pin for guide and replacing with a bolt after positioning. For this reason, fasteners, such as a volt | bolt, are not damaged at the time of conveyance and installation work.

  Furthermore, if the lower floor structure and the upper floor structure are temporarily fixed when the joint pin is replaced with the bolt, the position determined by the joint pin will not be shifted, and it will be connected in an accurate positional relationship. Can do.

  Moreover, if it is a building unit in which the opening connected to the through-hole for connection is provided in both the column head and the column base of a column material, the connection method of a column material as mentioned above can be implemented.

  Furthermore, if the side wall on the inner corner side of the column member to which the beam material is connected in two directions, a large stress is unlikely to occur, and even if an opening communicating with the through hole is provided, the influence on the strength of the building unit can be suppressed. .

  Further, if the through hole is provided adjacent to the corner portion of the column member, the distance to the joint portion is shortened, so that it is difficult to be deformed even if a force is applied via a bolt. Furthermore, if the lid portion that closes the end portion of the column member is integrated with the joint portion with the beam member that extends on both sides, the number of parts and joint locations can be reduced.

  In addition, by providing a haunch on the inner corner side of the joint portion with the beam material extending in two directions, it is possible to suppress stress concentration from occurring in the corner portion. Furthermore, it is possible to easily secure the necessary fog around the through hole.

  Further, if the web joint portion for joining the column member and the beam member is disposed along the inner surface of the beam member web, it is possible to suppress the occurrence of a step on the outer surface of the beam member. Furthermore, the beam material can be arranged on the outside by the thickness of the web joint portion, and the interior space of the building unit can be expanded.

  Moreover, the same effect can be acquired if it is the connection method of the pillar material mentioned above, or the connection structure of the pillar material of the structure similar to a building unit.

  And if it is a joint pin set which has T bar which can be attached or detached to a joint pin, switching with positioning and removal by a joint pin can be performed easily.

  In addition, if a linear member having a mooring portion is attached to the end of the T bar, the joint pin and the T bar will not be separated even when the T bar is removed. And prevent loss.

It is explanatory drawing which showed the structure of the connection structure of the column material of this Embodiment. It is a perspective view explaining the structure of the building unit connected up and down. It is a disassembled perspective view explaining the structure of a pillar material. It is an expansion perspective view explaining the composition near the head of a pillar material. It is an expansion perspective view explaining the structure of the column base vicinity of a column material. (A) It is sectional drawing seen in the AA arrow direction of FIG. 5, (b) It is sectional drawing seen in the BB arrow direction of FIG. It is explanatory drawing which showed the structure of the joint tweezers. It is a figure explaining the process of installing an upper floor unit on a lower floor unit, Comprising: (a) is a longitudinal cross-sectional view, (b) is a cross-sectional view. It is a figure explaining the process of temporarily fixing a lower floor unit and an upper floor unit, (a) is a longitudinal cross-sectional view, (b) is a cross-sectional view. It is a figure explaining the process of removing a joint pin, Comprising: (a) is a longitudinal cross-sectional view, (b) is a cross-sectional view. It is a figure explaining the process connected with a volt | bolt and a nut, Comprising: (a) is a longitudinal cross-sectional view, (b) is a cross-sectional view. It is an expansion perspective view explaining the structure of the column base vicinity of the column material of an Example.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram for explaining the configuration of the column member connection structure of the present embodiment, and FIG. 2 is a perspective view for explaining the configuration of a building unit provided with the connection structure.

  First, a building unit constituting a unit building as a building will be described with reference to FIG. The unit building is constructed by connecting a plurality of building units manufactured in a factory in the horizontal direction and the vertical direction on site.

  The building unit is formed in a rectangular parallelepiped shape by four steel column members and steel beam members that connect the column heads and the column bases of the column members. Further, the building unit has a steel frame ramen structure in which the column material and the beam material are all rigidly joined by welding.

  Hereinafter, a building unit installed as a lower floor structure is referred to as a lower floor unit 1A, and a building unit installed as an upper floor structure is referred to as an upper floor unit 1B. Since the lower floor unit 1A and the upper floor unit 1B have only a difference in installation location between the first floor and the second floor, the configuration will be described by taking the upper floor unit 1B as an example.

  As shown in FIG. 5, the pillar 2B as the pillar material of the upper floor unit 1B (the pillar 2A in the lower floor unit 1A) is formed by a rectangular prismatic hollow square steel pipe. The upper floor unit 1B is formed in a rectangular shape in plan view, and pillars 2B,... Are arranged in each of the four corners.

  A ceiling beam as a beam material is bridged between the column heads 21 and 21 of the column 2B. Here, the ceiling beam on the long side (girder side) is a girder side ceiling beam 4A, and the ceiling beam on the short side is a wife side ceiling beam 4B.

  Further, a floor beam as a beam material is passed between the column bases 22 of the column 2B. Here, the long side (girder side) floor beam is referred to as a girder side floor beam 5A, and the short side floor beam is referred to as a wife side floor beam 5B.

  The girder-side ceiling beam 4A, the wife-side ceiling beam 4B, the girder-side floor beam 5A, and the wife-side floor beam 5B are formed of channel steel or channel steel with a lip. For example, as shown in FIGS. 4 and 5, it is possible to use a steel having a substantially U-shaped cross section in which the parallel upper flange 41 (51) and lower flange 42 (52) are connected by a web 43 (53). it can.

  As shown in FIG. 2, a plurality of floor beams 12,... Are passed between the beam-side floor beams 5A, 5A at intervals in the long side direction (also referred to as the beam direction). That is, the floor beam 12 is arranged substantially parallel to the short side direction (also referred to as the wife direction) in the same manner as the wife side floor beam 5B.

  The floor beam 12 is formed by a rectangular tubular steel pipe. Further, a plurality of wooden floor joists 12a,... Are passed between the wife side floor beams 5B, 5B. On the other hand, a plurality of wooden ceiling joists 11,... Facing in the short side direction are bridged between the beam-side ceiling beams 4A and 4A.

  Next, details of the configuration of the pillar 2A will be described with reference to FIG. Also here, the structure of the pillar 2A of the lower floor unit 1A and the pillar 2B of the upper floor unit 1B are the same, so the description will be made using the pillar 2A.

  First, the upper end face plate 31 is disposed on the upper end 21b of the column 2A. The upper end face plate 31 includes a lid portion 31a that closes the opening of the upper end 21b of the column 2A, and two upper flange joint portions 31c and 31c that extend in an arm shape in the extending direction of the ceiling beams (4A and 4B). It is formed into an L shape (boomerang shape) using a steel plate or the like.

  In addition, the inner angle formed by the upper flange joint portions 31c and 31c extending in two orthogonal directions is provided with a haunch 31d, which is an obtuse angle. Furthermore, a through-hole 31b is drilled in the lid portion 31a at a position where the inside and outside of the column 2A communicate.

  The through hole 31b is provided adjacent to the corner portion of the pillar 2A. Since this position is close to the welding position with the column 2A, it is difficult to be deformed even when a force is applied, and the thickness of the steel plate can be reduced as compared with the case where a hole is provided in the center of a conventional column lid.

  And as shown in FIG. 4, the side wall adjacent to the through-hole 31b of the column head 21 of the pillar 2A is cut diagonally, and the opening 21a is formed. Since this opening 21a communicates with the lower surface side of the through hole 31b, it penetrates through the opening 21a from the inner corner side (inside the lower floor unit 1A) formed by the ceiling beams (4A, 4B) extending in two directions. The hole 31b can be contacted.

  Such an upper end face plate 31 is fixed to the upper end 21b of the column 2A by welding. In addition, a rectangular steel plate is fixed to the side surface of the stigma 21 as a web joint 33A by welding. A shearing force is transmitted between the column 2A and the ceiling beam (4A, 4B) by the web joint portion 33A.

  As shown in FIG. 4, the web joint portion 33A is disposed at a position along the inner side surface of the web 43 of the ceiling beam (4A, 4B). That is, it is disposed at a position separated from the upper end face plate 31 by a distance equal to or greater than the thickness of the upper flange 41 at a position inside the corner of the pillar 2A by the thickness of the web 43. Further, the height of the web bonding portion 33 </ b> A is formed lower than the height of the web 43.

  The web joints 33A and 33A are attached so as to be substantially orthogonal to the two-way upper flange joints 31c and 31c. Then, the lower bonding plate 34 is arranged in a shape and position where the projection view substantially coincides with the upper end face plate 31.

  That is, the lower joining plate 34 is formed of a steel plate into a shape obtained by cutting off the portion of the square lid portion 31a that is substantially the same as the cross section of the column 2A from the upper end face plate 31. For this reason, the lower flange joint 34a has substantially the same shape as the upper flange joint 31c, and the haunch 34b has substantially the same shape as the haunch 31d.

  In addition, the lower joining plate 34 is fixed to the side surface of the stigma 21 by welding at a distance substantially the same as the height of the ceiling beams (4A, 4B) downward from the upper end face plate 31. Therefore, the upper surface of the upper flange 41 of the ceiling beam (4A, 4B) is in contact with the lower surface of the upper flange joint portion 31c, and the lower surface of the lower flange 42 is in contact with the upper surface of the lower flange joint portion 34a.

  Further, the inner side surface of the web 43 of the ceiling beam (4A, 4B) comes into contact with the outer side surface of the web joint portion 33A. The upper flange joint portion 31c, the lower flange joint portion 34a, and the web joint portion 33A are fixed by welding at locations that contact the ceiling beams (4A, 4B), respectively.

  That is, the ceiling beams (4A, 4B) are not directly fixed to the column 2A, but are fixed via the upper flange joint portion 31c, the lower flange joint portion 34a, and the web joint portion 33A.

  Further, the upper flange joint portion 31c and the lower flange joint portion 34a are arranged on the inner side in a plan view than the outer surface of the web 43 of the ceiling beam (4A, 4B), and from the ceiling beam (4A, 4B). Also, make sure that there are no protruding parts.

  On the other hand, a lower end face plate 32 is disposed at the lower end 22b of the column 2A. As shown in FIG. 3, the lower end face plate 32 includes a lid portion 32a that closes the opening of the lower end 22b of the column 2A, and two lower flanges that extend in an arm shape in the extending direction of the floor beams (5A, 5B). It is formed of a steel plate or the like into an L shape having joint portions 32c and 32c.

  Further, the inner angle formed by the lower flange joint portions 32c and 32c extending in two orthogonal directions is provided with a haunch 32d, which is an obtuse angle. Furthermore, a through-hole 32b is drilled in the lid portion 32a at a position where the inside and outside of the column 2A communicate. This through hole 32b is also provided adjacent to the corner portion of the pillar 2A in the same manner as the above-described through hole 31b.

  And as shown in FIG. 5, the side wall adjacent to the through-hole 32b of the column base 22 of the pillar 2A is cut off diagonally, and the opening 22a is formed. Since this opening 22a communicates with the upper surface side of the through-hole 32b, it penetrates through the opening 22a from the inner corner side (inside the lower floor unit 1A) formed by floor beams (5A, 5B) extending in two directions. The hole 32b can be contacted.

  Such a lower end face plate 32 is fixed to the lower end 22b of the column 2A by welding. In addition, a rectangular steel plate is fixed to the side surface of the column base 22 by welding as a web joint portion 33B. A shearing force is transmitted between the column 2A and the floor beams (5A, 5B) by the web joint portion 33B.

  As shown in FIG. 5, the web joint portion 33 </ b> B is disposed at a position along the inner surface of the web 53 of the floor beam (5 </ b> A, 5 </ b> B). That is, it is disposed at a position separated from the lower end face plate 32 by an amount equal to or greater than the thickness of the lower flange 52 at a position that is inward from the corner of the pillar 2A by the thickness of the web 53. Further, the height of the web bonding portion 33 </ b> B is formed lower than the height of the web 53.

  The web joints 33B and 33B are attached so as to be substantially orthogonal to the two lower flange joints 32c and 32c. Then, the upper bonding plate 35 is arranged in a shape and a position where the projection view substantially coincides with the lower end face plate 32.

  That is, the upper bonding plate 35 is formed of a steel plate into a shape obtained by cutting off the portion of the square lid portion 32a that is substantially the same as the cross section of the column 2A from the lower end surface plate 32. For this reason, the upper flange joint 35a has substantially the same shape as the lower flange joint 32c, and the haunch 35b has substantially the same shape as the haunch 32d.

  Further, the upper joint plate 35 is fixed to the side surface of the column base 22 by welding at a distance substantially the same as the height of the floor beams (5A, 5B) away from the lower end surface plate 32. Therefore, the upper surface of the upper flange 51 of the floor beam (5A, 5B) is in contact with the lower surface of the upper flange joint portion 35a, and the lower surface of the lower flange 52 is in contact with the upper surface of the lower flange joint portion 32c.

  Further, the inner surface of the web 53 of the floor beam (5A, 5B) comes into contact with the outer surface of the web joint portion 33B. The lower flange joint portion 32c, the upper flange joint portion 35a, and the web joint portion 33B are fixed by welding at locations where they contact the floor beams (5A, 5B), respectively.

  That is, the floor beam (5A, 5B) is not directly fixed to the column 2A, but is fixed via the lower flange joint portion 32c, the upper flange joint portion 35a, and the web joint portion 33B.

  Further, the lower flange joint portion 32c and the upper flange joint portion 35a are arranged on the inner side in a plan view than the outer surface of the web 53 of the floor beam (5A, 5B), and from the floor beam (5A, 5B). Also, make sure that there are no protruding parts.

  Next, a method for connecting the column members of the present embodiment will be described with reference to FIGS.

  First, building units such as the lower floor unit 1A and the upper floor unit 1B are manufactured in the factory. That is, in the stigma 21 of the pillars 2A and 2B, the opening 21a is formed by notching, the upper end face plate 31 in which the through hole 31b is drilled, the web joining portion 33A, and the joining to the stigma 21 by welding the lower joining plate 34, In addition, they are joined by welding the ceiling beams (4A, 4B).

  In addition, in the column bases 22 of the columns 2A and 2B, the openings 22a are formed by notching, and the bottom end plate 32 with the through holes 32b drilled, the web joint portion 33B, and the upper joint plate 35 are welded to the column bases 22. Joining and welding by welding the floor beams (5A, 5B) to them are performed.

  Then, the lower-floor unit 1A and the upper-floor unit 1B are transported to the site, and first, the lower-floor unit 1A is installed on the building unit that is the foundation or further lower floor. The joint tweezers 7 are attached to the capital 21 of the lower floor unit 1A as shown in FIG.

  Here, as shown in FIG. 7, the joint pin set 7 includes a joint pin 71 in which an insertion hole 71b penetrating in the direction perpendicular to the axis is formed in the vicinity of the rear end, and a T-bar 72 that is detachable from the insertion hole 71b. And is composed mainly of.

  The joint pin 71 is a wedge-shaped member having a diameter slightly smaller than the inner diameter of the through holes 31b and 32b drilled in the upper end face plate 31 and the lower end face plate 32, and has a sharp portion 71a with a sharp tip.

  On the other hand, the T bar 72 is formed in a T shape by a rod-like portion 72a having a diameter slightly smaller than the inner diameter of the insertion hole 71b and an arm portion 72b projecting from the end of the rod-like portion 72a to both sides.

  Further, a connecting chain 73 as a linear member is attached to an end portion of the rod-like portion 72a of the T bar 72 opposite to the arm portion 72b. The connecting chain 73 is passed through the insertion hole 71b, and a ring 73a as a mooring part having a size that cannot pass through the insertion hole 71b is attached to the end of the connection chain 73.

  As shown in FIGS. 8A and 8B, the joint pin 71 of such a joint tweezer 7 is inserted from the opening 21a of the stigma 21 of the lower floor unit 1A and passed through the through hole 31b of the upper end face plate 31 to be sharp. The part 71a is protruded upward.

  Further, the rod-shaped portion 72 a of the T bar 72 is inserted into the insertion hole 71 b of the joint pin 71. In this state, when the joint pin 71 is to be lowered or inclined, the joint pin 71 itself contacts the inner edge of the through hole 31b, and the T bar 72 contacts the lower edge of the opening 21a, thereby supporting the joint pin 71. Will be. For this reason, the joint pin 71 does not come off or tilt from the through hole 31b.

  Then, the upper floor unit 1B is slowly lowered while positioning so that the sharp portion 71a protruding upward is inserted into the through hole 32b of the lower end face plate 32 of the upper floor unit 1B.

  Thus, when the through-holes 31b and 32b of the lower floor unit 1A and the upper floor unit 1B are penetrated by the joint pin 71, accurate alignment is achieved.

  Therefore, as shown in FIGS. 9A and 9B, a portion where the upper end face plate 31 and the lower end face plate 32 overlap is sandwiched with a clamp 74 and temporarily fixed. Then, the T bar 72 is pulled and pulled out from the insertion hole 71 b of the joint pin 71.

  Subsequently, a bar (not shown) is inserted from the opening 22a of the upper floor unit 1B, and the sharp portion 71a is pushed down by the bar to lower the joint pin 71 as shown in FIGS. 10 (a) and 10 (b). Extract from 31b and 32b. Here, the length of the connecting chain 73 is set to be equal to or longer than the length at which the sharpened portion 71a can be extracted from the through holes 31b and 32b.

  The joint pin 71 removed from the through holes 31b and 32b is taken out from the opening 21a of the lower floor unit 1A. After removing the joint tweezers 7 in this manner, the nut 62 is inserted from the opening 21a of the lower floor unit 1A directly below the through hole 31b, and the bolt 61 is inserted from the opening 22a of the upper floor unit 1B toward the through hole 32b. .

  The bolt 61 and the nut 62 constitute the fastener 6. Then, the upper and lower columns 2A and 2B are connected to each other by tightening the nut 62 and the bolt 61 with a spanner or a wrench inserted from the openings 21a and 22a.

  The lower floor unit 1A and the upper floor unit 1B are connected by connecting the pillars 2A, 2B at all corners where the pillars 2A, 2B,. . The clamp 74 attached for temporary fixing is removed after connection.

  Next, operations of the column material coupling method, the building unit, the column material coupling structure, and the joint tweezers according to the present embodiment will be described.

  The connecting method of the pillars 2A and 2B of the present embodiment configured as described above is such that the pillar heads 21 and the pillar bases 22 of the pillars 2A and 2B of both the lower floor unit 1A and the upper floor unit 1B are connected to each other. Openings 21a and 22a communicating with the holes 31b and 32b are provided.

  Therefore, even after the upper floor unit 1B is installed on the lower floor unit 1A, the nut 62 for connecting the pillars 2A and 2B can be installed from the opening 21a to the through hole 31b, and the bolt 61 It can install with respect to the through-hole 32b from the opening 22a.

  With such a configuration, it is not necessary to fix a nut in advance under the through hole 31b of the lower floor unit 1A. Further, members around the connecting portion are not deteriorated by the heat of welding.

  Further, since it is possible to communicate with the through holes 31b and 32b from both above and below, positioning is performed using the joint pin 71 for guide, and after positioning, the joint pin 71 is removed, and the bolt 61 and the nut 62 are connected. Work can be done in the procedure of mounting and fastening.

  For this reason, since the fastener 6 does not protrude during conveyance, it is not damaged. Further, since it is not used as a positioning guide, the fastener 6 is not damaged during installation work.

  In addition, if the lower floor unit 1A and the upper floor unit 1B are temporarily fixed with the clamp 74 when moving from the joint pin 71 to the fastener 6, the position determined by the joint pin 71 will not shift. It can be fixed by the fastener 6 in an accurate positional relationship.

  Also, the lower floor unit 1A (or the upper floor unit 1B) in which the openings 21a and 22a communicated with the connecting through holes 31b and 32b are provided in both the column head 21 and the column base 22 of the column 2A (2B). For example, the column material coupling method as described above can be implemented.

  Further, if the side walls on the inner corner side of the columns 2A and 2B to which the beam-side ceiling beam 4A and the wife-side ceiling beam 4B (or the beam-side floor beam 5A and the wife-side floor beam 5B) are connected in two directions, a large stress is generated. Even if the openings 21a and 22a communicating with the through holes 31b and 32b are provided, the proof strength of the building units (1A and 1B) is not reduced.

  Moreover, if the through-hole 31b (32b) is provided adjacent to the corners of the columns 2A and 2B, the upper end surface plate 31 (or the lower end surface plate 32) and the upper end 21b (or the lower end 22b) of the columns 2A and 2B are welded. The distance from the joint due to is shortened.

  For this reason, even if a force acts on the through holes 31b and 32b via the joint pin 71 and the bolt 61, the deformation hardly occurs. Therefore, even if the thickness of the upper end face plate 31 or the lower end face plate 32 is reduced, the desired proof stress can be ensured.

  Also, the upper end face plate 31 and the lower end face plate in which the lid portions 31a and 32a for closing the end portions (21b and 22b) of the columns 2A and 2B are integrated with the upper flange joint portions 31c and 31c and the lower flange joint portions 32c and 32c. If 32 is used, the number of parts and joint locations can be reduced.

  Furthermore, by providing the hunches 31d and 32d on the inner corners of the upper flange joints 31c and 31c and the lower flange joints 32c and 32c extending in two directions, it is possible to suppress stress concentration from occurring in the corners. it can.

  Further, the distances from the through holes 31b and 32b to the edge portion are increased by the haunches 31d and 32d, and the necessary fog around the through holes 31b and 32b can be easily secured.

  Further, the web joint portions 33A and 33B for joining the beam-side ceiling beam 4A and the wife-side ceiling beam 4B (or the beam-side floor beam 5A and the wife-side floor beam 5B) and the columns 2A and 2B are formed on the inner surfaces of the webs 43 and 53. If it arrange | positions along, it will not produce a level | step difference in the outer surface of the girder side ceiling beam 4A and the wife side ceiling beam 4B (or girder side floor beam 5A and the wife side floor beam 5B), and the outside can be made flush. .

  Further, the upper flange joint portion 31c and the lower flange joint portion 34a and the lower flange joint portion 32c and the upper flange joint portion 35a are also planar from the outer surface of the ceiling beam (4A, 4B) or the floor beam (5A, 5B). The outer side can be flushed if there are no more protruding parts.

  Furthermore, the fact that the web joints 33A and 33B are arranged on the inner surface side of the webs 43 and 53 means that the ceiling beams (4A and 4B) and the floor beams (5A and 5B) are equal to the thickness of the web joints 33A and 33B. ) Can be arranged on the outside, the interior space of the building unit (1A, 1B) can be widened.

  Further, the upper end face plate 31, the web joining portion 33A, the lower joining plate 34 (or the lower end face plate 32, the web joining portion 33B, and the upper joining plate) for joining the columns 2A, 2B and the beam members (4A, 4B, 5A, 5B). If 35) is formed by separate members, each of them can be joined to an appropriate location even if the pillars 2A and 2B are deformed by welding heat or the like. For this reason, it can prevent that a clearance gap produces between beam materials (4A, 4B, 5A, 5B) after joining, a residual stress arises around a junction part, or a beam material deform | transforms.

  And if it is the joint pin set 7 which has the T-bar 72 which can be attached or detached with respect to the joint pin 71, switching with positioning and removal by the joint pin 71 can be performed easily.

  Further, if the connecting chain 73 having the ring 73a larger than the insertion hole 71b is attached to the end portion of the T bar 72, the joint pin 71 and the T bar 72 are separated even when the T bar 72 is removed. The T-bar 72 can be prevented from being dropped or lost.

  Hereinafter, a column material connection method and a connection structure using a building unit 1C having a different form from the building units (1A, 1B) described in the above embodiment will be described with reference to FIG. Note that the description of the same or equivalent parts as those described in the above embodiment will be described with the same terms and the same reference numerals.

  In the building unit 1C described in this embodiment, a column 2C as a column material and a beam material are joined via a joint piece 8 as shown in FIG. Here, although FIG. 12 demonstrates the structure with the floor beam (5A, 5B) in the column base 22 of the pillar 2C, the structure with the pillar 2C and the ceiling beam (4A, 4B) of the stigma 21 is also the same.

  The joint piece 8 is integrally formed of groove-shaped steel having a substantially U-shaped cross-sectional view in which upper and lower parallel flanges are connected by a web. The upper flange becomes the upper flange joint 81, the lower flange becomes the lower flange joint 82, and the web connecting them becomes the web joint 83.

  The joint piece 8 is a member that is slightly larger than the floor beam (5A, 5B), and is arranged so as to cover the end of the floor beam (5A, 5B) from the outside. When connecting the floor beams (5A, 5B) to the column 2C, first, the end surface of the joint piece 8 is abutted against the side surface of the column base 22 and welded.

  The ends of the floor beams (5A, 5B) are accommodated inside the joint piece 8, and the upper flange 51 and the upper flange joint 81, the lower flange 52 and the lower flange joint 82, and the web 53 and the web joint 83. Are welded at each contact point.

  On the other hand, the lower end 22b of the column 2C is closed by a lid portion 84 formed of a steel plate in a square shape. That is, the lid 84 is a separate member from the lower flange joints 82 and 82. In addition, a through hole 84a is drilled in the lid portion 84 at a position where the inside and outside of the column 2C communicate.

  The through hole 84a is provided adjacent to the corner portion of the column 2C. And as shown in FIG. 12, the side wall adjacent to the through-hole 84a of the column base 22 of the column 2C is notched diagonally, and the opening 22a is formed.

  Even when the column 2C and the floor beam (5A, 5B) are connected via the joint piece 8 as in this embodiment, the operational effects described in the above embodiment can be obtained.

  Other configurations and functions and effects are substantially the same as those in the above-described embodiment, and thus description thereof is omitted.

  Although the embodiments and examples of the present invention have been described in detail with reference to the drawings, the specific configuration is not limited to the embodiments or examples, and the gist of the present invention is not deviated. Design changes are included in the present invention.

  For example, in the above-described embodiments and examples, the case where the lower structure and the upper structure are building units (1A, 1B) having a steel frame ramen structure is described. If the pillar material is disposed, the present invention can be applied even to a frame structure in which the corner portion is not rigidly joined.

  Moreover, although the said embodiment demonstrated the building unit (1A, 1B) by which pillar 2A, ... (2B, ...) is arrange | positioned at all four corners, it is not limited to this, The present invention can also be applied to a building unit in which some columns are omitted.

  Furthermore, in the said embodiment and Example, although the case where the column 2A-2C formed by a square columnar square steel pipe was used was demonstrated, it is not limited to this, Polygonal column shape, cylindrical shape, elliptic cylinder It may be a pillar material such as a shape. Further, the beam material is not limited to the beam material formed of channel steel.

  Moreover, although the said embodiment demonstrated the case where the volt | bolt 61 was inserted from upper direction and the nut 62 was attached below, it is not limited to this, The reverse may be sufficient. Further, the nut 62 can be fixed in advance by welding.

1A Lower floor unit (lower floor structure, building unit)
1B Upper floor unit (upper floor structure, building unit)
1C Building unit 2A, 2B, 2C Column (column material)
21 stigma 21a opening 21b upper end 22 column base 22a opening 22b lower end 31 upper end face plate 31a lid part 31b through hole 31c upper flange joint part 31d haunch 32 lower end face plate 32a lid part 32b through hole 32c lower flange joint part 32d hunch 33A, 33B web Joint 4A Girder-side ceiling beam (beam material)
4B Wife side ceiling beam (beam material)
5A Girder side floor beam (beam material)
5B Wife side floor beam (beam material)
61 Bolt 7 Joint pin set 71 Joint pin 71b Insertion hole 72 T-bar 72a Bar-shaped part 72b Arm part 73 Connecting chain (wire material)
73a Ring (Mooring part)
74 Clamp (temporary fixing)
8 Joint Piece 81 Upper Flange Joint 82 Lower Flange Joint 83 Web Joint 84 Lid 84a Through Hole

Claims (21)

A column material coupling method for vertically coupling column materials of a lower floor structure and an upper floor structure having hollow pillar materials,
A step of installing the lower floor structure in which a through-hole is provided in the lid portion that closes the upper end of the pillar material, and an opening communicating with the through-hole is formed in the side wall of the pillar head;
The upper floor structure in which a through hole is provided in the lid portion that closes the lower end of the pillar material, and an opening communicating with the through hole is formed on the side wall of the column base, is formed on the lower floor structure. A process of installing the materials so as to be continuous in the vertical direction;
Columns of the lower floor structure and the upper floor structure are formed by tightening bolts that are passed through through holes provided in the upper and lower end lid portions using openings formed in the stigma and column base. And a step of connecting the columns. The upper floor structure is inserted by inserting a joint pin into the through hole of the lid portion of the lower floor structure and inserting the joint pin protruding upward into the through hole of the lid portion of the upper floor structure. As well as installing
2. The connection of column members according to claim 1, wherein the bolts are inserted into the through holes and tightened after removing the joint pins using openings formed in the column heads and column bases. Method.   3. The method for connecting pillar members according to claim 2, wherein a portion where the lower floor structure and the upper floor structure overlap is temporarily fixed before the joint pin is removed. A building unit in which a frame is formed by connecting a beam material to a hollow pillar material,
The upper end of the column member is closed by a lid portion provided with a through hole, and an opening communicating with the through hole is formed on the side wall of the column head.
A building unit characterized in that the lower end of the column member is closed by a lid portion provided with a through hole, and an opening communicating with the through hole is formed in a side wall of the column base.   The column member has a rectangular tube shape, the beam member is connected in two directions that apex the column member, and the opening of the column head and the column base is formed on the inner side wall side of the column member by the beam member. The building unit according to claim 4, wherein the building unit is formed.   6. The building unit according to claim 4, wherein the through-holes provided in the upper and lower lid portions of the column member are provided adjacent to the corner portions of the column member.   The beam member has a web and two flanges formed substantially perpendicular to the upper and lower sides of the web, respectively, and a web joint that joins the beam member web to the column head and the column base of the column member. The building unit according to any one of claims 4 to 6, characterized in that an upper flange joint and a lower flange joint for joining the flange of the beam member to each other are connected.   The lid and the upper flange joint are integrally formed on the stigma, and the lid and lower flange joint are integrally formed on the pillar. Building unit.   9. The upper flange joint portion is formed in two directions across the lid portion, and the lower flange joint portion is formed in two directions across the lid portion. Building unit.   10. The building unit according to claim 9, wherein hunches are formed on inner corners of the upper flange joint and the lower flange joint extending in the two directions, respectively.   The building unit according to any one of claims 7 to 10, wherein the web joint is disposed along an inner surface of the web of the beam material. It is a connecting structure of pillar materials that connects the pillar materials of the lower floor structure and the upper floor structure having hollow pillar materials up and down,
The column member of the lower floor structure is attached with a lid portion that closes the upper end provided with a through hole, and an opening that communicates with the through hole is formed on the side wall of the capital.
A lid for closing the lower end provided with a through hole is attached to the column member of the upper floor structure, and an opening communicating with the through hole is formed on the side wall of the column base.
Column material characterized in that column members that are continuous in the vertical direction of the lower floor structure and the upper floor structure are connected by bolts that pass through through holes provided in the upper and lower lid portions. Connection structure.   The column member has a rectangular tube shape, the beam member is connected in two directions that apex the column member, and the opening of the column head and the column base is formed on the inner side wall side of the column member by the beam member. The column member connection structure according to claim 12, which is formed.   The through-hole provided in the cover part of the upper end of the said pillar material, and a lower end is provided adjacent to the corner part of the said pillar material, The connection structure of the pillar material of Claim 12 or 13 characterized by the above-mentioned.   The beam member has a web and two flanges formed substantially perpendicular to the upper and lower sides of the web, respectively, and a web joint that joins the beam member web to the column head and the column base of the column member. The column member connection structure according to any one of claims 12 to 14, wherein a portion is connected to an upper flange joint and a lower flange joint that join the flange of the beam member.   The lid and the upper flange joint are integrally formed on the stigma, and the lid and the lower flange joint are integrally formed on the pillar. Connecting structure of pillar materials.   17. The upper flange joint portion is formed in two directions across the lid portion, and the lower flange joint portion is formed in two directions across the lid portion. Column connection structure.   18. The column member connection structure according to claim 17, wherein hunches are respectively formed on inner corners of the upper flange joint and the lower flange joint extending in the two directions.   The column member connection structure according to any one of claims 15 to 18, wherein the web joint portion is disposed along an inner surface of the web of the beam member. A joint pin formed with an insertion hole penetrating in the direction perpendicular to the axis in the vicinity of the rear end;
A T-bar formed in a T-shape by a rod-shaped portion and arm portions projecting on both sides;
The joint tweezers characterized in that the rod-shaped portion of the T-bar is detachable from the insertion hole.   A linear member is attached to an end of the rod-shaped portion of the T-bar, and an anchoring portion having a size that cannot pass through the insertion hole is provided at the end of the linear member. The joint tweezers according to claim 20.