JP3014203U - Building unit connection structure - Google Patents

Abstract

(57) [Summary] [Purpose] To increase the strength of the joints between columns and beams that form the framework of the building unit. [Structure] The guide pins 6 and 7 are erected on the pillar heads of the lower-floor building unit 1A, and the guide pins 6 and 7 are inserted into the connecting plate 8 spanning a plurality of building units 1A to form the pins 6 and
In the structure in which 7 is inserted into the hole formed in the column base of the upper floor building unit 1B, and the upper and lower building units 1A and 1B are connected by the connecting tool 11, the column head of the building unit 1A and the column of the building unit 1B The legs are box-shaped connection members 5A,
5B, which results in columns 2A, 2B and beams 3A, 4
Increase the strength of the joint with B.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure for connecting building units, which are constituent elements of a unit type building.

[0002]

[Background technology]

 A unit type building is built by combining a plurality of building units pre-produced in a factory at a construction site, and these building units are connected by construction site work. Japanese Examined Patent Publication No. 6-47840 discloses a conventional connecting structure of building units.

In this conventional technique, two guide pins are erected on a pillar head of a frame formed by columns and beams of a lower-floor building unit, and the guide pins are erected on two horizontally-adjacent lower-floor building units. These guide pins are inserted into the holes of the connecting plate passed, and the tips of the guide pins protruding upward from the holes of the connecting plate are the pillar bases of the upper-floor building unit placed on each lower-floor building unit. The beams of the upper and lower building units are connected to each other by the connecting tool. Two guide pins are inserted into the connecting plate for connecting the lower floor units that are horizontally adjacent to each other and the upper floor units, so when connecting the lower floor building units with the connecting plate, the connecting plate Does not rotate horizontally, which allows the positional relationship between the lower floor building units to be set accurately.

[0004]

[Problems to be solved by the device]

 In the above conventional technology, the beam of this building unit is directly connected to the upper end side surface of the column of the lower floor building unit, and the beam of this building unit is directly connected to the lower end side surface of the column of the upper floor building unit. Lateral loads such as seismic force and wind pressure acting on the unit type building act on the beams of each building unit, and these lateral loads are transmitted to the columns. For this reason, it is required that the joints between columns and beams have a large strength that can effectively support such lateral loads. It was difficult to obtain a large strength.

An object of the present invention is to provide a structure for connecting building units in which the strength of a joint between a column and a beam is sufficiently increased.

[0006]

[Means for Solving the Problems]

 In the present invention, two guide pins are erected on a pillar head of a frame formed by including columns and beams of a lower-floor building unit, and the guide pins are bridged to a plurality of lower-floor building units horizontally adjacent to each other. These guide pins are inserted into the holes of the connecting plate, and the tips of the guide pins protruding upward from the holes are placed on at least one building unit of the lower floor building units. In the connection structure of building units that are inserted into the holes formed in the column base of the story building unit and these building units on the upper and lower floors are connected by connecting tools, the pillar head of the lower floor building unit is connected to this lower floor building unit. Is formed by a box-shaped joint member that joins the pillar and beam of the above, and the two guide pins are erected on the upper surface of this joint member, and the pillar leg of the upper-floor building unit is connected to the upper-floor building unit. Box-shaped joint member for joining columns and beams Formed, it is characterized in that the insertion of the previous end of the guide pins on the bottom surface in a hole formed in the Joint member.

In the above, the connection member of the upper and lower floor building units may be made of, for example, a casting, but it is preferable that a plurality of plate-shaped members are combined in a box shape and welded.

As described above, when the connecting member is formed by combining a plurality of plate-shaped members, a side-U-shaped body member having upper and lower surface portions is provided in these plate-shaped members. The beams of the upper and lower floor building units are channel materials having upper and lower flanges, and the upper and lower surfaces of these beams are joined to the upper and lower flanges to connect the beams to the joint member.

A side surface member is joined to an opening end portion of the main body member opposite to the connection side end portion with the beam. A reinforcing plate having a large thickness is fixed to the inner surface of at least one of the upper and lower surfaces of the main body member.

Further, a planar L-shaped internal member is arranged inside the main body member with its corners facing outward, and the internal member is fixed to the main body member. Further, a rib member is vertically arranged inside the main body member, and the rib member is joined to at least one of the upper and lower surfaces of the main body member and the outer surface of the inner member.

The connecting tool for connecting the upper and lower building units may connect the beams of these building units, but is preferably the one that connects the connecting members of the upper and lower building units. .

[0012] As described above, when the connecting tool connects the connecting members of the upper and lower building units, the connecting tool is reinforced by reinforcing plates and rib members on both connecting members. It is preferable to connect the reinforced portions to each other.

Further, it is preferable that the connecting tool is inserted into the connecting plate that is bridged over the plurality of lower floor building units. When the connecting tool is inserted into the connecting plate in this manner, the two guide pins inserted into the connecting plate and the connecting tool are arranged obliquely with respect to one side of the connecting plate having a rectangular shape in a plane. To do.

Further, the two guide pins may have the same height dimension, but it is preferable that these height dimensions are different.

Further, a protrusion member that comes into contact with the inner surface of the hollow pillar in the lower-floor building unit is provided on the lower surface of the lower-floor building unit, so that the upper member of the upper-floor building unit has an upper surface. It is desirable to provide a projecting member that comes into contact with the inner surface of the hollow column in this building unit.

[0016]

[Action]

 In the present invention, the columns and beams of each building unit on the upper and lower floors are connected by a joint member, and since this joint member is box-shaped, lateral loads such as seismic force and wind pressure acting on the beams can be effectively used. It has a large strength that can be supported, and the building unit will have sufficient strength against lateral loads. Also, two guide pins are erected on the upper surface of the box-shaped joint member of the lower-floor building unit, and these guide pins are inserted into the connecting plate that connects adjacent building units in the horizontal direction and the tip of the connecting plate is also inserted. Is inserted into the hole formed in the lower surface of the box-shaped joint member of the upper-floor building unit, so the joint member with high strength connects the building units adjacent to each other in the horizontal direction and vertically. The positioning of the building units that are lined up can be done with great strength.

Further, since the connection member is a part manufactured separately from the pillar and the beam, the manufacturing thereof can be facilitated, the dimensional accuracy can be made accurate, and the required strength can be ensured. It can be something.

When the joint member is formed of a combination of a plurality of plate-shaped members, it is necessary to provide the joint member with, for example, the work of attaching the fixing member of the guide pin and the work of forming the holes in each component. It can be done in stages, and the work can be facilitated.

Further, among these plate-shaped members, a side-faced U-shaped main body member having upper and lower surface portions is provided, and the beam is used as a channel material having upper and lower flanges. In the case of joining, lateral load such as seismic force acting on the beam is surely transmitted to the main body member of the connection member, and the upper and lower surfaces of this main body member have the function of the diaphragm that receives the load. Therefore, the load can be reliably supported.

Further, when the body member is provided with the above-mentioned side member, the reinforcing plate, and further the inner member and the rib member to form the joint member, the strength of the joint member is reinforced by these, It has great strength.

When the connecting member connects the connecting members of the upper and lower building units as described above, since this connecting member is box-shaped and has a large strength, the connecting members of the upper and lower building units are connected. Strength can be increased. In addition, since the connection members are placed in the corners of the living room space, etc. inside the building unit, the work of connecting the building units on the upper and lower floors can be performed from the small opening in this corner. Therefore, it is possible to simplify post-processing after connecting work.

Further, when the connecting member is provided with a reinforcing portion and the connecting members are connected to each other at the reinforcing portion by the connecting member, the connecting strength of the upper and lower floor building units by the connecting member can be further increased.

Further, when the connecting tool is inserted into the connecting plate connecting the building units on the same floor, the connecting plate can be connected to the building units on the lower floor and the upper floor with this connecting tool in addition to the two guide pins. Since it is fixed horizontally, the connection strength between the building units on the same floor by the connection plate can be further increased.

Further, when the two guide pins inserted into the connecting plate and the connecting tool are arranged obliquely with respect to one side of the planar rectangular connecting plate, the distance between the guide pin and the connecting tool becomes large, The connecting plate can be used with a large strength secured.

Further, when the height dimensions of the two guide pins are different, when the upper floor building unit is placed on the lower floor building unit, the two guide pins are attached to the lower surface of the connecting member of the upper floor building unit. Since it is not necessary to insert them into the two holes provided at the same time, the work can be simplified.

Furthermore, when projecting members that come into contact with the inner surfaces of the hollow pillars of these building units are provided on the lower and upper surfaces of the connecting members of the lower floor and upper floor building units, the connecting members are provided with pillars. When the column is abutted against the connection member for welding, the protrusion member can be used as a guide to perform the abutting work, and the column can be prevented from laterally slipping with respect to the connection member. .

[0027]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a skeleton of a building unit 1. This skeleton includes four columns 2 erected at four corners, and four upper beams 3, which are bridged between upper and lower ends of the column 2, The lower beam 4 and the lower beam 4 are formed into a rigid frame structure, and the columns 2, the upper beams 3, and the lower beams 4 are joined by the connection members 5 forming the column heads and column legs. There is.

FIG. 2 shows a structure of a connecting portion between two lower-floor building units 1A and two upper-floor building units 1B. The joint member 5A provided on the pillar head of the pillar 2A of the lower floor building unit 1A and the joint member 5B provided on the pillar leg of the pillar 2B of the upper floor building unit 1B are box-shaped. On the upper surface of the connecting member 5A, two large and small guide pins 6 and 7 having different heights and thicknesses are provided upright. A connecting plate 8 is bridged between the stigmas of the two lower floor building units 1A, and holes 9 and 10 for inserting the guide pins 6 and 7 are formed in the connecting plate 8.

After inserting the connecting plates 8 onto the two lower floor building units 1A while inserting the guide pins 6 and 7 into the holes 9 and 10, the upper floor building unit 1B is placed on the lower floor building unit 1A. Mounted with a crane, and the tips of the guide pins 6, 7 projecting upward from the connecting plate 8 into the holes (not shown in FIG. 2) formed in the lower surface of the connecting member 5B of the upper floor building unit 1B. insert. This operation is performed for each of the two upper floor building units 1B. After that, the bolt 11 which is a connector is inserted into the hole 12 of the joint member 5B, the hole 13 of the joint plate 8 and the hole 12 of the joint member 5A, and the bolt 11 protruding from the hole 12 of the joint member 5A is inserted. Tighten the nut 14 by screwing it into the tip.

As a result, the two lower-floor building units 1A and the upper-floor building units 1B that are horizontally adjacent to each other are connected to the connecting plate 8 via the guide pins 6 and 7 and the bolts 11. . The upper-floor building unit 1B is positioned with respect to the lower-floor building unit 1A by guide pins 6 and 7, and is connected by bolts 11 and nuts 14. Since there are two guide pins 6 and 7 inserted into the connecting plate 8, the connecting plate 8 cannot rotate in the horizontal direction with respect to one lower floor building unit 1A. The units 1A are connected to each other while being positioned by the connecting plate 8. The horizontal rotation of the connecting plate 8 is prevented by the smaller guide pin 7 of the guide pins 6, 7, and the larger guide pin 6 is used to move the lower one of the upper floors or the upper floor of the building unit 1A, 1B to the lower floor of the other. It is for allowing lateral load to be transmitted to the floor or upper floor building units 1A and 1B through the connecting plate 8.

FIG. 3 shows the entire connecting member 5. 4 to 8 are views showing the manufacturing process of the connection member 5 in the order thereof. Note that the upper and lower sides of FIG. 3 and FIGS. 4 to 8 are reversed. The connecting member 5 is a combination of a plate member shown in FIGS. 4 to 8, a body member 15, a side member 16, a reinforcing plate 17, an internal member 18, and a rib member 19 in a box shape. It is manufactured by welding and joining.

As shown in FIG. 4, the main body member 15 has a side surface U shape having an upper surface portion 15A, a lower surface portion 15B, and a side surface portion 15C, and has end portions 20, 21 which are in a mutually perpendicular position relationship. As shown in FIG. 2, two right-angled upper beams 3 or lower beams 4 are connected. Of the two ends 20, 21, the side member 16 shown in FIG. 5 is joined to the opening end on the side opposite to the end 20. A reinforcing plate 17 is fixed to the inner surface of the lower surface portion 15B of the main body member 15 as shown in FIG. 6, and the reinforcing plate 17 is made of a material having a larger thickness than the main body member 15 and the side surface member 16. Thereafter, as shown in FIG. 7, a planar L-shaped internal member 18 is inserted into the main body member 15, and this insertion makes the corner 18A of the internal member 18 face outward, that is, the corner 18A. Is performed on the opposite side of the corner 22 formed by the main body member 15 and the side member 16, and the inner member 18 is joined to the inner surface of the upper surface portion 15A of the main body member 15 and the reinforcing plate 17.

In this way, when the planar L-shaped internal member 18 is arranged inside the main body member 15, a rectangular internal space is defined by the internal member 18 inside the main body member 15. When the columns 2A and 2B of the building units 1A and 1B on the lower floor or the upper floor are connected to the connection member 5, the internal member 18 is positioned on the extension of the columns 2A and 2B.

As shown in FIG. 8, a rib member 19 is vertically arranged inside the main body member 15, and the rib member 19 is joined to the outer surface of the inner member 18 and also to the reinforcing plate 17. The rib member 19 is fixed to the lower surface portion 15B of the main body member 15 via the reinforcing plate 17.

In the above, as shown in FIG. 4, holes 23 to 25 are formed in the lower surface portion 15B of the main body member 15, and as shown in FIG. 6, the reinforcing plate 17 corresponds to these holes. Holes 26 to 28 are formed at the positions. The holes 23 and 26 form the hole 29 of the partition member 5 shown in FIG. 3, the holes 24 and 27 form the hole 30, and the holes 25 and 28 form the hole 12. When the connection member 5 is used as the connection member 5A for the pillar head of the lower-floor building unit 1A, the nut 31 shown in FIG. 3 is provided inside the connection member 5A that coincides with the positions of the holes 29 and 30. , 32 are attached by welding, and the screw portions 6A, 7A provided at the lower ends of the guide pins 6, 7 are inserted through the holes 29, 30 and screwed into the nuts 31, 32. There is. When the connecting member 5 is used as the connecting member 5B for the column base of the upper floor building unit 1B, the holes 29, 30 are inserted into the tips of the guide pins 6, 7 in the lower floor building unit 1A. Used as a hole.

As shown in FIG. 9, when the pillar 2A is joined to the lower surface 33 of the connector member 5A of the lower floor building unit 1A (the outer surface of the upper surface portion 15A of the main body member 15), the protruding member 34 is previously attached to the lower surface 33. It is attached by welding, the tip of the hollow pillar 2A is abutted against the lower surface 33 using the protruding member 34 as a guide, and the pillar 2A and the joint member 5A are connected while the protruding member 34 is in contact with the inner surface of the pillar 2A. Weld. Also, when the pillar 2B is joined to the upper surface 35 (the outer surface of the upper surface 15A of the main body member 15) of the connection member 5B of the upper floor building unit 1B, as in the case of the lower floor building unit 1A, the hollow pillar The upper surface 35 is previously provided with a protruding member 34 that comes into contact with the inner surface of 2B.

As shown in FIG. 9, the upper beam 3 A of the lower floor building unit 1 A and the lower beam 4 B of the upper floor building unit 1 B include upper flanges 36 and 39, lower flanges 37 and 40, and webs. 38, 41, and when these are connected to the connecting members 5A, 5B, the upper and lower flanges 36, 39, 37, 40 form the upper and lower parts of the main body member 15 of the connecting members 5A, 5B. It is connected to the surface portions 15A and 15B. This connection method is the same for the two end portions 20 and 21 of the joint member 5 shown in FIG. 3, and in addition to this, the webs 38 and 41 are connected to the side surface portion 15C of the main body member 15 at the end portion 20. At the end 21, the webs 38, 41 are connected to the side member 16 shown in FIGS.

After the pillar 2 and the upper beam 3 and the lower beam 4 are connected to each other through the connecting member 5 as described above to form the frame of the building unit 1, the wall material is used in the factory at this frame. , Floor materials, etc. are installed, and equipment materials such as bath units and kitchen units are installed inside the building unit 1. The required number of building units 1 to build one building is transported to the construction site, and after a plurality of lower-floor building units 1A of these are placed in predetermined positions, each lower-floor building unit 1A The guide pins 6 and 7 are erected by screwing the threaded portions 6A and 7A of the guide pins 6 and 7 onto the nuts 31 and 32, as described above, on the connection member 5A of the column head. After that, as described in FIG. 2, the connecting plate 8 is laid over the plurality of lower-floor building units 1A, the upper-floor building unit 1B is placed on the connecting plate 8, and the bolts 11 and nuts 14 serving as connecting tools. Perform connection work by.

According to the present embodiment described above, the pillar 2 and the upper beam 3 and the lower beam 4 in each building unit 1 are not directly joined, and these are connected via the box-shaped connecting member 5. Since they are joined together, the strength of the joint member can be used to increase the strength of the joint between the column 2 and the upper beam 3 and the lower beam 4, which in turn acts on the upper beam 3 and the lower beam 4. As a result, lateral loads such as seismic force and wind pressure transmitted between building units on the same floor can be reliably supported. Further, since the building units of the same floor, which are connected to each other by the connecting plate 8, are connected at this box-shaped joint member 5, they are connected with a large joint strength, and the guide pins 6 and 7 stand on the joint member 5. Since it is installed, the positioning arrangement of the upper and lower floor building units positioned by the guide pins 6 and 7 can be performed with great strength. Further, since the joint member 5 is manufactured separately from the pillar 2, the upper beam 3, and the lower beam 4, the joint member 5 can be manufactured while surely ensuring the required dimensional accuracy and strength. become.

Further, since the connecting member 5 is manufactured by combining a plurality of plate-shaped members such as the main body member 15, the side surface member 16 and the reinforcing plate 17, it is necessary to insert the guide pins 6 and 7. The work of forming the holes 23 to 25 and 26 to 28 and the work of fixing the nuts 31 and 32 for mounting the guide pins 6 and 7 can be performed at each component stage. Ease can be achieved.

Further, the main body member 15 of the connecting member 5 has a U-shape having an upper surface portion 15A and a lower surface portion 15B, and the upper beam 3 and the lower beam 4 joined to the connecting member 5 are This is a channel material having upper flanges 36, 39 and lower flanges 37, 40, and since the upper and lower surface portions 15A, 15B and the upper and lower flange portions 36, 39, 37, 40 are joined, the upper and lower surface portions 15A, 15B. Has the same function as the diaphragm that effectively supports the lateral load transmitted from the upper beam 3 and the lower beam 4. Therefore, the lateral load can be reliably supported.

Further, since the side surface member 16 is joined to the opening end of the main body member 15, the strength against the vertical load of the joint member 5 becomes large, and the main body member 15 has a thick plate-shaped reinforcing plate. 17 is provided, and a planar L-shaped internal member 18 is incorporated inside the main body member 15, the strength of the joint member 5 is further increased, and the joint member 5 is Since the rib member 19 is reinforced by the rib member 19, the joint member 5 has a sufficiently large strength.

Further, according to the present embodiment, the bolt 11 which is the connecting tool for connecting the upper and lower building units 1A and 1B is inserted into the holes 12 formed in the connecting members 5A and 5B of these building units, Since the bolt 11 connects the connecting members 5A and 5B together with the nut 14, the connection between the upper and lower building units 1A and 1B is made by utilizing the great strength of the connecting members 5A and 5B formed in a box shape. It is possible to increase the connection strength between the upper and lower building units.

Further, the connection members 5A and 5B are arranged at the corners of the building units 1A and 1B, and since this arrangement position is a corner of the living room space or the like formed in the building unit, the bolts 11, The work of connecting the building units on the upper and lower floors with the nut 14 can be performed by providing a small work opening at this corner, and the work opening need only have a small area, so the work of closing the opening after the work is simple. Can be done.

Furthermore, in the present embodiment, the connection between the connecting members 5A and 5B by the bolts 11 and the nuts 14 is performed at the reinforced portions by the reinforcing plates 17 provided on these connecting members 5A and 5B. Therefore, the connection strength can be further increased.

Since the bolts 11 are inserted through the connecting plates 8 connecting the lower-floor building units 1A and the upper-floor building units 1B via the guide pins 6, 7, the guide pins 6, 7 In addition, the connecting plate 8 is also horizontally fixed to the building units 1A and 1B also by the bolts 11. Therefore, by the connecting plate 8 between the lower floor building units 1A and the upper floor building units 1B. The horizontal connection strength can be increased.

Further, in this embodiment, as is apparent from FIG. 2, the guide pins 6 and 7 and the bolts 11 which are inserted into the connecting plate 8 are oblique with respect to one side of the connecting plate 8 which is a square quadrangle. Since the two guide pins 6 and 7 and the bolt 11 are arranged in the direction of, the connecting plate 8 can be used in a state in which a large strength against a horizontal load is ensured and the connecting plate 8 is connected. The plate 8 emits sufficient strength against a horizontal load.

Further, since the height dimensions of the two guide pins 6 and 7 are different, when the upper floor building unit 1B is placed on the lower floor building unit 1A, the tips of these guide pins 6 and 7 are placed. Need not be inserted into the two holes formed in the upper-floor building unit 1B at the same time and can be inserted at different times, so this insertion operation can be performed easily.

In addition to the above, in the present embodiment, the lower surface 33 of the connecting member 5A and the upper surface 35 of the connecting member 5B are provided with the protruding members 34 that are in contact with the inner surfaces of the hollow columns 2A and 2B. Therefore, the projecting member 34 can be used as a guide when the ends of the columns 2A, 2B are abutted against the lower surface 33 and the upper surface 35, and the projecting member 34 is used for welding the columns 2A, 2B to the joint members 5A, 5B. It also functions as a lateral deviation prevention member that prevents lateral deviation between the joint members 5A, 5B and the columns 2A, 2B. Also, the joint members 5A, 5B and the pillars 2A, 2B are welded after welding. It also serves as a member for securely fixing in the horizontal direction.

In the embodiment described above, the connecting tools for connecting the upper and lower building units 1A and 1B were the bolts 11 and the nuts 14, but these may be, for example, locking pins.

[0051]

[Effect of device]

 According to the present invention, the columns and beams of the upper and lower floor building units are not directly joined but are joined through a box-shaped joint member, so that the strength of this joint can be increased, and thus the building can be strengthened. It will exhibit sufficient strength against the load acting on the unit.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing a framework of a building unit.

FIG. 2 is an exploded perspective view showing a lower-floor building unit and an upper-floor building unit before connection.

FIG. 3 is a perspective view showing an entire connection member.

FIG. 4 is a diagram showing a first manufacturing process of a connection member.

FIG. 5 is a diagram showing the next manufacturing step of FIG. 4;

FIG. 6 is a diagram showing the next manufacturing step of FIG. 5;

FIG. 7 is a diagram showing the next manufacturing step of FIG. 6;

FIG. 8 is a diagram showing the next manufacturing step of FIG. 7;

FIG. 9 is a cross-sectional view showing the building units of the upper and lower floors after being connected.

[Explanation of symbols]

 1,1A, 1B Building unit 2,2A, 2B Column 3,3A Upper beam 4,4B Lower beam 5,5A, 5B Connection member 6,7 Guide pin 8 Connecting plate 11 Bolt which is a connecting member 15 Body member 15A Upper surface Part 15B Lower surface part 16 Side member 17 Reinforcement plate 18 Internal member 19 Rib member 34 Projection member 36,39 Upper flange 37,40 Lower flange

Claims (13)

[Scope of utility model registration request] 1. Two guide pins are erected on a pillar head of a frame formed by including columns and beams of a lower-floor building unit and bridged over a plurality of lower-floor building units horizontally adjacent to each other. The guide pin is inserted into the hole of the connecting plate, and the tip of the guide pin protruding upward from the hole is placed on at least one building unit of the plurality of lower floor building units. In the connection structure of the building units, which are inserted into the holes formed in the column bases of the floor building units, and these upper and lower floor building units are connected by a connecting tool,
The pillar head of the lower-floor building unit is formed of a box-shaped joint member that joins the pillar and the beam of the lower-floor building unit, and the two guide pins are erected on the upper surface of the joint member. The pillar leg portion of the upper-floor building unit is formed of a box-shaped joint member that joins the pillar and beam of the upper-floor building unit, and the tip of the guide pin is provided in a hole formed in the lower surface of the joint member. A structure for connecting building units, in which is inserted. 2. The building unit connection structure according to claim 1, wherein the joint member of the upper and lower building units is formed by combining and welding a plurality of plate-shaped members. Building unit connection structure. 3. The building unit connection structure according to claim 2, wherein a side-U-shaped main body member having upper and lower surface portions is provided among the plurality of plate-shaped members, and The beam is a channel material having upper and lower flanges, and the upper and lower surfaces of the beam are joined to the upper and lower flanges to connect the beam to the joint member. 4. The connection structure for a building unit according to claim 3, wherein a side member is joined to an opening end of the main body member opposite to an end on a side of connection with the beam. The connecting structure of the building units. 5. The building unit connection structure according to claim 3 or 4, wherein a reinforcing plate is fixed to an inner surface of at least one of the upper and lower surfaces of the main body member. Connection structure. 6. The building unit connection structure according to any one of claims 3 to 5, wherein:
A planar L-shaped internal member is arranged with its corners facing outward,
A structure for connecting building units, wherein the internal member is fixed to the main body member. 7. The connection structure for building units according to claim 6, wherein a rib member is vertically arranged inside the main body member, and the rib member is at least one of upper and lower surfaces of the main body member. A connecting structure for a building unit, characterized in that it is joined to one side and an outer surface of the inner member. 8. The building unit connecting structure according to claim 1, wherein the connecting tool connects the connecting members of the upper and lower floor building units. Unit connection structure. 9. The building unit connecting structure according to claim 8, wherein the connecting tool connects reinforcing portions provided on both of the joint members. Connection structure. 10. The connection structure for a building unit according to claim 8 or 9, wherein the connector is inserted through the connection plate. 11. The building unit connection structure according to claim 10, wherein the two guide pins inserted into the connection plate and the connection tool are oblique with respect to one side of the connection plate having a rectangular shape in a plane. The connection structure of building units, which is characterized by being lined up. 12. The connection structure for a building unit according to claim 1, wherein the two guide pins have different height dimensions. 13. The connection structure of building units according to claim 1, wherein an inner surface of the hollow pillar in the lower building unit is provided on a lower surface of the joint member of the lower building unit. A protrusion member that comes into contact with is provided, and on the upper surface of the connection member of the upper floor building unit,
A connecting structure of building units, wherein a projecting member that comes into contact with an inner surface of the hollow pillar in the upper floor building unit is provided.