JP2010180601A - Ancillary structure and unit building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ancillary structure which is incidentally connected to a building unit constituting a unit building, which expands an internal space of the building unit, and which changes an appearance of the unit building. <P>SOLUTION: The small-sized ancillary unit 10, which is connected to one elevation surface of the rectangular parallelepiped-shaped building unit constituting the unit building and which expands the internal space of the building unit, is constituted in a rectangular parallelepiped shape by including: four column materials 11; four lower beams 12, 12, 13 and 13 for horizontally connecting lower ends of the column materials together; and four upper beams 14, 14, 15 and 15 for horizontally connecting upper ends of the column materials together. The ancillary unit is connected and fixed to the two column materials 2 and 2 which constitute the one elevation surface of the building unit. The two opposed elevation surfaces of the rectangular parallelepiped-shaped are rigidly-joined surfaces 16 and 16 to which the two column materials 2 and 2, and the upper and lower beams 14 and 12 are rigidly joined; and the two column materials, and the upper and lower beams are connected to the two other opposed elevation surfaces via joint member by means of a bolt and a nut. Preferably, the four column materials are channel steel or C-shaped steel. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a small incidental structure connected to a building unit constituting a unit building, and more particularly to an incidental structure capable of expanding an internal space of a unit building by being connected.

  Conventionally, in this type of unit building, there is an overhang unit that is joined to the side part of the lower floor unit installed on the foundation or joined to the side part of the upper floor unit mounted on the upper part of the lower floor unit. The overhang unit is composed of a frame structure in which columns, floor beams and ceiling beams are joined. And this overhang unit is joined to the side part of the lower floor unit installed on the foundation, and the unit building is constituted (for example, refer to patent documents 1).

JP-A-4-360933

  The overhang unit used in the unit building constructed in this way is composed of a frame structure in which columns, floor beams and ceiling beams are joined as described above. Since it is configured in a rectangular parallelepiped shape, there is a problem that conveyance to the construction site becomes complicated. In addition, the overhang unit joins the pillars, floor beams, and ceiling beams, which are structural materials, by welding, etc., and requires the same manufacturing process as the standard building unit, which increases costs. At the same time, the same transportation method as the building unit is required for transportation.

  The present invention has been made in view of such problems. The object of the present invention is to connect and connect to a building unit to expand the indoor space, simplify the configuration, reduce the weight, and reduce the cost. It is to provide an incidental structure that can be reduced. In addition, it is possible to provide ancillary structures that can be transported separately and assembled at the construction site to reduce transportation costs, and by connecting the incidental structures, the appearance can be changed to enable a heavy appearance. To provide a unit building.

  In order to achieve the above object, the incidental structure according to the present invention is a small incidental structure that is connected to one elevation surface of a rectangular parallelepiped building unit constituting the unit building and expands the internal space of the building unit. The auxiliary structure includes four column members, four lower beams that connect the lower ends of the column members in the horizontal direction, and four links that connect the upper ends of the column members in the horizontal direction. It is comprised in the shape of a rectangular parallelepiped from the upper beam, and is connected and fixed to the two column members constituting the one elevation surface of the building unit.

  The incidental structure of the present invention configured as described above can be expanded to the internal space of the basic building unit by being connected to one elevation surface of the rectangular parallelepiped building unit constituting the unit building. Moreover, the internal space of a building unit can be easily expanded only by connecting and fixing two pillar materials of an incidental structure to two pillar materials of a building unit. Furthermore, by connecting an incidental structure to the unit building, the appearance of the unit building can be changed, and a heavy and uneven appearance can be obtained.

  Further, as a preferred specific aspect of the incidental structure according to the present invention, the incidental structure has a rigid structure in which two opposed vertical surfaces of a rectangular parallelepiped are rigidly joined with two column members and an upper beam and a lower beam. The other two upstanding surfaces which are joint surfaces are characterized in that two column members, an upper beam, and a lower beam are formed by connecting via a joint member with a fixture such as a bolt and nut. According to this configuration, the incidental structure is formed in a rectangular parallelepiped shape by connecting two beams facing each other to a rigid body surface by rigid joining, and connecting four beam members to the rigid body surface with a fixing device such as a bolt and nut. Therefore, manufacture becomes easy with a simple configuration. In addition, the weight of the incidental structure can be reduced, cost reduction can be achieved, and transportation can be easily performed.

  In the incidental structure according to the present invention, the four column members are made of channel steel or C-shaped steel having a substantially U-shaped cross section, and the joint member has an opening of the channel steel or C-shaped steel. It is preferably fixed so as to close a part, and a fastening space for a fixture such as a bolt and nut is preferably formed on the back side of the joint member. According to this structure, the structure of an incidental structure can be simplified by using the pillar material which consists of a channel steel or C-shape steel, and a weight reduction and cost reduction can be achieved. In addition, it is possible to insert a fixture such as a bolt or a nut by putting a hand in the space on the back side of the joint member, and easily connect the column member to the upper beam and the lower beam via the joint member using these fixtures. be able to.

  Furthermore, as another preferred specific aspect of the incidental structure according to the present invention, the incidental structure is connected and fixed to two pillar members of the building unit via a guide member. . According to this configuration, when connecting the incidental structure to the building unit, the incidental structure can be positioned and fixed to the building unit via the guide member, and the connection operation of the incidental structure becomes easy. .

  Moreover, it is preferable that the incidental structure of this invention is equipped with the horizontal brace material which connects the at least upper part of the said four pillar materials. According to this configuration, the rectangular parallelepiped constituting the incidental structure is improved in strength and prevented from being deformed when the four pillar members are connected by the horizontal brace material and are attached and fixed to the building unit. .

  The unit building of the present invention is characterized in that the incidental structure is connected and fixed to the building unit. Moreover, the balcony was installed in the upper part of the said incidental structure, It is characterized by the above-mentioned. The unit building constructed in this way has multiple cuboid-shaped building units juxtaposed, and the appearance of the unit can be undulated by attaching an attached structure to the stacked rectangular parallelepiped shape. It can have a profound appearance. If a balcony is installed in the upper part of an incidental structure, a living property can be improved.

  The incidental structure of the present invention can reduce the weight with a simple configuration, and is connected and fixed to the building unit constituting the unit building, thereby reducing the internal space of the building unit with a small increase in weight. It can be expanded with increased cost. In addition, by connecting and fixing the incidental structure of the present invention to a unit building formed by juxtaposing or overlapping a plurality of building units, the appearance of the unit building can be changed, and the appearance of the uneven and heavy appearance can be increased. Unit buildings can be formed.

The perspective view of the building unit to which the incidental unit which is an incidental structure which concerns on this invention is connected and fixed. The perspective view of one Embodiment of the incidental unit connected and fixed to the building unit of FIG. 1 and 2 show a state in which the incidental unit shown in FIGS. 1 and 2 is connected and fixed to a building unit. The principal part side view which connected the incidental unit to. The principal part perspective view of the state which decomposed | disassembled the A section of FIG. The top view which follows the VV line | wire of FIG. VI-VI sectional view taken on the line of FIG. VII-VII line sectional drawing of FIG. The state which connected the incidental unit which concerns on this invention to the unit building is shown, (a) is a principal part perspective view which connected the incidental unit to the short side direction and long side direction of one building unit, (b) is two buildings The perspective view of the main part which connected one incidental unit to the short side direction of the 1st floor of the unit building which made the unit 2 layers, (c) is the point which connected one auxiliary unit to the short side direction of the 2nd floor of the unit building FIG. 4D is a perspective view of a main part in which two auxiliary units are vertically connected in the short side direction of the first floor and the second floor of the unit building, and FIG. 5E is 1 in the long side direction of the first floor of the unit building. The principal part perspective view which connected one incidental unit, (f) is the principal part perspective view which connected one incidental unit in the long side direction of the 2nd floor of a unit building. The state which connected the incidental unit which concerns on this invention to the unit building is shown, (a) is the principal part which overlapped and connected the incidental unit on the 1st and 2nd floor in the long side direction of the unit building which made two building units into two layers. A perspective view, (b) is a perspective view of a main part in which one auxiliary unit is connected in the long side direction of the first floor of a unit building, and a balcony is installed thereon, and (c) is a two-layer structure with two building units. In addition, a perspective view of the main part in which one auxiliary unit is connected in the short side direction of the first floor of the unit building in which the building units are arranged on the first floor, (d) is the first floor of the unit building having two building units in two layers. The main part perspective view which connected the incidental unit for short sides to the long side direction of a building unit, (e) is continuous in the short side direction of two building units on the first floor of the unit building which made two building units into two layers. Connect the accessory units to Partial perspective.

  Hereinafter, one embodiment of an accessory unit which is an accessory structure concerning the present invention is described in detail based on a drawing. FIG. 1 is a schematic perspective view of a building unit that connects the accessory units according to the present embodiment, FIG. 2 is a schematic perspective view of the accessory unit that is connected and fixed to the building unit of FIG. 1, and FIG. FIG. 4 is an exploded perspective view of a portion A of FIG. 2, and FIG. 5 is a plan view taken along line VV of FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 4, and FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. In FIG. 4, the configuration relating to the horizontal brace material is omitted for the sake of clarity.

  1 and 2, the building unit 1 has a box ramen structure formed by joining steel structural members into a rectangular parallelepiped shape by welding, and includes four column members 2, 2,. Long side direction lower beams (floor beams) 3, 3 connecting the lower ends of the column materials in the horizontal direction, short side direction lower beams (floor beams) 4, 4, and four column materials 2, 2, ... Are formed in a rectangular parallelepiped shape from upper beams (ceiling beams) 5 and 5 in the long side direction and upper beams (ceiling beams) 6 and 6 in the short side direction. In the building unit 1, floor joists 7, 7... Are installed between the lower beams 3 and 3 at a predetermined interval, and ceiling joists 8, 8. Each column member and each beam member are welded with reinforcing plates 9, 9... Interposed at the corners to enhance the rigidity of the building unit 1.

  In the rectangular parallelepiped of the building unit 1, the long side direction will be described as the X direction, the short side direction as the Y direction, and the height direction as the Z direction. The building unit 1 is, for example, a long side having a length of about 4 to 5 meters in the long side direction (X direction), a length of about 2 to 3 meters in the short side direction (Y direction), and the height direction. It is formed in a rectangular parallelepiped shape having a length of (Z direction) of about 2.5 to 3 meters. That is, the building unit 1 has two elevation surfaces (XZ plane) along the long side direction, two elevation surfaces (YZ plane) along the short side direction, an upper surface, and a bottom surface (XY plane). It is comprised from these six surfaces.

  The incidental unit 10 connected and fixed to the building unit 1 has a small rectangular parallelepiped shape, and is provided on one side of the building unit 1 having a rectangular parallelepiped shape having six surfaces (YZ plane). It has the same rectangular side surface as the short side surface, and the length along the long side direction of the building unit 1 is set to be short. For example, while the length of the long side direction of the building unit 1 is about 4 to 5 meters, the length of the accessory unit 10 in the X direction is set to about 1 meter or a short length of 1 meter or less. ing.

  The accessory unit 10 has a rectangular parallelepiped shape as shown in FIGS. 2 to 7, and four pillar members 11, 11... Made of channel steel or C-shaped steel whose cross-sectional shapes are substantially U-shaped. Two lower beams 12, 12 connecting the lower end of the column member in the X direction, two lower beams 13, 13 connecting in the Y direction, and two connecting the upper end of the column member in the X direction Upper beams 14 and 14 and upper beams 15 and 15 connected in the Y direction. In the present embodiment, the side unit rectangle of the building unit 1 in the YZ direction and the side unit rectangle of the auxiliary unit 10 in the YZ direction have the same shape. With this configuration, when the incidental unit 10 is connected and fixed to the building unit 1, the building unit 1 is extended in the longitudinal direction (X direction) and has a shape in which no protruding portion or stepped portion is generated.

  The four column members 11 constituting the incidental unit 10 are formed of groove-shaped steel or C-shaped steel material having a substantially U-shaped cross section. The structure is different from the formed pillar material, and the weight of the incidental unit 10 and the cost can be reduced. Since the accessory unit 10 is basically connected and fixed to one elevation surface of the adjacent building unit 1, the structure depends on the strength of the basic building unit 1, and the strength of the accessory unit 10 itself is Even if it is loose, there is no problem.

  Of the members constituting the accessory unit 10, the lower beams 12, 12 and the upper beams 14, 14 along the X direction are rigidly joined to the column members 11, 11 by welding or the like, and the side surface of the accessory unit 10 in the XZ direction. 16 and 16 are rigid joint surfaces. Of the members constituting the accessory unit 10, the lower beams 13, 13 and the upper beams 15, 15 along the Y direction are pin joint surfaces connected to the column members 11, 11,. ing. In the present embodiment, brace members 17 and 17 are fixed to the rigid joint surfaces 16 and 16 in the XZ direction and further reinforced. Further, horizontal brace members 18 and 18 connecting the four column members 11 are fixed to the upper portion of the accessory unit 10 in a cross state.

  For example, as shown in FIG. 3A, the incidental unit 10 is overlaid by being attached and fixed to the second floor building unit 1 on the upper floor of the first floor building unit 1A. It is connected and fixed to the state. In this case, you may comprise so that the auxiliary pillar H may be provided under the incidental unit 10. FIG. In FIG. 3B, the building unit 1 is installed and fixed above the foundation K, and the incidental unit 10 is connected and fixed to the building unit 1.

  Here, the detail of the incidental unit 10 is demonstrated based on FIGS. The lower beams 13 and 13 and the upper beams 15 and 15 constituting the auxiliary unit 10 are bolted to the column members 11 and 11 as described above. That is, the two reinforcing plates 20 and 20 are horizontally welded or the like so as to close the opening of the C-shaped steel at the lower end of the grooved steel or C-shaped steel having a substantially U-shaped cross section constituting the column member 11. The distance between the two reinforcing plates coincides with the height of the lower beam 13. In addition, two reinforcing plates 21 and 21 are welded horizontally by welding or the like so as to close the opening of the C-shaped steel in the same manner at the upper end of the column 11 made of C-shaped steel having a U-shaped cross section. In addition, the interval between the two reinforcing plates matches the height of the upper beam 15.

  The joint plates 22, 22,... Are vertically fixed by welding or the like so as to connect the two reinforcing plates 20, 20, 21, 21, and the outer end face of the C-shaped steel. The joint plate is fixed so as to block a part of the opening of the channel steel or C-shaped steel, and the upper and lower wide portions and the central narrow portion are connected by inclined sides, and the lower beam 13 and the upper beam are connected to the wide portions. . Are inserted through the space formed on the back side of the joint plate by the narrow portion, and the bolts are used as fixtures inside the C-shaped steel of the column member 11. And a nut can be inserted.

  The reinforcing plates 20 and 21 and the joint plate 22 fixed to the upper and lower ends of the two column members 11 and 11 facing the building unit 1 are used to connect the lower beams 13 and 13 and the upper beams 15 and 15 along the Y direction. A connecting part is configured. End plates 13a and 15a that are in contact with the joint plate 22 are fixed to the lower beams 13 and 13 and the upper beams 15 and 15 so that bolts 23 can be inserted into the through holes 24, 24. Holes 13b and 15b are formed. Thus, the upper beams 15 and 15 and the lower beams 13 and 13 are joined by the bolts 23 via the joint plates 22.

  Further, triangular reinforcing plates 25, 25,... For reinforcing ribs on the inner side of the C-shaped steel are fixed to the middle of the reinforcing plates 21, 21 at the upper part of the column member 11 by welding or the like. .. Are connected to the ribs of the column member 11 reinforced by the reinforcing plate by welding or the like, and the connecting plate is fixed to the connecting plate and an equivalent position of the column member 11 located diagonally. The horizontal brace members 18, 18 are connected to each other. The horizontal brace members 18 and 18 may be configured such that the length and tension can be adjusted by interposing a turnbuckle at an intermediate position.

  In the column members 2 and 2 of the building unit 1, two attachment holes 30 are provided in each of the upper and lower ends facing the incidental unit 10 of the column members 2 and 2 as a configuration for connecting the incidental unit 10 to the building unit 1. , 30 are formed, and nuts 32, 32 to which bolts 31, 31 for connecting and fixing the accessory unit 10 to the building unit 1 are screwed are fixed by welding or the like. A guide pin 33 is fixed via a nut or the like in the middle of the mounting hole in which the two nuts are welded. The guide pin 33 is for positioning so as to facilitate bolting when the accessory unit 10 is connected and fixed to the building unit 1, and the tip of the guide pin 33 is tapered.

  In the incidental unit 10, three through holes 27 are formed on the surfaces of the pillar members 11, 11 facing the building unit 1 corresponding to the mounting holes 30 of the building unit 1 and the guide pins 33. Bolts 31 are inserted into the upper and lower two through holes, and a guide pin 33 is inserted into the central through hole. A spacer 35 is interposed between the pillar material 2 of the building unit 1 and the pillar material 11 of the incidental unit 10. The spacer 35 is formed with a through hole into which the bolts 31 and 31 and the guide pin 33 can be inserted.

  In the incidental unit 10 formed in this way, only two surfaces (XZ plane) are rigidly joined to the building unit 1 in which the column members and the beam members are all rigidly joined. 16 is connected to each other with four beam members 13, 13, 15, and 15 by bolts 23, so that the weight of the pillars and beam members constituting the accessory unit 10 can be reduced and the cost can be reduced. can do. In addition, the accessory unit 10 is transported by being divided into two rigid joint surfaces 16 and 16 and four beam members 13, 13, 15, and 15, which are composed of the column members 11 and 11, the lower beam 12, and the upper beam 14. The construction is such that beam materials are fixed and assembled locally. In the illustrated embodiment, as the two rigidly joined surfaces of the rectangular parallelepiped constituting the accessory unit 10, two surfaces in the XZ direction are used, but two surfaces in the YZ direction are used as the rigidly joined surfaces. Of course, it is good.

  Through holes are formed in the upper and lower end surfaces of the column members 2, 2... Constituting the building unit 1, and nuts are fixed to the inner surfaces of the through holes by welding or the like. The upper through holes of the four column members of the building unit 1 are fitted with eyebolts (not shown) for lifting the building unit 1 when transporting the building unit 1 or installing it on the foundation. Further, through holes 21a are similarly formed in the reinforcing plates 20, 21 fixed to the upper and lower end surfaces of the column members 11, 11,... Constituting the auxiliary unit 10, and nuts 28 (see FIG. 5) are formed on the inner surfaces of the through holes. ) Is fixed by welding or the like. As shown in FIG. 4, the pillar material B of the balcony constructed on the auxiliary unit 10 can be connected and fixed to the upper end of the pillar material 11 as shown in FIG. 4.

  The assembly of the accessory unit 10 of the present embodiment configured as described above will be described below. As described above, the accessory unit 10 is transported by being divided into the two rigid joint surfaces 16 and 16 and the four beam members (the lower beams 13 and 13 and the upper beams 15 and 15) and assembled on site. In this assembly, the through holes 24, 24... Of the joint plates 22, 22... Fixed to the upper and lower ends of the column members 11, 11 constituting the rigid joint surface, the end plates 13a of the lower beam 13 and the upper beam 15,. The bolts 23 are inserted by aligning the through holes 13b and 15b of 15a, and the nuts are screwed and fixed. Bolts and nuts can be inserted into the column member 11 by the narrow portion of the joint plate 22. Thereby, the rigid joint surfaces 16 and 16 are joined by the four beam members, and the rectangular parallelepiped auxiliary unit 10 is completed.

  The accessory unit 10 configured in this way is small and is divided into two face members (rigid joint surfaces 16 and 16) and four beam members (lower beams 13 and 13 and upper beams 15 and 15). Therefore, it can be easily transported. Moreover, since the incidental unit 10 does not require strength, the column member 11 and the beam members 12, 13, 14, and 15 can be small and light, the weight of the incidental unit 10 can be reduced, and the cost can be reduced. Furthermore, the rigid joint surfaces 16 and 16 can be manufactured by welding, and the rigid joint surfaces can be connected by four beam members to form a rectangular parallelepiped accessory unit, which eliminates the need for large-scale manufacturing equipment such as a building unit. Thus, it can be easily manufactured.

  Next, the operation of connecting and fixing the accessory unit 10 of the present embodiment to the building unit 1 will be described below. The attachment surface of the accessory unit 10 assembled as described above is opposed to the attachment surface of the building unit 1, and the spacer 35 is sandwiched between the column member 2 and the column member 11, and both units are brought into close contact with each other. By inserting guide pins 33, 33 protruding from the upper and lower ends of the column members 2, 2 of the building unit 1 into the through holes 27, the mounting holes 30, 30 of the column members 11, 11 of the building unit 1, and the incidental unit 10 The through holes 27, 27 are in close contact so that they communicate with each other. Then, a bolt 31 is inserted from the through hole 27 side of the column member 11, and is screwed into a nut 32 fixed inside the column member 2 and tightened. The bolt 31 can be easily inserted through the space beside the joint plate 22.

  Thus, when the incidental unit 10 is connected and fixed to the building unit 1, the internal space of the building unit 1 is expanded by the amount of the incidental unit 10, and the internal space can be used effectively. For example, as shown in FIG. 8A, when the accessory unit 10 is connected and extended in the long side direction (X direction) of the building unit 1, or the accessory unit 10A is connected in the short side direction (Y direction). May be extended. The accessory unit 10A is basically the same as the accessory unit 10 except that the length of the four beam members connecting the two rigid joint surfaces 16a and 16a (YZ plane) is long. is there.

  In FIG. 8B, two building units 1 are stacked in two layers, and four unit units are combined to form a unit building H, and the incidental unit 10 is connected and fixed to the unit on the left of the first floor of the unit building H. . In this example, the incidental unit part protrudes from the shape of the rectangular parallelepiped of the unit building H to change the appearance, and this incidental part can be used as, for example, an entrance part. Moreover, it is not restricted to a front door part, For example, the interior space of a living room can be expanded and it can utilize as a storage space. In the incidental unit 10 shown in this example, it is desirable that a base portion (not shown) on which the building unit 1 is placed is also formed in the incidental unit portion, and the incidental unit has specifications without the brace materials 17 and 17. Can be used.

  In FIG. 8C, similarly, four building units 1 are combined to form a unit building H, and the incidental unit 10 is connected and fixed to the right unit on the second floor of the unit building H. Also in this example, the appearance of the unit building H can be changed, and the incidental unit 10 can be protruded from the building unit 1 on the second floor in an overhanged state so that the internal space can be expanded and used effectively. The accessory unit 10 shown in this example is mounted on the second floor portion, and the accessory unit preferably has specifications with brace members 17 and 17.

  In FIG. 8 (d), four building units 1 are combined to form a unit building H, and two incidental units 10 are stacked and connected to the left and right units on the first and second floors of this unit building H. Yes. Also in this example, the appearance of the unit building H can be changed, and the internal space of the building units 1 and 1 on the first and second floors can be expanded and used effectively. In particular, the staircase that penetrates the upper and lower floors Can be used as The accessory unit 10 shown in this example can use the specification without the brace material, but the accessory unit on the second floor may use the specification with the brace materials 17 and 17.

  In FIG.8 (e), four building units 1 are combined and the unit building H is comprised, For the long side direction connected along the long side direction (X direction) of the building unit 1 which comprises this unit building H Is attached and fixed to the first floor building unit 1. Also in this example, the appearance of the unit building H can be changed, and the internal space of the building unit 1 on the first floor can be expanded and effectively used. The accessory unit 10 </ b> A shown in this example is mounted on the first floor portion, and the accessory unit can use specifications without the brace materials 17 and 17.

  In FIG. 8F, a unit building H is formed by combining four building units 1 and is connected along the long side direction (X direction) of the building unit 1 constituting the unit building H. Is attached and fixed to the second-floor building unit 1. Also in this example, the appearance of the unit building H can be changed, and the internal space of the building unit 1 on the second floor can be expanded and used effectively. The incidental unit 10A shown in this example is mounted on the second floor, and the incidental unit preferably has specifications with brace members 17 and 17.

  In FIG. 9A, four building units 1 are combined to form a unit building H, and the long side direction connected along the long side direction (X direction) of the building unit 1 constituting the unit building H is used. The incidental unit 10A is connected and fixed to the first and second floor building units 1 and 1. In this example, the internal space of the building units on the first and second floors can be greatly expanded. Further, this extended portion can be used as a blow-through.

  In FIG.9 (b), the unit building H is comprised by combining the four building units 1, and the long side direction connected along the long side direction (X direction) of the building unit 1 which comprises this unit building H The incidental unit 10A is connected and fixed to the first-floor building unit 1, and a balcony BL is installed above the incidental unit 10A. In this example, as shown in FIG. 4, a fixing tool such as a bolt is passed through a through hole 21a formed in the upper end surface of the column member 11 of the accessory unit 10A, and screwed into an internal nut 28 to fix the balcony column B. be able to.

  In FIG. 9 (c), a unit building H is formed by combining four building units 1 up and down and arranging five building units by arranging one building unit 1 on the first floor in the X direction. The incidental unit 10 connected along the short side direction (Y direction) is connected and fixed to a portion obtained by combining four H building units and a corner portion of the first floor of one building unit. Also in this example, the incidental unit 10 can be effectively used for the entrance space or the like.

  In FIG. 9D, four building units 1 are combined to form a unit building H, and along the long side direction (X direction) of the building unit 1 constituting the unit building H, an accessory unit for a short side. 10 is connected and fixed to the building unit 1 on the first floor. In this example, a part of the internal space of the building unit 1 on the first floor can be enlarged. In addition, the appearance of the unit building H can be changed. In addition, in this example, it is preferable to install an intermediate column in the middle part of the long side direction of the building unit 1 connecting the incidental unit 10 according to the incidental unit.

  In FIG. 9 (e), four building units 1 are combined to form a unit building H, and two buildings on the first floor are formed along the short side direction (Y direction) of the building unit 1 constituting the unit building H. The accessory unit 10B is connected and fixed so as to be continuous with the units 1 and 1. This incidental unit 10B has the same configuration as the aforementioned incidental units 10 and 10A, and is configured by connecting two rigid joint surfaces with four beam members. In this example, the internal space can be expanded continuously to the two building units 1 and 1 on the first floor, and the appearance of the unit building H can be changed.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various designs can be made without departing from the spirit of the present invention described in the claims. It can be changed. For example, although the example which used four or five building units as a unit building was shown, the thing using two or three building units may be used, and many building units can be used. Of course, a plurality of incidental units may be connected and fixed to a unit building on the third floor or higher. Furthermore, although the example of channel steel or C-shaped steel has been described as the column material constituting the accessory unit, steel materials of other shapes such as H-shaped steel may be used.

  As an application example of the present invention, the appearance of a unit building constructed by assembling a building unit using this accessory unit can be changed to a heavy design, and by connecting and fixing the accessory unit, The internal space can be expanded.

  1: Building unit, 2: Column material, 3, 4: Lower beam, 5, 6: Upper beam, 10, 10A, 10B: Additional unit (accompanying structure), 11: Column material, 12, 13: Lower beam, 13a, 15a: end plate (joint member), 14, 15: upper beam, 16: rigid joint surface, 17: brace material, 18: horizontal brace material, 20, 21: reinforcing plate, 22: joint plate (joint member) , 23: bolt, 24: through hole, 25: reinforcing plate, 26: connecting plate, 30: mounting hole, 31: bolt (fixing tool), 32: nut, 33: guide pin, H: unit building, BL: balcony , B: Balcony pillar

Claims (7)

A small incidental structure connected to one elevation of a rectangular parallelepiped building unit constituting a unit building and expanding the internal space of the building unit,
The incidental structure includes four column members, four lower beams that connect the lower ends of the column members in the horizontal direction, and four upper beams that connect the upper ends of the column members in the horizontal direction. The collateral structure is configured to be connected to and fixed to the two column members constituting the one elevation surface of the building unit.   In the incidental structure, two opposing vertical surfaces of the rectangular parallelepiped are rigidly connected surfaces in which two column members, an upper beam and a lower beam are rigidly connected, and the other two opposing vertical surfaces are two columns. The incidental structure according to claim 1, wherein the material, the upper beam, and the lower beam are connected and formed through a joint member by a fixture such as a bolt and nut.   The four column members are made of channel steel or C-shaped steel having a substantially U-shaped cross section, and the joint member is fixed so as to close a part of the opening of the channel steel or C-shaped steel, The accessory structure according to claim 2, wherein a fastening space for a fixture such as a bolt and nut is formed on the back side of the joint member.   The incidental structure according to any one of claims 1 to 3, wherein the incidental structure is connected and fixed to two pillar members of the building unit via a guide member.   The said incidental structure is equipped with the horizontal brace material which connects the at least upper part of the said four pillar materials, The incidental structure in any one of Claims 1-4 characterized by the above-mentioned.   6. A unit building, wherein the incidental structure according to claim 1 is connected and fixed to the building unit.   The unit building according to claim 6, wherein a balcony is installed above the incidental structure.

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