JP7348771B2 - unit building - Google Patents

Description

This invention relates to a unit building.

A unit building is a building that can be constructed in a short period of time by transporting rectangular parallelepiped building units manufactured in advance at a factory to a construction site and assembling them at the construction site (for example, see Patent Document 1).

JP2019-65524A

Since unit buildings are made by stacking a plurality of rectangular parallelepiped building units, they tend to have a square appearance, which poses problems such as unevenness and lack of three-dimensionality.

Therefore, the main purpose of the present invention is to contribute to the improvement of the above-mentioned problems.

In order to solve the above problems, the present invention
The upper ends of the four pillars are connected in a rectangular shape with four ceiling beams via a joint piece, and the lower ends of the four pillars are connected in a rectangular shape with four floor beams via a joint piece. Above the lower floor building unit which has a unit frame connected in shape ,
The upper ends of the four pillars are connected in a rectangular shape with four ceiling beams via a joint piece, and the lower ends of the four pillars are connected in a rectangular shape with four floor beams via a joint piece. A unit building in which an upper floor building unit having a unit frame connected in a shape is installed,
A plurality of the lower floor building units are installed adjacent to each other in the adjacent direction, and a plurality of the upper floor building units are respectively installed adjacent to the plurality of lower floor building units in the adjacent direction, One upper floor building unit among the plurality of adjacent upper floor building units extends to the side perpendicular to the adjacent direction with respect to the lower floor building unit located below the one upper floor building unit. It has an overhang,
The joint piece provided at one corner of the projecting portion is supported by a support fitting attached to the joint piece at the bottom of an adjacent upper floor building unit, and
The supporting metal fittings , the floor beam and the joint piece of the overhang, and the floor beam and the joint piece of the adjacent upper floor building unit are horizontally fastened and fixed by bolts ,
The support fitting has a vertical surface portion extending along the side surface of the adjacent upper floor building unit, and a horizontal surface portion extending from the lower end of the vertical surface portion toward the overhanging portion,
A spacer for adjusting the position of the projecting portion is attached to at least one of the vertical surface portion and the horizontal surface portion .

According to the present invention, with the above configuration, it is possible to improve the appearance quality of the unit building by giving it an uneven feel and a three-dimensional effect.
Furthermore, by horizontally fastening and fixing the supporting metal fittings, the floor beam and joint piece of the overhang, and the floor beam and joint piece of the adjacent upper floor building unit with bolts, one corner of the overhang can be fixed. The vicinity can be directly and reliably fixed to the lower part of the adjacent upper floor building unit.
Further, by attaching a spacer to at least one of the vertical surface portion and the horizontal surface portion of the support fitting, it is possible to eliminate the need for position adjustment of one corner portion of the projecting portion.

1 is an overall perspective view of a unit building according to Example 1. FIG. It is a perspective view of the unit frame which constitutes a building unit. It is a perspective view of the unit building showing a state before placing an upper floor building unit forming an overhang on the lower floor building unit. It is a figure showing a support metal fitting. Of these, (a) is a perspective view before the support fittings are attached, (b) is a perspective view after the support fittings are attached, and (c) is a vertical view of (b) seen from the side. (a) is a perspective view of the unit building showing a state in which an upper floor building unit forming an overhang is placed on the lower floor building unit, and (b) is a side view of the supporting metal part in (a). FIG. (a) is a perspective view showing one end of adjacent upper floor building units being connected and fixed with bolts, (b) is a vertical view of (a) seen from the side, and (c) is ( It is a longitudinal view following b). FIG. 2 is an overall perspective view of a unit building according to a modification of the first embodiment. FIG. 2 is an overall perspective view of a unit building according to a second embodiment. FIG. 3 is an overall perspective view of a unit building according to a third embodiment. FIG. 7 is an overall perspective view of a unit building according to a modification of the third embodiment. FIG. 4 is an overall perspective view of a unit building according to a fourth embodiment.

Hereinafter, this embodiment will be described in detail using the drawings.
1 to 10 are for explaining this embodiment.

<Configuration> The configuration will be explained below.

As shown in FIG. 1, the unit building 1 is a building that can be constructed in a short period of time by transporting building units 2 manufactured in advance at a factory to a construction site and assembling them at the construction site.

The unit building 1 has a plurality of floors (upper floors and lower floors) by installing a plurality of rectangular parallelepiped building units 2 one above the other. In this embodiment, the unit building 1 has two lower floor building units 2A, 2B arranged adjacent to each other, and two upper floor building units 2C, 2D placed above the two lower floor building units 2A, 2B. They are placed next to each other. However, the unit structure of the unit building 1 is not limited to the above.

Here, to explain the building units 2 that constitute the lower floor building units 2A, 2B and the upper floor building units 2C, 2D, there are two types of building units 2: steel-framed ones and wooden ones. As shown in FIG. 1A, the building unit 2 of the system connects the upper ends of four columns 3 of equal length in a rectangular shape with four ceiling beams 4, and connects the lower ends of the four columns 3 with each other in a rectangular shape. It has a unit frame with a box rigid frame structure in which the sections are connected in a rectangular shape by four floor beams 5. The pillars 3 can be made of, for example, square steel pipes, and the ceiling beams 4 and floor beams 5 can be made of, for example, channel steel with an inward C-shape. A joint piece 6 is fixed to the upper end and lower end of the column 3, and the ceiling beam 4 and floor beam 5 are fixed to the column 3 via the joint piece 6. The joint piece 6 is a member having an inward C-shaped cross section into which the ceiling beam 4 and the floor beam 5 can be fitted.

The four ceiling beams 4 and the four floor beams 5 are composed of a pair of long sides that are equal in length and parallel to each other, and a pair of short sides that are equal in length and parallel to each other. The extending direction of the long side (long side direction 11) becomes the girder direction of the building unit 2, and the extending direction of the short side (short side direction 12) becomes the end direction of the building unit 2.

The lower floor building units 2A, 2B and the upper floor building units 2C, 2D are connected vertically by aligning the four pillars 3 (connecting the pillars 3). The weight (load) of the lower floor building units 2A and 2B can now be received via the pillars 3.

This embodiment can be provided with the following configuration for the unit building 1 in which the upper floor building units 2C and 2D are installed on the lower floor building units 2A and 2B as described above.

(1) In unit building 1,
The upper floor building unit 2C has a projecting portion 21 that extends to one side with respect to the lower floor building unit 2A.
The overhanging part 21 is supported near one corner part 22 by a support fitting 111 at the lower part of the adjacent upper floor building unit 2D (FIGS. 2 to 4), and at the position of the support fitting 111, the overhang The portion 21 and the adjacent upper floor building unit 2D are horizontally fastened and fixed by bolts 112 (FIG. 5).

Here, as described above, the unit building 1 of this embodiment has two upper floor building units 2C and 2D installed adjacently on two lower floor building units 2A and 2B which are arranged adjacent to each other. It has become. The two lower floor building units 2A, 2B and the two upper floor building units 2C, 2D are installed with their positions aligned on the other side in the long side direction 11. Among these, only one lower floor building unit 2A has a shorter dimension in the long side direction 11, and the other adjacent lower floor building unit 2B has a shorter dimension in the long side direction 11 than the above lower floor building unit 2A. It is longer than that, and has the same length as the two upper floor building units 2C and 2D, so that one side of the long side direction 11 is also aligned except for one lower floor building unit 2A.

One side of the long side direction 11 may be either side of the long side direction 11, but in this embodiment, it is the near side in the figure. The other side in the long side direction 11 is the back side in the figure.

The overhang portion 21 is a portion formed on one side of the upper floor building unit 2C located above one lower floor building unit 2A by shortening the dimension in the long side direction 11 of the lower floor building unit 2A.

The corner portions 22 are formed at two positions on both sides of the short side direction 12 at one end of the long side direction 11 of the overhang portion 21 . Unlike the other side of the long side direction 11, the two corner portions 22 on one side of the long side direction 11 of the overhang portion 21 are vertically connected to the pillars 3 of the lower floor building unit 2A (the pillars 3 are connected to each other). Therefore, it is necessary to support it with another support means (such as the pillar 23). Of these, for example, it is also possible to provide a structure in which support columns 23 are provided for all two corner portions 22 on one side of the long side direction 11 and supported by the support columns 23, but from the viewpoint of appearance and cost, etc. It is not preferable to provide struts 23 at all corner portions 22.

One corner portion 22 is on the side where the adjacent upper floor building unit 2D is located. By supporting and fixing one corner portion 22 to an adjacent upper floor building unit 2D using the support fitting 111, it is possible to eliminate the need to provide a support 23 for one corner portion 22.

The vicinity of one corner portion 22 may be the vicinity of the position of the pillar 3 on one side in the long side direction 11 of the adjacent upper floor building unit 2D, for example, the position of the joint piece 6 (FIG. 3).

The adjacent upper floor building unit 2D is an adjacent building unit 2 installed on the other side of the short side direction 12 with respect to the upper floor building unit 2C, which is the overhang 21.

The lower part refers to the position of the lower floor beam 5 of the adjacent upper floor building unit 2D.

The support fitting 111 is a metal fitting for supporting the lower part around one corner portion 22 of the projecting portion 21 from below.

The bolts 112 are fixing members for horizontally fastening and fixing the upper floor building units 2C and 2D. As the fixing member, in addition to the bolt 112, a flat washer 115, a spring washer 116, a nut 117, etc. can be used as appropriate (FIG. 5). The bolt 112 is fastened substantially horizontally in the short side direction 12. The direction in which the bolts 112 are fastened may be from the side of the upper floor building unit 2C or from the side of the upper floor building unit 2D.

(2) The other corner portion 22 of the overhanging portion 21 may be supported using the support 23.

Here, the support column 23 is a vertical member made of metal that extends in the vertical direction 26 and supports the corner portion 22 of the overhang portion 21 from below, and is a vertical member that supports the corner portion 22 of the overhang portion 21 in the upper floor building unit 2C. It is provided in a position that is vertically continuous with the pillar 3 located in . The struts 23 are provided at positions required for strength among the corner portions 22 of the overhang portion 21. In this embodiment, the other corner portion 22 where the support column 23 is provided is the corner on the side where there is no adjacent upper floor building unit 2D (one side of the short side direction 12), which also serves as the corner portion 22 for the entire unit building 1. Section 22, etc. Note that the pillars 23 are not necessarily necessary, and depending on the configuration of the unit building 1, there may be cases where the pillars 23 are not provided, as in other embodiments to be described later.

(3) As shown in FIG. 3, the support fitting 111 has a vertical surface portion 121 extending along the side surface of the adjacent upper floor building unit 2D, and a horizontal surface portion extending from the lower end of the vertical surface portion 121 toward the overhang portion 21 side. 122.
Spacers 123 and 124 for adjusting the position of the projecting portion 21 may be attached to at least one of the vertical surface portion 121 and the horizontal surface portion 122.

Here, the side surface of the adjacent upper floor building unit 2D may be the web portion 6a of the joint piece 6 having an inward C-shaped cross section. The web portion 6a is a vertical surface of the joint piece 6, and upper and lower flange portions 6b extending substantially horizontally toward the inside of the upper floor building unit 2D are integrally provided at the upper and lower ends of the web portion 6a.

The vertical surface portion 121 is formed at approximately the same height as the web portion 6a of the joint piece 6 with respect to the vertical direction 26. The vertical surface portion 121 has a screw hole 126 for laterally fixing the support fitting 111 to the web portion 6a of the joint piece 6 with a screw 125, a bolt insertion hole 127 for passing the connecting bolt 112, and a slot. One or more holes 129 are provided for inserting a tool such as 128 (FIG. 5(b)) to adjust the position.

In this embodiment, the plurality of screw holes 126 are provided in a horizontal row. The plurality of bolt insertion holes 127 are provided vertically in substantially a line. In addition, the web part 6a of the joint piece 6 of the upper floor building units 2C and 2D is provided with screw holes, bolt insertion holes, and slot holes corresponding to the screw holes 126, bolt insertion holes 127, and slot holes 129, as necessary. etc. will be provided.

The lower end portion of the vertical surface portion 121 extends to a position slightly lower than the lower flange portion 6b of the joint piece 6 (approximately the thickness of the horizontal surface portion 122 plus the thickness of the spacer 124).

The lateral surface portion 122 is for supporting the lower part of the corner portion 22 of the overhang portion 21 of the upper floor building unit 2C from below. The lower part of the corner part 22 becomes the lower flange part 6b of the joint piece 6 attached to the lower end part of the column 3 (FIG. 4(b)). Therefore, the lateral surface portion 122 is formed to have a length slightly longer than the length of the lower flange portion 6b in the short side direction 12 (width dimension of the lower flange portion 6b).

The vertical surface portion 121 and the horizontal surface portion 122 can be formed by bending a single metal plate.

The spacers 123 and 124 are metal members used to fill gaps, and a plurality of spacers with different thicknesses are prepared. The spacers 123 and 124 can be attached to the vertical surface portion 121 and the horizontal surface portion 122 as appropriate. In this embodiment, a spacer 123 is welded and fixed to the vertical surface portion 121 of the support fitting 111 in advance. A spacer 124 is attached to the side surface portion 122 with tape 131 or the like.

The spacer 123 (vertical surface part spacer) provided on the vertical surface part 121 fills the gap in the short side direction 12, and has a predetermined thickness. It can be fixed by welding in advance. The spacer for the vertical surface portion can be provided with bolt insertion holes and slotted holes similar to those described above. Note that the screw holes 126 of the vertical surface portion 121 are provided outside the spacer 123, and therefore are not provided in the spacer 123.

In addition, the spacer 124 (spacer for the side surface part) provided on the side surface part 122 fills the gap in the vertical direction 26, and the thickness varies depending on the situation at the site. 122 with tape 131.

(4) The support fitting 111 may have an upright portion 141 at the tip (of the side surface portion 122) that can lock the projecting portion 21.

The tip of the lateral surface portion 122 is an end portion of the lateral surface portion 122 on one side (the side of the overhang portion 21 ) in the short side direction 12 .

The upright portion 141 is a hook portion for locking the lower portion of the projecting portion 21 in the short side direction 12, and extends upward from the tip of the lateral surface portion 122. It is preferable that the rising portion 141 be formed in such a length that the height exceeds the lower flange portion 6b of the joint piece 6 at the lower end of the column 3 of the upper floor building unit 2C.

The rising portion 141 can be formed by bending a single metal plate together with the vertical surface portion 121 and the horizontal surface portion 122. The vertical surface portion 121, the horizontal surface portion 122, and the raised portion 141 make the support fitting 111 approximately J-shaped in side view.

<Function> The function of this embodiment will be explained below.

For example, two lower floor building units 2A and 2B are installed adjacently on the foundation, and two upper floor building units 2C and 2D are installed adjacently on the two lower floor building units 2A and 2B. In this way, the unit building 1 of this embodiment as shown in FIG. 1 is constructed.

As shown in FIG. 4(a), a crane 71 is used to install the lower floor building units 2A, 2B and the upper floor building units 2C, 2D. 2D is lifted and installed one by one by a crane 71.

By making one lower-floor building unit 2A smaller than the others (shortening the dimension in the short side direction 12), an overhang 21 is formed in the upper-floor building unit 2C above it, and the overhang A space such as a pilotis is created under the exit part 21. In order to establish this structure, one corner part 22 of the overhang 21 is attached with a support fitting 111 to the lower part of the adjacent upper floor building unit 2D (Fig. 3), and the upper floor building unit 2C is installed. At the same time, one corner 22 of the overhang 21 is supported by the support fitting 111 (FIG. 4), and finally one corner 22 of the overhang 21 is laterally attached to an adjacent upper floor building unit using a bolt 112. Fasten and fix it to the bottom of 2D (Figure 5). Further, the other corner portions 22 of the overhanging portion 21 may be supported from below by columns 23 installed perpendicularly to the lower portion of the overhanging portion 21.

<Effects> According to this embodiment, the following effects can be obtained.

(Effect 1) The upper floor building unit 2C may have a projecting portion 21 that extends to one side with respect to the lower floor building unit 2A. Thereby, a space such as a piloti can be created below the overhanging portion 21, giving the unit building 1 a sense of unevenness and three-dimensionality, and improving the appearance quality of the unit building 1. This overhang 21 can be formed by simply using something smaller than the upper floor building unit 2C in the lower floor building unit 2A, so there is no need to add any special structures, and it can be realized relatively cheaply and easily. can.

When the overhanging part 21 is provided in the upper floor building unit 2C, it becomes necessary to support the overhanging part 21. It is supported by a support fitting 111 at the bottom. Thereby, when the upper floor building unit 2C is installed on the lower floor building unit 2A, the support metal fittings 111 can be used to temporarily hold the projecting portion 21. Furthermore, compared to, for example, supporting all the corner portions 22 with pillars 23, it is possible to reduce costs and improve the appearance quality of the unit building 1.

Furthermore, by horizontally fastening and fixing the overhang 21 and the adjacent upper floor building unit 2D with the bolts 112 at the position of the support fittings 111, the vicinity of one corner 22 of the overhang 21 is connected to the adjacent upper floor building unit 2D. It can be directly and reliably fixed to the lower part of the upper floor building unit 2D.

(Effect 2) The other corner portion 22 of the projecting portion 21 may be supported using a support 23. Thereby, the other corner portion 22 of the overhang portion 21 can be reliably supported by the support 23.

(Effect 3) Spacers 123 and 124 may be attached to at least one of the vertical surface portion 121 and the horizontal surface portion 122 of the support fitting 111. Thereby, the gap between the overhanging part 21 and the adjacent upper floor building unit 2D can be adjusted with the spacers 123 and 124, and by installing the spacer 124 on the side part 122 of the support fitting 111, the support When one corner portion 22 of the projecting portion 21 is placed on the side surface portion 122 of the metal fitting 111, the height of the projecting portion 21 can be automatically determined by the spacer 124. Therefore, height adjustment of one corner portion 22 of the projecting portion 21 can be made unnecessary.

(Effect 4) The support fitting 111 may include an upright portion 141 at the tip (of the lateral surface portion 122). As a result, the upright part 141 locks (in the short side direction 12) the projecting part 21 (the lower part of one corner part 22 of the projecting part 21), so that the projecting part installed on the side surface part 122 of the support fitting 111 21 (one corner portion 22 thereof) can be prevented from slipping off from the side surface portion 122.

The first embodiment has been described above, but as in the modification shown in FIG. 6, the lower floor building unit 2A and the upper floor building unit 2C' may have different lengths in the short side direction 12. In this modification, the length of the short side direction 12 of the upper floor building unit 2C' is the same as that of the lower floor building unit 2A, whereas the length of the short side direction 12 of the upper floor building unit 2C' is the same as that of the lower floor building unit 2B. It is shortened by about half. Even in this case, the same effects as in the first embodiment can be obtained.

FIG. 7 is an overall perspective view of the unit building according to the second embodiment. In this embodiment, based on the unit building 1 of Embodiment 1, lower floor building units 2A (2), 2A (3 ), and a plurality of upper floor building units 2C(2) and 2C(3) having overhanging portions 21 relative to the lower floor building units 2A(2) and 2A(3) are successively provided.

In this case as well, each projecting portion 21 has a corner portion 22 that is adjacent to the upper floor building unit 2D in the short side direction 12, the upper floor building unit 2C, and the upper floor building unit 2C (2). They are each supported by support fittings 111 attached to the lower part of the overhang 21, and at the positions of the support fittings 111, the parts between the overhang 21 and the adjacent upper floor building unit 2D, or between the upper floor building unit 2C and the overhanging portion 21 of the upper floor building unit 2C (2) are fastened and fixed laterally (in the short side direction 12) by bolts 112 (not shown).

The pillars 23 can be provided for all the corner parts 22 of each overhanging part 21 (up to six pillars in this embodiment), but from the viewpoint of appearance and cost, the strength (minimum ) It is preferable to reduce the number by limiting it to only what is necessary. In this embodiment, for example, by supporting the other corner portions 22 of each overhanging portion 21 of the upper floor building units 2C, 2C(2), and 2C(3) with the columns 23, the number of columns 23 is reduced to (3). (to books). It is preferable that the support column 23 is provided at at least one of the adjacent corner portions 22 of the adjacent overhang portions 21 .

FIG. 8 is an overall perspective view of the unit building according to the third embodiment. In this embodiment, a lower floor building is installed in the middle of three or more upper and lower building units 2 (lower floor building units 2A, 2B. 2E and upper floor building units 2C, 2D. 2F) connected in the short side direction 12. One unit 2A and one upper building unit 2C each having an overhang 21 relative to the lower building unit 2A are provided. Alternatively, based on the unit building 1 of Example 1, the same size as the lower floor building unit 2B and the upper floor building unit 2D may be placed on one side of the short side direction 12 of the lower floor building unit 2A and the upper floor building unit 2C. The lower floor building unit 2E and the upper floor building unit 2F are added.

In this case as well, since the upper floor building units 2D and 2F are located on both sides of the short side direction 12 of the overhang part 21, the vicinity of the corner parts 22 on both sides of the short side direction 12 of the overhang part 21 are The adjacent upper floor building units 2D and 2F are supported by supporting metal fittings 111 attached to the lower part of the building units 2F, and bolts 112 ( (not shown) are fastened and fixed laterally (in the short side direction 12).

The pillars 23 can be provided for all the corner parts 22 of each overhanging part 21 (in this embodiment, two pillars at most), but from the viewpoint of appearance and cost, the pillars 23 can be provided in terms of strength (minimum ) It is preferable to reduce the number by limiting it to only what is necessary. In this embodiment, the support column 23 may not be particularly provided, or it may be provided at the lower part of either corner portion 22.

FIG. 9 is an overall perspective view of a unit building according to a modification of the third embodiment. In this embodiment, four or more upper and lower building units 2 (lower floor building units 2A, 2A(2), 2B.2E and upper floor building units 2C, 2C(2), 2D. 2F), lower floor building units 2A, 2A(2) and upper floor building units 2C, 2C(2) having an overhanging portion 21 relative to the lower floor building units 2A, 2A(2) are installed. A plurality of each are provided consecutively. Alternatively, based on the unit building 1 of Embodiment 3, an overhang 21 may be provided between the lower floor building unit 2A and the lower floor building unit 2E, and between the upper floor building unit 2C and the upper floor building unit 2F. One or more lower floor building units 2A(2) and upper floor building units 2C(2) are added.

In this case, since the upper floor building units 2D and 2F are located on one side of each overhang 21 in the short side direction 12, the vicinity of the corner 22 on one side of each overhang 21 is 12, and the vicinity of one corner part 22 of the overhang parts 21 adjacent to each other is attached to the lower part of the other corner part 22. At the position of the support fitting 111, the bolts 112 (unmounted) are connected between the overhang 21 and the adjacent upper floor building units 2D, 2F, and between the adjacent overhangs 21. (illustrated), and are fastened and fixed laterally (in the short side direction 12).

The pillars 23 can be provided for all the corner parts 22 of each overhanging part 21 (in this embodiment, there are four at most), but from the viewpoint of appearance and cost, the pillars 23 can be provided in terms of strength (minimum ) It is preferable to reduce the number by limiting it to only what is necessary. In this embodiment, for example, one of the corner portions 22 where the overhanging portions 21 are adjacent to each other is supported by the strut 23, so that the number of struts 23 can be reduced (to one).

FIG. 10 is an overall perspective view of the unit building according to the fourth embodiment. In this embodiment, as in the second embodiment, a lower floor building unit 2A (2) and an upper floor building unit 2C (2) having an overhanging portion 21 with respect to the lower floor building unit 2A (2), In addition to the lower floor building unit 2A and the upper floor building unit 2C installed one or more consecutively on one side of the short side direction 12, another lower floor building unit 2G is further installed on one side of the long side direction 11. , 2G(2), 2G(3) and upper floor building units 2H, 2H(2), 2H(3) are arranged vertically and adjacently (without the overhang 21). be.

In this case, each overhang 21 is attached near one corner 22 to the lower part of the overhang 21 of the upper floor building unit 2D or the upper floor building unit 2C adjacent in the short side direction 12. It is supported by a support fitting 111, and at the position of the support fitting 111, a bolt 112 (not shown) is used to connect the overhang 21 with the adjacent upper floor building unit 2C and the overhang 21 of the upper floor building unit 2C. They are each fastened and fixed laterally (in the short side direction 12).

Although not particularly shown, the vicinity of one or both corner portions 22 of each overhang portion 21 is connected to the short side of the other side of the upper floor building units 2H (2), 2H (3) adjacent in the long side direction 11. It is supported by a support fitting 111 attached to the lower part of the side, and at the position of the support fitting 111, the upper floor building units 2H(2) and 2H(3) adjacent to the overhang 21 are connected to bolts 112 (not shown). They can be fastened and fixed laterally (long side direction 11), respectively.

The pillars 23 can be provided for all the corner parts 22 of each overhanging part 21 (in this embodiment, there are four at most), but from the viewpoint of appearance and cost, the pillars 23 can be provided in terms of strength (minimum ) It is preferable to reduce the number by limiting it to only what is necessary. In this embodiment, depending on the support of each overhang 21 to the upper floor building units 2H (2) and 2H (3), it is possible to omit the provision of the pillar 23, or to provide support for the lower part of one of the corner parts 22. It is also possible to provide one.

It should be noted that each of the above-described embodiments can also have the same configuration as the first embodiment and obtain the same effects as the first embodiment.

1 Unit building 2 Building unit 2A Lower floor building unit 2B Lower floor building unit 2C Upper floor building unit 2D Upper floor building unit 2E Lower floor building unit 2F Upper floor building unit 2G Lower floor building unit 2H Upper floor building unit 21 Overhang part 22 corner part 23 pillar 111 support fitting 112 bolt 121 vertical part 122 lateral part 123 spacer 124 spacer 141 rising part

Claims (3)

The upper ends of the four pillars are connected in a rectangular shape with four ceiling beams via a joint piece, and the lower ends of the four pillars are connected in a rectangular shape with four floor beams via a joint piece. Above the lower floor building unit which has a unit frame connected in shape ,
The upper ends of the four pillars are connected in a rectangular shape with four ceiling beams via a joint piece, and the lower ends of the four pillars are connected in a rectangular shape with four floor beams via a joint piece. A unit building in which an upper floor building unit having a unit frame connected in a shape is installed,
A plurality of the lower floor building units are installed adjacent to each other in the adjacent direction, and a plurality of the upper floor building units are respectively installed adjacent to the plurality of lower floor building units in the adjacent direction, One upper floor building unit among the plurality of adjacent upper floor building units extends to the side perpendicular to the adjacent direction with respect to the lower floor building unit located below the one upper floor building unit. It has an overhang,
The joint piece provided at one corner of the projecting portion is supported by a support fitting attached to the joint piece at the bottom of an adjacent upper floor building unit, and
The supporting metal fittings , the floor beam and the joint piece of the overhang, and the floor beam and the joint piece of the adjacent upper floor building unit are horizontally fastened and fixed by bolts ,
The support fitting has a vertical surface portion extending along the side surface of the adjacent upper floor building unit, and a horizontal surface portion extending from the lower end of the vertical surface portion toward the overhanging portion,
A unit building characterized in that a spacer is attached to at least one of the vertical surface portion and the horizontal surface portion for adjusting the position of the projecting portion. The unit building according to claim 1,
The unit building is characterized in that the overhang part has another corner part supported using a support. The unit building according to claim 1 or claim 2 ,
The unit building is characterized in that the supporting metal fitting has a raised part at a tip thereof to which the projecting part can be locked.