JP2003119891A - Connection structure and floor structure and unit building having the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection structure capable of simply and arbitrarily setting height of a floor and a ceiling and provide a floor structure and a unit building having a connection device. SOLUTION: This connection structure is constituted in such a way that a horizontal member such as a small beam, a floor joist, a joist, etc., is connected with a beam through a connection piece, the connection piece is provided with an upper flange part, a lower flange part, and a side face part connected with the beam, and the side face part is provided with an insertion opening in which an end part of the horizontal member is fitted and which has a fringe part for supporting the horizontal member. The connection pieces having different heights of insertion openings are prepared to provide connection devices having different heights of the horizontal members in order to provide the floor structure having the floor having arbitrary height in accordance with design purpose and a building unit of the unit building having the floor and the ceiling having arbitrary heights.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combined structure and a floor structure and a unit building having the combined structure.

[0002]

2. Description of the Related Art In a building unit constituting a unit building, a connecting structure for connecting a large beam and a small beam is described in, for example, Japanese Unexamined Patent Publication No. 8-151689.

This coupling structure is used for assembling a floor portion which is a floor of a building unit and a ceiling portion which is a ceiling.

As shown in FIG. 9, the frame constituting the ceiling portion is composed of a large ceiling beam A, a small ceiling beam B, and a connecting piece C for connecting these beams. The ceiling girder A is made of metal and the ceiling girder B is made of wood. The coupling piece C includes an upper flange portion D, a lower flange portion E arranged in parallel with the upper flange portion D, and a side surface portion F connecting the end edges of the upper and lower flange portions D, E. A pair of bracket portions G is welded to the side surface portion F. The ceiling girder A and the ceiling girder B are joined by fitting the ceiling girder A into the space formed by the upper flange portion D, the lower flange portion E and the side surface portion F of the joining piece C, and joining the ceiling girder A. Then, the ceiling beam G is inserted between the bracket portions G of the coupling piece, and the ceiling beam B and the bracket portion G are fastened with bolts H or the like.

The frame constituting the floor is shown in FIG.
As shown in FIG. 5, it comprises a floor girder A ′, a floor girder B ′, and a connecting piece C ′ that connects these beams. Floor girder A '
And the floor beam B'is made of metal. The coupling piece includes an upper flange portion D ′ and a side surface portion F ′ that extends obliquely downward from an edge of the upper flange portion D ′. The floor girder A'and the floor girder B'are joined by connecting the upper flange portion D'of the joining piece C'to the upper surface portion J'of the floor girder A'and the free end or lower end of the side portion F'to the floor girder A '. It is made by welding to the lower surface portion K'of "," and the end portion of the floor beam B'to the side surface portion F'of the connecting piece C '.

[0006]

In the former frame coupling structure, since the ceiling beam A is bolted to the bracket portion G of the coupling piece C, the height of the ceiling beam B is always constant. Further, in the latter frame coupling structure, the floor beam G'is not only the coupling piece C ', but also the lower surface portion K'of the floor girder A'.
Since it is also supported by, the height of the upper surface of the floor beam B'is constant. Therefore, if the height of the floor beam B or the ceiling beam B'is changed according to the design purpose,
For example, if one of the two adjacent building units is a Western-style room and the other is a Japanese-style room, and the floors of these two units are barrier-free, you would try to lower the beam of the Japanese-style building unit. Must design and manufacture special joining pieces.

An object of the present invention is to obtain a combined structure, a floor structure having the combined structure, and a unit building in which the heights of the floor and the ceiling can be arbitrarily set and which can be easily set.

[0008]

In order to achieve the above-mentioned object, the connecting structure according to the first aspect of the present invention is such that a beam is connected to a beam through a connecting piece,
It is equipped with an upper flange part, a lower flange part, and a side surface part to which horizontal members such as joists and field edges are connected, and the connecting piece is connected to the beam. An insertion opening having an edge that supports the frame is provided.

According to a second aspect of the present invention, in the first aspect of the present invention, the insertion opening of the connecting piece is open to the outside.

And, the connecting structure of claim 3 is the same as that of claim 1.
Alternatively, in the coupling structure according to the second aspect, the side surface portion of the coupling piece includes a bracket portion arranged along the insertion opening and coupled to the horizontal member.

Further, in order to achieve the above object, the floor structure according to claim 4 is the structure of claim 1, claim 2 or claim 3.
In the floor structure including the connecting structure described in (1), the height of the horizontal member is changed by changing the insertion opening height of the connecting piece in a part of the floor.

Furthermore, in order to achieve the above object,
A unit building according to claim 5 is a unit building in which a plurality of building units each having the floor of the coupling structure according to claim 1, 2 or 3 are provided in parallel, and some of the building units are The height of the horizontal member is changed by changing the insertion opening height of the coupling piece.

[0013]

In the connecting structure according to the first aspect of the present invention, the height of the horizontal member is changed by changing the height of the insertion opening. When it is used for the floor or ceiling of the above, the floor and the ceiling having the height according to the design purpose can be obtained by preparing the connecting pieces having different insertion opening heights. Further, since the horizontal member is positioned by the edge portion that forms the insertion opening of the connecting piece, and the positioning work of the horizontal member is not particularly required, the joining work between the horizontal member and the connecting piece can be easily performed.

In this case, if the insertion opening of the connecting piece is open to the outside as in claim 2, the horizontal member is inserted only by dropping the horizontal member from the upper portion into the insertion opening of the connecting piece. Since the fitting is performed in the opening and at the same time, the positioning is performed by hitting the lower edge portion of the insertion opening, the coupling work can be performed more easily.

When the side surface portion of the connecting piece is provided with the bracket portion arranged along the insertion opening and connected to the horizontal member, the horizontal member is made of wood. However, it can be connected to the beam by fixing it to the bracket with bolts or nails. Also at this time, the horizontal member is positioned by the edge of the insertion opening, and no special positioning work of the horizontal member is required, so that bolt fastening and nailing can be performed easily. Further, according to the floor structure of claim 4 configured as described above, it is possible to easily obtain a floor having a height according to the specifications of each room and the housing equipment to be mounted, and it is possible to eliminate steps on the floor surface. .

Furthermore, in the unit building of claim 5 configured as described above, not only can floors and ceilings having different heights be obtained, but, for example, the height of the floor between adjacent building units can be increased. At the same time, steps can be eliminated.

[0017]

Embodiment 1 of the present invention will be described with reference to the drawings with regard to a connecting structure, a floor structure and a unit building having the connecting structure according to Embodiment 1 of the present invention.

1 to 3 show a connecting piece in the connecting structure according to the first embodiment of the present invention. The coupling piece is indicated generally by the reference numeral 10 in these figures.

This connecting piece 10 is for connecting at right angles a beam 21 made of, for example, a metal groove-shaped member, for example, grooved steel, to a cross member or beam 22 made of a metal square pipe. is there.

The connecting piece itself has a body fixed to the beam 21. The main body has an upper flange portion 11 and a lower flange portion 12
And a side surface portion 13. The upper flange portion 11 and the lower flange portion 12 are arranged in parallel with each other, forming a distance related to the distance between the upper surface portion 21 a of the beam 21 and the lower flange portion 12. The side surface portion 13 is the upper flange portion 11
And the lower flange portion 12 are connected to each other at one side edge portion thereof.

The side surface portion 13 is provided with an insertion opening 14. As shown in FIG. 3, the insertion opening 14 has a width corresponding to the width of the beam 22 and is arranged vertically from the upper flange portion 11 to the lower flange portion 12 in the main body. The upper portion of the insertion opening 14 is located at the upper flange portion 11 and is open at the upper flange portion 11. The rest of the insertion opening 14 is located above the side surface portion 13 and the lower end is closed. As shown in FIG. 3, the insertion opening 14 has a rectangular shape as a whole, and the lower edge portion 14a has an upper edge portion 14a.
It is parallel to b, and both side edge portions 14c are also parallel to each other. In this coupling piece, the distance L from the upper flange portion 11 of the insertion opening 14 to the insertion opening lower edge portion 14a is smaller than the height H of the beam 22, for example.

The connection of the connecting piece 10 to the beam 21 is carried out such that the inner surface of the upper flange portion 11 is the outer surface of the upper surface portion 21a of the beam 21.
The coupling piece 10 is fitted into the beam 21 so that the outer surface of the lower flange portion 12 contacts the inner surface of the lower surface portion 21b of the beam 21, and the upper flange portion 11 and the lower flange portion 12 are connected to the beam 21.
The upper and lower surfaces 21a and 21b are welded, for example.

To connect the beam 22 to the connecting piece 10, the end portion of the beam 22 is inserted into the insertion opening 14 of the connecting piece 10 from above the portion located at the upper flange portion 11.
It is made by dropping it inside and welding it to the upper flange portion 11 and the side surface portion 13. At this time, since the insertion opening 14 supports the beam 22 by the lower edge portion 14a and the beam 22 is positioned, the beam 22 is simply dropped from the upper portion to the insertion opening 14 to connect the beam 22 to the connecting piece. Combined with the fact that it can be attached to 10, the joining work can be performed easily.

This coupling structure is used, for example, for coupling floor girders and floor girders in the floor portion of a building unit constituting a unit building, and for ceiling girders and ceiling girders in the ceiling portion.

FIG. 4 shows an example of a building unit having this connection structure.

This building unit has a floor 120 and a ceiling 1.
30 and a pair of walls 140 and 150.

The floor portion 120 is provided with a floor frame composed of two floor girders 121 and a plurality of horizontal beam members, which are floor girders 122. The floor girder 121 is made of grooved steel, and the floor girder 122 is made of a metal square pipe. Floor girder 121
Are arranged parallel to each other. The floor girders 122 are arranged between the floor girders 121 at right angles to the floor girders 121 and at equal intervals, and both ends thereof are joined to the floor girders 121 by the joining pieces 110.

The ceiling part 130 is provided with a floor frame composed of two ceiling girders 131 and a plurality of ceiling girders 132. The ceiling girder 131 is made of grooved steel. The ceiling girders 131 are arranged parallel to each other. Ceiling beam 13
2 is made of wood with a rectangular cross section. Ceiling beam 13
2 is disposed between the ceiling girders 131 at right angles to the ceiling girders 131 and at equal intervals, and the stepped notches at both ends are fitted to the lower surface portion of the ceiling girder 131, and It is fixed by bolts, etc.

The wall portion 140 is provided with a wall frame composed of columns 141, ceiling beams 142 and floor beams 143. Pillar 14
Reference numeral 1 is a metal square pipe whose upper and lower ends are covered with caps. Ceiling beam 142 and floor beam 143
It is made of grooved steel. The pillars 141 are arranged in parallel with each other, and the ceiling beams 142 are hung on the upper portions of the pillars 141,
The floor beam 143 is hung on the lower part of the pillar 141 and is connected by joint plates 147 and 157, respectively.

The wall portion 150 has a wall frame composed of columns 151, ceiling beams 152 and floor beams 153. Pillar 15
Reference numeral 1 is a metal square pipe whose upper and lower ends are covered with caps. Ceiling beam 152 and floor beam 153
It is made of grooved steel. The pillars 151 are arranged parallel to each other. The ceiling beam 152 is bridged between the upper parts of the pillars 151, and the floor beam 153 is bridged between the lower parts of the pillars 151, and they are connected by joint plates 154 and 155, respectively.

Although not shown, each part 120, 1
30, 140, 150 are formed by attaching a base plate, a finishing plate, etc. to each frame.

The building unit may be, for example, a wall 140,
150 are arranged in parallel, the ceiling part 130 is arranged above the wall part 140, the joint plates 146 and 156 on the wall parts 140 and 150 are fitted to the ceiling girder 131 of the wall part 140, and the bolts are fastened. , Floor 120 to wall 1
It is assembled by placing the joint plates 148, 158 on the wall portions 140, 150 on the floor girders 121 of the floor portion 120 and bolting the joint plates 148, 158 arranged on the lower portions of the floor portions 40, 150.

This building unit constitutes a Western-style room, a Japanese-style room, a sanitary room, etc. by one or more. After building these building units, the unit building
It is constructed by connecting building units.

[0034]

[Embodiment 1] FIG. 5 shows an embodiment of the first embodiment of the present invention. The same or equivalent portions as those of the first embodiment will be described by giving the same reference numerals to the last two digits. .

First, the structure will be described.
When the specification of one building unit is a Western-style room, in the connecting part of the floor girder 121 and the floor girder 122 of the floor 120,
The bonding structure is applied.

Like the connecting piece 10 described with reference to FIGS. 1 to 3, the connecting piece 110 has a main body composed of an upper flange portion 111, a lower flange portion 112 and a side surface portion 113. The insertion opening 114 is provided so as to straddle the upper flange portion 111 and the side surface portion 113. Insertion opening 114
L1 is lower than the height H1 of the floor beam 122.

The coupling piece 110 is coupled to the floor girder 121 by connecting the inner surface of the upper flange portion 111 to the outer surface of the upper surface portion 121a of the floor girder 121 and the outer surface of the lower flange portion 112 to the inner surface of the lower surface portion 121b of the floor girder 121. The floor girder 121 is fitted so as to be in contact with the floor girder 121, and the upper flange portion 111 and the lower flange portion 112 are welded to the upper surface portion 121a and the lower surface portion 121b of the floor girder 121.
The floor beam 122 has an end portion at which the insertion opening 11 of the coupling piece 110 is inserted.
4 is dropped into the insertion opening 114 from above the portion located at the upper flange portion 111,
1 and the side surface 113 by welding to the floor girder 1
It is connected to 21. The base plate 161 is laid on the floor beam 122 and fixed to the floor beam 122. The flooring 162 is disposed on the base plate 122 and is fixed to the base plate 122.

Next, the operation of the first embodiment will be described. In the floor structure of the first embodiment, in addition to the effects of the first embodiment, when the floor girders 121 and the floor girders 122 are coupled to each other, the upper surface portion 122a of the floor girder 122 has a floor girder 121. Since it is higher than the upper surface 121a of the base plate 1,
61 and the flooring 162 can be stretched directly to the floor beam 122 without the need for floor joists or the like.

The rest of the configuration, functions, and effects are substantially the same as those of the first embodiment, and the description thereof will be omitted.

[0040]

Second Embodiment In the present invention, the coupling pieces 10 and 110 are
Upper flange portions 11 and 11 in the insertion openings 14 and 114
1, the height L from the lower edge 14a, 114a of the insertion opening,
By preparing different L1s, it is possible to obtain a floor of any height depending on the design purpose.

FIG. 6 shows Example 2 of the first embodiment of the present invention, and the same or equivalent portions as those of the first embodiment will be described by giving the same reference numerals to the last two digits.

Explaining the configuration, in the second embodiment, when one of the specifications of two adjacent building units is a Western-style room and the other is a Japanese-style room, the floor girder 221 and the floor girder 222 of the floor portion are arranged. The above-mentioned binding structure is applied to the binding portion with and.

Floor girder 22 of a building unit constituting a Western-style room
1 is placed parallel to the other floor girder. The floor girder 221 'of the building unit forming the Japanese-style room is also arranged in parallel with another floor girder.

The floor girder 222 is arranged between the floor girder 221 and the other floor girder, and both ends thereof are connected to these floor girders by connecting pieces 210. Also, the floor beam 22
2'is also arranged between the beam girder 221 'and the other floor girder, and both ends thereof are connected to these floor girders by connecting pieces 210'.

A base plate 261 is laid on the floor beam 222. A finishing plate, such as a flooring 262, is laid on the base plate 261. Also, the floor beam 222 '
Also, a base plate 261 'is laid. A tatami mat 262 'is laid on the base plate 261'. The sill 263 is arranged between the flooring 262 and the tatami mat 262 ′ and is fixed to the base plate 261.

Among the connecting pieces, the connecting piece 210 which constitutes the floor of the building unit which is a western-style room has the same structure as the connecting piece described with reference to FIGS. The connecting piece 210 ′ that constitutes the floor of the building unit that is a Japanese-style room is shown in FIGS.
The body has the same construction as the coupling piece described in connection with, but with a different insertion opening 214 '. Insertion opening 21
4'is provided in the coupling piece body so that the height L2 between the upper flange portion 211 'and the lower edge portion 214a' of the insertion opening 214 'is substantially the same as the height of the floor beam 222'. .

Next, the operation of the second embodiment will be described. In addition to the function and effect of the first embodiment, the floor beam 2
When 22 ′ and the beam member 223 ′ are coupled by the coupling piece 210 ′, the upper surface of the floor beam 222 ′ becomes lower than that of the floor beam 222, and the base plate 261 ′ and tatami 262 ′ are coupled to the floor beam 222 ′. The tatami mat 262 ′ is flush with the surface of the flooring 262 when laid. And the threshold 26
Even if 3 is arranged between the flooring 262 and the tatami mat 262 ', they are substantially in the same plane, so that a barrier-free building can be easily obtained.

The rest of the configuration, functions, and effects are substantially the same as those of the first embodiment, and the description thereof will be omitted.

[0049]

[Third Embodiment] FIG. 7 shows a third embodiment of the first embodiment of the present invention, in which the same or equivalent portions as those in the first embodiment will be described by giving the same reference numerals to the last two digits. To do.

Explaining the structure, in the third embodiment, one of the specifications of two adjacent building units is used as a washroom,
On the other hand, when the structure is used as a bathroom, the above-mentioned connecting structure is applied to the connecting portion between the floor girder 321 and the floor girder 322 of the floor.

The configuration will be described. In FIG. 7 of the third embodiment, the floor girders constituting the floor of the building unit constituting the washroom are designated by the reference numeral 321 and the floor girders constituting the floor of the building unit constituting the bathroom are designated by the reference numeral 321 ′. Each is shown. Although not shown, each building unit is equipped with a washbasin, a bath tub, a shower, and other housing equipment according to its use.

The floor portion of the building unit constituting the washroom includes a floor girder 321 and another floor girder arranged in parallel therewith. The floor of the building unit that constitutes the bathroom is provided with a floor girder 321 'and another floor girder arranged in parallel therewith.

The floor girder 322 is arranged between the floor girder 321 and the other floor girder, and both ends thereof are connected to these floor girders by the connecting pieces 310. Floor beam 322 '
Is also arranged between the beam girder 321 'and one of the floor girders on the outer side, and both ends thereof are connected to these floor girders by connecting pieces 310'.

A base plate 361 is laid on the floor beam 322, and a flooring 362 is laid on the base plate 361.

A base plate 361 'is laid on the floor beam 322'. The trap 365 'is fixed to the bathroom substrate 361'. Although not shown, the trap 36
The bottom wall of 5'is connected to the bathroom plumbing. Waterproof version 37
1'is the substrate 36 through the joist 369 'and the bundle 373'.
It is fixed at 1 '. The substrate 371 'is the height adjuster 36
4'is supported by the base plate 361 ', and the height adjuster 361' provides a trap 365 'and a waterproof plate 37.
2 ', joists 369' and bundle 373 'can be raised and lowered.

A rail 366 'and a drainboard 368' are arranged in parallel inside the trap 365 'and are fixed to the trap 365'. Sliding door 367 '
Consists of three pieces, and the guide at the lower edge is rail 36
6 ', the guide on the upper edge is the ceiling 13
It can be slid in the front-back direction on the paper surface of the drawing by being fitted into the rail at 0.

Coupling piece 3 in the building unit to be the washroom
10 has the same structure as the coupling piece 10 described with reference to FIGS. However, the connecting piece 310 'in the building unit serving as the bathroom is different only in the insertion opening 314'. The insertion opening 314 ′ has a height L between the upper flange portion 311 ′ and the lower edge portion 314a ′ of the insertion opening 314 ′.
3 is longer than the height H3 of the floor beam 322 '. Floor beam 3
22 'is fitted into the insertion opening 314' by bringing the lower surface portion 322b 'into contact with the lower edge portion 314a' of the insertion opening 314 'or the inner surface of the lower flange portion 312', and the side surface portion 313 '.
The lower flange portion 312 'is joined by welding or the like.

Next, the operation of the third embodiment will be described. In addition to the effects of the first embodiment, the floor beam 322 'on the bathroom side is lower than the floor beam 322 on the washroom side, so that the base plate 361', the trap 365 ', etc. Even if installed in 322 ', the waterproof plate 37 will be the floor of the bathroom
2'and the washroom floor 362 can be flush.

The rest of the configuration, functions, and effects are substantially the same as those of the first embodiment, and the description thereof will be omitted.

[0060]

Embodiment 2 of the Invention FIG. 8 shows Embodiment 2 of these connection structures, floor structures and connection structures used in a unit building.

The beam connecting means differs from the connecting structure of the first embodiment only in the structure of the connecting piece.

In FIG. 8, the connecting piece is generally denoted by reference numeral 4.
10, the girders are indicated by 421, and the joists are indicated by 422.

The coupling piece 410 is similar to the coupling piece described in the first embodiment with reference to FIG. 1 and has an upper flange portion 411.
And a lower flange portion 412 arranged in parallel with the upper flange portion 411, an upper flange portion 411 and a lower flange portion 412.
And a side surface portion 413 for connecting to the upper flange portion 41.
1 and the side surface portion 413 are provided with an insertion opening 414. However, in this coupling piece 410, the side surface portion 413 is provided with a pair of bracket portions 415. These bracket portions 415 are arranged on the side surface portion 413 along both side edge portions of the insertion opening 414, and are joined thereto by welding or the like.

The connecting piece 410 is connected to the beam 421 by connecting the upper flange portion 411, the lower flange portion 412 and the side surface portion 4 to each other.
The girder 421 is fitted in the space formed by 13 and welded together. Also, the beam 422
Are dropped into the insertion opening 414 from above the portion of the insertion opening 414 of the coupling piece 410 located at the upper flange portion 411, and are fixed to the bracket portion 415 by bolts 423, nuts 424, etc. Has been done.

Next, the operation of the second embodiment will be described. In addition to the operation and effect of the first embodiment, the beam 422 and the connecting piece 410 are further provided as compared with the connecting structure of the first embodiment.
Can be firmly connected. And this connecting piece 410
Can perform the connection even if the beam 422 is made of wood. That is, the wood beam is dropped into the insertion opening 414 from above the portion of the insertion opening 414 of the coupling piece 410 located at the upper flange portion 411, and the wood beam and the bracket portion 415 are removed by the bolt 423, the nut 424, the nail, or the like. To conclude.

The rest of the configuration, functions and effects are substantially the same as those of the first embodiment, so description thereof will be omitted.

In the embodiment described above, the connecting piece 1
0,210,310,410 is one beam 21,221,
The upper flange portion 1 is the portion that is connected to 321 and 421.
1, 211, 311, 411, lower flange portions 12, 212, 312, 412 arranged in parallel therewith, and side surface portions 13, 213, 31 connecting the edges of the upper and lower flange portions.
3, 413, for example, the upper flange portion and the side surface portion that extends obliquely downward from the end of the upper flange portion, and the upper flange portion is joined to the upper surface portion of the beam. A ceiling girder 131 that constitutes the ceiling portion 130 shown in FIG. 4 as a structure in which the free edge is joined to the lower surface of the beam.
Modifications may be made without departing from the scope of the present invention, such as connecting the ceiling beam 132 to the ceiling beam 132.

[0068]

According to the first aspect of the present invention, since the height of the horizontal member is changed by changing the height of the insertion opening, the height of the horizontal member is changed. When it is used for the floor or ceiling of a building unit that composes a building, a floor or ceiling having a height according to the design purpose can be obtained by preparing connecting pieces having different heights of the insertion openings. Since the horizontal member is positioned by the edge portion that forms the insertion opening of the connecting piece, and the horizontal member is not particularly required to be positioned, the joining work between the horizontal member and the connecting piece can be easily performed. it can.

In the connecting structure according to the second aspect, the horizontal member is fitted into the insertion opening by merely dropping the horizontal member from the upper portion into the insertion opening of the connecting piece, and at the same time, the horizontal member is positioned by contacting the lower edge portion of the insertion opening. Therefore, the joining work can be performed more easily.

In the joint structure according to the third aspect, even if the horizontal member is made of wood, it can be joined to the beam by fixing it to the bracket portion with bolts or nails.

With the floor structure according to the fourth aspect, a floor having a height according to the specifications of each room and the housing equipment to be mounted can be easily obtained, and the steps on the floor can be eliminated.

In the unit building according to claim 5, not only the height of the floor or ceiling or both of them can be made different in some building units, but also the height of the floor surface is matched with that of the adjacently arranged building units. Therefore, it is possible to eliminate the step.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a coupling structure according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is an exploded perspective view of the coupling structure shown in FIG.

FIG. 4 is an exploded perspective view of a building unit that constitutes the unit building according to the first embodiment of the present invention.

FIG. 5 is a cross-sectional view showing a floor structure of Example 1 of Embodiment 1 of the present invention.

FIG. 6 is a cross-sectional view showing a floor structure of Example 2 of Embodiment 1 of the present invention.

FIG. 7 is a cross-sectional view showing a floor structure of Example 3 of Embodiment 1 of the present invention.

FIG. 8 is a perspective view showing a coupling structure according to a second embodiment of the present invention.

FIG. 9 is an explanatory view showing a conventional ceiling beam coupling structure.

FIG. 10 is an explanatory view showing a conventional floor beam connection structure.

[Explanation of symbols]

10, 110, 210, 310, 410 ... Coupling piece 11, 111, 211, 311, 411 ... Upper flange portion 12, 112, 212, 312, 412 ... Lower flange portion 13, 113, 213, 313, 413 ... Side surface portion 14, 114, 214, 314, 414 ... Insertion openings 14a, 114a, 214a, 314a ... Edges 21, 22, 421, 422 of insertion openings ... Beams 120 ... Floor portions 121, 221, 321, 421 ... Floor beams (beams) ) 122, 222, 322, 422 ... Floor beam (horizontal member) 130 ... Ceiling part 131 ... Ceiling beam 132 ... Ceiling beam 415 ... Bracket part L, L1, L2, L3 ... Height of insertion opening

Claims (5)

[Claims] 1. A beam is provided with an upper flange portion, a lower flange portion, and a side surface portion to which a transverse member such as a beam, joist, or a field edge is coupled via a coupling piece, and the coupling piece is coupled to the beam. The connecting structure is characterized in that the portion is fitted with an end portion of the horizontal member and has an insertion opening having an edge portion for supporting the horizontal member. 2. The coupling structure according to claim 1, wherein an upper portion of an insertion opening of the coupling piece is opened to the outside. 3. The connecting structure according to claim 1, wherein a side surface portion of the connecting piece includes a bracket portion that is arranged along the insertion opening and that is connected to the cross member. 4. A floor structure comprising the connecting structure according to claim 1, 2, or 3, wherein the insertion opening height of the connecting piece is changed in a part of the floor,
A floor structure characterized in that the height of the horizontal member is changed. 5. A unit building in which a plurality of building units provided with the connecting structure according to claim 1, 2, or 3 in a floor portion are arranged in parallel, and in some building units, the connecting A unit building characterized in that the height of the horizontal member is changed by changing the height of the insertion opening of the piece.