JPH11315583A - Supporting member and building unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a supporting member capable of making adjusting member unnecessary and of improving the productivity and workability for buildings using building units or framework method. SOLUTION: A step portion 45 is formed on at least one flange 43 among flanges 42 extended from both the ends of a web 41 of a supporting member 40. The surface of one flange 43 forming the stepped portion 45 and the surface of beams 22, 23 contacting other flange 43 are made flush each other. In this way, no level difference is created on this flush surface so that the productivity and workability of the buildings built by unit method or framework method can be improved and the adjusting material can be made unnecessary compared to the conventional method in which an adjusting member is attached to the flange surface of the supporting member and the level difference from each upper beam and lower beam was eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support member and a building unit, and more particularly to a support member and a building unit which form an atrium or the like.

[0002]

2. Description of the Related Art In a unit-type building constructed by combining a plurality of building units produced in factories and the like in a vertical direction at a building site, each building unit has four pillars and a space between the upper ends of the four pillars. It generally has a framework including an upper beam and a lower beam spanned between lower ends, and these beams are generally channel materials. Conventionally, there is a unit-type building in which a stairwell communicating with upper and lower floors is formed.

In the case of a unit-type building having such a stairwell, a joint between the lower-floor building unit and the upper-floor building unit has a structure as shown in FIG.
Specifically, the atrium is formed by forming a space that communicates with the upper and lower floors without forming the ceiling portion of the lower-floor building unit 8 and the floor portion of the upper-floor building unit 10. At this time, a joint member 54 such as a gypsum board is attached to a joint portion between the lower-floor building unit 8 and the upper-floor building unit 10 so that the surface of the inner wall panel 53 of each of the building units 8 and 10 is continuous. .

The inner wall panel 53 is provided between the upper beam 22 in the lower-floor building unit 8 and a lower beam (not shown) facing the upper beam 22, and the lower beam 33 in the upper-floor building unit 10 and faces the lower beam 33. It is erected between an upper beam (not shown) and an abutment member 52 attached to the interposition material 51 with an interposition material 51 interposed therebetween. This inner wall panel 5
Reference numeral 3 denotes a frame material 53A to which a face material 53B such as a gypsum board is pasted. In addition, the joint member 54 is supported by each support member 100 made of a channel material fitted to the upper beam 22 and the lower beam 33 disposed at the joint between the lower-floor building unit 8 and the upper-floor building unit 10. Installed. That is, the joint between the lower-floor building unit 8 and the upper-floor building unit 10 is hidden by the joint member 54.

At this time, in the upper beam 22 and the lower beam 33, the upper beam 22, the lower beam 3 on the side where the inner wall panel 53 is in contact.
3 and the surface of each of the support members 1
Since a step is formed on the surface of the flange 100A of No. 00, the surface of the upper beam 22 and the lower beam 33 on the side where the inner wall panel 53 comes into contact is flattened so as to fill the step. The adjusting member 101 is attached to the surface of the flange 100A of the support member 100. This prevents the inner wall panel 53 and the like from tilting.

[0006]

However, when a building unit forming a stairwell or the like is manufactured in a factory or the like, since the adjusting member is smaller than any other members constituting the building unit, the work of attaching the adjusting member is not necessary. There is a problem that it takes time and the construction work of the building unit is complicated, thereby lowering the productivity of the building unit. Therefore, in recent years, it has been desired to omit the adjusting material. In addition, similar joint structures may be adopted in buildings that are formed using a framed system that joins columns and beams at the site. In this case, it is necessary to omit the adjusting material and improve the workability at the site. Is required.

An object of the present invention is to provide a support member which can eliminate the need for adjusting materials and can improve the productivity and workability of a building unit or a framed type building, and a building unit which can easily form a blow-through. Is to do.

[0008]

The support member according to the first aspect of the present invention, when described with reference to the drawings, has openings 22A, 3A of beams 22, 33 having openings 22A, 33A on the side.
3A is a supporting member 40 fitted to 3A, and has a substantially U-shaped cross section including a web 41 and flanges 42 extending from both ends of the web 41, and each flange extending from both ends of the web 41. A step 45 is formed on at least one of the flanges 43, and the surface of the one flange 43 on which the step 45 is formed and the surfaces of the beams 22 and 33 abutting on the one flange 43 are flush with each other. It is characterized by being provided.

A step is formed on at least one of the flanges extending from both ends of the web, and the surface of the one flange having the step and the surface of the beam contacting the one flange are formed. By providing flush,
No step occurs on the flush surface. For this reason, compared to the case where the adjusting member is attached to the surface of the flange of the support member as in the conventional case and the step with the surface of the beam is filled, the adjusting member is unnecessary, and the building unit, the building of the frame structure, etc. Productivity and workability are improved.

Further, the supporting member 40 is connected to a beam (for example, the upper beam 2).
2. It is preferable that a plurality of lower beams 33) are formed in pieces so that a plurality of them can be attached at predetermined intervals along the longitudinal direction. If the support members are formed in a piece shape so that a plurality of them can be attached at predetermined intervals along the longitudinal direction of the beam, the weight of the building unit and the building of the frame type system can be reduced, and the cost of the support member and further the building unit and the shaft The cost of a building or the like can be reduced.

Further, it is desirable that the support member 40 is formed to be long so as to be attachable over the entire length of the beam (for example, the upper beam 22, the lower beam 33) along the longitudinal direction. If the support member is formed to be long enough to be attached over the entire length along the longitudinal direction of the beam, for example, when attaching a face material or the like to the web of the support member by nailing, etc., while checking the position of the support member It is not necessary to attach it, and it can be nailed to any position on the web, so the work of fixing the surface materials etc. can be simplified, and the productivity and workability of building units and framed buildings can be improved. Is done.

Further, the step size L1 of the step portion 45 formed on the support member 40 is set to a beam (for example, the upper beam 22, the lower beam 3).
It is preferable to make the same as the thickness L2 of 3). If the step size of the step formed on the support member is the same as the thickness dimension of the beam, the surface of the flange on which the step of the support member is formed simply by directly abutting the support member on the beam, and the beam Since the surface can be easily made flush with the surface, the productivity and workability of the building unit, the framed building, and the like are improved accordingly.

A building unit according to a fifth aspect of the present invention will be described with reference to the drawings.
And building units 8 and 10 having a framework including a plurality of beams 22, 23, 32 and 33 spanned between upper ends and lower ends of these four pillars 21 and 31. 2. The method according to claim 1, wherein at least some of the plurality of beams are provided.
4 is provided, and the surface of the one flange 43 on which the step portion 45 of the supporting member 40 is formed and the beam abutting on the one flange 43 (for example, the upper beam 22 and the lower beam The inner wall panel 53 is in contact with the surface of the beam 33), and a joint member 54 for concealing the beam and the support member 40 is attached to the web 41 of the support member 40, so that the surfaces of the inner wall panel 53 and the joint member 54 are continuous. It is characterized by the following.

[0014] By making the surfaces of the inner wall panel and the joint member continuous as described above, when forming a blow-through or the like, construction work such as attaching a wall finishing material to the surface of the inner wall panel and the joint member can be performed. Easy to do. At this time, the inner wall panel only needs to abut on the surface of the flange and the surface of the beam forming the step portion of the supporting member which is flush, and the joint member is also attached to the web of the supporting member by nailing or the like. , It is possible to easily form a blow-through or the like.

It is preferable that the building unit can be arranged adjacent to another building unit arranged vertically and the joint member can be arranged continuously with the inner wall panel of the adjacent building unit.

If the building unit can be arranged adjacent to another building unit arranged in the vertical direction, and the joint member can be arranged continuously to the inner wall panel of the other building unit adjacent to the building unit, for example, a blow-through can be prevented. At the time of formation, the joints of the building units arranged vertically adjacent to each other can be easily and quickly concealed, so that the construction work of the building units can be performed much more easily.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a part of a unit building 1 according to an embodiment of the present invention. The unit building 1 includes a building body 3 built on a foundation 2 and a roof (not shown) provided above the building body 3.

The building body 3 includes a plurality of first-floor building units 6 as lower-floor building units arranged on the foundation 2 and a second-floor building unit as an upper-floor building unit disposed above the first-floor building units 6. It is formed by a combination with the building unit 7.

The inside of the building body 3 includes the inside of the first first-floor building unit 8 of the first-floor building unit 6 and the inside of the first second-floor building unit 10 of the second-floor building unit 7. Is formed. The first first-floor building unit 8 is provided with a stair 8A facing upward. Further, in the second first-floor building unit 9 of the first-floor building unit 6, a first-floor living room 9A communicating with the atrium 12 is formed. Further, the second second-floor building unit 11 of the second-floor building unit 7 has a staircase 8A.
11A is formed. On the side of the stairwell 12 of the second floor living room 11A, there is a handrail panel 11B.
And a handrail 11C is attached along the stairs 8A.

In this figure, the dotted lines indicate the first floor, the second floor,
This shows a schematic boundary between the story building units 6 and 7. The side surface of the building body 3 is an outer wall 4, and the upper part of the building body 3 is a ceiling 5 of a second-floor building unit 7.

FIG. 2 shows the frameworks 20 and 30 forming the first and second-floor building units 8 and 10.
Frames 20 and 30 are composed of four pillars 21 erected at four corners,
31 and between the upper and lower ends of these four pillars 21, 31 and openings 22A, 32A, 23 on the side.
A and 33A are formed to include four upper beams 22, 32 and lower beams 23, 33, respectively.

The upper beams 22, 32 and the lower beams 23,
33 faces the atrium 12 shown in FIG.
Of these upper beams 22, 32 and lower beams 23, 33, four upper beams 22 in the first first-floor building unit 8 and four lower beams 33 in the first second-floor building unit 10.
, A plurality of support members 40 formed in pieces along the longitudinal direction are attached at predetermined intervals.

More specifically, as shown in FIGS. 3 and 4, the support member 40 includes a square plate-shaped web 41 and the web 41.
Openings 22A and 3A of the upper beam 22 and the lower beam 33 from the upper and lower ends of the
The support member 40 has a flange 42 extending toward the 3A side and has a U-shaped cross section.
The lower beam 33 is fitted into the lower beam 33 through the openings 22A and 33A.

One of the flanges 42 extending from the upper and lower ends of the web 41 to the openings 22A, 33A of the lower beam 33 from the upper and lower ends of the web 41, one of the sides facing the inner wall panel described later. A step portion 45 having a high surface 45A and a low surface 45B is formed on the flange 43 of FIG. Step 4
5 is formed in accordance with a predetermined projecting dimension of the support member 40 with respect to each of the beams 22 and 33 in the indoor direction, and the joint member 54 is supported by the predetermined projecting dimension.
, The surface of the joint member 54 is made to be continuous with the surface of each inner wall panel 53.

The upper beam 22 and the lower beam 3 are placed on the lower surface 45B of the flange 43 on which the step 45 is formed.
No. 3 flanges 22B and 33B are in contact with each other, and the surface of the upper surface 45A of one of the flanges 43 and the flanges 22B and 3 of the upper beam 22 and the lower beam 33 which are in contact with the lower surface 45B.
3B is flush with the surface. That is, as shown in FIG. 5, the stepped portion 4 formed on one flange 43 is formed.
The height dimension of the upper surface 45A with respect to the lower surface 45B of the No. 5 so-called step difference L1 is the same as the thickness L2 of each of the upper beam 22 and the lower beam 33.

Here, the same dimension means that the flanges 22B, 33 of the upper beam 22 and the lower beam 33, which are in contact with the upper surface 45A of one flange 43 and the lower surface 45B, respectively.
This shows a state in which, when the inner wall panel is brought into contact with the surface of B, the inner wall panel does not tilt without using a conventionally used adjusting material or the like.

An interposition material 51 and an interposition material 5 are interposed between these flush surfaces and the lower beam and the upper beam (not shown) of the frames 20 and 30 which face each other.
The inner wall panel 53 is connected to the abutting member 52 attached to the first member 1 and is in upright abutment. This inner wall panel 53
Is a frame material 53A to which a face material 53B such as a gypsum board is pasted. Note that the upper surface 45A and the lower surface 45B
The surface located farther from the end of the inner wall panel 53 is the lower surface 45B, and the surface closer to the end of the inner wall panel 53 is the higher surface 45A.

The web 41 of each support member 40 has
Except for the portion where the stairs 8A are connected, the upper beam 22, the lower beam 33
And a joint member 54, such as a gypsum board, which conceals the support member 40 and has a continuous surface with each inner wall panel 53
Is attached by nailing or the like. Specifically, the joint member 54 has a dimension from the lower end of the face material 53B of the building unit 10 to the upper end of the face material 53B of the building unit 8, and has a dimension in the longitudinal direction along the longitudinal direction of each of the beams 22, 33. It is formed in a substantially rectangular shape having the same size as that of the above, and the surface thereof is continuously arranged on the inner wall panel 53 of each of the building units 8 and 10. On these continuous surfaces, for example, a wall finishing material 55 such as a vinyl cloth is pasted.

An outer wall panel 62 is attached to the outside of the first first-floor building unit 8 via an L-shaped bracket 61 fixed to the upper beam 22. Similarly, the first two
Outside the floor building unit 10, another L-shaped bracket 63 fixed to the lower beam 33 and this bracket 63
The outer wall panel 62 is attached via another bracket 64 applied to the outer wall panel 62. That is, the outer wall panel 62 is attached to the first and second floor building units 8 and 10 via the bracket 61 on the upper side.
The lower side is formed via brackets 63 and 64.

A backup material 65 and a caulking material 66 are interposed between the upper and lower outer wall panels 62, and the outer wall 4 is formed including the outer wall panel 62, the backup material 65, and the caulking material 66. ing.

Next, the procedure for building such a unit building 1 will be described. First, the building units 6 and 7 are manufactured in advance in a factory or the like. At this time, the building units 8 and 10 forming the atrium 12 are provided with the respective skeletons 20 and 3.
After 0 is formed, a plurality of piece-shaped support members 40 are fitted at predetermined intervals to the upper beam 22 and the lower beam 33 of the seam portion when combined in the vertical direction. here,
One flange 43 of the support member 40 is connected to the inner wall panel 53.
Place on the side where will be attached. The upper beam 22 and the lower beam 33 are in contact with the surfaces of the flanges 22B and 33B of the upper beam 22 and the lower beam 33, which are in contact with the surface of the one flange 43 and the one of the flanges 43. It is connected to the member 52 and the inner wall panel 53 is abutted and attached. Also, the outer wall panel 62, the handrail 11C, the stairs 8A, and the like are attached to the framework of each of the building units 6, 7.

Next, these building units are vertically combined on a foundation 2 of a building site to form a unit building 1. Here, a joint for concealing the upper beam 22, the lower beam 33, and the support member 40 at each of the support members 40 at the joint portion between the first first-floor building unit 8 and the first second-floor building unit 10 having the atrium 12 formed therein. The member 54 is attached.
Then, a wall finishing material 55 is attached to the surfaces of the inner wall panel 53 and the joint member 54 to finish the inner wall surface,
A blow-through 12 is formed.

Further, the outer wall 4 of the building body 3 is formed by interposing a backup material 65 and a caulking material 66 in a gap between the upper and lower outer wall panels 62 to perform waterproofing.
A roof is provided above the building body 3 to construct the unit building 1.

According to this embodiment, the following effects can be obtained. A step 45 is formed on one of the flanges 43 extending from both ends of the web 41, and the one flange 4 on which the step 45 is formed is formed.
3 and each upper beam 2 contacting one flange 43
2. Since the surfaces of the flanges 22B and 33B of the lower beam 33 are flush with each other, no step is formed on the flush surface. For this reason, compared with the case where the adjusting material is attached to the surface of the flange of the support member as in the conventional case and the step between the flange surface of each upper beam and the lower beam is filled, the adjusting material can be eliminated, and the building can be eliminated. The productivity of the units 6 and 7 can be improved.

Further, since the support member 40 is formed in a piece shape, the weight of the building units 8 and 10 can be reduced, and the cost of the support member 40 and the building units 6 and 7 can be reduced.
Cost can be reduced.

Further, since the step size L1 of the step 45 formed on the support member 40 is the same as the thickness L2 of the upper beam 22 and the lower beam 33, each of the upper beam 22, the lower beam 3
3, the surface of one of the flanges 43 on which the step 45 of the support member 40 is formed and the surfaces of the upper beam 22 and the lower beam 33 are simply flushed with each other just by directly abutting the step 45 of the support member 40. Therefore, productivity and workability of the building units 6 and 7 can be improved accordingly.

The inner wall panel 53 and the joint member 5
Since the surface of the inner wall 4 is continuous with the surface of the inner wall panel 53 and the joint member 54, the construction work such as attaching the wall finishing material 55 can be easily performed. Furthermore, in order to make the surfaces of the inner wall panel 53 and the joint member 54 continuous, the inner wall panel 5
Reference numeral 3 denotes a surface of one of the flanges 43 on which the step portions 45 of the supporting member 40 are flush with each other, and a flange 22 of each of the upper beam 22 and the lower beam 33 which comes into contact with the one flange 43.
B, 33B only need to be brought into contact with the surface, and the joint member 54 need only be attached to the web 41 of the support member 40 by nailing or the like, so that the blow-through 12 can be easily formed.

The step 45 is formed by each beam 2 of the support member 40.
Since it is formed in accordance with the predetermined projecting dimension of the support member 40 in the room direction with respect to the upper and lower beams 22, 33, the step 45 of the support member 40 is directly brought into contact with the upper beam 22 and the lower beam 33. The support member 40 can be easily adjusted to a predetermined position with respect to each of the beams 22 and 33 so that the surface of the joint member 54 attached to 41 and the surface of each inner wall panel 53 are continuous. The productivity and workability of the units 6 and 7 can be improved.

Further, the joint member 54 has a dimension from the lower end of the face material 53B of the building unit 10 to the upper end of the face material 53B of the building unit 8, and extends along the longitudinal direction of each of the beams 22, 33. Is formed in a substantially rectangular shape, and the surface thereof is continuously arranged on the inner wall panel 53 of each of the building units 8 and 10.
The joints of the building units 8, 10 arranged vertically adjacent to each other can be concealed easily and quickly, and the construction work of the building units 6, 7 can be performed more easily.

Further, the unit-type building 1 is formed by combining the building units 6 and 7 in the vertical direction, and the atrium 12 is formed inside the unit-type building 1, so that it can be adjusted when manufacturing the building units 6 and 7 in a factory or the like. Since the material can be eliminated and the productivity can be improved, the work period until the unit-type building 1 is formed at the construction site or the like can be shortened accordingly, and the construction work of the atrium 12 can be performed in a short time. .

It should be noted that the present invention is not limited to the above-described embodiment, but includes other configurations that can achieve the object of the present invention, and the following modifications are also included in the present invention.
For example, in the above embodiment, the support member 40 is
2. The lower beam 33 is formed in a piece shape so as to be attachable at predetermined intervals along the longitudinal direction of the lower beam 33. However, the present invention is not limited to this. For example, as shown in FIG. 22, the lower beam 33 may be formed to be long so that it can be attached over the entire length along the longitudinal direction. Support member 40
Is formed so as to be attachable over the entire length along the longitudinal direction of each of the upper beam 22 and the lower beam 33. For example, the joint member 54 and the like are attached to the web 41 of the support member 40 by nailing or the like. In this case, it is not necessary to attach the support member 40 while checking the position thereof, and it is possible to nail the web 41 at an arbitrary position.
4 and the like can be easily fixed, and the productivity and workability of the building units 6 and 7 can be improved.

In the above-described embodiment, the joint member 54 has a dimension from the lower end of the face material 53B of the building unit 10 to the upper end of the face material 53B of the building unit 8, and the inner wall panel of each building unit 8, 10 Although the surface is continuously arranged on 53, the present invention is not limited to this. For example, a joint member 54 is attached to each of the building units 8 and 10 so as to be continuous with the inner wall panel 53. When the members 10 are adjacent to each other in the up-down direction, the joint members 54 may be arranged so as to be continuous. In this way, since each joint member 54 can be attached at a factory or the like, the on-site construction work can be reduced correspondingly. Further, in the embodiment, each beam 22,
Although the joint member 54 having the same dimension as the longitudinal direction is used along the longitudinal direction of the beam 33, the present invention is not limited to this. A plurality of joint members having a size smaller than the size may be used. Further, in the above-described embodiment, the support member 40 is attached to all of the four beams 22 and 33 facing the atrium 12, but is not limited thereto.
The support member 40 may be attached to some of the four beams, and the number of beams to which the support member 40 is attached may be determined as appropriate in consideration of the size of the blow-through 12 and the like.

Further, in the above embodiment, the support member 40
The step size L1 of the step portion 45 formed in the upper beam 2
2. Although the thickness L2 is the same as the thickness L2 of the lower beam 33, the invention is not limited thereto.
The thickness L2 of each of the upper beam 22 and the lower beam 33 may be smaller than the step size L1 of No. 5. That is, when the thickness dimension L2 of each of the upper and lower beams 22, 33 is smaller than the step dimension L1 of the step portion 45 formed on the support member 40, the lower surface 45B of one flange 43 of the support member 40. A separate member for height adjustment is mounted on the upper surface, and the surface of one flange 43 on which the step portion 45 of the support member 40 is formed, and the flanges 22 of the upper and lower beams 22, 33 abutting on the one flange 43.
What is necessary is just to make the surface of B and 33B flush. At this time, if several types of separate members corresponding to the thickness L2 of the upper beam and the lower beam of each building unit are manufactured, only one type of common support member need be manufactured. However, the step size L1 of the step portion 45 formed on the support member 40, the upper beam 22, the lower beam 3
If the thickness L2 of the third unit is the same, there is no need to provide a separate member, the number of components can be reduced, and the costs of the building units 6 and 7 can be reduced.

The support member 40 of the present invention is not limited to the case where the support member 40 is provided at the seam where the blow-through 12 is formed. Alternatively, the present invention may also be used in a case where a joint member 54 is attached to conceal a gap between the entrance-soil portion made of concrete and the inner wall panel 53 of the unit, that is, a frame at the lower edge portion of the unit.

Further, the support member 40 of the present invention is not limited to the case where it is used for the unit-type building 1 composed of a plurality of building units 6 and 7; Can also be used.

[0046]

As described above, according to the support member of the present invention, a step is formed on at least one of the flanges extending from both ends of the web of the support member, and this step is formed. By providing the surface of one of the formed flanges and the surface of the beam abutting on one of the flanges flush, adjustment materials can be eliminated, and productivity and workability of building units and framed buildings can be reduced. There is an effect that it can be improved. Further, according to the building unit of the present invention, since the surfaces of the inner wall panel and the joint member are continuous, there is an effect that a blow-through can be easily formed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a part of a unit building according to an embodiment of the present invention.

FIG. 2 is a perspective view illustrating a framework of upper and lower floor building units according to the embodiment of the present invention.

FIG. 3 is a perspective view showing an attachment structure between a beam and a support member according to an embodiment of the present invention.

FIG. 4 is a sectional view taken along the line IV-IV in FIG.

FIG. 5 is an enlarged exploded sectional view showing a thickness dimension of a beam and a step dimension of a support member.

FIG. 6 is a perspective view showing a modified example of the present invention, showing an attachment structure between a beam and a support member.

FIG. 7 is a cross-sectional view showing a joint portion between an upper-floor building unit and a lower-floor building unit in a conventional atrium.

[Explanation of symbols]

 12 Blowhole 22, 32 Upper beam 23, 33 Lower beam 22A, 33A Opening 22B, 33B Flange 40 Support member 41 Web 42 Flange 43 One flange 45 Step 53 Inner wall panel 54 Joint member L1 Step dimension L2 Thickness dimension

Claims (6)

[Claims] 1. A support member to be fitted into an opening of a beam having an opening on a side, the support member having a web and flanges extending from both ends of the web, and having a substantially U-shaped cross section. At the same time, a step is formed on at least one of the flanges extending from both ends of the web, and the surface of the one flange on which the step is formed contacts the one flange. With the surface of the beam,
A support member provided on the same surface. 2. The support member according to claim 1, wherein the support member is formed in a piece shape so that a plurality of pieces can be attached at predetermined intervals along a longitudinal direction of the beam. 3. The support member according to claim 1, wherein the support member is formed to be long so as to be attachable over the entire length along the longitudinal direction of the beam. 4. The support member according to claim 1, wherein a step size of the step portion is the same as a thickness of the beam. 5. A building unit comprising a framework including four pillars and a plurality of beams spanned between upper ends and lower ends of the four pillars, wherein the building unit includes: A support member according to any one of claims 1 to 4 is provided on at least a part of the beams, and the support member is provided on a surface of one of the flanges on which a step portion of the support member is formed and on the one of the flanges. An inner wall panel is abutted on the surface of the contacting beam, and a joint member for concealing the beam and the supporting member is attached to the web of the support member, and the inner wall panel and the joint member have surfaces thereof. Building unit characterized by being continuous. 6. The building unit according to claim 5, wherein the building unit can be arranged adjacent to another building unit arranged vertically, and the joint member is connected to an inner wall panel of the adjacent other building unit. A building unit characterized in that it can be arranged continuously.