JP2002021189A - Unit building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a unit building capable of sufficiently assuring a rigidity of a reinforcement beam against vertical load without increasing the weight of the reinforcement beam and simplifying the structure of a connection portion between connection members and the reinforcement beam. SOLUTION: This unit building comprises a tubular reinforcement beam 70 having a side face in proximity to the side face of the ceiling beam 52A of a building unit for large space 20B and connection members 72 connected to the building unit for large space 20B disposed on both sides of the reinforcement beam 70. Since the side face of the reinforcement beam 70 comes in proximity to the side face of the ceiling beam 52A of the building unit for large space 20B, the dimensions between the connected portions of the connection members 72 connected to the building unit for large space 20B and the side face of the reinforcement beam 70 are smaller than those when platy reinforcement beam is used. Thus, the connection portions between the reinforcement beam 70 and the connection members 72 must not be reinforced, and the structure of the connection portions can be simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for forming a large column-free space inside a plurality of box-shaped building units each having a frame in which one of four pillars is omitted. The present invention relates to a unit-type building provided with reinforcing beams.

[0002]

2. Description of the Related Art Conventionally, unit-type buildings constructed by combining a plurality of box-shaped building units manufactured in a factory at a building site have been used. As a building unit forming a unit type building, a building unit having a rectangular parallelepiped frame connected by ceiling beams and floor beams at upper and lower ends of pillars at four corners is generally used. The frame of the building unit includes a ceiling surface material supported by ceiling beams, a floor surface material supported by floor beams, interior materials such as partition walls for partitioning a room, and an outer wall formed of lightweight cellular concrete or the like. Assembled with According to such a unit-type building, it is possible to complete the building simply by performing the work of assembling the interior material and the outer wall material to the building unit at the factory, and then simply performing the joining work of the building unit. Therefore, there is a merit that the work on the construction site is greatly reduced and the construction work can be completed in a short time.

In such a unit-type building, one of the four pillars provided on the frame of the building unit is used to form a large space without pillars, such as a large living room, inside the building. May be omitted. At this time, if one pillar is omitted, the rigidity of the building unit is reduced, and the load of the building unit or the like placed above cannot be supported. For this reason, a reinforcing beam having a length of two ordinary spans is provided between columns arranged on both sides of the portion where the column is omitted in order to supplement rigidity (particularly). See Japanese Unexamined Patent Publication No. 8-277580).

When building a unit-type building, it is necessary to connect adjacent building units.
In order to connect the building units, a positioning plate protruding from the upper surface of a corner located in close proximity and a single metal plate (hereinafter, referred to as a "shear plate") having holes corresponding to the positioning pins are formed. )) Are used. here,
When forming a large space without pillars inside a unit building, we want to use the shear plate to connect the large space building units, but since the reinforcing beam and the shear plate occupy the same space, However, both cannot be provided at the same time, and it is difficult to use a shear plate to connect building units for large spaces. Therefore, a slit extending along the longitudinal direction is provided in the reinforcing beam, and a plate-like connecting member having a positioning hole is inserted into the slit of the reinforcing beam, as in the case of the shear plate, or a connecting member is provided on a side surface of the reinforcing beam. May be installed. With this configuration, the vertical loads of the building units arranged on both sides of the reinforcing beam are transmitted to the reinforcing beam via the connecting member.

[0005]

However, in a structure using a plate-like reinforcing beam, the connecting portion of the connecting member, which is connected to the building unit, is separated from the side surface of the reinforcing beam, and the vertical load is reduced. In order to transmit, it is necessary to reinforce between the side surface of the reinforcing beam and the connecting member. For this reason, there is a problem that the structure of the joint between the reinforcing beam and the connecting member is complicated.

An object of the present invention is to ensure sufficient rigidity of a reinforcing beam against a vertical load without increasing the weight of the reinforcing beam, and to simplify the structure of a joint between a connecting member and the reinforcing beam. To provide a unit building.

[0007]

The present invention will be described with reference to the accompanying drawings. Referring to the drawings, an ordinary frame formed in a rectangular parallelepiped shape by connecting upper and lower ends of pillars 41 at four corners with a ceiling beam 42 and a floor beam 43.
A plurality of large space building units 20B having a large space frame 50 in which one pillar 51 is omitted from 40 are provided, and corner portions of the large space building units 20B in which the pillars 51 are omitted.
The plurality of large space building units 20B are arranged in a state where the large space building units 20B are brought together, and the reinforcing beams 70 for reinforcing the corners 20D where the columns 51 are omitted are attached to the large space building units.
Unit-type building installed between the sides of the ceiling beam 52A of 20B
10, a reinforcing beam 70 having a side surface adjacent to the side surface of the ceiling beam 52A of the large space building unit 20B is provided as the reinforcing beam 70, and is provided on both sides of the reinforcing beam 70. A connection member 72 connected to the disposed large space building unit 20B is provided.
According to the present invention, if the connecting member 72 is supported at two points on the side walls on both sides of the reinforcing beam 70, the side surface of the reinforcing beam 70 is close to the side surface of the ceiling beam 52A of the large space building unit 20B. The dimension between the joint portion of the joining member 72 joined to the large space building unit 20B and the side surface of the reinforcing beam 70 is smaller than that in the case where a plate-like reinforcing beam is used. Accordingly, it is not necessary to reinforce the joint between the reinforcing beam 70 and the joint member 72, and the structure of the joint is simplified. Also, even if the beam back and width of the reinforcing beam 70 are sufficiently secured,
Since the inside of the reinforcing beam 70 is hollow, an increase in the weight of the reinforcing beam 70 is avoided.

In the above, it is desirable that the reinforcing beam 70 is formed in an elongated rectangular shape in cross section. The width W of the reinforcing beam 70 is set to the large space building unit 20.
If the size is set in accordance with the gap formed between B, the reinforcing beam 70 is inserted into the gap between the large space building units 20B without any gap, and the ceiling beams arranged on both sides of the reinforcing beam 70 The beam 52A and the reinforcing beam 70 are integrated to form a large rigid beam, which prevents deformation of the ceiling beam 52A due to vertical load from the upper floor, so-called falling of the beam, and is installed in the large space building unit 20B. Ceiling and floor hardly bend.

The reinforcing beams 70, 73A to 73G include:
It is formed by joining a pair of long members 74 formed in a C-shaped cross section with their concave portions facing each other, or formed from an integrally molded cylindrical member having a rectangular cross section. Both can be adopted. If such long reinforcing beams 70, 73A to 73G are used, for example, when forming an upper floor with a particle board, the reinforcing beams 70, 73A to 73G are used.
Floor beams 43A and reinforcing beams 70 and 73A arranged on both sides of
By striking the particle board on all of the three members 〜73G, the three members of the reinforcing beams 70, 73A to 73G and the floor beam 43A are further integrated, and the rigidity of the integrated large beam can be further improved.

Further, the reinforcing beam 70 has a slit 71B formed at a position corresponding to the corners 20C and 20D of the large space building unit 20B. Extending along the direction, and the connecting member
It is preferable that the connecting member 72 protrude from both side surfaces of the reinforcing beam 70. Since such connecting members 72 are provided so as to protrude from both side surfaces of the reinforcing beam 70, the ordinary building units 20A and 30A are connected to each other as a connecting structure for connecting adjacent large space building units 20B with the connecting members 72. The same connection structure as that described above can be adopted, and the connection work of the large space building unit 20B can be easily performed in the same manner as the connection work of the ordinary building units 20A and 30A.

Further, the connecting member 72 is a building unit
It is desirable to use a normal shear plate that connects 20A to each other. In this way, a normal shear plate for connecting the building units 20A can be used as the connecting member 72, so that the conventional building units 20A and 2A can be used.
It is not necessary to change the connection structure of 0B at all, and it is not necessary to separately manufacture a connection member 72 dedicated to the reinforcing beam 70,
The manufacturing efficiency of the building units 20A, 20B and the connecting members 72 is not impaired.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a unit-type building 10 according to the present embodiment. This unit building 10
Has a building body 12 formed on a foundation 11, and a roof 13 formed on the building body 12. The building body 12 is a building unit formed in a box shape.
It is formed by combining a plurality of 20, 30.

On the first floor of the unit building 10, there are provided building units 20A and 20B, which are lower-floor building units. Specifically, the first floor of the unit building 10 is shown in FIG.
As shown in FIG. 5, five building units 20A arranged in an L-shape along the outer peripheral edge of the building body 12, and four building units 20A arranged in the corners of the L-shape formed by the building unit 20A. And the building unit 20B. Returning to FIG. 1, a building unit 30A, which is an upper floor building unit, is provided on the second floor of the unit building 10.

As shown in FIG. 3, the lower-floor building unit 20A and the upper-floor building unit 30A have a rectangular parallelepiped frame having a ceiling beam 42 and a floor beam 43 connecting upper and lower ends of pillars 41 at four corners. It is a normal building unit with 40. Among these, the pillar 41, the ceiling beam 42, and the floor beam 43 are connected via a joining member 44, respectively. The joining member
44, a capital connection member 44 arranged on the capital side of the column 41
A and a column base joint member 44B arranged on the column base side of the column 41 are provided. A positioning hole (not shown) into which the positioning pin 54C for determining the position of the building unit 20B disposed adjacent in the horizontal direction is inserted into the column base joint member 44B.
And an insertion hole 44C through which a fastener 81 composed of a bolt and a nut for connecting the adjacently arranged building units 20B and 30A to each other is formed (see FIG. 6). As the ceiling beams 42 of the frame 40, short-side ceiling beams of different lengths
Two types of floor beams 42A and long side ceiling beams 42B are provided. As floor beams 43 of the frame 40, two types of short side floor beams 43A and long side floor beams 43B having different lengths are provided. Between the opposed long side ceiling beams 42B, ceiling small beams (not shown) are bridged to support the ceiling panel, and between the opposed long side floor beams 43B, a floor (not shown) is provided. A plurality of joists are bridged to support a floor material such as a particle board to be formed.

On the other hand, in FIG. 2, the four large space building units 20B indicated by dashed lines are
As shown in (1), each one of the corners 20D is arranged adjacent to each other in a state where they are brought together. Building Unit 20
B is a pillar from frame 40 of normal lower-floor building unit 20A
51 is omitted, that is, the aligned corners 20D
Are omitted, and a large space building unit including a substantially rectangular parallelepiped large space frame 50 having three pillars 51 is provided. As a result, a large large space 60 is formed in the central part of the four building units 20B, where there is no protrusion such as the pillar 51 between the ceiling and the floor. Large space building unit
The column 51, the ceiling beam 52, and the floor beam 53 of the 20B are connected via joining members 54, respectively. As the joining member 54, a column capital joint member 54A arranged on the column capital side of the column 51 and a column base joint member 54B arranged on the column column side of the column 51 are provided. The stigma joint 54A includes a positioning pin 54C for determining the position of the horizontally adjacent building unit 20B, and a bolt and nut for interconnecting the adjacent building units 20B and 30A. Become a fastener
An insertion hole 54D through which 81 is inserted is formed (see FIG. 6).

The pillar 51 and the ceiling beam 52 of the building unit 20B
The floor beam 53 and the building beams 20A, 30A are connected to each other via a joining member 54, similarly to the building units 20A, 30A. As the ceiling beam 52 of the large space frame 50, short side ceiling beams having different lengths are used.
52A and a long side ceiling beam 52B are provided. As the floor beam 53 of the large space frame 50, short side floor beams having different lengths are provided.
There are two types, 53A and long-side floor beam 53B. Such pillars 51 are omitted and the corners are brought together
Pillars located at corners 20C on both sides with 20D in between
A reinforcing beam 70 is bridged between 51 to supplement the rigidity.

The reinforcing beam 70 is used to reinforce the ceiling beam 52A of the large space building unit 20B from which the column 51 is omitted, and has a cylindrical shape extending along the short side direction of the large space building unit 20B. It is a member. The reinforcing beam 70 is a long member having a length dimension for connecting the columns 51 arranged at the corners 20C on both sides of the corner 20D.

As shown in FIG. 5, the reinforcing beam 70 is formed in an elongated rectangular shape in cross section, and is integrally formed of a seamless long member. On the lower end side of the reinforcing beam 70,
A plurality of insertion holes 71A for inserting piping of an air conditioner or the like are formed at predetermined intervals. Also, the reinforcing beams 70
A slit extending horizontally along the longitudinal direction of the reinforcing beam 70
There are multiple 71Bs. These slits 71B are
It is formed at a position corresponding to the corner 20D of the large space building unit 20B and the corners 20C on both sides of the corner 20D. A connection member 72 is inserted into each slit 71B.

As shown in FIG. 7, the beam height H of the reinforcing beam 70 is a dimension that fits from the upper surface of the floor beam 43A of the upper floor building unit 30A to the lower surface of the ceiling beam 52A of the large space building unit 20B. It has become. Here, the reinforcing beam 70 does not protrude upward from the upper surface of the floor beam 43A, and the lower surface thereof
Since it does not protrude downward from 52A, the floor material placed on the upper surface of floor beam 43A is at the same height level as the floor material of the other building units 30A, and is provided on the lower surface of ceiling beam 52A. The ceiling panels used are at the same height level as the ceiling panels of the other building units 20A. The width dimension W of the reinforcing beam 70 is substantially the same as the gap formed between the adjacent large space building units 20B. Thus, the side surface of the reinforcing beam 70 is in contact with the side surface of the ceiling beam 52A of the adjacent large space building unit 20B.

Returning to FIG. 5, the connection member 72 is formed from a flat plate. The connecting members 72 are inserted through the slits 71B and protrude from both side surfaces of the reinforcing beam 70.
The connection members 72 are supported at two points on the side walls on both sides of the reinforcing beam 70. The connection member 72 is movable with respect to the reinforcing beam 70 in the width direction of the reinforcing beam 70. As shown in FIG. 6, the connecting member 72 includes a large space building unit 20B.
A plurality of positioning holes 72A, through which a plurality of positioning pins 54C provided on the upper surface of the stigma joint member 54A are inserted, a large space building unit 20B and a large space building unit 20B.
An insertion hole 72B for inserting a fastener 81 that interconnects the upper-floor building unit 30A placed on B is formed. Here, the connecting member 72 is the lower-floor building unit 20
It is a normal shear plate that interconnects A and the upper-floor building unit 30A. The thickness of the connection member 72 is the same as the thickness of a normal shear plate.

The four ceiling beams 52A of the adjacent large space building unit 20B are joined together with the four floor beams 43A of the adjacent upper floor building unit 30A together with the upper floor building unit 30A. The column base connecting member 44B of the upper floor building unit 30A, the connecting member 72, and the fastener 81 penetrating the column head connecting member 54A of the large space building unit 20B are connected to each other. In particular, the gathered portions of the four ceiling beams 52A are joined by four fasteners 81 at the central portion of the reinforcing beam 70, that is, the upper portion of the corner portion 20D, and are firmly integrated. . The corner 20 of the building unit 20B
In D, a temporary column 80 as a transportation jig is provided detachably,
During transportation, the column-base connecting member 54B, which is a connecting portion of the floor beams 53A, 53B, and the column-top connecting member 54A, which is a connecting portion of the ceiling beams 52A, 52B, are connected.

Next, a procedure for forming a large large space 60 in which no protrusions such as the pillars 51 exist will be described. First, the building units 20, 30 and the reinforcing beams 70 are manufactured at the factory, and then transported to the building site. When manufacturing the building units 20 and 30 and the reinforcing beams 70, temporary columns 80 are provided at the corners 20D in order to prevent deformation of the building unit 20B during transportation. Then, as shown in FIG. 8, these building units 20B are arranged adjacently in a plan view, and the reinforcing beams 70 are inserted into gaps formed between the adjacent short side ceiling beams 52A.

At this time, as shown in FIG. 6, the positioning pins 54C of the adjacent large space building units 20B are located at the corners 20D and the corners 20C on both sides of the corners 20D.
Into the positioning hole 72A of the connecting member 72,
The large space building unit 20B is positioned.

Thereafter, as shown in FIG. 9, the upper floor building unit 30A is placed on the large space building unit 20B. Thus, the reinforcing beam 70 is disposed between the adjacent short-side floor beams 43A. Then, the upper-floor building unit 30A and the large-space building unit 20A are connected to each other with the fasteners 81, whereby the upper-floor building unit 30A and the large-space building unit
20B and the reinforcing beam 72 are integrated. After that, when the temporary columns 80 are removed, a large large space 60 is formed between the ceiling and the floor, where no projections such as the columns 51 exist.

According to this embodiment, the following effects can be obtained. That is, the connecting member 72 is supported at two points on the side walls on both sides of the reinforcing beam 70, and the side surface of the reinforcing beam 70 is brought into contact with the side surface of the ceiling beam 52A of the large space building unit 20B. The dimension between the joint portion to be joined to the large space building unit 20B and the side surface of the reinforcing beam 70 is smaller than when using a plate-like reinforcing beam. Accordingly, it is not necessary to reinforce the joint between the reinforcing beam 70 and the joint member 72, and the structure of the joint can be simplified. Further, even if the beam height and the width of the cylindrical reinforcing beam 70 are sufficiently ensured, an increase in the weight of the reinforcing beam 70 can be avoided because the inside of the reinforcing beam 70 is hollow.

Since the width W of the reinforcing beam 70 is set to be substantially the same as the gap between the large space building units 20B, the reinforcing beam 70 is inserted into the gap between the large space building units 20B without any gap. As a result, the ceiling beams 52A and reinforcement beams 70 arranged on both sides of the reinforcement beams 70 are integrated to form a large rigid beam, and the deformation of the ceiling beams 52A due to the vertical load from the upper floor, the so-called beam Falling is prevented, and the ceiling and floor provided in the large space building unit 20B are less likely to bend.

Furthermore, since the long reinforcing beams 70 are integrally formed, when forming the floor of the upper floor with the particle board, three members of the floor beams 43A and the reinforcing beams 70 arranged on both sides of the reinforcing beams 70 are used. By striking the particle board on all, the three members of the reinforcing beam 70 and the floor beam 43A are further integrated, and the rigidity of the integrated large beam can be further improved.

Further, since the connecting members 72 are provided so as to protrude from both side surfaces of the reinforcing beam 70, a connecting structure for connecting the adjacent large space building units 20B by the connecting members 72 is as follows.
The same connection structure as that for connecting the normal building units 20A and 30A can be adopted.
Similar to the connection work of A and 30A, the large space building unit 20B
Can be easily performed.

Further, since a normal shear plate for connecting the building units 20A can be used as the connecting member 72, there is no need to change the connecting structure of the conventional building units 20A and 20B at all. It is not necessary to separately manufacture the 72, and the manufacturing efficiency of the building units 20A and 20B and the connecting member 72 is not impaired.

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 includes the following modifications. That is, the reinforcing beam is not limited to the one integrally formed of a seamless long member, but a pair of long members having a C-shaped cross section are joined in a state where the concave portions are opposed to each other. It may be of a type. At this time, as a joint type reinforcing beam,
As shown in FIG. 10, for example, a reinforcing beam 73A in which ends of long members 74 formed in a C shape are joined, a reinforcing beam 73B in which the long members 74 are joined alternately, Long material 74 and long material 75 whose size is slightly smaller than long material 74
The reinforcing material 73C, which is joined with the staggered and
Reinforced beams 73D joined via 76 can be adopted. The arrangement position of the joint material 76 is arbitrary, for example, as shown in FIG.
As shown in (D) to (G), the upper surface and the lower surface of the long material 74, the opposed inner peripheral surfaces of the long material 74, the upper and lower inner peripheral surfaces of the long material 74, the long material 74 And the inner peripheral surface on the upper surface side.

As a reinforcing beam, one corner portion 20D
In addition to reinforcing the four large space building units 20B arranged adjacent to each other in a state where they are brought together, FIG.
As shown in FIG. 2, two large-space building units 20B in which the long sides are in contact with each other and the building units 20E are arranged on the short sides may be reinforced. Further, the connecting member is not limited to one that is inserted into the slit and is provided on the reinforcing beam so as to be movable in the horizontal direction with respect to the reinforcing beam, and is fixed to the reinforcing beam by welding while being inserted into the slit. Or a stiffener fixed to the side surface of the reinforcing beam.

Further, as the connecting member, a connecting portion formed of a single metal plate and connected to each of the column heads of the large space building unit 20B arranged on both sides of the reinforcing beam 70 is integrated. Not only those, as shown in FIG.
Large space building unit 20B arranged on both sides of reinforcing beam 70
Connection member where the connection part is provided separately on the left and right ceiling beams 52A
72C is acceptable. In the case where the joining members 72C provided separately on the left and right are employed, the joining members 72C pass through one side wall of the reinforcing beam 70 at one end and the inner surface of the reinforcing beam 70 at the other end, as shown in FIG. It is desirable to be fitted into the groove 77A of the locking member 77 provided at the bottom.

[0033]

According to the unit type building of the present invention, the following effects can be obtained. That is, according to the unit-type building of claim 1, when the connecting member is supported at two points on the side walls on both sides of the reinforcing beam, the side surface of the reinforcing beam is close to the side surface of the ceiling beam of the large space building unit. Therefore, the dimension between the joint portion of the joining member joined to the large space building unit and the side surface of the reinforcing beam is smaller than that in the case where the plate-like reinforcing beam is used. Accordingly, it is not necessary to reinforce the joint between the reinforcing beam and the joining member, and the structure of the joint can be simplified. Further, even if the beam height and the width of the reinforcing beam are sufficiently ensured, an increase in the weight of the reinforcing beam can be avoided because the inside of the reinforcing beam is hollow.

According to the unit-type building of the second aspect, if the width dimension of such a reinforcing beam is set to a dimension corresponding to the gap formed between the large space building units,
The reinforcing beams are inserted into the gaps between the large space building units without any gap, the ceiling beams and reinforcing beams arranged on both sides of the reinforcing beams are integrated, and a large rigid beam is formed. Deformation of the ceiling beam due to a vertical load from above, that is, so-called falling of the beam, is prevented, and the ceiling and floor provided in the large space building unit are less likely to bend.

Further, according to the unit-type building according to the third aspect, if such a long reinforcing beam is adopted, for example, when forming the floor of the upper floor with a particle board,
By hitting the particle board on all three members of the floor beam and the reinforcement beam arranged on both sides of the reinforcement beam, the three members of the reinforcement beam and the floor beam are further integrated, and the rigidity of the integrated large beam can be further improved. .

According to the unit-type building of the fourth aspect, if such a long reinforcing beam is employed, for example, when forming an upper floor with a particle board,
By hitting the particle board on all three members of the floor beam and the reinforcement beam arranged on both sides of the reinforcement beam, the three members of the reinforcement beam and the floor beam are further integrated, and the rigidity of the integrated large beam can be further improved. .

Furthermore, according to the unit-type building of the fifth aspect, since such connecting members 72 are provided so as to protrude from both side surfaces of the reinforcing beam, adjacent large space building units are connected by the connecting members. The same connection structure as that for connecting ordinary building units can be adopted as the connection structure for connecting large building units, as in the connection work for ordinary building units. .

According to the unit-type building according to the sixth aspect, since a normal shear plate connecting the building units can be used as a connecting member, it is not necessary to change the connecting structure of the conventional building unit at all. This eliminates the need to separately manufacture a connecting member dedicated to the reinforcing beam, and does not impair the manufacturing efficiency of the building unit and the connecting member.

[Brief description of the drawings]

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

FIG. 2 is a schematic plan view of a first floor portion according to the embodiment.

FIG. 3 is a perspective view showing a frame of the building unit according to the embodiment.

FIG. 4 is an exploded perspective view showing the large space building unit according to the embodiment.

FIG. 5 is an exploded perspective view showing a reinforcing beam according to the first embodiment.

FIG. 6 is an exploded perspective view showing a joint portion of the building unit according to the embodiment.

FIG. 7 is a sectional view showing a joint portion of the building unit according to the embodiment.

FIG. 8 is a diagram for explaining a method of installing the large space building unit according to the embodiment.

FIG. 9 is a diagram for explaining a method of joining building units according to the embodiment.

FIG. 10 is a sectional view showing a modification of the present invention.

FIG. 11 is a schematic plan view showing another modified example of the present invention.

FIG. 12 is a plan view showing still another modified example of the present invention.

FIG. 13 is an elevation view showing a main part of the modification shown in FIG. 12;

[Explanation of symbols]

 10 Unit type building 20A, 30A Building unit 20B Large space building unit 40 Frame 41 Pillar 42 Ceiling beam 43 Floor beam 50 Large space frame 51 Column 52 Ceiling beam 53 Floor beam 70, 73A to 73G Reinforcement beam 71B Slit 72 Connecting member

Claims (6)

[Claims] A plurality of large space buildings having a large space frame in which one pillar is omitted from a normal frame formed in a rectangular parallelepiped shape by connecting upper and lower ends of pillars at four corners with ceiling beams and floor beams. A plurality of large-space building units are arranged in a state where the corners where the pillars of these large-space building units are omitted are arranged, and the corners where the pillars are omitted. Is a unit-type building in which a reinforcing beam for reinforcing the ceiling beam of the large space building unit is provided between the side surfaces of the ceiling beam of the large space building unit. A unit type building, comprising: a reinforcing beam having a side surface close to a side surface; and a connection member connected to the large space building unit disposed on both sides of the reinforcing beam. 2. The unit-type building according to claim 1, wherein said reinforcing beam is formed in an elongated rectangular shape in cross section. 3. The unit-type building according to claim 1, wherein the reinforcing beam is formed by joining a pair of long members having a C-shaped cross section with their concave portions facing each other. Unit-type building characterized by being formed by doing. 4. The unit-type building according to claim 1, wherein the reinforcing beam is formed of a tubular member having a rectangular cross section and integrally formed. 5. The unit-type building according to claim 1, wherein the reinforcing beam has a slit formed at a position corresponding to a corner of the large space building unit. The unit-type building, wherein the slit extends along the longitudinal direction of the reinforcing beam, and the connecting member is inserted therein, and the connecting member protrudes from both side surfaces of the reinforcing beam. 6. The unit-type building according to claim 1, wherein the connection member is obtained by diverting a normal shear plate for connecting building units as it is. Unit building.