JP3474064B2 - Unit building and its construction method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit building and its construction method.

[0002]

2. Description of the Related Art Generally, a frame unit building is constructed by adjacently installing building units in which columns, floor beams and ceiling beams are joined in a box shape. Therefore, in a framed unit building, there are always pillars at the four corners of each building unit, and as a result,
A pillar (plurality of pillars) stands in the center of the unit building where the corners of multiple building units are placed in abutment with each other.
It is not possible to form a wide and continuous living room space that is not blocked by pillars.

On the other hand, as a unit building in which pillars can be omitted at the abutting portion of the building unit, there are Japanese Patent Publication No. 8-16350 (conventional example 1) and Japanese Patent Laid-Open No. 6-185122 (conventional example 2). Some are listed.

In the conventional example 1, temporary columns are provided at one corner of the column omitting the columns defined in the building unit, and the temporary column portions of the two building units are arranged to abut each other, and then the temporary columns are removed. Remove. Then, a reinforcing frame extending along the lower side of the ceiling beam spanned between the pillars is erected on the pillars located on both sides of the abutted portion where the temporary pillars of the two building units are removed. It is a thing.

In the conventional example 2, provisional columns are provided at each of the one column omission corners defined for each of the four building units, and the provisional column portions of these four building units are arranged to face each other. , The four ceiling beams intersecting with each other at the column omitted joint are integrally connected by one reinforcing connecting tool, and then the temporary columns are removed.

[0006]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
Has the following problems. (1) The reinforcement frame cannot be installed without removing the temporary columns. For this reason, the strength of the building unit is extremely reduced during the period from the removal of the temporary columns to the completion of the installation of the reinforcing frame, and there is a risk that the ceiling beam may collapse from the corners of the columns where the temporary columns are removed. . That is, the workability is poor.

(2) The reinforcing frame extends below the ceiling beam. Therefore, the reinforcing frame projects below the ceiling beam, and the ceiling height under the beam becomes low.

Further, the conventional example 2 has the following problems. (1) The pillars are omitted at the abutting portions of the four building units, and the ceiling beams that intersect each other at the joints where the pillars are omitted are simply connected together by a reinforcing connecting tool. For this reason, the ceiling structure strength of this unit building is 2
It cannot be more than the sum of the sectional performance of individual ceiling beams. Therefore, there is a limit to the expansion of the ceiling span where columns are omitted, and there is a limit to the expansion of a wide continuous space where columns are omitted.

An object of the present invention is to provide a unit building in
Without lowering the ceiling height under the beam, a wide continuous space without pillars will be formed to improve workability.

[0010]

According to a first aspect of the present invention, in a unit building constructed by combining a plurality of building units, at least three building units are arranged from a projected corner portion that is substantially right angle in a plan view. Having a first corner
The first corners of each building unit are abutted against each other, and the sides forming the first corner are arranged so as to form a cross to form a first building unit group. To correspond to the formed cross-shaped side,
In the unit building, a beam having a cross shape in plan view in which the first beam and the second beam are detachably orthogonal to each other is arranged on the ceiling portion of the first building unit group.

According to a second aspect of the present invention, in a unit building constructed by adjacently installing building units in which columns, floor beams and ceiling beams are joined in a box shape, the unit buildings are arranged in parallel on one side. A first building unit group including two building units and two building units arranged in parallel on the other side, and the building units of the first building unit group are projecting portions that are substantially right angles in a plan view. The pillar omitting corners of each building unit are abutted against each other, and the sides forming the pillar omitting corners are arranged so as to form a cross shape. A reinforcing beam having a cruciform shape in a plan view in which a first reinforcing beam and a second reinforcing beam are detachably orthogonal to each other in a cross-shaped adjacent building unit gap formed by the first portion and the ceiling beam , Of the second reinforcement beam
Install them so that they are sandwiched between the ceiling beams .
Both ends of at least one of the reinforcing beam and the second reinforcing beam are arranged around each pillar of two building units adjacent to each other on one side and two building units adjacent to each other on the other side. Connected around each pillar of, the central portion of the first and second reinforcing beams,
It is a unit building that is connected to the corners of each of the four building units where columns are omitted.

According to a third aspect of the present invention, in a unit building constructed by adjacently installing building units in which columns, floor beams and ceiling beams are joined in a box shape, the unit buildings are arranged in parallel on one side. Two building units and one of the two building units on the other side in series 1
It has a first building unit group having a total of three building units provided with one building unit, and the building units of the first building unit group have a pillar omission corner portion which is a projecting corner portion that is substantially right angle in a plan view. It has, and the pillar omission corners of each building unit are abutted against each other, and the sides that form the pillar omission corners are arranged so as to form a cross shape, and are formed by the abutted pillar omission corners and ceiling beams. The first and second reinforcing beams having a cross shape in a plan view in which the first reinforcing beam and the second reinforcing beam are detachably orthogonal to the space between the adjacent cross-shaped building units and the side surface of the ceiling beam . Each reinforcing beam is a ceiling beam
The reinforcing beam is installed so as to be sandwiched between the first reinforcing beam and the second reinforcing beam.
The pillars of two building units adjacent to each other on one side of the building unit group and the pillars of the building unit on the other side are connected to each other, and the central portion of each of the first and second reinforcing beams is 3 It is a unit building that is connected to the corners of each building unit where each pillar is omitted.

According to a fourth aspect of the present invention, the unit building includes a lower floor building unit group and an upper floor building unit group having a plurality of building units mounted on the lower floor building unit group. , The lower-floor building unit group has the first building unit group having a corner with omitted columns, and the height of the reinforcing beam is extended to the floor beam of the building unit of the upper-floor building unit group for reinforcement. The beam is connected to a building unit of an upper floor building unit group at the extending portion thereof.
It is a unit building according to any one of 3 and 3.

According to the fifth aspect of the present invention, the unit building includes a lower floor building unit group and an upper floor building unit group having a plurality of building units mounted on the lower floor building unit group. , The lower-floor building unit group has the first building unit group having pillar omitted corners, and the upper-floor reinforcing beam is provided in the gap between the ceiling beams of the building units of the adjacent upper-floor building unit group to reinforce the upper floor. The unit building according to any one of claims 2 to 4, wherein a beam is connected to each of the columns to which the ceiling beam of the upper floor building unit is joined.

The present invention according to claim 6 provides the invention according to claims 2 to 5.
In the method of constructing a unit building according to any one of
As a building unit where columns are omitted, a temporary column is removable at the corners where columns are omitted.Temporary columns are provided until the reinforcement beams are connected to the building unit, and after the reinforcement beams are connected, It is a method of constructing a unit building characterized by removing pillars.

The present invention according to claim 1 has the following effects. First butted together in a unit building
Since it is a unit building in which beams in a cross shape in plan view are arranged on the ceiling portion of the first building unit group so as to correspond to the sides of the cross shape formed by the corners, the pillars are provided at the first corners. When installed, the ceiling structure strength of the unit building can be increased with the cross beam. When the pillar is omitted at the first corner, the cross-shaped beam can secure the strength of the ceiling structure of the unit building. Therefore, in this case, a wide continuous space without columns can be formed. In addition, the cross shape
Is the beam so that the first beam and the second beam are detachably orthogonal to each other?
It is convenient to remove and transport.

According to the invention of claim 2, the following (1)
, (2) has the effect. (1) In a unit building, it was made into a cross shape in plan view
Each of the first and second reinforcement beams is between the ceiling beams.
Two building units that are installed so as to be sandwiched between two ends of one of the first reinforcing beam and the second reinforcing beam of the cross-shaped reinforcing beam that are adjacent to each other on one side. Connected around each pillar of each of the two building units adjacent to each other on the other side, the central portion of the first and second reinforcing beams are the corners of each of the four building units where the pillars are omitted. It is connected to the. Therefore, the ceiling structural strength of this unit building is the sum of the sectional performance of the ceiling beams of the building unit plus the sectional performance of the reinforcing beams. For this reason, it is possible to greatly expand the ceiling span without pillars and form a wide continuous space without pillars.

(2) The reinforcing beam is installed along the ceiling beam of the building unit. Therefore, the reinforcing beam does not seem to protrude greatly below the ceiling beam, and the ceiling height under the beam is not lowered.

According to the invention of claim 3, the following (1)
, (2) has the effect. (1) In a unit building, it was made into a cross shape in plan view
Each of the first and second reinforcement beams is between the ceiling beams.
Both ends of at least one of the first reinforcing beam and the second reinforcing beam, which are installed so as to be sandwiched between the first and second reinforcing beams, are adjacent to each other on one side of the first building unit group. Is connected around each pillar of the building unit and around the pillar of the building unit on the other side, and the central portion of each of the first and second reinforcing beams is connected to the corner of each of the three building units where the pillar is omitted. ing. Therefore, the ceiling structure strength of this unit building is
This is the sum of the cross-sectional performance of the ceiling beams of the building unit and the cross-sectional performance of the reinforcing beams. For this reason, it is possible to greatly expand the ceiling span without pillars and form a wide continuous space without pillars.

(2) The reinforcing beam is installed along the ceiling beam of the building unit. Therefore, the reinforcing beam does not seem to protrude greatly below the ceiling beam, and the ceiling height under the beam is not lowered.

The present invention according to claim 4 has the following actions. A reinforcing beam for omitting columns of the lower-floor building unit is extended to the floor beam of the upper-floor building unit, and the extended portion is also connected to the upper-floor building unit. Therefore, the ceiling structure strength of the lower-floor building unit without columns is reinforced not only by the cross-sectional performance of the reinforcing beam itself, but also by the floor-beam structural strength of the upper-floor building unit through the reinforcing beam. . Therefore, it is possible to further expand the ceiling span of the lower-floor building unit in which the pillar is omitted and form a wider continuous space in which the pillar is omitted.

[0022]

1 to 9 show an embodiment of the present invention, FIG. 1 is a schematic diagram showing a connecting process of reinforcing beams to a first building unit group, and FIG. 2 is a unit building and building unit. 3A is a side view of the reinforcing beam, FIG. 3B is a plan view of the reinforcing beam, FIG. 4 is a schematic diagram showing the reinforcing structure of the first building unit group, and FIG. 5 is an end of the reinforcing beam. FIG. 6 is a schematic diagram showing a partial connection structure, FIG. 6 is a schematic diagram showing a central connection structure of a reinforcing beam, FIG. 7 is a schematic diagram showing a connecting process of the upper reinforcing beam to the upper building unit group, FIG. 8 (A) The figure is a front view of the upper floor reinforcement beam, (B) is a side view of the same, and FIG. 9 is a schematic view showing the action of the upper floor reinforcement beam.

FIGS. 10 and 11 show another embodiment of the present invention. FIG. 10 is a schematic diagram showing the process of connecting the reinforcing beams to the first building unit group, and FIG. 11 is a schematic diagram showing the connecting structure of the reinforcing beams. It is a figure. FIG. 12 shows another embodiment of the present invention (A)
The figure is a schematic diagram showing the process of connecting the reinforcing beams to the first building unit group, and the figure (B) is a schematic diagram of the building units of the first building unit group.

An embodiment of the present invention will be described with reference to FIGS. (Unit building and building unit) (Fig. 2) As shown in Fig. 2 (A), the unit building 10 is constructed by transporting a plurality of factory-produced standard building units 11 and pillar omitted building units 12 to a construction site and installing them in advance. Installed horizontally and vertically adjacent to the foundation 13 on the lower floor 10A,
The upper floor portion 10B is constructed.

As shown in FIG. 2 (B), the standard building unit 11 includes four square steel pipe columns 21 and four shaped steel floor beams 2.
This is a frame structure in which two and four shaped steel ceiling beams 23 are joined in a box shape. The building unit 11 has a rectangular shape in a plan view,
At four corners, a floor beam 22 intersecting with each other is connected to a lower end of the column 21 by a joint piece 22A, and a ceiling beam 23 intersecting with each other is joined to an upper end of the column 21 by a joint piece 23A. .

As shown in FIG. 2C, one of the four pillars 21 of the standard building unit 11 is omitted in the pillar-eliminating building unit 12 and the pillar 21 is omitted. The omitted corner portion of the pillar 21 is a projected corner portion (first corner portion) that is a right angle in plan view, and is a pillar omitted corner portion 26R.

The column omitting building unit 12 has a column omitting corner portion 2.
In the three corners other than 6R, the floor beams 22 intersecting with each other are joined to the lower ends of the columns 21 by the joint pieces 22A, and the ceiling beams 23 intersecting with each other are joined to the upper ends of the columns 21 by the joint pieces 23A. In the column omission corner portion 26R, the floor beam 22 intersecting with each other is connected to the short column 2 by the joint piece 22B.
4 and the ceiling beams 23 intersecting each other are joined to the short columns 25 by the joint pieces 23B. And
In the pillar omitted building unit 12, the temporary pillar 26 is detachably attached to the pillar omitted corner portion 26R. The temporary column 26 is detachably coupled to the short column 24 and the short column 25 described above by detaching means such as bolts and pins.

(Lower part 10A of the unit building 10)
(FIGS. 1 to 6) However, the unit building 10 is, in a part of the lower floor portion 10A, as shown in FIG. 1, two pillar-eliminating building units 12 and 12 arranged in parallel on one side and the other side. It has a first building unit group including two pillar-free building units 12, 12 arranged in parallel with each other.

Building unit 1 of the first building unit group
2 is a column omission corner portion 26 which is a projecting corner portion that is substantially right angle in a plan view.
The corners 2 of each building unit 12 that have an R
The 6Rs are abutted against each other and are arranged so that the sides forming the pillar-elimination corner portions 26R form a cross shape to form the pillar-elimination joint portion 14. It is assumed that the four pillar-less building units 12 form a wide and continuous living space that is not blocked by the pillars 21. Then, the cross-shaped gap between adjacent building units 12 and 12 (adjacent building unit gap 23R shown in FIG. 6) formed by the pillar omitted corner portions 26R and the ceiling beams 23 is formed into a cross shape in plan view. A reinforcing beam 30 is installed.

As shown in FIG. 3, the reinforcing beam 30 is made of a long plate-like member, and has a cross shape in which a first reinforcing beam 301 and a second reinforcing beam 302 are orthogonal to each other. ,
The second reinforcement beam 302 can be detached from the first reinforcement beam 301 for convenient transportation.

The joint structure of the four pillar-less building units 12 will be described below with reference to FIGS. 4 to 6. As shown in FIG. 4, both ends of the first reinforcing beam 301 are adjacent to each other on one side of each of the two building units 12, 12 around each pillar 21, and on the other side of the two building units. 12 and 12 are connected around each pillar. In the figure, 15 is a lower floor ceiling board, and 16 is an upper floor board. At this time, both ends of the first reinforcing beam 301 are connected to the column 21 through high-strength bolt joining (friction joining) with the ceiling beam 23 and the joint piece 23A using the high-strength bolt 31, as shown in FIG. To be done.

As shown in FIG. 6, both ends of the second reinforcing beam 302 are connected to the ceiling beams 23 of the adjacent building units 12, 12.
23 between the ceiling beams 2 via high-strength bolts 32.
3 is connected.

The central portion of the reinforcing beam 30 where the first reinforcing beam 301 and the second reinforcing beam 302 intersect is connected to the corners of the four building units 12 where the pillars are omitted, as shown in FIG. At this time, the central portion of the reinforcing beam 30 is connected to the short pillar 25 through the joint between the ceiling beam 23 and the joint piece 23B using the high-strength bolt 32.

When the reinforcing beam 30 is connected to the pillar 21 and the short pillar 25 as described above, the temporary pillar 26 which is detachable to the short pillar 25 is still joined to the corner of the pillar omission of each building unit 12. There is. Then, after the reinforcing beam 30 is completely connected to the pillar 21 and the short pillar 25, the temporary pillar 26 is removed from the short pillar 25.

The reinforcing beam 30 is the ceiling beam 2 in which two building units 12, 12 adjacent to each other with the reinforcing beam 30 in between are in contact with each other.
Even the portions where the joint pieces 23A and 23B are not provided with the joints 3 and 23 may be joined using bolts or the like.

(Mounting of the upper floor portion 10B on the lower floor portion 10A of the unit building 10) (FIG. 4) The unit building 10 has the upper floor portion 1 on the lower floor portion 10A.
When mounting 0B, four upper floor standard building units 11 are mounted on the four lower floor pillar-eliminating building units 12 (first building unit group) forming a part of the lower floor portion 10A. be able to. At this time, the four upper-floor building units 11 have the lower end faces of the three columns 21 of the upper-floor building unit 11 at three corners other than the corners of the four lower-floor building units 12 where the pillars are omitted. Three pillars 2 of lower floor building unit 12
1 is placed on the upper end face of the lower floor building unit 12 and coupled, and at the corner of the lower floor building unit 12 where the pillar is omitted, the lower end face of one pillar 21 of the upper floor building unit 11 is placed on the short pillar 25 of the lower floor building unit 12. Place on the end face and combine.

At this time, as shown in FIG. 4, the heights of the reinforcing beams 30 which reinforce the four lower floor building units 12 are set to the floor beams 22 and 22 adjacent to the upper floor building unit 11 (see FIG. 4), and the reinforcing beam 30 is connected to the floor beam 22 of the upper floor building unit 11 and the joint piece 22A by the high-strength bolt 33 at this extending portion. it can.

(Reinforcement of the upper floor portion 10B above the lower floor portion 10A) (FIGS. 7 to 9) The four upper floor standard building units 11 are arranged on the four lower floor pillar-eliminating building units 12 shown in FIG. When mounted as described above, as shown in the drawing, the upper floor reinforcing beam 40 can be provided also between the ceiling beams 23, 23 of the upper floor building unit 11.

As shown in FIG. 8, the upper floor reinforcement beam 40 is made of a long T-shaped member having a T-shaped cross section, and the ceiling beams 23 of the two building units 11 adjacent to each other on one of the left and right sides. , 23 between two building units 11 adjacent to each other on the other side on the left and right.
It is provided across the ceiling beams 23, 23 of.

Each of the both ends and the central part of the upper floor reinforcing beam 40 has a high strength on each of the columns 21 of the two adjacent building units 11 similarly to the both ends of the reinforcing beam 30 shown in FIG. Bolt 4
The ceiling beam 23 using No. 1 and the joint piece 23A are connected to each other.

The upper floor reinforcing beam 40 has ceiling beams 23, 23 which are adjacent to each other between the two building units 11, 11 with the reinforcing beam 40 interposed therebetween, and a portion without the joint piece 23A, a bolt or the like. May be joined together.

According to this, the adjacent building units 11 are integrated by the upper floor reinforcing beam 40 so that the upper floor can be hung via the pillar 21 at the center of the four building units 11 (see FIG. 9 (C)), which reduces the load on the upper floor to the central portion of the four lower floor building units 12 where the pillars are omitted. In the case where the upper floor reinforcement beam 40 is not provided, the reinforcement beam 30 of the lower floor building unit 12, the pillar 21 of the lower floor building unit 12, and the ceiling beam 2
When the connection with 3 is broken due to breakage of the high-strength bolts 31 and 32 (FIG. 9 (A)), the ceiling structure strength of the central portion of the lower building unit 12 where the pillars are omitted decreases, and the upper building unit 1
The floor of No. 1 may fall as shown in FIG. 9 (B). By providing the upper floor reinforcing beam 40, it is possible to prevent the floor of the above-mentioned upper floor building unit 11 from falling.

The operation of this embodiment will be described below. (1) In the unit building 10, both ends of the first reinforcing beam 301 of the cross-shaped reinforcing beam 30 have columns 21 of two building units 12 adjacent to each other on one side of the column omitting joint portion 14. And each of the pillars 21 of the two building units 12 adjacent to each other on the other side of the pillar omitting joint portion 14,
Both ends of the reinforcing beam 302 are connected so as to be sandwiched between the ceiling beams 23 of the adjacent building units 12. Then, the central portion of the reinforcing beam 30 is connected to the corners of the four building units 12 where the pillars are omitted. Therefore, the ceiling structure strength of the unit building 10 is the sum of the sectional performances of the two ceiling beams 23, 23 that are adjacent to each other in the adjacent building units 12, and the sectional performance of the reinforcing beam 30 is also added. . For this reason, it is possible to greatly expand the ceiling span without pillars and form a wide continuous space without pillars.

(2) Reinforcing beams 30 are adjacent building units 1
It is installed so as to be sandwiched between two ceiling beams 23, 23 that are in contact with each other. Therefore, the reinforcing beam 30 does not seem to protrude largely below the ceiling beam 23, and the height under the beam does not decrease.

(3) The reinforcing beam 30 includes the ceiling beam 23, the column 21,
Joint pieces 23A for joining the short columns 25, 2
By being joined to 3B, those columns 21, short columns 25
Connected to. Therefore, the reinforcing beam 30 is used as the pillar 21 and the short pillar 25.
The structure for connecting to can be made simple and reliable.

(4) The reinforcing beam 30 for omitting the columns of the lower-floor building unit 12 is replaced by the floor beam 2 adjacent to the upper-floor building unit 11.
It extends up to between 2 and the extended part is the building unit 1 on the upper floor.
Connect to 1. Therefore, the ceiling structure strength of the lower-floor building unit 12 without pillars is not only reinforced by the cross-sectional performance of the reinforcing beam 30 itself, but also by the floor beam structural strength of the upper-floor building unit 11 via the reinforcing beam 30. Reinforced. Therefore, the ceiling span of the lower-floor building unit 12 where the pillars are omitted can be further expanded to form a wider continuous space where the pillars are omitted.

(5) An upper floor reinforcement beam 40 is provided between the ceiling beams 23 of the upper floor building unit 11, and each of the columns 21 to which the upper floor reinforcement beam 40 is joined to the ceiling beam 23 of the upper floor building unit 11 Connected to. Therefore, the adjacent upper-floor building units 11 are integrated by the upper-floor reinforcing beams 40, and the upper floors are hung through the pillars 21 at the center of the four upper-floor building units 11, so that 4 The upper floor load on the central portion of the lower floor building unit 12 where the columns are omitted is reduced. Therefore, by any chance, the connection between the reinforcing beam 30 of the lower-floor building unit 12 and the lower-floor building unit 12 (high-strength bolt, etc.) is broken, and the ceiling structure strength of the central portion of the lower-floor building unit 12 where the pillars are omitted decreases. However, it is possible to prevent the floor of the upper-floor building unit 11 from falling.

(6) The temporary columns 26 provided at the corners where the columns of the building unit 12 are omitted are reinforced beams 30, 4 after being installed on site after the factory manufacturing stage and the transportation and storage stage of the building unit 12.
Not removed until 0 connection is complete. Therefore, the reinforcing beam 30,
The strength of the building unit 12 at the time of connecting 40 is not reduced, and the building strength at the construction stage can be sufficiently secured, and the workability is good.

Next, another embodiment of the present invention will be described with reference to FIGS. Hereinafter, the same parts as those in the above-described embodiment will be designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 10, the unit building of this embodiment has two building units 12 arranged in parallel on one side,
12 and a first building unit group provided with a total of three building units 12 consisting of one building unit 12 arranged in series with one of the two building units 12, 12 on the other side. is there.

Building unit 1 of the first building unit group
2 has pillar-elimination corners each having a right-angled corner in plan view, the pillar-elimination corners are abutted against each other, and the sides forming the pillar-elimination corners are arranged so as to form a cross shape. , The cross-shaped adjacent building unit 12 formed by the abutted corners of the pillars and the ceiling beam 23 and the ceiling beam 23
On the side surface, a reinforcing beam 30 having a cross shape in plan view, in which a first reinforcing beam 301 and a second reinforcing beam 302 are orthogonal to each other, is installed. In the figure, reference numeral 14 is a column omitted joint. The pillar-eliminating joint portion 14 forms an inner corner portion having a wide opening without a pillar.

The first of the above-mentioned cross-shaped reinforcing beams 30
One end of the reinforcing beam 301 is sandwiched between the ceiling beams 23, 23 of the two adjacent building units 12, 12 of the first building unit group and is connected around the column 12, and the first reinforcing beam 30
The other end of 1 is located along the ceiling beam 23 of the other building unit 12 and is connected around the column 21 thereof. Further, one end of the second reinforcing beam 302 is sandwiched between the ceiling beams 23, 23 of the adjacent building units 12, 12 and connected to the ceiling beam 23, and the other end is the ceiling beam of the other building unit 12. It is located along 23 and is connected to the ceiling beam 23.

The central portion of the reinforcing beam 30 is connected to the corners of the three building units 12 where the columns are omitted. At this time, as shown in FIG. 11, the central portion of the reinforcing beam 30 has a ceiling beam 23 and a joint piece 23 using high-strength bolts 32.
It is connected to the short column 25 through a joint with B.

When the reinforcing beam 30 is connected to the pillar 21 and the short pillar 25 as described above, a detachable temporary pillar is still joined to the short pillar 25 at the corner of the pillar omission of each building unit 12. . Then, after the reinforcing beam 30 is completely connected to the pillar 21 and the short pillar 25, the temporary pillar is removed from the short pillar 25.

The reinforcing beam 30 may be joined to the ceiling beam 23, which is in contact with the reinforcing beam 30, with a bolt or the like even in a portion where the joint pieces 23A and 23B are not provided.

Also in the unit building of this embodiment, similarly to the above-mentioned embodiment, (a) a structure in which the height of the reinforcing beam extends to the floor beam of the upper floor portion 10B, (b) the upper part 1st floor
It is possible to adopt a structure in which an upper floor reinforcement beam is provided on the ceiling beam of 0B, and (c) a column is omitted in the upper floor portion 10B, and the column omission joint is reinforced by the upper floor reinforcement beam.

Next, another embodiment of the present invention will be described with reference to FIG. The unit building 10A of the present embodiment has a wall-type structure and is constructed by combining four pillar-eliminating building units 12A. The building unit 12A is one in which two wall panels are erected from two adjacent sides of a floor panel.
Has a first corner K formed of a right-angled corner in plan view, and the first corners K of the respective building units 12A are abutted against each other, and each side forming the first corner K has a cross shape. 12A of the wall panels are connected to each other to form a box-shaped first building unit group as shown in FIG. 12A.

In the first building unit group, a beam 30A having a cruciform shape in plan view is provided in the first building unit group so as to correspond to the cross-shaped side formed by the first corners K butted together. It is placed on the ceiling.

In the unit building 10A of this embodiment,
The beams 30A having a cross shape in a plan view are arranged on the ceiling portion of the first building unit group so as to correspond to the cross-shaped sides formed by the first corner portions K that are butted to each other. The pillars are omitted, and the cross-shaped beams secure the strength of the ceiling structure of the unit building. Therefore, in this unit building 10A, a wide continuous space without pillars can be formed. In addition, an upper floor building unit can be mounted on the top of the beam 3
The end of 0A is joined to the vertical member 21A of the building unit 12A.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and the design can be changed without departing from the gist of the present invention. Etc. are included in the present invention. For example, the reinforcing beam is not limited to the plate member and the T-shaped member, but may be a square tube, an H-shaped member, a C-shaped member, or the like. In addition, the reinforcing beam is not joined at once by the through bolts between the ceiling beams of two adjacent building units, but one ceiling beam is joined by one bolt to one side of the reinforcing beam. The other ceiling beam may be joined to the other surface side by another bolt. Further, the reinforcing beam may not be joined to the ceiling beam by bolts, but may be joined to the ceiling beam by other means such as welding. Furthermore, the upper reinforcing beam 40 may have a cross shape in plan view.

[0061]

In the unit building according to claim 1, when the pillar is installed at the first corners butted together,
When the cross-shaped beam can enhance the ceiling structure strength of the unit building, and when the pillar is omitted at the first butted corner, the cross-shaped beam can secure the ceiling structure strength of the unit building. A wide continuous space that is omitted can be formed.

According to the unit building of claim 2, the ceiling structural strength of this unit building is the sum of the sectional performance of the ceiling beams of the building unit plus the sectional performance of the reinforcing beams. For this reason, it is possible to greatly expand the ceiling span without pillars and form a wide continuous space without pillars. Also,
Since the reinforcing beam is installed so as to follow the ceiling beam of the building unit, the reinforcing beam does not protrude largely below the ceiling beam, and the ceiling height under the beam is not lowered.

According to the unit building of claim 3, the ceiling span without pillars can be greatly expanded to form a wide continuous space without pillars, and at the same time, a wide opening facing the outside can be secured. Further, since the reinforcing beam is installed so as to be along the ceiling beam of the building unit, the reinforcing beam does not project largely below the ceiling beam, and the ceiling height under the beam is not lowered.

According to the unit building of claim 4,
The ceiling structural strength of the lower-floor building unit without columns is reinforced not only by the cross-sectional performance of the reinforcing beam itself, but also by the floor-beam structural strength of the upper-floor building unit through the reinforcing beam. Therefore, it is possible to further expand the ceiling span of the lower-floor building unit in which the pillar is omitted and form a wider continuous space in which the pillar is omitted.

According to the unit building of claim 5,
Adjacent upper floor building units are integrated by upper floor reinforcing beams so that the upper floor can be hung through the pillar in the center of the upper floor building unit. It will reduce the upper floor load. Therefore, even if the connection between the reinforcing beam of the lower-floor building unit and the lower-floor building unit is broken (high-strength bolts, etc.) and the ceiling structure strength of the central part of the lower-floor building unit is reduced, It is possible to prevent the floor of the floor building unit from falling, which further improves the safety of the unit building.

According to the method of constructing a unit building as claimed in claim 6, the temporary pillars provided at the corners where the pillars of the building unit are omitted are:
After the on-site installation of the building unit through the factory manufacturing stage and the transportation and storage stage, it will not be removed until the connection of the reinforcing beam is completed. Therefore, the strength of the building unit at the time of connecting the reinforcing beams is not reduced, and the building strength at the construction stage can be sufficiently secured.
Workability is improved.

[Brief description of drawings]

FIG. 1 is a schematic view showing a process of connecting reinforcing beams to a first building unit group, which is an embodiment of the present invention.

FIG. 2 is a schematic diagram showing a unit building and a building unit.

FIG. 3 (A) is a side view of the reinforcing beam, and FIG. 3 (B) is a plan view thereof.

FIG. 4 is a schematic diagram showing a reinforcing structure of a first building unit group.

FIG. 5 is a schematic diagram showing an end connection structure of a reinforcing beam.

FIG. 6 is a schematic diagram showing a central connection structure of a reinforcing beam.

FIG. 7 is a schematic diagram showing a process of connecting the upper floor reinforcing beam to the upper floor building unit group.

FIG. 8 (A) is a front view of an upper floor reinforcing beam, and FIG. 8 (B) is a side view of the same.

FIG. 9 is a schematic view showing the action of the upper reinforcing beam.

FIG. 10 is a schematic view showing another embodiment of the present invention, which is a process of connecting reinforcing beams to the first building unit group.

FIG. 11 is a schematic view showing a connection structure of reinforcing beams.

FIG. 12 is another embodiment of the present invention, in which FIG. 12A is a schematic diagram showing a process of connecting reinforcing beams to the first building unit group;
FIG. 6B is a schematic diagram of the building units of the first building unit group.

[Explanation of symbols]

10, 10A unit building 11 standard building units 12, 12A Pillar omitted building unit 14 Column omitted joint 21 pillars 22 floor beams 23 ceiling beams 25 short columns 26 Temporary columns 23A, 23B Joint piece 30, 30A Reinforcement beam 40 Upper floor reinforcement beam 31, 32 High-strength bolt

Claims (6)

(57) [Claims] 1. A unit building constructed by combining a plurality of building units, wherein at least three building units each have a first corner portion which is a projecting corner portion that is substantially right angle in a plan view, and The first corners are abutted against each other, and the sides forming the first corners are arranged so as to form a cross to form a first building unit group, and the cross is formed by the abutted first corners. The first and second beams so that they correspond to the sides of
A unit building in which beams that are detachably orthogonal and have a cross shape in a plan view are arranged on the ceiling of the first building unit group. 2. A unit building constructed by adjacently installing building units in which columns, floor beams, and ceiling beams are joined in a box shape, wherein the unit buildings are two building units arranged in parallel on one side, It has a first building unit group provided with two building units arranged in parallel on the other side, and the building units of the first building unit group have a pillar omission corner portion which is a projecting corner portion that is substantially right angle in a plan view. Then, the pillar omitted corners of each building unit are abutted against each other, and the sides forming the pillar omitted corners are arranged so as to form a cross shape, and are formed by the abutted pillar omitted corners and ceiling beams. The first reinforcing beam and the second reinforcing beam can be removed in the space between adjacent cross-shaped building units.
The reinforcing beam made to the plan view cross shape formed by orthogonal ability its
Each of the first and second reinforcing beams of the is sandwiched between ceiling beams
The two ends of at least one of the first reinforcing beam and the second reinforcing beam are installed around the columns of two adjacent building units on one side and on the other side. A unit building that is connected around each pillar of two adjacent building units, and the central portions of the first and second reinforcing beams are connected to the corners of each of the four building units where the pillars are omitted. 3. A unit building constructed by adjacently installing building units in which columns, floor beams, and ceiling beams are joined in a box shape, wherein the unit buildings are two building units arranged in parallel on one side, On the other side, a first building unit group having a total of three building units including one building unit arranged in series with one of the two building units is provided, and the first building unit group The building unit has pillar-eliminating corners formed of projecting corners that are substantially right angles in a plan view, and the pillar-eliminating corners of each building unit are butted against each other.
Arranged so that each side forming the column omission corner forms a cross shape, and in the cross-shaped adjacent building unit gap and ceiling beam side face formed by the pillar omission corners and ceiling beams abutted,
The first and second reinforcing beams are detachably orthogonal to each other, and the reinforcing beams formed in a cross shape in a plan view have the first and second reinforcing beams .
The reinforcing beams are installed so as to be sandwiched between ceiling beams, and both ends of at least one of the first reinforcing beam and the second reinforcing beam are adjacent to each other on one side of the first building unit group. Connected around each pillar of the two building units and around the pillar of the building unit on the other side, and the central portion of either the first or second reinforcing beam is the corner of each of the three building units where the pillar is omitted. A unit building that is connected to. 4. The unit building is composed of a lower floor building unit group and an upper floor building unit group having a plurality of building units mounted on the lower floor building unit group, and the lower floor building unit group is a pillar. It is assumed that the first building unit group having the omitted corner portion is provided, and the height of the reinforcing beam is extended to the floor beam of the building unit of the upper floor building unit group, and the reinforcing beam is raised at the extending portion. The unit building according to any one of claims 2 and 3, which is also connected to a building unit of a floor building unit group. 5. The unit building includes a lower-floor building unit group and an upper-floor building unit group having a plurality of building units mounted on the lower-floor building unit group, and the lower-floor building unit group is a pillar. It is assumed that the first building unit group having the omitted corner portion is provided, an upper floor reinforcing beam is provided in a gap between the ceiling beams of the building units of the adjacent upper floor building unit groups, and the upper floor reinforcing beam is the upper floor building unit described above. The unit building according to any one of claims 2 to 4, which is connected to each of the columns to which the ceiling beam is joined. 6. The construction method for a unit building according to claim 2, wherein the building unit in which the pillar is omitted is a building unit in which a temporary pillar is detachably attached to a corner where the pillar is omitted. A method of constructing a unit building, characterized in that a temporary column is provided until completion of connection of the reinforcing beam, and the temporary column is removed after completion of connection of the reinforcing beam.