JPH1025815A - Unit building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve cross-sectional performance of a reinforcing beam by adjacently installing building units with columns, floor beams and ceiling beams jointed in box shape, additionally providing a reinforcing beam extended from the side face of one side ceiling beam to the side face of the other side ceiling beam positioned within the same plane, and inclining the upper face of the reinforcing beam at a gradient parallel with the pitch of a roof. SOLUTION: A lower floor part 10A and an upper floor part 10B are formed of four standard building units 11 with columns, floor beams and ceiling beams jointed in box shape. In each of the lower floor part 10A and upper floor part 10B, the building units 11 are arranged butting each other and additionally provided with a reinforcing beam extended from the side face of one side ceiling beam to the side face of the other side ceiling beam positioned within the same plane of the adjacent building units. A slanting roof 301 is provided on the upper floor part 10B. In the upper floor reinforcing beam 40, the upper face positioned directly below the roof 301 is inclined at a gradient parallel with the pitch of the roof 301, and a part held by columns at a column butting part of the adjacent building units 11, 11 is made a thin-walled part 40A thin in beam thickness, while the other part is made a thick-walled part 40B thick in beam thickness.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a unit building.

[0002]

BACKGROUND OF THE INVENTION Applicants have been working to improve the overall strength of a unit building comprising a plurality of building units.
A proposal is made to add a reinforcing beam from the side of the ceiling beam on one side to the side of the ceiling beam on the other side, which is located in the same plane of adjacent building units, and to bolt the reinforcing beam to the ceiling beam doing.

[0003]

However, the prior art has the following problems. Since the reinforcing beam is made of a rectangular flat beam,
For reinforcement beams attached to the ceiling beams directly under the roof, the beam width is determined by the lowest position of the sloped roof material or the back of the roof base material, so a larger beam width is secured. Can not. This means that there is a limit to the improvement of the cross-sectional performance of the reinforcing beam, a limit to the load that the reinforcing beam can bear, and a limit to the overall strength improvement of the unit building.

The reinforcing beam is a flat plate having a uniform beam thickness. On the other hand, a ceiling beam provided with a reinforcing beam is provided with a structure such as being attached to a column via a joint piece, and involves a step between the column, the joint piece and the ceiling beam. For this reason, when the reinforcement is arranged, for example, in the gap between the ceiling beams of the opposing building units, the maximum beam thickness of the reinforcement beam is determined by the column gap, which is the minimum gap between the building units in which it is accommodated. Therefore, there is a limit in improving the cross-sectional performance of the reinforcing beam, which imposes a limit on the load that the reinforcing beam can bear, which means that there is a limit in improving the overall strength of the unit building.

An object of the present invention is to improve the cross-sectional performance of a reinforcing beam when a reinforcing beam is attached to a ceiling beam of a building unit.

[0006]

According to the present invention, there is provided a unit building constructed by adjoining a building unit in which a pillar, a floor beam, and a ceiling beam are joined in a box shape. A reinforcing beam extending from the side of the ceiling beam on one side to the side of the ceiling beam on the other side located in the same plane of each other is attached, and the upper surface of the reinforcing beam attached to the ceiling beam is on a roof slope. It is provided with a gradient along.

According to a second aspect of the present invention, in a unit building constructed by adjoining a building unit in which a pillar, a floor beam, and a ceiling beam are joined in a box shape, at least one of the building units is defined for each of the plurality of building units. The pillar omitted corners are arranged adjacent to each other at the pillar omitted joints, and the side from one side of the ceiling beam located on the same plane including the pillar omitted joints of the adjacent building units to the other side. A reinforcing beam is provided along the side surface of the ceiling beam, and the upper surface of the reinforcing beam provided on the ceiling beam is provided with a gradient along the roof gradient.

According to a third aspect of the present invention, in a unit building constructed by adjoining a building unit in which a pillar, a floor beam and a ceiling beam are joined in a box shape, the adjacent building units are arranged in the same plane. A reinforcing beam extending from the side of the ceiling beam on one side to the side of the ceiling beam on the other side through the column butting part of both units is attached, and the beam thickness of the reinforcing beam is small at the column butting part. , In other parts.

According to a fourth aspect of the present invention, there is provided a unit building constructed by adjoining a building unit in which a pillar, a floor beam and a ceiling beam are joined in a box shape, wherein at least one of the building units is defined for each of the plurality of building units. The pillar omitted corners are arranged adjacent to each other at the pillar omitted joints, and the two building units are positioned from the side of the ceiling beam on one side located in the same plane including the pillar omitted joints of the adjacent building units. A reinforcing beam is provided along the side of the ceiling beam on the other side through the column butting portion, and the beam thickness of the reinforcing beam is small at the column butting portion and large at other portions.

The present invention according to claim 5 provides the present invention according to claims 1-4.
In the present invention described in any one of the above, further, a beam main body part in which the reinforcing beam is attached to a ceiling beam, an upper end of the beam main body part and / or
Alternatively, it has a projecting portion provided at the lower end and projecting to the side.

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, a rib is provided on a projecting portion of the reinforcing beam.

According to a seventh aspect of the present invention, in the fifth or sixth aspect of the present invention, the reinforcing beam is attached to a ceiling beam of a lower-floor building unit. It is designed to extend laterally above and / or below the ceiling beam of the floor building unit.

The present invention according to claim 8 is the invention according to claim 5 or 6, wherein the reinforcing beam is attached to a ceiling beam of a building unit under a roof, and a projecting portion of the reinforcing beam is provided. It is provided in the gap between the ceiling beam of the building unit and the roof material.

According to the first and second aspects of the present invention, the following operations are provided. Since the upper surface of the reinforcing beam is provided with a gradient along the roof gradient, the beam width of the reinforcing beam can be increased, and the sectional performance can be improved. Thus, the reinforcing beam can increase the rigidity against the vertical load and suppress the vertical deformation, and can also increase the rigidity against the horizontal load and suppress the horizontal deformation (lateral buckling). The overall strength of the building can be improved.

According to the third and fourth aspects of the present invention, the following effects are obtained. The beam thickness of the reinforcing beam is small at the column butting portion and large at other portions. That is, the beam thickness of the reinforcing beam is not uniformly determined by the dimension of the most disadvantageous portion (column abutting portion) in which the reinforcing beam is accommodated, but can be increased in other portions where the beam thickness can be increased. Cross-sectional performance can be improved. Thus, the reinforcing beam can increase the rigidity against the vertical load and suppress the vertical deformation, and can also increase the rigidity against the horizontal load and suppress the horizontal deformation (lateral buckling). The overall strength of the building can be improved.

According to the fifth aspect of the present invention, the following operations are provided. Since the reinforcing beam is provided at the upper end and / or the lower end of the beam main body and has a projecting portion that protrudes laterally, the cross-sectional performance of the reinforcing beam can be improved within a limited range of the beam. Thus, the reinforcing beam can increase the rigidity against the vertical load and suppress the vertical deformation, and can also increase the rigidity against the horizontal load and suppress the horizontal deformation (lateral buckling). The overall strength of the building can be improved.

According to the sixth aspect of the present invention, the following operations are provided. Since the projecting portion of the reinforcing beam is provided with the rib, the sectional performance of the reinforcing beam can be further improved. Thereby, the reinforcing beam further
The rigidity to the vertical load is increased to suppress the vertical deformation, and the rigidity to the horizontal load is also increased to suppress the horizontal deformation (lateral buckling), thereby increasing the overall strength of the unit building. Can be improved.

According to the present invention, the following effects are obtained. The reinforcing beam is attached to the ceiling beam of the lower-floor building unit, and the overhang of the reinforcing beam extends laterally above and / or below the ceiling beam of the lower-floor building unit. The cross-sectional performance of the reinforcing beam can be improved in a limited space around the ceiling beam of the lower-floor building unit.

According to the eighth aspect of the present invention, the following operations are provided. A reinforcing beam is attached to the ceiling beam of the building unit under the roof,
Since the overhanging portion of the reinforcing beam is provided in the gap between the ceiling beam of the building unit and the roof material, the cross section of the reinforcing beam is limited within a limited space between the building unit under the roof and the roof material. Performance can be improved.

[0020]

FIG. 1 is a schematic view showing a unit building according to a first embodiment, FIG. 2 is a view taken along the line II-II of FIG.
FIG. 3 is a schematic view showing a lower floor reinforcing beam, FIG. 4 is a schematic view showing an upper floor reinforcing beam, FIG. 5 is a schematic view showing a unit between a lower floor reinforcing beam and an upper floor reinforcing beam, and FIG. FIG. 7 is a schematic diagram showing a modified example of the reinforcing beam, FIG. 8 is a schematic diagram showing a conventional structure of the reinforcing beam, and FIG. 9 is a unit building and a building unit of the second embodiment. FIG. 10 is a schematic diagram showing
Is a schematic diagram showing the reinforcing beam connection process to the lower-floor building unit,
FIG. 11 is a schematic diagram showing a lower floor reinforcing beam, FIG. 12 is a schematic diagram showing a lower floor reinforcing beam, FIG. 13 is a schematic diagram showing an end connection structure of the lower floor reinforcing beam, and FIG. FIG. 15 is a schematic diagram showing a mounting structure of an upper-floor building unit, FIG. 16 is a schematic diagram showing a reinforcing beam connecting process to an upper-floor building unit, and FIG. 17 shows an upper-floor reinforcing beam. Schematic diagram, FIG.
FIG. 8 is a schematic diagram showing the fitting of the reinforcing beams under the roof, FIG. 19 is a schematic diagram showing the installation process of the unit building, and FIG. 20 is a schematic diagram showing the fitting of the reinforcing beams of the third embodiment under the roof.

(First Embodiment) (FIGS. 1 to 8) The unit building 10 shown in FIGS. 1 and 2 has a lower floor 10A composed of four standard building units 11, and four standard building units 11 Constitutes the upper floor portion 10B.

In the unit building 10, four building units 11 are arranged in the lower floor portion 10A and the upper floor portion 10B, respectively, and the lower floor reinforcing beams 30 and the upper floor reinforcing beams 40 are arranged on one of the right and left sides. From between the ceiling beams 23 of the two building units 11 facing each other, the ceiling beams 23 of the other two building units 11 facing each other on the left and right sides.
3 is provided. And reinforcement beam 3
Both ends of 0 and 40 are connected to the column 21 by friction bonding with the ceiling beam 23 using a high-strength bolt and the joint piece 23A, and the central portion of the reinforcing beams 30 and 40 is a ceiling beam 23 using a high-strength bolt. It is connected to the column 21 by friction welding with the joint piece 23A (FIG. 5).

The unit building 10 has a sloped roof 301 on the upper floor portion 10B. The roof 301 is a tight frame 3 provided on the ceiling beam 23 of the building unit 11.
02 is formed by attaching a folded roof material 304 to a mounting hardware 303 (FIG. 6).

However, the lower floor reinforcing beam 30 is (a) formed in a rectangular plate shape (FIG. 3 (A)), and (b) formed on the pillars 21, 21 at the butting portions of the adjacent building units 11, 11. The portion to be sandwiched is a thin portion 30A having a small beam thickness, and the other portions (the portion to be sandwiched between the joint pieces 23A, 23A and the ceiling beam 2)
The portion sandwiched between 3 and 23) is a thick portion 30B having a large beam thickness (FIGS. 3B and 5A).

The upper-story reinforcing beam 40 is composed of (a) a roof 301.
The upper surface located just below the roof is sloped along the roof slope (Fig. 4A), and (b) the adjacent building unit 1
The portion sandwiched between the columns 21 and 21 at the column abutting portions 1 and 11 is a thin portion 40A having a small beam thickness, and the other portions (the portions sandwiched between the joint pieces 23A and 23A and the ceiling beams 23 and 23).
The portion sandwiched between the two is formed as a thick portion 40B having a large beam thickness (FIGS. 4B and 5A).

The reinforcing beams 30 and 40 have a small beam thickness at a portion sandwiched between the columns 21 and 21 and have joint pieces 23A and 2A.
The beam thickness of the portion sandwiched by 3A may be changed in three stages so that the beam thickness of the portion sandwiched by the ceiling beams 23 is increased while the beam thickness of the portion sandwiched by the ceiling beams 23 is increased.

Therefore, according to this embodiment,
Has the effect of Since the upper surface of the upper floor reinforcing beam 40 is provided with a gradient along the roof gradient, the beam height H of the reinforcing beam 40 can be increased, and the sectional performance can be improved (FIGS. 4A and 6). Thereby, the reinforcing beam 4
0 can increase the rigidity against the load in the vertical direction to suppress the deformation in the vertical direction, and can also increase the rigidity against the load in the horizontal direction to suppress the deformation in the horizontal direction (lateral buckling). Strength can be improved. FIG. 8 (A) shows a conventional rectangular flat plate upper-story reinforcing beam 1, and the beam H of the reinforcing beam 1 is determined by the lowest position of the back surface of the roof 301, and a large H cannot be secured. .

The beam thickness of the lower floor reinforcing beam 30 and the upper floor reinforcing beam 40 is small at the portion sandwiched between the columns 21 and 21 and large at other portions (FIGS. 3B and 4B). (FIG. 5 (A)). That is,
The beam thickness of the reinforcing beams 30 and 40 is not uniformly determined by the size of the most disadvantageous portion (column abutting portion) in which it is accommodated, but can be increased in other portions where the beam thickness can be increased. The cross-sectional performance of the beams 30, 40 can be improved. Accordingly, the reinforcing beams 30, 40 increase the rigidity against the vertical load and suppress the vertical deformation, and also increase the rigidity against the horizontal load to suppress the horizontal deformation (lateral buckling). As a result, the overall strength of the unit building 10 can be improved. FIG. 8 (B) shows a conventional reinforcing beam 1 having a uniform beam thickness.
It becomes large as in (C). On the other hand, the reinforcing beams 30, 4
The lateral buckling state of 0 suppresses lateral buckling in the portion K1 where the beam thickness is large and the portion K2 where the high strength is most severe as shown in FIG. 5B. In addition, the magnitude | size of the beam thickness of the reinforcement beams 30 and 40 can be formed by cutting of a beam material.

Further, as shown in FIG. 6, the upper-floor reinforcing beam 40 may have a uniform beam thickness only by providing a gradient along the roof gradient on the upper surface.

The lower floor 10A of the unit building 10
Alternatively, in the upper floor portion 10B, as shown in FIG. 7, reinforcing beams 30, 40 extending from the ceiling beam 23 on one side to the ceiling beam 23 on the other side located in the same plane of the building outline of the adjacent building units 11, 11. Also, by making the beam thickness small at the column butting portion and large at other portions, the cross-sectional performance of the reinforcing beams 30 and 40 can be improved.

(Second Embodiment) (FIGS. 9 to 19) A unit building 10 to which the present invention is applied will be described in detail. (Unit Building and Building Unit) (FIG. 9) As shown in FIG. 9A, the unit building 10 transports a plurality of factory-produced standard building units 11 and pillar-omitted building units 12 to a building site and installs them in advance. The lower floor 10A is installed horizontally and vertically adjacent to the foundation 13
The upper floor portion 10B is constructed.

As shown in FIG. 9 (B), the standard building unit 11 has four square steel pipe columns 21 and four mold steel floor beams 2.
This is a skeleton structure in which two and four ceiling steel beams 23 are joined in a box shape. The building unit 11 connects the crossing floor beam 22 to the lower end of the column 21 by the joint piece 22A at the four corners, and joins the crossing ceiling beam 23 to the upper end of the column 21 by the joint piece 23A. It is composed.

As shown in FIG. 9C, one of the four pillars 21 of the standard building unit 11 is omitted from the pillar omitted building unit 12. The pillar omitted building unit 12 joins the intersecting floor beams 22 to the lower ends of the columns 21 by joint pieces 22A at three corners other than the pillar omitted corners, and connects the intersecting ceiling beams 23 to the joint pieces 23A. At the upper end of the pillar 21 and at the corner where the pillar is omitted, the floor beams 2
2 is joined to the short column 24 by the joint piece 22B,
The mutually intersecting ceiling beams 23 are joined to short columns 25 by joint pieces 23B. And in the pillar omitted building unit 12, the temporary pillar 26 is detachable at the pillar omitted corner. The temporary column 26 is detachably connected to the short column 24 and the short column 25 by attaching and detaching means such as bolts and pins.

The unit building 10 has a sloped roof 301 provided on the upper floor portion 10B. The sloping roof 301 is mounted on a ceiling frame 23 of the standard building unit 11 constituting the upper floor portion 10B.
3 is formed by attaching a folded roof material 304 (FIG. 1).
8).

(Lower floor portion 10A of unit building 10)
(FIGS. 10 to 14) However, as shown in FIG. 10, the unit building 10 is a part of the lower floor portion 10A and has four pillar-omitted building units 12 as shown in FIG.
The respective pillar omitted corners are placed against each other at the pillar omitted joints 14 so that the four pillar omitted building units 12 form a wide continuous living room space which is not blocked by the pillars 21. . Hereinafter, a joint structure of the four pillar omitted building units 12 will be described.

In the lower floor portion 10A of the unit building 10, the pillar omitted joints 14 of the four pillar omitted building units 12
Is reinforced by the lower floor reinforcing beams 30. Lower floor reinforcement beam 30
11 is made of a long plate material as shown in FIG. 11, and as shown in FIGS. 10 and 11, ceiling beams 23, 23 of two building units 12 adjacent to each other on one of the left and right sides of the pillar omitted joint portion 14. Between the ceiling beams 23 of the other two building units 12 adjacent to each other on the other side on the left and right. FIG.
In 2, reference numeral 15 denotes a lower floor ceiling plate, and 16 denotes an upper floor floor plate.

Here, the lower floor reinforcing beam 30 is (a) formed in a rectangular flat plate shape (FIGS. 11A and 11B), and (b) at the column butting portion of the adjacent building units 11 and 11. Pillar 21,
The portion sandwiched by 21 is a thin portion 30A having a small beam thickness, and the other portions (portions sandwiched by joint pieces 23A, 23A and portions sandwiched by ceiling beams 23, 23) are thick portions 30B having a large beam thickness. (FIG. 11 (C), FIG. 12 (B)).

However, as shown in FIG.
0, the opposing ceiling beams 2 of the column-omitted building units 12, 12, which face each other with the reinforcing beam 30 interposed therebetween.
Connecting plates 101 are attached to the lower surfaces of the flanges 3 and 23,
It is fixed by bolts 102 and 103. This connecting plate 1
Numeral 01 is attached before the lower floor reinforcing beam 30 is installed, functions as a receiving plate on which the reinforcing beam 30 can be placed when the reinforcing beam 30 is installed, and the reinforcing beam 30 is easily set at the mounting position with respect to the ceiling beams 23, 23. Make it possible.

As shown in FIG. 13, both ends of the lower-floor reinforcing beam 30 are connected to the columns 21 of the two building units 12 adjacent to each other on one of the right and left sides of the column omitted joint 14 and the column omitted joint. On the other side of 14, each is connected to each column 21 of two adjacent building units 12. At this time, both ends of the reinforcing beam 30 are joined by high-strength bolts (friction joining) with the ceiling beam 23 and the joint piece 23A using the high-strength bolts 104 and 105.
Is connected to the pillar 21 via the. One high strength bolt 104
Is accompanied by a reinforcing washer 106.

In the practice of the present invention, the above-mentioned joining of the reinforcing beams is not limited to high-strength bolts, but may be simple ordinary bolts.

As shown in FIG. 14, the pillar omitted corners of the four building units 12 are connected to the center of the reinforcing beam 30. At this time, the central portion of the reinforcing beam 30 is connected to the short column 25 via the joint with the ceiling beam 23 and the joint piece 23B using the high-strength bolts 104 and 105. One high-strength bolt 104 has a reinforcing washer 106.

When the reinforcing beam 30 is connected to the column 21 and the short column 25 as described above, the temporary column 26 which is detachable from the short column 25 is still joined to the column omitted corner of each building unit 12. I have. Then, after the connection of the reinforcing beams 30 to the columns 21 and the short columns 25 is completed, the temporary columns 26 are removed from the short columns 25.

The reinforcing beam 30 is a ceiling beam 2 adjacent to two building units 12 adjacent to each other with the reinforcing beam 30 interposed therebetween.
The parts without the joint pieces 3 and 23 and the joint pieces 23A and 23B may be joined using bolts or the like.

As shown in FIG. 14, the building units 12 and 12 opposite to each other without the lower floor reinforcing beam 30 interposed therebetween have the connecting plate 101 attached to the lower surface of the flanges of the opposite ceiling beams 23 and 23. It is fixed and joined by bolts 102 and 103. 13 and FIG.
Is a horizontal brace.

(Mounting of Upper Floor 10B on Lower Floor 10A of Unit Building 10) (FIG. 15) The unit building 10 has the upper floor 1 above the lower floor 10A.
In mounting 0B, four upper-floor standard building units 11 can be mounted on four lower-floor column-omitted building units 12 that constitute a part of the lower-floor portion 10A (see FIG. 15 ( A)). At this time, four upper floor building units 11
Are the upper-floor building units 11 at the three corners other than the pillar-omitted corners of the four lower-floor building units 12.
The lower end faces of the three pillars 21 are placed on and joined to the upper end faces of the three pillars 21 of the lower-floor building unit 12, and the upper-floor building unit 1
The lower end face of one of the pillars 21 is placed on the upper end face of the short pillar 25 of the lower-floor building unit 12 and connected (FIG. 15B).

At this time, as shown in FIG. 15C, the lower-floor reinforcing beams 30 for reinforcing the four lower-floor building units 12 are provided.
The height of the floor beam 22 adjacent to the upper-floor building unit 11,
22 and the lower floor reinforcing beam 30 is connected to the floor beam 22 and the joint piece 22A of the upper floor building unit 11 by the high strength bolts 104 and 105 at this extending portion. it can.

The height of the lower reinforcing beam 30 for reinforcing the four lower building units 12 simply extends between the adjacent floor beams 22 of the upper building unit 11. You can just do it. At this time, the above-described extending portion of the lower-floor reinforcing beam 30 is simply sandwiched between the floor beam 22 and the joint piece 22A of the upper-floor building unit 11, and the high-strength bolts 104 and 105 are not used.

(Reinforcement of the upper floor portion 10B above the lower floor portion 10A) (FIGS. 16 and 17) Four upper floor standard building units 11 are mounted on the four lower floor pillar omitted building units 12 as described above. Fig. 1
As shown in FIG. 6, the upper floor reinforcing beam 4 is also provided between the ceiling beams 23, 23 of the upper floor building unit 11, which is located on the same plane as the ceiling beams 23, 23 provided with the reinforcing beams 30 of the lower floor building unit 12.
0 can be provided.

As shown in FIG. 17, the upper floor reinforcing beam 40 is provided at the upper end of the beam main body 41 attached to the ceiling beam 23 of the upper floor building unit 11, and is extended to both sides. It is made of a long T-shaped member having a T-shaped cross section having an overhanging part 42, and the other of the left and right sides from between the ceiling beams 23 of the two building units 11 adjacent to each other on one of the left and right sides. It is provided between the ceiling beams 23 of the two building units 11 adjacent on the side. The upper-floor reinforcing beam 40 is attached to the ceiling beam 23 immediately below the roof 301, and
Is provided in the gap between the ceiling beam 23 and the roof material 304.

Here, the upper floor reinforcing beam 40 is provided with a gradient along the roof gradient on the upper surface located immediately below the roof 301 (FIG. 17A), and (b) the adjacent building unit 1
The portion sandwiched between the columns 21 and 21 at the column abutting portions 1 and 11 is a thin portion 40A having a small beam thickness, and the other portions (the portions sandwiched between the joint pieces 23A and 23A and the ceiling beams 23 and 23).
The portion sandwiched between the two is a thick portion 40B having a large beam thickness (FIGS. 17C and 18).

Each of the two ends and the center of the upper floor reinforcing beam 40 is attached to each column 21 of two adjacent building units 11 similarly to the both ends of the lower floor reinforcing beam 30 shown in FIG. It is connected via the joint with the ceiling beam 23 and the joint piece 23A using the high-strength bolts 104 and 105.

The upper floor reinforcing beam 40 is connected to the ceiling beams 23, 23 of two building units 11, 11 adjacent to each other with the reinforcing beam 40 interposed therebetween, and the bolts and the like at the portion without the joint piece 23A. May be joined together.

According to this, the adjacent building units 11 are integrated by the upper floor reinforcing beam 40, and the upper floor is suspended via the pillar 21 at the center of the four building units 11. The upper floor load on the central part of the lower floor building unit 12 where the pillars are omitted is reduced.

The unit building 10 is installed according to the following (1) to (8) (FIG. 19). (1) The lower floor portion 10A is constructed by the standard building unit 11 and the pillar omitted building unit 12. The connecting plate 101 of the connecting structure A is installed.

(2) Adjacent pillar-less building units 12, 12
The reinforcing beam 30 is installed between the ceiling beams 23, 23. The reinforcing beam 30 is placed on the connecting plate 101.

(3) The ceiling beams 23, 23 and the lower reinforcement beam 30 facing each other by the connection structures A, B are connected to the high-strength bolt 10
4 and 105 are joined by friction.

(4) The upper floor portion 10B is constructed by the standard building unit 11. The connecting plate 101 of the connecting structure A is installed.

(5) An upper floor reinforcement beam 40 is installed between the ceiling beams 23 of the adjacent standard building units 11. The upper floor reinforcing beam 40 is placed on the connecting plate 101.

(6) The ceiling beams 23, 23 and the upper floor reinforcing beam 40 facing each other by the connection structures A, B are connected to the high-strength bolt 10
4 and 105 are joined by friction.

(7) The temporary pillar 26 on the upper floor is removed. (8) Remove the temporary pillar 26 on the lower floor.

Therefore, according to the present embodiment, the following:
Has the effect of Since the upper surface of the upper floor reinforcement beam 40 is provided with a gradient along the roof gradient, the beam height of the upper floor reinforcement beam 40 can be increased, and the cross-sectional performance can be improved. Thereby, the upper story reinforcing beam 40 increases rigidity to a load in the vertical direction to suppress deformation in the vertical direction, and also increases rigidity to a load in the horizontal direction to suppress deformation in the horizontal direction (lateral buckling). As a result, the overall strength of the unit building 10 can be improved.

The beam thickness of the reinforcing beams 30 and 40 is small at the column butting portion and large at other portions. That is, the reinforcing beams 30, 40
Is not determined uniformly by the dimensions of the most disadvantageous part (column abutting part) in which it fits, but can be made thicker in other parts where the beam thickness can be increased.
0 cross-sectional performance can be improved. Thereby, the reinforcing beam 30,
40 increases rigidity against a vertical load and suppresses vertical deformation, and also increases rigidity against a horizontal load and suppresses horizontal deformation (lateral buckling). Strength can be improved.

Since the reinforcing beam 40 is provided at the upper end of the beam main body 41 and has the projecting portion 42 that protrudes laterally, the cross-sectional performance of the reinforcing beam 40 can be improved within a limited range of the beam.
Thereby, the reinforcing beam 40 can increase the rigidity against the vertical load to suppress the vertical deformation, and can also increase the rigidity against the horizontal load to suppress the horizontal deformation (lateral buckling). The overall strength of the unit building 10 can be improved.

The reinforcing beam 40 is applied to the building unit 11 under the roof.
Of the reinforcing beam 40 is attached to the ceiling beam 23 of the
Is provided in the gap between the ceiling beam 23 of the building unit 11 and the roofing material 304, so that the cross section of the reinforcing beam 40 is limited within a limited space between the building unit 11 and the roofing material 304 under the roof. Performance can be improved.

(Third Embodiment) (FIG. 20) The difference between the unit building 10 of the third embodiment and the unit building 10 of the second embodiment is that the That is, the reinforcing beam 50 is used. The upper-floor reinforcing beam 50 has a beam body 51 attached to the ceiling beam 23 of the upper-floor building unit 11, and a projecting portion 52 provided at the upper end of the beam body 51 and projecting to both sides, Further, rising ribs 53 are provided on both side edges of the overhang portion 52.
The reinforcing beam 50 is attached to the ceiling beam 23 immediately below the roof 301, and extends the overhang 52 and the rib 53 to the ceiling beam 23 and the roofing material 3.
04.

Therefore, according to the present embodiment, the following:
Has the effect of Since the reinforcing beam 50 is provided at the upper end of the beam main body 51 and includes the projecting portion 52 that protrudes laterally, the cross-sectional performance of the reinforcing beam 50 can be improved within a limited range of the beam. This allows
The reinforcing beam 50 can increase the rigidity against the vertical load to suppress the vertical deformation, and can also increase the rigidity against the horizontal load to suppress the horizontal deformation (lateral buckling). Can improve the overall strength.

Since the projecting portion 52 of the reinforcing beam 50 is provided with the rib 53, the sectional performance of the reinforcing beam 50 can be further improved.
Thereby, the reinforcing beam 50 further increases the rigidity against the load in the vertical direction and suppresses the deformation in the vertical direction.
The rigidity against the load in the horizontal direction is also increased, so that the deformation (horizontal buckling) in the horizontal direction can be suppressed, and the overall strength of the unit building 10 can be improved.

The reinforcing beam 50 is applied to the building unit 11 under the roof.
Of the reinforcing beam 50 is attached to the ceiling beam 23 of the
Is provided in the gap between the ceiling beam 23 of the building unit 11 and the roofing material 304, so that the cross section of the reinforcing beam 50 is limited within a limited space between the building unit 11 and the roofing material 304 under the roof. Performance can be improved.

In the present invention, the projecting portion of the reinforcing beam may be provided at the lower end or both the upper end and the lower end of the beam main body.

Further, in the present invention, the projecting portion of the reinforcing beam may be disposed laterally above and / or below the ceiling beam of the lower-floor building unit.

The embodiment of the present invention has been described in detail 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 scope of the present invention. The present invention is also included in the present invention. For example, the unit building to which the present invention is applied may be a building consisting of only a plurality of standard building units (having no pillar-omitted building unit). At this time, the reinforcing beams are provided from the ceiling beams of the standard building units arranged on one of the left and right sides to the ceiling beams of the standard building units arranged on the other of the left and right sides. Also in this case, the strength of the entire unit building can be improved.

The reinforcing beams are not limited to those arranged in the gaps between the ceiling beams of the building units facing each other, but may be those attached to the side surfaces of the ceiling beams provided with the outer walls of the building units located at the outer edges of the building. It may be.

[0073]

As described above, according to the present invention, when a reinforcing beam is attached to a ceiling beam of a building unit, the sectional performance of the reinforcing beam can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating a unit building according to a first embodiment.

FIG. 2 is an arrow view along the line II-II in FIG.

FIG. 3 is a schematic view showing a lower floor reinforcing beam.

FIG. 4 is a schematic view showing an upper floor reinforcing beam.

FIG. 5 is a schematic view showing a space between units of a lower floor reinforcing beam and an upper floor reinforcing beam.

FIG. 6 is a schematic diagram showing the fitting of the reinforcing beams on the upper floor under the roof.

FIG. 7 is a schematic view showing a modified example of a reinforcing beam.

FIG. 8 is a schematic view showing a conventional structure of a reinforcing beam.

FIG. 9 is a schematic diagram illustrating a unit building and a building unit according to the second embodiment.

FIG. 10 is a schematic view showing a process of connecting a reinforcing beam to a lower-floor building unit.

FIG. 11 is a schematic view showing a lower floor reinforcing beam.

FIG. 12 is a schematic diagram showing a lower floor reinforcement structure.

FIG. 13 is a schematic view showing an end connection structure of a lower-floor reinforcing beam.

FIG. 14 is a schematic diagram showing a connection structure of a central portion of a lower reinforcing beam.

FIG. 15 is a schematic diagram showing a mounting structure of an upper-floor building unit.

FIG. 16 is a schematic view showing a process of connecting a reinforcing beam to an upper-floor building unit.

FIG. 17 is a schematic diagram showing an upper-story reinforcing beam.

FIG. 18 is a schematic diagram showing the fitting of a reinforcing beam under a roof.

FIG. 19 is a schematic diagram showing an installation process of a unit building.

FIG. 20 is a schematic view showing the reinforcement beam of the third embodiment fit under a roof.

[Explanation of symbols]

 Reference Signs List 10 unit building 11 standard building unit 12 pillar omitted building unit 21 pillar 22 floor beam 23 ceiling beam 30, 40, 50 reinforcing beam 30A, 40A thin portion 30B, 40B thick portion 41, 51 beam body portion 42, 52 overhang portion 53 rib

Claims (8)

[Claims] 1. A unit building constructed by adjoining building units in which pillars, floor beams and ceiling beams are joined in a box shape, wherein one of the ceiling beams located on the same plane as the adjacent building units is provided. A unit building having a reinforcing beam extending from a side surface to a side surface of a ceiling beam on the other side, wherein an upper surface of the reinforcing beam attached to the ceiling beam has a slope along a roof slope. . 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 at least one pillar omitted corner portion defined for each of the plurality of building units is a column. Reinforcing beams that are arranged adjacent to each other at the omitted joints and that extend from the side of the ceiling beam on one side to the side of the ceiling beam on the other side located in the same plane including the column omitted joints of the adjacent building units A unit building, wherein an upper surface of a reinforcing beam attached to the ceiling beam has a slope along a roof slope. 3. A unit building constructed by adjoining a building unit in which columns, floor beams and ceiling beams are joined in a box shape, wherein one of the ceiling beams located on the same plane as the adjacent building units is provided. A reinforcing beam is added to the side of the ceiling beam on the other side through the column butting part of both units from the side, and the beam thickness of the reinforcing beam becomes small at the column butting part and large at other parts A unit building characterized by the following: 4. A unit building constructed by adjoining building units in which columns, floor beams, and ceiling beams are joined in a box shape, wherein at least one pillar omitted corner portion defined for each of the plurality of building units is formed by a pillar. Arranged adjacent to each other at the omitted joint, and from the side of the ceiling beam on one side located in the same plane including the column omitted joint of the adjacent building unit, through the column joint of both units and the other A unit building characterized by a reinforcing beam that extends along the side of the ceiling beam on the side, and the beam thickness of the reinforcing beam is small at the column butting portion and large at other parts. 5. The beam according to claim 1, wherein the reinforcing beam has a beam main body attached to a ceiling beam, and a projecting portion provided at an upper end and / or a lower end of the beam main body and extending laterally. 5. The unit building according to any one of to 4 above. 6. The unit building according to claim 5, wherein a rib is provided on an extension of the reinforcing beam. 7. The reinforcing beam is attached to a ceiling beam of a lower-floor building unit, and a projecting portion of the reinforcing beam extends laterally above and / or below the ceiling beam of the lower-floor building unit. The unit building according to claim 5 or 6, wherein 8. The reinforcing beam is attached to a ceiling beam of a building unit under a roof, and a projecting portion of the reinforcing beam is provided in a gap between the ceiling beam of the building unit and a roof material. The listed unit building.