JP3639015B2 - Unit type building and construction method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a unit type building and a construction method thereof, and can be used for a building that requires a wide internal space such as a restaurant or a store.
[0002]
[Background]
Conventionally, the building unit pillars that make up the unit type building are set as detachable temporary columns, and when multiple building units are combined on the construction site, the temporary columns are removed from each building unit, so that multiple buildings It is known to form a wide space without columns in the unit. A method for forming such a space is described in Japanese Patent Publication No. 54-2492.
According to this, the building unit is configured to include a floor panel, a ceiling panel, and a plurality of columns connecting the floor panel and the ceiling panel, and at least one of these columns is a detachable temporary column, Further, a reinforcing member is embedded in the floor board. And when a plurality of such building units are arranged side by side so that the temporary columns are adjacent to each other and the reinforcing members of each flooring are connected to each other, each flooring is reinforced by the connected reinforcing material. Even if temporary columns are removed from the building units, the strength of those building units is ensured.
However, in such a case, since the reinforcing material is integrated with the floor board, the structure of each floor board is different between the building unit where the temporary pillar is erected and the normal building unit where the temporary pillar is not used. . For this reason, in order to produce a building unit, two types of floorboards must be prepared, and there is a problem that productivity efficiency is poor.
[0003]
Therefore, the applicant of the present application has proposed a method described in JP-A-4-136341.
According to this, the building unit is configured to include columns erected at the four corners, and each of the four upper and lower beams spanned between the upper and lower ends of these columns. At least one of them is a detachable temporary pole. Then, after a plurality of such building units are arranged side by side so that the temporary columns are adjacent to each other, the temporary columns are removed from each building unit. At this time, in order to secure the strength of each building unit, a reinforcing frame (reinforcing beam) straddling the building units is retrofitted between the remaining pillars.
In such a case, since the reinforcement frame for reinforcing the building unit is prepared separately, the building unit in which the temporary column is erected and the normal building unit in which the erection column is not erected have a common column or beam. Yes, the aforementioned problem is solved.
[0004]
[Problems to be solved by the invention]
However, in the latter case, since the reinforcing frame is attached so as to cross the inside of each building unit, it has become an obstacle when designing the floor plan. For this reason, there is a limit to the free floor plan design, despite the fact that the interior is a large space without pillars.
[0005]
The objective of this invention is providing the unit type building which can improve the freedom degree of the floor plan design of the interior space formed from the some building unit, and its construction method.
[0006]
[Means for Solving the Problems]
The unit building of the present invention will be described with reference to the drawings. The unit building 10 is a unit building 10 that is constructed by combining at least four rectangular parallelepiped building units 12E to 12L produced in a factory in a horizontal direction at a construction site. Thus, the at least four building units 12E to 12L are spanned between four pillars erected at the four corners and the upper ends of the four pillars 16 to form an upper planar square in a rectangular parallelepiped shape. The four upper beams 17 are combined, and the corners 20 of the plane quadrangle are gathered together and combined, and these corners are connected to each other via a connecting member 29 having a cross-sectional cross section, The member 29 is disposed within the height of the total eight upper beams 17 forming the corners 20, and the pillars 16 erected at least at the corners 20 among the four pillars 16. The removable temporary pillar 16A is set above the four collected building units 12E to 12L, and the four upper beams 17 having the same bridging direction among the eight upper beams 17 of each corner 20 are arranged. Reinforcing beams 14H to 14J are arranged so as to pass through the corner 20 along the beam 17, and the reinforcing beams 14J to 14H and the corner 20 are connected to each other , above the four building units 12E to 12L. Further, the reinforcing beams 14L and 14M perpendicular to the reinforcing beams 14H to 14J are arranged, and the reinforcing beams 14L and 14M and the reinforcing beams 14H to 14J are separated from the corners 20 at a position. It is characterized by being crossed and connected to each other .
In the present invention, a total of eight upper beams forming each corner portion 20 are formed by connecting the four corner portions 20 on which the temporary pillars 16A are erected with each other by a connecting member 29 having a cross-sectional cross section. 17 will be regarded as a large cross-shaped continuous beam. For this reason, even if the temporary column 16A is removed from each corner portion 20, the strength of each building unit 12E to 12L is secured with this large beam, so that a conventional reinforcing frame is not necessary, and each building unit 12E to 12L Inside is a large space with no obstacles. Accordingly, the degree of freedom in floor plan design is improved.
[0007]
Further, since the four upper beams 17A are reinforced by the reinforcing beams 14H to 14J, the strength of the building units 12E to 12L is further improved.
[0008]
Further, the strength of each of the building units 12E to 12L is further improved by the separate reinforcing beams 14L and 14M, and the crossing positions of the reinforcing beams 14 where the vertical load is most concentrated are separated from the corners 20, thereby The vertical load is prevented from being transmitted to the corners 20 that are not erected, and the durability of the parts connected by the connecting member 29 is improved.
[0009]
Further, when each corner portion 20 is formed by a fitting 19A that connects the ends of the upper beam 17, the bolt hole 22A for attaching the temporary pillar 16A, the bolt hole 24A for attaching the connecting member 29, and the like are provided. Since it only has to be provided in the fitting 19A, the work becomes easier than directly providing such bolt holes 22A, 24A etc. directly at the end of the long and heavy upper beam, and the building units 12E-12L Production can be performed efficiently.
[0010]
Moreover, the construction method of the unit type building of this invention is a factory. At least four rectangular parallelepiped building units 12E-12L are provided with four 16 pillars standing at four corners, and the upper ends of these four 16 pillars. And four upper beams 17 which are bridged between them and form an upper plane quadrangle in a rectangular parallelepiped shape, and a column 16 erected at at least one corner 20 of the plane quadrangle is detachable. As the temporary pillar 16A, at the construction site, the building units 12E to 12L are assembled by combining the corners 20 on which the temporary pillars 16A are erected together. Are connected to each other via a connecting member 29, and then the temporary pillar 16A is removed from each corner 20 to form a wide space free of obstacles in each building unit 12E to 12L. In the construction method, the connecting member 29 is disposed within the height of a total of eight upper beams 17 forming the respective corners 20, and is located above the four building units 12E to 12L gathered together. Further, reinforcing beams 14H to 14J are arranged so as to pass through the corner portions 20 along the four upper beams 17 having the same bridging direction among the eight upper beams 17 of the respective corner portions 20. The reinforcing beams 14J to 14H and the corner 20 are connected to each other, and other reinforcing beams 14L and 14M orthogonal to the reinforcing beams 14H to 14J are disposed above the four building units 12E to 12L. The other reinforcing beams 14L and 14M and the reinforcing beams 14H to 14J are crossed at positions away from the corners 20 and connected to each other .
Also in the present invention, as described above, the degree of freedom in floor plan design is improved and the object is achieved.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 schematically shows a unit building according to the present embodiment.
In this figure, a unit building 10 includes a foundation 11 placed at a construction site, a plurality of cubic first-floor building units 12 juxtaposed on the foundation 11, and these first-floor building units 12. And a plurality of second-floor building units 13 arranged side by side, and a plurality of reinforcing beams 14 disposed between the first-floor building unit 12 and the second-floor building unit 13. It is a flat roof provided above the unit 12 and in a portion where the second-floor building unit 13 is not juxtaposed.
In addition, although a flat roof etc. are provided above the second-floor building unit 13, illustration is abbreviate | omitted in this Embodiment for simplification.
[0012]
FIG. 2 is a plan view showing a state in which the building units 12 are arranged on the first floor portion of the unit type building 10.
In this figure, a total of twelve first-floor building units 12 are arranged in parallel, four so that the long sides of each other are adjacent to each other and three so that the short sides of each other are adjacent to each other.
Of the first-floor building units 12, the first-floor building units 12 </ b> A to 12 </ b> D are spanned between four pillars 16 standing at four corners and the upper ends of the four pillars 16 as shown in FIG. 3. And four upper beams 17 forming an upper planar square in a rectangular parallelepiped shape, four lower beams 18 spanned between the lower ends, and a fitting 19 for connecting these column beams. The flat roof 15 is provided above the first floor building units 12A to 12D via the reinforcing beams 14 as shown in FIG.
On the other hand, as shown in FIG. 4, the first floor building units 12 </ b> E to 12 </ b> H among the first floor building units 12 are composed of substantially the same members as the first floor building units described above. Only one of them is a temporary column 16A, which is detachable from the upper and lower fittings 19A.
Further, in FIG. 2, the first floor building units 12 </ b> I to 12 </ b> L of the first floor building units 12 have two temporary columns 16 </ b> A that are erected on one short side of the four columns 16. Other than that, it is the same as the first floor building units 12E-12H.
Such first-floor building units 12A to 12L are arranged side by side with temporary columns 16A gathered together.
[0013]
FIG. 5 shows the relationship between the temporary column 16A and the fitting 19A.
In this figure, the fitting 19A forms a corner portion 20 composed of two upper beams 17 that are perpendicular to each other among four upper beams that form a plane quadrangle in a rectangular parallelepiped building unit. . Further, the fitting 19A which is the corner portion 20 connects the upper surface portion 21 and the lower surface portion 22 which are both planar pentagons and are parallel to each other, and the outer edge portions of the upper and lower surface portions 21 and 22 from the channel material. The upper beam 17 and a continuous flat L-shaped side surface portion 23 are formed. The upper surface portion 21 is provided with a bolt hole 21A for connecting to the reinforcing beam, and the lower surface portion 22 is formed. Two bolt holes 22A for connecting to the temporary pillar 16A are drilled, and a contact member 24 is fixed to each surface of the side surface portion 23 at right angles to each other by, for example, welding. 24 A of bolt holes (only three are shown) are drilled through the side surface portion 23.
The temporary column 16 </ b> A includes a prismatic column main body 25 and a top plate 26 fixed to the upper portion of the column main body 25. Two bolt holes 26A for connecting to the lower surface portion 22 of the fitting 19A are formed in the top plate 26 corresponding to the bolt holes 23A described above, and notches 25A are formed on two side surfaces of the column body 25. Is provided. In other words, the temporary pillar 16A and the fitting 19A can be attached to and detached from the bolt main body 25 through the two bolts 27 (only one is shown) inserted through the bolt holes 22A and 26A and the notch opening 25A. This is done by tightening and removing the nut 28 screwed into the bolt 27.
Although not shown, the lower side of the temporary column 16A is substantially the same.
[0014]
6 and 7 show a state in which the fitting 19A to which the temporary column 16A is attached and detached, that is, the corner portion 20 are gathered together.
In these drawings, a connecting member 29 having a cross-shaped cross section as shown in FIG. 8 is interposed between the fittings 19A. The connecting member 29 is a combination of two rectangular metal plates 29A fitted together at the center cutout portion 29B so that they are orthogonal to each other. It is connected. A similar bolt hole 29C is formed in the connecting member 29 at a position corresponding to the bolt hole 24A of the contact member 24 attached to the fitting 19A. Each fitting 19A is connected to each other via the connecting member 29 by a bolt 30 inserted into the bolt holes 24A and 29C and a nut 31 screwed into the bolt 30. Accordingly, the total eight upper beams 17 connected to the fittings 19A are regarded as continuous large beams intersecting in a cross shape by connecting the corner portions 20.
In the figure, 32 is a diaphragm erected between the upper and lower surface portions 21 and 22 of the fitting 19A.
[0015]
On the other hand, reinforcing beams 14 made of H steel are arranged along the four upper beams 17A on the short side of the eight upper beams 17 in the same spanning direction. Each fitting 19 is connected by a bolt hole drilled in the reinforcing beam 14, a bolt 33 inserted through the bolt hole 21A, and a nut 34 screwed into the bolt hole 21A.
FIG. 9 is a plan view showing a state in which the reinforcing beam 14 is disposed above the first-floor building unit 12.
A plurality of types of reinforcing beams 14 having different length dimensions are prepared, and the reinforcing beams 14A to 14F of the reinforcing beams 14 are arranged on the first floor building unit 12 along the outer wall of the first floor portion of the unit building 10. Further, the reinforcing beams 14I to 14J are disposed on the upper beams on the short sides of the first floor building units 12 facing each other. As the reinforcing beam 14 parallel to the long side of the first floor building unit 12, the reinforcing beam 14K is disposed on the upper beam on the long side opposite to each other of the first floor building units 12B and 12C, and the reinforcing beam 14L. Is between the reinforcing beams 14G and 14F, and is spanned in the middle of the short side direction of the first floor building units 12I and 12K, and the reinforcing beam 14M is between the reinforcing beams 14G and 14F and the first floor building units 12J and 12L. It is bridged in the middle of the short side direction. That is, the reinforcing beams 14L and 14M and the reinforcing beams 14H to 14J intersect at positions away from the corners 20 of the first floor building units 12E to L.
Further, such a crossing portion of the reinforcing beams 14 is as shown in FIG.
In this figure, the reinforcing beam 14 disposed in the center and continuous in the front and back direction of the paper surface is provided with a contact member 35 made of a metal plate welded between the upper and lower flanges. The contact members 35 are also provided at the ends of the other two reinforcing beams 14 connected to each other. These opposing contact members 35 are connected by bolts 36 and nuts 37.
In FIG. 9, the upper beam of the first floor building unit 12 is not shown for the sake of simplicity.
[0016]
In this embodiment, a wide space without an obstacle is formed inside the first-floor building units 12E to 12L as follows.
First, at the factory, the first-floor building units 12E to 12L are spanned between the four pillars 16 standing at the four corners and the upper ends of the four pillars 16 to form an upper planar square in the rectangular parallelepiped. Including four upper beams 17, four lower beams 18 spanned between the lower ends, and fittings 19, 19 A connecting these column beams. One or two detachable temporary pillars 16A were set, and at the construction site, the building units 12E to 12L were assembled by combining the corners 20 on which the temporary pillars 16A were erected together. The corner portions 20 are connected to each other via a connecting member 29 having a cross-shaped cross section, and then the temporary pillar 16A is removed from each corner portion 20 to form wide spaces without obstacles in the building units 12E to 12L.
[0017]
According to this embodiment, there are the following effects.
That is, in the first-floor building units 12E to 12L, the fittings 19A, which are the four corner portions 20 on which the temporary pillars 16A are erected, are connected to each other by the connecting member 29 having a cross-sectional cross section. A total of eight upper beams 17 forming the portion 20 can be regarded as one large beam having a cross shape. For this reason, even if the temporary pillar 16A is removed from each corner 2, the strength of the building units 12E to 12L is secured with this large beam, so that a conventional reinforcing frame can be eliminated, and the building units 12E to 12L A large space without an obstacle can be formed inside. Therefore, the degree of freedom in floor plan design can be improved.
[0018]
In addition, above the collected building units 12E to 12L, four upper beams on the short side of the total eight upper beams 17 forming each corner portion 20 are set in the same bridging direction. Since the reinforcing beams 14H to 14J are disposed along 17A, and these reinforcing beams 14H to 14J and each corner 20 are connected to each other, the four upper beams 17A are reinforced by the reinforcing beams 14H to 14J. Therefore, the strength of the building units 12E to 12L can be further improved.
[0019]
Since the reinforcing beams 14L and 14M perpendicular to the reinforcing beams 14H to 14J are disposed above the building units 12E to 12L, the strength of the building units 12E to 12L can be further improved.
[0020]
Further, since the reinforcing beams 14L and 14M and the reinforcing beams 14H to 14L intersect and are connected to each other at positions away from the corners 20, the intersecting positions of the reinforcing beams 14 where the vertical load is most concentrated are each. By being away from the corner 20, even when the second-floor building unit 13 is arranged side by side, it is possible to avoid a vertical load from being transmitted to the corner 20 where the column is not erected, and the connection member 29 is used for connection. It is possible to ensure the durability of the formed part.
[0021]
Further, since each corner 20 is formed of a fitting 19A that connects the ends of the upper beam 17, the bolt hole 22A for attaching the temporary pillar 16A, the bolt hole 24A for attaching the connecting member 29, etc. Since it is only necessary to provide the fitting 19A, such a bolt hole 22A, 24A, etc. is easier to work than directly provided at the end of the long and heavy upper beam 17, and the production of the building unit Can be performed efficiently.
[0022]
Further, since the connecting member 29 only needs to join two metal plates 29A having the same shape, the connecting member can be easily manufactured.
[0023]
Moreover, the large space without an obstruction can be formed inside the building units 12E to 12L by arranging the unit type buildings 12E to 12L in parallel according to the procedure described above.
[0024]
In addition, this invention is not limited to the said embodiment, Other structures etc. which can achieve the objective of this invention are included, The deformation | transformation etc. which are shown below are also contained in this invention.
For example, in the above-described embodiment, the corner 20 is formed of the fitting 19A. However, the corner according to the present invention is such that, for example, two upper beams are directly connected to each other at a right angle. It is not necessary to use a fitting.
However, the above-mentioned effect may be obtained by using a fitting.
[0026]
And in the said embodiment, although the wide space without an obstruction was formed in the inside by eight 1st floor building units 12E-12L, it is not limited to especially eight, At least four building units As long as it is gathered together. Furthermore, the building units at this time are not limited to being arranged in parallel on the first floor, but may be arranged in parallel on the second floor or higher floors, for example.
[0027]
【The invention's effect】
As described above, according to the present invention, since the four corners on which the temporary pillars are erected are connected to each other by the connecting member having a cross-sectional cross section, a total of eight corners forming each corner are obtained. The beam can be considered as a large cross-shaped continuous beam. Therefore, even if the temporary column is removed from each corner, the strength of each building unit is secured with this large beam. Is unnecessary, and a large space free of obstacles can be formed inside each building unit, thereby improving the degree of freedom in floor plan design.
[Brief description of the drawings]
FIG. 1 is an overall perspective view schematically showing a unit building according to an embodiment of the present invention.
FIG. 2 is a plan view schematically showing a first floor portion of a unit type building.
FIG. 3 is a perspective view showing a normal building unit constituting a unit type building.
FIG. 4 is a perspective view showing a building unit constituting a unit type building and provided with a temporary column.
FIG. 5 is an exploded perspective view with a part broken away showing a main part of a building unit provided with a temporary pole.
FIG. 6 is a plan view showing a main part of the unit type building.
FIG. 7 is a longitudinal sectional view showing a main part of a unit type building.
FIG. 8 is a perspective view showing a connecting member.
FIG. 9 is a plan view showing a state in which reinforcing beams are arranged on the first floor portion of the unit type building.
FIG. 10 is a longitudinal sectional view showing connecting portions of reinforcing beams orthogonal to each other.
[Explanation of symbols]
10 Unit type building 12E-12L Building unit 14 Reinforcement beam 16 Column 16A Temporary column 17 Upper beam 19A Joint fitting 20 Corner

Claims (3)

A unit type building that is built by combining at least four rectangular parallelepiped building units produced at a factory in a horizontal direction at a construction site,
The at least four building units include four pillars erected at four corners, and four upper beams spanning between upper ends of the four pillars to form an upper planar square in the rectangular parallelepiped shape. The corners of the plane quadrangle are gathered together and combined, and these corners are connected to each other via a connecting member having a cross-sectional cross section,
This connecting member is disposed within the height dimension of a total of eight upper beams that form the respective corners,
Of the four pillars, at least the pillars erected at the corners are detachable temporary pillars,
Reinforced above the collected four building units is to pass through the corners along the four upper beams having the same bridging direction among the eight upper beams at each corner. Beams are arranged,
The reinforcing beam and the corner are connected to each other,
Above the four building units, another reinforcing beam orthogonal to the reinforcing beam is disposed,
The separate building and the reinforcing beam intersect each other at a position away from each corner and are connected to each other.   The unit type building according to claim 1, wherein the corner portion is formed of a fitting that connects ends of the upper beams. At the factory, at least four rectangular parallelepiped building units, four pillars standing at the four corners, and four spanning between the upper ends of these four pillars to form the upper planar square in the rectangular parallelepiped And includes a column erected at at least one corner of the plane quadrangle as a removable temporary column,
At the construction site, the building units are combined by combining the corners on which the temporary pillars are erected, and then the assembled corners are connected to each other via a connecting member having a cross-sectional cross shape. Then, the building method of the unit type building to be built by removing the temporary pillar from each corner to form a wide space without obstacles in each building unit,
The connecting member is disposed within the height dimension of a total of eight upper beams that form the corners,
Reinforcement beams above the four collected building units so as to pass through the corners along the four upper beams having the same crossing direction among the eight upper beams at each corner. Arrange
The reinforcing beam and the corner are connected to each other ,
Another reinforcing beam orthogonal to the reinforcing beam is disposed above the four building units,
A construction method for a unit type building, characterized in that the another reinforcing beam and the reinforcing beam are crossed at a position apart from each corner and connected to each other .

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