JP4072274B2 - Building unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a building unit constituting a unit type building.
[0002]
[Background]
Conventionally, as a building unit constituting a unit type building, there are four pillars erected at the four corners, and two long side ceiling beams and a short side ceiling erected between the upper ends of these pillars. A rectangular parallelepiped having a frame composed of a beam and two long-side floor beams and short-side floor beams installed between the lower ends of the columns is known.
[0003]
Usually, such building units are arranged on the foundation in a plurality of rows in the short side direction and the long side direction to form the first floor portion of the unit type building. As shown in the figure, there are cases where unit-type buildings are built in a row in the short side direction.
[0004]
In such a building for a narrow area, as a construction member (a frame of a ramen structure composed of columns and beams) along the long side of the building unit 100, a pair of columns, between the upper ends of these columns Therefore, the subframe 20 is incorporated into a specific location in the building unit 100 in consideration of earthquake resistance. .
[0005]
As shown in FIGS. 5A to 5C, such a subframe 20 connects an intermediary column erected between a ceiling beam and a floor beam on one long side, and the intercolumn and one of the columns. In addition to being composed of a pair of upper and lower cross members and braces installed in the part surrounded by each cross member, as shown in (D), the inter-column and one of the columns are connected by a lattice (truss) material There is a configuration one.
[0006]
[Problems to be solved by the invention]
By the way, even when the building unit 100 is reinforced by the sub-frame 20 described above, there is a case where the building unit 100 is felt during a storm, and there is a demand for further reinforcing the building unit.
However, when the number of the subframes 20 is increased more than the current state, there is a problem that the size of the window is limited or the sleeve wall protruding to the living room increases, so that it cannot be easily increased.
[0007]
An object of the present invention is to provide a building unit that can be reinforced without increasing the number of subframes.
[0008]
[Means for Solving the Problems]
The building unit of the present invention is a building unit 10 that is reinforced by a subframe 20 that includes a stud 21 and that is adjacent to the stud, as described with reference to the embodiment described below. At the position, a joint portion 30 to be joined to the lower foundation 60 is provided, and the foundation and the joint portion are joined by an anchor bolt 50 whose upper side is attached to the joint portion and whose lower side is embedded in the foundation. The stud is erected on the upper flange 16 of the floor beam made of channel material, the joint is provided on the lower flange 17 of the floor beam, and the joint of the lower flange is provided at the portion provided with the joint. The channel member is provided with an extended portion 41 extending toward the opening side, and a pair of gussets are provided between the upper and lower flanges of the floor beam so as to sandwich the joint portion from the longitudinal direction of the floor beam. Plate 42 is provided with the extended portion and these gusset plate is characterized in that it is formed by the reinforcing member 40 integrally.
[0009]
According to the present invention, by joining the joint portion provided at a position where the studs are erected on foundation, for studs improves the rigidity of the building unit acts as a structural material, add a sub-frame The building unit is securely reinforced.
Moreover, since the stud is erected on the upper flange of the floor beam, there is no stud in the opening space of the floor beam made of channel material. Therefore, in the lower flange of the floor beam, the anchor bolt can be attached using this wide opening space. Moreover, since the extension part extended in the opening side in a channel material is provided in the site | part in which the junction part of a lower flange is provided, the attachment position of an anchor bolt can be set to the opening side more, and the attachment operation | work is carried out. It becomes easier.
In addition, the area around the joint is reliably reinforced by the gusset plates provided between the upper and lower flanges. In addition, since the gusset plate and the extending portion are integrally formed of the reinforcing member, the extending portion can be reliably reinforced. Each gusset plate and the extending portion are easily formed on the long-side floor beam simply by welding after fitting the reinforcing member.
[0011]
At this time, the anchor bolt may be attached to the joint portion in advance, and a sheath tube 61 into which the anchor bolt is inserted may be embedded in advance, and the grout material 62 may be injected into the sheath tube.
In such a case, since the lower part of the anchor bolt is embedded in the grout material in the sheath tube at the same time as placing on the foundation of the building unit, the work efficiency can be further improved, and the hardening of the grout material is also possible. Thus, the foundation and the joint can be reliably joined via the anchor bolt.
[0014]
Further, in the building unit of the present invention, it is desirable that a reinforcing plate 43 is straddled between the portion where the joint portion of the lower flange is provided and the extension portion, and the joint portion and the extension portion are further reinforced. Thus, buckling of the floor beam can be prevented more reliably.
[0015]
Further, in the above, the stud is erected on the floor beam, the joint is provided on the floor beam, and the position where the joint is provided and the position where the stud is erected are described above. It is desirable that it is slightly shifted in the longitudinal direction of the floor beam.
In such a case, in the floor beam, the position is different between the portion that is reinforced by the studs being erected and the portion that is reinforced by providing the joint and joining the lower structure. The beam will be reinforced at two different parts. Therefore, the floor beam is hardly bent and its deformation performance is improved.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, each embodiment of the present invention will be described with reference to the drawings.
[First Embodiment]
FIG. 1 is a perspective view from below showing a framework of a building unit 10 according to the present embodiment, and FIGS. 2 and 3 are a partially broken perspective view and a longitudinal sectional view showing a main part of the building unit 10.
[0017]
The framework of the building unit 10 includes four pillars 11 erected at the four corners, two long-side ceiling beams 12 and short-side ceiling beams 13 installed between the upper ends of the pillars 11, It is a rectangular parallelepiped shape constituted by two long-side floor beams 14 and short-side floor beams 15 installed between the lower ends of the columns 11. Each beam 12-15 is made of a channel material having a C-shaped cross section.
[0018]
On one long side of such a framework, a pillar 21 is erected between the long side ceiling beam 12 and the long side floor beam 14, and between the pillar 21 and one pillar 11 is parallel to each other. A pair of horizontal members 22 are erected at intervals in the vertical direction, and a pair of braces 23 are installed diagonally in a region surrounded by the horizontal members 22. That is, the sub-frame 20 according to the present invention is formed by the intermediate pillars 21, the cross members 22, and the braces 23.
[0019]
The intermediate column 21 of the subframe 20 is fixed to the upper flange 16 of the long side floor beam 14 by welding or the like. The lower flange 17 of the long-side floor beam 14 is provided with a joint 30 having a notch 31 at a position corresponding to the stud 21. At this time, an extending portion 41 is provided on the outside of the joint portion 30 so as to extend horizontally from the lower flange 17, and the notch portion 31 extends in the width direction of the lower flange 17 including the extending portion 41. It is drilled in the approximate center.
[0020]
Further, a pair of gusset plates 42 are fixed between the upper and lower flanges 16 and 17 of the long-side floor beam 14 by welding or the like so as to sandwich the joint portion 30 and the extending portion 41. The web 18 of the side floor beam 14 is also brought into contact with and welded.
[0021]
Here, each gusset plate 42 and the extending portion 41 are integrally formed by a U-shaped reinforcing member 40 manufactured by bending a sheet metal having the same thickness as the long-side floor beam 14. A thick reinforcing plate 43 is straddled between the extended portion 41 and the joint portion 30, and a screw hole 44 is formed in the reinforcing plate 43 at a position corresponding to the notch portion 31. ing.
[0022]
The upper part of the anchor bolt 50 that passes through the notch 31 of the joint portion 30 is screwed into the screw hole 44. The anchor bolt 50 is the same as the anchor bolt 19 (FIG. 1) used when joining the four corners of the building unit 10 to the foundation 60, and is securely fixed to the joint portion 30 by a nut 51 screwed from above. ing.
[0023]
On the other hand, in the foundation 60 on which the building unit 10 is placed, a sheath tube 61 is embedded in advance at a position corresponding to the anchor bolt 50, and a grout material 62 is injected into the sheath tube 61. The anchor bolt 50, the grout material 62, the sheath tube 61, and the foundation 60 are joined together by hardening of the 62, that is, the building unit 10 and the foundation 60 that is a structure are joined together via the anchor bolt 50. become.
[0024]
In this embodiment, the building unit 10 transported from the factory to the building construction site is lifted by a crane or the like and placed on the foundation 60. When the building unit 10 is lifted, the anchor bolt 50 is attached to another anchor. Attached to the building unit 10 together with the bolts 19 in advance.
[0025]
On the foundation 60 side, when placing concrete, the sheath tube 61 is arranged in advance in the mold so that the sheath tube 61 is embedded in the foundation 60. The grout material 62 is injected into the sheath tube 61 immediately before the building unit 10 is placed.
[0026]
After the injection of the grout material 62, the building unit 10 is placed on the foundation 60, and the lower side of the anchor bolt 50 is buried in the grout material 62. As described above, when the grout material 62 is cured, the portion immediately below the intermediate pillar 21 is joined to the foundation 60, so that the intermediate pillar 21 acts as a structural material having sufficient proof stress.
[0027]
In FIG. 3, there is a gap between the building unit 10 and the foundation 60, because the four corners of the building unit 10 are placed on the foundation 60 via height level adjustment bolts.
[0028]
According to this embodiment, there are the following effects.
1) Since the joint part 30 is provided directly under the intermediate pillar 21 of the subframe 20 and this joint part 30 is joined to the foundation 60, the rigidity of the building unit 10 is improved by causing the intermediate pillar 21 to act as a structural material. Can do. Therefore, the building unit 10 can be reliably reinforced without adding the subframe 20, and the shaking during a storm can be reduced.
[0029]
2) Since the joint 30 and the foundation 60 of the building unit 10 are joined via the anchor bolt 50, the joining work is an operation of joining the four corners of the building unit 10 to the foundation 60 via the anchor bolt 19. It can be done simultaneously and efficiently.
[0030]
3) In this joining operation, since the anchor bolt 50 is attached to the building unit 10 in advance, the lower side of the anchor bolt 50 is placed in the grout material 62 in the sheath tube 61 simultaneously with the mounting of the building unit 10 on the foundation 60. It can be buried and work efficiency can be further improved. In addition, the foundation 60 and the joint portion 30 can be reliably joined via the anchor bolt 50 by the hardening of the grout material 62.
[0031]
4) Since the stud 21 is erected on the upper flange 16 of the long-side floor beam 14, there is no stud 21 in the opening space of the long-side floor beam 14 made of a channel material. Therefore, in the lower flange 17, the screwing operation of the nut 51 to the anchor bolt 50 can be facilitated using this wide opening space.
[0032]
5) Further, since the extended portion 41 extending to the opening side of the channel material is provided at the portion where the joint portion 30 of the lower flange 17 is provided, the nut 51 can be screwed more on the opening side. Work can be made easier.
[0033]
6) Since the pair of gusset plates 42 are provided between the upper and lower flanges 16 and 17 of the long side floor beam 14 so as to sandwich the joint 30 from the longitudinal direction of the long side floor beam 14. The periphery of the joint 30 can be reliably reinforced, and even if the intermediary column 21 is erected on the upper flange 16, there is no fear that the upper flange 16 is deformed or the entire long side floor beam 14 is buckled.
[0034]
7) At this time, since each gusset plate 42 and the extended portion 41 are integrally formed by the reinforcing member 40, the extended portion 41 can also be reliably reinforced. Further, each gusset plate 42 and the extending portion 41 need only be welded after the reinforcing member 40 is fitted, and can be easily provided on the long-side floor beam 14.
[0035]
8) Further, since the reinforcing plate 43 is straddled between the joint portion 30 and the extended portion 41, the joint portion 30 and the extended portion 41 can be further reinforced, and buckling of the long side floor beam 14 and the like. Can be prevented more reliably.
[0036]
9) Moreover, the number of subframes 20 used in the entire building can be reduced by joining the joint portion 30 and the foundation 60 to reinforce the building unit 10. That is, for example, in the building unit shown in FIG. 5A, the number of subframes 20 can be reduced to one, and the member cost can be reduced.
[0037]
[Second Embodiment]
In the building unit 10 according to the second embodiment of the present invention, as shown by the two-dot chain line in FIG. 1, the anchor bolt 50, that is, the joint portion 30 (see FIG. 2) is from the position where the stud 21 is erected. Also, the long-side floor beam 14 is slightly shifted from the center in the longitudinal direction.
[0038]
Therefore, in the case of such a configuration, there are the following effects in addition to the effects 1) to 9) described above.
10) In the long-side floor beam 14, the position where the joint portion 30 is provided and the position where the stud 21 is erected are slightly shifted in the longitudinal direction of the long-side floor beam 14. In the side floor beam 14, reinforcement is performed at two different portions, that is, a portion that is reinforced by standing the studs 21, and a portion that is reinforced by providing the joint portion 30 and joining the lower foundation 60. it can. Therefore, the long side floor beam 14 can be remarkably difficult to bend, and its deformation performance can be improved.
[0039]
Note that the present invention is not limited to the above-described embodiments, and includes other configurations that can achieve the object of the present invention, and includes the following modifications and the like.
For example, in each of the above embodiments, the subframe 20 includes the cross member 22 and the brace 23. However, the subframe according to the present invention is not limited to this, and as shown in FIG. The type having a lattice (truss) structure may be used.
[0040]
Further, the reinforcing structure around the joint portion 30 is arbitrary, and the shapes of the reinforcing plate 43, the gusset plate 42, and the like can be appropriately changed in the implementation.
[0042]
And even when the anchor bolt 50 is made to project from the foundation 60 in advance, it is included in the present invention. However, in such a case, it is preferable that the notch portion 31 has a long hole shape so that the anchor bolt 50 and the notch portion 31 can be easily inserted, and the screw hole 44 needs to be a through hole. is there. That is, a plurality of nuts 51 are prepared, and the joints 30 and the like are sandwiched from above and below by these nuts 51.
[0044]
【The invention's effect】
As described above, according to the present invention, by joining the joint provided at the position where the stud is erected to the structure below, the stud acts as a structural material and the rigidity of the building unit is improved. Therefore, there is an effect that the building unit can be reliably reinforced without adding a subframe.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of the present invention.
FIG. 2 is a partially broken perspective view showing a main part of the embodiment.
FIG. 3 is a longitudinal sectional view showing a main part of the embodiment.
FIG. 4 is a plan view schematically showing a conventional technique.
FIG. 5 is a front view schematically showing a plurality of conventional techniques.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Building unit 14 Long side floor beam 16 which is a floor beam Upper flange 17 Lower flange 20 Subframe 21 Intermediary column 30 Joint part 40 Reinforcement member 41 Extension part 42 Gusset plate 43 Reinforcement plate 50 Anchor bolt 60 Foundation which is a structure 61 sheath tube 62 grout material

Claims (4)

A building unit reinforced with a subframe formed including a stud,
In the vicinity position corresponding to the stud, a joint portion to be joined to the lower foundation is provided,
The foundation and the joint are joined with anchor bolts whose upper side is attached to the joint and whose lower side is embedded in the foundation ,
The stud is erected on an upper flange of a floor beam made of a channel material, the joint is provided on a lower flange of the floor beam, and a channel material is provided at a portion where the joint of the lower flange is provided. An extension portion extending on the opening side is provided,
Between the upper and lower flanges of the floor beam, a pair of gusset plates are provided so as to sandwich the joint from the longitudinal direction of the floor beam,
A building unit characterized in that these gusset plates and the extending portion are formed of an integral reinforcing member.   2. The building unit according to claim 1, wherein the anchor bolt is attached in advance to the joint portion, and a sheath tube into which the anchor bolt is inserted is embedded in the foundation, and a grout material is injected into the sheath tube. A building unit characterized by that.   The building unit according to claim 1 or 2, wherein a reinforcing plate is straddled between a portion of the lower flange where the joint portion is provided and the extending portion.   The building unit according to any one of claims 1 to 3, wherein the stud is erected on a floor beam, the joint is provided on the floor beam, and the position where the joint is provided, and the A building unit characterized in that a position where a stud is erected is slightly shifted in a longitudinal direction of the floor beam.

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