JPH11343674A - Connecting structure of outer periphery of unit type building, and its connecting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To retrench a field work and to improve productivity and physical distributing ability. SOLUTION: A down floor side base plate 56 whose extension part 56A is extendingly located in a gap 32 between a lower floor side outer wall member 24 and a lower floor side ceiling large beam 20 is fixed to the upper end part of the lower floor side column of a lower floor unit 10. The lower end of a connecting bolt 78 is inserted into the extension part 56A, and a lower floor side connection nut 82 is threadedly engage with it. Similarly a bolt inserting through hole 74 in the extension part 72A of an upper floor side base plate 72 fixed to the lower end part of an upper floor side column 38 of the upper floor unit 12 is inserted into the upper end part of a connecting bolt 78, and an upperfloor side connecting nut 86 is threadedly engaged on it. Connecting work can therefore be carried out outside the unit, and thus the retrenchment of the field work and the improvement of productivity and physical distribution can be realized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure and a connection method of a unit-type building for connecting a lower floor unit and an upper floor unit at their outer peripheral portions.

[0002]

2. Description of the Related Art In general, a unit-type building is constituted by connecting a plurality of units to each other vertically and horizontally. In a unit-type building of this type, when the lower-floor unit and the upper-floor unit are connected to each other at their outer peripheral portions, the following method and the like have conventionally been adopted.

FIG. 5 is a schematic plan view of the second floor of a unit house 100, FIG. 6 is an enlarged plan view of the corner of the unit house 100, and FIG. Shows a vertical cross-sectional view at the protruding corner.

As shown in these figures (particularly, FIG. 7), the ceiling girders 104 of the lower floor unit 102 and the floor girders 108 of the upper floor unit 106 are both channel steel. The longitudinal end of the floor girder 108 of the upper floor unit 106 is fixed to the side surface of the lower end of the column (post) 110, and the longitudinal end of the ceiling girder 104 of the lower floor unit 102 is the upper end of the column. It is fixed to the side of the part. The upper flange 104A of the ceiling beam 104 and the lower flange 108A of the floor beam 108 are connected to each other by a connecting bolt 114 and a connecting nut 116 via a spacer 112 at a position near the column 110. Thereby, the lower floor unit 102 and the upper floor unit 106 are vertically connected.

When the above-described connection structure and connection method are adopted, the lower floor unit 102 and the upper floor unit 1
06, the outer wall panel 118 is pre-installed at the factory, so the connection bolt 114 and the connection nut 11
6 is performed from the inside of the living room.
Therefore, the following problem occurs. First, in order to secure a work space, a part of the floor plate 120 of the upper floor unit 106 has to be cut out in advance, and another floor plate 122 must be attached to the cut-out portion on site. The hatched portion in FIG. 5 is the portion where the floor plate 122 is attached on site.

[0006] Further, as described above, since the portion for attaching the floor plate 122 to the site increases, the kitchen unit 1
So-called box members such as 24, unit bus 126, and push-in unit 128 must also be installed on site.

For these reasons, when the above-described connection structure and connection method are employed, there is a problem that the number of field operations increases. Further, problems such as a decrease in productivity due to complicated production instructions and a decrease in logistics due to the complexity of a material delivery system to the site arise.

The present invention has been made in view of the above-described circumstances, and has as its object to provide a connection structure and a connection method for a unit-type building which can reduce on-site work and improve productivity and logistics. .

[0009]

According to the first aspect of the present invention, there is provided a lower-floor pillar arranged at a predetermined position on an outer peripheral portion, and a lower-floor ceiling girder fixed to a side surface of an upper end of the pillar. A lower-floor outer wall material arranged in parallel with a predetermined gap with respect to the ceiling girder, and a lower-floor unit configured to include, and an upper-floor column disposed at a predetermined position in the outer peripheral portion. An upper floor floor girder fixed to the side surface of the lower end of the pillar, and a predetermined gap is provided between the upper floor girder and the floor girder, and the lower edge of the outer wall is located above the lower end surface of the pillar. An upper-floor outer wall material offset by a predetermined distance, and an upper-floor unit configured to include the outer-floor unit, and an outer-peripheral-part connecting structure for connecting the upper-floor units at the outer peripheral parts of the two units; At the upper end of the lower floor pillar, an overhang is provided in the gap between the lower floor ceiling girder and the lower floor outer wall material An upper floor base member to which a floor base member is fixed and which has a projection at a lower end of an upper floor column of the upper floor unit in a gap between an upper floor floor beam and an upper floor outer wall material. By fastening the overhang of the lower floor base member and the overhang of the upper floor base member with fasteners from outside the unit, the outer periphery of the lower floor unit and the outer periphery of the upper floor unit are fixed. It is characterized by being connected.

[0010] According to a second aspect of the present invention, in the outer peripheral portion connecting structure of the unit type building according to the first aspect, the fastener has external threads formed on outer peripheral surfaces at both ends in the axial direction. It is characterized by comprising a connection bolt and a pair of connection nuts screwed to each end of the connection bolt in the axial direction.

According to the present invention, the lower pillars arranged at a predetermined position on the outer periphery, the lower ceiling girders fixed to the side surfaces of the upper ends of the pillars, A lower-floor unit, comprising: a lower-floor outer wall material disposed in parallel with a predetermined gap therebetween; an upper-floor column disposed at a predetermined position on the outer peripheral portion; and a lower end of the column. The upper floor floor girders fixed to the side surfaces of the floor girder are arranged in parallel with a predetermined gap with respect to the floor girders, and the lower edge of the outer wall is offset by a predetermined distance above the lower end surface of the pillar. An upper-floor outer wall material, and an upper-floor unit configured to include the upper-floor unit, and an outer-peripheral-part connecting method of the unit-type building for connecting the lower-floor unit with the lower-floor unit after the lower-floor unit is installed. In the lower base member fixed to the upper end of the floor pillar, the lower ceiling girder and the lower floor Insert the lower end of the connection bolt with the male screw formed on the outer peripheral surface of both ends in the axial direction into the overhanging portion that protrudes into the gap between the wall material, and attach the lower floor connection nut to the lower end. A first step of screwing, and an overhang extending in a gap between the upper floor beam and the upper outer wall material in the upper base member fixed to the lower end of the upper pillar. A second step of mounting the upper floor unit on the lower floor unit so that the upper end of the connection bolt is inserted into the upper portion, and an upper edge of the lower floor outer wall material and a lower edge of the upper floor outer wall material. And a third step of screwing an upper floor connection nut to an upper end of the connection bolt from a gap between the upper and lower floors.

Hereinafter, the operation of the first aspect of the present invention will be described through a description of an assembling procedure for connecting the lower floor unit and the upper floor unit.

First, a lower floor pillar arranged at a predetermined position on the outer periphery, a lower ceiling girder fixed to the side surface of the upper end of the pillar, and a predetermined gap from the ceiling girder are opened. A lower floor unit including a lower floor outer wall material arranged in parallel is installed. In the state after the lower-floor unit is installed, the overhang of the lower-floor base member fixed to the upper end of the lower-floor column projects into the gap between the lower-floor ceiling beam and the lower-floor outer wall material. Have been.

Next, the upper floor unit is installed on the lower floor unit. The upper floor unit includes an upper floor pillar arranged at a predetermined position on the outer peripheral portion, an upper floor floor girder fixed to a side surface of a lower end portion of the pillar, and a predetermined gap with the floor girder. And an upper floor side outer wall material in which the outer wall lower edge is offset by a predetermined distance above the lower end surface of the pillar, and the lower edge of the upper wall is further arranged at the lower end of the upper floor pillar. The upper floor base member with the overhang is fixed to the gap between the upper floor floor girders and the upper floor outer wall material. It is installed while being positioned so as to be superimposed on the member in plan view.

In the state where the upper floor unit is installed on the lower floor unit, the lower edge of the upper floor outer wall is offset by a predetermined distance above the lower end face of the upper floor side pillar, so that the lower floor side A predetermined gap is formed between the upper edge of the outer wall and the lower edge of the upper floor side outer wall. Further, as described above, since the lower floor outer wall of the lower floor unit is disposed in parallel with the lower floor ceiling girder with a predetermined gap, the space between the lower floor outer wall and the lower floor ceiling girder is different. Also, a predetermined gap is formed.
Furthermore, since the upper floor outer wall of the upper floor unit is arranged in parallel with the upper floor floor girder with a predetermined gap, a predetermined space is also provided between the upper floor outer wall and the upper floor floor girder. A gap is formed.

Then, next, utilizing these gaps,
The overhanging portion of the lower floor side base member and the overhanging portion of the upper floor side base member are fastened with fasteners from outside the unit (that is, outside the outer wall). Thereby, the outer peripheral part of the lower floor unit and the outer peripheral part of the upper floor unit are connected.

As described above, according to the present invention, the outer peripheral portion of the lower floor unit and the outer peripheral portion of the upper floor unit can be connected by work from outside the unit. Therefore, there is no need to secure a work space inside the unit (that is, inside the living room). Therefore, a part of the floor plate of the upper floor unit is cut out in advance, and another floor plate is attached to the cut-out portion at the site, or a part of the ceiling plate of the lower floor unit is cut in advance. It is not necessary to attach another ceiling panel to the cut-out portion at the site, and it is possible to assemble the floor panel or the ceiling panel in the factory production process (attach to the factory). Become. As a result, so-called box members, such as a kitchen unit, a unit bath, and a closet unit, can be assembled to the unit in advance at the factory.

According to the second aspect of the present invention, the outer peripheral portion of the lower floor unit and the outer peripheral portion of the upper floor unit can be connected as follows. First, after the lower floor unit is installed, the lower end of the connection bolt is inserted into the overhang of the lower floor base member. Next, one connecting nut is screwed into the lower end of the connecting bolt. Next, the upper floor unit is installed on the lower floor unit. Then, the other connection nut is screwed into the upper end of the connection bolt protruding from the upper floor side base member. Thereby, the outer peripheral part of the lower floor unit and the outer peripheral part of the upper floor unit are connected.

As described above, since the connecting bolt can be inserted from above the lower floor base member, the offset amount from the upper edge of the outer wall of the outer wall frame generally fixed to the back surface of the lower floor outer wall material is particularly limited. There is no need to set a large value, and the offset amount can be set as usual. The same applies to the upper floor side outer wall material. In other words, for example, when a normal bolt is used as the connection bolt, and this is inserted from below the lower floor base member and tightened with a nut, the offset amount from the upper edge of the outer wall of the outer wall frame is at least “ A shaft length of the connecting bolt + α (margin) ”is required. However, according to the present invention, since the connecting bolt can be inserted from above the lower floor base member, there is no need to change the offset amount.

According to the third aspect of the present invention, in the first step, after the lower-floor unit is installed, the lower-floor ceiling beam is attached to the lower-floor base member fixed to the upper end of the lower-floor column. In the overhanging part that overhangs the gap between the lower floor side outer wall material,
The lower ends of the connection bolts having external threads formed on the outer peripheral surfaces of both ends in the axial direction are inserted, and the lower floor connection nut is screwed into the lower ends.

Next, in a second step, the upper floor unit is installed on the lower floor unit. At this time, the upper floor base member fixed to the lower end of the upper floor side pillar has an overhanging portion that extends in the gap between the upper floor floor girder and the upper floor outer wall material. The upper-floor unit is installed on the lower-floor unit while being positioned so that the upper end of the connection bolt that is screwed into the base member and is in the upright state is inserted.

Next, in a third step, from the gap between the upper edge of the lower floor outer wall material and the lower edge of the upper floor outer wall material, that is, from the outside of the unit (outside of the outer wall), the upper floor base is removed. The upper floor connection nut is screwed into the upper end of the connection bolt penetrating the member.
Thereby, the outer peripheral part of the lower floor unit and the outer peripheral part of the upper floor unit are connected.

As described above, according to the present invention, the outer peripheral portion of the lower floor unit and the outer peripheral portion of the upper floor unit can be connected by work from outside the unit. For this reason, it is not necessary to secure a work space inside the unit (that is, inside the living room), and the same operation as the above-described invention (the floor plate or the ceiling plate is entirely assembled in the factory production process). And so-called box members, such as a kitchen unit, a unit bath, and a closet unit, can be assembled to the unit in advance at the factory).

Further, in the present invention, since the connecting bolts having external threads formed on the outer peripheral surfaces at both ends in the axial direction are used, the connecting bolts can be inserted from above the lower floor base member. For this reason, workability is improved as compared with the case where the connecting bolt is inserted from below the lower floor base member.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a connecting structure and a connecting method of an outer peripheral portion of a unit building according to an embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a perspective view showing a state immediately before the upper floor unit 12 is installed on the lower floor unit 10, and FIG. 2 shows the lower floor unit 10 and the upper floor unit 12 connected to each other. FIG. 3 is a longitudinal sectional view showing the state of FIG.
2 shows an enlarged plan view of a protruding corner of the lower floor unit 10.

As shown in these figures, the lower-floor unit 10 includes a lower-floor unit frame 14 configured as a rectangular parallelepiped frame structure, and an outer portion of the lower-floor unit frame 14. A lower floor side outer wall panel 16 disposed on the side surface to configure a unit outer shell, a ceiling panel configuring a unit ceiling surface, and a floor panel configuring a unit floor surface,
It is constituted by.

The lower unit frame 14 will be described in more detail. The lower unit frame 14 is composed of a lower column 18 made of a steel tube column standing upright at a predetermined position on the outer periphery and an adjacent lower column 18. A lower-girder ceiling beam 20 made of a channel steel bridged between the side surfaces of the upper end portion of the lower floor column and a lower-girder floor girder made of a channel steel bridged between the lower end side surfaces of the lower column 18. (Omitted).

Note that the flange width of the lower ceiling ceiling beam 20 is set to approximately half the width dimension of the lower floor column 18, and the longitudinal end is the upper end of the lower floor column 18. It is fixed to the side of the room in the living room. Further, a plate (backing backing) 22 having an L-shaped cross section for welding a girder is provided inside the longitudinal end of the lower girder 20 (from the lower flange 20A to the web 20B). In addition, the said structure is the same also about the lower floor side girder which illustration was abbreviate | omitted.

The lower-floor outer wall panel 16 will be described in further detail. The lower-floor outer wall panel 16 is fixed to a rectangular lower-floor outer wall material 24 and to the upper and lower edges of the back surface of the lower-floor outer wall material 24, respectively. And a lower-floor stud arranged at a predetermined position on the back side of the lower-floor outer wall material 24 with the height direction of the lower-floor outer wall material 24 as a longitudinal direction. (Not shown).
A fixed gasket 30 (see FIG. 3) is fitted into the vertical joint between the adjacent lower floor outer wall members 24.

The lower-floor outer wall panel 16 is configured such that the inner end 26A of the lower-floor outer wall frame 26 on the upper edge side is formed by the lower-floor ceiling beam
And the inner end of the outer wall frame on the lower edge side is fixed to the web of the lower floor girder by fixing means such as bolts and nuts, so that the lower floor ceiling girder 20 and the lower floor girder are fixed. It is attached to the outer surface of the girder.
When the lower floor outer wall panel 16 is assembled, a gap 32 corresponding to the width of the lower floor outer wall frame 26 is formed between the lower floor outer wall member 24 and the lower floor ceiling girders 20.

On the other hand, the upper floor unit 12 is basically configured in the same manner as the lower floor unit 10. In brief, the upper floor unit 12 also has an upper floor side unit frame 34 that is schematically configured as a rectangular parallelepiped frame structure.
An upper-floor outer wall panel 36 disposed on the outer surface of the upper-floor unit body 34 to form a unit outer shell, and a ceiling panel that forms a unit ceiling surface and a floor panel that forms a unit floor surface. It is configured.

The upper-floor unit frame 34 is bridged between an upper-floor pillar 38 made of a steel tube pillar erected at a predetermined position on the outer peripheral portion and a side face of the upper end of the adjacent upper-floor pillar 38. Upper-girder ceiling girder made of channel steel (not shown) and upper-floor pillar 3
8 and an upper floor girder 40 made of channel steel bridged between the side surfaces of the lower end of the upper portion 8.

The flange width of the upper floor girder 40 is set to approximately half the width of the upper floor column 38, and its longitudinal end is the lower end of the upper floor column 38. It is fixed to the side of the room in the living room. Furthermore, the inside of the longitudinal end of the upper floor beam 40 (upper flange 40
A (from A to the web 40B) is provided with a plate (backing metal) 42 having an L-shaped cross section for welding a girder. In addition, the said structure is the same also about an upper floor side ceiling girder which illustration was abbreviate | omitted.

The upper-floor outer wall panel 36 includes a rectangular upper-floor outer wall material 44 and a generally U-shaped upper-floor outer wall fixed to the upper and lower edges of the back surface of the upper-floor outer wall material 44, respectively. It is configured to include a frame 46 and an upper floor stud 48 arranged at a predetermined position on the back side of the upper floor outer wall material 44 with the height direction of the upper floor outer wall material 44 as a longitudinal direction. In addition, a base material 50 (see FIG. 2) is provided between the cutout portion on the lower end side of the upper floor stud 48 and the upper flange 40 </ b> A of the upper floor girder 40.

The lower edge of the upper floor outer wall member 44 is offset by a predetermined distance above the lower end surface of the upper floor column 38. Therefore, in a state where the upper floor unit 12 is installed on the lower floor unit 10, the lower floor outer wall material 24
Gap 5 between the upper edge of the upper floor and the lower edge of the upper floor side outer wall material 44
2 are formed (see FIG. 2).

The upper-floor outer wall panel 36 has an inner edge of the upper-floor outer wall frame formed on the web of the upper-floor ceiling girder, and an inner end 46A of the lower-floor upper-floor outer wall frame 46 formed on the upper-floor floor. By being respectively fixed to the web 40B of the girder 40 by fixing means such as bolts and nuts, the girder 40 is attached to the outer surface of the upper floor ceiling girder and the upper floor floor girder 40.
When the upper floor outer wall panel 36 is assembled, a gap 54 corresponding to the width of the upper floor outer wall frame 46 is formed between the upper floor outer wall material 44 and the upper floor floor girder 40.

A lower base plate 56 having a generally hook shape in plan view is fixed to the upper end of the lower floor column 18 described above, and the lower base plate 56 is further mounted on the lower base plate 56. A docking plate 58 having substantially the same shape as 56 is placed. In the present embodiment,
Due to the illustration of the protruding corner of the unit house, the original function of the docking plate 58 (the function of connecting the adjacent units on the left and right) does not appear on the drawing.

The lower floor base plate 56 and the docking plate 58 extend from the lower floor column 18 so as to straddle the lower ceiling girder 20, and a part of the lower base plate 56 and the docking plate 58 are connected to the lower floor outer wall material 24. In the gap 32 between the lower ceiling ceiling beam 20 and the lower floor, it is extended as the overhang portions 56A and 58A. The overhang portion 56A of the lower base plate 56 is formed to be thicker than the upper portion of the ceiling beam 20 from the viewpoint of securing strength against wind and seismic load.

At the extended ends of the lower floor base plate 56 and the docking plate 58, substantially semicircular notches 60, 6 are formed.
2, and bolt insertion holes 64, 66 are formed in the overhang portions 56A, 58A, respectively. Bolt insertion hole 64 formed in lower floor base plate 56
Has a smaller diameter than the bolt insertion hole 66 formed in the docking plate 58.

In addition, a stacking pin 68 penetrating the docking plate 58 is provided upright at a predetermined position of the lower floor base plate 56.
A stacking pin 70 is also provided upright at a position corresponding to the protruding corner 8.

On the other hand, an upper floor side base plate 72 having a substantially hook shape in a plan view is also fixed to the lower end of the upper floor side pillar 38. The upper floor base plate 72 extends from the upper floor pillar 38 so as to straddle the upper floor floor girder 40, and a part thereof is between the upper floor outer wall member 44 and the upper floor floor girder 40. Gap 5
4 is extended as a projection 72A. This overhang 7
2A also has a bolt insertion hole 74 coaxial with and smaller than the above-described bolt insertion hole 64, and is formed thicker than a general portion from the viewpoint of securing strength against a lateral load due to wind or earthquake. I have.

The above-described lower floor base plate 56 and upper floor base plate 72 are connected by a fastener 76 with the docking plate 58 interposed therebetween.
In that sense, the fastener 76 is an element that can be grasped as a connecting tool or a connecting means in a broad sense.

As shown in FIG. 4, the fastener 76 is connected to a connection bolt 78 having external threads formed on the outer peripheral surfaces of both ends in the axial direction, and is screwed to a lower end of the connection bolt 78 via a washer 80. , And an upper floor connection nut 86 screwed into the upper end of the connection bolt 78 via a washer 84.

A disk-shaped flange portion 78A fitted into the bolt insertion hole 66 of the docking plate 58 is formed at an axially intermediate portion of the connection bolt 78. The outer diameter of the flange portion 78A is set to be larger than the inner diameter of the bolt insertion hole 64 of the lower floor base plate 56 and the bolt insertion hole 74 of the upper floor base plate 72, and the bolt insertion hole 6 of the docking plate 58 is formed.
6 is set substantially equal to the inner diameter dimension. The thickness of the flange portion 78 </ b> A substantially matches the thickness of the docking plate 58.

Further, a holding portion 78B whose outer peripheral surface is knurled is formed above the flange portion 78A of the connecting bolt 78.

Next, an assembling procedure for connecting the outer peripheral portion of the lower floor unit 10 and the outer peripheral portion of the upper floor unit 12 will be described, and the operation and effects of the present embodiment will be mentioned through the description.

First, the lower floor unit 10 is installed on a foundation (not shown). In the state where the lower floor unit 10 is installed, the overhang portion 56A of the lower floor base plate 56 fixed to the upper end of the lower floor column 18 is attached to the lower ceiling beam 2.
It protrudes into the gap 32 between the outer wall material 24 and the lower floor side. Next, the docking plate 58 is placed on the lower base plate 56. This state is the state shown in FIG. Next, the projecting portion 5 of the docking plate 58
8A and the bolt insertion hole 6 formed in the extension 56A of the lower base plate 56.
The lower end of the connection bolt 78 is inserted into the inside 4. A flange portion 78 </ b> A is formed at an intermediate portion in the axial direction of the connection bolt 78, and the outer diameter of the flange portion 78 </ b> A is set to be larger than the inner diameter of the bolt insertion hole 64 and substantially equal to the inner diameter of the bolt insertion hole 66. The flange portion 78
A is locked by abutting on the periphery of the bolt insertion hole 64 of the overhang 56A of the lower floor base plate 56.
This step corresponds to the “first step” of the present invention.

Next, a lower connecting nut 82 is screwed into the lower end (through end) of the connecting bolt 78 via a washer 80. This operation is performed by a tool (hex wrench) (not shown) from the gap 32 between the lower ceiling ceiling beam 20 and the upper edge of the lower outer wall member 24, that is, from outside the unit (outside the outer wall).
This is done using When the lower connecting nut 82 is tightened by using a tool, the connecting bolt 78 may be tightened by another tool.
Holding portion 78B is firmly grasped. This step also corresponds to the "first step" of the present invention.

In FIG. 1, the connecting bolts 78 are attached at two positions on a diagonal line. However, depending on the unit size, it is determined whether the connecting bolts 78 are two or one. I can decide.

Next, the upper floor unit 12 is installed on the lower floor unit 10. At this time, the projecting portion 72 of the upper floor base plate 72 fixed to the lower end of the upper floor pillar 38
A, the upper floor unit 12 is installed on the lower floor unit 10 while being positioned so that the upper end of the connection bolt 78 already screwed into the lower floor side base plate 56 and being erected is relatively inserted. Can be In addition, this process
This corresponds to the “second step” of the present invention.

Next, from the gap 52 between the upper edge of the lower-floor outer wall material 24 and the lower edge of the upper-floor outer wall material 44, that is, from the outside of the unit (outside of the outer wall), the bolt of the upper-floor base plate 72 An upper connection nut 86 is screwed into the upper end of the connection bolt 78 that has passed through the insertion hole 74 via a washer 84. Thereby, the outer peripheral part of the lower floor unit 10 and the outer peripheral part of the upper floor unit 12 are connected. In addition, this process
This corresponds to the “third step” of the present invention.

Thereafter, the processing of the gap 52 between the upper edge of the lower floor outer wall material 24 and the lower edge of the upper floor outer wall material 44 is performed.
Specifically, a waterproof sheet (not shown) is attached from the lower edge of the back surface of the upper floor outer wall material 44 to the upper edge of the surface of the lower floor outer wall material 24, and then a decorative frame is attached.

As described above, in the present embodiment, the outer peripheral portion of the lower floor unit 10 and the outer peripheral portion of the upper floor unit 12 can be connected by work from outside the unit. Therefore, there is no need to secure a work space inside the unit (that is, inside the living room). Therefore, the upper floor unit 12
Part of the floor panel is cut in advance, and another floor panel is attached to the cut part in place, or a part of the ceiling panel of the lower floor unit 10 is cut in advance. It is not necessary to attach another ceiling plate to the cut-out portion by attaching the ceiling plate upward, and it is possible to assemble the floor plate or the ceiling plate in the factory production process (to attach the plant). Become. For this reason, kitchen units,
A so-called box member such as a unit bath or a closet unit can also be assembled to the unit in advance at the factory. As a result, according to the present embodiment, on-site work can be reduced, and productivity and logistics can be improved.

As described above, according to the present embodiment,
Since the on-site work can be reduced, the construction period can be shortened. Further, since floor panels, ceiling panels, box members and the like can be factory-fitted, unit quality can be made uniform.

Further, in this embodiment, since the connecting bolt 78 which is a special bolt with both screws is used, the connecting bolt 78 can be inserted from above the lower base plate 56. For this reason, the offset amount H from the upper edge of the lower-floor outer wall material 24 fixed to the upper edge side of the back surface of the lower-floor outer wall material 24 (see FIG. 2)
Does not need to be set particularly large, and the offset amount can be set as usual. This point can be similarly applied to the upper floor side outer wall frame 46 of the upper floor side outer wall panel 36.

That is, for example, in a case where a normal bolt is used as a connecting bolt, and this bolt is inserted from below the lower floor base plate 56 and a nut is tightened from above the upper floor base plate 72, The offset amount H from the upper edge of the lower floor side outer wall material 24 of the side outer wall frame 26 needs to be at least about "the shaft length of the connection bolt + α (margin)". However, according to the present embodiment, since the connecting bolt 78 can be inserted from above the lower base plate 56, there is no need to change the offset amount H.
For this reason, it is not necessary to change the design of the lower-floor-side outer wall frame 26 and the upper-floor-side outer wall frame 46, and it is possible to share components and contribute to cost reduction.

Further, according to the present embodiment, as described above, since the connecting bolt 78 can be inserted from above the lower base plate 56, the connecting bolt is inserted from below the lower base plate 56. Compared to the case,
Workability can be improved. In addition, the holding portion 7 knurled to the connection bolt 78 of the present embodiment so that the lower floor connection nut 82 can be easily tightened.
Since 8B is formed, workability can be improved in this respect as well, and shortage of tightening torque can be prevented.

In this embodiment, a connecting bolt 78 which is a special bolt and a fastener comprising the lower floor connecting nut 82 and the upper floor connecting nut 86 are used.
However, the present invention is not limited thereto, and various fasteners can be used. For example, a normal bolt is inserted from below the overhang portion 56A of the lower floor base plate 56 and the overhang portion 7 of the upper floor base plate 72 is inserted.
A configuration in which a nut is tightened from above 2A or vice versa, or a configuration in which the former two are combined and fastened at two adjacent points so that the insertion directions are alternated, and furthermore, the extension of the lower base plate 56 A weld nut is welded in advance around the bolt insertion hole 64 of the portion 56A, and a normal bolt is screwed in from above the overhang portion 72A of the upper floor base plate 72, or conversely, the tension of the lower floor base plate 56 is stretched. A configuration in which a weld bolt is welded in advance into the bolt insertion hole 64 of the extension 56A and a normal nut is screwed into the upper base plate 72 from above the extension 72A of the upper floor side base plate 72 is applicable.

According to the third aspect of the present invention, the independent lower floor connecting nut 82 is connected to the connecting bolt 7.
8 is welded in advance around the bolt insertion hole 64 of the overhang portion 56A of the lower base plate 56, and the connection bolt 78
A configuration may be employed in which the lower end portion is screwed to the weld nut.

The lower connecting nut 82 and the washer 80 and the upper connecting nut 86 and the washer 84 may be integrated.

In the present embodiment, the present invention is applied to the connection of the outer periphery of a unit house. However, the present invention is not limited to this, and the present invention can be applied to any connection of the outer periphery of a unit building. is there.

[0063]

As described above, according to the first aspect of the present invention, the outer peripheral portion connecting structure of the unit building according to the present invention comprises a lower floor ceiling girder and a lower floor at the upper end of the lower floor column of the lower floor unit. The lower floor base member provided with the overhang portion is fixed to the gap between the side outer wall material and the lower end of the upper floor column of the upper floor unit, the upper floor floor beam and the upper floor outer wall material are fixed. The upper floor side base member provided with an overhang portion is fixed in the gap between the overhang portion, and the overhang portion of the lower floor side base member and the overhang portion of the upper floor side base member are fastened with a fastener from outside the unit. Since the outer peripheral portion of the lower floor unit and the outer peripheral portion of the upper floor unit are connected to each other, there is an excellent effect that on-site work can be reduced and productivity and logistics can be improved.

According to a second aspect of the present invention, there is provided an outer peripheral portion connecting structure for a unit-type building according to the first aspect of the present invention, wherein the above-mentioned fastener has external threads formed on the outer peripheral surfaces at both ends in the axial direction. And a pair of connection nuts screwed to each end of the connection bolt in the axial direction, so that the connection bolt is inserted from above the lower floor base member. As a result, there is an excellent effect that it is not necessary to change the design of the outer wall frame, which can contribute to cost reduction.

According to a third aspect of the present invention, there is provided a method for connecting an outer peripheral portion of a unit building according to the present invention, comprising the steps of:
In the lower base member fixed to the upper end of the lower floor column, the outer periphery of both ends in the axial direction is formed on the overhanging portion that protrudes into the gap between the lower floor ceiling beam and the lower floor outer wall material. A first step of inserting a lower end of a connection bolt having a male thread formed on a surface thereof and screwing a lower connection nut to the lower end; and an upper floor base fixed to a lower end of the upper floor pillar. The upper-floor unit is installed on the lower-floor unit so that the upper end of the connection bolt is inserted into a protruding portion of the member that protrudes into a gap between the upper-floor floor girder and the upper-floor outer wall material. A third step of screwing the upper floor connection nut to the upper end of the connection bolt from the gap between the upper edge of the lower floor outer wall material and the lower edge of the upper floor outer wall material;
, So that on-site work can be reduced and productivity and logistics can be improved.
Further, it has an excellent effect that workability can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining an outer peripheral portion connection structure and a connection method of a unit building according to the present embodiment, and is a perspective view showing a state immediately before an upper floor unit is installed on a lower floor unit.

FIG. 2 is a longitudinal sectional view showing a state in which an outer peripheral portion of a lower floor unit is connected to an outer peripheral portion of an upper floor unit.

FIG. 3 is an enlarged plan view of a protruding corner of a lower floor unit.

FIG. 4 is a front view showing a fastener for connecting the outer peripheral portion of the lower floor unit and the outer peripheral portion of the upper floor unit.

FIG. 5 is a schematic plan view of a second floor portion of a unit house according to a conventional example.

FIG. 6 is an enlarged plan view of a protruding corner (a section taken along line 6) of the unit house shown in FIG.

FIG. 7 is a vertical cross-sectional view of a protruding corner shown in FIG.
FIG. 7 is a sectional view taken along line 7).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Lower floor unit 12 Upper floor unit 18 Lower floor side pillar 20 Lower floor side ceiling girder 24 Lower floor side outer wall material 32 Gap 38 Upper floor side pillar 40 Upper floor side floor girder 44 Upper floor side outer wall material 52 Gap 54 Gap 56 Lower Floor base plate (lower floor base member) 56A Projection 72 Upper floor base plate (upper floor base member) 72A Projection 76 Fastener 78 Connection bolt 82 Lower floor connection nut 86 Upper floor connection nut

Claims (3)

[Claims] 1. A lower floor pillar disposed at a predetermined position on an outer peripheral portion, a lower floor ceiling girder fixed to a side surface of an upper end of the pillar, and a predetermined gap opened from the ceiling girder. A lower floor unit comprising: a lower floor side outer wall material arranged in parallel; an upper floor side pillar arranged at a predetermined position on an outer peripheral portion; and an upper part fixed to a side surface of a lower end part of the pillar. Floor-side floor girder, upper floor-side outer wall material that is arranged in parallel with a predetermined gap to the floor girder and the outer wall lower edge is offset by a predetermined distance above the lower end surface of the column, An upper-floor unit configured to include, and an outer-peripheral-portion connection structure of a unit-type building for connecting the upper and lower units at the outer peripheries of the two units; Affixing the lower floor base member with the overhang to the gap between the ceiling girder and the lower floor outer wall material, At the lower end of the upper floor column of the floor unit, an upper floor base member provided with an overhang portion in the gap between the upper floor floor girder and the upper floor outer wall material is fixed, and the lower floor base member A unit type, wherein the outer periphery of the lower floor unit and the outer periphery of the upper floor unit are connected by fastening the overhang and the overhang of the upper base member with a fastener from outside the unit. Peripheral connection structure of the building. 2. The fastening tool according to claim 1, further comprising: a connecting bolt having external threads formed on outer peripheral surfaces of both ends in the axial direction; and a pair of connecting nuts screwed to each axial end of the connecting bolt. The outer peripheral portion connecting structure of the unit-type building according to claim 1, comprising: 3. A lower-floor pillar disposed at a predetermined position on an outer peripheral portion, a lower-floor ceiling girder fixed to a side surface of an upper end of the pillar, and a predetermined gap formed with respect to the ceiling girder. A lower floor unit comprising: a lower floor side outer wall material arranged in parallel; an upper floor side pillar arranged at a predetermined position on an outer peripheral portion; and an upper part fixed to a side surface of a lower end part of the pillar. Floor-side floor girder, upper floor-side outer wall material that is arranged in parallel with a predetermined gap to the floor girder and the outer wall lower edge is offset by a predetermined distance above the lower end surface of the column, And an upper floor unit configured to include: a method of connecting an outer peripheral portion of a unit type building for connecting the outer peripheral portions of the two units at an outer peripheral portion thereof. In the fixed lower floor base member, the space between the lower floor ceiling girder and the lower floor outer wall material is stretched. A first step of inserting a lower end of a connection bolt having a male screw formed on an outer peripheral surface of both ends in the axial direction into the extended portion, and screwing a lower-layer connection nut to the lower end. The upper end of the connection bolt is formed on an overhanging portion of the upper floor base member fixed to the lower end of the upper floor side pillar, the protrusion protruding into the gap between the upper floor floor girder and the upper floor outer wall material. A second step of mounting the upper floor unit on the lower floor unit such that the connection bolt is inserted through a gap between an upper edge of the lower floor outer wall material and a lower edge of the upper floor outer wall material. And a third step of screwing an upper floor side connection nut to an upper end of the unit building.