JP2000240160A - Unit building structure having underground part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily form an underground space by effectively utilizing an inclined land. SOLUTION: In the case where a unit building 1 having an underground part 13 is constructed on the upper part 4 of an inclined land 3, a box-shaped steel underground unit 12 formed in a mudular dimension the same as that of a box-shaped building unit 10 of the unit building 1 is buried in the upside of the inclined land 3. Then, the box-shaped building units 10 are arranged, being connected horizontally with the box-shaped steel underground unit 12, on the downside facing a front road 2 of the inclined land 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit building structure having an underground part.

[0002]

2. Description of the Related Art In recent years, the number of cases of building houses with basements has been increasing due to relaxation of floor area ratio standards and the like. Conventionally,
Most of the basement of the house is a concrete basement constructed on site.

[0003]

For example, when a basement is made on a slope by using a slope, the basement can be made relatively easily as compared with a case where the basement is made on a flat ground. In the case of a basement, there is a problem that it takes a long time to construct, and the cost is high because the individual design is tailored to the building.

It is an object of the present invention to solve the above-mentioned problems and to provide a unit building structure having an underground portion capable of easily creating an underground space by effectively utilizing a slope.

[0005]

In order to solve the above problems, according to the first aspect of the present invention, when constructing a unit building having an underground portion on an upper surface land portion of a sloped land, a mountain side portion of the sloped land is constructed. A steel box-type underground unit with the same module dimensions as the box-type building unit of the unit building is buried, and the box-type building unit is connected horizontally to the steel box-type underground unit on the valley side of the slope. It is characterized by being installed.

According to the first aspect of the present invention, an underground portion can be easily and inexpensively manufactured by using the steel box-type underground unit. By connecting the box-shaped building unit horizontally to the steel box-shaped underground unit, the manufacturing cost of the underground portion can be further reduced as compared with the case where the box-shaped building unit is constituted only by the steel box-shaped underground unit. In addition, by mounting the box-shaped building unit on the ground portion on the box-shaped building unit on the underground portion, the amount of overhang to the valley side of the first floor portion or more can be increased. Furthermore, by embedding the steel box-type underground unit on the mountain side of the slope, the steel box-type underground unit can bear the earth pressure acting on the mountain-side surface of the box-type building unit in the underground portion.

In the invention described in claim 2, the box-shaped building unit in the underground portion is a garage unit for the first floor.

According to the second aspect of the present invention, the box-type building unit provided in the basement in place of the steel box-type basement unit is an existing first floor garage unit. Since the garage is provided in the underground part, a reduction in the volume of the unit building can be suppressed.

[0009] The invention according to claim 3 is characterized in that the box-shaped building unit in the basement is a living room unit for the first floor.

According to the third aspect of the present invention, the box-type building unit provided in the basement in place of the steel box-type basement unit is an existing first floor living room unit. Since the room is a basement, the volume of the unit building can be increased, and the room can be formed in the basement at low cost.

[0011]

First Embodiment A first embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show a first embodiment of the present invention.

In the first embodiment, the front road 2 is
When the unit building 1 with the underground portion 13 is constructed on the upper surface land portion 4 of the sloped land 3 having the above, the steel module formed to have the same module size as the box-shaped building unit 10 of the unit building 1 on the mountain side portion of the sloped land 3 The box-type underground unit 12 is buried, and the box-type building unit 10 is installed horizontally in the valley-side portion of the sloped land 3 facing the front road 2 with the steel box-type underground unit 12. In this case, the garage unit 5 for the first floor is particularly connected as the box-shaped building unit 10.

The unit building 1 is mainly constituted by a plurality of box-shaped building units 10. These box-shaped building units 10 are manufactured in a factory as standardized to a predetermined module size, and are transported to a building site and fastened with combination bolts to form a unit building 1. Upper structure 11
(Shed) can be built in a short period of time.

As shown in FIG. 1, the building unit 10 has a substantially rectangular ceiling frame 10 composed of a pair of metal ceiling beams 10a, 10a and a pair of end beams 10b, 10b.
c and a pair of substantially rectangular floor frames 10f formed by a pair of metal floor beams 10d, 10d and a pair of end beams 10e, 10e.
And the inner and outer wall members 10i around a substantially box-shaped ramen structure joined to the upper and lower ends of four hollow column members 10h through joint pieces 10g, respectively.
Is affixed.

As described above, a box-shaped steel basement unit having substantially the same module dimensions as the box-shaped building unit 10 constituting the upper structure 11 is provided below the upper structure 11 (shed). The box-shaped steel basement unit 12 for the end of the above and the box-shaped building unit 10 (the first-floor garage unit 5) are buried in a horizontally connected state, and an underground structure (underground portion) 13 is formed. ing.

The box-shaped steel underground unit 12 for the end portion
As shown in FIG. 2, the upper surface portion 12b and the bottom surface portion 12f
And a pair of opposing wife side surfaces 12c, one girder side surface 12d, and an opening 12a for inter-unit connection facing the girder side surface 12d. It is horizontally connected to the box-shaped building unit 10 (the first-floor garage unit 5) in a state of being in contact with the (first-floor garage unit 5). Top part 12b, bottom part 1
2f, the side wall 12c, the side wall 12d, and other wall surfaces are formed of a steel plate outer plate member 14 and an inner wall member 15 disposed in parallel with the steel plate outer plate member 14 with a predetermined gap.
And a plurality of H-shaped steel members 16 interposed in the space between the steel plate outer plate member 14 and the inner wall member 15 and a C channel type steel member provided on the periphery of the opening 12a for inter-unit connection. 17 and the sound insulating material 18 filled in the space
And so on.

Among them, the upper surface portion 12b (ceiling), the bottom surface portion 12f (floor), the wife side surface 12c (both side walls), and the girder side surface 1
The steel plate outer plate member 14 constituting 2d is formed into a watertight box by welding the contact sides, so that a sufficient water stopping performance can be obtained. The outer surface of the outer plate member 14 made of a steel plate is subjected to a surface treatment such as a super-thick film type semi-permanent rust prevention and corrosion prevention system coating.

H-shaped steel 16 and C-channel steel 1
7 are a top part 12b (ceiling) and a bottom part 12f, respectively.
(Floor) and the wife side surface 12c (both side walls) are arranged in a circular shape and connected by welding or the like so as to exhibit a square shape in side view, thereby forming a square steel frame. The space between the square steel frame and the steel plate member 14 is fixed by welding or the like.

At the four corners of the upper surface 12b of the box-shaped steel basement unit 12 for the end, four fixing bolts 19 connecting the box-shaped building units are erected by welding or the like. Have been.

On the end side surface 12c near the corner of the box-shaped steel underground unit 12 for the end, auxiliary column members 20, 20 to be welded to the steel plate member 14 are provided. The auxiliary column member 20 has an elongated shape having a height substantially equal to the height of the box-shaped steel underground unit 12 for the end portion, and has a lower end formed on the base 25a of the underground structure 13.
And a fixing bolt 20b erected on the upper end 20a can be connected to the lower edge of the box-shaped building unit 10.

Further, an auxiliary column member which is detachable from the steel plate outer plate member 14 with a bolt member and a nut member is provided on a girder side surface 12d near the corner portion of the box-shaped steel base unit 12 for the end portion. 21 and 21 are provided. The auxiliary column member 21 has an elongated shape having a height substantially equal to the height of the box-shaped steel underground unit 12 for the end portion, and has a lower end fixed to the foundation 25 a of the underground structure 13. And the fixing bolt 21 erected on the upper end 21a.
b can be connected to the lower edge of the box-type building unit 10.

A box-shaped steel underground unit 12 for the end portion
Is located at a predetermined position on the upper surface portion 12b.
Are formed.

In the figure, reference numeral 25 denotes a bottom surface of a digging hole, 25a
A foundation formed on the bottom surface 25; 26, anchor fixing bolts protruding from the foundation 25a; 31, a retaining wall formed on the side of the box-shaped building unit 10 (the first-floor garage unit 5); Is earth pressure.

Next, the operation of the first embodiment will be described.

As shown in FIG. 2, at the construction site,
After the ground survey and leveling are performed, earth retaining, root cutting, and mountain retaining are performed. The excavation width is 400 mm from the end face of the girder and 200 mm from the end face of the girder.

Crushed stones are spread on the bottom surface 25 of the excavated hole, sufficiently compacted, and discarded concrete is struck. Discarded concrete is 50mm thick
The Fc is set to 135 kg / cm 2 or more.

On this, reinforcement and anchor setting are performed, and the projecting positions of the fixing bolts 26 are determined. And thickness 300-500mm, Fc180kg / square c
m, and then the ready-mixed mortar is laid down while adjusting the level at a thickness of 25 mm to form a foundation 25a.

Next, the box-shaped steel basement unit 12 and the box-shaped building unit 10 for the end portion (the first-floor garage unit 5)
Are placed within the projected area of the box-shaped building units 10 of the upper structure 11 in a top view.

That is, in addition to the auxiliary pillar members 20 and 20 previously fixed to the end side surface 12c of the box-shaped steel underground unit 12 by welding in the factory, in addition to the girder side of the box-shaped steel underground unit 12 The auxiliary pillar members 21 and
1 is fixed with a plurality of bolt members and nut members. Then, fixing bolts 26 erected from the base 25a of the bottom portion 25 are inserted into bolt insertion holes provided in the lower surface portion of the box-shaped steel underground unit 12 and bolt insertion holes of the auxiliary column member 21. It is inserted and fixed by a nut member. The fixing bolts 26 are inserted through bolt insertion holes provided on the lower surface of the box-type building unit 10 (the first-floor garage unit 5), and are fixed by nut members. At this time, the box-shaped steel basement unit 12 and the upper part of the box-shaped building unit 10 (the first-floor garage unit 5) are made to protrude from the ground by the same height as the foundations 36 and 37 of the upper surface land portion 4. By doing so, the upper part of the box-shaped steel underground unit 12 can be used as the foundations 36 and 37.

Further, the opening 12a of the box-shaped steel underground unit 12 and the box-shaped building unit 10 (the first-floor garage unit 5) are fixed with a plurality of bolt members and nut members. Then, the surroundings of the box-shaped steel underground unit 12 in the excavation hole are backfilled with lap concrete, and retaining walls 31 are formed on both side surfaces of the box-shaped building unit 10 (the first-floor garage unit 5). Next, as shown in FIG. 1, the box-shaped building units 10 on the first floor of the upper structure 11 are disposed on the upper surface of the box-shaped steel underground unit 12 for the end constituting the underground portion 13. The box-shaped building unit 10 (the first-floor garage unit 5) is placed around the portion 12b and around the upper surface of the box-shaped building unit 10 (garage unit 5 for the first floor). At this time, the floor beams 10d and the girder beams 10e that constitute the periphery of the floor frame 10f of the box-shaped building unit 10 on the first floor coincide with the peripheral portion of the upper surface portion 12b of the box-shaped steel underground unit 12 in a top view. It is placed as follows.

Then, the bolt insertion holes of the beam 10e are inserted through fixing bolts 19 erected from the corners of the upper surface portion 12b of the box-shaped steel underground unit 12, and if necessary, zinc plating for level adjustment is performed. It is fastened by a nut member with a spacer such as a steel plate interposed.

As described above, the box-shaped steel basement unit 12 for the end having substantially the same module size as the box-shaped building unit 10 constituting the upper structure 11 is buried under the upper structure 11. Thereby, the underground portion 13 is formed.

The earth pressure 32 acting around the box-shaped steel underground unit 12 is received by the steel plate outer plate member 14 of the box-shaped steel underground unit 12 and the wrapped concrete. The earth pressure 32 acting on both side surfaces of the box-shaped building unit 10 (the first-floor garage unit 5) is received by the retaining wall 31. Further, the earth pressure 32 acting on the mountain side surface of the box-type building unit 10 (the first-floor garage unit 5)
The steel box type underground unit 12 will receive it. This makes it possible to use the box-shaped building unit 10 which is less expensive than the box-shaped steel basement unit 12. As described above, according to the first embodiment, by using the steel box-type underground unit 12, the underground portion 13 can be easily and inexpensively manufactured.
Can be made. By connecting the box-type building unit 10 to the steel box-type underground unit 12 horizontally, the manufacturing cost of the underground portion 13 can be further reduced as compared with the case where the box-type building unit 10 is constituted only by the steel box-type underground unit 12. In addition, by mounting the box-shaped building unit 10 in the ground portion on the box-shaped building unit 10 in the underground portion 13, it is possible to increase the amount of overhang to the valley side of the first floor portion or more. Further, a steel box-type underground unit 1 is provided on the mountain side of the slope 3.
By embedding 2, the steel box-type underground unit 12 can bear the earth pressure 32 acting on the mountain-side surface of the box-type building unit 10 in the underground portion 13.

A steel box type underground unit 12
The garage is provided in the underground portion 13 by using the box-type building unit 10 provided in place of the above as the existing first-floor garage unit, so that a reduction in the volume of the unit building 1 can be suppressed.

[0036]

Second Embodiment FIG. 4 shows a second embodiment of the present invention. Note that the same or equivalent parts as those in the first embodiment are described with the same reference numerals.

In the second embodiment, the existing first floor living room unit 9 is used as the box-shaped building unit 10 horizontally connected to the steel box-shaped underground unit 12.

As described above, the box-type building unit 1 provided in the underground part 13 in place of the steel box-type underground unit 12
By using the existing first-floor living room unit 9 as 0, the living room becomes the underground portion 13, so that the volume of the unit building 1 can be increased and the underground portion 1 is inexpensive.
3 has the same configuration as that of the first embodiment except that the living room can be made in the third embodiment.
The effect can be obtained.

[0039]

As described above, according to the first aspect of the present invention, the underground portion can be easily and inexpensively manufactured by using the steel box-type underground unit. By connecting the box-shaped building unit horizontally to the steel box-shaped underground unit, the manufacturing cost of the underground portion can be further reduced as compared with the case where the box-shaped building unit is constituted only by the steel box-shaped underground unit. In addition, by mounting the box-shaped building unit on the ground portion on the box-shaped building unit on the underground portion, the amount of overhang to the valley side of the first floor portion or more can be increased.
Furthermore, by embedding the steel box-type underground unit on the mountain side of the slope, the steel box-type underground unit can bear the earth pressure acting on the mountain-side surface of the box-type building unit in the underground portion.

According to the second aspect of the present invention, a garage is provided in the underground portion by using a box-type building unit provided in place of the steel box-shaped underground unit in the underground portion as an existing first floor garage unit. Therefore, a decrease in the volume of the unit building can be suppressed.

According to the third aspect of the present invention, the box-type building unit provided in place of the steel box-type basement unit in the basement portion is an existing first floor living room unit,
Since the living room is an underground part, the practically advantageous effect that the volume of the unit building can be increased and a living room can be formed in the underground part at low cost can be exerted.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a building according to Embodiment 1 of the present invention.

FIG. 2 is an exploded perspective view of the underground portion of FIG.

FIG. 3 is a plan view of an underground part of FIG. 2;

FIG. 4 is an exploded perspective view of a building according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Unit building 3 Sloped land 4 Upper surface land part 5 First floor garage unit 9 First floor living room unit 10 Box type building unit 12 Steel box type basement unit 13 Basement part

Claims (3)

[Claims] When building a unit building with an underground part on the top land part of the slope, a steel box type underground unit formed on the mountain side of the slope with the same module size as the box building unit of the unit building. And a box-type building unit installed horizontally in a valley-side portion of the sloped land and connected to a steel box-type underground unit. 2. The unit building structure provided with an underground part according to claim 1, wherein the box-type building unit in the underground part is a garage unit for the first floor. 3. The unit building structure having an underground part according to claim 1, wherein the box-shaped building unit in the underground part is a living room unit for the first floor.