JP2003119889A - Steel-made unit type housing building having a plurality of stories - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten construction term, reduce construction cost, provide excellent resistance against earthquake and excellent thermal insulation property and soundproofing property, improve the safety in lifting work, reduce transportation cost, and ensure sufficient strength while simplifying a structure of a joining part and reducing its weight. SOLUTION: A plurality of units 1U having a substantially H-shaped vertical cross section and constituted so as to have the same specifications and the same structure by factory production and one unit 2U having a substantially U-shaped vertical cross section are transported to construction site. The substantially U-shaped unit 2U is installed and constructed at a lowermost position while it faces upward and is opened, a plurality of remaining substantially H-shaped units 1U are sequentially piled up on the substantially U-shaped unit 2U, and the units adjacent vertically are mutually fixed and joined while end parts of wall structural bodies 4A in each unit are abutted on each other to construct a housing building having a plurality of stories.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel frame unit type multi-storey residential building. For details, load a plurality of steel-framed units prefabricated in the factory to a construction site with a large truck, etc., and stack the loaded units sequentially in the vertical (vertical) direction, and then vertically adjacent units. The present invention relates to a steel frame unit type multi-storey residential building constructed by fixing and joining each other by bolting or welding.

[0002]

2. Description of the Related Art As a steel frame unit type multi-storey residential building of this type, the inventor of the present invention, as schematically shown in FIG. A wooden base for interior finishing is fixed inside,
A wall structure W in which a heat insulating layer is formed at least in a space between the outer plate and an interior plate fixed to a wooden base and surrounding the core steel frame and a part in contact with the outer plate, and a large number of core steel frames At the factory, a ceiling structure C and a floor structure F to which at least a wooden base for finishing the interior material is fixed are assembled in a factory, and a box type unit having a □ type ramen structure in the short side direction and an earthquake resistant wall structure in the long side direction. U has the same specifications,
Bring in a plurality of box-type units U of the same structure (three shown as an example, but two or more are acceptable) to the construction site, and install one of the units U underground or on the ground surface. While constructing the floor B or the ground floor F1, the remaining units U are sequentially stacked on the unit U on the basement floor B or the ground floor F1.
Fixing and joining vertically adjacent units U, U to each other by bolting with the upper and lower ends of the core steel frame of each unit U butted against each other and in-situ welding of the core steel frame and the metal outer plate. Therefore, it is possible to construct a multi-storey residential building including the basement floor or without the basement floor, such as constructing an upper building on the first floor F1 to the second floor F2 or the second floor F2 to the third floor F3. Have already suggested things.

[0003]

The steel frame unit type multi-storey residential building (hereinafter referred to as the “proposed technology”) already proposed by the present inventor having the above-mentioned structure is a conventional multi-story building made of steel frame. A built residential building, that is, a foundation work is performed at a construction site, and a steel column with a height up to the top end of the building is built on the foundation, and a steel frame is hung on the steel column to form a frame structure. Compared to conventional steel-framed multi-storey residential buildings constructed by full-scale on-site construction, such as constructing and then sequentially attaching the walls, floors, ceilings, roofs, etc. of each floor to the frame structure. The construction work is extremely small, the construction period can be greatly shortened and the construction cost can be reduced, and it is also excellent in earthquake resistance, heat insulation, and soundproofing. Build a house building you own It has the advantage that it is Rukoto.

On the other hand, in the technique proposed by the present inventor, when each unit U sets the unit floor height to 2700 mm in consideration of the floor height unit of each floor, for example, the limit height of transportation,
Since the ceiling structure C and the floor structure F are assembled at the factory to the wall structure W having a size (vertical size) that matches the set unit floor height of 2700 mm, and the box structure is used, When the die unit U is loaded on a transportation truck by a lifting machine such as a crane, unloaded from the truck at a construction site, or stacked on top of another, the hanging unit is hooked on the tip of the boom of the lifting machine. It is necessary to attach a suspending piece for hooking the lower end of the rope to the ceiling structure C at the highest position in each unit U. Therefore, in order to hoist the unit U to a loading platform level or a stacking level where it can be loaded or unloaded on a truck or the like via a hoisting rope, the boom of the hoisting machine or the like must be raised above ground level. It is necessary to extend it for a long time, and since the position of the center of gravity of suspension of each unit is high and it is easy to shake due to the influence of wind, etc., it is preferable from the viewpoint of safety of a series of work from loading to unloading and stacking construction. Absent.

Further, in the case of a box type unit, when loading on a loading platform such as a truck, it is impossible to stack and load two units in view of the limit height of transportation (generally 2900 mm). Therefore, it is necessary to arrange the unit units in a plane and load the units, and it is easy to increase the transportation cost in terms of the space required for transportation. In addition, in the case of the already proposed technology, as shown by the phantom line in FIG. 7, each floor unit U is in an independent stress state, and the stress location having the largest value is not only the joint between upper and lower adjacent units, but also , Since the joints overlap the joints of the wall structure of each unit, the ceiling structure and the floor structure, the units of each floor are structurally mechanically integrated so that the yield strength of the entire building can be sufficiently secured. In order to achieve this, it is necessary to increase the joint strength of the joint, and therefore, the structure for joining the joints between the vertically adjacent units is very complicated and easy to increase in size, which contributes to the cost increase. Challenges remain.

The present invention has been made in view of the above-mentioned circumstances, and can shorten the construction period and greatly reduce the construction cost, and is also excellent in earthquake resistance, heat insulation and soundproofing, and is sufficient even in a narrow area. In addition to having the original advantage of a unit type that can secure a large living space, it is possible to improve work safety and reduce transportation costs, and also simplify the joint structure between vertically adjacent units, small and lightweight While aiming for
The purpose of the present invention is to provide a steel-framed unit type multi-storey residential building that can sufficiently secure the bearing capacity of the entire building.

[0007]

In order to achieve the above object, in a steel frame unit type multi-storey residential building according to the present invention, a metal outer plate is fixed to the outside of a large number of core steel frames.
A wooden base for interior finishing is fixed on the inside, and a heat insulating layer is formed at least in the space between the outer plate and the interior plate fixed to the wooden base, at a place surrounding the core steel frame and at a place in contact with the outer plate. And a wall structure in which openings are formed in the wall surface, and a ceiling structure and a floor structure or a combined ceiling / floor structure in which at least a wooden base for finishing interior materials is fixed to a number of core steel frames The body and the body are assembled at the factory to form a rigid frame structure in the short side direction and a seismic wall structure in the long side direction to form a unit with a substantially H-shaped unit and a unit with a substantially U-shaped vertical cross section. The H-shaped unit and one U-shaped unit are brought into the construction site, and one U-shaped unit is installed at the lowest position with the upward open state, and remains on this U-shaped unit. Multiple H-shaped units Next stacked, and is characterized in that it is constructed of multiple storey residential building by fixedly joined to each other at the ends abutting state of the wall structure of each unit of the units that are adjacent vertically.

According to the present invention having the above-mentioned structure, the advantage as described above, that is, the construction period, is obtained, as compared with the conventional general steel-framed multi-storey residential building in which the construction means is entirely constructed on site. It has a number of original advantages of unit type, such as a significant reduction in construction cost and a great reduction in construction cost, excellent earthquake resistance, durability, soundproofing, and securing a sufficiently large living space even in a small area. There is. Moreover, in the present invention, each floor unit is not a box type, but is a unit having a vertical cross-sectional shape of a substantially H shape and a substantially U shape, and each has an opening portion at the upper side. It is possible to install the piece at a low position such as the ceiling structure and floor structure of each unit or the structure for both ceiling and floor, which makes it possible to suppress the extension amount of the boom of the lifting machine and the like. By setting the position of the center of gravity of suspension of each unit to a low position where it is not easily affected by wind and the like, it is possible to improve the safety of a series of work from loading to unloading of the unit and stacking.

Further, when loading the units on a loading platform such as a truck, it is possible to stack the two units within the range of the limit height of transportation by turning the two units upside down. As compared with the case of the already proposed technology, the required space for loading during transportation can be reduced to almost half and the transportation cost can be significantly reduced. Further, as is apparent from the phantom line in FIG. 1, the fixed joint between the upper and lower adjacent units is a portion having a small stress value such as the inflection point x of the stress state of the unit type building or its vicinity, so that the fixing Not only it is possible to simplify the structure of the joint part, but also
The joint between the wall structure and ceiling structure and floor structure or ceiling / floor combined structure of each unit will be separated from the fixed joint between vertically adjacent units, and the joint structure will also be greatly simplified. Therefore, it is possible to reduce the total cost and sufficiently secure the proof stress of the entire building.

In the steel-framed unit-type multi-storey residential building according to the present invention, one substantially U-shaped unit may be used as the upper building on the first floor above the ground. By being used as the basement of a building on the ground floor, which is buried underground as a basement floor, it is possible to construct a residential building with a sufficiently large living space even in a small area, and by simplifying and rationalizing the foundation work. The construction period can be further shortened and the construction cost can be further reduced.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external front view of a steel-framed unit type three-story residential building with a basement according to the present invention, FIG.
Is a schematic vertical front view of this steel-framed unit-type three-story residential building with basement, the dimensions and shape of which are standardized to the same specifications at the factory, and the vertical cross-sectional shape produced in the same structure is approximately H-shaped. Three units 1U ... and one unit 2U having a substantially U-shaped vertical cross section are carried into a house construction site via a large truck or the like, and among them, the unit 2U having a substantially U-shaped vertical cross section is used. The basement floor B is constructed by being buried underground with its opening opening upward, and the remaining three units 1U whose vertical cross-sectional shape is substantially H-shaped
Are sequentially stacked on top of the underground burial unit 2U as a base, and fixedly joined to the ground floor F
It was constructed by constructing an upper building on the first to third floors F3. A roof unit 3U manufactured in advance in a factory is stacked and fixedly joined to the upper portion of the unit 1U on the third floor F3.
The shape of U is arbitrary and may be constructed at a construction site. The floor height of each unit 1U ... And 2U is set to 2700 mm in consideration of the limit height of transportation.

A unit 1U having a substantially H-shaped vertical cross section
Is constructed by integrally assembling four wall structures 4A and one ceiling / floor structure 4B in a factory, and the unit 2U having a substantially U-shaped vertical cross section has four units similar to those described above. The wall structure 4A and one floor structure 4C are integrally assembled in a factory. By assembling the structures 4A, 4B and 4A, 4C, each unit 1U ...
U has a composite structure of a rigid frame structure in the short side direction and a seismic wall structure in the long side direction.

Of the structures 4A, 4B and 4C constituting these units 1U ... and 2U, the wall structure 4A is made of H-shaped steel, channel steel or the like and arranged at an appropriate pitch, as shown in FIG. Outer flange portion 5a of core material steel frame 5 ...
A metal outer plate 6 such as a steel plate is fixed to the inner surface of the core steel frame 5, and a wooden inner plate 8 is fixed to the inner flange portion 5b of the steel core frame 5 by nailing or bonding. Are adhered and fixed, and they are not exposed in the space between the wooden interior plate 8 and the metal outer plate 6 surrounding the core steel frames 5 ... A heat insulating layer 21 is formed by spraying urethane foam, which is an example of a foaming heat insulating material, on the spot, and an outer plate 6 serving as an outer wall surface of these wall structures 4A is used as a ceiling / floor structure 4B. As shown in FIG. 1, an opening 10 such as a window is formed in the outer plate portion on the upper side.

Further, the unit 1U having a substantially H-shaped vertical cross section ...
As shown in FIG. 4, the combined ceiling / floor structure 4B in FIG. 4 is made of H-shaped steel, channel steel, or the like having a larger size than that of the wall structure 4A.
The interior finishing wooden bases 14, 1 on which wooden interior boards 12, 12 such as floor materials and ceiling materials can be fixed and fixed to the upper and lower flange portions 11a, 11b ...
4 is adhered and fixed, and wooden interior plates 12, 1
A heat insulating and soundproof layer 22 is formed by spraying urethane foam, which is an example of a foaming heat insulating material, in situ so as not to expose the core material steel frames 11 ... In the ceiling / floor combined structure 4B having such a configuration, both longitudinal end portions of the core steel frames 11 ... Are fixedly joined to the wall structure 4A at positions closer to the lower end than the central position in the longitudinal (vertical) direction. Has been done.

Further, the unit 2 having a substantially U-shaped vertical cross section.
As shown in FIG. 5, the floor structure 4C in U has a ceiling
Core material steel frame 1 using H-shaped steel, channel steel, etc. of a smaller size than that of the structure 4B for combined use of floors and arranged at an appropriate pitch
A metal outer plate 6 such as a steel plate on the lower end flange portion 15b of 5 ...
Is fixed to the upper end flange portion 15a of the core material steel frame 15 and a wooden base plate 17 for interior finishing, which can be fixed and fixed by nailing or an adhesive agent, is fixed to the wooden interior plate 16 such as a floor material. In addition, in the space between the wooden interior plate 16 and the metal outer plate 6, a foam heat insulating material is provided so as not to expose the core steel frames 15 ... The thermal insulation layer 23 is formed by in-situ spraying urethane foam, which is an example of the above, and both longitudinal ends of the core material steel frame 15 in the floor structure 4C having such a configuration are cores in the wall structure 4A. It is fixedly joined to the lower end of the steel frame 5 in the longitudinal direction.

As described above, one U-shaped unit 2U
In a steel-framed unit type three-story residential building with a basement constructed by stacking and three substantially H-shaped units 1U ... Unit 2U for basement B, unit 1U for ground F1 and ground F1 The unit 1U for the second floor and the unit 1U for the second floor F2 and the unit 1U for the second floor F2 and the unit 1U for the third floor F3 are the wall structures in each unit 2U, 1U, as shown in FIG. 4A ... Metal plate members 18, 18 fixed to the upper end and the lower end of the core material steel frame 5 ...
The waterproof sealing material 19 is sandwiched between 8 and 18 and tightened with bolts and nuts 20 so that they are fixedly joined to each other.

The steel-framed unit type three-story residential building with a basement constructed as described above is a three-story building having the same specifications and the same structure, which is assembled in a factory and has a substantially H-shaped longitudinal section.
Unit joining work of bringing in the units 1U ... and one unit 2U having a substantially U-shaped vertical cross-section to a house construction site through a large truck, etc., sequentially stacking and fixedly joining, It is a small area only by performing on-site construction with a small number of man-hours such as construction work of the heat insulating layers 21 to 23 by spraying urethane foam to the internal space of each structural body 4A, 4B, 4C in each unit 1U ..., 2U. Unit type 3 with a basement that has a sufficiently large living space
It is possible to construct a one-story residential building in a very short construction period.

Further, a box type unit 1U having a composite structure of a ramen structure and an earthquake-resistant wall structure and having excellent structural safety.
…, 2U fixedly joined and integrated, large earth pressure and water pressure applied to the unit 2U for the basement B, as well as large wind pressure applied to the unit 1U for the upper building on the first floor F1 to the third floor F3 above the ground. Has enough strength to compete with
Further, since the unit 1U for the upper building is firmly supported on the ground by using the unit 2U for the basement as a deep foundation, the unit 1U for the upper building is suppressed from shaking when an earthquake occurs. It is also possible to secure excellent earthquake resistance and durability.

In addition, since each unit 1U ... 2U is not a box type but has a vertical cross-sectional shape of a substantially H shape and a substantially U shape and has an opening portion at the upper side, for example, in FIG. As shown, the hanging piece P for hooking the lower end of the hanging rope R is used as the ceiling / floor structure 4B of the substantially H-shaped unit 1U ... and the floor structure 4C of the substantially U-shaped unit 2U.
It is possible to install it in a low position called
It is possible to keep the amount of extension of the boom, etc. of the lifting machine that suspends the hoisting machine small so that the ground height at its tip position becomes low, and the hanging center of gravity of each unit 1U, 2U is affected by wind and other factors. It is possible to improve the safety of a series of work from loading to unloading the unit by setting it in a low position where it is difficult to receive and stacking.

When the units 1U ... 2U are loaded on a bed such as a truck, the two units are stacked upside down within the range of the limit height of transportation by turning the two units upside down. It is also possible, and compared with the case of the already proposed technology, the required space for loading during transportation can be almost halved and the transportation cost can be significantly reduced. Further, the fixed joint between the vertically adjacent units 2U, 1U and 1U, 1U is, as is apparent from the phantom line in FIG. 1, the point where the stress value is the smallest, such as the inflection point of the stress state of the unit type building or its vicinity Therefore, the structure of the fixed joint is not only light and small, but also the joint between the wall structure 4A of each unit 1U and the combined ceiling / floor structure 4B is a fixed joint between vertically adjacent units. As a result, the joint structure will be greatly simplified, and it is possible to reduce the total cost and secure sufficient proof strength of the entire building.

Although the above embodiment has been described by applying to a steel framed unit type three-story residential building with a basement, the unit 2U having a substantially U-shaped vertical cross section is the upper building on the ground floor. It may be a multi-storey residential building with two or more floors without a basement.

[0022]

As described above, according to the present invention, many advantages of the technique proposed by the present inventor, that is, a plurality of stories of conventional general steel frame construction in which construction means by full-scale site construction is adopted Compared to a built-up residential building, the construction period can be significantly shortened and the construction cost can be significantly reduced, and it is also excellent in earthquake resistance, heat insulation, soundproofing, and airtightness, providing a sufficiently large living space even in narrow areas often in the city center. In addition to ensuring the advantage of being able to construct a residential building with it, it is also possible to attach a hanging piece for hanging the lower end of the hanging rope for lifting each unit to the lower position of each unit. The amount of extension of the boom of the lifting machine can be kept small, and the position of the center of gravity for suspension of each unit can be set to a low position that is not easily affected by wind, etc. Loading and unloading from the write, it is possible to improve the safety of the series of operations to stacked construction.

Moreover, by turning the two units upside down, it is possible to stack the two units within the range of the limit height of transportation and load them on a truck bed or the like.
Compared with the case of the already proposed technology, the required space for loading during transportation can be almost halved and the transportation cost can be significantly reduced. In addition, since the fixed joint between the upper and lower adjacent units is set to the point where the stress value is the smallest, such as at or near the inflection point of the stress state of the unit type building, the structure of the fixed joint is light and small. In addition to the above, the joint structure of the wall structure, ceiling structure and floor structure or ceiling / floor structure structure of each unit is separated from the fixed joint between the vertically adjacent units, and the joint structure Therefore, it is possible to greatly simplify the structure, and therefore, it is possible to reduce the total cost and to sufficiently secure the proof stress of the entire building.

In particular, as described in claim 2, the substantially U-shaped unit is buried underground as a basement floor and is used as a base of an upper building so that even a small land is sufficiently large. In addition to being able to construct a residential building with a living space, it is possible to further shorten the construction period and further reduce construction costs by simplifying and rationalizing the foundation work.

[Brief description of drawings]

1 is a steel frame unit type 3 with a basement according to the present invention
It is an appearance front view of a multi-storey residential building.

FIG. 2 is a schematic vertical sectional front view of the same residential building.

FIG. 3 is an enlarged cross-sectional view of a main part showing a configuration of a wall structure in a unit having a substantially H-shaped vertical section.

FIG. 4 is an enlarged cross-sectional view of a main part showing a configuration of a combined ceiling / floor structure in a unit having a substantially H-shaped vertical section.

FIG. 5 is an enlarged cross-sectional view of a main part showing a configuration of a floor structure in a unit having a substantially U-shaped vertical section.

FIG. 6 is an enlarged front view of a circled portion X in FIG.

FIG. 7 is a schematic external front view of a steel frame unit type multi-storey residential building according to the proposed technique.

[Explanation of symbols]

1U Unit with a vertical cross section of approximately H shape 2U Unit with a vertical U-shaped section 4A wall structure 4B Ceiling / floor structure 4C floor structure 5,11,15 Core steel frame 6 metal outer plate 8, 12, 16 Interior plate 9,14,17 Wooden base for interior finishing 10 openings 21,22,23 heat insulation layer B basement F1 to F3 Ground floor

Claims (2)

[Claims] 1. A metal outer plate is fixed to the outside of a large number of core steel frames, a wooden base for interior finishing is fixed to the inner side, and between the outer plate and the interior plate fixed to the wooden base. A wall structure in which a heat insulating layer is formed in a space at least surrounding the core steel frame and in contact with the outer plate, and an opening is formed in the wall surface, and a large number of core steel frames at least as an interior material finish A ceiling structure and a floor structure or a ceiling / floor structure that has a fixed wooden base are assembled in a factory, and the longitudinal section is approximately H-shaped with a ramen structure in the short side direction and an earthquake-resistant wall structure in the long side direction. Unit and a substantially U-shaped unit are configured, and a plurality of substantially H-shaped units having the same specifications and the same structure and one substantially U-shaped unit are brought into the construction site, and the substantially U-shaped unit faces upward. Installed and installed at the bottom in the open state A plurality of remaining substantially H-shaped units are sequentially stacked on the substantially U-shaped unit, and vertically adjacent units are fixedly joined to each other while the end portions of the wall structures in each unit are abutted against each other to form a plurality of floors. A multi-story residential building with a steel-framed unit characterized by the construction of a single-story residential building. 2. The steel-framed unit-type multi-storey residential building according to claim 1, wherein the substantially U-shaped unit is buried underground as a basement floor and doubles as a foundation of a ground floor building.