JP2006077561A - Steel-frame unit-type house with basement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve saving manufacture and material transport costs, and providing comfortable living spaces with high ceilings, while securing the advantages of unit-type housing such as short work periods, largely cut-down work costs, improved bearing strength and earthquake resistance of building, and the freedom of room planning in the absence of inside columns and beams. <P>SOLUTION: On a basement unit 1U, with a rigid frame structure across beams and an earthquake-resistant panel structure along girders, consisting of a pair of lateral two split units 1u, 1u each approximately U-shaped in cross section and constructed with a wall structure 7W, a ceiling structure 7C and a floor structure 7F assembled with core steel frames 5 of which the external surfaces are covered with metallic external boards 6, are assembled a wall structure 8W and a ceiling structure 8C with the same specifications as the basement unit 1U. Then a plurality of ground living room units 2U each consisting of a pair of two split units 2u, 2u each approximately L-shaped in cross section, with a rigid frame and earthquake-resistance panel structures, are piled up one by one and fixed and connected together in the end-to-end butting state so as to construct a plural storied house with a basement. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a steel-framed unit type residential building with a basement. Specifically, a plurality of steel frame units manufactured in advance at the factory are carried into the construction site with a large truck, etc., and one of these units is buried underground, and the remaining units are placed vertically (up and down). The present invention relates to a steel-framed unit type residential building with a basement in which a basement floor and a plurality of ground floors are constructed by sequentially stacking and joining.

  As a steel-framed multi-storey residential building with a basement, conventionally, foundation work including underground excavation is performed at the construction site, and a steel column with a height to reach the top end of the building is built on the underground foundation. , Construct a frame structure by hanging a steel beam over the steel column, and then attach the walls, floor, ceiling, roof, etc. of the basement floor and the ground floor to the frame structure in sequence. The mainstream is the construction of the entire site construction. However, such a steel-framed multi-storey residential building with a basement in the on-site construction method is very large and complicated on-site work, requiring a long construction period and a huge construction cost. In densely populated areas such as central Tokyo, the negative effects on surrounding houses such as noise and vibration associated with construction are also enormous. In addition, since the columnar shape and the beam shape are projected in the room on both the basement floor and the ground floor, the indoor space is narrowed, and there is no freedom in the floor plan.

  As an alternative to a steel-framed multi-storey residential building with a basement in such a full-site construction method, the present inventor, as schematically shown in FIG. The wall structure W, the ceiling structure C, and the floor structure F, which are fixed to each other, are assembled at the factory, and the box unit U has a ramen structure in the beam-to-beam direction and an earthquake-resistant panel structure in the cross-beam direction, and has a substantially rectangular cross section. (Factory production), carry a plurality of box units U of the same specifications and structure to the construction site, bury one box unit U in the basement and construct the basement BR, On the basement box unit U, the remaining plurality of box units U (shown as three in the drawing, but two or more) may be sequentially stacked, and the box units U adjacent to each other vertically. First floor to third floor by fixing and joining U together with bolts in the state in which the upper and lower ends of the core steel in each box unit U are in contact with each other and on-site welding between the core steel and the metal outer plate We have already proposed a building that can build a steel-framed unit type multi-storey (3 floors in the drawing) building with a basement, such as constructing the above-mentioned ground floor rooms F1 to F3.

  The above-described proposed steel-framed multi-storey residential building (hereinafter referred to as the previously proposed technology) by the present inventor as described above is compared with a conventional general steel-framed multi-storey residential building constructed by full-site construction. In addition, there is very little on-site work, and the construction period can be greatly shortened and construction costs can be reduced, and even in densely populated areas such as the city center, it can be built with almost no adverse effects on surrounding houses due to noise and vibration. is there. In addition, since all units are manufactured at the factory, the strength and quality are stable, and the pillars and beams on each floor are made of the same material with a ramen structure in the beam-to-beam direction and a seismic panel structure in the beam direction. There is no fear of shin stress concentration due to variations in member rigidity, etc., it has an enormous proof strength, and is extremely excellent in earthquake resistance. In addition, since there are no pillars or beams protruding in the room in either the basement or the above-ground room, there is no waste of room space and there is freedom in floor plan, etc., which is the most desirable comfortable residence as a residential building It has many advantages such as providing space.

  On the other hand, according to the technique proposed by the present inventor, each unit U is configured in a box shape having a substantially rectangular shape in the vertical cross section. Box unit ceiling structure, ground floor box unit floor structure, and ceiling unit and floor structure of above-ground box units adjacent above and below are wasteful in terms of material and strength. However, it became an unnecessary double structure, and the production cost of the unit, and consequently, the construction cost of the whole residential building increased.

  In the case of a box unit, it is necessary to keep the total height of the unit within the limit height of transportation (generally, 2900 mm) in consideration of loading on a loading platform such as a truck. The ceiling height is naturally limited, and it is difficult to obtain a comfortable and open living space with high ceiling height. Furthermore, in the case of a box unit set to the full height of the limit height of transportation, when loading on a truck bed, etc., it is impossible to stack two units and stack them in a unit-by-unit plane. As a result, there remains a technical problem that the necessary space for transportation increases and the transportation cost tends to increase.

  The present invention has been made in view of the above circumstances, shortening the construction period, drastically reducing the construction cost, improving the proof stress and earthquake resistance, and there is no column shape or beam shape in the room, and there is freedom in the floor plan, etc. A steel-framed unit-type residential building with a basement that can reduce unit production costs, secure a comfortable living space with high ceiling height, and reduce unit transportation costs while ensuring the original advantages of It is intended to provide.

  In order to achieve the above object, the steel-frame unit housing with basement according to the present invention is a wall in which a metal outer plate is fixed to the outside of a plurality of core steel frames arranged in parallel at a predetermined interval on the same surface. The structure, ceiling structure, and floor structure are assembled at the factory, and are composed of a ramen structure in the beam-to-beam direction and an earthquake-resistant panel structure in the direction of the beam, and a vertical cross-sectional shape that is roughly square-shaped or split into left and right. A single basement unit and a wall structure and ceiling structure with the same specifications as the wall structure and ceiling structure in this basement unit are assembled at the factory, with a ramen structure in the beam-to-beam direction and a seismic panel structure in the cross-beam direction. It consists of a U-shaped unit with a vertical cross-section that is open downward or a plurality of units for ground-based rooms that are divided into left and right to form a substantially L-shaped unit. When buried in In addition, a plurality of ground room units are sequentially stacked on the basement unit, and the ground floor unit on the first floor, the basement unit, and the above-ground units on the upper and lower sides are connected to the end of the wall structure. A basement unit and a plurality of units for a ground-based room are integrally constructed by being fixedly joined to each other in a part-butting state.

  According to the present invention having the above-described configuration, the construction period can be significantly shortened and the construction cost can be greatly reduced as compared with a conventional general steel-framed multi-storey residential building that has been constructed on site. It can be constructed with almost no adverse effects on surrounding houses due to noise and vibration. In addition, because the strength and quality have been stabilized by factory production, and the pillars and beams on each floor have a ramen structure in the inter-beam direction and an earthquake-resistant panel structure in the cross-beam direction, they have enormous proof strength and are also earthquake-resistant Also very good. Furthermore, since there are no columnar or beam shapes in either the basement or the ground-floored room, there is freedom in the floor plan, etc. Has the advantage of

  In addition, according to the present invention, the ground room unit is not box-shaped, and the vertical cross-sectional shape is configured to be a substantially U-shape with a substantially downward opening or a substantially L-shape that is divided into left and right. When building a multi-storey residential building with a basement by sequentially stacking units for basement on the basement unit, the ceiling structure and floor structure of the unit adjacent to the top and bottom do not have a double structure, but the ceiling structure of the lower unit The body also serves as the floor structure of the upper unit. Therefore, the waste of material and the occurrence of excessive strength are eliminated, and the production cost of the unit, and consequently the construction cost of the entire residential building, is reduced accordingly. be able to.

  In addition, at least a plurality of units for the above-ground room are configured to have a substantially U-shaped longitudinal section or a substantially L-shaped section that is divided into left and right, so that the unit can be loaded on a loading platform such as a truck. It is possible to arbitrarily set the overall height of the units for above-ground rooms without being restricted by the limit height of transportation (generally 2900 mm), and as a result, the ceiling height is high. A comfortable and open living space can be obtained. Furthermore, when each unit is loaded on a loading platform such as a truck and transported, if it is a U-shaped unit that is open substantially downward, the two units can be turned upside down so that they are within the limit height of transport. It is possible to stack two units and load them in a small space, and if it is a substantially L-shaped unit, it is possible to stack multiple units and load them in a small space. However, compared to the case of the proposed technology, the required loading space during transportation can be reduced by almost half, and transportation costs can be significantly reduced. There exists an effect that proof stress can be secured.

  In the steel unit type residential building with a basement according to the present invention, as described in claim 2, the basement unit is installed on the solid foundation made of reinforced concrete, and on the outer periphery of the underground portion of the wall structure. By covering the concrete wall, it is possible to ensure the rust prevention and anticorrosion performance required for the basement unit by simple on-site construction such as a reinforced concrete solid foundation and a concrete wall. In particular, expensive thick film type rust prevention and anticorrosion coating work is not required, and the durability of the entire building can be improved economically.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an external front view of a steel-framed unit type two-story residential building with a basement according to the present invention, and FIG. 2 is a longitudinal front view thereof. A single basement unit 1U manufactured using a standardized material, and two above-ground rooms manufactured in the same specifications and structure using the same standardized material (1st floor and 2nd floor) Unit 2U is transported to a housing construction site via a large truck, etc. Among them, a single basement unit 1U is installed on a reinforced concrete solid foundation 3 and buried underground, and for two above-ground rooms Unit 2U is stacked on top of basement unit 1U as a base and fixedly joined to basement BR, ground one-floor room F1 and two-floor ground. It is built in a state having a F2. In addition, the concrete wall 4 is provided in the upper part of the unit 2U which comprises the two-story room F2 above the ground, and it can be used and changed for multiple purposes as a rooftop with a flat roof specification.

  As shown in FIG. 3, the basement unit 1 </ b> U is formed of a steel plate or the like on the outer side of a plurality of core steel frames 5 such as channels and H-shaped steels arranged in parallel on the same surface at a predetermined interval. Four wall structures 7W, ceiling structures 7C, and floor structures 7F, to which the metal outer plate 6 is fixed, are assembled at the factory to form a ramen structure in the beam-to-beam direction, and a composite of earthquake-resistant panel structure in the beam direction. It consists of a pair of left and right divided units 1u, 1u that have a structure and are substantially U-shaped in the longitudinal section.

  Each of the two above-ground room units 2U assembles the wall structure 8W and the ceiling structure 8C having the same specifications (see FIG. 3) as the wall structure 7W and the ceiling structure 7C in the basement unit 1U at the factory. It consists of a pair of left and right divided units 2u, 2u having a composite structure of a ramen structure in the beam-to-beam direction and an earthquake-resistant panel structure in the direction of the beam, and having a substantially L-shaped longitudinal section.

  The pair of left and right divided units 1u, 1u having a substantially U-shaped longitudinal section in the basement unit 1U is placed on the reinforced concrete solid foundation 3 described above with the openings of both divided units 1u, 1u facing each other. After installation, the ends of the structures 7W, 7C, and 7F are joined to each other around the openings and assembled into a substantially cross-sectional shape, and then the core material of each structure 7W, 7C, and 7F As shown in FIG. 3, a predetermined basement BR is constructed by fixing an interior material 9 such as a wall material, a ceiling material, and a floor material.

  In addition, on the outer periphery of the underground buried portion of the wall structure 7W in the basement unit 1U, an unreinforced concrete wall in a state connected to the solid reinforced concrete solid foundation 3 as shown in FIG. 10 is formed by covering, and thereby the anticorrosion and anticorrosion treatment is applied to the entire basement unit 1U.

  On the other hand, the pair of left and right divided units 2u and 2u having a substantially L-shaped vertical cross section in the above-ground one-floor room unit 2U has the wall structures 8W and W of both the divided units 2u and 2u as walls in the basement unit 1U. Stacked on the basement unit 1U so as to be located in the same plane as the structures 7W, 7W, and joined the ends of the ceiling structures 8C, 8C of the two divided units 2u, 2u to open substantially downward in the longitudinal section shape After assembling in a U-shape, the interior material 9 such as a wall material, a ceiling material, and a floor material is fixed inside the core material steel frame 5 of each of the structures 8W and 8C, thereby predetermined predetermined one-floor room F1. Is being constructed. In addition, the outer surface of the metal outer plate 6 of the wall structure 8W in the above-mentioned unit 2U for ground room is subjected to rust and corrosion prevention treatment by spray coating on the rasmol base.

  The pair of left and right divided units 2u and 2u having a substantially L-shaped vertical cross section in the two-story room unit 2U are also mounted on the one-story room unit 2U by the same means as the above-mentioned one-story room unit 2U. After assembling in a substantially downward opening U-shape in the vertical cross-sectional shape, predetermined by fixing an interior material 9 such as a wall material, ceiling material, floor material, etc. inside the core material steel frame 5 of each structure 8W, 8C No. 1 ground floor room F2 is constructed.

  Here, the basement unit 1U, the ground floor unit 2U, and the two ground floor units 2U that are adjacent to each other in the vertical direction are, as clearly shown in FIG. 4, the wall structures 7W and 8W of the units 1U and 2U. The metal plate members 11, 11 fixed to the upper end and the lower end of the core steel frame 5 are brought into contact with each other and rigidly fixed and joined to each other by fillet welding 12 at the site. The unit 1U for use and the two units 2U for ground living rooms are integrally constructed.

  In addition, as shown in FIG. 3, the circumference | surroundings and adjoining of the core material steel frame 5 which comprises the wall structures 7W and 8W in each unit 1U and 2U, the ceiling structures 7C and 8C, and the floor structure 7F in the basement unit 1U A heat insulating layer 13 is formed on the inner surface portion of the metal outer plate 6 between the core steel frames 5 by, for example, in-situ blowing of urethane foam.

  The steel unit type two-story residential building with a basement constructed as described above has the same specifications and the same specifications as a single basement unit 1U manufactured in a factory using standardized members. Unit joining work that two unit for ground floor (1st floor room and 2nd floor room) manufactured in the factory is transported to the house construction site via a large truck, etc., and stacked and fixedly joined. Compared to conventional multi-storey steel-framed residential buildings constructed by full-scale on-site construction, the construction period can be significantly shortened and construction costs can be greatly reduced. It can be constructed with almost no adverse effects.

  In addition, the strength and quality of each unit 1U, 2U are stabilized by factory production, and the pillars and beams of each floor have a ramen structure in the beam-to-beam direction and an earthquake-resistant panel structure in the direction of the beam. Moreover, since the ground room unit 2U is firmly supported by the ground with the base unit 1U as a deep foundation, it has excellent earthquake resistance and durability, such as minimizing the shaking of the ground room unit 2U when an earthquake occurs. It is possible to secure. Furthermore, since neither the basement BR nor the ground room F1 and F2 have a columnar shape or a beam shape in the room, the floor plan and the like are free, and a comfortable living space that is most desirable as a residential building can be obtained.

  In addition, the ground room unit 2U is not box-shaped, but is composed of a pair of substantially L-shaped divided units 2u and 2u in which the U-shaped vertical section is divided into left and right. When building a multi-storey residential building with a basement by sequentially stacking the basement unit 2U on the basement unit 1U, the ceiling structure 7C of the basement unit 1U is the floor structure of the ground floor unit 2U. Further, the ceiling structure 8C of the unit for the first floor room 2U is also used as the floor structure of the unit for the second floor room 2U. Therefore, the material waste due to the double structure and the occurrence of the excessive strength portion are eliminated. Therefore, it is possible to reduce the production cost of the unit 2U and the construction cost of the entire residential building accordingly.

  In addition, the two above-ground room units 2U are composed of a pair of left and right divided units 2u and 2u that are substantially L-shaped in the longitudinal cross-sectional shape, so that they can be transported when loaded on a loading platform such as a truck. Without being restricted by the limit height (generally 2900 mm), it is possible to arbitrarily set the overall height of the above-ground unit 2U, and as a result, the ceiling height is high and comfortable and open. Living space can be obtained. Furthermore, when two ground room units 2U are loaded and transported on a loading platform such as a truck, a plurality of substantially L-shaped divided units 2u and 2u are stacked to reduce the required loading space during transportation. The transportation cost can be significantly reduced by half.

  In the above embodiment, the basement unit 1U has been described as being composed of a pair of left and right divided units 1u, 1u having a substantially U-shaped longitudinal section. For example, if it is set within 2900 mm), it may be configured as a single unit having a substantially rectangular shape in longitudinal section.

  In the above-described embodiment, the above-described unit for ground room 2U has been described as including a pair of left and right divided units 2u and 2u having a substantially L-shaped longitudinal section. In general, if it is set within 2900 mm), it may be constituted by a U-shaped single unit having a longitudinal cross-sectional shape that is substantially downwardly open.

  Further, in the above embodiment, the explanation is applied to a steel-framed unit type two-story residential building with a basement, but a steel-framed unit type one-story residential building with a basement or a steel unit type three-story residential building with a basement. You may apply to.

  It is an external appearance front view of the steel frame unit type 2 story residential building with a basement concerning the present invention.   It is a longitudinal front view of a residential building same as the above.   It is an expanded sectional view of the principal part explaining the structure of each structure of a wall in each unit, a ceiling, and a floor.   It is an expanded sectional view of the principal part explaining the junction structure of the upper and lower adjacent units.   It is a general | schematic external appearance front view of the steel frame unit type | mold multi-storey (3rd floor) house building by the proposed technique.

Explanation of symbols

1U Basement unit 1u Left / right division unit 2U Ground room unit 2u Left / right division unit 3 Reinforced concrete solid foundation 5 Core steel frame 6 Metal skin 7W, 8W Wall structure 7C, 8C Ceiling structure 7F Floor structure 10 Concrete wall BR Basement F1, F2 Above ground

Claims (2)

  A wall structure, a ceiling structure, and a floor structure, in which a metal skin is fixed to the outside of a plurality of core steel frames arranged in parallel on the same surface at a predetermined interval, are assembled at the factory, and a ramen structure in the direction between the beams. And a single basement unit configured in an anti-seismic panel structure in a longitudinal direction and having a substantially cross-sectional shape in a substantially square shape or divided into left and right, and a wall structure and a ceiling structure in the basement unit, A wall structure and ceiling structure of the same specification are assembled at the factory, and the frame structure is a ramen structure in the beam direction and the seismic panel structure in the direction of the beam. It consists of a plurality of ground room units that are configured, and both types of units are brought into the construction site and the basement unit is buried underground, and a plurality of ground room units are sequentially stacked on the basement unit, And A unit for the basement and a plurality of units for the basement by fixing and joining the unit for the ground floor on the first floor, the unit for the basement, and the units for the basement on the top and bottom adjacent to each other in the end butted state of their wall structures A steel-framed unit-type residential building with a basement, characterized by being built as a single unit.   The basement-equipped steel-unit-type residential building according to claim 1, wherein the basement unit is installed on a solid foundation made of reinforced concrete, and a concrete wall is coated on an outer periphery of an underground portion of the wall structure. .

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