JP4553649B2 - Unit construction method building - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a unit method building that is suitably employed in an apartment house, a hotel, an office, and the like, and particularly relates to a structure of a floor beam, a ceiling beam, and a wall.

  In recent years, building units have been developed and put into practical use in buildings such as apartment houses, hotels, and offices. This is because almost completed products of multiple building units are manufactured individually at the factory, and this building unit is transported to the construction site by a trailer. At the construction site, multiple building units are stacked vertically and horizontally using a crane. It is a construction method to build a two-story or higher-level building.

Conventionally, as a vertical joint structure of a building unit, Patent Document 1 generally employs a structure in which a ceiling beam of a lower floor unit and a floor beam of an upper floor unit are bolted near a corner near a column. . That is, the lower floor unit and the upper floor unit are joined by fastening the upper flange of the ceiling beam made of H-shaped steel of the lower floor unit and the lower flange of the floor beam made of H-shaped steel of the upper floor unit with bolts and nuts. ing.
JP-A-7-102645

  However, in the unit construction method building shown in Patent Document 1, since the ceiling beam of the lower floor unit and the floor beam of the upper floor unit are joined, the floor vibration of the upper floor propagates to the lower floor via the beam. In addition, there is a problem that the labor required to ensure accuracy when the ceiling beam and the floor beam are in close contact with each other, and there is a problem that the wiring space and the piping space are restricted, Furthermore, there is a problem that the upper flange of the ceiling beam and the lower flange of the floor beam cannot be coated with the fireproof coating material.

  The present invention solves the above-mentioned conventional problems, and prevents the propagation of floor vibration via the beam, and reduces the labor required to ensure accuracy when the ceiling beam and the floor beam are brought into close contact with each other. An object of the present invention is to provide a unit construction method building capable of realizing an increase in wiring space and piping space and covering of the upper flange of the ceiling beam and the lower flange of the floor beam with a fireproof coating material.

Therefore, the unit method building of the present invention is a unit method building in which a plurality of building units each having a column, a ceiling beam, and a floor beam are joined in the vertical direction, and the lower end of the column of the upper floor unit is A lower-end joining plate larger than the cross-sectional area of the column is provided, flanges are provided at intervals above the plate, floor beams are fixed to the flange, and the cross-sectional area of the column is larger at the upper end of the column of the lower floor unit. upper bonding plate is provided, the flange is provided in its lower, ceiling beams fixed to the upper end joining plate and the flange, the lower surface of the floor beam of the upper surface and the upper floor unit of the ceiling beam of the lower floor unit DOO are voids formed apart from each other and surrounding the ceiling beams and the floor beams is coated with a refractory coating material, the lower bonding plate and the upper joint plate and Bol And characterized in that it is secured by a nut.
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  According to the present invention, since the upper surface of the ceiling beam of the lower floor unit and the lower surface of the floor beam of the upper floor unit are separated from each other, the floor vibration of the upper floor does not propagate through the beam. Further, since the upper surface of the ceiling beam and the lower surface of the floor beam have a structure separated from each other, it is not necessary to bring the ceiling beam and the floor beam into close contact with each other. Furthermore, since the upper surface of the ceiling beam of the lower floor unit and the lower surface of the floor beam of the upper floor unit are separated from each other, the piping space and the piping space can be increased accordingly. In addition, since the ceiling beam and the floor beam have a structure in which the ceiling beam and the floor beam are separated from each other, when the ceiling beam and floor beam are covered with a fireproof covering material at the factory, the periphery of the ceiling beam and floor beam is completely removed. Can be coated.

  Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show one embodiment of a unit construction method building of the present invention, FIG. 1 (A) is a front view, FIG. 1 (B) is a cross-sectional view taken along line BB of FIG. FIG. 2 is a plan view of the joining plate.

  In FIG. 1 (A), the unit construction method building according to the present invention will be described by dividing it into a lower part of an upper floor unit and an upper part of a lower floor unit. It becomes the composition which united the upper part of. The upper floor unit includes at least four pillars including left and right pillars 1 and 2 on the front side and two pillars (not shown) provided on the back side of pillars 1 and 2. Since the two columns provided on the back side of the columns 1 and 2 are configured in the same manner as the columns 1 and 2, only the columns 1 and 2 will be described below. The number of columns is not limited to four, and may be six or more.

  The columns 1 and 2 of the upper floor unit are made of hollow rectangular or circular steel pipes, and lower end joining plates 3 and 4 are fixed to the lower ends by welding. Further, two flanges 5 and 6 and flanges 7 and 8 are provided above the lower end joining plates 3 and 4 in the columns 1 and 2, respectively. Further, a single floor beam 9 made of H-shaped steel is fixed between the flanges 5 and 6 and the flanges 7 and 8 by welding. A floor board 10 made of ALC is laid on the floor beam 9. Further, although not shown, 1 is also provided between the column 1 and the column on the back side, between the column 2 and the column on the back side, and between the columns on the back side of the columns 1 and 2. The floor beam of the book is fixed by welding.

  The lower end joining plate 3 fixed to the lower end of the pillar 1 is a rectangular or circular plate having an area larger than the cross-sectional area of the pillar 1 as shown in FIG. Bolt holes 3A are formed. Similarly, four bolt holes are formed around the pillar 2 in the lower end joining plate 4 of the pillar 2.

  In FIG. 1, the upper structure of the upper floor unit is the same as the upper structure of the lower floor unit, and the lower structure of the lower floor unit 2 is the same as the lower structure of the upper floor unit 1. Upper end joining plates 23 and 24 are fixed to the upper ends of the columns 21 and 22 by welding. Also, one flange 25, 26 is provided below the upper end joining plates 23, 24 in the columns 21, 22, respectively. Furthermore, one ceiling beam 27 made of H-section steel is fixed between the upper end joining plate 23 and the flange 25 and the upper end joining plate 24 and the flange 26 by welding. Although not shown, one ceiling beam is also fixed by welding between the column 21 and the column on the back side and between the column 22 and the column on the back side. .

  As shown in FIG. 2B, the upper end joining plate 23 fixed to the upper end of the column 21 is a rectangular or circular plate having an area larger than the cross-sectional area of the column 21, Bolt holes 23A are formed. Similarly, four bolt holes are formed around the column 22 in the upper end joining plate 24 of the column 22.

  In the present embodiment, the dimensions of the above-described members are set so that the gap 11 having a predetermined height L (for example, 100 mm) is formed between the lower surface of the floor beam 9 and the upper surface of the ceiling beam 27. ing. As shown in FIG. 1B, the periphery of the floor beam 9 is covered with a fireproof covering material 30. The periphery of the ceiling beam 27 is also covered with a fireproof covering material 31. As the fireproof coverings 30 and 31, rock wool spraying is suitable.

  Here, in the case of the conventional unit construction method building, since the upper surface of the ceiling beam of the lower floor unit and the lower surface of the floor beam of the upper floor unit are joined, the fireproof coating material is coated after the joining. It was. At this time, since the fireproof covering material cannot be covered on the upper surface of the ceiling beam and the lower surface of the floor beam, the side surfaces of the ceiling beam and the floor beam are covered. On the other hand, according to the present invention, the upper surface of the ceiling beam 27 and the lower surface of the floor beam 9 are separated from each other. It is possible to completely cover with a fireproof coating material, and the coating work at the construction site becomes unnecessary.

  A method of joining the upper floor unit on the lower floor unit configured as described above will be described. Here, the lower end joining plate (not shown) of the lower floor unit is fixed to the foundation. Further, the following procedure is naturally performed for the four pillars of the upper floor unit 1, but only the pillars 1 and 2 will be described for convenience of reference to the drawings.

  When the upper floor unit is joined on the lower floor unit, the upper floor unit is lifted with a crane and formed on the periphery of the lower end joining plates 3 and 4 fixed to the lower ends of the pillars 1 and 2 of the upper floor unit. The upper floor unit is lowered and positioned so that the bolt hole 3A matches the bolt hole 23A formed around the upper end joining plates 23 and 24 fixed to the upper ends of the pillars 21 and 22 of the lower floor unit. And the upper end joining plates 23 and 24 and the lower end joining plates 3 and 4 are fixed by bolts 28 and 29 and nuts, respectively. The same operation is repeated when further units are joined on the upper floor unit.

  The basic idea of the present invention is to assemble everything that can be assembled in the factory at the factory and to reduce the number of constructions on site. Drawing 3 shows other embodiments of a unit construction method building of the present invention, and Drawing (A) is a top view and Drawing (B) is an elevation.

  In the present embodiment, the building unit 50 is composed of six pillars 51 and beams connecting them, and a toilet 52 and a bathroom 53 are provided inside the building unit 50, and further, a system kitchen 54, an air conditioner A machine 55 and a door 56 are arranged. A corridor 57 and a balcony 59 are connected to the outside of the building unit 50. A wall panel 60 serving as a door wall is fixed between the columns 51 and 51. These chambers and members are all manufactured or installed at the factory stage.

FIG. 4: shows other embodiment of the unit construction method building of this invention, a figure (A) is a top view, a figure (B) is a left view of a figure (A), and a figure (C) is a figure (A). FIG. In addition, about the same structure as the said embodiment, the same number is attached | subjected and description is abbreviate | omitted.
In the present embodiment, the outer wall panel 61 is fixed to the outer wall on the corridor 57 side at a portion excluding the door 56. An outer wall panel 63 is fixed to the outer wall on the balcony 59 side except for the window 62. These outer wall panels 61 and 63 are all manufactured or installed at the factory stage.

It is a figure which shows one Embodiment of the unit construction method building of this invention. It is a top view which shows the joining plate of FIG. It is a figure which shows other embodiment of the unit construction method building of this invention. It is a figure which shows other embodiment of the unit construction method building of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1, 2, 22 ... Column 3, 3, 4 ... Lower end joining plate, 9 ... Floor beam, 11 ... Air gap 23, 24 ... Upper end joining plate, 27 ... Ceiling beam, 30, 31 ... Fireproof covering material

Claims (1)

A unit construction building in which a plurality of building units having columns, ceiling beams, and floor beams are joined vertically.
A lower end joining plate larger than the cross-sectional area of the column is provided at the lower end of the column of the upper floor unit, a flange is provided at an interval above the plate, and a floor beam is fixed to the flange.
An upper end joining plate larger than the cross-sectional area of the pillar is provided at the upper end of the pillar of the lower floor unit, and a flange is provided therebelow, and a ceiling beam is fixed to the upper end joining plate and the flange,
Said lower surface and a gap apart from each other in the floor beams are formed, and covering the periphery of the ceiling beams and the floor beams is a refractory coating material of the upper surface and the upper floor unit of the ceiling beam of the lower floor unit is, the lower unit construction method building, characterized in that it is fixed by a joining plate and the upper joint plate and bolts and nuts.

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