JP2021092073A - Prefabricated building - Google Patents

Abstract

To carry prefabricated members manufactured as units at the factory so as to constitute each part of the building to the construction site and assembly.SOLUTION: The invention includes: a hut frame 3, pillars 5 erected on a foundation to support the hut frame 3; a building frame structure 2 consisting of beams 6 and 7 installed between the pillars 5; a membrane roof 10 stretched so as to cover the upper surface of the hut frame 3; a ceiling unit 20 stretched at a predetermined distance on the inner surface side of the membrane roof 10; a substrate unit attached so as to cover the partitioned surface by columns 5 and beams 6 which constitute the outer surface in the building frame structure 2; outer wall panel units 30, 40 which are attached to the substrate unit via connecting members to constitute the outer wall surface of the building frame structure 2; and a floor panel unit 70 which is directly laid on the beams 6, 7 as support sides and fixedly supported on beams 6 and 7 via a locking portion.SELECTED DRAWING: Figure 2

Description

The present invention relates to a prefabricated building, and by carrying the prefabricated member manufactured as a unit in a factory so as to constitute each part of the building to a construction site and assembling it, the building can be constructed quickly. Regarding prefabricated buildings that can be easily relocated.

As buildings such as houses and stores, prefabricated buildings in which each member is manufactured in advance at a factory and assembled at the site are widespread. For example, Patent Document 1 discloses a building in which a roof portion is constructed by combining wooden panels.

JP-A-2002-371630

Since the wooden panel of the building disclosed in Patent Document 1 is assembled by nailing or the like, it is difficult to remove it once it is assembled. Also, the wood panel has a certain weight. Therefore, there is a problem that it is difficult to dismantle the completed building and move it to another place.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a building that can be easily relocated.

The building according to the present invention includes a hut structure, a building frame structure consisting of columns erected on a foundation to support the hut structure, and beams erected between the columns, and the hut structure. It is partitioned by a membrane roof stretched so as to cover the upper surface, a ceiling unit stretched at a predetermined distance on the inner surface side of the membrane roof, and columns and beams constituting the outer surface of the building frame structure. The base unit that is attached so as to cover the surface, the outer wall panel unit that is attached to the base unit via a connecting member and constitutes the outer wall surface of the building frame structure, and the beam are directly laid as support sides. The beam is provided with a floor panel unit that is fixedly supported via a locking portion.

Perspective view of a building according to an embodiment of the present invention An exploded perspective view of a building according to an embodiment of the present invention. A perspective view showing a state in which a ceiling unit is attached to a cabin of a building according to an embodiment of the present invention. An exploded perspective view showing a ceiling unit of a building according to an embodiment of the present invention. Enlarged view of "V" part in FIG. Sectional drawing focusing on column base of building which concerns on embodiment of this invention A perspective view showing a part of the outer wall portion of the building according to the embodiment of the present invention. A perspective view showing an example in which an outer wall panel is attached to a base unit of a building according to an embodiment of the present invention. A perspective view showing a base unit of a building according to an embodiment of the present invention. Enlarged view of "X" part in FIG. An exploded perspective view showing a floor panel of a building according to an embodiment of the present invention. A perspective view showing a situation in which a floor panel of a building according to an embodiment of the present invention is laid. Enlarged view of "XIII" part in FIG.

Hereinafter, the building according to the preferred embodiment of the present invention will be described with reference to the drawings.

(Overall composition of the building)
As shown in FIG. 1, the building 1 according to the embodiment of the present invention is a temporary building used for a facility such as a showroom that is used for a limited period of time and is relocated. The exterior is composed of a hipped roof 10 and outer walls 30 and 40 (the remaining two walls are not shown in FIG. 1).

As shown in FIG. 2, the building 1 includes a membrane roof 10, a building frame structure 2, a ceiling unit 20 assembled to the building frame structure 2, a first outer wall portion 30, a second outer wall portion 40, and a third outer wall portion. It has 50, a fourth outer wall portion 60, and a floor 70. The building frame structure 2 has a cabin 3 to which the ceiling unit 20 is attached, columns 5, girders 6, and girders 7.

(Structure of Membrane Roof 10)
The roof of the building 1 in the present embodiment is a membrane roof 10 made of a membrane material stretched on the outermost side that covers the entire roof. The membrane material of the membrane roof 10 is based on, for example, a white synthetic fiber woven fabric, and the surface thereof is coated with a fluorine-based resin or a polyvinyl chloride-based synthetic resin having weather resistance.

(Structure of ceiling unit 20)
The ceiling unit 20 is provided inside the membrane roof 10 and is attached to the cabin 3 as shown in FIG. As shown in FIG. 4, the ceiling unit 20 includes a moisture-permeable waterproof sheet 21, a heat insulating material sheet 22, a support wire 25, a laminated sheet in which a moisture-proof film 23 is integrated, and a ceiling surface sheet 24. ing. Of these, the heat insulating material sheet 22 of the present embodiment is composed of a moisture-permeable waterproof sheet 21 having a thickness of the film roof 10 side and the heat insulating material sheet 22, and a laminated sheet having the ceiling surface sheet 24 side wrapped with a moisture-proof film 23. In the laminated sheet, a plurality of support wires 25 are wired in parallel at predetermined intervals as tension members in the width direction thereof. The laminated sheet may be configured such that the entire heat insulating material sheet 22 is wrapped with the moisture-proof film 23.

In the present embodiment, the moisture permeable waterproof sheet 21 is made of, for example, a plain white high-density polyethylene non-woven fabric. The heat insulating material sheet 22 is made of a white polyester-based heat insulating material having a thickness of 50 mm and having a translucency. Regarding the thickness, it is preferable to use a heat insulating material having an appropriate thickness of about 10 to 100 mm depending on the building scale, heat insulating specifications, and the like. The moisture-proof film 23 is made of, for example, a polyethylene sheet.

The support wire 25 is made of a steel wire having a predetermined tensile strength, and hooks 25a are formed at both ends thereof. The hook 25a of the support wire 25 is locked and held by a fixing portion (not shown) provided in the cabin 3 to form a laminated sheet consisting of a moisture permeable waterproof sheet 21, a heat insulating material sheet 22, and a moisture proof film 23. The ceiling unit 20 is stretched so as to cover the cabin 3 from the inside.

The ceiling surface sheet 24 is made of, for example, white synthetic fibers, and its surface is coated with a fluorine-based resin or a polyvinyl chloride-based synthetic resin. As described above, since each of the film materials constituting the film roof 10 and the ceiling unit 20 is made of a translucent material, sufficient lighting in the room is secured. Since the ceiling surface sheet 24 is stretched inside the moisture-proof film 23 and constitutes the ceiling surface facing the interior of the building 1, the selection of materials for the interior can also be considered.

(Structure of building frame structure 2)
The building frame structure 2 is composed of a steel structure formed by assembling various steel materials, and as shown in FIG. 2, the hut structure 3 having a truss structure and the four corner columns supporting the hut structure 3 are intermediate between the two. It consists of a total of six columns 5, a girder 6 erected between adjacent columns 5, and a girder 7 erected between the girders 6 at predetermined intervals for laying the floor 70. When the girder 6 and the girder 7 are collectively referred to, they are described as beams. As shown in FIG. 5, the truss beam of the cabin 3 has an upper chord member 81, a lower chord member 82, and diagonal members 83 and 84 connecting the upper chord member 81 and the lower chord member 82. Both ends of some of the diagonal members 83 and 84 are connected to the gusset plate 85 provided on the upper chord member 81 and the gusset plate 86 provided on the lower chord member 82 with bolts 88.

The upper chord member 81 and the lower chord member 82 forming the truss beam are made of, for example, a round steel pipe, and flanges 89 and 91 are welded to the ends thereof. The field joint of the upper chord member 81 is a bolt joint in which the flanges 89 are butted against each other and fastened with bolts 90. The on-site joint of the lower chord member 82 is a bolt joint in which the flanges 91 are butted against each other and fastened with bolts 92. In this way, each member of the cabin 3 is bolted at the site, whereby the cabin 3 is constructed.

(Structure of column base)
Building 1 is constructed directly on the foundation, for example. As shown in FIG. 6, the foundation concrete 93 that directly forms the foundation has a rectangular recess 93a formed at a position corresponding to the pillar 5. A non-shrink mortar 94 is installed in the recess 93a, and the driven anchor bolt 95 is fixed in a state of protruding from the non-shrink mortar 94. A base plate 5a having a bolt hole 5b formed is welded to the lower end of the pillar 5. Anchor bolts 95 protruding from the non-shrink mortar 94 have nuts 96 tightened while being inserted into bolt holes 5b. As a result, the pillar 5 is fixed on the foundation concrete 93.

A metal cover plate 97 is provided in the recess 93a formed in the foundation concrete 93. The cover plate 97 is formed with a notch 97a that matches the shape of the pillar 5. As a result, the recess 93a is covered with the cover plate 97 without any gap. The upper surface of the cover plate 97 is flush with the top edge of the foundation concrete 93.

(Structure of outer wall)
The outer wall portion of the present embodiment has a configuration different from that of the first outer wall portion 30 on the short side and the second outer wall portion 40 on the long side. As shown in FIG. 1, the first outer wall portion 30 includes a plurality of glass curtain walls 31 arranged in the upper portion of the first outer wall portion 30 in the horizontal direction, and the first outer wall portion 30 along the lower portion in the horizontal direction. It is composed of a plurality of glass curtain walls 32 arranged in a row, and an outer wall panel 100 provided between the glass curtain wall 31 and the glass curtain wall 32. As described above, although the outer wall panel 100 is provided in a part of the first outer wall portion 30, most of the first outer wall portion 30 has a glass curtain wall 31, so that light can enter the inside of the building 1. 32 is formed.

As shown in FIG. 1, the second outer wall portion 40 includes glass curtain walls 41 and 42 arranged in two rows above and below in the left half area in the drawing, and a plurality of outer wall panels 110 and windows 43 in the right half area. Have. The area on the left side of the drawing of the second outer wall portion 40 provided with the glass curtain walls 41 and 42 is an atrium in the internal space of the building 1 in which the inner floor 70 is not provided as shown in FIG. It corresponds to the space. As a result, a large amount of light can be injected into the atrium space in the building 1.

As shown in FIG. 7, the outer wall panel 100 provided on the first outer wall portion 30 includes a galvalume steel plate (registered trademark) 101, which is a metal plate, a gypsum board 102, a heat insulating material board 103, and a galvalume steel plate 104. And consists of laminated panels bonded in this order from the outer surface side. The outer wall panel 100 is arranged so that the galvalume steel plate 101 constitutes the outer surface of the building 1. As an example, the galvalume steel plate 101 and the galvalume steel plate 104 have a thickness of 0.35 mm, the gypsum board 102 has a thickness of 12.5 mm, and the heat insulating material board 103 has a thickness of 50 mm. Further, as shown in FIG. 1, the outer wall panel 100 has dimensions of width W1 and height h1. Here, the width W1 is, for example, 4000 mm, and the height h1 is, for example, 900 mm. The thickness of the outer wall panel 100 is, for example, 63 mm. Further, the heat insulating material board 103 is made of, for example, polystyrene foam.

As shown in FIG. 7, a groove 100a having a rectangular cross section is formed at the upper end of the outer wall panel 100 in the drawing along the width direction. An aluminum mold member 107 is provided so as to cover the upper end of the outer wall panel 100 including the groove 100a. The aluminum mold member 107 has a channel portion 107a that covers the groove 100a, and flange portions 107b and 107c that cover the upper end surface of the outer wall panel 100. Further, as shown in FIG. 10, the aluminum mold member 107 has a chevron steel-shaped mounting portion 107d along the flange portion 107c. As will be described later, the mounting portion 107d is a member for mounting the outer wall panel 100 to the base unit 120 with bolts, and bolt holes (not shown) are formed at the bolt fastening positions.

As shown in FIG. 7, an extruded aluminum mold member 108 having a predetermined cross-sectional shape is provided at the lower end of the outer wall panel 100 in the drawing. The mold member 108 has a protrusion 108a in which a protrusion having a rectangular cross section extends along the width direction of the outer wall panel 100, and flange portions 108b and 108c covering the lower end surface of the outer wall panel 100.

The outer wall panel 100 is attached to the base unit 120 as shown in FIG. As shown in FIG. 1, when the outer wall panel 100 and the glass curtain wall 31 coexist, the glass curtain wall 31 may be attached to the base unit 120 instead of the outer wall panel 100. As shown in FIG. 9, the base unit 120 has a vertical member 121 and a horizontal member 122 which are rod-shaped members assembled in a grid pattern, and brackets 123 provided on the vertical member 121 at equal intervals. The plurality of vertical members 121 are provided at equal intervals P1. The interval P1 is, for example, 1000 mm. Further, the plurality of brackets 123 are provided at intervals P2 equal to the vertical members 121. P2 is, for example, 900 mm.

The base unit 120 is made of, for example, a structural steel assembly member, and is provided with a gap P1 between the base unit 120 and the adjacent base unit 120 as shown in FIG. The base unit 120 arranged in this way is fixed to the pillar 5 and the girder 6 of the building 1 shown in FIG. 2 with bolts as connecting members. By arranging the base unit 120 in this way, all the vertical members 121 can be arranged at equal intervals P1.

As shown in an enlarged manner in FIG. 10, the bracket 123 is formed of channel steel having U-shaped notches 123a formed at both ends, for example. The bracket 123 is attached by welding to a predetermined position of the base unit 120.

As shown in FIG. 10, the outer wall panel 100 is fixed to the base unit 120 by tightening the nut 125 to the bolt 124 passed through the notch 123a of the bracket 123 and the bolt hole (not shown) of the mounting portion 107d. There is. As described above, the vertical members 121 to which the bracket 123 is attached are arranged at intervals of 1000 mm. Therefore, the outer wall panel 100 having a width of 4000 mm is fixed to the base unit 120 via the brackets 123 at five positions.

As shown in FIG. 7, among the upper and lower outer wall panels 100, the protrusion 108a of the outer wall panel 100 located on the upper side is inserted into the groove 100a of the outer wall panel 100 located on the lower side. As a result, the adjacent outer wall panel 100 can be attached to the base unit 120 in a stable state without causing a shift. A gasket 105 is interposed between the groove 100a of the outer wall panel 100 located on the lower side and the protruding portion 108a of the outer wall panel 100 located on the upper side. Further, a gasket 106 is inserted from the outer surface side between the outer wall panel 100 located on the lower side and the outer wall panel 100 located on the upper side. The gasket 105 is, for example, a silicon sponge formed in a band shape, and is arranged in the longitudinal direction so that the groove 100a extends. Further, the gasket 106 has a groove-shaped cross section, and is made of, for example, ethylene propylene rubber. By providing the gasket 105 and the gasket 106 in this way, it is possible to prevent rainwater from entering the inside of the building 1.

In the above description, the configuration of the portion where the upper end and the lower end of the outer wall panel 100 are connected as shown in FIG. 7 has been described, but the same configuration is also provided on both side ends of the outer wall panel 100. That is, a groove 100a is formed at one side end of the outer wall panel 100, and a protrusion 108a is formed at the other side end of the outer wall panel 100. Then, in the outer wall panel 100 adjacent in the horizontal direction, the protruding portion 108a of the other outer wall panel 100 is inserted into the groove 100a of one outer wall panel 100, so that the outer wall panel 100 is in a stable state without rattling. Is attached to the base unit 120. A gasket similar to the gasket 105 and the gasket 106 shown in FIG. 7 is also provided between the outer wall panels 100 adjacent to each other in the horizontal direction to prevent rainwater from entering.

Further, in the above description, the details of the outer wall panel 100 having a width of 4000 mm have been described, but the outer wall panel 110 provided in the second outer wall portion 40 shown in FIG. 1 also has the same configuration. However, the width W2 of the outer wall panel 110 is 3000 mm, which is smaller than the width of the outer wall panel 100. Since only the outer wall panels 100 and 110 of these two sizes are used in the building 1, the structure of the outer wall portion is simplified. As a result, the manufacturing cost can be reduced. The outer wall panel 110 having a width of 3000 mm is fixed to the base unit 120 via four brackets 123 (FIG. 10). The height h2 of the outer wall panel 110 is, for example, 900 mm, which is the same height as the height h1 of the outer wall panel 100.

(Structure of floor 70)
As shown in FIG. 2, the floor 70 is configured by laying a plurality of floor panels 71 on the girder 6 and the girder 7. As shown in FIG. 11, the floor panel 71 is composed of a metal frame frame 72, a gypsum board 73, a plywood 74, and a finishing material 75, which are floor materials laid on the frame 72. The gypsum board 73, the plywood 74, and the finishing material 75 are laminated and held as a whole by the frame 72. Further, a U-shaped notch 72a is formed in a part of the inside of the frame material of the frame 72. Although two notches 72a are shown in FIG. 11, similar notches are also formed on the front side facing each other. That is, a total of four notches 72a are formed in the frame 72.

As shown in FIG. 12, the girder 6 and the girder 7 are temporarily installed so that the floor panel 71 is laid without a gap. A plurality of locking hardware 126 for fixing the floor panel 71 are provided on the upper surfaces of the flanges of the girder 6 and the girder 7. In FIGS. 12 and 13, only the frame 72 is shown in the central floor panel 71 in order to pay attention to the connecting portion between the floor panel 71 and the beam 7. As shown in FIG. 13, the locking metal fitting 126 provided on the beam 7 is formed of, for example, channel steel, and a U-shaped notch 126a is formed from the end portion. The U-shaped notch 126a is similarly formed at the other end of the locking hardware 126. A notch formed at the other end is used to secure the adjacent floor panel 71.

In the floor panel 71 mounted on the girder 6 and the beam 7, as shown in FIG. 13, the position of the notch 72a formed in the frame 72 and the position of the notch 126a formed in the locking hardware 126 Match. Then, the bolt 127 is passed through the matching notch 72a and the notch 126a, and the nut 128 is tightened. Such fastening of the bolt 127 and the nut 128 is performed by the four notches 126a formed in the frame 72. In this way, the floor panel 71 is fixed to the girder 6 and the girder 7.

(Construction method)
Next, the construction method of the building 1 will be described. First, the foundation is directly constructed as the foundation of the building 1. As shown in FIG. 6, a rectangular recess 93a is formed in the foundation concrete 93 of the direct foundation at a position corresponding to the pillar 5. Further, the anchor bolt 95 is installed before placing the concrete, and the anchor bolt 95 is fixed to the foundation concrete 93 after hardening. After the foundation is directly constructed, the non-shrink mortar 94 is constructed in the recess 93a.

Each member of the hut structure 3, the pillar 5, the girder 6, and the girder 7 constituting the building frame structure 2 (FIG. 2) is manufactured in advance at the factory. In addition, when assembling the building frame structure 2, on-site welding is eliminated as much as possible, and not only the columns and beams are joined by bolts, but also the huts 3 are connected as shown in FIG. It is done by bolting.

To assemble the building frame structure 2, first, as shown in FIG. 6, anchor bolts 95 protruding from the non-shrink mortar 94 are passed through the base plate 5a and fastened with nuts 96. Next, the cover plate 97 is installed to cover the recess 93a. In this way, the pillar 5 is erected on the foundation concrete 93. Next, the girder 6, the girder 7, and finally the hut 3 are bolted together to construct the building frame structure 2. At this time, as shown in FIG. 5, the upper chord member 81 and the lower chord member 82 of the cabin 3 are also connected by bolting via the flanges 89 and 91.

Subsequently, the ceiling unit 20 shown in FIG. 4 manufactured in advance is attached to the cabin 3 shown in FIG. First, the hooks 25a formed at both ends of the support wire 25 are hung on the cabin 3, so that the laminated sheet composed of the moisture permeable waterproof sheet 21, the heat insulating material sheet 22, and the moisture-proof film 23 is attached to the cabin 3. Subsequently, the ceiling surface sheet 24 is stretched inward with a predetermined distance from the moisture-proof film 23. When all the ceiling units 20 are attached to the cabin 3, the membrane roof 10 shown in FIG. 2 is finally attached so as to cover the cabin 3. As a result, the roof of the building 1 can be constructed.

Next, the floor panel 71 manufactured in advance is lifted by a crane (not shown) as shown in FIG. 12, and placed at predetermined positions of the girder 6 and the girder 7. As a result, as shown in FIG. 13, the position of the notch 72a formed in the frame 72 and the position of the notch 126a formed in the locking hardware 126 coincide with each other. Then, the bolt 127 is passed through the matching notch 72a and the notch 126a and tightened with the nut 128. In this way, all the floor panels 71 are fixed on the girder 6 and the girder 7, and the floor 70 is constructed.

Subsequently, the base unit 120 shown in FIG. 9 which has been manufactured in advance is fixed with bolts at predetermined positions of the pillar 5 and the girder 6 of the building 1 shown in FIG. As shown in FIG. 8, the plurality of base units 120 are fixed to the columns 5 and the girders 6 so that the vertical members 121 are arranged at equal intervals.

Next, the outer wall panel and the glass curtain wall are attached to the base unit 120. First, as shown in FIG. 10, the outer wall panel 100 manufactured in advance is brought close to the base unit 120 so that the notch 123a of the bracket 123 and the bolt hole (not shown) of the mounting portion 107d coincide with each other. Subsequently, the bolt 124 is passed through the notch 123a and the bolt hole (not shown) and tightened with the nut 125 to fix the outer wall panel 100 to the base unit 120.

When another outer wall panel 100 is attached above the outer wall panel 100 attached to the base unit 120 in this way, first, as shown in FIG. 7, a strip-shaped gasket is formed in the groove 100a of the outer wall panel 100 located on the lower side. Accommodates 105. Next, the gasket 106 is arranged at the upper end on the front side of the groove 100a of the outer wall panel 100. Subsequently, the protruding portion 108a of the outer wall panel 100 arranged on the upper side is inserted into the groove 100a of the outer wall located on the lower side. As a result, the outer wall panel 100 to be attached to the upper side can be aligned. At this time, a gasket 105 is interposed between the groove 100a of the outer wall panel 100 located on the lower side and the protruding portion 108a of the outer wall panel 100 located on the upper side. Further, the gasket 106 can be interposed between the upper end of the outer wall panel 100 located on the lower side and the lower end of the outer wall panel 100 located on the upper side.

Further, when the outer wall panel 100 is arranged along the horizontal direction, the gasket is similarly arranged at the horizontal end of the outer wall panel 100, and the groove of one outer wall panel 100 is filled with the other outer wall. The protruding portion is fitted to position the outer wall panel 100 to be attached. Then, as shown in FIG. 10, the outer wall panel 100 is fixed to the base unit 120 with bolts.

The case where the outer wall panel 100 is attached to the base unit 120 has been described above, but as shown in FIG. 1, the outer wall panel 110, the glass curtain wall 31, 32, 31, 42, which are different in size from the outer wall panel 100, The outer wall portion of the building 1 can be constructed by attaching the window 43 or the like to the base unit 120.

(effect)
According to the above embodiment, the ceiling of the building 1 has a double membrane ceiling structure composed of a laminated heat insulating material sheet and a ceiling surface sheet 24, as compared with a membrane structure composed of one membrane. It is possible to improve heat insulation, airtightness, and sound insulation, and it is possible to reduce the air conditioning load, prevent dew condensation, and reduce rain noise, which have been the weak points of a single membrane structure in the past. Furthermore, by incorporating a heat insulating material in the double membrane that allows light to pass through and improving the heat insulating and airtightness, it is expected that the heat insulating and airtightness will be improved against heat and cold, and it will be possible to approach the heat insulating property of the metal roof. .. In addition, it is possible to prevent dew condensation in winter, rainy season, etc., and dew condensation in the kitchen of the restaurant tenant.

Further, since the membrane roof 10 and the membrane materials constituting the ceiling unit 20 are made of a material that allows light to pass through, sufficient light can be taken into the interior of the building 1 to provide a bright interior space. be able to. Further, by providing the ceiling unit 20 with the heat insulating material sheet 22, it is possible to improve the heat insulating performance and prevent dew condensation that tends to occur on the ceiling.

As shown in FIG. 5, the on-site joint as a connecting means of the upper chord member 81 and the lower chord member 82 constituting the truss beam of the cabin 3 is a bolt joint. As a result, the cabin 3 can be easily assembled and disassembled only by attaching / detaching and tightening / loosening the connecting bolts. Therefore, the transportation of the cabin 3 after dismantling becomes easy, and each part of the cabin 3 can be easily assembled by connecting the parts of the cabin 3 with bolts at the relocation destination. In this way, the building 1 once assembled can be dismantled and easily relocated to another place.

As shown in FIG. 6, since the column base is fixed to the anchor bolt 95 of the foundation by nut tightening, the column 5 can be removed from the foundation concrete 93. Then, the pillar 5 once assembled can be removed and easily relocated to another place.

Since the base plate 5a, the anchor bolt 95, and the nut 96 are housed in the recess 93a formed in the foundation concrete 93, these members do not interfere with the work. Further, since the recess 93a provided in the foundation concrete 93 is covered with the cover plate 97, the recess 93a does not hinder the work. As a result, the workability of the building 1 can be improved, so that the dismantling and assembling work at the time of relocation can be speeded up.

As shown in FIG. 7, by sandwiching the gypsum board 102 and the heat insulating material board 103 between two metal galvalume steel plates 101, heat insulating performance and strength can be added to the outer wall panels 100 and 110. .. Further, by adding strength to the outer wall panels 100 and 110, the base unit 120 can be miniaturized, and the manufacturing cost of the base unit 120 can be suppressed.

As the outer wall panel of the building 1, for example, only two types of the outer wall panel 100 having a width of 4000 mm and the outer wall panel 110 having a width of 3000 mm are used, so that the structure of the outer wall portion can be simplified. it can. Further, since the base unit 120 to which the outer wall panel is attached may be configured to be compatible with only two types of outer wall panels, standardization is easy. Therefore, it can be manufactured in advance at the factory, and the construction period can be shortened and the construction accuracy can be improved. Needless to say, the size of the outer wall panel can be only one type or three or more types.

The base unit 120 is attached to the pillar 5 and the girder 6 of the building 1 with bolts. Further, the outer wall panels 100, 110, the glass curtain walls 31, 32, 31, 42, and the window 43 are also configured to be attached to the base unit 120 with bolts (not shown). As a result, dismantling can be easily performed, and the disassembled members can be easily transported and relocated to another place.

A gasket 105 and a gasket 106 are interposed in the gap provided between the adjacent outer wall panels 100 and 110 so as to close the gap. When disassembling the outer wall portion, the gasket 105 and the gasket 106 can be easily removed, and the connecting portion of the outer wall panel can be easily removed. Further, when the building 1 is relocated, the removed gasket 105 and gasket 106 can be reused. As a result, the cost incurred at the time of relocation can be suppressed.

Further, the floor 70 is formed by laying the floor panel 71 manufactured in advance at the factory on the girder 6 and the girder 7. As a result, the construction speed and construction accuracy of the floor 70 can be improved. Further, since the floor 70 is laid on the structural skeleton such as the girder 6 and the girder 7, it is possible to save labor for constructing the base for laying the floor panel 71.

Further, the floor panel 71 is attached to the girder 6 and the girder 7 with bolts via locking hardware. As a result, the floor panel 71 can be easily removed from the locking hardware, the work at the time of dismantling can be speeded up, and the relocation of the building can be easily performed.

The present invention allows for various embodiments and modifications without departing from the broad spirit and scope of the present invention. Moreover, the above-described embodiment is for explaining the present invention, and does not limit the scope of the present invention. That is, the scope of the present invention is indicated not by the embodiment but by the claims. And various modifications made within the scope of the claims and within the equivalent meaning of the invention are considered to be within the scope of the present invention.

1 Building, 2 Building frame structure, 3 hut structure, 5 pillars, 6 girders, 7 girders, 10 curtain roofs, 20 ceiling units, 21 moisture permeable waterproof sheets, 22 insulation sheets, 23 moisture proof films, 24 ceiling surface sheets , 25 Support wire, 25a hook, 30 1st outer wall, 31, 32 glass curtain wall, 40 2nd outer wall, 41, 42 glass curtain wall, 70 floors, 71 floor panels, 72 frames, 81 first chords, 82 lower chords Material, 93 foundation concrete, 93a recess, 100 outer wall panel, 101 galvalume steel plate, 102 gypsum board, 103 insulation board, 104 galvalume steel plate, 105, 106 gasket, 107, 108 aluminum mold material, 110 outer wall panel, 120 base unit, 126 Locking hardware

Claims (8)

A building frame structure consisting of a hut, columns erected on the foundation to support the hut, and beams erected between the columns.
A membrane roof stretched so as to cover the upper surface of the hut,
A ceiling unit stretched at a predetermined distance on the inner surface side of the membrane roof,
Of the building frame structure, a base unit attached so as to cover the surface partitioned by columns and beams constituting the outer surface, and
An outer wall panel unit that is attached to the base unit via a connecting member and constitutes an outer wall surface of the building frame structure.
A floor panel unit that is directly laid with the beam as a support side and fixedly supported by the beam via a locking portion.
Prefabricated building with. The prefabricated building according to claim 1, wherein the ceiling unit includes a heat insulating material sheet stretched on the membrane roof side and a ceiling surface sheet constituting the ceiling surface on the indoor side. 2. The heat insulating material sheet is made of a laminated sheet, and is stretched by fixing and holding the ends of a plurality of tension wire rods wired so as to be sandwiched between the sheets to a part of the beam of the cabin. Prefabricated building described in. The prefabricated building according to claim 1, wherein the base unit is made of a steel frame member having a grid frame shape having dimensions corresponding to the external dimensions of the outer wall panel unit. The prefabricated building according to claim 1, wherein the outer wall panel unit is a laminated member in which a heat insulating material board is used as a core material and both sides thereof are sandwiched between metal plates. The prefabricated building according to claim 1, wherein a gasket is interposed between the adjacent outer wall panel units attached to the base unit with a predetermined gap. The prefabricated building according to claim 4, wherein the base unit is a prefabricated building in which connecting members for attaching the outer wall panel unit are arranged at predetermined intervals in the longitudinal direction of the frame member. The prefabricated building according to claim 1, wherein the floor panel unit is a prefabricated building in which the peripheral edge of the laminated floor panel is held by a frame frame.

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