Buildings and their construction methods

Abstract

To provide a building which can be constructed using a wall panel whose height is suppressed, and a construction method for achieving the same.SOLUTION: A building 100 includes: a wall panel 1; and a floor panel 5 placed on the wall panel 1. The wall panel 1 has: a through column 2 in which a longer direction is along a vertical direction; and a stud receptacle 3 in which the longer direction is along a horizontal direction. The floor panel 5 includes: a beam 6 in which the longer direction is along the horizontal direction; and a floor plate 50 placed on an upper surface of the beam 6. The stud receptacle 3 is connected to a side surface of an upper end part 2a in the longer direction of the through column 2. The beam 6 is placed on the upper surface of the stud receptacle 3 in a state of being along an extension direction of the stud receptacle 3.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a building and a construction method thereof. [Background technology]

[0002] Patent Document 1 describes a metal rod for joining wood and a wood panel construction method using the metal rod. The metal rod is used to join wood pieces, such as columns and columns, columns and beams, or wood panels. The wood panel construction method involves fabricating wood panels for building walls in advance in a factory or other facility, and then connecting the panels together at the construction site to construct the building walls. The wood panels are manufactured in a factory using columns, beams, lower frame members, upper and lower horizontal members, narrow end vertical members on both sides, and a central vertical member that is thicker than the end vertical members. The wood panels are then housed in a space surrounded by the horizontal members, end vertical members, and central vertical member, and insulation is placed in the space. Plywood is then laid over the horizontal members, end vertical members, central vertical member, and insulation.

[0003] Patent Document 2 describes a shear wall and its construction method. This shear wall has a face plate attached to a rectangular opening surrounded by a base, a pair of left and right columns erected on the base with a gap between them, and a beam spanning the upper part of the pair of columns. This shear wall can be constructed by manufacturing the shear wall constituent panels in a factory and attaching them to the base. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-002264 [Patent Document 2] Japanese Patent Application Publication No. 2019-214878 Summary of the Invention [Problem to be solved by the invention]

[0005] Wall panels, such as wood panels and shear walls, as described in Patent Documents 1 and 2, can be prefabricated in factories, delivered to the construction site, and used directly in wall construction, thereby reducing on-site labor hours. However, conventional wall panels, as described above, include beams as well as columns. Therefore, if the interior space of a building is designed to be higher than a specified height, the height of the wall panels cannot be made lower than the height at which the beams must be installed. This makes transportation to the construction site inconvenient. Furthermore, when wall panels are loaded onto trucks and transported on public roads, care must be taken to ensure that the loading dimensions of the wall panels as cargo do not violate legal regulations (e.g., loading height restrictions). Therefore, a building that can be constructed using wall panels with reduced height and a construction method for achieving this are desired.

[0006] The present invention has been made in consideration of the above-mentioned circumstances, and its purpose is to provide a building that can be constructed using wall panels with reduced height, and a construction method for realizing this. [Means for solving the problem]

[0007] The building according to the present invention for achieving the above object comprises: Wall panels and a floor panel placed on the wall panel; The wall panel comprises: a through column whose longitudinal direction is along the vertical direction; A stud support whose longitudinal direction is along the horizontal direction, The floor panel is A beam whose longitudinal direction is along the horizontal direction; a floor plate placed on the upper surface of the beam, The stud support is connected to a side surface of the upper end of the through-column in the longitudinal direction, The beam is placed on the upper surface of the stud receiver in a state aligned with the extension direction of the stud receiver.

[0008] In the building according to the present invention, The stud support may have a first connector that connects the beam.

[0009] In the building according to the present invention, Further provided is an upper floor wall panel placed on an upper surface of the floor panel, The floor panel may have a second connector that connects to the upper floor wall panel.

[0010] In the building according to the present invention, The floor panel is formed in a rectangular shape, A notch is formed in a corner of the floor panel, the corner being located at a corner of the floor panel, When viewed from above, the floor panel may be configured such that the second connector is fixed to an exposed portion of the upper surface of the beam exposed by the cutout portion.

[0011] In the building according to the present invention, The floor panel is It is formed in a rectangular shape, The beam is provided on the short side thereof, Adjacent floor panels may be connected at their ends to the beams.

[0012] In the building according to the present invention, The floor panel includes: A pre-installed floor panel having a long side with the beam; A later-installed floor panel adjacent to the previously installed floor panel and having a long side that does not have the beam; Including, The later-installed floor panel may be arranged with its long side not having the beam adjacent to the beam on the long side of the previously-installed floor panel.

[0013] In the building according to the present invention, When viewed from above, the floor boards of the pre-constructed floor panel are laid within a range inside the outer edge of the beam on the long side of the pre-constructed floor panel that has the beam in the in-plane direction, and the outer edge portion of the beam in the in-plane direction is an exposed edge portion exposed from the floor boards when viewed from above, and the edge portion of the floor board on the long side of the later-constructed floor panel that does not have the beam may be placed on the exposed edge portion.

[0014] In order to achieve the above object, the building construction method according to the present invention comprises: The method includes a step of placing a floor panel having a beam whose longitudinal direction is horizontal and a floor board placed on the upper surface of the beam, on a wall panel having a through column whose longitudinal direction is vertical and a stud support whose longitudinal direction is horizontal and connected to a side surface of the upper end of the through column in the longitudinal direction, In the placing step, the beam is placed on the upper surface of the stud receiver in a state where the beam is aligned along the extension direction of the stud receiver.

[0015] The building construction method according to the present invention further comprises: The placing step may include a floor panel connecting step in which the floor panel is connected to an end of the beam of another adjacent floor panel. [Effects of the Invention]

[0016] It is possible to provide a building that can be constructed using wall panels with reduced height, and a construction method for achieving this. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 2 is an exploded perspective view of the wall panel and floor panel as seen from the indoor side. [Figure 2] FIG. [Figure 3] FIG. 1 is an enlarged view of a stud receiving portion of a wall panel and a connecting portion with another wall panel. [Figure 4] FIG. 10 is a diagram showing the configuration of a connector. [Figure 5] FIG. 2 is a perspective view of the floor panel seen from diagonally above the side. [Figure 6] FIG. 1 is a perspective view of a floor panel seen from below at an angle to the side. [Figure 7] 10A and 10B are diagrams illustrating how a floor panel is placed on a wall panel. [Figure 8] FIG. 10 is a perspective view of a state in which a floor panel is placed on a wall panel. [Figure 9] FIG. 2 is a perspective view of the wall panel and floor panel as seen from the indoor side. [Figure 10] FIG. 10 is a diagram illustrating how an upper floor wall panel is placed on a floor panel. DETAILED DESCRIPTION OF THE INVENTION

[0018] A building and a construction method thereof according to an embodiment of the present invention will be described with reference to the drawings.

[0019] (Summary) As shown in Fig. 1, a building 100 according to this embodiment has a building structure including wall panels 1 that divide an interior space within the building 100, and floor panels 5 that are placed on the wall panels 1. Fig. 1 is an exploded perspective view of the wall panels 1 and floor panels 5, as viewed from the interior side of the room. Fig. 1 shows one wall panel 1 and one floor panel 5, and does not show other parts. Similarly, in the following figures, parts other than those necessary for explanation are omitted as appropriate.

[0020] The wall panel 1 has a through pillar 2 whose longitudinal direction is along the vertical direction and a stud support 3 whose longitudinal direction is along the horizontal direction.

[0021] The floor panel 5 has a beam 6 whose longitudinal direction is along the horizontal direction and a floor board 50 placed on the upper surface of the beam 6.

[0022] In the building structure of the building 100, the stud support 3 is connected to the side of the upper end 2a in the longitudinal direction of the through column 2. In this embodiment, connection includes at least a state in which two or more members are connected and fixed, and a state in which they are joined.

[0023] The beam 6 is placed on the upper surface of the stud receiver 3 in a state aligned along the extension direction of the stud receiver 3.

[0024] The building 100 is constructed by a construction method that includes a placement step of placing floor panels 5 on wall panels 1. In this placement step, beams 6 are placed on the top surfaces of the stud receivers 3 in a state that they are aligned in the extension direction of the stud receivers 3.

[0025] (Detailed explanation) As shown in FIG. 1, a building 100 has a building structure including wall panels 1 and floor panels 5, and is constructed including a foundation structure and a roof structure, which are not shown.

[0026] The wall panel 1 is a panel material that forms the wall portion of the building 100. The wall panel 1 may be pre-assembled in a factory, and the assembled wall panel 1 can be transported to a construction site and used to construct the building 100. By using wall panels 1 pre-assembled in a factory, it is possible to reduce on-site work at the construction site of the building 100 and make the on-site work more efficient. It is also possible to provide a stable, high-quality building 100 without relying on the skill of craftsmen.

[0027] As shown in Figure 2, the wall panel 1 may include a wall frame 10, filled insulation material 11, a structural face material 12, a furring strip support 13, external insulation material 14, a sash 15, and a ventilated furring strip 16. Figure 2 is an exploded perspective view of the wall panel 1. The filled insulation material 11 is placed within the frame of the wall frame 10. The structural face material 12, the furring strip support 13, the external insulation material 14, and the ventilated furring strip 16 are placed, in this order, on the outdoor side of the wall frame 10. An exterior wall material (not shown) of the building 100 (see Figure 1) is attached to the outdoor side of the ventilated furring strip 16.

[0028] The wall frame 10 is a rectangular frame that forms the framework of the wall panel 1. The wall frame 10 may be formed by combining multiple wooden frame members. The wall frame 10 can be formed by joining the frame members using, for example, metal connectors (so-called metal fittings or hardware). As shown in FIG. 1 , the wall frame 10 may include, as frame members, the above-mentioned through columns 2 and stud supports 3, as well as end vertical members 25, lower frame members 26, studs 21, pipe columns 22, window sills 27, and window sills 28. The through columns 2, stud supports 3, end vertical members 25, and lower frame members 26 are frame members that make up the four sides of the wall frame 10.

[0029] The lower frame member 26 is a frame member of the horizontal piece portion of the rectangular wall frame 10 on the opposite side from the stud receiver 3. The lower frame member 26 is disposed parallel to the stud receiver 3.

[0030] The studs 21 are pillar materials that run vertically between the stud support 3 and the lower frame material 26. The studs 21 support the filling insulation material 11, the structural surface material 12, the furring strip support 13, and the like.

[0031] The upper end of the tubular column 22 is connected to the underside of the stud support 3, and is a column material for supporting the load from the stud support 3 with a foundation structure arranged below the wall panel 1.

[0032] The end-side vertical members 25 are frame members on the vertical side of the rectangular wall frame 10 opposite the through-post 2. The end-side vertical members 25 are parallel to the through-post 2. In this embodiment, the studs 21 on the vertical side of the wall frame 10 opposite the through-post 2 are defined as the end-side vertical members 25.

[0033] The window pillar 27 and the window sill 28 are pillar members that form a framework for supporting the sash 15. The window pillar 27 supports the upper side of the sash 15, and the window sill 28 supports the lower side of the sash 15.

[0034] As described above, the through columns 2 are frame materials whose longitudinal direction is arranged along the vertical direction, and are frame materials for the vertical side portions of the wall frame 10. As an example, the through columns 2 are square timbers whose cross section perpendicular to the longitudinal direction is rectangular. The through columns 2 are frame materials that have a larger cross-sectional area perpendicular to the longitudinal direction than the pipe columns 22 and partition studs 21, and are strong (intense) frame materials. The through columns 2 are structural materials that form the framework that supports the entire building. The lower ends of the through columns 2 are supported by the foundation structure, and support the entire building by bearing the load of the wall panels 1 and floor panels 5.

[0035] The through pillar 2 has a third connector 33 that connects the wall panel 1 to another wall panel 1. The third connector 33 will be described later.

[0036] As described above, the stud support 3 is a frame material arranged with its longitudinal direction aligned horizontally. As an example, the stud support 3 is a square timber with a rectangular cross section perpendicular to the longitudinal direction. The stud support 3 is arranged with its end surface facing the side of the upper end 2a of the through post 2 in the longitudinal direction. The stud support 3 is connected to the through post 2 with metal fittings or the like. In other words, the through post 2 and the stud support 3 fit together so that the through post 2 is in contact with each other. In this embodiment, the end surface of the upper end 2a of the through post 2 is flush with the top surface of the stud support 3.

[0037] As shown in Figures 1 and 3, the stud support 3 has a first connector 91 that connects the beam 6 to the stud support 3. The stud support 3 has one or more first connectors 91 on its top surface. Figure 1 shows an example in which four first connectors 91 are arranged.

[0038] As shown in Figure 3, a slit-shaped groove 3c cut downward from the top surface may be formed at the longitudinal end of the stud support 3. The groove 3c may open on the top surface and side surface of the stud support 3. One or more grooves 3c may be formed adjacent to each other in the out-of-plane direction of the wall panel 1, and Figure 3 shows a case where two grooves 3c are formed adjacent to each other.

[0039] The first connector 91 is a metal connector (so-called metal fittings or hardware) for connecting a beam 6, which will be described later, to the stud receiver 3. As shown in FIG. 4, for example, the first connector 91 is a hardware including a tenon pipe 91a, which is a rod-shaped main body with through holes 91b, 91b formed at both ends, and rod-shaped drift pins 91c, 91c. The first connector 91 is inserted from the side of the stud receiver 3, with one end of the tenon pipe 91a fitted into a mortise hole formed in the top surface of the stud receiver 3, and is connected and fixed to the stud receiver 3 by the drift pin 91c inserted into the through hole 91b (see FIG. 3). The other end of the tenon pipe 91a inserted into the mortise hole of the stud receiver 3 is exposed and extends upward. The other end of the tenon pipe 91a is fitted into a mortise hole 61a (see FIG. 6) of the beam 6, which will be described later, and is connected and fixed to the beam 6 by a drift pin 91c in the same way as the connection to the stud support 3 (see FIGS. 8 and 10). In this way, the first connector 91 can connect the beam 6 to the stud support 3.

[0040] As shown in FIG. 3, the third connector 93 is a metal connector (so-called metal fitting or hardware) for connecting a wall panel 1 (wall panel 1A) to another wall panel 1 (wall panel 1B) adjacent to the wall panel 1A. The third connector 93 is provided on a side surface of the upper end 2a of the through-post 2, other than the side surface to which the stud support 3 is connected. In FIG. 3, as an example, the third connector 93 is provided on the side surface of the through-post 2 that faces the room side of the wall panel 1. In this case, the wall panels 1A and 1B are connected perpendicularly. In FIG. 1, as another example, the third connector 93 is provided on the outer surface of the through-post 2 in the in-plane direction of the wall panel 1. In this case, a pair of wall panels 1 can be connected adjacently on the same plane.

[0041] As shown in FIG. 3 , the third connector 93 extends vertically from the side surface of the through-post 2 toward the outside of the through-post 2 and has a planar rib 93a along the longitudinal direction of the through-post 2. For example, the rib 93a may have a slit cut from bottom to top and a through-hole penetrating the plate surface of the rib 93a. The third connector 93 may connect the wall panel 1A and the wall panel 1B by fitting the rib 93a into the groove 3c of the stud support 3 of the wall panel 1B. The positioning of the rib 93a may be performed, for example, by inserting a drift pin into the stud support 3 in advance so as to be perpendicular to the groove 3c, and then fitting the slit portion of the rib 93a into the drift pin. The rib 93a can be fixed to the stud support 3 by fitting the rib 93a into the groove 3c and then inserting another drift pin into the stud support 3 so as to pass through the through-hole penetrating the plate surface of the rib 93a.

[0042] When fitting the rib 93a into the groove 3c, the rib 93a can be inserted downward from above into the groove 3c. In this case, the wall panel 1A can be lowered from above so that the rib 93a of the third connector 93 in the wall panel 1A aligns with the groove 3c in the wall panel 1B. That is, the wall panel 1B can be used as a pre-installed wall panel that is installed first on the foundation structure, and the wall panel 1A can be used as a post-installed wall panel that is installed after the wall panel 1B. The wall panel 1A can be connected to the wall panel 1B by lowering the wall panel 1A relative to the wall panel 1B while aligning the rib 93a of the wall panel 1A with the groove 3c of the wall panel 1B.

[0043] The floor panel 5 shown in Figures 5 and 6 is a rectangular panel material that forms the floor portion of the building 100. Figure 5 is a perspective view of the floor panel 5 viewed from diagonally above on the left side when viewed from the front. Figure 6 is a perspective view of the floor panel 5 viewed from diagonally above on the right side when viewed from the front.

[0044] As shown in Figures 5 and 6, the floor panel 5 has a beam 6 whose longitudinal direction is aligned horizontally and which is arranged on the side of the floor panel 5, a floor board 50 placed on the upper surface of the beam 6, and a floor beam 63 (see Figure 5) which is a cross member arranged inside the in-plane direction of the floor panel 5.

[0045] As shown in Figures 7 and 8, the floor panels 5 are placed on the wall panels 1. The floor panels 5 can be pre-assembled in a factory, transported to the construction site, and placed and fixed on the wall panels 1 at the construction site, and used to construct the building 100. By using floor panels 5 pre-assembled in a factory, it is possible to reduce on-site work at the construction site of the building 100 (see Figure 1), improve the efficiency of on-site work, and provide a stable, high-quality building 100 without relying on the skill of craftsmen.

[0046] The beams 6 are structural members that form the framework of the building. The beams 6 may include beams 61 arranged on the short sides of the floor panel 5 and beams 62 arranged on the long sides. The cross-sectional area of ​​the beam 61 perpendicular to the longitudinal direction is larger than the cross-sectional area of ​​the stud support 3 perpendicular to the longitudinal direction, and the beam 61 is stronger than the stud support 3. The cross-sectional area of ​​the beam 61 perpendicular to the longitudinal direction is 130% or more, preferably 150% or more, of the cross-sectional area of ​​the stud support 3 perpendicular to the longitudinal direction. By making the cross-sectional area of ​​the beam 61 perpendicular to the longitudinal direction larger than the cross-sectional area of ​​the stud support 3 perpendicular to the longitudinal direction, it is possible to increase the ceiling height in the room when the building 100 (see FIG. 7) is constructed while reducing the height (vertical height) of the wall panel 1. The floor panel 5 has a beam 61 on at least one short side. The floor panel 5 is allowed to have variations such as a floor panel 5A having a beam 62 on at least one long side and a floor panel 5B having no beams 62 on either long side.

[0047] In the floor panel 5A, the floor board 50 is laid in a range slightly inward in the in-plane direction of the floor panel 5A than the beam 62, and the outer edge portion of the beam 62 in the in-plane direction is an exposed edge portion 62a exposed from the floor board 50 when viewed from above.

[0048] 5 and 6 illustrate an example in which a floor panel 5A has beams 61, 61 on the two short sides and beams 62, 62 on the two long sides, and an example in which a floor panel 5B has beams 61, 61 only on the two short sides.

[0049] Also, Figure 5 illustrates an example in which, in a floor panel 5A, the floor board 50 is laid within a range slightly inside the outer edge of the beam 62 in the in-plane direction of the floor panel 5A when viewed from above, and the outer edge portion of the beam 62 in the in-plane direction is an exposed edge portion 62a exposed from the floor board 50 when viewed from above.

[0050] Also, Figure 5 illustrates an example in which, in floor panel 5B, the floor board 50 is laid over an area slightly outside the end face of the beam 61 in the in-plane direction of the floor panel 5A (slightly outside the end face in the extension direction of the beam 61), and the outer edge portion of the floor board 50 in the in-plane direction forms a protruding board portion 50b.

[0051] 6, the floor beams 63 have their ends supported by beams 61. In FIG. 6, both ends of the floor beams 63 are supported by beams 61.

[0052] As shown in Figure 5, the floorboard 50 forms the floor of the room above the room partitioned by the wall panel 1. The floorboard 50 is placed on the upper surfaces of beams 61, 62 and floor beams 63. The floorboard 50 may be a single rectangular plate material or a plurality of rectangular plate materials laid out over an entire surface. The corners of the floorboard 50, which are located at the corners of the floor panel 5A, are cut out to form cutouts 50a.

[0053] In a top view of the floor panel 5, a second connector 92 serving as a hold-down hardware is fixed to the exposed portion of the upper surface of the beam 62 (beam 6) exposed by the cutout portion 50a. By having the second connector 92 on the beam 62, as will be described later, the upper floor wall panel 8 (see FIG. 10) can be connected to the beam 62 via the second connector 92. The second connector 92 may be a hardware similar to the first connector 91.

[0054] As shown in Fig. 7, the floor panels 5 are placed adjacent to each other on the wall panel 1 with their long sides aligned, as shown in Fig. 8. As shown in Fig. 7, each floor panel 5 is arranged so that the long side having the beam 62 is adjacent to the long side not having the beam 62. As an example of an arrangement in which the long side having the beam 62 is adjacent to the long side not having the beam 62 in each floor panel 5, Figs. 7 and 8 show a case in which a floor panel 5B is arranged between two floor panels 5A, 5A.

[0055] 5 and 6, in floor panel 5A, beams 61 and 62 are connected by connectors such as metal fittings. In this embodiment, beams 61 and 62 are connected in a state where the end face of beam 61 faces the inner surface of floor panel 5 in the in-plane direction at the tip of beam 62.

[0056] As shown in FIGS. 5 and 6, the beam 62 may have a fourth connector 94 (so-called metal fittings or fittings) for connecting adjacent floor panels 5. The fourth connector 94 may be provided on the outer surface of the floor panel 5 in the in-plane direction at the tip of the beam 62. As an example, the fourth connector 94 may be a rib-shaped metal fitting extending from the side surface of the beam 62. Through holes may be formed in the rib-shaped portion of the fourth connector 94 so that drift pins can be inserted therethrough. Note that while FIGS. 5 and 6 illustrate a state in which drift pins are inserted into the through holes of the fourth connector 94, in reality, these drift pins are inserted when connecting each component with the fourth connector 94.

[0057] In the floor panel 5B, the beam 61 may have an engaged portion 61x on its end surface that engages with the fourth connector 94 and connects it to the beam 62. One example of an engaged portion that engages with the fourth connector 94 is a slit cut out in the vertical direction on the end surface of the beam 61. In this case, the fourth connector 94 can engage with the engaged portion 61x by fitting its rib-shaped portion into the slit of the engaged portion 61x. The fourth connector 94 can be fixed to the engaged portion 61x by inserting a drift pin from the side of the beam 61 through a through-hole in the rib-shaped portion of the fourth connector 94. A mortise hole through which the drift pin can pass may be formed in advance on the side of the beam 61.

[0058] As described above, as shown in Figures 7 and 8, the floor panel 5 is placed on the wall panel 1 (an example of a placing process). At this time, as shown in Figure 7, the beam 61 of the floor panel 5 is placed on the stud support 3. More specifically, the beam 61 is placed on the upper surface of the stud support 3 in a state that is aligned with the extension direction of the stud support 3. The beam 62 of the floor panel 5 is preferably placed on the end surface of the through column 2 of the wall panel 1. In other words, when viewed from above, the beam 61 overlaps with the stud support 3. Also, when viewed from above, the beam 62 is preferably overlapped with the end surface of the through column 2.

[0059] When placing multiple floor panels 5 on one or more wall panels 1, floor panel 5A is placed on the wall panel 1 first as the pre-installed floor panel, and then floor panel 5B is placed on the wall panel 1 as the post-installed floor panel.

[0060] When placing the floor panels 5A and 5B on the wall panel 1, as shown in Figures 5 and 6, it is advisable to align the slits of the engaged portion 61x of the beam 61 in the floor panel 5B with the rib-shaped portion of the fourth connector 94 of the floor panel 5A so that this rib-shaped portion fits into the slit of the engaged portion 61x. After fitting the rib-shaped portion of the fourth connector 94 into the slit of the engaged portion 61x, as described above, a drift pin is inserted from the side of the beam 61 into the through-hole of the rib-shaped portion of the fourth connector 94. This connects the floor panel 5A to the end of the beam 60 of another adjacent floor panel 5B (an example of a floor panel connecting process).

[0061] As described above, the floor panels 5 are arranged so that the long side of the floor panel 5A having the beam 62 is adjacent to the long side of the floor panel 5B not having the beam 62. In this embodiment, when the floor panels 5A and 5B are placed on the wall panel 1, the protruding plate portion 50b (see FIG. 5) is placed on the exposed edge portion 62a (see FIG. 5). In this way, when the floor panels 5A and 5B are placed on the wall panel 1, the protruding plate portion 50b, which is the edge portion of the floor board 50 on the long side of the floor panel 5B, is placed on the exposed edge portion 62a (see FIG. 6), so that the floor board 50 of the floor panel 5B is supported by the beam 62 of the floor panel 5A, and the strength of the floor panel 5B is ensured.

[0062] The floor panel 5 may be fixed to the wall panel 1 using a first connector 91 (see FIG. 4). That is, the upper end (see FIG. 3) of a tenon pipe 91a, which is inserted into the mortise hole of the stud support 3 and extends upward, is inserted into a mortise hole 61a (see FIG. 6) formed on the underside of the beam 6 of the floor panel 5, and a drift pin 91c is inserted into a through-hole 91b (see FIG. 4) from the side of the beam 6, thereby fixing the beam 6 to the stud support 3 via the first connector 91 (see FIG. 8). By fixing the floor panel 5 to the wall panel 1 by inserting the tenon pipe 91a of the first connector 91 fixed to the stud support 3 into the mortise hole 61a formed on the underside of the beam 6, when connecting the floor panel 5 to the wall panel 1, the floor panel 5 can be aligned with the wall panel 1 simply by inserting the tenon pipe 91a into the mortise hole 61a. This facilitates the work of fixing the floor panel 5 to the wall panel 1.

[0063] As shown in Figure 8, beam 62 of floor panel 5A is a panel separate from the wall panel 1 on which beam 61 is placed, and is placed on a wall panel 1 that is installed perpendicular to the wall panel 1 on which beam 61 is placed. In this case, similar to beam 61, beam 62 may be placed on the top surface of stud support 3 of the other wall panel 1, aligning along the extension direction of the stud support 3.

[0064] As shown in FIG. 5, hanging hardware 59 and hanging reinforcement members 58 may be attached to floor panels 5 during transportation and construction as needed. For example, the hanging reinforcement members 58 may be square timbers with a cross-sectional aspect ratio (the ratio of the vertical width to the horizontal width in a cross section perpendicular to the longitudinal direction of the hanging reinforcement member 58 when attached to the floor panel 5) of approximately 2:1. FIG. 5 illustrates an example in which, for example, four hanging hardware 59 are attached to the beams 62 of floor panel 5A. Also, floor panel 5B is illustrated with hanging reinforcement members 58, 58 attached to the top surfaces of both long sides, aligned along the long sides, and hanging hardware 59 is attached to the hanging reinforcement members 58. Floor panel 5A has beams 61 and 62 on its sides, and floor panel 5A alone has a predetermined strength in the short and long directions. In contrast, floor panel 5B does not have beams 62, and therefore may be weaker than floor panel 5A during transportation or construction. Therefore, during transportation and construction, hanging reinforcement members 58 are provided for floor panel 5B to maintain its strength during transportation and construction. As shown in Figure 8, after floor panel 5 is placed on wall panel 1, hanging reinforcement members 58 and hanging fittings 59 are removed from floor panel 5. As described above, after floor panel 5B is placed on wall panel 1, the floorboards 50 of floor panel 5B are supported by beams 62 of floor panel 5A, so the strength of floor panel 5B is guaranteed even if hanging reinforcement members 58 are removed.

[0065] Figure 9 is a perspective view of the wall panel and floor panel as viewed from inside the room, i.e., a view from inside the room of the state in which the floor panel 5 is placed on the wall panel 1. In Figure 9, the vertical width of the beam 61 is shown as height h1, and the vertical width of the stud support 3 is shown as height h2. If it is desired to increase the maximum height to the ceiling inside the building 100, that is, the height from the upper surface of the floor below the wall panel 1 to the underside of the floorboards 50 of the floor panel 5 placed on the wall panel 1, while lowering the vertical height of the wall panel 1, it is sufficient to increase height h1 and decrease height h2.

[0066] In this embodiment, because beams 61 (beams 6) are arranged on the floor panel 5, there is no need for the stud receivers 3 of the wall panel 1 to function as a framework (beams) supporting the building, and the height h2 of the stud receivers 3 can be reduced. This allows for the realization of a wall panel 1 with a reduced height. It also makes it possible to provide a building 100 that can be constructed using this wall panel 1 with a reduced height. It also makes it possible to provide a construction method for realizing the building 100 by using this wall panel 1.

[0067] As shown in FIG. 10 , an upper floor wall panel 8 may be placed on a floor panel 5 placed on a wall panel 1. The upper floor wall panel 8 constitutes the upper floor wall of a room partitioned by the wall panel 1 and the floor panel 5. The upper floor wall panel 8 may have the same configuration as the wall panel 1. The following describes an example in which the upper floor wall panel 8 has the same configuration as the wall panel 1. When placing the upper floor wall panel 8 on the floor panel 5, the upper floor wall panel 8 can be connected and fixed to the beam 62 of the floor panel 5 with a second connector 92. The second connector 92 is preferably fixed to the through column 2 of the upper floor wall panel 8. In this way, by directly fixing the second connector 92 to the beam 62 of the floor panel 5 and the through column 2 of the upper floor wall panel 8 and connecting the upper floor wall panel 8 to the floor panel 5, a direct connection structure between the beam and the column can be realized, which allows the height of the wall panel 1 to be reduced while maintaining the necessary strength of the building 100. If the second connector 92 is a metal fitting similar to the first connector 91 (see Figure 3), the upper floor wall panel 8 can be aligned with the floor panel 5 simply by inserting the tenon pipe of the second connector 92 into a mortise hole formed on the underside of the upper floor wall panel 8. This makes it easier to fix the upper floor wall panel 8 to the floor panel 5.

[0068] In this way, it is possible to provide a building that can be constructed using wall panels with reduced height, and a construction method for achieving this.

[0069] [Another embodiment] (1) In the above embodiment, the frame members of the vertical side portions of the wall frame 10 of the wall panel 1 are the through pillar 2 and the end vertical member 25, and an example has been described in which the wall panel 1 has one through pillar 2. However, the wall frame 10 of the wall panel 1 may be constructed using another through pillar 2 instead of the end vertical member 25. It can also be done as follows.

[0070] (2) In the above embodiment, it was explained that the floor panel 5 is allowed to have variations such as a floor panel 5A having a beam 62 on at least one long side and a floor panel 5B having no beams 62 on both long sides, and an example was given in which the floor panel 5A has beams 61, 61 on the two short sides and beams 62, 62 on the two long sides, and an example was given in which the floor panel 5B has beams 61, 61 only on the two short sides. In addition to these floor panels 5A and 5B, the floor panel 5 can also have beams 61, 61 on the two short sides, a beam 62 on one long side, and no beam 62 on the other long side.

[0071] The configurations disclosed in the above embodiments (including other embodiments, the same applies below) can be applied in combination with configurations disclosed in other embodiments, as long as no contradiction arises. Furthermore, the embodiments disclosed in this specification are examples, and the embodiments of the present invention are not limited to these, and can be modified as appropriate within the scope that does not deviate from the purpose of the present invention. [Industrial Applicability]

[0072] The present invention can be applied to buildings and construction methods thereof. [Explanation of symbols]

[0073] 1 wall panel 10 wall frame 100 buildings 11 Filler insulation 12 Structural surface materials 13. Fringe support 14. Insulation 15 Sash 16 Ventilated furring strip 1A Wall Panel 1B Wall Panel 2 pillars 21 Studs 22 Tube pillar 25 End longitudinal member 26 Lower frame material 27 Window Magusa 28 Window sill 2a Upper end 3 Stud support 33 Third connector 3c groove 5 Floor Panels 50 Floorboards 50a Notch 50b Protruding plate part 58 Hanging reinforcement 59 Metal fittings 5A Floor Panel 5B Floor Panel 6 beams 60 beam 61 Beam 61a Mortise 61x Engagement part 62 Beam 62a Exposed edge 63 Floor beam 8 Upper floor wall panels 91 First connector 91a Tenon Pipe 91b Through hole 91c Drift Pin 92 Second connector 93 Third connector 93a Rib 94 Fourth connector h1 height h2 height

Claims

1. Wall panels and a floor panel placed on the wall panel; The wall panel comprises: a first through column whose longitudinal direction is along the vertical direction; a first stud support whose longitudinal direction is along the horizontal direction; The floor panel is It is formed in a rectangular shape, A beam whose longitudinal direction is along the horizontal direction; a floor plate placed on the upper surface of the beam, The first stud support is The end surface is connected to the side surface of the upper end of the first pillar in the longitudinal direction, a first connector that connects the beams; the first connector has a first tenon pipe fixed to an upper surface portion of the first stud support, The beam is a first mortise on the lower surface thereof for connection to the wall panel; The first stud support is placed on the upper surface of the first stud support in a state aligned with the longitudinal direction of the first stud support, The building in which the first tenon pipe is fitted into the first mortise hole, the beam is connected to the first stud support, and the floor panel is fixed to the wall panel.

2. Further provided is an upper floor wall panel placed on an upper surface of the floor panel, 2. The building according to claim 1, wherein the floor panels have second connectors connecting the upper floor wall panels.

3. The upper floor wall panel is a second through column whose longitudinal direction is along the vertical direction; a second stud support whose longitudinal direction is along the horizontal direction; The second through post has a second mortise hole on a lower surface thereof for connection to the floor panel, the second connector has a second tenon pipe fixed to the upper surface of the beam, 3. The building according to claim 2, wherein the second tenon pipe is fitted into the second mortise hole, the second through column is connected to the beam, and the upper floor wall panel is fixed to the floor panel.

4. A notch is formed in a corner of the floor panel, the corner being located at a corner of the floor panel, The building according to claim 3, wherein, in a top view of the floor panel, the second tenon pipe is fixed to an exposed portion of the upper surface of the beam exposed by the cutout portion.

5. The floor panel is The beam is provided on the short side thereof, The building according to any one of claims 1 to 4, wherein adjacent floor panels and ends of the beams are connected to each other.

6. The floor panel includes: a first floor panel having a long side with the beam; a second floor panel adjacent to the first floor panel and having a long side without the beam; Including, The building according to any one of claims 1 to 4, wherein the second floor panel is arranged with its long side not having the beam adjacent to the beam on the long side of the first floor panel.

7. The floor boards of the first floor panel are laid within a range inside the outer edge of the beam on the long side having the beam in the in-plane direction of the first floor panel when viewed from above, and the outer edge portion of the beam in the in-plane direction is an exposed edge portion exposed from the floor board when viewed from above, and the edge portion of the floor board on the long side portion of the second floor panel that does not have the beam is placed on the exposed edge portion. The building described in claim 6.

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