JP7759206B2 - Buildings and their construction methods - Google Patents

Description

The present invention relates to buildings and construction methods.

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 pieces of wood, such as pillars and pillars, pillars and beams, and wood panels. The wood panel construction method involves fabricating the wood panels that will form the walls of a building in advance at a factory or elsewhere, and then connecting the panels together at the construction site to construct the building's walls. The wood panels are made up of pillars, 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 space surrounded by the horizontal members, end vertical members, and central vertical member is filled with insulation, and the panels are then fabricated in a factory by laminating plywood over the horizontal members, end vertical members, central vertical member, and insulation.

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 at a distance from the base, and a beam spanning the upper part of the pair of columns between them. This shear wall can be constructed by manufacturing the shear wall constituent panels in a factory and attaching them to the base.

Japanese Patent Application Laid-Open No. 2019-002264 Japanese Patent Application Laid-Open No. 2019-214878

Wall panels such as wood panels and shear walls, as described in Patent Documents 1 and 2, can be prefabricated in factories, transported to the construction site, and used directly in wall construction, thereby reducing on-site labor hours. However, as described above, conventional wall panels include beams as well as columns. Therefore, if the interior space of a building is designed to be at a specified height or higher, the height of the wall panels cannot be set below 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 of the wall panels as cargo does not violate legal regulations (e.g., loading height restrictions) by ensuring that they do not exceed the specified loading dimensions. Therefore, there is a demand for buildings that can be constructed using wall panels with reduced height, as well as a construction method for achieving this.

The present invention was made in light of these circumstances, and its purpose is to provide a building that can be constructed using wall panels with reduced height, as well as a construction method for achieving this.

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.

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

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.

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.

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.

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.

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.

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.

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.

We can provide buildings that can be constructed using wall panels with reduced height, as well as a construction method to achieve this.

FIG. 2 is an exploded perspective view of the wall panel and floor panel as seen from the indoor side. FIG. FIG. 1 is an enlarged view of a stud receiving portion of a wall panel and a connecting portion with another wall panel. FIG. 10 is a diagram showing the configuration of a connector. FIG. 2 is a perspective view of the floor panel seen from diagonally above the side. FIG. 1 is a perspective view of a floor panel seen from below at an angle to the side. 10A and 10B are diagrams illustrating how a floor panel is placed on a wall panel. FIG. 10 is a perspective view of a state in which a floor panel is placed on a wall panel. FIG. 2 is a perspective view of the wall panel and floor panel as seen from the indoor side. FIG. 10 is a diagram illustrating how an upper floor wall panel is placed on a floor panel.

Based on the drawings, we will explain the building and construction method according to an embodiment of the present invention.

(Summary)
As shown in Figure 1, a building 100 according to this embodiment has a building structure including wall panels 1 that partition an interior space within the building 100, and floor panels 5 that are placed on the wall panels 1. Note that Figure 1 is an exploded perspective view of the wall panels 1 and the floor panels 5, as viewed from the interior side of the room. Figure 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.

The wall panel 1 has a through post 2 whose longitudinal direction is vertical and a stud support 3 whose longitudinal direction is horizontal.

The floor panel 5 has a beam 6 whose longitudinal direction is horizontal and a floorboard 50 placed on the top surface of the beam 6.

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

The beam 6 is placed on the top surface of the stud support 3, aligned in the extension direction of the stud support 3.

The building 100 is constructed using a construction method that includes a placement process in which floor panels 5 are placed on wall panels 1. In this placement process, the beams 6 are placed on the top surfaces of the stud supports 3, aligning them in the extension direction of the stud supports 3.

Detailed Description
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.

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 the construction site and used to construct the building 100. By using wall panels 1 pre-assembled in a factory, on-site work at the construction site of the building 100 can be reduced and on-site work can be made more efficient. It also makes it possible to provide a stable, high-quality building 100 without relying on the skill of craftsmen.

As shown in Figure 2, the wall panel 1 may include a wall frame 10, filler insulation 11, structural facing 12, furring strip support 13, exterior insulation 14, sash 15, and ventilated furring strips 16. Figure 2 is an exploded perspective view of the wall panel 1. The filler insulation 11 is placed within the wall frame 10. The structural facing 12, furring strip support 13, exterior insulation 14, and ventilated furring strips 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 strips 16.

The wall frame 10 is a rectangular frame that forms the skeleton 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, for example, by joining the frame members using metal connectors (so-called metal fittings or hardware). As shown in Figure 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.

The lower frame member 26 is a frame member for the horizontal piece of the rectangular wall frame 10 on the opposite side from the stud support 3. The lower frame member 26 is arranged parallel to the stud support 3.

The studs 21 are pillars that run vertically between the stud support 3 and the lower frame member 26. The studs 21 support the insulating filler 11, structural surface material 12, furring strip support 13, etc.

The upper end of the tubular column 22 is connected to the underside of the stud support 3, and is a column material that supports the load from the stud support 3 with a foundation structure located below the wall panel 1.

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.

The window pillars 27 and window sill 28 are pillars that form the framework for supporting the sash 15. The window pillars 27 support the upper side of the sash 15, and the window sill 28 supports the lower side of the sash 15.

As described above, the through columns 2 are frame materials whose longitudinal direction is aligned vertically, and form the frame material of the vertical sides of the wall frame 10. For example, the through columns 2 are square timbers with a rectangular cross section perpendicular to the longitudinal direction. The through columns 2 have a larger cross-sectional area perpendicular to the longitudinal direction than the pipe columns 22 or partition studs 21, and are sturdy (strong) frame materials. The through columns 2 are structural members 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.

The through column 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.

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 stud support 3 fit together such that the end surface of the upper end 2a of the through post 2 is flush with the top surface of the stud support 3.

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.

As shown in Figure 3, the longitudinal ends of the stud support 3 may have slit-shaped grooves 3c cut downward from the top surface. The grooves 3c may open on the top and side surfaces 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; Figure 3 shows two adjacent grooves 3c.

The first connector 91 is a metal connector (commonly known as a metal fitting or hardware) for connecting the beam 6 (described later) to the stud support 3. As shown in FIG. 4, the first connector 91 is, for example, a hardware piece including a tenon pipe 91a, which is a rod-shaped main body with through holes 91b, 91b at both ends, and rod-shaped drift pins 91c, 91c. The first connector 91 is inserted from the side of the stud support 3, with one end of the tenon pipe 91a fitted into a mortise hole formed on the top surface of the stud support 3, and is connected and fixed to the stud support 3 by the drift pin 91c inserted through the through hole 91b (see FIG. 3). The other end of the tenon pipe 91a inserted into the mortise hole of the stud support 3 is exposed and extends upward. The other end of the tenon pipe 91a is fitted into a mortise hole 61a (see Figure 6) in the beam 6, which will be described later, and is connected and fixed to the beam 6 by a drift pin 91c, similar to the connection to the stud support 3 (see Figures 8 and 10). This allows the first connector 91 to connect the beam 6 to the stud support 3.

As shown in Figure 3, the third connector 93 is a metal connector (commonly known as a metal fitting or fixture) 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 Figure 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 Figure 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.

As shown in FIG. 3 , the third connector 93 extends vertically from the side of the through-post 2 toward the outside of the through-post 2 and has a planar rib 93a that runs 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 that penetrates 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 achieved, for example, by first inserting a drift pin into the stud support 3 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 through the through-hole that penetrates the plate surface of the rib 93a.

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 rib 93a of the third connector 93 on the wall panel 1A can be aligned with the groove 3c on the wall panel 1B, and the wall panel 1A can be lowered downward to insert the rib 93a into the groove 3c from above. In other words, 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.

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, looking down diagonally from above on the left side when viewed from the front. Figure 6 is a perspective view of the floor panel 5, looking up diagonally from above on the right side when viewed from the front.

As shown in Figures 5 and 6, the floor panel 5 has a longitudinal direction aligned horizontally and comprises beams 6 arranged on the sides of the floor panel 5, floor plates 50 placed on the upper surfaces of the beams 6, and floor beams 63 (see Figure 5) which are horizontal members arranged on the inner side of the in-plane direction of the floor panel 5.

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 in their assembled state to the construction site, and then placed and secured on the wall panels 1 at the construction site, for use in constructing the building 100. Using floor panels 5 pre-assembled in a factory reduces on-site work at the construction site of the building 100 (see Figure 1), making on-site work more efficient and enabling the provision of a consistently high-quality building 100 without relying on the skill of artisans.

Beams 6 are structural members that form the framework of a building. Beams 6 may include beams 61 arranged on the short sides of floor panels 5 and beams 62 arranged on the long sides. The cross-sectional area of beam 61 perpendicular to its longitudinal direction is larger than the cross-sectional area of stud support 3 perpendicular to its longitudinal direction, making beam 61 stronger than stud support 3. The cross-sectional area of beam 61 perpendicular to its longitudinal direction is 130% or more, and preferably 150% or more, of the cross-sectional area of stud support 3 perpendicular to its longitudinal direction. By making the cross-sectional area of beam 61 perpendicular to its longitudinal direction larger than the cross-sectional area of stud support 3 perpendicular to its longitudinal direction, the ceiling height of the interior of building 100 (see Figure 7) can be increased while the height (vertical height) of wall panels 1 can be reduced. Floor panels 5 each have a beam 61 on at least one short side. The floor panel 5 is allowed to be modified in various ways, such as a floor panel 5A that has a beam 62 on at least one long side, or a floor panel 5B that does not have a beam 62 on either long side.

In the floor panel 5A, the floorboards 50 are laid in an area slightly inward in the in-plane direction of the floor panel 5A relative to the beams 62, and the outer edge portions of the beams 62 in the in-plane direction form exposed edges 62a that are exposed from the floorboards 50 when viewed from above.

Figures 5 and 6 illustrate an example where floor panel 5A has beams 61, 61 on the two short sides and beams 62, 62 on the two long sides. Also, an example where floor panel 5B has beams 61, 61 on only the two short sides is shown.

In addition, Figure 5 illustrates a case in which, in a floor panel 5A, the floorboards 50 are laid within a range slightly inside the outer edges of the beams 62 in the in-plane direction of the floor panel 5A when viewed from above, and the outer edge portions of the beams 62 in the in-plane direction form exposed edge portions 62a that are exposed from the floorboards 50 when viewed from above.

In addition, Figure 5 illustrates an example in which, in floor panel 5B, the floorboards 50 are laid over an area slightly outside the end face of the beam 61 in the in-plane direction of floor panel 5A (slightly outside the end face in the extension direction of the beam 61), and the outer edge portion of the floorboards 50 in the in-plane direction forms a protruding plate portion 50b.

As shown in Figure 6, the floor beams 63 are supported at their ends by beams 61. In Figure 6, both ends of the floor beams 63 are supported by beams 61.

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 rests on the upper surfaces of the beams 61, 62 and floor beams 63. The floorboard 50 may be a single rectangular plate or multiple rectangular plates laid out over an entire surface. The corners of the floorboard 50 that are located at the corners of the floor panel 5A are cut out to form cutouts 50a.

When viewed from above, the floor panel 5 has a second connector 92, which serves as a hold-down hardware, fixed to the exposed portion of the upper surface of the beam 62 (beam 6) exposed by the cutout 50a. By having the second connector 92 on the beam 62, the upper-floor wall panel 8 (see Figure 10) can be connected to the beam 62 via the second connector 92, as described below. The second connector 92 may be a hardware similar to the first connector 91.

As shown in Figure 7, each floor panel 5 is placed adjacent to the wall panel 1 with its long sides aligned, as shown in Figure 8. As shown in Figure 7, each floor panel 5 is arranged so that the long side having a beam 62 is adjacent to the long side not having a beam 62. As an example of an arrangement in which each floor panel 5 is arranged so that the long side having a beam 62 is adjacent to the long side not having a beam 62, Figures 7 and 8 show a case in which a floor panel 5B is arranged between two floor panels 5A, 5A.

As shown in Figures 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 with the end face of beam 61 facing the inner surface of the floor panel 5 in the in-plane direction at the tip of beam 62.

As shown in Figures 5 and 6, the beam 62 may have a fourth connector 94 (so-called metal fittings or hardware) for connecting adjacent floor panels 5. The fourth connector 94 may be provided on the outer in-plane surface of the floor panel 5 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 of the beam 62. Through holes may be formed in the rib-shaped portion of the fourth connector 94 to allow drift pins to be inserted therethrough. Note that Figures 5 and 6 illustrate the state in which drift pins are inserted into each through hole of the fourth connector 94, but in reality, these drift pins are inserted when connecting each component with the fourth connector 94.

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, achieving connection to the beam 62. One example of an engaged portion that engages with the fourth connector 94 is a slit cut vertically into 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 in the side of the beam 61.

As described above, as shown in Figures 7 and 8, the floor panel 5 is placed on the wall panel 1 (an example of the placement 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, aligning 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 the stud support 3. Furthermore, when viewed from above, the beam 62 should overlap the end surface of the through column 2.

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.

When placing floor panels 5A and 5B on the wall panel 1, as shown in Figures 5 and 6, the slits in the engaged portions 61x of the beams 61 on floor panel 5B should be aligned with the rib-shaped portions of the fourth connector 94 on floor panel 5A so that these rib-shaped portions fit into the slits in the engaged portions 61x. After fitting the rib-shaped portions of the fourth connector 94 into the slits in the engaged portions 61x, as described above, a drift pin is inserted from the side of the beam 61 through the through-hole in the rib-shaped portion of the fourth connector 94. This connects floor panel 5A to the end of the beam 60 of another adjacent floor panel 5B (an example of the floor panel connecting process).

As described above, the floor panels 5 are arranged so that the long side of floor panel 5A having the beams 62 is adjacent to the long side of floor panel 5B not having the beams 62. In this embodiment, when placing floor panels 5A and 5B 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 placing floor panels 5A and 5B 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 floor panel 5B, is placed on the exposed edge portion 62a (see FIG. 6). This allows the floor board 50 of floor panel 5B to be supported by the beams 62 of floor panel 5A, ensuring the strength of floor panel 5B.

The floor panel 5 may be secured to the wall panel 1 using a first connector 91 (see Figure 4). Specifically, the upper end (see Figure 3) of the tenon pipe 91a, which is inserted into the mortise hole in the stud support 3 and extends upward, is inserted into the mortise hole 61a (see Figure 6) formed on the underside of the beam 6 of the floor panel 5, and a drift pin 91c is inserted from the side of the beam 6 through the through-hole 91b (see Figure 4), thereby securing the beam 6 to the stud support 3 via the first connector 91 (see Figure 8). By securing the floor panel 5 to the wall panel 1 by inserting the tenon pipe 91a of the first connector 91 secured to the stud support 3 into the mortise hole 61a formed on the underside of the beam 6, 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 process of securing the floor panel 5 to the wall panel 1.

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

As shown in Figure 5, hanging hardware 59 and hanging reinforcement 58 may be attached to floor panels 5 during transportation and construction as needed. For example, hanging reinforcement 58 may be made of a square timber 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 hanging reinforcement 58 when attached to floor panel 5) of approximately 2:1. Figure 5 illustrates an example in which, for example, four hanging hardware 59 are attached to beam 62 of floor panel 5A. Also, floor panel 5B is illustrated with hanging reinforcement 58, 58 attached to the top surface of both long sides, aligned along those long sides, and hanging hardware 59 is attached to hanging reinforcement 58. Floor panel 5A has beams 61 and 62 on its sides, providing floor panel 5A with a predetermined strength in both the short and long directions. In contrast, floor panel 5B does not have beam 62, and therefore may be weaker than floor panel 5A during transportation or construction. Therefore, during transportation and installation, hanging reinforcement members 58 are attached to floor panel 5B to maintain its strength during transportation and installation. As shown in Figure 8, after floor panel 5 is placed on wall panel 1, hanging reinforcement members 58 and hanging hardware 59 are removed from floor panel 5. As mentioned 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.

Figure 9 is a perspective view of the wall panel and floor panel as seen from inside the room, i.e., a view from inside the room of the floor panel 5 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 you want to increase the maximum height to the ceiling inside the building 100, i.e., the height from the top 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, you can simply increase height h1 and decrease height h2.

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

As shown in FIG. 10 , an upper floor wall panel 8 may be placed on the floor panel 5 placed on the wall panel 1. The upper floor wall panel 8 constitutes the upper floor wall of the 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 column-beam connection structure can be realized, allowing the height of the wall panel 1 to be lowered 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 secure the upper floor wall panel 8 to the floor panel 5.

In this way, we can provide a building that can be constructed using wall panels with reduced height, as well as a construction method to achieve this.

[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.

(2) In the above embodiment, it was explained that variations in the floor panel 5 are permitted, 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. Examples were given of a floor panel 5A having beams 61, 61 on two short sides and beams 62, 62 on two long sides, and a floor panel 5B having beams 61, 61 on only two short sides. In addition to floor panels 5A and 5B, the floor panel 5 can also have beams 61, 61 on two short sides, a beam 62 on one long side, and no beam 62 on the other long side.

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, provided that no contradictions arise. Furthermore, the embodiments disclosed in this specification are merely examples, and the present invention is not limited to these embodiments. They can be modified as appropriate within the scope of the purpose of the present invention.

The present invention can be applied to buildings and their construction methods.

1 Wall panel 10 Wall frame 100 Building 11 Filling insulation material 12 Structural surface material 13 Furring strip support 14 Insulation material 15 Sash 16 Ventilated furring strip 1A Wall panel 1B Wall panel 2 Through column 21 Intermediate column 22 Pipe column 25 End side vertical member 26 Lower frame material 27 Window stud 28 Window sill 2a Upper end portion 3 Intermediate column support 33 Third connector 3c Groove 5 Floor panel 50 Floor board 50a Cutout portion 50b Protruding plate portion 58 Hanging reinforcement material 59 Metal fittings 5A Floor panel 5B Floor panel 6 Beam 60 Beam 61 Beam 61a Mortise hole 61x Engagement portion 62 Beam 62a Exposed edge portion 63 Floor beam 8 Upper floor wall panel 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 (7)

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. 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. 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. 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. 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. 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. The building described in claim 6, wherein the floorboards of the first floor panel are laid within a range inside the outer edge of the beam on the long side of the first floor panel that has the beam in the in-plane direction, and the outer edge of the beam in the in-plane direction is an exposed edge portion exposed from the floorboards in the top view, and the edge portion of the floorboard on the long side of the second floor panel that does not have the beam is placed on the exposed edge portion.