Wooden buildings and methods for relocating wooden buildings

Abstract

To provide a wooden building that can be lifted without deforming or damaging its framework. [Solution] The wooden building 1 comprises a frame-shaped wooden base 11, a plurality of wooden columns 12 erected on the base 11, a frame-shaped wooden beam section 13 arranged to span between the plurality of columns 12 at the upper ends of the columns 12, a plurality of lower support sections 20 that abut the lower surface of the base 11, and a plurality of long rod-shaped lifting sections 30, each with its lower end fixed to the lower support section 20 and penetrating the base 11 and the beam section 13 vertically.

Description

Technical Field

[0005] , , , ,

[0001] The present invention relates to a wooden building and a method for relocating the wooden building.

Background Art

[0002] Conventionally, buildings prefabricated in a factory are transported to a site and installed. Examples of such buildings include a container house having a rectangular parallelepiped steel frame disclosed in Patent Document 1 and a unit house having a steel frame disclosed in Patent Document 2. By manufacturing a building in a factory in advance, the construction period at the site can be shortened.

[0003] On the other hand, the present applicant has considered making a building prefabricated in a factory a wooden building in order to effectively utilize wood resources. A wooden building means that a foundation, columns, and beams constituting a framework are made of wood. However, a conventional wooden building does not have sufficient strength to be lifted. Therefore, when a wooden building is lifted by a crane to be placed on a loading platform of a transport vehicle such as a truck, there is a risk of deforming and damaging the framework.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] Therefore, in view of the above circumstances, an object of the present invention is to provide a wooden building that can be lifted without deforming and damaging a framework, and a method for relocating the wooden building.

Means for Solving the Problems

[0006] To solve the above problems, the wooden building according to the present invention is "A wooden base that is frame-shaped, Multiple wooden pillars erected on the base, A wooden beam section is frame-shaped and is positioned to span between multiple columns at the upper end of the column, Multiple lower support parts that are in contact with the lower surface of the base, Multiple lifting sections, each in the shape of a long rod, with their lower ends fixed to the lower support section and penetrating vertically through the base and the beam section. It is "equipped with."

[0007] The term "up and down" above refers to the up and down position of a wooden structure when it is placed on the ground. In this wooden structure, the framework, consisting of the base, columns, and beams, is made of wood. A lower support is placed on the underside of the base, in contact with the base. The lower end of a long, rod-shaped lifting section is fixed to this lower support. The lifting section penetrates the base and beams vertically. As a result, by connecting the portion of the lifting section that protrudes above the beams directly to the crane's wire, or via some other component, the wooden structure can be lifted by a crane. In this case, even though the crane's wire is connected to the top of the wooden structure for lifting, the structure is lifted from below the base. Therefore, with this configuration, the structure can be lifted without deforming or damaging the framework.

[0008] Furthermore, in this configuration, the lifting force is applied to the base via the lifting section, lifting the base from below. This allows for the lifting and movement of wooden buildings even after their interior and exterior finishes have been completed. For example, a wooden building can be lifted and moved after its interior and exterior finishes have been completed in a factory. It can also be moved again even after the building has been installed at its location and its interior and exterior finishes have been completed.

[0009] Furthermore, in this configuration, since the lifting section penetrates the base and beam vertically, the lifting section is positioned between the interior wall and the exterior wall, similar to the column. Therefore, the lifting section becomes invisible from the outside when the exterior wall is installed, and can also be made invisible from the outside when the interior wall is finished.

[0010] Furthermore, because the framework of this structure is made of wood, it is lighter than conventional buildings with steel frameworks, making transportation and lifting operations easier during relocation. Regarding transportation, it becomes possible to transport wooden buildings using smaller transport vehicles with lower load capacity limits. Regarding lifting operations, there is more leeway in the lifting load limits of cranes, allowing for safer operations.

[0011] For example, the lower support portion can be made of a metal member. The lower support portion may also be flat or block-shaped with a greater thickness than a flat plate. When the lower support portion is shaped such that the length in the direction perpendicular to the thickness direction is greater than the thickness, by arranging it so that the thickness direction coincides with the vertical direction, the lower surface of the lower support portion can support the bottom surface of the base with its wide surface.

[0012] For example, the lifting section may be a single rod-shaped member, or it may be composed of multiple rod-shaped members connected to each other. The rod-shaped members may be solid or hollow. When the lifting section is composed of multiple rod-shaped members, two connected rod-shaped members may be connected by forming male threads on both and using nuts, or by screwing a male thread formed on one into a female thread formed on the other, or by fitting the ends together and securing them detachably with, for example, a pin. The method of fixing the lower end of the lifting section to the lower support section may be by screw fastening, or by fixing with a pin or retaining ring.

[0013] In addition to the above configuration, the wooden building according to the present invention, The lifting section can be made to be divided into multiple parts.

[0014] With this configuration, when installing the lifting section, the divided parts can be attached one by one, making it easier to install the lifting section so that it penetrates the base and beam vertically compared to a lifting section consisting of a single long rod-shaped member. Furthermore, if the lifting section needs to be replaced after lifting, it is possible to replace only the divided parts rather than replacing the entire lifting section. In addition, after the wooden building is installed at the installation site, a part of the lifting section, for example, the part that is entirely located in the interior space, can be removed.

[0015] In addition to the above configuration, the wooden building according to the present invention, The system may further be equipped with a lifting attachment that is attached to the upper end of the lifting portion which protrudes upward from the beam portion, and which integrally fixes the upper end and the beam portion.

[0016] In this configuration, by connecting the upper end of the lifting section to the crane's wire via a lifting attachment, a wooden building can be lifted by a crane. Furthermore, even if there is a clearance between the lifting section, which is inserted through a through-hole formed in the beam, and the through-hole, the upper end is integrally fixed by the lifting attachment so that it does not move relative to the beam. This prevents the wooden building from swaying when lifted, which would otherwise be caused by the lifting section moving relative to the through-hole by the amount of the clearance. Here, "integrally fixed" means that the upper end is fixed so that it does not move relative to the beam, and this includes not only cases where the upper end and the beam are directly fixed, but also cases where they are indirectly fixed via other members.

[0017] In addition to the above configuration, the wooden building according to the present invention, "A wooden ground-side base positioned below the aforementioned base, A joining member that connects the aforementioned base and the aforementioned ground-side base. It can be made to "further possess the following characteristics."

[0018] In this configuration, after placing the ground-side base on the installation site, the wooden building (excluding the ground-side base) is lifted and placed on the ground-side base, and the base and the ground-side base are joined by joining members, thereby completing the installation of the wooden building. Therefore, the installation work of the wooden building is easy. Thus, providing a wooden ground-side base separately from the base of the wooden building itself is a novel idea that has not been done conventionally.

[0019] Also, when providing a base and a ground-side base as in this configuration, compared to the case of providing only a base, the under-floor space can be widened by the height of the ground-side base. Therefore, it becomes a configuration in which it is easy to store piping and the like around water under the floor.

[0020] The wooden building according to the present invention, in addition to the above configuration, "The lower receiving portion includes an upper surface plate, a bottom plate facing the upper surface plate, and a lower surface member having two leg portions connecting the bottom plate and the upper surface plate, an inner insertion hole fixed to the base by the lower end of the lifting portion is formed in the upper surface plate, and a mounting insertion hole for connecting an accessory member is formed in the lower surface member" can be adopted. <0000^092><00^00093> In this configuration, by making the lower receiving portion a cubic structure with height, the base is not damaged when the wooden building is temporarily placed. Further, by providing a mounting insertion hole in the lower surface member of the lower receiving portion, various accessory members can be attached. For example, a caster member can be attached as an accessory member. Thereby, it is possible to move the wooden building manually at an event venue or the like. Also, an extension portion fixed to the foundation can be attached as an accessory member. Thereby, the wooden building can be fixed to the foundation with substantially the same strength as in the case where there is an extension portion. Thus, by providing a mounting insertion hole in the lower surface member of the lower receiving portion into which various accessory members can be attached, the convenience in moving and installing the wooden building can be significantly enhanced.

[0022] Next, the method for relocating the wooden building according to the present invention is The method for relocating wooden buildings described above, A lifting attachment is detachably attached to the upper end of the lifting portion that protrudes upward from the beam portion, thereby integrally fixing the upper end and the beam portion. The wooden structure is lifted via the aforementioned lifting attachment and placed onto a transport vehicle. Transporting the aforementioned wooden building to the installation site using the aforementioned transport vehicle, The wooden structure is lifted via the aforementioned lifting attachment and installed at the aforementioned location. The aforementioned suspension attachment is removed from the upper end, The upper end portion is covered with the exterior of the wooden building so that it is not visible from the outside. It includes "

[0023] In this configuration, a lifting attachment is detachably mounted to the upper end, and once installation at the installation site is complete, the lifting attachment is removed from the upper end. By making the lifting attachment detachable in this way, the part of the configuration used for lifting that protrudes above the beam can be limited to only the upper end of the lifting section. Therefore, the upper end can be easily covered with an exterior, such as a roof, so that it is not visible from the outside.

[0024] Next, the method for relocating a wooden building according to the present invention is as follows: "A method for relocating wooden buildings, Including the wooden structure on the first floor and the wooden structure on the second floor, A reinforcing member is embedded in the ground at the location on the first floor side of the wooden building, outside the aforementioned installation site. The aforementioned wooden building on the first floor is installed at the aforementioned installation location. The aforementioned second-floor wooden structure is installed on top of the aforementioned first-floor wooden structure which is installed at the aforementioned installation location. The reinforcing member is fixed to the column of the wooden building on the first floor using reinforcing hold-down hardware. This further includes "

[0025] This configuration allows for the relocation of two-story wooden buildings, which were previously difficult to relocate due to load weight limitations on transport vehicles and seismic standards for wooden buildings. By pre-embedding reinforcing members in a position on the outside of the first-floor wooden building on the concrete foundation and fixing them using reinforcing hold-down hardware, construction can be carried out without problems in accordance with seismic standards. While hold-down hardware itself has been known for some time, this novel method involves pre-embedding reinforcing members in a position on the outside of the first-floor wooden building on the ground floor and fixing these reinforcing members to the columns of the first-floor wooden building from the outside using hold-down hardware. This has enabled the relocation of two-story wooden buildings while still meeting seismic standards. This relocation method significantly reduces the construction time at the installation site, even for two-story wooden buildings that typically require a long construction period, thereby suppressing construction costs. [Effects of the Invention]

[0026] As described above, the present invention provides a wooden building that can be lifted without deforming or damaging the framework, and a method for relocating the wooden building. [Brief explanation of the drawing]

[0027] [Figure 1] This is a cross-sectional view of a wooden building, which is a first embodiment of the present invention, and shows the wooden building in the process of being relocated. [Figure 2] (a) is an enlarged cross-sectional view of area A in Figure 1, (b) is an enlarged cross-sectional view of area B in Figure 1, and (c) is an enlarged cross-sectional view of area C in Figure 1. [Figure 3] (a) A side view of the lifting attachment on the high side of Figure 1; (b) A side view of the lifting attachment on the low side of Figure 1; (c) An exploded perspective view of the lifting attachment on the low side of Figure 1. [Figure 4] This is a perspective view showing the suspension frame attached to the suspension attachment on the lower side of Figure 1. [Figure 5](a) A side view of the wooden building in the state shown in Figure 4 (however, the exterior walls and roof etc. are omitted from the illustration), and (b) A plan view of the suspension frame and wire shown in Figure 5(a). [Figure 6] Figure 1 shows the state after the suspension attachment has been removed and the cover has been attached (the completed state of installation on a wooden building). (a) is a diagram corresponding to Figure 2(a), and is an enlarged cross-sectional view showing the higher side of the roof. (b) is a diagram corresponding to Figure 2(b), and is an enlarged cross-sectional view showing the lower side of the roof. [Figure 7] (a) A cross-sectional view showing the installation of the hangers and caps on the metal roof section; (b) A cross-sectional view showing the removal of the suspension attachment; (c) A cross-sectional view showing the state with the cover installed. [Figure 8] (a) A partial front view showing a ground-side sill and concrete foundation of a wooden building according to a second embodiment of the present invention; (b) A partial front view showing the state in which the sill is being installed on the ground-side sill; (c) A partial front view showing the state in which the sill and the ground-side sill are fixed together; (d) A diagram corresponding to Figure 2(c), which is a partial cross-sectional view showing the lower part of the wooden building including the lifting section and the lower support section. [Figure 9] (a) A perspective view of a lower support portion which is a third embodiment of the present invention, and (b) A partial front view showing the base and the lower support portion fixed together. [Figure 10] (a) A perspective view showing the state in which a mounting caster member, which is a modified example of the third embodiment of the present invention, is being attached to the lower support, and (b) A partial front view showing the state in which the mounting caster member has been fixed to the lower support which is fixed to the base. [Figure 11] (a) A perspective view showing the state in which an attachment extension member, which is a modified example of the third embodiment of the present invention, is being attached to the lower support, and (b) A partial front view showing the state in which the attachment extension member is attached to the lower support fixed to the base, and the attachment extension member is fixed to the foundation. [Figure 12](a) A partial front view showing the state in which the first-floor wooden building and the second-floor wooden building are being installed on the ground-side foundation, which is the fourth embodiment of the present invention, and (b) A partial front view showing the state in which the first-floor wooden building and the second-floor wooden building are fixed to the ground-side foundation. [Modes for carrying out the invention]

[0028] The following describes a specific embodiment of the present invention, a wooden building, and a method for relocating it, using drawings. In the following, the terms "top" and "bottom" are used based on the installed state of the wooden building.

[0029] First, the wooden building 1 of the first embodiment will be described with reference to Figures 1 to 7. The wooden building 1 is a building to be used on its own and is a single, unified building that is smaller than a unit-type building which is made up of multiple units. The wooden building 1 comprises a frame 10, a roof 60, an exterior wall 80, a floor 85, multiple lower support parts 20, and multiple lifting parts 30.

[0030] The framework 10 comprises a base 11, a plurality of columns 12, and beam sections 13. The base 11, columns 12, and beam sections 13 are made of wood. In other words, the framework 10 is made of wood. The base 11 is formed in a frame shape so as to be aligned horizontally when the wooden building 1 is installed, and is placed on a concrete foundation 90 that supports the wooden building 1. A foundation packing 14 is placed between the base 11 and the concrete foundation 90. The columns 12 are erected on the base 11. The columns 12 are provided at multiple locations, including the four corners of the base 11. The beam section 13 consists of a plurality of beams arranged to span between each column 12 at the upper ends of the columns 12. In the first embodiment, the beam section 13 is formed in a frame shape so as to overlap with the base 11 when viewed from directly above. As a result, the framework 10 as a whole is formed in a substantially rectangular parallelepiped frame shape.

[0031] The roof 60 comprises rafters 61 that constitute the roof structure, structural plywood 62 and roofing felt 63 that constitute the roof base, and a metal roof section 64. In the first embodiment, the roof 60 slopes from one beam section 13 to the other (sloping downwards from right to left on the plane of the paper in Figure 1). Hereinafter, the direction of the slope of the roof 60 will be simply referred to as the "sloping direction." Multiple rafters 61 are arranged at intervals to span between two parallel beams that constitute the beam section 13 and are fixed to the beam section 13. The structural plywood 62 and roofing felt 63 are laid on top of the rafters 61 and form a roof base having an upper surface 75 that extends planarly along the direction of the slope.

[0032] In the first embodiment, the roof 60 is a corrugated metal roof. The metal roof section 64 includes a groove plate 65, a cover 70, a hanger 72, and a cap 74 (see Figure 7). The groove plate 65 has a thin, plate-shaped roof surface section 66 that extends along the upper surface 75 of the roof substrate, and rising sections 67 that are erected from both ends of the roof surface section 66 in a direction perpendicular to the inclination direction. Multiple groove plates 65 are arranged in a direction perpendicular to the inclination direction. Each of the multiple groove plates 65 is spaced apart between its own rising section 67 and the rising section 67 of the adjacent groove plate 65. Of the multiple groove plates 65, two adjacent groove plates 65 may be arranged on either side of a lifting section 30, which will be described in detail later (Case 1), or they may be arranged in a position where there is no lifting section 30 between them (Case 2).

[0033] In Case 1 described above, the upper end 31 of the lifting portion 30 protrudes from the upper surface 75 of the roof base between the rising portions 67 of the two adjacent groove plates 65, as will be described later. A core timber 71 made of wood is placed in the space between the two rising portions 67 at a position that does not interfere with the upper end 31. Then, a cover 70 is placed over the two rising portions 67 and the core timber 71 (see Figure 7(c)).

[0034] In Case 2 described above, a U-shaped hanger 72 is fitted between the rising portions 67 of two adjacent groove plates 65. The bottom of the hanger 72 is fixed to the roof base and rafters 61 with screws 73. A cap 74 is then placed over the two rising portions 67 and the hanger 72. The cap 74 is crimped and fixed on both sides in a direction perpendicular to the inclination direction (see Figures 7(a) and (b)).

[0035] The exterior wall 80 constitutes the exterior of the wooden building 1. The floor 85, and the interior walls and ceiling (not shown in the illustration), constitute the interior of the wooden building 1. Known materials can be used for these exterior wall 80, floor 85, interior walls and ceiling. For example, the exterior wall 80 comprises structural plywood 81, ventilation battens 82, and metal exterior wall panels 83 arranged sequentially from the column 12 toward the exterior. The floor 85 comprises insulation material 86, structural plywood 87, and flooring material 88 arranged sequentially from the foundation 11 toward the interior. Although not shown, the interior walls and ceiling comprise gypsum board and wallpaper, etc., arranged sequentially toward the interior. The above-described exterior and interior configurations are merely examples and are not particularly limited to these.

[0036] The lower support portion 20 is a metal member that abuts against the lower surface 16 of the base 11. In the first embodiment, the lower support portion 20 is made of a flat plate and is positioned so that its thickness direction coincides with the vertical direction. The lower support portion 20 also has an extension portion 21 that extends outward (towards the outdoor side) from the base 11. An internal through hole 22 that penetrates vertically is formed in the portion of the lower support portion 20 that abuts against the lower surface 16 of the base 11. An external through hole 23 that penetrates vertically is formed in the extension portion 21 (see Figure 2(c)).

[0037] Furthermore, the lower support sections 20 are provided in multiple locations in a distributed manner so that they can evenly support the load of the lifted wooden building 1, as described later. In the first embodiment, the lower support sections 20 are provided in four locations. A plate receiving groove 15 that is recessed upward is formed in the lower part of the base 11. The lower surface 16 is the bottom surface of the base 11 within the plate receiving groove 15. The lower support sections 20 are housed in the plate receiving groove 15, and the bottom surface of the lower support sections 20 is on the same plane as the bottom surface of the part of the base 11 where the plate receiving groove 15 is not formed.

[0038] The lifting section 30 is long and rod-shaped, with its lower end fixed to the lower support section 20, and penetrates the base 11 and beam section 13 vertically. In the first embodiment, the lifting section 30 is made of metal and is provided at four positions that overlap with the rafters 61 when viewed from directly above, corresponding to the number of lower support sections 20. The lifting section 30 penetrates the lower support section 20, base 11, beam section 13, rafters 61, and roof underlayment (structural plywood 62 and roofing felt 63) in order from bottom to top. The upper end 31 of the lifting section 30 protrudes above the upper surface 75 of the roof underlayment.

[0039] Specifically, the lifting section 30 is equipped with three rod-shaped members that can be divided into multiple parts vertically. In this embodiment, these three rod-shaped members are a lower bolt 32, an intermediate bolt 34, and an upper bolt 35. The lower bolt 32 is a bolt with a head, which is inserted from below into the inner insertion hole 22 of the lower support section 20 and passes through the base 11, and is detachably fastened from above the base 11 with a nut 36. As a result, the lower support section 20 and the base 11 are sandwiched between the head 33 of the lower bolt 32 and the nut 36, and are fixed together as one unit. The intermediate bolt 34 is a fully threaded bolt and is positioned to extend upward from the lower bolt 32. The lower end of the intermediate bolt 34 is detachably connected to the upper end of the lower bolt 32 with a long nut 37. The upper bolt 35 is a fully threaded bolt and is positioned to extend upward from the intermediate bolt 34. The lower end of the upper bolt 35 is detachably connected to the upper end of the intermediate bolt 34 by a long nut 37.

[0040] Anchor bolts 91 are embedded in the concrete foundation 90 that supports the wooden building 1. The upper part of the anchor bolts 91 protrudes above the concrete foundation 90. The protruding portion of the anchor bolts 91 is inserted from below into the outer insertion hole 23 of the extension portion 21 and secured with a nut 92. In this way, the base 11 is fixed to the concrete foundation 90 via the lower support portion 20. The lower support portion 20 serves both as a fixing bracket for fixing the wooden building 1 to the concrete foundation 90 in this manner, and as described above, for fixing the lower end of the lifting portion 30 to the base 11.

[0041] The detailed procedure for relocation will be described later, but in the relocation in progress shown in Figure 1, the upper end portion 31 of the lifting portion 30, which protrudes upward from the upper surface 75 of the roof base, is detachably fitted with lifting attachments 40 and 50 that integrally fix the upper end portion 31 and the beam portion 13. The upper end portion 31 is provided to be as short in the vertical direction as possible while still allowing the lifting attachments 40 and 50 to be detachably fitted. In the first embodiment, the upper end portion 31 is the part of the upper bolt 35 that extends above the upper surface 75, and is of a length that does not protrude above the rising portion 67. The lifting attachment 40 is used on the higher side of the sloping roof 60, and the lifting attachment 50 is used on the lower side of the roof 60.

[0042] Specifically, the lifting attachment 40 on the high-altitude side comprises an eyebolt 41, a long nut 43, and a fixing plate 44. The eyebolt 41 has a bolt portion 42a and a ring portion 42b, and the ring portion 42b connects it to the lifting frame 95 of the crane.

[0043] The fixing plate 44 is a metal member interposed between the seating surface of the eyebolt 41 and the upper surface of the roof surface 66. The fixing plate 44 consists of a central raised portion 45 having a U-shaped cross-section that opens downwards, and two flat roof surface contact portions 46 that extend outward from both ends of the central raised portion 45. An insertion hole 47 is drilled in the upper center of the central raised portion 45.

[0044] When attaching the suspension attachment 40 to the roof 60, the bolt portion 42a of the eyebolt 41 is inserted from above into the insertion hole 47 of the fixing plate 44, and the upper end portion 31 protruding from the upper surface 75 of the roof substrate at the suspension portion 30 and the bolt portion 42a are connected with a long nut 43. As a result, interference between the two rising portions 67 on both sides of the upper end portion 3 and the fixing plate 44 is avoided by the central raised portion 45, and the two roof surface contact portions 46 come into contact with the roof surface portion 66. Cushioning material is placed at the bottom of the roof surface contact portions 46 to prevent damage to the metal roof portion 64. The roof surface contact portions 46 are formed at an angle with respect to the horizontal plane so as to follow the sloping roof surface, that is, the upper surface of the roof surface portion 66.

[0045] The only differences between the lower-side suspension attachment 50 and the suspension attachment 40 are that the lower-side suspension attachment 50 is further equipped with a connecting bolt 51 and a long nut 53, and that the central raised portion 55 of the fixing plate 54 is formed to be higher in the vertical direction compared to the central raised portion 45 of the fixing plate 44. Otherwise, the configuration is the same and it is attached to the roof 60 in the same way. The connecting bolt 51 and the long nut 53 are provided between the eye bolt 41 and the long nut 43. The height of the central raised portion 55 and the length of the connecting bolt 51 are set to match the slope of the roof 60, so that the height of the ring portion 42b of the suspension attachment 40 and the height of the ring portion 42b of the suspension attachment 50 are the same.

[0046] When attaching the lifting attachments 40 and 50 to the roof 60, screwing the long nut 43 into the upper end 31 causes the seating surface of the eyebolt 41 to push down on the central raised portion 45 and 55, and the roof surface contact portion 46 to press against the roof 60. At this time, the fixing plates 44 and 54 act as interpositions between the eyebolt 41 and the roof 60, bracing vertically and resisting the force that would cause the eyebolt 41 and the long nut 43 to move downward. As a result, a tensile force (axial force) is generated in the lifting portion 30 and a compressive force (tightening force) is generated in the fixing plate 44, and the upper end 31 is fixed integrally with the roof 60 and the beam portion 13. In the first embodiment, the long nut 43 is screwed into the upper end 31 such that the above-mentioned tightening force is greater than the lifting force applied to the lifting portion 30 (the force acting on the lifting portion 30 when lifting the wooden building 1 via the lifting attachments 40 and 50).

[0047] The lifting frame 95 comprises two H-shaped steel beams 93 and two connecting steel beams 94 that connect the ends of the two H-shaped steel beams 93, and is formed in a rectangular frame shape when viewed from above. The lifting frame 95 is connected to the ring portion 42b by connecting shafts 96 attached to each of the four corners (see Figure 4). The lifting frame 95 also has wire shafts 97 attached to each of the four corners near the connecting shafts 96. In order to suspend the lifting frame 95 from one location, one end of a wire 98 is attached to each wire shaft 97, and the other ends of the four wires are bundled together and connected to the crane (see Figures 5(a) and (b)).

[0048] In the completed installation state of the wooden building 1 shown in Figures 6 and 7(c), the lifting attachments 40 and 50 have been removed, as will be described later. In this state, of the components used for lifting the wooden building 1, only the upper end portion 31 protrudes above the upper surface 75 of the roof base. The upper end portion 31 is covered by an exterior cover 70 so that it is not visible from the outside. When the wooden building 1 is moved again, the cover 70 is removed and the lifting attachments 40 and 50 are attached to the upper end portion 31.

[0049] As described above, in the wooden building 1 of the first embodiment, the framework 10, consisting of the base 11, columns 12, and beams 13, is made of wood. Multiple lower support parts 20 are arranged on the lower surface 16 of the base 11, which abut against the lower surface 16. The lower end of a long rod-shaped lifting part 30 is fixed to the lower support parts 20. The lifting part 30 penetrates the base 11 and beams 13 vertically. As a result, the wooden building 1 can be lifted by connecting the portion of the lifting part 30 that protrudes above the upper surface 75 of the roof base to the crane's wire. At this time, even though the crane's wire is connected to the top of the wooden building 1 for lifting, the wooden building 1 is lifted from below the base 11. Therefore, the framework 10 can be lifted without deformation or damage.

[0050] Furthermore, in the first embodiment, the lifting force is applied to the base 11 via the lifting unit 30, lifting the base 11 from below, making it possible to lift and move the building with the interior and exterior already finished. For example, a wooden building 1 can be lifted and moved with one or both of the interior and exterior already finished in the factory, and even after it has been installed at the installation site and the interior and exterior have been finished, it can be moved again.

[0051] Furthermore, in the first embodiment, since the lifting section 30 penetrates the base 11 and the beam section 13 vertically, the lifting section 30 is positioned between the interior wall and the exterior wall 80 installed on the column 12, similar to the column 12. As a result, the lifting section 30 becomes invisible from the outside of the wooden building 1 when the exterior wall 80 is installed, and can also be made invisible from the outside of the wooden building 1 when the interior wall is finished.

[0052] Furthermore, in the first embodiment, since the frame 10 is made of wood, the weight of the wooden building 1 is lighter compared to conventional container houses and the like, where the frame is made of steel, making transportation and lifting work easier when relocating. Regarding transportation, it becomes possible to transport the wooden building 1 with a smaller transport vehicle with a lower load capacity limit, making it possible to transport even when it is necessary to go through narrow roads, for example. Regarding lifting work, there is more leeway in the lifting load limit of the crane, allowing for safer work. In addition, if there is not enough space around the installation site and both a transport vehicle and a crane truck cannot enter, it is conceivable to use a truck with a crane mounted between the driver's seat and the cargo bed to perform both transportation and lifting work. Even when using such a crane-equipped truck, the relatively lightweight wooden building 1 of the first embodiment can relatively easily meet the load capacity limit and lifting load limit conditions.

[0053] Furthermore, in the first embodiment, the lifting section 30 is divisible into multiple parts. Specifically, it is divisible between the lower bolt 32 and the intermediate bolt 34 above the base 11, and between the intermediate bolt 34 and the upper bolt 35 below the beam section 13. Therefore, when installing the lifting section 30 so as to penetrate the base 11 and the beam section 13 vertically, the divided parts can be attached one by one, making installation easier compared to the case where the lifting section consists of a single long rod-shaped member. Also, if it becomes necessary to replace the lifting section 30 after lifting, it is possible to replace it partially in divided units rather than replacing the entire lifting section 30, that is, to replace each of the lower bolt 32, intermediate bolt 34, and upper bolt 35 individually. In addition, when the wooden building 1 is installed in its location (when it does not need to be lifted), the intermediate bolt 34 can be removed.

[0054] Furthermore, in the first embodiment, the suspension attachments 40 and 50 are attached to the upper end portion 31, and the upper end portion 31 is fixed integrally with the beam portion 13 and the roof 60. This prevents the wooden building 1 from swaying when lifted, even if there is a clearance between the lifting portion 30, which is inserted through the through hole formed in the beam portion 13 and the roof 60, and the through hole, due to the lifting portion 30 moving relative to the through hole by the amount of the clearance.

[0055] Furthermore, in the first embodiment, lifting attachments 40 and 50 with different heights are used to match the slope of the roof 60. Specifically, the length of each part is set so that the height of the ring portion 42b of the lifting attachment 40 on the higher side is the same as the height of the ring portion 42b of the lifting attachment 50 on the lower side. As a result, the wooden building 1 can be lifted while maintaining a horizontal position using a single wire of the crane (a wire connected to four bundled wires 98).

[0056] Furthermore, in the first embodiment, when attaching the lifting attachments 40 and 50, the long nuts 43 are screwed into the upper end portion 31 such that the tightening force of the long nuts 43 is greater than the lifting force applied to the lifting portion 30. Therefore, when the wooden building 1 is lifted by the crane, it is possible to prevent the lifting attachments 40 and 50 from becoming loose. Consequently, the swaying of the lifted wooden building 1 can be minimized, and the workability when placing it on the concrete foundation 90 is improved.

[0057] Furthermore, in the first embodiment, the crane's lifting device (lifting frame 95) is not directly connected to the upper end 31, but is connected via the lifting attachments 40 and 50. This reduces the risk of damage to the lifting frame 95 from hitting the roof 60 or the like during preparatory work before lifting. Also, during the preparatory work, the lifting frame 95 can be placed on the lifting attachments 40 and 50 before the connection work can be carried out calmly.

[0058] Furthermore, in the first embodiment, the crane is connected to the upper end 31 using a frame-shaped lifting frame 95. This allows the upper end 31 to be lifted straight up when the wooden building 1 is lifted. If the crane's wires 98 were directly connected to each upper end 31, a force would act to pull the tip of each upper end 31 towards the lifting center, potentially causing the lifting section 30 to bend and become distorted. In contrast, in the first embodiment, the upper end 31 can be lifted straight up, thus minimizing distortion of the lifting section 30.

[0059] Furthermore, in the first embodiment, the lower support portion 20 has an extension portion 21 that extends outward from the base 11. An external insertion hole 23 is formed in the extension portion 21 that penetrates vertically. The extension portion 21 is fastened with an anchor bolt 91 inserted through the external insertion hole 23 from below and secured with a nut 92. In this way, the lower support portion 20 that supports the base 11 from below when lifting the wooden building 1 also serves as a fixing bracket for fixing the wooden building 1 to the concrete foundation 90. Therefore, there is no need to provide a separate fixing bracket, and the number of parts can be reduced.

[0060] Next, a method for relocating wooden building 1 will be described. This relocation method includes an attachment installation step, a first lifting step, a transportation step, a second lifting step, a fixing step, an attachment removal step, and a cover installation step.

[0061] In the attachment installation process, lifting attachments 40 and 50 are detachably attached to the upper end 31 of the lifting section 30 that protrudes upward from the beam section 13. In the first lifting process, the wooden building 1 is lifted by a crane via the lifting attachments 40 and 50 and placed on a transport vehicle. If the lifting location is a factory, a hoist may be used instead of a crane. In the transport process, the wooden building 1 is transported by the transport vehicle to the installation site where the concrete foundation 90 is located.

[0062] In the second lifting process, the wooden building 1 is lifted by a crane via the lifting attachments 40 and 50 and placed on the concrete foundation 90. In the fixing process, the wooden building 1 is fixed to the concrete foundation 90 by fastening the extension 21 to anchor bolts 91 embedded in the concrete foundation 90 with nuts 92. In the attachment removal process, the lifting attachments 40 and 50 are removed from the upper end 31. In the cover installation process, the upper end 31 is covered with a cover 70 so that it is not visible from the outside.

[0063] As described above, according to the method for relocating the wooden building 1 of the first embodiment, the suspension attachments 40 and 50 are detachably attached to the upper end portion 31, and when the installation on the concrete foundation 90 is completed, the suspension attachments 40 and 50 are removed from the upper end portion 31. By making the suspension attachments 40 and 50 detachable in this way, the only part of the structure provided for lifting that protrudes above the beam portion 13 is the upper end portion 31 of the lifting portion 30. Therefore, the upper end portion 31 can be easily covered with a cover 70 (part of the roof) so that it is not visible from the outside. In particular, in the first embodiment, the roof 60 is a corrugated metal roof, and the upper end portion 31 is positioned between the rising portions 67 of two adjacent groove plates 65. By providing the cover 70 so as to cover the space between these two rising portions 67 from above, the area where the cover 70 is attached is almost indistinguishable from the area where the hangers 68 and caps 71 of the corrugated metal roof are located. Therefore, it is not apparent from the outside that the upper end portion 31 protrudes upward from the upper surface 75 of the roof underlayment.

[0064] Next, the wooden building 1A of the second embodiment will be described with reference to Figure 8. Compared to the wooden building 1 of the first embodiment, the wooden building 1A differs in that it has a lower support portion 20A instead of a lower support portion 20, and a ground-side base 17 is placed below the base 11, but the other configurations are the same. In the following, the same reference numerals are used for components that are the same as in the first embodiment, and detailed explanations are omitted. The lower support portion 20A does not extend outward beyond the base 11, and corresponds to a configuration in which the extension portion 21 is removed from the lower support portion 20.

[0065] The ground-side base 17 is made of wood, is frame-shaped, and is fixed to the concrete foundation 90 using anchor bolts 91 and nuts 92. A positioning projection 18 is provided on the upper surface of the ground-side base 17. Here, the positioning projection 18 is made of a pin. A positioning recess 19 is provided on the lower surface of the base 11. The positioning recess 19 is made of a hole that fits into the positioning projection 18, and by fitting into the positioning projection 18, the base 11 is positioned when it is placed on the ground-side base 17. The base 11 is fixed to the ground-side base 17 using a plate-shaped connecting member 25 that is positioned to bridge the gap between the base 11 and the ground-side base 17, and a number of screws.

[0066] As described above, according to the wooden building 1A of the second embodiment, similar to the wooden building 1 of the first embodiment, the framework 10 is made of wood, yet it can be lifted without deforming or damaging the framework 10.

[0067] Furthermore, in the second embodiment, after fixing the ground-side base 17 to the concrete foundation 90, the wooden building 1A (excluding the ground-side base 17) is lifted and placed on the ground-side base 17, and the base 11 and the ground-side base 17 are fixed with the connecting member 25, thereby completing the installation of the wooden building 1A. Therefore, the installation work of the wooden building 1A is easy. In addition, since the ground-side base 17 can be manufactured in the same factory as the base 11, sufficient positioning accuracy between the positioning protrusion 18 and the positioning recess 19 can be ensured.

[0068] Furthermore, when the base 11 and the ground-side base 17 are stacked and placed on top of the concrete foundation 90, as in the second embodiment, the underfloor space between the floor 85 and the concrete foundation 90 can be widened by the height of the ground-side base 17, compared to when only the base 11 is placed on the concrete foundation 90. As a result, plumbing and other water-related pipes can be housed in the underfloor space. When multiple wooden buildings 1A constitute a single building unit, the building formed by combining these units may require water supply and drainage equipment at locations different from those adjacent to the exterior walls. In such cases, adopting a configuration that allows plumbing and other water-related pipes to be housed in the underfloor space, as in this embodiment, is suitable. Such a configuration significantly increases the freedom of the floor plan within the building formed by combining the units.

[0069] As described above, wooden structures 1,1A are fixed to a concrete foundation 90, making them suitable not as temporary structures but as long-term residences, thus meeting the demand for compact housing in recent years. Furthermore, wooden structures 1,1A can be easily added to existing buildings or combined with other wooden structures 1,1A to easily extend existing structures. In addition, even after a wooden structure 1,1A has been installed, it can be easily moved, and at least the framework 10 can be reused, thus reducing waste and making effective use of resources.

[0070] Next, the wooden building 1B of the third embodiment will be described with reference to Figures 9(a) and (b). The wooden building 1B is the same as the wooden buildings 1 and 1A of the first and second embodiments, except that it is equipped with a lower support part 20B shown in Figure 9(a) instead of the lower support parts 20 and 20A of the first and second embodiments. In the following, the same reference numerals will be used for components that are the same as those in the first and second embodiments, and detailed explanations will be omitted.

[0071] The lower support portion 20B is made of a metal material such as stainless steel and has a flat upper plate 20Ba that contacts the base 11 and a lower member 20Bb that faces the ground. Also, similar to the lower support portion 20A in the second embodiment, the lower support portion 20B does not extend outward from the base 11 when fixed to the base 11. The upper plate 20Ba is a plate-like member having a long side, a short side and a thickness. The lower member 20Bb has a U-shaped cross-section that opens upward and comprises a bottom plate 20Bb1 and two upright legs 20Bb2 that rise from the bottom plate 20Bb1. The distance between the two upright legs 20Bb2 is slightly narrower than the long side of the upper plate 20Ba, and the width of the two upright legs 20Bb2 is approximately the same length as the short side of the upper plate 20Ba. The lower support portion 20B is formed by welding or other means to the lower surface of the upper plate 20Ba, so that the tops of the two upright legs 20Bb2 of the lower member 20Bb protrude equally from the joint on both sides of the long side of the upper plate 20Ba. As a result, as shown in Figure 9(a), the lower support portion 20B has a bottom plate 20Bb1 that is approximately parallel to and opposite the upper plate 20Ba, and two upright legs 20Bb2 that connect the bottom plate 20Bb1 and the upper plate 20Ba, resulting in a hollow cubic structure with both sides of the short side of the upper plate 20Ba open. The outer surfaces of the two upright legs 20Bb2 are approximately perpendicular to the upper plate 20Ba and the bottom plate 20Bb1, but the hollow side surfaces are inclined so that the width of the hollow decreases as you move from the upper plate 20Ba towards the bottom plate 20Bb1, so that the upright legs 20Bb2 become thicker as they go downwards.

[0072] An inner insertion hole 22B is drilled in the upper plate 20Ba of the lower support portion 20B. The inner insertion hole 22B serves the same purpose as the inner insertion hole 22 in the first embodiment, and is connectable to the lower bolt 32 at the lower end of the lifting portion 30, and the upper plate 20Ba is fixed to the base 11 by the lower bolt 32. In addition, one or two mounting insertion holes 20Bc are drilled in the two standing leg portions 20Bb2. The effect of the mounting insertion holes 20Bc will be described in detail in the modified examples described later. Furthermore, a ground-side insertion hole 20Bd may be provided in the bottom plate 20Bb1 of the lower support portion 20B to facilitate the connection of the lower support portion 20B to the base 11.

[0073] Figure 9(b) shows the lower support portion 20B fixed to the base 11. By fixing the lower support portion 20B to the base 11, the wooden building 1B can be stably supported by the upper plate 20Ba when lifted. Furthermore, since the lower support portion 20B is fixed in a position that can evenly distribute the load of the lifted wooden building 1B, the wooden building 1B can be stably held even when the lower surface of the lower member 20Bb is in direct contact with the ground G.

[0074] Furthermore, since the lower support portion 20B is higher than the ground surface G by the height of the support leg portion 20Bb2, the underside of the foundation 11 will not be damaged even if the wooden building 1B, to which the lower support portion 20B is fixed, is temporarily placed on paved or leveled ground G. Also, when the wooden building 1B is temporarily placed, even if it rains, rainwater will flow through the gap between the underside of the foundation 11 and the ground G, so the underside of the foundation 11 will not deteriorate due to rainwater. If the height of the support leg portion 20Bb is about 60-70 mm, preferably about 65 mm, the underside of the foundation 11 will not be affected by stones on the paved or leveled ground G or by rainwater.

[0075] In the third embodiment, when a rest area or similar facility is temporarily needed at an event venue, the wooden structure 1B with the lower support section 20B fixed to it can be transported and installed directly at the event venue, and the wooden structure 1B can be temporarily rented out.

[0076] Furthermore, a modification 1 of the third embodiment will be described with reference to Figures 10(a) and (b). The difference in modification 1 from the third embodiment is that it is equipped with a mounting caster member 26 as an accessory member.

[0077] As shown in Figure 10(a), the mounting caster member 26 comprises a caster fitting 26a and a wheel 26b. The caster fitting 26a has an upper plate 26a1 having a fitting recess with a U-shaped cross-section that opens upward and into which the lower surface member 20Bb of the lower support portion 20B can be fitted, and a wheel support portion 26a2 connected to the upper plate 26a1. The wheel 26b is fixed to the wheel support portion 26a2 and is rotatable. The mounting caster member 26 may have a known mechanism in the wheel support portion 26a2 to make the wheel 26 movable or immovable. When the lower surface member 20Bb of the lower support portion 20B is fitted into the fitting recess of the upper plate 26a1, a caster-side insertion hole 26c is provided at a position corresponding to the mounting insertion hole 20Bc of the support leg portion 20Bb.

[0078] The mounting caster member 26 can be attached to the wooden building 1B by lifting the wooden building 1B to which the lower support portion 20B is attached using a jack or the like, inserting the lower surface member 20Bb of the lower support portion 20B into the fitting recess of the upper plate 26a1 of the mounting caster member 26, and then inserting and fastening the mounting insertion hole 20Bc and the caster-side insertion hole 26c with a bolt 26d.

[0079] Figure 10(b) shows the state in which the mounting caster member 26 is attached to the lower support portion 20B. In this state, the wooden building 1B can be moved manually without the need for a crane or other equipment. At event venues, etc., it may be necessary to adjust the installation position of the wooden building 1B after it has been set up. In the modified example 1 of the third embodiment, since the mounting caster member 26 is attached to the lower support portion 20B, there is no need to arrange for a crane or other equipment again, and the wooden building 1B can be moved manually. Note that the mounting caster member 26 may be other moving mechanisms such as a chill roller or chill tank, as long as it can be attached to the lower support portion 20B.

[0080] Furthermore, a second modification of the third embodiment will be described with reference to Figures 11(a) and (b). The difference in the second modification is that, as an accessory member, the mounting caster member 26 of the first modification is replaced with a mounting extension member 21B. The second modification of the third embodiment is an example in which the lower support portion 20B is fixed to the foundation 90 or the ground-side base 17, similar to the first embodiment.

[0081] As shown in Figure 11(a), the mounting extension member 21B is a substantially L-shaped member consisting of a mounting portion 21a and a foundation fixing portion 21b that is substantially perpendicular to the mounting portion 21a. The mounting extension member 21B is made of a metal material such as stainless steel. The mounting portion 21a is configured in a shape and size that corresponds to the standing leg portion 20Bb2 of the lower support portion 20B. When the mounting portion 21a is attached to the standing leg portion 20Bb2, a mounting portion-side insertion hole 21c is drilled in the mounting portion 21a at a position corresponding to the mounting insertion hole 20Bc of the standing leg portion 20Bb2. The foundation fixing portion 21b is formed to be longer than the width of the mounting portion 21a, and an outer insertion hole 23B through which an anchor bolt 91 is inserted is drilled in the portion that is longer than the width of the mounting portion 21a. When the mounting extension member 21B is attached to the lower support portion 20B, the lower surface of the foundation fixing portion 21b becomes substantially flush with the lower surface of the bottom plate 20Bb1 of the lower support portion 20B.

[0082] When the lower support portion 20B is fixed to the base 11, it does not extend outward beyond the base 11. However, by inserting the mounting portion 21a of the mounting extension member 21B into the upright portion 20Bb2 of the lower support portion 20B using bolts 21d, and fastening the mounting insertion hole 20Bc and the mounting portion side insertion hole 21c, the configuration of the foundation fixing portion 21b corresponding to the extension portion 21 of the first embodiment can be obtained. When attaching the wooden building 1B to the foundation 90, with the mounting extension member 21B attached to the lower support portion 20B, the anchor bolt 91 can be inserted into the outer insertion hole 23B of the foundation fixing portion 21b of the mounting extension member 21B, and fastened with a nut 92 to fix it in place, thereby enabling fixation to the base 11.

[0083] Unlike the lower support portion 20, the lower support portion 20B does not have an extension portion 21 that protrudes outward from the column 12 of the frame portion 10, thus eliminating the problem of being unable to be placed on the loading platform due to the protruding extension portion 21 during transport by a transport vehicle. Furthermore, by providing mounting insertion holes 20Bc in the lower support portion 20B, the attached mounting extension member 21B can be fixed to the foundation 90, and by fixing the mounting extension member 21B to the foundation 90, the wooden building 1B can be fixed to the foundation 90 with almost the same strength as the extension portion 21 of the lower support portion 20.

[0084] As described above, according to the wooden building 1B of the third embodiment and modified examples 1 and 2, the lower support portion 20B attached to the wooden building 1B has the function of supporting the base 11 from below when lifted, and because it is a cubic structure with vertical height, the base 11 has a sufficient gap with the ground G, so that the base 11 does not corrode or get damaged. In addition, the lower support portion 20B can be used to directly create the wooden building 1B by providing a frame-like structure for the base 11 on the lower support portion 20B, which also increases the convenience of manufacturing in a factory. Furthermore, by drilling mounting insertion holes 20Bc in the upright portion 20Bb2 of the lower support portion 20B, it becomes possible to connect auxiliary members such as mounting caster members 26 and mounting extension members 21B, which greatly increases the convenience of transporting and installing the wooden building 1B.

[0085] In the third embodiment and modifications 1 and 2, the mounting insertion hole 20Bc of the lower support portion 20B is drilled in the support leg portion 20Bb2, but it may also be provided in the bottom plate 20Bb1 of the lower surface member 20Bb, as long as an accessory member can be attached. The shape of the accessory member and the position of the insertion hole may be changed depending on the position where the mounting insertion hole 20Bc of the lower surface member 20Bb is provided. Furthermore, the accessory member is not limited to modifications 1 and 2, but may be any other accessory member. For example, an impact absorbing member that can be attached to the lower support portion 20B may be used as an accessory member.

[0086] Next, the wooden building 1C of the fourth embodiment will be described with reference to Figures 12(a) and (b). Figure 12 illustrates the second embodiment, which has a lower support portion 20A and a ground-side foundation 17. However, the method of the fourth embodiment can also be applied to the first and third embodiments, which do not have a lower support portion 20A or a ground-side foundation 17.

[0087] The wooden building 1C is a two-story wooden building consisting of a first-floor wooden building 1C1 with horizontal beams 13 of the framework 10, and a second-floor wooden building 1C2 installed on top of the first-floor wooden building 1C1. In the following, components similar to those in other embodiments will be denoted by the same reference numerals, and detailed explanations will be omitted.

[0088] The wooden structure 1C1 on the first floor is composed of a frame 10, and the beams 13 of the frame 10 are horizontal. Furthermore, the roof 60, such as rafters 61, is not provided above the beams 13. Instead, a positioning projection 18, having the same structure as in the second embodiment, is provided on the upper surface of the beams 13. Also, in the example shown in Figure 12, the lower surface of the base 11 is the same as in the second embodiment. Note that the lower support portion 20A of the wooden structure 1C1 may be the aforementioned lower support portion 20 or lower support portion 20B, in which case the ground-side base 17 is not required.

[0089] The second-floor wooden structure 1C2 is equipped with a floor beam 11C instead of a foundation 11, and the floor beam 11C is supported from below by a lower support portion 20A when lifted. The lower surface of the floor beam 11C is provided with a positioning recess 19 having the same structure as in the second embodiment, which fits in with the positioning projection 18 of the beam portion 13 of the wooden structure 1C1. Other components, such as the roof 60 which are not shown in Figure 12, are the same as in the first embodiment. The frame shape formed by the floor beam 11C of the second-floor wooden structure 1C2 may be the same size as the frame shape of the beam portion 13 of the first-floor wooden structure 1C1, or it may be smaller.

[0090] When constructing a two-story wooden building 1C using a relocation method that combines a wooden building 1C1 on the first floor and a wooden building 1C2 on the second floor, it is not possible to use a single continuous column between the wooden building 1C1 on the first floor and the wooden building 1C2 on the second floor. Therefore, in order to prevent the column 12 from coming out of the base 11 or beam section 13, it is necessary to fix it using a known hold-down fitting (tension fitting) 84 in addition to fixing the connecting member 25. The wooden building 1C1 on the first floor and the base 17 on the ground are connected within the framework section 10, with a bolt 84a1 with a washer passing through the base 17 and the base 11 of the wooden building 1C1 on the first floor, and are attached using a hold-down fitting 84, tension nuts 84b, and bolts 84c. Furthermore, the wooden structure 1C1 on the first floor and the wooden structure 1C2 on the second floor are connected within the framework 10, with anchor bolts 84a2 passing through the beam 13 of the wooden structure 1C1 on the first floor and the floor beam 11C of the wooden structure 1C2 on the second floor, and are attached using hold-down hardware 84, tension nuts 84b, and bolts 84c. Note that anchor bolts may be used instead of bolts with washers 84a1, and anchor bolts 84a2 may be used instead of bolts with washers.

[0091] In the case of the wooden structure 1C1 on the first floor, fixing it to the ground-side foundation 17 is only done by fixing the connecting member 25 and the hold-down hardware 84 inside the framework 10. However, since the wooden structure 1C2 on the second floor is installed on top of the wooden structure 1C1 on the first floor, structural problems arise in terms of earthquake resistance.

[0092] Therefore, in the fourth embodiment, when the wooden building 1C1 on the first floor is installed on the foundation 90, anchor bolts or wires are embedded as reinforcing members 99 at a position outside the frame 10. After the wooden building 1C1 on the first floor is installed on the foundation 90, the reinforcing members 99 are fixed with reinforcing hold-down fittings 89 and tension nuts 89b, and the reinforcing hold-down fittings 89 are fixed from the outside of the column 12 with bolts 89c, thereby creating a structure that is not problematic in terms of earthquake resistance.

[0093] Next, the method for relocating the wooden building 1C will be described. The relocation method, in which the first-floor wooden building 1C1 and the second-floor wooden building 1C2, manufactured in the factory, are transported to the installation site by transport vehicle, is the same as the relocation method for the wooden building 1 of the first embodiment, except that after relocating the first-floor wooden building 1C1, the second-floor wooden building 1C2 is moved onto the first-floor wooden building 1C1. The relocation method of the fourth embodiment further includes, in addition to the relocation method of the first embodiment, an embedding step in which reinforcing members 99 are embedded in the foundation 90 before relocation, and a reinforcing member attachment step in which the reinforcing members 99 are attached to the columns 12 of the first-floor wooden building 1C1 after relocating the first-floor wooden building 1C1 and before the cover attachment step.

[0094] In the fourth embodiment, the specific relocation method involves, as a burying step, burying reinforcing members 99 in the concrete foundation 90 in a position that will be outside the framework 10 when the first-floor wooden building 1C1 is installed at the installation site. Once the preparations for relocation are complete through the burying step, the first-floor wooden building 1C1, manufactured in the factory, is transported by a transport vehicle, similar to the relocation method of the first embodiment. Multiple lifting sections 30 (not shown) of the wooden building 1C1 are lifted by a crane and installed at the installation site.

[0095] In the fixing process, as described above in the first embodiment, in the second embodiment the ground-side base 17 and the connecting member 25 are fixed together, and in the third embodiment the mounting extension member 21B is attached to the lower support portion 20B, and the mounting extension member 21B is fastened to the anchor bolt 91 embedded in the concrete foundation 90 with a nut 92 to fix it in place.

[0096] In the fourth embodiment, in addition to the fixing steps, there is a reinforcing member installation step in which the reinforcing member 99 embedded in the concrete foundation 90 is fixed to the outside of the column 12 using reinforcing hold-down hardware 89. This completes the installation of the wooden building 1C1. Next, the second-floor wooden building 1C2 is transported by a transport vehicle, and the multiple lifting sections 30 (not shown) of the second-floor wooden building 1C2 are lifted by a crane and placed on the beam section 13, and the beam section 13 and floor beam 11C are fixed with the connecting members 25 and the internal hold-down hardware 84, thereby completing the installation of the wooden building 1C2. After that, the exterior is completed in the cover installation step, and the installation of the two-story wooden building 1C is completed. Note that for safety reasons, it is preferable to perform the reinforcing member installation step before the installation of the second-floor wooden building 1C2, but it may also be performed after the installation of the second-floor wooden building 1C2.

[0097] In the fourth embodiment, a two-story wooden building 1C can be constructed using a first-floor wooden building 1C1 and a second-floor wooden building 1C2, both of which are within height, load weight, or lifting load limits that can be transported by a transport vehicle and lifted by a crane. Even a two-story wooden building 1C using transportable wooden buildings 1C1 and 1C2 can be installed without seismic structural problems by using a relocation method with reinforcing members 99, thereby expanding the range of applications for wooden buildings. In the fourth embodiment, by manufacturing the first-floor wooden building 1C1 and the second-floor wooden building 1C2 in a factory and then relocating them, the construction time at the installation site can be significantly reduced, even for a two-story wooden building 1C.

[0098] Although preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various improvements and design changes are possible without departing from the spirit of the present invention, as shown below.

[0099] For example, in the above embodiment, the number of lifting parts 30 was exemplified as being four, but the number is not limited as long as it is possible to lift the wooden buildings 1, 1A, 1B, 1C1, and 1C2 horizontally. Also, in place of the long nut 37 in the above embodiment, other nuts such as double nuts may be used. Also, in place of the upper bolt 35, intermediate bolt 34, and lower bolt 32 in the above embodiment, multiple rod-shaped members may be provided. The connection between these multiple rod-shaped members can be made by screw fastening or pin joints, or any other detachable connection. Also, in the above embodiment, the lower support part 20 was flat or cubic in shape, but it can be any other shape such as block, as long as it can support the base 11 from below when lifting.

[0100] Furthermore, in the above embodiment, the suspension attachments 40 and 50 were equipped with fixing plates 44 and 54, but the fixing plates 44 and 54 are not required. In that case, when lifted, the suspension part 30 will be able to move relative to the roof base and beam part 13 by the amount of clearance around the through hole, but even so, the wooden buildings 1, 1A, 1B, 1C1, and 1C2 can be lifted from below the foundation 11 (floor beam 11C). Also, in the above embodiment, the suspension attachments 40 and 50 were removed after the wooden buildings 1, 1A, 1B, 1C1, and 1C2 were installed, but the suspension attachments 40 and 50 may be left attached and hidden by a roof of a different form than the roof 60. Also, in the above first embodiment, the roof 60 was a corrugated metal roof, but other types of roofs may be used. [Explanation of Symbols]

[0101] 1,1A,1B,1C1,1C2 Wooden buildings 11. Base 12 pillars 13 Beam section 16 Bottom side 17. Ground-side base 20, 20A, 20B Lower support section 20Ba top plate 20Bb Bottom part 22B Inner insertion hole 22Bc mounting insertion hole 25 Joining members 30 Lifting section 31 Upper end 40, 50 Lifting attachments 89 Reinforcement hold-down hardware 99 Reinforcement members

Claims

1. A wooden base in the shape of a frame, Multiple wooden pillars erected on the base, A wooden beam section is frame-shaped and is positioned to span between multiple columns at the upper end of the column, Multiple lower support parts that are in contact with the lower surface of the base, Multiple lifting sections, each in the shape of a long rod, with their lower ends fixed to the lower support section and penetrating vertically through the base and the beam section. A wooden building characterized by having the following features.

2. The lifting section can be divided into multiple parts. A wooden building according to feature 1.

3. A lifting attachment that is attached to the upper end of the lifting portion which protrudes upward from the beam portion, and fixes the upper end and the beam portion together. A wooden building according to claim 1 or 2, further comprising the above.

4. A wooden ground-side base positioned below the aforementioned base, A joining member that connects the aforementioned base and the aforementioned ground-side base. A wooden building according to claim 1 or 2, further comprising the above.

5. The lower support portion comprises an upper plate, a bottom plate facing the upper plate, and a lower member having two support legs connecting the bottom plate and the upper plate. The upper plate is provided with an internal insertion hole which is fixed to the base by the lower end of the lifting portion. The aforementioned lower member is provided with mounting holes for connecting attached members. A wooden building according to claim 1 or 2.

6. A method for relocating a wooden building as described in claim 1, A lifting attachment is detachably attached to the upper end of the lifting portion that protrudes upward from the beam portion, thereby integrally fixing the upper end and the beam portion. The wooden structure is lifted via the aforementioned lifting attachment and placed onto a transport vehicle. Transporting the aforementioned wooden building to the installation site using the aforementioned transport vehicle, The wooden structure is lifted via the aforementioned lifting attachment and installed at the aforementioned location. The aforementioned suspension attachment is removed from the upper end, The upper end portion is covered with the exterior of the wooden building so that it is not visible from the outside. A method for relocating wooden buildings that includes [a specific feature].

7. A method for relocating a wooden building according to claim 6, Including the wooden structure on the first floor and the wooden structure on the second floor, A reinforcing member is embedded in the ground at the location on the first floor side of the wooden building, outside the aforementioned installation site. The aforementioned wooden building on the first floor is installed at the aforementioned installation location. The aforementioned second-floor wooden structure is installed on top of the aforementioned first-floor wooden structure which is installed at the aforementioned installation location. The reinforcing member is fixed to the column of the wooden building on the first floor using reinforcing hold-down hardware. A method for relocating wooden buildings, characterized by further including the following.

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