Pillar construction method and adjustment jig

Abstract

To provide a column construction method that enables efficient construction of a wooden column while suppressing deformation, and a jig for adjusting installation.SOLUTION: A wooden upper column is suspended by a suspension jig attached to the upper column, erected, moved to upward of a wooden lower column, and disposed. A jig for connecting columns is used to adjust inclination of the upper column with respect to the lower column. A jig for aligning column faces is used to align column faces of the lower column and the upper column.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a pillar construction method for constructing wooden pillars and Bicho Regarding repair tools. [Background technology]

[0002] In recent years, the use of wood, which has great advantages from the perspective of wellness, including human health and comfort, has been promoted. As a result, buildings using wooden columns have also been constructed (see, for example, Patent Document 1). In the technology described in this document, a flat slab made of reinforced concrete is placed at the joints of the wooden columns, and the load of this flat slab is supported by the wooden columns. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-92007 Summary of the Invention [Problem to be solved by the invention]

[0004] When constructing wooden columns, it is difficult to apply the same construction methods used for conventional precast concrete (PC). For example, if a large amount of pressure is applied locally during construction of a wooden column, there is a possibility that part of the column may deform.

[0005] Furthermore, when connecting PC columns, erection pieces are sometimes fixed to the outer periphery of the columns in advance at a factory or the like, and then the lower and upper columns are aligned and temporarily fixed using the erection pieces to connect them. However, when connecting wooden columns, it is difficult to install erection pieces. For this reason, it was difficult to align the positions for connecting the upper and lower wooden columns.

[0006] Also, unlike PC columns, wooden columns cannot embed the eyebolt mounting parts used when erecting the column. If an eyebolt is to be attached directly to the column, a large hole must be drilled. Because wooden columns are usually made of plywood, drilling large holes is difficult.

[0007] Furthermore, in the past, when aligning the column surfaces of PC lower and upper columns, a latch plate was hooked onto the connecting bars embedded in either the lower or upper column, and the upper column was then slid. In wooden columns using the GIR (Grade-in-Rod) construction method, the connecting bars are fixed in place with adhesive injected around them, so there is a gap around the connecting bars before the adhesive is injected. Therefore, when hooking a latch plate onto the connecting bars and sliding the upper column in the same way as PC column surface alignment, the column does not move in the gap created by the injection of adhesive, but the rebar does, making it difficult to fine-tune the column surface. [Means for solving the problem]

[0008] The pillar construction method for solving the above problem is a pillar construction method for connecting a wooden upper pillar and a wooden lower pillar, in which the upper pillar is hung and erected by a hanging jig attached to the upper pillar, and moved and positioned above the lower pillar, and a level bolt with an upwardly convex curved surface that is supported by a support member embedded in the lower pillar and provided in the center of the upper surface of the lower pillar is abutted against the level bolt, and the tilt angle relative to the tilt adjustment plate provided on the bottom surface of the upper pillar is adjusted, thereby adjusting the plumbing of the wooden upper pillar and the wooden lower pillar. Furthermore, the plumbing adjustment jig for solving the above problem is a plumbing adjustment jig used to adjust the plumbing between a wooden upper column and a wooden lower column, and is equipped with a level bolt with an upwardly convex curved surface provided in the center of the upper surface of the lower column, a support member that supports the level bolt, and an inclination adjustment plate provided on the bottom surface of the upper column. [Effects of the Invention]

[0009] According to the present invention, wooden pillars can be constructed efficiently while suppressing deformation. [Brief explanation of the drawings]

[0010] [Figure 1] An explanatory diagram illustrating the connection portion of the lower pillar and the upper pillar connected in the pillar construction method in the embodiment. [Figure 2] 1 is a flowchart illustrating the processing steps of a pillar construction method according to an embodiment. [Figure 3] FIG. 2 is a perspective view of a lifting jig used in erection work in the embodiment. [Figure 4] FIG. 2 is a front view of a lifting jig used in erection work in an embodiment. [Figure 5] FIG. 2 is a partially exploded side view of a lifting jig used in erection work in an embodiment. [Figure 6] FIG. 1 is a perspective view of a pillar connecting jig used in erection work in an embodiment. [Figure 7] FIG. 10 is a perspective view of the lower column mounting member of the column connecting jig in the embodiment. [Figure 8] FIG. 10 is a front view of the lower column mounting member of the column connecting jig in the embodiment. [Figure 9] FIG. 10 is a top view of the lower column mounting member of the column connecting jig in the embodiment. [Figure 10] 1A and 1B are explanatory diagrams illustrating the lifting and erecting work in the pillar construction method according to the embodiment, in which (a) shows the state before lifting and (b) shows the lifted state. [Figure 11] An explanatory diagram illustrating the installation work of the lower column mounting member, threaded reinforcing bar, and positioning nut of the column connecting jig in the embodiment, where (a) shows the state where the lower column mounting member is installed, (b) shows the state where the threaded reinforcing bar is fixed, and (c) shows the state where the positioning nut is installed. [Figure 12] 10A and 10B are explanatory diagrams illustrating the erection work in an embodiment, in which (a) shows the state in which the upper column has been lowered, and (b) shows the state in which the upper column mounting member has been fixed. [Figure 13] FIG. 10 is a perspective view of a hanging plate used in column surface alignment work in the embodiment. [Figure 14] FIG. 10 is a perspective view of a state in which a column surface alignment jig is attached in the embodiment. [Figure 15]FIG. 10 is a plan view showing a state in which a column surface alignment jig is attached in the embodiment. [Figure 16] 1A and 1B are explanatory views for explaining the column surface alignment work in the embodiment, in which FIG. 1A shows the state before the column surfaces are aligned, and FIG. 1B shows the state after the column surfaces are aligned. [Figure 17] FIG. 10 is a schematic front view showing the connection between the upper and lower columns, illustrating the plumbing adjustment work using a plumbing adjustment jig in the plumbing adjustment work in the modified example. [Figure 18] An explanatory diagram illustrating a modified example of a pillar connecting jig, where (a) is a front view of the pillar connecting jig, (b) is an oblique view of a lower pillar mounting member used in the pillar connecting jig, and (c) is a top view of the lower pillar mounting member. DETAILED DESCRIPTION OF THE INVENTION

[0011] Below, using Figures 1 to 16, the pillar construction method and Bicho An embodiment of the aligning jig will be described. In this embodiment, a method for installing wooden columns will be described. Here, a method for connecting an upper wooden column to an already installed lower wooden column will be described.

[0012] As shown in FIG. 1, the lower pillar 21 and upper pillar 22 of this embodiment have a substantially rectangular parallelepiped shape and are made of pillar materials in which three laminated veneer lumber (LVL) pieces are integrated together with fastening materials such as bolts and screws. Furthermore, the upper portions of multiple connecting bars 22a are embedded in the lower end of the upper column 22 and fixed with adhesive. The connecting bars 22a are reinforcing bars that connect the upper column 22 and the lower column 21, and protrude downward from the lower surface of the upper column 22. The upper column 22 is transported from the factory with the connecting bars 22a protruding.

[0013] The upper end of the lower column 21 is formed with multiple holes 21a extending in the axial direction of the lower column 21. Each hole 21a is provided to correspond to the position of each connecting bar 22a of the upper column 22, and is sized so that a connecting bar 22a can be inserted therein and adhesive can be injected around the connecting bar 22a. Furthermore, the lower column 21 is formed with side holes 21ah extending horizontally. These side holes 21ah are connected to the lower ends of the holes 21a and open to the side of the lower column 21, and are injection ports for injecting adhesive.

[0014] (Column construction method) As shown in FIG. 2, the overall process of the pillar construction method of this embodiment will be described. First, in this pillar construction method, the upper pillar 22 transported to the construction site by truck or the like is lifted by a crane as a lifting device using a lifting jig, and erected (Step S1). Details of the lifting jig and erection work will be described later.

[0015] In addition, the lower column mounting member of the column connecting jig, the threaded reinforcing bar, and the positioning nut are attached (step S2). Details of the column connecting jig and the attaching work thereof will be described later. Then, after the erected upper pillar 22 is moved onto the lower pillar 21, an erection work is performed in which the upper pillar 22 is temporarily fixed to the lower pillar 21 (step S3). The details of this erection work will be described later.

[0016] When the erection work is completed, the crane is removed from the upper pillar 22 (step S4). Next, a column surface alignment jig is used to align the column surfaces (step S5). Details of the column surface alignment jig and the column surface alignment work will be described later.

[0017] Then, plumbing adjustment work is performed to adjust the inclination of the upper pillar 22 (step S6). Details of this plumbing adjustment work will be described later. After this plumbing adjustment work is completed, the upper pillar 22 is fixed to the lower pillar 21 by a pillar connecting jig.

[0018] Next, adhesive is injected around the connecting bars 22a (Step S7). In this case, the outer periphery of the gap between the lower column 21 and the upper column 22 is covered to prevent the adhesive from leaking out of the gap. Then, with the connecting bars 22a of the upper column 22 inserted into the holes 21a of the lower column 21, adhesive is injected through the side holes 21ah. This adhesive fills the side holes 21ah, the holes 21a, and the gap between the lower column 21 and the upper column 22.

[0019] Then, when the adhesive hardens, the upper column 22 is fixed to the lower column 21 via the adhesive and the connecting bars 22a. Thereafter, the pillar connecting jigs provided on the outer periphery of the upper pillar 22 and the outer periphery of the lower pillar 21 are removed (step S8).

[0020] (hanging jig) Next, the lifting jig 30 used in erection work will be described with reference to FIGS.

[0021] 3, 4 and 5 are a perspective view, a front view and a partially exploded side view of the hanging jig 30. FIG. 3, the lifting jig 30 includes a fixed plate 31, a protruding member 32, and an eyebolt 35. The eyebolt 35 is a commercially available eyebolt that can withstand loads in all directions, and includes a bolt 36, a pivot mounting portion 37, and a ring portion 38.

[0022] The fixed plate 31 is a rectangular plate-like member. The rear surface of the fixed plate 31 is a mounting surface 31f that is attached to the upper column 22. 4, a plurality of mounting holes 31h are provided in the fixing plate 31. The mounting holes 31h are large enough to receive screws. The screws have, for example, an outer diameter of the shaft of about 6 mm and a length of about 10 cm.

[0023] Furthermore, the pivot mounting portion 37 of the eyebolt 35 rotates 360 degrees relative to the bolt 36, as shown by the arrow. Furthermore, the ring portion 38 rotates 180 degrees relative to the pivot mounting portion 37. 5, a through hole 31a is provided in the center of the fixed plate 31. A protruding member 32 having a substantially cylindrical shape is fixed to the central region of the fixed plate 31.

[0024] The protruding member 32 has a protruding portion 32a protruding from one surface in the central region. The length of this protruding portion 32a is several millimeters shorter than the plate thickness T1 of the fixed plate 31, and the protruding portion 32a is fitted into the through hole 31a of the fixed plate 31. Furthermore, the protruding member 32 is welded to an outer circumferential portion W1 that abuts against the surface of the fixed plate 31. A bolt hole 32b is formed through the protruding member 32. The thickness T2 of the protruding member 32 is longer than the length L1 of the shank 36a of the bolt 36 of the eyebolt 35.

[0025] (Column connection jig 40) Next, the pillar connecting jig 40 for fixing the upper pillar 22 to the lower pillar 21 will be described with reference to FIGS.

[0026] 6 is an overall perspective view of the pillar connecting jig 40. The pillar connecting jig 40 includes a lower pillar mounting member 41a fixed to the lower pillar 21, a threaded reinforcing bar 45 as a rod-shaped member, and an upper pillar mounting member 41b fixed to the upper pillar 22.

[0027] Here, the upper pole mounting member 41b has the same configuration as the lower pole mounting member 41a. Therefore, only the configuration of the lower pole mounting member 41a will be described in detail, and the upper pole mounting member 41b will be given the same reference numeral and its detailed description will be omitted.

[0028] 7 to 9 show a perspective view, a front view, and a top view of the lower column mounting member 41a of the column connecting jig 40. As shown in Figure 7, the lower post mounting member 41a includes a horizontally long rectangular plate member 42 and a protrusion 43. A plurality of through holes 42h are provided at intervals around the periphery of the plate member 42. The through holes 42h are large enough to receive screws. The screws have, for example, an outer diameter of the shaft of approximately 6 mm and a length of approximately 10 cm.

[0029] As shown in FIG. 8, the protrusion 43 is fixed to the central region of the plate member . 9, the protrusion 43 includes an L-shaped portion 43a and an S-shaped portion 43b. The protrusion 43 has an end of the S-shaped portion 43b welded to an end of the L-shaped portion 43a, and both shaped portions (43a, 43b) are welded to the surface of the plate member 42, thereby defining a penetration area A1 having a substantially rectangular parallelepiped shape that is open at the top and bottom. This penetration area A1 has an area about two to three times the cross-sectional area of ​​the threaded reinforcing bar 45, and is an area that can define a gap around the threaded reinforcing bar 45 when the threaded reinforcing bar 45 penetrates, allowing the upper column 22 to be adjusted and moved during adjustments such as column surface alignment work.

[0030] 6 further includes a lower fixing member, a positioning nut 48N as a positioning member, washers 48W and 49W, and a nut 49N. The positioning nut 48N, washers 48W and 49W, and nut 49N function as upper column fixing members that fix the upper column mounting member 41b.

[0031] The lower fixing member is composed of nuts 46N, 47N as first nuts and washers 46W, 47W as first washers. The nuts (46N, 47N, 48N, 49N) are screwed onto the threaded reinforcing bar 45. The washers 46W, 47W have a rectangular plate shape larger than the through-hole area A1 and have a through-hole into which the threaded reinforcing bar 45 fits loosely. This through-hole is smaller than the outer diameter of the nuts 46N, 47N and is large enough to lock the nuts 46N, 47N. Therefore, the nuts 46N, 47N are placed above and below the lower column mounting member 41a through which the threaded reinforcing bar 45 has been inserted, via washers 46W, 47W, respectively. By tightening the nuts 46N, 47N to the lower column mounting member 41a, the threaded reinforcing bar 45 is fixed to the lower column mounting member 41a in a state where it extends vertically.

[0032] A washer 48W is placed on the positioning nut 48N. Furthermore, the upper pole mounting member 41b described above is placed on the washer 48W. Like washers 46W and 47W, washers 48W and 49W have a rectangular plate shape larger than the penetration area A1 and have a through-hole into which the threaded reinforcing bar 45 fits loosely. This through-hole is smaller than the outer diameter of the nuts (48N and 49N) and is large enough to lock the nuts (48N and 49N). Washer 49W and nut 49N correspond to the second washer and second nut, respectively. When fixing the lower column 21 and the upper column 22, the nut 49N and the positioning nut 48N are placed above and below the upper column mounting member 41b through which the threaded reinforcing bar 45 has been inserted, via washers 49W and 48W, respectively. The nuts (48N and 49N) are then tightened to the upper column mounting member 41b, thereby fixing the upper column mounting member 41b to the threaded reinforcing bar 45.

[0033] (Erection work) Next, the erection work (step S1) will be described with reference to FIG. As shown in Fig. 10(a), two lifting jigs 30 are attached to the upper end of the upper column 22, which has been transported in a horizontal position from the factory by truck or the like. In this embodiment, the lifting jigs 30 are attached to two opposing surfaces of the upper column 22. A beam 23 is fixed to the center of the upper column 22.

[0034] In this case, an upper pole mounting member 41b is attached to the lower end of each of the four faces of the upper pole 22. The upper pole mounting member 41b may be attached to the upper pole 22 at the factory. The two lifting jigs 30 are then connected by wire to a beam balance 26 that is spaced apart at a distance greater than the width (horizontal length) of the upper pillar 22. Furthermore, the end of the wire 25 provided on the beam balance 26 is hooked onto a crane hook (not shown). Then, as shown in FIG. 10(b), the hook of the crane is lifted up to erect the upper pillar 22. In this case, the lower end of the upper pillar 22 may be pulled downward while hanging from the hook of a crane via a nylon sling or the like.

[0035] (Installation of lower column mounting components, threaded reinforcing bars and positioning nuts) Next, the installation work (step S2) of the lower column mounting member, the threaded reinforcing bar, and the positioning nut will be described with reference to FIG.

[0036] First, as shown in Figure 11(a), the lower column mounting member 41a of the column connecting jig 40 is attached to the lower column 21. Specifically, the plate member 42 of the lower column mounting member 41a is positioned at the center of the upper end of each of the four faces of the lower column 21. In this case, the plate member 42 is positioned above the side hole 21ah of the lower column 21. Then, the screw 44 inserted into the through hole 42h of the plate member 42 is screwed into the lower column 21.

[0037] Next, as shown in Figure 11(b), the lower part of the threaded reinforcing bar 45 is fixed to the lower column mounting member 41a. Specifically, first, the nut 47N is screwed onto the threaded reinforcing bar 45 and placed around the center of the threaded reinforcing bar 45. Then, with the washer 47W inserted from below the threaded reinforcing bar 45, the lower part of the threaded reinforcing bar 45 is inserted from above into the penetration area A1 of the lower column mounting member 41a.

[0038] As a result, washer 47W, located below nut 47N, is placed on top of the lower column mounting member 41a. Furthermore, this washer 47W is locked by the nut 47N, so that the threaded reinforcing bar 45 is installed vertically relative to the lower column mounting member 41a. Next, washer 46W is inserted from below the threaded reinforcing bar 45, and nut 46N is screwed onto the threaded reinforcing bar 45. Then, nuts 46N and 47N are tightened onto the protrusion 43 of the lower column mounting member 41a with washers 46W and 47W interposed between them. As a result, the threaded reinforcing bar 45 is fixed to the lower column mounting member 41a while extending vertically.

[0039] 11(c), the positioning nut 48N is screwed onto the threaded reinforcing bar 45 from above. Then, the washer 48W is inserted from above the threaded reinforcing bar 45 and placed on the positioning nut 48N. Then, the height of the positioning nut 48N on the threaded reinforcing bar 45 is adjusted so that the upper surface of the washer 48W is at an installation height H4 from the upper surface of the protrusion 43 of the lower column mounting member 41a.

[0040] Here, the installation height H4 is the sum of the height H1 from the upper surface of the protrusion 43 of the lower column mounting member 41a to the upper surface of the lower column 21, the height H2 from the bottom surface of the upper column 22 to the lower surface of the protrusion 43 of the upper column mounting member 41b, and the gap H3 between the lower column 21 and the upper column 22, as shown in Figure 12(b).

[0041] (Erection work) Next, the erection work (step S3) will be described with reference to FIG. As shown in Figure 12(a), the erected upper column 22 is moved above the lower column 21 and lowered. In this case, the upper column 22 is positioned so that the connecting bar 22a of the upper column 22 corresponds to the upper part of the hole 21a of the lower column 21, and the penetration area A1 of the protrusion 43 of the upper column mounting member 41b of the upper column 22 corresponds to the upper part of the screw reinforcing bar 45.

[0042] 12(b), the upper column 22 is lowered. In this case, the connecting bar 22a of the upper column 22 is inserted into the hole 21a of the lower column 21, and the threaded reinforcing bar 45 is passed through the penetration area A1 of the protrusion 43 of the upper column mounting member 41b of the upper column 22.

[0043] Next, a washer 49W is inserted into the threaded reinforcing bar 45 from above. Then, a nut 49N is screwed onto the threaded reinforcing bar 45 from above this washer 49W and moved downward. Next, the nut 49N is loosely tightened onto the upper surface of the protrusion 43 of the upper column mounting member 41b via the washer 49W. As a result, the upper column 22 is temporarily fixed to the lower column 21 via the upper column mounting member 41b, the threaded reinforcing bar 45, and the lower column mounting member 41a.

[0044] (Cylinder surface alignment jig) Next, the column surface alignment jig J1 will be described with reference to FIGS. FIG. 13 is a perspective view of the hanging plate 50 of the column surface alignment jig J1, and FIGS. 14 and 15 are a perspective view and a top view of the column surface alignment jig J1 installed on a column.

[0045] This column surface alignment jig J1 includes a retaining plate 50 and a pressing jig 60 shown in FIGS. As shown in Figure 13, the hanging plate 50 has a plate-shaped main body 51. The central part of the main body 51 has a width shorter than the distance from the lower column mounting member 41a to the upper column mounting member 41b. One end of the main body 51 is formed with a tip 55 that is bent at 90 degrees, and the other end of the main body 51 is formed with a fixing part 52 that is wider than the central part. The tip 55 is a hanging surface that protrudes at a right angle from the main body 51.

[0046] The fixing portion 52 has screw holes 53, 54 spaced apart in pairs near each of the four corners. The screw holes 53, 54 are provided at positions spaced apart by distances L53, L54, respectively, from the tip portion 55. As will be described later, the distances L53, L54 are the positions of the screw holes 53, 54 into which bolts 62 that secure the pressing jig 60 are threaded when the tip portion 55 is hooked onto the first surface f1 of the column and the third surface f3 that is perpendicular to the first surface f1, respectively, and are provided to correspond to the vertical and horizontal lengths of the upper column 22 in the horizontal plane.

[0047] 14, for example, a product name "Pitakai Mini (Single)" manufactured by R.I. Co., Ltd. is used as the pressing jig 60. This pressing jig 60 includes a nut member 61, a bolt 62, a threaded rod member 63, and a pressing plate 64.

[0048] The nut member 61 is fixed integrally to the threaded hole 53 (or threaded hole 54) of the hanging plate 50 by a bolt 62. The threaded shaft of the threaded rod member 63 is screwed into the internal thread at the center of the nut member 61. A pressing plate 64 is provided at the tip of the threaded rod member 63.

[0049] (Column surface alignment work) Next, the column surface alignment work (step S5) using the column surface alignment jig described above will be explained using Figures 14 to 16. Here, first, the column surfaces in the short direction of the column (the first surface f1 and the second surface f2 opposite the first surface f1) are aligned. Note that Figure 16(a) shows the state before the column surface alignment work is performed, and Figure 16(b) shows the state after the column surface alignment work is completed. Note that in Figure 16, the thickness of the tip end 55 of the hanging plate 50 and the hanging buffer plate 57, and the gap between the hanging plate 50 and the upper column 22 are exaggerated for the sake of explanation.

[0050] As shown in Figures 14 and 15, two hanging plates 50 are arranged opposite each other so that the tip portions 55 of the hanging plates 50 are hooked onto the first surface f1. Here, a hanging buffer plate 57 having a larger area than the tip portions 55 is arranged between the tip portions 55 and the pillars (21, 22). Here, the main body portion 51 of each hanging plate 50 is abutted against two opposing surfaces (third surface f3 and fourth surface f4) between the plate member 42 of the lower pillar mounting member 41a and the plate member 42 of the upper pillar mounting member 41b, so as to straddle from the upper end of the lower pillar 21 to the lower end of the upper pillar 22. In this case, the fixing portion 52 of the hanging plate 50 protrudes toward the second surface f2.

[0051] Then, the pressing jig 60 is fixed to the hanging plate 50. Specifically, the pressing plate 64 of the pressing jig 60 is brought into contact with the pressing buffer plate 58. The pressing buffer plate 58 has a larger area than the pressing plate 64 of the pressing jig 60, and comes into contact with the upper end of the lower column 21 and the lower end of the upper column 22. Then, the nut member 61, onto which the threaded rod member 63 is threaded, is fixed to the screw hole 53 of the hanging plate 50 via the bolt 62.

[0052] After the latch plate 50 and the pressing jig 60 have been positioned as described above, the threaded shaft of the threaded rod member 63 is rotated to move the threaded rod member 63 forward relative to the nut member 61. 16(a), the movable upper pillar 22 moves (slides) horizontally relative to the lower pillar 21. Then, as shown in FIG. 16(b), the first surface f1 of the upper pillar 22 moves to a position where it abuts against the latching buffer plate 57, and becomes flush with the first surface f1 of the lower pillar 21.

[0053] Thereafter, the pressing jig 60 and the retaining plate 50 are removed. Next, column surface alignment is performed in the same manner for the third surface f3 and the fourth surface f4, which are perpendicular to the first surface f1. In this case, the tip 55 of the hanging plate 50 is hooked onto the third surface f3 via the hanging buffer plate 57, and the two hanging plates 50 are brought into contact with the two opposing surfaces (the first surface f1 and the second surface f2), respectively. Then, a pressing jig 60 is fixed with a bolt 62 to the screw hole 54 of the fixing part 52 protruding toward the fourth surface f4. Thereafter, the threaded rod member 63 of the pressing jig 60 is rotated to move the upper column 22 horizontally relative to the lower column 21, and the third surface f3 of the upper column 22 is aligned so that it is flush with the third surface f3 of the lower column 21.

[0054] (Plumbing adjustment work) Next, the plumbing adjustment work (step S6) using the pillar connecting jig 40 described above will be described. By the column surface alignment work (step S5), the columns (21, 22) are made flush with each other within the range of the tip end 55 of the hanging plate 50 and the pressing plate 64 of the pressing jig 60 via the buffer plates (57, 58). In this case, if the upper column 22 is tilted relative to the lower column 21, which is fixed vertically, plumbing adjustment work is performed.

[0055] Specifically, after loosening the positioning nut 48N and nut 49N of the pillar connecting jig 40 provided on the surface of the side where the upper pillar 22 has fallen, the positioning nut 48N is raised. Furthermore, after loosening the positioning nut 48N and nut 49N of the pillar connecting jig 40 provided on the surface opposite the surface where the upper pillar 22 has fallen, the positioning nut 48N is lowered. Here, the amount of lift and lowering of the positioning nut 48N of the pillar connecting jig 40 provided on the opposing surface is adjusted within the allowable range of the size of the gap H3 between the lower pillar 21 and the upper pillar 22. As a result, the tilt of the upper pillar 22 is re-erected vertically, thereby adjusting to eliminate the tilt of the upper pillar 22. After the adjustment of the inclination of the upper column 22 is completed, the loosened positioning nuts 48N and 49N are tightened to the upper column mounting member 41b to fix the upper column 22 to the lower column 21.

[0056] (action) The tip of the threaded reinforcing bar 45 is inserted into the penetration area A1 of the protrusion 43 of the upper column mounting member 41b, and the upper column mounting member 41b is fixed onto the positioning nut 48N via a washer 48W. This allows the lower column mounting member 41a and the upper column mounting member 41b to be temporarily fixed in the up-and-down direction using the threaded reinforcing bar 45 that extends vertically and has a gap in the horizontal direction, and then fine adjustments can be made, allowing the upper column 22 to be aligned on the lower column 21.

[0057] The lifting jig 30 is fixed to the upper end of the wooden upper pillar 22 with screws that pass through the multiple mounting holes 31h of the fixing plate 31. This allows the lifting jig 30 to be attached to the upper pillar 22 via the small mounting holes 31h of the fixing plate 31.

[0058] The column surface alignment jig J1 includes a hanging plate 50 and a pressing jig 60. The hanging plate 50 has a tip 55 that hooks onto the first surface f1 of the column (21, 22). The pressing jig 60 is fixed to the hanging plate 50 and presses the second surface f2 that faces the first surface f1. As a result, the columns (21, 22) are pressed with the first surface f1 and the second surface f2 sandwiched between them, and the slidable upper column 22 slides to eliminate the gap between the first surface f1 and the second surface f2, allowing the surfaces of the lower column 21 and the upper column 22 to be aligned.

[0059] According to this embodiment, the following effects can be obtained. (1) In this embodiment, the lower column mounting members 41a and upper column mounting members 41b provided on the outer peripheries of the wooden lower column 21 and upper column 22 are connected by threaded reinforcing bars 45 fixed so as to extend vertically. As a result, even if the wooden lower column 21 and upper column 22 are not provided with erection pieces, they can be easily positioned and the lower column 21 and upper column 22 can be efficiently temporarily fixed.

[0060] (2) In this embodiment, the lower post mounting member 41a and the upper post mounting member 41b comprise plate-shaped plate members 42 having a plurality of through holes 42h. The lower post mounting member 41a and the upper post mounting member 41b are fixed to the lower post 21 and the upper post 22 by screws 44 that pass through the through holes 42h. This makes it possible to fix the lower post mounting member 41a and the upper post mounting member 41b without drilling large holes in the wooden lower post 21 and upper post 22.

[0061] (3) In this embodiment, a positioning nut 48N is fixed at the installation height H4 above the threaded reinforcing bar 45. The upper column mounting member 41b of the upper column 22 is fixed on top of the positioning nut 48N via a washer 48W. This allows the upper column 22 to be temporarily fixed at the installation height H4.

[0062] (4) In this embodiment, the threaded reinforcing bar 45 is fixed to the lower column mounting member 41a so as to extend vertically. Then, the positioning nut 48N is screwed onto the threaded reinforcing bar 45. This allows the positioning nut 48N to be fixed at any position on the threaded reinforcing bar 45, and the upper column 22 can be efficiently temporarily fixed at any height relative to the lower column 21.

[0063] (5) In this embodiment, nuts 47N and 46N are screwed onto the top and bottom of the lower column mounting member 41a of the threaded reinforcing bar 45 via washers 47W and 46W. Furthermore, a nut 49N is screwed onto the top of the upper column mounting member 41b of the threaded reinforcing bar 45 via a washer 49W. Therefore, by tightening the nuts (46N, 47N, 48N, 49N), the threaded reinforcing bar 45 can be efficiently fixed to the lower column mounting member 41a and the upper column mounting member 41b.

[0064] (6) In this embodiment, the lower column mounting member 41a and the upper column mounting member 41b have protrusions 43 that define a penetration area A1 having a gap through which the inserted threaded reinforcing bar 45 can move during adjustment. As a result, the threaded reinforcing bar 45 can temporarily fix the vertical position of the upper column 22 relative to the lower column 21, and can also be easily moved in the vertical and horizontal directions, making it easy to align the column surfaces and adjust the plumbing.

[0065] (7) In this embodiment, the lower post mounting member 41a includes a horizontally long plate member 42. This reduces the risk that the side hole 21ah of the lower post 21 will be hidden by the plate member 42 of the lower post mounting member 41a.

[0066] (8) In this embodiment, the column connecting jig 40 is provided at the center of each face of the columns (21, 22). This allows for efficient plumbing adjustment of the upper column 22 by adjusting the angle of the threaded reinforcing bar 45 of the column connecting jig 40 and the height of the positioning nut 48N.

[0067] (9) In this embodiment, a lifting jig 30 is provided on the upper end of the upper column 22, and the upper column 22 is lifted and erected (step S1). The lifting jig 30 is configured by attaching an eyebolt 35 to a fixed plate 31 via a protruding member 32. The lifting jig 30 is attached to the upper column 22 by passing screws through multiple mounting holes 31h in the fixed plate 31. This allows the lifting jig 30 to be attached to the upper column 22 without drilling large holes in the upper column 22.

[0068] (10) In this embodiment, the two lifting jigs 30 are connected by wires to the beam balance 26, which is spaced apart more widely than the upper pillars 22. Furthermore, the end of the wire 25 provided on the beam balance 26 is hooked onto the hook of a crane. This prevents the wire hooked onto the lifting jig 30 from coming into contact with the corners of the upper pillars 22.

[0069] (11) In this embodiment, the tip 55 of the hanging plate 50 is hooked onto the first surface f1, and the two hanging plates 50 are arranged opposite each other. Then, a pressing jig 60 is attached to the hanging plates 50, and the pressing plate 64 of the pressing jig 60 presses the lower column 21 and the upper column 22, causing the movable upper column 22 to slide. This makes it possible to efficiently align the column surfaces of the lower column 21 and the upper column 22.

[0070] (12) In this embodiment, the hanging plate 50 has screw holes 53, 54 at positions distances L53, L54 from the tip 55. As a result, even if the cross sections of the lower column 21 and the upper column 22 are rectangular, the same hanging plate 50 can be used to align the respective faces (f1, f2, f3, f4) of the vertical and horizontal columns (21, 22) flush with each other. Furthermore, the main body 51 of the hanging plate 50 has a narrower portion that abuts against the columns (21, 22) than the fixing portion 52 in which the screw holes 53, 54 are formed. As a result, the weight of the hanging plate 50 can be reduced, and the main body 51 can abut against the columns (21, 22) between the lower column mounting member 41a and the upper column mounting member 41b.

[0071] (13) In this embodiment, a hanging buffer plate 57 is disposed between the tip 55 of the hanging plate 50 and the pillars (21, 22), and a pressing buffer plate 58 is disposed between the pressing plate 64 of the pressing jig 60 and the pillars (21, 22). By inserting the wide-area hanging buffer plate 57 or pressing buffer plate 58 between the pillars (21, 22), the force is distributed and transmitted to the temporarily fixed pillars (21, 22), which makes it possible to prevent the tip 55 of the hanging plate 50 or the pressing plate 64 of the pressing jig 60 from sinking into the pillars (21, 22).

[0072] This embodiment can be modified as follows: This embodiment and the following modifications can be combined and implemented within the scope of technical compatibility. In the above embodiment, the lifting jig 30 includes a protruding member 32 having a bolt hole 32b into which the shank 36a of the bolt 36 of the eyebolt 35 screws, and a fixed plate 31 into which the protruding portion 32a of the protruding member 32 fits. The lifting jig 30 may be any device for lifting the upper column 22 to position the upper column 22 above the lower column 21, and the configuration is not limited to this. For example, if the thickness of the protruding member is longer than the length of the shank 36a of the bolt 36 of the eyebolt 35, the protruding member 32 may be welded to the fixed plate 31 without providing the protruding portion 32a on the protruding member 32. Furthermore, the configuration of the eyebolt 35 of the lifting jig 30 is not limited to the above configuration, and a non-rotating eyebolt may be used.

[0073] In the above embodiment, the lifting jig 30 is attached to the upper pillar 22. However, the wooden structural element that the lifting jig 30 lifts is not limited to a pillar. For example, the lifting jig 30 may be used to lift a wooden floor or beam.

[0074] In the above embodiment, plumbing adjustment is performed (step S6). In this case, a plumbing adjustment jig may be used. As shown in FIG. 17 , the plumbing adjustment jig includes, for example, an inclination adjustment plate 73 provided in the center of the underside of the upper column 72, and an insert 75 and a level bolt 76 embedded in the upper surface of the lower column 71. The insert 75 is a cylindrical member that functions as a support member for the level bolt 76. The insert 75 has an internal thread extending in the direction of the central axis. The level bolt 76 has a shaft 76a and a curved head 76b that protrudes upward. The shaft 76a of the level bolt 76 screws into the internal thread of the insert 75. The head 76b of the level bolt 76 abuts against the inclination adjustment plate 73. The inclination angle of the upper column 72 can be efficiently adjusted by adjusting the abutment angle of the inclination adjustment plate 73 relative to the level bolt 76. In addition, since the shaft 76a of the level bolt 76 is embedded in the lower column 71 via a large-area insert 75, it is possible to prevent the level bolt 76 from being embedded in the lower column 71 while crushing it due to the pressing force of the upper column 72.

[0075] In the above embodiment, the upper part of the connecting bars 22a is buried in the upper column 22 at the factory. The connecting bars 22a buried in the upper column 22 and the lower column 21 are not limited to being fixed to the upper column 22 in advance. For example, holes may be drilled in the upper column, connecting bars may be placed in the upper and lower columns at the site, and the connecting bars may be fixed to the upper and lower columns using adhesive. Alternatively, connecting bars may be buried in the lower column, passed through holes formed in the upper column, and fixed to the upper column with adhesive.

[0076] In the above embodiment, the hanging plate 50 of the column surface alignment jig J1 includes a fixing portion 52 having screw holes 53, 54 formed therein at positions spaced apart from the tip 55 by distances L53, L54, respectively. The shape of the hanging plate 50 is not limited to this. For example, if the lengths of the two horizontal axes of the columns (21, 22) are approximately the same, the hanging plate 50 may have a fixing portion 52 with a pair of screw holes 53 spaced apart from the tip 55 by the distance L53. Furthermore, although the fixing portion 52 is wider than the main body 51, the width of the main body 51 may be the same as that of the fixing portion 52, or the tip 55 may be larger. In the latter case, the hanging buffer plate 57 may be omitted depending on the contact area of ​​the tip 55 of the hanging plate 50 with the column (21, 22).

[0077] In the above embodiment, a threaded reinforcing bar 45 is used as the rod-shaped member extending in the vertical direction and provided in the column connecting jig 40. The rod-shaped member is not limited to a threaded reinforcing bar with threads formed from end to end, but may also be a deformed reinforcing bar with a spirally threaded portion. Furthermore, it may also be a rod-shaped member without a thread. In this case, the column connecting jig 40 is provided with a mechanism for fixing a positioning member that can be freely attached to the rod-shaped member in the vertical direction.

[0078] In the above embodiment, the pillar connecting jig 40 is attached to each surface (four surfaces) of the pillar. The attachment positions of the pillar connecting jig 40 are not limited to attaching it to each surface. For example, two pillar connecting jigs 40 may be placed on two opposing surfaces, spaced apart from each other.

[0079] In the above embodiment, the lower column mounting member 41a and the upper column mounting member 41b of the column connecting jig 40 include a horizontally long rectangular plate member 42 and a protrusion 43 composed of an L-shaped portion 43a and an S-shaped portion 43b. The configuration of the lower column mounting member 41a and the upper column mounting member 41b is not limited to this.

[0080] For example, a pillar connecting jig as shown in Fig. 18 may be used. Fig. 18(a) to (c) show an overall view of the pillar connecting jig, and a perspective view and a top view of a lower pillar mounting member 91a. The pillar connecting jig shown in FIG. 18(a) has a lower pillar mounting member 91a and an upper pillar mounting member 91b having the same shape as the lower pillar mounting member 41a and the upper pillar mounting member 41b.

[0081] 18(b) and 18(c), the lower post mounting member 91a has a vertically long rectangular plate member 92 with a plurality of through holes 92h formed therein. Furthermore, the lower post mounting member 91a may have a protrusion 93 formed by bending the plate member into a convex shape to define the through area A1, which is fixed to the center of the plate member 92 by welding.

[0082] Furthermore, the shape of the protrusion is not limited to a shape that defines the penetration area A1 having a substantially rectangular horizontal cross section, but may be any shape that defines the shape of the penetration area having a gap that allows the threaded reinforcing bar 45 to be adjusted horizontally. Therefore, the shape of the protrusion may be a shape that defines the penetration area having a substantially circular horizontal cross section.

[0083] Next, the technical ideas that can be understood from the above-described embodiment and other examples will be described below. (a) A pillar construction method for connecting a wooden upper pillar and a wooden lower pillar, The upper pillar is hung and erected by a hanging jig attached to the upper pillar, and moved and positioned above the lower pillar; Using a pillar connecting jig, adjust the inclination of the upper pillar relative to the lower pillar; A pillar construction method characterized by using a pillar surface alignment jig to align the pillar surfaces of the upper pillar and the lower pillar. (b) A pillar construction method in which a wooden upper pillar and a wooden lower pillar are connected to each other via a connecting bar between the upper pillar and the lower pillar, The upper pillar is hung and erected by a hanging jig attached to the upper pillar, and moved and positioned above the lower pillar; A positioning member is attached to the installation height of the upper column, and a rod-shaped member fixed to the outer periphery of the lower column so as to extend vertically is passed through the upper column mounting member attached to the outer periphery of the upper column, and the upper column mounting member is temporarily fixed to the rod-shaped member, thereby temporarily fixing the upper column to the lower column at a height corresponding to the installation height while arranging connecting bars between the upper column and the lower column, The column surfaces of the lower column and the upper column are aligned using a column surface alignment jig, and the upper column mounting member and the rod-shaped member are fixed together; A pillar construction method characterized by fixing the connecting reinforcement to at least one of the upper pillar and the lower pillar with adhesive.

[0084] (c) A threaded reinforcing bar is used as the rod-shaped member, a positioning nut is used as the positioning member, and a plate-shaped member having a protrusion that opens in the vertical direction and defines a penetration area for inserting the threaded reinforcing bar is used as the upper column mounting member, The temporary fixation is After the threaded reinforcing bar is passed through the penetration area of ​​a lower column mounting member that has the same configuration as the upper column mounting member and is attached to the outer periphery of the lower column, the threaded reinforcing bar is fixed to the lower column mounting member using first nuts that are arranged above and below the protrusions of the threaded reinforcing bar via first washers, The positioning nut is inserted into the threaded reinforcing bar from above and fixed at the installation height, The upper column is lowered while inserting the threaded reinforcing bar into the upper column mounting member, and the upper column mounting member is positioned on the positioning nut; A column construction method as described in (a) or (b), characterized in that a second washer and a second nut are inserted into the threaded reinforcing bar from above, and the position of the upper column mounting member is temporarily fixed by the second nut and the positioning nut.

[0085] (d) A lifting jig used to lift a wooden pillar using a lifting device, a fixing plate having a plurality of through holes through which screws embedded in the pillars pass and abutting against the outer periphery of the pillars; an eyebolt disposed to extend perpendicular to the mounting surface of the fixing plate; a protruding member that is threadably engaged with the eyebolt and fixed to the fixing plate, The lifting jig is characterized in that the protruding member has a length that allows the shaft portion of the eye bolt to be accommodated therein.

[0086] (e) A pillar connecting jig used to fasten a wooden upper pillar and a wooden lower pillar, A lower column mounting member attached to the outer periphery of the lower column; a rod-shaped member whose lower portion is fixed to the lower column mounting member; a positioning member arranged on the rod-shaped member so as to be height-adjustable; an upper pole mounting member attached to the outer periphery of the upper pole; A pillar connecting jig characterized by comprising an upper pillar fixing member that fixes the upper pillar mounting member to the rod-shaped member.

[0087] (f) A column surface alignment jig used to align the column surfaces of a wooden lower column and a wooden upper column placed on the lower column, a plate-shaped main body portion longer than the length of a first surface that aligns the column surfaces of the upper column and the lower column and a third surface that is perpendicular to the second surface facing the first surface; and a hanging plate having a hanging surface portion that is perpendicular to the main body portion; a pressing member fixed to the main body portion, The hooking surface portion is hooked onto the first surfaces of the upper column and the lower column, and the hooking plate is arranged so as to straddle the upper column and the lower column; The pressing member is fixed to a portion of the retaining plate that protrudes toward the second surface, A column surface alignment jig characterized in that the column surface alignment is performed by pressing with the pressing member to move the upper column relatively to the lower column in a horizontal direction.

[0088] (g) A plumbing adjustment jig used to adjust the plumbing between a wooden upper column and a wooden lower column, characterized in that it comprises a level bolt with an upwardly convex curved surface provided in the center of the upper surface of the lower column, a support member that supports the level bolt, and an inclination adjustment plate provided on the bottom surface of the upper column. [Explanation of symbols]

[0089] A1...penetration area, f1...first surface, f2...second surface, f3...third surface, H1, H2...height, H3...gap, H4...installation height, J1...column surface alignment jig, L1...length, T1...plate thickness, T2...thickness, W1...periphery, L53, L54...distance, 21, 71...lower column, 21a...hole, 21ah...side hole, 22, 72...upper column, 22a...connecting bar, 23...beam, 25...wire , 26... beam balance, 30... hanging jig, 31... fixing plate, 31a, 42h, 92h... through hole, 31f... mounting surface, 31h... mounting hole, 32... protruding member, 32a, 43, 93... protrusion, 32b... bolt hole, 35... eye bolt, 36, 62... bolt, 36a, 76a... shaft portion, 37... rotating mounting portion, 38... ring portion, 40... pillar connecting jig, 41a, 91a... lower pillar Mounting members, 41b, 91b...upper column mounting members, 42, 93...plate members, 43a...L-shaped portion, 43b...S-shaped portion, 44...screw, 45...threaded reinforcing bar as rod-shaped member, 46N, 47N...nut as first nut, 46W, 47W...washer as first washer, 48N...positioning nut as positioning member, 48W...washer, 49N...nut as second nut, 49W...washer as second washer, 50...hanging plate, 51...main body, 52...fixing portion, 53, 54...screw hole, 55...tip portion as hanging surface portion, 57...hanging buffer plate, 58...pressure buffer plate, 60...pressure jig, 61...nut member, 63...threaded rod member, 64...pressure plate, 73...tilt adjustment plate, 75...insert, 76...level bolt, 76b...head.

Claims

1. A pillar construction method for connecting a wooden upper pillar and a wooden lower pillar, The upper pillar is hung and erected by a hanging jig attached to the upper pillar, and moved and positioned above the lower pillar; The upper column is temporarily fixed to the lower column by temporarily fixing the upper part of a rod-shaped member, the lower part of which is fixed to a lower column mounting member attached to the outer periphery of the lower column, to the upper column mounting member attached to the outer periphery of the upper column; A level bolt having an upwardly convex curved surface and an insert embedded in the lower column has a built-in shaft, and is provided at the center of the upper surface of the lower column. The level bolt is brought into contact with the level bolt, and the inclination angle relative to the inclination adjustment plate provided on the bottom surface of the upper column is adjusted, thereby adjusting the plumbing between the wooden upper column and the wooden lower column. A pillar construction method characterized in that after the adjustment of the inclination of the upper pillar is completed by the plumbing adjustment, the upper pillar is fixed to the lower pillar.

2. An adjustment jig used to adjust the plumbing of a wooden upper column and a wooden lower column, a level bolt provided at the center of the upper surface of the lower column and having an upwardly convex curved surface; and an insert incorporating the shaft of the level bolt; an inclination adjustment plate provided on the bottom surface of the upper column; A lower column mounting member attached to the outer periphery of the lower column; a rod-shaped member whose lower portion is fixed to the lower column mounting member; an upper column mounting member attached to the outer periphery of the upper column and fixing the rod-shaped member thereto.

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