Support jig for column members and method for supporting column members

Abstract

To provide a support jig and a support method for column members that improve work efficiency and enable precise positioning. [Solution] The support jig 1 supports a column member P, which is attached to a beam member B at a predetermined inclination angle, by positioning it at the predetermined inclination angle relative to the beam member B. The support jig 1 comprises a base member 2 attached to the beam member B and having a mounting surface 2a facing the surface of the beam member B; a positioning member 3 extending upward from the base member 2 and determining the mounting position of the column member P; and an angle adjustment member 4 adjusting the angle of the positioning member 3 with respect to the base member 2. The positioning member 3 has a contact surface 3a for contacting and supporting the column member P. The angle adjustment member 4 holds the positioning member 3 so that the angle of the contact surface 3a with respect to the mounting surface 2a becomes a predetermined inclination angle.

Description

Technical Field

[0001] The present invention relates to a support jig for a column member and a method for supporting a column member, and particularly to a support jig for a column member and a method for supporting a column member for positioning and supporting a column member attached to a beam member at a predetermined inclination angle with respect to the beam member at the inclination angle with respect to the beam member.

Background Art

[0002] Generally, when joining a plurality of building members, it is required to accurately position one of the joining members with respect to the other member. For example, in Patent Document 1, when joining a plurality of building members (for example, a column member and a beam member), a guide roller is provided on the beam member to correct the positional deviation of the beam member with respect to the column member, and a positioning method for accurately setting the building members is disclosed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] For example, when constructing a single-slope roof, an operation of joining a column member (specifically, a parapet column or the like) to a beam member is performed. Conventionally, the column member is lifted using a crane, and in a state where the column member is suspended by the crane, the column member and the beam member are temporarily welded so that the column member has a predetermined inclination angle with respect to the beam member. Thus, when attaching the column member to the beam member at a predetermined inclination angle, it is necessary to support the column member in an inclined state by the crane, so it is difficult to accurately support the inclination angle. In addition, since it is necessary to adjust the attachment position and the attachment angle by the crane, there is also a possibility that the working time will be significantly increased.

[0005] The present invention has been made in view of the above-mentioned problems, and the object of the present invention is to provide a support jig and a method for supporting a column member that can improve work efficiency and position with high precision. [Means for solving the problem]

[0006] The aforementioned problem is solved by the column member support jig of the present invention, which is for positioning and supporting a column member, which is attached to a beam member at a predetermined inclination angle, at the predetermined inclination angle with respect to the beam member, comprising: a base member attached to the beam member and having a mounting surface facing the surface of the beam member; a positioning member extending up from the base member and determining the mounting position of the column member; and an angle adjustment member adjusting the angle of the positioning member with respect to the base member, wherein the positioning member has a contact surface for contacting and supporting the column member, and the angle adjustment member holds the positioning member so that the angle of the contact surface with respect to the mounting surface becomes the predetermined inclination angle.

[0007] With the above configuration, by attaching the support jig to the beam member and maintaining the angle of the contact surface with respect to the mounting surface at a predetermined inclination angle, the angle of the column member relative to the beam member can be accurately determined simply by bringing the column member into contact with the support jig. Therefore, it becomes unnecessary to tilt and support the column member with a crane, improving work efficiency. In addition, since the angle can be adjusted before supporting the column member, it is possible to easily position it while improving the accuracy of the inclination angle. Therefore, it improves work efficiency and allows for precise positioning.

[0008] In this case, the angle adjustment member rotatably holds the positioning member with respect to the base member, and includes a rotating holding portion extending upward from the base member and holding the positioning member, a rotating shaft that holds the positioning member with respect to the rotating holding portion, and an angle fixing portion attached to the positioning member and fixing the angle of the positioning member with respect to the rotating holding portion. The rotating holding portion has an elongated hole that penetrates in the direction in which the rotating shaft extends and is elongated in the direction in which the positioning member rotates, and the angle fixing portion is configured to be movable between the elongated holes, thereby fixing the positioning member at the predetermined inclination angle. With the above configuration, the tilt angle can be adjusted simply by rotating the positioning member relative to the base member, thus enabling easy positioning while improving the accuracy of the tilt angle. In particular, since the angle fixing part moves along the elongated hole, the angle can be adjusted steplessly.

[0009] In this case, the positioning member has an arm portion extending upward from the base member, a contact portion provided on the arm portion and having the contact surface, and a horizontal positioning portion provided on the arm portion that determines the horizontal position of the column member in the width direction of the beam member, and the horizontal positioning portion has a mounting portion provided on the arm portion, and a horizontal contact portion attached to the mounting portion that contacts the column member from the width direction of the beam member to determine the horizontal position, and the horizontal contact portion is preferably attached so as to be movable in the horizontal direction relative to the mounting portion. With the above configuration, the mounting position of the column member can be determined simply by bringing the side of the column member into contact with the tip of the screw portion. Furthermore, since the position of the screw portion is adjustable horizontally, the mounting position of the column member can be easily adjusted.

[0010] In this case, the positioning member has an arm portion extending upward from the base member, a contact portion provided on the arm portion and having the contact surface, a horizontal positioning portion provided on the arm portion and determining the horizontal position of the column member in the width direction of the beam member, and a holding portion for holding the column member supported by the contact surface, wherein the holding portion, together with the horizontal positioning portion, is capable of clamping the column member supported by the contact surface from the width direction of the beam member. The above configuration increases the support force of the positioning member on the column member. In particular, since the column member can be clamped from the width direction of the beam member, horizontal displacement can be suppressed.

[0011] In this case, the positioning member has an arm portion extending upward from the base member, and a contact portion provided on the arm portion and having a contact surface, wherein the contact portion protrudes from the arm portion in the contact direction in which the contact surface contacts the column member, and when the contact surface is perpendicular to the mounting surface of the base member, the ends of the contact surface and the mounting surface are preferably in the same position in the contact direction. With the above configuration, the column member can be accurately positioned relative to the beam member simply by aligning the front end of the mounting surface with the reference line that serves as the target for the mounting position.

[0012] In this case, the base member has a main body portion that extends along the width direction of the beam member and has the mounting surface, a guide portion provided at one end of the main body portion in the extending direction and capable of contacting the beam member, and a fixing portion provided at the other end of the main body portion in the extending direction and fixing the main body portion to the beam member, wherein the guide portion extends along the length direction of the beam member and contacts one end of the beam member in the width direction from the side, and the fixing portion fixes the main body portion to the beam member with the guide portion in contact with the one end of the beam member. With the above configuration, the mounting position of the support jig on the beam member can be easily determined by bringing the guide portion into contact with the beam member.

[0013] In this case, the main body portion has an elongated through hole in the direction of extension of the main body portion, and the fixing portion is slidably inserted into the through hole, and the main body portion is fixed to the beam member at a position corresponding to the length of the beam member in the width direction. With the above configuration, the support jig can be easily attached to beam members of various widths.

[0014] Furthermore, the above-mentioned problems are solved by the column member support method of the present invention, which is a method for supporting a column member in which a column member is positioned and supported with respect to a beam member at a predetermined inclination angle using a support jig, and includes an attachment step of attaching the support jig, which comprises a base member to be attached to the beam member and a positioning member for determining the position of the column member, to the beam member; an angle adjustment step of adjusting the angle of the positioning member with respect to the base member; and a support step of supporting the column member with respect to the contact surface of the positioning member, wherein in the attachment step, the attachment surface of the base member is attached so as to face the surface of the beam member; in the angle adjustment step, the positioning member is held with respect to the base member so as to be at the predetermined inclination angle with respect to the attachment surface; and in the support step, the column member is brought into contact with the contact surface after the angle adjustment step. By using the above method, the angle of the column member relative to the beam member can be accurately determined simply by attaching the support jig to the beam member and maintaining the angle of the contact surface with respect to the mounting surface at a predetermined inclination angle, and then bringing the column member into contact with the support jig. Therefore, it becomes unnecessary to tilt and support the column member with a crane, thus improving work efficiency. In addition, since the angle can be adjusted before supporting the column member, it is possible to easily position it while improving the accuracy of the inclination angle. Therefore, it improves work efficiency and allows for precise positioning. [Effects of the Invention]

[0015] According to the column member support jig and column member support method of the present invention, work efficiency can be improved and positioning can be performed with high precision. [Brief explanation of the drawing]

[0016] [Figure 1] It is a diagram showing how to support a column member using a support jig. [Figure 2] It is a perspective view of the support jig. [Figure 3] It is a side view of the support jig. [Figure 4] It is a top view of the support jig. [Figure 5] It is a rear view of the support jig. [Figure 6] It is a process diagram of the method for supporting a column member. [Figure 7] It is a diagram for explaining the attachment process, and it is a view of the support jig seen from obliquely behind. [Figure 8] It is a diagram for explaining the attachment process, and it is a view of the support jig seen from the side. [Figure 9] It is a diagram for explaining the angle adjustment process. [Figure 10] It is a diagram for explaining the support process.

Mode for Carrying Out the Invention

[0017] Hereinafter, embodiments according to the present invention will be described with reference to FIGS. 1 to 10. This embodiment is used to position and support a column member to be attached to a beam member at a predetermined inclination angle with respect to the beam member, and relates to a "support jig for column member and method for supporting column member" that improves work efficiency and enables accurate positioning.

[0018] <Support jig> As shown in FIG. 1, the support jig 1 is a jig for positioning and supporting a column member P at a predetermined inclination angle with respect to a beam member B. Specifically, the column member P is arranged to extend in the vertical direction with respect to the beam member B extending in the horizontal direction, and is attached to the beam member B at a predetermined inclination angle. When attaching the column member P obliquely to the beam member B, the support jig 1 supports the column member P in a state where the angle of the column member P with respect to the beam member B is determined. As indicated by the arrows in Figure 1, "vertical direction" refers to the vertical direction when lifting or lowering the column member P to connect it to the beam member B. "Front-back direction" refers to the length direction of the beam member B. The width direction of the beam member B coincides with the horizontal direction and is perpendicular to the vertical and front-back directions.

[0019] First, let's explain beam member B and column member P. As shown in Figure 1, beam member B is a building component for joining column member P, and specifically is a large H-shaped steel beam that constitutes the beam of a single-slope roof. Beam member B is placed horizontally on the work platform, and column member P is joined to the surface of beam member B (specifically the upper flange surface). Furthermore, beam member B may be a beam other than a single-slope roof beam, or it may be a building component used for various purposes other than beams (for example, a square steel pipe).

[0020] As shown in Figure 1, the column member P is a building component joined to the beam member B, and specifically, it is a small H-shaped steel beam that constitutes a parapet support for a single-slope roof. The column member P is lifted by a crane and placed on the support jig 1, and while supported by the support jig 1, it is attached to the beam member B at a predetermined inclination angle. The column member P is attached to the beam member B such that the web surface faces diagonally upward and the flange surface faces sideways. Furthermore, the column member P may be a column other than a parapet support, or it may be a building component used for various purposes other than columns (for example, a square steel pipe). Also, the column member P may be larger than the beam member B.

[0021] As shown in Figure 1, the support jig 1 is a jig that is attached to the surface of the beam member B and supports the column member P. More specifically, the support jig 1 is attached to the upper flange surface Ba of the beam member B and supports the column member P by contacting the flange end Pa. The flange end Pa is the end of one flange surface of the column member P in the short direction. As shown in Figure 2, the support jig 1 comprises a base member 2 having a mounting surface 2a facing the surface of the beam member B, a positioning member 3 extending upward from the base member 2 to determine the mounting position of the column member P, and an angle adjustment member 4 for adjusting the angle of the positioning member 3 relative to the base member 2.

[0022] As shown in Figure 3, the positioning member 3 can be continuously switched by the angle adjustment member 4 between a position perpendicular to the mounting surface 2a of the base member 2 and a position parallel to the mounting surface 2a of the base member 2. As shown in Figure 1, the positioning member 3 has a contact surface 3a for contacting and holding the column member P. The angle adjustment member 4 holds the positioning member 3 so that the angle of the contact surface 3a with respect to the mounting surface 2a becomes a predetermined inclination angle. In other words, by holding the angle α between the mounting surface 2a and the contact surface 3a to a predetermined inclination angle using the angle adjustment member 4, the angle β between the beam member B and the column member P becomes a predetermined inclination angle when the support jig 1 supports the column member P (see Figure 10).

[0023] In this way, by simply bringing the flange end Pa of the column member P into contact with the contact surface 3a, the angle of the column member P relative to the beam member B can be determined with high precision. Therefore, it becomes unnecessary to tilt and support the column member P with a crane, thus improving work efficiency. In addition, since the angle can be adjusted with the support jig 1 before supporting the column member P, the positioning can be easily performed while improving the accuracy of the tilt angle. In this embodiment, as shown in Figure 1, the contact surface 3a contacts only one flange end Pa of the column member P. However, it is not limited to this, and the contact surface 3a may contact each end of both flanges of the column member P, or it may contact the web surface of the column member P.

[0024] <<Base component>> As shown in Figure 1, the base member 2 is attached to the beam member B so as to sandwich the upper flange surface Ba of the beam member B. As shown in Figure 2, the base member 2 has a main body portion 10 that extends along the width direction of the beam member B and has a mounting surface 2a, a guide portion 11 that can abut against the beam member B, and a fixing portion 12 that fixes the main body portion 10 to the beam member B. The guide portion 11 is provided at one end 10a of the main body portion 10 in the extending direction. The fixing portion 12 is provided at the other end 10b of the main body portion 10 in the extending direction. An angle adjustment member 4 is also provided on the upper surface of one end 10a of the main body portion 10.

[0025] As shown in Figure 4, the main body 10 is a metal plate having an L-shape when viewed from above. The main body 10 has a first portion 10c that extends in the width direction of the beam member B, and a second portion 10d that extends in the front-rear direction perpendicular to the first portion 10c. The first portion 10c extends in a long length so as to straddle the beam member B. The second portion 10d extends in a long length along the length direction of the beam member B. A long through-hole 10e is formed in the first portion 10c of the main body 10 in the direction of extension of the main body 10 (i.e., the width direction of the beam member B). A fixing part 12 is attached to the through-hole 10e formed in the first portion 10c so as to be movable in the width direction of the beam member B.

[0026] As shown in Figure 5, the lower surface of the main body 10 becomes the mounting surface 2a. In other words, the mounting surface 2a is positioned opposite the surface of the beam member B (i.e., the upper flange surface Ba). Also, the guide portion 11 is fixed to the lower surface of the second portion 10d. In this manner, the main body 10 is attached to the upper surface Ba of the flange of the beam member B, so as to clamp the beam member B from the width direction of the beam member B with the guide portion 11 and the fixing portion 12.

[0027] As shown in Figure 5, the guide portion 11 is a metal plate having an L-shape when viewed from the rear, and has a connecting portion 11a that connects to the lower surface of the main body portion 10, and a guide piece 11b that bends downward from the connecting portion 11a. More specifically, the connecting portion 11a is bolted or welded to the lower surface of the second portion 10d of the main body portion 10. The guide piece 11b extends downward from the portion of the connecting portion 11a that is close to the first portion 10c in the width direction. The guide piece 11b of the guide portion 11 abuts from the side against one end Bb in the width direction of the beam member B. In this way, the mounting position of the support jig 1 on the beam member B can be easily determined simply by bringing the guide piece 11b of the guide section 11 into contact with one end Bb of the beam member B from the side.

[0028] Furthermore, as shown in Figure 3, the guide section 11 extends in a long length along the front-rear direction (the length direction of the beam member B). As the guide piece 11b is elongated in the front-rear direction, the support jig 1 can be attached to the beam member B with high precision.

[0029] As shown in Figure 5, the fixing part 12 is a clamping member that clamps and fixes the other end Bc of the beam member B from above and below. The fixing part 12 clamps the other end Bc with the guide part 11 in contact with one end Bb of the beam member B, thereby fixing the main body part 10 to the beam member B. The fixing part 12 has an insertion part 12a that is inserted into the insertion hole 10e, a fixing piece 12b for clamping the other end Bc of the beam member B, and a handle 12c for manipulating the position of the fixing piece 12b. A nut 12d is screwed onto the lower part of the insertion part 12a. The handle 12c is fixed to the upper end of the insertion part 12a.

[0030] The fixing piece 12b, together with the first portion 10c of the main body 10, clamps the other end Bc of the beam member B from above and below. The operator can tighten or loosen the fixing piece 12b to the beam member B by rotating the handle 12c against the nut 12d. In this way, the worker can accurately and easily fix the main body 10 to the beam member B by operating the handle 12c to clamp and secure the other end Bc with the fixing piece 12b while the guide part 11 is in contact with one end Bb of the beam member B.

[0031] As shown in Figure 4, the fixing part 12 is slidably inserted into the insertion hole 10e in the width direction of the beam member B, and fixes the beam member B at a position corresponding to the width of the beam member B. More specifically, the worker loosens the fixing piece 12b by operating the handle 12c and moves the fixing part 12 within the insertion hole 10e. Then, at a position corresponding to the width of the beam member B, the worker tightens the fixing piece 12b against the beam member B with the handle 12c, thereby fixing the support jig 1 to the beam member B. In this way, the fixing part 12 allows the support jig 1 to be easily attached to beam members B of various widths.

[0032] <<Positioning Member>> As shown in Figure 2, the positioning member 3 includes an arm portion 20 extending upward from the base member 2, a contact portion 21 having a contact surface 3a, a horizontal positioning portion 22 that determines the horizontal position of the column member P supported by the contact surface 3a, and a holding portion 23 that holds the column member P supported by the contact surface 3a. The contact portion 21, the horizontal positioning portion 22, and the holding portion 23 are provided on the arm portion 20 and rotate together with the arm portion 20 relative to the base member 2.

[0033] The contact portion 21 is provided in two places, above and below the arm portion 20, but there may be one or three or more. Furthermore, the arm portion 20 and the contact portion 21 may be integrated (in other words, the arm portion 20 has a contact surface 3a). Furthermore, although two horizontal positioning units 22 are provided above and below the arm unit 20, there may be one or three or more. Furthermore, although one holding portion 23 is provided for the arm portion 20, there may be two or more.

[0034] As shown in Figure 4, the arm portion 20 is a metal plate having an L-shape when viewed from above. The arm portion 20 has a first arm piece 20a that extends in the direction of extension of the main body portion 10, and a second arm piece 20b that extends in the front-rear direction perpendicular to the first arm piece 20a. As shown in Figure 2, the arm portion 20 extends vertically. A contact portion 21 is fixed to the first arm piece 20a. A horizontal positioning portion 22 is fixed to the second arm piece 20b. An angle fixing portion 32, which will be described later, is attached to the lower part of the second arm piece 20b. Furthermore, a pivot shaft 31, which will be described later, is attached to the lower end of the second arm piece 20b.

[0035] The corner at the lower end of the second arm piece 20b is rounded (see Figure 8). By rounding the lower end of the second arm piece 20b, interference between the lower end of the second arm piece 20b and the main body 10 can be suppressed when the positioning member 3 rotates relative to the base member 2. Furthermore, if interference between the second arm piece 20b and the main body 10 can be suppressed, chamfering may be performed, for example, rather than just rounding. Also, the main body 10 may be provided with a notch to suppress buffering with the second arm piece 20b.

[0036] As shown in Figure 2, the contact portion 21 is a metal rectangular parallelepiped bolted or welded to the arm portion 20, and two of them are provided spaced apart in the vertical direction. In other words, the two contact portions 21 each protrude from the arm portion 20 in the direction of contact where the contact surface 3a contacts the column member P. Since the contact surface 3a protrudes forward of the first arm piece 20a (in other words, there is a gap between the flange end Pa and the arm portion 20), interference between the column member P and the base member 2 can be suppressed when rotated around the pivot axis 31 (see Figure 10). As shown in Figure 2, the retaining portion 23 is fixed to the upper contact portion 21. Alternatively, the retaining portion 23 may be fixed to the lower contact portion 21, or to both the upper and lower contact portions 21.

[0037] As shown in Figure 4, when the contact surface 3a is perpendicular to the mounting surface 2a of the base member 2, the ends (front end 2a1) of the contact surface 3a and the mounting surface 2a are positioned at the same location in the contact direction. In other words, at the position where the column member P is perpendicular to the beam member B (the position shown by the dashed line in Figure 4), the contact surface 3a for the column member P to abut against and the front end 2a1 of the mounting surface 2a are aligned. By doing this, the column member P can be accurately positioned relative to the beam member B simply by aligning the front end 2a1 of the mounting surface 2a with the reference line that serves as the target for the mounting position of the column member P to the beam member B.

[0038] As shown in Figure 3, two horizontal positioning units 22 are provided on the arm unit 20, spaced apart in the vertical direction. As shown in Figure 4, the horizontal positioning units 22 contact the column member P from the side to determine the horizontal position of the column member P (i.e., the position of the beam member B in the width direction). Since the lower horizontal positioning unit 22 and the upper horizontal positioning unit 22 have similar configurations, the configuration of the upper horizontal positioning unit 22 will be described as a representative example.

[0039] As shown in Figure 4, the horizontal positioning unit 22 has a mounting portion 22a provided on the arm portion 20, and a horizontal contact portion 22b attached to the mounting portion 22a for contacting the column member P from the width direction of the beam member B to determine the horizontal position. The horizontal contact portion 22b is attached to the mounting portion 22a so as to be movable in the horizontal direction (width direction of the beam member B).

[0040] As shown in Figure 2, the mounting portion 22a is a metal rectangular parallelepiped provided on the second arm piece 20b of the arm portion 20. The upper mounting portion 22a is fixed or welded to the upper part of the second arm piece 20b with a bolt. The lower mounting portion 22a is fixed or welded to the lower part of the second arm piece 20b with a bolt. As shown in Figure 4, a screw hole 22c is formed in the mounting portion 22a, which penetrates in the width direction of the beam member B.

[0041] The horizontal contact portion 22b is a bolt member extending in the width direction of the beam member B, and is movably attached to the screw hole 22c of the mounting portion 22a. The horizontal contact portion 22b has a male thread that engages with the female thread formed in the screw hole 22c. In other words, the worker can change the horizontal position of the tip of the horizontal contact portion 22b (i.e., the part that contacts the column member P) by rotating the horizontal contact portion 22b.

[0042] As shown in Figure 4, the tip of the horizontal contact portion 22b can contact the side of the column member P supported by the contact surface 3a (i.e., the flange surface Pb). The worker first rotates the horizontal contact portion 22b of the horizontal positioning unit 22 to determine the horizontal position of the column member P relative to the beam member B. Then, the worker can determine the horizontal position of the column member P by bringing the flange surface Pb of the column member P into contact with the tip of the horizontal contact portion 22b.

[0043] In this way, the position of the tip of the horizontal contact portion 22b can be adjusted, allowing the horizontal position to be easily adjusted to match the size of the beam member B or column member P. Furthermore, the horizontal position can be adjusted steplessly and easily by rotating the horizontal contact portion 22b relative to the screw hole 22c. In this embodiment, the horizontal positioning unit 22 was configured to allow adjustment of the position of the tip of the horizontal contact unit 22b, but the position of the horizontal contact unit 22b may be configured to be non-adjustable. For example, the positioning member 3 may be provided with a contact wall extending forward from the arm unit 20 or the contact unit 21. By bringing the column member P into contact with this contact wall from the side, the horizontal position of the column member P can be determined.

[0044] As shown in Figures 2 and 4, the holding portion 23 is provided on the arm portion 20 via a contact portion 21 and is for holding the column member P supported on the contact surface 3a. More specifically, the holding portion 23, together with the horizontal positioning portion 22, can clamp the column member P supported on the contact surface 3a from the width direction of the beam member B.

[0045] As shown in Figures 4 and 5, the holding portion 23 has a holding mounting portion 23a provided on the contact portion 21, and a clamping portion 23b attached to the holding mounting portion 23a for clamping the column member P together with the horizontal contact portion 22b. The clamping portion 23b is attached to the holding mounting portion 23a so as to be movable in the horizontal direction (width direction of the beam member B) and contacts the column member P from the side.

[0046] As shown in Figure 2, the retaining mounting portion 23a is a metal rectangular parallelepiped provided on the side surface of the contact portion 21. The retaining mounting portion 23a is bolt-fixed or welded to a surface perpendicular to the contact surface 3a of the contact portion 21. Alternatively, the retaining mounting portion 23a may be directly attached to the arm portion 20. As shown in Figure 4, the retaining mounting portion 23a has a clamping screw hole 23c that penetrates in the width direction of the beam member B.

[0047] The clamping portion 23b is a bolt member extending in the width direction of the beam member B, and is movably attached to the clamping screw hole 23c of the retaining mounting portion 23a. The clamping portion 23b has a male screw that engages with the female screw formed in the clamping screw hole 23c. In other words, the worker can tighten or loosen the tip of the clamping part 23b against the column member P by rotating the clamping part 23b.

[0048] As shown in Figure 4, the clamping portion 23b can clamp the flange of the column member P, which is supported on the contact surface 3a, together with the horizontal contact portion 22b of the horizontal positioning portion 22. The worker determines the horizontal position of the column member P by bringing the flange surface Pb of the column member P into contact with the tip of the horizontal contact portion 22b. The worker then rotates the clamping portion 23b and tightens it together with the horizontal contact portion 22b against the flange of the column member P, thereby fixing the column member P to the support jig 1.

[0049] In this way, the column member P can be supported by the holding portion 23, thereby increasing the support force of the positioning member 3 on the column member P. In particular, since the column member P can be clamped from the width direction of the beam member B, horizontal displacement can be suppressed. In this embodiment, the holding portion 23 was configured to clamp the flange of the column member P together with the horizontal contact portion 22b, but the column member P may be held by the holding portion 23 alone. Furthermore, the holding portion 23 may be provided on the base member 2.

[0050] <<Angle adjustment component>> As shown in Figure 1, the angle adjustment member 4 is a member for holding the positioning member 3 so that the angle of the contact surface 3a with respect to the mounting surface 2a becomes a predetermined inclination angle. The angle adjustment member 4 rotatably holds the positioning member 3 with respect to the base member 2 and adjusts the rising angle of the positioning member 3 with respect to the base member 2. As shown in Figure 2, the angle adjustment member 4 includes a rotating holding portion 30 that extends upward from the base member 2 and supports the positioning member 3, a pivot shaft 31 that supports the positioning member 3 relative to the rotating holding portion 30, and an angle fixing portion 32 that is attached to the positioning member 3 and fixes the angle of the positioning member 3 relative to the rotating holding portion 30. The angle fixing portion 32 moves in an arc around the pivot shaft 31 relative to the rotating holding portion 30.

[0051] As shown in Figure 3, the rotating holding portion 30 is a metal plate having a fan shape in side view and is provided on the main body portion 10. A pivot shaft 31 is attached to the lower front end of the rotating holding portion 30. Near the circumference of the rotating holding portion 30, an elongated hole 30a is formed that penetrates in the direction in which the pivot shaft 31 extends and extends along the circumference. In other words, the rotating holding portion 30 has an elongated hole 30a that is long in the direction in which the positioning member 3 rotates. As shown in Figure 5, the rotating holding part 30 is welded to the second part 10d of the main body 10 and is erected perpendicular to the main body 10.

[0052] As shown in Figure 5, the pivot shaft 31 is an axis that extends along the width direction of the beam member B. The lower end of the second arm piece 20b of the arm portion 20 is connected to the pivot holding portion 30 via the pivot shaft 31.

[0053] As shown in Figures 3 and 5, the angle fixing part 32 is mounted so as to be movable between the elongated holes 30a and fixes the positioning member 3 at a predetermined inclination angle. The angle fixing part 32 has a fixing screw 32a that is inserted through the elongated holes 30a and a fixing nut 32b that is screwed onto the fixing screw 32a. The fixing screw 32a is a bolt member extending in the width direction of the beam member B, and is attached to the rotating holding part 30 so as to be movable along the elongated hole 30a. The fixing nut 32b has a female thread that engages with the male thread of the fixing screw 32a. Washers (not shown) are attached to the fixing screw 32a and the fixing nut 32b.

[0054] The bolt head of the fixing screw 32a and the fixing nut 32b sandwich the arm portion 20 and the rotating holding portion 30, and when the fixing screw 32a and fixing nut 32b are fastened, the arm portion 20 is fixed at any position in the elongated hole 30a. Furthermore, when the fixing screw 32a and fixing nut 32b are loosened, the arm portion 20 becomes rotatable along the elongated hole 30a. Therefore, as shown in Figure 3, the angle fixing part 32 moves along the elongated hole 30a around the pivot axis 31 and is tightened at any position, thereby fixing the angle of the positioning member 3 with respect to the base member 2.

[0055] In this way, the tilt angle can be adjusted simply by rotating the positioning member 3 relative to the base member 2, allowing for easy positioning while increasing the accuracy of the tilt angle. In particular, since the angle fixing part 32 moves along the elongated hole 30a, the angle can be adjusted steplessly. In this embodiment, the angle can be adjusted steplessly by fastening the fixing screws 32a and fixing nuts 32b, but it is also possible to configure it to adjust the angle in steps. Furthermore, the angle adjustment member 4 adjusts the angle by rotating the positioning member 3 on the pivot shaft 31, but this is not limited to this. For example, multiple mounting points for the positioning member 3 on the base member 2 may be provided, and the angle may be adjusted by attaching the positioning member 3 to any mounting point.

[0056] <Method of supporting column members> Here, we will explain a method for supporting a column member P using a support jig 1 to position and support the column member P at a predetermined inclination angle relative to the beam member B. As shown in Figure 6, the method includes an "attachment step (S1)" in which the support jig 1, which includes a base member 2 to be attached to the beam member B and a positioning member 3 for determining the position of the column member P, is attached to the beam member B; an "angle adjustment step (S2)" in which the angle of the positioning member 3 relative to the base member 2 is adjusted; and a "support step (S3)" in which the column member P is supported by the contact surface 3a of the positioning member 3 after the angle adjustment step. Note that other work steps in the process of joining the beam member B and the column member P will not be explained.

[0057] In the "Installation Process (S1)," the worker installs the base member 2 so that its mounting surface 2a faces the surface of the beam member B. Specifically, as shown in Figure 7, the worker places the support jig 1 on the beam member B so that its mounting surface 2a faces the upper surface Ba of the flange. Then, with the guide portion 11 in contact with one end Bb of the beam member B, the worker operates the handle 12c to tighten the fixing piece 12b at a position corresponding to the width of the beam member B, thereby fixing the support jig 1 to the other end Bc of the beam member B. At this time, as shown in Figure 8, the worker aligns the front end 2a1 of the mounting surface 2a with the reference line that serves as the target for the mounting position of the column member P to the beam member B. Then, the worker places the angle meter M on the upper surface Ba of the flange of the beam member B and sets it so that the angle of the beam member B relative to the work floor is the reference angle (i.e., 0 degrees).

[0058] In the "angle adjustment process (S2)," the operator holds the positioning member 3 against the base member 2 so that the contact surface 3a is at a predetermined inclination angle with respect to the mounting surface 2a. Specifically, as shown in Figure 9, the operator first attaches the angle meter M to the contact surface 3a. The operator loosens the fixing screw 32a of the angle fixing part 32 and moves it along the elongated hole 30a around the pivot axis 31. Then, the operator tightens the fixing screw 32a at the position where the angle meter M is at a predetermined inclination angle, thereby fixing the angle of the positioning member 3 with respect to the base member 2. In this embodiment, an example where the angle is 88.85 degrees relative to the reference angle is shown, but the inclination angle is not limited to this and can be set as appropriate.

[0059] Furthermore, the worker operates the horizontal positioning unit 22 to determine the horizontal position of the column member P. First, the worker rotates the horizontal contact portion 22b of the horizontal positioning unit 22 (see Figure 4). The step of determining the horizontal position of the column member P may be performed either before or after adjusting the angle of the positioning member 3.

[0060] In the "support process (S3)," the worker adjusts the angle of the positioning member 3 relative to the base member 2, and then removes the angle meter M from the support jig 1. The worker then lifts the column member P with a crane and, as shown in Figure 10, brings the column member P into contact with the contact surface 3a of the positioning member 3, and supports the column member P with the support jig 1. After that, the worker operates the holding part 23 to hold the column member P with the support jig 1 and removes the crane from the column member P. Furthermore, the lower end of the web of column member P protrudes beyond the lower end of the flange of column member P. Therefore, the flange of column member P is supported by the two contact surfaces 3a of the support jig 1, and the web of column member P is supported by beam member B.

[0061] More specifically, the worker brings the flange end Pa of the column member P into contact with the two contact surfaces 3a, one above and one below. This allows the angle of the column member P to be determined. The worker can also determine the horizontal position of the column member P by bringing the flange surface Pb of the column member P into contact with the tip of the horizontal contact portion 22b (see Figure 4). The worker then rotates the clamping portion 23b and tightens the flange of the column member P with the clamping portion 23b and the horizontal contact portion 22b to fix the column member P to the support jig 1. After that, the worker removes the crane from the column member P and joins and fixes the column member P and the beam member B by welding or other means. Alternatively, the crane may be removed after the column member P and the beam member B have been joined and fixed by welding or other means.

[0062] In this way, the worker attaches the support jig 1 to the beam member B and maintains the angle of the contact surface 3a with respect to the mounting surface 2a at a predetermined inclination angle. By doing this, the angle of the column member P with respect to the beam member B can be accurately determined simply by bringing the column member P into contact with the support jig 1. Therefore, it becomes unnecessary to tilt and support the column member P with a crane, thus improving work efficiency. In addition, since the angle can be adjusted with the support jig 1 before supporting the column member P, the positioning can be easily performed while improving the accuracy of the inclination angle.

[0063] The above embodiment mainly described the support jig and method for supporting a column member according to the present invention. However, the embodiments described above are merely examples to facilitate understanding of the present invention and do not limit it. The present invention can be modified and improved without departing from its spirit, and of course, equivalents thereof are included. In particular, the embodiments described above are merely examples and do not limit the present invention. [Explanation of Symbols]

[0064] 1. Support jig 2 Base member 2a Mounting surface 2a1 front end 3 Positioning member 3a Contact surface 4 Angle adjustment member 10 Main body 10a One end 10b The other end 10c first part 10d second part 10e Through hole 11 Guide section 11a Connection part 11b Guide piece 12 Fixed part 12a Insertion part 12b Fixed piece 12c handlebars 12d nut 20 Arm section 20a First arm piece 20b Second arm piece 21 Contact part 22 Horizontal positioning unit 22a Mounting part 22b Horizontal contact part 22c screw holes 23 Holding part 23a Retaining and mounting part 23b Clamping part 23c clamping screw hole 30 Rotating holding part 30a long hole 31. Rotating shaft 32 Angle fixing part 32a Fixing screw 32b Fixing nut B Beam Member Ba flange top surface Bb One end Bc other end P column member Pa flange end Pb flange surface M Angle Meter

Claims

1. A support jig for positioning and supporting a column member, which is attached to a beam member at a predetermined inclination angle, at the predetermined inclination angle with respect to the beam member, A base member attached to the beam member and having a mounting surface facing the surface of the beam member, A positioning member extending upward from the base member and determining the mounting position of the column member, An angle adjustment member for adjusting the angle of the positioning member with respect to the base member, is provided, The positioning member has a contact surface for contacting and supporting the column member, The angle adjustment member is characterized by holding the positioning member so that the angle of the contact surface with respect to the mounting surface becomes the predetermined inclination angle, thereby providing a support jig for a column member.

2. The angle adjustment member is The positioning member is rotatably held relative to the base member, A rotating holding portion extending upward from the base member and holding the positioning member, A pivot shaft that holds the positioning member relative to the rotating holding portion, It has an angle fixing part attached to the positioning member, which fixes the angle of the positioning member with respect to the rotational holding part, The rotating holding portion has an elongated hole that penetrates in the direction in which the rotating shaft extends and is elongated in the direction in which the positioning member rotates. The column member support jig according to claim 1, characterized in that the angle fixing portion is configured to be movable between the elongated holes, and the positioning member is fixed at the predetermined inclination angle.

3. The positioning member is An arm portion extending upward from the base member, The arm portion is provided with a contact portion having the contact surface, The arm portion is provided with a horizontal positioning unit that determines the horizontal position of the column member in the width direction of the beam member, The horizontal positioning unit is The mounting portion provided on the arm portion, It has a horizontal contact portion attached to the mounting portion, which contacts the column member from the width direction of the beam member to determine the horizontal position, The column member support jig according to claim 1 or 2, characterized in that the horizontal contact portion is mounted so as to be movable in the horizontal direction relative to the mounting portion.

4. The positioning member is An arm portion extending upward from the base member, The arm portion is provided with a contact portion having the contact surface, A horizontal positioning unit is provided on the arm portion, which determines the horizontal position of the column member in the width direction of the beam member, It has a holding portion for holding the column member supported on the contact surface, The support jig for a column member according to claim 1 or 2, characterized in that the holding portion, together with the horizontal positioning portion, is capable of clamping the column member supported on the contact surface from the width direction of the beam member.

5. The positioning member is An arm portion extending upward from the base member, The arm portion is provided with a contact portion having the contact surface, The aforementioned contact portion protrudes from the arm portion in the direction of contact where the contact surface contacts the column member. The support jig for a column member according to claim 1 or 2, characterized in that when the contact surface is perpendicular to the mounting surface of the base member, the ends of the contact surface and the mounting surface are in the same position in the contact direction.

6. The base member is The main body portion extends along the width direction of the beam member and has the mounting surface, A guide portion is provided at one end of the main body in the extending direction and is capable of contacting the beam member, The main body portion has a fixing portion provided at the other end in the extending direction for fixing the main body portion to the beam member, The guide portion extends along the length of the beam member and abuts from the side at one end in the width direction of the beam member. The support jig for a column member according to claim 1 or 2, characterized in that the fixing portion fixes the main body portion to the beam member with the guide portion in contact with one end of the beam member.

7. The main body portion has an elongated insertion hole formed in the direction of extension of the main body portion. The support jig for a column member according to claim 6, characterized in that the fixing portion is slidably inserted into the insertion hole and fixes the main body portion to the beam member at a position corresponding to the widthwise length of the beam member.

8. A method for supporting a column member, which involves using a support jig to position and support the column member relative to a beam member at a predetermined inclination angle, An installation step of attaching the support jig, which includes a base member to be attached to the beam member and a positioning member for determining the position of the column member, to the beam member, An angle adjustment step for adjusting the angle of the positioning member with respect to the base member, The process includes a support step of supporting the column member with the contact surface of the positioning member, In the aforementioned mounting step, the mounting surface of the base member is mounted so as to face the surface of the beam member. In the angle adjustment step, the positioning member is held against the base member so that the contact surface is at the predetermined inclination angle with respect to the mounting surface. A method for supporting a column member, characterized in that, in the support step, the column member is brought into contact with the contact surface after the angle adjustment step.

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