JP2002349071A - Erection adjusting tool for pillar and erecting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tool for erecting a pillar and a pillar erecting method using the same, which does not deteriorate the use efficiency of work spaces, improves the safety of erection works, shortens a construction period, and enables delicate adjustment in a easy manner. SOLUTION: A splice plate 6 is arranged across an upper erection piece 5 and a lower erection piece 3, is connected unmovably to the upper erection piece 5. By fixing bolts 10, and connected movably in the vertical direction of the pillar to the lower erection piece 3 within the range of a long hole 9 for a bolt. A first slope part 12 is fixed to the splice plate 6 and a second slope part 14 is fitted on the first slope part 12 in such a way that the sloped surfaces of both slope pars are brought in contact each other. The first slope part 12 is pressed to the lower erection piece 3 by a verticality adjusting bolt 11, and the slope of the upper steel pipe pillar 4 is adjusted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column adjusting jig for adjusting a column at a joint thereof when a new column is built on an existing column, and a column mounting jig using the jig. About the method.

[0002]

2. Description of the Related Art Conventionally, when a new pillar is to be built on top of an existing pillar, first, as shown in FIGS. 6 and 7, for example, first, the upper part of the side of the existing pillar 51 and the side of the new pillar 52. An erection piece (a rectangular plate in which a plurality of bolt holes are formed along the longitudinal direction) 53 is welded to the lower part. The new pillar erection piece 53 is sandwiched between two splice plates (plates connecting the upper and lower erection pieces) 54 and temporarily attached with one bolt 55 at the upper end, and this new pillar is suspended by a crane. And put it on the existing pillar. At this time, the erection piece 53 of the existing pillar is sandwiched between the two splice plates 54, and the bolts 55 are passed through the respective holes, and the holes are temporarily tightened with nuts.

[0003] Then, wires (not shown) are stretched in four directions from the upper part of the new pillar, and the tension is adjusted with a turnbuckle or a chain block to correct the relative inclination of the new pillar so that it becomes vertical. I do. Here, since at least one of the bolt holes of the upper and lower erection pieces or the bolt hole of the splice plate is formed relatively larger than the bolt diameter, it is possible to adjust the position and posture of the newly-installed pillar even after the bolt is temporarily tightened. it can.

As described above, the bolts are fully tightened in a state where the new pillar is adjusted vertically, and the existing pillar and the new pillar are welded.

[0005]

In the above-mentioned conventional method, a wire is stretched to adjust the inclination of a newly-installed pillar, so that fine adjustment is difficult, and it takes time to adjust. Further, the working space below the section where the wire is stretched is restricted, so that the working space utilization efficiency is reduced.
In addition, there is a problem that since the wire is stretched from the top of the pillar, there is a risk of working at a high place.

For this reason, as shown in FIG. 7, a wedge 56 is inserted between upper and lower erection pieces 53 after the bolts are temporarily tightened, and a hammer 57 is used.
There has been proposed a method of adjusting the verticality of a newly installed pillar by driving it.

However, since the wedge is driven and adjusted by a hammer, it is difficult to control the wedge. If the wedge is driven in too much, the wedge must be returned, and the adjustment is time-consuming, resulting in poor work efficiency.

[0008] In view of the problems of the prior art, the present invention does not reduce the efficiency of use of a work space by using no wire when building a new pillar by adding a new pillar on top of an existing pillar. It is an object of the present invention to provide a jig for adjusting the construction of a pillar and a method of installing the pillar using the same, which can improve the safety of the construction work and can easily perform fine adjustment.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a lower erection piece on the upper side of an existing column and an upper erection piece on a lower side of a new column on the existing column. In the column adjustment jig mounted over the, is disposed over the upper erection piece and the lower erection piece, immovable relative to the upper erection piece, relative to the lower erection piece The splice plate that is connected movably in the vertical direction of the column and the splice plate connected to the upper and lower erection pieces are moved up and down with respect to the lower erection piece to adjust the inclination of the new column. And adjusting means for performing the adjustment.

[0010] In the jig for adjusting the construction of the pillar, the splice plate can be attached to the upper erection piece and the lower erection piece with bolts and nuts, and is connected to the lower erection piece of the splice plate. Bolt holes are long holes long in the vertical direction of the column, and the other bolt holes are of a size without play for the diameter of the bolt.

Further, the adjusting means includes a first inclined component fixed to the splice plate and a second inclined component assembled in such a manner that inclined surfaces are in surface contact with the first inclined component. And a vertical adjusting bolt capable of pressing the first inclined component against the lower erection piece, and the first splice plate is attached to upper and lower erection pieces, and the first The inclined surface of the inclined component faces downward, and is inclined from the lower side to the upper side so as to be away from the splice plate, and the inclined surface of the second inclined component faces upward,
Preferably, it is inclined from the upper side to the lower side so as to approach the splice plate.

[0012] With the above-mentioned adjusting means, when the second inclined component is pressed against the lower erection piece by tightening the vertical adjustment bolt and nut, the lower part is vertically moved to the lower erection piece. The first inclined part fixed to the splice plate movable in the direction is displaced upward along the inclined surface of the second inclined part with a force pushing toward the lower erection piece side, and the splice plate is moved upward. Can be moved. Conversely, when the bolt for vertical adjustment is loosened, the first inclined component is displaced down along the inclined surface of the second inclined component by the weight of the upper newly installed column added to the splice plate via the upper erection piece, The splice plate moves downward. Therefore, it is possible to easily and finely adjust the vertical adjustment bolt by screwing.

[0013] The present invention also relates to a method for installing a pillar using the above-mentioned pillar setting adjustment jig, wherein a step of holding a new pillar above the existing pillar is provided. Attach the splice plate of the column construction adjustment jig over the lower erection piece on the side and the upper erection piece on each side of the new pillar, and adjust the adjustment bolts of each construction adjustment jig as appropriate Turning the splice plate up and down with respect to the lower erection piece to rotate the splice plate clockwise or counterclockwise to adjust the inclination of the newly-installed pillar; The present invention proposes a pillar installation method including a step of welding a joint between a pillar and a newly-installed pillar, and a step of removing and removing a construction adjustment jig from upper and lower erection pieces.

[0014]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a side view showing a state in which a column setting adjustment jig according to an embodiment of the present invention is attached to a column.
3 is a diagram for explaining the components of the construction adjustment jig in FIG.

As shown in FIG. 1, the construction adjustment jig 1 of the present embodiment includes a lower erection piece 3 on the upper side of an existing lower steel pipe column 2 and an upper erection piece on a lower side of a newly installed upper steel pipe column 4. It has a single splice plate 6 arranged over both the erection piece 5.

The upper and lower erection pieces 3, 5 are made of a rectangular plate as in the prior art, and are arranged linearly in the direction in which the upper and lower columns extend.

Three round holes 7 for bolts are formed at equal intervals in the upper erection piece 5 along the length direction of the column, and similarly, two round holes 7 for bolts are formed in the lower erection piece 3. I have. And the splice plate 6
A bolt round hole 8 of the same diameter as the bolt round hole 7 is formed at the position of the three bolt round holes 7 of the upper erection piece 5, and a bolt elongated hole 9 of the lower erection piece 3 is formed. It is formed corresponding to the position of the two round holes 7 for bolts (FIG. 2).

The splice plate 6 is fastened and fixed with fixing bolts 10 and nuts over the upper and lower erection pieces 3 and 5.
It is formed so as to have no backlash with respect to the diameter of 0 and the vertical adjustment bolt 11.

The shape of the splice plate 6 for the upper and lower erection pieces 3 and 5 and the round holes 7 for bolts
The arrangement and number of the fixing bolts 10 are not limited to the state shown in FIG. 1 as long as the erection adjustment jig 1 is detachably attached to the upper and lower erection pieces 3 and 5 and the strength is satisfied. .

Since the bolt holes 7, 8, 9 are provided, the splice plate 6 disposed over the upper and lower erection pieces 3, 5 is provided with the upper erection piece 5,
Does not cause a displacement, but can move within a range of the length of the bolt elongated hole 9 with respect to the lower erection piece 3.

Therefore, when the splice plate 6 is moved, for example, toward the upper steel column 4 with respect to the lower erection piece 3 of the existing lower steel column 2, the upper erection plate 5 fixed to the splice plate 6 moves upward. The gap S between the pair of lower erection pieces 3 and the upper erection piece 5 is expanded by the force of the movement. That is, one side of the newly installed upper steel pipe column 4 is lifted up,
The new upper steel pipe column 4 is inclined with respect to the existing lower steel pipe column 2. In addition, the movement of the splice plate 6 to the opposite side to the above operation causes the newly installed upper steel pipe column 4 to the opposite side.
Leans. By such an operation, the verticality of the newly installed upper steel pipe column 4 can be adjusted.

Next, in order to tilt the newly installed upper steel pipe column 4,
The specific configuration for vertically moving the splice plate 6 with respect to the fixed lower erection piece 3 as described above will be described in detail.

As shown in FIG. 1, a first inclined part 12 is fixed to one side surface of the splice plate 6 at a position of the bolt elongated hole 9 of the splice plate 6. Also, the vertical adjustment bolt 1 is placed in a state where the second inclined component 14 comes into surface contact with the first inclined component 12 on the inclined surfaces.
It is assembled using 1 and a nut.

As shown in FIG. 2, the inclined surface 12a of the first inclined part 12 faces downward with the splice plate 6 attached to the upper and lower erection pieces 3 and 5 (FIG. 1). It is inclined upward and away from the splice plate 6. Further, a notch 13 is formed in the first inclined part 12 so that the elongated bolt hole 9 of the splice plate 6 penetrates to the inclined surface 12 a of the first inclined part 12.

On the other hand, as shown in FIG. 3, the inclined surface 14a of the second inclined part 14 is
5 is directed upward with the splice plate 6 attached thereto (FIG. 1), and is inclined so as to approach the splice plate 6 from the upper side to the lower side.

Further, a round hole 7 for a bolt of the lower erection piece 3, an elongated hole 9 for a bolt of the splice plate 6,
When the vertical adjustment bolt 11 passed through the notch 13 of the first inclined part 12 is in contact with the first inclined part 12 and the second inclined part 14 at the inclined surfaces 12a, 14a, the second inclination The second inclined component 14 is formed with a bolt round hole 15 through which the vertical adjustment bolt 11 passes so that the component 14 can be penetrated.

Due to such a part shape, the round hole 7 for the bolt of the lower erection piece 3 and the splice plate 6
The vertical adjustment bolt 11 is passed through the bolt elongated hole 9, the notch 13 of the first inclined part 12, and the bolt round hole 15 of the second inclined part 14, and the second When the inclined component 14 is pressed by tightening the vertical adjustment bolt 11 and the nut, the first inclined component 12 fixed to the vertically movable splice plate 6 is directed toward the lower erection piece 3. The pushing force causes the splice plate 6 to move up along the inclined surface 14a of the second inclined component 14, and the splice plate 6 moves upward. Conversely, when the vertical adjustment bolt 11 is loosened, the first inclined part 12 is moved to the inclined surface 14 a of the second inclined part 14 by the weight of the upper steel pipe column 4 added to the splice plate 6 via the upper erection piece 5. And the splice plate 6 moves downward.

In this embodiment, the inclined surfaces 12a, 1a
4a, while maintaining the surface contact, the inclined surface 12a as described above,
In order to surely cause the displacement between the first and second inclined parts 14a, the first inclined part 12 and the second inclined part 14 are guided by guide parts (FIGS. 2 and 3) that guide each other in a direction along the inclined surfaces 12a and 14a.
It has.

As shown in FIG. 2, the first inclined component 12 has first guide portions 16 on both sides facing each other with the inclined surface 12a interposed therebetween. On the other hand, as shown in FIG. 3, the second inclined component 14 has second guide portions 17 extending along the inclined surface 14a on both side surfaces facing each other across the inclined surface 14a.

Then, the first guide portion 16 in FIG.
A concave groove 16a that engages with the convex second guide portion 17 extends along the inclined surface 12a. In particular, the second guide part 17 having a convex shape is provided in the concave groove 16 a of the first guide part 16, and the first inclined part 12 and the second inclined part 14 are provided on the inclined surface 12.
a and 14a can be inserted in a state of surface contact.

In the present embodiment, the first guide part 16 having the concave groove 16a is provided on the first inclined part 12, and the convex second guide part 17 is provided on the second inclined part 14. The first inclined part and the second inclined part are mutually inclined surfaces 12a,
If the positional deviation can be caused while maintaining the surface contact of 14a, the first guide portion 16 and the second guide portion 17 are not limited to the shapes and arrangements shown in FIGS.

Next, a description will be given of a method of installing a pillar using the construction adjusting jig having the above configuration. FIG. 4 and FIG. 5 are diagrams for explaining the operation procedure of the pillar mounting method according to one embodiment of the present invention.

When the lower steel column 2 and the upper steel column 4 are to be built, first, the newly installed upper steel column 4 is suspended by a crane, and is put on the existing lower steel column 2. Then, as shown in FIGS. 4 and 5 (a), the splice plate 6 of the construction adjustment jig 1 is disposed over the upper and lower erection pieces 3, 5, and a fixing bolt 10 is attached to the upper erection piece 5. And fixed to the lower erection piece 3 with a fixing bolt 10 and a vertical adjustment bolt 11.

At this time, the upper erection piece 5
The fixing bolts 10 are respectively inserted into the bolt round holes 7 and the corresponding bolt round holes 8 of the splice plate 6.
Is inserted without play, and the splice plate 6 is fixed to the upper erection piece 5 by tightening with the fixing bolt 10 and the nut.

The round hole 7 for one bolt of the lower erection piece 3 and the corresponding splice plate 6
The vertical adjustment bolt 11 is passed through the long hole 9 for bolts, the first inclined part 12 and the second inclined part 14, and is fixed with a nut. Further, the fixing bolt 10 is passed through the other round hole 7 for bolt of the lower erection piece 3 and the corresponding long hole 9 for bolt of the splice plate 6, and the splice plate 6 is fixed to the lower erection piece 3. Temporarily fix it by tightening it with bolts 10 and nuts.

In this way, the construction adjustment jig 1 is attached to all the side surfaces of the upper and lower columns 2 and 4. Note that, in the present embodiment, the construction adjustment jigs 1 attached to the respective side surfaces of the column are at positions facing each other with the column interposed therebetween.

Thereafter, while confirming the verticality of the upper steel pipe column 4, the vertical adjustment bolt 11 is appropriately rotated clockwise or counterclockwise to cause the inclined surfaces of the inclined parts 12 and 14 to be displaced from each other, thereby causing a splice plate. The inclination of the upper steel pipe column 4 is adjusted by moving the upper and lower 6 vertically.

For example, in FIG. 5A, when the upper steel pipe column 4 is inclined toward the front of the drawing, as shown in FIG.
By turning the vertical adjustment bolt 11 clockwise, the second inclined part 14 is advanced with respect to the first inclined part 12. As a result, the inclined surface of the first inclined component 12 shifts upward along the inclined surface of the second inclined component 14, and the splice plate 6 for fixing the first inclined component 12 moves upward. As a result, the upper erection piece 5 separates from the lower erection piece 3 and the upper steel pipe column 4
The part on the side where the construction adjustment jig 1 is operated is lifted upward. That is, the upper steel pipe column 4 is lifted up as shown by the arrow in FIG. As a result, FIG.
The upper steel pipe column 4 inclined in front of the drawing in (a) can be adjusted vertically.

If the upper steel pipe column 4 is tilted too much, the vertical adjustment bolt 11 is turned counterclockwise to loosen it, and the second inclined part 14 can be retracted with respect to the first inclined part 12. As a result, the first inclined part 12 is inclined by the weight of the upper steel pipe column 4 applied to the splice plate 6 via the upper erection piece 5 by the inclined surface 14 a of the second inclined part 14.
And the splice plate 6 moves downward. Therefore, the gap between the upper and lower erection pieces 3 and 5 is reduced, and the inclination of the upper steel pipe column 4 can be returned to the original state.

When the upper steel column 4 becomes vertical, the joint between the lower steel column 2 and the upper steel column 4 is completely welded.

Finally, the upper and lower erection pieces 3, 5
Remove the bolts 10 and 11 and remove the construction adjustment jig 1 attached to.

In the above-described embodiment, the columns to be built are the rectangular steel tube columns 2 and 4 having a rectangular cross section, but the present invention is not particularly limited to this.

[0044]

As described above, according to the column adjusting jig of the present invention, the lower erection piece on each side of the existing column and the upper erection piece on each side of the new column are provided. The splice plate to be placed is mounted so as not to be movable with respect to the upper erection piece and movably in the vertical direction of the pillar with respect to the lower erection piece, and the splice plate thus mounted is adjusted. The inclination of the newly installed column can be adjusted by vertically moving the lower erection piece by means.

The adjusting means may include a first inclined part fixed to the splice plate and a second inclined part assembled such that the inclined surfaces are in surface contact with the first inclined part. And a vertical adjustment bolt capable of pressing the first inclined part against the lower erection piece, and the first inclined part is mounted with the splice plate attached to upper and lower erection pieces. The inclined surface of the component faces downward, and is inclined away from the splice plate from below toward the upper side, and the inclined surface of the second inclined component faces upward and from the upper side to the lower side. The configuration is such that it is inclined so as to approach the splice plate.

With such a configuration, when the second inclined component is pressed against the lower erection piece by tightening the vertical adjustment bolt and the nut, the first inclined component is pressed by the second inclined component. The splice plate can be displaced upward along the inclined surface of the inclined component, and the splice plate can be moved upward. Conversely, when the bolt for vertical adjustment is loosened, the first inclined component is displaced down along the inclined surface of the second inclined component due to the weight of the upper newly installed column added to the splice plate via the upper erection piece, The splice plate moves downward. Therefore, fine adjustment can be easily performed by screwing the vertical adjustment bolt.

Further, in the method of installing a pillar using the construction adjusting jig of the present invention, since a wire is not used for adjusting the inclination of a newly-installed pillar, the use efficiency of a work space is not reduced. In addition to improving the safety of construction work, fine adjustments can be easily made with the adjustment bolts. Therefore, it is possible to increase the work efficiency and shorten the construction period.

[Brief description of the drawings]

FIG. 1 is a side view showing a state in which a column setting jig according to an embodiment of the present invention is attached to a column.

FIGS. 2A and 2B show one of the components of the column adjustment jig of FIG. 1, wherein FIG. 2A is a side view, FIG. 2B is a view seen from the direction A in FIG. It is the figure seen from B direction in (a).

FIGS. 3A and 3B show another component of the column adjusting jig of FIG. 1, wherein FIG. 3A is a side view, FIG. 3B is a view seen from the direction C in FIG. FIG. 4 is a diagram viewed from the direction D in FIG.

FIG. 4 is a diagram for explaining an operation procedure of a method of mounting a pillar according to an embodiment of the present invention.

FIG. 5 is a diagram for explaining an operation procedure of a method of mounting a pillar according to an embodiment of the present invention.

FIG. 6 is a view for explaining a conventional example of a column-building jig and a method of building up.

FIG. 7 is a view for explaining a conventional example of a column mounting jig and a method of building up.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Construction adjustment jig of pillar 2 Lower steel pipe pillar 3 Lower erection piece 4 Upper steel pipe pillar 5 Upper erection piece 6 Splice plate 7,8 Round hole for bolt 9 Elongated hole for bolt 10 Fixing bolt 11 Vertical adjustment bolt 12 One inclined component 12a Inclined surface 13 Notch 14 Second inclined component 14a Inclined surface 15 Round hole for bolt 16 First guide portion 16a Groove 17 Second guide portion

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hiroshi Tanaka 2-35 Yatacho, Shinjuku-ku, Tokyo Dainippon Civil Engineering Co., Ltd. F term (reference) 2E174 AA01 BA03 DA12 DA32 DA37 DA58

Claims (4)

[Claims] 1. A jig for adjusting the construction of a pillar, which is mounted over a lower erection piece on an upper side of an existing pillar and an upper erection piece on a lower side of a new pillar above the existing pillar, A splice plate that is disposed across the upper erection piece and the lower erection piece, and is connected to the upper erection piece so as not to be movable, and to the lower erection piece so as to be movable in a vertical direction of a pillar. And a means for vertically moving the splice plate connected to the upper and lower erection pieces with respect to the lower erection piece to adjust the inclination of the newly installed column. Direction adjustment jig. 2. The splice plate can be attached to the upper erection piece and the lower erection piece by bolts and nuts, and only a bolt hole of the splice plate for connecting to the lower erection piece has a pillar shape. It is a long hole in the vertical direction,
2. The jig for adjusting a column according to claim 1, wherein the other bolt holes have a size with no play relative to the diameter of the bolt. 3. 3. The adjusting means comprises: a first inclined component fixed to the splice plate; and a second inclined component assembled such that inclined surfaces are in surface contact with the first inclined component. And a vertical adjustment bolt capable of pressing the first inclined component against the lower erection piece, wherein the first inclined part is mounted with the splice plate attached to upper and lower erection pieces. The inclined surface of the component faces downward, and is inclined away from the splice plate from below toward the upper side, and the inclined surface of the second inclined component faces upward and from the upper side to the lower side. The jig for adjusting the construction of a pillar according to claim 1 or 2, wherein the jig is inclined so as to approach the splice plate. 4. A method for mounting a pillar using the jig for adjusting the construction of a pillar according to claim 3, wherein a step of holding a new pillar on top of the existing pillar, and each side surface of the existing pillar Attaching the splice plate of the column adjustment jig over the lower erection piece and the upper erection piece on each side of the new column, and appropriately adjusting the adjustment bolt of each of the column adjustment jigs, By turning clockwise or counterclockwise to move the splice plate up and down with respect to the lower erection piece,
Adjusting the inclination of the new column, if the new column is vertical, welding the joint between the existing column and the new column, and removing the jig from the upper and lower erection pieces and removing it A pillar mounting method having steps.