JPH09317187A - Column erection adjusting jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a column erection adjusting jig increasing strength to operating force with the expansion of a jack with a simple construction in the column erection adjusting jig used for adding a new column vertically to the existing column. SOLUTION: Two splice plates 31 arranged by holding a column erection adjusting jig over up and down erection pieces 21 and 22 and bearing pieces 32 for bearing both ends in the expansion direction are formed together as a unit. Mounting members 43 are fixed to both ends in the expansion direction of a jack 4, and base sections 43a of them are so constructed that the end faces of the bearing pieces 32 are held in a contact state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column erection adjustment jig used to vertically add a new column to an existing column.

[0002]

2. Description of the Related Art As a method of adding a new column to an existing column, first, as shown in FIGS.
An erection piece (a rectangular plate having a plurality of bolt holes formed in the longitudinal direction) c is welded to the upper side surface of the existing column e and the lower side surface of the new column a. The erection piece c of the newly installed pillar a is sandwiched between two splice plates (plates that connect the upper and lower erection pieces) b, and these are temporarily attached with a bolt at the upper end. Suspend and put it on the existing pillar e. At this time, the erection piece c of the existing pillar e is sandwiched between the two splice plates b, and bolts are passed through the holes and tightened with nuts for temporary fixing.

Here, at least one of the upper and lower erection pieces c has a bolt hole or a splice plate b.
Since the bolt hole of is a stupid hole, it is possible to adjust the position and posture of the newly installed column by a large force of the strained wire rope or the like even after the bolt is fastened.

Further, as shown in FIG. 10, a wedge f is hammered between the upper and lower erection pieces c by a hammer g to adjust the verticality of a newly installed pillar a so that the pillar a is self-supported, and then the pillar is removed from the crane. Then, a strained wire rope (not shown) is stretched from the upper part of the new column a to adjust the tension, and the relative inclination of the new column a is corrected so that it becomes vertical. In this state, the existing column e and the new column a are welded.

However, in this method, since the strained wire rope is stretched to adjust the inclination of the column, the work of attaching and removing the rope is performed at a high place, and there is room for improvement in terms of safety. Since there is a problem that this rope interferes with other work and the work efficiency is not good, a method without using the strained wire rope has been proposed.

For example, Japanese Patent Publication No. 6-80270 discloses a method of using a jack instead of a strained wire rope. In this method, a joining plate is provided between an existing column and a new column. The jacks are temporarily fixed by bolts and nuts, and both ends in the expansion and contraction direction of the jack are fixed to the side surfaces of the columns through brackets that are separate from the joint plate. This bracket is made by projecting a plate material that has a jack mounting hole at the tip from the side of the pillar.Match the tip of the telescopic shaft at the top of the jack and the mounting hole at the bottom of the jack with the jack mounting hole of the bracket, The jack is attached between both pillars by passing through.

[0007]

However, in the method disclosed in Japanese Patent Publication No. 6-80270, the bracket does not have a structure in which the strength against the force acting with the expansion and contraction of the jack is particularly taken into consideration. It was That is, in the structure of the bracket, there is a problem that a load is applied to the pin when the expansion and contraction force of the jack is transmitted to the column via the bracket.

The present invention has been made by paying attention to such a point, and a simple pillar-installing adjustment jig used to vertically add a new pillar to an existing pillar is simple. An object of the present invention is to provide a structure having a high strength against a force acting as the jack expands and contracts.

[0009]

In order to achieve the above object, the invention according to claim 1 is a lower erection piece fixed to an upper part of a side surface of an existing pillar and a lower erection piece fixed to a lower part of a side surface of a new pillar. Upper erection piece, two splice plates that are sandwiched between the upper and lower erection pieces on each side, a jack that adjusts the spacing between the upper and lower erection pieces, and the outside (plate width) of the splice plate. A support piece that is disposed on the side opposite to the column side surface in the direction) and supports both ends in the expansion and contraction direction of the jack, the support piece being integrated with a splice plate or an erection piece, and (EN) Provided is a column erection adjusting jig, characterized in that both ends have contact surfaces arranged to contact the end surfaces of a support piece.

According to a second aspect of the present invention, a lower erection piece fixed to an upper portion of a side surface of an existing pillar, an upper erection piece fixed to a lower portion of a side surface of a new pillar, and upper and lower erection pieces for each side surface are provided. The two splice plates that are placed across it, the jack that adjusts the gap between the upper and lower erection pieces, and the splice plate that is placed outside (on the side opposite to the side surface of the column in the width direction) the aforesaid A supporting piece for supporting both ends of the jack in the expansion and contraction direction, the supporting piece being integrated with a mounting piece sandwiched between the splice plate and the erection piece, and both ends of the jack being the supporting piece of the supporting piece. Provided is a pillar erection adjusting jig having a contact surface arranged in contact with an end surface.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view showing a pillar erection adjusting jig corresponding to an embodiment of the present invention.
[Fig. 3] is a front view showing a state in which this pillar erection adjusting jig is attached to a pillar.

As shown in these drawings, the pillar erection adjustment jig includes a lower erection piece 22 fixed to the upper side surface of an existing pillar 12 and an upper erection piece 22 fixed to the lower side surface of a new pillar 11. An erection piece 21, two splice plates 31 arranged across the upper and lower erection pieces 21, 22 for each side surface, and a jack 4 for adjusting the interval between the upper and lower erection pieces 21, 22; Support pieces 32 that support both ends of the jack 4 in the expansion and contraction direction.

The upper and lower erection pieces 21 and 22 are
As in the conventional case, it is made of a rectangular plate material, and three bolt holes 21a, 22a are formed at equal intervals along the longitudinal direction thereof.

Splice plate 31 and support piece 32
Are integrally formed as a plate member 3 cut out in an L shape. The rectangular splice plate 31 corresponding to the L vertical bar portion of the plate member 3 has a length of the erection piece 2
The bolt holes 22a of the lower erection piece 22 and the three bolt holes 3a of the upper erection piece 21 which are slightly longer than the lengths of the first and second 22 pieces.
Is formed with three elongated holes 3b.

The width of the rectangular portion of the splice plate 31, in which the two bolt holes 3a are formed, extends outward (on the side opposite to the pillar side) from the end in the longitudinal direction. Has become. This support piece 3
Two bolt holes 3c are formed in 2 in parallel with the bolt holes 3a.

In the jack 4, screw shafts 42 are screwed onto both ends of a high nut 41 having a reverse screw thread cut up and down.
The attachment member 43 to the support piece 32 is fixed to the end surface of the. The mounting member 43 has a square base portion 43a in which the end surface of the screw shaft 42 is fixed to the center portion of one surface.
And a side plate portion 43b that extends vertically from the center portion by the length of the support piece 32 with the same width, and a claw portion 43c that is bent at a right angle from the side plate portion 43b. The side plate portion 43b has a screw of the support piece 32. A screw hole 43d corresponding to the hole 3c is formed. The claw portions 43c at both ends of the jack 4 are
The side plate portions 43b are bent on opposite sides. The surface of the base portion 43a opposite to the screw shaft 42 corresponds to the contact surface of the present invention.

Therefore, when installing a pillar, the corresponding upper and lower erection pieces 21 and 22 are turned upside down and the support piece 32 is removed from the pillar with the new pillar 11 placed on the existing pillar 12. It is sandwiched between two plate materials 3 arranged on the side away from each other. For example, for the upper side, from one plate material 3 side, the bolt hole 3a of the splice plate 31, the bolt hole 21a of the erection piece 21, and the elongated hole 3b of the splice plate 31 are arranged in this order. A nut is screwed on the tip of the penetrated bolt, and a nut is screwed on the tip of the bolt penetrated in the same order from the other plate 3 side on the lower side. Temporarily fix to the upper and lower erection pieces 21 and 22.

At the same time, the support piece 32 of each plate member 3 is provided between the base portion 43a and the claw portion 43c of the upper and lower mounting members 43.
And the support piece 32 is arranged on the upper side (the plate material 3 on the front side in FIG. 1), the lower end surface of the support piece 32 is arranged on the upper surface of the base portion 43a, and the support piece 32 is arranged on the lower side. On the side (the plate member 3 on the side to be placed in FIG. 1), the upper end surface of the support piece 32 is brought into contact with the lower surface of the base portion 43a, and in the screw hole 43d of the side plate portion 43b and the screw hole 3c of the support piece 32. The jack 4 is inserted into the support piece 32 of the plate member 3 by passing the bolt therethrough and screwing the nut onto the tip of the bolt.
Fixed to.

When the high nut 41 of the jack 4 is rotated in this state, the temporarily fixed bolt moves in the longitudinal direction in the elongated hole 3b of the splice plate 31, so that the upper and lower erection pieces 21 and 22 on each side surface of the pillar are moved. You can adjust the interval. Here, the base portion 43a of the mounting member 43 and the end surface of the support piece 32 are in surface contact with each other, and the splice plate 31 of the two plate members 3 and the erection pieces 21 and 22 sandwiched therebetween are penetrated. Due to the presence of the upper and lower three bolts, the pillar erection adjustment jig of this embodiment has a higher strength against the force acting as the jack 4 expands and contracts, as compared with the conventional structure.
Further, by this adjustment, when the newly installed pillar 11 is vertically arranged on the existing pillar 12, the splice plate 31
Fully tighten the bolt. Then, after the final tightening is completed, the jack 4 can be immediately removed (before welding the upper and lower columns) from the support plate 32, and the jack 4 can be used to add another column.

3 and 4 are a perspective view and a front view showing a mounting state of a pillar erection adjusting jig corresponding to another embodiment of the present invention. In this embodiment, a mounting piece 61 having the same shape as the bolt holes 21a and 22a forming portions of the erection pieces 21 and 22 is provided, and the supporting piece 62 is integrated with the mounting piece 61. That is, the plate member 6 in which the attachment piece 61 and the support piece 62 are integrated has a shape in which the width of the intermediate portion in the longitudinal direction of the rectangle forming the attachment piece 61 is expanded to the outside (the side opposite to the pillar side).
This portion serves as the support piece 62. This support piece 62 has one bolt hole 6 in parallel with the bolt hole 61a.
2a is formed.

In use, the erection pieces 21 and 22 and the plate member 6 are vertically sandwiched between two splice plates 5 arranged upside down, and the bolt holes 3a of the splice plate 5 are Each erection piece 2
The nuts are screwed into the tips of the bolts penetrating the bolt holes 21a and 22a of 1 and 22, the bolt hole 61a of the mounting piece 61, and the elongated hole 3b of the splice plate 5, and
The jack 7 is attached between the upper and lower support pieces 62 using the bolt holes 62a. Here, the jack 7 is shown in FIG.
As shown in FIG. 4, similar to the jack 4 described above, a high nut 71 having a reverse thread cut up and down is screwed with screw shafts 72 at both ends, but a support fixed to the end surface of each screw shaft 72 is provided. The structure of the attachment member 73 to the piece 62 is the same as that of the jack 4
This is different from the mounting member 43 in the case of.

The mounting member 73 has a square base 73a having the end surface of the screw shaft 72 fixed to the center of one surface thereof.
It is composed of two side plate portions 73b vertically extending from the two parallel sides by the length of the support piece 62.
A screw hole 73c corresponding to the screw hole 62a of the support piece 62 is formed in b. Then, when the bolt penetrates the screw hole 62a of the support piece 62 and the screw hole 73c of the mount member 73, the mounting member 73 is attached to the support piece 62.
The end surface of is contacted with the inner surface of the base 73a. That is, the inner surface of the base 73a (the surface opposite to the screw shaft 72) corresponds to the contact surface of the present invention.

Therefore, also in this embodiment, as in the case of the above-described embodiment, when the distance between the upper and lower erection pieces 21 and 22 is adjusted by expanding and contracting the jack 7, the mounting member 73 is used.
That the base 73a and the end face of the support piece 62 are in surface contact, and that the upper and lower three bolts that penetrate the two splice plates 5, the erection pieces 21 and 22 and the mounting piece 61 of the plate member 6 Due to the existence, the strength against the force acting with the expansion and contraction of the jack 4 is higher than that of the conventional structure. Further, by this adjustment, when the new column 11 is vertically arranged on the existing column 12, the bolts of the splice plate 5 can be fully tightened to immediately remove the jack 7 from the support plate 62.

In addition to this, in this embodiment, since the shape of the conventional splice plate 5 can be used as it is, the cost can be reduced. FIG.
It is a front view which shows the attachment state of the pillar erection adjustment jig corresponding to another embodiment of the present invention. In this embodiment, the width of the longitudinal middle portion of each erection piece 21 and 22 is outside (to the pillar side). By forming the support piece 62 into the erection pieces 21, 22 by expanding the shape to the opposite side).
The three bolts are inserted through the upper and lower parts of the splice plate 5 and the erection pieces 21 and 22. However, other points are shown in FIG.
And 4 are the same.

Therefore, in addition to the above-mentioned effects, there is an effect that the number of parts is reduced as compared with the embodiment shown in FIGS. In addition, as the jack that can be used in the present invention,
The jacks 4 and 7 are not limited to the screw type jacks 4 and 7 as in the above embodiments, and jacks 8 and 9 that expand and contract by fluid pressure such as hydraulic pressure or air pressure may be used as shown in FIGS. 7 and 8, for example. In the jack 8 of FIG. 7, mounting members 73 similar to those of FIG. 5 are fixed to both end surfaces in the expansion / contraction direction, and similarly to the above, the support piece 62 is mounted to the mounting members 73 with bolts. The jack 9 shown in FIG. 8 is a commercially available hydraulic jack in which the mounting member is not fixed.
The upper support piece 62 is placed on the upper plate 91a of the expansion / contraction shaft 91, and the base portion 92 of the jack 9 is placed on the lower support piece 62. In this case, the upper surface of the upper plate 91a and the lower surface of the base portion 92 correspond to the contact surface of the present invention.

[0026]

As described above, according to the first aspect of the invention, in the pillar erection adjustment jig used to vertically add the new pillar to the existing pillar, the splice plate or Equipped with a jack mounting support piece that is integrated with the erection piece, and a simple structure in which the contact surfaces that come into contact with the end surface of the support piece are provided at both ends of the jack. It is possible to increase the strength with respect to the force acting along with.

According to the second aspect of the present invention, in the pillar erection adjusting jig used to vertically add the new pillar to the existing pillar, the pillar erection adjusting jig is arranged so as to be sandwiched between the splice plate and the erection piece. It has a support piece for jack mounting that is integrated with the mounting piece, and has a simple structure in which the contact surfaces that come into contact with the end surface of the support piece are provided at both ends of the jack. It is possible to increase the strength with respect to the force acting along with.

[Brief description of drawings]

FIG. 1 is a perspective view showing a pillar erection adjustment jig corresponding to an embodiment of the present invention.

FIG. 2 is a front view showing a state in which the pillar erection adjustment jig of FIG. 1 is attached to a pillar.

FIG. 3 is a perspective view showing a pillar erection adjusting jig corresponding to another embodiment of the present invention.

FIG. 4 is a front view showing a state in which the pillar erecting adjustment jig of FIG. 3 is attached to a pillar.

5 is a front view showing a jack used in the pillar erection adjusting jig of FIG. 3. FIG.

FIG. 6 is a front view showing a mounted state of a pillar erection adjustment jig corresponding to another embodiment of the present invention.

FIG. 7 is a front view showing an example of a jack that can be used in the present invention.

FIG. 8 is a front view showing an example of a jack that can be used in the present invention.

FIG. 9 is a front view showing a conventional pillar building adjustment method.

FIG. 10 is a front view showing the next stage of FIG. 9 in the conventional method for adjusting the pillar erection.

[Explanation of reference numerals] 3 plate material in which splice plate and supporting piece are integrated 4 jack 5 splice plate 6 plate material in which mounting piece and supporting piece are integrated 7 jack 11 new pillar 12 existing pillar 21 upper erection piece 22 Lower erection piece 31 Splice plate 32 Support piece 43a Stand (contact surface) 61 Mounting piece 62 Support piece 73a Stand (contact surface)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Issei Motooka 1-25-1 Nishishinjuku, Shinjuku-ku, Tokyo Taisei Corporation

Claims (2)

[Claims] 1. A lower erection piece fixed to an upper portion of a side surface of an existing pillar, an upper erection piece fixed to a lower portion of a side surface of a new pillar, and an upper and lower erection piece for each side surface, and sandwiching the upper and lower erection pieces. And a support piece arranged outside the splice plate for supporting both ends of the jack in the expansion and contraction direction. Is a splice plate or an erection piece, and both ends of the jack have contact surfaces arranged to contact the end surfaces of the support pieces. 2. A lower erection piece fixed to an upper portion of a side surface of an existing pillar, an upper erection piece fixed to a lower portion of a side surface of a new pillar, and an upper and lower erection piece for each side surface, and sandwiching the upper and lower erection pieces. And a support piece arranged outside the splice plate for supporting both ends of the jack in the expansion and contraction direction. Is integrated with a mounting piece disposed between the splice plate and the erection piece, and both ends of the jack have contact surfaces arranged to contact the end surfaces of the support pieces. Adjustment jig.