JPH09221916A - Column node joint setting method and setting jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability by providing a column member receiving base on which column members above node and below node can be placed concentrically in response to various pipe diameters and providing an erection set base for holding an erection piece in radial direction in a position adjustable manner. SOLUTION: This column node joint setting jig is constituted with a column member receiving base 3, erection set base 4 and a backing strip set plate 5. Then, a column member above node 1A and a column member below node 1B are concentrically placed by using adjusting pieces on a plurality of column member receiving bases 3. Next, an erection set base 4 is located between the end portions of the column 1A and column 1B, and insertion attitude of the backing strip is corrected by a backing strip set plate 5 located between the bases 4. Then, the erection pieces 6 and 7 are attached by adjusting the radial position to erection receiving members 16A and 16B provided on the bases 4 at the position of almost 45 degrees from the horizontal position and are welded to corresponding columns 1A and 1B. By doing this, all erection pieces can be accurately welded in one process.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column-joint joint setting method and a setting jig for welding an erection piece, which serves as a column-joint joint between steel pipe column members, to each column member.

[0002]

2. Description of the Related Art Conventionally, when welding steel pipe column members to each other by welding with column joints, the erection pieces 41 and 42 to be the column joints are manufactured by a process shown in FIG. Each pillar material 40
Welded to A and 40B. That is, first, the back metal 43 that fits inside the pillar 40A is set on the node-side pillar 40A (FIG. 6A). Next, the above-mentioned node upper side pillar material 40A and the below-node side pillar material 40B are
It is also set on a jig (not shown) on the surface plate so that it is also set (FIGS. 6B and 6C). Next, both pillars 40A,
The erection set pedestals 44 are arranged at positions close to both sides of the 40B, and both pillar members 4 are placed on the erection set pedestals 44.
Each erection piece 41, 42 temporarily attached to both sides of 0A, 40B is placed in a horizontal posture, and in this set state, each erection piece 41, 42 is attached to a corresponding pillar member 40A, 4
Weld to both sides of OB (Fig. 6 (C),
(D)). In this case, the erection pieces 41 and 42 are positioned on the upper surfaces of the two pillar members 40A and 40B by the scribing 45, and the corresponding pillar members 40A and 40B are respectively positioned.
The erection pieces 41, 42 are welded to the upper surface of the (FIG. 6 (C), (D)). After completing the above work, both pillars 40
A and 40B are removed from the jig, the column members 40A and 40B are inverted so that the remaining one surface of both column members 40A and 40B is facing up, and the erection pieces 41 and 42 are welded to the remaining one surface.

[0003]

However, the temporary attachment work of the erection piece by the above method requires a long time because of the large number of steps. Further, some of the erection pieces 41, 42 are positioned by the marking 45 and temporarily attached, so that an error is likely to occur, and the combination of the node upper side column member 40A and the node lower side column member 40B can be freely changed. Can not. Therefore, there is a restriction on the joint joint work at the site, and the work takes time. In addition, when performing the same erection piece tacking work on the pillar materials having different pipe diameters, it is necessary to prepare another jig or erection set table 44 corresponding to the pipe diameter. There are many types.

An object of the present invention is to make a column joint capable of easily and accurately performing the erection piece temporary attaching work and performing the erection piece temporary attaching work of the column materials having different pipe diameters by one kind of jig. A joint setting method and a setting jig are provided.

[0005]

A method for setting a column joint according to the present invention is a method for welding an erection piece to be a column joint for temporary fixing of steel pipe columns to each other. Therefore, the following steps are performed. First, the nodal upper column member and the nodal upper column member are placed on the column member pedestal at concentric positions with a predetermined interval, and each erection piece to be welded to each of the four sides of both column members from the horizontal position is approximately 4
Attach it to the erection set base at the position rotated by 5 °. As the column member cradle, one that can always be supported in a concentric position even if the pipe diameter of the column member changes. As the erection set table, one that can change the mounting position of the erection piece in the radial direction of the pillar material according to the pipe diameter of the pillar material is used. According to this configuration, all the erection pieces can be accurately and temporarily attached to the four sides of the pillar material in one step without inverting the pillar material. Further, since the tacking accuracy is good, the joints can be jointed by freely changing the combination of the nodal upper side column members and the lower nodal side column members, and the joint work is greatly improved. Furthermore, even if the pipe diameter of the pillar material changes, the same jig can be used.

The column-joint joint set jig of the present invention is
This is a positioning jig for welding the erection piece that serves as a column joint for temporary fixing of steel pipe column members to each other, and the node upper column member and the node lower column member are concentric. It is provided with a column member receiving stand on which a predetermined interval is placed and an erection set stand for holding the erection piece. The column member pedestal is mounted on the pedestal body so that the adjustment piece that comes into contact with the column member can be changed in mounting position, and the column member can be positioned concentrically even if the pipe diameters are different. The erection set base is provided with four erection receiving members between a pair of set base bodies respectively located near the ends of the nodal upper side column members and the nodal lower side column members placed on the column member receiving base. And Each erection receiving member has a mounting surface parallel to the radial direction of the column member, which is installed corresponding to a position on the four sides rotated about 45 ° from the horizontal plane of the outer periphery of the column member, and the erection piece is attached to this mounting surface. It is assumed that a plurality of mounting holes for bolting are provided in a radially separated manner. According to this configuration, by placing the nodal upper side column member and the nodal side column member on the column member cradle, both column members can be arranged at concentric positions with a predetermined interval, and each erection piece is By bolting to the four erection receiving members of the erection set base using the bolt holes, it is possible to position the pillar members at a position rotated by about 45 ° from the horizontal position on the four sides. Also, by installing an adjustment piece on the pedestal body of the pillar pedestal to match the pipe diameter of the pillar material, both pillar materials can be concentrically positioned with the same pillar material cradle even for pillar materials of different pipe diameters. Can be placed on. In the post joint joint setting jig, the upper two erection receiving members have a receiving member main body fixed to the set base main body, and a mounting hole for the erection piece detachably provided in the receiving member main body. You may comprise with a liner. According to this configuration, after the erection piece is temporarily attached, the liner can be removed from the receiving material body of the erection receiving material, so that the pillar material can be removed from the erection set table above the erection receiving material without interfering with the erection receiving material. In the column joint joint setting jig, a backing metal set plate is provided between the two setting base bodies so as to be movable in the axial direction of the pillar material, and the backing metal set plate can be placed on the pillar material receiving base. It has a central opening with a diameter substantially equal to the pipe diameter of the largest diameter pillar material, and abuts the end surface of the backing metal inserted into the end of the pillar material at a plurality of locations on the inner periphery of this central opening. You may have a contact confirmation piece. According to this structure, the degree of insertion of the backing plate is adjusted over the entire circumference so that all the contact confirmation pieces of the backing plate set plate come into contact with the end surface of the backing plate inserted into the end of the pillar member. By doing so, the backing metal can be properly inserted into the end portion of the column member.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a side view showing a state in which a nodal upper side column member and a nodal side column member made of a round steel pipe to be weld-joined at a column node are placed on a column node joint setting jig of this embodiment. The column-joint joint set jig 2 includes a plurality of column-member receiving pedestals 3 on which the node-side upper column members 1A and the node-side column members 1B are placed at concentric positions at predetermined intervals, and the column members 1A and 1B. An erection set base 4 that supports the erection pieces 6 and 7 (FIG. 4) that are column joints for temporary fixing during mutual welding, and a backing plate 8 (FIG. 4) inserted at the end of the node upper column member 1A, for example. ) And a backing metal set plate 5 for confirming the inserted state.

As shown in the front view of FIG. 2 (A), the pillar-shaped pedestal 3 is a pedestal main body 9 of a generally L-shape having a vertical piece 9a and a horizontal piece 9b, and this pedestal. Two types of roughly L-shaped adjustment pieces 10A and 10B that are detachably attached to the main body 9.
It is composed of The adjustment piece 10 is provided on the cradle main body 9.
A plurality of mounting holes 11 and 12 for bolting A and 10B so that the mounting position can be changed are formed, and the lateral piece portion 9b thereof.
The upper edge, pillar 1A of intended mounting, among 1B, pillar 1A of the largest tube diameter, the circular arc portion 9b ₁ of curvature to follow the outer peripheral surface of 1B is formed, the arc portion 9b ₁ and the vertical The column members 1A and 1B are supported by the inner edge of the piece 9a. The side portions of the column members 1A and 1B opposite to the supporting portions by the vertical piece portions 9a are supported by other auxiliary supporting members 13 and 14 (FIG. 2A), if necessary. The auxiliary support member 14 is a wedge-shaped piece. The adjustment pieces 10A and 10B support the column members 1A ', 1B', 1A "and 1B" having a diameter smaller than the maximum pipe diameter at the concentric position as in the case of the column members 1A, 1B having the maximum pipe diameter. It has a vertical piece 10a and a horizontal piece 10b like the pedestal body 9, and also has a plurality of mounting holes 12 that are aligned with the mounting holes 11 of the pedestal body 9. The lateral piece 10b
Column materials 1A ', 1B', 1A ", 1 of the pipe diameter to be placed
An arc portion 10b ₁ having a curvature that follows the outer peripheral surface of B ″ is formed, and the pillar members 1A ′, 1B ′, 1A ″, 1B ″ are supported by the arc portion 10b ₁ and the inner edge of the vertical piece portion 10a. Instead of the L-shaped integral adjusting pieces 10A and 10B, a split type adjusting piece including only the vertical piece 10a and the horizontal piece 10b is slidably slidable. Bolted to the column material of each small pipe 1A ',
You may make it common to 1B ', 1A ", and 1B".

The erection set base 4 has the nodal upper side pillar members 1A, 1A ', 1A "mounted on the pillar member receiving base 3.
And a pair of set base bodies 1 each having a U-shaped cross section and located near the ends of the node-side pillars 1B, 1B ′, 1B ″.
The four erection receiving members 16A and 16B are provided between Nos. 5 and 15 (FIG. 2B). Each erection receiving member 16A, 16B has mounting surfaces 16a, 16b which are installed corresponding to respective positions on the four sides rotated by about 45 ° from the horizontal plane of the outer circumference of the pillar material and which are parallel to the radial direction of the pillar material. Further, a plurality of mounting holes 17 (FIG. 1) for bolting the erection pieces 6, 7 are formed in the mounting surfaces 16a, 16b so as to be separated in the radial direction. Of the erection receiving members 16A and 16B, the upper two erection receiving members 16A are a receiving member main body 18 fixed to the upper end of the set base main body 15 and a liner detachably attached to the receiving member main body 18. And 19. An attachment hole 20 for bolting the liner 19 is formed in the receiving material body 18.
(FIG. 1) is formed. In addition, the liner 19 has a mounting hole 21 that is aligned with the mounting hole 20 of the receiving material body 18.
(FIG. 1) and a mounting hole 1 for mounting the erection piece
7 (FIG. 1) are formed. The upper surface of the liner 19 becomes the mounting surface 16a of the erection receiving material 16A.

The backing metal set plate 5 shown in FIG. 1 is provided between the two set base bodies 15, 15 of the erection set base 4 so as to be movable in the axial direction of the column member. This plate 5
As shown in the front view in FIG. 2 (C), has a central opening 22 having a diameter substantially equal to the pipe diameter of the pillar materials 1A and 1B having the largest diameter that can be mounted on the pillar material receiving base 3. At a plurality of locations on the inner circumference of the central opening 22, close contact confirmation pieces 22a are formed at equal intervals so as to come into contact with the end surface of the backing plate 8 inserted into the end portions of the column members 1A to 1A ″. The four erection receiving members 16A, 16 of the erection set base 5 are provided on the left and right sides of the upper and lower sides of the backing metal set plate 5.
B and a notch 5a which allows the erection piece 7 attached to these receiving members to pass therethrough are formed.

Next, the procedure of the column joint joint setting method using the column joint joint setting jig 2 will be described.
As shown in FIG. 1, a nodal upper side column member 1A and a below-node side column member 1B made of round steel pipes to be welded to each other are placed on a plurality of column member receiving pedestals 3 at concentric positions with predetermined intervals. . At this time, the erection set table 4 is located between the ends of the two pillar members 1A and 1B. In the case of a pillar material having a maximum pipe diameter on which both pillar materials 1A and 1B can be placed, only the cradle main body 9 is used as the pillar material cradle 3. Further, when the column members 1A ', 1B', 1A ", 1B" having a smaller tube diameter than this are mounted, as shown by the chain line in Fig. 2 (A), the adjustment piece corresponding to the tube diameter is used. 10A and 10B are attached to the pedestal main body 9 by bolting to correspond.

The backing metal set plate 5 is arranged between the two set table bodies 15 and 15 (FIG. 1) of the erection set table 4 so as to be movable in the axial direction of the column member. At this time, since the cutouts 5a are formed on the left and right sides of the upper and lower sides of the backing metal set plate 5, the backing metal set plate 5 includes the four erection receiving members 16A and 16B of the erection set table 4. Will not interfere with. The backing plate 8 (FIG. 4) is inserted into one of the two pillar members 1A and 1B, for example, the end of the node upper pillar member 1A. The close contact confirmation piece 22a on the inner periphery of the central opening 22 of the backing metal set plate 5 is brought into contact with the end surface of the backing metal 8. At this time, it is checked whether there are any contact confirmation pieces 22a that are not in contact with the end surface of the backing plate 8, and the insertion position of the backing plate 8 is set so that all the contact confirmation pieces 22a contact the end surface of the backing plate 8. to correct. With this, the back deposit 8
Can be inserted properly.

In the installed state, the erection set base 4
Mounting surfaces 16a of the erection receiving members 16A and 16B,
16b, the erection piece 6, as shown in FIG.
7 is installed. That is, the erection receiving member 16A,
The erection pieces 6 corresponding to the predetermined positions of the mounting surfaces 16a and 16b of the 16B facing the ends of the node-side columnar members 1A, and the predetermined positions facing the ends of the node-side columnar members 1B. Set each erection piece 7 by bolting it. At this time, in the upper erection receiving member 16A, the liner 19 is bolted to the receiving member main body 18, and the erection pieces 6 and 7 are bolted to the liner 19. When bolting the erection pieces 6 and 7, the bolt insertion holes 23 and 24 (FIG. 4) of the pieces 6 and 7 are used as mounting holes. Further, in the case of the erection pieces 6 and 7 which are temporarily fixed to the pillar materials 1A ′, 1B ′, 1A ″, 1B ″ having a small pipe diameter, the liner 18 or the erection receiving member 16B is attached to the pipe diameter of the mounting hole 17. Select a mounting hole 17 that is closer to the axial direction of the pillar material by a suitable size and bolt it. At this time, since the notch 7a (FIG. 4) for allowing the welding work is formed on the inner edge of the erection piece 7 temporarily fixed to the sub-node side member 1B, the notch 7a and the backing Due to the presence of the cutout portion 5a of the gold set plate 5, the erection piece 7 becomes the backing metal set plate 5.
You can avoid interfering with. With the erection pieces 6 and 7 set in this way, the corresponding column members 1A,
Weld to 1B. According to the above procedure, the erection pieces 6 and 7 can be temporarily fixed to the pillar materials 1A and 1B accurately in one step. FIG. 4A shows a state in which the erection pieces 6 and 7 are temporarily fixed to the pillar materials 1A and 1B.

The pillar members 1A and 1B to which the erection pieces 6 and 7 are temporarily fixed in this way are jointed by welding at a portion such as a portion A of the steel frame building 30 as shown in FIG. It is supposed to be a steel pipe column. That is, as shown in FIG. 4 (B), the end of the backing metal 8 exposed from the lower end of the node-side pillar 1A is inserted into the node-side pillar 1B, and the ends of both pillars 1A and 1B are inserted. Both pillar members 1A and 1B are substantially butted up and down so that a root gap G for welding can be secured therebetween, and corresponding erection pieces 6 and 7 of both pillar members 1A and 1B are adjacent to each other in the same plane. To match. The attachment plates 26 are laid on both sides of the erection pieces 6 and 7, and the overlapping portion is attached to the bolt 3
Join at 1. In this joined state, the joint portions are welded to jointly join the two pillar members 1A and 1B. The temporarily fixed erection pieces 6 and 7 are cut and removed after the steel frame of the building is completed. In the steel-framed building of FIG. 3, column materials having different pipe diameters are used in the upper portion and the lower portion, but the erection pieces can be set with the same jig for the column materials having a plurality of types of pipe diameters.

FIGS. 5 (A) to 5 (C) are front views of a column member receiving stand, a front view cross-sectional view of an erection set table, and a backing metal in a column joint joint setting jig used for a square steel pipe column member. It is a front view of a set plate. Pillar cradle 3
Includes a pedestal body 9 having a substantially L-shape having a vertical piece portion 9a and a horizontal piece portion 9b, and adjusting pieces 10A and 10B detachably bolted to the pedestal body 9. The side piece 9
At the upper edge of b, a V-shaped groove 9 that follows the corners of the pillars 1'A, 1'B
b ₂ is formed. The adjustment pieces 10A and 10B are also generally L-shaped, each having a vertical piece portion 10a and a horizontal piece portion 10b, like the cradle main body 9, and the horizontal piece portion 10b has a column member 1'A having a small pipe diameter. V-shaped grooves 10b ₂ are formed to follow the corners of ', 1'B', 1'A ", 1'B". Other configurations are the same as those in the above embodiment.

In the case of this column-joint joint set jig 2, as in the case of the previous embodiment, the column member 1'of square steel pipe is used.
The work of temporarily fixing the erection plates 6 and 7 to A to 1′B ″ can be easily and accurately performed in one step without inverting the pillar material.

[0017]

According to the method of setting the column joints of the present invention, the column upper column members and the node lower column members are mounted on the column member receiving bases at concentric positions with a predetermined interval, and the four sides of both column members are placed. Attaching each erection piece to be welded to the erection set base at a position rotated by approximately 45 ° from the horizontal posture, and the pillar base can always be supported in the concentric position on the pillar base even if the diameter of the pillar is changed. Since the erection set base is such that the mounting position of the erection piece can be changed in the radial direction of the pillar material according to the pipe diameter of the pillar material, it is possible to perform one step without reversing the pillar material. Thus, all erection pieces can be temporarily and accurately attached to the 4 side of the pillar. Also,
Since the tacking accuracy is good, it is possible to freely change the combination of the nodal upper side column material and the nodal side column material, and the joint work efficiency is greatly improved. Furthermore, even if the pipe diameter of the pillar material changes, the same jig can be used. Further, the post joint joint setting jig of the present invention, a post material pedestal for placing the nodal upper side column material and the nodal side column material at concentric positions with a predetermined interval,
An erection set base for holding the erection piece is provided, and the pillar material receiving base is mounted concentrically even if the diameter of the pillar material is different by attaching an adjusting piece to be brought into contact with the pillar material to the main body of the receiving base. And the erection set base includes four erection receivers arranged between a pair of set base bodies respectively located near ends of the nodal upper side column members and the nodal lower side column members placed on the column member receiving base. Each erection receiving member is provided with a mounting surface parallel to the radial direction of the column member, which is installed at a position on the four sides rotated about 45 ° from the horizontal plane of the outer periphery of the column member. Since the mounting surface is provided with a plurality of mounting holes for bolting the erection piece in the radial direction, it can be used as follows. That is, by placing the nodal upper side pillar material and the nodal side pillar material on the pillar material receiving base, both pillar materials are arranged at a predetermined interval at concentric positions, and each erection piece is utilized by utilizing these bolt holes. By bolting to the four erection receiving members of the erection set table, each erection piece can be positioned at a position rotated by about 45 ° from the horizontal position on the four sides of both pillar members. Also, by installing an adjustment piece that matches the pipe diameter of the pillar material to the pedestal body of the pillar material cradle, even for pillar materials with different pipe diameters, both pillar materials can be placed in the concentric position with the same pillar material cradle. Can be placed. In the column joint joint setting jig, an upper two pieces of erection receiving material are fixed to the set base body,
In the case where the liner is detachably provided on the receiving member body and has a mounting hole for the erection piece,
By temporarily attaching the erection piece and then removing the liner from the main body of the erection receiving material, the pillar material can be removed upward from the erection set table without interfering with the erection receiving material. In the post joint joint setting jig, a backing metal set plate is provided between the two set base bodies so as to be movable in the axial direction of the post material,
The backing metal set plate has a central opening having a diameter substantially equal to the pipe diameter of the largest diameter pillar material that can be placed on the pillar material cradle, and at a plurality of locations on the inner circumference of the central opening, When the backing metal inserted into the end of the pillar has an adhesion check piece that abuts the end of the backing, the backing metal set on the end of the backing metal inserted into the end of the pillar. By adjusting the insertion degree of the backing plate over the entire circumference so that all the contact confirmation pieces of the plate come into contact with each other, the backing plate can be properly inserted into the end portion of the column member.

[Brief description of drawings]

FIG. 1 is a side view showing a state where a column-joint joint set jig according to an embodiment of the present invention is mounted with an upper-side node member and a lower-side column member made of a round steel pipe.

FIG. 2 (A) is a front view of a column member cradle in the jig,
(B) is a front view of the erection set table in the same jig, which is cut away, and (C) is a front view of a backing metal set plate in the same jig.

FIG. 3 is a front view of a steel frame of a building using joint joint pillars.

FIG. 4A is a perspective view of a pillar member in which an erection piece is temporarily fixed by the jig, and FIG. 4B is a perspective view showing a connected state of the pillar member.

FIG. 5 (A) is a front view of a column member cradle in a column joint joint setting jig according to another embodiment of the present invention,
(B) is a front sectional view of an erection set table in the same jig, and (C) is a front view of a backing metal set plate in the same jig.

FIG. 6 is an explanatory diagram of a conventional example.

[Explanation of Codes] 1A ... Node-side column member, 1B ... Node-side column member, 2 ... Column-joint joint set jig, 3 ... Column member cradle, 4 ... Erection set table, 5 ... Backing metal set plate, 6, 7 ... Erection piece, 8 ... Back metal, 9 ... Cradle body, 10A, 1
0B ... Adjustment piece, 15 ... Set base body, 16A, 16B ...
Erection receiving material, 16a, 16b ... Mounting surface, 17 ...
Mounting hole, 18 ... Receiving material body, 19 ... Liner, 22 ... Central opening, 22a ... Adhesion confirmation piece

Claims (4)

[Claims] 1. A method for setting an erection piece, which is a column-joint joint for temporary fixing of steel pipe-shaped column members to each other at the time of welding, to a method of setting each of the column members. The erection pieces are placed on concentric positions with a predetermined interval on the column base, and each erection piece to be welded to the four sides of both column members is attached to the erection set base at a position rotated approximately 45 ° from the horizontal position. For the pillar material cradle, use one that can be supported in a concentric position at all times even if the diameter of the pillar material changes.For the erection set pedestal, the mounting position of the erection piece can be changed depending on the diameter of the pillar material. A column joint joint setting method using a changeable radial direction. 2. A positioning jig for welding an erection piece, which serves as a column-joint joint for temporarily fixing steel pipe column members to each other when welding, to a column upper column member and a column lower column column. A column material pedestal for mounting the material at concentric positions at a predetermined interval and an erection set table for holding the erection piece are provided. It is possible to position the pillars concentrically even if they are attached to the main body so that the mounting position can be adjusted, and the erection set base is composed of the nodal upper side pillar material and the nodal side pillar material placed on the pillar material receiving base. It is assumed that four erection receiving materials are provided between a pair of set table main bodies located near the ends, and each erection receiving material corresponds to a position on the 4 side rotated approximately 45 ° from the horizontal plane of the outer periphery of the pillar material. Half of the pillars installed Having parallel mounting surface in the direction, and the pillar section joint set jig mounting holes apart in the radial direction is that plurality bolting the erection piece to the mounting surface. 3. The upper two erection receiving members are constituted by a receiving member main body fixed to the set base main body, and a liner detachably provided on the receiving base main body and having a mounting hole for the erection piece. The column-joint joint set jig according to claim 2. 4. A backing metal set plate is provided between the two setting base bodies so as to be movable in the axial direction of the pillar material, and the backing metal set plate is a pillar having a maximum diameter mountable on the pillar material receiving base. A close contact confirmation piece having a central opening having a diameter substantially equal to the pipe diameter of the material, and contacting the end surface of the backing metal inserted into the end of the pillar material at a plurality of locations on the inner periphery of the central opening. The column-and-joint joint set jig according to claim 2 or 3, which is provided.